CN218212086U - River course water body detects water intake device - Google Patents

Abstract

The utility model relates to the field of water intake devices, in particular to a river water body detection water intake device, which comprises a sampling bottle, a rod body, a stay cord and a sampler, wherein the sampler is suspended below the head end of the rod body through the stay cord; the sampler is provided with a first end part and a second end part; the lower end of the first end part is provided with a first thread groove, the upper end of the first end part is provided with a water inlet communicated with the first thread groove, and the caliber of the water inlet is gradually increased from top to bottom; a columnar boss is formed at the upper end of the second end part, a first external thread is formed on the periphery of the columnar boss, a containing groove vertically extending into the second end part is formed at the top end of the columnar boss, and the sampling bottle is upwards inserted into the containing groove; the second end part is in threaded connection with the first thread groove through a first external thread; the tail end of the pull rope extends into the water inlet, and the tail end of the pull rope is fixedly connected with a metal ball; this application can be convenient carry out the water intaking to the water of river course water bottom, the operating personnel's of being convenient for use.

Description

River course water body detects water intake device

Technical Field

The utility model relates to a water intake device field specifically relates to a river course water detects water intake device.

Background

With the rapid development of cities and industries, the sewage discharge amount is increasingly aggravated, so that the water pollution and eutrophication of a plurality of ecological riverways are serious, china is particularly important for sewage treatment projects, and therefore, water intake in a certain water area needs to be detected to judge the sewage treatment effect.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a river water body detection water intake device aiming at the problems in the prior art.

For solving the prior art problem, the utility model discloses a technical scheme be:

a river water body detection water intake device comprises a sampling bottle; the sampler is suspended below the head end of the rod body through the pull rope; the sampling bottle is in a test tube shape; the sampler is provided with a first end part and a second end part, and the second end part is positioned below the first end part; the lower end of the first end part is provided with a first thread groove, the upper end of the first end part is provided with a water inlet communicated with the first thread groove, and the caliber of the water inlet is gradually increased from top to bottom; a columnar boss with the diameter consistent with that of the first thread groove is formed at the upper end of the second end part, a first external thread is formed on the periphery of the columnar boss, a containing groove vertically extending into the second end part is formed at the top end of the columnar boss, the shape of the containing groove is matched with that of a sampling bottle, and the sampling bottle is upwards opened and inserted into the containing groove; the second end part is in threaded connection with the first thread groove through a first external thread; in the end of stay cord stretched into the water inlet, metal ball of terminal fixedly connected with of stay cord, metal ball's diameter was greater than the minimum diameter of water inlet, and metal ball's diameter is less than the internal diameter of test tube.

Preferably, the rod body comprises a handheld rod and a plurality of telescopic pipe sleeves with different diameters; the handheld rod is positioned at the tail end of the rod body, the front end of the handheld rod is tubular, and the diameter of the handheld rod from the rear end to the front end is gradually reduced; the diameter of each telescopic pipe sleeve is gradually reduced, and the plurality of telescopic pipe sleeves are sequentially inserted into the front end of the handheld rod from large to small according to the diameters.

Preferably, a winding disc is arranged on one side of the handheld rod, and a first annular groove is formed in the outer peripheral surface of the winding disc; a through groove for a pull rope to penetrate is formed in the bottom of the first ring groove, and a knot is wound at one end, penetrating through the through groove, of the pull rope; a rotating rod coaxial with the winding disc is formed at one end of the winding disc close to the handheld rod, a second through hole coaxial with the rotating rod is formed in the handheld rod, and the rotating rod is inserted into the second through hole to the other side of the handheld rod; one end of the rotating rod far away from the winding disc is fixedly connected with a rocker.

Preferably, a square bump is formed at one position of the rotating rod, which is close to the rocker; one end of the handheld rod, which is close to the rocker, of the second through hole is provided with a square groove matched with the square bump.

