CN204784060U - Location jam nut - Google Patents
Location jam nut Download PDFInfo
- Publication number
- CN204784060U CN204784060U CN201520323129.6U CN201520323129U CN204784060U CN 204784060 U CN204784060 U CN 204784060U CN 201520323129 U CN201520323129 U CN 201520323129U CN 204784060 U CN204784060 U CN 204784060U
- Authority
- CN
- China
- Prior art keywords
- head
- rod
- positioning
- pawl
- utility
- 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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- Bolts, Nuts, And Washers (AREA)
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Abstract
The utility model discloses a location jam nut, it includes the head and the body of rod, the inside recessed formation in center of the upper surface of head is twisted and is moved the groove, the upper portion surface of the body of rod is the smooth surface, and the lower surface is equipped with the screw thread, and the upper end of this body of rod is connected in the lower surface center of this head, and the peripheral position that corresponds the body of rod in be centre of a circle symmetry on the lower surface of head and be equipped with a plurality of pawls, the prong orientation of this pawl with revolving to the unanimity of screw thread, the utility model has the advantages of reasonable structure design, ingenious lower surface at the head is equipped with a plurality of pawls, the prong orientation of this pawl with revolving to the unanimity of screw thread effectively promotes positional stability, and the antiskid is effectual, and difficult because of vibrations appearance pine takes off the phenomenon, stability is good, firm in connection, and overall structure is simple, can pass through mould one -time molding, and the cost is cheap relatively, and the large tracts of land of being convenient for is popularized and applied.
Description
Technical field
The utility model relates to screw technical field, is specifically related to a kind of positioning and locking screw.
Background technique
Screw utilizes the inclined-plane circular rotating of object and the physics of frictional force and mathematical principle, the by easy stages instrument of fastening implements parts.Screw is the general saying of fastening piece, daily pet phrase.Screw is industrial necessity indispensable in daily life: the minimum screw used as photographic camera, glasses, clock and watch, electronics etc.; The general screw of TV, electric product, musical instrument, furniture etc.; Large-scale screw, nut is then used as engineering, building, bridge; Traffic tool, aircraft, electric car, automobile etc. then sized by screw using.Screw industrially bears vital task, as long as the earth also exists industry, then the function of screw is forever important.Screw is the joint invention over the past thousands of years in people's productive life, and according to application, it is the first invention of the mankind.
But although existing screw can meet the effect connecting securing objects, easily occurs because of vibrations the phenomenon that gets loose after screw tightens; For this reason, can only by adding pad or putting locking glue promotes positioning stablity effect, this not only makes troubles to operation, and adds cost.
Model utility content
For above-mentioned deficiency, the purpose of this utility model is, provides a kind of smart structural design, rationally, not easily gets loose, the positioning and locking screw be connected firmly.
For achieving the above object, technological scheme provided by the utility model is: a kind of positioning and locking screw, it comprises head and the body of rod, the central position of the upper surface of described head inwardly concaves formation and turns groove, the outer surface of upper of the described body of rod is smooth surface, lower surface is provided with screw thread, the upper end of this body of rod is connected to the lower surface central position of this head, and the peripheral position of the corresponding body of rod is arranged with multiple pawl in the center of circle on the lower surface of described head, the crown of this pawl is towards consistent with the rotation direction of described screw thread.
Improve as one of the present utility model, the quantity of described pawl is four, is symmetricly set on the lower surface of described head, good antiskid effect, not easily loosens in the center of circle.
Improve as one of the present utility model, described in turn groove cross-sectional profile profile be quincunx or regular hexagon, effectively can prevent the situation of skidding from occurring, there is intensity high, the feature that precision is high, long service life.
Improve as one of the present utility model, the upper surface of described head is smooth surface, is convenient to tighten connection.
Improve as one of the present utility model, described head and the body of rod are integrated linkage structure, are connected firmly, good stability.
Improve as one of the present utility model, outer surface is electroplate with color zinc layers, then does dehydrogenation 6h process, effectively promotes wear resistance and alkali resistant acid fastness.
The beneficial effects of the utility model are: reasonable in design of the present utility model, the ingenious lower surface at head is provided with multiple pawl, the crown of this pawl is towards consistent with the rotation direction of described screw thread, effective lifting position stability, good antiskid effect, not easily there is because of vibrations the phenomenon that gets loose, good stability, be connected firmly; And overall structure is simple, can pass through mould disposal molding, relative inexpensiveness., be convenient to large scale application.
Below in conjunction with accompanying drawing and embodiment, the utility model is further illustrated.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is plan structure schematic diagram of the present utility model.
Embodiment
See Fig. 1 and Fig. 2, a kind of positioning and locking screw that the present embodiment provides, it comprises head 1 and the body of rod 2, the central position of the upper surface of described head 1 inwardly concaves formation and turns groove 11, the outer surface of upper of the described body of rod 2 is smooth surface, lower surface is provided with screw thread 21, the upper end of this body of rod 2 is connected to the lower surface central position of this head 1, and the peripheral position of the corresponding body of rod 2 is arranged with multiple pawl 12 in the center of circle on the lower surface of described head 1, the crown of this pawl 12 is towards consistent with the rotation direction of described screw thread 21.The upper surface of described head 1 is smooth surface, is convenient to tighten connection.Described head 1 and the body of rod 2 are integrated linkage structure, are not only connected firmly, good stability, and pawl 12 can pass through mould disposal molding, and cost is low, are easy to realize.The outer surface of upper periphery of the described body of rod 2 is provided with chamfering.
In the present embodiment, the height of described pawl 12 is 0.5 ~ 1.2mm, and quantity is four, and be symmetricly set on the lower surface of described head 1 in the center of circle, good antiskid effect, not easily loosens.
Preferably, described in turn groove 11 cross-sectional profile profile be quincunx, effectively can prevent the situation of skidding from occurring, there is intensity high, the feature that precision is high, long service life.In other embodiment, this cross-sectional profile profile turning groove 11 can be regular hexagon.
Improve as one of the present utility model, the upper surface of described head 1 is smooth surface, is convenient to tighten connection.Described head 1 and the body of rod 2 are integrated linkage structure, are connected firmly, good stability.
For increasing the service life, the outer surface of the utility model positioning and locking screw is also electroplate with color zinc layers, then does dehydrogenation 6h process, effectively promotes wear resistance and alkali resistant acid fastness.
During use, directly the utility model positioning and locking screw is screwed into the screw of object, when tightened, the lower surface of described head 1 is corresponding to be pressed on the surface of object, pawl 12 is tightly engaged on the surface of object, not easily occur because of vibrations the phenomenon that gets loose, good antiskid effect, stability is high.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change above-mentioned mode of execution and revise.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the utility model.As described in the utility model above-described embodiment, adopt structure same or similar with it and other screw obtained all in the utility model protection domain.
Claims (7)
1. a positioning and locking screw, it comprises head and the body of rod, it is characterized in that, the central position of the upper surface of described head inwardly concaves formation and turns groove, the outer surface of upper of the described body of rod is smooth surface, and lower surface is provided with screw thread, and the upper end of this body of rod is connected to the lower surface central position of this head, and the peripheral position of the corresponding body of rod is arranged with multiple pawl in the center of circle on the lower surface of described head, the crown of this pawl is towards consistent with the rotation direction of described screw thread.
2. positioning and locking screw according to claim 1, is characterized in that: the quantity of described pawl is four, is symmetricly set on the lower surface of described head in the center of circle.
3. positioning and locking screw according to claim 1 and 2, is characterized in that: described in turn groove cross-sectional profile profile be quincunx or regular hexagon.
4. positioning and locking screw according to claim 1, is characterized in that: the upper surface of described head is smooth surface.
5. positioning and locking screw according to claim 1, is characterized in that: described head and the body of rod are integrated linkage structure.
6. positioning and locking screw according to claim 5, is characterized in that: outer surface is electroplate with color zinc layers.
7. positioning and locking screw according to claim 1, is characterized in that: the height of described pawl is 0.5 ~ 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520323129.6U CN204784060U (en) | 2015-05-19 | 2015-05-19 | Location jam nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520323129.6U CN204784060U (en) | 2015-05-19 | 2015-05-19 | Location jam nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784060U true CN204784060U (en) | 2015-11-18 |
Family
ID=54524115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520323129.6U Expired - Fee Related CN204784060U (en) | 2015-05-19 | 2015-05-19 | Location jam nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784060U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108779794A (en) * | 2016-01-12 | 2018-11-09 | Ejot 有限责任公司 | A kind of tightening member |
-
2015
- 2015-05-19 CN CN201520323129.6U patent/CN204784060U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108779794A (en) * | 2016-01-12 | 2018-11-09 | Ejot 有限责任公司 | A kind of tightening member |
| US11181139B2 (en) | 2016-01-12 | 2021-11-23 | Ejot Gmbh & Co. Kg | Securing element |
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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: 20151118 Termination date: 20180519 |