CN113464517A - Noise reduction type piston rod - Google Patents
Noise reduction type piston rod Download PDFInfo
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- CN113464517A CN113464517A CN202110566323.7A CN202110566323A CN113464517A CN 113464517 A CN113464517 A CN 113464517A CN 202110566323 A CN202110566323 A CN 202110566323A CN 113464517 A CN113464517 A CN 113464517A
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- 230000009467 reduction Effects 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 238000010521 absorption reaction Methods 0.000 claims abstract description 23
- 229920000742 Cotton Polymers 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 2
- 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
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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 relates to 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 to play a sealing role, and when the piston rod descends, the sealing ring can be contracted to reduce the gliding friction of the piston rod, so that the piston rod descends more easily, and meanwhile, the noise is reduced; when the piston rod ascends, the sound absorption holes and the sound absorption cotton can achieve a good noise reduction effect, and when the piston rod descends, attached dirt can be pushed out, so that the sound absorption 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, most of the piston rod is applied to an oil cylinder and an air cylinder movement executing component, and the piston rod is a movement component with frequent movement and high technical requirements. The piston rod is mainly used for piston rods for hydraulic pneumatics, engineering machinery and automobile manufacturing, guide posts of plastic machinery, roll shafts of packaging machinery and printing machinery, axes of textile machinery and conveying machinery and linear optical axes for linear motion. However, the conventional piston rod does not have the noise reduction function, and the noise generated in the operation process of the piston rod cannot be eliminated, so that the working stability is reduced. There is a need for a noise reducing piston rod to solve this problem.
Disclosure of Invention
In view of the shortcomings in the prior art, the present invention aims to solve the problems in the prior art by providing a noise reduction type piston rod.
The invention is realized by the following technical scheme: the utility model provides a type of making an uproar piston rod falls, includes piston rod, piston, seal assembly and connection base, the lower extreme surface mounting of piston rod is at the upper end surface of piston, protruding type groove has been seted up on the lower extreme surface of piston, and the fixed block is fixed protruding type groove inner circle lower extreme that the lower extreme surface of piston was seted up, it fixes the fixed block lower extreme to connect the base, seal assembly sets up on the piston, seal assembly includes sealing washer, protruding type groove, upper junction plate, sliding tray, shifting chute, spread groove, push rod, coupling spring, upper head plate, stay cord one, stay cord two, coupling groove, connection snap ring, connection roof, connection spout, inhale the sound cotton, clear up pole, mounting groove, connect the pull rod, connecting cylinder, connecting plate, inhale sound hole, reset spring, slide opening, slide bar, sliding ring and solid fixed ring.
Furthermore, a circular truncated cone-shaped groove is formed in the surface of the piston outer ring, the connecting sliding grooves are uniformly distributed in the surface of the circular truncated cone-shaped groove formed in the surface of the piston outer ring, and the sealing ring is in sliding connection with the circular truncated cone-shaped groove formed in the surface of the piston outer ring through a plurality of uniformly distributed connecting sliding grooves.
Further, in the sealing assembly, an upper top plate is arranged in the convex groove and slides, a moving groove is formed in the lower end of the interior of the piston rod, a plurality of sliding grooves are formed in the surface of the outer ring of the piston rod and are communicated with the sliding grooves, the upper connecting plate is movably placed in the moving groove, an outer ring of the upper connecting plate penetrates through the sliding grooves and is arranged on the outer side of the piston rod, a sliding hole is formed in the middle of the upper connecting plate, penetrates through the surface of the upper end of the piston and is communicated with the convex groove, the push rod penetrates through the sliding holes formed in the upper connecting plate and the piston, the lower end of the push rod is fixed to the upper end surface of the upper top plate, the height of the connecting top plate is located at the upper end of the push rod, the connecting spring is fixed to the surface of the upper end of the upper top plate, and the other end of the connecting spring is fixed to the top end of the convex groove.