Preferably, a round rod which is adaptive to the inner diameter of the telescopic pipe sleeve is inserted into the telescopic pipe sleeve positioned at the head end of the rod body, and a second thread groove is formed at one end of the round rod, which is far away from the hand-held rod; the round rod is connected with a rod head through a second thread groove thread, the head end of the rod head is vertically and downwards formed with a limiting sleeve, the opening of the limiting sleeve is downwards, and the inner diameter of the limiting sleeve is consistent with the outer diameter of the upper end of the first end part; a threaded column is formed at the bottom end of the limiting sleeve and vertically extends downwards; the threaded column is in threaded connection with a columnar check block, and the outer diameter of the columnar check block is matched with the inner diameter of the limiting sleeve; the threaded column is provided with a first through hole for penetrating the pull rope.

Preferably, a second annular groove is formed in the water inlet of the first end portion, and a sealing ring is fixedly mounted in the second annular groove.

Compared with the prior art, the beneficial effect of this application is:

1. the rod body is provided with the sampling bottle, the rod body, the pull rope and the sampler, and the sampler is hung below the head end of the rod body through the pull rope; the sampling bottle is in a test tube shape; the sampler is provided with a first end part and a second end part, and the second end part is positioned below the first end part; the lower end of the first end part is provided with a first thread groove, the upper end of the first end part is provided with a water inlet communicated with the first thread groove, and the caliber of the water inlet is gradually increased from top to bottom; a cylindrical boss with the diameter consistent with that of the first thread groove is formed at the upper end of the second end part, a first external thread is formed on the periphery of the cylindrical boss, a containing groove vertically extending into the second end part is formed at the top end of the cylindrical boss, the shape of the containing groove is matched with that of a sampling bottle, and the sampling bottle is inserted into the containing groove with an upward opening; the second end part is in threaded connection with the first thread groove through a first external thread; the tail end of the pull rope extends into the water inlet, the tail end of the pull rope is fixedly connected with a metal ball, the diameter of the metal ball is larger than the minimum diameter of the water inlet, and the diameter of the metal ball is smaller than the inner diameter of the test tube; when operating personnel takes a sample to the water, through holding the pole body, make the head end of the pole body be certain inclination downwards gradually, thereby make the sampler slowly sink in aqueous, this moment because the stay cord is drawing the metal ball, can make the metal ball plug up the water inlet all the time, when the second end butt water bottom of sampler, the metal ball sinks once more and can make the delivery port open, the rivers of water bottom just can flow into to the sample bottle from the water inlet, at this moment, a period of stewing, treat that the water in the sample bottle is filled, lift on by operating personnel through holding the pole body again, thereby make the stay cord tighten and drive the metal ball once more and plug up the inlet opening, until pulling out the sampler to the surface of water top, after the sample is accomplished, have operating personnel rotatory second end can leave first end and second end, thereby take out the sample bottle in the second end, collecting the water bottom the sample bottle by operating personnel is used for detecting.

2. The rod body is provided with the handheld rod and the plurality of telescopic pipe sleeves with different diameters; the handheld rod is positioned at the tail end of the rod body, the front end of the handheld rod is tubular, and the diameter of the handheld rod from the rear end to the front end is gradually reduced; the diameter of each telescopic pipe sleeve is gradually reduced, and the telescopic pipe sleeves are sequentially inserted into the front end of the handheld rod from large to small according to the diameters; the rod body can be stretched through the telescopic pipe sleeves, so that the lengths of the head end and the tail end of the rod body can be adjusted, an operator only needs to stand on the shore, and water bodies at different positions can be sampled through adjusting the length of the rod body.

