Gravity self-resetting swing support
By designing a gravity self-reset swing support in the bridge support and using the plane and curved surface mating surface to swing the support body, the problems of complex bearing structure and high installation difficulty in the prior art are solved, and more efficient shock absorption and simplified installation process are achieved.
Patent Information
- Application Number
- CN202421533157.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing bridge support structure is complex, resulting in increased manufacturing costs and increased installation difficulty, making it difficult to effectively dissipate seismic forces.
A gravity self-reset swing support is designed. By setting a specific mating surface shape between the support body and the support plate, the support body can swing relative to the support plate by utilizing the characteristics that the plane and the curved surface cannot fit, so that the support body can swing against the support plate, thereby dissipating seismic force.
Improves shock absorption capacity of the bearing, simplifies the manufacturing process and installation steps, reduces installation difficulty, and avoids the risk of additional components.
Smart Images
Figure CN222862060U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of shock-absorbing supports, and in particular relates to a gravity self-resetting swing support. Background Art
[0002] Bridge bearings are important structural components that connect the superstructure and substructure of a bridge. They can reliably transfer the load and deformation (displacement and rotation) borne by the superstructure of the bridge to the substructure of the bridge, and are important force transmission devices of the bridge.
[0003] In existing bridge bearings, in order to improve the dissipation effect of seismic force, the structure of the bridge bearings has become increasingly complex, resulting in an increase in the manufacturing cost of the bridge bearings. In addition, the complex bearing structure makes the installation process of the bridge bearings too cumbersome, increasing the difficulty of installation. Utility Model Content
[0004] The purpose of this application is to provide a gravity self-resetting rocking support to solve the above-mentioned technical problems existing in the prior art.
[0005] This application is implemented as follows:
[0006] An embodiment of the present application provides a gravity self-resetting rocking support, comprising two support plates and a support body installed between the two support plates, wherein the surface of at least one support plate close to the support body is a first mating surface, and the surface of the support body close to the first mating surface is a second mating surface; the first mating surface comprises a first curved surface and a first plane distributed along the radial direction of the support, and the first curved surface surrounds the first plane, and the second mating surface comprises a second curved surface and a second plane distributed along the radial direction of the support, and the second curved surface surrounds the second plane; when the first plane and the second plane are arranged to fit together correspondingly, the first curved surface and the second curved surface fit together correspondingly.
[0007] The technical solution provided by this application can achieve the following beneficial effects:
[0008] In the present application, by setting the first mating surface including the first curved surface and the first plane, and setting the second mating surface including the second curved surface and the second plane, when an earthquake occurs, the support body moves relative to the support plate, so that the first plane contacts the second curved surface, and the second plane contacts the first curved surface. Since the plane and the curved surface cannot fit together, the support body can swing relative to the support plate, and the seismic force is dissipated by swinging, thereby achieving a shock-absorbing effect. The present application restricts the shape of the mating surface between the support body and the support plate, improves the shock-absorbing capacity of the support by swinging, and avoids adding additional components. Correspondingly, the production and manufacturing process and installation steps of the support can be reduced, thereby reducing the difficulty of installing the support. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0010] Figure 1 is a partial cross-sectional view of a support provided by some embodiments of the present application;
[0011] Figure 2 is a cross-sectional view of a support provided in some embodiments of the present application;
[0012] Figure 3 It is a schematic diagram of the split structure of the support provided in some embodiments of the present application;
[0013] Figure 4 is a schematic diagram of the structure of a support plate provided in some embodiments of the present application;
[0014] Figure 5 is a schematic diagram of the structure of a support body provided in some embodiments of the present application;
[0015] Figure 6 This is a schematic diagram of the swing of the support provided in some embodiments of the present application Figure 1 ;
[0016] Figure 7 This is a schematic diagram of the swing of the support provided in some embodiments of the present application Figure 2 .
[0017] In the figure: 100-support plate, 110-first mating surface, 111-first curved surface, 112-first plane, 120-limiting groove, 200-support body, 210-second mating surface, 211-second curved surface, 212-second plane, 220-first part, 230-second part, 300-wear-resistant slide plate. DETAILED DESCRIPTION
[0018] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.
[0019] In existing shock-absorbing bearings, multi-level friction is often used to increase the shock-absorbing effect of the bearing. In a multi-level friction shock-absorbing bearing, there are multiple friction matching structures, which, on the one hand, increases the production cost of the bearing, and on the other hand, increases the number of parts of the bearing, and the installation steps are more complicated and more difficult.
[0020] In view of this, the embodiment of the present application provides a gravity self-resetting swing support, referring to Figures 1 to 7 As shown, the support body 200 and the support plate 100 are swung together to improve the shock absorbing effect of the support.
[0021] refer to Figures 1 to 3 As shown, the bearing provided in the embodiment of the present application includes two bearing plates 100 and a bearing body 200 installed between the two bearing plates 100. When the bearing is used for a bridge, the two bearing plates 100 are respectively connected to the upper structure and the lower structure of the bridge, and the bearing body 200 is installed between the two bearing plates 100. The bearing can also be used in buildings, and the two bearing plates 100 are respectively installed on the upper structure and the lower structure of the building to dissipate the seismic force when an earthquake occurs.
[0022] The surface of at least one support plate 100 close to the support body 200 is a first mating surface 110, and the surface of the support body 200 close to the first mating surface 110 is a second mating surface 210. The first mating surface 110 includes a first curved surface 111 and a first plane 112 distributed along the radial direction of the support, and the first curved surface 111 is arranged around the outside of the first plane 112. The first curved surface 111 is an annular structure, located at the outer side of the support plate 100. The second mating surface 210 includes a second curved surface 211 and a second plane 212 distributed along the radial direction of the support, and the second curved surface 211 is arranged around the outside of the second plane 212, and the second curved surface 211 is an annular structure, located at the outer side of the support body 200.
[0023] Among them, when the first plane 112 and the second plane 212 are correspondingly fitted, the first curved surface 111 and the second curved surface 211 are correspondingly fitted to ensure that the support plate 100 and the support body 200 can be in stable contact, the two can support each other, and the support can be stably installed.
[0024] In some embodiments, corresponding fit means that the first mating surface 110 and the second mating surface 210 are in direct contact, and the two form a surface contact fit, wherein the first curved surface 111 corresponds to the second curved surface 211, and the first plane 112 corresponds to the second plane 212; in other embodiments, corresponding fit may also mean that the first mating surface 110 and the second mating surface 210 are in indirect contact, and a sliding structure is provided between the two to separate them, and the two are in contact and fit through the sliding structure. The sliding structure may be a wear-resistant slide plate 300 or other structural parts. For ease of understanding, in the subsequent description, the contact between the first mating surface 110 and the second mating surface 210 may be direct contact or indirect contact.
[0025] When the support is installed, it is usually necessary to align the first plane 112 with the second plane 212, and the first curved surface 111 with the second curved surface 211, so that the support plate 100 and the support body 200 can be stably connected. In the event of an earthquake, under the influence of the earthquake force, the movable support plate 100 and the support body 200 will move relative to each other, the first plane 112 and the second plane 212 will be relatively staggered, the first plane 112 will gradually contact the second curved surface 211, and the second plane 212 will gradually contact the first curved surface 111. Since the first plane 112 and the second curved surface 211 cannot be stably contacted, and the second plane 212 cannot be stably contacted with the first curved surface 111, the support plate 100 and the support body 200 will swing, and the earthquake force will be consumed by the swing.
[0026] For reference Figure 6 As shown, one of the support plates 100 moves relative to the support body 200, and the relative position between the two changes. Figure 6 The support plate 100 in the middle and upper part can no longer fit with the support body 200, so the support plate 100 will be tilted, and the support body 200 and the support plate 100 will swing with each other in combination with the earthquake force. Figure 7 As shown, the positions of the support plate 100 and the support body 200 below are changed, and the two cannot fit together. In conjunction with the action of the earthquake force, the support plate 100 and the support body 200 swing to dissipate the earthquake force.
