CN212031532U - Novel rotary clamping type current loop test terminal jointing clamp - Google Patents
Novel rotary clamping type current loop test terminal jointing clamp Download PDFInfo
- Publication number
- CN212031532U CN212031532U CN201921901450.2U CN201921901450U CN212031532U CN 212031532 U CN212031532 U CN 212031532U CN 201921901450 U CN201921901450 U CN 201921901450U CN 212031532 U CN212031532 U CN 212031532U
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- ring
- cross screwdriver
- clamping
- head
- current loop
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Abstract
The utility model discloses a novel rotary clamping type current loop test terminal jointing clamp, which comprises a U-shaped fork hook, a wire plugging handle, a cross screwdriver and a fixing frame; the head part of the U-shaped fork hook head is provided with a U-shaped groove, the middle part of the U-shaped fork hook head is raised, and the raised part is provided with a clamping groove; the tail part of the U-shaped fork hook head is provided with a U-shaped joint; the wire inserting handle is provided with a wire inserting hole; the front end of the wire inserting hole is provided with a limiting block; the U-shaped joint is connected with a limiting block; the middle part of the tool bar of the cross screwdriver is provided with a slip ring; the middle part of the slip ring is connected with the head part of the fixed frame; the tail part of the fixing frame is inserted into the clamping groove; the cross screwdriver is further provided with a clamping ring, and the clamping ring is arranged behind the sliding ring. The utility model discloses satisfy the actual demand of power production, improve work efficiency, reduced the risk of the experimental operation of relay protection.
Description
Technical Field
The utility model belongs to the technical field of electrical engineering, concretely relates to experimental binding clip of relay protection current loop.
Background
After the relay protection tester throws away the terminal strip connecting sheet before testing, the test wire is required to be connected into the terminal strip for a dosage test. At present, the following methods are mainly used: 1) the crocodile clip wiring method is characterized in that a common crocodile clip is directly used for clipping an exposed metal part of a terminal block, but due to the design defect of the terminal block, the common crocodile clip cannot be used for fast and effectively clipping, and has the defects that the common crocodile clip is easy to fall off under slight stress after clipping, the contact surface is small, the wire clipping time is long, two adjacent clips are easy to contact with each other to form a short circuit and the like; 2) the method is simple and effective, but has long operation time, increases the workload of filling in a secondary measure list, and improves the risk of relay protection misconnection; 3) the method has the advantages that the short cable core is connected into the terminal strip through the screws, the short cable core is screwed down and fixed through the screws, then the test wire is connected into the terminal strip through the alligator clip, the method is quick in order adding, the cable core is not easy to find, the test wire is not easy to store for multiple times after the test is completed, and the like. When the relay protection device is debugged, after an external circuit is isolated at a current loop, a test wiring of an instrument is clamped at a terminal row through an alligator clip for a quantitative test. However, most of the current loop terminal blocks do not have clamping parts reserved for the alligator clip in the factory design, so that the clip can only be clamped at the spare screw of the current loop or the stub can be fastened at the spare screw and then the test wire is clamped at the stub through the alligator clip in an adding manner, the clip is easy to fall off or loosen due to insufficient clamping force, and the stub is time-consuming and labor-consuming due to overlong short wire fastening time, so that the working efficiency is influenced. Through making a novel rotary clamping type current loop test terminal binding clip, the working efficiency is improved, and the relay protection test operation risk is reduced.
Disclosure of Invention
In order to overcome the not enough of prior art, the utility model provides a can improve work efficiency and can reduce the experimental operation risk's of relay protection novel rotatory clamp type current loop test terminal binding clip again.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
a novel rotary clamping type current loop test terminal jointing clamp comprises a U-shaped fork hook head, a wire plugging handle, a cross screwdriver and a fixing frame; the head part of the U-shaped fork hook head is provided with a U-shaped groove, the middle part of the U-shaped fork hook head is raised, and the raised part is provided with a clamping groove; the tail part of the U-shaped fork hook head is provided with a U-shaped joint; the wire inserting handle is provided with a wire inserting hole; the front end of the wire inserting hole is provided with a limiting block; the U-shaped joint is connected with a limiting block; the middle part of the tool bar of the cross screwdriver is provided with a slip ring; the middle part of the slip ring is connected with the head part of the fixed frame; the tail part of the fixing frame is inserted into the clamping groove; the cross screwdriver is also provided with a clamping ring, and the clamping ring is arranged behind the sliding ring; a return spring is arranged between the slip ring and the snap ring; the front end of the return spring is sleeved with the tail of the sliding ring to prop against the head of the fixed frame; the rear end of the reset spring is provided with a rotating ring, and the rotating ring is in contact connection with the clamping ring. The cutter bar slip ring can slide on the cutter bar of the cross screwdriver; the fixed frame can slide together with the cutter bar slip ring; the rotary ring is contacted with the clamping ring so as to achieve the effect of resetting the cutter bar of the cross screwdriver; the snap ring can clamp the return spring to limit the return spring; the clamping groove can facilitate the pulling out and inserting of the cross screwdriver; the reset spring does not rotate when the tool bar of the cross screwdriver rotates. In the experimental wiring process of relay protection, when meetting the terminal row that does not have the test wire slot, the experimental terminal binding clip of novel rotatory clamp type current loop can accomplish experimental double-layered line in five seconds.
As further technical improvement, an insulating sheath I is arranged at the front end of the cross screwdriver; the insulating sheath I is arranged in front of the slip ring; the tail part of the cross screwdriver is provided with an insulating sheath II; and the insulating sheath II is sleeved to the snap ring. The insulation sheath I isolates the U-shaped fork hook head from the cross screwdriver; the insulating sheath II can further isolate the cross screwdriver from the human body.
As a further technical improvement, the fixing frame is in a sheet shape, and a bending part is arranged in the middle (namely the head part and the tail part are arranged at a certain angle). The fixing frame is in a sheet shape, so that the weight of the device can be reduced; the middle of the fixing frame is provided with a bending part for ensuring that the tool bit can be aligned to the U-shaped groove of the U-shaped fork hook head when the cross screwdriver is pressed.
As a further technical improvement, the contact surfaces of the rotating ring and the clamping ring are smooth. The contact surfaces of the rotating ring and the clamping ring are smooth so as to ensure that the rotating ring and the clamping ring can rotate relatively and the friction is small.
As a further technical improvement, two limiting blocks are respectively oppositely arranged at the front end of an inner hole of the wire inserting handle; two limiting block end faces are respectively connected to two sides of the U-shaped joint. The limiting block can limit the U-shaped joint, so that the U-shaped joint cannot rotate and is not easy to fall off.
As a further technical improvement, the tool bar of the cross screwdriver moves and rotates in the slip ring; or the cutter bar of the cross screwdriver is fixedly connected with the sliding ring, and the sliding ring moves and rotates in the fixed frame.
The utility model discloses a theory of operation:
during wiring, an operator forks the U-shaped groove of the U-shaped fork hook head on the screw cap of the terminal row, slightly presses the cross screwdriver downwards, clockwise rotates the cross screwdriver after the tool bit of the cross screwdriver is aligned with the cross of the screw so as to fasten the screw and further clamp the U-shaped groove, the cross screwdriver resets under the action of the reset spring, and then inserts a test wire into the wire insertion hole to complete the access of the wire clamp; when the wire is removed, the test wire is pulled out, and an operator slightly presses the cross screwdriver downwards; after the tool bit of the cross screwdriver is aligned with the cross of the screw, the cross screwdriver is rotated anticlockwise to loosen the screw and further loosen the U-shaped groove of the U-shaped fork hook head, and the cross screwdriver is reset under the action of the reset spring.
Compared with the prior art, the utility model has the advantages and beneficial effect as follows:
1. the utility model discloses press from both sides tight back contact surface big, the risk is low, is difficult for droing, provides convenient and fast, safe efficient test condition for relay protection personnel test wiring.
2. The utility model discloses can satisfy the actual demand of power production, save extensive application cost.
3. The utility model provides high efficiency that the maintenance was protected to the continuation has ensured safe, reliable, the economic operation of equipment.
4. The utility model discloses simple structure, convenient to use, the maintenance of being convenient for.
Drawings
Fig. 1 is a schematic plan view of the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the present invention.
FIG. 3 is a schematic side view of the structure of the present invention
Fig. 4 is a schematic view of a terminal block structure.
The attached drawings are as follows:
1-U-shaped fork head, 2-wire inserting handle, 3-return spring, 4-cross screwdriver, 5-fixing frame, 6-insulating sheath I, 7-cutter bar sliding ring, 8-clamping groove, 9-rotating ring, 10-insulating sheath II, 11-clamping ring, 12-U-shaped joint, 13-limiting block, 14-wire inserting hole, 15-terminal row and 16-screw.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1:
a novel rotary clamping type current loop test terminal jointing clamp comprises a U-shaped fork hook head 1, a wire plugging handle 2, a cross screwdriver 4 and a fixing frame 5; the head part of the U-shaped fork head 1 is provided with a U-shaped groove, the middle part of the U-shaped fork head is raised, and the raised part is provided with a clamping groove 8; the tail part of the U-shaped fork head 1 is provided with a U-shaped joint 12; the wire inserting handle 2 is provided with a wire inserting hole 14; the front end of the wire inserting hole 14 is provided with a limiting block 13; the U-shaped joint 12 is connected with a limiting block 13; the middle part of the tool bar of the cross screwdriver 4 is provided with a slip ring 7; the middle part of the slip ring 7 is connected with the head part of the fixed frame 5; the tail part of the fixing frame 5 is inserted into the clamping groove 8; the cross screwdriver 4 is also provided with a clamping ring 11, and the clamping ring 11 is arranged behind the sliding ring 7; a return spring 3 is arranged between the slip ring 7 and the snap ring 11; the front end of the return spring 3 is sleeved with the tail part of the sliding ring 7 and is propped against the head part of the fixed frame 5; the rear end of the return spring 3 is provided with a rotary ring 9, and the rotary ring 9 is in contact connection with a snap ring 11. The cutter bar slip ring 7 can slide on the cutter bar of the cross screwdriver 4; the fixed frame 5 can slide together with the cutter bar slip ring 7; the rotary ring 9 is contacted with the snap ring 11 to play a role in resetting the cutter bar of the cross screwdriver 4; the snap ring 11 can clamp the return spring 3 to limit the position of the return spring; the clamping groove 8 can facilitate the extraction and insertion of the cross screwdriver 4; the reset spring 3 does not rotate when the tool bar of the cross screwdriver 4 rotates. In the experimental wiring process of relay protection, when meetting the terminal row 15 that does not have the test wire slot, the experimental terminal binding clip of novel rotatory clamp-type current circuit can accomplish experimental double-layered line in five seconds.
During wiring, an operator clamps the U-shaped groove of the U-shaped fork hook head 1 on the screw cap of the screw 16 of the terminal row 15, slightly presses the cross screwdriver 4 downwards, and after the tool bit of the cross screwdriver 4 is aligned with the cross of the screw 16, the cross screwdriver 4 is rotated clockwise to fasten the screw 16 and clamp the U-shaped groove, the cross screwdriver 4 resets under the action of the reset spring 3, and then a test wire is inserted into the wire insertion hole 14 to complete the access of the wire clamp; when the wire is removed, the test wire is pulled out, and an operator slightly presses the cross screwdriver 4 downwards; after the tool bit of the cross screwdriver 4 is aligned with the cross of the screw 16, the cross screwdriver 4 is rotated anticlockwise so as to loosen the screw 16 and further loosen the U-shaped groove of the U-shaped fork hook head 1, and the cross screwdriver 4 is reset under the action of the reset spring 3.
Example 2:
the front end of the cross screwdriver 4 is provided with an insulating sheath I6; the insulating sheath I6 is arranged in front of the slip ring 7; the tail part of the cross screwdriver 4 is provided with an insulating sheath II 10; the insulating sheath II 10 is sleeved to the position of the snap ring 11. The insulation sheath I6 isolates the U-shaped fork head 1 from the cross screwdriver 4; the insulating sheath II 10 can further isolate the cross screwdriver 4 from a human body.
The fixing frame is in a sheet shape, and a bending part is arranged in the middle of the fixing frame. The fixing frame 5 is in a sheet shape, so that the weight of the device can be reduced; the middle of the fixing frame 5 is provided with a bending part for ensuring that the tool bit can be aligned to the U-shaped groove of the U-shaped fork hook head 1 when the cross screwdriver 4 is pressed. The tool bar of the cross screwdriver 4 is fixedly connected with a slip ring 7, and the slip ring 7 moves and rotates in the fixed frame 5
The working principle of this embodiment is the same as that of embodiment 1
Example 3:
the contact surfaces of the rotating ring 9 and the snap ring contact 11 are smooth. The contact surfaces of the rotating ring 9 and the clamping ring 11 are smooth so as to ensure that the rotating ring 9 and the clamping ring 11 can rotate relatively and the friction is small.
The limiting block 13 is provided with two blocks which are oppositely arranged at the front end of an inner hole 14 of the wire inserting handle 2 respectively; two sides of the U-shaped joint 12 are respectively connected with the end faces of the two limiting blocks 13. The limiting block 13 can limit the U-shaped joint 12, so that the U-shaped joint cannot rotate and is not easy to fall off.
The tool shank of the Phillips screwdriver 4 moves and rotates in the slip ring 7.
The working principle of this embodiment is the same as embodiment 2.
Claims (6)
1. The utility model provides a novel rotatory clamp type current loop test terminal binding clip which characterized in that: comprises a U-shaped fork head (1), a wire inserting handle (2), a cross screwdriver (4) and a fixing frame (5); the head part of the U-shaped fork hook head (1) is provided with a U-shaped groove, the middle part of the U-shaped fork hook head is raised, and a clamping groove (8) is arranged at the raised part; the tail part of the U-shaped fork hook head (1) is provided with a U-shaped joint (12); the wire inserting handle (2) is provided with a wire inserting hole (14); the front end of the wire inserting hole (14) is provided with a limiting block (13); the U-shaped joint (12) is connected with a limiting block (13); the middle part of the cutter bar of the cross screwdriver (4) is provided with a slip ring (7); the middle part of the slip ring (7) is connected with the head part of the fixed frame (5); the tail part of the fixing frame (5) is inserted into the clamping groove (8); the cross screwdriver (4) is also provided with a clamping ring (11), and the clamping ring (11) is arranged behind the sliding ring (7); a return spring (3) is arranged between the slip ring (7) and the snap ring (11); the front end of the return spring (3) is sleeved with the tail of the sliding ring (7) and props against the head of the fixed frame (5); the rear end of the reset spring (3) is provided with a rotating ring (9), and the rotating ring (9) is in contact connection with the clamping ring (11).
2. The novel rotary clamping type current loop test terminal binding clip of claim 1, wherein: the front end of the cross screwdriver (4) is provided with an insulating sheath I (6); the insulating sheath I (6) is arranged in front of the slip ring (7); the tail part of the cross screwdriver (4) is provided with an insulating sheath II (10); the insulating sheath II (10) is sleeved to the clamping ring (11).
3. The novel rotary clamping type current loop test terminal binding clip as claimed in claim 1 or 2, wherein: the fixing frame (5) is in a sheet shape, and a bending part is arranged in the middle.
4. The novel rotary clamping type current loop test terminal binding clip of claim 1, wherein: the contact surfaces of the rotating ring (9) and the clamping ring (11) are smooth.
5. The novel rotary clamping type current loop test terminal binding clip of claim 1, wherein: the two limiting blocks (13) are respectively oppositely arranged at the front ends of the inner holes of the wire inserting handles (2); two sides of the U-shaped joint (12) are respectively connected with the end faces of the two limiting blocks (13).
6. The novel rotary clamping type current loop test terminal binding clip of claim 1, wherein: the cutter bar of the cross screwdriver (4) moves and rotates in the slip ring (7); or the cutter bar of the cross screwdriver (4) is fixedly connected with a sliding ring (7), and the sliding ring (7) moves and rotates in the fixed frame (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921901450.2U CN212031532U (en) | 2019-11-06 | 2019-11-06 | Novel rotary clamping type current loop test terminal jointing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921901450.2U CN212031532U (en) | 2019-11-06 | 2019-11-06 | Novel rotary clamping type current loop test terminal jointing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212031532U true CN212031532U (en) | 2020-11-27 |
Family
ID=73479133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921901450.2U Withdrawn - After Issue CN212031532U (en) | 2019-11-06 | 2019-11-06 | Novel rotary clamping type current loop test terminal jointing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212031532U (en) |
-
2019
- 2019-11-06 CN CN201921901450.2U patent/CN212031532U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20201127 Effective date of abandoning: 20230918 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20201127 Effective date of abandoning: 20230918 |