Long-acting durable basin type support

Abstract

The utility model provides a long-acting durable basin type support and belongs to the technical field of bridge supports. The support comprises an upper support plate, a middle sliding block, a lower support plate, a check block and an annular dustproof ring. The middle sliding block is located between the upper support plate and the lower support plate, the middle sliding block is fixedly connected with the upper support plate and is in sliding fit with the lower support plate, the middle sliding block is provided with a grease filling groove, and the surface, close to the lower support plate, of the middle sliding block is provided with a grease outlet communicated with the grease filling groove; the check block is fixed to the upper end face of the lower support plate, and an elastic piece is installed on the side wall of the check block and abuts against the peripheral side wall of the upper support plate. The upper support plate is fixedly sleeved with the annular dustproof ring, the outer edge of the annular dustproof ring is fixed to the lower support plate, and the check block is located below the annular dustproof ring. Through mutual cooperation of the grease filling groove, the elastic piece and the annular dustproof ring, sliding friction generated when the middle sliding block slides relative to the lower support plate is reduced, and normal sliding of the middle sliding block is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of bridge bearing technology, specifically relating to a long-lasting and durable pot bearing. Background Technology

[0002] Bridge bearings are important structural components that connect the superstructure and substructure of a bridge. They reliably transfer the loads and deformations (displacement and rotation) borne by the superstructure to the substructure, making them a crucial force transmission device for bridges.

[0003] In some existing support structures, there are upper support plates, sliders, and lower support plates. The upper or lower support plate is equipped with lateral blocks. In the event of an earthquake, the slider slides toward the lateral blocks, the blocks are sheared, a portion of the seismic force is consumed, the period of dominant seismic response is avoided, and the seismic force response is reduced, thereby achieving the purpose of vibration reduction.

[0004] However, when using some supports, the resistance experienced by the slider during sliding is greater than the preset resistance, which affects the normal sliding of the slider and is not conducive to the normal operation of the support. Utility Model Content

[0005] The purpose of this application is to provide a long-lasting and durable pot bearing to solve the aforementioned technical problems existing in the prior art.

[0006] This application is implemented as follows:

[0007] This application provides a long-lasting and durable pot bearing, including an upper support plate, a middle slider, a lower support plate, a stop block, and an annular dustproof ring. The middle slider is located between the upper and lower support plates, is fixedly connected to the upper support plate, and slidably engages with the lower support plate. The middle slider has a grease filling groove, and a grease outlet communicating with the grease filling groove is provided on the surface of the middle slider near the lower support plate. The stop block is fixed to the upper end face of the lower support plate, and an elastic element is installed on the side wall of the stop block, with the elastic element abutting against the peripheral side wall of the upper support plate. The annular dustproof ring is sleeved and fixed outside the upper support plate, and the outer edge of the annular dustproof ring is fixed to the lower support plate. The stop block is located below the annular dustproof ring.

[0008] The technical solution provided in this application can achieve the following beneficial effects:

[0009] In this application, a grease filling groove is provided in the intermediate slider, and a grease outlet is provided on the surface of the intermediate slider near the lower support plate to lubricate the sliding parts of the intermediate slider and the lower support plate, thereby reducing the sliding resistance of the intermediate slider. At the same time, an elastic element is provided to abut against the stop block and the upper support plate to prevent external impurities from falling into the lower support plate through the gap between the stop block and the upper support plate, thus affecting the normal sliding of the intermediate slider. In addition, an annular dustproof ring is also provided to further block the gap between the upper support plate and the lower support plate, preventing impurities from falling into the lower support plate and affecting the normal sliding of the intermediate slider, ensuring the normal operation of the support and improving the service life of the support. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a cross-sectional view of the support provided in some embodiments of this application in the transverse direction of a bridge. Figure 1 ;

[0012] Figure 2 This is a cross-sectional view of a support provided in some embodiments of this application in the longitudinal direction of a bridge;

[0013] Figure 3 This is a cross-sectional view of the support provided in some embodiments of this application in the transverse direction of a bridge. Figure 2 ;

[0014] Figure 4 This application is about Figure 3 Detailed view of point A;

[0015] Figure 5 This is a split schematic diagram of the support provided in some embodiments of this application.

