CN208503228U - A kind of screw thread stop structure - Google Patents
A kind of screw thread stop structure Download PDFInfo
- Publication number
- CN208503228U CN208503228U CN201820492596.5U CN201820492596U CN208503228U CN 208503228 U CN208503228 U CN 208503228U CN 201820492596 U CN201820492596 U CN 201820492596U CN 208503228 U CN208503228 U CN 208503228U
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- Prior art keywords
- cylinder
- screw
- caught
- locked spacer
- positioning groove
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Abstract
The utility model discloses a kind of screw thread stop structures, stop is carried out to the screw that upper connector and lower connector link together, including the through-hole being located on upper connector and the threaded hole being located on the lower connector, locked spacer is equipped between the through-hole and the nut of the screw, the nut is equipped with card slot, and the locked spacer has the bending part that can be caught in the card slot；The locked spacer is equipped with positioning protrusion, and the through-hole is equipped with the positioning groove for supplying the positioning protrusion to be caught in or the locked spacer is equipped with positioning groove, and the through-hole is equipped with the positioning protrusion being stuck in the positioning groove；Positioning protrusion is caught in positioning groove and realizes that the angular position between locked spacer and upper connector is fixed, after tightening screw thread, bending part is caught in the card slot, so far realizes the fixation of angular position between screw, locked spacer and upper connector three.
Description
Technical field
The utility model relates to a kind of screw thread stop structures.
Background technique
Spiral marking connection is the bind mode that use scope is most wide in fastener, and it is anti-to be roughly divided into friction by Loose Check Mechanism
Locking four class of locking and structure is rushed in pine, mechanical locking, riveting.Wherein, for the use environment of shock and vibration, variable load etc., machinery is anti-
Pine is the highest anti-loose method of generally acknowledged reliability.The mechanical locking core of screw thread is its chocking construction, currently used stop
Structure has split pin, series connection steel wire and stop washer, three to have certain limitation in use.Split pin needs first
Nut and screw is wanted to be used cooperatively in pairs, when needing accurate control screw-down torque, nut is difficult to be aligned with the pin hole on screw,
If being aligned by force, screw-down torque accuracy decline；Secondly, the tail end of split pin in bending there may be surrender, in the course of work
It is influenced to be broken by various external factor, is easy to cause secondary failure, in use, blocking such as inside rotating machinery
Revolving part.Series connection steel wire is exposed firstly the need of by head of screw or nut to provide operating space, when it is in suitable to flowing
When the more demanding region of smooth property, exposed position can stream field generate strong jamming, and flowing washes away and may also result in steel wire loosening
Or fracture, cause secondary failure；Secondly, the tail end of series connection steel wire always needs to beat section, beats and do not had locking purpose, beaten
Tight beat saves position and is easy to happen surrender, is influenced to be broken by various external factor in the course of work, is also easy to draw
Send out secondary failure.
Utility model content
In order to make up the above deficiency, the utility model provides one kind and can effectively solve existing for existing chocking construction to peace
Fill screw thread stop structure the problems such as space requirement is high and lock foot, lock save, lock seaming easy fracture causes secondary failure.
The technical solution of the utility model is: a kind of screw thread stop structure, is connected to by upper connector and lower connector
Screw together carries out stop, described including the through-hole being located on upper connector and the threaded hole being located on the lower connector
Locked spacer is equipped between through-hole and the nut of the screw, the nut is equipped with card slot, and the locked spacer has and can block
Enter the bending part in the card slot；The locked spacer is equipped with positioning protrusion, and the through-hole, which is equipped with, supplies the positioning protrusion
The positioning groove or the locked spacer being caught in are equipped with positioning groove, and the through-hole is equipped with and is stuck in the positioning groove
Interior positioning protrusion.
The top of the through-hole is counterbore as a preferred technical solution, and the locked spacer includes being located at the nut
Cylinder between outer peripheral surface and the counterbore inner wall, the positioning protrusion are located at the outer wall of the cylinder, and the inner wall of the counterbore is set
There is the positioning groove, the outer peripheral surface of the nut is equipped with the card slot, and the top of the cylinder, which is equipped with, can be caught in the card slot
The interior bending part.
As a preferred technical solution, when the locked spacer is equipped with the positioning groove and the positioning groove is located at
When the cylinder top, the top of the cylinder in addition to the positioning groove also serves as the bending part, when the locked spacer
Equipped with the positioning groove and when the positioning groove is not located at the cylinder top, the top of the cylinder also serves as described curved
Folding part；When the locked spacer is equipped with the positioning protrusion and the positioning protrusion is located at the cylinder top, except described
The top of the cylinder outside positioning protrusion also serves as the bending part, when the locked spacer is equipped with the positioning protrusion and institute
When stating positioning protrusion and being not located at the cylinder top, the top of the cylinder also serves as the bending part.
The lower part of the cylinder is connected with the gasket ring covered outside the screw, the gasket ring as a preferred technical solution,
Between the nut and the bottom of the counterbore.
The card slot is multiple as a preferred technical solution, and at least two card slots are caught in by the bending part.
The screw is sunk screw as a preferred technical solution, and after tightening screw, the nut is located at the counterbore
It is interior.
The card slot and positioning groove that the portion of being bent is caught in as a preferred technical solution, are in 90 degree or 180 degree.
Two card slots are caught in by the bending part as a preferred technical solution, the card that the portion of being bent is caught in
Slot and positioning groove are in 90 degree, another card slot and positioning groove that the portion of being bent is caught in are in 180 degree.
The contact surface of the screw and the locked spacer, which is equipped with, as a preferred technical solution, reduces screw and stop
The level of frictional force between gasket.
The level is to apply silver layer as a preferred technical solution,.
By adopting the above-described technical solution, a kind of screw thread stop structure, is connected to by upper connector and lower connector
Screw together carries out stop, described including the through-hole being located on upper connector and the threaded hole being located on the lower connector
Locked spacer is equipped between through-hole and the nut of the screw, the nut is equipped with card slot, and the locked spacer has and can block
Enter the bending part in the card slot；The locked spacer is equipped with positioning protrusion, and the through-hole, which is equipped with, supplies the positioning protrusion
The positioning groove or the locked spacer being caught in are equipped with positioning groove, and the through-hole is equipped with and is stuck in the positioning groove
Interior positioning protrusion；Positioning protrusion is caught in positioning groove and realizes that the angular position between locked spacer and upper connector is fixed,
After tightening screw thread, bending part is caught in the card slot, so far realizes angle between screw, locked spacer and upper connector three
Fixation to position, to installation space without particular/special requirement；And bending part is caught in the card slot, and bending part is as locked spacer
A part, the intensity of bending part and rigidity are stronger, will not occur to surrender and be broken, and can prevent to cause secondary failure；It is described logical
The top in hole is counterbore, and after tightening screw, the nut is located in the counterbore, by the way of embedment, no projection, and application
Strong jamming will not be generated in interior stream region, while also can avoid impact of the flow field to chocking construction；The top of the cylinder can be with
The bending part is also served as, the top of cylinder can be squeezed into card slot, and bending part can be caught in the card slot from any angle, can
It is applicable to the coupled position of accurate control moment.
Detailed description of the invention
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, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural schematic diagram of through-hole in the utility model embodiment；
Fig. 4 is the structural schematic diagram of screw in the utility model embodiment；
Fig. 5 is the top view of Fig. 4.
Specific embodiment
As shown in Figures 1 to 5, a kind of screw thread stop structure, to what upper connector 1 and lower connector 2 linked together
Screw 3 carries out stop, described logical including the through-hole 4 being located on upper connector 1 and the threaded hole 5 being located on the lower connector 2
Locked spacer is equipped between hole 4 and the nut 6 of the screw, the nut 6 is equipped with card slot 7, and the locked spacer has can
The bending part 8 being caught in the card slot 7；The locked spacer is equipped with positioning protrusion 9, and the through-hole 4 is equipped with for described fixed
The positioning groove 10 or the locked spacer that position protrusion 9 is caught in are equipped with positioning groove, and the through-hole is described equipped with being stuck in
Positioning protrusion in positioning groove.Phase between locked spacer and upper connector may be implemented in the cooperation of positioning protrusion and positioning groove
Fixation to position, bending part are caught in card slot, and the fixation of position between locked spacer and screw may be implemented, so just can be real
Angular position is reliably fixed between existing screw, locked spacer and upper connector three.
