Overload protection viscous damper with monitoring function

Abstract

The application discloses an overload protection viscous damper with a monitoring function and relates to the technical field of dampers, which comprises a damper body, a piston rod arranged in the damper body, bushings symmetrically arranged on the inner side of the damper body, a storage cavity and a working cavity separated by the bushings, an overflow port, an overflow valve arranged in the overflow port, a first pressure gauge fixedly installed in the storage cavity, a second pressure gauge fixedly installed in the storage cavity and a third pressure gauge fixedly installed in the working cavity. The damper is kept stable by opening and closing of the overflow valve, and even if the temperature influences the medium flow, the medium cannot flow into the storage cavity through the overflow valve due to the arrangement of the adjusting assembly. In addition, the medium flow rate is gentle due to the arrangement of the porous cylinder, so that the damping force fluctuation is avoided.

Description

Technical Field

[0001] This invention relates to the field of damper technology, and more specifically, to an overload protection viscous damper with monitoring function. Background Technology

[0002] In building construction, dampers, as energy-dissipating components, have become a key technology for improving the wind and earthquake resistance of high-rise buildings, long-span bridges, and various seismic-resistant structures. Currently, viscous dampers are widely used in these fields due to their simple structure, continuous output, and good fatigue characteristics. The working principle of this type of damper is based on the shear flow generated by the internal medium under the compression of a piston, thereby generating a velocity-related damping force to dissipate the kinetic energy input to the structure.

[0003] However, when existing viscous dampers are subjected to strong earthquakes or strong winds, the relative velocity at both ends of the damper increases sharply, causing the internal pressure to surge. This transient overload can easily damage the sealing components, causing the damper to lose its energy dissipation function. Furthermore, the mechanical properties of viscous dampers are significantly affected by ambient temperature. In low-temperature environments, the viscosity of the damping medium increases sharply, and its fluidity deteriorates, which may lead to excessive damping force output. In high-temperature environments, the viscosity of the medium decreases, which may result in insufficient damping force. Therefore, we propose an overload protection viscous damper with monitoring function. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an overload protection viscous damper with monitoring function.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a damper body and a piston rod disposed within the damper body; bushings are symmetrically arranged inside the damper body, the bushings dividing the damper body into a storage chamber and a working chamber; and further comprising... Overflow ports are symmetrically provided inside the bushings on both sides; An overflow valve is correspondingly disposed within the overflow port; The first pressure gauge and the second pressure gauge are both located at the bottom inside the storage cavity and at both ends outside the damper body, for detecting the pressure inside the storage cavity; The third pressure gauge is located at its bottom inside the working chamber, between the first and second pressure gauges, and is used to detect the pressure inside the working chamber. An adjustment component, located on one side of the overflow port, is used to open or close the overflow port.

[0006] Preferably, the adjustment component includes an annular component symmetrically disposed within the damper body, and a linkage component is disposed on the outer side of the bushing. The annular component and the linkage component cooperate to open and close the overflow port.

[0007] Preferably, the annular component includes a fan-shaped groove disposed within the damper body, with annular plates installed at both ends of the fan-shaped groove, and a fan-shaped plate disposed between the two sets of annular plates. The annular plates are located within the working cavity, and one end of each of the two annular plates is disposed on the outer wall of the bushing. Inclined grooves are provided on the outer wall of each annular plate. The movable end of the third pressure gauge is connected to a positioning rod, which is slidably fitted into the inclined groove.

[0008] Preferably, the linkage includes a rack disposed on the inner wall of the annular plate, an annular bar is disposed on one side of each set of overflow ports, and a toothed ring is disposed on the outer wall of the annular bar, the rack meshing with the toothed ring.

[0009] Preferably, the inner wall of the annular strip is provided with multiple sets of connecting parts, and an annular ring is provided between the multiple sets of connecting parts. The connecting parts are provided with corresponding openings, and a limit rod is provided in the opening. The limit rod is slidably connected in the opening.

