Overhead conductor suspension insulator mounting bracket

Abstract

The invention discloses an overhead conductor suspension insulator mounting bracket, which relates to the technical field of valves, and comprises a supporting unit which comprises at least one baffle plate, a supporting strip and / or a tray fixed on the end surface of the baffle plate, and at least two pull rods flexibly connected with the other side of the supporting strip. The bracket has the advantages that the sag of the wire can be accurately adjusted, manpower is greatly saved, the risks of high-altitude falling and the like caused by the falling force of the suspension insulator are effectively avoided, and the bracket has the advantages of being simple in structure, light in weight, easy to use vertically, high in mechanical strength, high in stability and the like.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to an overhead conductor suspension insulator mounting bracket. Background Art

[0002] Overhead conductor tension rods are widely used in medium and low voltage distribution networks and are indispensable. Due to the weight and soft connection of suspension insulators, installation or replacement is inconvenient and there are certain safety hazards:

[0003] First, when installing a new suspension insulator, the assembled suspension insulator must be suspended and hoisted on the crossarm first, and then the wire rope sleeve is put on the crossarm, the tensioner is put into the wire rope sleeve, and the tensioner triangle wire clip is inserted into the conductor (according to the regulations and standards, it is strictly forbidden to hang the tensioner into the tension clamp ear to prevent the wire traction force from being too large and the tension clamp ear from breaking, causing the wire to run away and injure people or fall down), and the conductor is tightened to the appropriate position. At this time, the suspension insulator is in a downward hanging state, and it is necessary to lift the suspension insulator to a state parallel to the conductor by manpower, and then insert the conductor into the tension clamp and tighten it to fix the conductor on the suspension insulator.

[0004] Secondly, when replacing the suspension insulator, just like installing a new one, first use the wire rope sleeve to put it on the crossarm, then put the tensioner in the wire rope sleeve, and insert the tensioner triangle wire clip into the conductor. After the tensioner tightens the conductor so that the suspension insulator is not stressed and is in a relaxed state, remove the M pin of the suspension insulator to separate it from the tension clamp. At this time, the suspension insulator is in a downward hanging state. Then remove the suspension insulator, replace it with a new one, and then insert the conductor into the tension clamp and tighten it to fix the conductor on the suspension insulator. This process seems simple, but there are many dangerous factors.

[0005] Whether it is newly installed or replaced, the suspension insulator is in the downward hanging state before being connected to the tension clamp:

[0006] First, it affects the working space of the operators. Since the working space of the operators is limited, the working flexibility seems to be extremely mechanical, and they cannot better exert their working skills and expertise.

[0007] Second, the suspension insulator has poor stability when hanging down. If you are not careful, the suspension insulator will collide with the pole or cross arm and cause damage. And it is easy to fall from a high altitude when hanging down. Even if it is fixed with an M pin, since the suspension insulator is a soft connection, it cannot be guaranteed that each connection mechanism is firm.

[0008] Third, to connect the suspended suspension insulator with the tension clamp, both hands need to be used separately and in coordination to complete the task. The reason is that one hand holds up the tension clamp and the other hand lifts the suspension insulator. Both hands must exert force in opposite directions at the same time to make the suspension insulator and the tension clamp in the same straight horizontal position to effectively connect the suspension insulator to the tension clamp. Slight deviation in angle will not lead to effective connection (because the groove of the single-joint bowl head needs to fit into the ball head of the suspension insulator). Due to the weight of the suspension insulator itself (about 20 pounds) and the fact that it is in the air, one hand needs to lift it to a horizontal position and the other hand needs to lift the tension clamp while moving closer to the suspension insulator. The difficulty and intensity can be imagined, and it also reflects the professional skills of the operator.

[0009] Fourth, even if the suspension insulator is effectively connected to the tension clamp, the weight of the suspension insulator itself has the characteristic of falling force, so the suspension insulator is in a bent state. After the tensioner is loosened, the suspension insulator is stressed, causing the conductor to sag too much.