[0027] By limiting the contact surface between the support body 200 and the support plate 100, the support body 200 can swing with the support plate 100 to dissipate the seismic force. Compared with the friction energy dissipation in the prior art, the swing energy dissipation effect is better. At the same time, since only the contact surface between the support body 200 and the support plate 100 is limited, and no support parts are added, the manufacturing process of the support will not be too complicated. When the support is installed, the installation steps are simple, which can improve the convenience of installation and reduce the difficulty of installation.
[0028] The support body 200 may be swung in cooperation with only one of the support plates 100, and may be the support plate 100 located above the gravity of the support body 200, or may be the support plate 100 located below the gravity of the support body 200. In other embodiments, the support body 200 may be swung in cooperation with both support plates 100 at the same time, see Figure 1 and Figure 2 shown.
[0029] In addition, after the earthquake ends, the relative positions of the support plate 100 and the support body 200 remain at the position when the earthquake force ends, and the first mating surface 110 of the support plate 100 does not necessarily correspond to the second mating surface 210 of the support body 200. Figure 7 As shown, the support plate 100 below has not returned to its initial position, and the support body 200 is subjected to the force provided by the support plate 100 below. Since the second curved surface 211 is a curved surface structure, the force applied to the second curved surface 211 is perpendicular to the second curved surface 211, so that the force applied to the support body 200 from the support plate 100 below can be divided into a horizontal component and a vertical component. The horizontal component can push the support body 200 to move, thereby moving the support body 200 to its initial position, resetting the support body 200, and enabling the second mating surface 210 of the support body 200 to fit with the first mating surface 110 of the support plate 100. Similarly, the interaction force between the support plate 100 above and the support body 200 can also push the support body 200 and the support plate 100 to reset.
[0030] The first curved surface 111 and the second curved surface 211 are both annular structures, and their curvatures are the same, so that the first curved surface 111 can fit together with the second curved surface 211 to stabilize the position of the support body 200 and the support plate 100. There is a smooth transition between the first curved surface 111 and the first plane 112, and a smooth transition between the second curved surface 211 and the second plane 212. The first curved surface 111 and the second curved surface 211 can be bent toward the side where the support body 200 is located, refer to Figure 1 and Figure 2 As shown, or, in other embodiments, the first curved surface 111 and the second curved surface 211 may be curved toward the side where the support plate 100 is located.
[0031] In some preferred embodiments of the present application, reference is made to Figures 1 to 4 As shown, the support plate 100 provided with the first mating surface 110 is provided with a limiting groove 120, and the groove bottom of the limiting groove 120 is the first mating surface 110. The support body 200 is installed in the limiting groove 120, and the limiting groove 120 limits the range of movement of the support body 200 to prevent the support body 200 from moving a large distance relative to the support plate 100, resulting in the support plate 100 and the support body 200 falling.
[0032] When the support plate 100 is provided with the limiting groove 120 , in the radial direction of the support, when the support body 200 slides to the edge of the limiting groove 120 , it can abut against the groove wall of the limiting groove 120 to form a limiting fit.
[0033] In some preferred embodiments, the ring width of the first curved surface 111 is greater than or equal to twice the ring width of the second curved surface 211. The ring width refers to the value of the outer diameter of the curved surface minus the inner diameter. The first curved surface 111 is relatively large. When the support is assembled and located in the initial position, there is a certain distance between the support body 200 and the groove wall of the limiting groove 120. Figure 1 and Figure 2 As shown, there is a movable space for the support body 200, so that the second curved surface 211 can slide along the first curved surface 111 to abut against the groove wall of the limiting groove 120. The ring width of the first curved surface 111 is set to be greater than or equal to twice the ring width of the second curved surface 211 to ensure that the support body 200 has a certain movable distance relative to the support plate 100.
[0034] Further preferably, the ring width of the first curved surface 111 is smaller than the width of the support body 200 in the radial direction of the support body 200. The width of the support body 200 is its maximum width. Under such a layout, even if the support body 200 moves to abut against the groove wall of the limiting groove 120, the second matching surface 210 of the support body 200 still contacts the first curved surface 111 and the second plane 212 at the same time, so as to avoid the support plate 100 or the support body 200 from moving relatively far, and avoid the center of gravity of the support as a whole from shifting too much, which affects the structural stability of the support.
[0035] Since the support body 200 and the support plate 100 swing together, the swing amplitude of the support plate 100 is relatively large. Therefore, in order to ensure the normal operation of the support, the height of the support body 200 needs to be set higher. In some embodiments of the present application, the support body 200 includes a first part 220 and a second part 230 that are overlapped. Figure 3 and Figure 5 The first part 220 is used to be installed in the limiting groove 120, the second mating surface 210 is located in the first part 220, and the radial dimension of the first part 220 is greater than the radial dimension of the second part 230. The radial dimension of the second part 230 is smaller than that of the first part 220, so that the overall height of the support body 200 can be increased while using the same amount of material, thereby meeting the height requirement of the support body 200.
[0036] When the support body 200 is swung and matched with the two support plates 100 at the same time, the support body 200 has two first parts 220, the two first parts 220 are respectively located on both sides of the second part 230, and the two first parts 220 are respectively installed in the corresponding limiting grooves 120. The radial dimension of the first part 220 needs to be set larger, and the size of the contact area between the first part 220 and the support plate 100 needs to be ensured, so that the support body 200 and the support plate 100 are in stable contact with each other in the initial state, which is conducive to maintaining the stability of the overall structure of the support.
[0037] In the case where the support body 200 includes the first part 220 and the second part 230, when the support body 200 abuts against the limiting groove 120, it is actually the first part 220 that abuts against the groove wall of the limiting groove 120. Figure 6 and Figure 7 As shown, when the first portion 220 is in limiting cooperation with the groove wall of the limiting groove 120 , in the axial direction of the support, the first portion 220 is protruded relative to the groove opening of the limiting groove 120 .
[0038] That is to say, the side wall of the first part 220 can completely abut against the groove wall of the limiting groove 120, and part of the side wall of the first part 220 also protrudes from the limiting groove 120, so that the first part 220 can cover the groove wall of the limiting groove 120, and the contact area between the first part 220 and the limiting groove 120 can reach the maximum, avoiding the stress concentration when the first part 220 abuts against the limiting groove 120. At the same time, the edge of the first part 220 close to the second part 230 protrudes from the notch of the limiting groove 120, and the structural strength of this part of the edge is relatively weak, and its protrusion from the notch of the limiting groove 120 is conducive to the structural integrity and stability of the position support body 200.
[0039] Further preferably, when the axis of the support body 200 overlaps with the axis of the support plate 100, the surface of the first part 220 close to the second part 230 is flush with the notch of the limiting groove 120. The overlap of the axis of the support body 200 and the axis of the support plate 100 means that the support body 200 and the support plate 100 are both in the initial position, and the second mating surface 210 of the support body 200 is completely in contact with the first mating surface 110 of the support plate 100. At this time, the support is in the initial state, and the surface of the first part 220 close to the second part 230 needs to be flush with the notch of the limiting groove 120, so that the assembler can observe whether the support is installed in place; even if there is an error in the installation of the support, it is convenient for the assembler to observe and adjust the position of the support body 200 or the support plate 100.
[0040] In some other preferred embodiments of the present application, the inner diameter of the second curved surface 211 is smaller than the radial dimension of the second portion 230. The second curved surface 211 and the second portion 230 are both part of the support body 200. The second curved surface 211 is an annular structure, and its inner diameter is the radial dimension of its inner ring, which is smaller than the radial dimension of the second portion 230, indicating that the extension range of the second curved surface 211 is greater than the size difference between the first portion 220 and the second portion 230, and the lower portion of the first portion 220 corresponding to the part of the second curved surface 211 is not suspended, but supported by the second portion 230.
[0041] With such a layout, when the support body 200 is subjected to the force of the support plate 100, the second part 230 can share part of the pressure with the first part 220 to avoid the suspended part of the first part 220 from being damaged or broken relative to the second part 230, thereby improving the structural stability of the support body 200 and extending the service life of the support body 200.
[0042] In some embodiments of the present application, along the axial direction of the support, the thickness of the second part 230 can be set to be greater than or equal to three times the thickness of the first part 220. The thickness of the second part 230 has a greater impact on the height of the support body 200. The thicker the second part 230, the higher the height of the support body 200. With the same amount of manufacturing material, the thickness of the second part 230 is increased as much as possible, the thickness of the first part 220 is reduced, and the height of the manufacturing body is further increased.
[0043] In some embodiments of the present application, reference Figures 1 to 3 As shown, the second mating surface 210 is fixed with a wear-resistant slide plate 300, the shape and size of the wear-resistant slide plate 300 are adapted to the second mating surface 210, the wear-resistant slide plate 300 is located between the first mating surface 110 and the second mating surface 210, the first mating surface 110 is in direct contact with the wear-resistant slide plate 300, and the wear-resistant slide plate 300 can adjust the friction coefficient between the first mating surface 110 and the second mating surface 210. In other embodiments, the wear-resistant slide plate 300 can also be fixed to the first mating surface 110, the shape and size of the wear-resistant slide plate 300 are adapted to the first mating surface 110, and the second mating surface 210 is in direct contact with the wear-resistant slide plate 300.
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A gravity self-resetting swing support, characterized in that: The invention comprises two support plates (100) and a support body (200) installed between the two support plates (100), wherein a surface of at least one of the support plates (100) close to the support body (200) is a first mating surface (110), and a surface of the support body (200) close to the first mating surface (110) is a second mating surface (210); The first matching surface (110) comprises a first curved surface (111) and a first plane (112) distributed along the radial direction of the support, and the first curved surface (111) surrounds the first plane (112); the second matching surface (210) comprises a second curved surface (211) and a second plane (212) distributed along the radial direction of the support, and the second curved surface (211) surrounds the second plane (212); When the first plane (112) and the second plane (212) are arranged to fit together correspondingly, the first curved surface (111) and the second curved surface (211) are also fitted together correspondingly.
2. A gravity self-resetting swing support according to claim 1, characterized in that: The support plate (100) provided with the first mating surface (110) is provided with a limiting groove (120), the groove bottom of the limiting groove (120) is the first mating surface (110), the support body (200) is installed in the limiting groove (120) and can move in the limiting groove (120), and the support body (200) can be limitedly matched with the groove wall of the limiting groove (120) in the radial direction of the support.
3. A gravity self-resetting swing support according to claim 2, characterized in that: The ring width of the first curved surface (111) is greater than or equal to twice the ring width of the second curved surface (211).
4. A gravity self-resetting swing support according to claim 3, characterized in that: The annular width of the first curved surface (111) is smaller than the width of the support body (200) in the radial direction of the support.
5. The gravity self-resetting swing support according to claim 2, characterized in that: The support body (200) comprises a first part (220) and a second part (230) which are overlapped, wherein the first part (220) is used to be installed in the limiting groove (120), the second mating surface (210) is located in the first part (220), and the radial dimension of the first part (220) is greater than the radial dimension of the second part (230).
6. A gravity self-resetting swing support according to claim 5, characterized in that: When the first part (220) is in limiting cooperation with the groove wall of the limiting groove (120), in the axial direction of the support, the first part (220) is arranged to protrude relative to the groove opening of the limiting groove (120).
7. The gravity self-resetting swing support according to claim 6, characterized in that: When the axis of the support body (200) overlaps with the axis of the support plate (100), the surface of the first part (220) close to the second part (230) is flush with the notch of the limiting groove (120).
8. The gravity self-resetting swing support according to claim 5, characterized in that: The inner diameter of the second curved surface (211) is smaller than the radial dimension of the second portion (230).
9. The gravity self-resetting swing support according to claim 5, characterized in that: Along the axial direction of the support, the thickness of the second portion (230) is greater than or equal to three times the thickness of the first portion (220).
10. The gravity self-resetting swing support according to claim 1, characterized in that: A wear-resistant slide plate (300) is fixed to the second mating surface (210), and the wear-resistant slide plate (300) is located between the first mating surface (110) and the second mating surface (210).