Lockable pressing pump head

Abstract

The utility model belongs to the technical field of pressing pump heads, and discloses a lockable pressing pump head which comprises a pressing pump assembly, the pressing pump assembly comprises a sealing cover, a liquid storage chamber is fixedly arranged at the bottom of the sealing cover, a pressing rod is arranged in the liquid storage chamber in a sliding mode, a locking groove is formed in the rear side of the pressing rod, and the locking groove is connected with the sealing cover. And a locking assembly is arranged at the top of the sealing cover and comprises a base, a rotating column is rotationally arranged in the base, round teeth are fixedly arranged at the top of the rotating column, locking blocks are slidably arranged at the tops of the round teeth in a meshed mode, and the locking blocks are connected with the locking grooves in a clamped mode. The non-manual mistaken pressing phenomenon in the transportation, storage and non-use state is effectively eradicated, liquid leakage is prevented, the structural stability, locking reliability and use safety of the pressing pump head are remarkably improved, the overall structure is compact and integrated, no external quick-wear part exists, and adaptability is higher.

Description

Technical Field

[0001] This utility model belongs to the technical field of press pump heads, specifically a lockable press pump head. Background Technology

[0002] A press pump head is a fluid transport functional component that is installed at the opening of a liquid container. It relies on the external force of manual pressing to drive the internal pump structure to complete the actions of liquid suction, liquid compression, and liquid dispensing. It also has the functions of springback reset and anti-backflow adaptation. It is widely used in the packaging of liquid products in the fields of daily chemicals, pharmaceuticals, and household goods. It can realize the quantitative or continuous use of liquids, while forming a seal protection for the liquid in the container to prevent leakage and contamination.

[0003] Currently, in actual use, the locking structure of the press pump head is simple, using only threaded locking. This results in insufficient locking reliability, and the threads are prone to loosening after long-term use, making stable locking impossible. In addition, the locking operation is not convenient, as threaded locking requires multiple rotations to lock or unlock, which is inefficient.

[0004] Therefore, a lockable press pump head is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a lockable push-button pump head, which has the advantages of reliable locking and convenient operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lockable press pump head, comprising a press pump assembly, the press pump assembly including a sealing cover, a liquid storage chamber fixedly provided at the bottom of the sealing cover, a press rod slidably provided inside the liquid storage chamber, a locking groove provided on the rear side of the press rod, a locking assembly provided at the top of the sealing cover, the locking assembly including a base, a rotating column rotatably provided inside the base, a round tooth fixedly provided at the top of the rotating column, a locking block slidably engaged with the top of the round tooth, and the locking block engaging with the locking groove.

[0007] Preferably, the base has a groove inside, and a sliding plate is fixed on the outside of the rotating column, with the groove and the sliding plate slidably connected.

[0008] By adopting the above technical solutions, the stability of the transmission process and the structural reliability are improved.

[0009] Preferably, three connecting columns are axially fixed on the outer side of the base, a top plate is fixed on the top of the connecting columns, a locking block groove is opened on the rear side of the top plate, the locking block groove is slidably connected with the locking block, and a limit groove is opened on the front side of the top plate.

[0010] By adopting the above technical solution, the movement along a straight trajectory is guaranteed.

[0011] Preferably, a liquid outlet is fixedly provided at the top of the push rod, and a limiting block is fixedly provided at the front side of the push rod, the limiting block being slidably connected to the limiting groove.

[0012] By adopting the above technical solution, the rotation of the pressing lever is avoided.

[0013] Preferably, a piston is fixedly provided at the bottom of the push rod, a spring is fixedly provided at the bottom of the piston, a ball is fixedly provided at the bottom of the spring, and a straw is fixedly provided at the bottom of the liquid storage chamber.

[0014] By adopting the above technical solution, the integrated function of pumping and dispensing liquid in a press-type system can be achieved.

[0015] Preferably, the locking block has a matching tooth groove on the side that meshes with the round tooth, the tooth pitch of the tooth groove is the same as the tooth pitch of the round tooth, and the locking block has an arc-shaped guide surface at the end away from the round tooth.

[0016] By adopting the above technical solution, the movement of the locking block is guaranteed to be smooth.

[0017] Preferably, a sealing washer is fixedly provided on the top of the piston, and the sealing washer is in contact with the bottom of the push rod.

[0018] By adopting the above technical solutions, the sealing performance is enhanced.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model integrates the locking component onto the top of the sealing cover of the press pump assembly. The base, rotating column, circular teeth, and locking block form a meshing transmission locking mechanism. It is equipped with a radial limiting structure of the base slide groove and rotating column slide plate, a top plate supported by the base connecting column, and a top plate locking block groove for directional guidance of the locking block. At the same time, it combines the axial limiting cooperation of the top plate limiting groove and the push rod limiting block, and the snap-fit ​​cooperation of the locking block and the push rod locking groove to achieve precise transmission and structural coordination of the pressing pump head locking and unlocking actions. It effectively prevents non-human-caused accidental pressing during transportation, storage, and non-use, prevents liquid leakage, and significantly improves the structural stability, locking reliability, and safety of the pressing pump head. Moreover, the overall structure is compact and integrated, with no external vulnerable parts, and has stronger adaptability.

[0021] 2. This utility model features a piston fixedly mounted at the bottom of the push rod, with a spring and a ball connected sequentially at the bottom of the piston. A suction tube is fixedly installed at the bottom of the liquid storage chamber. The piston, sliding with the push rod, compresses or resets the spring to provide pumping power. The ball enables one-way switching of the liquid storage chamber, and the suction tube allows for deep suction of liquid from an external container. This achieves the integrated function of negative pressure suction and smooth pumping of the push pump head. The spring can automatically reset the push rod, improving ease of use, preventing liquid backflow, enhancing the sealing of the liquid storage chamber and pumping efficiency, extending the service life of the push pump head, and expanding its applicable scenarios. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the pressing tube of this utility model;

[0025] Figure 4 This is a cross-sectional structural diagram of the locking component of this utility model.

[0026] In the diagram: 1. Press pump assembly; 101. Sealing cap; 102. Liquid storage chamber; 103. Ball bearing; 104. Spring; 105. Piston; 106. Press rod; 107. Dispensing nozzle; 108. Suction tube; 109. Locking groove; 110. Limiting block;

[0027] 2. Locking assembly; 201. Base; 202. Rotary column; 203. Circular tooth; 204. Locking block; 205. Slide groove; 206. Slide plate; 207. Connecting column; 208. Top plate; 209. Locking block groove; 210. Limiting groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The following describes an embodiment of this utility model based on its overall structure.

[0030] like Figures 1 to 4As shown, this utility model provides a lockable push-button pump head, including a push-button pump assembly 1. The push-button pump assembly 1 includes a sealing cover 101, a liquid storage chamber 102 fixedly provided at the bottom of the sealing cover 101, a push rod 106 slidably provided inside the liquid storage chamber 102, the push rod 106 slidably assembled inside the liquid storage chamber 102, a locking groove 109 provided on the rear side of the push rod 106, and a locking assembly 2 provided at the top of the sealing cover 101. The locking assembly 2 includes a base 201, a rotating column 202 rotatably provided inside the base 201, a round tooth 203 fixedly provided at the top of the rotating column 202, and a locking block 204 slidably engaged at the top of the round tooth 203. The locking block 204 engages with the locking groove 109 to achieve a hard lock on the axial sliding of the push rod 106.

[0031] In this embodiment, the base 201 has a sliding groove 205 inside, and the rotating column 202 has a sliding plate 206 fixed on the outside. The sliding groove 205 and the sliding plate 206 are slidably connected, and the sliding plate 206 can move synchronously with the rotating column 202 along the trajectory of the sliding groove 205.

[0032] Three connecting columns 207 are axially fixed on the outer side of the base 201. A top plate 208 is fixed on the top of the connecting columns 207. A locking block groove 209 is opened on the rear side of the top plate 208. The locking block groove 209 is slidably connected to the locking block 204 to ensure that the locking block 204 moves along a preset straight trajectory and avoids its sliding deviation, which would cause the locking to fail. A limit groove 210 is opened on the front side of the top plate 208.

[0033] A liquid outlet 107 is fixedly provided on the top of the push rod 106. The liquid outlet 107 is fixedly connected to the top of the push rod 106. The axial sliding of the push rod 106 can realize the pressure regulation inside the liquid storage chamber 102, thereby completing the pumping action. A limiting block 110 is fixedly provided on the front side of the push rod 106. The limiting block 110 is slidably connected to the limiting groove 210 to prevent the push rod 106 from rotating.

[0034] A piston 105 is fixedly installed at the bottom of the push rod 106, a spring 104 is fixedly installed at the bottom of the piston 105, a ball 103 is fixedly installed at the bottom of the spring 104, and a straw 108 is fixedly installed at the bottom of the liquid storage chamber 102, so as to realize the function of press-type negative pressure liquid suction and liquid pumping.

[0035] The locking block 204 has a matching tooth groove on the side that meshes with the round tooth 203. The tooth pitch of the tooth groove is the same as the tooth pitch of the round tooth 203. The locking block 204 has an arc-shaped guide surface at the end away from the round tooth 203 to avoid rigid collision or friction jamming at the edge.

[0036] A sealing gasket is fixedly provided on the top of the piston 105, and the sealing gasket fits against the bottom of the push rod 106 to completely block the liquid leakage path.

[0037] The working principle and process of a lockable push-button pump head:

[0038] When the rotating column 202 in the locking assembly 2 is manually rotated, the sliding plate 206 on the outside of the rotating column 202 slides synchronously along the sliding groove 205 inside the base 201. The sliding groove 205 forms a radial limit on the rotating column 202, ensuring that the rotating column 202 rotates smoothly and avoiding radial deviation. When the rotating column 202 rotates, the round tooth 203 fixed at its top rotates synchronously. Because the locking block 204 meshes with the round tooth 203 and is restricted by the directional guidance of the locking block groove 209, the locking block 204 slides away from the push rod 106 along the locking block groove 209 until it completely disengages from the locking groove 109 behind the push rod 106. After the locking block 204 completely disengages from the locking groove 109, the rotating column 202 stops rotating. At this time, the push rod 106 is only restricted by the axial guidance of the limiting block 110 and the limiting groove 210, releasing the pressing lock on the push rod 106, and the press pump head is in the pumpable state.

[0039] When the push rod 106 slides downward, the piston 105 fixed at its bottom moves downward in sync, compressing the spring 104 inside the liquid storage chamber 102, increasing the internal pressure of the liquid storage chamber 102, pushing the ball 103 downward, opening the bottom channel of the liquid storage chamber 102, and the liquid inside the liquid storage chamber 102 rises along the internal channel of the push rod 106 under pressure, and is finally discharged through the liquid outlet 107 at the top of the push rod 106, completing the pumping process.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A lockable push pump head comprising a push pump assembly (1), characterized in that: The press pump assembly (1) includes a sealing cover (101), a liquid storage chamber (102) is fixedly provided at the bottom of the sealing cover (101), a press rod (106) is slidably provided inside the liquid storage chamber (102), a locking groove (109) is provided on the rear side of the press rod (106), a locking assembly (2) is provided at the top of the sealing cover (101), the locking assembly (2) includes a base (201), a rotating column (202) is rotatably provided inside the base (201), a round tooth (203) is fixedly provided at the top of the rotating column (202), a locking block (204) is slidably engaged at the top of the round tooth (203), and the locking block (204) is engaged with the locking groove (109).

2. A lockable press pump head according to claim 1, characterized in that: The base (201) has a groove (205) inside, and a slide plate (206) is fixed on the outside of the rotating column (202). The groove (205) and the slide plate (206) are slidably connected.

3. A lockable press pump head according to claim 1, characterized in that: The base (201) is axially fixed with three connecting columns (207) on its outer side. The top of the connecting columns (207) is fixed with a top plate (208). The rear side of the top plate (208) is provided with a locking block groove (209). The locking block groove (209) is slidably connected with the locking block (204). The front side of the top plate (208) is provided with a limit groove (210).

4. A lockable press pump head according to claim 1, characterized in that: The top of the push rod (106) is fixedly provided with a liquid outlet (107), and the front side of the push rod (106) is fixedly provided with a limiting block (110), which is slidably connected to the limiting groove (210).

5. A lockable press pump head according to claim 1, characterized in that: A piston (105) is fixedly provided at the bottom of the push rod (106), a spring (104) is fixedly provided at the bottom of the piston (105), a ball (103) is fixedly provided at the bottom of the spring (104), and a straw (108) is fixedly provided at the bottom of the liquid storage chamber (102).

6. A lockable press pump head according to claim 1, characterized in that: The locking block (204) has a matching tooth groove on the side that meshes with the round tooth (203), the tooth pitch of the tooth groove is consistent with the tooth pitch of the round tooth (203), and the locking block (204) has an arc-shaped guide surface at the end away from the round tooth (203).

7. A lockable press pump head according to claim 5, characterized in that: A sealing gasket is fixedly provided on the top of the piston (105), and the sealing gasket is in contact with the bottom of the push rod (106).

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