CN113623302B - Multi-section damping air spring fastener - Google Patents
Multi-section damping air spring fastener Download PDFInfo
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- CN113623302B CN113623302B CN202110743495.7A CN202110743495A CN113623302B CN 113623302 B CN113623302 B CN 113623302B CN 202110743495 A CN202110743495 A CN 202110743495A CN 113623302 B CN113623302 B CN 113623302B
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- cover plate
- screw rod
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- 238000013016 damping Methods 0.000 title claims abstract description 8
- 239000010687 lubricating oil Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims 2
- 230000035939 shock Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 description 20
- 238000012423 maintenance Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000000737 periodic effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
- F16B23/003—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool star-shaped or multi-lobular, e.g. Torx-type, twelve-point star
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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
- F16B33/00—Features common to bolt and nut
- F16B33/004—Sealing; Insulation
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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
- F16B33/00—Features common to bolt and nut
- F16B33/008—Corrosion preventing means
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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
- F16B39/02—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
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/54—Arrangements for attachment
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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
- F16N—LUBRICATING
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
- F16N11/10—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups by pressure of another fluid
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
- F16F2222/126—Fluid damping using gases
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to the technical field of fasteners, in particular to a multi-section damping air spring fastener which comprises a screw, a gasket, a nut, a notch, a thread sleeve, a cover plate, a first spring, a stop block, a second groove and a second spring.
Description
Technical Field
The invention relates to the technical field of fasteners, in particular to a multi-section damping air spring fastener.
Background
A spring which is filled with compressed air in a telescopic closed container and utilizes the elastic action of the air is called an air spring;
the fastener is a mechanical part which is used for fastening connection and has wide application; the fastening piece of the air spring refers to a bolt part in particular, the air spring is usually connected with a device through a flange plate and fastened through a bolt, and the length of a screw rod is designed to be just enough to be sleeved with a threaded sleeve after the screw rod is fastened in order to prevent the phenomenon that the air spring is scratched when the screw rod is too long in the using process because the air spring is made of rubber products.
When air spring was applied to the vehicle foundation and uses, because the car can produce a large amount of tail gas when driving, contain a large amount of particulate matters in these tail gases, these particulate matters extremely easily adhere to the fastener surface after mixing with the petrol of not burning completely, lead to the notch of fastener to block up, influence air spring's dismantlement and overhaul, the fastener can be oxidized and rusted after long-term contact air simultaneously, lead to the screw rod to rust to die to be difficult to dismantle, and do not have the production at the car in-process and rock, it is loose because of rocking to lead to the fastener after the installation easily, need periodic overhaul for guaranteeing safety, air spring installation space is narrow and small in addition, the inconvenient screw rod of taking disect insertion is in the mounting hole of air spring.
To this end, a multi-segmented cushioning air spring fastener is provided.
Disclosure of Invention
The invention aims to provide a multi-section damping air spring fastener, which can close a notch after being installed, prevent the notch from being blocked and influencing later-stage disassembly and maintenance, is convenient to be connected with a screwing inner hexagonal wrench, is convenient to install in a narrow space, is convenient to add lubricating oil and effectively reduces the phenomenon of screw rod rusting, and is clamped again after being in threaded connection with a threaded sleeve, so that the stability of the fastener for fixing an air spring is improved, and the problem in the background art is solved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multistage absorbing air spring fastener, includes screw rod, gasket, nut, notch, swivel nut, apron, first spring, dog, second recess and second spring, gasket fixed mounting is in the upper end of screw rod, nut fixed mounting is in the upper end of gasket, the upper end of nut is seted up to the notch, the swivel nut screw thread cup joints in the outer disc lower extreme of screw rod, apron movable mounting is in the inside upper end of notch, first spring fixed mounting is in the intermediate position between the inside lower extreme of notch and the lower extreme surface of apron, the internal surface of notch is seted up to the second recess, dog movable mounting is in the inside of second recess, second spring fixed mounting is located between dog and the second recess in the inside of second recess, the upper end surface of dog is the arc surface, the position that the upper end surface edge of apron corresponds the dog is seted up jaggedly.
When the air spring is applied to an automobile base, a large amount of tail gas can be generated when an automobile runs, the tail gas contains a large amount of particles, the particles are mixed with incompletely combusted gasoline and then are extremely easy to attach to the surface of a fastener, so that a notch of the fastener is blocked, the disassembly and maintenance of the air spring are influenced, in addition, the air spring is narrow in installation space, and a screw rod which is inconvenient to take is directly inserted into an installation hole of the air spring;
when the air spring fixing device works, firstly, an inner hexagonal wrench for screwing a fastener is inserted into a notch on a nut, at the moment, a cover plate is extruded and contracted to the inside of the notch by the inner hexagonal wrench, a first spring is compressed and deformed, and meanwhile, the inner hexagonal wrench is extruded to the stop block by utilizing the arc surface of the inner hexagonal wrench after being contacted with the stop block, so that the stop block is contracted to the inside of a second groove, the stop block compresses a second spring, the second spring provides opposite acting force for the stop block, the stop block clamps the inner hexagonal wrench from all directions of the notch, a screw rod and the inner hexagonal wrench are fixed together, as the quality of the fastener is lighter, the stop block generates friction with the inner hexagonal wrench under the action of the elastic force of the second spring, the fastener is prevented from falling off between the self gravity and the inner hexagonal wrench, at the moment, the inner hexagonal wrench can be held to extend the screw rod into a narrow space to install the air spring, penetrate the mounting hole of ring flange on the air spring with the screw rod during installation, then utilize interior hexagonal spanner to twist and move the screw rod and realize threaded connection fixed, and cup joint the end of screw rod with the swivel nut screw thread after screwing up, further strengthen fixedly between screw rod and the ring flange, extract interior hexagonal spanner from the notch after the installation, the apron is not receiving the extrusion of interior hexagonal spanner this moment, under the effect that first spring resets, the apron shifts up inside the notch, thereby it is closed to the notch, prevent that debris from getting into inside the notch and causing the later stage to overhaul the problem that is difficult to dismantle, interior hexagonal spanner extracts the back simultaneously, the dog also stretches out the second recess under the effect that second spring resets, thereby it is spacing to carry out the apron from the upper end of notch to utilize the dog, prevent that the apron from breaking away from the notch.
Preferably, the lower extreme surface edge of gasket is located the outer lane of screw rod and has seted up first recess, the inside fixed mounting of first recess has the gasbag, the upper end surface fixed mounting of gasbag has the air cock, and the upper end of air cock runs through the gasket and is linked together with the notch, the hole has been seted up to the interior disc equidistance of gasbag a plurality of, the air cock is narrow round platform form under the width, and the lower extreme of air cock runs through and extends to the inside of gasbag, the air cock is the same with the gasbag material.
The fastener can be oxidized and rusted after contacting air for a long time, so that the screw is rusted and difficult to disassemble;
during operation, at first will fix the air spring installation through the fastener, utilize hexagon socket spanner to reciprocate in the notch inside after the installation, extrude the apron repeatedly, make the apron be piston motion, thereby it is inside to inject the air into the gasbag through the air cock, and then make the gasbag inflation, narrow round platform form about because the air cock is wide, and the lower extreme of air cock runs through and extends to the inside of gasbag, make the air extruded very easily to the gasbag, can extrude the air cock of deepening inside the gasbag after the gasbag inflation, thereby realize sealing, reduce the inside air leakage speed of gasbag, later inflation gasbag passes through the hole with inside lubricating oil under the effect of atmospheric pressure and discharges, lubricating oil flows along the screw rod surface, realize the lubricated maintenance to the screw rod surface, reduce the rusty risk of screw rod, until the inside air exhaustion of gasbag, stop the discharge of lubricating oil, and because the hole is seted up under the gasbag inflation state, therefore the gasbag can produce the shrink when the gasbag the hole and cause the closure as far as possible to hole, prevent inside lubricating oil leakage under the gasbag contraction state, press the apron again when needing to overhaul, discharge lubricating oil from the inside of gasbag again, it is convenient to dismantle the screw rod.
Preferably, the holes are opened in an inflated state of the airbag, and the inside of the airbag is filled with lubricating oil.
Because the hole is opened under the gasbag inflation state, consequently can realize the closure to the hole because of self elastic action after the gasbag shrink, and then make the gasbag shrink after not extruding lubricating oil.
Preferably, the vent has been seted up to the upper end surface edge of apron, and the internal fixed surface of vent installs and shelters from the piece a plurality of, the length that shelters from the piece is greater than the radius of vent, and shelters from the piece and make up into the circular cone of directional downwards, shelter from the piece and be the rubber material, and it is unfixed between the adjacent piece that shelters from.
Because the vent internally mounted on the apron has a plurality of shielding pieces, and the shielding piece makes up into the circular cone of downward director, shielding piece receives ascending power under the effect of air resistance when the apron moves down, thereby it realizes sealed relatively to the vent to close coniform, and then the leakage of air when reducing the apron and pushing down, improve the inside gas filled speed of gasbag, and when the apron shifts up, under the effect of air resistance, shielding piece receives the decurrent power and expandes, thereby make the vent open, the circulation of air when making the apron rise, take out the air from the gasbag when avoiding the apron to move up.
Preferably, the clamping grooves are formed in the front end and the rear end of the inner surface of the threaded sleeve, the lower ends of the outer surfaces of the front end and the rear end of the screw rod are provided with through holes, a third groove is formed in the lower end of the inner portion of the through hole, a push rod is fixedly mounted at the center of the outer surface of the lower end of the cover plate and penetrates through the lower end of the push rod and extends to the first spring, the screw rod and the inside of the through hole, the push rod and the screw rod can slide up and down, clamping blocks are movably mounted at the front end and the rear end of the inside of the through hole, two clamping blocks are movably mounted opposite to each other, hinges are movably mounted between the traction rods and the clamping blocks, spring shafts are movably mounted between the two traction rods, and the clamping blocks penetrate through the inside of the clamping grooves.
The fastener is not shaken during the running process of the automobile, so that the mounted fastener is easy to loosen due to shaking, and regular maintenance is needed to ensure safety;
when the air spring fastening device works, firstly, the inner hexagonal wrench is inserted into the notch, the cover plate is extruded and contracted to the inside of the notch, the push rod of the push rod moves downwards in the screw rod in the downward moving process of the cover plate, so that the connecting position of the two traction rods is pushed by the push rod, the two traction rods are bent into a V shape under the action of the spring shaft and the hinge, the clamping block is pulled into the through hole along with the bending of the traction rods, the screw rod can be normally screwed into the mounting hole of the air spring, the thread of the threaded sleeve is sleeved with the tail end of the screw rod after screwing, the fastening piece is produced according to the matching of the air spring, after the threaded sleeve is sleeved on the screw rod, the clamping groove in the inner surface of the threaded sleeve is correspondingly attached to the through hole in the screw rod, the inner hexagonal wrench is pulled out at the moment, the cover plate is pushed to move upwards under the resetting action of the first spring, the cover plate pulls the push rod to move upwards to contact with the extrusion of the traction rod, the spring shaft resets at the traction rod, so that the traction rod pushes the traction rod to push the clamping block out of the clamping block to be clamped into the through hole, the clamping groove, the screw rod, the fixation between the screw rod and the clamping groove is realized, and the fixation between the screw rod and the fastening piece is improved in the stability after the fastening piece is installed.
Preferably, the two traction rods can be bent downwards into a V shape through the spring shaft and the hinge, and the traction rods penetrate through the third groove.
The push rod is used for pushing the connection part of the two traction rods, so that the two traction rods are bent into a V shape under the action of the spring shaft and the hinge, the clamping block is pulled into the through hole along with the bending of the traction rods, and the screw can be normally screwed into the mounting hole of the air spring.
Compared with the prior art, the invention has the beneficial effects that:
1. the baffle block clamps the inner hexagon wrench from all directions of the notch, so that the screw and the inner hexagon wrench are fixed together, the inner hexagon wrench can be held at the moment to stretch the screw into a narrow space to install the air spring, the inner hexagon wrench is pulled out from the notch after the installation is finished, the cover plate is not extruded by the inner hexagon wrench, the cover plate moves upwards inside the notch under the reset action of the first spring, so that the notch is closed, the problem that the notch is difficult to disassemble in later maintenance due to the fact that sundries enter the notch to block the notch is solved, and meanwhile, after the inner hexagon wrench is pulled out, the baffle block also stretches out of the second groove under the reset action of the second spring, so that the baffle block is utilized to limit the cover plate from the upper end of the notch, and the cover plate is prevented from being separated from the notch;
2. the expanded air bag discharges the internal lubricating oil through the hole under the action of air pressure, the lubricating oil flows along the surface of the screw rod, the surface of the screw rod is lubricated and maintained, the risk of rusting of the screw rod is reduced, the discharging of the lubricating oil is stopped until the air in the air bag is exhausted, the cover plate is repeatedly pressed again when maintenance is needed, the lubricating oil is discharged from the inside of the air bag to lubricate the screw rod, and the disassembly is convenient;
3. the draw bar pushes the fixture block out of the through hole and clamps the fixture block into the clamping groove, so that the screw and the threaded sleeve are fixed, and the stability of the fastener after installation is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view of the screw and nut combination of the present invention;
FIG. 3 is a schematic view of the internal structure of the nut of the present invention;
FIG. 4 is a schematic view of the cover plate structure of the present invention;
FIG. 5 is a view of the screw of the present invention in combination with a bore;
FIG. 6 is a view of the combination of the screw and the fixture block of the present invention;
FIG. 7 is a schematic view of the structure of the insert of the present invention;
fig. 8 is a schematic view of the structure of the balloon of the present invention.
In the figure: 1. a screw; 2. a gasket; 3. a nut; 4. a notch; 5. a threaded sleeve; 6. a cover plate; 7. a first spring; 8. a stopper; 9. a first groove; 10. an air bag; 11. an air tap; 12. a push rod; 13. a second groove; 14. a second spring; 15. a vent; 16. a shielding sheet; 17. perforating; 18. a third groove; 19. a clamping block; 20. a draw bar; 21. a hinge; 22. a spring shaft; 23. a card slot; 24. and (4) holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, the present invention provides a technical solution:
a multi-section damping air spring fastener is shown in figures 1 to 3 and comprises a screw rod 1, a gasket 2, a screw cap 3, a notch 4, a threaded sleeve 5, a cover plate 6, a first spring 7, a stop block 8, a second groove 13 and a second spring 14, wherein the gasket 2 is fixedly arranged at the upper end of the screw rod 1, the screw cap 3 is fixedly arranged at the upper end of the gasket 2, the notch 4 is formed in the upper end of the screw cap 3, the threaded sleeve 5 is sleeved at the lower end of the outer circular surface of the screw rod 1 in a threaded manner, the cover plate 6 is movably arranged at the upper end of the inner part of the notch 4, the first spring 7 is fixedly arranged at the middle position between the lower end of the inner part of the notch 4 and the outer surface of the lower end of the cover plate 6, the second groove 13 is formed in the inner surface of the notch 4, the stop block 8 is movably arranged in the second groove 13, the second spring 14 is fixedly arranged in the second groove 13 and is positioned between the second groove 8, the outer surface of the upper end of the stop block 8 is an arc surface, and a notch is formed in the position, corresponding to the position of the stop block 8, at the edge of the outer surface of the upper end of the cover plate 6;
when the air spring is applied to an automobile base for use, because an automobile can generate a large amount of tail gas when the automobile runs, the tail gas contains a large amount of particles, the particles are extremely easy to attach to the surface of a fastener after being mixed with incompletely combusted gasoline, so that the notch 4 of the fastener is blocked, the disassembly and the overhaul of the air spring are influenced, in addition, the air spring is narrow in installation space, and the screw rod 1 which is inconvenient to take is directly inserted into an installation hole of the air spring;
when the screw fixing device works, firstly, an inner hexagonal wrench for screwing a fastener is inserted into a notch 4 on a nut 3, at the moment, a cover plate 6 is extruded and contracted to the inside of the notch 4 by the inner hexagonal wrench, a first spring 7 is compressed and deformed, meanwhile, the inner hexagonal wrench is extruded to a stop block 8 by utilizing the arc surface of the inner hexagonal wrench after being contacted with the stop block 8, the stop block 8 is contracted to the inside of a second groove 13, the stop block 8 compresses a second spring 14, the second spring 14 provides opposite acting force for the stop block 8, so that the stop block 8 clamps the inner hexagonal wrench from all directions of the notch 4, a screw 1 and the inner hexagonal wrench are fixed together, and the stop block 8 rubs against the inner hexagonal wrench under the action of the elastic force of the second spring 14 due to light weight of the fastener to prevent the fastener from falling off with the inner hexagonal wrench due to self gravity, at the moment, an inner hexagonal wrench can be held to stretch a screw rod 1 into a narrow space to install an air spring, the screw rod 1 penetrates into an installation hole of an upper flange plate of the air spring during installation, then the screw rod 1 is screwed by the inner hexagonal wrench to realize threaded connection and fixation, a screw sleeve 5 is in threaded sleeve connection with the tail end of the screw rod 1 after screwing, the screw rod 1 and the flange plate are further reinforced and fixed, the inner hexagonal wrench is pulled out of a notch 4 after installation is finished, a cover plate 6 is not extruded by the inner hexagonal wrench at the moment, the cover plate 6 moves upwards in the notch 4 under the reset action of a first spring 7, so that the notch 4 is closed, the problem that later-period maintenance is difficult to disassemble due to the fact that sundries are blocked in the notch 4 is prevented from entering the notch 4 is solved, meanwhile, a stop block 8 also stretches out of a second groove 13 under the reset action of a second spring 14 after the inner hexagonal wrench is pulled out, and the stop block 8 is used for limiting the cover plate 6 from the upper end of the notch 4, preventing the cover plate 6 from coming off the notch 4.
As an embodiment of the present invention, as shown in fig. 2 and 8, a first groove 9 is formed in an outer ring of the screw rod 1 at an edge of an outer surface of a lower end of the gasket 2, an air bag 10 is fixedly installed inside the first groove 9, an air tap 11 is fixedly installed on an outer surface of an upper end of the air bag 10, an upper end of the air tap 11 penetrates through the gasket 2 and is communicated with the notch 4, a plurality of holes 24 are formed in an inner circumferential surface of the air bag 10 at equal intervals, the air tap 11 is in a circular truncated cone shape with a wide upper end and a narrow lower end, a lower end of the air tap 11 penetrates through and extends into the air bag 10, the air tap 11 and the air bag 10 are made of the same material, the holes 24 are formed in an expanded state of the air bag 10, and lubricating oil is filled in the air bag 10;
the fastener can be oxidized and rusted after contacting air for a long time, so that the screw rod 1 is rusted and difficult to disassemble;
when the air spring lubricating device works, firstly, the air spring is installed and fixed through a fastener, after the installation, the air spring is vertically moved inside the notch 4 by using an inner hexagonal wrench, the cover plate 6 is repeatedly extruded, the cover plate 6 is made to be in piston motion, air is injected into the air bag 10 through the air nozzle 11, the air bag 10 is further made to expand, the air nozzle 11 is in a shape of a round table with a wide upper part and a narrow lower part, the lower end of the air nozzle 11 penetrates through and extends into the air bag 10, air is easily extruded into the air bag 10, the air bag 10 can extrude the air nozzle 11 deep into the air bag 10 after being expanded, sealing is achieved, the air leakage speed inside the air bag 10 is reduced, then the expanding air bag 10 discharges the internal lubricating oil through the hole 24 under the action of air pressure, the lubricating oil flows along the surface of the screw rod 1, lubrication maintenance on the surface of the screw rod 1 is achieved, the risk of rusting of the screw rod 1 is reduced, the air inside of the air bag 10 is exhausted till the air inside of the air bag 10 is exhausted, the lubricating oil is stopped, the discharging of the lubricating oil from the hole 24 is stopped, and the lubricating oil discharging of the air bag 10 is convenient for repairing the air bag 10 when the lubricating oil in the air bag 10, and the internal lubricating oil discharging of the screw rod 1 is convenient for repairing, and the lubricating oil discharging of the air bag.
As an embodiment of the present invention, as shown in fig. 4, an air vent 15 is opened at an edge of an outer surface of an upper end of the cover plate 6, a plurality of shielding pieces 16 are fixedly installed on an inner surface of the air vent 15, a length of each shielding piece 16 is greater than a radius of the air vent 15, the shielding pieces 16 are combined into a downward-pointing conical shape, the shielding pieces 16 are made of rubber, and adjacent shielding pieces 16 are not fixed;
during operation, because the vent 15 internally mounted on the apron 6 has a plurality of shielding pieces 16, and shielding piece 16 makes up into the coniform of pointing downwards, shielding piece 16 receives ascending power under the effect of air resistance when apron 6 moves down, thereby close coniform and realize sealed relatively to vent 15, and then reduce the leakage of air when apron 6 pushes down, improve the inside gas filled speed of gasbag 10, and when apron 6 moves up, under the effect of air resistance, shielding piece 16 receives the decurrent power and expandes, thereby make vent 15 open, make circulation of air when apron 6 rises, take out the air from gasbag 10 inside when avoiding apron 6 to move up.
As an embodiment of the present invention, as shown in fig. 2 and 5 to 6, the front end and the rear end of the inner surface of the threaded sleeve 5 are both provided with a clamping groove 23, the lower ends of the outer surfaces of the front end and the rear end of the threaded rod 1 are both provided with a through hole 17, the lower end of the inside of the through hole 17 is provided with a third groove 18, the center of the outer surface of the lower end of the cover plate 6 is fixedly provided with a push rod 12, the lower end of the push rod 12 penetrates through and extends to the inside of the first spring 7, the threaded rod 1 and the through hole 17, the push rod 12 and the threaded rod 1 can slide up and down, the front end and the rear end of the inside of the through hole 17 are both movably provided with clamping blocks 19, opposite surfaces of the two clamping blocks 19 are movably provided with traction rods 20, a hinge 21 is movably provided between the traction rods 20 and the clamping blocks 19, a spring shaft 22 is movably provided between the two traction rods 20, the clamping blocks 19 penetrate through the clamping groove 23, the two traction rods 20 can be bent downwards into a V shape through the spring shaft 22 and the hinge 21, and the traction rods 20 penetrate through the third groove 18;
the fastener is not shaken during the running process of the automobile, so that the mounted fastener is easy to loosen due to shaking, and regular maintenance is needed to ensure safety;
when the air spring type air spring fixing device works, firstly, an inner hexagonal wrench is inserted into the notch 4, at the moment, the cover plate 6 is extruded and contracted to the inside of the notch 4, the push rod 12 moves downwards in the screw rod 1 in the downward moving process of the cover plate 6, so that the connecting part of the two pull rods 20 is pushed by the push rod 12, the two pull rods 20 are bent into a V shape under the action of the spring shaft 22 and the hinge 21, the clamping block 19 is pulled into the through hole 17 along with the bending of the pull rods 20, the screw rod 1 can be normally screwed into the mounting hole of the air spring, the screw sleeve 5 is sleeved with the tail end of the screw rod 1 in a threaded manner after being screwed, as the fixing device is produced in a matched manner according to the air spring, after the screw sleeve 5 is sleeved on the screw rod 1, the clamping groove 23 on the inner surface of the screw sleeve 5 is correspondingly attached to the through hole 17 on the screw rod 1, at the moment, the inner hexagonal wrench is pulled out, the cover plate 6 is pushed to move upwards under the resetting action of the first spring 7, then the push rod 12 pulls the push rod 20 to move upwards, at the push rod 22 to expand the clamping block 17 and realize the fixing of the screw sleeve 1, and the fixing device, so that the stability of the screw rod 5 is improved.
The working principle is as follows:
when the screw fixing device works, firstly, an inner hexagonal wrench for screwing a fastener is inserted into a notch 4 on a nut 3, at the moment, a cover plate 6 is extruded and contracted to the inside of the notch 4 by the inner hexagonal wrench, a first spring 7 is compressed and deformed, meanwhile, the inner hexagonal wrench is extruded to a stop block 8 by utilizing the arc surface of the inner hexagonal wrench after being contacted with the stop block 8, the stop block 8 is contracted to the inside of a second groove 13, the stop block 8 compresses a second spring 14, the second spring 14 provides opposite acting force for the stop block 8, so that the stop block 8 clamps the inner hexagonal wrench from all directions of the notch 4, a screw 1 and the inner hexagonal wrench are fixed together, and the stop block 8 rubs against the inner hexagonal wrench under the action of the elastic force of the second spring 14 due to light weight of the fastener to prevent the fastener from falling off with the inner hexagonal wrench due to self gravity, at the moment, an inner hexagonal wrench can be held to stretch the screw rod 1 into a narrow space to install the air spring, the screw rod 1 penetrates into an installation hole of an upper flange plate of the air spring during installation, then the screw rod 1 is screwed by the inner hexagonal wrench to realize threaded connection and fixation, the screw sleeve 5 is in threaded sleeve connection with the tail end of the screw rod 1 after screwing, the screw rod 1 and the flange plate are further strengthened and fixed, the inner hexagonal wrench is pulled out of the notch 4 after installation is finished, the cover plate 6 is not extruded by the inner hexagonal wrench at the moment, the cover plate 6 moves upwards in the notch 4 under the reset action of the first spring 7, so that the notch 4 is closed, the problem that later maintenance is difficult to disassemble due to the fact that sundries enter the notch 4 to be blocked is avoided, and meanwhile, after the inner hexagonal wrench is pulled out, the stop block 8 also extends out of the second groove 13 under the reset action of the second spring 14, so that the stop block 8 is used for limiting the cover plate 6 from the upper end of the notch 4, the cover plate 6 is prevented from being separated from the notch 4, meanwhile, the rod push rod 12 is pushed to move downwards in the screw rod 1 in the process that the cover plate 6 moves downwards, so that the push rod 12 is utilized to push the connection part of the two traction rods 20, the two traction rods 20 are bent into a V shape under the action of the spring shaft 22 and the hinge 21, the clamping block 19 is pulled into the through hole 17 along with the bending of the traction rods 20, the screw rod 1 can be normally screwed into the mounting hole of the air spring, the threaded sleeve 5 is sleeved with the tail end of the screw rod 1 in a threaded manner after being screwed, the fastening piece is produced according to the air spring in a matching manner, after the threaded sleeve 5 is sleeved on the screw rod 1, the clamping groove 23 on the inner surface of the threaded sleeve 5 is correspondingly attached to the through hole 17 on the screw rod 1, the hexagon socket wrench is pulled out at the moment, the cover plate 6 is pushed to move upwards under the reset action of the first spring 7, then the cover plate 6 pulls the push rod 12 to move upwards to contact with the extrusion of the traction rod 12 on the traction rods 20, and then the spring shaft 22 is reset, the draw bar 20 is pushed to unfold, so that the draw bar 20 pushes the clamping block 19 out of the through hole 17 and is clamped into the clamping groove 23, the screw 1 and the thread sleeve 5 are fixed, the stability of the installed fastener is improved, the cover plate 6 is repeatedly squeezed by an inner hexagonal wrench to move up and down in the notch 4 after installation, so that the cover plate 6 moves in a piston manner, air is injected into the air bag 10 through the air nozzle 11, the air bag 10 is expanded, the air nozzle 11 is in a round table shape with a wide upper part and a narrow lower part, the lower end of the air nozzle 11 penetrates through and extends into the air bag 10, so that the air is easily squeezed into the air bag 10, the air nozzle 11 deep into the air bag 10 can be squeezed after the air bag 10 is expanded, sealing is realized, the air leakage speed in the air bag 10 is reduced, and then the expanded air bag 10 discharges internal lubricating oil through the hole 24 under the action of air pressure, lubricating oil flows along the surface of the screw rod 1, lubrication maintenance on the surface of the screw rod 1 is realized, the rusting risk of the screw rod 1 is reduced, until air in the air bag 10 is exhausted, the lubricating oil is stopped to be discharged, and the hole 24 is formed in the expansion state of the air bag 10, so that the air bag 10 contracts when the air in the air bag 10 is exhausted, the hole 24 is closed, so that the internal lubricating oil in the contraction state of the air bag 10 is prevented from leaking, when maintenance is needed, the cover plate 6 is repeatedly pressed again, the lubricating oil is discharged from the inside of the air bag 10 to lubricate the screw rod 1, disassembly is convenient, because the plurality of shielding pieces 16 are arranged in the air port 15 on the cover plate 6, the shielding pieces 16 are combined into a downward-pointing conical shape, when the cover plate 6 moves downwards, the shielding pieces 16 are subjected to upward force under the action of air resistance, the closing conical shape realizes relative sealing on the air port 15, further reduces the air leakage when the cover plate 6 is pressed downwards, the speed of inflating the inside of the air bag 10 is increased, when the cover plate 6 moves upwards, the air is prevented from flowing out, and the air is prevented from flowing out when the air bag 6 is moved upwards.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A multi-section damping air spring fastener is characterized by comprising a screw rod (1), a gasket (2), a screw cap (3), a notch (4), a thread sleeve (5), a cover plate (6), a first spring (7), a stop block (8), a second groove (13) and a second spring (14), the gasket (2) is fixedly arranged at the upper end of the screw rod (1), the screw cap (3) is fixedly arranged at the upper end of the gasket (2), the notch (4) is arranged at the upper end of the screw cap (3), the thread sleeve (5) is sleeved at the lower end of the outer circular surface of the screw rod (1), the cover plate (6) is movably arranged at the upper end of the inner part of the notch (4), the first spring (7) is fixedly arranged at the middle position between the inner lower end of the notch (4) and the outer surface of the lower end of the cover plate (6), the second groove (13) is arranged on the inner surface of the notch (4), the stop block (8) is movably arranged in the second groove (13), the second spring (14) is fixedly arranged in the second groove (13) and is positioned between the stop block (8) and the second groove (13), the outer surface of the upper end of the stop block (8) is an arc surface, and a notch is formed in the edge of the outer surface of the upper end of the cover plate (6) corresponding to the stop block (8);
first recess (9) have been seted up to the outer lane that the lower extreme surface edge of gasket (2) lies in screw rod (1), the inside fixed mounting of first recess (9) has gasbag (10), the upper end surface fixed mounting of gasbag (10) has air cock (11), and the upper end of air cock (11) runs through gasket (2) and is linked together with notch (4), hole (24) have been seted up to the interior disc equidistance of gasbag (10) a plurality of, narrow round platform form under air cock (11) are wide, and the lower extreme of air cock (11) runs through and extends to the inside of gasbag (10), air cock (11) are the same with gasbag (10) material.
2. A multi-segmented cushioning air spring fastener according to claim 1, wherein said cavity (24) is formed in an inflated condition of said air bag (10), and wherein an interior of said air bag (10) is filled with a lubricating oil.
3. The air spring fastener with the multiple shock absorption sections according to claim 1, wherein an air vent (15) is formed in the edge of the outer surface of the upper end of the cover plate (6), a plurality of shielding pieces (16) are fixedly mounted on the inner surface of the air vent (15), the length of each shielding piece (16) is larger than the radius of the corresponding air vent (15), the shielding pieces (16) are combined into a downward-pointing cone shape, each shielding piece (16) is made of rubber, and adjacent shielding pieces (16) are not fixed.
4. The air spring fastener with the multi-section shock absorption according to claim 1, wherein clamping grooves (23) are formed in the front end and the rear end of the inner surface of the threaded sleeve (5), through holes (17) are formed in the lower end positions of the outer surfaces of the front end and the rear end of the threaded rod (1), a third groove (18) is formed in the lower end of the inner portion of each through hole (17), a push rod (12) is fixedly mounted in the center of the outer surface of the lower end of the cover plate (6), the lower end of the push rod (12) penetrates through and extends into the first spring (7), the threaded rod (1) and the through holes (17), the push rod (12) and the threaded rod (1) can slide up and down, clamping blocks (19) are movably mounted at the front end and the rear end of the inner portion of each through hole (17), opposite faces of the two clamping blocks (19) are movably mounted with hinges (21), a spring shaft (22) is movably mounted between the two traction rods (20), and the clamping blocks (19) penetrate through the inner portions of the clamping grooves (23).
5. A multi-stage damping air spring fastener according to claim 4, wherein the two pull rods (20) are bent downward into a V-shape by the spring shaft (22) and the hinge (21), and the pull rods (20) penetrate the inside of the third grooves (18).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110743495.7A CN113623302B (en) | 2021-07-01 | 2021-07-01 | Multi-section damping air spring fastener |
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| CN202110743495.7A CN113623302B (en) | 2021-07-01 | 2021-07-01 | Multi-section damping air spring fastener |
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| CN113623302A CN113623302A (en) | 2021-11-09 |
| CN113623302B true CN113623302B (en) | 2022-12-27 |
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| CN116950798B (en) * | 2023-09-18 | 2023-12-12 | 江苏中奕和创智能科技有限公司 | Sealing structure for engine of generator set |
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| JP4376680B2 (en) * | 2004-04-02 | 2009-12-02 | 株式会社ニフコ | Clip and airbag body mounting structure |
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| FR2686129A1 (en) * | 1992-01-09 | 1993-07-16 | Bry Daniel | Improvement in screws with a hollow housing |
| CN104314954A (en) * | 2014-08-15 | 2015-01-28 | 中国航空工业集团公司沈阳发动机设计研究所 | Falling-off prevention connecting and fastening structure |
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| CN113623302A (en) | 2021-11-09 |
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Effective date of registration: 20221208 Address after: 272000 No. 9 Industrial Park, Jining High tech Zone, Shandong Province (East of Nandeyuan Yarn Mill, Huangtun Town Government) Applicant after: JINING XINGFA SPRING Co.,Ltd. Address before: 235300 Room 202, building 3, Taoyuanju Anju, Lidu West Road, Dangshan County, Suzhou City, Anhui Province Applicant before: Wang Liuen |
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