High-strength connecting bolt

Abstract

The utility model relates to the technical field of fasteners, and provides a high-strength connecting bolt which comprises a screw, a gasket and an anti-theft nut, the gasket is provided with a through hole, the screw penetrates through the through hole, one side of the through hole is provided with a protruding part, the protruding part is annular, the anti-theft nut is provided with a threaded hole, the screw is in threaded fit with the threaded hole, and the anti-theft nut is arranged on the gasket in a pressed mode. The anti-theft nut is provided with a hexagonal part and a cylindrical part which are sequentially arranged, the cylindrical part is located on the side, away from the gasket, of the anti-theft nut, an annular groove is formed in the end face of the hexagonal part and used for containing the protruding part, the anti-theft nut is further provided with a glue guiding groove, the annular groove leads to the threaded hole through the glue guiding groove, and the anaerobic glue bag is arranged in the annular groove. The protruding part is configured to abut against the anaerobic plastic bag and damage the anaerobic plastic bag when the anti-theft nut is screwed down. By means of the technical scheme, the technical problem that anaerobic adhesive operation is inconvenient when a wavy guardrail anti-theft bolt is used in the related technology / the prior art is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of fastener, in particular, to a high-strength connecting bolt. BACKGROUND

[0002] Some anti-theft bolts used in special occasions such as wavy guardrails, although increase the difficulty of disassembly to some extent, still have defects. The existing anti-theft bolts of wavy guardrails mainly rely on specific structures (such as the friction between the cylindrical part and the special sleeve head) for disassembly, and their anti-theft effect is limited. With the development of technology and the diversification of tools, these anti-theft bolts can be easily cracked. Moreover, the traditional anti-theft bolts also need to be improved in terms of the firmness of thread connection. The gap between threads can easily cause the connection to loosen, and when subjected to external forces such as vibration and impact, the bolt can loosen or even fall off, affecting the reliability of the connection.

[0003] In terms of installation, if the traditional anti-theft bolts of wavy guardrails want to improve the firmness of the connection, they often need to be pre-coated with glue and other complex operations. Pre-coating with glue not only increases the time and cost of installation, but also cannot be achieved when a part of the wavy guardrail is pre-installed on the actual highway, and one or more people use the sleeve head to quickly fasten it to improve efficiency. At this time, the pre-coating operation cannot be achieved, and the anaerobic glue coating is easily denatured. CONTENT OF THE INVENTION

[0004] To overcome the above-mentioned defects, embodiments of the present disclosure provide a high-strength connecting bolt, which solves the technical problem of inconvenient anaerobic glue operation of the anti-theft bolt of the wavy guardrail in the prior art.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a high-strength connecting bolt, comprising:

[0006] a screw rod;

[0007] a gasket having a through hole, the screw rod penetrating through the through hole, one side of the through hole having a protruding part, the protruding part being annular;

[0008] an anti-theft nut having a threaded hole, the screw rod being threadedly engaged with the threaded hole, the anti-theft nut being pressed on the gasket, the anti-theft nut having a hexagonal part and a cylindrical part, the hexagonal part and the cylindrical part being arranged in sequence, the cylindrical part being located on the side of the anti-theft nut away from the gasket, the end face of the hexagonal part having an annular groove for accommodating the protruding part, the anti-theft nut further having a glue guide groove, the annular groove being connected to the threaded hole through the glue guide groove;

[0009] Anaerobic glue bag, the anaerobic glue bag is arranged in the annular groove, the convex portion is configured to abut against the anaerobic glue bag and damage the anaerobic glue bag when the anti-theft nut is tightened.

[0010] For example, the high-strength connecting bolt provided in at least one embodiment of the present disclosure comprises a plurality of circumferentially arranged glue guide grooves.

[0011] For example, the high-strength connecting bolt provided in at least one embodiment of the present disclosure comprises an annular groove with a depth of more than three times the length of the thread hole pitch.

