An assembly for a flow rate meter

Abstract

The application belongs to the technical field of flow velocity measurement, and particularly relates to an assembled adjustable flow velocity measuring instrument. When the existing flow velocity measuring device is installed on a counterweight, it can only be fixed through a simple bolt assembly, the fixing method is single, the device cannot be easily disassembled after being fixed, the device cannot be well maintained, and the utilization rate is reduced. The device comprises a mechanical box, a hook is installed at the bottom of the mechanical box, a steel rope is wound on the hook, and the steel rope is fixedly connected with the counterweight. A connecting block is arranged on the side of the mechanical box away from the counterweight, and a flow velocity instrument assembly is installed on the connecting block. The flow velocity instrument assembly comprises an adjusting column arranged on the top of the connecting block, a connecting ring is installed on the adjusting column, a measuring shaft is arranged on the outer side of the connecting ring, a speed measuring blade plate is installed on one end of the measuring shaft, and a speed measuring instrument is arranged on the other end of the measuring shaft. The speed measuring instrument is connected with a flow velocity measuring host through a speed measuring optical fiber, and the efficiency of the device during installation and disassembly is improved.

Description

Technical Field

[0001] This invention belongs to the field of flow rate measurement technology, specifically an adjustable flow rate measuring instrument. Background Technology

[0002] Hydrogeology is a branch of geology that refers to the various changes and movements of groundwater in nature. It mainly studies the distribution and formation laws of groundwater, the physical properties and chemical composition of groundwater, groundwater resources and their rational utilization, and the adverse effects of groundwater on engineering construction and mining and their prevention and control.

[0003] With the development of science and the needs of production and construction, hydrogeology has been divided into sub-disciplines such as regional hydrogeology, groundwater dynamics, hydrogeochemistry, water supply hydrogeology, mineral deposit hydrogeology, and soil improvement hydrogeology. In recent years, hydrogeology has been interpenetrating with research on geothermal, earthquake, and environmental geology, forming several new fields.

[0004] The application of flow velocity meters is very wide. Flow velocity meters can be used in water conservancy and hydrological stations, farmland irrigation, open canals, ditches and canals, rivers, tunnels and waterways, groundwater in factories and mines, environmental monitoring stations, experimental research institutes, water conservancy departments of schools, freshwater and seawater research institutes, geological exploration institutes, water resources bureaus and other professional water conservancy and hydrological research units that study flow velocity and flow rate. The instrument is accurate, easy to use and easy to maintain, and is currently the best flow velocity and flow rate instrument.

[0005] When existing flow velocity measuring devices are installed on counterweights, they can only be fixed with simple bolt assemblies. The fixing method is singular, and it is not easy to disassemble after fixing, which can easily damage the device body. It cannot effectively maintain the device, which reduces its utilization rate, reduces the efficiency of its operators, and also reduces the lifespan of the device. Summary of the Invention

[0006] In view of the above situation and to overcome the defects of the prior art, the present invention provides an adjustable flow rate measuring instrument, which effectively solves the problems in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an adjustable flow velocity measuring instrument, comprising a mechanical box, a hook installed at the bottom of the mechanical box, a steel rope wound around the hook, and the steel rope being fixedly connected to a counterweight; a connecting block is provided on the side of the mechanical box away from the counterweight, and a flow velocity meter assembly is installed on the connecting block; the flow velocity meter assembly includes an adjusting column disposed on the top of the connecting block, a connecting ring installed on the adjusting column, a measuring shaft disposed on the outer side of the connecting ring, a speed measuring fan blade mounted on one end of the measuring shaft, and a speed measuring instrument mounted on the other end, the speed measuring instrument being connected to the flow velocity measuring host via a speed measuring optical fiber; the end of the adjusting column away from the counterweight is connected to a float; the side of the connecting block away from the float is connected to a geared adjustment mechanism.

[0008] Preferably, the gear-driven steering mechanism includes a support plate mounted on the mechanical box, a compression rod mounted on the side of the support plate away from the float, and an adjustment plate connected to the end of the compression rod away from the support plate. The adjustment plate and the support plate are connected by a tension spring. Steering limiting plates are mounted on both sides of the adjustment plate, and the steering limiting plates are slidably limited by the steering limiting groove on the inner side of the mechanical box.

[0009] Preferably, a movable rack is installed on the side of the directional limiting plate away from the connecting block, and an extension block is provided on the side of the movable rack near the counterweight block. The extension block is connected to the anti-force damping component. The movable rack meshes with a directional gear, and a directional shaft is provided on the directional gear. The two ends of the directional shaft pass through the directional base and are connected to the inner side of the mechanical box. A drive bevel gear is provided on the directional shaft, and the drive bevel gear is connected to the gear movement limiting mechanism.

[0010] Preferably, the gear-driven limiting mechanism includes a driven bevel gear meshing with a driving bevel gear, a driven shaft on the driven bevel gear, and the driven shaft being connected to the inner side of the mechanical box; a fixed pulley on the driven shaft, which is connected to a mating pulley via a connecting belt; a mating shaft on the mating pulley, one end of which is connected to the inner side of the mechanical box, and a gear on the other end, the gear meshing with the mating gear, and a vortex shaft on the mating gear, which is connected to the inner side of the mechanical box.

[0011] Preferably, the vortex shaft is provided with a vortex region, which is meshed with a turbine. The turbine is provided with a drive threaded shaft, which is connected to the inner side of the mechanical box away from the turbine. The drive threaded shaft is provided with a threaded force block, which is threadedly connected to the drive threaded shaft. The top surface of the threaded force block is provided with a vertical plate, and horizontal plates are installed on both sides of the vertical plate. A bottom force column is provided on the horizontal plate, and a locking plate is installed on the end of the bottom force column near the adjusting plate. The locking plate and the horizontal plate are connected by a compression spring.

[0012] Preferably, the anti-motion extinguishing component includes an anti-motion plate disposed at the bottom of the extension block, auxiliary plates are installed on both sides of the anti-motion plate, the auxiliary plates are limited and slidably disposed with an auxiliary groove provided on the inner side of the mechanical box, and an anti-motion block is installed at the bottom of the anti-motion plate, the anti-motion block is connected to the motion extinguishing unit.

[0013] Preferably, the directional rotating shaft is provided with a clamping gear, which is connected to the opposing easing member; the opposing easing member includes a retaining gear chain provided on the clamping gear, the clamping gear is connected to the driving gear through the retaining gear chain, the driving gear is provided with a driving shaft, the end of the driving shaft away from the driving gear is connected to the opposing pulley, and the opposing pulley is connected to the driving pulley through the opposing belt.

[0014] Preferably, the driving pulley is provided with a counter-rotating shaft, and the two ends of the counter-rotating shaft are connected to the counter-rotating base; the counter-rotating shaft is provided with a first threaded area and a second threaded area, and the threads at both ends are opposite; a protective gear is provided on the end of the counter-rotating shaft away from the driving pulley, and the protective gear is connected to the safety gear through a protective gear chain; a counter-moving plate is provided on the first threaded area and the second threaded area, and a locking block is installed on the side of the counter-moving plate; a moving contact piece is provided on the locking block, and the moving contact piece is connected to a stationary contact piece provided on the groove on the side of the connecting block; a pin unit is provided in the groove.

[0015] Preferably, the damping unit includes a hinged rod hinged to the resisting block, the bottom end of the hinged rod being hinged to a moving block, and the moving block sliding on a slide rail; a limiting block is installed on the bottom surface of the moving block, the limiting block being limited to a moving groove on the inner bottom surface of the mechanical box, and the side of the moving groove being connected to the side of the limiting block by a damping spring; the inner bottom surface of the mechanical box is connected to the resisting plate by a pressing rod; a damping block is provided on the outer wall of the pressing rod, and a damping limiting plate is installed on the side of the damping block, the damping limiting plate being connected to the moving block by a compression spring; both ends of the slide rail are connected to the damping limiting plate; and the two moving blocks are connected by a stabilizing spring.

[0016] Preferably, the latch unit includes a telescopic motor disposed in the groove, and a plug rod is installed at the output end of the telescopic motor. The plug rod passes through a square groove provided on the baffle and is connected to the slot. The side of the connecting block is provided with a locking groove that is connected to the locking plate. The contact between the moving contact piece and the stationary contact piece is used to control the driving prohibition state of the telescopic motor.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) Make two opposing rotating shafts rotate simultaneously, and the first thread area and the second thread area on the opposing rotating shafts rotate simultaneously. The threads on the first thread area and the second thread area are opposite, so that the two opposing moving plates move towards each other. The opposing moving plates drive the locking block to move. The locking block connects with the groove on the side of the connecting block, thereby fixing the connecting block in the second step. At the same time, when the moving contact piece on the locking block contacts the stationary contact piece provided on the groove, the telescopic motor on the pin unit starts. The output end of the telescopic motor drives the insertion rod to move. The insertion rod connects with the slot on the side of the locking block, so that the insertion rod limits and fixes the locking block, so that it will not be dislodged, which is the third step of fixing. At the same time, the telescopic motor automatically shuts off when it moves to a set value. The operator can start the telescopic motor to move in the opposite direction, so that it is no longer limited and fixed. At the same time, the telescopic motor is waterproof, which further improves the fixing efficiency and is easy to disassemble. It protects the body of the device and also improves the service life of the device.

[0019] (2) The operator inserts the connecting block at the bottom of the adjusting column into the mechanical box and fixes the connecting block through the gear-driven adjustment mechanism. Then, the device is placed in the water area where the flow velocity needs to be measured. The counterweight drives the flow meter component into the bottom of the water, and then the float floats on the water surface, thereby adjusting the adjusting column to the appropriate area. Then, the flow velocity of the water area is measured by the speed measuring fan blade and the measured speed is transmitted to the speed measuring instrument. The speed measuring instrument transmits the flow velocity to the flow velocity measuring host through the speed measuring fiber. The operator can then receive the flow velocity of the water area being tested and adjust the length of the flow velocity measuring instrument in the water area.

[0020] (3) As the moving rack descends, it drives the meshing directional gear to rotate, thereby causing the directional shaft to rotate and driving the drive bevel gear to rotate. The drive bevel gear meshes with the driven bevel gear, which in turn causes the driven shaft to rotate. Through a series of engagements, the engaging pulley rotates, which in turn causes the geared gear to drive the vortex shaft to rotate. This causes the vortex area on the vortex shaft to mesh with the turbine, which in turn causes the drive threaded shaft to rotate. This causes the two threaded force blocks to move towards each other, which in turn causes the transverse plate on the threaded force block to move. This causes the locking plate to connect with the locking groove on the side of the connecting block, thus fixing the connecting block in the first step, thereby protecting the main body of the device and allowing the operator to maintain the device effectively, thus improving its utilization rate.

[0021] (4) As the moving rack descends, it drives the stop plate at the bottom of the extension block to descend. The auxiliary plates on both sides of the stop plate slide down in the auxiliary groove, causing the hinge rod on the resist block to hinge and move. Then, it drives the two moving blocks to move away from each other on the slide rail. At this time, the stabilizing spring is in a stretched state and the compression spring is in a compressed state, making its movement stable. This further causes the two limit blocks to move away from each other in the moving groove. At this time, the damping spring is in a compressed state, making its movement smooth. This provides a buffer force for the above devices and further protects the various devices in the mechanical box. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the connecting block structure of the present invention;

[0026] Figure 3 This is one of the main structural schematic diagrams of the present invention;

[0027] Figure 4 This is the second schematic diagram of the main structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the internal structure of the mechanical box of the present invention;

[0029] Figure 6 This is a partial enlarged structural diagram of point A in the present invention;

[0030] Figure 7 This is one of the structural schematic diagrams of the present invention;

[0031] Figure 8 This is a second schematic diagram of the structure of the present invention;

[0032] In the diagram: 1. Mechanical box; 2. Hook; 3. Steel rope; 4. Counterweight; 5. Connecting block; 6. Adjusting column; 7. Connecting ring; 8. Measuring shaft; 9. Speed ​​measuring fan blade; 10. Speed ​​meter; 11. Speed ​​measuring fiber optic cable; 12. Flow velocity measuring main unit; 13. Float; 14. Support plate; 15. Compression rod; 16. Adjusting plate; 17. Tension spring; 18. Directional limiting plate; 19. Directional limiting groove; 20. Moving rack; 21. Extension block; 22. Fixed... 23. Directional gear; 24. Directional shaft; 25. Directional base; 26. Driving bevel gear; 27. Driven bevel gear; 28. Driven shaft; 29. ​​Fully fixed pulley; 30. Connecting belt; 31. Matching pulley; 32. Matching shaft; 33. Gear driven; 34. Matching gear; 35. Whirlpool shaft; 36. Whirlpool zone; 37. Turbine; 38. Driving threaded shaft; 39. Threaded force block; 40. Vertical plate; 41. Horizontal plate; 42. Base force column; 43. Locking plate; 44. Compression spring; 45. Stop plate; 46. Auxiliary plate; 47. Auxiliary groove; 48. Clamping gear; 49. Storage chain; 50. Drive gear; 51. Drive shaft; 52. Opposing belt; 53. Drive pulley; 54. Opposing shaft; 55. Opposing base; 56. First threaded area; 57. Second threaded area; 58. Protective gear; 59. Protective chain; 60. Safety gear; 61. Opposing moving plate; 62. Locking block 62. Moving contact piece; 63. Groove; 64. Stationary contact piece; 65. Resistance block; 66. Opposing pulleys; 67. Hinge rod; 68. Moving block; 69. Slide rail; 70. Limiting block; 71. Moving groove; 72. Delay spring; 73. Pressing rod; 74. Delay block; 75. Delay limiting plate; 76. Compression spring; 77. Stabilizing spring; 78. Telescopic motor; 79. Insert rod; 80. Baffle; 81. Square groove; 82. Slot; 83. Locking groove. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Example 1, by Figures 1 to 8The present invention includes a mechanical box 1, a hook 2 installed at the bottom of the mechanical box 1, a steel rope 3 wound around the hook 2, and the steel rope 3 fixedly connected to a counterweight 4; a connecting block 5 is provided on the side of the mechanical box 1 away from the counterweight 4, and a flow rate meter assembly is installed on the connecting block 5; the flow rate meter assembly includes an adjusting column 6 disposed on the top of the connecting block 5, a connecting ring 7 installed on the adjusting column 6, a measuring shaft 8 disposed on the outer side of the connecting ring 7, a speed measuring fan blade 9 is installed on one end of the measuring shaft 8, and a speed meter 10 is disposed on the other end, the speed meter 10 is connected to a flow rate measuring host 12 through a speed measuring optical fiber 11; the end of the adjusting column 6 away from the counterweight 4 is connected to a float 13; the side of the connecting block 5 away from the float 13 is connected to a geared adjustment mechanism.

[0035] The operator inserts the connecting block 5 at the bottom of the adjusting column 6 into the mechanical box 1, fixes the connecting block 5 through the gear-driven adjustment mechanism, and then places the device in the water area where the flow velocity needs to be measured. The counterweight 4 drives the flow meter assembly to the bottom of the water, and then the float 13 floats on the water surface, thereby adjusting the adjusting column 6 to the appropriate area. Then, the flow velocity of the water area is measured by the speed measuring fan blade 9, and the measured speed is transmitted to the speed measuring instrument 10. The speed measuring instrument 10 transmits the flow velocity to the flow velocity measuring host 12 through the speed measuring fiber optic cable 11. The operator can then receive the measured flow velocity of the water area and adjust the length of the flow velocity measuring instrument in the water area.

[0036] The gear-driven directional adjustment mechanism of this embodiment includes a support plate 14 mounted on the mechanical housing 1. A compression rod 15 is installed on the side of the support plate 14 away from the float 13. The end of the compression rod 15 away from the support plate 14 is connected to an adjusting plate 16. The adjusting plate 16 and the support plate 14 are connected by a tension spring 17. Directional limiting plates 18 are installed on both sides of the adjusting plate 16. The directional limiting plates 18 are slidably limited by directional limiting grooves 19 on the inner side of the mechanical housing 1. A movable rack 20 is installed on the side of the directional limiting plate 18 away from the connecting block 5. An extension block 21 is provided on one side near the counterweight 4, and the extension block 21 is connected to the anti-force damping component; the movable rack 20 meshes with the directional gear 22, and the directional gear 22 is provided with a directional rotating shaft 23. The two ends of the directional rotating shaft 23 pass through the directional base 24 and are connected to the inner side of the mechanical box 1. The directional rotating shaft 23 is provided with a drive bevel gear 25, and the drive bevel gear 25 is connected to the gear movement limiting mechanism; the gear movement limiting mechanism includes a driven bevel gear 26 that meshes with the drive bevel gear 25, and the driven bevel gear 26 is provided with a driven rotating shaft 27. Driven shaft 27 is connected to the inner side of mechanical box 1; a fixed pulley 28 is provided on driven shaft 27, and the fixed pulley 28 is connected to mating pulley 30 via connecting belt 29; a mating shaft 31 is installed on mating pulley 30, one end of mating shaft 31 is connected to the inner side of mechanical box 1, and a gear 32 is installed on the other end, the gear 32 meshes with mating gear 33, a vortex shaft 34 is provided on mating gear 33, and the vortex shaft 34 is connected to the inner side of mechanical box 1; a vortex region 35 is provided on the vortex shaft 34, and the vortex region 35 is connected to the turbine. The turbine 36 is equipped with a meshing connection. A drive threaded shaft 37 is provided on the turbine 36. The drive threaded shaft 37 is connected to the inner side of the mechanical box 1 away from the turbine 36. A threaded force block 38 is provided on the drive threaded shaft 37. The threaded force block 38 is threadedly connected to the drive threaded shaft 37. A vertical plate 39 is provided on the top surface of the threaded force block 38. A horizontal plate 40 is installed on both sides of the vertical plate 39. A bottom force column 41 is provided on the horizontal plate 40. A locking long plate 42 is installed on the end of the bottom force column 41 near the adjusting plate 16. The locking long plate 42 and the horizontal plate 40 are connected by a compression spring 43.

[0037] As the connecting block 5 descends, it causes the bearing plate 14 to descend as well. The descent of the bearing plate 14 compresses the compression rod 15 and the tension spring 17, causing the adjusting limit plates 18 on both sides of the adjusting plate 16 to slide within the adjusting limit grooves 19. This causes the moving rack 20 to descend, and as it descends, it drives the meshing directional gear 22 to rotate. This, in turn, causes the directional shaft 23 to rotate, simultaneously driving the drive bevel gear 25 to rotate. The drive bevel gear 25 meshes with the driven bevel gear 26, which in turn causes the driven shaft 27 to rotate. Through a series of actions, the mating pulley 30 rotates, thereby causing the gear... The moving gear 32 drives the vortex shaft 34 to rotate, causing the vortex region 35 on the vortex shaft 34 to mesh with the turbine 36 to rotate, further causing the drive threaded shaft 37 to rotate, causing the two threads to move towards the force block 38, and then causing the threads to move towards the horizontal plate 40 on the force block 38, so that the locking plate 42 connects with the locking groove 83 on the side of the connecting block 5, thereby fixing the connecting block 5 in the first step, thus protecting the main body of the device, allowing the operator to maintain the device well and improving its utilization rate. At the same time, the threads on the two drive threaded shafts 37 on the side near the moving gear chain 48 are opposite.

[0038] The anti-motion quenching component of this embodiment includes an anti-motion plate 44 disposed at the bottom of the extension block 21, auxiliary plates 45 mounted on both sides of the anti-motion plate 44, the auxiliary plates 45 being slidably positioned with an auxiliary groove 46 provided on the inner side of the mechanical box 1, and an anti-motion block 65 mounted at the bottom of the anti-motion plate 44, the anti-motion block 65 being connected to the quenching unit; a clamping gear 47 is provided on the directional rotating shaft 23, the clamping gear 47 being connected to the opposing easing member; the quenching unit includes a hinge rod 67 hinged to the anti-motion block 65, the bottom end of the hinge rod 67 being hinged to a moving block 68, the moving block 68 being slidably disposed on a slide rail 69; the moving block 68 A limiting block 70 is installed on the bottom surface of the mechanical box 1. The limiting block 70 is positioned to limit the movement of the movable groove 71 on the inner bottom surface of the mechanical box 1. The side of the movable groove 71 is connected to the side of the limiting block 70 by a damping spring 72. The inner bottom surface of the mechanical box 1 is connected to the abutment plate 44 by a pressing rod 73. A damping block 74 is provided on the outer side wall of the pressing rod 73. A damping limiting plate 75 is installed on the side of the damping block 74. The damping limiting plate 75 is connected to the movable block 68 by a compression spring 76. The two ends of the slide rail 69 are connected to the damping limiting plate 75. The two movable blocks 68 are connected by a stabilizing spring 77.

[0039] As the moving rack 20 descends, it also causes the abutment plate 44 at the bottom of the extension block 21 to descend. The auxiliary plates 45 on both sides of the abutment plate 44 slide down within the auxiliary groove 46, causing the hinge rod 67 on the resist block 65 to hinge and move. This causes the two moving blocks 68 to move relatively away from each other on the slide rail 69. At this time, the stabilizing spring 77 is in a stretched state and the compression spring 76 is in a compressed state, making its movement stable. This further causes the two limiting blocks 70 to move relatively away from each other within the moving groove 71. At this time, the damping spring 72 is in a compressed state, making its movement smooth. This provides a buffer force for the above devices and further protects the various devices inside the mechanical box 1.

[0040] The opposing easing component in this embodiment includes a retaining gear chain 48 disposed on the clamping gear 47. The clamping gear 47 is connected to the driving gear 49 via the retaining gear chain 48. The driving gear 49 is provided with a driving shaft 50. The end of the driving shaft 50 away from the driving gear 49 is connected to an opposing pulley 66. The opposing pulley 66 is connected to the driving pulley 52 via an opposing belt 51. The driving pulley 52 is provided with an opposing shaft 53. Both ends of the opposing shaft 53 are connected to an opposing base 54. The opposing shaft 53 is provided with a first threaded area 55 and a second threaded area 56, and the threads at both ends are opposite. A protective gear 57 is provided on the end of the opposing shaft 53 away from the driving pulley 52. ​​The protective gear 57 is connected to a safety gear chain 58 via a protective gear chain 58. Gear 59 is connected; opposing moving plates 60 are provided on the first threaded area 55 and the second threaded area 56, and locking blocks 61 are installed on the side of the opposing moving plates 60. A moving contact piece 62 is provided on the locking block 61, and the moving contact piece 62 is connected to a stationary contact piece 64 provided on a groove 63 on the side of the connecting block 5; a pin unit is provided in the groove 63; the pin unit includes a telescopic motor 78 disposed in the groove 63, and a plug rod 79 is installed at the output end of the telescopic motor 78. The plug rod 79 passes through a square groove 81 provided on the baffle 80 and is connected to a slot 82; a locking groove 83 is provided on the side of the connecting block 5 and is connected to the locking plate 42; the contact between the moving contact piece 62 and the stationary contact piece 64 is used to control the driving prohibition state of the telescopic motor 78;

[0041] While the clamping gear 47 rotates, it drives the driving gear 49 to rotate via the storage chain 48, causing the opposing pulley 66 on the driving shaft 50 to rotate. The opposing pulley 66, connected by the opposing belt 51, drives the driving pulley 52 to rotate, which in turn causes the opposing shaft 53 to rotate. The protective gear 57 on the end of the opposing shaft 53 away from the driving pulley 52 drives the safety gear 59 to rotate via the protective chain 58, causing both opposing shafts 53 to rotate simultaneously. At the same time, the first threaded area 55 and the second threaded area 56 on the opposing shafts 53 rotate. The threads on the first threaded area 55 and the second threaded area 56 are opposite, causing the two opposing moving plates 60 to move towards each other. The opposing moving plates 60 drive the locking block 61 to move. The locking block 61 and the recess on the side of the connecting block 5... The groove 63 is connected, thus fixing the connecting block 5 in the second step. At the same time, when the moving contact piece 62 on the locking block 61 contacts the stationary contact piece 64 on the groove 63, the telescopic motor 78 on the pin unit is started. The output end of the telescopic motor 78 drives the insertion rod 79 to move. The insertion rod 79 connects with the slot 82 on the side of the locking block 61, so that the insertion rod 79 limits and fixes the locking block 61, preventing it from dislodging, which is the third step of fixing. At the same time, the telescopic motor 78 automatically shuts off when it moves to a set value. The operator can start the telescopic motor 78 to move in the opposite direction, so that it is no longer limited and fixed. The telescopic motor 78 is waterproof, which further improves the fixing efficiency and makes it easy to disassemble, protecting the main body of the device and extending its service life.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flow rate measuring instrument with adjustable parameters, characterized in that: The device includes a mechanical box (1), with a hook (2) installed at the bottom of the mechanical box (1), and a steel rope (3) wound around the hook (2). The steel rope (3) is fixedly connected to the counterweight (4). A connecting block (5) is provided on the side of the mechanical box (1) away from the counterweight (4), and a flow meter assembly is installed on the connecting block (5). The flow meter assembly includes an adjusting column (6) set on the top of the connecting block (5), a connecting ring (7) installed on the adjusting column (6), a measuring shaft (8) provided on the outer side of the connecting ring (7), a speed measuring fan blade (9) installed on one end of the measuring shaft (8), and a speed meter (10) provided on the other end. The speed meter (10) is connected to the flow velocity measuring host (12) through a speed measuring fiber (11). The end of the adjusting column (6) away from the counterweight (4) is connected to a float (13). The side of the connecting block (5) away from the float (13) is connected to a gear-driven adjustment mechanism. The gear-driven steering mechanism includes a support plate (14) mounted on the mechanical box (1). A compression rod (15) is installed on the side of the support plate (14) away from the float (13). The end of the compression rod (15) away from the support plate (14) is connected to an adjusting plate (16). The adjusting plate (16) and the support plate (14) are connected by a tension spring (17). Steering limit plates (18) are installed on both sides of the adjusting plate (16). The steering limit plates (18) are slidably limited to the steering limit groove (19) on the inner side of the mechanical box (1). A movable rack (20) is installed on the side of the directional limiting plate (18) away from the connecting block (5). An extension block (21) is provided on the side of the movable rack (20) close to the counterweight block (4). The extension block (21) is connected to the anti-force damping component. The movable rack (20) meshes with the directional gear (22). A directional rotating shaft (23) is provided on the directional gear (22). Both ends of the directional rotating shaft (23) pass through the directional base (24) and are connected to the inner side of the mechanical box (1). A drive bevel gear (25) is provided on the directional rotating shaft (23). The drive bevel gear (25) is connected to the gear movement limiting mechanism. The directional shaft (23) is provided with a clamping gear (47), which is connected to the opposing easing member; the opposing easing member includes a storage tooth chain (48) provided on the clamping gear (47), the clamping gear (47) is connected to the driving gear (49) through the storage tooth chain (48), the driving gear (49) is provided with a driving shaft (50), the end of the driving shaft (50) away from the driving gear (49) is connected to the opposing pulley (66), and the opposing pulley (66) is connected to the driving pulley (52) through the opposing belt (51); The active pulley (52) is provided with a counter-rotating shaft (53), and the two ends of the counter-rotating shaft (53) are connected to the counter-rotating base (54). The counter-rotating shaft (53) is provided with a first threaded area (55) and a second threaded area (56), and the threads at both ends are opposite. A protective gear (57) is provided on the end of the counter-rotating shaft (53) away from the active pulley (52). The protective gear (57) is connected to the safety gear (59) through a protective tooth chain (58). The first threaded area (55) and the second threaded area (56) are provided with a counter-moving plate (60). A locking block (61) is installed on the side of the counter-moving plate (60). A moving contact piece (62) is provided on the locking block (61). The moving contact piece (62) is connected to the stationary contact piece (64) provided on the groove (63) on the side of the connecting block (5). A pin unit is provided in the groove (63).

2. The adjustable flow rate measuring instrument according to claim 1, characterized in that: The gear-driven limiting mechanism includes a driven bevel gear (26) meshing with the driving bevel gear (25), a driven shaft (27) on the driven bevel gear (26), and the driven shaft (27) being connected to the inner side of the mechanical box (1); a fixed pulley (28) is provided on the driven shaft (27), and the fixed pulley (28) is connected to the mating pulley (30) via a connecting belt (29); a mating shaft (31) is installed on the mating pulley (30), one end of the mating shaft (31) is connected to the inner side of the mechanical box (1), and a gear (32) is installed on the other end, the gear (32) meshing with the mating gear (33), and a vortex shaft (34) is provided on the mating gear (33), and the vortex shaft (34) is connected to the inner side of the mechanical box (1).

3. The adjustable flow rate measuring instrument according to claim 2, characterized in that: The vortex shaft (34) is provided with a vortex zone (35), which is meshed with the turbine (36). The turbine (36) is provided with a drive threaded shaft (37), which is connected to the inner side of the mechanical box (1) away from the turbine (36). The drive threaded shaft (37) is provided with a threaded force block (38), which is threadedly connected to the drive threaded shaft (37). The top surface of the threaded force block (38) is provided with a vertical plate (39), and horizontal plates (40) are installed on both sides of the vertical plate (39). The horizontal plate (40) is provided with a bottom force column (41), and a locking long plate (42) is installed on one end of the bottom force column (41) near the adjusting plate (16). The locking long plate (42) and the horizontal plate (40) are connected by a compression spring (43).

4. The adjustable flow rate measuring instrument according to claim 3, characterized in that: The anti-motion extinguishing component includes an anti-motion plate (44) disposed at the bottom of the extension block (21), auxiliary plates (45) are installed on both sides of the anti-motion plate (44), the auxiliary plates (45) are limited and slidably disposed with the auxiliary groove (46) provided on the inner side of the mechanical box (1), and an anti-motion block (65) is installed at the bottom of the anti-motion plate (44), the anti-motion block (65) is connected to the anti-motion unit.

5. The adjustable flow rate measuring instrument according to claim 4, characterized in that: The damping unit includes a hinge rod (67) hinged to the abutment block (65), the bottom end of the hinge rod (67) is hinged to the moving block (68), the moving block (68) is slidably arranged on the slide rail (69); a limit block (70) is installed on the bottom surface of the moving block (68), the limit block (70) is limited to the movement of the moving groove (71) on the inner bottom surface of the mechanical box (1), and the side of the moving groove (71) is connected to the side of the limit block (70) by a damping spring (72); The inner bottom surface of the mechanical box (1) is connected to the stop plate (44) by a pressing rod (73); the outer side wall of the pressing rod (73) is provided with a damping block (74), and a damping limit plate (75) is installed on the side of the damping block (74). The damping limit plate (75) and the moving block (68) are connected by a compression spring (76); the two ends of the slide rail (69) are connected to the damping limit plate (75); the two moving blocks (68) are connected by a stabilizing spring (77).

6. The adjustable flow rate measuring instrument according to claim 5, characterized in that: The latch unit includes a telescopic motor (78) disposed in a groove (63), and a plug rod (79) is installed at the output end of the telescopic motor (78). The plug rod (79) passes through a square groove (81) provided on the baffle (80) and is connected to the slot (82). The side of the connecting block (5) is provided with a locking groove (83) connected to the locking plate (42). The contact between the moving contact piece (62) and the stationary contact piece (64) is used to control the driving prohibition state of the telescopic motor (78).

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