Monitoring device based on ultrasonic cross-correlation flowmeter

Abstract

The invention discloses a monitoring device based on an ultrasonic cross-correlation flowmeter in the field of ultrasonic flowmeters.The monitoring device comprises a fixing base, clamping tables, a sensor moving assembly, a cleaning assembly, a dust collection assembly and a collection assembly.The fixing base and the clamping tables are arranged, and the clamping tables are located on the two sides of the fixing base; the two sets of ultrasonic sensors are connected to the side walls of the two clamping tables respectively, the ultrasonic measuring instrument is located at the top of the fixing base, the clamping tables are clamped on a pipeline, and when the pipeline expands with heat and contracts with cold, due to the length change of the pipeline, the clamping tables are driven to be close to or away from the fixing base, and then one set of ultrasonic sensors on the side walls of the clamping tables are driven to move by a corresponding distance in the opposite direction; the distance between the two sets of ultrasonic sensors can be kept unchanged under the condition that the pipeline expands with heat and contracts with cold, and the problems that the installation positions of the ultrasonic sensors are changed due to the length change of the pipeline, the sound wave propagation time is affected, and measurement errors are caused are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic flowmeters, and specifically to a monitoring device based on an ultrasonic cross-correlation flowmeter. Background Art

[0002] An ultrasonic flowmeter refers to a flowmeter developed based on the principle that the propagation speed of ultrasonic waves in a flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the velocity of sound waves in a stationary medium. It mainly consists of transducers and converters, and there are different types such as the Doppler method, the velocity difference method, the beam offset method, the noise method, and the correlation method.

[0003] When an ultrasonic cross-correlation flowmeter is in use, for reasons such as convenient maintenance, external ultrasonic sensors are usually used. This measurement method requires the ultrasonic sensors to be symmetrically clamped on the outer wall of the pipeline. However, the thermal expansion and contraction of the pipeline will cause the installation position of the ultrasonic sensors to shift, which may change the installation distance between the two groups of ultrasonic sensors, affect the sound wave propagation time, and thus cause measurement errors. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above and / or problems existing in a monitoring device based on an ultrasonic cross-correlation flowmeter, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a monitoring device based on an ultrasonic cross-correlation flowmeter, which can keep the distance between the two groups of ultrasonic sensors unchanged under the condition of thermal expansion and contraction of the pipeline, prevent the installation position of the ultrasonic sensors from changing due to the change in the pipeline length, and then avoid the problem of affecting the sound wave propagation time and causing measurement errors.

[0007] To solve the above technical problems, according to one aspect of the present invention, the following technical solutions are provided: A monitoring device based on an ultrasonic cross-correlation flowmeter, comprising: A fixed seat, including two symmetrically arranged fixing frames up and down and an ultrasonic measuring instrument installed on the top of the upper fixing frame. An abutting block is installed on the inner wall of the fixing frame; Clamping platforms, two of which are symmetrically located at both ends of the fixed seat. Each clamping platform includes two symmetrically arranged clamping plates up and down, and the two clamping platforms are symmetrically flipped up and down; Sensor moving components, there are two of the sensor moving components which are respectively connected to the side walls of the two clamping tables and located on both sides of the fixed seat. The two sensor moving components are connected to the ultrasonic measuring instrument through wires. The left sensor moving component is connected to the upper left clamping plate, and the right sensor moving component is connected to the lower right clamping plate. When the clamping table approaches or moves away from the fixed seat, the clamping table drives the sensor moving components to move in opposite directions and keeps the distance between the two sensor moving components unchanged; Cleaning component, installed on the side wall of the sensor moving component. When the sensor moving component moves, it drives the cleaning component to clean the surface of the pipeline; Dust suction component, installed on the side wall of the sensor moving component and connected to the cleaning component, used to absorb dust during cleaning; Collection component, installed on the side wall of the fixed frame and connected to the dust suction component, used to collect the absorbed dust.

[0008] As a preferred solution of the monitoring device based on the ultrasonic cross-correlation flowmeter of the present invention, wherein, first mounting plates are installed on the side walls of the two fixed frames. First bolt holes are opened at the tops of the first mounting plates. The two vertically opposite first mounting plates are connected by a first bolt. The first bolt rotates through the first bolt hole. The pipeline is located between the two fixed frames, and the abutting plate abuts against the outer wall of the pipeline.