Furthermore, four uniformly distributed first pull ropes are fixed on the upper end surface of the sealing ring, the other ends of the first pull ropes penetrate through the piston to be connected with the upper connecting plate, a plurality of sound absorption holes are formed in the outer ring surface of the sealing ring in an equidistant manner, the sound absorption cotton is arranged in the sound absorption holes, a plurality of mounting grooves are formed in the piston and communicated with the convex grooves, the sound absorption 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 the connecting cylinder, the connecting cylinder is arranged on the two sliding rods in a sliding manner through the two sliding rings, the reset spring is fixed inside the connecting cylinder in a sliding manner, the other end of the reset spring is fixed on a fixing ring arranged on the connecting pull rod, and one outward end of the connecting pull rod is hinged with the connecting plate, the other end face of the connecting plate is fixed with a cleaning rod, the cleaning rod is arranged in the sound absorption hole, one inward end of the connecting pull rod is connected with a second pull rope, and the other end of the second pull rope penetrates through the upper end of the piston to be connected with the connecting top plate.
Furthermore, the connecting groove is formed in the surface of the lower end of the upper top plate, and the through hole in the connecting base is connected with the connecting groove.
Further, connecting groove sets up on the lower extreme surface of upper junction plate, be fixed with the connection snap ring on the push rod, the interval between the first stage of going up roof and convex groove is greater than the interval between connection snap ring and the connecting groove, and when in actual use, atmospheric pressure or fluid will enter into the spread groove through the through-hole on the connection base at first, go up the roof and move up along convex groove under the effect of atmospheric pressure or fluid, and the push rod moves up under the effect of last roof for the fixed connection roof rebound in push rod upper end, stay cord two will connect the pole to the pulling of convex groove, the clearance pole with inhale the sound hole and break away from, inhale the sound hole and attract cotton to expose, fall and make an uproar.
Further, the sealing washer is a rubber seal ring, the interval between connection snap ring and the connecting groove is unanimous with the distance that the clearance pole breaks away from to inhale the sound hole and removes, when in actual use, when connection snap ring on the push rod and connecting groove to the contact, the clearance pole at this moment breaks away from to inhale the sound hole, then the push rod continues rebound, the upper junction plate will be along with the push rod rebound together, the sealing washer will rebound 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 can be tightly attached to the inner wall of the oil cylinder or the air cylinder to play a sealing role when the piston rod is lifted up through the arranged sealing ring, the upper connecting plate, the sliding groove, the push rod, the upper top plate, the first pull rope, the first connecting clamping groove, the connecting clamping ring, the connecting top plate, the connecting sliding groove and the sliding hole, the sealing ring can be contracted when the piston rod is lowered, the downward sliding friction of the piston rod is reduced, the piston rod is lowered more easily, and meanwhile, the noise is reduced.
According to the invention, through the upper connecting plate, the push rod, the upper top plate, the second pull rope, 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 good noise reduction effect, when the piston rod descends, 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 present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an overall structure of a noise reduction piston rod according to the present invention.
Fig. 2 is a top view of a noise-reducing piston rod according to the present invention.
Fig. 3 is a schematic cross-sectional view at F-F of a noise reduction piston rod according to the present invention.
Fig. 4 is an enlarged schematic view of a position a of a noise reduction piston rod according to the present invention.
Fig. 5 is an enlarged schematic view of a noise reduction piston rod at a position B according to the present invention.
Fig. 6 is a top view of an upper connecting plate of a noise reduction type piston rod according to the present invention.
Fig. 7 is a schematic cross-sectional view of a connecting cylinder of a noise-reducing piston rod according to the present invention.
Fig. 8 is a schematic front view of a sealing ring of a noise reduction piston rod according to the present invention.
Fig. 9 is a schematic sectional view at G-G of a noise reduction type piston rod according to the present invention.
Fig. 10 is a bottom view of a noise-reducing piston rod according to the present invention.
Fig. 11 is a schematic cross-sectional view of a slip ring of a noise-reducing piston rod according to the present invention.
