Anti-theft bolt

Abstract

The utility model relates to the technical field of bolts, and discloses an anti-theft bolt. The bolt is composed of a screw, a nut, an anti-theft head and an anti-theft insertion block, the anti-theft head is welded to the top of the screw and provided with a connecting groove and a second insertion hole, the connecting groove is sleeved with a connecting ring, a first insertion hole is formed in a connecting sleeve on the connecting ring, and the nut is welded to the top of the connecting sleeve. A fixed plate, a sliding sleeve, an insertion rod, a spring and the like are arranged in the anti-theft head, and an anti-theft insertion block is installed in a special-shaped insertion hole in the top. The nut indicating groove and the anti-theft head indicating point assist in installation, the first inserting hole and the second inserting hole are aligned, the sliding block can be pushed by inserting the anti-theft inserting block, the inserting rod penetrates through the two inserting holes, the nut and the anti-theft head are fixed, and therefore the nut can drive the screw to rotate, and when the anti-theft inserting block is taken out, the nut can be prevented from being illegally rotated, and anti-theft is achieved. Compared with the prior art, the anti-theft bolt is ingenious in structural design, good in anti-theft performance, convenient and fast to install and capable of effectively preventing the bolt from being stolen, the stability of the device is enhanced, and good application prospects are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt technical field, concretely is a kind of anti-theft bolt. BACKGROUND

[0002] Bolt is a kind of fastener frequently used in modern industry, generally will cooperate nut together, it is composed of screw rod and nut, is driven screw rod rotation into after through nut to this two objects are fastened by nut.

[0003] In prior art, after the object is fastened by screw rod, some unscrupulous personnel will drive screw rod and object apart by rotating nut, so that the phenomenon of theft of screw rod occurs, which not only makes the stability of the device worse, but also reduces the overall safety of the bolt. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an anti-theft bolt to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an anti-theft bolt, comprising a screw rod, a nut, an anti-theft head and an anti-theft plug, the top of the screw rod is welded with the anti-theft head, the surface of the anti-theft head is symmetrically provided with a second insertion hole, the bottom of the surface of the anti-theft head is provided with a connecting groove, the connecting groove is movably sleeved with a connecting ring, the top of the connecting ring is welded with a connecting sleeve, the surface of the connecting sleeve is symmetrically provided with a first insertion hole, the top of the connecting sleeve is welded with the nut above the anti-theft head, the top of the nut is provided with a slot corresponding to the anti-theft head, the bottom of the inner cavity of the anti-theft head is symmetrically welded with a fixed plate, the surface of the fixed plate is welded with a sliding sleeve, the sliding sleeve is movably sleeved with a plug rod, the surface of the plug rod is welded with a baffle, the baffle and the surface of the fixed plate are movably sleeved with a spring around the plug rod, one end of the plug rod is welded with a sliding block, the top surface of the anti-theft head is provided with a special-shaped insertion hole, and the anti-theft plug is movably installed in the special-shaped insertion hole.

[0006] Preferably, the top surface of the nut is provided with an indicating groove, the indicating groove is located at the first insertion hole, the top of the anti-theft head is provided with an indicating point, and the indicating point corresponds to the position of the second insertion hole, so as to rotate the nut, make the first insertion hole correspond to the position of the second insertion hole, and facilitate the plug rod to be inserted into the first insertion hole and the second insertion hole.

[0007] Preferably, the first insertion hole and the second insertion hole correspond in shape, size and orientation, and the one end of the plug rod penetrates the second insertion hole and the first insertion hole in sequence, so as to facilitate the nut and the anti-theft head to be fixedly connected, that is, the nut can drive the screw rod to rotate.

[0008] Preferably, a sliding groove is formed in the middle of the bottom of the inner cavity of the anti-theft head, the bottom of the sliding block is embedded and slidably connected with the sliding groove, so that the sliding block moves more stably.

[0009] Preferably, the top surface of the sliding block is inclined, and the higher side of the top of the sliding block faces the insertion rod, one side of the bottom of the sliding block is provided with a clamping groove, and the surface of the clamping groove is inclined, and the bottom of the two side faces of the anti-theft plug is welded with a clamping block, and the clamping block is connected with the clamping groove in a clamping manner, so that in use, the anti-theft plug is inserted between the two sliding blocks, the insertion rod is inserted into the first insertion hole and the second insertion hole, and the fixing between the nut and the anti-theft head is completed.

[0010] Preferably, the cross-sectional shape of the anti-theft plug matches the shape of the special-shaped insertion hole, so that the anti-theft plug is fixed between the two sliding blocks.

[0011] Compared with the prior art, the anti-theft bolt has the advantages that: the anti-theft performance is enhanced; after installation, the anti-theft plug is inserted into the special-shaped insertion hole, the clamping block at the bottom is clamped with the clamping groove of the sliding block, the insertion rod is sequentially inserted through the second insertion hole and the first insertion hole, and the nut and the anti-theft head are firmly fixed. This design makes it difficult for illegal personnel to rotate the nut with conventional tools to disassemble the bolt, greatly increases the anti-theft safety of the bolt, reduces the risk of theft, and ensures the stability of the device fastened by the bolt.

