CN218546805U - Looped netowrk cabinet sleeve pipe test connecting device - Google Patents
Looped netowrk cabinet sleeve pipe test connecting device Download PDFInfo
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- CN218546805U CN218546805U CN202222363003.4U CN202222363003U CN218546805U CN 218546805 U CN218546805 U CN 218546805U CN 202222363003 U CN202222363003 U CN 202222363003U CN 218546805 U CN218546805 U CN 218546805U
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- connecting rod
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- screw thread
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Abstract
The utility model provides a looped netowrk cabinet sleeve pipe test connecting device, including connecting rod and nut, the screw thread has on the connecting rod, the screw thread certainly the one end of connecting rod is played, the orientation the other end of connecting rod extends, the nut can revolve in on the screw thread. The beneficial effects of the utility model are that reasonable in design has realized the fastener and the looped netowrk cabinet sheathed tube good contact of loop resistance tester through the connecting rod that has rotatory screw thread and nut, has improved the accuracy and the work efficiency of test result greatly, has avoided because of test fastener and looped netowrk cabinet sleeve pipe bad contact cause the loop resistance tester can not normally work or hidden danger such as experimental data mistake.
Description
Technical Field
The utility model relates to a looped netowrk cabinet sleeve pipe test connecting device.
Background
The ring main unit has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like, and is widely applied to distribution stations and box-type substations of load centers such as urban residential districts, high-rise buildings, large public buildings, factory enterprises and the like. In order to ensure the product quality, the loop resistance value of the ring main unit needs to be accurately measured in a preventive test and a handover test, if the loop resistance exceeds a specified value, a certain connecting part in a conductive loop is likely to have poor contact, and the local temperature of the poor contact part is increased when a large current runs, so that the insulation fault is seriously caused. Therefore, the resistance value of each phase of the conductive loop of the ring main unit is important data for installation, maintenance and quality acceptance of the ring main unit. The position that looped netowrk cabinet is connected with the cable is the sleeve pipe that constitutes by the metal external application epoxy that has the internal thread, when carrying out return circuit resistance test, test pincers can't be with internal thread metal direct contact, generally take the looped netowrk cabinet from the stainless steel stay bolt of taking the accessory on the scene, make its manual work screw up earlier and fix on the sleeve pipe, again with test pincers clamp on the bolt, waste time and energy, and this bolt is not fit for the looped netowrk cabinet experiment, make at every turn experimental data and leave factory report produce great error, make the accuracy of experimental data receive the influence.
The defects of the prior art scheme are as follows:
1. the matched bolt is not a connecting rod for carrying out a special loop test, the electric conduction effect is not good, and a large error is generated between test data and a factory report every time, so that the accuracy of the test data is influenced;
2. the number of the matched bolts of each ring main unit is small, all the bolts are screwed after the three bolts are required to be installed in each test, the bolts are disassembled after the test is finished, the next group of tests are carried out, and the processes of screwing, testing and disassembling again are time-consuming and labor-consuming in repeated disassembling;
3. the contact area between each matched bolt of the ring main unit and the sleeve is small, and only the thread of the bolt is in contact with the thread of the sleeve;
disclosure of Invention
The to-be-solved problem of the utility model is to provide a looped netowrk cabinet sleeve pipe test connecting device, overcome not enough among the prior art.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a looped netowrk cabinet sleeve pipe test connecting device, includes connecting rod and nut, the screw thread has on the connecting rod, the screw thread certainly the one end of connecting rod is gone up, and the orientation the other end of connecting rod extends, the nut can revolve in on the screw thread.
When the device is used, the connecting rod does not need to be completely screwed into the ring main unit sleeve, only part of the connecting rod is screwed into the ring main unit sleeve, then the nut is screwed to be completely attached to the metal surface of the ring main unit sleeve, the reliable connection between the device and the ring main unit can be realized, and the loop resistance test wire is clamped on the part of the connecting rod, which is positioned outside the ring main unit sleeve, to be occluded, so that the reliable connection between the test instrument and the ring main unit sleeve can be completed.
Optionally, the other end of the connecting rod is provided with a connector, the connector is a cylinder with a circular or polygonal cross section, and the cross sectional area of the connector is larger than that of the connecting rod. The stable connection of resistance test fastener and connecting rod has been guaranteed in the setting of connector.
Optionally, the connecting rod, the nut and the connector are made of red copper materials.
Optionally, the screw thread on the connecting rod starts from one end of the connecting rod to the middle of the connecting rod, the connecting rod is sleeved with a compression spring, the nut is screwed on the screw thread, and two ends of the compression spring are respectively abutted to the connector and the nut.
Optionally, one end of the compression spring is welded to the connection head.