[0010] Preferably, the bushing is provided with multiple sets of sliding grooves symmetrically on one side, and the two sets of sliding grooves at both ends intersect. Sliding plates are slidably connected in the corresponding sliding grooves at both ends. Each sliding plate includes an abutting surface one and an abutting surface two, which form an acute angle. Adjacent sliding plates are fitted together through the abutting surface one and the abutting surface two.

[0011] Preferably, a variable opening is formed between the multiple sets of sliding plates, the variable opening is positioned corresponding to the overflow port, the annular ring is disposed on the outside of the sliding plate, and one end of the limiting rod that passes through the sliding plate is disposed in the sliding groove.

[0012] Preferably, the system further includes an auxiliary component, which includes an auxiliary member disposed at one end of the annular strip, an abutment member disposed within the auxiliary member, and a flow control member disposed within the overflow port. The flow control member and the abutment member cooperate to perform secondary sealing of the overflow port.

[0013] Preferably, the auxiliary component includes multiple sets of curved openings disposed on the bushing, with two sets at each end of the bushing, symmetrically disposed on the outside of the slide groove.

[0014] Preferably, vertical sections are symmetrically arranged on the outer wall of the annular strip, and an auxiliary ring is provided at one end of each of the two sets of vertical sections that penetrate the curved opening. The auxiliary ring is located inside the storage cavity.

[0015] Preferably, the abutting member includes symmetrically arranged openings within the auxiliary ring, each opening having an integrally formed abutting portion. The curved openings on both sides extend inward to form vertical grooves, each vertical groove having a tension spring on its inner wall. One end of each tension spring has an abutting rod, which cooperates with the abutting portion. Multiple sets of sealing rods are linearly arranged on the outer wall of the abutting rod.

[0016] Preferably, the flow control device includes a flow control cylinder disposed in the overflow port, the flow control cylinder having a perforated cylinder inside, one end of the perforated cylinder corresponding to the overflow valve, the outer wall of the flow control cylinder having a plurality of overflow holes symmetrically provided, and the sealing rod being inserted into the overflow holes accordingly.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In this invention, when gauges A and B have no pressure and gauge C has pressure, the system is in a non-earthquake state. When the pressure in gauge C increases, the system is in an earthquake state, and the damper starts working. When the pressure in gauge C reaches its highest point, and gauges A and B have pressure, the system is in a major earthquake state. The bushing is equipped with an overflow valve. During a major earthquake, when the pressure in the working chamber rises to its upper limit, the overflow valve opens, and the medium flows into the storage chamber, stabilizing the damping force and thus achieving the protection function.

[0018] In this invention, the overflow port is blocked by an adjusting component, preventing the medium from flowing into the storage chamber through the overflow valve even if temperature affects the medium's flow. When an earthquake occurs, the overflow port opens via the linkage of meter C, thus restoring the overflow valve to normal operation.

[0019] 3. In this invention, a porous cylinder, which is a metal foam block, is installed inside the flow control cylinder. The medium flowing out of the overflow valve first passes through the porous cylinder and then through the flow control cylinder into the storage chamber. This makes the medium flow rate smooth and avoids damping force fluctuations. At the same time, the porous cylinder can absorb some of the medium and release it slowly during large shocks, maintaining stable pressure in the storage chamber and reducing the frequency of oil replenishment.

[0020] 4. In this invention, by setting an auxiliary component, in non-earthquake situations, the sealing rod completely blocks the overflow hole, so even if a small amount of medium enters the porous cylinder, it cannot enter the storage chamber, achieving a secondary sealing effect. When an earthquake occurs, the annular bar drives the auxiliary ring to rotate through the vertical part, causing the sealing rod to move away from the overflow hole, thus allowing the medium to flow from the working chamber into the storage chamber, achieving stability of the damping force. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the ring-shaped component structure of the present invention; Figure 4 For the present invention Figure 2 Enlarged view of point A; Figure 5 This is a schematic diagram of the linkage structure of the present invention; Figure 6 This is a schematic cross-sectional view of the bushing of the present invention; Figure 7 This is a schematic diagram of the chute structure of the present invention; Figure 8 This is a bottom view schematic diagram of the bushing structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the present invention; Figure 10 This is a cross-sectional schematic diagram of the flow control tube of the present invention; Figure 11 This is a schematic diagram of the sliding plate structure of the present invention.

[0022] Figure label: 1. Damper body; 2. Piston rod; 3. Bushing; 4. Storage chamber; 5. Working chamber; 6. Overflow port; 7. Overflow valve; 8. First pressure gauge; 9. Second pressure gauge; 10. Third pressure gauge; 11. Adjustment assembly; 12. Annular component; 13. Linkage component; 21. Auxiliary assembly; 22. Auxiliary component; 23. Contact component; 24. Flow control component; 121. Sector groove; 122. Annular plate; 123. Sector plate; 124. Inclined groove; 125. Positioning rod; 131. Rack; 132. Annular bar; 1 33. Gear ring; 134. Connecting part; 135. Annular ring; 136. Opening; 137. Limiting rod; 138. Slide groove; 139. Sliding plate; 140. Abutting surface one; 141. Abutting surface two; 142. Variation port; 221. Curved port; 222. Vertical part; 223. Auxiliary ring; 231. Through port; 232. Abutting part; 233. Vertical groove; 234. Tension spring; 235. Abutting rod; 236. Sealing rod; 241. Flow control cylinder; 242. Perforated cylinder; 243. Overflow hole. Detailed Implementation

[0023] 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.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0028] Example 1 further illustrates the overload protection viscous damper with monitoring function proposed in this invention. It includes a damper body 1 and a piston rod 2 disposed within the damper body 1. Bushings 3 are symmetrically installed inside the damper body 1, dividing the damper body 1 into a storage cavity 4 and a working cavity 5. The storage cavity 4 and the working cavity 5 each have two chambers, thus the damper has four stages of cavities. It also includes… Overflow port 6, overflow ports 6 are symmetrically provided inside the bushings 3 on both sides; Overflow valve 7, which is detachably installed in overflow port 6; The bottom of the first pressure gauge 8 and the second pressure gauge 9 are both located inside the storage cavity 4, and are located at both ends of the outside of the damper body 1, for detecting the pressure inside the storage cavity 4. The third pressure gauge 10 is located at the bottom inside the working chamber 5, between the first pressure gauge 8 and the second pressure gauge 9, and is used to detect the pressure inside the working chamber 5. Depend on Figure 1 and Figure 2 It is known that pressure gauges are installed in the storage chamber 4 and the working chamber 5 to detect the pressure in each chamber, which can provide more direct information about the earthquake situation and the working status of the damper. During a major earthquake, the pressure inside the working chamber 5 rises to the upper limit. At this time, the overflow valve 7 opens, and the medium flows into the storage chamber 4, which stabilizes the damping force. This achieves both protection and monitoring functions, facilitating daily inspections. If the pressure at gauge C is normal, it indicates that the damper is not malfunctioning. The third pressure gauge 10 port is easy to disassemble and can be used for monitoring under normal conditions. If oil needs to be added, it can be injected through gauge C port. In summary, when Gauges A and B have no pressure and Gauge C has pressure, the situation is not earthquake-prone; when the pressure in Gauge C rises rapidly, the situation is earthquake-prone and the damper starts to work; when the pressure in Gauge C reaches its highest point and Gauges A and B have pressure, the situation is already under a major earthquake. Since earthquakes are accidental events, the storage chamber 4 is pressureless when there is no earthquake. If the damper is left stagnant for a long time, the pressure difference between the chambers may be caused by temperature changes, which may affect the performance of the damper. Therefore, the present invention provides an adjustment component 11, which is located on the overflow port 6 side, for opening or closing the overflow port 6. Its regulating component 11 includes an annular part 12 symmetrically arranged inside the damper body 1, and a linkage part 13 arranged on the outside of the bushing 3. The annular part 12 and the linkage part 13 cooperate to open and close the overflow port 6. When there is no earthquake, the regulating component 11 blocks the position of the overflow port 6. Even if the temperature affects the flow of the medium, the medium will not flow into the storage chamber 4 through the overflow valve 7. When an earthquake occurs, the overflow port 6 is opened by the linkage of the meter C, thereby restoring the normal use of the overflow valve 7. To further avoid the influence of temperature on the medium, the device is also equipped with an auxiliary component 21, including an auxiliary component 22 located at one end of the annular bar 132, an abutment component 23 located inside the auxiliary component 22, and a flow control component 24 located inside the overflow port 6. The flow control component 24 and the abutment component 23 cooperate to perform secondary sealing of the overflow port 6.

