Pipeline water leakage quantity metering device

Abstract

The invention provides a water quantity metering device for pipeline leakage. The water quantity metering device comprises a pipeline, the device further comprises a metering mechanism, and a filtering and trash holding mechanism is arranged above the metering mechanism. The filtering and trash holding mechanism comprises a shell; the shell is arranged below the pipeline, and a top opening of the shell is provided with a blocking net; one side of the shell is connected with the metering mechanism through a flow guide pipe, and a filter screen is installed at the end, connected with the shell, of the flow guide pipe. A movable hole tamping seat is arranged on one side, far away from the shell, of the filter screen, and a movable scraping plate is arranged on the other side of the filter screen; the linear adjusting mechanism is used for adjusting the position of the metering mechanism in the length direction below the shell; and a camera is mounted on the linear adjusting mechanism. The camera and the metering mechanism are driven by the linear adjusting mechanism to move in the length direction of the pipeline, all positions in the length direction of the pipeline can be monitored, a water leakage point is confirmed, and then the water leakage condition of the water leakage point is metered.

Description

Technical Field

[0001] The invention relates to the field of pipeline leakage water volume, and in particular to a pipeline leakage water volume metering device. Background Art

[0002] By measuring the amount of water leaking from the pipeline, it is used to assess the severity of the leakage, making it easier for maintenance personnel to formulate maintenance plans.

[0003] The pipe leakage water volume metering device in the prior art is directly arranged below the leakage point to collect the leaked water for measurement. During measurement, the top of the collecting container is always open, and foreign matter may enter. For example, in outdoor environments, due to strong winds, leaves, sand and gravel may enter the container together with the leaked water, which may affect the measurement. Summary of the invention

[0004] The present invention provides a pipeline leakage water metering device to solve the technical problem that there is a lack of design for filtering and blocking external foreign objects above the metering device.

[0005] The present invention solves the above technical problems through the following technical solutions: The present invention provides a device for measuring the amount of water leakage in a pipeline, comprising a pipeline; and further comprising: A metering mechanism, wherein a filtering and blocking mechanism is arranged above the metering mechanism; The filtering and blocking mechanism comprises a shell; the shell is arranged below the pipeline, and a blocking net is arranged at the top opening of the shell; one side of the shell is connected to the metering mechanism through a guide pipe, and a filter net is installed at one end of the guide pipe connected to the shell; A movable punching seat is provided on one side of the filter away from the housing, and a movable scraper is provided on the other side of the filter, wherein the punching seat and the scraper are used to clean the mesh of the filter and the side of the filter located inside the housing, respectively; A cleaning mechanism, the cleaning mechanism is used to clean and remove debris above the blocking net; A linear adjustment mechanism is used to adjust the position of the metering mechanism in the length direction below the shell; a camera is installed on the linear adjustment mechanism.

[0006] In this technical solution, the camera and the metering mechanism are driven to move along the length of the pipeline by a linear adjustment mechanism, so that various positions along the length of the pipeline can be monitored, the leakage point can be confirmed, and the leakage situation at the leakage point can be measured afterwards.

[0007] Preferably, the metering mechanism comprises a metering cylinder; the top end of the metering cylinder is fixedly connected to the bottom surface of the shell, a liquid level meter is arranged inside the metering cylinder, and a drain valve is installed at the bottom of the metering cylinder.

[0008] In the technical solution, the metering mechanism is used to detect the leakage of the leaking point.

[0009] Preferably, a frame is installed on the movable part of the linear adjustment mechanism, and an elastic connecting mechanism is installed on both sides of the frame, and the elastic connecting mechanism includes a strip shell fixedly connected to the side wall of the frame; a vertically arranged guide bar is fixedly installed in the strip shell, the movable frame is slidably connected to the guide bar, and the bottom of the movable frame is elastically connected to the bottom inner wall of the strip shell through a first spring; the bottoms of the movable frames of the two elastic connecting mechanisms are respectively fixed with a first connecting frame and a second connecting frame; the bottom end of the first connecting frame is fixed to a side wall of the shell, and the bottom end of the second connecting frame is connected to a protective box, and the protective box is fixed to a side wall of the shell.

