CN208519041U - A kind of anti-skid screw - Google Patents
A kind of anti-skid screw Download PDFInfo
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- CN208519041U CN208519041U CN201821162984.3U CN201821162984U CN208519041U CN 208519041 U CN208519041 U CN 208519041U CN 201821162984 U CN201821162984 U CN 201821162984U CN 208519041 U CN208519041 U CN 208519041U
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- screw
- groove
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- chimb
- skid
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Abstract
The utility model provides a kind of anti-skid screw, including head of screw and screw pole, the screw pole is equipped with external screw thread, the joint face of the head of screw and the screw pole is equipped with pre-pressing structure, the pre-pressing structure includes the chimb for being looped around the head of screw outer, and the first groove is formed between the chimb and the screw pole.The utility model is provided with the first groove on head of screw, the outer ledge of head of screw is enabled to constitute a chimb, when in use, it after screw-driving, is squeezed mutually between chimb and fixing piece, chimb generates an outside deformation, under the action of itself internal force, so that screw generates a pretightning force, so that the screw thread on the screw thread and fixing piece on screw be enabled to generate a biggish active force from each other, increase its moment of friction, so as to effectively prevent screw from sliding.
Description
Technical field
The utility model relates to air-conditioning technical field, in particular to a kind of anti-skid screw.
Background technique
It the use of screw connection is a kind of more general connection type, with easy to operate, fixed reliable advantage, and
When connecting using screw, in order to avoid screw sliding, plain cushion or elastic cushion will use to improve the pretightning force of screw
It prevents screw from sliding, but carries out anti-skidding meeting in this way so that assembly manipulation complicates, increased production cost.
Utility model content
In view of this, the utility model is directed to a kind of anti-skid screw, with solve current screw itself cannot generate compared with
High pretightning force leads to the problem of easily sliding when its use.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of anti-skid screw, including head of screw and screw pole, the screw pole be equipped with external screw thread, the head of screw with it is described
The joint face of screw pole is equipped with pre-pressing structure, and the pre-pressing structure includes the chimb for being looped around the head of screw outer, described
The first groove is formed between chimb and the screw pole.
Further, the section of the chimb is wedge shape.
Further, the section of first groove is trapezoidal, arc or triangle.
Further, the depth of first groove and the ratio of head thickness are between 1/4 to 3/4.
Further, the second groove is provided on the screw pole end face.
Further, second groove center is equipped with the thimble of outwardly convex.
Further, length of the thimble front end beyond the screw pole end face is between 0mm-2mm.
Further, the section of second groove is arc or trapezoidal.
Further, the ratio of the depth of second groove and the screw column length is between 1/10 to 1/8.
Further, the head of screw upper surface is equipped with stress slot, and the stress slot is flat recess, cross recess or hexagonal
Slot.
Compared with the existing technology, anti-skid screw described in the utility model has the advantage that
The utility model is provided with the first groove on head of screw, enables the outer ledge of head of screw constitute a chimb, makes
Used time after screw-driving, squeezes mutually between chimb and fixing piece, and chimb generates an outside deformation, in itself internal force
Under the action of, so that screw generates a pretightning force, so that the screw thread on the screw thread and fixing piece on screw be enabled to produce from each other
A raw biggish active force, increases its moment of friction, so as to effectively prevent screw from sliding.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is anti-skid screw the schematic diagram of the section structure described in the utility model embodiment；
Fig. 2 is the top view of anti-skid screw described in the utility model embodiment；
Fig. 3 is the mounting structure schematic diagram of anti-skid screw described in the utility model embodiment.
Description of symbols:
1- head of screw, 2- screw pole, the first groove of 3-, 4- chimb, the second groove of 5-, 6- thimble, 7- stress slot.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one
A kind of anti-skid screw, as shown in connection with fig. 1, anti-skid screw include head of screw 1 and screw pole 2, and screw pole 2 is fixed on spiral shell
The center of ailhead 1.1 upper end of head of screw has stress slot 7, and 2 outer wall of screw pole has continuous external screw thread, spanner or screwdriver etc.
Tool can transmit torsion to anti-skid screw by stress slot 7, rotate anti-skid screw, be reliably connected with inner thread piece formation.
Pre-pressing structure is provided on the lower end surface that head of screw 1 connect side with screw pole 2, it is contemplated that structure includes being looped around
The chimb 4 of 1 outer of head of screw forms the first groove 3 between chimb 4 and screw pole 2.This screw is in use, chimb 4 and solid
Determine to squeeze mutually between part, chimb 4 generates an outside deformation, under the action of itself internal force, so that screw generates one
A pretightning force increases so that the screw thread on the screw thread and fixing piece on screw be enabled to generate a biggish active force from each other
Its moment of friction, so as to effectively prevent screw from sliding.
Embodiment two
Anti-skid screw as described in above-described embodiment, the present embodiment are different from place and are, the section of chimb 4 is wedge shape
Structure can further enhance pretightning force.The section of first groove 3 is trapezium structure, is long side in 1 outside of head of screw,
It is short side inside head of screw, while improving screw pretightning force, guarantees the intensity of its chimb 4, avoiding overexerting causes
Chimb 4 damage, be suitable for a variety of assembly environments, have good antiskid effect.
In other embodiments, the section of the first groove 3 can also be arc or triangular structure.The of arcuate structure
One groove 3 can enable the pretightning force of screw be obviously improved, and in assembly, be suitble to high-precision operation, can reach better
Antiskid effect.First groove 3 of triangular structure can improve screw while promoting the chime fastness of screw
Pretightning force, the processing environment not high suitable for assembly precision, reaches expected antiskid effect.
Embodiment three
Anti-skid screw as described in above-described embodiment one, the present embodiment are different from place and are, first groove 3
The accounting of thickness is between 1/4 to 3/4 between depth and head of screw 1.The depth of first groove 3 is defined, can be kept away
Exempt from that the first groove 3 is too deep to cause head of screw excessively fragile, while it is excessively shallow to be also prevented from the first groove 3, cannot effectively provide preload
Power.
Example IV
A kind of anti-skid screw, as shown in connection with fig. 1, anti-skid screw include head of screw 1 and screw pole 2, and screw pole 2 is fixed on spiral shell
The center of ailhead 1.2 outer wall of screw pole has continuous external screw thread.
Pre-pressing structure is provided on the lower end surface that head of screw 1 connect side with screw pole 2, it is contemplated that structure includes being looped around
The chimb 4 of 1 outer of head of screw forms the first groove 3 between chimb 4 and screw pole 2.The section of chimb 4 is wedge structure, the
The section of one groove 3 is trapezium structure.In other embodiments, the section of the first groove 3 can also for arcuate structure or
Triangular structure
The second groove 5 is provided in the top end surface of the screw pole 2, the section of second groove 5 is arcuate structure
Or trapezium structure, in the thimble 6 for being provided centrally with outwardly convex of the second groove 5, the thimble 6 is pyramidal structure, thimble 6
Length of the front end beyond 2 end face of screw pole is between 0mm-2mm, it is ensured that is mounted on the plane of non-aperture in screw
When positioning, avoid Slipped bolt, reduce the difficulty of installation.
Preferably, the ratio of 2 length of depth and screw pole of second groove 5 between 1/10 to 1/8, avoids
Two grooves 5 are too deep to cause screw pole 2 excessively fragile, while being also prevented from that the second groove 5 is excessively shallow, and screw is difficult to pierce plane.
Embodiment five
Anti-skid screw as described above, the present embodiment are different from place and are, as shown in connection with fig. 2, the head of screw 1
Upper surface far from screw pole 2 is set as arc surface, is provided centrally with stress slot 7 in the arc surface, the stress slot 7 is
Flat recess, cross recess or hex slot, slot bottom be flat construction, the tools such as spanner or screwdriver can by stress slot 7 to
Anti-skid screw transmits torsion, rotates anti-skid screw, is reliably connected with inner thread piece formation.
As shown in connection with fig. 3, by the rotation to stress slot 7, the screw pole 2 of screw is fitted into fixing piece, in chimb 4
Continue to carry out stress slot 7 certain rotation after touching the surface of fixing piece, so that chimb 4 is generated certain deformation, enable screw
The pretightning force of generation increases.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of anti-skid screw, which is characterized in that including head of screw (1) and screw pole (2), the screw pole (2) is equipped with outer spiral shell
Line, the joint face of the head of screw (1) and the screw pole (2) are equipped with pre-pressing structure, and the pre-pressing structure includes being looped around
The chimb (4) of head of screw (1) outer, forms the first groove (3) between the chimb (4) and the screw pole (2).
2. anti-skid screw according to claim 1, which is characterized in that the section of the chimb (4) is wedge shape.
3. anti-skid screw according to claim 1, which is characterized in that the section of first groove (3) is trapezoidal, arc
Or triangle.
4. anti-skid screw according to claim 1, which is characterized in that the depth of first groove (3) and the screw
Ratio between head (1) thickness is between 1/4 to 3/4.
5. anti-skid screw according to claim 1 to 4, which is characterized in that be provided on screw pole (2) end face
Second groove (5).
6. anti-skid screw according to claim 5, which is characterized in that the second groove (5) center is equipped with outwardly convex
Thimble (6).
7. anti-skid screw according to claim 6, which is characterized in that thimble (6) front end exceeds the screw pole (2)
The length of end face is between 0mm-2mm.
8. anti-skid screw according to claim 6, which is characterized in that the section of second groove (5) is arc or ladder
Shape.
9. anti-skid screw according to claim 8, which is characterized in that the depth of second groove (5) and the screw
The ratio of column (2) length is between 1/10 to 1/8.
10. anti-skid screw according to claim 9, which is characterized in that head of screw (1) upper surface is equipped with stress slot
(7), the stress slot (7) is flat recess, cross recess or hex slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821162984.3U CN208519041U (en) | 2018-07-23 | 2018-07-23 | A kind of anti-skid screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821162984.3U CN208519041U (en) | 2018-07-23 | 2018-07-23 | A kind of anti-skid screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208519041U true CN208519041U (en) | 2019-02-19 |
Family
ID=65336233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821162984.3U Active CN208519041U (en) | 2018-07-23 | 2018-07-23 | A kind of anti-skid screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208519041U (en) |
-
2018
- 2018-07-23 CN CN201821162984.3U patent/CN208519041U/en active Active
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