CN214063312U - Low-noise vortex type air pump - Google Patents

Abstract

The utility model discloses a low noise vortex formula air pump, include the base, locate casing, motor, intake pipe, outlet duct on the base, be used for making an uproar to fall the device of making an uproar and be used for absorbing damping device, its characterized in that: the noise reduction device comprises an outer cylinder embedded in the air inlet pipe and the air outlet pipe, an inner cylinder arranged in the outer cylinder, an installation component used for detachably fixing the inner cylinder in the outer cylinder, sound absorption cotton coated on the outer wall of the inner cylinder and a fixing cover used for fixedly installing the outer cylinder; the noise generated in the air inlet pipe and the air outlet pipe can be absorbed by the arrangement of the silencing cotton, so that the noise is effectively reduced, and the silencer is suitable for more low-noise environments; and through dismantling fixedly of inner tube and urceolus, take out when conveniently taking out the inner tube inhale the sound cotton, conveniently inhale the cotton change of sound.

Description

Low-noise vortex type air pump

Technical Field

The utility model belongs to the technical field of high pressure positive blower, especially, relate to a low noise vortex formula air pump.

Background

The vortex air pump is a ventilation air source for blowing air and is mainly used for conveying, feeding, collecting and the like of air; the impeller of the vortex air pump consists of a plurality of blades, and is similar to the impeller of a huge gas turbine. The air in the middle of the impeller blade is acted by centrifugal force and moves to the edge of the impeller, and the air enters the annular cavity of the pump body and is recirculated from the starting point of the blade in the same way; the circulating air flow generated by the rotation of the impeller leaves the air pump with extremely high energy for use.

In the working process of the air pump, larger noise is generated, and the air pump is not suitable for working environments with decibel limitation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a low noise vortex formula air pump that function of making an uproar is good falls.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a low noise vortex formula air pump, includes the base, locates casing, motor, intake pipe, outlet duct on the base, be used for making an uproar and fall the device of making an uproar and be used for absorbing damping device, its characterized in that: the noise reduction device comprises an outer barrel embedded in the air inlet pipe and the air outlet pipe, an inner barrel arranged in the outer barrel, an installation component used for detachably fixing the inner barrel in the outer barrel, and a fixing cover used for fixedly installing the outer barrel, wherein the sound absorption cotton is coated on the outer wall of the inner barrel.

The noise generated in the air inlet pipe and the air outlet pipe can be absorbed by the arrangement of the silencing cotton, so that the noise is effectively reduced, and the silencer is suitable for more low-noise environments; and through dismantling fixedly of inner tube and urceolus, take out when conveniently taking out the inner tube inhale the sound cotton, conveniently inhale the cotton change of sound.

Preferably, the inner tube comprises an inner tube, an outer tube and a reflection cavity arranged between the inner tube and the outer tube, the side walls of the inner tube and the outer tube are provided with a plurality of sound transmission holes, and the sound transmission holes are arranged in a staggered manner.

Through the multilayer setting of inner tube and the crisscross setting of sound transmission hole, make partial sound wave wear to establish in the sound transmission hole, and the reciprocal reflection in the reflection intracavity to produce the friction with the space of sound transmission hole, another part sound wave can be absorbed by inhaling the sound cotton gradually, thereby consume partial sound energy gradually and turn into heat energy, further improve the noise reduction effect of the device of making an uproar of falling.

Preferably, the air inlet pipe and the air outlet pipe are respectively provided with a mounting groove, the outer cylinder is embedded in the mounting grooves, the mounting assembly comprises steel balls embedded at the bottom of the inner cylinder, a mounting hole formed at the bottom of the mounting groove and a mounting cover for fixing the inner cylinder in the outer cylinder, the depth of the mounting hole is gradually increased along the spiral direction, and the steel balls can be matched in the mounting hole and roll relatively and are finally clamped in the deepest part of the mounting hole; the inner bottom end face of the mounting cover is abutted against the end face of the inner cylinder, and the outer bottom end face of the mounting cover is abutted against the inner bottom face of the fixing cover; the fixed cover is arranged on one end face of the outer cylinder, located outside the air inlet pipe and the air outlet pipe, and is in threaded fixation with one end of the air inlet pipe and the air outlet pipe communicated with the outside.

Through the arrangement of the mounting assembly, the inner cylinder can be quickly mounted and positioned on the outer cylinder and quickly fixed, so that the convenience and the rapidity of the dismounting of the noise reduction device are ensured; because the outer wall of the inner cylinder is coated with the sound-absorbing cotton, and a large-area non-rigid limit exists between the inner cylinder and the outer cylinder, when the inner cylinder is inserted into the bottom, the inner cylinder is easy to deviate, and the accurate position of installation can be determined through the spiral matching of the steel balls and the installation holes through hand feeling, so that the inner cylinder is quickly installed and fixed in the outer cylinder.

Preferably, the noise reduction device further comprises a sound blocking assembly, the sound blocking assembly comprises a plurality of sound blocking plates arranged in the inner cylinder, a sound blocking shaft penetrating through the sound blocking plates and a fixing member used for detachably fixing the sound blocking plates in the inner cylinder, vent holes allowing air flow to pass through are formed in the sound blocking plates, and the vent holes of the adjacent sound blocking plates are arranged in a staggered interference mode.

The noise can be further absorbed by the arrangement of the sound blocking component, and the noise reduction effect of the air pump is improved; in the process of air flow passing, a part of sound waves pass through the vent holes along with the air flow and rub with the pores of the vent holes, the sound energy is converted into heat energy to be dissipated, the other part of sound waves is blocked by the sound blocking plate to be reflected, and the sound energy enters the reflecting cavity through the sound transmitting holes, and is consumed and absorbed.

Preferably, the fixing member comprises a plurality of movable grooves formed in the sound blocking plate, fixing rods arranged in the movable grooves and fixing grooves formed in the inner wall of the inner cylinder, one end of each fixing rod is hinged to the sound blocking shaft, and the other end of each fixing rod can be inserted into the corresponding fixing groove in a matched mode.

Through the setting of fixed component, but quick assembly disassembly hinder the soundboard to conveniently hinder the clearance and the maintenance of soundboard, guarantee the noise reduction effect of device of making an uproar falls.

Preferably, the sound-absorbing cotton is also embedded in the sound-blocking shaft, and a plurality of shaft holes used for communicating the sound-absorbing cotton with the inner cavity of the inner barrel are formed in the outer wall of the sound-blocking shaft.

Through the setting of the sound absorption cotton in the sound blocking shaft, the noise reduction effect of the noise reduction device can be further enhanced.

Preferably, the oral area of urceolus is equipped with the filter plate that is used for blockking the dust and gets into, the filter plate includes the side wall board, locates the mainboard of side wall board central authorities, set up in filtering holes on the mainboard and be used for with mainboard swing joint in shake subassembly on the side wall board, shake the subassembly including inlaying locate shake the pearl on the mainboard lateral wall, set up in shake hole on the inner wall of side wall board and locate shake downthehole shake spring, shake spring one end butt in the shake hole is close to on the lateral wall of inner tube, one end butt in shake on the pearl.

Through the arrangement of the filter plate, dust can be prevented from entering the air pump while ventilation is ensured, and the normal work of the air pump is ensured; simultaneously, through the setting of shake subassembly, can adsorb the mainboard and compress the shake spring when the air pump during operation, during the stop work, because the effect of shake spring, shake pearl reverse motion striking side wall board, produce the vibration, shake off the sedimentary dust on the filter plate, guarantee the ventilation effect of filter plate.

Preferably, the damping device comprises a fixed frame arranged below the base and a plurality of damping assemblies arranged between the fixed frame and the base, each damping assembly comprises a limiting shaft penetrating the fixed frame, a damping spring sleeved on the limiting shaft, two fixed tables symmetrically arranged on the fixed frame, two movable tables symmetrically arranged on the fixed tables, a guide member for guiding the movable tables to move relative to the fixed tables and an obstruction member for obstructing the movement of the movable table assembly away from the fixed tables, the contact surfaces of the movable tables and the fixed tables are inclined planes, each obstruction member comprises an obstruction hole arranged on the opposite side surfaces of the two movable tables and an obstruction spring arranged in the obstruction hole, and the two ends of each obstruction spring are fixedly connected to the hole walls of the two movable holes respectively; the guide member is including locating the guide way of activity platform bottom and locating the direction platform at fixed station top, the guide way can cooperate the joint in on the direction platform, just the direction platform relative guide way relative displacement.

Through damping device's setting, will damping spring's elastic potential energy conversion meeting the friction of activity platform and fixed station produces heat energy and hinders the horizontal elastic potential energy of spring to realize the shock attenuation effect, further reduce the noise that the air pump vibration produced, guarantee air pump moving low noise.

To sum up, the utility model has the advantages of it is following: the noise is effectively reduced through the arrangement of the noise reduction device, so that the noise reduction device is suitable for more low-noise environments; the sound-absorbing cotton is convenient to disassemble and replace by the detachable fixation of the inner cylinder and the outer cylinder; through damping device's setting, realize the shock attenuation effect, further reduce the noise that the air pump vibration produced, guarantee air pump moving low noise.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the rear view structure of the present invention.

Fig. 3 is a schematic sectional view of the present invention.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Fig. 5 is a partially enlarged view of B in fig. 4.

Fig. 6 is a partially enlarged view at C in fig. 4.

Fig. 7 is a partial enlarged view of fig. 3 at D.

Fig. 8 is a second schematic sectional view of the present invention.

Fig. 9 is a partial enlarged view of fig. 8 at H.

Fig. 10 is a partial structural view of the damper device.

Detailed Description

As shown in fig. 1-10, a low-noise vortex air pump includes a base 1, a casing 11, a motor 12, an air inlet pipe 13, an air outlet pipe 14, a noise reduction device and a damping device, wherein the casing 11 is fixedly connected to the base 1, the motor 12 is a common motor 12, the common motor 12 is fixed on the casing 11 by screw threads, and the air inlet pipe 13 and the air outlet pipe 14 are welded on the casing 11.

Further, the noise reduction device comprises an outer cylinder 21, a mounting component, sound absorption cotton 23, a fixing cover 24 and a sound blocking component, wherein the inner cylinder 22 comprises an inner layer pipe 211, an outer layer pipe 212 and a reflection cavity 213, and the reflection cavity 213 is arranged between the inner layer pipe 211 and the outer layer pipe 212; a plurality of sound transmission holes 25 are formed in the side walls of the inner layer pipe 211 and the outer layer pipe 212, and the sound transmission holes 25 of the inner layer pipe and the outer layer pipe are arranged in a staggered mode; the outer wall of the outer layer pipe 212 is coated with the sound-absorbing cotton 23, a metal column 231 for fixing is inserted into the sound-absorbing cotton 23, and the metal column 231 is fixedly connected to the inner cylinder 22.

Further, the air inlet pipe 13 and the air outlet pipe 14 are both provided with mounting grooves 26, the outer cylinder 21 is embedded in the mounting grooves 26, the mounting assembly includes a steel ball 261, a mounting hole 262 and a mounting cover 263, the steel ball 261 is embedded in the outer wall of the outer layer pipe 212, the mounting hole 262 is opened in the inner wall of the mounting groove 26, the depth of the mounting hole 262 is gradually increased along the spiral direction, and the steel ball 261 can be matched in the mounting hole 262 and roll relatively, and is finally clamped in the deepest part of the mounting hole 262.

Further, the inner bottom surface of the mounting cover 263 abuts against the end surface of the inner cylinder 22, and the outer bottom surface abuts against the inner bottom surface of the fixed cover 24; the fixed cover 24 is covered on the end face of the outer cylinder 21 at one end outside the air inlet pipe 13 and the air outlet pipe 14, and is fixed on one end of the air inlet pipe 13 and the air outlet pipe 14 communicated with the outside through threads.

Specifically, the sound blocking assembly comprises a plurality of sound blocking plates 31, a sound blocking shaft 32 and a fixing component, wherein the sound blocking shaft 32 is arranged in the inner cylinder 22, the plurality of sound blocking plates 31 are uniformly sleeved on the sound blocking shaft along the shaft, vent holes 331 are formed in the sound blocking plates 31, and the vent holes 331 of the adjacent sound blocking plates 31 are arranged in a staggered interference mode.

Further, the fixing member includes a plurality of movable grooves 41, a fixing rod 42 and fixing grooves 43, the movable grooves 41 are opened on the side wall of the sound-blocking plate 31 and three movable grooves are uniformly opened along the circumferential direction of the sound-blocking plate 31; the fixing rod 42 is inserted into the movable groove 41, one end of the fixing rod is hinged to the sound blocking shaft 32, and the other end of the fixing rod is inserted into the movable groove 41 and is inserted into the fixing groove 43 in a matching manner.

Furthermore, sound absorption cotton 23 is also embedded in the sound blocking shaft 32, and a plurality of shaft holes are formed in the outer wall of the sound blocking shaft 32 and communicated with the inner cylinder 22.

Specifically, a filter plate 5 is arranged at the opening of the inner cylinder 22, the filter plate 5 includes a side wall plate 51, a main plate 52, a filter hole 53 and a shaking component, and the side wall plate 51 is pressed against the end of the inner cylinder 22 by the mounting cover 263; the filtering hole 53 is formed in the main plate 52, and the main plate 52 is movably connected to the inside of the side wall plate 51 through the shaking assembly; the shaking assembly comprises a shaking bead 551, a shaking hole 552 and a shaking spring 553, wherein the shaking bead 551 is embedded on the side wall of the main plate 52, the shaking hole 552 is arranged on the inner wall of the side wall plate 51, the shaking spring 553 is positioned in the shaking hole 552, one end of the shaking spring is abutted on the side wall of the shaking hole 552 close to the inner cylinder 22, and the other end of the shaking spring is abutted on the shaking bead 551.

Further, the damping device comprises a fixing frame 61 and a plurality of damping components, the fixing frame 61 is connected below the base 1 through the damping components, and the damping components are uniformly arranged at the four corners close to the base 1; the damping assembly comprises a limiting shaft 62, a damping spring 621, two fixed tables 63, two movable tables 64, a guide member and a blocking member, wherein the blocking member comprises a blocking hole 65 and a blocking spring 66, and the guide member comprises a guide groove 67 and a guide table 68; the fixed table 63 is fixedly connected to the fixed seat, the top of the fixed table is arranged in an inclined plane and is provided with a guide table 68, and the inclined planes of the two fixed tables 63 are arranged oppositely; the bottom of the movable table 64 is also arranged in an inclined plane, a guide table 68 is arranged on the movable table, and the inclined planes of the two fixed tables 63 are oppositely arranged; the inclined surfaces of the movable table 64 and the fixed table 63 are correspondingly attached, the guide groove 67 can be clamped on the guide table 68 in a matching manner, and the guide table 68 can relatively move relative to the guide groove 67; the blocking holes 65 are formed in the opposite side walls of the two movable tables 64, and the blocking springs 66 are fixedly connected to the bottom surfaces of the holes of the two blocking holes 65 respectively; spacing 62 one end rigid coupling in base 1 bottom, one end wear to establish in the mount 61, spacing 62 is located between activity platform 64 and the fixed station 63, the cover is equipped with on it damping spring 621, damping spring 621 one end butt in base 1 bottom, one end butt in the top of activity platform 64.

The specific implementation manner of the utility model is as follows: when the air pump works, a part of sound waves pass through the vent holes 331 along with the air flow and rub with the pores of the vent holes 331, the sound energy is converted into heat energy to be dissipated, and a part of sound energy is directly absorbed by the sound absorption cotton 23 in the sound blocking shaft 32; a part of the reflected light is blocked by the sound blocking plate 31 and enters the reflecting cavity 213 through the sound transmitting hole 25, and is reflected back and forth in the reflecting cavity 213, and generates friction with a gap of the sound transmitting hole 25, and is gradually consumed and converted into heat energy; part of sound waves can be absorbed by the flying sound-absorbing cotton 23 coated outside the inner cylinder 22, so that the effect of reducing grooves is achieved; meanwhile, when the air pump vibrates, the base 1 is pressed downwards to abut against the damping spring 621, meanwhile, the movable block moves relatively along the inclined plane of the fixed table 63 under the guide of the guide groove 67 and the wire table, and simultaneously pulls the blocking spring 66 to convert the elastic potential energy of the damping spring 621 into the heat energy generated by the friction between the movable table 64 and the fixed table 63 and the transverse elastic potential energy of the blocking spring 66, so that the damping effect is realized, the noise generated by the vibration of the air pump is further reduced, and the running low noise of the air pump is ensured.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all 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.

Claims (8)

1. The utility model provides a low noise vortex formula air pump, includes base (1), locates casing (11), motor (12), intake pipe (13), outlet duct (14) on base (1), be used for making an uproar and fall the device of making an uproar and be used for absorbing damping device, its characterized in that: the noise reduction device comprises an outer cylinder (21) embedded in the air inlet pipe (13) and the air outlet pipe (14), an inner cylinder (22) arranged in the outer cylinder (21), an installation assembly used for detachably fixing the inner cylinder (22) in the outer cylinder (21), sound absorption cotton (23) coated on the outer wall of the inner cylinder (22) and a fixing cover (24) fixedly installed on the outer cylinder (21).

2. The low noise scroll air pump according to claim 1, wherein: the inner tube (22) comprises an inner tube (211), an outer tube (212) and a reflection cavity (213) arranged between the inner tube (211) and the outer tube (212), a plurality of sound transmission holes (25) are formed in the side walls of the inner tube (211) and the outer tube (212), and the sound transmission holes (25) are arranged in a staggered mode.

3. The low noise scroll air pump according to claim 1, wherein: the air inlet pipe (13) and the air outlet pipe (14) are internally provided with mounting grooves (26), the outer cylinder (21) is embedded in the mounting grooves (26), the mounting assembly comprises steel balls (261) embedded at the bottom of the inner cylinder (22), a mounting hole (262) arranged at the bottom of the mounting groove (26) and a mounting cover (263) for fixing the inner cylinder (22) in the outer cylinder (21), the depth of the mounting hole (262) is gradually increased along the spiral direction, and the steel balls (261) can be matched in the mounting hole (262) and roll relatively and are finally clamped in the deepest part of the mounting hole (262); the inner bottom end face of the mounting cover (263) is pressed against the end face of the inner cylinder (22), and the outer bottom end face of the mounting cover (263) is pressed against the inner bottom face of the fixed cover (24); the fixed cover (24) is covered on one end face of the outer cylinder (21) positioned outside the air inlet pipe (13) and the air outlet pipe (14), and is fixed on one end of the air inlet pipe (13) and the air outlet pipe (14) communicated with the outside through threads.

4. The low noise scroll air pump according to claim 1, wherein: the noise reduction device further comprises a sound blocking assembly, the sound blocking assembly comprises a plurality of sound blocking plates (31) arranged in the inner cylinder (22), sound blocking shafts (32) penetrating the sound blocking plates (31) and fixing members used for detachably fixing the sound blocking plates (31) in the inner cylinder (22), vent holes (331) allowing air flow to pass through are formed in the sound blocking plates (31), and the vent holes (331) of the adjacent sound blocking plates (31) are arranged in a staggered interference mode.

5. The low noise scroll air pump according to claim 4, wherein: the fixing component comprises a plurality of movable grooves (41) arranged on the sound blocking plate (31), a fixing rod (42) arranged in the movable grooves (41) and a fixing groove (43) arranged on the inner wall of the inner cylinder (22), one end of the fixing rod (42) is hinged on the sound blocking shaft (32), and the other end of the fixing rod can be inserted in the fixing groove (43) in a matching mode.

6. The low noise scroll air pump according to claim 4, wherein: the sound-absorbing cotton (23) is also embedded in the sound-blocking shaft (32), and a plurality of shaft holes for communicating the sound-absorbing cotton (23) with the inner cavity of the inner cylinder (22) are formed in the outer wall of the sound-blocking shaft (32).

7. The low noise scroll air pump according to claim 1, wherein: the mouth of the outer cylinder (21) is provided with a filter plate (5) for blocking dust from entering, the filter plate (5) comprises a side wall plate, a main plate (52) arranged at the center of the side wall plate (51), a filter hole (53) arranged on the main plate (52) and a shaking component for movably connecting the main plate (52) to the side wall plate (51), the shaking component comprises shaking beads (551) embedded on the side wall of the main plate (52), shaking holes (552) arranged on the inner wall of the side wall plate (51) and shaking springs (553) arranged in the shaking holes (552), one end of each shaking spring (553) is abutted to the side wall of the shaking hole (552) close to the inner cylinder (22), and the other end of each shaking spring (553) is abutted to the shaking beads (551).

8. The low noise scroll air pump according to claim 1, wherein: the damping device comprises a fixed frame (61) arranged below the base (1) and a plurality of damping components arranged between the fixed frame (61) and the base (1), wherein each damping component comprises a limiting shaft (62) arranged on the fixed frame (61) in a penetrating manner, a damping spring (621) sleeved on the limiting shaft (62), two fixed tables (63) symmetrically arranged on the fixed frame (61), two movable tables (64) symmetrically arranged on the fixed tables (63), a guide member used for guiding the movable tables (64) to move relative to the fixed tables (63) and an obstruction member used for obstructing the movable tables (64) to deviate from movement, the contact surfaces of the movable tables (64) and the fixed tables (63) are inclined planes, the obstruction member comprises obstruction holes (65) arranged on the opposite side surfaces of the two movable tables (64) and obstruction springs (66) arranged in the obstruction holes (65), two ends of the blocking spring (66) are fixedly connected to the hole walls of the two movable holes respectively; the guide member comprises a guide groove (67) arranged at the bottom of the movable table (64) and a guide table (68) arranged at the top of the fixed table (63), the guide groove (67) can be clamped on the guide table (68) in a matching manner, and the guide table (68) can relatively move relative to the guide groove (67).

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