CN214998786U - Anti-theft anti-loose bolt - Google Patents

Abstract

The utility model discloses an anti-theft and anti-loosening bolt, which comprises an anti-dismantling column, a hexagonal hole, a hexagonal screw head, a flange plate, a screw rod, a first clamping groove, a second clamping groove, a mounting hole, a mounting rod, a screw knife groove, a clamping block, a jack, a push rod, a spring and a through hole, wherein the hexagonal hole axially penetrating through the anti-dismantling column is arranged at the central position of the upper part of the anti-dismantling column, the hexagonal screw head is arranged in the hexagonal hole, the hexagonal screw head is axially and slidably matched with the hexagonal hole, the flange plate is fixedly arranged at the lower end of the hexagonal screw head, the screw rod coaxially arranged with the hexagonal screw head is fixedly arranged at the bottom of the flange plate, six outer side walls of the hexagonal screw head are respectively provided with the first clamping grooves, the six first clamping grooves are positioned at the same horizontal height, compared with the prior art, the bolt can be effectively prevented from loosening, the bolt can be effectively prevented from being dismantled by other people at will, and the use safety and the reliability of the bolt are improved, simple structure, convenient use and convenient popularization and application.

Description

Anti-theft anti-loose bolt

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of fastener, especially a theftproof check bolt.

[ background of the invention ]

Bolts are mechanical parts, cylindrical threaded fasteners fitted with nuts. The fastener consists of a head and a cylinder with a screw rod provided with external threads, and is matched with a nut and used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection. The bolt with the structure has the following defects in the actual use process: in addition, the existing bolt has no anti-theft function, and the bolt is easily detached from an object by using a wrench or a screwdriver, so that an object fixed by the bolt is stolen by someone with other usefulness, such as a vehicle license plate.

[ Utility model ] content

The utility model aims at solving the problem in the prior art and providing a theft-proof check bolt.

In order to achieve the above purpose, the utility model provides an anti-theft and anti-loosening bolt, which comprises an anti-dismantling column, a hexagonal hole, a hexagonal screw head, a flange plate, a screw rod, a first clamping groove, a second clamping groove, a mounting hole, a mounting rod, a screw thread groove, a clamping block, a jack, a push rod, a spring and a through hole, wherein the hexagonal hole axially penetrating through the anti-dismantling column is arranged at the central position of the upper part of the anti-dismantling column, the hexagonal screw head is arranged in the hexagonal hole, the hexagonal screw head is axially and slidably matched with the hexagonal hole, the flange plate is fixedly arranged at the lower end of the hexagonal screw head, the screw rod coaxially arranged with the hexagonal screw head is fixedly arranged at the bottom of the flange plate, first clamping grooves are arranged on six outer side walls of the hexagonal screw head, the six first clamping grooves are positioned at the same horizontal height, second clamping grooves are arranged on six inner side walls of the hexagonal hole, the six second clamping grooves are positioned at the same horizontal height, the upper ends of the second clamping grooves and the upper ends of the first clamping grooves are at the same horizontal height, the notches of the second clamping grooves are arranged opposite to the notches of the first clamping grooves, the upper end of the anti-dismantling column is positioned right above each second clamping groove and is provided with a mounting hole, the lower end of the mounting hole is communicated with the upper end of each second clamping groove, each mounting hole is internally provided with a mounting rod in a rotating way, the upper end of each mounting rod is provided with a screwdriver groove, each second clamping groove is internally provided with a fixture block, the fixture block is fixedly connected with the lower end of the mounting rod, the lower end of the anti-dismantling column is uniformly provided with a plurality of jacks, each jack is internally provided with a push rod in a sliding way, a spring is arranged between the bottom of each jack and the upper end of the push rod, the upper end of the spring is fixedly connected with the bottom of each jack, the lower end of the spring is fixedly connected with the upper end of the push rod, and the upper part of the flange plate is positioned right below each jack and is provided with a through hole penetrating through hole of the flange plate, the lower end of the ejector rod penetrates through the through hole, and the ejector rod is in axial sliding fit with the through hole.

Preferably, the cross section of the anti-dismantling column is circular, and the height of the anti-dismantling column is the same as that of the hexagonal screw head.

Preferably, the cross section of the flange plate is circular, and the bottom of the flange plate is provided with anti-skid grains.

Preferably, the upper end of the clamping block is attached to the upper portion of the second clamping groove.

