CN110332205B - Stable form check bolt - Google Patents
Stable form check bolt Download PDFInfo
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- CN110332205B CN110332205B CN201910657926.0A CN201910657926A CN110332205B CN 110332205 B CN110332205 B CN 110332205B CN 201910657926 A CN201910657926 A CN 201910657926A CN 110332205 B CN110332205 B CN 110332205B
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- 239000011148 porous material Substances 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 68
- 230000007246 mechanism Effects 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000012634 fragment Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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- 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
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- 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)
- Gasket Seals (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention provides a stable anti-loose bolt, and belongs to the field of mechanical fasteners. It has solved the current poor problem of locking effect of bolt. This stable form check bolt, including bolt head and shank of bolt, the bolt head is the button head form, be equipped with the pressure hole in bolt head and the shank of bolt, still including wearing the depression bar in the pressure hole, still including adjusting the cap, adjust the cap include with the fixed regulating plate in depression bar top and with the regulating plate outer along fixed adjusting collar, adjust the ways and overlap on the bolt head, the depression bar bottom mounting has the briquetting, still including the expansion gasket of cover on the depression bar, the pressure hole pore wall is equipped with the spacing groove, the depression bar wall is equipped with the stopper that the slip is located the spacing groove, spacing groove middle part and the distance of pressure hole top are less than spacing groove both ends and pressure hole top distance, spacing groove front end and pressure hole top distance are greater than spacing groove rear end and pressure hole top distance, and spacing groove middle part to both ends smooth transition, be equipped with the elasticity canceling release mechanical system between depression. This bolt locking effect is better.
Description
Technical Field
The invention belongs to the technical field of mechanical fasteners and relates to a stable anti-loosening bolt.
Background
The vibration of mechanical equipment can cause the bolt to drop, thereby influencing the normal work of the equipment and seriously influencing the safety and the stability of the equipment. In order to improve the anti-loosening performance of the bolt, a gasket is added between the bolt and a connected piece, meanwhile, the bolt is screwed in high strength, the purpose is to improve the friction force between the external thread and the internal thread, but under high-strength vibration, the external thread and the internal thread are loosened gradually, the surface of the connected piece is deformed slightly easily due to the high-strength screwed bolt, meanwhile, the deformation degree of each part of the surface of the connected piece is different due to different screwing strengths of the bolts, and the shaking of the connected piece is accelerated under the vibration matching, so that the loosening of the bolt is accelerated.
The prior patent of the invention with the application number of 201710183959.7 and the name of 'an active intrusive bolt connection anti-loosening structure and a forming process thereof' forms a clamping structure by arranging an elastic anti-loosening ring between a bolt polished rod and a connected piece, thereby achieving the loosening effect. But its threaded hole structure that needs to change by the connecting piece is all not suitable for most occasions, and its installation back is directly locked and can't be dismantled simultaneously, also is not fit for the occasion that needs to dismantle the maintenance and uses, and its installation also is very troublesome.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a stable anti-loosening bolt which can ensure that the bolt screwing strength is the same, has better anti-loosening effect and higher universality and is very convenient to use.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a stable form check bolt, includes that bolt head and top fix the external screw thread shank of bolt on the bolt head, its characterized in that: the bolt head is round-head-shaped, the bolt head and the bolt rod are internally coaxially provided with rod-shaped pressure holes, the bolt head and the bolt rod are also internally provided with a rod-shaped pressure rod which is movably matched and arranged in the pressure holes in a penetrating way, the bolt head and the bolt rod also comprises an adjusting cap, the adjusting cap comprises an adjusting plate fixed at the top end of the pressure rod and a sleeve-shaped adjusting sleeve fixed at the outer edge of the top end inner wall and the adjusting plate, the inner wall of the adjusting sleeve is in a round sleeve shape and is sleeved on the bolt head in a movable matching way, the outer wall of the adjusting sleeve is in a regular hexagon sleeve-shaped structure, the bottom end of the pressure rod is fixed with a pressure block and also comprises a rubber expansion gasket which is sleeved on the pressure rod and pressed between the pressure block and the end surface of the bottom end of the bolt rod, the periphery of the expansion gasket is in a round shape coaxial with the pressure rod, the hole wall, spacing groove front end and pressure hole top distance are greater than spacing groove rear end and pressure hole top distance, and spacing groove middle part to both ends smooth transition, depression bar and shank of bolt between be equipped with elasticity canceling release mechanical system, and canceling release mechanical system drives the depression bar, make the stopper be located spacing groove front end or rear end to make expansion gasket periphery diameter be less than or be greater than the external screw thread external diameter on the shank of bolt, and can clockwise rotation adjust the cap, and it is rotatory towards the direction of screwing clockwise to drive the shank of bolt, and drive the stopper and remove to the rear end from the spacing groove front end, also can anticlockwise rotation adjust the cap, and it is rotatory towards the direction of unscrewing anticlockwise to drive the shank of bolt, and drive the stopper and remove to the front end from the spacing groove rear end.