3. According to the winding device, the winding disc is arranged on one side of the handheld rod, and the first annular groove is formed in the outer peripheral surface of the winding disc; a through groove for penetrating a pull rope is formed in the bottom of the first ring groove, and a knot is wound at one end of the pull rope penetrating through the through groove; a rotating rod coaxial with the winding disc is formed at one end of the winding disc close to the handheld rod, a second through hole coaxial with the rotating rod is formed in the handheld rod, and the rotating rod is inserted into the second through hole to the other side of the handheld rod; the one end fixedly connected with rocker of rolling dish is kept away from to the dwang, can prevent through the knot that the stay cord from leading to the inslot roll-off, when operating personnel rotated the rocker, can drive the rolling dish and rotate, the rotation of rolling dish can make the stay cord encircle in first annular, thereby make the one end of stay cord fixedly connected with metal ball upwards tighten up, thereby it rises to drive the sampler, when needs sample, the reversal rotation rocker, can make the sampler descend, can control the degree of depth that the sampler descends through the operating personnel rocker, make things convenient for the lift of operating personnel control sampler more.

4. According to the rocker arm, a square bump is formed at one position, close to the rocker arm, of the rotating rod; the square groove that suits with square convex block is seted up to the one end that handheld pole is close to the rocker at the second through-hole, when need not rotating the rocker, can make square convex block insert to the square groove in through the position of lateral shifting dwang, the rocker can't rotate this moment, can fix the rigidity of sampler, do not need operating personnel to hold the rocker always, increase operating personnel's the simple operation nature, when needs go up and down to the sampler, through the position of lateral shifting dwang, make square convex block leave the square groove completely and can rotate the rocker and adjust the position of sampler.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a side view of the present application;

FIG. 3 isbase:Sub>A cross-sectional view taken along section A-A of FIG. 2 of the present application;

FIG. 4 is an enlarged view of a portion of the present application at B of FIG. 3;

FIG. 5 is a front view of the first end of the present application;

FIG. 6 is a cross-sectional view taken along section C-C of FIG. 5 of the present application;

FIG. 7 is an exploded perspective view of the present application;

FIG. 8 is a perspective view of a take-up reel and rocker of the present application;

the reference numbers in the figures are:

1-sampling a bottle;

2-a rod body; 2 a-a hand-held lever; 2a 1-second via; 2a 2-square groove; 2 b-a telescopic pipe sleeve; 2 c-round bar; 2c 1-a second thread groove; 2 d-pole head; 2d 1-a stop collar; 2d 2-threaded post; 2d2 a-first via; 2d 3-column block;

3-pulling a rope; 3 a-a metal ball; 3 b-knot tying;

4-a sampler; 4 a-a first end portion; 4a 1-first thread groove; 4a 2-water inlet; 4a2 a-second ring groove; 4a2 b-sealing ring; 4 b-a second end; 4b 1-a columnar boss; 4b1 a-first external thread; 4b 2-accommodating grooves;

5, winding a disc; 5 a-a first ring groove; 5 b-a through groove; 5 c-rotating rod; 5c 1-square bumps;

6-rocker.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1-8, the present application provides:

a river water body detection water taking device comprises a sampling bottle 1; also comprises a rod body 2, a pull rope 3 and a sampler 4, wherein the sampler 4 is hung below the head end of the rod body 2 through the pull rope 3; the sampling bottle 1 is in a test tube shape; the sampler 4 is provided with a first end 4a and a second end 4b, the second end 4b being located below the first end 4 a; the lower end of the first end part 4a is provided with a first thread groove 4a1, the upper end of the first end part 4a is provided with a water inlet 4a2 communicated with the first thread groove 4a1, and the caliber of the water inlet 4a2 is gradually increased from top to bottom; a cylindrical boss 4b1 with the diameter consistent with that of the first thread groove 4a1 is formed at the upper end of the second end part 4b, a first external thread 4b1a is formed on the periphery of the cylindrical boss 4b1, an accommodating groove 4b2 vertically extending into the second end part 4b is formed at the top end of the cylindrical boss 4b1, the shape of the accommodating groove 4b2 is matched with that of the sampling bottle 1, and the sampling bottle 1 is inserted into the accommodating groove 4b2 with an upward opening; the second end portion 4b is screwed in the first thread groove 4a1 by the first external thread 4b1 a; the tail end of the pull rope 3 extends into the water inlet 4a2, the tail end of the pull rope 3 is fixedly connected with a metal ball 3a, the diameter of the metal ball 3a is larger than the minimum diameter of the water inlet 4a2, and the diameter of the metal ball 3a is smaller than the inner diameter of the test tube.

