Channel steel cross arm insulator screw rod force - adding replacement device

Abstract

The present application discloses a device for replacing a channel steel cross arm insulator by applying force to a screw rod, comprising: a channel steel cross arm clamp and a puller; the channel steel cross arm clamp includes a fixed seat and a hook; a holding portion that is in movable contact with and abuts against the top of the channel steel cross arm is provided on the fixed seat; the first end of the hook is hinged to the first end of the fixed seat near the holding portion, and a hooked portion that cooperates with the first side plate portion of the channel steel cross arm is provided at the second end of the hook; the second end on the fixed seat extends out of the channel steel cross arm in a direction away from the hook; the puller includes a screw rod assembly and a pull rod; the screw rod assembly includes a screw rod, a nut and a handle; the first end of the screw rod penetrates upward through the fixed seat and extends out of the channel steel cross arm, and the second end is connected to the first end of the pull rod; the pull rod is connected to a wire through a connecting member; the nut is rotatably sleeved on the shaft section of the screw rod that extends out of the channel steel cross arm and is in threaded cooperation with the screw rod, and the bottom of the nut is in contact with and abuts against the top of the fixed seat; the handle is connected to the nut and is used to drive the nut to rotate. The installation and disassembly are simple and the use is convenient.

Description

Technical Field

[0001] This application relates to the technical field of electric power operations, and particularly to a device for replacing the insulator screw rod of a channel steel cross arm with increased force. Background Art

[0002] The replacement operation of straight insulators frequently occurs in the daily maintenance of transmission lines, and a corresponding replacement device is required to complete the replacement of insulators. The existing insulator replacement devices mainly include a fixed clamp on the fixed cross arm and a pulling device installed on the fixed clamp. During the replacement operation, the fixed clamp is first installed on the cross arm of the pole tower, and then the pulling device installed on the fixed clamp is used to lift the wire, pulling it upward to support the insulator string, facilitating the replacement of the insulator string between the cross arm and the wire. However, the existing replacement device for channel steel cross arms is cumbersome to install and disassemble, inconvenient to use, and affects the insulator replacement efficiency. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a device for replacing the insulator screw rod of a channel steel cross arm with increased force, which is simple to install and disassemble, convenient to use, and ensures the insulator replacement efficiency.

[0004] To achieve the above technical purpose, this application provides a device for replacing the insulator screw rod of a channel steel cross arm with increased force, including: a channel steel cross arm clamp and a puller;

[0005] The channel steel cross arm clamp includes a fixed seat and a hook;

[0006] A holding portion that is in movable contact with and abuts against the top of the channel steel cross arm is provided on the fixed seat;

[0007] The first end of the hook is hinged to the first end of the fixed seat near the holding portion, and a hook portion is provided at the second end of the hook;

[0008] A groove for the first side plate portion of the channel steel cross arm to be movably inserted into is provided in the hook portion;

[0009] The bottom of the groove is in contact with and abuts against the bottom of the first side plate portion;

[0010] The second end of the fixed seat extends out of the channel steel cross arm in a direction away from the hook;

[0011] The puller includes a screw rod assembly and a pull rod;

[0012] The screw rod assembly includes a screw rod, a nut, and a handle;

[0013] The first end of the screw rod penetrates upward through the fixed seat and extends out of the channel steel cross arm, and the second end is connected to the first end of the pull rod;

[0014] The pull rod is connected to the wire through a connecting member;

[0015] The nut is rotatably sleeved on the shaft section of the screw rod protruding from the channel steel cross arm, and is in threaded cooperation with the screw rod. The bottom of the nut contacts and abuts against the top of the fixed seat;

[0016] The handle is connected to the nut and is used to drive the nut to rotate.

[0017] Furthermore, a connecting shaft is further included;

[0018] A through hole for the first end of the screw rod to pass through movably is provided in the connecting shaft, and two limiting shafts distributed along the same straight line are symmetrically arranged on the outer peripheral wall of the connecting shaft;

[0019] A clamping groove for the limiting shaft to be movably clamped into is provided on the fixed seat;

[0020] An axial bearing is fixedly installed in the through hole;

[0021] The nut is installed on the connecting shaft, and the bottom of the nut is connected to the axial bearing.

