Fixture for fixing cable grounding box

Abstract

The utility model relates to the technical field of cable grounding box fixing, in particular to a cable grounding box fixing clamp which comprises a plurality of inner mounting rings, a plurality of elastic plates are fixedly connected to each inner mounting ring, a roller is rotatably connected to each elastic plate, a plurality of holes are formed in the elastic plates, outer mounting rings are slidably connected to the inner mounting rings, and the outer mounting rings are provided with holes. Limiting rods are slidably connected to the outer mounting ring and matched with holes in the elastic plates, the outer mounting ring slides on the inner mounting ring and extrudes the multiple elastic plates, so that the rollers on the elastic plates make contact with the cable, the friction force between the rollers and the cable is improved through the elasticity of the elastic plates, and therefore the cable is fixed and prevented from shaking on the grounding box. And the cable can be conveniently inserted and taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of cable earthing box fixing, and specifically, it is a cable earthing box fixing clamp. Background Art

[0002] An earthing box is a device used to ensure the safe operation of a power system. It is mainly responsible for providing a grounding connection for the cable line to ensure that in the event of a fault, the current can flow safely into the ground, thereby preventing accidents such as electrical fires and electric shocks. When the cable is inserted into the earthing box, the connection must be firm to prevent the cable from loosening or falling off during use.

[0003] The prior art usually uses bolts, nuts or other fixing devices to ensure a firm and reliable connection. However, this method is very inefficient for the installation and removal of cables. Generally, multiple cables are connected to an earthing box, and the installation and disassembly require a lot of time. Therefore, a fixing clamp for the earthing box is needed, which can facilitate workers to install the cable onto the earthing box. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cable earthing box fixing clamp to solve the problem of rapid installation and removal of the cable on the earthing box.

[0005] The utility model is realized through the following technical solutions: A cable earthing box fixing clamp includes a plurality of inner mounting rings. A plurality of elastic plates are fixedly connected to each inner mounting ring. A roller is rotatably connected to each elastic plate. A plurality of holes are provided on the elastic plates. An outer mounting ring is slidably connected to the inner mounting ring. A limiting rod is slidably connected to the outer mounting ring. The limiting rod matches the holes on the elastic plates. By sliding the outer mounting ring on the inner mounting ring, a plurality of elastic plates are squeezed, so that the rollers on the elastic plates contact the cable, and the friction between the rollers and the cable is increased through the elasticity of the elastic plates themselves, thereby fixing the cable, preventing the cable from shaking on the earthing box, and facilitating the insertion and removal of the cable.

[0006] To better realize the utility model, further, a forward slider is slidably connected to the chute of the outer mounting ring. The first end of a lower connecting rod is rotatably connected to the forward slider. The second end of the lower connecting rod is rotatably connected to the first end of an upper connecting rod. The second end of the upper connecting rod is fixedly connected to a cross link. The cross link is slidably connected to the earthing box.

[0007] To better realize the utility model, further, two push rods are rotatably connected to the cross link. There is a large frictional force between the push rods and the cross link.

[0008] To better implement the present utility model, further, a lifting slider is slidably connected to the chute of the outer mounting ring. The first end of a lifting link is rotatably connected to the lifting slider, the second end of the lifting link is rotatably connected to the first end of a lifting rod, the second end of the lifting rod is fixedly connected to a limiting rod, the second end of the lifting rod is also fixedly connected to the first end of a limiting spring, and the second end of the limiting spring is fixedly connected to the outer mounting ring.

[0009] To better implement the present utility model, further, an arc-shaped push rod is fixedly connected to the lifting slider, and the arc-shaped push rod is slidably connected to the outer mounting ring.

[0010] To better implement the present utility model, further, a plurality of wiring ports are fixedly connected to the grounding box. Threads are provided on the wiring ports, and threads are also provided on the inner mounting ring. The inner mounting ring is threadedly connected to the wiring ports, and the inner mounting ring is installed on the wiring ports through the threads.

[0011] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0012] 1. The present utility model fixes the cable by setting an elastic plate and rollers, and uses the elasticity of the elastic plate for buffering to avoid excessive clamping force and damage to the cable.

[0013] 2. The present utility model quickly controls the fixing and loosening of the cable by setting the extrusion of the outer mounting ring on the elastic plate, so as to realize the quick insertion and extraction of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a front view of the present utility model;

[0016] Figure 3 is a schematic diagram of the structure of the cross link of the present utility model;

[0017] Figure 4 is Figure 3 a partial enlarged view of the structure at A in

[0018] Figure 5 is a schematic diagram of the structure of the elastic plate of the present utility model;

[0019] Figure 6 is Figure 5 a partial enlarged view of the structure at B in

[0020] Among them, 101 - grounding box; 102 - wiring port; 103 - inner mounting ring; 104 - outer mounting ring; 105 - elastic plate; 106 - roller; 107 - limiting frame; 108 - forward slider; 109 - lower connecting rod; 110 - upper connecting rod; 111 - arc-shaped push rod; 112 - lifting slider; 113 - lifting connecting rod; 114 - lifting rod; 115 - limiting rod; 116 - limiting spring; 117 - horizontal connecting rod; 118 - push rod. Specific implementation manner

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1:

[0023] As Figures 1 to 6 shown, a fixing clamp for a cable grounding box includes a plurality of inner mounting rings 103. A plurality of elastic plates 105 are fixedly connected to each inner mounting ring 103. A roller 106 is rotatably connected to each elastic plate 105. A plurality of holes are provided on the elastic plate 105. An outer mounting ring 104 is slidably connected to the inner mounting ring 103. A limiting rod 115 is slidably connected to the outer mounting ring 104. The limiting rod 115 is matched with the holes on the elastic plate 105. By sliding the outer mounting ring 104 on the inner mounting ring 103, a plurality of elastic plates 105 are squeezed, so that the rollers 106 on the elastic plates 105 contact the cable, and the friction between the rollers 106 and the cable is increased through the elasticity of the elastic plates 105 themselves, thereby fixing the cable, preventing the cable from shaking on the grounding box, and facilitating the insertion and removal of the cable.

[0024] A forward slider 108 is slidably connected to the chute of the outer mounting ring 104. The first end of a lower connecting rod 109 is rotatably connected to the forward slider 108. The second end of the lower connecting rod 109 is rotatably connected to the first end of an upper connecting rod 110. The second end of the upper connecting rod 110 is fixedly connected to a horizontal connecting rod 117. The horizontal connecting rod 117 is slidably connected to the grounding box 101.

[0025] During use, the lower connecting rod 109 is pushed by the upper connecting rod 110. The lower connecting rod 109 then pushes the forward slider 108 to slide on the chute of the outer mounting ring 104. When the forward slider 108 can no longer slide on the outer mounting ring 104, the forward slider 108 pushes the outer mounting ring 104 to slide on the inner mounting ring 103. Further, the outer mounting ring 104 contacts and presses the elastic plate 105, causing the elastic plate 105 to change from tilting outward to fitting inward, that is, approaching the cable. Thus, the roller 106 on the elastic plate 105 fits the cable. Further, under the continuous pushing of the forward slider 108, the outer mounting ring 104 further presses the elastic plate 105, making the contact between the roller 106 and the cable closer. Thereby, the friction between the roller 106 and the elastic plate 105 increases, and thus the fixing of the cable is achieved, preventing the cable from shaking in the grounding box due to external factors during use.

[0026] Embodiment Two:

[0027] As Figure 3 and Figure 4 shown, two push rods 118 are rotatably connected to the cross connecting rod 117, and there is a large frictional force between the push rods 118 and the cross connecting rod 117.

[0028] During use, the push rod 118 is rotated so that one end of the push rod 118 leaves the cross connecting rod 117, that is, the two push rods 118 rotate 180 degrees. Thus, the staff manually pushes the push rod 118, driving the cross connecting rod 117 to slide on the grounding box 101, and further pushing the forward slider 108 to slide on the outer mounting ring 104. When not in use, the push rod 118 is fixed by this frictional force.

[0029] Embodiment Three:

[0030] As Figure 5 and Figure 6 shown, a lifting slider 112 is slidably connected to the chute of the outer mounting ring 104. The first end of a lifting connecting rod 113 is rotatably connected to the lifting slider 112. The second end of the lifting connecting rod 113 is rotatably connected to the first end of a lifting rod 114. The second end of the lifting rod 114 is fixedly connected to a limiting rod 115. The second end of the lifting rod 114 is also fixedly connected to the first end of a limiting spring 116, and the second end of the limiting spring 116 is fixedly connected to the outer mounting ring 104.

[0031] An arc-shaped push rod 111 is fixedly connected to the lifting slider 112, and the arc-shaped push rod 111 is slidably connected to the outer mounting ring 104.

[0032] During use, the forward slider 108 slides on the chute of the outer mounting ring 104. The forward slider 108 pushes the arc-shaped push rod 111 to slide on the chute of the outer mounting ring 104. Thus, the arc-shaped push rod 111 drives the lifting slider 112 to also slide on the chute of the outer mounting ring 104. Furthermore, the lifting slider 112 pushes the first end of the lifting link 113. The second end of the lifting link 113 pushes the lifting rod 114 to move away from the outer mounting ring 104. Thus, the lifting rod 114 pulls the elastic plate 105 away from the outer mounting ring 104. And the outer mounting ring 104 also stretches the limit spring 116. Thus, when the limit rod 115 contacts the hole on the elastic plate 105, under the action of the limit spring 116, the limit rod 115 will not directly insert into the hole of the elastic plate 105, resulting in the outer mounting ring 104 being unable to move further, making the fixation of the cable insecure or not fixed at all.

[0033] When the outer mounting ring 104 moves to a proper position, that is, when the roller 106 has fixed the cable, the push rod 118 is no longer pushed. Thus, the forward slider 108, the arc-shaped push rod 111, and the lifting slider 112 lose the acting force. Furthermore, the limit rod 115 moves towards the outer mounting ring 104 under the action of the limit spring 116, making the limit rod 115 insert into the hole on the elastic plate 105. As Figure 6 shown, during the movement of the limit rod 115, the second end of the lifting link 113 is driven downward by the lifting rod 114. Thus, the first end of the lifting link 113 pushes the lifting slider 112 to the left, making the lifting slider 112 drive the arc-shaped push rod 111 to push the forward slider 108 to slide on the outer mounting ring 104. And the forward slider 108 pushes the cross link 117 to slide on the grounding box 101 through the lower connecting rod 109 and the upper connecting rod 110. Furthermore, the forward slider 108 and the lifting slider 112 are reset.

[0034] When the cable needs to be unplugged, push the push rod 118 downward again. Through the cross link 117, the upper connecting rod 110 and the lower connecting rod 109, the forward slider 108 is pushed to slide on the outer mounting ring 104. Thus, the forward slider 108 drives the lifting slider 112 through the arc-shaped push rod 111 to push the lifting link 113. Further, the lifting link 113 pushes the lifting rod 114 away from the elastic plate 105, so that the limiting rod 115 disengages from the hole of the elastic plate 105, and then the contact restriction is released. Thus, under the action of the elastic force of the elastic plate 105, the elastic plate 105 pushes the outer mounting ring 104 to slide reversely on the inner mounting ring 103 for resetting. Further, it drives the cross link 117 to slide upward on the grounding box 101 for resetting. During this process, in order to prevent the limiting rod 115 from inserting into some holes of the elastic plate 105, the force of pushing the push rod 118 downward needs to be maintained all the time, and the magnitude of this force can ensure that the limiting rod 115 always disengages from the elastic plate 105. After the elastic plate 105 is reset, release the push rod 118. The limiting rod 115 slides toward the inner mounting ring 103 in the outer mounting ring 104 under the action of the limiting spring 116 until the limiting rod 115 stops sliding after contacting the inner mounting ring 103.

[0035] Embodiment 4:

[0036] As Figure 2 and Figure 5 shown, a plurality of wiring ports 102 are fixedly connected to the grounding box 101. The wiring ports 102 are provided with threads, and the inner mounting ring 103 is also provided with threads. The inner mounting ring 103 is threadedly connected to the wiring port 102, and the inner mounting ring 103 is installed on the wiring port 102 through the threads.

[0037] During use, through the threaded fit between the wiring port 102 and the inner mounting ring 103, the fixing clamp of the present application can be quickly installed and disassembled.

[0038] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention falls within the protection scope of the present invention.

Claims

1. A cable grounding box fixing fixture, comprising a plurality of inner mounting rings (103), each inner mounting ring (103) being fixedly connected to a plurality of elastic plates (105), each elastic plate (105) being rotatably connected to a roller (106), characterized in that: The elastic plate (105) is provided with a plurality of holes, the inner mounting ring (103) is slidably connected to an outer mounting ring (104), the outer mounting ring (104) is slidably connected to a limit rod (115), the limit rod (115) matches the hole on the elastic plate (105), and the outer mounting ring (104) slides on the inner mounting ring (103) to squeeze the plurality of elastic plates (105), so that the rollers (106) on the elastic plates (105) contact the cables, and the friction between the rollers (106) and the cables is increased by the elasticity of the elastic plates (105), thereby fixing the cables, preventing the cables from shaking on the grounding box (101), and facilitating the insertion and removal of the cables.

2. A cable grounding box fixing fixture according to claim 1, characterized in that: A forward sliding block (108) is slidably connected to the sliding groove of the outer mounting ring (104); a first end of a lower connecting rod (109) is rotatably connected to the forward sliding block (108); a second end of the lower connecting rod (109) is rotatably connected to a first end of an upper connecting rod (110); a second end of the upper connecting rod (110) is fixedly connected to a transverse connecting rod (117); and the transverse connecting rod (117) is slidably connected to the grounding box (101).

3. A cable grounding box fixing fixture according to claim 2, characterized in that: Two push rods (118) are rotatably connected to the transverse connecting rod (117), and there is a large friction force between the push rods (118) and the transverse connecting rod (117).

4. A cable grounding box fixing fixture according to claim 1, characterized in that: A lifting slider (112) is slidably connected to the sliding groove of the outer mounting ring (104), and a first end of a lifting connecting rod (113) is rotatably connected to the lifting slider (112), and a second end of the lifting connecting rod (113) is rotatably connected to a first end of a lifting rod (114), and a second end of the lifting rod (114) is fixedly connected to a limiting rod (115), and the second end of the lifting rod (114) is also fixedly connected to a first end of a limiting spring (116), and a second end of the limiting spring (116) is fixedly connected to the outer mounting ring (104).

5. A cable grounding box fixing fixture according to claim 4, characterized in that: The lifting slider (112) is fixedly connected to an arc-shaped push rod (111), and the arc-shaped push rod (111) is slidably connected to the outer mounting ring (104).

6. A cable grounding box fixing fixture according to any one of claims 1 to 5, characterized in that: The grounding box (101) is fixedly connected with a plurality of wiring ports (102), the wiring ports (102) are provided with threads, the inner mounting ring (103) is also provided with threads, the inner mounting ring (103) is threadedly connected to the wiring ports (102), and the inner mounting ring (103) is mounted on the wiring ports (102) via the threads.

Images