CN203384192U - Anti-slip bolt - Google Patents
Anti-slip bolt Download PDFInfo
- Publication number
- CN203384192U CN203384192U CN201320418605.3U CN201320418605U CN203384192U CN 203384192 U CN203384192 U CN 203384192U CN 201320418605 U CN201320418605 U CN 201320418605U CN 203384192 U CN203384192 U CN 203384192U
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- CN
- China
- Prior art keywords
- cylindrical section
- taper cylindrical
- long strip
- screw
- diameter
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- Expired - Fee Related
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Abstract
The utility model relates to an anti-slip bolt which comprises a bolt head and an axial extension section provided with threads, wherein a conical cylindrical section is arranged between the bolt head and the axial extension section provided with the threads; the diameter of a small end of the conical cylindrical section is equal to that of the axial extension section provided with the threads; the diameter of a larger end of the conical cylindrical section is smaller than that of the bolt head; a plurality of strip-shaped convex teeth are arranged on the circumference surface of the conical cylindrical section; spacing distances exit among the strip-shaped convex teeth; and the tooth depth thickness of each strip-shaped convex tooth increases gradually form the small end to the large end of the conical cylindrical section. According to the anti-slip bolt, the plurality of the strip-shaped convex teeth are arranged on the circumference surface of the conical cylindrical section, so that anti-slip and pre-tightening force enhancement effects are realized; and the assembly is simple, the working efficiency is improved, and the cost is saved.
Description
Technical field
The utility model relates to a kind of screw, particularly a kind of anti-skid screw.
Background technique
Screw is as one of the most frequently used link, and its Main Function is that two connected pieces are fastenedly connected.Existing screw is when being fastenedly connected connected piece, and due to anti-skid structure not being set on screw, this adopts packing ring (as plain washer or elastic washer) to carry out anti-skidding with regard to needs.Yet it is anti-skidding that screw adopts this mode to carry out, not only assembling is complicated, reduced working efficiency, and expense is higher, has increased cost.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of anti-skid screw is provided, and it arranges some long strip double wedges by the circumferential surface at the taper cylindrical section, reached effect anti-skidding and the increase pretightening force, and assembling is simple, has improved working efficiency, has saved cost.
The technical solution of the utility model is: a kind of anti-skid screw, anti-skid screw comprises screw head and establishes the threaded section of extending axially, described screw head and establishing between the threaded section of extending axially as the taper cylindrical section, described taper cylindrical section end diameter is with to establish the threaded section of extending axially diameter identical, taper cylindrical section Outside diameter is less than screw head diameter, the circumferential surface of taper cylindrical section is provided with some long strip double wedges, between each long strip double wedge, span is arranged, the tooth depth thickness of each long strip double wedge from the small end of taper cylindrical section to large end progressive additive.
Described screw head is provided with cross recess or straight groove.
The tooth depth thickness of each long strip double wedge is 0.1mm by the minimum value h1 to large end progressive additive from the small end of taper cylindrical section, and maximum value h2 is 0.5mm.
Adopt technique scheme: because screw head of the present utility model is the taper cylindrical section with establishing between the threaded section of extending axially, described taper cylindrical section end diameter is with to establish the threaded section of extending axially diameter identical, taper cylindrical section Outside diameter is less than screw head diameter, make like this screw can better match with tapped hole by the taper cylindrical section in use, and can play by the taper cylindrical section effect of guide-localization.Circumferential surface due to the taper cylindrical section is provided with some long strip double wedges simultaneously, between each long strip double wedge, span is arranged, the tooth depth thickness of each long strip double wedge to large end progressive additive, has reached like this effect anti-skidding and the increase pretightening force from the small end of taper cylindrical section.
Because screw head is provided with cross recess or straight groove, conveniently with corresponding screw-driver, be used in conjunction with.
Because the tooth depth thickness of each long strip double wedge is 0.1mm by the minimum value h1 to large end progressive additive from the small end of taper cylindrical section, maximum value h2 is 0.5mm, has further improved skidproof effect and has increased pretightening force.
The utility model anti-skid screw, by being arranged on screw head and establishing taper cylindrical section between the threaded section of extending axially and some long strip double wedges that taper cylindrical section circumferential surface is provided with, reached effect anti-skidding and the increase pretightening force, this anti-skid screw processing is easy simultaneously, assembling is simple, improved working efficiency, saved cost, used reliable.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
The A that Fig. 2 is Fig. 1 is to schematic diagram;
Fig. 3 is a kind of embodiment of the present utility model;
The structural representation of the long strip double wedge that Fig. 4 is taper cylindrical section of the present utility model.
In accompanying drawing, 1 is screw head, and 1a is cross recess, and 1b is straight groove, and 2 is the section of extending axially, and 3 is the taper cylindrical section, and 4 is the long strip double wedge.
Embodiment
Referring to Fig. 1 to Fig. 4, a kind of embodiment of anti-skid screw, anti-skid screw comprises screw head 1 and establishes the threaded section of extending axially 2, described screw head 1 is provided with cross recess 1a or straight groove 1b, conveniently with corresponding screw-driver, be used in conjunction with, the screw head 1 of the present embodiment is provided with cross recess 1a.Certainly, for convenience of being used in conjunction with from different screw-drivers, the cross recess 1a on screw head 1 also can be made as straight groove 1b, as shown in Figure 3.Described screw head 1 and establishing between the threaded section of extending axially 2 as taper cylindrical section 3, described taper cylindrical section 3 end diameters are with to establish the threaded section of extending axially 2 diameters identical, taper cylindrical section 3 Outside diameters are less than screw head 1 diameter, not only can better with tapped hole, match by taper cylindrical section 3 is set, and can play the effect of guide-localization.The circumferential surface of taper cylindrical section 3 is provided with some long strip double wedges 4, between each long strip double wedge 4, span is arranged, the tooth depth thickness of each long strip double wedge 4 from the small end of taper cylindrical section 3 to large end progressive additive, the tooth depth thickness of each long strip double wedge 4 is 0.1mm by the minimum value h1 to large end progressive additive from the small end of taper cylindrical section 3, maximum value h2 is 0.5mm, has reached like this effect anti-skidding and the increase pretightening force.
Above embodiment preferred embodiment is described the utility model; not scope of the present utility model is limited; relate under the prerequisite of spirit not breaking away from the utility model, various distortion that those of ordinary skill in the art makes the technical solution of the utility model and improving all fall in the definite protection domain of claim of the present utility model.
Claims (3)
1. an anti-skid screw, anti-skid screw comprises screw head (1) and establishes the threaded section of extending axially (2), it is characterized in that: described screw head (1) and establishing between the threaded section of extending axially (2) as taper cylindrical section (3), described taper cylindrical section (3) end diameter is with to establish the threaded section of extending axially (2) diameter identical, taper cylindrical section (3) Outside diameter is less than screw head (1) diameter, the circumferential surface of taper cylindrical section (3) is provided with some long strip double wedges (4), between each long strip double wedge (4), span is arranged, the tooth depth thickness of each long strip double wedge (4) from the small end of taper cylindrical section (3) to large end progressive additive.
2. anti-skid screw according to claim 1, it is characterized in that: described screw head (1) is provided with cross recess (1a) or straight groove (1b).
3. anti-skid screw according to claim 1, it is characterized in that: the tooth depth thickness of each long strip double wedge (4) is 0.1mm by the minimum value h1 to large end progressive additive from the small end of taper cylindrical section (3), and maximum value h2 is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320418605.3U CN203384192U (en) | 2013-07-15 | 2013-07-15 | Anti-slip bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320418605.3U CN203384192U (en) | 2013-07-15 | 2013-07-15 | Anti-slip bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384192U true CN203384192U (en) | 2014-01-08 |
Family
ID=49872689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320418605.3U Expired - Fee Related CN203384192U (en) | 2013-07-15 | 2013-07-15 | Anti-slip bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384192U (en) |
-
2013
- 2013-07-15 CN CN201320418605.3U patent/CN203384192U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20150715 |
|
| EXPY | Termination of patent right or utility model |