All-plastic recoverable pressing emulsion pump

Abstract

The utility model relates to the technical field of emulsion pumps, and provides an all-plastic recyclable pressing emulsion pump which comprises an installation cover and a combination cover, the combination cover is installed at the top end of the installation cover, an installation structure is arranged in the installation cover, a piston rod is arranged in the combination cover, and a pressing head is arranged at the top end of the piston rod. By arranging the pressing structure, the pressing head is pressed to drive the piston rod so as to push the piston sleeve to enable the pressing rod to be pressed downwards, so that the spring is compressed, the space in the pump body is reduced, the pressure is increased, and emulsion sucked by the suction pipe is extruded out of the spraying cavity through the pump body; due to the fact that the upper reverse blocking bead is arranged in the liquid container, the emulsion cannot flow back into the liquid container through the pump body, the liquid can only be squeezed out upwards by rushing through the upper reverse blocking bead, meanwhile, the upper reverse blocking bead and the lower reverse blocking bead block the channel under the action of gravity without being squeezed by external pressure, and the emulsion can be effectively prevented from being polluted by external bacteria.

Description

Technical Field

[0001] The utility model relates to the technical field of lotion pumps, in particular to a fully plastic recyclable pressing lotion pump. Background Art

[0002] A lotion pump is a liquid dispenser used in cosmetic containers. It pumps out the contents of the bottle by pressing, and uses the principle of atmospheric balance to replenish the outside air into the bottle. A fully plastic recyclable press lotion pump is an environmentally friendly packaging solution that aims to reduce lotion pollution and improve the recyclability of products.

[0003] To this end, the patent with publication number CN208915809U discloses an improved push-type lotion pump, wherein a connecting tube is arranged at the top of the bottle body, the connecting tube comprises a threaded tube and a smooth tube, the threaded tube is arranged above the smooth tube, the threaded tube is connected to a connecting cover by a thread, a pump body is installed in the middle of the connecting cover, a nozzle is installed at the top of the pump body, and the pump body is inserted into the bottle body, a main suction pipe is arranged at the bottom of the pump body, a secondary suction pipe is inserted at the bottom of the main suction pipe, a liquid diaphragm is glued and fixed at the bottom of the secondary suction pipe, a cushion block is clamped in the middle of the smooth tube, a groove is opened at the top of the bottle body, a glue layer is arranged in the groove, and one side of the glue layer is glued and fixed to one side of the cushion block, and the utility model can work by using the secondary suction pipe when the amount of lotion is small, so that the lotion at the bottom of the side wall can be squeezed out as much as possible, thereby avoiding the waste of lotion;

[0004] The improved push-type lotion pump described above has a weak overall sealing performance during use, and when the pump body is pressed, the lotion in the pump head is easily contaminated by the outside and flows back into the bottle body, which makes it difficult to effectively block the channel to prevent contamination. Utility Model Content

[0005] The utility model aims to provide a fully plastic recyclable push lotion pump to solve the defect that the existing improved push type lotion pump is easy to cause pollution.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a fully plastic recyclable press lotion pump, comprising a mounting cover and a combination cover;

[0007] A combination cover is installed at the top of the installation cover, a mounting structure is arranged inside the installation cover, a piston rod is arranged inside the combination cover, a pressure head is arranged at the top of the piston rod, and a spray chamber is arranged inside the pressure head;

[0008] A pressing structure is arranged inside the mounting structure, and the pressing structure comprises a pressing rod, a piston sleeve, an upper cavity, an upper reverse resistance bead, a lower cavity and a spring. The pressing rod is arranged inside the mounting structure, and a piston sleeve is arranged outside the pressing rod. An upper cavity is arranged inside the pressing rod at the top of the piston sleeve, and an upper reverse resistance bead is arranged at the bottom end of the upper cavity. A lower cavity is arranged inside the pressing rod at the bottom of the piston sleeve, and a spring is arranged inside the lower cavity.

[0009] A limiting cavity is arranged at the bottom end inside the installation structure, a lower reverse resistance bead is arranged inside the limiting cavity, and a straw is arranged at the bottom end of the installation structure.

[0010] Preferably, the interiors of the mounting cover and the combining cover are both provided with internal threads, the diameter of the mounting cover is larger than the diameter of the combining cover, and one end of the combining cover extends to the interior of the mounting cover.

[0011] Preferably, the mounting structure includes a pump body, a valve body, a protrusion, a brace, a rib, a waterproof ring and a sealing gasket. The pump body is arranged inside the mounting cover, the bottom end of the pump body is provided with a valve body, the bottom end of the valve body is provided with a protrusion, the top end of the pump body is provided with a brace, the outside of the brace is evenly provided with ribs, the outside of the pump body at the bottom of the brace is provided with a waterproof ring, and the bottom end of the waterproof ring is provided with a sealing gasket.

[0012] Preferably, one end of the pump body extends to the outside of the mounting cover, the diameter of the valve body is smaller than the diameter of the pump body, and the diameter of the protrusion is smaller than the diameter of the valve body.

[0013] Preferably, a groove matching the convex rib is provided inside the combining cover, and the braces and the combining cover are interlockedly connected via the convex rib.

[0014] Preferably, the outer side of the bottom of the combining cover conflicts with the inner wall of the pump body, the top end of the waterproof ring conflicts with the top end of the inside of the mounting cover, and the bottom end of the waterproof ring conflicts with the top end of the sealing gasket.

[0015] Preferably, the outer side of the top of the pressure rod conflicts with the inner side of the piston rod, the top end of the piston sleeve conflicts with the bottom end of the combining cover, and the inner side of the piston sleeve conflicts with the outer side of the bottom of the piston rod.

[0016] Preferably, the interior of the upper cavity is communicated with the interior of the lower cavity, and the pressure rod and the pump body form a telescopic structure through a spring.

[0017] Preferably, the outer diameter of the limiting cavity is smaller than the inner diameter of the pump body, the diameter of the lower reverse resistance bead is smaller than the diameter of the limiting cavity, the top end of the suction pipe conflicts with the bottom end of the valve body, and the outer side of the suction pipe conflicts with the inner side of the protrusion.

[0018] The utility model provides a fully plastic recyclable press lotion pump, which has the following advantages:

[0019] By providing an installation structure, by setting the installation cover on the pump body, the combination cover has a groove matching the convex rib, when the convex rib is connected with the groove, the toothed sleeve and the combination cover can be easily engaged and connected, and the operation is simpler compared with the threaded connection with higher precision requirements. By providing a waterproof ring and a sealing gasket, the installation cover has good sealing and waterproof performance when installed;

[0020] By providing a pressing structure, the pressing head drives the piston rod to push the piston sleeve to press the pressure rod downward, so that the spring is compressed, the space inside the pump body is reduced, and the pressure is increased, so that the straw absorbs the emulsion and squeezes it out from the ejection chamber through the pump body. Due to the existence of the limiting chamber and the lower reverse resistance bead, the emulsion cannot flow back into the liquid container through the pump body, so the liquid can only break through the upper reverse resistance bead and squeeze upward. At the same time, when there is no external pressure squeezing, the upper and lower reverse resistance beads will block the channel under the action of gravity, which can effectively prevent external bacteria from contaminating the emulsion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the enlarged structure of the A position in the figure combination cover of the utility model;

[0024] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the pressing structure of the utility model;

[0025] Figure 5 For the utility model Figure 4 Enlarged structural diagram at B in the middle.

[0026] Explanation of the reference numerals in the figure: 1. Installation cover; 2. Combination cover; 3. Installation structure; 301. Pump body; 302. Valve body; 303. Bump; 304. Braces; 305. Raised rib; 306. Waterproof ring; 307. Sealing gasket; 4. Piston rod; 5. Pressure head; 6. Ejection chamber; 7. Pressing structure; 701. Pressure rod; 702. Piston sleeve; 703. Upper chamber; 704. Upper reverse resistance bead; 705. Lower chamber; 706. Spring; 8. Limiting chamber; 9. Lower reverse resistance bead; 10. Straw. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 5 The utility model provides a fully plastic recyclable press lotion pump, which includes a mounting cover 1 and a combining cover 2.

