CN219265451U - Portable open channel flowmeter calibrating device - Google Patents
Portable open channel flowmeter calibrating device Download PDFInfo
- Publication number
- CN219265451U CN219265451U CN202320136748.9U CN202320136748U CN219265451U CN 219265451 U CN219265451 U CN 219265451U CN 202320136748 U CN202320136748 U CN 202320136748U CN 219265451 U CN219265451 U CN 219265451U
- Authority
- CN
- China
- Prior art keywords
- open channel
- rotating rod
- plate
- rod
- internal thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The utility model provides a portable open channel flowmeter calibrating device, and belongs to the technical field of open channel flow detection. The utility model comprises a bottom plate, a mounting box, a rotating rod, a second internal thread pipe and a driving mechanism, wherein the lower side surface of the bottom plate is provided with a fixed supporting rod and two movable supporting rods, the bottom plate is fixedly provided with the mounting box through the fixed plate, the lower end of the rotating rod is vertically and fixedly arranged on the bottom plate, the upper end of the rotating rod is rotationally connected with the mounting box, the rotating rod is provided with two second convex edges, a second external thread is arranged between the two second convex edges, the second internal thread pipe is in threaded connection with the rotating rod, the outer side of the second internal thread pipe is horizontally and fixedly provided with a reflecting plate, the reflecting plate is vertically and penetratingly provided with two sleeves, the movable supporting rods upwards extend through the corresponding sleeves, the end part of the movable supporting rods is provided with a horizontal rod, and the driving mechanism can drive the rotating rod to rotate. The utility model can realize flow measurement under the condition that the open channel is anhydrous and rapidly complete the verification of the open channel flowmeter.
Description
Technical Field
The utility model belongs to the technical field of open channel flow detection, and relates to a portable open channel flowmeter calibrating device.
Background
Because the ultrasonic open channel flowmeter adopts a non-contact measuring method, the ultrasonic open channel flowmeter is widely applied to the fields of agricultural irrigation water quantity measurement, river water quantity monitoring, enterprise sewage discharge monitoring and the like.
Under microcomputer control, the ultrasonic open channel flowmeter transmits and receives ultrasonic waves, the distance between the open channel flowmeter and the measured liquid level is calculated according to the transmission time, so that the liquid level height is obtained, and the flow is obtained through calculation by a processor in the instrument by combining the geometric dimension of a standard weir groove, a side slope coefficient, channel precision, a hydraulic ramp and a flow velocity vertical plane correction coefficient. Because the measurement accuracy of the ultrasonic open channel flowmeter depends on the liquid level measurement accuracy, referring to the prior patent CN201720484868.2, the liquid level height is measured by utilizing a liquid level meter, three rows of overflow holes are respectively arranged on the upstream surface of the energy dissipation cylinder and the two sides of the upstream surface, and then the height position of the energy dissipation cylinder is adjusted, so that the liquid level water surface is positioned between two adjacent overflow holes, and the measured liquid level is the same as the actual liquid level, but in the actual detection process, the problems of difficult water flow control, fluctuation of the liquid level, uneven height of the canal bottom and the like exist, and the detection accuracy of the open channel flowmeter is affected. In addition, if the water quantity flowing through the open channel is insufficient, water storage is needed to be waited, the detection time is prolonged,
disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a portable open channel flowmeter calibrating device which can realize flow detection under the condition that an open channel is anhydrous, rapidly complete the calibration of the open channel flowmeter and improve the detection precision.
The aim of the utility model can be achieved by the following technical scheme:
the portable open channel flowmeter calibrating device comprises a bottom plate, wherein a fixed stay bar and two movable stay bars are arranged on the lower side surface of the bottom plate;
the mounting box is vertically arranged on the bottom plate and fixedly arranged at the top of the fixing plate, and scales are marked on the side edges of the fixing plate along the length direction;
the lower end of the rotating rod is vertically and rotatably arranged on the bottom plate, the upper end of the rotating rod is rotatably connected with the mounting box, two second convex edges are arranged on the rotating rod, and second external threads are arranged between the two second convex edges;
the second internal thread pipe is connected to the rotating rod through a second external thread, a reflecting plate is horizontally and fixedly arranged on the outer side of the second internal thread pipe, two sleeves vertically penetrate through the reflecting plate, the two movable supporting rods correspond to the two sleeves one by one, the movable supporting rods extend upwards to penetrate through the corresponding sleeves, and a horizontal rod is arranged at the end part of the movable supporting rods;
the driving mechanism is arranged in the mounting box and can drive the rotating rod to rotate.
