Anti-theft bolt with high safety

Abstract

The utility model relates to the technical field of bolts, in particular to a high-safety anti-theft bolt which comprises a screw rod and a nut in threaded connection with the screw rod, the screw rod is provided with a hexagonal flat head, and the hexagonal flat head is in intermittent connection with the screw rod through a plug connector; the plug connector comprises a plurality of groups of plug rods which are connected to the hexagonal flat head in a sliding manner, a plurality of groups of plug grooves are formed in the screw rod, and each plug rod is matched with the corresponding plug groove in a plug manner; an extending frame is fixedly connected to the hexagonal flat head, and a driving piece used for driving the multiple sets of inserting-connecting rods to be inserted into the corresponding inserting-connecting grooves is arranged in the extending frame. And in the downward sliding stroke of the vertical rod, the multiple sets of driving rods are driven by the driving unit to slide downwards, in the downward sliding stroke of each driving rod, the corresponding inserting rod can be driven to slide towards one side of the interior of the corresponding inserting groove, the inserting rods can be inserted into the inserting grooves, when the hexagonal flat head is driven by external force to rotate, the screw rod is driven to rotate, and the bolt is conveniently and rapidly disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to an anti-theft bolt with high safety. Background Art

[0002] Bolts are tools that use the physics and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually tighten objects and mechanical parts. Bolts are indispensable industrial necessities in daily life, such as the extremely small bolts used in mobile phones, glasses, clocks, electronics, etc.; general bolts in televisions, electrical products, musical instruments, furniture, etc.; even engineering, construction, bridges use large bolts and nuts; transportation equipment, airplanes, high-speed trains, trams, cars, etc. use both large and small bolts. Ordinary screws are used in many products, and products installed outdoors have many disadvantages in management, and often suffer from theft and misappropriation. The use of special anti-theft screws greatly reduces unnecessary losses.

[0003] In order to solve the above technical problems, relevant patents have been proposed in the prior art, such as a Chinese patent with application number 202321186107.0, authorization publication number CN219953929U, and invention name "An anti-theft bolt". The above patent discloses an anti-theft bolt, including a screw rod and a screw head installed at the end of the screw rod; wherein an anti-theft seat is installed at the bottom of the screw head; a limiting column is fixedly installed on the top of the screw head, and an anti-theft kit is installed on the limiting column, and the anti-theft kit is connected to the anti-theft seat; the anti-theft seat includes a shell installed on the screw head, and a ball movably installed on the shell, and the ball is in contact with the bottom surface of the screw head.

[0004] In the above patent, by setting the anti-theft seat and the anti-theft kit, after the bolt and nut are locked together, the screw head of the bolt is set in the inner cavity of the anti-theft seat and the anti-theft kit, and the criminals cannot remove the bolt by rotating the screw head. Although the above patent can play an anti-theft effect, if the bolt really needs to be removed, it is difficult to remove the bolt, which affects the use of the entire bolt to a certain extent. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-theft bolt with high safety to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-theft bolt with high safety, comprising a screw and a nut threadedly connected to the screw, the screw being provided with a hexagonal flat head, the hexagonal flat head being intermittently connected to the screw through a plug-in piece; the plug-in piece comprising a plurality of groups of plug-in rods slidably connected to the hexagonal flat head, a plurality of groups of plug-in slots being provided on the screw, each of the plug-in rods being plugged and matched with a corresponding plug-in slot; an extension frame being fixedly connected to the hexagonal flat head, a driving member for driving the plurality of groups of plug-in rods to be plugged into the corresponding plug-in slots being provided inside the extension frame; the driving member comprising a vertical rod vertically slidably connected to the inside of the extension frame, the vertical rod driving the plurality of groups of plug-in rods to slide synchronously through a driving unit; and a locking unit for locking the vertical rod is provided on the extension frame.

[0007] Furthermore, the driving unit includes a connecting plate fixedly connected to the bottom of the vertical rod, and a plurality of driving rods are arranged on the bottom of the connecting plate. An arc groove is opened on the bottom of each driving rod, and each driving rod is respectively adapted to the corresponding plug-in rod.

