CN204327712U - Self-locking nut and self-locking device - Google Patents
Self-locking nut and self-locking device Download PDFInfo
- Publication number
- CN204327712U CN204327712U CN201420738432.8U CN201420738432U CN204327712U CN 204327712 U CN204327712 U CN 204327712U CN 201420738432 U CN201420738432 U CN 201420738432U CN 204327712 U CN204327712 U CN 204327712U
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- nut
- locking
- self
- locking plate
- packing ring
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- 238000012856 packing Methods 0.000 claims description 85
- 230000008901 benefit Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides a kind of self-locking nut and self-locking device, this self-locking nut comprises nut body, nut body is provided with internal thread, one end of nut body is axially outward extended with internal diameter and diminishes gradually and have flexible nut locking plate, the extending end internal diameter of nut locking plate is less than the internal thread path of nut body, nut locking plate is provided with internal thread one-time formed with the internal thread of nut body, and the extending end of nut locking plate is circumferentially with stressed can opening or the first closed opening.When self-locking nut of the present utility model matches with bolt and is fastenedly connected, the frictional force between this self-locking nut and bolt can be increased, realize locking self-locking object, simple, the easy dismounting of its structure, and not by the impact of ambient temperature, there is the advantage of locking self-locking good reliability.
Description
Technical field
The utility model relates to fastening piece connection technique field, particularly a kind of self-locking nut and self-locking device.
Background technique
Scyewed joint is that a kind of common fastening piece connects form, and it has the advantage that structure is simple and cost is low, therefore is widely used on automobile.Under normal circumstances, when under dead weight, and when temperature change is little, normal thread connects can realize auto-lock function.But when under shock and vibration, varying load effect or when temperature change is larger, normal thread connects the premature failure phenomenons such as easily generation loosens, thus affects travelling comfort and the Security of car load, therefore double thread connection takes locking measure extremely important.
In prior art, the locking measure of scyewed joint usually adopts elastic washer, double nut, has the nut of elastic ring, slotted nut, series connection steel wire, be coated with adhesive, soldering etc.Because elastic washer is when impaction state, its discontinuity, its locking reliability is poor; Double nut only has one of them nut in running order usually, therefore its locking reliability is poor; Have fiber embedded in the nut of elastic ring or nylon elastic packing ring temperature influence comparatively large, thus easily cause locking inefficacy, its locking reliability is poor; Slotted nut and series connection steel wire, the complex process of these two kinds of locking measures, not easy to assemble; Painting adhesive and these two kinds of locking measures of soldering are usually applied to and one-time fix installation, and its dismounting pole is not easy.
Model utility content
In view of this, the utility model is intended to propose a kind of self-locking nut and self-locking device, to solve threaded connection locking poor reliability, not easy-to-dismount technical problem.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of self-locking nut, comprise nut body, described nut body is provided with internal thread, one end of described nut body is axially outward extended with internal diameter and diminishes gradually and have flexible nut locking plate, the extending end internal diameter of described nut locking plate is less than the internal thread path of described nut body, described nut locking plate is provided with internal thread one-time formed with the internal thread of described nut body, and the extending end of described nut locking plate is circumferentially with stressed can opening or the first closed opening.
Further, described first opening is provided with three, and circumference is evenly arranged.
Further, along the bearing of trend of described nut locking plate, the external diameter of described nut locking plate diminishes gradually.
Further, the other end of described nut body is provided with along it axially from the nut stern notch that internal diameter outside to inside diminishes gradually, and the path of described nut stern notch is not less than the large footpath of internal thread of described nut body.
Relative to prior art, self-locking nut described in the utility model has following advantage:
When by this self-locking nut and bolt (or screw, stud etc.) match fastening connection piece time, under twisting force, when this self-locking nut is screwed on bolt, because the internal diameter of the nut locking plate of this nut body one end diminishes gradually along its bearing of trend, its extending end diameter is less than Minor diameter of screw, first opening of its extending end expands and opens by bolt, and under elastic force effect, to bolt, there is the effect of holding tightly, thus the frictional force increased between this self-locking nut and bolt, realize locking self-locking object, this kind of self-locking manner mainly relies on the resiliently deformable of nut locking plate to realize, its structure is simple, easy dismounting, and not by the impact of ambient temperature, there is the advantage of locking self-locking good reliability.
A kind of self-locking device, except being provided with above-mentioned self-locking nut, is also provided with self-locking packing ring;
Described self-locking packing ring comprises washer body, described washer body is provided with through hole, one end of described washer body is axially outward extended with external diameter and diminishes gradually and have flexible packing ring locking plate, the diameter of described through hole and the internal diameter of described packing ring locking plate are all greater than the large footpath of internal thread of described nut body, described packing ring locking plate is provided with the internal thread identical with described nut body, the extending end of described packing ring locking plate is circumferentially with stressed can opening or the second closed opening, and described packing ring locking plate is inserted in described nut stern notch.
Further, described second opening is provided with three, and circumference is evenly arranged.
Further, along the bearing of trend of described packing ring locking plate, the internal diameter of described packing ring locking plate becomes large setting gradually.
Further, the male cone (strobilus masculinus) of described packing ring locking plate is that face contacts with the inner conical surface of described nut stern notch.
Relative to prior art, self-locking device described in the utility model has following advantage:
This self-locking device, except being provided with above-mentioned self-locking nut, is also provided with self-locking packing ring; This self-locking nut is provided with along it axially from the nut stern notch that internal diameter outside to inside diminishes gradually, one end of this self-locking packing ring is provided with packing ring locking plate, and packing ring locking plate is provided with internal thread, the excircle of packing ring locking plate diminishes gradually along its bearing of trend external diameter, and is inserted in nut stern notch.In use, when being screwed into bolt (or screw, stud etc.) after both being assembled and being upper, nut stern notch is by packing washer locking plate, and make packing ring locking plate radially-inwardly resiliently deformable occur, interaction force is produced between the two in this resiliently deformable process, thus packing ring locking plate generation bounce-back expansive force and self-locking nut are closely connected, and closely cooperate with bolt, increase the frictional force of packing ring locking plate and bolt, thus make packing ring locking plate automatically hold bolt tightly, play the effect of automatic loose proof self-locking.In addition, as mentioned above, also have automatic loose proof auto-lock function between nut locking plate and bolt, therefore this self-locking device has dual locking auto-lock function, its locking self-locking reliability strengthens further, and has the simple and easy-to-disassemble and assemble advantage of structure.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the perspective view of the self-locking nut described in the utility model embodiment one;
Fig. 2 is the plan view of the self-locking nut described in Fig. 1;
Fig. 3 is the plan view of the self-locking nut described in Fig. 2;
The A-A sectional view that Fig. 4 is the self-locking nut described in Fig. 3;
Fig. 5 in the self-locking device described in the utility model embodiment two, described self-locking packing ring perspective view;
Fig. 6 is the plan view of the self-locking packing ring described in Fig. 5;
Fig. 7 is the B-B sectional view of the self-locking packing ring described in Fig. 6;
Fig. 8 installs and uses sectional view for the self-locking device described in the utility model embodiment two.
Description of reference numerals:
1-self-locking nut, 2-self-locking packing ring, 3-bolt, 4-workpiece;
101-nut body, 102-nut locking plate, 103-nut stern notch, 104-first opening;
201-washer body, 202-packing ring locking plate, 203-second opening.
D
0-nut locking plate end internal diameter;
The large footpath of D-nut stern notch;
H-nut stern notch height;
The angle of β-between nut stern notch bus and its cross section;
During γ-nut locking plate free state, the angle between its inner cone bus and its axis;
D-packing ring locking plate end external diameter;
H-packing ring locking plate height;
The angle of α-between packing ring locking plate inner cone bus and its axis;
The angle of β '-between packing ring locking plate outer cone bus and its cross section.
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
In the utility model, the extending end of nut locking plate refers to: along the bearing of trend of nut locking plate, the end of nut locking plate; In like manner, the extending end of packing ring locking plate refers to: along the bearing of trend of packing ring locking plate, the end of packing ring locking plate.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Embodiment one
The present embodiment is a kind of self-locking nut, as Figure 1-Figure 4, comprise nut body 101, nut body 101 is provided with internal thread, one end of nut body 101 is axially outward extended with internal diameter and diminishes gradually and have flexible nut locking plate 102, and the extending end internal diameter of nut locking plate 102 is less than the internal thread path of nut body 101; Nut locking plate 102 is provided with internal thread one-time formed with the internal thread of nut body 101, and the extending end of nut locking plate 102 is circumferentially with stressed can opening or the first closed opening 104.
When this self-locking nut is matched with bolt (or screw, stud etc.) fastening connection piece time, under twisting force, this self-locking nut is screwed on bolt, because the internal diameter of nut locking plate 102 diminishes gradually along its bearing of trend, form an inner conical face structure, the angle between inner cone bus and its axis is designated
γangle, its end diameter (D as shown in Figure 4
0) be less than Minor diameter of screw, first opening 104 of its extending end expands and opens by bolt, and under elastic force effect, to bolt, there is the effect of holding tightly, thus increase the frictional force between this self-locking nut and bolt, realize the object of automatic loose proof self-locking, this kind of self-locking manner mainly relies on the resiliently deformable of nut locking plate 102 to realize, its structure is simple, easily dismounting, and not by the impact of ambient temperature, has the advantage of locking self-locking good reliability.
As a kind of special case, nut body 101 and the internal diameter of nut locking plate 102 joint can be arranged to equal diameter size, namely both in its joint for seamlessly transitting.
In the present embodiment, the first opening 104 that three circumferences are evenly arranged can be arranged to, this kind of vibrational power flow, bolt (or screw, stud etc.) can not only be held tightly, reach the object of automatic loose proof self-locking, also there is stress equalization, structure advantage that is simple and that easily process.The first opening 104 of other quantity can certainly be arranged to, such as: 2,4,5 ... Deng, and circumference is evenly arranged.
In the present embodiment, along the bearing of trend of nut locking plate 102, the external diameter of nut locking plate 102 can be diminished gradually, so arrange, on the basis ensureing the locking self-locking property of nut locking plate 102, the elasticity of nut locking plate 102 can be strengthened.In this kind of structural type, fan-shaped ring nut locking plate 102 structure that nut locking plate 102 circumference is divided into respective numbers to arrange separately by the first opening 104 uniformly, as Figure 1-3.
In addition, in order to be used in combination with corresponding self-locking gasket, in the present embodiment, the other end of nut body 101 can also be provided with along it axially from the nut stern notch 103 that internal diameter outside to inside diminishes gradually, form an inner conical surface, as shown in Figure 4, and this nut stern notch 103 is arranged to the large footpath of internal thread that its path is not less than nut body 101, when deployed, corresponding self-locking gasket is inserted in nut stern notch 103.
In the present embodiment, the angle between the inner cone bus formed by nut stern notch 103 and its cross section is designated β angle, and its Outside diameter is designated D, and its height (degree of depth) is designated H.
Embodiment two
The present embodiment is a kind of self-locking device, as shown in Figure 8, except being provided with the self-locking nut 1 in above-described embodiment one, is also provided with self-locking packing ring 2.
In the present embodiment, as shown in Figure 5-Figure 7, self-locking packing ring 2 comprises washer body 201, washer body 201 is provided with through hole, one end of washer body 201 is axially outward extended with external diameter and diminishes gradually and have flexible packing ring locking plate 202, and the diameter of through hole and the internal diameter of packing ring locking plate 202 are all greater than the large footpath of internal thread of nut body 101; Packing ring locking plate 202 is provided with the internal thread identical with nut body 101, and the extending end of packing ring locking plate 202 is circumferentially with stressed can opening or the second closed opening 203; Packing ring locking plate 202 is inserted in nut stern notch 103.
This self-locking device is not only provided with above-mentioned self-locking nut 1, is also provided with self-locking packing ring 2; This self-locking nut 1 is provided with along it axially from the nut stern notch 103 that internal diameter outside to inside diminishes gradually; One end of this washer body 201 is provided with packing ring locking plate 202, and packing ring locking plate 202 is provided with internal thread, the excircle of packing ring locking plate 202 diminishes gradually along its bearing of trend external diameter, form an outer conical surface, and the end of packing ring locking plate 202 is provided with stressed can opening or the second closed opening 203, as shown in Figure 7, and this packing ring locking plate 202 is inserted in nut stern notch 103.In use, when both being screwed into bolt (or screw, stud etc.) upper time, nut stern notch 103 is by packing washer locking plate 202, due to the setting of the second opening 203, packing ring locking plate 202 can be made radially-inwardly resiliently deformable to occur to it, interaction force is produced between the two in this resiliently deformable process, thus make packing ring locking plate 202 produce bounce-back expansive force, and be closely connected with self-locking nut 1, also closely cooperate with bolt 3, increase the frictional force of packing ring locking plate 202 and bolt, thus make packing ring locking plate 202 automatically hold bolt tightly, play the effect of automatic loose proof self-locking.In addition, also have automatic loose proof auto-lock function between nut locking plate 102 and bolt, therefore this self-locking device has dual locking auto-lock function, its locking self-locking reliability strengthens further, and has the simple and easy-to-disassemble and assemble advantage of structure.
As a special case, the washer body 201 in the present embodiment can be arranged to equal diameter with the internal diameter of packing ring locking plate 202 joint, make inner-diameter portion whose transitions smooth both it.
In the present embodiment, the angle between the outer cone bus formed by packing ring locking plate 202 and its cross section is designated β ', and the height identification of packing ring locking plate 202 is h, and its end external diameter is designated d.
More smooth and easy in the process being inserted in nut stern notch 103 to make packing ring locking plate 202, and ensure, between the two everywhere for face contacts, both to be arranged to: β=β ', H > h, D > d.In addition, because packing ring locking plate 202 has certain thickness, therefore its end outside diameter d must be greater than the large footpath of bolt 3, therefore packing ring locking plate 202 will rest on a certain position of nut stern notch 103, thus can not touch the miner diameter end of nut stern notch 103.
As shown in Figure 5-Figure 7, in the present embodiment, the second opening 203 that three circumferences are evenly arranged can be set, this kind of vibrational power flow, bolt 3 (or screw, stud etc.) can not only be held tightly, reach the object of automatic loose proof self-locking, also there is stress equalization, structure advantage that is simple and that easily process.
Along the bearing of trend of packing ring locking plate 202, the internal diameter of packing ring locking plate 202 becomes large setting gradually, this kind of vibrational power flow, packing ring locking plate 202 radially outward can be made slightly to tilt at (α angle as shown in Figure 7), when contact with nut stern notch 103 coordinate time, impacting force when contacting can be strengthened between the two, make to connect more fastening between the two, be not easy to depart from, strengthen the locking self-locking property of whole device further.
In this kind of structural type, fan-shaped ring packing ring locking plate 202 structure that packing ring locking plate 202 circumference is divided into respective numbers to arrange separately by the second opening 203 uniformly, as Figure 1-3.
After making to compress between self-locking nut 1 and self-locking packing ring 2, stressed more even, can be that face contacts by the inner conical surface of nut stern notch 103 and the male cone (strobilus masculinus) of packing ring locking plate 202, thus increase lifting surface area between the two, reach the object of uniform force.
In the present embodiment, this self-locking device automatic loose proof self-lock mechanism: as shown in Figure 8, first self-locking nut 1 and self-locking packing ring 2 are combined, closely be inserted in nut stern notch 103 by packing ring locking plate 202, then both are screwed on bolt 3, when workpiece 4 is subject to External Force Acting appearance to A ' to loosening trend, because nut locking plate 102 and packing ring locking plate 202 have to bolt the effect of holding tightly jointly, thus increase the frictional force of whole self-locking device and bolt holder, at self-locking nut 1 with under the acting in conjunction of self-locking packing ring 2, dual automatic loose proof auto-lock function is played in this direction, in like manner, when workpiece 4 is subject to External Force Acting appearance to B ' to loosening trend, because nut stern notch 103 pairs of packing ring locking plates 202 are applied with larger impacting force, packing ring locking plate 202 pairs of bolts 3 are made to create larger enclasping force, namely the frictional force between self-locking packing ring 2 and bolt 3 is increased, thus anti-direction here loosens, and reaches the object of automatic loose proof self-locking.
In addition, in the present embodiment, self-locking nut 1 and self-locking packing ring 2 define an assembly, owing to having interaction force between the inner conical surface of nut stern notch 103 and the male cone (strobilus masculinus) of packing ring locking plate 202, this modular construction is stablized, is convenient to realize Automated assembly.Certainly, under certain External Force Acting, self-locking packing ring 2 can take out from nut stern notch 103, and its reusability is stronger.
Embodiment three
The present embodiment is another kind of self-locking device, can be provided with the self-locking nut 1 in above-mentioned enforcement one and other any enforceable packing rings of the prior art.
The Dominant Facies that in this self-locking device and embodiment one, self-locking nut 1 has relative to prior art with, therefore not repeat them here.
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 (8)
1. a self-locking nut, comprise nut body (101), described nut body (101) is provided with internal thread, it is characterized in that, one end of described nut body (101) is axially outward extended with internal diameter and diminishes gradually and have flexible nut locking plate (102), the extending end internal diameter of described nut locking plate (102) is less than the internal thread path of described nut body (101), described nut locking plate (102) is provided with the one-time formed internal thread of internal thread with described nut body (101), the extending end of described nut locking plate (102) is circumferentially with stressed can opening or closed the first opening (104).
2. self-locking nut according to claim 1, is characterized in that, described first opening (104) is provided with three, and circumference is evenly arranged.
3. self-locking nut according to claim 2, is characterized in that, along the bearing of trend of described nut locking plate (102), the external diameter of described nut locking plate (102) diminishes gradually.
4. the self-locking nut according to claim 1,2 or 3, it is characterized in that, the other end of described nut body (101) is provided with along it axially from the nut stern notch (103) that internal diameter outside to inside diminishes gradually, and the path of described nut stern notch (103) is not less than the large footpath of internal thread of described nut body (101).
5. a self-locking device, is characterized in that, is provided with self-locking nut as claimed in claim 4, is also provided with self-locking packing ring;
Described self-locking packing ring comprises washer body (201), described washer body (201) is provided with through hole, one end of described washer body (201) is axially outward extended with external diameter and diminishes gradually and have flexible packing ring locking plate (202), and the diameter of described through hole and the internal diameter of described packing ring locking plate (202) are all greater than the large footpath of internal thread of described nut body (101); Described packing ring locking plate (202) is provided with the internal thread identical with described nut body (101), and the extending end of described packing ring locking plate (202) is circumferentially with stressed can opening or closed the second opening (203); Described packing ring locking plate (202) is inserted in described nut stern notch (103).
6. self-locking device according to claim 5, is characterized in that, described second opening (203) is provided with three, and circumference is evenly arranged.
7. the self-locking device according to claim 5 or 6, is characterized in that, along the bearing of trend of described packing ring locking plate (202), the internal diameter of described packing ring locking plate (202) becomes large setting gradually.
8. the self-locking device according to claim 5 or 6, is characterized in that, the male cone (strobilus masculinus) of described packing ring locking plate (202) is that face contacts with the inner conical surface of described nut stern notch (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738432.8U CN204327712U (en) | 2014-11-28 | 2014-11-28 | Self-locking nut and self-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738432.8U CN204327712U (en) | 2014-11-28 | 2014-11-28 | Self-locking nut and self-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327712U true CN204327712U (en) | 2015-05-13 |
Family
ID=53164079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420738432.8U Expired - Fee Related CN204327712U (en) | 2014-11-28 | 2014-11-28 | Self-locking nut and self-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327712U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194970A (en) * | 2016-08-30 | 2016-12-07 | 云南电网有限责任公司玉溪供电局 | Anti-theft bolt |
| CN109296622A (en) * | 2018-12-07 | 2019-02-01 | 江西洪都航空工业集团有限责任公司 | A kind of anti-loosening structure for thread connection under space constraint |
| CN110360207A (en) * | 2019-07-31 | 2019-10-22 | 嘉兴同辉汽配有限公司 | A kind of check bolt for automobile lamp |
| CN111963534A (en) * | 2020-08-18 | 2020-11-20 | 中国航发沈阳发动机研究所 | Self-locking connection structure of annular casing and spoke plate |
| CN113728172A (en) * | 2019-04-29 | 2021-11-30 | 沃尔沃卡车集团 | Hub locking nut assembly |
| CN114060386A (en) * | 2020-07-31 | 2022-02-18 | 马占军 | Standardized anti-loose bolt and nut assembly for railway large-scale assembly |
| CN114439835A (en) * | 2021-12-24 | 2022-05-06 | 河南航天精工制造有限公司 | Sealing cover of nut component and nut component |
| CN114941647A (en) * | 2022-04-11 | 2022-08-26 | 烟台艾迪艾创机器人科技有限公司 | Self-locking nut |
| CN115163642A (en) * | 2022-07-21 | 2022-10-11 | 上海铁院轨道交通科技有限公司 | Locknut capable of displaying axial force |
-
2014
- 2014-11-28 CN CN201420738432.8U patent/CN204327712U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194970A (en) * | 2016-08-30 | 2016-12-07 | 云南电网有限责任公司玉溪供电局 | Anti-theft bolt |
| CN109296622A (en) * | 2018-12-07 | 2019-02-01 | 江西洪都航空工业集团有限责任公司 | A kind of anti-loosening structure for thread connection under space constraint |
| CN113728172A (en) * | 2019-04-29 | 2021-11-30 | 沃尔沃卡车集团 | Hub locking nut assembly |
| CN113728172B (en) * | 2019-04-29 | 2023-09-22 | 沃尔沃卡车集团 | Hub lock nut assembly |
| US12109842B2 (en) | 2019-04-29 | 2024-10-08 | Volvo Truck Corporation | Hub lock nut assembly |
| CN110360207A (en) * | 2019-07-31 | 2019-10-22 | 嘉兴同辉汽配有限公司 | A kind of check bolt for automobile lamp |
| CN114060386A (en) * | 2020-07-31 | 2022-02-18 | 马占军 | Standardized anti-loose bolt and nut assembly for railway large-scale assembly |
| CN111963534A (en) * | 2020-08-18 | 2020-11-20 | 中国航发沈阳发动机研究所 | Self-locking connection structure of annular casing and spoke plate |
| CN114439835A (en) * | 2021-12-24 | 2022-05-06 | 河南航天精工制造有限公司 | Sealing cover of nut component and nut component |
| CN114439835B (en) * | 2021-12-24 | 2024-05-31 | 河南航天精工制造有限公司 | Sealing cover of nut assembly and nut assembly |
| CN114941647A (en) * | 2022-04-11 | 2022-08-26 | 烟台艾迪艾创机器人科技有限公司 | Self-locking nut |
| CN115163642A (en) * | 2022-07-21 | 2022-10-11 | 上海铁院轨道交通科技有限公司 | Locknut capable of displaying axial force |
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| Date | Code | Title | Description |
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| 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: 20150513 |
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| CF01 | Termination of patent right due to non-payment of annual fee |