Telescopic cross arm insulator integrated shielding cover

Abstract

The utility model belongs to the technical field of hot-line work application, and particularly discloses a telescopic cross arm insulator integrated shielding cover, which comprises a fixed shielding part, a transverse U-shaped limiting groove, a fixed shielding part arc-shaped groove, a transition limiting part, a movable shielding part, a movable shielding part through groove, a movable shielding part arc-shaped groove and the like. The beneficial effects of the telescopic cross arm insulator integrated shielding cover of the utility model are that: 1, the transition limiting part and the movable shielding part through groove which are matched for use realize the relative position adjustment between the fixed shielding part and the movable shielding part so as to adapt to the full-coverage shielding of insulators on cross arms with different lengths and sizes; the use standard requirements of safe live-line construction work are met; and 2, the whole device is of a split combined structure, so that the device is convenient to assemble and use or transport after being disassembled, is convenient to operate, shield and use, improves the shielding construction efficiency, and correspondingly improves the working efficiency of hot-line work.

Description

Technical Field

[0001] The utility model belongs to the technical field of live working application, and in particular relates to a telescopic cross arm insulator integrated shielding cover, which is used for safe live maintenance work of a power grid system. Background Art

[0002] Insulators are devices installed between conductors of different potentials or between conductors and grounded components, and are able to withstand voltage and mechanical stress. Insulators are of various types and shapes. Although the structures and appearances of different types of insulators are quite different, they are all composed of two major parts: insulating parts and connecting fittings.

[0003] Insulators are a special type of insulating control that can play an important role in overhead transmission lines. Insulators should not fail due to various electromechanical stresses caused by changes in environmental and electrical load conditions, otherwise the insulators will not play a significant role and will damage the use and operating life of the entire line. In other words, insulators directly affect the safety of power equipment, which requires regular and adequate maintenance and inspection of insulators to ensure the operation of power equipment.

[0004] Bypass operation is to temporarily replace the distribution line with power supply through the transfer line, and carry out power outage maintenance on the high-voltage line and its electrical equipment that need maintenance without interrupting the power supply to users. At this time, it is necessary to install corresponding insulating shielding covers to shield the cross-arm insulators, insulate the operators from the grounding body, and achieve safe operation.

[0005] At present, the traditional insulation shielding cover usually adopts a non-retractable design structure, that is, in the actual cross-arm insulator shielding process, the shielding space is constant, and it is impossible to adjust the horizontal direction according to the length of the cross-arm used for the actual insulator installation. On the one hand, it limits the actual application environment, and on the other hand, it has the phenomenon of incomplete shielding, which causes great safety hazards to subsequent operations; at the same time, it is also necessary to purchase insulation shielding covers of different sizes (traditional), which increases economic costs. How to solve the above problems is currently in urgent need of resolution.

[0006] Therefore, based on the above problems, the utility model provides a telescopic cross-arm insulator integrated shielding cover. Utility Model Content

[0007] Purpose of the utility model: The purpose of the utility model is to provide a telescopic cross-arm insulator integrated shielding cover to solve the problems existing in the shielding process of the traditional insulating shielding cover in the background technology.

[0008] Technical solution: The utility model discloses a telescopic cross-arm insulator integrated shielding cover, comprising a fixed shielding part, and a horizontal U-shaped limit groove arranged in one side of the fixed shielding part, and an arc groove of the fixed shielding part arranged in the upper end face of the fixed shielding part and used in conjunction with the horizontal U-shaped limit groove, and a transition limit part arranged on the lower outer wall of the other side of the fixed shielding part, and a dynamic shielding part used in conjunction with the fixed shielding part through the transition limit part, and a dynamic shielding part through groove arranged in the upper part of the dynamic shielding part, and an arc groove of the dynamic shielding part arranged in the lower part of the dynamic shielding part and used in conjunction with the arc groove of the fixed shielding part.

[0009] In the technical solution of the present invention, the telescopic cross-arm insulator integrated shielding cover also includes reinforcing rib plates symmetrically arranged on the outer walls on both sides of one end of the fixed shielding portion.

[0010] In the technical solution of the present invention, the transition limit portion and the dynamic shielding portion through groove are configured as rectangular structures for use in conjunction with each other.

[0011] In the technical solution of the present invention, the arc groove of the fixed shielding part and the arc groove of the dynamic shielding part are respectively arranged as semicircular structures.

[0012] In the technical solution, the fixed shielding part, the horizontal U-shaped limiting groove, the fixed shielding part arc groove, the transition limiting part and the reinforcing rib plate are integrally formed, and the dynamic shielding part arc groove, the dynamic shielding part and the dynamic shielding part through groove are integrally formed.

[0013] Compared with the prior art, the beneficial effects of the telescopic cross-arm insulator integrated shielding cover of the utility model are: 1. The transition limit part and the dynamic shielding part groove used in conjunction with each other can realize the relative position adjustment between the fixed shielding part and the dynamic shielding part to adapt to the full coverage and shielding of insulators on cross-arms of different lengths and sizes, and meet the standard requirements for safe live construction operations; 2. The overall split combination structure is also convenient for assembly and use or transportation after disassembly. The operation of the shielding is convenient, which improves the efficiency of the shielding construction and correspondingly improves the work efficiency of live operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the main structure of the telescopic cross-arm insulator integrated shielding cover of the utility model;

[0016] Figure 2 It is a schematic diagram of the top view of the integrated shielding cover of the telescopic cross-arm insulator of the utility model;

[0017] Figure 3 It is a right view partial structural schematic diagram of the telescopic cross-arm insulator integrated shielding cover of the utility model;

[0018] Among them, the serial numbers in the figure are as follows: 10-fixed shielding part, 11-horizontal U-shaped limiting groove, 12-fixed shielding part arc groove, 13-transition limiting part, 14-dynamic shielding part arc groove, 15-dynamic shielding part, 16-dynamic shielding part through groove, 17-reinforcement rib plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Embodiment 1

[0022] like Figure 1 , Figure 2 and Figure 3The telescopic cross-arm insulator integrated shielding cover shown comprises a fixed shielding portion 10, and a horizontal U-shaped limiting groove 11 arranged in one side of the fixed shielding portion 10, and a fixed shielding portion arc groove 12 arranged in the upper end face of the fixed shielding portion 10 and used in conjunction with the horizontal U-shaped limiting groove 11, and a transition limiting portion 13 arranged on the lower outer wall of the other side of the fixed shielding portion 10, and a dynamic shielding portion 15 used in conjunction with the fixed shielding portion 10 through the transition limiting portion 13, and a dynamic shielding portion through groove 16 arranged in the upper part of the dynamic shielding portion 15, and a dynamic shielding portion arc groove 14 arranged in the lower part of the dynamic shielding portion 15 and used in conjunction with the fixed shielding portion arc groove 12;

[0023] The transition limiter 13 slides horizontally in the movable shielding portion slot 16 to control the relative spacing between the fixed shielding portion 10 and the movable shielding portion 15, so as to adapt to the shielding of insulators on cross arms of different lengths during on-site shielding operations.

[0024] Embodiment 2

[0025] On the basis of the first embodiment, the telescopic cross-arm insulator integrated shielding cover further includes a reinforcing rib plate 17 symmetrically arranged on the outer walls of both sides of one end of the fixed shielding portion 10;

[0026] Among them, the reinforcing rib plate 17 is set to an L-shaped structure, which improves the overall strength of the fixed shielding part 10 and prolongs its service life.

[0027] In addition, the transition limit portion 13 and the dynamic shielding portion slot 16 are preferably configured as rectangular structures for use in conjunction with each other; wherein the transition limit portion 13 and the dynamic shielding portion slot 16 have the same length dimensions, and the maximum length is telescopically adjustable for horizontal shielding, and the horizontal shielding adjustment is convenient.