Preferably, the lower end of the ejector rod is provided with anti-skid grains.

The utility model has the advantages that: the utility model discloses an outside cover at hexagonal screw head is equipped with prevents tearing open the post, the cross section of preventing tearing open the post is circular, want to get to prevent tearing open each installation pole of the must exact rotation of post, make the fixture block of every installation pole lateral part all deviate from in the first draw-in groove, if there is a fixture block not deviate from in the first draw-in groove, then prevent tearing open the post and can not separate with hexagonal screw head, then this bolt can not be dismantled, therefore the effect of theftproof has been played, owing to set up the ejector pin, the ejector pin can let the lower extreme top of ejector pin tightly on the surface of object under the spring action of spring, play locking effect. Compared with the prior art, can prevent effectively that the bolt is not hard up, prevent effectively that the bolt from being dismantled at will by other people, promote security and reliability that the bolt used, simple structure, convenient to use, facilitate promotion is used.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a structural side view of the anti-theft and anti-loose bolt of the utility model.

Fig. 2 is a top view of the anti-theft and anti-loosening bolt of the present invention.

In the figure: 1-anti-dismantling column, 2-hexagonal hole, 3-hexagonal screw head, 4-flange plate, 5-screw, 6-first clamping groove, 7-second clamping groove, 8-mounting hole, 9-mounting rod, 10-screwdriver groove, 11-fixture block, 12-jack, 13-push rod, 14-spring and 15-through hole.

[ detailed description ] embodiments

Referring to fig. 1 and 2, the anti-theft and anti-loosening bolt of the present invention comprises an anti-dismantling post 1, a hexagonal hole 2, a hexagonal screw head 3, a flange 4, a screw rod 5, a first clamping groove 6, a second clamping groove 7, a mounting hole 8, a mounting rod 9, a screw driver groove 10, a clamping block 11, a jack 12, a push rod 13, a spring 14 and a through hole 15, wherein the hexagonal hole 2 axially penetrating through the anti-dismantling post 1 is formed at the center position of the upper portion of the anti-dismantling post 1, the hexagonal screw head 3 is arranged in the hexagonal hole 2, the hexagonal screw head 3 is axially and slidably fitted with the hexagonal hole 2, the flange 4 is fixed to the lower end of the hexagonal screw head 3, the screw rod 5 coaxially arranged with the hexagonal screw head 3 is fixed to the bottom of the flange 4, the first clamping grooves 6 are formed in six outer side walls of the screw head 3, the six first clamping grooves 6 are located at the same horizontal height, the second clamping grooves 7 are formed in six inner side walls of the hexagonal hole 2, the six second clamping grooves 7 are located at the same horizontal height, the upper ends of the second clamping grooves 7 and the upper end of the first clamping groove 6 are located at the same horizontal height, the notches of the second clamping grooves 7 are arranged opposite to the notches of the first clamping groove 6, the upper end of the anti-dismantling column 1 is located right above each second clamping groove 7 and is provided with a mounting hole 8, the lower end of each mounting hole 8 is communicated with the upper end of the second clamping groove 7, each mounting hole 8 is internally provided with a mounting rod 9 in a rotating manner, the upper end of each mounting rod 9 is provided with a screwdriver groove 10, each second clamping groove 7 is internally provided with a fixture block 11, the fixture block 11 is fixedly connected with the lower end of the mounting rod 9, the lower end of the anti-dismantling column 1 is uniformly provided with a plurality of insertion holes 12, each insertion hole 12 is internally provided with a push rod 13 in a sliding manner, and a spring 14 is arranged between the hole bottom of each insertion hole 12 and the upper end of the push rod 13, the upper end of spring 14 and the hole bottom fixed connection of jack 12, the lower extreme of spring 14 and the upper end fixed connection of ejector pin 13, through-hole 15 that runs through flange dish 4 has all been seted up under the upper portion of ring flange 4 is located every jack 12, the lower extreme of ejector pin 13 is worn to establish in through-hole 15, ejector pin 13 and 15 axial sliding fit of through-hole, the cross section of preventing tearing open post 1 is circular, the height of preventing tearing open post 1 is the same with hexagonal spiral shell head 3's height, the cross section of ring flange 4 is circular, the bottom of ring flange 4 is equipped with anti-skidding line, the upper end of fixture block 11 is laminated with the upper portion of second draw-in groove 7 mutually, the lower extreme of ejector pin 13 is equipped with anti-skidding line.

