CN113567641A

CN113567641A - Water quality testing device that hydraulic engineering used

Info

Publication number: CN113567641A
Application number: CN202110771175.2A
Authority: CN
Inventors: 张莹; 王庆宝
Original assignee: Nanjing Qushun Water Conservancy Engineering Testing Co ltd
Current assignee: Nanjing Qushun Water Conservancy Engineering Testing Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-10-29

Abstract

The invention belongs to the technical field of hydraulic engineering, in particular to a water quality detection device for hydraulic engineering, which aims at solving the problem that detection error is increased due to shaking and bumping caused by the fact that belt return detection is needed when the turbidity of water quality is detected in the prior art. The combined measuring cup can fill the liquid at the depth and temporarily seal the liquid, and then the combined measuring cup can be lifted to carry out real-time measurement on a ship.

Description

Water quality testing device that hydraulic engineering used

Technical Field

The invention relates to the technical field of hydraulic engineering, in particular to a water quality detection device for hydraulic engineering.

Background

Surface water is also called land water, refers to water existing on the surface of the crust and exposed to the atmosphere, is a general term of four water bodies, namely rivers, glaciers, lakes and marshes, is one of important sources of domestic water for human beings, is also a main component of water resources of various countries, and is used for detecting the quality of the surface water in order to guarantee the safety of the domestic water, but the water quality detection is various.

For example, present surface water is played by visitor and the forest destruction leads to the turbidity increase of water mostly like the lake in scenic spot, if not timely the processing can influence whole view, the influence that the water of the different degree of depth of different positions received is also different, consequently just need one kind can carry out the novel detection device that online turbidity detected to the different degree of depth, do benefit to accurate the administering in later stage with obtaining accurate figure, what present adjustable surface water quality testing sampling device can not be better when the sample fixes, and only can take the sample to take the time back and detect, this detects very inapplicable to the turbidity, can influence detection precision and ageing after putting for a long time, consequently just need the novel water quality testing device of a short-term detection rapid feedback.

Disclosure of Invention

The invention provides a water quality detection device for hydraulic engineering, aiming at solving the problem that detection error is increased due to shaking and bumping because the detection needs to be carried back when the turbidity of water quality is detected in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a water quality detection device for hydraulic engineering comprises a detection box with a cuboid-shaped structure, wherein a cavity is arranged in the detection box, inflatable supporting plates are fixed on the lower surface of the detection box close to the edges of the front side and the rear side, a through hole is formed in the middle of the bottom of the detection box, a supporting frame is fixed above the through hole in the middle of the bottom of the detection box, a detector is fixed on the inner wall of the supporting frame close to the top end, a horizontally-placed winding drum is rotatably connected right above the supporting frame, a same gas pipe is wound on the outer wall of the circumference of the winding drum, a fixing groove is wound on one end, far away from the winding drum, of the gas pipe, a fixing groove is wound on the gas pipe, an annular counterweight barrel with a cavity arranged in the fixing groove is fixed on the gas pipe in a bypassing manner, a hanging pipe is fixed at the bottom end of the fixing groove, a fixing disc with a cylindrical structure is fixed at the bottom end of the fixing disc, a rubber snap ring is connected in a clamping manner, and an inner barrel with an upward opening is inserted in the rubber snap ring, the top opening of the inner barrel is provided with a notch, the outer wall of the inner barrel is sleeved with an outer barrel, a first tension spring is fixed between the inner wall of the bottom of the outer barrel and the outer wall of the bottom of the inner barrel, a slide rod is fixed at the bottom of the outer barrel, the annular counterweight barrel is connected to the outer wall of the slide rod in a sliding manner, and a one-way valve is inserted at the bottom end of the annular counterweight barrel, so that when the water quality detection is required to be carried out on the required depth at the bottom of the water in use, the annular counterweight barrel is filled with water, the outer barrel can be pulled downwards for a certain distance to expose the notch, the annular counterweight barrel is inflated when the combined measuring cup is lowered to the required depth, the water in the annular counterweight barrel is discharged, at the moment, the gravity of the annular counterweight barrel is smaller than the buoyancy force to rise, the outer barrel moves upwards under the action of the first tension spring to seal the notch, and the liquid at the depth is filled and temporarily sealed, and then the ship can carry out real-time measurement by hoisting.

