Anti-skid and anti-theft bolt

Abstract

The utility model belongs to the technical field of fasteners, and particularly relates to an anti-skidding and anti-theft bolt which comprises a bolt head and a bolt rod, the bolt head is in a regular hexagon shape, a petal-shaped mounting hole is formed in the upper surface of the bolt head, an anti-theft column is arranged at the axis position of the mounting hole, and the anti-theft column is connected with the bolt rod. A socket spanner is inserted into the inner wall of the mounting hole, a groove is formed in the surface of the socket spanner, and the surface of the anti-theft column is slidably connected with the inner wall of the groove in a clamped mode. According to the anti-skid and anti-theft bolt, the petal-shaped mounting hole is formed in the upper surface of the bolt head, and the anti-theft column is arranged in the mounting hole, so that a non-professional tool can be prevented from being inserted into the anti-skid and anti-theft bolt, and only a tool matched with the anti-skid and anti-theft bolt can be used for operation, so that the bolt cannot be screwed, and the anti-theft effect is achieved; and particularly, great requirements are met in the fields of outdoor facilities and the automobile industry, and unnecessary loss is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field especially relates to a bolt for antiskid theft prevention. BACKGROUND

[0002] The bolt is a kind of cylindrical threaded fastener with nut, which is composed of head and screw rod, and is used for fastening two parts with through hole.

[0003] The Chinese patent with publication number CN212985779U discloses a kind of anti-theft bolt for electric power engineering, including screw rod, countersunk hole, tab, spring, fixed shaft, clamping block, nut, screw block, clamping groove, internal hex clamping groove, the utility model has beneficial effect as follows: improve the anti-theft ability of bolt, avoid others damaging bolt, cause device component loose.

[0004] But the anti-theft bolt in the above-mentioned patent when using, since using spring, and spring is in compression state for a long time, make the spring in this bolt cannot completely restore to original shape and elasticity, simultaneously when this bolt is in high temperature environment, it is easy to cause the fatigue strength of spring to further drop, to need frequently replace spring, further easy to reduce the anti-theft effect of this bolt.Therefore propose a kind of bolt for antiskid theft prevention. UTILITY MODEL CONTENTS

[0005] Based on the above-mentioned technical problem of existing, the utility model proposes a kind of bolt for antiskid theft prevention.

[0006] The utility model discloses a kind of bolt for antiskid theft prevention, including bolt head and bolt rod, the shape of the bolt head is regular hexagon, the upper surface of the bolt head is equipped with petal-shaped mounting hole, the axis of the mounting hole is provided with anti-theft column, the inner wall of the mounting hole is inserted with sleeve wrench, the surface of the sleeve wrench is equipped with recess, the surface of the anti-theft column is slidably connected with the inner wall of the recess.

[0007] The surface of the bolt head is provided with dismounting mechanism, the dismounting mechanism includes first insertion column and second insertion column, the surface of the anti-theft column is equipped with perforation, the surface of the first insertion column and the second insertion column is slidably connected with the inner wall of the perforation.

[0008] Preferably, the angle range of each included angle in the mounting hole is 85°-95°.

[0009] Preferably, the dismounting mechanism further comprises two symmetrically distributed grooves on the surface of the bolt head, the inner walls of the two grooves are hinged with a baffle through a pin shaft, the inner walls of the two grooves are provided with a connecting groove, the inner walls of the two connecting grooves are in communication with the inner wall of the mounting hole, and the surfaces of the first and second inserting columns are slidably connected with the inner walls of the connecting grooves.

[0010] Preferably, one end of the first inserting column is fixedly connected with a connecting column, one end of the connecting column is fixedly connected with a clamping block, and the surface of the second inserting column is provided with a clamping groove.

[0011] Preferably, two insertion grooves are formed in one side surface of the bolt head, and the inner walls of the two insertion grooves are slidably connected with connecting rods.

[0012] Preferably, one end of each of the two connecting rods is embedded with a positive magnet, and the opposite ends of the first and second inserting columns are respectively embedded with negative magnets.

[0013] The beneficial effects in the utility model are as follows:

[0014] 1. The petal-shaped mounting hole is formed in the upper surface of the bolt head, and the anti-theft column is arranged in the mounting hole, so that non-professional tools cannot be inserted, only tools matched with the anti-theft column can be used for operation, the bolt cannot be screwed, the effect of preventing theft is achieved, and the utility model is greatly needed in the fields of outdoor facilities and the automobile industry, and unnecessary losses are effectively prevented.

[0015] 2. The dismounting mechanism is arranged, so that the anti-theft column can be removed when an emergency occurs or the tool matched with the anti-theft column is lost and not nearby, and then the bolt can be screwed by using other tools, and the use efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A schematic view of the utility model is provided;

[0017] Figure 2 A bolt head structure perspective view of the utility model is provided;

[0018] Figure 3 A sleeve wrench structure perspective view of the utility model is provided;

[0019] Figure 4 An insertion groove structure perspective view of the utility model is provided;

[0020] Figure 5 A groove structure perspective view of the utility model is provided;

[0021] Figure 6 A first insertion column structure perspective view of a bolt for anti-skid and anti-theft is provided in the utility model;

[0022] Figure 7 A second insertion column structure perspective view of a bolt for anti-skid and anti-theft is provided in the utility model;

[0023] Figure 8 An anti-theft column structure perspective view of a bolt for anti-skid and anti-theft is provided in the utility model;

[0024] Figure 9 A connecting rod structure perspective view of a bolt for anti-skid and anti-theft is provided in the utility model;

[0025] Figure 10 A clamping groove structure perspective view of a bolt for anti-skid and anti-theft is provided in the utility model.

[0026] In the drawing: 1, bolt head; 2, bolt rod; 3, mounting hole; 4, anti-theft column; 5, sleeve wrench; 6, recess; 7, first insertion column; 71, second insertion column; 72, perforation; 73, sliding groove; 74, baffle; 75, connecting groove; 76, connecting column; 77, clamping block; 78, clamping groove; 79, insertion groove; 710, connecting rod; 711, anode magnet; 712, cathode magnet. DETAILED DESCRIPTION

[0027] 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, rather than all the embodiments.

[0028] Reference Figures 1-10 A bolt for anti-skid and anti-theft, comprising a bolt head 1 and a bolt rod 2, the shape of the bolt head 1 is a regular hexagon, a petal-shaped mounting hole 3 is formed on the upper surface of the bolt head 1, an anti-theft column 4 is arranged at the axis of the mounting hole 3, a sleeve wrench 5 is inserted into the inner wall of the mounting hole 3, a recess 6 is formed on the surface of the sleeve wrench 5, and the surface of the anti-theft column 4 is slidably connected with the inner wall of the recess 6.

[0029] In order to improve the operation feasibility, the angle range of each included angle in the mounting hole 3 is 85°-95°, the petal-shaped petal design is adopted, so that the contact area of the mounting hole 3 and the sleeve wrench 5 is larger, the unit area stress can be effectively reduced, the risk of tightening slip is reduced, and the destructive radial force can be significantly reduced due to the included angle close to 90°, and the operation stability is improved.

[0030] The present application discloses a bolt head with anti-theft function, which comprises a bolt head 1, a mounting hole 3 and an anti-theft column 4.

[0031] The surface of the bolt head 1 is provided with a dismounting mechanism, which comprises a first inserting column 7 and a second inserting column 71, and the surface of the anti-theft column 4 is provided with a through hole 72, and the surface of the first inserting column 7 and the second inserting column 71 is slidingly inserted into the inner wall of the through hole 72.

[0032] In order to position the first inserting column 7 and the second inserting column 71, the dismounting mechanism further comprises a sliding groove 73 symmetrically arranged on the surface of the bolt head 1, the inner wall of the two sliding grooves 73 is hingedly connected with a baffle 74, and the inner wall of the two sliding grooves 73 is provided with a connecting groove 75, the inner wall of the two connecting grooves 75 is communicated with the inner wall of the mounting hole 3, the surface of the first inserting column 7 and the second inserting column 71 is slidingly connected with the inner wall of the connecting groove 75, and the design of the sliding groove 73 and the connecting groove 75 can ensure the accurate positioning of the first inserting column 7 and the second inserting column 71 during installation, and the hinged structure of the baffle 74 limits the excessive movement, and the pin shaft in the inner wall of the sliding groove 73 makes the baffle 74 only open inward, thereby protecting the sliding groove 73.

[0033] In order to connect the first inserting column 7 and the second inserting column 71 together, one end of the first inserting column 7 is fixedly connected with a connecting column 76, one end of the connecting column 76 is fixedly connected with a clamping block 77, the surface of the second inserting column 71 is provided with a clamping groove 78, the first inserting column 7 and the second inserting column 71 are sequentially arranged in the connecting groove 75 through the sliding groove 73 and are in contact in the through hole 72, so that the clamping block 77 is inserted into the clamping groove 78, as shown in Figure 10 , it can be seen that the shape of the clamping groove 78 makes the first inserting column 7 and the second inserting column 71 connected together.

[0034] In order to prevent the first inserting column 7 and the second inserting column 71 from being separated, two inserting grooves 79 are arranged on one side surface of the bolt head 1, the inner wall of the two inserting grooves 79 is slidingly connected with a connecting rod 710, one end of the two connecting rods 710 is embedded with a positive magnet 711, and the opposite ends of the first inserting column 7 and the second inserting column 71 are respectively embedded with a negative magnet 712, the two connecting rods 710 in the inserting groove 79 are taken out, the connecting rod 710 is sequentially inserted into the sliding groove 73 and the connecting groove 75, until the negative magnet 712 and the positive magnet 711 are magnetically connected together, then the connecting rod 710 connected with the first inserting column 7 is rotated clockwise by 90°, and then the connecting rod 710 is pulled outward, so that the clamping block is clamped with the clamping groove 78, thereby fixing the anti-theft column 4.

[0035] By setting the dismounting mechanism, not only the anti-theft column 4 can be replaced conveniently, but also the anti-theft column 4 can be taken off when emergency occurs or the tool matched with the anti-theft column 4 is lost, so that the bolt can be screwed by other tools, and the use efficiency is improved.

[0036] Working principle: in use, first, the anti-theft column 4 is placed into the installation hole 3, then the two connecting rods 710 drive the first inserting column 7 and the second inserting column 71 to enter the installation hole 3 along the sliding groove 73 and the connecting groove 75, and enter the perforation 72 of the anti-theft column 4, so that the clamping block 77 on the first inserting column 7 enters the clamping groove 78 on the second inserting column 71, then the connecting rod 710 on the first inserting column 7 is rotated, so that the first inserting column 7 rotates 90°, and the clamping block 77 rotates 90° in the clamping groove 78, the first inserting column 7 is pulled outwards again, so that the clamping block 77 is clamped with the clamping groove 78, the connecting rod 710 is pulled outwards with a little more force, so that the two connecting rods 710 are separated from the first inserting column 7 and the second inserting column 71 respectively, then the connecting rod 710 is inserted into the inserting groove 79, and the baffle 74 falls to cover the sliding groove 73.

[0037] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A security bolt for anti-skid and anti-theft, comprising a bolt head (1) and a bolt shank (2), characterized in that: The shape of the bolt head (1) is a regular hexagon, the upper surface of the bolt head (1) is provided with a petal-shaped mounting hole (3), the axis of the mounting hole (3) is provided with an anti-theft column (4), the inner wall of the mounting hole (3) is inserted with a socket wrench (5), the surface of the socket wrench (5) is provided with a groove (6), and the surface of the anti-theft column (4) is slidably connected with the inner wall of the groove (6). The surface of the bolt head (1) is provided with a dismounting mechanism, the dismounting mechanism comprises a first insertion column (7) and a second insertion column (71), the surface of the anti-theft column (4) is provided with a through hole (72), and the surfaces of the first insertion column (7) and the second insertion column (71) are slidably connected with the inner wall of the through hole (72).

2. The anti-skid and anti-theft bolt according to claim 1, characterized in that: The angle range of each included angle in the mounting hole (3) is 85°-95°.

3. The anti-skid and anti-theft bolt according to claim 1, characterized in that: The dismounting mechanism further comprises a sliding groove (73) symmetrically arranged on the surface of the bolt head (1), the inner walls of two sliding grooves (73) are hingedly connected with a baffle (74) through a pin shaft, and the inner walls of two sliding grooves (73) are provided with a connecting groove (75), the inner walls of two connecting grooves (75) are in communication with the inner wall of the mounting hole (3), and the surfaces of the first insertion column (7) and the second insertion column (71) are slidably connected with the inner wall of the connecting groove (75).

4. The anti-slip and anti-theft bolt according to claim 1, characterized in that: One end of the first insertion column (7) is fixedly connected with a connecting column (76), one end of the connecting column (76) is fixedly connected with a clamping block (77), and the surface of the second insertion column (71) is provided with a clamping groove (78).

5. The anti-slip and anti-theft bolt according to claim 1, characterized in that: The surface of the bolt head (1) is provided with two insertion grooves (79), and the inner walls of two insertion grooves (79) are slidably connected with a connecting rod (710).

6. The anti-slip and anti-theft bolt according to claim 5, characterized in that: One end of two connecting rods (710) is embedded with a positive magnet (711), and the opposite ends of the first insertion column (7) and the second insertion column (71) are respectively embedded with a negative magnet (712).

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