Environment-friendly all-plastic emulsion pump easy to recycle

Abstract

The utility model relates to the technical field of emulsion pumps, in particular to an environment-friendly easy-to-recycle all-plastic emulsion pump which comprises a pump body detachably connected with a bottle opening. The liquid pumping assembly is arranged on the pump body and used for pumping liquid in the bottle to the outside; the liquid pumping assembly further comprises a pressing head which is arranged at the top of the pump body and can move up and down, the liquid pumping assembly further comprises a flow channel which is formed in the pressing head and allows liquid to flow out, the flow channel communicates with the hollow structure in the self-locking column, and a liquid pushing assembly is further arranged in a liquid outlet of the flow channel. The liquid pushing assembly comprises a sleeve inserted into the flow channel, a supporting piece is arranged on the front portion of the sleeve, a groove for liquid to flow out is further formed in the supporting piece, and a through hole is further formed in the sleeve. According to the emulsion pump, the liquid pushing assembly is additionally arranged in the flow channel, when the emulsion pump stops pumping, the liquid pushing assembly pushes liquid in the flow channel back, and the problem that the liquid in the flow channel flows out, and paste is attached to the discharging port is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lotion pumps, in particular to an environmentally friendly and easily recyclable all-plastic lotion pump. Background Art

[0002] In the consumer chemical packaging sector, lotion pumps, as core components of liquid dispensers, are widely used in cosmetics, personal care, and household cleaning products. Traditional lotion pumps typically utilize a metal spring as a reset element, combined with a plastic-metal composite structure to achieve their function.

[0003] Chinese patent CN221558734U discloses a fully plastic foam pump with a built-in plastic spring, comprising a pump body detachably connected to a bottle mouth, wherein a first chamber, a second chamber and a third chamber are sequentially arranged in the pump body along the opposite direction of liquid extraction, a liquid pumping assembly is arranged in the second chamber, and the first chamber and the third chamber are connected through the liquid pumping assembly; a spring ball, wherein the spring ball is arranged in the second chamber, the liquid pumping assembly is arranged along the axial direction of the spring ball and passes through the spring ball, and the spring ball is squeezed when the liquid pumping assembly performs the liquid pumping work. This patent transforms the pump body into a fully plastic pump by replacing the metal spring with a plastic spring, thereby avoiding the spring from contacting the liquid and making it more convenient to recycle. There is no need to disassemble the spring, thereby achieving highly efficient recycling processing and being able to recycle.

[0004] Although this prior art replaces the metal spring with a plastic spring to facilitate subsequent recycling, the pump's check structure uses a plastic ball to prevent liquid from flowing back into the bottle. In actual use, the ball seals the bottle by relying on its own gravity. When the pump is pressed down to pump out the liquid, the ball can easily get stuck inside the lower cavity, thereby affecting the next pumping of the liquid. However, this prior art lotion pump has significant flaws in its check structure. The check structure uses a plastic ball to prevent liquid from flowing back into the bottle. In actual use, when the pump is pressed down to pump out the liquid, the plastic ball is impacted by the liquid and can easily get stuck in the channel of the lower cavity. Once the beads are stuck, they will hinder the normal flow of the liquid, resulting in the liquid being unable to enter the lower cavity during the next pumping operation, seriously affecting the next pumping operation. After the lotion pump is pumped, a portion of the liquid will remain in the flow channel. These residual liquids flow out from the discharge port under the action of gravity, causing the problem of cream hanging on the discharge port, which not only affects the product experience, but also easily causes liquid waste. Utility Model Content

[0005] The purpose of the utility model is to provide an environmentally friendly and easily recyclable all-plastic lotion pump. By adding a liquid pushing component in the flow channel, when the lotion pump stops pumping, the liquid pushing component pushes the liquid in the flow channel back to prevent the liquid in the flow channel from flowing out and causing the problem of cream hanging at the discharge port.

[0006] In order to solve the problems of the existing technology, the utility model provides an environmentally friendly and recyclable all-plastic lotion pump, comprising: a pump body, which is detachably connected to the bottle mouth; a liquid pumping assembly is arranged on the pump body for pumping the liquid in the bottle to the outside; the liquid pumping assembly also includes a pressing head arranged at the top of the pump body and capable of moving up and down, and the liquid pumping assembly also includes a flow channel for liquid outflow provided in the pressing head, the flow channel is connected to the hollow structure in the self-locking column, and a liquid pushing assembly is also provided inside the liquid outlet of the flow channel, the liquid pushing assembly includes a sleeve inserted into the flow channel, and a support member is provided at the front of the sleeve, a groove for liquid outflow is also provided on the support member, a through hole is also provided in the sleeve, and a movable liquid pushing plug is also provided on the sleeve, one end of the liquid pushing plug can block the through hole in the sleeve, and a liquid pushing spring is also provided between the support member and the liquid pushing plug for resetting the liquid pushing plug.

