CN205190488U - Novel structure anti -loose thread fastener - Google Patents
Novel structure anti -loose thread fastener Download PDFInfo
- Publication number
- CN205190488U CN205190488U CN201521029916.6U CN201521029916U CN205190488U CN 205190488 U CN205190488 U CN 205190488U CN 201521029916 U CN201521029916 U CN 201521029916U CN 205190488 U CN205190488 U CN 205190488U
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- CN
- China
- Prior art keywords
- bolt
- mother nut
- thread
- screw rod
- outside
- 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, mother nut, the bolt that sets up, the end of screw rod is seted up and is taken the cylindrical groove of screwed, is located the outside external screw thread of screw rod and cooperatees with the mother nut, is located the internal thread in the inside cylindrical groove of screw rod and the double -screw bolt of bolt and cooperatees, internal thread and external screw thread revolve to on the contrary, the inboard outside with the mother nut of the bolt head of bolt contacts. The utility model discloses a nut and double -screw bolt to and revolve to opposite double thread structure, not hard up during to the outward turning when the mother nut, because the mother nut contacts with the bolt head, the frictional force through between the two drives the bolt and rotates and since inside and outside screw soon to on the contrary, in the time of the mother nut outward turning, the bolt internal rotation, thereby reach the locking purpose of taking off of this fastener of messenger.
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 and the mother nut that are wholely set; Also comprise bolt; The end of screw rod offers screwed cylindrical groove, and the outside thread being positioned at screw rod outside matches with mother nut, and the stud of the internal thread and bolt that are positioned at the cylindrical groove of inside screw matches; Internal thread and external thread rotary are to contrary; The inner side of the bolt head of bolt contacts with the outside of mother nut.
As further improvement of the utility model, the thread pitch of internal thread and bolt is less than the thread pitch of outside thread and mother nut.
As further improvement of the utility model, the inner side of bolt head 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 bolt head offers a circle groove along the root of stud, and the external diameter of groove is greater than externally threaded external diameter.
As further improvement of the utility model, the profile of bolt head and mother nut is equilateral hexagon.
The beneficial effects of the utility model are:
The utility model adopts nut and stud, and two worm structures that rotation direction is contrary, when mother nut loosens to outward turning, because mother nut and bolt head contact, screws is driven, because the rotation direction of internal and external screw thread is contrary, while mother nut outward turning by frictional force between the two, bolt 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 bolt 4 that are wholely set; The end of screw rod 2 offers screwed cylindrical groove, and the outside thread 21 being positioned at screw rod 2 outside matches with mother nut 3, and the stud 42 of the internal thread 22 and bolt 4 that are positioned at the cylindrical groove of screw rod 2 inside matches; Internal thread 22 is contrary with outside thread 21 rotation direction; The inner side of the bolt head 41 of bolt 4 contacts with the outside of mother nut 3.
Preferably, in embodiment, internal thread 22 and the thread pitch of bolt 4 are less than the thread pitch of outside 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 bolt 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 bolt 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 bolt 4 and mother nut 3, the inner side of bolt head 41 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.
Bolt head 41 is hindered to contact with mother nut 3 in order to prevent outside thread 21 end, new structure checknut fastening piece in embodiment, the inner side of bolt head 41 offers a circle groove 20 along the root of stud 42, the external diameter of groove 20 is greater than the external diameter of outside thread 21, and the inner side of bolt head 41 is not contacted with outside thread 21.
Coordinate better in order to ensure between bolt 4 with mother nut 3, bolt head 41 is equilateral hexagon with the profile of mother nut 3.
When checknut fastening piece in embodiment assembles, screw thread need be left in the inside and outside both sides of mother nut, and the root of stud 42 and end also need to leave screw thread, needs to contact with each other, for the activity of mother nut is allowed some leeway between mother nut and bolt head 41 simultaneously; It adopts nut and stud, and two worm structures that rotation direction is contrary, when mother nut loosens to outward turning, because mother nut and bolt head contact, screws is driven, because the rotation direction of internal and external screw thread is contrary, while mother nut outward turning by frictional force between the two, bolt 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 bolt (4); The end of described screw rod (2) offers screwed cylindrical groove, the outside thread (21) being positioned at described screw rod (2) outside matches with described mother nut (3), and the internal thread (22) of described cylindrical groove being positioned at described screw rod (2) inner matches with the stud (42) of described bolt (4); Described internal thread (22) is contrary with described outside thread (21) rotation direction; The inner side of the bolt head (41) of described bolt (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 internal thread (22) is less than the thread pitch of described outside thread (21) and described mother nut (3) with the thread pitch of described bolt (4).
3. new structure checknut fastening piece according to claim 1 and 2, is characterized in that, the inner side of described bolt head (41) 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 bolt head (41) offers a circle groove (20) along the root of described stud (42), and the external diameter of described groove (20) is greater than the external diameter of described outside thread (21).
5. new structure checknut fastening piece according to claim 1 and 2, is characterized in that, described bolt head (41) is equilateral hexagon with the profile of described mother nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029916.6U CN205190488U (en) | 2015-12-11 | 2015-12-11 | Novel structure anti -loose thread fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029916.6U CN205190488U (en) | 2015-12-11 | 2015-12-11 | Novel structure anti -loose thread fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190488U true CN205190488U (en) | 2016-04-27 |
Family
ID=55783482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521029916.6U Expired - Fee Related CN205190488U (en) | 2015-12-11 | 2015-12-11 | Novel structure anti -loose thread fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190488U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269669A (en) * | 2017-07-27 | 2017-10-20 | 海盐东盛紧固件制造有限公司 | A kind of anti-theft bolt group for being difficult to remove |
| CN107701565A (en) * | 2017-11-20 | 2018-02-16 | 长沙翼希网络科技有限公司 | Fastening bolt |
| CN107725566A (en) * | 2017-11-30 | 2018-02-23 | 张小龙 | Check bolt nut structure assembly |
| CN107795562A (en) * | 2017-11-20 | 2018-03-13 | 长沙翼希网络科技有限公司 | Fastening bolt |
| CN108547629A (en) * | 2018-06-01 | 2018-09-18 | 齐鲁交通发展集团有限公司 | A kind of detachable development machine pick |
| CN109538605A (en) * | 2017-09-21 | 2019-03-29 | 孙愉后 | Fastener |
| CN109733546A (en) * | 2019-02-01 | 2019-05-10 | 天津海之星船艇科技有限公司 | A kind of water surface unmanned boat |
-
2015
- 2015-12-11 CN CN201521029916.6U patent/CN205190488U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269669A (en) * | 2017-07-27 | 2017-10-20 | 海盐东盛紧固件制造有限公司 | A kind of anti-theft bolt group for being difficult to remove |
| CN109538605A (en) * | 2017-09-21 | 2019-03-29 | 孙愉后 | Fastener |
| CN109538605B (en) * | 2017-09-21 | 2023-08-29 | 孙愉后 | Fastening piece |
| CN107701565A (en) * | 2017-11-20 | 2018-02-16 | 长沙翼希网络科技有限公司 | Fastening bolt |
| CN107795562A (en) * | 2017-11-20 | 2018-03-13 | 长沙翼希网络科技有限公司 | Fastening bolt |
| CN107725566A (en) * | 2017-11-30 | 2018-02-23 | 张小龙 | Check bolt nut structure assembly |
| CN108547629A (en) * | 2018-06-01 | 2018-09-18 | 齐鲁交通发展集团有限公司 | A kind of detachable development machine pick |
| CN109733546A (en) * | 2019-02-01 | 2019-05-10 | 天津海之星船艇科技有限公司 | A kind of water surface unmanned boat |
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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: 20160427 Termination date: 20181211 |