Conducting needle used for automobile wire harness detection

Abstract

The utility model discloses a conduction needle used for automobile wire harness detection, and relates to the technical field of wire harness detection, the conduction needle comprises a conduction needle assembly, the top of the conduction needle assembly is fixedly connected with a limiting ratchet column, and the surface of the conduction needle assembly is movably sleeved with a first connecting ring. According to the conduction needle used for automobile wire harness detection, a new limiting ratchet column is plugged into a second connecting ring, so that the limiting ratchet column is meshed with a tooth groove, pre-fixing of a conduction needle assembly is completed, at the moment, an external thread ring is aligned with an inner cavity of an internal thread ring, rotation is conducted, and the conduction needle assembly is fixed. Due to the fact that the first one-way gear ring and the second one-way gear ring are in a one-way meshing state, the connecting plate can rotate normally, when the external thread ring is loosened, due to the meshing limiting state of the first one-way gear ring and the second one-way gear ring, the external thread ring cannot rotate reversely, and the conduction needle assembly is fixed more stably; and the conduction needle assembly is convenient to use, disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness detection, in particular to a used conducting needle for detecting automobile wire harnesses. Background Art

[0002] The wiring harness test is to test the wiring components and insulation wrapping materials that connect various electrical devices in the circuit to find out possible problems. Generally, it is necessary to measure the wiring harness's conduction, insulation, withstand voltage, and resistance. The conduction pin is required for automobile wiring harness testing.

[0003] The continuity test refers to applying a certain current to the cable to be tested, measuring the voltage and current values ​​at the cable endpoints, and converting the measurement results using Ohm's law inside the tester to obtain an accurate resistance value. This resistance value is compared with the resistance value set by the user to determine whether it meets the user's indicator requirements, and the judgment result is displayed on the computer in the form of clear information of "pass" or "fail" to inform the user.

[0004] However, the existing conductive pins will wear out after use and need to be replaced in time. Directly replacing the entire conductive pin is wasteful and the cost of wiring harness testing is high. In this regard, we propose a used conductive pin for automotive wiring harness detection to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a used conducting needle for detecting automobile wiring harnesses, which solves the problem that the conducting needle will wear out after use and needs to be replaced in time. Directly replacing the entire conducting needle is relatively wasteful and the wiring harness testing cost is high.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a conductive needle for detecting used automotive wiring harnesses, comprising a conductive needle assembly, the top of the conductive needle assembly is fixedly connected to a limiting ratchet column, the surface of the conductive needle assembly is movably sleeved with a first connecting ring, the top of the first connecting ring is fixedly connected to a second connecting ring, the inner cavity of the second connecting ring is provided with a tooth groove, the inner cavity of the tooth groove is meshed with the surface of the limiting ratchet column, the top of the second connecting ring is fixedly connected to an internal threaded ring, the inner cavity of the internal threaded ring is threadedly connected to an external threaded ring, the top of the external threaded ring is fixedly connected to a connecting plate, the bottom of the connecting plate is fixedly connected to a first spring, the bottom of the first spring is fixedly connected to a first one-way toothed ring, and the surface of the second connecting ring is fixedly sleeved with a second one-way toothed ring.

[0007] Preferably, the surface of the second one-way gear ring is unidirectionally meshed with the surface of the first one-way gear ring, and a fixer is fixedly connected to the top of the connecting plate.

[0008] Preferably, a second spring is fixedly connected to the bottom of the connecting plate, and the bottom of the second spring is in contact with the top of the limiting ratchet column.

[0009] Preferably, the conducting needle assembly includes a battery core, a surface fixing sleeve of the battery core is provided with an insulating ring, and a surface fixing sleeve of the insulating ring is provided with a protective ring.

[0010] Preferably, the insulating ring is made of ceramic, and the thickness of the insulating ring is 2 mm.

[0011] Preferably, the material of the protective ring is carbon fiber, and the thickness of the protective ring is 3 mm. Beneficial Effects

[0012] The utility model provides a used conductive needle for detecting automobile wiring harnesses. Compared with the prior art, it has the following beneficial effects:

[0013] The invention is used for detecting a used conducting needle of an automobile wiring harness. By pulling up the first one-way toothed ring, the first one-way toothed ring and the second one-way toothed ring are disengaged from the limit position. At this time, the connecting plate can be reversed to remove the connecting plate, the first spring, the first one-way toothed ring and the external threaded ring. At this time, the conducting needle assembly is pushed upward to disengage the limit ratchet column from the limit position of the tooth groove, and the disassembly of the conducting needle assembly is completed. After replacing a new conducting needle assembly, the new limit ratchet column is inserted into the second connecting ring to make the limit ratchet column mesh with the tooth groove, thereby completing the pre-fixation of the conducting needle assembly. At this time, the external threaded ring is aligned with the inner cavity of the internal threaded ring and rotated. Since the first one-way toothed ring and the second one-way toothed ring are in a one-way meshing state, the connecting plate can rotate normally. When the external threaded ring is loose, due to the meshing limit state of the first one-way toothed ring and the second one-way toothed ring, the external threaded ring cannot be reversed, so that the conducting needle assembly is fixed more firmly, which is convenient for the use and disassembly of the conducting needle assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the main view of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Structural plan;

