CN105240380A - Unidirectional rotation structure used for looseness preventing mechanical fastening mechanism - Google Patents
Unidirectional rotation structure used for looseness preventing mechanical fastening mechanism Download PDFInfo
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- CN105240380A CN105240380A CN201510633255.6A CN201510633255A CN105240380A CN 105240380 A CN105240380 A CN 105240380A CN 201510633255 A CN201510633255 A CN 201510633255A CN 105240380 A CN105240380 A CN 105240380A
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Abstract
The invention relates to a unidirectional rotation structure used for a looseness preventing mechanical fastening mechanism. The technical problem that an existing fastening mechanism gets loose easily is solved. The looseness preventing mechanical fastening mechanism comprises a bolt body. The bolt body is provided with two threaded sections connected with a compression nut and a looseness preventing nut through threads respectively; the thread directions of the two threaded sections are opposite. The unidirectional rotation structure comprises an adjusting ring arranged on the bolt body in a sleeving mode and located between the compression nut and the looseness preventing nut. A first unidirectional unit is arranged between the lower end of the compression nut and the upper end of the adjusting ring, and/or a second unidirectional unit is arranged between the lateral portion of the compression nut and the lateral portion of the adjusting ring. The unidirectional rotation structure has the advantages that unidirectional rotation of the compression nut and the adjusting ring can be achieved, the connection strength is high, the rotation directions of mechanical parts are adjusted reliably, stability is good, the looseness caused by connection can be prevented, and performance implementation of the looseness preventing mechanical fastening mechanism with the looseness prevention function is ensured.
Description
Technical field
The invention belongs to technical field of fastening, especially relate to a kind of one-way rotation structure for anti-loose mechanical retention mechanism.
Background technique
Screw pair retention mechanism is a kind of retention mechanism of common screw-thread fit, the modal fastening connection piece cooperatively interacted for bolts and nuts, realizes being threaded to machinery link by the screw thread of bolt.The switching performance of bolts and nuts is good, structure is simple, be widely used in technical field of mechanical equipment, but bolts and nuts also exist the defect easily loosened, the gap shaking link along with equipment frequently increases, and causes bolts and nuts to loosen, even comes off, the mutual break-off of connecting body is easily there is, serious easy generation security incident when like this some being mechanically connected.
In order to solve prior art Problems existing, people have carried out long-term exploration, propose solution miscellaneous.Such as, Chinese patent literature discloses a kind of compact form Anti-loose bolt [application number: 201220063479.X] mutually, is made up of screw rod, inner nut, outer nut.Screw flight is forward and reverse screw thread, and the internal thread of inner nut is forward screw thread, and the internal thread of outer nut is reverse thread.Inner nut and outer nut 2 ~ 12 anti-slip tanks are provided with to end face.Anti-slip tank is the structure raised gradually counterclockwise.
Such scheme improves the problem easily loosened when existing bolts and nuts connect to a certain extent, although such scheme at inner nut and outer nut to end face being provided with several anti-slip tanks, but the screw thread starting point of inner nut, outer nut, bolt is all uncertain, anti-slip tank is that very difficult realization is stuck object mutually.Even if can accidentally be stuck, but, it is low still to there is join strength in the program, when shaking large, inner nut and outer nut easily occur that gap or inner nut easily promote outer nut and to shrink back the problem causing loosening between inner nut and connecting body, and finally cause outer nut and inner nut to depart from bolt situation occurring.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of reasonable in design, structure simple, the one-way rotation structure of the anti-loose mechanical retention mechanism that can prevent.
For achieving the above object, present invention employs following technical proposal: this is used for the one-way rotation structure of anti-loose mechanical retention mechanism, anti-loose mechanical retention mechanism comprises the body of bolt, the described body of bolt has two respectively with gland nut with the thread section that anti-loosing nut screw thread is connected and the hand of spiral of two thread sections is contrary, it is characterized in that, this one-way rotation structure comprises and being set on the body of bolt and regulating ring between gland nut and anti-loosing nut, be provided with the first check unit between described gland nut underpart and regulating ring upper end portion and/or be provided with the second check unit between described gland nut sidepiece and regulating ring sidepiece.Preferably, here gland nut is connected by one-way rotation structure with between regulating ring, locate by one-way rotation structure and regulating ring are circumferential towards the gland nut described in when the circumference rotational motion of anti-loosing nut side or movement tendency when gland nut has to rotate relative to regulating ring circumference away from the gland nut described in when the circumference rotational motion of anti-loosing nut side or movement tendency and to have when gland nut, the position structure that regulating ring and anti-loosing nut can be made to locate is provided with between described regulating ring and anti-loosing nut, during use, when gland nut towards away from anti-loosing nut side circumference rotational motion or movement tendency time described in gland nut can relative to regulating ring circumference rotate, namely when gland nut is towards the motion of locking direction, gland nut can rotate relative to regulating ring circumference, gland nut and regulating ring are separated from each other, when compacted object exists, this athletic meeting is prevented from certain interval, anti-loosing nut is because one-way rotation structure can not depart from the body of bolt, locate by one-way rotation structure and regulating ring are circumferential towards the gland nut described in when the circumference rotational motion of anti-loosing nut side or movement tendency when gland nut has, simultaneously, because regulating ring and anti-loosing nut circumference are positioned together by circumferential positioning structure, and gland nut screw thread and anti-loosing nut screw thread are opposite direction screw threads, make gland nut cannot rotate towards anti-loosing nut side circumference like this, but the rotation potential energy of gland nut gives anti-loosing nut by one-way rotation structure through regulating ring transmission, drive anti-loosing nut to the circumferential rotational motion of gland nut side or movement tendency, gland nut is so just made to be in continuous self-tightening process all the time, then the auto-lock function of mechanism is realized, locate due to anti-loosing nut and regulating ring circumference simultaneously and make anti-loosing nut to depart from the body of bolt due to the existence of one-way rotation structure.
In the above-mentioned one-way rotation structure for anti-loose mechanical retention mechanism, the first described check unit comprises and is arranged on gland nut one end and the compression helicoid distributed in the shape of a spiral and be arranged on regulating ring one end and the cooperation helicoid distributed in the shape of a spiral, described compression helicoid with compress helicoid and match and forms one-way rotation helicoid pair.When gland nut has towards the circumference rotational motion of anti-loosing nut side or movement tendency, due to compression helicoid here with coordinate helicoid mutually against can make gland nut and regulating ring circumference locate, obviously, the structure of one-way rotation structure is varied, and those skilled in the art can also select other structures.
In the above-mentioned one-way rotation structure for anti-loose mechanical retention mechanism, formed between described compression helicoid one end and the body of bolt and compress spiral section, described cooperation helicoid one end coordinates spiral section with being formed between the body of bolt, and compression spiral section described in when gland nut and regulating ring circumference locates with coordinate spiral section energy mutual against.Namely by compressing spiral section and coordinating spiral section energy mutual to realizing gland nut and regulating ring is located mutually.
In the above-mentioned one-way rotation structure for anti-loose mechanical retention mechanism, described compression helicoid is involute helicoid with coordinating helicoid.Namely by the nonreversibility know-why that involute helicoid moves, thus the function of unidirectional movement is realized.
In the above-mentioned one-way rotation structure for anti-loose mechanical retention mechanism, described gland nut end is provided with the first involute heliconid, and the first described involute heliconid end face forms above-mentioned compression helicoid; Described regulating ring end has the second involute heliconid matched with the first involute heliconid, and the second described involute heliconid end face forms above-mentioned cooperation helicoid.
Here the first involute heliconid to insert in annular groove and cooperatively interacts with the second involute heliconid, which enhances the stability of connection.
In the above-mentioned one-way rotation structure for anti-loose mechanical retention mechanism, the Hand of spiral of described compression helicoid and cooperation helicoid is identical with the thread section hand of thread spiral that the body of bolt is connected with gland nut.This ensure that one-way rotation direction meets this retention mechanism and puts anti-loose demand.
In the above-mentioned one-way rotation structure for anti-loose mechanical retention mechanism, the outer circumferential, end of described regulating ring has annular groove, described outer circumferential, gland nut one end has the annular bead matched with annular groove, and the second described check unit is arranged between annular groove and annular bead.
In the above-mentioned one-way rotation structure for anti-loose mechanical retention mechanism, the second described check unit comprises at least one circumference and to be arranged between annular bead and annular groove and the wedge slot with wide portion and narrow portion, be provided with rolling element in described wedge slot, and described rolling element is connected with rolling element can be made to have towards the elastic support structure of the narrow portion side movement tendency of wedge slot.Adopt clutch type one-way rotation structure, when gland nut is towards the motion of locking direction, rolling element is by the effect of frictional force, be pulled to part wider in wedge slot, no longer wedging is in wedge slot, at this moment clutch is in separated state, and when gland nut is towards during away from the motion of locking direction, rolling element is subject to the effect of frictional force in wedge slot, to be realized gland nut by wedging and regulating ring circumference is located.
In the above-mentioned one-way rotation structure for anti-loose mechanical retention mechanism, described annular groove week has some inwardly protruded raised body to the inside, and forms above-mentioned wedge slot between adjacent two raised body.
In the above-mentioned one-way rotation structure for anti-loose mechanical retention mechanism, described elastic support structure comprises the supported spring be arranged in wedge slot, and described supported spring one end is against being arranged in raised body, and the other end acts on rolling element.
Compared with prior art, this advantage being used for the one-way rotation structure of anti-loose mechanical retention mechanism is: reasonable in design, structure is simple, the one-way rotation of gland nut and regulating ring can be realized, join strength is high, and mechanical parts sense of rotation regulates reliable, good stability, can prevent from occurring the phenomenon that gets loose when connecting, guarantee that the performance of the anti-loose mechanical retention mechanism with anti-loose function realizes.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of embodiment provided by the invention.
Fig. 2 is the half section structural representation of embodiment provided by the invention.
Fig. 3 is the gland nut half section structural representation of embodiment provided by the invention.
Fig. 4 is the plan structure schematic diagram of the gland nut of embodiment provided by the invention.
Fig. 5 is the half section structural representation of the regulating ring of embodiment provided by the invention.
Fig. 6 is the plan structure schematic diagram of the regulating ring of embodiment provided by the invention.
Fig. 7 be the regulating ring of embodiment provided by the invention look up structural representation.
Fig. 8 is the half section structural representation of second check unit of embodiment provided by the invention.
In figure, the body of bolt 1, gland nut 2, anti-loosing nut 3, regulating ring 4, first check unit 5, compression helicoid 51, cooperation helicoid 53, compression spiral section 54, first involute heliconid 55, cooperation spiral section 56, second involute heliconid 57, second check unit 6, annular groove 61, annular bead 62, wedge slot 63, rolling element 64, raised body 65, supported spring 66, one-way rotation helicoid pair 10.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As shown in Figure 1-2, this is used for the one-way rotation structure of anti-loose mechanical retention mechanism, anti-loose mechanical retention mechanism comprises the body of bolt 1, the body of bolt 1 has two respectively with gland nut 2 with the thread section that anti-loosing nut 3 screw thread is connected and the hand of spiral of two thread sections is contrary, this one-way rotation structure comprises and being set on the body of bolt 1 and regulating ring 4 between gland nut 2 and anti-loosing nut 3, be provided with the first check unit 5 between gland nut 2 underpart and regulating ring 4 upper end portion and/or be provided with the second check unit 6 between gland nut 2 sidepiece and regulating ring 4 sidepiece, preferably, here gland nut 2 is connected by one-way rotation structure with between regulating ring 4, to rotate relative to regulating ring 4 circumference away from gland nut 2 when the circumference rotational motion