CN220816235U - Anti-theft bolt - Google Patents

Abstract

The utility model relates to an anti-theft bolt, which comprises a screw rod section, wherein a circular ring retaining plate is integrally formed at one end of the screw rod section, a through hole penetrating through two ends of the screw rod section is formed in the screw rod section, a supporting piece is arranged in the through hole, an internal thread is integrally formed in the screw rod section, the rotation direction of the internal thread is the same as that of the screw rod section, the supporting piece is positioned at one end of the through hole far away from the circular ring retaining plate, the internal thread is positioned between the supporting piece and the circular ring retaining plate, and an inner hexagonal headless screw rod in threaded fit with the internal thread is arranged in the through hole.

Description

Antitheft bolt

Technical Field

The utility model relates to the technical field of fasteners, in particular to an anti-theft bolt.

Background

Bolts are a type of fastener consisting of a head and a shank, and are commonly used to fasten two items together. The conventional bolt can be conveniently detached through a spanner or a screwdriver, but in some special occasions, the anti-theft bolt is needed to prevent the bolt from being maliciously detached by a person, the structure of the conventional part of the anti-theft bolt is relatively simple, the head of the bolt is changed, the conventional spanner or the screwdriver cannot be used for opening, the conventional part of the anti-theft bolt is easily unscrewed by other specific tools, the anti-theft effect is limited, and the anti-theft bolt with relatively good anti-theft effect is provided by the application.

Disclosure of utility model

The utility model provides an anti-theft bolt with good anti-theft effect, which solves the problems existing in the use process in the prior art.

The technical scheme of the utility model is realized as follows: the utility model provides an antitheft bolt, includes the screw rod section, integrated into one piece has the ring to keep out the board on the one end of screw rod section, set up the through-hole that runs through its both ends on the screw rod section, the screw rod section is equipped with in the through-hole and supports and hold the piece, the screw rod section still integrated into one piece has the internal thread in the through-hole, the direction of rotation of internal thread is the same with the direction of rotation of screw rod section, it is located the through-hole and keeps away from the ring to keep out the one end of board to hold the piece, the internal thread is located to hold between piece and the ring to keep out the board, be equipped with the interior hexagonal no-head screw rod that carries out screw-thread fit with the internal thread in the through-hole, it is used for forming to support to interior hexagonal no-head screw rod to hold.

Preferably, the propping piece is fixed in the through hole in an adhesive or interference fit mode.

Preferably, the outer edge of the circular ring retaining plate is provided with an arc chamfer.

Preferably, the device further comprises a hole cover, wherein the hole cover is used for being plugged into the through hole near one end of the annular retaining plate.

Preferably, a plurality of interference protrusions are arranged on the side wall of the hole cover, and one end of the hole cover abuts against the internal threads.

Preferably, the side wall of the hole cover is also provided with a plurality of easy-deformation grooves.

Preferably, the supporting piece is made of rubber materials, a plurality of limiting clamping grooves are formed in the inner side wall of the position where the supporting piece is located through the through hole, limiting clamping strips which are used for being matched with the limiting clamping strips arranged in the limiting clamping grooves are integrally formed in the outer side wall of the supporting piece, and the middle of the limiting clamping grooves is of a necking structure.

In summary, the beneficial effects of the utility model are as follows:

1. When the utility model is adopted to fix one article on another article, the inner hexagonal headless screw is inserted through the inner hexagonal wrench, the inner hexagonal headless screw is rotated to drive the screw section to rotate for screwing, when the circular ring retaining plate is abutted against the article, the article is fixed, the inner hexagonal headless screw is continuously rotated through the inner hexagonal wrench, at the moment, the screw section can not be driven any more, the inner hexagonal headless screw directly pushes the abutting piece along the inner thread to push the abutting piece out of the through hole, then the inner hexagonal headless screw is also rotated out of the through hole at one side far away from the circular ring retaining plate, at the moment, the screw section can not be easily rotated out, and thus a better anti-theft effect is achieved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the present utility model with the hole cover removed;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 2 in the direction A-A;

FIG. 4 is a schematic view of the present utility model with the abutment and the internal hexagonal headless screw removed;

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a schematic view of the cross-sectional structure of FIG. 5 in the direction B-B;

FIG. 7 is a schematic diagram of an explosion of the structure of the present utility model;

FIG. 8 is a schematic view of the structure of the screw section of the present utility model;

FIG. 9 is a schematic view of the structure of the utility model after the article A and the article B are fixed but without taking out the inner hexagonal endless screw and the abutting piece;

Fig. 10 is a schematic structural view of the utility model after fixing the article a and the article B, taking out the hexagonal endless screw and the abutting piece and plugging the hole cover.