[0028] In addition, the fixed shielding part arc groove 12 and the dynamic shielding part arc groove 14 are preferably set as semicircular structures respectively; wherein, the diameters of the fixed shielding part arc groove 12 and the dynamic shielding part arc groove 14 are the same, thereby achieving covering shielding of the cross arm.

[0029] In addition, the preferred fixed shielding part 10, the horizontal U-shaped limiting groove 11, the fixed shielding part arc groove 12, the transition limiting part 13 and the reinforcing rib plate 17 are integrally formed (insulating material), and the above design is easy to manufacture, has high strength and long service life; the dynamic shielding part arc groove 14, the dynamic shielding part 15 and the dynamic shielding part through groove 16 are integrally formed (insulating material), and the above design is easy to manufacture, has high strength and long service life.

[0030] The working principle or structural principle of the telescopic cross-arm insulator integrated shielding cover of this structure:

[0031] Conventional shielding: place the insulator in the fixed shielding part 10 and the horizontal U-shaped limiting groove 11. At this time, the arc groove 12 of the fixed shielding part and the arc groove 14 of the movable shielding part cover the cross arm.

[0032] Telescopic shielding (the length of the cross arm is greater than the overall length of the fixed shielding part 10 and the dynamic shielding part 15):

[0033] (1) Place the insulator in the fixed shielding part 10 and the horizontal U-shaped limiting groove 11. At this time, the arc groove 12 of the fixed shielding part and the arc groove 14 of the movable shielding part cover the cross arm (partially cover the cross arm);

[0034] (2) Move the dynamic shielding part 15 in a direction away from the fixed shielding part 10. At this time, the dynamic shielding part through groove 16 uses the transition limit part 13 as a sliding support point, and moves synchronously with the dynamic shielding part 15 in a direction away from the fixed shielding part 10, thus completing the telescopic adjustment (complete coverage of the cross arm).

[0035] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. Telescopic cross-arm insulator integrated shielding cover, characterized by: The invention comprises a fixed shielding part (10), a transverse U-shaped limiting groove (11) arranged in one side of the fixed shielding part (10), a fixed shielding part arc groove (12) arranged in the upper end surface of the fixed shielding part (10) and used in conjunction with the transverse U-shaped limiting groove (11), a transition limiting part (13) arranged on the lower outer wall of the other side of the fixed shielding part (10), a movable shielding part (15) used in conjunction with the fixed shielding part (10) through the transition limiting part (13), a movable shielding part through groove (16) arranged in the upper part of the movable shielding part (15), and a movable shielding part arc groove (14) arranged in the lower part of the movable shielding part (15) and used in conjunction with the fixed shielding part arc groove (12).

2. The telescopic cross-arm insulator integrated shielding cover according to claim 1, characterized in that: The telescopic cross-arm insulator integrated shielding cover also includes reinforcing rib plates (17) symmetrically arranged on the outer walls of both sides of one end of the fixed shielding portion (10).

3. The telescopic cross-arm insulator integrated shielding cover according to claim 1, characterized in that: The transition limit portion (13) and the dynamic shielding portion through groove (16) are arranged to be rectangular structures for use in conjunction with each other.

4. The telescopic cross-arm insulator integrated shielding cover according to claim 1, characterized in that: The fixed shielding portion arc groove (12) and the movable shielding portion arc groove (14) are respectively arranged in a semicircular structure.

5. The telescopic cross-arm insulator integrated shielding cover according to claim 2, characterized in that: The fixed shielding portion (10), the transverse U-shaped limiting groove (11), the fixed shielding portion arcuate groove (12), the transition limiting portion (13) and the reinforcing rib plate (17) are integrally formed, and the movable shielding portion arcuate groove (14), the movable shielding portion (15) and the movable shielding portion through groove (16) are integrally formed.

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