[0029] Reference Figure 1 , Figure 4 and Figure 5 As shown, a combining cover 2 is installed at the top of the installing cover 1, and the insides of the installing cover 1 and the combining cover 2 are both provided with internal threads, the diameter of the installing cover 1 is larger than the diameter of the combining cover 2, one end of the combining cover 2 extends to the inside of the installing cover 1, and the inside of the installing cover 1 is provided with a installing structure 3, and the installing structure 3 includes a pump body 301, a valve body 302, a convex block 303, a tooth sleeve 304, a convex rib 305, a waterproof ring 306 and a sealing gasket 307, the pump body 301 is arranged inside the installing cover 1, the bottom end of the pump body 301 is provided with a valve body 302, the bottom end of the valve body 302 is provided with a convex block 303, the top end of the pump body 301 is provided with a tooth sleeve 304, and the outer side of the tooth sleeve 304 is evenly provided with convex ribs The outer side of the pump body 301 is provided with a waterproof ring 306 at the bottom end of the tooth sleeve 304, and a sealing gasket 307 is provided at the bottom end of the waterproof ring 306. One end of the pump body 301 extends to the outside of the mounting cover 1. The diameter of the valve body 302 is smaller than the diameter of the pump body 301. The diameter of the protrusion 303 is smaller than the diameter of the valve body 302. The interior of the combining cover 2 is provided with a groove matching the convex rib 305. The tooth sleeve 304 and the combining cover 2 are interlockedly connected through the convex rib 305. The outer side of the bottom of the combining cover 2 conflicts with the inner wall of the pump body 301, the top end of the waterproof ring 306 conflicts with the top end of the inside of the mounting cover 1, and the bottom end of the waterproof ring 306 conflicts with the top end of the sealing gasket 307.

[0030] By sleeve-mounting the mounting cover 1 on the pump body 301, a groove matching the convex rib 305 is provided in the coupling cover 2. When the convex rib 305 is connected with the groove, the toothed sleeve 304 and the coupling cover 2 can be conveniently engaged and connected. Compared with a threaded connection with higher precision requirements, the operation is simpler. By arranging a waterproof ring 306 and a sealing gasket 307, the mounting cover 1 can have good sealing and waterproof properties when installed.

[0031] Reference Figure 2-Figure 4As shown, a piston rod 4 is arranged inside the combination cover 2, a pressure head 5 is arranged at the top end of the piston rod 4, an ejection chamber 6 is arranged inside the pressure head 5, a pressing structure 7 is arranged inside the mounting structure 3, the pressing structure 7 includes a pressure rod 701, a piston sleeve 702, an upper chamber 703, an upper resistance bead 704, a lower chamber 705 and a spring 706, the pressure rod 701 is arranged inside the mounting structure 3, a piston sleeve 702 is arranged on the outside of the pressure rod 701, an upper chamber 703 is arranged inside the pressure rod 701 at the top of the piston sleeve 702, an upper resistance bead 704 is arranged at the bottom of the upper chamber 703, a lower chamber 705 is arranged inside the pressure rod 701 at the bottom of the piston sleeve 702, a spring 706 is arranged inside the lower chamber 705, and the pressure rod 701 is arranged inside the mounting structure 3. The outer side of the top of 701 conflicts with the inner side of the piston rod 4, the top of the piston sleeve 702 conflicts with the bottom end of the combining cover 2, the inner side of the piston sleeve 702 conflicts with the outer side of the bottom of the piston rod 4, the interior of the upper chamber 703 is connected with the interior of the lower chamber 705, the pressure rod 701 and the pump body 301 form a telescopic structure through the spring 706, and a limiting cavity 8 is provided at the bottom end of the mounting structure 3, the outer diameter of the limiting cavity 8 is smaller than the inner diameter of the pump body 301, and a lower reverse resistance bead 9 is provided inside the limiting cavity 8, and the diameter of the lower reverse resistance bead 9 is smaller than the diameter of the limiting cavity 8. A straw 10 is provided at the bottom end of the mounting structure 3, the top of the straw 10 conflicts with the bottom end of the valve body 302, and the outer side of the straw 10 conflicts with the inner side of the protrusion 303.

