Spherical hinged support of net rack

Abstract

The utility model discloses a net rack spherical hinge support and belongs to the technical field of net rack supports. The net rack spherical hinge support comprises a base, a lower box body, a stainless steel plate, a plane polytetrafluoroethylene lining plate, a spherical steel lining plate, a damping spring, a spherical polytetrafluoroethylene lining plate and an upper cover. A sliding groove is formed in the base, a protruding strip is arranged at the bottom of the lower box body, the protruding strip moves in the sliding groove in a matched mode, a plurality of limiting holes are formed in the sliding groove, through holes matched with the limiting holes are formed in the position of the protruding strip of the lower box body, and the through holes and the limiting holes are positioned through bolts. The design of the two parallel sliding grooves and the corresponding protruding strips is adopted, the adjusting flexibility and stability of the support are improved, the support is made to be suitable for different installation scenes and requirements, and the application range and applicability of the support are improved; the damping spring made of the polypropylene material has excellent elastic recovery rate and durability, vibration and impact transmitted to the support by the structure are effectively reduced, and safety and stability of elements in the support are protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of grid supports, and in particular relates to a grid spherical hinge support. Background Art

[0002] The grid spherical hinge bearing is a structural bearing that is usually used to support the connection nodes in structures such as buildings or bridges.

[0003] In traditional grid spherical hinge bearings, a single slide slot design is usually adopted, which limits the adjustment flexibility of the bearing. Since a single slide slot is difficult to meet the needs of different installation scenarios and requirements, the application scope and applicability of the bearing are low, and customized designs may be required for different situations, increasing the complexity and cost of the project.

[0004] In addition, the springs made of metal materials are often used in traditional grid spherical hinge bearings, which have poor elastic recovery rate and durability. Such springs are difficult to effectively reduce the vibration and impact transmitted from the structure to the bearing, resulting in the bearing's weak resistance to external vibration and impact, which can easily damage the internal components of the bearing or affect its stability. Summary of the invention

[0005] The purpose of the utility model is to provide a grid spherical hinge support, which increases the adjustment flexibility and stability of the support through two parallel slide grooves and corresponding convex strip designs, making it suitable for different installation scenarios and requirements, improving the applicability and versatility of the support, and having better applicability during installation.

[0006] In order to achieve the above purpose, the specific technical solution of this application is as follows:

[0007] A grid spherical hinge support comprises a base, a lower box, a stainless steel plate, a flat polytetrafluoroethylene liner, a spherical steel liner, a shock-absorbing spring, a spherical polytetrafluoroethylene liner and an upper cover; the base is provided with a slide groove, the bottom of the lower box is provided with a convex strip, the convex strip is matched and movable in the slide groove, the slide groove is provided with a plurality of limiting holes, the convex strip position of the lower box is provided with a through hole matching the limiting hole, and the through hole and the limiting hole are positioned by bolts.

[0008] Based on the above technical features, further, a sealing ring is provided between the lower box body and the upper cover to protect the internal components of the support from the external environment and ensure its long-term stable operation.

[0009] Based on the above technical features, preferably, the base is provided with two parallel slide grooves, and the convex strips are also provided with two corresponding ones.

[0010] Based on the above technical features, preferably, connecting parts are provided between the lower box body and the upper cover in four quadrants.

[0011] Based on the above technical features, preferably, the shock-absorbing spring is made of polypropylene material and has an elastic modulus of 200 MPa. The durability performance is to maintain an elastic recovery rate of more than 95% after 1 million compression cycles, so as to effectively reduce the vibration and impact transmitted from the structure to the support.

[0012] Preferably, the sealing ring is a rubber sealing ring.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] The utility model adopts two parallel slide grooves and corresponding convex strips to increase the adjustment flexibility and stability of the support, making it suitable for different installation scenarios and requirements, and improving the application range and applicability of the support;

[0015] The shock-absorbing spring made of polypropylene material has excellent elastic recovery rate and durability, which effectively reduces the vibration and impact transmitted from the structure to the support, improves the support's resistance to external vibration and impact, and protects the safety and stability of the support's internal components;

[0016] The sealing ring is made of silicone rubber material, which has excellent high temperature resistance and chemical corrosion resistance, and effectively protects the internal components of the support from the influence of the external harsh environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a spherical hinge support for a grid frame of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view of the structure of a spherical hinge support of a grid frame of the utility model;

[0019] List of Figure Symbols:

[0020] 1. Base; 2. Lower box; 3. Stainless steel plate; 4. Flat polytetrafluoroethylene lining; 5. Spherical steel lining; 6. Shock-absorbing spring; 7. Spherical polytetrafluoroethylene lining; 8. Upper cover; 9. Connecting piece; 10. Slide; 11. Raised strip; 12. Bolt; 13. Rubber sealing ring. DETAILED DESCRIPTION

[0021] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0022] It should be noted that the words "up", "down", "left", "right", "front" and "rear" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] like Figure 1 and Figure 2 As shown, an embodiment of a spherical hinge support for a grid is disclosed, which specifically includes a base 1, a lower box body 2, a stainless steel plate 3, a flat polytetrafluoroethylene liner 4, a spherical steel liner 5, a shock-absorbing spring 6, a spherical polytetrafluoroethylene liner 7 and an upper cover 8. The base 1 is provided with a slide groove 10, and the bottom of the lower box body 2 is provided with a convex strip 11, and the convex strip 11 is matched and movable in the slide groove 10, and the slide groove is provided with a plurality of limiting holes, and the convex strip position of the lower box body is provided with a through hole matching the limiting hole, and the through hole and the limiting hole are positioned by a bolt 12. Preferably, the slide groove 10 on the base is provided with two parallel ones, and the convex strip 11 is also provided with two corresponding ones. The structural stability of the support is enhanced, and the stability and reliability of the support during use are ensured by the matching movement of the slide groove and the convex strip, and the bolt positioning method.

[0024] Preferably, the stainless steel plate 3 is made of 304 stainless steel, with a thickness of 5 mm and a hardness of HRC 45-50 to withstand the heavy pressure and vibration of the grid structure during operation. The upper cover 8 is made of 316 stainless steel.

[0025] Preferably, the spherical steel liner 5 has a special grinding treatment, and the surface roughness Ra value is less than 0.2 microns, so as to improve the friction performance between it and the spherical polytetrafluoroethylene liner 7, reduce movement resistance, and improve the adjustment flexibility and stability of the support.

[0026] Furthermore, the friction coefficient between the planar polytetrafluoroethylene lining plate 4 and the spherical steel lining plate 5 is less than 0.05.

[0027] Furthermore, a sealing ring is provided between the lower box body 2 and the upper cover 8. Preferably, the sealing ring is a rubber sealing ring 13, which has excellent high temperature resistance and chemical corrosion resistance, effectively protects the internal components of the support from the influence of the external harsh environment, and ensures its long-term stable operation.

[0028] Preferably, connecting plates are provided between the lower box body and the upper cover in four quadrants.

[0029] Preferably, the shock-absorbing spring 6 is made of polypropylene material and has an elastic modulus of 200 MPa. The durability performance is to maintain an elastic recovery rate of more than 95% after 1 million compression cycles, so as to effectively reduce the vibration and impact transmitted from the structure to the support.

[0030] It should be noted that the drawings only illustrate the technical ideas of the present invention, and the protection scope of the present invention cannot be limited by this shape. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications all fall within the protection scope of the claims of the present invention.

Claims

1. A spherical hinge support for a grid, characterized in that: It includes a base, a lower box, a stainless steel plate, a flat polytetrafluoroethylene liner, a spherical steel liner, a shock-absorbing spring, a spherical polytetrafluoroethylene liner and an upper cover; the base is provided with a slide groove, the bottom of the lower box is provided with a convex strip, the convex strip is matched and movable in the slide groove, the slide groove is provided with a plurality of limiting holes, the convex strip position of the lower box is provided with a through hole matching the limiting hole, and the through hole and the limiting hole are positioned by bolts.

2. The spherical hinge support of a grid according to claim 1, characterized in that: A sealing ring is provided between the lower box body and the upper cover.

3. The spherical hinge support of a grid according to claim 1, characterized in that: The base is provided with two parallel sliding grooves, and the convex strips are also provided with two corresponding ones.

4. The spherical hinge support of a grid according to claim 1, characterized in that: Connecting pieces are provided between the lower box body and the upper cover in four quadrants.

5. The spherical hinge support of a grid frame according to claim 1, characterized in that: The shock-absorbing spring is made of polypropylene material and has an elastic modulus of 200 MPa. Its durability is such that it maintains an elastic recovery rate of more than 95% after 1 million compression cycles.

6. The grid spherical hinge support according to claim 2, characterized in that: The sealing ring is a rubber sealing ring.

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