One-way spherical support for supporting bridge
By designing a one-way spherical support for bridge support, the combination of lower bottom plate, ball seat, spherical groove, top plate, top seat, ball body and support unit is solved, and the problem of friction between the ball seat and the top seat in the prior art is achieved with a longer service life and lower maintenance costs.
Patent Information
- Application Number
- CN202421935331.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-12
AI Technical Summary
Existing bridge support unidirectional spherical support is prone to cause large friction between the upper and lower seats, resulting in high bearing damage and maintenance costs.
A one-way spherical support for bridge support is designed. Through the combination of lower bottom plate, ball seat, spherical groove, top plate, top seat, ball body and support unit, it provides limiting function, reducing the interaction force between the ball seat and the top seat, and facilitating the replacement of support rods.
By providing a limit function, the design reduces friction between the ball seat and the top seat, extends the service life of the ball support, and facilitates replacement when the support rod is overloaded and reduces maintenance costs.
Smart Images
Figure CN222908531U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spherical bearings, in particular to a unidirectional spherical bearing for bridge support. Background Technique
[0002] Bearings are divided into fixed spherical bearings, unidirectional spherical bearings and multi-directional spherical bearings. At present, for the fixed spherical bearings adopted in domestic bridges, steel rings are added to the top plate of the bearing, and the outer circle of the steel ring is positioned with the lower seat plate; for the unidirectional spherical bearing, guide blocks are added to the top plate of the bearing, and the guide blocks form a sliding pair with both sides of the lower seat plate to guide the bearing to move in one direction. The spherical bearing uses two spherical surfaces to bear the vertical load and realize the rotation angle. This kind of bearing has strong bearing capacity, large rotation angle and relatively small overall structural size, and is widely used in China. However, for most of the existing unidirectional spherical bearings for bridge support, the upper seat and the lower seat are prone to come into contact with each other, resulting in large friction, which is easy to damage the bearing itself, and the maintenance cost is relatively high after damage.
[0003] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a unidirectional spherical bearing for bridge support is proposed. Content of the Utility Model
[0004] The purpose of the utility model is to provide a unidirectional spherical bearing for bridge support to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a unidirectional spherical bearing for bridge support, including a lower bottom plate and a ball seat fixedly connected to the middle position of the upper surface of the lower bottom plate. A spherical groove is opened at the middle position of the upper surface of the ball seat. Above the lower bottom plate, there is a top plate. A top seat is fixedly connected to the middle position of the lower surface of the top plate. A sphere is fixedly connected to the middle position of the lower surface of the top seat. A support unit is arranged between the ball seat and the top seat.
[0006] Preferably, the support unit includes card slots opened at three sides of the upper surface of the ball seat. The lower surface of the top seat extends to the upper surface of the top plate and is provided with insertion holes. A support rod penetrates through the inside of the card slot and the inside of the insertion hole.
[0007] Preferably, first chamfers are arranged at the corners of the upper surface of the ball seat, and the number of the first chamfers is three.
[0008] Preferably, second chamfers are arranged at the corners of the lower surface of the top seat, and the number of the second chamfers is three.
[0009] Preferably, first fitting grooves are opened at three sides of the upper surface of the lower bottom plate, and the first fitting grooves are opened on the original preset holes of the lower bottom plate.
[0010] Preferably, second fitting grooves are provided at three sides of the lower surface of the top plate, and the second fitting grooves are provided on the original preset holes of the top plate.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] With the settings of the lower bottom plate, ball seat, spherical groove, top plate, top seat, sphere, support unit, card slot, jack, and support rod in the present utility model, when installing this spherical bearing, the sphere on the top seat should fit inside the spherical groove, and then the support rod is inserted into the card slot through the jack. This support unit can provide a good limiting function, prevent excessive rotation between the ball seat and the top seat, reduce the mutual force between the ball seat and the top seat, improve the service life of the overall spherical bearing, and when the support rod undergoes overload deformation, this design can also facilitate the replacement of the support rod. Description of the Drawings
[0013] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present utility model;
[0014] Figure 2 is Figure 1 a schematic three-dimensional structure diagram of the lower half of the present utility model;
[0015] Figure 3 is Figure 1 a schematic three-dimensional structure diagram of the upper half of the present utility model.
[0016] In the figure: 1, lower bottom plate; 2, ball seat; 3, spherical groove; 4, top plate; 5, top seat; 6, sphere; 7, support unit; 71, card slot; 72, jack; 73, support rod; 8, first chamfer; 9, second chamfer; 10, first fitting groove; 11, second fitting groove. Detailed Embodiment
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0018] Such as Figures 1-3As shown in the figure, a unidirectional spherical bearing for bridge support includes a lower base plate 1 and a spherical seat 2 fixedly connected to the middle position of the upper surface of the lower base plate 1. A spherical groove 3 is opened at the middle position of the upper surface of the spherical seat 2. Above the lower base plate 1, there is a top plate 4. A top seat 5 is fixedly connected to the middle position of the lower surface of the top plate 4. A sphere 6 is fixedly connected to the middle position of the lower surface of the top seat 5. A support unit 7 is arranged between the spherical seat 2 and the top seat 5. The support unit 7 includes a clamping groove 71 opened at three sides of the upper surface of the spherical seat 2. The lower surface of the top seat 5 extends to the upper surface of the top plate 4 and is provided with an insertion hole 72. A support rod 73 is arranged through the inside of the insertion hole 72 in the inside of the clamping groove 71.
[0019] By adopting the above technical solution, when installing this spherical bearing, the sphere 6 on the top seat 5 should fit inside the spherical groove 3, and then the support rod 73 is inserted into the clamping groove 71 through the insertion hole 72. This support unit 7 can provide a good limiting function, prevent excessive rotation between the spherical seat 2 and the top seat 5, reduce the mutual force between the spherical seat 2 and the top seat 5, and improve the service life of the overall spherical bearing. When the support rod 73 undergoes overload deformation, this design can also facilitate the replacement of the support rod 73.
[0020] As Figures 2-3 shown in the figure, at the corners of the upper surface of the spherical seat 2, there are first chamfers 8, and the number of the first chamfers 8 is three.
[0021] Furthermore, at the corners of the lower surface of the top seat 5, there are second chamfers 9, and the number of the second chamfers 9 is three. The opening of the first chamfers 8 and the second chamfers 9 can provide space for the displacement between the spherical seat 2 and the top seat 5.
[0022] Furthermore, on the upper surface of the lower base plate 1, at three sides, there are first fitting grooves 10, and the first fitting grooves 10 are opened on the original preset holes of the lower base plate 1.
[0023] Furthermore, on the lower surface of the top plate 4, at three sides, there are second fitting grooves 11, and the second fitting grooves 11 are opened on the original preset holes of the top plate 4. The first fitting grooves 10 and the second fitting grooves 11 can prevent the bolts from being exposed and facilitate the installation of washers in the later stage.
[0024] Working principle: When using this unidirectional spherical bearing for bridge support, first, when installing this spherical bearing, the sphere 6 on the top seat 5 should fit inside the spherical groove 3, and then the support rod 73 is inserted into the clamping groove 71 through the insertion hole 72. This support unit 7 can provide a good limiting function, prevent excessive rotation between the spherical seat 2 and the top seat 5, reduce the mutual force between the spherical seat 2 and the top seat 5, and improve the service life of the overall spherical bearing. When the support rod 73 undergoes overload deformation, this is the working principle of this unidirectional spherical bearing for bridge support.
Claims
1. A one-way spherical bearing for bridge support, comprising a lower base plate (1) and a ball seat (2) fixedly connected to the middle position of the upper surface of the lower base plate (1), characterized in that: A spherical groove (3) is provided in the middle of the upper surface of the ball seat (2); a top plate (4) is provided above the lower base plate (1); a top seat (5) is fixedly connected to the middle of the lower surface of the top plate (4); a sphere (6) is fixedly connected to the middle of the lower surface of the top seat (5); and a support unit (7) is provided between the ball seat (2) and the top seat (5).
2. A one-way spherical bearing for bridge support according to claim 1, characterized in that: The support unit (7) comprises a slot (71) provided at three sides of the upper surface of the ball seat (2); a plug hole (72) is provided on the lower surface of the top seat (5) extending to the upper surface of the top plate (4); a support rod (73) is provided inside the slot (71) and passes through the plug hole (72).
3. The one-way spherical bearing for bridge support according to claim 1, characterized in that: The upper surface corners of the ball seat (2) are provided with first chamfers (8), and the number of the first chamfers (8) is three.
4. The one-way spherical bearing for bridge support according to claim 1, characterized in that: Second chamfers (9) are arranged at the corners of the lower surface of the top seat (5), and the number of the second chamfers (9) is three.
5. The one-way spherical bearing for bridge support according to claim 1, characterized in that: The upper surface of the lower base plate (1) is provided with first fitting grooves (10) at three sides thereof, and the first fitting grooves (10) are provided on the original preset holes of the lower base plate (1).
6. The one-way spherical bearing for bridge support according to claim 1, characterized in that: Second fitting grooves (11) are provided at three sides of the lower surface of the top plate (4), and the second fitting grooves (11) are provided on the original preset holes of the top plate (4).