Bridge bearing protection device

Abstract

The utility model discloses a bridge support protection device, including bottom basin, the recess is seted up in bottom basin, the recess is provided with rubber board, and the rubber board top is provided with middle steel sheet, and the middle steel sheet top projects the recess, and the middle steel sheet top is provided with upper support plate, and the middle steel sheet is provided with polytetrafluoroethylene board and stainless steel sheet between upper support plate, the first connecting ring is fixedly connected with the side wall of middle steel sheet top end, and the bottom surface fixed connection of upper support plate has the second connecting ring, and the second connecting ring inner diameter is greater than the first connecting ring outer diameter, the first dustproof ring is detachably connected between the bottom surface of first connecting ring and bottom basin top, and the second dustproof ring is detachably connected between the second connecting ring and first connecting ring. The utility model can promote the dustproof effect of support, reduce the dust of outside to enter the inside of support, promote the service life of support.

Description

Technical Field

[0001] This utility model relates to the field of bridge bearing technology, and in particular to a bridge bearing protection device. Background Technology

[0002] Bridge bearings are the core force-transmitting devices connecting the superstructure (such as beams) and substructure (such as piers and abutments) of a bridge, and are key components ensuring the safe and stable operation of the bridge. In practical applications, bridge bearings are classified into different types, such as plate rubber bearings, pot rubber bearings, and spherical steel bearings.

[0003] To protect the internal structure of existing bridge bearings from dust, a protective cover is typically installed around the upper bearing plate. However, because the bottom of the cover is not sealed to the bearing, dust can easily enter through the gap between the cover and the bearing. This dust adheres to the contact surface between the PTFE and stainless steel plates, accelerating wear on the sliding surfaces and reducing the bearing's lifespan. Furthermore, accumulated dust can compress or scratch the original sealing structure, leading to seal failure. External liquids such as rainwater then seep into the bearing, causing corrosion of metal components and aging of rubber parts.

[0004] Therefore, it is necessary to develop a bridge bearing protection device to address the aforementioned defects. Utility Model Content

[0005] The purpose of this invention is to provide a bridge bearing protection device that can improve the dustproof effect of the bearing, reduce the entry of external dust into the bearing, and extend the service life of the bearing.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model discloses a bridge bearing protection device, comprising a base basin with a groove inside the base basin. A rubber plate is placed inside the groove, and a middle steel plate is placed on the top surface of the rubber plate, extending out of the groove. An upper bearing plate is placed on top of the middle steel plate, and a polytetrafluoroethylene plate and a stainless steel plate are placed between the middle steel plate and the upper bearing plate. A first connecting ring is fixedly connected to the top side wall of the middle steel plate, and a second connecting ring is fixedly connected to the bottom surface of the upper bearing plate. The inner diameter of the second connecting ring is larger than the outer diameter of the first connecting ring. A first dustproof ring is detachably connected between the bottom surface of the first connecting ring and the top surface of the base basin, and a second dustproof ring is detachably connected between the second connecting ring and the first connecting ring.

[0007] Furthermore, the first dustproof ring has an "L" shaped cross-section, and the second dustproof ring has a "U" shaped cross-section.

[0008] Furthermore, a third connecting ring is detachably connected to the bottom surface of the first connecting ring, and a fourth connecting ring is detachably connected to the bottom surface of the second connecting ring; the horizontal section of the first dustproof ring is pasted and fixed to the inner side of the bottom surface of the third connecting ring, and the vertical section of the first dustproof ring is in contact with the top surface of the basin; one end of the inner wall of the second dustproof ring is pasted and fixed to the inner side of the bottom surface of the fourth connecting ring, and the other end of the inner wall of the second dustproof ring is pasted and fixed to the outer side of the bottom surface of the third connecting ring.

[0009] Furthermore, both the third and fourth connecting rings are composed of two semicircular rings spliced ​​together, and the first and second dustproof rings are also composed of two parts spliced ​​together with the splice sealed and fixed.

[0010] Furthermore, both the first and second dustproof rings are made of fluororubber.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows: This invention forms a double seal through the installation of a first dustproof ring and a second dustproof ring. The first dustproof ring connects the first connecting ring to the top surface of the base, sealing the gap between the base and the intermediate steel plate. The second dustproof ring connects the second connecting ring to the first connecting ring, sealing the gap between the upper support plate and the intermediate steel plate. This double seal effectively blocks external dust, preventing it from contacting the sliding surface or damaging the original sealing structure, reducing the wear rate of the sliding surface, and extending the service life of the core components of the support. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a sectional view of the bridge bearing protection device of this utility model; Figure 2 for Figure 1 A magnified view of part A in the middle.

[0014] Explanation of reference numerals in the attached drawings: 1. Base basin; 2. Groove; 3. Rubber plate; 4. Intermediate steel plate; 5. Upper support plate; 6. First connecting ring; 7. Second connecting ring; 8. First dustproof ring; 9. Second dustproof ring; 10. Third connecting ring; 11. Fourth connecting ring. Detailed Implementation

[0015] The core of this utility model is to provide a bridge bearing protection device that can improve the dustproof effect of the bearing, reduce the entry of external dust into the bearing, and extend the service life of the bearing.

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In one specific embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the device includes a base basin 1, a groove 2 inside the base basin 1, a rubber plate 3 inside the groove 2, a middle steel plate 4 on the top surface of the rubber plate 3, the top surface of the middle steel plate 4 extending out of the groove 2, an upper support plate 5 on the top of the middle steel plate 4, and a polytetrafluoroethylene plate and a stainless steel plate between the middle steel plate 4 and the upper support plate 5; a first connecting ring 6 is fixedly connected to the top side wall of the middle steel plate 4, and a second connecting ring 7 is fixedly connected to the bottom surface of the upper support plate 5, the inner diameter of the second connecting ring 7 being larger than the outer diameter of the first connecting ring 6; a first dustproof ring 8 is detachably connected between the bottom surface of the first connecting ring 6 and the top surface of the base basin 1, and a second dustproof ring 9 is detachably connected between the second connecting ring 7 and the first connecting ring 6.

[0019] By sealing the gap between the first connecting ring 6 and the base 1 with the first dustproof ring 8, and sealing the annular gap between the first connecting ring 6 and the second connecting ring 7 with the second dustproof ring 9, the path of dust and rainwater is blocked through the double seal, keeping the sliding surface of the PTFE plate and the stainless steel plate clean, avoiding accelerated wear, and protecting the rubber plate 3 and metal parts from corrosion.

[0020] In one specific embodiment of this utility model, such as Figure 2 As shown, the first dustproof ring 8 has an "L" shaped cross section, and the second dustproof ring 9 has a "U" shaped cross section.

[0021] The "L" shape of the first dustproof ring 8 facilitates its installation, while the "U" shape of the second dustproof ring 9 provides elasticity and flexibility to adapt to the displacement of the support, ensuring a close fit and preventing the rigid seal from failing due to displacement.

[0022] Specifically, the bottom surface of the first connecting ring 6 is detachably connected to the third connecting ring 10, and the bottom surface of the second connecting ring 7 is detachably connected to the fourth connecting ring 11; the horizontal section of the first dustproof ring 8 is pasted and fixed to the inner side of the bottom surface of the third connecting ring 10, and the vertical section of the first dustproof ring 8 is in contact with the top surface of the base 1; one end of the inner wall of the second dustproof ring 9 is pasted and fixed to the inner side of the bottom surface of the fourth connecting ring 11, and the other end of the inner wall of the second dustproof ring 9 is pasted and fixed to the outer side of the bottom surface of the third connecting ring 10.

[0023] This design facilitates the removal and installation of the first dustproof ring 8 and the second dustproof ring 9. When the first dustproof ring 8 and the second dustproof ring 9 age, they can be replaced simply by removing the third connecting ring 10 and the fourth connecting ring 11, without disassembling the support.

[0024] Specifically, the third connecting ring 10 and the fourth connecting ring 11 are both composed of two semicircular rings spliced ​​together, and the first dustproof ring 8 and the second dustproof ring 9 are also composed of two parts spliced ​​together, with the splice joint sealed and fixed. The semicircular ring interfaces of the third connecting ring 10 and the fourth connecting ring 11 are machined with mortise and tenon joints, and after splicing, they are locked with bolts. The two parts of the dustproof ring have overlapping beveled interfaces, and sealant is applied and cured.

[0025] In one specific embodiment of this utility model, the first dustproof ring 8 and the second dustproof ring 9 are both made of fluororubber.

[0026] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0027] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A bridge bearing protection device, characterized in that: The device includes a base basin (1), a groove (2) is provided in the base basin (1), a rubber plate (3) is provided in the groove (2), a middle steel plate (4) is provided on the top surface of the rubber plate (3), the top surface of the middle steel plate (4) extends out of the groove (2), an upper support plate (5) is provided on the top of the middle steel plate (4), a polytetrafluoroethylene plate and a stainless steel plate are provided between the middle steel plate (4) and the upper support plate (5); a first connecting ring (6) is fixedly connected to the top side wall of the middle steel plate (4), a second connecting ring (7) is fixedly connected to the bottom surface of the upper support plate (5), the inner diameter of the second connecting ring (7) is larger than the outer diameter of the first connecting ring (6); a first dustproof ring (8) is detachably connected between the bottom surface of the first connecting ring (6) and the top surface of the base basin (1), and a second dustproof ring (9) is detachably connected between the second connecting ring (7) and the first connecting ring (6).

2. The bridge bearing protection device according to claim 1, characterized in that: The first dustproof ring (8) has an "L" shaped cross section, and the second dustproof ring (9) has a "U" shaped cross section.

3. The bridge bearing protection device according to claim 2, characterized in that: The bottom surface of the first connecting ring (6) is detachably connected to the third connecting ring (10), and the bottom surface of the second connecting ring (7) is detachably connected to the fourth connecting ring (11); the horizontal section of the first dustproof ring (8) is pasted and fixed to the inner side of the bottom surface of the third connecting ring (10), and the vertical section of the first dustproof ring (8) is in contact with the top surface of the basin (1); one end of the inner wall of the second dustproof ring (9) is pasted and fixed to the inner side of the bottom surface of the fourth connecting ring (11), and the other end of the inner wall of the second dustproof ring (9) is pasted and fixed to the outer side of the bottom surface of the third connecting ring (10).

4. The bridge bearing protection device according to claim 3, characterized in that: The third connecting ring (10) and the fourth connecting ring (11) are both made of two semi-circular rings spliced ​​together. The first dustproof ring (8) and the second dustproof ring (9) are also made of two parts spliced ​​together and the splice is sealed and fixed.

5. The bridge bearing protection device according to claim 1, characterized in that: The first dustproof ring (8) and the second dustproof ring (9) are both made of fluororubber.

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