CN220890723U

CN220890723U - Antitheft nut

Info

Publication number: CN220890723U
Application number: CN202322785367.6U
Authority: CN
Inventors: 陈斌; 叶晓煌
Original assignee: Quanzhou Quanzhi Light Industry Machinery Co ltd
Current assignee: Quanzhou Quanzhi Light Industry Machinery Co ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-05-03
Anticipated expiration: 2033-10-17

Abstract

The utility model discloses an anti-theft nut, which relates to the technical field of nuts and aims at solving the problem of artificial theft of a nut fastening part, and the technical scheme is as follows: the utility model provides an antitheft nut, includes the nut body, is provided with the ratchet on the nut body, and the nut body is provided with the casing outward, fixedly on the casing be provided with the connecting rod, rotates on the connecting rod and is provided with the pawl, and the pawl can be transmitted with the ratchet butt, and the activity is provided with control mechanism on the casing, but control mechanism location pawl is provided with annular arch on the casing, and annular arch diameter is less than nut body diameter, through control mechanism to the positioning action of pawl, makes pawl and ratchet's transmission change in order to realize antitheft effect.

Description

Antitheft nut

Technical Field

The utility model discloses an anti-theft nut, and belongs to the technical field of nuts.

Background

Nuts, also known as nuts, are a type of fastening tool that has a hole in the center and threads on the inside, and often mate with a threaded bolt of similar size to secure the associated joint.

After the traditional nut is screwed on the bolt, the anti-theft performance is poor, the nut is extremely easy to be directly screwed out and stolen by other people, and the property loss of public facilities caused by artificial theft of the nut fastening part is countless in China every year.

A new solution is now proposed to improve this situation.

Disclosure of utility model

The utility model aims to solve the problems and provide an antitheft nut.

The anti-theft nut comprises a nut body, wherein a ratchet wheel is arranged on the nut body, a shell is arranged outside the nut body, a connecting rod is fixedly arranged on the shell, a pawl is rotatably arranged on the connecting rod and can be in butt joint transmission with the ratchet wheel, a control mechanism is movably arranged on the shell, the control mechanism can position the pawl, and an annular bulge is arranged on the shell and has a diameter smaller than that of the nut body.

Preferably, the control mechanism comprises a sliding block, the sliding block is connected with the shell through a spring, a sliding groove is formed in one end, close to the pawl, of the sliding block, a protruding block is arranged on the pawl, the sliding groove is sleeved on the protruding block, and the sliding block can drive the pawl to move.

Preferably, the control mechanism further comprises an anti-theft pin, the sliding block is provided with a guide opening, and the anti-theft pin can squeeze the guide opening to enable the sliding block to move to one side far away from the nut body.

Preferably, the sliding block is provided with a through hole for the anti-theft pin to pass through.

Preferably, the anti-theft pin can enter the shell to form a flat surface with the surface of the shell.

Preferably, the width of the shell is more than twice the length of the anti-theft pin.

Preferably, the anti-theft pin is in interference fit with the shell.

Compared with the prior art, the utility model has the beneficial effects that: the control mechanism is used for positioning the pawl, so that the transmission relation between the pawl and the ratchet wheel is changed to realize the anti-theft effect, and the anti-theft nut is different from a disposable anti-theft nut and can be used as a traditional nut.

Drawings

FIG. 1 is a schematic view of an anti-theft nut in an initial state;

FIG. 2 is a schematic view of an anti-theft nut according to the present utility model in an initial state A in a sectional view;

FIG. 3 is a schematic view of an anti-theft nut of the present utility model in an initial state B in cross section;

FIG. 4 is a schematic view of an anti-theft state structure of an anti-theft nut according to the present utility model;

FIG. 5 is a schematic view of an anti-theft state C of an anti-theft nut of the present utility model in cross section;

FIG. 6 is a schematic view of an anti-theft state D of an anti-theft nut according to the present utility model;

FIG. 7 is a schematic view of the end state structure of an anti-theft nut according to the present utility model;

FIG. 8 is a schematic sectional view of a stop state E of the antitheft nut of the utility model;

fig. 9 is a schematic sectional view of a stop state F of the antitheft nut according to the present utility model.

Reference numerals: 1. a nut body; 11. a ratchet wheel; 2. a housing; 20. a control mechanism; 21. an anti-theft pin; 22. a slide block; 221. a chute; 222. a guide opening; 223. a through hole; 23. a spring; 24. a connecting rod; 25. a pawl; 251. a bump; 26. an annular protrusion.

Detailed Description

In the following description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, 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.

As shown in fig. 1-9, an anti-theft nut comprises a nut body 1, a ratchet 11 is arranged on the nut body 1, a shell 2 is arranged outside the nut body 1, a connecting rod 24 is fixedly arranged on the shell 2, a pawl 25 is rotatably arranged on the connecting rod 24, the pawl 25 can be in abutting transmission with the ratchet 11, a control mechanism 20 is movably arranged on the shell 2, the control mechanism 20 can position the pawl 25, an annular bulge 26 is arranged on the shell 2, the diameter of the annular bulge 26 is smaller than that of the nut body 1, the control mechanism 20 comprises a sliding block 22, the sliding block 22 is connected with the shell 2 through a spring 23, a sliding groove 221 is arranged at one end, close to the pawl 25, of the sliding block 22, a lug 251 is arranged on the pawl 25, the sliding groove 221 is sleeved on the lug 251, the sliding block 22 can drive the pawl 25 to move, the control mechanism 20 further comprises an anti-theft pin 21, a guide opening 222 is formed in the sliding block 22, and the anti-theft pin 21 can extrude the guide opening 222 to enable the sliding block 22 to move to one side far away from the nut body 1.

When the nut is in an initial state, the annular bulge 26 is arranged on the shell 2, the diameter of the annular bulge 26 is smaller than that of the nut body 1, so that the nut body 1 cannot directly fall out of the shell 2, at the moment, the anti-theft pin 21 is provided with a part extending out of the surface of the shell 2, the anti-theft pin 21 is in partial abutting connection with the guide opening 222 on the slide block 22, the spring 23 arranged between the slide block 22 and the shell 2 is partially compressed, the spring 23 cannot reset to enable the slide block 22 to displace towards one side close to the nut body 1 due to the partial abutting connection between the anti-theft pin 21 and the slide block 22, the pawl 25 can form unidirectional transmission with the ratchet 11, the nut can only rotate towards one direction, the nut body 1 can be sleeved on a bolt to be fastened, then the shell 2 can be rotated through the transmission relation between the pawl 25 and the ratchet 11, after the locking operation is completed, the pawl 25 and the ratchet 11 are in unidirectional transmission relation, and therefore, if the shell 2 is directly reversed, the pawl 25 rotates around the connecting rod 24 and cannot form abutting connection with the ratchet 11, and thus an anti-theft effect cannot be directly taken out.

As shown in fig. 4-6, after the product is installed, the part of the anti-theft pin 21 extending out of the surface of the shell 2 can be knocked, so that the anti-theft pin 21 moves towards the inside of the shell 2, in the process of moving the anti-theft pin 21 towards the inside of the shell 2, the guide opening 222 on the slide block 22 can be extruded, so that the slide block 22 moves towards one side far away from the nut body 1 and continuously compresses the spring 23 arranged between the slide block 22 and the shell 2, in the process of moving the slide block 22 towards one side far away from the nut body 1, as the convex block 251 is arranged on the pawl 25, the sliding groove 221 is sleeved on the convex block 251, therefore, in the process of moving the slide block 22 towards one side far away from the nut body 1, the convex block 251 slides in the sliding groove 221 along with the movement of the slide block 22, and simultaneously drives the pawl 25 to rotate around the connecting rod 24 towards one side far away from the nut body 1, when the anti-theft pin 21 moves towards one end of the shell 2 to form a flat surface with the shell 2, and in this state, the anti-theft pin 21 is extruded by the slide block 22 to move towards one side far away from the nut body 1, and meanwhile, the pawl 22 drives the pawl 22 to move towards one side far away from the ratchet 11, and the ratchet 11 is not lost in the idle rotation with the normal direction, no matter the anti-theft pin is lost, the anti-theft pin is completely can be rotated, and the anti-theft pin can be completely has no influence with the anti-theft effect, and can be rotated, and can be completely and easily and prevented from the anti-theft effect, and can be rotated, and rotated, no anti-theft effect and can be rotated and lost, and can and has no and has and no anti-theft effect and anti-theft effect.

As shown in fig. 7 to 9, when a user needs to take down the product to repair or replace the fastened component, the user can use an external tool, such as an iron rod, to prop against the antitheft pin 21 forming a flat surface with the shell 2 by using the external tool, then strike the external tool to drive the antitheft pin 21 to move towards the inside of the shell 2, because the slide block 22 is provided with the through hole 223 for the antitheft pin 21 to pass through, when the antitheft pin 21 completely passes through the slide block 22, the antitheft pin 21 does not have a propping action on the slide block 22, at the moment, the spring 23 arranged between the slide block 22 and the shell 2 starts to reset, the slide block 22 is driven to move towards the side close to the nut body 1 in the resetting process of the spring 23, meanwhile, the slide block 22 drives the pawl 25 to rotate towards the side close to the nut body 1, and after the spring 23 is completely reset, the sliding block 22 pushes the pawl 25 to one side close to the ratchet wheel 11, the lug 251 on the pawl 25 is embedded into the linear part in the sliding groove 221, at the moment, the product is in a termination state, the force for pushing the pawl 25 to be in contact with the ratchet wheel 11 is tangential force, and the spring 23 is not extruded to compress the pawl, so that no matter which direction the shell 2 is rotated, the pawl 25 can be in contact with the ratchet wheel 11 to drive, at the moment, the nut body 1 can be normally withdrawn, after the product is taken out, no matter which direction the pawl rotates, the shell 2 and the nut body 1 can form drive, so the product has no essential difference with a common nut, can be used as the common nut to be continuously used for fastening in an area without theft prevention, more use scenes are satisfied, and the practicability is increased.

Since the width of the housing 2 is more than twice the length of the antitheft pin 21, the antitheft pin 21 can be completely immersed into the housing 2 through the slider 22.

Further, the anti-theft pin 21 and the shell 2 are in interference fit, so that the situation that the anti-theft pin 21 falls off due to shaking and the like in the daily use process can be reduced.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides an antitheft nut, includes nut body, its characterized in that: the nut is characterized in that a ratchet wheel is arranged on the nut body, a shell is arranged outside the nut body, a connecting rod is fixedly arranged on the shell, a pawl is rotatably arranged on the connecting rod, the pawl can be in butt transmission with the ratchet wheel, a control mechanism is movably arranged on the shell, the pawl can be positioned by the control mechanism, an annular bulge is arranged on the shell, and the diameter of the annular bulge is smaller than that of the nut body.

2. A theft-proof nut as defined in claim 1, wherein: the control mechanism comprises a sliding block, the sliding block is connected with the shell through a spring, a sliding groove is formed in one end, close to the pawl, of the sliding block, a protruding block is arranged on the pawl, the sliding groove is sleeved on the protruding block, and the sliding block can drive the pawl to move.

3. A theft-proof nut as claimed in claim 2, wherein: the control mechanism further comprises an anti-theft pin, a guide opening is formed in the sliding block, and the anti-theft pin can squeeze the guide opening to enable the sliding block to move to one side far away from the nut body.

4. A theft-proof nut as claimed in claim 2, wherein: the sliding block is provided with a through hole for the anti-theft pin to pass through.

5. A theft-proof nut according to claim 3, characterized in that: the anti-theft pin can enter the shell and form a flat surface with the surface of the shell.

6. A theft-proof nut according to claim 3, characterized in that: the width of the shell is more than twice the length of the anti-theft pin.

7. The antitheft nut of claim 6, wherein: the anti-theft pin is in interference fit with the shell.