Linear composite insulating cross arm and method

Abstract

The invention discloses a linear type composite insulation cross arm and method. The cross arm comprises a cross arm body, and a wire clamp is arranged at one end of the cross arm body; the wire clamp comprises a quick pressing body, a quick pressing cover plate, a quick pressing connecting rod and a quick pressing wrench; a space for accommodating a wire is arranged on the quick pressing body; the quick pressing body is connected with the cross arm body; the first end of the quick pressing body is hinged with the quick pressing cover plate, and the quick pressing cover plate can rotate to be buckled on the space for accommodating the wire; the second end of the quick pressing body is hinged to one end of the quick pressing connecting rod; the other end of the quick pressing connecting rod is hinged with a quick pressing wrench; after the quick pressing cover plate is buckled on the space for accommodating the wire, the quick pressing connecting rod can rotate to penetrate through the quick pressing cover plate; when the fast pressing cover plate is buckled on the space for accommodating the wire and the fast pressing connecting rod passes through the fast pressing cover plate, the fast pressing wrench can be rotated to be buckled on the fast pressing cover plate so as to lock the fast pressing cover plate and the fast pressing body. The insulated wire can be clamped through the wire clamp only by controlling the quick pressing wrench, and the operation is simple and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of power cables, and in particular to a linear composite insulating cross arm and a method. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] At present, the overhead lines of distribution networks use column and pin insulators to fix the conductors of straight poles on crossarms. The fastening method is mostly completed by binding single-strand cables. Some composite insulators are fastened with bolts. The installation work is cumbersome and inefficient. Traditional iron crossarms take up a large space and cannot be effectively adjusted according to the environment, resulting in a waste of space resources. When installed on narrow roads, they are close to houses and buildings. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a linear composite insulating crossarm and method. The insulated wire can be clamped by a wire clamp only by operating a quick-press wrench. The operation is simple and convenient. The linear composite insulating crossarm can be installed on one or both sides of the pole at will, meeting the needs of various wire arrangement forms and reducing space requirements.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] In a first aspect, a linear composite insulating crossarm is provided, comprising a crossarm body, one end of which is provided with a wire clamp;

[0007] The wire clamp includes a quick-press body, a quick-press cover plate, a quick-press connecting rod and a quick-press wrench;

[0008] A space for accommodating the wire is provided on the quick-pressing body; the quick-pressing body is connected to the cross-arm body; the first end of the quick-pressing body is hinged to the quick-pressing cover plate, and the quick-pressing cover plate can be rotated to be buckled on the space for accommodating the wire; the second end of the quick-pressing body is hinged to one end of the quick-pressing connecting rod; the other end of the quick-pressing connecting rod is hinged to the quick-pressing wrench; when the quick-pressing cover plate is buckled on the space for accommodating the wire, the quick-pressing connecting rod can be rotated to pass through the quick-pressing cover plate; when the quick-pressing cover plate is buckled on the space for accommodating the wire and the quick-pressing connecting rod passes through the quick-pressing cover plate, the quick-pressing wrench can be rotated to be buckled on the quick-pressing cover plate to lock the quick-pressing cover plate and the quick-pressing body.

[0009] Furthermore, buffer pads are provided on the quick-press body and the quick-press cover plate, and the buffer pads can be replaced and adjusted according to different wire models.

[0010] Furthermore, the first end of the quick-pressing cover plate is hinged to the quick-pressing body; the second end of the quick-pressing cover plate is provided with a passage for the quick-pressing connecting rod to pass through.

[0011] Furthermore, a limiting protrusion is provided at one end of the quick-pressing cover plate through which the quick-pressing connecting rod passes;

[0012] After the quick-pressing connecting rod passes through the quick-pressing cover plate, the end of the quick-pressing wrench hinged to the quick-pressing connecting rod contacts the limiting protrusion; after the quick-pressing wrench is rotated and buckled on the quick-pressing cover plate, the limiting protrusion limits the end of the quick-pressing wrench hinged to the quick-pressing connecting rod to prevent the quick-pressing cover plate from opening.

[0013] Further, the inner surface of the quick-press cover plate faces the space for accommodating the wires;

[0014] The outer surface of the quick-pressing cover plate is in an arc shape; the arc-shaped outer surface of the quick-pressing cover plate is transitionally connected with the limiting protrusion.

[0015] Furthermore, a limit block is provided at the second end of the quick-pressing body, and the limit block provides a limit for the rotation of the quick-pressing cover plate.

