Pressing pump with multiple pressing stabilizing effects

Abstract

The utility model discloses a pressing pump with multiple pressing stabilizing effects, which belongs to the technical field of infusion pumps and is characterized in that a pressing cavity is formed inside a pump body, a liquid suction pipe is formed at the bottom of the pump body, a glass ball is arranged in the liquid suction pipe, a suction pipe is connected to the bottom of the liquid suction pipe in a clamping manner, and a pump cover is connected to the top of the pump body in a clamping manner. The lock cover is installed in the pressing cavity, a sliding cavity is formed in the lock cover, an annular flange is formed on the inner side wall of the sliding cavity, the main column is slidably connected to the interior of the sliding cavity, the bottom of the main column is connected with the auxiliary column in a clamped mode, the button is connected to the top of the main column in a clamped mode, and the spring is arranged in the sliding cavity. The piston is slidably connected to the interior of the pressing cavity, the multiple limiting ribs are arranged on the inner side wall of the sliding cavity, and the first limiting flange is arranged on the inner wall, making contact with the main column, of the annular flange. The smoothness of the pressing hand feeling is improved, the springback delay is reduced, liquid suction is more sufficient, and the liquid pumping amount is kept accurate for a long time.

Description

Technical Field

[0001] This utility model relates to the field of liquid pump technology, specifically to a press pump with multiple pressing stabilizing effects. Background Technology

[0002] A push-button pump is a common fluid distribution device. In daily life and industrial production, push-button pumps are widely used in the packaging of liquid or semi-fluid products such as cosmetics, pharmaceuticals, and detergents. Traditional push-button pumps are typically installed at the opening of a container, and the liquid is pumped out by manually pressing the pump head. A traditional push-button pump generally includes a pump body, a pump head, a suction tube, and a resilient return mechanism. When the user presses the pump head, liquid is pumped out; after releasing the pressure, the resilient return mechanism causes the pump head to spring back, simultaneously drawing liquid from the container into the pump chamber through negative pressure, thus achieving unidirectional liquid delivery.

[0003] However, traditional push-button pumps are prone to uneven force distribution on the pump head during repeated pressing, causing lateral wobbling of the pump head and suction tube. This wobbling not only disrupts the verticality of the pressing operation, resulting in a clunky pressing feel or delayed rebound, but also leads to insufficient liquid suction, resulting in inaccurate pump volume or even flow interruption. This wobbling problem is significantly exacerbated, especially with viscous liquids or in high-frequency usage scenarios, severely impacting the user experience.

[0004] Therefore, how to provide a press pump with multiple pressing stability effects and solve the defects in the existing technology is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Therefore, this utility model provides a press pump with multiple pressing stabilizing effects to solve the problems in the prior art, such as the pressing feel being stuck and the pump volume being inaccurate, caused by the uneven force on the pump head during the pressing process resulting in lateral shaking.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a push pump with multiple pressing stabilizing effects, comprising:

[0008] The pump body is a hollow structure with an open top. A pressing chamber is formed inside the pump body. A through hole is opened on the outer wall of the pump body. A suction tube is formed at the bottom of the pump body. A glass ball is placed inside the suction tube. A suction tube is snapped into place at the bottom of the suction tube.

[0009] The pump cover is snap-fitted onto the top of the pump body;

[0010] A locking cover is installed inside the pressing chamber, and a sliding chamber is formed inside the locking cover; an annular flange is formed on the inner sidewall of the sliding chamber;

[0011] The main column is a hollow structure with openings at both ends. The main column is slidably connected to the interior of the sliding cavity, and a secondary column is engaged with the bottom of the main column.

[0012] A button is snapped onto the top of the main column, and the button is connected to the interior of the main column;

[0013] A spring is disposed inside the sliding chamber, one end of the spring abutting against the top of the annular flange, and the other end of the spring abutting against the bottom of the button;

[0014] The piston is slidably connected inside the pressing chamber and sleeved on the outer wall of the main column;

[0015] Several limiting ribs are provided on the inner side wall of the sliding chamber, and the limiting ribs are used to limit the lateral displacement of the spring and the main column;

[0016] A first limiting flange is disposed on the inner wall where the annular flange contacts the main column, and the first limiting flange is used to limit the lateral displacement of the main column.

[0017] Furthermore, the button includes:

[0018] The pressing part has a liquid outlet channel inside;

[0019] The first connecting part is a hollow cylindrical structure, and the first connecting part is located at the bottom of the pressing part;

[0020] The second connecting part is a hollow cylindrical structure. The second connecting part is disposed inside the first connecting part and is integrally formed with the pressing part. The second connecting part is connected to the inside of the liquid outlet channel.

[0021] The second limiting flange is disposed on the outer side wall of the second connecting part, and the second limiting flange is used to limit the lateral displacement of the button.

[0022] Furthermore, the cross-sectional shape of the limiting rib is a long trapezoid, and the width of the bottom edge of the long trapezoid near the annular flange is greater than the width of the opposite bottom edge.

[0023] Furthermore, the limiting rib includes a vertical portion and an inclined portion, with the top surface of the inclined portion gradually approaching the top of the lock cover.

[0024] Furthermore, the number of limiting ribs is at least four, and the limiting ribs are arranged in a circumferential array on the inner wall of the sliding chamber.

[0025] Furthermore, it also includes a gasket that engages with the outer wall of the pump body.

[0026] This utility model has the following advantages:

[0027] This invention, by setting limiting ribs, compresses the radial movement space of the spring, thereby restricting the lateral displacement of the main column, reducing the shaking of the main column and button during pressing, improving the verticality of the pressing operation, reducing the jamming during pressing, and making the pump volume more accurate. By setting a first limiting flange, the lateral shaking space of the main column is significantly reduced, thereby improving the verticality of the button when pressed, making the pressing process smoother. By setting a second limiting flange, the lateral movement space of the button is further reduced, and together with the first limiting flange, a double restriction on the lateral offset of the button is achieved, making the pressing process more stable and improving the user experience. Furthermore, by optimizing the shape of the limiting rib, the top surface of its inclined part gradually approaches the top of the lock cover, that is, the thickness gradually decreases upwards, achieving the cooperation between the second limiting flange and the limiting rib, further reducing the lateral movement space of the button, improving the smoothness of the pressing feel, reducing the rebound delay, making the liquid suction more complete, and maintaining the pump volume accurately for a long time. Attached Figure Description

[0028] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0029] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0030] Figure 1 A three-dimensional view of a press pump with multiple pressing stabilizing effects provided by this utility model;

[0031] Figure 2 A cross-sectional view of the press pump with multiple pressing stabilizing effects provided by this utility model;

[0032] Figure 3 A sectional view of the pump body provided for this utility model;

[0033] Figure 4 A perspective view of the lock cover provided for this utility model;

[0034] Figure 5 A three-dimensional view of the limiting rib provided for this utility model;

[0035] Figure 6 Provided by this utility model Figure 2 Enlarged view of the A-structure;

[0036] Figure 7 Provided by this utility model Figure 2 Enlarged view of the B-structure.

[0037] In the diagram: 1 Pump body; 11 Pressing chamber; 12 Through hole; 13 Suction tube; 14 Glass ball; 15 Suction tube; 2 Pump cover; 3 Locking cover; 31 Sliding chamber; 32 Annular flange; 33 First limiting flange; 4 Main column; 41 Sub-column; 5 Button; 51 Pressing part; 52 Discharge channel; 53 First connecting part; 54 Second connecting part; 55 Second limiting flange; 6 Spring; 7 Piston; 8 Limiting rib; 81 Vertical part; 82 Inclined part; 9 Gasket. Detailed Implementation

[0038] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] Please refer to Figures 1-7 The present invention discloses a press pump with multiple pressing stabilizing effects. The present invention consists of nine parts, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, the pump includes a pump body 1, a pump cover 2, a locking cover 3, a main column 4, a button 5, a spring 6, a piston 7, a limiting rib 8, and a first limiting flange 33. The pump body 1 is a hollow structure with an open top. A pressing chamber 11 is formed inside the pump body 1. A through hole 12 is opened on the outer wall of the pump body 1. A suction tube 13 is formed at the bottom of the pump body 1. A glass ball 14 is placed inside the suction tube 13. A suction tube 15 is engaged with the bottom of the suction tube 13. The pump cover 2 is engaged with the top of the pump body 1. The locking cover 3 is installed inside the pressing chamber 11. A sliding chamber 31 is formed inside the locking cover 3. An annular flange 32 is formed on the inner wall of the sliding chamber 31. The main column 4 is a hollow structure with open ends. The main column 4 is slidably connected inside the sliding chamber 31. The bottom of the main column 4 is engaged with... A secondary column 41 is provided, and a button 5 is engaged with the top of the main column 4. The button 5 is connected to the interior of the main column 4. A spring 6 is provided inside the sliding chamber 31. One end of the spring 6 abuts against the top of the annular flange 32, and the other end of the spring 6 abuts against the bottom of the button 5. A piston 7 is slidably connected inside the pressing chamber 11 and sleeved on the outer wall of the main column 4. Several limiting ribs 8 are provided on the inner wall of the sliding chamber 31. The limiting ribs 8 are used to limit the lateral displacement of the spring 6 and the main column 4. A first limiting flange 33 is provided on the inner wall where the annular flange 32 contacts the main column 4. The first limiting flange 33 is used to limit the lateral displacement of the main column 4. Preferably, the number of limiting ribs 8 is at least four, and the limiting ribs 8 are arranged in a circumferential array on the inner wall of the sliding chamber 31.

[0040] In this embodiment, the pump body 1 and the locking cover 3 are common push-pump structures in the prior art, and their shapes are as follows: Figure 3 , Figure 4 As shown, an annular buckle is formed on the outer wall of the top opening of the pump body 1, and a protruding edge is formed on the outer wall of the top of the pump body 1 near the opening. A through-hole is provided on the top surface of the pump cover 2, and the pump cover 2 is engaged with the annular buckle through the through-hole and positioned above the protruding edge. A through-hole 12 is provided on the outer wall of the pump body 1 at the position of the piston 7, and the function of the through-hole 12 is to relieve pressure. The suction tube 15 is inserted into the bottom of the suction tube 13. The upper part of the suction tube 13 forms a conical structure, and the lower part forms a tubular structure. The glass ball 14 is placed in the conical structure of the upper part of the suction tube 13. The cooperation between the suction tube 13 and the glass ball 14 can prevent liquid backflow and ensure one-way liquid inflow. The structure of the suction tube 13 facilitates the drawing of liquid into the pressing chamber 11, and the liquid in the pressing chamber 11 is not easy to leak when pressing. The secondary column 41 is inserted into the bottom of the main column 4 and is connected to the main column 4 by an interference fit; the secondary column 41 has a hollow structure and is connected to the interior of the main column 4. The spring 6 is positioned as follows... Figure 2 As shown, the function of spring 6 is to push button 5 back to its original position for the next press. Piston 7 is sleeved at the connection between main column 4 and secondary column 41, and is located below lock cover 3.

[0041] The setting position of limit rib 8 is as follows Figure 5 As shown, the setting of the limiting ribs 8 achieves tilt space control and rib reinforcement effects. Four equidistant limiting ribs 8 are added to the inner wall of the lock cover 3 to compress the radial movement space of the spring 6 by 20%, while simultaneously restricting the lateral displacement of the main column 4, ensuring the downward pressing trajectory is vertical. By setting the limiting ribs 8, the radial movement space of the spring 6 is compressed, thereby restricting the lateral displacement of the main column 4, reducing the shaking of the main column 4 and button 5 during pressing, improving the verticality of the pressing operation, reducing jamming during the pressing process, and making the pumping volume more accurate.

[0042] The first limiting flange 33 optimizes the engagement between the main column 4 and the locking cover 3. The first limiting flange 33 precisely matches the bottom edge of the main column 4, reducing the gap between them to 0.1-0.2mm and significantly minimizing the lateral sway of the main column 4. By reducing the lateral sway of the main column 4 through the first limiting flange 33, the verticality of the button 5 when pressed is improved, making the pressing process smoother.

[0043] like Figure 2 As shown, button 5 includes a pressing part 51, a first connecting part 53, a second connecting part 54, and a second limiting flange 55. The pressing part 51 has a liquid outlet channel 52 inside. The first connecting part 53 is a hollow cylindrical structure and is located at the bottom of the pressing part 51. The second connecting part 54 is a hollow cylindrical structure and is located inside the first connecting part 53 and integrally formed with the pressing part 51. The second connecting part 54 is connected to the inside of the liquid outlet channel 52. The second limiting flange 55 is located on the outer wall of the second connecting part 54 and is used to limit the lateral displacement of button 5. In this embodiment, the length of the first connecting part 53 is greater than the length of the second connecting part 54. The main column 4 is inserted into the bottom of the second connecting part 54. When the button 5 is pressed down, the lower part of the first connecting part 53 slides in the pressing chamber 11, and the lower part of the second connecting part 54 slides in the sliding chamber 31. The liquid flows upward along the suction tube 15, the suction tube 13, the secondary column 41, and the main column 4, and finally flows out from the liquid outlet channel 52. The second limiting flange 55 forms a tight fit with the locking cover 3, so that the gap is controlled at 0.1-0.2mm. Together with the first limiting flange 33, the lateral displacement of the button 5 is doubled, and the tilt angle of the button 5 is reduced from ≥8° in the prior art to ≤1°. By setting the second limiting flange 55, the lateral movement space of the button 5 is further reduced, and together with the first limiting flange 33, the lateral displacement of the button 5 is doubled, making the pressing process more stable and improving the user experience.

