CN112326349A - A quality of water sand content sampling test device for hydraulic engineering - Google Patents
A quality of water sand content sampling test device for hydraulic engineering Download PDFInfo
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- CN112326349A CN112326349A CN202011202035.5A CN202011202035A CN112326349A CN 112326349 A CN112326349 A CN 112326349A CN 202011202035 A CN202011202035 A CN 202011202035A CN 112326349 A CN112326349 A CN 112326349A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
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Abstract
The invention relates to the field of water conservancy detection, in particular to a water quality sand content sampling and detecting device for water conservancy engineering, which comprises: the opening of the U-shaped pipe fitting is vertically upward; the fixed cylinder piece is coaxially arranged at one end of the U-shaped pipe piece, and a filter element is coaxially arranged in the fixed cylinder piece; the collecting cylinder is coaxially and detachably arranged at the top end of the fixed cylinder piece and is used for collecting the filtered silt; the wide opening of the collecting hopper is vertical to the axis of the narrow opening, the narrow opening of the collecting hopper is coaxially and detachably connected with the top end of the collecting cylinder, and a blocking net and an electric shutter locking mechanism are arranged at the wide opening of the collecting hopper; the manual negative pressure generating pipe fitting is coaxially arranged at the other end of the U-shaped pipe fitting; the liquid level adjusting pipe is coaxially arranged at the top end of the manual negative pressure generating pipe, and the working end of the liquid level adjusting pipe is coaxially provided with a contact type liquid level sensor and a one-way valve; the hose is coaxially arranged at the top end of the liquid level adjusting pipe fitting; t type support, its both sides and U type pipe fitting top fixed connection, the silt in the device can the prefiltration water sample in advance, is convenient for detect.
Description
Technical Field
The invention relates to the field of water conservancy detection, in particular to a water quality sand content sampling and detecting device for water conservancy projects.
Background
At present, in water conservancy water quality detection, the detection of the sand content of water quality is particularly important, but because the silt in natural water quality is mostly suspended sediment, the uniformity is poor, the sand content is distributed along the vertical direction differently, the sediment with higher density is positioned at the bottom layer, the silt content is measured at present by firstly collecting the silt and then carrying out layered separation on the silt of the suspended matter, because the separation is needed, the filtering is needed after the separation, the quality difference before and after the calculation of drying filter paper is realized, the operation steps of the whole process are complicated, sampling points with larger errors are not specific enough, in order to ensure that the silt at the suspended position is collected, the collector needs to be suspended in the water body, but because the water quality flows, the collector floats in the water flow, the silt in the water body can not be rapidly gathered, and large particles at the bottom layer can be impacted into the collector along with the flowing and scouring of the water body, can not gather silt along water flow direction, influence the collection work of collector, need filter the water sample of gathering after the collection is accomplished, dry after filtering water quality, weigh out silt quality, reach the sand content, need go on alone to the filtration of silt, it is longer to detect sample time, and the error is big.
Chinese patent CN201711258914.8 discloses a water quality sand content sampling device for hydraulic engineering, it is characterized in that the annular baffle is sleeved on the inner sleeve, the annular baffle is made of silica gel, an annular steel wire framework is embedded in the silica gel, two ends of the outer sleeve are respectively arranged on the annular baffle through a slewing bearing, a plurality of wheel discs are arranged on the inner wall of the outer sleeve at equal intervals, the turntable is a wavy ring, a plurality of rotating blades are arranged on the turntable at equal angles, and are parallel to each other, a plurality of guide vanes are equidistantly arranged on the outer wall of the inner sleeve and are respectively positioned between two adjacent wheel discs, the inner sleeve is provided with four through holes, and are respectively communicated with the outer sleeve, every two of the four through holes form a group, the two groups of through holes are distributed up and down, the limiting ring is arranged on the inner wall of the inner sleeve, the connecting rod is arranged in the inner sleeve, and one end of the water outlet pipe penetrates through the limiting ring to be connected with a limiting plate, and two water outlet holes are formed in the limiting plate.
This sampling device passes through the unable negative pressure that produces of rim plate and rotating vane and inhales water to the mass flow cover, and the mass flow cover is shorter relatively, the quality of water of the unable effectual extraction different degree of depth.
Disclosure of Invention
For solving above-mentioned technical problem, provide a quality of water sand content sample detection device for hydraulic engineering, this technical scheme has solved the great position of quality of water velocity of flow and can't carry out the problem that effective sampling detected to its sand content.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a quality of water sand content sampling test device for hydraulic engineering, including: the opening of the U-shaped pipe fitting is vertically upward; the fixed cylinder piece is coaxially arranged at one end of the U-shaped pipe piece, and a filter element for filtering silt is coaxially arranged in the fixed cylinder piece; the collecting cylinder is coaxially and detachably arranged at the top end of the fixed cylinder piece and is used for collecting the filtered silt; the wide opening of the collecting hopper is vertical to the axis of the narrow opening, the narrow opening of the collecting hopper is coaxially and detachably connected with the top end of the collecting cylinder, and the wide opening of the collecting hopper is provided with a blocking net for blocking larger gravels and an electric shutter locking mechanism for communicating water flow; the manual negative pressure generating pipe fitting is coaxially arranged at the other end of the U-shaped pipe fitting, and the negative pressure drawing direction of the manual negative pressure generating pipe fitting is vertically upward; the liquid level adjusting pipe fitting is coaxially arranged at the top end of the manual negative pressure generating pipe fitting and used for adjusting the distance between the liquid level in a working pipe of the manual negative pressure generating pipe fitting and the bottom end of the U-shaped pipe fitting, a contact type liquid level sensor and a one-way valve are coaxially arranged at the working end of the liquid level adjusting pipe fitting, the working end of the contact type liquid level sensor faces downwards vertically, the one-way valve faces upwards vertically in the direction, and the contact type liquid level sensor is electrically connected with the controller; the hose is coaxially arranged at the top end of the liquid level adjusting pipe fitting, and the top end of the hose is higher than a water quality detection level in a working state; and the two sides of the T-shaped support are fixedly connected with the top end of the U-shaped pipe fitting, and the top end of a vertical rod of the T-shaped support is higher than a water quality detection horizontal plane in a working state.
