CN107462749B - Transformer test clamp - Google Patents
Transformer test clamp Download PDFInfo
- Publication number
- CN107462749B CN107462749B CN201710764847.0A CN201710764847A CN107462749B CN 107462749 B CN107462749 B CN 107462749B CN 201710764847 A CN201710764847 A CN 201710764847A CN 107462749 B CN107462749 B CN 107462749B
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- Prior art keywords
- rod
- locking
- clamp
- cross rod
- transformer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
本发明公开了一种变压器测试钳，涉及电力辅助工具技术领域。测试钳的钳口用于夹紧变压器导电杆，测试钳包括第一钳嘴、与第一钳嘴固定连接的横杆、滑动套装于横杆的外侧的手持柄、固定连接于手持柄上并与第一钳嘴配合夹紧变压器导电杆的第二钳嘴、设于横杆与手持柄之间的用于锁定横杆与手持柄的锁止组件以及设于横杆与手持柄之间的用于调节第一钳嘴和第二钳嘴之间的间距的距离调节组件。本发明提供的变压器测试钳能稳定地夹紧变压器导电杆，保障测量精度。
The invention discloses a transformer test pliers, and relates to the technical field of power auxiliary tools. The jaws of the test pliers are used to clamp the transformer conductive rod, and the test pliers include a first jaw, a cross bar fixedly connected to the first jaw, a hand handle slidably sleeved on the outer side of the cross bar, a second jaw fixedly connected to the hand handle and cooperating with the first jaw to clamp the transformer conductive rod, a locking assembly provided between the cross bar and the hand handle for locking the cross bar and the hand handle, and a distance adjustment assembly provided between the cross bar and the hand handle for adjusting the distance between the first jaw and the second jaw. The transformer test pliers provided by the invention can stably clamp the transformer conductive rod, and ensure the measurement accuracy.
Description
Technical Field
The invention relates to the technical field of electric auxiliary tools, in particular to a transformer test clamp.
Background
Along with the continuous increase of power supply load, the transformer has higher and higher requirements on the load capacity, the diameter of a conductive rod of the transformer becomes larger and larger while the output capacity of the transformer is improved, and a plurality of pressure measuring devices are required to be tested by maintenance staff periodically in order to ensure the safe and stable operation of the transformer. When the insulation resistance or the winding direct current resistance of the transformer winding is carried out, the clamp of the test clamp is related, the caliber of the test clamp is adjustable, the clamp opening of the test clamp is required to clamp the conductive rod of the transformer during testing, the stability is kept, and the test clamp is taken down after the test is completed. In the prior art, the testing clamp cannot stably clamp the transformer conducting rod, and in the testing process, the testing clamp can shake to influence the measuring precision.
Disclosure of Invention
The invention aims to provide a transformer test clamp, which aims to solve the problems that the test clamp cannot stably clamp a transformer conducting rod in the prior art, and the test clamp can shake in the test process to influence the measurement accuracy.
Aiming at the defects in the prior art, the technical problem to be solved is to provide the transformer test clamp, which can stably clamp the conductive rod of the transformer and ensure the measurement accuracy.
In order to solve the technical problems, the technical scheme includes that the transformer testing clamp comprises a first clamp mouth, a cross rod fixedly connected with the first clamp mouth, a handheld handle sleeved on the outer side of the cross rod in a sliding mode, a second clamp mouth fixedly connected to the handheld handle and matched with the first clamp mouth to clamp a transformer conducting rod, a locking component arranged between the cross rod and the handheld handle and used for locking the cross rod and the handheld handle, and a distance adjusting component arranged between the cross rod and the handheld handle and used for adjusting the distance between the first clamp mouth and the second clamp mouth.
Further, the locking assembly comprises a locking rod hinged to the handheld handle and sleeved on the transverse rod and used for being abutted to the pressing cross rod and a locking spring used for connecting the locking rod with the handheld handle, the hinged ends of the locking spring and the locking rod are respectively arranged on the upper side and the lower side of the cross rod, one end of the locking spring is abutted to the locking rod, the other end of the locking spring is abutted to the handheld handle, the locking spring is in a compressed state, and the locking rod locks the cross rod.
Further, the hinged end of the locking rod is provided with a through hole which is in cross sliding connection with the cross rod, and the locking rod is abutted and pressed on the cross rod.
Further, locking springs are provided at the upper and lower sides of the cross bar, respectively.
Further, the distance adjusting assembly comprises a fastening rod hinged on the hand-held handle and used for extruding to drive the cross rod to move and a reset spring arranged between the fastening rod and the hand-held handle and used for connecting the fastening rod and the hand-held handle.
Further, the distance adjusting assembly further comprises an adjusting piece which is abutted against the fastening rod, a through hole for the transverse rod to traverse is formed in the adjusting piece, one end of the reset spring is abutted against the adjusting piece, and the other end of the reset spring is abutted against the handheld handle.
Compared with the prior art, the transformer testing clamp device has the advantages that when the transformer testing clamp device is required to be used for measuring, the distance between the first clamp mouth and the second clamp mouth can be initially adjusted through the locking assembly, the transformer conducting rod is held by the clamping assembly, the cross rod and the handheld rod are initially locked, the distance between the first clamp mouth and the second clamp mouth is further reduced through the distance adjusting assembly, the clamp mouth of the transformer testing clamp device can hold the transformer conducting rod tightly, the cross rod and the handheld rod are locked in the testing process, the testing clamp cannot shake, and the measuring accuracy is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a transformer testing clamp according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure of the transformer test clamp shown in fig. 1.
In the figure, 1, a first clamp mouth, 2, a second clamp mouth, 3, a cross rod, 4, a hand-held handle, 5, a locking rod, 51, a through hole, 6, a locking spring, 7, a fastening rod, 8, a return spring, 9 and an adjusting sheet.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
As shown in fig. 1 and 2, in an embodiment of a transformer testing clamp according to the present invention, the testing clamp includes a first clamp mouth 1, a cross bar 3 fixedly connected with the first clamp mouth 1, a hand-held handle 4 slidably sleeved on the outer side of the cross bar 3, a second clamp mouth 2 fixedly connected to the hand-held handle 4 and clamping a conductive rod of a transformer in cooperation with the first clamp mouth 1, a locking component disposed between the cross bar 3 and the hand-held handle 4 and used for locking the cross bar 3 and the hand-held handle 4, and a distance adjusting component disposed between the cross bar 3 and the hand-held handle 4 and used for adjusting a distance between the first clamp mouth 1 and the second clamp mouth 2.
The locking action of the testing clamp device is divided into two steps, firstly, when the first clamp mouth 1 and the second clamp mouth 2 of the testing clamp hold a transformer conducting rod, preliminary locking is carried out through the locking component, at the moment, the testing clamp cannot completely hold the transformer conducting rod, then, through adjusting the distance adjusting component, the distance between the first clamp mouth 1 and the second clamp mouth 2 is further reduced, the testing clamp holds the transformer conducting rod tightly, the distance adjusting component serves as a fine adjusting component, the testing clamp is helped to hold the transformer conducting rod stably, shaking of the testing clamp in the testing process is avoided, and measurement accuracy is guaranteed.
The locking assembly comprises a locking rod 5 hinged to the handheld handle 4 and sleeved on the cross rod 3 and used for being abutted to compress the cross rod 3, and a locking spring 6 used for connecting the locking rod 5 with the handheld handle 4, wherein the hinged ends of the locking spring 6 and the locking rod 5 are respectively arranged on the upper side and the lower side of the cross rod 3, one end of the locking spring 6 is abutted to the locking rod 5, the other end of the locking spring 6 is abutted to the handheld handle 4, the locking spring 6 is in a compressed state, and the cross rod 3 is locked by the locking rod 5. The locking spring 6 is in a compressed state, the locking rod 5 is tightly pressed at the cross rod 3 and kept in a compressed state, when the jaw size of the test pliers, namely the distance between the first pliers mouth 1 and the second pliers mouth 2, needs to be adjusted, the locking rod 5 is rotated, the compressed state of the locking rod 5 and the cross rod 3 is released, the hand-held handle 4 slides on the cross rod 3, the jaw size of the test pliers can be enlarged or reduced, after the adjustment is in place, the locking rod 5 is put down, the hand-held handle 4 and the cross rod 3 can be locked, and then the distance between the first pliers mouth 1 and the second pliers mouth 2 is locked.
