A fluid metering device with accurate measurement and a method of using the same

Abstract

The present invention discloses a fluid metering device with precise measurement, specifically comprising: a main unit, including a main connecting pipe, on which a fluid metering device body is provided, and the left and right ends of the main connecting pipe are respectively fixedly connected with a first connecting pipe and a second connecting pipe; a closing unit, including a stopper arranged in the main connecting pipe for closing the pipeline, a plurality of connecting rods fixedly arranged on the stopper, a plurality of telescopic components arranged in the first connecting pipe for connecting rod sliding, and an energy charging group arranged on the first connecting pipe for driving the telescopic components. When the present invention encounters an emergency, the user can directly start the solenoid valve, so that the gas stored on the right side of the fixed plate can directly enter the space on the right side of the first piston plate in the hollow rod through the vent, so that the stopper moves to the left until it abuts against the inner wall of the first connecting pipe, thereby blocking the fluid. The operation is simple and convenient, and the safety of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid metering, and in particular to a fluid metering device with precise metering and a use method thereof. Background Art

[0002] The development of flow measurement can be traced back to ancient water conservancy projects and urban water supply systems. In the era of Caesar in ancient Rome, orifice plates were used to measure the amount of drinking water for residents. Around 1000 BC, ancient Egypt used the weir method to measure the flow of the Nile River. The famous Dujiangyan Irrigation Project in my country used the water level of Baopingkou to observe the water volume, etc. Flow meters are divided into differential pressure flow meters, rotor flow meters, throttling flow meters, slit flow meters, volume flow meters, electromagnetic flow meters, ultrasonic flow meters, turbine flow meters and vortex flow meters, etc. Classified by medium: liquid flow meters, gas flow meters, steam flow meters and solid flow meters.

[0003] When installing existing devices, bolts and nuts are often used for installation, and users are required to tighten the bolts one by one. The operation is cumbersome and the work efficiency is low. In addition, the existing flow meter does not have a partition function. When encountering some emergencies such as pipeline rupture, the user needs to rush to the valve to block the fluid. The operation is cumbersome and the safety of the device is low. Summary of the invention

[0004] The purpose of the present invention is to solve the defects in the prior art that "existing devices are often installed by combining bolts and nuts, and users are required to tighten the bolts one by one, which is cumbersome to operate and has low work efficiency. In addition, the existing flow meter does not have a partition function. When encountering some emergencies such as pipeline rupture, the user needs to rush to the valve to block the fluid, which is cumbersome to operate and has low safety.", thereby proposing a fluid metering device with precise measurement.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A fluid metering device with precise measurement, specifically comprising:

[0007] The main unit comprises a main connecting pipe, on which a fluid metering device body is arranged, and left and right ends of the main connecting pipe are respectively fixedly connected with a first connecting pipe and a second connecting pipe;

[0008] The installation unit includes a second flange rotatably arranged on the first connecting pipe and the second connecting pipe, a water pipe arranged on one side of the second flange, a first flange fixedly arranged on the water pipe, and an installation component arranged between the first flange and the second flange for installation;

[0009] The closing unit includes a block arranged in the main connecting pipe for closing the pipeline, a plurality of connecting rods fixedly arranged on the block, a plurality of telescopic components arranged in the first connecting pipe for sliding of the connecting rods, and a charging component arranged on the first connecting pipe for driving the telescopic components.

[0010] Preferably, the mounting assembly includes a plurality of connecting blocks, the connecting blocks are fixedly connected to the second flange, a clamping plate is fixedly connected to the connecting block, a plurality of push rods are fixedly connected to a side wall of the clamping plate close to the second flange, a plurality of arc-shaped openings are provided on the first flange, the arc-shaped openings match the clamping plate, a plurality of arc-shaped clamping blocks are fixedly connected to the inner side walls of the arc-shaped openings, the arc-shaped clamping blocks are provided with an inclined surface, and the push rods cooperate with the inclined surface.

[0011] Preferably, a threaded sleeve is fixedly connected to the second flange, and the threaded sleeve is threadedly connected to the first connecting pipe.

