Ultrasonic flowmeter for flow detection

Abstract

The invention provides an ultrasonic flowmeter for flow detection, and relates to the field of flow detection.The ultrasonic flowmeter comprises a detection pipeline and a detection host, detection probes are arranged on the two sides of the detection host, two arc-shaped scrapers are arranged on the surface of the detection pipeline, and wiping cloth and two rolling shafts are arranged between the two arc-shaped scrapers; wiping cloth is wound on the surfaces of the two pieces of wiping cloth, a second adjusting box is arranged on one side of the guide plate and the detection probe, a pressing block and a plurality of coupling agent injectors are arranged in the second adjusting box, and a plurality of nozzles with the corresponding number are arranged below the coupling agent injectors through the guide effect of second guide grooves formed in the surface of the second adjusting box. Through automatic cleaning of the ultrasonic probe and automatic adding of the coupling agent, the maintenance time of equipment is prolonged, the maintenance frequency of workers is reduced, and then the safety coefficient of the workers in a dangerous operation area is improved.

Description

Technical Field

[0001] The invention relates to the technical field of flow detection, in particular to an ultrasonic flowmeter for flow detection. Background Art

[0002] Ultrasonic flowmeter is a device that uses ultrasonic waves to measure fluid flow. It is a non-contact measuring instrument that can measure flow without destroying the pipeline structure, so it is widely used in flow monitoring of liquids, gases, steam and other fluids.

[0003] The related clamp-on ultrasonic flowmeter usually needs to replace and maintain the probe regularly, such as cleaning the residual coupling agent on the probe and replacing it with a new coupling agent. It is used in areas that are difficult for workers to reach, such as high-altitude pipelines, underground pipelines, pipeline wells, or pipelines in large industrial equipment, or in more dangerous working areas. Long maintenance time is not conducive to increasing the safety factor of workers. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an ultrasonic flowmeter for flow detection, which improves and prolongs the maintenance time of the equipment and reduces the maintenance times of the staff through automatic cleaning of the ultrasonic probe and automatic addition of coupling agent, thereby facilitating improving the safety factor of the staff in dangerous working areas.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows: An ultrasonic flowmeter for flow detection comprises a detection pipeline and a detection host, wherein detection probes are arranged on both sides of the detection host, and comprises: Two arc-shaped scrapers are arranged on the surface of the detection pipe, and a wiping cloth and two rolling shafts are arranged between the two arc-shaped scrapers. The wiping cloth is wound around the surfaces of the two wiping cloths. When the coupling agent of the detection probe is replaced, the detection probe is moved away from the detection pipe along the radial direction of the detection pipe, so that the arc-shaped scraper moves toward the detection probe and preliminarily scrapes off the coupling agent on the bottom surface of the detection probe, and then the detection probe falls along the radial direction of the detection pipe and presses on the upper surface of the wiping cloth. The wiping cloth is driven by the rotation of the rolling shaft to wipe the surface of the detection pipe and the bottom of the detection probe; A guide plate, used for controlling the moving track of the detection probe through a first guide groove provided on the surface of the guide plate; A second adjustment box is provided at one side of the detection probe, and a pressing block and a plurality of coupling agent syringes are provided inside the second adjustment box. Through the guiding effect of a second guide groove provided on the surface of the second adjustment box, the pressing block presses one of the coupling agent syringes and then moves to above the adjacent coupling agent syringe. A corresponding number of nozzles are arranged below the coupling agent syringe, and the nozzles are used to evenly apply the coupling agent on the surface of the detection pipeline.

[0006] Furthermore, the surface of the detection pipe is fixedly connected to an adjusting rectangular rod via a clamp, two adjusting sliders are arranged in a first sliding groove opened on the surface of the adjusting rectangular rod, the adjusting sliders are slidably connected to the adjusting rectangular rod, the bottom surface of the adjusting slider is fixedly connected to an upper shell and a lower shell via a clamp, the detection probe is arranged on the surface of the upper shell, the surface of the upper shell is symmetrically fixedly connected to a U-shaped rod, and the guide plates are slidably connected to the corresponding U-shaped rods respectively.

[0007] Furthermore, a fixed frame is arranged between the two guide plates, the detection probe is fixedly connected to the inside of the fixed frame, and first adjusting boxes are symmetrically arranged on both sides of the fixed frame, and the surfaces of the first adjusting boxes are symmetrically fixedly connected with first connecting rods, and the first constraint rods are slidably connected in the first circular groove opened on the surface of the first connecting rod, and the first constraint rods are fixedly connected to the upper shell body, and the surfaces of the first adjusting boxes are fixedly connected with first guide blocks, and the two first guide blocks are respectively located in the corresponding first guide grooves, and two check plates are arranged in the first guide grooves, and the check plates are rotatably connected to the corresponding accommodating grooves opened in the first guide grooves through two third bearings, and the surface of the check plate is provided with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the check plate and the guide plate.

[0008] Furthermore, an L-shaped slider is slidably connected inside the first adjustment box, and the L-shaped slider is fixedly connected to the fixed frame. A plurality of compression springs are evenly arranged inside the first adjustment box, and both ends of the compression springs are fixedly connected to the first adjustment box and the L-shaped slider respectively.

[0009] Furthermore, a first connecting block is fixedly connected between the two guide plates, a second screw rod is threadedly connected in a first threaded hole opened on the surface of the first connecting block, and the second screw rod is rotatably connected to the upper shell body through two bearing seats, the arc scraper is arranged inside the upper shell body, and the arc scraper surface away from the adjusting rectangular rod is fixedly connected with a second connecting block, the second connecting block is slidably connected to the upper shell body through a second sliding groove opened on the surface of the upper shell body, and the second connecting block is fixedly connected to the first connecting block, and a hexagonal prism rod is symmetrically arranged inside the upper shell body, and the hexagonal prism rod is rotatably connected to the corresponding first through grooves opened on the surface of the upper shell body through two first bearings, and the scrolling shaft is rotatably connected to the corresponding second through grooves opened on the surfaces of the two arc scrapers through two second bearings, and the scrolling shaft is slidably connected to the corresponding hexagonal prism rod through the corresponding third sliding groove opened on the surface, and the arc scraper surface close to the adjusting rectangular rod is symmetrically fixedly connected with a guide strip.