As shown in fig. 2, the hinge end of the locking rod 5 is provided with a through hole 51 which is in cross sliding connection with the cross rod 3, and the locking rod 5 is pressed against the cross rod 3. The locking rod 5 can be provided with a locking lug matched with the cross rod 3, the locking is implemented through the extrusion of an arc-shaped working surface of the locking lug and the cross rod 3, a through hole 51 for locking can also be formed in the locking rod 5, the cross rod 3 penetrates through the through hole 51, the locking rod 5 is obliquely pressed on the cross rod 3 through a locking spring 6, and the fixed jaw 1 and the movable jaw 2 are fixed at intervals.
The locking springs 6 are provided at the upper and lower sides of the cross bar 3, respectively. The two locking springs 6 are arranged on two sides of the cross rod 3 and are respectively symmetrically arranged on the front side and the rear side of the cross rod 3 with the hinge shaft of the locking rod 5, the locking springs 6 can also be respectively arranged on the upper side and the lower side of the cross rod 3, the locking springs 6 on the upper side and the lower side respectively press the locking rod 5 to enable the locking rod 5 to be obliquely pressed on the cross rod 3, and the locking springs 6 are in a compressed state.
The distance adjusting assembly comprises a fastening rod 7 hinged on the hand-held handle 4 and used for extruding to drive the cross rod 3 to move, and a reset spring 8 arranged between the fastening rod 7 and the hand-held handle 4 and used for connecting the fastening rod 7 and the hand-held handle 4. The distance adjusting component is an operation rod which is independently fixed on the cross rod 3, when the locking component locks the cross rod 3 and the handheld handle 4, the operation rod is finely adjusted, the cross rod 3 and the handheld handle 4 relatively move, the first clamp mouth 1 moves towards the second clamp mouth 2, the jaw distance is reduced, the test clamp holding the transformer conducting rod can be converted into a holding state, the test clamp can be guaranteed to be capable of stably holding the conducting rod, shaking is prevented, the distance adjusting component can also be realized by a hinged fastening rod 7, a one-way locking buckle is arranged on the fastening rod 7, after the fastening rod 7 drives the cross rod 3 to move, the distance between the first clamp mouth 1 and the second clamp mouth 2 is reduced, the fastening rod 7 is loosened, the cross rod 3 is still fixed through the locking component, and the test clamp can be guaranteed to be in the holding state.
The distance adjusting component further comprises an adjusting piece 9 which is abutted against the fastening rod 7, a through hole for the transverse rod 3 to traverse is formed in the adjusting piece 9, one end of the reset spring 8 is abutted against the adjusting piece 9, and the other end of the reset spring 8 is abutted against the handheld handle 4. The mode of the unidirectional regulation horizontal pole 3 of fastening rod 7 also accessible increases the mode of regulating plate 9, and horizontal pole 3 suspension is in the through-hole of regulating plate 9, and regulating plate 9 perpendicular to horizontal pole 3, fastening rod 7 rotate, drives regulating plate 9 to slope to spring one end and compresses tightly and drive horizontal pole 3 removal fine setting, realizes that the test pincers clamp conductive rod.
The transformer testing clamp has the advantages that the gap between the jaws of the testing clamp is adjusted through the rotary inclined locking rod, the locking rod is loosened and then is obliquely pressed on the cross rod through the locking rod to perform primary locking, then the gap between the jaws of the testing clamp is finely adjusted through the fastening rod, the testing clamp can clamp the transformer conducting rod, the two-step locking and fixing actions can enable the jaws of the transformer testing clamp to stably clamp the transformer conducting rod, the testing clamp cannot shake in the testing process, the measuring precision is guaranteed, and the jaws of the transformer testing clamp adopt a combination mode of insulating materials and metals to prevent insulation failure at the junction of the jaws and influence the measuring precision.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (3)
1. The transformer testing clamp is used for clamping a transformer conducting rod and is characterized by comprising a first clamp mouth (1), a cross rod (3) fixedly connected with the first clamp mouth (1), a handheld handle (4) sleeved on the outer side of the cross rod (3) in a sliding manner, a second clamp mouth (2) fixedly connected to the handheld handle (4) and matched with the first clamp mouth (1) to clamp the transformer conducting rod, a locking component arranged between the cross rod (3) and the handheld handle (4) and used for locking the cross rod (3) and the handheld handle (4), and a distance adjusting component arranged between the cross rod (3) and the handheld handle (4) and used for adjusting the distance between the first clamp mouth (1) and the second clamp mouth (2);
The locking assembly comprises a locking rod (5) hinged to the handheld handle (4) and sleeved on the cross rod (3) and used for abutting and pressing the cross rod (3) and a locking spring (6) used for connecting the locking rod (5) and the handheld handle (4), the hinged ends of the locking spring (6) and the locking rod (5) are respectively arranged on the upper side and the lower side of the cross rod (3), one end of the locking spring (6) is abutted to the locking rod (5), the other end of the locking spring (6) is abutted to the handheld handle (4), the locking spring (6) is in a compressed state, and the locking rod (5) is locked on the cross rod (3);
the hinge end of the locking rod (5) is provided with a through hole (51) which is in cross sliding connection with the cross rod (3), and the locking rod (5) is pressed on the cross rod (3) in an abutting mode;
The locking springs (6) are respectively arranged on the upper side and the lower side of the cross rod (3).
2. The transformer testing clamp according to claim 1, wherein the distance adjusting assembly comprises a fastening rod (7) hinged on the hand-held handle (4) and used for extruding to drive the cross rod (3) to move, and a reset spring (8) arranged between the fastening rod (7) and the hand-held handle (4) and used for connecting the fastening rod (7) and the hand-held handle (4).
3. The transformer testing clamp according to claim 2, wherein the distance adjusting assembly further comprises an adjusting piece (9) which is abutted against the fastening rod (7), a through hole for the transverse rod (3) to traverse is formed in the adjusting piece (9), one end of the return spring (8) is abutted against the adjusting piece (9), and the other end of the return spring (8) is abutted against the handheld handle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710764847.0A CN107462749B (en) | 2017-08-30 | 2017-08-30 | Transformer test clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710764847.0A CN107462749B (en) | 2017-08-30 | 2017-08-30 | Transformer test clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107462749A CN107462749A (en) | 2017-12-12 |
| CN107462749B true CN107462749B (en) | 2024-12-20 |
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ID=60550829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710764847.0A Active CN107462749B (en) | 2017-08-30 | 2017-08-30 | Transformer test clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107462749B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111398062B (en) * | 2020-04-30 | 2022-09-23 | 重庆万盛福耀玻璃有限公司 | Universal base torsion test connection tool |
| CN112098683B (en) * | 2020-08-04 | 2024-11-01 | 杭州华春科技有限公司 | Antitheft device of pincerlike acquisition terminal |
| CN112462094B (en) * | 2020-11-18 | 2022-05-27 | 贵州电网有限责任公司 | Special test wire clamp for main transformer bushing loop resistance and use method thereof |
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| CN2394759Y (en) * | 1999-10-27 | 2000-09-06 | 陈多才 | Pipe pincers |
| CN203275448U (en) * | 2013-05-21 | 2013-11-06 | 河南省电力公司信阳供电公司 | Power detection clamping |
| CN104999431A (en) * | 2015-08-10 | 2015-10-28 | 瞿洪贵 | Multi-purpose pliers |
| CN207096287U (en) * | 2017-08-30 | 2018-03-13 | 国网河北省电力公司衡水供电分公司 | Transformer testing clamps |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030151478A1 (en) * | 2001-10-02 | 2003-08-14 | Dejan Radosavljevic | Protection device with lockout test |
| CN202134673U (en) * | 2011-01-28 | 2012-02-01 | 李英锋 | High-altitude wiring clamp |
| CN203726398U (en) * | 2013-12-30 | 2014-07-23 | 新疆八一钢铁股份有限公司 | Improved sawtooth pipe vice |
| CN203672921U (en) * | 2014-01-26 | 2014-06-25 | 国家电网公司 | End screen wiring device especially for transformer bushing dielectric loss testing |
| KR101501191B1 (en) * | 2014-08-07 | 2015-04-16 | (주) 서원전설 | Vise Plier for On Load Tap Changer |
-
2017
- 2017-08-30 CN CN201710764847.0A patent/CN107462749B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394759Y (en) * | 1999-10-27 | 2000-09-06 | 陈多才 | Pipe pincers |
| CN203275448U (en) * | 2013-05-21 | 2013-11-06 | 河南省电力公司信阳供电公司 | Power detection clamping |
| CN104999431A (en) * | 2015-08-10 | 2015-10-28 | 瞿洪贵 | Multi-purpose pliers |
| CN207096287U (en) * | 2017-08-30 | 2018-03-13 | 国网河北省电力公司衡水供电分公司 | Transformer testing clamps |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107462749A (en) | 2017-12-12 |
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