Electric power fitting with good constraint effect

Abstract

The invention provides an electric power fitting with a good constraint effect. The electric power fitting mainly comprises a main line bearing structure, a transition structure, a lead wire bearing structure, a main line constraint assembly, a lead wire constraint assembly and a stress relief mounting seat, the lead supporting structure comprises a lead supporting groove, lower fixing edges are arranged on the two sides of the lead supporting groove, and threaded mounting holes and limiting holes are formed in the lower fixing edges. The lead restraining assembly comprises a restraining gland, upper fixing edges are arranged on the two sides of the restraining gland, fastening screw rods and limiting columns are arranged on the upper fixing edges, the fastening screw rods are rotatably arranged at the bottoms of the upper fixing edges through bearings and matched with the threaded mounting holes, the limiting columns are matched with the limiting holes, and a stress dispersion layer is arranged on the inner side of the restraining gland; the restraining gland can effectively restrain the lead part, the problem that the restraining effect is poor due to single-point fixing of the clamping ring is solved, the stress dispersing layer can disperse stress and avoid stress concentration, the fixing mode is fast and convenient, and multi-person operation is not needed.

Description

Technical Field

[0001] The invention relates to the field of electric power fittings, and in particular to an electric power fitting with good restraint effect. Background Art

[0002] Power fittings are metal accessories that connect and combine various devices in the power system and play a role in transmitting mechanical loads, electrical loads and providing some protection. Most of the fittings need to withstand large tensile forces during operation, and some must also ensure good electrical contact. It is related to the safety of conductors or towers. Even if one is damaged, it may cause line failure. Therefore, the fittings have a great impact on the safe power transmission of the line.

[0003] The tension clamp is a common electrical hardware, which is mainly used to fix the conductor to withstand the conductor tension and hang the conductor on the tension string or tower. The existing tension clamps have the following problems:

[0004] 1. The lead restraint position is prone to stress concentration problems, and the conventional clamping ring fixing method cannot guarantee a good restraint effect on the line;

[0005] 2. The hanging part is easily affected by external forces, which may cause the line to deviate and affect the fixing effect of the line.

[0006] Therefore, there is an urgent need for an electrical fitting with good restraint effect that can solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide an electric power fitting with good restraint effect to solve the problems existing in the above-mentioned prior art.

[0008] To achieve the above object, the present invention provides the following solutions:

[0009] The present invention provides an electric power fitting with good restraint effect, comprising a main line supporting structure and a lead wire supporting structure, wherein the central axis of the main line supporting structure and the central axis of the lead wire supporting structure have an included angle, and a transition structure is provided at the connection between the two, a main line restraint assembly is provided above the main line supporting structure, a lead wire restraint assembly is provided above the lead wire supporting structure, and a stress relief mounting seat is provided on the transition structure;

[0010] Wherein, the lead wire supporting structure comprises a lead wire bracket, and lower fixing edges are arranged on both sides of the lead wire bracket, and threaded mounting holes and limiting holes are arranged on the lower fixing edges;

[0011] The lead restraint assembly includes a restraint cover, and upper fixed edges are provided on both sides of the restraint cover. A fastening screw and a limiting column are provided on the upper fixed edge. The fastening bolt is rotatably arranged at the bottom of the upper fixed edge through a bearing and cooperates with the threaded mounting hole. The limiting column cooperates with the limiting hole. A stress dispersion layer is provided on the inner side of the restraint cover.

[0012] By adopting the above technical solution, the restraining cover can effectively restrain the lead part, avoiding the problem of poor restraint effect caused by single-point fixation of the clamping ring. The stress dispersion layer can disperse the stress and avoid stress concentration. The fixing method is quick and simple and does not require multiple people to operate.

[0013] Preferably, the main line supporting structure comprises a main line bracket, and limiting slots are provided on both sides of the main line bracket. A positioning convex edge is provided on the inner side of the main line bracket, and the positioning convex edge corresponds to the position of the limiting slot.

[0014] By adopting the above technical solution, the positioning convex edge can effectively position it and prevent the main line from shifting due to loosening.

[0015] Preferably, the main line restraint assembly comprises a U-shaped snap ring, the U-shaped snap ring cooperates with the limiting groove, and a fastening nut is threadedly connected to the bottom of the U-shaped snap ring.

[0016] By adopting the above technical solution, since the main line part will not have the problem of stress concentration, it can be fixed with a simple U-shaped clamp, which can effectively reduce costs.

[0017] Preferably, a tightening ring is provided at the bottom of the tightening screw.

[0018] By adopting the above technical solution, the tightening ring can facilitate the rotation of the fastening screw.

[0019] Preferably, the stress dispersion layer is a grid structure.

[0020] By adopting the above technical solution, stress can be dispersed structurally.

[0021] Preferably, the stress dispersion layer is made of glass fiber reinforced plastic.

[0022] By adopting the above technical solution, stress can be dispersed from the material.

[0023] Preferably, the transition structure comprises a transition bracket, the transition bracket is an arc-shaped structure, and connecting T-shaped protrusions are provided on both sides of the transition bracket.

[0024] By adopting the above technical solution, the arc-shaped transition bracket can make the line transition smoothly.

[0025] Preferably, the stress relief mounting seat includes a seat body, a mounting cavity is provided at the bottom of the seat body, a connecting groove is provided on the side of the mounting cavity, the connecting groove cooperates with the connecting T-shaped protrusion, and a flexible energy-absorbing layer is provided on the inner surface, a spherical groove is provided on the top of the seat body, a smooth wear-resistant layer is provided in the spherical groove, a connecting ball is limited in the spherical groove, and a mounting ring is provided on the top of the connecting ball.

[0026] By adopting the above technical solution, the flexible energy-absorbing layer can absorb energy and avoid stress directly acting on the line. The cooperation between the spherical groove and the connecting sphere can realize multi-directional swing and achieve the effect of unloading force.

[0027] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0028] The present invention provides an electric hardware with good restraining effect, which mainly includes a main line supporting structure, a transition structure, a lead supporting structure, a main line restraining assembly, a lead restraining assembly and a stress relief mounting seat; wherein, the lead supporting structure includes a lead bracket, lower fixed edges are provided on both sides of the lead bracket, and threaded mounting holes and limiting holes are opened on the lower fixed edges; the lead restraining assembly includes a restraining cover, upper fixed edges are provided on both sides of the restraining cover, and fastening screws and limiting columns are provided on the upper fixed edges, the fastening bolts are rotatably arranged at the bottom of the upper fixed edge through a bearing, and cooperate with the threaded mounting hole, the limiting column cooperates with the limiting hole, and a stress dispersion layer is provided on the inner side of the restraining cover; the restraining cover can effectively restrain the lead part, avoid the problem of poor restraining effect caused by single-point fixation of the clamping ring, the stress dispersion layer can disperse the stress, avoid stress concentration, and the fixing method is quick and simple, and does not require multiple people to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 A schematic diagram of the structure of an electric power fitting with good restraint effect provided by the present invention;

[0031] Figure 2 A schematic diagram of the structure of the main line restraint part of an electric power fitting with good restraint effect provided by the present invention;

[0032] Figure 3 A schematic diagram of the structure of the lead restraining part of an electric power fitting with good restraining effect provided by the present invention;

[0033] Figure 4 A schematic diagram of the structure of a transition part of an electric hardware fitting with good restraint effect provided by the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The purpose of the present invention is to provide an electric power fitting with good restraint effect to solve the problems existing in the prior art.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Embodiment 1:

[0038] This embodiment provides an electrical fitting with good restraint effect, such as Figure 1-4 As shown, it includes a main line supporting structure 1 and a lead wire supporting structure 2, the central axis of the main line supporting structure 1 and the central axis of the lead wire supporting structure have an included angle, and a transition structure 3 is provided at the junction of the two, a main line restraint component 4 is provided above the main line supporting structure 1, a lead wire restraint component 5 is provided above the lead wire supporting structure 2, and a stress relief mounting seat 6 is provided on the transition structure 3;

[0039] The lead wire supporting structure 2 includes a lead wire bracket 21, and lower fixing edges 22 are provided on both sides of the lead wire bracket 21. The lower fixing edges 22 are provided with threaded mounting holes 23 and limiting holes 24.

[0040] The lead restraint assembly 5 includes a restraint cover 51, and upper fixed edges 52 are provided on both sides of the restraint cover 51. A fastening screw 53 and a limiting column 54 are provided on the upper fixed edge 52. A twist ring 57 is provided at the bottom of the fastening screw 53. The fastening bolt 53 is rotatably arranged at the bottom of the upper fixed edge 52 through a bearing 55, and cooperates with the threaded mounting hole 23. The limiting column 54 cooperates with the limiting hole 24. A stress dispersion layer 56 is provided on the inner side of the restraint cover 51, and the stress dispersion layer 56 adopts a grid structure made of fiberglass.

[0041] When it is necessary to constrain the lead, it is only necessary to insert the lead between the lead bracket 21 and the constraining cover 51, and turn the fastening screw 53 to make the lead bracket 21 and the constraining cover 51 buckle together. The constraining cover 51 can effectively constrain the lead part and avoid the problem of poor constraint effect caused by single-point fixation of the clamping ring. The stress dispersion layer 56 can disperse the stress and avoid stress concentration. The fixing method is quick and simple and does not require multiple people to operate.

[0042] As an implementation mode, the main line supporting structure 1 includes a main line bracket 11 , and limiting slots 12 are provided on both sides of the main line bracket 11 . A positioning flange 13 is provided on the inner side of the main line bracket 11 , and the positioning flange 13 corresponds to the position of the limiting slot 12 .

[0043] Furthermore, the main line restraint assembly 4 includes a U-shaped snap ring 41 , which cooperates with the limiting groove 12 , and a fastening nut 42 is threadedly connected to the bottom of the U-shaped snap ring 41 .

[0044] The main line supporting structure in this embodiment is similar to the main line fixing method of the existing traditional tension clamp, so this part of the structure will not be described in detail.

[0045] As an implementation manner, the transition structure 3 includes a transition bracket 31 . The transition bracket 31 is an arc-shaped structure. Connecting T-shaped protrusions 32 are provided on both sides of the transition bracket 31 .

[0046] Furthermore, the stress relief mounting seat 6 includes a seat body 61, a mounting cavity 62 is provided at the bottom of the seat body 61, a connecting groove 63 is provided on the side of the mounting cavity 62, the connecting groove 63 cooperates with the connecting T-shaped protrusion 32, and a flexible energy-absorbing layer 64 is provided on the inner surface, a spherical groove 65 is provided at the top of the seat body 61, a smooth wear-resistant layer 66 is provided in the spherical groove 65, a connecting ball 67 is limited in the spherical groove 65, and a mounting ring 68 is provided on the top of the connecting ball 67.

[0047] The flexible energy-absorbing layer 64 can absorb energy and prevent stress from acting directly on the line. The cooperation between the spherical groove 65 and the connecting ball 67 can achieve multi-directional swing to achieve the effect of unloading force.

[0048] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An electrical fitting with good restraint effect, characterized in that: The invention comprises a main line supporting structure (1) and a lead line supporting structure (2), wherein the central axis of the main line supporting structure (1) and the central axis of the lead line supporting structure have an included angle, and a transition structure (3) is provided at the junction of the two, a main line restraint component (4) is provided above the main line supporting structure (1), a lead line restraint component (5) is provided above the lead line supporting structure (2), and a stress relief mounting seat (6) is provided on the transition structure (3); The lead wire supporting structure (2) comprises a lead wire bracket (21), two sides of the lead wire bracket (21) are provided with lower fixing edges (22), and the lower fixing edges (22) are provided with threaded mounting holes (23) and limiting holes (24); The lead restraining assembly (5) includes a restraining cover (51), and upper fixed edges (52) are provided on both sides of the restraining cover (51). A fastening screw (53) and a limiting column (54) are provided on the upper fixed edge (52). The fastening bolt (53) is rotatably arranged at the bottom of the upper fixed edge (52) through a bearing (55) and cooperates with the threaded mounting hole (23). The limiting column (54) cooperates with the limiting hole (24). A stress dispersion layer (56) is provided on the inner side of the restraining cover (51).

2. The electric power fitting with good restraint effect according to claim 1 is characterized in that: The main line supporting structure (1) comprises a main line bracket (11), two sides of the main line bracket (11) are provided with limit slots (12), the inner side of the main line bracket (11) is provided with a positioning convex edge (13), and the positioning convex edge (13) corresponds to the position of the limit slot (12).

3. The electric power fitting with good restraint effect according to claim 2 is characterized in that: The main line restraint assembly (4) comprises a U-shaped snap ring (41), the U-shaped snap ring (41) matches the limit slot (12), and a fastening nut (42) is threadedly connected to the bottom of the U-shaped snap ring (41).

4. The electric power fitting with good restraint effect according to claim 1 is characterized in that: A screw ring (57) is provided at the bottom of the tightening screw (53).

5. The electric power fitting with good restraint effect according to claim 1 is characterized in that: The stress dispersion layer (56) is a grid-like structure.

6. The electric power fitting with good restraint effect according to claim 1, characterized in that: The stress dispersion layer (56) is made of glass fiber reinforced plastic.

7. The electric power fitting with good restraint effect according to claim 1, characterized in that: The transition structure (3) comprises a transition bracket (31), the transition bracket (31) is an arc-shaped structure, and connecting T-shaped protrusions (32) are provided on both sides of the transition bracket (31).

8. The electric power fitting with good restraint effect according to claim 1, characterized in that: The stress relief mounting seat (6) comprises a seat body (61), a mounting cavity (62) is provided at the bottom of the seat body (61), a connecting groove (63) is provided on the side of the mounting cavity (62), the connecting groove (63) cooperates with the connecting T-shaped protrusion (32), and a flexible energy absorption layer (64) is provided on the inner surface, a spherical groove (65) is provided at the top of the seat body (61), a smooth wear-resistant layer (66) is provided in the spherical groove (65), a connecting ball (67) is limited in the spherical groove (65), and a mounting ring (68) is provided on the top of the connecting ball (67).

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