CN113464517B - Noise reduction type piston rod - Google Patents
Noise reduction type piston rod Download PDFInfo
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- CN113464517B CN113464517B CN202110566323.7A CN202110566323A CN113464517B CN 113464517 B CN113464517 B CN 113464517B CN 202110566323 A CN202110566323 A CN 202110566323A CN 113464517 B CN113464517 B CN 113464517B
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- 230000009467 reduction Effects 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 229920000742 Cotton Polymers 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims description 23
- 230000009471 action Effects 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 206010017367 Frequent bowel movements Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a noise reduction type piston rod, which comprises a piston rod, a piston, a sealing assembly and a connecting base, wherein the lower end surface of the piston rod is fixed on the upper end surface of the piston; the invention has the following beneficial effects: when the piston rod ascends, the sealing ring is tightly attached to the inner wall of the oil cylinder or the air cylinder, so that the sealing effect is achieved, when the piston rod descends, the sealing ring can be contracted, the sliding friction of the piston rod is reduced, the piston rod descends more easily, and meanwhile noise is reduced; when the piston rod rises, the sound absorbing holes and the sound absorbing cotton can play a good role in noise reduction, when the piston rod descends, the attached dirt can be pushed out, the sound absorbing holes are prevented from being blocked, and the noise reduction effect is improved.
Description
Technical Field
The invention belongs to the technical field of piston rods, and particularly relates to a noise-reduction type piston rod.
Background
The piston rod is a connecting component for supporting the piston to do work, and most of the piston rod is applied to the cylinder and cylinder motion executing component and is a motion component with frequent motion and high technical requirements. The piston rod is mainly used for hydraulic and pneumatic, engineering machinery, piston rods for automobile manufacturing, guide posts of plastic machinery, roll shafts of packaging machinery and printing machinery, textile machinery, axes for conveying machinery and linear optical axes for linear motion. However, the traditional piston rod does not have the noise reduction function, so that the noise generated in the operation process of the piston rod cannot be eliminated, and the working stability is reduced. There is a need for a noise reduction type piston rod to solve this problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the problems in the background art by a noise reduction type piston rod.
The invention is realized by the following technical scheme: the utility model provides a type piston rod of making an uproar falls, includes piston rod, piston, sealing component and connection base, the lower extreme surface of piston rod is fixed at the upper end surface of piston, protruding type groove has been seted up to the lower extreme surface of piston, and the fixed block is fixed protruding type groove inner circle lower extreme of seting up of the lower extreme surface of piston, the connection base is fixed at the fixed block lower extreme, sealing component sets up on the piston, sealing component includes sealing washer, protruding type groove, upper connecting plate, sliding groove, shifting chute, spread groove, push rod, coupling spring, upper roof, stay cord one, stay cord two, coupling clip groove, connection snap ring, connection roof, connection spout, inhale sound cotton, cleaning rod, mounting groove, connection pull rod, connecting tube, connecting plate, inhale sound hole, reset spring, slide hole, slide bar, sliding ring and solid fixed ring.
Further, the circular truncated cone-shaped grooves are formed in the surface of the outer ring of the piston, the uniformly distributed connecting sliding grooves are formed in the surface of the outer ring of the circular truncated cone-shaped grooves formed in the surface of the outer ring of the piston, and the sealing rings are slidably connected with the circular truncated cone-shaped grooves formed in the surface of the outer ring of the piston through a plurality of uniformly distributed connecting sliding grooves.
Further, in the seal assembly, be provided with the roof slip in the protruding type groove, the removal groove has been seted up to the inside lower extreme of piston rod, a plurality of sliding grooves have been seted up on piston rod outer lane surface, just remove groove phase and a plurality of sliding groove homogeneous phase intercommunication, the upper junction plate activity is placed in the removal inslot, the outer lane ring of upper junction plate passes the sliding groove and arranges the piston rod outside in, smooth Kong Kaishe is in upper junction plate intermediate position, the slide hole runs through piston upper end surface and communicates with protruding type inslot, the slide hole of seting up on push rod passes upper junction plate and the piston, the upper end surface at the upper top plate is fixed to the lower extreme of push rod, the connection roof height is in the upper end of push rod, the upper end surface at the upper top plate is fixed to connecting spring, connecting spring's the other end is fixed at protruding type groove top.