[0012] Preferably, the telescopic assembly includes a hollow rod, which is fixedly connected to the inner wall of the first connecting tube, a first piston plate is fixedly connected inside the hollow rod, the connecting rod is fixedly connected to the first piston plate, and the connecting rod is slidably inserted into the hollow rod, and a first spring is fixedly connected between the first piston plate and the inner wall of the hollow rod.

[0013] Preferably, the energy charging component includes a rotating shaft, which passes through and is rotatably connected to the first connecting tube, an impeller is fixedly connected to the rotating shaft, a semicircular plate is fixedly connected to the inner wall of the first connecting tube on one side of the impeller, a plurality of rectangular sleeve rods are fixedly connected to the outer wall of the first connecting tube, the rotating shaft is rotatably inserted into the rectangular sleeve rod, cams are fixedly connected at both ends of the rotating shaft, an energy storage component cooperating with the cam is provided in the rectangular sleeve rod, an air vent is provided on the inner wall on the right side of the rectangular sleeve rod, the side wall of the first connecting tube and the side wall of the hollow rod, and an electromagnetic valve is provided in the vent.

[0014] Preferably, the energy storage component includes a second piston plate, which is slidably connected to the inner wall of the rectangular sleeve rod, a plurality of circular openings are opened on the rectangular sleeve rod on the right side of the second piston plate, a fixing plate is fixedly connected to the inner wall of the rectangular sleeve rod on the right side of the circular opening, a second spring is fixedly connected between the fixing plate and the second piston plate, an air pipe is fixedly inserted through the fixing plate, and a one-way valve is provided in the air pipe.

[0015] Preferably, a first air outlet pipe is fixedly inserted into the side wall of the rectangular sleeve rod between the second piston plate and the fixed plate, and a pressure relief valve is provided in the first air outlet pipe.

[0016] Preferably, a second air outlet pipe is fixedly inserted into the right side wall of the rectangular sleeve rod, and a screw cap is threadedly provided on the second air outlet pipe.

[0017] The method for using the above-mentioned fluid metering device with accurate measurement specifically comprises the following steps:

[0018] S1. When in use, pass the card through the arc-shaped opening, then rotate the threaded sleeve to rotate the second flange, drive the connecting block to rotate, and make the support rod rotate with the card. When the card contacts the inclined surface, the second flange and the first flange gradually fit closely together to complete the installation. The operation is simple and convenient.

[0019] S2. After the installation is completed, open the valve and start the fluid metering device to accurately measure the fluid in the main connecting pipe;

[0020] S3. When the liquid flows from left to right, the impeller is driven to rotate, so that the rotating shaft rotates, and the cam is driven to rotate, so that when the cam contacts the second piston plate, the second piston plate is squeezed to move to the right, and the gas on the left side of the fixed plate is squeezed into the right side of the fixed plate for storage. When the cam is no longer in contact with the second piston plate, the second piston plate moves to the left under the action of the second spring, and this reciprocating process causes the air pressure on the right side of the fixed plate to increase continuously, so as to store energy;

[0021] S4. When encountering an emergency, the user can directly activate the solenoid valve so that the gas stored on the right side of the fixed plate can directly enter the space on the right side of the first piston plate in the hollow rod through the vent, squeezing the first piston plate to move to the left, driving the connecting rod to move to the left, and causing the block to move to the left until it is against the inner wall of the first connecting tube.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. When in use, pass the card plate through the arc-shaped opening, and then rotate the threaded sleeve to rotate the second flange, drive the connecting block to rotate, and make the support rod rotate with the card plate. When the card plate contacts the inclined surface, the second flange and the first flange gradually fit closely to complete the installation. The operation is simple and convenient, and the work efficiency is improved.

