Building structure anti-seismic test demonstration device

Abstract

The utility model relates to the technical field of anti-seismic test demonstration devices, in particular to a building structure anti-seismic test demonstration device which comprises a base, the surface of the base is fixedly connected with a supporting seat, the surface of the supporting seat is fixedly connected with a double-shaft motor, and the output end of the double-shaft motor is fixedly connected with a driving rod. The surface of the driving rod is fixedly connected with a sleeve rod, the surface of the sleeve rod is fixedly connected with a connecting rod, the surface of the base is slidably connected with a storage table, the other end of the connecting rod is rotatably connected with the storage table, and the surface of the sleeve rod is fixedly connected with a sleeve. According to the utility model, the purposes of rapidly changing the position of the limiting rod corresponding to the insertion hole and fixing the driving rod and the sleeve rod together are achieved, compared with a bolt adjusting and fixing mode, the mode is simpler, more convenient and quicker, the working efficiency of changing the simulated building shaking degree is improved, and the working efficiency is improved. And the time required by the adjustment process is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of seismic test demonstration devices, in particular to a seismic test demonstration device for building structures. Background Technique

[0002] An earthquake is a natural disaster with great destructiveness to nature and humans. In this natural disaster, the most destructive is the collapse of buildings and the harm to people. Different magnitudes of earthquakes have different degrees of damage to buildings, and buildings with different structures also have different seismic resistance degrees to the same earthquake magnitude. The degree of damage to buildings by different magnitudes of earthquakes is a natural law, that is, the greater the magnitude, the greater the destructiveness to buildings, which is something that people cannot change. Publication No.: CN216562253U discloses a seismic demonstration device for building earthquake resistance teaching, including a bottom plate and a track fixedly installed on the top of the bottom plate. A horizontal movement mechanism is fixedly installed on the left side of the top of the bottom plate. The horizontal movement mechanism includes a double-shaft motor fixedly installed on the left side of the top of the bottom plate. The horizontal movement mechanism includes a movable seat slidably connected to the top of the track. A lifting mechanism is fixedly installed on the top of the movable seat. For this seismic demonstration device for building earthquake resistance teaching, when the double-shaft motor is started, the rotating shaft, the driving rod and the sleeve rotate, driving the connecting rod to swing, so that the movable seat moves left and right, achieving the purpose of simulating shear waves. By setting the top plate, the fixed frame, the limiting frame and the movable frame, when the motor is started, the turntable rotates, the support rod swings, and the top plate moves up and down under the limitation of the fixed frame, the limiting frame and the movable frame, achieving the purpose of simulating compressional waves, and solving the problem of only being able to simulate the shear waves or compressional waves of an earthquake. However, in the process of using the above technology, when changing the shaking degree of the simulated building during the simulated earthquake process, it is achieved by adjusting the connection of the bolt to different threaded holes. However, this process is not flexible and convenient enough in actual operation. It is necessary to first remove the bolt from the threaded hole and the threaded groove, then change the corresponding position of the threaded hole and the threaded groove, and then screw the bolt into the threaded groove corresponding to the threaded hole. This process is time-consuming and laborious, and is not conducive to the convenience of adjusting the shaking degree of the simulated building. Therefore, it needs to be changed. Content of the Utility Model

[0003] The purpose of the utility model is to solve the technical problems put forward in the above background technique.

[0004] The utility model adopts the following technical solutions: An earthquake-resistant test demonstration device for building structures, including a base, a support seat is fixedly connected to the surface of the base, a dual-axis motor is fixedly connected to the surface of the support seat, a driving rod is fixedly connected to the output end of the dual-axis motor, a sleeve rod is fixedly connected to the surface of the driving rod, a connecting rod is fixedly connected to the surface of the sleeve rod, a placement table is slidably connected to the surface of the base, the other end of the connecting rod is rotatably connected to the placement table, a sleeve is fixedly connected to the surface of the sleeve rod, a slider is slidably connected to the inside of the sleeve, a limiting rod and a pull rod are fixedly connected to the surface of the slider, a jack is opened on the surface of the driving rod, the limiting rod is inserted into the inside of the jack, and a spring is sleeved on the surface of the pull rod.

