CN203146529U - Improved screw structure - Google Patents
Improved screw structure Download PDFInfo
- Publication number
- CN203146529U CN203146529U CN 201320093200 CN201320093200U CN203146529U CN 203146529 U CN203146529 U CN 203146529U CN 201320093200 CN201320093200 CN 201320093200 CN 201320093200 U CN201320093200 U CN 201320093200U CN 203146529 U CN203146529 U CN 203146529U
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- CN
- China
- Prior art keywords
- screw
- head
- plastic thread
- core
- rotation stopping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses an improved screw structure, which comprises a steel screw base part and a plastic thread part, wherein the steel screw base part comprises a screw head part and a screw core part, the tail end part of the screw core part is provided with a screw retaining end, the plastic thread part is clamped between the screw retaining end and the screw head part, the peripheral wall of the screw core part is extended with a rotation stopping protrusion, and the rotation stopping protrusion is embedded in a rotation stopping groove of the plastic thread part. The improved screw structure is screwed with other connecting pieces through the plastic thread part, and the steel screw base part can ensure the integral strength and meet the automatic assembling operation requirement of magnetic adsorption. The screw retaining end of the screw core part is used for axially blocking the plastic thread part and is also used for preventing the plastic thread part from axially falling, and simultaneously, the plastic thread part is prevented from rotating through the matching of the rotation stopping protrusion and the rotation stopping groove. The improved screw structure has the advantages that the strength is high, the automatic assembling operation of magnetic adsorption is realized, the clamping seizure is avoided, and the structure is stable.
Description
Technical field
The utility model relates to the screw structural technical field, relates in particular to a kind of improved type screw structural.
Background technique
As a kind of important union piece, screw has been widely used in the various machinery equipments; Wherein, existing screw generally adopts iron material to be prepared from, and screw includes screw head and screw section, and the screw thread of screw section generally adopts the mode of roll extrusion to be prepared from.Yet in the using process of reality, existing irony screw gets rusty easily, and stuck phenomenon occurs easily; In addition, also there is the defective of adaptation difference in the irony screw.
Also have a kind of pure plastics screw on the market, but there is the automation assembling that intensity is low, be not easy to magnetic absorption in the plastics screw.
Summary of the invention
The purpose of this utility model is to provide a kind of improved type screw structural at the deficiencies in the prior art, this improved type screw structural with the irony screw with the advantages of pure plastics screw in, it is high and be convenient to the automation assembling work of magnetic absorption the stuck phenomenon, the intensity that cause owing to getting rusty can not to occur.
For achieving the above object, the utility model is achieved through the following technical solutions.
A kind of improved type screw structural, include iron screw base portion, iron screw base portion includes screw head and extends in the distolateral screw core of screw head one, the terminal part of screw core is provided with screw retaining head, the periphery wall of screw core is sheathed with plastic whorl portion between screw retaining head and screw head, plastic whorl portion is installed between screw retaining head and the screw head, and the periphery wall of plastic whorl portion is provided with screw thread; The periphery wall of screw core has extended at least two spline projectioies outwardly between screw retaining head and screw head, the corresponding spline projection of plastic whorl portion offers the spline groove, and the spline projection is flush-mounted in the spline groove.
The beneficial effects of the utility model are: a kind of improved type screw structural described in the utility model, it includes iron screw base portion, iron screw base portion includes screw head and extends in the distolateral screw core of screw head one, the terminal part of screw core is provided with screw retaining head, the periphery wall of screw core is sheathed with plastic whorl portion between screw retaining head and screw head, plastic whorl portion is installed between screw retaining head and the screw head, and the periphery wall of plastic whorl portion is provided with screw thread; The periphery wall of screw core has extended at least two spline projectioies outwardly between screw retaining head and screw head, the corresponding spline projection of plastic whorl portion offers the spline groove, and the spline projection is flush-mounted in the spline groove.During work, the utility model is loaded on other link by plastic whorl portion spiral shell, and iron screw base portion can guarantee the utility model integral intensity, and iron screw base portion can satisfy the automation assembling work requirement that the utility model is realized magnetic absorption; Wherein, the screw of screw core retaining head is used for axially stopping plastic whorl portion and preventing that plastic whorl portion from axially coming off that simultaneously, the utility model prevents that by spline projection and spline groove fit plastic whorl portion from rotating.Comprehensive above-mentioned situation as can be known, the utility model effectively with the irony screw with the advantages of pure plastics screw in, namely the utlity model has the intensity height, be convenient to realize magnetic absorption the automation assembling work, can not stuck and constitutionally stable advantage.
Description of drawings
Utilize accompanying drawing to come the utility model is further detailed below, but the embodiment in the accompanying drawing does not constitute any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model.
In Fig. 1, include:
1---iron screw base portion 11---screw head
12---screw core 13---screw retaining head
14---spline projection 2---plastic whorl portion
21---screw thread 22---spline groove.
Embodiment
Come the utility model is described below in conjunction with concrete mode of execution.
As shown in Figure 1, a kind of improved type screw structural, include iron screw base portion 1, iron screw base portion 1 includes screw head 11 and extends in the distolateral screw core 12 of screw head 11 1, the terminal part of screw core 12 is provided with screw retaining 13, the periphery wall of screw core 12 is sheathed with plastic whorl portion 2 between screw retaining 13 and the screw head 11, plastic whorl portion 2 be installed in screw keep off 13 and screw head 11 between, the periphery wall of plastic whorl portion 2 is provided with screw thread 21; The periphery wall of screw core 12 has extended at least two spline projectioies 14 outwardly between screw retaining 13 and screw head 11, plastic whorl portion 2 corresponding spline projectioies 14 offer spline groove 22, and spline projection 14 is flush-mounted in the spline groove 22.
In the utility model using process, the utility model is loaded on other link by plastic whorl portion 2 spiral shells, iron screw base portion 1 can guarantee the utility model integral intensity, and iron screw base portion 1 can satisfy the automation assembling work requirement that the utility model is realized magnetic absorption; Wherein, the screw of screw core 12 retaining 13 is used for axially stopping plastic whorl portion 2 and preventing that plastic whorl portion 2 from axially coming off that simultaneously, the utility model cooperates to prevent 2 rotations of plastic whorl portion by spline projection 14 and spline groove 22.
Comprehensive above-mentioned situation as can be known, the utility model effectively with the irony screw with the advantages of pure plastics screw in, namely the utlity model has the intensity height, be convenient to realize magnetic absorption the automation assembling work, can not stuck and constitutionally stable advantage.
Above content only is preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (1)
1. improved type screw structural, it is characterized in that: include iron screw base portion (1), iron screw base portion (1) includes screw head (11) and extends in the distolateral screw core (12) of screw head (11), the terminal part of screw core (12) is provided with screw retaining head (13), the periphery wall of screw core (12) is sheathed with plastic whorl portion (2) between screw retaining head (13) and screw head (11), plastic whorl portion (2) is installed between screw retaining head (13) and the screw head (11), and the periphery wall of plastic whorl portion (2) is provided with screw thread (21); The periphery wall of screw core (12) has extended at least two spline projectioies (14) outwardly between screw retaining head (13) and screw head (11), the corresponding spline projection of plastic whorl portion (2) (14) offers spline groove (22), and spline projection (14) is flush-mounted in the spline groove (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320093200 CN203146529U (en) | 2013-03-01 | 2013-03-01 | Improved screw structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320093200 CN203146529U (en) | 2013-03-01 | 2013-03-01 | Improved screw structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146529U true CN203146529U (en) | 2013-08-21 |
Family
ID=48974055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320093200 Expired - Fee Related CN203146529U (en) | 2013-03-01 | 2013-03-01 | Improved screw structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146529U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275954A (en) * | 2015-11-25 | 2016-01-27 | 杨挺 | Screw |
| CN106246688A (en) * | 2016-08-25 | 2016-12-21 | 安徽六方重联机械股份有限公司 | Multilamellar fastening type elastic force bolt |
-
2013
- 2013-03-01 CN CN 201320093200 patent/CN203146529U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275954A (en) * | 2015-11-25 | 2016-01-27 | 杨挺 | Screw |
| CN106246688A (en) * | 2016-08-25 | 2016-12-21 | 安徽六方重联机械股份有限公司 | Multilamellar fastening type elastic force bolt |
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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: 20130821 Termination date: 20150301 |
|
| EXPY | Termination of patent right or utility model |