[0024] 2. When the liquid flows from left to right, the shaft rotates, driving the cam to rotate, squeezing the second piston plate to move to the right, squeezing the gas on the left side of the fixed plate into the right side of the fixed plate for storage, so that the air pressure on the right side of the fixed plate continues to increase for energy storage. When an emergency occurs, the user can directly start the solenoid valve so that the gas stored on the right side of the fixed plate can directly enter the space on the right side of the first piston plate in the hollow rod through the vent, squeezing the first piston plate to move to the left, driving the connecting rod to move to the left, and causing the block to move to the left until it is against the inner wall of the first connecting pipe, thereby blocking the fluid. The operation is simple and convenient, and the safety of the equipment is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the front structure of a fluid metering device with precise measurement proposed by the present invention;

[0026] Figure 2 for Figure 1 A partial enlarged schematic diagram of the second flange;

[0027] Figure 3 for Figure 1 A partial enlarged schematic diagram of the first flange;

[0028] Figure 4 for Figure 1 A top view cross-sectional schematic diagram of ;

[0029] Figure 5 for Figure 4 A schematic front cross-sectional view of the middle rectangular sleeve rod;

[0030] Figure 6 for Figure 4 Schematic diagram of the top view of the hollow rod.

[0031] In the figure: 1, main unit; 11, main connecting pipe; 12, fluid metering device body; 13, first connecting pipe; 14, second connecting pipe; 2, mounting unit; 21, water pipe; 22, first flange; 23, second flange; 24, mounting assembly; 241, threaded sleeve; 242, connecting block; 243, clamping plate; 244, stopper; 245, arc opening; 246, arc clamping block; 247, inclined surface; 3, closing unit; 31, stopper; 32, connecting rod; 33, telescopic assembly; 331, hollow Rod; 332, first piston plate; 333, first spring; 34, charging assembly; 341, rotating shaft; 342, impeller; 343, semicircular plate; 344, rectangular sleeve rod; 345, cam; 346, energy storage member; 346-1, second piston plate; 346-2, circular opening; 346-3, fixing plate; 346-4, air pipe; 346-5, second spring; 347, first air outlet pipe; 348, air vent; 348-1, solenoid valve; 349, second air outlet pipe; 349-1, screw cap. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Reference Figure 1-6 , a fluid metering device with precise measurement, specifically comprising:

[0035] The main unit 1 comprises a main connecting pipe 11, on which a fluid metering device body 12 is disposed, and the left and right ends of the main connecting pipe 11 are respectively fixedly connected with a first connecting pipe 13 and a second connecting pipe 14;

[0036] The installation unit 2 includes a second flange 23 rotatably disposed on the first connecting pipe 13 and the second connecting pipe 14, a water pipe 21 disposed on one side of the second flange 23, a first flange 22 fixedly disposed on the water pipe 21, and an installation assembly 24 disposed between the first flange 22 and the second flange 23 for installation;

[0037] The closing unit 3 includes a block 31 arranged in the main connecting pipe 11 for closing the pipeline, a plurality of connecting rods 32 fixedly arranged on the block 31, a plurality of telescopic components 33 arranged in the first connecting pipe 13 for the connecting rods 32 to slide, and a charging component 34 arranged on the first connecting pipe 13 for driving the telescopic components 33.

[0038] The mounting assembly 24 includes a plurality of connecting blocks 242, which are fixedly connected to the second flange 23. A clamping plate 243 is fixedly connected to the connecting block 242. A plurality of push rods 244 are fixedly connected to a side wall of the clamping plate 243 close to the second flange 23. A plurality of arc-shaped openings 245 are provided on the first flange 22, which match the clamping plate 243. A plurality of arc-shaped clamping blocks 246 are fixedly connected to the inner side wall of the arc-shaped opening 245. An inclined surface 247 is provided on the arc-shaped clamping block 246. The push rod 244 cooperates with the inclined surface 247, so that when the second flange 23 rotates, the connecting block 242 can be driven to rotate, so that the push rod 244 rotates with the clamping plate 243. Through contact with the inclined surface 247, the second flange 23 and the first flange 22 are gradually and tightly fitted, and the installation is completed. The operation is simple and convenient.

