Water flow sensor

Abstract

The utility model relates to the technical field of water conservancy detection, and discloses a water flow sensor which comprises a flow velocity detection pipe, a plurality of rectangular sealing plugs arranged at equal intervals are fixedly embedded in the outer surface of the flow velocity detection pipe, and a moving block is slidably inserted into each rectangular sealing plug. And an adjusting shaft is rotationally connected to the interior of each moving block, an impacted sheet is rotationally connected to the right end of each adjusting shaft, two limiting rods are inserted into the upper surface and the bottom of each impacted sheet, and the same expansion sheet is fixedly connected to one ends of every two adjacent limiting rods. According to the water flow sensor, through the arrangement of the adjusting shaft, the cam can be driven to rotate, so that the two expansion sheets are squeezed to be far away from each other, the effect of changing the stress area of the impact sheet is achieved, the overall flexibility is effectively improved, the tedious process of personnel disassembly and replacement is avoided, and the water flow sensor is convenient to use through the worm and the worm gear. And the stability of the expansion sheet after adjustment is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of water conservancy detection technology, and specifically to a water flow sensor. Background Art

[0002] Sensors are detection devices that can sense the information being measured and transform the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. Since humans entered the era of electrification, the application of sensors has become increasingly common. Sensors have the characteristics of miniaturization, digitization, intelligence, multi-function, systematization and networking, and are the primary link in realizing automatic detection and automatic control.

[0003] The existing patent (publication number: CN219417504U) discloses a water flow sensor, including an electric control box, which is electrically connected to a flow rate detection tube through a protection circuit; the electric control box includes a microprocessor, a display screen is electrically connected to the top of the front of the microprocessor, a zeroing button electrically connected to the microprocessor is arranged in an operation area arranged below the display screen, a working indicator light is arranged above the zeroing button, the working indicator light is electrically connected to the microprocessor, a cross-sectional area input keyboard is electrically connected to the side of the zeroing button, and a switch button is arranged below the cross-sectional area input keyboard. This water flow sensor can replace the impacted piece at any time according to needs, thereby changing the area of ​​the impacted piece, and using the impact force of the water flow to convert the water flow rate into pressure, thereby measuring water flow rate information of different precisions, and has the advantages of high flexibility, simple operation, easy use and wide application range.

[0004] However, during the use of the above-mentioned water flow sensor, the impact plate can be replaced at any time according to needs, thereby changing the area of ​​the impact plate. However, during the replacement process, technicians are often required to go close to the water's edge, take the sensor out of the water as a whole, and then disassemble and replace the impact plate on the sensor, which is rather cumbersome. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present application provides a water flow sensor having advantages such as easy adjustment, which solves the problem that the sensor often needs to be disassembled during replacement, making it cumbersome to use.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a water flow sensor, comprising a flow velocity detection tube, the outer surface of which is fixedly inlaid with a plurality of rectangular sealing plugs arranged at equal distances, each of which is slidably inserted with a moving block inside, each of which is rotatably connected with an adjusting shaft inside, and the right end of each of which is rotatably connected with an impact piece;

[0007] Two limiting rods are inserted into the upper surface and the bottom of each impact-bearing piece, and one end of each two adjacent limiting rods is fixedly connected to the same expansion piece.

[0008] Through the above scheme, the cam can be driven to rotate by the setting adjustment shaft, thereby squeezing the two expansion plates away from each other, thereby achieving the effect of changing the force area of ​​the impacted plate, effectively improving the overall flexibility, and avoiding the tedious process of disassembly and replacement by personnel. The worm and worm wheel can be used to utilize their self-locking properties to effectively improve the stability of the expansion plate after adjustment.

[0009] Furthermore, the left side surface of each impact-receiving piece is fixedly connected to two fixing ribs, and the other end of each fixing rib is fixedly connected to the moving block adjacent thereto.

[0010] Through the above solution and the provision of the fixing ribs, it is possible to avoid the impact piece from rotating when the adjusting shaft is rotating.

[0011] Furthermore, the outer surface of each adjusting shaft is fixedly connected with a cam, and each expansion piece is in contact with the cam adjacent thereto.

[0012] Through the above solution, the expansion piece can be squeezed to move by setting the cam.

[0013] Furthermore, a pressure frame is provided inside the flow velocity detection tube, and each of the adjustment shafts is rotatably connected to the pressure frame.

[0014] Through the above solution, the movement of the adjusting shaft can drive the moving block and the pressure frame to move, so that the pressure frame applies pressure to the pressure sensor.

[0015] Furthermore, a fixing block is installed on the inner wall of the flow velocity detection tube, and a pressure sensor is installed inside the fixing block.

[0016] Through the above solution, by setting the pressure sensor, the pressure generated by the movement of the pressure frame can be monitored.

[0017] Furthermore, a worm gear is fixedly connected to the left end of each adjusting shaft, a worm is rotatably connected between the inner top wall and the inner bottom wall of the pressure frame, and each worm gear is meshingly connected to the worm.

[0018] Through the above scheme, by setting the worm and the worm wheel, the self-locking purpose of the expansion piece can be achieved.

[0019] Furthermore, two reset rods are inserted between every two adjacent expansion pieces, two springs are installed between every two adjacent expansion pieces, and each spring is sleeved with the reset rod adjacent to it.

[0020] Through the above solution and the provision of the spring, the purpose of resetting the expansion piece can be achieved.

[0021] Furthermore, the top end of the worm is fixedly connected to a transmission gear, the upper surface of the pressure frame is rotatably connected to a power shaft, the outer surface of the power shaft is fixedly connected to a power gear, the power gear is meshingly connected to the transmission gear, the upper surface of the pressure frame is fixedly connected to two L-shaped ribs, a micro motor is installed between the two L-shaped ribs, and the output end of the micro motor is fixedly connected to the power shaft.

[0022] Through the above solution, by setting the micro motor, it is possible to provide power for the rotation of the power shaft.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This water flow sensor can drive the cam to rotate through the set adjustment shaft, thereby squeezing the two expansion plates away from each other, thereby achieving the effect of changing the force-bearing area of ​​the impacted plate, effectively improving the overall flexibility, and avoiding the tedious process of disassembly and replacement by personnel. The worm and worm wheel are set, and their self-locking properties can be utilized to effectively improve the stability of the expansion plate after adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the front view of the overall structure of this application;

[0026] Figure 2 A cross-sectional view of the front view of the overall structure of this application;

[0027] Figure 3 It is a cross-sectional view of the right side view of the overall structure of this application;

[0028] Figure 4 This is a schematic diagram of the structure of the impact plate of this application.

[0029] In the figure:

[0030] 1. Flow rate detection tube; 2. Rectangular sealing plug; 3. Moving block; 4. Adjusting shaft; 5. Impact plate; 6. Limit rod; 7. Expansion plate; 8. Fixed rib; 9. Cam; 10. Pressure frame; 11. Fixed block; 12. Pressure sensor; 13. Worm gear; 14. Worm; 15. Reset rod; 16. Spring; 17. Transmission gear; 18. Power shaft; 19. Power gear; 20. L-shaped rib; 21. Micro motor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 , Figure 2 and Figure 3 A water flow sensor in this embodiment includes a flow velocity detection tube 1, the outer surface of the flow velocity detection tube 1 is fixedly inlaid with a plurality of rectangular sealing plugs 2 arranged at equal distances, a moving block 3 is slidably inserted inside each rectangular sealing plug 2, and an adjusting shaft 4 is rotatably connected inside each moving block 3. A pressure frame 10 is provided inside the flow velocity detection tube 1, and each adjusting shaft 4 is rotatably connected to the pressure frame 10. By moving the adjusting shaft 4, the moving block 3 and the pressure frame 10 can be driven to move, so that the pressure frame 10 applies pressure to the pressure sensor 12.

[0033] See also Figure 1 , Figure 2 and Figure 3 A fixing block 11 is installed on the inner wall of the flow rate detection tube 1, and a pressure sensor 12 is installed inside the fixing block 11. Through the setting of the pressure sensor 12, the pressure generated by the movement of the pressure frame 10 can be monitored.

[0034] See also Figure 2 , Figure 3 and Figure 4 The right end of each adjusting shaft 4 is rotatably connected to an impact piece 5, and the left side of each impact piece 5 is fixedly connected to two fixing ribs 8, and the other end of each fixing rib 8 is fixedly connected to the moving block 3 close to it. By setting the fixing ribs 8, the impact piece 5 can be prevented from self-rotating during the rotation of the adjusting shaft 4. The left end of each adjusting shaft 4 is fixedly connected to a worm gear 13, and a worm 14 is rotatably connected between the inner top wall and the inner bottom wall of the pressure frame 10, and each worm gear 13 is meshed with the worm 14. By setting the worm 14 and the worm gear 13, the self-locking purpose of the expansion piece 7 can be achieved.

[0035] See also Figure 2 , Figure 3 and Figure 4Two limit rods 6 are inserted on the upper surface and bottom of each impacted piece 5, and one end of each two adjacent limit rods 6 is fixedly connected to the same expansion piece 7, and the outer surface of each adjusting shaft 4 is fixedly connected to a cam 9, and each expansion piece 7 is in contact with the cam 9 adjacent to it. Through the setting of the cam 9, the expansion piece 7 can be squeezed to move, and two reset rods 15 are inserted between each two adjacent expansion pieces 7. Two springs 16 are installed between each two adjacent expansion pieces 7, and each spring 16 is sleeved with the reset rod 15 adjacent to it. Through the setting of the spring 16, the purpose of resetting the expansion piece 7 can be achieved.

[0036] See also Figure 1 , Figure 2 and Figure 3 The top of the worm 14 is fixedly connected to a transmission gear 17, the upper surface of the pressure frame 10 is rotatably connected to a power shaft 18, the outer surface of the power shaft 18 is fixedly connected to a power gear 19, the power gear 19 is meshed with the transmission gear 17, and the upper surface of the pressure frame 10 is fixedly connected to two L-shaped ribs 20, a micro motor 21 is installed between the two L-shaped ribs 20, and the output end of the micro motor 21 is fixedly connected to the power shaft 18. Through the setting of the micro motor 21, power can be provided for the rotation of the power shaft 18.

[0037] A water flow sensor in the present embodiment can drive the cam 9 to rotate through the setting of the adjustment shaft 4, thereby squeezing the two expansion plates 7 away from each other, thereby achieving the effect of changing the force area of ​​the impact plate 5, effectively improving the overall flexibility, and avoiding the tedious process of personnel disassembly and replacement. The worm 14 and worm wheel 13 can utilize their self-locking properties to effectively improve the stability of the expansion plate 7 after adjustment.

[0038] It should be noted that the micro motor 21 is electrically connected to an external microprocessor.

[0039] The working principle of the above embodiment is as follows: when in use, by starting the micro motor 21 to rotate, the micro motor 21 drives the power shaft 18 to rotate, and through the meshing transmission of the power gear 19 and the transmission gear 17, drives the worm 14 to rotate, and the worm 14 drives the worm wheel 13 to rotate during the rotation process, and the worm wheel 13 drives the cam 9 to rotate, and the cam 9 squeezes the two expansion plates 7 away from each other, so as to achieve the purpose of adjusting the force area of ​​the impact piece 5. At the same time, through the resetting of the worm wheel 13, the cam 9 can be driven to reset, so that the two expansion pieces 7 are close to each other under the resetting of the spring 16. Compared with the manual replacement of the impact piece 5 in the prior art, the micro motor 21 can be remotely started, thereby changing the area of ​​the impact piece 5, and using the impact force of the water flow to convert the water flow rate into pressure, thereby measuring water flow rate information of different accuracies, effectively improving the labor intensity and work convenience of the detection personnel.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A water flow sensor, comprising a flow velocity detection tube (1), characterized in that: The outer surface of the flow rate detection tube (1) is fixedly inlaid with a plurality of rectangular sealing plugs (2) arranged at equal distances, a moving block (3) is slidably inserted inside each of the rectangular sealing plugs (2), an adjusting shaft (4) is rotatably connected inside each of the moving blocks (3), and a shock-receiving piece (5) is rotatably connected to the right end of each of the adjusting shafts (4); Two limiting rods (6) are inserted into the upper surface and the bottom of each impact-bearing piece (5), and one end of each two adjacent limiting rods (6) is fixedly connected to the same expansion piece (7).

2. A water flow sensor according to claim 1, characterized in that: The left side surface of each impact-receiving piece (5) is fixedly connected to two fixing ribs (8), and the other end of each fixing rib (8) is fixedly connected to a moving block (3) adjacent thereto.

3. A water flow sensor according to claim 1, characterized in that: The outer surface of each adjusting shaft (4) is fixedly connected to a cam (9), and each expansion piece (7) is in contact with the cam (9) adjacent thereto.

4. A water flow sensor according to claim 1, characterized in that: A pressure frame (10) is provided inside the flow velocity detection tube (1), and each of the adjustment shafts (4) is rotatably connected to the pressure frame (10).

5. A water flow sensor according to claim 1, characterized in that: A fixing block (11) is installed on the inner wall of the flow velocity detection tube (1), and a pressure sensor (12) is installed inside the fixing block (11).

6. A water flow sensor according to claim 4, characterized in that: The left end of each adjusting shaft (4) is fixedly connected to a worm gear (13), a worm (14) is rotatably connected between the inner top wall and the inner bottom wall of the pressure frame (10), and each worm gear (13) is meshingly connected to the worm gear (14).

7. A water flow sensor according to claim 1, characterized in that: Two reset rods (15) are inserted between each two adjacent expansion pieces (7), two springs (16) are installed between each two adjacent expansion pieces (7), and each spring (16) is sleeved on the reset rod (15) adjacent to it.

8. A water flow sensor according to claim 6, characterized in that: The top end of the worm (14) is fixedly connected to a transmission gear (17); the upper surface of the pressure frame (10) is rotatably connected to a power shaft (18); the outer surface of the power shaft (18) is fixedly connected to a power gear (19); the power gear (19) is meshingly connected to the transmission gear (17); the upper surface of the pressure frame (10) is fixedly connected to two L-shaped ribs (20); a micro motor (21) is installed between the two L-shaped ribs (20); the output end of the micro motor (21) is fixedly connected to the power shaft (18).

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