Based on the above embodiments, the technical problem to be solved by the present application is how to adopt the water body at the bottom of the water body. Therefore, the sampler 4 is hung below the head end of the rod body 2 through the pull rope 3 by arranging the sampling bottle 1, the rod body 2, the pull rope 3 and the sampler 4; the sampling bottle 1 is in a test tube shape; the sampler 4 is provided with a first end 4a and a second end 4b, the second end 4b being located below the first end 4 a; the lower end of the first end part 4a is provided with a first thread groove 4a1, the upper end of the first end part 4a is provided with a water inlet 4a2 communicated with the first thread groove 4a1, and the caliber of the water inlet 4a2 is gradually increased from top to bottom; a cylindrical boss 4b1 with the diameter consistent with that of the first thread groove 4a1 is formed at the upper end of the second end portion 4b, a first external thread 4b1a is formed on the periphery of the cylindrical boss 4b1, an accommodating groove 4b2 vertically extending into the second end portion 4b is formed at the top end of the cylindrical boss 4b1, the shape of the accommodating groove 4b2 is matched with that of the sampling bottle 1, and the sampling bottle 1 is inserted into the accommodating groove 4b2 with an upward opening; the second end portion 4b is screwed in the first thread groove 4a1 by the first external thread 4b1 a; the tail end of the pull rope 3 extends into the water inlet 4a2, the tail end of the pull rope 3 is fixedly connected with a metal ball 3a, the diameter of the metal ball 3a is larger than the minimum diameter of the water inlet 4a2, and the diameter of the metal ball 3a is smaller than the inner diameter of the test tube; when an operator samples a water body, the rod body 2 is held, the head end of the rod body 2 gradually and downwards forms a certain inclination angle, the sampler 4 slowly sinks in the water body, at the moment, the metal ball 3a is pulled by the pull rope 3, the water inlet 4a2 can be always blocked by the metal ball 3a, when the second end part 4b of the sampler 4 abuts against the bottom of the water body, the metal ball 3a sinks again, so that the water outlet can be opened, the water flow at the bottom of the water body can flow into the sampling bottle 1 from the water inlet 4a2, at the moment, the water in the sampling bottle 1 is kept stand for a certain time, the operator holds the rod body 2 to lift the rod body again, the pull rope 3 is tightened to drive the water inlet hole of the metal ball 3a again, until the sampler 4 is pulled out to the upper part of the water surface, after sampling is completed, the operator rotates the second end part 4b to enable the first end part 4a and the second end part 4b to be separated from the second end part 4b, and then the sampling bottle 1 in the second end part 4b is taken out, and the water body at the bottom of the water body in the sampling bottle 1 in the operating personnel is collected for detection.

Further, as shown in fig. 1, 3 and 7:

the rod body 2 comprises a handheld rod 2a and a plurality of telescopic pipe sleeves 2b with different diameters; the handheld rod 2a is positioned at the tail end of the rod body 2, the front end of the handheld rod 2a is tubular, and the diameter of the handheld rod 2a from the rear end to the front end is gradually reduced; the diameter of each telescopic pipe sleeve 2b is also gradually reduced, and the plurality of telescopic pipe sleeves 2b are sequentially inserted into the front end of the handheld rod 2a from large to small according to the diameters.

Based on the above embodiments, the present application provides a rod body 2 with a hand-held rod 2a and a plurality of telescopic pipe sleeves 2b with different diameters; the handheld rod 2a is positioned at the tail end of the rod body 2, the front end of the handheld rod 2a is tubular, and the diameter of the handheld rod 2a from the rear end to the front end is gradually reduced; the diameter of each telescopic pipe sleeve 2b is gradually reduced, and the plurality of telescopic pipe sleeves 2b are sequentially inserted into the front end of the handheld rod 2a from large to small according to the diameters; the rod body 2 can be extended and retracted through a plurality of extension pipe sleeves 2b, so that the lengths of the head and the tail of the rod body 2 can be adjusted, an operator only needs to stand on the shore, and the water bodies at different positions can be sampled through adjusting the length of the rod body 2.