Preferably, the U-shaped pipe member includes: a three-way manual valve; the device comprises a first L-shaped pipe and a second L-shaped pipe, wherein a first sealing flange and a second sealing flange are coaxially arranged at two ends of the first L-shaped pipe and two ends of the second L-shaped pipe respectively, the first L-shaped pipe and the second L-shaped pipe are fixedly connected with two end structures of a three-way manual valve in a U shape with upward openings through the flanges, and a fixed cylinder part and a manual negative pressure generation pipe are coaxially arranged at the top ends of the first L-shaped pipe and the second L-shaped pipe respectively.
Preferably, the U-shaped pipe fitting further comprises an internal thread fixing cylinder, a third flange fixedly connected with the first sealing flange at the top end is coaxially arranged at the bottom end of the internal thread fixing cylinder, and the inner diameter of the internal thread fixing cylinder is larger than that of the third flange; the fixed cylinder part also comprises: the external thread fixing cylinder is coaxially screwed in the internal thread fixing cylinder; the inner diameter of the limiting cylinder is sequentially reduced from top to bottom and is coaxially and fixedly arranged at the top end of the external thread fixing cylinder; the fixed cylinder is coaxially arranged at the top end of the limiting cylinder; the outer diameter of the limiting ring is gradually reduced from top to bottom, the coaxial butt joint is arranged on the inner periphery of the limiting cylinder, the butt joint net is arranged on the inner periphery of the limiting ring along the radial direction, and the filter element is in coaxial butt joint with the top end of the butt joint net.
Preferably, the fixed cylinder part further comprises a first fixed ring, the first fixed ring is coaxially arranged at the top end of the fixed cylinder, and first openings along the radial direction are uniformly distributed on the periphery of the first fixed ring; the bottom end of the collecting cylinder is further coaxially provided with a second fixing ring, second openings in the radial direction are uniformly distributed on the periphery of the second fixing ring, and a hanging turnover bolt fixedly connected with the first opening is further arranged on each second opening.
Preferably, the inner diameter of the collection cylinder decreases gradually from top to bottom.
Preferably, the wide opening of the collecting hopper is obliquely and upwards arranged at the top end of the collecting cylinder.
Preferably, the manual negative pressure generating pipe comprises: the first fixing pipe is coaxially arranged at the top end of the second L-shaped pipe; the rotating tripod is coaxially and fixedly arranged at the upper end and the lower end of the first fixed pipe; the rotating shaft is coaxially and rotatably arranged on the rotating tripod, a one-way thread piece is arranged on the circumferential surface of the rotating shaft, and a rubber sealing piece in interference fit with the inner circumference of the first fixed pipe is arranged on the outer circumference of the one-way thread piece; the driven shaft is arranged between the T-shaped bracket and the first fixed pipe in a radial rotating mode along the rotating shaft, and one end of the driven shaft penetrates through the first fixed pipe; the first bevel gear and the second bevel gear are respectively and coaxially arranged at one end of the rotating shaft and one end of the driven shaft, and the axes of the bevel gears are vertical and are mutually meshed; the driving shaft coaxial support is vertically arranged on one side of a vertical rod of the T-shaped support, and a turntable is coaxially arranged at the top end of the driving shaft; the third bevel gear and the fourth bevel gear are coaxially arranged at one ends of the driven shaft and the driving shaft, and axes of the bevel gears are vertical and are meshed with each other.
Preferably, the liquid level regulating pipe further comprises: the second fixing pipe is coaxially arranged at the top end of the manual negative pressure generating pipe fitting, and a first limiting groove and a second limiting groove along the axial direction are uniformly distributed on the inner periphery of the second fixing pipe respectively; the inner sliding block is coaxially and slidably arranged in the second fixing pipe, first limiting strips vertically matched with the first limiting grooves in a sliding mode are uniformly distributed on the periphery of the inner sliding block, a first placing groove is further formed in the periphery of each first limiting strip, and the contact type liquid level sensor and the one-way valve are coaxially arranged on the inner sliding block; the outer sliding ring is coaxially sleeved on the periphery of the second fixing pipe, a second limiting strip vertically matched with the second limiting groove in a sliding mode is arranged on the inner periphery of the outer sliding ring, a second placing groove is further formed in the inner periphery of the second limiting strip, a fixing lug is further arranged at the top end of the outer sliding ring, and a fixing nut along the axial direction of the second fixing pipe is arranged on one side of the fixing lug; the first magnet and the second magnet are coaxially arranged on the first placement groove and the second placement groove respectively, and opposite sides of the magnets are mutually attracted; and the bolt is coaxially screwed on the fixing nut and abuts against the periphery of the second fixing pipe.
Preferably, scales for marking the limit capacity are arranged on the periphery of the second fixed pipe at equal intervals along the vertical direction.
