CN108547850A - Check washer and its screw with the check washer - Google Patents
Check washer and its screw with the check washer Download PDFInfo
- Publication number
- CN108547850A CN108547850A CN201810564542.XA CN201810564542A CN108547850A CN 108547850 A CN108547850 A CN 108547850A CN 201810564542 A CN201810564542 A CN 201810564542A CN 108547850 A CN108547850 A CN 108547850A
- Authority
- CN
- China
- Prior art keywords
- check washer
- gap
- space
- elastic portion
- shim body
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 5
- 238000004512 die casting Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 210000000515 tooth Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
- F16B43/02—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a kind of check washers, including shim body, the front of the shim body is equipped in the shrapnel circumferentially divided equally, the shrapnel includes the root being connect with shim body and the elastic portion that is connect with root, elastic space is formd between elastic portion and shim body, the elastic space includes the first gap, the second gap and third space, and towards the second gap in state is gradually reduced, third space to the second gap forms drops structure in the first gap；Accommodating space is formd between two adjacent roots, when elastic portion is extruded in an axial direction, the elastic portion matching coincide in accommodating space, and the free end end face of elastic portion, inner surface are bonded with the inner wall of accommodating space respectively.The present invention can improve the anti-loose ability of gasket, and can realize and be used for multiple times, and extend the service life of check washer.The invention also discloses a kind of screws with the check washer.
Description
Technical field
The invention belongs to machine component fields, and in particular to a kind of gasket, more particularly to a kind of check washer.The present invention is also
It is related to a kind of screw with the check washer.
Background technology
Gasket is widely used in the connection of mechanical structure, is mainly used for reinforcing the mechanical seal between component of machine.
With the improvement of bolt, check washer comes into being.
108087552 A of Chinese patent publication No. CN disclose a kind of check washer, including matching used Upper gasket with
Lower gasket, Upper gasket are upper annular gasket structure, and front of annular gasket structure is equipped with several lockings rotated in the forward direction on this
Tight slot, several upper locking slots are circumferentially uniformly sequentially arranged along upper annular gasket, and reverse side of annular gasket structure is set on this
There is the upper locking teeth of several reverse rotations；Lower gasket is lower annular gasket structure, is equipped in the front of the lower annular gasket structure
The lower locking slot of several reverse rotations, which is circumferentially uniformly sequentially arranged along lower annular gasket, in the lower ring
The reverse side of shape gasket construction is equipped with several lower locking teeths rotated in the forward direction；The reverse side of Upper gasket and the reverse side of lower gasket pass through locking
Tight ratcheting lower locking teeth locking.The check washer of above structure, by engaging for upper locking teeth and lower locking teeth, upper locking slot with
The anti-loosing effect of lower gasket is effectively ensured in the setting of lower locking slot, ensures the connection between gasket and other upper lower gaskets
Reliably, still, the gasket of this structure is loosened in the environment of with vibrations (or jolting) due to itself resonance,
This makes annular gasket have the trend for loosening and detaching in an axial direction with lower annular gasket, this may make mechanical component due to gasket
Loosening leads to the generation of major accident.
Invention content
Technical problem to be solved by the invention is to provide a kind of check washers, it can be in appointing in addition to artificial loose unloading
It can maintain the lock status in the case of meaning, ensure that locking function is not cracked.
In order to solve the above technical problems, a kind of technical solution of check washer of the present invention is：
The front of a kind of check washer, including shim body, the shim body is equipped in the shrapnel circumferentially divided equally, described
Shrapnel includes the root being connect with shim body and the elastic portion that is connect with root, is formed between elastic portion and shim body
Elastic space, the elastic space include the first gap, the second gap and third space, and the first gap is in towards the second gap
State is gradually reduced, third space to the second gap forms drops structure；It is formd between two adjacent roots accommodating
Space, when elastic portion is extruded in an axial direction, the elastic portion matching coincide in accommodating space, and the free end end of elastic portion
Face, inner surface are bonded with the inner wall of accommodating space respectively.