Further, as shown in fig. 1, 7 and 8:

a winding disc 5 is arranged on one side of the handheld rod 2a, and a first annular groove 5a is formed in the outer peripheral surface of the winding disc 5; a through groove 5b for penetrating the pull rope 3 is formed in the bottom of the first ring groove 5a, and a knot 3b is wound at one end of the pull rope 3 penetrating through the through groove 5 b; a rotating rod 5c coaxial with the winding disc 5 is formed at one end of the winding disc 5 close to the handheld rod 2a, a second through hole 2a1 coaxial with the rotating rod 5c is formed in the handheld rod 2a, and the rotating rod 5c is inserted into the second through hole 2a1 to the other side of the handheld rod 2 a; one end of the rotating rod 5c far away from the winding disc 5 is fixedly connected with a rocker 6.

Based on the above embodiment, the technical problem to be solved by the present application is how to conveniently control the descending depth of the sampler 4 in water. Therefore, the winding disc 5 is arranged on one side of the handheld rod 2a, and the first annular groove 5a is formed in the outer peripheral surface of the winding disc 5; a through groove 5b for penetrating the pull rope 3 is formed in the bottom of the first ring groove 5a, and a knot 3b is wound at one end of the pull rope 3 penetrating through the through groove 5 b; a rotating rod 5c coaxial with the winding disc 5 is formed at one end of the winding disc 5 close to the handheld rod 2a, a second through hole 2a1 coaxial with the rotating rod 5c is formed in the handheld rod 2a, and the rotating rod 5c is inserted into the second through hole 2a1 to the other side of the handheld rod 2 a; dwang 5c keeps away from one end fixedly connected with rocker 6 of rolling dish 5, can prevent through knot 3b that stay cord 3 from leading to roll-off in the groove 5b, when operating personnel rotated rocker 6, can drive rolling dish 5 and rotate, the rotation of rolling dish 5 can make stay cord 3 encircle in first annular 5a, thereby make 3 fixedly connected with metal ball 3 a's of stay cord one end upwards tighten up, thereby it rises to drive sampler 4, when needs sample, reverse rotation rocker 6, can make sampler 4 descend, can control the degree of depth that sampler 4 descends through operating personnel rocker 6, make things convenient for operating personnel to control the lift of sampler 4 more.

Further, as shown in fig. 1, 7 and 8:

a square bump 5c1 is formed at one position of the rotating rod 5c close to the rocker 6; one end of the hand-held rod 2a, which is close to the rocker 6, of the second through hole 2a1 is provided with a square groove 2a2 matched with the square bump 5c 1.

Based on the above embodiment, the square bump 5c1 is formed at a position of the rotating rod 5c close to the rocker 6; hand-held rod 2a is offered the square groove 2a2 that suits with square convex block 5c1 in the one end that second through-hole 2a1 is close to rocker 6, when not needing to rotate rocker 6, can make square convex block 5c1 insert to square groove 2a2 in through lateral shifting dwang 5 c's position, rocker 6 is unable to rotate this moment, can live sampler 4's rigidity, do not need operating personnel to hold rocker 6 always, increase operating personnel's simple operation, when needs go up and down sampler 4, through lateral shifting dwang 5 c's position, make square convex block 5c1 leave square groove 2a2 completely and can rotate rocker 6 and adjust sampler 4's position.

