Heat insulation type fastener
By designing the heat insulation grooves on the inside and outside sides and multiple fastening fitting structures in the fasteners, the problem of insufficient heat resistance and connection strength in high temperature environments is solved, and higher heat resistance and connection strength are achieved to meet the fastening fitting needs of complex mechanical components.
Patent Information
- Application Number
- CN202311730692.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-14
- Publication Date
- 2025-06-17
AI Technical Summary
When existing fasteners are used in high temperature environments, their heat resistance and connection strength are insufficient, making it difficult to meet the fastening matching needs of complex mechanical components.
A thermally insulated fastener is designed to achieve thermal insulation effect through mutually fitted heat insulation grooves arranged on the inside and outside sides, and to achieve the fastening of multiple components through tightening at different locations.
This design improves the heat resistance and connection strength of fasteners in high temperature environments, meets the fastening matching needs of complex mechanical components, and improves reliability and durability during use.
Smart Images

Figure CN120159845A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of fasteners, and in particular to a heat-insulating fastener. Background Art
[0002] Fasteners are important fastening components when mechanical parts are installed. Existing fasteners such as screws, bolts, nuts, etc. can only achieve simple fastening cooperation during fastening and can only fasten a single position. When in use, for components in high-temperature equipment, it is difficult to meet the durability requirements during use in terms of strength during fastening, and the heat resistance is also relatively poor. Summary of the Invention
[0003] The purpose of the present invention is to provide a heat-insulating fastener, which can achieve the heat-insulating effect during the use of the inner and outer sides through the mutually cooperating heat-insulating grooves provided on the inner and outer sides, and can realize the fastening cooperation of multiple components through fastening at different positions. When in use, it can meet the fastening cooperation connection requirements of complex mechanical parts, and can meet the heat resistance requirements of high-temperature equipment during use. The connection combination strength during use is more reliable and the durability is better.
[0004] The technical solution of the present invention is as follows:
[0005] A heat-insulating fastener, characterized in that: it includes a cylindrical main body connection and cooperation column with a left-right direction as the central axis. An integrally formed first main body fastening thread is provided on the outer cylindrical surface of the main body connection and cooperation column. A cylindrical second support and stabilization column is integrally formed on the left side of the main body connection and cooperation column. An integrally formed overall fastening and cooperation column with a regular hexagon projection in the left-right direction is provided on the left side of the second support and stabilization column. A cylindrical first heat-insulating cooperation groove is provided at the center position of the right end face of the main body connection and cooperation column. A cylindrical second installation and cooperation column is integrally formed at the center position of the left end face of the first heat-insulating cooperation groove. A spherical limiting cooperation groove is provided on the right side of the second installation and cooperation column. Reinforcing support connecting plates that are integrally formed and evenly distributed in a circumferential manner are provided between the outer side of the second installation and cooperation column and the inner cylindrical surface of the first heat-insulating cooperation groove. A cylindrical third fastening connection hole is provided at the center position of the left end face of the overall fastening and cooperation column. A second heat-insulating safety groove is provided at the center position on the right side of the third fastening connection hole.
[0006] Further, the right side of the second installation and cooperation column extends beyond the plane where the right end face of the main body connection and cooperation column is located.
[0007] Further, a spare fastening thread structure is provided at the position on the outer cylindrical surface of the second installation and cooperation column close to the right side.
[0008] Furthermore, the diameter of the cylindrical shape at the outer side position of the overall fastening and fitting column is the same as the diameter length of the second support and stabilizing column.
[0009] Furthermore, the right end face of the second heat insulation and safety groove is located at the right side position of the right end face of the main body connection and fitting column.
[0010] Advantages of the present invention:
[0011] The present invention adopts a brand-new structural design. Through the heat insulation grooves arranged on the inner and outer sides and cooperating with each other, the heat insulation effect during the use of the inner and outer sides can be achieved. Moreover, the fastening of multiple components can be realized through the fastening at different positions, meeting the fastening and fitting connection requirements of complex mechanical components during use, and also meeting the heat resistance requirements of high-temperature equipment during use. The connection and combination strength during use is more reliable and the durability is better. Brief Description of the Drawings
[0012] Figure 1 is a three-dimensional structural schematic diagram of the present invention;
[0013] Figure 2 is a front view schematic diagram of the present invention;
[0014] Figure 3 is a left side view schematic diagram of the present invention;
[0015] Figure 4 is a right side view schematic diagram of the present invention;
[0016] Figure 5 is a top view schematic diagram of the present invention;
[0017] Figure 6 is a bottom view schematic diagram of the present invention;
[0018] Figure 7 is a three-dimensional structural schematic diagram of the present invention in a second direction;
[0019] Figure 8 is a cross-sectional schematic diagram at the A-A position of the present invention;
[0020] In the figure: 1, main body connection and fitting column; 2, first main body fastening thread; 3, second support and stabilizing column; 4, overall fastening and fitting column; 5, first heat insulation and fitting groove; 6, second installation and fitting column; 7, reinforcement and support connecting plate; 8, limit and fitting groove; 9, third fastening connection hole; 10, second heat insulation and safety groove. Detailed Embodiments
[0021] Such as Figures 1 to 8As shown in the figure, a heat-insulating fastener includes a cylindrical main body connection and fitting column 1 with a left-right center axis. An integrally formed first main body fastening thread 2 is provided on the outer cylindrical surface of the main body connection and fitting column 1, which is the installation structure for fastening and fitting on the outside of the main body. A cylindrical second support and stabilization column 3 is integrally formed on the left side of the main body connection and fitting column 1. An integrally formed overall fastening and fitting column 4 with a regular hexagon projection in the left-right direction is provided on the left side of the second support and stabilization column 3. When fastening at an external position, a fastening tool can be used for fastening operation through this position for fitting. A cylindrical first heat-insulating fitting groove 5 is provided at the center position of the right end face of the main body connection and fitting column 1. A cylindrical second installation and fitting column 6 is integrally formed at the center position of the left end face of the first heat-insulating fitting groove 5. It can be used as an independent fastening structure or as a reinforcement structure for the main body to ensure the structural strength of the main body. A spherical limiting fitting groove 8 is provided on the right side of the second installation and fitting column 6, which can play a role in stopping when fitting on the right side. An integrally formed and circumferentially evenly distributed reinforcement and support connecting plate 7 is provided between the outer side of the second installation and fitting column 6 and the inner cylindrical surface of the first heat-insulating fitting groove 5, ensuring the overall strength of the right-side structure. A cylindrical third fastening and connecting hole 9 is provided at the center position of the left end face of the overall fastening and fitting column 4, which can be used for internal installation fastening and fitting, and can be fitted with a fastening threaded column at the left position during installation. A second heat-insulating safety groove 10 is provided at the center position on the right side of the third fastening and connecting hole 9, making the inside a hollow structure. During use, it can form a heat-insulating structure between the inside and the outside, ensuring reliable heat resistance during use. Through the mutually cooperating heat-insulating grooves provided on the inside and the outside, it can achieve the heat-insulating effect during use inside and outside, and can achieve the fastening and fitting of multiple components through fastening at different positions. During use, it can meet the fastening and fitting connection requirements of complex mechanical components, and can meet the heat resistance requirements of high-temperature equipment during use. The connection and combination strength during use is more reliable, the durability is better, and the flexibility during installation is stronger.
[0022] Preferably, the right side of the second installation and fitting column 6 extends beyond the plane where the right end face of the main body connection and fitting column 1 is located, making it more convenient for fastening and fitting as a single fastening structure at the right side. The connection strength during fastening is also better, and the heat-insulating effect between the inside and the outside can be further improved.
[0023] Preferably, a spare fastening thread structure is provided at the right-side position of the outer cylindrical surface of the second installation and fitting column 6, making the fitting connection during fastening more convenient. It can be set as a thread groove or a threaded column.
[0024] Preferably, the diameter of the cylindrical shape where the outer side of the overall fastening and fitting column 4 is located is the same as the diameter length of the second support and stabilizing column 3, making the flatness of the structure at the left side better and the cost relatively lower during production.
[0025] Preferably, the right end face of the second heat insulation and safety groove 10 is located on the right side of the right end face of the main body connection and fitting column 1, making the heat insulation range between the inside and outside larger, the heat insulation effect can be further improved, and the overall heat resistance during use is better.
[0026] 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-insulating fastener, characterized in that: It includes a cylindrical main body connection and mating column (1) with a central axis in the left-right direction. An integrally formed first main body fastening thread (2) is provided on the outer cylindrical surface of the main body connection and mating column (1). A cylindrical second support and stabilization column (3) is integrally formed on the left side of the main body connection and mating column (1). An integrally formed overall fastening and mating column (4) with a regular hexagon projection in the left-right direction is provided on the left side of the second support and stabilization column (3). A cylindrical first heat insulation mating groove (5) is provided at the center position of the right end face of the main body connection and mating column (1). A cylindrical second installation and mating column (6) is integrally formed at the center position of the left end face of the first heat insulation mating groove (5). A spherical limiting mating groove (8) is provided on the right side of the second installation and mating column (6). Reinforcing support connecting plates (7) which are integrally formed and evenly distributed in a circumferential manner are provided between the outer side of the second installation and mating column (6) and the inner cylindrical surface of the first heat insulation mating groove (5). A cylindrical third fastening connection hole (9) is provided at the center position of the left end face of the overall fastening and mating column (4). A second heat insulation safety groove (10) is provided at the center position on the right side of the third fastening connection hole (9).
2. The heat-insulating fastener according to claim 1, characterized in that: The right side of the second installation and mating column (6) extends beyond the plane where the right end face of the main body connection and mating column (1) is located.
3. The heat-insulating fastener according to claim 1, characterized in that: A spare fastening thread structure is provided at the position near the right side of the outer cylindrical surface of the second installation and mating column (6).
4. The heat-insulating fastener according to claim 1, characterized in that: The diameter of the cylinder where the outer side position of the overall fastening and mating column (4) is located is the same as the diameter length of the second support and stabilization column (3).
5. The heat-insulating fastener according to claim 1, characterized in that: The right end face of the second heat insulation safety groove (10) is located on the right side of the right end face of the main body connection and mating column (1).