A detection device for anti-seismic support

Abstract

The application discloses a detection device for an anti-seismic support, which comprises a support frame, a detection pipeline is arranged in the inside of the support frame, the detection pipeline is installed on the support frame through the anti-seismic support, a lifting base is arranged on one side of the support frame, a lifting frame is installed on the support frame, two electric actuators are rotatably installed on the lifting base, the electric actuators are connected with the detection pipeline through connecting pieces, and the angle between the electric actuators and the detection pipeline can be changed when the lifting frame drives the lifting base and the electric actuators to move up and down. The anti-seismic support of different sizes can be detected through the lifting frame which drives the lifting base and the electric actuators to move up and down, the electric actuators can be rotated and the angle with the detection pipeline can be changed when the lifting base and the electric actuators move up and down, the pressure can be applied to the pipeline from multiple directions, the performance of the anti-seismic support can be judged, and the detection is more comprehensive.

Description

Technical Field

[0001] This invention relates to the field of seismic bracing testing equipment, and more specifically, to a testing device for seismic bracing. Background Technology

[0002] Seismic bracing, firmly connected to the building structure, uses seismic forces as the main load to constrain the lateral and horizontal displacement of pipeline systems, preventing equipment from falling off or being damaged. Its core function is to transform the pipeline system into a whole, enhance shear resistance, and reduce earthquake damage. To ensure the quality of seismic bracing, it is necessary to conduct various tests on it, including deformation testing under rated load, cyclic loading testing, and fatigue testing.

[0003] In existing technologies, when testing seismic bracing, the pipeline is typically installed using the seismic bracing first. Then, the pipeline is subjected to pushing, shaking, and vibration. Pressure and displacement sensors are used to detect the applied force and the distance the pipeline moves, thereby testing the performance of the seismic bracing. However, this method has some problems in use. Typical seismic bracing testing devices can only apply force to the pipeline in the direction directly in front of it. In real life, the impact on the pipeline may come from various directions, requiring the detection of forces from multiple directions to ensure the quality of the seismic bracing. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing testing equipment is inconvenient to apply pressure to pipelines from multiple directions to test the performance of seismic supports, and to design a testing device for seismic supports.

[0005] To achieve the above objectives, the technical solution of the present invention is a detection device for seismic bracing, comprising a support frame, a detection pipe provided inside the support frame, the detection pipe being installed on the support frame via the seismic bracing, a lifting base provided on one side of the support frame, a lifting frame installed on the support frame, the lifting frame being able to drive the lifting base to move up and down, two electric actuators being rotatably installed on the lifting base, the electric actuators being connected to the detection pipe via connectors, and the lifting frame being able to change the angle between the electric actuators and the detection pipe when driving the lifting base and the electric actuators to move up and down.

[0006] Furthermore, the lifting frame includes a fixed frame installed on one side of the support frame. A protective box is installed on the upper end of the fixed frame, and a holding rack is installed at the lower end inside the protective box. A servo motor is installed on the holding rack, and the rotating end of the servo motor extends below the holding rack. A first synchronous pulley is installed on the rotating end of the servo motor, and second synchronous pulleys are provided on both sides of the first synchronous pulley. The first synchronous pulley and the two second synchronous pulleys are connected by a synchronous belt. A ball screw is installed at the lower end of the second synchronous pulley, and screw bearings are installed at both ends of the ball screw. The screw bearing at the upper end of the ball screw is installed on the protective box, and the screw bearing at the lower end of the ball screw is installed on the fixed frame. Screw sleeves are installed on both sides of the lifting base, and the screw sleeves and the ball screw are fitted together. A guide frame is installed on the fixed frame, and the guide frame can ensure the movement direction of the lifting base.

[0007] Furthermore, the guide frame includes multiple guide blocks installed on both sides of the inner surface of the fixed frame, multiple fixed blocks installed on both sides of the lifting base, and multiple guide wheels installed on the fixed blocks, with the guide wheels distributed on both sides of the guide blocks.

