A cross-arm insulator assembly device that does not damage overhead lines

Abstract

The present invention relates to the field of crossarm insulator supporting equipment, and in particular to a crossarm insulator assembly that does not damage overhead lines. The assembly comprises a twistable support mechanism comprising a first clamp fixed to one end of the crossarm insulator, a twisting assembly disposed above the first clamp, and a second clamp disposed above the twisting assembly; and a balancing mechanism comprising a first transmission assembly fixed to the crossarm, and a second transmission assembly disposed above the transmission assembly. The twistable support mechanism and the balancing mechanism cooperate to prevent twisting deformation of the conductor at the end of the porcelain crossarm insulator caused by conductor slippage, while also preventing stress concentration and excessive twisting of the porcelain crossarm insulator.

Description

Technical Field

[0001] The invention relates to the field of cross-arm insulator matching equipment, in particular to a cross-arm insulator assembly device which does not damage overhead lines. Background Art

[0002] In overhead lines, insulators secure and support the conductors. Porcelain cross-arm insulators are widely used because of their superior insulation performance and the low incidence of line breakdown and discharge. However, in actual use, strong winds can cause some porcelain cross-arm insulators to slide along the line, twisting relative to the cross-arm. This twisting can cause the conductors attached to the ends of the cross-arms to twist and deform, and in severe cases, break, compromising the safety of the power supply.

[0003] Existing methods for solving the torsional deformation of the conductors at the ends of porcelain cross-arm insulators include directly reinforcing the fixings between the porcelain cross-arm insulator and the cross-arm to prevent the porcelain cross-arm insulator from twisting relative to the cross-arm. However, this will cause stress concentration on the porcelain cross-arm insulator, causing the porcelain cross-arm insulator to break, affecting line safety. If the ends of the porcelain cross-arm insulators and the fixings of the conductors are changed to rotating connections, the conductors will slide too far, driving the porcelain cross-arm insulator to cause the two conductors to touch each other, which will cause a line short circuit, also affecting line safety. Summary of the Invention

[0004] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a cross-arm insulator assembly device that does not damage overhead lines, which can solve the problem of wire sliding during the use of existing cross-arm insulators causing wire torsional deformation at the end of the porcelain cross-arm insulator, the problem of stress concentration in the cross-arm insulator caused by simply reinforcing the porcelain cross-arm insulator, and the problem of wire touching and short-circuiting caused by excessive torsion of the porcelain cross-arm insulator.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a cross-arm insulator assembly device that does not damage the overhead line, which includes a twistable support mechanism, which includes a first clamp fixed to one end of the cross-arm insulator, a twisting assembly arranged on the upper part of the first clamp, and a second clamp arranged on the upper part of the twisting assembly; a balancing mechanism, which includes a first transmission assembly fixed on the cross-arm, and a second transmission assembly arranged on the transmission assembly.

[0007] As a preferred solution of the cross-arm insulator assembly device that does not damage the overhead line of the present invention, the first clamp includes a first lower arc plate and a first upper arc plate hinged to the end of the first lower arc plate.

[0008] As a preferred solution of the cross-arm insulator assembly device that does not damage the overhead line of the present invention, the torsion assembly includes an extension rod fixed to the upper part of the first upper arc plate, and a rotating shaft rotatably arranged on the upper part of the extension rod.

[0009] As a preferred solution of the cross-arm insulator assembly device that does not damage the overhead line of the present invention, the second clamp includes a second lower arc plate fixed to the upper end of the rotating shaft, and a second upper arc plate hinged to the end of the second lower arc plate.

[0010] As a preferred solution of the cross-arm insulator combination device that does not damage the overhead line as described in the present invention, the first transmission assembly includes an extension plate symmetrically fixed on the two side walls of the cross-arm, a hinged seat fixed on the extension plate near one end of the cross-arm, a first folding plate hinged at the end of the hinged seat, a second folding plate fixed at the end of the first folding plate, an extension rod hinged at the end of the second folding plate, and a pressure plate fixed at the end of the extension rod.

[0011] As a preferred solution of the cross-arm insulator assembly device that does not damage the overhead line as described in the present invention, the pressure plate contacts the cross-arm insulator close to one end of the cross-arm, the first folding plate is inclined relative to the hinged seat in the direction away from the cross-arm insulator, the second folding plate is parallel to the axis of the cross-arm insulator, and the extension rod is perpendicular to the axis of the cross-arm insulator.

[0012] As a preferred solution of the cross-arm insulator assembly device that does not damage the overhead line as described in the present invention, the second transmission assembly includes a sliding seat fixed to the end of the extension plate away from the cross-arm, and the sliding seat is provided with a sliding cavity, a first sliding hole connected to the side of the sliding cavity away from the extension plate, and a second sliding hole connected to the bottom of the sliding seat.

[0013] As a preferred solution of the cross-arm insulator combination device that does not damage the overhead line as described in the present invention, the second transmission assembly includes a first slide slidably arranged in the sliding cavity near one end of the cross-arm insulator, a second slide slidably arranged in the sliding cavity away from the cross-arm insulator, a spring whose two ends respectively contact the first slide and the second slide, a hinged plate fixed to the side wall of the first slide and extending out of the first sliding hole, and a support plate hinged at the end of the hinged plate, the other end of the support plate being hinged on the side wall of the first folding plate near the connection between the first folding plate and the second folding plate.

[0014] As a preferred solution of the cross-arm insulator assembly device that does not damage the overhead line as described in the present invention, the second transmission assembly includes a first connecting plate fixed to the bottom of the first slide and extending out of the second sliding hole, and a second connecting plate fixed to the bottom of the second slide and extending out of the second sliding hole.

[0015] As a preferred solution of the cross-arm insulator combination device that does not damage the overhead line as described in the present invention, the second transmission assembly also includes a transmission rope fixed on the first connecting plate and the second connecting plate located on both sides of the cross-arm, and the length of the transmission rope is greater than the distance between the first connecting plate and the second connecting plate located on both sides of the cross-arm.

[0016] The beneficial effects of the present invention are as follows: the cross-arm insulator assembly device described in the present invention does not damage the overhead line. Through the cooperation between the torsionally movable support mechanism and the balancing mechanism, it can not only avoid the torsional deformation of the conductor at the end of the porcelain cross-arm insulator caused by conductor sliding, but also avoid stress concentration and excessive torsion of the porcelain cross-arm insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of a cross-arm insulator assembly that does not damage overhead lines;

[0019] Figure 2 An exploded view of the parts of the cross-arm insulator assembly that does not damage the overhead line;

[0020] Figure 3 Schematic diagram of the structure of the twistable support mechanism;

[0021] Figure 4 It is a structural diagram of the balancing mechanism;

[0022] Figure 5 It is a schematic structural diagram of the first part of the balancing mechanism;

[0023] Figure 6 is a schematic structural diagram of the second part of the balancing mechanism;

[0024] Figure 7 This is an exploded view of the parts of the second transmission assembly;

[0025] Figure 8 A top view of the balancing mechanism. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0029] Example 1

[0030] Reference Figures 1 to 7 , is the first embodiment of the present invention, which provides a cross-arm insulator assembly device that does not damage the overhead line, specifically including a twistable support mechanism 100, which includes a first clamp 101 fixed to one end of the cross-arm insulator T-1, a twisting assembly 102 arranged on the upper part of the first clamp 101, and a second clamp 103 arranged on the upper part of the twisting assembly 102; a balancing mechanism 200, which includes a first transmission assembly 201 fixed on the cross-arm T-2, and a second transmission assembly 202 arranged on the transmission assembly 201.

[0031] Furthermore, the first clamp 101 includes a first lower arc plate 101a, and a first upper arc plate 101b hinged at the end of the first lower arc plate 101a; the torsion assembly 102 includes an extension rod 102a fixed to the upper part of the first upper arc plate 101b, and a rotating shaft 102b rotatably arranged on the upper part of the extension rod 102a; the second clamp 103 includes a second lower arc plate 103a fixed to the upper end of the rotating shaft 102b, and a second upper arc plate 103b hinged at the end of the second lower arc plate 103a.

[0032] It should be noted that the first lower arc plate 101a and the first upper arc plate 101b are crescent-shaped, and threaded holes are provided at the ends of the first lower arc plate 101a and the first upper arc plate 101b. The threaded holes on the first lower arc plate 101a and the first upper arc plate 101b are connected by screws to tightly clamp the end of the crossarm insulator T-1; the second lower arc plate 103a and the second upper arc plate 103b are crescent-shaped, and threaded holes are provided at the ends of the second lower arc plate 103a and the second upper arc plate 103b. The threaded holes on the second lower arc plate 103a and the second upper arc plate 103b are connected by screws to tightly clamp the conductor; the rotating shaft 102b is connected to the extension rod 102a through a bearing, and the rotating shaft 102b and the extension rod 102a can rotate freely.

[0033] Preferably, the first transmission assembly 201 includes an extension plate 201a symmetrically fixed on the two side walls of the crossarm T-2, a hinged seat 201b fixed on the extension plate 201a near one end of the crossarm T-2, a first folding plate 201c hinged at the end of the hinged seat 201b, a second folding plate 201d fixed at the end of the first folding plate 201c, an extension plate 201e hinged at the end of the second folding plate 201d, and a pressure plate 201f fixed at the end of the extension plate 201e.

[0034] It should be noted that the angle between the first folding plate 201c and the second folding plate 201d is preferably between 140 degrees and 160 degrees. This setting can ensure that the pressure plate 201f supports the crossarm insulator T-1 while making the hinge between the first folding plate 201c and the hinge seat 201b close to the crossarm T-2, thereby ensuring the stability of the first folding plate 201c.

[0035] In this embodiment, when the conductor of the overhead line slips relative to the cross-arm insulator T-1, the conductor will cause the cross-arm insulator T-1 to twist relative to the cross-arm T-2. In this case, since the rotating shaft 102b and the extension rod 102a in the torsion assembly 102 can rotate freely, the torque at the connection between the conductor and the cross-arm insulator T-1 can be balanced by the torsion assembly 102; the setting of the torsionable support mechanism 100 avoids torsion between the conductor and the cross-arm insulator T-1, thereby reducing the risk of local fracture of the conductor.

[0036] Example 2

[0037] Reference Figures 1 to 8 , which is the second embodiment of the present invention, and is based on the previous embodiment.

[0038] Specifically, the pressure plate 201f contacts the cross-arm insulator T-1 close to one end of the cross-arm T-2, the first folding plate 201c is inclined relative to the hinge seat 201b in the direction away from the cross-arm insulator T-1, the second folding plate 201d is parallel to the axis of the cross-arm insulator T-1, and the extension plate 201e is perpendicular to the axis of the cross-arm insulator T-1.

[0039] Furthermore, the second transmission assembly 202 includes a sliding seat 202a fixed on the end of the extension plate 201a away from the cross arm T-2, and the sliding seat 202a is provided with a sliding cavity K-1, a first sliding hole K-2 connected to the side of the sliding cavity K-1 away from the extension plate 201a, and a second sliding hole K-3 connected to the bottom of the sliding seat 202a.

[0040] It should be noted that the lengths of the first sliding hole K-2 and the second sliding hole K-3 are the same. This arrangement does not hinder the sliding of the first slide plate 202b and the second slide plate 202c.

[0041] Furthermore, the second transmission assembly 202 includes a first slide 202b slidably arranged in the sliding cavity K-1 near one end of the cross-arm insulator T-1, a second slide 202c slidably arranged in the sliding cavity K-1 away from the cross-arm insulator T-1, a spring 202d whose two ends respectively contact the first slide 202b and the second slide 202c, a hinged plate 202e fixed to the side wall of the first slide 202b and extending out of the first sliding hole K-2, and a support plate 202f hinged to the end of the hinged plate 202e, and the other end of the support plate 202f is hinged to the side wall of the first folding plate 201c near the connection between the first folding plate 201c and the second folding plate 201d.

[0042] It should be noted that when the conductor of the overhead line slips relative to the crossarm insulator T-1, the conductor will cause the crossarm insulator T-1 to twist relative to the crossarm T-2. In this case, the spring 202d can squeeze the first slide 202b, so that the support plate 202f provides a certain support to the second folding plate 201d, and then increase the contact area by the pressure plate 201f, so that the crossarm insulator T-1 can balance part of the torque, so that the crossarm insulator T-1 will not twist too much relative to the crossarm T-2.

[0043] Furthermore, the second transmission assembly 202 includes a first connecting plate 202g fixed to the bottom of the first slide 202b and extending out of the second sliding hole K-3, and a second connecting plate 202h fixed to the bottom of the second slide 202c and extending out of the second sliding hole K-3.

[0044] Preferably, the second transmission assembly 202 also includes a transmission rope 202i fixed on the first connecting plate 202g and the second connecting plate 202h located on both sides of the crossarm T-2, and the length of the transmission rope 202i is greater than the distance between the first connecting plate 202g and the second connecting plate 202h located on both sides of the crossarm T-2.

[0045] In this embodiment, when the conductor of the overhead line slips relative to the cross-arm insulator T-1, the conductor will cause the cross-arm insulator T-1 to twist relative to the cross-arm T-2. In this case, since the rotating shaft 102b and the extension rod 102a in the torsion assembly 102 can rotate freely, the torque at the connection between the conductor and the cross-arm insulator T-1 can be balanced by the torsion assembly 102; the setting of the torsionable support mechanism 100 avoids torsion between the conductor and the cross-arm insulator T-1, thereby reducing the risk of local fracture of the conductor.

[0046] It should be noted that when the conductor of the overhead line slips relative to the crossarm insulator T-1, the conductor will cause the crossarm insulator T-1 to twist relative to the crossarm T-2. In this case, the spring 202d can squeeze the first slide 202b, so that the support plate 202f provides a certain support to the second folding plate 201d, and then increase the contact area by the pressure plate 201f, so that the crossarm insulator T-1 can balance part of the torque, so that the crossarm insulator T-1 will not twist too much relative to the crossarm T-2.

[0047] It should be noted that when the weather is bad and the conductor sliding distance increases, the first slide plate 202b, while being supported by the spring 202d in direct contact, can also pull the second connecting plate 202h on the other side through the transmission rope 202i, so that the spring 202d on the other side can provide tension to the first connecting plate 202g. This can enable the single-sided support plate 202f to provide greater support force to the second folding plate 201d to adapt to the greater torsion applied to the cross-arm insulator T-1.

[0048] It should also be noted that when the weather is extremely bad and the conductor sliding distance is too large, if the cross-arm insulator T-1 continues to twist, the conductors fixed on the two cross-arm insulators T-1 are at risk of contacting and conducting with each other. In this case, the first slide 202b directly compresses the spring 202d to the maximum. At this time, the first slide 202b is close to the second slide 202c, and directly provides rigid support to the second folding plate 201d through the sliding seat 202a, thereby avoiding the conductors fixed on the two cross-arm insulators T-1 from contacting and conducting with each other.

[0049] It should be understood that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A cross-arm insulator assembly device that does not damage overhead lines, characterized by: include, A twistable support mechanism (100) comprises a first clamp (101) fixed to one end of a cross-arm insulator (T-1), a twisting assembly (102) arranged on the upper portion of the first clamp (101), and a second clamp (103) arranged on the upper portion of the twisting assembly (102); A balancing mechanism (200) comprising a first transmission assembly (201) fixed on a crossarm (T-2), and a second transmission assembly (202) arranged on the transmission assembly (201); The first transmission assembly (201) comprises an extension plate (201a) symmetrically fixed on both side walls of the cross arm (T-2), a hinged seat (201b) fixed to one end of the extension plate (201a) close to the cross arm (T-2), a first folding plate (201c) hinged to the end of the hinged seat (201b), a second folding plate (201d) fixed to the end of the first folding plate (201c), an extension plate (201e) hinged to the end of the second folding plate (201d), and a pressing plate (201f) fixed to the end of the extension plate (201e); The second transmission assembly (202) comprises a sliding seat (202a) fixed to an end of the extension plate (201a) away from the cross arm (T-2), the sliding seat (202a) being provided with a sliding cavity (K-1), a first sliding hole (K-2) connected to the side of the sliding cavity (K-1) away from the extension plate (201a), and a second sliding hole (K-3) connected to the bottom of the sliding seat (202a); The second transmission assembly (202) comprises a first slide (202b) slidably arranged in the sliding cavity (K-1) near one end of the cross-arm insulator (T-1), a second slide (202c) slidably arranged in the sliding cavity (K-1) away from one end of the cross-arm insulator (T-1), a spring (202d) with two ends respectively contacting the first slide (202b) and the second slide (202c), a hinged plate (202e) fixed to the side wall of the first slide (202b) and extending out of the first sliding hole (K-2), and a support plate (202f) hinged to the end of the hinged plate (202e), the other end of the support plate (202f) being hinged to the side wall of the first folding plate (201c) near the connection between the first folding plate (201c) and the second folding plate (201d); The second transmission assembly (202) comprises a first connecting plate (202g) fixed to the bottom of the first slide plate (202b) and extending out of the second sliding hole (K-3), and a second connecting plate (202h) fixed to the bottom of the second slide plate (202c) and extending out of the second sliding hole (K-3); The second transmission assembly (202) further comprises a transmission rope (202i) fixed on a first connecting plate (202g) and a second connecting plate (202h) located on both sides of the cross arm (T-2), wherein the length of the transmission rope (202i) is greater than the distance between the first connecting plate (202g) and the second connecting plate (202h) located on both sides of the cross arm (T-2).

2. The cross-arm insulator assembly device that does not damage overhead lines according to claim 1, characterized in that: The first clamp (101) comprises a first lower arc plate (101a) and a first upper arc plate (101b) hinged to the end of the first lower arc plate (101a).

3. The cross-arm insulator assembly device that does not damage overhead lines according to claim 2, characterized in that: The twisting assembly (102) comprises an extension rod (102a) fixed to the upper portion of the first upper arc plate (101b), and a rotating shaft (102b) rotatably arranged on the upper portion of the extension rod (102a).

4. The cross-arm insulator assembly device that does not damage overhead lines according to claim 3, characterized in that: The second clamp (103) comprises a second lower arc plate (103a) fixed to the upper end of the rotating shaft (102b), and a second upper arc plate (103b) hinged to the end of the second lower arc plate (103a).

5. The cross-arm insulator assembly device that does not damage overhead lines according to claim 1, characterized in that: The pressing plate (201f) contacts one end of the cross-arm insulator (T-1) close to the cross-arm (T-2); the first folding plate (201c) is inclined relative to the hinge seat (201b) in a direction away from the cross-arm insulator (T-1); the second folding plate (201d) is parallel to the axis of the cross-arm insulator (T-1); and the extension plate (201e) is perpendicular to the axis of the cross-arm insulator (T-1).

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