Fastening bolt with seal
By designing sealing grooves and embedded sealing rings on the bolts, combined with the design of anti-slip teeth, the problems of fluid leakage and looseness of traditional bolts in the sealing environment are solved, achieving better sealing effect and connection stability.
Patent Information
- Application Number
- CN202421440301.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-24
AI Technical Summary
In an environment where a traditional bolt needs to be sealed, fluids such as oil or gas are easily leaked outward along their threads, and the bolt body is easily loosened.
Design a fastening bolt with its own seal, with sealing grooves on the root or cylinder of the bolt, and a sealing ring is embedded, which abuts the connecting workpiece through anti-slip teeth, increases the pressure between the nut and the connecting workpiece, forming a Sealed chamber to prevent fluid leakage.
Effectively prevent fluids such as oil or gas from leaking outward along the threads of the bolt body, and prevent loosening of the bolt body, enhancing the sealing effect and connection stability.
Smart Images
Figure CN222458033U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bolts, and more specifically to a self-sealing fastening bolt. Background Art
[0002] Bolt: A mechanical part, a cylindrical threaded fastener that is matched with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which must be matched with a nut 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, so the bolt connection is a detachable connection.
[0003] The main function of traditional bolts is to achieve connection and tightening. In an environment that requires sealing, fluids such as oil or gas can leak out along their threads.
[0004] A self-sealing fastening bolt technology is now proposed. On the basis of traditional bolts, a sealing groove is opened on the root of the bolt or the bolt cylinder, and the sealing material is placed in the groove. A sealing cavity is formed by using the bolt head or the cylinder and the surface of the connected workpiece. The sealing material is filled in the sealing cavity to achieve sealing of fluids such as oil or gas. Therefore, we propose a self-sealing fastening bolt to solve the above-mentioned problems. Utility Model Content
[0005] 1. Technical issues to be solved
[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a self-sealing fastening bolt, which can utilize the sealing rubber ring embedded in the inner side of the sealing groove to fit tightly with the connected workpiece, and abut against the connected workpiece through the anti-slip teeth, thereby increasing the pressure between the nut and the connected workpiece, thereby effectively preventing the bolt body from loosening, and forming a sealed cavity through the part where the sealing rubber ring fits with the connected workpiece, which can effectively prevent fluids such as oil or gas from leaking outward along the threads of the bolt body.
[0007] 2. Technical solution
[0008] To solve the above problems, the utility model adopts the following technical solutions.
[0009] A self-sealing fastening bolt comprises a connecting workpiece and a bolt body connected to the connecting workpiece, a sealing groove is provided on the lower surface of the nut of the bolt body, a sealing rubber ring is embedded in the inner side of the sealing groove, and the sealing rubber ring is tightly fitted to the connecting workpiece;
[0010] One side of the sealing groove is fixedly connected with an anti-skid tooth at the edge of the nut lower surface of the bolt body, and the anti-skid tooth abuts against the connecting workpiece, and the sealing rubber ring protrudes from the bottom end of the anti-skid tooth.
[0011] Furthermore, a sealing cavity is formed in the area where the sealing rubber ring is combined with the connecting workpiece, and the sealing cavity is located at the position where the stud of the bolt body is combined with the nut.
[0012] Furthermore, a plurality of anti-slip teeth are arranged at radial positions of the bolt body.
[0013] Furthermore, the cross section of the sealing rubber ring is arranged in an O-shaped structure.
[0014] Furthermore, a threaded hole is provided on the surface of the connecting workpiece, and the threaded hole is threadedly connected to the bolt body.
[0015] Furthermore, the axial length of the threaded hole is matched with the stud length of the bolt body.
[0016] Furthermore, a hexagonal groove is formed on the upper surface of the nut of the bolt body, and the center of the hexagonal groove corresponds to the axis of the bolt body.
[0017] 3. Beneficial effects
[0018] Compared with the prior art, the advantages of the present invention are:
[0019] (1) In this scheme, a tool is used to screw the bolt body into the connection workpiece until the sealing rubber ring embedded in the inner side of the sealing groove is tightly fitted with the connection workpiece, and the anti-slip teeth are used to abut against the connection workpiece, thereby increasing the pressure between the nut and the connection workpiece, thereby effectively preventing the bolt body from loosening. A sealing cavity is formed by the part where the sealing rubber ring and the connection workpiece are in contact, which can effectively prevent fluids such as oil or gas from leaking out along the threads of the bolt body.
[0020] (2) In this solution, a hexagonal bent rod is connected to a hexagonal groove, so that when the bolt body is installed in a narrow space, the hexagonal bent rod can be used to tighten the bolt body. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0022] Figure 2 This is a schematic diagram of the sealing groove structure of the utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the connection workpiece and the bolt body of the utility model;
[0024] Figure 4 It is a cross-sectional schematic diagram of the sealing rubber ring of the utility model;
[0025] Figure 5 It is a schematic diagram of the hexagonal groove structure of the utility model.
[0026] Description of the numbers in the figure:
[0027] 1. Connecting workpiece; 2. Bolt body; 3. Sealing groove; 4. Sealing rubber ring; 5. Anti-slip teeth; 6. Threaded hole; 7. Sealing cavity; 8. Hexagonal groove. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.