[0009] As a preferred solution of the monitoring device based on the ultrasonic cross-correlation flowmeter of the present invention, wherein, guide grooves are opened on the inner walls of the fixed frames, and flat racks are installed inside the guide grooves; Second mounting plates are installed on the side walls of the clamping plates. Second bolt holes are opened at the tops of the second mounting plates. The two vertically symmetric second mounting plates are connected by a second bolt. The second bolt rotates through the second bolt hole. Clamping grooves are opened on the opposite surfaces of the two clamping plates. Rubber pads are installed on the inner walls of the clamping grooves. The pipeline is located between the two clamping grooves. A first guide plate is installed on the side wall of the upper clamping plate. A first gear is rotatably connected to the top of the first guide plate. The first gear is located inside the guide groove and meshes with the flat rack. A first pulley is installed at the bottom of the first gear. Two first fixing plates are symmetrically installed at the bottom of the first gear. A threaded rod is rotatably connected between the two first fixing plates. A first helical gear is installed on the rod body of the threaded rod. A second pulley is rotatably connected to the bottom of the first gear. The second pulley is connected to the first pulley by a belt. A second helical gear is installed at the bottom of the second pulley. The second helical gear meshes with the first helical gear.

[0010] As a preferred solution of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention, wherein the sensor moving assembly includes a moving seat and an ultrasonic sensor installed at the bottom of the moving seat. A first accommodating groove is formed at the bottom of the moving seat, and an inclined plate is installed inside the first accommodating groove. The ultrasonic sensor is installed on the side wall of the inclined plate. The two inclined plates are arranged oppositely, and a threaded hole is formed in the side wall of the moving seat.

[0011] As a preferred solution of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention, wherein two one-way racks are symmetrically installed on the side wall of the upper clamping plate, and the two one-way racks face in opposite directions; The cleaning assemblies are two and are symmetrically installed on the left and right sides of the moving seat. The cleaning assembly includes a second fixing plate installed on the side wall of the moving seat and a cleaning blade rotatably connected to the bottom of the other end of the second fixing plate. A brush is installed at the bottom of the cleaning blade. Two one-way gears are rotatably connected to the symmetric side walls of the second fixing plate, and the two one-way gears are arranged in reverse. A third pulley is installed on the side wall of the one-way gear. Two extension plates are oppositely arranged on the symmetric side walls of the moving seat. A fourth pulley is rotatably connected to the side wall of the extension plate. The fourth pulley is connected to the third pulley by a belt. A rotating rod is installed on the side wall of the fourth pulley, and a fourth helical gear is installed at the other end of the rotating rod. A third gear is installed at the top of the cleaning blade, and a third helical gear is installed at the top of the third gear. The third helical gear meshes with the fourth helical gear.

[0012] As a preferred solution of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention, wherein a second gear is rotatably connected to the top of the second fixing plate, the second gear meshes with the third gear, and an eccentric shaft rod is installed at the top of the second gear; The dust suction assembly includes a fixed pipe installed at the top of the second fixing plate and a piston located inside the fixed pipe. A connecting plate is installed on the side wall of the piston, and a cross plate is installed at the other end of the connecting plate. A second guiding groove is formed at the top of the cross plate, and the eccentric shaft rod is located inside the second guiding groove.

[0013] As a preferred solution of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention, wherein a first dust suction hose is installed on the side wall of the fixed pipe, the other end of the first dust suction hose extends out of the side wall of the fixed frame, a first one-way valve is installed on the body of the first dust suction hose, and a second dust suction hose is also installed on the side wall of the fixed pipe. The other end of the second dust suction hose extends to the bottom of the second fixing plate, and a second one-way valve is installed on the body of the second dust suction hose.

[0014] As a preferred embodiment of the monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention, further comprising a collection assembly, the collection assembly including an outer collection box mounted on the side wall of the fixed frame and an inner collection box located inside the outer collection box. A second accommodation groove is provided on the side wall of the outer collection box, and the other end of the first dust suction hose extends out from the side wall of the fixed frame and communicates with the inside of the second accommodation groove. A collection groove is provided at the top of the inner collection box, and the inner collection box is slidably connected inside the second accommodation groove and closes the opening of the second accommodation groove.

