CN106151236A - The locking device of fastening bolt - Google Patents
The locking device of fastening bolt Download PDFInfo
- Publication number
- CN106151236A CN106151236A CN201510149865.9A CN201510149865A CN106151236A CN 106151236 A CN106151236 A CN 106151236A CN 201510149865 A CN201510149865 A CN 201510149865A CN 106151236 A CN106151236 A CN 106151236A
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- China
- Prior art keywords
- fastening bolt
- helical spring
- bolt
- external thread
- thread part
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Abstract
The present invention relates to the locking device of a kind of fastening bolt.This locking device can be reliably prevented loosening of the bolt causing due to effect of vibration, and can easily take off the bolt temporarily locked and fasten, and easily tight lock part can be assembled in bolt.This locking device is the fastening bolt having and threadingly engaging in the external thread part by the internal thread hole of fastening member, by connection member, the top ends of one end of supporting member less than the external diameter of described external thread part for external diameter and described fastening bolt is linked, there is the helical spring of the pitch that the pitch of described external thread part with described fastening bolt matches in the configuration of the periphery of described supporting member, the free end making the end side of described helical spring be contactless state, the anchor portion making another side be the other end being held in described supporting member, align with the starting point that the screw thread process of the described external thread part of described fastening bolt starts in the top making the described free end of described helical spring.
Description
Technical field
The present invention relates to a kind of threadingly engaging in by the locking device of the bolt of fastening member, especially for
The optimal locking device of locking of stud.
Background technology
As the conventional device loosening preventing bolt, proposing as described in Patent Document 1 makes as spiral shell
The helical spring of rotation shape elastomer is held in the scheme on the top of bolt, and the technical scheme of patent document 1 is,
Small diameter part less than the externally threaded diameter of bolt for diameter is located at integratedly the top of bolt, at small diameter part
Surrounding configuration threadingly engage in by the helical spring of the internal thread hole of fastening member, make this helical spring pressure
It is connected to the inner surface of the groove of internal thread, thus stops the rotation of bolt, and stop bolt due to from being fastened
Component transmits the vibration coming and loosens.
Prior art literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2008-298218 publication
Content of the invention
Problems to be solved by the invention
But, for patent document 1 for such locking structure, described bolt thread is being engaged in
During the internal thread hole of member for mount, if on the externally threaded extended line of bolt, helical spring not with
The identical pitch arrangement of this externally threaded pitch, then there are the following problems: cannot smoothly be threadedly engaged spiral shell
Bolt, and need by make the externally threaded pitch of bolt and with the pitch of helical spring without departing from the way of carry out
Arrangement, the installation of helical spring is wasted time and energy.
The present invention considers above such situation and makes, and therefore its object is to provide one tight
The locking device of fixing bolt: can easily make one end of helical spring and the external thread part of fastening bolt
The alignment of starting point that screw thread process starts, and can be simply according to identical with the pitch of described external thread part
The described helical spring of interval configuration, it is easy to carry out the top ends of described fastening bolt and described helical spring
Between assembling.
For solution to problem
In order to solve described problem and achieve the goal, the present invention is constituted as follows.
Invention described in technical scheme 1 is the locking device of a kind of fastening bolt, and it is to have to be threadedly engaged
In the fastening bolt by the external thread part of the internal thread hole of fastening member, it is characterised in that external diameter is compared institute
State the top by connection member and described fastening bolt for the one end of the little supporting member of the external diameter of external thread part
End links, and the configuration in the periphery of described supporting member has the described external thread part with described fastening bolt
The helical spring of pitch that matches of pitch, the end side making described helical spring is contactless state
Free end, the anchor portion making another side be the other end being held in described supporting member, make described
The top of the described free end of helical spring adds with the screw thread of the described external thread part of described fastening bolt
The starting point alignment that work starts.
Invention described in technical scheme 2 is the locking device of the fastening bolt according to technical scheme 1, its
Being characterised by, the described top ends of described fastening bolt utilizes described with described one end of described supporting member
Connection member connects to the described top ends of described fastening bolt and the described free end of described helical spring
Interval between portion becomes the identical interval of the pitch of the described external thread part with described fastening bolt.
Invention described in technical scheme 3 is the locking dress of the fastening bolt according to technical scheme 1 or 2
Put, it is characterised in that be provided with engaging portion in described supporting member, make described fastening bolt court and screw thread
When the contrary direction of direction of engagement rotates, the described free end of described helical spring is connected to described locking
Portion.
The effect of invention
According to described structure, the present invention has following such effect.
In the invention described in technical scheme 1, owing to the locking device of this fastening bolt is to have screw thread to connect
Together in the fastening bolt by the external thread part of the internal thread hole of fastening member, by external diameter than described external thread part
One end of the little supporting member of external diameter link by the top ends of connection member and described fastening bolt,
The periphery configuration of described supporting member has the pitch phase of the described external thread part with described fastening bolt
The helical spring of the pitch joined, the free end making the end side of described helical spring be contactless state,
The anchor portion making another side be the other end being held in described supporting member, makes described helical spring
What the screw thread process of the described external thread part of the top of described free end and described fastening bolt started rises
Point alignment, therefore locally assembles described helical spring and utilizes described connection member to enter after described supporting member
Joining line, can be easily by described in the described free end of described helical spring and described fastening bolt
The described starting point alignment that the screw thread process of external thread part starts, described helical spring is by as described fastening spiral shell
The extension precision of the described external thread part of bolt configures well, and can be smoothly by described fastening
Bolt is threadedly engaged by fastening member to described.
In the invention described in technical scheme 2, due to described fastening bolt described top ends with described
Described one end of bearing member utilize described connection member connect to the described top ends of described fastening bolt with
Interval between the described free end of described helical spring becomes the described outer spiral shell with described fastening bolt
The identical interval of the pitch in line portion, therefore, it is possible to simply by described top ends and the institute of described fastening bolt
State interval between the described free end of helical spring and be adjusted to the described external screw thread with described fastening bolt
The pitch in portion is identical, and described fastening bolt and described helical spring smoothly threadingly engage in described internal thread
Hole.
In the invention described in technical scheme 3, make described fastening spiral shell owing to being provided with in described supporting member
Bolt abuts towards with the described free end being threadedly engaged described helical spring when direction in opposite direction rotates
Engaging portion, therefore, it is possible to carry out undergauge simply to described helical spring, and easily take off described tightly
Fixing bolt.
Brief description
Fig. 1 is the sectional view of the 1st embodiment representing the present invention.
Fig. 2 is the sectional view of the line A-A of Fig. 1.
Fig. 3 is the sectional view of the spinning movement state of the bolt representing the present invention.
Fig. 4 is the sectional view of the 2nd embodiment representing the present invention.
Fig. 5 is the sectional view of the line B-B of Fig. 2.
Description of reference numerals
1st, by fastening member；1a, internal thread hole；2nd, fastening bolt；21st, head；22nd, external screw thread
Portion；The starting point that 22a, screw thread process start；23rd, top ends；3rd, supporting member；3a, one end；3b、
The other end；3c, engaging portion；4th, helical spring；4a, free end (end side)；4b, fixing end
Portion (another side)；5th, connection member；5a, protuberance；5b, recess；6th, lance tooth spline；A、
Fixing component.
Detailed description of the invention
Hereinafter, the embodiment of the locking device of the bolt of the present invention is illustrated.The enforcement of the present invention
Mode represents the most preferred mode of invention, and the present invention is not limited to this.
1st embodiment of the present invention is described based on Fig. 1 to Fig. 3.Fig. 1 represents the one of the locking device of bolt
Embodiment, the parts represented by reference A are fixing components, and fastening bolt 2 is planted by this fixing component A
Enter and be installed on by fastening member 1.
Described fastening bolt 2 includes hexagonal head 21 and threadingly engages in described by fastening member 1
The external thread part 22 of internal thread hole 1a, the starting point 22a shape that described external thread part 22 starts from screw thread process
Become.
It in the top ends 23 of described fastening bolt 2, is linked with external diameter than described external screw thread by connection member 5
One end 3a of the little supporting member 3 of the external diameter in portion 22.Described connection member 5 is to be located at described supporting member 3
The cylindric protuberance 5a of one end 3a be rotatably embedded in and be located at described fastening bolt 2
The mode of recess 5b of described top ends 23 enter joining line.
It is configured with what the pitch having with described external thread part 22 matched in the periphery of described supporting member 3
The helical spring 4 of pitch, the end side of described helical spring 4 is the free end 4a of contactless state, should
The described starting point that the screw thread process of the described external thread part 22 of free end 4a and described fastening bolt 2 starts
22a aligns, and towards with described fastening bolt 2 be threadedly engaged when direction in opposite direction rotates with set
Abut against in engaging portion 3a of described supporting member 3.Additionally, described free end 4a be easy to described
The mode curved apex that described engaging portion 3a of supporting member 3 abuts against is preferred.
Another side of described helical spring 4 is consolidated as the other end 3b's being held in described supporting member 3
Fixed end portion 4b.The hole being arranged in described supporting member 3 is utilized to keep this anchor portion 4b but it also may
The top of described supporting member 3 forms groove makes this anchor portion 4b be held in this groove.
The described outer spiral shell of described free end 4a Yu described fastening bolt 2 in order to make described helical spring 4
The described starting point 22a alignment that the screw thread process in line portion 22 starts, by described helical spring 4 and described supporting
After component 3 local assembles (English: sub-assembly), by the described protuberance 5a of described connection member 5
Chimeric with described recess 5b, make described supporting member 3 while rotation, make the institute of described helical spring 4
State free end 4a to align with described starting point 22a that the described screw thread process of described external thread part 22 starts.
