CN114512936A

CN114512936A - Replacing device

Info

Publication number: CN114512936A
Application number: CN202210221658.XA
Authority: CN
Inventors: 唐光辉; 凌乐陶; 徐坤; 李鑫; 赵义南
Original assignee: Shenzhen Power Supply Bureau Co Ltd
Current assignee: Shenzhen Power Supply Bureau Co Ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-05-17

Abstract

The present invention relates to a replacement device. The device comprises a first component, a second component and a telescopic piece; the first assembly comprises a connecting piece and a supporting piece, the connecting piece is rotatably connected to the supporting piece, the connecting piece is connected to one end of the telescopic piece, a limiting wall is arranged on the supporting piece, a clamping cavity is formed between the side wall of the connecting piece and the limiting wall, and the clamping cavity is used for clamping a wire connected to the triangular yoke plate; one end of the second component is connected to the other end of the telescopic piece, and the other end of the second component is used for being connected to a triangular yoke plate close to an iron tower; when the telescopic piece contracts, the connecting piece can be close to the limiting wall, so that the connecting piece and the limiting wall clamp the lead in the clamping cavity. When the extensible member contracts, the connecting piece can be close to relative spacing wall to make the size of centre gripping cavity reduce, the connecting piece presss from both sides the wire with spacing wall tightly, replaces the triangle yoke plate atress of insulator chain and one side through extensible member and first subassembly, and then change insulator chain and/or triangle yoke plate that can be convenient, improve and change efficiency.

Description

Replacing device

Technical Field

The invention relates to the technical field of electric power tools, in particular to a replacing device.

Background

In the operation of the power equipment, the insulator string is exposed, so the insulator string is easy to be stained, the insulation performance of the stained insulator string is greatly reduced, and the stained insulator string needs to be cleaned or replaced. Among the prior art, often adopt U type ring and chain formula calabash complex mode to realize that chain formula calabash replaces insulator chain atress to realize the change of monolithic insulator and whole string of insulator, however the change of triangle yoke plate can't be realized to this kind of mode, in case when discovering that triangle yoke plate wearing and tearing appear, trouble, need change other appurtenance, change with insulator chain, triangle yoke plate, and then influenced the change efficiency of insulator chain.

Disclosure of Invention

Therefore, a replacing device is needed to solve the technical problem that when the insulator string is replaced, a replacing tool is needed to replace the triangular connecting plate, and replacing efficiency of the insulator string is affected.

A replacement device comprises a first component, a second component and a telescopic piece; the first assembly comprises a connecting piece and a supporting piece, the connecting piece is rotatably connected to the supporting piece, the connecting piece is connected to one end of the telescopic piece, a limiting wall is arranged on the supporting piece, a clamping cavity is formed between the side wall of the connecting piece and the limiting wall, and the clamping cavity is used for clamping a lead connected to the triangular yoke plate;

one end of the second component is connected to the other end of the telescopic piece, and the other end of the second component is used for being connected to a triangular yoke plate close to an iron tower;

when the telescopic piece contracts, the connecting piece can be close to the limiting wall, so that the connecting piece and the limiting wall clamp the wire in the clamping cavity.

In one embodiment, the connecting member includes a first connecting arm and a second connecting arm, one end of the first connecting arm is connected to the telescopic member, and the other end of the first connecting arm is rotatably connected to the second connecting arm, the first connecting arm is slidably connected to the supporting member, the second connecting arm is rotatably connected to the supporting member, the clamping cavity is formed between the second connecting arm and the limiting wall, and the first connecting arm can slide relative to the supporting member along with the contraction of the telescopic member to drive the second connecting arm to rotate towards the limiting wall, so as to adjust the size of the clamping cavity.

In one embodiment, the second connecting arm includes a first section and a second section which are rotatably connected, the first section is rotatably connected to the first connecting arm, and the first section is rotatably connected to the supporting member, the first section forms a triangular area with the second section, the first connecting arm and the rotatably connected position of the supporting member, respectively, and the side wall of the second section far away from the first section and the limiting wall form the clamping cavity.

In one embodiment, the limiting wall is provided with a first groove extending along the axial direction of the lead, the side wall of the second section far away from the first section is provided with a second groove corresponding to the first groove, the side walls of the first groove and the second groove form the clamping cavity, and the clamping cavity is used for limiting the lead to move along the radial direction of the lead.

In one embodiment, the supporting member includes a fixing plate, a first fixing arm and a second fixing arm, the first fixing arm and the second fixing arm are connected to the same side of the fixing plate, the first fixing arm and the second fixing arm are arranged at an interval, the first connecting arm is slidably connected to the first fixing arm, the second fixing arm is rotatably connected to the first segment, and the limiting wall is arranged on the fixing plate.

In one embodiment, a protruding block is arranged on the fixing plate, and one side of the protruding block, which is close to the first fixing arm, forms the limiting wall.

In one embodiment, the replacing device includes a fixing ring connected to the first fixing arm, a guide groove is formed between the fixing ring and the first fixing arm, and the first connecting arm is slidably connected to a groove wall of the guide groove.

In one embodiment, the second assembly comprises a first plate and a second plate, one end of the first plate is connected to the triangular yoke plate close to the iron tower, the other end of the first plate is connected to the second plate, and the other end of the telescopic piece is connected to the end, far away from the first plate, of the second plate; the included angle between the first plate and the second plate towards one side of the first assembly is smaller than 180 degrees.

In one embodiment, in the clamping state, a friction force is generated between the cavity wall of the clamping cavity and the lead, and the friction force is used for limiting the support to move relative to the lead.

In one embodiment, a clamping ring is arranged on the support member and clamped on the wire, and the clamping ring is used for limiting the support member to move relative to the wire.

Has the advantages that:

the replacement device provided by the embodiment of the invention comprises a first assembly, a second assembly and a telescopic piece; the first assembly comprises a connecting piece and a supporting piece, the connecting piece is rotatably connected to the supporting piece, the connecting piece is connected to one end of the telescopic piece, a limiting wall is arranged on the supporting piece, a clamping cavity is formed between the side wall of the connecting piece and the limiting wall, and the clamping cavity is used for clamping a wire connected to the triangular yoke plate; one end of the second component is connected to the other end of the telescopic piece, and the other end of the second component is used for being connected to a triangular yoke plate close to the iron tower; when the telescopic piece contracts, the connecting piece can be close to the limiting wall, so that the connecting piece and the limiting wall clamp the lead in the clamping cavity. The one end of extensible member is connected in first subassembly in this application, the other end of extensible member is connected in the second subassembly, the second subassembly is connected in the triangle yoke plate that is close to iron tower one side, when the extensible member contracts, the connecting piece can be close to spacing wall relatively, thereby make the size of centre gripping cavity reduce, the connecting piece presss from both sides tightly with the wire in the centre gripping cavity with spacing wall, replace insulator chain and the triangle yoke plate atress that is close to wire one side promptly through extensible member and first subassembly, make insulator chain and the triangle yoke plate that is close to wire one side relaxed, and then change insulator chain and/or triangle yoke plate that can be convenient, the efficiency of change is improved.

Drawings

FIG. 1 is a front view of a changing device provided by the present invention;

FIG. 2 is a first front view of a first component of the exchange device provided by the present invention;

FIG. 3 is a second front view of the first component of the exchange device provided by the present invention;

FIG. 4 is a front view of a support member of the changing device of the present invention;

FIG. 5 is a right side view of the support member of the exchange device provided by the present invention;

FIG. 6 is a front view of a connector in the exchange device provided by the present invention;

fig. 7 is a left side view of the connector of the exchange device provided by the present invention.

Reference numerals: 100-a first component; 110-a connector; 111-a first connecting arm; 112-a second connecting arm; 113-first section; 114-a second segment; 115-a second groove; 116-a clamping cavity; 120-a support; 121-a limiting wall; 122-a first fixed arm; 123-a second fixed arm; 124-fixing plate; 125-bumps; 126-a fixed ring; 127-a first groove; 128-a guide groove; 200-a second component; 210-a first plate; 220-a second plate; 300-a telescoping member; 410-insulator string; 420-a first triangular yoke plate; 430-second triangular yoke plate; 440-conducting wire.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, 2 and 3, fig. 1 is a front view of a replacing device provided by the present invention; FIG. 2 is a first front view of a first component of the exchange device provided by the present invention; fig. 3 is a second front view of the first assembly of the exchange device provided by the present invention. The replacement device provided by one embodiment of the invention comprises a first assembly 100, a second assembly 200 and a telescopic piece 300; the first assembly 100 comprises a connecting piece 110 and a supporting piece 120, the connecting piece 110 is rotatably connected to the supporting piece 120, the connecting piece 110 is connected to one end of the telescopic piece 300, a limiting wall 121 is arranged on the supporting piece 120, a clamping cavity 116 is formed between the side wall of the connecting piece 110 and the limiting wall 121, and the clamping cavity 116 is used for clamping a lead 440 connected to a triangular yoke plate; one end of the second component 200 is connected to the other end of the telescopic member 300, and the other end of the second component 200 is used for connecting to a triangular yoke plate close to an iron tower; when telescopic member 300 is retracted, connecting member 110 can be moved closer to position-limiting wall 121, so that connecting member 110 and position-limiting wall 121 clamp wire 440 in clamping cavity 116.

In the operation process of the power transmission line, the insulator string 410 is subjected to the influence of high voltage of current and change of natural environment for a long time, so that the insulating capability of the insulator is gradually reduced, and the operation safety of the power transmission line is seriously threatened along with aging and damage of the insulator. The existing insulator string 410 replacing mode is generally that a U-shaped ring is installed on an access hole of a triangular connecting plate at two ends of the insulator string 410, hooks of iron chains at two ends of a chain type hoist are used for connecting the U-shaped ring, when the chain type hoist is tensioned, the chain type hoist is enabled to replace insulator stress in a short time, and therefore tasks such as replacing and overhauling the insulator string 410 can be carried out. However, this method can only replace the insulator string 410, and when the triangular connecting plate is also worn, other auxiliary tools need to be replaced, thereby affecting the replacement efficiency of the insulator string 410.

Connect in first subassembly 100 through the one end of extensible member 300 in this application, the other end of extensible member 300 is connected in second subassembly 200, second subassembly 200 is connected in the triangle yoke plate that is close to iron tower one side, when extensible member 300 contracts, connecting piece 110 can be close to relatively spacing wall 121, thereby make the size of the centre gripping cavity 116 that forms between connecting piece 110's the lateral wall and the spacing wall 121 reduce, then connecting piece 110 presss from both sides the wire 440 in the centre gripping cavity 116 with spacing wall 121, replace insulator string 410 and be close to the triangle yoke plate atress of wire 440 one side through extensible member 300 and first subassembly 100 promptly, make convenient insulator string 410 of insulating and the triangle yoke plate that is close to wire 440 one side loosened, and then change insulator string 410 and/or triangle yoke plate that can, improve change efficiency.

After the telescopic member 300 stops contracting, the telescopic member 300 has a certain pulling force on the connecting member 110, so that the connecting member 110 has a movement tendency towards the limiting wall 121, and the connecting member 110 and the limiting wall 121 clamp the lead 440 more tightly, so that the replacing device can stably replace the insulator string 410 and the triangular connecting plate close to one side of the lead 440 to be stressed.

For the convenience of distinguishing, the triangular yoke plate near one side of the iron tower is defined as a first triangular yoke plate 420, and the triangular yoke plate connected with the lead 440 is defined as a second triangular yoke plate 430. It should be noted that, when the triangular connecting plate near one side of the iron tower is damaged and needs to be replaced, the second assembly 200 may be connected to the cross arm of the iron tower, and the insulator string 410, the first triangular connecting plate 420 and the second triangular connecting plate 430 are stressed by a replacement device instead of the insulator string 410, the first triangular connecting plate 420 and the second triangular connecting plate 430, so that the insulator string 410, the first triangular connecting plate 420 and the second triangular connecting plate 430 can be replaced.

With continued reference to fig. 1, in one embodiment, in the clamped state, there is a friction force between the walls of the clamping chamber and the wire 440, and the friction force is used to limit the movement of the support 120 relative to the wire 440.

Specifically, in the initial state, the wire 440 is placed in the clamping cavity 116, and the supporting member 120 can be held by hand, so that the supporting member 120 is kept still and the connecting member 110 approaches to the limiting wall 121 when the telescopic member 300 is contracted. When the clamping cavity 116 is reduced and the wire 440 is abutted between the walls of the clamping cavity 116, i.e. when the clamping cavity 116 is in the clamping state, friction exists between the walls of the clamping cavity 116 and the wire 440, and at this time, the hand can be released, and the movement of the support 120 relative to the wire 440 is limited by the friction. When gripping chamber 116 is in the gripping state, support member 120 can remain stationary with respect to wire 440 while telescoping member 300 continues to retract, and connector 110 continues to move toward stop wall 121 under the pull of telescoping member 300, resulting in further reduction in the size of gripping chamber 116. When the tension of the expansion piece 300 on the connecting piece 110 is gradually increased, the connecting piece 110 and the limiting wall 121 clamp the lead 440 more tightly, and the friction between the lead 440 and the limiting wall 121 and the connecting piece 110 is larger, so that the lead 440 is always fixed with the support 120, and the replacing device can stably replace the insulator string 410 and the triangular connecting plate close to one side of the lead 440 to bear force.

Referring still to fig. 1, in one embodiment, a snap ring is disposed on the support member 120, and the snap ring is snapped on the wire 440 and is used to limit the movement of the support member 120 relative to the wire 440.

Specifically, since the retainer ring is disposed on the support member 120, the retainer ring can clamp the wire 440, and when the telescopic member 300 is contracted, the retainer ring can limit the support member 120 to move relative to the wire 440, so that the telescopic member 300 pulls the connecting member 110 to move toward the position-limiting wall 121, thereby changing the size of the clamping cavity 116, and enabling the connecting member 110 and the position-limiting wall 121 to clamp the wire 440 in the clamping cavity 116.

Referring to fig. 2, 3, 4 and 5, fig. 4 is a front view of a support member in the replacing device according to the present invention; fig. 5 is a right side view of the support member in the exchange device provided by the present invention. In one embodiment, the connecting member 110 includes a first connecting arm 111 and a second connecting arm 112, one end of the first connecting arm 111 is connected to the telescopic member 300, and the other end is rotatably connected to the second connecting arm 112, the first connecting arm 111 is slidably connected to the supporting member 120, the second connecting arm 112 is rotatably connected to the supporting member 120, a clamping cavity 116 is formed between the second connecting arm 112 and the limiting wall 121, and the first connecting arm 111 can slide relative to the supporting member 120 along with the contraction of the telescopic member 300 to drive the second connecting arm 112 to rotate towards the limiting wall 121, so as to adjust the size of the clamping cavity 116.

Specifically, the extensible member 300 is connected to one end of the first connecting arm 111 close to the second assembly 200, when the extensible member 300 is contracted, the extensible member 300 pulls the first connecting arm 111 to slide towards the second assembly 200, because the second connecting arm 112 is rotatably connected to the first connecting arm 111, the first connecting arm 111 drives the second connecting arm 112 to rotate towards the limiting wall 121, because the supporting member 120 is kept stationary relative to the wire 440, the distance between the second connecting arm 112 and the limiting wall 121 is reduced, that is, the size of the clamping cavity 116 is reduced, so that the second connecting arm 112 and the limiting wall 121 clamp the wire 440, and therefore, the replacement device replaces the insulator 410, and the first triangular link plate 420 and the second triangular link plate 430 are stressed.

When the pulling force of the telescopic member 300 on the first connecting arm 111 is larger, the pulling force of the second connecting arm 112 towards the limiting wall 121 is larger, and the pressing force of the second connecting arm 112 and the limiting wall 121 on the lead 440 is larger, so that the replacing device stably replaces the insulator string 410, the first triangular connecting plate 420 and the second triangular connecting plate 430 to be stressed.

In other embodiments, the connecting member 110 is rotatably connected to the supporting member 120, and when the telescopic member 300 is contracted, the connecting member 110 can be rotated with respect to the supporting member 120 as a whole to enable the connecting member 110 to approach the limiting wall 121, so that the connecting member 110 and the limiting wall 121 clamp the wire 440 in the clamping cavity 116.

With continued reference to fig. 2, 3, 4, and 5, in one embodiment, the second connecting arm 112 includes a first section 113 and a second section 114 rotatably connected to each other, the first section 113 is rotatably connected to the first connecting arm 111, the first section 113 is rotatably connected to the supporting member 120, the first section 113 forms a triangular area with the second section 114, the first connecting arm 111, and the supporting member 120 at the positions of the rotatable connections, and the side wall of the second section 114 away from the first section 113 forms a clamping cavity 116 with the limiting wall 121.

Specifically, in the initial state, the side wall of the second segment 114 away from the first segment 113 faces the limiting wall 121, and when the telescopic member 300 is contracted, the first connecting arm 111 slides towards one side of the second assembly 200 relative to the supporting plate, so as to drive the first segment 113 to rotate towards one side of the limiting wall 121, and drive the second segment 114 to approach the limiting wall 121, so that the portion of the second segment 114 can abut against the wire 440 in the clamping cavity 116. Because the second segment 114 is rotatably connected to the first segment 113, in the process that the first segment 113 rotates towards the limiting wall 121, the second segment 114 can rotate relative to the first segment 113, so that the side wall of the second segment 114 close to the limiting wall 121 can be attached to the wire 440, the friction force of the second segment 114 and the limiting wall 121 on the wire 440 is further improved, and the wire 440 is clamped by the second segment 114 and the limiting wall 121 more tightly. Meanwhile, the contact area between the second section 114 and the lead 440 is increased, stress concentration is avoided, and the service life of the lead 440 is prolonged.

Furthermore, the second section 114 is triangular, and the rotational connection positions of the first section 113, the second section 114, the first connection arm 111 and the support 120 are located at three ends of the triangle, so that the volume and the weight of the second section 114 can be reduced, the flexibility of the second section 114 can be improved, and the adaptability of the device can be improved.

Referring to fig. 1, 2, 4, 5 and 7, fig. 7 is a left side view of a connector in the exchanging apparatus according to the present invention. In one embodiment, the limiting wall 121 is provided with a first groove 127 extending along the axial direction of the wire 440, the side wall of the second segment 114 away from the first segment 113 is provided with a second groove 115 corresponding to the first groove 127, the side walls of the first groove 127 and the second groove 115 form a clamping cavity 116, and the clamping cavity 116 is used for limiting the wire 440 to move along the radial direction of the wire 440.

Specifically, when the lead 440 is located in the clamping cavity 116, a portion of the lead 440 is received in the first groove 127, and another portion of the lead 440 is received in the second groove 115. The arrangement of the first groove 127 and the second groove 115 can limit the lead 440 to move along the radial direction of the lead 440, and the inner wall of the first groove 127 and the inner wall of the second groove 115 can clamp the lead 440 in the clamping cavity 116, so that the lead 440 is stably limited in the clamping cavity 116, and the replacing device stably replaces the insulator string 410, the first triangular connecting plate 420 and the second triangular connecting plate 430 to bear force.

Referring to fig. 2, 6 and 7, fig. 6 is a front view of a connector in the exchanging apparatus according to the present invention. In one embodiment, the supporting member 120 includes a fixing plate 124, a first fixing arm 122 and a second fixing arm 123, the first fixing arm 122 and the second fixing arm 123 are connected to the same side of the fixing plate 124, the first fixing arm 122 and the second fixing arm 123 are disposed at intervals, the first connecting arm 111 is slidably connected to the first fixing arm 122, the second fixing arm 123 is rotatably connected to the first segment 113, and the limiting wall 121 is disposed on the fixing plate 124.

Specifically, when the telescopic member 300 is contracted, the telescopic member 300 drives the first connecting arm 111 to slide, so that the first segment 113 rotates towards the fixing plate 124, and the second segment 114 approaches to the limiting wall 121. Because the first fixing arm 122 and the second fixing arm 123 are connected to the same side of the fixing plate 124, and the first fixing arm 122 and the second fixing arm 123 are arranged at intervals, which is equivalent to hollowing out the space between the first fixing arm 122 and the second fixing arm 123 on the basis of a whole plate, the volume of the supporting member 120 is reduced, and the weight of the device is further reduced.

Referring to fig. 5 and 6, in one embodiment, a protrusion 125 is disposed on the fixing plate 124, and a limiting wall 121 is formed on a side of the protrusion 125 close to the first fixing arm 122.

Specifically, a side of the protrusion 125 near the first fixing arm 122 forms a limiting wall 121, and the clamping cavity 116 is located between the protrusion 125 and the second section 114. The wire 440 within the gripping cavity 116 is clamped by the second section 114 moving toward the bump 125, thereby holding the wire 440 between the second section 114 and the bump 125. The protrusion 125 is disposed to reduce the weight of the supporting member 120.

Referring to fig. 3, 5 and 6, in one embodiment, the replacing device includes a fixing ring 126, the fixing ring 126 is connected to the first fixing arm 122, a guide groove 128 is formed between the fixing ring 126 and the first fixing arm 122, and the first connecting arm 111 is slidably connected to a groove wall of the guide groove 128.

Specifically, the guide groove 128 extends from the first component 100 toward the second component 200, and when the telescopic member 300 contracts and pulls the first connecting arm 111, the guide groove 128 guides the sliding of the first connecting arm 111, so that the first connecting arm 111 can stably slide relative to the supporting member 120, and thus the second connecting arm 112 is stably driven to rotate toward the limiting wall 121, and the size of the clamping cavity 116 is further adjusted, so that the wire 440 is stably clamped.

Referring to fig. 1, in one embodiment, the second assembly 200 includes a first plate 210 and a second plate 220, one end of the first plate 210 is connected to a triangular yoke plate near the iron tower, the other end is connected to the second plate 220, and the other end of the telescopic member 300 is connected to the end of the second plate 220 far from the first plate 210; the first plate 210 and the second plate 220 are at an angle of less than 180 degrees to the side facing the first assembly 100.

Specifically, since the included angle between the first plate 210 and the second plate 220 toward the first assembly 100 is less than 180 degrees, when the first plate 210 is installed on the first triangular connecting plate 420, the second assembly 200 can avoid the joint between the first triangular connecting plate 420 and the insulator string 410, thereby reducing the interference on replacing the insulator string 410. Meanwhile, compared with a mode that the included angle between the first plate 210 and the second plate 220 is 180 degrees, the length of the telescopic member 300 can be reduced, and the cost is saved.

Referring to fig. 1, in one embodiment, the lead 440 is connected to the second triangular yoke plate 430 through a strain tube. Because the second section 114 and the bump 125 can clamp the lead 440, the replacing device can replace the insulator string 410, the first triangular yoke plate 420 and the second triangular yoke plate 430 to bear force, the tension tube is in a relaxed state at the moment, and the tension tube can be replaced by the replacing device, so that the adaptability of the replacing device is improved.

Referring to fig. 1, in one embodiment, the extensible member 300 is a chain block. Specifically, because extensible member 300 is chain block to the pulling force to first connecting arm 111 of regulation that can be convenient, make that second section 114 and lug 125 can be stable press from both sides tight wire 440, and then be convenient for change insulator string 410, triangle yoke plate and strain insulator tube.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. A replacement device comprising a first component, a second component and a telescoping member; the first assembly comprises a connecting piece and a supporting piece, the connecting piece is rotatably connected to the supporting piece, the connecting piece is connected to one end of the telescopic piece, a limiting wall is arranged on the supporting piece, a clamping cavity is formed between the side wall of the connecting piece and the limiting wall, and the clamping cavity is used for clamping a lead connected to the triangular yoke plate;

one end of the second assembly is connected to the other end of the telescopic piece, and the other end of the second assembly is used for being connected to a triangular yoke plate close to an iron tower;

2. The replacing device according to claim 1, wherein the connecting member comprises a first connecting arm and a second connecting arm, one end of the first connecting arm is connected to the telescopic member, the other end of the first connecting arm is rotatably connected to the second connecting arm, the first connecting arm is slidably connected to the supporting member, the second connecting arm is rotatably connected to the supporting member, the clamping cavity is formed between the second connecting arm and a limiting wall, and the first connecting arm can slide relative to the supporting member along with the contraction of the telescopic member to drive the second connecting arm to rotate towards the limiting wall, so as to adjust the size of the clamping cavity.

3. The replacing device according to claim 2, wherein the second connecting arm comprises a first section and a second section which are rotatably connected, the first section is rotatably connected to the first connecting arm and is rotatably connected to the supporting member, the first section forms a triangular area with the second section, the first connecting arm and the rotatably connected position of the supporting member, and the side wall of the second section far away from the first section and the limiting wall form the clamping cavity.

4. The replacing device according to claim 3, wherein the limiting wall is provided with a first groove extending along the axial direction of the lead, the side wall of the second section far away from the first section is provided with a second groove corresponding to the first groove, the side walls of the first groove and the second groove form the clamping cavity, and the clamping cavity is used for limiting the lead to move along the radial direction of the lead.

5. The replacing device according to claim 3, wherein the supporting member comprises a fixing plate, a first fixing arm and a second fixing arm, the first fixing arm and the second fixing arm are connected to the same side of the fixing plate, the first fixing arm and the second fixing arm are arranged at intervals, the first connecting arm is slidably connected to the first fixing arm, the second fixing arm is rotatably connected to the first segment, and the limiting wall is arranged on the fixing plate.

6. The replacing device as claimed in claim 5, wherein the fixing plate is provided with a protrusion, and one side of the protrusion near the first fixing arm forms the limiting wall.

7. The changing device as claimed in claim 5, wherein the changing device includes a fixing ring connected to the first fixing arm, a guide groove is formed between the fixing ring and the first fixing arm, and the first connecting arm is slidably connected to a groove wall of the guide groove.

8. The replacement device according to claim 1, wherein the second assembly comprises a first plate and a second plate, one end of the first plate is connected to the triangular yoke plate close to the iron tower, the other end of the first plate is connected to the second plate, and the other end of the telescopic member is connected to the end of the second plate far from the first plate; the included angle between the first plate and the second plate towards one side of the first assembly is smaller than 180 degrees.

9. The replacement device according to claim 1, wherein in the clamped state, a friction force is provided between a wall of the clamping cavity and the wire, the friction force being configured to limit movement of the support relative to the wire.

10. The replacing device as claimed in claim 1, wherein the supporting member is provided with a snap ring, the snap ring is snapped on the wire, and the snap ring is used for limiting the movement of the supporting member relative to the wire.