[0015] As a preferred embodiment of the monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention, a limiting hole is provided at the top of the outer collection box, a fixed frame is mounted on the side wall of the inner collection box, a sliding plate is slidably connected inside the fixed frame, a spring is mounted at the bottom of the sliding plate, a limiting rod is mounted at the top of the sliding plate, and the other end of the limiting rod penetrates through the limiting hole.

[0016] Compared with the prior art: By providing a fixed seat and clamping platforms, the clamping platforms are located on both sides of the fixed seat, two groups of ultrasonic sensors are respectively connected to the side walls of the two clamping platforms, and the ultrasonic measuring instrument is located on the top of the fixed seat. The clamping platforms clamp the pipeline. When the pipeline expands and contracts thermally, due to the change in the length of the pipeline, the clamping platforms are driven to approach or move away from the fixed seat, and then a group of ultrasonic sensors on their side walls are driven to move in the opposite direction by a corresponding distance, which can keep the distance between the two groups of ultrasonic sensors unchanged under the condition of thermal expansion and contraction of the pipeline, preventing the installation position of the ultrasonic sensors from changing due to the change in the length of the pipeline, and then affecting the sound wave propagation time and causing measurement errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them: Figure 1 It is the overall structure diagram of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention; Figure 2 It is the structure diagram of the fixed seat of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention; Figure 3 It is the structure diagram of the clamping platform of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention; Figure 4 It is the partial structure diagram of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention; Figure 5Structural diagram of the sensor moving component of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention; Figure 6 Structural diagram of the bottom of the moving base of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention; Figure 7 A monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention Figure 5 Structural diagram at position A; Figure 8 Structural diagram of the dust suction component of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention; Figure 9 Structural diagram of the inner collection box of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention. Detailed implementation manner

[0018] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings.

[0019] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention here. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0020] To make the purpose, technical solution, and advantages of the present invention clearer, the following will further describe in detail the embodiments of the present invention with reference to the accompanying drawings.

[0021] The present invention provides a monitoring device based on an ultrasonic cross-correlation flowmeter, which can keep the distance between two groups of ultrasonic sensors unchanged under the condition of pipeline thermal expansion and contraction, prevent the installation position of the ultrasonic sensors from changing due to the change of pipeline length, and then affect the sound wave propagation time, resulting in measurement error problems. Embodiment 1

[0022] Figures 1-3 Shown is a structural schematic diagram of the first embodiment of a monitoring device based on an ultrasonic cross-correlation flowmeter according to the present invention. Please refer to Figures 1-3 , a monitoring device based on an ultrasonic cross-correlation flowmeter in this embodiment includes a fixed base 100, a clamping table 200, a sensor moving component 300, a cleaning component 400, a dust suction component 500, and a collection component 600.

[0023] The fixing base 100 includes two fixing brackets 110 symmetrically arranged up and down, and an ultrasonic measuring instrument 120 installed on the top of the upper fixing bracket 110. An abutting plate 130 is installed on the inner wall of the fixing bracket 110. During use, the pipeline is located between the two fixing brackets 110, and the two fixing brackets 110 approach each other to clamp the pipeline. The abutting plate 130 abuts against the outer wall of the pipeline to fixedly install the ultrasonic measuring instrument 120.

[0024] There are two clamping tables 200, which are symmetrically located at both ends of the fixing base 100. The clamping table 200 includes two clamping plates 210 symmetrically arranged up and down. The two clamping tables 200 are symmetrically flipped up and down. The pipeline is located between the two clamping plates 210, and the two clamping plates 210 clamp the pipeline to complete the fixation of the clamping table 200 and the pipeline. The two clamping tables 200 are respectively fixed on the pipelines located on the left and right sides of the fixing base 100.

[0025] There are two sensor moving assemblies 300, which are respectively connected to the side walls of the two clamping tables 200 and located on both sides of the fixing base 100. The two sensor moving assemblies 300 are connected to the ultrasonic measuring instrument 120 through wires. The left sensor moving assembly 300 is connected to the upper left clamping plate 210, and the right sensor moving assembly 300 is connected to the lower right clamping plate 210. When the clamping table 200 approaches or moves away from the fixing base 100, the clamping table 200 drives the sensor moving assembly 300 to move in the opposite direction and keeps the distance between the two sensor moving assemblies 300 unchanged. When the pipeline generates a length change due to thermal expansion and contraction, the pipeline drives the clamping table 200 to approach or move away from the fixing base 100. When the clamping table 200 moves, it drives the corresponding sensor moving assembly 300 to move the same distance in the opposite direction, that is, when the clamping table 200 moves, the position of the sensor moving assembly 300 can be kept unchanged, preventing the distance between the two sensor moving assemblies 300 from changing when the pipeline expands and contracts thermally.