Further, as shown in fig. 2-7:

a round bar 2c which is adaptive to the inner diameter of the telescopic pipe sleeve 2b positioned at the head end of the rod body 2 is inserted in the telescopic pipe sleeve 2b, and a second thread groove 2c1 is arranged at one end of the round bar 2c far away from the hand-held rod 2 a; the round rod 2c is connected with a rod head 2d through a second thread groove 2c1 in a threaded manner, the head end of the rod head 2d is vertically and downwards formed with a limiting sleeve 2d1, the opening of the limiting sleeve 2d1 is downwards, and the inner diameter of the limiting sleeve 2d1 is consistent with the outer diameter of the upper end of the first end part 4 a; a threaded column 2d2 is formed at the bottom end of the limiting sleeve 2d1, and the threaded column 2d2 vertically extends downwards; the threaded column 2d2 is in threaded connection with a columnar stop block 2d3, and the outer diameter of the columnar stop block 2d3 is matched with the inner diameter of the limiting sleeve 2d 1; the threaded column 2d2 is provided with a first through hole 2d2a for the pull rope 3 to pass through.

Based on the above embodiment, in the present application, a round rod 2c with an inner diameter adapted to the telescopic pipe sleeve 2b is inserted into the telescopic pipe sleeve 2b at the head end of the rod body 2, and a second thread groove 2c1 is formed at one end of the round rod 2c far away from the hand-held rod 2 a; the round rod 2c is connected with a rod head 2d through a second thread groove 2c1 in a threaded manner, the head end of the rod head 2d is vertically and downwards formed with a limiting sleeve 2d1, the opening of the limiting sleeve 2d1 is downwards, and the inner diameter of the limiting sleeve 2d1 is consistent with the outer diameter of the upper end of the first end part 4 a; a threaded column 2d2 is formed at the bottom end of the limiting sleeve 2d1, and the threaded column 2d2 vertically extends downwards; the threaded column 2d2 is in threaded connection with a columnar stop block 2d3, and the outer diameter of the columnar stop block 2d3 is adapted to the inner diameter of the limiting sleeve 2d 1; offer the first through-hole 2d2a that is used for wearing to establish stay cord 3 on the screw thread post 2d2, after operating personnel finished taking a sample in sampling bottle 1, rise sampler 4 gradually through rotating rocker 6, when sampler 4 leaves the hot water face, operating personnel will continue to tighten up stay cord 3, the upper end butt until first end 4a is flexible to the pole body 2 when the lower extreme of dog, can prevent that stay cord 3 from not tightening up direct shrink pole body 2 and can cause sampler 4 to rock under the effect of stay cord 3, can cause the sample water spill in sampling bottle 1.

Further, as shown in fig. 1, 4 and 6:

a second annular groove 4a2a is formed at the water inlet 4a2 of the first end portion 4a, and a sealing ring 4a2b is fixedly installed in the second annular groove 4a 2a.

Based on above-mentioned embodiment, second ring groove 4a2a has been seted up through the water inlet 4a2 department at first end 4a to this application, and second ring groove 4a2a internal fixed mounting has a sealing washer 4a2b, can prevent to promote the in-process of sampler 4, and metal ball 3a and inner wall laminating do not closely cause the water in top water area to flow into in sampling bottle 1, cause the sample detection to have the error.

The above examples are merely illustrative of one or more embodiments of the present invention, and the description thereof is more specific and detailed, but not intended to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (6)

1. A river water body detection water intake device comprises a sampling bottle (1);

it is characterized in that the rod also comprises a rod body (2), a pull rope (3) and a sampler (4), wherein the sampler (4) is hung below the head end of the rod body (2) through the pull rope (3);

the sampling bottle (1) is in a test tube shape;

the sampler (4) is provided with a first end (4 a) and a second end (4 b), the second end (4 b) being located below the first end (4 a);

the lower end of the first end part (4 a) is provided with a first thread groove (4 a 1), the upper end of the first end part (4 a) is provided with a water inlet (4 a 2) communicated with the first thread groove (4 a 1), and the caliber of the water inlet (4 a 2) is gradually increased from top to bottom;

a cylindrical boss (4 b 1) with the diameter consistent with that of the first thread groove (4 a 1) is formed at the upper end of the second end part (4 b), a first external thread (4 b1 a) is formed on the periphery of the cylindrical boss (4 b 1), an accommodating groove (4 b 2) vertically extending into the second end part (4 b) is formed at the top end of the cylindrical boss (4 b 1), the shape of the accommodating groove (4 b 2) is matched with that of the sampling bottle (1), and the sampling bottle (1) is upwards opened and inserted into the accommodating groove (4 b 2);

