Anti-theft bolt assembly
By designing an anti-theft bolt assembly including a lock shell, a retaining ring, a lock core, a screw, a nut, a sleeve, a disassembly part one and a disassembly part two, the problem of the existing oil storage tank bolt connection lacking the anti-theft function is solved , achieving efficient anti-theft protection for oil storage tanks.
Patent Information
- Application Number
- CN202421056853.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The bolt connections of existing oil storage tanks lack the anti-theft function and are prone to oil stolen. Especially in remote oil well environments, ordinary bolts cannot effectively prevent theft.
An anti-theft bolt assembly is designed, including a lock shell, a retaining ring, a lock core, a screw, a nut, a sleeve, a disassembly part one and a disassembly part two. Through the limit design of the lock core, the lock shell and the retaining ring, Combined with the special structure of the disassembly and assembly parts, efficient anti-theft protection of the lock cylinder and nut is achieved.
The anti-theft bolt assembly effectively prevents unrelated personnel from easily twisting the lock core and nut, enhances the safety of the oil storage tank, and avoids theft.
Smart Images
Figure CN222351125U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fasteners, and more specifically to an anti-theft bolt assembly. Background Art
[0002] In the process of oil extraction, the oil storage tanks at the metering station are essential equipment for crude oil storage. In remote oil wells, since there is no transportation pipeline for the crude oil extracted by the pumping unit, the crude oil needs to be temporarily stored in the oil storage tanks for subsequent unified transportation and recovery. For the above-mentioned remote oil wells, there are few construction workers and inspection personnel, and the oil storage tanks with imperfect monitoring equipment are at risk of oil theft.
[0003] At present, the large flange connection method of DN500 on the top of the oil storage tank is ordinary bolt connection. The bolts can be easily removed with an ordinary wrench on site. Due to the versatility and standardization of ordinary bolts, ordinary bolts have no anti-theft effect. They only play a connecting role. Therefore, oil storage tanks in remote environments are prone to the risk of oil theft. Even if the bolts are sealed, it can only serve as a reminder, not an anti-theft effect.
[0004] Therefore, how to provide an anti-theft bolt assembly that can overcome the above problems is a problem that those skilled in the art urgently need to solve. Utility Model Content
[0005] In view of this, the utility model provides an anti-theft bolt assembly.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] An anti-theft bolt assembly comprises: a lock shell, a retaining ring, a lock core, a screw, a nut, a sleeve, a disassembly and assembly part 1 and a disassembly and assembly part 2, the lock shell being tubular and having one end closed, the open end of the lock shell being coaxially blocked with the retaining ring, a clearance hole 1 being centrally opened at the closed end of the lock shell, and a plurality of through holes being sequentially opened circumferentially on the side wall of the lock shell; the lock core being tubular and coaxially arranged in the lock shell, the inner side wall of the lock core being provided with a thread, the lock core being able to abut against the inner wall of the closed end of the lock shell, and a plurality of clamping holes being uniformly opened circumferentially on the outer side wall of the lock core; one end of the screw is screwed with the lock core thread after passing through the clearance hole 1, and the other end of the screw is coaxially fixed with the nut; the retaining ring The screw can be arranged on the inner side of the ring, and a plurality of snap-in notches are opened in sequence circumferentially on the side wall of the nut; one end of the sleeve is closed and a second clearance hole is opened in the center of the closed end, the screw is arranged on the inner side of the second clearance hole, the nut is arranged in the sleeve, and the nut can abut against the inner wall of the closed end of the sleeve; the disassembly component one has a plurality of insertion rods adapted to the snap-in holes, one end of the insertion rod can be inserted into the snap-in holes after passing through the first clearance hole, and a plurality of the insertion rods can be respectively inserted into the plurality of the snap-in holes; the disassembly component two has a plurality of levers adapted to the snap-in notches, and the plurality of levers can extend into the sleeve and be respectively inserted in the plurality of the snap-in notches.