The size in second gap is 0.2-0.5mm.
The shrapnel is an integral molding structure with shim body.
The front of the shrapnel is equipped with anti-slop serrations, and anti-slop serrations are ratchet type.
The reverse side of the shim body is equipped with anti-slop serrations, and anti-slop serrations are ratchet type.
The third space is circular hole, and the second gap is close in the periphery of circular hole, and between the second gap and third space
Pass through arc transition.
The domed shape of inner surface of the elastic portion, free end end face include the first inclined-plane docked with inner surface and
The second inclined-plane docked with the first inclined-plane, the intersection between first inclined-plane and the second inclined-plane are described by arc transition
Angle between second inclined-plane and the first inclined-plane is obtuse angle, is formd between second inclined-plane and the root of adjacent shrapnel small
Notch.
It is equipped with polyurethane in the third space, and is equipped with fill orifice in polyurethane, the both ends of fill orifice are equipped with film,
The film together forms vessel with fill orifice, and glue is perfused in vessel.
The reverse side of the shim body is equipped with hex nut head, and hex nut head is an integral molding structure with shim body.
The present invention also provides a kind of screws with check washer, its technical solution is that：
A kind of screw with check washer, include with the integrally formed screw terminal of the reverse side of check washer and screw rod,
The screw rod includes construction section and thread segment, and the construction section includes direct tube section, the linkage section in direct tube section outer end face, institute is arranged
The peripheral surface for stating linkage section is equipped with fixed plate, and outer end face of the fixed plate apart from direct tube section has spacing distance；In the screw terminal
Equipped with the matched mounting hole of construction section；Pass through die casting riveting molding between the construction section and mounting hole.
The screw terminal is outer-hexagonal head or hexagon socket head or special-shaped head.
What the present invention can reach has the technical effect that：
Compared with prior art, check washer of the invention is squeezed by external force when in use, shrapnel and gasket sheet
Elastic space between body is compressed gradually so that check washer have upwards with downward active force, to reinforce spiral shell
The firmness of the connection of silk and workpiece, prevents loosened screw；
Compared with prior art, check washer of the invention, the intersection between the first inclined-plane and the second inclined-plane pass through circle
Arc transition is conducive to shrapnel when compressed, preferably coincide with elastic space；
Compared with prior art, check washer of the invention may be integrally formed nut and spiral shell with check washer
Silk, can promote the whole anti-loosening property of screw, nut.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments：
Fig. 1 is the stereogram of an angle of check washer of the present invention；
Fig. 2 is the stereogram of another angle of check washer of the present invention；
Fig. 3 is the stereogram of the check washer with hex nut head of the present invention；
Fig. 4 is the sectional view of the check washer with hex nut head of the present invention；
Fig. 5 is that the screw terminal for the screw that the present invention has check washer is the stereogram of interior hexagonal；
Fig. 6 is that the screw terminal for the screw that the present invention has check washer is the stereogram of interior hexagonal；
Fig. 7 is that the screw terminal for the screw that the present invention has check washer is the stereogram of outer-hexagonal；
Fig. 8 is that the screw terminal for the screw that the present invention has check washer is the sectional view of outer-hexagonal；
Fig. 9 is the structural schematic diagram of the polyurethane in the third space of the present invention.
Specific implementation mode
Embodiment one
It please refers to Fig.1 to Fig.4, the present invention provides a kind of nut, including hex nut head 1 and check washer 2, hex nut
First 1 is an integral molding structure with check washer 2.
The front of the check washer 2, including shim body 3, the shim body 3 is equipped in the shrapnel 4 circumferentially divided equally,
The shrapnel 4 includes the root 5 being connect with shim body 3 and the elastic portion 6 being connect with root 5, elastic portion 6 and gasket sheet
Foring elastic space 7 between body 3, the elastic space 7 includes the first gap 8, the second gap 9 and third space 10, and first
Towards the second gap 9 in state is gradually reduced, 10 to the second gap 9 of third space forms drops structure in gap 8；Adjacent
Accommodating space is formd between two roots 5, when elastic portion 6 is extruded in an axial direction, the matching of the elastic portion 6 coincide accommodating
In space, and the free end end face 11 of elastic portion 6, inner surface 12 are bonded with the inner wall of accommodating space respectively.
The shrapnel 4 is an integral molding structure with shim body 3.
The front of the shrapnel 4 is equipped with anti-slop serrations 13, and anti-slop serrations 13 are ratchet type.
The reverse side of the shim body 3 is equipped with anti-slop serrations 14, and anti-slop serrations 14 are ratchet type.
The third space 10 is circular hole, and the second gap 9 is close in the periphery of circular hole, and the second gap 9 and third space
Pass through 15 transition of circular arc between 10.
Referring to Fig. 9, being equipped with polyurethane 27 in the third space 10, and it is equipped with fill orifice 28 in polyurethane 27, fills
The both ends of orifice 28 are equipped with film 29, and the film 29 together forms vessel with fill orifice 28, glue is perfused in vessel.Its
Middle film 29 is plastic film, and when shrapnel 4 is extruded, third space 10 is then squeezed polyurethane 27 by certain pressure,
Glue in vessel is under pressure, and breaks through plastic film 29, and glue flows to 13 position of anti-slop serrations of shrapnel 4, then can be to anti-
Loose gasket 2 plays further fixed function.
The domed shape of inner surface of the elastic portion 6, free end end face 11 include the first inclined-plane docked with inner surface 12
16 and the second inclined-plane 17 for being docked with the first inclined-plane 16, the intersection between first inclined-plane, 16 and second inclined-plane 17 is logical
Cross arc transition, the angle between second inclined-plane, 17 and first inclined-plane 16 is obtuse angle, second inclined-plane 17 with it is adjacent
Small gap 18 is formd between the root 5 of shrapnel 4.
The hex nut head 1 is in the reverse side of shim body 3.
Design when, the screw hole internal diameter of hex nut head 1 be less than or equal to check washer 2 centre bore.
Embodiment two
It please refers to Fig.1, Fig. 2, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, the present invention provides a kind of screw, including screw terminal 19 and screw rod
20, the reverse side of the screw terminal 19 is integrally formed with check washer 2, the check washer 2, including shim body 3, the gasket
The front of ontology 3 be equipped in circumferentially divide equally shrapnel 4, the shrapnel 4 include the root 5 being connect with shim body 3 and with root
The elastic portion 6 that portion 5 connects, forms elastic space 7 between elastic portion 6 and shim body 3, the elastic space 7 includes first
Gap 8, the second gap 9 and third space 10, the first gap 8 towards the second gap 9 in the state that is gradually reduced, third space 10 to
Second gap 9 forms drops structure；Form accommodating space between two adjacent roots 5, when elastic portion 6 in an axial direction by
When extruding, the elastic portion 6 matching coincide in accommodating space, and the free end end face 11 of elastic portion 6, inner surface 12 respectively with
The inner wall of accommodating space is bonded.
The shrapnel 4 is an integral molding structure with shim body 3.
The front of the shrapnel 4 is equipped with anti-slop serrations 13, and anti-slop serrations 13 are ratchet type.
The reverse side of the shim body 3 is equipped with anti-slop serrations 14, and anti-slop serrations 14 are ratchet type.
The third space 10 is circular hole, and the second gap 9 is close in the periphery of circular hole, and the second gap 9 and third space
Pass through 15 transition of circular arc between 10.
The domed shape of inner surface of the elastic portion 6, free end end face 11 include the first inclined-plane docked with inner surface 12
16 and the second inclined-plane 17 for being docked with the first inclined-plane 16, the intersection between first inclined-plane, 16 and second inclined-plane 17 is logical
Cross arc transition, the angle between second inclined-plane, 17 and first inclined-plane 16 is obtuse angle, second inclined-plane 17 with it is adjacent
Small gap 18 is formd between the root 5 of shrapnel 4.
The screw rod 20 includes construction section 21 and thread segment 22, and the construction section 21 includes direct tube section 23, is arranged in straight tube
The peripheral surface of the linkage section 24 of 23 outer end faces of section, the linkage section 24 is equipped with fixed plate 25, and fixed plate 25 is apart from direct tube section 23
Outer end face has spacing distance；It is equipped in the screw terminal 19 and the matched mounting hole of construction section 26；The construction section 21 and peace
Dress passes through die casting riveting molding between hole 26.
The screw terminal 19 is outer-hexagonal head or hexagon socket head or special-shaped head.
It makes an explanation below to the operation principle of the check washer of the present invention：
The check washer 2 of the present invention, elastic space 7 include three sections, and third space 10 is circular hole, can prevent shrapnel 4
Recurring structure fractures, moreover it is possible to the elastic deformation ability of 6 opposing root 5 of elastic portion is improved, in addition, the height in the second gap 9
It is minimum, moreover, the second gap 9 is not at the lowest point of third space 10, pass through between the second gap 9 and third space 10
Circular arc 15 smoothly transits, this make elastic portion 6 the position of 9 face of the second gap have arching upward slightly (this arches upward be exactly on
State described arc transition), this, which arches upward, can help elastic portion 6 to have stronger elasticity capacity, and can make check washer 2
It repeatedly utilizes, ensures the normal work of shrapnel 4；
Angle between second inclined-plane 17 and the first inclined-plane 16 is obtuse angle so that the boundary between two adjacent shrapnels 4
Position forms a small gap 18, and when shrapnel 4 is squeezed, what is be located next to due to the second inclined-plane 17 is exactly anti-slop serrations 13,
That is, the both sides of small gap 18 are head end anti-slop serrations 13, end anti-slop serrations 13 on former and later two shrapnels 4 respectively, we
Know, for shrapnel 4 at extrusion parts surface, anti-slop serrations 13 can generate component surface certain extruding groove, and squeeze
The both sides of groove can have protrusion upwards, at this point, protrusion is in small gap 18, this further prevents check washer 2 to revolve
Then it loosens.
When the present invention screw and nut when in use, check washer 2 is rotated with nut 1 or screw terminal 19, at this point, anti-slop serrations
13 occur sliding friction, and there are slight deformation, this deformation in small gap 18, can also rise after final screw or nut fastening
To locking effect.
It is provided for the embodiments of the invention a kind of check washer above and its screw with the check washer carries out
It is discussed in detail, principle and implementation of the present invention are described for specific case used herein, above example
Illustrate to be merely used to help understand disclosed technical solution；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not
It is interpreted as the limitation of the present invention.
Claims (10)
1. a kind of check washer, it is characterised in that：Including shim body, it is in circumferentially to divide equally that the front of the shim body, which is equipped with,
Shrapnel, the shrapnel include the root being connect with shim body and the elastic portion that is connect with root, elastic portion and shim body
Between form elastic space, the elastic space includes the first gap, the second gap and third space, and the first gap is towards the
In state is gradually reduced, third space to the second gap forms drops structure in two gaps；Shape between two adjacent roots
At accommodating space, when elastic portion is extruded in an axial direction, the elastic portion matching coincide in accommodating space, and elastic portion
Free end end face, inner surface are bonded with the inner wall of accommodating space respectively.
2. a kind of check washer according to claim 1, it is characterised in that：The domed shape of inner surface of the elastic portion,
Free end end face includes the first inclined-plane docked with inner surface and the second inclined-plane for being docked with the first inclined-plane, and described first tiltedly
For intersection between face and the second inclined-plane by arc transition, the angle between second inclined-plane and the first inclined-plane is obtuse angle,
Small gap is formd between second inclined-plane and the root of adjacent shrapnel.