[0005] Preferably, a magnet is fixedly connected to the inside of the jack, and the magnet is adsorbed and connected to the limiting rod. Here, the stability of the connection between the limiting rod and the driving rod can be further improved.

[0006] Preferably, the number of the connecting rods is two groups, and the two groups of connecting rods are symmetrically distributed on both sides of the middle part of the surface of the placement table. Here, the placement table can be made more stable when moving horizontally.

[0007] Preferably, the number of the jacks is three groups, and the three groups of jacks are equidistantly distributed on the surface of the driving rod. Here, the corresponding position between the driving rod and the sleeve rod can be adjusted according to needs, so as to achieve the change of the shaking degree and the shaking amplitude of the simulated building block by simulating shear waves.

[0008] Preferably, a track is fixedly connected to the surface of the base, a chute is opened on the lower surface of the placement table, the track is slidably connected to the inside of the chute, and both the track and the chute are T-shaped. Here, the placement table can be prevented from being separated from the track when moving horizontally.

[0009] Preferably, an anti-slip pad is fixedly connected to the lower surface of the base, and the anti-slip pad is made of rubber material. Here, the friction between the base and the contact surface can be increased, and the possibility of the base being shifted due to the influence of vibration can be avoided.

[0010] Preferably, a threaded hole is opened on the surface of the base, a screw rod is threadedly connected to the inside of the threaded hole, an adjusting knob is fixedly connected to the top of the screw rod, and a universal wheel is rotatably connected to the bottom of the screw rod. Here, the earthquake-resistant test demonstration device can be conveniently moved, avoiding the need to be lifted by multiple people for movement, which is beneficial to saving manpower and making the device more convenient to move. At the same time, the universal wheel can be hidden inside the base by rotating the screw rod so as not to affect the earthquake-resistant simulation work.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0012] 1. In the present utility model, by providing a sleeve, a slider, a limiting rod, a pull rod and a spring structure, when it is necessary to change the shaking degree of the simulated building in the seismic test by changing the corresponding position of the limiting rod in the jack on the driving block, first pull the pull rod on the sleeve outwards. During the movement of the pull rod, the slider and the limiting rod are driven to move and compress the spring, so that the limiting rod disengages from the jack on the driving rod. Subsequently, change the telescopic degree of one end of the driving rod in the sleeve rod. When one end of the driving rod is adjusted to a suitable position inside the sleeve rod, release the pull rod. The limiting rod quickly enters and exits the inside of one of the jacks on the driving rod under the action of the spring force, achieving the purpose of quickly changing the corresponding position between the limiting rod and the jack and fixing the driving rod and the sleeve rod together. Compared with the method of adjusting and fixing by bolts, this method is more simple and fast, which is beneficial to improving the working efficiency of changing the shaking degree of the simulated building and shortening the time required for this adjustment process.

[0013] 2. In the present utility model, by providing an adjusting knob, a lead screw, a threaded hole and a universal wheel, when it is necessary to move the device, simultaneously rotate the four adjusting knobs on the base, so that the adjusting knobs drive the lead screw to rotate in the threaded hole and push the universal wheel downwards until the universal wheel leaks out from the internal cavity of the base. Subsequently, push the device, which realizes the convenient movement of the seismic test demonstration device, avoids the need to lift and move it by multiple people, is beneficial to saving manpower, makes the device more convenient to move, and at the same time, the universal wheel can also be hidden inside the base by rotating the lead screw to avoid affecting the seismic simulation work. Description of the Drawings

[0014] Figure 1 is a schematic diagram of a building structure seismic test demonstration device proposed by the present utility model;

[0015] Figure 2 is a bottom view of a building structure seismic test demonstration device proposed by the present utility model;

[0016] Figure 3 is an exploded schematic diagram of a building structure seismic test demonstration device proposed by the present utility model;

[0017] Figure 4 is a partial exploded schematic diagram of a building structure seismic test demonstration device proposed by the present utility model.

[0018] Legend Explanation:

[0019] 1. Base; 2. Support base; 3. Biaxial motor; 4. Placing table; 5. Track; 6. Connecting rod; 7. Sleeve rod; 8. Driving rod; 9. Universal wheel; 10. Lead screw; 11. Anti-slip pad; 12. Chute; 13. Adjusting knob; 14. Sleeve; 15. Slide block; 16. Spring; 17. Limit rod; 18. Jack; 19. Magnet; 20. Threaded hole; 21. Pull rod. Detailed implementation mode

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0022] Embodiment 1

[0023] Please refer to Figures 1-4 , the present invention provides a technical solution: an earthquake resistance test demonstration device for building structures, including a base 1, a support base 2 is fixedly connected to the surface of the base 1, a biaxial motor 3 is fixedly connected to the surface of the support base 2, an output end of the biaxial motor 3 is fixedly connected to a driving rod 8, a sleeve rod 7 is fixedly connected to the surface of the driving rod 8, a connecting rod 6 is fixedly connected to the surface of the sleeve rod 7, a placing table 4 is slidably connected to the surface of the base 1, the other end of the connecting rod 6 is rotatably connected to the placing table 4, a sleeve 14 is fixedly connected to the surface of the sleeve rod 7, a slide block 15 is slidably connected to the inside of the sleeve 14, a limit rod 17 and a pull rod 21 are fixedly connected to the surface of the slide block 15, a jack 18 is opened on the surface of the driving rod 8, the limit rod 17 is inserted into the inside of the jack 18, a spring 16 is sleeved on the surface of the pull rod 21, a magnet 19 is fixedly connected to the inside of the jack 18, and the magnet 19 is adsorbed and connected to the limit rod 17, which can further improve the stability of the connection between the limit rod 17 and the driving rod 8. The number of the connecting rods 6 is two groups, and the two groups of connecting rods 6 are symmetrically distributed on both sides of the middle part of the surface of the placing table 4, which can make the placing table 4 move more stably horizontally. The number of the jacks 18 is three groups, and the three groups of jacks 18 are equidistantly distributed on the surface of the driving rod 8, which can adjust the corresponding positions of the driving rod 8 and the sleeve rod 7 as needed, so as to simulate the change of the shaking degree and the shaking amplitude of the simulated building block caused by the shear wave. A track 5 is fixedly connected to the surface of the base 1, a chute 12 is opened on the lower surface of the placing table 4, and the track 5 is slidably connected to the inside of the chute 12. Both the track 5 and the chute 12 are T-shaped, which can prevent the placing table 4 from detaching from the track 5 when moving horizontally.

[0024] Embodiment 2

[0025] Please refer to Figure 3 , a non-slip pad 11 is fixedly connected to the lower surface of the base 1. The non-slip pad 11 is made of rubber material, which can increase the friction between the base 1 and the contact surface, avoiding the possibility of the base 1 being offset due to the influence of vibration. Threaded holes 20 are formed on the surface of the base 1. A lead screw 10 is threadedly connected inside the threaded holes 20. The top of the lead screw 10 is fixedly connected with an adjustment knob 13, and the bottom of the lead screw 10 is rotatably connected with a universal wheel 9. This can facilitate the movement of the earthquake resistance test demonstration device, avoiding the need to lift and move it by multiple people, which is beneficial to saving manpower and making the device more convenient to move. At the same time, the universal wheel 9 can also be hidden inside the base 1 by rotating the lead screw 10 to avoid affecting the earthquake resistance simulation work.