The bolt can be screwed and fixed with the connected piece by only rotating the adjusting cap clockwise, the anti-loosening effect is realized, and the bolt can be unscrewed and separated from the connected piece by only rotating the adjusting cap anticlockwise, so that only normal screwing and unscrewing operation is needed, and the use is very convenient; the clockwise rotation adjusting cap drives the bolt rod to rotate clockwise towards the screwing direction, when the bolt rod is screwed with the connected piece, the friction force between the internal thread and the external thread is larger than the resistance force received by the limiting block, then the clockwise rotation adjusting cap is continuously rotated, the limiting block moves from the front end to the rear end of the limiting groove, the periphery of the expansion gasket is propped against the internal thread of the connected piece, then the clockwise rotation adjusting cap cannot be continuously rotated, the resistance force received by the limiting block is determined by the combined action of the inclination angle of the front half section of the limiting groove and the elastic force of the reset mechanism, so that the same bolt joint strength is ensured after the bolts are screwed, the deformation degrees of all parts connected by the bolt on the surface of the connected piece are the same, the anti-loosening effect is better, and the periphery of the expansion gasket can further extrude the internal thread of the connected piece in the process, the rotation of the pressure lever caused by vibration can be avoided, and the screwing degree of the bolt rod and the connected piece can be changed by changing the inclination angle of the front half section of the limiting groove and the elasticity of the reset mechanism according to the requirements of various occasions; and the bolt does not need to change the structure of the internal thread hole of the connected piece, and the universality is higher.
In foretell locking bolt of stable form, the expansion pad piece include two ring shape metal preforming of cover on the depression bar, still include the top and the bottom connects the sheet rubber in two relative one sides of preforming respectively, and the sheet rubber both ends are connected on the position that the preforming is close to the periphery, and the bending convex structure that forms the cross-section in the middle part of the sheet rubber is the U-shaped.
Therefore, the structure is simple and the manufacture is convenient.
In the stable anti-loosening bolt, the pressing sleeves movably sleeved on the pressing rods are respectively fixed on the inner peripheries of the pressing sheets, the pressing sleeves are fixed on one sides of the two pressing sheets opposite to each other, and when the two pressing sleeves are abutted, the outer diameter of the expansion gasket is larger than the outer diameter of the external thread on the bolt rod.
The expansion gasket is stably sleeved on the pressure rod through the pressure sleeve, so that the expansion or contraction degree of each part of the periphery of the expansion gasket is the same.
In the above-mentioned stable form check bolt, canceling release mechanical system for the cover on two pressure sleeves, and both ends respectively with the reset spring that two preforming offseted, or canceling release mechanical system is the shell fragment that is located two preforming respectively, and the shell fragment is the integrative cutting of preforming and towards opposite direction bending type, and the shell fragment on two preforming supports respectively on another relative preforming one side.
Therefore, the specific structure of the reset mechanism can be selected according to actual conditions.
In a stable form locking bolt of the aforesaid, depression bar and briquetting structure as an organic whole, still include the top and the coaxial fixed shell form adapter sleeve in regulating plate bottom surface, the adapter sleeve outer wall be with hole pressing hole pore wall complex circle shell form structure, and hole pressing top pore wall cooperation cover is on the adapter sleeve outer wall, the spacing groove be located the hole pressing hole pore wall that the adapter sleeve outer wall pasted, the coaxial spread groove that is equipped with of depression bar top rod wall, adapter sleeve inner wall and spread groove cell wall are the regular polygon shell form structure of mutually supporting, and the adapter sleeve cooperation cover is on the spread groove, is equipped with a plurality of keyway along the radial setting of depression bar on the spread groove, and the cooperation of keyway embedded has the pin rod, the keyway in still be equipped with the compression spring that both ends offset with pin rod rear end and keyway tank bottom respectively, the crossing of adapter sleeve bottom end face and inner wall be annular inclined plane form spigot surface, the adapter sleeve on still be equipped with the pinhole, and the outer end of the pin rod enters the pin hole through the guide surface, the pressing rod is fixed with the connecting sleeve, and the compression spring pushes the pin rod to enable the outer end of the pin rod to form a limiting block which is positioned on the limiting groove in a sliding mode.
