CN208793419U - A kind of screw with anti-loosening function - Google Patents
A kind of screw with anti-loosening function Download PDFInfo
- Publication number
- CN208793419U CN208793419U CN201821445619.3U CN201821445619U CN208793419U CN 208793419 U CN208793419 U CN 208793419U CN 201821445619 U CN201821445619 U CN 201821445619U CN 208793419 U CN208793419 U CN 208793419U
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- screw
- screw rod
- thread
- caulking groove
- loosening
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Abstract
The utility model discloses a kind of screw with anti-loosening function, belong to the fine work steel preparation technical field in new material in metal material.Including screw rod, it is connected to the screw cap of the screw tip；The screw rod is equipped with screw thread, and the screw thread is the bottom from screw cap to screw rod along the caulking groove extended clockwise, and the depth of the caulking groove is successively decreased in the direction of the clock.The caulking groove that the screw with anti-loosening function uses depth to successively decrease in the direction of the clock, workpiece inside and around screw is effectively fixed, and the thread form face of the screw thread on screw rod is that the cross section of circular arc thread form face and screw rod is non-circular, it generates enough frictional force and squeezes flexible deformation, prevent screw loosening, guarantee that screw is stably connected with workpiece, anti-loosing effect is good.
Description
Technical field
The utility model relates to the technical field of screw, belong to the fine work steel preparation neck in new material in metal material
A kind of domain, and in particular to screw with anti-loosening function.
Background technique
Screw is the physics and mathematical principle of the inclined-plane circular rotating and frictional force using object, is fastened by easy stages
The tool of each components is the most common fastener, is widely used in all trades and professions.General screw includes screw cap and screw rod,
And mostly metal material is made.Currently, the fixed form of the components in product is mostly that screw locks, but with transport with
And in continuous use process, the phenomenon that fixed mode of screw is in the prevalence of gradually loosening.Now, screw tamper means master
If it is additional that screw is adhered on part by fixed glue after the completion of screw is fixed, but to have cost inclined for this adherency
High and glue curing time-effectiveness, meanwhile, operation is also inconvenient, and anti-loosing effect is bad.
Summary of the invention
In order to overcome the shortcomings in the prior art, the utility model aim is to provide a kind of screw with anti-loosening function,
By the way that clockwise caulking groove is arranged on screw thread, caulking groove clockwise direction depth is successively decreased, and screw is made to have locking functions.
In order to solve the above-mentioned technical problem, the utility model provides a kind of screw with anti-loosening function, including spiral shell
Bar, the screw cap for being connected to the screw tip；
The screw rod is equipped with screw thread, and the screw thread is bottom from screw cap to screw rod along the caulking groove extended clockwise,
The depth of the caulking groove is successively decreased in the direction of the clock.
Preferably, the thread form face of the screw thread is circular arc thread form face.
Wherein, the cross section of the screw rod be it is non-circular, two sides have symmetrical first circular arc, first circular arc it is straight
Diameter is less than the diameter for the second circular arc being connected between two the first circular arcs.
In the preferred embodiment in the utility model, the surface that screw thread is not provided on the screw rod is equipped with hardened layer.
Compared with prior art, the utility model has the beneficial effects that
The caulking groove that the screw with anti-loosening function of the utility model uses depth to successively decrease in the direction of the clock, to screw
Inside and around workpiece effectively fixed, and the thread form face of the screw thread on screw rod be circular arc thread form face and screw rod cross
Section be it is non-circular, generate enough frictional force and squeeze flexible deformation, prevent screw loosening, guarantee that screw and workpiece are stablized and connect
It connects, anti-loosing effect is good.
Detailed description of the invention
It, below will be to institute in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the utility model
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the utility model
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the screw provided by the embodiment of the utility model with anti-loosening function.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Under every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, there is the utility model the screw of anti-loosening function to include screw rod 10, be connected to the screw rod 10
The screw cap 20 at top, the screw rod 10 are equipped with screw thread, and the screw thread is bottom from screw cap to screw rod along prolonging clockwise
The depth of the caulking groove 30 stretched, the caulking groove 30 is successively decreased in the direction of the clock, by caulking groove 30 can be to screw inside and around
Workpiece is effectively fixed, and ensure that effective fixation of the screw of the utility model, the phenomenon that gradually loosening is not present, and is prevented
Loose effect is good.
Wherein, the thread form face of the screw thread on screw rod 10 is that circular arc thread form face keeps certain mistake compared with common screw thread
The amount of being full of is allowed to generate enough frictional force and squeezes flexible deformation, need to have and certain be screwed into torque and could twist with torque is exited
Enter or exit, enhances the shockproof anti-loosening effect of the screw of the utility model.
Also, the cross section of the screw rod 10 of the utility model be it is non-circular, two sides have symmetrical first circular arc, this
The diameter of one circular arc is less than the diameter for the second circular arc being connected between two the first circular arcs, 10 energy of screw rod using the above structure
It generates enough frictional force and squeezes elastic deformation, prevent screw loosening, shockproof anti-loosening effect is good.
In addition, the surface for being not provided with screw thread on the screw rod 10 is equipped with hardened layer, hardened layer is set on screw, is increased
The mechanical strength of screw, prevents screw to be broken in use, further improves the stability of screw.
The caulking groove 30 that the screw with anti-loosening function of the utility model uses depth to successively decrease in the direction of the clock, to spiral shell
Workpiece is effectively fixed inside and around nail, and the thread form face of the screw thread on screw rod 10 is circular arc thread form face and screw rod
10 cross section be it is non-circular, generate enough frictional force and squeeze flexible deformation, prevent screw loosening, guarantee screw 10 and work
Part is stably connected with, and anti-loosing effect is good.
Above disclosed is only several preferred embodiments of the utility model, cannot limit this reality certainly with this
With novel interest field, therefore equivalent variations made according to the claim of the utility model, still belong to the utility model and is covered
Range.
Claims (4)
1. a kind of screw with anti-loosening function, it is characterised in that: including screw rod, be connected to the screw of the screw tip
Cap；
The screw rod is equipped with screw thread, and the screw thread is the bottom from screw cap to screw rod along the caulking groove extended clockwise, described
The depth of caulking groove is successively decreased in the direction of the clock.
2. the screw according to claim 1 with anti-loosening function, it is characterised in that: the thread form face of the screw thread is circle
Arc thread form face.
3. the screw according to claim 1 with anti-loosening function, it is characterised in that: the cross section of the screw rod is non-
Circle, two sides have symmetrical first circular arc, and the diameter of first circular arc is less than the be connected between two the first circular arcs
The diameter of two circular arcs.
4. the screw according to claim 1 with anti-loosening function, it is characterised in that: be not provided with spiral shell on the screw rod
The surface of line is equipped with hardened layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821445619.3U CN208793419U (en) | 2018-09-05 | 2018-09-05 | A kind of screw with anti-loosening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821445619.3U CN208793419U (en) | 2018-09-05 | 2018-09-05 | A kind of screw with anti-loosening function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208793419U true CN208793419U (en) | 2019-04-26 |
Family
ID=66208376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821445619.3U Active CN208793419U (en) | 2018-09-05 | 2018-09-05 | A kind of screw with anti-loosening function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208793419U (en) |
-
2018
- 2018-09-05 CN CN201821445619.3U patent/CN208793419U/en active Active
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