[0012] For example, the high-strength connecting bolt provided in at least one embodiment of the present disclosure comprises a glue guide groove with a length of more than one third of the length of the thread hole.

[0013] For example, the high-strength connecting bolt provided in at least one embodiment of the present disclosure comprises a convex portion with an outer wall having a mounting groove, and further comprises:

[0014] A sealing ring arranged in the mounting groove.

[0015] For example, the high-strength connecting bolt provided in at least one embodiment of the present disclosure comprises a gasket having a clearance groove located around the through hole and facing the anti-theft nut, and the outer edge of the clearance groove has a first guide surface.

[0016] The anti-theft nut has a deformation portion and an abutting positioning portion, the deformation portion and the abutting positioning portion are respectively located on both sides of the annular groove, the length of the end surface of the deformation portion is longer than the length of the abutting positioning portion, the end portion of the deformation portion has a second guide surface, the first guide surface and the second guide surface abut after the anti-theft nut is tightened, the second guide surface slides along the first guide surface until the deformation portion is deformed by the pushing of the first guide surface, and the abutting positioning portion abuts against the gasket.

[0017] For example, the high-strength connecting bolt provided in at least one embodiment of the present disclosure comprises a plurality of circumferentially arranged deformation portions, and a deformation groove is arranged between any two adjacent deformation portions.

[0018] For example, the high-strength connecting bolt provided in at least one embodiment of the present disclosure comprises a deformation groove that is not in communication with the glue guide groove.

[0019] For example, the high-strength connecting bolt provided in at least one embodiment of the present disclosure comprises an arc-shaped guide surface at the end portion of the convex portion, which is used to guide the convex portion into the annular groove.

[0020] For example, the high-strength connecting bolt provided by at least one embodiment of the present disclosure has a circular ring-shaped or strip-shaped anaerobic glue bag.

[0021] The embodiments of the present disclosure have the following beneficial effects:

[0022] In the present disclosure, the cooperation of the protruding part and the annular groove causes the protruding part to break the anaerobic glue bag when the anti-theft nut is tightened, and the anaerobic glue flows out and enters the threaded hole through the glue guide groove and cooperates with the threads of the screw rod. After the anaerobic glue solidifies, it will fill the gap between the threads, so that the nut and the screw rod are tightly bonded together, increasing the difficulty of disassembly. General tools are difficult to easily unscrew the anti-theft nut, effectively preventing others from disassembling the bolt at will, and playing a good protective role for some anti-theft occasions, such as outdoor public facilities, mechanical equipment, etc. The anaerobic glue will form a high-strength adhesive layer after solidification, filling the tiny gap between the threads, not only increasing the friction between the threads, but also making the connection between the screw rod and the anti-theft nut more secure. Especially for the wave-shaped guardrail anti-theft bolt, the main installation and disassembly method is to rely on the friction between the cylindrical part and the special sleeve head for disassembly, and the anaerobic glue can increase the disassembly difficulty, and compared with the wave-shaped guardrail anti-theft bolt of the prior art, the anaerobic glue bag in the present embodiment can realize that the anaerobic glue does not need to be pre-coated and pre-assembled into the annular groove, and the filling or production of the anaerobic glue bag is extremely easy to realize in the prior art, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and these drawings without creating any creative labor.

[0024] Figure 1 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure;

[0025] Figure 2 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure; Figure 1 The sectional structural schematic diagram of one embodiment of the present disclosure is shown in the figure;

[0026] Figure 3 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure; Figure 2 The enlarged structural schematic diagram of A in the present disclosure is shown in the figure;

[0027] Figure 4 The structural schematic diagram of the anti-theft nut in one embodiment of the present disclosure is shown in the figure; Figure 1 The structural schematic diagram of the anti-theft nut in one embodiment of the present disclosure is shown in the figure;

[0028] In the figure: gasket-2, through hole-201, protruding part-202, mounting groove-203, give way groove-204, first guide surface-205, arc guide surface-206, anti-theft nut-3, threaded hole-301, hexagonal part-302, cylindrical part-303, annular groove-304, glue guide groove-305, deformation part-306, abutting positioning part-307, second guide surface-308, deformation groove-309, anaerobic glue bag-4, sealing ring-5. DETAILED DESCRIPTION

[0029] The present disclosure will be further described in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.