[0010] Fifth, when adjusting the conductor sag on the tension pole, although the tensioner adjusts the conductor sag to a qualified level, due to the downward force of the suspension insulator's own weight, the operator cannot hold the suspension insulator flat with one hand to make it bear the force, resulting in the tension clamp being unable to completely clamp the tightened conductor. When the tensioner is relaxed, the sag of the suspended insulator's stressed conductor still cannot achieve the desired effect of adjusting the curvature, and greatly increases the operator's operating difficulty and physical energy consumption. Summary of the invention

[0011] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0012] Therefore, the purpose of the present invention is to provide an overhead conductor suspension insulator mounting bracket, which can solve the problem of limited working space, poor stability, and easy damage or falling from a high altitude due to the weight of the insulator and the soft connection method. It also solves the problem that the connection process requires coordination of both hands, which is difficult to operate, and the dead weight of the insulator affects the sag adjustment of the conductor, increasing the difficulty of operation and physical energy consumption.

[0013] In order to solve the above technical problems, the present invention provides the following technical solutions: an overhead conductor suspension insulator mounting bracket, comprising a support unit, including at least one baffle, a support bar and / or a tray fixed to the end surface of the baffle, and at least two pull rods flexibly connected to the other side of the support bar;

[0014] The traction unit is arranged at one side of the support unit, and the traction unit comprises a wire clamp fixedly connected to the wire, and a wire tensioner arranged between the wire clamp and the support unit.

[0015] As a preferred solution of the overhead conductor suspension insulator mounting bracket of the present invention, the baffle is in the shape of a U-shaped segment.

[0016] As a preferred solution of the overhead conductor suspension insulator mounting bracket of the present invention, at least one first hanging buckle is fixed on one end surface of the baffle.

[0017] As a preferred solution of the overhead conductor suspension insulator mounting bracket of the present invention, the pull rod includes a connecting rod, an extension rod arranged at one end of the connecting rod, and a second hanging buckle arranged at one end of the extension rod.

[0018] As a preferred solution of the overhead conductor suspension insulator mounting bracket of the present invention, the connecting rod includes a first bolt penetrating through the surface thereof.

[0019] As a preferred solution of the overhead conductor suspension insulator mounting bracket of the present invention, the extension rod includes a second bolt penetrating the surface thereof.

[0020] As a preferred solution of the overhead conductor suspension insulator mounting bracket of the present invention, the support bars are distributed circumferentially on the surface of the baffle.

[0021] As a preferred solution of the overhead conductor suspension insulator mounting bracket of the present invention, the hooks at both ends of the wire gripper are fixedly connected to the wire tensioner and the first hanging buckle respectively.

[0022] Beneficial effects of the invention: The invention can accurately adjust the conductor sag, greatly save manpower, effectively avoid the risk of high-altitude falling caused by the falling force of the suspension insulator, and the bracket has the characteristics of simple structure, light weight, easy to use vertically, high mechanical strength, high stability, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a scene schematic diagram of the present invention.

[0025] Figure 2 It is a partial structural diagram of the support unit of the present invention.

[0026] Figure 3 This is a diagram showing the support unit of the present invention. DETAILED DESCRIPTION

[0027] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific embodiments of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0028] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0029] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is separate or selectively mutually exclusive with other embodiments.

[0030] Embodiment 1

[0031] Referring to Figure 1 and Figure 3 , for the first embodiment of the present invention, this embodiment provides an overhead conductor suspension insulator installation bracket, which includes a support unit 100, including at least one baffle 101, a support bar 102 and / or a tray 103 fixed to the end face of the baffle 101, and at least two tie rods 104 flexibly connected to the other side of the support bar 102;

[0032] A traction unit 200 is arranged on one side of the support unit 100. The traction unit 200 includes a wire gripper 201 fixedly connected to the wire, and a wire tightener 202 arranged between the wire gripper 201 and the support unit 100.

[0033] Preferably, at least one first hanging hook 101a is fixed on one end face of the baffle 101.

[0034] Preferably, the hooks at both ends of the wire gripper 201 are respectively fixedly connected to the wire tightener 202 and the first hanging hook 101a.

