CN201650998U - Tightening bolt with forward and reverse thread tops - Google Patents
Tightening bolt with forward and reverse thread tops Download PDFInfo
- Publication number
- CN201650998U CN201650998U CN2010200333083U CN201020033308U CN201650998U CN 201650998 U CN201650998 U CN 201650998U CN 2010200333083 U CN2010200333083 U CN 2010200333083U CN 201020033308 U CN201020033308 U CN 201020033308U CN 201650998 U CN201650998 U CN 201650998U
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- CN
- China
- Prior art keywords
- thread tops
- bolt
- tooth
- worm tooth
- tops
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- 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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Abstract
The utility model discloses a tightening bolt with forward and reverse thread tops, which comprises a screw cap and a screw stem. The thread tops on the screw stem comprises upper section thread tops and lower section thread tops, the direction of the upper section thread tops is opposite to that of the lower section thread tops, the upper section thread tops are forward thread tops, and the lower section thread tops are reverse thread tops. The tightening bolt with forward and reverse thread tops is simple in structure and convenient in manufacturing, is modified on the base of an original bolt, and by arranging the forward thread tops and the reverse thread tops on the screw stem, solves the problem that during the process of connecting and tightening a frame structure and machinery, co-vibration of a device and a connecting position generated by influence of external force leads to loosening and displacement of the connection.
Description
Technical field:
The utility model relates to a kind of bolt, relates in particular to a kind of screw rod and is provided with the positive and negative worm tooth confinement bolt that can prevent that its installation is loosening.
Background technique:
Bolt is by a head and screw rod (having an externally threaded cylindrical body) class fastening piece dimerous, needs to cooperate with nut, is used to be fastenedly connected two parts that have through hole.This Connecting format claims bolt to connect.As nut is screwed off from bolt, can make these two parts separately again, be to belong to removably connect so bolt connects.
Being classified as follows of bolt:
1,, having common and have articulation hole to use by the force way that connects. the bolt that articulation hole is used will cooperate with the size in hole, is used in when being subjected to transverse force;
2, by the head shape hexagon head is arranged, round end, square spigot, countersunk head or the like general countersunk head be used in and require to connect the rear surface smooth place that does not have projection because countersunk head may be screwed in the part.Round end also can be screwed in the part, and the screwing force of square toes can be more greatly, but size is very big, and hexagon head is the most frequently used.
In order to satisfy the needs that back locking is installed, have head porose in addition, bar portion is porose, unlikely getting loose when these holes can make bolt be vibrated.
The bolt that has does not have the polished rod of screw thread to run business into particular one, and is the eel-like figure bolt, and this bolt helps being subjected to the connection of variable force.
Special-purpose high-strength bolt is arranged on the steel structure, and head can be done greatly, and size also changes.Special use is arranged in addition: T-slot bolt usefulness, use on the machine tool fixture at most, shape is special, the head both sides will be cut away, stone bolt is used for that machine and ground is connected and fixed, and a variety of shapes are arranged, U-bolt, as described above.Weld the special-purpose double-screw bolt of usefulness in addition, one has one on screw thread not have, and can be welded on the part the direct nutting of another side.
In the prior art bolt exists fixing tight and produce loosening phenomenon, bolt with process that nut cooperates in be easy to generate loosening phenomenon etc., make it flexibly connect inconvenience.
The model utility content:
The purpose of this utility model is to be used for remedying during prior art confines framework structure and mechanical connection, and device is subjected to external force to influence institute to produce and quiver altogether with being connected the position, and cause connecting the deficiency of becoming flexible and being shifted, and provide a kind of positive and negative tooth confinement bolt.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of positive and negative worm tooth is confined bolt, and this bolt is made up of nut, screw rod,
Worm tooth on the described screw rod is made up of epimere worm tooth and hypomere worm tooth;
Described epimere worm tooth is opposite with hypomere worm tooth direction;
Described epimere worm tooth is the plus thread tooth, and the hypomere worm tooth is the left-hand thread tooth.
It is simple that a kind of positive and negative worm tooth of the utility model is confined bolt arrangement, easily manufactured, on the basis of original bolt, improve, solved in framework structure and the mechanical connection confinement by the positive and negative worm tooth that is arranged on the screw rod, device cause connecting with quivering altogether of being connected that the position influences by external force to be produced the loosening and phenomenon that is shifted, and be provided with the worm tooth that cooperates with nut in the screw rod bottom, by positive and negative worm tooth fixing some do clockwise and during the parts of motion counterclockwise, adopt this bolt, when parts move clockwise, parts can be to moving by equidirectional, but can be subjected to the nut extruding on the clockwise screw thread, and offset this burst external force, and make the confinement part more firm, increased workpiece safety coefficient in use.
Description of drawings:
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model plan view
Fig. 2 is the utility model plan view
Fig. 3 is the utility model stereogram
Embodiment:
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Shown in figure 1-3:
A kind of positive and negative worm tooth is confined bolt, and this bolt 100 is made up of nut 101, screw rod 102, and nut 101 is connected with screw rod 102 one, and nut 101 end face centers are provided with interior hexagonal shrinkage pool 103; Screw rod 102 is provided with worm tooth 200; Nut 101 is a lug; Worm tooth 200 is made up of plus thread tooth 201 and left-hand thread tooth 202; Plus thread tooth 201 is arranged on the top of screw rod 102 and extends to nut 101 bottoms; Left-hand thread tooth 200 is arranged on screw rod 102 bottoms and extends to the bar head; Connect by smooth shaft 1021 between plus thread tooth 201 and the left-hand thread tooth 202.
The left-hand thread tooth 200 that is provided with by screw rod 102 bottoms can attaching nut be that one is fixed, in the process of using, the nut rotation is screwed on the left-hand thread tooth 200, confined in the confinement of part framework structure and mechanical connection and be arranged between nut 101 and the nut, device cause connecting with quivering altogether of being connected that the position influences by external force to be produced the loosening and phenomenon that is shifted, and be provided with the left-hand thread tooth 202 that cooperates with nut in screw rod 102 bottoms, by positive and negative worm tooth 200 fixing some do clockwise and during the parts of motion counterclockwise, adopt this bolt 100 to fix, when parts move clockwise, parts can be to moving by equidirectional, but can be subjected to the nut extruding on the clockwise screw thread, and offset this burst external force, make the confinement part more firm, increased workpiece safety coefficient in use.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a positive and negative worm tooth is confined bolt, and this bolt is made up of nut, screw rod, it is characterized in that, the worm tooth on the described screw rod is made up of epimere worm tooth and hypomere worm tooth; Described epimere worm tooth is opposite with hypomere worm tooth direction.
2. a kind of positive and negative worm tooth according to claim 1 is confined bolt, it is characterized in that described epimere worm tooth is the plus thread tooth, and the hypomere worm tooth is the left-hand thread tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200333083U CN201650998U (en) | 2010-01-21 | 2010-01-21 | Tightening bolt with forward and reverse thread tops |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200333083U CN201650998U (en) | 2010-01-21 | 2010-01-21 | Tightening bolt with forward and reverse thread tops |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650998U true CN201650998U (en) | 2010-11-24 |
Family
ID=43116233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200333083U Expired - Fee Related CN201650998U (en) | 2010-01-21 | 2010-01-21 | Tightening bolt with forward and reverse thread tops |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650998U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910065A (en) * | 2016-04-27 | 2016-08-31 | 朱彩玲 | Insertion strip for insect expelling lamp tube |
| CN107143564A (en) * | 2016-07-30 | 2017-09-08 | 徐建俭 | Include the retention mechanism of plus thread and left-hand thread simultaneously |
| CN109130467A (en) * | 2017-06-16 | 2019-01-04 | 日本梅克特隆株式会社 | Scraper scrapes knife plate holding tool, silk-screen printing device |
| CN110441136A (en) * | 2019-09-25 | 2019-11-12 | 吉林大学 | Stretching based on positive and negative pitch thread structure-torsion composite fixture |
-
2010
- 2010-01-21 CN CN2010200333083U patent/CN201650998U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910065A (en) * | 2016-04-27 | 2016-08-31 | 朱彩玲 | Insertion strip for insect expelling lamp tube |
| CN107143564A (en) * | 2016-07-30 | 2017-09-08 | 徐建俭 | Include the retention mechanism of plus thread and left-hand thread simultaneously |
| CN109130467A (en) * | 2017-06-16 | 2019-01-04 | 日本梅克特隆株式会社 | Scraper scrapes knife plate holding tool, silk-screen printing device |
| CN110441136A (en) * | 2019-09-25 | 2019-11-12 | 吉林大学 | Stretching based on positive and negative pitch thread structure-torsion composite fixture |
| CN110441136B (en) * | 2019-09-25 | 2024-03-12 | 吉林大学 | Stretching-twisting composite clamp based on positive and negative thread structure |
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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: 20101124 Termination date: 20190121 |