[0008] Furthermore, the upper end of the holding rack has a long strip opening, and guide grooves are opened on both sides inside the long strip opening. A movable block is provided inside the long strip opening, and both ends of the movable block extend into the guide grooves. One side surface of the movable block and one side surface inside the long strip opening are connected by a telescopic spring. A limit roller is installed at the lower end of the movable block. The limit roller can push the synchronous belt to one side and make the synchronous belt taut.

[0009] Furthermore, the connector includes a pressure sensor mounted on the electric actuator, a displacement sensor mounted on one side of the pressure sensor, a telescopic adjustment rod mounted on one end of the displacement sensor, a pipe clamp mounted on one end of the telescopic adjustment rod, and the pipe clamp mounted on the outside of the detection pipe.

[0010] Furthermore, the lifting base has a notch to allow the electric actuator to pass through, and a rotating block is provided at the upper end of the lifting base. The electric actuator is installed through the rotating block, and a rotating shaft is installed at both ends of the rotating block. A first rolling bearing is installed at one end of the rotating shaft and is installed on the lifting base. A tensioning frame is provided inside the support frame. The tensioning frame can tighten and loosen the rotating shaft, the telescopic adjustment rod, and the pipe clamp.

[0011] Furthermore, the tensioning frame includes a first arc-shaped clamping block located above and below the rotating shaft. A first electric telescopic rod is installed at one end of the first arc-shaped clamping block. The first electric telescopic rod is installed on the lifting base. A second arc-shaped clamping block is provided above and below the telescopic end of the telescopic adjustment rod. A second electric telescopic rod is provided on one side of the second arc-shaped clamping block and installed at the fixed end of the telescopic adjustment rod. The second electric telescopic rod is connected to the second arc-shaped clamping block through a lifting plate.

[0012] Furthermore, the pipe clamp includes a support block installed on the fixed end of the telescopic adjustment rod, a third arc-shaped clamping block is installed on one side of the support block, a fourth arc-shaped clamping block is provided on one side of the third arc-shaped clamping block, and the fourth arc-shaped clamping block is installed on the fixed block through the third electric telescopic rod.

[0013] Furthermore, a first bevel gear is installed at one end of the rotating shaft, a second bevel gear meshes with the lower end of the first bevel gear, a transmission rod is installed at the lower end of the second bevel gear, two second rolling bearings are installed on the transmission rod, the second rolling bearings are installed on the lifting base, a square transmission hole is opened on the transmission rod, a square rod is installed in the square transmission hole, a reducer is installed below the square rod, the reducer is installed on the support frame, the power output end of the reducer is connected to the lower end of the square rod, a connecting rod is installed at the power input end of the reducer, a third bevel gear is installed at one end of the connecting rod, a fourth bevel gear meshes with one side of the third bevel gear, and the fourth bevel gear is installed on the ball screw.

[0014] Furthermore, the rotating shaft includes a first rotating rod and a second rotating rod. The first rotating rod is mounted on the rotating block, a first rolling bearing is mounted on the first rotating rod, and a first bevel gear is mounted on the second rotating rod. A connecting hole is opened on one side of the second rotating rod, and a connecting shaft is installed at one end of the first rotating rod. One end of the connecting shaft extends into the connecting hole. A first threaded hole is opened on one side of the connecting hole, and a first limiting screw is threadedly connected to the first threaded hole. The lower end of the first limiting screw can pass through the first threaded hole to fix the connecting shaft. A limiting plate is installed on one side of the first rotating rod, and a second threaded hole is opened on the limiting plate. Limiting holes are opened on both sides of the lifting base, and a second limiting screw is provided on one side of the limiting plate. One end of the second limiting screw can pass through the second threaded hole and extend into the limiting hole.

[0015] The beneficial effects of this invention are as follows: The lifting frame can drive the lifting base and the electric actuator to move up and down. First, it can test the seismic bracing of different sizes. Second, when the lifting base and the electric actuator move up and down, the electric actuator can also rotate and change the angle with the test pipe, thereby applying pressure to the pipe from multiple directions. Then, the performance of the seismic bracing can be judged, and the test is more comprehensive. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a detection device for seismic bracing according to the present invention; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 yes Figure 1 A magnified view of a section at point B in the middle; Figure 4 yes Figure 1 A magnified view of a section at point C; Figure 5This is an isometric sectional view of a detection device for seismic bracing as described in this invention; Figure 6 yes Figure 5 A magnified view of a section at point D; Figure 7 This is a schematic diagram of the connection relationship between the timing pulley and the timing belt described in this invention; Figure 8 This is a schematic diagram showing the connection relationship between the limiting roller and the holding rack described in this invention; Figure 9 This is a schematic diagram of the structure of the guide frame described in this invention; Figure 10 This is a schematic diagram of the structure of the rotating shaft described in this invention; Figure 11 This is a schematic diagram showing the connection relationship between the first rotating rod and the second rotating rod of the present invention. Figure 12 This is a schematic diagram showing the positional relationship between the transmission rod and the square rod described in this invention; In the diagram, 1. Support frame; 2. Inspection pipe; 3. Lifting base; 4. Lifting frame; 5. Electric actuator; 6. Fixed frame; 7. Protective box; 8. Container rack; 9. Servo motor; 10. First synchronous pulley; 11. Second synchronous pulley; 12. Synchronous belt; 13. Ball screw; 14. Screw bearing; 15. Screw sleeve; 16. Guide frame; 17. Guide block; 18. Fixed block; 19. Guide wheel; 20. Long opening; 21. Guide groove; 22. Moving block; 23. Telescopic spring; 24. Limit roller; 25. Pressure sensor; 26. Displacement sensor; 27. Telescopic adjusting rod; 28. Pipe clamp; 29. ​​Notch; 30. Rotating block; 31. Rotating shaft; 32. First rolling bearing; 33. Tensioning frame; 34. First 35. Arc-shaped clamping block; 36. First electric telescopic rod; 37. Second arc-shaped clamping block; 38. Lifting plate; 39. Support block; 40. Third arc-shaped clamping block; 41. Fourth arc-shaped clamping block; 42. Third electric telescopic rod; 43. First bevel gear; 44. Second bevel gear; 45. Transmission rod; 46. Second rolling bearing; 47. Square transmission hole; 48. Square rod; 49. Reducer; 50. Connecting rod; 51. Third bevel gear; 52. Fourth bevel gear; 53. First rotating rod; 54. Second rotating rod; 55. Connecting hole; 56. Connecting shaft; 57. First threaded hole; 58. First limiting screw; 59. Limiting plate; 60. Second threaded hole; 61. Limiting hole; 62. Second limiting screw. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0018] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] This invention provides, for example Figure 1-12 The device shown is a testing device for seismic bracing, including a support frame 1, a testing pipe 2 inside the support frame 1, the testing pipe 2 being mounted on the support frame 1 via a seismic bracing, a lifting base 3 on one side of the support frame 1, a lifting frame 4 mounted on the support frame 1, the lifting frame 4 being able to move the lifting base 3 up and down, two electric actuators 5 being rotatably mounted on the lifting base 3, the electric actuators 5 being connected to the testing pipe 2 via connectors, and the lifting frame 4 being able to change the angle between the electric actuators 5 and the testing pipe 2 when moving the lifting base 3 and the electric actuators 5 up and down.

[0020] The process of this device for testing seismic bracing is as follows: When testing seismic bracing, the testing pipe 2 is first installed on the support frame 1 using the seismic bracing. Then, the position of the lifting base 3 and the electric actuator 5 is adjusted using the lifting frame 4. After adjustment, the connector is connected to the testing pipe 2. Then, the electric actuator 5 drives the testing pipe 2 to vibrate and move, thereby enabling multi-faceted testing of the seismic bracing. After testing, the lifting frame 4 drives the lifting base 3 and the electric actuator 5 to move up and down, changing the angle between the electric actuator 5 and the testing pipe 2. Then, the electric actuator 5 is started, allowing for multi-directional vibration or movement of the testing pipe 2, resulting in a more comprehensive testing of the seismic bracing.

[0021] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 4 Included with instruction manual Figure 7The lifting frame 4 includes a fixed frame 6 installed on one side of the support frame 1. A protective box 7 is installed on the upper end of the fixed frame 6. A holding rack 8 is installed at the lower end of the protective box 7. A servo motor 9 is installed on the holding rack 8. The rotating end of the servo motor 9 extends below the holding rack 8. A first synchronous wheel 10 is installed on the rotating end of the servo motor 9. Second synchronous wheels 11 are provided on both sides of the first synchronous wheel 10. The first synchronous wheel 10 and the two second synchronous wheels 11 are connected by a synchronous belt 12. A ball screw 13 is installed at the lower end of the second synchronous wheel 11. Screw bearings 14 are installed at both ends of the ball screw 13. The screw bearings 14 at the upper end of the ball screw 13 are installed on the protective box 7. The screw bearings 14 at the lower end of the ball screw 13 are installed on the fixed frame 6. Screw sleeves 15 are installed on both sides of the lifting base 3. The screw sleeves 15 and the ball screw 13 fit together. A guide frame 16 is installed on the fixed frame 6. The guide frame 16 can ensure the movement direction of the lifting base 3.

[0022] The process of the lifting frame 4 driving the lifting base 3 to move up and down is as follows: the servo motor 9 is started to rotate, the servo motor 10 can drive the first synchronous wheel 10 to rotate, and through the connection of the synchronous belt 12, it can drive the two second synchronous wheels 11 to rotate. The second synchronous wheels 12 can drive the ball screw 13 to rotate. Through the engagement of the ball screw 13 and the screw sleeve 15, the screw sleeve 15 and the lifting base 3 can move up and down. The guide frame 16 can ensure the direction of movement of the lifting base 3.

[0023] Refer to the instruction manual appendix Figure 9 The guide frame 16 includes multiple guide blocks 17 installed on both sides of the inner side of the fixed frame 6. Multiple fixed blocks 18 are installed on both sides of the lifting base 3. Multiple guide wheels 19 are installed on the fixed blocks 18. The guide wheels 19 are distributed on both sides of the guide blocks 17. The movement direction of the lifting base 3 can be guaranteed by the guide wheels 19 and the guide blocks 17.

[0024] Refer to the instruction manual appendix Figure 7 Included with instruction manual Figure 8 The upper end of the holding rack 8 has a long opening 20, and guide grooves 21 are opened on both sides inside the long opening 20. A moving block 22 is provided inside the long opening 20. The two ends of the moving block 22 extend into the guide grooves 21. One side surface of the moving block 22 and one side surface inside the long opening 20 are connected by a telescopic spring 23. A limit roller 24 is installed at the lower end of the moving block 22. The limit roller 24 can push the synchronous belt 12 to one side and make the synchronous belt 12 taut. Under the elastic force of the telescopic spring 23, the limit roller 24 and the moving block 22 can be pushed closer to the synchronous belt 12, thereby tauting the synchronous belt 12. The guide groove 21 can ensure the moving direction of the moving block 22.

[0025] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Included with instruction manual Figure 3The connector includes a pressure sensor 25 mounted on the electric actuator 5. A displacement sensor 26 is mounted on one side of the pressure sensor 25. A telescopic adjustment rod 27 is mounted on one end of the displacement sensor 26, and a pipe clamp 28 is mounted on the other end of the telescopic adjustment rod 27. The pipe clamp 28 is installed on the outside of the detection pipe 2. The pressure sensor 25 can detect the force applied by the electric actuator 5, and the displacement sensor 26 can detect the offset distance, which facilitates the testing of the performance of the seismic support. When the lifting base 3 and the electric actuator 5 move up and down, the distance between the electric actuator 5 and the detection pipe 2 changes. The length of the connector can be adjusted by extending or shortening the telescopic adjustment rod 27, and the detection pipe 2 is connected by the pipe clamp 28, which facilitates the movement of the detection pipe 2.

[0026] Refer to the instruction manual appendix Figure 5 Included with instruction manual Figure 6 The lifting base 3 has a notch 29 for avoiding the electric actuator 5. The upper end of the lifting base 3 is provided with a rotating block 30. The electric actuator 5 is installed through the rotating block 30. The two ends of the rotating block 30 are provided with rotating shafts 31. One end of the rotating shaft 31 is provided with a first rolling bearing 32. The first rolling bearing 32 is installed on the lifting base 3. The inner side of the support frame 1 is provided with a tensioning frame 33. The tensioning frame 33 can tighten and loosen the rotating shaft 31, the telescopic adjustment rod 27, and the pipe clamp 28.

[0027] The rotation process of the electric actuator 5 is as follows: First, the rotating shaft 31, telescopic adjusting rod 27, and pipe clamp 28 are loosened by the adjusting frame 33. When the lifting base 3 drives the electric actuator 5 to move up and down, the pipe clamp 28 can be rotated with the pipe 2 as the center, and the telescopic adjusting rod 27 can be extended or shortened, and the rotating shaft 31 and rotating block 30 can be rotated. Then the angle of the electric actuator 5 can be changed. After that, the rotating shaft 31, telescopic adjusting rod 27, and pipe clamp 28 are tightened by the adjusting frame 33, which can facilitate their stable connection. Then the electric actuator 5 is used to test the anti-seismic support.

[0028] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 3 Instruction manual attached Figure 5 Included with instruction manual Figure 6 The tensioning frame 33 includes a first arc-shaped clamping block 34 located above and below the rotating shaft 31. A first electric telescopic rod 35 is installed at one end of the first arc-shaped clamping block 34. The first electric telescopic rod 35 is installed on the lifting base 3. A second arc-shaped clamping block 36 is provided above and below the telescopic end of the telescopic adjustment rod 27. A second electric telescopic rod 37 is provided on one side of the second arc-shaped clamping block 36 and installed at the fixed end of the telescopic adjustment rod 27. The second electric telescopic rod 37 is connected to the second arc-shaped clamping block 36 through the lifting plate 38.

[0029] The clamping and loosening process of the tensioning frame 33 clamping and loosening the rotating shaft 31 and the telescopic adjusting rod 27 is as follows: When the first electric telescopic rod 35 and the second electric telescopic rod 37 are shortened, the first arc-shaped clamping block 34 and the second arc-shaped clamping block 36 can be moved away from the rotating shaft 31 and the telescopic adjusting rod 27, which makes it easier to loosen the rotating shaft 31 and the telescopic adjusting rod 27. When the first electric telescopic rod 35 and the second electric telescopic rod 37 are extended, the first arc-shaped clamping block 34 and the second arc-shaped clamping block 36 can be moved closer to the rotating shaft 31 and the telescopic adjusting rod 27, which makes it easier to clamp the rotating shaft 31 and the telescopic adjusting rod 27.

[0030] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 2 The pipe clamp 28 includes a support block 39 installed at the fixed end of the telescopic adjustment rod 27. A third arc-shaped clamping block 40 is installed on one side of the support block 39, and a fourth arc-shaped clamping block 41 is provided on one side of the third arc-shaped clamping block 40. The fourth arc-shaped clamping block 41 is installed on the fixed block 18 through the third electric telescopic rod 42.

[0031] The process of clamping and loosening the detection pipe 2 by the pipe clamp 28 is as follows: when the third electric telescopic rod 42 is extended, the fourth arc-shaped clamping block 41 can move away from the third arc-shaped clamping block 40, thereby loosening the detection pipe 2; when the third electric telescopic rod 42 is shortened, the fourth arc-shaped clamping block 41 can move closer to the third arc-shaped clamping block 40, thereby clamping the detection pipe 2.

[0032] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 5 Included with instruction manual Figure 6 A first bevel gear 43 is mounted on one end of the rotating shaft 31. A second bevel gear 44 meshes with the lower end of the first bevel gear 43. A transmission rod 45 is mounted on the lower end of the second bevel gear 44. Two second rolling bearings 46 are mounted on the transmission rod 45. The second rolling bearings 46 are mounted on the lifting base 3. A square transmission hole 47 is opened on the transmission rod 45. A square rod 48 is provided in the square transmission hole 47. A reducer 49 is provided below the square rod 48. The reducer 49 is mounted on the support frame 1. The power output end of the reducer 49 is connected to the lower end of the square rod 48. A connecting rod 50 is mounted on the power input end of the reducer 49. A third bevel gear 51 is mounted on one end of the connecting rod 50. A fourth bevel gear 52 meshes with one side of the third bevel gear 51. The fourth bevel gear 52 is mounted on the ball screw 13.

[0033] The process of the rotating shaft 31 actively rotating is as follows: When the lifting base 3 moves up and down and drives the electric actuator 5 to move up and down, the rotating shaft 31 can be passively driven to rotate through the action of the pipe clamp 28. At this time, the impact direction of the electric actuator 5 on the detection pipe 2 is still aligned with the center of the detection pipe 2. When it is necessary to impact the non-center position of the detection pipe 2, the rotating shaft 31, the telescopic adjustment rod 27, and the pipe clamp 28 are first loosened through the tensioning bracket 33. When the ball screw 13 rotates and drives the lifting base 3 to move up and down, it can drive the fourth bevel gear 52 to rotate. The fourth bevel gear 52 and the third bevel gear 51 mesh, and then the connecting rod 5 can be used to drive the fourth bevel gear 52 to rotate. The power input end of the reducer 49 is rotated by the reducer 49. After being reduced by the reducer 49, the square rod 48, the transmission rod 45, and the second bevel gear 44 are rotated. The second bevel gear 44 and the first bevel gear 43 mesh, which in turn drives the rotating shaft 31 to rotate. The rotating shaft 31 drives the rotating block 30 to rotate. Since the lifting base 3 moves up and down the same distance, the rotating shaft 31 rotates at different angles, which causes the connecting piece to point to the non-center position of the detection pipe 2. Then, the rotating shaft 31, the telescopic adjusting rod 27, and the pipe clamp 28 are clamped by the adjusting frame 33. At this time, the electric actuator 5 is started, which can impact the non-center position of the detection pipe 2.

[0034] Refer to the instruction manual appendix Figure 5 Instruction manual attached Figure 6 Instruction manual attached Figure 10 Included with instruction manual Figure 11 The rotating shaft 31 includes a first rotating rod 53 and a second rotating rod 54. The first rotating rod 53 is mounted on the rotating block 30. A first rolling bearing 32 is mounted on the first rotating rod 53. A first bevel gear 43 is mounted on the second rotating rod 54. A connecting hole 55 is opened on one side of the second rotating rod 54. A connecting shaft 56 is installed at one end of the first rotating rod 53. One end of the connecting shaft 56 extends into the connecting hole 55. A first threaded hole 57 is opened on one side of the connecting hole 55. A first limiting screw 58 is threadedly connected to the first threaded hole 57. The lower end of the first limiting screw 58 can pass through the first threaded hole 57 to fix the connecting shaft 56. A limiting plate 59 is installed on one side of the first rotating rod 53. A second threaded hole 60 is opened on the limiting plate 59. Limiting holes 61 are opened on both sides of the lifting base 3. A second limiting screw 62 is provided on one side of the limiting plate 59. One end of the second limiting screw 62 can pass through the second threaded hole 60 and extend into the limiting hole 61.

[0035] The process of adjusting the various movement modes of the rotating shaft 31 is as follows: Under normal conditions, when the second limiting screw 62 is inserted into the limiting hole 61 through the second threaded hole 60, the electric actuator 5 and the lifting base 3 are in a parallel state. At this time, by moving the lifting base 3 up and down, the horizontal position of the electric actuator 5 can be adjusted. After adjustment, the connecting piece is connected to the detection pipe 2, which facilitates impact on the detection pipe 2 in the horizontal direction. When a passive change in angle is required, the second limiting screw 58 is removed from the limiting hole 61, the first limiting screw 58 is rotated, and the first limiting screw 58 moves outward through the threaded connection between the first limiting screw 58 and the first threaded hole 57. At this time, the first limiting screw 58 will not fix the connecting shaft 56. When the ball screw 13 rotates and drives the second rotating rod 54 to rotate through the reducer 49 and gear transmission, the first rotating rod 53 and rotating block 30 will not rotate. At this time, the rotating shaft 31 can be passively adjusted to rotate. When it is necessary to actively change the angle, the first limiting screw 58 is rotated and connected to the first threaded hole 57 through the thread, so that the first limiting screw 58 moves inward. At this time, the first limiting screw 58 can fix the connecting shaft 56, and then connect the first rotating rod 53 and the second rotating rod 54. When the ball screw 13 rotates and drives the second rotating rod 54 to rotate through the reducer 49 and gear transmission, the first rotating rod 53 and rotating block 30 will rotate, and the angle can be actively adjusted.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A testing device for seismic bracing, comprising a support frame (1), wherein a testing pipe (2) is provided inside the support frame (1), and the testing pipe (2) is mounted on the support frame (1) via a seismic bracing, characterized in that, A lifting base (3) is provided on one side of the support frame (1), and a lifting frame (4) is installed on the support frame (1). The lifting frame (4) can drive the lifting base (3) to move up and down. Two electric actuators (5) are rotatably installed on the lifting base (3). The electric actuators (5) are connected to the detection pipe (2) through a connector. When the lifting frame (4) drives the lifting base (3) and the electric actuators (5) to move up and down, it can change the angle between the electric actuators (5) and the detection pipe (2). The lifting frame (4) includes a fixed frame (6) installed on one side of the support frame (1). A protective box (7) is installed on the upper end of the fixed frame (6). A holding rack (8) is installed at the lower end of the protective box (7). A servo motor (9) is installed on the holding rack (8). The rotating end of the servo motor (9) extends below the holding rack (8). A first synchronous pulley (10) is installed on the rotating end of the servo motor (9). Second synchronous pulleys (11) are provided on both sides of the first synchronous pulley (10). The first synchronous pulley (10) and the two second synchronous pulleys (11) are connected by a synchronous belt (12). The lower end of the two synchronous pulleys (11) is equipped with a ball screw (13), and the two ends of the ball screw (13) are equipped with screw bearings (14). The screw bearings (14) at the upper end of the ball screw (13) are installed on the protective box (7), and the screw bearings (14) at the lower end of the ball screw (13) are installed on the fixed frame (6). Screw sleeves (15) are installed on both sides of the lifting base (3). The screw sleeves (15) and the ball screw (13) fit together. The fixed frame (6) is equipped with a guide frame (16). The guide frame (16) can ensure the moving direction of the lifting base (3). The connector includes a pressure sensor (25) installed on the electric actuator (5), a displacement sensor (26) installed on one side of the pressure sensor (25), a telescopic adjustment rod (27) installed on one end of the displacement sensor (26), a pipe clamp (28) installed on one end of the telescopic adjustment rod (27), and the pipe clamp (28) installed on the outside of the detection pipe (2). The lifting base (3) has a notch (29) to allow the electric actuator (5) to pass through. The upper end of the lifting base (3) is provided with a rotating block (30). The electric actuator (5) is installed through the rotating block (30). The two ends of the rotating block (30) are provided with rotating shafts (31). One end of the rotating shaft (31) is provided with a first rolling bearing (32). The first rolling bearing (32) is installed on the lifting base (3). The inner side of the support frame (1) is provided with a tensioning frame (33). The tensioning frame (33) can tighten and loosen the rotating shaft (31), the telescopic adjustment rod (27), and the pipe clamp (28). The rotating shaft (31) is equipped with a first bevel gear (43) at one end, and a second bevel gear (44) meshes with the lower end of the first bevel gear (43). A transmission rod (45) is installed at the lower end of the second bevel gear (44). Two second rolling bearings (46) are installed on the transmission rod (45). The second rolling bearings (46) are installed on the lifting base (3). A square transmission hole (47) is opened on the transmission rod (45). A square rod (48) is provided in the square transmission hole (47). A reducer (49) is provided below the square rod (48). The reducer (49) is installed on the support frame (1). The power output end of the reducer (49) is connected to the lower end of the square rod (48). A connecting rod (50) is installed at the power input end of the reducer (49). A third bevel gear (51) is installed at one end of the connecting rod (50). A fourth bevel gear (52) meshes with one side of the third bevel gear (51). The fourth bevel gear (52) is installed on the ball screw (13). The rotating shaft (31) includes a first rotating rod (53) and a second rotating rod (54). The first rotating rod (53) is mounted on the rotating block (30), the first rolling bearing (32) is mounted on the first rotating rod (53), and the first bevel gear (43) is mounted on the second rotating rod (54). A connecting hole (55) is opened on one side of the second rotating rod (54), and a connecting shaft (56) is installed at one end of the first rotating rod (53). One end of the connecting shaft (56) extends into the connecting hole (55), and a first threaded hole (56) is opened on one side of the connecting hole (55). 7) The first threaded hole (57) is connected to the first limiting screw (58) by thread. The lower end of the first limiting screw (58) passes through the first threaded hole (57) to fix the connecting shaft (56). A limiting plate (59) is installed on one side of the first rotating rod (53). A second threaded hole (60) is opened on the limiting plate (59). Limiting holes (61) are opened on both sides of the lifting base (3). A second limiting screw (62) is provided on one side of the limiting plate (59). One end of the second limiting screw (62) passes through the second threaded hole (60) and extends into the limiting hole (61).

