JP3004492U - Multi-needle electrode clamp - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a multi-needle electrode clamp capable of carrying a large current such as a short circuit current. [Structure] A multi-band 3 made of a conductive material is mounted on a tightening nut 2 mounted on a hollow cylindrical receiver 1 attached to the base of a clamp body, and an inner wall surface of the hollow cylindrical receiver and a tightening nut. The contact resistance is reduced by pressing and contacting the outer wall surface of the device at multiple points.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 In order to perform uninterruptible work under a live line in a high-voltage power distribution line, etc., this device breaks through the insulator of the live line with a needle electrode and electrically connects them to prevent a power failure in the construction area. This relates to a multi-needle electrode clamp used when creating a bypass circuit for supplying electric power, and more specifically to the structure of a multi-needle electrode clamp devised so that it can carry large currents such as short circuit current. is there.

[0002]

[Prior art]

 Conventionally, a multi-needle electrode type clamp having a structure shown in FIG. 1 has been used in appearance, but the conventional hollow cylindrical receiver 1 has a hollow cylindrical receiver 1 as shown in FIG. Since there is a gap 16 between the inner wall surface and the outer wall surface of the tightening nut 2, and the current passage was flowing from the screw rod 17 to the bypass circuit through the contact parts on both ends of the tightening nut 2, the electric resistance was extremely large, and the kiloampere was used. It had the drawback that it could not carry a large current such as a short-circuit current.

[0003]

[Problems to be solved by the device]

 The present invention has been made in order to solve the drawbacks described in the prior art, and an object thereof is to provide a multi-needle electrode type clamp that can carry a large current such as a short-circuit current.

[0004]

[Means for Solving the Problems]

 The multi-band is mounted on the tightening nut mounted on the hollow cylindrical receiver, and the inner wall surface of the hollow cylindrical receiver and the outer wall surface of the tightening nut are pressed and contacted at multiple points to reduce the electrical resistance. .

[0005]

[Action]

 The contact resistance between the inner wall surface of the hollow cylindrical receiver and the outer wall surface of the tightening nut was reduced by more than two digits compared to the conventional method, and it is now possible to pass a current of more than two orders of magnitude.

[0006]

【Example】

 Referring to the drawings showing an example of the embodiment of the present invention, a retaining ring 4 is attached to the inner surface of the distal end of a hollow cylindrical receiver 1, and then a wrinkled multi-band 3 made of a conductive material such as brass is provided on the outer periphery. The tightening nut 2 attached with is attached, the retaining ring 4 is attached next, the spring washer 5 is attached next, and the receiving nut 6 is finally screwed. In addition, 7 is a threaded portion screwed into the screw rod 17, 8 is a threaded portion engraved on the outer periphery of the receiving nut 6 and the inner surface of the receiving tool 1, 9 is a key fixing screw, 10 is a receiving tool fixing screw, and 11 is A flat washer, 12 is a spring washer, 13 is a terminal fixing bolt, 14 is a main body clamp, 15 is a horizontal pin, and 18 is a needle electrode.

[0007] Since the multi-band currently in practical use has a specified current capacity per fold, a multi-band having a number of folds that can handle a large current such as a short-circuit current is selected and used. It is necessary to.

[0008]

【effect】

 Since the present invention is configured as described above, it has the effect of being able to carry a large current such as a short-circuit current, and has a simple structure. It has the effect that it can be easily improved as possible, and its industrial value is high.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the invention.

FIG. 2 is an assembly diagram showing an embodiment of the device.

FIG. 3 is a sectional view of a receiver showing an embodiment of the invention.

FIG. 4 is a sectional view of a receiver showing a conventional embodiment.

[Explanation of symbols]

 1 receiver 2 tightening nut 3 multi-band 4 retaining ring 5 spring washer 6 receiver nut 7 screw part 8 screw part 9 key fixing screw 10 receiver fixing screw 11 plain washer 12 spring washer 13 terminal fixing bolt 14 clamp body 15 parallel pin 16 gap 17 threaded rod

Claims (1)

[Scope of utility model registration request] 1. A multi-band (3) is mounted on a tightening nut (2) mounted on a hollow cylindrical receiver (1),
A multi-needle electrode type clamp characterized in that the inner wall surface of the hollow cylindrical receiver (1) and the outer wall surface of the tightening nut (2) are in pressure contact with each other at multiple points.