A spring pump structure

Abstract

The utility model relates to spring pump technical field, especially a spring pump structure, including the pump body, be provided with the liquid storage cavity and the liquid inlet channel in the pump body, the movable setting of liquid storage cavity has the press bar, be provided with the liquid outlet channel and the liquid inlet hole on the press bar, the liquid inlet hole is connected in the liquid storage cavity and the liquid outlet channel, the first piston is set up on the press bar, the first piston is dynamically sealed with the liquid storage cavity, the bottom of liquid storage cavity is provided with the fixed base, the inner side end of fixed base is provided with the ball valve that blocks in the liquid inlet channel, the fixed base is provided with the liquid inlet hole that is connected in the liquid inlet channel and the liquid storage cavity, be provided with the first spring between the fixed base and the first piston, in the use process, the ball valve does not contact with the first spring, can prevent the first spring and hold up the ball valve, make the ball valve unable to reset, this structure can prolong the service life of the press pump.

Description

Technical Field

[0001] This utility model relates to the field of spring pump technology, and in particular to a spring pump structure. Background Technology

[0002] Patent CN210479538U discloses a double-spring pump core, including a pump body, connector, push rod, sealing ring, spring A, piston, liquid outlet, lower valve, spring B, stainless steel ball, and liquid inlet. The upper end of the pump body is provided with a connector, and the push rod is sleeved inside the connector. A sealing ring is provided in the middle of the inner surface of the pump body, and the inner surface of the pump body is in contact with spring A. A piston is provided at the bottom of spring A, and a liquid outlet is provided inside the piston. The liquid outlet is connected to the lower valve, and the lower valve is connected to spring B. A stainless steel ball is provided at the bottom of spring B, and a liquid inlet is provided at the bottom of the stainless steel ball. The double-spring design ensures that the steel ball resets in time when there is no pressure, so that the liquid can achieve a better spray effect.

[0003] The problem with the above technology is that, since the bottom of spring B abuts against the stainless steel ball, and the stainless steel ball is used to block the liquid inlet, after long-term use, spring B is prone to deformation and the stainless steel ball will get stuck inside spring B, thus preventing the stainless steel ball from returning to its original position to block the liquid inlet and making it impossible to pump out liquid normally.

[0004] To address these technical problems, a spring pump structure is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a spring pump structure that can prevent the ball valve from getting stuck in the spring and extend the service life of the pump.

[0006] The technical solution adopted by this utility model to solve the problem is: a spring pump structure, including a pump body, a liquid storage chamber and a liquid inlet channel are provided in the pump body, a pressing rod is movably arranged in the liquid storage chamber, the pressing rod is provided with a liquid outlet channel and a liquid inlet hole, the liquid inlet hole is connected to the liquid storage chamber and the liquid outlet channel, a first piston is sleeved on the pressing rod, the first piston is dynamically sealed to the liquid storage chamber, a fixed seat is provided at the bottom of the liquid storage chamber, a ball valve is provided on the inner end of the fixed seat to block the liquid inlet channel, the fixed seat is provided with a liquid inlet hole connecting the liquid inlet channel and the liquid storage chamber, and a first spring is provided between the fixed seat and the first piston.

[0007] As a further improvement to the above technical solution, a number of protrusions are arranged at intervals around the inner side of the liquid inlet hole. When the ball valve is opened, the ball valve abuts against the protrusions.

[0008] As a further improvement to the above technical solution, a second piston is sleeved at the bottom of the pressing rod, the first spring is disposed between the second piston and the fixed seat, the second piston abuts against the first piston and forms a sealed space, and the liquid inlet is located in the sealed space.

[0009] As a further improvement to the above technical solution, the top of the fixed seat is provided with an annular protrusion, the bottom of the first spring is sleeved on the annular protrusion, the second piston is provided with a first flange, and the top of the first spring abuts against the first flange.

[0010] As a further improvement to the above technical solution, a support portion is provided at the liquid inlet channel, and when the ball valve is blocked in the liquid inlet channel, the ball valve abuts against the support portion.

[0011] As a further improvement to the above technical solution, the pump body is provided with a vent hole, which is located on the outside of the first piston.

[0012] As a further improvement to the above technical solution, a second flange is provided on the upper part of the pressing rod, and a second spring is provided between the second flange and the first piston.

[0013] As a further improvement to the above technical solution, it also includes a cover, which is placed on top of the pump body and pressed against the top of the second flange and the first piston.

[0014] The beneficial effects of this utility model are as follows: Under normal conditions, the ball valve is unblocked from the inlet channel, and the liquid in the bottle can fill the storage chamber. The inlet hole is blocked at this time. After pressing the pressing rod, the pressing rod can drive the first piston to move downward a certain distance and compress the first spring. The pressing rod can also move downward a certain distance relative to the first piston, so that the inlet hole is unblocked. At this time, the inlet hole is connected to the storage chamber, and the liquid in the storage chamber can enter the outlet channel through the inlet hole and be discharged outward. Due to air pressure, the ball valve can block the inlet channel. Subsequently, the first spring can reset the first piston and the pressing rod, and the ball valve can reopen the inlet channel and abut against the fixed seat. The liquid in the bottle can refill the storage chamber through the inlet channel. During use, the ball valve does not contact the first spring, which can prevent the first spring from jamming the ball valve and preventing the ball valve from resetting. This structure can extend the service life of the pressing pump. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a structural diagram of the push pump of this utility model;

[0017] Figure 2 This is an exploded view of the push pump of this utility model;

[0018] Figure 3 This is a cross-sectional view of the press pump of this utility model;

[0019] Figure 4 This is a structural diagram of the fixing base of this utility model.

[0020] In the diagram: 1-Pump body, 11-Liquid storage chamber, 12-Liquid inlet channel, 13-Vent hole, 14-Support part, 2-Pressing rod, 21-Liquid outlet channel, 22-Liquid inlet hole, 23-Second flange, 3-First piston, 4-Fixing seat, 41-Through hole, 42-Protrusion, 43-Annular protrusion, 5-Ball valve, 6-Second piston, 61-First flange, 7-Cover body, 8-First spring, 9-Second spring. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] Reference Figures 1 to 4A spring pump structure includes a pump body 1, a liquid storage chamber 11 and an inlet channel 12 are provided inside the pump body 1, a pressing rod 2 is movably arranged inside the liquid storage chamber 11, the pressing rod 2 is provided with an outlet channel 21 and an inlet hole 22, the inlet hole 22 is connected to the liquid storage chamber 11 and the outlet channel 21, a first piston 3 is sleeved on the pressing rod 2, the first piston 3 is dynamically sealed to the liquid storage chamber 11, a fixed seat 4 is provided at the bottom of the liquid storage chamber 11, a ball valve 5 is provided on the inner end of the fixed seat 4 to block the inlet channel 12, a through hole 41 is provided on the fixed seat 4 to connect the inlet channel 12 and the liquid storage chamber 11, and a first spring 8 is provided between the fixed seat 4 and the first piston 3;

[0026] Under normal conditions, the ball valve 5 is unblocked from the inlet channel 12, and the liquid in the bottle can fill the storage chamber 11. The inlet hole 22 is blocked at this time. After pressing the pressing rod 2, the pressing rod 2 can drive the first piston 3 to move downward a certain distance and compress the first spring 8. The pressing rod 2 can also move downward a certain distance relative to the first piston 3, so that the inlet hole 22 is unblocked from the first piston 3. At this time, the inlet hole 22 is connected to the storage chamber 11. The liquid in the storage chamber 11 can enter the outlet channel 21 through the inlet hole 22 and be discharged outward. Due to air pressure, the ball valve 5 can block the inlet channel 12. Then the first spring 8 can reset the first piston 3 and the pressing rod 2. The ball valve 5 can reopen the inlet channel 12 and abut against the fixed seat 4. The liquid in the bottle can refill the storage chamber 11 through the inlet channel 12. During use, the ball valve 5 does not contact the first spring 8, which can prevent the first spring 8 from jamming the ball valve 5 and preventing the ball valve 5 from being unable to reset. This structure can extend the service life of the pressing pump.

[0027] In a preferred embodiment, a plurality of protrusions 42 are spaced apart around the inner side of the through hole 41. When the ball valve 5 is opened, the ball valve 5 abuts against the protrusions 42, and the protrusions 42 can prevent the ball valve 5 from entering the liquid storage chamber 11 and thus prevent it from resetting.

[0028] In a preferred embodiment, a second piston 6 is sleeved at the bottom of the pressing rod 2, and a first spring 8 is disposed between the second piston 6 and the fixed seat 4. The second piston 6 abuts against the first piston 3 and forms a sealed space, and the liquid inlet 22 is located in the sealed space.

[0029] In a preferred embodiment, in order to make the first spring 8 more securely installed, the top of the fixing base 4 is provided with an annular protrusion 43, the bottom of the first spring 8 is sleeved on the annular protrusion 43, the second piston 6 is provided with a first flange 61, and the top of the first spring 8 abuts against the first flange 61.

[0030] In a preferred embodiment, a support portion 14 protrudes from the liquid inlet channel 12. When the ball valve 5 blocks the liquid inlet channel 12, the ball valve 5 abuts against the support portion 14.

[0031] In a preferred embodiment, the pump body 1 is provided with a vent hole 13, which is located on the outside of the first piston 3. When the first piston 3 moves up and down, the internal and external air pressure can be balanced through the vent hole 13 to prevent the pump body 1 from breaking.

[0032] In a preferred embodiment, a second flange 23 is provided on the upper part of the pressing rod 2, and a second spring 9 is provided between the second flange 23 and the first piston 3. The double spring structure can generate explosive force when pressed, thereby increasing the pressure and pumping out the residual liquid in the liquid outlet channel 21.

[0033] In a preferred embodiment, a cover 7 is also included, which is placed on top of the pump body 1 and pressed against the top of the second flange 23 and the first piston 3.

[0034] 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 spring pump structure, characterized in that: The pump includes a pump body (1), which has a liquid storage chamber (11) and a liquid inlet channel (12). A pressing rod (2) is movably arranged in the liquid storage chamber (11). The pressing rod (2) has a liquid outlet channel (21) and a liquid inlet hole (22). The liquid inlet hole (22) is connected to the liquid storage chamber (11) and the liquid outlet channel (21). A first piston (3) is sleeved on the pressing rod (2). The first piston (3) is dynamically sealed to the liquid storage chamber (11). A fixed seat (4) is provided at the bottom of the liquid storage chamber (11). A ball valve (5) is provided on the inner end of the fixed seat (4) to block the liquid inlet channel (12). A through hole (41) is provided on the fixed seat (4) to connect the liquid inlet channel (12) and the liquid storage chamber (11). A first spring (8) is provided between the fixed seat (4) and the first piston (3).

2. The spring pump structure as described in claim 1, characterized in that: A plurality of protrusions (42) are provided at intervals around the inner side of the through hole (41). When the ball valve (5) is opened, the ball valve (5) abuts against the protrusions (42).

3. The spring pump structure as described in claim 2, characterized in that: The bottom of the pressing rod (2) is fitted with a second piston (6), the first spring (8) is disposed between the second piston (6) and the fixed seat (4), the second piston (6) abuts against the first piston (3) and forms a sealed space, and the liquid inlet (22) is located in the sealed space.

4. The spring pump structure as described in claim 3, characterized in that: The top of the fixed seat (4) is provided with an annular protrusion (43), the bottom of the first spring (8) is sleeved on the annular protrusion (43), the second piston (6) is provided with a first flange (61), and the top of the first spring (8) abuts against the first flange (61).

5. The spring pump structure as described in claim 4, characterized in that: A support part (14) is provided at the liquid inlet channel (12). When the ball valve (5) blocks the liquid inlet channel (12), the ball valve (5) abuts against the support part (14).

6. The spring pump structure as described in claim 5, characterized in that: The pump body (1) is provided with a vent (13), which is located on the outside of the first piston (3).

7. A spring pump structure as described in claim 6, characterized in that: The upper part of the pressing rod (2) is provided with a second flange (23), and a second spring (9) is provided between the second flange (23) and the first piston (3).

8. The spring pump structure as described in claim 7, characterized in that: It also includes a cover (7) which covers the top of the pump body (1) and is pressed against the top of the second flange (23) and the first piston (3).

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