CN112303093A - Cotter bolt and coupling assembling - Google Patents
Cotter bolt and coupling assembling Download PDFInfo
- Publication number
- CN112303093A CN112303093A CN202011211281.7A CN202011211281A CN112303093A CN 112303093 A CN112303093 A CN 112303093A CN 202011211281 A CN202011211281 A CN 202011211281A CN 112303093 A CN112303093 A CN 112303093A
- Authority
- CN
- China
- Prior art keywords
- cotter
- bolt
- shaped hole
- bolt body
- pin
- 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.)
- Granted
Links
- 230000001808 coupling Effects 0.000 title description 3
- 238000010168 coupling process Methods 0.000 title description 3
- 238000005859 coupling reaction Methods 0.000 title description 3
- 238000009434 installation Methods 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 230000002265 prevention Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000903 blocking Effects 0.000 description 3
- 238000011068 load Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive Effects 0.000 description 1
- 230000004301 light adaptation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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, WEDGES, JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
- F16B35/044—Specially-shaped ends
-
- 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, WEDGES, JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
Abstract
The invention belongs to the field of electric power construction, and discloses a cotter bolt and a connecting assembly. The split pin bolt comprises a bolt body and a split pin, the bolt body penetrates through the nut, a V-shaped hole is formed in the end part of the bolt body, a clamping groove is formed in the outer wall of the bolt body, and the V-shaped hole is communicated with the clamping groove; the split pin opening is of a V-shaped structure, and the tail part of the split pin is provided with a clamping bulge. When the clamping device is in an installation state, the cotter pin is arranged to penetrate through the V-shaped hole, and the clamping protrusion is clamped in the clamping groove; in the use state, the cotter is configured to slide relative to the V-shaped hole and extend out of the bolt body, so that the cotter can be abutted against the nut. The cotter bolt and the connecting assembly provided by the invention have the advantages of simple structure, convenience in installation, improvement of working efficiency, prevention of problems of cotter omission and the like.
Description
Technical Field
The invention relates to the field of electric power construction, in particular to a cotter bolt and a connecting assembly.
Background
The split pin is a mechanical part, and R type split pin is often used in the electric power construction field, and the nut is screwed up the back, inserts the circular port on the bolt body with R type split pin one end, and the crooked clamping part of the other end presss from both sides tight bolt body, makes the crooked clamping part outer wall butt of R type split pin in the nut outer wall, plays the effect that prevents the nut not hard up. The R type split pin often takes place neglected loading and is replaced by the phenomenon of foreign matter when the installation, because thicker bolt often blocks R type split pin to and unmanned aerial vehicle shoots the angle problem, lead to that unmanned aerial vehicle tours the image often can't judge whether the R type split pin is omitted, the condition of opening and damage, has seriously increased the work load of checking and accepting, drags slow checking and accepting work and engineering process of putting into production.
Disclosure of Invention
The invention aims to provide a cotter bolt and a connecting assembly, which have the advantages of simple structure, convenience in installation, improvement of working efficiency, prevention of the problems of cotter omission and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cotter pin bolt comprising:
the bolt body penetrates through the nut, a V-shaped hole is formed in the end part of the bolt body, a clamping groove is formed in the outer wall of the bolt body, and the V-shaped hole is communicated with the clamping groove;
the opening of the cotter pin is of a V-shaped structure, and the tail part of the cotter pin is provided with a clamping bulge;
in the installation state, the cotter pin is configured to penetrate through the V-shaped hole, and the clamping protrusion is clamped in the clamping groove;
in a use state, the cotter pin is configured to slide relative to the V-shaped hole and extend out of the bolt body, so that the cotter pin can be abutted against the nut.
Preferably, the clamping groove is formed in the outer side of the V-shaped hole along the circumferential direction of the bolt body, and the clamping protrusion is arranged at the tail of the opening pin along the circumferential direction of the bolt body.
Preferably, the outer wall of the cotter is convexly provided with a second clamping bulge, and the second clamping bulge can abut against the end face of the V-shaped hole.
Preferably, the inner wall of the V-shaped hole is convexly provided with a first clamping protrusion, and the first clamping protrusion can abut against the second clamping protrusion.