[0008] Furthermore, a sliding groove is provided on the hexagonal flat head, the plug-in rod is slidably connected to the hexagonal flat head through the sliding groove, and a connecting spring is provided between the plug-in rod and the sliding groove, and the elastic force of the connecting spring drives the plug-in rod to slide out from the plug-in groove.

[0009] Furthermore, a force-bearing block is fixedly connected to the vertical rod, a wedge-shaped groove is provided on the force-bearing block, a sliding rod is slidably connected to the extension frame through a limiting portion, and an adapter block adapted to the wedge-shaped block is fixedly connected to the sliding rod; the locking unit is arranged between the sliding rod and the extension frame.

[0010] Furthermore, the locking unit includes a padlock, a locking plate is hinged on the sliding rod, a through hole is opened on the locking plate, a hanging ring is fixedly connected to the extension frame, the locking plate and the sliding rod are in a vertical state and the hanging ring passes through the through hole, and the padlock locks the hanging ring.

[0011] Furthermore, the limiting portion includes a limiting strip fixedly connected to the bottom of the sliding rod, and a limiting groove matched with the limiting strip is opened on the top of the extension frame, and the limiting strip is slidably connected in the limiting groove.

[0012] Furthermore, a plurality of sets of fasteners are arranged on the hexagonal flat head to improve the stability of the bolt during installation.

[0013] Furthermore, the fastener includes a fastening plate vertically slidably connected to the inside of the hexagonal flat head, and an articulated frame is arranged between the fastening plate and the plug-in rod. The elastic force of the connecting spring drives the plug-in rod to slide out of the locking groove, and at the same time, drives the fastening plate to abut against the installed workpiece through the articulated frame.

[0014] Furthermore, a plurality of groups of fastening teeth are arranged at the bottom of the fastening plate.

[0015] Furthermore, a positioning spring is provided between the connecting plate and the extension frame, and the elastic force of the positioning spring drives the connecting plate to slide upward.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the anti-theft bolt with high security is matched with the bolt, the hexagonal flat head, the plug-in rod, the slot, the extension frame, the locking unit, etc. Specifically, when the bolt needs to be driven to rotate, the vertical rod is driven to slide downward at this moment, and the driving unit drives multiple groups of driving rods to slide downward during the downward sliding stroke of the vertical rod, and each driving rod will drive the plug-in rod to slide toward one side of the plug-in slot during the downward sliding stroke, so that the plug-in rod can be plugged into the plug-in slot. At this moment, when an external force drives the hexagonal flat head to rotate, it will drive the screw rod to rotate, which is convenient and fast to disassemble the bolt, meet the work needs, and avoid the inconvenience of operation when the bolt needs to be disassembled. When the locking unit is used to lock the state of the vertical rod, the vertical rod will not drive multiple groups of plug-in rods to be plugged into the corresponding plug-in slot through the driving unit at this moment. When the hexagonal flat head rotates at this moment, it will not drive the screw rod to rotate, so that the anti-theft effect of the bolt can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the overall top view structure provided for an embodiment of the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the AA section structure along the middle edge;

[0021] Figure 4 Another overall schematic diagram of the state provided by the embodiment of the utility model;

[0022] Figure 5 Another cross-sectional schematic diagram of another state provided by an embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of the screw provided in an embodiment of the utility model.

[0024] Explanation of the accompanying drawings: 1. screw rod; 2. nut; 3. hexagonal flat head; 4. extension frame; 5. plug-in rod; 6. plug-in slot; 7. slide slot; 8. connecting spring; 9. drive rod; 10. connecting plate; 11. vertical rod; 12. wedge-shaped slot; 13. adapter block; 14. sliding rod; 15. locking plate; 16. padlock; 17. fastening plate; 18. hinged frame; 19. fastening teeth; 20. positioning spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: an anti-theft bolt with high safety, comprising a screw 1 and a nut 2 threadedly connected to the screw 1, the screw 1 is provided with a hexagonal flat head 3, the hexagonal flat head 3 is intermittently connected to the screw 1 through a plug-in piece; the plug-in piece comprises a plurality of groups of plug-in rods 5 slidably connected to the hexagonal flat head 3, a plurality of groups of plug-in slots 6 are provided on the screw 1, each plug-in rod 5 is plugged and matched with the corresponding plug-in slot 6; an extension frame 4 is fixedly connected to the hexagonal flat head 3, a driving member for driving the plurality of groups of plug-in rods 5 to be plugged into the corresponding plug-in slots 6 is arranged inside the extension frame 4; the driving member comprises a vertical rod 11 vertically slidably connected to the inside of the extension frame 4, the vertical rod 11 drives the plurality of groups of plug-in rods 5 to slide synchronously through the driving unit; and a locking unit for locking the vertical rod 11 is arranged on the extension frame 4.

[0027] Specifically, the anti-theft bolt with high security includes a screw rod 1 and a nut 2 threadedly connected to the screw rod 1, and the screw rod 1 is equipped with a hexagonal flat head 3. The surfaces of the screw rod 1, the nut 2 and the hexagonal flat head 3 are uniformly covered with an electroplating layer, and the surface of the electroplating layer is also uniformly covered with an anti-corrosion coating. The electroplating layer and the anti-corrosion coating can prevent the outer surface of the bolt from oxidizing and rusting even when exposed to an open air environment, thereby preventing the rust from affecting the normal operation of the bolt. The hexagonal flat head 3 is intermittently connected to the screw rod 1 through a plug-in connector. Specifically, if the plug-in connector is not inserted into the screw rod 1, the hexagonal flat head 3 will not drive the screw rod 1 to rotate when it rotates at this moment. On the contrary, when the plug-in connector is plugged into the screw rod 1, the hexagonal flat head 3 will drive the screw rod 1 to rotate together when it rotates at this moment, which is convenient for the installation and removal of the bolt. The plug-in connector includes a plurality of groups of plug-in rods 5 slidably connected to the hexagonal flat head 3, and a plurality of groups of plug-in slots 6 are provided on the screw rod 1. Each plug-in rod 5 is plugged and matched with the corresponding plug-in slot 6 to meet the working needs. An extension frame 4 is fixedly connected to the hexagonal flat head 3, and a driving member for driving multiple groups of plug-in rods 5 to be plugged into the corresponding plug-in slots 6 is arranged inside the extension frame 4. Therefore, when it is necessary to adjust the state of the bolt through the hexagonal flat head 3, the driving member drives multiple groups of plug-in rods 5 to be clamped into the corresponding plug-in slots 6 to meet the working needs. The driving member includes a vertical rod 11 vertically slidably connected to the extension frame 4. The vertical rod 11 drives multiple groups of plug-in rods 5 to slide synchronously through the driving unit, and the use effect is better. A locking unit for locking the vertical rod 11 is arranged on the extension frame 4. Therefore, when it is not needed, the vertical rod 11 can be locked by the locking unit to achieve an anti-theft effect. Specifically, when the bolt needs to be driven to rotate, the vertical rod 11 is driven to slide downward. During the downward sliding stroke of the vertical rod 11, the driving unit drives the multiple groups of driving rods 9 to slide downward. During the downward sliding stroke of each driving rod 9, the plug-in rod 5 is driven to slide toward one side of the inside of the plug-in slot 6, so that the plug-in rod 5 can be plugged into the inside of the plug-in slot 6. At this moment, when an external force drives the hexagonal flat head 3 to rotate, it will drive the screw 1 to rotate, meeting the working needs. However, when the locking unit is used to lock the state of the vertical rod 11, the vertical rod 11 will not drive the multiple groups of plug-in rods 5 to be plugged into the corresponding plug-in slot 6 through the driving unit. At this moment, when the hexagonal flat head 3 rotates, it will not drive the screw 1 to rotate, thereby achieving the anti-theft effect of the bolt.

[0028] In the embodiment provided by the utility model, the driving unit includes a connecting plate 10 fixedly connected to the bottom of the vertical rod 11, and a plurality of driving rods 9 are arranged on the bottom of the connecting plate 10. An arc groove is opened on the bottom of each driving rod 9, and each driving rod 9 is respectively adapted to the corresponding plug-in rod 5. When the driving rod 9 slides downward, the arc groove at the bottom of the driving rod 9 will abut against the plug-in rod 5 to drive the plug-in rod 5 to slide.

[0029] In the embodiment provided by the utility model, a sliding groove 7 is provided on the hexagonal flat head 3, and the connecting rod 5 is slidably connected to the hexagonal flat head 3 through the sliding groove 7, and a connecting spring 8 is provided between the connecting rod 5 and the sliding groove 7. The elastic force of the connecting spring 8 drives the connecting rod 5 to slide out from the inside of the plug-in groove 6. Therefore, in the absence of external force, the elastic force of the connecting spring 8 drives the connecting rod 5 away from the plug-in groove 6. At this moment, the hexagonal flat head 3 is not integrated with the screw rod 1, and the rotation of the hexagonal flat head 3 does not drive the screw rod 1 to rotate.

[0030] In the embodiment provided by the utility model, a force-bearing block is fixedly connected to the vertical rod 11, a wedge-shaped groove 12 is provided on the force-bearing block, a sliding rod 14 is slidably connected to the extension frame 4 through a limiting portion, and an adapter block 13 adapted to the wedge-shaped block is fixedly connected to the sliding rod 14. The locking unit is arranged between the sliding rod 14 and the extension frame 4. Specifically, when the locking unit locks the state of the sliding rod 14, the force-bearing block is located directly below the wedge-shaped groove 12 at this moment. When the vertical rod 11 slides downward, the wedge-shaped groove 12 on the force-bearing block will abut against the adapter block 13, resulting in motion interference. Therefore, the vertical rod 11 cannot slide downward to a predetermined position so that the plug-in rod 5 is clamped into the plug-in groove 6. It can ensure that the entire bolt can be driven to rotate only when the locking unit is unlocked, thereby achieving an anti-theft effect.

[0031] In the embodiment provided by the utility model, the locking unit includes a padlock 16, a locking plate 15 is hinged on the sliding rod 14, a through hole is provided on the locking plate 15, a hanging ring is fixedly connected to the extension frame 4, the locking plate 15 and the sliding rod 14 are in a vertical state and the hanging ring passes through the through hole, and the padlock 16 locks the hanging ring to meet the work needs. The padlock 16 is a common password lock or key lock on the market, which can play an anti-theft effect.

[0032] In the embodiment provided by the utility model, the limiting part includes a limiting strip fixedly connected to the bottom of the sliding rod 14, and a limiting groove matched with the limiting strip is opened on the top of the extension frame 4. The limiting strip is slidably connected in the limiting groove, further improving the stability of the sliding rod 14 when sliding.

[0033] In the embodiment provided by the utility model, multiple sets of fasteners are also provided on the hexagonal flat head 3 to improve the stability of the bolt during installation. The fasteners include a fastening plate 17 vertically slidably connected to the inside of the hexagonal flat head 3, and a hinge frame 18 is provided between the fastening plate 17 and the plug rod 5. The elastic force of the connecting spring 8 drives the plug rod 5 to slide out from the inside of the locking groove, and at the same time, the fastening plate 17 is driven to abut against the installed workpiece through the hinge frame 18. Therefore, during use, when the elastic force of the connecting spring 8 drives the plug rod 5 to slide out from the inside of the locking groove, the fastening plate 17 will abut against the workpiece at this moment, increasing the friction force, improving the stability of the bolt during installation, and achieving a better use effect.

[0034] In the embodiment provided by the utility model, a plurality of sets of fastening teeth 19 are arranged at the bottom of the fastening plate 17 to improve the stability of the bolt during installation and achieve better effect.

