A bolt assembly with protective function for nuclear power

Abstract

The present invention provides a bolt group with a protective function for nuclear power, comprising a threaded rod, a circular cover for protection is arranged at the lower end of the threaded rod and penetrates the circular cover, a first hexagonal groove is arranged inside the lower side of the circular cover, and a hexagonal nut is clamped inside the first hexagonal groove, the hexagonal nut is threadedly connected to the annular end of the threaded rod, a folding tube is arranged at the lower end of the circular cover, and the folding tube is fixedly connected to a disc at one end away from the circular cover, a first annular groove is arranged on the annular inner wall of the upper side of the circular cover, and a retaining spring is assembled on the first annular groove. Compared with the prior art, the present invention has the following beneficial effects: the first hexagonal groove and the retaining spring can be used to restrict the hexagonal nut to be installed in the circular cover, and the circular cover, the folding tube and the disc can be used to protect the threaded rod and the hexagonal nut, effectively preventing the threaded rod and the hexagonal nut from corrosion, facilitating use, and improving service life.

Description

Technical Field

[0001] The invention discloses a bolt group with a protective function for nuclear power, belonging to the technical field of nuclear power construction. Background Art

[0002] The fusion of light atomic nuclei and the fission of heavy atomic nuclei can both release energy, which are called nuclear fusion energy and nuclear fission energy respectively. A large amount of heat is released during fusion or fission, and the energy is converted according to nuclear energy-mechanical energy-electrical energy. This kind of electricity can be called nuclear power. With the rapid development of modern science and technology, nuclear power technology has been widely used. In nuclear power construction, bolt groups are often required to fasten and install nuclear power corresponding equipment on related carriers. However, during long-term use, bolts and nuts are easily oxidized, causing damage to bolts and nuts, which will affect their service life. Therefore, it is necessary to design a bolt group with protective function for nuclear power to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a bolt group with a protective function for nuclear power, so as to solve the problem raised in the above background technology that the bolts and nuts are easily oxidized during long-term use, causing damage to the bolts and nuts and affecting their service life.

[0004] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a bolt group with protective function for nuclear power, comprising a threaded rod, the upper end of the threaded rod is fixedly connected to an operating mechanism for rotation operation, the lower end of the threaded rod is provided with a circular cover for protection and penetrates the circular cover, a first hexagonal groove is provided inside the lower side of the circular cover, and a hexagonal nut is clamped inside the first hexagonal groove, the hexagonal nut is threadedly connected to the annular end of the threaded rod, a folding tube is provided at the lower end of the circular cover, and the circular cover is connected to the folding tube. The folding tube is fixedly connected to a plugging piece at one end away from the circular cover, a folding tube is provided at the lower end of the threaded rod and extends into the folding tube, a first annular groove is provided on the annular inner wall on the upper side of the circular cover, and the first annular groove is located on the upper side of the first hexagonal groove, a retaining ring is assembled on the first annular groove, and the retaining ring is located at the upper end of the hexagonal nut, the right end of the circular cover is fixedly connected to the hollow tube, and the hollow tube extends to the inner wall of the first hexagonal groove facing one end of the circular cover, a zinc rod is slidably connected inside the hollow tube, and the zinc rod extends to the left end of the hollow tube and contacts the outer end surface of the hexagonal nut.

[0005] Furthermore, a mounting ring is fixedly connected to the edge of the upper end of the circular cover and is located outside the threaded rod. A second annular groove is provided at the upper end of the mounting ring, and a sealing member for sealing is provided on the second annular groove. The mounting ring and the circular cover are integrated into one structure.

[0006] Furthermore, a through hole for threaded rod installation is provided in the middle of the lower end of the circular cover, the middle of the lower end of the circular cover is fixedly connected to the inner cylinder, and the center lines of the inner cylinder, the through hole and the hexagonal nut coincide with each other, the lower end of the inner cylinder is threadedly connected to the outer cylinder and the inner cylinder extends into the interior of the outer cylinder, and the lower end of the outer cylinder is connected to a fixed folding tube.

[0007] Furthermore, the operating mechanism includes a fixed plate fixed to the upper end of the threaded rod, a cylinder is fitted on the upper end of the fixed plate, a plurality of convex strips arranged in a circle are equidistantly fixedly connected to the edge of the upper end of the fixed plate, a plurality of slots arranged in a circle and used in conjunction with the convex strips are equidistantly provided at the edge of the lower end of the cylinder, and the convex strips are mounted inside the slots.

[0008] Furthermore, a hexagonal column is arranged at a middle position of the upper end of the cylinder, and a second hexagonal groove is opened at a middle position of the upper end of the hexagonal column.

[0009] Furthermore, a plurality of circularly arranged recessed holes are equidistantly provided in the middle of the upper end of the cylinder, and a plurality of circularly arranged inserted columns are equidistantly fixedly connected to the lower end of the hexagonal column. The inserted columns are inserted into the recessed holes and have an interference fit with the recessed holes.

[0010] Furthermore, a protective member having a protective function is disposed at the lower end of the fixing plate, and the protective member is disposed on the outside of the threaded rod.

[0011] Furthermore, a plurality of protrusions having an anti-slip function are fixedly connected to both upper and lower ends of the protective member, and the protrusions and the protective member form an integrated structure.

[0012] Furthermore, the folding tube is filled with graphite lithium-based grease and the graphite lithium-based grease is located at the upper end of the plugging member, and the lower part of the threaded rod extends into the graphite lithium-based grease.

[0013] Beneficial effects of the invention: The invention provides a bolt group with protective function for nuclear power.

[0014] 1. The hexagonal nut can be inserted into the first hexagonal groove in the circular cover, and the hexagonal nut can be restricted and installed in the circular cover by using a retaining spring, and the threaded rod can be passed through the parts to be fastened and installed and the carrier, and then the threaded rod can be extended into the circular cover and contact with the hexagonal nut in the circular cover, so that the threaded rod and the hexagonal nut can be assembled to achieve the fastening and installation of the parts to be fastened on the carrier, and a sealed cavity can be formed by using the circular cover, the folding tube and the disc, and then the sealed cavity can be used to protect the threaded rod and the hexagonal nut, effectively preventing the threaded rod and the hexagonal nut from corrosion, which is easy to use and prolongs the service life, and then the folding tube can be contracted to adjust the size of the sealed cavity to meet the use of threaded rods of different lengths, and the applicability is good.

[0015] 2. By utilizing the convex strips and the card slots, the threaded rod can no longer be rotated after being fastened and installed, which can provide good protection to prevent the fastened parts from being accidentally hit and rotated, and prevent the fastened parts from loosening.

[0016] 3. The contact design between the zinc rod and the hexagonal nut will cause an oxidation-reduction reaction between the two, thereby effectively preventing the corrosion of the hexagonal nut. After a period of time, the zinc rod can be knocked to keep it in contact with the hexagonal nut at all times, thereby improving the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 This is a schematic structural diagram of a bolt group with protective function for nuclear power of the present invention;

[0019] Figure 2 It is a schematic diagram of an operating mechanism of a bolt group with a protective function for nuclear power according to the present invention;

[0020] Figure 3 A cross-sectional view of a threaded rod of a bolt assembly with a protective function for nuclear power according to the present invention;

[0021] Figure 4 The invention discloses a cross-sectional view of a circular cover of a bolt group with a protective function for nuclear power.