According to the preferable scheme, the inner wall of the detection box is fixedly provided with the supporting plate at the end part of the winding drum, the upper surface of the supporting plate is fixedly provided with the speed reducing motor, the top end of an output shaft of the speed reducing motor is fixedly provided with the transmission rod, and the winding drum is fixedly arranged on the transmission rod, so that power is provided for winding and unwinding of the winding drum.

As a preferable scheme in the invention, the inner wall of the winding drum is provided with an insertion hole, a miniature air pump is fixed on the inner wall of the winding drum close to the insertion hole, and one end of the air delivery pipe far away from the annular counterweight barrel is inserted on an air outlet of the miniature air pump.

According to the preferable scheme, the fixed disc is of a disc-shaped structure with a cavity arranged inside, the bottom of the fixed disc is fixedly provided with the fixing ring with the inner diameter equal to the diameter of the round hole, the outer wall of the rubber snap ring is fixed on the fixing ring, the outer wall of the inner barrel and the inner wall of the rubber snap ring form interference fit, threads are reserved on the circumferential outer wall of the inner barrel close to the top end, and therefore the inner barrel can be tightly clamped in the rubber snap ring when the rubber snap ring is used, the sealing effect is improved, and the rubber snap ring is convenient to disassemble.

As a preferable scheme in the invention, three air holes which are distributed in a centrosymmetric manner are formed in the top end of the fixed disc, which is close to the middle part, the top ends of the air holes are fixed with glass rings, and the middle part of the bottom of the inner barrel is fixed with a lens, so that a laser emitter of the detector can be adjusted right above the inner barrel when the inner barrel is used, then the laser emitter penetrates through the glass rings to irradiate the liquid to be detected, and then the liquid is reflected to the upper part through the underwater lens, thereby reducing refraction and deflection generated by side detection and improving the detection effect.

As a preferable scheme in the invention, a clamping block with a conical structure is embedded at the bottom end of the outer barrel, a screw hole is formed in the lower surface of the clamping block, a thread groove matched with the screw hole is formed in the top end of the sliding rod, and the fixed disk, the inner barrel, the outer barrel, the tension spring I in the fixed disk and the annular counterweight barrel connected to the sliding rod in a sliding mode form the combined measuring cup.

As the preferable scheme of the invention, the bottom end of the sliding rod is fixedly provided with the limiting block, and the outer diameter of the limiting block is larger than the middle aperture of the annular counterweight barrel, so that the limiting and guiding effects can be realized when the annular counterweight barrel descends, and a certain ascending boosting force is provided when the conveying pipe pulls the combined measuring cup to ascend.

As a preferable scheme in the invention, the positioning stop rods are fixed on the inner walls of the four sides of the supporting frame close to the bottom end, and the distance between the end parts of the two opposite positioning stop rods is greater than the diameter of the air holes, so that the positioning stop rods can not block the air holes.

As a preferable scheme in the invention, the one-way valve comprises an outer pipe, an annular retainer ring fixed on the inner wall of the outer pipe and close to the bottom end, a plug clamped at the bottom end of the annular retainer ring, and a second tension spring fixed between the top end of the plug and the pipe opening of the outer pipe, so that when the one-way valve is used, water in the annular counterweight barrel can be discharged only by continuously injecting air to the middle when the water in the annular counterweight barrel needs to be discharged.

As a preferable scheme in the invention, a signal emitter is embedded at the top end of the detection box, and a controller matched with the signal emitter is fixed in the detection box and used for processing instructions and sending control instructions so as to ensure that the speed reduction motor can rotate forwards and backwards when required, and the micro air pump is started and stopped and the result fact of the detector is recorded as required.

