Battery pack quick-change electrochemical gas single-point pump

Abstract

The utility model relates to a battery pack quick-change electrochemical gas single-point pump. A piston is slidably arranged in the pump cylinder, and an upper opening communicated with the upper face of the piston is formed in the upper portion of the pump cylinder and comprises a first blocking table, a first sealing face and a first rotary disassembly matching face. The battery pack comprises a shell and at least one battery arranged in the shell, the lower end of the shell is provided with a step boss matched with the upper opening in shape, and the lower portion of the step boss is provided with small air outlet holes. The step boss is provided with a second blocking table which is elastically clamped with the first blocking table, a second sealing surface which is in sealing fit with the first sealing surface and a second rotary disassembly matching surface which is matched with the first rotary disassembly matching surface, and the upper part of the shell is provided with a screwing part which is convenient to screw; a V-shaped bulge and a V-shaped groove are correspondingly arranged on the first rotary disassembly matching surface and the second rotary disassembly matching surface respectively, and when the battery pack is rotated, the battery pack can be quickly disassembled by virtue of mutual pushing of the V-shaped bulge and the V-shaped groove; and an elastic sealing ring is arranged between the first sealing surface and the second sealing surface. Dismounting is convenient, and air leakage is not prone to occurring.

Description

Technical Field

[0001] This utility model relates to a single-point pump for quick-change electrochemical gases in a battery pack. Background Technology

[0002] In the field of dry lubrication, centralized lubrication systems are conventionally used to replace traditional manual lubrication. However, it is inconvenient to set up lubrication systems for some corners, moving parts or high-altitude lubrication points. Therefore, electrochemical gas single-point pumps have emerged on the market as the main lubrication method for individual lubrication points that are not convenient for centralized lubrication. The electrochemical gas single-point pump is one such example. This pump mainly uses battery electrolysis to generate gas in a closed chamber, thereby driving the piston to move and squeeze out the grease.

[0003] However, existing electrochemical gas single-point pumps are either disposable and do not require battery replacement, or they are non-disposable but battery replacement is very inconvenient. Since the battery needs to be placed in a closed space, it is very inconvenient to replace the battery in order to achieve better sealing. Moreover, there is a risk to the sealing after battery replacement. Utility Model Content

[0004] The purpose of this invention is to provide a battery pack quick-change electrochemical gas single-point pump that, through a special connection and matching structure, allows for the rapid disassembly and replacement of the entire battery pack without disassembling the battery, and does not pose a sealing risk.

[0005] The technical solution of this utility model is as follows: The battery pack quick-change electrochemical gas single-point pump includes:

[0006] The pump cylinder has a piston that slides inside, and an upper opening that communicates with the piston. The upper opening includes a first stop, a first sealing surface, and a first screw-on mating surface.

[0007] The battery pack includes a housing and at least one battery disposed inside the housing. The lower end of the housing has a stepped protrusion adapted to the shape of the upper opening. The lower part of the stepped protrusion has a small vent hole. The stepped protrusion is provided with a second stop that elastically engages with the first stop, a second sealing surface that seals with the first sealing surface, and a second screw-out mating surface that engages with the first screw-out mating surface. The upper part of the housing is provided with a screwing part that facilitates screwing.

[0008] The first and second rotating mating surfaces are respectively provided with V-shaped protrusions and V-shaped grooves. When rotating the battery pack, the battery pack can be quickly removed by relying on the mutual pushing of the V-shaped protrusions and V-shaped grooves.

[0009] An elastic sealing ring is provided between the first and second sealing surfaces.

[0010] The beneficial effects of this solution are as follows: When disassembling the battery pack, simply rotate the screw part of the battery pack by hand or with a tool, causing the outer shell to rotate. At this time, the tightly fitting V-shaped protrusions and V-shaped grooves are offset from each other, and their inclined surfaces abut against each other, gradually lifting the battery pack so that it can gradually move away from the pump cylinder. This also disengages the snap-fit ​​connection between the first and second stops, allowing the battery pack to be easily removed. Then, a new battery pack is pressed into the pump cylinder. When pressing, the V-shaped protrusions and V-shaped grooves align. When the first and second stops engage due to elastic deformation, the installation is complete. Moreover, during this process, the elastic sealing ring located between the first and second sealing surfaces is compressed to achieve a seal. Therefore, the solution of this application can achieve rapid disassembly and replacement of the battery pack without disassembling each battery individually, and ensures that the outer shell of the battery pack and the pump cylinder still maintain good sealing performance after replacement.

[0011] Furthermore, at least two V-shaped protrusions and V-shaped grooves are provided on the first and second screw-on mating surfaces, and they are evenly distributed circumferentially. This arrangement ensures that the battery pack receives a uniform disengagement force when screwed on, avoiding problems such as uneven force or tilting that could lead to jamming or difficulty in disassembly.

[0012] Furthermore, the first platform consists of two or more trapezoidal platforms, each of which is evenly distributed along the circumference.

[0013] Furthermore, the first platform is a ring-shaped platform.

[0014] Furthermore, the pump barrel and / or housing are made of plastic.

