CN215861220U

CN215861220U - Non-standard anti-fake screw

Info

Publication number: CN215861220U
Application number: CN202122056347.6U
Authority: CN
Inventors: 陈隆
Original assignee: Chongqing Shengbang Standard Parts Manufacturing Co ltd
Current assignee: Chongqing Shengbang Standard Parts Manufacturing Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-02-18
Anticipated expiration: 2031-08-30

Abstract

The utility model relates to a nonstandard anti-counterfeiting screw, wherein a screw rod is positioned below a screw cap, a gasket is arranged below the screw cap, and the screw cap is positioned at the non-central position of the gasket; the top surface of the nut is provided with a straight groove; a plastic protective cover is arranged on the screw rod; the screw rod comprises a first thread and a second thread; the first threads are positioned at the upper end of the screw rod and close to the nut, the first threads and the second threads are arranged at intervals, and third threads are arranged between adjacent threads at the position below the second threads; the height of the third thread ridge is lower than that of the second thread ridge; and a spike part is arranged at the lower end of the second thread below the screw rod. The improved nut is skillfully improved, the plastic protective cover is arranged on the nut, the top surface of the nut can be protected, the first thread, the second thread and the third thread are designed on the screw rod, the combination of the third screw rod and the second thread is designed at the lower end of the screw rod, so that the screw rod is favorable for turning and meshing, and meanwhile, the notch structure is designed, so that the friction surface can be increased.

Description

Non-standard anti-fake screw

Technical Field

The utility model relates to the technical field of non-standard part processing, in particular to a non-standard anti-counterfeiting screw.

Background

The existing screw usually comprises a nut and a screw rod, a thread is generally arranged below the screw rod, for example, a long rod screw, a gap exists between the thread and the nut, and if the screw is a short rod screw, the gap does not exist, in the prior art, as shown in fig. 1, when the long rod screw is bound, the upper end of the screw rod is lack of the thread, so that the loosening condition is easy to occur, especially the furniture processing is easy to occur, and if common wood of poplar or cedar is loosened more easily; meanwhile, because the workpiece product is simulated, the anti-counterfeiting performance is not considered in the common design, and the utility model is specially applied and created as a technical improvement.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, the present invention provides a non-standard anti-counterfeit screw, which can overcome the above disadvantages.

The utility model relates to a nonstandard anti-counterfeiting screw, wherein a screw rod is positioned below a screw cap, and the top surface of the screw cap is provided with a straight groove; the screw is provided with a plastic protective cover which is made of phenolic plastics, polyurethane plastics and epoxy plastics; an inserting strip is arranged below the plastic protective cover, the inserting strip and the plastic protective cover are of an integrated structure, and the inserting strip is matched with the straight groove; a gasket is arranged below the screw cap and is circular or oval; the nut is positioned at the non-central position of the gasket; the top surface of the gasket is provided with an anti-counterfeiting mark layer; the bottom surface of the gasket is provided with an arc-shaped notch, and a thickened part is arranged at the edge of the bottom surface of the gasket and is increased by 10-15% compared with the thickness of the gasket; the screw rod comprises a first thread and a second thread; the first thread is positioned at the upper end of the screw rod and close to the nut, and an inverted conical surface is arranged below the nut; a plurality of backstop grains are arranged below the gasket; the run of the backstop grain adopts an arc structure, and the backstop grain is provided with a sawtooth structure; the rotation direction of the backstop thread is opposite to that of the first thread; the first threads and the second threads are arranged at intervals, and the distance between the first threads and the second threads accounts for one fourth to one fifth of the whole screw; a third thread is arranged between the adjacent threads at the position below the second thread; the height of the third thread ridge is lower than that of the second thread ridge; the second thread is provided with a notch; the notch extends in the length direction of the screw rod, and the depth from bottom to top is gradually reduced; the notches are at least one group; a spike part is arranged at the lower end of the second thread below the screw rod; the spine portion has a plurality of chamfered surfaces.

Furthermore, the number of the backstop lines is six.

Further, the distance between adjacent teeth of the second threads is 6 mm.

Further, the distance between the adjacent teeth of the second thread and the third thread is 3 mm.

Furthermore, the number of turns of the first threads is 2-3.

Further, the first thread, the second thread or the third thread has an oblique angle of 10-12 degrees with the horizontal line.

Furthermore, the surfaces of the screw cap and the screw rod are provided with a zinc-nickel alloy coating with the thickness of 8 mu m.

Furthermore, a plurality of anti-slip point grains are arranged below the gasket, and the convex height of the anti-slip point grains is about 0.5 mm.

Furthermore, the anti-counterfeiting mark layer comprises an anti-counterfeiting information layer and a transparent layer, the anti-counterfeiting information layer is provided with product two-dimensional code information and is provided with a laser anti-counterfeiting code, and the transparent layer is a transparent plastic sheet (PVC) which covers the anti-counterfeiting information layer; the anti-counterfeiting information is directly processed on the top surface of the gasket through a marking machine.

The utility model has the advantages that the improvement is ingenious, the plastic protective cover is arranged on the nut, the top surface of the nut can be protected, the gasket is designed below the nut, the gasket and the nut are of an integrated structure, the plugging is increased, the difficulty of backing up the screw is increased due to the adoption of an eccentric design, the first thread, the second thread and the third thread are designed on the screw, the combination of the third screw and the second thread is designed at the lower end of the screw, the turning-in and the meshing are facilitated, meanwhile, the first thread can be locked at the position close to the nut, the improvement has greater advantages compared with the background technology, and the designed backing-stopping thread can play a role in preventing loosening. Meanwhile, the screw in the board scheme has anti-counterfeiting capability.

Drawings

Fig. 1 is a schematic view of a screw structure in the prior art.

FIG. 2 is a schematic view of the structure of the present invention.

Fig. 3 is a schematic structural diagram of the anti-counterfeiting mark layer.

FIG. 4 is a bottom view of the nut.

The figure is as follows: the anti-counterfeiting mark comprises a nut 1, a gasket 2, a transparent layer 21, an anti-counterfeiting information layer 22, a straight groove 3, a screw rod 4, a second thread 5, a notch 6, a spine 7, a third thread 8, a backstop thread 9, a sawtooth structure 10, a thickened part 11, an anti-skidding point thread 12, a first thread 13, a plastic protective cover 14 and an inserting strip 15.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 2-4, the utility model relates to a non-standard anti-counterfeiting screw, which comprises a screw cap 1 and a screw rod 4, wherein the screw rod is positioned below the screw cap, and the top surface of the screw cap is provided with a straight groove 3; a plastic protective cover 14 is arranged on the screw rod; an inserting strip 15 is arranged below the plastic protective cover and matched with the straight groove; a gasket 2 is arranged below the screw cap, and an anti-counterfeiting mark layer is arranged on the top surface of the gasket; the gasket is circular or oval; the nut is positioned at the non-central position of the gasket; the bottom surface of the gasket is provided with an arc-shaped notch 21, and a thickened part 11 is arranged at the edge of the bottom surface of the gasket and is increased by 10-15% compared with the thickness of the gasket; the screw rod comprises a first thread 2 and a second thread 5; the first thread is positioned at the upper end of the screw rod and close to the nut, and an inverted conical surface is arranged below the nut; a plurality of backstop grains 9 are arranged below the gasket; the run of the backstop grain adopts an arc structure, and the backstop grain is provided with a sawtooth structure 10; the rotation direction of the backstop thread is opposite to that of the first thread; the first threads 13 and the second threads are arranged at intervals, and the distance between the first threads and the second threads accounts for one fourth to one fifth of the whole screw; a third thread 8 is arranged between the adjacent threads at the position below the second thread; the height of the third thread ridge is lower than that of the second thread ridge; the second thread is provided with a notch 6; the notch extends in the length direction of the screw rod, and the depth from bottom to top is gradually reduced; meanwhile, a gap structure is designed, so that the friction surface can be increased, particularly when the wood structure is entered, the common situation is easy to extrude, wood textures can be clamped into the gaps, and the gaps are at least one group; a spike part 7 is arranged at the lower end of the second thread below the screw rod; the spine part is provided with a plurality of inclined cutting surfaces; the multiple tangent planes are beneficial to hole turning, a tip 71 is arranged below the spine part, and the length of the tip is more than 5 mm.

As a technical improvement, the number of the backstop grains is six.

As a technical improvement, the distance between adjacent teeth of the second thread is 6 mm.

As a technical improvement, the distance between the adjacent teeth of the second thread and the third thread is 3 mm.

As a technical improvement, the number of turns of the first thread is 2-3.

As a technical improvement, the oblique angle between the first thread, the second thread or the third thread and the horizontal line is 10-12 degrees, the corrosion resistance is high, and the antirust capacity is improved.

As a technical improvement, the surfaces of the screw cap and the screw rod are provided with a zinc-nickel alloy coating with the thickness of 8 mu m.

Furthermore, a plurality of anti-skid point grains 12 are arranged below the gasket, the convex height of the anti-skid point grains is about 0.5mm, and the anti-skid point grains are also provided with a spraying rubber layer.

The anti-counterfeiting mark layer comprises an anti-counterfeiting information layer 22 and a transparent layer 21, wherein two-dimensional code information of a product is arranged on the anti-counterfeiting information layer and is provided with a laser anti-counterfeiting code, and the transparent layer is a transparent plastic sheet (PVC) which covers the anti-counterfeiting information layer; the anti-counterfeiting information is directly processed on the top surface of the gasket through a marking machine.

Claims

1. The utility model provides a nonstandard anti-fake screw, includes nut and screw rod, its characterized in that: the screw is positioned below the screw cap, and the top surface of the screw cap is provided with a straight groove; a plastic protective cover is arranged on the screw rod; an inserting strip is arranged below the plastic protective cover and matched with the straight groove; a gasket is arranged below the screw cap and is circular or oval; the nut is positioned at the non-central position of the gasket; the top surface of the gasket is provided with an anti-counterfeiting mark layer; a thickened part is arranged at the edge of the bottom surface of the gasket; the screw rod comprises a first thread and a second thread; the first thread is positioned at the upper end of the screw rod and close to the nut, and an inverted conical surface is arranged below the nut; a plurality of backstop grains are arranged below the gasket; the run of the backstop grain adopts an arc structure, and the backstop grain is provided with a sawtooth structure; the rotation direction of the backstop thread is opposite to that of the first thread; the first threads and the second threads are arranged at intervals, and the distance between the first threads and the second threads accounts for one fourth to one fifth of the whole screw; a third thread is arranged between the adjacent threads at the position below the second thread; the height of the third thread ridge is lower than that of the second thread ridge; the second thread is provided with a notch; the notch extends in the length direction of the screw rod, and the depth from bottom to top is gradually reduced; the notches are at least one group; a spike part is arranged at the lower end of the second thread below the screw rod; the spine portion has a plurality of chamfered surfaces.

2. The non-standard anti-counterfeiting screw according to claim 1, characterized in that: the number of the backstop lines is six.

3. The non-standard anti-counterfeiting screw according to claim 1, characterized in that: and the distance between adjacent teeth of the second thread is 6 mm.

4. The non-standard anti-counterfeiting screw according to claim 2, characterized in that: and the distance between the adjacent teeth of the second thread and the third thread is 3 mm.

5. The non-standard anti-counterfeiting screw according to claim 1, characterized in that: the number of turns of the first threads is 2-3 turns.

6. The non-standard anti-counterfeiting screw according to claim 1, characterized in that: the first thread or the second thread or the third thread has an oblique angle of 10-12 degrees with the horizontal.

7. The non-standard anti-counterfeiting screw according to claim 1, characterized in that: and zinc-nickel alloy coating layers are arranged on the surfaces of the screw cap and the screw rod, and the thickness of the zinc-nickel alloy coating layers is 8 mu m.

8. The non-standard anti-counterfeiting screw according to claim 1, characterized in that: and a plurality of anti-skid point grains are arranged below the gasket.

9. The non-standard anti-counterfeiting screw according to claim 1, characterized in that: the anti-counterfeiting mark layer comprises an anti-counterfeiting information layer and a transparent layer.