[0007] Preferably, the push spring is made of plastic.

[0008] Preferably, the pump body includes a pipe interface that can penetrate into the bottle and is used to connect the pipe. A lower cavity and an upper cavity are arranged in sequence inside the pump body from bottom to top. A reflux valve is also provided between the pipe interface and the lower cavity to prevent the liquid in the lower cavity from flowing back into the bottle. When the liquid pumping component is pressed, the reflux valve is closed, and the liquid in the lower cavity is pumped out by the liquid pumping component. When the liquid pumping component is reset, the reflux valve opens, and the liquid in the bottle enters the lower cavity.

[0009] Preferably, the reflux valve is an elastic diaphragm, the bottom of the center position of the elastic diaphragm extends to the intersection of the lower cavity and the pipeline interface, and the reflux valve is also provided with a groove for liquid to pass through.

[0010] Preferably, the liquid pumping assembly includes a spring seat provided at the junction of the lower cavity and the upper cavity and used to separate the lower cavity from the upper cavity.

[0011] Preferably, a self-locking column is provided at the bottom of the pressing head, the interior of the self-locking column is hollow, and a piston tube is also provided at the bottom of the self-locking column, which extends into the spring seat and can slide up and down in the spring seat.

[0012] Preferably, the pumping assembly further comprises a fully plastic spring arranged above the spring seat, and the fully plastic spring is sleeved on the outside of the piston tube, the top end of the fully plastic spring abuts against the upper end of the piston tube, and the lower end of the fully plastic spring abuts against the spring seat.

[0013] Preferably, the liquid pumping assembly also includes a main column movably arranged at the upper end of the interior of the piston tube, and the top end of the main column expands outward to form an inverted cone-shaped sealing block, and the top end of the piston tube is enclosed to form a sealing groove adapted to the sealing block. The liquid pumping assembly also includes a secondary tube arranged at the bottom of the piston tube, and the bottom of the main column extends to the upper part of the interior of the secondary tube.

[0014] Preferably, the liquid pumping assembly further comprises a lower piston connected to the bottom of the auxiliary pipe, and the lower piston is arranged at the bottom of the spring seat, and a through groove is further arranged in the center of the lower piston and communicated with the auxiliary pipe.

[0015] Preferably, the pump body comprises an outer cover sleeved at the top of the pump body, and a lock cover body is arranged on the inner side of the outer cover, and a lock cover cap is arranged at the top of the lock cover body, and a screw thread is arranged on the inner wall of the outer cover and engaged with the screw thread of the bottle, and a gasket is arranged at the joint of the outer cover and the pump body, and the lock cover body is sleeved outside the self-locking column, and the self-locking column can slide up and down in the lock cover body.

[0016] The utility model discloses compared with prior art's beneficial effect is: in the environmental protection easy recovery full plastic emulsion pump design of the application, through setting up push liquid subassembly, the problem of paste in the discharge port is solved, specifically speaking, when the user presses the pressing head, liquid from the pump body inside enters the sleeve through the flow channel. Under the action of liquid pressure, the push liquid plug is pushed, and the push liquid spring is moved away from the support in the direction of overcoming the elastic force, at this time, the through hole in the sleeve is opened. Liquid passes through the through hole in the sleeve, and then flows out of the liquid outlet of the flow channel through the groove on the support, realizing the discharge of liquid. When the user releases the pressing head, the liquid pressure disappears, and the push liquid spring releases the elastic potential energy stored, and pushes the push liquid plug to move to the direction close to the support. After the push liquid plug moves to a certain position, one end of the push liquid plug blocks the through hole in the sleeve, preventing liquid from continuing to flow out, and solving the problem that liquid in the flow channel flows out and causes paste in the discharge port when not in use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic diagram of an environmental protection easy recovery full plastic emulsion pump of the utility model;

[0018] Figure 2 It is a front view structure schematic diagram of an environmental protection easy recovery full plastic emulsion pump of the utility model;

[0019] Figure 3 It is a cross section structure schematic diagram of an environmental protection easy recovery full plastic emulsion pump of the utility model;

[0020] Figure 4 It is a push liquid subassembly cross section structure schematic diagram of an environmental protection easy recovery full plastic emulsion pump of the utility model;

[0021] Figure 5 It is a three-dimensional structure schematic diagram of a backflow valve of an environmental protection easy recovery full plastic emulsion pump of the utility model;

[0022] Figure 6 It is a backflow valve cross section structure schematic diagram of an environmental protection easy recovery full plastic emulsion pump of the utility model.

[0023] The numbers in the figure are: 1. Pump body; 11. Pipe interface; 12. Lower cavity; 13. Return valve; 14. Upper cavity; 2. Liquid pumping assembly; 21. Pressing head; 211. Flow channel; 22. Self-locking column; 23. Piston tube; 24. Main column; 25. All-plastic spring; 26. Spring seat; 27. Lower piston; 3. Outer cover; 31. Screw thread; 4. Locking cap; 5. Locking cover body; 6. Gasket; 7. Liquid pushing assembly; 71. Support; 72. Sleeve; 73. Liquid pushing plug; 74. Liquid pushing spring. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Figures 1-6 As shown, the present invention provides an environmentally friendly and easily recyclable all-plastic lotion pump, comprising: a pump body 1, detachably connected to the bottle mouth; a liquid pumping assembly 2, arranged on the pump body 1 for pumping liquid from the bottle to the outside; the pump body 1 includes a pipe interface 11 that can penetrate into the bottle and is used to connect to a pipe. A lower cavity 12 and an upper cavity 14 are arranged in sequence from bottom to top inside the pump body 1. A reflux valve 13 is also provided between the pipe interface 11 and the lower cavity 12 to prevent the liquid in the lower cavity 12 from flowing back into the bottle. When the liquid pumping assembly 2 is pressed, the reflux valve 13 closes, and the liquid in the lower cavity 12 is pumped out by the liquid pumping assembly 2. When the liquid pumping assembly 2 is reset, the reflux valve 13 opens, and the liquid in the bottle enters the lower cavity 12. The reflux valve 13 is an elastic diaphragm, and the bottom of the center position of the elastic diaphragm extends to the intersection of the lower cavity 12 and the pipe interface 11. The reflux valve 13 is also provided with a groove for liquid to pass through.

[0026] When the liquid extraction assembly 2 moves downward, the reflux valve 13 closes, blocking the passage between the lower cavity 12 and the liquid in the bottle. At this time, the force generated by the liquid extraction assembly 2 acts on the liquid in the lower cavity 12, pumping the liquid in the lower cavity 12 to the outside, thus achieving the liquid extraction function. After the liquid extraction assembly 2 is reset, the reflux valve 13 opens, and the liquid in the bottle is sucked into the lower cavity 12.

[0027] The pumping assembly 2 includes a spring seat 26 disposed at the junction of the lower cavity 12 and the upper cavity 14 and used to separate the lower cavity 12 from the upper cavity 14. The pumping assembly 2 also includes a pressing head 21 disposed on the top of the pump body 1 and capable of moving up and down, and a self-locking column 22 is disposed at the bottom of the pressing head 21. The interior of the self-locking column 22 is hollow, and a piston tube 23 is also disposed at the bottom of the self-locking column 22. The piston tube 23 extends into the spring seat 26 and can slide up and down in the spring seat 26. The pumping assembly 2 also includes a fully plastic spring 25 disposed above the spring seat 26, and the fully plastic spring 25 is sleeved on the outside of the piston tube 23. The top end of the fully plastic spring 25 abuts against the upper end of the piston tube 23, and the lower end of the fully plastic spring 25 abuts against the spring seat 26. The liquid pumping assembly 2 also includes a main column 24 movably arranged at the upper end of the piston tube 23, and the top of the main column 24 is expanded to form an inverted cone-shaped sealing block. The top of the piston tube 23 is enclosed to form a sealing groove that is compatible with the sealing block. The liquid pumping assembly 2 also includes a secondary tube arranged at the bottom of the piston tube 23, and the bottom of the main column 24 extends to the top of the interior of the secondary tube. The liquid pumping assembly 2 also includes a lower piston 27 connected to the bottom of the secondary tube, and the lower piston 27 is arranged at the bottom of the spring seat 26. The center of the lower piston 27 is also provided with a through groove connected to the secondary tube. The liquid pumping assembly 2 includes a flow channel 211 for liquid outflow provided in the pressing head 21, and the flow channel 211 is connected to the hollow structure in the self-locking column 22.

