Insulation cross arm for distribution network

Abstract

A mounting groove is formed in the lower surface of a mounting block, connecting plates are fixedly arranged at the upper ends of the two side faces, and fastening screw rods are rotationally arranged at the lower ends of the two side faces in a threaded and penetrating mode; a support a is arranged in the middle of the lower surface of the connecting plate, an adjusting groove is transversely formed in the outer end of the lower surface, a strip-shaped through hole is formed in the bottom face of the adjusting groove, the adjusting block is of a square structure and located in the adjusting groove, an insulator is fixedly arranged below the adjusting block, a connecting screw is fixedly arranged above the adjusting block, and the upper end of the connecting screw is located above the connecting plate through the strip-shaped through hole. The fixing assemblies are located under the mounting blocks, the two fixing blocks are symmetrically arranged on the two sides of the electric power supporting rod respectively, arc-shaped grooves are vertically formed in the middles of the inner side faces of the fixing blocks, supports b are fixedly arranged in the middles of the outer side faces of the fixing blocks, and cable-stayed braces are hinged between the supports b and the supports a on the same sides. The two fixing blocks are in limiting connection through a fixing bolt; the device has the advantages of being high in applicability and convenient to install and operate.

Description

Technical Field

[0001] The invention belongs to the technical field of distribution network installation, and in particular relates to an insulating cross arm for a distribution network. Background Art

[0002] The crossarm is an important component of the pole tower. Its function is to install insulators and hardware to support conductors and lightning conductors, meet the requirements of overhead laying of power cables, and keep a certain safety distance as required to ensure stable power transmission and use. However, when the insulating crossarm in the prior art is installed on the upper end of the power support pole, it is often necessary to cooperate with multiple people to place and fix the installation operation because it is an aerial operation. The entire installation operation process is cumbersome and it is easy to have asymmetric tilt problems during the installation process, thereby affecting subsequent use. Therefore, in order to solve the above problems, it is necessary to develop an insulating crossarm for distribution network that has strong applicability and convenient installation operation. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an insulating cross arm for a distribution network which has strong applicability and is easy to install and operate.

[0004] The object of the present invention is achieved as follows: an insulating cross arm for a distribution network, comprising a mounting block, an adjusting block and a fixing assembly, wherein the mounting block is cylindrical as a whole, and a mounting groove that matches the structure of the power support pole is vertically arranged at the center of its lower surface, and a connecting plate is transversely fixedly arranged at the upper ends of both side surfaces, and screw holes are transversely arranged at the lower ends of both side surfaces, and a fastening screw is rotatably penetrated by the inner thread of the screw hole, and the inner end of the fastening screw is located inside the mounting groove and in close contact with the outer surface of the power support pole; a support a is fixedly arranged in the middle of the lower surface of the connecting plate, and an adjusting groove is transversely arranged at one end of the lower surface away from the mounting block, and a strip through hole is transversely arranged at the center of the bottom surface of the adjusting groove, and the adjusting block is square in structure as a whole, and is located inside the adjusting groove, and a fixing arrangement is arranged below the adjusting block. There is an insulator with a connecting screw arranged on the top, the connecting screw is arranged vertically as a whole, the lower end of which is fixedly connected to the upper surface of the adjusting block, the upper end is located above the connecting plate through a strip through hole, and a limit nut is provided on a threaded rotating sleeve, the fixing assembly is located directly below the mounting block, and it includes a fixing block and a fixing bolt, the fixing block is arranged vertically as a whole, there are two of them, which are symmetrically arranged on both sides of the power support pole, and an arc groove matching the power support pole structure is vertically arranged in the middle of the inner side surface of the fixing block, and a support b is fixedly arranged in the middle of the outer side surface, and a diagonal brace is hingedly provided between the support b and the support a on the same side, there are multiple fixing bolts, which are transversely arranged at the front and rear ends of the two fixing blocks, and the limiting connection between the two fixing blocks is realized by locking the fixing bolts.

[0005] Furthermore, an electronic bird repeller is fixedly mounted on the upper surface of the mounting block.

[0006] Furthermore, the outer end of the fastening screw is located outside the mounting block and is coaxially fixedly connected with an auxiliary rotating block.

[0007] Furthermore, a spring washer is arranged between the limiting nut and the upper surface of the connecting plate, and the spring washer is sleeved on the outside of the connecting screw.

[0008] Furthermore, a rubber anti-skid layer matching its structure is fixedly provided on the inner wall of the arc-shaped groove.

[0009] Beneficial effects of the present invention: the present invention provides a mounting block, a mounting groove, a screw hole and a fastening screw. First, by using the matching sleeve of the mounting groove and the top of the power pole tower, the present invention as a whole can be positioned and placed on the top of the power pole tower, thereby increasing the convenience of the installation operation. Afterwards, the fastening screw is rotated by external force, and the threaded connection between the fastening screw and the screw hole is used to perform horizontal lateral movement while the fastening screw is rotated. Then, through the movement of the fastening screw, the inner end of the fastening screw is brought into close contact with the outer surface of the power pole tower. With this structure, the installation angle of the whole of the present invention can be limited and corrected by the cooperation of the two fastening screws, thereby avoiding the problem of tilting during the subsequent installation process. By providing an adjusting groove, a strip-shaped through hole, an adjusting block, a connecting screw and a limiting nut, and utilizing the sliding of the square adjusting block inside the adjusting groove, the adjusting block can be conveniently adjusted in lateral position under the action of an external force, so that the position of the insulator fixedly installed thereunder can be adjusted in lateral direction by moving the adjusting block, thereby completing the adjustment of the spacing between the two insulators, thereby increasing its applicability, and utilizing the threaded rotation sleeve connection between the limiting nut and the connecting screw, the limiting nut can be rotated by an external force after the position adjustment of the adjusting block is completed, at this time, utilizing the locking effect of the limiting nut, the close contact between the adjusting block and the bottom surface of the adjusting groove can be achieved, thereby completing the limiting connection between the adjusting block and the connecting plate; By setting a fixed block, a fixing bolt, a support a, a support b and a diagonal brace, and utilizing the hinged connection between the diagonal brace and the support a and the support b, the position of the fixed block can be adjusted while maintaining the vertical setting of the fixed block according to the diameter of the power support pole, so that the arc groove on the inner side of the fixed block is in close contact with the power support pole, and then, the locking effect of the fixing bolt is utilized to realize the limiting connection between the two fixed blocks; in general, the present invention has the advantages of strong applicability and convenient installation and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view of the present invention.

[0011] Figure 2 It is a cross-sectional view of the front view of the connection between the mounting block and the power support pole in the present invention.

[0012] Figure 3 It is a cross-sectional view of the front view of the connection between the fixing assembly and the power support pole in the present invention.

[0013] Figure 4 It is a cross-sectional view of the front view of the connection between the connecting plate, the adjusting block, the insulator and the connecting screw in the present invention.

[0014] Figure 5 It is a bottom view of the connection between the connecting plate and the adjusting block in the present invention.

[0015] In the figure: 1, mounting block 11, mounting groove 12, screw hole 13, fastening screw 2, adjusting block 3, fixing assembly 31, fixing block 32, fixing bolt 33, arc groove 34, support b 4, connecting plate 41, support a 42, adjusting groove 43, strip through hole 5, insulator 6, connecting screw 61, limiting nut 7, diagonal brace 8, electronic bird repeller. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, an insulating cross arm for distribution network includes a mounting block 1, an adjusting block 2 and a fixing assembly 3. The mounting block 1 is cylindrical as a whole, and a mounting groove 11 matching with the power support pole structure is vertically arranged at the center of its lower surface. Connecting plates 4 are fixedly arranged transversely at the upper ends of both side surfaces, and screw holes 12 are transversely arranged at the lower ends of both side surfaces. A fastening screw 13 is rotatably passed through the inner thread of the screw hole 12, and the inner end of the fastening screw 13 is located inside the mounting groove 11 and in close contact with the outer surface of the power support pole; a support a41 is fixedly arranged in the middle of the lower surface of the connecting plate 4, and an adjusting groove 42 is transversely arranged at the end of the lower surface away from the mounting block 1, and a strip through hole 43 is transversely arranged at the center of the bottom surface of the adjusting groove 42; the adjusting block 2 is a square structure as a whole, located inside the adjusting groove 42, and an insulator 5 is fixedly arranged below the adjusting block 2, and an insulator 5 is fixedly arranged above the adjusting block 2. A connecting screw 6 is provided, and the connecting screw 6 is vertically arranged as a whole, and its lower end is fixedly connected to the upper surface of the adjusting block 2, and the upper end is located above the connecting plate 4 through the strip through hole 43, and a limit nut 61 is threadedly rotated. The fixing assembly 3 is located directly below the mounting block 1, and includes a fixing block 31 and a fixing bolt 32. The fixing block 31 is vertically arranged as a whole, and there are two of them, which are symmetrically arranged on both sides of the power support pole, and an arc groove 33 that matches the power support pole structure is vertically arranged in the middle of the inner side surface of the fixing block 31, and a support b34 is fixedly arranged in the middle of the outer side surface, and a diagonal brace 7 is hingedly provided between the support b34 and the support a41 on the same side. There are multiple fixing bolts 32, which are transversely arranged at the front and rear ends of the two fixing blocks 31, and the limiting connection between the two fixing blocks 31 is realized by locking the fixing bolts 32.

[0018] An electronic bird repeller 8 is fixedly provided on the upper surface of the mounting block 1, and bird repeller operation can be performed using the electronic bird repeller 8; the outer end of the fastening screw 13 is located on the outside of the mounting block 1, and is concentrically fixedly connected with an auxiliary rotating block, and the auxiliary rotating block can be used to increase the convenience of rotating operation of the fastening screw 13; a spring gasket is provided between the limit nut 61 and the upper surface of the connecting plate 4, and the spring gasket is sleeved on the outside of the connecting screw 6, and the locking effect of the limit nut 61 can be increased by using the spring gasket; the inner wall of the arc groove 33 is fixedly provided with a rubber anti-skid layer matched with its structure, and the rubber anti-skid layer can be used to increase the friction generated when the arc groove 33 is in close contact with the outer wall of the power support pole, thereby improving the stability of the limit connection between the present invention and the power support pole.

[0019] When installing the present invention, first, the mounting groove 11 is used to fit the top of the power pole tower so as to position and place the present invention as a whole on the top of the power pole tower, thereby increasing the convenience of the installation operation of the present invention. Then, the fastening screw 13 is rotated by external force, and the threaded connection between the fastening screw 13 and the screw hole 12 is used to make a horizontal transverse movement while the fastening screw 13 is rotated. Then, the inner end of the fastening screw 13 is brought into close contact with the outer surface of the power pole tower through the movement of the fastening screw 13. With this structure, the installation angle of the whole present invention can be limited and corrected through the cooperation of the two fastening screws 13, thereby avoiding the problem of tilting during the subsequent installation process. Then, the position of the fixing block 31 is adjusted by external force by using the hinge connection between the diagonal brace 7 and the support a41 and the support b34, so that the fixing block 31 is kept in a vertical setting while the arc groove 33 on its inner side is in close contact with the outer wall of the power support pole. Then, the fixing bolt 32 is tightened to achieve the two The limiting connection between the fixing blocks 31 completes the limiting installation of the present invention as a whole on the power support pole. Finally, according to the spacing of the cables to be installed, the distance interval between the insulators 5 in the connecting plates 4 on both sides of the installation block 1 is adjusted. The specific adjustment operation is as follows: first, the square adjusting block 2 is used to slide inside the adjusting groove 42, so as to adjust the lateral position of the adjusting block 2 under the action of external force, and then the position of the insulator 5 fixedly installed thereunder is adjusted laterally by the movement of the adjusting block 2. With the movement of the insulator 5, the adjustment of the spacing between the two insulators 5 can be completed. Afterwards, the limiting nut 61 is rotated by external force. At this time, the threaded rotation sleeve between the limiting nut 61 and the connecting screw 6 is utilized, and the locking effect of the limiting nut 61 can be utilized to achieve close contact between the adjusting block 2 and the bottom surface of the adjusting groove 42, thereby completing the limiting connection between the adjusting block 2 and the connecting plate 4. In general, the present invention has the advantages of strong applicability and convenient installation operation.

[0020] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the specific implementation modes of the present invention can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An insulating cross arm for a distribution network, comprising a mounting block (1), an adjustment block (2) and a fixing assembly (3), characterized in that: The mounting block (1) is cylindrical in shape as a whole, and a mounting groove (11) matching with the structure of the power support pole is vertically arranged at the center of its lower surface, and a connecting plate (4) is transversely fixedly arranged at the upper ends of both side surfaces, and a screw hole (12) is transversely arranged at the lower ends of both side surfaces, and a fastening screw (13) is rotatably penetrated through the internal thread of the screw hole (12), and the inner end of the fastening screw (13) is located inside the mounting groove (11) and is in close contact with the outer surface of the power support pole; a support a (41) is fixedly arranged in the middle of the lower surface of the connecting plate (4), and an adjustment groove (42) is transversely arranged at one end of the lower surface away from the mounting block (1), and a strip-shaped through hole (43) is transversely arranged at the center of the bottom surface of the adjustment groove (42); the adjustment block (2) is square in structure as a whole, and is located inside the adjustment groove (42); an insulator (5) is fixedly arranged below the adjustment block (2), and a connecting screw (6) is arranged above the adjusting block (2), and the connecting screw ( 6) The whole is vertically arranged, and its lower end is fixedly connected to the upper surface of the adjustment block (2), and the upper end is located above the connecting plate (4) through the strip through hole (43), and a limit nut (61) is provided on the threaded rotating sleeve. The fixing assembly (3) is located directly below the mounting block (1), and comprises a fixing block (31) and a fixing bolt (32). The fixing block (31) is vertically arranged as a whole, and there are two of them, which are symmetrically arranged on both sides of the power support pole, and an arc groove (33) that matches the power support pole structure is vertically arranged in the middle of the inner side surface of the fixing block (31), and a support b (34) is fixedly arranged in the middle of the outer side surface. A diagonal brace (7) is hingedly provided between the support b (34) and the support a (41) on the same side. There are multiple fixing bolts (32), which are transversely arranged at the front and rear ends of the two fixing blocks (31), and the limit connection between the two fixing blocks (31) is realized by locking the fixing bolts (32).

2. The insulating cross arm for distribution network according to claim 1, characterized in that: An electronic bird repellent (8) is fixedly arranged on the upper surface of the mounting block (1).

3. The insulating cross arm for distribution network according to claim 1, characterized in that: The outer end of the fastening screw (13) is located outside the mounting block (1) and is coaxially fixedly connected to an auxiliary rotating block.

4. The insulating cross arm for distribution network according to claim 1, characterized in that: A spring washer is provided between the limiting nut (61) and the upper surface of the connecting plate (4), and the spring washer is sleeved on the outside of the connecting screw rod (6).

5. The insulating cross arm for distribution network according to claim 1, characterized in that: The inner wall of the arc-shaped groove (33) is fixedly provided with a rubber anti-slip layer matching its structure.

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