Pump taking device for liquid injection pump

Abstract

The utility model discloses a liquid injection pump taking device which comprises a left base and a right base, the left base and the right base are movably connected, a containing cavity is formed between the left base and the right base, a pump sleeve is installed in the containing cavity, and a limiting rod is arranged between the left base and the right base. The left base and the right base are movably connected, so that the relative position between the left base and the right base can be movably adjusted to adapt to the machining requirements of pump sleeves with different lengths, the limiting rod is arranged between the left base and the right base, and the limiting rod can limit the movable adjustment between the left base and the right base, so that the machining requirements of the pump sleeves with different lengths can be met. A first threaded rod is fixedly arranged on a left base, a second threaded rod is fixedly arranged on a right base, the thread directions of the second threaded rod and the first threaded rod are opposite, and the second threaded rod and the first threaded rod are in synchronous thread fit with a connecting sleeve.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium batteries, and in particular relates to a liquid injection pump and pump extractor. Background Art

[0002] Power soft-pack batteries have the characteristics of high safety, light weight, and high energy, so they are widely used in automotive power batteries. In the assembly process of power soft-pack batteries, the injection of soft-pack batteries is one of the indispensable processes, and the key hardware to realize this process is a high-precision injection pump, in which the precise combination of the high-precision pump sleeve and the pump core in the injection pump can realize the precise control of the injection amount. However, because the seal between the pump sleeve and the pump core is a mechanical seal, the processing accuracy between the two is required to be micron-level, and the matching gap is particularly small. Moreover, both are made of ceramic materials with high hardness and are prone to breakage caused by external forces. When the injection pump is stopped, the combination of the pump sleeve and the pump core needs to be separated, cleaned, and stored. If the sticky electrolyte remaining on the inner wall of the pump sleeve is not cleaned in time, the two will be stuck and cannot be separated smoothly. If the pump core is rotated by external force, the method of fixing the pump sleeve will break the pump core, causing economic losses. In addition, the pump sleeve and the pump core are matched and used, and cannot be used interchangeably with each other. In order to solve this problem, a pump core extractor is designed.

[0003] The existing separation of the pump sleeve and the pump core mainly adopts the method of rotating the pump core with external force and fixing the pump sleeve to force the two to separate. If the two are difficult to separate, there will be a risk of the pump core being broken, thereby causing the risk of the entire pump being unusable. In addition, the existing separator between the pump sleeve and the pump core is only applicable to pump sleeves of a single specification, and cannot be applicable to pump sleeves of different lengths, and has a single adaptability. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model aims to provide a liquid injection pump and a pump removal device.

[0005] The technical solution adopted by the utility model is as follows: it comprises a left base and a right base, the left base and the right base are movably connected, a placement cavity is formed between the left base and the right base, a pump sleeve is installed in the placement cavity, a limit rod is provided between the left base and the right base, one end of the limit rod is fixedly connected to the right base, and the other end is slidably adjustable on the left base, a connecting sleeve is provided between the left base and the right base, the connecting sleeve is used to adjust the relative position between the left base and the right base, an adjusting rod is provided at one end of the left base away from the right base, and the adjusting rod is installed on one side of the left base.

[0006] As a preferred embodiment of the utility model, a limiting hole is provided at one end of the left base close to the right base, one end of the limiting rod is slidably connected to the limiting hole, and a plurality of limiting rods are provided, and the plurality of limiting rods are evenly distributed along one end of the left base.

[0007] As a preferred embodiment of the utility model, a first threaded rod is provided on the left base, one end of the first threaded rod is fixedly connected to the left base, and the other end is threadedly engaged with the connecting sleeve, and a second threaded rod is provided on the right base, one end of the second threaded rod is fixedly connected to the right base, and the other end is threadedly engaged with the connecting sleeve.

[0008] As a preferred embodiment of the present invention, the connecting sleeve is a hollow structure, and the thread directions of the first threaded rod and the second threaded rod are opposite.

[0009] As a preferred embodiment of the utility model, the adjusting rod is threadedly connected to one end of the left base away from the right base, one end of the adjusting rod is provided with a handle, and the other end is provided with a stop block, and the stop block is rotatably connected to the adjusting thread.

[0010] As a preferred embodiment of the utility model, an adjustment hole matched with the diameter of the stop block is formed on the left base, and the stop block can shuttle between the adjustment hole and the placement cavity through the adjustment hole.

[0011] As a preferred embodiment of the utility model, a pump core is provided in the pump sleeve, and the diameter of the stop block is smaller than the diameter of the pump core.

[0012] As a preferred embodiment of the present invention, an end of the right base away from the left base is provided with a through hole, and the through hole is used for the pump core to pass through after being separated from the pump sleeve.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model is a liquid injection pump extractor, which realizes active adjustment of the relative position between the left base and the right base by movably connecting the left base and the right base, so as to adapt to the processing requirements of pump sleeves of different lengths. A limit rod is provided between the left base and the right base, and the limit rod can limit the active adjustment between the left base and the right base. A first threaded rod is fixed on the left base, and a second threaded rod is fixed on the right base. The thread directions of the second threaded rod and the first threaded rod are opposite, and the second threaded rod is synchronously threadedly matched with the connecting sleeve, so that the rotating connecting sleeve can realize the positions of the left base and the right base to move away from or approach each other through the synchronous thread cooperation with the first threaded rod and the second threaded rod, so as to meet the processing requirements of pump sleeves of different lengths. The adjusted right base and left base can realize the separation of the pump sleeve and the pump core in cooperation with the adjusting rod.

[0015] 2. An adjusting rod is arranged at one end of the left base, and a stop block is rotatably connected to one end of the adjusting rod. When the adjusting thread cooperates with the thread of the left base, one end of the stop block contacts the pump core of the pump sleeve, and the other end is rotatably connected to the adjusting rod, thereby avoiding friction between the adjusting rod and the pump core and damaging the pump core. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This utility model Figure 1 Schematic diagram of the enlarged structure at A;

[0019] Figure 3 It is a front sectional structural schematic diagram of the utility model.

[0020] In the figure: 1. left base; 2. right base; 3. adjusting rod; 4. pump sleeve; 5. pump core; 6. adjusting bolt; 11. limiting hole; 12. first threaded rod; 13. adjusting hole; 21. limiting rod; 22. second threaded rod; 23. connecting sleeve; 24. through hole; 31. adjusting thread; 32. stop block; 33. handle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] Combine the following Figure 1-3The specific implementation mode of the utility model is described, a liquid injection pump extractor comprises a left base 1 and a right base 2, the left base 1 and the right base 2 are movably connected, and the relative positions between the left base 1 and the right base 2 can be adjusted by movably connecting the left base 1 and the right base 2, so as to realize the processing of pump sleeves 4 of different lengths, and a placement cavity is formed between the left base 1 and the right base 2, and a pump sleeve 4 is installed in the placement cavity, and a limiting rod 21 is provided between the left base 1 and the right base 2, one end of the limiting rod 21 is fixedly connected to the right base 2, and the other end is slidably adjustable on the left base 1, and a connecting sleeve 23 is provided between the left base 1 and the right base 2, and the limiting rod 21 is used for the left base 1 and the right base 2 The limit during sliding adjustment between them enables only lateral movement between the left base 1 and the right base 2, and the vertical position does not change. The connecting sleeve 23 is used to adjust the relative position between the left base 1 and the right base 2, so as to achieve the mutual approach or distance between the positions of the left base 1 and the right base 2 to adapt to the processing of different lengths of the pump sleeve 4. An adjusting rod 3 is provided at the end of the left base 1 away from the right base 2. The adjusting rod 3 is installed on one side of the left base 1. By rotating the adjusting rod 3, the circumferential surface of the adjusting rod 3 is threadedly matched with the left base 1, thereby realizing the telescopic movement of the other end in the placement cavity. One end of the adjusting rod 3 is in contact with the pump core 5, and under the push of the threaded matching of the adjusting rod 3 and the left base 1, the separation between the pump core 5 and the pump sleeve 4 is realized.

[0024] Advantageously, a limiting hole 11 is provided at one end of the left base 1 close to the right base 2, and one end of the limiting rod 21 is slidably connected to the limiting hole 11. A plurality of limiting rods 21 are provided, and the plurality of limiting rods 21 are evenly distributed along one end of the left base 1. By fixing a plurality of limiting rods 21 at one end of the right base 2 and making each limiting rod 21 slideably fit in the corresponding limiting hole 11 on the left base 1, the position adjustment between the left base 1 and the right base 2 does not occur vertical movement.

[0025] Advantageously, the left base 1 is provided with a first threaded rod 12, one end of which is fixedly connected to the left base 1, and the other end is threadedly engaged with the connecting sleeve 23; the right base 2 is provided with a second threaded rod 22, one end of which is fixedly connected to the right base 2, and the other end is threadedly engaged with the connecting sleeve 23, and is synchronously threadedly connected to the first threaded rod 12 and the second threaded rod 22 inside the connecting sleeve 23.

[0026] Advantageously, the connecting sleeve 23 is a hollow structure, and the thread directions of the first threaded rod 12 and the second threaded rod 22 are opposite, so that when the connecting sleeve 23 is rotated, the first threaded rod 12 and the second threaded rod 22 are synchronously threadedly engaged with the connecting sleeve 23 to adjust the relative position between the left base 1 and the right base 2.

[0027] Advantageously, the adjusting rod 3 is threadedly connected to one end of the left base 1 away from the right base 2. A handle 33 is provided at one end of the adjusting rod 3, and a stop block 32 is provided at the other end. The stop block 32 is rotatably connected to the adjusting thread 31. The handle 33 facilitates the application of force when driving the adjusting rod 3 to rotate. By providing the stop block 32, when the stop block 32 contacts the pump core 5, it can be avoided that when the adjusting rod 3 is rotated, one end of the adjusting rod 3 and the pump core 5 are rubbed against each other to damage the integrity of the pump core 5.

[0028] Advantageously, an adjustment hole 13 matched with the diameter of the stop block 32 is formed on the left base 1, and the stop block 32 can pass through the adjustment hole 13 and the placement cavity.

[0029] Advantageously, a pump core 5 is disposed in the pump sleeve 4 , and the diameter of the stopper 32 is smaller than the diameter of the pump core 5 , so as to facilitate the separation between the pump core 5 and the pump sleeve 4 .

[0030] Advantageously, an end of the right base 2 away from the left base 1 is provided with a through hole 24 , and the through hole 24 is used for the pump core 5 to pass through after being separated from the pump sleeve 4 .

[0031] The working principle of this utility model:

[0032] Before placing the pump sleeve 4, the position between the left base 1 and the right base 2 is adjusted according to the length of the pump sleeve 4, so that the position between the left base 1 and the right base 2 matches the length of the pump sleeve 4, wherein the first threaded rod 12 and the second threaded rod 22 at both ends of the connecting sleeve 23 are synchronously threadedly engaged with the connecting sleeve 23 by rotating the connecting sleeve 23. Since one end of the first threaded rod 12 and the second threaded rod 22 are respectively fixedly connected to the left base 1 and the right base 2, and the thread directions of the first threaded rod 12 and the second threaded rod 22 are opposite, the rotating connecting sleeve 23 forces the left base 1 and the right base 2 to move closer to or farther from each other, thereby realizing the adjustment of the position between the left base 1 and the right base 2;

[0033] Among them, a plurality of limit rods 21 are connected between the left base 1 and the right base 2, one end of each limit rod 21 is fixedly connected to the right base 2, and the other end slides in a limit hole 11 provided on the left base 1, and the limit rod 21 can prevent the sliding adjustment between the left base 1 and the right base 2 from being offset in the vertical direction;

[0034] Turn the handle 33 to make the adjusting rod 3 and the adjusting bolt threadedly engage, so that one end of the adjusting rod 3 passes through the left base 1 and extends into the placement cavity formed between the left base 1 and the right base 2, and the stop block 32 contacts the pump core 5 in the pump sleeve 4. Under the push of the threaded engagement of the adjusting rod 3, one end of the stop block 32 is rotatably connected to the adjusting rod 3, and the other end pushes the pump core 5 to be extruded in the pump sleeve 4, so as to realize the separation between the pump core 5 and the pump sleeve 4. The separated pump core 5 is squeezed out from the outlet hole 24 to avoid damage to the pump core 5. If it is stuck particularly tightly during the process, it is recommended to soak it in hot water for 15-30 minutes first.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A liquid injection pump extractor, characterized in that: It includes a left base and a right base, the left base and the right base are movably connected, a placement cavity is formed between the left base and the right base, a pump sleeve is installed in the placement cavity, a limit rod is provided between the left base and the right base, one end of the limit rod is fixedly connected to the right base, and the other end is slidably adjustable on the left base, a connecting sleeve is provided between the left base and the right base, the connecting sleeve is used to adjust the relative position between the left base and the right base, an adjusting rod is provided at one end of the left base away from the right base, and the adjusting rod is installed on one side of the left base.

2. The liquid injection pump extractor according to claim 1, characterized in that: A limiting hole is provided at one end of the left base close to the right base, one end of the limiting rod is slidably connected in the limiting hole, a plurality of limiting rods are provided, and the plurality of limiting rods are evenly distributed along one end of the left base.

3. The liquid injection pump extractor according to claim 2, characterized in that: The left base is provided with a first threaded rod, one end of which is fixedly connected to the left base, and the other end is threadedly matched with the connecting sleeve. The right base is provided with a second threaded rod, one end of which is fixedly connected to the right base, and the other end is threadedly matched with the connecting sleeve.

4. The liquid injection pump extractor according to claim 3, characterized in that: The connecting sleeve is a hollow structure, and the thread directions of the first threaded rod and the second threaded rod are opposite.

5. The liquid injection pump extractor according to claim 1, characterized in that: The adjusting rod is threadedly connected to one end of the left base away from the right base. A handle is provided at one end of the adjusting rod, and a stop block is provided at the other end. The stop block is rotatably connected to the adjusting thread.

6. The liquid injection pump extractor according to claim 5, characterized in that: An adjustment hole matched with the diameter of the stop block is formed on the left base, and the stop block can shuttle between the adjustment hole and the placement cavity through the adjustment hole.

7. The liquid injection pump extractor according to claim 6, characterized in that: A pump core is arranged in the pump sleeve, and the diameter of the stop block is smaller than the diameter of the pump core.

8. The liquid injection pump extractor according to claim 1, characterized in that: An exit hole is provided at one end of the right base away from the left base, and the exit hole is used for the pump core to pass through after being separated from the pump sleeve.

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