Heat-resistant sealing fastener

Abstract

The utility model relates to the technical field of fasteners, in particular to a heat-resistant sealing fastener. According to the technical scheme, the connecting piece comprises a cylindrical main body fastening connecting base, a cylindrical fastening matching connecting groove is formed in the lower end of the main body fastening connecting base, a fastening connecting threaded groove is formed in the inner cylindrical face of the fastening matching connecting groove, a main body assembling guide groove is formed in the lower end of the fastening matching connecting groove, and the main body assembling guide groove is connected with the cylindrical main body fastening connecting base. A center combination connecting hole which completely penetrates through the whole body in the vertical direction is formed in the center of the upper end of the body fastening connecting base, and ventilation safety matching grooves which are evenly distributed in the circumferential direction and completely penetrate through the whole body in the vertical direction are formed in the inner cylindrical face of the center combination connecting hole. The utility model has the advantages that the ventilation safety matching groove is arranged at the position matched with the shaft, so that reliable heat resistance during use can be ensured, uniform lubrication matching can be carried out by matching with lubricating liquid according to requirements, and the durability of the shaft part during use is ensured to be stronger.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a heat-resistant sealing fastener. Background Art

[0002] When connecting and mating mechanical components, fasteners are usually required for fastening and combination. When the existing fastening components are used for the sleeve fit of shaft structures, the heat resistance at the connection position is relatively poor. When used in combination with lubricating fluid, due to the lack of a dedicated lubrication channel, it is difficult to ensure the lubrication uniformity during use, resulting in relatively poor durability of the shaft components during use. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a heat-resistant sealing fastener, which can be sleeved and mated with a shaft component during use, and the lower end position can be installed and mated with a mechanical component by means of threaded connection, which can provide positioning and reinforcement cooperation for the shaft component. And by setting a ventilation safety fit groove at the position where it is mated with the shaft, reliable heat resistance can be ensured during use. According to needs, it can also be evenly lubricated in combination with lubricating fluid to ensure stronger durability of the shaft component during use.

[0004] The technical solution of the utility model is as follows:

[0005] A heat-resistant sealing fastener, characterized in that: it includes a cylindrical main body fastening connection seat, a cylindrical fastening fit connection groove is provided at the lower end of the main body fastening connection seat, a fastening connection thread groove is provided on the inner cylindrical surface of the fastening fit connection groove, a main body assembly guide groove is provided at the lower end of the fastening fit connection groove, a central combination connection hole that completely penetrates in the overall up and down direction is provided at the center position of the upper end of the main body fastening connection seat, a ventilation safety fit groove that is circumferentially evenly distributed and completely penetrates in the overall up and down direction is provided on the inner cylindrical surface of the central combination connection hole, the width of the outer side position of the ventilation safety fit groove is smaller than the width of the position close to the central combination connection hole side, and a circumferentially evenly distributed avoidance safety fit groove is provided at the upper end of the main body fastening connection seat, and the avoidance safety fit groove communicates with the ventilation safety fit groove.

[0006] Further, the depth of the fastening fit connection groove is less than half of the thickness of the main body fastening connection seat.

[0007] Further, chamfer structures for convenient assembly are respectively provided at the upper and lower edge positions of the central combination connection hole.

[0008] Further, the avoidance safety fit groove is of a cylindrical structure.

[0009] Furthermore, the avoidance safety fitting groove intersects with the central combined connection hole, and the width at the intersection position is the same as the width of the ventilation safety fitting groove at the position close to the central combined connection hole.

[0010] Advantages of the present utility model:

[0011] When in use, the present utility model can be sleeved and fitted with a shaft component, and the lower end can be installed and fitted with a mechanical component by means of threaded connection, which can provide positioning and reinforcement fitting for the shaft component. Moreover, by providing a ventilation safety fitting groove at the position where it fits with the shaft, reliable heat resistance can be ensured during use. According to needs, it can also be uniformly lubricated in cooperation with a lubricating fluid to ensure stronger durability of the shaft component during use and higher overall safety during the use process. Description of the drawings

[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0013] Figure 2 is a front schematic diagram of the present utility model;

[0014] Figure 3 is a left schematic diagram of the present utility model;

[0015] Figure 4 is a sectional schematic diagram of the present utility model at the A-A position;

[0016] Figure 5 is a top schematic diagram of the present utility model;

[0017] Figure 6 is a bottom schematic diagram of the present utility model;

[0018] Figure 7 is a three-dimensional structural schematic diagram of the present utility model in the second direction;

[0019] In the figure: 1, main body fastening connection seat; 2, fastening fitting connection groove; 3, central combined connection hole; 4, ventilation safety fitting groove; 5, avoidance safety fitting groove; 6, main body assembly guiding groove. Specific embodiments