[0028] The user presses the push-button 21, which drives the self-locking column 22 and piston tube 23 downward. At this point, the all-plastic spring 25 is compressed, storing elastic potential energy. As the piston tube 23 moves downward, the lower piston 27 is fixed relative to the bottom of the spring seat 26, causing the volume of the lower chamber 12 to decrease and the pressure to increase. Simultaneously, the main column 24 moves upward relative to the piston tube 23, separating the inverted conical sealing block at the top of the main column 24 from the sealing groove at the top of the piston tube 23. Under pressure, the liquid in the lower chamber 12 flows through the through-slot in the center of the lower piston 27, into the secondary tube, then into the piston tube 23, and out through the hollow structure of the self-locking column 22 and the flow channel 211 in the push-button 21. When the user releases the push-button 21, the all-plastic spring 25 releases its elastic potential energy, pushing the piston tube 23 upward to reset. As the piston tube 23 moves upward, the volume of the lower chamber 12 increases, drawing the liquid from the bottle into the lower chamber 12, preparing for the next pumping cycle.

[0029] The pump body 1 includes an outer cover 3 sleeved on the top position of the pump body 1, a locking cover body 5 is also provided on the inner side of the outer cover 3, and a locking cover cap 4 is also provided on the top of the locking cover body 5. The inner wall of the outer cover 3 is provided with screw threads 31 that engage with the thread of the bottle. A gasket 6 is also provided at the junction of the outer cover 3 and the pump body 1. The locking cover body 5 is sleeved on the outside of the self-locking column 22, and the self-locking column 22 can slide up and down in the locking cover body 5.

[0030] The user installs the lotion pump onto the bottle by engaging the threads 31 on the inner wall of the outer cap 3 with the threads of the bottle. During the installation process, the gasket 6 is compressed between the outer cap 3 and the pump body 1, providing a seal to prevent liquid leakage after installation.

[0031] A liquid pushing component 7 is also provided inside the liquid outlet of the flow channel 211. The liquid pushing component 7 includes a sleeve 72 inserted into the flow channel 211, and a support member 71 is provided at the front of the sleeve 72. A groove for liquid outflow is also provided on the support member 71. A through hole is also provided in the sleeve 72. A movable liquid pushing plug 73 is also provided in the sleeve 72. One end of the liquid pushing plug 73 can block the through hole in the sleeve 72. A liquid pushing spring 74 for resetting the liquid pushing plug 73 is also provided between the support member 71 and the liquid pushing plug 73. The liquid pushing spring 74 is made of plastic.

[0032] When the user presses the pressing head 21, the liquid enters the sleeve 72 from the inside of the pump body 1 through the flow channel 211. Under the action of the liquid pressure, the liquid pushing plug 73 is pushed, overcoming the elastic force of the liquid pushing spring 74 and moving in the direction away from the support 71. At this time, the through hole in the sleeve 72 opens. The liquid passes through the through hole in the sleeve 72, and then flows out of the liquid outlet of the flow channel 211 through the groove on the support 71, thereby realizing the discharge of the liquid. When the user releases the pressing head 21, the liquid pressure disappears, and the liquid pushing spring 74 releases the stored elastic potential energy, pushing the liquid pushing plug 73 to move in the direction close to the support 71. After the liquid pushing plug 73 moves to a certain position, one end of it blocks the through hole in the sleeve 72, preventing the liquid from continuing to flow out, thereby solving the problem of the liquid in the flow channel 211 flowing out and causing the discharge port to be clogged with paste when not in use.

[0033] The above embodiments merely represent one or several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An environmentally friendly and easily recyclable all-plastic lotion pump, characterized by: include: A pump body (1) is detachably connected to the bottle mouth; a liquid pumping assembly (2) is arranged on the pump body (1) and is used to pump the liquid in the bottle to the outside; the liquid pumping assembly (2) also includes a pressing head (21) arranged on the top of the pump body (1) and capable of moving up and down, and the liquid pumping assembly (2) also includes a flow channel (211) for liquid outflow provided in the pressing head (21), the flow channel (211) is communicated with the hollow structure in the self-locking column (22), and a liquid pushing assembly (7) is further provided inside the liquid outlet of the flow channel (211), and the liquid pushing assembly The component (7) includes a sleeve (72) inserted into the flow channel (211), and a support member (71) is provided at the front of the sleeve (72), a groove for liquid outflow is provided on the support member (71), a through hole is provided in the sleeve (72), and a movable liquid pushing plug (73) is provided in the sleeve (72), one end of the liquid pushing plug (73) can block the through hole in the sleeve (72), and a liquid pushing spring (74) for resetting the liquid pushing plug (73) is provided between the support member (71) and the liquid pushing plug (73).

2. The environmentally friendly and easily recyclable all-plastic lotion pump according to claim 1, characterized in that: The push-fluid spring (74) is made of plastic.

3. The environmentally friendly and easily recyclable all-plastic lotion pump according to claim 1, characterized in that: The pump body (1) comprises a pipe interface (11) capable of penetrating into the bottle and used for connecting a pipe. A lower cavity (12) and an upper cavity (14) are sequentially arranged inside the pump body (1) from bottom to top. A reflux valve (13) is also arranged between the pipe interface (11) and the lower cavity (12) to prevent liquid in the lower cavity (12) from flowing back into the bottle. When the liquid pumping component (2) is pressed, the reflux valve (13) is closed, and the liquid in the lower cavity (12) is pumped out by the liquid pumping component (2). When the liquid pumping component (2) is reset, the reflux valve (13) is opened, and the liquid in the bottle enters the lower cavity (12).

4. The environmentally friendly and easily recyclable all-plastic lotion pump according to claim 3, characterized in that: The reflux valve (13) is an elastic diaphragm, the bottom of the center position of the elastic diaphragm extends to the intersection of the lower cavity (12) and the pipeline interface (11), and the reflux valve (13) is also provided with a groove for liquid to pass through.

5. The environmentally friendly and easily recyclable all-plastic lotion pump according to claim 3, characterized in that: The liquid pumping assembly (2) comprises a spring seat (26) arranged at the junction of the lower cavity (12) and the upper cavity (14) and used to separate the lower cavity (12) from the upper cavity (14).

6. The environmentally friendly and easily recyclable all-plastic lotion pump according to claim 5, characterized in that: A self-locking column (22) is provided at the bottom of the pressing head (21), and the interior of the self-locking column (22) is hollow. A piston tube (23) is also provided at the bottom of the self-locking column (22), and the piston tube (23) extends into the spring seat (26) and can slide up and down in the spring seat (26).

7. The environmentally friendly and easily recyclable all-plastic lotion pump according to claim 6, characterized in that: The liquid pumping assembly (2) further comprises a fully plastic spring (25) arranged above the spring seat (26), and the fully plastic spring (25) is sleeved on the outside of the piston tube (23), the top end of the fully plastic spring (25) abuts against the upper end of the piston tube (23), and the lower end of the fully plastic spring (25) abuts against the spring seat (26).

8. The environmentally friendly and easily recyclable all-plastic lotion pump according to claim 7, characterized in that: The pumping assembly (2) further comprises a main column (24) movably arranged at the upper end of the interior of the piston tube (23), and the top end of the main column (24) is expanded outward to form an inverted conical sealing block, and the top end of the piston tube (23) is enclosed outward to form a sealing groove adapted to the sealing block. The pumping assembly (2) further comprises a secondary tube arranged at the bottom of the piston tube (23), and the bottom end of the main column (24) extends to the upper part of the interior of the secondary tube.

9. The environmentally friendly and easily recyclable all-plastic lotion pump according to claim 7, characterized in that: The pumping assembly (2) further comprises a lower piston (27) connected to the bottom of the auxiliary pipe, and the lower piston (27) is arranged at the bottom of the spring seat (26), and a through groove communicating with the auxiliary pipe is also provided at the center of the lower piston (27).

10. The environmentally friendly and easily recyclable all-plastic lotion pump according to claim 4, characterized in that: The pump body (1) includes an outer cover (3) sleeved on the top of the pump body (1), a locking cover body (5) is further provided on the inner side of the outer cover (3), a locking cover cap (4) is further provided on the top of the locking cover body (5), a screw thread (31) engaged with the thread of the bottle is provided on the inner wall of the outer cover (3), a gasket (6) is further provided at the junction of the outer cover (3) and the pump body (1), the locking cover body (5) is sleeved on the outside of the self-locking column (22), and the self-locking column (22) can slide up and down in the locking cover body (5).

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