CN209858620U - Test probe for testing automobile wire harness - Google Patents
Test probe for testing automobile wire harness Download PDFInfo
- Publication number
- CN209858620U CN209858620U CN201920544567.3U CN201920544567U CN209858620U CN 209858620 U CN209858620 U CN 209858620U CN 201920544567 U CN201920544567 U CN 201920544567U CN 209858620 U CN209858620 U CN 209858620U
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- CN
- China
- Prior art keywords
- endotheca
- overcoat
- needle shaft
- test probe
- testing
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Abstract
The utility model discloses a test probe for car wiring harness test, including overcoat (1), endotheca (2) and needle axle (3), needle axle (3) are worn to establish in endotheca (2) and its both ends spill endotheca (2), overcoat (1) sets up on endotheca (2), overcoat (1), endotheca (2) and needle axle (3) are the conductor, all be provided with the screw thread of mutually supporting on the internal surface of overcoat (1) and the surface of endotheca (2), both pass through threaded connection, overcoat (1) shelters from the part of endotheca (2), fixes polygon flange (4) that are provided with locking usefulness on the outer circumference of endotheca (2) that are not sheltered from by overcoat (1), be provided with retaining member (5) between overcoat (1) and endotheca (2). The outer sleeve and the inner sleeve can be prevented from rotating, and the testing precision is ensured.
Description
Technical Field
The utility model relates to a test probe for car wiring harness test.
Background
The test probes are contact media for electrical test, and the types of the test probes include PCB probes, ICT function test probes (automobile wiring harness test probes, battery pins, current voltage pins, switch pins, capacitance polarity pins and high-frequency pins), BGA test probes and the like. The automobile wire harness test probe is used for detecting the performance of an automobile wire harness, when the automobile wire harness test probe is tested, the automobile wire harness test probe needs to be started under the condition that the automobile wire harness test equipment is started, the running of the equipment for testing the automobile wire harness can drive the outer sleeve and the inner sleeve of the test probe to rotate, and then the test precision is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model aims to provide a test probe for automobile wire harness test which can prevent the rotation of the outer sleeve and the inner sleeve and ensure the test precision.
In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides a test probe for car wiring harness test, includes overcoat, endotheca and needle shaft, the needle shaft is worn to establish in the endotheca and its both ends spill the endotheca, the overcoat sets up in the endotheca, overcoat, endotheca and needle shaft are the conductor, all be provided with the screw thread of mutually supporting on the internal surface of overcoat and the surface of endotheca, both pass through threaded connection, the portion of endotheca is sheltered from to the overcoat, not by the fixed polygon flange that is used of locking that is provided with on the outer circumference of the endotheca that the overcoat sheltered from can be quadrangle flange, hexagon flange etc., be provided with the retaining member between overcoat and the.
The utility model discloses a test probe for car wiring harness test's beneficial effect is, through screw thread locking between overcoat and the endotheca, and through the setting of retaining member, prevent that threaded connection's overcoat and endotheca from taking place relative rotation, through the setting of screw thread and retaining member, make overcoat and endotheca can not take place relative rotation, the endotheca is along with the stable fixing on insulating fixed plate of overcoat, has guaranteed the test accuracy of the needle axle of test usefulness then; the arrangement of the polygonal flange can quickly lock and fix the inner sleeve and the outer sleeve by using a spanner.
As a further improvement of the utility model, the outer wall of the outer sleeve close to one end of the test end of the needle shaft is provided with a border, and the border protrudes out of the outer surface of the outer sleeve. The outer sleeve is fixedly connected with the insulating fixing plate through the edge rolling, and the outer sleeve and the insulating fixing plate are in interference fit, so that the outer sleeve and the inner sleeve do not rotate relatively, the connection stability of the outer sleeve and the inner sleeve is improved, and the test precision of the needle shaft for testing is further guaranteed.
As a further improvement of the utility model, the outer sleeve is provided with a welding wire groove on the outer wall of one end of the testing end far away from the needle shaft. The welding wire groove is used for connecting a connecting wire of the testing equipment, and the shape of the welding wire groove is preferably a semi-ellipse.
As a further improvement, the end face of the testing end of the needle shaft is of a saw-toothed structure and can be used for pricking an oxide layer on the surface of a wire harness to be tested so as to improve the testing precision.
Preferably, the locking piece is a locking bolt, an outer sleeve threaded hole and an inner sleeve threaded hole are respectively formed in the outer sleeve and the inner sleeve, when the outer sleeve is locked with the inner sleeve, the outer sleeve threaded hole corresponds to the inner sleeve threaded hole, and the locking bolt penetrates through the corresponding outer sleeve threaded hole and the corresponding inner sleeve threaded hole. The locking bolt is matched with the threaded hole, so that the outer sleeve and the inner sleeve can be quickly locked.
Preferably, a spring is arranged between the needle shaft and the inner sleeve, the spring is a conductor, the outer surface of the needle shaft is in a step shape, the spring sleeve is arranged on the needle shaft, one end of the spring sleeve abuts against the step-shaped position of the needle shaft, the inner surface of the inner sleeve is in the step shape, and the other end of the spring abuts against the step-shaped position of the inner sleeve. The setting of spring for certain buffering has between needle axle and the pencil of being surveyed, when the test end of needle axle and pencil contact, because the setting of spring can make needle axle and pencil contact all the time. And the two ends of the spring are respectively propped against the two step-shaped bodies, so that the spring is simple to mount.
Preferably, the outer surface of the spring is wrapped with an insulating layer. The spring is completely in an insulation state, and the spring can be always in a good working state under the condition of high current, so that the performance is reliable.
Preferably, the outer sleeve and the inner sleeve are made of insulating materials, and the reliability of the needle shaft test is guaranteed.
Drawings
FIG. 1 is a schematic view of the inner sleeve engaged with the needle shaft in this embodiment;
FIG. 2 is a schematic structural view of the outer cover in the present embodiment;
fig. 3 is a schematic structural diagram of the present embodiment.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1-3, the test probe for testing the automobile wire harness of the present embodiment includes an outer sleeve 1, an inner sleeve 2, and a needle shaft 3, wherein the needle shaft 3 is inserted into the inner sleeve 2, and the inner sleeve 2 leaks from both ends of the needle shaft 3, the outer sleeve 1 is disposed on the inner sleeve 2, the outer sleeve 1, the inner sleeve 2, and the needle shaft 3 are all conductors, the outer sleeve 1 and the inner sleeve 2 are made of insulating materials, the inner surface of the outer sleeve 1 and the outer surface of the inner sleeve 2 are all provided with mutually matched threads, the outer sleeve 1 is connected with the inner sleeve 2 through the threads, the outer sleeve 1 shields the inner sleeve 2, the outer circumference of the inner sleeve 2 not shielded by the outer sleeve 1 is fixedly provided with a polygonal flange 4 for. The locking piece 5 is a locking bolt, an outer sleeve threaded hole 9 and an inner sleeve threaded hole 10 are respectively formed in the outer sleeve 1 and the inner sleeve 2, when the outer sleeve 1 is locked with the inner sleeve 2, the outer sleeve threaded hole 9 and the inner sleeve threaded hole 10 correspond to each other, and the locking bolt penetrates through the corresponding outer sleeve threaded hole 9 and the corresponding inner sleeve threaded hole 10.
The outer wall of one end of the outer sleeve 1, which is close to the testing end of the needle shaft 3, is provided with a rolled edge 6, and the rolled edge 6 protrudes out of the outer surface of the outer sleeve 1. The outer wall of one end of the outer sleeve 1, which is far away from the testing end of the needle shaft 3, is provided with a welding wire groove 7.
The end surface of the testing end of the needle shaft 3 is of a sawtooth structure 8. A spring is arranged between the needle shaft 3 and the inner sleeve 2, the spring is a conductor, an insulating layer is wrapped on the outer surface of the spring, the outer surface of the needle shaft 3 is in a step shape, the spring is sleeved on the needle shaft 3, one end of the spring abuts against the step-shaped position of the needle shaft 3, the inner surface of the inner sleeve 2 is in the step shape, and the other end of the spring abuts against the step-shaped position of the inner sleeve 2.
The installation mode is as follows: the outer sleeve 1 is fixed on the insulating fixing plate and is fixed, the needle shaft 3 is arranged in the inner sleeve 2 in a penetrating mode, the inner sleeve 2 is inserted into the outer sleeve 1, the inner sleeve 2 is rotated by a wrench, the inner sleeve 2 is in threaded connection with the outer sleeve 1, until the outer sleeve threaded hole 9 is aligned with the inner sleeve threaded hole 10, the locking bolt serving as the locking piece 5 is inserted, the inner sleeve 2 and the outer sleeve 1 are completely locked, relative rotation is difficult to occur even under a high-vibration environment, and the connection stability of the inner sleeve and the outer sleeve is guaranteed.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (6)
1. The utility model provides a test probe for car wiring harness test, includes overcoat (1), endotheca (2) and needle axle (3), just its both ends leak endotheca (2) in endotheca (2) are worn to establish in needle axle (3), overcoat (1) sets up on endotheca (2), overcoat (1), endotheca (2) and needle axle (3) are the conductor, its characterized in that: all be provided with the screw thread of mutually supporting on the internal surface of overcoat (1) and the surface of endotheca (2), both pass through threaded connection, overcoat (1) shelters from the part of endotheca (2), and fixed polygon flange (4) that are provided with locking usefulness on the outer circumference of endotheca (2) that are not sheltered from by overcoat (1), be provided with retaining member (5) between overcoat (1) and endotheca (2).
2. The test probe for automotive wiring harness testing of claim 1, wherein: the outer wall of one end, close to the testing end of the needle shaft (3), of the outer sleeve (1) is provided with a binding (6), and the binding (6) protrudes out of the outer surface of the outer sleeve (1).
3. The test probe for automotive wiring harness testing of claim 1, wherein: and a welding wire groove (7) is formed in the outer wall of one end, far away from the testing end of the needle shaft (3), of the outer sleeve (1).
4. The test probe for automotive wiring harness testing of claim 1, wherein: the end face of the testing end of the needle shaft (3) is of a sawtooth structure (8).
5. The test probe for automotive wiring harness testing of claim 1, wherein: retaining member (5) are the locking bolt, be provided with overcoat screw hole (9), endotheca screw hole (10) on overcoat (1) and endotheca (2) respectively, work as overcoat (1) and endotheca (2) locking, overcoat screw hole (9), endotheca screw hole (10) correspond, locking bolt screw thread passes corresponding overcoat screw hole (9), endotheca screw hole (10).
6. The test probe for automotive wiring harness testing of claim 1, wherein: a spring is arranged between the needle shaft (3) and the inner sleeve (2), the spring is a conductor, the outer surface of the needle shaft (3) is in a step shape, the spring is sleeved on the needle shaft (3), one end of the spring is abutted to the step-shaped position of the needle shaft (3), the inner surface of the inner sleeve (2) is in the step shape, and the other end of the spring is abutted to the step-shaped position of the inner sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544567.3U CN209858620U (en) | 2019-04-22 | 2019-04-22 | Test probe for testing automobile wire harness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544567.3U CN209858620U (en) | 2019-04-22 | 2019-04-22 | Test probe for testing automobile wire harness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209858620U true CN209858620U (en) | 2019-12-27 |
Family
ID=68938545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920544567.3U Active CN209858620U (en) | 2019-04-22 | 2019-04-22 | Test probe for testing automobile wire harness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209858620U (en) |
-
2019
- 2019-04-22 CN CN201920544567.3U patent/CN209858620U/en active Active
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