Anti-theft mechanism and bolt thereof

Abstract

The utility model discloses an anti-theft mechanism and a bolt thereof, and relates to the technical field of functional bolts, the anti-theft mechanism comprises a knob head, an anti-screwing mechanism and an anti-skid mechanism, the anti-screwing mechanism is arranged on the outer wall of the knob head, the anti-screwing mechanism is used for preventing a screwdriver from driving the knob head to rotate anticlockwise, and the anti-skid mechanism is arranged at the bottom end of the knob head. Through the arrangement of the anti-screwing mechanism, the screwdriver can only drive the knob head to rotate clockwise, so that the screw rod rotates clockwise to be meshed with the threaded hole, and when the screwdriver rotates anticlockwise, the screwdriver slips under the matching of the anti-screwing mechanism, so that the knob head cannot rotate anticlockwise; therefore, the bolt cannot be screwed off anticlockwise through a screwdriver after being installed, and the bolt can achieve the anti-theft effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to functional bolt field, especially a kind of anti-theft mechanism and bolt thereof. BACKGROUND

[0002] In modern industry and daily life, as a common fastener, bolt is widely used in machinery, building, transportation and other fields.

[0003] However, with the progress of technology and wide application, the anti-theft problem of bolt gradually highlights, traditional bolt structure is simple, usually only rely on the meshing of thread to realize fastening, this makes it particularly vulnerable when facing malicious disassembly or theft, especially in some public places or high-value equipment, the anti-theft performance of bolt is directly related to the safety of equipment and the guarantee of property, therefore, we propose a kind of anti-theft mechanism and bolt thereof. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of anti-theft mechanism and bolt thereof to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an anti-theft mechanism, comprising:

[0006] Knob head;

[0007] Anti-twist mechanism, the anti-twist mechanism is arranged on the outer wall of knob head, and the anti-twist mechanism is used to prevent screwdriver from driving knob head to rotate counterclockwise;

[0008] Anti-slip mechanism, the anti-slip mechanism is arranged at the bottom end of knob head.

[0009] Preferably, the anti-twist mechanism comprises:

[0010] Center hole, the center hole is opened in the top end of knob head;

[0011] Slot, the slot is annular array and is opened in the inner wall of center hole;

[0012] Vertical surface, the vertical surface is opened in one side of the inner wall of slot;

[0013] Inclined arc surface, the inclined arc surface is opened in the other side of the inner wall of slot.

[0014] Preferably, the knob head is arranged in hemispherical shape.

[0015] Preferably, the anti-slip mechanism comprises anti-slip protrusion, and the anti-slip protrusion is annular array and is arranged at the bottom end of knob head.

[0016] The utility model further provides a kind of bolt, comprising:

[0017] The anti-theft mechanism according to any one of the above;

[0018] A screw rod is fixedly connected to the bottom end of the knob head.

[0019] A reinforcing mechanism is arranged on the outer wall of the knob head.

[0020] Preferably, the reinforcing mechanism comprises:

[0021] A clamping plate is arranged on the outer wall of the screw rod at intervals.

[0022] A slot is arranged on the outer wall of the screw rod at intervals, and a rotating mechanism and an extruding mechanism are arranged between the clamping plate and the slot.

[0023] Preferably, the rotating mechanism comprises:

[0024] A fixed shaft is fixedly connected to the inner wall of the slot.

[0025] A rotating hole is arranged on the end of the clamping plate, and the outer wall of the fixed shaft is rotatably connected to the inner wall of the rotating hole.

[0026] Preferably, the extruding mechanism comprises an extruding spring, one end of the extruding spring is connected to the inner wall of the slot, and the other end of the extruding spring is connected to the outer wall of the clamping plate.

[0027] The technical effects and advantages of the utility model are as follows:

[0028] The setting of the anti-twisting mechanism makes the screwdriver only drive the knob head to rotate clockwise, so that the screw rod rotates clockwise and engages with the threaded hole, when the screwdriver rotates counterclockwise, the screwdriver will slip under the cooperation of the anti-twisting mechanism, that is, the knob head cannot rotate counterclockwise, so that the bolt cannot be unscrewed counterclockwise by the screwdriver after installation, and the bolt can play a theft-proof effect. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 It is a bolt inverted three-dimensional structure schematic view of the utility model.

