CN110645253B - Nut and bolt assembly capable of self-locking - Google Patents
Nut and bolt assembly capable of self-locking Download PDFInfo
- Publication number
- CN110645253B CN110645253B CN201910933198.1A CN201910933198A CN110645253B CN 110645253 B CN110645253 B CN 110645253B CN 201910933198 A CN201910933198 A CN 201910933198A CN 110645253 B CN110645253 B CN 110645253B
- Authority
- CN
- China
- Prior art keywords
- nut
- locking
- locking piece
- piece
- bolt
- 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.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
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
- F16B39/02—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
-
- 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
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
Abstract
The invention discloses a nut and bolt assembly capable of self-locking, which comprises a bolt and a nut, wherein the outer wall of the nut is circular; the outer side wall of the bolt is correspondingly provided with two locking grooves, and correspondingly, the nut is internally provided with two slotted holes; a locking piece is arranged in the slotted hole and can be clamped into the locking groove so as to complete locking work; the locking piece is connected with a strip-shaped connecting piece, the slotted hole is connected with a probing hole, the tail part of the connecting piece extends out of the probing hole and is wound on the outer wall of the nut, and the tail ends of the two connecting pieces are connected together to form a node; the back of the locking piece is provided with a spring which acts on the locking piece to enable the locking piece to move towards the outside of the slotted hole, and the connecting piece pulls the locking piece to enable the locking piece not to displace. The nut and bolt assembly can automatically lock after being screwed in place, and can prevent the nut and the bolt from rotating relatively, so that a self-locking effect can be generated, the nut and bolt assembly has a function of preventing false rotation, and accidents can be avoided.
Description
Technical Field
The invention relates to a nut and bolt assembly capable of self-locking.
Background
Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.
The nut is a nut, is a part which is screwed together with a bolt or a screw rod to play a role in fastening, and is a part which is used in a large number in mechanical production and manufacturing. According to different materials, the materials are classified into carbon steel, stainless steel, non-ferrous metals (such as copper) and the like.
The general nut can be loosened by itself due to vibration and other reasons in the using process, and in order to prevent the phenomenon, the self-locking nut is invented. The self-locking nut has the functions of looseness prevention and vibration resistance and is used for special and important occasions.
The self-locking nut used in a large range at present is a nut self-locking by friction force. Thus, when the torque applied by the outside is sufficiently large, it can be screwed.
Although the existing self-locking nut has certain anti-loose and anti-vibration capabilities, the existing self-locking nut still fails under the condition that the external interference is strong enough. In addition, the existing self-locking nut does not have certain anti-misoperation capacity. When the engineering personnel overhaul or other conditions, the device can be opened by mistake, so that accidents happen.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the nut and bolt assembly capable of self-locking, which can automatically lock after being screwed in place and can avoid relative rotation of the nut and the bolt, so that the self-locking effect can be generated, the nut and bolt assembly also has the function of preventing false rotation, and the occurrence of accidents can be avoided.
In order to solve the technical problem, the invention is solved by the following technical scheme: a nut and bolt assembly capable of self-locking comprises a bolt and a nut, wherein the outer wall of the nut is circular; the outer side wall of the bolt is correspondingly provided with two locking grooves, and correspondingly, the nut is internally provided with two slotted holes; a locking piece is arranged in the groove hole and can be clamped into the locking groove to complete locking work; the locking piece is connected with a strip-shaped connecting piece, the slotted hole is connected with a probing hole, the tail part of the connecting piece extends out of the probing hole and is wound on the outer wall of the nut, and the tail ends of the two connecting pieces are connected together to form a node; the back of the locking piece is provided with a spring, the spring acts on the locking piece to enable the locking piece to move towards the outside of the slotted hole, and the connecting piece pulls the locking piece to enable the locking piece not to displace.
Preferably, an annular groove is formed in the locking piece, and the spring is arranged in the annular groove.
Preferably, the depth of the locking groove is half of the thickness of the locking member.
Preferably, a cavity is arranged inside the locking piece, a head with a size corresponding to that of the front end of the connecting piece is arranged at the front end of the locking piece, the size of the head is larger than the peripheral size of the connecting piece, and the head is arranged in the cavity so that the connecting piece and the locking piece are connected in a fastening mode.
Preferably, the connecting piece is a plastic rod or a rubber rod.
Preferably, the tail ends of the connecting pieces are mutually bonded after being heated and melted, and the junction is formed after being cooled.
Preferably, the end of the locking piece is provided with an arc-shaped surface, and the arc-shaped surface can reduce friction force when the nut is screwed on the bolt and enable the locking piece to smoothly enter the locking groove.
Preferably, the outer edge of the probe hole is provided with a round chamfer, and the round chamfer enables the connecting piece not to be cut by a crack when passing through the round chamfer.
The invention provides a nut and bolt assembly capable of self-locking, which can automatically lock after being screwed in place and can prevent relative rotation of a nut and a bolt, so that a self-locking effect can be generated, and the nut and bolt assembly also has a function of preventing false rotation, thereby avoiding accidents.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the present invention as it is being threaded.
Fig. 3 is a schematic view of the tightened structure of the present invention.
Fig. 4 is a schematic diagram of the structure at a in fig. 1.
Fig. 5 is a schematic diagram of the structure at B in fig. 2.
Fig. 6 is a schematic diagram of the structure at C in fig. 3.
Fig. 7 is a schematic structural diagram of the locking member of the present invention.
Fig. 8 is a schematic view of another configuration of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments described in the present disclosure, all other embodiments obtained by a person skilled in the art without creative efforts are within the scope of the present disclosure.
As shown in fig. 1 to 7, is a structure of the present invention. The invention provides a nut and bolt assembly capable of self-locking, which comprises a bolt 1 and a nut 2, wherein the outer wall of the nut 2 is circular; the outer side wall of the bolt 1 is correspondingly provided with two locking grooves 11, and correspondingly, two slotted holes 21 are formed in the nut 2; a locking piece 3 is arranged in the slotted hole 21, and the locking piece 3 can be clamped into the locking groove 11 to complete locking work; the locking piece 3 is connected with a strip-shaped connecting piece 4, the slotted hole 21 is connected with a detecting hole 22, the tail part of the connecting piece 4 extends out of the detecting hole 22 and is wound on the outer wall of the nut 2, and the tail ends of the two connecting pieces 4 are connected together to form a node 40; the back of the locking piece 3 is provided with a spring 33, the spring 33 acts on the locking piece 3 to enable the locking piece 3 to move towards the outside of the slotted hole 21, and the connecting piece 4 pulls the locking piece 3 to enable the locking piece 3 not to displace.
An annular groove 32 is formed in the locking piece 3, and the spring 33 is arranged in the annular groove 32.
The depth of the locking groove 11 is half of the thickness of the locking member 3.
The locking piece 3 is internally provided with a cavity, the front end of the connecting piece 4 is provided with an end 41 with a corresponding size, the size of the end 41 is larger than the peripheral size of the connecting piece 4, and the end 41 is arranged in the cavity so as to enable the connecting piece 4 and the locking piece 3 to be tightly connected.
The connecting piece 4 is a plastic rod or a rubber rod.
The tail ends of the connecting pieces 4 are mutually bonded after being heated and melted, and the junction is formed after being cooled.
The end of the locking member 3 is provided with an arc surface 31, and the arc surface 31 can reduce friction force when the nut 2 is screwed on the bolt 1, and make the locking member 3 smoothly enter the locking groove 11.
The outer edge of the probe hole 22 is provided with a round chamfer 23, and the round chamfer 23 prevents the connecting piece 4 from being cut by a crack when passing through the round chamfer.
The width of the locking groove 11 of the bolt 1 of the present invention is not less than the width of the locking member 3, so that the locking member 3 can be smoothly inserted into the locking groove 11. Further, the lock groove 11 is not necessarily limited. However, the size of the slot 21 needs to be set and the lock 3 is placed at this position, so the size of the slot 21 is larger than that of the lock 3, the size difference between the two needs to be determined according to the wall thickness of the nut, and the requirement is met as long as the requirement is met, and the proportional relation of the carved plate is not required.
The nut of the present invention has a circular shape, so that a general wrench cannot be screwed, but the coupling member 4 and the node 40 are provided outside the nut. Thus, the operator can insert the rigid rod 51 into the space between the connector 4 and the outer wall of the nut and turn it. As shown in fig. 2, the nut is driven to rotate by the connection between the two connecting pieces 4. Due to the design, the nut can be rotated under the condition that an operator forgets to carry the wrench. Pliers may also be used to grasp the knot 40 and thereby drive the nut.
After being rotated into position, the external excess connecting element 4 is removed, so that the two locking elements 3 are separated from one another. The nut and the bolt are installed in place, so that the locking grooves 11 and the slotted holes 21 at the two positions are opposite, and after the external part of the connecting piece 4 is subtracted, the locking piece 3 can smoothly retreat into the locking grooves 11 under the action of the spring, and the locking work is completed.
In addition, the connecting piece 4 of the invention can be deformed under the condition of heating, if the nut at the position is determined not to be screwed out, the nut at the position can be heated, so that the connecting piece 4 is melted and deformed, enters the groove hole 21 of the locking groove 11 and is hardened after cooling. This prevents the locking element 3 from being displaced, i.e. the nut cannot be screwed out smoothly.
Furthermore, as shown in fig. 8, the present invention may be arranged such that 4 locking members 3 are provided in the nut and then four connecting members 4 are connected in two groups. In this way, the nut can be driven to rotate by two rods, thereby providing more balanced torque to enable the nut to be mounted on the bolt. And, set up 4 locking pieces 3, can provide the locking strength of sufficient strength, improve the locking effect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a nut and bolt subassembly that can auto-lock which characterized in that: the bolt comprises a bolt (1) and a nut (2), wherein the outer wall of the nut (2) is circular; the outer side wall of the bolt (1) is correspondingly provided with two locking grooves (11), and correspondingly, two slotted holes (21) are formed in the nut (2); a locking piece (3) is arranged in the slotted hole (21), and the locking piece (3) can be clamped into the locking groove (11) to complete locking work; the locking piece (3) is connected with a strip-shaped connecting piece (4), the slotted hole (21) is connected with a probing hole (22), the tail part of the connecting piece (4) extends out of the probing hole (22) and is wound on the outer wall of the nut (2), and the tail ends of the two connecting pieces (4) are connected together to form a node (40); the back of the locking piece (3) is provided with a spring (33), the spring (33) acts on the locking piece (3) to enable the locking piece to move towards the outside of the slotted hole (21), and the connecting piece (4) pulls the locking piece (3) to enable the locking piece (3) not to displace.
2. The nut and bolt assembly of claim 1, wherein: locking piece (3) inside is provided with annular (32), be provided with in annular (32) spring (33).
3. The nut and bolt assembly of claim 1, wherein: the depth of the locking groove (11) is half of the thickness of the locking piece (3).
4. The nut and bolt assembly of claim 3, wherein: the locking piece (3) is internally provided with a cavity, the front end of the connecting piece (4) is provided with an end head (41) with the corresponding size, the size of the end head (41) is larger than the peripheral size of the connecting piece (4), and the end head (41) is arranged in the cavity so that the connecting piece (4) and the locking piece (3) are connected in a fastening mode.
5. The nut and bolt assembly of claim 4, wherein: the connecting piece (4) is a plastic rod or a rubber rod.
6. The nut and bolt assembly of claim 5, wherein: the tail ends of the connecting pieces (4) are mutually bonded after being heated and melted, and the joints are formed after being cooled.
7. The nut and bolt assembly of claim 1, wherein: the end part of the locking piece (3) is provided with an arc-shaped surface (31), the arc-shaped surface (31) can reduce friction force when the nut (2) is screwed on the bolt (1), and the locking piece (3) can smoothly enter the locking groove (11).
8. The nut and bolt assembly of claim 1, wherein: the outer edge of the probe hole (22) is provided with a round chamfer, and the round chamfer enables the connecting piece not to be cut by a crack when passing through the round chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910933198.1A CN110645253B (en) | 2019-09-29 | 2019-09-29 | Nut and bolt assembly capable of self-locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910933198.1A CN110645253B (en) | 2019-09-29 | 2019-09-29 | Nut and bolt assembly capable of self-locking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110645253A CN110645253A (en) | 2020-01-03 |
| CN110645253B true CN110645253B (en) | 2021-04-13 |
Family
ID=69011943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910933198.1A Active CN110645253B (en) | 2019-09-29 | 2019-09-29 | Nut and bolt assembly capable of self-locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110645253B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351940A (en) * | 2020-10-13 | 2022-04-15 | 高智勇 | Composite device with internal transparent body |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11315819A (en) * | 1998-05-01 | 1999-11-16 | Sanki Eng Co Ltd | Looseness preventing means of nut fastened to bolt |
| CN204572698U (en) * | 2014-04-29 | 2015-08-19 | 美铝公司 | Fastening piece |
| CN207647946U (en) * | 2017-08-07 | 2018-07-24 | 新昌县精特网络科技有限公司 | A kind of nut for protecting bolt to prevent bolt falling |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006144894A (en) * | 2004-11-19 | 2006-06-08 | Kyodo Engineering Kk | Permanently fixing bolt/nut |
| CN201354792Y (en) * | 2009-03-03 | 2009-12-02 | 张昌华 | Bolt connector tightly locked by suite lock-tongue nut |
| US8894335B2 (en) * | 2012-12-05 | 2014-11-25 | United Technologies Corporation | Slider locknut |
| CN203809475U (en) * | 2014-04-07 | 2014-09-03 | 松阳县永新机械制造有限公司 | Nut and screw assembly |
| CN204140619U (en) * | 2014-10-08 | 2015-02-04 | 浙江明泰标准件有限公司 | A kind of locknut |
| CN206017399U (en) * | 2016-08-23 | 2017-03-15 | 无锡市东赫金属制品有限公司 | A kind of bolt nut component for coordinating fastening |
| CN207145418U (en) * | 2017-08-09 | 2018-03-27 | 孙传深 | A kind of loose-proof screw |
| CN108799307B (en) * | 2018-07-04 | 2020-07-21 | 瑞安市新华机械标准件厂 | Conveniently-disassembled expansion bolt |
-
2019
- 2019-09-29 CN CN201910933198.1A patent/CN110645253B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11315819A (en) * | 1998-05-01 | 1999-11-16 | Sanki Eng Co Ltd | Looseness preventing means of nut fastened to bolt |
| CN204572698U (en) * | 2014-04-29 | 2015-08-19 | 美铝公司 | Fastening piece |
| CN207647946U (en) * | 2017-08-07 | 2018-07-24 | 新昌县精特网络科技有限公司 | A kind of nut for protecting bolt to prevent bolt falling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110645253A (en) | 2020-01-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105156446B (en) | For can crush or fragile material in be arranged threaded fasteners device and method | |
| CN110645253B (en) | Nut and bolt assembly capable of self-locking | |
| US2421181A (en) | Stud bolt | |
| CN111946708A (en) | Fastening bolt capable of being quickly disassembled and assembled | |
| CN209812221U (en) | Screw extracting tool structure | |
| CN212665917U (en) | Special tool for dismounting nut of outer barrel of landing gear support of airplane | |
| CN110821941A (en) | Triangular tooth flange bolt assembly of lock takes one's place | |
| CN215928085U (en) | Brazed joint check bolt | |
| CN108980161B (en) | Connecting piece convenient to install | |
| CN109611435B (en) | Nut | |
| CN113323956A (en) | Bolt and nut assembly capable of preventing loosening | |
| CN216077923U (en) | Locking structure of anti-loosening bolt | |
| CN216131222U (en) | Self-locking connection structure of bolt | |
| CN110985513B (en) | Check bolt and check bolt assembly | |
| CN213381286U (en) | Special tool for single-side connecting bolt | |
| CN214367148U (en) | Self-locking bolt fastening device | |
| CN213870682U (en) | Special-shaped fastener with good fixing effect | |
| CN210769790U (en) | Self-locking nut | |
| CN218000116U (en) | Threaded connecting rod | |
| CN213144960U (en) | Quick connecting piece | |
| CN212371488U (en) | Protective ring welding and correcting easy-to-detach tool | |
| CN214617414U (en) | Repeatedly usable's check bolt subassembly | |
| CN218427814U (en) | Tool for nut axial force test | |
| CN210318103U (en) | Circular slotted nut that theftproof performance is good | |
| CN216265764U (en) | Main shaft pull rod group assembling tool |
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 |