An automatic compensation type anti-seismic support

Abstract

The application discloses an automatic compensation type anti-seismic support, which comprises a stand column, a base is arranged at the top end of the stand column, two arc-shaped positioning plates for positioning metal pipes are arranged on the upper surface of the base, arc-shaped embracing ring plates are arranged on the inner walls of the two arc-shaped positioning plates, pressure sensors are fixedly arranged on the inner arc surfaces of the arc-shaped positioning plates, the sensing ends of the pressure sensors are fixedly connected with the outer arc surfaces of the arc-shaped embracing ring plates, and driving mechanisms for driving the two arc-shaped positioning plates to position metal pipes are arranged on the upper surface of the base. The first compensation mechanism and the second compensation mechanism are arranged, so that when the metal pipes are supported by the anti-seismic support, the automatic compensation purpose can be achieved when the position of the metal pipes is deviated due to vibration of the metal pipes or when the thermal expansion and cold contraction phenomenon occurs, and thus the purpose of protecting the surface of the metal pipes is effectively achieved.

Description

Technical Field

[0001] This invention relates to the field of automatic compensation seismic bracing technology, specifically to an automatic compensation seismic bracing system. Background Technology

[0002] Seismic bracing is a system of components or devices that restricts the displacement of auxiliary electromechanical engineering facilities, controls the vibration of these facilities, and transfers loads to the supporting structure. Seismic bracing provides reliable protection for building electromechanical engineering facilities during earthquakes.

[0003] In the prior art, Chinese Patent Publication No. CN110332376B discloses a longitudinal seismic brace for water pipes, including a retaining ring, a horizontal damping frame, and a support frame. Multiple retaining rings are equidistantly arranged on the horizontal damping frame, and support frames are connected to the two ends of the horizontal damping frame away from the retaining rings. The horizontal damping frame includes two end supports and at least one intermediate support, with the at least one intermediate support located in the middle of the end supports. The end supports and intermediate supports are connected by displacement connectors. The support frame includes vertical supports and horizontal oblique supports. This invention features displacement connectors that change the length of the horizontal damping frame, allowing the entire damping bracket to be adjusted according to actual conditions. This enables installation in more environments and allows for adjustment of the distance between pipes, adapting to various situations and significantly expanding the application range of the damping bracket.

[0004] The aforementioned patented technology proposes a longitudinal seismic brace for water pipes. In actual use, it can only improve the application range of the seismic brace according to the actual situation. However, when the pipe is installed outdoors, the pipe is prone to displacement when the fluid flows through or vibrates. That is, the pressure between the positioning ring and the pipe changes. When the pressure between the ring and the pipe reaches the limit that the pipe can withstand, the surface of the pipe is prone to deformation, thus affecting the service life of the pipe. At the same time, under the influence of extreme weather, the pipe will also experience thermal expansion and contraction. When the pipe expands, the pressure between it and the ring increases, causing damage to the pipe. When the pipe contracts, gaps appear between the pipe and the ring, affecting the stability of the pipe.

[0005] To address these shortcomings, this invention proposes an automatic compensation seismic bracing system. Summary of the Invention

[0006] The purpose of this invention is to provide an automatically compensating seismic bracing system to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automatic compensation seismic brace, comprising a column, a base at the top of the column, two arc-shaped positioning plates for positioning metal pipes on the upper surface of the base, an arc-shaped retaining plate on the inner wall of each of the two arc-shaped positioning plates, a pressure sensor fixedly mounted on the inner arc surface of the arc-shaped positioning plate, the sensing end of the pressure sensor being fixedly connected to the outer arc surface of the arc-shaped retaining plate, and a mobile power supply and a PLC controller respectively mounted on the side of the base;

[0008] The upper surface of the base is provided with a driving mechanism for driving two arc-shaped positioning plates to position the metal pipe. The driving mechanism includes a movable plate disposed on the upper surface of the base and a rectangular groove opened on the upper surface of the movable plate. A bidirectional lead screw is rotatably disposed on the inner wall of the rectangular groove, and a first motor for driving the bidirectional lead screw to rotate is disposed on the side of the movable plate. The driving mechanism also includes two symmetrical L-shaped blocks slidably disposed on the inner wall of the rectangular groove and a connecting frame disposed on the upper surface of the L-shaped blocks. The two arc-shaped positioning plates are respectively fixed to the ends of the two connecting frames, and the sides of the two L-shaped blocks are provided with threaded holes that are threaded to the surface of the bidirectional lead screw.

[0009] The upper surface of the base is provided with a first compensation mechanism for adjusting the position of the two arc-shaped positioning plates after the position of the metal pipe is offset. The first compensation mechanism includes a strip groove formed on the upper surface of the base and a slider slidably disposed on the inner wall of the strip groove. The upper surface of the slider is fixedly connected to the lower surface of the moving plate. The first compensation mechanism also includes a transverse threaded column rotatably disposed on the inner wall of the strip groove and a second motor disposed on the side of the base for driving the transverse threaded column to rotate.

[0010] Preferably, the inner wall of the strip groove is fixed with two symmetrical limiting rods, the side of the slider is provided with a threaded hole that is threaded to the surface of the transverse threaded column, and the side of the slider is also provided with a sliding hole that is slidably connected to the surfaces of the two limiting rods respectively.

[0011] Preferably, the upper surface of the L-shaped block is provided with a second compensation mechanism for finely adjusting the position of the two arc-shaped positioning plates according to the thermal expansion and contraction of the metal pipe. The second compensation mechanism includes a concave groove formed on the upper surface of the L-shaped block and a precision lead screw rotatably disposed on the inner wall of the concave groove. The side of the L-shaped block is provided with a precision motor for driving the precision lead screw to rotate, and the side of the L-shaped block is provided with a threaded hole that is threadedly connected to the outer surface of the precision lead screw.

[0012] Preferably, the two pressure sensors, the first motor, the second motor, and the precision motor are all electrically connected to the PLC controller via wires, and the two precision motors are synchronous motors.

[0013] Preferably, the front and back of the movable plate are provided with fixing components for further fixing the metal pipe after clamping and positioning. The fixing components include a winding reel fixed in the middle of the bidirectional lead screw and a pull rope wound inside the winding reel, and the midpoint surface of the pull rope is fixed inside the winding reel by an iron nail.

[0014] Preferably, the fixing component further includes two annular ropes symmetrically sleeved on the outer surface of the metal pipe, and the two ends of the pull rope are respectively fixedly connected to the surfaces of the two annular ropes. The inner wall of the rectangular groove is provided with a through hole extending to the outer surface of the moving plate for the pull rope to slide.

[0015] Preferably, a support plate is fixedly provided at the top of the column, and a plurality of damping shock absorbers are fixedly arranged in a circular array on the upper surface of the support plate, and the damping ends of the plurality of damping shock absorbers are fixedly connected to the lower surface of the base.

[0016] Preferably, the outer surface of the column is provided with a support mechanism to facilitate the support and fixation of the column to the outdoor ground. The support mechanism includes four square fixing cylinders that are rotatably disposed on the four outer surfaces of the column, and a cylindrical cavity opened inside the column. A servo motor is fixedly disposed on the inner top wall of the cylindrical cavity, and a vertical threaded column is fixedly disposed on the output end of the servo motor. The support mechanism also includes a sliding disk that is slidably disposed on the inner wall of the cylindrical cavity, and limiting blocks that are circumferentially arrayed and fixed on the outer surface of the sliding disk and correspond to the four square fixing cylinders. A top rod is rotatably disposed on the surface of the limiting block, and the other end of the top rod is rotatably connected to the outer surface of the square fixing cylinder.

[0017] Preferably, the four outer surfaces of the column are provided with strip-shaped openings that penetrate the cylindrical cavity for sliding of the four limiting blocks, and the upper surface of the sliding disk is provided with a threaded hole that is threaded to the surface of the vertical threaded column. The lower surface of the sliding disk is provided with a tube for fixing the column. The inner bottom wall of the cylindrical cavity is provided with a hole for sliding of the tube, and the bottom end of the tube is an annular knife edge.

[0018] Preferably, the inner wall of the square fixed cylinder is slidably provided with a square internal threaded cylinder, and the bottom end of the square internal threaded cylinder is fixedly provided with a positioning cone. The inner wall of the square fixed cylinder is rotatably provided with an inclined threaded column that is threadedly connected to the inner wall of the square internal threaded cylinder. The outer surface of the square fixed cylinder is rotatably provided with a rotating rod that extends into the interior of the square fixed cylinder. One end of the rotating rod is fixedly provided with a rotating disk for rotating the rotating rod. The other end of the rotating rod and the surface of the inclined threaded column are both fixedly provided with mutually meshing bevel gears.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By setting up a driving mechanism, the present invention enables the bracket to effectively clamp and fix the metal pipe with two arc-shaped clamping plates when supporting the metal pipe. At the same time, during the rotation of the bidirectional screw, the two ring ropes can pull the metal pipe downward and tighten it, thereby improving the stability of the metal pipe after positioning.

