CN210294452U - Ultrahigh frequency or ultrasonic wave partial discharge test support for high-voltage cable terminal - Google Patents
Ultrahigh frequency or ultrasonic wave partial discharge test support for high-voltage cable terminal Download PDFInfo
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- CN210294452U CN210294452U CN201920849979.8U CN201920849979U CN210294452U CN 210294452 U CN210294452 U CN 210294452U CN 201920849979 U CN201920849979 U CN 201920849979U CN 210294452 U CN210294452 U CN 210294452U
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Abstract
The utility model discloses a high-voltage cable terminal ultrahigh frequency or ultrasonic wave partial discharge test bracket, which comprises a clamping piece and an insulating operating rod; the clamping piece comprises a bottom plate, a side plate, a top plate and a screw rod, wherein the bottom plate, the side plate and the top plate are sequentially connected to form a C-shaped structure; the top plate is provided with a threaded through hole, one end of the screw rod is connected with the end part of the screw rod section between the bottom plate and the top plate in a threaded manner and extends into the space between the bottom plate and the top plate after penetrating through the threaded through hole, and a pressing plate is arranged at the end part of the screw rod section between the bottom plate and the top plate and is used for clamping the sensor; one end of the insulating operating rod is fixed on the side plate, and the other end of the insulating operating rod is used for handheld operation. The utility model ensures the safety of testing personnel through the insulating operating rod, and realizes the testing work of the ultrahigh frequency and ultrasonic partial discharge by fixing the ultrahigh frequency partial discharge sensor or the ultrasonic partial discharge sensor through the clamping piece and the screw rod; in addition, the insulating operating rod can be made of materials with better insulating property, has higher flashover voltage and further can protect the personal safety of testers during testing.
Description
Technical Field
The utility model relates to an electric power tech field, concretely relates to test support is put in high tension cable terminal superfrequency or ultrasonic wave office.
Background
Ultrahigh frequency and ultrasonic testing of a high-voltage cable terminal requires a tester to hold a probe to be attached to the cable terminal for testing. If the sheath is poorly grounded, the cable sheath and cable termination will be at a floating potential. If the tester adopts the bare-handed mode of traditional mode to test, each position of health such as hand, face probably electrocutes, if adopt the mode of taking insulating gloves, each position of health such as face still is nearer apart from the suspension potential, and the personal safety risk of test is higher. Therefore, there is a need to develop a safer ultrahigh frequency and ultrasonic partial discharge test bracket for a high-voltage cable terminal to ensure the safety of the tester.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: high tension cable terminal superfrequency and ultrasonic testing need the laminating of the handheld probe of tester to test on cable terminal, have great potential safety hazard, the utility model provides a test support is put in high tension cable terminal superfrequency or ultrasonic wave office of solving above-mentioned problem.
The utility model discloses a following technical scheme realizes:
a high-voltage cable terminal ultrahigh frequency or ultrasonic partial discharge test support comprises a clamping piece and an insulating operating rod; the clamping piece comprises a bottom plate, a side plate, a top plate and a screw rod, and the bottom plate, the side plate and the top plate are sequentially connected to form a C-shaped structure; the top plate is provided with a threaded through hole, one end of the screw rod is in threaded connection with the screw rod and penetrates through the threaded through hole to extend into a position between the bottom plate and the top plate, a pressing plate is arranged at the end part of a screw rod section positioned between the bottom plate and the top plate, a sensor is clamped between the pressing plate and the bottom plate, and the sensor comprises an ultrahigh frequency partial discharge detection sensor or an ultrasonic partial discharge detection sensor; one end of the insulating operating rod is fixed on the side plate, and the other end of the insulating operating rod is used for handheld operation.
The utility model ensures the safety of testing personnel through the insulating operating rod, and realizes the testing work of the ultrahigh frequency and ultrasonic partial discharge by fixing the ultrahigh frequency partial discharge sensor or the ultrasonic partial discharge sensor through the clamping piece and the screw rod; in addition, the insulating operating rod can be made of materials with better insulating property, has higher flashover voltage and further can protect the personal safety of testers during testing.
