CN113670399A - Damping and noise-proof waist wheel flowmeter - Google Patents
Damping and noise-proof waist wheel flowmeter Download PDFInfo
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- CN113670399A CN113670399A CN202110918636.4A CN202110918636A CN113670399A CN 113670399 A CN113670399 A CN 113670399A CN 202110918636 A CN202110918636 A CN 202110918636A CN 113670399 A CN113670399 A CN 113670399A
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- 238000013016 damping Methods 0.000 title claims abstract description 22
- 239000000872 buffer Substances 0.000 claims abstract description 69
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 230000035939 shock Effects 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 abstract description 20
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
- G01F15/185—Connecting means, e.g. bypass conduits
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a damping and noise-preventing waist wheel flowmeter, which belongs to the technical field of flowmeters and comprises a display unit assembly, wherein the rear part of the display unit assembly is provided with a front end cover, an oil throwing sheet is arranged inside the front end cover, a magnetic coupling connector is arranged inside the front end cover, the rear part of the magnetic coupling connector is connected with a bearing, the bearing is sleeved on the upper part of a front wall plate, one end of the bearing is connected with a waist wheel assembly, the waist wheel assembly is arranged inside a shell, the upper part of the shell is provided with an upper fixing plate, and the bottom of the shell is provided with a lower fixing plate. According to the invention, the absorption and buffering of the transverse and vertical stress of the flowmeter are realized through the upper buffer plates arranged on four sides inside the upper fixing plate and the vertical buffer springs between the upper internal threads and the lower internal threads, so that the effects of fully reducing vibration in operation, reducing noise pollution and prolonging the service life are achieved; the portable user hand-held flow meter is convenient to use through the handles arranged on the two sides of the shell, and is convenient to use when being moved.
Description
Technical Field
The invention relates to the technical field of flowmeters, in particular to a damping and noise-proof waist wheel flowmeter.
Background
The gas waist wheel flowmeter is a volumetric meter for measuring the flow of gas medium in closed pipeline. The gas metering device has the characteristics of high precision, wide range, small volume, light weight, convenient installation and maintenance, reliable use, durable service life and the like, is widely applied to the trade metering of town gas, and is particularly suitable for the trade metering of gas consumers such as organs, schools, enterprises and public institutions, hotels, restaurants and the like. It can also be used in the main metering, gas distribution station and main gas supply station of various industrial raw gas.
The gas waist wheel flowmeter is in the operation process, and is large in vibration and noise in operation due to large volume, heavy pressure loss and the like, and the flowmeter is large in volume and inconvenient to move.
The patent of application number for CN201921336442.8 provides a novel gaseous roots flowmeter device, through fixed connection such as fixed connection board, clamping screw and connecting seat, ensures flowmeter and piping erection's stability, reaches the effect of shock attenuation noise control.
While this technique improves the stability of the flow meter to some extent, there are some problems. Firstly, the scheme only performs shock absorption in one direction, and the shock absorption effect needs to be further enhanced; secondly, no special flow meter moving auxiliary device is provided, and the equipment is not convenient to move.
Therefore, it is necessary to provide a vibration-damping and noise-proof waist wheel flowmeter.
Disclosure of Invention
In order to comprehensively solve the problems, particularly the defects in the prior art, the invention provides a damping and noise-proof waist wheel flowmeter which can comprehensively solve the problems. The invention can facilitate the moving use of the flowmeter, reduce the vibration between the flowmeter and the pipeline, improve the running stability of the flowmeter and prolong the service life.
In order to achieve the purpose, the invention adopts the following technical means:
the invention provides a vibration-damping and noise-preventing waist wheel flowmeter which comprises a display unit assembly, wherein the rear part of the display unit assembly is provided with a front end cover, an oil throwing sheet is arranged inside the front end cover, a magnetic coupling connector is arranged inside the front end cover, the rear part of the magnetic coupling connector is connected with a bearing, the bearing is sleeved on the upper part of a front wall plate, one end of the bearing is connected with a waist wheel assembly, the waist wheel assembly is arranged inside a shell, the upper part of the shell is provided with an upper fixing plate, and the bottom of the shell is provided with a lower fixing plate.