[0021] 2. By setting a first compensation mechanism, the present invention enables the seismic support to automatically compensate for the displacement of the metal pipe caused by vibration when supporting the metal pipe. This effectively avoids excessive pressure between the metal pipe and an arc-shaped retaining plate for a long time, thereby effectively protecting the surface of the metal pipe.

[0022] 3. By setting a second compensation mechanism, the present invention enables the support to automatically compensate for thermal expansion and contraction of the metal pipeline, thereby achieving effective protection of the metal pipeline while ensuring its stability.

[0023] 4. By setting up a support mechanism, the present invention can effectively improve the stability of the column after installation when the bracket is installed outdoors. Moreover, during the downward movement of the sliding plate, the insertion cylinder can be driven to extend downward, which effectively ensures the stability of the seismic bracket when installed outdoors. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a side view of the structure of the present invention;

[0026] Figure 3 This is a schematic cross-sectional view of the base and movable plate of the present invention;

[0027] Figure 4 This is a top view of the movable plate structure of the present invention;

[0028] Figure 5 This is a side sectional view of the base and movable plate of the present invention;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of the column of the present invention;

[0030] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0031] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point B.

[0032] In the picture:

[0033] 1. Column; 2. Base; 3. Arc-shaped positioning plate; 4. Arc-shaped retaining plate; 5. Pressure sensor; 6. Power supply; 7. PLC controller; 8. Drive mechanism; 801. Moving plate; 802. Bidirectional lead screw; 803. First motor; 804. L-shaped block; 805. Connecting frame; 9. First compensation mechanism; 901. Slider; 902. Horizontal threaded column; 903. Second motor; 904. Limiting rod; 10. Second compensation mechanism; 1001. Precision lead screw; 1002. Precision motor; 11. Fixing assembly; 11 01. Winding reel; 1102. Pull rope; 1103. Loop rope; 1104. Perforation; 12. Support plate; 13. Damping shock absorber; 14. Support mechanism; 1401. Square fixed cylinder; 1402. Servo motor; 1403. Vertical threaded column; 1404. Sliding disc; 1405. Limiting block; 1406. Top rod; 1407. Strip opening; 1408. Insert cylinder; 1409. Square internal threaded cylinder; 1410. Positioning cone; 1411. Inclined threaded column; 1412. Rotating disc; 1413. Bevel gear. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] Please see Figure 1-3 The present invention provides a technical solution: an automatic compensation seismic bracing, including a column 1, and a base 2 is provided at the top of the column 1;

[0037] The upper surface of the base 2 is provided with two arc-shaped positioning plates 3 for positioning metal pipes. The inner walls of the two arc-shaped positioning plates 3 are provided with arc-shaped retaining plates 4, and pressure sensors 5 are fixedly installed on the inner arc surface of the arc-shaped positioning plates 3. The sensing end of the pressure sensor 5 is fixedly connected to the outer arc surface of the arc-shaped retaining plate 4. A mobile power supply 6 and a PLC controller 7 are respectively provided on the side of the base 2.

[0038] The upper surface of the base 2 is provided with a drive mechanism 8 for driving two arc-shaped positioning plates 3 to position the metal pipe. The drive mechanism 8 includes a movable plate 801 disposed on the upper surface of the base 2 and a rectangular groove opened on the upper surface of the movable plate 801. A bidirectional lead screw 802 is rotatably disposed on the inner wall of the rectangular groove, and a first motor 803 for driving the bidirectional lead screw 802 to rotate is disposed on the side of the movable plate 801. The drive mechanism 8 also includes two symmetrical L-shaped blocks 804 slidably disposed on the inner wall of the rectangular groove, and a connecting frame 805 disposed on the upper surface of the L-shaped blocks 804. The two arc-shaped positioning plates 3 are respectively fixed to the ends of the two connecting frames 805, and threaded holes that are threaded to the surface of the bidirectional lead screw 802 are opened on the side of the two L-shaped blocks 804.

[0039] In this embodiment, by setting a drive mechanism 8, when the bracket supports the metal pipe, it can place the metal pipe above the moving plate 801 and start the first motor 803 to drive the bidirectional lead screw 802 to rotate. The rotation of the bidirectional lead screw 802 drives the two L-shaped blocks 804 to move towards the middle at the same time, thereby driving the two arc-shaped positioning plates 3 and the arc-shaped clamping plate 4 to move towards the middle at the same time, so that the two arc-shaped clamping plates 4 can effectively clamp and fix the metal pipe.

[0040] Example 2

[0041] Based on Example 1, please refer to Figure 3 and Figure 5 In addition, unlike embodiment 1, a support plate 12 is fixedly provided at the top of the column 1, and a number of damping shock absorbers 13 are fixedly provided in a circular array on the upper surface of the support plate 12, and the damping ends of the number of damping shock absorbers 13 are all fixedly connected to the lower surface of the base 2.

[0042] The front and back of the movable plate 801 are provided with fixing components 11 for further fixing the metal pipe after clamping and positioning. The fixing components 11 include a winding reel 1101 fixed in the middle part of the bidirectional lead screw 802, and a pull rope 1102 wound inside the winding reel 1101. The midpoint surface of the pull rope 1102 is fixed inside the winding reel 1101 by iron nails.

[0043] The fixing component 11 also includes two annular ropes 1103 symmetrically sleeved on the outer surface of the metal pipe, and the two ends of the pull rope 1102 are respectively fixedly connected to the surfaces of the two annular ropes 1103. The inner wall of the rectangular groove is provided with a through hole 1104 extending to the outer surface of the moving plate 801 for the pull rope 1102 to slide.

[0044] In this embodiment, by setting the fixing component 11, during the rotation of the bidirectional lead screw 802, the winding reel 1101 can be driven to wind the pull rope 1102 from the middle, making the pull rope 1102 taut. This allows the two loop ropes 1103 to pull the metal pipe downwards and fix it, improving the stability of the metal pipe after positioning. Moreover, during the actual support of the metal pipe, several damping shock absorbers 13 can effectively buffer the vibration generated by the metal pipe, thereby further improving the stability of the metal pipe.

[0045] Example 3

[0046] Based on Examples 1 and 2, please refer to Figure 1-3 Unlike embodiments 1 and 2, the upper surface of the base 2 is provided with a first compensation mechanism 9 for adjusting the position of the two arc-shaped positioning plates 3 after the position of the metal pipe is offset. The first compensation mechanism 9 includes a strip groove opened on the upper surface of the base 2 and a slider 901 slidably disposed on the inner wall of the strip groove. The upper surface of the slider 901 is fixedly connected to the lower surface of the moving plate 801. The first compensation mechanism 9 also includes a transverse threaded column 902 rotatably disposed on the inner wall of the strip groove and a second motor 903 disposed on the side of the base 2 for driving the transverse threaded column 902 to rotate.

[0047] Two symmetrical limiting rods 904 are fixed on the inner wall of the strip groove. The side of the slider 901 is provided with a threaded hole that is threaded to the surface of the transverse threaded post 902. The side of the slider 901 is also provided with sliding holes that are slidably connected to the surfaces of the two limiting rods 904 respectively.

[0048] In this embodiment, by setting a first compensation mechanism 9, when the seismic brace supports the metal pipe, if the vibration of the metal pipe causes a positional shift, the pressure on the side of the metal pipe and one side of the arc-shaped retaining plate 4 increases. At this time, two pressure sensors 5 transmit signals to the PLC controller 7. The PLC controller 7 automatically controls the second motor 903 to rotate. The rotation of the second motor 903 drives the transverse threaded column 902 to rotate. The rotation of the transverse threaded column 902 drives the slider 901 to move. The movement of the slider 901 drives the moving plate 801 to move towards the side with increased pressure, so that the two arc-shaped retaining plates 4 move towards the side with increased pressure at the same time. This gradually balances the pressure between the two arc-shaped retaining plates 4 and the metal pipe. When the values ​​of the two pressure sensors 5 are consistent, the pressure sensors 5 transmit signals to the PLC controller 7. The PLC controller 7 automatically controls the second motor 903 to shut down, achieving the purpose of automatic compensation. This effectively avoids the pressure between the metal pipe and one arc-shaped retaining plate 4 being too high for a long time, thus effectively achieving the purpose of protecting the surface of the metal pipe.

[0049] Example 4

[0050] Based on Examples 1, 2, and 3, please refer to Figure 1-4 Unlike embodiments 1, 2 and 3, the upper surface of the L-shaped block 804 is provided with a second compensation mechanism 10 for finely adjusting the position of the two arc-shaped positioning plates 3 according to the thermal expansion and contraction of the metal pipe. The second compensation mechanism 10 includes a concave groove opened on the upper surface of the L-shaped block 804 and a precision lead screw 1001 rotatably disposed on the inner wall of the concave groove. The side of the L-shaped block 804 is provided with a precision motor 1002 for driving the precision lead screw 1001 to rotate. The side of the L-shaped block 804 is provided with a threaded hole that is threadedly connected to the outer surface of the precision lead screw 1001.

[0051] The two pressure sensors 5, the first motor 803, the second motor 903, and the precision motor 1002 are all electrically connected to the PLC controller 7 via wires, and the two precision motors 1002 are synchronous motors.

[0052] In this embodiment, by setting a second compensation mechanism 10, when the metal pipe experiences thermal expansion under extreme outdoor weather conditions, the pressure of the metal pipe on the two arc-shaped retaining plates 4 increases, causing the values ​​of the two pressure sensors 5 to increase. At this time, the two pressure sensors 5 transmit signals to the PLC controller 7. The PLC controller 7 automatically controls the two precision motors 1002 to start simultaneously, driving the precision lead screw 1001 to rotate. The simultaneous rotation of the two precision lead screws 1001 drives the two arc-shaped positioning plates 3 and the arc-shaped retaining plates 4 to move to both sides simultaneously, causing the values ​​of the pressure sensors 5 to decrease until the values ​​of the pressure sensors 5 return to their original values. At this time, the pressure sensors 5 transmit signals to the PLC controller 7, and the PLC controller 7 automatically controls the precision motors 1002 to shut down. When the metal pipe experiences thermal expansion and contraction, the pressure of the metal pipe on the two arc-shaped retaining plates 4 decreases, causing the values ​​of the two pressure sensors 5 to decrease. At this time, the two pressure sensors 5 transmit signals to the PLC controller 7. The PLC controller 7 automatically controls the two precision motors 1002 to start simultaneously and reverse, driving the two arc-shaped positioning plates 3 and the arc-shaped retaining plates 4 to move towards the center simultaneously. When the values ​​of the pressure sensors 5 increase back to their original values, the pressure sensors 5 transmit signals to the PLC controller 7. The PLC controller 7 automatically controls the precision motors 1002 to close, thus enabling the bracket to automatically compensate for thermal expansion and contraction of the metal pipe, achieving effective protection of the metal pipe and ensuring its stability.

[0053] Example 5

[0054] Based on Examples 1, 2, 3, and 4, please refer to Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 Unlike embodiments 1, 2, 3 and 4, the outer surface of the column 1 is provided with a support mechanism 14 to facilitate the support and fixation of the column 1 to the outdoor ground. The support mechanism 14 includes four square fixing cylinders 1401 that are rotatably disposed on the four outer surfaces of the column 1, and a cylindrical cavity opened inside the column 1. A servo motor 1402 is fixedly disposed on the inner top wall of the cylindrical cavity, and a vertical threaded column 1403 is fixedly disposed at the output end of the servo motor 1402. The support mechanism 14 also includes a sliding disk 1404 that is slidably disposed on the inner wall of the cylindrical cavity, and a limiting block 1405 that is fixedly disposed in a circumferential array on the outer surface of the sliding disk 1404 and corresponds to the four square fixing cylinders 1401. A top rod 1406 is rotatably disposed on the surface of the limiting block 1405, and the other end of the top rod 1406 is rotatably connected to the outer surface of the square fixing cylinder 1401.

[0055] The four outer surfaces of the column 1 are provided with strip-shaped openings 1407 that penetrate the cylindrical cavity for sliding of the four limiting blocks 1405. The upper surface of the sliding disk 1404 is provided with threaded holes that are threaded to the surface of the vertical threaded column 1403. The lower surface of the sliding disk 1404 is fixed with a tube 1408 for fixing the column 1. The inner bottom wall of the cylindrical cavity is provided with holes for sliding of the tube 1408. The bottom end of the tube 1408 is annular knife edge.

[0056] A square internally threaded cylinder 1409 is slidably provided on the inner wall of the square fixed cylinder 1401, and a positioning cone 1410 is fixedly provided at the bottom end of the square internally threaded cylinder 1409. An inclined threaded column 1411 that is threadedly connected to the inner wall of the square internally threaded cylinder 1409 is rotatably provided on the inner wall of the square fixed cylinder 1401. A rotating rod extending into the interior of the square fixed cylinder 1401 is rotatably provided on the outer surface of the square fixed cylinder 1401, and a rotating disk 1412 for rotating the rotating rod is fixedly provided at one end of the rotating rod. A bevel gear 1413 that meshes with each other is fixedly provided at the other end of the rotating rod and on the surface of the inclined threaded column 1411.

[0057] In this embodiment, by setting up a support mechanism 14, when the bracket is installed and used outdoors, the rotation of the servo motor 1402 first drives the vertical threaded column 1403 to rotate. The rotation of the vertical threaded column 1403 drives the sliding disk 1404 to move downward. The downward movement of the sliding disk 1404 drives the four push rods 1406 to push the square fixed cylinder 1401, so that the square fixed cylinder 1401 is opened to a certain tilt angle. Then, the four rotating disks 1412 are rotated respectively. The rotation of the rotating disks 1412, under the action of the two bevel gears 1413, drives the tilting. The rotation of the threaded column 1411 causes the square internal threaded cylinder 1409 to slide outward from the inside of the square fixed cylinder 1401 to a suitable length, thereby installing the column 1 in the designated position. This effectively improves the stability of the column 1 after installation. Furthermore, as the sliding plate 1404 moves downward, it can drive the insertion cylinder 1408 to extend downward, allowing the insertion cylinder 1408 to be inserted into the ground during the installation of the column 1, further improving the stability of the column 1 after installation. This effectively ensures the stability of the seismic brace when installed and used outdoors.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic compensation seismic bracing system, comprising a column (1), characterized in that: The top of the column (1) is provided with a base (2), and the upper surface of the base (2) is provided with two arc-shaped positioning plates (3) for positioning the metal pipe. The inner walls of the two arc-shaped positioning plates (3) are provided with arc-shaped retaining plates (4), and the inner arc surface of the arc-shaped positioning plate (3) is fixedly provided with a pressure sensor (5). The sensing end of the pressure sensor (5) is fixedly connected to the outer arc surface of the arc-shaped retaining plate (4), and the sides of the base (2) are respectively provided with a mobile power supply (6) and a PLC controller (7). The upper surface of the base (2) is provided with a drive mechanism (8) for driving two arc-shaped positioning plates (3) to position the metal pipe. The drive mechanism (8) includes a movable plate (801) provided on the upper surface of the base (2) and a rectangular groove opened on the upper surface of the movable plate (801). A double-acting screw (802) is rotatably provided on the inner wall of the rectangular groove, and a first motor (803) for driving the double-acting screw (802) to rotate is provided on the side of the movable plate (801). The drive mechanism (8) also includes two symmetrical L-shaped blocks (804) slidably provided on the inner wall of the rectangular groove, and a connecting frame (805) provided on the upper surface of the L-shaped blocks (804). The two arc-shaped positioning plates (3) are respectively fixed at the ends of the two connecting frames (805), and the sides of the two L-shaped blocks (804) are provided with threaded holes that are threaded to the surface of the double-acting screw (802). The upper surface of the base (2) is provided with a first compensation mechanism (9) for adjusting the position of the two arc-shaped positioning plates (3) after the position of the metal pipe is offset. The first compensation mechanism (9) includes a strip groove opened on the upper surface of the base (2) and a slider (901) slidably disposed on the inner wall of the strip groove. The upper surface of the slider (901) is fixedly connected to the lower surface of the moving plate (801). The first compensation mechanism (9) also includes a transverse threaded column (902) rotatably disposed on the inner wall of the strip groove and a second motor (903) disposed on the side of the base (2) for driving the transverse threaded column (902) to rotate. The upper surface of the L-shaped block (804) is provided with a second compensation mechanism (10) for finely adjusting the position of the two arc-shaped positioning plates (3) according to the thermal expansion and contraction of the metal pipe. The second compensation mechanism (10) includes a concave groove opened on the upper surface of the L-shaped block (804) and a precision lead screw (1001) rotatably arranged on the inner wall of the concave groove. The side of the L-shaped block (804) is provided with a precision motor (1002) for driving the precision lead screw (1001) to rotate. The side of the L-shaped block (804) is provided with a threaded hole that is threadedly connected to the outer surface of the precision lead screw (1001). The two pressure sensors (5), the first motor (803), the second motor (903) and the precision motor (1002) are all electrically connected to the PLC controller (7) via wires, and the two precision motors (1002) are synchronous motors.

2. The automatic compensation seismic bracing according to claim 1, characterized in that: The inner wall of the strip groove is fixed with two symmetrical limiting rods (904). The side of the slider (901) is provided with a threaded hole that is threaded to the surface of the transverse threaded column (902). The side of the slider (901) is also provided with sliding holes that are slidably connected to the surfaces of the two limiting rods (904).

3. The automatic compensation seismic bracing according to claim 1, characterized in that: The front and back of the movable plate (801) are provided with fixing components (11) for further fixing the metal pipe after clamping and positioning. The fixing components (11) include a winding reel (1101) fixed in the middle part of the bidirectional screw (802) and a pull rope (1102) wound inside the winding reel (1101). The midpoint surface of the pull rope (1102) is fixed inside the winding reel (1101) by iron nails.

4. The automatic compensation seismic bracing according to claim 3, characterized in that: The fixing component (11) also includes two annular ropes (1103) symmetrically sleeved on the outer surface of the metal pipe, and the two ends of the pull rope (1102) are respectively fixedly connected to the surfaces of the two annular ropes (1103). The inner wall of the rectangular groove is provided with a through hole (1104) extending to the outer surface of the moving plate (801) for the pull rope (1102) to slide.

5. An automatic compensation seismic bracing system according to any one of claims 1-4, characterized in that: The top of the column (1) is fixedly provided with a support plate (12), and the upper surface of the support plate (12) is fixedly provided with a number of damping shock absorbers (13) in a circular array. The damping ends of the damping shock absorbers (13) are all fixedly connected to the lower surface of the base (2).

6. An automatic compensation seismic bracing system according to any one of claims 1-4, characterized in that: The outer surface of the column (1) is provided with a support mechanism (14) to facilitate the support and fixation of the column (1) on the outdoor ground. The support mechanism (14) includes four square fixing cylinders (1401) that are rotatably disposed on the four outer surfaces of the column (1) respectively, and a cylindrical cavity opened inside the column (1). A servo motor (1402) is fixedly disposed on the inner top wall of the cylindrical cavity. A vertical threaded column (1403) is fixedly disposed at the output end of the servo motor (1402). The support mechanism (14) also includes a sliding disk (1404) that is slidably disposed on the inner wall of the cylindrical cavity, and a limiting block (1405) that is fixedly disposed in a circumferential array on the outer surface of the sliding disk (1404) and corresponds to the four square fixing cylinders (1401). A top rod (1406) is rotatably disposed on the surface of the limiting block (1405), and the other end of the top rod (1406) is rotatably connected to the outer surface of the square fixing cylinder (1401).

7. The automatic compensation seismic bracing according to claim 6, characterized in that: The four outer surfaces of the column (1) are provided with strip-shaped openings (1407) that penetrate the cylindrical cavity for sliding of the four limiting blocks (1405). The upper surface of the sliding disk (1404) is provided with a threaded hole that is threaded to the surface of the vertical threaded column (1403). The lower surface of the sliding disk (1404) is provided with a tube (1408) for fixing the column (1). The inner bottom wall of the cylindrical cavity is provided with a hole for sliding of the tube (1408). The bottom end of the tube (1408) is an annular knife edge.

8. The automatic compensation seismic bracing according to claim 7, characterized in that: The inner wall of the square fixed cylinder (1401) is slidably provided with a square internal thread cylinder (1409), and the bottom end of the square internal thread cylinder (1409) is fixedly provided with a positioning cone (1410). The inner wall of the square fixed cylinder (1401) is rotatably provided with an inclined threaded column (1411) that is threadedly connected to the inner wall of the square internal thread cylinder (1409). The outer surface of the square fixed cylinder (1401) is rotatably provided with a rotating rod that extends into the interior of the square fixed cylinder (1401), and one end of the rotating rod is fixedly provided with a rotating disk (1412) for rotating the rotating rod. The other end of the rotating rod and the surface of the inclined threaded column (1411) are both fixedly provided with mutually meshing bevel gears (1413).

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