[0032] By pressing the pressure head 5, the piston rod 4 is driven to push the piston sleeve 702 to press the pressure rod 701 downward, so that the spring 706 is compressed, the space inside the pump body 301 is reduced, and the pressure is increased, so that the straw 10 absorbs the emulsion and squeezes it out from the ejection chamber 6 through the pump body 301. Due to the existence of the limiting chamber 8 and the lower reverse resistance bead 9, the emulsion cannot flow back into the liquid container through the pump body 301, so the liquid can only break through the upper reverse resistance bead 704 and squeeze upward. At the same time, when there is no external pressure, the upper reverse resistance bead 704 and the lower reverse resistance bead 9 will block the channel under the action of gravity, which can effectively prevent external bacteria from contaminating the emulsion.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fully plastic recyclable squeeze lotion pump, comprising a mounting cover (1) and a coupling cover (2); Features: A combining cover (2) is installed at the top end of the installation cover (1), a mounting structure (3) is arranged inside the installation cover (1), a piston rod (4) is arranged inside the combining cover (2), a pressure head (5) is arranged at the top end of the piston rod (4), and a spray chamber (6) is arranged inside the pressure head (5); A pressing structure (7) is arranged inside the installation structure (3), and the pressing structure (7) comprises a pressing rod (701), a piston sleeve (702), an upper chamber (703), an upper reverse resistance bead (704), a lower chamber (705) and a spring (706); the pressing rod (701) is arranged inside the installation structure (3); a piston sleeve (702) is arranged on the outer side of the pressing rod (701); an upper chamber (703) is arranged inside the pressing rod (701) at the top of the piston sleeve (702); an upper reverse resistance bead (704) is arranged at the bottom end of the upper chamber (703); a lower chamber (705) is arranged inside the pressing rod (701) at the bottom of the piston sleeve (702); and a spring (706) is arranged inside the lower chamber (705); A limiting cavity (8) is arranged at the bottom end inside the installation structure (3), a lower reverse resistance bead (9) is arranged inside the limiting cavity (8), and a suction pipe (10) is arranged at the bottom end of the installation structure (3).

2. The all-plastic recyclable squeeze lotion pump according to claim 1, characterized in that: The interiors of the installation cover (1) and the combination cover (2) are both provided with internal threads, the diameter of the installation cover (1) is larger than the diameter of the combination cover (2), and one end of the combination cover (2) extends to the interior of the installation cover (1).

3. The all-plastic recyclable squeeze lotion pump according to claim 1, characterized in that: The mounting structure (3) comprises a pump body (301), a valve body (302), a convex block (303), a toothed sleeve (304), a convex rib (305), a waterproof ring (306) and a sealing gasket (307); the pump body (301) is arranged inside the mounting cover (1); the valve body (302) is arranged at the bottom end of the pump body (301); the convex block (303) is arranged at the bottom end of the valve body (302); the toothed sleeve (304) is arranged at the top end of the pump body (301); the outer side of the toothed sleeve (304) is evenly provided with convex ribs (305); the outer side of the pump body (301) at the bottom end of the toothed sleeve (304) is provided with a waterproof ring (306); and the bottom end of the waterproof ring (306) is provided with a sealing gasket (307).

4. The all-plastic recyclable squeeze lotion pump according to claim 3, characterized in that: One end of the pump body (301) extends to the outside of the mounting cover (1), the diameter of the valve body (302) is smaller than the diameter of the pump body (301), and the diameter of the protrusion (303) is smaller than the diameter of the valve body (302).

5. The all-plastic recyclable squeeze lotion pump according to claim 3, characterized in that: A groove matching the convex rib (305) is provided inside the combining cover (2), and the tooth sleeve (304) and the combining cover (2) are connected in a chimeric manner via the convex rib (305).

6. The all-plastic recyclable squeeze lotion pump according to claim 3, characterized in that: The outer side of the bottom of the combining cover (2) contacts the inner wall of the pump body (301), the top of the waterproof ring (306) contacts the top of the inside of the mounting cover (1), and the bottom of the waterproof ring (306) contacts the top of the sealing gasket (307).

7. The all-plastic recyclable squeeze lotion pump according to claim 1, characterized in that: The outer side of the top of the pressure rod (701) contacts the inner side of the piston rod (4), the top of the piston sleeve (702) contacts the bottom of the coupling cover (2), and the inner side of the piston sleeve (702) contacts the outer side of the bottom of the piston rod (4).

8. The all-plastic recyclable squeeze lotion pump according to claim 1, characterized in that: The interior of the upper chamber (703) is connected to the interior of the lower chamber (705), and the pressure rod (701) and the pump body (301) form a telescopic structure through a spring (706).

9. The all-plastic recyclable squeeze lotion pump according to claim 1, characterized in that: The outer diameter of the limiting cavity (8) is smaller than the inner diameter of the pump body (301), the diameter of the lower reverse resistance bead (9) is smaller than the diameter of the limiting cavity (8), the top end of the suction tube (10) abuts against the bottom end of the valve body (302), and the outer side of the suction tube (10) abuts against the inner side of the protrusion (303).

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