[0016] In the diagram: 100-Upper support plate, 110-Assembly slot, 200-Intermediate slider, 210-Rubber plate, 220-Intermediate steel liner, 221-Grease filling slot, 300-Lower support plate, 400-Stop block, 410-Mounting slot, 500-Annular dustproof ring, 600-Elastic element, 610-Elastic body, 620-Sealing block, 710-First sealing ring, 720-Second sealing ring, 810-First sliding plate, 820-Second sliding plate, 900-Movement clearance. Detailed Implementation

[0017] The following description provides many different embodiments or examples for implementing various features of the present invention. The elements and arrangements described in the specific examples below are only for concise expression of the present invention and are merely examples, not intended to limit the present invention.

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more.

[0020] This application provides a long-lasting and durable pot bearing, see reference. Figures 1 to 3 As shown, the support includes an upper support plate 100, a middle slider 200, a lower support plate 300, a stop block 400, and an annular dustproof ring 500. Figure 1 and Figure 3 The 500mm annular dustproof ring is not shown in the diagram.

[0021] The intermediate slider 200 is located between the upper support plate 100 and the lower support plate 300. The intermediate slider 200 is fixedly connected to the upper support plate 100 and slidably engaged with the lower support plate 300. The upper support plate 100 is connected to the superstructure of the bridge, and the lower support plate 300 is connected to the substructure of the bridge. The sliding engagement between the intermediate slider 200 and the lower support plate 300 accommodates positional changes between the superstructure and substructure of the bridge. The intermediate sliding plate 200 is fixedly connected to the upper support plate 100, and can slide synchronously with the upper support plate 100 on the surface of the lower support plate 300.

[0022] The intermediate slider 200 has a grease filling groove 221, and a grease outlet communicating with the grease filling groove 221 is provided on the surface of the intermediate slider 200 near the lower support plate 300. The grease filling groove 221 is used to fill grease, and the grease can be a lubricating oil such as silicone grease. The grease flows out from the grease outlet through the grease filling groove 221 and flows to the contact surface of the intermediate slider 200 and the lower support plate 300 to lubricate the sliding parts of the intermediate slider 200 and the lower support plate 300, thereby reducing the sliding friction of the intermediate slider 200.

[0023] A stop block 400 is fixed to the upper end face of the lower support plate 300. An elastic element 600 is installed on the side wall of the stop block 400, and the elastic element 600 abuts against the peripheral side wall of the upper support plate 100. The elastic element 600 is located between the stop block 400 and the upper support plate 100, blocking the gap between them to prevent external impurities from falling into the lower support plate 300 through this gap and affecting the sliding fit between the intermediate slider 200 and the lower support plate 300. The elastic element 600 is elastic; even when located between the stop block 400 and the upper support plate 100, it will not obstruct the sliding of the upper support plate 100 relative to the lower support plate 300.

[0024] An annular dustproof ring 500 is fitted over the upper support plate 100, and the outer edge of the annular dustproof ring 500 is fixed to the lower support plate 300. The annular dustproof ring 500 directly blocks the gap between the upper support plate 100 and the lower support plate 300 in the circumferential direction of the support, further preventing external impurities from falling into the sliding surface of the lower support plate 300 from the gap between the upper support plate 100 and the lower support plate 300, thus affecting the normal sliding of the intermediate slider 200.

[0025] The stop block 400 is located below the annular dustproof ring 500. The stop block 400 is also shielded by the annular dustproof ring 500, further preventing impurities from falling into the lower support plate 300 from the gap between the stop block 400 and the upper support plate 100. At the same time, it can also shield and protect the elastic element 600, preventing the elastic element 600 from rapid weathering and aging under the influence of external environmental factors.

[0026] In this embodiment, the grease filling groove 221, the elastic element 600, and the annular dustproof ring 500 work together to reduce the sliding friction of the intermediate slider 200 relative to the lower support plate 300, reducing the probability of impurities falling onto the surface of the lower support plate 300. This reduces the sliding resistance experienced by the intermediate slider 200 during sliding, ensuring its normal sliding. Simultaneously, since the intermediate slider 200 is almost unaffected by impurities during sliding, the surface structures of the intermediate slider 200 and the lower support plate 300 remain intact, preventing or minimizing damage to the contact surfaces due to friction from impurities. This improves the durability of the support and extends its service life.

[0027] In the embodiments provided in this application, the stop block 400 and the upper support plate 100 are abutted by an elastic member 600. In the event of an earthquake, the elastic member 600 can ensure that multiple supports of the bridge connection can be subjected to force through the stop block 400, dissipating the seismic force, making full use of each support, and enhancing the shock absorption effect of the support.

[0028] In some embodiments of this application, the annular dustproof ring 500 is elastic, and can be stretched or compressed radially under external force. During the sliding of the intermediate slider 200 and the upper support plate 100 relative to the lower support plate 300, changes in the positions of the upper support plate 100 and the lower support plate 300 will stretch or compress the annular dustproof ring 500. By providing elasticity, the annular dustproof ring 500 can deform to adapt to changes in the position between the upper support plate 100 and the lower support plate 300, preventing the connection between the annular dustproof ring 500 and either the upper support plate 100 or the lower support plate 300 from disengaging due to changes in their positions.

[0029] In some embodiments, the annular dustproof ring 500 can be made of an elastic material, and the annular dustproof ring 500 itself is elastic and can be stretched. In other embodiments, the annular dustproof ring 500 can be configured as a pleated structure, and the annular dustproof ring 500 can be formed by splicing multiple pleated structures, so that the annular dustproof ring 500 can be stretched under external force.

[0030] In some embodiments of this application, the annular dustproof ring 500 is fixedly connected to the outer peripheral wall of the lower support plate 300. The annular dustproof ring 500, fixed to the outer peripheral wall of the lower support plate 300, can shield the upper surface of the lower support plate 300 and prevent impurities from accumulating on the upper surface.

[0031] In some embodiments of this application, reference is made to Figure 4 and Figure 5As shown, a first sealing ring 710 is fixed to the surface of the intermediate slider 200 near the lower support plate 300, and all grease outlets are located within the enclosed space of the first sealing ring 710. Multiple grease outlets can be provided, all located within the annular cavity formed by the first sealing ring 710. When the intermediate slider 200 slides relative to the lower support plate 300, the first sealing ring 710 restricts the grease flowing from the grease outlets within a certain range, preventing the grease from escaping and affecting the sliding fit between the intermediate slider 200 and the lower support plate 300.

[0032] In some embodiments provided in this application, reference is made to Figure 4 As shown, the elastic element 600 includes two parts: an elastic body 610 and a sealing block 620. The side wall of the stop block 400 is provided with a mounting groove 410. The elastic body 610 is installed in the mounting groove 410. At least part of the sealing block 620 is located in the mounting groove 410. The sealing block 620 is fixed to the side of the elastic body 610 away from the bottom of the mounting groove 410. At the same time, the sealing block 620 abuts against the upper support plate 100.

[0033] The elastomer 610 is generally made of rubber, possessing a certain degree of elasticity and compressibility. The sealing block 620 has higher hardness and is located on the outer side, cooperating with the elastomer 610. It can adjust the overall thickness of the elastic element 600 so that the sealing block 620 can abut against the upper support plate 100. Simultaneously, the elastomer 610 is located on the inner side and does not directly contact the upper support plate 100, effectively preventing friction between the elastomer 610 and the upper support plate 100 from affecting the structural integrity of the elastomer 610. Furthermore, the sealing block 620 can also seal the opening of the mounting groove 410, preventing direct contact between the elastomer 610 and the external environment, thus avoiding aging of the elastomer 610 under the influence of external environmental factors.