of anti-loosing nut 3 side or movement tendency when gland nut 2 has and to locate by one-way rotation structure and regulating ring 4 are circumferential towards gland nut 2 when the circumference rotational motion of anti-loosing nut 4 side or movement tendency when gland nut 2 has, the position structure that regulating ring 4 and anti-loosing nut 3 can be made to locate is provided with between regulating ring 4 and anti-loosing nut 3, during use, when gland nut 2 can rotate relative to regulating ring 4 circumference towards away from gland nut 2 when the circumference rotational motion of anti-loosing nut 3 side or movement tendency, namely when gland nut 2 is towards the motion of locking direction, gland nut 2 can rotate relative to regulating ring 4 circumference, gland nut 2 and regulating ring 4 are separated from each other, when compacted object exists, this athletic meeting is prevented from certain interval, anti-loosing nut 3 is because one-way rotation structure 5 can not depart from the body of bolt 1, located by one-way rotation structure 5 and regulating ring 4 circumference towards gland nut 2 when the circumference rotational motion of anti-loosing nut 3 side or movement tendency when gland nut 2 has, simultaneously because regulating ring 4 and anti-loosing nut 3 circumference are positioned together by circumferential positioning structure 6, and gland nut 2 screw thread and anti-loosing nut 3 screw thread are opposite direction screw threads, make gland nut 2 cannot rotate towards anti-loosing nut 3 side circumference like this, but the rotation potential energy of gland nut 2 gives anti-loosing nut 3 by one-way rotation structure 5 through regulating ring 4 transmission, drive anti-loosing nut 3 to the circumferential rotational motion of gland nut 2 side or movement tendency, gland nut 2 is so just made to be in continuous self-tightening process all the time, then the auto-lock function of mechanism is realized, locate due to anti-loosing nut 3 and regulating ring 4 circumference simultaneously and make anti-loosing nut 3 cannot depart from the body of bolt 1 due to the existence of one-way rotation structure 5.
Particularly, as illustrated in figs. 2-7, here the first check unit 5 comprises and is arranged on gland nut 2 one end and the compression helicoid 51 distributed in the shape of a spiral and be arranged on regulating ring 4 one end and the cooperation helicoid 53 distributed in the shape of a spiral, compression helicoid 51 matches with compression helicoid 51 and forms one-way rotation helicoid pair 10, when gland nut 2 has towards the circumference rotational motion of anti-loosing nut 3 side or movement tendency, due to compression helicoid 51 here, against making, gland nut 2 and regulating ring 4 are circumferential locates mutually with coordinating helicoid 53, obviously, the structure of one-way rotation structure 5 is varied, those skilled in the art can also select other structures.Here formed between compression helicoid 51 one end and the body of bolt 1 and compress spiral section 54, helicoid 53 one end is coordinated to coordinate spiral section 56 with being formed between the body of bolt 1, and compresses when gland nut 2 and regulating ring 4 circumference locates spiral section 54 with coordinate spiral section 56 energy mutual against, namely be resisted against coordinate on spiral section 56 and until cannot be rotated further according to gland nut 2 screw-threaded coupling direction by compressing spiral section 54, thus realize gland nut 2 and mutually locate with regulating ring 4.Preferably, compression helicoid 51 is here involute helicoid with coordinating helicoid 53, namely by the nonreversibility know-why that helicoid moves, thus realizes the function of unidirectional movement.
Preferably, here gland nut 2 end is provided with the first involute heliconid 55, and the first involute heliconid 55 end face forms above-mentioned compression helicoid 51, regulating ring 4 end has the second involute heliconid 57 matched with the first involute heliconid 55, and the second involute heliconid 57 end face forms above-mentioned cooperation helicoid 53.Namely the second above-mentioned involute heliconid 57 to be inserted on the first involute heliconid 55 and until to coordinate helicoid 53 to be resisted against to compress on helicoid 51 and cannot be rotated further according to gland nut 2 screw-threaded coupling direction, which enhance the stability of connection, in order to bonding meets the anti-loose demand of this retention mechanism to sense of rotation, the Hand of spiral of compression helicoid 51 here and cooperation helicoid 53 is identical with the thread section hand of thread spiral that gland nut 2 is connected with on the body of bolt 1.
Further, as shown in Fig. 1-2 and Fig. 8, the outer circumferential, end of the regulating ring 4 in the present embodiment has annular groove 61, outer circumferential, gland nut 2 one end has the annular bead 62 matched with annular groove 61, and the second check unit 6 is arranged between annular groove 61 and annular bead 62.Wherein, here the second check unit 6 comprises at least one circumference and to be arranged between annular bead 62 and annular groove 61 and the wedge slot 63 with wide portion and narrow portion, rolling element 64 is provided with in wedge slot 63, and rolling element 64 is connected with rolling element 64 can be made to have towards the elastic support structure of the narrow portion side movement tendency of wedge slot 63, adopt clutch type one-way rotation structure, when gland nut 2 is towards the motion of locking direction, rolling element 64 is by the effect of frictional force, be pulled to part wider in wedge slot 63, no longer wedging is in wedge slot 63, at this moment clutch is in separated state, when gland nut 2 is towards during away from the motion of locking direction, rolling element 64 is subject to the effect of frictional force in wedge slot 63, to be realized gland nut 2 by wedging and regulating ring 4 circumference is located, preferably, here annular groove has some inwardly protruded raised body 65 for 61 weeks to the inside, and form above-mentioned wedge slot 63 between adjacent two raised body 65, here elastic support structure comprises the supported spring 66 be arranged in wedge slot 63, and supported spring 66 one end is against being arranged in raised body 65, the other end acts on rolling element 64.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the body of bolt 1, gland nut 2, anti-loosing nut 3, regulating ring 4, first check unit 5 herein, compress helicoid 51, coordinate helicoid 53, compress spiral section 54, first involute heliconid 55, coordinate the terms such as spiral section 56, second involute heliconid 57, second check unit 6, annular groove 61, annular bead 62, wedge slot 63, rolling element 64, raised body 65, supported spring 66, one-way rotation helicoid pair 10, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (10)
1. the one-way rotation structure for anti-loose mechanical retention mechanism, anti-loose mechanical retention mechanism comprises the body of bolt (1), the described body of bolt (1) has two respectively with gland nut (2) with the thread section that anti-loosing nut (3) screw thread is connected and the hand of spiral of two thread sections is contrary, it is characterized in that, this one-way rotation structure comprises and is set in the upper and regulating ring (4) be positioned between gland nut (2) and anti-loosing nut (3) of the body of bolt (1), be provided with the first check unit (5) between described gland nut (2) underpart and regulating ring (4) upper end portion and/or be provided with the second check unit (6) between described gland nut (2) sidepiece and regulating ring (4) sidepiece.
2. the one-way rotation structure for anti-loose mechanical retention mechanism according to claim 1, it is characterized in that, described the first check unit (5) comprises and is arranged on gland nut (2) one end and the compression helicoid (51) distributed in the shape of a spiral and be arranged on regulating ring (4) one end and the cooperation helicoid (53) distributed in the shape of a spiral, described compression helicoid (51) with compress helicoid (51) and match and form one-way rotation helicoid pair (10).
3. the one-way rotation structure for anti-loose mechanical retention mechanism according to claim 2, it is characterized in that, formed between described compression helicoid (51) one end and the body of bolt (1) and compress spiral section (54), described cooperation helicoid (53) one end coordinates spiral section (56) with being formed between the body of bolt (1), and compression spiral section (54) described in when gland nut (2) and regulating ring (4) circumference locates with coordinate spiral section (56) energy mutual against.
4. the one-way rotation structure for anti-loose mechanical retention mechanism according to Claims 2 or 3, is characterized in that, described compression helicoid (51) is involute helicoid with coordinating helicoid (53).
5. the one-way rotation structure for anti-loose mechanical retention mechanism according to claim 4, it is characterized in that, described gland nut (2) end is provided with the first involute heliconid (55), and the first described involute heliconid (55) end face forms above-mentioned compression helicoid (51); Described regulating ring (4) end has the second involute heliconid (57) matched with the first involute heliconid (55), and the second described involute heliconid (57) end face forms above-mentioned cooperation helicoid (53).
6. the one-way rotation structure for anti-loose mechanical retention mechanism according to claim 5, it is characterized in that, the Hand of spiral of described compression helicoid (51) and cooperation helicoid (53) is upper identical with the thread section hand of thread spiral that gland nut (2) is connected with the body of bolt (1).
7. according to the one-way rotation structure for anti-loose mechanical retention mechanism described in any one in claim 1-6, it is characterized in that, the outer circumferential, end of described regulating ring (4) has annular groove (61), described gland nut (2) outer circumferential, one end has the annular bead (62) matched with annular groove (61), and described the second check unit (6) is arranged between annular groove (61) and annular bead (62).
8. the one-way rotation structure for anti-loose mechanical retention mechanism according to claim 7, it is characterized in that, described the second check unit (6) comprises at least one circumference and to be arranged between annular bead (62) and annular groove (61) and the wedge slot (63) with wide portion and narrow portion, be provided with rolling element (64) in described wedge slot (63), and described rolling element (64) is connected with rolling element (64) can be made to have towards the elastic support structure of the narrow portion side movement tendency of wedge slot (63).
9. the one-way rotation structure for anti-loose mechanical retention mechanism according to claim 2, it is characterized in that, described annular groove (61) week has some inwardly protruded raised body (65) to the inside, and forms above-mentioned wedge slot (63) between adjacent two raised body (65).
10. the one-way rotation structure for anti-loose mechanical retention mechanism according to claim 3, it is characterized in that, described elastic support structure comprises the supported spring (66) be arranged in wedge slot (63), and described supported spring (66) one end is against being arranged in raised body (65), the other end acts on rolling element (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633255.6A CN105240380B (en) | 2015-09-29 | 2015-09-29 | One-directional rotation structure for anti-loose mechanical retention mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510633255.6A CN105240380B (en) | 2015-09-29 | 2015-09-29 | One-directional rotation structure for anti-loose mechanical retention mechanism |
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| CN105240380A true CN105240380A (en) | 2016-01-13 |
| CN105240380B CN105240380B (en) | 2018-04-13 |
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| CN201510633255.6A Active CN105240380B (en) | 2015-09-29 | 2015-09-29 | One-directional rotation structure for anti-loose mechanical retention mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110285130A (en) * | 2019-07-08 | 2019-09-27 | 温州远协电子科技有限公司 | A kind of quick anti-loose fastening device and its assembly and application method |
| CN113007197A (en) * | 2021-03-24 | 2021-06-22 | 陈熙丰 | Automobile accessory is with bolt assembly that helps anticreep |
| CN117357207A (en) * | 2023-12-05 | 2024-01-09 | 启晨(上海)医疗器械有限公司 | Conveying system for deep vein thrombosis removing device under trunk |
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| CN205207389U (en) * | 2015-09-29 | 2016-05-04 | 玉环胜友工具有限公司 | A unidirectional rotating structure for locking mechanical fastening mechanism that takes off |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110285130A (en) * | 2019-07-08 | 2019-09-27 | 温州远协电子科技有限公司 | A kind of quick anti-loose fastening device and its assembly and application method |
| CN110285130B (en) * | 2019-07-08 | 2020-12-15 | 台州道业科技有限公司 | Quick anti-loosening fastening device and assembling and using method thereof |
| CN113007197A (en) * | 2021-03-24 | 2021-06-22 | 陈熙丰 | Automobile accessory is with bolt assembly that helps anticreep |
| CN113007197B (en) * | 2021-03-24 | 2022-11-11 | 苏州誉高紧固系统有限公司 | Auto parts is with bolt assembly that helps anticreep |
| CN117357207A (en) * | 2023-12-05 | 2024-01-09 | 启晨(上海)医疗器械有限公司 | Conveying system for deep vein thrombosis removing device under trunk |
| CN117357207B (en) * | 2023-12-05 | 2024-04-16 | 启晨(上海)医疗器械有限公司 | Conveying system for deep vein thrombosis removing device under trunk |
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|---|---|
| CN105240380B (en) | 2018-04-13 |
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