A straight composite insulated crossarm for power distribution lines

Abstract

This utility model discloses a straight composite insulated crossarm for power distribution lines, relating to the field of insulated crossarms. It includes a fixing fitting with a U-shaped connecting groove formed on one side of its outer wall. A mounting bracket is fitted onto the outer side of the fixing fitting, and a locking bolt is inserted into the front lug of the mounting bracket. The locking bolt passes through the connecting groove and extends to the bottom of the fixing fitting. A first locking nut is threaded onto the lower outer wall of the locking bolt. Clamps are inserted into the top and bottom of the mounting bracket, and a second locking nut is threaded onto the outer wall of the straight section of the clamp. Insulating rods are fixedly installed at both ends of the fixing fitting, and a suspension mechanism is installed at the end of the insulating rod furthest from the fixing fitting. This utility model, by setting up a suspension mechanism, allows for adaptive assembly based on the number of conductor strands at both ends when there is more than one strand, improving the applicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of insulating crossarms, specifically a straight composite insulating crossarm for power distribution lines. Background Technology

[0002] An insulated crossarm consists of an insulating body, hardware connectors, etc. The insulating body provides electrical insulation, which can isolate the line conductors from the towers and prevent leakage and circuit break. It is generally made of glass fiber reinforced epoxy resin or other composite insulating materials, and has high insulation, high strength and high anti-aging properties.

[0003] In existing technologies, insulating crossarms are generally used to fix the conductors by connecting hardware at both ends. They can usually only fix one conductor on each side. If there are more than one conductor on each side, multiple insulating crossarms are required, which is not adaptable enough. Utility Model Content

[0004] The purpose of this utility model is to provide a straight composite insulated crossarm for power distribution lines in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a straight composite insulated crossarm for power distribution lines, comprising a fixing fitting, wherein a U-shaped connecting groove is formed on one side of the outer wall of the fixing fitting, a mounting bracket is sleeved on the outer side of the fixing fitting, a locking bolt is inserted into the front end ear of the mounting bracket, the locking bolt passes through the connecting groove and extends to the bottom of the fixing fitting, a first locking nut is threadedly connected to the lower outer wall of the locking bolt, clamps are inserted into the top and bottom of the mounting bracket, a second locking nut is threadedly connected to the outer wall of the straight tube of the clamp, and insulating rods are fixedly installed at both ends of the fixing fitting, and a suspension mechanism is installed at the end of the insulating rod away from the fixing fitting.

[0006] As a further embodiment of this utility model: the suspension mechanism includes a fixed frame, a fixed hoop is fixedly installed at the top of the arc-shaped part of the fixed frame, a rotating hoop is rotatably installed at one end of the fixed hoop, a fastening stud is integrally formed at the bottom of the ear of the rotating hoop, a U-shaped groove is opened on the ear of the fixed hoop for the fastening stud to be inserted, and a third locking nut is threaded to the bottom of the outer wall of the fastening stud.

[0007] As a further embodiment of this utility model: the suspension mechanism further includes two sets of through holes opened on the vertical plate of the fixing frame. The two sets of through holes are symmetrically distributed vertically. Each set of through holes includes two round holes. Insertion rods are inserted into the inner walls of the two sets of through holes that are close to each other on the two fixing frames.

[0008] As a further embodiment of this utility model: the suspension mechanism further includes a fixing plate welded to one end of the plug rod, the other end of the plug rod passes through the round hole and extends to the other side of the fixing frame, a mating plate is inserted into the outer wall of the inner side of the plug rod, and a fourth locking nut that is threadedly connected to the plug rod is provided on the outside of the mating plate.

[0009] As a further improvement of this utility model, the uppermost vertical plate of the fixing frame is fixedly installed at the end of the insulating rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a suspension mechanism, when the number of wire strands at both ends is greater than one, the device can be adapted to the number of wire strands, thus improving its applicability. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the connection groove of this utility model; Figure 3 This is a schematic diagram of the suspension mechanism of this utility model.

[0012] In the diagram: 1. Fixing hardware; 2. Connecting groove; 3. Mounting bracket; 4. Clamp; 5. Locking bolt; 6. Insulating rod; 7. Fixing bracket; 8. Fixing hoop; 9. Rotating hoop; 10. Fastening stud; 11. Round hole; 12. Insertion rod; 13. Fixing plate; 14. Connecting plate. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-3In this embodiment of the utility model, a straight composite insulated crossarm for a power distribution line includes a fixing hardware 1. A connecting groove 2 with a "U"-shaped structure is formed on one side of the outer wall of the fixing hardware 1. A mounting bracket 3 is sleeved on the outer side of the fixing hardware 1. A locking bolt 5 is inserted into the ear at the front end of the mounting bracket 3. The locking bolt 5 passes through the connecting groove 2 and extends to the bottom of the fixing hardware 1. A first locking nut is threadedly connected to the lower outer wall of the locking bolt 5. A clamp 4 is inserted into the top and bottom of the mounting bracket 3. A second locking nut is threadedly connected to the outer wall of the straight tube of the clamp 4. An insulating rod 6 is fixedly installed at both ends of the fixing hardware 1. A suspension mechanism is installed at the end of the insulating rod 6 away from the fixing hardware 1.

[0015] In this embodiment: First, when installing the straight crossarm, the mounting bracket 3 and clamp 4 are first clamped to the outer wall of the tower, and the second locking nut is threaded onto the straight rod part of the clamp 4 until it is effectively locked. After the mounting bracket 3 and clamp 4 are installed, the fixing hardware 1 is clamped into the inner side of the front end of the mounting bracket 3. Then, the locking bolt 5 is passed through the ear of the mounting bracket 3 and through the connecting groove 2. Then, the first locking nut is threaded onto the locking bolt 5. At this time, the fixing hardware 1 and the insulating rod 6 can be connected. After the connection is completed, the suspension mechanism can be used to connect the conductors. If there are more than one conductor on both sides, multiple suspension mechanisms can be connected to accommodate multiple conductors.

[0016] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The suspension mechanism includes a fixed frame 7, a fixed hoop 8 fixedly installed at the top of the arc-shaped part of the fixed frame 7, a rotating hoop 9 rotatably installed at one end of the fixed hoop 8, a fastening stud 10 integrally formed at the bottom of the ear of the rotating hoop 9, a U-shaped groove for inserting the fastening stud 10 is opened on the ear of the fixed hoop 8, and a third locking nut is threaded to the bottom of the outer wall of the fastening stud 10. The suspension mechanism also includes two sets of through holes opened on the vertical plate of the fixed frame 7. The two sets of through holes are symmetrically distributed vertically. One set of through holes includes two round holes 11. Insertion rods 12 are inserted into the inner walls of the two sets of through holes close to each other on the two fixed frames 7. The suspension mechanism also includes a fixed plate 13 welded to one end of the insertion rod 12. The other end of the insertion rod 12 passes through the round hole 11 and extends to the other side of the fixed frame 7. A mating plate 14 is inserted into the outer wall of the inner side of the insertion rod 12. A fourth locking nut threadedly connected to the insertion rod 12 is provided on the outside of the mating plate 14.

[0017] In this embodiment: when both sides have a single wire, the rotating hoop 9 is opened by rotating it upwards, and then the wire is inserted into the inner side of the rotating hoop 9 and the fixing hoop 8. Then the rotating hoop 9 is closed by rotating it. After the rotating hoop 9 is closed, the third locking nut is used to connect with the fastening stud 10 by thread until the third locking nut is effectively tightened. At this time, the single wire on both sides can be fixed. If there are more than one strand of wire on both sides, another fixing bracket 7 needs to be connected below the upper fixing bracket 7 according to the number of wire strands. First, insert the plug rod 12 on the fixing plate 13 into the inner wall of the two sets of through holes. After the plug rod 12 is inserted, insert the mating plate 14 into the outer wall of the plug rod 12. After the insertion is completed, use the fourth locking nut to connect with the thread at one end of the outer wall of the plug rod 12 until the fourth locking nut is effectively tightened. Then, another fixing bracket 7 can be connected below the upper fixing bracket 7. In this way, an adaptive connection can be made when the wire has multiple strands. To avoid connecting multiple strands of wire, the suspension mechanism should be made of high-strength, high-aging-resistant glass fiber reinforced epoxy resin or other composite insulating materials, and the number of strands of the connecting wires should not affect the stability of the device.

[0018] Please refer to this carefully. Figure 1 and Figure 2 The vertical plate of the uppermost fixing bracket 7 is fixedly installed at the end of the insulating rod 6.

[0019] In this embodiment, the fixed connection between the uppermost fixing frame 7 and the insulating rod 6 can provide a stable connection for the uppermost fixing frame 7.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A straight composite insulated crossarm for power distribution lines, comprising fixing hardware (1), characterized in that, The outer wall of the fixing hardware (1) is formed with a U-shaped connecting groove (2). The outer side of the fixing hardware (1) is fitted with a mounting bracket (3). A locking bolt (5) is inserted into the front ear of the mounting bracket (3). The locking bolt (5) passes through the connecting groove (2) and extends to the bottom of the fixing hardware (1). A first locking nut is threaded to the bottom of the outer wall of the locking bolt (5). A clamp (4) is inserted into the top and bottom of the mounting bracket (3). A second locking nut is threaded to the outer wall of the straight tube of the clamp (4). An insulating rod (6) is fixedly installed at both ends of the fixing hardware (1). A suspension mechanism is installed at the end of the insulating rod (6) away from the fixing hardware (1).

2. The linear composite insulated crossarm for power distribution lines according to claim 1, characterized in that, The suspension mechanism includes a fixed frame (7), a fixed hoop (8) is fixedly installed at the top of the arc-shaped part of the fixed frame (7), a rotating hoop (9) is rotatably installed at one end of the fixed hoop (8), a fastening stud (10) is integrally formed at the bottom of the ear of the rotating hoop (9), a U-shaped groove is opened on the ear of the fixed hoop (8) for the fastening stud (10) to be inserted, and a third locking nut is threaded to the bottom of the outer wall of the fastening stud (10).

3. The linear composite insulated crossarm for power distribution lines according to claim 2, characterized in that, The suspension mechanism also includes two sets of through holes opened on the vertical plate of the fixed frame (7). The two sets of through holes are symmetrically distributed vertically. One set of through holes includes two round holes (11). Insertion rods (12) are inserted into the inner walls of the two sets of through holes close to each other on the two fixed frames (7).

4. A linear composite insulated crossarm for power distribution lines according to claim 3, characterized in that, The suspension mechanism also includes a fixing plate (13) welded to one end of the plug rod (12), the other end of the plug rod (12) passes through the round hole (11) and extends to the other side of the fixing frame (7), a mating plate (14) is inserted into the outer wall of the inner side of the plug rod (12), and a fourth locking nut that is threadedly connected to the plug rod (12) is provided on the outside of the mating plate (14).

5. A linear composite insulated crossarm for power distribution lines according to claim 4, characterized in that, The vertical plate of the uppermost fixing frame (7) is fixedly installed at the end of the insulating rod (6).

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