In the figure, 1-piston rod, 2-piston, 3-sealing component, 4-connecting base, 301-sealing ring, 302-convex groove, 303-upper connecting plate, 304-sliding groove, 305-moving groove, 306-connecting groove, 307-push rod, 308-connecting spring, 309-upper top plate, 310-first pull rope, 311-second pull rope, 312-connecting clamping groove, 313-connecting snap ring, 314-connecting top plate, 315-connecting sliding groove, 316-sound-absorbing cotton, 317-cleaning rod, 318-mounting groove, 319-connecting pull rod, 320-connecting cylinder, 321-connecting 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 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 11, the present invention adopts a technical solution: a 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, the fixing block 401 is fixed at the lower end of the 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 pull rope I310, a pull rope II 311, a connecting clamping groove 312, a connecting clamping ring 313, a connecting top plate 314, a connecting sliding groove 315, sound absorption 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 absorption hole 322, a reset spring 323, A slide hole 324, a slide rod 325, a slide ring 326, and a fixed ring 327.
The circular truncated cone-shaped groove is formed in the surface of the outer ring of the piston 2, the uniformly distributed connecting sliding grooves 315 are formed in the surface of the outer ring of the circular truncated cone-shaped groove formed in the surface of the outer ring of the piston 2, and the sealing ring 301 and the circular truncated cone-shaped groove formed in the surface of the outer ring of the piston 2 are connected in a sliding mode through the 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 inside a piston rod 1, a plurality of sliding grooves 304 are arranged on the surface of the outer ring of the piston rod 1, the moving groove 305 is communicated with the plurality of sliding grooves 304, an upper connecting plate 303 is movably placed in the moving groove 305, the outer ring of the upper connecting plate 303 penetrates through the sliding grooves 304 and is placed on the outer side of the piston rod 1, a sliding hole 324 is arranged in the middle 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 convex groove 302, a push rod 307 penetrates 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 at the top end of the convex groove 302.
Four uniformly distributed first pulling ropes 310 are fixed on the upper end surface of the sealing ring 301, the other ends of the first pulling ropes 310 penetrate through the piston 2 and are connected with the upper connecting plate 303, a plurality of sound absorption holes 322 distributed at equal intervals are arranged on the outer ring surface of the sealing ring 301, sound absorption cotton 316 is arranged in the sound absorption holes 322, a plurality of mounting grooves 318 are arranged in the piston 2 and are communicated with the convex grooves 302, the sound absorption holes 322 are communicated with the mounting grooves 318, the front side surface and the rear side surface of the connecting cylinder 320 are movably connected with slip rings 326, the connecting cylinder 320 is arranged on two sliding rods 325 in a sliding way through the two slip rings 326, the connecting cylinder 320 is arranged between the two sliding rods 325 in a sliding way, a return spring 323 is fixed inside the connecting cylinder 320, the connecting pull rod 319 is arranged in a sliding way, the other end of the return spring 323 is fixed on a fixing ring 327 arranged on the connecting pull rod 319, the outer end of the upper connecting plate 303 is hinged with the connecting pull rod 319 and the connecting plate 320, a cleaning rod 317 is fixed on the other end face of the connecting plate 320, the cleaning rod 317 is arranged in the sound absorbing hole 322, one inward end of the connecting pull rod 319 is connected with a second pulling rope 311, and the other end of the second pulling rope 311 penetrates through the upper end of the piston 2 to be connected with the connecting top plate 314.
The connecting groove 306 is opened on the lower end surface of the upper top plate 309, and the through hole on the connecting base 4 is connected with 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 a stage of the convex groove 302 is larger than the distance between the connecting clamping ring 313 and the connecting clamping groove 312.
The sealing ring 301 is a rubber sealing ring, and the distance between the connecting snap ring 313 and the connecting snap groove 312 is the same as the moving distance of the cleaning rod 317 away from the sound absorbing hole 322.
As an embodiment of the present invention: in practical use, air pressure or oil firstly 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 the air pressure or the oil, the push rod 307 moves upwards under the action of the upper top plate 309, so that the connecting top plate 314 fixed at the upper end of the push rod 307 moves upwards, the connecting pull rod 319 is pulled into the convex groove 302 by the two pull ropes 311, as the connecting cylinder 320 is slidably arranged on the slide rod 325 through the two slide rings 326 and can rotate between the connecting cylinder 320 and the slide rings 326, the connecting cylinder 320 moves upwards along the slide rod 325, the displacement of the connecting pull rod 319 is facilitated, the service lives 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, and a part of the outermost end of the cleaning rod 317 is arranged in the sound absorbing hole on the piston 2, inhale sound hole 322 and attract cotton to expose, when connecting snap ring 313 on the push rod 307 was to the contact with connecting draw-in groove 312 this moment, clearance rod 317 breaks away from and inhales sound hole 322, then push rod 307 continues the rebound, upper junction plate 303 will be along with push rod 307 rebound together, sealing washer 301 will rebound under the effect of two 311 stay cords, because the upper end external diameter of piston 2 increases gradually, sealing washer 301 will expand outwards, thereby play sealed effect, inhale sound hole 322 on the sealing washer 301 and the inner wall of cylinder or hydro-cylinder contacts simultaneously, play good noise reduction effect.
When air pressure or oil in the air cylinder or the oil cylinder is pumped out, the upper top plate 309 moves downwards under the action of the connecting spring 308 and self gravity, the push rod 307 moves downwards, the sealing ring 301 moves downwards, the connecting pull rod 319 moves outwards under the action of the reset spring 323, so that the cleaning rod 317 moves towards the sound absorption hole 322, when the sealing ring 301 stops moving, the sealing ring 301 recovers the normal state, the sliding friction of the piston rod 1 is reduced, the sound absorption hole 322 and the connecting hole 323 are on the same axis, the cleaning rod 317 continues to move towards the sound absorption hole 322, when the upper top plate 309 descends to the lowest end, the cleaning rod 317 penetrates into the sound absorption hole 322, attached dirt is pushed out, the blockage of the sound absorption hole 322 is prevented, and the noise reduction effect is influenced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a type of making an uproar piston rod falls, includes piston rod (1), piston (2), seal assembly (3) and connects base (4), its characterized in that: the lower extreme surface of piston rod (1) is fixed on the upper end surface of piston (2), convex groove (302) have been seted up to the lower extreme surface of piston (2), and fixed block (401) are fixed convex groove (302) inner circle lower extreme that the lower extreme surface of piston (2) was seted up, connection base (4) are fixed at fixed block (401) lower extreme, seal assembly (3) set up on piston (2), seal assembly (3) are including sealing washer (301), convex groove (302), upper junction plate (303), sliding tray (304), shifting chute (305), spread groove (306), push rod (307), coupling spring (308), last roof (309), stay cord (310), stay cord two (311), coupling groove (312), coupling snap ring (313), connect roof (314), connect spout (315), inhale sound cotton (316), clearance pole (317), The device comprises a mounting groove (318), a connecting pull rod (319), a connecting cylinder (320), a connecting plate (321), a sound absorbing hole (322), a return spring (323), a sliding hole (324), a sliding rod (325), a sliding ring (326) and a fixing ring (327).
2. A noise reducing piston rod according to claim 1, wherein: the piston (2) outer lane surface has seted up the round platform groove, a plurality of evenly distributed's connection spout (315) have been seted up on the round platform groove outer lane surface that piston (2) outer lane surface was seted up, sealing washer (301) slide through a plurality of evenly distributed's connection spout (315) and set up the round platform groove of seting up on piston (2) outer lane surface.
3. A noise reducing piston rod according to claim 1, wherein: in the sealing assembly (3), the upper top plate (309) is slidably arranged in a convex groove (302), the moving groove (305) is arranged at the lower end in the piston rod (1), a plurality of sliding grooves (304) are arranged on the outer ring surface of the piston rod (1), the sliding grooves (304) are 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) penetrates through the sliding grooves (304) and is arranged on the outer side of the piston rod (1), a sliding hole (324) is arranged in the middle 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 convex groove (302), the push rod (307) penetrates through the upper connecting plate (303) and the sliding hole (324) arranged on the piston (2), and the lower end of the push rod is fixed on the upper end surface of the upper top plate (309), a connecting top plate (314) is fixed at the upper end of the push rod (307), a connecting spring (308) is connected to the upper end surface of the upper top plate (309), and the other end of the connecting spring (308) is fixed at the top end of the convex groove (302).
4. A noise reducing piston rod according to claim 3, wherein: the sealing ring is characterized in that four uniformly distributed pull ropes I (310) are arranged on the upper end surface of the sealing ring (301), the other end of each pull rope I (310) penetrates through the piston (2) to be connected with the upper connecting plate (303), a plurality of sound absorption holes (322) are formed in the outer ring surface of the sealing ring (301), sound absorption cotton (316) is arranged in each sound absorption hole (322), a plurality of mounting grooves (318) are formed in the piston (2) and communicated with the convex grooves (302), the mounting grooves (318) are communicated with the sound absorption holes (322), two sliding rods (325) are fixed in each mounting groove (318), sliding rings (326) are movably connected to the front side surface and the rear side surface of the connecting cylinder (320), and the connecting cylinder (320) is arranged on the two sliding rods (325) in a sliding mode through the two sliding rings (326), connecting cylinder (320) inside is fixed with reset spring (323), connect pull rod (319) slip setting in connecting cylinder (320), the fixed ring (327) that set up on connecting pull rod (319) are fixed to the other end of reset spring (323), it is articulated with connecting plate (321) to connect pull rod (319) one end outwards, another terminal surface of connecting plate (321) is fixed with cleaning rod (317), cleaning rod (317) are arranged in inhaling sound hole (322), the one end inwards of connecting pull rod (319) is connected with stay cord two (311), the other end of stay cord two (311) passes piston (2) upper end and is connected with connection roof (314).
5. A noise reducing piston rod according to claim 3, wherein: the lower end surface of the upper top plate (309) is provided with a connecting groove (306), and the connecting groove (306) is connected with a through hole on the connecting base (4).
6. A noise reducing piston rod according to claim 3, wherein: the lower end surface of the upper connecting plate (303) is provided with a connecting clamping groove (312), the connecting clamping ring (313) is fixed on the push rod (307), the distance between the connecting clamping ring (313) and the connecting clamping groove (312) is smaller than the distance between the upper top plate (309) and a stage of the convex groove (302), when the air pressure or oil enters the connecting groove (306) through a through hole on the connecting base (4) in actual use, 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) to enable the connecting top plate (314) fixed at the upper end of the push rod (307) to move upwards, the connecting pull rod (319) is pulled towards the convex groove (302) by the pull rope II (311), the cleaning rod (317) is separated from the sound absorbing hole (322), the sound absorbing hole (322) and the suction cotton are exposed, and (6) noise reduction is carried out.
7. A noise reducing piston rod according to claim 3, wherein: the sealing ring (301) is a rubber sealing ring, the distance that the cleaning rod (317) breaks away from the movement of the sound absorbing hole (322) is consistent with the distance between the connecting snap ring (313) and the connecting snap groove (312), when the cleaning rod is in actual use, when the connecting snap ring (313) on the push rod (307) is in contact with the connecting snap groove (312), the cleaning rod (317) breaks away 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 pulling rope II (311), and the outer diameter of the upper end of the piston (2) is gradually increased, so that the sealing ring (301) expands outwards to achieve a sealing effect.
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 |
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| Publication Number | Publication Date |
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| CN113464517A true CN113464517A (en) | 2021-10-01 |
| CN113464517B CN113464517B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110566323.7A Active CN113464517B (en) | 2021-05-24 | 2021-05-24 | Noise reduction type piston rod |
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2021
- 2021-05-24 CN CN202110566323.7A patent/CN113464517B/en active Active
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