Composite insulating cross arm

Abstract

The utility model relates to the technical field of cross arms, and discloses a composite insulation cross arm which comprises a telegraph pole and an insulation rod, the two ends of the insulation rod are respectively provided with a connecting block used for being connected with an electric wire, the insulation rod is provided with a connecting assembly used for being fixed to the telegraph pole, and the connecting assembly comprises an insulation plate and a fixing ring. The fixing ring is provided with a buffering assembly used for buffering stress transmitted on the telegraph pole, the buffering assembly internally comprises an elastic block and an elastic ring, the fixing ring is internally provided with a buffering part used for buffering stress on the elastic block, and the buffering part internally comprises a fixing base, an extension rod and a reset spring. According to the utility model, through the design of the elastic block, the elastic ring and the reset spring, the stress applied to the connection part can be dispersed and buffered in multiple directions, the stress buffering effect is improved, the stability of the insulating rod and the insulating plate is maintained, and the risk that the connected wire shakes and falls off due to shaking caused by the shaking of the insulating rod and the insulating plate under the impact of external force is avoided; and potential safety hazards exist.

Description

Technical Field

[0001] The utility model relates to the technical field of cross arms, in particular to a composite insulating cross arm. Background Art

[0002] The function of the crossarm: The angle iron fixed horizontally on the top of the pole, with a porcelain bottle on it, is used to support the overhead wires. The crossarm is an important component of the pole tower. Its function is to install insulators and hardware to support the conductors and lightning conductors, and to maintain a certain safety distance as required.

[0003] When the existing crossarm is installed on the utility pole, there is no suitable buffer device on it. When external force impacts the crossarm, the connection is difficult to withstand the pressure, causing it to shake, which in turn causes the wires connected to the crossarm to shake synchronously, posing a risk of falling off and posing a safety hazard.

[0004] To this end, we propose a composite insulating crossarm. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a composite insulating cross arm.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a composite insulating crossarm, including a utility pole and an insulating pole, both ends of the insulating pole are provided with connecting blocks for connecting to the electric wires, and the insulating pole is provided with a connecting assembly for fixing to the utility pole, the connecting assembly includes an insulating plate and a fixing ring, the fixing ring is provided with a buffer assembly for buffering the stress transmitted to the utility pole, the buffer assembly includes an elastic block and an elastic ring, and the fixing ring is provided with a buffer part for buffering the stress on the elastic block, and the buffer part includes a fixing seat, an extension rod and a reset spring.

[0007] Furthermore, the fixing ring is in a U-shaped structure, the circular section of the fixing ring is adapted to the outer wall of the electric pole, and both ends of the fixing ring are provided with threaded grooves for fixing, and the threaded grooves are threadedly connected with fixing nuts for fixing.

[0008] Furthermore, the insulating rod is fixedly connected to the outer wall of one side of the insulating plate, and fixing holes are opened on both sides of the upper and lower ends of the outer wall of one side of the insulating plate, and the two ends of the fixing ring pass through the inner wall of the fixing hole and are fixed by fixing nuts.

[0009] Furthermore, the elastic ring is a special-shaped block with a cross section of multiple arc components, and the multiple arcs are arranged in a circle with the center of the circular segment of the fixing ring fixedly connected to the circular segment on the fixing ring.

[0010] Furthermore, the inner wall of the fixing ring is provided with a plurality of fixing grooves arranged in a circumference, the fixing grooves are located in the gap between the elastic ring and the fixing ring, and the elastic blocks are fixedly connected to the inner walls of the fixing grooves.

[0011] Furthermore, a plurality of sliding holes arranged in a circumference are formed on the inner wall of the fixing groove, and a piston plate is slidably connected to the inner wall of the sliding hole.

[0012] Furthermore, one end of the fixed seat is fixedly connected to the inner wall of one side of the sliding hole, the extension rod is slidably connected to the inner wall of the fixed seat, the other end of the extension rod is fixedly connected to one end of the piston plate, and a damping fluid for providing resistance is arranged in the fixed seat, the return spring is sleeved on the fixed seat and the outer wall of the extension rod, and the two ends of the return spring are respectively fixedly connected to the opposite wall surfaces of the piston plate and the sliding hole.

[0013] Furthermore, one end of the elastic ring away from the inner wall of the fixing ring is fixedly connected to a plurality of linearly arranged damping strips, and the damping strips are strips with a right-angled triangle cross section.

[0014] Beneficial Effects

[0015] The utility model provides a composite insulating cross arm, which has the following beneficial effects:

[0016] (1) This composite insulating crossarm, through the design of elastic blocks, elastic rings and reset springs, can disperse and buffer the stress on the connection in multiple directions, improve the buffering effect of the stress, maintain the stability of the insulating rod and the insulating plate, and prevent them from shaking under the impact of external forces, causing the connected wires to shake and there is a risk of falling off, posing a safety hazard.

[0017] (2) This composite insulating crossarm has an elastic ring that is designed so that when connected, it can avoid being squeezed by the electric pole and produce corresponding deformation, fill the gap between the fixed ring and the electric pole, increase the friction between the two, and maintain the stability of the connection.

[0018] (3) The composite insulating cross arm has a damping strip, and the design of the damping strip enables the damping strip to contact the outer wall of the pole when the elastic ring contacts the outer wall of the pole, thereby increasing the friction between the two and further improving the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the front view of the utility model;

[0020] Figure 2 For this utility model Figure 1 A magnified view of part A;

[0021] Figure 3 This is a cross-sectional view of the fixing ring of the utility model;

[0022] Figure 4 For this utility model Figure 3 A magnified view of part B;

[0023] Figure 5 This is a partial detailed view of the elastic ring in the second embodiment of the present utility model.

[0024] Legend: 1. Electric pole; 2. Insulating rod; 3. Connecting block; 4. Insulating plate; 5. Fixing ring; 6. Fixing nut; 7. Elastic block; 8. Elastic ring; 9. Fixing seat; 10. Extension rod; 11. Return spring; 12. Piston plate; 13. Damping strip. DETAILED DESCRIPTION

[0025] Embodiment 1: A composite insulating cross arm, such as Figure 1 and Figure 2 As shown, it includes a utility pole 1 and an insulating pole 2, both ends of the insulating pole 2 are provided with connecting blocks 3 for connecting to the electric wires, and the insulating pole 2 is provided with a connecting assembly for fixing to the utility pole 1, the connecting assembly includes an insulating plate 4 and a fixing ring 5, the fixing ring 5 is provided with a buffer assembly for buffering the stress transmitted on the utility pole 1, the buffer assembly includes an elastic block 7 and an elastic ring 8, and the fixing ring 5 is provided with a buffer part for buffering the stress on the elastic block 7, and the buffer part includes a fixing seat 9, an extension rod 10 and a reset spring 11.

[0026] The fixing ring 5 is of U-shaped structure, the circular section of the fixing ring 5 is matched with the outer wall of the electric pole 1, and both ends of the fixing ring 5 are provided with thread grooves for fixing, and the thread grooves are threadedly connected with fixing nuts 6 for fixing.

[0027] The insulating rod 2 is fixedly connected to the outer wall of one side of the insulating plate 4, and fixing holes are opened on both sides of the upper and lower ends of the outer wall of one side of the insulating plate 4. The two ends of the fixing ring 5 pass through the inner wall of the fixing hole and are fixed by fixing nuts 6.

[0028] like Figure 3 and Figure 4 As shown, the elastic ring 8 is a special-shaped block with a cross section of multiple arc components, and the multiple arcs are arranged in a circle with the center of the circular segment of the fixing ring 5 fixedly connected to the circular segment on the fixing ring 5.

[0029] By setting the elastic ring 8, the design of the elastic ring 8 can avoid the extrusion of the electric pole 1 during connection to produce corresponding deformation, fill the gap between the fixing ring 5 and the electric pole 1, increase the friction between the two, and maintain the stability of the connection.

[0030] The inner wall of the fixing ring 5 is provided with a plurality of fixing grooves arranged in a circumference. The fixing grooves are located in the gap between the elastic ring 8 and the fixing ring 5. The elastic block 7 is fixedly connected to the inner wall of the fixing groove.

[0031] The inner wall of the fixing groove is provided with a plurality of sliding holes arranged in a circumference, and the inner wall of the sliding hole is slidably connected with a piston plate 12 .

[0032] One end of the fixed seat 9 is fixedly connected to the inner wall of one side of the sliding hole, the extension rod 10 is slidably connected to the inner wall of the fixed seat 9, and the other end of the extension rod 10 is fixedly connected to one end of the piston plate 12. A damping fluid for providing resistance is arranged in the fixed seat 9. The return spring 11 is sleeved on the outer wall of the fixed seat 9 and the extension rod 10, and the two ends of the return spring 11 are respectively fixedly connected to the piston plate 12 and the wall surface opposite to the sliding hole.

[0033] In summary, through the design of the elastic block 7, the elastic ring 8 and the return spring 11, the stress on the connection can be dispersed and buffered in multiple directions, thereby improving the buffering effect of the stress and maintaining the stability of the insulating rod 2 and the insulating plate 4 to prevent them from shaking under the impact of external force, causing the connected wires to shake and there is a risk of falling off, posing a safety hazard.

[0034] Embodiment 2: Based on Embodiment 1, refer to Figure 5 One end of the elastic ring 8 away from the inner wall of the fixing ring 5 is fixedly connected with a plurality of linearly arranged damping strips 13, and the damping strips 13 are strips with a right-angled triangle cross section.

[0035] By setting the damping strip 13 and designing the damping strip 13 , when the elastic ring 8 contacts the outer wall of the utility pole 1 , the damping strip 13 can contact the outer wall of the utility pole 1 , thereby increasing the friction between the two and further improving the stability of the connection.

[0036] The working principle of the utility model is as follows: when the insulating rod 2 needs to be installed, the fixing ring 5 is sleeved on the electric pole 1, and the fixing nut 6 is screwed into the threaded groove on the fixing ring 5, and the fixing ring 5 is fixed on the outer wall of the electric pole 1, and the insulating rod 2 can be installed. When external force impacts the insulating rod 2 and the insulating plate 4, the impact stress can drive the elastic ring 8 to deform and squeeze the elastic block 7 through the extrusion of the elastic ring 8. The elastic block 7 is squeezed and can enter the sliding hole through deformation to squeeze the piston plate 12, thereby driving the reset spring 11 to contract to buffer the stress, and driving the extension rod 10 to slide in the fixing seat 9 to generate resistance to the extrusion of the damping fluid, and absorbing the elastic potential energy generated by the contraction of the reset spring 11.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A composite insulating crossarm, comprising a utility pole (1) and an insulating rod (2), characterized in that: Both ends of the insulating rod (2) are provided with connection blocks (3) for connecting to electric wires, and the insulating rod (2) is provided with a connection assembly for fixing to the electric wire pole (1), the connection assembly comprising an insulating plate (4) and a fixing ring (5), the fixing ring (5) being provided with a buffer assembly for buffering stress transmitted on the electric wire pole (1), the buffer assembly comprising an elastic block (7) and an elastic ring (8), and the fixing ring (5) being provided with a buffer portion for buffering stress on the elastic block (7), the buffer portion comprising a fixing seat (9), an extension rod (10) and a reset spring (11).

2. The composite insulating crossarm according to claim 1, characterized in that: The fixing ring (5) has a U-shaped structure, the circular section of the fixing ring (5) is adapted to the outer wall of the electric pole (1), and both ends of the fixing ring (5) are provided with threaded grooves for fixing, and the threaded grooves are threadedly connected with fixing nuts (6) for fixing.

3. The composite insulating crossarm according to claim 2, characterized in that: The insulating rod (2) is fixedly connected to the outer wall of one side of the insulating plate (4), and fixing holes are provided on both upper and lower ends of the outer wall of one side of the insulating plate (4), and both ends of the fixing ring (5) pass through the inner wall of the fixing hole and are fixed by fixing nuts (6).

4. The composite insulating crossarm according to claim 1, characterized in that: The elastic ring (8) is a special-shaped block with a cross section of multiple arc components, and the multiple arcs are arranged in a circle with the center of the circular segment of the fixed ring (5) fixedly connected to the circular segment on the fixed ring (5).

5. The composite insulating crossarm according to claim 4, characterized in that: The inner wall of the fixing ring (5) is provided with a plurality of fixing grooves arranged in a circumferential pattern. The fixing grooves are located in the gap between the elastic ring (8) and the fixing ring (5), and the elastic block (7) is fixedly connected to the inner wall of the fixing groove.

6. The composite insulating crossarm according to claim 5, characterized in that: The inner wall of the fixing groove is provided with a plurality of sliding holes arranged in a circumferential pattern, and the inner walls of the sliding holes are slidably connected to the piston plates (12).

7. The composite insulating crossarm according to claim 6, characterized in that: One end of the fixing seat (9) is fixedly connected to the inner wall of one side of the sliding hole, the extension rod (10) is slidably connected to the inner wall of the fixing seat (9), the other end of the extension rod (10) is fixedly connected to one end of the piston plate (12), a damping fluid for providing resistance is provided in the fixing seat (9), a return spring (11) is sleeved on the outer wall of the fixing seat (9) and the extension rod (10), and the two ends of the return spring (11) are respectively fixedly connected to the piston plate (12) and the wall surface opposite to the sliding hole.

8. The composite insulating crossarm according to claim 1, characterized in that: A plurality of linearly arranged damping strips (13) are fixedly connected to one end of the elastic ring (8) away from the inner wall of the fixed ring (5), and the damping strips (13) are strips with a right-angled triangle cross section.

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