Further, four evenly distributed stay ropes are fixed on the upper end surface of a sealing ring, the other end of each stay rope penetrates through a piston to be connected with an upper connecting plate, a plurality of equidistant sound absorbing holes are formed in the outer ring surface of the sealing ring, sound absorbing cotton is arranged in the sound absorbing holes, a plurality of mounting grooves are formed in the piston and communicated with the convex grooves, the sound absorbing holes are communicated with the mounting grooves, two sliding rods are fixed in each mounting groove, sliding rings are movably connected to the front side surface and the rear side surface of each connecting cylinder, the connecting cylinders are arranged on the two sliding rods in a sliding mode through the two sliding rings, a reset spring is fixed inside the connecting cylinders, the connecting rods are arranged in the connecting cylinders in a sliding mode, the other ends of the reset springs are fixed on fixing rings arranged on the connecting rods, one outward ends of the connecting rods are hinged to the connecting plates, the cleaning rods are fixed on the other end faces of the connecting plates, the cleaning rods are arranged in the sound absorbing holes, one ends of the connecting rods are connected with the two sliding rings, and the other ends of the connecting rods are connected with the two sliding rings and penetrate through the top plates.
Further, the connecting groove is formed in the lower end surface of the upper top plate, and the through hole in the connecting base is connected with the connecting groove.
Further, the connecting clamping groove is formed in the lower end surface of the upper connecting plate, the connecting clamping ring is fixed on the push rod, the distance between the upper top plate and the first stage of the convex groove is larger than the distance between the connecting clamping ring and the connecting clamping groove, when the connecting clamping ring is in actual use, air pressure or oil liquid firstly enters the connecting groove through the through hole in the connecting base, the upper top plate moves upwards along the convex groove under the action of the air pressure or the oil liquid, the push rod moves upwards under the action of the upper top plate, the connecting top plate fixed at the upper end of the push rod moves upwards, the second pull rope pulls the connecting rod into the convex groove, the cleaning rod is separated from the sound absorbing hole, the sound absorbing hole and the suction cotton are exposed, and noise reduction is performed.
Further, the sealing washer is a rubber sealing ring, connect the interval between snap ring and the connection draw-in groove and the clearance pole break away from and inhale the sound hole and remove the distance unanimous, when in actual use, when connection snap ring and the connection draw-in groove on the push rod are to the contact, clearance pole that this moment breaks away from and inhale the sound hole, then the push rod continues to upwards move, the upper connecting plate will be along with the push rod upwards move together, the sealing washer will upwards move under the effect of stay cord two, because the upper end external diameter of piston increases gradually, the sealing washer will outwards expand to play sealed effect.
After the technical scheme is adopted, the invention has the beneficial effects that: according to the noise reduction type piston rod, the sealing ring, the upper connecting plate, the sliding groove, the push rod, the upper top plate, the first pull rope, the connecting clamping groove, the connecting clamping ring, the connecting top plate, the connecting sliding groove and the sliding hole are arranged, so that the sealing ring is tightly attached to the inner wall of the oil cylinder or the air cylinder when the piston rod ascends, the sealing effect is achieved, the sealing ring can be contracted when the piston rod descends, the sliding friction of the piston rod is reduced, the piston rod descends more easily, and meanwhile noise is reduced.
According to the invention, through the upper connecting plate, the push rod, the upper top plate, the pull rope II, the sound absorbing cotton, the cleaning rod, the mounting groove, the connecting rod, the reset spring, the connecting plate, the sound absorbing hole and the connecting hole, when the piston rod ascends, the sound absorbing hole and the sound absorbing cotton can have a good noise reduction effect, and when the piston rod descends, the attached dirt can be pushed out, the blockage of the sound absorbing hole is prevented, and the noise reduction effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a noise reduction type piston rod according to the present invention.
Fig. 2 is a top view of a noise reduction type piston rod according to the present invention.
FIG. 3 is a schematic cross-sectional view of the F-F section of a noise reduction type piston rod according to the present invention.
Fig. 4 is an enlarged schematic view of a noise reduction type piston rod at a point a of the present invention.
Fig. 5 is an enlarged schematic view of a noise reduction type piston rod at position B.
Fig. 6 is a top view of an upper connecting plate of a noise reduction type piston rod of the present invention.
Fig. 7 is a schematic cross-sectional view of a connecting cylinder of a noise reduction type piston rod according to the present invention.
Fig. 8 is a schematic front view of a seal ring of a noise reduction type piston rod of the present invention.
FIG. 9 is a schematic diagram of a section of a noise reduction piston rod at G-G.
Fig. 10 is a bottom view of a noise reduction type piston rod according to the present invention.
Fig. 11 is a schematic cross-sectional view of a slip ring of a noise reduction type piston rod according to the present invention.
In the figure, the 1-piston rod, 2-piston, 3-sealing assembly, 4-connection base, 301-sealing ring, 302-convex groove, 303-upper connection plate, 304-sliding groove, 305-moving groove, 306-connection groove, 307-push rod, 308-connection spring, 309-upper top plate, 310-first pull rope, 311-second pull rope, 312-connection clamping groove, 313-connection clamping ring, 314-connection top plate, 315-connection sliding groove, 316-sound absorbing cotton, 317-cleaning rod, 318-mounting groove, 319-connection pull rod, 320-connection cylinder, 321-connection plate, 322-sound absorbing hole, 323-return spring, 324-sliding hole, 325-sliding rod, 326-sliding ring, 327-fixing ring and 401-fixing block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 11, the present invention is implemented by a technical scheme: the noise reduction type piston rod comprises a piston rod 1, a piston 2, a sealing assembly 3 and a connecting base 4, wherein the lower end surface of the piston rod 1 is fixed on the upper end surface of the piston 2, a convex groove 302 is formed in the lower end surface of the piston 2, a fixing block 401 is fixed at the lower end of an inner ring of the convex groove 302 formed in the lower end surface of the piston 2, the connecting base 4 is fixed at the lower end of the fixing block 401, the sealing assembly 3 is arranged on the piston 2, the sealing assembly 3 comprises a sealing ring 301, the convex groove 302, an upper connecting plate 303, a sliding groove 304, a moving groove 305, a connecting groove 306, a push rod 307, a connecting spring 308, an upper top plate 309, a first pull rope 310, a second pull rope 311, a connecting clamping groove 312, a connecting clamping ring 313, a connecting top plate 314, a connecting sliding groove 315, a sound absorbing cotton 316, a cleaning rod 317, a mounting groove 318, a connecting pull rod 319, a 320-connecting cylinder 320, a connecting plate 321, a sound absorbing hole 322, a reset spring 323, a sliding hole 324, a sliding ring 325, a sliding ring 326 and a fixing ring 327.
The round platform groove is formed in the outer ring surface of the piston 2, uniformly distributed connecting sliding grooves 315 are formed in the outer ring surface of the round platform groove formed in the outer ring surface of the piston 2, and the sealing ring 301 is slidably connected with the round platform groove formed in the outer ring surface of the piston 2 through a plurality of uniformly distributed connecting sliding grooves 315.
In the sealing assembly 3, an upper top plate 309 is arranged in a convex groove 302 to slide, a moving groove 305 is arranged at the lower end of the inner part of a piston rod 1, a plurality of sliding grooves 304 are arranged on the outer ring surface of the piston rod 1, the moving groove 305 is communicated with the sliding grooves 304, an upper connecting plate 303 is movably arranged in the moving groove 305, an outer ring of the upper connecting plate 303 passes through the sliding grooves 304 to be arranged on the outer side of the piston rod 1, a sliding hole 324 is arranged at the middle position of the upper connecting plate 303, the sliding hole 324 penetrates through the upper end surface of a piston 2 and is communicated with the convex groove 302, a push rod 307 passes through the upper connecting plate 303 and the sliding hole 324 arranged on the piston 2, the lower end of the push rod 307 is fixed on the upper end surface of the upper top plate 309, the connecting top plate 314 is arranged at the upper end of the push rod 307, a connecting spring 308 is fixed on the upper end surface of the upper top plate 309, and the other end of the connecting spring 308 is fixed on the top end of the convex groove 302.
Four evenly distributed stay ropes 310 are fixed on the upper end surface of a sealing ring 301, the other end of each stay rope 310 penetrates through a piston 2 to be connected with an upper connecting plate 303, a plurality of equally distributed sound absorbing holes 322 are formed in the outer ring surface of the sealing ring 301, sound absorbing cotton 316 is arranged in the sound absorbing holes 322, a plurality of mounting grooves 318 are formed in the piston 2 and are communicated with a convex groove 302, the sound absorbing holes 322 are communicated with the mounting grooves 318, sliding rings 326 are movably connected to the front side surface and the rear side surface of each connecting cylinder 320, each connecting cylinder 320 is slidably arranged on two sliding rods 325 through the two sliding rings 326, each connecting cylinder 320 is slidably arranged between the two sliding rods 325, a reset spring 323 is fixed inside each connecting cylinder 320, each connecting pull rod 319 is slidably arranged in each connecting cylinder 320, the other end of each reset spring 323 is fixed on a fixed ring 327 arranged on each connecting pull rod 319, one end of each upper connecting plate 303 is hinged with each connecting rod 320 outwards, the other end face of each connecting rod 320 is fixedly provided with a cleaning rod 317, each cleaning rod 317 is arranged in each sound absorbing hole 322, one end of each connecting pull rod 319 is connected with two ends 311 inwards, and each connecting rod 311 penetrates through the upper end of each connecting rod 311 to be connected with a top plate 314.
The connecting groove 306 is formed on the lower end surface of the upper top plate 309, and the through hole on the connecting base 4 is connected to the connecting groove 306.
The connecting clamping groove 312 is formed in the lower end surface of the upper connecting plate 303, a connecting clamping ring 313 is fixed on the push rod 307, and the distance between the upper top plate 309 and the first stage of the convex groove 302 is larger than the distance between the connecting clamping ring 313 and the connecting clamping groove 312.
The seal 301 is a rubber seal, and the distance between the connection clamp ring 313 and the connection clamp groove 312 is consistent with the distance that the cleaning rod 317 moves away from the sound absorbing hole 322.
As an embodiment of the present invention: in actual use, air pressure or oil enters the connecting groove 306 through the through hole on the connecting base 4, the upper top plate 309 moves upwards along the convex groove 302 under the action of air pressure or oil, the push rod 307 moves upwards under the action of the upper top plate 309, the connecting top plate 314 fixed at the upper end of the push rod 307 moves upwards, the second pull rope 311 pulls the connecting pull rod 319 into the convex groove 302, because the connecting cylinder 320 is slidably arranged on the slide rod 325 through the two slide rings 326, the connecting cylinder 320 and the slide ring 326 can rotate, the connecting cylinder 320 moves upwards along the slide rod 325, the displacement of the connecting pull rod 319 is facilitated, meanwhile, the service life of the connecting pull rod 319 and the connecting cylinder 320 can be prolonged, the cleaning rod 317 moves inwards and horizontally under the action of the connecting pull rod 319, the cleaning rod 317 is separated from the sound absorbing hole 322, a part of the outermost end of the cleaning rod 317 is arranged in the sound absorbing hole on the piston 2, the sound absorbing hole 322 and the suction cotton are exposed, at the moment, when the connecting clamp ring 313 on the connecting rod 307 contacts the connecting clamp groove 312 upwards, the cleaning rod 317 is separated from the sound absorbing hole 322, then the cleaning rod 317 moves upwards, the sealing ring 301 moves upwards along with the sealing ring 301, the sealing ring 301 moves upwards along with the sealing ring 301, and the sealing ring 301 moves upwards, and the sealing ring 301 is expanded upwards, and the sealing ring 301 is simultaneously, and the sealing ring 301 is moved upwards along with the sealing ring is moved upwards.
When the air pressure or oil in the air cylinder or the oil cylinder is extracted, the upper top plate 309 moves downwards under the action of the connecting spring 308 and the gravity of the upper top plate, the push rod 307 moves downwards, the sealing ring 301 moves downwards, the connecting pull rod 319 moves outwards under the action of the restoring spring 323, so that the cleaning rod 317 moves inwards towards the sound absorbing hole 322, when the sealing ring 301 stops moving, the sealing ring 301 returns to a normal state, the sliding friction of the piston rod 1 is reduced, the sound absorbing hole 322 and the connecting hole 323 are on the same axis, the cleaning rod 317 continues to move inwards towards the sound absorbing hole 322, and when the upper top plate 309 descends to the lowest end, the cleaning rod 317 penetrates into the sound absorbing hole 322 to push out attached dirt, so that the sound absorbing hole 322 is prevented from being blocked, and the noise reduction effect is prevented.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (2)
1. The utility model provides a type of making an uproar piston rod falls, includes piston rod (1), piston (2), seal assembly (3) and connection base (4), its characterized in that: the lower end surface of the piston rod (1) is fixed on the upper end surface of the piston (2), a convex groove (302) is formed in the lower end surface of the piston (2), a fixed block (401) is fixed at the lower end of an inner ring of the convex groove (302) formed in the lower end surface of the piston (2), a connecting base (4) is fixed at the lower end of the fixed block (401), a sealing assembly (3) is arranged on the piston (2), and the sealing assembly (3) comprises a sealing ring (301), a convex groove (302), an upper connecting plate (303), a sliding groove (304), a moving groove (305), a connecting groove (306), a push rod (307), a connecting spring (308), an upper top plate (309), a first stay rope (310), a second stay rope (311), a connecting clamping groove (312), a connecting clamp ring (313), a connecting top plate (314), a connecting chute (315), a sound absorbing cotton (316), a cleaning rod (317), a mounting groove (318), a connecting rod (319), a connecting cylinder (320), a connecting plate (321), a sound absorbing hole (322), a reset spring (323), a sliding hole (324), a sliding ring (325) and a fixing ring (327).
In the sealing assembly (3), the upper top plate (309) is slidably arranged in the convex groove (302), the moving groove (305) is formed at the inner lower end of the piston rod (1), a plurality of sliding grooves (304) are formed on the outer ring surface of the piston rod (1), the sliding grooves (304) are all communicated with the moving groove (305), the upper connecting plate (303) is movably arranged in the moving groove (305), the outer ring of the upper connecting plate (303) passes through the sliding groove (304) to be arranged at the outer side of the piston rod (1), a sliding hole (324) is formed in the middle position of the upper connecting plate (303), the sliding hole (324) penetrates through the upper end surface of the piston (2) and is communicated with the inside of the convex groove (302), the push rod (307) passes through the sliding hole (324) formed in the upper connecting plate (303) and the piston (2), the lower end of the push rod (307) is fixedly arranged on the upper end surface of the upper top plate (309), the upper end of the push rod (307) is fixedly connected with a connecting plate (314), the upper end surface of the upper connecting plate (309) is fixedly connected with a spring (308), and the other end of the top plate (308) is fixedly connected with the top end of the spring (308);
four evenly distributed first stay ropes (310) are arranged on the upper end surface of the sealing ring (301), two sliding rods (325) are fixedly arranged in the first stay ropes (310) and are connected with the upper connecting plate (303) through pistons (2), a plurality of equally-spaced sound absorbing holes (322) are formed in the outer ring surface of the sealing ring (301), sound absorbing cotton (316) are arranged in each sound absorbing hole (322), a plurality of mounting grooves (318) are formed in the pistons (2) and are communicated with the convex grooves (302), the mounting grooves (318) are communicated with the sound absorbing holes (322), two sliding rods (325) are fixedly arranged in each mounting groove (318), sliding rings (326) are movably connected to the front side surface and the rear side surface of each connecting cylinder (320), reset springs (323) are fixedly arranged in the connecting cylinders (320) through the two sliding rings (326) in a sliding mode, the connecting cylinders (319) are slidably arranged in the pistons (2) and are communicated with the convex grooves (302), one end face, which is fixedly connected with the other end face of the connecting plate (317), the cleaning rod (317) is arranged in the sound absorption hole (322), one inward end of the connecting pull rod (319) is connected with a second pull rope (311), and the other end of the second pull rope (311) penetrates through the upper end of the piston (2) to be connected with the connecting top plate (314);
the surface of the outer ring of the piston (2) is provided with a circular truncated cone-shaped groove, the surface of the outer ring of the circular truncated cone-shaped groove provided with a plurality of uniformly distributed connecting sliding grooves (315), and the sealing ring (301) is slidably arranged in the circular truncated cone-shaped groove provided on the surface of the outer ring of the piston (2) through the plurality of uniformly distributed connecting sliding grooves (315);
a connecting groove (306) is formed in the lower end surface of the upper top plate (309), and the connecting groove (306) is connected with a through hole in the connecting base (4);
the connection clamping groove (312) is formed in the lower end surface of the upper connecting plate (303), the connection clamping ring (313) is fixed on the push rod (307), the distance between the connection clamping ring (313) and the connection clamping groove (312) is smaller than the distance between the upper top plate (309) and the first stage of the convex groove (302), when the connection clamping ring is actually used, air pressure or oil firstly enters the connection groove (306) through the through hole in the connection base (4), the upper top plate (309) moves upwards along the convex groove (302) under the action of the air pressure or the oil, the push rod (307) moves upwards under the action of the upper top plate (309), the connection top plate (314) fixed at the upper end of the push rod (307) moves upwards, the second pull rope (311) pulls the connection pull rod (319) into the convex groove (302), the cleaning rod (317) is separated from the sound absorption hole (322), the sound absorption hole (322) is exposed, and the suction cotton is exposed, so that noise reduction is performed.
2. A noise reduction type piston rod as defined in claim 1, wherein: the sealing ring (301) is a rubber sealing ring, the moving distance of the cleaning rod (317) separating from the sound absorbing hole (322) is consistent with the distance between the connecting clamping ring (313) and the connecting clamping groove (312), when the connecting clamping ring (313) on the push rod (307) is contacted with the connecting clamping groove (312) in the actual use, the cleaning rod (317) at the moment is separated from the sound absorbing hole (322), then the push rod (307) continues to move upwards, the upper connecting plate (303) moves upwards along with the push rod (307), the sealing ring (301) moves upwards under the action of the second stay cord (311), and the sealing ring (301) expands outwards due to the gradual increase of the outer diameter of the upper end of the piston (2), so as to play a sealing role.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566323.7A CN113464517B (en) | 2021-05-24 | 2021-05-24 | Noise reduction type piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566323.7A CN113464517B (en) | 2021-05-24 | 2021-05-24 | Noise reduction type piston rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113464517A CN113464517A (en) | 2021-10-01 |
| CN113464517B true CN113464517B (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110566323.7A Active CN113464517B (en) | 2021-05-24 | 2021-05-24 | Noise reduction type piston rod |
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| CN (1) | CN113464517B (en) |
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| CN205715423U (en) * | 2016-06-17 | 2016-11-23 | 宁波科赛特气动科技有限公司 | One is pressed light high-speed shock eliminator |
| CN209959613U (en) * | 2019-05-28 | 2020-01-17 | 常州雕匠液压科技有限公司 | High-efficient hydraulic cylinder of making an uproar falls |
| CN110953289A (en) * | 2019-12-25 | 2020-04-03 | 浙江世泰实业有限公司 | Rubber shock absorber for automobile |
| CN212028227U (en) * | 2020-04-27 | 2020-11-27 | 恒和(福建)机械工贸有限责任公司 | Hydraulic cylinder with noise-reducing and shock-absorbing functions |
| CN213064148U (en) * | 2020-07-27 | 2021-04-27 | 佛山市佳事达糖制品有限公司 | Noise reduction cylinder of sugar cube machine |
-
2021
- 2021-05-24 CN CN202110566323.7A patent/CN113464517B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2027122A (en) * | 1978-05-25 | 1980-02-13 | Searle R J | Reciprocating Piston Machines |
| JP2003083310A (en) * | 2001-09-12 | 2003-03-19 | Kiso Kogyo:Kk | Cargo receiving stand raising cylinder |
| CN104006032A (en) * | 2014-05-09 | 2014-08-27 | 中船重工中南装备有限责任公司 | Two-direction mechanical locking hydraulic cylinder |
| CN205715423U (en) * | 2016-06-17 | 2016-11-23 | 宁波科赛特气动科技有限公司 | One is pressed light high-speed shock eliminator |
| CN209959613U (en) * | 2019-05-28 | 2020-01-17 | 常州雕匠液压科技有限公司 | High-efficient hydraulic cylinder of making an uproar falls |
| CN110953289A (en) * | 2019-12-25 | 2020-04-03 | 浙江世泰实业有限公司 | Rubber shock absorber for automobile |
| CN212028227U (en) * | 2020-04-27 | 2020-11-27 | 恒和(福建)机械工贸有限责任公司 | Hydraulic cylinder with noise-reducing and shock-absorbing functions |
| CN213064148U (en) * | 2020-07-27 | 2021-04-27 | 佛山市佳事达糖制品有限公司 | Noise reduction cylinder of sugar cube machine |
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| CN113464517A (en) | 2021-10-01 |
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