Afterwards, utilize resistance welding etc. by the institute of described one end 3a of described supporting member 3 and described fastening bolt 2
State top ends 23 to weld, described supporting member 3 is fixed on the described top ends of described fastening bolt 2
23。
Additionally, for described connection member 5, the described top ends 23 in described fastening bolt 2 is arranged
Described recess 5b, is provided with described protuberance 5a in described supporting member 3 but it also may in described fastening
The described top ends 23 of bolt 2 arranges described protuberance, arranges described recess in described supporting member 3.
When described helical spring 4 is threadingly engaged in the described described internal thread hole 1a by fastening member 1,
Described anchor portion 4b making described helical spring 4 is inserted into the open side of described internal thread hole 1a, due to
Described helical spring 4 is formed with the pitch identical with the pitch of described fastening bolt 2, therefore with common spiral shell
Bolt threadingly engages in described internal thread hole 1a similarly, and described helical spring 4 is threadably engaged with in described
Screwed hole 1a.
Due to the contact friction between the inner surface of the described internal thread hole 1a contacting with described helical spring 4
And produce rotary resistance, but rotate towards the direction that is threadedly engaged of described fastening bolt 2 at described helical spring 4
When, described anchor portion 4b of described helical spring 4 is pulled, therefore with guiding described free end 4a
Whole described helical spring 4 is rolled tightly, and being additionally, since described helical spring 4 is elastomer, therefore such as figure
Shown in 3, state that described helical spring 4 has become than free state somewhat undergauge, described helical spring 4
Inwardly side bends and alleviates the rotary resistance caused owing to contacting friction such that it is able to relatively easily
It is screwed into.
And, after described helical spring 4 being threadingly engaged in described internal thread hole 1a, then by described
Fastening bolt 2 is towards when being threadedly engaged direction rotation, after described helical spring 4, and described fastening bolt 2
Described top ends 23 threadingly engage in described internal thread hole 1a.Now, if not only by described spiral bullet
It is roughly the same with the pitch of the described external thread part 22 of described fastening bolt 2 that spring 4 is formed as pitch, and makes
Between the described top ends 23 of described fastening bolt 2 and the described free end 4a of described helical spring 4
Interval becomes the identical interval of the pitch of described external thread part 22 with described fastening bolt 2, then described outside
Threaded portion 22 and described helical spring 4 become continuously spiral, can smoothly carry out described spiral bullet
Spring 4 and described fastening bolt 2 being threadedly engaged to described internal thread hole 1a.
By described fastening bolt 2 is threadingly engaged in described internal thread together with described helical spring 4
Described fixing component A, to the predetermined degree of depth, can be clipped in the described head 21 of described fastening bolt 2 by hole 1a
And it described is fastened and fixed between fastening member 1, described spiral shell in the state of this has been fastened and fixed
Rotation spring 4 is expanding and the inner surface that is crimped on described internal thread hole 1a, and described helical spring 4 is relative to described
Internal thread hole 1a by spline, and, by described helical spring 4, the rotation of described fastening bolt 2 also by
Stop, thus prevent loosening of described fastening bolt 2.
And, in the state of the rotation utilizing described helical spring 4 to prevent described fastening bolt 2, if
Make described fastening bolt 2 towards be threadedly engaged direction in opposite direction and rotate, owing to described helical spring 4 is pressed
It is connected to the inner surface of described internal thread hole 1a, therefore manually cannot easily rotate described fastening bolt
2, if but rotate described fastening bolt 2 forcefully by instrument etc., then described helical spring 4 is described
Free end 4a gradually rotates, after described fastening bolt 2 rotates predetermined angular, described helical spring 4
Described free end 4a is connected to described engaging portion 3c of described supporting member 3.
In this condition, if then rotating described fastening bolt 2 in the same direction, then described spiral bullet
The described free end 4a of spring 4 under the described engaging portion 3c effect of described supporting member 3 in the same direction
Rotating, described helical spring 4 becomes the tendency being gradually rolled tightly, carries out undergauge as shown in Figure 3 so that institute
The friction that contacts stated between helical spring 4 with described internal thread hole 1a is mitigated, and described fastening bolt 2 can
Unload towards with being threadedly engaged direction rotation in opposite direction together with described helical spring 4.
It follows that the 2nd embodiment is described based on Fig. 4 to Fig. 5.With the 1st embodiment in this embodiment
Identical structure marks identical reference and illustrates.
In the 2nd embodiment, form described connection member 5 phase with explanation in the 1st embodiment
With concavo-convex chimeric, but except formed this concavo-convex chimeric in addition to, be also formed with lance tooth spline 6, pass through
Press-in is chimeric, described one end 3a of described supporting member 3 is fixed in the way of cannot rotating described outside
The described top ends 23 of threaded portion 22.
In the 2nd embodiment, for the screw thread process of the described external thread part 22 of described fastening bolt 2
Start described starting point 22a and the described free end 4a of described helical spring 4 between align for, in advance
First determine described fastening bolt 2 described external thread part 22 processing start described starting point 22a with described
The position of the lance tooth spline 6 of the alignment between free end 4a carries out this alignment, described recess 5a
It is fitted by press-in with described protuberance 5b, and described supporting member 4 is fixed on described fastening bolt 2
Described top ends 23.By described lance tooth spline 6 carry out concavo-convex chimeric when, due to described tightly
Described starting point 22a that the screw thread process of the described external thread part 22 of fixing bolt 2 starts and described helical spring 4
Described free end 4a between alignment even if to there is slight deviations be also allow, therefore do not hamper
Hinder.In addition it is also possible to be not made by the concavo-convex chimeric of described lance tooth spline 6, but by other
It is chimeric that the spline of form is carried out.
In the anti-drop device of the fastening bolt in above structure, by the groove friction with described internal thread 1a
After described helical spring 4 local of contact is assembled in described supporting member 3, described connecting portion can be utilized
Part 5 enters joining line, it is easy to by the described free end 4a of described helical spring 4 and described external thread part 22
The alignment of described starting point 22a that screw thread process starts, described external thread part 22 with become described in its extension
Between helical spring 4 can accuracy of thread continuous well, can smoothly carry out fastening bolt 2 to described
By being threadedly engaged of fastening member 1.
Due to described external thread part 22 described top ends 23 and described supporting member 3 described one end 3a it
Between link up by described connection member 5, the therefore described top ends 23 of described external thread part 22 and institute
State the interval between the described free end 4a of helical spring 4 can be adjusted to simply and described fastening spiral shell
The pitch of the described external thread part 22 of bolt 2 is identical, and described fastening bolt 2 is with described helical spring 4 smoothly
Threadingly engage in described internal thread 1a.
By described fixing component A from unloaded by fastening member 1 when, if make described fastening bolt 2 towards with screw thread
The contrary direction of direction of engagement rotates, then due to described helical spring 4 described free end 4a be located at
Described engaging portion 3c of described supporting member 3 abuts against, therefore described helical spring 4 undergauge simply, energy
Enough easily take off described fastening bolt 2.
Industrial applicability
The present invention is can be reliably prevented loosen due to caused by the vibration of fastening member and be easy to
The tight lock part of fastening bolt making, can be applied to threadingly engage in various by the fastening spiral shell of fastening member
Bolt.
Claims (3)
1. a locking device for fastening bolt, it is to have to threadingly engage in by the interior spiral shell of fastening member
The fastening bolt of the external thread part of pit, it is characterised in that by less than the external diameter of described external thread part for external diameter
One end of supporting member link by the top ends of connection member and described fastening bolt, in described supporting
The periphery configuration of component has the pitch that the pitch of the described external thread part with described fastening bolt matches
Helical spring, the free end making the end side of described helical spring be contactless state, make described spiral shell
Another side of rotation spring is the anchor portion of the other end being held in described supporting member, makes described spiral
The screw thread process of the top of the described free end of spring and the described external thread part of described fastening bolt is opened
The starting point alignment begun.
2. the locking device of fastening bolt according to claim 1, it is characterised in that described fastening
The described top ends of bolt and described one end of described supporting member utilize described connection member to connect to institute
The interval stated between the described top ends of fastening bolt and the described free end of described helical spring becomes
The interval identical with the pitch of the described external thread part of described fastening bolt.
3. the locking device of fastening bolt according to claim 1 and 2, it is characterised in that in institute
State supporting member and be provided with engaging portion, make described fastening bolt towards be threadedly engaged direction in opposite direction and turn
When dynamic, the described free end of described helical spring is connected to described engaging portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149865.9A CN106151236A (en) | 2015-03-31 | 2015-03-31 | The locking device of fastening bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149865.9A CN106151236A (en) | 2015-03-31 | 2015-03-31 | The locking device of fastening bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106151236A true CN106151236A (en) | 2016-11-23 |
Family
ID=57338246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510149865.9A Pending CN106151236A (en) | 2015-03-31 | 2015-03-31 | The locking device of fastening bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151236A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027764A (en) * | 2019-12-09 | 2021-06-25 | 株式会社丰田自动织机 | Electric compressor and method for manufacturing electric compressor |
-
2015
- 2015-03-31 CN CN201510149865.9A patent/CN106151236A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027764A (en) * | 2019-12-09 | 2021-06-25 | 株式会社丰田自动织机 | Electric compressor and method for manufacturing electric compressor |
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Legal Events
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |
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| WD01 | Invention patent application deemed withdrawn after publication |