Preferably, the inner wall of the V-shaped hole is convexly provided with an anti-falling bulge, and the anti-falling bulge abuts against the outer wall of the cotter pin.
Preferably, a pressing head is provided at a small end of the cotter pin.
Preferably, the pressing head and the cotter pin are integrally formed.
Preferably, the V-shaped hole has an arc-shaped structure, and the arm of the cotter pin forming the opening has an arc-shaped structure.
Preferably, the cotter pin is coated with an insulating coating.
In order to achieve the above object, the present invention further provides a connecting assembly, which includes the above cotter bolt and the bolt, wherein the bolt body of the cotter bolt is inserted into the nut.
The invention has the beneficial effects that:
according to the cotter bolt, the V-shaped hole and the clamping groove are formed in the end part of the bolt body, the V-shaped hole is communicated with the clamping groove, the structure is simple, the manufacturing is convenient, and the V-shaped hole plays a certain guiding role when the cotter is installed on the bolt body; the opening of the cotter pin is V-shaped, and the tail part of the cotter pin is provided with a clamping bulge. During the mounted state, the split pin is configured to wear to locate V type hole, and through setting up joint arch and joint recess, the protruding joint of joint is in the joint recess, makes bolt body and split pin carry out the joint, connects the split pin in the bolt body, and joint simple structure, connection structure is reliable and stable, and assembly efficiency is high, does not influence subsequent nut and screws up or not hard up work. When the split pin is in use, the head of the split pin is pressed, the split pin slides relative to the V-shaped hole and extends out of the bolt body, opening work of the split pin is completed quickly, the split pin can abut against the nut, the nut is limited, and the phenomenon that the nut is loosened and lost to cause instability of a connecting structure is avoided.
Compared with the R-shaped cotter pin mode adopted in the prior art, the cotter pin bolt provided by the invention has the advantages that when in an installation state, the cotter pin is clamped on the bolt body, so that the problems of missing of the cotter pin, replacement of the cotter pin by foreign matters and the like are prevented; when the split pin is in a use state, a special operating tool is not needed to open the split pin, the structure is simple, and the installation is convenient. Simultaneously, behind the split pin opening and stretch out outside the bolt body, reduced the probability that is blockked by the bolt body, prevent that not hard up from appearing in the nut, the screw up and the fixed of the nut of being convenient for. If the condition that the split pin was omitted or damaged has taken place, can be very easily found by unmanned aerial vehicle, improve troubleshooting fault efficiency, reduce staff intensity of labour.
The connecting component provided by the invention comprises the cotter bolt and the nut, so that the bolt body of the cotter bolt penetrates through the nut, and the connection between the nut and the cotter bolt is realized. After the cotter pin is opened, the cotter pin can abut against the outer wall of the nut to prevent the nut from loosening.
Drawings
FIG. 1 is a partial cross-sectional view of a split pin bolt and a split pin snap-fit connection of a bolt body and a split pin in a connection assembly in accordance with an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a partial cross-sectional view of a cotter pin opening in a cotter pin bolt and connection assembly according to an embodiment of the present invention;
fig. 4 is a partial enlarged view of fig. 2 at B.
In the figure:
1. a bolt body; 11. a V-shaped hole; 111. the anti-drop bulge; 112. a first clamping bulge; 12. clamping the groove;
2. a cotter pin; 21. a pressing head; 22. a second clamping bulge; 221. a clamping groove; 23. clamping the bulges;
3. and a nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The embodiment discloses a cotter bolt and a connecting assembly, and relates to the field of electric power construction. As shown in fig. 1 and 2, the cotter bolt includes a bolt body 1 and a cotter 2. The bolt body 1 penetrates through the nut 3, the end portion of the bolt body 1 is provided with a V-shaped hole 11, the outer wall of the bolt body 1 is provided with a clamping groove 12, and the V-shaped hole 11 is communicated with the clamping groove 12. The opening of the cotter 2 is in a V-shaped structure, and the tail part of the cotter 2 is provided with a clamping bulge 23; in the installation state, the cotter 2 is configured to penetrate through the V-shaped hole 11, and the clamping protrusion 23 is clamped in the clamping groove 12, so that the cotter 2 is installed. In the use state, the cotter 2 is arranged to slide relative to the V-shaped hole 11 and extend out of the bolt body 1, thereby completing the opening of the cotter 2, enabling the cotter 2 to abut against the nut 3, and preventing the nut 3 from loosening.