To sum up, the beneficial effect in this scheme is:

1. the water quality detection device for the hydraulic engineering comprises an inner barrel with a notch and an outer barrel connected to the outer wall of the inner barrel in a sliding mode, when the water quality detection device is used and water quality detection needs to be carried out on a target depth to be detected at the bottom of a water body, the annular counterweight barrel is filled with water firstly, then the outer barrel can be pulled downwards relative to the inner barrel for a distance, the notch is exposed so that water can enter the inner barrel, the annular counterweight barrel is inflated when a combined measuring cup descends to the required depth so as to discharge the water in the annular counterweight barrel, at the moment, the gravity of the annular counterweight barrel is smaller than buoyancy force and rises, the outer barrel moves upwards under the action of a first tension spring to seal the notch, and then the liquid at the depth is filled and temporarily stored, and then the outer barrel is lifted up to carry out real-time measurement on a ship;

2. according to the water quality detection device for the hydraulic engineering, the air holes and the glass ring above the air holes are matched with the lens on the inner wall of the bottom of the inner barrel, when the water quality detection device is used, a laser emitter of the detector can be adjusted to be right above the water quality detection device, then the laser emitter penetrates through the glass ring to irradiate liquid to be detected, and the liquid is reflected to the upper side through the lens at the bottom of the water quality detection device, so that refraction and deflection generated by side detection are reduced, and the detection effect is improved;

3. according to the water quality detection device for the hydraulic engineering, the sliding rod inserted at the bottom end of the outer barrel and the limiting block at the bottom end of the outer barrel are arranged, so that the limiting and guiding effects can be achieved when the annular counterweight barrel descends, and a certain ascending boosting force is provided when the conveying pipe pulls the combined measuring cup to ascend;

4. this kind of water quality testing device that hydraulic engineering used, the one-way valve from inside to outside through the drainage direction that sets up to can only need continuous to jet-propelled water discharge in the annular counterweight bucket to the centre when the water in the annular counterweight bucket of needs discharge when using.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention before sampling;

FIG. 2 is a schematic view of the overall structure of the combination measuring cup of the present invention;

FIG. 3 is a schematic view of the assembled structure of the combination measuring cup of the present invention;

FIG. 4 is a schematic cross-sectional view of a check valve of the present invention;

FIG. 5 is a schematic cross-sectional view of the present invention after sampling;

FIG. 6 is an enlarged view of the structure at A in FIG. 5 according to the present invention;

fig. 7 is a partial sectional structural view of the support frame of the present invention.