[0022] Furthermore, a gear that rotates synchronously with the nut is sleeved on the nut;

[0023] The first end portion of the handle is sleeved on the gear, and a clamping block is rotatably arranged on one side of the gear inside the first end portion of the handle;

[0024] A tooth clamping portion that is movably clamped into the tooth groove of the gear is provided on the clamping block;

[0025] The clamping block is connected with a lever rod extending out of the handle.

[0026] Furthermore, the connecting member includes a rod sleeve portion and a locking portion;

[0027] The rod sleeve portion is sleeved on the pull rod;

[0028] The locking portion is connected to the rod sleeve portion and is provided with a locking hole for the wire to pass through movably.

[0029] Furthermore, a locking pin is detachably connected between the locking portion and the rod sleeve portion;

[0030] The locking hole is formed by enclosing the locking pin, the locking portion and the rod sleeve portion.

[0031] Furthermore, a plurality of first fixing holes penetrating the pull rod are arranged at intervals along the length direction of the pull rod;

[0032] The rod sleeve portion is provided with second fixing holes penetrating the rod sleeve portion and matching with the first fixing holes.

[0033] Further, a first installation groove for the first end of the hook claw to movably extend into is formed in the first end of the fixed seat;

[0034] A first hinge hole penetrating through the first installation groove is formed in the fixed seat;

[0035] A second hinge hole that is matched with the first hinge hole through a pin shaft is formed in the first end of the hook claw.

[0036] Further, a second installation groove for avoiding the screw rod is formed in the second end of the fixed seat;

[0037] The connecting shaft is installed on the second installation groove.

[0038] Further, a first reinforcing rib plate is formed between the abutting portion and the hook claw for avoiding the upper edge of the top of the channel steel cross arm arranged along the length direction of the channel steel cross arm, and the first side walls of the abutting portion and the hook claw facing each other are in contact and fit with the first reinforcing rib plate.

[0039] Further, a first limiting member is further included;

[0040] The first limiting member includes a first connecting portion and a first limiting portion;

[0041] The first end of the first connecting portion is connected to the fixed seat, and the second end of the first connecting portion is vertically connected to the first limiting portion;

[0042] A limiting space for avoiding the second reinforcing rib plate vertically connected to both side walls of the first reinforcing rib plate is formed between the second limiting portion and the fixed seat.

[0043] It can be seen from the above technical solutions that in this application, a channel steel cross arm clamp is formed by arranging a fixed seat and a hook claw hinged to the fixed seat. The fixed seat is provided with an abutting portion that movably contacts and abuts against the top of the channel steel cross arm, and the hook claw is provided with a hooked portion that is hooked and matched with the first side plate portion of the channel steel cross arm; meanwhile, the second end of the fixed seat extends out of the channel steel cross arm in a direction away from the hook claw, which is convenient for installing a puller; the abutting portion of the fixed seat can serve as a support point to support the fixed seat, and the hook claw can provide a force for balancing the force of the fixed seat exerted by the puller, so that the fixed seat can be stably installed on the channel steel cross arm and provide stable support for the puller. Through the structural design of this channel steel cross arm clamp, the overall installation and disassembly are simple. At the same time, it is paired with a puller composed of a screw rod, a nut, and a handle. By driving the nut to rotate through the handle to achieve the screw thread fit between the nut and the screw rod, the screw rod can have a relative displacement in the vertical direction, and then the wire can be pulled upward. The overall use is convenient, ensuring the replacement efficiency of the insulator. Description of the Drawings

[0044] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0045] Figure 1 It is a schematic structural diagram of the use of the channel steel cross-arm insulator screw rod force-increasing replacement device provided in the present application;

[0046] Figure 2 For Figure 1 the enlarged schematic diagram of position A in

[0047] Figure 3 It is a partial schematic diagram of the channel steel cross-arm insulator screw rod force-increasing replacement device provided in the present application;

[0048] Figure 4 For Figure 1 the enlarged schematic diagram of position B in

[0049] Figure 5 It is a schematic structural diagram of the installation of the channel steel cross-arm clamp of the channel steel cross-arm insulator screw rod force-increasing replacement device provided in the present application;

[0050] Figure 6 For Figure 5 the exploded schematic diagram of

[0051] Figure 7 It is a schematic structural diagram of the channel steel cross-arm clamp of the channel steel cross-arm insulator screw rod force-increasing replacement device provided in the present application without the first limiting member and the second limiting member;

[0052] In the figure: 1. Fixed seat; 11. Abutting part; 12. First installation groove; 121. First hinge hole; 13. Second installation groove; 131. Card slot; 14. Hollow hole; 15. First limiting member; 151. First connecting part; 152. First limiting part; 16. Second limiting member; 161. Second connecting part; 162. Second limiting part; 2. Hook claw; 21. Hook part; 22. Second hinge hole; 3. Channel steel cross-arm; 31. First side plate part; 32. Second side plate part; 311. First reinforcing rib plate; 312. Second reinforcing rib plate; 41. First magnetic attraction member; 42. Second magnetic attraction member; 5. Pin shaft; 61. Screw rod; 62. Pull rod; 621. First fixing hole; 63. Nut; 631. Gear; 632. Locking pin; 64. Handle; 641. Stopping block; 642. Poking rod; 65. Connecting member; 651. Rod sleeve part; 6511. Second fixing hole; 652. Locking part; 66. Connecting shaft; 661. Limiting shaft; 7. Conducting wire; 8. Insulator. Detailed implementation manners

[0053] The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the embodiments of the present application.

[0054] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application 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 should not be construed as a limitation to the embodiments of the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0055] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a replaceable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0056] The embodiments of the present application disclose a device for replacing a channel steel cross arm insulator with screw rod force application.

[0057] Please refer to Figure 1 , an embodiment of the device for replacing a channel steel cross arm insulator with screw rod force application provided in the embodiments of the present application includes:

[0058] Channel steel cross arm clamp and puller; the channel steel cross arm clamp includes a fixed seat 1 and a hook 2; the fixed seat 1 is provided with a holding part 11 that is in movable contact with and abuts against the top of the channel steel cross arm 3; the first end of the hook 2 is hinged to the first end of the fixed seat 1 near the holding part 11, and the second end of the hook 2 is provided with a hooked part 21; the hooked part 21 is provided with a groove for the first side plate part 31 of the channel steel cross arm 3 to be movably inserted; the bottom of the groove is in contact with and abuts against the bottom of the first side plate part 31; the second end on the fixed seat 1 extends out of the channel steel cross arm 3 in a direction away from the hook 2; the puller includes a screw rod assembly and a pull rod 62; the screw rod assembly includes a screw rod 61, a nut 63 and a handle 64; the first end of the screw rod 61 penetrates upward through the fixed seat 1 and extends out of the channel steel cross arm 3, and the second end is connected to the first end of the pull rod 62; the pull rod 62 is connected to the wire 7 through a connecting piece 65; the nut 63 is rotatably sleeved on the shaft section of the screw rod 61 that extends out of the channel steel cross arm 3 and is in threaded cooperation with the screw rod 61, and the bottom of the nut 63 is in contact with and abuts against the top of the fixed seat 1; the handle 64 is connected to the nut 63 and is used to drive the nut 63 to rotate.

[0059] Specifically, in this embodiment, the holding part 11 and the fixed seat 1 are integrally formed, and the hooked part 21 and the hook 2 are integrally formed, which is more convenient for processing and manufacturing; the structure of the fixed seat 11 can be as Figure 1 shown, in the shape of a triangular-like block. Of course, it is not limited to such a structural design. Those skilled in the art can make appropriate changes based on this, and no specific limitations are made. The second end on the fixed seat 1 is set to extend out of the channel steel cross arm 3 in a direction away from the hook 2, that is, the second end on the fixed seat 11 extends out of the channel steel cross arm 3 along the first side plate part 31 of the channel steel cross arm 3 towards the second side plate part 32, which is convenient for providing an installation position for the puller. When installing and fixing, the hook 2 can be rotated first to make the hooked part 21 cooperate with the first side plate part 31 of the channel steel cross arm 3, and then the holding part 11 is made to be in contact with and abut against the top of the channel steel cross arm 33 to achieve fixation, and no specific limitations are made. In addition, the second end of the screw rod 61 can be provided with a Figure 1The U-shaped connector shown is convenient for connecting to the first end of the pulling rod 62. The first end of the screw rod 61 passes upward through the fixed seat 1 and then cooperates with the nut 63. The bottom of the nut 63 contacts and abuts against the top of the fixed seat 1, that is, the fixed seat 1 can be used to support the nut 63 and does not affect the rotation of the nut 63. The nut 63 can be directly rotatably connected to the fixed seat 1 through an axial bearing (not shown in the figure). After installing the channel cross-arm clamp and the puller, turn the handle 64 so that a screw-thread fit occurs between the nut 63 and the screw rod 61. Due to the limiting effect of the fixed seat 1 on the nut 63, at this time, the screw rod 61 can have an upward relative displacement, thereby driving the pulling rod 62 to move upward, and then pulling the conductor 7 upward, which is convenient for replacing the subsequent insulator 8. In this process, the position of the fixed seat 1 where the puller is installed will receive a downward acting force, and the fixed seat 1 can be fixed by the hook 2 at this time to provide a force to balance this acting force, so that the fixed seat 1 can be stably installed on the channel cross-arm 3 and provide stable support for the puller. In order to make the installation of the fixed seat 1 more stable, the contact surface between the bottom of the abutting portion 11 and the top of the channel cross-arm 33 can be designed to be larger, and specific changes can be made according to actual needs.

[0060] The above is the first embodiment of the channel cross-arm insulator screw rod force-increasing replacement device provided by this application. The following is the second embodiment of the channel cross-arm insulator screw rod force-increasing replacement device provided by this application. For details, please refer to Figures 1 to 7 。

[0061] A channel cross-arm insulator screw rod force-increasing replacement device includes: a channel cross-arm clamp and a puller; the channel cross-arm clamp includes a fixed seat 1 and a hook 2; the fixed seat 1 is provided with an abutting portion 11 that is in movable contact and abuts against the top of the channel cross-arm 3; the first end of the hook 2 is hinged to the first end of the fixed seat 1 near the abutting portion 11, and the second end of the hook 2 is provided with a hook portion 21; the hook portion 21 is provided with a groove for the first side plate portion 31 of the channel cross-arm 3 to be movably inserted; the bottom of the groove contacts and abuts against the bottom of the first side plate portion 31; the second end on the fixed seat 1 extends out of the channel cross-arm 3 in a direction away from the hook 2; the puller includes a screw rod assembly and a pulling rod 62; the screw rod assembly includes a screw rod 61, a nut 63, and a handle 64; the first end of the screw rod 61 penetrates upward through the fixed seat 1 at a position extending out of the channel cross-arm 3, and the second end is connected to the first end of the pulling rod 62; the pulling rod 62 is connected to the conductor 7 through a connecting member 65; the nut 63 is rotatably sleeved on the shaft section of the screw rod 61 extending out of the channel cross-arm 3 and is in screw-thread fit with the screw rod 61, and the bottom of the nut 63 contacts and abuts against the top of the fixed seat 1; the handle 64 is connected to the nut 63 and is used to drive the nut 63 to rotate.

[0062] Further, it further includes a connecting shaft 66; a through hole for the first end of the screw rod 61 to movably pass through is provided inside the connecting shaft 66, and two limiting shafts 661 distributed along the same straight line are symmetrically arranged on the outer peripheral wall of the connecting shaft 66; a clamping groove 131 for the limiting shaft 661 to movably snap into is provided on the fixed seat 1; an axial bearing (not shown in the figure) is fixedly embedded in the through hole; the nut 63 is installed on the connecting shaft 66, and the bottom of the nut 63 is connected to the axial bearing.

[0063] Specifically, in order to facilitate the connection between the nut 63 and the fixed seat 1, a connecting shaft 66 can be provided. The connecting shaft 66 is installed and fixed on the fixed seat 1 through the limiting shaft 661, and as shown in Figure 2 it can be shown that a limiting piece (not shown in the figure) is additionally provided on the clamping groove 131 to limit the movement of the limiting shaft 661, so that the installation of the connecting shaft 66 is more stable. An axial bearing can be arranged inside the connecting shaft 66, and the nut 63 can be connected to the connecting shaft 66 through the axial bearing, thereby realizing the connection with the fixed seat 1; by using the connecting shaft 66, the nut 63 can be elevated a certain distance from the top of the fixed seat 1, so as to facilitate the rotation of the handle 64. Those skilled in the art can make appropriate transformations based on this, and specific limitations are not made.

[0064] Further, a gear 631 that rotates synchronously with the nut 63 is sleeved on the nut 63; the first end of the handle 64 is sleeved on the gear 631, and a locking block 641 is rotatably arranged on one side of the gear 631 inside the first end of the handle 64; a tooth engaging portion that movably snaps into the tooth groove of the gear 631 is provided on the locking block 641; the locking block 641 is connected to a lever 642 that extends out of the handle 64.

[0065] Specifically, as shown in Figures 1 to 3 the first end of the handle 64 cooperates with the screw rod 61 and the nut 63. An avoidance cavity is provided inside the first end of the handle 64, which can be used to avoid the gear 631 and install the locking block 641. Moreover, a first opening for the gear 631 to extend into is provided at the bottom of the first end of the handle 64, and a second opening for the screw rod 61 to extend out is provided at the top; in order to facilitate the maintenance and replacement of the locking block 641, a cover plate (not shown in the figure) can be detachably arranged at the top of the first end of the handle 64, Figure 2 and Figure 3 as well as the state diagram with the cover plate removed, which can play a certain protective role for the locking block 641 while also facilitating the maintenance of the locking block 641.

[0066] Further, the connecting member 65 includes a rod sleeve portion 651 and a locking portion 652; the rod sleeve portion 651 is sleeved on the pull rod 62; the locking portion 652 is connected to the rod sleeve portion 651 and is provided with a locking hole for the wire 7 to movably pass through.

[0067] Specifically, as shown in Figure 1 andFigure 4 As shown, the locking part 652 can be in an L-shaped structure and can be integrally formed with the rod sleeve part 651. The locking part 652 can hook the wire 7, facilitating the upward movement of the wire 7; of course, the locking part 652 can also be a jaw structure that can clamp the wire 7. Regarding the structure of the locking part 652, there is no specific limitation.

[0068] Furthermore, a locking pin 632 is detachably connected between the locking part 652 and the rod sleeve part 651; a locking hole is formed among the locking pin 632, the locking part 652, and the rod sleeve part 651. Taking the locking part 652 as an L-shaped structure, a locking pin 632 can be added to make the connection between the locking part 652 and the wire 7 more firm and easy to disassemble, making it more convenient to use.

[0069] Furthermore, a plurality of first fixing holes 621 penetrating the pull rod 62 are arranged at intervals along the length direction of the pull rod 62; the rod sleeve part 651 is provided with a second fixing hole 6511 penetrating the rod sleeve part 651 and cooperating with the first fixing holes 621.

[0070] Specifically, since the lengths of different insulators 8 may be different, when in use, the length of the initial pull rod 62 applied also needs to be adjusted. If the method of replacing the length of the pull rod 62 is used for treatment, it will increase the complexity of the insulator 8 replacement operation and reduce the efficiency. Therefore, in this embodiment, the second fixing hole 6511 is provided on the rod sleeve part 651, and a plurality of first fixing holes 621 cooperating with it are arranged on the pull rod 62 in the length direction. In this way, when the application length of the pull rod 62 needs to be adjusted, the rod sleeve part 651 can be slid until the second fixing hole 6511 on the rod sleeve part 651 is aligned with the first fixing hole 621 on the pull rod 62, and then fixed through fasteners such as the pin shaft 5 as Figure 6 shown, which can flexibly adjust the application length of the pull rod 62, is convenient to use, and ensures the replacement efficiency of the insulator 8.

[0071] Furthermore, a first installation groove 12 for the first end of the hook claw 2 to movably extend into is formed at the first end of the fixed seat 1; a first hinge hole 121 penetrating the first installation groove 12 is formed on the fixed seat 1; a second hinge hole 22 cooperating with the first hinge hole 121 through the pin shaft 5 is formed at the first end of the hook claw 2. The hinge cooperation between the hook claw 2 and the fixed seat 1 is realized through the pin shaft 5, and the pin shaft 5 can be a quick-release pin, which is more convenient to disassemble, and there is no specific limitation

[0072] Further, a second installation groove 13 for avoiding the screw rod 61 is formed in the second end of the fixed seat 1; the connecting shaft 66 is installed on the second installation groove 13. The second installation groove 13 can be an open groove structure, which is convenient for the installation and disassembly cooperation between the connecting shaft 66 and the second installation groove 13. Correspondingly, a locking pin 632 can be detachably arranged on the second installation groove 13 to further limit the movement of the connecting shaft 66 and prevent the connecting shaft 66 from slipping out of the opening position of the second installation groove 13. The overall installation and disassembly of the connecting shaft are convenient, which is conducive to subsequent maintenance.

[0073] Further, a first reinforcing rib plate 311 is formed between the abutting portion 11 and the hook claw 2 for avoiding the upper edge of the top of the channel steel cross arm 3 arranged along the length direction of the channel steel cross arm 3. The first side walls of the abutting portion 11 and the hook claw 2 facing each other are in contact and fit with the first reinforcing rib plate 311.

[0074] Specifically, for the channel steel cross arm 3, the first reinforcing rib plate 311 as shown is usually arranged at the position directly opposite to the installation insulator 8. In this embodiment, by adjusting the distance relationship between the hook claw 2 and the abutting portion 11, the first side walls of the abutting portion 11 and the hook claw 2 facing each other are in contact and fit with the first reinforcing rib plate 311, so that the first reinforcing rib plate 311 can also be utilized to provide a certain limiting and blocking effect for the abutting portion 11 along the width direction of the channel steel cross arm 3, making the installation and fixation of the fixed seat 1 more firm. Figures 5 to 7

[0075] Further, a first limiting member 15 is further included; the first limiting member 15 includes a first connecting portion 151 and a first limiting portion 152; the first end of the first connecting portion 151 is connected to the fixed seat 1, and the second end of the first connecting portion 151 is vertically connected to the first limiting portion 152; a limiting space for avoiding the second reinforcing rib plate 312 vertically connected to both side walls of the first reinforcing rib plate 311 is formed between the second limiting portion 162 and the fixed seat 1.

[0076] Figure 5 Specifically, in order to further enhance the bearing capacity of the channel steel cross arm 3 at this position for the insulator 8, a second reinforcing rib plate 312 vertically connected to the first reinforcing rib plate 311 is usually added. The purpose of setting the first limiting member 15 in this embodiment is to utilize the second reinforcing rib plate 312 to make the installation and fixation of the fixed seat 1 more firm and stable. The first limiting member 15 can be in a shape like an L as shown. The first end of the first connecting portion 151 can be detachably installed on the fixed seat 1 through fasteners such as screws, and the second limiting portion 162 can be closely attached to the second reinforcing rib plate 312 to provide a certain limiting and blocking effect for the fixed seat 1 along the length direction of the channel steel cross arm 3, making the installation and fixation of the fixed seat 1 more firm.

[0077] ​​Further, it further includes a second limiting member 16; the second limiting member 16 includes a second connecting portion 161 and a second limiting portion 162; the first end of the second connecting portion 161 is connected to the fixed seat 1 and is located above the first limiting member 15, and the second end of the second connecting portion 161 is connected to the second limiting portion 162; the bottom of the second limiting portion 162 is in contact and fit with the top of the first limiting member 15.

[0078] Specifically, in order to make the limiting function of the first limiting member 15 better, a second limiting member 16 can be added to limit the first limiting member 15, thereby further improving the installation stability of the fixed seat 1. The second limiting member 16 can be as Figure 5 and Figure 6 shown. The second connecting portion 161 can be detachably installed on the fixed seat 1 through fasteners such as screws, and the second limiting portion 162 can be in the shape of a gear 631, and its teeth are in contact with the top of the first connecting portion 151 of the first limiting member 15 to realize the limiting of the first limiting member 15.

[0079] Further, a first magnetic attraction member 41 magnetically attracted to the channel steel cross arm 3 is provided on the abutting portion 11. The first magnetic attraction member 41 can be a permanent magnet. Using the permanent magnet can strengthen the contact between the abutting portion 11 and the top of the channel steel cross arm 3, further improving the installation stability of the fixed seat 1. At the same time, when installing the retractor, the movement of the fixed seat 1 can be reduced through the first magnetic attraction member 41 to ensure the stability of the fixed seat 1. At the same time, using the first magnetic attraction member 41 will not affect the disassembly of the fixed seat 1, which is convenient to use. The number of the first magnetic attraction members 41 is not limited, and can be, for example, Figure 5 two as shown in; the first magnetic attraction member 41 can be embedded and fixed at the bottom of the abutting portion 11, and the magnetic attraction surface of the first magnetic attraction member 41 magnetically attracted to the top of the channel steel cross arm 3 is flush with the bottom surface of the abutting portion 11. Of course, it can also be directly sleeved and fixed around the outer periphery of the abutting portion 11, and no specific limitation is made.

[0080] Further, similarly, a second magnetic attraction member 42 magnetically attracted to the first side plate portion 31 can also be provided on the hook claw 2. Adding the second magnetic attraction member 42 can further stabilize the installation of the fixed seat 1 and facilitate the subsequent installation of the retractor. Among them, the second magnetic attraction member 42 can also be embedded and fixed at the position of the first side wall of the hook claw 2 facing the first side plate portion 31, and the magnetic attraction surface of the second magnetic attraction member 42 magnetically attracted to the first side plate portion 31 is flush with the position of the first side wall of the hook claw 2, and no specific limitation is made.

[0081] Further, a plurality of hollow holes 14 are formed in the fixed seat 1. The addition of the hollow holes 14 can reduce the overall mass of the fixed seat 1, making the installation and disassembly more convenient, and at the same time saving manufacturing materials.

[0082] As can be seen from the above technical solutions, the present application forms a channel steel cross arm clamp by providing a fixed seat 1 and a hook 2 hinged to the fixed seat 1. The fixed seat 1 is provided with a holding portion 11 that is in movable contact with and abuts against the top of the channel steel cross arm 3, and the hook 2 is provided with a hooked portion 21 that is in hook-and-abut cooperation with the first side plate portion 31 of the channel steel cross arm 3. At the same time, the second end of the fixed seat 1 extends away from the hook 2 and extends out of the channel steel cross arm 3, which is convenient for installing a puller. The holding portion 11 of the fixed seat 1 can serve as a support point to support the fixed seat 1, and the hook 2 can provide a force for the fixed seat 1 to balance the acting force of the puller on the fixed seat 1, so that the fixed seat 1 can be stably installed on the channel steel cross arm 3 and provide stable support for the puller. Through the structural design of this channel steel cross arm clamp, the overall installation and disassembly are simple. At the same time, it is paired with a puller composed of a screw 61, a nut 63, and a handle 64. By driving the nut 63 to rotate through the handle 64, the screw-thread fit between the nut 63 and the screw 61 is realized, so that the screw 61 undergoes a relative displacement in the vertical direction, and then the wire 7 can be pulled upward. The overall use is convenient, ensuring the replacement efficiency of the insulator 8.

[0083] The above has introduced in detail the channel steel cross arm insulator screw rod force-increasing replacement device provided by the present application. For those of ordinary skill in the art, according to the idea of the embodiments of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. Channel steel cross arm insulator screw rod force - adding replacement device, characterized in that Including: Channel steel cross arm clamp and puller; The channel steel cross arm clamp includes a fixed seat and a hook claw; The fixed seat is provided with a holding portion that is in active contact with and abuts against the top of the channel steel cross arm; The first end of the hook claw is hinged to the first end of the fixed seat near the holding portion, and the second end of the hook claw is provided with a hook portion; The hook portion is provided with a groove for the first side plate portion of the channel steel cross arm to be actively inserted into; The bottom of the groove is in contact with and abuts against the bottom of the first side plate portion; The second end on the fixed seat extends out of the channel steel cross arm in a direction away from the hook claw; The puller includes a screw rod assembly and a pull rod; The screw rod assembly includes a screw rod, a nut and a handle; The first end of the screw rod penetrates upward through the fixed seat and extends out of the channel steel cross arm, and the second end is connected to the first end of the pull rod; The pull rod is connected to the wire through a connecting member; The nut is rotatably sleeved on the shaft section of the screw rod extending out of the channel steel cross arm, and is in threaded cooperation with the screw rod. The bottom of the nut is in contact with and abuts against the top of the fixed seat; The handle is connected to the nut for driving the nut to rotate; The holding portion is provided with a first magnetic attracting member that is magnetically attracted to the channel steel cross arm; The hook claw is provided with a second magnetic attracting member that is magnetically attracted to the first side plate portion; The nut is sleeved with a gear that rotates synchronously with the nut; The first end portion of the handle is sleeved on the gear, and a locking block is rotatably arranged on one side of the gear inside the first end portion of the handle; The locking block is provided with a tooth engaging portion that is actively inserted into the tooth groove of the gear; The locking block is connected with a lever that extends out of the handle.

2. The channel steel cross-arm insulator screw rod force-increasing replacement device according to claim 1, wherein It further includes a connecting shaft; The connecting shaft is provided with a through hole for the first end of the screw rod to actively pass through, and two limiting shafts are symmetrically arranged on the outer peripheral wall of the connecting shaft and distributed along the same straight line; The fixed seat is provided with a clamping groove for the limiting shaft to be actively inserted into; An axial bearing is embedded in the through hole; The nut is installed on the connecting shaft, and the bottom of the nut is connected to the axial bearing.

3. The channel steel cross arm insulator screw rod force adding replacement device according to claim 1, characterized in that, The connecting member includes a rod sleeve portion and a locking portion; The rod sleeve portion is sleeved on the pull rod; The locking portion is connected to the rod sleeve portion and is provided with a locking hole for the wire to actively pass through; 4. The channel steel cross arm insulator screw rod force - adding replacement device according to claim 3, characterized in that, A locking pin is detachably connected between the locking portion and the rod sleeve portion; The locking hole is formed by enclosing the locking pin, the locking portion and the rod sleeve portion; 5. The channel steel cross arm insulator screw rod force adding replacement device according to claim 3, characterized in that A plurality of first fixing holes penetrating the pull rod are arranged at intervals along the length direction of the pull rod; The rod sleeve portion is provided with second fixing holes penetrating the rod sleeve portion and matching with the first fixing holes; 6. The channel steel cross arm insulator screw rod force adding replacement device according to claim 1, characterized in that, A first installation groove for the first end of the hook claw to actively extend into is formed on the first end of the fixed seat; A first hinge hole penetrating the first installation groove is formed on the fixed seat; A second hinge hole that is matched with the first hinge hole through a pin shaft is formed on the first end of the hook claw; 7. The channel steel cross arm insulator screw rod force - adding replacement device according to claim 2, characterized in that A second installation groove for avoiding the screw rod is formed on the second end of the fixed seat; The connecting shaft is installed on the second installation groove.

8. The channel steel cross arm insulator screw rod force - increasing replacement device according to claim 1, characterized in that, A first reinforcing rib plate disposed along the length direction of the channel cross arm on the top of the channel cross arm is formed between the abutting portion and the hook claw, and the first side wall of the abutting portion facing the hook claw is in contact and fit with the first reinforcing rib plate.

9. The channel steel cross arm insulator screw rod force - adding replacement device according to claim 8, wherein, It further includes a first limiting member; The first limiting member includes a first connecting portion and a first limiting portion; The first end of the first connecting portion is connected to the fixed seat, and the second end of the first connecting portion is vertically connected to the first limiting portion; A limiting space for avoiding a second reinforcing rib plate vertically connected to both side walls of the first reinforcing rib plate is formed between the first limiting portion and the fixed seat.

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