CN205353144U - Test needle with conical test body - Google Patents
Test needle with conical test body Download PDFInfo
- Publication number
- CN205353144U CN205353144U CN201521041185.7U CN201521041185U CN205353144U CN 205353144 U CN205353144 U CN 205353144U CN 201521041185 U CN201521041185 U CN 201521041185U CN 205353144 U CN205353144 U CN 205353144U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- frustum
- test
- cylinder body
- cone portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measuring Leads Or Probes (AREA)
Abstract
The utility model discloses a test needle with conical test body, including the sleeve pipe, set up in the elasticity measuring head of sleeve pipe one end and set up in the dead lever of the sleeve pipe other end, the elasticity measuring head including set up in the intraductal spring of cover to and slide set up in the probe of sleeve pipe one end, the probe including the cylinder somatic part, with frustum of a cone portion that cylinder somatic part smooth transition connects and with the bulb portion that the smooth transition of frustum of a cone portion connects, the diameter of cylinder somatic part slightly is greater than the aperture in the hole of awaiting measuring. This structural design's test needle can make bulb portion and frustum of a cone portion insert in advance and treat that testing plug -in is downthehole, along with the increase of pressure for smooth transition between frustum of a cone portion and the cylinder somatic part locates and treats that the downthehole pad of testing plug -in switches on, thereby has effectively reduced test area of contact, has improved test stability.
Description
Technical field
This utility model relates to circuit board testing technical field, particularly relates to a kind of testing needle with cone test body.
Background technology
To on some pcb boards, the sidewall of insert hole is being provided with pad under prior art, the pad of this type of insert hole is when carrying out continuity test, because of in the fully-inserted insert hole of the test lead of testing needle and test lead end wall contact with the hole wall of insert hole completely, easily cause pad abrasion, or cause loose contact because the aperture of insert hole is bigger than normal, many exceptions such as test is unstable.
Utility model content
This utility model provides one can reduce test wear and the reliable testing needle of stable testing.
For reaching this purpose, this utility model by the following technical solutions:
A kind of testing needle with cone test body, including sleeve pipe, it is arranged at the flexibility test head of described sleeve pipe one end and is arranged at the fixing bar of the described sleeve pipe other end, described flexibility test head includes the spring being arranged in described sleeve pipe, and it is slideably positioned in the probe of described sleeve pipe one end, described probe includes cylinder body and described cylinder body is connected smoothly frustum of a cone portion and the ball head being connected smoothly with described frustum of a cone portion, the diameter of described cylinder body is slightly larger than the aperture treating gaging hole.
Wherein, described cylinder body, described frustum of a cone portion and described ball head are coaxially wholely set.
Wherein, described cylinder body, described frustum of a cone portion and described ball head adopt the one turning of conducting metal rod to form.
Wherein, the lower end of described cylinder body is extended in described sleeve pipe, and the lower end of described cylinder body is provided with the flange being slidably matched with described internal surface of sleeve pipe, is provided with described spring in the casing cavity body of described flange bottom.
The beneficial effects of the utility model: this utility model includes sleeve pipe, is arranged at the flexibility test head of described sleeve pipe one end and is arranged at the fixing bar of the described sleeve pipe other end, described flexibility test head includes the spring being arranged in described sleeve pipe, and it is slideably positioned in the probe of described sleeve pipe one end, described probe includes cylinder body and described cylinder body is connected smoothly frustum of a cone portion and the ball head being connected smoothly with described frustum of a cone portion, the diameter of described cylinder body is slightly larger than the aperture treating gaging hole.The testing needle of this structural design, ball head and frustum of a cone portion can be made to be previously inserted in insert hole to be tested, increase along with pressure, the place that seamlessly transits between frustum of a cone portion and cylinder body is turned on the pad in insert hole to be tested, thus effectively reducing test contact area, improve measuring stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of testing needle with cone test body of this utility model.
Detailed description of the invention
Below in conjunction with shown in accompanying drawing 1 and further illustrate the technical solution of the utility model by detailed description of the invention.