The utility model discloses the working process: when this bolt is screwed up, the lower extreme of ejector pin 13 takes lead with object surface contact, the extrusion of object makes ejector pin 13 retract toward jack 12 in, under the spring action of spring 14, ejector pin 13 top is tight on the object surface, locking effect can be played, when this bolt is dismantled to needs, can insert to twist in screw sword groove 10 with the screwdriver and change installation pole 9, installation pole 9 rotates and drives fixture block 11 and rotate, fixture block 11 rotates between first draw-in groove 6 and second draw-in groove 7, only when each fixture block 11 all deviates from in first draw-in groove 6, just can upwards slide this moment and prevent tearing post 1, make hexagonal spiral shell head 3 deviate from hexagonal hole 1, because hexagonal spiral shell head 3's cross section is regular hexagon, can clip hexagonal spiral shell head 3 with the spanner and dismantle this bolt. Compared with the prior art, can prevent effectively that the bolt is not hard up, prevent effectively that the bolt from being dismantled at will by other people, promote security and reliability that the bolt used, simple structure, convenient to use, facilitate promotion is used.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims (5)

1. The utility model provides a theftproof check bolt which characterized in that: comprises an anti-dismantling column (1), a hexagonal hole (2), a hexagonal screw head (3), a flange plate (4), a screw rod (5), a first clamping groove (6), a second clamping groove (7), a mounting hole (8), a mounting rod (9), a screw thread groove (10), a clamping block (11), an insertion hole (12), a push rod (13), a spring (14) and a through hole (15), wherein the hexagonal hole (2) axially penetrating through the anti-dismantling column (1) is formed in the central position of the upper part of the anti-dismantling column (1), the hexagonal screw head (3) is arranged in the hexagonal hole (2), the hexagonal screw head (3) is axially matched with the hexagonal hole (2) in a sliding manner, the flange plate (4) is fixedly arranged at the lower end of the hexagonal screw head (3), the screw rod (5) coaxially arranged with the hexagonal screw head (3) is fixedly arranged at the bottom of the flange plate (4), and the first clamping grooves (6) are formed in six outer side walls of the hexagonal screw head (3), the six first clamping grooves (6) are located at the same horizontal height, the six inner side walls of the hexagonal hole (2) are respectively provided with a second clamping groove (7), the six second clamping grooves (7) are located at the same horizontal height, the upper end of each second clamping groove (7) and the upper end of each first clamping groove (6) are located at the same horizontal height, the notch of each second clamping groove (7) is just opposite to the notch of each first clamping groove (6), the upper end of each anti-dismantling column (1) is located right above each second clamping groove (7) and is respectively provided with a mounting hole (8), the lower end of each mounting hole (8) is communicated with the upper end of each second clamping groove (7), each mounting hole (8) is internally provided with a mounting rod (9) in a rotatable manner, the upper end of each mounting rod (9) is respectively provided with a screw cutter groove (10), each second clamping groove (7) is internally provided with a clamping block (11), fixture block (11) and the lower extreme fixed connection of installation pole (9), a plurality of jacks (12) have evenly been seted up to the lower extreme of preventing tearing open post (1), every all slidable is equipped with ejector pin (13) in jack (12), be equipped with spring (14) between the hole bottom of jack (12) and the upper end of ejector pin (13), the hole bottom fixed connection of the upper end of spring (14) and jack (12), the lower extreme of spring (14) and the upper end fixed connection of ejector pin (13), through-hole (15) that run through ring flange (4) all are seted up under the upper portion of ring flange (4) is located every jack (12), the lower extreme of ejector pin (13) is worn to establish in through-hole (15), ejector pin (13) and through-hole (15) axial sliding fit.

2. An anti-theft and anti-loosening bolt as defined in claim 1, wherein: the cross section of the anti-dismantling column (1) is circular, and the height of the anti-dismantling column (1) is the same as that of the hexagonal screw head (3).

3. An anti-theft and anti-loosening bolt as defined in claim 1, wherein: the cross section of the flange plate (4) is circular, and anti-skidding lines are arranged at the bottom of the flange plate (4).

4. An anti-theft and anti-loosening bolt as defined in claim 1, wherein: the upper end of the clamping block (11) is attached to the upper part of the second clamping groove (7).

5. An anti-theft lock bolt as defined in any one of claims 1 to 4, characterized in that: the lower end of the ejector rod (13) is provided with anti-skid grains.

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