Preferably, the bottom end of the inner periphery of the second fixing pipe is coaxially screwed with an external thread limiting ring for preventing the inner sliding block from sliding downwards and falling off.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the pipe fitting generates negative pressure through manual negative pressure, so that the filter element filters sediment in a water sample, and the sampling capacity can be adjusted through the liquid level adjusting pipe fitting; the bolt is unscrewed, so that the outer sliding ring can vertically slide on the second fixed pipe along the axial direction, the inner sliding block is driven to coaxially slide in the second fixed pipe through the mutual attraction of the first magnet and the second magnet, and the limited capacity of the inner sliding block is adjusted according to the scale; when the device works, the U-shaped pipe fitting is vertically inserted into water, so that the wide opening of the collecting hopper horizontally faces to the water flow direction; starting the electric shutter locking mechanism to open and close the working end of the shutter locking mechanism, so that the flow collecting hopper is communicated with water quality; the driving shaft is rotated, so that the driven shaft drives the rotating shaft to coaxially rotate on the rotating tripod, the coaxially rotating one-way thread piece vertically extracts air at the bottom end upwards, the air is discharged outwards through the one-way valve and the hose, negative pressure is generated in the U-shaped pipe, water is sucked into the flow collecting hopper, larger sand in the water cannot fall into the flow collecting hopper due to the action of the blocking net to influence the collecting effect, the water sequentially passes through the collecting barrel and the fixed barrel under the action of gravity and suction, the fixed barrel is internally provided with the filter element, so that silt in the water is filtered and accumulated in the collecting barrel, the filtered water sequentially passes through the U-shaped pipe, the manual negative pressure generating pipe and the liquid level adjusting pipe until the working end of the contact type liquid level sensor detects the liquid level height in the second fixed barrel, and the controller controls the locking closing of the working end of the electric shutter locking mechanism, thereby completing the collection work; put forward detection device from the aquatic through T type support, therefore the surge drum is dismantled with solid fixed cylinder spare and current collection fill and is connected to moving the external screw thread solid fixed cylinder through twisting and hanging upset bolt and pull down the surge drum, will wherein silt is collected and is dried and weighs, predetermine the water level through comparing the liquid level control pipe fitting, can obtain this sample layer quality of water sand content, compare traditional collection refilter in the sample layer, this detection device is more convenient, and can adjust the sample volume, the suitability is stronger.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a side view of the present invention;
3 FIG. 3 4 3 is 3a 3 cross 3- 3 sectional 3 view 3 at 3 section 3A 3- 3A 3 of 3 FIG. 3 3 3; 3
3 FIG. 3 5 3 is 3a 3 perspective 3 sectional 3 view 3 at 3 section 3A 3- 3A 3 of 3 FIG. 3 3 3; 3
FIG. 6 is a partial enlarged view of FIG. 5 at B;
FIG. 7 is an enlarged view of a portion of FIG. 5 at C;
FIG. 8 is an enlarged view of a portion of FIG. 5 at D;
FIG. 9 is an enlarged view of a portion of FIG. 5 at E;
fig. 10 is a partial enlarged view of fig. 5 at F.
The reference numbers in the figures are:
1-U-shaped pipe fitting; 1 a-three-way manual valve; 1 b-a first L-shaped tube; 1b1 — first sealing flange; 1 c-a second L-shaped tube; 1c1 — second sealing flange; 1 d-an internal thread fixing cylinder; 1d1 — third flange;
2-fixing the cylinder; 2 a-a filter element; 2 b-an external thread fixing cylinder; 2 c-a limiting cylinder; 2 d-a fixed cylinder; 2 e-a stop collar; 2e 1-abutment net; 2 f-a first retainer ring; 2f1 — first opening;
3-a collection cylinder; 3 a-a second retainer ring; 3a1 — second opening; 3 b-hanging a turnover bolt;
4-collecting hopper; 4 a-blocking net; 4 b-an electric shutter locking mechanism;
5-manual negative pressure generating pipe fitting; 5 a-a first stationary tube; 5 b-rotating the tripod; 5 c-axis of rotation; 5c 1-unidirectional thread pieces; 5c 2-rubber sealing sheet; 5 d-driven shaft; 5 e-a first bevel gear; 5 f-second bevel gear; 5 g-driving shaft; 5g 1-rotating disc; 5 h-bracket; 5 i-third bevel gear; 5 j-fourth bevel gear;
6-liquid level regulating pipe fitting; 6 a-contact level sensor; 6 b-a one-way valve; 6 c-a second stationary tube; 6c 1-first restraint slot; 6c 2-second retaining groove; 6c 3-scale; 6c 4-external thread spacing collar; 6 d-inner slide block; 6d 1-first stop bar; 6d 2-first resting groove; 6 f-outer sliding ring; 6f 1-second stop bar; 6f 2-second resting groove; 6f 3-fixing ears; 6f 4-fixing nut; 6 g-first magnet; 6 h-second magnet; 6 i-bolt;
7-a hose;
8-T type bracket.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
Referring to fig. 4, a water quality sand content sampling and detecting device for hydraulic engineering comprises:
the U-shaped pipe fitting 1 is provided with an opening which is vertically upward;
the fixed cylinder part 2 is coaxially arranged at one end of the U-shaped pipe fitting 1, and a filter element 2a for filtering silt is coaxially arranged in the fixed cylinder part 2;
the collecting cylinder 3 is coaxially and detachably arranged at the top end of the fixed cylinder part 2 and is used for collecting the filtered silt;
the wide opening of the flow collecting hopper 4 is vertical to the axis of the narrow opening, the narrow opening of the flow collecting hopper is coaxially and detachably connected with the top end of the collecting cylinder 3, and a blocking net 4a for blocking large sand and an electric shutter locking mechanism 4b for communicating water flow are arranged at the wide opening of the flow collecting hopper 4;
the manual negative pressure generating pipe fitting 5 is coaxially arranged at the other end of the U-shaped pipe fitting 1, and the negative pressure drawing direction of the manual negative pressure generating pipe fitting 5 is vertically upward;
the liquid level adjusting pipe fitting 6 is coaxially arranged at the top end of the manual negative pressure generating pipe fitting 5 and used for adjusting the distance between the liquid level in the working pipe of the manual negative pressure generating pipe fitting and the bottom end of the U-shaped pipe fitting 1, a contact type liquid level sensor 6a and a one-way valve 6b are coaxially arranged at the working end of the liquid level adjusting pipe fitting 6, the working end of the contact type liquid level sensor 6a faces downwards vertically, the one-way valve 6b faces upwards vertically in the passing direction, and the contact type liquid level sensor 6a is electrically connected with the controller;
the hose 7 is coaxially arranged at the top end of the liquid level adjusting pipe fitting 6, and the top end of the hose 7 is higher than the water quality detection level in a working state;
and the two sides of the T-shaped support 8 are fixedly connected with the top end of the U-shaped pipe fitting 1, and the top end of a vertical rod of the T-shaped support 8 is higher than the water quality detection level in the working state.