[0035] In the embodiment provided by the utility model, a positioning spring 20 is further provided between the connecting plate 10 and the extension frame 4, and the elastic force of the positioning spring 20 drives the connecting plate 10 to slide upwards, which is convenient for use.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] 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. A highly secure anti-theft bolt, comprising a screw rod (1) and a nut (2) threadedly connected to the screw rod (1), characterized in that: The screw rod (1) is provided with a hexagonal flat head (3), and the hexagonal flat head (3) is intermittently connected to the screw rod (1) via a plug-in connector; The plug-in connector comprises a plurality of groups of plug-in rods (5) slidably connected to the hexagonal flat head (3); the screw rod (1) is provided with a plurality of groups of plug-in slots (6); each of the plug-in rods (5) is plugged into and matched with a corresponding plug-in slot (6); An extension frame (4) is fixedly connected to the hexagonal flat head (3), and a driving member for driving a plurality of groups of plug-in rods (5) to be plugged into corresponding plug-in slots (6) is arranged inside the extension frame (4); The driving member comprises a vertical rod (11) vertically slidably connected inside the extension frame (4), and the vertical rod (11) drives the multiple groups of plug-in rods (5) to slide synchronously through the driving unit; Furthermore, a locking unit for locking the vertical rod (11) is provided on the extension frame (4).

2. The anti-theft bolt with high safety according to claim 1, characterized in that: The driving unit comprises a connecting plate (10) fixedly connected to the bottom of the vertical rod (11), and a plurality of driving rods (9) are arranged on the bottom of the connecting plate (10), each driving rod (9) is provided with an arc groove on the bottom, and each driving rod (9) is respectively matched with a corresponding plug-in rod (5).

3. The anti-theft bolt with high safety according to claim 2, characterized in that: The hexagonal flat head (3) is provided with a sliding groove (7), the plug-in rod (5) is slidably connected to the hexagonal flat head (3) via the sliding groove (7), and a connecting spring (8) is provided between the plug-in rod (5) and the sliding groove (7), and the elastic force of the connecting spring (8) drives the plug-in rod (5) to slide out from the inside of the plug-in groove (6) where it is located.

4. The anti-theft bolt with high safety according to claim 2, characterized in that: A force-bearing block is fixedly connected to the vertical rod (11), a wedge-shaped groove (12) is provided on the force-bearing block, a sliding rod (14) is slidably connected to the extension frame (4) via a limiting portion, and an adapter block (13) adapted to the wedge-shaped block is fixedly connected to the sliding rod (14); The locking unit is arranged between the sliding rod (14) and the extension frame (4).

5. The anti-theft bolt with high safety according to claim 4, characterized in that: The locking unit comprises a padlock (16), a locking plate (15) is hinged on the sliding rod (14), a through hole is provided on the locking plate (15), a hanging ring is fixedly connected to the extension frame (4), the locking plate (15) and the sliding rod (14) are in a vertical state and after the hanging ring passes through the through hole, the padlock (16) locks the hanging ring.

6. The anti-theft bolt with high safety according to claim 4, characterized in that: The limiting portion comprises a limiting strip fixedly connected to the bottom of the sliding rod (14); a limiting groove matching the limiting strip is provided on the top of the extension frame (4); and the limiting strip is slidably connected in the limiting groove.

7. The anti-theft bolt with high safety according to claim 3, characterized in that: The hexagonal flat head (3) is also provided with a plurality of sets of fasteners to improve the stability of the bolt during installation.

8. The anti-theft bolt with high safety according to claim 7, characterized in that: The fastener comprises a fastening plate (17) vertically slidably connected inside the hexagonal flat head (3), and an articulated frame (18) is arranged between the fastening plate (17) and the plug-in rod (5). The elastic force of the connecting spring (8) drives the plug-in rod (5) to slide out of the locking groove, while driving the fastening plate (17) to abut against the installed workpiece through the articulated frame (18).

9. The anti-theft bolt with high safety according to claim 8, characterized in that: A plurality of groups of fastening teeth (19) are arranged at the bottom of the fastening plate (17).

10. The anti-theft bolt with high safety according to claim 2, characterized in that: A positioning spring (20) is also provided between the connecting plate (10) and the extension frame (4), and the elastic force of the positioning spring (20) drives the connecting plate (10) to slide upwards.

Images