[0029] Example 2 Based on Embodiment 1, the following technical features are added: the annular component 12 includes a sector-shaped groove 121 provided in the damper body 1, and an annular plate 122 is rotatably connected to both ends of the sector-shaped groove 121. A sector-shaped plate 123 is fixedly connected between the two sets of annular plates 122. The annular plate 122 is located in the working chamber 5, and one end of the two annular plates 122 is rotatably connected to the outer wall of the bushing 3. An inclined groove 124 is provided on the outer wall of the annular plate 122. The movable end of the third pressure gauge 10 is connected to a positioning rod 125, and the positioning rod 125 is slidably fitted into the inclined groove 124. Depend on Figures 2 to 4It is known that a fan-shaped groove 121 is formed on the inner wall of the damper body 1. The angle of the fan-shaped groove 121 is between 160° and 200°. An annular plate 122 is rotatably connected to both ends of the fan-shaped groove 121. The outer side of the annular plate 122 is located in the fan-shaped groove 121, and most of its inner part is located in the working chamber 5. The connection part 134 between the fan-shaped groove 121 and the cavity has a sealing ring to prevent the medium from flowing into the fan-shaped groove 121. The movable end of the third pressure gauge 10 is connected to a positioning rod 125. During an earthquake, the gauge C in the working chamber 5 is subjected to pressure, and its movable end retracts, causing one end of the positioning rod 125 to slide and connect in the inclined groove 124, thereby causing the annular plate 122 to rotate. The linkage 13 includes a rack 131 fixedly connected to the inner wall of the annular plate 122. Each overflow port 6 is rotatably connected to one side of an annular bar 132. A gear ring 133 is fixedly connected to the outer wall of the annular bar 132. The rack 131 meshes with the gear ring 133. Multiple sets of connecting parts 134 are fixedly connected to the inner wall of the annular bar 132. An annular ring 135 is fixedly connected between the multiple sets of connecting parts 134. An opening 136 is provided on the connecting part 134. A limit rod 137 is inserted into the opening 136. The limit rod 137 is slidably connected to the opening 136. Depend on Figures 3 to 6 It is known that a toothed ring 133 is fixed on the inner wall of the annular plate 122. As can be seen from the above, an inclined groove 124 is provided on the annular plate 122. When the positioning rod 125 is slidably connected in the inclined groove 124, the annular plate 122 is driven to rotate under the deflection of the inclined groove 124. Since the fan-shaped plate 123 is fixedly connected between the two sets of annular plates 122, the two sets of annular plates 122 rotate at the same time, and the rotation angle of the annular plate 122 is limited by the inclined groove 124. At the same time, two sets of annular bars 132 are symmetrically rotated on the outer side of the bushing 3, and a toothed ring 133 is fixedly connected to the outer wall of the annular bar 132. Since the toothed ring 133 meshes with the toothed rack 131, it drives the two sets of annular bars 132 to rotate synchronously. The bushing 3 is symmetrically provided with multiple sets of sliding grooves 138 on one side. The two sets of adjacent sliding grooves 138 at both ends intersect. Sliding plates 139 are slidably connected in the sliding grooves 138 at both ends. The sliding plate 139 includes a first abutment surface 140 and a second abutment surface 141. The abutment surface 140 and the second abutment surface 141 form an acute angle. Adjacent sliding plates 139 are fitted together through the abutment surface 140 and the second abutment surface 141. A change port 142 is formed between the multiple sets of sliding plates 139. The change port 142 corresponds to the position of the overflow port 6. The annular ring 135 is provided on the outside of the sliding plate 139. The limiting rod 137 passes through one end of the sliding plate 139 and is provided in the sliding groove 138. Depend on Figures 5 to 11It is known that there are six chutes in each group 138. All chutes 138 are elongated structures. Adjacent groups of chutes 138 intersect. Each group of chutes 138 is slidably connected to a sliding plate 139 by a limiting rod 137. The sliding plate 139 has a triangular structure. Since the other end of the limiting rod 137 is slidably connected to the opening 136 of the connecting part 134, and adjacent sliding plates 139 are in contact with each other through abutting surface 140 and abutting surface 141, a change port 142 is formed between multiple groups of sliding plates 139. The change port 142 corresponds to the position of the overflow port 6. Therefore, when the annular plate 122 is in operation, under the influence of the opening 136 and the chutes 138, the six groups of sliding plates 139 move in contact with each other, thereby causing the change port 142 to open or close.