The utility model has the advantages and positive effects that: 1. the developed connecting bolt is made of red copper material, has excellent conductivity, and can reduce errors to the maximum extent, so that test data are more accurate; 2. multiple sets can be produced for field use; 3. the connecting rod and the ring main unit sleeve are fastened through the adjustment of the nut, and the connecting rod does not need to be screwed into the ring main unit sleeve every time; 4. the contact area between the nut and the outer edge of the ring main unit sleeve is increased.
Drawings
Fig. 1 is a schematic plan view of an embodiment 1 of the present invention;
fig. 2 is a schematic perspective view of embodiment 2 of the present invention;
in the figure: 1-a screw head; 2-long screw rod; 3-a nut; 4-ring main unit sleeve; 5-threading; 6-pressing the spring.
Detailed Description
The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Specific example 1:
as shown in fig. 1, the utility model provides a ring main unit casing test connection device, which comprises a long screw 2 as a connection rod and a nut 3 screwed on the long screw 2, wherein the end part of the long screw is provided with a screw head;
the long screw 2 surface system has screw thread 5, and wherein 5 diameter d of screw thread and pitch p should be applicable to the screw diameter and the pitch of looped netowrk cabinet sleeve pipe 4, and the nut 3 diameter should not be too big, the size of suitable screw head 1, and screw head 1 is circular or hexagon cylinder for the cross-section, and the cross-sectional area of screw head 1 is greater than the cross-sectional area of long screw 2, and wherein long screw 2, screw head 1 and nut 3 are the red copper material that electric conductive property is good and make.
When the device is used, the nut 3 is screwed on the long screw rod 2, 1/4 of the length of the long screw rod 2 is screwed to the ring main unit sleeve 4, the nut 3 is screwed and completely attached to the metal surface of the ring main unit sleeve 4, the device can be reliably connected with the ring main unit, and finally the loop resistance test wire clamp is meshed with the k area of the screw head 1, so that the reliable connection of a test instrument and the ring main unit sleeve 4 can be completed. The accuracy of the test data is ensured.
This structural design is reasonable, has realized the fastener of loop resistance tester and looped netowrk cabinet sleeve pipe 4's good contact through utensil long screw 2 and nut 3, has improved the accuracy and the work efficiency of test result greatly, has avoided because of test fastener and looped netowrk cabinet sleeve pipe 4 contact failure cause's loop resistance tester can not normally work or hidden danger such as experimental data mistake.
Specific example 2:
When the device is used, the threaded section of the connecting rod is screwed in the ring main unit sleeve 4, the nut 3 is completely attached to the metal surface of the ring main unit sleeve 4 under the elastic force action of the compression spring 6, the device can be reliably connected with the ring main unit, and finally, the loop resistance testing wire clamp is meshed with the k area of the connector, so that the reliable connection of a testing instrument and the ring main unit sleeve 4 can be completed. The accuracy of the test data is ensured.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (5)
1. The utility model provides a looped netowrk cabinet sleeve pipe test connecting device which characterized in that: including connecting rod and nut, the connecting rod is last to have the screw thread, the screw thread certainly the one end of connecting rod is gone up, and the orientation the other end of connecting rod extends, the nut can revolve in on the screw thread.
2. The ring main unit bushing test connecting device of claim 1, wherein: the other end of connecting rod has the connector, the connector is circular or polygon cylinder for the cross-section, the cross-sectional area of connector is greater than the cross-sectional area of connecting rod.
3. The ring main unit bushing test connecting device of claim 2, wherein: the connecting rod, the nut and the connector are made of red copper materials.
4. The ring main unit bushing test connecting device of claim 3, wherein: the screw thread on the connecting rod is from the one end of connecting rod is played, extremely the middle part of connecting rod is up, pressure spring is established to the cover on the connecting rod, the nut revolve in on the screw thread, pressure spring's both ends respectively with the connector with the nut is contradicted.
5. The ring main unit sleeve test connecting device according to claim 4, wherein: one end of the compression spring is welded on the connecting head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222363003.4U CN218546805U (en) | 2022-09-06 | 2022-09-06 | Looped netowrk cabinet sleeve pipe test connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222363003.4U CN218546805U (en) | 2022-09-06 | 2022-09-06 | Looped netowrk cabinet sleeve pipe test connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218546805U true CN218546805U (en) | 2023-02-28 |
Family
ID=85271971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222363003.4U Active CN218546805U (en) | 2022-09-06 | 2022-09-06 | Looped netowrk cabinet sleeve pipe test connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218546805U (en) |
-
2022
- 2022-09-06 CN CN202222363003.4U patent/CN218546805U/en active Active
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