[0044] like Figure 4 , Figure 5As shown, the cross-sectional shape of the limiting rib 8 is a long trapezoidal strip, and the width of the bottom edge of this long trapezoid near the annular flange 32 is greater than the width of the opposite bottom edge; the limiting rib 8 includes a vertical portion 81 and an inclined portion 82, and the top surface of the inclined portion 82 gradually approaches the top of the locking cover 3. In this embodiment, the shape of the limiting rib 8 is as follows: Figure 5 As shown, the vertical portion 81 and the inclined portion 82 of the limiting rib 8 are both trapezoidal with a wider bottom and a narrower top. The vertical portion 81 has the same thickness at both the top and bottom, while the top surface of the inclined portion 82 gradually approaches the top of the lock cover 3, meaning the thickness gradually decreases upwards. The advantage of this is that when the button 5 is first pressed, the second limiting flange 55 will not immediately come into contact with the limiting rib 8. As the button 5 is pressed further down, the second limiting flange 55 will gradually come into contact with the limiting rib 8, forming a cooperation between the second limiting flange 55 and the limiting rib 8. This further reduces the lateral movement space of the button 5 and improves the verticality of the button 5 when it is pressed.

[0045] like Figure 2 As shown, it also includes a gasket 9, which is snapped onto the outer wall of the pump body 1. In this embodiment, by providing the gasket 9, the sealing between the pump body 1 and the container is enhanced, preventing liquid leakage or external contamination.

[0046] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A push-pump with multiple pressing stabilizing effects, characterized in that, include: The pump body (1) is a hollow structure with an open top. A pressing chamber (11) is formed inside the pump body (1). A through hole (12) is opened on the outer side wall of the pump body (1). A suction tube (13) is formed at the bottom of the pump body (1). A glass ball (14) is placed inside the suction tube (13). A suction tube (15) is snapped into place at the bottom of the suction tube (13). Pump cover (2) is snapped onto the top of the pump body (1); A locking cover (3) is installed inside the pressing chamber (11), and a sliding chamber (31) is formed inside the locking cover (3); an annular flange (32) is formed on the inner sidewall of the sliding chamber (31); The main column (4) is a hollow structure with openings at both ends. The main column (4) is slidably connected inside the sliding chamber (31). The bottom of the main column (4) is engaged with a secondary column (41). Button (5) is engaged with the top of the main column (4), and the button (5) is connected to the inside of the main column (4); A spring (6) is disposed inside the sliding chamber (31), one end of the spring (6) abutting the top of the annular flange (32), and the other end of the spring (6) abutting the bottom of the button (5); The piston (7) is slidably connected inside the pressing chamber (11) and sleeved on the outer wall of the main column (4); Several limiting ribs (8) are provided on the inner side wall of the sliding chamber (31). The limiting ribs (8) are used to limit the lateral displacement of the spring (6) and the main column (4). A first limiting flange (33) is disposed on the inner wall where the annular flange (32) contacts the main column (4), and the first limiting flange (33) is used to limit the lateral displacement of the main column (4).

2. The press pump with multiple pressing stabilizing effects as described in claim 1, characterized in that, The button (5) includes: The pressing part (51) has a liquid outlet channel (52) inside; The first connecting part (53) is a hollow cylindrical structure, and the first connecting part (53) is disposed at the bottom of the pressing part (51); The second connecting part (54) is a hollow cylindrical structure. The second connecting part (54) is disposed inside the first connecting part (53) and integrally formed with the pressing part (51). The second connecting part (54) is connected to the inside of the liquid outlet channel (52). A second limiting flange (55) is disposed on the outer side wall of the second connecting part (54), and the second limiting flange (55) is used to limit the lateral displacement of the button (5).

3. The press pump with multiple pressing stabilizing effects as described in claim 1, characterized in that, The cross-sectional shape of the limiting rib (8) is a long trapezoid, and the width of the bottom edge of the long trapezoid near the annular flange (32) is greater than the width of the opposite bottom edge.

4. The press pump with multiple pressing stabilizing effects as described in claim 3, characterized in that, The limiting rib (8) includes a vertical part (81) and an inclined part (82), the top surface of which gradually approaches the top of the lock cover (3).

5. The press pump with multiple press stabilization effects as described in claim 4, characterized in that, The number of limiting ribs (8) is at least four, and the limiting ribs (8) are arranged in a circumferential array on the inner wall of the sliding chamber (31).

6. The press pump with multiple press stabilization effects as described in claim 1, characterized in that, It also includes a gasket (9) that engages with the outer wall of the pump body (1).

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