A multifunctional damper detection and loading device

Abstract

The present invention proposes a multifunctional damper detection and loading device, which relates to the field of damper testing technology. The multifunctional damper detection and loading device includes a base, a frame, a support beam, a swinger and a loader. The support beam is horizontally arranged in the frame, and the swinger is respectively connected to the top of the frame and the support beam, so as to realize the reciprocating motion of the support beam. The loader includes a dynamic actuator and a static actuator, and the dynamic actuator and the static actuator are respectively arranged on both sides of the frame. The middle part of the support beam is rotatably connected with a direction conversion member, and the direction conversion member includes two rotating plates symmetrically arranged on both sides of the support beam, and the rotating plates are rotatably connected with the support beam, and the rotating plates can be hinged with the dynamic actuator and the static actuator respectively. The present invention can realize damper detection and loading in multiple states, and can realize dynamic loading and static loading of wall-type dampers. At the same time, the dynamic actuator is in the form of a double-rod, and can also complete the loading of the shaft-type damper on the outside of the frame.

Description

Technical Field

[0001] The invention relates to the technical field of damper testing, and in particular to a multifunctional damper testing and loading device. Background Art

[0002] A damper is a device that provides resistance to movement and dissipates the energy of movement. Using damping to absorb energy and reduce shock is not a new technology. Various dampers have long been used in aerospace, aviation, military, guns, automobiles and other industries to reduce vibration and dissipate energy. Since the 1970s, people have gradually transferred these technologies to structural engineering such as buildings, bridges, and railways, and their development has been very rapid. In particular, the hydraulic viscous damper, which has a history of more than 50 years, has undergone a long process of a large number of experiments, strict reviews, repeated demonstrations, and especially earthquake tests before being accepted by the structural engineering community in the United States. The damper is a device that can quickly stop the movable part of the instrument at a stable deflection position. In seismic instruments, the damper is used to absorb the inherent vibration energy of the vibration system, and its damping force is generally proportional to the speed of the vibration system. The damper plays an important role in compensating for the small friction and air resistance in the vibration pickup pendulum system and improving the frequency response.

[0003] The transmission damper detection loading equipment can generally only be used to detect one damper state, such as using a dynamic actuator or a static actuator to detect the damper. As a result, the dynamic damper detection loading equipment has a relatively single function, and one detection can only be completed by one device, and the detection effect is not high. Summary of the invention

[0004] The object of the present invention is to provide a multifunctional damper detection and loading device, which can complete both the loading detection of the damper by a dynamic actuator and the loading detection of the damper by a static actuator, and has more functions and higher detection efficiency.

[0005] The embodiment of the present invention is achieved as follows:

[0006] The embodiment of the present application provides a multifunctional damper detection loading device, comprising a base, a frame, a joist, a swinger and a loader, wherein the frame is arranged on the base, the joist is horizontally arranged in the frame, and the swinger is respectively connected to the top of the frame and the joist to realize the reciprocating motion of the joist;

[0007] The loader includes a dynamic actuator and a static actuator, which are respectively arranged on both sides of the frame, and the dynamic actuator and the static actuator correspond to the two ends of the support beam respectively. A direction conversion member is rotatably connected to the middle part of the support beam, and the direction conversion member includes two rotating plates symmetrically arranged on both sides of the support beam, the rotating plates are rotatably connected to the support beam, and the rotating plates can be hinged with the dynamic actuator and the static actuator respectively.

[0008] In some embodiments of the present invention, the above-mentioned swing device includes two swing arms, which are symmetrically arranged on the frame, one end of the swing arm is rotatably connected to the frame, and the other end is rotatably connected to the supporting beam.

[0009] In some embodiments of the present invention, a connection hole is provided at the free end of the rotating plate, and hinge supports are provided at the output ends of the dynamic actuator and the static actuator, and the hinge supports can be connected to the corresponding rotating plates respectively.

[0010] In some embodiments of the present invention, a first movable component is arranged below the hinge support, the first movable component includes a slider and a slide rail, the hinge support is fixed on the slider, the slider is arranged on the slide rail, and the slider can slide freely along the slide rail.

[0011] In some embodiments of the present invention, the frame includes a top beam and two support arms, the two support arms are vertically symmetrically arranged, and two ends of the top beam are respectively connected to the two support arms.

[0012] In some embodiments of the present invention, a reinforcement structure is arranged between the support arm and the top beam, and the reinforcement structure includes a triangular rib plate, which is located at the corner of the top beam and the support arm, and the triangular rib plate is fixedly connected to the top beam and the support arm respectively.

[0013] In some embodiments of the present invention, a storage frame is provided on the above-mentioned joist, and the storage frame is fixed at the center point of the joist, and the center point of the storage frame coincides with the center point of the joist.

[0014] In some embodiments of the present invention, a support seat is provided on the base on the side of the dynamic actuator, the support seat is located on the outside of the frame, a support rod is provided on the support seat, the support rod corresponds to the rear end output shaft of the dynamic actuator, and the two ends of the damper can be connected to the support rod and the rear end output shaft respectively.

[0015] In some embodiments of the present invention, a pressure sensor is provided on the rear output shaft.

[0016] In some embodiments of the present invention, the pressure sensor is connected to a microcontroller.

[0017] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0018] The present invention provides a multifunctional damper detection and loading device, including a base, a frame, a joist, a swinger and a loader. The base is used to carry the frame and support the frame. The frame provides a swinging platform for the swinger to facilitate the action of the swinger. The swinger is used to make the joist swing freely, and the joist completes the reciprocating motion loading of the damper during the swinging process. The loader is used to drive the joist to do reciprocating motion, so that the joist drives the damper loading motion. The frame is arranged on the base, and the joist is horizontally arranged in the frame. The horizontal arrangement of the joist can ensure that the reciprocating motion of the joist is not affected by its own gravity. The swinger is connected to the top of the frame and the joist respectively, and is used to realize the reciprocating motion of the joist. The swinger provides a fulcrum for the joist by connecting to the top of the frame. After the swinger is connected to the joist, the joist can make the joist do arc-shaped reciprocating motion during the motion process, simulating the action process of the damper. The loader includes a dynamic actuator and a static actuator, which are respectively arranged on both sides of the frame, and the dynamic actuator and the static actuator correspond to the two ends of the joist. The dynamic actuator can output a dynamic load to the joist to complete the dynamic load test of the damper. The static actuator can output a static load to the joist to complete the forward static load test of the damper. The static actuator is arranged on the side of the frame, and the frame is used as a reverse force carrier, which can effectively protect the static actuator. The middle part of the joist is rotatably connected with a direction conversion member, and the direction conversion member includes two rotating plates symmetrically arranged on both sides of the joist, the rotating plates are rotatably connected to the joist, and the rotating plates can be hinged with the dynamic actuator and the static actuator respectively. One end of the rotating plate is arranged in the middle part of the joist, and the rotating plate is rotatably connected to the joist through the rotating plate, so that the rotating plate can be rotated to the two ends of the joist, and after rotating to the two ends of the joist, it can be connected with the dynamic actuator or the static actuator.

[0019] Therefore, the multifunctional damper detection and loading device can complete both the loading detection of the damper by the dynamic actuator and the loading detection of the damper by the static actuator, and has more functions and higher detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0022] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0023] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0024] Figure 4 A schematic diagram of a three-dimensional structure of an embodiment of the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of point C in the middle.

[0026] Icons: 1-static actuator, 2-support arm, 3-top beam, 4-triangular rib plate, 5-swing arm, 6-storage frame, 7-support beam, 8-rotating plate, 9-dynamic actuator, 901-output end, 902-rear end output shaft, 10-support seat, 11-base, 12-hinge support, 13-first moving part, 14-second moving part, 15-slider, 16-slide rail, 17-pressure sensor, 18-support rod, 19-connecting hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example

[0034] Please refer to Figure 1 and Figure 4 , Figure 1 FIG. 1 is a schematic diagram showing a structure of an embodiment of the present invention. Figure 4 Schematic diagram of the three-dimensional structure of an embodiment of the present invention. This embodiment provides a multifunctional damper detection and loading device, including a base 11, a frame, a support beam 7, a swinger and a loader. The base 11 is used to carry the frame and support the frame. The frame provides a swinging platform for the swinger to facilitate the movement of the swinger. The swinger is used to allow the support beam 7 to swing freely, and the support beam 7 completes the reciprocating motion loading of the damper during the swinging process. The loader is used to drive the support beam 7 to reciprocate, so that the support beam 7 drives the damper loading movement.

[0035] In this embodiment, the frame is arranged on the base 11, and the joist 7 is arranged horizontally in the frame. The horizontal arrangement of the joist 7 can ensure that the reciprocating motion of the joist 7 is not affected by its own gravity. The oscillator is connected to the top of the frame and the joist 7, respectively, to realize the reciprocating motion of the joist 7. The oscillator provides a fulcrum for the joist 7 by connecting to the top of the frame. After the oscillator is connected to the joist 7, the joist 7 can make an arc-shaped reciprocating motion during the motion process, simulating the action process of the damper.

[0036] In this embodiment, the loader includes a dynamic actuator 9 and a static actuator 1, which are respectively arranged on both sides of the frame, and the dynamic actuator 9 and the static actuator 1 correspond to the two ends of the joist 7 respectively. The dynamic actuator 9 can output a dynamic load to the joist 7 to complete the dynamic load test of the damper. The static actuator 1 can output a static load to the joist 7 to complete the forward static load test of the damper. The static actuator 1 is arranged on the side of the frame, and the frame is used as the reverse force carrier, which can effectively protect the static actuator 1.

[0037] In this embodiment, the middle of the joist 7 is rotatably connected with a direction conversion member, which includes two rotating plates 8 symmetrically arranged on both sides of the joist 7. The rotating plates 8 are rotatably connected to the joist 7, and the rotating plates 8 can be respectively hinged to the dynamic actuator 9 and the static actuator 1. One end of the rotating plate 8 is arranged in the middle of the joist 7, and the rotating plate 8 is rotatably connected to the joist 7 through the rotating plate 8, so that the rotating plate 8 can be rotated to both ends of the joist 7, and can be connected to the dynamic actuator 9 or the static actuator 1 after rotating to both ends of the joist 7.

[0038] Therefore, the multifunctional damper detection and loading device can complete both the loading detection of the damper by the dynamic actuator 9 and the loading detection of the damper by the static actuator 1, and has more functions and higher detection efficiency.

[0039] Please refer to Figure 1 and Figure 4 In some implementations of the present embodiment, the above-mentioned swinger includes two swing arms 5, and the two above-mentioned swing arms 5 are symmetrically arranged on the above-mentioned frame. One end of the above-mentioned swing arm 5 is rotatably connected to the above-mentioned frame, and the other end is rotatably connected to the above-mentioned supporting beam 7.

[0040] In this embodiment, the swing device comprises two swing arms 5, and the two swing arms 5 can move synchronously, so that the support beam 7 swings along with the swing arms 5 during the movement, thereby performing reciprocating motion.

[0041] Please refer to Figure 2 and Figure 5 In some implementations of the present embodiment, a connecting hole 19 is provided at the free end of the rotating plate 8, and output ends 901 of the dynamic actuator 9 and the static actuator 1 (in the present embodiment, the output ends of the dynamic actuator and the static actuator are both marked with 901) are provided with hinge supports 12, and the hinge supports 12 can be connected to the corresponding rotating plates 8 respectively.

[0042] In this embodiment, the connection hole 19 provided at the free end of the rotating plate 8 is rotatably connected to the hinge support 12 of the output end 901, so that the dynamic actuator 9 or the static actuator 1 can be detachably connected to the rotating plate 8. In this embodiment, the hinge support 12 includes two ears, and the ears are provided with docking holes corresponding to the connection holes 19. The connection between the hinge support 12 and the rotating plate 8 can be achieved by inserting a connecting pin into the docking hole and the connecting hole 19 in sequence.

[0043] Please refer to Figure 2 and Figure 5 In some implementations of the present embodiment, a first movable component 13 is arranged below the hinge support 12, and the first movable component 13 includes a slider 15 and a slide rail 16, the hinge support 12 is fixed on the slider 15, the slider 15 is arranged on the slide rail 16, and the slider 15 can slide freely along the slide rail 16.

[0044] In this embodiment, the first moving component 13 is respectively arranged below the hinge support 12 corresponding to the dynamic actuator 9 and the static actuator 1. When one of the two actuators is used, the corresponding output end 901 will move axially, thereby driving the hinge support 12 to move, so that the slider 15 below the hinge support 12 can move on the slide rail 16. Thus, the first moving component 13 plays a guiding role to prevent the joist 7 from having an offset movement during the reciprocating movement. If the joist 7 has an offset movement during the reciprocating movement, it will greatly affect the accuracy of the test.

[0045] Please refer to Figure 1 and Figure 4 In some implementations of the present embodiment, the frame includes a top beam 3 and two support arms 2 , the two support arms 2 are vertically symmetrically arranged, and both ends of the top beam 3 are respectively connected to the two support arms 2 .

[0046] In this embodiment, the two support arms 2 are used to support the top beam 3, the top beam 3 is a connecting component of the swing arm 5, and the two swing arms 5 are symmetrically arranged on the top beam 3 and rotatably connected to the top beam 3. The cantilever beam structure of the top beam 3 can increase the bearing capacity of the top beam 3.

[0047] Please refer to Figure 1 and Figure 4 In some implementations of the present embodiment, a reinforcement structure is provided between the support arm 2 and the top beam 3, and the reinforcement structure includes a triangular rib plate 4, and the triangular rib plate 4 is located at the corner of the top beam 3 and the support arm 2, and the triangular rib plate 4 is fixedly connected to the top beam 3 and the support arm 2 respectively.

[0048] In this embodiment, the above reinforcement structure can effectively improve the temperature resistance of the frame and prevent the frame from being unstable and damaged. The above triangular ribs 4 are connected to the top beam 3 and the adjacent support arms 2 at the corners, so that the top beam 3 and the support arms 2 meet the triangular structure stability principle and enhance stability.

[0049] Please refer to Figure 1 and Figure 4 In some implementations of this embodiment, a placement frame 6 is provided on the joist 7, and the placement frame 6 is fixed at the center point of the joist 7, and the center point of the placement frame 6 coincides with the center point of the joist 7. In this embodiment, the placement frame 6 is used to place the damper to be tested, and the damper can move with the placement frame 6 in the placement frame 6.

[0050] Please refer to Figure 1 and Figure 4 In some implementations of the present embodiment, a support seat 10 is provided on the base 11 on the side of the dynamic actuator 9, and the support seat 10 is located outside the frame. A support rod 18 is provided on the support seat 10, and the support rod 18 corresponds to the rear end output shaft 902 of the dynamic actuator 9, and the two ends of the damper can be connected to the support rod 18 and the rear end output shaft 902 respectively.

[0051] In this embodiment, the support seat 10 can correspond to the rear output shaft 902 of the dynamic actuator 9. By connecting the two ends of the damper to the support rod 18 on the support seat 10 and the rear output shaft 902 of the dynamic actuator 9, the dynamic axial loading test of the damper can be completed outside the frame when the dynamic actuator 9 is in motion. Thus, a function of dynamic axial loading test of the damper can be added, making this embodiment more functional.

[0052] Please refer to Figure 3 In this embodiment, the rear output shaft 902 is provided with a hinge support 12 identical to the output end 901 of the dynamic actuator 9, and a second movable component 14 is provided below the hinge support 12, and the second movable component 14 is identical to the first movable component 13. The slide rail 16 of the second movable component 14 is provided on the base 11, and the hinge support 12 of the rear output shaft 902 is provided on a slider 15 corresponding to the second movable component 14, and the slider 15 can slide freely on the corresponding slide rail 16. The second movable component 14 can also play a guiding role to prevent the damper from having eccentricity problems during dynamic axial loading tests.

[0053] Please refer to Figure 3 In some implementations of this embodiment, a pressure sensor 17 is provided on the rear output shaft 902. The pressure sensor 17 can detect the change in the shaft end pressure of the rear output shaft 902, thereby obtaining the detection data of the damper.

[0054] In some implementations of this embodiment, the pressure sensor 17 is connected to a microcontroller (not shown in the figure). After the pressure data detected by the pressure sensor 17 is transmitted to the microcontroller, the microcontroller can analyze the pressure detection information. In this embodiment, the microcontroller is connected to a display module, and the display module can display the detection data analyzed by the microcontroller.

[0055] When the dynamic load test of the damper is required, the damper is placed in the storage frame 6, and the rotating plate 8 is rotated to the side of the dynamic actuator 9, and the rotating plate 8 is connected to the hinge support 12 on the side of the dynamic actuator 9. Then the dynamic actuator 9 is started, and the dynamic actuator 9 outputs a dynamic load, and drives the rotating plate 8 to reciprocate through the corresponding hinge support 12, so that the rotating plate 8 drives the storage frame 6 on the support beam 7 to reciprocate, thereby loading the dynamic load on the damper, and performing dynamic load test loading on the damper.

[0056] Similarly, when the static load test of the damper is required, the damper is placed in the storage frame 6, and the rotating plate 8 is rotated to the side of the static actuator 1, and the rotating plate 8 is connected to the hinge support 12 on the side of the static actuator 1. Then the static actuator 1 is started, and the static actuator 1 outputs a static load, and the rotating plate 8 is driven to reciprocate through the corresponding hinge support 12, so that the rotating plate 8 drives the storage frame 6 on the support beam 7 to reciprocate, thereby loading the static load on the damper, and performing static load test on the damper.

[0057] At the same time, when dynamic axial loading of the damper is required, the two ends of the damper can be respectively connected to the support rod 18 and the rear end output shaft 902 of the dynamic actuator 9, and the dynamic actuator 9 can be started at the same time to complete the dynamic axial loading of the damper.

[0058] In summary, the embodiment of the present invention provides a multifunctional damper detection and loading device, including a base 11, a frame, a joist 7, a swinger and a loader, wherein the base 11 is used to carry the frame and support the frame. The frame provides a swinging platform for the swinger to facilitate the action of the swinger. The swinger is used to allow the joist 7 to swing freely, and the joist 7 completes the reciprocating motion loading of the damper during the swinging process. The loader is used to drive the joist 7 to do reciprocating motion, so that the joist 7 drives the damper loading motion. The frame is arranged on the base 11, and the joist 7 is horizontally arranged in the frame. The horizontal arrangement of the joist 7 can ensure that the reciprocating motion of the joist 7 is not affected by its own gravity. The swinger is connected to the top of the frame and the joist 7, respectively, to realize the reciprocating motion of the joist 7. The swinger provides a fulcrum for the joist 7 by connecting to the top of the frame. After the swinger is connected to the joist 7, the joist 7 can make the joist 7 do arc-shaped reciprocating motion during the motion process, simulating the action process of the damper. The loader includes a dynamic actuator 9 and a static actuator 1. The dynamic actuator 9 and the static actuator 1 are respectively arranged on both sides of the frame, and the dynamic actuator 9 and the static actuator 1 correspond to the two ends of the joist 7 respectively. The dynamic actuator 9 can output a dynamic load to the joist 7 to complete the dynamic load test of the damper. The static actuator 1 can output a static load to the joist 7 to complete the forward static load test of the damper. The static actuator 1 is arranged on the side of the frame, and the frame is used as the reverse force bearing object, which can effectively protect the static actuator 1. The middle part of the joist 7 is rotatably connected with a direction conversion member, and the direction conversion member includes two rotating plates 8 symmetrically arranged on both sides of the joist 7. The rotating plates 8 are rotatably connected to the joist 7, and the rotating plates 8 can be hinged to the dynamic actuator 9 and the static actuator 1 respectively. One end of the rotating plate 8 is arranged in the middle of the joist 7, and the rotating plate 8 is rotatably connected to the joist 7, so that the rotating plate 8 can be rotated to both ends of the joist 7, and after being rotated to both ends of the joist 7, it can be connected to the dynamic actuator 9 or the static actuator 1. Therefore, the multifunctional damper detection and loading device can complete the loading detection of the damper by the dynamic actuator 9 and the loading detection of the damper by the static actuator 11, and has more functions and higher detection efficiency.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional damper detection and loading device, characterized in that: It comprises a base, a frame, a joist, a swinger and a loader, wherein the frame is arranged on the base, the joist is arranged horizontally in the frame, and the swinger is respectively connected to the top of the frame and the joist to realize the reciprocating motion of the joist; The loader comprises a dynamic actuator and a static actuator, the dynamic actuator and the static actuator are respectively arranged on both sides of the frame, and the dynamic actuator and the static actuator respectively correspond to the two ends of the joist, the middle part of the joist is rotatably connected with a direction conversion member, the direction conversion member comprises two rotating plates symmetrically arranged on both sides of the joist, the rotating plates are rotatably connected with the joist, and the rotating plates can be hinged with the dynamic actuator and the static actuator respectively; A connecting hole is provided at the free end of the rotating plate, and hinge supports are provided at the output ends of the dynamic actuator and the static actuator, and the hinge supports can be connected to the corresponding rotating plates respectively; A first movable component is arranged below the hinge support, and the first movable component includes a slider and a slide rail, the hinge support is fixed on the slider, the slider is arranged on the slide rail, and the slider can slide freely along the slide rail; a support seat is arranged on the base on the dynamic actuator side, the support seat is located on the outside of the frame, and a support rod is arranged on the support seat, the support rod corresponds to the rear end output shaft of the dynamic actuator, and the two ends of the damper can be connected to the support rod and the rear end output shaft respectively.

2. The multifunctional damper detection and loading device according to claim 1, characterized in that: The swing device comprises two swing arms, which are symmetrically arranged on the frame, one end of the swing arm is rotatably connected to the frame, and the other end is rotatably connected to the supporting beam.

3. The multifunctional damper detection and loading device according to claim 1, characterized in that: The frame comprises a top beam and two support arms, the two support arms are vertically symmetrically arranged, and two ends of the top beam are respectively connected to the two support arms.

4. The multifunctional damper detection and loading device according to claim 3 is characterized in that: A reinforcement structure is provided between the support arm and the top beam, and the reinforcement structure includes a triangular rib plate, and the triangular rib plate is located at the corner of the top beam and the support arm, and the triangular rib plate is fixedly connected to the top beam and the support arm respectively.

5. The multifunctional damper detection and loading device according to claim 1, characterized in that: A storage frame is arranged on the joist, and the storage frame is fixed at the center point of the joist, and the center point of the storage frame coincides with the center point of the joist.

6. The multifunctional damper detection and loading device according to claim 1, characterized in that: A pressure sensor is arranged on the rear output shaft.

7. The multifunctional damper detection and loading device according to claim 6, characterized in that: The pressure sensor is connected to a microcontroller.

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