Novel high-temperature-resistant bolt

Abstract

The utility model discloses a novel high-temperature-resistant bolt, which belongs to the technical field of bolts and comprises an end head, a threaded shaft is fixedly connected to the bottom surface of the end head, a hexagonal opening is arranged on the upper surface of the end head, a nut is in threaded connection with the outer surface of the threaded shaft, and a first mounting groove and a second mounting groove are respectively arranged on the upper surface of the end head and the upper surface of the nut. The inner wall of the first mounting groove and the inner wall of the second mounting groove are fixedly connected with a first heat-resisting ring and a second heat-resisting ring correspondingly. According to the novel high-temperature-resistant bolt, by arranging a first mounting groove, a second mounting groove, a first heat-resistant ring and a second heat-resistant ring, the heat resistance of the end and the nut can be effectively improved, and by arranging a first heat-resistant layer, a second heat-resistant layer, a third heat-resistant layer, a fourth heat-resistant layer, a fifth heat-resistant layer and a sixth heat-resistant layer, the heat resistance of a threaded shaft can be effectively improved; the high-temperature resistance of the whole bolt is effectively improved, and the internal structure of the bolt is prevented from being damaged due to the high-temperature environment.

Description

Technical Field

[0001] The present application belongs to the technical field of bolts, and in particular relates to a new type of high temperature resistant bolt. Background Art

[0002] A bolt is a mechanical part, a cylindrical threaded fastener equipped with a nut. It is composed of a head and a screw (a cylinder with external threads). It needs to be matched with a nut and is used to fasten two parts with through holes. This type of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated. Therefore, the bolt connection is a detachable connection.

[0003] However, the existing bolts are made of only medium carbon steel, which has poor functionality. The internal structure of the bolts is easily damaged and easily broken in high temperature environments or when subjected to friction and other compression for a long time. Due to the poor high temperature resistance, they are not suitable for use in high temperature environments, and the use environment is easily subject to certain restrictions.

[0004] To this end, we proposed a new type of high temperature resistant bolt to solve the above problems. Utility Model Content

[0005] The purpose of this application is to solve the problem in the prior art that the bolt is prone to breakage in a high temperature environment or under long-term friction and other extrusion, and has poor high temperature resistance, and to propose a new type of high temperature resistant bolt.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A new type of high-temperature resistant bolt comprises an end head, a threaded shaft is fixedly connected to the bottom surface of the end head, a hexagonal opening is provided on the upper surface of the end head, a nut is threadedly connected to the outer surface of the threaded shaft, a first mounting groove and a second mounting groove are respectively provided on the upper surface of the end head and the upper surface of the nut, a first heat-resistant ring and a second heat-resistant ring are respectively fixedly connected to the inner wall of the first mounting groove and the inner wall of the second mounting groove, a first heat-resistant layer is fixedly connected to the upper surface of the threaded shaft, a second heat-resistant layer is fixedly connected to the bottom surface of the threaded shaft, a third heat-resistant layer is fixedly connected to the upper surface of the first heat-resistant layer, a fourth heat-resistant layer is fixedly connected to the bottom surface of the second heat-resistant layer, a fifth heat-resistant layer is fixedly connected to the upper surface of the third heat-resistant layer, and a sixth heat-resistant layer is fixedly connected to the bottom surface of the fourth heat-resistant layer.

[0008] Preferably, a plurality of identical anti-slip strips are arranged on the outer side of the end head, and the outer surface of each of the anti-slip strips is fixedly connected to the outer surface of the end head.

[0009] Preferably, a first anti-slip gasket is sleeved on the outer surface of the threaded shaft, and the upper surface of the first anti-slip gasket is fixedly connected to the bottom surface of the end head.

[0010] Preferably, a first sealing gasket is fixedly connected to the upper surface of the first heat-resistant ring, and a bottom surface of the first sealing gasket is fixedly connected to the upper surface of the end head.

[0011] Preferably, a second sealing gasket is fixedly connected to the upper surface of the second heat-resistant ring, and a bottom surface of the second sealing gasket is fixedly connected to the upper surface of the nut.

[0012] Preferably, a second anti-slip gasket is sleeved on the outer surface of the threaded shaft, and the bottom surface of the second anti-slip gasket is in contact with the upper surface of the second sealing gasket.

