A pump head with an extremely simple structure

Abstract

This invention discloses a pump head with an extremely simple structure, including a cover installed at the container opening, a liquid outlet pump head that is slidably installed inside the cover, and an inlet pipe installed inside the liquid outlet pump head. The lower end of the inlet pipe abuts against the bottom of the container. When the liquid outlet pump head is pressed, the inlet pipe deforms to generate an elastic force for the liquid outlet pump head to move upward and reset. Without pump chambers, springs, or other structures, it can greatly simplify the product structure, reduce the difficulty of production, improve production efficiency, and also reduce production costs.

Description

Technical Field

[0001] This invention relates to a packaging container, and more particularly to a pump head with an extremely simple structure. Background Technology

[0002] Existing pump heads typically consist of more than a dozen components, including the pump chamber, pump head, spring, and check valve. These components are numerous, costly, complex, and difficult to assemble. Furthermore, some of these components are metal, which is prone to rusting and contaminating the emulsion when immersed in the contents of the bottle for extended periods. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention provides a pump head with an extremely simple structure.

[0004] The technical solution adopted by this invention to solve its technical problem is: A pump head with a minimalist structure includes a cover installed at the opening of a container, a liquid outlet pump head that is slidably and sealed inside the cover, an inlet pipe installed inside the liquid outlet pump head, the lower end of the inlet pipe abutting against the bottom of the container, and when the liquid outlet pump head is pressed, the inlet pipe deforms to generate an elastic force for the liquid outlet pump head to move upward and return to its original position.

[0005] A pump head with a minimalist structure is disclosed, comprising a cover, an outlet pump head, and an inlet pipe. The outlet pump head is slidably and sealed within the cover, and the inlet pipe is installed inside the outlet pump head. The lower end of the inlet pipe abuts against the bottom of the container. When the outlet pump head is pressed, the inlet pipe deforms to generate a spring force for the outlet pump head to move upward and return to its original position.

[0006] An air-replenishing structure is provided between the cover and the container opening.

[0007] The air replenishment structure includes an air replenishment ring disposed within the cover body, the outer side of which abuts against the inner wall of the container opening.

[0008] The air replenishment ring has a trapezoidal structure with a diameter that gradually increases from top to bottom.

[0009] The cover has several protruding structures arranged in a ring on the top of the inner wall of the cover and the inner side of the diameter of the air replenishment ring, and an air intake gap is formed between two adjacent protruding structures.

[0010] The inner ring of the cover is provided with a sealing ring, which abuts against the outer wall of the liquid outlet pump head.

[0011] A one-way valve is installed in the outlet pump head or the inlet pipe.

[0012] The inlet pipe may be a straight pipe or a non-straight pipe.

[0013] The lower end of the inlet pipe is not flat.

[0014] The lower end of the inlet pipe is flat, and the side wall of the inlet pipe is provided with an inlet.

[0015] The liquid outlet pump head is provided with a liquid outlet and a connecting pipe communicating with the liquid outlet, and the upper end of the liquid inlet pipe is inserted into the connecting pipe.

[0016] The side wall of the connecting pipe is provided with a first liquid outlet window that connects the connecting pipe to the liquid outlet. The upper end of the inlet pipe is provided with a second liquid outlet window corresponding to the first liquid outlet window. When the liquid outlet pump head is pressed, the first liquid outlet window and the second liquid outlet window are aligned, thus connecting the entire liquid outlet channel.

[0017] The outer wall of the connecting pipe is provided with a beveled structure. When the liquid outlet pump head is pressed, the liquid inlet pipe moves along the beveled structure and deforms. When the liquid outlet pump head is released, the liquid inlet pipe resets along the beveled structure, restoring the first liquid outlet window and the second liquid outlet window to their misaligned state.

[0018] The upper end of the inlet pipe is provided with a thin film for covering or revealing the second outlet window.

[0019] A movable ball is installed inside the connecting tube.

[0020] The lid body is provided with a connection structure that is fixedly connected to the container opening.

[0021] The cover body is provided with a liquid storage chamber, the liquid outlet pump head is provided with a liquid outlet pipe, the one-way valve is installed at the lower end of the liquid outlet pipe, the upper end of the liquid inlet pipe abuts against the bottom of the one-way valve, the one-way valve is provided with a third liquid outlet window, the liquid outlet pipe is provided with a fourth liquid outlet window corresponding to the third liquid outlet window, the outer side of the one-way valve is provided with a slope, and the lower end of the liquid outlet pipe is provided with a second spring plate corresponding to the slope.

[0022] The beneficial effects of this invention are: the invention has a liquid dispensing pump head that is sealed and slidably installed inside the lid, and an inlet pipe is installed inside the liquid dispensing pump head. The lower end of the inlet pipe abuts against the bottom of the container. When the liquid dispensing pump head is pressed, the inlet pipe deforms to generate an elastic force for the liquid dispensing pump head to move up and reset. There are no pump chambers, springs and other structures, which can greatly simplify the structure of the product, reduce the difficulty of production, improve the efficiency of production, and also reduce the production cost. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is one of the structural schematic diagrams of the present invention; Figure 2 yes Figure 1 Enlarged view of A in the middle; Figure 3 This is the second structural schematic diagram of the present invention; Figure 4 This is the third structural schematic diagram of the present invention; Figure 5 This is the fourth structural schematic diagram of the present invention; Figure 6 This is one of the structural diagrams of the connection between the liquid outlet pump head and the liquid inlet pipe (in the unpressed state); Figure 7 This is the second structural diagram of the connection between the liquid outlet pump head and the liquid inlet pipe (pressed state). Figure 8 This is the third structural diagram of the connection between the liquid outlet pump head and the liquid inlet pipe; Figure 9 This is the fourth structural diagram of the connection between the liquid outlet pump head and the liquid inlet pipe; Figure 10 This is a structural diagram of a one-way valve. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 described herein can be combined with each other.

[0026] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0027] The following describes some embodiments of the present invention with reference to the accompanying drawings.

[0028] Reference Figure 1-10 A pump head with a minimalist structure includes a cover 1 installed at the container opening, a liquid outlet pump head 2 that is slidably installed inside the cover 1, an inlet pipe 3 installed inside the liquid outlet pump head 2, the lower end of the inlet pipe 3 abutting against the bottom of the container, and when the liquid outlet pump head 2 is pressed, the inlet pipe 3 deforms to generate a spring force for the liquid outlet pump head 2 to move upward and reset.

[0029] A pump head with a minimalist structure is disclosed, comprising a cover 1, an outlet pump head 2, and an inlet pipe 3. The outlet pump head 2 is slidably and sealed within the cover 1, and the inlet pipe 3 is installed within the outlet pump head 2. The lower end of the inlet pipe 3 abuts against the bottom of the container. When the outlet pump head 2 is pressed, the inlet pipe 3 deforms, generating a spring force for the outlet pump head 2 to move upward and reset.

[0030] To ensure the deformation effect of the liquid inlet pipe 3, it can be configured such that after assembly, the liquid inlet pipe 3 is in a slightly deformed state and has a certain elasticity. Without pump chambers, springs, or other structures, it can greatly simplify the product structure, reduce the difficulty of production, improve production efficiency, and also reduce production costs.

[0031] An air-replenishing structure is provided between the cover 1 and the container opening (the air-replenishing structure can also be separately provided on the liquid outlet pump head 2 and the cover 1, as long as the air-replenishing effect is achieved). The air-replenishing structure includes an air-replenishing ring 4 provided inside the cover 1. The outer side of the air-replenishing ring 4 abuts against the inner wall of the container opening. The air-replenishing ring 4 has a trapezoidal structure with a diameter that gradually increases from top to bottom. Several protrusions 5 arranged in a ring are provided on the inner wall of the cover 1 and the top of the inner side of the diameter of the air-replenishing ring 4. An air inlet is formed between two adjacent protrusions 5 (the air-replenishing structure can also adopt other conventional structures, such as gaskets, air-replenishing one-way valves, etc.). A single air inlet is provided inside the liquid outlet pump head 2 or the liquid inlet pipe 3. The check valve 7 (which can be an integral part of the dispensing pump head 2 or the inlet pipe 3, or a separately installed one-way valve) reduces the space inside the bottle and increases the air pressure when the dispensing pump head 2 is pressed. This causes the air replenishment ring 4 to be further squeezed towards the inner wall of the container opening, thereby improving the sealing effect. At the same time, the contents of the bottle are discharged from the dispensing pump head 2 through the inlet pipe 3. When the dispensing pump head 2 is released, due to the presence of the one-way valve 7, external air cannot enter the bottle through the dispensing pump head 2 and the inlet pipe 3. Instead, it enters through the gap between the cap 1 and the container opening and the air inlet. This will open the air replenishment gap between the air replenishment ring 4 and the container opening, allowing air to enter the bottle and complete the air replenishment.

[0032] refer to Figure 10 The cover 1 is provided with a liquid storage chamber 19, the liquid outlet pump head 2 is provided with a liquid outlet pipe 21, the one-way valve 7 is installed at the lower end of the liquid outlet pipe 21, the upper end of the liquid inlet pipe 3 abuts against the bottom of the one-way valve 7, the one-way valve 7 is provided with a third liquid outlet window 20, the liquid outlet pipe 21 is provided with a fourth liquid outlet window 22 corresponding to the third liquid outlet window 20, the one-way valve 7 is provided with a slope 23 on the outside, and the lower end of the liquid outlet pipe 21 is provided with a second spring piece 24 corresponding to the slope 23.

[0033] Initially, the inlet pipe 3 is compressed, and the one-way valve 7 is integrally formed at the bottom of the liquid storage chamber 19, connected by a thin sheet and several arranged connection points. Pressing the outlet pump head 2 causes the lower end of the outlet pipe 21 to be inserted into the outside of the one-way valve 7. Further pressing of the outlet pump head 2 causes the second spring sheet 24 to expand along the inclined surface 23, deforming it. The third outlet window 20 aligns with the fourth outlet window 22, simultaneously pushing the connection point between the one-way valve 7 and the liquid storage chamber 19 to complete breakage. The one-way valve 7 is further pressed down by the outlet pump head 2, further compressing the inlet pipe 3, and the liquid storage chamber... Air inside the reservoir 19 is discharged from the liquid outlet pump head 2 through the third liquid outlet window 20 and the fourth liquid outlet window 22. When the liquid outlet pump head 2 is released, the second spring 24 resets, the third liquid outlet window 20 and the fourth liquid outlet window 22 are misaligned, the liquid inlet pipe 3 is restored, and the one-way valve 7 and the liquid outlet pump head 2 are pushed to reset (when the liquid outlet pump head 2 is fully reset, the upper end of the liquid inlet pipe 3 still abuts against the bottom surface of the one-way valve 7 and still has a pushing force, ensuring that the pushing force applied to the liquid outlet pump head 2 is relatively stable). A negative pressure is formed in the liquid storage chamber 19, drawing the contents of the bottle into the liquid storage chamber 19. When pressed again, the liquid can be dispensed normally.

[0034] The inner ring of the cover 1 is provided with a sealing ring 6, which abuts against the outer wall of the liquid dispensing pump head 2. Its function is to seal the installation gap between the cover 1 and the liquid dispensing pump head 2, so as to prevent gas from entering or leaving through the installation gap when the liquid dispensing pump head 2 is pressed or released, thereby affecting the liquid dispensing effect.

[0035] A limiting part 14 is provided inside the cover 1, and a limiting ring 15 is provided on the outer side of the lower end of the liquid outlet pump head 2 to prevent the liquid outlet pump head 2 from falling off the cover 1.

[0036] The inlet pipe 3 is a straight pipe (e.g., ...). Figure 1 , 5 (as shown) or non-straight pipes (such as bellows, spiral pipes, etc., such as...) Figure 3 , 4 As shown, compared to a straight pipe, it can improve the elastic effect generated by deformation.

[0037] The lower end of the inlet pipe 3 is not flat (e.g., a pointed end, etc.). Figure 1 (As shown).

[0038] The lower end of the inlet pipe 3 is flat, and the side wall of the inlet pipe 3 is provided with an inlet port 8 (e.g., Figure 5 (As shown).

[0039] refer to Figure 6-9The liquid outlet pump head 2 is provided with a liquid outlet 9 and a connecting pipe 10 communicating with the liquid outlet 9, and the upper end of the liquid inlet pipe 3 is inserted into the connecting pipe 10.

[0040] The side wall of the connecting pipe 10 is provided with a first liquid outlet window 11 that connects the connecting pipe 10 to the liquid outlet 9. The upper end of the inlet pipe 3 is provided with a second liquid outlet window 12 corresponding to the first liquid outlet window 11. When the liquid outlet pump head 2 is pressed, the first liquid outlet window 11 and the second liquid outlet window 12 are aligned, connecting the entire liquid outlet channel. When not pressed, the first liquid outlet window 11 and the second liquid outlet window 12 are staggered to ensure sealing and prevent external gas from entering. This structure can be used in place of a one-way valve.

[0041] The outer wall of the connecting pipe 10 is provided with a sloped structure 13 (the sloped structure 13 can be set at any position on the outer wall of the connecting pipe 10, and can be a single one, or multiple ones symmetrically or evenly distributed on the outer wall of the connecting pipe 10, so as to better maintain balance). When the liquid outlet pump head 2 is pressed, the liquid inlet pipe 3 moves along the sloped structure 13 and deforms (the deformation position can be cut to form a first spring piece 16 connected to the lower end of the liquid inlet pipe 3). When the liquid outlet pump head 2 is released, the liquid inlet pipe 3 resets along the sloped structure 13, restoring the first liquid outlet window 11 and the second liquid outlet window 12 to the misaligned state.

[0042] The upper end of the inlet pipe 3 is provided with a thin film 17 for covering or exposing the second outlet window 12. When the outlet pump head 2 is pressed, after the first outlet window 11 and the second outlet window 12 are aligned, the thin film 17 will cover the second outlet window 12. When the contents of the bottle are discharged, the thin film 17 will be pushed open (e.g., Figure 8 As shown, when the liquid outlet pump head 2 is released, the membrane 17 will cover the second liquid outlet window 12 again according to its own restoring elasticity or gravity, which can better ensure that the second liquid outlet window 12 is immediately blocked and sealed, and the bottle can only be replenished with gas from the gas replenishment channel, and cannot be drawn back through the liquid outlet pump head 2.

[0043] The connecting pipe 10 is equipped with a movable ball 18, which has the same function as the diaphragm 17, that is, the function of the one-way valve 7.

[0044] This product can be applied to various types of bottles, such as glass bottles, plastic bottles, and soft bags. It only needs to meet the requirement that pressing the liquid dispensing pump head 2 causes the inlet tube 3 to deform, generating an elastic force for the liquid dispensing pump head 2 to move upward and reset. When using soft bottles such as soft bags, the lower end of the inlet tube 3 can be fixed to the soft bag (without blocking the liquid inlet of the inlet tube 3), thereby ensuring that the inlet tube 3 can produce a deformation effect.

[0045] The cover 1 is provided with a connection structure that is fixedly connected to the container opening. The connection structure is a threaded structure or another type of conventional detachable connection structure.

[0046] In this invention, the term "a plurality of" refers to two or more unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "installation," "connection," "linking," "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 via an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] 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.

[0048] 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.

[0049] Although embodiments of the 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 invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pump head with a very simple structure, comprising a cover (1) installed at the container opening, characterized in that... The cover (1) is sealed and slidably installed with a liquid outlet pump head (2). The liquid outlet pump head (2) is installed with a liquid inlet pipe (3). The lower end of the liquid inlet pipe (3) abuts against the bottom of the container. When the liquid outlet pump head (2) is pressed, the liquid inlet pipe (3) deforms and generates an elastic force for the liquid outlet pump head (2) to move upward and reset.

2. A pump head with an extremely simple structure, characterized in that... The pump head consists of three parts: a cover (1), an outlet pump head (2), and an inlet pipe (3). The outlet pump head (2) is sealed and slidably installed inside the cover (1). The inlet pipe (3) is installed inside the outlet pump head (2). The lower end of the inlet pipe (3) abuts against the bottom of the container. When the outlet pump head (2) is pressed, the inlet pipe (3) deforms and generates a spring force for the outlet pump head (2) to move upward and reset.

3. The pump head with a minimally shaped structure according to claim 1 or 2, characterized in that... An air-replenishing structure is provided between the cover (1) and the container opening.

4. The pump head with a minimalist structure according to claim 3, characterized in that... The air replenishment structure includes an air replenishment ring (4) disposed inside the cover (1), and the outer side of the air replenishment ring (4) abuts against the inner wall of the container opening.

5. The pump head with a minimally shaped structure according to claim 4, characterized in that... The air replenishment ring (4) has a trapezoidal structure with a diameter that gradually increases from top to bottom.

6. The pump head with a minimalist structure according to claim 4, characterized in that... The cover (1) has several protruding structures (5) arranged in a ring on the top of the inner wall of the cover (1) and the inner side of the diameter of the air replenishment ring (4), and an air intake gap is formed between two adjacent protruding structures (5).

7. The pump head with a minimally shaped structure according to claim 1 or 2, characterized in that... The inner ring of the cover (1) is provided with a sealing ring (6), which abuts against the outer wall of the liquid outlet pump head (2).

8. The pump head with a minimally shaped structure according to claim 1 or 2, characterized in that... A one-way valve (7) is provided inside the liquid outlet pump head (2) or the liquid inlet pipe (3).

9. The pump head with a minimally shaped structure according to claim 1 or 2, characterized in that... The inlet pipe (3) can be a straight pipe or a non-straight pipe.

10. The pump head with a minimally shaped structure according to claim 1 or 2, characterized in that... The lower end of the liquid inlet pipe (3) is not flat.

11. The pump head with a minimally shaped structure according to claim 1 or 2, characterized in that... The lower end of the inlet pipe (3) is flat, and the side wall of the inlet pipe (3) is provided with an inlet (8).

12. The pump head with a minimally shaped structure according to claim 1 or 2, characterized in that... The liquid outlet pump head (2) is provided with a liquid outlet (9) and a connecting pipe (10) communicating with the liquid outlet (9), and the upper end of the liquid inlet pipe (3) is inserted into the connecting pipe (10).

13. The pump head with a minimalist structure according to claim 12, characterized in that... The side wall of the connecting pipe (10) is provided with a first liquid outlet window (11) that connects the connecting pipe (10) to the liquid outlet (9). The upper end of the inlet pipe (3) is provided with a second liquid outlet window (12) corresponding to the first liquid outlet window (11). When the liquid outlet pump head (2) is pressed, the first liquid outlet window (11) and the second liquid outlet window (12) are aligned, and the entire liquid outlet channel is connected.

14. The pump head with a minimalist structure according to claim 13, characterized in that... The outer wall of the connecting pipe (10) is provided with a slope structure (13). When the liquid outlet pump head (2) is pressed, the liquid inlet pipe (3) moves along the slope structure (13) and deforms. When the liquid outlet pump head (2) is released, the liquid inlet pipe (3) resets along the slope structure (13) and restores the first liquid outlet window (11) and the second liquid outlet window (12) to the misaligned state.

15. The pump head with a minimalist structure according to claim 13, characterized in that... The upper end of the inlet pipe (3) is provided with a thin film (17) for covering or exposing the second outlet window (12).

16. The pump head with a minimalist structure according to claim 13, characterized in that... A movable ball (18) is installed inside the connecting tube (10).

17. The pump head with a minimally shaped structure according to claim 1 or 2, characterized in that... The cover (1) is provided with a connection structure that is fixedly connected to the container opening.

18. The pump head with a minimalist structure according to claim 8, characterized in that... The cover (1) is provided with a liquid storage chamber (19), the liquid outlet pump head (2) is provided with a liquid outlet pipe (21), the one-way valve (7) is installed at the lower end of the liquid outlet pipe (21), the upper end of the liquid inlet pipe (3) abuts against the bottom of the one-way valve (7), the one-way valve (7) is provided with a third liquid outlet window (20), the liquid outlet pipe (21) is provided with a fourth liquid outlet window (22) corresponding to the third liquid outlet window (20), the one-way valve (7) is provided with a slope (23) on the outside, and the lower end of the liquid outlet pipe (21) is provided with a second spring plate (24) corresponding to the slope (23).

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