Therefore, the bolt is reasonable in structure and very convenient to assemble, and can be assembled and completed only by sequentially sleeving all parts, and threaded connection does not exist in the assembling process of the bolt, so that the bolt is prevented from being loosened and damaged.
In a foretell stable form check bolt, the shell fragment along the radial cutting of preforming, and a plurality of shell fragments along preforming circumference equipartition, shell fragment tip on the preforming sets up towards the interior slope of preforming, the shell fragment tip on another preforming sets up towards the slope of preforming periphery, and the shell fragment on two preforming misplaces interval distribution in preforming circumference.
Therefore, the stability of the expansion gasket can be further improved.
In the above stable anti-loosening bolt, the rod wall at the bottom end of the pressing rod is of a regular polygon rod-shaped structure, and the inner wall of the pressing sleeve is of a regular polygon sleeve-shaped structure which is sleeved on the rod wall at the bottom end of the pressing rod in a matching manner.
Therefore, the rubber sheet is prevented from being torn or the elastic sheet is prevented from being dislocated due to the relative rotation of the two pressing plates.
In the stable anti-loosening bolt, the connecting sleeve, the adjusting plate and the adjusting sleeve are of an integrated structure.
Compared with the prior art, the invention has the following advantages:
1. the bolt can be screwed and fixed with the connected piece by only rotating the adjusting cap clockwise, the anti-loosening effect is realized, and the bolt can be unscrewed and separated from the connected piece by only rotating the adjusting cap anticlockwise, so that only normal screwing and unscrewing operation is needed, and the use is very convenient;
2. the clockwise rotation adjusting cap drives the bolt rod to rotate clockwise towards the screwing direction, when the bolt rod is screwed with the connected piece, the friction force between the internal thread and the external thread is larger than the resistance force received by the limiting block, then the clockwise rotation adjusting cap is continuously rotated, the limiting block moves from the front end to the rear end of the limiting groove, the periphery of the expansion gasket is propped against the internal thread of the connected piece, then the clockwise rotation adjusting cap cannot be continuously rotated, the resistance force received by the limiting block is determined by the combined action of the inclination angle of the front half section of the limiting groove and the elastic force of the reset mechanism, so that the same bolt joint strength is ensured after the bolts are screwed, the deformation degrees of all parts connected by the bolt on the surface of the connected piece are the same, the anti-loosening effect is better, and the periphery of the expansion gasket can further extrude the internal thread of the connected piece in the process, the rotation of the pressure lever caused by vibration can be avoided, and the screwing degree of the bolt rod and the connected piece can be changed by changing the inclination angle of the front half section of the limiting groove and the elasticity of the reset mechanism according to the requirements of various occasions;
3. and the bolt does not need to change the structure of the internal thread hole of the connected piece, and the universality is higher.
Drawings
Fig. 1 is a sectional view of the bolt in a tightened state.
Fig. 2 and 3 are partially enlarged views of fig. 1, respectively.
Fig. 4 is a schematic view of the engagement between the stopper groove and the stopper in the state of fig. 1.
Fig. 5 is a sectional view showing the bolt in a unscrewed state.
Fig. 6 is a partially enlarged view of fig. 5.
Fig. 7 is a schematic view of the engagement between the stopper groove and the stopper in the state of fig. 5.
Fig. 8 and 9 are schematic views of two tablets, respectively.
In the figure, the position of the upper end of the main shaft,
1. a bolt head; 11. a bolt shank; 12. pressing the hole; 13. a limiting groove;
2. a pressure lever; 21. briquetting; 22. a limiting block; 23. connecting grooves; 24. a pin slot; 25. a pin rod; 26. a compression spring;
3. an adjusting cap; 31. an adjusting plate; 32. an adjusting sleeve; 33. connecting sleeves; 34. a pin hole;
4. an expansion gasket; 41. tabletting; 42. a rubber sheet; 43. pressing the sleeve; 44. an elastic sheet.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-9, the stable anti-loosening bolt of the present invention comprises a bolt head 1, an external threaded bolt rod 11 with a top end fixed on the bolt head 1, the bolt head 1 being round, rod-shaped press holes 12 coaxially arranged in the bolt head 1 and the bolt rod 11, a round rod-shaped press rod 2 movably fitted in the press holes 12, and an adjusting cap 3, wherein the adjusting cap 3 comprises an adjusting plate 31 fixed on the top end of the press rod 2, and a sleeve-shaped adjusting sleeve 32 with a top end inner wall fixed on the outer edge of the adjusting plate 31, the inner wall of the adjusting sleeve 32 being round and movably fitted on the bolt head 1, the outer wall of the adjusting sleeve 32 being a regular hexagon sleeve-shaped structure, a press block 21 fixed on the bottom end of the press rod 2, and a rubber expansion gasket 4 fitted on the press rod 2 and pressed between the press block 21 and the bottom end face of the bolt rod 11, and the periphery of the expansion gasket 4 being round coaxial with, the hole wall of the pressure hole 12 is provided with a strip-shaped limiting groove 13, the rod wall of the pressure rod 2 is provided with a limiting block 22 which is positioned in the limiting groove 13 in a sliding way, the distance between the middle part of the limiting groove 13 and the top end of the pressure hole 12 is less than the distance between the two ends of the limiting groove 13 and the top end of the pressure hole 12, the distance between the front end of the limiting groove 13 and the top end of the pressure hole 12 is greater than the distance between the rear end of the limiting groove 13 and the top end of the pressure hole 12, the middle part of the limiting groove 13 is in smooth transition to the two ends, an elastic reset mechanism is arranged between the pressure rod 2 and the bolt rod 11, the reset mechanism drives the pressure rod 2 to be positioned at the front end or the rear end of the limiting groove 13, the diameter of the periphery of the expansion gasket 4 is smaller than or larger than the external diameter of the external thread on the bolt rod 11, the adjusting cap 3 can be rotated clockwise, the limiting block 11, and drives the stopper 22 to move from the rear end to the front end of the stopper groove 13.
Further, the expansion gasket 4 comprises two annular metal pressing sheets 41 sleeved on the pressing rod 2, and further comprises a rubber sheet 42 connected to one side of the two pressing sheets 41 opposite to each other at the top end and the bottom end respectively, two ends of the rubber sheet 42 are connected to the position, close to the periphery, of the pressing sheet 41, and the middle of the rubber sheet 42 is bent to form an outer convex structure with a U-shaped cross section. The inner peripheries of the pressing sheets 41 are respectively fixed with a pressing sleeve 43 movably sleeved on the pressing rod 2, the pressing sleeves 43 are fixed on the opposite sides of the two pressing sheets 41, and when the two pressing sleeves 43 are abutted, the outer peripheral diameter of the expansion gasket 4 is larger than the outer diameter of the external thread on the bolt rod 11. The reset mechanism is a reset spring which is sleeved on the two pressing sleeves 43 and two ends of the reset spring respectively abut against the two pressing sheets 41, or the reset mechanism is a spring sheet 44 which is respectively positioned on the two pressing sheets 41, the spring sheet 44 is formed by integrally cutting the pressing sheets 41 and bending towards the opposite direction, and the spring sheets 44 on the two pressing sheets 41 respectively abut against one side of the other pressing sheet 41 which is opposite to the other pressing sheet 41. The pressure lever 2 and the pressure block 21 are integrated, the pressure lever comprises a sleeve-shaped connecting sleeve 33 with the top end coaxially fixed with the bottom surface of the adjusting plate 31, the outer wall of the connecting sleeve 33 is a round sleeve-shaped structure matched with the hole wall of the pressure hole 12, the hole wall of the top end of the pressure hole 12 is matched and sleeved on the outer wall of the connecting sleeve 33, the limiting groove 13 is positioned on the hole wall of the pressure hole 12 attached to the outer wall of the connecting sleeve 33, the lever wall of the top end of the pressure lever 2 is coaxially provided with a connecting groove 23, the inner wall of the connecting sleeve 33 and the groove wall of the connecting groove 23 are of a regular polygon sleeve-shaped structure matched with each other, the connecting sleeve 33 is matched and sleeved on the connecting groove 23, the connecting groove 23 is provided with a plurality of pin grooves 24 arranged along the radial direction of the pressure lever 2, the pin levers 25 are embedded in the pin grooves 24 in a matching manner, the compression springs 26 with two ends respectively, and the outer end of the pin rod 25 enters the pin hole 34 through the guide surface, the pressure lever 2 is fixed with the connecting sleeve 33, and the compression spring 26 pushes the pin rod 25, so that the outer end of the pin rod 25 forms the limiting block 22 which is positioned on the limiting groove 13 in a sliding manner. The elastic sheets 44 are radially cut along the pressing sheet 41, and a plurality of elastic sheets 44 are uniformly distributed along the circumferential direction of the pressing sheet 41, the end of the elastic sheet 44 on one pressing sheet 41 is obliquely arranged towards the inner circumference of the pressing sheet 41, the end of the elastic sheet 44 on the other pressing sheet 41 is obliquely arranged towards the outer circumference of the pressing sheet 41, and the elastic sheets 44 on the two pressing sheets 41 are circumferentially staggered and distributed at intervals in the pressing sheet 41. The wall of the bottom end of the pressure lever 2 is a regular polygon rod-shaped structure, and the inner wall of the pressure sleeve 43 is a regular polygon sleeve-shaped structure which is sleeved on the wall of the bottom end of the pressure lever 2 in a matching way. The connecting sleeve 33, the adjusting plate 31 and the adjusting sleeve 32 are of an integral structure.
The bolt can screw and fix the bolt rod 11 and the connected piece by only rotating the adjusting cap 3 clockwise, and realize the anti-loose effect, and can unscrew and separate the bolt rod 11 and the connected piece by only rotating the adjusting cap 3 anticlockwise, so that only normal screwing and unscrewing operation is needed, and the use is very convenient; the adjusting cap 3 is rotated clockwise to drive the bolt rod 11 to rotate clockwise towards the screwing direction, when the bolt rod 11 is screwed with the connected piece, the friction force between the internal thread and the external thread is larger than the resistance force received by the limiting block 22, then the adjusting cap 3 is rotated clockwise continuously, the limiting block 22 moves from the front end to the rear end of the limiting groove 13, the periphery of the expansion gasket 4 is propped against the internal thread of the connected piece, then the adjusting cap 3 can not be rotated clockwise continuously, the combined action of the inclination angle of the front half section of the limiting groove 13 and the elastic force of the reset mechanism determines the resistance force received by the limiting block 22, thereby ensuring the same screwing strength after each bolt is screwed, ensuring the same deformation degree of the surface of the connected piece through the bolt, therefore, the anti-loosening effect is better, and in the process that the limiting block 22 moves from the rear end to the middle part of the limiting groove 13, the periphery of the expansion, therefore, the rotation of the pressure lever 2 caused by vibration can be avoided, and the screwing degree of the bolt rod 11 and the connected piece can be changed by changing the inclination angle of the front half section of the limiting groove 13 and the elastic force of the reset mechanism according to the requirements of various occasions, in short, the inclination angle of the front half section of the limiting groove 13 determines the screwing degree of the bolt rod 11, and the position of the rear end of the limiting groove 13 determines the compression degree of the expansion gasket 4; and the bolt does not need to change the structure of the internal thread hole of the connected piece, and the universality is higher.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms of the bolt head 1, the bolt shank 11, the press hole 12, the limit groove 13, the press rod 2, the press block 21, the limit block 22, the connecting groove 23, the pin groove 24, the pin shank 25, the compression spring 26, the adjusting cap 3, the adjusting plate 31, the adjusting sleeve 32, the connecting sleeve 33, the pin hole 34, the expansion washer 4, the pressing piece 41, the rubber piece 42, the press sleeve 43, the elastic piece 44, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. The utility model provides a stable form check bolt, includes that bolt head (1) and top are fixed external screw thread shank of bolt (11) on bolt head (1), its characterized in that: the bolt head (1) is round-head-shaped, the bolt head (1) and the bolt rod (11) are internally and coaxially provided with a rod-shaped pressure hole (12), and further comprise a rod-shaped pressure rod (2) which is movably matched and arranged in the pressure hole (12), and further comprise an adjusting cap (3), the adjusting cap (3) comprises an adjusting plate (31) fixed at the top end of the pressure rod (2), a sleeve-shaped adjusting sleeve (32) fixed at the outer edge of the inner wall of the top end and the adjusting plate (31), the inner wall of the adjusting sleeve (32) is in a round sleeve shape, and is movably matched and sleeved on the bolt head (1), the outer wall of the adjusting sleeve (32) is in a regular hexagon sleeve-shaped structure, a pressing block (21) is fixed at the bottom end of the pressure rod (2) and further comprises a rubber expansion gasket (4) sleeved on the pressure rod (2) and pressed between the pressing block (21) and the end face of the bottom end of the bolt rod (11), and the periphery of the expansion, the wall of the pressure hole (12) is provided with a strip-shaped limiting groove (13), the wall of the pressure rod (2) is provided with a limiting block (22) which is positioned in the limiting groove (13) in a sliding manner, the distance between the middle part of the limiting groove (13) and the top end of the pressure hole (12) is smaller than the distance between the two ends of the limiting groove (13) and the top end of the pressure hole (12), the distance between the front end of the limiting groove (13) and the top end of the pressure hole (12) is larger than the distance between the rear end of the limiting groove (13) and the top end of the pressure hole (12), the middle part of the limiting groove (13) is in smooth transition from the middle part to the two ends, an elastic reset mechanism is arranged between the pressure rod (2) and the bolt rod (11), the reset mechanism drives the pressure rod (2), the limiting block (22) is positioned at the front end or the rear end of the limiting groove (13), the peripheral diameter of the expansion gasket (4) is smaller than or larger than, and the limiting block (22) is driven to move from the front end to the rear end of the limiting groove (13), the adjusting cap (3) can also rotate anticlockwise, the bolt rod (11) is driven to rotate anticlockwise towards the unscrewing direction, and the limiting block (22) is driven to move from the rear end to the front end of the limiting groove (13).
2. A stabilized lock bolt according to claim 1, wherein: the expansion gasket (4) comprises two circular ring-shaped metal pressing sheets (41) sleeved on the pressing rod (2), and further comprises rubber sheets (42) of which the top ends and the bottom ends are respectively connected to the opposite sides of the two pressing sheets (41), the two ends of each rubber sheet (42) are connected to the positions, close to the periphery, of the pressing sheets (41), and the middle parts of the rubber sheets (42) are bent to form convex structures of which the cross sections are U-shaped.
3. A stabilized lock bolt according to claim 2, wherein: the inner peripheries of the pressing sheets (41) are respectively fixed with a pressing sleeve (43) movably sleeved on the pressing rod (2), the pressing sleeves (43) are fixed on one side opposite to the two pressing sheets (41), and when the two pressing sleeves (43) are abutted, the outer peripheral diameter of the expansion gasket (4) is larger than the outer diameter of an external thread on the bolt rod (11).
4. A stabilized lock bolt according to claim 3, wherein: the reset mechanism is a reset spring which is sleeved on the two pressing sleeves (43) and two ends of the reset spring respectively abut against the two pressing sheets (41), or the reset mechanism is an elastic sheet (44) which is respectively positioned on the two pressing sheets (41), the elastic sheet (44) is formed by integrally cutting the pressing sheets (41) and bending towards the opposite direction, and the elastic sheets (44) on the two pressing sheets (41) respectively abut against one side of the other opposite pressing sheet (41).
5. A stabilized lock bolt according to claim 4, wherein: depression bar (2) and briquetting (21) structure as an organic whole, still include top and regulating plate (31) bottom surface coaxial fixation's shell-shaped adapter sleeve (33), adapter sleeve (33) outer wall be with pressure hole (12) pore wall complex round shell-shaped structure, and press hole (12) top pore wall cooperation cover on adapter sleeve (33) outer wall, spacing groove (13) be located on pressure hole (12) pore wall that adapter sleeve (33) outer wall pasted, depression bar (2) top rod wall coaxial be equipped with spread groove (23), adapter sleeve (33) inner wall and spread groove (23) cell wall are the regular polygon shell-shaped structure of mutually supporting, and adapter sleeve (33) cooperation cover is on spread groove (23), is equipped with a plurality of keyway (24) that radially set up along depression bar (2) on spread groove (23), and is inlayed in keyway (24) cooperation and is sold rod (25), keyway (24) in still be equipped with compression spring (26) that both ends offset with sell rod (25) rear end and sell groove (24) cell bottom respectively at both ends ) The utility model discloses a spacing groove (13) for the pressure bar, adapter sleeve (33) bottom end face and the crossing department of inner wall be annular inclined plane form spigot surface, adapter sleeve (33) on still be equipped with pinhole (34), just pin rod (25) outer end pass through in spigot surface gets into pinhole (34), and depression bar (2) are fixed with adapter sleeve (33), compression spring (26) promote pin rod (25), make pin rod (25) outer end form stopper (22) that slide and be located on spacing groove (13).
6. A stabilized lock bolt according to claim 5, wherein: the spring plate (44) is radially cut along the pressing plate (41), the spring plates (44) are uniformly distributed along the circumferential direction of the pressing plate (41), the end part of the spring plate (44) on one pressing plate (41) is obliquely arranged towards the inner circumference of the pressing plate (41), the end part of the spring plate (44) on the other pressing plate (41) is obliquely arranged towards the outer circumference of the pressing plate (41), and the spring plates (44) on the two pressing plates (41) are circumferentially staggered and distributed at intervals in the pressing plate (41).
7. A stabilized lock bolt according to claim 6, wherein: the wall of the bottom end of the pressure lever (2) is of a regular polygon rod-shaped structure, and the inner wall of the pressure sleeve (43) is of a regular polygon sleeve-shaped structure which is sleeved on the wall of the bottom end of the pressure lever (2) in a matching manner.
8. A stabilized lock bolt according to claim 7, wherein: the connecting sleeve (33), the adjusting plate (31) and the adjusting sleeve (32) are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657926.0A CN110332205B (en) | 2019-07-20 | 2019-07-20 | Stable form check bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657926.0A CN110332205B (en) | 2019-07-20 | 2019-07-20 | Stable form check bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110332205A CN110332205A (en) | 2019-10-15 |
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| CN201910657926.0A Active CN110332205B (en) | 2019-07-20 | 2019-07-20 | Stable form check bolt |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111157094A (en) * | 2020-01-17 | 2020-05-15 | 徐州昊诺自动化科技有限公司 | Digital weighing sensor |
| CN111503123A (en) * | 2020-04-17 | 2020-08-07 | 温州智权工业设计有限公司 | Fast-assembly anti-drop nut structure and assembling method thereof |
| CN111503122A (en) * | 2020-04-17 | 2020-08-07 | 温州智权工业设计有限公司 | Universal nut and assembling method thereof |
| CN111536135B (en) * | 2020-05-05 | 2021-10-12 | 浦江县恒川信息科技有限公司 | Anti-slip nut and assembling method thereof |
| CN112081809A (en) * | 2020-09-04 | 2020-12-15 | 浙江润锦汽车科技有限公司 | Transmission separation shifting fork supporting bolt with POE (polyolefin elastomer) ball head part and preparation method thereof |
| CN113047868B (en) * | 2021-04-01 | 2023-08-22 | 广西安盾交通科技有限公司 | Firmly-installed channel |
| CN113062907B (en) * | 2021-04-12 | 2023-01-03 | 浙江联通家具配件有限公司 | Expansion fastening bolt for cork material and mounting method thereof |
| CN115163633B (en) * | 2022-07-19 | 2023-09-19 | 靖江市飞天紧固件制造有限公司 | Locking bolt structure that moves |
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Effective date of registration: 20201110 Address after: 322200 Zaoyuan Village, Zhengzhai Town, Pujiang County, Jinhua City, Zhejiang Province, No. 12 Applicant after: PUJIANG HENGCHUAN INFORMATION TECHNOLOGY Co.,Ltd. Address before: 317604 No. 1 Xinggang West Road, Damaiyu Street, Yuhuan City, Taizhou City, Zhejiang Province Applicant before: Zhang Lili |
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Effective date of registration: 20221103 Address after: 222000 No. 6, Jinxing South Road, Xingzhuang village, Haitou Town, Ganyu District, Lianyungang City, Jiangsu Province Patentee after: Jiangsu Yongyi Fasteners Co.,Ltd. Address before: 322200 Zao Yuan village, Zhengzhai Town, Pujiang County, Jinhua, Zhejiang, 12 Patentee before: PUJIANG HENGCHUAN INFORMATION TECHNOLOGY Co.,Ltd. |