Preferably, the driving mechanism includes:
the first gear is internally provided with an installation cavity, the upper end of the rotating rod extends into the installation cavity, and the end part of the rotating rod is coaxially and fixedly connected with the first gear;
the motor is fixedly arranged in the mounting cavity, a second gear is fixedly arranged on an output shaft of the motor, and the second gear is meshed with the first gear.
Preferably, the fixing plate is provided with a sliding slot hole along the length direction, one side of the reflecting plate, which is close to the sliding slot hole, is provided with an extension rod, and the extension rod penetrates through the sliding slot hole and extends to the outer side of the fixing plate.
Preferably, two first convex edges are arranged on the movable stay bar, first external threads are arranged between the two first convex edges, two first internal thread pipes vertically penetrate through the bottom plate, the two first internal thread pipes correspond to the two movable stay bars one by one, and the movable stay bars are connected to the corresponding first internal thread pipes through the first external threads.
Preferably, a level gauge is arranged in the middle of the reflecting plate.
Preferably, the outer end of the extension rod penetrating through the slide slot hole is vertically fixedly provided with a scale rod, the outer side of the installation box is provided with a guide plate, the guide plate is provided with a guide hole, and the scale rod extends upwards to penetrate through the guide hole and the end part of the scale rod is provided with a top plate.
Preferably, the upper end of the rotating shaft penetrates out of the mounting cavity and extends to the upper side of the mounting box, and a hand wheel is arranged at the end part of the rotating shaft.
Compared with the prior art, the utility model has the following advantages:
1. the calibrating device is placed at the bottom of the open channel, the rotating rod is driven to rotate through the driving mechanism, the second internal thread pipe and the reflecting plate rotate, the reflecting plate is limited by the two movable supporting rods to move up and down, different liquid level heights are simulated by lifting of the reflecting plate, the condition of unstable water flow or insufficient water quantity is avoided, the ultrasonic open channel flowmeter can rapidly detect different liquid level heights, then the measured flow of the ultrasonic open channel flowmeter is compared with the standard flow calculated by the actual height of the reflecting plate, the calibration of the ultrasonic open channel flowmeter is completed, the operation is simple, and the detection precision and the detection efficiency are improved;
2. when the bottom of the open channel is uneven, the length of the movable supporting rods below the bottom plate can be changed by rotating the horizontal rods on the two movable supporting rods, the levelness of the bottom plate and the reflecting plate is adjusted, whether the reflecting plate is horizontal or not is observed through a level meter, the reflecting plate is ensured to be adjusted in place, and the ultrasonic open channel flowmeter is more accurate in measurement;
3. in an initial state, when a second internal thread pipe on the reflecting plate contacts a second protruding edge below the rotating rod, the scale of the scale rod extending out of the upper part of the guide plate is zero, the rotating rod is driven by the motor to rotate, so that the second internal thread pipe and the reflecting plate move upwards, the scale rod moves upwards, at the moment, the scale indicated by the scale rod and the upper side surface of the guide plate is the lifting distance of the reflecting plate, and a detector can adjust the height position of the reflecting plate in real time by controlling the motor, so that the operation is simple; in addition, when carrying out many high measurement contrast, the detection personnel can stand on the side of open channel and directly read out the height of reflecting plate in succession, avoid the trouble that need upwards lift up whole device and read out the reflecting plate height from the scale on the fixed plate many times, improve detection efficiency greatly.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view at A-A in FIG. 1;
FIG. 3 is a cross-sectional view at B-B in FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C;
fig. 5 is a schematic view showing upward movement of the reflection plate;
FIG. 6 is a cross-sectional view at D-D in FIG. 5;
fig. 7 is a schematic diagram of the operation of the present utility model.
In the figure: 1. a bottom plate; 11. a first internally threaded tube; 12. fixing the stay bar; 13. a fixing plate; 131. a slide slot; 2. a movable stay bar; 21. a first flange; 22. a first external thread; 23. a sleeve; 24. a horizontal bar; 3. a rotating lever; 31. a second external thread; 32. a second internally threaded tube; 33. a second flange; 34. a first gear; 35. a hand wheel; 4. a mounting box; 41. a mounting cavity; 42. a motor; 421. a second gear; 43. a storage battery; 5. a reflection plate; 51. an extension rod; 52. a scale bar; 53. a top plate; 6. a guide rod; 61. a guide hole; 7. a level gauge; 8. open channels.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
Embodiment one:
as shown in fig. 1-4, a portable open channel flowmeter verification device includes a base plate 1, a mounting box 4, a rotating rod 3, a second internally threaded tube 32, a first gear 34, and a motor 42.
The lower side of the bottom plate 1 is vertically provided with a fixed stay bar 12 and two movable stay bars 2, preferably, the lower ends of the fixed stay bar 12 and the two movable stay bars 2 are spherical, and the length of the fixed stay bar 12 is between 1cm and 2 cm.
The bottom plate 1 is vertically provided with a fixed plate 13, the mounting box 4 is fixedly arranged at the top of the fixed plate 13, the fixed plate 13 is provided with a sliding slot hole 131 along the length direction, the side edge of the fixed plate 13 is provided with a scale mark along the length direction, and the scale at the lowest end is the length distance from the position to the lower end of the fixed element 12.
The lower extreme vertical rotation setting of dwang 3 is on bottom plate 1, the upper end of dwang 3 is connected with installation box 4 rotation, dwang 3 and fixed stay 12 are coaxial from top to bottom, be equipped with two second protruding edges 33 on the dwang 3, two be equipped with second external screw thread 31 between the protruding edge 33 of second.
The second internal thread pipe 32 passes through second external thread 31 threaded connection on dwang 3, the reflecting plate 5 has been set firmly to the outside level of second internal thread pipe 32, two vertical running through is equipped with two sleeve pipes 23 on the reflecting plate 5 movable vaulting pole 2 and two sleeve pipes 23 one-to-one, movable vaulting pole 2 upwards extends and passes corresponding sleeve pipe 23 and the tip is equipped with horizontal pole 24, one side that reflecting plate 5 is close to slotted hole 131 is equipped with extension rod 51, extension rod 51 passes slotted hole 131 and extends to the outside of fixed plate 13, the upside parallel and level of the upside of extension rod 51 and reflecting plate 5.
The installation box 4 is internally provided with an installation cavity 41, the upper end of the rotating rod 3 extends into the installation cavity 41, and the end part of the rotating rod is fixedly connected with the first gear 34 in a coaxial way.
The motor 42 is fixedly arranged in the mounting cavity 41, a second gear 421 is fixedly arranged on an output shaft of the motor 42, the second gear 421 is in meshed connection with the first gear 34, a storage battery 43 is arranged in the mounting cavity 41, and the storage battery 43 is electrically connected with the motor 42. Preferably, the second gear 421 is smaller than the first gear 34, and the first gear 34 and the second gear 421 cooperate to provide a decelerating effect to the rotating rod 3.
The ultrasonic open channel flowmeter comprises a probe and an instrument controller, and the probe is erected above the open channel 8 through a bracket.
The calibrating device is placed at the bottom of the open channel 8, the motor 42 is started to drive the rotating rod 3 to rotate, the second internal thread tube 32 and the reflecting plate 5 rotate, the reflecting plate 5 is limited by the two movable supporting rods 2 to move up and down, the liquid levels of different heights in the open channel 8 are simulated by using the lifting height of the reflecting plate 5, the distance between the probe and the reflecting plate 5 can be measured by the ultrasonic open channel flowmeter, then the liquid level simulated by the transmitting plate 5 is obtained by subtracting the distance between the probe and the reflecting plate 5 from the distance between the probe and the bottom of the open channel 8, in addition, the actual heights of the extending rod 51 and the reflecting plate 5 can be directly read from the scale mark on the fixed plate 13, finally, the measured flow obtained by the ultrasonic open channel flowmeter is compared with the standard flow calculated by the actual height of the reflecting plate 5, the calibration of the ultrasonic open channel flowmeter is finished under the condition that no water exists in the open channel 8, the operation is simple, meanwhile, the condition that the water flow is unstable or the water quantity is insufficient is avoided, and the detection precision and the detection efficiency is improved.
Embodiment two:
as shown in fig. 1, in this embodiment, two first protruding edges 21 are disposed on the movable supporting rod 2, a first external thread 22 is disposed between the two first protruding edges 21, two first internal thread pipes 11 are vertically penetrating through the bottom plate 1, the two first internal thread pipes 11 and the two movable supporting rods 2 are in one-to-one correspondence, the movable supporting rod 2 is connected to the corresponding first internal thread pipes 11 through the first external thread 22, and a level meter 7 is disposed in the middle of the reflecting plate 5, preferably, the level meter 7 is a bubble level meter.
When the bottom of the open channel 8 is uneven, the length of the movable supporting rods 2 positioned below the bottom plate 1 can be changed by rotating the horizontal rods 24 on the two movable supporting rods 2, the levelness of the bottom plate 1 and the reflecting plate 5 is adjusted, and whether the reflecting plate is horizontal or not is observed through the level meter 7, so that the reflecting plate 5 is adjusted in place, and the ultrasonic open channel flowmeter is more accurate in measurement; in addition, because the upper end of the movable supporting rod 2 extends to the upper side of the reflecting plate 5, the levelness of the bottom plate 1 and the reflecting plate 5 can be adjusted by conveniently and directly rotating the horizontal rod 24 when a detector stands on the side of the open channel 8, and the structure is simple and the operation is convenient.
Embodiment III:
as shown in fig. 5-7, in this embodiment, the outer end of the extension rod 51 passing through the slide slot hole 131 is vertically fixed with a scale rod 52, the outer side of the installation box 4 is provided with a guide plate 6, the guide plate 6 is provided with a guide hole 61, the scale rod 52 extends upwards to pass through the guide hole 61, and the end part is provided with a top plate 53.
In the initial state, when the second internal thread tube 32 on the reflecting plate 5 contacts the second convex edge 33 positioned below the rotating rod 3, the scale of the scale rod 52 extending out of the upper part of the guide plate 6 is zero, the rotating rod 3 is driven to rotate by the motor 42, so that the second internal thread tube 32 and the reflecting plate 5 move upwards, the scale rod 52 moves upwards, at the moment, the scale indicated by the scale rod 52 and the upper side surface of the guide plate 6 is the lifting distance of the reflecting plate 5, and a detector can adjust the height position of the reflecting plate 5 in real time by controlling the motor 42, so that the operation is simple; in addition, when carrying out many high measurement contrast, the detection personnel can stand on the side of open channel 8 and directly read out the height of reflecting plate 5 in succession, avoid the trouble that need upwards lift up whole device and read out the reflecting plate 5 height from the scale on the fixed plate 13 many times, improve detection efficiency greatly.
Preferably, the upper end of the rotating shaft 3 extends out of the mounting cavity 41 to above the mounting box 4 and is provided with a hand wheel 35 at the end. When the storage battery 43 is not powered or the motor 42 is damaged, the hand wheel 35 can be rotated to drive the rotating rod 3 to rotate, so that the reflecting plate 5 can be lifted manually; in addition, the height of the reflecting plate 5 can be finely adjusted by manually rotating the hand wheel 35, so that the detection precision is improved.
Claims (7)
1. The portable open channel flowmeter calibrating device is characterized by comprising a bottom plate (1), wherein a fixed stay bar (12) and two movable stay bars (2) are arranged on the lower side surface of the bottom plate (1);
the mounting box (4) is vertically arranged on the bottom plate (1), the mounting box (4) is fixedly arranged at the top of the fixing plate (13), and scale marks are arranged on the side edges of the fixing plate (13) along the length direction;
the lower end of the rotating rod (3) is vertically arranged on the bottom plate (1) in a rotating mode, the upper end of the rotating rod (3) is rotationally connected with the mounting box (4), two second convex edges (33) are arranged on the rotating rod (3), and second external threads (31) are arranged between the two second convex edges (33);
the second internal thread pipe (32), second internal thread pipe (32) is on dwang (3) through second external thread (31) threaded connection, reflecting plate (5) has been set firmly to the outside level of second internal thread pipe (32), vertically run through on reflecting plate (5) and be equipped with two sleeve pipes (23), two movable vaulting pole (2) and two sleeve pipes (23) one-to-one, movable vaulting pole (2) upwards extends and passes corresponding sleeve pipe (23) and the tip is equipped with horizon bar (24);
the driving mechanism is arranged in the mounting box (4) and can drive the rotating rod (3) to rotate.
2. The portable open channel flow meter verification device of claim 1, wherein said drive mechanism comprises:
the first gear (34) is internally provided with a mounting cavity (41), the upper end of the rotating rod (3) extends into the mounting cavity (41), and the end part of the rotating rod is coaxially and fixedly connected with the first gear (34);
the motor (42), motor (42) are fixed in installation cavity (41), second gear (421) has been set firmly on the output shaft of motor (42), second gear (421) and first gear (34) meshing are connected.
3. The portable open channel flowmeter calibrating device according to claim 2, wherein the fixing plate (13) is provided with a sliding slot hole (131) along the length direction, one side of the reflecting plate (5) close to the sliding slot hole (131) is provided with an extension rod (51), and the extension rod (51) penetrates through the sliding slot hole (131) to extend to the outer side of the fixing plate (13).
4. A portable open channel flowmeter calibrating device according to claim 3, wherein two first protruding edges (21) are arranged on the movable supporting rod (2), first external threads (22) are arranged between the two first protruding edges (21), two first internal thread pipes (11) are vertically and penetratingly arranged on the bottom plate (1), the two first internal thread pipes (11) are in one-to-one correspondence with the two movable supporting rods (2), and the movable supporting rods (2) are in threaded connection with the corresponding first internal thread pipes (11) through the first external threads (22).
5. The portable open channel flowmeter assay device of claim 4, wherein a level meter (7) is provided in the middle of the reflector plate (5).
6. A portable open channel flowmeter calibrating device according to claim 3, characterized in that the outer end of the extension rod (51) penetrating through the slide slot hole (131) is vertically fixed with a scale rod (52), the outer side of the mounting box (4) is provided with a guide plate (6), the guide plate (6) is provided with a guide hole (61), the scale rod (52) extends upwards to penetrate through the guide hole (61) and the end part is provided with a top plate (53).
7. The portable open channel flowmeter verification device according to claim 2, wherein the upper end of the rotating rod (3) extends out of the mounting cavity (41) to above the mounting box (4) and is provided with a hand wheel (35) at the end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320136748.9U CN219265451U (en) | 2023-01-13 | 2023-01-13 | Portable open channel flowmeter calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320136748.9U CN219265451U (en) | 2023-01-13 | 2023-01-13 | Portable open channel flowmeter calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219265451U true CN219265451U (en) | 2023-06-27 |
Family
ID=86866524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320136748.9U Active CN219265451U (en) | 2023-01-13 | 2023-01-13 | Portable open channel flowmeter calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219265451U (en) |
-
2023
- 2023-01-13 CN CN202320136748.9U patent/CN219265451U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021174449A1 (en) | Water quality sampling device for environmental protection technology development | |
| CN113375733B (en) | Open channel automatic flow measuring device based on flow cross section area measurement and flow measuring method thereof | |
| CN219265451U (en) | Portable open channel flowmeter calibrating device | |
| CN113124951B (en) | Automatic flow measuring device for transverse swing rod type open channel | |
| CN209446061U (en) | A kind of project cost measuring scale | |
| CN116625439A (en) | Real-time monitoring device for drainage flow under hydraulic and hydroelectric engineering | |
| CN215639685U (en) | Hydropower station water level state monitoring device | |
| CN108362912B (en) | Flow velocity meter calibrating device and calibrating method thereof | |
| CN214200221U (en) | Cantilever type open channel intelligent online flow measuring device | |
| CN113341173B (en) | Water flow online measuring device | |
| CN111457987B (en) | Concrete resistance value calibration device and method for super-irrigation monitoring system | |
| CN211504138U (en) | Intelligent response laser reinforced concrete structure swing optical detector | |
| CN220136469U (en) | Ultrasonic open channel flowmeter calibrating device based on range sensor | |
| CN216593673U (en) | Water level monitoring device for hydraulic engineering | |
| CN209857921U (en) | Double-well tide gauge calibrating device | |
| CN113819831A (en) | Large-area concrete flatness detection device and method | |
| CN214702289U (en) | Automatic change equipment fixing straightness detection device that hangs down | |
| CN219244742U (en) | Hydraulic engineering detects with quick velocity of flow water level measuring device | |
| CN116558611A (en) | Ultrasonic open channel flowmeter calibrating device based on range sensor | |
| CN113566931B (en) | Intelligent calibration method and system for pre-gate reflection type water level gauge based on edge calculation | |
| CN216695178U (en) | Reservoir water level detection device | |
| CN219511642U (en) | Ultrasonic water level meter calibration testing machine | |
| CN220912235U (en) | House building area observation device | |
| CN220853722U (en) | Automatic calibration device for channel water level and flow relation curve | |
| CN218673536U (en) | Pile foundation hole depth measuring device for pile foundation construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |