CN207701576U - Stop nut and locking fastening assembly - Google Patents
Stop nut and locking fastening assembly Download PDFInfo
- Publication number
- CN207701576U CN207701576U CN201721377624.0U CN201721377624U CN207701576U CN 207701576 U CN207701576 U CN 207701576U CN 201721377624 U CN201721377624 U CN 201721377624U CN 207701576 U CN207701576 U CN 207701576U
- Authority
- CN
- China
- Prior art keywords
- coil
- chamber
- stop nut
- connecting portion
- limiting section
- 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 is related to a kind of stop nuts, including：Spiral spring piece, with first coil portion adjacent to each other and the second coil part, first coil portion is less than the second coil part on radial dimension, the free end of first coil portion has the first connecting portion to extend radially outwardly, the free end of second coil part has the second connecting portion that extends radially outwardly, and the wire rod of first coil portion and the second coil part is by circularly screw winding；And cylinder, its both ends is unlimited, it is formed with the accommodating chamber for accommodating spiral spring piece between its ends between, accommodating chamber includes the first chamber and the second chamber, it is adjacent to the accommodating chamber in cylinder and is equipped with one section of threaded hole, second chamber is more than the first chamber on radial dimension, first coil portion is contained in the first chamber, second coil part is contained in the second chamber, the first limiting section and the second limiting section are equipped on the side wall of accommodating chamber, first connecting portion stretches into the first limiting section, and first connecting portion is circumferentially movable along cylinder.
Description
Technical field
The utility model is related to a kind of anti-loose fasteners, in particular to stop nut.
Background technology
In fields such as automobile, aerospace and rail traffics, largely connection is realized using threaded fastener in a device,
But for the shock loading and alternating load of high intensity in the case of, the anti-loose problem long-term existence of threaded fastener is existing
Some anti-loose structures are complicated, and dismounting is complicated and must use specific purpose tool, and dismounting is inconvenient, time-consuming and laborious, and work is caused to be imitated
Rate is low.
Utility model content
For the drawbacks described above of the prior art, the utility model provides a kind of stop nut, including：
Spiral spring piece has first coil portion adjacent to each other and the second coil part, and first coil portion is in radial dimension
Upper to be less than the second coil part, the free end of first coil portion has the first connecting portion to extend radially outwardly, the second coil part
Free end has the second connecting portion that extends radially outwardly, and the wire rod of first coil portion and the second coil part is by circularly spiral shell
Circumvolution around；And
Cylinder, both ends are unlimited, and are formed with the accommodating chamber for accommodating spiral spring piece, accommodating chamber packet between its ends between
The first chamber and the second chamber are included, one section of threaded hole that the accommodating chamber is equipped with is adjacent in cylinder, the second chamber is on radial dimension
More than the first chamber, first coil portion is contained in the first chamber, and the second coil part is contained in the second chamber, on the side wall of accommodating chamber
Equipped with the first limiting section and the second limiting section, first connecting portion stretches into the first limiting section, and first connecting portion circumferentially may be used along cylinder
It is dynamic, and the circumferential movement of first connecting portion is limited in the spatial dimension limited by the first limiting section, second connecting portion quilt
It is securely maintained in the second limiting section.
Further, the first limiting section is configured to the recess portion formed on the side wall of the first chamber, and first connecting portion stretches into
Recess portion, spatial dimension are limited by recess portion.
Further, the first limiting section is configured to the open slot formed on the side wall of the first chamber, and first connecting portion is stretched
Enter open slot, spatial dimension is limited by open slot.
Further, the first limiting section is configured to formed on the side wall of the first chamber two protrusions, and two protrusions exist
Cylinder is circumferentially upper opposite and spaced apart, and first connecting portion is blocked between two protrusions, and spatial dimension is limited at two protrusions
Between.
Further, the coil of first coil portion and/or the second coil part is wound isometrically.
Further, a part of line of the end coil that the free end of the second coil part is located at relative to the second coil part
Circle is oppositely wound.
Further, the end coil where the free end of the second coil part is winding to the direction first of its adjacent windings
The side of coil part.
Further, there is gap radially between the second coil part and first coil portion.
Further, the second coil part and first coil portion are coaxial lines.
Further, stop nut includes the spring maintaining part for the open end for being adjacent to the second chamber for being located at cylinder, spring
Maintaining part is for spiral spring piece to be maintained in accommodating chamber.
Further, spring maintaining part includes the flange extended in the second chamber, and flange bears against the upper of the second coil part
Side.
Further, flange is extended radially inwardly from the inward flange of open end or the side wall of the second chamber.
Further, stop nut includes the multiple flanges being circumferentially arranged at interval.
Further, second connecting portion is configured to be rolled over and the U that is formed from the free end wire rod of first coil portion to back bending
Type portion.
The utility model also provides a kind of locking fastening assembly, including bolt and above-mentioned stop nut, and bolt passes through cloth
The threaded hole for setting spiral spring piece and stop nut in accommodating chamber is threadedly engaged.
One purpose of the utility model is that improvement nut is locking under the shock loading and alternating load of high intensity
De- problem；
Another purpose of the utility model is so that stop nut is easier to disassemble from bolt, and is not necessarily to make
With specific purpose tool, removal efficiency higher.
Another purpose of the utility model is during dismantling stop nut, to reduce to spiral bullet therein
The damage risk of spring part.
The further object of the utility model is to enable the large batch of machine installing and dismounting of stop nut, raising efficiency
While ensure product installation consistency.
By the way that the exemplary embodiment of the utility model is described in detail referring to the drawings, the utility model its
Its feature and its advantage will become apparent.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 shows the schematic diagram of the spiral spring piece 1 of stop nut according to the present utility model；
Fig. 2 shows the upward views of spiral spring piece 1 shown in FIG. 1；
Fig. 3 shows the sectional view of the cylinder 2 of stop nut according to the present utility model；
Fig. 4 shows the vertical view of the stop nut in Fig. 3；
Fig. 5 shows according to the present utility model in the stop nut assembled under state, the wherein installation of spiral spring piece 1
Into cylinder 2；
Fig. 6 shows the sectional view of assembled stop nut shown in Fig. 4；
Fig. 7 shows that stop nut and bolt install the locking fastening assembly formed later.
Reference numeral：1, spiral spring piece；2, cylinder；3, bolt；11, first coil portion；12, the second coil part；13,
One protrusion；14, second connecting portion；21, the first chamber；22, the second chamber；23, the first limiting section；24, side wall；25, flange；26、
Second limiting section.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to this practicality
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
There is the every other embodiment carried out and obtained under the premise of creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality
Do not indicate that and imply that signified device or element must have a particular orientation or with specific azimuth configuration and operation, because
This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to relative in each component itself
Outside.Such as without Stated otherwise, there is no particular meanings for above-mentioned word, therefore should not be understood as to scope of protection of the utility model
Limitation.
In order to improve in the prior art, the utility model provides a kind of stop nut, below in conjunction with attached drawing 1-7 to this reality
It is described in detail with novel stop nut.
As shown in Figure 1, one embodiment according to the present utility model, stop nut includes spring part 1, the line of spring part 1
Material is helically wrapped, and spring part 1 has first coil portion 11 and the second coil part 12.First coil portion 11 and the second coil
Portion 12 is adjacent to each other and connected and includes multiple spiral windings.First coil portion 11 is less than the second line on radial dimension
Circle portion 12 so that spiral spring piece 1 radially, first coil portion 11 is located at the inside of the second coil part 12.
In one embodiment of the utility model, the radial dimension of first coil portion 11 is slightly less than to be screwed into stop nut
Bolt 3 screw thread radial dimension, the radial dimension of the second coil part 12 is more than the threading path of the bolt 3 to be screwed into stop nut
To size.
There is the first connecting portion 13 to extend radially outwardly, first connecting portion 13 to protrude from for the free end of first coil portion 11
The coil of first coil portion 11.
The free end of second coil part 12 has the second connecting portion 14 that extends radially outwardly, for example, it is as shown in Figure 2 from
U-shaped portion is formd to back bending folding, naturally it is also possible to be other shapes from the wire rod held.
As shown in Fig. 2, the wire rod of first coil portion 11 and the second coil part 12 is all by circularly screw winding.
In one embodiment of the utility model, the circle of the circular coil and first coil portion 11 of the second coil part 12
Coil spacing certain interval, both certain circular coil can also be located next to each other radially.
In one embodiment of the utility model, the coil of first coil portion 11 be it is isometrical, the second coil part 12
Coil can also be isometrical.
In one embodiment of the utility model, as shown in Fig. 2, the end that the free end of the second coil part 12 is located at
Coil is oppositely wound relative to a part of coil of the second coil part 12 so that the coil of the second coil part 12 is on part
Overlapping, it can reduce the height of spiral spring piece 1 so that its size is tight in the case where ensuring that the number of coils is enough in this way
It gathers.
In one embodiment of the utility model, the end coil where the free end of the second coil part 12 is winding to
Abut against the side towards first coil portion 11 of adjacent windings.
As shown in figure 3, one embodiment according to the present utility model, stop nut includes cylinder 2, and the both ends of cylinder 2 are
Open, hollow accommodating chamber is formed between its ends between, and the accommodating chamber for accommodating spiral spring piece 1, cylinder 2 is accommodating
Threaded hole is additionally provided with below chamber, for being engaged with the screw flight for screwing in stop nut.
Accommodating chamber includes the first chamber 21 and the second chamber 22, and the second chamber 22 is more than the first chamber 21 on radial dimension.First Line
Circle portion 11 is mounted in first chamber 21, and second coil part 12 is disposed in second chamber 22.
The first limiting section 23 is formed on the side wall 24 of first chamber 22, the first connecting portion 13 of first coil portion 11 is extend into
In first limiting section 23.Second chamber 22 is equipped with the second limiting section 26 on its side wall, for the second coil part 12 of fixed holding
Second connecting portion 14, in this way when the second coil part 12 is arranged in the second chamber 22, the second coil part 12 will not be with insertion
The rotation of the screw rod 3 of nut and rotate.
When screw rod 3 screws in stop nut, screw rod 3 can sequentially pass through first coil portion 11 and the second coil part 12.First
Coil part 11 can be wrapped on the screw thread of screw rod 3, have gap between the second coil part 12 and screw rod 3.When screw rod 3 is threaded in or out
When first coil portion 11, the free end of first coil portion 11 can be moved in the circumferential direction with the rotation of screw rod 3, then first connecting portion
13 can move along the circumferential direction of cylinder 2.
Since first connecting portion 13 stretches into the first limiting section 23, the circumferential direction movement of first connecting portion 13 is limited
In the spatial dimension by the first limiting section 23, the first limiting section 23 has a preset length, First Line in cylinder circumferential direction
The first connecting portion 13 in circle portion 11 can move in the range of this preset length along the circumferential direction of cylinder 2.
In the utility model one embodiment, the first limiting section 23 is located on the side wall 24 of the first chamber 21, the second limit
Portion 24 is located on the side wall 24 of the second chamber 22.
In one embodiment of the utility model, the first limiting section 23 is configured on the side wall 24 of the first chamber 21
The recess portion of formation, recess portion is radially outward recessed from side wall 24, and first connecting portion 13 extend into recess portion and can be in recess portion
It is circumferential mobile.
In one embodiment of the utility model, the first limiting section 23 is configured to be formed on the side wall of the first chamber 21
Open slot, first connecting portion 13 stretches into open slot, and open slot can be elongated, round or ellipse, the first protrusion
Portion 13 can be moved in open slot inner circumferential.
In one embodiment of the utility model, the first limiting section 23 is configured to the shape on the side wall 24 of the first chamber 21
At two protrusions, two protrusions are circumferentially upper opposite and arranged spaced apart in cylinder, and first connecting portion 13 extend into two protrusions
Between and stopped by protrusion, so as to circumferentially be moved between two protrusions.
In one embodiment of the utility model, as shown in figure 4, the second limiting section 26 is formed on the side of the second chamber 22
On wall, and its shape is constructed in being adapted with the shape of second connecting portion 14, is kept to fix second connecting portion 14
In wherein.
As shown in figure 5, cylinder 2 includes spring maintaining part 25, what spring maintaining part 25 was located at cylinder is adjacent to the second chamber 22
Open end, spring maintaining part keep the second coil part 12, prevent spiral spring piece 1 from accommodating chamber deviate from.
In one embodiment of the utility model, spring maintaining part 25 includes flange, which extends to the second chamber 22
In, to positioned at the upside of the second coil part 12.Optionally, flange is from the inward flange of open end or the side wall 24 of the second chamber 22
It extends radially inwardly.
In one embodiment of the utility model, the quantity of flange is multiple, and multiple flanges are circumferentially at interval
Arrangement, preferably equally spacedly.
If Fig. 6 shows the stop nut that spiral spring piece 1 is installed in cylinder 2, Fig. 5's is installed to bolt 3 below
The process of stop nut is described.
When stop nut to be installed on bolt 3, stop nut 6 rotates clockwise under the effect of external force, and bolt 3 is first
It is subsequently passed through the second coil part 12 across first coil portion 11.As bolt 3 gradually screws in first coil portion 11, it is located at first
The coil of the free end of coil part 11 also can rotate clockwise certain angle with the rotation of screw rod, and first connecting portion 13 is
It is circumferentially moved a certain distance along cylinder in one limiting section 23, the circumferential lengths of the first limiting section 23 are configured to revolve in bolt 3
Fashionable permission first connecting portion 13 is circumferentially moved along cylinder without stopping it.This assures first coil portion 1
It is not damaged when nut is tightened.
When removing stop nut from bolt 3, stop nut rotates counterclockwise under the effect of external force, helical spring
The first coil portion 1 of part 1 can be held tightly on the screw thread of bolt 3, since the second connecting portion 14 of the second coil part 12 is fixed guarantor
It holds in the second limiting section 26 of the second chamber 22 of stop nut so that the second coil part 12 is fixed not relative to stop nut
It moves and rotates therewith.With the rotation of stop nut, first coil portion 11 more and more tightly embraces the screw thread of bolt 3, directly
It is abutted together to the circumferential edge for being moved to the first limiting section 23 of first connecting portion 13 of first coil portion 11 with it.First limit
Position portion 23 can apply active force in first coil portion 11 so that and first coil portion 11 can together be rotated with stop nut, from
Without yet further holding bolt 3 tightly.Which ensures that the feelings of the holding predetermined resistance of first coil portion 1 in spiral spring piece 1
Stop nut is disassembled from bolt 3 under condition.In disassembly process, only locking spiral shell need to can be completed using common tool
Female dismounting is not necessarily to specific purpose tool.
Fig. 7 shows a kind of locking fastening assembly, which includes bolt 3 (its nut is not shown) and above-mentioned
Stop nut, bolt 3 screws in the cylinder part 2 of stop nut, is first combined, then passes through with the threaded portion of cylinder part 2 from below
First coil portion 11, first coil portion 11 are wrapped on screw flight, are subsequently passed through the second coil part 12.
The exemplary embodiment that these are only the utility model, is not intended to limit the utility model, all new in this practicality
Within the spirit and principle of type, any modification, equivalent replacement, improvement and so on should be included in the protection of the utility model
Within the scope of.
Claims (15)
1. a kind of stop nut, including：
Spiral spring piece (1) has first coil portion (11) and the second coil part (12) adjacent to each other, the first coil portion
(11) it is less than second coil part (12) on radial dimension, the free end of the first coil portion (11) has radially outward
The first connecting portion (13) of extension, the free end of second coil part (12) have the second connecting portion to extend radially outwardly
(14), the wire rod of the first coil portion (11) and second coil part (12) is by circularly screw winding；And
Cylinder (2), both ends are unlimited, and are formed with the accommodating chamber for accommodating the spiral spring piece (1), institute between its ends between
It includes the first chamber (21) and the second chamber (22) to state accommodating chamber, and the accommodating chamber is adjacent in the cylinder (2) and is equipped with one section of spiral shell
Pit, second chamber (22) are more than first chamber (21) on radial dimension, and first coil portion (11) is contained in described the
In one chamber (21), second chamber (22) accommodates second coil part (12), is set on the side wall (24) of the accommodating chamber
There are the first limiting section (23) and the second limiting section (26), the first connecting portion (13) to stretch into first limiting section (23),
The first connecting portion (13) is circumferentially movable along the cylinder, and the circumferential movement of the first connecting portion (13) is limited in
In the spatial dimension limited by first limiting section (23), the second connecting portion (14) is fixedly maintained at described second
In limiting section (26).
2. stop nut according to claim 1, which is characterized in that first limiting section (23) is configured to described
The recess portion formed on the side wall (24) of first chamber (21), the first connecting portion (13) stretch into the recess portion, the spatial dimension
It is limited by the recess portion.
3. stop nut according to claim 1, which is characterized in that first limiting section (23) is configured to described
The open slot formed on the side wall (24) of first chamber (21), the first connecting portion (13) stretch into the open slot, the space
Range is limited by the open slot.
4. stop nut according to claim 1, which is characterized in that first limiting section (23) is configured to described
Two protrusions formed on the side wall (24) of first chamber (21), described two protrusions are circumferentially upper opposite in the cylinder and are spaced
It opens, the first connecting portion (13) is blocked between described two protrusions, and the spatial dimension is limited at described two protrusions
Between.
5. stop nut according to claim 1, which is characterized in that the first coil portion (11) and/or described second
The coil of coil part (12) is wound isometrically.
6. stop nut according to claim 1, which is characterized in that the free end of second coil part (12) is located at
End coil oppositely wound relative to a part of coil of second coil part (12).
7. stop nut according to claim 6, which is characterized in where the free end of second coil part (12)
End coil is winding to the side of the direction first coil portion (11) of its adjacent windings.
8. stop nut according to claim 1, which is characterized in that second coil part (12) and the first coil
There is gap in portion radially between (11).
9. stop nut according to claim 1, which is characterized in that second coil part (12) and the first coil
Portion (11) is coaxial line.
10. stop nut according to claim 1, which is characterized in that be adjacent to described including be located at the cylinder
The spring maintaining part (25) of the open end of two chambers (22), the spring maintaining part (25) are used to protect the spiral spring piece (1)
It holds in the accommodating chamber.
11. stop nut according to claim 10, which is characterized in that the spring maintaining part includes extending to described the
Flange in two chambers (22), the flange are located at the upside of second coil part (12).
12. stop nut according to claim 11, which is characterized in that the flange from the inward flange of the open end or
The side wall (24) of second chamber (22) described in person extends radially inwardly.
13. stop nut according to claim 11, which is characterized in that multiple institutes including circumferentially spaced set
State flange.
14. stop nut according to claim 1, which is characterized in that the second connecting portion (14) is configured to by institute
The free end wire rod for stating first coil portion (11) is rolled over to back bending and the U-shaped portion of formation.
15. a kind of locking fastening assembly, including bolt (3) and the locking spiral shell according to any one of claim 1-14
Mother, the bolt (3) pass through the spiral spring piece (1) being arranged in the accommodating chamber and the engagement threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721377624.0U CN207701576U (en) | 2017-10-24 | 2017-10-24 | Stop nut and locking fastening assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721377624.0U CN207701576U (en) | 2017-10-24 | 2017-10-24 | Stop nut and locking fastening assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207701576U true CN207701576U (en) | 2018-08-07 |
Family
ID=63021578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721377624.0U Expired - Fee Related CN207701576U (en) | 2017-10-24 | 2017-10-24 | Stop nut and locking fastening assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207701576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588081A (en) * | 2017-10-24 | 2018-01-16 | 西藏深元投资有限公司 | Stop nut and locking fastening assembly |
-
2017
- 2017-10-24 CN CN201721377624.0U patent/CN207701576U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588081A (en) * | 2017-10-24 | 2018-01-16 | 西藏深元投资有限公司 | Stop nut and locking fastening assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 Termination date: 20211024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |