CN109696226B - Water meter calibrating device based on sealed space quantitative air pressure value - Google Patents
Water meter calibrating device based on sealed space quantitative air pressure value Download PDFInfo
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- CN109696226B CN109696226B CN201811374903.0A CN201811374903A CN109696226B CN 109696226 B CN109696226 B CN 109696226B CN 201811374903 A CN201811374903 A CN 201811374903A CN 109696226 B CN109696226 B CN 109696226B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
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Abstract
The invention discloses a water meter calibrating device based on a sealed space quantitative air pressure value, which structurally comprises a water meter, a meter cover, a calibrating device, a power box and a base, wherein when a buckle rod and a buckle fixed groove are close to each other, the buckle rod and the buckle fixed groove are automatically locked, so that the wrapping performance is better, the dislocation and deviation are prevented from easily occurring under the impact of air pressure, the air flow overflow is avoided, when a quantitative pressure chamber reaches the air pressure value, a tympanic membrane is stressed inwards to be concave, a piston rod slides leftwards, the sealing effect is further realized under the action of the air pressure, the fixed air pressure in an air pressure chamber pushes the piston rod leftwards through a pressure discharge pipe, a pressure plate further extrudes an elastic deformation sleeve, the internal air pressure is directly utilized to stabilize the sealing, the sealing effect is better when the air pressure is larger, the problem that the air pressure overflows due to overlarge air flow is solved, the bottom of an electromagnet, meanwhile, the force of the electromagnet keeps a uniform direction, so that the friction is reduced, and the electromagnet is prevented from being excessively extruded and deformed.
Description
Technical Field
The invention discloses a water meter calibrating device based on a quantitative air pressure value in a sealed space, and belongs to the field of water meter detecting devices.
Background
The water gauge is as one of domestic water's major accessories for detect the throughput of rivers, if appear the gap, can increase discharge, and then change actual water consumption, influence monitoring effect, the water gauge detects and generally adopts the mode of blowing to detect the gap and realize the monitoring.
However, the existing water meter detection device has the following disadvantages:
water gauge detection device need wrap up, and the basis of atmospheric pressure response is blown, but because continuously increasing atmospheric pressure, the splice device about the wrapping material is for, takes place the dislocation easily under the high pressure, and there is roughness on the water gauge surface moreover, and inside pressure boost makes the edge of wrapping device and water gauge appear the joint gap easily, and then appears leaking gas, makes the detection of water gauge error.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a water meter calibrating device based on a sealed space quantitative air pressure value, which aims to solve the problems that the water meter detecting device needs to be wrapped, air pressure sensing is based on air blowing, but due to the fact that air pressure is continuously increased, the wrapping materials are left and right splicing devices, dislocation is easy to occur under high pressure, the surface of the water meter has roughness, and the edges of the wrapping devices and the water meter are easy to generate connecting gaps due to internal pressurization, so that air leakage occurs, and the detection of the water meter has errors.
In order to achieve the purpose, the invention is realized by the following technical scheme: a water meter calibrating device based on a sealed space quantitative air pressure value structurally comprises a water meter, a meter cover, a calibrating device, a power box and a base, wherein the outer wall of the water meter is attached to the middle end of the calibrating device, the bottom of the calibrating device is welded with the top of the base, the top of the base is in clearance fit with the bottom of the middle end of the calibrating device, the calibrating device comprises a left part and a right part, the side end of the power box is fixedly connected with the side end of the base, the bottom of the meter cover is connected with the top of the water meter through a positioning pin, a fan and an oil pump are arranged in the power box, the oil pump provides power for a piston push rod, and the;
the calibrating device is composed of a movable sealing device and an induction supply device, the right end of the movable sealing device is mechanically connected with the left end of the induction supply device, and the bottom of the movable sealing device is connected with the top of the base through a sliding block.