2. The detection device for seismic bracing according to claim 1, characterized in that, The guide frame (16) includes multiple guide blocks (17) installed on both sides of the inner side of the fixed frame (6), and multiple fixed blocks (18) installed on both sides of the lifting base (3). Multiple guide wheels (19) are installed on the fixed blocks (18), and the guide wheels (19) are distributed on both sides of the guide blocks (17).

3. The detection device for seismic bracing according to claim 1, characterized in that, The upper end of the holding rack (8) has a long strip opening (20), and guide grooves (21) are opened on both sides inside the long strip opening (20). A moving block (22) is provided inside the long strip opening (20). The two ends of the moving block (22) extend into the guide grooves (21). One side surface of the moving block (22) and one side surface inside the long strip opening (20) are connected by a telescopic spring (23). A limit roller (24) is installed at the lower end of the moving block (22). The limit roller (24) can push the synchronous belt (12) to one side and make the synchronous belt (12) taut.

4. The detection device for seismic bracing according to claim 1, characterized in that, The tensioning frame (33) includes a first arc-shaped clamping block (34) located above and below the rotating shaft (31). A first electric telescopic rod (35) is installed at one end of the first arc-shaped clamping block (34). The first electric telescopic rod (35) is installed on the lifting base (3). A second arc-shaped clamping block (36) is provided above and below the telescopic end of the telescopic adjustment rod (27). A second electric telescopic rod (37) is provided on one side of the second arc-shaped clamping block (36) and installed at the fixed end of the telescopic adjustment rod (27). The second electric telescopic rod (37) is connected to the second arc-shaped clamping block (36) through the lifting plate (38).

5. A testing device for seismic bracing according to claim 4, characterized in that, The pipe clamp (28) includes a support block (39) installed on the fixed end of the telescopic adjustment rod (27). A third arc-shaped clamping block (40) is installed on one side of the support block (39), and a fourth arc-shaped clamping block (41) is provided on one side of the third arc-shaped clamping block (40). The fourth arc-shaped clamping block (41) is installed on the fixed block (18) through the third electric telescopic rod (42).

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