All-plastic press pump

Abstract

The utility model relates to the field of press pump especially a kind of full plastic press pump.The full plastic press pump includes body and main column, the body is equipped with sliding cavity, the piston is sealingly and slidably connected in the sliding cavity, the main column is drivingly connected with piston;It further includes waterproof guide piece, the waterproof guide piece includes guide portion, the top of the guide portion is equipped with sealing cap, the sealing cap is sealingly installed on the main column upper port, the main column is inserted with guide portion through sealing cap, the guide groove is equipped on the guide portion, the guide block is equipped on the outer wall of the main column, the guide block is slidably matched with guide groove, so that the full plastic press pump has locking and unlocking state.The full plastic press pump is waterproof and prevents liquid leakage, structure is simplified, and it is favorable to improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of push pumps, and in particular to an all-plastic push pump. Background Technology

[0002] Press pumps are widely used in daily chemical products. The waterproof sealing structure of press pumps is used to prevent external contaminants from entering the pump body and avoid contamination of the liquid inside the bottle.

[0003] For example, Chinese utility model patent CN217397126U discloses a press pump structure with a waterproof ring, including a pump body that extends into the bottle body, a pump chamber set on the pump body; an upper pump rod set in the pump chamber and having a suction channel, a locking cap sleeved on the upper end of the pump body, and a waterproof structure set between the upper pump rod and the locking cap, the waterproof structure being a waterproof ring sleeved on the upper pump rod, the upper end of the waterproof ring being interference-fitted with the upper pump rod.

[0004] In actual use, in addition to the waterproof structure, to prevent children from accidentally pressing the pump and causing danger to the solution, the pump will also be equipped with a pump head locking function, such as locking the pump head by using the threaded engagement between the pump rod and the pump body.

[0005] The problem with existing technology is that the waterproofing and locking structures of traditional push pumps are separated and located on different parts, resulting in complicated processes and hindering production efficiency; some push pumps also lack a locking function, making their functionality limited. Therefore, there is still room for improvement in existing technology. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a waterproof, pollution-proof, simple and stable all-plastic push pump.

[0007] The technical solution adopted by this utility model to solve the problem is: an all-plastic push pump, including a body and a main column, wherein a sliding cavity is provided in the body, and a piston is slidably connected in the sliding cavity, and the main column is drivenly connected to the piston;

[0008] It also includes a waterproof guide, which includes a guide portion and a sealing cap on the top of the guide portion. The guide portion is inserted into a sliding cavity, and the sealing cap is threaded to the upper port of the body. The main column passes through the sealing cap and is inserted into the guide portion. The sealing cap and the main column are sealed together.

[0009] The waterproof guide component has a guide groove inside, and the main column has a guide block on its outer wall. The guide block slides in conjunction with the guide groove.

[0010] The guide groove includes an arc-shaped groove and a vertical groove. The arc-shaped groove is arranged in a ring at the top of the guide part, and the vertical groove is arranged vertically on the inner wall of the guide part. One end of the arc-shaped groove is provided with an anti-rotation part, and the other end of the arc-shaped groove is connected to the vertical groove.

[0011] As a further improvement to the above technical solution, the sealing cap includes a cap body and a liquid-proof sealing ring. The cap body is integrally formed with the guide portion, and the liquid-proof sealing ring is sealed between the cap body and the main column. The liquid-proof sealing ring is interference-fitted with the cap body and the main column.

[0012] As a further improvement to the above technical solution, the all-plastic push pump has a locked state and an unlocked state;

[0013] In the locked state, the guide block rotates left and right along the arc groove, and the upper and lower sides of the guide block abut against the sealing cap and the guide part, respectively;

[0014] In the unlocked state, the guide block moves up and down within the vertical groove, and the main column and the waterproof guide are slidably connected up and down.

[0015] As a further improvement to the above technical solution, a secondary column is connected to the bottom of the main column, and a spring is elastically connected between the secondary column and the bottom plate of the main body. The spring is made of plastic or rubber, and the piston is linked between the main column and the secondary column.

[0016] The main body has an air inlet hole on its side wall. When the piston moves upward to its maximum distance, the top of the piston abuts against the bottom of the guide part, and the piston blocks the air inlet hole.

[0017] As a further improvement to the above technical solution, a pressing head is provided at the top of the main column, a liquid outlet channel is provided inside the main column, and a gap is provided between the piston and the main column and the auxiliary column. During the upward movement of the piston, the sliding cavity, the liquid outlet channel and the pressing head are connected in sequence.

[0018] As a further improvement to the above technical solution, a one-way valve is provided at the bottom of the main body, and a suction tube is inserted into the bottom of the one-way valve. The one-way valve controls the connection or disconnection between the suction tube and the sliding cavity.

[0019] The beneficial effects of this utility model are: the sealing cap of the waterproof guide component seals with the main column, preventing water leakage and avoiding contamination of the solution by external pollutants; while the guide part at the bottom of the sealing cap is provided with a guide groove, which slides with the guide block of the main column to realize the function of locking and unlocking the press pump. The waterproof guide component combines waterproof sealing and locking / unlocking functions, simplifies the parts arrangement inside the press pump, improves structural strength, and helps to improve production efficiency. Attached Figure Description

[0020] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention;

[0022] Figure 2 This is an exploded perspective view of the waterproof guide component of this utility model;

[0023] Figure 3 This is a sectional view of the waterproof guide component of this utility model;

[0024] Figure 4 This is a cross-sectional view of the present invention in its locked state;

[0025] Figure 5 This is a cross-sectional view of the present invention in its unlocked state.

[0026] In the diagram: 1-body, 11-sliding cavity, 12-air inlet, 13-guide block, 2-main column, 21-liquid outlet channel, 3-piston, 4-secondary column, 5-spring, 6-one-way valve, 7-pressing head, 8-waterproof guide, 81-sealing cap, 811-cap body, 812-liquid-proof sealing ring, 82-guide part, 821-arc groove, 822-vertical groove, 823-anti-rotation part. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Reference Figures 1 to 5A fully plastic push pump includes a body 1 and a main column 2. The body 1 is provided with a sliding cavity 11, and a piston 3 is slidably connected in the sliding cavity 11. The main column 2 is connected to the piston 3 in a transmission manner.

[0032] It also includes a waterproof guide 8, which includes a guide part 82. The top of the guide part 82 is provided with a sealing cap 81. The guide part 82 is inserted into the sliding cavity 11. The sealing cap 81 is threadedly connected to the upper port of the body 1. The main column 2 passes through the sealing cap 81 and is inserted into the guide part 82. The sealing cap 81 and the main column 2 are sealed together.

[0033] The waterproof guide component 8 has a guide groove inside, and the main column 2 has a guide block 13 on its outer wall. The guide block 13 slides in conjunction with the guide groove.

[0034] The guide groove includes an arc-shaped groove 821 and a vertical groove 822. The arc-shaped groove 821 is arranged in a ring at the top of the guide part 82, and the vertical groove 822 is arranged vertically on the inner wall of the guide part 82. One end of the arc-shaped groove 821 is provided with an anti-rotation part 823, and the other end of the arc-shaped groove 821 is connected to the vertical groove 822.

[0035] The sealing cap 81 seals the upper port of the body 1 to prevent contaminants from entering the pump body and to prevent the solution from leaking out from the gaps in the pump body. The guide part 82 at the bottom of the sealing cap 81 is used to lock and unlock the press pump. The waterproof guide 8 combines the locking cover, locking structure and waterproof structure of the traditional press pump, which simplifies the production and installation process, improves the structural strength of the parts and makes it convenient for users to use.

[0036] Preferably, the sealing cap 81 includes a cap body 811 and a liquid-proof sealing ring 812. The cap body 811 is integrally formed with the guide portion 82, and the liquid-proof sealing ring 812 is fitted between the cap body 811 and the main column 2. The liquid-proof sealing ring 812 is interference-fitted with the cap body 811 and the main column 2. The liquid-proof sealing ring 812 fills the installation gap between the cap body 811 and the main column 2, enhancing the sealing performance of the pump and facilitating disassembly and maintenance.

[0037] Reference Figure 4 and Figure 5 The all-plastic push pump has a locked state and an unlocked state;

[0038] In the locked state, the guide block 13 rotates left and right along the arc groove 821, and the upper and lower sides of the guide block 13 abut against the sealing cap 81 and the guide part 82, respectively.

[0039] In the unlocked state, the guide block 13 moves up and down within the vertical groove 822, and the main column 2 and the waterproof guide 8 slide up and down in a sliding connection.

[0040] Reference Figure 4When it is necessary to lock the pump, the main column 2 is rotated to the left or right using the pressing head 7. The guide block 13 rotates along the arc groove 821 and is stuck between the guide part 82 and the sealing cap 81, and cannot move up or down. At this time, the pressing head 7 cannot press down.

[0041] Reference Figure 5 When the pump needs to be unlocked, the pressing head 7 is rotated. When the guide block 13 rotates to the end of the arc groove 821, it will enter the vertical groove 822. The vertically set vertical groove 822 restricts the guide block 13 to move only in the up and down direction. At this time, the pressing head 7 can press up and down to pump out the solution.

[0042] In actual production, the pressing head 7 can be marked to facilitate user identification of the locked and unlocked states. The anti-rotation part 823 is used to limit the rotation range of the guide block 13 within the arc-shaped groove 821, preventing excessive rotation of the main column 2 from affecting other parts inside the pump body.

[0043] The main column 2 is connected to the bottom of the transmission of the auxiliary column 4. The auxiliary column 4 is elastically connected to the bottom plate of the main body 1 by a spring 5. The spring 5 is made of plastic or rubber. The piston 3 is linked between the main column 2 and the auxiliary column 4.

[0044] The main body 1 has an air inlet 12 on its side wall. When the piston 3 moves upward to the maximum distance, the top of the piston 3 abuts against the bottom of the guide part 82, and the piston 3 blocks the air inlet 12.

[0045] Plastic or rubber spring 5 replaces metal spring 5, facilitating the unified recycling and utilization of the pump.

[0046] The main column 2 is equipped with a pressing head 7 at its top, and a liquid outlet channel 21 is provided inside the main column 2. There is a gap between the piston 3 and the main column 2 and the auxiliary column 4. During the upward movement of the piston 3, the sliding chamber 11, the liquid outlet channel 21, and the pressing head 7 are connected in sequence. The principle of the pressing pump using pressure difference to pump out the solution is conventional technology in this field and will not be described in detail here.

[0047] The bottom of the main body 1 is equipped with a one-way valve 6, and a pipette is inserted into the bottom of the one-way valve 6. The one-way valve 6 controls the connection or disconnection between the pipette and the sliding chamber 11. The one-way valve 6 directs the solution in the pipette to the sliding chamber 11, while preventing the solution in the sliding chamber 11 from flowing back into the pipette.

[0048] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A fully plastic push-button pump, comprising a body (1) and a main column (2), wherein the body (1) is provided with a sliding cavity (11), and a piston (3) is slidably connected within the sliding cavity (11), and the main column (2) is drivenly connected to the piston (3), characterized in that: The waterproof guide (8) includes a guide part (82), the top of the guide part (82) is provided with a sealing cap (81), the guide part (82) is inserted into the sliding cavity (11), the sealing cap (81) is threadedly connected to the upper port of the body (1), the main column (2) passes through the sealing cap (81) and is inserted into the guide part (82), and the sealing cap (81) and the main column (2) are sealed together. The waterproof guide (8) is provided with a guide groove, and the main column (2) is provided with a guide block (13) on its outer wall. The guide block (13) is slidably engaged with the guide groove. The guide groove includes an arc-shaped groove (821) and a vertical groove (822). The arc-shaped groove (821) is arranged in a ring at the top of the guide part (82), and the vertical groove (822) is arranged vertically on the inner wall of the guide part (82). One end of the arc-shaped groove (821) is provided with an anti-rotation part (823), and the other end of the arc-shaped groove (821) is connected to the vertical groove (822).

2. The all-plastic push-pump as described in claim 1, characterized in that: The sealing cap (81) includes a cap body (811) and a liquid-proof sealing ring (812). The cap body (811) and the guide part (82) are integrally formed. The liquid-proof sealing ring (812) is sealed between the cap body (811) and the main column (2). The liquid-proof sealing ring (812) is interference-fitted with the cap body (811) and the main column (2).

3. The all-plastic push pump as described in claim 1, characterized in that: The all-plastic push pump has a locked state and an unlocked state; In the locked state, the guide block (13) rotates left and right along the arc groove (821), and the upper and lower sides of the guide block (13) abut against the sealing cap (81) and the guide part (82) respectively; In the unlocked state, the guide block (13) moves up and down in the vertical groove (822), and the main column (2) and the waterproof guide (8) slide up and down in a sliding connection.

4. The all-plastic push-pump as described in claim 1, characterized in that: The main column (2) is connected to a secondary column (4) at its bottom. A spring (5) is elastically connected between the secondary column (4) and the bottom plate of the main body (1). The spring (5) is made of plastic or rubber. The piston (3) is linked between the main column (2) and the secondary column (4). The main body (1) has an air inlet (12) on its side wall. When the piston (3) moves upward to the maximum distance, the top of the piston (3) abuts against the bottom of the guide (82), and the piston (3) blocks the air inlet (12).

5. The all-plastic push-pump as described in claim 4, characterized in that: The main column (2) is provided with a pressing head (7) at the top. The main column (2) is provided with a liquid outlet channel (21). The piston (3) is provided with a gap between the main column (2) and the auxiliary column (4). During the upward movement of the piston (3), the sliding cavity (11), the liquid outlet channel (21), and the pressing head (7) are connected in sequence.

6. The all-plastic push-pump as described in claim 1, characterized in that: The bottom of the body (1) is provided with a one-way valve (6), and a straw is inserted into the bottom of the one-way valve (6). The one-way valve (6) controls the connection or disconnection between the straw and the sliding cavity (11).

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