[0030] Working principle: When gauge C has pressure, it is in a non-seismic state. When the pressure of gauge C increases, it is in a seismic state. At this time, the movable end of gauge C contracts, causing the positioning rod 125 to slide in the inclined groove 124. Under the deflection of the inclined groove 124, the annular plate 122 rotates. Since the gear ring 133 meshes with the rack 131, it drives the two sets of annular bars 132 to rotate synchronously. When the annular bars 132 rotate, they drive the annular ring 135 to rotate synchronously through the connecting part 134. Since one end of the limiting rod 137 is slidably connected in the opening 136 of the connecting part 134, and its other end passes through the sliding plate 139 and is slidably connected in the sliding groove 138, it drives the six sets of sliding plates 139 to move in contact with each other, thereby driving the change port 142 to open. At this time, the internal pressure in the working chamber 5 rises to the upper limit, the overflow valve 7 opens, and part of the medium flows into the storage chamber 4, realizing the stabilization of the damping force and thus realizing the protection function.

[0031] Example 3 Based on Embodiment 2, the following technical features are added: the auxiliary component 22 includes multiple sets of curved openings 221 provided on the bushing 3. Two sets are provided at each end of the bushing 3, and they are symmetrically arranged on the outside of the slide groove 138. Vertical parts 222 are symmetrically fixedly connected to the outer wall of the annular strip 132. An auxiliary ring 223 is fixedly connected to one end of the two sets of vertical parts 222 that penetrates the curved openings 221. The auxiliary ring 223 is provided in the storage cavity 4. Depend on Figures 3 to 11 It can be seen that the bushing 3 has symmetrical curved openings 221 at both ends. The curved openings 221 are symmetrically arranged on the outside of each set of sliding grooves 138. The curved openings 221 are arc-shaped groove structures. Vertical parts 222 are symmetrically fixed on the outside of the annular bar 132. The vertical parts 222 pass through the curved openings 221. When the annular bar 132 rotates, it synchronously drives the two sets of vertical parts 222 to rotate synchronously. The bottom ends of the two sets of vertical parts 222 are fixedly connected to auxiliary rings 223. Therefore, the annular bar 132 can drive the auxiliary rings 223 to rotate. The abutment 23 includes symmetrically arranged openings 231 in the auxiliary ring 223. Each opening 231 has an integrally formed abutment portion 232. The curved openings 221 on both sides extend inward to form vertical grooves 233. Each vertical groove 233 has a tension spring 234 fixedly connected to its inner wall. One end of the tension spring 234 is fixedly connected to an abutment rod 235. The abutment rod 235 cooperates with the abutment portion 232. Multiple sets of sealing rods 236 are linearly fixedly connected to the outer wall of the abutment rod 235. Depend on Figures 7 to 11 It can be seen that the auxiliary ring 223 is symmetrically provided with openings 231, and there can be multiple sets of openings 231. The curved openings 221 on both sides extend inward to form vertical grooves 233. The vertical grooves 233 are connected to the abutment rods 235 through tension springs 234. The tension springs 234 are carbon springs, which have high strength and are easy to use. An arc-shaped abutment part 232 is integrally formed inside the opening 231, and the abutment part 232 contacts the abutment rod 235. As can be seen from the above, when the auxiliary ring 223 