[0030] Fig. 2 It is a knob head three-dimensional structure schematic view of the utility model.

[0031] Fig. 3 It is a screw rod partial sectional view structure schematic view of the utility model.

[0032] In the figure: 101, knob head; 201, center hole; 202, slot; 203, vertical surface; 204, inclined arc surface; 301, anti-skid convex; 401, screw rod; 501, clamping plate; 601, slot; 602, rotating hole; 603, fixed shaft; 701, extrusion spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be apparently 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. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] The utility model provides a kind of anti-theft mechanism as shown in Figs. 1-3 The utility model discloses a kind of anti-theft mechanism, including knob head 101, anti-twist mechanism and antiskid mechanism, anti-twist mechanism is set to the outer wall of knob head 101, anti-twist mechanism is used to prevent screwdriver to drive knob head 101 counterclockwise rotation, antiskid mechanism is set to the bottom end of knob head 101, by the setting of anti-twist mechanism, screwdriver can only drive knob head 101 to carry out clockwise rotation, to make screw rod 401 clockwise rotation and thread hole engagement, when screwdriver counterclockwise rotation, under the cooperation of anti-twist mechanism, screwdriver will slip, i.e. it can make knob head 101 cannot carry out counterclockwise rotation, to make bolt can not be twisted down by screwdriver counterclockwise after installation, so that bolt can play anti-theft effect.

[0035] Among them, anti-twist mechanism includes center hole 201, slot 202, vertical surface 203 and inclined arc surface 204, center hole 201 is set to the top end of knob head 101, slot 202 is set to the inner wall of center hole 201 in annular array, vertical surface 203 is set to one side of slot 202 inner wall, inclined arc surface 204 is set to the other side of slot 202 inner wall, when screwdriver is inserted into center hole 201 and slot 202, screwdriver clockwise rotation, by the clamping of vertical surface 203, it can be stabilized that screwdriver clockwise rotation can drive knob head 101 to carry out clockwise rotation, and when screwdriver counterclockwise rotation, due to the inclined surface of inclined arc surface 204 is guided, so that screwdriver will directly slip from center hole 201 and slot 202 in the process of counterclockwise rotation, cannot drive knob head 101 to rotate.

[0036] Among them, knob head 101 is set to hemispherical, hemispherical knob head 101 makes wrench and vise grip and other tools cannot clamp knob head 101, so that bolt can prevent more tools to disassemble, further improve the anti-theft effect of bolt.

[0037] The anti-skid mechanism comprises anti-skid protrusions 301 arranged in an annular array on the bottom end of the knob head 101, when the bolt is fixed, the bottom end of the knob head 101 abuts against the mounting surface, and the friction between the anti-skid protrusions 301 and the mounting surface is increased, so that the bolt is not prone to loosening, thereby improving the stability of the bolt installation.

[0038] The utility model discloses still provide a kind of bolt, including the anti-theft mechanism of any one of above, screw rod 401 and reinforcing mechanism, screw rod 401 is fixedly connected to the bottom end of knob head 101, reinforcing mechanism is arranged on the outer wall of knob head 101, by screw rod 401 and knob head 101 connection, screw rod 401 is inserted into threaded hole, then by knob head 101 clockwise twist, it can drive screw rod 401 clockwise and mesh with the inner wall of threaded hole, to fix the bolt.

[0039] The reinforcing mechanism comprises a clamping plate 501 and a slot 601, the clamping plate 501 is arranged on the outer wall of the screw rod 401 in intervals, the slot 601 is arranged on the outer wall of the screw rod 401 in intervals, a rotating mechanism is arranged between the clamping plate 501 and the slot 601, an extrusion mechanism is arranged between the clamping plate 501 and the slot 601, the rotating mechanism comprises a rotating hole 602 and a fixed shaft 603, the fixed shaft 603 is fixedly connected to the inner wall of the slot 601, the rotating hole 602 is arranged on the end of the clamping plate 501, the outer wall of the fixed shaft 603 is rotatably connected to the inner wall of the rotating hole 602, the extrusion mechanism comprises an extrusion spring 701, one end of the extrusion spring 701 is connected to the inner wall of the slot 601, the other end of the extrusion spring 701 is connected to the outer wall of the clamping plate 501, when the screw rod 401 is screwed into the threaded hole, the hole wall of the threaded hole will extrude the clamping plate 501, so that the clamping plate 501 will rotate around the fixed shaft 603, so that the fixed shaft 603 is clamped into the slot 601, so that the clamping plate 501 will not block the insertion of the screw rod 401, and when the clamping plate 501 moves into the slot 601, the clamping plate 501 will also extrude the extrusion spring 701, so that the extrusion spring 701 is compressed, until the bolt is fixed, through the elastic action of the extrusion spring 701, the clamping plate 501 is extruded by the extrusion spring 701, at this time, the clamping plate 501 will abut against the thread groove of the inner wall of the threaded hole, so that when the screw rod 401 wants to be unscrewed from the threaded hole, the clamping plate 501 will be clamped, so that the screw rod 401 cannot be unscrewed, further improving the stability of the fixed bolt, ensuring the anti-theft performance of the bolt, the rotating point of the clamping plate 501 is located inside the slot 601, so that when the clamping plate 501 is extruded by the inner wall of the threaded hole, the clamping plate 501 can be completely immersed in the slot 601, so that the clamping plate 501 will not affect the screwing of the screw rod 401 into the threaded hole.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An anti-theft mechanism, characterized by, The utility model relates to a kind of anti-theft mechanism of screwdriver, including: Knob head (101); Anti-twist mechanism, the outer wall of knob head (101) is provided with the anti-twist mechanism, and the anti-twist mechanism is used to prevent screwdriver from driving knob head (101) counterclockwise rotation; Anti-skid mechanism, the bottom end of knob head (101) is provided with the anti-skid mechanism.

2. An anti-theft mechanism according to claim 1, characterized in that The anti-twist mechanism includes: Center hole (201), the top end of knob head (101) is opened in the center hole (201); Slot (202), the inner wall of center hole (201) is opened in the slot (202) in annular array; Vertical surface (203), one side of the inner wall of slot (202) is opened in vertical surface (203); Oblique arc surface (204), the other side of the inner wall of slot (202) is opened in oblique arc surface (204)。 3. The anti-theft mechanism according to claim 1, wherein The knob head (101) is arranged in hemispherical shape.

4. The anti-theft mechanism according to claim 1, wherein The anti-skid mechanism includes anti-skid protrusion (301), and the bottom end of knob head (101) is arranged in annular array in anti-skid protrusion (301).

5. A bolt characterized in that, Including: The anti-theft mechanism of any one of the above claims 1-4; Screw rod (401), the bottom end of knob head (101) is fixedly connected with screw rod (401); Reinforcing mechanism, the outer wall of knob head (101) is provided with the reinforcing mechanism.

6. A bolt according to claim 5, wherein The reinforcing mechanism includes: Clamping plate (501), the outer wall of screw rod (401) is arranged in clamping plate (501) interval; Slot (601), the outer wall of screw rod (401) is opened in slot (601) interval, and rotating mechanism is arranged between clamping plate (501) and slot (601), and extrusion mechanism is arranged between clamping plate (501) and slot (601).

7. A bolt according to claim 6, wherein The rotating mechanism includes: Fixed shaft (603), the inner wall of slot (601) is fixedly connected with fixed shaft (603); Rotary hole (602), the end of clamping plate (501) is opened in rotary hole (602), and the outer wall of fixed shaft (603) is rotatably connected with the inner wall of rotary hole (602).

8. A bolt according to claim 6, wherein The extrusion mechanism includes extrusion spring (701), one end of extrusion spring (701) is connected with the inner wall of slot (601), and the other end of extrusion spring (701) is connected with the outer wall of clamping plate (501).

Images