Specifically, the utility model discloses constitute the holder of C type structure by bottom plate, curb plate and roof, during the use, will detect with the sensor earlier and place between bottom plate and clamp plate, then forward or reverse rotation screw rod, the screw rod moves down to drive the clamp plate to move to the bottom plate direction, until the sensor is compressed tightly and fixed between bottom plate and clamp plate; through screw rod and screw thread through-hole adaptation rotation, can realize the fixed of the sensor of different specifications size, flexible operation. When a tester tests, the tester only needs to hold the free end of the insulating operating rod by hand, and the sensor probe fixed on the clamping piece is attached to the cable terminal to test, so that the safety is high.
Furthermore, a groove is formed in the lower plate surface of the pressing plate facing the bottom plate, and an elastic assembly is arranged in the groove; the elastic assembly comprises a positioning tube, a compression spring and a base plate, and one axial end of the positioning tube is fixed on the bottom surface of the groove; one end of the compression spring extends into the positioning tube and then is fixed on the inner bottom surface of the positioning tube, the other end of the compression spring extends out of the positioning tube, a substrate is arranged on the end surface of the compression spring, and the substrate is used for contacting with a clamped sensor; the depth of the groove is equal to the height of the positioning tube less than the natural extension length of the compression spring.
Through set up elastic component under the clamp plate on the face, do benefit to and compress tightly the operation to the sensor of different external shapes, and set up a plurality of registration arms and compression spring in the recess of clamp plate, form a plurality of independent contacts, strong point to sensor surface, do benefit to improvement stability.
Furthermore, a guide post is also arranged in the positioning tube, the guide post is sleeved in the compression spring, and the axial leads of the guide post, the compression spring and the positioning tube are superposed.
Set up the guide post and mainly prevent compression spring card shell, ensure its normal life.
Further, the height of the guide post is smaller than or equal to the height of the positioning tube.
Too high a height of the guide post may affect the cushioning properties of the compression spring.
Furthermore, a plurality of rubber bulges are arranged on the surface of the bottom plate facing the pressing plate, and the rubber bulges are of a hemispherical structure.
Set up a plurality of hemisphere rubber through the face on the bottom plate and protruding to increase bottom plate and sensor surface contact frictional resistance, improve fixed stability.
Furthermore, the screw rod is connected with the pressing plate through a connector, the connector comprises a truncated cone-shaped base body, and a through hole penetrating through the axial direction is formed in the truncated cone-shaped base body; the through holes are sequentially a large-diameter hole and a small-diameter hole along the direction from the bottom surface to the top surface of the truncated cone-shaped base body, and a step structure is formed at the joint of the large-diameter hole and the small-diameter hole; a positioning rod extends axially from the end of the screw rod, and the outer diameter of the positioning rod is larger than that of the screw rod; the positioning rod is embedded into the large-diameter hole for adaptive fixation, and the small-diameter hole is adaptive to the screw rod section; one axial end face of the positioning rod is abutted against the upper plate surface of the pressing plate, and the outer edge of the end face of the other end of the positioning rod is contacted with the step; the bottom surface of the truncated cone-shaped base body is fixed on the pressing plate.
During the use, pass the through-hole with screw rod one end, until the locating lever embedding major diameter downthehole of the screw rod other end, and the card is established in step department, then pass the screw rod the tip of through-hole at threaded connection and pass the screw through-hole on the roof and realize quick installation.
Furthermore, an installation ring plate is arranged on the side wall of the bottom end of the truncated cone-shaped base body along the circumferential direction, and the truncated cone-shaped base body penetrates through the installation ring plate through bolts and is fixed on the upper plate surface of the pressing plate.
An annular groove can be formed in the upper plate surface of the pressing plate and used for being embedded into the installation ring plate, and the invisible installation of the installation ring plate is achieved.
Further, insulating bar includes connecting cylinder and action bars, the one end of connecting cylinder is fixed on the outer face of curb plate, and the one end threaded connection of action bars stretches into in the connecting cylinder.
Constitute insulating bar by connecting cylinder and action bars threaded connection, do benefit to according to the tester needs, prolong or shorten insulating bar effective working length, convenient nimble operation.