[0026] Working principle: During use, when an earthquake-resistant test demonstration needs to be carried out on the simulated building, first place the simulated building on the placement table 4, and then start the dual-axis motor 3 on the support base 2. The output end of the dual-axis motor 3 drives the driving rod 8 to rotate. While the driving rod 8 rotates, it drives the sleeve rod 7 to rotate and one end of the connecting rod 6 to rotate. The other end of the connecting rod 6 pulls the placement table 4 to move horizontally back and forth. The track 5 on the base 1 slides in the chute 12 on the bottom surface of the placement table 4, which can keep the placement table 4 stable and not deviate. When it is necessary to change the shaking degree of the simulated building in the earthquake-resistant test by changing the corresponding position of the limiting rod 17 in the jack 18 on the driving block, first pull the pull rod 21 on the sleeve 14 outwards. During the movement of the pull rod 21, it drives the slider 15 and the limiting rod 17 to move and compress the spring 16, so that the limiting rod 17 disengages from the jack 18 on the driving rod 8. Then, change the telescopic degree of one end of the driving rod 8 inside the sleeve rod 7. When one end of the driving rod 8 is adjusted to the appropriate position inside the sleeve rod 7, release the pull rod 21. The limiting rod 17 quickly enters and exits the inside of one of the jacks 18 on the driving rod 8 under the action of the elastic force of the spring 16, and the magnet 19 in the jack 18 will attract the limiting rod 17 together. The purpose of quickly changing the corresponding position of the limiting rod 17 and the jack 18 and fixing the driving rod 8 and the sleeve rod 7 together is achieved. Compared with the method of adjusting and fixing by bolts, this method is more simple and fast, which is beneficial to improving the working efficiency of changing the shaking degree of the simulated building and shortening the time required for this adjustment process. When it is necessary to move the device, rotate the four adjusting knobs 13 on the base 1 at the same time, so that the adjusting knobs 13 drive the lead screw 10 to rotate in the threaded hole 20 and push the universal wheel 9 down until the universal wheel 9 leaks out from the internal cavity of the base 1, so that the anti-slip pad 11 under the base 1 is separated from the ground. Then, push the device, which realizes the convenient movement of the earthquake-resistant test demonstration device, avoids the need to lift and move it by multiple people, is beneficial to saving manpower, and makes the device more convenient to move. At the same time, the universal wheel 9 can also be hidden inside the base 1 by rotating the lead screw 10 to avoid affecting the earthquake-resistant simulation work.

[0027] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A building structure seismic test demonstration device, comprising a base (1), characterized in that: The surface of the base (1) is fixedly connected to a support base (2), the surface of the support base (2) is fixedly connected to a dual-axis motor (3), the output end of the dual-axis motor (3) is fixedly connected to a driving rod (8), the surface of the driving rod (8) is fixedly connected to a sleeve rod (7), the surface of the sleeve rod (7) is fixedly connected to a connecting rod (6), the surface of the base (1) is slidably connected to a storage table (4), the other end of the connecting rod (6) is rotatably connected to the storage table (4), the surface of the sleeve rod (7) is fixedly connected to a sleeve (14), the interior of the sleeve (14) is slidably connected to a slider (15), the surface of the slider (15) is fixedly connected to a limit rod (17) and a pull rod (21), the surface of the driving rod (8) is provided with a socket (18), the limit rod (17) is inserted into the socket (18), and the surface of the pull rod (21) is sleeved with a spring (16).

2. A building structure seismic test demonstration device according to claim 1, characterized in that: A magnet (19) is fixedly connected inside the insertion hole (18), and the magnet (19) is adsorbed and connected to the limiting rod (17).

3. A building structure seismic test demonstration device according to claim 1, characterized in that: There are two groups of connecting rods (6), and the two groups of connecting rods (6) are symmetrically distributed on both sides of the middle of the surface of the storage platform (4).

4. A building structure seismic test demonstration device according to claim 1, characterized in that: The number of the insertion holes (18) is three groups, and the three groups of insertion holes (18) are evenly distributed on the surface of the driving rod (8).

5. The building structure seismic test demonstration device according to claim 1, characterized in that: A track (5) is fixedly connected to the surface of the base (1), a slide groove (12) is provided on the lower surface of the storage table (4), the track (5) is slidably connected inside the slide groove (12), and the track (5) and the slide groove (12) are both T-shaped.

6. The building structure seismic test demonstration device according to claim 1, characterized in that: The lower surface of the base (1) is fixedly connected to an anti-skid pad (11), and the anti-skid pad (11) is made of rubber.

7. The building structure seismic test demonstration device according to claim 1, characterized in that: A threaded hole (20) is provided on the surface of the base (1), a screw rod (10) is connected to the inner thread of the threaded hole (20), an adjusting knob (13) is fixedly connected to the top of the screw rod (10), and a universal wheel (9) is rotatably connected to the bottom of the screw rod (10).

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