In this embodiment, after the gas enters the housing of the waist wheel flowmeter, a pressure difference is formed in the housing, so that the waist wheel assembly rotates, the volume of the gas is the sum of fixed volumes removed by four times through the housing in each rotation period, the rotation speed of the waist wheel assembly is in direct proportion to the gas flowing through, and the rotation of the waist wheel assembly is output to an auxiliary counting and reading unit in the display unit assembly through a magnetic coupling connector for analysis and calculation, and finally displayed in the display unit assembly.
It should be noted that, when being installed, the air inlet pipe is fixedly connected with the upper fixing plate, and the air outlet pipe is fixedly connected with the lower fixing plate. During operation, the upper fixing plate is used for achieving damping and buffering of transverse stress, and noise pollution in the using process of the meter is reduced.
Preferably, an air inlet is formed in the middle of the upper fixing plate, upper fixing holes are formed in the periphery of the air inlet, an upper top plate is arranged on the upper portion of the periphery of the upper fixing plate, an upper buffer plate is arranged at the bottom of the upper top plate, and an upper groove is formed in the upper fixing plate.
When the air inlet pipe fixing device is installed, the upper fixing block is embedded into the upper groove, and the air inlet pipe and the upper fixing plate are conveniently fixed for the first time. When the air inlet buffering device is used, in order to buffer the transverse stress between the metering gauge and the air inlet pipe, the transverse buffering operation is performed through the upper buffering plates arranged on the periphery of the upper fixing plate.
Preferably, a section of the bottom of the upper fixing hole is provided with a lower internal thread, and the lower internal thread on the bottom side in the upper fixing hole is fixedly connected with the buffer bolt.
Preferably, the upper top plate is provided with an upper fixed slide rail, the side edge of the upper part of the upper groove is provided with a lower fixed slide rail, and the upper buffer plate is nested into the upper fixed slide rail and the lower fixed slide rail through an upper slide block and a lower slide block which are respectively and fixedly arranged on the upper part and the lower part of the upper buffer plate.
It should be noted that the upper sliding block and the lower sliding block on the upper side and the lower side of the upper buffer plate are slidably clamped in the upper fixed sliding rail and the lower fixed sliding rail, when the flowmeter is transversely stressed, the upper fixed block and the upper fixed plate move relatively, and the upper buffer plate is transversely stressed to move along the upper fixed sliding rail and the lower fixed sliding rail.
Preferably, the rear part of the upper buffer plate is connected with the upper fixed plate through a plurality of transverse buffer springs, and the upper part of the upper fixed plate is provided with an air inlet pipe.
In order to absorb and buffer transverse stress, the four sides in the upper fixing plate are provided with a circle of upper buffer plate, the rear part of the upper buffer plate is fixedly connected with a plurality of transverse buffer springs, the upper fixing block is clamped in the upper groove, and when the upper fixing plate on the upper part of the flowmeter is compressed by transverse external force of the upper fixing block, the upper buffer plate performs damping and buffering operation.
Specifically, go up the horizontal atress of buffer board and slide along last fixed slide rail and lower fixed slide rail to the inboard, go up horizontal buffer spring atress compression absorption buffering horizontal atress that buffer board rear portion is connected, reduce the possibility that vibrations produced the noise.
Preferably, the rear portion of the shell is provided with a rear wall plate, the rear portion of the rear wall plate is fixedly connected with a rear end cover, the upper portion of the rear end cover is provided with an oil filling screw plug, the side portion of the rear end cover is provided with an oil window, a second gear and a first gear are arranged in the rear end cover, and two handles are respectively arranged on two sides of the shell.
It should be noted that, the second gear is meshed with the first gear, the belt pulley assembly rotates under the driving of the gas, and the belt pulley assembly provides the supporting force for the first gear and provides the power for the first gear at the same time, so that the first gear starts to rotate and drives the second gear to rotate at the same time. When in use, a user carries handles arranged on two sides of the shell to move the flowmeter.