rotates, it drives the abutment part 232 to rotate synchronously. Under the compression of the abutment part 232, it drives the abutment rod 235 to move outward, thereby driving multiple sets of sealing rods 236 to move outward synchronously. The flow control component 24 includes a flow control cylinder 241 that can be detachably installed in the overflow port 6. A multi-hole cylinder 242 is installed inside the flow control cylinder 241. One end of the multi-hole cylinder 242 corresponds to the overflow valve 7. Multiple sets of overflow holes 243 are symmetrically provided on the outer wall of the flow control cylinder 241. The sealing rod 236 is inserted into the overflow hole 243 accordingly.

[0032] Depend on Figures 9 to 11 It is known that the flow control cylinder 241 is detachably installed inside the overflow port 6, and the porous cylinder 242 inside it corresponds to the overflow valve 7. Since the overflow valve 7 opens during a large earthquake, the medium flows into the storage chamber 4 too fast, which may cause a sudden drop in damping force. Therefore, the present invention installs a porous cylinder 242 inside the flow control cylinder 241. The porous cylinder 242 is a metal foam block. The medium flowing out of the overflow valve 7 first passes through the porous cylinder 242, and then enters the storage chamber 4 through the flow control cylinder 241. This makes the medium flow rate smooth and avoids damping force fluctuation. At the same time, the porous block can absorb some medium and release it slowly during a large earthquake to maintain the pressure stability of the storage chamber 4 and reduce the oil replenishment frequency. Working principle: As shown in Example 2, the medium is prevented from flowing into the storage chamber 4 due to temperature influence by changing the opening and closing of the port 142. Therefore, the present invention is equipped with a secondary anti-blocking mechanism auxiliary component 21. Before an earthquake, the sealing rod 236 completely blocks the overflow hole 243. At this time, even if a little medium enters the porous cylinder 242, it cannot enter the storage chamber 4. When an earthquake occurs, the annular bar 132 drives the auxiliary ring 223 to rotate through the vertical part 222. At this time, the contact part 232 of the auxiliary ring 223 contacts the contact rod 235, thereby driving the contact rod 235 to move outward. At this time, the multiple sets of sealing rods 236 on the contact rod 235 leave the overflow hole 243, so that the medium can flow from the working chamber 5 into the storage chamber 4, realizing the stabilization of the damping force.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An overload protection viscous damper with a belt monitoring function, comprising a damper body and a piston rod arranged in the damper body, a bushing is symmetrically arranged inside the damper body, and the bushing separates the damper body into a storage cavity and a working cavity, characterized in that, It also includes, Overflow ports are symmetrically provided inside the bushings on both sides; An overflow valve is correspondingly disposed within the overflow port; The first pressure gauge and the second pressure gauge are both located at the bottom inside the storage cavity and at both ends outside the damper body, for detecting the pressure inside the storage cavity; The third pressure gauge is located at its bottom inside the working chamber, between the first and second pressure gauges, and is used to detect the pressure inside the working chamber. An adjustment component, located on one side of the overflow port, is used to open or close the overflow port.

2. The overload protection viscous damper with monitoring function according to claim 1, characterized in that, The adjustment assembly includes an annular component symmetrically arranged inside the damper body, and a linkage component is provided on the outside of the bushing. The annular component and the linkage component cooperate to open and close the overflow port.

3. The overload protection viscous damper with monitoring function according to claim 2, characterized in that: The annular component includes a fan-shaped groove disposed within the damper body. Annular plates are installed at both ends of the fan-shaped groove, and a fan-shaped plate is disposed between the two sets of annular plates. The annular plates are located within the working cavity, and one end of each annular plate on both sides is disposed on the outer wall of the bushing. Inclined grooves are provided on the outer wall of the annular plates. A positioning rod is connected to the movable end of the third pressure gauge, and the positioning rod is slidably fitted into the inclined groove.

4. The overload protection viscous damper with monitoring function according to claim 3, characterized in that, The linkage includes a rack disposed on the inner wall of the annular plate, an annular bar disposed on one side of each set of overflow ports, and a toothed ring disposed on the outer wall of the annular bar, the rack meshing with the toothed ring.

5. An overload protection viscous damper with monitoring function according to claim 4, characterized in that, The inner wall of the annular strip is provided with multiple sets of connecting parts, and an annular ring is provided between the multiple sets of connecting parts. The connecting parts are provided with corresponding openings, and a limit rod is provided in the opening. The limit rod is slidably connected in the opening.

6. An overload protection viscous damper with monitoring function according to claim 5, characterized in that, The bushing is symmetrically provided with multiple sets of sliding grooves on one side, and the two sets of sliding grooves at both ends intersect. Sliding plates are slidably connected in the corresponding sliding grooves at both ends. Each sliding plate includes an abutting surface one and an abutting surface two, which form an acute angle. Adjacent sliding plates are fitted together through the abutting surface one and the abutting surface two.

7. An overload protection viscous damper with monitoring function according to claim 6, characterized in that, A variable opening is formed between the multiple sets of sliding plates, and the position of the variable opening corresponds to the position of the overflow port. The annular ring is provided on the outside of the sliding plate, and one end of the limiting rod that passes through the sliding plate is provided in the sliding groove.

8. An overload protection viscous damper with monitoring function according to claim 7, characterized in that, It also includes an auxiliary component, which includes an auxiliary member disposed at one end of the annular strip, an abutment member disposed inside the auxiliary member, and a flow control member disposed inside the overflow port. The flow control member and the abutment member cooperate to perform secondary sealing of the overflow port.

9. An overload protection viscous damper with monitoring function according to claim 8, characterized in that, The auxiliary component includes multiple sets of curved openings on the bushing, with two sets at each end of the bushing, symmetrically arranged on the outside of the slide groove.

10. An overload protection viscous damper with monitoring function according to claim 9, characterized in that, Vertical sections are symmetrically arranged on the outer wall of each annular strip. An auxiliary ring is provided at one end of each set of vertical sections that passes through the curved opening. The auxiliary ring is located inside the storage cavity.

11. An overload protection viscous damper with monitoring function according to claim 10, characterized in that, The abutting element includes symmetrically arranged openings within the auxiliary ring, each opening having an integrally formed abutting portion. The curved openings on both sides extend inward to form vertical grooves, each groove having a tension spring on its inner wall. One end of each tension spring has an abutting rod that engages with the abutting portion. Multiple sets of sealing rods are linearly arranged on the outer wall of the abutting rod.

12. An overload protection viscous damper with monitoring function according to claim 11, characterized in that, The flow control device includes a flow control cylinder disposed inside the overflow port. The flow control cylinder has a multi-hole cylinder inside, one end of which corresponds to the overflow valve. The outer wall of the flow control cylinder is symmetrically provided with multiple sets of overflow holes, and the sealing rod is inserted into the overflow holes accordingly.

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