According to the cotter bolt of the embodiment, the V-shaped hole 11 and the clamping groove 12 are formed in the end part of the bolt body 1, wherein the end face of the V-shaped hole 11 is communicated with the circumferential direction of the clamping groove 12, the structure is simple, the manufacturing is convenient, and the V-shaped hole 11 plays a certain guiding role when the cotter 2 is installed on the bolt body 1; the opening of the cotter 2 is V-shaped, and the tail part of the cotter 2 is provided with a clamping bulge 23. During the mounted state, split pin 2 is configured as wearing to locate V type hole 11, and through setting up joint arch 23 and joint recess 12, joint arch 23 joint in joint recess 12 makes bolt body 1 and split pin 2 carry out the joint, connects split pin 2 in bolt body 1, joint simple structure, and connection structure is reliable and stable, and assembly efficiency height does not influence subsequent nut 3 and screws up or not hard up work. When the split bolt is in use, the head of the split pin 2 is pressed, so that the split pin 2 slides relative to the V-shaped hole 11 and extends out of the bolt body 1, the opening work of the split pin 2 is completed quickly, the split pin 2 can be abutted against the nut 3, the nut 3 is limited, and the phenomenon that the nut 3 is loosened and lost to cause instability of a connecting structure is prevented.
Compared with the prior art which adopts an R-shaped cotter way, the cotter 2 is clamped on the bolt body 1 in the installation state, so that the problems that the cotter 2 is omitted, replaced by foreign matters and the like are avoided; when the split pin is in use, the split pin 2 does not need to be opened by a special operating tool, and the split pin is simple in structure and convenient to mount. Simultaneously, behind the split pin 2 opening and stretch out outside bolt body 1, reduced the probability that is blockked by bolt body 1, prevent that nut 3 from appearing not hard up, the screw up and the fixed of nut 3 of being convenient for. If the condition that split pin 2 was omitted or damaged has taken place, can be very easily by unmanned aerial vehicle discovery, improve troubleshooting fault efficiency, reduce staff intensity of labour.
Further, as shown in fig. 1 and 2, the clamping groove 12 is disposed outside the V-shaped hole 11 along the circumferential direction of the bolt body 1, and the clamping protrusion 23 is disposed at the tail of the cotter 2 along the circumferential direction of the bolt body 1. If set up joint recess 12 at the inner wall of V type hole 11, neither convenient joint, whether also can't confirm split pin 2 joint on bolt body 1 during operating personnel, set up joint recess 12 along 1 circumference direction of bolt body in the outside at V type hole 11, it is corresponding that the afterbody at split pin 2 is provided with joint arch 23 along 1 circumference direction of bolt body, make the protruding 23 joints of joint in joint recess 12, the joint structure is simple structure not only, high durability and convenient installation, still make things convenient for operating personnel to inspect the joint state of split pin 2. If the cotter pin 2 is missed or damaged, the cotter pin 2 can be found and replaced in time.
Further, as shown in fig. 1 and 2, the V-shaped hole 11 has an arc structure, and the arm of the cotter pin 2 forming the opening has an arc structure. Set up V type hole 11 to the arc structure, split pin 2 forms open-ended arm and is the arc structure, and the arc structure has the advantage such as improvement stress intensity, increase lifting surface area. If the opening cross section with V type hole 11 and split pin 2 sets up to the linear type, behind the 2 openings of split pin, split pin 2 butt in 3 outer walls of nut, 2 decurrent power of split pin are given to nut 3, the opening cross section of V type hole 11 and split pin 2 sets up to the linear structure, stress intensity is lower, bearing area is little, cause split pin 2's damage easily, set up to the arc structure through the opening cross section with V type hole 11 and split pin 2, the stress intensity of curved surface is greater than the stress intensity of straight line, stress intensity and atress area have been increased, split pin 2's damage has been prevented, split pin 2's life is improved.
Further, as shown in fig. 2, a retaining protrusion 111 is protruded from an inner wall of the V-shaped hole 11, and the retaining protrusion 111 abuts against an outer wall of the cotter 2. Preferably, the escape prevention protrusion 111 is provided in plurality. By providing the retaining protrusion 111, the retaining protrusion 111 abuts against the outer wall of the cotter 2, thereby preventing the cotter 2 from being lost or lost. If not set up the protruding 111 of anticreep, the protruding 23 joint that breaks away from bolt body 1 of joint of split pin 2 breaks away from bolt body 1's joint recess 12, and split pin 2 takes place the landing and breaks away from bolt body 1, has caused losing of split pin 2, does not have split pin 2 butt in 3 outer walls of nut, and nut 3 is not hard up with bolt body 1's being connected, causes a series of troubles easily, and serious can arouse the incident. Through setting up anticreep arch 111, make the protruding 23 joint of joint in the anticreep recess that anticreep arch 111 and V type hole 11 inner wall formed, prevent dropping once more of split pin 2.
Further, as shown in fig. 3, the small end of the cotter 2 is provided with a pressing head 21. Preferably, the pressing head 21 has a circular structure. The cotter 2 is rapidly opened by sliding the cotter 2 relative to the V-shaped hole 11 and extending out of the bolt body 1 by pressing the pressing head 21, so that the cotter 2 is abutted against the nut 3 to prevent the nut 3 from loosening. If the pressing head 21 is not arranged, although the opening of the cotter pin 2 can be realized, because the part of the cotter pin 2 is small, an operator cannot easily find out the specific position for pressing the cotter pin 2, and the operation difficulty is increased; through setting up the press head 21, not only make split pin 2 discover easily, still increased operating personnel's staff and the area of contact between split pin 2, make things convenient for subsequent tapping work, reduce the work degree of difficulty, improve work efficiency.
Preferably, the pressing head 21 is of an integrally formed structure with the cotter 2. Through setting up press head 21 and split pin 2 integrated into one piece, reduce spare part quantity, press head 21 does not need special construction or uses specific method to install on split pin 2, increases connection structure's stability, reduces wearing and tearing, not only reduces spare part quantity, but also reduction in production cost, material saving.
Further, as shown in fig. 3 and 4, a second retaining projection 22 is convexly provided on the outer wall of the cotter 2, and the second retaining projection 22 can abut against the end surface of the V-shaped hole 11. When the cotter 2 is in a clamping state, the second clamping bulge 22 is convexly arranged on the outer wall of the cotter 2, so that the second clamping bulge 22 is abutted against the end face of the V-shaped hole 11. When the second blocking projection 22 abuts against the end face of the V-shaped hole 11, the operator stops pressing the pressing head 21, and the opening of the cotter pin 2 is completed.
Further, as shown in fig. 4, a first locking protrusion 112 is protruded from an inner wall of the V-shaped hole 11, and the first locking protrusion 112 can abut against the second locking protrusion 22. When the pressing head 21 is pressed and the first locking projection 112 abuts against the second locking projection 22, the pressing is stopped, and the opening operation of the cotter 2 is completed. If the first blocking protrusion 112 and the second blocking protrusion 22 are not provided, in actual operation, the operator only feels that the pressing head 21 is pressed to a certain position to open the cotter 2, the opening angle of the cotter 2 is not accurate enough, and the problem that the cotter 2 is excessively opened or the cotter 2 is incompletely opened is easily caused. The excessive opening of the cotter pin 2 easily causes the cotter pin 2 to break from the opening position, and influences the service life of the cotter pin 2; the cotter 2 is not completely opened, and the effect of preventing the nut 3 from loosening is not achieved. Through setting up protruding 112 of first screens and the protruding 22 of second screens, when pressing the protruding 112 of first screens and the protruding 22 butt position of second screens, operating personnel stops to press, just can confirm the best opening angle of split pin 2, and the simple structure of joint structure, convenient to use does not need unnecessary process just can confirm the opening angle of split pin 2.
Further, the cotter pin 2 is coated with an insulating coating. The split pin 2 that this embodiment provided is installed on the shaft tower, scribbles insulating coating on split pin 2, prevents to take place to electrocute in the installation, protection operating personnel's life safety. And the insulating coating plays a certain role in protecting the cotter pin 2 from mildewing, rusting and corrosion. If the insulating coating is not coated, the cotter pin 2 is conductive if the tower leaks electricity in the construction process, so that operators are easy to get an electric shock, and the life safety is threatened; meanwhile, as the cotter pin 2 is arranged on the tower, no shielding object is arranged around the cotter pin, the cotter pin 2 is easy to damage due to long-time ultraviolet irradiation and rain erosion, and the insulating coating is coated on the cotter pin 2, so that a certain protection effect can be achieved, and the cotter pin is prevented from being damaged.
The present embodiment also discloses a connection assembly comprising the cotter pin bolt and nut 3 described above. The bolt body 1 of the cotter bolt is inserted into the nut 3, the nut 3 is connected to the bolt body 1, and the pressing head 21 of the cotter 2 is pressed to make the cotter 2 abut against the outer wall of the nut 3, thereby preventing the nut 3 from loosening. The coupling assembling that this embodiment provided, simple structure, simple to operate.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A cotter bolt, comprising:
the bolt comprises a bolt body (1) and a nut (3), wherein a V-shaped hole (11) is formed in the end of the bolt body (1), a clamping groove (12) is formed in the outer wall of the bolt body (1), and the V-shaped hole (11) is communicated with the clamping groove (12);
the opening of the cotter pin (2) is of a V-shaped structure, and the tail part of the cotter pin (2) is provided with a clamping bulge (23);
in the installation state, the cotter pin (2) is configured to penetrate through the V-shaped hole (11), and the clamping protrusion (23) is clamped in the clamping groove (12);
in a use state, the cotter pin (2) is configured to slide relative to the V-shaped hole (11) and extend out of the bolt body (1), so that the cotter pin (2) can be abutted with the nut (3).
2. The cotter bolt according to claim 1, characterized in that the clamping groove (12) is arranged outside the V-shaped hole (11) along the circumferential direction of the bolt body (1), and the clamping protrusion (23) is arranged at the tail of the cotter (2) along the circumferential direction of the bolt body (1).
3. The cotter bolt according to claim 1, characterized in that the outer wall of the cotter (2) is provided with a second catching protrusion (22) in a protruding manner, and the second catching protrusion (22) can abut against the end face of the V-shaped hole (11).
4. The cotter bolt according to claim 3, characterised in that the inner wall of the V-shaped hole (11) is provided with a first catching projection (112) in a protruding manner, the first catching projection (112) being capable of abutting against the second catching projection (22).
5. The cotter bolt according to claim 1, characterized in that the inner wall of the V-shaped hole (11) is provided with a retaining protrusion (111) in a protruding manner, and the retaining protrusion (111) abuts against the outer wall of the cotter (2).
6. Cotter bolt according to claim 1, characterized in that the small end of the cotter (2) is provided with a press head (21).
7. Cotter bolt according to claim 6, characterised in that the pressing head (21) is of integral construction with the cotter (2).
8. Cotter bolt according to claim 1, characterised in that the V-shaped hole (11) is of an arc-shaped configuration and the arms of the cotter (2) forming the opening are of an arc-shaped configuration.
9. Cotter bolt according to claim 1, characterized in that the cotter (2) is coated with an insulating coating.
10. A connection assembly, characterized by comprising a cotter bolt and a nut (3) according to any one of claims 1-9, the bolt body (1) of the cotter bolt being threaded through the nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011211281.7A CN112303093B (en) | 2020-11-03 | 2020-11-03 | Cotter bolt and coupling assembling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011211281.7A CN112303093B (en) | 2020-11-03 | 2020-11-03 | Cotter bolt and coupling assembling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112303093A true CN112303093A (en) | 2021-02-02 |
| CN112303093B CN112303093B (en) | 2022-05-24 |
Family
ID=74332738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011211281.7A Active CN112303093B (en) | 2020-11-03 | 2020-11-03 | Cotter bolt and coupling assembling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112303093B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201858233U (en) * | 2010-11-11 | 2011-06-08 | 中国西电电气股份有限公司 | Falling-off prevention connecting pin |
| DE202017004441U1 (en) * | 2017-08-25 | 2017-09-21 | Core Bolt Co., Ltd. | Bolt structure with a built-in locking device |
| CN207848177U (en) * | 2017-12-26 | 2018-09-11 | 澳世腾达国际贸易（天津）有限公司 | A kind of Anti-release screw |
| CN108953335A (en) * | 2018-09-26 | 2018-12-07 | 国网山东省电力公司潍坊供电公司 | A kind of open type pin |
| CN209041299U (en) * | 2018-09-11 | 2019-06-28 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of Anti-off bolt |
| CN211820303U (en) * | 2020-03-20 | 2020-10-30 | 山东鼎益粉末冶金有限公司 | Adjusting bolt for textile machinery |
-
2020
- 2020-11-03 CN CN202011211281.7A patent/CN112303093B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201858233U (en) * | 2010-11-11 | 2011-06-08 | 中国西电电气股份有限公司 | Falling-off prevention connecting pin |
| DE202017004441U1 (en) * | 2017-08-25 | 2017-09-21 | Core Bolt Co., Ltd. | Bolt structure with a built-in locking device |
| CN207848177U (en) * | 2017-12-26 | 2018-09-11 | 澳世腾达国际贸易（天津）有限公司 | A kind of Anti-release screw |
| CN209041299U (en) * | 2018-09-11 | 2019-06-28 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of Anti-off bolt |
| CN108953335A (en) * | 2018-09-26 | 2018-12-07 | 国网山东省电力公司潍坊供电公司 | A kind of open type pin |
| CN211820303U (en) * | 2020-03-20 | 2020-10-30 | 山东鼎益粉末冶金有限公司 | Adjusting bolt for textile machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112303093B (en) | 2022-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112303093B (en) | Cotter bolt and coupling assembling | |
| CN110676779B (en) | Wall bushing | |
| CN204527535U (en) | A kind of external storage body peculiar to vessel and sealing thereof and releasing mechanism | |
| CN113883155A (en) | Railway wagon hook-head type wedge key anti-loosening device and railway wagon | |
| CN210069186U (en) | Oxygen barrel spare quick change connecting device for steelmaking | |
| CN216640735U (en) | Pin shaft connecting assembly for oil cylinder of excavator and excavator | |
| CN212361115U (en) | Pipeline connecting structure | |
| CN215950009U (en) | Improved stopper oil cylinder | |
| CN218266582U (en) | Multi-sealing material ejection cylinder of screw press | |
| CN108386342A (en) | One kind being based on industrial robot compressor packing auxiliary device | |
| CN217842436U (en) | Movable joint clamping fork seat of universal joint | |
| CN213575448U (en) | Thrust pad oil inlet mechanism and speed reducer | |
| CN211315089U (en) | Fluororubber sealing gasket and low-voltage sleeve sealing structure of large transformer of nuclear power station | |
| CN114607248A (en) | Manhole access door | |
| CN211319733U (en) | Underwater bolt hole sealing protection device | |
| CN214741494U (en) | Protection device of cylinder split, cylinder and steam turbine | |
| CN211573418U (en) | Quick connecting device for integral well head | |
| CN213684842U (en) | Pipe piece bolt sealing connection structure | |
| CN217145630U (en) | Locking mechanism | |
| CN218094702U (en) | Straight pipe type PP (polypropylene) through plate connector | |
| CN218109873U (en) | Flexible jacking and threading mechanism of power shaft | |
| CN213451119U (en) | T-shaped welding type flange structure for hydraulic cylinder | |
| CN216407730U (en) | Coal pulverizer pull rod seal structure | |
| CN208221023U (en) | One kind being based on industrial robot compressor packing auxiliary device | |
| CN215406264U (en) | Novel mechanical tooth holder |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |