Anti-drop and anti-seismic fastener for expansion joint
By setting up a combined limit fitting groove in the expansion joint anti-shock fastener and welding, the problem of insufficient tightening strength and anti-shock effect is solved, and higher connection strength and durability are achieved, while reducing production costs.
Patent Information
- Application Number
- CN202422785322.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-11-15
AI Technical Summary
When the expansion joint is connected, the existing fastening nut assembly has limited tightness and poor anti-shock effect, resulting in poor overall durability of the expansion joint.
A symmetrically distributed combined limit fitting groove is provided in the expansion joint anti-detachment and earthquake-resistant fastener, and the limit fit is performed through welding to enhance the connection strength and stability.
It improves the connection strength of the expansion joint and anti-shock effect, enhances durability during use, and reduces production costs and welding mating efficiency.
Smart Images
Figure CN223203460U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of expansion joint components, in particular to an anti-detachment and anti-vibration fastener for an expansion joint. Background Art
[0002] During production, expansion joints usually need to be fastened together with fasteners such as fastening nuts. Existing fastening nut components can only be combined through threads during fastening. The fastening strength is limited, and the anti-slip and anti-vibration effect of the connection position is relatively poor. The overall durability during use is also relatively poor. Utility Model Content
[0003] The purpose of the utility model is to provide an expansion joint anti-slip and anti-seismic fastener, which is provided with two symmetrically distributed combined limiting matching grooves on the main structure, and can be used to limit and fasten the structure at the connection position by welding when in use, so that the strength of the connection position is higher, the safety and stability during combination are more reliable, and it has reliable anti-slip and anti-seismic effects when in use, which can effectively improve the durability of the expansion joint as a whole when in use. The overall structure of this fastener is relatively simple, the production cost is relatively low, the efficiency is higher when welding, and the flexibility is stronger when in use, and it can replace the existing fastening nut components for use.
[0004] The technical solution of the utility model is as follows:
[0005] An expansion joint anti-slip and anti-seismic fastener, characterized in that: it includes a cylindrical main body fastening connection seat, a clamping fitting connection groove is provided on the outer cylindrical surface of the main body fastening connection seat, an integral fastening combination hole is provided at the center position of the upper end of the main body fastening connection seat, and a fastening connection thread groove is provided inside the integral fastening combination hole. A group of symmetrical combined limiting safety grooves are respectively provided on the upper and lower sides of the main body fastening connection seat, and the combined limiting safety grooves pass through the inner side of the integral fastening combination hole and the outer side of the main body fastening connection seat. A symmetrical welding fitting safety groove with a circular arc cross-section is respectively provided on the front and rear end faces of the combined limiting safety groove.
[0006] Furthermore, a rounded corner is provided on the upper and lower edges of the main body fastening connection seat.
[0007] Furthermore, the size of the upper end of the welding safety groove is smaller than that of the lower end.
[0008] Furthermore, the depth of the combined limiting safety groove is less than one third of the thickness of the main body fastening connection seat in the up-down direction.
[0009] Furthermore, the size of the welding safety groove at the outer side in the vertical direction is larger than the size at the inner side.
[0010] Beneficial effects of the utility model:
[0011] The utility model provides two symmetrically distributed combined limiting matching grooves on the main structure, and the structure at the connection position can be limited and fastened by welding when in use, so that the strength of the connection position is higher, the safety and stability during combination are more reliable, and it has reliable anti-slip and anti-vibration effects when in use, which can effectively improve the durability of the expansion joint as a whole when in use. The overall structure of this fastener is relatively simple, the production cost is relatively low, the efficiency is higher when welding, and the flexibility is greater when in use, and it can replace the existing fastening nut components for use. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0013] Figure 2 It is a front schematic diagram of the utility model;
[0014] Figure 3 It is a schematic diagram of the left side of the utility model;
[0015] Figure 4 It is a schematic diagram of the right side of the utility model;
[0016] Figure 5 It is a top view schematic diagram of the utility model;
[0017] Figure 6 This is a bottom view schematic diagram of the present utility model;
[0018] Figure 7 This is a schematic diagram of the three-dimensional structure of the utility model in the second direction;
[0019] In the figure: 1. Main body fastening connection seat, 2. Clamping matching connection groove, 3. Overall fastening combination hole, 4. Combined limit safety groove, 5. Welding matching safety groove. DETAILED DESCRIPTION
[0020] like Figures 1 to 7The figure shows an expansion joint anti-slip and anti-vibration fastener. It includes a cylindrical main fastening connector 1. The outer cylindrical surface of the main fastening connector 1 is provided with a clamping groove 2, which can be used with a clamping tool for overall tightening. A centrally located integral fastening hole 3 is provided at the upper end of the main fastening connector 1, extending through the lower end. The interior of the integral fastening hole 3 is provided with a fastening threaded groove, facilitating tightening. A pair of symmetrical combined stopper grooves 4 are provided on the upper and lower sides of the main fastening connector 1, respectively. These grooves can be inserted and fitted with the structure of the expansion joint assembly and then secured by welding, enhancing the overall joint stability. The combined stopper grooves 4 extend from the inner side of the integral fastening hole 3 to the outer side of the main fastening connector 1. Symmetrical arc-shaped welding stopper grooves 5 are provided on the front and rear ends of the combined stopper grooves 4, respectively. These grooves allow welding material to be incorporated into the inner side during welding, improving welding stability, providing reliable anti-slip performance during use, and enhancing the overall joint's anti-vibration effect. It sets two symmetrically distributed combined limiting matching grooves on the main structure, and the structure at the connection position can be limited and fastened by welding when in use, so that the strength of the connection position is higher, the safety and stability during combination are more reliable, and it has reliable anti-slip and anti-seismic effects when in use, which can effectively improve the durability of the entire expansion joint when in use. The overall structure of this fastener is relatively simple, the production cost is relatively low, the efficiency is higher when welding, and the flexibility is greater when in use, and it can replace the existing fastening nut components for use.
[0021] Preferably, the upper and lower edges of the main body fastening connection seat 1 are respectively provided with a rounded corner for avoidance, which improves the safety during the fitting and avoids the existence of the outer sharp corner structure.
[0022] Preferably, the size of the upper end of the welding safety groove 5 is smaller than that of the lower end, so that there is more space during welding and the welding efficiency is higher.
[0023] Preferably, the depth of the combined limiting safety groove 4 is less than one-third of the thickness of the main fastening connection seat 1 in the up and down directions, which can improve the stability of the main structure. If the depth is too large, it will affect the overall structural strength.
[0024] Preferably, the size of the outer position of the welding safety groove 5 in the vertical direction is larger than that of the inner position, so that this position is more convenient when placing the matching components and the combination efficiency is higher.
[0025] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements or substitutions can be made without departing from the principles described in the present invention. These improvements or substitutions should also be regarded as the scope of protection of the present invention.
Claims
1. An expansion joint anti-seismic fastener, characterized by: The invention comprises a cylindrical main body fastening connection seat (1), wherein a clamping fitting connection groove (2) is provided on the outer cylindrical surface of the main body fastening connection seat (1), an integral fastening combination hole (3) penetrating the lower end of the main body is provided at the center position of the upper end of the main body fastening connection seat (1), a fastening connection thread groove is provided inside the integral fastening combination hole (3), and a group of symmetrical combined limiting safety grooves (4) are respectively provided on the upper and lower sides of the main body fastening connection seat (1), wherein the combined limiting safety grooves (4) penetrate the inner side of the integral fastening combination hole (3) and the outer side of the main body fastening connection seat (1), and a symmetrical welding fitting safety groove (5) with a circular arc cross section is respectively provided on the front and rear end surfaces of the combined limiting safety groove (4).
2. The expansion joint anti-seismic fastener according to claim 1, characterized in that: The upper and lower edge positions of the main body fastening connection seat (1) are respectively provided with a clearance matching fillet.
3. The expansion joint anti-seismic fastener according to claim 1, characterized in that: The size of the upper end of the welding fitting safety groove (5) is smaller than that of the lower end.
4. The expansion joint anti-seismic fastener according to claim 1, characterized in that: The depth of the combined limiting safety groove (4) is less than one third of the thickness of the main body fastening connection seat (1) in the up-down direction.
5. The expansion joint anti-detachment and anti-seismic fastener according to claim 1, characterized in that: The size of the welding fitting safety groove (5) at the outer side in the vertical direction is larger than the size at the inner side.