Preferably, an upper fixing block is arranged at one end of the bottom of the air inlet pipe, and an air outlet pipe is arranged at the lower part of the lower fixing plate.
Specifically, other get into the flowmeter casing through the intake pipe, flow out gas through the outlet duct, when the installation, install the intake pipe on flowmeter upper portion through the last fixed block of intake pipe bottom.
Preferably, the upper part of the upper fixing block is provided with a plurality of upper positioning holes, and the upper parts of the upper positioning holes are provided with upper internal threads.
It should be noted that the upper fixing block is sleeved in the upper groove, and the air inlet pipe is fixedly mounted on the upper portion of the flowmeter through an upper internal connection thread arranged on the upper portion of the upper positioning hole.
Preferably, the upper fixing block is fixedly connected with the upper fixing plate through the upper portion of the upper positioning hole through a buffer bolt, an upper threaded bolt is arranged at the bottom of the buffer bolt, a vertical buffer spring is connected to the lower portion of the upper threaded bolt, and a lower threaded bolt is arranged at the bottom of the vertical buffer spring.
It should be noted that the air inlet pipe and the upper fixing plate are fixedly mounted together through the buffer bolt, the upper threaded bolt arranged on the upper portion of the buffer bolt is connected with the upper inner connecting thread arranged on the upper portion of the upper positioning hole, and the lower threaded bolt arranged on the bottom of the buffer bolt is connected with the lower inner connecting thread arranged on one section of the bottom of the upper fixing hole, so that the air inlet pipe and the upper fixing plate are fixedly mounted together.
Wherein, go up threaded bolt and be connected through vertical buffer spring between the threaded bolt down, when the flowmeter received vertical atress, the casing and the intake pipe of flowmeter took place relative motion in vertical, and vertical buffer spring receives upper fixed plate or last fixed block effort and takes place compression or tensile, and vertical buffer spring absorbs the vertical atress of buffering like this, reduces the possibility that flowmeter vibrations produced the noise. .
Compared with the prior art, the invention has the beneficial effects that:
1. and the transverse shock absorption and buffering are performed, so that the possibility of generating transverse vibration noise is reduced. The upper buffer plates are arranged on four sides inside the upper fixed plate of the flowmeter to absorb and buffer the transverse stress of the flowmeter, so that the effect of reducing the transverse vibration noise is achieved.
2. Vertical shock attenuation buffering reduces the possibility that longitudinal vibration noise produced. According to the invention, the buffer bolt fixedly connects the flowmeter and the air inlet pipe together through the upper/lower internal threads, and the vertical stress of the flowmeter is absorbed and buffered through the vertical buffer spring between the upper/lower internal threads, so that the effect of reducing the vertical vibration noise is achieved.
3. Convenient removal is used. According to the invention, the flow meter is convenient for users to carry by hand through the handles arranged on the two sides of the shell, so that the user can move and use conveniently.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partial cross-sectional view of the present invention.
Fig. 3 is an enlarged view of a portion of fig. 2 according to the present invention.
Fig. 4 is a schematic view of the post-installation structure of the present invention.
Fig. 5 is a front view of the invention after installation.
Fig. 6 is a partial cross-sectional view of the invention after installation.
Fig. 7 is a partially enlarged view of the invention at B in fig. 6.
Fig. 8 is a partial cross-sectional view of the junction of the present invention.
In the figure:
1. a display unit assembly; 2. a front end cover; 3. oil throwing sheets; 4. a magnetic coupling connector; 5. a bearing; 6. a front wall panel; 7. an upper fixing plate; 8. a housing; 9. a waist wheel assembly; 10. a lower fixing plate; 11. a rear wall panel; 12. a rear end cap; 13. oil is filled into the screw plug; 14. an oil window; 15. a second gear; 16. a first gear; 17. an air inlet pipe; 18. a cushion bolt; 19. an air outlet pipe; 20. a handle; 71. an air inlet; 72. an upper fixing hole; 73. an upper top plate; 74. an upper buffer plate; 75. a lateral buffer spring; 76. an upper groove; 721. a lower internal thread; 731. a slide rail is fixed on the upper part; 741. an upper slide block; 742. a lower slide block; 761. a lower fixed slide rail; 171. an upper fixed block; 172. an upper positioning hole; 1721. an upper internal thread; 181. an upper threaded bolt; 182. a vertical buffer spring; 183. and a lower threaded bolt.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in fig. 1 to 4, the invention provides a vibration-damping and noise-preventing waist wheel flowmeter, which comprises a display unit assembly 1, wherein a front end cover 2 is arranged at the rear part of the display unit assembly 1, an oil throwing sheet 3 is arranged inside the front end cover 2, a magnetic coupling connector 4 is arranged inside the front end cover 2, a bearing 5 is connected at the rear part of the magnetic coupling connector 4, the bearing 5 is sleeved on the upper part of a front wall plate 6, a waist wheel assembly 9 is connected at one end of the bearing 5, the waist wheel assembly 9 is arranged inside a shell 8, an upper fixing plate 7 is arranged on the upper part of the shell 8, and a lower fixing plate 10 is arranged at the bottom of the shell 8.
In this embodiment, after the gas enters the housing 8 of the waist wheel flow meter, a pressure difference is formed in the housing 8, so that the waist wheel assembly 9 rotates, in each rotation period, the volume of the gas is the sum of fixed volumes removed through four times in the housing 8, the rotation speed of the waist wheel assembly 9 is proportional to the gas flowing through, and the rotation of the waist wheel assembly 9 is output to the auxiliary counting reading unit in the display unit assembly 1 through the magnetic coupling connector 4 for analysis and calculation, and finally displayed in the display unit assembly 1.
In addition, when the air conditioner is installed, the air inlet pipe 17 is fixedly connected with the upper fixing plate 7, and the air outlet pipe 19 is fixedly connected with the lower fixing plate 10. When the measuring meter works, the upper fixing plate 7 is used for realizing the damping and buffering of transverse stress, and the noise pollution in the use process of the measuring meter is reduced.
As shown in fig. 2 to fig. 6, in the above embodiment, specifically, an air inlet hole 71 is disposed in the middle of the upper fixing plate 7, an upper fixing hole 72 is installed around the air inlet hole 71, an upper top plate 73 is disposed on the upper portion of the periphery of the upper fixing plate 7, an upper buffer plate 74 is installed at the bottom of the upper top plate 73, and an upper groove 76 is disposed inside the upper fixing plate 7.
When the air inlet pipe 17 is mounted, the upper fixing block 171 is inserted into the upper groove 76, so that the air inlet pipe 17 and the upper fixing plate 7 are conveniently fixed for the first time. In use, in order to absorb the lateral force between the meter and the intake pipe 17, the lateral buffering operation is performed by the upper buffering plate 74 provided around the upper fixing plate 7.
In the above embodiment, as shown in fig. 8, in particular, a section of the bottom of the upper fixing hole 72 is provided with a lower internal thread 721, and the lower internal thread 721 on the bottom side of the inside of the upper fixing hole 72 is fixedly connected with the cushion bolt 18.
As shown in fig. 1 to fig. 3, in the above embodiment, specifically, the upper top plate 73 is provided with an upper fixing rail 731 at the upper part, the upper groove 76 is provided with a lower fixing rail 761 at the upper side, and the upper buffering plate 74 is nested into the upper fixing rail 731 and the lower fixing rail 761 by an upper slide 741 and a lower slide 742 respectively fixedly installed at the upper part and the lower part of the upper buffering plate 74.
It should be noted that the upper slide 741 and the lower slide 742 on the upper and lower sides of the upper buffer plate 74 are slidably engaged with the upper fixed rail 731 and the lower fixed rail 761, and when the flowmeter is laterally stressed, the upper fixed block 171 and the upper fixed plate 7 move relatively, and the upper buffer plate 74 is laterally stressed to displace along the upper fixed rail 731 and the lower fixed rail 761.
As shown in fig. 1 to 4, in the above embodiment, specifically, the rear portion of the upper buffer plate 74 is connected to the upper fixed plate 7 through a plurality of transverse buffer springs 75, and the upper portion of the upper fixed plate 7 is provided with the air inlet pipe 17.
In order to absorb and buffer transverse stress, a circle of upper buffer plates 74 are arranged on four sides inside the upper fixing plate 7, a plurality of transverse buffer springs 75 are fixedly connected to the rear portion of each upper buffer plate 74, the upper fixing block 171 is clamped in the upper groove 76, and when the upper fixing plate 7 on the upper portion of the flowmeter is compressed by transverse external force of the upper fixing block 171, the upper buffer plates 74 perform damping and buffering operation.
Specifically, the upper buffer plate 74 is transversely stressed to slide inwards along the upper fixed slide rail 731 and the lower fixed slide rail 761, and the transverse buffer spring 75 connected to the rear portion of the upper buffer plate 74 is stressed to compress and absorb the transverse stress, so that the possibility of noise caused by vibration is reduced.
As shown in fig. 1 to 5, in the above embodiment, specifically, a rear wall plate 11 is disposed at the rear portion of the housing 8, a rear end cover 12 is fixedly connected to the rear portion of the rear wall plate 11, an oil filling screw 13 is disposed at the upper portion of the rear end cover 12, an oil window 14 is mounted at a side portion of the rear end cover 12, and a second gear 15 and a first gear 16 are disposed inside the rear end cover 12.
It should be noted that the second gear 15 is meshed with the first gear 16, the belt pulley assembly 9 is driven by the gas to rotate, and the belt pulley assembly 9 provides a supporting force for the first gear 16 and simultaneously provides a power for the first gear 16, so that the first gear 16 starts to rotate and simultaneously drives the second gear 15 to rotate. In use, a user carries handles 20 mounted on both sides of the housing 8 to move the flow meter.
As shown in fig. 6 to 7, in the above embodiment, specifically, an upper fixing block 171 is disposed at one end of the bottom of the air inlet pipe 17, and an air outlet pipe 19 is mounted at the lower portion of the lower fixing plate 10.
Specifically, the other gas enters the flowmeter housing 8 through the gas inlet pipe 17, the gas flows out through the gas outlet pipe 19, and when the flowmeter is installed, the gas inlet pipe 17 is installed on the upper portion of the flowmeter through the upper fixing block 171 at the bottom of the gas inlet pipe 17.
As shown in fig. 5 to 7, in the above embodiment, specifically, a plurality of upper positioning holes 172 are formed in an upper portion of the upper fixing block 171, and an upper internal thread 1721 is formed in an upper portion of the upper positioning holes 172.
The upper fixing block 171 is fitted into the upper recess 76, and the air inlet pipe 17 is fixedly mounted on the upper portion of the flowmeter by an upper internal thread 1721 provided on the upper portion of the upper positioning hole 172.
As shown in fig. 3 to 8, in the above embodiment, specifically, the upper fixing block 171 is fixedly connected to the upper fixing plate 7 through the buffer bolt 18 at the upper portion of the upper positioning hole 172, the bottom of the buffer bolt 18 is provided with an upper threaded bolt 181, the lower portion of the upper threaded bolt 181 is connected to a vertical buffer spring 182, and the bottom of the vertical buffer spring 182 is provided with a lower threaded bolt 183.
The air inlet pipe 17 and the upper fixing plate 7 are fixedly mounted together by the cushion bolt 18, the upper screw bolt 181 provided on the upper portion of the cushion bolt 18 is connected to the upper internal thread 1721 provided on the upper portion of the upper positioning hole 172, and the lower screw bolt 183 provided on the bottom portion of the cushion bolt 18 is connected to the lower internal thread 721 provided on a section of the bottom portion of the upper fixing hole 72, thereby fixedly mounting the air inlet pipe 17 and the upper fixing plate 7 together.
Wherein, go up threaded bolt 181 and be connected through vertical buffer spring 182 between the threaded bolt 183 down, when the flowmeter received vertical atress, relative motion took place in the vertical with intake pipe 17 for the casing 8 of flowmeter, vertical buffer spring 182 receives upper fixed plate 7 or upper fixed block 171 effort to take place compression or tensile, vertical buffer spring 182 absorbs the vertical atress of buffering like this, reduces the possibility that flowmeter vibrations produced the noise.
Principle of operation
The invention is used to move the meter to the desired position by means of handles 20 mounted on either side of the housing 8.
During installation, the handle 20 is held by hand to place the flowmeter between the inlet pipe 17 and the flowmeter housing 8, and the upper fixing block 171 at the bottom of the inlet pipe 17 is nested into the upper groove 76 inside the upper fixing plate 7. Then, the air inlet pipe 17 and the upper fixing plate 7 are fixedly mounted together through the buffer bolt 18, the upper threaded bolt 181 arranged at the upper part of the buffer bolt 18 is connected with the upper internal thread 1721 arranged at the upper part of the upper positioning hole 172, the lower threaded bolt 183 arranged at the bottom of the buffer bolt 18 is connected with the lower internal thread 721 arranged at one section of the bottom of the upper fixing hole 72, so that the air inlet pipe 17 and the upper fixing plate 7 are fixedly mounted together, and the upper threaded bolt 181 is connected with the lower threaded bolt 183 through the vertical buffer spring 182.
When the vertical buffering type flowmeter is used, when the flowmeter is stressed vertically, the shell 8 of the flowmeter and the air inlet pipe 17 move relatively in the vertical direction, the vertical buffering spring 182 is compressed or stretched by the acting force of the upper fixing plate 7 or the upper fixing block 171, and the vertical buffering spring 182 absorbs and buffers the vertical stress.
When the flowmeter is subjected to a transverse force, the upper fixed block 171 and the upper fixed plate 7 move relatively, the upper buffer plate 74 is subjected to the transverse force to displace along the upper fixed slide rail 731 and the lower fixed slide rail 761, and the transverse buffer spring 75 connected to the rear part of the upper buffer plate 74 is subjected to the force compression to absorb the transverse force, so that the possibility of generating noise due to vibration is reduced. In operation, the volume metering chamber formed by the 8-shaped waist wheel assembly 9 and the flowmeter shell 8 which rotate in opposite directions meters the flow of gas.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a roots flowmeter of shock attenuation noise control, includes display element subassembly (1), display element subassembly (1) rear portion is equipped with front end housing (2), front end housing (2) inside is equipped with gets rid of oil piece (3), front end housing (2) internally mounted has magnetic coupling connector (4), magnetic coupling connector (4) rear portion is connected with bearing (5), bearing (5) cup joint on front wall board (6) upper portion, bearing (5) one end is connected with roots subassembly (9), roots subassembly (9) are installed inside casing (8), its characterized in that, casing (8) upper portion is equipped with upper fixed plate (7), bottom plate (10) are installed to casing (8) bottom.
2. The vibration-damping and noise-preventing waist wheel flowmeter as claimed in claim 1, wherein an air inlet hole (71) is formed in the middle of the upper fixing plate (7), an upper fixing hole (72) is formed in the periphery of the air inlet hole (71), an upper top plate (73) is arranged on the upper portion of the periphery of the upper fixing plate (7), an upper buffer plate (74) is arranged at the bottom of the upper top plate (73), and an upper groove (76) is formed in the upper fixing plate (7).
3. A vibration and noise damping waist wheel flowmeter according to claim 2 wherein a section of the bottom of said upper fixing hole (72) is provided with a lower internal thread (721).
4. A vibration and noise reducing roots flowmeter according to claim 2, wherein the upper top plate (73) is provided with an upper fixing rail (731) at the upper portion thereof, the upper recess (76) is provided with a lower fixing rail (761) at the upper side thereof, and the upper damping plate (74) is inserted into the upper fixing rail (731) and the lower fixing rail (761) by an upper slide block (741) and a lower slide block (742) fixedly installed at the upper portion and the lower portion of the upper damping plate (74), respectively.
5. A shock-absorbing noise-proof Roots flowmeter according to claim 4, characterized in that the rear part of the upper damping plate (74) is connected with the upper fixing plate (7) through a plurality of transverse damping springs (75), and the upper part of the upper fixing plate (7) is provided with an air inlet pipe (17).
6. The vibration-damping and noise-preventing waist wheel flowmeter according to claim 1, wherein a back wall plate (11) is arranged at the back part of the casing (8), a back end cover (12) is fixedly connected to the back part of the back wall plate (11), an oil filling screw plug (13) is arranged at the upper part of the back end cover (12), an oil window (14) is arranged at the side part of the back end cover (12), a second gear (15) and a first gear (16) are arranged in the back end cover (12), and a handle (20) is arranged at each side of the casing (8).
7. The vibration-damping and noise-preventing waist wheel flowmeter as claimed in claim 5, wherein an upper fixing block (171) is arranged at one end of the bottom of the air inlet pipe (17), and an air outlet pipe (19) is arranged at the lower part of the lower fixing plate (10).
8. The vibration-damping and noise-preventing waist wheel flowmeter as claimed in claim 7, wherein a plurality of upper positioning holes (172) are formed in the upper portion of the upper fixing block (171), and upper internal threads (1721) are formed in the upper portions of the upper positioning holes (172).
9. The vibration-damping and noise-preventing waist wheel flowmeter as claimed in claim 8, wherein the upper fixing block (171) is fixedly connected with the upper fixing plate (7) through the upper part of the upper positioning hole (172) by a buffer bolt (18), the bottom of the buffer bolt (18) is provided with an upper threaded bolt (181), the lower part of the upper threaded bolt (181) is connected with a vertical buffer spring (182), and the bottom of the vertical buffer spring (182) is provided with a lower threaded bolt (183).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110918636.4A CN113670399A (en) | 2021-08-11 | 2021-08-11 | Damping and noise-proof waist wheel flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110918636.4A CN113670399A (en) | 2021-08-11 | 2021-08-11 | Damping and noise-proof waist wheel flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113670399A true CN113670399A (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110918636.4A Pending CN113670399A (en) | 2021-08-11 | 2021-08-11 | Damping and noise-proof waist wheel flowmeter |
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| CN (1) | CN113670399A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1944538B1 (en) * | 2007-01-15 | 2018-05-30 | Robert Bosch Gmbh | Hydraulic impulse attenuator |
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| CN213021781U (en) * | 2020-10-27 | 2021-04-20 | 天津中天鑫宇科技有限公司 | Anti-vibration flowmeter |
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2021
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| EP1944538B1 (en) * | 2007-01-15 | 2018-05-30 | Robert Bosch Gmbh | Hydraulic impulse attenuator |
| US20190025239A1 (en) * | 2017-07-21 | 2019-01-24 | Endress+Hauser Conducta Gmbh+Co. Kg | Modular measuring system |
| CN208075955U (en) * | 2018-02-05 | 2018-11-09 | 东莞市五羊水表制造有限公司 | A kind of mechanical high sensitivity water meter |
| CN208595415U (en) * | 2018-07-27 | 2019-03-12 | 天津市迅尔仪表科技有限公司 | A kind of gas roots flowmeter automatic lubricating system |
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| CN210833734U (en) * | 2019-11-20 | 2020-06-23 | 威海坤科流量仪表股份有限公司 | Gas waist wheel flowmeter |
| CN211904280U (en) * | 2020-05-21 | 2020-11-10 | 上海巨贯工业自动化设备有限公司 | Electromagnetic flowmeter packing carton |
| CN213021781U (en) * | 2020-10-27 | 2021-04-20 | 天津中天鑫宇科技有限公司 | Anti-vibration flowmeter |
| CN113188625A (en) * | 2021-03-26 | 2021-07-30 | 陈灼联 | Roots flowmeter |
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