Insulation cross arm device with damping wire clamp

Abstract

The utility model discloses an insulated cross arm device with a damping wire clamp, which comprises an insulated cross arm, a wire clamp body and a wire clamp pressing plate, the wire clamp body is provided with a locking groove, the wire clamp pressing plate is correspondingly provided with a locking block, and a wire is tightly pressed in the wire clamping groove through the matching of the wire clamp pressing plate and the wire clamp body. The locking block is driven by the wire clamp pressing plate to be accommodated in the locking groove, and then the retaining piece is inserted into the locking groove and abuts against the top side of the locking block, so that the locking block is prevented from being separated from the locking groove; according to the insulated cross arm device of the technical scheme, the wire clamp structure is adopted to achieve the purpose of pressing the wire without loosening, the wire clamp strength is high, the gripping force is reliable, the stress distribution on the wire is uniform, the wire is not damaged, the vibration resistance of the wire is improved, and the service life of the wire is prolonged. The service life of the lead is greatly prolonged, the installation is simple, the construction is convenient, and the operation reliability and safety of a distribution network line are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution network transmission, in particular to an insulating cross-arm device with a damping wire clamp. Background Art

[0002] Composite crossarm insulators are suspension brackets used in power transmission and distribution lines. They are primarily used to suspend and support the conductors and ground wires of high-voltage transmission lines, providing insulation protection. In the field of distribution line technology, lightning-induced overvoltage amplitudes on distribution lines are typically below 400 kV. The installation of insulated crossarms improves conductor-to-ground insulation, enabling the line to withstand most lightning-induced overvoltages. They also significantly reduce the line's induced lightning flashover rate, a significant advantage. Therefore, the selection and installation of insulated crossarms plays a crucial role in the stable operation and safe transmission of power lines.

[0003] An existing composite crossarm mainly consists of a composite insulator, end fittings, and a crossarm clamp. The end fittings of the insulating crossarm are provided with supporting arc grooves for installing conductors. In order to fix the conductors, the traditional method is to use aluminum wire or pre-twisted wire and other accessories to tie the conductors to the end fittings. This is complicated to install and construct. The stress concentration at the binding site often leads to insulation damage and conductor exposure corrosion, reducing the service life of the insulated wire. In severe cases, the binding site may break strands and wires, affecting the reliability of the distribution network line. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the insulating crossarms require the use of aluminum wire or pre-twisted wire binding to fix the conductors to the end fittings, which complicates the installation and construction, reduces the service life of the insulating wires, and affects the reliability of the distribution network line operation.

[0005] In order to solve the above technical problems, the utility model provides an insulating cross-arm device with a damping wire clamp, comprising an insulating cross-arm, a wire clamp body and a wire clamp pressure plate, wherein the wire clamp body is arranged at one end or both ends of the insulating cross-arm, the wire clamp pressure plate is rotatably connected to the wire clamp body, and a wire clamping groove is provided between the wire clamp pressure plate and the wire clamp body, and a locking structure is provided between the wire clamp pressure plate and the wire clamp body to keep the relative position of the two fixed, and the locking structure includes:

[0006] A locking groove is provided on the wire clamp body and is located on one side of the wire clamp groove;

[0007] A locking block is provided on the wire clamp pressure plate, and when the wire clamp pressure plate and the wire clamp body are aligned to form a wire clamping groove, the locking block is driven to be accommodated in the locking groove;

[0008] The stop member is inserted into the locking groove and abuts against the top side of the locking block, so that a limiting fit is formed between the stop member and the locking block for limiting the locking block from leaving the locking groove.

[0009] As a preferred solution, a damping component for wrapping and compressing the wires is provided in the wire clamping groove.

[0010] As a preferred solution, the wire clamp groove consists of two arc grooves arranged relatively to the wire clamp pressure plate and the wire clamp body, and the damping assembly includes two rubber clips respectively arranged in the two arc grooves.

[0011] As a preferred solution, the wire clamp body includes two limit baffles formed on both sides of the locking groove, and the two limit baffles are provided with a set of relative connecting holes. The retaining member is inserted into the connecting hole and cooperates with the top side of the locking block. The extension direction of the retaining member is parallel to the extension direction of the wire clamping groove.

[0012] As a preferred solution, the retaining member is a retaining pin inserted into the connecting hole, and the retaining pin is provided with a limiting structure for preventing the retaining pin from escaping from the connecting hole.

[0013] As a preferred solution, the limiting structure includes a socket provided on a side wall of one end of the retaining pin shaft, and a locking pin passing through the socket.

[0014] As a preferred solution, the limiting structure includes an annular groove provided on a side wall of one end of the retaining pin shaft, and a retaining ring engaged in the annular groove.

[0015] As a preferred solution, the retaining member is a retaining bolt inserted into the connecting hole, and the connecting hole is a screw hole structure that cooperates with the retaining bolt.

[0016] As a preferred solution, one end of the wire clamp pressure plate is hingedly provided on the wire clamp body, and a locking block is formed at the other end thereof; the end of the wire clamp body away from the wire clamp groove is provided with a connecting pipe portion fixedly connected to the insulating cross arm, and the locking groove is formed between the wire clamp groove and the connecting pipe portion.

[0017] As a preferred solution, the insulating cross-arm includes a composite insulator and a fixing hardware, and the fixing hardware is provided with a fixing frame for installing and connecting the pole.

[0018] Compared with the existing technology, the technical solution of this utility model has the following advantages:

[0019] The locking block is then driven by the clamping member to be inserted into the locking groove and abutted against the top side of the locking block, and the locking block is then restricted from being disengaged from the locking groove by the clamping member, so that the clamping plate and the clamping body are kept in relative position and locked, thereby achieving the purpose of clamping the wire in the clamping trough and preventing it from loosening. The insulating cross arm device with a damping wire clamp is provided with a wire clamp structure to clamp and tighten the wire. The wire clamp has high strength, reliable grip, uniform stress distribution on the wire, does not damage the wire, improves the vibration resistance of the wire, and greatly prolongs the service life of the wire. The wire clamp pressure plate and the clamp body can be locked and connected by the locking structure when they are aligned and compressed. The installation is simple and convenient for construction, which can greatly shorten the construction time. The operation can be completed by one person without any special tools, thereby ensuring the reliability and safety of the distribution network line operation.

[0020] 2. In the insulating cross-arm device with damping wire clamp provided by the utility model, the wire clamping groove is composed of two arc grooves arranged relatively to the wire clamp pressure plate and the wire clamp body, and the damping component includes two rubber clamps respectively arranged in the two arc grooves, so that the wire is wrapped and pressed by the rubber clamp in the wire clamping groove. This damping rubber clamp utilizes the unique viscoelasticity and deformation ability of rubber to have a good clamping and protective effect on the wire, thereby preventing wear, reducing amplitude, and improving product quality.

[0021] 3. In the insulating cross-arm device with damping wire clamp provided by the utility model, a relative set of connecting holes are provided on the two limit baffles on both sides of the locking groove. Such retaining member can be selected as a retaining pin shaft inserted into the connecting hole. When the wire clamp pressure plate is rotated and fastened to the wire clamp body, the locking block is driven to be inserted into the locking groove. At this time, as long as the retaining pin shaft is inserted into the connecting hole, the retaining pin shaft crosses the locking groove to play a limiting and pressing role on the locking block, thereby realizing the locking connection between the wire clamp pressure plate and the wire clamp body, and pressing the wire in the wire clamping groove to prevent it from loosening. By arranging a pin or a retaining ring at one end of the retaining pin shaft, the retaining pin or the retaining ring plays an axial limiting role on the retaining pin shaft inserted in the connecting hole, thereby preventing the retaining pin shaft from axially disengaging from the connecting hole, thereby ensuring the stability and reliability of the installation of the retaining pin shaft.

[0022] 4. In the insulating cross-arm device with damping wire clamp provided by the utility model, this retaining member can also be selected as a retaining bolt inserted into the connecting hole, and the corresponding connecting hole is set as a screw hole structure that cooperates with the retaining bolt, or a nut is set on one end of the retaining bolt passing through the connecting hole, and the nut is used to lock and connect the retaining bolt inserted between the two limit baffles. Such an installation setting can also prevent the retaining bolt from detaching from the connecting hole, and the installation stability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific implementation or the description of the prior art.

[0024] Figure 1 This is a schematic plan view of the structure of the insulating cross-arm device with a damping wire clamp of the utility model;

[0025] Figure 2 This is a schematic diagram of the installation structure of the wire clamp body and the wire clamp pressure plate of the utility model;

[0026] Figure 3 This is a schematic structural diagram of the locking structure of the present utility model;

[0027] Figure 4 This is a structural diagram of another locking structure of the present invention;

[0028] Explanation of the accompanying reference numerals: 1. Insulating crossarm; 11. Fixing hardware; 12. Fixing frame; 2. Wire clamp body; 21. Connecting pipe part; 3. Wire clamp pressure plate; 4. Locking groove; 41. Limit baffle; 42. Connecting hole; 5. Locking block; 6. Retaining piece; 61. Bayonet pin; 62. Retaining ring; 7. Wire clamp groove; 8. Rubber clamp. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] Example

[0033] This embodiment provides Figure 1-4The illustrated embodiment is an insulating cross-arm device with a damping wire clamp, comprising an insulating cross-arm 1, a wire clamp body 2 and a wire clamp pressure plate 3, the wire clamp body 2 being arranged at one end or both ends of the insulating cross-arm 1, the wire clamp pressure plate 3 being rotatably connected to the wire clamp body 2, and a wire clamping groove 7 being arranged between the wire clamp pressure plate 3 and the wire clamp body 2, a locking structure for maintaining the relative positions of the two being arranged between the wire clamp pressure plate 3 and the wire clamp body 2, the locking structure comprising a locking groove 4, a locking block 5 and a retaining member 6, the locking groove 4 being arranged at the wire clamp body 2 and being located on one side of the wire clamping groove 7; the locking block 5 being arranged at the wire clamp pressure plate 3, and when the wire clamp pressure plate 3 and the wire clamp body 2 are aligned to form the wire clamping groove 7, the locking block 5 is driven to be accommodated in the locking groove 4; the retaining member 6 is inserted into the locking groove 4 and abuts against the top side of the locking block 5, so that a limiting fit is formed between the retaining member 6 and the locking block 5 for limiting the locking block 5 from disengaging from the locking groove 4.

[0034] In the above embodiment, the wire is pressed tightly in the wire clamping groove 7 by the cooperation between the wire clamp pressure plate 3 and the wire clamp body 2, and the locking block 5 is driven by the wire clamp pressure plate 3 to be accommodated in the locking groove 4 of the wire clamp body 2, and then the retaining member 6 is inserted into the locking groove 4 and abuts against the top side of the locking block 5. The retaining member 6 can limit the locking block 5 from disengaging from the locking groove 4, thereby preventing the wire clamp pressure plate 3 from rotating relative to the wire clamp body 2, so that the relative position between the wire clamp pressure plate 3 and the wire clamp body 2 is maintained, thereby achieving the goal of locking the wire clamping groove 7. In order to press the wires tightly and prevent them from loosening, this insulating cross-arm device adopts a wire clamp structure to clamp and tighten the wires. This wire clamp has high strength, reliable grip, and uniform stress distribution on the wires, does not damage the wires, improves the vibration resistance of the wires, and greatly extends the service life of the wires. In addition, the wire clamp pressure plate and the wire clamp body can be locked and connected through a locking structure when they are combined to press the wires. The installation is simple and the construction is convenient, which can greatly shorten the construction time. The operation can be completed by one person without any special tools, ensuring the reliability and safety of the distribution network line operation.

[0035] The following combination Figure 2-4 The specific setting method of the anti-retraction part is described in detail:

[0036] The wire clamp body 2 includes two limiting baffles 41 formed on both sides of the locking groove 4, and the two limiting baffles are provided with a set of relative connecting holes 42. The retaining member 6 is inserted into the connecting hole 42 and cooperates to abut against the top side of the locking block 5. The extension direction of the retaining member 6 is parallel to the extension direction of the wire clamping groove 7. With this structural arrangement, when the wire clamp pressure plate 3 is rotated and fastened to the wire clamp body 2, the locking block 5 is driven to be inserted into the locking groove 4. At this time, as long as the retaining pin shaft is inserted into the connecting hole 42, the retaining pin shaft crosses the locking groove 4 to limit and press the locking block 5, thereby realizing the locking connection between the wire clamp pressure plate 3 and the wire clamp body 2, and pressing the wires in the wire clamping groove to prevent them from loosening.

[0037] As a preferred embodiment, refer to Figure 3 The stop member 6 is a stop pin inserted into the connecting hole 42, and the stop pin is provided with a limiting structure that prevents the stop pin from escaping from the connecting hole 42. It is further provided that the limiting structure includes a socket provided on the side wall of one end of the stop pin, and a bayonet 61 provided in the socket. The other end of the stop pin is a limiting end with a diameter larger than the aperture of the connecting hole 42. Therefore, the bayonet 61 cooperates with and abuts against the outer wall of one of the limit baffles 41, thereby playing an axial limiting role on the stop pin in the connecting hole 42 provided between the two limit baffles 41, and can prevent the stop pin from escaping from the connecting hole 42 along the axial direction, thereby ensuring the stability and reliability of the stop pin installed between the two limit baffles.

[0038] As an alternative to the above-mentioned limiting structure, refer to Figure 4 The limiting structure includes an annular groove provided on the side wall of one end of the retaining pin shaft, and a retaining ring 62 engaged in the annular groove. This structural setting, by providing the retaining ring 62 at one end of the retaining pin shaft, plays an axial limiting role on the retaining pin shaft passing through the connecting hole 42 through the retaining ring 62, thereby preventing the retaining pin shaft from escaping from the connecting hole 42, ensuring the stability and reliability of the retaining pin shaft installation. Those skilled in the art can make a choice of the specific structure of the limiting structure based on the above description, and other equivalent embodiments will not be described one by one here.

[0039] While the above embodiment shows that the retaining member 6 is preferably a pin structure, this is clearly not the only option. Alternatively, the retaining member 6 may be a retaining bolt inserted through the connecting hole 42, with the connecting hole 42 being a screw hole structure that cooperates with the retaining bolt. The retaining bolt and the screw hole structure cooperate to prevent the retaining bolt from disengaging from the connecting hole 42, ensuring that the retaining bolt, while being inserted transversely within the locking groove 4, acts as a position limiter for the locking block 5, thereby preventing the clamp pressure plate 3 from rotating relative to the clamp body 2 and opening the clamping groove 7. Alternatively, a nut may be provided at one end of the retaining bolt that passes through the connecting hole 42, thereby locking the retaining bolt inserted between the two limit stops. This eliminates the need for a screw hole structure, resulting in a simpler structure and easier installation. Using a retaining bolt also serves to limit the installation of the locking block 5, providing improved installation stability. Those skilled in the art will be able to select the specific structure of the retaining member based on the above description, and other equivalent embodiments will not be described in detail here.

[0040] In this embodiment, if Figure 1 As shown, the wire clamping groove 7 is provided with a damping component for wrapping and pressing the wire. Specifically, the wire clamping groove 7 is composed of two arc grooves relatively arranged on the wire clamp pressure plate 3 and the wire clamp body 2. The damping component includes two rubber clamps 8 respectively arranged in the two arc grooves. This design allows the wire to be wrapped and pressed by the rubber clamp 8 in the wire clamping groove 7. This damping rubber clamp 8 utilizes the unique viscoelasticity and deformation ability of rubber to have a good clamping and protective effect on the wire, and has the effect of preventing wear and reducing amplitude, thereby improving product quality.

[0041] It is further preferred that one end of the wire clamp pressure plate 3 is hingedly provided on the wire clamp body 2, and a locking block 5 is formed at the other end thereof, so that the wire clamp pressure plate 3 can be rotatably opened or closed relative to the wire clamp body, wherein the end of the wire clamp body 2 away from the wire clamp slot is provided with a connecting pipe portion 21 fixedly connected to the insulating crossarm 1, and the locking slot 4 is formed between the wire clamp slot 7 and the connecting pipe portion 21. The wire clamp body 2 is pressed against the end of the insulating crossarm 1 through the connecting pipe portion 21, and the insulating crossarm 1 includes at least two parts of composite insulators and a fixing hardware 11 connected between the two parts of the insulators. The fixing hardware 11 is provided with two fixing frames 12 for installing and connecting the pole. This fixing hardware is fixed to the pole by cooperating with the U-shaped clamp, thereby realizing the installation and fixation of the insulating crossarm.

[0042] The composite insulating cross-arm provided in this embodiment has the following main uses: First, it plays the role of insulation protection: the composite insulating cross-arm provides insulation protection for the power line through its insulating material (such as silicone rubber or polymer), has good electrical insulation performance, can effectively prevent electrical short circuits between the conductor and the ground wire, and avoid arc discharge between the conductor and the cross-arm; second, it plays the role of carrying the conductor and the ground wire: the composite insulating cross-arm can carry the conductor and the ground wire in the high-voltage transmission line, firmly suspend the conductor and the ground wire, and maintain their horizontal and vertical positions, effectively supporting the conductor system of the power line and ensuring the normal operation of the line; third, it can realize the series connection of insulators: the composite insulating cross-arm can achieve a larger insulation distance by connecting multiple insulators in series. This series design can increase the electrical insulation performance of the insulator and improve its resistance to arc discharge and flashover; fourth, it improves tensile strength: the composite insulating cross-arm can withstand high tension and tensile strength requirements, can withstand the tension and vibration in the power line to ensure the stable operation of the power line.

[0043] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An insulating crossarm device with a damping wire clamp, comprising an insulating crossarm (1), a wire clamp body (2) and a wire clamp pressure plate (3), wherein the wire clamp body (2) is arranged at one end or both ends of the insulating crossarm (1), the wire clamp pressure plate (3) is rotatably connected to the wire clamp body (2), and a wire clamping groove (7) is provided between the wire clamp pressure plate (3) and the wire clamp body (2), characterized in that: A locking structure for maintaining a fixed relative position between the wire clamp pressure plate (3) and the wire clamp body (2) is provided, the locking structure comprising: A locking groove (4) is provided on the wire clamp body (2) and is located on one side of the wire clamping groove (7); A locking block (5) is provided on the wire clamp pressure plate (3), and when the wire clamp pressure plate (3) and the wire clamp body (2) are buckled together to form a wire clamping groove (7), the locking block (5) is driven to be accommodated in the locking groove (4); A stopper (6) is inserted into the locking groove (4) and abuts against the top side of the locking block (5), so that a limiting fit is formed between the stopper (6) and the locking block (5) for limiting the locking block (5) from leaving the locking groove; The wire clamp body (2) includes two limiting baffles (41) formed on both sides of the locking groove (4), and the two limiting baffles are provided with a set of opposite connecting holes (42). The retaining member (6) is inserted into the connecting hole (42) and cooperates with the top side of the locking block (5). The extension direction of the retaining member (6) is parallel to the extension direction of the wire clamping groove (7); the retaining member (6) is a retaining pin shaft inserted into the connecting hole (42), and the retaining pin shaft is provided with a limiting structure for preventing the retaining pin shaft from escaping from the connecting hole (42).

2. The insulating cross-arm device with a damping clamp according to claim 1, characterized in that: A damping component for wrapping and compressing the wire is provided in the wire clamping groove (7).

3. The insulating cross-arm device with a damping clamp according to claim 2, characterized in that: The wire clamp groove (7) is composed of two arc grooves arranged relatively to the wire clamp pressure plate (3) and the wire clamp body (2), and the damping component includes two rubber clamps (8) respectively arranged in the two arc grooves.

4. The insulating cross-arm device with a damping clamp according to claim 3, characterized in that: The limiting structure comprises an insertion hole provided on a side wall of one end of the retaining pin shaft, and a locking pin (61) provided in the insertion hole.

5. The insulating cross-arm device with damping clamp according to claim 4, characterized in that: The limiting structure comprises an annular clamping groove provided on a side wall of one end of the retaining pin shaft, and a retaining ring (62) clamped in the annular clamping groove.

6. The insulating cross-arm device with a damping clamp according to claim 1, characterized in that: The retaining member (6) is a retaining bolt inserted into the connecting hole (42), and the connecting hole (42) is a screw hole structure matched with the retaining bolt.

7. The insulating cross-arm device with a damping clamp according to claim 1, characterized in that: One end of the wire clamp pressure plate (3) is hingedly arranged on the wire clamp body (2), and a locking block (5) is formed on the other end thereof; an end of the wire clamp body (2) away from the wire clamp slot is provided with a connecting pipe portion (21) fixedly connected to the insulating cross arm (1), and the locking slot (4) is formed between the wire clamp slot (7) and the connecting pipe portion (21).

8. The insulating cross-arm device with a damping clamp according to claim 1, characterized in that: The insulating cross arm (1) comprises a composite insulator and a fixing hardware (11), and the fixing hardware (11) is provided with a fixing frame (12) for installing and connecting an electric pole.

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