阅读说明：本技术 快装拆式电池测试针 (Quick-assembling-disassembling type battery testing needle ) 是由 虞新剑 于 2019-10-24 设计创作，主要内容包括：本发明公开一种装于外部支架上的快装拆式电池测试针,包括探针、连接套筒、轴向抵压环、第一弹性件及第二弹性件。外部支架开设有嵌接缺槽,连接套筒嵌入嵌接缺槽并具有轴向阻挡结构,连接套筒还沿探针的轴向伸出外部支架；探针可滑动地套装于连接套筒内,探针的第一端沿探针之轴向的正向伸出连接套筒,探针的第二端沿探针之轴向的反向伸出连接套筒；轴向抵压环位于外部支架外并可滑动地套装于连接套筒上；第一弹性件位于外部支架外,第一弹性件设于连接套筒与轴向抵压环之间,轴向抵压环在第一弹性件的作用下与轴向阻挡结构共同夹持外部支架；第二弹性件设于探针的第一端与连接套筒之间。本发明的快装拆式电池测试针具有装拆快速的优点。(The invention discloses a quick-assembly and disassembly type battery test needle arranged on an external support, which comprises a probe, a connecting sleeve, an axial compression ring, a first elastic piece and a second elastic piece. The outer support is provided with an embedding notch, the connecting sleeve is embedded into the embedding notch and has an axial blocking structure, and the connecting sleeve also extends out of the outer support along the axial direction of the probe; the probe is slidably sleeved in the connecting sleeve, a first end of the probe extends out of the connecting sleeve along the axial forward direction of the probe, and a second end of the probe extends out of the connecting sleeve along the axial reverse direction of the probe; the axial pressing ring is positioned outside the external bracket and is slidably sleeved on the connecting sleeve; the first elastic piece is positioned outside the external support, the first elastic piece is arranged between the connecting sleeve and the axial pressing ring, and the axial pressing ring and the axial blocking structure clamp the external support together under the action of the first elastic piece; the second elastic piece is arranged between the first end of the probe and the connecting sleeve. The quick-assembly and disassembly type battery test needle has the advantage of quick assembly and disassembly.)

1. A quick-assembly-disassembly type battery testing needle is installed on an external support and is characterized by comprising a probe, a connecting sleeve, an axial abutting ring, a first elastic piece and a second elastic piece, wherein the external support is provided with an embedding notch for the connecting sleeve to be embedded into the external support along the radial direction of the probe, the connecting sleeve is embedded into the embedding notch and is provided with an axial blocking structure, the connecting sleeve further extends out of the external support along the axial direction of the probe, the probe is slidably sleeved in the connecting sleeve, a first end of the probe extends out of the connecting sleeve along the axial forward direction of the probe, a second end of the probe extends out of the connecting sleeve along the axial reverse direction of the probe, the axial abutting ring is positioned outside the external support and slidably sleeved on the connecting sleeve, the first elastic piece is located outside the outer support, the first elastic piece is located the connecting sleeve with the axial is to between the clamping ring, the axial is to the clamping ring under the effect of first elastic piece with the common centre gripping of axial barrier structure the outer support, the second elastic piece is located the first end of probe with between the connecting sleeve.

2. The quick-assembly and disassembly type battery test needle as claimed in claim 1, wherein one of the connecting sleeve and the external bracket is provided with a positioning protrusion, and the other of the connecting sleeve and the external bracket is provided with a positioning recess in positioning fit with the positioning protrusion, and the positioning protrusion blocks the connecting sleeve from rotating relative to the external bracket when being matched with the positioning recess.

3. The quick-assembly and disassembly type battery testing needle as claimed in claim 1, wherein the connection sleeve comprises an outer connection sleeve embedded in the embedding groove and an inner connection sleeve slidably sleeved in the outer connection sleeve along the axial direction of the probe, the inner connection sleeve further extends out of the outer connection sleeve and the outer support along the opposite direction of the axial direction of the probe, the probe slidably penetrates in the inner connection sleeve along the axial direction of the probe, the first end of the probe extends out of the outer connection sleeve, the second end of the probe extends out of the inner connection sleeve, the first elastic member is arranged between the inner connection sleeve and the axial pressing ring, the axial blocking structure is formed on the outer connection sleeve, the second elastic member is arranged between the first end of the probe and the inner connection sleeve, or, the second elastic piece is arranged between the first end of the probe and the outer connecting sleeve.

4. The quick-assembly and disassembly type battery test needle as claimed in claim 3, wherein one of the outer connecting sleeve and the outer bracket is provided with a positioning protrusion, and the other of the outer connecting sleeve and the outer bracket is provided with a positioning recess which is matched with the positioning protrusion in a positioning way, and the positioning protrusion blocks the outer connecting sleeve from rotating relative to the outer bracket when being matched with the positioning recess.

5. The quick-assembly and disassembly type battery test needle as claimed in claim 2 or 4, wherein the protruding direction of the positioning protrusion is arranged along the axial direction of the probe, and the first elastic member constantly has a tendency of driving the positioning protrusion to automatically block into the positioning recess along the axial direction of the probe.

6. The quick-assembly and disassembly type battery test needle as claimed in claim 5, wherein the positioning protrusion is a cylindrical structure, and the positioning recess is a blind hole or a through hole.

7. The quick-assembly and disassembly type battery testing needle as claimed in claim 3, wherein the outer connecting sleeve is provided with a first detecting channel and a second detecting channel which are arranged along the axial direction of the probe and have different depths, the first detecting channel and the second detecting channel are communicated with each other at one end adjacent to the second elastic member and are spaced apart from each other at the other end away from the second elastic member, the inner connecting sleeve is provided with a positioning rotation-preventing block, and the positioning rotation-limiting block automatically slides into the first detecting channel or the second detecting channel aligned with the positioning rotation-limiting block under the action of the first elastic member.

8. The quick-assembly and disassembly type battery test pin as claimed in claim 7, wherein the first and second detection channels are respectively arranged in a circle at intervals in the circumferential direction of the outer connecting sleeve, and the positioning rotation-limiting blocks are correspondingly arranged in a circle in the circumferential direction of the inner connecting sleeve.

9. The quick-assembly and disassembly type battery test needle as claimed in claim 3, wherein the inner connecting sleeve has a protruding retaining ring protruding outward in a radial direction of the probe, the first elastic member is sleeved on the inner connecting sleeve and elastically abuts against the protruding retaining ring and the axial retaining ring, the second elastic member is sleeved on the first end of the probe, and the second elastic member elastically abuts against the inner connecting sleeve and the first end of the probe, or the second elastic member elastically abuts against the axial retaining structure and the first end of the probe.

10. The quick-assembly and disassembly battery test pin as in claim 1, wherein the axial blocking structure protrudes from the connecting sleeve in a radial direction of the probe, and the axial blocking structure is located outside the outer branch portion and in abutting engagement with the outer support.

Technical Field

The invention relates to the field of battery testing, in particular to a quick-assembly and disassembly type battery testing needle.

Background

As is well known, batteries, especially lithium batteries, are widely used in electronic products or new energy vehicles (such as, but not limited to, new energy automobiles, electric bicycles, electric motorcycles, or electric scooters) to supply power to the electronic products or new energy vehicles by means of the batteries so as to meet the power requirements required by the electronic products or new energy vehicles during operation.

Before the battery is put on the market, a production enterprise often performs corresponding tests on various performance parameters in the battery, such as current tests, voltage tests or temperature tests on the battery; in lithium battery formation, in particular, for convenience of connection, a test pin is usually connected to a corresponding electrode of the lithium battery to test the change of current, voltage or temperature of the lithium battery.

However, in the conventional lithium battery test pin disclosed in, for example, chinese patent No. 201821338917.2, when the connection sleeve 9 is inserted through the external bracket along the axial direction of the connection sleeve 9, the connection sleeve is screwed into the external bracket by passing through the screw hole 91 of the connection sleeve 9; therefore, when the lithium battery test pin is mounted on the external frame or removed from the external frame, the upper nut 8a, the lower nut 8b and the connector 8c need to be removed first, so as to allow the needle bar 1 and the corresponding components (such as the reference numerals 2, 3, 4, 6, 10, etc.) in the needle bar 1 to be removed from the connecting sleeve 9 or to be installed in the connecting sleeve 9 along the axial direction of the connecting sleeve 9 (see fig. 2 of chinese patent No. 201821338917.2); and because the connecting sleeve 9 is penetrated in the external support along the axial direction and locked by screws, the assembly and disassembly operation of the traditional lithium battery testing needle on the external support is relatively troublesome, the assembly is relatively time-consuming, and the subsequent maintenance is troublesome.