In the figure: the device comprises a detection box 1, a support plate 2, a speed reducing motor 3, a miniature air pump 4, a detector 5, a positioning stop lever 6, a support frame 7, an air delivery pipe 8, a winding drum 9, a transmission rod 10, a bearing plate 11, a signal emitter 12, a fixed disc 13, a hanging pipe 1301, a 1302 fixed groove, a 1303 air hole, a 1304 glass ring, a 1305 round hole, a 14 outer barrel, a 15 tension spring I, a 16 annular counterweight barrel, a 17 one-way valve, a 1701 plug, a 1702 tension spring II, a 1703 annular retainer ring, an 18 sliding rod, a 19 clamping block, a 20 lens, a 21 inner barrel, a 2101 notch, an 22 inflation supporting plate and a 23 rubber clamping ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-7, a water quality testing device for hydraulic engineering, comprising a testing box 1 with a cuboid structure with a cavity inside, wherein the lower surface of the testing box 1 is fixed with inflatable supporting plates 22 near the front and back edges, so that the whole device can float on water to form a boat-shaped structure, a perforation is arranged in the middle of the bottom of the testing box 1, a supporting frame 7 is fixed above the perforation in the middle of the bottom of the testing box 1, a detector 5 is fixed on the inner wall of the supporting frame 7 near the top end, a horizontally placed winding drum 9 is rotatably connected right above the supporting frame 7, the outer wall of the circumference of the winding drum 9 is wound with a same gas pipe 8, a fixing groove 1302 is wound on one end of the gas pipe 8 far from the winding drum 9, the gas pipe 8 is wound around the fixing groove 1302 and fixed with an annular counterweight barrel 16 with a cavity inside, a hanging pipe 1301 is fixed at the bottom end of the fixing groove 1302, and a fixing disk 13 with a cylindrical structure is fixed at the bottom end of the hanging pipe 1301, the bottom end of the fixed disc 13 is provided with a round hole 1305, the round hole 1305 is clamped with a rubber snap ring 23, the rubber snap ring 23 is inserted with an inner barrel 21 with an upward opening, the opening at the top end of the inner barrel 21 is provided with a notch 2101, the outer wall of the inner barrel 21 is sleeved with an outer barrel 14, a tension spring I15 is fixed between the inner wall of the bottom of the outer barrel 14 and the outer wall of the bottom of the inner barrel 21, the bottom of the outer barrel 14 is fixed with a slide rod 18, the annular counterweight barrel 16 is slidably connected to the outer wall of the slide rod 18, the bottom end of the annular counterweight barrel 16 is inserted with a one-way valve 17, so that when the water quality detection is needed to be carried out at the required depth of the water bottom in use, the annular counterweight barrel 16 is filled with water, the outer barrel 14 can be pulled downwards by a distance to expose the notch 2101, and the annular counterweight barrel 16 is inflated when the combined measuring cup is lowered to the required depth, so as to discharge the water in the annular counterweight barrel 16, at the moment, the gravity of the annular counterweight barrel 16 is smaller than the buoyancy force and rises, the outer barrel 14 moves upwards under the action of the first tension spring 15 to seal the notch 2101, so that the liquid at the depth is filled and temporarily sealed, and then the annular counterweight barrel is lifted to carry out real-time measurement on the ship.

According to the invention, a supporting plate 2 is fixed on the end part, located on a winding drum 9, of the inner wall of a detection box 1, a speed reduction motor 3 is fixed on the upper surface of the supporting plate 2, a transmission rod 10 is fixed at the top end of an output shaft of the speed reduction motor 3, and the winding drum 9 is fixed on the transmission rod 10, so that power is provided for winding and unwinding of the winding drum 9.

Wherein, the inner wall of reel 9 is opened there is the jack, and the inner wall of reel is close to jack department and is fixed with miniature air pump 4, and the one end that annular counter weight bucket 16 was kept away from to gas-supply pipe 8 is pegged graft on the venthole of miniature air pump 4.

Wherein, the fixed disk 13 is the disc-shaped structure of establishing the cavity in for, and the bottom of fixed disk 13 is fixed with the retainer plate that the internal diameter equals round hole 1305 diameter, and the outer wall of rubber snap ring 23 is fixed on the retainer plate, the outer wall of interior bucket 21 and the inner wall of rubber snap ring 23 form interference fit, and the circumference outer wall of interior bucket 21 is close to the top and has reserved the screw thread, thereby can be when using with the joint that interior bucket 21 is tight in rubber snap ring 23, not only improved sealed effect, convenient the dismantlement moreover.

Wherein, the top of fixed disk 13 is close to the middle part and is opened there is three bleeder vent 1303 that is central symmetric distribution, and the top of bleeder vent 1303 is fixed with glass ring 1304, and is fixed with lens 21 in the middle of the bottom of interior bucket 21 to can be with directly over the laser emitter adjustment of detector 5 when using, later pass glass ring 1304 again and shine and wait to detect in the liquid, reflect to the top again through submarine lens 20, reduced refraction and the partial reflection that produces from the side detection, improved detection effect.

Wherein, the bottom of outer bucket 14 inlays and is equipped with fixture block 19 of conical structure, and the lower surface of fixture block 19 is opened has the screw, and the top of slide bar 18 is opened has the screw groove with screw looks adaptation, and fixed disk 13, interior bucket 21, outer bucket 14 and inside extension spring 15 and the annular counter weight bucket 16 of sliding connection on slide bar 18 constitute the combination graduated flask, and the annular counter weight bucket 16 gravity after adorning water is greater than 2 times of the one 15 resilience of extension spring, ensures that the annular counter weight bucket 16 after adorning water can be smoothly draw outer bucket 14 down and draw in order to expose breach 2101.

Wherein, the bottom end of the slide bar 18 is fixed with a limiting block, and the outer diameter of the limiting block is larger than the middle aperture of the annular counterweight barrel 16, thereby playing the role of limiting and guiding when the annular counterweight barrel 16 descends, and providing a certain ascending boosting force when the conveying pipe 8 pulls the combined measuring cup to ascend.

The positioning blocking rods 6 are fixed on the inner walls of the four sides of the supporting frame 7 close to the bottom end, and the distance between the end parts of the two opposite positioning blocking rods 6 is larger than the diameter of the air holes 1303, so that the positioning blocking rods 6 can not block the air holes 1303.

Wherein, the check valve 17 includes the outer tube, fix the annular retaining ring 1703 that is close to the bottom in the outer tube inner wall, the stopper 1701 of joint at annular retaining ring 1703 bottom and be fixed with extension spring two 1702 between the mouth of pipe of the top of stopper 1701 and outer tube to can discharge the water in the annular counterweight barrel 16 to the middle gas injection that only needs to be constantly when needing to discharge the water in the annular counterweight barrel 16 when using.

Wherein, the top of detection case 1 inlays and is equipped with signal emitter 12, and the inside of detection case 1 is fixed with the controller with signal emitter 12 looks adaptation for handle the instruction and send control command, in order to ensure that gear motor 3 can be in the time of needs just reversing to and the opening and close of miniature air pump 4 and with the result fact record of detector 5 as required.

The working principle is as follows: when the water quality detection device is used and water quality detection needs to be carried out on the required depth of the water bottom, the annular counterweight barrel 16 is filled with water, and then the outer barrel 14 can be pulled downwards for a distance to expose the notch 2101; then, the speed reducing motor 3 is controlled to rotate reversely, so that the gas conveying pipe 8 wound on the winding drum 9 is slowly unwound, the combined measuring cup slowly descends into the water under the action of gravity, when the combined measuring cup descends to a required depth, the miniature gas pump 4 is started to inflate the annular weighing barrel 16, so that the water in the annular weighing barrel 16 is discharged, the gravity of the annular weighing barrel 16 is smaller than the buoyancy force and ascends, the outer barrel 14 moves upwards under the action of the first tension spring 15 to seal the notch 2101, then the liquid at the depth is filled and temporarily stored, and then the water is lifted up to be measured on the ship in real time.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A water quality detection device for hydraulic engineering comprises a detection box (1) with a cuboid structure and a cavity, wherein an inflatable supporting plate (22) is fixed at the edges of the front side and the rear side of the lower surface of the detection box (1) close to the front side and the rear side of the lower surface of the detection box (1), a perforation is formed in the middle of the bottom of the detection box (1), a supporting frame (7) is fixed above the perforation in the middle of the bottom of the detection box (1), a detector (5) is fixed at the position, close to the top end, of the inner wall of the supporting frame (7), and is characterized in that a winding drum (9) which is horizontally placed is rotatably connected right above the supporting frame (7), a same air pipe (8) is wound on the outer circumferential wall of the winding drum (9), a fixing groove (1302) is wound at one end, far away from the winding drum (9), of the air pipe (8), and an annular counterweight barrel (16) with the cavity formed in the fixing groove (1302) is wound on the air pipe (8), the bottom end of fixed slot (1302) is fixed with hanging tube (1301), and the bottom end of hanging tube (1301) is fixed with fixed disk (13) that is cylindrical structure, open the bottom of fixed disk (13) has round hole (1305), and has connect rubber snap ring (23) in round hole (1305), and has pegged graft interior bucket (21) that the opening is ascending in rubber snap ring (23), the top end opening part of interior bucket (21) is opened jaggedly (2101), and the outer wall of interior bucket (21) has cup jointed outer bucket (14), be fixed with extension spring (15) between the bottom inner wall of outer bucket (14) and the bottom outer wall of interior bucket (21), and the bottom of outer bucket (14) is fixed with slide bar (18), and annular counterweight bucket (16) sliding connection is on the outer wall of slide bar (18), the bottom of annular counterweight bucket (16) is pegged graft and is had check valve (17).

2. The water quality detection device for the water conservancy project according to claim 1, characterized in that a supporting plate (2) is fixed to the end, located at a winding drum (9), of the inner wall of the detection box (1), a speed reduction motor (3) is fixed to the upper surface of the supporting plate (2), a transmission rod (10) is fixed to the top end of an output shaft of the speed reduction motor (3), and the winding drum (9) is fixed to the transmission rod (10).

3. The water quality detection device for the water conservancy project according to claim 1, wherein the inner wall of the winding drum (9) is provided with a jack, a miniature air pump (4) is fixed on the inner wall of the winding drum close to the jack, and one end of the air pipe (8) far away from the annular counterweight barrel (16) is inserted into an air outlet of the miniature air pump (4).

4. The water quality detection device for the water conservancy project according to claim 1, wherein the fixed disk (13) is of a disc-shaped structure with a cavity arranged inside, a fixed ring with the inner diameter equal to the diameter of the round hole (1305) is fixed at the bottom of the fixed disk (13), the outer wall of the rubber snap ring (23) is fixed on the fixed ring, the outer wall of the inner barrel (21) and the inner wall of the rubber snap ring (23) form interference fit, and threads are reserved on the outer wall of the circumference of the inner barrel (21) close to the top end.

5. The water quality detection device for the water conservancy project according to claim 1, wherein three air holes (1303) which are distributed in a central symmetry manner are formed in the top end of the fixed disc (13) close to the middle part, a glass ring (1304) is fixed at the top end of each air hole (1303), and a lens (21) is fixed in the middle of the bottom of the inner barrel (21).

6. The water quality detection device for the water conservancy project according to claim 1, characterized in that a clamping block (19) with a conical structure is embedded at the bottom end of the outer barrel (14), a screw hole is formed in the lower surface of the clamping block (19), a thread groove matched with the screw hole is formed in the top end of the sliding rod (18), and a fixed disk (13), an inner barrel (21), the outer barrel (14), an internal tension spring I (15) and an annular counterweight barrel (16) which is slidably connected to the sliding rod (18) form a combined measuring cup.

7. The water quality detection device for the water conservancy project according to claim 6, characterized in that a limiting block is fixed at the bottom end of the sliding rod (18), and the outer diameter of the limiting block is larger than the middle aperture of the annular counterweight barrel (16).

8. The water quality detection device for the water conservancy project according to claim 1, wherein the positioning stop rods (6) are fixed on the inner walls of the four sides of the support frame (7) close to the bottom end, and the distance between the end parts of the two opposite positioning stop rods (6) is larger than the diameter of the air holes 1303.

9. The water quality detection device for the water conservancy project according to claim 1, characterized in that, the check valve (17) includes the outer tube, fix at the outer tube inner wall near annular retaining ring (1703) of bottom end, the stopper (1701) of joint in annular retaining ring (1703) bottom end and be fixed with extension spring two (1702) between the mouth of pipe of the top of stopper (1701) and outer tube.

10. The water quality detection device for the water conservancy project according to claim 1, characterized in that a signal emitter (12) is embedded at the top end of the detection box (1), and a controller matched with the signal emitter (12) is fixed in the detection box (1) and used for processing commands and sending control commands.