Lateral elastic anti-drawing spherical support
By designing structures such as anti-pull flanges, anti-pull rings, leaf springs, and damping slide plates in the spherical bearing, a layered design of horizontal lateral elasticity and vertical anti-pull function is achieved, solving the problems of large structural size and stress concentration in existing spherical bearings, and improving the reliability and sliding rotation effect of the bearing.
Patent Information
- Application Number
- CN202423026386.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing spherical bearings typically have their horizontal lateral elasticity and vertical tensile strength functions set on the same plane, resulting in a large bearing structure plane size and problems such as large cantilever size and large stress amplitude in the tensile strength structure, which affects the reliability of the bearing structure.
A lateral elastic pull-out spherical support was designed. A pull-out flange and a pull-out ring are set between the upper support plate and the middle plate to form a vertical pull-out function. A second pull-out plate and a first pull-out plate are set between the middle plate and the lower support plate to form a vertical pull-out function. A leaf spring and a lateral elastic limiting plate are used to achieve a horizontal lateral elastic function. A damping slide plate increases the damping effect. The horizontal lateral elastic function and the vertical pull-out function are designed in layers to avoid the corner jamming phenomenon of traditional structures.
The planar dimensions of the support structure were reduced, the reliability of the support was improved, the problem of large stress amplitude was avoided, and the independent design of horizontal lateral elasticity and vertical pull-out resistance was realized, which enhanced the rotational support and sliding effect of the support.
Smart Images
Figure CN223620778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spherical bearing technology, specifically a lateral elastic pull-out spherical bearing. Background Technology
[0002] Bridges are vital engineering projects, and their seismic performance determines the efficiency of earthquake relief and post-disaster reconstruction. Bearings are one of the main components of a bridge and a crucial device for improving its seismic resistance. Commonly used bridge bearings include plate rubber bearings, pot rubber bearings, spherical bearings, lead-core rubber bearings, high-damping rubber bearings, and friction pendulum bearings. Among these, spherical bearings are widely used due to their high load-bearing capacity, excellent durability, and good economic efficiency.
[0003] The horizontal elasticity and vertical pull-out resistance of existing spherical bearings are usually set in the same plane, resulting in a large planar dimension of the bearing structure. At the same time, the large cantilever size of the pull-out resistance structure leads to a large stress amplitude, which affects the reliability of the bearing structure. Therefore, a lateral elastic pull-out spherical bearing is proposed to optimize the existing technology. Utility Model Content
[0004] The purpose of this invention is to provide a lateral elastic pull-out spherical support to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A lateral elastic pull-out spherical bearing includes an upper support plate and a lower support plate. The lower support plate is disposed below the upper support plate. An intermediate plate is disposed above the lower support plate, with its top inserted into the inner side of the upper support plate. A spherical crown plate is disposed between the top of the intermediate plate and the upper support plate. A pull-out resistance ring protruding inward is provided at the bottom opening of the upper support plate. A pull-out resistance flange is provided at the top edge of the intermediate plate, overlapping the pull-out resistance ring. This allows the pull-out resistance ring to limit the pull-out resistance flange. The lower support plate is symmetrically fixed on both sides. A first tensile plate is connected, and a second tensile plate is fixedly connected to the bottom of the intermediate plate corresponding to the first tensile plate. The second tensile plate is inserted between the first tensile plate and the lower support plate and is movably connected. The upper and lower surfaces of the second tensile plate are respectively in contact with the corresponding surfaces of the first tensile plate and the lower support plate. Side spring limiting plates are fixedly connected to both ends of the first tensile plate. The side spring limiting plates are fixedly connected to the lower support plate. Leaf springs are provided on all four sides of the middle part of the intermediate plate. The ends of the leaf springs abut against the inner walls of the side spring limiting plates. The leaf springs are in contact with the top surface of the first tensile plate.
[0007] As a further embodiment of this utility model: the upper support plate has first fixing holes symmetrically and equidistantly opened on both sides, and the lower support plate has second fixing holes symmetrically opened at the gap between the first anti-pull plate and the side spring limiting plate.
[0008] As a further embodiment of this utility model: a flat sliding plate is embedded on the top surface of the spherical crown plate, the flat sliding plate abuts against the top inner wall of the upper support plate, and the flat sliding plate is in close contact with the upper support plate; a curved sliding plate is embedded on the top of the middle plate, the curved sliding plate abuts against the spherical surface of the spherical crown plate, and the curved sliding plate is in close contact with the spherical crown plate; a damping sliding plate is embedded at the bottom of the middle plate, the damping sliding plate abuts against the top surface of the lower support plate, and the damping sliding plate is in close contact with the lower support plate and damped movement.