[0016] Furthermore, the quick-press wrench comprises a wrench body and a cam; one end of the wrench body is connected to the cam; the cam is hinged to the quick-press connecting rod; and the wrench body is in an arc shape.

[0017] Furthermore, the cross arm body includes an insulating core rod, which is respectively connected to the quick-press body and the compression tube; an insulating umbrella skirt is sleeved on the outside of the insulating core rod; and the compression tube is used to connect to the clamp of the cement pole.

[0018] Furthermore, a pin hole is provided on the crimping tube;

[0019] The compression tube is connected to the clamp through the pin hole.

[0020] In the second aspect, a method for using the linear composite insulating crossarm proposed in the first aspect is proposed, comprising:

[0021] Rotate the quick-pressing cover until it fits into the space accommodating the wires;

[0022] Operate the quick-press wrench to rotate the quick-press connecting rod until it passes through the quick-press cover plate;

[0023] Rotate the quick-press wrench to make it buckle on the quick-press cover plate, and lock the quick-press cover plate and the quick-press body.

[0024] Further, the quick-press wrench and the quick-press connecting rod are rotated in the opposite direction to loosen the quick-press cover plate from the quick-press body;

[0025] When the quick-pressing connecting rod is disengaged from the quick-pressing cover plate, the quick-pressing cover plate is rotated in the reverse direction to open the quick-pressing cover plate.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention proposes a linear composite insulating cross arm and method, wherein the cross arm is provided with a wire clamp at the end of the cross arm body; the quick-press cover plate in the wire clamp can be buckled on the space of the quick-press body to accommodate the wire, and then, by rotating the quick-press wrench and the quick-press connecting rod, the quick-press wrench can be buckled on the quick-press cover plate, thereby locking the quick-press cover plate and the quick-press body, without the need for additional tools, simple operation, convenient installation, capable of shortening the installation time and improving work efficiency. The total length of the cross arm is small, and the pole can be installed on one or both sides at will, meeting a variety of wire arrangement forms and reducing space requirements.

[0028] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0030] Figure 1 A schematic diagram of the overall structure of a linear composite insulating cross arm disclosed in an embodiment;

[0031] Figure 2 It is a front view of the quick-press wrench disclosed in the embodiment;

[0032] Figure 3 A cross-sectional view of a quick-press wrench disclosed in an embodiment;

[0033] Figure 4 It is a front view of the quick-pressing cover plate disclosed in the embodiment;

[0034] Figure 5 A top view of a quick-press cover plate disclosed in an embodiment;

[0035] Figure 6 It is a front view of the quick-press connecting rod disclosed in the embodiment;

[0036] Figure 7 It is a cross-sectional view of the cross arm body structure disclosed in the embodiment;

[0037] Figure 8 It is a front view of the quick-press body disclosed in the embodiment;

[0038] Fig. 9 It is a top view of the quick-press body disclosed in the embodiment.

[0039] Among them: 1. Quick-press wrench; 1-11. Cam; 1-12. Pin shaft hole; 1-13. Straight groove; 1-14. Threaded hole; 2. Connecting pin shaft; 3. Quick-press cover plate; 3-1. Limiting protrusion; 3-2. Open groove; 4. Quick-press connecting rod; 5. Nut; 6. Buffer pad; 7. Cross arm body; 7-1. Quick-press body; 7-2. Insulating umbrella skirt; 7-3. Insulating core rod; 7-4. Press tube; 7-11. Space for accommodating wires; 7-12. Pin shaft hole; 7-13. Construction hole; 7-14. Straight groove; 7-15. Threaded hole; 8. Closed pin; 9. Pin shaft. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and should not be understood as limitations on the present invention.

[0044] In the present invention, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. Relevant scientific research or technical personnel in this field can determine the specific meanings of the above terms in the present invention according to specific circumstances, and they should not be understood as limiting the present invention.

[0045] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0046] Example 1

[0047] In this embodiment, a linear composite insulating cross arm is disclosed, such as Figure 1-Figure 9 As shown, it includes a cross arm body 7, and a wire clamp is provided at one end of the cross arm body;

[0048] The wire clamp includes a quick-pressing body 7-1, a quick-pressing cover plate 3, a quick-pressing connecting rod 4 and a quick-pressing wrench 1;

[0049] A space 7-11 for accommodating the wire is provided on the quick press body 7-1; the quick press body 7-1 is connected to the cross arm body 7; the first end of the quick press body 7-1 is hinged to the quick press cover plate 3, and the quick press cover plate 3 can be rotated to be buckled on the space for accommodating the wire; the second end of the quick press body 7-2 is hinged to one end of the quick press connecting rod 4; the other end of the quick press connecting rod 4 is hinged to the quick press wrench 1; when the quick press cover plate 3 is buckled on the space for accommodating the wire, the quick press connecting rod 4 can be rotated to pass through the quick press cover plate 3; when the quick press cover plate 3 is buckled on the space for accommodating the wire, and the quick press connecting rod 4 passes through the quick press cover plate 3, the quick press wrench 1 can be rotated to be buckled on the quick press cover plate 3, and the quick press cover plate 3 and the quick press body 7-1 are locked.

