Self-adaptive fastening clamp for wiring at top of bridge

Abstract

The utility model relates to the technical field of wiring clamps, in particular to a bridge top wiring self-adaptive fastening clamp which comprises a base, a clamping seat is hinged to the first end of the base, and a torsion spring is arranged between the clamping seat and the base and elastically abuts against the clamping seat so that the free end of the clamping seat can abut against the second end of the base. The rack is arranged at the second end of the base and has elasticity, and a tooth opening suitable for the rack to movably penetrate through is formed in the free end of the clamping base; and the clamping mechanism is arranged on the tooth opening and is used for limiting the free end part of the clamping seat to move towards the upper part of the rack after the rack passes through the tooth opening. According to the utility model, through the clamping mechanism, when the rack is inserted into the tooth opening, the clamping mechanism can limit the free end part of the clamping seat to move towards the upper part of the rack, and after the elasticity of the torsion spring is reduced in long-time use, the rack and the tooth opening are matched to form a stable locking structure; and the clamping seat can still firmly clamp the cable on the base after the elasticity of the torsion spring is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring clamps, in particular to an adaptive fastening clamp for wiring on the top of a bridge frame. Background Art

[0002] A cable bridge refers to a structure used to support, fix and protect power lines and communication lines, and the wiring clamps are usually installed on the top of the bridge to fasten and fix the cables in an adaptive manner. This type of clamp usually has the ability to sense and identify the size, shape and position of the cables, and can dynamically adjust its own structure to adapt to different cables.

[0003] The existing wiring clamp is usually composed of two arched clamping parts that are combined and then fixed by bolts to clamp and fix the cable placed between the two clamping parts. Although this type of clamp can clamp and fix the cable, the bolts may loosen due to factors such as vibration and temperature changes after long-term use, resulting in a weakening of the clamping force and the cable may slip or fall off. Therefore, the existing technology is improved by providing a guide rod and a spring between the two clamping parts. The spring abuts the clamping part so that the clamping part can continuously apply pressure to the cable, thereby preventing the cable from loosening between the clamping parts. However, this type of clamp also has certain problems. For example, after long-term use, the spring may become fatigued due to continuous abutment and compression, resulting in a weakening of its elasticity, thereby affecting the pressure of the clamping part, so that the clamping effect of the cable is reduced. Therefore, the utility model aims to provide an adaptive fastening clamp that can be used for a long time and is difficult to loosen. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an adaptive fastening clamp for wiring on the top of a bridge frame, which can be used for a long time and is difficult to loosen, so as to solve the problem that the clamp in the prior art is easy to loosen after long-term use.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model provides an adaptive fastening clamp for wiring on the top of a bridge frame, comprising a base, a clamping seat hinged at a first end of which, a torsion spring is provided between the clamping seat and the base to elastically abut the clamping seat so that the free end of the clamping seat abuts against the second end of the base; a rack, which is arranged at the second end of the base and has elasticity, and a tooth opening suitable for the rack to move through the free end of the clamping seat; and a locking mechanism, which is arranged at the tooth opening and is used to limit the free end of the clamping seat from moving toward the top of the rack after the rack passes through the tooth opening.

[0008] Optionally, the locking mechanism includes a locking portion and a spring, a locking groove is provided in the base, the locking groove is connected to the tooth mouth, the locking portion is arranged in the locking groove, the first end of the locking portion has an inclined surface, the spring is arranged in the locking groove and elastically abuts against the second end of the locking portion.

[0009] Optionally, a guide rod is provided in the locking groove, a first end of the guide rod is fixed to the base, a guide hole is provided at the second end of the locking portion, and the second end of the guide rod is movably disposed in the guide hole.

[0010] Optionally, a movable groove connected to the locking groove is provided on the base, a driving rod is movably provided in the movable groove, a first end of the driving rod is fixed to the locking portion, and a second end of the driving rod is exposed from the movable groove.

[0011] Optionally, a friction-increasing portion is provided at the free end of the driving rod.

[0012] Optionally, the bottom of the clamping seat and the top of the base are both recessed to form an arc-shaped opening, and an arc-shaped rubber is provided in the arc-shaped opening to fit the arc-shaped opening.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an adaptive fastening fixture for wiring on the top of a bridge frame, which has the following beneficial effects:

[0015] 1. The utility model uses a locking mechanism. When the rack is inserted into the tooth opening, the locking mechanism will limit the free end of the clamping seat from moving upward toward the rack. When the elasticity of the torsion spring decreases after long-term use, the cooperation between the rack and the tooth opening will form a stable locking structure, ensuring that the clamping seat can still firmly clamp the cable on the base after the elasticity of the torsion spring decreases;

[0016] 2. The utility model provides a guide rod, and when the stopper moves, the guide rod makes the stopper move more stably;

[0017] 3. The utility model provides an arc-shaped rubber. When the cable is clamped between the clamping seat and the base, the arc-shaped rubber increases the friction force of the clamping seat and the base on the cable to prevent the cable from moving between the clamping seat and the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of the utility model when opened and closed is shown;

[0019] Figure 2 A schematic diagram of the three-dimensional structure of the utility model when closed is shown;

[0020] Figure 3 A schematic diagram of a three-dimensional cutaway structure of the utility model is shown;

[0021] Figure 4 Shows Figure 3 A schematic diagram of the enlarged structure at point A;

[0022] Figure 5 A schematic diagram of the three-dimensional structure of the clamping seat is shown;

[0023] Figure 6 Shows Figure 5 A schematic diagram of the enlarged structure at B;

[0024] Figure 7 A schematic diagram of the three-dimensional structure of the locking portion and the driving rod is shown.

[0025] In the figure: 1. base; 2. clamping seat; 3. torsion spring; 4. rack; 5. tooth mouth; 6. locking mechanism; 7. locking part; 8. spring; 9. locking groove; 10. guide rod; 11. guide hole; 12. movable groove; 13. driving rod; 14. friction increasing part; 15. arc mouth; 16. arc rubber. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example: See Figures 1 to 7 According to an embodiment of the utility model, a technical solution is provided: an adaptive fastening clamp for wiring on the top of a bridge frame, comprising a base 1, a clamping seat 2 hinged at a first end thereof, a torsion spring 3 provided between the clamping seat 2 and the base 1, for elastically abutting the clamping seat 2 so that the free end of the clamping seat 2 abuts against the second end of the base 1; a rack 4, which is arranged at the second end of the base 1 and has elasticity, and a tooth opening 5 suitable for the rack 4 to move through the free end of the clamping seat 2; and a locking mechanism 6, which is arranged at the tooth opening 5 and is used to limit the free end of the clamping seat 2 from moving upward toward the rack 4 after the rack 4 passes through the tooth opening 5.

[0028] The adaptive fastening clamp for wiring on the top of the bridge frame adopts the above-mentioned structure. When the user needs to clamp the cable, first, pull open the clamping seat 2 and place the cable on the base 1. Then, release the clamping seat 2, and the clamping seat 2 will elastically abut against the torsion spring 3 until the free end of the clamping seat 2 fits the second end of the base 1. At this time, through the elastic abutment of the torsion spring 3, the clamping seat 2 will continuously abut and clamp the cable on the base 1 to prevent it from sliding or falling off. Then, align the rack 4 on the base 1 with the tooth opening 5 on the clamping seat 2 so that the rack 4 is inserted into the tooth opening 5, and the locking mechanism 6 will limit the free end of the clamping seat 2 from moving upward toward the rack 4. When the elasticity of the torsion spring 3 decreases after long-term use, the cooperation of the rack 4 and the tooth opening 5 will form a stable locking structure to ensure that the clamping seat 2 can still firmly clamp the cable on the base 1 after the elasticity of the torsion spring 3 decreases.

[0029] When the tooth opening 5 is stopped, the spring 8 is arranged in the locking groove 9 to elastically abut the second end of the locking portion 7; when the user inserts the rack 4 into the tooth opening 5, the teeth on the rack 4 will abut the inclined surface above the locking portion 7 to abut the locking portion 7 into the locking groove 9, so that the free end of the clamping seat 2 can move toward the bottom of the rack 4, and when the free end of the clamping seat 2 moves toward the top of the rack 4, since there is no inclined surface below the locking portion 7, when the rack 4 moves upward, the rack 4 will be stopped by the bottom of the locking portion 7, and when the free end of the clamping seat 2 stops moving, the spring 8 located in the locking groove 9 will elastically abut the locking portion 7 between the teeth of the stop rack 4.

[0030] In this embodiment, a guide rod 10 is provided in the locking groove 9, the first end of the guide rod 10 is fixed on the base 1, the second end of the locking portion 7 is provided with a guide hole 11, and the second end of the guide rod 10 is movably provided in the guide hole 11; when the locking portion 7 moves, the guide rod 10 will make the locking portion 7 move more stably.

[0031] In this embodiment, a movable groove 12 connected to the locking groove 9 is provided on the base 1, and a driving rod 13 is movably provided in the movable groove 12. The first end of the driving rod 13 is fixed to the locking portion 7, and the second end of the driving rod 13 is exposed in the movable groove 12; when the user needs to move the free end of the clamping seat 2 toward the top of the rack 4, the free end of the driving rod 13 is moved along the movable groove 12 to move the locking portion 7 into the locking groove 9, so that the locking portion 7 is away from the rack 4, which is convenient for moving the free end of the clamping seat 2 toward the top of the rack 4.

[0032] In this embodiment, a friction-enhancing portion 14 is provided at the free end of the driving rod 13 ; when the user moves the free end of the driving rod 13 , the friction-enhancing portion 14 increases the friction between the user's finger and the driving rod 13 , making it easier for the user to move the driving rod 13 .

[0033] In this embodiment, the bottom of the clamping seat 2 and the top of the base 1 are both recessed to form an arc-shaped opening 15, and an arc-shaped rubber fitting the arc-shaped opening 15 is provided inside the arc-shaped opening 15; when the cable is clamped between the clamping seat 2 and the base 1, the arc-shaped rubber increases the friction force of the clamping seat 2 and the base 1 on the cable to prevent the cable from moving between the clamping seat 2 and the base 1.

[0034] Working principle: When the user needs to clamp the cable, first, pull open the clamping seat 2 and place the cable on the base 1. Then, release the clamping seat 2, and the clamping seat 2 will elastically abut against the torsion spring 3 until the free end of the clamping seat 2 fits the second end of the base 1. At this time, through the elastic abutment of the torsion spring 3, the clamping seat 2 will continue to abut and clamp the cable on the base 1 to prevent it from sliding or falling off. Then, align the rack 4 on the base 1 with the tooth opening 5 on the clamping seat 2, so that the rack 4 When the rack 4 is inserted into the tooth opening 5, the teeth on the rack 4 will abut against the inclined surface above the stop portion 7, so that the stop portion 7 is abutted into the stop groove 9, so that the free end of the clamping seat 2 can move toward the bottom of the rack 4. When the free end of the clamping seat 2 moves toward the top of the rack 4, since there is no inclined surface below the stop portion 7, the rack 4 will be stopped by the bottom of the stop portion 7 when it moves upward. When the free end of the clamping seat 2 stops moving, the spring 8 located in the stop groove 9 will hold the stop portion 7 in place. The elastic abutment stops the teeth of the rack 4. When the elasticity of the torsion spring 3 decreases after long-term use, the cooperation between the rack 4 and the stop part 7 will form a stable locking structure, ensuring that the clamping seat 2 can still firmly clamp the cable on the base 1 after the elasticity of the torsion spring 3 decreases; when the stop part 7 moves, the guide rod 10 makes the movement of the stop part 7 more stable; when the user needs to move the free end of the clamping seat 2 toward the top of the rack 4, the free end of the driving rod 13 moves along the movable groove 12 to clamp the cable firmly. The stop portion 7 moves into the locking groove 9, so that the locking portion 7 is away from the rack 4, which is convenient for moving the free end of the clamping seat 2 toward the top of the rack 4; when the user moves the free end of the driving rod 13, the friction increasing portion 14 increases the friction between the user's finger and the driving rod 13, which is convenient for the user to move the driving rod 13; when the cable is clamped between the clamping seat 2 and the base 1, the arc-shaped rubber increases the friction between the clamping seat 2 and the base 1 on the cable to prevent the cable from moving between the clamping seat 2 and the base 1.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive fastening fixture for wiring on the top of a bridge, characterized in that: include: A base (1) having a clamping seat (2) hingedly connected to a first end thereof, a torsion spring (3) being provided between the clamping seat (2) and the base (1) for elastically abutting against the clamping seat (2) so that a free end of the clamping seat (2) abuts against a second end of the base (1); A rack (4) is arranged at the second end of the base (1) and has elasticity, and a tooth opening (5) suitable for the rack (4) to move through is formed at the free end of the clamping seat (2); and A locking mechanism (6) is arranged at the tooth opening (5) and is used to limit the free end of the clamping seat (2) from moving upwards toward the tooth opening (4) after the toothed rack (4) passes through the toothed opening (5).

2. The self-adaptive fastening fixture for routing cables on the top of a bridge according to claim 1, characterized in that: The locking mechanism (6) comprises a locking portion (7) and a spring (8); a locking groove (9) is provided in the base (1); the locking groove (9) is communicated with the tooth opening (5); the locking portion (7) is arranged in the locking groove (9); the first end of the locking portion (7) has an inclined surface; the spring (8) is arranged in the locking groove (9) and elastically abuts against the second end of the locking portion (7).

3. The self-adaptive fastening fixture for routing cables on the top of a bridge according to claim 2, characterized in that: A guide rod (10) is provided in the locking groove (9), a first end of the guide rod (10) is fixed on the base (1), a second end of the locking portion (7) is provided with a guide hole (11), and the second end of the guide rod (10) is movably arranged in the guide hole (11).

4. The self-adaptive fastening fixture for routing cables on the top of a bridge according to claim 3, characterized in that: The base (1) is provided with a movable groove (12) connected to the locking groove (9), a driving rod (13) is movably arranged in the movable groove (12), a first end of the driving rod (13) is fixed to the locking portion (7), and a second end of the driving rod (13) is exposed from the movable groove (12).

5. The self-adaptive fastening fixture for routing cables on the top of a bridge according to claim 4, characterized in that: The free end of the driving rod (13) is provided with a friction increasing portion (14).

6. The self-adaptive fastening fixture for routing cables on top of a bridge according to claim 1, characterized in that: The bottom of the clamping seat (2) and the top of the base (1) are both recessed to form an arc-shaped opening (15), and an arc-shaped rubber is arranged in the arc-shaped opening (15) to fit the arc-shaped opening (15).

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