[0016] Figure 3 This is the front view of the structure of the clamping assembly of the utility model;

[0017] Figure 4 This is the front view of the internal structure of the internal thread ring of the utility model;

[0018] Figure 5 This is the front view of the conductive needle assembly structure of the utility model.

[0019] In the figure: 1. conductive pin assembly; 2. first connecting ring; 3. second connecting ring; 4. fixer; 5. connecting plate; 6. first spring; 7. first one-way gear ring; 8. second one-way gear ring; 9. internal thread ring; 10. limiting ratchet column; 11. tooth groove; 12. second spring; 13. external thread ring; 101. protective ring; 102. insulating ring; 103. battery cell. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution, which specifically includes the following embodiments: Example

[0022] A used conducting needle for detecting automobile wiring harnesses, comprising a conducting needle assembly 1, the top of the conducting needle assembly 1 is fixedly connected to a limited ratchet column 10, the surface of the conducting needle assembly 1 is movably sleeved with a first connecting ring 2, the top of the first connecting ring 2 is fixedly connected to a second connecting ring 3, the inner cavity of the second connecting ring 3 is provided with a tooth groove 11, the inner cavity of the tooth groove 11 is meshed with the surface of the limited ratchet column 10, the top of the second connecting ring 3 is fixedly connected to an internal threaded ring 9, the inner cavity of the internal threaded ring 9 is threadedly connected to an external threaded ring 13, the top of the external threaded ring 13 is fixedly connected to a connecting plate 5, the bottom of the connecting plate 5 is fixedly connected to a first spring 6, the bottom of the first spring 6 is fixedly connected to a first one-way toothed ring 7, and the surface of the second connecting ring 3 is fixedly sleeved with a second one-way toothed ring 8;

[0023] By pulling up the first one-way toothed ring 7, the first one-way toothed ring 7 and the second one-way toothed ring 8 are disengaged from the limit position. At this time, the connecting plate 5 is reversed, and the connecting plate 5, the first spring 6, the first one-way toothed ring 7 and the external threaded ring 13 can be removed. At this time, the guide needle assembly 1 is pushed upward to make the limit ratchet column 10 disengage from the limit position of the tooth groove 11, and the disassembly of the guide needle assembly 1 is completed. After replacing the new guide needle assembly 1, the new limit ratchet column 10 is inserted into the second connecting ring 3 so that the limit ratchet column 10 and the tooth groove are in contact with each other. 11 engages, thereby completing the pre-fixation of the conducting needle assembly 1. At this time, the external threaded ring 13 is aligned with the inner cavity of the internal threaded ring 9 and rotated. Since the first one-way toothed ring 7 and the second one-way toothed ring 8 are in a one-way meshing state, the connecting plate 5 can rotate normally. When the external threaded ring 13 is loose, due to the meshing limit state of the first one-way toothed ring 7 and the second one-way toothed ring 8, the external threaded ring 13 cannot be reversed, so that the conducting needle assembly 1 is fixed more firmly, which is convenient for the use and disassembly of the conducting needle assembly 1.

[0024] The surface of the second one-way gear ring 8 is unidirectionally meshed with the surface of the first one-way gear ring 7, and the top of the connecting plate 5 is fixedly connected with a fixture 4;

[0025] The fixture 4 is provided to facilitate the assembly of the conducting needle assembly 1 on the test assembly.

[0026] The bottom of the connecting plate 5 is fixedly connected with a second spring 12, and the bottom of the second spring 12 is in contact with the top of the limiting ratchet column 10;

[0027] By providing the second spring 12 , when the conducting pin assembly 1 contacts the wiring harness, a buffer can be obtained, thereby reducing the damage to the conducting pin assembly 1 caused by metal parts on the wiring harness.

[0028] The conducting pin assembly 1 includes a battery core 103 . An insulating ring 102 is fixedly sleeved on the surface of the battery core 103 . A protective ring 101 is fixedly sleeved on the surface of the insulating ring 102 .

[0029] The insulating ring 102 is made of ceramic, and the thickness of the insulating ring 102 is 2 mm;

[0030] Ceramic materials are a type of inorganic non-metallic material made from natural or synthetic compounds through forming and high-temperature sintering. They have the advantages of high melting point, high hardness, high wear resistance, and oxidation resistance. They can be used as structural materials, tool materials, and mold materials. Because ceramics also have certain special properties, they can also be used as functional materials.

[0031] The material of the protective ring 101 is carbon fiber, and the thickness of the protective ring 101 is 3 mm;

[0032] Carbon fiber is mainly composed of carbon elements and has the characteristics of high temperature resistance, friction resistance, thermal conductivity and corrosion resistance. It is fibrous, soft, and can be processed into various fabrics. Because its graphite microcrystalline structure is preferentially oriented along the fiber axis, it has high strength and modulus along the fiber axis. The density of carbon fiber is small, so the specific strength and specific modulus are high. The main use of carbon fiber is as a reinforcing material combined with resin, metal, ceramic and carbon to manufacture advanced composite materials. Carbon fiber reinforced epoxy resin composite materials have the highest specific strength and specific modulus among existing engineering materials.

[0033] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] During operation, when the conducting needle assembly 1 needs to be replaced, it is only necessary to pull up the first one-way toothed ring 7 so that the first one-way toothed ring 7 and the second one-way toothed ring 8 are disengaged from the limit position. At this time, the connecting plate 5 is reversed, and the connecting plate 5, the first spring 6, the first one-way toothed ring 7 and the external threaded ring 13 can be removed. At this time, the conducting needle assembly 1 is pushed upward so that the limiting ratchet column 10 is disengaged from the limit position of the tooth groove 11, and the disassembly of the conducting needle assembly 1 is completed. After replacing the new conducting needle assembly 1, the new limiting ratchet column 10 is inserted into the second connecting ring 3 so that The limiting ratchet column 10 is engaged with the tooth groove 11, thereby completing the pre-fixation of the guide needle assembly 1. At this time, the external threaded ring 13 is aligned with the inner cavity of the internal threaded ring 9 and rotated. Since the first one-way toothed ring 7 and the second one-way toothed ring 8 are in a one-way meshing state, the connecting plate 5 can rotate normally. When the external threaded ring 13 is loose, due to the meshing limiting state of the first one-way toothed ring 7 and the second one-way toothed ring 8, the external threaded ring 13 cannot be reversed, so that the guide needle assembly 1 is fixed more firmly, which is convenient for the use and disassembly of the guide needle assembly 1.

Claims

1. A used conducting pin for detecting a used wiring harness of an automobile, comprising a conducting pin assembly (1), characterized in that: The top of the guide needle assembly (1) is fixedly connected to a limited ratchet column (10); the surface of the guide needle assembly (1) is movably sleeved with a first connecting ring (2); the top of the first connecting ring (2) is fixedly connected to a second connecting ring (3); the inner cavity of the second connecting ring (3) is provided with a tooth groove (11); the inner cavity of the tooth groove (11) is meshed with the surface of the limited ratchet column (10); the top of the second connecting ring (3) is fixedly connected to an internal threaded ring (9); the inner cavity of the internal threaded ring (9) is threadedly connected to an external threaded ring (13); the top of the external threaded ring (13) is fixedly connected to a connecting plate (5); the bottom of the connecting plate (5) is fixedly connected to a first spring (6); the bottom of the first spring (6) is fixedly connected to a first one-way toothed ring (7); and the surface of the second connecting ring (3) is fixedly sleeved with a second one-way toothed ring (8).

2. The used conductive needle for detecting automobile wiring harness according to claim 1, characterized in that: The surface of the second one-way gear ring (8) is in one-way meshing with the surface of the first one-way gear ring (7), and the top of the connecting plate (5) is fixedly connected to a fixer (4).

3. The used conductive needle for detecting automobile wiring harness according to claim 1, characterized in that: A second spring (12) is fixedly connected to the bottom of the connecting plate (5), and the bottom of the second spring (12) is in contact with the top of the limiting ratchet column (10).

4. The used conductive needle for detecting automobile wiring harness according to claim 1, characterized in that: The conducting pin assembly (1) comprises a battery core (103), a surface fixing sleeve of the battery core (103) is provided with an insulating ring (102), and a surface fixing sleeve of the insulating ring (102) is provided with a protective ring (101).

5. The used conductive needle for detecting automobile wiring harness according to claim 4, characterized in that: The material of the insulating ring (102) is ceramic, and the thickness of the insulating ring (102) is 2 mm.

6. The used conducting needle for detecting automobile wiring harness according to claim 4, characterized in that: The material of the protective ring (101) is carbon fiber, and the thickness of the protective ring (101) is 3 mm.

Images