[0008] Through the above technical scheme, it can be known that compared with the prior art, the utility model discloses an anti-theft bolt assembly. In the utility model, the lock core is limited in a cavity defined by the lock shell and the retaining ring. The outer wall of the lock core is evenly provided with a plurality of snap-in holes in the circumferential direction. The outer wall of the lock shell is evenly provided with a plurality of through holes in the circumferential direction. Only when the through holes and the snap-in holes are aligned, the insertion rod in the disassembly and assembly part can be inserted into the snap-in holes. Rotating the lock shell alone will not drive the lock core to rotate, and the lock core and the lock shell will slide relative to each other. The lock shell can protect the snap-in holes to prevent unauthorized persons from easily opening the lock core. The cross-sectional shape and size of the snap-in hole can be easily obtained, so as to imitate the disassembly component one; the nut is limited in the sleeve, and a snap-in notch is provided on the nut, and the disassembly component two has a lever adapted to the snap-in notch, and the nut can only be driven to rotate by inserting the lever into the snap-in notch. Due to the existence of the sleeve, the sleeve can ensure that the shape and size of the snap-in notch will not be known to irrelevant personnel, thereby preventing the disassembly component two from being imitated; when disassembling and assembling the lock core and the screw in this application, the disassembly component one and the disassembly component two must be used at the same time, so that the anti-theft bolt assembly has a good anti-theft effect.
[0009] Preferably, the inner diameter of the retaining ring is larger than the outer diameter of the screw, and the distance from the end surface of the retaining ring close to the first clearance hole to the inner wall of the closed end of the lock housing is larger than the length of the lock core. The screw can be reliably arranged inside the retaining ring, and the lock core and the lock housing can rotate relative to each other only when the lock housing is rotated, that is, the lock core slips in the lock housing.
[0010] Preferably, a rectangular groove is formed on the end wall of the opening end of the lock housing, which facilitates the subsequent rotation of the lock housing using a tool.
[0011] Preferably, a limiting ring is coaxially formed integrally at one end of the lock core close to the first clearance hole, the screw is coaxially arranged inside the limiting ring, and the limiting ring is coaxially embedded in the first clearance hole. The lock core and the lock housing can be coaxially arranged.
[0012] Preferably, a limiting column is coaxially integrally formed at one end of the nut close to the second clearance hole, the limiting column is coaxially fixed with the screw rod, and the limiting column is coaxially embedded in the second clearance hole. The nut and the sleeve can be coaxially arranged.
[0013] Preferably, the disassembly component 1 is further provided with a mounting tube, a connecting tube 1 and an adjusting bolt. One end of the mounting tube is closed and the outer wall of the closed end is coaxially fixed with one end of the connecting tube 1. The connecting tube 1 can be coaxially fixed with the rotation output end of the external rotating mechanism. A plurality of threaded holes are evenly arranged circumferentially on the side wall of the mounting tube. A plurality of adjusting bolts are screwed into each of the threaded holes. The axis of the adjusting bolt is coplanar with the center line of the mounting tube. The plug rod is coaxially fixed to one end of the adjusting bolt. The plurality of plug rods are arranged inside the mounting tube. The mounting tube can be coaxially sleeved on the outside of the lock housing. The disassembly component 1 can reliably drive the lock core to rotate.
[0014] Preferably, the second disassembly component is further provided with a second connecting tube, one end of the plurality of levers is fixed to one end of the second connecting tube, the plurality of levers are evenly arranged along the circumference of the second connecting tube, and the second connecting tube can be coaxially fixed to the rotation output end of the external rotating mechanism. The second disassembly component can reliably drive the nut to rotate. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0016] Figure 1 The invention is a cross-sectional schematic diagram of the connection between a lock housing, a retaining ring, a lock core, a screw rod, a nut and a sleeve in an anti-theft bolt assembly;
[0017] Figure 2 It is an axonometric view of a lock cylinder in an anti-theft bolt assembly;
[0018] Figure 3 It is an axonometric view of a screw rod and a nut in an anti-theft bolt assembly;
[0019] Figure 4 It is a cross-sectional view of a disassembly and assembly part 1 in an anti-theft bolt assembly;
[0020] Figure 5 It is an axonometric view of disassembly and assembly part two in an anti-theft bolt assembly.
[0021] In the figure:
[0022] 1 is a lock housing, 10 is a clearance hole 1, 11 is a through hole, 12 is a rectangular groove, 2 is a retaining ring, 3 is a lock core, 30 is a clamping hole, 31 is a limiting ring, 4 is a screw, 5 is a nut, 50 is a clamping notch, 51 is a limiting column, 6 is a sleeve, 60 is a clearance hole 2, 7 is a disassembly component 1, 70 is an insert rod, 71 is a mounting tube, 72 is a connecting tube 1, 73 is an adjusting bolt, 8 is a disassembly component 2, 80 is a lever, and 81 is a connecting tube 2. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0024] The utility model discloses an anti-theft bolt assembly. In the utility model, the lock core 3 is limited in the cavity defined by the lock shell 1 and the retaining ring 2. The outer wall of the lock core 3 is uniformly provided with a plurality of snap-in holes 30 in the circumferential direction. The outer wall of the lock shell 1 is uniformly provided with a plurality of through holes 11 in the circumferential direction. Only when the through holes 11 and the snap-in holes 30 are aligned, the insertion rod 70 in the disassembly and assembly part 1 7 can be inserted into the snap-in holes 30; only when the plurality of insertion rods 70 are respectively inserted in the plurality of snap-in holes 30, the rotation of the disassembly and assembly part 1 7 can drive the lock core 3 to rotate. When there is no disassembly and assembly part 1 7, the lock core 3 cannot be easily twisted by other tools, and the rotation of the lock shell 1 alone will not drive the lock core 3 to rotate, and the lock core 3 and the lock shell 1 will slide relative to each other; the lock shell 1 can protect the lock core 3 and prevent the lock core 3 from being maliciously damaged. At the same time, the lock shell 1 can also protect the snap-in holes 30 to prevent irrelevant personnel from easily obtaining the cross-sectional shape and size of the snap-in holes 30, thereby imitating the disassembly and assembly part 1 7;
[0025] The nut 5 is limited in the sleeve 6. The nut 5 is provided with a snap-fit notch 50. The second disassembly component 8 has a lever 80 adapted to the snap-fit notch 50. The nut 5 can be driven to rotate only when the lever 80 is correspondingly inserted into the snap-fit notch 50, that is, the screw 4 can be driven to rotate only by the second disassembly component 8. Due to the existence of the sleeve 6, the sleeve 6 can ensure that the shape and size of the snap-fit notch 50 will not be known by irrelevant personnel, preventing the second disassembly component 8 from being imitated. At the same time, the sleeve 6 can also protect the nut 5 and the snap-fit notch 50 to prevent the two from being damaged.
[0026] When disassembling the lock core 3 and the screw rod 4 in the present application, the disassembly component 1 7 and the disassembly component 2 8 must be used simultaneously, otherwise the lock core 3 and the screw rod 4 cannot be disassembled smoothly; in summary, the anti-theft bolt assembly has a good anti-theft effect.
[0027] Example
[0028] See attached Figure 1-5 The utility model is a schematic diagram of the overall and partial structures of an embodiment of the utility model. The utility model specifically discloses an anti-theft bolt assembly, including: a lock housing 1, a retaining ring 2, a lock core 3, a screw rod 4, a nut 5, a sleeve 6, a disassembly component 1 7 and a disassembly component 2 8;
[0029] The lock housing 1 is tubular and one end of the lock housing 1 is closed. The open end of the lock housing 1 is coaxially blocked with a retaining ring 2. The retaining ring 2 and the lock housing 1 are fixed by welding. The retaining ring 2 can limit the lock core 3 in the lock housing 1 to prevent the lock core 3 or the lock housing 1 from being lost. A circular clearance hole 10 is centrally opened at the closed end of the lock housing 1, and a plurality of through holes 11 are evenly opened on the side wall of the lock housing 1 in a circumferential direction.
[0030] The lock core 3 is tubular and coaxially arranged in the lock housing 1. The inner side wall of the lock core 3 is provided with a thread. The lock core 3 can abut against the inner wall of the closed end of the lock housing 1. A plurality of snap-in holes 30 are evenly opened circumferentially on the side wall of the lock core 3. In this embodiment, the snap-in holes 30 are long strips, and the hole length direction of the snap-in holes 30 is arranged along the circumference of the lock core 3. The hole cross-sectional area of the through hole 11 is greater than or equal to the hole cross-sectional area of the snap-in holes 30, so as to ensure that the insertion rod 70 can pass through the through hole 11 and be inserted into the snap-in holes 30.
[0031] One end of the screw rod 4 with a smaller pitch passes through the clearance hole 10 coaxially and is screwed with the lock core 3, and the other end of the screw rod 4 is coaxially fixed with a nut 5; the screw rod 4 can be arranged inside the retaining ring 2, and a plurality of clamping notches 50 are sequentially opened on the side wall of the nut 5 in a circumferential direction;
[0032] One end of the sleeve 6 is closed and a circular second clearance hole 60 is opened in the center of the closed end. A screw 4 is coaxially arranged inside the second clearance hole 60. The nut 5 is arranged in the sleeve 6. The nut 5 can abut against the inner wall of the closed end of the sleeve 6. The sleeve 6 is long enough to ensure that the nut 5 is completely arranged in the sleeve 6.
[0033] The disassembly and assembly part 1 7 has a plurality of insertion rods 70 that are adapted to the cross-sectional shape of the clamping hole 30. The insertion rods 70 are long enough to ensure that one end of the insertion rods 70 can be inserted into the clamping hole 30 after passing through the clearance hole 10. A plurality of insertion rods 70 can be inserted into each of the plurality of clamping holes 30.
[0034] When the plurality of insertion rods 70 are respectively inserted into the plurality of clamping holes 30, the disassembling and assembling part 1 7 is rotated at this time, and the disassembling and assembling part 1 7 can drive the lock core 3 to rotate; the hole depth of the clamping hole 30 is shallow and the wall thickness of the lock shell 1 is thin. At the same time, the clamping hole 30 is long and has a plurality of them. Even if an unrelated person inserts a thinner rod-shaped component into the clamping hole 30, it is impossible to easily twist the lock core 3; the lock shell 1 has three functions: the first is that when an unrelated person uses a tool to rotate the lock shell 1, the lock core 3 does not move, and the lock core 3 and the lock shell 1 slide relative to each other, thereby preventing the lock core 3 from being easily screwed off the screw rod 4; the second is to protect the lock core 3 and prevent the lock core 3 from being maliciously damaged; the third function is to protect the clamping hole 30 and prevent unrelated persons from easily obtaining the cross-sectional shape and size of the clamping hole 30, thereby imitating the disassembling and assembling part 1 7;
[0035] The second disassembly member 8 has a plurality of levers 80 that are adapted to the cross-sectional shape of the clamping notch 50. The levers 80 are long enough to ensure that the plurality of levers 80 can extend into the sleeve 6 and are respectively inserted into the plurality of clamping notches 50.
[0036] When the plurality of levers 80 are respectively inserted into the plurality of clamping notches 50, the disassembling member 2 8 is rotated, and the disassembling member 2 8 can drive the nut 5 to rotate; the length of the sleeve 6 is long enough to ensure that the shape and size of the clamping notch 50 will not be known by irrelevant personnel, and to prevent the disassembling member 2 8 from being copied. The sleeve 6 is mainly used to protect the nut 5 and the clamping notch 50;
[0037] The lock core 3 and the screw rod 4 can only be separated when the disassembly component 1 7 and the disassembly component 2 8 are used at the same time. Using the disassembly component 1 7 alone will cause the screw rod 4 to spin and slip, and using the disassembly component 2 8 alone will cause the lock core 3 to spin and slip.
[0038] To be more specific, the inner ring diameter of the retaining ring 2 is larger than the outer diameter of the screw 4, ensuring that the screw 4 can pass through the inside of the retaining ring 2; the distance from one end face of the retaining ring 2 close to the clearance hole 10 to the inner wall of the closed end of the lock shell 1 is larger than the length of the lock core 3; ensuring that when the lock shell 1 is simply rotated, relative sliding will occur between the lock core 3 and the lock shell 1.
[0039] More specifically, a rectangular groove 12 is formed on the end wall of the open end of the lock housing 1; one end of a sharp tool is embedded in the rectangular groove 12, and the lock housing 1 can be rotated by impacting the sharp tool in a certain direction. This design facilitates the disassembly and assembly of the lock core 3.
[0040] Part 1 and part 2 to be fixed are arranged closely together, part 1 is provided with a connecting hole 1, part 2 is provided with a connecting hole 2, and screws 4 are passed through the inner sides of the connecting hole 1 and the connecting hole 2;
[0041] A limiting ring 31 is coaxially formed in one piece at one end of the lock core 3 near the clearance hole 10, a screw 4 is coaxially arranged inside the limiting ring 31, and the limiting ring 31 is embedded in the clearance hole 10; the limiting ring 31 can ensure that the lock core 3 and the lock housing 1 are coaxially arranged;
[0042] A limiting column 51 is coaxially integrally formed at one end of the nut 5 close to the second clearance hole 60. The limiting column 51 is coaxially fixed to the screw rod 4 and is coaxially embedded in the second clearance hole 60. The limiting column 51 ensures that the nut 5 and the sleeve 6 can be coaxially arranged. The lock housing 1 and the sleeve 6 will clamp part one and part two.
[0043] To be more specific, the disassembly and assembly part 7 is also provided with a mounting tube 71, a connecting tube 72 and an adjusting bolt 73. One end of the mounting tube 71 is closed and the outer wall of the closed end is coaxially fixed with one end of the connecting tube 72. The connecting tube 72 can be coaxially fixed with the rotation output end of the external rotating mechanism. A plurality of threaded holes are evenly arranged circumferentially on the side wall of the mounting tube 71. A plurality of adjusting bolts 73 are screwed in each threaded hole. The axis of the adjusting bolt 73 is coplanar with the center line of the mounting tube 71. An insert rod 70 is coaxially fixed to one end of the adjusting bolt 73. A plurality of insert rods 70 are arranged on the inner side of the mounting tube 71. By rotating the adjusting bolt 73, the insert rod 70 can be moved. The outer side of the lock housing 1 can be coaxially sleeved with a mounting tube 71.
[0044] Specifically, the disassembly and assembly part 2 8 is also provided with a connecting tube 2 81, one end of a plurality of levers 80 is fixed to one end of the connecting tube 2 81, and the plurality of levers 80 are evenly arranged along the circumference of the connecting tube 2 81, and the connecting tube 2 81 can be coaxially fixed with the rotating output end of the external rotating mechanism; the connecting tube 2 81 is coaxially provided with an annular step surface, and when one end of the connecting tube 2 81 provided with the lever 80 is inserted into the sleeve 6, and the lever 80 is successfully inserted into the clamping notch 50, the step surface abuts against the end wall of the opening end of the sleeve 6; the side wall of the connecting tube 2 81 can be provided with a mounting hole, and the hole center of the mounting hole is perpendicular to the tube center line of the connecting tube 2 81, and the lever can be inserted into the mounting hole, and the connecting tube 2 81 can be rotated by manually pulling the lever. The external rotating mechanism referred to here can be an electric wrench or an ordinary human wrench.
[0045] When the anti-theft bolt assembly is in use:
[0046] In the first step, the adjusting bolt 73 is rotated forwardly, and the insertion rod 70 moves in a direction away from the center line of the mounting tube 71 until the mounting tube 71 can be sleeved on the lock housing 1. Then, the mounting tube 71 is sleeved on the lock housing 1, and the insertion rod 70 is aligned with the through hole 11. Finally, the adjusting bolt 73 is rotated in the reverse direction, so that the insertion rod 70 is inserted into the clamping hole 30.
[0047] In the second step, the nut 5 is first installed in the sleeve 6, and then the lever 80 in the second disassembly component 8 is inserted into the clamping notch 50, and finally the free end of the screw rod 4 equipped with the sleeve 6 is passed through the multiple parts to be fixed in sequence until the free end of the screw rod 4 is screwed to the lock core 3;
[0048] In the third step, disassembly part 1 7 remains stationary and disassembly part 2 8 is rotated; or disassembly part 1 7 is rotated and disassembly part 2 8 remains stationary; thereby completing the pre-tightening of the parts to be fixed by the nut 5 and the lock core 3; after completing the above process, disassembly part 1 7 and disassembly part 2 8 are disassembled.
[0049] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0050] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An anti-theft bolt assembly, characterized in that: include: A lock housing (1), a retaining ring (2), a lock core (3), a screw (4), a nut (5), a sleeve (6), a disassembly component (7) and a disassembly component (8), wherein the lock housing (1) is tubular and one end of which is closed, the open end of the lock housing (1) is coaxially sealed with the retaining ring (2), a clearance hole (10) is centrally provided at the closed end of the lock housing (1), and a plurality of through holes (11) are sequentially provided on the side wall of the lock housing (1) in a circumferential direction; the lock core (3) is tubular and one end of which is coaxially sealed with the retaining ring (2), a clearance hole (10) is centrally provided at the closed end of the lock housing (1), and a plurality of through holes (11) are sequentially provided on the side wall of the lock housing (1); The shaft is arranged in the lock housing (1); the inner wall of the lock core (3) is provided with a thread; the lock core (3) can abut against the inner wall of the closed end of the lock housing (1); a plurality of snap-in holes (30) are evenly opened circumferentially on the outer wall of the lock core (3); one end of the screw rod (4) is screwed with the lock core (3) after passing through the clearance hole (10); the other end of the screw rod (4) is coaxially fixed with the nut (5); the inner side of the retaining ring (2) can be provided with a The screw rod (4) is provided, and a plurality of snap-fit notches (50) are sequentially opened on the side wall of the nut (5) in a circumferential direction; one end of the sleeve (6) is closed and a second clearance hole (60) is opened in the center of the closed end, the screw rod (4) is arranged inside the second clearance hole (60), the nut (5) is arranged in the sleeve (6), and the nut (5) can abut against the inner wall of the closed end of the sleeve (6); the disassembly component (7) has a plurality of snap-fit notches (30) which are connected to the snap-fit hole (31) and the nut (5) is connected to the inner wall of the closed end of the sleeve (6); the disassembly component (7) has a plurality of snap-fit notches (31) which are connected to the inner wall of the closed end of the sleeve (6) and the nut (5) is ... 0) an insert rod (70) adapted to the sleeve (6), one end of the insert rod (70) being insertable in the snap-in hole (30) after passing through the first clearance hole (10), and a plurality of the insert rods (70) being insertable in each of the plurality of snap-in holes (30); the second disassembly and assembly part (8) having a plurality of levers (80) adapted to the snap-in notches (50), the plurality of levers (80) being extendable into the sleeve (6) and being insertable in each of the plurality of snap-in notches (50).
2. The anti-theft bolt assembly according to claim 1, characterized in that: The inner diameter of the retaining ring (2) is greater than the outer diameter of the screw (4), and the distance from an end surface of the retaining ring (2) close to the clearance hole (10) to the inner wall of the closed end of the lock housing (1) is greater than the length of the lock core (3).
3. The anti-theft bolt assembly according to claim 1, characterized in that: A rectangular groove (12) is formed on the end wall of the opening end of the lock housing (1).
4. The anti-theft bolt assembly according to claim 1, characterized in that: A limiting ring (31) is coaxially integrally formed at one end of the lock core (3) close to the first clearance hole (10), the screw rod (4) is coaxially arranged inside the limiting ring (31), and the limiting ring (31) is coaxially embedded in the first clearance hole (10).
5. The anti-theft bolt assembly according to claim 1, characterized in that: A limiting column (51) is coaxially integrally formed at one end of the nut (5) close to the second clearance hole (60); the limiting column (51) is coaxially fixed to the screw rod (4); and the limiting column (51) is coaxially embedded in the second clearance hole (60).
6. The anti-theft bolt assembly according to claim 1, characterized in that: The disassembly and assembly part (7) is also provided with a mounting tube (71), a connecting tube (72) and an adjusting bolt (73). One end of the mounting tube (71) is closed and the outer wall of the closed end is coaxially fixed with one end of the connecting tube (72). The connecting tube (72) can be coaxially fixed with the rotation output end of the external rotating mechanism. A plurality of threaded holes are evenly arranged circumferentially on the side wall of the mounting tube (71). A plurality of adjusting bolts (73) are screwed into each of the threaded holes. The axis of the adjusting bolt (73) is coplanar with the center line of the mounting tube (71). One end of the adjusting bolt (73) is coaxially fixed with the insert rod (70). The plurality of insert rods (70) are arranged on the inner side of the mounting tube (71). The outer side of the lock housing (1) can be coaxially sleeved with the mounting tube (71).
7. The anti-theft bolt assembly according to claim 1, characterized in that: The second disassembly and assembly component (8) is also provided with a second connecting tube (81), one end of a plurality of the shifting rods (80) is fixed to one end of the second connecting tube (81), the plurality of the shifting rods (80) are evenly arranged along the circumference of the second connecting tube (81), and the second connecting tube (81) can be coaxially fixed with the rotation output end of the external rotating mechanism.