An ultrasonic water meter with self-generating function

Abstract

The present invention belongs to the field of ultrasonic water meters, and specifically is an ultrasonic water meter with a self-generating function, comprising a pipeline body; two groups of ultrasonic sensors fixedly connected to the top of the pipeline body; a connecting pipe fixedly connected to the inside of the pipeline body; and a mounting pipe fixedly connected to the inside of the pipeline body. The first bevel gear drives the bevel rack and the mounting rod to make horizontal movements. During the movement of the mounting rod, the connecting rod and the arc scraper are driven to move synchronously. During the movement of the arc scraper, the inner wall of the pipeline is cleaned. Through such an arrangement, the second bevel gear drives the first bevel gear to rotate synchronously, thereby driving the bevel rack to move and driving the arc scraper to clean the scale and bacterial film on the inner wall of the pipeline, thereby avoiding the situation that the speed of the ultrasonic sensor signal changes when passing through the scale or bacterial film, resulting in a decrease in the accuracy of subsequent detection data, thereby ensuring the detection effect of the ultrasonic water meter.

Description

Technical Field

[0001] The invention belongs to the field of ultrasonic water meters, in particular to an ultrasonic water meter with a self-generating function. Background Art

[0002] Ultrasonic water meter is a new type of water meter that detects the time difference caused by the change in speed when the ultrasonic sound beam propagates downstream and upstream in water, analyzes and processes the water flow rate, and further calculates the water flow rate. It has the characteristics of low starting flow rate, wide range ratio, high measurement accuracy and stable operation, and is widely used in daily life.

[0003] When the ultrasonic smart water meter is in use, a signal is sent out through one group of ultrasonic sensors. When the signal moves, it will first pass through the fluid, bounce back after contacting the inner wall of the other side of the pipe, and then be received by another group of ultrasonic sensors for measurement. For example, a Chinese patent with publication number CN111006730A discloses a vertical self-generating ultrasonic smart water meter, including a pipe section, a meter body arranged on the pipe section, the front and rear ends of the bottom of the meter body are respectively provided with an inlet end transducer and an outlet end transducer, a circuit board and a battery are arranged in the meter body, and also includes a hydroelectric generator, the body of the hydroelectric generator is arranged in the meter body, and the impeller of the hydroelectric generator is arranged in the pipe section and is placed on the rear side of the outlet end transducer; the body includes a shell and a rotor shaft extending out of the shell, the rotor shaft is vertically inserted into the pipe section and connected to the impeller; the power output terminal of the body of the hydroelectric generator is connected to the battery via the circuit board, and the battery is a rechargeable battery; the circuit board includes at least a charging circuit for charging the rechargeable battery; and also includes a processing module and a communication module arranged in the meter body. The smart water meter is energy-saving and environmentally friendly, convenient and practical, and avoids environmental pollution caused by constant replacement of batteries. In addition, the ultrasonic smart water meter can be remotely controlled by connecting with other communication devices.

[0004] In the prior art, after a pipeline has been used for a long time, scale and bacterial film will form on its inner wall. Since the movement speed of ultrasonic signals in solids and fluids is different, and common ultrasonic water meters are unable to clean the scale and bacterial film on the inner wall of the pipeline during use, the signal movement speed of the ultrasonic sensor will change, thereby affecting the accuracy of the detection data.

[0005] To this end, the present invention provides an ultrasonic water meter with a self-generating function. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: an ultrasonic water meter with a self-generating function described in the present invention comprises:

[0008] Pipeline body;

[0009] Two sets of ultrasonic sensors fixedly connected to the top of the pipe body;

[0010] A connecting pipe fixedly connected to the inside of the pipeline body;

[0011] A mounting pipe fixedly connected to the inside of the pipeline body, used for mounting the connecting ring;

[0012] A mounting groove is provided inside the pipe body for connecting the mounting block;

[0013] The cam is connected to the first gear and the second gear is connected to the first gear by a toothed connection, and the toothed connection of the toothed connection is connected to the toothed connection of the toothed connection.

[0014] Preferably, the pipe body is provided with a circular hole at the top of the mounting tube, the circular hole is arranged through the mounting tube, a pressure rod is fixedly connected to the top of the connecting block, the circular hole is arranged through the connecting tube, a pressure block is fixedly connected to the top of the pressure rod, the pressure block is located outside the pipe body, a second spring is fixedly connected to the outer wall of the mounting block on one side close to the arc scraper, and the second spring is fixedly connected to the inner wall of the mounting groove at one end away from the mounting block.

[0015] Preferably, two groups of limit grooves are provided inside the pipe body and in the installation groove, the two groups of limit grooves are symmetrically arranged relative to the installation block, the outer wall of the installation block is fixedly connected with two groups of limit blocks, the limit blocks correspond to the limit grooves one by one, and the limit blocks are slidably installed in the limit grooves.

[0016] Preferably, a first spring is fixedly connected to the inner wall of the top of the mounting tube, the first spring is sleeved outside the pressure rod, and the bottom of the first spring is fixedly connected to the upper surface of the connecting block.

[0017] Preferably, the outer wall of the mounting tube is provided with two groups of slide grooves, which are symmetrically arranged relative to the connecting block. The outer wall of the connecting block is fixedly connected with two groups of sliders, which are slidably installed in the slide grooves, and the sliders are adapted to the size of the slide grooves.

[0018] Preferably, the outer wall of the first bevel gear is provided with a plurality of first through holes, the outer wall of the second bevel gear is provided with a plurality of second through holes, and a positioning rod is fixedly connected in the pipe body and on a side of the mounting rod close to the second spring.

[0019] Preferably, a bearing is fixedly connected inside the connecting pipe, and the rotating shaft is fixedly connected to the inner wall of the bearing.

[0020] Preferably, an installation bin is fixedly connected to the top of the connecting tube, an electric motor is fixedly connected inside the installation bin, a battery is fixedly connected inside the installation bin, the motor is fixedly connected to the rotating shaft, the motor and the battery are electrically connected through a wire, and the battery and two groups of ultrasonic sensors are electrically connected through transmission lines respectively.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. An ultrasonic water meter with a self-generating function described in the present invention drives the bevel rack and the mounting rod to make horizontal movements through the first bevel gear. During the movement of the mounting rod, the connecting rod and the arc scraper will be driven to move synchronously. During the movement of the arc scraper, the inner wall of the pipe will be cleaned. Through such an arrangement, the second bevel gear will drive the first bevel gear to rotate synchronously, thereby driving the bevel rack to move and driving the arc scraper to clean the scale and bacterial film on the inner wall of the pipe, thereby avoiding the change in speed of the ultrasonic sensor signal when passing through the scale or bacterial film, resulting in a decrease in the accuracy of subsequent detection data, thereby ensuring the detection effect of the ultrasonic water meter.

[0023] 2. The ultrasonic water meter with self-generating function described in the present invention, during the movement of the connecting block, will drive the connecting ring and the second bevel gear to move upward synchronously, and separate the second bevel gear from the first bevel gear. At this time, the second bevel gear is no longer separated from the first bevel gear, and because the bevel rack is tightly fitted with the first bevel gear under the action of the elastic restoring force of the second spring itself, and moves to one side of the connecting ring under the action of the elastic restoring force of the second spring, it drives the arc scraper to reset, and makes the bevel rack mesh with the first bevel gear again, which is convenient for subsequent reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a front view of the present invention;

[0026] Figure 2 is a cross-sectional view of the pipeline body in the present invention;

[0027] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0028] Figure 4 is a planar cross-sectional view of the pipeline body in the present invention;

[0029] Figure 5 is a cross-sectional view of the present invention;

[0030] Figure 6 is a cross-sectional view of the pipeline body in the present invention;

[0031] Figure 7 is a planar cross-sectional view of the pipeline body in the present invention;

[0032] Figure 8 yes Figure 7 A partial enlarged view of point B in the middle.

[0033] In the figure: 1. pipeline body; 2. ultrasonic sensor; 3. mounting chamber; 31. motor; 32. battery; 4. connecting pipe; 5. bearing; 6. rotating shaft; 7. first bevel gear; 71. first through hole; 8. mounting pipe; 81. first spring; 82. connecting block; 83. pressure rod; 84. pressure block; 9. slide groove; 10. slider; 11. connecting ring; 12. fixing rod; 13. rotating shaft; 14. blade; 15. second bevel gear; 151. second through hole; 16. mounting groove; 17. mounting block; 18. mounting rod; 181. connecting rod; 182. arc scraper; 19. bevel rack; 20. second spring; 21. limit groove; 22. limit block; 23. positioning rod. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] like Figures 1 to 8 As shown, an ultrasonic water meter with a self-generating function according to an embodiment of the present invention comprises:

[0036] Pipeline body 1;

[0037] Two sets of ultrasonic sensors 2 are fixedly connected to the top of the pipeline body 1;

[0038] A connecting pipe 4 fixedly connected to the inside of the pipeline body 1;

[0039] A mounting pipe 8 fixedly connected to the inside of the pipeline body 1, used for mounting a connecting ring 11;

[0040] A mounting groove 16 is provided inside the pipe body 1 and is used to connect a mounting block 17;

[0041] The connecting tube 4 is rotatably connected with a rotating shaft 6, the bottom of the rotating shaft 6 is fixedly connected with a first bevel gear 7, the mounting tube 8 is slidably connected with a connecting block 82, the bottom of the connecting block 82 is fixedly connected with a connecting ring 11, a fixing rod 12 is fixedly connected in the connecting ring 11, a rotating shaft 13 is rotatably connected at the center of the fixing rod 12, a plurality of groups of blades 14 are fixedly connected to the outer wall of one end of the rotating shaft 13 away from the first bevel gear 7, a second bevel gear 15 is fixedly connected to the end of the rotating shaft 13 close to the first bevel gear 7, and the second bevel gear 15 is rotatably connected to the first bevel gear 7. A helical gear 7 is meshed and connected, a mounting block 17 is slidably connected in the mounting groove 16, a mounting rod 18 is fixedly connected to the outer wall of one side of the mounting block 17 close to the first helical gear 7, an end of the mounting rod 18 close to the first helical gear 7 is fixedly connected to a helical rack 19, the helical rack 19 is meshed and connected with the first helical gear 7, an end of the mounting rod 18 close to the connecting ring 11 is fixedly connected to a connecting rod 181, an end of the connecting rod 181 away from the mounting rod 18 is fixedly connected to an arc scraper 182, and the arc scraper 182 is in contact with the inner wall of the pipeline body 1;

[0042] When the pipeline body 1 provided by the present invention is used, the external controller is first turned on, and the fluid will enter the pipeline body 1. During the movement of the fluid, the fluid will pass through the connecting ring 11. Under the impact of the fluid, the plurality of blades 14 and the rotating shaft 13 will be driven to rotate. During the rotation of the blades 14, the second bevel gear 15 at the end of the rotating shaft 13 will be driven. Since the second bevel gear 15 is in meshing state with the first bevel gear 7, the second bevel gear 15 will drive the first bevel gear 7 to rotate synchronously when rotating. Moreover, since the bevel rack 19 is also in meshing state with the first bevel gear 7, the first bevel gear 7 will drive the bevel rack 19 to do horizontal rotation during the rotation. Movement, thereby driving the installation rod 18 to move to the side away from the connecting ring 11. During the movement of the installation rod 18, the connecting rod 181 and the arc scraper 182 will be driven to move synchronously. During the movement of the arc scraper 182, the inner wall of the pipe will be cleaned. Through such a setting, the second bevel gear 15 will drive the first bevel gear 7 to rotate synchronously, thereby driving the bevel rack 19 to move, and driving the arc scraper 182 to clean the scale and bacterial film on the inner wall of the pipe, so as to avoid the speed change of the signal of the ultrasonic sensor 2 when passing through the scale or bacterial film, resulting in a decrease in the accuracy of the subsequent detection data, thereby ensuring the detection effect of the ultrasonic water meter;

[0043] It should be noted that the first bevel gear 7 will drive the bevel rack 19 to move during the rotation. When the tooth block of the bevel rack 19 is completely separated from the first bevel gear 7, the first bevel gear 7 will no longer drive the bevel rack 19, causing the arc scraper 182 to stop moving, thereby facilitating the subsequent use of the scraper.

[0044] like Figures 2 to 4 As shown, the pipe body 1 is provided with a circular hole at the top of the mounting tube 8, the circular hole is set to penetrate into the mounting tube 8, the top of the connecting block 82 is fixedly connected with a pressure rod 83, the through circular hole is set, the top of the pressure rod 83 is fixedly connected with a pressure block 84, the pressure block 84 is located outside the pipe body 1, the outer wall of one side of the mounting block 17 close to the arc scraper 182 is fixedly connected with a second spring 20, and the end of the second spring 20 away from the mounting block 17 is fixedly connected to the inner wall of the mounting groove 16;

[0045] The second spring 20 provided by the present invention is in a compressed state in the initial state. Since the helical rack 19 drives the mounting block 17 to move in the mounting groove 16 during the movement, and the mounting block 17 stretches the second spring 20 during the movement, when the fluid in the pipeline body 1 is not needed, the fluid no longer moves, so the blade 14 stops rotating, thereby driving the first helical gear 7 and the second helical gear 15 to stop rotating. After that, the staff needs to move the pressing block 84 upward, thereby driving the pressing rod 83 and the connecting block 82 to move upward synchronously, and the connecting block 8 During the movement, the connecting ring 11 and the second bevel gear 15 will be driven to move upward synchronously, and the second bevel gear 15 will be separated from the first bevel gear 7. At this time, the second bevel gear 15 will no longer be separated from the first bevel gear 7, and because the bevel rack 19 is tightly fitted with the first bevel gear 7 under the elastic restoring force of the second spring 20, and moves to one side of the connecting ring 11 under the elastic restoring force of the second spring 20, the arc scraper 182 will be driven to reset, and the bevel rack 19 will mesh with the first bevel gear 7 again, which is convenient for subsequent reuse;

[0046] like Figures 7 and 8 As shown, two groups of limiting grooves 21 are provided inside the pipe body 1 and inside the installation groove 16. The two groups of limiting grooves 21 are symmetrically arranged relative to the installation block 17. Two groups of limiting blocks 22 are fixedly connected to the outer wall of the installation block 17. The limiting blocks 22 correspond to the limiting grooves 21 one by one, and the limiting blocks 22 are slidably installed in the limiting grooves 21.

[0047] When the limit block 22 provided by the present invention is in use, the mounting block 17 will drive the limit block 22 to move in the limit groove 21 during the movement. The limit block 22 can limit the mounting block 17 during the movement, thereby preventing the mounting block 17 and the mounting rod 18 from tilting due to excessive friction between the mounting block 17 and the mounting groove 16 when the bevel rack 19 drives the mounting block 17 to move during the movement, thereby preventing the mounting block 17 and the mounting rod 18 from tilting and causing the bevel rack 19 to shift in position, thereby ensuring that the bevel rack 19 has a stable meshing effect with the first bevel gear 7, thereby ensuring subsequent normal use.

[0048] like Figures 2 to 3 As shown, a first spring 81 is fixedly connected to the inner wall of the top of the mounting tube 8, the first spring 81 is sleeved outside the pressure rod 83, and the bottom of the first spring 81 is fixedly connected to the upper surface of the connecting block 82;

[0049] When the first spring 81 provided by the present invention is in use, the connecting block 82 will compress the first spring 81 during the upward movement. When the arc scraper 182 is reset, the staff can release the pressure block 84. At this time, the connecting block 82 will be reset under the action of the elastic restoring force of the first spring 81, thereby driving the second bevel gear 15 to contact the upper surface of the tooth block of the first bevel gear 7, and at this time, the second bevel gear 15 will be tightly fitted with the upper surface of the tooth block of the first bevel gear 7 under the action of the elastic force of the first spring 81. When it is needed later, the fluid re-enters the interior of the pipeline body 1 and drives the blade 14 to rotate. When the blade 14 rotates, it drives the second bevel gear 15 to rotate. When the tooth block of the second bevel gear 15 moves to coincide with the tooth gap of the first bevel gear 7, the second bevel gear 15 will move downward under the action of the elastic force of the first spring 81, so that the second bevel gear 15 is re-engaged with the first bevel gear 7, which is convenient for subsequent use.

[0050] like Figures 2 to 3 As shown, the outer wall of the mounting tube 8 is provided with two groups of slide grooves 9, the two groups of slide grooves 9 are symmetrically arranged relative to the connecting block 82, the outer wall of the connecting block 82 is fixedly connected with two groups of sliders 10, the sliders 10 are slidably installed in the slide grooves 9, and the sliders 10 are adapted to the slide grooves 9 in size;

[0051] When the slider 10 provided by the present invention is in use, since the connecting block 82 will drive the slider 10 to move in the slide groove 9 when it moves, the slider 10 can limit the connecting block 82 to prevent the fluid from colliding with the connecting ring 11 when the fluid moves inside the pipeline body 1, causing the connecting ring 11 to rotate and causing the position of the second bevel gear 15 to be skewed, thereby avoiding affecting the normal use of the subsequent first gear.

[0052] like Figures 5 and 6As shown, the outer wall of the first bevel gear 7 is provided with a plurality of first through holes 71, the outer wall of the second bevel gear 15 is provided with a plurality of second through holes 151, and a positioning rod 23 is fixedly connected to the pipe body 1 and located on the side of the mounting rod 18 close to the second spring 20;

[0053] When in use, the positioning rod 23 provided by the present invention can position the position of the bevel rack 19, thereby preventing the bevel rack 19 from moving too far when it is reset under the action of the second spring 20, resulting in the separation of the bevel rack 19 from the first bevel gear 7, thereby ensuring that the first bevel gear 7 can have a good meshing environment with the bevel rack 19. The first through hole 71 and the second through hole 151 reduce the surface area of ​​the first bevel gear 7 and the second bevel gear 15, thereby reducing the impact force on the first bevel gear 7 and the second bevel gear 15 and improving the service life.

[0054] like Figures 1 to 3 As shown, a bearing 5 is fixedly connected inside the connecting pipe 4, and the rotating shaft 6 is fixedly connected to the inner wall of the bearing 5;

[0055] When the bearing 5 provided by the present invention is in use, since the outer wall of the bearing 5 is fixedly connected to the inner wall of the connecting tube 4, the bearing 5 is in a horizontal state, and the rotating shaft 6 fixedly connected to the inside of the bearing 5 is in a vertical state with the bearing 5, and the first bevel gear 7 fixedly connected to the bottom of the rotating shaft 6 is in a parallel state with the bearing 5, thereby limiting the position of the first bevel gear 7 and ensuring that the first bevel gear 7 has a good meshing effect with the second bevel gear 15 and the bevel rack 19.

[0056] like Figure 1 to Figure 2 As shown, the top of the connecting pipe 4 is fixedly connected to a mounting chamber 3, a motor 31 is fixedly connected inside the mounting chamber 3, a battery 32 is fixedly connected inside the mounting chamber 3, the motor 31 is fixedly connected to the rotating shaft 6, the motor 31 and the battery 32 are electrically connected through a wire, and the battery 32 and the two groups of ultrasonic sensors 2 are electrically connected through transmission lines respectively;

[0057] When the motor 31 provided by the present invention is in use, the fluid will drive the blades 14 and the rotating shaft 13 to rotate during the movement, thereby driving the second bevel gear 15 to drive the first bevel gear 7 to rotate. When the first bevel gear 7 rotates, it will drive the rotating shaft 6 to rotate. At this time, the motor 31 can convert the force brought by the rotation of the rotating shaft 6 into electrical energy, and transmit it to the battery 32 through a wire for storage, thereby realizing the self-generation function. The electrical energy in the battery 32 can provide electrical energy for the ultrasonic sensor 2 to ensure the normal use of the ultrasonic water meter.

[0058] Working principle: In order to prevent the scale and bacterial film on the inner wall of the pipe body 1 from affecting the moving speed of the electrical signal of the ultrasonic sensor 2, when working, first turn on the external controller, then the fluid will enter the pipe body 1, and the fluid will pass through the connecting ring 11 during the movement, and under the impact of the fluid, it will drive multiple sets of blades 14 and the rotating shaft 13 to rotate, and the blades 14 will drive the second bevel gear 15 at the end of the rotating shaft 13 during the rotation, and since the second bevel gear 15 is in a meshing state with the first bevel gear 7, the second bevel gear 15 will drive the first bevel gear 7 to rotate synchronously when rotating, and since the bevel rack 19 is also in a meshing state with the first bevel gear 7, the first bevel gear 7 will drive the bevel rack 19 to move horizontally during the rotation, thereby driving the mounting rod 18 to move to the side away from the connecting ring 11, and the mounting rod 18 will drive the connecting ring 11 during the movement. The connecting rod 181 and the arc scraper 182 move synchronously. The arc scraper 182 cleans the inner wall of the pipe during the movement. By such a configuration, the second bevel gear 15 drives the first bevel gear 7 to rotate synchronously, thereby driving the bevel rack 19 to move and driving the arc scraper 182 to clean the scale and bacterial film on the inner wall of the pipe, so as to avoid the change in speed of the signal of the ultrasonic sensor 2 when passing through the scale or bacterial film, resulting in a decrease in the accuracy of subsequent detection data, thereby ensuring the detection effect of the ultrasonic water meter, and the first bevel gear 7 drives the rotating shaft 6 to rotate when rotating. At this time, the motor 31 can convert the force brought by the rotation of the rotating shaft 6 into electrical energy, and transmit it to the battery 32 for storage through the wire, thereby realizing the self-generation function. The electrical energy in the battery 32 can provide electrical energy for the ultrasonic sensor 2, ensuring the normal use of the ultrasonic water meter;

[0059] When the fluid in the pipeline body 1 is not needed, the fluid no longer moves, so the blade 14 will stop rotating, thereby driving the first bevel gear 7 and the second bevel gear 15 to stop rotating. Then the staff needs to move the pressure block 84 upward, thereby driving the pressure rod 83 and the connecting block 82 to move upward synchronously. During the movement, the connecting block 82 will drive the connecting ring 11 and the second bevel gear 15 to move upward synchronously, and separate the second bevel gear 15 from the first bevel gear 7. At this time, the second bevel gear 15 is no longer separated from the first bevel gear 7, and because the bevel rack 19 is tightly fitted with the first bevel gear 7 under the action of the elastic restoring force of the second spring 20, and moves to one side of the connecting ring 11 under the action of the elastic restoring force of the second spring 20, the arc scraper 182 is reset, and the bevel rack 19 will mesh with the first bevel gear 7 again, which is convenient for subsequent reuse;

[0060] When the arc scraper 182 is reset, the staff can release the pressure block 84. At this time, the connecting block 82 will be reset under the action of the elastic restoring force of the first spring 81, thereby driving the second bevel gear 15 to contact the upper surface of the tooth block of the first bevel gear 7, and at this time, the second bevel gear 15 will be tightly fitted with the upper surface of the tooth block of the first bevel gear 7 under the action of the elastic force of the first spring 81. When it is needed later, the fluid re-enters the interior of the pipeline body 1 and drives the blade 14 to rotate. When the blade 14 rotates, it will drive the second bevel gear 15 to rotate. When the tooth block of the second bevel gear 15 moves to coincide with the tooth gap of the first bevel gear 7, the second bevel gear 15 will move downward under the action of the elastic force of the first spring 81, so that the second bevel gear 15 is re-engaged with the first bevel gear 7, which is convenient for subsequent use.

[0061] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An ultrasonic water meter with self-generating function, comprising: Pipe body (1); Two sets of ultrasonic sensors (2) fixedly connected to the top of the pipeline body (1); A connecting pipe (4) fixedly connected to the interior of the pipeline body (1); A mounting tube (8) fixedly connected to the interior of the pipeline body (1) and used for mounting a connecting ring (11); A mounting groove (16) provided inside the pipe body (1) and used for connecting a mounting block (17); The invention is characterized in that a rotating shaft (6) is rotatably connected inside the connecting tube (4), a first bevel gear (7) is fixedly connected to the bottom of the rotating shaft (6), a connecting block (82) is slidably connected inside the mounting tube (8), a connecting ring (11) is fixedly connected to the bottom of the connecting block (82), a fixing rod (12) is fixedly connected inside the connecting ring (11), a rotating shaft (13) is rotatably connected at the center of the fixing rod (12), a plurality of groups of blades (14) are fixedly connected to the outer wall of one end of the rotating shaft (13) away from the first bevel gear (7), a second bevel gear (15) is fixedly connected to the end of the rotating shaft (13) close to the first bevel gear (7), and the second bevel gear (15) is fixedly connected to the outer wall of the rotating shaft (13) away from the first bevel gear (7). ) is meshingly connected with the first bevel gear (7), a mounting block (17) is slidably connected in the mounting groove (16), a mounting rod (18) is fixedly connected to the outer wall of one side of the mounting block (17) close to the first bevel gear (7), an end of the mounting rod (18) close to the first bevel gear (7) is fixedly connected to a bevel rack (19), the bevel rack (19) is meshingly connected to the first bevel gear (7), an end of the mounting rod (18) close to the connecting ring (11) is fixedly connected to a connecting rod (181), an end of the connecting rod (181) away from the mounting rod (18) is fixedly connected to an arc scraper (182), and the arc scraper (182) is in contact with the inner wall of the pipeline body (1).

2. The ultrasonic water meter with self-generating function according to claim 1, characterized in that: The pipe body (1) is provided with a circular hole at the top of the mounting tube (8), the circular hole being arranged to penetrate into the mounting tube (8), the top of the connecting block (82) being fixedly connected to a pressure rod (83), the top of the pressure rod (83) being fixedly connected to a pressure block (84), the pressure block (84) being located outside the pipe body (1), the outer wall of the mounting block (17) close to the arc-shaped scraper (182) being fixedly connected to a second spring (20), the end of the second spring (20) being away from the mounting block (17) being fixedly connected to the inner wall of the mounting groove (16).

3. The ultrasonic water meter with self-generating function according to claim 2, characterized in that: Two groups of limit grooves (21) are provided inside the pipe body (1) and inside the installation groove (16). The two groups of limit grooves (21) are symmetrically arranged relative to the installation block (17). Two groups of limit blocks (22) are fixedly connected to the outer wall of the installation block (17). The limit blocks (22) correspond to the limit grooves (21) one by one, and the limit blocks (22) are slidably installed in the limit grooves (21).

4. The ultrasonic water meter with self-generating function according to claim 3, characterized in that: A first spring (81) is fixedly connected to the inner wall of the top of the mounting tube (8); the first spring (81) is sleeved outside the pressure rod (83); and the bottom of the first spring (81) is fixedly connected to the upper surface of the connecting block (82).

5. The ultrasonic water meter with self-generating function according to claim 4, characterized in that: The outer wall of the mounting tube (8) is provided with two groups of slide grooves (9), the two groups of slide grooves (9) are symmetrically arranged relative to the connecting block (82), the outer wall of the connecting block (82) is fixedly connected with two groups of sliders (10), the sliders (10) are slidably installed in the slide grooves (9), and the sizes of the sliders (10) and the slide grooves (9) are adapted to each other.

6. The ultrasonic water meter with self-generating function according to claim 5, characterized in that: The outer wall of the first bevel gear (7) is provided with a plurality of first through holes (71), the outer wall of the second bevel gear (15) is provided with a plurality of second through holes (151), and a positioning rod (23) is fixedly connected to the pipe body (1) and located on a side of the mounting rod (18) close to the second spring (20).

7. The ultrasonic water meter with self-generating function according to claim 6, characterized in that: A bearing (5) is fixedly connected inside the connecting pipe (4), and the rotating shaft (6) is fixedly connected to the inner wall of the bearing (5).

8. The ultrasonic water meter with self-generating function according to claim 7, characterized in that: The top of the connecting tube (4) is fixedly connected to a mounting chamber (3), a motor (31) is fixedly connected inside the mounting chamber (3), a storage battery (32) is fixedly connected inside the mounting chamber (3), the motor (31) is fixedly connected to the rotating shaft (6), the motor (31) and the storage battery (32) are electrically connected via a wire, and the storage battery (32) and the two sets of ultrasonic sensors (2) are electrically connected via transmission lines.

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