Flow instrument for field measurement and measurement method

Abstract

The invention relates to the technical field of flow instruments, and discloses a flow instrument for field measurement and a measurement method.The flow instrument comprises a runner pipe, a turbine arranged in the runner pipe, a sensor arranged on the runner pipe, a dial plate arranged on the runner pipe, a driving component arranged on the runner pipe and a cleaning component arranged on the driving component; according to the flow meter, the filter cartridge is arranged, and ore particles in water to enter the flow pipe are filtered out through the filter tank, so that the situation that a turbine is abraded by the ore particles, and consequently rotation unbalance of the turbine is caused is avoided, the service life of the turbine is prolonged, and meanwhile the measurement precision of the flow meter is improved; operators can accurately monitor the displacement, excessive water accumulation in a mine is avoided, and the mining efficiency of the mine is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of flow meters, in particular to a flow meter for on-site measurement and a measuring method. Background Art

[0002] In the mining industry, whether it is a coal mine, a metal mine or a non-metallic mine, the mine drainage system is crucial. During the mining process, the mine will continuously generate groundwater influx, and pumps are needed to drain the water to ensure the safety of underground operations.

[0003] Mine flow meters are used to measure the drainage flow of pumps. They can monitor the drainage volume in real time, so as to reasonably arrange the operation of pumping equipment and avoid water accumulation in mines.

[0004] During the mining process, the ore is broken into particles of different sizes by blasting and enters the water body. After the ore particles enter the turbine flow meter with the water flow, they will collide and rub against the turbine blades due to their certain hardness and irregular shape. Under the long-term action, the surface material of the blades will gradually be worn away, causing the original balanced rotation state of the turbine to be destroyed, which in turn leads to a decrease in the measurement accuracy of the flow meter, resulting in excessive water accumulation inside the mine, affecting the normal operation in the mine. Summary of the invention

[0005] The object of the present invention is to provide a flow meter and a measuring method for on-site measurement to solve the problems mentioned in the above process.

[0006] To achieve the above object, the present invention provides the following technical solution: a flow meter for field measurement, comprising a flow pipe, a turbine arranged in the flow pipe, a sensor arranged on the flow pipe, a dial arranged on the flow pipe, a driving component arranged on the flow pipe, a cleaning component arranged on the driving component, and an exhaust component arranged on the cleaning component;

[0007] The cleaning component includes a water inlet pipe, an outer cylinder arranged on the water inlet pipe, an inner cylinder arranged in the outer cylinder, a guide cylinder arranged in the inner cylinder, an opening and closing assembly arranged in the inner cylinder, an inner plate arranged in the inner cylinder, and a penetrating rod arranged on the inner plate;

[0008] The water inlet pipe is provided with a filter box, a filter cartridge arranged in the filter box, and a filter plate arranged in the filter cartridge.

[0009] As a preferred solution of the flow meter for on-site measurement described in the present invention, one end of the guide cylinder is provided with a guide groove 1, the other end of the guide cylinder is provided with a guide groove 2, and the inner plate is provided with a guide rod.

[0010] As a preferred solution of the flow meter for on-site measurement described in the present invention, the opening and closing assembly includes an opening and closing plate, a rotating plate arranged on the opening and closing plate, an air hole 1 arranged on the opening and closing plate, a mounting ring arranged on the opening and closing plate, an opening and closing leaf arranged on the mounting ring, and an opening and closing rod arranged on the opening and closing leaf.

[0011] As a preferred solution of the flow meter for on-site measurement described in the present invention, wherein: air hole 2 is arranged on the inner cylinder, air hole 3 is arranged on the inner cylinder, and air hole 4 is arranged on the guide cylinder.

[0012] As a preferred solution of the flow meter for on-site measurement described in the present invention, a telescopic rod is arranged on the inner plate, a driving box is arranged on the flow pipe, and a drainage box is arranged on the driving box.

[0013] As a preferred solution of the flow meter for on-site measurement described in the present invention, the driving component includes a pneumatic cylinder, a moving bar arranged on the pneumatic cylinder, a contact axis arranged on the moving bar, a ventilation groove arranged on the pneumatic cylinder, and an air sealing plate arranged on the pneumatic cylinder.

[0014] As a preferred solution of the flow meter for field measurement described in the present invention, the driving component further includes a driving wheel, an eccentric wheel arranged on the driving wheel, an eccentric rod arranged on the eccentric wheel, and a push rod arranged on the eccentric rod.

[0015] As a preferred solution of the flow meter for on-site measurement described in the present invention, the exclusion component includes a top plate, a horn bracket arranged on the filter box, an L-shaped gear rod arranged on the horn bracket, and an elastic cylinder arranged on the top plate.

[0016] As a preferred solution of the flow meter for on-site measurement described in the present invention, the exclusion component also includes a cleaning rod, a scraper bar arranged on the cleaning rod, a cross bar arranged on the cleaning rod, a spiral cylinder arranged on the horn rack, a spiral plate arranged in the spiral cylinder, and an insertion rod arranged on the spiral plate.

[0017] To achieve the above object, the present invention provides the following technical solution: a measurement method of a flow meter for field measurement, comprising the following measurement method:

[0018] First, connect one end of the water inlet pipe to the water outlet of the water pump, and then the water enters the water inlet pipe from the water outlet of the water pump, and then the water enters the filter cartridge through the water inlet pipe. As the water continues to enter the filter cartridge, the water passes through the filter tank and enters the filter cavity. Finally, the water enters the drainage box from the filter cavity. The water entering the drainage box passes through the drive box, and the water in the drive box enters the circulation pipe, and then the water drives the turbine to rotate.

[0019] When the water passes through the filter tank and enters the filter chamber, the mineral particles in the water will be intercepted by the filter cartridge in the filter chamber;

[0020] When water enters the flow pipe from the drive box, the water drives the drive wheel to rotate, and the drive wheel drives the eccentric wheel to rotate synchronously, and then the eccentric rod pushes the push rod, and the push rod drives the piston to slide linearly back and forth in the air pressure cylinder;

[0021] When the piston moves in the direction away from the eccentric wheel, the gas in the air cylinder will be compressed into the opening and closing chamber. When the piston contacts the contact shaft away from the eccentric wheel, the moving bar will move synchronously with the piston, and the spring piece 1 will be stuck in the slot. At the same time, the moving bar will push the air sealing plate, and the spring piece 2 will be deformed. The air sealing plate and the ventilation groove are misaligned, and the external gas can enter the air cylinder through the ventilation groove.

[0022] When the piston moves toward the direction close to the eccentric wheel, the piston will contact the contact shaft close to the eccentric wheel, the moving bar moves synchronously with the piston, and then the moving bar separates from the air sealing plate, and the air sealing plate blocks the air exchange groove again;

[0023] The gas is continuously introduced into the opening and closing chamber, and the inner plate moves toward the direction of the water inlet pipe under the push of the gas pressure. At this time, the inner plate will push the filter plate through the penetration rod, and then the filter plate will scrape off the ore particles attached to the filter tank;

[0024] When the inner plate moves to a proper position, the spring 1 pushes the guide rod, causing the guide rod to extend into the guide groove 1, and then the guide rod slides along the guide groove 1, and the guide rod forces the guide cylinder to rotate;

[0025] When the guide cylinder rotates, the gas in the outer cavity can enter the inner cavity through the air hole three and the air hole four, and then the multiple opening and closing leaves will block the air hole one, and the gas entering the opening and closing cavity will enter the outer cavity through the air hole two, and then enter the inner cavity through the air hole three and the air hole four, and then the inner plate will be reset under the action of the gas pressure;

[0026] When the inner plate moves up and down, the telescopic rod will contact the side wall of the guide cylinder and the opening and closing assembly respectively, and then the telescopic grooves 2 at both ends of the telescopic rod will be connected to the inner cavity respectively, and the gas in the inner cavity can be discharged from the one-way valve 1 through the inner groove and the through groove;

[0027] When the inner plate descends to the area of ​​the second guide groove, the guide rod will extend into the second guide groove, slide in the second guide groove and force the guide cylinder to rotate and reset. At this time, the multiple hinge leaves are separated from each other, the positions of the third and fourth air holes are misaligned, and the inner plate rises again under the push of air pressure.

[0028] When the filter plate rises to contact with the cleaning rod, the third spring is deformed, the cleaning rod drives the cross bar to rise, and then the cross bar contacts with the L-shaped lever, causing the L-shaped lever to rotate and thus detach from the top plate. At the same time, the cross bar moves to the limit position, the top plate rises, and the second spring is deformed. At this time, the upper surface of the filter plate slides to the outside of the filter box.

[0029] At the same time, when the push rod rises, the insertion rod will go deep into the cleaning rod. When the cleaning rod moves to contact the spiral plate, the cleaning rod will push the spiral plate, causing the spiral shaft to slide in the spiral groove, and then the spiral plate will drive the cleaning rod and the scraper to rotate.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. By setting up a filter cartridge and using the filter tank to filter out the ore particles in the water to be introduced into the circulation pipe, the ore particles are prevented from wearing the turbine and causing the turbine to rotate unbalanced, thus increasing the service life of the turbine and improving the measurement accuracy of the flow meter. The operators can accurately monitor the drainage volume, avoid excessive water accumulation in the mine, and ensure the efficiency of mine mining;

[0032] 2. The driving wheel is driven by the water to rotate, so that the gas in the air pressure cylinder is continuously passed into the opening and closing chamber, so that the inner plate drives the filter plate to move back and forth, thereby cleaning the ore particles attached to the filter tank, avoiding excessive accumulation of ore particles in the filter tank, resulting in a decrease in the water flow entering the circulation pipe, improving the smoothness of fluid circulation, and then ensuring the normal rotation of the turbine, so as to accurately monitor the flow of the water body;

[0033] 3. Push the cleaning rod through the filter plate to release the limit on the top plate by the L-shaped lever, so that the upper surface of the filter plate can slide to the outside of the filter box, and then use the spiral plate to slide in the spiral cylinder, so that the insertion rod drives the cleaning rod and the scraper to remove the ore particles on the surface of the filter plate to a certain extent, avoiding excessive ore particle content in the filter cylinder, which causes the ore particles to block the filter tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the flow meter for on-site measurement of the present invention.

[0035] Figure 2 It is a structural schematic diagram of a half-section view of a flow tube of a flow meter for on-site measurement of the present invention.

[0036] Figure 3It is a schematic structural diagram of the inner cylinder and outer cylinder of the flow meter for on-site measurement of the present invention.

[0037] Figure 4 The present invention is a schematic structural diagram of the explosion of the inner cylinder, outer cylinder and guide cylinder of the flow meter used for on-site measurement.

[0038] Figure 5 It is a structural schematic diagram of the opening and closing assembly of the flow meter for on-site measurement of the present invention.

[0039] Figure 6 It is a structural schematic diagram of a partial half-section of the inner plate of a flow meter for on-site measurement of the present invention.

[0040] Figure 7 It is a schematic structural diagram of the flow meter filter cartridge for on-site measurement of the present invention.

[0041] Figure 8 It is a schematic structural diagram of a half-section view of a flow meter driving box for on-site measurement of the present invention.

[0042] Fig. 9 The flow meter used for on-site measurement of the present invention Figure 8 Schematic diagram of the structure enlarged at point A in the middle.

[0043] Fig.10 It is a schematic structural diagram of the flow meter for field measurement of the present invention excluding components.

[0044] In the figure:

[0045] 1. Flow pipe; 11. Turbine; 12. Sensor; 13. Dial; 14. Drive box; 15. Drainage box;

[0046] 2. Driving component; 21. Air cylinder; 22. Moving bar; 23. Contact shaft; 24. Ventilation groove; 25. Air sealing plate; 26. Driving wheel; 27. Eccentric wheel; 28. Eccentric rod; 29. ​​Push rod;

[0047] 3. Cleaning parts; 31. Water inlet pipe; 32. Outer cylinder; 33. Inner cylinder; 331. Air hole 2; 332. Air hole 3; 34. Guide cylinder; 341. Guide groove 1; 342. Guide groove 2; 343. Air hole 4; 35. Opening and closing assembly; 351. Opening and closing plate; 352. Rotating plate; 353. Air hole 1; 354. Mounting ring; 355. Opening and closing leaf; 356. Opening and closing rod; 36. Inner plate; 361. Through rod; 362. Guide rod; 363. Telescopic rod; 37. Filter box; 371. Filter cylinder; 372. Filter plate;

[0048] 4. Excluding parts; 41. Top plate; 42. Claw rack; 421. L-shaped lever; 43. Elastic cylinder; 44. Cleaning rod; 441. Scraper strip; 442. Cross bar; 45. Spiral cylinder; 46. Spiral plate; 47. Insert rod. DETAILED DESCRIPTION

[0049] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is by no means limited to any specific configuration and algorithm proposed below, but covers any modification, replacement and improvement of elements, parts and algorithms without departing from the spirit of the present invention. In the accompanying drawings and the following description, known structures and technologies are not shown to avoid unnecessary ambiguity to the present invention.

[0050] Example 1

[0051] Reference Figure 1-8 , which is the first embodiment of the present invention, provides a flow meter for field measurement, the flow meter for field measurement includes a flow tube 1, a turbine 11 arranged in the flow tube 1, a sensor 12 arranged on the flow tube 1, and a dial 13 arranged on the flow tube 1. A tripod is symmetrically arranged inside the flow tube 1, and the turbine 11 shaft is rotatably arranged on the tripod. The turbine 11 shaft penetrates the turbine 11, and the turbine 11 rotates coaxially with the turbine 11 shaft. A plurality of blades are arranged in an array on the turbine 11, and the blades are preferably made of 430 stainless steel, which has good magnetic conductivity and corrosion resistance. The sensor 12 is preferably a magneto-electric induction sensor 12, and a display is arranged on the dial 13. The sensor 12 is electrically connected to the dial 13. When the turbine 11 rotates under the impetus of the liquid, the blades on the turbine 11 will periodically cut the magnetic lines of force, and the sensor 12 will sense the signal and transmit it to the display of the dial 13, so as to measure the liquid flow rate. A driving component 2 is arranged on the flow tube 1, a cleaning component 3 is arranged on the driving component 2, and an exclusion component 4 is arranged on the cleaning component 3;

[0052] The cleaning component 3 includes a water inlet pipe 31, an outer cylinder 32 arranged on the water inlet pipe 31, an inner cylinder 33 arranged in the outer cylinder 32, a guide cylinder 34 arranged in the inner cylinder 33, an opening and closing assembly 35 arranged in the inner cylinder 33, an inner plate 36 arranged in the inner cylinder 33, and a through rod 361 arranged on the inner plate 36. The outer cylinder 32 is arranged at the lower end of the water inlet pipe 31, the inner cylinder 33 is arranged on the inner side of the outer cylinder 32, and the outer side wall of the inner cylinder 33 and the inner side wall of the outer cylinder 32 form an outer cavity, an inner cavity is arranged inside the inner cylinder 33, the guide cylinder 34 is rotatably arranged in the inner cavity, the opening and closing assembly 35 is arranged at one end of the guide cylinder 34, the inner plate 36 is slidably arranged in the inner cavity, and the opening and closing assembly 35 and the inner cavity form an opening and closing cavity;

[0053] The water inlet pipe 31 is provided with a filter box 37, a filter cartridge 371 arranged in the filter box 37, and a filter plate 372 arranged in the filter cartridge 371. The filter box 37 is arranged at the upper end of the water inlet pipe 31, and one end of the filter cartridge 371 is connected to the inside of the water inlet pipe 31. Water can enter the filter cartridge 371 through the water inlet pipe 31. The outer side wall of the filter cartridge 371 and the inner side wall of the filter box 37 form a filter chamber. The filter cartridge 371 is provided with an array of filter grooves. Water entering the filter cartridge 371 can enter the filter chamber through the filter grooves. The penetrating rod 361 is arranged on one side of the inner plate 36. The end of the penetrating rod 361 away from the inner plate 36 penetrates the inner cylinder 33, the outer cylinder 32, and the water inlet pipe 31. The penetrating rod 361 extends to the filter cartridge 371, and the penetrating rod 361 is connected to the filter plate 372. The penetrating rod 361 is slidably connected with the inner cylinder 33, the outer cylinder 32, and the water inlet pipe 31.

[0054] A guide groove 1 341 is provided at one end of the guide cylinder 34, and a guide groove 2 342 is provided at the other end of the guide cylinder 34. A guide rod 362 is provided on the inner plate 36. The guide groove 1 341 is symmetrically arranged at the end of the guide cylinder 34 close to the water inlet pipe 31, and the guide groove 2 342 is symmetrically arranged at the end of the guide cylinder 34 away from the water inlet pipe 31. The guide rod 362 is symmetrically arranged on the inner plate 36. Inner holes are symmetrically opened on the side wall of the inner plate 36, and a spring 1 is provided in the inner hole. The end of the spring 1 away from the inner plate 36 is connected to the guide rod 362, and the guide rod 362 can extend into the guide groove 1 341 and the guide groove 2 342 respectively and slide.

[0055] The opening and closing assembly 35 includes an opening and closing plate 351, a rotating plate 352 arranged on the opening and closing plate 351, an air hole 353 arranged on the opening and closing plate 351, a mounting ring 354 arranged on the opening and closing plate 351, an opening and closing leaf 355 arranged on the mounting ring 354, and an opening and closing rod 356 arranged on the opening and closing leaf 355. The opening and closing plate 351 is connected to the inner cylinder 33, and a positioning shaft is symmetrically arranged on the opening and closing plate 351. The rotating plate 352 is rotatably arranged on the opening and closing plate 351, and an arc-shaped The positioning shaft is slidably arranged in the arc groove, the mounting ring 354 is arranged on the outside of the air hole 353, the opening and closing leaves 355 are hingedly arranged on the mounting ring 354, and a plurality of opening and closing leaves 355 are arranged in an array on the mounting ring 354. The locking rod is hingedly arranged with the opening and closing leaves 355, and one end of the opening and closing rod 356 away from the hinge 355 is hingedly matched with the rotating plate 352, and the rotating plate 352 is connected to the guide cylinder 34. When the rotating plate 352 rotates a certain angle, the plurality of opening and closing leaves 355 can approach each other and block the air hole 353.

[0056] The inner cylinder 33 is provided with a second air hole 331, a third air hole 332 provided on the inner cylinder 33, and a fourth air hole 343 provided on the guide cylinder 34. The second air hole 331 can make the outer cavity and the opening and closing cavity communicate with each other. Initially, the positions of the third air hole 332 and the fourth air hole 343 are staggered with each other. When the guide cylinder 34 rotates a certain angle, the third air hole 332 can overlap with the fourth air hole 343.

[0057] The inner plate 36 is provided with a telescopic rod 363, the flow pipe 1 is provided with a driving box 14, and a drainage box 15 is provided on the driving box 14. An inner groove is provided in the inner plate 36, a through groove is provided in the through rod 361, a one-way valve 1 is provided in the through groove, and the one-way valve 1 is provided at the end of the through rod 361 away from the inner plate 36, the through groove and the inner groove are interconnected, through holes are symmetrically provided on the inner plate 36, the through holes are interconnected with the inner groove, the telescopic rod 363 is slidably provided in the through hole, iron sheets are provided at both ends of the telescopic rod 363, and the inner plate 36 is embedded with a magnet sheet, a telescopic slot 1 is opened in the telescopic rod 363, and a telescopic slot 2 is symmetrically opened on the telescopic rod 363. The telescopic slot 2 is interconnected with the telescopic slot 1, the driving box 14 is connected with the inside of the circulation pipe 1, the drainage box 15 is connected with the inside of the driving box 14, and the drainage box 15 is connected with the inside of the filter box 37. The water in the filter box 37 can be driven by the drainage box 15 into the driving box 14, and then enter the circulation pipe 1 through the driving box 14, and finally the water is discharged through the end of the circulation pipe 1 away from the driving box 14.

[0058] During use, first connect one end of the water inlet pipe 31 to the water outlet end of the water pump, then the water enters the water inlet pipe 31 from the water outlet end of the water pump, and then the water enters the filter cartridge 371 through the water inlet pipe 31. As the water continues to enter the filter cartridge 371, the water passes through the filter tank and enters the filter cavity. Finally, the water enters the drainage box 15 from the filter cavity. The water entering the drainage box 15 passes through the drive box 14. The water in the drive box 14 enters the circulation pipe 1 again. Then the water drives the turbine 11 to rotate. During the rotation of the turbine 11, the blades will continuously cut the magnetic lines of force, causing the sensor 12 to transmit the detected electrical signal to the dial 13, and then the water flow through the circulation pipe 1 will be displayed on the display.

[0059] When water enters the filter chamber through the filter tank, the ore particles in the water will be intercepted by the filter cartridge 371 in the filter chamber, and the ore particles will adhere to the filter tank under the action of the water flow. When the water enters the flow pipe 1 from the drive box 14, the flow of the water will drive the drive component 2, causing the gas to be continuously passed into the opening and closing chamber.

[0060] When the gas pressure in the opening and closing chamber increases, the gas pressure in the outer chamber will also increase. At this time, the positions of the air hole 332 and the air hole 4 343 are staggered, and at this time, the multiple opening and closing leaves 355 are separated from each other, so that the gas pressure in the inner chamber increases. The inner plate 36 moves toward the direction of the water inlet pipe 31 under the push of the gas pressure. At this time, the inner plate 36 will push the filter plate 372 through the through rod 361, and then the filter plate 372 will scrape off the ore particles attached to the filter tank;

[0061] When the inner plate 36 moves to a proper position, the spring 1 pushes the guide rod 362, causing the guide rod 362 to extend into the guide groove 1 341, and then the guide rod 362 slides along the guide groove 1 341, and the guide rod 362 forces the guide cylinder 34 to rotate;

[0062] When the guide cylinder 34 rotates, the positions of the air hole 332 and the air hole 4 343 gradually overlap, and the gas in the outer cavity can enter the inner cavity through the air hole 332 and the air hole 4 343. At the same time, the rotation of the guide cylinder 34 will drive the rotating plate 352 to rotate, and then the rotating plate 352 will pull the latch leaf through the opening and closing rod 356, and then the multiple opening and closing leaves 355 will gradually approach each other, and then the multiple opening and closing leaves 355 will block the air hole 1 353, and then the gas entering the opening and closing cavity will enter the outer cavity through the air hole 2 331, and then enter the inner cavity through the air hole 332 and the air hole 4 343, and then the inner plate 36 will be reset under the action of the gas pressure;

[0063] When the inner plate 36 moves up and down, the telescopic rod 363 will contact the side wall of the guide cylinder 34 and the opening and closing assembly 35 respectively, and then the telescopic grooves 2 at both ends of the telescopic rod 363 will be connected to the inner cavity respectively, and the gas in the inner cavity can be discharged from the one-way valve 1 through the inner groove and the through groove;

[0064] When the inner plate 36 descends to the point where the guide rod 362 is disengaged from the guide groove 1 341, the guide cylinder 34 will force the guide rod 362 to shrink into the inner hole. When the inner plate 36 descends to the area of ​​the guide groove 2 342, the guide rod 362 will extend into the guide groove 2 342, slide in the guide groove 2 342 and force the guide cylinder 34 to rotate and reset. At this time, the multiple opening and closing leaves 355 avoid each other, the air hole 332 is misaligned with the air hole 4 343, and the inner plate 36 rises again under the push of the air pressure.

[0065] Example 2

[0066] Reference Figure 1-9 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that:

[0067] The driving component 2 includes a pneumatic cylinder 21, a moving bar 22 arranged on the pneumatic cylinder 21, a contact shaft 23 arranged on the moving bar 22, a ventilation groove 24 arranged on the pneumatic cylinder 21, and a sealing plate 25 arranged on the pneumatic cylinder 21. The pneumatic cylinder 21 is arranged on the driving box 14, and the side wall of the pneumatic cylinder 21 is symmetrically provided with a slide groove, and a key groove is provided in the slide groove. The ventilation groove 24 is arranged in the slide groove, and a card groove is arranged in the slide groove. The moving bar 22 is slidably arranged in the slide groove, and a key groove is provided on the moving bar 22. Spring piece one, spring piece one can be stuck in the slot, the contact shaft 23 is symmetrically arranged on the moving bar 22, the moving bar 22 always blocks the key slot, the contact shaft 23 extends into the air pressure cylinder 21, the air sealing plate 25 is slidably arranged in the slide groove, the air sealing plate 25 must be provided with spring piece two, the air sealing plate 25 can seal the ventilation groove 24, the air pressure cylinder 21 is provided with a one-way valve two, the one-way valve two is connected to an air pipe, the end of the air pipe away from the air pressure cylinder 21 is connected to the inner cylinder 33, and the air pressure cylinder 21 is communicated with the inside of the opening and closing cavity.

[0068] The driving component 2 also includes a driving wheel 26, an eccentric wheel 27 arranged on the driving wheel 26, an eccentric rod 28 arranged on the eccentric wheel 27, and a push rod 29 arranged on the eccentric rod 28. The driving wheel 26 is rotatably arranged in the driving box 14, the driving wheel 26 is coaxially connected with the eccentric wheel 27, the eccentric rod 28 is hingedly arranged at the eccentric position of the eccentric wheel 27, the end of the eccentric rod 28 away from the eccentric wheel 27 is hinged to the push rod 29, and a piston is arranged at the end of the push rod 29 away from the eccentric rod 28. The piston is slidably arranged in the air pressure cylinder 21, and the piston is arranged between the two contact shafts 23.

[0069] During use, when water enters the circulation pipe 1 from the driving box 14, the water will drive the driving wheel 26 to rotate, and the rotation of the driving wheel 26 will drive the eccentric wheel 27 to rotate synchronously, and then the eccentric rod 28 will push the push rod 29, so that the push rod 29 drives the piston to slide linearly back and forth in the air pressure cylinder 21;

[0070] When the piston moves in the direction away from the eccentric wheel 27, the gas in the air cylinder 21 will be compressed into the opening and closing chamber. When the piston contacts the contact shaft 23 away from the eccentric wheel 27, the moving bar 22 will move synchronously with the piston, and the spring piece 1 is stuck in the slot. At the same time, the moving bar 22 will push the air sealing plate 25, and the spring piece 2 will deform. The air sealing plate 25 and the ventilation groove 24 are misaligned, and the external gas can enter the air cylinder 21 through the ventilation groove 24;

[0071] When the piston moves toward the direction close to the eccentric wheel 27, the piston will contact the contact shaft 23 close to the eccentric wheel 27, the moving bar 22 moves synchronously with the piston, and then the moving bar 22 is separated from the air sealing plate 25, and the air sealing plate 25 blocks the ventilation groove 24 again.

[0072] The remaining structures are the same as those of Example 1.

[0073] Example 3

[0074] Reference Figure 1-10 , which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that:

[0075] The exclusion component 4 includes a top plate 41, a horn frame 42 arranged on the filter box 37, an L-shaped shift rod 421 arranged on the horn frame 42, and an elastic cylinder 43 arranged on the top plate 41. A limit rod is arranged in an array on the filter box 37, the limit rod passes through the top plate 41, and a spring 2 is sleeved on the outer side of the limit rod. The horn frame 42 is arranged at the upper end of the top plate 41, and the elastic cylinder 43 is arranged on a side of the top plate 41 away from the filter box 37, and the elastic cylinder 43 is slidably connected to the horn frame 42, the L-shaped shift rod 421 is hingedly arranged on the horn frame 42, and a torsion spring is arranged at the connection between the L-shaped shift rod 421 and the horn frame 42.

[0076] The exclusion component 4 also includes a cleaning rod 44, a scraper strip 441 arranged on the cleaning rod 44, a cross bar 442 arranged on the cleaning rod 44, a spiral cylinder 45 arranged on the horn rack 42, a spiral plate 46 arranged in the spiral cylinder 45, and an insertion rod 47 arranged on the spiral plate 46. The cross bar 442 is engaged and rotatably connected with the cleaning rod 44. The cleaning rod 44 passes through the elastic cylinder 43 and the top plate 41. The scraper strip 441 is arranged in the filter box 37. A spring three is sleeved on the outer side of the cleaning rod 44. The insertion rod 47 is engaged and slidably arranged on the cleaning rod 44. The spiral cylinder 45 is symmetrically provided with spiral grooves, and the spiral plate 46 is symmetrically provided with spiral shafts, which are slidably arranged in the spiral grooves.

[0077] During use, when the filter plate 372 rises to contact the cleaning rod 44, the spring 3 is deformed, the cleaning rod 44 drives the cross bar 442 to rise, and then the cross bar 442 contacts the L-shaped gear rod 421, causing the L-shaped gear rod 421 to rotate, thereby separating from the top plate 41, and at the same time the cross bar 442 moves to the limit position, the top plate 41 rises, the spring 2 is deformed, and at this time the upper surface of the filter plate 372 slides to the outside of the filter box 37;

[0078] At the same time, when the push rod rises, the insertion rod 47 will penetrate into the cleaning rod 44. When the cleaning rod 44 moves to contact the spiral plate 46, the cleaning rod 44 will push the spiral plate 46, causing the spiral shaft to slide in the spiral groove, and then the spiral plate 46 will drive the cleaning rod 44 and the scraper bar 441 to rotate. At this time, the scraper bar 441 will scrape off the ore particles on the filter plate 372, and the ore particles will be thrown out under the action of centrifugal force.

[0079] The remaining structure is the same as that of Example 2.

[0080] Example 4

[0081] Reference Figure 1-10, which is a fourth embodiment of the present invention, provides: a measurement method of a flow meter for field measurement, comprising the following measurement method,

[0082] S1, first connect one end of the water inlet pipe 31 to the water outlet end of the water pump, then the water enters the water inlet pipe 31 from the water outlet end of the water pump, and then the water enters the filter cartridge 371 through the water inlet pipe 31, as the water continues to enter the filter cartridge 371, the water passes through the filter tank into the filter cavity, and finally the water enters the drainage box 15 from the filter cavity, the water entering the drainage box 15 passes through the drive box 14, the water in the drive box 14 enters the circulation pipe 1, and then the water drives the turbine 11 to rotate;

[0083] S2, when the water passes through the filter tank and enters the filter chamber, the ore particles in the water will be intercepted by the filter cartridge 371 in the filter chamber;

[0084] S3, when water enters the circulation pipe 1 from the driving box 14, the water drives the driving wheel 26 to rotate, and the driving wheel 26 drives the eccentric wheel 27 to rotate synchronously, and then the eccentric rod 28 pushes the push rod 29, and the push rod 29 drives the piston to slide linearly back and forth in the air cylinder 21;

[0085] S4, when the piston moves in the direction away from the eccentric wheel 27, the gas in the air cylinder 21 will be compressed into the opening and closing chamber. When the piston contacts the contact shaft 23 away from the eccentric wheel 27, the moving bar 22 will move synchronously with the piston, and the spring piece 1 is stuck in the slot. At the same time, the moving bar 22 will push the air sealing plate 25, and the spring piece 2 will be deformed. The air sealing plate 25 is misaligned with the ventilation groove 24, and the external gas can enter the air cylinder 21 through the ventilation groove 24;

[0086] S5, when the piston moves toward the direction close to the eccentric wheel 27, the piston will contact the contact shaft 23 close to the eccentric wheel 27, the moving bar 22 moves synchronously with the piston, and then the moving bar 22 separates from the air sealing plate 25, and the air sealing plate 25 blocks the ventilation groove 24 again;

[0087] S6, gas is continuously introduced into the opening and closing chamber, and the inner plate 36 moves toward the direction of the water inlet pipe 31 under the pushing of the gas pressure. At this time, the inner plate 36 will push the filter plate 372 through the through rod 361, and then the filter plate 372 will scrape off the ore particles attached to the filter tank;

[0088] S7, when the inner plate 36 moves to a proper position, the spring 1 pushes the guide rod 362, causing the guide rod 362 to extend into the guide groove 1 341, and then the guide rod 362 slides along the guide groove 1 341, and the guide rod 362 forces the guide cylinder 34 to rotate;

[0089] S8, when the guide cylinder 34 rotates, the gas in the outer cavity can enter the inner cavity through the air hole 332 and the air hole 4 343, and then the plurality of opening and closing leaves 355 will block the air hole 1 353, and the gas entering the opening and closing cavity will enter the outer cavity through the air hole 2 331, and then enter the inner cavity through the air hole 332 and the air hole 4 343, and then the inner plate 36 will be reset under the action of the gas pressure;

[0090] S9, when the inner plate 36 moves up and down, the telescopic rod 363 will contact the side wall of the guide cylinder 34 and the opening and closing assembly 35 respectively, and then the telescopic grooves 2 at both ends of the telescopic rod 363 will be connected to the inner cavity respectively, and the gas in the inner cavity can be discharged from the one-way valve 1 through the inner groove and the through groove;

[0091] S10, when the inner plate 36 descends to the area of ​​the second guide groove 342, the guide rod 362 will extend into the second guide groove 342, slide in the second guide groove 342 and force the guide cylinder 34 to rotate and reset, and the plurality of hinge leaves 355 will move away from each other, the air hole 332 and the air hole 4 343 will be misaligned, and the inner plate 36 will rise again under the push of the air pressure;

[0092] S11, when the filter plate 372 rises to contact with the cleaning rod 44, the spring 3 is deformed, the cleaning rod 44 drives the cross bar 442 to rise, and then the cross bar 442 contacts the L-shaped gear rod 421, causing the L-shaped gear rod 421 to rotate, thereby separating from the top plate 41, and at the same time the cross bar 442 moves to the limit position, the top plate 41 rises, the spring 2 is deformed, and at this time the upper surface of the filter plate 372 slides to the outside of the filter box 37;

[0093] S12, at the same time, when the push rod rises, the insertion rod 47 will penetrate into the cleaning rod 44. When the cleaning rod 44 moves to contact with the spiral plate 46, the cleaning rod 44 will push the spiral plate 46, causing the spiral shaft to slide in the spiral groove, and then the spiral plate 46 will drive the cleaning rod 44 and the scraper 441 to rotate.

[0094] Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on the study of the drawings, the specification and the claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other devices or steps; the indefinite article "a" does not exclude a plurality; the terms "first" and "second" are used to indicate names rather than to indicate any specific order. Any figure marks in the claims should not be construed as limiting the scope of protection. The functions of multiple parts appearing in the claims can be implemented by a single hardware or software module. The fact that certain technical features appear in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A flow meter for field measurement, comprising a flow pipe (1), a turbine (11) arranged in the flow pipe (1), a sensor (12) arranged on the flow pipe (1), and a dial (13) arranged on the flow pipe (1), characterized in that: The circulation pipe (1) is provided with a driving component (2), a cleaning component (3) provided on the driving component (2), and an exhaust component (4) provided on the cleaning component (3); The cleaning component (3) comprises a water inlet pipe (31), an outer cylinder (32) arranged on the water inlet pipe (31), an inner cylinder (33) arranged in the outer cylinder (32), a guide cylinder (34) arranged in the inner cylinder (33), an opening and closing assembly (35) arranged in the inner cylinder (33), an inner plate (36) arranged in the inner cylinder (33), and a penetrating rod (361) arranged on the inner plate (36); The water inlet pipe (31) is provided with a filter box (37), a filter cartridge (371) arranged in the filter box (37), and a filter plate (372) arranged in the filter cartridge (371).

2. A flow meter for on-site measurement according to claim 1, characterized in that: A first guide groove (341) is provided at one end of the guide cylinder (34), a second guide groove (342) is provided at the other end of the guide cylinder (34), and a guide rod (362) is provided on the inner plate (36).

3. A flow meter for on-site measurement according to claim 1, characterized in that: The opening and closing assembly (35) comprises an opening and closing plate (351), a rotating plate (352) arranged on the opening and closing plate (351), an air hole (353) arranged on the opening and closing plate (351), a mounting ring (354) arranged on the opening and closing plate (351), an opening and closing leaf (355) arranged on the mounting ring (354), and an opening and closing rod (356) arranged on the opening and closing leaf (355).

4. A flow meter for on-site measurement according to claim 1, characterized in that: The inner cylinder (33) is provided with a second air hole (331), a third air hole (332) provided on the inner cylinder (33), and a fourth air hole (343) provided on the guide cylinder (34).

5. The flow meter for on-site measurement according to claim 1, characterized in that: The inner plate (36) is provided with a telescopic rod (363), the flow pipe (1) is provided with a driving box (14), and a drainage box (15) is provided on the driving box (14).

6. A flow meter for on-site measurement according to claim 1, characterized in that: The driving component (2) includes a pneumatic cylinder (21), a moving bar (22) arranged on the pneumatic cylinder (21), a contact shaft (23) arranged on the moving bar (22), a ventilation groove (24) arranged on the pneumatic cylinder (21), and an air sealing plate (25) arranged on the pneumatic cylinder (21).

7. A flow meter for on-site measurement according to claim 1, characterized in that: The driving component (2) further comprises a driving wheel (26), an eccentric wheel (27) arranged on the driving wheel (26), an eccentric rod (28) arranged on the eccentric wheel (27), and a push rod (29) arranged on the eccentric rod (28).

8. A flow meter for on-site measurement according to claim 1, characterized in that: The exclusion component (4) comprises a top plate (41), a horn frame (42) arranged on the filter box (37), an L-shaped gear lever (421) arranged on the horn frame (42), and an elastic cylinder (43) arranged on the top plate (41).

9. A flow meter for on-site measurement according to claim 8, characterized in that: The removal component (4) further comprises a cleaning rod (44), a scraper strip (441) arranged on the cleaning rod (44), a cross bar (442) arranged on the cleaning rod (44), a spiral cylinder (45) arranged on the horn rack (42), a spiral plate (46) arranged in the spiral cylinder (45), and an insertion rod (47) arranged on the spiral plate (46).

10. A method for measuring a flow meter for on-site measurement according to any one of claims 1 to 9, comprising the following measuring method: First, one end of the water inlet pipe (31) is connected to the water outlet end of the water pump, and then water enters the water inlet pipe (31) from the water outlet end of the water pump, and then the water enters the filter cartridge (371) through the water inlet pipe (31). As the water continues to enter the filter cartridge (371), the water passes through the filter tank and enters the filter cavity. Finally, the water enters the drainage box (15) from the filter cavity. The water entering the drainage box (15) passes through the drive box (14). The water in the drive box (14) enters the circulation pipe (1), and then the water drives the turbine (11) to rotate. When the water passes through the filter tank and enters the filter chamber, the ore particles in the water will be intercepted by the filter cartridge (371) in the filter chamber; When water enters the flow pipe (1) from the drive box (14), the water drives the drive wheel (26) to rotate, and the drive wheel (26) drives the eccentric wheel (27) to rotate synchronously, and then the eccentric rod (28) pushes the push rod (29), and the push rod (29) drives the piston to slide linearly back and forth in the air pressure cylinder (21); When the piston moves in a direction away from the eccentric wheel (27), the gas in the air cylinder (21) will be compressed into the opening and closing chamber. When the piston contacts the contact shaft (23) away from the eccentric wheel (27), the moving bar (22) will move synchronously with the piston, and the spring piece 1 will be stuck in the slot. At the same time, the moving bar (22) will push the air sealing plate (25), and the spring piece 2 will be deformed. The air sealing plate (25) and the ventilation groove (24) are misaligned, and the external gas can enter the air cylinder (21) through the ventilation groove (24); When the piston moves toward the direction close to the eccentric wheel (27), the piston will contact the contact shaft (23) close to the eccentric wheel (27), and the moving bar (22) will move synchronously with the piston, and then the moving bar (22) will separate from the air sealing plate (25), and the air sealing plate (25) will block the air exchange groove (24) again; The gas is continuously introduced into the opening and closing chamber, and the inner plate (36) moves toward the direction of the water inlet pipe (31) under the pushing of the gas pressure. At this time, the inner plate (36) pushes the filter plate (372) through the through rod (361), and then the filter plate (372) scrapes off the ore particles attached to the filter tank; When the inner plate (36) moves to a proper position, the spring 1 pushes the guide rod (362), causing the guide rod (362) to extend into the guide groove 1 (341), and then the guide rod (362) slides along the guide groove 1 (341), and the guide rod (362) forces the guide cylinder (34) to rotate; When the guide cylinder (34) rotates, the gas in the outer cavity can enter the inner cavity through the air hole three (332) and the air hole four (343), and then the plurality of opening and closing leaves (355) will block the air hole one (353), and the gas entering the opening and closing cavity will enter the outer cavity through the air hole two (331), and then enter the inner cavity through the air hole three (332) and the air hole four (343), and then the inner plate (36) will be reset under the action of the gas pressure; When the inner plate (36) moves up and down, the telescopic rod (363) will contact the side wall of the guide cylinder (34) and the opening and closing assembly (35) respectively, and then the telescopic grooves 2 at both ends of the telescopic rod (363) will be connected to the inner cavity respectively, and the gas in the inner cavity can be discharged from the one-way valve 1 through the inner groove and the through groove; When the inner plate (36) descends to the area of ​​the second guide groove (342), the guide rod (362) will extend into the second guide groove (342), slide in the second guide groove (342) and force the guide cylinder (34) to rotate and reset. At this time, the plurality of hinge leaves (355) are separated from each other, the air hole (332) and the air hole (343) are misaligned, and the inner plate (36) rises again under the push of air pressure. When the filter plate (372) rises to contact the cleaning rod (44), the spring three is deformed, the cleaning rod (44) drives the cross bar (442) to rise, and then the cross bar (442) contacts the L-shaped gear bar (421), causing the L-shaped gear bar (421) to rotate, thereby separating from the top plate (41), and at the same time the cross bar (442) moves to the limit position, the top plate (41) rises, and the spring two is deformed, at which time the upper surface of the filter plate (372) slides to the outside of the filter box (37); At the same time, when the push rod rises, the insertion rod (47) will penetrate into the cleaning rod (44). When the cleaning rod (44) moves to contact with the spiral plate (46), the cleaning rod (44) will push the spiral plate (46), causing the spiral shaft to slide in the spiral groove, and then the spiral plate (46) will drive the cleaning rod (44) and the scraper (441) to rotate.

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