[0050] like Figure 8 , Fig. 9 As shown, the first end of the quick pressing body 7-1 is provided with a pin hole 7-12, the second end of the quick pressing body 7-1 is provided with a straight groove 7-14, and a threaded hole 7-15; the quick pressing body 7-1 is hinged with the quick pressing cover plate 3 through the pin hole 7-12. The quick pressing cover plate 3 can rotate around the axis of the pin hole 7-12.

[0051] In this embodiment, a limit block is further provided at the second end of the quick pressing body 7 - 1 , and the limit block provides a limit for the rotation of the quick pressing cover plate 3 to prevent the quick pressing cover plate 3 from excessively rotating and damaging the clamped wire.

[0052] In this embodiment, the side of the quick press body 7-1 facing the space 7-11 for accommodating the wire is the inner surface of the quick press body 7-1. The inner surface of the quick press body 7-1 is an arc surface for fixing the wire.

[0053] In order to prevent damage to the clamped wire, this embodiment also provides a buffer pad 6 on the quick press body 7-1 and the quick press cover plate 3. When the wire is clamped, the buffer pad 6 provides a buffer for the clamping force to prevent the quick press cover plate 3 and the quick press body 7-1 from being excessively clamped and causing damage to the wire.

[0054] Preferably, the buffer pad 6 can be made of rubber tiles.

[0055] A construction hole 7-13 is provided on the quick-press body 7-1, through which the overall weight of the wire clamp is reduced, and construction operations are facilitated. Furthermore, through the construction hole 7-13, the cross arm disclosed in this embodiment can be hung and stored.

[0056] The first end of the quick-pressing cover plate 3 of the present embodiment is hinged to the quick-pressing body 7 - 1 ; the second end of the quick-pressing cover plate 3 defines a passage for the quick-pressing connecting rod 4 to pass through.

[0057] Preferably, an opening groove 3 - 2 is provided at the second end of the quick-pressing cover plate 3 to form a passage for the quick-pressing connecting rod 4 to pass through.

[0058] When the quick-press connecting rod 7 rotates, it can enter the passage or leave the passage.

[0059] like Figure 4 , Figure 5 As shown, a limiting protrusion 3-1 is provided at one end of the quick-press cover plate 3 for the quick-press connecting rod 4 to pass through;

[0060] After the quick-pressing connecting rod 4 passes through the quick-pressing cover plate 3, the end of the quick-pressing wrench 1 hinged to the quick-pressing connecting rod 4 contacts the limiting protrusion 3-1; after the quick-pressing wrench 1 is rotated and fastened to the quick-pressing cover plate 3, the limiting protrusion 3-1 limits the end of the quick-pressing wrench 1 hinged to the quick-pressing connecting rod 4 to prevent the quick-pressing cover plate 3 from opening.

[0061] The inner surface of the quick-pressing cover plate 3 faces the space for accommodating the wires; the outer surface of the quick-pressing cover plate 3 is in an arc shape; the arc-shaped outer surface of the quick-pressing cover plate 3 is transitionally connected to the limiting protrusion 3-1.

[0062] During the process of rotating the quick press wrench 1 to snap onto the quick press cover 3, one end of the quick press wrench 1 hinged to the quick press connecting rod 4 moves from the outer surface of the quick press cover 3 toward the direction of the limiting protrusion 3-1; during the process of rotating the quick press wrench 1 to unlock the quick press cover 3, one end of the quick press wrench 1 hinged to the quick press connecting rod 4 moves along the limiting protrusion 3-1 toward the direction close to the outer surface of the quick press cover 3.

[0063] like Figure 6 As shown, the quick-press connecting rod 4 adopts a straight rod, and pin holes are respectively set at both ends of the straight rod; one end of the quick-press connecting rod 4 is inserted into the straight groove 7-14, and is connected to the quick-pressing body 7-1 after passing through the pin hole of this section through the first pin shaft, so as to realize the hinge connection between the quick-pressing connecting rod 4 and the quick-pressing body 7-1; when hinged, the pin shaft passes through the pin hole, and then is threadedly connected with the threaded hole 7-15, and finally fixed by the nut 5; the quick-pressing connecting rod 4 can rotate around the axis of the pin shaft.

[0064] like Figure 2 , Figure 3 As shown, the quick-press wrench 1 includes a wrench body and a cam 1-11; one end of the wrench body is connected to the cam 1-11; the cam 1-11 is hinged to the quick-press connecting rod 4; and the wrench body is in an arc shape.

[0065] In this embodiment, a straight groove 1-13 is provided on the cam 1-11, and one end of the quick-press connecting rod 4 extends into the straight groove 1-13, and pin holes 1-12 are provided on both end faces of the straight groove 1-13; a threaded hole 1-14 is also provided on one end face of the cam 1-11, and the threaded hole 1-14 is coaxial with and connected to the pin hole 1-12; the quick-press connecting rod 4 is hinged to the quick-pressing wrench 1 by passing the connecting pin 2 through the pin hole 1-12 of the cam 1-11 and the pin hole at one end of the quick-pressing connecting rod 4, and threadedly connected with the threaded hole 1-14. After the quick-pressing connecting rod 4 passes through the quick-pressing cover plate 3, when the quick-pressing wrench 1 is rotated, the cam surface of the cam 1-11 contacts the outer surface of the quick-pressing cover plate 3 and the limiting protrusion 3-1, thereby ensuring the smoothness of the rotation of the quick-pressing wrench 1.

[0066] The main body of the wrench adopts an arc shape, which is matched with the outer surface of the quick-pressing cover plate 3, so as to ensure the stability of locking the quick-pressing cover plate 3 when the quick-pressing wrench is buckled on the quick-pressing cover plate 3.

[0067] like Figure 7 As shown, the cross arm body 7 includes an insulating core rod 7-3, which is respectively connected to the quick-press body and the crimping tube 7-4; an insulating shed 7-2 is sleeved on the outside of the insulating core rod 7-3; and the crimping tube 7-4 is used to connect to the clamp of the cement pole.

[0068] Preferably, the clamp can be connected to one linear composite insulating crossarm or two linear composite insulating crossarms; when the clamp is connected to two linear composite insulating crossarms, the two linear composite insulating crossarms are located on both sides of the clamp; so that the linear composite insulating crossarm disclosed in this embodiment can be installed on one or both sides of the pole at will, meet various wire arrangement forms, and reduce space requirements.

[0069] A pin hole is arranged on the compression tube 7-4; the compression tube 7-4 is connected with the clamp through the pin hole.

[0070] The quick-pressing body, quick-pressing cover plate, quick-pressing wrench and quick-pressing connecting rod disclosed in this embodiment can be made of composite materials, steel, aluminum alloy and the like.

[0071] The linear composite insulating cross arm disclosed in this embodiment, when in use, is connected to the clamp of the cement pole by a pin shaft 9 passing through the pin hole on the crimping tube 7 - 4 , and the pin shaft 9 is locked by a closed pin 8 .

[0072] Loosen the quick-pressing cover plate and the quick-pressing body, open the quick-pressing cover plate, open the space for accommodating the wire, and place the insulated wire in the space for accommodating the wire; rotate the quick-pressing cover plate until the quick-pressing cover plate is buckled on the insulated wire; operate the quick-pressing wrench to rotate the quick-pressing connecting rod to pass through the quick-pressing cover plate; rotate the quick-pressing wrench to buckle the quick-pressing wrench on the quick-pressing cover plate, lock the quick-pressing cover plate and the quick-pressing body, and achieve clamping of the insulated wire. The operation is simple and convenient, and no external tools are required. It has the characteristics of simple structure and quick installation, shortening the installation time and improving work efficiency. It adopts a cam structure and a lever principle, has a small installation tightening force, is convenient for manual operation, and adopts a buffer pad to reduce mechanical damage to the insulated wire.

[0073] When the wire clamp needs to be loosened from the insulated wire, rotate the quick-press wrench and the quick-press connecting rod in reverse to loosen the quick-press cover from the quick-press body; when the quick-press connecting rod is separated from the quick-press cover, rotate the quick-press cover in reverse to open it and take out the insulated wire.

[0074] Example 2

[0075] In this embodiment, a method for using a linear composite insulating crossarm disclosed in Embodiment 1 is disclosed, including:

[0076] Rotate the quick-pressing cover until it fits into the space accommodating the wires;

[0077] Operate the quick-press wrench to rotate the quick-press connecting rod until it passes through the quick-press cover plate;

[0078] Rotate the quick-press wrench to make it buckle on the quick-press cover plate, and lock the quick-press cover plate and the quick-press body.

[0079] When it is necessary to unlock the quick-press cover plate from the quick-press body, rotate the quick-press wrench and the quick-press connecting rod in the opposite direction to loosen the quick-press cover plate from the quick-press body;

[0080] When the quick-pressing connecting rod is disengaged from the quick-pressing cover plate, the quick-pressing cover plate is rotated in the reverse direction to open the quick-pressing cover plate.

[0081] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A linear composite insulating cross arm, characterized in that: It comprises a cross arm body, and a wire clamp is arranged at one end of the cross arm body; The wire clamp includes a quick-press body, a quick-press cover plate, a quick-press connecting rod and a quick-press wrench; A space for accommodating the wire is provided on the quick-pressing body; the quick-pressing body is connected to the cross-arm body; the first end of the quick-pressing body is hinged to the quick-pressing cover plate, and the quick-pressing cover plate can be rotated to be buckled on the space for accommodating the wire; the second end of the quick-pressing body is hinged to one end of the quick-pressing connecting rod; the other end of the quick-pressing connecting rod is hinged to the quick-pressing wrench; when the quick-pressing cover plate is buckled on the space for accommodating the wire, the quick-pressing connecting rod can be rotated to pass through the quick-pressing cover plate; when the quick-pressing cover plate is buckled on the space for accommodating the wire and the quick-pressing connecting rod passes through the quick-pressing cover plate, the quick-pressing wrench can be rotated to be buckled on the quick-pressing cover plate to lock the quick-pressing cover plate and the quick-pressing body.

2. A linear composite insulating cross arm as claimed in claim 1, characterized in that: Buffer pads are arranged on the quick pressing body and the quick pressing cover plate.

3. A linear composite insulating cross arm as claimed in claim 1, characterized in that: A limiting protrusion is provided at one end of the quick-pressing cover plate for the quick-pressing connecting rod to pass through; After the quick-pressing connecting rod passes through the quick-pressing cover plate, the end of the quick-pressing wrench hinged to the quick-pressing connecting rod contacts the limiting protrusion; after the quick-pressing wrench is rotated and buckled on the quick-pressing cover plate, the limiting protrusion limits the end of the quick-pressing wrench hinged to the quick-pressing connecting rod to prevent the quick-pressing cover plate from opening.

4. A linear composite insulating cross arm as claimed in claim 3, characterized in that: The inner surface of the quick-press cover plate faces the space for accommodating the wires; The outer surface of the quick-pressing cover plate is in an arc shape; the arc-shaped outer surface of the quick-pressing cover plate is transitionally connected with the limiting protrusion.

5. A linear composite insulating cross arm as claimed in claim 1, characterized in that: A limit block is arranged at the second end of the quick pressing body, and the limit block provides a limit for the rotation of the quick pressing cover plate.

6. A linear composite insulating cross arm as claimed in claim 1, characterized in that: The quick-press wrench comprises a wrench body and a cam; one end of the wrench body is connected to the cam; the cam is hinged to the quick-press connecting rod; and the wrench body is in an arc shape.

7. A linear composite insulating cross arm as claimed in claim 1, characterized in that: The cross arm body comprises an insulating core rod, which is respectively connected with the quick-press body and the compression tube; an insulating shed is sleeved on the outside of the insulating core rod; and the compression tube is used to be connected with the clamp of the cement pole.

8. A linear composite insulating cross arm as claimed in claim 7, characterized in that: A pin hole is provided on the crimping tube; The compression tube is connected to the clamp through the pin hole.

9. A method for using a linear composite insulating crossarm according to any one of claims 1 to 8, characterized in that: include: Rotate the quick-pressing cover until it fits into the space accommodating the wires; Operate the quick-press wrench to rotate the quick-press connecting rod until it passes through the quick-press cover plate; Rotate the quick-press wrench to make it buckle on the quick-press cover plate, and lock the quick-press cover plate and the quick-press body.

10. The method for using the linear composite insulating crossarm according to claim 9, characterized in that: Rotate the quick-press wrench and quick-press connecting rod in opposite directions to loosen the quick-press cover and the quick-press body; When the quick-pressing connecting rod is disengaged from the quick-pressing cover plate, the quick-pressing cover plate is rotated in the reverse direction to open the quick-pressing cover plate.

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