CN210350112U

CN210350112U - Transformer wire clamp

Info

Publication number: CN210350112U
Application number: CN201921549259.6U
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 transformer wire clamp, including the fastener body, the fastener body includes wiring portion and fixed part, wiring portion up end is provided with the wiring groove, be provided with two line ball boards in the wiring portion, every the line ball board both sides are all worn to be equipped with the wiring bolt, wiring bolt one end threaded connection has the wiring nut, wiring portion up end is provided with locking subassembly, locking subassembly includes the locking post of being connected with wiring portion up end, locking post upper end articulates respectively has first locking arm and the locking arm of second, first locking arm is provided with two locating holes along self length direction interval, the locking arm of second is provided with two spacing holes along self length direction interval. After the wiring bolt and the wiring nut are installed, the first anti-loosening arm and the second anti-loosening arm clamp the wiring nut, so that the inner walls of the limiting holes and the positioning holes are tightly attached to the side wall of the wiring nut, and the wiring nut is prevented from loosening.

Description

Transformer wire clamp

Technical Field

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

Background

At present, a transformer is important power equipment in a power system, and a transformer clamp is generally adopted for connection between a transformer terminal and a lead.

Chinese patent No. CN203562535U discloses a copper-aluminum transformer wire clamp, which comprises a support plate, a pressing plate and a welding plate, wherein the pressing plate is connected with the support plate through a bolt, the support plate is connected with the welding plate, a wire guide groove is formed on the support plate, the pressing plate is arranged right above the wire guide groove, the cross section of the pressing plate is U-shaped, and the wire clamp further comprises a winding pile arranged on the support plate, and the winding pile is fixed on the axis of the wire guide groove; one end of the wire core entering the wire guide groove is connected to the winding pile so as to ensure the stability of the cable fixed in the wire clamp and reduce the influence of external factors on the cable; the cross-section of clamp plate is the U-shaped, and when the sinle silk entered into the metallic channel, the downward outstanding part in clamp plate middle part can directly contact well with the sinle silk for the pressure concentration that the bolt produced when screwing is used in on the sinle silk, avoids aerial [ insulated ] cable to produce when meeting the wind swing and becomes flexible in the clamp.

However, the copper-aluminum transformer wire clamp has the following defects: the clamp plate and the support plate of the wire clamp are connected through the bolt, and after a period of time, the nut is easy to loosen, so that the connection between the cable and the wire clamp is influenced, and therefore the improvement is needed.

SUMMERY OF THE UTILITY MODEL

To the technical defect, the utility model aims at providing a transformer clamp can prevent that the binding nut is not hard up.

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

a transformer wire clamp comprises a wire clamp body, wherein the wire clamp body comprises a wiring part and a fixing part, the upper end face of the wiring part is provided with a wiring groove, the upper end of the wiring part in the wiring groove is provided with two wire pressing plates, each wire pressing plate is provided with a wiring bolt in a penetrating way on two sides, one end of the wiring bolt is in threaded connection with a wiring nut, the upper end face of the wiring part is provided with anti-loosening components for preventing the wiring nut from loosening on two sides of the wiring groove, each anti-loosening component comprises an anti-loosening column connected with one end of the upper end face of the wiring part close to the fixing part, the upper end of the anti-loosening column is respectively hinged with a first anti-loosening arm and a second anti-loosening arm, the first anti-loosening arm is provided with two positioning holes along the length direction of the first anti-loosening arm, the second anti-loosening arm is, the movable ends of the first anti-loosening arm and the second anti-loosening arm are connected through a fixing piece.

Through adopting above-mentioned technical scheme, after having installed wiring bolt and binding nut, rotate first locking arm and second locking arm for first locking arm and second locking arm press from both sides tight binding nut, make the inner wall of spacing hole and locating hole hug closely in the binding nut lateral wall, thereby prevent that binding nut is not hard up.

The utility model discloses further set up to: the mounting includes the solid fixed ring that supplies the expansion end card of the locking arm of second to go into with the activity end articulated of first locking arm, gu fixed ring keeps away from one end threaded connection of first locking arm has the fixing bolt who is used for the expansion end of the locking arm of top tight second.

Through adopting above-mentioned technical scheme, earlier go into the retaining ring with the locking arm card of second, the fixing bolt is screwed for fixing bolt tightly pushes up the locking arm of second, thereby makes first locking arm and the tight binding nut both ends of second locking arm clamp.

The utility model discloses further set up to: and one end of the fixing bolt, which is tightly attached to the second anti-loosening arm, is connected with a fixing circular plate.

Through adopting above-mentioned technical scheme, fixed plectane can prevent that fixing bolt from unscrewing solid fixed ring, avoids fixing bolt to lose.

The utility model discloses further set up to: the inner wall of the fixing ring is connected with a guide cylinder outside the fixing bolt.

Through adopting above-mentioned technical scheme, the guide cylinder can give the effect of a direction of fixing bolt, prevents that fixing bolt from producing crooked for solid fixed ring, avoids influencing being connected between first locking arm and the second locking arm.

The utility model discloses further set up to: the outer wall of the fixing ring is connected with a reinforcing rib.

Through adopting above-mentioned technical scheme, the strengthening rib can increase solid fixed ring's cross-sectional area to improve solid fixed ring's bending resistance ability.

The utility model discloses further set up to: the fixing bolt is provided with a fixing spring in a penetrating mode, one end of the fixing spring tightly props the outer wall of the fixing ring, and the other end of the fixing spring tightly props the nut of the fixing bolt.

Through adopting above-mentioned technical scheme, fixing spring can give a top tight power of fixing bolt's nut to make the pressure increase between the internal thread on the external screw thread on the fixing bolt and the solid fixed ring, thereby make the frictional force between them increase, thereby prevent that fixing bolt is not hard up.

The utility model discloses further set up to: the inner walls of the limiting holes and the positioning holes are connected with anti-loosening pads made of rubber.

Through adopting above-mentioned technical scheme, locking pad is made by rubber, has good deformability, and when the terminal nut card was gone into between spacing hole and the locating hole, locking pad received the extrusion and produced deformation to hug closely the terminal nut lateral wall, prevent that terminal nut is not hard up.

The utility model discloses further set up to: one side of the anti-loosening pad, which is tightly attached to the wiring nut, is connected with a plurality of anti-skidding threads.

Through adopting above-mentioned technical scheme, the frictional force between locking pad and the binding nut lateral wall can be increased to the antiskid line to further prevent that binding nut is not hard up.

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

locking subassembly can prevent that the binding nut is not hard up, avoids influencing the connection stability between cable and the fastener.

Drawings

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

FIG. 2 is a schematic structural view illustrating the loosening prevention assembly in an embodiment in an opened state;

fig. 3 is a schematic structural view of the region a in fig. 2.

Description of reference numerals: 1. a wire clamp body; 11. a wiring portion; 111. a wiring slot; 112. a wire pressing plate; 113. a wiring bolt; 114. a wiring nut; 12. a fixed part; 2. a locking assembly; 21. a locking post; 22. a first anti-loosening arm; 221. positioning holes; 23. a second anti-loosening arm; 231. a limiting hole; 3. a fixing member; 31. a fixing ring; 311. reinforcing ribs; 32. fixing the bolt; 33. fixing the circular plate; 34. a guide cylinder; 35. fixing the spring; 4. a locking pad; 41. and (4) anti-skid lines.

Detailed Description

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

The utility model provides a transformer wire clamp, as shown in fig. 1, including fastener body 1, fastener body 1 is including being used for the wiring portion 11 of being connected with the cable and being used for the fixed part 12 of being connected with the transformer, wiring portion 11 is rectangle and up end and sets up the wiring groove 111 that supplies the cable to put into along self length direction, wiring portion 11 installs two line ball boards 112 in wiring groove 111 upper end along self length direction interval, two wiring bolts 113 are all worn to be equipped with in every line ball board 112 both sides, wiring bolt 113 one end threaded connection has binding nut 114. The locking subassembly 2 that is used for preventing that binding nut 114 is not hard up is all installed in wiring groove 111 both sides to wiring portion 11 up end, and locking subassembly 2 can prevent that binding nut 114 is not hard up to ensure that the cable can be connected with wiring portion 11 is normal, avoid unexpected the emergence.

As shown in fig. 2, the anti-loosening assembly 2 includes an anti-loosening post 21 with a circular cross section, the anti-loosening post 21 is fixedly connected to one end of the wiring portion 11 close to the fixing portion 12 along the vertical direction, the upper end of the anti-loosening post 21 is hinged to a first anti-loosening arm 22 and a second anti-loosening arm 23 used for clamping the wiring nut 114 respectively, two positioning holes 221 are formed in one side of the first anti-loosening arm 22 close to the wiring nut 114 along the length direction of the first anti-loosening arm, two limiting holes 231 are formed in one side of the second anti-loosening arm 23 close to the wiring nut 114 along the length direction of the second anti-loosening arm, and after the first anti-loosening arm 22 and the second anti-loosening arm 23 clamp the wiring nut 114, the limiting holes 231 and. After the wiring bolt 113 and the wiring nut 114 are installed, the first locking arm 22 and the second locking arm 23 are rotated, so that the first locking arm 22 and the second locking arm 23 clamp the wiring nut 114, the inner walls of the limiting hole 231 and the positioning hole 221 are tightly attached to the side wall of the wiring nut 114, and the wiring nut 114 is prevented from loosening.

As shown in fig. 2, a locking pad 4 made of rubber is fixedly attached to an inner wall of each of the stopper hole 231 and the positioning hole 221. Locking pad 4 is made by rubber, has good deformability, and when terminal nut 114 block goes into between spacing hole 231 and the locating hole 221, locking pad 4 received the extrusion and produced deformation to hug closely terminal nut 114 lateral wall, prevent that terminal nut 114 is not hard up, simultaneously, locking pad 4 can prevent that the inner wall of spacing hole 231 and locating hole 221 from taking place wearing and tearing with terminal nut 114 lateral wall. The anti-slip threads 41 are integrally formed on one side of the anti-slip pad 4, which is tightly attached to the wiring nut 114. The anti-slip threads 41 can increase the friction between the anti-loose pad 4 and the sidewall of the terminal nut 114, thereby further preventing the terminal nut 114 from loosening.

As shown in fig. 2 and 3, the movable ends of the first anti-loosening arm 22 and the second anti-loosening arm 23 are connected through the fixing member 3. The fixing piece 3 comprises a fixing ring 31 which is in a U shape, the fixing ring 31 is hinged to the movable end of the first anti-loosening arm 22, and a fixing bolt 32 is connected to the middle of one side, away from the first anti-loosening arm 22, of the fixing ring 31 in a threaded manner. After the first anti-loosening arm 22 and the second anti-loosening arm 23 clamp the nuts, the fixing ring 31 is rotated to buckle the fixing ring 31 on the outer wall of the movable end of the second anti-loosening arm 23, and then the fixing bolt 32 is screwed to tightly push the fixing bolt 32 against the second anti-loosening arm 23, so that the movable ends of the first anti-loosening arm 22 and the second anti-loosening arm 23 are connected with each other. The outer wall of the fixing ring 31 is connected with a reinforcing rib 311, and the reinforcing rib 311 can increase the cross-sectional area of the fixing ring 31, so that the bending resistance of the fixing ring 31 is improved.

As shown in fig. 2 and 3, a fixed circular plate 33 is fixedly connected to one end of the fixing bolt 32 in close contact with the second lock arm 23. The fixing disk 33 prevents the fixing bolt 32 from being unscrewed from the fixing ring 31, and prevents the fixing bolt 32 from being lost. The fixing bolt 32 is provided with a fixing spring 35 in a penetrating way, one end of the fixing spring 35 tightly props against the outer wall of the fixing ring 31, and the other end of the fixing spring tightly props against the nut of the fixing bolt 32. The fixing spring 35 can give a tightening force to the nut of the fixing bolt 32, so that the pressure between the external thread on the fixing bolt 32 and the internal thread on the fixing ring 31 is increased, so that the frictional force therebetween is increased, thereby preventing the fixing bolt 32 from being loosened.

As shown in fig. 2 and 3, a guide cylinder 34 for the fixing bolt 32 to pass through is fixedly connected to an inner wall of the fixing ring 31 on a side away from the first anti-loosening arm 22, and the guide cylinder 34 can provide a guiding function for the fixing bolt 32, so as to prevent the fixing bolt 32 from skewing relative to the fixing ring 31 and avoid affecting the connection between the first anti-loosening arm 22 and the second anti-loosening arm 23.

The installation process comprises the following steps:

firstly, a cable is placed in a wiring groove 111, a wire pressing plate 112 is covered, a wiring bolt 113 penetrates through the wire pressing plate 112, and a wiring nut 114 is screwed; next, the first and

second lock arms

22 and 23 are clamped to the terminal nut 114; finally, the fixing ring 31 is fastened outside the second anti-loosening arm 23, and the fixing bolt 32 is screwed, so that the movable end of the first anti-loosening arm 22 is connected with the movable end of the second anti-loosening arm 23, and the terminal nut 114 can be clamped all the time, and the terminal nut 114 is prevented from loosening.

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 transformer wire clamp, includes fastener body (1), fastener body (1) is including wiring portion (11) and fixed part (12), wiring portion (11) up end is provided with wiring groove (111), wiring portion (11) are provided with two line ball boards (112) in the upper end of wiring groove (111), every line ball board (112) both sides are all worn to be equipped with wiring bolt (113), wiring bolt (113) one end threaded connection has wiring nut (114), its characterized in that: wiring portion (11) up end all is provided with in wiring groove (111) both sides and is used for preventing locking subassembly (2) that binding nut (114) are not hard up, locking subassembly (2) include with wiring portion (11) up end be close to locking post (21) that the one end of fixed part (12) is connected, locking post (21) upper end articulates respectively has first locking arm (22) and second locking arm (23), first locking arm (22) are provided with two locating holes (221) along self length direction interval, second locking arm (23) are provided with two spacing holes (231) along self length direction interval, spacing hole (231) and locating hole (221) form the cavity that supplies binding nut (114) card to go into, connect through mounting (3) between the expansion end of first locking arm (22) and second locking arm (23).

2. The transformer clamp of claim 1, wherein: the fixing piece (3) comprises a fixing ring (31) clamped into the movable end of the second anti-loosening arm (23) and hinged to the movable end of the first anti-loosening arm (22), and one end, far away from the first anti-loosening arm (22), of the fixing ring (31) is connected with a fixing bolt (32) used for jacking the movable end of the second anti-loosening arm (23).

3. The transformer clamp of claim 2, wherein: one end of the fixing bolt (32) which is tightly attached to the second anti-loosening arm (23) is connected with a fixing circular plate (33).

4. A transformer clamp according to claim 3, wherein: the inner wall of the fixing ring (31) is connected with a guide cylinder (34) on the outer side of the fixing bolt (32).

5. The transformer clamp of claim 4, wherein: the outer wall of the fixing ring (31) is connected with a reinforcing rib (311).

6. The transformer clamp of claim 5, wherein: fixing spring (35) are arranged on fixing bolt (32) in a penetrating mode, and one end of fixing spring (35) tightly props up the outer wall of fixing ring (31) and the nut of fixing bolt (32) tightly propped up by the other end.

7. The transformer clamp of claim 1, wherein: the inner walls of the limiting hole (231) and the positioning hole (221) are connected with anti-loosening pads (4) made of rubber.

8. The transformer clamp of claim 7, wherein: one side of the anti-loosening pad (4) tightly attached to the wiring nut (114) is connected with a plurality of anti-skidding threads (41).