[0020] As Figures 1 to 7As shown in the figure, a heat-resistant sealing fastener includes a cylindrical main body fastening connection seat 1. A cylindrical fastening and mating connection groove 2 is provided at the lower end of the main body fastening connection seat 1. A fastening connection thread groove is provided on the inner cylindrical surface of the fastening and mating connection groove 2 for fastening and mating at this position. A main body assembly guiding groove 6 is provided at the lower end of the fastening and mating connection groove 2 to ensure more convenient connection operation during mating. A central combined connection hole 3 that completely penetrates the whole in the up and down direction is provided at the center of the upper end of the main body fastening connection seat 1, which can be mated and connected with a shaft-like component. A ventilation safety mating groove 4 that is evenly distributed in a circumference and completely penetrates the whole in the up and down direction is provided on the inner cylindrical surface of the central combined connection hole 3. It has a ventilation function during use, can perform heat dissipation mating for the shaft-like component, and at the same time can also perform uniform conveying mating with lubricating fluid, and perform lubricating mating during heat dissipation to ensure better safety and stronger durability of the shaft-like component during use. The width of the outer side position of the ventilation safety mating groove 4 is smaller than the width of the position closer to the central combined connection hole 3, making the space at this position larger. A circumferentially evenly distributed avoidance safety mating groove 5 is provided at the upper end of the main body fastening connection seat 1, which can make the space at the upper end larger. According to needs, it can be mated and connected with a reinforcement component, or can be mated for transitional conveying of lubricating fluid to ensure better smoothness during lubrication and more reliable overall lubricating heat resistance. The avoidance safety mating groove 5 communicates with the ventilation safety mating groove 4. It can be sleeved and mated with a shaft-like component during use, and the lower end position can be installed and mated with a mechanical component by means of threaded connection. It can provide positioning and reinforcement mating functions for the shaft-like component, and by providing a ventilation safety mating groove at the mating position with the shaft-like component, it can ensure reliable heat resistance during use, and can also be mated with lubricating fluid for uniform lubricating mating according to needs to ensure stronger durability of the shaft-like component during use.

[0021] Preferably, the depth of the fastening and mating connection groove 2 is less than half of the thickness of the main body fastening connection seat 1 to ensure better strength of the main body structure and stronger bearing capacity during use.

[0022] Preferably, mating chamfer structures for convenient assembly are respectively provided at the upper and lower edge positions of the central combined connection hole 3, making the mating operation more convenient when sleeved and connected with a shaft-like component during installation.

[0023] Preferably, the avoidance safety mating groove 5 is of a cylindrical structure, which is more convenient for production and processing and has higher production efficiency.

[0024] Preferably, the avoidance safety mating groove 5 intersects with the central combined connection hole 3, and the width at the intersection position is the same as the width of the ventilation safety mating groove 4 at the position close to the central combined connection hole 3, so that the structural flatness between them is better, it is easier during production and processing, and the structural stability is better, and the durability during use is stronger.

[0025] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements or replacements can be made, and these improvements or replacements should also be regarded as the protection scope of the present invention.

Claims

1. A heat-resistant sealing fastener, characterized in that: It includes a cylindrical main body fastening connection seat (1). A cylindrical fastening and mating connection groove (2) is provided at the lower end of the main body fastening connection seat (1). Threaded fastening connection grooves are provided on the inner cylindrical surface of the fastening and mating connection groove (2). A main body assembly guiding groove (6) is provided at the lower end of the fastening and mating connection groove (2). A central combined connection hole (3) that completely penetrates the whole in the up and down direction is provided at the center position of the upper end of the main body fastening connection seat (1). Ventilation and safety mating grooves (4) that are evenly distributed in a circle and completely penetrate the whole in the up and down direction are provided on the inner cylindrical surface of the central combined connection hole (3). The width of the outer side position of the ventilation and safety mating groove (4) is smaller than the width of the position closer to one side of the central combined connection hole (3). Circumferentially evenly distributed avoidance safety mating grooves (5) are provided at the upper end of the main body fastening connection seat (1). The avoidance safety mating grooves (5) communicate with the ventilation and safety mating grooves (4).

2. The heat-resistant sealing fastener according to claim 1, wherein: The depth of the fastening and mating connection groove (2) is less than half of the thickness of the main body fastening connection seat (1).

3. The heat-resistant sealing fastener according to claim 1, wherein: Cooperating chamfer structures for facilitating assembly are respectively provided at the upper and lower edge positions of the central combined connection hole (3).

4. A heat-resistant sealing fastener according to claim 1, characterized in that: The avoidance safety mating groove (5) is of a cylindrical structure.

5. A heat-resistant sealing fastener according to claim 1, characterized in that: The avoidance safety mating groove (5) intersects with the central combined connection hole (3), and the width of the intersecting position is the same as the width of the position of the ventilation and safety mating groove (4) closer to one side of the central combined connection hole (3).

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