A high-temperature resistant fastener

Abstract

This utility model discloses a high-temperature resistant fastener, including a main screw, one end of which has a bolt head. An upper washer, an elastic component, and a lower washer are sequentially installed on the main screw at the bolt head end. An auxiliary screw and a main nut are detachably installed on the main screw at the end away from the bolt head. The auxiliary screw passes through the main screw and the main nut, and auxiliary nuts are installed at both ends of the auxiliary screw. In this utility model, the upper washer, elastic component, and lower washer sequentially installed on the main screw at the bolt head end, and the elastic component improves the fastener's cushioning and shock absorption performance, further preventing loosening. The auxiliary screw and main nut are detachably installed on the main screw at the end away from the bolt head, and the main screw and main nut have through holes for the auxiliary screw to pass through. The auxiliary screw passes through the main screw and the main nut, and auxiliary nuts are installed at both ends of the auxiliary screw. The auxiliary screw and auxiliary nuts further limit the main nut's position, preventing it from falling off.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically a high-temperature resistant fastener. Background Technology

[0002] Fasteners, also known as standard parts in the market, are mechanical components that can mechanically fix or bond two or more elements together. They are characterized by a wide variety of types and specifications, diverse performance and applications, and a high degree of standardization, serialization, and generalization. Fasteners are the most widely used basic mechanical components, with a large demand.

[0003] A high-temperature resistant fastener disclosed in CN222163099U includes a connecting rod with a groove inside. A connecting post 1 is slidably connected within the groove. A connecting post 2 is fixedly connected to one end of the connecting post 1, and a pull rod 2 is fixedly connected to the other end. A limit plate is fixedly connected inside the connecting rod. The pull rod 2 passes through and rotates within the limit plate. A spring 1 is sleeved on the pull rod 2, located between the connecting post 1 and the limit plate. Pulling the locking plate lifts the pull rod 1, causing the connecting post 4 to slide upwards. Simultaneously, the spring 2 is compressed, causing the bottom of the connecting post 4 to be pulled out from the connecting post 2. At the same time, the compressed spring 1 rebounds, pushing the connecting post 1 to move to the left, thereby causing the connecting post 3 and the inner connecting member to move to the left, facilitating the fastening of the inner connecting member and the outer connecting member.

[0004] Existing fasteners use springs, which have a limited lifespan and are prone to loosening. Therefore, we propose a high-temperature resistant fastener. Utility Model Content

[0005] The purpose of this invention is to provide a high-temperature resistant fastener to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant fastener, comprising a main screw, a bolt head at one end of the main screw, an upper washer, an elastic component, and a lower washer sequentially installed on the main screw at the bolt head end; an auxiliary screw and a main nut are detachably installed on the end of the main screw away from the bolt head, the auxiliary screw passes through the main screw and the main nut, and auxiliary nuts are installed at both ends of the auxiliary screw.

[0007] Preferably, the main screw and the main nut have through holes for the auxiliary screw to pass through.

[0008] Preferably, the main screw and the bolt head are an integral structure, the lower part of the bolt head is provided with an annular protrusion, the upper washer is locked in the annular protrusion, the bolt head is provided with a fastening groove, and multiple slots are provided at equal intervals on the outside of the fastening groove of the bolt head.

[0009] Preferably, the upper pad has multiple grooves at equal intervals on one side of the elastic component, and the lower pad has multiple grooves at equal intervals on one side of the elastic component.

[0010] Preferably, the elastic component includes an upper ring, a lower ring, a lower spring piece, a middle spring piece, and an upper spring piece. The two ends of the middle spring piece are respectively provided with a lower spring piece and an upper spring piece. The lower spring piece, the middle spring piece, and the upper spring piece together form a spring piece assembly. Multiple spring piece assemblies are provided at equal intervals between the upper ring and the lower ring.

[0011] Preferably, the lower, middle, and upper spring pieces are all arc-shaped structures, with the opening orientation of the middle spring piece opposite to that of the lower spring piece, and the opening orientation of the middle spring piece opposite to that of the upper spring piece.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The main screw is equipped with an upper washer, an elastic component, and a lower washer in sequence at one end of the bolt head. The elastic component improves the buffering and shock absorption performance of the fastener and further prevents the fastener from loosening. An auxiliary screw and a main nut are detachably installed at the end of the main screw away from the bolt head. The main screw and the main nut have through holes for the auxiliary screw to pass through. The auxiliary screw passes through the main screw and the main nut. Auxiliary nuts are installed at both ends of the auxiliary screw. The auxiliary screw and auxiliary nuts further limit the main nut and prevent the main nut from falling off.

[0014] 2. The lower, middle, and upper spring pieces are all arc-shaped structures. The opening direction of the middle spring piece is opposite to that of the lower spring piece, and the opening direction of the upper spring piece is opposite to that of the middle spring piece. The lower, middle, and upper spring pieces together form a spring piece assembly, which improves the buffering and shock absorption effect, thereby further improving the anti-loosening performance of the fastener. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is the front view of this utility model;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the bolt head structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the elastic component of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the lower gasket of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the upper gasket of this utility model;

[0023] Figure 8 This is a structural schematic diagram of the auxiliary screw of this utility model;

[0024] Figure 9 This is a structural schematic diagram of the main screw and main nut of this utility model.