[0015] Furthermore, the screwing part is a polygonal boss. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external appearance of an embodiment of a battery pack quick-change electrochemical gas single-point pump according to the present invention;

[0017] Figure 2 for Figure 1 Vertical sectional perspective view of the upper part;

[0018] Figure 3 A 3D view of the battery pack;

[0019] Figure 4 A three-dimensional view of the upper part of the pump cylinder;

[0020] In the diagram: 1-pump barrel, 11-upper opening, 12-lower outlet, 121-first stop, 122-first sealing surface, 123-first screw-on mating surface, 124-V-shaped protrusion, 2-battery pack, 21-outer shell, 211-second stop, 212-second sealing surface, 213-second screw-on mating surface, 214-tightening part, 22-battery, 23-elastic sealing ring, 24-V-shaped groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0025] An embodiment of the battery pack quick-change electrochemical gas single-point pump of this utility model: (e.g.) Figure 1-4 As shown, the battery pack quick-change electrochemical gas single-point pump includes a pump cylinder 1 and a battery pack 2.

[0026] A piston is slidably mounted inside the pump cylinder 1. The upper part has an upper opening 11 communicating with the top of the piston. The upper opening 11 includes a first stop 121, a first sealing surface 122, and a first screw-on mating surface 123. The lower part has a lower opening 12. Lubricating grease is stored in the area below the piston and above the lower opening 12. The area above the piston is a gas extrusion chamber. Gas generated by the battery can push the piston downwards, thereby extruding the lubricating grease from the lower opening 12.

[0027] The battery pack 2 includes a housing 21 and at least one battery disposed inside the housing 21. In this embodiment, two lithium batteries (button batteries) are provided. The lower end of the housing 21 has a stepped protrusion that matches the shape of the upper opening 11. The lower part of the stepped protrusion has a small vent hole with a diameter of about 1 mm. The stepped protrusion is provided with a second stop 211 that is elastically engaged with the first stop 121, a second sealing surface 212 that is sealed and engaged with the first sealing surface 122, and a second screw-out mating surface 213 that is engaged with the first screw-out mating surface 123. The upper part of the housing 21 is provided with a screw-out part 214 that is easy to screw.

[0028] The first and second rotating mating surfaces are respectively provided with V-shaped protrusions 124 and V-shaped grooves 24. When rotating the battery pack 2, the battery pack 2 can be quickly removed by relying on the mutual pushing of the V-shaped protrusions 124 and V-shaped grooves 24. An elastic sealing ring 23 is provided between the first and second sealing surfaces.

[0029] When disassembling the battery pack 2, simply rotate the screw part 214 of the battery pack 2 by hand or with a tool, causing the outer shell 21 to rotate. At this time, the tightly fitting V-shaped protrusion 124 and V-shaped groove 24 are offset from each other, and their inclined surfaces abut against each other, gradually lifting the battery pack 2 so that it can gradually move away from the pump cylinder 1. This also disengages the snap connection between the first stop 121 and the second stop 211, allowing the battery pack 2 to be easily removed. Then, press the new battery pack 2 into the pump cylinder 1. When pressing, the V-shaped protrusion 124 and V-shaped groove 24 align. When the first stop 121 and the second stop 211 are engaged by elastic deformation, the installation is complete. Moreover, during this process, the elastic sealing ring 23 located between the first and second sealing surfaces is compressed to achieve a seal. Therefore, the solution of this application can achieve quick disassembly and replacement of the battery pack 2 without disassembling the batteries one by one, and ensures that the outer shell 21 of the battery pack 2 and the pump cylinder 1 still have good sealing performance after replacement.

[0030] At least two V-shaped protrusions 124 and V-shaped grooves 24 are respectively provided on the first and second screw-on mating surfaces, and are evenly distributed circumferentially. This arrangement ensures that the battery pack 2 receives a uniform release force when screwing it on, avoiding problems such as uneven force or tilting that could lead to jamming or difficulty in disassembly. The first stop 121 consists of two or more trapezoidal platforms, each evenly distributed circumferentially. The first stop 121 is an annular platform. The pump cylinder 1 and / or the outer casing 21 are made of plastic. The screwing part 214 is a polygonal boss to facilitate screwing.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A battery pack quick-change electrochemical gas single-point pump, characterized in that, include: The pump cylinder has a piston that slides inside, and an upper opening that communicates with the piston. The upper opening includes a first stop, a first sealing surface, and a first screw-on mating surface. The battery pack includes a housing and at least one battery disposed inside the housing. The lower end of the housing has a stepped protrusion adapted to the shape of the upper opening. The lower part of the stepped protrusion has a small vent hole. The stepped protrusion is provided with a second stop that elastically engages with the first stop, a second sealing surface that seals with the first sealing surface, and a second screw-out mating surface that engages with the first screw-out mating surface. The upper part of the housing is provided with a screwing part that facilitates screwing. The first and second rotating mating surfaces are respectively provided with V-shaped protrusions and V-shaped grooves. When rotating the battery pack, the battery pack can be quickly removed by relying on the mutual pushing of the V-shaped protrusions and V-shaped grooves. An elastic sealing ring is provided between the first and second sealing surfaces.

2. The battery pack quick-change electrochemical gas single-point pump according to claim 1, characterized in that, At least two V-shaped protrusions and V-shaped grooves are provided on the first and second screw-on mating surfaces, and they are evenly distributed along the circumference.

3. The battery pack quick-change electrochemical gas single-point pump according to claim 1, characterized in that, The first barrier consists of two or more trapezoidal platforms, which are evenly distributed along the circumference.

4. The battery pack quick-change electrochemical gas single-point pump according to claim 3, characterized in that, The first platform is a ring-shaped platform.

5. The battery pack quick-change electrochemical gas single-point pump according to any one of claims 1-4, characterized in that, The pump barrel and / or housing are made of plastic.

6. The battery pack quick-change electrochemical gas single-point pump according to any one of claims 1-4, characterized in that, The screwing part is a polygonal boss.

Images