[0030] In order to make the drawing simple, only the parts related to the disclosure are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0031] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0032] In the present disclosure, unless otherwise specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0034] In addition, in the description of the present application, the terms "first", "second", and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] As shown in Figures 1-4 , which shows a high-strength connecting bolt in an embodiment of the present disclosure, including a screw rod, a gasket 2 has a through hole 201, the screw rod penetrates through the through hole 201, one side of the through hole 201 has a protruding part 202, the protruding part 202 is annular, a theft-proof nut 3 has a threaded hole 301, the screw rod is screwed with the threaded hole 301, the theft-proof nut 3 is pressed on the gasket 2, the theft-proof nut 3 has a hexagonal part 302 and a cylindrical part 303, the hexagonal part 302 and the cylindrical part 303 are arranged in sequence, the cylindrical part 303 is located on the side of the theft-proof nut 3 away from the gasket 2, the end face of the hexagonal part 302 has an annular groove 304, the annular groove 304 is used to accommodate the protruding part 202, the theft-proof nut 3 also has a glue guide groove 305, the annular groove 304 is connected to the threaded hole 301 through the glue guide groove 305, an anaerobic glue bag 4 is arranged in the annular groove 304, the protruding part 202 is configured to abut against and damage the anaerobic glue bag 4 when the theft-proof nut 3 is tightened.

[0036] For example, as shown in Figures 1-3 , the cooperation of the protruding part 202 and the annular groove 304, when the theft-proof nut 3 is tightened, the protruding part 202 will damage the anaerobic glue bag 4, the anaerobic glue flows out and enters the threaded hole 301 through the glue guide groove 305 and the threaded hole 301. After the anaerobic glue solidifies, it will fill the gap between the threads, making the nut and the screw rod tightly bonded together, increasing the difficulty of disassembly. General tools are difficult to easily unscrew the theft-proof nut 3, effectively preventing others from disassembling the bolt at will, which can play a good protective role for some occasions that need to be protected, such as outdoor public facilities, mechanical equipment, etc. The anaerobic glue will form a high-strength adhesive layer after solidification, filling the tiny gap between the threads, not only increasing the friction between the threads, but also making the connection between the screw rod and the theft-proof nut 3 more secure. Especially for the wave-shaped guardrail theft-proof bolt, the main installation and disassembly method is to rely on the friction between the cylindrical part 303 and the special sleeve head to disassemble and assemble, and the anaerobic glue can increase the difficulty of disassembly. Compared with the wave-shaped guardrail theft-proof bolt of the prior art, the anaerobic glue bag 4 in the present embodiment makes the anaerobic glue not need to be pre-coated, but can be pre-assembled into the annular groove 304, and the filling or production of the anaerobic glue bag 4 is easy to realize in the prior art, which will not be described here.

[0037] The presence of the gasket 2 can evenly distribute the pressure of the nut on the connecting components, preventing local stress concentration. At the same time, the cooperation of the protruding part 202 and the annular groove 304 makes the connection between the gasket 2 and the anti-theft nut 3 more compact, further enhancing the stability of the connection. When subjected to external forces, the gasket and the nut can jointly bear the load, improving the reliability of the bolt connection.

[0038] During installation, only the threaded rod needs to be inserted through the through hole 201 of the gasket, and then the anti-theft nut 3 is screwed on the threaded rod. As the anti-theft nut 3 is tightened, the protruding part 202 will automatically break the anaerobic glue bag 4, causing the anaerobic glue to flow out and take effect, without the need for additional gluing or other complex operations. This simple installation method can save installation time and improve work efficiency, and has great advantages for large-scale installation projects.

[0039] In some examples, the glue guide grooves 305 are arranged in several circles.

