Ground wire suspension clamp

Abstract

The utility model discloses a ground wire suspension clamp, comprising a wire support, the top of the wire support is screwed and fixed with a hanger through a first locking bolt, a wire fixing block used for fixing a ground wire is hinged in the wire support through a hinge, the wire fixing block comprises a first wire clamp and a second wire clamp, and the first wire clamp and the second wire clamp are hinged through a hinge. The bottoms of the first wire clamp and the second wire clamp are connected with connecting plates, a second locking bolt is arranged in the wire support, the second locking bolt rotatably penetrates through the connecting plates and then is in threaded connection with a locking nut, and the first wire clamp and the second wire clamp are hinged in the wire support through a hinge to form a wire fixing block. A second locking bolt rotationally penetrates through the connecting plate and then is in threaded connection with a locking nut, so that the wire fixing block and the wire support are tightly connected, larger external force can be borne, the wire fixing block is effectively prevented from loosening or deforming, it is ensured that the ground wire is firmly fixed all the time, larger external force can be effectively dispersed and borne, and the overall structural strength is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of wire clamp, concretely relates to a ground wire suspension clamp. BACKGROUND

[0002] In the power transmission line system, the ground wire suspension clamp is the key component to ensure the stable operation of the line, and its role is to stably suspend the ground wire on the straight pole tower, the traditional pre-stranding ground wire suspension clamp reduces the static pressure stress of the clamp on the ground wire because no bolt directly acts on the ground wire, and the long pre-stranding wire is wound on the ground wire, which can disperse the stress at the suspension point to the whole length of the pre-stranding wire, effectively reduces the static pressure stress of the ground wire and the dynamic bending stress caused by the wind vibration, greatly improves the fatigue resistance of the ground wire, and prolongs the service life of the ground wire, so it is widely used in the construction of power grid.

[0003] However, with the large number of construction of the current ultra-high voltage AC and DC lines, a series of problems gradually emerge, the ultra-high voltage line has the characteristics of high altitude, large height difference, large span difference, and some areas often face continuous rain, snow and freezing weather, which makes some ground wires need to bear large ice uneven tension, the existing ground wire pre-stranding suspension clamp adopts a front and rear half type suspension shell structure, when holding the ground wire, there is a gap at the lower part, which leads to insufficient overall strength, under the double action of large ice vertical load and ice uneven tension, the lower part of the trumpet mouth on both sides of the suspension shell is prone to deformation and opening, and finally destroyed, once the suspension clamp shell is damaged, the holding force is lost, and the ground wire will slip, which may cause serious safety accidents. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a ground wire suspension clamp to solve the problems in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a ground wire suspension clamp, comprising:

[0006] A wire holder is provided with a hanger at the top through a first locking bolt, a wire fixing block for fixing the ground wire is hinged in the wire holder through a hinge, the wire fixing block comprises a first wire clamp and a second wire clamp, the first wire clamp and the second wire clamp are hinged, a connecting plate is connected to the bottom of each wire clamp, and a second locking bolt is arranged in the wire holder and is in threaded connection with a locking nut after penetrating through the connecting plate.

[0007] Preferably, a protective pad is arranged in each of the first wire clamp and the second wire clamp.

[0008] Preferably, a third locking bolt is fixed on the top of the hanger through screwing.

[0009] Preferably, the wire holder bottom is connected with a fixing lug, and the fixing lug is provided with a mounting hole.

[0010] Preferably, the first locking bolt, the second locking bolt and the third locking bolt are all provided with a pin.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The first wire clamp and the second wire clamp are connected to form a wire fixing block through the hinge in the wire holder, and the wire fixing block is connected with the wire holder through the second locking bolt penetrating through the connecting plate and being screwed with the locking nut, so that the wire fixing block and the wire holder are connected tightly, can effectively disperse and bear greater external force, and improve the overall structural strength.

[0013] The wire holder top is connected with the hanger through the first locking bolt, and the angle of the wire holder can be adjusted by loosening and tightening the first locking bolt, so that the worker can adjust the angle of the wire clamp according to the actual operation needs and convenience.

[0014] The first wire clamp and the second wire clamp are both provided with a protective pad, which can effectively avoid the direct rigid contact between the wire clamp and the ground wire when fixing the ground wire, not only can prevent the damage to the surface of the ground wire caused by the friction or extrusion of the wire clamp on the ground wire during installation or operation, but also can reduce the dynamic bending stress concentration of the ground wire caused by wind vibration and the like, protect the mechanical properties of the ground wire, and prolong the service life of the ground wire. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the utility model;

[0016] Fig. 2 It is a side view of the utility model;

[0017] Fig. 3 It is a structural schematic view of the first wire clamp and the second wire clamp of the utility model.

[0018] In the drawing: 1, wire holder; 2, first locking bolt; 3, hanger; 4, hinge; 5, first wire clamp; 6, second wire clamp; 7, connecting plate; 8, second locking bolt; 9, protective pad; 10, third locking bolt; 11, fixing lug; 12, mounting hole; 13, pin. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] The utility model provides a ground wire suspension clamp as shown in Figs. 1-3 As shown in the utility model discloses a ground wire suspension clamp, comprising:

[0021] The wire holder 1 is provided with a hanger 3 at the top thereof by a first locking bolt 2, and a wire fixing block for fixing the ground wire is hingedly connected in the wire holder 1 by a hinge 4, the wire fixing block comprises a first wire clamp 5 and a second wire clamp 6, the first wire clamp 5 and the second wire clamp 6 are hingedly connected by the hinge 4, and the bottom of each of the first wire clamp 5 and the second wire clamp 6 is connected with a connecting plate 7, the wire holder 1 is provided with a second locking bolt 8, and the second locking bolt 8 is in threaded connection with a locking nut after being rotatably penetrated through the connecting plate 7.

[0022] The first wire clamp 5 and the second wire clamp 6 are both provided with a protective pad 9 made of rubber, which can effectively avoid the direct rigid contact between the wire clamp and the ground wire and prevent the damage to the surface of the ground wire caused by the friction or extrusion of the wire clamp on the ground wire during installation or operation.

[0023] The top of the hanger 3 is provided with a third locking bolt 10.

[0024] The bottom of the wire holder 1 is connected with a fixing lug 11, and the fixing lug 11 is provided with a mounting hole 12.

[0025] The first locking bolt 2, the second locking bolt 8 and the third locking bolt 10 are all provided with a pin 13, which can limit the rotation of the bolt, so that the bolt is difficult to loosen even if it is vibrated, thereby ensuring the tightness and stability of the connection between the components of the suspension clamp.

[0026] The ground wire suspension clamp, in the installation of the suspension clamp, first, the mounting hole 12 of the bottom fixed lug 11 of the wire holder 1 is aligned with the corresponding mounting position on the straight line tower, a suitable connecting piece is used to pass through the mounting hole 12 to be preliminarily fixed, then, one end of the ground wire is transmitted into the wire holder 1 and passes through between the first wire clamp 5 and the second wire clamp 6, since the first wire clamp 5 and the second wire clamp 6 are hinged through the hinge 4, the ground wire can be properly adjusted according to the thickness and shape of the ground wire, so that it is better fitted to the ground wire, then, the second locking bolt 8 is rotated to penetrate the connecting plate 7, is screwed with the locking nut and is tightened, so that the first wire clamp 5 and the second wire clamp 6 are tightly fixed around the ground wire, the clamping and fixing of the ground wire are realized, after that, the hanging rack 3 is screwed and fixed on the top of the wire holder 1 through the first locking bolt 2, the angle of the hanging rack 3 is adjusted according to the actual line condition, the first locking bolt 2 is tightened again, finally, the third locking bolt 10 on the top of the hanging rack 3 is connected with the suspension device above the tower, similarly, the bolts are reinforced by using the pin 13, so that the installation of the whole suspension clamp is stable;

[0027] And in the normal operation of the power transmission line, the ground wire suspension clamp mainly bears the gravity, wind force and possible external forces such as ice load of the ground wire, the wire holder 1 and the wire fixing block are tightly connected through the second locking bolt 8 and the connecting plate 7, can bear greater external force, even under the action of larger ice vertical load and ice unbalanced tension, the tight connection structure can effectively prevent the wire fixing block from loosening or deforming, and ensure that the ground wire is always firmly fixed.

[0028] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A ground line suspension clamp characterized by, Include: The wire holder (1) top is fixed with the hanger (3) by the first locking bolt (2), the wire holder (1) is hinged with the wire fixing block for fixing ground wire by hinge (4), the wire fixing block includes first wire clamp (5), second wire clamp (6), the first wire clamp (5) and second wire clamp (6) are hinged by hinge (4), the bottom of first wire clamp (5) and second wire clamp (6) is connected with the connecting plate (7), the wire holder (1) is equipped with the second locking bolt (8) and the second locking bolt (8) is rotated and penetrates the connecting plate (7) and is connected with the locking nut threadedly.

2. A ground wire suspension clamp according to claim 1, wherein: The first wire clamp (5) and second wire clamp (6) are equipped with protective pads (9).

3. A ground wire suspension clamp according to claim 1, wherein: The top of the hanger (3) is fixed with the third locking bolt (10).

4. The ground wire suspension clamp of claim 1, wherein: The bottom of the wire holder (1) is connected with the fixing lug (11) and the mounting hole (12) is formed in the fixing lug (11).

5. A ground wire suspension clamp according to claim 3, wherein: The first locking bolt (2), the second locking bolt (8) and the third locking bolt (10) are all equipped with the pin (13).

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