[0012] Convenient installation operation: the indication groove at the top of the nut points to the first insertion hole, and the indication point at the top of the anti-theft head corresponds to the position of the second insertion hole. During installation, the user can quickly rotate the nut according to the indication groove and the indication point, so that the first insertion hole and the second insertion hole correspond in position, and the insertion rod can be smoothly inserted. This design simplifies the installation process, improves the installation efficiency, and even ordinary personnel can easily complete the installation operation, reducing the installation difficulty and time cost.

[0013] Ensure connection stability: the first insertion hole and the second insertion hole correspond in shape, size and orientation, and the insertion rod penetrates through the two insertion holes, realizing stable connection of the nut and the anti-theft head. During use, this connection mode can ensure stable rotation of the nut with the screw rod, avoiding problems such as loosening and displacement caused by unstable connection, ensuring the stability and reliability of the bolt when fastening objects, and prolonging the service life of the bolt and related devices.

[0014] Optimize the stability of the movement of the components: the sliding groove at the bottom of the inner cavity of the anti-theft head is embedded and slidably connected with the bottom of the sliding block, so that the sliding block moves more stably. When the anti-theft plug is inserted to drive the sliding block to move, the sliding groove can effectively limit the movement trajectory of the sliding block, preventing the sliding block from shaking or deviating, ensuring that the insertion rod is accurately inserted into the insertion hole, and further improving the stability and reliability of the overall structure of the bolt. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is the anti-theft head structure schematic view of the utility model;

[0017] Figure 3 It is the anti-theft head internal structure schematic view of the utility model;

[0018] Figure 4 It is the card block structure schematic view of the utility model.

[0019] In the drawing: 1, screw rod;2, nut;3, anti-theft head;4, connecting sleeve;5, connecting ring;6, first jack;7, slot;8, indicating groove;9, anti-theft plug block;10, handle;11, second jack;12, special-shaped jack;13, connecting groove;14, fixed plate;15, plug rod;16, baffle;17, spring;18, limit sliding slot;19, sliding block;20, sliding sleeve;21, card slot;22, card block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "vertical", "upper", "lower", "horizontal" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "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, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Please refer to Figures 1-3The utility model provides a technical scheme: a theftproof bolt, including screw rod 1, screw cap 2, theftproof head 3 and theftproof plug 9, the top welding of screw rod 1 has theftproof head 3, the surface of theftproof head 3 is opened the second jack 11 in symmetry, the surface bottom of theftproof head 3 is opened the connecting groove 13, the connecting ring 5 is movably sleeved in the connecting groove 13, the top welding of connecting ring 5 has connecting sleeve 4, the surface of connecting sleeve 4 is opened the first jack 6 in symmetry, the top welding of connecting sleeve 4 has screw cap 2 on the top of theftproof head 4, the top of screw cap 2 is opened the slot 7 on the corresponding place of theftproof head 3, the bottom of the inner chamber of theftproof head 3 is welded the fixed plate 14 in symmetry, the surface welding of fixed plate 14 has sliding sleeve 20, the sliding sleeve of sliding sleeve 20 is sleeved with plug 15, the surface welding of plug 15 has baffle 16, the periphery of plug 15 is sleeved with spring 17 between the surface of baffle 16 and fixed plate 14, the one end welding of plug 15 has sliding block 19, the top surface of theftproof head 3 is opened the special-shaped jack 12, and the theftproof plug is slidably installed in the special-shaped jack 12.

[0024] Further, the top surface of the screw cap 2 is provided with an indication groove 8, the indication groove 8 is positioned to point to the first jack 6, the top of the theftproof head 3 is provided with an indication point, and the indication point corresponds to the position of the second jack 11, which facilitates the rotation of the screw cap 2, so that the first jack 6 corresponds to the position of the second jack 11, and facilitates the subsequent insertion of the plug 15 into the first jack 6 and the second jack 11.

[0025] Further, the first jack 6 and the second jack 11 correspond in shape, size and orientation, and the one end of the plug 15 penetrates the second jack 11 and the first jack 6 in sequence, which facilitates the fixed connection of the screw cap 2 and the theftproof head 3, that is, the screw rod 1 can be rotated by the screw cap 2.

[0026] Further, the inner chamber of the theftproof head 3 is provided with a sliding groove 18 in the middle of the bottom, and the bottom of the sliding block 19 is embedded and slidably connected with the sliding groove 18, so that the movement of the sliding block 19 is more stable.

[0027] Further, the top surface of the sliding block 19 is inclined, and the higher side of the top of the sliding block 19 faces the plug 15, and the bottom side of the sliding block 19 is provided with a clamping groove 21, and the surface of the clamping groove 21 is inclined, and the two side surfaces of the theftproof plug 9 are welded with clamping blocks 22, and the clamping blocks 22 are clamped and connected with the clamping grooves 21, so that when in use, the theftproof plug 9 is inserted between the two sliding blocks 19, and the plug 15 is inserted into the first jack 6 and the second jack 11, and the fixed connection between the screw cap 2 and the theftproof head 3 is completed.

[0028] Further, the cross-sectional shape of the theftproof plug 9 matches the shape of the special-shaped jack 12, which facilitates the fixation of the theftproof plug 9 between the two sliding blocks 19.

[0029] Working principle: when installing the anti-theft bolt, first screw the screw rod 1 into the object to be fastened. Since the top surface of the nut 2 is provided with the indicating groove 8 and the anti-theft head 3 is provided with the indicating point corresponding to the position of the second insertion hole 11, the installer can observe the indicating groove 8 and the indicating point, rotate the nut 2, and align the first insertion hole 6 on the connecting sleeve 4 with the second insertion hole 11 on the anti-theft head 3.

[0030] At this time, the insertion rod 15 in the sliding sleeve 20 can slide on the fixed plate 14 at the bottom of the inner cavity of the anti-theft head 3, and the baffle 16 welded on the surface of the insertion rod 15 and the spring 17 sleeved between the baffle 16 and the fixed plate 14 are in a natural state. When the anti-theft plug 9 is inserted into the special-shaped insertion hole 12 at the top of the anti-theft head 3, since the clamping blocks 22 welded on the bottom of the two side surfaces of the anti-theft plug 9 are clamped with the clamping grooves 21 on one side of the bottom of the sliding block 19, and the top surface of the sliding block 19 is inclined, and the higher side faces the insertion rod 15, with the insertion of the anti-theft plug 9, it will push the sliding block 19 to slide along the sliding groove 18 at the bottom of the inner cavity of the anti-theft head 3.

[0031] The sliding of the sliding block 19 drives the insertion rod 15 to move, and the insertion rod 15 penetrates the second insertion hole 11 and the first insertion hole 6 in sequence at one end, so as to fixedly connect the nut 2 and the anti-theft head 3 together. In this way, the nut 2 cannot be rotated at will, and further drives the screw rod 1 to separate from the object, so as to realize the anti-theft function and complete the disassembly.

[0032] When the bolt needs to be prevented from being stolen, only the tool specially matched with the shape of the special-shaped insertion hole 12 is used to insert the special-shaped insertion hole 12 and accurately act on the anti-theft plug 9, that is, the anti-theft plug 9 is pulled out of the special-shaped insertion hole 12, the clamping of the clamping blocks 22 and the clamping grooves 21 is released, the insertion rod 15 retreats to the original position under the elastic force of the spring 17, the fixation between the nut 2 and the anti-theft head 3 is released, the nut 2 is rotated at will, the screw rod 1 cannot be screwed out of the object, and the anti-theft function is realized.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A theft-proof bolt comprising a screw rod (1), a screw cap (2), a theft-proof head (3) and a theft-proof plug (9), characterized in that: The anti-theft head (3) is welded on the top of the screw rod (1), the second jack (11) is symmetrically arranged on the surface of the anti-theft head (3), the connecting groove (13) is arranged on the bottom of the surface of the anti-theft head (3), the connecting ring (5) is movably sleeved in the connecting groove (13), the connecting sleeve (4) is welded on the top of the connecting ring (5), the first jack (6) is symmetrically arranged on the surface of the connecting sleeve (4), the nut (2) is welded on the top of the connecting sleeve (4) and above the anti-theft head (3), the slot (7) is arranged on the top of the anti-theft head (3) and corresponds to the position of the nut (2), the fixed plate (14) is symmetrically welded on the bottom of the inner cavity of the anti-theft head (3), the sliding sleeve (20) is welded on the surface of the fixed plate (14), the plug rod (15) is movably sleeved in the sliding sleeve (20), the baffle (16) is welded on the surface of the plug rod (15), the spring (17) is sleeved around the plug rod (15) between the baffle (16) and the surface of the fixed plate (14), the sliding block (19) is welded on one end of the plug rod (15), the special-shaped jack (12) is arranged on the top surface of the anti-theft head (3), and the anti-theft plug block (9) is slidably arranged in the special-shaped jack (12).

2. A theft-proof bolt according to claim 1, wherein: The indicating groove (8) is arranged on the top surface of the nut (2) and points to the first jack (6), the indicating point is arranged on the top of the anti-theft head (3) and corresponds to the position of the second jack (11).

3. The security bolt according to claim 1, wherein: The first jack (6) and the second jack (11) correspond in shape, size and orientation, and the plug rod (15) penetrates the second jack (11) and the first jack (6) in sequence.

4. The tamperproof bolt according to claim 1, wherein: The sliding groove (18) is arranged in the middle of the bottom of the inner cavity of the anti-theft head (3), and the bottom of the sliding block (19) is embeddedly and slidably connected with the sliding groove (18).

5. The tamperproof bolt according to claim 1, wherein: The top surface of the sliding block (19) is inclined, the higher side of the top of the sliding block (19) faces the plug rod (15), the clamping groove (21) is arranged on one side of the bottom of the sliding block (19) and is inclined, the clamping block (22) is welded on the bottom of the two side surfaces of the anti-theft plug block (9), and the clamping block (22) is clampedly connected with the clamping groove (21).

6. The tamperproof bolt according to claim 1, wherein: The cross section of the anti-theft plug block (9) matches the shape of the special-shaped jack (12).

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