the second end part (4 b) is in threaded connection in the first thread groove (4 a 1) through a first external thread (4 b1 a);

the tail end of the pull rope (3) extends into the water inlet (4 a 2), the tail end of the pull rope (3) is fixedly connected with a metal ball (3 a), the diameter of the metal ball (3 a) is larger than the minimum diameter of the water inlet (4 a 2), and the diameter of the metal ball (3 a) is smaller than the inner diameter of the test tube.

2. The river water body detection water intake device according to claim 1, wherein the rod body (2) comprises a handheld rod (2 a) and a plurality of telescopic pipe sleeves (2 b) with different diameters;

the handheld rod (2 a) is positioned at the tail end of the rod body (2), the front end of the handheld rod (2 a) is tubular, and the diameter of the handheld rod (2 a) from the rear end to the front end is gradually reduced;

the diameter of each telescopic pipe sleeve (2 b) is gradually reduced, and the plurality of telescopic pipe sleeves (2 b) are sequentially inserted into the front end of the handheld rod (2 a) from large to small according to the diameters.

3. The river channel water body detection water taking device according to claim 2, wherein a winding disc (5) is arranged on one side of the handheld rod (2 a), and a first annular groove (5 a) is formed in the outer peripheral surface of the winding disc (5);

a through groove (5 b) for penetrating the pull rope (3) is formed in the bottom of the first ring groove (5 a), and a knot (3 b) is wound at one end of the pull rope (3) penetrating through the through groove (5 b);

a rotating rod (5 c) coaxial with the winding disc (5) is formed at one end of the winding disc (5) close to the handheld rod (2 a), a second through hole (2 a 1) coaxial with the rotating rod (5 c) is formed in the handheld rod (2 a), and the rotating rod (5 c) is inserted into the second through hole (2 a 1) to the other side of the handheld rod (2 a);

one end of the rotating rod (5 c) far away from the winding disc (5) is fixedly connected with a rocker (6).

4. The river water body detection water taking device according to claim 3, wherein a square bump (5 c 1) is formed at one position of the rotating rod (5 c) close to the rocker (6);

one end of the handheld rod (2 a) close to the rocker (6) in the second through hole (2 a 1) is provided with a square groove (2 a 2) matched with the square bump (5 c 1).

5. The river water body detection water taking device according to claim 3, wherein a round bar (2 c) with the inner diameter matched with that of the telescopic pipe sleeve (2 b) at the head end of the rod body (2) is inserted in the telescopic pipe sleeve (2 b), and a second thread groove (2 c 1) is formed in one end, away from the handheld rod (2 a), of the round bar (2 c);

the round rod (2 c) is in threaded connection with a rod head (2 d) through a second thread groove (2 c 1), the head end of the rod head (2 d) is vertically and downwards formed with a limiting sleeve (2 d 1), the opening of the limiting sleeve (2 d 1) is downwards, and the inner diameter of the limiting sleeve (2 d 1) is consistent with the outer diameter of the upper end of the first end part (4 a);

a threaded column (2 d 2) is formed at the bottom end of the limiting sleeve (2 d 1), and the threaded column (2 d 2) vertically extends downwards;

the threaded column (2 d 2) is in threaded connection with a columnar stop block (2 d 3), and the outer diameter of the columnar stop block (2 d 3) is matched with the inner diameter of the limiting sleeve (2 d 1);

the threaded column (2 d 2) is provided with a first through hole (2 d2 a) for the pull rope (3) to penetrate through.

6. The river water body detection water taking device according to claim 1, wherein a second ring groove (4 a2 a) is formed at the water inlet (4 a 2) of the first end portion (4 a), and a sealing ring (4 a2 b) is fixedly installed in the second ring groove (4 a2 a).

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