[0009] As a further improvement of this utility model: sealing rings are provided on the outer sides of the flat slide plate, curved slide plate, and damping slide plate. The three sealing rings are respectively embedded in the top surface of the crown plate, the top surface of the middle plate, and the bottom surface of the middle plate. The three sealing rings are respectively set between the upper support plate and the crown plate, between the crown plate and the middle plate, and between the middle plate and the lower support plate. The sealing rings seal the gaps between the upper support plate and the crown plate, between the crown plate and the middle plate, and between the middle plate and the lower support plate, thereby achieving the effect of isolating and protecting the flat slide plate, curved slide plate, and damping slide plate.
[0010] As a further embodiment of this utility model: an anti-pull-out bolt is circumferentially passed through the anti-pull-out ring, the anti-pull-out bolt is inserted into the bottom opening end face of the upper support plate and threadedly connected, the anti-pull-out ring is provided with a through hole for the anti-pull-out bolt to pass through, and the upper support plate is provided with a threaded hole for the anti-pull-out bolt to be inserted and threadedly connected.
[0011] As a further embodiment of this utility model: a fixing bolt passes through the middle of the leaf spring, the fixing bolt is inserted into the intermediate plate and fixedly connected to the intermediate plate, a round hole for the fixing bolt to pass through is provided on the leaf spring, and a threaded hole for the fixing bolt to be inserted and threadedly connected is provided on the intermediate plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model forms a vertical anti-pull-out function between the upper support plate and the middle plate through the anti-pull-out flange and the anti-pull-out ring. It also forms a vertical anti-pull-out function between the middle plate and the lower support plate through the cooperation of the second anti-pull-out plate and the first anti-pull-out plate. The middle plate is elastically supported by the leaf spring and the side spring limiting plate. At the same time, the damping slide plate makes the middle plate slide on the lower support plate to form a damping effect, which increases the horizontal side spring function formed by the leaf spring. Thus, a horizontal side spring function is formed. The horizontal side spring function and the vertical anti-pull-out function are designed in a vertical layer, which reduces the planar size of the support structure, avoids the problem of large stress amplitude caused by the large cantilever size of the support anti-pull-out structure, and increases the reliability of the support structure.
[0014] 2. In this utility model, the spherical crown plate moves in contact with the upper support plate via a flat sliding plate, and the middle plate moves in contact with the spherical crown plate via a curved sliding plate, thereby forming a rotational support effect. The middle plate is elastically supported by a leaf spring in conjunction with a side spring limiting plate. The second anti-pull plate is inserted between the first anti-pull plate and the lower support plate and is movably connected, thereby forming a horizontal sliding effect. The support rotation structure and the horizontal sliding structure are designed separately, avoiding the phenomenon of corner jamming in traditional structures. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a lateral elastic pull-out spherical support.
[0016] In the diagram: 1. Upper support plate; 1-1. Anti-pull ring; 1-2. Anti-pull bolt; 2. Flat sliding plate; 3. Spherical crown plate; 4. Curved sliding plate; 5. Lower support plate; 5-1. First anti-pull plate; 5-2. Side spring limiting plate; 6. Damping sliding plate; 7. Intermediate plate; 7-1. Anti-pull flange; 7-2. Second anti-pull plate; 8. Leaf spring; 9. Fixing bolt; 10. Sealing ring. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. 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.
[0018] Please see Figure 1In this embodiment of the present invention, a lateral elastic pull-out spherical support includes an upper support plate 1 and a lower support plate 5. The lower support plate 5 is disposed below the upper support plate 1, and an intermediate plate 7 is disposed above the lower support plate 5. The top of the intermediate plate 7 is inserted into the inner side of the upper support plate 1. A spherical crown plate 3 is disposed between the top of the intermediate plate 7 and the upper support plate 1. An inwardly protruding pull-out ring 1-1 is provided at the bottom opening of the upper support plate 1. An pull-out flange 7-1 is provided at the top edge of the intermediate plate 7. The pull-out flange 7-1 overlaps with the pull-out ring 1-1, thereby limiting the pull-out flange 7-1 through the pull-out ring 1-1. The two sides of the lower support plate 5 are symmetrically fixed. A first tensile plate 5-1 is attached. A second tensile plate 7-2 is fixedly connected to the bottom of the intermediate plate 7 corresponding to the first tensile plate 5-1. The second tensile plate 7-2 is inserted between the first tensile plate 5-1 and the lower support plate 5 and is movably connected. The upper and lower surfaces of the second tensile plate 7-2 are respectively in contact with the corresponding surfaces of the first tensile plate 5-1 and the lower support plate 5. Side spring limiting plates 5-2 are fixedly connected to both ends of the first tensile plate 5-1. The side spring limiting plates 5-2 are fixedly connected to the lower support plate 5. Leaf springs 8 are provided on all four sides of the middle part of the intermediate plate 7. The ends of the leaf springs 8 abut against the inner wall of the side spring limiting plates 5-2. The leaf springs 8 are in contact with the top surface of the first tensile plate 5-1.
[0019] The anti-pull-out flange 7-1 and the anti-pull-out ring 1-1 form a vertical anti-pull-out function between the upper support plate 1 and the intermediate plate 7. The cooperation of the second anti-pull-out plate 7-2 and the first anti-pull-out plate 5-1 forms a vertical anti-pull-out function between the intermediate plate 7 and the lower support plate 5. The leaf spring 8, in conjunction with the side spring limiting plate 5-2, provides elastic support for the intermediate plate 7. At the same time, the damping slide plate 6 allows the intermediate plate 7 to slide on the lower support plate 5 to form a damping effect, which increases the horizontal side spring function formed by the leaf spring 8, thus constituting a horizontal side spring function. The horizontal side spring function and the vertical anti-pull-out function are designed in a vertical layer, which reduces the planar size of the support structure, avoids the problem of large stress amplitude caused by the large cantilever size of the support anti-pull-out structure, and increases the reliability of the support structure.
[0020] The upper support plate 1 has first fixing holes symmetrically and equidistantly opened on both sides, and the lower support plate 5 has second fixing holes symmetrically opened at the gap between the first pull-out plate 5-1 and the side spring limiting plate 5-2.
[0021] The upper support plate 1 and the lower support plate 5 can be easily fixed and installed by the first fixing hole and the second fixing hole.
[0022] A flat sliding plate 2 is embedded on the top surface of the spherical crown plate 3. The flat sliding plate 2 abuts against the top inner wall of the upper support plate 1. The flat sliding plate 2 and the upper support plate 1 are in close contact and movable. A curved sliding plate 4 is embedded on the top of the middle plate 7. The curved sliding plate 4 abuts against the spherical surface of the spherical crown plate 3. The curved sliding plate 6 and the spherical crown plate 3 are in close contact and movable. A damping sliding plate 6 is embedded at the bottom of the middle plate 7. The damping sliding plate 6 abuts against the top surface of the lower support plate 5. The damping sliding plate 6 and the lower support plate 5 are in close contact and movable with damping.
[0023] The cooperation of the flat sliding plate 2 and the curved sliding plate 4 increases the smoothness of sliding between the upper support plate 1 and the spherical crown plate 3 and between the spherical crown plate 3 and the middle plate 7. At the same time, the damping sliding plate 6 makes the middle plate 7 slide on the lower support plate 5 to form a damping effect, which increases the horizontal side spring function formed by the leaf spring 8.
[0024] Sealing rings 10 are provided on the outer sides of the flat sliding plate 2, the curved sliding plate 4, and the damping sliding plate 6. The three sealing rings 10 are respectively embedded in the top surface of the spherical crown plate 3, the top surface of the middle plate 7, and the bottom surface of the middle plate 7. The three sealing rings 10 are respectively set between the upper support plate 1 and the spherical crown plate 3, between the spherical crown plate 3 and the middle plate 7, and between the middle plate 7 and the lower support plate 5. The sealing rings 10 seal the gaps between the upper support plate 1 and the spherical crown plate 3, between the spherical crown plate 3 and the middle plate 7, and between the middle plate 7 and the lower support plate 5, thereby achieving the effect of isolating and protecting the flat sliding plate 2, the curved sliding plate 4, and the damping sliding plate 6.
[0025] The spherical crown plate 3 is in contact with the upper support plate 1 via the flat sliding plate 2, and the middle plate 7 is in contact with the spherical crown plate 3 via the curved sliding plate 4, thus forming a rotational support effect. The middle plate 7 is elastically supported by the leaf spring 8 in conjunction with the side spring limiting plate 5-2. The second anti-pull plate 7-2 is inserted between the first anti-pull plate 5-1 and the lower support plate 5 and is movably connected, thus forming a horizontal sliding effect. The support rotation structure and the horizontal sliding structure are designed separately, avoiding the phenomenon of corner jamming in traditional structures.
[0026] An anti-pull-out bolt 1-2 is passed through the circumference of the anti-pull-out ring 1-1. The anti-pull-out bolt 1-2 is inserted into the bottom opening end face of the upper support plate 1 and is threaded. The anti-pull-out ring 1-1 has a through hole for the anti-pull-out bolt 1-2 to pass through. The upper support plate 1 has a threaded hole for the anti-pull-out bolt 1-2 to be inserted and threaded. The anti-pull-out ring 1-1 can be a combination of two semi-circular rings.
[0027] A fixing bolt 9 passes through the middle of the leaf spring 8. The fixing bolt 9 is inserted into the intermediate plate 7 and fixedly connected to the intermediate plate 7. The leaf spring 8 has a round hole for the fixing bolt 9 to pass through, and the intermediate plate 7 has a threaded hole for the fixing bolt 9 to be inserted and threadedly connected.
[0028] The anti-pull-out ring 1-1 is fixedly installed by the anti-pull-out bolt 1-2, and the leaf spring 8 can be fixedly installed by the fixing bolt 9, thus forming a prefabricated installation effect.
[0029] The working principle of this utility model is as follows:
[0030] In use, the anti-pull flange 7-1 and the anti-pull ring 1-1 form a vertical anti-pull effect between the upper support plate 1 and the middle plate 7. The second anti-pull plate 7-2 and the first anti-pull plate 5-1 cooperate to form a vertical anti-pull effect between the middle plate 7 and the lower support plate 5. The leaf spring 8, in conjunction with the side spring limiting plate 5-2, provides elastic support for the middle plate 7. The second anti-pull plate 7-2 is inserted between the first anti-pull plate 5-1 and the lower support plate 5 and is movably connected, thereby forming a horizontal sliding elastic movement range and guide. At the same time, the damping slide plate 6 makes the middle plate 7 slide on the lower support plate 5 to form a damping effect, increasing the horizontal side spring function formed by the leaf spring 8. The spherical crown plate 3 is in contact with the upper support plate 1 through the flat slide plate 2, and the middle plate 7 is in contact with the spherical crown plate 3 through the curved slide plate 4, thereby forming a rotational support effect.
[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A lateral elastic pull-out spherical bearing, comprising an upper support plate (1) and a lower support plate (5), characterized in that: The lower support plate (5) is located below the upper support plate (1). A middle plate (7) is located above the lower support plate (5). The top of the middle plate (7) is inserted into the inner side of the upper support plate (1). A spherical crown plate (3) is located between the top of the middle plate (7) and the upper support plate (1). An inwardly protruding anti-pull-out ring (1-1) is provided at the bottom opening of the upper support plate (1). An anti-pull-out flange (7-1) is provided at the top edge of the middle plate (7). The anti-pull-out flange (7-1) overlaps with the anti-pull-out ring (1-1). The lower support plate (5) is symmetrically fixedly connected to the two sides of the lower support plate (5). A first pull-out plate (5-1) is provided. The bottom of the intermediate plate (7) is fixedly connected to the first pull-out plate (5-1) with a second pull-out plate (7-2). The second pull-out plate (7-2) is inserted between the first pull-out plate (5-1) and the lower support plate (5) and is movably connected. Both ends of the first pull-out plate (5-1) are fixedly connected with side spring limiting plates (5-2). The side spring limiting plates (5-2) are fixedly connected to the lower support plate (5). The middle plate (7) is provided with leaf springs (8) on all four sides. The ends of the leaf springs (8) abut against the inner wall of the side spring limiting plates (5-2).
2. The lateral elastic pull-out spherical support according to claim 1, characterized in that: The upper support plate (1) has first fixing holes symmetrically and equidistantly opened on both sides, and the lower support plate (5) has second fixing holes symmetrically opened at the gap between the first pull-out plate (5-1) and the side spring limiting plate (5-2).
3. The lateral elastic pull-out spherical support according to claim 1, characterized in that: The top surface of the spherical crown plate (3) is fitted with a flat sliding plate (2), which abuts against the top inner wall of the upper support plate (1). The top of the middle plate (7) is fitted with a curved sliding plate (4), which abuts against the spherical surface of the spherical crown plate (3). The bottom of the middle plate (7) is fitted with a damping sliding plate (6), which abuts against the top surface of the lower support plate (5).
4. A lateral elastic pull-out spherical support according to claim 3, characterized in that: The outer sides of the planar sliding plate (2), the curved sliding plate (4) and the damping sliding plate (6) are all provided with sealing rings (10). The three sealing rings (10) are respectively embedded in the top surface of the spherical crown plate (3), the top surface of the middle plate (7) and the bottom surface. The three sealing rings (10) are respectively set between the upper support plate (1) and the spherical crown plate (3), between the spherical crown plate (3) and the middle plate (7) and between the middle plate (7) and the lower support plate (5).
5. A lateral elastic pull-out spherical support according to claim 1, characterized in that: The anti-pull-out ring (1-1) has an anti-pull-out bolt (1-2) circumferentially inserted, and the anti-pull-out bolt (1-2) is inserted into the bottom opening end face of the upper support plate (1) and threadedly connected.
6. A lateral elastic pull-out spherical support according to claim 1, characterized in that: A fixing bolt (9) passes through the middle of the leaf spring (8), and the fixing bolt (9) is inserted into the intermediate plate (7) and fixedly connected to the intermediate plate (7).