[0026] The cleaning assembly 400 is installed on the side wall of the sensor moving assembly 300. When the sensor moving assembly 300 moves, it drives the cleaning assembly 400 to clean the surface of the pipeline. When the clamping table 200 drives the sensor moving assembly 300 to move, the sensor moving assembly 300 drives the cleaning assembly 400 to clean. The cleaning assembly 400 sweeps away the dust on the path where the sensor moving assembly 300 needs to move in advance, preventing the dust from affecting the use of the sensor when the sensor moving assembly 300 moves.

[0027] The dust suction assembly 500 is installed on the side wall of the sensor moving assembly 300 and is connected to the cleaning assembly 400, and is used to absorb dust during cleaning. When the cleaning assembly 400 sweeps the dust, the cleaning assembly 400 drives the dust suction assembly 500 to generate suction to adsorb the swept dust, preventing the dust from reattaching to the pipeline when it is swept.

[0028] The collection component 600 is installed on the side wall of the fixing frame 110 and connected to the dust suction component 500 for collecting the absorbed dust.

[0029] Combined Figures 1-3 , for a monitoring device based on an ultrasonic cross-correlation flowmeter in this embodiment, when in use, first bring the two fixing frames 110 close to each other and clamp the pipeline, fix the ultrasonic measuring instrument 120 on the pipeline, and then fix the two clamping tables 200 on the pipeline to complete the fixation of the two sensor moving components 300. The distance between the two sensor moving components 300 is fixed. When the pipeline expands and contracts due to temperature changes, the length of the pipeline changes, driving the clamping table 200 to move. When the clamping table 200 moves, it pushes the sensor moving component 300 to move the same distance in the opposite direction, so as to keep the position of the sensor moving component 300 unchanged, that is, the distance between the two sensor moving components 300 remains unchanged, preventing the installation positions of the two sensor moving components 300 from changing due to the length change caused by the thermal expansion and contraction of the pipeline and affecting the measurement accuracy. At the same time, when the sensor moving component 300 moves, it drives the cleaning component 400 to sweep the dust on the moving path of the sensor moving component 300 in advance, and drives the dust suction component 500 to suck the dust into the collection component 600 for collection during the sweeping process, preventing the dust from adhering to the pipeline and affecting the use of the sensor. Embodiment 2

[0030] Figures 1-9 Shown is a schematic structural diagram of a second embodiment of a monitoring device based on an ultrasonic cross-correlation flowmeter of the present invention. Please refer to Figures 1-9 , different from the above embodiment, a monitoring device based on an ultrasonic cross-correlation flowmeter in this embodiment further includes: First mounting plates 140 are installed on the side walls of both fixing frames 110. First bolt holes 140a are opened at the tops of the first mounting plates 140. The two relatively upper and lower first mounting plates 140 are connected by first bolts 140b. The first bolts 140b rotate through the first bolt holes 140a. The pipeline is located between the two fixing frames 110. The abutting plate 130 abuts against the outer wall of the pipeline. Guide grooves 110a are opened on the inner walls of the fixing frames 110. Flat racks 110a-1 are installed inside the guide grooves 110a. By placing the pipeline between the two fixing frames 110, the first bolts 140b penetrate through the corresponding two first bolt holes 140a, and the first bolts 140b are rotated to tighten the two first mounting plates 140, that is, to pull the two fixing frames 110 closer to each other until the abutting plate 130 abuts against the outer wall of the pipeline, clamping the fixing frames 110 on the pipeline and installing and fixing the ultrasonic measuring instrument 120.

[0031] The side wall of the clamping plate 210 is provided with a second mounting plate 230. The top of the second mounting plate 230 is provided with a second bolt hole 230a. The two second mounting plates 230 that are symmetrically arranged up and down are connected by a second bolt 230b. The second bolt 230b rotatably penetrates through the second bolt hole 230a. Clamping grooves 220 are formed on the opposite surfaces of the two clamping plates 210. A rubber pad 220a is installed on the inner wall of the clamping groove 220. The pipeline is located between the two clamping grooves 220. A first guide plate 240 is installed on the side wall of the upper clamping plate 210. A first gear 240a is rotatably connected to the top of the first guide plate 240. The first gear 240a is located inside the guide groove 110a and meshes with the flat rack 110a-1. A first pulley 240a-1 is installed at the bottom of the first gear 240a. Two first fixing plates 240b are symmetrically installed at the bottom of the first gear 240a. A threaded rod 240b-1 is rotatably connected between the two first fixing plates 240b. A first helical gear 240b-2 is installed on the rod body of the threaded rod 240b-1. A second pulley 240c is rotatably connected to the bottom of the first gear 240a. The second pulley 240c is connected to the first pulley 240a-1 by a belt. A second helical gear 240c-1 is installed at the bottom of the second pulley 240c. The second helical gear 240c-1 meshes with the first helical gear 240b-2. Two one-way racks 210a are symmetrically installed on the side wall of the upper clamping plate 210. The two one-way racks 210a face in opposite directions. By placing the pipeline between the two clamping plates 210 and rotating the second bolt 230b to penetrate through the corresponding two second bolt holes 230a, rotating the second bolt 230b can pull the two second mounting plates 230 closer to each other, thereby pulling the two clamping plates 210 closer to each other until the inner wall of the clamping groove 220 abuts against the outer wall of the pipeline, fixing the clamping plate 210 on the pipeline. When the length of the pipeline changes, the clamping plate 210 moves, driving the first guide plate 240 and the first gear 240a to slide inside the guide groove 110a. The flat rack 110a-1 drives the first gear 240a and the first pulley 240a-1 to rotate. When the first pulley 240a-1 rotates, it drives the second pulley 240c and the second helical gear 240c-1 to rotate through the belt. The second helical gear 240c-1 drives the first helical gear 240b-2 and the threaded rod 240b-1 to rotate.

[0032] The sensor moving assembly 300 includes a moving base 310 and an ultrasonic sensor 320 installed at the bottom of the moving base 310. A first accommodation groove 310a is formed at the bottom of the moving base 310. An inclined plate 310a-1 is installed inside the first accommodation groove 310a. The ultrasonic sensor 320 is installed on the side wall of the inclined plate 310a-1. The two inclined plates 310a-1 are arranged oppositely. A threaded hole 310b is formed in the side wall of the moving base 310. When the threaded rod 240b-1 rotates, the moving base 310 is pushed by a screw structure to drive the ultrasonic sensor 320 to move in a direction opposite to the moving direction of the clamping plate 210. That is, when the clamping plate 210 moves away from the fixing frame 110, the corresponding moving base 310 approaches the fixing frame 110. When the clamping plate 210 approaches the fixing frame 110, the corresponding moving base 310 moves away from the fixing frame 110. The distance that the moving base 310 moves each time is the same as the distance that the clamping plate 210 moves. It can keep the distance between the two ultrasonic sensors 320 unchanged when the length of the pipeline changes due to thermal expansion and contraction.

[0033] There are two cleaning assemblies 400, which are symmetrically installed on the left and right sides of the moving base 310. The cleaning assembly 400 includes a second fixing plate 410 installed on the side wall of the moving base 310 and a cleaning blade 420 rotatably connected to the bottom of the other end of the second fixing plate 410. A brush 420a is installed at the bottom of the cleaning blade 420. Two one-way gears 430 are rotatably connected to the symmetric side walls of the second fixing plate 410. The two one-way gears 430 are arranged in opposite directions. A third pulley 430a is installed on the side wall of the one-way gear 430. Two extension plates 440 are oppositely arranged on the symmetric side walls of the moving base 310. A fourth pulley 440a is rotatably connected to the side wall of the extension plate 440. The fourth pulley 440a is connected to the third pulley 430a by a belt. A rotating rod 440a-1 is installed on the side wall of the fourth pulley 440a. A fourth helical gear 440a-2 is installed at the other end of the rotating rod 440a-1. A third gear 420b is installed at the top of the cleaning blade 420. A third helical gear 420b-1 is installed at the top of the third gear 420b. The third helical gear 420b-1 meshes with the fourth helical gear 440a-2. A second gear 410a is rotatably connected to the top of the second fixing plate 410. The second gear 410a meshes with the third gear 420b. An eccentric shaft rod 410a-1 is installed at the top of the second gear 410a. When the moving base 310 moves, the one-way rack 210a drives the one-way gear 430 and the third pulley 430a to rotate. When the third pulley 430a rotates, it drives the fourth pulley 440a to rotate by the belt. The fourth pulley 440a drives the rotating rod 440a-1 and the fourth helical gear 440a-2 to rotate. The fourth helical gear 440a-2 drives the third helical gear 420b-1 and the third gear 420b to rotate. The third gear 420b drives the cleaning blade 420 and the brush 420a to rotate, so as to clean the dust on the moving path of the moving base 310.

[0034] The dust suction assembly 500 includes a fixed pipe 510 installed on the top of the second fixed plate 410 and a piston 520 located inside the fixed pipe 510. A connecting plate 520a is installed on the side wall of the piston 520, and a cross plate 520b is installed at the other end of the connecting plate 520a. A second guiding groove 520b-1 is formed on the top of the cross plate 520b. The eccentric shaft rod 410a-1 is located inside the second guiding groove 520b-1. A first dust suction hose 510a is installed on the side wall of the fixed pipe 510, and the other end of the first dust suction hose 510a extends out of the side wall of the fixed frame 110. A first one-way valve 510a-1 is installed on the body of the first dust suction hose 510a. A second dust suction hose 510b is also installed on the side wall of the fixed pipe 510, and the other end of the second dust suction hose 510b extends to the bottom of the second fixed plate 410. A second one-way valve 510b-1 is installed on the body of the second dust suction hose 510b. When the third gear 420b rotates, it drives the second gear 410a and the eccentric shaft rod 410a-1 to rotate. When the eccentric shaft rod 410a-1 rotates, it slides inside the second guiding groove 520b-1, and then drives the connecting plate 520a and the piston 520 to reciprocate inside the fixed pipe 510. When the piston 520 moves towards the outside of the fixed pipe 510, at this time, the first one-way valve 510a-1 closes and the second one-way valve 510b-1 opens, sucking the dust swept by the brush bristles 420a and inhaling the dust into the fixed pipe 510. When the piston 520 moves towards the inside of the fixed pipe 510, at this time, the first one-way valve 510a-1 opens and the second one-way valve 510b-1 closes, and the dust inside the fixed pipe 510 is output through the first dust suction hose 510a.

[0035] The collection component 600 includes an outer collection box 610 installed on the side wall of the fixed frame 110 and an inner collection box 620 located inside the outer collection box 610. A second accommodation groove 610a is formed in the side wall of the outer collection box 610. The other end of the first dust suction hose 510a extends out from the side wall of the fixed frame 110 and communicates with the inside of the second accommodation groove 610a. A collection groove 620a is formed at the top of the inner collection box 620. The inner collection box 620 is slidably connected inside the second accommodation groove 610a and closes the opening of the second accommodation groove 610a. A limiting hole 610b is formed at the top of the outer collection box 610. A fixed frame 620b is installed on the side wall of the inner collection box 620. A slide plate 620b-1 is slidably connected inside the fixed frame 620b. A spring 620b-2 is installed at the bottom of the slide plate 620b-1. A limiting rod 620b-3 is installed at the top of the slide plate 620b-1. The other end of the limiting rod 620b-3 penetrates through the limiting hole 610b. The dust output by the first dust suction hose 510a enters the inside of the second accommodation groove 610a and falls into the inside of the collection groove 620a for collection. During installation, first pull the slide plate 620b-1 to slide downward inside the fixed frame 620b and compress the spring 620b-2. The limiting rod 620b-3 follows the slide plate 620b-1 and is received inside the fixed frame 620b. At this time, push the inner collection box 620 into the inside of the second accommodation groove 610a. Release the slide plate 620b-1, and the spring 620b-2 rebounds to push the slide plate 620b-1 and the limiting rod 620b-3 to move upward. The limiting rod 620b-3 penetrates through the limiting hole 610b to limit the inner collection box 620 inside the second accommodation groove 610a. When it is full of collection, pull the slide plate 620b-1 to drive the limiting rod 620b-3 to move downward and be received inside the fixed frame 620b. The limiting rod 620b-3 separates from the inside of the limiting hole 610b. Pull out the inner collection box 620 from the opening of the second accommodation groove 610a to process the dust inside the collection groove 620a.

[0036] Although the present invention has been described above with reference to the embodiments, however, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A monitoring device based on ultrasonic cross-correlation flowmeter, characterized in that: include: The fixing seat (100) comprises two fixing frames (110) symmetrically arranged in an upper and lower direction and an ultrasonic measuring instrument (120) installed on the top of the upper fixing frame (110), and an abutment member (130) is installed on the inner wall of the fixing frame (110); A clamping platform (200), wherein the clamping platforms (200) are two and symmetrically located at two ends of the fixing seat (100), the clamping platform (200) comprises two clamping plates (210) symmetrically arranged up and down, and the two clamping platforms (200) are symmetrically turned upside down; A sensor moving assembly (300), wherein the sensor moving assembly (300) is in two parts and is respectively connected to the side walls of the two clamping platforms (200) and is located on both sides of the fixing seat (100); the two sensor moving assemblies (300) are connected to the ultrasonic measuring instrument (120) via a wire; the sensor moving assembly (300) on the left side is connected to the clamping plate (210) on the upper left side, and the sensor moving assembly (300) on the right side is connected to the clamping plate (210) on the lower right side; when the clamping platform (200) approaches or moves away from the fixing seat (100), the clamping platform (200) drives the sensor moving assembly (300) to move in opposite directions and keeps the distance between the two sensor moving assemblies (300) unchanged; A cleaning component (400) is mounted on a side wall of the sensor moving component (300), and when the sensor moving component (300) moves, it drives the cleaning component (400) to clean the surface of the pipeline; A dust collecting component (500) is mounted on a side wall of the sensor moving component (300) and connected to the cleaning component (400), and is used to absorb dust during cleaning; The collecting assembly (600) is mounted on the side wall of the fixing frame (110) and connected to the dust collecting assembly (500), and is used to collect the absorbed dust.

2. A monitoring device based on ultrasonic cross-correlation flowmeter according to claim 1, characterized in that: The side walls of the two fixing frames (110) are both installed with a first mounting plate (140), and a first bolt hole (140a) is opened on the top of the first mounting plate (140). The two first mounting plates (140) facing each other are connected by a first bolt (140b), and the first bolt (140b) rotates through the first bolt hole (140a). The pipeline is located between the two fixing frames (110), and the abutment (130) abuts against the outer wall of the pipeline.

3. A monitoring device based on ultrasonic cross-correlation flowmeter according to claim 1, characterized in that: A guide groove (110a) is provided on the inner wall of the fixing frame (110), and a flat rack (110a-1) is installed inside the guide groove (110a); A second mounting plate (230) is installed on the side wall of the clamping plate (210), a second bolt hole (230a) is provided on the top of the second mounting plate (230), two second mounting plates (230) symmetrically arranged in an upper and lower direction are connected via a second bolt (230b), the second bolt (230b) rotatably passes through the second bolt hole (230a), the two clamping plates (210) are provided with clamping grooves (220) on opposite sides, a rubber pad (220a) is installed on the inner wall of the clamping groove (220), the pipeline is located between the two clamping grooves (220), a first guide plate (240) is installed on the side wall of the upper clamping plate (210), a first gear (240a) is rotatably connected to the top of the first guide plate (240), the first gear (240a) is located inside the guide groove (110a) and is connected to the flat gear The first gear (240a) is meshed with a strip (110a-1), a first pulley (240a-1) is installed at the bottom of the first gear (240a), two first fixing plates (240b) are symmetrically installed at the bottom of the first gear (240a), a threaded rod (240b-1) is rotatably connected between the two first fixing plates (240b), a first bevel gear (240b-2) is installed on the rod body of the threaded rod (240b-1), a second pulley (240c) is rotatably connected at the bottom of the first gear (240a), the second pulley (240c) is connected to the first pulley (240a-1) via a belt, a second bevel gear (240c-1) is installed at the bottom of the second pulley (240c), and the second bevel gear (240c-1) is meshed with the first bevel gear (240b-2).

4. A monitoring device based on ultrasonic cross-correlation flowmeter according to claim 1, characterized in that: The sensor moving assembly (300) comprises a moving seat (310) and an ultrasonic sensor (320) mounted on the bottom of the moving seat (310); a first accommodating groove (310a) is provided at the bottom of the moving seat (310); an inclined plate (310a-1) is installed inside the first accommodating groove (310a); the ultrasonic sensor (320) is mounted on a side wall of the inclined plate (310a-1); the two inclined plates (310a-1) are arranged opposite to each other; and a threaded hole (310b) is provided on the side wall of the moving seat (310).

5. A monitoring device based on ultrasonic cross-correlation flowmeter according to claim 4, characterized in that: Two one-way racks (210a) are symmetrically mounted on the side wall of the clamping plate (210) located at the top, and the two one-way racks (210a) face in opposite directions; The cleaning components (400) are two and are symmetrically mounted on the left and right sides of the movable seat (310). The cleaning components (400) include a second fixed plate (410) mounted on the side wall of the movable seat (310) and a cleaning blade (420) rotatably connected to the bottom of the other end of the second fixed plate (410), and bristles (420a) are installed at the bottom of the cleaning blade (420). The symmetrical side walls of the second fixed plate (410) are rotatably connected to two one-way gears (430), and the two one-way gears (430) are arranged in opposite directions. The side walls of the one-way gears (430) are installed with a third pulley (430a). The symmetrical side walls of the movable seat (310) are arranged opposite to each other. Two extension plates (440) are arranged, the side wall of the extension plate (440) is rotatably connected to a fourth pulley (440a), the fourth pulley (440a) is connected to the third pulley (430a) via a belt, a rotating rod (440a-1) is installed on the side wall of the fourth pulley (440a), a fourth bevel gear (440a-2) is installed on the other end of the rotating rod (440a-1), a third gear (420b) is installed on the top of the cleaning blade (420), a third bevel gear (420b-1) is installed on the top of the third gear (420b), and the third bevel gear (420b-1) is meshed with the fourth bevel gear (440a-2).

6. A monitoring device based on ultrasonic cross-correlation flowmeter according to claim 5, characterized in that: A second gear (410a) is rotatably connected to the top of the second fixed plate (410), the second gear (410a) is meshed with the third gear (420b), and an eccentric shaft (410a-1) is installed on the top of the second gear (410a); The dust collection assembly (500) comprises a fixed tube (510) mounted on the top of the second fixed plate (410) and a piston (520) located inside the fixed tube (510); a connecting plate (520a) is mounted on the side wall of the piston (520); a transverse plate (520b) is mounted on the other end of the connecting plate (520a); a second guide groove (520b-1) is formed on the top of the transverse plate (520b); and the eccentric shaft (410a-1) is located inside the second guide groove (520b-1).

7. A monitoring device based on ultrasonic cross-correlation flowmeter according to claim 6, characterized in that: A first dust suction hose (510a) is installed on the side wall of the fixed tube (510), the other end of the first dust suction hose (510a) extends out of the side wall of the fixed frame (110), and a first one-way valve (510a-1) is installed on the body of the first dust suction hose (510a). A second dust suction hose (510b) is also installed on the side wall of the fixed tube (510), the other end of the second dust suction hose (510b) extends to the bottom of the second fixed plate (410), and a second one-way valve (510b-1) is installed on the body of the second dust suction hose (510b).

8. The monitoring device based on ultrasonic cross-correlation flowmeter according to claim 7, characterized in that: The dust collecting device further comprises a collecting assembly (600), wherein the collecting assembly (600) comprises an outer collecting box (610) mounted on the side wall of the fixing frame (110) and an inner collecting box (620) located inside the outer collecting box (610), wherein the side wall of the outer collecting box (610) is provided with a second receiving groove (610a), the other end of the first dust suction hose (510a) extends out from the side wall of the fixing frame (110) and is connected to the inside of the second receiving groove (610a), and the top of the inner collecting box (620) is provided with a collecting groove (620a), and the inner collecting box (620) is slidably connected inside the second receiving groove (610a) and closes the opening of the second receiving groove (610a).

9. A monitoring device based on ultrasonic cross-correlation flowmeter according to claim 8, characterized in that: A limiting hole (610b) is provided at the top of the outer collecting box (610); a fixing frame (620b) is installed on the side wall of the inner collecting box (620); a slide plate (620b-1) is slidably connected inside the fixing frame (620b); a spring (620b-2) is installed at the bottom of the slide plate (620b-1); a limiting rod (620b-3) is installed at the top of the slide plate (620b-1); and the other end of the limiting rod (620b-3) passes through the limiting hole (610b).

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