The movable sealing device is characterized by comprising a locking device, a quantitative pressure bin and a pressure reaction device, wherein the outer wall of the locking device is fixedly connected with the side end of the quantitative pressure bin, the inner part of the middle end of the quantitative pressure bin is fixedly connected with the outer wall of the middle end of the pressure reaction device, the outer wall of the quantitative pressure bin is connected with a pressure sensor, and the pressure sensor can detect the air pressure value inside.
It is showing, locking device comprises electro-magnet, reduction spring, buckle pole, buckle fixed slot, the electro-magnet bottom is laminated with buckle pole top, buckle pole left end is connected with the locating pin, buckle pole right-hand member is equipped with the barb, buckle pole right-hand member is embedded connection with buckle fixed slot inside, buckle fixed slot inside is equipped with the recess, reduction spring top is embedded connection with buckle pole bottom, because quantitative pressure storehouse is two parts about, realizes detecting through pasting tight water gauge, under the impact of atmospheric pressure, the dislocation skew appears easily, needs to use locking device so that increase sealed effect.
The pressure counteraction device is composed of a sealing block, an elastic deformation sleeve, a positioning frame and a counteraction extrusion device, the right end of the sealing block is bonded with the left end of the elastic deformation sleeve, the right end of the elastic deformation sleeve is attached to the left end of the counteraction extrusion device, the middle end of the counteraction extrusion device is communicated with the middle end of the positioning frame, the left end of the positioning frame is connected with the middle end of the counteraction extrusion device through a spring, the counteraction extrusion device is in an annular shape and close to the elastic deformation sleeve, and the sealing processing with the meter cover is achieved by extruding the sealing block through the elastic deformation sleeve.
It is showing, the reaction extrusion device comprises clamp plate, piston rod, ball spout, tympanic membrane, atmospheric pressure chamber, pressure pipe, the clamp plate right-hand member bonds with the piston rod left end, the piston rod outer wall is connected through the ball with the ball spout is inside, ball spout right-hand member and pressure pipe left end sealing connection, the pressure pipe middle-end is inside and piston rod right-hand member outer wall for interference fit, pressure pipe right-hand member and atmospheric pressure chamber left end fixed connection, atmospheric pressure chamber right-hand member and tympanic membrane left end structure as an organic whole, when quantitative pressure storehouse reached the atmospheric pressure value, the tympanic membrane atress was concave inwards, made the piston rod slide to the left, and then realized sealed effect under atmospheric pressure's effect.
It is showing, the response feeding device comprises pressure sensors, air delivery pipe, stay tube, pressure oil pipe, piston push rod, pressure sensors left end and activity sealing device right-hand member fixed connection, air delivery pipe left end link up with the activity sealing device right-hand member mutually, air delivery pipe right-hand member and stay tube front end structure as an organic whole, air delivery pipe is extending structure, the stay tube side passes through connecting rod fixed connection with pressure oil pipe side, piston push rod right-hand member and the inside interference fit that is of pressure oil pipe, piston push rod left end welds with the activity sealing device right-hand member mutually, is equipped with ooff valve on the stay tube, when the air current reaches a quantitative, can self-closing.
Obviously, the right end of the elastic deformation sleeve is connected with a reaction extrusion device, the reaction extrusion device is provided with a pressing plate, and the left end of the pressing plate is of an arc-shaped structure and is tightly attached to the elastic deformation sleeve.
Advantageous effects
When the water meter is used, the movable sealing device is preferentially pushed by the piston push rod to lock the water meter, the sealing block is tightly attached to the surface of the water meter, dislocation and deviation are easy to occur under the impact of air pressure, the locking device is needed to be used so as to increase the sealing effect, when the buckle rod and the buckle fixed groove are close to each other, the buckle rod and the buckle fixed groove are automatically locked, if the buckle rod and the buckle fixed groove are needed to be unlocked, the electromagnet is controlled to push the buckle rod downwards, the buckle rod overcomes the reduction spring to rotate clockwise, the buckle rod and the buckle fixed groove can be separated, meanwhile, the bottom of the electromagnet is provided with the roller wheel which reduces friction when being pushed so as to prevent the electromagnet from being excessively extruded and deformed, when the quantitative pressure bin reaches the air pressure value, the tympanic membrane is forced inwards concave, the piston rod is made to slide leftwards, the sealing effect is further realized under the action of the air pressure, the piston rod is pushed leftwards through the fixed air pressure in, the clamp plate further extrudees elastic deformation cover (reaction extrusion device is the annular and is close to elastic deformation cover), and then the sealed piece of extrusion realizes the sealed processing with the table lid, the locating rack is stable not understood, make reaction extrusion device be in same straight line position when sliding all the time, quantitative pressure storehouse outer wall is connected with pressure sensors, the inside atmospheric pressure value of pressure sensors detectable, the film of pressure sensors outer wall can the invagination when atmospheric pressure is enough suppresses alarm switch's touching, under the condition of avoiding the air current excessive, the atmospheric pressure of fixed quantity can suppress pressure sensors and report to the police, if the gap appears in the water gauge will reduce the atmospheric pressure value, and then pressure sensors reports to the police, explain that the water gauge has cracked gap problem.
Compared with the prior art, the invention has the following advantages:
1. when the buckle rod and the buckle fixed groove are close to each other, the buckle rod and the buckle fixed groove are automatically locked, so that the wrapping performance is better, the phenomenon that dislocation deviation occurs easily under the impact of air pressure is prevented, and the overflow of air flow is avoided.
2. When quantitative pressure storehouse reached the atmospheric pressure value, the tympanic membrane atress was concave inwards, made the piston rod slide left, and then realized sealed effect under the effect of atmospheric pressure, and the fixed atmospheric pressure of atmospheric pressure intracavity portion is through the pressure pipe and is turning left promotion piston rod, and then the clamp plate further extrudees elastic deformation cover, directly utilizes inside atmospheric pressure to stabilize sealedly, and the big sealed effect of atmospheric pressure is better, solves the excessive atmospheric pressure overflow.
3. The bottom of the electromagnet is provided with a roller, the roller can rotate along with the rotation of the buckling rod when being pushed, meanwhile, the stress of the electromagnet keeps the uniform direction, and the electromagnet is prevented from being excessively extruded and deformed while the friction is reduced.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a water meter calibrating device based on a sealed space quantitative air pressure value according to the present invention;
FIG. 2 is a top cross-sectional view of the induction feeding unit of the present invention;
FIG. 3 is a top cross-sectional view of the movable seal of the present invention;
FIG. 4 is an enlarged view of the locking device of FIG. 3 in accordance with the present invention;
FIG. 5 is an enlarged view of the pressure reaction device of FIG. 3 in accordance with the present invention;
FIG. 6 is a front cross-sectional view of a reverse extrusion apparatus of the present invention.
In the figure: water meter-1, meter cover-2, calibrating device-3, power box-4, base-5, movable sealing device-30, induction supply device-31, locking device-301, quantitative pressure cabin-302, pressure counteraction device-303, electromagnet-3011, reducing spring-3012, fastening rod-3013, fastening groove-3014, sealing block-3031, elastic deformation sleeve-3032, positioning frame-3033, reaction extrusion device-3034, pressure plate-A1, piston rod-A2, ball chute-A3, tympanic membrane-A4, air pressure chamber-A5, pressure discharge tube-A6, pressure sensor-311, air flow delivery tube-312, support tube-313, pressure oil tube-314 and piston push rod-315.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the present invention provides a water meter calibrating apparatus based on a sealed space quantitative air pressure value, which comprises: the structure of the device comprises a water meter 1, a meter cover 2, a calibrating device 3, a power box 4 and a base 5, wherein the outer wall of the water meter 1 is attached to the middle end of the calibrating device 3, the bottom of the calibrating device 3 is welded to the top of the base 5, the top of the base 5 is in clearance fit with the bottom of the middle end of the calibrating device 3, the calibrating device 3 is divided into a left part and a right part, the side end of the power box 4 is fixedly connected with the side end of the base 5, the bottom of the meter cover 2 is connected with the top of the water meter 1 through a positioning pin, a fan and an oil pump are arranged in the power box 4, the oil pump provides power for a piston push rod 315, the fan conveys air flow through an air flow conveying pipe;
the calibrating device 3 is composed of a movable sealing device 30 and an induction supply device 31, the right end of the movable sealing device 30 is mechanically connected with the left end of the induction supply device 31, and the bottom of the movable sealing device 30 is connected with the top of the base 5 through a sliding block.
Referring to fig. 3, the movable sealing device 30 is composed of a locking device 301, a quantitative pressure chamber 302, and a pressure reaction device 303, wherein an outer wall of the locking device 301 is fixedly connected to a side end of the quantitative pressure chamber 302, an inner portion of a middle end of the quantitative pressure chamber 302 is fixedly connected to an outer wall of a middle end of the pressure reaction device 303, an outer wall of the quantitative pressure chamber 302 is connected to a pressure sensor 311, the pressure sensor 311 can detect an internal air pressure value, and when the air pressure is sufficient, a thin film on the outer wall of the pressure sensor 311 is recessed inward to inhibit the activation of the alarm switch.
Referring to fig. 4, the locking device 301 includes an electromagnet 3011, a restoring spring 3012, a buckle rod 3013, and a buckle slot 3014, the bottom of the electromagnet 3011 is attached to the top of the buckle rod 3013, the left end of the buckle rod 3013 is connected to a positioning pin, the right end of the buckle rod 3013 is provided with a barb, the right end of the buckle rod 3013 is connected to the inside of the buckle slot 3014 in an embedded manner, the buckle slot 3014 is provided with a groove therein, the top of the restoring spring 3012 is connected to the bottom of the buckle rod 3013 in an embedded manner, since the quantitative pressure chamber 302 is provided with two parts, the detection is realized by attaching the water meter 2, under the impact of air pressure, the dislocation and the deviation are likely to occur, the locking device 301 is needed to increase the sealing effect, when the buckle rod 3013 and the buckle slot 3014 are close to each other, the locking device and if needed, the electromagnet 3011 is controlled to push the buckle rod 3013 downward, and the buckle rod 3013 overcomes the clockwise rotation of the, the buckle rod 3013 can be separated from the buckle fixing groove 3014, and the bottom of the electromagnet 3011 is provided with a roller to reduce friction when pushing, so as to prevent the electromagnet 3011 from being deformed due to over extrusion.
Referring to fig. 5, the pressure reaction device 303 is composed of a sealing block 3031, an elastic deformation sleeve 3032, a positioning frame 3033, and a reaction extrusion device 3034, wherein the right end of the sealing block 3031 is bonded to the left end of the elastic deformation sleeve 3032, the right end of the elastic deformation sleeve 3032 is bonded to the left end of the reaction extrusion device 3034, the middle end of the reaction extrusion device 3034 is communicated with the middle end of the positioning frame 3033, the left end of the positioning frame 3033 is connected to the middle end of the reaction extrusion device 3034 through a spring, the reaction extrusion device 3034 is annularly close to the elastic deformation sleeve 3032, the sealing process with the watch cover 2 is realized by extruding the sealing block 3031 through the elastic deformation sleeve 3032, the positioning frame 3033 is stable and is not understood, so that the reaction extrusion device 3034 is always located at the same linear position during sliding.
Referring to fig. 6, the reverse extrusion device 3034 includes a pressing plate a1, a piston rod a2, a ball sliding groove A3, a tympanic membrane A4, an air pressure chamber A5, and a pressure discharge tube A6, wherein a right end of the pressing plate a1 is bonded to a left end of the piston rod a2, an outer wall of the piston rod a2 is connected to an inside of the ball sliding groove A3 through balls, a right end of the ball sliding groove A3 is hermetically connected to a left end of the pressure discharge tube A6, an inside of a middle end of the pressure discharge tube A6 is in interference fit with an outer wall of a right end of the piston rod a2, a right end of the pressure discharge tube A6 is fixedly connected to a left end of the air pressure chamber A5, a right end of the air pressure chamber A5 and a left end of the tympanic membrane A4 are integrated, when the quantitative pressure chamber 302 reaches an air pressure value, the tympanic membrane A4 is forced to be recessed inward, so that the piston rod a2 slides leftward, thereby achieving a sealing effect under the air pressure, and a fixed air pressure inside the pressure chamber A5 pushes the piston rod A6 to move leftward, and the First, the pressure plate a1 further presses the elastically deformable sleeve 3032.
Referring to fig. 2, the induction supply device 31 is composed of a pressure sensor 311, an air delivery pipe 312, a support pipe 313, a pressure oil pipe 314, and a piston rod 315, the left end of the pressure sensor 311 is fixedly connected with the right end of the movable sealing device 30, the left end of the airflow conveying pipe 312 is communicated with the right end of the movable sealing device 30, the right end of the air delivery pipe 312 and the front end of the support pipe 313 are integrated, the air delivery pipe 312 is a telescopic structure, the side end of the supporting tube 313 is fixedly connected with the side end of the pressure oil tube 314 through a connecting rod, the right end of the piston push rod 315 is in interference fit with the interior of the pressure oil tube 314, the left end of the piston push rod 315 is welded with the right end of the movable sealing device 30, a switch valve is arranged on the supporting pipe 313, when the air flow reaches a certain amount, the valve will be closed automatically, and the movable sealing device 30 is pushed by the piston push rod 315 to lock the water meter.
The right end of the elastic deformation sleeve 3032 is connected with a reaction extrusion device 3034, the reaction extrusion device 3034 is provided with a pressure plate A1, and the left end of the pressure plate A1 is of an arc-shaped structure and is tightly attached to the elastic deformation sleeve 3032.
When the water meter is used, the movable sealing device 30 is preferentially pushed by the piston push rod 315 to lock the water meter, the sealing block 3031 is tightly attached to the surface of the water meter 2, dislocation and deviation are easy to occur under the impact of air pressure, the locking device 301 is needed to increase the sealing effect, when the buckle rod 3013 and the buckle fixed groove 3014 are close to each other, the two automatically complete locking, if the unlocking is needed, the electromagnet 3011 is controlled to push the buckle rod 3013 downwards, the buckle rod 3013 overcomes the reduction spring 3012 to rotate clockwise, the buckle rod 3013 can be separated from the buckle fixed groove 3014, meanwhile, the bottom of the electromagnet 3011 is provided with a roller, friction is reduced during pushing, the electromagnet 3011 is prevented from being excessively extruded and deformed, when the quantitative pressure bin 302 reaches the air pressure value, the tympanic membrane A4 is forced to be concave inwards, the piston rod A2 slides leftwards, the sealing effect is realized under the action of air pressure, the fixed air pressure in the air pressure cavity A5 pushes the piston rod 539A 2 leftwards through the pressure, when the piston rod A2 slides, the balls in the ball slide groove A3 reduce friction and make the stress direction of the piston rod A2 uniform, the pressure plate A1 further extrudes the elastic deformation sleeve 3032 (the reaction extrusion device 3034 is in a ring shape and is close to the elastic deformation sleeve 3032), further, the pressing seal block 3031 realizes the sealing treatment with the meter cover 2, the positioning frame 3033 is stable and incomprehensible, the reaction pressing device 3034 is always positioned at the same straight line position when sliding, the outer wall of the quantitative pressure chamber 302 is connected with a pressure sensor 311, the pressure sensor 311 can detect the internal air pressure value, when the air pressure is sufficient, the membrane on the outer wall of the pressure sensor 311 will sink to inhibit the alarm switch from being activated, under the condition of avoiding the overflow of the air current, the air pressure of a fixed quantity can inhibit the pressure sensor 311 from alarming, if the water meter 2 has a gap, the air pressure value will be reduced, and then the pressure sensor 311 alarms, which indicates that the water meter 2 has a cracked gap problem.
The invention solves the problems that a water meter detection device needs to be wrapped, air blowing is used as the basis of air pressure induction, but the wrapping material is a left and right splicing device due to the fact that air pressure is continuously increased, dislocation is easy to occur under high pressure, the surface of the water meter has roughness, the edge of the wrapping device and the edge of the water meter are easy to generate connecting gaps due to internal pressurization, air leakage is easy to occur, and detection of the water meter has errors. And then the clamp plate further extrudes elastic deformation cover, directly utilizes inside atmospheric pressure to stabilize sealedly, and the bigger sealed effect that atmospheric pressure is better, and it is excessive to solve atmospheric pressure, and the electro-magnet bottom is equipped with the gyro wheel, and the gyro wheel can be along with the rotation of buckle pole and the rotation of oneself when promoting, and the electro-magnet atress keeps unified direction simultaneously, when reducing the friction, prevents that the electro-magnet from extrudeing excessively and warping.
The foregoing merely illustrates the principles and preferred embodiments of the invention and many variations and modifications may be made by those skilled in the art in light of the foregoing disclosure, which are intended to be within the scope of the invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a water gauge calibrating installation based on confined space ration atmospheric pressure value, its structure includes water gauge (1), table lid (2), calibrating installation (3), headstock (4), base (5), its characterized in that:
the outer wall of the water meter (1) is attached to the middle end of the calibrating device (3), the bottom of the calibrating device (3) is welded to the top of the base (5), the top of the base (5) is in clearance fit with the bottom of the middle end of the calibrating device (3), the calibrating device (3) is divided into a left part and a right part, the side end of the power box (4) is fixedly connected with the side end of the base (5), and the bottom of the meter cover (2) is connected with the top of the water meter (1) through a positioning pin;
the calibrating device (3) consists of a movable sealing device (30) and an induction supply device (31), the right end of the movable sealing device (30) is mechanically connected with the left end of the induction supply device (31), and the bottom of the movable sealing device (30) is connected with the top of the base (5) through a sliding block;
the movable sealing device (30) is composed of a locking device (301), a quantitative pressure bin (302) and a pressure reaction device (303), the outer wall of the locking device (301) is fixedly connected with the side end of the quantitative pressure bin (302), and the inner part of the middle end of the quantitative pressure bin (302) is fixedly connected with the outer wall of the middle end of the pressure reaction device (303).
2. A water meter calibration device based on a quantitative air pressure value in a sealed space as claimed in claim 1, wherein: locking device (301) are by electro-magnet (3011), reduction spring (3012), buckle pole (3013), buckle fixed slot (3014) are constituteed, electro-magnet (3011) bottom is laminated mutually with buckle pole (3013) top, buckle pole (3013) left end is connected with the locating pin, buckle pole (3013) right-hand member is equipped with the barb, buckle pole (3013) right-hand member is embedded to be connected with buckle fixed slot (3014) inside, buckle fixed slot (3014) inside is equipped with the recess, reduction spring (3012) top is embedded to be connected with buckle pole (3013) bottom.
3. A water meter calibration device based on a quantitative air pressure value in a sealed space as claimed in claim 2, wherein: the pressure reaction device (303) is composed of a sealing block (3031), an elastic deformation sleeve (3032), a positioning frame (3033) and a reaction extrusion device (3034), wherein the right end of the sealing block (3031) is bonded with the left end of the elastic deformation sleeve (3032), the right end of the elastic deformation sleeve (3032) is bonded with the left end of the reaction extrusion device (3034), the middle end of the reaction extrusion device (3034) is communicated with the middle end of the positioning frame (3033), and the left end of the positioning frame (3033) is connected with the middle end of the reaction extrusion device (3034) through a spring.
4. A water meter calibration device based on a quantitative air pressure value in a sealed space as claimed in claim 3, wherein: the reaction extrusion device (3034) comprises a pressure plate (A1), a piston rod (A2), a ball sliding groove (A3), a tympanic membrane (A4), a pneumatic cavity (A5) and a pressure discharge pipe (A6), wherein the right end of the pressure plate (A1) is bonded with the left end of the piston rod (A2), the outer wall of the piston rod (A2) is connected with the inside of the ball sliding groove (A3) through balls, the right end of the ball sliding groove (A3) is connected with the left end of the pressure discharge pipe (A6) in a sealing mode, the inside of the middle end of the pressure discharge pipe (A6) is in interference fit with the outer wall of the right end of the piston rod (A2), the right end of the pressure discharge pipe (A6) is fixedly connected with the left end of the pneumatic cavity (A5), and the left end of the pneumatic cavity (A5).
5. A water meter calibration device based on a quantitative air pressure value in a sealed space as claimed in claim 1, wherein: the induction supply device (31) is composed of a pressure inductor (311), an air flow conveying pipe (312), a supporting pipe (313), a pressure oil pipe (314) and a piston push rod (315), wherein the left end of the pressure inductor (311) is fixedly connected with the right end of the movable sealing device (30), the left end of the air flow conveying pipe (312) is communicated with the right end of the movable sealing device (30), the right end of the air flow conveying pipe (312) and the front end of the supporting pipe (313) are of an integrated structure, the air flow conveying pipe (312) is of a telescopic structure, the side end of the supporting pipe (313) is fixedly connected with the side end of the pressure oil pipe (314) through a connecting rod, the right end of the piston push rod (315) is in interference fit with the inside of the pressure oil pipe (314), and the left end of the piston push rod (315).
6. A water meter calibration device based on a quantitative air pressure value in a sealed space as claimed in claim 3 or 4, wherein: the right end of the elastic deformation sleeve (3032) is connected with a reaction extrusion device (3034), the reaction extrusion device (3034) is provided with a pressure plate (A1), and the left end of the pressure plate (A1) is of an arc structure and is tightly attached to the elastic deformation sleeve (3032).
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| CN201811374903.0A CN109696226B (en) | 2018-11-19 | 2018-11-19 | Water meter calibrating device based on sealed space quantitative air pressure value |
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| CN110186520B (en) * | 2019-06-12 | 2020-12-15 | 成都市穆尔西仪表科技有限公司 | Low-power consumption wisdom thing networking intelligent water gauge |
| CN112179435A (en) * | 2020-10-09 | 2021-01-05 | 湖南常德牌水表制造有限公司 | Rotary piston positive displacement water meter |
| CN112595284B (en) * | 2021-03-04 | 2021-05-28 | 山东胜工检测技术有限公司 | Special calibration device for shale dilatometer and installation method thereof |
| CN112945359A (en) * | 2021-03-29 | 2021-06-11 | 开封市全盛流量计衬里有限公司 | Calibration device for flow testing tool of electromagnetic flowmeter |
| CN116539115B (en) * | 2023-07-07 | 2023-09-26 | 北京嘉洁能科技股份有限公司 | Water meter with disassembly alarm function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201476836U (en) * | 2009-07-25 | 2010-05-19 | 张舜先 | Improved pressure gauge housing |
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| 水表检定台夹紧装置小改造;林向阳;《科技展望》;20151210;全文 * |
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Effective date of registration: 20201111 Address after: Room 20, 5 / F, building 6, 300 hospital, Guizhou Aviation Industry Corporation, 135 Qingshuijiang Road, Guiyang Economic and Technological Development Zone, Guizhou Province Applicant after: Guiyang obit Aerospace Technology Co.,Ltd. Address before: 362100 Shanggang 107, Lincun, Dongyuan Town, Quanzhou Taiwanese Investment Zone, Quanzhou City, Fujian Province Applicant before: Chen Ning |
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Inventor after: Yang Gang Inventor after: Tang Hao Inventor after: Chen Tian Inventor after: Chen Ning Inventor before: Chen Ning |
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