Therefore, there is a need for a quick-assembly/disassembly battery testing pin that can be quickly assembled and disassembled to improve the operation efficiency and the subsequent maintenance efficiency and reduce the use of parts to overcome the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to provide a quick-assembly and disassembly type battery testing needle which is quick to assemble and disassemble so as to improve the operation efficiency and the subsequent maintenance efficiency and reduce the use of parts.

In order to achieve the above object, the present invention provides a quick-assembly/disassembly battery testing pin mounted on an external support, including a probe, a connecting sleeve, an axial pressing ring, a first elastic member and a second elastic member. The outer support is provided with an embedding notch for the connecting sleeve to be embedded into the outer support along the radial direction of the probe, the connecting sleeve is embedded into the embedding notch and provided with an axial blocking structure, the connecting sleeve further extends out of the outer support along the axial direction of the probe, the probe is slidably sleeved in the connecting sleeve, a first end of the probe extends out of the connecting sleeve along the axial forward direction of the probe, a second end of the probe extends out of the connecting sleeve along the axial reverse direction of the probe, the axial abutting ring is positioned outside the outer support and slidably sleeved on the connecting sleeve, the first elastic piece is positioned outside the outer support, the first elastic piece is arranged between the connecting sleeve and the axial abutting ring, and the axial abutting ring and the axial blocking structure clamp the outer support together under the action of the first elastic piece, the second elastic piece is arranged between the first end of the probe and the connecting sleeve.

Preferably, one of the connecting sleeve and the outer bracket is provided with a positioning protrusion, the other of the connecting sleeve and the outer bracket is provided with a positioning recess in positioning fit with the positioning protrusion, and the positioning protrusion blocks the connecting sleeve from rotating relative to the outer bracket when being matched with the positioning recess.

Preferably, the connecting sleeve comprises an outer connecting sleeve embedded in the scarfing groove and an inner connecting sleeve slidably sleeved in the outer connecting sleeve along the axial direction of the probe, the inner connecting sleeve also extends out of the outer connecting sleeve and the outer bracket along the opposite direction of the axial direction of the probe, the probe is slidably penetrated in the inner connecting sleeve along the axial direction of the probe, and the first end of the probe extends out of the outer connecting sleeve, the second end of the probe extends out of the inner connecting sleeve, the first elastic piece is arranged between the inner connecting sleeve and the axial pressing ring, the axial blocking structure is formed on the outer connecting sleeve, the second elastic piece is arranged between the first end of the probe and the inner connecting sleeve, or the second elastic piece is arranged between the first end of the probe and the outer connecting sleeve.

Preferably, one of the outer connecting sleeve and the outer support is provided with a positioning protrusion, the other of the outer connecting sleeve and the outer support is provided with a positioning recess in positioning fit with the positioning protrusion, and the positioning protrusion blocks the outer connecting sleeve from rotating relative to the outer support when being matched with the positioning recess.

Preferably, the protruding direction of the positioning protrusion is arranged along the axial direction of the probe, and the first elastic member constantly has a tendency of driving the positioning protrusion to be automatically clamped into the positioning recess along the axial direction of the probe.

Preferably, the positioning protrusion is a cylindrical structure, and the positioning recess is a blind hole or a through hole.

Preferably, the outer connecting sleeve is provided with a first detection channel and a second detection channel which are arranged along the axial direction of the probe and have different depths, the first detection channel and the second detection channel are communicated with each other at one end close to the second elastic piece and are spaced apart from each other at the other end far away from the second elastic piece, the inner connecting sleeve is provided with a positioning rotation-preventing block, and the positioning rotation-limiting block automatically slides into the first detection channel or the second detection channel aligned with the positioning rotation-limiting block under the action of the first elastic piece.

Preferably, the first detection channel and the second detection channel are respectively arranged in a circle at intervals in the circumferential direction of the outer connecting sleeve, and the positioning rotation limiting blocks are correspondingly arranged in a circle in the circumferential direction of the inner connecting sleeve.

Preferably, the inner connecting sleeve has a retaining convex ring protruding outward in the radial direction of the probe, the first elastic member is sleeved on the inner connecting sleeve and elastically abuts against the retaining convex ring and the axial retaining ring, the second elastic member is sleeved on the first end of the probe, the second elastic member elastically abuts against the inner connecting sleeve and the first end of the probe, or the second elastic member elastically abuts against the axial retaining structure and the first end of the probe.