[0022] In the figure: 1-operating mechanism, 2-threaded rod, 3-circular cover, 4-folding tube, 5-disc, 6-circlip, 7-through hole, 8-hexagonal nut, 9-first hexagonal groove, 11-second hexagonal groove, 12-hexagonal column, 13-fixed disk, 14-convex strip, 15-slot, 16-insertion column, 17-concave hole, 18-cylinder, 19-first annular rubber pad, 31-mounting ring, 32-second annular rubber pad, 33-outer cylinder, 34-inner cylinder, 35-through hole, 71-hollow tube, 72-zinc rod, 191-protrusion. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] See also Figure 1-Figure 4The present invention provides a technical solution: a bolt group with protective function for nuclear power, comprising a threaded rod 2, the upper end of the threaded rod 2 is fixedly connected to an operating mechanism 1 for rotation operation, the threaded rod 2 can be rotated by the operating mechanism 1, a circular cover 3 for protection is arranged at the lower end of the threaded rod 2 and penetrates the circular cover 3, the connection position between the threaded rod 2 and the hexagonal nut 7 can be protected by the circular cover 3, a first hexagonal groove 8 is provided inside the lower side of the circular cover 3, the first hexagonal groove 8 can make the hexagonal nut 7 and the circular cover 3 quickly disassembled and assembled, and the circular cover 3 and the hexagonal nut 7 can be synchronously rotated, and the hexagonal nut 7 is clamped in the first hexagonal groove 8, the hexagonal nut 7 is threadedly connected to the annular end of the threaded rod 2, and the threaded rod 2 When assembled with the hexagonal nut 7, the components to be fastened and installed can be fastened and installed on the carrier. A folding tube 4 is arranged at the lower end of the circular cover 3 and the circular cover 3 is connected to the folding tube 4. The folding tube 4 is fixedly connected to the disc 5 at one end away from the circular cover 3. The disc 5 is used in conjunction with the folding tube 4 to protect the extension section of the threaded rod 2 from the circular cover 3. A folding tube 4 is arranged at the lower end of the threaded rod 2 and extends into the folding tube 4. A first annular groove is provided on the upper annular inner wall of the circular cover 3 and the first annular groove is located on the upper side of the first hexagonal groove 8. Through the first annular groove, an installation space can be provided for the retaining spring 6. The retaining spring 6 is assembled on the first annular groove and the retaining spring 6 is located at the upper end of the hexagonal nut 7. Through the retaining spring 6, the hexagonal nut 7 can be restricted and installed in the circular cover 3.

[0025] Specifically, first place the hexagonal nut 7 into the circular cover 3, and insert the hexagonal nut 7 into the first hexagonal groove 8 in the circular cover 3, and then assemble the retaining spring 6 into the first annular groove to achieve quick disassembly and assembly between the hexagonal nut 7 and the circular cover 3, which is convenient for assembly and replacement, and then place the circular cover 3 at one end of the carrier, and place the parts to be fastened and installed at the other end of the carrier, and then pass the threaded rod 2 through the parts to be fastened and installed and the carrier, and then extend the threaded rod 2 into the circular cover 3 and contact the hexagonal nut 7 in the circular cover 3, and then rotate the operating mechanism 1, so that the threaded rod 2 rotates, and then the threaded rod 2 and The hexagonal nut 7 is threadedly connected to realize the fastening and installation of the components to be fastened to the carrier. At this time, the circular cover 3 is attached to the carrier, and then the folding tube 4 is installed to the lower end of the circular cover 3. The circular cover 3, the folding tube 4 and the disc 5 are used to form a sealed cavity. The sealed cavity can then be used to protect the threaded rod 2 and the hexagonal nut 7, and effectively prevent the threaded rod 2 and the hexagonal nut 7 from corrosion, which is convenient for use and prolongs the service life. Then, the disc 5 is pressed to shrink the folding tube 4, so that the disc 5 contacts the bottom of the threaded rod 2. The size of the sealed cavity can be adjusted to meet the use of threaded rods 2 of different lengths, and it has good applicability.

[0026] As an embodiment of the present invention: the mounting ring 31 is fixedly connected to the edge of the upper end of the circular cover 3 and the mounting ring 31 is located on the outside of the threaded rod 2. A second annular groove is provided on the upper end of the mounting ring 31. The second annular groove can provide an installation space for the second annular rubber pad 32. A second annular rubber pad 32 for sealing is provided on the second annular groove. The sealing connection between the circular cover 3 and the mounting carrier is achieved through the second annular rubber pad 32. The mounting ring 31 and the circular cover 3 are integrated into one structure. The design of the integrated structure is convenient for production. Specifically, the mounting ring 31 is provided at the upper end of the circular cover 3, and the second annular rubber pad 32 is assembled on the second annular groove of the mounting ring 31. After the threaded rod 2 and the hexagonal nut 7 are assembled, the mounting ring 31 can be arranged at one end of the carrier, and the second annular rubber pad 32 is used to make the mounting ring 31 and the carrier sealed, thereby effectively preventing impurities from entering the circular cover 3 and further improving safety.

[0027] As an embodiment of the present invention: a through hole 35 for installing the threaded rod 2 is opened in the middle position of the lower end of the circular cover 3, and the threaded rod 2 can pass through the circular cover 3 through the through hole 35. The inner cylinder 34 is fixedly connected to the middle position of the lower end of the circular cover 3, and a mounting carrier can be provided for the outer cylinder 33 through the inner cylinder 34, and the center lines of the inner cylinder 34, the through hole 35 and the hexagonal nut 7 coincide with each other. The lower end of the inner cylinder 34 is threadedly connected to the outer cylinder 33 and the inner cylinder 34 extends into the outer cylinder 33, and a mounting carrier can be provided for the folding tube 4 through the outer cylinder 33. The lower end of the outer cylinder 33 is connected to the fixed folding tube 4. Specifically, the outer cylinder 33 can be rotated. Because the outer cylinder 33 is threadedly connected to the inner cylinder 34, the outer cylinder 33 rotates and moves downward along the inner cylinder 34, so that the folding tube 4 is separated from the circular cover 3, and the folding tube 4 is quickly disassembled and assembled, which is convenient for assembly and maintenance.

[0028] As an embodiment of the present invention, the operating mechanism 1 includes a fixed plate 13 fixed to the upper end of the threaded rod 2. The fixed plate 13 can provide a mounting carrier for the threaded rod 2 and the convex strip 14, and also provide a placement table for the cylinder 18. The upper end of the fixed plate 13 is fitted with a cylinder 18, and the cylinder 18 can provide a processing carrier for the slot 15. The upper edge of the fixed plate 13 is equidistantly fixedly connected to a plurality of convex strips 14 arranged in a circle, and the lower edge of the cylinder 18 is equidistantly provided with a plurality of slots 15 arranged in a circle and used in conjunction with the convex strip 14. The slots 15 can provide an installation space for the convex strip 14, and the convex strip 14 is clamped inside the slots 15. The convex strip 14 and the slots 15 are assembled and used, which can realize the fast disassembly and assembly between the fixed plate 13 and the cylinder 18, and also The cylinder 18 can be synchronously rotated with the fixed disk 13. Specifically, the cylinder 18 can be placed on the upper end of the fixed disk 13, and the convex strip 14 on the fixed disk 13 can be inserted into the groove 15 on the cylinder 18. When the cylinder 18 rotates, the fixed disk 13 can be rotated by utilizing the convex strip 14 and the groove 15, so that the threaded rod 2 can be rotated, and then the threaded rod 2 and the hexagonal nut 7 can be threadedly connected. After completion, the cylinder 18 can be pulled upward to separate the convex strip 14 from the groove 15, and the cylinder 18 can be taken out, so that the threaded rod 2 cannot be rotated after being tightened and installed, which can play a good protective role to prevent the parts it tightens from being accidentally hit and rotating, and prevent the parts tightened from loosening.

[0029] As an embodiment of the present invention: a hexagonal column 12 is arranged in the middle position of the upper end of the cylinder 18, through which the hexagonal column 12 can be used in conjunction with an adjustable wrench to rotate the cylinder 18; a second hexagonal groove 11 is provided in the middle position of the upper end of the hexagonal column 12, through which the hexagonal wrench can be used in conjunction with the cylinder 18 to rotate; specifically, the clamping head of the adjustable wrench can be assembled to the outside of the hexagonal column 12, so that the adjustable wrench can be used to rotate the cylinder 18, and the end of the hexagonal wrench can be inserted into the second hexagonal groove 11, so that the hexagonal wrench can be used to rotate the cylinder 18, thereby realizing that the cylinder 18 can be rotated using a variety of tools, and the applicability is good.

[0030] As an embodiment of the present invention: a plurality of recessed holes 17 arranged in a circle are equidistantly provided at the middle position of the upper end of the cylinder 18, and the recessed holes 17 can provide installation space for the plug-in column 16, and the lower end of the hexagonal column 12 is equidistantly fixedly connected to the plurality of plug-in columns 16 arranged in a circle, and the plug-in columns 16 and the recessed holes 17 are assembled and used to realize the rapid disassembly and assembly of the hexagonal column 12, and the plug-in column 16 is inserted into the inside of the recessed hole 17 and has an interference fit with the recessed hole 17. Specifically, the hexagonal column 12 can be used to place the plug-in column 16 at the upper end of the recessed hole 17 on the cylinder 18, and the hexagonal column 12 is pressed downward, so that the plug-in column 16 is inserted into the inside of the recessed hole 17, and then the hexagonal column 12 is installed on the cylinder 18, so that the rapid disassembly and assembly of the hexagonal column 12 is realized, and the assembly and replacement of the hexagonal column 12 are convenient.

[0031] As an embodiment of the present invention: a first annular rubber pad 19 having a protective function is disposed at the lower end of the fixed disk 13. The protective function is achieved through the first annular rubber pad 19, and the first annular rubber pad 19 is disposed on the outside of the threaded rod 2. Specifically, the first annular rubber pad 19 is disposed at the lower end of the fixed disk 13. The first annular rubber pad 19 can be used to isolate the fixed disk 13 from the components that need to be fastened and installed, thereby achieving a protective function and having high safety.

[0032] As an embodiment of the present invention: the upper and lower ends of the first annular rubber pad 19 are fixedly connected to a plurality of protrusions 191 which have an anti-slip function, and the protrusions 191 and the protective member are integrated into a structure. The design of the integrated structure is convenient for production. Specifically, the protrusions 191 are used to increase the friction coefficient, thereby achieving an anti-slip function and making the installation stability of the fixed plate 13 high.

[0033] As an embodiment of the present invention: the right end of the circular cover 3 is fixedly connected to the hollow tube 71, and an installation space is provided for the zinc rod 72 through the hollow tube 71, and the hollow tube 71 extends to the inner wall of the first hexagonal groove 8 facing one end of the circular cover 3, and the zinc rod 72 is slidably connected inside the hollow tube 71, and the hexagonal nut 7 is protected by the zinc rod 72, and the zinc rod 72 extends to the left end of the hollow tube 71 and contacts with the outer end surface of the hexagonal nut 7. Specifically, because the hexagonal nut 7 is often a metal product, the contact between the zinc rod 72 and the hexagonal nut 7 will cause an oxidation-reduction reaction between the two, thereby effectively preventing the corrosion of the hexagonal nut 7, and after a period of time, the zinc rod 72 can be knocked to ensure that the zinc rod 72 is always in contact with the hexagonal nut 7, thereby improving the protection effect.

[0034] As an embodiment of the present invention: the folding tube 4 is filled with graphite lithium-based grease and the graphite lithium-based grease is located at the upper end of the disc 5, and the lower part of the threaded rod 2 extends into the graphite lithium-based grease. Specifically, the graphite lithium-based grease is filled in the cavity formed by the folding tube 4 and the disc 5, and the graphite lithium-based grease is used to isolate the air to achieve the anti-corrosion effect on the threaded rod 2.

[0035] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bolt group with protective function for nuclear power, characterized in that: The invention comprises a threaded rod (2), the upper end of the threaded rod (2) is fixedly connected to an operating mechanism (1) for rotational operation, the lower end of the threaded rod (2) is provided with a circular cover (3) for protection and penetrates the circular cover (3), a first hexagonal groove (8) is provided inside the lower side of the circular cover (3), and a hexagonal nut (7) is clamped inside the first hexagonal groove (8), the hexagonal nut (7) is threadedly connected to the annular end of the threaded rod (2), a folding tube (4) is provided at the lower end of the circular cover (3), and the circular cover (3) and the folding tube (4) are arranged in communication, the folding tube (4) is fixedly connected to a blocking member at one end away from the circular cover (3), and the threaded rod (2) is provided with a folding tube (4) at one end thereof. A folding tube (4) is arranged at the lower end and extends into the folding tube (4); a first annular groove is provided on the annular inner wall on the upper side of the circular cover (3), and the first annular groove is located on the upper side of the first hexagonal groove (8); a retaining spring (6) is mounted on the first annular groove, and the retaining spring (6) is located at the upper end of the hexagonal nut (7); the right end of the circular cover (3) is fixedly connected to the hollow tube (71), and the hollow tube (71) extends to the inner wall of the first hexagonal groove (8) facing one end of the circular cover (3); a zinc rod (72) is slidably connected to the inside of the hollow tube (71), and the zinc rod (72) extends to the left end of the hollow tube (71) and contacts the outer end surface of the hexagonal nut (7).

2. A bolt assembly with protective function for nuclear power according to claim 1, characterized in that: The upper edge of the circular cover (3) is fixedly connected to a mounting ring (31), and the mounting ring (31) is located outside the threaded rod (2). A second annular groove is provided at the upper end of the mounting ring (31), and a sealing member for sealing is provided on the second annular groove. The mounting ring (31) and the circular cover (3) are in an integrated structure.

3. The bolt assembly with protective function for nuclear power according to claim 1, characterized in that: A through hole (35) for mounting the threaded rod (2) is provided at the middle position of the lower end of the circular cover (3); the middle position of the lower end of the circular cover (3) is fixedly connected to the inner cylinder (34); the center lines of the inner cylinder (34), the through hole (35) and the hexagonal nut (7) coincide with each other; the lower end of the inner cylinder (34) is threadedly connected to the outer cylinder (33); the inner cylinder (34) extends into the interior of the outer cylinder (33); and the lower end of the outer cylinder (33) is connected to the fixed folding tube (4).

4. The bolt assembly with protective function for nuclear power according to claim 1, characterized in that: The operating mechanism (1) comprises a fixed plate (13) fixed to the upper end of the threaded rod (2); a cylinder (18) is arranged on the upper end of the fixed plate (13); a plurality of convex strips (14) arranged in a circular shape are fixedly connected at equal intervals at the edge of the upper end of the fixed plate (13); a plurality of slots (15) arranged in a circular shape and used in conjunction with the convex strips (14) are provided at equal intervals at the edge of the lower end of the cylinder (18); and the convex strips (14) are clamped in the slots (15).

5. The bolt assembly with protective function for nuclear power according to claim 4, characterized in that: A hexagonal column (12) is arranged at the middle position of the upper end of the cylinder (18), and a second hexagonal groove (11) is provided at the middle position of the upper end of the hexagonal column (12).

6. The bolt assembly with protective function for nuclear power according to claim 5, characterized in that: A plurality of concave holes (17) arranged in a circle are equidistantly provided at the middle of the upper end of the cylinder (18); a plurality of plugging posts (16) arranged in a circle are equidistantly fixedly connected to the lower end of the hexagonal column (12); the plugging posts (16) are inserted into the concave holes (17) and are interference fit with the concave holes (17).

7. The bolt assembly with protective function for nuclear power according to claim 4, characterized in that: A protective member having a protective function is arranged at the lower end of the fixing plate (13), and the protective member is arranged outside the threaded rod (2).

8. The bolt assembly with protective function for nuclear power according to claim 7, characterized in that: A plurality of protrusions (191) having an anti-slip function are fixedly connected to both upper and lower ends of the protective member, and the protrusions (191) and the protective member form an integrated structure.

9. The bolt assembly with protective function for nuclear power according to claim 1, characterized in that: The folding tube (4) is filled with graphite lithium-based lubricating grease and the graphite lithium-based lubricating grease is located at the upper end of the plugging member, and the lower part of the threaded rod (2) extends into the graphite lithium-based lubricating grease.

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