Steel casting reinforced large-corner spherical support

Abstract

The utility model relates to the technical field of spherical supports, and discloses a steel casting reinforced large-corner spherical support which comprises a lower support plate, the top of the lower support plate is fixedly connected with a fixing seat, the fixing seat is connected with an upper support plate through an installation assembly, the middle end of the outer side of the fixing seat is provided with an annular groove, and the outer side of the annular groove is provided with a steel casting. A front retaining ring and a rear retaining ring are detachably connected to the front side and the rear side of the inner wall of the annular groove, U-shaped blocks are fixedly connected to the left end and the right end of the outer side of the front retaining ring, the U-shaped blocks are connected with pitched roof positioning blocks through reset assemblies, threaded rods are in threaded connection to the top and bottom ends of the front sides of the U-shaped blocks, and trapezoidal blocks are rotationally connected to the rear sides of the threaded rods. According to the utility model, in the aspects of protection and maintenance, a traditional integrally-formed protective cover is abandoned, the detachable front retaining ring and the detachable rear retaining ring are adopted, the convex block and the groove are matched, and other structures are adopted, so that daily maintenance and replacement are facilitated, rainwater infiltration is effectively prevented through the front sealing gasket and the rear sealing gasket, and the service life of the support is remarkably prolonged.

Description

Technical Field

[0001] This utility model relates to the field of spherical bearing technology, and in particular to a cast steel reinforced large-angle spherical bearing. Background Technology

[0002] Cast steel reinforced large-angle spherical bearings are support devices used in engineering structures such as bridges. Primarily made of cast steel, they possess strong load-bearing capacity and structural strength. Their core function is to achieve a large rotation angle through special design, while also accommodating the horizontal displacement requirements of the structure. This effectively distributes loads, mitigates structural deformation, and enhances the stability and safety of the project under load. They are suitable for applications requiring high rotational performance, load-bearing capacity, and durability, such as long-span bridges and buildings in earthquake-prone areas.

[0003] However, existing spherical bearings still have the following technical problems in use:

[0004] The interior of the support typically contains precision components such as a spherical PTFE plate, a steel liner, and sliding friction pairs. These components bear loads, displacements, and rotations over long periods and are susceptible to corrosion from the external environment (such as rainwater, dust, and salt spray). Therefore, existing technologies often use protective covers to protect the internal structure. However, most of the protective covers in existing technologies are one-piece molded structures, which are susceptible to corrosion and aging after long-term use, and are difficult to replace and inspect because they are not disassembled. Furthermore, in terms of load bearing, pull-out anchors are prone to stress relaxation after long-term tension, and there is often a risk of anchorage failure after an earthquake, making it difficult to ensure the stability of the structure.

[0005] In response to this technical problem, this application proposes a cast steel reinforced large-angle spherical support. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the difficulty in replacing and inspecting one-piece molded protective covers, the susceptibility of anti-pull-out anchor bolts to stress relaxation, the high risk of anchor failure after earthquakes, and insufficient structural stability. This invention proposes a cast steel reinforced large-angle spherical bearing. This structure eliminates the need for traditional one-piece molded protective covers in terms of protection and maintenance. It employs detachable front and rear buckles, along with protrusions and grooves, facilitating daily inspection and replacement. Furthermore, the front and rear sealing gaskets effectively prevent rainwater infiltration, significantly extending the bearing's service life.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A reinforced cast steel large-angle spherical bearing includes a lower support plate, a fixed seat fixedly connected to the top of the lower support plate, an upper support plate connected to the fixed seat via an installation assembly, an annular groove formed at the middle of the outer side of the fixed seat, a front retaining ring and a rear retaining ring detachably connected to the front and rear sides of the inner wall of the annular groove, a U-shaped block fixedly connected to both the left and right ends of the outer side of the front retaining ring, a slanted positioning block connected to the U-shaped block via a reset assembly, a screw threaded to both the top and bottom ends of the front side of the U-shaped block, a trapezoidal block rotatably connected to the rear side of the screw, a front sealing gasket fixedly connected to both the top and bottom sides of the front retaining ring, a rear sealing gasket fixedly connected to both the top and bottom sides of the rear retaining ring, the rear sealing gasket connected to the front sealing gasket via a connecting assembly, and an I-shaped block fixedly connected to both the left and right ends of the outer side of the rear retaining ring, the I-shaped block and the U-shaped block being detachably connected.

[0009] Furthermore, an anchor block is detachably connected to the bottom of the lower support plate, and limit grooves are provided at the top of the front and rear sides of the lower support plate. A connecting plate is detachably connected to the inner wall of the limit groove, and the connecting plate is connected to the anchor block by a fixing bolt.

[0010] Furthermore, the mounting assembly includes a spherical polytetrafluoroethylene (PTFE) plate, which is disposed inside the fixing base. A spherical steel liner is detachably connected to the top of the spherical PTFE plate. A flat PTFE plate is disposed on the top of the spherical steel liner. A stainless steel plate is disposed on the top of the flat PTFE plate. The stainless steel plate is fixedly connected to the middle of the bottom of the upper support plate.

[0011] Furthermore, the reset assembly includes a slide rod, which is fixedly connected to the rear end of the inner wall of the U-shaped block. The slide rod is slidably connected to the inclined top positioning block, and a spring is sleeved on the outer side of the slide rod.

[0012] Furthermore, one end of the spring is fixedly connected to the inner wall of the U-shaped block, and the other end of the spring is fixedly connected to the rear end of the inclined top positioning block on the same side.

[0013] Furthermore, the connecting assembly includes a protrusion and a groove. The protrusion is fixedly connected to the front side of the left and right ends of the rear sealing gasket, and the groove is formed on the rear side of the left and right ends of the front sealing gasket. The protrusion and the groove are detachably connected.

[0014] Furthermore, the trapezoidal block is slidably connected to the inner wall of the U-shaped block.

[0015] Furthermore, the anchor block is I-shaped.

[0016] This utility model has the following beneficial effects:

[0017] 1. In terms of protection and maintenance, this utility model abandons the traditional one-piece molded protective cover and adopts a detachable front and rear buckle ring, combined with a structure such as protrusions and grooves. This facilitates daily inspection and replacement, and the front and rear sealing gaskets effectively prevent rainwater from seeping in, significantly improving the service life of the support.

[0018] 2. In this utility model, the I-shaped anchor block is detachably connected to the lower support plate, which increases the contact area and disperses stress, thus solving the problem of easy loosening and failure of traditional pull-out anchor bolts. This greatly enhances the pull-out and shear resistance of the support and is more suitable for earthquake-prone areas and long-span bridges. Attached Figure Description

[0019] Figure 1 This is a perspective view of a cast steel reinforced large-angle spherical support proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the anchor block structure of a cast steel reinforced large-angle spherical support proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the inclined top positioning block structure of a cast steel reinforced large-angle spherical support proposed in this utility model;

[0022] Figure 4 A schematic diagram of the U-shaped block structure of a cast steel reinforced large-angle spherical support proposed in this utility model;

[0023] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 This is a schematic diagram of the fixing seat structure of a cast steel reinforced large-angle spherical support proposed in this utility model.

[0025] Legend:

[0026] 1. Lower support plate; 2. Fixed seat; 3. Mounting assembly; 4. Upper support plate; 5. Annular groove; 6. Front retaining ring; 7. Rear retaining ring; 8. U-shaped block; 9. Inclined top positioning block; 10. Reset assembly; 11. Trapezoidal block; 12. Front sealing gasket; 13. Rear sealing gasket; 14. Connecting assembly; 15. I-shaped block; 16. Anchor block; 17. Limiting groove; 18. Connecting plate; 19. Fixing bolt; 20. Screw; 301. Spherical PTFE plate; 302. Spherical steel liner plate; 303. Flat PTFE plate; 304. Stainless steel plate; 1001. Slide rod; 1002. Spring; 1401. Protrusion; 1402. Groove. Detailed Implementation

[0027] 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.

[0028] Reference Figures 1-3 An embodiment of this utility model provides: a cast steel reinforced large-angle spherical support, including a lower support plate 1, a fixed seat 2 fixedly connected to the top of the lower support plate 1, an upper support plate 4 connected to the fixed seat 2 through an installation component 3, an annular groove 5 opened at the middle of the outer side of the fixed seat 2, a front retaining ring 6 and a rear retaining ring 7 detachably connected to the front and rear sides of the inner wall of the annular groove 5, a U-shaped block 8 fixedly connected to both the left and right ends of the outer side of the front retaining ring 6, a slanted top positioning block 9 connected to the U-shaped block 8 through a reset component 10, a screw rod 20 threadedly connected to both the top and bottom ends of the front side of the U-shaped block 8, a trapezoidal block 11 rotatably connected to the rear side of the screw rod 20, a front sealing gasket 12 fixedly connected to both the top and bottom sides of the front retaining ring 6, a rear sealing gasket 13 fixedly connected to both the top and bottom sides of the rear retaining ring 7, the rear sealing gasket 13 connected to the front sealing gasket 12 through a connecting component 14, and an I-shaped block 15 fixedly connected to both the left and right ends of the outer side of the rear retaining ring 7, the I-shaped block 15 being detachably connected to the U-shaped block 8;

[0029] Specifically, the detachable connection facilitates daily maintenance and replacement, solving the disassembly difficulties caused by the one-piece molding structure of existing protective covers; the cooperation of the front sealing gasket 12 and the rear sealing gasket 13, along with the sealing effect of the connecting component 14, effectively prevents rainwater from seeping into the support, thus improving the service life of the support; during installation, first align the front retaining ring 6 and the rear retaining ring 7 with the annular groove 5 and insert them, so that the I-shaped block 15 and the U-shaped block 8 are initially engaged, and then rotate the screw 20, which drives the trapezoidal block 11 to move backward. The trapezoidal block 11 presses against the top of the inclined top positioning block 9, causing the inclined top positioning block 9 to slide on the slide rod 1001. When the inclined top positioning block 9 slides to its limit position, its front side fits against the rear side of the I-shaped block 15, thus fixing the front retaining ring 6 and the rear retaining ring 7. When disassembly is required, the screw 20 is rotated in the opposite direction, the trapezoidal block 11 moves forward, and the inclined top positioning block 9 slides back along the slide rod 1001 under the reset force of the spring 1002, releasing the lock on the I-shaped block 15, thereby facilitating the disassembly of the front retaining ring 6 and the rear retaining ring 7.

[0030] Reference Figures 4-6The bottom of the lower support plate 1 is detachably connected to an anchor block 16. Limiting grooves 17 are provided at the top of both the front and rear sides of the lower support plate 1. A connecting plate 18 is detachably connected to the inner wall of the limiting groove 17. The connecting plate 18 is connected to the anchor block 16 via a fixing bolt 19. The mounting assembly 3 includes a spherical polytetrafluoroethylene (PTFE) plate 301, which is disposed inside the fixed base 2. A spherical steel liner plate 302 is detachably connected to the top of the spherical PTFE plate 301. A flat PTFE plate 303 is provided on the top of the spherical steel liner plate 302. A stainless steel plate 304 is provided on the top of the flat PTFE plate 303. The stainless steel plate 304 is fixedly connected to the middle of the bottom of the upper support plate 4. The reset assembly 10 includes... The assembly includes a slide rod 1001, which is fixedly connected to the rear end of the inner wall of the U-shaped block 8. The slide rod 1001 is slidably connected to the inclined top positioning block 9. A spring 1002 is sleeved on the outer side of the slide rod 1001. One end of the spring 1002 is fixedly connected to the inner wall of the U-shaped block 8, and the other end of the spring 1002 is fixedly connected to the rear end of the inclined top positioning block 9 on the same side. The connecting assembly 14 includes a protrusion 1401 and a groove 1402. The protrusion 1401 is fixedly connected to the front side of the left and right ends of the rear sealing gasket 13, and the groove 1402 is opened on the rear side of the left and right ends of the front sealing gasket 12. The protrusion 1401 and the groove 1402 are detachably connected. The trapezoidal block 11 is slidably connected to the inner wall of the U-shaped block 8. The anchor block 16 is I-shaped.

[0031] Specifically, this structural design increases the contact area between the bottom of the lower support plate 1 and the mounting surface by using a detachable anchor block 16. This compensates for the problem of stress relaxation leading to anchor failure in existing structures after long-term tension of pull-out anchors, thus improving the stability of the support. During installation, the anchor block 16 is first slid into the bottom of the lower support plate 1, then the connecting plate 18 is aligned with the limiting groove 17 and inserted, and finally the anchor block 16 and the connecting plate 18 are fixed by the fixing bolt 19, so that the anchor block 16 and the lower support plate 1 form a whole, jointly bearing the load and external force transmitted from the superstructure, effectively dispersing stress, and improving the pull-out and shear resistance of the support. It is especially suitable for earthquake-prone areas and engineering scenarios with high stability requirements, such as long-span bridges.

[0032] Working principle: First, the spherical PTFE plate 301 and the spherical steel lining plate 302 cooperate to achieve the large rotation angle function, and the planar PTFE plate 303 and the stainless steel plate 304 cooperate to achieve the horizontal displacement function, so as to adapt to the deformation requirements under the bridge load. The front buckle 6 and the rear buckle 7 are aligned with the annular groove 5 and snapped in, and the I-shaped block 15 and the U-shaped block 8 are initially engaged. The screw 20 is rotated to drive the trapezoidal block 11 to squeeze the inclined top positioning block 9 to slide it into contact with the I-shaped block 15 to achieve fixation. The screw 20 is rotated in the opposite direction and the inclined top positioning block 9 is reset and unlocked under the action of the spring 1002. This structure prevents rainwater from seeping in through the front sealing gasket 12, the rear sealing gasket 13 and the connecting component 14, and facilitates maintenance and replacement. The anchor block 16 slides into the bottom of the lower support plate 1, and the connecting plate 18 is aligned with the limiting groove 17 and snapped in, and then fixed by the fixing bolt 19, which increases the contact area and disperses the stress, improves the pull-out and shear resistance of the support, and is suitable for earthquake-prone areas and large-span bridges.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A reinforced cast steel large-angle spherical bearing, characterized in that, Includes a lower support plate (1), the top of which is fixedly connected to a fixed seat (2), the fixed seat (2) is connected to an upper support plate (4) via an installation assembly (3), the fixed seat (2) has an annular groove (5) at the middle of its outer side, the annular groove (5) has a front retaining ring (6) and a rear retaining ring (7) detachably connected to the front and rear sides of its inner wall, the left and right ends of the front retaining ring (6) are fixedly connected to U-shaped blocks (8), the U-shaped blocks (8) are connected to a slanted top positioning block (9) via a reset assembly (10), the U-shaped blocks ( 8) Both ends of the front top and bottom are threaded with screws (20), and the screws (20) are rotatably connected to trapezoidal blocks (11) on the rear side. Both sides of the front buckle (6) are fixedly connected with front sealing gaskets (12), and both sides of the rear buckle (7) are fixedly connected with rear sealing gaskets (13). The rear sealing gaskets (13) are connected to the front sealing gaskets (12) through connecting components (14). Both the left and right ends of the outer side of the rear buckle (7) are fixedly connected with I-shaped blocks (15), and the I-shaped blocks (15) and U-shaped blocks (8) are detachably connected.

2. The cast steel reinforced large-angle spherical support according to claim 1, characterized in that: The bottom of the lower support plate (1) is detachably connected to an anchor block (16). The top of the front and rear sides of the lower support plate (1) are provided with limit grooves (17). The inner wall of the limit groove (17) is detachably connected to a connecting plate (18). The connecting plate (18) is connected to the anchor block (16) by a fixing bolt (19).

3. A cast steel reinforced large-angle spherical bearing according to claim 1, characterized in that: The mounting assembly (3) includes a spherical polytetrafluoroethylene plate (301), which is disposed inside the fixed base (2). A spherical steel liner plate (302) is detachably connected to the top of the spherical polytetrafluoroethylene plate (301). A flat polytetrafluoroethylene plate (303) is disposed on the top of the spherical steel liner plate (302). A stainless steel plate (304) is disposed on the top of the flat polytetrafluoroethylene plate (303). The stainless steel plate (304) is fixedly connected to the bottom middle of the upper support plate (4).

4. A cast steel reinforced large-angle spherical bearing according to claim 1, characterized in that: The reset assembly (10) includes a slide rod (1001), which is fixedly connected to the rear end of the inner wall of the U-shaped block (8). The slide rod (1001) is slidably connected to the inclined top positioning block (9), and a spring (1002) is sleeved on the outside of the slide rod (1001).

5. A cast steel reinforced large-angle spherical support according to claim 4, characterized in that: One end of the spring (1002) is fixedly connected to the inner wall of the U-shaped block (8), and the other end of the spring (1002) is fixedly connected to the rear end of the inclined top positioning block (9) on the same side.

6. A cast steel reinforced large-angle spherical bearing according to claim 1, characterized in that: The connecting component (14) includes a protrusion (1401) and a groove (1402). The protrusion (1401) is fixedly connected to the front side of the left and right ends of the rear sealing gasket (13), and the groove (1402) is opened on the rear side of the left and right ends of the front sealing gasket (12). The protrusion (1401) and the groove (1402) are detachably connected.

7. A cast steel reinforced large-angle spherical bearing according to claim 1, characterized in that: The trapezoidal block (11) is slidably connected to the inner wall of the U-shaped block (8).

8. A cast steel reinforced large-angle spherical bearing according to claim 2, characterized in that: The anchor block (16) is I-shaped.

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