A wedge-shaped flowmeter with anti-clogging structure

Abstract

The present invention discloses a wedge-shaped flowmeter with an anti-clogging structure, which belongs to the technical field of flowmeters, and includes a main device, the main device is used to measure the flow rate, and the main device is provided with an adjusting device and a cleaning device, the adjusting device is used to adjust the flow rate, and the cleaning device is used to clean the filter screen. When the main device provided by the present invention is blocked, the cleaning mechanism is controlled by an upper push mechanism, so that the outlet pipe and the inlet pipe are closed, and the inside of the flowmeter is flushed by a cleaning liquid, and the degree of automation is high; the adjusting device provided by the present invention can adjust the height of the wedge block according to different usage conditions, and synchronously adjust the position of the lower adjusting block; the cleaning device provided by the present invention can automatically clean the filter element screen, and collect the precipitated impurities to prevent the flowmeter from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of flow meters, and in particular to a wedge-shaped flow meter with an anti-clogging structure. Background Art

[0002] A wedge flowmeter is a device used to measure fluid flow, which uses the fluid passing through pipes of different cross-sectional areas to measure flow velocity and flow rate. The working principle of the wedge flowmeter is based on Bernoulli's principle and the continuity equation. Its main components include a structure in which the pipe cross section suddenly expands and contracts. The wedge flowmeter usually installs pressure sensors in the contraction section and expansion section of the pipe respectively. The velocity of the fluid can be directly calculated by measuring the pressure difference. Combined with the change in the cross-sectional area of ​​the pipe, the actual flow rate of the fluid can be further calculated. Due to the characteristics of the transported fluid itself, the wedge flowmeter in the prior art is prone to blockage during use, and the flowmeter needs to be manually cleaned regularly, which is very cumbersome. In addition, the traditional wedge flowmeter cannot change the position of the wedge block and has poor adaptability. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a wedge-shaped flowmeter with an anti-clogging structure, including a main body device, the main body device includes an outlet pipe and an inlet pipe, the main body device is used to measure the flow rate, the main body device is provided with an adjusting device and a cleaning device, the adjusting device includes an opening and closing shell, the adjusting device is used to adjust the flow rate, the cleaning device includes a filter shell, and the cleaning device is used to clean the filter.

[0004] Furthermore, the main device includes a front connecting pipe fixedly installed on the outlet pipe, an upper pipe fixedly installed on the inlet pipe, the upper pipe and the filter shell fixedly installed, a discharge pipe fixedly installed below the upper pipe, a discharge tank detachably installed on the discharge pipe, an outlet ball valve rotatably installed in the outlet pipe, a right transmission wheel fixedly installed on the outlet ball valve, a liquid outlet ball valve rotatably installed in the vertical opening and closing pipe, a driving wheel fixedly installed on the liquid outlet ball valve, a ball valve rotatably installed in the inlet pipe, a left transmission wheel fixedly installed on the ball valve, a discharge ball valve rotatably installed in the outlet pipe, and a lower transmission wheel fixedly installed on the discharge ball valve.

[0005] Furthermore, a lifting mechanism is arranged in the upper tube, and the lifting mechanism includes a rising column slidably mounted on the upper tube, an electric switch is fixedly mounted on the upper tube, a switching motor is fixedly mounted on the vertical opening and closing tube, the switching motor and the electric switch are electrically connected through electric wires, an upper push plate is fixedly mounted on the rising column, a return spring is arranged between the upper push plate and the upper tube, an oblique transmission belt is wound around the driving wheel and the right transmission wheel, a transverse transmission belt is wound around the right transmission wheel and the left transmission wheel, and a left transmission belt is wound around the lower transmission wheel and the left transmission wheel.

[0006] Furthermore, a cleaning mechanism is provided on the vertical opening and closing tube, and the cleaning mechanism includes a cleaning liquid tank fixedly installed on the vertical opening and closing tube, a lifting column is slidably installed on the cleaning liquid tank, a liquid pushing plate is fixedly installed on the lifting column, an extrusion spring is provided between the liquid pushing plate and the cleaning liquid tank, a liquid inlet valve is fixedly installed on the cleaning liquid tank, a liquid inlet ball valve is rotatably installed in the liquid inlet valve, a liquid inlet valve wheel is fixedly installed on the liquid inlet ball valve, the cleaning liquid tank is filled with cleaning liquid, and in the initial state, the extrusion spring is in a compressed state.

[0007] In the initial state, the inlet valve wheel is in a closed state, and the through holes of the outlet ball valve, liquid outlet ball valve, goal valve, and discharge ball valve are horizontal. The liquid enters from the inlet pipe, flows through the inlet pipe, goal valve, filter housing, measuring pipe, front connecting pipe and outlet ball valve. When the cleaning device is blocked, the pressure in the upper pipe increases, pushing the upper push plate and the rising column to rise, and the reset spring is compressed. When the rising column contacts the electric switch, the electric switch controls the switching motor to rotate ninety degrees through the wire. Each time the electric switch is triggered, the switching motor rotates ninety degrees and maintains for a period of time. The rotation of the switching motor drives the outlet ball valve, outlet ball valve, goal valve, and discharge ball valve. The valve rotates 90 degrees, the outlet ball valve and the ball valve close the inlet pipe and the outlet pipe, and the through holes of the discharge ball valve and the outlet ball valve are in a vertical state. At this time, the extrusion spring rebounds, driving the push plate and the lifting column to descend, and pushing the cleaning liquid in the cleaning liquid tank into the front connecting pipe through the outlet ball valve. The cleaning liquid flows through the outlet ball valve, the front connecting pipe, the measuring tube, the filter housing, the upper pipe, and the discharge pipe to flush the debris blocked on the filter element net into the discharge tank. After flushing is completed, switch the motor to drive the outlet ball valve, the outlet ball valve, the ball valve, and the discharge ball valve to reset. The inlet ball valve is opened by rotating the inlet valve wheel to add cleaning liquid to the cleaning liquid tank.

[0008] Furthermore, the regulating device includes a controller fixedly mounted on the opening and closing shell, a measuring tube fixedly mounted on the opening and closing shell, an upper shell fixedly mounted on the measuring tube, the measuring tube and the front connecting tube fixedly mounted, the measuring tube and the filter shell fixedly mounted, two pressure gauges fixedly mounted on the measuring tube, and a sliding column fixedly mounted in the upper shell.

[0009] Furthermore, a wedge mechanism is provided in the upper shell, and the wedge mechanism includes a wedge block slidably mounted on the sliding column, an adjustment spring is provided between the wedge block and the upper shell, an adjustment screw is rotatably mounted on the wedge block, an adjustment wheel is fixedly mounted on the adjustment screw, and a threaded transmission is formed between the adjustment screw and the upper shell.

[0010] Furthermore, a downward pressing mechanism is arranged on the opening and closing shell, and the downward pressing mechanism includes a base fixedly installed in the opening and closing shell, a plurality of downward sliding columns are slidably installed in the base, a lower adjusting block is fixedly installed on the downward sliding column, a downward sliding spring is arranged between the lower adjusting block and the base, and the height of the lower adjusting block gradually increases from the inside to the outside.

[0011] The flow rate of the liquid is measured by measuring the pressure difference before and after the liquid passes through the wedge block through two pressure gauges. When it is needed for different usage environments and fluid types, the adjusting wheel is turned to drive the adjusting screw to rotate. The adjusting screw cooperates with the thread of the upper shell to drive the wedge block to rise and fall along the sliding column. When the wedge block descends, it will drive the lower adjusting block and the sliding column to descend, and the sliding spring is compressed.

[0012] Furthermore, the cleaning device includes an opening and closing tube fixedly mounted on the filter shell, an externally threaded tube fixedly mounted on the opening and closing tube, an impurity tank being rotatably mounted on the externally threaded tube through a thread, a filter frame fixedly mounted on the filter shell, a filter element net fixedly mounted on the filter frame, and a scraper blade rotatably mounted on the filter frame.

[0013] Furthermore, an opening and closing mechanism is provided on the externally threaded tube, and the opening and closing mechanism includes a connecting block fixedly mounted on the externally threaded tube, a disassembly sleeve rotatably mounted outside the opening and closing tube, a spiral arc groove being arranged inside the disassembly sleeve, a vertical guide column fixedly mounted on the connecting block, a lifting block slidably mounted on the vertical guide column, a compression spring being arranged between the lifting block and the vertical guide column, a guide column fixedly mounted on the lifting block, the guide column and the spiral arc groove being slidably mounted, a connecting rod being rotatably mounted on the lifting block, an opening and closing shaft fixedly mounted inside the opening and closing tube, an opening and closing plate rotatably mounted on the opening and closing shaft, and the opening and closing plate and the connecting rod being rotatably mounted.

[0014] When the liquid flows through the filter shell, the fluid is filtered by the filter element mesh. At the same time, the fluid will push the scraper blades to rotate and scrape off the impurities filtered on the surface of the filter element mesh. When in use, the opening and closing pipe and the impurity tank will also be filled with liquid, but the density of impurities will be large and will settle to the bottom of the impurity tank. When the precipitation in the impurity tank accumulates to a certain extent, the disassembly sleeve is rotated to drive the guide column and the lifting block to rise and fall through the spiral arc groove. The compression spring is compressed, thereby driving the connecting rod to rotate, thereby driving the opening and closing plate to rotate, and the opening and closing plate closes the bottom of the filter shell. At this time, the impurity tank is rotated, the impurity tank is removed from the external threaded pipe, and the impurities in the impurity tank are dumped.

[0015] Compared with the prior art, the present invention has the following advantages: (1) when the main device provided in the present invention is blocked, the action of the cleaning mechanism is controlled by the upper push mechanism, so that the outlet pipe and the inlet pipe are closed, and the inside of the flow meter is flushed by the cleaning liquid, and the degree of automation is high; (2) the adjustment device provided in the present invention can adjust the height of the wedge block according to different usage conditions, and synchronously adjust the position of the lower adjustment block; (3) the cleaning device provided in the present invention can automatically clean the filter element net and collect the precipitated impurities to prevent the flow meter from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2The main device structure of the present invention is shown in FIG. Figure 1 .

[0018] Figure 3 The main device structure of the present invention is shown in FIG. Figure 2 .

[0019] Figure 4 The structure of the regulating device of the present invention is shown in FIG. Figure 1 .

[0020] Figure 5 The structure of the regulating device of the present invention is shown in FIG. Figure 2 .

[0021] Figure 6 The cleaning device of the present invention is schematically shown in FIG. Figure 1 .

[0022] Figure 7 The cleaning device of the present invention is schematically shown in FIG. Figure 2 .

[0023] Figure 8 It is a schematic diagram of the opening and closing mechanism structure of the present invention.

[0024] 101- outlet pipe; 102- front connecting pipe; 103- vertical opening and closing pipe; 104- cleaning liquid tank; 105- inlet valve; 106- inlet valve wheel; 107- inlet ball valve; 108- lifting column; 109- extrusion spring; 110- push plate; 111- switch motor; 112- outlet ball valve; 113- driving wheel; 114- right transmission wheel; 115- oblique transmission belt; 116- outlet ball valve; 117- horizontal transmission belt; 118- electric wire; 119- discharge tank; 120- discharge pipe; 121- inlet pipe; 122- upper pipe; 123- electric switch; 124- rising column; 125- reset spring; 126- upper push plate; 127- ball valve; 128- left transmission wheel; 129- left transmission belt; 130- discharge ball valve; 1 31-lower transmission wheel; 201-opening and closing shell; 202-controller; 203-upper shell; 204-measuring tube; 205-adjusting wheel; 206-adjusting screw rod; 207-wedge block; 208-sliding column; 209-adjusting spring; 210-lower adjusting block; 211-lower sliding column; 212-sliding spring; 213-base; 214-pressure gauge; 301-filter housing; 302-impurity tank; 303-opening and closing pipe; 304-disassembly sleeve; 305-filter rack; 306-filter element net; 307-scraping fan blade; 308-connecting block; 309-vertical guide column; 310-lifting block; 311-guide column; 312-compression spring; 313-connecting rod; 314-opening and closing plate; 315-opening and closing shaft; 316-spiral arc groove; 317-external threaded pipe. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] Example: Reference Figure 1-Figure 8 A wedge-shaped flowmeter with an anti-clogging structure includes a main device, the main device includes an outlet pipe 101 and an inlet pipe 121, the main device is used to measure the flow rate, and the main device is provided with an adjusting device and a cleaning device, the adjusting device includes an opening and closing shell 201, the adjusting device is used to adjust the flow rate, the cleaning device includes a filter shell 301, and the cleaning device is used to clean the filter.

[0027] like Figure 2 , Figure 3 As shown, the main device includes a front connecting pipe 102 fixedly installed on the outlet pipe 101, an upper pipe 122 fixedly installed on the inlet pipe 121, the upper pipe 122 is fixedly installed with the filter housing 301, a discharge pipe 120 is fixedly installed below the upper pipe 122, a discharge tank 119 is detachably installed on the discharge pipe 120, an outlet ball valve 116 is rotatably installed in the outlet pipe 101, a right transmission wheel 114 is fixedly installed on the outlet ball valve 116, a liquid outlet ball valve 112 is rotatably installed in the vertical opening and closing pipe 103, a driving wheel 113 is fixedly installed on the liquid outlet ball valve 112, a ball valve 127 is rotatably installed in the inlet pipe 121, a left transmission wheel 128 is fixedly installed on the ball valve 127, a liquid discharge ball valve 130 is rotatably installed in the outlet pipe 120, and a lower transmission wheel 131 is fixedly installed on the liquid discharge ball valve 130.

[0028] like Figure 2 , Figure 3 As shown, an upper push mechanism is arranged in the upper tube 122, and the upper push mechanism includes a rising column 124 slidably mounted on the upper tube 122, an electric switch 123 is fixedly mounted on the upper tube 122, a switching motor 111 is fixedly mounted on the vertical opening and closing tube 103, the switching motor 111 is electrically connected to the electric switch 123 through an electric wire 118, an upper push plate 126 is fixedly mounted on the rising column 124, a return spring 125 is arranged between the upper push plate 126 and the upper tube 122, an oblique transmission belt 115 is wound around the driving wheel 113 and the right transmission wheel 114, a horizontal transmission belt 117 is wound around the right transmission wheel 114 and the left transmission wheel 128, and a left transmission belt 129 is wound around the lower transmission wheel 131 and the left transmission wheel 128.

[0029] like Figure 2 , Figure 3As shown, a cleaning mechanism is provided on the vertical opening and closing tube 103, and the cleaning mechanism includes a cleaning liquid tank 104 fixedly installed on the vertical opening and closing tube 103, a lifting column 108 is slidably installed on the cleaning liquid tank 104, a liquid pushing plate 110 is fixedly installed on the lifting column 108, an extrusion spring 109 is provided between the liquid pushing plate 110 and the cleaning liquid tank 104, a liquid inlet valve 105 is fixedly installed on the cleaning liquid tank 104, a liquid inlet ball valve 107 is rotatably installed in the liquid inlet valve 105, a liquid inlet valve wheel 106 is fixedly installed on the liquid inlet ball valve 107, the cleaning liquid tank 104 is filled with cleaning liquid, and in the initial state, the extrusion spring 109 is in a compressed state.

[0030] In the initial state, the inlet valve wheel 106 is in a closed state, and the through holes of the outlet ball valve 116, the outlet ball valve 112, the ball valve 127, and the discharge ball valve 130 are horizontal. The liquid enters from the inlet pipe 121, flows through the inlet pipe 121, the ball valve 127, the filter housing 301, the measuring tube 204, the front connecting pipe 102 and the outlet ball valve 116. When the cleaning device is blocked, the pressure in the upper tube 122 increases, pushing the upper push plate 126 and the rising column 124 to rise, and the return spring 125 is compressed. When the rising column 124 contacts the electric switch 123, the electric switch 123 controls the switching motor 111 to rotate ninety degrees through the wire 118. Each time the electric switch 123 is triggered, the switching motor 111 rotates ninety degrees and then maintains for a period of time. The switching motor 111 rotates to drive the outlet ball valve 112, the outlet ball valve 116, the ball valve 127, and the discharge ball valve 130. 0 rotates 90 degrees, the outlet ball valve 116 and the inlet valve 127 close the inlet pipe 121 and the outlet pipe 101, and the through holes of the discharge ball valve 130 and the outlet ball valve 112 are in a vertical state. At this time, the extrusion spring 109 rebounds, driving the liquid pushing plate 110 and the lifting column 108 to descend, and the cleaning liquid in the cleaning liquid tank 104 is pushed into the front connecting pipe 102 through the outlet ball valve 112. The cleaning liquid flows through the outlet ball valve 112, the front connecting pipe 102, the measuring tube 204, the filter housing 301, the upper pipe 122, and the discharge pipe 120 to flush the debris blocked on the filter element net 306 into the discharge tank 119. After the flushing is completed, the motor 111 is switched to drive the outlet ball valve 112, the outlet ball valve 116, the inlet valve 127, and the discharge ball valve 130 to reset, and the inlet ball valve 107 is opened by rotating the inlet valve wheel 106 to replenish the cleaning liquid in the cleaning liquid tank 104.

[0031] like Figure 4 , Figure 5 As shown, the regulating device includes a controller 202 fixedly mounted on an opening and closing shell 201, a measuring tube 204 fixedly mounted on the opening and closing shell 201, an upper shell 203 fixedly mounted on the measuring tube 204, the measuring tube 204 and the front connecting tube 102 fixedly mounted, the measuring tube 204 and the filter shell 301 fixedly mounted, two pressure gauges 214 fixedly mounted on the measuring tube 204, and a sliding column 208 fixedly mounted in the upper shell 203.

[0032] like Figure 4 , Figure 5 As shown, a wedge mechanism is provided in the upper shell 203, and the wedge mechanism includes a wedge block 207 slidably mounted on a sliding column 208, an adjusting spring 209 is provided between the wedge block 207 and the upper shell 203, an adjusting screw 206 is rotatably mounted on the wedge block 207, an adjusting wheel 205 is fixedly mounted on the adjusting screw 206, and the adjusting screw 206 and the upper shell 203 form a threaded transmission.

[0033] like Figure 4 , Figure 5 As shown, a pressing mechanism is provided on the opening and closing shell 201, and the pressing mechanism includes a base 213 fixedly installed in the opening and closing shell 201, a plurality of downward sliding columns 211 are slidably installed in the base 213, a lower adjusting block 210 is fixedly installed on the downward sliding column 211, a downward sliding spring 212 is provided between the lower adjusting block 210 and the base 213, and the height of the lower adjusting block 210 gradually increases from the inside to the outside.

[0034] The flow rate of the liquid is measured by measuring the pressure difference before and after the liquid passes through the wedge block 207 through two pressure gauges 214. When it is needed for different usage environments and fluid types, the adjusting wheel 205 is rotated to drive the adjusting screw 206 to rotate. The adjusting screw 206 cooperates with the thread of the upper shell 203 to drive the wedge block 207 to rise and fall along the sliding column 208. When the wedge block 207 descends, it will drive the lower adjusting block 210 and the lower sliding column 211 to descend, and the lower sliding spring 212 is compressed.

[0035] like Figure 7 , Figure 8 As shown, the cleaning device includes an opening and closing tube 303 fixedly mounted on the filter housing 301, an externally threaded tube 317 fixedly mounted on the opening and closing tube 303, an impurity tank 302 is rotatably mounted on the externally threaded tube 317 by means of a thread, a filter frame 305 fixedly mounted on the filter housing 301, a filter element net 306 fixedly mounted on the filter frame 305, and a scraper blade 307 rotatably mounted on the filter frame 305.

[0036] like Figure 7 , Figure 8As shown, an opening and closing mechanism is provided on the external threaded tube 317, and the opening and closing mechanism includes a connecting block 308 fixedly mounted on the external threaded tube 317, a disassembly sleeve 304 is rotatably mounted outside the opening and closing tube 303, a spiral arc groove 316 is provided inside the disassembly sleeve 304, a vertical guide column 309 is fixedly mounted on the connecting block 308, a lifting block 310 is slidably mounted on the vertical guide column 309, a compression spring 312 is provided between the lifting block 310 and the vertical guide column 309, a guide column 311 is fixedly mounted on the lifting block 310, the guide column 311 is slidably mounted with the spiral arc groove 316, a connecting rod 313 is rotatably mounted on the lifting block 310, an opening and closing shaft 315 is fixedly mounted inside the opening and closing tube 303, an opening and closing plate 314 is rotatably mounted on the opening and closing shaft 315, and the opening and closing plate 314 and the connecting rod 313 are rotatably mounted.

[0037] When the liquid flows through the filter housing 301, the fluid is filtered by the filter element mesh 306. At the same time, the fluid will push the scraper blades 307 to rotate, and the impurities filtered on the surface of the filter element mesh 306 will be scraped off. When in use, the opening and closing tube 303 and the impurity tank 302 will also be filled with liquid, but the density of impurities will be high and precipitated to the bottom of the impurity tank 302. When the precipitation in the impurity tank 302 accumulates to a certain extent, the disassembly sleeve 304 is rotated to drive the guide column 311 and the lifting block 310 to rise and fall through the spiral arc groove 316, and the compression spring 312 is compressed, thereby driving the connecting rod 313 to rotate, thereby driving the opening and closing plate 314 to rotate, and the opening and closing plate 314 closes the bottom of the filter housing 301. At this time, the impurity tank 302 is rotated, the impurity tank 302 is removed from the external threaded tube 317, and the impurities in the impurity tank 302 are dumped.

[0038] The working principle of a stainless steel angle steel hardness detection device disclosed in the present invention is as follows: in the initial state, the inlet valve wheel 106 is in a closed state, the through holes of the outlet ball valve 116, the outlet ball valve 112, the ball valve 127, and the discharge ball valve 130 are horizontal, and the liquid enters from the inlet pipe 121, flows through the inlet pipe 121, the ball valve 127, the filter housing 301, the measuring tube 204, the front connecting pipe 102 and the outlet ball valve 116. When the liquid flows through the filter housing 301, the fluid is filtered by the filter element 306, and at the same time, the fluid drives the scraper blade 307 to rotate, and the impurities filtered on the surface of the filter element 306 are filtered. During scraping, the opening and closing tube 303 and the impurity tank 302 will also be filled with liquid, but the density of impurities will be high and will settle to the bottom of the impurity tank 302. When the sediment in the impurity tank 302 accumulates to a certain extent, the disassembly sleeve 304 is rotated to drive the guide column 311 and the lifting block 310 to rise and fall through the spiral arc groove 316, and the compression spring 312 is compressed, thereby driving the connecting rod 313 to rotate, thereby driving the opening and closing plate 314 to rotate, and the opening and closing plate 314 closes the bottom of the filter housing 301. At this time, the impurity tank 302 is rotated, and the impurity tank 302 is removed from the external threaded tube 317 to dump the impurities in the impurity tank 302. The flow rate of the liquid is measured by measuring the pressure difference before and after the liquid passes through the wedge block 207 through two pressure gauges 214. When it is needed for different usage environments and fluid types, the adjusting wheel 205 is rotated to drive the adjusting screw 206 to rotate. The adjusting screw 206 cooperates with the thread of the upper shell 203 to drive the wedge block 207 to rise and fall along the sliding column 208. When the wedge block 207 descends, it will drive the lower adjusting block 210 and the lower sliding column 211 to descend, and the lower sliding spring 212 is compressed.

[0039] When the cleaning device is blocked, the pressure in the upper tube 122 increases, pushing the upper push plate 126 and the rising column 124 up, and the return spring 125 is compressed. When the rising column 124 contacts the electric switch 123, the electric switch 123 controls the switching motor 111 to rotate ninety degrees through the wire 118. Each time the electric switch 123 is triggered, the switching motor 111 rotates ninety degrees and keeps for a period of time. The rotation of the switching motor 111 drives the liquid outlet ball valve 112, the outlet ball valve 116, the inlet valve 127, and the discharge ball valve 130 to rotate ninety degrees. The outlet ball valve 116 and the inlet valve 127 close the inlet pipe 121 and the outlet pipe 101, and the through holes of the discharge ball valve 130 and the liquid outlet ball valve 112 are vertical. State, at this time, the extrusion spring 109 rebounds, driving the liquid pushing plate 110 and the lifting column 108 to descend, and pushing the cleaning liquid in the cleaning liquid tank 104 into the front connecting pipe 102 through the liquid outlet ball valve 112. The cleaning liquid flows through the liquid outlet ball valve 112, the front connecting pipe 102, the measuring tube 204, the filter housing 301, the upper tube 122, and the discharge pipe 120 to flush the debris blocked on the filter element net 306 into the discharge tank 119. After flushing is completed, the motor 111 is switched to drive the liquid outlet ball valve 112, the outlet ball valve 116, the inlet valve 127, and the discharge ball valve 130 to reset, and the liquid inlet ball valve 107 is opened by rotating the liquid inlet valve wheel 106 to replenish the cleaning liquid in the cleaning liquid tank 104.

[0040] 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 of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wedge-shaped flowmeter with an anti-clogging structure, comprising a main device, characterized in that: The main device comprises an outlet pipe (101) and an inlet pipe (121), the main device is used to measure flow rate, and an adjusting device and a cleaning device are provided on the main device, the adjusting device comprises an opening and closing shell (201), the adjusting device is used to adjust the flow rate, the cleaning device comprises a filter shell (301), and the cleaning device is used to clean the filter; The main device comprises a front connecting pipe (102) fixedly mounted on the outlet pipe (101), an upper pipe (122) fixedly mounted on the inlet pipe (121), the upper pipe (122) fixedly mounted on the filter housing (301), a discharge pipe (120) fixedly mounted below the upper pipe (122), a discharge tank (119) detachably mounted on the discharge pipe (120), an outlet ball valve (116) rotatably mounted in the outlet pipe (101), and a fixed valve (119) on the outlet ball valve (116). A right transmission wheel (114) is installed, a liquid outlet ball valve (112) is rotatably installed in the vertical opening and closing pipe (103), a driving wheel (113) is fixedly installed on the liquid outlet ball valve (112), a ball valve (127) is rotatably installed in the inlet pipe (121), a left transmission wheel (128) is fixedly installed on the ball valve (127), a discharge ball valve (130) is rotatably installed in the discharge pipe (120), and a lower transmission wheel (131) is fixedly installed on the discharge ball valve (130); The regulating device comprises a controller (202) fixedly mounted on an opening and closing shell (201); a measuring tube (204) fixedly mounted on the opening and closing shell (201); an upper shell (203) fixedly mounted on the measuring tube (204); the measuring tube (204) and a front connecting tube (102) fixedly mounted; the measuring tube (204) and a filter housing (301) fixedly mounted; two pressure gauges (214) fixedly mounted on the measuring tube (204); and a sliding column (208) fixedly mounted in the upper shell (203); A wedge mechanism is arranged in the upper shell (203), the wedge mechanism comprising a wedge block (207) slidably mounted on a sliding column (208), an adjustment spring (209) is arranged between the wedge block (207) and the upper shell (203), an adjustment screw rod (206) is rotatably mounted on the wedge block (207), an adjustment wheel (205) is fixedly mounted on the adjustment screw rod (206), and a threaded transmission is formed between the adjustment screw rod (206) and the upper shell (203); The opening and closing shell (201) is provided with a downward pressing mechanism, the downward pressing mechanism comprising a base (213) fixedly installed in the opening and closing shell (201), a plurality of downward sliding columns (211) slidably installed in the base (213), a lower adjustment block (210) fixedly installed on the downward sliding column (211), a downward sliding spring (212) provided between the lower adjustment block (210) and the base (213), and the height of the lower adjustment block (210) gradually increases from the inside to the outside; The cleaning device comprises an opening and closing pipe (303) fixedly mounted on the filter housing (301), an externally threaded pipe (317) fixedly mounted on the opening and closing pipe (303), an impurity tank (302) rotatably mounted on the externally threaded pipe (317) via a thread, a filter housing (301) fixedly mounted on a filter frame (305), a filter element net (306) fixedly mounted on the filter frame (305), and a scraper blade (307) rotatably mounted on the filter frame (305); The externally threaded tube (317) is provided with an opening and closing mechanism, the opening and closing mechanism comprising a connecting block (308) fixedly mounted on the externally threaded tube (317), a disassembly sleeve (304) rotatably mounted outside the opening and closing tube (303), a spiral arc groove (316) being arranged inside the disassembly sleeve (304), a vertical guide column (309) fixedly mounted on the connecting block (308), a lifting block (310) slidably mounted on the vertical guide column (309), and the lifting block (310) and the lifting block (310) being rotatably mounted on the externally threaded tube (317). A compression spring (312) is arranged between the vertical guide pillars (309), a guide pillar (311) is fixedly mounted on the lifting block (310), the guide pillar (311) and the spiral arc groove (316) are slidably mounted, a connecting rod (313) is rotatably mounted on the lifting block (310), an opening and closing shaft (315) is fixedly mounted in the opening and closing tube (303), an opening and closing plate (314) is rotatably mounted on the opening and closing shaft (315), and the opening and closing plate (314) and the connecting rod (313) are rotatably mounted.

2. A wedge-shaped flowmeter with an anti-clogging structure according to claim 1, characterized in that: A lifting mechanism is arranged inside the upper tube (122), and the lifting mechanism comprises a lifting column (124) slidably mounted on the upper tube (122); an electric switch (123) is fixedly mounted on the upper tube (122); a switching motor (111) is fixedly mounted on the vertical opening and closing tube (103); the switching motor (111) and the electric switch (123) are electrically connected via an electric wire (118); an upper push plate (126) is fixedly mounted on the lifting column (124); a return spring (125) is arranged between the upper push plate (126) and the upper tube (122); an oblique transmission belt (115) is wound around the driving wheel (113) and the right transmission wheel (114); a transverse transmission belt (117) is wound around the right transmission wheel (114) and the left transmission wheel (128); and a left transmission belt (129) is wound around the lower transmission wheel (131) and the left transmission wheel (128).

3. The wedge-shaped flowmeter with an anti-clogging structure according to claim 1, characterized in that: The vertical opening and closing tube (103) is provided with a cleaning mechanism, the cleaning mechanism comprising a cleaning liquid tank (104) fixedly mounted on the vertical opening and closing tube (103), a lifting column (108) slidably mounted on the cleaning liquid tank (104), a liquid pushing plate (110) fixedly mounted on the lifting column (108), an extrusion spring (109) arranged between the liquid pushing plate (110) and the cleaning liquid tank (104), a liquid inlet valve (105) fixedly mounted on the cleaning liquid tank (104), a liquid inlet ball valve (107) rotatably mounted in the liquid inlet valve (105), a liquid inlet valve wheel (106) fixedly mounted on the liquid inlet ball valve (107), the cleaning liquid tank (104) is filled with cleaning liquid, and in an initial state, the extrusion spring (109) is in a compressed state.

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