Anti-theft bolt

Abstract

The invention relates to the technical field of hardware, in particular to an anti-theft bolt which comprises a screw rod, a connecting handle is fixed to one end of the screw rod, a nut is in threaded connection with a rod body of the screw rod in a sleeving mode, a check block is movably connected to the surface of the screw rod, a push rod is inserted into the surface of the connecting handle, the push rod is inserted into the screw rod to limit the check block, and after the check block stretches out, the nut is subjected to anti-disengaging limiting. The anti-theft bolt has the beneficial effects that according to the anti-theft bolt, the push rod is inserted into the screw, the push rod pushes the check block to stretch out, the stretch-out check block is blocked on one side of the nut, anti-disengaging limiting of the nut is achieved, the check block can be adjusted by a user, and therefore the bolt can be conveniently disassembled.

Description

Technical Field

[0001] The present invention relates to the technical field of hardware, and specifically relates to an anti-theft bolt. Background Technique

[0002] A bolt is a mechanical part, a cylindrical threaded fastener used in conjunction with a nut. A type of fastener composed of two parts, a head and a screw rod (a cylinder with external threads), which needs to cooperate with a nut for fastening and connecting two parts with through holes.

[0003] In the prior art, in order to achieve anti-loosening and anti-theft limit of the bolt after installation, usually after the screw rod of the bolt and the nut are screwed together, a convex block is welded on the rod body of the screw rod. The convex block blocks the nut from falling off the screw rod, realizing the anti-loosening limit of the nut and the anti-theft of the bolt.

[0004] However, when the traditional bolt with a welded convex block needs to be replaced, it can only be removed by cutting and damaging the bolt, so that the bolt cannot be recycled, resulting in a problem of resource waste. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-theft bolt to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An anti-theft bolt includes a screw rod, a connecting handle is fixed at one end of the screw rod, a nut is sleeved and screwed on the rod body of the screw rod, a blocking block is movably connected to the surface of the screw rod, a push rod is inserted into the surface of the connecting handle, and the push rod is inserted into the screw rod to limit the blocking block. After the blocking block extends out, it limits the anti-loosening of the nut.

[0007] Preferably, the connecting handle has a frustum structure, the side wall of the connecting handle is a circular arc curved surface, and a reserved groove is opened at one end of the connecting handle, and a through hole is opened on the surface of the reserved groove, and the through hole penetrates the screw rod.

[0008] Preferably, a side groove is opened on the surface of the screw rod, the side groove is communicated with the through hole, a limiting shaft is fixed between two parallel side walls of the side groove, the limiting shaft penetrates through a through hole, the through hole is opened on the surface of the blocking block, and an inclined surface is opened at one end of the blocking block.

[0009] Preferably, installation grooves are opened on both the top surface and the bottom surface of the blocking block, rubber clamping strips are fixed on the surface of the installation grooves, and the thickness of the rubber clamping strips is greater than the depth of the installation grooves.

[0010] Preferably, a blocking piece is fixed on the surface of the screw rod, and the blocking piece seals the through hole and the side groove.

[0011] Preferably, one end of the push rod is fixed with a connecting piece, the connecting piece is inserted into the reserved groove, the push rod is inserted into the through hole, embedding grooves are formed on the surface of the connecting piece, there are a plurality of the embedding grooves, the plurality of embedding grooves are arranged in a circumferential distribution, and a hanging strip is fixed between two parallel side walls of the embedding groove.

[0012] Preferably, a rubber retaining ring is fixed on the surface of the reserved groove, the rubber retaining ring is in an annular plate structure, and after the connecting piece is pushed into the reserved groove, the rubber retaining ring shields the embedding groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The anti-theft bolt proposed by the present invention realizes the anti-loosening limit of the nut by inserting the push rod into the screw rod, pushing the blocking block out by the push rod, and the blocking block after extension blocks on one side of the nut, and the blocking block can be adjusted by the user, so that it is convenient to disassemble the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the connecting handle of the present invention; Figure 3 is a schematic semi-sectional structure of the present invention Figure 1 ; Figure 4 is a schematic semi-sectional structure of the present invention Figure 2 ; Figure 5 is a schematic structural diagram of the blocking block of the present invention; Figure 6 is a schematic structural diagram of the connection between the push rod and the connecting piece of the present invention.

[0015] In the figure: screw rod 1, connecting handle 2, nut 3, reserved groove 4, through hole 5, side groove 6, limiting shaft 7, perforation 8, blocking block 9, inclined surface 10, installation groove 11, rubber clamping strip 12, blocking piece 13, push rod 14, connecting piece 15, embedding groove 16, hanging strip 17, rubber retaining ring 18. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to clearly and completely describe the purpose and technical solution of the present invention and make the advantages more clear, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention. Embodiment 1

[0017] Please refer to Figures 1 to 4, the present invention provides a technical solution: an anti-theft bolt, including a screw rod 1, one end of the screw rod 1 is fixed with a connecting handle 2, a nut 3 is sleeved and screwed on the rod body of the screw rod 1, a stop block 9 is movably connected to the surface of the screw rod 1, a push rod 14 is inserted into the surface of the connecting handle 2, the push rod 14 is inserted into the screw rod 1 to limit the stop block 9, and after the stop block 9 extends out, it prevents the nut 3 from coming off and limits the position; by inserting the push rod 14 into the screw rod 1, the push rod 14 pushes the stop block 9 to extend out, and the extended stop block 9 blocks on one side of the nut 3 to realize the anti-loosening limit of the nut 3, and the stop block 9 can be adjusted by the user, so it is convenient to disassemble the bolt. Embodiment 2

[0018] On the basis of Embodiment 1, in order to realize the installation of the push rod 14, the connecting handle 2 has a frustum structure, the side wall of the connecting handle 2 is a circular arc curved surface, and one end of the connecting handle 2 is provided with a reserved groove 4, a through hole 5 is opened on the surface of the reserved groove 4, the through hole 5 penetrates the screw rod 1, and a retaining piece 13 is fixed on the surface of the screw rod 1, and the retaining piece 13 seals the through hole 5 and the side groove 6. Embodiment 3

[0019] Refer to the appendix Figure 5 On the basis of Embodiment 2, in order to realize the movable adjustment of the stop block 9, a side groove 6 is opened on the surface of the screw rod 1, the side groove 6 is communicated with the through hole 5, a limiting shaft 7 is fixed between two parallel side walls of the side groove 6, the limiting shaft 7 penetrates through a through hole 8, the through hole 8 is opened on the surface of the stop block 9, one end of the stop block 9 is provided with an inclined surface 10, and mounting grooves 11 are opened on both the top surface and the bottom surface of the stop block 9, and a rubber clamping strip 12 is fixed on the surface of the mounting groove 11, and the thickness of the rubber clamping strip 12 is greater than the depth of the mounting groove 11. Embodiment 4

[0020] Refer to the appendix Figure 6 On the basis of Embodiment 3, in order to realize the disassembly of the push rod 14, a connecting piece 15 is fixed at one end of the push rod 14, the connecting piece 15 is inserted into the reserved groove 4, the push rod 14 is inserted into the through hole 5, an embedding groove 16 is opened on the surface of the connecting piece 15, there are a plurality of embedding grooves 16, the plurality of embedding grooves 16 are arranged in a circular pattern, a hanging strip 17 is fixed between two parallel side walls of the embedding groove 16, and a rubber retaining ring 18 is fixed on the surface of the reserved groove 4, the rubber retaining ring 18 has an annular plate structure, and after the connecting piece 15 is pushed into the reserved groove 4, the rubber retaining ring 18 covers the embedding groove 16.

[0021] During actual use, refer to the appendix Figure 1As shown, at this time, the stopper 9 extends out of the side groove 6, that is, the extended stopper 9 blocks the nut 3 to prevent the nut 3 from falling off from one end of the screw rod 1, and plays an anti-theft role for the bolt. At this time, the connecting piece 15 is in the reserved groove 4, and the embedded groove 16 on the surface of the connecting piece 15 is covered by the rubber retaining ring 18, so that the thief cannot find the disassembly structure of the bolt; when the staff needs to disassemble and replace the bolt, they pinch the rubber retaining ring 18 by hand and fold the rubber retaining ring 18. At this time, the embedded groove 16 is exposed, and the staff hooks it on the hanging strip 17 with the help of a hook and pulls it outward until the push rod 14 When the nut 3 is screwed on the screw rod 1, the stopper 9 is pushed and pulled out of the through hole 5. The push rod 14 is pushed along the inclined surface 10 to rotate the stopper 9 around the limit axis 7, or the stopper 9 is manually pushed and pulled out of the side groove 6 to rotate around the limit axis 7.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-theft bolt, comprising a screw rod (1), a connecting handle (2) is fixed at one end of the screw rod (1), and a nut (3) is sleeved and screwed on the rod body of the screw rod (1), and it is characterized in that: A stopper (9) is movably connected to the surface of the screw rod (1), a push rod (14) is inserted into the surface of the connecting handle (2), the push rod (14) is inserted into the screw rod (1) to limit the stopper (9), and after the stopper (9) extends out, it prevents the nut (3) from coming off and limits it.

2. The anti-theft bolt according to claim 1, characterized in that: The connecting handle (2) has a frustum structure, the side wall of the connecting handle (2) is a circular arc-shaped curved surface, and a reserved groove (4) is opened at one end of the connecting handle (2), a through hole (5) is opened on the surface of the reserved groove (4), and the through hole (5) penetrates the screw rod (1).

3. The anti-theft bolt according to claim 2, characterized in that: A side groove (6) is opened on the surface of the screw rod (1), the side groove (6) communicates with the through hole (5), a limiting shaft (7) is fixed between two parallel side walls of the side groove (6), the limiting shaft (7) penetrates through a through hole (8), the through hole (8) is opened on the surface of the stopper (9), and an inclined surface (10) is opened at one end of the stopper (9).

4. The anti-theft bolt according to claim 1, characterized in that: Mounting grooves (11) are opened on both the top surface and the bottom surface of the stopper (9), rubber clamping strips (12) are fixed on the surface of the mounting grooves (11), and the thickness of the rubber clamping strips (12) is greater than the depth of the mounting grooves (11).

5. The anti-theft bolt according to claim 1, characterized in that: A baffle (13) is fixed on the surface of the screw rod (1), and the baffle (13) seals the through hole (5) and the side groove (6).

6. The anti-theft bolt according to claim 2, characterized in that: A connecting piece (15) is fixed at one end of the push rod (14), the connecting piece (15) is inserted into the reserved groove (4), the push rod (14) is inserted into the through hole (5), embedding grooves (16) are opened on the surface of the connecting piece (15), there are multiple embedding grooves (16), the multiple embedding grooves (16) are arranged in a circular pattern, and a hanging strip (17) is fixed between two parallel side walls of the embedding grooves (16).

7. The anti-theft bolt according to claim 6, characterized in that: A rubber retaining ring (18) is fixed on the surface of the reserved groove (4), the rubber retaining ring (18) has an annular plate structure, and after the connecting piece (15) is pushed into the reserved groove (4), the rubber retaining ring (18) covers the embedding groove (16).

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