The utility model discloses have following advantage and beneficial effect:
the utility model ensures the safety of testing personnel through the insulating operating rod, and realizes the testing work of the ultrahigh frequency and ultrasonic partial discharge by fixing the ultrahigh frequency partial discharge sensor or the ultrasonic partial discharge sensor through the clamping piece and the screw rod; in addition, the insulating operating rod can be made of materials with better insulating property, has higher flashover voltage and further can protect the personal safety of testers during testing.
The utility model comprises a clamping piece with a C-shaped structure consisting of a bottom plate, a side plate and a top plate, when in use, a sensor for detection is firstly arranged between the bottom plate and a pressing plate, then a screw rod is rotated forward or reversely, the screw rod moves downwards and drives the pressing plate to move towards the bottom plate until the sensor is tightly pressed and fixed between the bottom plate and the pressing plate; through screw rod and screw thread through-hole adaptation rotation, can realize the fixed of the sensor of different specifications size, flexible operation. When a tester tests, the tester only needs to hold the free end of the insulating operating rod by hand, and the sensor probe fixed on the clamping piece is attached to the cable terminal to test, so that the safety is high.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the pressing plate of the present invention;
fig. 3 is a schematic view of the cross-sectional structure of the connector of the present invention.
Reference numbers and corresponding part names in the drawings: 1-clamping piece, 2-insulating operating rod, 11-bottom plate, 12-side plate, 13-top plate, 14-screw rod, 15-threaded through hole, 16-pressing plate, 17-groove, 18-elastic component, 181-positioning tube, 182-compression spring, 183-base plate, 184-guide column, 19-rubber bulge, 110-connector, 111-truncated cone-shaped base body, 112-through hole, 113-positioning rod, 114-mounting ring plate, 115-handle, 21-connecting cylinder and 22-operating rod.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
The embodiment provides a high-voltage cable terminal ultrahigh-frequency or ultrasonic partial discharge test support which comprises a clamping piece 1 and an insulating operating rod 2; the clamping piece 1 comprises a bottom plate 11, side plates 12, a top plate 13 and a screw 14, wherein the bottom plate 11, the side plates 12 and the top plate 13 are all rectangular plate structures, and the bottom plate 11, the side plates 12 and the top plate 13 are sequentially connected to form a C-shaped structure; the top plate 13 is provided with a threaded through hole 15, one end of the screw 14 penetrates through the threaded through hole 15 in a threaded manner and then extends into a position between the bottom plate 11 and the top plate 13, a pressing plate 16 is arranged at the end part of the rod section of the screw 14 positioned between the bottom plate 11 and the top plate 13, and the bottom plate 11, the pressing plate 16 and the top plate 13 are parallel to each other. A sensor is clamped between the pressing plate 16 and the bottom plate 11 and comprises an ultrahigh frequency partial discharge detection sensor or an ultrasonic partial discharge detection sensor; one end of the insulating operating rod 2 is fixed on the side plate 12, and the other end is used for handheld operation.
Example 2
The improvement is further improved on the basis of the embodiment 1, a groove 17 is formed in the lower plate surface, facing the bottom plate 11, of the pressing plate 16, the groove 17 is also in a rectangular groove structure, and an elastic component 18 is arranged in the groove 17; the elastic component comprises a positioning pipe 181, a compression spring 182 and a base plate 183, the positioning pipe 181 is of a cylindrical structure, and one axial end of the positioning pipe 181 is fixed on the bottom surface of the groove 17; one end of the compression spring 182 extends into the positioning tube 181 and then is fixed on the inner bottom surface of the positioning tube 181, the other end of the compression spring 182 extends out of the positioning tube 181, a substrate 183 is arranged on the end surface, and the substrate 183 is used for contacting with a clamped sensor; the depth of the groove 17 is equal to the height of the positioning tube 181 < the natural extension length of the compression spring 182. A cylindrical guide post 184 is further arranged in the positioning tube 181, the guide post 184 is sleeved in the compression spring 182, and the axial lines of the guide post 184, the compression spring 182 and the positioning tube 181 are overlapped. The height of the guide post 184 is less than or equal to the height of the positioning tube 181. The surface of the bottom plate 11 facing the pressure plate 16 is provided with a plurality of rubber bulges 19 arranged in an array, and the rubber bulges 19 are in a hemispherical structure.
Example 3
The embodiment 2 is further improved, the screw 14 is connected with the pressure plate 16 through a connector 110, the connector 110 comprises a truncated cone-shaped base 111, and a through hole 112 penetrating through the axial direction is formed in the truncated cone-shaped base 111; along the direction from the bottom surface to the top surface of the truncated cone-shaped base 111, the through holes 112 are sequentially large-diameter holes and small-diameter holes, and the joint of the large-diameter holes and the small-diameter holes is in a step structure; a positioning rod 113 extends from the end of the screw 14 along the axial direction, and the outer diameter of the positioning rod 113 is larger than that of the screw 14; the positioning rod 113 is embedded into the large-diameter hole for adaptive fixation, and the small-diameter hole is adaptive to the 14 rod section of the screw; one axial end face of the positioning rod 113 is abutted against the upper plate surface of the pressing plate 16, and the outer edge of the end face of the other end is contacted with the step; the bottom surface of the truncated cone-shaped base 111 is fixed on the pressing plate 16. An installation ring plate 114 is arranged on the side wall of the bottom end of the truncated cone-shaped base body 111 along the circumferential direction, and the truncated cone-shaped base body 111 penetrates through the installation ring plate 114 through bolts to be fixed on the upper plate surface of the pressure plate 16. The insulating operating rod 2 comprises a connecting cylinder 21 and an operating rod 22, one end of the connecting cylinder 21 is fixed on the outer plate surface of the side plate 12, and one end of the operating rod 22 is connected with threads and extends into the connecting cylinder 21.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A high-voltage cable terminal ultrahigh-frequency or ultrasonic partial discharge test support is characterized by comprising a clamping piece (1) and an insulating operating rod (2); the clamping piece (1) comprises a bottom plate (11), a side plate (12), a top plate (13) and a screw (14), wherein the bottom plate (11), the side plate (12) and the top plate (13) are sequentially connected to form a C-shaped structure; a threaded through hole (15) is formed in the top plate (13), one end of the screw rod (14) penetrates through the threaded through hole (15) in a threaded connection mode and then extends into a position between the bottom plate (11) and the top plate (13), a pressing plate (16) is arranged at the end portion of a rod section of the screw rod (14) located between the bottom plate (11) and the top plate (13), a sensor is clamped between the pressing plate (16) and the bottom plate (11), and the sensor comprises an ultrahigh frequency partial discharge detection sensor or an ultrasonic partial discharge detection sensor; one end of the insulating operating rod (2) is fixed on the side plate (12), and the other end of the insulating operating rod is used for handheld operation.
2. The ultrahigh frequency or ultrasonic partial discharge test support for the high-voltage cable terminal according to claim 1, wherein a groove (17) is formed in a lower plate surface of the pressing plate (16) facing the bottom plate (11), and an elastic component (18) is arranged in the groove (17); the elastic assembly comprises a positioning pipe (181), a compression spring (182) and a base plate (183), and one axial end of the positioning pipe (181) is fixed on the bottom surface of the groove (17); one end of a compression spring (182) extends into the positioning tube (181) and then is fixed on the inner bottom surface of the positioning tube (181), the other end of the compression spring (182) extends out of the positioning tube (181), a substrate (183) is arranged on the end surface, and the substrate (183) is used for contacting with a clamped sensor; the depth of the groove (17) is equal to the height of the positioning tube (181) and less than the natural extension length of the compression spring (182).
3. The ultrahigh frequency or ultrasonic partial discharge test bracket for the high-voltage cable terminal as claimed in claim 2, wherein a guide post (184) is further arranged in the positioning tube (181), the guide post (184) is sleeved in the compression spring (182), and axial lines of the guide post (184), the compression spring (182) and the positioning tube (181) are overlapped.
4. The UHF or ultrasonic partial discharge test fixture for high voltage cable terminations as claimed in claim 3, wherein the height of the guide posts (184) is less than or equal to the height of the positioning tube (181).
5. The ultrahigh frequency or ultrasonic partial discharge test support for the high-voltage cable terminal as claimed in claim 1, wherein a plurality of rubber protrusions (19) are arranged on the surface of the bottom plate (11) facing the pressure plate (16), and the rubber protrusions (19) are in a hemispherical structure.
6. The ultrahigh frequency or ultrasonic partial discharge test support for the high-voltage cable terminal according to claim 1, wherein the screw rod (14) is connected with the pressure plate (16) through a connector (110), the connector (110) comprises a truncated cone-shaped base body (111), and a through hole (112) penetrating through the axial direction is formed in the truncated cone-shaped base body (111); in the direction from the bottom surface to the top surface of the truncated cone-shaped base body (111), the through holes (112) are sequentially large-diameter holes and small-diameter holes, and the connecting positions of the large-diameter holes and the small-diameter holes are in a step structure; a positioning rod (113) extends from the end of the screw rod (14) along the axial direction, and the outer diameter of the positioning rod (113) is larger than that of the screw rod (14); the positioning rod (113) is embedded into the large-diameter hole for adaptive fixation, and the small-diameter hole is adaptive to the rod section of the screw (14); one axial end face of the positioning rod (113) is abutted against the upper plate surface of the pressing plate (16), and the outer edge of the end face of the other end of the positioning rod is contacted with the step; the bottom surface of the truncated cone-shaped base body (111) is fixed on the pressing plate (16).
7. The ultrahigh frequency or ultrasonic partial discharge test support for the high-voltage cable terminal according to claim 6, wherein a mounting ring plate (114) is circumferentially arranged on a side wall of the bottom end of the truncated cone-shaped base body (111), and the truncated cone-shaped base body (111) is fixed on an upper plate surface of the pressure plate (16) through bolts penetrating through the mounting ring plate (114).
8. The ultrahigh frequency or ultrasonic partial discharge test support for the high-voltage cable terminal according to claim 1, wherein the insulating operating rod (2) comprises a connecting cylinder (21) and an operating rod (22), one end of the connecting cylinder (21) is fixed on the outer plate surface of the side plate (12), and one end of the operating rod (22) is in threaded connection and extends into the connecting cylinder (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920849979.8U CN210294452U (en) | 2019-06-05 | 2019-06-05 | Ultrahigh frequency or ultrasonic wave partial discharge test support for high-voltage cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920849979.8U CN210294452U (en) | 2019-06-05 | 2019-06-05 | Ultrahigh frequency or ultrasonic wave partial discharge test support for high-voltage cable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210294452U true CN210294452U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920849979.8U Expired - Fee Related CN210294452U (en) | 2019-06-05 | 2019-06-05 | Ultrahigh frequency or ultrasonic wave partial discharge test support for high-voltage cable terminal |
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| Country | Link |
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| CN (1) | CN210294452U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660135A (en) * | 2020-06-24 | 2020-09-15 | 广州百畅信息科技有限公司 | Environment-friendly garbage collection structure for digit control machine tool |
| CN112505368A (en) * | 2020-12-02 | 2021-03-16 | 孙玉珍 | Single-channel multifunctional partial discharge inspection instrument and inspection method thereof |
| CN113484554A (en) * | 2021-07-15 | 2021-10-08 | 贵州电网有限责任公司 | Experimental terminal box of electric energy meter |
| CN116482419A (en) * | 2023-04-28 | 2023-07-25 | 国网冀北电力有限公司唐山供电公司 | Test bench for simulating live temperature faults of high-voltage cable terminal |
-
2019
- 2019-06-05 CN CN201920849979.8U patent/CN210294452U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660135A (en) * | 2020-06-24 | 2020-09-15 | 广州百畅信息科技有限公司 | Environment-friendly garbage collection structure for digit control machine tool |
| CN112505368A (en) * | 2020-12-02 | 2021-03-16 | 孙玉珍 | Single-channel multifunctional partial discharge inspection instrument and inspection method thereof |
| CN113484554A (en) * | 2021-07-15 | 2021-10-08 | 贵州电网有限责任公司 | Experimental terminal box of electric energy meter |
| CN116482419A (en) * | 2023-04-28 | 2023-07-25 | 国网冀北电力有限公司唐山供电公司 | Test bench for simulating live temperature faults of high-voltage cable terminal |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 Termination date: 20210605 |