Support for cable flexible joint

Abstract

The utility model discloses a support for a cable flexible joint, belongs to the field of cable equipment, and solves the problems that in the prior art, a cable flexible joint part and a cable close to the flexible joint are prone to overall deformation of the flexible joint due to thermoplastic deformation of an insulating material, the eccentricity of the cable flexible joint is large, and the coaxiality is low. According to the technical scheme, the device comprises a plurality of support sets; the bracket group comprises a bracket plate and a base which are relatively fixed; a height adjusting assembly for adjusting the distance between the support plate and the base is arranged between the base and the support plate; the support plate is a nylon plate, and an arc-shaped groove is formed in the upper end of the support plate. The lower end of the support plate is provided with a plate groove connecting piece, and the support plate is connected to the upper end of the height adjusting assembly through the plate groove connecting piece. The support for the cable flexible joint is small in size, light in weight, flexible, controllable and wide in application range; in the preparation process of the cable flexible joint, the suspension end of the cable flexible joint is supported through the support set, and the coaxiality in the cable joint process is guaranteed.

Description

Technical Field

[0001] The utility model relates to a bracket for a cable flexible joint and belongs to the field of cable processing equipment. Background Art

[0002] In recent years, with the development of the national economy, long-distance ultra-high voltage direct current transmission projects have been widely used in China. Due to the limitations of production length and transportation conditions, a single cable cannot meet the actual needs of the project, so the cable joint manufacturing technology becomes particularly important. Especially for cables in special use scenarios such as submarine cables, they may need to withstand certain external forces and chemical reactions. Ordinary joint structures will be more prone to cracks, and the consequences of cracks will also be easier and faster to develop further.

[0003] The cable flexible joint is in a heated state for a long time during the whole process of extrusion vulcanization, and the insulation and shielding materials of the cable body are prone to deformation. In the prior art, when making the flexible joint, the cable part close to the cable flexible joint has a long hanging length and no support point. Due to the lack of support, under the action of its own gravity and the thermoplastic deformation force of the insulating material, the cable flexible joint part and the cable near the flexible joint are prone to overall deformation of the flexible joint due to the thermoplastic deformation of the insulating material. The eccentricity of the cable flexible joint is large and the coaxiality is low, which affects the product quality of the cable flexible joint. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a bracket for a cable flexible joint. During the preparation process of the cable flexible joint, the hanging end of the cable flexible joint is supported by a bracket group to ensure the coaxiality during the preparation process of the cable flexible joint.

[0005] The technical solution adopted by the utility model is a bracket for a cable flexible joint, comprising a plurality of bracket groups; the bracket group comprises a bracket plate and a base, and the bracket plate and the base are relatively fixed;

[0006] A height adjustment component for adjusting the distance between the support plate and the base is provided between the base and the support plate;

[0007] The support plate is a nylon plate, and the upper end of the support plate has an arc-shaped slot;

[0008] The lower end of the bracket plate is provided with a plate slot connector, and the bracket plate is connected to the upper end of the height adjustment assembly through the plate slot connector.

[0009] Optimally, the bracket for the above-mentioned cable flexible joint has a base formed by welding steel plates;

[0010] The height adjustment assembly includes a support tube and a threaded rod; the upper end of the threaded rod is welded and fixed to the plate groove connector, and the lower end of the threaded rod is threadedly connected to the support tube;

[0011] The lower end of the support tube is fixed on the base.

[0012] Optimally, the above-mentioned bracket for the cable flexible joint, the support cylinder comprises a lower cylinder body and a nut;

[0013] The lower end of the lower cylinder is fixed on the base, and the nut is welded to the upper end of the lower cylinder; the upper end of the lower cylinder has a countersink groove, and the threaded hole of the nut is coaxially arranged with the countersink groove of the lower cylinder.

[0014] The lower end of the threaded rod passes through the nut and is inserted into the countersunk groove of the lower cylinder; the threaded rod is threadedly connected with the nut.

[0015] Optimally, the above-mentioned cable flexible joint uses a bracket, and the threaded rod is in sliding contact with the inner wall of the countersunk groove of the lower cylinder.

[0016] Optimized, the above-mentioned cable flexible joint bracket, the plate slot connector is a strip-shaped metal block, the upper end of the plate slot connector has a placement slot extending along its length direction, and the lower end of the bracket plate is inserted into the placement slot.

[0017] Optimized, the above-mentioned cable flexible joint bracket has a plurality of fastening screws installed on the side of the plate slot connector, the fastening bolts pass through the side of the plate slot connector and are threadedly connected to the plate slot connector, and the front end of the fastening bolts is in tight pressure contact with the side surface of the bracket plate inserted in the placement groove.

[0018] Optimized, the above cable flexible joint bracket, the lower end of the plate slot connector is constructed with a through hole, and the lower end of the bracket plate is constructed with a threaded hole; the threaded hole at the lower end of the bracket plate is matched with the through hole at the lower end of the plate slot connector;

[0019] The lower end of the plate slot connector is provided with a fixing bolt, which passes through a through hole at the lower end of the plate slot connector and is threadedly connected with a threaded hole at the lower end of the bracket plate.

[0020] Optimally, the cable flexible joint uses a bracket, and toggle rods are welded and fixed on both sides of the nut.

[0021] Optimally, the above-mentioned cable flexible joint uses a bracket, and a rubber pad is fixed at the lower end of the base.

[0022] Optimally, the above-mentioned cable flexible joint uses brackets, and the bracket groups are placed in parallel and at intervals.

[0023] The beneficial effects of this application are:

[0024] Because the insulation and shielding materials of the cable body near the cable flexible joint are under high temperature, the strength of the cable body itself is reduced and it is easy to deform. Therefore, in this application, a support group is used to support the hanging part of the cable near the cable flexible joint. The number of support groups is determined according to the hanging length of the cable. The longer the hanging length, the more support groups are required.

[0025] The technical solution of the present application disperses the overall long bracket into several bracket groups, which is flexible in structure and has a wider range of applications. In addition, the bracket group of the present application has a small size and low curb weight, and can be applied to various usage scenarios where large brackets are difficult to place, making the solution of the present application highly flexible and controllable.

[0026] By adjusting the height of the bracket plate by raising the assembly, the support height of each support group for each part of the cable suspension can be adjusted, and then the height of each position of the cable suspension part can be adjusted to ensure that the docking position of the cable flexible joint is compliant and the coaxiality of the cable flexible joint is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of this application;

[0028] Figure 2 for Figure 1 Side view of. DETAILED DESCRIPTION

[0029] The technical features of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] The present application discloses a bracket for a cable flexible joint, comprising a plurality of bracket groups, which are arranged in parallel and spaced apart. The bracket groups are used to support the hanging part of the cable near the cable flexible joint, and the number of the supporting groups is determined according to the hanging length of the cable. The longer the hanging length, the more supporting groups are needed.

[0031] The bracket group includes a bracket plate 2 and a base 1, and the bracket plate 2 is relatively fixed to the base 1. In order to facilitate the adjustment of the height of the bracket plate 2, the present application sets a height adjustment component between the base 1 and the bracket plate 2. In order to improve the fixing firmness of the bracket plate 2, in the present application, the bracket plate 2 is fixed by the bracket plate 2.

[0032] In this embodiment, the base 1 is formed by welding steel plates. As shown in the figure, the base 1 includes three steel plates, which are welded into a gantry-type bracket. After the base 1 is placed, the rubber pad at the lower end of the base 1 increases the friction between the base 1 and the placement position, reducing its horizontal movement. The rubber pad at the lower part of the base 1 should not be too thick, as it will easily affect the stability of the base 1. The thickness of the rubber pad should be less than 0.5 cm.

[0033] The height adjustment assembly includes a support tube and a threaded rod 401. The upper end of the threaded rod 401 is welded and fixed to the plate groove connector 3, the lower end of the threaded rod 401 is threadedly connected to the support tube, and the lower end of the support tube is fixed to the base 1 by welding.

[0034] In this embodiment, the support tube includes a lower cylinder 402 and a nut 403. The support tube can also be a steel tube type with internal threads.

[0035] The lower end of the lower cylinder 402 is welded and fixed on the base 1, and the nut 403 is welded to the upper end of the lower cylinder 402. The upper end of the lower cylinder 402 has a countersink groove, and the threaded hole of the nut 403 is coaxially arranged with the countersink groove of the lower cylinder 402. The lower end of the threaded rod 401 passes through the nut 403 and is inserted into the countersink groove of the lower cylinder 402, and the threaded rod 401 is threadedly connected with the nut 403. The two sides of the nut 403 are welded and fixed with a toggle rod 404.

[0036] By relative rotation of the threaded rod 401 and the nut 403, the height of the plate slot connector 3 can be raised or lowered, thereby adjusting the height of the bracket plate 2. At each hanging position of the cable, the height of the bracket plate 2 of each bracket group is adjusted according to the deformation of the cable, thereby meeting different support requirements at different positions.

[0037] The threaded rod 401 is in sliding contact with the inner wall of the countersunk groove of the lower cylinder 402, and the lower section of the threaded rod 401 is supported by the inner wall of the countersunk groove of the lower cylinder 402, thereby reducing the shaking of the lower end of the threaded rod 401 and maintaining good support stability.

[0038] In this embodiment, the bracket plate 2 is made of nylon plate, and an arc-shaped groove is constructed at the upper end of the bracket plate 2. When supporting the hanging end of the cable, the surface of the hanging end of the cable can fit the arc-shaped groove. The use of nylon material can reduce damage to the surface of the hanging end of the cable.

[0039] The plate-slot connector 3 is a strip-shaped metal block, and the upper end of the plate-slot connector 3 has a placement groove extending along its length direction, and the lower end of the bracket plate 2 is inserted into the placement groove. The plate-slot connector 3 can be formed by welding three steel plates, or a whole metal strip can be used and the placement groove can be milled out.

[0040] A plurality of fastening screws are installed on the side of the plate slot connector 3. The fastening bolts pass through the side of the plate slot connector 3 and are threadedly connected to the plate slot connector 3. The front end of the fastening bolts is in tight contact with the side surface of the bracket plate 2 inserted in the placement groove. The fastening screws squeeze the part of the bracket plate 2 inserted in the placement groove, reducing the relative shaking between the lower end of the bracket plate 2 and the plate slot connector 3, ensuring that the bracket plate 2 has good stability.

[0041] In addition, a through hole can be constructed at the lower end of the plate slot connector 3, and a threaded hole can be constructed at the lower end of the bracket plate 2, and the threaded hole at the lower end of the bracket plate 2 is matched with the position and shape of the through hole at the lower end of the plate slot connector 3. A fixing bolt is used to pass through the through hole at the lower end of the plate slot connector 3 and to be threadedly connected with the threaded hole at the lower end of the bracket plate 2, so as to fix the lower end of the bracket plate 2 to the plate slot connector 3, and further ensure the stability of the bracket plate 2.

[0042] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should fall within the protection scope of the present invention.

Claims

1. A bracket for a cable flexible joint, comprising a plurality of bracket groups; the bracket groups comprise a bracket plate (2) and a base (1), the bracket plate (2) and the base (1) being relatively fixed; characterized in that: A height adjustment component for adjusting the distance between the support plate (2) and the base (1) is provided between the base (1) and the support plate (2); The support plate (2) is a nylon plate, and the upper end of the support plate (2) has an arc-shaped slot; The lower end of the support plate (2) is provided with a plate groove connecting piece (3), and the support plate (2) is connected to the upper end of the height adjustment component via the plate groove connecting piece (3).

2. The cable flexible joint bracket according to claim 1, characterized in that: The base (1) is formed by welding steel plates; The height adjustment assembly comprises a support tube and a threaded rod (401); the upper end of the threaded rod (401) is welded and fixed to the plate groove connector (3), and the lower end of the threaded rod (401) is threadedly connected to the support tube; The lower end of the support tube is fixed on the base (1).

3. The cable flexible joint bracket according to claim 2, characterized in that: The support cylinder comprises a lower cylinder (402) and a nut (403); The lower end of the lower cylinder (402) is fixed on the base (1), and the nut (403) is welded to the upper end of the lower cylinder (402); the upper end of the lower cylinder (402) has a countersunk groove, and the threaded hole of the nut (403) is coaxially arranged with the countersunk groove of the lower cylinder (402). The lower end of the threaded rod (401) passes through the nut (403) and is inserted into the countersunk groove of the lower cylinder (402); the threaded rod (401) and the nut (403) are threadedly connected.

4. The cable flexible joint bracket according to claim 3, characterized in that: The threaded rod (401) is in sliding contact with the inner wall of the counterbore groove of the lower cylinder (402).

5. The cable flexible joint bracket according to claim 1, characterized in that: The plate-slot connector (3) is a strip-shaped metal block. The upper end of the plate-slot connector (3) has a placement slot extending along its length direction, and the lower end of the bracket plate (2) is inserted into the placement slot.

6. The bracket for a cable flexible joint according to claim 5, characterized in that: A plurality of fastening screws are installed on the side of the plate slot connector (3), the fastening bolts pass through the side of the plate slot connector (3) and are threadedly connected to the plate slot connector (3), and the front ends of the fastening bolts are in tight pressure contact with the side surface of the bracket plate (2) inserted into the placement groove.

7. The bracket for a cable flexible joint according to claim 1, characterized in that: The lower end of the plate-slot connector (3) is formed with a through hole, and the lower end of the bracket plate (2) is formed with a threaded hole; the threaded hole at the lower end of the bracket plate (2) is arranged in coordination with the through hole at the lower end of the plate-slot connector (3); The lower end of the plate slot connector (3) is provided with a fixing bolt, which passes through a through hole at the lower end of the plate slot connector (3) and is threadedly connected with a threaded hole at the lower end of the bracket plate (2).

8. The bracket for a cable flexible joint according to claim 3, characterized in that: Toggle rods (404) are welded and fixed on both sides of the nut (403).

9. The bracket for a cable flexible joint according to claim 1, characterized in that: A rubber pad is fixed to the lower end of the base (1).

10. The cable flexible joint bracket according to claim 1, characterized in that: The bracket groups are placed in parallel and at intervals.

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