3. a kind of check washer according to claim 1 or 2, it is characterised in that：The third space is circular hole, between second
Gap is close in the periphery of circular hole, and passes through arc transition between the second gap and third space.
4. a kind of check washer according to claim 3, it is characterised in that：The shrapnel is integrally formed with shim body
Structure.
5. a kind of check washer according to claim 4, it is characterised in that：The size in second gap is 0.2-
0.5mm。
6. a kind of check washer according to claim 5, it is characterised in that：The front of the shrapnel is equipped with anti-slop serrations, prevents
Slip teeth is ratchet type；The reverse side of the shim body is equipped with anti-slop serrations, and anti-slop serrations are ratchet type.
7. a kind of check washer according to claim 1, it is characterised in that：Polyurethane is equipped in the third space, and
Fill orifice is equipped in polyurethane, the both ends of fill orifice are equipped with film, and the film together forms vessel, vessel with fill orifice
Inside it is perfused with glue.
8. a kind of check washer according to claim 1, it is characterised in that：The reverse side of the shim body is equipped with hexagonal spiral shell
Female, hex nut head are an integral molding structure with shim body.
9. a kind of screw with check washer, it is characterised in that：Including the locking pad described in claim 1-7 any one
Piece, further include with the integrally formed screw terminal of the reverse side of check washer and screw rod, the screw rod includes construction section and screw thread
Section, the construction section include direct tube section, the linkage section in direct tube section outer end face are arranged, and the peripheral surface of the linkage section, which is equipped with, to be fixed
Plate, outer end face of the fixed plate apart from direct tube section have spacing distance；It is equipped with and the matched mounting hole of construction section in the screw terminal；
Pass through die casting riveting molding between the construction section and mounting hole.
10. a kind of screw with check washer according to claim 9, it is characterised in that：The screw terminal is outer six
Angle head or hexagon socket head or special-shaped head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810564542.XA CN108547850A (en) | 2018-06-04 | 2018-06-04 | Check washer and its screw with the check washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810564542.XA CN108547850A (en) | 2018-06-04 | 2018-06-04 | Check washer and its screw with the check washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108547850A true CN108547850A (en) | 2018-09-18 |
Family
ID=63492391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810564542.XA Pending CN108547850A (en) | 2018-06-04 | 2018-06-04 | Check washer and its screw with the check washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108547850A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139669A (en) * | 2018-10-26 | 2019-01-04 | 北京中车重工机械有限公司 | A kind of check washer |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3258047A (en) * | 1963-05-04 | 1966-06-28 | Parechoc Sa | Safety device for screw assembling |
| JPH0732216U (en) * | 1993-11-26 | 1995-06-16 | 株式会社ユニシアジェックス | Bolt mounting structure |
| KR20040063046A (en) * | 2003-01-04 | 2004-07-12 | 홍석용 | male threaded fastener for preventing release |
| JP2006307963A (en) * | 2005-04-28 | 2006-11-09 | Marunaka:Kk | Locking washer and screws with locking washer attaching same |
| CN101077576A (en) * | 2007-07-11 | 2007-11-28 | 胡振钱 | Electric hammer and its front cover anti-loosing mechanism |
| KR20110089391A (en) * | 2011-07-12 | 2011-08-08 | 석 규 이 | Loosening Floating Nut |
| CN204333374U (en) * | 2015-01-13 | 2015-05-13 | 武汉凡谷电子技术股份有限公司 | A kind of novel all-in-one center conductor combining structure |
| CN105003519A (en) * | 2015-08-04 | 2015-10-28 | 申书达 | Detachable looseness-preventing bolt or screw assembly |
| CN105221189A (en) * | 2015-10-28 | 2016-01-06 | 苏州诺迅汽车零部件有限公司 | The riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections |
| CN105742773A (en) * | 2016-02-29 | 2016-07-06 | 深圳三星通信技术研究有限公司 | Cavity filter and self-locking tuning assembly thereof |
| CN208268210U (en) * | 2018-06-04 | 2018-12-21 | 杨小华 | Check washer and its screw with the check washer |
-
2018
- 2018-06-04 CN CN201810564542.XA patent/CN108547850A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3258047A (en) * | 1963-05-04 | 1966-06-28 | Parechoc Sa | Safety device for screw assembling |
| JPH0732216U (en) * | 1993-11-26 | 1995-06-16 | 株式会社ユニシアジェックス | Bolt mounting structure |
| KR20040063046A (en) * | 2003-01-04 | 2004-07-12 | 홍석용 | male threaded fastener for preventing release |
| JP2006307963A (en) * | 2005-04-28 | 2006-11-09 | Marunaka:Kk | Locking washer and screws with locking washer attaching same |
| CN101077576A (en) * | 2007-07-11 | 2007-11-28 | 胡振钱 | Electric hammer and its front cover anti-loosing mechanism |
| KR20110089391A (en) * | 2011-07-12 | 2011-08-08 | 석 규 이 | Loosening Floating Nut |
| CN204333374U (en) * | 2015-01-13 | 2015-05-13 | 武汉凡谷电子技术股份有限公司 | A kind of novel all-in-one center conductor combining structure |
| CN105003519A (en) * | 2015-08-04 | 2015-10-28 | 申书达 | Detachable looseness-preventing bolt or screw assembly |
| CN105221189A (en) * | 2015-10-28 | 2016-01-06 | 苏州诺迅汽车零部件有限公司 | The riveted structure of the spacer sleeve on turbosupercharger nozzle ring capable of changing cross sections |
| CN105742773A (en) * | 2016-02-29 | 2016-07-06 | 深圳三星通信技术研究有限公司 | Cavity filter and self-locking tuning assembly thereof |
| CN208268210U (en) * | 2018-06-04 | 2018-12-21 | 杨小华 | Check washer and its screw with the check washer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139669A (en) * | 2018-10-26 | 2019-01-04 | 北京中车重工机械有限公司 | A kind of check washer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11732742B2 (en) | Anti-loosening bolt and nut assembly structure | |
| JP3234710U (en) | Anti-vibration nut kit | |
| CN208268210U (en) | Check washer and its screw with the check washer | |
| US20190107141A1 (en) | Lock bolt assembly | |
| CN203215125U (en) | Self-lock thread connecting pipe joint | |
| CN108662005A (en) | A kind of special eccentric locking nut | |
| CN108547850A (en) | Check washer and its screw with the check washer | |
| CN108757700A (en) | Deformation type anti-loosen screw nut component | |
| CN209654405U (en) | Deformation type anti-loosen screw nut component | |
| CN109372880B (en) | Anti-loosening thread | |
| CN101818754B (en) | Lock nut for injection machine | |
| CN201944074U (en) | Self-locking nut | |
| CN217603122U (en) | Bolt connection anti-loosening assembly | |
| CN201671942U (en) | Locking nut | |
| CN210686618U (en) | Anti-loosening nut and bolt and nut assembly | |
| CN108775325A (en) | Deformation type combines stop nut | |
| CN212838889U (en) | Anti-loose nut | |
| CN207297580U (en) | Conical surface stop nut | |
| CN206972734U (en) | Novel high-performance locknut | |
| CN209875675U (en) | Connecting bolt | |
| CN210830100U (en) | Elastic deformation lock nut | |
| CN209671385U (en) | Deformation type combines stop nut | |
| CN104121268B (en) | Anti-loose and anti-slip screwing assembly and bolt thereof | |
| CN202833558U (en) | Anti-loose elastic sheet nut | |
| CN218480035U (en) | Anti-loosening combined bolt for automobile generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |