CN205190489U - Novel structure anti -loose thread fastener - Google Patents
Novel structure anti -loose thread fastener Download PDFInfo
- Publication number
- CN205190489U CN205190489U CN201521029920.2U CN201521029920U CN205190489U CN 205190489 U CN205190489 U CN 205190489U CN 201521029920 U CN201521029920 U CN 201521029920U CN 205190489 U CN205190489 U CN 205190489U
- Authority
- CN
- China
- Prior art keywords
- nut
- thread
- screw rod
- outside
- outer nut
- 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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Abstract
The utility model provides a novel structure anti -loose thread fastener, including integrative head, screw rod, the mother nut that sets up, still include outer nut, the afterbody of screw rod is the boss form, is located the inboard internal thread of screw rod and cooperatees with the mother nut, and the external screw thread that is located the screw rod outside cooperatees with outer nut, internal thread and external screw thread revolve to on the contrary, and the internal screw thread external diameter is greater than the external diameter of external screw thread, the inboard outside with the mother nut of outer nut contacts. The utility model discloses a two nuts with revolve to opposite double thread structure, not hard up during to the outward turning when the mother nut, because two nuts contact, the frictional force through between the two drives outer nut and rotates, owing to inside and outside screw soon to on the contrary, in the time of the mother nut outward turning, outer nut internal rotation to reach and make the locking mesh that takes off of this fastener.
Description
Technical field
The utility model relates to threaded fastener field, refers to a kind of new structure checknut fastening piece especially.
Background technique
Threaded fastener comprises screw, bolt, stud etc., is standard piece conventional in every profession and trade.For tire screw, tire screw comprises and is wholely set head, screw rod and nut, and screw rod forms screw head near head one end, and the other end is formed, and nut is placed on screw rod tail and tightens.This structure, in Long-Time Service process, due to external force such as impacts when vibration, brake, is easy to cause nut loosening to depart from screw rod.If tire screw does not have Timeliness coverage after loosening, cause tire to take off car, easily traffic accident occurs.
Model utility content
The utility model proposes a kind of new structure checknut fastening piece, solve existing threaded fastener screw rod and nut easily produces loosening problem in contact position.
The technical solution of the utility model is achieved in that
A kind of new structure checknut fastening piece, comprises the head, screw rod, the mother nut that are wholely set; Also comprise outer nut; The afterbody of screw rod is boss-shaped, and the internal thread be positioned at inside screw rod matches with mother nut, and the outside thread be positioned at outside screw rod matches with outer nut; Internal thread and external thread rotary are to contrary, and the external diameter of internal thread is greater than externally threaded external diameter; The inner side of outer nut contacts with the outside of mother nut.
As further improvement of the utility model, the thread pitch of outside thread and outer nut is less than the thread pitch of internal thread and mother nut.
As further improvement of the utility model, the inner side of outer nut and the outside of mother nut are respectively equipped with the lines cooperatively interacted.
As further improvement of the utility model, the inner side of outer nut offers the step-like groove of a circle, and the external diameter of groove is greater than the external diameter of internal thread.
As further improvement of the utility model, the profile of outer nut and mother nut is equilateral hexagon.
The beneficial effects of the utility model are:
The utility model adopts two worm structures that double nut is contrary with rotation direction, when mother nut loosens to outward turning, because double nut contacts, outer nut is driven to rotate by frictional force between the two, because the rotation direction of internal and external screw thread is contrary, while mother nut outward turning, outer nut inward turning, thus reach the object making this fastener locking de-.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation in embodiment before the assembling of new structure checknut fastening piece;
Fig. 2 is the structural representation in embodiment after the assembling of new structure checknut fastening piece;
Fig. 3 is the sectional drawing of new structure checknut fastening piece in embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As illustrated in fig. 1 and 2, be the structural representation of new structure checknut fastening piece in illustrative embodiment.
New structure checknut fastening piece in embodiment, comprises the head 1, screw rod 2, mother nut 3 and the outer nut 4 that are wholely set; The afterbody of screw rod 2 is boss-shaped, and the internal thread 21 be positioned at inside screw rod 2 matches with mother nut 3, and the outside thread 22 be positioned at outside screw rod 2 matches with outer nut 4; Internal thread 21 is contrary with outside thread 22 rotation direction, and the external diameter of internal thread 21 is greater than the external diameter of outside thread 22; The inner side of outer nut 4 contacts with the outside of mother nut 3.
Preferably, in embodiment, outside thread 22 and the thread pitch of outer nut 4 are less than the thread pitch of internal thread 21 and mother nut 3, when being subject to the power that outside causes mother nut 3 to get loose, mother nut 3 can so that than outer nut 4, speed is away from the pretightening force on screw rod faster, and cause the strength got loose in any meeting under, mother nut 3 and outer nut 4 can with different rates away from pretightening force districts, mechanicalness locking is produced between two nuts, reduce maintenance and responsibility, and increase Security simultaneously, reduce maintenance cost.
In order to increase the frictional force between outer nut 4 and mother nut 3, the inner side of outer nut 4 and the outside of mother nut 3 are respectively equipped with the lines cooperatively interacted.
As shown in Figure 3, be the sectional drawing of new structure checknut fastening piece in embodiment.
Outer nut 4 is hindered to contact with mother nut 3 in order to prevent internal thread 21 end, new structure checknut fastening piece in embodiment, the inner side of outer nut 4 offers the step-like groove of a circle 20, the external diameter of groove 20 is greater than the external diameter of internal thread 21, and the inner side of outer nut 4 is not contacted with internal thread 21.
Coordinate better in order to ensure between outer nut 4 with mother nut 3, outer nut 4 is equilateral hexagon with the profile of mother nut 3.
When checknut fastening piece in embodiment assembles, the inside and outside both sides of mother nut and outer nut all need to leave screw thread, need between the two to contact with each other, for the activity of mother nut is allowed some leeway simultaneously; Its two worm structures adopting double nut contrary with rotation direction, when mother nut loosens to outward turning, because double nut contacts, outer nut is driven to rotate by frictional force between the two, because the rotation direction of internal and external screw thread is contrary, while mother nut outward turning, outer nut inward turning, thus reach the object making this fastener locking de-.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a new structure checknut fastening piece, comprises the head (1), screw rod (2) and the mother nut (3) that are wholely set; It is characterized in that, also comprise outer nut (4); The afterbody of described screw rod (2) is boss-shaped, the internal thread (21) being positioned at described screw rod (2) inner side matches with described mother nut (3), and the outside thread (22) being positioned at described screw rod (2) outside matches with described outer nut (4); Described internal thread (21) is contrary with described outside thread (22) rotation direction, and the external diameter of described internal thread (21) is greater than the external diameter of described outside thread (22); The inner side of described outer nut (4) contacts with the outside of described mother nut (3).
2. new structure checknut fastening piece according to claim 1, it is characterized in that, described outside thread (22) is less than the thread pitch of described internal thread (21) and described mother nut (3) with the thread pitch of described outer nut (4).
3. new structure checknut fastening piece according to claim 1 and 2, is characterized in that, the inner side of described outer nut (4) and the outside of described mother nut (3) are respectively equipped with the lines cooperatively interacted.
4. new structure checknut fastening piece according to claim 1 and 2, it is characterized in that, the inner side of described outer nut (4) offers the step-like groove of a circle (20), and the external diameter of described groove (20) is greater than the external diameter of internal thread (21).
5. new structure checknut fastening piece according to claim 1 and 2, is characterized in that, described outer nut (4) is equilateral hexagon with the profile of described mother nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029920.2U CN205190489U (en) | 2015-12-11 | 2015-12-11 | Novel structure anti -loose thread fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029920.2U CN205190489U (en) | 2015-12-11 | 2015-12-11 | Novel structure anti -loose thread fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190489U true CN205190489U (en) | 2016-04-27 |
Family
ID=55783483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521029920.2U Expired - Fee Related CN205190489U (en) | 2015-12-11 | 2015-12-11 | Novel structure anti -loose thread fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190489U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404397A (en) * | 2018-12-26 | 2019-03-01 | 林平 | Anti-loosening nut |
| CN109854607A (en) * | 2018-12-28 | 2019-06-07 | 天津市盛立达机械设备有限公司 | Push against detent Anti-off bolt |
| CN117145405A (en) * | 2023-11-01 | 2023-12-01 | 克拉玛依君合恒泰实验检测有限合伙企业 | Joint, petroleum drilling machine and full-well-section well cementation casing rotary well cementation method |
-
2015
- 2015-12-11 CN CN201521029920.2U patent/CN205190489U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404397A (en) * | 2018-12-26 | 2019-03-01 | 林平 | Anti-loosening nut |
| CN109854607A (en) * | 2018-12-28 | 2019-06-07 | 天津市盛立达机械设备有限公司 | Push against detent Anti-off bolt |
| CN117145405A (en) * | 2023-11-01 | 2023-12-01 | 克拉玛依君合恒泰实验检测有限合伙企业 | Joint, petroleum drilling machine and full-well-section well cementation casing rotary well cementation method |
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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: 20160427 Termination date: 20181211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |