Cable wiring anti-pulling device

Abstract

The utility model discloses a cable wiring anti-pulling device, which belongs to the technical field of electric power engineering, and comprises a force bearing mechanism, the force bearing mechanism comprises a fixed force bearing base, the force bearing base is positioned beside a wiring component for connecting two cable breaking heads of a cable, and the force bearing base is provided with a force transmission clamp for clamping the cable breaking head on the pulled side. After the force transmission clamp clamps the cable, the cable pulling force is equivalently transmitted under the friction effect of the cable and the force transmission clamp through the interaction of the force transmission clamp and the cable, and then the cable pulling force is efficiently transmitted to the stress base through the hard connection of the force transmission clamp and the stress base. Therefore, the force bearing point of the pulling force of the cable is changed from the connecting position of the cable and the wiring component to the position of the cable and the force transmission clamp, the effects of isolation and pulling prevention are achieved, and secondary fracture of the connecting position of the cable and the wiring component is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power engineering, in particular to a cable wiring anti-pulling device. Background Art

[0002] In the industrial field, when a cable (electrical cable / optical cable) breaks, an intermediate wiring component (connector or small intermediate junction box) needs to be made to reconnect the breakpoint. In this scenario, due to specific working conditions, there may be a large pulling force on both sides of the joint. If the pulling force on both sides cannot be effectively isolated from the wiring component, the connection between the cable and the wiring component is prone to secondary breakage. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned technical problems and provide a cable wiring anti-pull device, which enables the cable pulling force to be equivalently transmitted under the friction effect between the cable and the force transmission clamp, and then efficiently transmits the cable pulling force to the force-bearing base through the force transmission clamp, so that the force point of the cable pulling force is changed from the connection between the cable and the wiring component to the cable and the force transmission clamp, thereby avoiding secondary fracture at the connection between the cable and the wiring component.

[0004] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model discloses a cable wiring anti-pull device, including a force-bearing mechanism, the force-bearing mechanism includes a fixed force-bearing base, the force-bearing base is located beside the wiring component connecting the two broken ends of the cable, and the force-bearing base is provided with a force transmission clamp for clamping the broken end on the tension side.

[0005] Preferably, it comprises a load-bearing mechanism, wherein one of the broken wire ends is fixed on the load-bearing foundation, the other broken wire end is clamped by the force-transmitting clamp, and the load-bearing base is fixed on the installation foundation.

[0006] Preferably, it comprises a load-bearing mechanism, wherein one of the broken wire heads is fixed on a load-bearing base, the other broken wire head is clamped by the force transmission clamp, the load-bearing base is connected to the load-bearing base by a load-bearing rope, and the load-bearing rope is parallel to the tension direction of the broken wire head.

[0007] Preferably, two of the force-bearing mechanisms are included, the two broken wire ends are clamped by force transmission clamps of the two force-bearing mechanisms respectively, and the force-bearing bases of the two force-bearing mechanisms are respectively fixed on corresponding force-bearing foundations.

[0008] Preferably, two of the load-bearing mechanisms are included, and the two broken wire heads are clamped by the force transmission clamps of the two load-bearing mechanisms respectively. The two load-bearing mechanisms are interconnected by a load-bearing rope, and the load-bearing rope is parallel to the tension direction of the broken wire heads.

[0009] Preferably, a line connecting the positions of the force-bearing base and the wiring member is parallel to an extending direction of the cable.

[0010] Preferably, a rope length adjustment mechanism is provided on the load-bearing rope.

[0011] Preferably, the force transmission clamp includes an end clamp and a plurality of middle clamps, the end clamps are provided at both ends of the force-bearing base along the extension direction of the cable, the center line of the clamps of the end clamps at both ends of the force-bearing base is located in the extension direction of the cable, the plurality of middle clamps are located between the two ends of the force-bearing base along the extension direction of the cable, the plurality of middle clamps are arranged at intervals along the center line of the clamps of the end clamps, and the plurality of middle clamps are arranged on both sides of the center line of the clamps of the end clamps.

[0012] Preferably, the force transmission clamp comprises two end clamps and two middle clamps, the end clamps are straight pipe clamps, the middle clamps are bent pipe clamps, and the inner bent side of the bent pipe clamp faces the center line of the clamp openings of the end clamps.

[0013] Preferably, a flame-retardant rubber inner bushing is provided between the straight pipe clamp and the disconnecting head, and between the bent pipe clamp and the disconnecting head.

[0014] Compared with the prior art, the utility model has achieved the following technical effects:

[0015] In the cable wiring anti-pull device of the utility model, the cable pulling force is equivalently transmitted under the friction effect of the cable and the force transmission clamp through the interaction between the force transmission clamp and the cable, and then the cable pulling force is efficiently transmitted to the force bearing base through the hard connection between the force transmission clamp and the force bearing base, so that the force bearing point of the cable pulling force is changed from the connection between the cable and the wiring component to the cable and the force transmission clamp, which plays an isolation and anti-pull role and avoids secondary fracture at the connection between the cable and the wiring component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the load-bearing mechanism in the cable wiring anti-pull device;

[0018] Figure 2 It is a schematic diagram of the structure of the load-bearing mechanism from a top view;

[0019] Figure 3 It is a front view structural diagram of the load-bearing mechanism;

[0020] Figure 4 This is a structural schematic diagram of the cable wiring anti-pull device in the first usage scenario;

[0021] Figure 5 This is a structural schematic diagram of the cable wiring anti-pull device in the second usage scenario;

[0022] Figure 6 This is a structural schematic diagram of the cable wiring anti-pull device in the third usage scenario;

[0023] Figure 7 This is a structural schematic diagram of the cable wiring anti-pull device in the fourth use scenario;

[0024] Figure 8 It is a three-dimensional structural schematic diagram of a flame retardant rubber inner bushing for a straight pipe clamp;

[0025] Fig. 9 A schematic diagram of the side structure of a flame retardant rubber inner bushing for a straight pipe clamp;

[0026] Fig.10 It is a front view structural schematic diagram of a flame retardant rubber inner bushing for a straight pipe clamp;

[0027] Fig.11 A schematic diagram of the top view of the flame retardant rubber inner bushing for a straight pipe clamp;

[0028] Fig.12 A schematic diagram of the three-dimensional structure of a flame-retardant rubber inner bushing for a pipe bending clamp;

[0029] Fig.13 A schematic diagram of the side structure of a flame retardant rubber inner bushing for a pipe bending clamp;

[0030] Fig.14 It is a front view structural schematic diagram of a flame retardant rubber inner bushing for a bent pipe clamp;

[0031] Fig.15 This is a schematic diagram of the top view of the flame retardant rubber inner bushing for the elbow clamp.

[0032] Explanation of the reference numerals: 1. load-bearing base; 2. straight pipe clamp; 3. bent pipe clamp; 4. hinge; 5. bolt; 6. pull ring; 7. load-bearing rope; 8. rope length adjustment mechanism; 9. flame-retardant rubber inner bushing; 10. wiring component; 11. cable; 12. installation foundation; 13. load-bearing foundation. DETAILED DESCRIPTION

[0033] 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.

[0034] This embodiment provides a cable wiring anti-pull device, such as Figures 1 to 15 As shown, the force-bearing mechanism includes a force-bearing base 1, and a force-transmitting clamp is arranged on the force-bearing base 1. When in use, after the two broken ends at the breakpoint of the cable 11 are connected through the wiring member 10 (wiring box or wiring connector), the force-bearing base 1 needs to be set beside the wiring member 10, and then the force-bearing base 1 is fixed there to make it immovable, and then the force-transmitting clamp is used to clamp the broken end of the cable 11 on the tension side, and the pulling force on the cable 11 is transmitted from the connection between the broken end of the cable 11 and the force-transmitting clamp to the force-transmitting clamp, and then transmitted from the force-transmitting clamp to the force-bearing base 1, and the force-bearing base 1 bears the pulling force, so that the tension point of the cable 11 is changed from the connection between the broken end of the cable 11 and the wiring member 10 to the connection between the broken end of the cable 11 and the force-transmitting clamp, thereby relieving the pulling force at the connection between the broken end and the wiring member 10, and avoiding secondary breakage at the connection between the broken end and the wiring member 10.

[0035] When used in practice, different numbers of load-bearing mechanisms need to be used according to different tension conditions. Currently, there are mainly two different tension conditions:

[0036] 1. Single-sided tension: Among the two disconnected ends of the cable 11, one disconnected end has a load-bearing foundation 13 as a connection foundation, while the other disconnected end does not have a load-bearing foundation 13. The disconnected end without a load-bearing foundation 13 is the side receiving the garbage. At this time, only one load-bearing mechanism is needed to connect the disconnected end without a load-bearing foundation 13, that is, a load-bearing base 1 is arranged beside the wiring member 10, and the load-bearing base 1 is fixed there, and then a force transmission clamp is used to clamp the disconnected end on the tension side of the cable 11.

[0037] 2. Double-sided tension: The two disconnected ends of the cable 11 have no load-bearing foundation 13 as a connection basis. At this time, both disconnected ends are disconnected ends on the tension side, and two load-bearing mechanisms are required to connect the two disconnected ends respectively. Two load-bearing bases 1 are arranged on opposite sides of the wiring component 10, and the two load-bearing bases 1 are fixed. The force transmission clamps on the two load-bearing bases 1 clamp the two disconnected ends respectively.

[0038] There are two scenarios for unilateral tension, one of which is that the load-bearing base 1 itself has an installation foundation 12 (defined as scenario one), and the other is that there is no installation foundation 12 (defined as scenario two). The load-bearing mechanism is used differently in different scenarios:

[0039] Scenario 1: In this embodiment, if Figures 1 to 15 As shown, it includes a load-bearing mechanism, one of the broken ends of the cable 11 is fixed on the load-bearing foundation 13, the other broken end is clamped by the force transmission clamp, and the force-bearing base 1 is fixed on the installation base 12, and the wiring member 10 is located between the force-bearing base 1 and the load-bearing base 13. When the broken end of the cable 11 without the load-bearing base 13 is pulled, the pulling point will be mainly concentrated at the clamping point of the force transmission clamp and the cable 11, and then transmitted by the force transmission clamp to the force-bearing base 1, and finally transmitted to the installation base 12, and the installation base 12 bears the tension, and the pulling force on the cable 11 is equivalent to the force transmission clamp-force-bearing base 1-installation base 12, which effectively isolates the pulling force from the wiring member 10. The fixing method of the load-bearing base 1 and the installation base 12 can be riveting, bolting, welding or strong bonding. The specific fixing method can be determined according to the actual material of the installation base 12. If the installation base 12 is a metal base, bolting and welding can be used. If the installation base 12 is a wooden base or a concrete base, riveting, bolting and welding can be used. If the installation base 12 is a ceramic base, a glass base, etc., bolting or strong bonding can be used.

[0040] Scenario 2: In this embodiment, if Figures 1 to 15 As shown, it includes a load-bearing mechanism, one of the broken ends of the cable 11 is fixed on the load-bearing foundation 13, and the other broken end is clamped by a force transmission clamp. Since the load-bearing base 1 has no installation foundation 12, the load-bearing base 1 is connected to the load-bearing foundation 13 through a load-bearing rope 7. The load-bearing rope 7 is parallel to the tension direction of the broken end. The tension is transmitted to the load-bearing base 1 through the load-bearing rope 7 and the broken end, and the load-bearing base 1 is fixed at the setting position, and the state of the load-bearing base 1 being fixed is completed. At this time, the wiring component 10 is located between the load-bearing base 1 and the load-bearing foundation 13. When the broken end of the cable 11 without the load-bearing foundation 13 is pulled, the pulling point will be mainly concentrated at the clamping point of the force transmission clamp and the cable 11, and then transmitted to the load-bearing base 1 by the force transmission clamp, and finally transmitted to the load-bearing foundation 13 by the load-bearing rope 7. The load-bearing foundation 13 bears the tension, so that the pulling force is transmitted across the wiring component 10, and then the pulling force is completely isolated from the wiring component 10. The load-bearing rope 7 needs to be made of a material with strong tensile strength, such as a steel wire rope, a polyester rope, a dacron rope, and the like.

[0041] Double-sided tension is also divided into two scenarios, one of which is that the load-bearing base 1 itself has an installation foundation 12 (defined as scenario three), and the other is that there is no installation foundation 12 (defined as scenario four). The load-bearing mechanism is used differently in different scenarios:

[0042] Scenario 3: In this embodiment, if Figures 1 to 15 As shown, it includes two load-bearing mechanisms, and the two broken ends are clamped by the force-transmitting clamps of the two load-bearing mechanisms respectively. The force-bearing bases 1 of the two force-bearing mechanisms are respectively fixed on the corresponding installation bases 12, and the wiring member 10 is located between the two force-bearing bases 1. When the two broken ends of the cable 11 are pulled, the pulling points will mainly be concentrated on the two broken ends and the clamping points of the respective force-transmitting clamps, and then transmitted to the force-bearing base 1 by the force-transmitting clamp, and finally transmitted to the installation base 12, and the installation base 12 bears the pulling force. The pulling force on the cable 11 is equivalent to the force-transmitting clamp-force-bearing base 1-installation base 12, and the pulling force is effectively isolated from the wiring member 10. The fixing method of the load-bearing base 1 and the installation base 12 can be riveting, bolting, welding or strong bonding. The specific fixing method can be determined according to the actual material of the installation base 12. If the installation base 12 is a metal base, bolting and welding can be used. If the installation base 12 is a wooden base or a concrete base, riveting, bolting and welding can be used. If the installation base 12 is a ceramic base, a glass base, etc., bolting or strong bonding can be used.

[0043] Scenario 4: In this embodiment, if Figures 1 to 15 As shown, it includes two load-bearing mechanisms, and the two broken wire heads are clamped by the force transmission clamps of the two load-bearing mechanisms respectively. The load-bearing base 1 lacks the installation foundation 12 for fixing, so the two load-bearing mechanisms are interconnected through the load-bearing rope 7, and the load-bearing rope 7 is parallel to the tension direction of the broken wire heads. The tension transmitted to the load-bearing base 1 by the two broken wire heads is combined with the load-bearing rope 7 between the two load-bearing bases 1 to complete the fixation of the two load-bearing bases 1, so that the load-bearing bases 1 are in a fixed state, and the wiring component 10 is located between the two load-bearing bases 1. When the cable 11 is pulled, the pulling point will be mainly concentrated at the clamping point of the force transmission clamp and the broken wire head, and then transmitted to the load-bearing base 1 by the force transmission clamp, and finally the tension is borne by the load-bearing rope 7, so that the pulling force is transmitted across the wiring component 10, and then the pulling force is completely isolated from the wiring component 10. The load-bearing rope 7 needs to be made of a material with strong tensile strength, such as steel wire rope, polyester rope, dacron rope, etc.

[0044] In order to optimize the force direction, in this embodiment, Figures 1 to 15 As shown, the position line of the force-bearing base 1 and the wiring member 10 is parallel to the extension direction of the cable 11, so that the line connecting the force-bearing base 1, the wiring member 10, and the force-bearing base 1 (or the bearing base 13) is located in the pulling direction of the cable 11.

[0045] In this embodiment, Figures 1 to 15 As shown, a rope length adjustment mechanism 8 is provided on the load-bearing rope 7 for adjusting the length of the load-bearing rope 7 to match wiring members 10 of different sizes.

[0046] Further, in this embodiment, Figures 1 to 15 As shown, the two ends of the force-bearing base 1 are respectively provided with pull rings 6 for connecting with the force-bearing rope 7. When in use, the connecting line of the two ends of the pull ring 6 of the force-bearing base 1 is parallel to the extension direction of the cable 11, that is, one end of the force-bearing base 1 with the pull ring 6 is close to the wiring member 10, and the other end is far away from the wiring member 10. Preferably, at least two pull rings 6 are provided at each end of the force-bearing base 1, and when there are an even number of pull rings 6, the even number of pull rings 6 are symmetrically arranged along the center line of the force-bearing base 1 parallel to the extension direction of the cable 11. When there are an odd number of pull rings, one of them is located on the center line of the force-bearing base 1 parallel to the extension direction of the cable 11, and the remaining ones are symmetrically arranged along the center line of the force-bearing base 1 parallel to the extension direction of the cable 11.

[0047] Further, in this embodiment, Figures 1 to 15 As shown, the force-bearing base 1 is a rectangular plate, the force-transmitting fixture is installed on the plate surface of the rectangular plate, and the length direction of the rectangular plate is parallel to the extension direction of the cable 11. Of course, the above rectangular plate is only a reference setting method, which does not mean that the force-bearing base 1 can only adopt a rectangular plate, and a circular plate, a polygonal plate, or even a special-shaped plate can also be adopted.

[0048] In this embodiment, Figures 1 to 15 As shown, the force transmission clamp includes an end clamp and a middle clamp. The force-bearing base 1 is provided with end clamps at both ends along the extension direction of the cable 11, and at least one end clamp is provided at each end. The center line of the clamps of the end clamps at both ends of the force-bearing base 1 is located in the extension direction of the cable 11. There are multiple middle clamps, and the multiple middle clamps are located between the two ends of the force-bearing base 1 along the extension direction of the cable 11. The multiple middle clamps are arranged along the spacing of the center line of the clamps of the end clamps, and the multiple middle clamps are arranged on both sides of the center line of the clamps of the end clamps. The middle clamp makes the cable 11 present multiple bending sections, which can increase the clamping degree of the cable 11 and the force transmission clamp as a whole.

[0049] Further, in this embodiment, Figures 1 to 15As shown, the force transmission clamp includes two end clamps and two middle clamps. The end clamp is a straight tube clamp 2, and the middle clamp is a curved tube clamp 3. The two straight tube clamps 2 are arranged at the two ends of the force-bearing base 1 along the extension direction of the cable 11. The two curved tube clamps 3 are located between the two straight tube clamps 2, and the inner curved side of the curved tube clamp 3 faces the center line of the clamp mouth of the end clamp. The curved tube clamp 3 is arranged so that the broken wire head clamped by the force transmission clamp is in an S-bend posture. By utilizing the characteristics of the cable 11 itself, when the cable 11 is in a bent posture, it will automatically restore the straight posture under the action of the pulling force. The change trend of the force posture, under the premise of the fixed limit and unit contact area of ​​the force transmission clamp, will increase the friction between the force transmission clamp and the cable 11, thereby enhancing the pulling force transmission efficiency. Of course, in addition to the clamp form, other forms can also be adopted, such as clamps such as splints and clamps.

[0050] Further, in this embodiment, Figures 1 to 15 As shown, a flame retardant rubber inner bushing 9 is provided between the straight tube clamp 2 and the disconnected wire head, and between the bent tube clamp 3 and the disconnected wire head, to prevent the force transmission clamp from damaging the cable 11, and to achieve insulation protection of the contact surface between the cable 11 and the force transmission clamp. The flame retardant rubber inner bushing 9 that can be deformed by force is used to perform equivalent deformation with the contact surface of the cable 11 under the force of the force transmission clamp, thereby increasing the relative contact area between the force transmission clamp and the cable 11, thereby increasing the friction force and strengthening the force conduction. Strengthen the relative friction between the force transmission clamp and the cable 11.

[0051] Further, in this embodiment, Figures 1 to 15 As shown, the straight tube clamp 2 and the curved tube clamp 3 each include two half-piece clamps, one side of the two half-piece clamps is hinged by a hinge 4, and the other side of the two half-piece clamps is fixed by a bolt 5. The corresponding flame-retardant rubber inner bushing 9 can also be composed of two half-piece bushings, which is convenient for sleeves on the cable 11.

[0052] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A cable wiring anti-pull device, characterized in that: It comprises a load-bearing mechanism, which comprises a fixed load-bearing base, which is located beside a wiring component connecting two broken ends of the cable, and a force transmission clamp for clamping the broken end on the tension side is provided on the load-bearing base.

2. A cable wiring anti-pull device according to claim 1, characterized in that: It comprises a load-bearing mechanism, wherein one of the broken wire heads is fixed on a load-bearing foundation, the other broken wire head is clamped by the force transmission clamp, and the load-bearing base is fixed on a mounting foundation.

3. A cable wiring anti-pull device according to claim 1, characterized in that: It comprises a load-bearing mechanism, wherein one of the broken wire heads is fixed on a load-bearing base, the other broken wire head is clamped by the force transmission clamp, the load-bearing base is connected to the load-bearing base through a load-bearing rope, and the load-bearing rope is parallel to the tension direction of the broken wire head.

4. A cable wiring anti-pull device according to claim 1, characterized in that: It comprises two load-bearing mechanisms, the two broken wire ends are clamped by the force transmission clamps of the two load-bearing mechanisms respectively, and the load-bearing bases of the two load-bearing mechanisms are respectively fixed on the corresponding load-bearing foundations.

5. A cable wiring anti-pull device according to claim 1, characterized in that: It comprises two load-bearing mechanisms, two broken wire heads are clamped by the force transmission clamps of the two load-bearing mechanisms respectively, the two load-bearing mechanisms are interconnected by load-bearing ropes, and the load-bearing ropes are parallel to the tension direction of the broken wire heads.

6. A cable wiring anti-pull device according to any one of claims 1 to 5, characterized in that: A line connecting the positions of the force bearing base and the wiring member is parallel to an extending direction of the cable.

7. A cable wiring anti-pull device according to claim 3 or 5, characterized in that: The load-bearing rope is provided with a rope length adjusting mechanism.

8. A cable wiring anti-pull device according to any one of claims 1 to 5, characterized in that: The force transmission clamp includes an end clamp and a plurality of middle clamps. The end clamps are provided at both ends of the force-bearing base along the extension direction of the cable. The center line of the clamps of the end clamps at both ends of the force-bearing base is located in the extension direction of the cable. The plurality of middle clamps are located between the two ends of the force-bearing base along the extension direction of the cable. The plurality of middle clamps are arranged at intervals along the center line of the clamps of the end clamps, and the plurality of middle clamps are arranged on both sides of the center line of the clamps of the end clamps.

9. A cable wiring anti-pull device according to claim 8, characterized in that: The force transmission clamp comprises two end clamps and two middle clamps, the end clamps are straight pipe clamps, the middle clamps are bent pipe clamps, and the inner bent side of the bent pipe clamp faces the center line of the clamp openings of the end clamps.

10. A cable wiring anti-pull device according to claim 9, characterized in that: A flame retardant rubber inner bushing is provided between the straight pipe clamp and the disconnecting head, and between the bent pipe clamp and the disconnecting head.

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