Bridge support capable of being switched to be fixed or slide

Abstract

The utility model relates to the technical field of bridge supports, and discloses a bridge support capable of being fixed or sliding in a switchable mode. The sliding shaft is arranged on the upper side of the lower part; the upper part is movably arranged at the top of the lower part through a sliding shaft; the guide rod is arranged at the bottom of the upper part and is in sliding connection with two sides of the top of the control upper part; the limiting shaft is arranged at the bottom of the upper part through a conversion bolt and used for temporarily limiting movement of the upper part; the positioning part is mounted on the lower part, and the top of the positioning part is detachably connected with the upper part. The sliding shaft and the limiting shaft are matched with the upper part and the lower part, so that the effects of sliding and temporary limiting can be achieved, different working modes can be switched, the stability of a fixed support can be provided, the flexibility of a sliding support can also be provided, and the use requirements of a bridge in different stages or under different working conditions are met.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge supports, in particular to a bridge support which can be switched to be fixed or to slide. Background Art

[0002] Bridge bearings play a critical role in supporting and transmitting forces in bridges and large building structures. Traditional bridge bearings are typically categorized as fixed or sliding types, each designed to meet different design requirements. Fixed bridge bearings primarily limit horizontal displacement, ensuring horizontal stability; sliding bridge bearings, on the other hand, allow for a limited range of horizontal displacement to accommodate structural deformation under conditions such as temperature and load fluctuations. However, the limitations of both fixed and sliding bridge bearings are particularly pronounced in certain complex engineering environments.

[0003] To meet these complex engineering requirements, the present application proposes a bridge bearing that can switch between fixed and sliding modes. This design can be switched between fixed and sliding modes based on actual needs, providing both the stability of a fixed bridge bearing and the flexibility of a sliding bridge bearing, greatly improving the adaptability and safety of the structure.

[0004] Under certain circumstances, such as earthquakes, bridge expansion and contraction, or long-term load fluctuations, structural requirements may change. Traditional single-function bearings struggle to simultaneously meet these dynamic demands. Switchable fixed or sliding bridge bearings, however, utilize a controllable mechanism to flexibly transition between different operating modes, meeting the structural requirements at different stages or under varying operating conditions. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a bridge support that can be switched between fixed and sliding positions, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A bridge support capable of switching between fixed and sliding positions, comprising:

[0008] A lower component for bottom support;

[0009] A sliding shaft is provided on the upper side of the lower member;

[0010] The upper component is movably arranged on the top of the lower component via a sliding shaft;

[0011] The guide rod is provided at the bottom of the upper component and is slidably connected to both sides of the top of the control upper component;

[0012] The limiting shaft is arranged at the bottom of the upper component through a conversion bolt and is used to temporarily limit the movement of the limiting upper component;

[0013] The positioning piece is installed on the lower piece, and the top of the positioning piece is detachably connected to the upper piece.

[0014] Optionally, the lower component includes a lower anchor plate, a lower plate and a spherical cap;

[0015] The lower plate is arranged on the upper surface of the lower anchor plate, and the spherical cap is arranged in the lower plate.

[0016] Optionally, the upper component includes a sliding plate and an upper anchor plate;

[0017] The bottom of the sliding plate is slidably connected to the lower component via a sliding shaft;

[0018] The upper anchor plate is connected to the upper surface of the sliding plate.

[0019] Optionally, the lower anchor plate and the upper anchor plate both have a surface on one side provided with bolts.

[0020] Optionally, there are two guide rods, which are symmetrically arranged on both sides of the sliding plate.

[0021] Optionally, the positioning members are provided in two groups symmetrically arranged on both sides of the lower plate, wherein one group of positioning members includes an ear plate, a connecting rod and a fixing rod;

[0022] The ear plate is connected to the lower anchor plate by bolts, and one side thereof is pressed against the surface of the lower plate;

[0023] The connecting rod is arranged on the side of the ear plate away from the lower plate;

[0024] The fixing rod is detachably connected to the top of the connecting rod, and a side of the fixing rod away from the connecting rod is connected to the sliding plate.

[0025] The utility model provides a bridge support that can be switched to fixed or sliding, which has the following beneficial effects:

[0026] 1. By coordinating the sliding shaft and the limiting shaft with the upper and lower parts, the effects of sliding and temporary limiting can be achieved, so that different working modes can be switched, which can provide both the stability of the fixed support and the flexibility of the sliding support, adapting to the use needs of the bridge in different stages or different working conditions.

[0027] 2. Through the coordination between the limiting shaft and the positioning piece, the positioning piece can increase the stability of the upper part when it needs to be fixed for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the limit shaft structure of the utility model.

[0030] In the figure: 1. lower component; 11. lower anchor plate; 12. lower plate; 13. spherical crown; 2. sliding shaft; 3. upper component; 31. sliding plate; 32. upper anchor plate; 4. guide rod; 5. limit shaft; 51. conversion bolt; 6. positioning piece; 61. ear plate; 62. connecting rod; 63. fixing rod; 7. bolt. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0032] In the description of the present invention, it should be understood that the terms "transverse", "longitudinal", "end", "edge", "sidewall", "up", "down", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0033] This application proposes a bridge support that can be switched to fixed or sliding, which is as follows:

[0034] For reference Figure 1 The present application mainly consists of a lower component 1 located at the bottom of the support to play a supporting role, a sliding shaft 2 located at the top of the lower component 1, an upper component 3 connected to the top of the lower component 1 through the sliding shaft 2, a guide rod 4 located at the bottom of the upper component 3 to limit the positions on both sides, a limiting shaft 5 for temporarily limiting the upper component 3, and a positioning member 6 for fixing the upper component 3 for a long time; through the coordination between the structures, the support can achieve two usage methods of limited fixation and sliding during use.

[0035] For reference Figure 1 Lower component 1 provides stability at the bottom and consists of a lower anchor plate 11, a lower plate 12, and a spherical cap 13. Lower plate 12 is located on the upper surface of lower anchor plate 11 and has a U-shaped cross-section. Spherical cap 13 is located within lower plate 12. When load is applied to upper component 3, the load is transferred from upper component 3 to spherical cap 13, then from spherical cap 13 to lower component 1, and ultimately to the foundation. The spherical cap 13's spherical design evenly distributes the load and reduces local stress concentration.

[0036] For reference Figure 1 The sliding shaft 2 is located in the middle of the connection between the upper component 3 and the lower component 1, and can play an auxiliary role when the upper component 3 needs to move.

[0037] For reference Figure 1 In order to encourage the upper component 3 to move in a straight line during movement, two guide rods 4 are provided at the bottom of the upper component 3 to limit the upper component 3 from moving in a straight line. The upper component 3 includes a sliding plate 31 and an upper anchor plate 32. The bottom of the sliding plate 31 is slidably connected to the lower component 1 via a sliding shaft 2, and the upper anchor plate 32 is connected to the upper surface of the sliding plate 31. Therefore, when movement and adjustment are required, the sliding plate 31 can be moved and adjusted on the lower component 1 with the assistance of the sliding shaft 2. Although the initial cost of the bearing of the present application is relatively high, due to its high reliability, low maintenance cost and long service life, the switchable bearing has a higher overall economic benefit. The non-switchable bearing has a lower initial cost, but the long-term maintenance and replacement costs are higher, and the overall economic benefit is lower. The bearing of the present application has significant advantages in terms of functional flexibility, adaptability, maintainability, performance, seismic performance, installation convenience and overall economic benefit. Through these advantages, the switchable bearing can better meet the diverse needs of modern bridge engineering and improve the overall safety and durability of the bridge structure.

[0038] For reference Figure 1-2 After moving, it is necessary to do a limiting work to stop the movement of both sides of the upper component 3. By setting multiple limiting shafts 5 at the bottom of the sliding plate 31 in the upper component 3, the limiting shafts 5 are connected and fixed to the bottom of the sliding plate 31 through the conversion bolts 51. One side of the limiting shaft 5 is close to the spherical crown 13 of the lower component 1. At this time, the sliding shaft 2 loses the effect of assisting the movement of the sliding plate 31, prompting the limiting shaft 5 to limit the movement of the upper component 3. This adjustment is used for temporary adjustment, and the positioning member 6 is not installed at this time.

[0039] For reference Figure 1 If long-term stability is required, a positioning member 6 is added. The positioning member 6 comprises an ear plate 61, a connecting rod 62, and a fixing rod 63. The ear plate 61 is bolted to the lower anchor plate 11, with one side pressed against the surface of the lower plate 12. The connecting rod 62 is located on the side of the ear plate 61 away from the lower plate 12. The fixing rod 63 is detachably connected to the top of the connecting rod 62, and the side of the fixing rod 63 away from the connecting rod 62 is connected to the sliding plate 31. After the fixing rod 63 is connected to the sliding plate 31, the upper member 3 is fixed. After use, the positioning member 6 can also be easily disassembled, making the overall assembly and disassembly convenient.

[0040] For reference Figure 1A plurality of bolts 7 are provided on the outward side of the lower anchor plate 11 and the upper anchor plate 32 to ensure a reliable connection between the support and the structure, transfer and distribute the load, improve the overall stiffness and stability, and provide additional protection in an emergency.

[0041] In the present invention, the working steps of the device are as follows:

[0042] 1. First, when movement is required, the upper part 3 can be moved by the sliding shaft 2, and the guide rod 4 provided at the bottom of the upper part 3 plays a limiting role on the left and right sides;

[0043] 2. Secondly, the limiting effect of the guide rod 4 causes the upper component 3 to perform longitudinal linear motion during the movement;

[0044] 3. Then, when temporary limiting is required, a limiting shaft 5 is provided on the upper component 3. The limiting shaft 5 presses against the lower component 1, so that the sliding shaft 2 loses the effect of assisting the sliding of the upper component 3, thereby limiting the position of the upper component 3.

[0045] 4. Finally, when reinforcement and long-term limit fixation are required, the positioning member 6 is connected and installed on the lower part 1, and then the positioning member 6 is connected to the upper part 3. When readjustment is needed, the connection between the positioning member 6 and the upper part 3 can be disassembled.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art will appreciate that the present invention is not limited to the above embodiments and that various modifications and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such modifications and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge support capable of switching between fixed and sliding positions, characterized in that: include, A lower component (1) for bottom support; A sliding shaft (2) is provided on the upper side of the lower component (1); An upper component (3) is movably arranged on the top of the lower component (1) via a sliding shaft (2); A guide rod (4) is provided at the bottom of the upper component (3) and is slidably connected to both sides of the top of the control upper component (3); A limiting shaft (5) is provided at the bottom of the upper component (3) via a conversion bolt (51) and is used to temporarily limit the movement of the limiting upper component (3); The positioning member (6) is mounted on the lower member (1), and the top portion thereof is detachably connected to the upper member (3).

2. The switchable fixed or sliding bridge support according to claim 1, characterized in that: The lower component (1) comprises a lower anchor plate (11), a lower plate (12) and a spherical cap (13); The lower plate (12) is arranged on the upper surface of the lower anchor plate (11), the cross section of the lower plate (12) is U-shaped, and the spherical cap (13) is arranged in the lower plate (12).

3. The bridge support capable of switching between fixed and sliding positions according to claim 2, characterized in that: The upper component (3) includes a sliding plate (31) and an upper anchor plate (32); The bottom of the sliding plate (31) is slidably connected to the lower component (1) via a sliding shaft (2); The upper anchor plate (32) is connected to the upper surface of the sliding plate (31).

4. The bridge support capable of switching between fixed and sliding positions according to claim 3, characterized in that: The lower anchor plate (11) and the upper anchor plate (32) both have a bolt (7) provided on one side surface.

5. The bridge support capable of switching between fixed and sliding positions according to claim 3, characterized in that: There are two guide rods (4), which are symmetrically arranged on both sides of the sliding plate (31).

6. The bridge support capable of switching between fixed and sliding positions according to claim 2, characterized in that: The positioning members (6) are provided with two groups symmetrically arranged on both sides of the lower plate (12), wherein one group of positioning members (6) includes an ear plate (61), a connecting rod (62) and a fixing rod (63); The ear plate (61) is connected to the lower anchor plate (11) by bolts, and one side thereof is pressed against the surface of the lower plate (12); The connecting rod (62) is provided on a side of the ear plate (61) away from the lower plate (12); The fixing rod (63) is detachably connected to the top of the connecting rod (62), and the side of the fixing rod (63) away from the connecting rod (62) is connected to the sliding plate (31).

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