[0039] A threaded sleeve 241 is fixedly connected to the second flange 23, and the threaded sleeve 241 is threadedly connected to the first connecting pipe 13, so that a user can rotate the threaded sleeve 241 to drive the second flange 23 to rotate, and the threaded connection between the threaded sleeve 241 and the first connecting pipe 13 prevents the threaded sleeve 241 from rotating at will.

[0040] The telescopic assembly 33 includes a hollow rod 331, which is fixedly connected to the inner wall of the first connecting tube 13, a first piston plate 332 is fixedly connected inside the hollow rod 331, the connecting rod 32 is fixedly connected to the first piston plate 332, and the connecting rod 32 slides and penetrates the hollow rod 331, and a first spring 333 is fixedly connected between the first piston plate 332 and the inner wall of the hollow rod 331, so that when the device is connected and the water flows from left to right, under the action of the first spring 333 and the water flow, the block 31 is located in the main connecting tube 11, so that the water can pass smoothly, and when the air pressure on the right side of the first piston plate 332 increases, the first piston plate 332 can be squeezed to move to the left, driving the connecting rod 32 to move to the left, so that the block 31 moves to the left until it is against the inner wall of the first connecting tube 13, so that the channel is closed.

[0041] The charging assembly 34 includes a rotating shaft 341, which is rotatably connected to the first connecting tube 13. An impeller 342 is fixedly connected to the rotating shaft 341. A semicircular plate 343 is fixedly connected to the inner wall of the first connecting tube 13 on one side of the impeller 342. A plurality of rectangular sleeve rods 344 are fixedly connected to the outer wall of the first connecting tube 13. The rotating shaft 341 is rotatably inserted into the rectangular sleeve rod 344. Cams 345 are fixedly connected at both ends of the rotating shaft 341. The rectangular sleeve rod 344 is provided with a cam that cooperates with the cam 345. The energy storage component 346, the inner wall of the right side of the rectangular sleeve rod 344, the side wall of the first connecting tube 13 and the side wall of the hollow rod 331 are jointly provided with an air vent 348, and an electromagnetic valve 348-1 is arranged in the air vent 348, so that when the device is in use, the flow of liquid can drive the impeller 342 to rotate, so that the rotating shaft 341 rotates, and the cam 345 rotates, so that the energy storage component 346 on one side of the cam 345 is inflated and stores energy. When it is needed, the electromagnetic valve 348-1 is opened to allow gas to enter the hollow rod 331.

[0042] The energy storage member 346 includes a second piston plate 346-1, which is slidably connected to the inner wall of the rectangular sleeve rod 344. A plurality of circular openings 346-2 are provided on the rectangular sleeve rod 344 on the right side of the second piston plate 346-1. A fixing plate 346-3 is fixedly connected to the inner wall of the rectangular sleeve rod 344 on the right side of the circular openings 346-2. A second spring 346-5 is fixedly connected between the fixing plate 346-3 and the second piston plate 346-1. An air delivery pipe 346-4 is fixedly inserted through the fixing plate 346-3. A one-way valve is provided in the tube 346-4, so that when the rotating shaft 341 rotates, the cam 345 is driven to rotate, so that when the cam 345 contacts the second piston plate 346-1, the second piston plate 346-1 is squeezed to move to the right, and the gas on the left side of the fixed plate 346-3 is squeezed into the right side of the fixed plate 346-3 for storage. When the cam 345 no longer contacts the second piston plate 346-1, the second piston plate 346-1 moves to the left under the action of the second spring 346-5, and this reciprocating process causes the air pressure on the right side of the fixed plate 346-3 to continue to increase.

[0043] A first air outlet pipe 347 is fixedly inserted on the side wall of the rectangular sleeve rod 344 between the second piston plate 346-1 and the fixed plate 346-3. A pressure relief valve is provided in the first air outlet pipe 347, so that when a certain amount of gas is stored on the right side of the fixed plate 346-3, the squeezed gas can be discharged to the outside through the first air outlet pipe 347 as the second piston plate 346-1 moves left and right, thereby improving the safety of the device.

[0044] A second air outlet pipe 349 is fixedly inserted into the right side wall of the rectangular sleeve rod 344 , and a screw cap 349 - 1 is threadedly provided on the second air outlet pipe 349 , so that the user can adjust the air pressure inside the rectangular sleeve rod 344 and the hollow rod 331 by opening 349 - 1 .

[0045] In the present invention, a method for using a fluid metering device with accurate measurement includes the following steps:

[0046] S1. When in use, pass the clamping plate 243 through the arc-shaped opening 245, then rotate the threaded sleeve 241 to rotate the second flange 23, drive the connecting block 242 to rotate, and make the support rod 244 rotate together with the clamping plate 243. When the clamping plate 243 contacts the inclined surface 247, the second flange 23 and the first flange 22 gradually fit closely together, and the installation is completed. The operation is simple and convenient.

[0047] S2. After the installation is completed, open the valve and start the fluid metering device body 12 to accurately measure the fluid in the main connecting pipe 11;

[0048] S3. When the liquid flows from left to right, the impeller 342 is driven to rotate, so that the rotating shaft 341 rotates, and the cam 345 is driven to rotate, so that when the cam 345 contacts the second piston plate 346-1, the second piston plate 346-1 is squeezed to move rightward, and the gas on the left side of the fixed plate 346-3 is squeezed into the right side of the fixed plate 346-3 for storage. When the cam 345 is no longer in contact with the second piston plate 346-1, the second piston plate 346-1 moves to the left under the action of the second spring 346-5. This reciprocating process increases the air pressure on the right side of the fixed plate 346-3, and stores energy.

[0049] S4. When encountering an emergency, the user can directly activate the solenoid valve 348-1, so that the gas stored on the right side of the fixed plate 346-3 can directly enter the space on the right side of the first piston plate 332 in the hollow rod 331 through the vent 348, squeezing the first piston plate 332 to move to the left, driving the connecting rod 32 to move to the left, and causing the block 31 to move to the left until it is against the inner wall of the first connecting pipe 13.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fluid metering device with precise measurement, characterized in that: Specifically include: The main unit (1) comprises a main connecting pipe (11), on which a fluid metering device body (12) is provided, and the left and right ends of the main connecting pipe (11) are respectively fixedly connected to a first connecting pipe (13) and a second connecting pipe (14); The installation unit (2) comprises a second flange (23) rotatably arranged on the first connecting pipe (13) and the second connecting pipe (14), a water pipe (21) arranged on one side of the second flange (23), a first flange (22) fixedly arranged on the water pipe (21), and an installation component (24) arranged between the first flange (22) and the second flange (23) for installation; The closing unit (3) comprises a stopper (31) arranged in the main connecting pipe (11) for closing the pipeline, a plurality of connecting rods (32) fixedly arranged on the stopper (31), a plurality of telescopic components (33) arranged in the first connecting pipe (13) for sliding the connecting rods (32), and an energy charging component (34) arranged on the first connecting pipe (13) for driving the telescopic components (33); The energy charging component (34) comprises a rotating shaft (341), the rotating shaft (341) is rotatably connected to the first connecting tube (13), an impeller (342) is fixedly connected to the rotating shaft (341), a semicircular plate (343) is fixedly connected to the inner wall of the first connecting tube (13) on one side of the impeller (342), a plurality of rectangular sleeve rods (344) are fixedly connected to the outer wall of the first connecting tube (13), the rotating shaft (341) is rotatably inserted through the rectangular sleeve rods (344), cams (345) are fixedly connected at both ends of the rotating shaft (341), an energy storage member (346) matching the cam (345) is provided in the rectangular sleeve rod (344), a vent (348) is provided on the inner wall of the right side of the rectangular sleeve rod (344), the side wall of the first connecting tube (13) and the side wall of the hollow rod (331), and a solenoid valve (348-1) is provided in the vent (348); The energy storage member (346) comprises a second piston plate (346-1), the second piston plate (346-1) is slidably connected to the inner wall of the rectangular sleeve rod (344), a plurality of circular openings (346-2) are provided on the rectangular sleeve rod (344) on the right side of the second piston plate (346-1), a fixed plate (346-3) is fixedly connected to the inner wall of the rectangular sleeve rod (344) on the right side of the circular openings (346-2), a second spring (346-5) is fixedly connected between the fixed plate (346-3) and the second piston plate (346-1), an air supply pipe (346-4) is fixedly inserted through the fixed plate (346-3), and a one-way valve is provided in the air supply pipe (346-4); A first air outlet pipe (347) is fixedly inserted through the side wall of the rectangular sleeve rod (344) between the second piston plate (346-1) and the fixed plate (346-3), and a pressure relief valve is provided in the first air outlet pipe (347).

2. A fluid metering device with precise measurement according to claim 1, characterized in that: The mounting assembly (24) comprises a plurality of connection blocks (242), wherein the connection blocks (242) are fixedly connected to the second flange (23), a clamping plate (243) is fixedly connected to the connection block (242), a plurality of push rods (244) are fixedly connected to a side wall of the clamping plate (243) close to the second flange (23), a plurality of arc-shaped openings (245) are provided on the first flange (22), the arc-shaped openings (245) match the clamping plate (243), a plurality of arc-shaped clamping blocks (246) are fixedly connected to the inner side wall of the arc-shaped opening (245), the arc-shaped clamping blocks (246) are provided with an inclined surface (247), and the push rods (244) match the inclined surface (247).

3. A fluid metering device with precise measurement according to claim 2, characterized in that: A threaded sleeve (241) is fixedly connected to the second flange (23), and the threaded sleeve (241) is threadedly connected to the first connecting pipe (13).

4. A fluid metering device with precise measurement according to claim 3, characterized in that: The telescopic assembly (33) comprises a hollow rod (331), the hollow rod (331) being fixedly connected to the inner wall of the first connecting tube (13), a first piston plate (332) being fixedly connected inside the hollow rod (331), the connecting rod (32) being fixedly connected to the first piston plate (332), and the connecting rod (32) being slidably inserted into the hollow rod (331), and a first spring (333) being fixedly connected between the first piston plate (332) and the inner wall of the hollow rod (331).

5. The fluid metering device with high measurement accuracy according to claim 1, characterized in that: A second air outlet pipe (349) is fixedly inserted into the right side wall of the rectangular sleeve rod (344), and a screw cap (349-1) is threadedly provided on the second air outlet pipe (349).

6. The method for using the fluid metering device with high measurement accuracy according to claim 4, characterized in that: The specific steps include: S1. When in use, the clamping plate (243) is passed through the arc-shaped opening (245), and then the threaded sleeve (241) is rotated to rotate the second flange (23), thereby driving the connecting block (242) to rotate, so that the support rod (244) rotates together with the clamping plate (243). When the clamping plate (243) contacts the inclined surface (247), the second flange (23) and the first flange (22) gradually fit closely together, and the installation is completed. The operation is simple and convenient. S2. After the installation is completed, the valve is opened and the fluid metering device body (12) is started to accurately measure the fluid in the main connecting pipe (11); S3. When the liquid flows from left to right, the impeller (342) is driven to rotate, so that the rotating shaft (341) is rotated, and the cam (345) is driven to rotate, so that when the cam (345) contacts the second piston plate (346-1), the second piston plate (346-1) is squeezed to move rightward, and the gas on the left side of the fixed plate (346-3) is squeezed into the right side of the fixed plate (346-3) for storage. When the cam (345) is no longer in contact with the second piston plate (346-1), the second piston plate (346-1) moves to the left side under the action of the second spring (346-5), and this reciprocating process causes the gas pressure on the right side of the fixed plate (346-3) to increase continuously, thereby storing energy. S4. When an emergency occurs, the user can directly activate the solenoid valve (348-1), so that the gas stored on the right side of the fixed plate (346-3) can directly enter the space on the right side of the first piston plate (332) in the hollow rod (331) through the vent (348), pressing the first piston plate (332) to move leftward, driving the connecting rod (32) to move leftward, and causing the stopper (31) to move leftward until it contacts the inner wall of the first connecting pipe (13).

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