In the present embodiment, the top of the through-hole 4 is counterbore 11, and the nut 6 is cylinder, and the screw is countersunk head
Screw, after tightening screw, the nut is located in the counterbore, is in flush type, and the locked spacer includes being located at the nut 6
Cylinder 12 between 11 inner wall of outer peripheral surface and the counterbore, the positioning protrusion 9 are located at the outer wall of the cylinder 12, the counterbore 11
Inner wall be equipped with the positioning groove 10, the outer peripheral surface of the nut 6 is equipped with the card slot 7, and the top of the cylinder 12 is equipped with
The bending part 8 that can be caught in the card slot 7.Positioning protrusion is caught in positioning groove and realizes locked spacer and upper connector
Between angular position fix, after tightening screw thread, bending part is caught in the card slot, so far realize screw, locked spacer and
The fixation of angular position between upper connector three, to installation space without particular/special requirement；And bending part is caught in the card slot,
The a part of bending part as locked spacer, the intensity and rigidity of bending part are stronger, will not occur to surrender and be broken, can prevent to draw
Send out secondary failure；The top of the through-hole is counterbore, and screw is sunk screw, and after tightening screw, the nut is located at described heavy
In hole, by the way of embedment, no projection will not generate strong jamming applied to interior stream region, while also can avoid flow field pair
The impact of chocking construction.The locked spacer includes the cylinder 12 between 11 inner wall of 6 outer peripheral surface of nut and the counterbore,
For stop locked spacer without exposed, stream field can also greatly reduce weakening of the interior stream impact to reliable lock without strong jamming.
When the locked spacer is equipped with the positioning groove and the positioning groove is located at the cylinder top, institute is removed
The top for stating the cylinder outside positioning groove also serves as the bending part, when the locked spacer be equipped with the positioning groove and
When the positioning groove is not located at the cylinder top, the top of the cylinder also serves as the bending part；When the locked spacer
Equipped with the positioning protrusion and when the positioning protrusion is located at the cylinder top, the cylinder in addition to the positioning protrusion
Top also serve as the bending part, when the locked spacer be equipped with the positioning protrusion and the positioning protrusion be not located at it is described
When cylinder top, the top of the cylinder also serves as the bending part.The top of the cylinder can also serve as the bending part, cylinder
Top can be squeezed into card slot, bending part can be caught in the card slot from any angle, be applicable to need accurately to control
The coupled position of torque.The top of the cylinder can also serve as the bending part, and the strength and stiffness of bending part are relatively strong, that is, protect
Reliable lock has been demonstrate,proved, and has been not susceptible to surrender and be broken, has avoided causing secondary failure.
As shown in Figure 1, the lower part of the cylinder 12 is connected with the gasket ring 13 covered outside the screw 3, the gasket ring 13
Between the nut 6 and the bottom of the counterbore 11.Gasket ring and cylinder form cup-like structure in this way, and intensity greatly enhances,
Stop can be made relatively reliable.After screw is tightened, nut compressing gasket ring, the caused friction of suppress effect of the nut to gasket ring
Under the adjection of power, locked spacer and upper connecting piece Peripheric locking reliability are very strong.
As shown in Fig. 2, the card slot 7 be it is multiple, at least two card slots 7 are caught in by the bending part 8.Can have in this way
Effect improves the intensity of stop, locking.The top of the cylinder can also serve as the bending part, and the top of cylinder can be squeezed into card
Slot, stop locked spacer are squeezed into position freedom, are accurately controlled convenient for screw-down torque, at least two card slots 7 are by the bending
Portion 8 is caught in, it can be achieved that many places are locked, and the Peripheric locking reliability of locked spacer and screw is also very strong.
A card slot 7 that portion's card 8 enters and positioning groove 10 are bent in 90 degree or 180 degree.
Preferably, two card slots 7 are caught in by the bending part 8, are bent a card slot that portion 8 is caught in and positioning is recessed
Slot is in 90 degree, another card slot and positioning groove that the portion of being bent is caught in are in 180 degree.
When assembly, first the hole heart of the threaded hole on the through-hole of upper connector and lower connector is aligned, places into stop pad
Piece, positioning protrusion is caught in positioning groove when being put into, then is screwed into screw, and bending part is caught in card slot after tightening.
The contact surface of the screw and the locked spacer is equipped with the layer for reducing frictional force between screw and locked spacer
Face.Preferably, the level is to apply silver layer.
Screw can take spraying silver layer etc. to the rotating friction force of locked spacer on the two contact surface when tightening to weaken
Friction-reducing measures.
The utility model is cooperated by using the preferable cup-shaped chocking construction of globality with screw thread pair, can be solved existing
Chocking construction is high to requirements of installation space, lock foot/lock saves/is lockstitched a border easy fracture and cause secondary failure, be applied to interior stream region pair
The problem of flow field interference is big and is not suitable for accurate control moment.It is highly suitable to be applied for that vibration is big, reliability requirement is higher
Inside rocket engine turbopump, other occasions as more demanding to locking thread inside pump, turbine, compressor can also be answered
With.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of screw thread stop structure carries out stop, feature to the screw that upper connector and lower connector link together
It is, including the through-hole being located on upper connector and the threaded hole being located on the lower connector, the through-hole and the screw
Nut between be equipped with locked spacer, the nut be equipped with card slot, the locked spacer have can be caught in the card slot
Bending part；The locked spacer is equipped with positioning protrusion, and the through-hole is equipped with the positioning groove being caught in for the positioning protrusion,
Or the locked spacer is equipped with positioning groove, the through-hole is equipped with the positioning protrusion being stuck in the positioning groove.