[0040] For example, as shown in Figure 4 , the several circumferentially arranged glue guide grooves 305 can make the anaerobic glue flowing out of the anaerobic glue bag 4 more evenly distributed to the threaded hole 301 and the threaded part of the threaded rod. Since the glue guide grooves 305 are circumferentially distributed, the anaerobic glue can flow into the thread gap from multiple directions at the same time, avoiding the situation of local insufficient or uneven filling caused by a single glue guide path. Uniform distribution of anaerobic glue helps to improve the consistency of the adhesion effect of the bolt connection. In actual application, whether subjected to tension, pressure or shear force, the threads at each position can have similar adhesion strength, reducing local weak points caused by uneven adhesion. This makes the bolt more evenly disperse stress when bearing load, improving the reliability of the overall connection.

[0041] After the anaerobic glue evenly fills the thread gap, it can greatly enhance the bonding force between the threads. The several circumferentially arranged glue guide grooves 305 ensure sufficient supply of anaerobic glue between the threads, significantly increasing the friction between the threads, thereby improving the tensile and shear strength of the bolt connection. In some high-strength connection engineering, such as heavy machinery, aerospace, etc., this uniform glue guide groove 305 design can ensure that the bolt connection maintains stable strength during long-term use, effectively preventing safety accidents caused by loose connections.

[0042] In some examples, the depth of the annular groove 304 is more than three times the length of the thread pitch of the threaded hole 301.

[0043] For example, as shown in Figure 2 , Figure 4As shown, the annular groove 304 is deep enough to accommodate more than three times the pitch of the thread, and can accommodate sufficient volume of anaerobic adhesive bag 4. When the security nut 3 is tightened, the protruding part 202 needs to penetrate the entire adhesive bag and release the adhesive. The deeper annular groove 304 can prevent the adhesive bag from not being completely broken or the adhesive remaining due to insufficient groove depth, while preventing excessive adhesive from overflowing and contaminating other components. The pitch determines the axial distance between threads, and the ratio of the depth of the annular groove 304 to the pitch directly affects the coverage of the adhesive. The design of three times the pitch ensures that the adhesive can flow into the threaded hole 301 along the glue guide groove 305, and the security nut 3 can be rotated for more than three weeks, improving the uniformity and strength of the thread filling

[0044] In some examples, the glue guide groove 305 is longer than one-third of the length of the threaded hole 301.

[0045] For example, as shown in Figure 4 When the length of the glue guide groove 305 is greater than 1 / 3 of the length of the threaded hole, the anaerobic adhesive can flow into the lower part of the threaded hole along the glue guide groove 305. The circumferentially arranged glue guide grooves 305 in combination with the long glue guide groove enable the adhesive to be evenly distributed in the circumferential and axial directions of the threaded hole 301.

[0046] In some examples, the protruding part 202 has a mounting groove 203, and the high-strength connecting bolt further comprises a sealing ring 5 arranged in the mounting groove 203.

[0047] For example, as shown in Figure 3 The sealing ring 5 is made of fluororubber or silicone rubber, which has high elasticity and chemical resistance. When the security nut 3 is tightened, the sealing ring is compressed, forming a first sealing barrier between the protruding part 202 and the annular groove 304, blocking the axial penetration of liquid and ensuring the aesthetic appearance of the whole.

[0048] In some examples, the gasket 2 has a clearance groove 204 around the through hole 201 and facing the security nut 3. The outer edge of the clearance groove 204 has a first guide surface 205. The security nut 3 has a deformation part 306 and an abutting positioning part 307, which are respectively located on both sides of the annular groove 304. The length of the end surface of the deformation part 306 is longer than the length of the abutting positioning part 307. The end of the deformation part 306 has a second guide surface 308. The deformation part 306 is configured to tighten the security nut 3. After the first guide surface 205 and the second guide surface 308 abut, the second guide surface 308 slides along the first guide surface 205. The deformation part 306 is deformed by the pushing of the first guide surface 205, and the abutting positioning part 307 abuts against the gasket 2.

[0049] For example, as shown in Figure 3As shown, the deformation part 306 is elastically deformed by the first guide surface 205 during the tightening process, and the threads of the anti-theft nut 3 and the threads of the screw rod are wedge-shaped and abut to relax. The abutment positioning part 307 is in contact with the flat surface of the gasket 2 to ensure uniform distribution of the pre-tightening force, and to avoid local stress concentration of the deformation part 306. The elastic deformation of the deformation part 306 further increases the difficulty of disassembling the anti-theft nut 3.

[0050] In some examples, the deformation part 306 is several and arranged in a circle. There is a deformation groove 309 between two adjacent deformation parts 306.

[0051] For example, as shown in the figure, Figure 4 The plurality of circumferentially arranged deformation parts 306 can cooperate with the first guide surface 205 of the gasket 2 in different directions. Due to the circumferential distribution of the deformation part 306, the relative position accuracy requirement of the nut and the gasket 2 during installation is reduced. Even if there is a certain position error in the processing of the gasket 2 or the nut, the plurality of deformation parts 306 can provide sufficient adjustment range to ensure smooth installation. After tightening, the circumferentially arranged plurality of deformation parts 306 will produce a mechanical locking effect with the gasket 2 at multiple positions. The deformation force and friction force generated by each deformation part 306 are superimposed on each other to form a stronger anti-loose resistance.

[0052] In some examples, the deformation groove 309 is not communicated with the glue guide groove 305.

[0053] For example, as shown in the figure, Figure 4 The deformation groove 309 is not communicated with the glue guide groove 305, which can effectively prevent anaerobic glue from leaking out of the deformation groove 309 during the tightening process of the bolt or after solidification. If they are communicated, the anaerobic glue may flow into the deformation groove 309, resulting in insufficient glue entering the thread hole and the screw rod, affecting the bonding strength between the threads. At the same time, the leaked anaerobic glue will also pollute the surrounding parts or environment, increasing the difficulty of cleaning and maintenance. The non-communication design ensures that the anaerobic glue can be concentrated in the thread part to fully fill the thread gap and form a good adhesive layer, improving the reliability of the bolt connection.

[0054] The solidification of anaerobic glue needs to be carried out in an oxygen-free environment. If the deformation groove 309 is communicated with the glue guide groove 305, air may enter the glue guide groove 305 and the thread hole 301 through the deformation groove 309, interfering with the solidification process of the anaerobic glue, resulting in incomplete solidification or performance degradation. The non-communication design can maintain an oxygen-free environment in the thread hole 301 to ensure that the anaerobic glue 301 can be normally solidified and play its due adhesive and anti-loose role.

[0055] In some examples, the end of the protruding part 202 has an arc-shaped guide surface 206, which is used to guide the protruding part 202 into the annular groove 304.

[0056] For example, as shown in the figure,Figure 3 As shown, the arc-shaped guide surface 206 at the end of the protrusion 202 can automatically guide the protrusion 202 into the annular groove 304 accurately during the tightening of the anti-theft nut 3. Compared with a design without the arc-shaped guide surface 206, precise alignment is not required during installation, greatly reducing the time and effort required for centering during installation.

[0057] In some examples, the anaerobic plastic bag 4 is circular or strip-shaped.

[0058] For example, such as Figure 3 As shown, the annular anaerobic bag 4 matches the shape of the annular groove 304. When the anti-theft nut 3 is tightened, the protrusion 202 breaks the anaerobic bag 4, allowing the anaerobic adhesive to flow relatively evenly from the annular groove 304 to the surrounding area and into the threaded joint between the threaded hole 301 and the screw through the adhesive guide groove 305. The annular anaerobic bag has a simple shape, making it easy to place in the annular groove 304 and less prone to displacement or deformation during installation. Moreover, due to its good fit with the annular groove 304, the protrusion 202 can accurately break the anaerobic bag during the tightening of the anti-theft nut 3, allowing the anaerobic adhesive to flow out smoothly, reducing problems caused by improper placement of the bag 4 during installation and improving installation efficiency.