In the figure: 1. a screw section; 11. a circular ring retaining plate; 12. a through hole; 13. an internal thread; 111. arc chamfering; 14. a limit clamping groove; 2. a holding member; 21. limiting clamping strips; 3. an inner hexagonal headless screw; 4. a hole cover; 41. interference against the protrusions; 42. easy deformation slotting; 5. an article A; 51. perforating; 6. an article B; 61. and (3) a threaded hole.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 10 of the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

As shown in fig. 1 to 7, the utility model discloses an anti-theft bolt, which comprises a screw section 1, wherein one end of the screw section 1 is integrally formed with a circular ring retaining plate 11, a through hole 12 penetrating through two ends of the screw section 1 is formed in the screw section 1, a supporting piece 2 is arranged in the through hole 12, in addition, an internal thread 13 is integrally formed in the screw section 1, the rotation direction of the internal thread 13 is the same as the rotation direction of the thread of the screw section 1, wherein the supporting piece 2 is positioned at one end of the through hole 12 far away from the circular ring retaining plate 11, the internal thread 13 is positioned between the supporting piece 2 and the circular ring retaining plate 11, an internal hexagonal headless screw 3 in threaded fit with the internal thread 13 is arranged in the through hole 12, the supporting piece 2 is used for forming supporting and holding the internal hexagonal headless screw 3, and the torque required for driving the screw section 1 to be screwed on or the threaded hole by the internal hexagonal headless screw 3 is less than the torque required for driving the internal hexagonal headless screw 3 to push the supporting piece 2 to move on the internal thread 13.

In the use of the present utility model, as shown in fig. 9, the article A5 has the through hole 51 and the article B6 has the threaded hole 61, when the article A5 needs to be fixed to the article B6, the through hole 51 of the article A5 is aligned with the threaded hole 61 of the article B6, then the screw section 1 is inserted into the through hole 51 and aligned with the threaded hole 61, then the hexagonal headless screw 3 is inserted by a socket wrench, the hexagonal headless screw 3 is rotated, since the rotation direction of the internal thread 13 is the same as the rotation direction of the screw section 1, the screw section 1 is to be driven to enter the threaded hole 61, and the hexagonal headless screw 3 is also to be driven to move toward the supporting member 2 when being rotated, but since the torque required for the hexagonal headless screw 3 to push the supporting member 2 on the internal thread 13 is greater than the torque required for the hexagonal headless screw 3 to drive the screw section 1 to screw tightly screw on the threaded hole 61, therefore, when the inner hexagonal wrench drives the inner hexagonal headless screw 3, the screw section 1 is driven to screw in the threaded hole 61, when the circular ring retaining plate 11 abuts against the front side of the article A5, the fixing of the article A5 and the article B6 is completed, the inner hexagonal headless screw 3 is continuously rotated through the inner hexagonal wrench, at this time, the screw section 1 cannot be driven any more, the inner hexagonal headless screw 3 must directly push the abutting piece 2 along the inner thread 13, the abutting piece 2 is pushed out of the through hole 12, then the inner hexagonal headless screw 3 is also rotated out of the through hole 12 far away from one side of the circular ring retaining plate 11, at this time, the screw section 1 cannot be easily rotated out, and therefore, a better anti-theft effect is achieved. It should be noted in the context of the present utility model that the rear side of the article B6 preferably has a space for the removal of the abutment 2 and the hexagonal endless screw 3, and that this removal space is preferably not too large, so that it is not convenient for others to operate the screw section 1 with a tool on the rear side of the article B6.

Wherein, the propping piece 2 is fixed in the through hole 12 in an adhesive or interference fit mode, it should be noted that whichever type of placement is adopted for the propping piece 2 to be fixed in the through hole 12, the torsion required by the inner hexagonal headless screw 3 to push the propping piece 2 to move on the inner thread 13 must be larger than the torsion required by the inner hexagonal headless screw 3 to drive the screw section 1 to screw on the threaded hole, and after the screw section 1 cannot rotate, a user can twist the inner hexagonal headless screw 3 under the condition of slight effort, so that the inner hexagonal headless screw 3 pushes the propping piece 2 to break the fixation between the propping piece 2 and the through hole 12, thereby pushing the propping piece 2 to leave the through hole 12.

In order to prevent the side surfaces of the ring-shaped retaining plate 11 from being gripped by a tool for rotation, an arc-shaped chamfer 111 is provided on the outer edge of the ring-shaped retaining plate 11, and when the ring-shaped retaining plate 11 is attached to an article, it is difficult to grip the side surfaces of the ring-shaped retaining plate 11 by the tool.

In addition, the utility model also comprises a hole cover 4, wherein the hole cover 4 is used for being plugged into the through hole 12 near one end of the annular abutting plate 11, after the article A5 is fixed on the article B6 and the hexagonal headless screw rod 3 and the abutting piece 2 are taken out, the hole cover 4 can be pressed into the through hole 12, as shown in fig. 10, the through hole 12 is plugged, and thus the anti-theft effect is further improved.

Further, as shown in fig. 7, a plurality of interference protrusions 41 are provided on the side wall of the hole cover 4, after the hole cover 4 is pressed into the through hole 12, one end of the hole cover 4 is abutted against the internal thread 13, at this time, the hole cover 4 cannot move inward, the interference protrusions 41 are pressed onto the inner side wall of the through hole 12, so that the hole cover 4 is difficult to be taken out from the through hole 12, a plurality of easy deformation grooves 42 are further provided on the side wall of the hole cover 4, the easy deformation grooves 42 are pressed into the through hole 12 at the interference protrusions 41, so that the hole cover 4 deforms, and the interference protrusions 41 are pressed into the through hole 12.

Example 2:

As shown in fig. 7 and 8, the supporting member 2 is made of rubber material, the through hole 12 is provided with a plurality of limit clamping grooves 14 on the inner side wall of the position where the supporting member 2 is located, the outer side wall of the supporting member 2 is integrally formed with limit clamping bars 21 for being matched with the inside of the limit clamping grooves 14, wherein the middle part of the limit clamping grooves 14 is in a necking structure, in this embodiment, the supporting member 2 is not required to be fixed in the through hole 12 in an adhesive manner, the supporting member 2 is fixed in the through hole 12 in a manner of being matched with the limit clamping grooves 14 through the limit clamping bars 21, when the inner hexagonal headless screw 3 pushes the supporting member 2, the limit clamping bars 21 are required to overcome the necking structure in the middle of the limit clamping grooves 14, so that the supporting member 2 can be pushed out of the through hole 12, and likewise, the torque required by the inner hexagonal headless screw 3 to push the supporting member 2 on the inner thread 13 is necessarily greater than the torque required by the inner hexagonal headless screw 3 to drive the screw section 1 to be screwed on the threaded hole, the supporting member 2 can be repeatedly used, and the supporting member 2 can be assembled with other screw sections 1 without being screwed with the other screw sections 1.

Also, the terms pointed out by the present utility model are as follows: the directional or positional relationships indicated by the terms "front", "rear", "vertical", "horizontal", etc., are based on the directional or positional relationships shown in the drawings, are merely for convenience in describing the utility model and to simplify the description, and are not indicative or implying that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed to limit the scope of the utility model.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (7)

1. An antitheft bolt, includes screw rod section, its characterized in that: the screw rod section is provided with a through hole penetrating through two ends of the screw rod section, the screw rod section is internally provided with a supporting piece, the screw rod section is internally provided with an internal thread, the internal thread is integrally formed in the through hole, the rotation direction of the internal thread is identical to that of the screw rod section, the supporting piece is positioned at one end of the through hole away from the circular ring supporting plate, the internal thread is positioned between the supporting piece and the circular ring supporting plate, the through hole is internally provided with an internal hexagonal headless screw rod in threaded fit with the internal thread, and the supporting piece is used for supporting the internal hexagonal headless screw rod.

2. An antitheft bolt according to claim 1, characterized in that: the propping piece is fixed in the through hole in an adhesive or interference fit mode.

3. An antitheft bolt according to claim 2, characterized in that: and an arc chamfer is arranged on the outer edge of the circular ring retaining plate.

4. An antitheft bolt according to claim 1, characterized in that: the device also comprises a hole cover, wherein the hole cover is used for being plugged into a through hole near one end of the annular retaining plate.

5. An antitheft bolt according to claim 4, characterized in that: the side wall of the hole cover is provided with a plurality of interference protrusions, and one end of the hole cover is abutted against the internal threads.

6. An antitheft bolt according to claim 5, characterized in that: and a plurality of easy-deformation grooves are formed in the side wall of the hole cover.

7. An antitheft bolt according to claim 1, characterized in that: the supporting piece is made of rubber materials, a plurality of limiting clamping grooves are formed in the through holes in the inner side wall of the position where the supporting piece is located, limiting clamping strips which are arranged in the limiting clamping grooves in a matched mode are integrally formed in the outer side wall of the supporting piece, and the middle of each limiting clamping groove is of a necking structure.