Damper with monitoring function

Abstract

The utility model relates to building anti -seismic shock attenuation technical field discloses a kind of damper with monitoring function, including movable rod, first cylinder and second cylinder, movable rod is slidably worn on first cylinder and movable rod one end is equipped with first damping plate, first damping plate divides the inside space of first cylinder into first chamber and second chamber, second cylinder is located outside first cylinder, second cylinder is equipped with second damping plate, second damping plate divides the inside space of second cylinder into third chamber and fourth chamber, connecting assembly is equipped between first cylinder and second cylinder, first chamber is connected with third chamber by connecting assembly, and first chamber, connecting assembly and third chamber are filled with damping medium in;It further includes monitoring unit, and monitoring unit is used to monitor at least one of the pressure value in first cylinder / second cylinder and the axial displacement value of movable rod.Solved the problem that damper cannot monitor its own working condition in prior art.

Description

Technical Field

[0001] This utility model relates to the field of building seismic resistance and vibration reduction technology, specifically to a damper with monitoring function. Background Technology

[0002] With the development of modern society, building structures must not only meet the requirements of main structural safety and reduce casualties, but also ensure that economic losses from earthquakes are minimized and that post-earthquake functionality is restored quickly. Therefore, the demand for disaster prevention and mitigation is increasing.

[0003] A viscous damper is a passive velocity-type energy-dissipating vibration reduction device that uses a viscous material as the damping medium. The damping force generated by the flowing damping medium converts the structural vibration energy caused by seismic or wind-induced vibrations into heat energy and dissipates it, thereby gradually reducing the piston's speed and achieving the purpose of damping and energy dissipation. However, in actual operation, most current viscous dampers cannot monitor their own working status, cannot accurately grasp the real-time deformation, vibration, and stress of the damper, and cannot effectively determine the stability of the viscous damper's function. Consequently, it is impossible to determine the overall vibration reduction effect of the damper on the building structure in real time, affecting the effectiveness of viscous dampers in structural engineering and increasing the workload of subsequent maintenance. Optimization and improvement are needed. Utility Model Content

[0004] The purpose of this invention is to provide a damper with a monitoring function to solve the problem that in the prior art, the damper cannot monitor its own working status.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A damper with monitoring function includes a movable rod, a first cylinder, and a second cylinder. The movable rod is slidably mounted on the first cylinder, and a first damping plate is fixed to one end of the movable rod inside the first cylinder. The first damping plate divides the internal space of the first cylinder into a first chamber and a second chamber. The second cylinder is located outside the first cylinder, and a second damping plate is slidably mounted axially inside the second cylinder. The second damping plate divides the internal space of the second cylinder into a third chamber and a fourth chamber. A connecting assembly is provided between the first cylinder and the second cylinder. The first chamber of the first cylinder is connected to the third chamber of the second cylinder through the connecting assembly. The first chamber, the connecting assembly, and the third chamber are all filled with a damping medium. It also includes a monitoring unit for monitoring at least one of the pressure value inside the first cylinder / second cylinder and the axial displacement value of the movable rod.

[0006] Furthermore, the monitoring unit includes a controller, a hydraulic sensor, and a displacement sensor. Both the hydraulic sensor and the displacement sensor are communicatively connected to the controller. The controller is located in the second chamber. The hydraulic sensor is used to measure the pressure value inside the first cylinder / second cylinder, and the displacement sensor is used to measure the axial displacement value of the movable rod.

[0007] Furthermore, the monitoring unit also includes a display that is communicatively connected to the controller, the display being used to display the pressure value inside the first cylinder / second cylinder and the axial displacement value of the movable rod.

[0008] Furthermore, the connecting assembly includes a main connecting pipe and two branch connecting pipes. One end of the main connecting pipe is connected to the third chamber, and one end of each of the two branch connecting pipes is connected to the first chamber, while the other end of each branch connecting pipe is connected to the main connecting pipe. Both of the connecting branch pipes are equipped with one-way valves. One of the one-way valves only allows the damping medium to flow from the first chamber to the connecting assembly, while the other one-way valve only allows the damping medium to flow from the connecting assembly to the first chamber.