[0010] Furthermore, the second adjusting box is fixedly connected to the first mounting groove opened on the surface of the upper shell body, a second rectangular block is symmetrically arranged inside the second adjusting box, and a second constraint rod is slidably connected to a plurality of third through grooves opened on the surface of the second rectangular block, the second constraint rod is fixedly connected to the second adjusting box, and a plurality of third constraint rods are fixedly connected between the second rectangular blocks, and the third constraint rods are slidably connected to the pressing block through the corresponding fourth through grooves opened on the surface of the pressing block, respectively, and the pressing block is inserted into the corresponding two second guide grooves, and a first motor is installed on the surface of the second adjusting box, and the output shaft of the first motor extends to the interior of the second adjusting box through the fifth through groove opened on the surface of the second adjusting box, and a third screw rod is fixedly connected to the end of the output shaft of the first motor, and the third screw rod is rotatably connected to the sixth through groove opened on the surface of the corresponding second rectangular block through a fourth bearing, and a spring rope is fixedly connected to the surface of the pressing block, and one end of the spring rope away from the pressing block is fixedly connected to one of the second rectangular blocks.

[0011] Furthermore, the coupling agent syringes are equidistantly arranged below the pressing block, the coupling agent syringes are fixedly connected to the inner wall of the second adjusting box through a bracket, an electric push rod is installed on the inner wall of the upper shell, the spray head is arranged at the end of the output shaft of the electric push rod, the output shaft of the electric push rod is fixedly connected to the adjacent coupling agent syringes, the two adjacent coupling agent syringes are fixedly connected, the bottom surface of the coupling agent syringe is in conflict with the surface of the detection pipeline, the spray head is connected to the inside of the corresponding coupling agent syringe through a hose, and a rectifier plate is fixedly connected to the inside of the spray head.

[0012] Furthermore, a dual-axis motor is installed on the surface of the adjusting rectangular rod, and gear boxes are symmetrically arranged on both sides of the dual-axis motor, the gear box is fixedly connected to the adjusting rectangular rod, and the interior of the gear box is rotatably connected to a first incomplete gear through a fifth bearing, and the output shafts of the dual-axis motor are respectively fixedly connected to the corresponding first incomplete gears, and the surface of the first incomplete gear is rotatably connected to a second incomplete gear through a first one-way bearing, and the surface of the second incomplete gear is in conflict with the inner wall of the gear box, and the surface of the first incomplete gear is meshed with the first gear, and the rotating shaft of the first gear is rotatably connected to the corresponding seventh through-groove opened on the surface of the gear box through a sixth bearing, and the surface of the first incomplete gear is meshed with the second gear, and the rotating shaft of the second gear is rotatably connected to the corresponding eighth through-groove opened on the surface of the gear box through a seventh bearing.

[0013] Furthermore, one end of the first gear shaft is fixedly connected to a first flexible shaft, and one end of the first flexible shaft away from the first gear is fixedly connected to the corresponding second screw rod; one end of the second gear shaft is fixedly connected to a second flexible shaft, and one end of the second flexible shaft away from the second gear is fixedly connected to one of the corresponding hexagonal prism rods.

[0014] Furthermore, an extrusion wedge is symmetrically and slidably connected in the fourth sliding groove opened inside the adjusting slider, and a spring rod is fixedly connected to the surface of the extrusion wedge, and one end of the spring rod away from the extrusion wedge is fixedly connected to the inner wall of the adjusting slider, and a second extrusion block is arranged between the two extrusion wedges, and the second extrusion block is slidably connected to the adjusting slider, and an adjusting threaded rod is threadedly connected in the second threaded hole opened on the surface of the second extrusion block, and the surface of the adjusting threaded rod near the bottom end is rotatably connected to the adjusting slider through an eighth bearing.

[0015] The above solution of the present invention includes at least the following beneficial effects: The above solution of the present invention makes it easy to clean the coupling agent on the bottom of the detection probe and the surface of the detection pipe through the coordination of the arc scraper, the scroll shaft and the wiping cloth, thereby reducing the influence of the residual coupling agent on the detection probe. Through the cooperation of the guide plate, the U-shaped rod, the first guide block, the check plate and the torsion spring, the detection probe is moved slightly, so as to facilitate the cleaning and coating of the coupling agent; Through the cooperation of the second adjustment box, the pressing block, the coupling agent syringe and the nozzle, the device can perform the coupling agent uniform coating action multiple times, which is beneficial to reduce the frequency of manual operation; By adjusting the coordination of the rectangular rod, the adjusting slider, the extrusion wedge, the spring rod, the second extrusion block, the adjusting threaded rod, the upper shell and the lower shell, etc., the detection host and the detection probe are easy to disassemble and assemble, so as to further improve the efficiency of manual maintenance, reduce the time of manual maintenance, and help to further improve the safety factor of workers in dangerous areas. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the second extrusion block in the present invention.

[0018] Figure 3 It is a schematic diagram of the adjustment slider in the present invention.

[0019] Figure 4 It is a schematic diagram of the fixed frame in the present invention.

[0020] Figure 5 It is a schematic diagram of the first connecting block in the present invention.

[0021] Figure 6 It is a schematic diagram of the second screw rod in the present invention.

[0022] Figure 7 Schematic diagram of the hexagonal prism rod in the present invention.

[0023] Figure 8 It is a schematic diagram of the wiping cloth in the present invention.

[0024] Fig. 9 It is a schematic diagram of the pressing block in the present invention.

[0025] Fig.10 It is a schematic diagram of the rectifier plate in the present invention.

[0026] Fig.11 The present invention Figure 4 Enlarged view of point A in the middle.

[0027] Fig.12 The present invention Figure 6 Enlarged view of point B in the middle.

[0028] Fig.13 It is a schematic diagram of the fixed path of the first guide block in the first guide groove in the present invention.

[0029] Fig.14 It is a schematic diagram of the first incomplete gear and the second incomplete gear in the present invention.

[0030] In the figure: 101, detection host; 102, detection probe; 201, adjusting rectangular rod; 202, adjusting slider; 204, squeezing wedge; 205, spring rod; 206, second squeezing block; 207, adjusting threaded rod; 301, upper housing; 302, lower housing; 304, fixed frame; 305, first adjustment box; 306, L-shaped slider; 307, compression spring; 308, first restraining rod; 309, first connecting rod; 310, first guide block; 311, U-shaped rod; 312, guide plate; 313, first connecting block; 314, second screw rod; 315, check plate; 316, torsion spring; 317, second connecting block; 318, arc scraper; 319, hexagonal prism rod; 320, scroll shaft; 321, wiping cloth; 322, guide strip; 401, second adjustment box; 402, pressing block; 403, second rectangular block; 404, second restraining rod; 405, third restraining rod; 406, third screw rod; 407, first motor; 408, spring rope; 409, coupling agent syringe; 410, electric push rod; 411, nozzle; 412, rectifier plate; 501, dual-axis motor; 502, gear box; 503, first incomplete gear; 504, first gear; 505, second incomplete gear; 506, second gear; 507, first flexible shaft; 508, second flexible shaft; 601. First guide groove; 602. Second guide groove. DETAILED DESCRIPTION

[0031] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] like Figures 1 to 14 As shown, an embodiment of the present invention provides an ultrasonic flowmeter for flow detection, including a detection pipeline and a detection host 101, and detection probes 102 are arranged on both sides of the detection host 101, including: Two arc-shaped scrapers 318 are arranged on the surface of the detection pipe, and a wiping cloth 321 and two rolling shafts 320 are arranged between the two arc-shaped scrapers 318. The wiping cloth 321 is wound around the surfaces of the two wiping cloths 321. When the coupling agent of the detection probe 102 is replaced, the detection probe 102 is moved away from the detection pipe along the radial direction of the detection pipe, so that the arc-shaped scraper 318 moves toward the direction close to the detection probe 102 and preliminarily scrapes off the coupling agent on the bottom surface of the detection probe 102. Then, the detection probe 102 falls along the radial direction of the detection pipe and is pressed on the upper surface of the wiping cloth 321. The rotation of the rolling shaft 320 drives the wiping cloth 321 to wipe the surface of the detection pipe and the bottom of the detection probe 102. The guide plate 312 is used to control the moving track of the detection probe 102 through a first guide groove 601 provided on the surface of the guide plate 312; A second adjustment box 401 is provided on one side of the detection probe 102. A pressing block 402 and a plurality of coupling agent syringes 409 are provided inside the second adjustment box 401. Through the guiding effect of the second guide groove provided on the surface of the second adjustment box 401, the pressing block 402 presses one of the coupling agent syringes 409 and then moves to the top of the adjacent coupling agent syringe 409. A number of corresponding nozzles 411 are arranged below the coupling agent syringe 409 , and the nozzles 411 are used to evenly apply the coupling agent on the surface of the detection pipeline.

[0033] The surface of the detection pipe is fixedly connected with an adjusting rectangular rod 201 through a clamp, and two adjusting sliders 202 are arranged in the first sliding groove opened on the surface of the adjusting rectangular rod 201. The adjusting slider 202 is slidably connected to the adjusting rectangular rod 201, and the bottom surface of the adjusting slider 202 is fixedly connected with the upper shell 301 and the lower shell 302 through a clamp. The detection probe 102 is arranged on the surface of the upper shell 301, and the surface of the upper shell 301 is symmetrically fixedly connected with U-shaped rods 311, and the guide plates 312 are slidably connected to the corresponding U-shaped rods 311 respectively.

[0034] An extrusion wedge 204 is symmetrically and slidably connected in the fourth sliding groove opened inside the adjusting slider 202, and a spring rod 205 is fixedly connected to the surface of the extrusion wedge 204. The end of the spring rod 205 away from the extrusion wedge 204 is fixedly connected to the inner wall of the adjusting slider 202. A second extrusion block 206 is arranged between the two extrusion wedges 204. The second extrusion block 206 is slidably connected to the adjusting slider 202. An adjusting threaded rod 207 is threadedly connected in the second threaded hole opened on the surface of the second extrusion block 206. The surface of the adjusting threaded rod 207 is rotatably connected to the adjusting slider 202 through an eighth bearing near the bottom end.

[0035] In the embodiment of the present invention, during the installation process of the detection host 101 and the detection probe 102, the detection host 101 is fixedly installed on the adjustment rectangular rod 201, and the adjustment rectangular rod 201 is fixedly connected to the detection pipe through a clamp, and the positions of the two adjustment sliders 202 in the adjustment rectangular rod 201 are adjusted so that the detection probe 102 is at a suitable distance, and a suitable installation method is selected so that the clamp below the adjustment slider 202 is fixed on the detection pipe, and the clamp below the adjustment slider 202 is provided with threaded threads on the surfaces of the upper clamp and the lower clamp, and the upper shell 301 is fixedly connected to the upper clamp. The lower shell 302 is fixedly connected to the lower clamp. If the Z method is used to install the detection probe 102, one of the detection probes 102 can be located below the other detection probe 102 by fixing the lower clamp to the adjustment slider 202; By adjusting the slider 202 to slide inside the adjusting rectangular rod 201, the two detection probes 102 on the surface of the upper shell 301 are quickly matched to a precise shooting angle, and by rotating the adjusting threaded rod 207, the second extrusion block 206 is moved downward inside the adjusting slider 202, so that the second extrusion block 206 simultaneously squeezes the inclined surfaces of the two extrusion wedge blocks 204, and the two extrusion wedge blocks 204 are respectively moved in the direction of stretching the corresponding spring rod 205, until the extrusion wedge blocks 204 conflict with the inner wall of the adjusting rectangular rod 201; By squeezing the larger static friction between the wedge block 204 and the adjusting rectangular rod 201, when the clamp under the adjusting slider 202 is not fixed to the detection pipe, the two upper shells 301 fixedly connected to the adjusting slider 202 through the upper clamp and the detection pipe are kept in a relatively fixed state, that is, the two detection probes 102 are in a relatively fixed state, so that the installation efficiency of the detection host 101 and the detection probe 102 is improved; When the coupling agent needs to be replaced, the corresponding detection probe 102 is moved along the pipeline radial direction in a direction away from the detection pipeline, and the arc scraper 318 is moved to make the arc scraper 318 firstly scrape off the coupling agent at the bottom of the detection probe 102 to reduce the cleaning burden of the wiping cloth 321. The detection probe 102 is reset to make the detection probe 102 pressed on the surface of the wiping cloth 321, and the rolling shaft 320 rotates in the same direction so that the wiping cloth 321 wipes the bottom of the detection probe 102 and the area of ​​the detection pipeline coated with the coupling agent to reduce the influence of the residual coupling agent on the detection probe 102. By selectively pressing the coupling agent syringe 409, the coupling agent stored in the coupling agent syringe 409 is evenly coated on the pressing area corresponding to the detection probe 102 through the nozzle 411, so that the error between the detection probe 102 and the original position is small after the coupling agent is replaced, so that the shooting angle between the two detection probes 102 is within the error range, thereby ensuring the signal strength of the ultrasonic wave. The multiple coupling agent syringes 409 allow the device to automatically replace the coupling agent multiple times to reduce manual maintenance.

[0036] A fixed frame 304 is arranged between the two guide plates 312, and the detection probe 102 is fixedly connected inside the fixed frame 304. First adjustment boxes 305 are symmetrically arranged on both sides of the fixed frame 304. The surfaces of the first adjustment boxes 305 are symmetrically fixedly connected with first connecting rods 309. The first constraint rods 308 are slidably connected in the first circular groove opened on the surface of the first connecting rod 309. The first constraint rods 308 are fixedly connected to the upper shell 301. The surfaces of the first adjustment boxes 305 are fixedly connected with first guide blocks 310. The two first guide blocks 310 are respectively located in the corresponding first guide grooves 601. Two check plates 315 are arranged in the first guide grooves 601. The check plates 315 are rotatably connected to the corresponding accommodating grooves opened in the first guide grooves 601 through two third bearings. A torsion spring 316 is arranged on the surface of the check plate 315. The two ends of the torsion spring 316 are respectively fixedly connected to the check plate 315 and the guide plate 312.

[0037] The first adjustment box 305 is internally slidably connected with an L-shaped slider 306, which is fixedly connected to the fixed frame 304. A plurality of compression springs 307 are evenly arranged inside the first adjustment box 305, and both ends of the compression springs 307 are fixedly connected to the first adjustment box 305 and the L-shaped slider 306, respectively.

[0038] In the embodiment of the present invention, the detection probe 102 fixed inside the fixing frame 304 is constrained by the first connecting rod 309 and the first constraining rod 308 so that the detection probe 102 can only move along the radial direction of the pipeline, so as to reduce the position deviation of the detection probe 102 during the replacement of the coupling agent; When the first adjustment box 305 slides on the surface of the first constraint rod 308 toward the detection pipe through the first connecting rod 309 until the bottom of the detection probe 102 contacts the detection pipe, the first adjustment box 305 continues to move to compress the compression spring 307, so that the resistance force of the detection probe 102 on the detection pipe is positively correlated with the elastic potential energy of the L-shaped slider 306, so as to reduce the damage caused by excessive resistance between the detection probe 102 and the detection pipe. The setting of the check plate 315 and the torsion spring 316 enables the first guide block 310 to move only along the fixed path inside the first guide groove 601, that is, when the first guide block 310 moves along the fixed path, after contacting the check plate 315 and continuing to move, the check plate 315 will overcome the elastic potential energy of the torsion spring 316, causing the check plate 315 to rotate, thereby preventing the check plate 315 from obstructing the movement of the first guide block 310. When the guide plate 312 is reset, if the first guide block 310 tends to deviate from the fixed path in the first guide groove 601, the check plate 315 will conflict with the inner wall of the accommodating groove, causing the check plate 315 to obstruct the first guide block 310, thereby allowing the first guide block 310 to maintain movement along the fixed path.

[0039] A first connecting block 313 is fixedly connected between the two guide plates 312, a second screw rod 314 is threadedly connected to a first threaded hole on the surface of the first connecting block 313, the second screw rod 314 is rotatably connected to the upper shell 301 through two bearing seats, an arc scraper 318 is arranged inside the upper shell 301, a second connecting block 317 is fixedly connected to the surface of the arc scraper 318 away from the adjusting rectangular rod 201, the second connecting block 317 is slidably connected to the upper shell 301 through a second slide groove on the surface of the upper shell 301, and the second connecting block 317 is connected to the first A connecting block 313 is fixedly connected, and a hexagonal prism rod 319 is symmetrically arranged inside the upper shell 301. The hexagonal prism rod 319 is rotatably connected to the corresponding first through groove opened on the surface of the upper shell 301 through two first bearings, and the scrolling shaft 320 is rotatably connected to the corresponding second through groove opened on the surface of the two arc-shaped scrapers 318 through two second bearings. The scrolling shaft 320 is slidably connected to the corresponding hexagonal prism rod 319 through the corresponding third sliding groove opened on the surface, and the surface of the arc scraper 318 close to the adjusting rectangular rod 201 is symmetrically fixedly connected with a guide strip 322.

[0040] In the embodiment of the present invention, when the first adjustment box 305 moves along the surface of the first constraint rod 308 through the first connecting rod 309, the guide plate 312 cooperates with the first guide block 310 through the first guide groove 601, so that the movement of the first adjustment box 305 is constrained by the first guide groove 601, thereby controlling the movement of the detection probe 102; When the second screw rod 314 rotates, it drives the first connection block 313 to move along the axial direction of the detection pipe on the surface of the second screw rod 314. The movement of the first connection block 313 simultaneously drives the two guide plates 312 to move on the surfaces of the corresponding U-shaped rods 311, so that the first guide block 310 moves under the constraint of the first guide groove 601. The movement of the first connecting block 313 drives the arc scraper 318 to move along the axial direction of the detection pipe inside the upper shell 301 through the second connecting block 317, so that the arc scraper 318 close to the detection probe 102 can preliminarily scrape off the old coupling agent at the bottom of the detection probe 102. As the arc scraper 318 continues to move toward the direction of the adjusting rectangular rod 201, the wiping cloth 321 moves to the bottom of the corresponding detection probe 102, so that the detection probe 102 falls and is pressed on the upper surface of the wiping cloth 321. By making the two scroll shafts 320 rotate in the same direction, the wiping cloth 321 wipes the surface of the detection pipe and the bottom of the detection probe 102 at the same time, so as to further clean the old coupling agent. The guide bar 322 makes the old coupling agent scraped off by the arc-shaped scraper 318 move toward the bottom of the detection pipe under the constraint of the guide bar 322, so as to reduce the area where the old coupling agent adheres to the surface of the detection pipe, so as to reduce the cleaning burden of the wiping cloth 321 on the old coupling agent accumulated in the process of multiple coupling agent replacements. When the detection probe 102 is located above the detection pipe, when the guide strip 322 follows the arc scraper 318 to scrape the bottom of the corresponding detection probe 102, the old coupling agent will slide toward the scroll shaft 320 along the surface of the guide strip 322. When the detection probe 102 is located below the detection pipe, when the guide strip 322 follows the arc scraper 318 to scrape the bottom of the corresponding detection probe 102, the old coupling agent will fall on the inner wall of the upper shell 301 under the influence of gravity along the surface of the guide strip 322 parallel to the radial direction of the detection pipe, or flow out of the interior of the upper shell 301 from between the two semicircular shells of the upper shell 301. After the wiping action of the wiping cloth 321 is completed, the guide plate 312 is reset, and under the constraint of the first guide groove 601, the corresponding detection probe 102 moves along the radial direction of the detection pipe away from the wiping cloth 321, so that the arc scraper 318 moves following the reset movement of the guide plate 312.

[0041] The second adjustment box 401 is fixedly connected to the first installation groove opened on the surface of the upper shell 301, and the second adjustment box 401 is symmetrically provided with a second rectangular block 403. The second constraint rods 404 are slidably connected in a plurality of third through grooves opened on the surface of the second rectangular block 403. The second constraint rods 404 are fixedly connected to the second adjustment box 401, and a plurality of third constraint rods 405 are fixedly connected between the second rectangular blocks 403. The third constraint rods 405 are slidably connected to the pressing block 402 through the corresponding fourth through grooves opened on the surface of the pressing block 402, and the pressing block 402 is inserted in the corresponding two second Inside the guide groove 602, a first motor 407 is installed on the surface of the second adjusting box 401, and the output shaft of the first motor 407 extends to the interior of the second adjusting box 401 through the fifth through groove opened on the surface of the second adjusting box 401, and the end of the output shaft of the first motor 407 is fixedly connected to the third screw rod 406, and the third screw rod 406 is rotatably connected to the sixth through groove opened on the surface of the corresponding second rectangular block 403 through the fourth bearing, and a spring rope 408 is fixedly connected to the surface of the pressing block 402, and the end of the spring rope 408 away from the pressing block 402 is fixedly connected to one of the second rectangular blocks 403.

[0042] The coupling agent syringes 409 are equidistantly arranged below the pressing block 402, and are fixedly connected to the inner wall of the second adjustment box 401 through a bracket. An electric push rod 410 is installed on the inner wall of the upper shell 301, and a nozzle 411 is arranged at the end of the output shaft of the electric push rod 410. The output shaft of the electric push rod 410 is fixedly connected to the adjacent coupling agent syringe 409, and the two adjacent coupling agent syringes 409 are fixedly connected. The bottom surface of the coupling agent syringe 409 is in conflict with the surface of the detection pipeline. The nozzle 411 is connected to the inside of the corresponding coupling agent syringe 409 through a hose, and a rectifier plate 412 is fixedly connected to the inside of the nozzle 411.

[0043] In the embodiment of the present invention, after the old coupling agent at the bottom of the detection probe 102 and the old coupling agent in the corresponding area of ​​the detection pipe surface are cleaned to a suitable degree, the coupling agent syringe 409 is controlled to extend toward the direction of the corresponding detection probe 102, so that one of the nozzles 411 moves to a set position along the surface of the detection pipe, and then the pressing block 402 is moved toward the direction of the corresponding coupling agent syringe 409 until the pressing block 402 drives the piston rod of the coupling agent syringe 409 to move in the direction of squeezing the coupling agent inside the coupling agent syringe 409, so that the coupling agent inside the coupling agent syringe 409 is evenly squeezed to the corresponding area on the surface of the detection pipe through the nozzle 411, and then the detection probe 102 is moved along the radial direction of the detection pipe toward the detection pipe until the detection probe 102 presses the detection pipe to the area coated with the new coupling agent. In this process, the position change of the detection probe 102 compared with the position before the coupling agent is replaced is within the error range; During the process of replacing the coupling agent multiple times, the pressing block 402 is located above the coupling agent syringe 409 closest to the detection probe 102 inside the second adjustment box 401, and the spring rope 408 on the surface of the pressing block 402 is fixed to the second rectangular block 403 farthest from the corresponding detection probe 102. The third screw rod 406 is driven to rotate by the first motor 407, so that the second rectangular block 403 moves on the surface of the second constraint rod 404 toward the detection pipe, and then the two second rectangular blocks 403 drive the pressing block 402 to move in the direction of squeezing the coupling agent syringe 409 through the third constraint rod 405. When the pressing block 402 moves to the nearest point to the detection pipe, under the action of the elastic potential energy of the spring rope 408, the pressing block 402 moves toward the adjacent coupling agent syringe 409 on the surface of the third constraint rod 405 under the constraint of the second guide groove 602 until it moves above the adjacent coupling agent syringe 409, so as to facilitate the next coupling agent coating action; The coupling agent in the coupling agent syringe 409 enters the hose from the bottom nozzle of the coupling agent syringe 409 under the pressure of the pressing block 402, and enters the corresponding nozzle 411 from the hose, and is evenly coated on the corresponding area on the surface of the detection pipeline under the combing of the rectifying plate 412; When the coupling agent is applied to the surface of the detection pipe from the bottom groove of the nozzle 411, the electric push rod 410 is contracted at a uniform speed so that the coupling agent flowing out from the bottom of the nozzle 411 can be evenly applied to the corresponding area on the surface of the detection pipe.

[0044] A dual-axis motor 501 is installed on the surface of the adjusting rectangular rod 201, and gear boxes 502 are symmetrically arranged on both sides of the dual-axis motor 501. The gear box 502 is fixedly connected to the adjusting rectangular rod 201. The interior of the gear box 502 is rotatably connected to a first incomplete gear 503 through a fifth bearing. The output shafts of the dual-axis motor 501 are fixedly connected to the corresponding first incomplete gears 503 respectively. The surface of the first incomplete gear 503 is rotatably connected to a second incomplete gear 505 through a first one-way bearing. The surface of the second incomplete gear 505 conflicts with the inner wall of the gear box 502. The surface of the first incomplete gear 503 is meshed with a first gear 504. The rotating shaft of the first gear 504 is rotatably connected to the corresponding seventh through groove opened on the surface of the gear box 502 through a sixth bearing. The surface of the first incomplete gear 503 is meshed with a second gear 506. The rotating shaft of the second gear 506 is rotatably connected to the corresponding eighth through groove opened on the surface of the gear box 502 through a seventh bearing.

[0045] One end of the rotating shaft of the first gear 504 is fixedly connected to the first flexible shaft 507, and the end of the first flexible shaft 507 away from the first gear 504 is fixedly connected to the corresponding second screw rod 314. One end of the rotating shaft of the second gear 506 is fixedly connected to the second flexible shaft 508, and the end of the second flexible shaft 508 away from the second gear 506 is fixedly connected to one of the corresponding hexagonal prism rods 319.

[0046] In the embodiment of the present invention, during the process of replacing the coupling agent, the dual-axis motor 501 is operated to make the first incomplete gears 503 inside the two gear boxes 502 rotate synchronously, and the first incomplete gear 503 drives the first gear 504 to rotate through the two sections of teeth distributed on the surface. When the longer tooth section drives the first gear 504 to rotate, the first gear 504 drives the second screw rod 314 to rotate through the first flexible shaft 507, so that the first connecting block 313 drives the guide plate 312 to move toward the direction close to the corresponding detection probe 102, so that the corresponding detection probe 102 is first away from the detection pipeline, so that the arc The shaped scraper 318 preliminarily scrapes off the coupling agent on the bottom of the detection probe 102, and then the detection probe 102 is pressed onto the surface of the wiping cloth 321. After the detection probe 102 is pressed onto the surface of the wiping cloth 321, the longer tooth segment on the surface of the first incomplete gear 503 is separated from the first gear 504. At this time, the second screw rod 314 no longer rotates, so that the detection probe 102 is stably pressed onto the surface of the wiping cloth 321 for a certain period of time. When the shorter tooth segment on the surface of the first incomplete gear 503 meshes with the first gear 504 for transmission, the detection probe 102 moves away from the detection pipe, and the coupling agent cleaning action is completed at this time. When the longer tooth segment on the surface of the first incomplete gear 503 is separated from the first gear 504, the teeth on the surface of the second incomplete gear 505 mesh with the second gear 506 for transmission. The rotation of the second gear 506 drives one of the hexagonal prism rods 319 to rotate through the second flexible shaft 508. The rotation of the hexagonal prism rod 319 causes the rolling shaft 320 to roll the wiping cloth 321 in one direction. During the rolling process of the wiping cloth 321, the wiping cloth 321 drives the other rolling shaft 320 to rotate synchronously, so as to complete the action of the wiping cloth 321 cleaning the old coupling agent from the detection probe 102 and the detection pipeline; When the first incomplete gear 503 rotates in the reverse direction, the first incomplete gear 503 drives the guide plate 312 to reset through the transmission of the first gear 504 and the first flexible shaft 507, and the detection probe 102 remains away from the detection pipeline to avoid interfering with the reset action of the arc scraper 318. When the guide plate 312 is reset to a position close to the initial position, the detection probe 102 moves toward the direction close to the detection pipeline under the constraint of the inclined section of the first guide groove 601 until the detection probe 102 hits the same position on the surface of the detection pipeline. Under the friction force generated by the second incomplete gear 505 and the inner wall of the gear box 502 and the action of the first one-way bearing, the reverse rotation of the first incomplete gear 503 no longer drives the second incomplete gear 505 to rotate, and the second incomplete gear 505 and the gear box 502 remain relatively still, that is, the hexagonal rod 319 and the scroll shaft 320 no longer rotate, and the wiping cloth 321 no longer performs the wiping action; During the resetting process of the arc scraper 318, when the arc scraper 318 close to the adjusting rectangular rod 201 leaves the area where the coupling agent is applied to the detection pipeline, the electric push rod 410 drives the nozzle 411 to move to the corresponding coating area to start applying the coupling agent. The process of applying the coupling agent is that the guide plate 312 is reset to the detection probe 102 and moves toward the direction close to the detection pipeline under the constraint of the inclined section of the first guide groove 601.

[0047] One end of the rotating shaft of the first gear 504 is fixedly connected to the first flexible shaft 507, and the end of the first flexible shaft 507 away from the first gear 504 is fixedly connected to the corresponding second screw rod 314. One end of the rotating shaft of the second gear 506 is fixedly connected to the second flexible shaft 508, and the end of the second flexible shaft 508 away from the second gear 506 is fixedly connected to one of the corresponding hexagonal prism rods 319.

[0048] It should be noted that the detection host 101 and the detection probe 102 are electrically connected via a cable (not shown in the figure), and the working principle and use process of the detection host 101 and the detection probe 102 are well known in the prior art and will not be described in detail here; In the present application, the fixing is performed by bolts, specifically, the bolts are threadedly connected in the corresponding preset thread grooves, which is well known in the prior art and will not be described in detail here; In the present application, the two ends of the pipe are connected by a hose, and are respectively fixed in a preset through-hole, which is well known in the prior art and will not be described in detail here; The upper shell 301 is composed of two non-contacting semicircular shells, and the two semicircular shells are fixedly connected by two U-shaped rods 311; The cross-sectional shape of the first sliding groove provided on the surface of the adjusting rectangular rod 201 is a cross, so that the corresponding adjusting slider 202 can only move along the axial direction of the adjusting rectangular rod 201; The bottom and top nozzles of the coupling agent syringe 409 are sealed with a sealing film, so that the storage time of the coupling agent in the coupling agent syringe 409 can be extended. When the piston rod of the coupling agent syringe 409 squeezes the coupling agent in the coupling agent syringe 409, the sealing film at the top nozzle is torn by the movement of the piston rod, and the transparent film at the bottom nozzle is broken by the large positive pressure in the coupling agent syringe 409, so that the coupling agent in the coupling agent syringe 409 enters the nozzle 411.

[0049] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An ultrasonic flowmeter for flow detection, comprising a detection pipeline and a detection host, wherein detection probes are arranged on both sides of the detection host, characterized in that: include: Two arc-shaped scrapers are arranged on the surface of the detection pipe, and a wiping cloth and two rolling shafts are arranged between the two arc-shaped scrapers. The wiping cloth is wound around the surfaces of the two wiping cloths. When the coupling agent of the detection probe is replaced, the detection probe is moved away from the detection pipe along the radial direction of the detection pipe, so that the arc-shaped scraper moves toward the detection probe and preliminarily scrapes off the coupling agent on the bottom surface of the detection probe, and then the detection probe falls along the radial direction of the detection pipe and presses on the upper surface of the wiping cloth. The wiping cloth is driven by the rotation of the rolling shaft to wipe the surface of the detection pipe and the bottom of the detection probe; A guide plate, used for controlling the moving track of the detection probe through a first guide groove provided on the surface of the guide plate; A second adjustment box is provided at one side of the detection probe, and a pressing block and a plurality of coupling agent syringes are provided inside the second adjustment box. Through the guiding effect of a second guide groove provided on the surface of the second adjustment box, the pressing block presses one of the coupling agent syringes and then moves to above the adjacent coupling agent syringe. A corresponding number of nozzles are arranged below the coupling agent syringe, and the nozzles are used to evenly apply the coupling agent on the surface of the detection pipeline.

2. The ultrasonic flowmeter for flow detection according to claim 1, characterized in that: The surface of the detection pipe is fixedly connected with an adjusting rectangular rod through a clamp, and two adjusting sliders are arranged in a first sliding groove opened on the surface of the adjusting rectangular rod, and the adjusting sliders are slidably connected to the adjusting rectangular rod, and the bottom surface of the adjusting slider is fixedly connected with an upper shell and a lower shell through a clamp, and the detection probe is arranged on the surface of the upper shell, and the surface of the upper shell is symmetrically fixedly connected with U-shaped rods, and the guide plates are slidably connected to the corresponding U-shaped rods respectively.

3. The ultrasonic flowmeter for flow detection according to claim 2, characterized in that: A fixed frame is arranged between the two guide plates, the detection probe is fixedly connected to the inside of the fixed frame, first adjustment boxes are symmetrically arranged on both sides of the fixed frame, the surfaces of the first adjustment boxes are symmetrically fixedly connected with first connecting rods, a first constraint rod is slidably connected in a first circular groove opened on the surface of the first connecting rod, the first constraint rods are fixedly connected to the upper shell body, the surfaces of the first adjustment boxes are fixedly connected with first guide blocks, the two first guide blocks are respectively located in the corresponding first guide grooves, two check plates are arranged in the first guide grooves, the check plates are rotatably connected to the corresponding accommodating grooves opened in the first guide grooves through two third bearings, a torsion spring is arranged on the surface of the check plate, and the two ends of the torsion spring are respectively fixedly connected to the check plate and the guide plate.

4. The ultrasonic flowmeter for flow detection according to claim 3, characterized in that: An L-shaped slider is slidably connected inside the first adjustment box, and the L-shaped slider is fixedly connected to the fixed frame. A plurality of compression springs are evenly arranged inside the first adjustment box, and both ends of the compression springs are fixedly connected to the first adjustment box and the L-shaped slider respectively.

5. The ultrasonic flowmeter for flow detection according to claim 4, characterized in that: A first connecting block is fixedly connected between the two guide plates, and a second screw rod is threadedly connected in a first threaded hole opened on the surface of the first connecting block, and the second screw rod is rotatably connected to the upper shell body through two bearing seats, and the arc scraper is arranged inside the upper shell body, and the arc scraper surface away from the adjusting rectangular rod is fixedly connected with a second connecting block, and the second connecting block is slidably connected to the upper shell body through a second sliding groove opened on the surface of the upper shell body, and the second connecting block is fixedly connected to the first connecting block, and a hexagonal prism rod is symmetrically arranged inside the upper shell body, and the hexagonal prism rod is rotatably connected to the corresponding first through grooves opened on the surface of the upper shell body through two first bearings, and the scrolling shaft is rotatably connected to the corresponding second through grooves opened on the surfaces of the two arc scrapers through two second bearings, and the scrolling shaft is slidably connected to the corresponding hexagonal prism rod through the corresponding third sliding groove opened on the surface, and the arc scraper surface close to the adjusting rectangular rod is symmetrically fixedly connected with a guide strip.

6. The ultrasonic flowmeter for flow detection according to claim 5, characterized in that: The second adjusting box is fixedly connected to the first mounting groove opened on the surface of the upper shell body, a second rectangular block is symmetrically arranged inside the second adjusting box, and a second constraint rod is slidably connected to a plurality of third through grooves opened on the surface of the second rectangular block, the second constraint rod is fixedly connected to the second adjusting box, and a plurality of third constraint rods are fixedly connected between the second rectangular blocks, and the third constraint rods are respectively slidably connected to the pressing block through the corresponding fourth through grooves opened on the surface of the pressing block, and the pressing block is inserted into the corresponding two second guide grooves, a first motor is installed on the surface of the second adjusting box, and the output shaft of the first motor extends to the interior of the second adjusting box through the fifth through groove opened on the surface of the second adjusting box, and a third screw rod is fixedly connected to the end of the output shaft of the first motor, and the third screw rod is rotatably connected to the sixth through groove opened on the surface of the corresponding second rectangular block through a fourth bearing, and a spring rope is fixedly connected to the surface of the pressing block, and one end of the spring rope away from the pressing block is fixedly connected to one of the second rectangular blocks.

7. The ultrasonic flowmeter for flow detection according to claim 6, characterized in that: The coupling agent syringes are equidistantly arranged below the pressing block, and are fixedly connected to the inner wall of the second adjustment box through a bracket. An electric push rod is installed on the inner wall of the upper shell, and the spray head is arranged at the end of the output shaft of the electric push rod. The output shaft of the electric push rod is fixedly connected to the adjacent coupling agent syringes, and the two adjacent coupling agent syringes are fixedly connected. The bottom surface of the coupling agent syringe is in conflict with the surface of the detection pipeline, and the spray head is connected to the inside of the corresponding coupling agent syringe through a hose, and a rectifier plate is fixedly connected to the inside of the spray head.

8. The ultrasonic flowmeter for flow detection according to claim 7, characterized in that: A double-axis motor is installed on the surface of the adjusting rectangular rod, and gear boxes are symmetrically arranged on both sides of the double-axis motor, the gear box is fixedly connected to the adjusting rectangular rod, and the interior of the gear box is rotatably connected to a first incomplete gear through a fifth bearing, and the output shafts of the double-axis motor are respectively fixedly connected to the corresponding first incomplete gears, and the surface of the first incomplete gear is rotatably connected to a second incomplete gear through a first one-way bearing, and the surface of the second incomplete gear conflicts with the inner wall of the gear box, and the surface of the first incomplete gear is meshed with the first gear, and the rotating shaft of the first gear is rotatably connected to the corresponding seventh through-groove opened on the surface of the gear box through a sixth bearing, and the surface of the first incomplete gear is meshed with the second gear, and the rotating shaft of the second gear is rotatably connected to the corresponding eighth through-groove opened on the surface of the gear box through a seventh bearing.

9. The ultrasonic flowmeter for flow detection according to claim 8, characterized in that: One end of the first gear shaft is fixedly connected to a first flexible shaft, and one end of the first flexible shaft away from the first gear is fixedly connected to the corresponding second screw rod. One end of the second gear shaft is fixedly connected to a second flexible shaft, and one end of the second flexible shaft away from the second gear is fixedly connected to a corresponding one of the hexagonal prism rods.

10. The ultrasonic flowmeter for flow detection according to claim 2, characterized in that: An extrusion wedge is symmetrically and slidably connected in the fourth sliding groove opened inside the adjusting slider, and a spring rod is fixedly connected to the surface of the extrusion wedge, and one end of the spring rod away from the extrusion wedge is fixedly connected to the inner wall of the adjusting slider. A second extrusion block is arranged between the two extrusion wedges, and the second extrusion block is slidably connected to the adjusting slider, and an adjusting threaded rod is threadedly connected in the second threaded hole opened on the surface of the second extrusion block, and the surface of the adjusting threaded rod near the bottom end is rotatably connected to the adjusting slider through an eighth bearing.

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