[0010] Preferably, a plurality of equally spaced extrusion protrusions are vertically fixedly mounted on the inner wall of the strip shell, a recess is formed between every two adjacent extrusion protrusions, and the extrusion protrusions and the recess form a wavy walking surface; the walking surface is abutted against an elastic movable rod.

[0011] Preferably, the elastic movable rod includes a second guide seat fixedly connected to the movable frame; a through hole is opened on the second guide seat, and a rod body is connected to the through hole with a clearance fit, a second spring is sleeved on the rod body, and the rod body is elastically connected to the second guide seat through the second spring; a second connecting rod is fixedly connected to the end of the rod body away from the walking surface, the second connecting rod extends to the inside of the guide pipe, and the second connecting rod is connected to the tamping seat.

[0012] In the technical solution, when measuring leakage, the gradually increasing gravity of the metering mechanism provides a power source for the tamping seat, thereby cleaning the mesh of the filter.

[0013] Preferably, the cleaning mechanism includes a second motor fixedly mounted to the bottom of the first connecting frame; the output shaft end of the second motor is connected to a cleaning rod, the bottom surface of the cleaning rod is flush with the top surface of the barrier net, and a pressure rod is fixed to the end of the cleaning rod away from the second motor.

[0014] In this technical solution, the cleaning mechanism can clean up the debris blocking the net to prevent the debris from blocking the net.

[0015] Preferably, a movable bar is arranged above the protection box; the movable bar is arc-shaped, and the bottom surface of the movable bar is flush with the horizontal plane, the width of the movable bar gradually decreases from front to back, and the top surface of the movable bar abuts against the bottom end of the pressure rod.

[0016] In the technical solution, when the cleaning mechanism is in operation, the pressure rod thereon moves on the movable bar to provide thrust for the movable bar.

[0017] Preferably, the protective box includes a bottom shell; two sides of the bottom shell are respectively fixedly connected to the bottom end of the second connecting frame and the side wall of the shell, the top port of the bottom shell is fixedly connected to a corrugated soft sleeve, and a plug is fixedly installed on the top port of the corrugated soft sleeve; the top surface of the plug is fixedly connected to the bottom surface of the movable bar.

[0018] Preferably, a driving mechanism is provided in the protection box; the driving mechanism includes a first rack; the top end of the first rack is fixedly connected to the bottom surface of the block, the first rack is meshedly connected to the first cylindrical gear, and the first cylindrical gear is fixedly connected to a rotating shaft, the rotating shaft is rotatably installed in the bottom shell, the first cylindrical gear is coaxially fixedly connected to the first bevel gear, the first bevel gear is meshedly connected to the second bevel gear, the second bevel gear is coaxially fixedly connected to the second cylindrical gear, the second cylindrical gear is rotatably installed in the bottom shell, the second cylindrical gear is meshedly connected to the second rack, and the second rack is elastically connected to the bottom shell through a third spring.

[0019] Preferably, the second rack is fixedly connected to a first connecting rod; the first connecting rod extends into the housing, and the first connecting rod is fixedly connected to the scraper.

[0020] In this technical solution, the movable bar is subjected to the thrust of the pressure rod and the return force of the third spring, so that the scraper moves along the surface of the filter screen to push the dirt on its surface to both sides to avoid accumulation at the filter screen position.

[0021] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0022] The positive and progressive effects of the present invention are: The above-mentioned pipeline leakage water metering device is applied to relatively important pipelines in outdoor environments; by setting a linear adjustment mechanism and a camera, each position in the length direction of the pipeline can be remotely monitored to detect leakage in time, and then measure through the metering mechanism to judge the severity of the leakage; further, a filtering and blocking mechanism is arranged above the metering mechanism, and the filtering and blocking mechanism has a blocking net and a filter net. The blocking net blocks larger-sized debris, and the filter net filters the leaked water, thereby preventing the debris from entering the metering mechanism; further, a cleaning mechanism is arranged above the blocking net, through which the debris blocked on the blocking net can be cleared, so as to prevent the debris from blocking the blocking net and affecting the leakage of water into the shell, and a tamping seat and a scraper are arranged on the filter net, so as to realize the cleaning of the mesh and the surface of the filter net, so as to prevent the filter net from being blocked and affecting the water from entering the metering mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the structure below the frame of the present invention.

[0025] Figure 3 It is a schematic diagram of the structure of two sides of the first connecting frame of the present invention.

[0026] Figure 4 It is a schematic diagram of the internal structure of the elastic connection mechanism connected to the first guide seat of the present invention.

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of the structure with the A part in the middle enlarged.

[0028] Figure 6 It is a schematic structural diagram of the flow guide tube and one side of the shell of the present invention.

[0029] Figure 7 It is a structural schematic diagram of the tamping seat of the present invention.

[0030] Figure 8 It is a schematic structural diagram of the first connecting rod and the first stop bar of the present invention.

[0031] Fig. 9 It is a schematic diagram of the structure of the cleaning mechanism, movable bar and protection box of the present invention.

[0032] Fig.10 It is a schematic diagram of the structure of the movable bar and the protection box of the present invention.

[0033] Fig.11 It is a schematic diagram of the structure inside the protection box of the present invention.

[0034] Description of Reference Numerals 1. Pipeline; 2. Linear adjustment mechanism; 201. Screw; 202. Guide column; 203. End frame; 204. First motor; 205. Movable seat; 206. Frame; 3. Camera; 4. Elastic connection mechanism; 401. Strip shell; 402. Movable frame; 403. Guide strip; 404. First spring; 5. First connecting frame; 501. First guide seat; 6. Second connecting frame; 7. Filtering and blocking mechanism; 701. Shell; 7011. First strip groove; 702. Blocking net; 703. Guide pipe; 7031. Second strip groove; 704. Filter net; 8. Measuring mechanism; 801. Measuring cylinder; 802. Drain valve; 803. Liquid level meter; 804. Controller; 9. Cleaning mechanism; 901. Second motor; 902. Cleaning rod; 903. Pressure rod; 10. Movable strip; 11. Protection box; 1101, bottom shell; 11011, third strip groove; 1102, corrugated soft sleeve; 1103, plug; 12, first connecting rod; 1201, first stopper; 13, second connecting rod; 1301, second stopper; 14, extrusion convex block; 15, elastic movable rod; 1501, second guide seat; 1502, rod body; 1503, second spring; 16, scraper; 17, tamping seat; 1701, installation Mounting frame; 1702, short column; 18, driving mechanism; 1801, first rack; 1802, rotating shaft; 1803, first cylindrical gear; 1804, first bevel gear; 1805, guide sleeve; 1806, first guide rod; 1807, second bevel gear; 1808, second cylindrical gear; 1809, second rack; 1810, second guide rod; 1811, fixing seat; 1812, third spring. DETAILED DESCRIPTION

[0035] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0036] like Figure 1-Figure 11 As shown, the device for measuring the amount of water leakage in a pipeline includes a pipeline 1; and further includes: A metering mechanism 8, above which a filtering and blocking mechanism 7 is provided; The filtering and blocking mechanism 7 includes a shell 701; the shell 701 is arranged below the pipeline 1, and a blocking net 702 is arranged at the top opening of the shell 701; one side of the shell 701 is connected to the metering mechanism 8 through a guide pipe 703, and a filter net 704 is installed at one end of the guide pipe 703 connected to the shell 701; A movable punching seat 17 is disposed on one side of the filter 704 away from the housing 701, and a movable scraper 16 is disposed on the other side of the filter 704. The punching seat 17 and the scraper 16 are used to clean the mesh of the filter 704 and the side of the filter 704 located in the housing 701, respectively. A cleaning mechanism 9, the cleaning mechanism 9 is used to clean and remove debris above the blocking net 702; The linear adjustment mechanism 2 is used to adjust the position of the metering mechanism 8 in the length direction below the shell 701 ; a camera 3 is installed on the linear adjustment mechanism 2 .

[0037] like Figure 1 As shown, as a specific technical solution, the linear adjustment mechanism 2 includes a guide column 202; both ends of the guide column 202 are fixedly connected with an end frame 203, and the two end frames 203 are respectively fixedly connected to the two sides of the top of the pipeline 1; a screw rod 201 is rotatably installed between the two end frames 203, and a first motor 204 is fixedly installed on one side of the end frame 203, and the output shaft of the first motor 204 is fixedly connected to one end of the screw rod 201, and a movable seat 205 is threadedly connected to the screw rod 201, and a guide hole is provided on the movable seat 205 which is clearance-matched with the guide column 202. The movable seat 205 is the movable part of the linear adjustment mechanism 2, and the screw rod 201 is driven to rotate by the first motor 204, and the screw rod 201 and the movable seat 205 are threadedly screwed, and the guiding effect provided by the guide hole and the guide column 202 is cooperated to make the movable seat 205 move along the length direction of the pipeline 1.

[0038] like Figure 2 As shown, there are two cameras 3, which are respectively installed on both sides of the frame 206, and the lenses of the cameras 3 face the pipeline 1, which are used to monitor and shoot the pipeline 1. Driven by the linear adjustment mechanism 2, the cameras 3 monitor various positions in the length direction of the pipeline 1, and judge the leakage position of the pipeline 1 according to the monitoring picture; then the linear adjustment mechanism 2 drives the metering mechanism 8 to move to the bottom of the leakage point for metering.

[0039] like Figure 3 As shown, as a specific technical solution, the metering mechanism 8 includes a metering cylinder 801; the top of the metering cylinder 801 is fixedly connected to the bottom surface of the housing 701, a liquid level meter 803 is arranged inside the metering cylinder 801, and a drain valve 802 is installed at the bottom of the metering cylinder 801. One side of the metering cylinder 801 is connected to the bottom end of the guide tube 703, and the liquid level meter 803 is connected to a controller 804; and the controller 804 is fixedly installed at the bottom of the housing 701, and a partition is arranged at the installation position of the controller 804 to block it, so that the installation position of the controller 804 is not connected to the metering cylinder 801.

[0040] After the metering mechanism 8 moves to the leaking point, the leaked water is directly collected by the filtering and blocking mechanism 7, the water enters the shell 701 through the blocking net 702, and then is filtered by the filter net 704, and then is introduced into the metering cylinder 801 through the guide tube 703, and the liquid level is measured by the liquid level meter 803.

[0041] In the above, the blocking net 702 is used to block larger debris, such as leaves, from entering the shell 701, and the filter net 704 is provided to filter out smaller debris. Through the above double filtering and interception, the debris is greatly prevented from entering the metering cylinder 801, thereby avoiding affecting the measurement results.

[0042] A timing program is set in the controller 804, and the wireless module is connected at the same time; when the metering mechanism 8 starts metering, the controller 804 starts timing, and the wireless module sends the measured water connection time and liquid level to the staff. Through the data, the staff judges the leakage situation and the severity of the leakage. When there are leakages in multiple pipelines 1, repairs are carried out in sequence according to the severity.

[0043] After metering, the water in the metering cylinder 801 is discharged by opening the drain valve 802 ; the drain valve 802 may be a solenoid valve controlled by the controller 804 .

[0044] like Figure 2 , Figure 3 , Figure 4 as well as Fig. 9 As shown, as a specific technical solution, a frame body 206 is installed on the movable part of the linear adjustment mechanism 2, and an elastic connecting mechanism 4 is installed on both sides of the frame body 206, and the elastic connecting mechanism 4 includes a strip shell 401 fixedly connected to the side wall of the frame body 206; a vertically arranged guide bar 403 is fixedly installed in the strip shell 401, the movable frame 402 is slidably connected to the guide bar 403, and the bottom of the movable frame 402 is elastically connected to the bottom inner wall of the strip shell 401 through a first spring 404; the bottoms of the movable frames 402 of the two elastic connecting mechanisms 4 are respectively fixed with a first connecting frame 5 and a second connecting frame 6; the bottom end of the first connecting frame 5 is fixedly connected to a side wall of the shell 701, and the bottom end of the second connecting frame 6 is connected to a protective box 11, and the protective box 11 is fixedly connected to a side wall of the shell 701.

[0045] like Figure 4 and Figure 5 As shown, as a specific technical solution, the inner wall of the strip shell 401 is vertically fixed with a plurality of equally spaced extrusion protrusions 14, a recess is formed between each pair of adjacent extrusion protrusions 14, and the extrusion protrusions 14 and the recess form a wavy walking surface; the walking surface is abutted with an elastic movable rod 15.

[0046] like Figure 5-Figure 6As shown, as a specific technical solution, the elastic movable rod 15 includes a second guide seat 1501 fixedly connected to the movable frame 402; a through hole is opened on the second guide seat 1501, and the through hole is connected with a rod body 1502 in a clearance fit, one end of the rod body 1502 is provided with a spherical surface, and the spherical end of the rod body 1502 is in contact with the walking surface, and a second spring 1503 is sleeved on the rod body 1502, and the rod body 1502 is elastically connected to the second guide seat 1501 through the second spring 1503; the end of the rod body 1502 away from the walking surface is fixedly connected to the second connecting rod 13, the second connecting rod 13 extends to the inside of the guide pipe 703, and the second connecting rod 13 is connected to the tamping seat 17.

[0047] A first guide seat 501 is fixedly installed at the bottom of the first connecting frame 5, a hole body provided on the first guide seat 501 is loosely connected with the second connecting rod 13, a second strip groove 7031 is provided on the top of the guide tube 703, the second connecting rod 13 passes through the second strip groove 7031 to enter the inside of the guide tube 703; a second baffle 1301 is fixedly installed on the second connecting rod 13, the second baffle 1301 covers the second strip groove 7031 to block it; the length of the second baffle 1301 is greater than the length of the second strip groove 7031, when the second connecting rod 13 moves along the length direction of the second strip groove 7031, the second baffle 1301 always blocks the second strip groove 7031.

[0048] like Figure 7 As shown, as a specific technical solution, the tamping seat 17 includes a mounting frame 1701, which is directly fixed to the second connecting rod 13, and a number of short columns 1702 corresponding to the mesh holes on the filter screen 704 are evenly distributed on the mounting frame 1701; wherein the diameter of the short column 1702 is smaller than the aperture of the mesh hole.

[0049] As the metering mechanism 8 is continuously metering, the water therein continues to increase, thereby the weight continues to increase, causing the mounting frame 1701 to increase its pressure on the first spring 404, so that the compression of the first spring 404 continues to increase, and then the mounting frame 1701 continues to move downward; in the process of the mounting frame 1701 moving downward, guidance is provided by the guide bar 403, and at the same time, the rod body 1502 on the mounting frame 1701 walks on the wavy walking surface, and with the elastic force of the second spring 1503, the rod body 1502 drives the second connecting rod 13 to move left and right, and then the second connecting rod 13 drives the tamping seat 17 to move left and right, so that the short column 1702 is inserted into the mesh on the filter 704 and pulled out of the mesh, which is used to push out the dirt blocked in the mesh, such as sand and gravel blown up in the air by strong wind, into the shell 701, and then block the filter 704.

[0050] When the water in the metering cylinder 801 is discharged, the mounting frame 1701 is moved upward and reset by the elastic force of the first spring 404 in the compressed state, and the rod body 1502 is also moving on the wavy walking surface at this time, thereby cleaning the mesh of the filter screen 704 at this time.

[0051] Through the above design, the filter screen 704 can be automatically cleaned to avoid clogging of the filter screen 704.

[0052] The diameter of the short column 1702 is smaller than the aperture of the mesh, so when the short column 1702 is inserted into the mesh, it will not block the mesh, and the distance between the mesh and the short column 1702 allows water to flow; at the same time, after the short column 1702 is inserted into the mesh, the short column 1702 will not penetrate the mesh and enter the shell 701, thereby preventing the scraper 16 from being blocked by the short column 1702.

[0053] like Figure 3 and Fig. 9 As shown, as a specific technical solution, the cleaning mechanism 9 includes a second motor 901 fixedly mounted to the bottom of the first connecting frame 5; the output shaft end of the second motor 901 is connected to a cleaning rod 902, the bottom surface of the cleaning rod 902 is flush with the top surface of the blocking net 702, and a pressure rod 903 is fixedly connected to the end of the cleaning rod away from the second motor 901.

[0054] The cleaning mechanism 9 is used to clear the debris blocked on the blocking net 702; before the metering mechanism 8 performs metering, and during the metering process, leaves blown by strong winds may fall on the blocking net 702, causing obstruction; the cleaning rod 902 is driven to rotate by the second motor 901, and the cleaning rod 902 passes over the filtering and blocking mechanism 7 to clear the debris on the blocking net 702 to achieve cleaning.

[0055] like Figure 9-10 As shown, as a specific technical solution, a movable bar 10 is arranged above the protective box 11; the movable bar 10 is arc-shaped, and the bottom surface of the movable bar 10 is flush with the horizontal plane, the width of the movable bar 10 gradually decreases from front to back, and the top surface of the movable bar 10 abuts against the bottom end of the pressure rod 903.

[0056] like Fig.11 As shown, as a specific technical solution, the protection box 11 includes a bottom shell 1101; the two sides of the bottom shell 1101 are respectively fixedly connected to the bottom end of the second connecting frame 6 and the side wall of the shell 701, the top port of the bottom shell 1101 is fixedly connected to a corrugated soft cover 1102, and the top port of the corrugated soft cover 1102 is fixedly installed with a plug 1103; the top surface of the plug 1103 is fixedly connected to the bottom surface of the movable bar 10.

[0057] like Fig.11As shown, as a specific technical solution, a driving mechanism 18 is provided in the protection box 11; the driving mechanism 18 includes a first rack 1801; the top end of the first rack 1801 is fixedly connected to the bottom surface of the block 1103, the first rack 1801 is meshedly connected with a first cylindrical gear 1803, and the first cylindrical gear 1803 is fixedly connected with a rotating shaft 1802, the rotating shaft 1802 is rotatably installed in the bottom shell 1101, the first cylindrical gear 1803 is coaxially fixedly connected with a first bevel gear 1804, the first bevel gear 1804 is meshedly connected with a second bevel gear 1807, the second bevel gear 1807 is coaxially fixedly connected with a second cylindrical gear 1808, the second cylindrical gear 1808 is rotatably installed in the bottom shell 1101, the second cylindrical gear 1808 is meshedly connected with a second rack 1809, and the second rack 1809 is elastically connected to the bottom shell 1101 through a third spring 1812.

[0058] A guide sleeve 1805 is fixedly connected to the bottom of the first rack 1801, a vertical first guide rod 1806 is fixedly installed in the bottom shell 1101, the guide sleeve 1805 is slidably connected to the first guide rod 1806, a second guide rod 1810 is fixedly installed on the bottom inner wall of the bottom shell 1101, the second rack 1809 is slidably connected to the second guide rod 1810, a fixed seat 1811 is fixedly installed on the bottom inner wall of the bottom shell 1101, and the third spring 1812 is installed between the fixed seat 1811 and the second rack 1809.

[0059] like Figure 6 , Figure 8 as well as Fig.11 As shown, as a specific technical solution, the second rack 1809 is fixedly connected to the first connecting rod 12 ; the first connecting rod 12 extends into the housing 701 , and the first connecting rod 12 is fixedly connected to the scraper 16 .

[0060] The side wall of the bottom shell 1101 and the side wall of the shell 701 are respectively provided with a third strip groove 11011 and a first strip groove 7011, and the first connecting rod 12 passes through the third strip groove 11011 and the first strip groove 7011, thereby entering the shell 701, and the first connecting rod 12 is fixedly installed with a first stop bar 1201. Figure 8 As shown, the first stop bar 1201 covers the first strip groove 7011 to cover and block the first strip groove 7011; the length of the first stop bar 1201 is greater than the length of the first strip groove 7011, and when the first connecting rod 12 moves along the length direction of the first strip groove 7011, the first stop bar 1201 always blocks the first strip groove 7011.

[0061] When the cleaning mechanism 9 cleans the blocking net 702, the cleaning rod 902 rotates counterclockwise or clockwise by an angle, and while the cleaning of the blocking net 702 is completed, the pressure rod 903 is just moved from one end of the movable bar 10 to the other end.

[0062] When the pressure rod 903 moves from the narrow end to the wider end of the movable bar 10, the movable bar 10 moves downward, and the movable bar 10 drives the first rack 1801 to move downward. The meshing transmission between the first rack 1801 and the first cylindrical gear 1803 causes the rotating shaft 1802 to rotate, and the first bevel gear 1804 on the rotating shaft 1802 rotates together. The meshing transmission between the first bevel gear 1804 and the second bevel gear 1807 causes the second cylindrical gear 1808 to rotate. The second rack 1809 rotates through the meshing transmission of the second cylindrical gear 1808 and the second rack 1809, so that the second rack 1809 drives the first connecting rod 12 to move, and at the same time stretches the third spring 1812. The first connecting rod 12 passes through the surface of the filter screen 704 through the scraper 16 to scrape off dirt on its surface, such as sand and gravel pushed out of the mesh holes of the filter screen 704 by the tamping seat 17. The scraper 16 scrapes the dirt to one side of the filter screen 704 to prevent the dirt from accumulating on the filter screen 704.

[0063] When the pressure rod 903 moves from the wider end of the movable bar 10 to the narrower end, the second rack 1809 is reset and moved by the elastic force of the third spring 1812, and the second bevel gear 1807 rotates with the second cylindrical gear 1808 through the meshing transmission between the second rack 1809 and the second cylindrical gear 1808, and the first cylindrical gear 1803 and the rotating shaft 1802 rotate together through the meshing transmission between the second bevel gear 1807 and the first bevel gear 1804, and the first rack 1801 drives the plug 1103 and the movable bar 10 to reset upward together through the meshing transmission between the first cylindrical gear 1803 and the first rack 1801.

[0064] The protection box 11 protects the driving mechanism 18 , and the corrugated soft cover 1102 above it can be extended and retracted to adapt to the up and down movement of the movable bar 10 , the plug 1103 and the first rack 1801 .

[0065] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A device for measuring the amount of water leakage in a pipeline, comprising a pipeline (1); characterized in that: Also includes: A metering mechanism (8), wherein a filtering and dirt-trapping mechanism (7) is arranged above the metering mechanism (8); The filtering and dirt-blocking mechanism (7) comprises a shell (701); the shell (701) is arranged below the pipeline (1), and a blocking net (702) is arranged at the top opening of the shell (701); one side of the shell (701) is connected to the metering mechanism (8) via a flow guide tube (703), and a filter net (704) is installed at one end of the flow guide tube (703) connected to the shell (701); A movable punching seat (17) is provided on one side of the filter screen (704) away from the housing (701), and a movable scraper (16) is provided on the other side of the filter screen (704); the punching seat (17) and the scraper (16) are used to clean the mesh of the filter screen (704) and one side of the filter screen (704) located inside the housing (701), respectively; A cleaning mechanism (9), the cleaning mechanism (9) being used to clean and remove debris above the blocking net (702); A linear adjustment mechanism (2), the linear adjustment mechanism (2) being used to adjust the position of the metering mechanism (8) in the length direction below the housing (701); a camera (3) is mounted on the linear adjustment mechanism (2).

2. The device for measuring water volume of pipeline leakage according to claim 1, characterized in that: The metering mechanism (8) comprises a metering cylinder (801); the top end of the metering cylinder (801) is fixedly connected to the bottom surface of the housing (701); a liquid level meter (803) is arranged inside the metering cylinder (801); and a liquid discharge valve (802) is installed at the bottom of the metering cylinder (801).

3. The device for measuring water volume of pipeline leakage according to claim 1, characterized in that: A frame (206) is installed on the movable part of the linear adjustment mechanism (2), and an elastic connection mechanism (4) is installed on both sides of the frame (206), and the elastic connection mechanism (4) comprises a strip shell (401) fixedly connected to the side wall of the frame (206) and a movable frame (402); a vertically arranged guide bar (403) is fixedly installed in the strip shell (401), the movable frame (402) is slidably connected to the guide bar (403), and the bottom of the movable frame (402) is elastically connected to the bottom inner wall of the strip shell (401) through a first spring (404); the bottoms of the movable frames (402) of the two elastic connection mechanisms (4) are respectively fixedly connected to a first connection frame (5) and a second connection frame (6); the bottom end of the first connection frame (5) is fixedly connected to a side wall of the shell (701), and the bottom end of the second connection frame (6) is connected to a protection box (11), and the protection box (11) is fixedly connected to a side wall of the shell (701).

4. The device for measuring water volume of pipeline leakage as claimed in claim 3, characterized in that: A plurality of equally spaced extrusion convex blocks (14) are fixedly mounted vertically on the inner wall of the strip shell (401), a recessed portion is formed between each pair of adjacent extrusion convex blocks (14), and the extrusion convex blocks (14) and the recessed portions form a wavy walking surface; the walking surface is abutted against an elastic movable rod (15).

5. The device for measuring water volume of pipeline leakage as claimed in claim 4, characterized in that: The elastic movable rod (15) comprises a second guide seat (1501) fixedly connected to the movable frame (402); a through hole is formed on the second guide seat (1501), a rod body (1502) is connected to the through hole in a clearance fit, a second spring (1503) is sleeved on the rod body (1502), and the rod body (1502) is elastically connected to the second guide seat (1501) via the second spring (1503); a second connecting rod (13) is fixedly connected to one end of the rod body (1502) away from the walking surface, the second connecting rod (13) extends into the interior of the guide pipe (703), and the second connecting rod (13) is connected to the tamping seat (17).

6. The device for measuring water volume of pipeline leakage as claimed in claim 3, characterized in that: The cleaning mechanism (9) comprises a second motor (901) fixedly mounted to the bottom of the first connecting frame (5); a cleaning rod (902) is connected to the output shaft end of the second motor (901); the bottom surface of the cleaning rod (902) is flush with the top surface of the barrier net (702), and a pressure rod (903) is fixedly connected to one end of the cleaning rod away from the second motor (901).

7. The device for measuring water volume of pipeline leakage according to claim 6, characterized in that: A movable bar (10) is arranged above the protection box (11); the movable bar (10) is arc-shaped, and the bottom surface of the movable bar (10) is flush with the horizontal plane; the width of the movable bar (10) gradually decreases from front to back, and the top surface of the movable bar (10) abuts against the bottom end of the pressure rod (903).

8. The device for measuring water volume of pipeline leakage according to claim 7, characterized in that: The protection box (11) comprises a bottom shell (1101); two sides of the bottom shell (1101) are respectively fixedly connected to the bottom end of the second connecting frame (6) and the side wall of the shell (701); a corrugated soft sleeve (1102) is fixedly connected to the top end of the bottom shell (1101); a plug (1103) is fixedly installed on the top end of the corrugated soft sleeve (1102); and a top surface of the plug (1103) is fixedly connected to the bottom surface of the movable bar (10).

9. The device for measuring water volume of pipeline leakage according to claim 8, characterized in that: A driving mechanism (18) is arranged in the protection box (11); the driving mechanism (18) comprises a first rack (1801); the top end of the first rack (1801) is fixedly connected to the bottom surface of the plug (1103); the first rack (1801) is meshedly connected to a first cylindrical gear (1803); the first cylindrical gear (1803) is fixedly connected to a rotating shaft (1802); the rotating shaft (1802) is rotatably mounted in the bottom shell (1101); the first cylindrical gear (1803) is coaxially fixedly connected to the first cylindrical gear (1802); A first bevel gear (1804) is connected, the first bevel gear (1804) is meshedly connected to a second bevel gear (1807), the second bevel gear (1807) is coaxially fixedly connected to a second cylindrical gear (1808), the second cylindrical gear (1808) is rotatably mounted in the bottom shell (1101), the second cylindrical gear (1808) is meshedly connected to a second rack (1809), and the second rack (1809) is elastically connected to the bottom shell (1101) via a third spring (1812).

10. The device for measuring water volume of pipeline leakage according to claim 9, characterized in that: The second rack (1809) is fixedly connected to a first connecting rod (12); the first connecting rod (12) extends into the housing (701), and the first connecting rod (12) is fixedly connected to the scraper (16).

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