CN210349671U

CN210349671U - Wire clamp for isolating switch

Info

Publication number: CN210349671U
Application number: CN201921546843.6U
Authority: CN
Inventors: 潘政瑞; 钱乐丹; 张丁可
Original assignee: Dahua Intelligent Technology Co Ltd
Current assignee: Dahua Intelligent Technology Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-04-17
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a fastener for isolator, including the fastener body, the fastener body includes wiring block and installation arm, one side that the wiring block deviates from the installation arm is provided with the wiring groove, wiring block up end threaded connection has the terminal bolt, the wiring block up end is provided with locking subassembly, locking subassembly includes and is connected and encircles the locking section of thick bamboo in the terminal bolt outside with the wiring block up end, locking section of thick bamboo upper end opening part is provided with locking lid, locking lid is connected with the locking post that the locking section of thick bamboo inner wall was hugged closely to the outer wall towards one side of locking section of thick bamboo, locking post one end top is tight terminal bolt upper end, wear to be equipped with the closed round pin between locking section of thick bamboo and the locking post jointly. Put into the wiring groove with the cable in, the binding bolt screws, will prevent locking lid at the opening part of locking section of thick bamboo after that for the tight binding bolt in one end top of locking post prevents that the binding bolt is not hard up, will close the round pin at last and penetrate the locking section of thick bamboo, fixes locking post in the locking section of thick bamboo, labour saving and time saving.

Description

Wire clamp for isolating switch

Technical Field

The utility model relates to a technical field of fastener, in particular to fastener for isolator.

Background

An isolating switch is a device widely applied to the field of power equipment and is mainly used for disconnecting a circuit without load current. Usually, the external cable is connected to the disconnector by means of a clamp.

Chinese patent No. CN208368416U discloses a wiring device for an isolating switch, which includes a wire clamp and at least one screw, wherein the wire clamp is disposed on a movable contact plate or a stationary contact plate, a cavity communicated with the outside is disposed in the wire clamp, a wire is inserted into the cavity from the outside, and the screw is used to fix the wire inserted into the cavity in the cavity.

However, the wiring device of the isolating switch has the following defects: after the lead is inserted into the accommodating cavity, the screw is screwed to fix the lead in the accommodating cavity, but after a period of time, the screw is easy to loosen, so that the lead is separated from the accommodating cavity, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

To the technical defect, the utility model aims at providing an isolator fastener can prevent that the terminal bolt is not hard up, avoids cable and junction block to break away from.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a fastener for isolator, includes the fastener body, the fastener body include the terminal block and with terminal block integrated into one piece's installation arm, one side that the terminal block deviates from the installation arm is provided with the wiring groove, terminal block up end threaded connection has the terminal bolt, the terminal block up end is provided with and is used for preventing the not hard up locking subassembly of terminal bolt, locking subassembly includes and is connected with the terminal block up end and encircles the locking section of thick bamboo in the terminal bolt outside, locking section of thick bamboo upper end opening part is provided with locking lid, locking lid is connected with the locking post that the locking section of thick bamboo inner wall was hugged closely to the outer wall towards one side of locking section of thick bamboo, locking post one end top is tight terminal bolt upper end, wear to be equipped with the shut round pin jointly between locking section of thick bamboo and the locking post.

Through adopting above-mentioned technical scheme, put into the wiring groove with the cable, the binding bolt screws, will prevent locking lid at the opening part of locking section of thick bamboo after that for the tight binding bolt in one end top of locking post prevents that the binding bolt is not hard up, will close the round pin at last and penetrate the locking section of thick bamboo, fixes locking post in the locking section of thick bamboo, labour saving and time saving.

The utility model discloses further set up to: the locking post is provided with the anti-loosening groove that supplies the nut card of binding bolt to go into towards the one end of binding bolt, anti-loosening inslot wall connection has the deformation pad.

Through adopting above-mentioned technical scheme, the nut card of binding bolt goes into the back in the locking inslot, and the deformation pad produces deformation after receiving binding bolt's nut extrusion to hug closely binding bolt's nut lateral wall, prevent that binding bolt is not hard up.

The utility model discloses further set up to: the locking post is connected with supporting spring in the locking groove diapire, adjusting spring is connected with the backup pad that is used for the tight binding bolt in top towards the one end of lug.

Through adopting above-mentioned technical scheme, when the locking inslot on the locking post is gone into to the binding bolt card, the backup pad can be tight binding bolt's up end all the time in top to further prevent that the binding bolt is not hard up.

The utility model discloses further set up to: and the inner wall of the lower end of the anti-loosening cylinder is connected with a fastening pad.

By adopting the technical scheme, the wiring bolt is screwed, the nut of the wiring bolt is tightly pressed on the fixing pad, and the fastening pad can tightly push the nut of the wiring bolt while generating deformation, so that the pressure between the external thread of the wiring bolt and the internal thread on the wiring block is increased, the friction force between the external thread of the wiring bolt and the internal thread on the wiring block is increased, and the wiring bolt is prevented from loosening; meanwhile, the fastening pad can prevent the wiring bolt from being excessively screwed to cause abrasion on the surface of the wiring block.

The utility model discloses further set up to: the edge of one side of the anti-loosening cover tightly attached to the anti-loosening barrel is connected with a sealing ring.

Through adopting above-mentioned technical scheme, the sealing ring receives to produce deformation after locking lid extrusion to fill up the space between locking lid and the locking section of thick bamboo and be full of, prevent that dust and steam in the air from getting into in the locking section of thick bamboo, avoid the binding bolt to be corroded.

The utility model discloses further set up to: and a puncture conical block is arranged at one end of the wiring bolt extending into the inner cavity of the wiring groove.

By adopting the technical scheme, after the wiring bolt is screwed, the puncture conical block can penetrate through the insulating layer to pierce into the cable, so that the insulating layer on the outer side of the cable is not required to be removed, and time and labor are saved; meanwhile, the puncture conical block penetrates into the cable, so that the connection stability between the wiring bolt and the cable can be improved, and the cable is prevented from being separated from the wiring groove.

The utility model discloses further set up to: the wiring block is provided with a sealing film at the opening of the wiring groove, and a cross seam is formed in the sealing film.

Through adopting above-mentioned technical scheme, the seal membrane can prevent dust and steam in the air from getting into the wiring groove, and the cable can penetrate the wiring groove through the cross seam on the seal membrane simultaneously.

The utility model discloses further set up to: two mounting bolts penetrate through the mounting arm, one end of each mounting bolt is connected with a mounting nut in a threaded mode, and positioning holes and strip holes for the two mounting bolts to penetrate through are formed in the upper end face of the mounting arm in sequence along the length direction of the mounting arm.

By adopting the technical scheme, one of the mounting bolts is clamped into the positioning hole and connected with the isolating switch, and then the relative position of the other mounting bolt in the long strip hole is adjusted according to the hole in the isolating switch, so that the mounting efficiency is improved.

To sum up, the utility model discloses following beneficial effect has:

1. the anti-loosening assembly can prevent the wiring bolt from loosening, so that stable connection between the cable and the wiring block is ensured;

2. the sealing film can prevent dust and water vapor in the air from entering the wiring groove, and accidents are avoided.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is an exploded view of the embodiment;

FIG. 3 is a schematic structural view of the loosening prevention assembly in the embodiment;

fig. 4 is a schematic sectional view of the plane a-a in fig. 3.

Description of reference numerals: 1. a wire clamp body; 11. a junction block; 111. a wiring slot; 12. mounting an arm; 121. installing a bolt; 122. positioning holes; 123. a strip hole; 124. mounting a nut; 13. a wiring bolt; 131. puncturing a conical block; 2. a locking assembly; 21. an anti-loosening cylinder; 211. a fastening pad; 22. a locking cover; 221. a seal ring; 23. a locking post; 231. an anti-loosening groove; 232. a deformation pad; 233. a support spring; 234. a support plate; 24. a closed pin; 3. a sealing film; 31. and (4) cross-shaped seams.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a fastener for isolator, as shown in figure 1, as shown in figure 2, including fastener body 1, fastener body 1 includes that the cross-section is the lug 11 of rectangle and with lug 11 integrated into one piece's installation arm 12, lug 11 deviates from one side middle part of installation arm 12 and offers and supplies outside cable male wiring groove 111, lug 11 up end threaded connection has one end to stretch into wiring groove 111's terminal bolt 13, lug 11 up end is provided with and is used for preventing the not hard up locking subassembly 2 of terminal bolt 13, locking subassembly 2 can prevent that terminal bolt 13 is not hard up, avoid the cable to break away from wiring groove 111.

As shown in FIG. 2, a sealing film 3 for sealing the opening of the wiring slot 111 is fixedly connected to the wiring block 11 at the opening of the wiring slot 111, the sealing film 3 is made of rubber and has good deformability, and a cross seam 31 is formed on the sealing film 3. The sealing film 3 can prevent dust and moisture in the air from entering the wire connection slot 111, while the cable can penetrate into the wire connection slot 111 through the cross slit 31 in the sealing film 3.

As shown in fig. 2, a conical piercing cone 131 is integrally formed at one end of the terminal bolt 13 extending into the cavity of the terminal groove 111. After the wiring bolt 13 is screwed, the puncture conical block 131 penetrates through the insulating layer to pierce into the cable, so that the insulating layer on the outer side of the cable is not required to be removed, and time and labor are saved; meanwhile, the piercing cone block 131 pierces the cable to improve the connection stability between the terminal bolt 13 and the cable, thereby preventing the cable from being separated from the terminal groove 111.

As shown in fig. 2, two mounting bolts 121 are inserted into the mounting arm 12 at intervals along the length direction thereof, one ends of the two mounting bolts 121 are respectively connected with a mounting nut 124 through threads, one end of the mounting arm 12, which is far away from the junction block 11, is provided with a positioning hole 122 for one of the mounting bolts 121 to be clamped into, the mounting arm 12 is provided with a long hole 123 for the other mounting bolt 121 to be clamped into between the positioning hole 122 and the junction block 11 along the length direction thereof, one of the mounting bolts 121 is clamped into the positioning hole 122 and connected with the isolating switch, and then the relative position of the other mounting bolt 121 in the long hole 123 is adjusted according to the opening hole on the isolating switch, so that the mounting is flexible, and the mounting.

As shown in fig. 2 and 4, the anti-loosening assembly 2 includes an anti-loosening barrel 21 connected with the upper end surface of the junction block 11 and surrounding the outside of the junction bolt 13, an opening at the upper end of the anti-loosening barrel 21 is provided with a circular anti-loosening cover 22, the anti-loosening cover 22 is fixedly connected with an anti-loosening column 23 with an outer wall closely attached to the inner wall of the anti-loosening barrel 21 towards the middle of one side of the anti-loosening barrel 21, the anti-loosening column 23 is provided with an anti-loosening groove 231 for the nut of the junction bolt 13 to be clamped in along the length direction thereof towards one end of the junction bolt 13, the inner wall of the anti-loosening groove 231 is fixedly connected with a deformation pad 232 made of silica gel, so that the deformation pad 232 has good deformation capability, after the nut of the junction bolt 13 is clamped in the anti-loosening groove 231, the deformation pad 232 is deformed after being pressed by the nut. A closed pin 24 is arranged between the anti-loosening cylinder 21 and the anti-loosening column 23 in a penetrating way. The cable is placed in the wiring groove 111, the wiring bolt 13 is screwed, then the anti-loosening cover 22 is covered at the opening of the anti-loosening barrel 21, the nut of the wiring bolt 13 is clamped in the anti-loosening groove 231 on the anti-loosening column 23, the wiring bolt 13 is prevented from loosening, finally the closed pin 24 penetrates into the anti-loosening barrel 21, and the anti-loosening column 23 is fixed in the anti-loosening barrel 21, so that time and labor are saved.

As shown in fig. 3, a sealing ring 221 made of a silicone material is fixedly connected to an edge of one side of the locking cover 22, which is tightly attached to the locking cylinder 21. The sealing ring 221 is deformed after being extruded by the anti-loosening cover 22, so that the gap between the anti-loosening cover 22 and the anti-loosening barrel 21 is filled, dust and water vapor in air are prevented from entering the anti-loosening barrel 21, and the wiring bolt 13 is prevented from being rusted.

As shown in fig. 2 and 4, a fastening pad 211 made of rubber is fixedly connected to the inner wall of the lower end of the anti-loosening cylinder 21. The wiring bolt 13 is screwed, the nut of the wiring bolt 13 is tightly pressed on the fastening pad 211, and the fastening pad 211 can tightly press against the nut of the wiring bolt 13 while being deformed, so that the pressure between the external thread of the wiring bolt 13 and the internal thread on the wiring block 11 is increased, the friction force between the external thread of the wiring bolt 13 and the internal thread is increased, and the wiring bolt 13 is prevented from loosening; at the same time, the fastening pad 211 prevents the terminal bolt 13 from being excessively tightened to wear the surface of the terminal block 11.

As shown in fig. 2 and 4, the locking post 23 is connected to a support spring 233 at the bottom wall of the locking groove 231, and a support plate 234 for tightly supporting the terminal bolt 13 is connected to one end of the adjusting spring facing the terminal block 11. When the terminal bolt 13 is engaged in the locking groove 231 of the locking post 23, the support plate 234 can always abut against the upper end surface of the terminal bolt 13, thereby further preventing the terminal bolt 13 from being loosened.

The installation process comprises the following steps:

firstly, respectively inserting the mounting bolts 121 into the elongated holes 123 and the positioning holes 122, connecting the mounting bolts with the isolating switch, and screwing the mounting nuts 124; next, the cable is inserted into the wiring groove 111, and the wiring bolt 13 is tightened; finally, the anti-loosening cover 22 is covered, and the closing pin 24 is inserted into the anti-loosening cylinder 21, so that the installation is completed, and time and labor are saved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a fastener for isolator, includes fastener body (1), fastener body (1) including junction block (11) and with junction block (11) integrated into one piece's installation arm (12), one side that junction block (11) deviates from installation arm (12) is provided with wiring groove (111), terminal surface threaded connection has wiring bolt (13), its characterized in that on junction block (11): the utility model discloses a locking terminal bolt, including terminal block (11), terminal block (11) up end, locking subassembly (2) are provided with and are used for preventing terminal bolt (13) not hard up locking subassembly (2), locking subassembly (2) include be connected with terminal block (11) up end and encircle in the anti-loosening section of thick bamboo (21) in the terminal bolt (13) outside, anti-loosening section of thick bamboo (21) upper end opening part is provided with locking lid (22), locking lid (22) are connected with locking post (23) that the anti-loosening section of thick bamboo (21) inner wall is hugged closely to the outer wall towards one side of anti-loosening section of thick bamboo (21), locking post (23) one end top is tight terminal bolt (13) upper end, wear to be equipped with between anti-loosening section of thick bamboo (21).

2. The wire clamp for the isolating switch according to claim 1, characterized in that: locking post (23) are provided with the nut card that supplies binding bolt (13) to go into anti-loosening groove (231) towards the one end of binding bolt (13), anti-loosening groove (231) inner wall connection has deformation pad (232).

3. The wire clamp for the isolating switch according to claim 2, characterized in that: the locking post (23) is connected with a supporting spring (233) on the bottom wall of the locking groove (231), and one end of the adjusting spring facing the wiring block (11) is connected with a supporting plate (234) used for tightly jacking the wiring bolt (13).

4. The wire clamp for the isolating switch according to claim 3, characterized in that: the inner wall of the lower end of the anti-loosening cylinder (21) is connected with a fastening pad (211).

5. The wire clamp for the isolating switch according to claim 1, characterized in that: the edge of one side of the anti-loosening cover (22) tightly attached to the anti-loosening barrel (21) is connected with a sealing ring (221).

6. The wire clamp for the isolating switch according to claim 1, characterized in that: and a puncture conical block (131) is arranged at one end of the wiring bolt (13) extending into the inner cavity of the wiring groove (111).

7. The wire clamp for the isolating switch according to claim 1, characterized in that: the wiring block (11) is provided with a sealing film (3) at the opening of the wiring groove (111), and a cross seam (31) is formed in the sealing film (3).

8. The wire clamp for the isolating switch according to claim 1, characterized in that: two mounting bolts (121) penetrate through the mounting arm (12), two mounting nuts (124) are connected to one ends of the mounting bolts (121) in a threaded mode, and positioning holes (122) and strip-shaped holes (123) for the two mounting bolts (121) to penetrate through are sequentially formed in the upper end face of the mounting arm (12) along the length direction of the mounting arm.