Before working, selecting a T-shaped support 8 with proper height according to the depth of the detected water quality, enabling two ends of the T-shaped support to be fixedly connected with two ends of the U-shaped pipe fitting 1, and adjusting the distance between the working end of the liquid level adjusting pipe fitting 6 and the bottom end of the U-shaped pipe fitting 1 according to the volume of the collected water quality;
when the water flow collecting device works, the U-shaped pipe fitting 1 is vertically inserted into water, so that the wide opening of the water collecting hopper 4 horizontally faces to the water flow direction;
the electric shutter locking mechanism 4b is started to open and close the working end of the electric shutter locking mechanism, so that the flow collecting hopper 4 is communicated with water quality, the manual negative pressure generating pipe fitting 5 is started to vertically draw out air at the bottom end of the manual negative pressure generating pipe fitting 5, so that the air at the bottom end of the manual negative pressure generating pipe fitting is discharged outwards through the one-way valve 6b and the hose 7, namely, negative pressure is generated in the U-shaped pipe fitting 1, so that water is sucked into the flow collecting hopper 4, larger sand and stones in the water cannot fall into the flow collecting hopper 4 under the action of the blocking net 4a to influence the collecting effect, the water sequentially passes through the collecting cylinder 3 and the fixed cylinder fitting 2 under the action of gravity and suction force, the filter element 2a is arranged in the fixed cylinder fitting 2, so that silt in the water is filtered and accumulated in the collecting cylinder 3, the filtered water sequentially passes through the U-shaped pipe fitting 1, the manual negative pressure generating pipe fitting 5 and the liquid level, so that the controller controls the working end of the electrodynamic shutter locking mechanism 4b to be locked and closed, thereby completing the collection work;
put forward detection device from the aquatic through T type support 8, therefore the surge drum 3 is dismantled with fixed section of thick bamboo spare 2 and current collection fill 4 and is connected to pull down surge drum 3, collect the stoving with wherein silt and weigh, predetermine the water level through comparing liquid level control pipe fitting 6, can obtain this sample layer quality of water sand content, compare traditional collecting the refilter in the sample layer, this detection device is more convenient, and can adjust the sample volume, and the suitability is stronger.
As shown in fig. 6, the U-shaped pipe member 1 includes:
a three-way manual valve 1 a;
the device comprises a first L-shaped pipe 1b and a second L-shaped pipe 1c, wherein a first sealing flange 1b1 and a second sealing flange 1c1 are respectively and coaxially arranged at two ends of the first L-shaped pipe 1b and the second L-shaped pipe 1c, the first L-shaped pipe 1b and the second L-shaped pipe 1c are fixedly connected with two end structures of a three-way manual valve 1a in a U shape with upward openings through the flanges, and a fixed cylinder part 2 and a manual negative pressure generating pipe part 5 are respectively and coaxially arranged at the top ends of the first L-shaped pipe 1b and the second L-shaped pipe 1 c.
First L type pipe 1b and second L type pipe 1c are respectively through first sealing flange 1b1 and second sealing flange 1c1 and fixed cylinder spare 2 and the coaxial coupling of surge drum 3 to make silt can stop on filter element 2a top under fixed cylinder spare 2 filtering action and action of gravity, and when needs are got rid of L type intraductal water, can make through manual valve 1a of tee bend L type intraductal water flows, is convenient for measure.
As shown in fig. 7, the U-shaped pipe fitting 1 further includes an internal thread fixing cylinder 1d, a third flange 1d1 fixedly connected to the first sealing flange 1b1 at the top end is coaxially disposed at the bottom end of the internal thread fixing cylinder 1d, and the internal diameter of the internal thread fixing cylinder 1d is greater than the internal diameter of the third flange 1d 1; the fixed cylinder 2 further comprises:
the external thread fixing cylinder 2b is coaxially screwed in the internal thread fixing cylinder 1 d;
the inner diameter of the limiting cylinder 2c is sequentially reduced from top to bottom, and the limiting cylinder 2c is coaxially and fixedly arranged at the top end of the external thread fixing cylinder 2 b;
the fixed cylinder 2d is coaxially arranged at the top end of the limiting cylinder 2 c;
the outer diameter of the limiting ring 2e is gradually reduced from top to bottom and is coaxially abutted against the inner periphery of the limiting cylinder 2c, the inner periphery of the limiting ring 2e is provided with an abutting net 2e1 along the radial direction, and the filter element 2a is coaxially abutted against the top end of the abutting net 2e 1.
Internal thread fixed cylinder 1d sets up on first sealed flange 1b1 top through third flange 1d1, thereby make external thread fixed cylinder 2b can coaxial screw-on in internal thread fixed cylinder 1d, and external thread fixed cylinder 2b butt is on third flange 1d1 top, thereby improve sealed effect, fixed cylinder 2d is through spacing section of thick bamboo 2c and the coaxial fixed connection of external thread fixed cylinder 2b, thereby make spacing ring 2e can the joint in spacing section of thick bamboo 2c internal week, make it unable to receive the negative pressure influence to drop down along the axial, and filter core 2a is fixed to be set up on butt net 2e1, thereby prevent that filter core 2a from being inhaled in U type pipe fitting 1 under the negative pressure effect.
As shown in fig. 8, the fixed cylinder 2 further includes a first fixed ring 2f, the first fixed ring 2f is coaxially disposed at the top end of the fixed cylinder 2d, and the outer periphery thereof is uniformly distributed with first openings 2f1 along the radial direction; the bottom end of the collecting cylinder 3 is also coaxially provided with a second fixed ring 3a, the periphery of the second fixed ring 3a is uniformly provided with second openings 3a1 along the radial direction, and the second opening 3a1 is also provided with a hanging and overturning bolt 3b fixedly connected with the first opening 2f 1.
Through twisting the upset bolt 3b that hangs for hang upset bolt 3b and overturn on second opening 3a1 and break away from first opening 2f1, even make first retainer plate 2f can break away from second retainer plate 3a fast, thereby make collecting vessel 3 relatively fixed section of thick bamboo spare 2 can realize quick dismantlement and installation, thereby be convenient for take out silt from fixed section of thick bamboo spare 2 and measure.
As shown in fig. 4, the inner diameter of the collection cylinder 3 gradually decreases from top to bottom.
The inner diameter of the collecting cylinder 3 is gradually reduced from top to bottom, so that sediment is prevented from being accumulated inside the collecting cylinder 3 and being unable to be poured out.
As shown in fig. 4, the collecting hopper 4 is arranged at the top end of the collecting cylinder 3 with the wide mouth obliquely upwards.
The wide mouth of the collecting hopper 4 is obliquely arranged upwards at the top end of the collecting cylinder 3, so that the water body is prevented from directly scouring the wide mouth of the collecting hopper 4, and the blocking effect of the damaged lead of the blocking net 4a is realized.
As shown in fig. 5 and 9, the manual negative pressure generating pipe 5 includes:
the first fixed pipe 5a is coaxially arranged at the top end of the second L-shaped pipe 1 c;
the rotating tripod 5b is coaxially and fixedly arranged at the upper end and the lower end of the first fixed pipe 5 a;
the rotating shaft 5c is coaxially and rotatably arranged on the rotating tripod 5b, a one-way thread piece 5c1 is arranged on the circumferential surface of the rotating shaft 5c, and a rubber sealing piece 5c2 in interference fit with the inner circumference of the first fixed pipe 5a is arranged on the outer circumference of the one-way thread piece 5c 1;
the driven shaft 5d is arranged between the T-shaped bracket 8 and the first fixed pipe 5a in a radial direction along the rotating shaft 5c in a rotating mode, and one end of the driven shaft 5d penetrates through the first fixed pipe 5 a;
a first bevel gear 5e and a second bevel gear 5f, wherein the first bevel gear 5e and the second bevel gear 5f are respectively and coaxially arranged at one end of the rotating shaft 5c and one end of the driven shaft 5d, and the axes of the bevel gears are vertical and are meshed with each other;
the driving shaft 5g is coaxially arranged on one side of a vertical rod of the T-shaped support 8, and a rotating disc 5g1 is coaxially arranged at the top end of the driving shaft 5 g;
the third bevel gear 5i and the fourth bevel gear 5j are coaxially arranged at one ends of the driven shaft 5d and the driving shaft 5g, and the axes of the bevel gears are vertical and are meshed with each other.
The driving shaft 5g is rotated, so that the driving shaft 5g coaxially rotates on the support 5h, the third bevel gear 5i and the fourth bevel gear 5j are mutually meshed, the first bevel gear 5e and the second bevel gear 5f are mutually meshed, so that the driven shaft 5d drives the rotating shaft 5c to coaxially rotate on the rotating tripod 5b, further the one-way thread piece 5c1 coaxially rotates in the first fixing pipe 5a, the rubber sealing piece 5c2 in interference fit with the inner circumference of the first fixing pipe 5a is arranged on the outer circumference of the one-way thread piece 5c1, so that the air at the bottom end of the first fixing pipe 5a is upwards drawn out by the one-way thread piece 5c1 in a rotating state, and the effect of generating negative pressure is realized, thereby being convenient for guiding a water sample to enter the first fixing pipe 5 a.
As shown in fig. 10, the liquid level adjusting pipe member 6 further includes:
the second fixing pipe 6c is coaxially arranged at the top end of the manual negative pressure generating pipe fitting 5, and a first limiting groove 6c1 and a second limiting groove 6c2 are respectively and uniformly distributed on the inner periphery and the outer periphery of the second fixing pipe 6c along the axial direction;
the inner sliding block 6d is coaxially and slidably arranged in the second fixed pipe 6c, first limiting strips 6d1 vertically and slidably matched with the first limiting grooves 6c1 are uniformly distributed on the periphery of the inner sliding block 6d, first containing grooves 6d2 are further formed in the periphery of the first limiting strips 6d1, and the contact type liquid level sensor 6a and the one-way valve 6b are coaxially arranged on the inner sliding block 6 d;
the outer sliding ring 6f is coaxially sleeved on the periphery of the second fixing pipe 6c, a second limiting strip 6f1 vertically matched with the second limiting groove 6c2 in a sliding mode is arranged on the inner periphery of the outer sliding ring 6f, a second placing groove 6f2 is further arranged on the inner periphery of the second limiting strip 6f1, a fixing lug 6f3 is further arranged at the top end of the outer sliding ring 6f, and a fixing nut 6f4 along the axial direction of the second fixing pipe 6c is arranged on one side of the fixing lug 6f 3;
a first magnet 6g and a second magnet 6h, the first magnet 6g and the second magnet 6h being coaxially disposed on the first seating groove 6d2 and the second seating groove 6f2, respectively, the opposite sides of the magnets being attracted to each other;
and a bolt 6i coaxially screwed to the fixing nut 6f4 and abutting on the outer periphery of the second fixing tube 6 c.
The fixing lug 6f3 is used for fixedly arranging a fixing nut 6f 4; when the height of the contact type liquid level sensor 6a from the bottom end of the U-shaped pipe fitting 1 needs to be adjusted, the bolt 6i is unscrewed relative to the fixing nut 6f4, so that the outer sliding ring 6f can coaxially slide on the second fixing pipe 6c, the first magnet 6g and the second magnet 6h are mutually attracted, the magnets are respectively arranged in the first arranging groove 6d2 and the second arranging groove 6f2, the inner sliding block 6d synchronously slides in the second fixing pipe 6c, the contact type liquid level sensor 6a and the one-way valve 6b are driven to slide in the second fixing pipe 6c, the water volume of the contact type liquid level sensor 6a is conveniently adjusted, and the sampling water quality volume is conveniently adjusted; and interior slider 6d and outer sliding ring 6f pass through first spacing strip 6d1 and second spacing strip 6f1 and first spacing groove 6c1 and second spacing groove 6c2 sliding fit respectively to make interior slider 6d and outer sliding ring 6f unable along circumferential direction rotatory, thereby make the slip process more stable.
As shown in fig. 10, the outer periphery of the second fixed pipe 6c is provided with graduations 6c3 for marking the limit capacity at equal intervals in the vertical direction.
The height of the second fixed pipe 6c can be directly adjusted through the scale 6c3, so that the water content in the second fixed pipe is convenient to limit.
As shown in fig. 9, an external thread stopper 6c4 for preventing the inner slider 6d from sliding downward is screwed on the inner circumference bottom end of the second fixing tube 6 c.
Through with the coaxial setting in the inside bottom of second fixed pipe 6c of external screw thread spacing collar 6c4 to can prevent that interior slider 6d from breaking away from second fixed pipe 6c downwards.
The working principle of the invention is as follows:
the device realizes the functions of the invention through the following steps, thereby solving the technical problems provided by the invention:
before work, selecting a T-shaped support 8 with proper height according to the depth of the detected water quality, enabling two ends of the T-shaped support to be fixedly connected with two ends of a U-shaped pipe fitting 1, and adjusting the distance from the working end of a liquid level adjusting pipe fitting 6 to the bottom end of the U-shaped pipe fitting 1 according to the volume of the collected water quality; namely, the bolt 6i is unscrewed, so that the outer sliding ring 6f can vertically slide on the second fixed pipe 6c along the axial direction, and the inner sliding block 6d is driven to coaxially slide in the second fixed pipe 6c through the mutual attraction of the first magnet 6g and the second magnet 6h, so that the limit capacity of the inner sliding block is adjusted according to the scale 6c 3;
step two, when the water flow collecting device works, the U-shaped pipe fitting 1 is vertically inserted into water, so that the wide opening of the water collecting hopper 4 horizontally faces to the water flow direction;
step three, starting the electrodynamic type shutter locking mechanism 4b to open and close the working end of the mechanism, so that the flow collecting hopper 4 is communicated with the water quality;
step four, the driving shaft 5g is rotated, so that the driven shaft 5d drives the rotating shaft 5c to coaxially rotate on the rotating tripod 5b, the coaxially rotating one-way thread piece 5c1 vertically extracts air at the bottom end upwards, the air is discharged outwards through the one-way valve 6b and the hose 7, negative pressure is generated in the U-shaped pipe fitting 1, water is sucked into the collecting hopper 4, large sand in the water cannot fall into the collecting hopper 4 due to the action of the blocking net 4a to affect the collecting effect, the water sequentially passes through the collecting barrel 3 and the fixed barrel part 2 under the action of gravity and suction, the filter element 2a is arranged in the fixed barrel part 2, so that silt in the water is filtered and accumulated in the collecting barrel 3, the filtered water sequentially passes through the U-shaped pipe fitting 1, the manual negative pressure generating pipe fitting 5 and the liquid level adjusting pipe fitting 6 until the working end of the contact type liquid level sensor 6a detects the liquid level in the second fixed pipe 6c, so that the controller controls the working end of the electrodynamic shutter locking mechanism 4b to be locked and closed, thereby completing the collection work;
step five, carry out detection device from the aquatic through T type support 8, therefore the surge drum 3 is detachable with fixed cylinder spare 2 and current collection fill 4 and is connected, thereby pull down the surge drum 3 through twisting external screw thread fixed cylinder 2b and hanging upset bolt 3b, collect stoving weighing with wherein silt, through than the preset water level of liquid level control pipe fitting 6, can obtain this sample layer quality of water sand content, compare traditional collecting the refilter in the sample layer, this detection device is more convenient, and can adjust the sample volume, the suitability is stronger.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a quality of water sand content sampling test device for hydraulic engineering which characterized in that, including:
the U-shaped pipe fitting (1) is provided with an opening which is vertically upward;
the fixed cylinder piece (2) is coaxially arranged at one end of the U-shaped pipe piece (1), and a filter element (2a) for filtering silt is coaxially arranged in the fixed cylinder piece (2);
the collecting cylinder (3) is coaxially and detachably arranged at the top end of the fixed cylinder part (2) and is used for collecting the filtered silt;
the wide opening of the flow collecting hopper (4) is vertical to the axis of the narrow opening, the narrow opening of the flow collecting hopper is coaxially and detachably connected with the top end of the collecting cylinder (3), and a blocking net (4a) for blocking larger sand and an electric shutter locking mechanism (4b) for communicating water flow are arranged at the wide opening of the flow collecting hopper (4);
the manual negative pressure generating pipe fitting (5) is coaxially arranged at the other end of the U-shaped pipe fitting (1), and the negative pressure drawing direction of the manual negative pressure generating pipe fitting (5) is vertically upward;
the liquid level adjusting pipe fitting (6) is coaxially arranged at the top end of the manual negative pressure generating pipe fitting (5) and used for adjusting the distance between the liquid level in a working pipe of the manual negative pressure generating pipe fitting and the bottom end of the U-shaped pipe fitting (1), a contact type liquid level sensor (6a) and a one-way valve (6b) are coaxially arranged at the working end of the liquid level adjusting pipe fitting (6), the working end of the contact type liquid level sensor (6a) faces downwards vertically, the one-way valve (6b) faces upwards vertically in the direction, and the contact type liquid level sensor (6a) is electrically connected with the controller;
the hose (7) is coaxially arranged at the top end of the liquid level adjusting pipe fitting (6), and the top end of the hose (7) is higher than the water quality detection level in a working state;
the two sides of the T-shaped support (8) are fixedly connected with the top end of the U-shaped pipe fitting (1), and the top end of a vertical rod of the T-shaped support (8) is higher than a water quality detection horizontal plane in a working state.
2. A water quality sand content sampling test device for hydraulic engineering according to claim 1, characterized in that U type pipe fitting (1) including:
a three-way manual valve (1 a);
the device comprises a first L-shaped pipe (1b) and a second L-shaped pipe (1c), wherein a first sealing flange (1b1) and a second sealing flange (1c1) are respectively and coaxially arranged at two ends of the first L-shaped pipe (1b) and the second L-shaped pipe (1c), the first L-shaped pipe (1b) and the second L-shaped pipe (1c) are fixedly connected with two end structures of a three-way manual valve (1a) in a U-shaped mode with upward openings through the flanges, and a fixed cylinder part (2) and a manual negative pressure generating pipe fitting (5) are respectively and coaxially arranged at the top ends of the first L-shaped pipe (1b) and the second L-shaped pipe (1 c).
3. The water quality sand content sampling and detecting device for the hydraulic engineering according to claim 1, wherein the U-shaped pipe fitting (1) further comprises an internal thread fixing cylinder (1d), a third flange (1d1) fixedly connected with a first sealing flange (1b1) at the top end is coaxially arranged at the bottom end of the internal thread fixing cylinder (1d), and the inner diameter of the internal thread fixing cylinder (1d) is larger than that of the third flange (1d 1); the fixed cylinder (2) also comprises:
the external thread fixing cylinder (2b), the external thread fixing cylinder (2b) is screwed in the internal thread fixing cylinder (1d) coaxially;
the inner diameter of the limiting cylinder (2c) is sequentially reduced from top to bottom, and the limiting cylinder is coaxially and fixedly arranged at the top end of the external thread fixing cylinder (2 b);
the fixed cylinder (2d) is coaxially arranged at the top end of the limiting cylinder (2 c);
the outer diameter of the limiting ring (2e) is gradually reduced from top to bottom and coaxially abuts against the inner periphery of the limiting cylinder (2c), an abutting net (2e1) is arranged on the inner periphery of the limiting ring (2e) along the radial direction, and the filter element (2a) coaxially abuts against the top end of the abutting net (2e 1).
4. A water quality sand content sampling and detecting device for hydraulic engineering according to claim 1, characterized in that the fixed cylinder member (2) further comprises a first fixed ring (2f), the first fixed ring (2f) is coaxially arranged at the top end of the fixed cylinder (2d), and the periphery of the first fixed ring is uniformly provided with first openings (2f1) along the radial direction; the bottom end of the collecting cylinder (3) is also coaxially provided with a second fixing ring (3a), the periphery of the second fixing ring (3a) is uniformly provided with a second opening (3a1) along the radial direction, and the second opening (3a1) is also provided with a hanging turnover bolt (3b) fixedly connected with the first opening (2f 1).
5. A water quality sand content sampling and detecting device for hydraulic engineering according to claim 1, characterized in that the inner diameter of the collecting cylinder (3) is gradually reduced from top to bottom.
6. A water quality sand content sampling test device for hydraulic engineering according to claim 1, characterized in that wide mouth of the collecting hopper (4) is arranged obliquely upwards at the top end of the collecting cylinder (3).
7. A water quality sand content sampling test device for hydraulic engineering according to claim 1, characterized in that manual negative pressure generation pipe fitting (5) including:
the first fixing pipe (5a) is coaxially arranged at the top end of the second L-shaped pipe (1 c);
the rotating tripod (5b), the rotating tripod (5b) is coaxially and fixedly arranged at the upper end and the lower end of the first fixed pipe (5 a);
the rotating shaft (5c) is coaxially and rotatably arranged on the rotating tripod (5b), a one-way thread piece (5c1) is arranged on the circumferential surface of the rotating shaft (5c), and a rubber sealing piece (5c2) in interference fit with the inner circumference of the first fixed pipe (5a) is arranged on the outer circumference of the one-way thread piece (5c 1);
the driven shaft (5d) is arranged between the T-shaped bracket (8) and the first fixed pipe (5a) in a radial rotating mode along the rotating shaft (5c), and one end of the driven shaft (5d) penetrates through the first fixed pipe (5 a);
the first bevel gear (5e) and the second bevel gear (5f), the first bevel gear (5e) and the second bevel gear (5f) are respectively and coaxially arranged at one end of the rotating shaft (5c) and one end of the driven shaft (5d), and axes of the bevel gears are vertical and are meshed with each other;
the driving shaft (5g) is coaxially arranged on one side of a vertical rod of the T-shaped support (8), a support of the driving shaft (5g) is vertically arranged on the same side of the vertical rod of the T-shaped support, and a turntable (5g1) is coaxially arranged at the top end of the driving shaft (5 g);
the bevel gear mechanism comprises a third bevel gear (5i) and a fourth bevel gear (5j), wherein the third bevel gear (5i) and the fourth bevel gear (5j) are coaxially arranged at one end of a driven shaft (5d) and one end of a driving shaft (5g), and axes of the bevel gears are vertical and are meshed with each other.
8. A water quality sand content sampling test device for hydraulic engineering according to claim 1, characterized in that, liquid level control pipe fitting (6) still including:
the second fixing pipe (6c) is coaxially arranged at the top end of the manual negative pressure generation pipe fitting (5), and a first limiting groove (6c1) and a second limiting groove (6c2) are uniformly distributed on the inner periphery and the outer periphery of the second fixing pipe (6c) along the axial direction respectively;
the inner sliding block (6d) is coaxially and slidably arranged in the second fixed pipe (6c), first limiting strips (6d1) vertically and slidably matched with the first limiting grooves (6c1) are uniformly distributed on the periphery of the inner sliding block (6d), first containing grooves (6d2) are further formed in the periphery of the first limiting strips (6d1), and the contact type liquid level sensor (6a) and the one-way valve (6b) are coaxially arranged on the inner sliding block (6 d);
the outer sliding ring (6f) is coaxially sleeved on the periphery of the second fixing pipe (6c), a second limiting strip (6f1) vertically matched with the second limiting groove (6c2) in a sliding mode is arranged on the inner periphery of the outer sliding ring (6f) in a sliding mode, a second placing groove (6f2) is further formed in the inner periphery of the second limiting strip (6f1), a fixing lug (6f3) is further arranged at the top end of the outer sliding ring (6f), and a fixing nut (6f4) along the axial direction of the second fixing pipe (6c) is arranged on one side of the fixing lug (6f 3);
a first magnet (6g) and a second magnet (6h), the first magnet (6g) and the second magnet (6h) being coaxially disposed on the first seating groove (6d2) and the second seating groove (6f2), respectively, the opposite sides of the magnets being attracted to each other;
and a bolt (6i), wherein the bolt (6i) is coaxially screwed to the fixing nut (6f4) and abuts against the outer periphery of the second fixing pipe (6 c).
9. A water quality sand content sampling and detecting device for hydraulic engineering according to claim 8, characterized in that scales (6c3) for marking limiting capacity are arranged on the periphery of the second fixed pipe (6c) at equal intervals along the vertical direction.
10. A water quality sand content sampling and detecting device for hydraulic engineering according to claim 8, characterized in that an external thread limiting ring (6c4) for preventing the inner slide block (6d) from sliding downwards and falling off is coaxially screwed on the bottom end of the inner periphery of the second fixed pipe (6 c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011202035.5A CN112326349A (en) | 2020-11-02 | 2020-11-02 | A quality of water sand content sampling test device for hydraulic engineering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011202035.5A CN112326349A (en) | 2020-11-02 | 2020-11-02 | A quality of water sand content sampling test device for hydraulic engineering |
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| CN112326349A true CN112326349A (en) | 2021-02-05 |
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| CN202011202035.5A Withdrawn CN112326349A (en) | 2020-11-02 | 2020-11-02 | A quality of water sand content sampling test device for hydraulic engineering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479805A (en) * | 2022-09-21 | 2022-12-16 | 单泽茜 | Water quality sand content sampling detection system and detection method for hydraulic engineering |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479805A (en) * | 2022-09-21 | 2022-12-16 | 单泽茜 | Water quality sand content sampling detection system and detection method for hydraulic engineering |
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Application publication date: 20210205 |