A kind of testing needle with cone test body, including sleeve pipe 1, it is arranged at the flexibility test head of described sleeve pipe 1 one end and is arranged at the fixing bar 3 of described sleeve pipe 1 other end, described flexibility test head includes the spring 4 being arranged in described sleeve pipe 1, and it is slideably positioned in the probe 5 of described sleeve pipe 1 one end, described probe 5 includes cylinder body 51 and described cylinder body 51 is connected smoothly frustum of a cone portion 52 and the ball head 53 being connected smoothly with described frustum of a cone portion 52, the diameter of described cylinder body 51 is slightly larger than the aperture treating gaging hole.
It is further preferred that described cylinder body 51, described frustum of a cone portion 52 and described ball head 53 are coaxially wholely set.
It is further preferred that described cylinder body 51, described frustum of a cone portion 52 and described ball head 53 adopt the one turning of conducting metal rod to form.
It is preferred that, the lower end of described cylinder body 51 is extended in described sleeve pipe 1, and the lower end of described cylinder body 51 is provided with the flange being slidably matched with described sleeve pipe 1 inwall, it is provided with described spring 4 in sleeve pipe 1 cavity of described flange bottom, as preferably, sleeve pipe and fixing bar may be configured as one, and the opening of sleeve pipe is provided with the end cap socket-connected with cylinder body, and end cap and sleeve pipe can adopt welding manner to fasten.
Adopt the testing needle of said structure design, ball head and frustum of a cone portion can be made to be previously inserted in insert hole to be tested, play the effect of pre-determined bit, increase along with pressure, the place that seamlessly transits between frustum of a cone portion and cylinder body is made to turn on the pad in insert hole to be tested again, thus effectively reducing test contact area, improve measuring stability.
Know-why of the present utility model is described above in association with specific embodiment.These describe and are intended merely to explanation principle of the present utility model, and can not be construed to the restriction to this utility model protection domain by any way.Based on explanation herein, those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present utility model, and these modes fall within protection domain of the present utility model.
Claims (4)
1. the testing needle with cone test body, it is characterized in that, including sleeve pipe, it is arranged at the flexibility test head of described sleeve pipe one end and is arranged at the fixing bar of the described sleeve pipe other end, described flexibility test head includes the spring being arranged in described sleeve pipe, and it is slideably positioned in the probe of described sleeve pipe one end, described probe includes cylinder body and described cylinder body is connected smoothly frustum of a cone portion and the ball head being connected smoothly with described frustum of a cone portion, the diameter of described cylinder body is slightly larger than the aperture treating gaging hole.
2. the testing needle with cone test body according to claim 1, it is characterised in that described cylinder body, described frustum of a cone portion and described ball head are coaxially wholely set.
3. the testing needle with cone test body according to claim 1, it is characterised in that described cylinder body, described frustum of a cone portion and described ball head adopt the one turning of conducting metal rod to form.
4. the testing needle with cone test body according to claim 1, it is characterized in that, the lower end of described cylinder body is extended in described sleeve pipe, and the lower end of described cylinder body is provided with the flange being slidably matched with described internal surface of sleeve pipe, in the casing cavity body of described flange bottom, it is provided with described spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521041185.7U CN205353144U (en) | 2015-12-14 | 2015-12-14 | Test needle with conical test body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521041185.7U CN205353144U (en) | 2015-12-14 | 2015-12-14 | Test needle with conical test body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205353144U true CN205353144U (en) | 2016-06-29 |
Family
ID=56153631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521041185.7U Expired - Fee Related CN205353144U (en) | 2015-12-14 | 2015-12-14 | Test needle with conical test body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205353144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918919A (en) * | 2018-07-11 | 2018-11-30 | 南京中车浦镇城轨车辆有限责任公司 | A kind of fast insert-pull part being shorted test for c-type terminal |
-
2015
- 2015-12-14 CN CN201521041185.7U patent/CN205353144U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918919A (en) * | 2018-07-11 | 2018-11-30 | 南京中车浦镇城轨车辆有限责任公司 | A kind of fast insert-pull part being shorted test for c-type terminal |
| CN108918919B (en) * | 2018-07-11 | 2020-11-24 | 南京中车浦镇城轨车辆有限责任公司 | A quick plug spare for C type terminal short circuit test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20181214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |