CN115163633A - Anti-loosening bolt structure - Google Patents
Anti-loosening bolt structure Download PDFInfo
- Publication number
- CN115163633A CN115163633A CN202210845688.8A CN202210845688A CN115163633A CN 115163633 A CN115163633 A CN 115163633A CN 202210845688 A CN202210845688 A CN 202210845688A CN 115163633 A CN115163633 A CN 115163633A
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- Prior art keywords
- stud
- rod
- column
- ring
- lock nut
- 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.)
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- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000010030 laminating Methods 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000670 limiting effect Effects 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a looseness-prevention bolt structure which comprises a bottom plate, a gasket sleeve, a pressing plate, an inserting rod and an upper stud, wherein the top of the bottom plate is provided with a middle column, two half studs symmetrically arranged at the front end and the rear end of the middle column and two expansion pieces symmetrically arranged at two sides of the middle column; the gasket sleeve is sleeved on the outer side of the middle column and the bottom end of the gasket sleeve; a sinking groove is formed in the top end of the central column, the pressing plate is horizontally arranged in the sinking groove and is in up-and-down sliding connection with the central column, and a top column is vertically arranged in the middle of the pressing plate; the insert rod is provided with a pressing ring, the bottom end of the insert rod is inserted into a space formed by the half stud, the expansion sheet and the middle column, the bottom end of the insert rod positioned below the pressing ring is provided with a notch, two clamps which are distributed in an X shape and hinged with the insert rod through a fixed pin are arranged in the notch, and a tension spring is arranged between the two clamps positioned above the fixed pin; the upper stud is arranged on the inserted rod above the compression ring in a rotating mode. The invention can effectively prevent the fastened piece from loosening and ensure the reliability of the bolt connection structure.
Description
Technical Field
The invention relates to a looseness-prevention bolt structure, and belongs to the technical field of fasteners.
Background
The bolt connection is the most common mechanical connection mode of a mechanical structure, but for the bolt connection structure bearing dynamic load or impact load, the bolt connection structure is loosened under the influence of the dynamic load or the impact load in the service process, and once the bolt connection structure is loosened, the bolt connection structure can cause the connected piece to be loosened or cracked, so that the connected structure cannot normally work. In order to improve the reliability of the bolt connection structure, various anti-loosening measures are usually adopted to achieve locking of the bolt connection structure, for example, washers and rubber pads are added in the bolt structure, but the anti-loosening manner cannot play an effective anti-loosening role in the bolt structure.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the anti-loosening bolt structure which can effectively prevent a fastened piece from loosening and ensure the reliability of the bolt connection structure.
The technical scheme adopted by the invention is as follows:
a locking bolt structure comprising:
the top of the bottom plate is provided with a central column, two half studs symmetrically arranged at the front end and the rear end of the central column and two expansion pieces symmetrically arranged at two sides of the central column;
the gasket sleeve is sleeved on the outer side of the central column, and the bottom end of the gasket sleeve is attached to the top surface of the bottom plate;
the top end of the center pillar is provided with a sink groove which is communicated from left to right, the pressing plate is horizontally arranged in the sink groove and is connected with the center pillar in a vertical sliding manner, two ends of the pressing plate are attached to the top surface of the gasket sleeve, and the middle part of the pressing plate is vertically provided with a top pillar;
the bottom end of the inserted bar is inserted into a space formed by the half stud, the expansion sheet and the middle column, the compression ring is abutted against the top surface of the half stud, a left-right through notch is formed in the bottom end of the inserted bar positioned below the compression ring, two clamps which are distributed in an X shape and hinged with the inserted bar through fixing pins are arranged in the notches, and a tension spring is arranged between the two clamps positioned above the fixing pins;
go up the double-screw bolt, go up the double-screw bolt and locate on the inserted bar that is located the clamping ring top and go up the bottom of double-screw bolt and the upper surface laminating of clamping ring soon.
As a preferable aspect of the present invention, the locking bolt structure further includes:
the first lock nut is rotatably arranged on the inserted rod above the upper stud;
and the second lock nut is rotatably arranged on the inserted rod positioned above the first lock nut.
Preferably, the direction of rotation of the upper stud is opposite to the direction of rotation of the first lock nut, and the direction of rotation of the first lock nut is opposite to the direction of rotation of the first lock nut.
As a preferable aspect of the present invention, the locking bolt structure further includes:
and the rubber ring is sleeved on the inserted rod between the compression ring and the two half studs.
As one preferable mode of the present invention, the top of the upper stud is provided with a plurality of corresponding slots, the top end of the insertion rod is provided with a plurality of sinking channels corresponding to the slots, the sinking channels are internally provided with the clamping strips, and two ends of the clamping strips are inserted into the two corresponding slots.
In a preferred embodiment of the present invention, the height of the half stud is higher than the height of the expansion sheet, and the height of the center pillar is lower than the height of the expansion sheet.
Preferably, a top plate with a regular hexagon-shaped horizontal section is arranged around the top end of the upper stud.
Preferably, the clip has a diamond structure, and the length of the clip above the fixing pin is greater than the length of the clip below the fixing pin.
Preferably, the top ends of the center pillar and the top pillar have arc-shaped structures that are engaged with each other.
Preferably, a waterproof cap is screwed on the top of the inserted rod, the waterproof cap is positioned above the second lock nut, and the screwing direction of the waterproof cap is opposite to that of the second lock nut.
The invention has the beneficial effects that:
the expansion pieces on the corresponding sides are propped open towards the two sides by the clamping buckles and are tightly attached to the inner walls of the threaded holes on the fastening pieces, so that the lower part structure can be effectively prevented from being loosened; the inserted bar and the upper stud are limited into a whole through the clamping strip, the upper structure can be prevented from loosening, then loosening by a fastener can be effectively prevented, and the reliability of the bolt connection structure is guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view at the base plate.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in fig. 1-2: the invention relates to an anti-loosening bolt structure which comprises a bottom plate 1, a gasket sleeve 2, a pressing plate 3, an inserted bar 4 and an upper stud 5, wherein the horizontal section of the bottom plate 1 is of a regular hexagon structure, the top of the bottom plate 1 is provided with a central column 6, two half studs 7 symmetrically arranged at the front end and the rear end of the central column 6 and two expansion pieces 8 symmetrically arranged at two sides of the central column 6, the height of each half stud 7 is higher than that of each expansion piece 8, the height of the central column 6 is lower than that of each expansion piece 8, and adaptive outer thread rings are formed on the outer sides of the two half studs 7.
The gasket sleeve 2 is sleeved outside the center post 6, and the bottom end of the gasket sleeve 2 is attached to the top surface of the bottom plate 1; set up on the top of center pillar 6 and control heavy groove 9 that link up, clamp plate 3 level setting in heavy groove 9 and with center pillar 6 upper and lower sliding connection, the both ends of clamp plate 3 and the laminating of the top surface of snare cover 2 are provided with fore-set 10 at the middle part of clamp plate 3 is vertical, the top of center pillar 6 and the top of fore-set 10 are the cambered surface structure of mutual coincidence.
The plug-in lever 4 is provided with a pressing ring 11, the bottom end of the plug-in lever 4 is inserted into the half stud 7, an expansion sheet 8 and a middle column 6 form a space, the pressing ring 11 is abutted against the top surface of the half stud 7, a left-right through notch 12 is formed in the bottom end of the plug-in lever 4 below the pressing ring 11, two clamps 13 which are distributed in an X shape and hinged to the plug-in lever 4 through fixing pins are arranged in the notch 12, namely the two clamps 13 can rotate relative to the fixing pins, the clamps 13 are of a diamond structure, the length of the clamps 13 above the fixing pins is larger than that of the clamps 13 below the fixing pins, the axle center of the middle column 6 and the axle center of the top column 10 are arranged corresponding to the sandwich of the two clamps 13, and a tension spring 14 is arranged between the two clamps 13 above the fixing pins.
The upper stud 5 is screwed on the inserted bar 4 positioned above the compression ring 11, the bottom end of the upper stud 5 is attached to the upper surface of the compression ring 11, and a top plate 15 with a regular hexagon-shaped horizontal section is arranged around the top end of the upper stud 5; an external thread ring matched with the threaded hole of the fastener is formed on the outer wall of the upper stud 5.
In the process that the bottom end of the inserted link 4 is inserted downwards, the top post 10 is abutted with the two clamps 13 to open the two clamps 13 outwards, and the inserted link 4 continues to move downwards until the clamps 13 are abutted with the middle post 6 and the top end of the clamps 13 opens the expansion sheet 8 on the corresponding side to both sides to be tightly attached to the inner wall of the threaded hole on the fastener.
In practical application, two ends of the two clamping buckles 13 form a cambered surface structure, and the cambered surface structure cannot be clamped with the expansion sheet 8 when the insert rod 4 is withdrawn.
In order to prevent the upper stud 5 from loosening, a plurality of corresponding clamping grooves 16 are formed in the top of the upper stud 5, a plurality of sinking channels 17 corresponding to the clamping grooves 16 are formed in the top end of the inserting rod 4, clamping strips 18 are arranged in the sinking channels 17, two ends of each clamping strip 18 are inserted into the corresponding two clamping grooves 16, the space between the two half studs 7 is limited, the clamping buckles 13 have certain thickness, the inserting rod 4 and the upper stud 5 are limited into a whole through the limiting effect of the clamping strips 18, and then the upper stud 5 can be prevented from loosening.
The anti-loosening bolt structure further comprises a first lock nut 19, a second lock nut 20 and a waterproof cap 21, wherein the first lock nut 19 is arranged on the inserted bar 4 above the upper stud 5 in a rotating mode; the second lock nut 20 is screwed on the inserted rod 4 positioned above the first lock nut 19; the waterproof cap 21 is screwed on the inserted rod 4 positioned above the second lock nut 20; in order to improve the anti-loosening effect, the rotating direction of the upper stud 5 is opposite to the rotating direction of the first lock nut 19, the rotating direction of the first lock nut 19 is opposite to the rotating direction of the first lock nut, the rotating direction of the waterproof cap 21 is opposite to the rotating direction of the second lock nut 20, and therefore the inserting rod 4 is provided with a plurality of sections of external threads with different rotating directions.
For further improvement locking effect of moving, locking bolt structure that moves still includes rubber circle 22, rubber circle 22 cover is established on lieing in clamping ring 11 and two inserted bar 4 between the half-stud 7, the bottom surface of rubber circle 22 and the top surface laminating of half-stud 7, the top surface and the 11 bottom surface laminating of clamping ring of rubber circle 22, and the radius and the fastener screw hole radius adaptation of rubber circle 22, rubber circle 22 will produce deformation to the outside after the compression then with the fastener on the screw hole closely laminate.
The following description is made of the use of the anti-loosening bolt structure:
the bottom plate 1 is firstly supported, the half studs 7 and the expansion pieces 8 are inserted into threaded holes in the fasteners, then the bottom plate 1 is screwed, and the outer sides of the two half studs 7 are provided with adaptive external thread rings which can be screwed into the threaded holes until the bottom plate 1 is attached to the bottom surface of the fasteners.
Then the rubber ring 22 is sleeved on the inserted link 4 positioned below the press ring 11 from the lower part, and the rubber ring 22 cannot fall off due to the action of the clamp 13; then the inserted bar 4 is inserted into the threaded hole from the upper part, the clamping buckles 13 are aligned with the sunken grooves 9, then the inserted bar 4 moves downwards, the top column 10 is abutted with the two clamping buckles 13, and the two clamping buckles 13 are opened outwards.
The upper stud 5 is sleeved on the inserted rod 4 from the upper side, then the inserted rod is screwed into the threaded hole of the fastener downwards, the upper stud 5 is abutted against the pressing ring 11 and is continuously pressed downwards, the top column 10 is pressed downwards, the clamping buckle 13 is gradually further opened outwards until the clamping buckle 13 is abutted against the top column 10, and the top end of the clamping buckle 13 props the expansion sheet 8 on the corresponding side to the two sides to be propped open to be tightly attached to the inner wall of the threaded hole of the fastener.
After the top pillar 10 moves downwards, the cushion ring sleeve 2 is compressed, the cushion ring sleeve 2 deforms and expands outwards and acts on the expansion sheet 8, so that the expansion sheet 8 can be better attached to the inner wall of the threaded hole in the fastener, and the stability is improved; meanwhile, the inserted bar 4 is moved downwards to be screwed down by the stud 5, the rubber ring 22 is compressed through the pressing ring 11, and the rubber ring 22 can also deform and expand outwards to be attached to the inner wall of the threaded hole of the fastener.
After the upper stud 5 is screwed in, the clamping groove 16 on the upper stud 5 corresponds to the sinking channel 17 on the inserting rod 4, then the clamping strip 18 is placed in the sinking channel 17 from the upper part, and after the clamping strip 18 falls down, two ends of the clamping strip 18 are inserted into the two corresponding clamping grooves 16.
And then the first locking nut 19, the second locking nut 20 and the waterproof cap 21 are screwed to the top end of the inserted rod 4 in sequence.
The anti-loosening bolt structure provided by the invention can effectively prevent the bolt from loosening by a fastening piece, and ensures the reliability of the bolt connection structure.
The above description is only a preferred embodiment of the present patent, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the inventive concept, and these modifications and decorations should also be regarded as the protection scope of the present patent.
Claims (10)
1. A locking bolt structure that moves, characterized by, includes:
the top of the bottom plate is provided with a central column, two half studs symmetrically arranged at the front end and the rear end of the central column and two expansion pieces symmetrically arranged at two sides of the central column;
the gasket sleeve is sleeved on the outer side of the central column, and the bottom end of the gasket sleeve is attached to the top surface of the bottom plate;
the top end of the center pillar is provided with a sink groove which is communicated from left to right, the pressing plate is horizontally arranged in the sink groove and is connected with the center pillar in a vertical sliding manner, two ends of the pressing plate are attached to the top surface of the gasket sleeve, and the middle part of the pressing plate is vertically provided with a top pillar;
the bottom end of the inserted rod is inserted into a space formed by the half stud, the expansion sheet and the middle column, and the compression ring is abutted against the top surface of the half stud; a left-right through notch is formed in the bottom end of the insert rod below the compression ring, two clamps which are distributed in an X shape and hinged with the insert rod through a fixing pin are arranged in the notch, and a tension spring is arranged between the two clamps above the fixing pin;
go up the double-screw bolt, go up the double-screw bolt and locate on the inserted bar that is located the clamping ring top and go up the bottom of double-screw bolt and the upper surface laminating of clamping ring soon.
2. The locking bolt structure of claim 1, further comprising:
the first lock nut is arranged on the inserted rod above the upper stud in a rotating mode;
and the second lock nut is rotatably arranged on the inserted rod positioned above the first lock nut.
3. The structure of claim 2, wherein the direction of rotation of the upper stud is opposite to the direction of rotation of the first locking nut, and the direction of rotation of the first locking nut is opposite to the direction of rotation of the first locking nut.
4. The locking bolt structure of claim 1, further comprising:
and the rubber ring is sleeved on the inserted rod between the pressure ring and the two half studs.
5. The structure of claim 1, wherein a plurality of corresponding slots are formed at the top of the upper stud, a plurality of sinking channels corresponding to the slots are formed at the top end of the insertion rod, a plurality of clamping strips are arranged in the sinking channels, and two ends of each clamping strip are inserted into the corresponding two slots.
6. The structure of claim 1, wherein the height of the half-stud is higher than that of the expansion piece, and the height of the center pillar is lower than that of the expansion piece.
7. The structure of claim 1, wherein a top plate with a regular hexagonal horizontal cross section is arranged around the top end of the upper stud.
8. The structure of claim 1, wherein the fastener has a diamond shape, and the length of the fastener above the fixing pin is greater than the length of the fastener below the fixing pin.
9. The structure of claim 1, wherein the top ends of the central pillar and the top pillar are formed in a mutually engaged arc structure.
10. The structure of claim 3, wherein a waterproof cap is screwed on the top of the inserted rod, the waterproof cap is located above the second lock nut, and the screwing direction of the waterproof cap is opposite to that of the second lock nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210845688.8A CN115163633B (en) | 2022-07-19 | 2022-07-19 | Locking bolt structure that moves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210845688.8A CN115163633B (en) | 2022-07-19 | 2022-07-19 | Locking bolt structure that moves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115163633A true CN115163633A (en) | 2022-10-11 |
| CN115163633B CN115163633B (en) | 2023-09-19 |
Family
ID=83495418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210845688.8A Active CN115163633B (en) | 2022-07-19 | 2022-07-19 | Locking bolt structure that moves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115163633B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685282A (en) * | 2024-02-04 | 2024-03-12 | 成都鑫晨航空科技有限公司 | Aviation anti-loosening bolt based on memory alloy and fastening method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180128305A1 (en) * | 2016-11-04 | 2018-05-10 | Ford Global Technologies, Llc | Recessed Spring Washer Flow Drill Screw |
| CN109114091A (en) * | 2018-11-02 | 2019-01-01 | 成都瑞智宏达机械有限公司 | elastic fastening bolt |
| CN110332205A (en) * | 2019-07-20 | 2019-10-15 | 张丽丽 | A kind of stable type check bolt |
| CN111500929A (en) * | 2020-04-30 | 2020-08-07 | 台州睿通车业有限公司 | Anti-loosening bolt for automobile and machining method thereof |
| CN111692190A (en) * | 2020-05-15 | 2020-09-22 | 江苏永昊高强度螺栓有限公司 | Check bolt structure |
| CN112392839A (en) * | 2019-08-15 | 2021-02-23 | 高邮市汽车标准件厂 | Quick-release bolt assembly |
| CN113446299A (en) * | 2021-07-18 | 2021-09-28 | 王立志 | High-strength anti-skid bolt |
| CN114754057A (en) * | 2022-04-14 | 2022-07-15 | 江苏古戈尔精密五金科技有限公司 | Anti-loosening screw fastener |
-
2022
- 2022-07-19 CN CN202210845688.8A patent/CN115163633B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180128305A1 (en) * | 2016-11-04 | 2018-05-10 | Ford Global Technologies, Llc | Recessed Spring Washer Flow Drill Screw |
| CN109114091A (en) * | 2018-11-02 | 2019-01-01 | 成都瑞智宏达机械有限公司 | elastic fastening bolt |
| CN110332205A (en) * | 2019-07-20 | 2019-10-15 | 张丽丽 | A kind of stable type check bolt |
| CN112392839A (en) * | 2019-08-15 | 2021-02-23 | 高邮市汽车标准件厂 | Quick-release bolt assembly |
| CN111500929A (en) * | 2020-04-30 | 2020-08-07 | 台州睿通车业有限公司 | Anti-loosening bolt for automobile and machining method thereof |
| CN111692190A (en) * | 2020-05-15 | 2020-09-22 | 江苏永昊高强度螺栓有限公司 | Check bolt structure |
| CN113446299A (en) * | 2021-07-18 | 2021-09-28 | 王立志 | High-strength anti-skid bolt |
| CN114754057A (en) * | 2022-04-14 | 2022-07-15 | 江苏古戈尔精密五金科技有限公司 | Anti-loosening screw fastener |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117685282A (en) * | 2024-02-04 | 2024-03-12 | 成都鑫晨航空科技有限公司 | Aviation anti-loosening bolt based on memory alloy and fastening method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115163633B (en) | 2023-09-19 |
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