C-shaped wire clamp

Abstract

The utility model relates to the technical field of C-shaped wire clamps, in particular to a C-shaped wire clamp. According to the technical scheme, the wire clamp comprises a base, a bolt arranged on the base, and a first wire clamp and a second wire clamp which are in threaded connection with the bolt, and further comprises a first fastening cushion fixedly mounted on the first wire clamp, a second fastening cushion fixedly mounted on the second wire clamp, and a coating mechanism, the covering mechanism is installed in the cavity and drives the first fastening soft cushion and the second fastening soft cushion to deform, and the anti-loosening assembly is installed in the cavity. According to the utility model, the wrapping mechanism drives the two sides of the first fastening soft cushion or the second fastening soft cushion to deform, so that the first fastening soft cushion or the second fastening soft cushion is attached to the wire, the contact area with the wire can be increased, the resistance can be reduced, and the temperature of the joint of the wire clamp and the wire can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to C type wire clamp technical field especially relates to a C type wire clamp. BACKGROUND

[0002] C type wire clamp is a kind of connecting hardware for power system, its shape is similar to letter "C", therefore get the name. It is mainly used in power line, and it is connected and connected to wire, especially in overhead distribution line, it can be used for 20kV overhead insulated conductor, aluminium stranded wire, steel-cored aluminium stranded wire, steel stranded wire and copper conductor and different types of wire.C type wire clamp's main function is to provide a reliable connection mode, ensure the stability of current transmission. It is made of high-strength special aluminium alloy with good conductivity, and has elasticity, and wire groove or corresponding hinged wedge of specific shape can be designed according to different specifications of wire. When subjected to external force, the internal hinged wedge can press the wire between the shell and wedge, to ensure that the wire and the clamp have persistent constant contact pressure.

[0003] When fixing wire, the fastening block will be pressed and fixed to the wire, the fastening block is provided with an arc-shaped groove matched with the diameter of the wire, the wire is composed of multiple copper wires, and the multiple copper wires will move relative to each other when the wire is pressed by the fastening block, so that the wire is deformed. The deformed wire cannot be tightly combined with the arc-shaped groove, thereby reducing the contact area between the wire and the fastening block, and increasing the contact resistance, which will cause the temperature of the wire connection to be too high, affecting the safe operation of the wire. Since the power transmission line is often in the wild, mountain top, wind hole and micro-terrain area, affected by wind, sun, rain and other natural environment, the part of C type wire clamp contacting with wire can be loose, which can cause the contact area between the clamp and the wire to decrease, and affect the conductivity of the wire. SUMMARY

[0004] The utility model discloses a kind of C type wire clamp for the problems existing in the background art, propose a kind of C type wire clamp, which prevents the part of C type wire clamp contacting with wire from being loose and can improve the contact area of the part of C type wire clamp contacting with wire.

[0005] The technical scheme of the utility model discloses a C type wire clamp, including pedestal, bolt being arranged on the pedestal, first wire clamp and second wire clamp being threadedly connected on the bolt, further comprising:

[0006] First fastening soft pad being fixedly installed on the first wire clamp, second fastening soft pad being fixedly installed on the second wire clamp;

[0007] Cavity is arranged in the first wire clamp and the second wire clamp;

[0008] A cladding mechanism is installed in the cavity, which drives the first and second fastening soft pads to deform and adhere to the wires.

[0009] A loosening prevention assembly is installed in the cavity, which prevents the first and second fastening soft pads from deforming after adhering to the wires.

[0010] Optionally, the base is provided with a through hole, the bolt is located in the through hole, a gasket and a spring are sleeved on the bolt, a nut is threadedly connected to the bolt, the gasket and the spring are located between the nut and the base, and the first and second wire clamps are located between the gasket and the base.

[0011] Optionally, the cladding mechanism comprises a mounting plate fixedly installed in the cavity, internally threaded rods rotatably installed on both sides of the mounting plate, a lead screw threadedly connected in the internally threaded rods, a first bevel gear fixedly installed on the internally threaded rods, a rotating shaft rotatably installed in the cavity, and two second bevel gears fixedly installed on the rotating shaft, the first bevel gear and the second bevel gears are meshed with each other, and the lead screw is fixedly connected with the first or second fastening soft pad.

[0012] Optionally, the rotating shaft penetrates one side of the first and second wire clamps and extends to the outside, and the rotating shaft is provided with an internal hexagonal hole.

[0013] Optionally, the loosening prevention assembly comprises a baffle rotatably installed on both sides of the cavity and a limiting plate rotatably installed on both sides of the cavity, the baffle abuts against the limiting plate, and a dismounting mechanism for limiting the position of the limiting plate is installed on the cavity.

[0014] Optionally, a torsional spring is arranged at the rotating connection between the baffle and the cavity, the torsional spring applies a torsional force to the baffle to control the abutment of the baffle against the limiting plate.

[0015] Optionally, the dismounting mechanism comprises mounting grooves arranged on the first and second wire clamps, the limiting plate is rotatably installed in the mounting grooves, a limiting block is detachably installed in the mounting grooves, and the limiting block is provided with a limiting groove with the same size as the limiting plate.

[0016] Compared with the prior art, the utility model has the beneficial technical effects that:

[0017] The cladding mechanism drives the two sides of the first or second fastening soft pad to deform, so that the first or second fastening soft pad adheres to the wires, thereby increasing the contact area with the wires and reducing the resistance, so as to reduce the temperature at the connection between the wire clamp and the wires.

[0018] Further, the anti-loosening assembly blocks the axial direction of the screw rod, prevents the screw rod from moving away from the fixed first fastening soft pad or the second fastening soft pad, and further prevents loosening of the connection between the wire clamp and the wire, so that the contact area of the connection between the wire clamp and the wire can be prevented from being reduced, and the resistance can be prevented from being increased. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structure schematic diagram of an embodiment of the utility model is given;

[0020] Figure 2 A half-partial structure schematic diagram of the utility model is given;

[0021] Figure 3 The utility model is given Figure 2 A local enlarged view of A in the middle;

[0022] Figure 4 A structure schematic diagram of a dismounting mechanism Figure 1 ;

[0023] Figure 5 A structure schematic diagram of a dismounting mechanism Figure 2 ;

[0024] Figure 6 A structure schematic diagram of a coating mechanism is given.

[0025] Reference signs: 1, base; 2, bolt; 201, gasket; 202, elastic sheet; 203, nut; 3, first wire clamp; 301, second wire clamp; 302, first fastening soft pad; 303, second fastening soft pad; 4, mounting plate; 401, internally threaded rod; 402, screw rod; 403, rotating shaft; 404, first bevel gear; 405, second bevel gear; 406, cavity; 5, baffle; 501, limiting plate; 502, mounting groove; 503, limiting block; 504, limiting groove. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model is further described below in combination with the drawings and specific embodiments.

[0027] An embodiment is as follows, Figures 1 to 2As shown, the utility model provides a C type wire clamp, including base 1, be equipped with bolt 2 on base 1, first wire clamp 3 and second wire clamp 301 are screwed on bolt 2, base 1 is equipped with through -hole, bolt 2 is located in through -hole, bolt 2 is equipped with gasket 201 and spring piece 202, bolt 2 is screwed and is connected with nut 203, gasket 201 and spring piece 202 are located between nut 203 and base 1, first wire clamp 3 and second wire clamp 301 are located between gasket 201 and base 1. Gasket 201 is placed under spring washer, and contacts with the connected component, can increase the contact area, thereby dispersing pressure, reducing the pressure of single contact point, protects the connection part not to be scratched. In the case where accurate control friction is required, gasket 201 can provide the necessary friction, ensure the stability of connection. Spring piece 202 utilizes its elasticity, tightly and is pressed between bolt head and flat washer, effectively prevents the bolt loosening due to vibration and impact.

[0028] When connecting the wire, the wire is placed into the gap between the first wire clamp 3 or the second wire clamp 301 and the base 1, and the nut 203 is rotated to drive the first wire clamp 3 and the second wire clamp 301 to fix the wire.

[0029] As shown in Figures 2 to 3 and Figure 6 It also includes a first fastening soft pad 302 fixedly installed on the first wire clamp 3 and a second fastening soft pad 303 fixedly installed on the second wire clamp 301. The first wire clamp 3 and the second wire clamp 301 are both provided with cavities 406. The first fastening soft pad 302 and the second fastening soft pad 303 can both deform at one end, so as to be attached to the connected wire and increase the contact area;

[0030] The cladding mechanism is installed in the cavity 406, and the cladding mechanism drives the first fastening cushion 302 and the second fastening cushion 303 to deform, so that the first fastening cushion 302 and the second fastening cushion 303 are attached to the wire. The cladding mechanism comprises a mounting plate 4 fixedly installed in the cavity 406, an inner threaded rod 401 rotatably installed on both sides of the mounting plate 4, a lead screw 402 threadedly connected in the inner threaded rod 401, a first bevel gear 404 fixedly installed on the inner threaded rod 401, a rotating shaft 403 rotatably installed in the cavity 406, and two second bevel gears 405 fixedly installed on the rotating shaft 403. The first bevel gear 404 is meshed with the second bevel gear 405, and the lead screw 402 is fixedly connected with the first fastening cushion 302 or the second fastening cushion 303. After the nut 203 is rotated to fix the wire, the rotating shaft 403 is rotated to drive the two second bevel gears 405 to rotate, and then the first bevel gear 404 is rotated to drive the inner threaded rod 401 to rotate, so that the lead screw 402 moves axially, and the lead screw 402 deforms the two sides of the first fastening cushion 302 or the second fastening cushion 303 to make the first fastening cushion 302 or the second fastening cushion 303 attached to the wire, thereby increasing the contact area with the wire, reducing the resistance, and reducing the temperature at the connection between the clamp and the wire. The rotating shaft 403 penetrates one side of the first clamp 3 and the second clamp 301 and extends to the outside, and the rotating shaft 403 is provided with an inner hexagonal hole. The inner hexagonal wrench can be used to rotate the rotating shaft 403.

[0031] As shown in Figures 2 to 3 The anti-loose assembly is installed in the cavity 406, and the anti-loose assembly avoids the deformation of the first fastening cushion 302 and the second fastening cushion 303 after being attached to the wire. The anti-loose assembly comprises a baffle 5 rotatably installed on both sides of the cavity 406 and a limiting plate 501 rotatably installed on both sides of the cavity 406, and the baffle 5 abuts against the limiting plate 501. A torsional spring is arranged at the rotating connection between the baffle 5 and the cavity 406, the torsional spring applies a torsional force to the baffle 5, and the baffle 5 is controlled to abut against the limiting plate 501. The baffle 5 is located in the gap between the two threads adjacent to the lead screw 402. When the lead screw 402 moves to one side of the first fastening cushion 302 or the second fastening cushion 303, the lead screw 402 pushes the baffle 5 to rotate, and then the baffle 5 is reset under the action of the torsional spring. When the lead screw 402 is loosened due to vibration or the like, the lead screw 402 will move away from the first fastening cushion 302 or the second fastening cushion 303, and the baffle 5 cannot be reversely rotated due to the blockage of the limiting plate 501, so that the baffle 5 blocks the axial direction of the lead screw 402, thereby preventing the loosening of the wire fixation.

[0032] As shown in Figures 4 to 5As shown, the cavity 406 in the embodiment is provided with a dismounting mechanism for limiting the position of the limiting plate 501. When it is necessary to dismount the wire, the limiting of the baffle 5 by the limiting plate 501 needs to be cancelled. The dismounting mechanism comprises mounting grooves 502 provided on the first wire clamp 3 and the second wire clamp 301, the limiting plate 501 is rotatably mounted in the mounting grooves 502, a limiting block 503 is detachably mounted in the mounting grooves 502, the limiting block 503 is provided with a limiting groove 504 with the same size as the limiting plate 501. The limiting block 503 is fixedly connected with the first wire clamp 3 and the second wire clamp 301 through bolts. When the limiting block 503 is located in the mounting grooves 502, the limiting plate 501 has no space for rotation, at this time, the limiting plate 501 will not be able to rotate, thereby limiting the baffle 5. When it is necessary to dismount the wire, the limiting block 503 is removed, at this time, the limiting plate 501 can rotate freely, thereby cancelling the limiting of the baffle 5 by the limiting plate 501, and the wire can be dismounted.

[0033] Working principle: when connecting the wire, the wire is placed in the gap between the first wire clamp 3 or the second wire clamp 301 and the base 1, and rotating the nut 203 can drive the first wire clamp 3 and the second wire clamp 301 to fix the wire. Then, rotating the rotating shaft 403 drives the internally threaded rod 401 to rotate, thereby driving the screw rod 402 to move axially, the screw rod 402 deforms the two sides of the first fastening soft pad 302 or the second fastening soft pad 303, so that the first fastening soft pad 302 or the second fastening soft pad 303 is in contact with the wire, thereby increasing the contact area with the wire, and reducing the resistance, thereby reducing the temperature at the connection between the wire clamp and the wire. When the screw rod 402 is about to loosen due to vibration or the like, the screw rod 402 will move away from the first fastening soft pad 302 or the second fastening soft pad 303, and the baffle 5 cannot rotate in the opposite direction under the blocking of the limiting plate 501, so that the baffle 5 blocks the axial direction of the screw rod 402, thereby preventing the fixation of the wire from loosening.

[0034] When it is necessary to dismount the wire, the limiting block 503 is removed, at this time, the limiting plate 501 can rotate freely, thereby cancelling the limiting of the baffle 5 by the limiting plate 501, and the wire can be dismounted.

[0035] The above specific embodiments are only several optional embodiments of the utility model, based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A C-type wire clamp comprising a base (1), a bolt (2) provided on the base (1), a first wire clamp (3) and a second wire clamp (301) threadedly connected to the bolt (2), characterized in that, Also include: The first fastening soft pad (302) is fixedly installed on the first wire clamp (3), and the second fastening soft pad (303) is fixedly installed on the second wire clamp (301); The first wire clamp (3) and the second wire clamp (301) are provided with cavities (406) therein; The covering mechanism is installed in the cavity (406), and the covering mechanism drives the first fastening soft pad (302) and the second fastening soft pad (303) to deform, and the first fastening soft pad (302) and the second fastening soft pad (303) are attached to the wire; The anti-loosening assembly is installed in the cavity (406), and the anti-loosening assembly avoids the deformation of the first fastening soft pad (302) and the second fastening soft pad (303) after being attached to the wire.

2. A C-clip according to claim 1, characterized in that The base (1) is provided with a through hole, the bolt (2) is located in the through hole, the bolt (2) is sleeved with a gasket (201) and a spring plate (202), the bolt (2) is threadedly connected with a nut (203), the gasket (201) and the spring plate (202) are located between the nut (203) and the base (1), and the first wire clamp (3) and the second wire clamp (301) are located between the gasket (201) and the base (1).

3. A C-clip according to claim 1, wherein The covering mechanism includes a mounting plate (4) fixedly installed in the cavity (406), an internal threaded rod (401) rotatably installed on both sides of the mounting plate (4), a lead screw (402) threadedly connected in the internal threaded rod (401), a first bevel gear (404) fixedly installed on the internal threaded rod (401), a rotating shaft (403) rotatably installed in the cavity (406), and two second bevel gears (405) fixedly installed on the rotating shaft (403). The first bevel gear (404) and the second bevel gear (405) are meshed with each other, and the lead screw (402) is fixedly connected with the first fastening soft pad (302) or the second fastening soft pad (303).

4. A C-clip according to claim 3, wherein The rotating shaft (403) penetrates one side of the first wire clamp (3) and the second wire clamp (301) and extends to the outside, and the rotating shaft (403) is provided with an internal hexagonal hole.

5. A C-clip according to claim 4, wherein The anti-loosening assembly includes a baffle (5) rotatably installed on both sides of the cavity (406) and a limiting plate (501) rotatably installed on both sides of the cavity (406), the baffle (5) abuts against the limiting plate (501), and a dismounting mechanism for limiting the position of the limiting plate (501) is installed on the cavity (406).

6. A C-clip according to claim 5, wherein The baffle (5) is provided with a torsional spring at the rotating connection with the cavity (406), the torsional spring applies a torsional force to the baffle (5) to control the abutment of the baffle (5) against the limiting plate (501).

7. A C-clip according to claim 6, wherein The dismounting mechanism includes a mounting groove (502) provided on the first wire clamp (3) and the second wire clamp (301), the limiting plate (501) is rotatably installed in the mounting groove (502), a limiting block (503) is detachably installed in the mounting groove (502), and the limiting block (503) is provided with a limiting groove (504) with the same size as the limiting plate (501).

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