[0034] In some preferred embodiments, a first sliding plate 810 is fixed to the surface of the sealing block 620 away from the elastic body 610, and a second sliding plate 820 is fixed to the circumferential sidewall of the upper support plate 100. The first sliding plate 810 and the second sliding plate 820 are in sliding engagement. The contact between the elastic member 600 and the upper support plate 100 is actually the contact between the first sliding plate 810 and the second sliding plate 820. At the same time, the sliding engagement of the first sliding plate 810 and the second sliding plate 820 reduces the sliding resistance between the first sliding plate 810 and the second sliding plate 820, which is beneficial for the intermediate sliding plate to slide relative to the lower support plate 300 along the length extension direction of the first sliding plate 810 or the second sliding plate 820 along the stop block 400.

[0035] refer to Figures 1 to 5As shown, in some embodiments, the intermediate slider 200 includes an overlapping rubber plate 210 and an intermediate steel liner 220. The upper support plate 100 is provided with an assembly groove 110, in which the rubber plate 210 is fixed. The circumferential sidewall of the rubber plate 210 abuts against the circumferential sidewall of the assembly groove 110, restricting the deformation space of the rubber plate 210. Part of the intermediate steel liner 220 is located in the assembly groove 110 and fixed to the rubber plate 210. The other surface of the intermediate steel liner 220 away from the rubber plate 210 slides against the lower support plate 300. The grease filling groove 221 and the grease outlet are both located on the intermediate steel liner 220.

[0036] The intermediate steel liner 220 cooperates with the rubber plate 210, and the support as a whole also has a certain deformation space in the direction of gravity, which is more conducive to the transmission of load and deformation. Only part of the intermediate steel liner 220 is located in the assembly groove 110 of the upper support plate 100, and part of the intermediate steel liner 220 is located outside the assembly groove 110. This makes the surface of the upper support plate 100 close to the lower support plate 300, and there is a certain gap between the surfaces of the upper support plate 100 and the lower support plate 300 and the intermediate slider 200 that slide in contact with each other. This avoids the end face of the upper support plate 100 directly contacting the sliding surface of the lower support plate 300, which would affect the sliding of the intermediate slider 200.

[0037] The intermediate steel liner 220 has high structural strength and hardness, and the grease filling tank 221 is located on the intermediate steel liner 220, which helps maintain the structural stability of the grease filling tank 221. In addition... Figures 1 to 3 In the intermediate steel liner 220 shown, its cut position does not intersect with the grease outlet, therefore the grease outlet is not shown in the figure.

[0038] Preferably, a second sealing ring 720 is installed on the surface of the rubber sheet 210 near the intermediate steel liner 220. The hardness of the second sealing ring 720 is greater than that of the rubber sheet 210, and the second sealing ring 720 is fixed to the surface of the intermediate steel liner 220. The outer diameter of the second sealing ring 720 is the same as that of the rubber sheet 210. The second sealing ring 720 mainly serves to restrict the rubber sheet 210 from being squeezed into the gap between the intermediate steel liner 220 and the side wall of the assembly groove 110. The second sealing ring 720 restricts the deformation direction of the rubber sheet 210, preventing the rubber sheet 210 from deforming arbitrarily.

[0039] There is a movable gap 900 between the intermediate steel liner 220 and the circumferential sidewall of the assembly groove 110, for reference. Figure 4As shown. Bridges exhibit deflection and turning angles during operation, and the movable gap 900 is primarily designed to accommodate these turning spaces, facilitating flexible use of the support. In some preferred embodiments, the size of the movable gap 900 increases along the direction from the rubber plate 210 to the intermediate steel liner 220. The closer to the rubber plate 210, the smaller the size of the movable gap 900, the larger the radial dimension of the intermediate steel liner 220, the larger the connection area between it and the second sealing ring 720, and the better the support effect for the second sealing ring 720. The farther away from the rubber plate 210, the larger the movable gap 900, which is more conducive to the support adapting to the turning spaces of the bridge.

[0040] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0041] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A long-lasting and durable pot bearing, characterized in that, It includes an upper support plate (100), a middle slider (200), a lower support plate (300), a stop block (400), and an annular dustproof ring (500); The intermediate slider (200) is located between the upper support plate (100) and the lower support plate (300). The intermediate slider (200) is fixedly connected to the upper support plate (100) and slidably engaged with the lower support plate (300). The intermediate slider (200) has a grease filling groove (221). The surface of the intermediate slider (200) near the lower support plate (300) is provided with a grease outlet communicating with the grease filling groove (221). The stop block (400) is fixed to the upper end face of the lower support plate (300), and an elastic element (600) is installed on the side wall of the stop block (400), and the elastic element (600) abuts against the peripheral side wall of the upper support plate (100). The annular dustproof ring (500) is sleeved and fixed outside the upper support plate (100), the outer edge of the annular dustproof ring (500) is fixed to the lower support plate (300), and the stop block (400) is located below the annular dustproof ring (500).

2. The long-lasting and durable pot bearing according to claim 1, characterized in that, The annular dustproof ring (500) is elastic and can be stretched radially under external force.

3. The long-lasting and durable pot bearing according to claim 1, characterized in that, The annular dustproof ring (500) is fixedly connected to the outer peripheral wall of the lower support plate (300).

4. The long-lasting and durable pot bearing according to claim 1, characterized in that, The intermediate slider (200) is also fixed with a first sealing ring (710) on the surface near the lower support, and the grease outlets are all located within the enclosed space of the first sealing ring (710).

5. A long-lasting pot bearing as claimed in claim 1, wherein, The elastic element (600) includes an elastic body (610) and a sealing block (620). The side wall of the stop block (400) is provided with a mounting groove (410). The elastic body (610) is installed in the mounting groove (410). The sealing block (620) is fixed to the side of the elastic body (610) away from the bottom of the mounting groove (410). The sealing block (620) abuts against the upper support plate (100).

6. A long-lasting pot bearing according to claim 5, wherein A first sliding plate (810) is fixed to the surface of the sealing block (620) away from the elastomer (610), and a second sliding plate (820) is fixed to the circumferential sidewall of the upper support plate (100). The first sliding plate (810) and the second sliding plate (820) slide in cooperation.

7. A long-lasting pot bearing according to claim 1, wherein The intermediate slider (200) includes an overlapping rubber plate (210) and an intermediate steel liner (220). The upper support plate (100) is provided with an assembly groove (110). The rubber plate (210) is fixed in the assembly groove (110). The circumferential sidewall of the rubber plate (210) abuts against the circumferential sidewall of the assembly groove (110). Part of the intermediate steel liner (220) is located in the assembly groove (110) and fixed to the rubber plate (210). The intermediate steel liner (220) slides with the lower support plate (300). The grease filling groove (221) and the grease outlet are both provided on the intermediate steel liner (220).

8. A long-lasting and durable pot bearing according to claim 7, characterized in that, A second sealing ring (720) is installed on the surface of the rubber plate (210) near the intermediate steel liner (220). The hardness of the second sealing ring (720) is greater than that of the rubber plate (210), and the second sealing ring (720) is fixed to the surface of the intermediate steel liner (220). The outer diameter of the second sealing ring (720) is the same as that of the rubber plate (210).

9. A long-lasting and durable pot bearing according to claim 8, characterized in that, There is a movable gap (900) between the intermediate steel liner (220) and the circumferential sidewall of the assembly groove (110).

10. A long-lasting and durable pot bearing according to claim 9, characterized in that, The size of the movable gap (900) increases along the direction from the rubber plate (210) to the intermediate steel liner (220).

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