[0029] Example:
[0030] See also Figure 1-5 A self-sealing fastening bolt comprises a connecting workpiece 1 and a bolt body 2 connected to the connecting workpiece 1, a sealing groove 3 is provided on the lower surface of the nut of the bolt body 2, a sealing rubber ring 4 is embedded in the inner side of the sealing groove 3, and the sealing rubber ring 4 is tightly fitted to the connecting workpiece 1;
[0031] An anti-skid tooth 5 is fixedly connected to the edge of the nut lower surface of the bolt body 2 on one side of the sealing groove 3, and the anti-skid tooth 5 abuts against the connecting workpiece 1, and the sealing rubber ring 4 protrudes from the bottom end of the anti-skid tooth 5;
[0032] It should be noted that when the self-sealing fastening bolt is in use, a tool is used to screw the bolt body 2 into the connecting workpiece 1 until the sealing rubber ring 4 embedded in the inner side of the sealing groove 3 is tightly fitted with the connecting workpiece 1, and the anti-slip teeth 5 are abutted against the connecting workpiece 1 to increase the pressure between the nut and the connecting workpiece 1, thereby effectively preventing the bolt body 2 from loosening. A sealing cavity 7 is formed by the part where the sealing rubber ring 4 fits with the connecting workpiece 1, which can effectively prevent fluids such as oil or gas from leaking out along the threads of the bolt body 2.
[0033] like Figure 1 , Figure 3 As shown, the sealing rubber ring 4 and the connecting workpiece 1 form a sealing cavity 7 in the area where they are combined, and the sealing cavity 7 is located at the part where the stud of the bolt body 2 is combined with the nut;
[0034] It should be noted that the sealing cavity 7 is formed by the portion where the sealing rubber ring 4 and the connecting workpiece 1 are in contact with each other, which can effectively prevent fluids such as oil or gas from leaking outward along the threads of the bolt body 2 .
[0035] like Figure 1 As shown, a plurality of anti-slip teeth 5 are provided at radial positions of the bolt body 2;
[0036] It should be noted that, by the anti-slip teeth 5 abutting against the connected workpiece 1 , the pressure between the nut and the connected workpiece 1 is increased, thereby effectively preventing the bolt body 2 from loosening.
[0037] like Figure 4 As shown, the cross section of the sealing rubber ring 4 is arranged in an O-shaped structure;
[0038] It should be noted that only a very small compression force is required to achieve a sealing effect, and the friction is small, the anti-twisting force is strong, and it is not easy to slide.
[0039] like Figure 3 As shown, a threaded hole 6 is provided on the surface of the connecting workpiece 1, and the threaded hole 6 is threadedly connected to the bolt body 2, and the axial length of the threaded hole 6 is adapted to the stud length of the bolt body 2;
[0040] It should be noted that the bolt body 2 is screwed into the threaded hole 6 provided in the connection workpiece 1 by using a tool until the sealing rubber ring 4 embedded in the inner side of the sealing groove 3 is tightly fitted with the connection workpiece 1 .
[0041] like Figure 5 As shown, a hexagonal groove 8 is formed on the upper surface of the nut of the bolt body 2, and the center of the hexagonal groove 8 corresponds to the axis of the bolt body 2;
[0042] It should be noted that the hexagonal bent rod is connected to the hexagonal groove 8 so that when the bolt body 2 is installed in a narrow space, it is convenient to tighten the bolt body 2 using the hexagonal bent rod.
[0043] When in use: use a tool to screw the bolt body 2 into the connection workpiece 1 until the sealing rubber ring 4 embedded in the inner side of the sealing groove 3 is tightly fitted with the connection workpiece 1, and abuts against the connection workpiece 1 through the anti-slip teeth 5 to increase the pressure between the nut and the connection workpiece 1, thereby effectively preventing the bolt body 2 from loosening, and forming a sealing cavity 7 through the part where the sealing rubber ring 4 and the connection workpiece 1 fit.
[0044] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.
Claims
1. A self-sealing fastening bolt, comprising a connecting workpiece (1) and a bolt body (2) connected to the connecting workpiece (1), characterized in that: A sealing groove (3) is provided on the lower surface of the nut of the bolt body (2), a sealing rubber ring (4) is embedded in the inner side of the sealing groove (3), and the sealing rubber ring (4) is tightly fitted to the connecting workpiece (1); One side of the sealing groove (3) is fixedly connected with an anti-slip tooth (5) at the edge of the lower surface of the nut of the bolt body (2), and the anti-slip tooth (5) abuts against the connecting workpiece (1), and the sealing rubber ring (4) protrudes from the bottom end of the anti-slip tooth (5).
2. A self-sealing fastening bolt according to claim 1, characterized in that: The area where the sealing rubber ring (4) and the connecting workpiece (1) are combined forms a sealing cavity (7), and the sealing cavity (7) is located at the position where the stud and the nut of the bolt body (2) are combined.
3. A self-sealing fastening bolt according to claim 1, characterized in that: A plurality of anti-slip teeth (5) are arranged at radial positions of the bolt body (2).
4. A self-sealing fastening bolt according to claim 1, characterized in that: The cross section of the sealing rubber ring (4) is arranged in an O-shaped structure.
5. The self-sealing fastening bolt according to claim 1, characterized in that: A threaded hole (6) is provided on the surface of the connecting workpiece (1), and the threaded hole (6) is threadedly connected to the bolt body (2).
6. A self-sealing fastening bolt according to claim 5, characterized in that: The axial length of the threaded hole (6) is matched to the stud length of the bolt body (2).
7. The self-sealing fastening bolt according to claim 1, characterized in that: A hexagonal groove (8) is provided on the upper surface of the nut of the bolt body (2), and the center of the hexagonal groove (8) corresponds to the axis of the bolt body (2).