[0009] Furthermore, a sleeve is fitted on the outer wall of the first cylinder, and a connecting ring is fixedly provided at one end of the sleeve. The connecting ring is fixed on the outer wall of the first cylinder. The inner wall of the sleeve, the outer wall of the first cylinder, and one side of the connecting ring together form an annular groove. An installation ring is fixedly fitted at one end of the movable rod outside the first cylinder. A first spring is provided between the installation ring and the connecting ring. One end of the first spring is inserted into the annular groove and connected to the side wall of the connecting ring, and the other end is connected to the installation ring.

[0010] Furthermore, a first connecting seat is installed at one end of the movable rod outside the first cylinder body, and a second connecting seat is installed at the end of the first cylinder body away from the first connecting seat.

[0011] Furthermore, a guide rod is slidably mounted on the second cylinder body. One end of the guide rod is located in the fourth chamber and is fixedly connected to the second damping plate. The other end of the guide rod extends out of the second cylinder body and is fixed with a scale.

[0012] Furthermore, a transparent protective shell is fitted around the outside of the scale, and the transparent protective shell is installed on the second cylinder.

[0013] Furthermore, the transparent protective shell is equipped with a pointer that mates with a ruler.

[0014] Furthermore, a second spring is fitted onto the surface of the guide rod, with one end of the second spring connected to the second damping plate and the other end connected to the side wall of the second chamber.

[0015] The beneficial effects of this utility model are: 1. This utility model provides a damper with monitoring function. During the axial movement of the movable rod, since there are damping media in the first chamber, the connecting component and the third chamber, the damping media will flow back and forth between the first chamber and the third chamber as the movable rod moves. The first damping plate and the second damping plate will always be blocked by the damping media during the synchronous movement with the movable rod. Regardless of whether the movable rod is subjected to axial tension or pressure, the damping media will hinder the movement of the first damping plate or the second damping plate, thereby realizing the damping energy dissipation of the damper.

[0016] 2. By setting up a monitoring unit, this application can monitor at least one of the pressure value in the first cylinder / second cylinder and the axial displacement value of the movable rod, thereby realizing real-time monitoring of the working status of the damper, providing support for the seismic safety of the building, and ensuring the effectiveness of vibration reduction and earthquake resistance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a damper with monitoring function according to this utility model; Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0018] in, 1. First cylinder block; 2. Second cylinder block; 3. First chamber; 4. Second chamber; 5. Third chamber; 6. Fourth chamber; 7. Mounting plate; 8. Movable rod; 9. First damping plate; 10. Second damping plate; 11. Guide rod; 12. First connecting seat; 13. Second connecting seat; 14. First spring; 15. Sleeve; 16. Connecting ring; 17. Annular groove; 18. Mounting ring; 19. Displacement sensor; 20. Controller; 21. Damping medium; 22. Main connecting pipe; 23. Branch connecting pipe; 24. Check valve; 25. Scale; 26. Transparent protective shell; 27. Pointer; 28. Hydraulic sensor; 29. ​​Second spring. Detailed Implementation

[0019] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] This embodiment proposes a damper with monitoring function, such as... Figures 1 to 2 As shown, the system includes a movable rod 8, a first cylinder 1, and a second cylinder 2. The movable rod 8 slides through the first cylinder 1. In this embodiment, one end of the first cylinder 1 is sealed, and the other end is detachably connected to a mounting plate 7. The movable rod 8 is coaxially arranged with the first cylinder 1. A first damping plate 9 is fixed to one end of the movable rod 8 inside the first cylinder 1, and the other end of the movable rod 8 protrudes outside the first cylinder 1 through the mounting plate 7. The first damping plate 9 slides and seals against the inner wall of the first cylinder 1. The first damping plate 9 divides the internal space of the first cylinder 1 into a first chamber 3 and a second chamber 4. The space between the first damping plate 9 and the mounting plate 7 is the second chamber 4. The second cylinder 2 is located outside the first cylinder 1, and the axis of the second cylinder 2 is parallel to the axis of the first cylinder 1. A second damping plate 10 is axially slidably and sealed inside the second cylinder 2, dividing the internal space of the second cylinder 2 into a third chamber 5 and a fourth chamber 6. A connecting assembly is provided between the first cylinder 1 and the second cylinder 2. The first chamber 3 of the first cylinder 1 is connected to the third chamber of the second cylinder 2 through the connecting assembly. The first chamber 3, the connecting assembly, and the third chamber 5 are all filled with damping medium 21. In this embodiment, since damping medium 21 is present in the first chamber 3, the connecting assembly, and the third chamber 5, the first damping plate 9 and the second damping plate 10 are always blocked by the damping medium 21 during synchronous movement with the movable rod 8. Regardless of whether the movable rod 8 is subjected to axial tension or pressure, the damping medium 21 will hinder the movement of the first damping plate 9 or the second damping plate 10, thereby achieving damping energy dissipation of the damper.

[0022] The damper of this application also includes a monitoring unit, which is used to monitor at least one of the pressure value in the first cylinder 1 / second cylinder 2 and the axial displacement value of the movable rod 8. In this embodiment, the monitoring unit includes a controller 20, a hydraulic sensor 28 and a displacement sensor 19. The hydraulic sensor 28 and the displacement sensor 19 are both communicatively connected to the controller 20, which is used to collect and / or store the corresponding test values. The controller 20 is located in the second chamber 4. The hydraulic sensor 28 is used to measure the pressure value in the first cylinder 1 / second cylinder 2. The hydraulic sensor 28 is located on the first cylinder 1 and connected to the first chamber 3, or the hydraulic sensor 28 is located on the second cylinder 2 and connected to the third chamber 5. With this structural design, when the damping medium 21 leaks, the hydraulic sensor 28 can provide timely feedback, allowing technicians to detect the leakage of the damping medium 21 in a timely manner. When the movable rod 8 moves axially, the first damping plate 9 or the second damping plate 10 exerts a squeezing effect on the damping medium 21. During this process, the pressure of the damping medium 21 will change in real time, which can also be fed back by the hydraulic sensor 28 in a timely manner, allowing technicians to monitor the pressure status in the first cylinder 1 / second cylinder 2 in real time. The displacement sensor 19 is used to measure the axial displacement value of the movable rod 8. Located in the second chamber 4 and mounted on the mounting plate 7, the displacement sensor 19 obtains the working displacement of the damper by measuring the distance between itself and the side of the first damping plate 9. When the movable rod 8 moves axially, the axial displacement value of the movable rod 8 can be monitored in real time via the displacement sensor 19. The monitoring unit also includes a display communicatively connected to the controller 20. The display shows the pressure values ​​within the first cylinder 1 / second cylinder 2 and the axial displacement value of the movable rod 8, enabling real-time output display of digital signals.

[0023] The connecting assembly includes a main connecting pipe 22 and two branch connecting pipes 23. One end of the main connecting pipe 22 is connected to the third chamber 5, and one end of each of the two branch connecting pipes 23 is connected to the first chamber 3, while the other end of each branch connecting pipe is connected to the main connecting pipe 22. Each branch connecting pipe 23 is equipped with a one-way valve 24. One one-way valve 24 only allows the damping medium 21 to flow from the first chamber 3 to the connecting assembly and the third chamber 5, and prevents the damping medium 21 from flowing back. The other one-way valve 24 only allows the damping medium 21 to flow from the third chamber 5 and the connecting assembly to the first chamber 3, and prevents the damping medium from flowing back. In this embodiment, as shown... Figure 1As shown, when the movable rod 8 is subjected to axial tension, the first damping plate 9 moves to the right, and the second damping plate 10 moves to the left. The damping medium 21 flows from the third chamber 5 and the connecting assembly to the first chamber 3. During its movement, the second damping plate 10 is blocked by the damping medium 21, thus achieving damping energy dissipation of the damper. When the movable rod 8 is subjected to axial pressure, the first damping plate 9 moves to the left, and the second damping plate 10 moves to the right. The damping medium 21 flows from the first chamber 3 to the connecting assembly and the third chamber 5. During its movement, the first damping plate 9 is blocked by the damping medium 21, thus achieving damping energy dissipation of the damper. Regardless of whether the movable rod 8 is subjected to axial tension or pressure, the damping medium 21 will impede the movement of either the first damping plate 9 or the second damping plate 10, thereby achieving damping energy dissipation of the damper.

[0024] A sleeve 15 is fitted onto the outer wall of the first cylinder body 1. A connecting ring 16 is fixedly attached to one end of the sleeve 15. The connecting ring 16 is fixed to the outer wall of the first cylinder body 1. The inner wall of the sleeve 15, the outer wall of the first cylinder body 1, and one side of the connecting ring 16 together form an annular groove 17. An installation ring 18 is fixedly fitted onto one end of the movable rod 8 located outside the first cylinder body 1. A first spring 14 is provided between the installation ring 18 and the connecting ring 16. The first spring 14 is fitted onto the first cylinder body 1. One end of the first spring 14 is inserted into the annular groove 17 and fixedly connected to the side wall of the connecting ring 16. The other end of the first spring 14 is fixedly connected to the installation ring 18. In this embodiment, when the movable rod 8 is axially displaced, it will cause the first spring 14 to stretch or compress. The first spring 14 realizes the shock absorption and buffering effect, and at the same time, it can help the damper of this application to achieve the self-resetting function after an earthquake.

[0025] A first connecting seat 12 is fixedly installed at one end of the movable rod 8 outside the first cylinder body 1, and a second connecting seat 13 is fixedly installed at the other end of the first cylinder body 1 away from the first connecting seat 12. In this embodiment, the damper of this application can be installed in the building structure through the two connecting seats.

[0026] A guide rod 11 is slidably mounted on the second cylinder 2. One end of the guide rod 11 is located inside the fourth chamber 6 and is fixedly connected to the second damping plate 10. The other end of the guide rod 11 extends out of the second cylinder 2 and is fixed with a scale 25. With this structural design, when the displacement sensor 19 malfunctions, the axial displacement value of the movable rod 8 can still be monitored by observing the scale on the scale 25. The structure is simple, easy to operate, and highly practical.

[0027] The scale 25 is fitted with a transparent protective shell 26, which is fixedly installed on the second cylinder 2. This structural design can protect the scale 25 and extend its service life.

[0028] Inside the transparent protective shell 26 is a pointer 27 that works with the scale 25, which makes it easier for technicians to read the scale value of the scale 25 more intuitively.

[0029] A second spring 29 is fitted onto the surface of the guide rod 11. One end of the second spring 29 is fixedly connected to the second damping plate 10, and the other end is fixedly connected to the side wall of the second chamber 4. When the movable rod 8 is axially displaced, it will cause the second spring 29 to be stretched or compressed. The second spring 29 realizes the shock absorption and buffering effect, and further helps the damper of this application to achieve the self-resetting function after an earthquake.

[0030] Working principle: like Figure 1 As shown, the damper of this application is installed in the building structure through the connecting seat. When an earthquake occurs, if the damper is subjected to pressure, the movable rod 8 drives the first damping plate 9 to move to the left along the axial direction, and the second damping plate 10, guide rod 11, and scale 25 to move to the right. The damping medium 21 flows from the first chamber 3 to the connecting assembly and the third chamber 5. During the movement, the first damping plate 9 will be blocked by the damping medium 21, and at the same time, the first spring 14 and the second spring 29 will be compressed, realizing the damping energy dissipation of the damper. If the movable rod 8 is subjected to axial tension, the first damping plate 9 moves to the right, and the second damping plate 10, guide rod 11, and scale 25 move to the left. The damping medium 21 flows from the third chamber 5 and the connecting assembly to the first chamber 3. During the movement, the second damping plate 10 will be blocked by the damping medium 21, and at the same time, the first spring 14 and the second spring 29 will be stretched, realizing the damping energy dissipation of the damper. Regardless of whether the damper is subjected to axial tension or compression, the damping medium 21 will impede the movement of the first damping plate 9 or the second damping plate 10, thereby achieving damping energy dissipation. If the displacement sensor 19 malfunctions, the scale value of the ruler 25 can be read through the pointer 27, which can also monitor the axial displacement value of the movable rod 8. Once the seismic force decreases or stops, the first spring 14 and the second spring 29 push the movable rod 8 back to its initial position, and the restoring force of the springs plays a self-resetting role for the damper. By setting up a monitoring unit, the displacement sensor 19 measures the distance between itself and the side of the first damping plate 9 to obtain the working displacement of the damper. When the movable rod 8 moves axially, the displacement sensor 19 can monitor the axial displacement value of the movable rod 8 in real time, and the hydraulic sensor 28 can monitor the pressure of the damping medium 21 in the first chamber 3 in real time, realizing real-time monitoring of the working status of the damper, providing support for the seismic safety of the building, and ensuring the effectiveness of seismic reduction and resistance.

[0031] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. A damper with monitoring function, characterized in that: The device includes a movable rod, a first cylinder, and a second cylinder. The movable rod is slidably mounted on the first cylinder, and a first damping plate is fixed to one end of the movable rod inside the first cylinder. The first damping plate divides the internal space of the first cylinder into a first chamber and a second chamber. The second cylinder is located outside the first cylinder, and a second damping plate is slidably mounted axially inside the second cylinder. The second damping plate divides the internal space of the second cylinder into a third chamber and a fourth chamber. A connecting assembly is provided between the first cylinder and the second cylinder. The first chamber of the first cylinder is connected to the third chamber of the second cylinder through the connecting assembly. The first chamber, the connecting assembly, and the third chamber are all filled with a damping medium. It also includes a monitoring unit for monitoring at least one of the pressure value inside the first cylinder / second cylinder and the axial displacement value of the movable rod.

2. A damper with monitoring function according to claim 1, characterized in that: The monitoring unit includes a controller, a hydraulic sensor, and a displacement sensor. Both the hydraulic sensor and the displacement sensor are communicatively connected to the controller. The controller is located in the second chamber. The hydraulic sensor is used to measure the pressure value inside the first cylinder / second cylinder, and the displacement sensor is used to measure the axial displacement value of the movable rod.

3. A damper with monitoring function according to claim 2, characterized in that: The monitoring unit also includes a display that is communicatively connected to the controller. The display is used to display the pressure value inside the first cylinder / second cylinder and the axial displacement value of the movable rod.

4. A damper with monitoring function according to claim 1, characterized in that: The connecting assembly includes a main connecting pipe and two branch connecting pipes. One end of the main connecting pipe is connected to the third chamber, and one end of each of the two branch connecting pipes is connected to the first chamber, while the other end of each branch connecting pipe is connected to the main connecting pipe. Both of the connecting branch pipes are equipped with one-way valves. One of the one-way valves only allows the damping medium to flow from the first chamber to the connecting assembly, while the other one-way valve only allows the damping medium to flow from the connecting assembly to the first chamber.

5. A damper with monitoring function according to claim 1, characterized in that: A sleeve is fitted on the outer wall of the first cylinder. A connecting ring is fixedly provided at one end of the sleeve. The connecting ring is fixed on the outer wall of the first cylinder. The inner wall of the sleeve, the outer wall of the first cylinder, and one side of the connecting ring together form an annular groove. An installation ring is fixedly fitted at one end of the movable rod outside the first cylinder. A first spring is provided between the installation ring and the connecting ring. One end of the first spring is inserted into the annular groove and connected to the side wall of the connecting ring, and the other end is connected to the installation ring.

6. A damper with monitoring function according to claim 1, characterized in that: A first connecting seat is installed at one end of the movable rod outside the first cylinder body, and a second connecting seat is installed at the end of the first cylinder body away from the first connecting seat.

7. A damper with monitoring function according to claim 1, characterized in that: A guide rod is slidably mounted on the second cylinder body. One end of the guide rod is located in the fourth chamber and is fixedly connected to the second damping plate. The other end of the guide rod extends out of the second cylinder body and is fixed with a scale.

8. A damper with monitoring function according to claim 7, characterized in that: The scale is fitted with a transparent protective shell, which is mounted on the second cylinder.

9. A damper with monitoring function according to claim 8, characterized in that: The transparent protective shell contains a pointer that works with a ruler.

10. A damper with monitoring function according to claim 7, characterized in that: A second spring is fitted onto the surface of the guide rod. One end of the second spring is connected to the second damping plate, and the other end is connected to the side wall of the second chamber.

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