CN117212107A - Noise reduction type air filter of air compressor - Google Patents
Noise reduction type air filter of air compressor Download PDFInfo
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- CN117212107A CN117212107A CN202311472055.8A CN202311472055A CN117212107A CN 117212107 A CN117212107 A CN 117212107A CN 202311472055 A CN202311472055 A CN 202311472055A CN 117212107 A CN117212107 A CN 117212107A
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- 230000009467 reduction Effects 0.000 title claims abstract description 30
- 229920000742 Cotton Polymers 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims description 21
- 230000009471 action Effects 0.000 description 7
- 238000001914 filtration Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Abstract
The invention relates to the technical field of air filters of air compressors, in particular to a noise reduction type air filter of an air compressor, which comprises a first shell and a sound insulation device; the second shell is arranged on one side of the first shell along the axis of the first shell, and one end of the second shell is in threaded fit with one end of the first shell; the inner shell is arranged in the second outer shell along the axis of the second outer shell, and the filter element is arranged in the inner shell; the circular ring is arranged on one side, close to the first shell, of the second shell along the axis of the second shell, and is in running fit with the second shell; the ejector rod is arranged on the inner shell in a penetrating manner along the radial direction of the second outer shell, and is in sliding fit with the inner shell; the sound-absorbing cotton covers one end of the ejector rod, which is positioned at the inner side of the inner shell; the transmission device is arranged at one side of the ejection rod; the limiting device is arranged in the first shell; the fixing devices are respectively arranged on the first shell and the second shell. The invention can effectively reduce noise and facilitate the replacement of the filter element.
Description
Technical Field
The invention relates to the technical field of air filters of air compressors, in particular to a noise reduction type air filter of an air compressor.
Background
The air filter of the air compressor consists of an air filter assembly and a filter element, and is externally connected to an air inlet valve of the air compressor through a connector and a threaded pipe, so that impurities such as dust, particles and the like in the air are filtered. The air filter of the air compressor in the prior art has a single structure, and when in use, larger noise is easy to generate, and in addition, the filter element in the air filter of the air compressor is more complex to maintain or replace.
Chinese patent CN217712885U discloses an air filter of air compressor machine that can noise reduction, including outer casing and the interior casing that constitutes the air filter main part, outer casing and interior casing are sealed to be torn open and are connected as an organic wholely, and install the filter core assembly in the interior casing, it has the intake pipe to inlay on the interior casing, and the one end of intake pipe leads to the import of filter core assembly, fixed mounting has the sealed cowling on the outer casing, and the inboard of sealed cowling leads to the export of filter core assembly, the outside detachable of sealed cowling is connected with the outlet duct, the inner wall fixed mounting of sealed cowling has the muffler.
Above-mentioned scheme is although can with the noise filtering between filter core and the empty assembly that strains, but also can produce the squeal when the air passes through the filter core, only filters the noise between filter core and the empty assembly that strains and can't completely isolate the noise, and this is because the sound that the filter core department produced can be conducted out through the casing outside the filter core, if directly set up the sound absorbing article on the filter core lateral wall, then can lead to when changing the filter core body because the shielding of sound absorbing article can't take out the filter core body.
Disclosure of Invention
According to the noise reduction type air filter of the air compressor, when the noise reduction type air filter is installed, the axis of the second shell and the axis of the first shell are required to be in a collinear state, so that the second shell can be screwed onto the first shell, after the end part of the first shell is connected with the end part of the second shell, the limiting device on the first shell limits the circular ring in the second shell, the circular ring cannot synchronously rotate along with the second shell, the circular ring and the second shell relatively rotate when the second shell rotates, at the moment, the transmission device arranged in the second shell is driven, the transmission device drives the ejector rod to slide along the radial direction of the second shell, the ejector rod moves towards the inside of the inner shell under the action of the transmission device, the ejector rod jacks up soundproof cotton arranged on the inner wall of the inner shell, the soundproof cotton originally attached to the inner wall of the inner shell forms a triangle protruding towards the center of the inner shell under the action of the ejector rod, the convex cotton can form a trap for noise, the noise is filtered, meanwhile, the filter element is arranged inside the inner shell, the second outer shell is not matched with the first shell, the filter element is not matched with the first shell, the soundproof cotton is not convenient to replace the filter element, and the filter element is not pushed out.
In order to solve the problems in the prior art, the invention provides a noise reduction type air filter of an air compressor, which comprises a first shell and a sound insulation device; the sound insulation device comprises a second outer shell, an inner shell, a circular ring, sound insulation cotton, an ejector rod, a transmission device, a limiting device and a fixing device; the first shell is of a cylindrical structure, the second shell is of a tubular structure, the second shell is arranged on one side of the first shell along the axis of the first shell, and one end of the second shell is in threaded fit with one end of the first shell; the inner shell is arranged in the second outer shell along the axis of the second outer shell, a first gap is reserved between the inner shell and the second outer shell, the first gap is of an annular structure, and the filter element is arranged in the inner shell; the circular ring is arranged on one side, close to the first shell, of the second shell along the axis of the second shell, and is in running fit with the second shell; the plurality of ejector rods are arranged, penetrate through the inner shell along the radial direction of the second outer shell, are in sliding fit with the inner shell, and are uniformly distributed on the inner shell around the axis of the second outer shell; the sound-absorbing cotton covers one end of the ejector rod, which is positioned at the inner side of the inner shell, and the sound-absorbing cotton is ejected when the ejector rod moves towards the inner side of the inner shell, and the side edges of the sound-absorbing cotton positioned at the two sides of the ejector rod are fixedly connected with the inner wall of the inner shell; the transmission device is arranged on one side of the ejection rod, and the ejection rod is driven to slide along the radial direction of the second shell through the transmission device after the second shell rotates; the limiting device is arranged in the first shell and limits the rotation of the circular ring when the first shell and the second shell are in threaded fit; the fixing device is arranged on the first shell and the second shell respectively, and the first shell and the second shell are fixed through the fixing device after being in threaded fit.
Preferably, the transmission device comprises a toothed ring, a gear, a worm wheel and a limiting component; the toothed ring is fixedly arranged on the inner wall of the second shell along the axis of the second shell and is positioned on one side of the circular ring; the gears are uniformly arranged on one side, close to the toothed ring, of the circular ring around the axis of the toothed ring, and the gears are meshed with the toothed ring; the worm is fixedly arranged at the end part of the gear along the axis of the gear; the worm wheels are divided into a plurality of groups, each group corresponds to the worm one by one, the worm wheels in each group are meshed with the worm, the worm wheels in each group are uniformly distributed along the axis direction of the worm, the worm wheels are provided with through grooves along the axis of the worm wheels, the ejector rod is arranged in the through grooves in a penetrating manner along the length direction of the through grooves in a penetrating manner, and the ejector rod is in threaded fit with the worm wheels; the limiting component is arranged on the inner shell and limits the ejector rod to rotate around the axis of the worm wheel.
Preferably, the soundproof cotton is provided with a plurality of layers, and a second gap is formed between adjacent soundproof cotton when the ejector rod is ejected.
Preferably, the limiting device comprises a partition plate, a first spring, a limiting block and a clamping groove; the partition board is of an annular structure and is fixedly arranged on the inner wall of the shell along the axis of the first shell; the limiting block is arranged on one side, close to the second shell, of the partition plate along the axis of the first shell in a sliding manner, and a first gap is reserved between the limiting block and the partition plate; the first spring is arranged in the first gap, and two ends of the first spring are fixedly connected with the limiting block and the partition plate respectively; the clamping groove penetrates through the side wall of the circular ring along the axis of the second shell, and is matched with the limiting block in a clamping mode.
Preferably, the sound insulation device further comprises an anti-rotation device, wherein the anti-rotation device comprises a groove, an anti-rotation block and a second spring; the groove is formed on one side, close to the circular ring, of the toothed ring along the axis of the second shell; the anti-rotation block is arranged in the groove in a sliding manner along the extending direction of the groove, a second gap is reserved between the anti-rotation block and the bottom of the groove, and the anti-rotation block is matched with the clamping groove in a clamping manner; the second spring is arranged in the second gap, two ends of the second spring are fixedly connected with the anti-rotation block and the bottom of the groove respectively, and the elastic force of the first spring is larger than that of the second spring.
Preferably, the fixing device comprises an extension lug, a fixing shell, a push button, a bolt and a third spring; the extending lug is fixedly arranged on the side wall of the first shell, and a jack is formed in the extending lug in a penetrating manner along the axis of the first shell; the fixed shell is fixedly arranged on the side wall of the second shell, and a working groove is formed in one side, close to the extension lug, of the fixed shell; the bolt is arranged in the working groove in a sliding manner along the length direction of the working groove, and a third gap is reserved between the bolt and the end part of the working groove; the push button is fixedly arranged on the bolt; the third spring is arranged in the third gap, and two ends of the third spring are respectively and fixedly arranged on the end parts of the bolt and the working groove.
Preferably, the limiting device further comprises a guide rod; the cross section of guide bar is non-circular structure, and the guide bar is fixed to be set up in stopper one side of keeping away from the joint groove along the axis of first spring, and the guide bar runs through in the baffle and with baffle sliding fit.
Preferably, the limiting component comprises a convex block and a limiting groove; the limiting groove is formed in the side wall of the ejector rod along the axis of the ejector rod; the lug is fixedly arranged on the inner shell, and the lug is in sliding fit with the limit groove.
Preferably, the sound insulation device further comprises a cover plate; the apron is annular structure, and apron detachable sets up the one end of keeping away from first shell at the second shell.
Preferably, the sound insulation device further comprises a clamping sleeve; the clamping sleeves are arranged in a plurality, the clamping sleeves correspond to the worms one by one, the clamping sleeves are fixedly arranged on the cover plate, and the clamping sleeves are in running fit with the worms.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the second shell, the inner shell, the circular ring, the soundproof cotton, the ejector rod, the transmission device, the limiting device and the fixing device are arranged, when the soundproof cotton is installed, the axis of the second shell and the axis of the first shell are required to be in a collinear state, so that the second shell can be screwed onto the first shell, after the end part of the first shell is connected with the end part of the second shell, the limiting device on the first shell limits the circular ring in the second shell, so that the circular ring cannot synchronously rotate along with the second shell, the circular ring rotates relatively with the second shell when the second shell rotates, the transmission device arranged in the second shell is driven at the moment, the transmission device drives the ejector rod to slide along the radial direction of the second shell, the ejector rod moves towards the inner part of the inner shell under the action of the transmission device, the soundproof cotton arranged on the inner wall of the inner shell is jacked by the ejector rod, the soundproof cotton originally attached to the inner wall of the inner shell forms a triangle protruding towards the inner shell under the action of the ejector rod, so that the raised soundproof cotton can form a trap for noise, and the noise is improved, meanwhile, the filter element is convenient to replace the filter core when the filter element is not matched with the first outer shell, and the filter element is not convenient to eject the filter element.
Drawings
Fig. 1 is a schematic perspective view of a noise reduction type air filter of an air compressor after a first housing and a second housing are connected.
Fig. 2 is a perspective view illustrating a noise reduction type air filter of the air compressor when a first housing and a second housing are in a separated state.
Fig. 3 is a schematic perspective view of the noise reduction type air filter of the air compressor, from which the limiting device, the first housing and the second housing are removed.
Fig. 4 is a partially enlarged schematic illustration of a noise reduction type air filter of the air compressor at a position a in fig. 3.
Fig. 5 is a schematic perspective view of a first housing of a noise reduction type air filter of an air compressor, which is provided with a limiting device.
Fig. 6 is a side view of the noise reduction type air filter of the air compressor with the limiting device and the first housing removed.
Fig. 7 is a schematic cross-sectional view of the noise reduction type air compressor air filter at B-B in fig. 6.
Fig. 8 is a schematic perspective view of a cross-section of a noise reduction type air filter of an air compressor.
Fig. 9 is a partially enlarged schematic view of the air filter of the noise reduction type air compressor at C in fig. 8.
Fig. 10 is a side view of a noise reduction type air filter of an air compressor when a stopper is inserted into a clamping groove.
Fig. 11 is a schematic cross-sectional view of a noise reduction type air filter of the air compressor at D-D in fig. 10.
Fig. 12 is a schematic perspective view of an inner housing of a noise reduction type air filter of an air compressor, which is provided with a limiting assembly.
Fig. 13 is a partially enlarged schematic illustration of a noise reduction type air filter of the air compressor at E in fig. 12.
The reference numerals in the figures are:
1-a first housing; 2-sound insulation means; 21-a second housing; 211-an inner shell; 212-a circular ring; 213-cover plate; 2131-a clamping sleeve; 22-soundproof cotton; 23-an ejector rod; 24-transmission device; 241-toothed ring; 242-gear; 243-worm; 244-worm gear; 245-a limiting assembly; 2451-bump; 2452-limit groove; 25-limiting devices; 251-separator; 252-a first spring; 253-limiting block; 254-guide bar; 26-fixing means; 261-extending ears; 262-fixing the shell; 263-push button; 264-a bolt; 265-a third spring; 27-an anti-rotation device; 271-grooves; 272-anti-rotation block; 273-second spring; 3-filter element.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1-3 and 6: a noise reduction type air filter of an air compressor comprises a first shell 1 and a sound insulation device 2; the sound insulation device 2 comprises a second outer shell 21, an inner shell 211, a circular ring 212, sound insulation cotton 22, an ejector rod 23, a transmission device 24, a limiting device 25 and a fixing device 26; the first shell 1 is of a cylindrical structure, the second shell 21 is of a tubular structure, the second shell 21 is arranged on one side of the first shell 1 along the axis of the first shell 1, and one end of the second shell 21 is in threaded fit with one end of the first shell 1; the inner shell 211 is arranged in the second outer shell 21 along the axis of the second outer shell 21, a first gap is reserved between the inner shell 211 and the second outer shell 21, the first gap is in an annular structure, and the filter element 3 is arranged inside the inner shell 211; the circular ring 212 is arranged on one side of the second shell 21, which is close to the first shell 1, along the axis of the second shell 21, and the circular ring 212 is in rotating fit with the second shell 21; the ejector rods 23 are provided in plurality, the ejector rods 23 penetrate through the inner shell 211 along the radial direction of the second outer shell 21, the ejector rods 23 are in sliding fit with the inner shell 211, and the ejector rods 23 are uniformly distributed on the inner shell 211 around the axis of the second outer shell 21; the sound-absorbing cotton covers one end of the ejector rod 23 positioned on the inner side of the inner shell 211, the sound-absorbing cotton is ejected when the ejector rod 23 moves towards the inner shell 211, and the side edges of the sound-absorbing cotton positioned on the two sides of the ejector rod 23 are fixedly connected with the inner wall of the inner shell 211; the transmission device 24 is arranged at one side of the ejector rod 23, and the ejector rod 23 is driven to slide along the radial direction of the second shell 21 through the transmission device 24 after the second shell 21 rotates; the limiting device 25 is arranged in the first shell 1, and the limiting device 25 limits the rotation of the circular ring 212 when the first shell 1 and the second shell 21 are in threaded fit; the fixing device 26 is respectively arranged on the first shell 1 and the second shell 21, and the first shell 1 and the second shell 21 are fixed through the fixing device 26 after the threaded fit is completed.
When the second shell 21 and the first shell 1 are required to be in a collinear state during installation, so that the second shell 21 can be screwed on the first shell 1, after the end part of the first shell 1 is connected with the end part of the second shell 21, the limiting device 25 on the first shell 1 limits the circular ring 212 in the second shell 21, so that the circular ring 212 cannot synchronously rotate along with the second shell 21, the circular ring 212 rotates relative to the second shell 21 when the second shell 21 rotates, at the moment, the transmission device 24 arranged in the second shell 21 is driven, the transmission device 24 drives the ejection rod 23 to slide along the radial direction of the second shell 21, the ejection rod 23 moves towards the inner part of the inner shell 211 under the action of the transmission device 24, the ejection rod 23 ejects sound-absorbing cotton arranged on the inner wall of the inner shell 211, the sound-absorbing cotton attached to the inner wall of the inner shell 211 forms a triangle protruding towards the center of the inner shell 211 under the action of the ejector rod 23, so that the protruding sound-absorbing cotton can form a sound trap for noise, the noise filtering is improved, meanwhile, when the filter element 3 is arranged in the inner shell 211, the second outer shell 21 is not matched with the first outer shell 1 in a threaded manner, the ejector rod 23 does not eject the sound-absorbing cotton, the replacement of the filter element 3 is facilitated, namely the noise reduction is only needed when the air filter operates, the noise generated when the air flow filter element 3 can be effectively filtered, but if the sound-absorbing cotton is always in a protruding state, the protruding sound-absorbing cotton can be contacted with the side wall of the filter element 3, the noise can be very troublesome when the filter element 3 is taken out and placed, even if the filter element 3 is placed in the inner shell 211, the sound-absorbing cotton can be worn out, and the sound-absorbing cotton 22 can be damaged when the air flow filter element is used for a long time, and thus cannot effectively absorb noise. Since the first housing 1 and the second housing 21 are screw-fitted, after screwing the second housing 21 onto the first housing 1, the fixing is required by the fixing means 26, so that the first housing 1 and the second housing 21 are ensured not to come loose during operation.
Referring to fig. 3 and 4: the transmission 24 includes a toothed ring 241, a gear 242, a worm 243, a worm gear 244, and a limit assembly 245; the toothed ring 241 is fixedly arranged on the inner wall of the second housing 21 along the axis of the second housing 21, and the toothed ring 241 is positioned on one side of the circular ring 212; the gears 242 are arranged, the gears 242 are uniformly arranged on one side of the circular ring 212, which is close to the toothed ring 241, around the axis of the toothed ring 241, and the gears 242 are meshed with the toothed ring 241; the worm 243 is fixedly arranged at the end of the gear 242 along the axis of the gear 242; the worm gears 244 are arranged in a plurality of groups, each group corresponds to the worm 243 one by one, the worm gears 244 in each group are meshed with the worm 243, the worm gears 244 in each group are uniformly distributed along the axis direction of the worm 243, the worm gears 244 are provided with through grooves along the axis of the worm gears 244, the ejector rod 23 is arranged in the through grooves in a penetrating manner along the length direction of the through grooves in a penetrating manner, and the ejector rod 23 is in threaded fit with the worm gears 244; a limit assembly 245 is provided on the inner housing 211, the limit assembly 245 limiting rotation of the ejector rod 23 about the axis of the worm wheel 244.
The axis of the worm gear 244 is parallel to the radial direction of the second housing 21, when the first housing 1 and the second housing 21 are in threaded engagement, the limiting device 25 in the first housing 1 contacts with the circular ring 212 and limits the circular ring 212 to rotate around the axis of the second housing 21, when the second housing 21 rotates, the circular ring 212 rotates relatively with the second housing 21, the second housing 21 is fixedly connected with the toothed ring 241, the toothed ring 241 rotates under the driving of the second housing 21, the toothed ring 241 is meshed with the gear 242, the toothed ring 241 drives the gear 242 to rotate, the worm 243 fixedly arranged on the gear 242 is driven, the worm 243 drives the worm gear 244 to rotate, and the worm gear 244 drives the ejector rod 23 to slide along the radial direction of the second housing 21 under the action of the limiting component 245, so that the ejector rod 23 can eject the soundproof cotton 22.
Referring to fig. 6: the soundproof cotton 22 is provided with a plurality of layers, and a second gap is formed between adjacent soundproof cotton 22 when the ejector rod 23 is ejected.
When the air filter operates, after the air passes through the filter element 3 in the inner shell 211 to generate noise, the noise is transmitted towards the soundproof cotton 22, the noise is generated by vibration, and the energy of the sound is greatly reduced by switching transmission in different transmission media, so that after the soundproof cotton 22 is arranged into a plurality of layers, the noise is switched back and forth in the soundproof cotton 22 and the second gap, and the purpose of reducing the sound is achieved.
Referring to fig. 2 and 5: the limiting device 25 comprises a partition 251, a first spring 252, a limiting block 253 and a clamping groove; the partition plate 251 has an annular structure, and the partition plate 251 is fixedly arranged on the inner wall of the first shell 1 along the axis of the shell; the limiting block 253 is arranged on one side of the partition 251, close to the second shell 21, along the axis of the first shell 1 in a sliding manner, and a first gap is reserved between the limiting block 253 and the partition 251; the first spring 252 is arranged in the first gap, and two ends of the first spring 252 are fixedly connected with the limiting block 253 and the partition plate 251 respectively; the clamping groove penetrates through the side wall of the circular ring 212 along the axis of the second shell 21, and is matched with the limiting block 253 in a clamping mode.
When the second housing 21 approaches the first housing 1, the stopper 253 on the first housing 1 needs to be aligned with the clamping groove on the ring 212, and then the stopper 253 is inserted into the clamping groove, so that the stopper 253 and the clamping groove are clamped, and when the second housing 21 rotates, the ring 212 and the second housing 21 rotate relatively.
Referring to fig. 7 and 11: the sound insulation device 2 further comprises an anti-rotation device 27, the anti-rotation device 27 comprising a groove 271, an anti-rotation block 272 and a second spring 273; grooves 271 are formed along the axis of the second housing 21 on one side of the toothed ring 241 near the ring 212; the anti-rotation block 272 is slidably arranged in the groove 271 along the extending direction of the groove 271, a second gap is reserved between the anti-rotation block 272 and the bottom of the groove 271, and the anti-rotation block 272 is in clamping fit with the clamping groove; the second spring 273 is disposed in the second gap, two ends of the second spring 273 are fixedly connected with the anti-rotation block 272 and the bottom of the groove 271, respectively, and the elastic force of the first spring 252 is greater than that of the second spring 273.
In order to prevent the relative rotation between the ring 212 and the second housing 21, when the second housing 21 is not in threaded engagement with the first housing 1, the anti-rotation housing is in clamped engagement with the clamping groove, when the end of the second housing 21 contacts with the end of the first housing 1, the limiting block 253 slides into the clamping groove, and since the elastic force of the first spring 252 is greater than that of the second spring 273, the limiting block 253 extrudes the anti-rotation block 272 from the clamping groove, the anti-rotation block 272 is retracted into the groove 271 under the extrusion of the limiting block 253, at the moment, the limiting block 253 prevents the rotation of the ring 212, and simultaneously, the ring 212 is unlocked from the toothed ring 241, so that the ring 212 can rotate relative to the second housing 21.
Referring to fig. 2, 4 and 9: the fixing device 26 includes an extension lug 261, a fixing case 262, a push button 263, a latch 264, and a third spring 265; the extending lug 261 is fixedly arranged on the side wall of the first shell 1, and the extending lug 261 is provided with a jack along the axis of the first shell 1 in a penetrating way; the fixed shell 262 is fixedly arranged on the side wall of the second shell 21, and a working groove is formed in one side of the fixed shell 262, which is close to the extending lug 261; the bolt 264 is arranged in the working groove in a sliding manner along the length direction of the working groove, and a third gap is reserved between the bolt 264 and the end part of the working groove; the push button 263 is fixedly arranged on the bolt 264; the third spring 265 is disposed in the third gap, and both ends of the third spring 265 are fixedly disposed on the ends of the plug pin 264 and the working groove, respectively.
When the first casing 1 and the second casing 21 are about to be in threaded engagement, the push button 263 needs to be pushed at this time, so that the plug pin 264 is retracted into the fixed casing 262, the third spring 265 is compressed, and when the first casing 1 and the second casing 21 are in threaded engagement, the push button 263 is released, so that the third spring 265 drives the plug pin 264 to be inserted into the insertion hole of the extension lug 261, and thus the first casing 1 and the second casing 21 cannot be loosened.
Referring to fig. 5: the stop 25 also includes a guide rod 254; the cross section of the guide rod 254 is of a non-circular structure, the guide rod 254 is fixedly arranged on one side of the limiting block 253, which is far away from the clamping groove, along the axis of the first spring 252, and the guide rod 254 penetrates through the partition plate 251 and is in sliding fit with the partition plate 251.
The stopper 253 can always slide along the axial direction of the first casing 1 under the guide of the guide lever 254.
Referring to fig. 4 and 13: the limiting assembly 245 includes a bump 2451 and a limiting groove 2452; the limiting groove 2452 is formed on the side wall of the ejector rod 23 along the axis of the ejector rod 23; the bump 2451 is fixedly arranged on the inner shell 211, and the bump 2451 is in sliding fit with the limiting groove 2452.
Under the cooperation of the projection 2451 and the limiting groove 2452, the rotation of the ejector rod 23 around the axis of the worm wheel 244 is limited by the cooperation of the projection 2451 and the limiting groove 2452, and the ejector rod 23 can stably slide along the radial direction of the second housing 21.
Referring to fig. 12: the sound insulation device 2 further comprises a cover plate 213; the cover plate 213 has an annular structure, and the cover plate 213 is detachably disposed at one end of the second housing 21 away from the first housing 1.
Replacement of the filter cartridge 3 in the inner housing 211 is accomplished by removing the cover plate 213.
Referring to fig. 12: the sound insulation device 2 further comprises a clamping sleeve 2131; the clamping sleeves 2131 are provided in a plurality, the clamping sleeves 2131 are in one-to-one correspondence with the worms 243, the clamping sleeves 2131 are fixedly arranged on the cover plate 213, and the clamping sleeves 2131 are in rotary fit with the worms 243.
Since the worm 243 needs to have sufficient stability when rotating, the clamping sleeve 2131 is provided on the cover 213, and the clamping sleeve 2131 is inserted into the clamping sleeve 2131 when the cover 213 is installed, so that the clamping sleeve 2131 can support the end of the worm 243 far from the gear 242.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (10)
1. The noise-reduction air filter of the air compressor comprises a first shell (1) and a sound insulation device (2);
the sound insulation device (2) is characterized by comprising a second outer shell (21), an inner shell (211), a circular ring (212), sound insulation cotton (22), an ejector rod (23), a transmission device (24), a limiting device (25) and a fixing device (26);
the first shell (1) is of a cylindrical structure, the second shell (21) is of a tubular structure, the second shell (21) is arranged on one side of the first shell (1) along the axis of the first shell (1), and one end of the second shell (21) is in threaded fit with one end of the first shell (1);
the inner shell (211) is arranged in the second outer shell (21) along the axis of the second outer shell (21), a first gap is reserved between the inner shell (211) and the second outer shell (21), the first gap is of an annular structure, and the filter element (3) is arranged in the inner shell (211);
the circular ring (212) is arranged on one side, close to the first shell (1), of the second shell (21) along the axis of the second shell (21), and the circular ring (212) is in rotating fit with the second shell (21);
the plurality of ejector rods (23) are arranged, the ejector rods (23) penetrate through the inner shell (211) along the radial direction of the second outer shell (21), the ejector rods (23) are in sliding fit with the inner shell (211), and the ejector rods (23) are uniformly distributed on the inner shell (211) around the axis of the second outer shell (21);
the sound-absorbing cotton covers one end of the ejector rod (23) positioned at the inner side of the inner shell (211), the sound-absorbing cotton is ejected when the ejector rod (23) moves towards the inner side of the inner shell (211), and the side edges of the sound-absorbing cotton positioned at the two sides of the ejector rod (23) are fixedly connected with the inner wall of the inner shell (211);
the transmission device (24) is arranged on one side of the ejector rod (23), and the ejector rod (23) is driven to slide along the radial direction of the second shell (21) through the transmission device (24) after the second shell (21) rotates;
the limiting device (25) is arranged in the first shell (1), and the limiting device (25) limits the rotation of the circular ring (212) when the first shell (1) and the second shell (21) are in threaded fit;
the fixing device (26) is respectively arranged on the first shell (1) and the second shell (21), and the first shell (1) and the second shell (21) are fixed through the fixing device (26) after screw thread matching is completed.
2. The noise reduction type air filter of the air compressor according to claim 1, wherein the transmission device (24) comprises a toothed ring (241), a gear (242), a worm (243), a worm wheel (244) and a limiting assembly (245);
the toothed ring (241) is fixedly arranged on the inner wall of the second shell (21) along the axis of the second shell (21), and the toothed ring (241) is positioned on one side of the circular ring (212);
the gears (242) are arranged, the gears (242) are uniformly arranged on one side, close to the toothed ring (241), of the circular ring (212) around the axis of the toothed ring (241), and the gears (242) are meshed with the toothed ring (241);
the worm (243) is fixedly arranged at the end part of the gear (242) along the axis of the gear (242);
the worm gears (244) are arranged in a plurality of groups, each group of worm gears (244) is in one-to-one correspondence with the worm (243), the worm gears (244) in each group are meshed with the worm (243), the worm gears (244) in each group are uniformly distributed along the axis direction of the worm (243), the worm gears (244) are provided with through grooves along the axis of the worm gears (244), the ejector rod (23) is arranged in the through grooves in a penetrating manner along the length direction of the through grooves in a penetrating manner, and the ejector rod (23) is in threaded fit with the worm gears (244);
the limiting component (245) is arranged on the inner shell (211), and the limiting component (245) limits the rotation of the ejection rod (23) around the axis of the worm wheel (244).
3. A noise-reducing air filter for an air compressor according to claim 1, wherein the soundproof cotton (22) is provided with a plurality of layers, and a second gap is formed between adjacent soundproof cotton (22) when the ejector rod (23) is ejected.
4. The noise reduction type air filter of the air compressor according to claim 1, wherein the limiting device (25) comprises a partition plate (251), a first spring (252), a limiting block (253) and a clamping groove;
the partition plate (251) is of an annular structure, and the partition plate (251) is fixedly arranged on the inner wall of the first shell (1) along the axis of the shell;
the limiting block (253) is arranged on one side, close to the second shell (21), of the partition board (251) along the axis of the first shell (1) in a sliding manner, and a first gap is reserved between the limiting block (253) and the partition board (251);
the first spring (252) is arranged in the first gap, and two ends of the first spring (252) are fixedly connected with the limiting block (253) and the partition plate (251) respectively;
the clamping groove is formed in the side wall of the circular ring (212) in a penetrating mode along the axis of the second housing (21), and is matched with the limiting block (253) in a clamping mode.
5. The noise reduction type air filter of an air compressor according to claim 4, wherein the sound insulation device (2) further comprises an anti-rotation device (27), and the anti-rotation device (27) comprises a groove (271), an anti-rotation block (272) and a second spring (273);
the groove (271) is formed on one side of the toothed ring (241) close to the circular ring (212) along the axis of the second shell (21);
the anti-rotation block (272) is arranged in the groove (271) in a sliding manner along the extending direction of the groove (271), a second gap is reserved between the anti-rotation block (272) and the bottom of the groove (271), and the anti-rotation block (272) is in clamping fit with the clamping groove;
the second spring (273) is arranged in the second gap, two ends of the second spring (273) are fixedly connected with the anti-rotation block (272) and the bottom of the groove (271) respectively, and the elastic force of the first spring (252) is larger than that of the second spring (273).
6. The noise reduction type air filter of the air compressor according to claim 1, wherein the fixing device (26) comprises an extension lug (261), a fixing shell (262), a push button (263), a latch (264) and a third spring (265);
the extension lug (261) is fixedly arranged on the side wall of the first shell (1), and the extension lug (261) is provided with a jack in a penetrating way along the axis of the first shell (1);
the fixed shell (262) is fixedly arranged on the side wall of the second shell (21), and a working groove is formed in one side, close to the extending lug (261), of the fixed shell (262);
the bolt (264) is arranged in the working groove in a sliding manner along the length direction of the working groove, and a third gap is reserved between the bolt (264) and the end part of the working groove;
the push button (263) is fixedly arranged on the bolt (264);
the third spring (265) is arranged in the third gap, and two ends of the third spring (265) are respectively and fixedly arranged on the end parts of the bolt (264) and the working groove.
7. The noise reduction type air filter of the air compressor as claimed in claim 4, wherein the limiting device (25) further comprises a guide rod (254);
the section of the guide rod (254) is of a non-circular structure, the guide rod (254) is fixedly arranged on one side, far away from the clamping groove, of the limiting block (253) along the axis of the first spring (252), and the guide rod (254) penetrates through the partition plate (251) and is in sliding fit with the partition plate (251).
8. The noise reduction type air filter of the air compressor according to claim 2, wherein the limiting assembly (245) comprises a bump (2451) and a limiting groove (2452);
the limiting groove (2452) is formed in the side wall of the ejector rod (23) along the axis of the ejector rod (23);
the protruding block (2451) is fixedly arranged on the inner shell (211), and the protruding block (2451) is in sliding fit with the limiting groove (2452).
9. A noise-reducing air filter for an air compressor according to claim 2, wherein the sound-insulating means (2) further comprises a cover plate (213);
the cover plate (213) is of an annular structure, and the cover plate (213) is detachably arranged at one end, far away from the first housing (1), of the second housing (21).
10. The noise reduction type air filter of the air compressor according to claim 9, wherein the sound insulation device (2) further comprises a clamping sleeve (2131);
the clamping sleeves (2131) are arranged in a plurality, the clamping sleeves (2131) are in one-to-one correspondence with the worms (243), the clamping sleeves (2131) are fixedly arranged on the cover plate (213), and the clamping sleeves (2131) are in rotary fit with the worms (243).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311472055.8A CN117212107B (en) | 2023-11-07 | 2023-11-07 | Noise reduction type air filter of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311472055.8A CN117212107B (en) | 2023-11-07 | 2023-11-07 | Noise reduction type air filter of air compressor |
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| Publication Number | Publication Date |
|---|---|
| CN117212107A true CN117212107A (en) | 2023-12-12 |
| CN117212107B CN117212107B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311472055.8A Active CN117212107B (en) | 2023-11-07 | 2023-11-07 | Noise reduction type air filter of air compressor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107564506A (en) * | 2017-09-28 | 2018-01-09 | 南京极佳物联网科技有限公司 | A kind of industrial small size sound insulation closure assembly |
| CN112483366A (en) * | 2020-11-27 | 2021-03-12 | 苏州牧风压缩机设备有限公司 | Air compressor air filter capable of reducing noise |
| CN212803497U (en) * | 2020-06-16 | 2021-03-26 | 江苏大翔科技有限公司 | Prevent muffler for compressed air drying machine of jam |
| CN213808013U (en) * | 2020-12-14 | 2021-07-27 | 天津净明科技有限公司 | Air compressor machine air cleaner mounting structure |
| CN219865423U (en) * | 2023-02-21 | 2023-10-20 | 重庆德睿能源装备有限公司 | Air compressor machine subassembly that admits air |
-
2023
- 2023-11-07 CN CN202311472055.8A patent/CN117212107B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107564506A (en) * | 2017-09-28 | 2018-01-09 | 南京极佳物联网科技有限公司 | A kind of industrial small size sound insulation closure assembly |
| CN212803497U (en) * | 2020-06-16 | 2021-03-26 | 江苏大翔科技有限公司 | Prevent muffler for compressed air drying machine of jam |
| CN112483366A (en) * | 2020-11-27 | 2021-03-12 | 苏州牧风压缩机设备有限公司 | Air compressor air filter capable of reducing noise |
| CN213808013U (en) * | 2020-12-14 | 2021-07-27 | 天津净明科技有限公司 | Air compressor machine air cleaner mounting structure |
| CN219865423U (en) * | 2023-02-21 | 2023-10-20 | 重庆德睿能源装备有限公司 | Air compressor machine subassembly that admits air |
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| Publication number | Publication date |
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| CN117212107B (en) | 2024-03-12 |
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