CN102758824B - Looseness-prevention screw with rotary pin lock tooth - Google Patents
Looseness-prevention screw with rotary pin lock tooth Download PDFInfo
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- CN102758824B CN102758824B CN201210249770.0A CN201210249770A CN102758824B CN 102758824 B CN102758824 B CN 102758824B CN 201210249770 A CN201210249770 A CN 201210249770A CN 102758824 B CN102758824 B CN 102758824B
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- nut
- latch
- tooth
- elastic force
- chuck
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Abstract
The invention discloses a looseness-prevention screw with a rotary pin lock tooth. The looseness-prevention screw with the rotary pin lock tooth comprises a threaded rod (1) with a longitudinal groove (3) and a plug pin, wherein the plug pin is arranged in the groove (3). The looseness-prevention screw with the rotary pin lock tooth is characterized in that the plug pin comprises a clamping mechanism; the clamping mechanism is provided with a tooth (7) and a clamping table (10); the tooth (7) can be mutually meshed with the thread of a nut (4) which is matched with the threaded rod (1); and the clamping table (10) props against the head part front edge of the nut (4) matched with the threaded rod (1). The looseness-prevention screw with the rotary pin lock tooth provided by the invention is convenient to use, the plug pin can not be clamped, has reliable looseness-prevention capability, and can be easily inserted in or dropped out any time, and the nut can be further regulated under the condition that the plug pin is not dropped out.
Description
Technical field
The present invention relates to a kind of screw check device, particularly a kind of band is shipped and resell on another market and is locked the jam nut of tooth.
Background technique
Screw is applied to industry-by-industry widely as a kind of conventional fastening piece; but in use; usually can because of the vibrations of equipment; or extraneous greasy dirt stain is infiltrated; cause coming off of the nut of screw and nut; thus cause mechanical failure or even great security incident, therefore people contemplate and adopt the various method preventing loosened screw.Have multiple jam nut on the market at present, such as, having must be thinner by the Design of Screw Thread on screw, has and does smaller by the aperture of nut, and to strengthen the anti-impact force of screw, but this screw fabricating cost is higher, uses and comparatively requires great effort.
On jam nut and method, we retrieved following open source literatures, such as:
1, Chinese patent, application number: CN201120031489.0, title: a kind of Shockproof anti-loosening screw, described a kind of Shockproof anti-loosening screw comprises one slot bolt, a directed nut and an embolus.Described have slot bolt to be on the screw rod of plain bolt, be provided with a groove parallel with described screw rod; Described directed nut is made up of a plain nut and a bolt mother; Described embolus comprises embolus body and bolt handle.After having slot bolt to fastening position or position location described in described directed nut screws in, then described in being inserted by described embolus body, there is the described groove of slot bolt, stretch in the described bolt mother of described directed nut, and closely withstand the screw thread of described directed nut.
2, Chinese patent, application number: CN201120034896.7, title: can random positioned Shockproof anti-loosening screw, summary: one can random positioned Shockproof anti-loosening screw, describedly can comprise one and has slot bolt, a directed nut and a bolt card by random positioned Shockproof anti-loosening screw.Described have slot bolt to be on the screw rod of plain bolt, be provided with a groove parallel with described screw rod; Described directed nut is made up of a plain nut and a card pipe; The grab that described bolt card comprises embolus body and is connected with this embolus body.After having slot bolt to fastening position or position location described in described directed nut screws in, the described groove of slot bolt is had described in being inserted by the embolus body of described bolt card, stretch into the described card pipe of described directed nut, and closely withstand the screw thread of described directed nut, more described grab is snapped in the circular shape groove of card pipe described in described directed nut.
3. Chinese patent, application number: CN201110032166.8, title: the Shockproof anti-loosening screw that a kind of available embolus tacks, the Shockproof anti-loosening screw that described a kind of available embolus tacks comprises one slot bolt, a directed nut and an embolus.Described have slot bolt to be on the screw rod of plain bolt, be provided with a groove parallel with described screw rod; Described directed nut is made up of a plain nut and a bolt mother; Described embolus comprises embolus body and bolt handle.After having slot bolt to fastening position or position location described in described directed nut screws in, then described in being inserted by described embolus body, there is the described groove of slot bolt, stretch in the described bolt mother of described directed nut, and closely withstand the screw thread of described directed nut.
The technological scheme that above document adopts is that the frictional force by strengthening nut is come locking, or adopt latch to carry out screens to prevent from loosening, but rub and lockingly easily cause the wearing and tearing of object and screw itself and lose anti-loose ability, and adopt the mode of latch, easily make that latch is stuck badly exits nut or the easy loose or dislocation of latch, latch orientation range is too small simultaneously, makes operation comparatively difficulty.
Summary of the invention
The object of this invention is to provide a kind of band ship and resell on another market lock tooth jam nut, easily loosen to overcome screw, and in existing anti-loose screw device, locking parts are easy to wear, the shortcoming that latch is stuck.
The solution of the present invention is by realizing like this: construct a kind of band ship and resell on another market lock tooth jam nut, comprise the screw rod and latch that are provided with longitudinal fluting, described latch is arranged in groove, described latch comprises clamping mechanism, described clamping mechanism is provided with tooth and chuck, the nut thread that described tooth and screw rod mate can be meshed, and described chuck props up the head forward position of the nut mated with screw rod.
Working principle of the present invention is, by arranging the groove of a longitudinal direction on screw rod, when nut turns round position required to screw rod, latch is pushed from groove, until the tooth on clamping mechanism and the helix alignment on nut, adopt tool into rotation latch subsequently, tooth on clamping mechanism and nut thread are stung mutually tightly, recess edge props up by clamping mechanism, chuck simultaneously on clamping mechanism props up the head forward position of nut, now, latch is clamped between nut and groove by clamping mechanism, makes nut check on this position.Driving force when the present invention mainly utilizes nut to move and screw thread thereof, to the reverse push power of screw rod, make aforementioned two kinds of rightabout power act on the same latch in recessed grain respectively, to reach the object of firm screw simultaneously.
In the present invention, as further improvement, above-described latch is U-shaped latch, described U-shaped latch comprises latch head, described latch inner portion forms cavity, and described clamping mechanism comprises elastic force pin, or elastic force pin and stationary body, described elastic force pin has one at least, and elastic force pin has elasticity; Described U-shaped latch has Extreme breadth time not stressed, and described Extreme breadth is greater than its height.By adopting U-shaped latch, define elastic force pin, or elastic force pin and stationary body, during operation, first nut is turned round the position needed to screw rod, U-shaped latch yaw is pushed in the groove in screw rod, first by the tooth on elastic force pin or stationary body and the helix alignment on nut, adopt instrument to insert cavity subsequently and rotate latch by its vertical pendulum, the tooth on clamping mechanism and nut thread are stung mutually tightly, now, elastic force pin withstands recess sidewall, described chuck props up the head forward position of nut, and complete the fixing of U-shaped latch and nut, namely nut is fixed on screw rod; Again U-shaped latch is overturn when needing to unclamp nut, tooth and nut are disengaged, nut and released.
In the present invention, described depth of groove be 2-5 that screw flight tooth is high doubly and its degree of depth be the 0.9-1.2 of its width doubly; Described chuck and tooth contour, chuck length is greater than the spacing of mated nut thread; The height of described latch is greater than recessed grain bottom and is less than the distance of recessed grain bottom to the nut thread corresponding to groove to the distance of the nut thread cusp corresponding to groove, described latch has Extreme breadth when not stressed, and described Extreme breadth is greater than the width of recessed grain; Its width when its elastic force pin is depressed into the tightest of described latch is less than the distance of recessed grain bottom to the nut thread cusp corresponding to recessed grain.According to above-mentioned technical pattern feature, can make latch in groove, carry out yaw easily and insert recessed grain, and when rotating latch vertical pendulum, the make tooth on latch and nut thread that can be lucky be engaged also set screw nut mutually, above-described height and width, situation when referring to latch vertical pendulum as shown in Fig. 2,5,6, yaw then refers to the situation after latch 90-degree rotation.
In the present invention, as further improving, described clamping mechanism is consisted of two elastic force pin, and described two elastic force pin afterbodys are equipped with tooth, and described two elastic force pin heads are equipped with chuck, adopt two elastic force pin to clamp latch.
In the present invention, improve as another kind, described clamping mechanism is consisted of an elastic force pin and stationary body, and described elastic force pin is shorter and smaller and anodontia than stationary body, and the afterbody of described stationary body is provided with tooth, chuck is arranged on stationary body head position, described stationary body bottom inside is provided with the recess corresponding with elastic force pin, such improvement, and stationary body can be made wider, thus tooth bar is also wider, retention force is also larger; And that elastic force pin can design is shorter and smaller, and can take in recess.
In the present invention, improve as another kind, described clamping mechanism is consisted of an elastic force pin and stationary body, described latch head be provided with horizontal groove just above, described stationary body comprises the chuck A of the chuck of head, the tooth at middle part and afterbody, described chuck A and chuck contour, groove can rotate latch more easily, and the chuck A of afterbody better can withstand the screw thread on nut in conjunction with chuck, prevent from loosening before and after nut.
The present invention has following beneficial effect:
1, easy to use, latch is not stuck, can insert easily at any time or exit, can also when not exiting latch further adjusting nut.
2, anti-loose ability is strong, and the self-lock ability of latch and mutual stops between latch and nut are braked, and makes latch and nut all the time can not loose or dislocation voluntarily.
3, economy and durability, latch is simply small and exquisite, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 be band of the present invention ship and resell on another market lock tooth jam nut in the structural representation of screw rod;
Fig. 2 be band of the present invention ship and resell on another market lock tooth jam nut in structural representation in embodiment 1 during U-shaped latch vertical pendulum;
Fig. 3 be band of the present invention ship and resell on another market lock tooth jam nut in structural representation when U-shaped latch is fixed in embodiment 1;
Fig. 4 be band of the present invention ship and resell on another market lock tooth jam nut in Facad structure schematic diagram when U-shaped latch is fixed in embodiment 1;
Fig. 5 be band of the present invention ship and resell on another market lock tooth jam nut in U-shaped latch structure schematic diagram in embodiment 2;
Fig. 6 be band of the present invention ship and resell on another market lock tooth jam nut in U-shaped latch structure schematic diagram in embodiment 3;
Component title and sequence number in figure:
Screw rod 1, screw head 2, groove 3, nut 4, elastic force pin 5, latch head 6, tooth 7, cavity 8, stationary body 9, chuck 10, recess 11, chuck A12, groove 13.
Embodiment
Below in conjunction with drawings and Examples describe band of the present invention ship and resell on another market lock tooth jam nut.
Embodiment 1:
As Figure 1-4, this band ship and resell on another market lock tooth jam nut comprise, comprise the screw thread on screw rod 1, screw head 2 and screw rod, screw rod 1 is provided with longitudinal groove 3, latch is provided with in groove 3, this latch is U-shaped latch, U-shaped latch comprises the latch head 6 of head position, latch inner portion forms cavity 8, clamping mechanism is that two elastic force pin, 5, two elastic force pin 5 are equipped with tooth 7, and tooth 7 can be meshed with nut 4 screw thread that screw rod 1 mates, two elastic force pin 5 heads are equipped with chuck 10, and described chuck 10 props up nut 4 head forward position.In the present embodiment, recessed poor 3 are set as that the degree of depth and width are 3.5mm, and U-shaped latch elastic force pin 5 when vertical pendulum does not stress nature when opening, and maximum cross section width is 4.0mm, latch yaw elastic force pin is stressed tighten up time latch overall width be 3.0mm, latch height is 3.5mm.
Be illustrated in figure 2 structural representation when U-shaped latch is erect, during operation, when nut 4 being turned round position required to screw rod 1, U-shaped latch is pushed in groove 3 with the state of yaw, until after tooth on elastic force pin 57 and the helix alignment on nut 4, adopt tiny iron staff, insert in cavity 8, overturn U-shaped latch, make it erect, and make tooth 7 and nut 4 mutually sting tightly, chuck 10 props up nut 4 head forward position, and now, elastic force pin 5 is propped up and touched the inwall of groove 3, make U-shaped latch fixing tight, now nut 4 belongs to tightening state.When needs come loose nut 4, more U-shaped slot is gone back to yaw state.
Application examples 1: in application examples 1, adopts the technological scheme in embodiment 1, is used on tractor, through tractor vibration-testing 40 minutes, without the loose or dislocation of screw and latch stuck.
Embodiment 2:
As shown in Figure 5, difference from Example 1 is, clamping mechanism is made up of an elastic force pin 5 and stationary body 9, elastic force pin 5 is shorter and smaller than stationary body 9 and anodontia, stationary body 9 is provided with tooth 7, the recess 11 corresponding with elastic force pin 5 is provided with bottom stationary body 9, elastic force pin 5 can be taken in recess 11, chuck 10 is arranged on stationary body 9 head position, in the present embodiment, recessed poor 3 are set as that the degree of depth and width are 3.0mm, U-shaped latch is when vertical pendulum, U-shaped latch is not when elastic force pin 5 stresses, maximum cross section width is 3.5mm, latch yaw elastic force pin 5 is stressed tighten up time latch overall width be: 2.6mm, be highly 3.0mm., all the other working principles are identical with embodiment 1.
Application examples 2: in application examples 1, adopts the technological scheme in embodiment 2, is used on agricultural harvester, through gathering in motor-driven test 100 minutes, without the loose or dislocation of screw and latch stuck.
Embodiment 3:
As shown in Figure 6, difference from Example 1 is, clamping mechanism is made up of an elastic force pin 5 and stationary body 9, latch head 6 is provided with horizontal groove 13 just above, stationary body 9 comprises the chuck 10 of head, the tooth 7 at middle part and the chuck A12 of afterbody, chuck A12 and chuck 10 contour, in the present embodiment, recessed poor 3 can be set as that the degree of depth and width are 4.0mm, U-shaped latch is when vertical pendulum, U-shaped latch is not when elastic force pin 5 stresses, maximum cross section width is 4.5mm, latch yaw elastic force pin 5 is stressed tighten up time latch overall width be: 3.4mm, be highly 4.0mm.Groove 13 can rotate latch more easily, and the chuck A12 of afterbody better can withstand the screw thread on nut 4 in conjunction with head chuck 10, prevents from skidding.All the other working principles are identical with embodiment 1.
Claims (5)
1. a band is shipped and resell on another market and is locked the jam nut of tooth, comprise the screw rod (1) and latch that are provided with longitudinal fluting (3), described latch is arranged in groove (3), it is characterized in that: described latch comprises clamping mechanism, described clamping mechanism is provided with tooth (7) and chuck (10), nut (4) screw thread that described tooth (7) and screw rod (1) mate can be meshed, described chuck (10) props up the head forward position of the nut (4) mated with screw rod (1), described latch is U-shaped latch, described U-shaped latch comprises latch head (6), described latch head (6) inner side forms cavity (8), described clamping mechanism comprises elastic force pin (5), or elastic force pin (5) and stationary body (9), described elastic force pin (5) has one at least, and elastic force pin (5) has elasticity, described U-shaped latch has Extreme breadth time not stressed, and described Extreme breadth is greater than its height.
2. band according to claim 1 is shipped and resell on another market the jam nut of lock tooth, it is characterized in that: described groove (3) degree of depth be screw rod (1) height of thread 2-5 doubly and its degree of depth be the 0.9-1.2 of its width doubly; Described chuck (10) is contour with tooth (7), and chuck (10) length is greater than the spacing of mated nut (4) screw thread; The height of described latch is greater than the distance be less than to nut (4) thread bottom corresponding to groove (3) bottom recessed grain (3) to the distance of nut (4) the screw thread cusp corresponding to groove (3) bottom recessed grain (3), described latch has Extreme breadth when not stressing, and described Extreme breadth is greater than the width of recessed grain (3); Described latch its width when its elastic force pin (5) pressure is received extremely the tightest is less than the distance of recessed grain (3) bottom to corresponding nut (4) the screw thread cusp of recessed grain (3).
3. band according to claim 2 is shipped and resell on another market and is locked the jam nut of tooth, it is characterized in that: described clamping mechanism is consisted of two elastic force pin (5), described two elastic force pin (5) afterbodys are equipped with tooth (7), and described two elastic force pin (5) heads are equipped with chuck (10).
4. band according to claim 2 is shipped and resell on another market and is locked the jam nut of tooth, it is characterized in that: described clamping mechanism is consisted of an elastic force pin (5) and stationary body (9), described elastic force pin (5) is shorter and smaller and anodontia than stationary body (9), the afterbody of described stationary body (9) is provided with tooth (7), chuck (10) is arranged on stationary body (9) head position, and described stationary body (9) bottom inside is provided with the recess (11) corresponding with elastic force pin (5).
5. band according to claim 2 is shipped and resell on another market and is locked the jam nut of tooth, it is characterized in that: described clamping mechanism is consisted of an elastic force pin (5) and stationary body (9), described latch head be provided with horizontal groove (13) just above, described stationary body (9) comprises the chuck A (12) of the chuck (10) of head, the tooth (7) at middle part and afterbody, described chuck A (12) and chuck (10) contour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210249770.0A CN102758824B (en) | 2012-07-19 | 2012-07-19 | Looseness-prevention screw with rotary pin lock tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210249770.0A CN102758824B (en) | 2012-07-19 | 2012-07-19 | Looseness-prevention screw with rotary pin lock tooth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102758824A CN102758824A (en) | 2012-10-31 |
| CN102758824B true CN102758824B (en) | 2015-01-14 |
Family
ID=47053414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210249770.0A Expired - Fee Related CN102758824B (en) | 2012-07-19 | 2012-07-19 | Looseness-prevention screw with rotary pin lock tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758824B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457971A (en) * | 2018-05-09 | 2018-08-28 | 林志厚 | A kind of tight bolt assembly connection method |
| CN110332206A (en) * | 2019-07-24 | 2019-10-15 | 海盐华胜紧固件有限公司 | A kind of cold-resistant nut assembly of railway |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US812663A (en) * | 1905-03-08 | 1906-02-13 | Alfred N Massie | Key-lock. |
| US1879290A (en) * | 1931-06-17 | 1932-09-27 | Johnson Laurance Benton | Lock nut and bolt |
| US3939889A (en) * | 1974-05-08 | 1976-02-24 | Ford Motor Company | Threaded assembly |
| CN202732620U (en) * | 2012-07-19 | 2013-02-13 | 钟振贤 | Locking screw with rotating pin locking teeth |
-
2012
- 2012-07-19 CN CN201210249770.0A patent/CN102758824B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US812663A (en) * | 1905-03-08 | 1906-02-13 | Alfred N Massie | Key-lock. |
| US1879290A (en) * | 1931-06-17 | 1932-09-27 | Johnson Laurance Benton | Lock nut and bolt |
| US3939889A (en) * | 1974-05-08 | 1976-02-24 | Ford Motor Company | Threaded assembly |
| CN202732620U (en) * | 2012-07-19 | 2013-02-13 | 钟振贤 | Locking screw with rotating pin locking teeth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102758824A (en) | 2012-10-31 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20180719 |