Pressing pump head

Abstract

The utility model discloses a pressing pump head which comprises a cover body and a pressing piece, a liquid storage chamber is arranged in the cover body, the pressing piece is movably installed in the liquid storage chamber, a penetrating channel is arranged in the center of the liquid storage chamber, the pressing piece is provided with a liquid inlet pipe corresponding to the penetrating channel, an annular groove is formed in the lower end of the liquid inlet pipe, and a liquid inlet is formed in the lower end of the annular groove. A piston capable of plugging or exposing the liquid inlet in a sliding mode is arranged on the liquid inlet pipe and located in the annular groove, through vertical sliding of the piston, liquid can play a role of a one-way valve when flowing from the liquid inlet, and the piston serves as a part of the one-way valve, so that the structure of the pump head is optimized, mold manufacturing and part machining in the production process are facilitated, and production efficiency is improved. And meanwhile, the assembly is convenient, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to a liquid dispensing device, and more particularly to a press pump head. Background Technology

[0002] Existing pump heads generally include a pump chamber, a pressing element, and an inlet pipe. By pressing the pump head, the liquid in the bottle enters the pump chamber. Pressing it again causes the liquid in the pump chamber to be discharged through the pressing element. To complete this process, a one-way valve and a piston structure are generally required. The one-way valve prevents liquid backflow, and the piston structure seals the gap between the pump chamber and the pressing element to prevent liquid from entering the gap and affecting the final dispensing effect.

[0003] In current pump heads, when the liquid in the bottle enters the pump chamber, it passes through a one-way valve. When the liquid in the pump chamber is discharged through the pressing component, it passes through a second one-way valve. In this structure, the piston structure and the one-way valve are independent of each other, making the structure relatively complex. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a press pump head.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A press pump head includes a cover and a pressing component. The cover has a liquid storage chamber, and the pressing component is movably installed in the liquid storage chamber. A through-channel is provided in the center of the liquid storage chamber. The pressing component has an inlet pipe corresponding to the through-channel. An annular groove is provided at the lower end of the inlet pipe, and an inlet is provided at the lower end of the annular groove. A piston is provided on the inlet pipe within the annular groove, which can slide to block or expose the inlet.

[0007] An integrally formed pusher component that can slide within the through-channel is provided in the pusher component, and a liquid inlet channel is provided within the pusher component.

[0008] The pusher is integrally formed with the through-channel through a thin sheet. When the pusher is pressed, the pusher pushes the thin sheet to break completely, and the pusher slides within the through-channel.

[0009] The upper end of the pusher is provided with an insertion part, and the lower end of the liquid inlet tube is provided with an insertion groove corresponding to the insertion part. When the presser is pressed, the insertion part is inserted into the insertion groove and the pusher is pushed to move. When the presser is released to reset, the pusher and the liquid inlet tube move upward synchronously.

[0010] It also includes a flexible inlet tube, the upper end of which abuts against the pusher and the lower end of which abuts against the bottom of the container, so that the flexible inlet tube is always in a compressed state.

[0011] The cover body is provided with a connecting part, and the liquid storage chamber is connected to the cover body through the connecting part.

[0012] A guide groove is formed between the connecting part and the liquid storage chamber, and the pressing member is provided with a guide part corresponding to the guide groove, and the guide part is slidably installed in the guide groove.

[0013] The beneficial effects of this utility model are as follows: This utility model includes a cover and a pressing component. A liquid storage chamber is provided inside the cover. The pressing component is movably installed in the liquid storage chamber. A through-channel is provided in the center of the liquid storage chamber. An inlet pipe is provided on the pressing component corresponding to the through-channel. An annular groove is provided at the lower end of the inlet pipe. An inlet is provided at the lower end of the annular groove. A piston is provided on the inlet pipe within the annular groove, which can slide to block or expose the inlet. By sliding the piston up and down, it acts as a one-way valve when the liquid flows from the inlet. By using the piston as part of the one-way valve, the structure of the pump head is optimized, which is beneficial to mold manufacturing and parts processing in the production process. It is also easy to assemble, improve production efficiency, and reduce production costs. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is one of the schematic diagrams of this utility model;

[0016] Figure 2 This is the second schematic diagram of this utility model;

[0017] Figure 3 This is the third schematic diagram of this utility model. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0019] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0020] The following describes some embodiments of the present invention with reference to the accompanying drawings.

[0021] Reference Figure 1-3A press pump head includes a cover 1 and a press component 2. The cover 1 has a liquid storage chamber 3, and the press component 2 is movably installed in the liquid storage chamber 3. The center of the liquid storage chamber 3 has a through channel 4. The press component 2 has an inlet pipe 5 corresponding to the through channel 4. The lower end of the inlet pipe 5 has an annular groove 6, and the lower end of the annular groove 6 has an inlet port 7. A piston 8 is provided on the inlet pipe 5 within the annular groove 6, which can slide to block or expose the inlet port 7. By sliding the piston 8 up and down, it acts as a one-way valve when liquid flows from the inlet port 7. By incorporating the piston 8 as part of the one-way valve, the structure of the pump head is optimized, which is beneficial for mold manufacturing and parts processing in the production process. It also facilitates assembly, improves production efficiency, and reduces production costs.

[0022] The width of the annular groove 6 is greater than the thickness of the piston 8. When the piston 8 is located in the upper part of the annular groove 6, the liquid inlet 7 is exposed, and when the piston 8 is located in the lower part of the annular groove 6, the liquid inlet 7 is blocked.

[0023] An integrally formed pusher 9, which can slide within the through-channel 4, is provided within the pusher 9, which has a liquid inlet channel 10. The pusher 9 is integrally formed with the through-channel 4 via a thin sheet 11. When the pressing member 2 is pressed, the pressing member 2 pushes the pusher 9, causing the thin sheet 11 to break completely, and the pusher 9 slides within the through-channel 4. An insertion part 12 is provided at the upper end of the pusher 9, and an insertion groove 13 is provided at the lower end of the liquid inlet pipe 5 corresponding to the insertion part 12. When the pressing member 2 is pressed, the insertion part 12 is inserted into the insertion groove 13, and pushes the pusher 9 to move. When the pressing member 2 is released to reset, the pusher 9 and the liquid inlet pipe 5 move upward synchronously. The system also includes an elastic liquid inlet pipe 14, the upper end of which abuts against the pusher 9, and the lower end of which abuts against the bottom of the container, so that the elastic liquid inlet pipe 14 is always in a compressed state.

[0024] In its initial state, the pusher 9 is connected to the through-channel 4 via the thin sheet 11, that is, connected to the cover 1 (see reference). Figure 1(This product is in an unused state). Pressing the pressing member 2 causes the inlet pipe 5 to move downwards simultaneously (because the friction between the piston 8 and the reservoir 3 is greater than the friction between the piston 8 and the annular groove 6, the piston 8 does not move temporarily). The piston 8 moves relative to the annular groove 6, exposing the inlet port 7. When the upper sidewall of the annular groove 6 abuts against the piston 8, it pushes the piston 8 downwards, causing the air in the reservoir 3 (or container) to be discharged from the pressing member 2 through the inlet port 7 and the inlet pipe 5. When the inlet pipe 5 abuts against the pushing member 9, the thin sheet 11 is completely pushed out (the thin sheet 11 can be replaced by several arranged connection points, etc.). The pushing member 9 moves downwards, pushing the elastic inlet pipe 14 to be further compressed (see reference). Figure 2 When the product is fully pressed to its limit, releasing the pressing element 2 causes the elastic inlet tube 14 to extend. Through the pushing element 9, the pressing element 2 is pushed back to its original position, and the inlet tube 5 moves upwards simultaneously (again, due to friction, the piston 8 does not move temporarily). When the lower sidewall of the annular groove 6 abuts against the piston 8, it pushes the piston 8 upwards. At this point, the piston 8 has blocked the inlet 7, creating a negative pressure in the storage chamber 3. This draws the contents of the container into the storage chamber 3 through the elastic inlet tube 14. During this process, the pushing element 9 moves upwards synchronously with the inlet tube 5. During the extension of the elastic inlet tube 14, it remains in contact with the pushing element 9, providing thrust for the repositioning of the pressing element 2 (see reference). Figure 3 (In the state after the product is reset), when the pressing member 2 is pressed again, the piston 8 slides, exposing the liquid inlet 7, and the contents of the liquid storage chamber 3 can be discharged through the pressing member 2.

[0025] A connecting portion 15 is provided inside the cover 1, and the liquid storage chamber 3 is connected to the cover 1 through the connecting portion 15. A guide groove 16 is formed between the connecting portion 15 and the liquid storage chamber 3. The pressing member 2 is provided with a guide portion 17 corresponding to the guide groove 16. The guide portion 17 is slidably installed in the guide groove 16. The connecting portion 15 can be a completely closed structure. When the pressing member 2 is pressed, the air inside the connecting portion 15 and the liquid storage chamber 3 is discharged (the air replenishment structure and principle adopt existing technology and will not be described in detail). The connecting portion 15 can also be provided with several parts. The perforated structure allows the interior of the container to communicate with the liquid storage chamber 3. When the pressing element 2 is pressed, the air inside the liquid storage chamber 3 is expelled, which also expels the air from the container (this is the initial state of use, i.e., when the liquid storage chamber 3 is empty). During subsequent normal use, the liquid storage chamber 3 always contains contents (each time the pressing element 2 is released, the contents of the container are drawn into the liquid storage chamber 3). Since the liquid inlet pipe 5 is located inside the liquid storage chamber 3 and is immersed in the contents, pressing the pressing element 2 will first expel the contents.

[0026] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A press pump head, comprising a cover (1) and a press member (2), wherein a liquid storage chamber (3) is provided inside the cover (1), and the press member (2) is movably installed inside the liquid storage chamber (3), characterized in that... The center of the liquid storage chamber (3) is provided with a through channel (4), and the pressing member (2) is provided with an inlet pipe (5) corresponding to the through channel (4). The lower end of the inlet pipe (5) is provided with an annular groove (6), and the lower end of the annular groove (6) is provided with an inlet port (7). A piston (8) is provided on the inlet pipe (5) located in the annular groove (6) to slidably block or expose the inlet port (7).

2. The press pump head according to claim 1, characterized in that... The through-channel (4) is integrally formed with a pusher (9) that can slide within the through-channel (4), and the pusher (9) is provided with a liquid inlet channel (10).

3. The press pump head according to claim 2, characterized in that... The pusher (9) is integrally formed with the through channel (4) through a thin sheet (11). Pressing the pressing member (2) pushes the pusher (9) so that the thin sheet (11) breaks completely and the pusher (9) slides in the through channel (4).

4. The press pump head according to claim 3, characterized in that... The upper end of the pusher (9) is provided with an insertion part (12), and the lower end of the liquid inlet pipe (5) is provided with an insertion groove (13) corresponding to the insertion part (12). When the presser (2) is pressed, the insertion part (12) is inserted into the insertion groove (13) and the pusher (9) is pushed to move. When the presser (2) is released to reset, the pusher (9) and the liquid inlet pipe (5) move upward synchronously.

5. The press pump head according to claim 2, characterized in that... It also includes an elastic inlet tube (14), the upper end of which abuts against the pusher (9), and the lower end of which abuts against the bottom of the container, so that the elastic inlet tube (14) is always in a compressed state.

6. The press pump head according to claim 1, characterized in that... The cover (1) is provided with a connecting part (15), and the liquid storage chamber (3) is connected to the cover (1) through the connecting part (15).

7. The press pump head according to claim 6, characterized in that... A guide groove (16) is formed between the connecting part (15) and the liquid storage chamber (3). The pressing member (2) is provided with a guide part (17) corresponding to the guide groove (16). The guide part (17) is slidably installed in the guide groove (16).

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