An anti-seismic support device for cables of a structure

Abstract

The present invention relates to the technical field of cable erection in structures, and particularly relates to an anti-seismic support device for cables in structures, which comprises a hoisting device, an upper support device, and a lower support device; an arc-shaped groove is provided on the upper surface of the support plate of the upper support device, and U-shaped frames are symmetrically fixed at both left and right ends; the lower support device comprises two triangular support frames, a connecting plate, a vertical arc-shaped rod, and a horizontal arc-shaped rod; a chain A and a chain B are connected between the upper support device and the lower support device; the hoisting device comprises a hose clamp, an inclined rod is fixedly connected to the upper end of the hose clamp, a vertical rod is hinged to the lower part of the inclined rod, and an elastic ring is provided between the vertical rod and the inclined rod. The anti-seismic effect of the whole device is enhanced by three non-rigid connection structures of the present invention. The cable protection pipe is not directly fixed to the support device, and the upper support device can slightly shake relative to the lower support device in multiple directions. When subjected to the shock force of an earthquake shock wave, the damage to the cable protection pipe and the cables inside can be greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cable erection in structures, and particularly to an anti-seismic support device for cables in structures. Background Art

[0002] In structures such as utility tunnels, various cables need to be installed and erected. To avoid interference between various cables, cable ducts are used to separate them from each other, and then the cable ducts are fixed to brackets. When erecting cables, seismic resistance needs to be considered. Especially in recent years, earthquakes have occurred frequently around the world, and anti-seismic brackets are increasingly in demand. Since anti-seismic brackets can provide corresponding safety protection during earthquakes, cable anti-seismic brackets have been widely used. Currently, most anti-seismic brackets on the market use shock-absorbing springs to achieve the shock-absorbing effect. Usually, one end of the shock-absorbing device is connected to the top wall of the structure, and the other end is connected to the bracket for fixing the cables. The cable ducts are hoisted by the shock-absorbing device to achieve the anti-seismic effect. However, the current anti-seismic effect of this method is not ideal, and the cable ducts are fixed to the brackets. When the brackets are shaken and displaced, the cable ducts fixed on them and the cables inside will be damaged. Therefore, it is necessary to propose a new cable anti-seismic support device to solve the above problems. Summary of the Invention

[0003] The problem to be solved by the present invention is to overcome the deficiencies of the background art and provide an anti-seismic support device for cables in structures.

[0004] The present invention is realized by the following technical solutions:

[0005] An anti-seismic support device for cables of a structure, which sequentially includes a hoisting device, an upper support device, and a lower support device from top to bottom; the upper support device includes a horizontal support plate, and several parallel arc-shaped grooves are provided on the upper surface of the support plate. Cable protection pipes are placed in the arc-shaped grooves, and U-shaped frames are symmetrically fixed downward at both the left and right ends of the support plate; the lower support device includes two triangular support frames, and the two triangular support frames are fixedly connected together through a connecting plate. Vertically arc-shaped rods are symmetrically fixed upward on the upper surfaces of the two triangular support frames, and a horizontally arc-shaped rod is connected between the two vertically arc-shaped rods; chains A are fixedly provided downward at the four corners of the support plate, and the other ends of the chains A are fixed on the upper surface of the triangular support frame. The chains A are in a vertically taut state; the upper ends of the vertically arc-shaped rods are fixedly provided with chains B downward, and the other ends of the chains B are fixed on the U-shaped frames. The chains B are in a vertically taut state; the hoisting device includes a hose clamp that sleeves the cable protection pipe. The upper end of the hose clamp is fixedly connected to an inclined rod, the lower part of the inclined rod is hinged to a vertical rod, the upper end of the vertical rod is fixed with a horizontal plate, a circular hole is provided in the upper part of the inclined rod, a small short plate is fixedly provided on the upper side surface of the vertical rod, and a small long plate is fixedly provided outward on the small short plate. A rectangular groove is formed between the small long plate and the small short plate. The rectangular groove is higher than the circular hole, and an elastic ring is provided between the rectangular groove and the circular hole. The elastic ring passes through the circular hole and sleeves on the vertical rod, and the upper part of the elastic ring is located in the rectangular groove. The elastic ring is in its original length state.

[0006] Preferably, the included angle between the inclined rod and the vertical direction is 10-30°.

[0007] Preferably, an inverted U-shaped groove is provided in the lower part of the vertical rod, the lower part of the inclined rod is located in the inverted U-shaped groove, corresponding through holes are provided on the vertical rod at the bottom of the inverted U-shaped groove and the lower part of the inclined rod, and a rotating shaft passes through the through holes to connect the lower part of the inclined rod and the vertical rod together; the middle of the rotating shaft is smooth, and threads are provided at both ends. The inclined rod can rotate around the rotating shaft, and nuts are provided at the two outer ends of the rotating shaft.

[0008] Preferably, the lower end of the inclined rod is welded to the hose clamp.

[0009] In the present invention, the anti-seismic effect of the whole device is enhanced through three non-rigid connection structures. The cable protection pipe is not directly fixed to the support device, and the upper support device can slightly shake in multiple directions relative to the lower support device. When subjected to the shock force of an earthquake shock wave, the damage to the cable protection pipe and the internal cable can be greatly reduced; the hoisting device of the present invention not only has a shock-absorbing function, but can also temporarily hoist the cable protection pipe when the upper support device and the lower support device are damaged, preventing the cable protection pipe from falling and being damaged. Description of the Drawings

[0010] Figure 1 is a structural schematic diagram of the present invention;

[0011] Figure 2 is a structural schematic diagram of the present invention from another angle;

[0012] Figure 3 Schematic structural diagram after the installation of the present invention;

[0013] Figure 4 Schematic structural diagram of the hoisting device of the present invention;

[0014] Figure 5 Schematic structural diagram of the upper support device and the lower support device of the present invention;

[0015] Figure 6 Enlarged side view structural diagram of the vertical rod of the present invention;

[0016] Figure 7 Enlarged structural diagram of the connection between the vertical rod and the inclined rod of the present invention.

[0017] In the figure, 1 is the hoisting device, 2 is the hose clamp, 3 is the inclined rod, 4 is the vertical rod, 5 is the horizontal plate, 6 is the round hole, 7 is the small short plate, 8 is the small long plate, 9 is the rectangular groove, 10 is the elastic ring, 11 is the inverted U-shaped groove, 12 is the rotating shaft, 13 is the nut, 14 is the upper support device, 15 is the support plate, 16 is the arc-shaped groove, 17 is the cable protection pipe, 18 is the U-shaped frame, 19 is the lower support device, 20 is the triangular support frame, 21 is the connecting plate, 22 is the vertical arc-shaped rod, 23 is the horizontal arc-shaped rod, 24 is the chain A, 25 is the chain B, 26 is the expansion bolt, 27 is the side wall, 28 is the top wall. Detailed implementation manners

[0018] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] The present invention includes three major parts, which sequentially include a hoisting device 1, an upper support device 14 and a lower support device 19 from top to bottom. The following will introduce the three major parts in detail one by one:

[0020] The upper support device 14 includes a horizontal support plate 15. The support plate 15 is a thick rectangular parallelepiped plate. A plurality of parallel arc-shaped grooves 16 are provided on the upper surface of the support plate 15. The cable protection pipe 17 is placed in the arc-shaped groove 16, and the cable is placed in the cable protection pipe 17. The arc-shaped groove 16 is equivalent to the pipe pillow of the cable protection pipe 17. Preferably, the diameter of the arc-shaped groove 16 is the same as the outer diameter of the cable protection pipe 17. U-shaped frames 18 are symmetrically fixed downward on the lower surfaces of the left and right ends of the support plate 15. The left and right directions mentioned here refer to the length direction of the installed cable protection pipe 17.

[0021] The lower support device 19 includes two identical triangular support frames 20 on the left and right. The two triangular support frames 20 are fixedly connected together through a connecting plate 21. Vertically curved rods 22 are symmetrically and fixedly arranged upward on the upper surfaces of the two triangular support frames 20. The vertically curved rods 22 are located at the middle position below the support plate 15. The two vertically curved rods 22 are located between the two U-shaped frames 18, and the upper ends of the vertically curved rods 22 are located in the U-shaped space inside the U-shaped frames 18. A horizontally curved rod 23 is connected between the two vertically curved rods 22. The horizontally curved rod 23 is connected to the upper parts of the vertically curved rods 22. The horizontally curved rod 23 and the two vertically curved rods 22 form an H shape.

[0022] The four corners of the upper support device 14 and the lower support device 19 are connected together through chain A 24. That is, chain A 24 is fixedly arranged downward at the four corners of the support plate 15. The lower ends of the chain A 24 are fixedly arranged on the upper surfaces of the triangular support frames 20. The lengths of the four chain A 24 are equal. Under normal use conditions, the chain A 24 is in a vertical state and is in a taut state. The vertically curved rod 22 and the U-shaped frame 18 are connected together through chain B 25. That is, a chain B 25 is fixedly arranged downward at the upper end end of the vertically curved rod 22. The other end of the chain B 25 is fixedly arranged in the middle of the inner surface of the U-shaped frame 18. The lengths of the two chain B 25 are equal. Similarly, under normal use conditions, the chain B 25 is in a vertical state and is in a taut state. The upper support device 14 and the lower support device 19 are connected together through chain A 24 and chain B 25, so that a balance structure is formed between the upper support device 14 and the lower support device 19, and the support plate 15 is in a horizontal state. Here, the working principle is simply analyzed. The chain A 24 at the four corners will limit the upward movement of the upper support device 14, and the chain B 25 will limit the downward movement of the upper support device 14. Therefore, the chain A 24 and the chain B 25 make the upper support device 14 and the lower support device 19 form a balance structure in the up and down directions. At the same time, the chain A 24 at the four corners makes the upper support device 14 in a horizontal balance state. The balance structure formed by the upper support device 14 and the lower support device 19 allows the upper support device 14 to slightly shake relative to the lower support device 19 in multiple directions, which is very effective in buffering the impact force of an earthquake. Therefore, the seismic effect of the support device of the present invention is significantly better than that of the existing seismic support.

[0023] The hoisting device 1 includes a hose clamp 2 that sleevs the cable protection tube 17. An inclined rod 3 is welded to the upper end of the hose clamp 2. The included angle between the inclined rod 3 and the vertical direction is preferably 10-30°. A round hole 6 is provided in the upper part of the inclined rod 3. A vertical rod 4 is hinged to the lower part of the inclined rod 3. The vertical rod 4 extends vertically upward. A horizontal plate 5 is fixedly arranged at the upper end of the vertical rod 4. The horizontal plate 5 is used to fix the hoisting device 1 on the top wall 28 of the installation position. The preferred hinge structure here is: an inverted U-shaped groove 11 is provided in the lower part of the vertical rod 4, as shown in the attached Figure 6As shown, the opening of the inverted U-shaped groove 11 faces downward, and the lower part of the inclined rod 3 is located inside the inverted U-shaped groove 11. The lower part of the inclined rod 3 can move inside the inverted U-shaped groove 11. Corresponding perforations are provided on the vertical rod 4 at the lower part of the inverted U-shaped groove 11 and on the lower part of the inclined rod 3. A rotating shaft 12 passes through the perforations of the vertical rod 4 and the inclined rod 3 to connect the lower parts of the inclined rod 3 and the vertical rod 4 together. The middle of the used rotating shaft 12 is smooth, and threads are provided at both ends. In this way, the inclined rod 3 can rotate around the rotating shaft 12, and nuts 13 are provided on the threaded parts at both ends of the rotating shaft 12 passing through the vertical rod 4.

[0024] A small short board 7 is fixed to the upper side surface of the vertical rod 4. A small long board 8 is fixed outward close to the small short board 7. The length of the small long board 8 is greater than the length of the small short board 7, and the bottom surface of the small long board 8 is flush with the bottom surface of the small short board 7. Therefore, a rectangular groove 9 is formed between the small long board 8, the small short board 7 and the vertical rod 4, as shown in the appendix Figure 7 As shown, the position of the rectangular groove 9 is higher than the position of the round hole 6. An inclined elastic ring 10 is provided between the rectangular groove 9 and the round hole 6. The elastic ring 10 passes through the round hole 6 and is sleeved on the rectangular groove 9 at the vertical rod 4. Under normal use conditions, the elastic ring 10 is in its original length state, that is, the elastic ring 10 is neither stretched nor loose.

[0025] The hoisting device 1 of the present invention has two functions. One is to have a shock-absorbing function, and the other is to have a hoisting function. If the cable protection pipe 17 rotates or shakes due to vibration, at this time, the inclined rod 3 will rotate or shake together with the cable protection pipe 17, and relative rotation will occur between the inclined rod 3 and the vertical rod 4. The elastic ring 10 can be stretched or compressed, so it has a certain shock-absorbing function; if the upper support device 14 and the lower support device 19 are damaged by vibration, the hoisting device 1 can also temporarily hoist the cable protection pipe 17 through the vertical rod 4 to prevent the cable protection pipe 17 from falling and being damaged.

[0026] When the present invention is used, first, the triangular support frame 20 of the lower support device 19 is fixed to the side wall 27 of the structure through expansion bolts 26 to make the support plate 15 in a horizontal state. Then, the cable protection pipe 17 is sleeved with a hose clamp 2 and placed in the arc-shaped groove 16. Finally, the horizontal plate 5 of the hoisting device 1 is fixed to the top wall 28 of the structure through expansion bolts 26, as shown in the appendix Figure 3 As shown. When in use, the number and spacing of the devices of the present invention can be specifically selected according to the length of the cable. The spacing is generally not greater than 1.5 - 2 meters.

[0027] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the above embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the present invention.

Claims

1. An anti-seismic support device for cables of a structure, characterized in that: From top to bottom, it successively includes a hoisting device (1), an upper support device (14), and a lower support device (19); the upper support device (14) includes a horizontal support plate (15), and several parallel arc-shaped grooves (16) are provided on the upper surface of the support plate (15). A cable protection pipe (17) is placed in the arc-shaped groove (16). U-shaped frames (18) are symmetrically and downwardly fixed at the left and right ends of the support plate (15); the lower support device (19) includes two triangular support frames (20), and the two triangular support frames (20) are fixedly connected together through a connecting plate (21). Vertically arc-shaped rods (22) are symmetrically and upwardly fixed on the upper surfaces of the two triangular support frames (20), and a horizontally arc-shaped rod (23) is connected between the two vertically arc-shaped rods (22); chains A (24) are fixed downward at the four corners of the support plate (15), and the other ends of the chains A (24) are fixed on the upper surfaces of the triangular support frames (20), and the chains A (24) are in a vertically taut state; the upper ends of the vertically arc-shaped rods (22) are fixed with chains B (25) downward, and the other ends of the chains B (25) are fixed on the U-shaped frames (18), and the chains B (25) are in a vertically taut state; the hoisting device (1) includes a hose clamp (2) that sleeves the cable protection pipe (17). The upper end of the hose clamp (2) is fixedly connected to an inclined rod (3). The lower part of the inclined rod (3) is hinged to a vertical rod (4). A horizontal plate (5) is fixed at the upper end of the vertical rod (4). A circular hole (6) is provided in the upper part of the inclined rod (3). A small short plate (7) is fixed on the upper side surface of the vertical rod (4). A small long plate (8) is fixed outward on the small short plate (7). A rectangular groove (9) is formed between the small long plate (8) and the small short plate (7). The rectangular groove (9) is higher than the circular hole (6). An elastic ring (10) is provided between the rectangular groove (9) and the circular hole (6). The elastic ring (10) passes through the circular hole (6) and sleeves on the vertical rod (4). The upper part of the elastic ring (10) is located in the rectangular groove (9), and the elastic ring (10) is in its original length state.

2. The anti-seismic support device for the cable of the structure according to claim 1, characterized in that: The included angle between the inclined rod (3) and the vertical direction is 10 - 30°.

3. The anti-seismic support device for the cable of the structure according to claim 1, characterized in that: An inverted U-shaped groove (11) is provided in the lower part of the vertical rod (4). The lower part of the inclined rod (3) is located in the inverted U-shaped groove (11). Corresponding through holes are provided on the vertical rod (4) at the bottom of the inverted U-shaped groove (11) and on the lower part of the inclined rod (3). A rotating shaft (12) passes through the through holes to connect the lower parts of the inclined rod (3) and the vertical rod (4) together; the middle of the rotating shaft (12) is smooth and the two ends are provided with threads. The inclined rod (3) can rotate around the rotating shaft (12), and nuts (13) are provided at the two outer ends of the rotating shaft (12).

4. The anti-seismic support device for the cable of the structure according to claim 1, characterized in that: The lower end of the inclined rod (3) is welded to the hose clamp (2).

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