[0025] In the diagram: 1. Bolt head; 2. Upper washer; 3. Elastic component; 4. Lower washer; 5. Main screw; 6. Main nut; 7. Auxiliary screw; 8. Auxiliary nut; 11. Fastening groove; 12. Slot; 13. Annular protrusion; 31. Upper ring; 32. Lower ring; 33. Lower spring; 34. Middle spring; 35. Upper spring; 41. Groove; 51. Through hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0027] Please see Figure 1-9 In this embodiment of the present invention, a high-temperature resistant fastener includes a main screw 5, one end of which is provided with a bolt head 1. An upper washer 2, an elastic component 3, and a lower washer 4 are sequentially installed on the main screw 5 at the bolt head 1 end. The elastic component 3 improves the buffering and shock absorption performance of the fastener and further prevents the fastener from loosening. An auxiliary screw 7 and a main nut 6 are detachably installed on the end of the main screw 5 away from the bolt head 1. The main screw 5 and the main nut 6 have through holes 51 for the auxiliary screw 7 to pass through. The auxiliary screw 7 passes through the main screw 5 and the main nut 6. Auxiliary nuts 8 are installed at both ends of the auxiliary screw 7. The auxiliary screw 7 and the auxiliary nuts 8 further limit the main nut and prevent the main nut from falling off.

[0028] The main screw 5 and the bolt head 1 are an integral structure. The lower part of the bolt head 1 is provided with an annular protrusion 13. The upper washer 2 is locked in the annular protrusion 13. The bolt head 1 is provided with a fastening groove 11. Multiple slots 12 are provided at equal intervals on the outside of the fastening groove 11. The fastening groove 11 can be used with a corresponding wrench to realize the disassembly and assembly of fasteners. The hexagonal structure of the bolt head 1 itself can also be used with a general wrench to disassemble and assemble fasteners.

[0029] The upper pad 2 is provided with a plurality of grooves 41 at equal intervals on one side of the elastic component 3, and the lower pad 4 is provided with a plurality of grooves 41 at equal intervals on one side of the elastic component 3. The elastic component 3 includes an upper ring 31, a lower ring 32, a lower spring piece 33, a middle spring piece 34, and an upper spring piece 35. The middle spring piece 34 has a lower spring piece 33 and an upper spring piece 35 at its two ends. The lower spring piece 33, the middle spring piece 34, and the upper spring piece 35 together form a spring piece assembly. Multiple spring piece assemblies are equally spaced between the upper ring 31 and the lower ring 32. The lower spring piece 33, the middle spring piece 34, and the upper spring piece 35 are all arc-shaped structures. The opening direction of the middle spring piece 34 is opposite to the opening direction of the lower spring piece 33, and the opening direction of the middle spring piece 34 is opposite to the opening direction of the upper spring piece 35. The lower spring piece 33, the middle spring piece 34, and the upper spring piece 35 together form a spring piece assembly, which improves the buffering and shock absorption effect, thereby further improving the anti-loosening performance of the fastener.

[0030] The working principle of this utility model is as follows: The main screw 5 is located at one end of the bolt head 1 and is sequentially equipped with an upper washer 2, an elastic component 3, and a lower washer 4. The elastic component 3 improves the buffering and shock absorption performance of the fastener and further prevents the fastener from loosening. The auxiliary screw 7 and the main nut 6 are detachably installed at the end of the main screw 5 away from the bolt head 1. The main screw 5 and the main nut 6 have through holes 51 for the auxiliary screw 7 to pass through. The auxiliary screw 7 passes through the main screw 5 and the main nut 6. The two ends of the auxiliary screw 7 are equipped with auxiliary nuts 8. The auxiliary screw 7 and the auxiliary nuts 8 further limit the main nut and prevent the main nut from falling off.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A high temperature resistant fastener comprising a main screw rod (5) characterized in that: The main screw (5) is provided with a bolt head (1) at one end, and the main screw (5) is provided with an upper washer (2), an elastic component (3) and a lower washer (4) in sequence at the bolt head (1) end. The main screw (5) is detachably mounted with an auxiliary screw (7) and a main nut (6) at the end away from the bolt head (1). The auxiliary screw (7) passes through the main screw (5) and the main nut (6). The two ends of the auxiliary screw (7) are equipped with auxiliary nuts (8).

2. The high-temperature resistant fastener according to claim 1, characterized in that: The main screw (5) and the main nut (6) are provided with through holes (51) for the auxiliary screw (7) to pass through.

3. A high-temperature resistant fastener according to claim 1, characterized in that: The main screw (5) and the bolt head (1) are an integral structure. The lower part of the bolt head (1) is provided with an annular protrusion (13). The upper washer (2) is stuck in the annular protrusion (13). The bolt head (1) is provided with a fastening groove (11). The bolt head (1) is provided with multiple slots (12) at equal intervals on the outside of the fastening groove (11).

4. A high-temperature resistant fastener according to claim 1, characterized in that: The upper gasket (2) is provided with a plurality of grooves (41) at equal intervals on one side of the elastic component (3), and the lower gasket (4) is provided with a plurality of grooves (41) at equal intervals on one side of the elastic component (3).

5. A high-temperature resistant fastener according to claim 1, characterized in that: The elastic component (3) includes an upper ring (31), a lower ring (32), a lower spring piece (33), a middle spring piece (34), and an upper spring piece (35). The middle spring piece (34) has a lower spring piece (33) and an upper spring piece (35) at its two ends respectively. The lower spring piece (33), the middle spring piece (34), and the upper spring piece (35) together form a spring piece assembly. Multiple spring piece assemblies are arranged at equal intervals between the upper ring (31) and the lower ring (32).

6. A high-temperature resistant fastener according to claim 5, characterized in that: The lower spring (33), middle spring (34) and upper spring (35) are all arc-shaped structures. The opening direction of the middle spring (34) is opposite to that of the lower spring (33), and the opening direction of the middle spring (34) is opposite to that of the upper spring (35).

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