Method for manufacturing protection device for pressing pump head

Update:27-07-2019
Summary:

[Technical Field] [0001] The present invention is direc […]

[Technical Field]
[0001] The present invention is directed to the field of water-milk cosmetic packaging devices, and more particularly to a protective device for pressing a pump head.
【Background technique】
[0002] In recent years, push-type pump heads have been widely known as packaging covers commonly used in water-milk-based products. The push-on pump head is spun from the top of the pump head when it leaves the factory, so liquid cannot flow out of the pump nozzle. At the same time, in order to be suitable for the user to receive the water emulsion solution while pressing with one hand, the pressure handle is usually designed to be elongated from the axial center to the outer diameter. However, the transportation process of cosmetics is completed in constant tilting and bumping, and the pressing handle is easy to rotate automatically. One end of the outer pressing handle is usually designed to be lengthened, which is easy to generate centrifugal force, accelerates the speed of the automatic rotating spring, and easily causes the pump head to break, the internal parts of the pump head to be damaged, and the pump head fails. In severe cases, even the water emulsion overflows, the product cannot be produced. Normal sales, resulting in technical problems that often require product replacement. In the prior art, there is a lockable water-milk cosmetic pump head, the patent number is 201120364759.Xo by adding a movable snap to the lower part of the pressure handle, but this can only prevent leakage caused by accidental depression of the pump head. , still can not fully protect the pump head.

[Summary of the Invention]

The problem to be solved by the present invention is how to provide a pump head protection cover that can effectively protect the pump head components and limit the overflow of the water.
In order to solve the above technical problem, the technical solution adopted by the present invention is to include a top plate and a side plate, and the top plate and the side plate are combined to form a cylindrical body with an opening at the side and the lower portion; a first limit is provided in the middle portion of the inner wall of the side plate. a positional snap ring, a first limit retaining ring, a side plate and a top plate are formed as a pressure shank height limiting chamber, and a distance between the upper surface of the first limiting snap ring and the lower surface of the top plate is slightly larger than the top of the pressing handle a distance between the upper surface of the torsion cover; a second limit retaining ring is disposed at a lower portion of the inner wall of the side plate, and the first limit retaining ring, the side plate and the second limit retaining ring surround the positioning chamber of the torsion cover, the first The distance between the lower surface of the limit retaining ring and the upper surface of the second limit retaining ring is slightly larger than the height of the torsion cover.
[0005] The first limit retaining ring and the second limit retaining ring are chamfered at both ends of the side opening.
[0006] The inner wall of the positioning chamber of the torsion cover is provided with a plurality of clamping teeth, and the end of the clamping tooth near the side opening is wider than the other end of the clamping tooth.
The length of the gripping teeth is less than 2/3 of the thickness of the positioning chamber of the torsion cap.
[0008] The end of the clamping tooth near the side opening is chamfered.
[0009] The edges of the lower sides of the side plates are provided with semi-circular snaps that are adapted to each other, and the semi-circular snaps are integrally injection molded with the top and side plates.
[0010] The positioning member of the buckle is chamfered, and the fastener is provided with an inverted groove.
[0011] The width of the upper portion of the side panels is less than the width of the lower portion of the side panels.
[0012] A protective cap is provided at one end of the top plate near the opening of the side portion.
[0013] The back plate of the side panel is provided with a through-handle through hole.
[0014] The invention has the advantages and positive effects: by controlling the rotation angle of the pressing handle, limiting the height of the pressing handle and limiting the torsion cover, the pump head is broken and the internal parts of the pump head are damaged. Technical problems leading to factory replacement due to pump head failure and water emulsion overflow. It reduces the number of returning factories due to transportation, saving energy, transportation and manpower related costs.
[Description of the Drawings]
1 is a schematic view of the structure created by the present invention.
2 is a front view of the creation of the present invention
3 is a rear view created by the present invention
4 is a left side view of the creation of the present invention
[0019] In the figure:
[0020] 1, the second limit snap ring 2, the clamping teeth 3, semi-circular buckle
[0021] 4, the first limit snap ring 5, the rib 6, the inverted groove
[0022] 7, protective cap 檐 8, pressure handle through hole
【Detailed ways】
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0023] The specific embodiments created by the present invention will be described in detail below with reference to the accompanying drawings.
[0024] As shown in FIG. 1, the present invention creates a cylindrical body which is formed by PP or PE injection molding through the top plate and the side plate, and the top plate and the side plate are combined to form a cylindrical body with openings at the side and the lower portion, and the pressure is fixed by the side opening. a rotation range of the handle; a first limit retaining ring 4 is disposed in a middle portion of the inner wall of the side plate, and the first limit retaining ring 4, the side plate and the top plate are combined into a pressure-retaining height-limiting chamber, and the first limit retaining ring 4 The distance between the upper surface and the lower surface of the top plate is slightly larger than the distance between the top of the pressing handle and the upper surface of the torsion cover; the lower portion of the inner wall of the side plate is provided with the second limit retaining ring 1, the first limiting retaining ring 4, the side plate And the second limiting snap ring I surrounds the positioning chamber of the torsion cover, the distance between the lower surface of the first limiting clasp 4 and the upper surface of the second limiting clasp I is slightly larger than the height of the torsion cover, The torsion cover is vertically positioned; the inner diameters of the first limit retaining ring 4 and the second limit retaining ring I are smaller than the outer diameter of the torsion cover. The torsion cover is also called a movable cover.
[0025] The first limit retaining ring 4 and the second limit retaining ring I are chamfered at both ends of the side opening, so that when the protective cover is installed, it is more labor-saving to push the torsion cover into the positioning chamber.
The inner wall of the positioning chamber of the torsion cover is provided with a plurality of clamping teeth 2, and the width of the end of the clamping tooth 2 close to the side opening is larger than the other end of the clamping tooth 2. Rubbing against the vertical stripes of the skirt of the torsion cover, the torsion cover can be horizontally clamped to ensure that the torsion cover cannot be rotated freely. The length of the clamping teeth 2 is less than 2/3 of the thickness of the positioning chamber of the torsion cover. The end of the clamping tooth close to the side opening is chamfered, which makes it easier to push the torsion cover into the positioning chamber when the protective cover is installed.
[0027] The edges of the lower sides of the lower side of the side panels are provided with mutually adapted semi-circular snaps, and the semi-circular snaps are integrally injection molded with the top and side panels. The positioning member of the buckle is chamfered, and the positioning member is easily inserted into the groove to be fastened when being embedded. If the fastener is provided with the undercut groove 6, it cannot be easily pulled out.
[0028] The width of the upper portion of the side panels is smaller than the width of the lower portion of the side panels, which can increase strength and save cost.
[0029] A protective cap 7 is disposed at one end of the top plate near the opening of the side portion, and the protective cap 7 is convexly arcuate to more effectively protect the pressing handle.
[0030] The back plate of the side plate is provided with a pressure-bearing through hole 8 to maximize the fit of the hand-pressed plastic pump head of various shapes, and can be adapted to the pressure handle having an extended end behind the pump head.
[0031] The inner wall of the top plate is provided with reinforcing ribs 5 to ensure that the pump head functions to strengthen the protective strength, and is not easily crushed when subjected to an external force from above.
The embodiments of the present invention have been described in detail above, but are not intended to limit the scope of the present invention. Equivalent changes and improvements in the scope of application for the invention shall remain within the scope of the patents created by the invention.
[sovereign item]
A protection device for pressing a pump head, comprising: a top plate and a side plate; the top plate and the side plate are combined to form a cylindrical body with an opening at the side and the lower portion; and a first limit snap ring is disposed at a middle portion of the inner wall of the side plate The first limit retaining ring, the side plate and the top plate are combined into a pressure-bearing height limiting chamber, and the distance between the upper surface of the first limiting snap ring and the lower surface of the top plate is slightly larger than the top of the pressing handle to the torsion cover. a distance between the surfaces; a second limit retaining ring is disposed at a lower portion of the inner wall of the side plate, and the first limiting snap ring, the side plate and the second limit retaining ring surround the positioning chamber of the torsion cover, the first limit The distance between the lower surface of the snap ring and the upper surface of the second limit retaining ring is slightly greater than the height of the torsion cover.
The protection device according to claim 1, wherein the first limit retaining ring and the second limit retaining ring are chamfered at both ends of the side opening.
The protection device according to claim 2, wherein the inner wall of the positioning chamber of the torsion cover is provided with a plurality of clamping teeth, and the width of the end of the clamping tooth near the side opening is larger than the other end of the clamping tooth. .
4. Protection device according to claim 2, characterized in that the length of the clamping teeth is less than 2/3 of the thickness of the positioning chamber of the torsion cover.
5. Protection device according to claim 3 or 4, characterized in that the end of the clamping tooth close to the side opening is chamfered.
6. The protection device according to claim 1, wherein the edges of the lower sides of the lower side plates are provided with mutually adapted semicircular snaps, and the semicircular snaps are integrally injection molded with the top and side plates.
The protection device according to claim 6, wherein the positioning member of the buckle is chamfered, and the fastener is provided with an inverted groove.
8. A protection device according to claim 1 wherein the width of the upper portion of the side panels is less than the width of the lower portion of the side panels.
9. The protection device according to claim 1, wherein a protective cap is provided at one end of the top plate near the opening of the side portion.
10. The protection device according to claim 1, wherein the back plate of the side plate is provided with a handle through hole.
[Patent Abstract] The present invention provides a protection device for pressing a pump head, which is integrally injection-molded by a top plate and a side plate, and the top plate and the side plate are combined to form a cylindrical body with openings at the side and the lower portion; the middle portion of the inner wall of the side plate is provided. a limit retaining ring, the first limit retaining ring, the side plate and the top plate are combined into a pressure-retaining height-limiting chamber, and a second limit retaining ring is arranged at a lower part of the inner wall of the side plate, the first limiting retaining ring and the side plate And a second limit card surrounds the positioning chamber of the torsion cover. The invention has the advantages and positive effects: by controlling the rotation angle of the pressing handle, limiting the height of the pressing handle and limiting the torsion cover, the pump head is prevented from being broken due to the break of the pump head and the internal components of the pump head. Technical problems of returning to the factory due to failure and water spillover. It reduces the number of returning factories due to transportation, saving energy, transportation and manpower related costs.

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