Preferably, the axial blocking structure protrudes from the connecting sleeve along a radial direction of the probe, and the axial blocking structure is located outside the outer branch portion and is in abutting fit with the outer support.

Compared with the prior art, the outer support is provided with the scarf joint notch for the connecting sleeve to be embedded into the outer support along the radial direction of the probe, the connecting sleeve is embedded into the scarf joint notch and is provided with the axial blocking structure, the axial pressing ring is positioned outside the outer support and is sleeved on the connecting sleeve in a sliding manner, the first elastic piece is positioned outside the outer support and is arranged between the connecting sleeve and the axial pressing ring, and the axial pressing ring and the axial blocking structure clamp the outer support together under the action of the first elastic piece; therefore, when the quick-assembly and disassembly type battery test needle needs to be disassembled from the external support, an operator firstly moves the axial pressing ring and the axial blocking structure along the direction of expanding the distance between the axial pressing ring and the axial blocking structure, so that the axial pressing ring and the axial blocking structure are loosened to clamp the external support together, and the first elastic piece is in elastic deformation at the moment to provide a resetting force; then, the operator keeps the original operation state and makes the connecting sleeve slide out of the scarf joint notch of the external bracket along the radial direction of the probe, thereby realizing the purpose that the quick-assembly-disassembly type battery testing needle is quickly disassembled from the external bracket; when the quick-assembly and disassembly type battery testing needle is assembled on an external support, an operator moves the axial pressing ring and the axial blocking structure along the direction of expanding the distance between the axial pressing ring and the axial blocking structure until the axial pressing ring and the axial blocking structure are positioned at the position of loosening and clamping the external support, then the operator removes the position of keeping the original operating state, the connecting sleeve is embedded in the notch along the radial direction of the probe, and then the axial pressing ring is loosened, so that the axial pressing ring and the axial blocking structure clamp the external support together under the action of the elastic force of the first elastic piece, and the purpose of quickly assembling the quick-assembly and disassembly type battery testing needle and the external support is achieved. Therefore, the quick-assembly and quick-disassembly type battery test needle can realize quick assembly and disassembly so as to improve the operation efficiency and the subsequent maintenance efficiency and reduce the number of parts (such as screws) used.

Drawings

Fig. 1 is a schematic perspective view of the quick-assembly/disassembly battery test pin of the present invention after being installed on an external bracket.

Fig. 2 is a schematic perspective view of the quick-assembly/disassembly battery testing pin shown in fig. 1 after being separated from an external bracket.

Fig. 3 is a schematic plan view of the battery testing pin shown in fig. 1 projected in the direction indicated by the arrow a.

Fig. 4 is a schematic view of the internal structure of fig. 3 taken along the line C-C.

Fig. 5 is a schematic perspective view of the inner connecting sleeve of the quick-assembly/disassembly battery testing needle when the positioning anti-rotation block is slidably disposed in the first detection channel of the outer connecting sleeve.

FIG. 6 is a perspective view of the inner coupling sleeve shown in FIG. 5 shown separated from the outer coupling sleeve.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 4, the quick-assembly/disassembly battery testing pin 100 of the present invention is mounted on an external bracket 200, and the external bracket 200 provides a supporting and fixing function for the quick-assembly/disassembly battery testing pin 100 of the present invention.