[0013] In summary, the technical effects and advantages of this application are:

[0014] By providing the first installation groove, the second installation groove, the first heat-resistant ring and the second heat-resistant ring, the heat resistance of the end head and the nut can be effectively increased, and the first heat-resistant layer, the second heat-resistant layer, the third heat-resistant layer, the fourth heat-resistant layer, the fifth heat-resistant layer and the sixth heat-resistant layer can effectively increase the heat resistance of the threaded shaft and effectively increase the high temperature resistance of the entire bolt, thereby preventing the internal structure of the bolt from being damaged and easily broken due to the influence of the high temperature environment. While isolating the heat through the heat-resistant material, it can also increase the overall service life and performance of the bolt, and it can be used for a long time in a high temperature environment, thereby avoiding the problem that the bolt has poor functionality, the internal structure of the bolt is easily damaged in a high temperature environment or under long-term friction and other extrusion, and the bolt as a whole is easily broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the new high-temperature resistant bolt of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the second installation slot of the utility model;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the threaded shaft of the utility model;

[0018] Figure 4 It is a schematic structural diagram of the second heat-resistant ring of the utility model;

[0019] Figure 5 It is a schematic structural diagram of the first heat-resistant ring of the utility model;

[0020] Figure 6 It is a cross-sectional view of the threaded shaft of the utility model.

[0021] In the figure: 1. end; 2. anti-slip strip; 3. threaded shaft; 4. nut; 5. second anti-slip gasket; 6. first sealing gasket; 7. hexagonal mouth; 8. first mounting groove; 9. second mounting groove; 10. first anti-slip gasket; 11. second heat-resistant ring; 12. first heat-resistant ring; 13. third heat-resistant layer; 14. fifth heat-resistant layer; 15. first heat-resistant layer; 16. sixth heat-resistant layer; 17. fourth heat-resistant layer; 18. second heat-resistant layer; 19. second sealing gasket. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-6 A new type of high temperature resistant bolt includes an end 1, a threaded shaft 3 is fixedly connected to the bottom surface of the end 1, a hexagonal opening 7 is opened on the upper surface of the end 1, a nut 4 is threadedly connected to the outer surface of the threaded shaft 3, and a plurality of identical anti-slip strips 2 are arranged on the outer side of the end 1. The outer surface of each anti-slip strip 2 is fixedly connected to the outer surface of the end 1. The anti-slip strip 2 can increase the friction between the hand and the end 1, increase the anti-slip property, and prevent slipping.

[0024] The upper surface of the end cap 1 and the upper surface of the nut 4 are respectively provided with a first mounting groove 8 and a second mounting groove 9, the inner wall of the first mounting groove 8 and the inner wall of the second mounting groove 9 are respectively fixedly connected with a first heat-resistant ring 12 and a second heat-resistant ring 11, the outer surface of the threaded shaft 3 is sleeved with a first anti-slip gasket 10, the upper surface of the first anti-slip gasket 10 is fixedly connected to the bottom surface of the end cap 1, and the first anti-slip gasket 10 can increase the friction between the end cap 1 and the workpiece to prevent slipping.

[0025] The upper surface of the threaded shaft 3 is fixedly connected with a first heat-resistant layer 15, and the bottom surface of the threaded shaft 3 is fixedly connected with a second heat-resistant layer 18. The first heat-resistant layer 15 and the second heat-resistant layer 18 both contain a certain amount of tungsten material. Tungsten is a metal element, and its simple substance is a silvery-white and shiny metal with high hardness and high melting point. It is not corroded by air at room temperature and has relatively stable chemical properties. It can increase the heat resistance of the threaded shaft 3. The upper surface of the first heat-resistant layer 15 is fixedly connected with a third heat-resistant layer 13, and the upper surface of the first heat-resistant ring 12 is fixedly connected with a first sealing gasket 6. The bottom surface of the first sealing gasket 6 is fixedly connected to the upper surface of the end head 1. Through the first sealing gasket 6, the first heat-resistant ring 12 can be conveniently sealed, thereby effectively increasing the sealing and fixation of the first heat-resistant ring 12.

[0026] The bottom surface of the second heat-resistant layer 18 is fixedly connected to the fourth heat-resistant layer 17, wherein the third heat-resistant layer 13 and the fourth heat-resistant layer 17 contain a certain amount of molybdenum material. Molybdenum is a transition metal element and a trace element necessary for the human body, animals and plants. The molybdenum element is a silvery-white metal, which is hard, high-temperature resistant and tough, further increasing the heat resistance of the threaded shaft 3. The upper surface of the third heat-resistant layer 13 is fixedly connected to the fifth heat-resistant layer 14, and the upper surface of the second heat-resistant ring 11 is fixedly connected to the second sealing gasket 19. The bottom surface of the second sealing gasket 19 is fixedly connected to the upper surface of the nut 4. The second heat-resistant ring 11 can be conveniently sealed through the second sealing gasket 19, which effectively increases the sealing and tightness of the second heat-resistant ring 11.

[0027] The bottom surface of the fourth heat-resistant layer 17 is fixedly connected to the sixth heat-resistant layer 16, wherein the fifth heat-resistant layer 14 and the sixth heat-resistant layer 16 contain a certain amount of tantalum material. Tantalum is a metal element. Tantalum mainly exists in tantalite and coexists with niobium. Tantalum has moderate hardness and has certain high temperature resistance, which effectively increases the heat resistance of the threaded shaft 3. The outer surface of the threaded shaft 3 is provided with a second anti-slip gasket 5, and the bottom surface of the second anti-slip gasket 5 is in contact with the upper surface of the second sealing gasket 19. The second anti-slip gasket 5 can increase the friction between the nut 4 and the workpiece, thereby effectively tightening it.

[0028] The working principle of the utility model is: when in use, the workpiece or equipment can be fixed directly through the cooperation of the threaded shaft 3 and the nut 4, wherein the first anti-skid gasket 10 and the second anti-skid gasket 5 can increase the friction of the bolt on the fixing part as a whole, thereby increasing the fixing effect; when used under high temperature conditions, the end head 1 is provided with a first heat-resistant ring 12 and the nut 4 is provided with a second heat-resistant ring 11, thereby effectively increasing the overall high-temperature resistance of the end head 1 and the nut 4; the first heat-resistant ring 12 and the second heat-resistant ring 11 are provided inside the two, thereby effectively isolating the external high temperature and increasing the service life of the bolt. The middle threaded shaft 3 is internally provided with a first heat-resistant layer 15, a second heat-resistant layer 18, a third heat-resistant layer 13, a fourth heat-resistant layer 17, a fifth heat-resistant layer 14 and a sixth heat-resistant layer 16, which can effectively increase the heat resistance of the threaded shaft 3, and cooperate with the first heat-resistant ring 12 and the second heat-resistant ring 11 to effectively increase the high temperature resistance of the entire bolt. While isolating the heat through the heat-resistant material, it can also increase the overall service life and performance of the bolt, avoiding the problem that the bolt has poor functionality, the internal structure of the bolt is easily damaged in a high temperature environment or under long-term friction and other extrusion, and the bolt as a whole is prone to breakage.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel high temperature resistant bolt, comprising an end (1), characterized in that: The bottom surface of the end head (1) is fixedly connected with a threaded shaft (3), the upper surface of the end head (1) is provided with a hexagonal opening (7), the outer surface of the threaded shaft (3) is threadedly connected with a nut (4), the upper surface of the end head (1) and the upper surface of the nut (4) are respectively provided with a first mounting groove (8) and a second mounting groove (9), the inner wall of the first mounting groove (8) and the inner wall of the second mounting groove (9) are respectively fixedly connected with a first heat-resistant ring (12) and a second heat-resistant ring (11), the threaded shaft (3) is provided with a hexagonal opening (7), the outer surface of the threaded shaft (3) is threadedly connected with a nut (4), the upper surface of the end head (1) and the upper surface of the nut (4) are respectively provided with a first mounting groove (8) and a second mounting groove (9), The upper surface of the shaft (3) is fixedly connected with a first heat-resistant layer (15), the bottom surface of the threaded shaft (3) is fixedly connected with a second heat-resistant layer (18), the upper surface of the first heat-resistant layer (15) is fixedly connected with a third heat-resistant layer (13), the bottom surface of the second heat-resistant layer (18) is fixedly connected with a fourth heat-resistant layer (17), the upper surface of the third heat-resistant layer (13) is fixedly connected with a fifth heat-resistant layer (14), and the bottom surface of the fourth heat-resistant layer (17) is fixedly connected with a sixth heat-resistant layer (16).

2. A new type of high temperature resistant bolt according to claim 1, characterized in that: A plurality of identical anti-slip strips (2) are arranged on the outer side of the end head (1), and the outer surface of each anti-slip strip (2) is fixedly connected to the outer surface of the end head (1).

3. A new type of high temperature resistant bolt according to claim 1, characterized in that: The outer surface of the threaded shaft (3) is sleeved with a first anti-slip gasket (10), and the upper surface of the first anti-slip gasket (10) is fixedly connected to the bottom surface of the end head (1).

4. A new type of high temperature resistant bolt according to claim 1, characterized in that: The upper surface of the first heat-resistant ring (12) is fixedly connected to a first sealing gasket (6), and the bottom surface of the first sealing gasket (6) is fixedly connected to the upper surface of the end head (1).

5. The novel high temperature resistant bolt according to claim 1 is characterized in that: A second sealing gasket (19) is fixedly connected to the upper surface of the second heat-resistant ring (11), and a bottom surface of the second sealing gasket (19) is fixedly connected to the upper surface of the nut (4).

6. A new type of high temperature resistant bolt according to claim 5, characterized in that: The outer surface of the threaded shaft (3) is sleeved with a second anti-slip gasket (5), and the bottom surface of the second anti-slip gasket (5) is in contact with the upper surface of the second sealing gasket (19).

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