[0035] Specifically, when the number of baffles 101 is one, a plurality of support bars 102 are fixed to the end face of the baffle 101. In this embodiment, the baffle 101 is a rectangular strip, in a U shape. The support bars 102 are distributed along the U shape, thus forming a semi-enclosed accommodation space, and the insulator can be placed therein.

[0036] Preferably, a first hanging hook 101a is fixed to the other end face of the baffle 101. This hanging hook can be used for the hook on one side of the wire tightener 202 to be hooked in, and the hook on the other side of the wire tightener 202 is hooked into the wire gripper 201.

[0037] It should be noted that the wire gripper 201 and the wire tensioner 202 are both prior art and can be freely selected by those skilled in the art.

[0038] Since the baffle 101 is fixedly connected to the support bar 102, the other ends of at least two support bars 102 need to be connected to the pull rods 104 respectively. Specifically, through holes need to be opened at the ends of the two support bars 102, and the pull rod 104 is a straight rod, one end of which also needs to be opened with a through hole. The support bar 102 and the pull rod 104 are connected with flexible parts such as chains, ropes, and steel wires, and the other end of the pull rod 104 needs to be connected to the cross arm by bolts. A preset through hole or a through hole will be left on the cross arm, and the pull rod 104 at this time points to the extension direction of the wire. By using more than two pull rods 104, it can be ensured that the support unit 100 will not tip over.

[0039] When replacement is to be performed, the wire clamp 201 is fixed on the conductor, and then the support unit 100 is installed, the pull rod 104 is fixed to the cross arm surface by bolts, and then the bolts are adjusted according to the angle between the conductor and the cross arm. After tightening the bolts, the support unit 100 is suspended on the cross arm. Finally, the tensioner 201 is hung into the first hanging buckle 101a and the wire clamp 201. At this time, the support unit 100 is under the insulator and is in a relaxed state. The tensioner 201 is moved back and forth until the support unit 100 completely supports the insulator. After checking that there is no abnormality in the stress and firmness of each component, the tensioner 201 is continued to be moved until the insulator is relaxed and lies flat on the support unit 100. The operator can easily replace it without the conventional method of lifting and holding the insulator by hand, which greatly saves physical strength and is extremely easy to install.

[0040] Example 2

[0041] Reference Figure 1 to Figure 3 , which is the second embodiment of the present invention, is different from the first embodiment in that it also includes a baffle 101 in the shape of a U-shaped segment.

[0042] Preferably, the support strips 102 are distributed circumferentially on the surface of the baffle 101 .

[0043] It should be noted that when there are two baffles 101, a plurality of support bars 102 are fixed between the two baffles 101. In this embodiment, the baffle 101 is an arc-shaped strip, forming a U. The support bars 102 are distributed along the U, thereby forming a semi-enclosed accommodation space, in which the insulator can be placed. The structural strength constructed by the two baffles 101 and the plurality of support bars 102 is relatively high.

[0044] Preferably, a first hanging buckle 101a is fixed to the other end face of one baffle 101, and the hanging buckle can be used to hang the hook on one side of the tensioner 202, and the hook on the other side of the tensioner 202 is hung in the wire clamp 201. Two first hanging buckles 101a are fixed to the other end face of the other baffle 101, which are used to install two pull rods 104, and the two first hanging buckles 101a and the pull rod 104 are flexibly connected.

[0045] Preferably, the pull rod 104 is J-shaped, and a through hole is provided at one straight end, and two first hanging buckles 101a and the pull rod 104 on the same side are connected respectively by flexible members such as chains, ropes, and steel wires, and the hook-shaped end of the pull rod 104 needs to be hooked on the cross arm. By using more than two pull rods 104, the support unit 100 can be ensured not to tip over.

[0046] When replacement is to be performed, the wire clamp 201 is fixed on the wire, and then the support unit 100 is installed, and the pull rod 104 is hooked on the cross arm, and the support unit 100 is now hung on the cross arm. Finally, the two hooks of the tensioner 201 are respectively hung into the first hook 101a and the end of the wire clamp 201. At this time, the support unit 100 is below the insulator and is in a relaxed state. The tensioner 201 is moved back and forth until the support unit 100 completely supports the insulator. After checking that there is no abnormality in the stress and firmness of each component, the tensioner 201 is continued to be moved until the insulator is relaxed and lies flat on the support unit 100. The operator can easily replace it without the conventional method of lifting and holding the insulator by hand, which greatly saves physical strength and is extremely easy to install.

[0047] If you encounter a triangular arrangement: the conductor arrangement is divided into horizontal arrangement, triangular arrangement and vertical arrangement. The usage methods of horizontal arrangement and vertical arrangement are the same. You can temporarily install a fixed hook and hang it on the crossarm. You can also use a wire rope sleeve to wrap around the pole and hang the hook into the wire rope sleeve ring. The usage method is the same as the horizontal or vertical method.

[0048] Example 3

[0049] Reference Figure 1 to Figure 3 , which is the third embodiment of the present invention, is different from the previous two embodiments in that: it also includes that the pull rod 104 includes a connecting rod 104a, an extension rod 104b arranged at one end of the connecting rod 104a, and a second hanging buckle 104c arranged at one end of the extension rod 104b.

[0050] Preferably, the connecting rod 104a includes a first bolt 104a-1 penetrating through the surface thereof.

[0051] Preferably, the connecting rod 104a includes a first bolt 104a-1 penetrating through the surface thereof.

[0052] It should be noted that when there are multiple baffles 101, they need to be distributed along the axial direction, and a number of support bars 102 are fixed between the two outermost baffles 101 on both sides, and the baffles 101 are arc-shaped strips, forming a C. The support bars 102 are distributed along the C and penetrate the remaining baffles 101, thereby forming a semi-enclosed accommodation space. In addition, a tray 103 is fixed around the support bars 102, and the tray 103 completely wraps each support bar 102, also forming a C, and the insulator can be placed therein.

[0053] Preferably, the pull rod 104 is a throat-shaped structure, which is composed of a connecting rod 104a and an extension rod 104b. The extension rod 104b needs to be adaptively set according to the cross-arm structure and can be placed just under the insulator. The horizontal part of the extension rod 104b is connected with a second bolt 104b-1, and the connecting rod 104a is fixed at the end of the horizontal part of the extension rod 104b, vertically downward, and a first bolt 104a-1 is connected to the rod body of the connecting rod 104a.

[0054] Preferably, after the pull rod 104 is hung on the cross arm, the first bolt 104a-1 can adapt to cross arms of different sizes, tighten the connection between the two and adjust the sag during the tightening process, while the second bolt 104b-1 can play a role in positioning, preventing shaking and further fixing after adjusting the direction of the pull rod 104 to the extension direction of the wire.

[0055] Preferably, a second hanging buckle 104c is fixed to the other end of the extension rod 104b, and the second hanging buckle 104c at one end of the extension rod 104b can be connected to the first hanging buckle 101a by flexible parts such as chains, ropes, and steel wires. In this embodiment, one first hanging buckle 101a and two first hanging buckles 101a are respectively provided on the outward end surfaces of the outermost baffles 101 on both sides.

[0056] The baffle plate 101 fixed with two first hanging buckles 101 a is connected with two pull rods 104 , while the baffle plate 101 fixed with one first hanging buckle 101 a is connected with the wire clamp 201 through the wire tensioner 202 .

[0057] When replacement work is to be carried out, fix the wire holder 201 on the wire, and then install the support unit 100, hook the pull rod 104 on the cross arm, the connecting rod 104a is close to the vertical surface of the cross arm, and the extension rod 104b is close to the horizontal surface of the cross arm to form a state of hanging in the cross arm. If there is an error between the width of the cross arm and the size of the pull rod 104, tighten or loosen the first bolt 104a-1 to firmly fix the pull rod 104 and the cross arm.

[0058] Then, the two hooks of the tensioner 201 are respectively hung into the first hanging buckle 101a and the end of the wire clamp 201. At this time, the support unit 100 is under the insulator and is in a relaxed state. The tensioner 201 is pulled back and forth. At this time, the pull rod 104 is subjected to a certain traction force. Then, after adjusting the direction of the pull rod 104 to the extension direction of the wire, the second bolt 104b-1 is screwed in to position it and prevent the pull rod 104 from shaking left and right.

[0059] After the support unit 100 completely supports the insulator, check that the stress and firmness of each component are normal, and continue to pull the tensioner 201, the wire is pulled to one side of the insulator. At this time, the connection between the insulator and the wire gradually loosens and lies flat on the support unit 100. Then remove the suspension insulator and replace it with a new suspension insulator. Then insert the wire into the tension clamp and tighten it to fix the wire on the suspension insulator.

[0060] The tensioner 202 here can play a role in adjusting the sag during the tensioning process, and the first bolt 104a-1 can also play a role in adjusting the sag during the process after being screwed in.

[0061] The operator can easily replace it without the conventional method of lifting and holding the insulator by hand, which greatly saves physical strength and is extremely easy to install.

[0062] When installation work is required, the support unit 100 is first hung on the crossarm, the wire clamp 201 is clamped into the wire, and the hook of the wire tensioner 202 is hung into the wire clamp 201 and the first hook 101a, and then the wire tensioner 201 is pulled back until the wire is tightened to the appropriate position. The support unit 100 is lifted at this time, and the insulator to be installed can be directly placed in the cavity formed by the support bar 102 without manual lifting. At this time, the wire is also dragged to be adjacent to the insulator. At this time, the staff will insert the wire into the tension clamp, tighten it, and fix it to the insulator.

[0063] By providing the support unit 100, it is possible to avoid the problem of insufficient working space for personnel due to the hanging of insulators, prevent the insulators from shaking and colliding with poles and crossarms, and reduce the risk of falling from heights. In addition, after the support unit 100 is tightened, there is no need for personnel to hold the insulators and the tension clamps by hand. During the connection process, the difficulty of angle alignment in the matching process is reduced, and it is very easy to bring the insulators and the tension clamps closer together, reducing the difficulty of installation. The entire bracket can pre-adjust the sag of the conductor. When installed in a traditional manner, even if the conductor end is tightened by the tensioner 202, the insulator will be stressed and in a bent state. After the connection is completed, once the tensioner is relaxed, the sag will exceed expectations.

[0064] When adjusting the conductor sag on the tension pole, although the tensioner 202 adjusts the conductor sag to a qualified level, due to the downward force of the suspension insulator's own weight, the operator cannot hold the suspension insulator flat with one hand to make it bear the force, resulting in the tension clamp being unable to completely clamp the tightened conductor. When the tensioner 201 is relaxed, the sag of the suspension insulator's stressed conductor still cannot achieve the desired effect of adjusting the curvature, and greatly increases the operator's operating difficulty and physical energy consumption.

[0065] In summary, this design can accurately adjust the conductor sag, greatly save manpower, and effectively avoid the risks of falling from high altitude caused by the falling force of the suspension insulator. In addition, the bracket has the characteristics of simple structure, light weight, easy to use vertically, high mechanical strength, and high stability.

[0066] Compared with the traditional operation method, the conductor sag can be accurately adjusted without causing pullback; the suspension insulator will not fall vertically to cause collision or falling; it can be flexibly adjusted according to the angle between the conductor and the crossarm, eliminating the tediousness of using the wire rope sleeve to insert the tensioner; because of the support of the bracket, the suspension insulator is extremely convenient to install, replace and adjust the conductor sag; because there is a baffle limiter at the head end of the bracket, the suspension insulator will not fall off the bracket; it saves manpower and reduces the risk of operators; the structure is easy to use, etc.

[0067] Example 4

[0068] Reference Figure 1 to Figure 3 , which is the fourth embodiment of the present invention, is different from the first three embodiments in that the size of the bracket is quantified.

[0069] The radius of the suspension insulator is about 140mm. The tray 103 is semicircular, with an inner wall radius of 150mm, an outer radius of 160mm, and a thickness of 10mm, to ensure sufficient mechanical and tensile strength and to accommodate the suspension insulator. At the front end of the tray, there is a baffle 101 with a length of 250mm, a width of 100, and a thickness of 5mm connected to the tray 103, which serves as a limit for the suspension insulator; the surface of the baffle 101 is connected to a first hanging buckle 101a with a length of 50mm, a width of 40mm, and a thickness of 10mm, and a circular hole with a diameter of 30mm is opened in the middle position 15mm from the port of the first hanging buckle 101a as a hook ear for the tensioner 202. The above dimensions ensure that the hook has sufficient mechanical strength and traction; every 50mm on the tray 103 A 50*5*300mm support bar 102 is installed until the entire pallet is covered. A 50mm interval is designed for the pallet 103, mainly to reduce the weight of the pallet without losing the mechanical stress of the pallet. The surface of the baffle 101 at the tail end of the pallet 103 is symmetrically connected with a 10mm thick and 50mm long chain through the first hanging buckle 101a. The chain is flexible and can be adjusted in position. The tail end of the chain is connected to a pull rod 104 with a diameter of 15mm and a length of 100mm. The pull rod 104 is extended by 100mm and bent into two right-angle hooks with 90° angles and an inner hollow of 82mm, which can be easily inserted into the vertical surface of the crossarm 63-80mm; a circular hole with a diameter of 8mm is opened at the center position of the top of the two hooks, and a matching first bolt 104a-1 is arranged as an adjustment bolt. When the size of the pull rod hung in the crossarm is inconsistent, the first bolt 104a-1 can be adjusted for adjustment; then, a circular hole with a diameter of 6mm is opened at the center position of the two pull rods 40mm away from the top of the hook and within the range of 63-80mm on the horizontal surface of the crossarm, and a matching second bolt 104b-1 is arranged as a locking bolt. When the fixed hook is hung in the crossarm, the second bolt 104b-1 is tightened to fasten it with the crossarm to prevent the hook from sliding left and right and detaching from the crossarm when subjected to force, causing an accident. Except for the bolts, the above process uses alloy materials, such as aluminum and iron alloy, which have the advantages of light weight and high mechanical strength. The above process, components and materials are used to make an overhead conductor tension pole suspension insulator mounting bracket.

[0070] It is important to note 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. An overhead conductor suspension insulator mounting bracket, characterized in that: include, A support unit (100) comprising at least one baffle (101), a support bar (102) and / or a tray (103) fixed to an end surface of the baffle (101), and at least two pull rods (104) flexibly connected to the other side of the support bar (102); A traction unit (200) is arranged on one side of the support unit (100), and the traction unit (200) comprises a wire gripper (201) fixedly connected to the wire, and a wire tensioner (202) arranged between the wire gripper (201) and the support unit (100).

2. The overhead conductor suspension insulator mounting bracket according to claim 1, characterized in that: The baffle (101) is in the shape of a U-shaped section.

3. The overhead conductor suspension insulator mounting bracket according to claim 2, characterized in that: At least one first hanging buckle (101a) is fixed on one of the end surfaces of the baffle (101).

4. The overhead conductor suspension insulator mounting bracket according to claim 1 or 2, characterized in that: The pull rod (104) comprises a connecting rod (104a), an extension rod (104b) arranged at one end of the connecting rod (104a), and a second hanging buckle (104c) arranged at one end of the extension rod (104b).

5. The overhead conductor suspension insulator mounting bracket according to claim 4, characterized in that: The connecting rod (104a) comprises a first bolt (104a-1) which is arranged through the surface of the connecting rod.

6. The overhead conductor suspension insulator mounting bracket according to claim 4, characterized in that: The extension rod (104b) comprises a second bolt (104b-1) which is arranged through the surface of the extension rod.

7. The overhead conductor suspension insulator mounting bracket according to claim 1, characterized in that: The support strips (102) are distributed circumferentially on the surface of the baffle (101).

8. The overhead conductor suspension insulator mounting bracket according to claim 3, characterized in that: The hooks at both ends of the wire gripper (201) are fixedly connected to the wire tensioner (202) and the first hanging buckle (101a) respectively.

Images