The quick-assembly/disassembly type battery test needle 100 of the present invention includes a probe 10, a connecting sleeve 20, an axial pressing ring 30, a first elastic member 40, and a second elastic member 50. The outer holder 200 is provided with an engagement notch 210 for the connection sleeve 20 to be inserted into the outer holder 200 along a radial direction of the probe 10 (for example, a direction indicated by an arrow B in fig. 1 and 2), the connection sleeve 20 is inserted into the engagement notch 210 and has an axial blocking structure 21, preferably, the axial blocking structure 21 protrudes out of the connection sleeve 20 along the radial direction of the probe 10, and the axial blocking structure 21 is located outside the outer branch 200 and is in abutting engagement with the outer holder 200 to block the connection sleeve 20 from sliding relative to the outer holder 200 along the axial direction of the probe 10 from a single direction; the connecting sleeve 20 also extends out of the outer holder 200 in the axial direction of the probe 10 (i.e., the direction indicated by the arrow a and the opposite direction). The probe 10 is slidably fitted in the coupling sleeve 20, a first end of the probe 10 extends out of the coupling sleeve 20 in a forward direction (which may be referred to as a downward axial direction) of an axial direction of the probe 10, and a second end of the probe 10 extends out of the coupling sleeve 20 in a reverse direction (which may be referred to as an upward axial direction) of the axial direction of the probe 10, so that the first end and the second end of the probe 10 each extend out of the coupling sleeve 20. The axial pressing ring 30 is located outside the outer holder 200 and slidably sleeved on the connecting sleeve 20, so that the axial pressing ring 30 can slide on the connecting sleeve 20 along the axial direction of the probe 10. The first elastic member 40 is located outside the outer bracket 200, and the first elastic member 40 is disposed between the connecting sleeve 20 and the axial pressing ring 30. The second elastic element 50 is disposed between the first end of the probe 10 and the connection sleeve 20, so as to provide a restoring elastic force for the telescopic sliding of the probe 10 on the connection sleeve 20 by means of the second elastic element 50. Specifically, in order to enable the quick-assembly and quick-disassembly type battery test needle 100 and the external support 100 to be quickly positioned and reliably installed, the connecting sleeve 20 is provided with the positioning protrusion 22, the external support 200 is provided with the positioning recess 220 in positioning fit with the positioning protrusion 22, the positioning protrusion 22 blocks the connecting sleeve 20 from being automatically clamped into the positioning recess 220 relative to the external support 200 when being matched with the positioning recess 220, preferably, the protrusion direction of the positioning protrusion 22 is arranged along the axial direction of the probe 10, and the purpose of designing in such a way is that the first elastic piece 40 always has a tendency of driving the positioning protrusion 22 to be automatically clamped into the positioning recess 220 along the axial direction of the probe 10, so that when the positioning protrusion 22 is aligned with the positioning recess 220, and under the action of the first elastic piece 40, the purpose of quickly positioning the connecting sleeve 20 and the external support 200 can be realized; for example, the positioning protrusion 22 is a cylindrical structure, and the positioning recess 220 is a blind hole or a through hole, so the disclosure is not limited thereto. It is understood that, according to the actual requirement, the positioning protrusion 22 can be disposed by the outer frame 200, and the positioning recess 220 is disposed by the connecting sleeve 20, so the above is not limited; meanwhile, when the axial blocking structure 21 is configured to be located outside the outer bracket 200, the axial blocking structure 21 and the axial pressing ring 30 are disposed on opposite sides of the outer bracket 200, for example, fig. 4 shows that the axial blocking structure 21 is located at the bottom of the outer bracket 200 and the axial pressing ring 30 is located at the top of the outer bracket 200, so that the outer bracket 200 is clamped between the axial blocking structure 21 and the axial pressing ring 300; when the axial blocking structure 21 is embedded in the outer support 200, the axial blocking structure 21 can be made into a T-shaped block structure, and the outer support 200 is correspondingly provided with a T-shaped groove, so that after the T-shaped block structure is embedded in the T-shaped groove, the T-shaped block structure can block the connecting sleeve 20 from sliding relative to the outer support 200 along the axial direction of the probe 10, but not limited thereto. More specifically, the following:

as shown in fig. 1 to 2 and 4 to 6, in order to flexibly switch the position state of the probe 10, the coupling sleeve 20 includes an outer coupling sleeve 20a fitted into the notch 210 and an inner coupling sleeve 20b slidably fitted into the outer coupling sleeve 20a in the axial direction of the probe 10. When the connection sleeve 20 comprises an outer connection sleeve 20a and an inner connection sleeve 20b, the axial stop structure 21 is formed on the outer connection sleeve 20a, and the inner connection sleeve 20b further extends out of the outer connection sleeve 20a and the outer support 200 along the opposite direction of the axial direction of the probe 10 (i.e. the direction indicated by the arrow a is opposite, which may be referred to as an upward axial direction), so that the axial stop ring 30 is slid on the inner connection sleeve 20 b. The probe 10 is slidably arranged in the inner connecting sleeve 20b along the axial direction of the probe 10, and the inner connecting sleeve 20b provides a supporting function for the probe 10; and the first end of the probe 10 extends out of the outer connection sleeve 20a, and the second end of the probe 10 extends out of the inner connection sleeve 20b, so that the first end of the probe 10 is electrically abutted to the corresponding electrode of the battery, and the second end of the probe 10 is electrically mounted to an external testing device. The first elastic member 40 is disposed between the inner connecting sleeve 20b and the axial pressing ring 30, and the axial pressing ring 30 and the axial blocking structure 21 clamp the outer bracket 200 together under the action of the first elastic member 40. The second elastic element 50 is disposed between the first end of the probe 10 and the inner connecting sleeve 20b, and it is understood that the second elastic element 50 is disposed between the first end of the probe 10 and the outer connecting sleeve 20a according to actual requirements, and the second elastic element 50 can provide a restoring elastic force for the probe 10, so the invention is not limited thereto. Specifically, as shown in fig. 5 and 6, in order to flexibly switch the detection channels of the quick-assembly/disassembly type battery test pin 100 of the present invention, the inner connection sleeve 20b is provided with a positioning rotation-preventing block 25, the outer connection sleeve 20a is provided with a first detection channel 23 and a second detection channel 24 which are arranged along the axial direction of the probe pin 10 and have different depths, the first detection channel 23 and the second detection channel 24 are communicated with each other at one end adjacent to the second elastic member 50, and the first detection channel 23 and the second detection channel 24 are spaced apart from each other at the other end away from the second elastic member 50, as shown in fig. 6, the purpose of the design is to allow the inner connection sleeve 20b to rotate relative to the outer connection sleeve 20a only when the positioning rotation-preventing block 25 slides to the position where the first detection channel 23 and the second detection channel 24 are adjacent to one end of the second elastic member 50, so that the positioning rotation-preventing block 25 on the inner connection sleeve 20b is rotated relative to the first detection channel 23 or the second detection channel 24 in the axial direction of the probe pin 10 The channels 24 are aligned, and the positioning rotation limiting block 25 automatically slides into the first detection channel 23 or the second detection channel 24 aligned with the positioning rotation limiting block 25 under the action of the first elastic piece 40, so that the purpose of quickly switching the detection channels of the quick-assembly and disassembly type battery test needle 100 is realized, and different battery test requirements are met; preferably, the first detecting channel 23 and the second detecting channel 24 are respectively arranged in a circle at intervals in the circumferential direction of the outer connecting sleeve 20a, and the positioning rotation limiting blocks 25 are correspondingly arranged in a circle in the circumferential direction of the inner connecting sleeve 20b to increase the reliability of the connection between the inner connecting sleeve 20b and the outer connecting sleeve 20a, but not limited thereto. It is understood that, when the connection sleeve 20 is designed to include the outer connection sleeve 20a and the inner connection sleeve 20b, the above-mentioned positioning protrusion 22 provided by the connection sleeve 20 is located at the outer connection sleeve 20a, specifically, at the axial stopping structure 21 of the outer connection sleeve 20a, and thus, is not limited to the above-mentioned example.

As shown in fig. 1, 2 and 4, in order to make the installation of the first elastic member 40 and the second elastic member 50 more reliable, the inner connecting sleeve 20b has a protruding ring 26 protruding outward in the radial direction of the probe 10, the first elastic member 40 is sleeved on the inner connecting sleeve 20b and elastically abuts against the protruding ring 26 and the axial pressing ring 30, the second elastic member 50 is sleeved on the first end of the probe 10, and the second elastic member 50 also elastically abuts against the inner connecting sleeve 20b and the first end of the probe 10; of course, the second elastic element 50 also elastically abuts against the axial blocking structure 21 and the first end of the probe 10 according to actual requirements, so the invention is not limited thereto. Specifically, as shown in fig. 4 to 6, in order to facilitate the assembly and disassembly of the probe 10, the inner connecting sleeve 20b and the outer connecting sleeve 20a, the resisting convex ring 26 and the inner connecting sleeve 20b are made into a split structure, and a separating groove is opened at an end (e.g., an upper end in fig. 4) of the inner connecting sleeve 20b far from the outer connecting sleeve 20a, so that the inner connecting sleeve 20b is separated into a corresponding number of cantilever arms 28, and the cantilever arms 28 are protruded with a resisting boss 27, so that the resisting convex ring 26 is sleeved on the cantilever arms 28 by the deformation of the cantilever arms 28 toward the center of the inner connecting sleeve 20b, and the resisting convex ring 26 sleeved on the cantilever arms 28 is prevented from accidentally falling off the cantilever arms 28 under the blockage of the resisting boss 27, but not limited thereto. For example, the first elastic member 40 and the second elastic member 50 are each a compression spring, but not limited thereto.

As shown in fig. 4, the probe 10 includes a needle shaft 11, a needle shaft sleeve 12, a first insulating fixed separation sleeve 13, a second insulating fixed separation sleeve 14, a compression spring 15, an insulating sliding separation sleeve 16, an insulating surrounding sleeve 17, a voltage collecting base 18, a current collecting base 19, a first nut 111, a washer 112, and a second nut 113. The needle shaft sleeve 12 is sleeved on the needle shaft 11, the first insulating fixed separation sleeve 13, the second insulating fixed separation sleeve 14 and the insulating sliding separation sleeve 16 are sequentially sleeved on the needle shaft 11 at intervals along the axial forward direction of the probe 10, and the first insulating fixed separation sleeve 13 and the second insulating fixed separation sleeve 14 are also fixedly sleeved in the needle shaft sleeve 12, so that the first insulating fixed separation sleeve 13 and the second insulating fixed separation sleeve 14 cannot slide relative to the needle shaft sleeve 12; while the insulating sliding spacer 16 is also fixed with the needle shaft 11 so that they are fixed together; therefore, the needle shaft 11 and the needle shaft sleeve 12 are insulated and separated under the action of the first insulating fixed separation sleeve 13, the second insulating fixed separation sleeve 14 and the insulating sliding separation sleeve 16. The compression spring 15 is sleeved on the needle shaft 11 and is pressed between the insulating sliding separation sleeve 16 and the second insulating fixed separation sleeve 14, the current collection seat 19 is fixed at the needle shaft sleeve 12, and the second elastic element 50 described above is pressed between the inner connecting sleeve 20b and the current collection seat 19; the voltage acquisition seat 18 is positioned below the current acquisition seat 19 and is arranged at the needle shaft 11, the insulating surrounding sleeve 17 is sleeved on the needle shaft 11 and surrounds the top surface and the side surface of the voltage acquisition seat 18, and the voltage acquisition seat 18 and the current acquisition seat 19 play a role in insulating and isolating. The external pole piece 60 is locked with the needle hub 12 by the first nut 111, the washer 113 and the second nut 112, which is shown in fig. 4, and therefore not limited thereto.

Compared with the prior art, the outer support 200 is provided with the scarf joint notch 210 for the connecting sleeve 20 to be embedded into the outer support 200 along the radial direction of the probe 10, the connecting sleeve 20 is embedded into the scarf joint notch 210 and is provided with the axial blocking structure 21, the axial pressing ring 30 is positioned outside the outer support 200 and is slidably sleeved on the connecting sleeve 20, the first elastic piece 40 is positioned outside the outer support 200, the first elastic piece 40 is arranged between the connecting sleeve 20 and the axial pressing ring 30, and the axial pressing ring 30 and the axial blocking structure 21 clamp the outer support 200 together under the action of the first elastic piece 40; therefore, when the quick-assembly/disassembly type battery testing needle 100 of the present invention needs to be disassembled from the external bracket 200, an operator first moves the axial pressing ring 30 and the axial blocking structure 21 in a direction of expanding the distance therebetween, so that the axial pressing ring 30 and the axial blocking structure 21 release the common clamping effect on the external bracket 200, and the first elastic member 40 is elastically deformed at this time to provide a restoring force; then, the operator slides the connecting sleeve 20 out of the scarf joint notch 210 of the outer bracket 200 along the radial direction of the probe 10 in addition to keeping the original operating state, so as to achieve the purpose of quickly detaching the quick-assembly-disassembly type battery test needle 100 from the outer bracket 200; when the quick-assembly and quick-disassembly battery test needle 100 is assembled on the external support 200, an operator moves the axial pressing ring 30 and the axial blocking structure 21 in the direction of expanding the distance between the axial pressing ring 30 and the axial blocking structure 21 until the axial pressing ring 30 and the axial blocking structure 21 are positioned at the position of releasing and clamping the external support 200, then the operator removes the position of keeping the original operation state, and then the connecting sleeve 20 is embedded into the embedding notch 210 along the radial direction of the probe 10, and then the axial pressing ring 30 is released, so that the axial pressing ring 30 and the axial blocking structure 21 clamp the external support 200 together under the elastic force of the first elastic piece 40, and the purpose of quickly assembling the quick-assembly and quick-disassembly battery test needle 100 and the external support 200 is achieved. Therefore, the quick-assembly and quick-disassembly type battery test pin 100 of the present invention can be quickly assembled and disassembled to improve the operation efficiency and the subsequent maintenance efficiency and reduce the number of parts (such as screws) used.

The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.