CN205478788U - Novel improve self tapping locking screw of structure - Google Patents
Novel improve self tapping locking screw of structure Download PDFInfo
- Publication number
- CN205478788U CN205478788U CN201521101023.8U CN201521101023U CN205478788U CN 205478788 U CN205478788 U CN 205478788U CN 201521101023 U CN201521101023 U CN 201521101023U CN 205478788 U CN205478788 U CN 205478788U
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- tapping
- self
- improved structure
- setting
- threaded rod
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Abstract
The utility model provides a novel improve self tapping locking screw of structure, including last centrum, threaded rod, lower centrum, the self tapping is terminal, the setting up piece, and six terrace with edges, the sphere body, the cross recess, cutting edge and spring washer, last centrum connect between threaded rod and setting up piece, lower centrum set up in the threaded rod lower part, the terminal tip that sets up centrum under of self tapping, six terrace with edge lower parts set up the setting up piece, the sphere body set up the upper end at six terrace with edges, the cross recess setting at the center of the sphere body, cutting edge setting centrum under. The utility model discloses spring washer, the setting of strengthening layer and threaded rod is favorable to improving drilling intensity, enlarges application scope, increases the pretightning force, and is prevent to receive vibrations and not hard up, operation convenient to use, be convenient for marketing and application.
Description
Technical field
This utility model belongs to screw technique field, particularly relates to the self-tapping lock screw of a kind of novel improved structure.
Background technology
Self-tapping lock screw (being commonly called as triangle pole bolt) has minimizing and fastens man-hour, has the features such as stronger locking and locking functions, is widely used to automobile, motorcycle field at present.Having entered since 21 century, due to international resource and energy scarcity, lightweight, intensive, energy-saving are the developing direction that the vehicles such as future automobile are important.Therefore, the vehicle indispensable bolt-connections of assembling such as automobile certainly will pursue more reasonably tightening technology.Self-tapping lock screw (being commonly called as triangle pole bolt) has minimizing and fastens man-hour, has the features such as stronger locking and locking functions, is widely used to automobile, motorcycle field at present.General bolt fastening needs screw thread is pre-machined out on fastener or uses nut, and self-tapping lock screw, its threaded portion cross section is that Rhizoma Sparganii is circular, form of thread is with the most identical, but its effective diameter is big compared with regular screw threads, it is equipped with the tapered guiding portion of screw front end, screw is screwed into mode with common, female thread can be squeezed out on the prefabricated unthreaded hole of the body with plastic deformation ability, thus realize the connection having interference, this kind of existing locking functions of screw, can remove again the program of prefabricated screw on body from, is all good new varieties of technology, economy.
China Patent Publication No. is CN 201843879 U, entitled a kind of tapping screw of innovation and creation, include the body of screw and be positioned at the head at body of screw top, it is provided with screw thread on the outer surface of the body of screw, it is characterized in that: the side being positioned at the body of screw of described head, being provided with anti-slop serrations on its side, the periphery with body of screw connecting portion of described head is set to cavity, and the thread root on the body of screw extends to cavity.But existing tapping screw also exists that drilling intensity is low, range is less, and pretightning force is not enough, easily occurs coming off, and function singleness operates with problem just.
Therefore, the self-tapping lock screw inventing a kind of novel improved structure seems the most necessary.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides the self-tapping lock screw of a kind of novel improved structure, and to solve existing tapping screw, to there is drilling intensity low, range is less, and pretightning force is not enough, easily occurs coming off, function singleness, operates with problem just.The self-tapping lock screw of a kind of novel improved structure, including upper vertebral body, threaded rod, hypocentrum, self tapping end, setting-up piece, six terrace with edges, spherical surface body, cross recess, cutting edge and elastomeric pad, described upper vertebral body is connected between threaded rod and setting-up piece；Described hypocentrum is arranged on threaded rod bottom；Described self tapping end is arranged on the end of hypocentrum；Six described terrace with edge bottoms arrange setting-up piece；Described spherical surface body is arranged on the upper end of six terrace with edges；Described cross recess is arranged on the center of spherical surface body；Described cutting edge is arranged on hypocentrum；Described elastomeric pad is enclosed within vertebral body, and described elastomeric pad includes that gap, described gap are arranged on the side of elastomeric pad；Described threaded rod includes that strengthening layer, tapping screw thread and the body of rod, described strengthening layer are arranged on tapping screw thread outer surface；Described tapping screw thread is looped around the outside of the body of rod.
The taper pad that described elastomeric pad uses thickness to be 0.5 millimeter to 1.5 millimeters, is conducive to increasing pretension, prevents screw from being shaken and coming off.
Described cutting edge use two thickness be 1 millimeter to 2 millimeters type of carving cone sword, be conducive to improving drilling intensity, expand range, improve work efficiency.
Described self tapping end uses the dovetail configuration of tapering 80 degree to 120 degree；Described self tapping end 4 is provided with cutting edge, is conducive to improving self tapping intensity, prevents from being fractureed by resistance.
The widely-pitched screw thread that described tapping screw thread uses the angle of rifling to be 48 degree, is conducive to improving self tapping drilling intensity, by attacking-boring, squeeze, pressure achieves a fixed connection, improve coupling mechanism force, prevent loose or dislocation.
Described strengthening layer uses the hardness trivalent coloured silk zinc electrodeposited coating more than 450HV, is conducive to improving tapping screw thread intensity, anti-oxidation, increases the service life.
The SWCH22A metallic rod that the described body of rod uses breakdown torque to be 4.5N m, is conducive to improving practicality, prevents moment of torsion excessive and damage.
Six prisms that six described terrace with edges use height to be 3 millimeters to 6 millimeters, favourable employing spanner screws or dismantles, easy to operate convenient, it is simple to connect fastening.
Compared with prior art, this utility model has the advantages that owing to the self-tapping lock screw of a kind of novel improved structure of the present utility model is widely used in screw technique field.Meanwhile, the beneficial effects of the utility model are: 1. the setting of this utility model elastomeric pad, are conducive to increasing pretension, prevent screw from being shaken and coming off.The setting of tapping screw thread the most of the present utility model, is conducive to improving drilling intensity, expands range, improve work efficiency.The setting of strengthening layer the most of the present utility model, is conducive to improving tapping screw thread intensity, anti-oxidation, increases the service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is threaded rod structural representation of the present utility model.
In figure:
The upper vertebral body of 1-, 2-threaded rod, 3-hypocentrum, 4-self tapping end, 5-setting-up piece, 6-six terrace with edge, 7-spherical surface body, 8-cross recess, 9-cutting edge, 91-strengthening layer, 92-tapping screw thread, the 93-body of rod, 10-elastomeric pad, 101-gap.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further:
Embodiment:
As shown in accompanying drawing 1 to accompanying drawing 2
This utility model provides the self-tapping lock screw of a kind of novel improved structure, including upper vertebral body 1, threaded rod 2, hypocentrum 3, self tapping end 4, setting-up piece 5, six terrace with edges 6, spherical surface body 7, cross recess 8, cutting edge 9 and elastomeric pad 10, described upper vertebral body 1 is connected between threaded rod 2 and setting-up piece 5；Described hypocentrum 3 is arranged on threaded rod 2 bottom；Described self tapping end 4 is arranged on the end of hypocentrum 3；Six described terrace with edge 6 bottoms arrange setting-up piece 5；Described spherical surface body 7 is arranged on the upper end of six terrace with edges 6；Described cross recess 8 is arranged on the center of spherical surface body 7；Described cutting edge 9 is arranged on hypocentrum 3；Described elastomeric pad 10 is enclosed within vertebral body 1, and described elastomeric pad 10 includes that gap 101, described gap 101 are arranged on the side of elastomeric pad 10；Described threaded rod 2 includes that strengthening layer 91, tapping screw thread 92 and the body of rod 93, described strengthening layer 91 are arranged on tapping screw thread 92 outer surface；Described tapping screw thread 92 is looped around the outside of the body of rod 93.
The taper pad that described elastomeric pad 10 uses thickness to be 0.5 millimeter to 1.5 millimeters, is conducive to increasing pretension, prevents screw from being shaken and coming off.
Described cutting edge 9 use two thickness be 1 millimeter to 2 millimeters type of carving cone sword, be conducive to improving drilling intensity, expand range, improve work efficiency.
Described self tapping end 4 uses the dovetail configuration of tapering 80 degree to 120 degree；Described self tapping end 4 is provided with cutting edge 9, is conducive to improving self tapping intensity, prevents from being fractureed by resistance.
The widely-pitched screw thread that described tapping screw thread 92 uses the angle of rifling to be 48 degree, be conducive to improve self tapping drilling intensity, by attacking-boring, squeeze, pressure achieve a fixed connection, improve coupling mechanism force, prevent loose or dislocation.
Described strengthening layer 91 uses the trivalent coloured silk zinc electrodeposited coating that hardness is more than 450HV, is conducive to improving tapping screw thread intensity, anti-oxidation, increases the service life.
The SWCH22A metallic rod that the described body of rod 93 uses breakdown torque to be 4.5N m, is conducive to improving practicality, prevents moment of torsion excessive and damage.
Six prisms that six described terrace with edges 6 use height to be 3 millimeters to 6 millimeters, favourable employing spanner screws or dismantles, easy to operate convenient, it is simple to connect fastening.
Operation principle
In this utility model, by Phillips screwdriver end be embedded in spherical surface body 7 center cross recess, through and attacking-bore, squeeze, press and hypocentrum 3 and threaded rod 2 are shot in connector, finally use spanner to be inserted in six terrace with edges and upper vertebral body 1 and elastomeric pad 10 are extruded to connector.
Utilize technical scheme described in the utility model, or those skilled in the art is under the inspiration of technical solutions of the utility model, design similar technical scheme, and reach above-mentioned technique effect, all fall into protection domain of the present utility model.
Claims (8)
1. the self-tapping lock screw of a novel improved structure, it is characterized in that, the self-tapping lock screw of this novel improved structure includes vertebral body (1), threaded rod (2), hypocentrum (3), self tapping end (4), setting-up piece (5), six terrace with edges (6), spherical surface body (7), cross recess (8), cutting edge (9) and elastomeric pad (10), described upper vertebral body (1) is connected between threaded rod (2) and setting-up piece (5)；Described hypocentrum (3) is arranged on threaded rod (2) bottom；Described self tapping end (4) is arranged on the end of hypocentrum (3)；Described six terrace with edges (6) bottom arranges setting-up piece (5)；Described spherical surface body (7) is arranged on the upper end of six terrace with edges (6)；Described cross recess (8) is arranged on the center of spherical surface body (7)；Described cutting edge (9) is arranged on hypocentrum (3)；Described elastomeric pad (10) is enclosed within vertebral body (1), and described elastomeric pad (10) includes that gap (101), described gap (101) are arranged on the side of elastomeric pad (10)；Described threaded rod (2) includes that strengthening layer (91), tapping screw thread (92) and the body of rod (93), described strengthening layer (91) are arranged on tapping screw thread (92) outer surface；Described tapping screw thread (92) is looped around the outside of the body of rod (93).
2. the self-tapping lock screw of novel improved structure as claimed in claim 1, it is characterised in that the taper pad that described elastomeric pad (10) uses thickness to be 0.5 millimeter to 1.5 millimeters.
3. the self-tapping lock screw of novel improved structure as claimed in claim 1, it is characterised in that described type of the carving cone sword that cutting edge (9) two thickness of employing are 1 millimeter to 2 millimeters.
4. the self-tapping lock screw of novel improved structure as claimed in claim 1, it is characterised in that described self tapping end (4) uses the dovetail configuration of tapering 80 degree to 120 degree；Described self tapping end (4) is provided with cutting edge (9).
5. the self-tapping lock screw of novel improved structure as claimed in claim 1, it is characterised in that the widely-pitched screw thread that described tapping screw thread (92) uses the angle of rifling to be 48 degree.
6. the self-tapping lock screw of novel improved structure as claimed in claim 1, it is characterised in that described strengthening layer (91) uses the hardness trivalent coloured silk zinc electrodeposited coating more than 450HV.
7. the self-tapping lock screw of novel improved structure as claimed in claim 1, it is characterised in that the SWCH22A metallic rod that the described body of rod (93) uses breakdown torque to be 4.5N m.
8. the self-tapping lock screw of novel improved structure as claimed in claim 1, it is characterised in that six prisms that described six terrace with edges (6) use height to be 3 millimeters to 6 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521101023.8U CN205478788U (en) | 2015-12-24 | 2015-12-24 | Novel improve self tapping locking screw of structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521101023.8U CN205478788U (en) | 2015-12-24 | 2015-12-24 | Novel improve self tapping locking screw of structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478788U true CN205478788U (en) | 2016-08-17 |
Family
ID=56661578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521101023.8U Expired - Fee Related CN205478788U (en) | 2015-12-24 | 2015-12-24 | Novel improve self tapping locking screw of structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043126A (en) * | 2019-12-27 | 2020-04-21 | 嘉善永固五金制造有限公司 | Difficult not hard up straw rope screw |
-
2015
- 2015-12-24 CN CN201521101023.8U patent/CN205478788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043126A (en) * | 2019-12-27 | 2020-04-21 | 嘉善永固五金制造有限公司 | Difficult not hard up straw rope screw |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20201224 |