CN208397111U - Ratchet-type screw retention mechanism - Google Patents
Ratchet-type screw retention mechanism Download PDFInfo
- Publication number
- CN208397111U CN208397111U CN201820720056.8U CN201820720056U CN208397111U CN 208397111 U CN208397111 U CN 208397111U CN 201820720056 U CN201820720056 U CN 201820720056U CN 208397111 U CN208397111 U CN 208397111U
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- China
- Prior art keywords
- ratchet
- type screw
- screw retention
- check pawl
- bolt
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- 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.)
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- 230000014759 maintenance of location Effects 0.000 title claims abstract description 44
- 230000007246 mechanism Effects 0.000 title claims abstract description 44
- 230000000694 effects Effects 0.000 abstract description 10
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to technical field of fastening, and in particular to a kind of ratchet-type screw retention mechanism.The utility model aims to solve the problem that the problem of bolt easily loosens.For this purpose, the ratchet-type screw retention mechanism of the utility model includes ratchet and the check pawl that is set on the outside of ratchet, ratchet can be bolted, check pawl can be connect with to connector, it the non-return end of check pawl can be with the ratchet engagement of ratchet, to prevent ratchet from rotating to the unlocking direction of bolt, the non-return end of check pawl is equipped with unlock pin hole, and unlock pin hole allows unlock pin to be inserted into order to release limitation of the check pawl to ratchet.Not only anti-loosing effect is excellent for the ratchet-type screw retention mechanism of the utility model, but also low cost.
Description
Technical field
The utility model relates to technical field of fastening, and in particular to a kind of ratchet-type screw retention mechanism.
Background technique
Bolt is common fastener, bolt due to the features such as its is at low cost, applied widely, connection reliability is higher and
It is used widely.But in some special application scenarios, then connection tightness is required very high.It is with electric car
Example, the battery component of electric car are normally fastened at below the chassis of electric car, since bolt has spring shim always
Power and ambient vibration form twisting swinging strength a little and bolt looseness phenomenon unavoidably occur over time, become.With
The loosening of bolt, it is more likely that phenomena such as poor contact between battery pack and automobile dynamic system occur, and then lead to dynamical system
Failure of uniting even safety accident.
Correspondingly, this field needs a kind of ratchet-type screw retention mechanism to solve the above problems.
Utility model content
In order to solve the problem of that the above problem in the prior art easily loosens in order to solve bolt, the utility model is mentioned
Supplied a kind of ratchet-type screw retention mechanism, ratchet-type screw retention mechanism include ratchet and be set on the outside of ratchet only
Return pawl, the ratchet can be bolted, the check pawl can be connect with to connector, the check pawl only
Return end can with the ratchet engagement of the ratchet, thus prevent the ratchet to the unlocking direction of the bolt rotate, it is described only
The non-return end for returning pawl is equipped with unlock pin hole, and the unlock pin hole allows unlock pin to be inserted into order to release the check pawl
Limitation to the ratchet.
In the optimal technical scheme of above-mentioned ratchet-type screw retention mechanism, the non-return end of the check pawl and it is described to
Be provided with elastic component between connector, the both ends of the elastic component respectively with the non-return to connector and the check pawl
End connection.
In the optimal technical scheme of above-mentioned ratchet-type screw retention mechanism, the hub switch side of the check pawl is along the spiral shell
The axial direction of bolt is provided with axis hole, and described to be correspondingly provided with shaft on connector, the check pawl passes through the shaft hole sleeve
In the shaft.
In the optimal technical scheme of above-mentioned ratchet-type screw retention mechanism, ratchet-type screw retention mechanism includes more
A check pawl, circumferential array of the check pawl along the ratchet.
In the optimal technical scheme of above-mentioned ratchet-type screw retention mechanism, the section of the unlock pin hole is circle.
In the optimal technical scheme of above-mentioned ratchet-type screw retention mechanism, the diameter of the unlock pin hole is along direction of insertion
It is gradually reduced.
The first engagement knot is equipped in the optimal technical scheme of above-mentioned ratchet-type screw retention mechanism, on the inside of the ratchet
The screw head of structure, the bolt has the second engaging structure, and the ratchet can pass through first engaging structure and described second
The clamping with the screw head is realized in the engagement of engaging structure.
In the optimal technical scheme of above-mentioned ratchet-type screw retention mechanism, first engaging structure is internal spline, institute
Stating the second engaging structure is external splines.
In the optimal technical scheme of above-mentioned ratchet-type screw retention mechanism, the number of teeth of the internal spline is greater than the outer flower
The number of teeth of key.
In the optimal technical scheme of above-mentioned ratchet-type screw retention mechanism, the screw head of the ratchet and the bolt is not
It is detachably connected.
In the optimal technical scheme of the utility model, ratchet-type screw retention mechanism includes ratchet and is set to outside ratchet
The check pawl of side, ratchet can be bolted, check pawl can be connect with to connector, the non-return end energy of check pawl
Enough and ratchet ratchet engagement, so that ratchet be prevented to rotate to the unlocking direction of bolt, the non-return end of check pawl is equipped with solution
Lockpin hole, unlock pin hole allow unlock pin to be inserted into order to release limitation of the check pawl to the ratchet.Check pawl stops
Hui Duan and to be provided with elastic component between connector, the both ends of elastic component respectively with the non-return to connector and the check pawl
End connection.Under the elastic force effect of elastic component, non-return end applies the limitation to bolt.
The ratchet-type screw retention mechanism of the utility model limits spiral shell with engaging for pawl using ratchet after bolt fastening
The loosening of bolt, not only anti-loosing effect is excellent, but also low cost.Setting unlock pin hole and elastic component, utilize bullet on check pawl
Property part elastic force effect to pawl apply pressure, using unlock pin realize pressure release, keep the process to lift restrictions simply square
Just, easily operated, it is time saving and energy saving.
Detailed description of the invention
The ratchet-type screw retention mechanism of the utility model described with reference to the accompanying drawings.In attached drawing:
Fig. 1 is the schematic diagram of the ratchet-type screw retention mechanism of the utility model.
Reference signs list
1, to connector；2, ratchet；3, bolt；4, the first engaging structure；5, ratchet；6, check pawl；7, pin hole is unlocked；
8, axis hole；9, elastic component
Specific embodiment
Preferred embodiments of the present invention are described with reference to the accompanying drawings.It should be understood by those skilled in the art that
It is that these embodiments are used only for explaining the technical principle of the utility model, it is not intended that limit the protection of the utility model
Range.Although these quantity and positional relationship are non-for example, attached drawing shows the particular number and positional relationship of check pawl
Unalterable, those skilled in the art, which can according to need, makes adjustment to it, to adapt to specific application.
It should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular in the description of the present invention,
Directly ", the direction of the instructions such as "horizontal", "inner", "outside" or the term of positional relationship are that direction or position based on the figure are closed
System, this is intended merely to facilitate description, rather than indication or suggestion described device or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In addition it is also necessary to explanation, in the description of the present invention, unless otherwise clearly defined and limited, art
Language " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or
It is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.To those skilled in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
With reference first to Fig. 1, the ratchet-type screw retention mechanism of the utility model is illustrated.Wherein, Fig. 1 is that this is practical
The schematic diagram of novel ratchet-type screw retention mechanism.As shown in Figure 1, the ratchet-type screw retention mechanism of the utility model includes
Ratchet 2 and the check pawl 6 for being set to the outside of ratchet 2, ratchet 2 can be connect with bolt 3, check pawl 6 can with wait connect
Part 1 connects.When in use, the non-return end of check pawl 6 can with the ratchet engagement of ratchet 2, to prevent ratchet to bolt
Unlocking direction rotation, realizes the locking functions of bolt.Ratchet 2 is preferably removably connect with bolt 3, specifically, spine
2 inside of wheel is equipped with the first engaging structure 4, and the screw head of bolt 3 has the second engaging structure to match with the first engaging structure 4
(not shown), ratchet 2 can pass through the clamping for engaging realization with screw head of the first engaging structure 4 and the second engaging structure.
First engaging structure 4 is internal spline, and the second engaging structure is external splines, also, the number of teeth of internal spline is greater than the number of teeth of external splines.
It is such to design the versatility for improving the ratchet-type screw retention mechanism of the utility model, a variety of different rule can be suitable for
The bolt of lattice.
Those skilled in the art are it is contemplated that the first engaging structure 4 and the second engaging structure can also be using protrusions
With the forms such as groove；The connection of ratchet 2 and bolt 3 can also be using non-removable connection types such as integrated molding, welding, this
Kind set-up mode can enhance the effect of the synchronous rotary of ratchet 2 and bolt 3, improve this limitation micro-displacement of click
The anti-loosing effect of structure.
With continued reference to Fig. 1, ratchet-type screw retention mechanism includes two check pawls 6, and two check pawls 6 are along ratchet 2
Diameter setting in a center of symmetry.Certainly, the quantity of check pawl 6 may be one, three or more, non-return spine at this time
Pawl 6 can circumferentially can also be arranged at special angle along the circumferential array of ratchet 2.Check pawl 6 includes non-return end and pivot
End, the non-return end of check pawl 6 and to be provided with elastic component 9 between connector 1, such as helical spring, rubber spring or elastomer block
Deng the both ends of elastic component 9 are connect with the non-return end to connector 1 and check pawl 6 respectively, and the non-return end of check pawl 6 can
Ratchet engagement under the elastic force effect of elastic component 9 with ratchet 2, so that ratchet 2 be prevented to rotate to the unlocking direction of bolt 3.Only
The hub switch side for returning pawl 6 is provided with axis hole 8 along the axial direction of bolt 3, (does not show in figure to be correspondingly provided with shaft on connector 1
Out), check pawl 6 is sheathed in shaft by axis hole 8 and realizes pivot relative to shaft, so realize limitation to ratchet or
The releasing of limitation.In addition, be additionally provided on the non-return end of check pawl 6 unlock pin hole 7, unlock pin hole 7 allow unlock pin be inserted into
Convenient for easily releasing limitation of the check pawl 6 to ratchet 2.The section for unlocking pin hole 7 is circle, and unlocks the diameter edge of pin hole 7
Direction of insertion is gradually reduced, and such design is convenient in unlock pin insertion unlock pin hole 7.
Connect by ratchet 2 with bolt 3, check pawl 6 is connect with to connector 1, connect rear elastic component 9 elastic force make
Engagement with bottom ratchet wheel 2 by check pawl 6 is limited, and the ratchet-type screw retention mechanism of the utility model can be limited effectively
The loosening of bolt 3, not only anti-loosing effect is excellent, but also low cost.By the way that unlock pin hole 7 and elasticity are arranged on check pawl 6
Part 9 is applied pressure to check pawl 6 using the elastic force effect of elastic component 9, and is realized using unlock pin insertion unlock pin hole 7
The ratchet-type screw retention mechanism of the releasing of limitation, the utility model can make under the premise of guaranteeing the anti-loosing effect of bolt
Bolt adds unlocking process easily operated, time saving and energy saving.
It should be noted that, although the cross section of check pawl 6 substantially rectangularity in figure, but the shape of check pawl 6
Be not limited thereto, comprising non-return end and under the premise of hub switch side, other shapes also the protection scope of the utility model it
Interior such as trapezoidal, triangle etc..In the present embodiment, its rectangular excess-three corner in addition to non-return end of check pawl 6 is equal
For rounded corner.The setting of rounded corner improves the safety of check pawl 6 in use, avoids in adding unlocking process
Scratch equipment or body.
It is illustrated below with reference to the course of work of the Fig. 1 to the ratchet-type screw retention mechanism of the utility model.
Ratchet 2 is installed, the first engaging structure 4 engages with the second engaging structure, check pawl 6 on the outside of the screw head of bolt 3
Non-return end is resisted against on the ratchet of ratchet 2 under the action of elastic component 9, and ratchet-type screw retention mechanism enters work shape at this time
State, rotating bolt in a clockwise direction at this time, while realizing bolts and nuts fastening, the non-return end of check pawl 6 is in elasticity
It remains under the pressure of part 9 and to be engaged with ratchet, prevent bolt looseness.
When needing to release the limitation of bolt 3, unlock pin is inserted into unlock pin hole 7, at this time with the axial for axis of bolt
Unlock pin is rotated in the counterclockwise direction, non-return end can be made to be detached from ratchet 5, to release limitation of the check pawl 6 to bolt 3.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the utility model, still, this
Field technical staff is it is easily understood that the protection scope of the utility model is expressly not limited to these specific embodiments.?
Under the premise of the principles of the present invention, those skilled in the art can make equivalent change to the relevant technologies feature
Or replacement, the technical solution after these changes or replacement are fallen within the protection scope of the utility model.
Claims (10)
1. a kind of ratchet-type screw retention mechanism, which is characterized in that ratchet-type screw retention mechanism includes ratchet and setting
Check pawl on the outside of ratchet, the ratchet can be bolted, the check pawl can be connect with to connector, institute
The non-return end for stating check pawl can be with the ratchet engagement of the ratchet, to prevent the ratchet to the unlock side of the bolt
To rotation, the non-return end of the check pawl is equipped with unlock pin hole, and the unlock pin hole allows unlock pin to be inserted into order to solve
Limitation except the check pawl to the ratchet.
2. ratchet-type screw retention according to claim 1 mechanism, which is characterized in that the non-return end of the check pawl with
It is described to be provided with elastic component between connector, the both ends of the elastic component are respectively with described to connector and the check pawl
Non-return end connection.
3. ratchet-type screw retention according to claim 2 mechanism, which is characterized in that the hub switch side edge of the check pawl
The axial direction of the bolt is provided with axis hole, and described to be correspondingly provided with shaft on connector, the check pawl passes through described
Shaft hole sleeve is set in the shaft.
4. ratchet-type screw retention according to claim 1 mechanism, which is characterized in that ratchet-type screw retention mechanism
Including multiple check pawls, circumferential array of the check pawl along the ratchet.
5. ratchet-type screw retention according to claim 1 mechanism, which is characterized in that the section of the unlock pin hole is circle
Shape.
6. ratchet-type screw retention according to claim 5 mechanism, which is characterized in that the diameter of the unlock pin hole is along slotting
Enter direction to be gradually reduced.
7. ratchet-type screw retention according to claim 1 to 6 mechanism, which is characterized in that on the inside of the ratchet
Equipped with the first engaging structure, the screw head of the bolt has the second engaging structure, and the ratchet can be engaged by described first
Structure engages the clamping realized with the screw head with second engaging structure.
8. ratchet-type screw retention according to claim 7 mechanism, which is characterized in that first engaging structure is interior flower
Key, second engaging structure are external splines.
9. ratchet-type screw retention according to claim 8 mechanism, which is characterized in that the number of teeth of the internal spline is greater than institute
State the number of teeth of external splines.
10. ratchet-type screw retention according to claim 1 mechanism, which is characterized in that the ratchet and the bolt
Screw head is non-dismountable connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820720056.8U CN208397111U (en) | 2018-05-15 | 2018-05-15 | Ratchet-type screw retention mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820720056.8U CN208397111U (en) | 2018-05-15 | 2018-05-15 | Ratchet-type screw retention mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208397111U true CN208397111U (en) | 2019-01-18 |
Family
ID=65137019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820720056.8U Active CN208397111U (en) | 2018-05-15 | 2018-05-15 | Ratchet-type screw retention mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208397111U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397660A (en) * | 2019-08-29 | 2019-11-01 | 海盐盛信标准件有限公司 | A kind of split type fastening nut of mechanical equipment |
| CN111350742A (en) * | 2020-03-10 | 2020-06-30 | 嘉兴萨雷特汽车零部件有限公司 | Self-locking anti-seismic bolt for automobile and motorcycle |
| CN111536137A (en) * | 2020-04-27 | 2020-08-14 | 三一重型装备有限公司 | Bolt anti-loosening device and anti-loosening method thereof |
| CN112942167A (en) * | 2021-02-03 | 2021-06-11 | 尹可图 | Building construction-based safety guardrail with visual warning mechanism |
-
2018
- 2018-05-15 CN CN201820720056.8U patent/CN208397111U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397660A (en) * | 2019-08-29 | 2019-11-01 | 海盐盛信标准件有限公司 | A kind of split type fastening nut of mechanical equipment |
| CN110397660B (en) * | 2019-08-29 | 2024-04-09 | 海盐盛信标准件股份有限公司 | Split type fastening nut for mechanical equipment |
| CN111350742A (en) * | 2020-03-10 | 2020-06-30 | 嘉兴萨雷特汽车零部件有限公司 | Self-locking anti-seismic bolt for automobile and motorcycle |
| CN111536137A (en) * | 2020-04-27 | 2020-08-14 | 三一重型装备有限公司 | Bolt anti-loosening device and anti-loosening method thereof |
| CN112942167A (en) * | 2021-02-03 | 2021-06-11 | 尹可图 | Building construction-based safety guardrail with visual warning mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200908 Address after: Susong Road West and Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Weilai (Anhui) Holding Co., Ltd Address before: 30 Floor of Yihe Building, No. 1 Kangle Plaza, Central, Hong Kong, China Patentee before: NIO NEXTEV Ltd. |