[0059] The strip-shaped anaerobic adhesive bags 4 can be arranged according to actual needs, and can be placed in the corresponding adhesive guide troughs 305. Circular anaerobic adhesive bags 4 would provide excessive anaerobic adhesive, leading to some adhesive overflow or waste. Strip-shaped anaerobic adhesive bags 4, on the other hand, allow for control of the adhesive quantity, preventing excessive adhesive overflow, reducing adhesive waste, and also lowering the workload of cleaning up excess adhesive.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A high-strength connecting bolt, characterized by, The utility model relates to a high-strength connecting bolt, including: Screw rod; Gasket (2), the gasket (2) has through -hole (201), the screw rod is passed through the through -hole (201), the through -hole (201) one side has protruding part (202), the protruding part (202) is annular; Anti -theft nut (3), the anti -theft nut (3) has threaded hole (301), the screw rod is with threaded hole (301) screw thread cooperation, the anti -theft nut (3) is pressed and is established in gasket (2), the anti -theft nut (3) has hexagonal part (302) and cylindrical part (303), hexagonal part (302) and cylindrical part (303) are sequentially arranged, cylindrical part (303) is located the anti -theft nut (3) side away from gasket (2), the end surface of hexagonal part (302) has annular groove (304), the annular groove (304) is used to accommodate protruding part (202), the anti -theft nut (3) still has guide glue groove (305), the annular groove (304) is led to the threaded hole (301) through guide glue groove (305); Anaerobic glue bag (4), anaerobic glue bag (4) is arranged in the annular groove (304), the protruding part (202) is configured, when the anti -theft nut (3) is tightened, the protruding part (202) with anaerobic glue bag (4) abuts and destroys anaerobic glue bag (4).

2. A high strength connecting bolt according to claim 1, characterized in that The guide glue groove (305) is arranged in the circumference.

3. A high strength connecting bolt according to claim 1, wherein The depth of the annular groove (304) is more than three times the length of the screw pitch of the threaded hole (301).

4. A high strength connecting bolt according to claim 1, wherein The length of the guide glue groove (305) is more than one-third of the length of the threaded hole (301).

5. A high strength connecting bolt according to claim 1, wherein The outer wall of the protruding part (202) has a mounting groove (203), and the high-strength connecting bolt further comprises: A sealing ring (5) is arranged in the mounting groove (203).

6. A high strength connecting bolt according to claim 1, wherein The gasket (2) has a clearance groove (204) around the through hole (201) and facing the anti-theft nut (3), and the outer edge of the clearance groove (204) has a first guide surface (205); The anti-theft nut (3) has a deformation part (306) and an abutting positioning part (307), the deformation part (306) and the abutting positioning part (307) are respectively located on both sides of the annular groove (304), the length of the end surface of the deformation part (306) is longer than the length of the abutting positioning part (307), the end of the deformation part (306) has a second guide surface (308), the deformation part (306) is configured to tighten the anti-theft nut (3), after the first guide surface (205) and the second guide surface (308) abut, the second guide surface (308) slides along the first guide surface (205), the deformation part (306) is deformed by the pushing of the first guide surface (205), until the abutting positioning part (307) abuts with the gasket (2).

7. A high strength connecting bolt according to claim 6, wherein The deformation part (306) is arranged in the circumference, and a deformation groove (309) is arranged between two adjacent deformation parts (306).

8. A high strength connecting bolt according to claim 7, wherein The deformation groove (309) is not communicated with the glue guide groove (305).

9. A high strength connecting bolt according to claim 1, wherein An end of the protruding part (202) has an arc-shaped guide surface (206) for guiding the protruding part (202) into the annular groove (304).

10. A high strength connecting bolt according to claim 1, wherein The anaerobic glue bag (4) is circular or strip-shaped.

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