2. screw thread stop structure as described in claim 1, which is characterized in that the top of the through-hole is counterbore, the stop
Gasket includes the cylinder between the nut outer peripheral surface and the counterbore inner wall, and the positioning protrusion is located at the outer of the cylinder
Wall, the inner wall of the counterbore are equipped with the positioning groove, and the outer peripheral surface of the nut is equipped with the card slot, the top of the cylinder
Equipped with the bending part that can be caught in the card slot.
3. screw thread stop structure as claimed in claim 2, which is characterized in that when the locked spacer is recessed equipped with the positioning
Slot and when the positioning groove is located at the cylinder top, the top of the cylinder in addition to the positioning groove also serves as described curved
Folding part, it is described when the locked spacer is equipped with the positioning groove and the positioning groove is not located at the cylinder top
The top of cylinder also serves as the bending part；When the locked spacer is equipped with the positioning protrusion and the positioning protrusion is located at institute
When stating cylinder top, the top of the cylinder in addition to the positioning protrusion also serves as the bending part, when on the locked spacer
Equipped with the positioning protrusion and when the positioning protrusion is not located at the cylinder top, the top of the cylinder also serves as the bending
Portion.
4. screw thread stop structure as claimed in claim 2, which is characterized in that the lower part of the cylinder, which is connected with, to be covered in the spiral shell
Gasket ring outside nail, the gasket ring is between the nut and the bottom of the counterbore.
5. screw thread stop structure as described in claim 1, which is characterized in that the card slot is multiple, at least two cards
Slot is caught in by the bending part.
6. screw thread stop structure as claimed in claim 2, which is characterized in that the screw is sunk screw, after tightening screw,
The nut is located in the counterbore.
7. screw thread stop structure as claimed in claim 2, which is characterized in that the card slot that the portion of being bent is caught in and positioning are recessed
Slot is in 90 degree or 180 degree.
8. screw thread stop structure as claimed in claim 2, which is characterized in that two card slots are caught in by the bending part,
The card slot and positioning groove that the portion of being bent is caught in are in 90 degree, another card slot that the portion of being bent is caught in is in positioning groove
180 degree.
9. screw thread stop structure as described in any one of claim 1 to 7, which is characterized in that the screw and the stop pad
The contact surface of piece is equipped with the level for reducing frictional force between screw and locked spacer.
10. screw thread stop structure as claimed in claim 9, which is characterized in that the level is to apply silver layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820492596.5U CN208503228U (en) | 2018-04-09 | 2018-04-09 | A kind of screw thread stop structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820492596.5U CN208503228U (en) | 2018-04-09 | 2018-04-09 | A kind of screw thread stop structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208503228U true CN208503228U (en) | 2019-02-15 |
Family
ID=65295819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820492596.5U Withdrawn - After Issue CN208503228U (en) | 2018-04-09 | 2018-04-09 | A kind of screw thread stop structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208503228U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278659A (en) * | 2018-04-09 | 2022-04-05 | 北京星际荣耀空间科技股份有限公司 | Screw thread locking structure |
-
2018
- 2018-04-09 CN CN201820492596.5U patent/CN208503228U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278659A (en) * | 2018-04-09 | 2022-04-05 | 北京星际荣耀空间科技股份有限公司 | Screw thread locking structure |
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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: 20200102 Address after: 100176 Beijing Daxing District Beijing economic and Technological Development Zone, 9 South of Shing Sheng 1 1 3 story 329 Co-patentee after: Beijing Star glory Technology Co., Ltd Patentee after: Beijing interstellar glory InterSpace Technology Ltd Address before: 100176 Beijing Daxing District Beijing economic and Technological Development Zone, 9 South of Shing Sheng 1 1 3 story 329 Patentee before: Beijing interstellar glory InterSpace Technology Ltd |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100032 1-14-214, 2nd floor, 136 Xiwai street, Xicheng District, Beijing Patentee after: Beijing Star glory Space Technology Co.,Ltd. Patentee after: Beijing Star glory Technology Co.,Ltd. Address before: 100176 329, 3rd floor, building 1, No.9, Disheng South Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: BEIJING XINGJIRONGYAO SPACE TECHNOLOGY Co.,Ltd. Patentee before: Beijing Star glory Technology Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190215 Effective date of abandoning: 20210408 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190215 Effective date of abandoning: 20210408 |