Movable limiting pot type support capable of being quickly reversed

Abstract

The utility model relates to the technical field of bridge engineering, in particular to a movable limiting pot type support capable of being quickly reversed, which comprises an upper steel plate, a rubber block, a lower steel pot, a movable limiting block and a plurality of fasteners, the upper steel plate and the lower steel basin are oppositely arranged, one end of the rubber block is arranged in the lower steel basin, and the movable limiting blocks are located at the two transverse or longitudinal ends of the upper steel plate respectively. A plurality of assembling holes are formed in the periphery of the bottom face of the upper steel plate at intervals, the two movable limiting blocks are arranged in an axial symmetry mode, each movable limiting block comprises a first section and a second section, the first sections are parallel to the upper steel plate, the second sections are perpendicularly connected to the sides, facing the rubber blocks, of the first sections, and a plurality of connecting holes are formed in the first sections at intervals. A plurality of fasteners respectively penetrate through the connecting holes and the assembling holes which are correspondingly arranged to fixedly connect the movable limiting block and the upper steel plate; rapid replacement of the moving direction of the basin-type support is achieved, damage to the basin-type support body and the beam body structure is avoided, time and labor are saved, operation is convenient and fast, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a movable limit pot bearing capable of quickly reversing the direction. Background Technique

[0002] A bridge bearing is an important structural component in a bridge structure. It is installed on the pier and abutment and can transfer the load of the upper structure to the pier and abutment or the foundation. Under the action of load, temperature, concrete shrinkage and creep, the bearing can adapt to the rotation and displacement of the upper structure, so that the upper structure can deform freely without generating additional internal forces. It is an important force transmission device for bridges and is crucial for ensuring the stability and durability of bridges.

[0003] A pot bearing is a type of bridge bearing. According to the stress structure and direction of the bridge, it can be divided into two forms: sliding longitudinally or transversely along the bridge. The specific installation direction is determined according to the design drawings. However, in the actual construction process, due to the mistakes of technicians in the construction unit, the situation of incorrect installation of the bearing movement direction often occurs. If it is not discovered and solved in time, the bridge will be in a state of restricted movement for a long time after operation, posing certain safety hazards to the beam structure. In related technologies, usually, the beam body needs to be jacked up, the bearing pad stone is chiseled off, and then the bearing is removed. After changing the direction, it is reinstalled. This process is time-consuming and laborious, with high costs, and the force on the beam structure itself is affected during the jacking process, having certain safety risks.

[0004] The information disclosed in this background art section is only intended to deepen the understanding of the overall background art of the utility model and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art known to those skilled in the art. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: to provide a movable limit pot bearing capable of quickly reversing the direction, realizing the quick replacement of the movement direction of the pot bearing, and avoiding damage to the pot bearing body and the beam structure, saving time and effort, being flexible and convenient to operate, and having high safety.

[0006] In order to achieve the above object, the technical solution adopted by the utility model is: a movable limit pot bearing capable of quickly reversing the direction, comprising: an upper steel plate, a rubber block, a lower steel pot, movable limit blocks and a plurality of fasteners;

[0007] The upper steel plate and the lower steel pot are arranged opposite to each other. One end of the rubber block is arranged in the lower steel pot, and the top is attached to the side of the upper steel plate facing the lower steel pot. The movable limit blocks are arranged in pairs and are respectively located at the transverse or longitudinal ends of the upper steel plate;

[0008] Among them, a plurality of assembly holes are arranged at intervals around the bottom surface of the upper steel plate facing the lower steel basin. The two movable limit blocks are symmetrically arranged with respect to the midline of the upper steel plate. Each movable limit block is bent to form an inverted L-shaped structure, including a first segment and a second segment. The first segment is arranged parallel to the upper steel plate, and the second segment is vertically connected to the side of the first segment facing the rubber block. A plurality of connection holes are arranged at intervals along the length direction on the first segment, and the connection holes are arranged in one-to-one correspondence with the assembly holes on any side of the upper steel plate. A plurality of fasteners respectively pass through the corresponding connection holes and the assembly holes to fixedly connect the movable limit block and the upper steel plate.

[0009] Further, a limit ring is also arranged between the upper steel plate and the lower steel basin. The limit ring is arranged parallel to the upper steel plate, and the rubber block is embedded in the through hole in the middle of the limit ring.

[0010] Further, both sides of the limit ring are respectively arranged opposite to the inner side surfaces of the second segments of the two movable limit blocks, and a gap is formed between the limit ring and the second segments.

[0011] Further, the size of the gap is 1-2 mm.

[0012] Further, a tetrafluoroethylene plate is arranged on the side of the rubber block facing the upper steel plate, and the tetrafluoroethylene plate is fixedly bonded to the end surface of the rubber block.

[0013] Further, the cross-sections of the rubber block and the tetrafluoroethylene plate are circular or quadrilateral.

[0014] Further, a mirror steel plate is arranged on the side of the upper steel plate facing the lower steel basin. The mirror steel plate is welded and fixed in the middle of the upper steel plate to form an integral structure.

[0015] Further, the tetrafluoroethylene plate is arranged in contact with the mirror steel plate, and a lubricant is coated on the contact surface between the tetrafluoroethylene plate and the mirror steel plate.

[0016] Further, the lubricant is silicone grease.

[0017] Further, the middles of the upper steel plate, the mirror steel plate, the tetrafluoroethylene plate and the rubber block are located on the same vertical axis.

[0018] The beneficial effects of the present utility model are as follows: By providing a quick-release and quick-installation movable limiting block, when changing the sliding direction of the pot bearing, it can be achieved only by changing the installation direction of the movable limiting block relative to the upper steel plate. Moreover, through the connection method of the fasteners cooperating with the connection holes and assembly holes, it is possible to avoid disturbing and damaging the pot bearing body or the beam structure, ensure the integrity of the overall structure, quickly realize the switching between the longitudinal and transverse sliding of the pot bearing, the process is simple and convenient, reduce the safety risks in construction operations, and can achieve factory modular production, with strong practicability. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of the movable limiting pot bearing with quick commutation in the embodiment of the present utility model;

[0021] Figure 2 Side view of the movable limiting pot bearing with quick commutation in the embodiment of the present utility model;

[0022] Figure 3 Exploded view of the movable limiting pot bearing with quick commutation in the embodiment of the present utility model;

[0023] Figure 4 Structural schematic diagram of the upper steel plate in the embodiment of the present utility model;

[0024] Figure 5 Structural schematic diagram of the movable limiting block in the embodiment of the present utility model;

[0025] Figure 6 Position schematic diagram of the rubber block in the embodiment of the present utility model.

[0026] Reference numerals: 1, upper steel plate; 1a, assembly hole; 2, rubber block; 3, lower steel basin; 4, movable limiting block; 4a, first segment; 4b, second segment; 4c, connection hole; 5, fastener; 6, limiting ring; 7, tetrafluoroethylene plate; 8, mirror steel plate. Detailed Embodiments

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] As Figures 1 to 6 shown, the quick-switching movable limit pot bearing includes: an upper steel plate 1, a rubber block 2, a lower steel basin 3, movable limit blocks 4 and a plurality of fasteners 5;

[0031] The upper steel plate 1 and the lower steel basin 3 are arranged opposite to each other. One end of the rubber block 2 is arranged in the lower steel basin 3, and the top is attached to the side of the upper steel plate 1 facing the lower steel basin 3. The movable limit blocks 4 are arranged in pairs and are respectively located at the transverse or longitudinal ends of the upper steel plate 1.

[0032] Among them, a plurality of assembly holes 1a are arranged at intervals around the bottom surface of the side of the upper steel plate 1 facing the lower steel basin 3. The two movable limit blocks 4 are symmetrically arranged with respect to the midline of the upper steel plate 1. Each movable limit block 4 is bent to form an inverted L-shaped structure, including a first segment 4a and a second segment 4b. The first segment 4a is arranged parallel to the upper steel plate 1, and the second segment 4b is vertically connected to the side of the first segment 4a facing the rubber block 2. A plurality of connection holes 4c are arranged at intervals along the length direction on the first segment 4a. The connection holes 4c are arranged in one-to-one correspondence with the assembly holes 1a on either side of the upper steel plate 1. A plurality of fasteners 5 respectively pass through the corresponding connection holes 4c and assembly holes 1a to fixedly connect the movable limit blocks 4 and the upper steel plate 1.

[0033] By providing the quick-disassembly and quick-assembly movable limit blocks 4, when changing the sliding direction of the pot bearing, it can be achieved only by changing the installation direction of the movable limit blocks 4 relative to the upper steel plate 1. Moreover, through the connection method of the fasteners 5 cooperating with the connection holes 4c and the assembly holes 1a, it is possible to avoid disturbing and damaging the pot bearing body or the beam structure, ensure the integrity of the overall structure, quickly realize the switching between the longitudinal and transverse sliding of the pot bearing, the process is simple and convenient, reduce the safety risks in construction operations, and can realize factory modular production, with strong practicability.

[0034] It should be noted that during factory prefabrication, the pot bearing without the installed movable stop block 4 can slide horizontally or longitudinally to form a two-way sliding bearing. When the pot bearing needs to slide longitudinally, at this time, the two movable stop blocks 4 are symmetrically installed on the transverse sides of the upper steel plate 1 of the pot bearing through fasteners 5 to form a limiting effect, forming a longitudinal movable bearing. When the pot bearing needs to slide horizontally, at this time, the two movable stop blocks 4 are symmetrically installed on the longitudinal sides of the upper steel plate 1 of the pot bearing through fasteners 5 to form a limiting effect, forming a transverse movable bearing. When movable stop blocks 4 are installed on both the transverse and longitudinal directions of the upper steel plate 1, a fixed bearing is formed. This greatly simplifies the complexity of distinguishing the bearing forms for the operator, and the structural form of the pot bearing can be flexibly changed by changing the position of the movable stop block 4 during on-site installation, thereby avoiding installation errors.

[0035] On the basis of the above embodiment, a limiting ring 6 is further provided between the upper steel plate 1 and the lower steel basin 3. The limiting ring 6 is arranged parallel to the upper steel plate 1, and the rubber block 2 is embedded in the through hole in the middle of the limiting ring 6. The setting of the limiting ring 6 provides additional support for the rubber block 2, enhances the overall stability of the bearing, and ensures that the rubber block 2 maintains the correct position between the upper steel plate 1 and the lower steel basin 3, prevents deviation, ensures the uniform distribution of stress, and thus guarantees the positioning accuracy of the bearing force slip.

[0036] On the basis of the above embodiment, the two sides of the limiting ring 6 are respectively arranged opposite to the inner sides of the second segments 4b of the two movable stop blocks 4, and a gap is formed between the limiting ring 6 and the second segments 4b. The setting of the gap reserves an error for the installation of the movable stop block 4, which is convenient for installation. At the same time, it can also prevent the limiting ring 6 and the movable stop block 4 from being in a long-term direct contact state after assembly, thereby reducing wear and extending the service life of the bearing.

[0037] Preferably, the size of the gap is 1 - 2 mm, which provides a certain tolerance space for installation. Even if there are minor errors during installation, it will not immediately affect the normal use function of the bearing.

[0038] On the basis of the above embodiments, a tetrafluoroethylene plate 7 is provided on the side of the rubber block 2 facing the upper steel plate 1, and the tetrafluoroethylene plate 7 is adhesively fixed to the end face of the rubber block 2; the tetrafluoroethylene plate 7 has a variety of excellent properties. A low coefficient of friction helps to reduce the frictional resistance of the bearing during displacement, making the bearing more flexible; excellent wear resistance can protect the rubber block 2 from wear, thereby extending the service life of the bearing; good chemical stability and corrosion resistance can resist external erosion and are suitable for the complex external working environment of the bridge; the non-sticky property helps to reduce the adhesion phenomenon of the rubber block 2 during displacement and keep the bearing clean; a relatively high melting point can maintain stable performance in a high-temperature environment; good electrical insulation performance helps to prevent electrical interference and improve the safety of the bearing.

[0039] On the basis of the above embodiments, the cross-sections of the rubber block 2 and the tetrafluoroethylene plate 7 are circular or quadrilateral; a circular or quadrilateral structural form is easier to standardize and mass-produce, reduce stress concentration, and extend the service life of the rubber block 2. Different cross-sectional shapes can adapt to different bridge designs and force requirements, and specific limitations are not provided here.

[0040] On the basis of the above embodiments, a mirror steel plate 8 is provided on the side of the upper steel plate 1 facing the lower steel basin 3, and the mirror steel plate 8 is welded and fixed to the middle of the upper steel plate 1 to form an integral structure; welding and fixing can ensure the connection strength between the mirror steel plate 8 and the upper steel plate 1, and the formed integral structure can provide higher overall stiffness and stability, thus having a higher load-bearing capacity.

[0041] On the basis of the above embodiments, the tetrafluoroethylene plate 7 is in contact with the mirror steel plate 8, and a lubricant is applied to the contact surface of the tetrafluoroethylene plate 7 and the mirror steel plate 8; the lubricant prevents adhesion or corrosion phenomena on the contact surface of the tetrafluoroethylene plate 7 and the mirror steel plate 8 due to long-term contact, maintains the performance of the bearing, and can significantly reduce the coefficient of friction between the tetrafluoroethylene plate 7 and the mirror steel plate 8, reduce the resistance generated during displacement, reduce wear, and further extend the service life of the tetrafluoroethylene plate 7 and the mirror steel plate 8, facilitating maintenance.

[0042] Preferably, the lubricant is silicone grease; silicone grease has excellent high-temperature resistance and good chemical stability, is not easily chemically reactive with other components such as the rubber block 2 and the upper steel plate 1, is suitable for long-term use, and can ensure the lubrication effect in the complex application environment of the bridge.

[0043] On the basis of the above embodiments, the middles of the upper steel plate 1, the mirror steel plate 8, the tetrafluoroethylene plate 7 and the rubber block 2 are located on the same vertical axis; this improves the symmetry of the structure, helps to evenly distribute the load, prevents the structure from shifting or twisting, thereby improving the overall stability; reduces local stress concentration, thereby improving the durability of the bearing.

[0044] Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. What is described in the above-mentioned embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An active limit pot bearing with quick commutation, characterized in that Including: An upper steel plate, a rubber block, a lower steel basin, movable limit blocks and several fasteners; The upper steel plate and the lower steel basin are arranged oppositely. One end of the rubber block is arranged in the lower steel basin, and the top thereof is in contact with the side of the upper steel plate facing the lower steel basin. The movable limit blocks are arranged in pairs and are respectively located at the transverse or longitudinal ends of the upper steel plate; Among them, several assembly holes are arranged at intervals around the bottom surface of the side of the upper steel plate facing the lower steel basin. The two movable limit blocks are symmetrically arranged with respect to the central line of the upper steel plate. Each movable limit block is bent to form an inverted L-shaped structure, including a first segment and a second segment. The first segment is arranged parallel to the upper steel plate, and the second segment is vertically connected to the side of the first segment facing the rubber block. Several connection holes are arranged at intervals along the length direction on the first segment, and the connection holes are arranged in one-to-one correspondence with the assembly holes on any side of the upper steel plate. Several fasteners respectively pass through the correspondingly arranged connection holes and the assembly holes to fixedly connect the movable limit block and the upper steel plate.

2. The quick-switching movable limit pot bearing according to claim 1, characterized in that, A limit ring is also arranged between the upper steel plate and the lower steel basin. The limit ring is arranged parallel to the upper steel plate, and the rubber block is embedded in the through hole in the middle of the limit ring.

3. The quick-switching movable limited basin bearing according to claim 2, characterized in that, The two sides of the limit ring are respectively arranged opposite to the inner sides of the second segments of the two movable limit blocks, and a gap is formed between the limit ring and the second segment.

4. The quick-switching movable limit pot bearing according to claim 3, characterized in that The size of the gap is 1 - 2 mm.

5. The movable limit pot bearing capable of quick commutation according to claim 1, characterized in that, A polytetrafluoroethylene plate is arranged on the side of the rubber block facing the upper steel plate, and the polytetrafluoroethylene plate is fixedly bonded to the end face of the rubber block.

6. The quick-switching movable limit pot bearing according to claim 5, characterized in that, The cross sections of the rubber block and the polytetrafluoroethylene plate are circular or quadrilateral.

7. The quick-switching movable limit pot bearing according to claim 5, characterized in that, A mirror steel plate is arranged on the side of the upper steel plate facing the lower steel basin. The mirror steel plate is welded and fixed in the middle of the upper steel plate to form an integral structure.

8. The quick-switching movable limit pot bearing according to claim 7, characterized in that, The polytetrafluoroethylene plate is in contact with the mirror steel plate, and a lubricant is coated on the contact surface between the polytetrafluoroethylene plate and the mirror steel plate.

9. The quickly switchable movable limit pot bearing according to claim 8, wherein The lubricant is silicone grease.

10. The quick-switching movable limited-position pot bearing according to claim 7, characterized in that, The middles of the upper steel plate, the mirror steel plate, the polytetrafluoroethylene plate and the rubber block are located on the same vertical axis.

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