Muddy water sampling device for sewage detection

Abstract

The invention relates to the technical field of sewage detection, in particular to a muddy water sampling device for sewage detection. Comprising a sampling shell, the sample storage shell is arranged on the sampling shell; the transfer shell is arranged in the sampling shell; the adjusting part is arranged on the sample storage shell; the adjusting part comprises a movable part and a transmission rod; the movable part and the transmission rod are both arranged in the sampling shell, the movable part is fixedly connected with the transfer shell, the transmission rod is fixedly connected with the movable part, and the movable part and the transmission rod are controlled to move according to the deflection amount of the device so as to adjust the relative position of the sampling shell and the transfer shell. Through cooperation of the sample storage shell and the transfer shell, if deflection occurs during sampling, the position of the transfer shell is changed, so that excessive sampling of hierarchical river water caused by deflection during sampling of different hierarchical river water in a river channel is prevented, the reference value of the sampled water is improved, and meanwhile, the sampling result is more suitable for the actual condition of the river water.

Description

Technical Field

[0001] The invention relates to the technical field of sewage detection, and in particular to a muddy water sampling device for sewage detection. Background Art

[0002] Water quality monitoring is one of the important links in environmental protection. Through water quality monitoring, the degree of water pollution can be evaluated, the source of pollutants can be understood, and a basis can be provided for formulating effective pollution prevention and control measures. Although the existing columnar sampler can sample river water and soil between different layers in the river channel, thereby investigating the pollution between different layers, during the sampling process, the sampling device may be affected by the impact of the river and may be deflected, which causes the sampling point of the device to move upward. If the upward movement of the sampling point per unit time is less than the downward movement of the device per unit time (that is, the downward movement speed of the sampling point slows down), it will cause excessive sampling of some layers; if the upward movement of the sampling point per unit time is equal to the downward movement of the device per unit time (that is, the sampling point stops moving), it will cause excessive sampling of a single layer; if the upward movement of the sampling point per unit time is greater than the downward movement of the device per unit time (that is, the sampling point changes from downward movement to upward movement), it will cause the sampled water of different layers to be distributed in reverse; the above situations will affect the reference value of the sampled water, causing the results to deviate from the actual situation of the river water, and errors in the judgment of river pollution. Summary of the invention

[0003] In order to overcome the problem that the device is deflected during sampling, which affects the reference value of the sampled water, the present invention provides a muddy water sampling device for sewage detection.

[0004] The technical solution is: a muddy water sampling device for sewage detection, comprising: Sampling shells; A sample storage shell is arranged in the sampling shell, and the sample storage shell is used to store sampled water; A transfer shell is disposed in the sampling shell and is located above the sample storage shell. The sample storage shell and the transfer shell are connected through a telescopic pipe. The transfer shell is used to adjust the sampling position. An adjusting component is arranged on the sample storage shell, and is used to adjust the position of the transfer shell in the sampling shell; The adjusting component comprises: a movable part and a transmission rod; The movable member and the transmission rod are both arranged in the sampling shell, the movable member is fixedly connected to the intermediate transfer shell, the transmission rod is fixedly connected to the movable member, the movable member and the transmission rod are both located above the sample storage shell, and the movable member and the transmission rod are controlled to move according to the deflection amount of the device so as to adjust the relative position of the sampling shell and the intermediate transfer shell; A leveling assembly, disposed in the sampling housing, for maintaining the horizontal state of the transmission rod; The trigger component is arranged on the sampling shell and is used for controlling when to sample water.

[0005] Preferably, the leveling assembly comprises: A ball joint ring, ball-jointed in the sampling shell, the ball joint ring is located above the transfer shell, a first fixed shell is fixed in the ball joint ring, a transmission medium is arranged in the first fixed shell, and is used to keep the ball joint ring and the first fixed shell in a horizontal state when the sampling shell is deflected; A monitoring component is arranged on the first fixed shell and is used for monitoring the deflection amount of the sampling shell.

[0006] Preferably, the monitoring component comprises: A monitoring rod, slidably connected to the first fixed shell, the monitoring rod and the sampling shell are squeezed together to monitor the deflection of the sampling shell; The piston plate is slidably connected in the first fixed shell, a spring is arranged between the first fixed shell and the piston plate, the first fixed shell is slidably connected to the transmission rod, the monitoring rod is fixedly connected to the piston plate, and the piston plate is located above the transmission rod.

[0007] Preferably, the trigger component comprises: A flow partition is rotatably connected to the sampling shell, a torsion spring is arranged between the flow partition and the sampling shell, a flow hole is arranged on the sampling shell, the flow partition cooperates with the flow hole for blocking, a connecting port is arranged on the transfer shell, the connecting port is connected with the connecting port on the transfer shell, and is used to connect the outer side of the sampling shell with the inner side of the transfer shell; A first limiting frame is slidably connected to the sampling shell, a spring is provided between the first limiting frame and the sampling shell, and the first limiting frame is limitedly matched with the flow partition plate to control the state of the flow partition plate; The depth-fixing component is arranged on the sampling shell and is used for releasing the limiting state of the flow barrier by the first limiting frame at a specified underwater depth.

[0008] Preferably, the depth-setting component comprises: A second fixed shell is fixedly connected to the sampling shell, the second fixed shell is slidably connected to a first piston rod, the first piston rod is fixedly connected to the first limiting frame, and compressible gas is injected between the second fixed shell and the first piston rod for adjusting the limiting state of the first limiting frame and the flow isolation plate according to the pressure of different water depths.

[0009] Preferably, a mud sampling assembly is further included, which is arranged in the sampling shell and is used to sample the bottom mud. The mud sampling assembly includes: A motor is fixedly connected in the sampling shell, wherein the motor is a double-shaft motor, a connecting rod is fixedly connected to one output shaft of the motor, a sampling rod is fixedly connected to the side of the connecting rod away from the motor, and a first spiral plate is fixedly connected to the periphery of the sampling rod; A spline rod, spline-connected to the sampling rod, a drill bit is fixedly connected to the spline rod, a second spiral plate is fixedly connected to the outer periphery of the drill bit, and the first spiral plate and the second spiral plate are spliced ​​to transport the drilled soil; A debris removal component is arranged in the sampling shell and is used to prevent the medium in the sampling shell from affecting the quality of the sampled soil; A blocking component, disposed in the sampling shell, for blocking the sampling shell; A transmission component, disposed on the motor, for synchronously controlling the position state of the sample storage shell; A blocking component is arranged on the transfer shell and is used to control the connection state between the sample storage shell and the transfer shell.

[0010] Preferably, the debris removal component comprises: A sliding ring is spline-connected in the sampling shell, the sliding ring is extruded and matched with the first spiral plate, a blocking plate is fixed in the sampling shell, a through hole is provided on the blocking plate, a through hole is provided on the portion of the sampling shell located on the upper side of the blocking plate, the blocking plate is rotatably connected to the connecting rod, and the blocking plate is in contact and matched with the sliding ring to prevent the medium in the sampling shell from affecting the quality of the sampled soil.

[0011] Preferably, the blocking component comprises: A fixing ring is fixedly connected in the sampling shell, the sampling rod is fixedly connected to a fixing frame, the fixing frame is fixedly connected to a blocking airbag, and the first spiral plate and the fixing ring are both in contact with and cooperate with the blocking airbag; The second limiting frame is spline-connected to the sampling rod, the second limiting frame is limitedly matched with the sealing airbag, the spline rod is limitedly matched with the second limiting frame, the sealing airbag is located between the fixing frame and the second limiting frame, and is used to seal the soil sample after sampling is completed.

[0012] Preferably, the transmission component comprises: An extrusion rod, the extrusion rod is fixedly connected to the output shaft on the other side of the motor, a slide groove is arranged on the extrusion rod, a sliding frame is spline-connected in the sampling shell, the sliding frame is extrusion-matched with the sample storage shell, a convex rod is arranged on the sliding frame, and the convex rod on the sliding frame is extrusion-matched with the slide groove on the extrusion rod; The one-way plate is rotatably connected to the extrusion rod. The one-way plate is extruded and matched with the protruding rod on the sliding frame. The one-way plate can only rotate in one direction.

[0013] Preferably, the blocking component comprises: A third fixed shell is fixedly connected to the transfer shell, a transmission medium is filled in the third fixed shell, a second piston rod is slidably connected to the third fixed shell, and the second piston rod is fixedly connected to the sample storage shell; A closing plate is slidably connected to the transfer shell, and the third fixed shell is slidably connected to a third piston rod, and the third piston rod is fixedly connected to the closing plate. The closing plate is used to seal the telescopic pipe between the transfer shell and the sample storage shell.

[0014] The beneficial effects are as follows: the present invention cooperates with the sample storage shell and the transfer shell. If there is a deviation during sampling, the position of the transfer shell is changed, thereby preventing excessive sampling of river water at different levels in the river channel due to the deviation, thereby improving the reference value of the sampled water and making the sampling result more in line with the actual situation of the river water; the second fixed shell cooperates with the first piston rod to control the start of the sampling of the device according to the underwater pressure (i.e., the diving depth of the device), thereby improving the applicability of the device in different river channels; the first spiral plate cooperates with the second spiral plate to guide the soil upward during soil sampling, thereby achieving the synchronous upward movement of the soil during the downward movement of the device, thereby improving the efficiency of soil sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the internal structure of the sampling shell of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the movable part and the transmission rod of the present invention; Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle; Figure 5 It is a three-dimensional structural cross-sectional view of the flow partition and the first limiting frame of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the third fixed shell and the second piston rod of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the closing plate and the third piston rod of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the drill bit and the second spiral plate of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the blocking airbag and the second limiting frame of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the extrusion rod and the sliding frame of the present invention.

[0016] Figure numbers: 1, sampling shell, 2, sample storage shell, 3, transfer shell, 4, movable part, 5, transmission rod, 6, ball joint ring, 7, first fixed shell, 8, monitoring rod, 9, piston plate, 10, flow isolation plate, 11, flow hole, 12, first limit frame, 13, second fixed shell, 14, first piston rod, 15, third fixed shell, 16, second piston rod, 17, closing plate, 18, third piston rod, 19, motor, 20, connecting rod, 21, sampling rod, 22, first spiral plate, 23, spline rod, 24, drill bit, 25, second spiral plate, 26, sliding ring, 27, blocking plate, 28, fixed ring, 29, fixed frame, 30, blocking airbag, 31, second limit frame, 32, extrusion rod, 33, sliding frame, 34, one-way plate. DETAILED DESCRIPTION

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0018] Research has shown that when the existing device samples water between different layers in the river, the sampling device may be deviated due to the impact of the river, which causes the sampling point of the device to move upward. If the upward movement of the sampling point per unit time is less than the downward movement of the device per unit time (that is, the downward movement speed of the sampling point slows down), it will lead to excessive sampling of some layers; if the upward movement of the sampling point per unit time is equal to the downward movement of the device per unit time (that is, the sampling point stops moving), it will lead to excessive sampling of a single layer; if the upward movement of the sampling point per unit time is greater than the downward movement of the device per unit time (that is, the sampling point changes from moving downward to moving upward), it will cause the sampled water at different layers to be distributed in reverse; the above situations will affect the reference value of the sampled water, cause the results to deviate from the actual situation of the river water, and lead to errors in the judgment of river pollution.

[0019] Embodiment 1: A muddy water sampling device for sewage detection, such as Figure 1-Figure 3As shown, there is a sampling shell 1; a sample storage shell 2, which is arranged in the sampling shell 1, and the sample storage shell 2 is used to store sampled water; a transfer shell 3, which is arranged in the sampling shell 1 and is located above the sample storage shell 2, the sample storage shell 2 and the transfer shell 3 are connected by a telescopic pipe, and the transfer shell 3 is used to adjust the sampling position; an adjusting component, which is arranged on the sample storage shell 2, and the adjusting component is used to adjust the position of the transfer shell 3 in the sampling shell 1; the adjusting component includes: a movable part 4 and a transmission rod 5; the movable part 4 and the transmission rod 5 are both arranged in the sampling shell 1, the movable part 4 is fixedly connected to the transfer shell 3, the transmission rod 5 is fixedly connected to the movable part 4, and the movable part 4 and the transmission rod 5 are both located above the sample storage shell 2, and the movement of the movable part 4 and the transmission rod 5 is controlled according to the deflection amount of the device to adjust the relative position of the sampling shell 1 and the transfer shell 3; a leveling component, which is arranged in the sampling shell 1, is used to maintain the horizontal state of the transmission rod 5; a trigger component, which is arranged on the sampling shell 1, is used to control when to sample water.

[0020] In the above scheme, it is intended to solve the problem in the prior art that the sampling port is deflected due to the impact of water flow during water sampling, which affects the quality of the water sample, so as to improve the reliability of the water sample. The muddy water sampling device of this embodiment includes a sampling shell 1, which is made of high-strength steel to ensure the stability of the entire device during sampling. The outer side of the sampling shell 1 is coated with an anti-corrosion coating to increase the service life of the sampling shell 1, a sample storage shell 2, which is used to store sampled water, a transfer shell 3 for adjusting the sampling position, and a movable part 4 made of a deformable material so that the transfer shell 3 can still ensure the transmission between the transmission rod 5 and the movable part 4 when it is tilted.

[0021] like Figure 1-Figure 3 As shown, the leveling assembly includes: a ball ring 6, which is ball-connected in the sampling shell 1, the ball ring 6 is located above the transfer shell 3, a first fixed shell 7 is fixedly connected in the ball ring 6, and a transmission medium is arranged in the first fixed shell 7, which is used to keep the ball ring 6 and the first fixed shell 7 in a horizontal state when the sampling shell 1 is deflected; a monitoring component is arranged on the first fixed shell 7, which is used to monitor the deflection of the sampling shell 1.

[0022] In the above scheme, a ball ring 6 and a first fixed shell 7 for ensuring horizontality are added to the sampling shell 1. The transmission medium in the first fixed shell 7 is hydraulic oil. The central axis of the sampling shell 1, the central axis of the ball ring 6 and the central axis of the first fixed shell 7 all coincide with each other, and the center of gravity of the ball ring 6 and the first fixed shell 7 is located on the coincident central axis of the three. The ball ring 6 is made of metal. When the sampling shell 1 is deflected, the ball ring 6 and the first fixed shell 7 maintain a horizontal state under the action of gravity.

[0023] like Figure 2 and Figure 3As shown, the monitoring component includes: a monitoring rod 8, which is slidably connected to the first fixed shell 7, and the monitoring rod 8 is squeezed and matched with the sampling shell 1 to monitor the deflection of the sampling shell 1; a piston plate 9, which is slidably connected to the first fixed shell 7, and a spring is arranged between the first fixed shell 7 and the piston plate 9, the first fixed shell 7 is slidably connected to the transmission rod 5, the monitoring rod 8 is fixedly connected to the piston plate 9, and the piston plate 9 is located above the transmission rod 5.

[0024] In the above scheme, a monitoring rod 8 is added in the first fixed shell 7, and a sealing rubber ring is arranged on the outer periphery of the piston plate 9, and the surface of the sealing rubber ring is smooth, so as to seal the sliding path of the piston plate 9 in the first fixed shell 7. There is a short distance between the upper side of the monitoring rod 8 and the upper side of the sampling shell 1, so that when the sampling shell 1 is deflected, the monitoring rod 8 is first squeezed with the upper side of the sampling shell 1, and the degree of deflection of the sampling shell 1 is distinguished according to the displacement of the piston plate 9.

[0025] like Figure 4 and Figure 5 As shown, the trigger assembly includes: a flow partition 10, which is rotatably connected to the sampling shell 1, a torsion spring is arranged between the flow partition 10 and the sampling shell 1, a flow hole 11 is arranged on the sampling shell 1, the flow partition 10 and the flow hole 11 are blocked and matched, a connecting port is arranged on the transfer shell 3, the flow hole 11 is connected with the connecting port on the transfer shell 3, and is used to connect the outer side of the sampling shell 1 with the inner side of the transfer shell 3; a first limiting frame 12, which is slidably connected to the sampling shell 1, a spring is arranged between the first limiting frame 12 and the sampling shell 1, and the first limiting frame 12 and the flow partition 10 are limited and matched to control the state of the flow partition 10; a depth setting component is arranged on the sampling shell 1, and is used to release the limiting state of the flow partition 10 by the first limiting frame 12 at a specified underwater depth.

[0026] In the above scheme, the flow hole 11 of the sampling shell 1 is defined, there is at least one flow hole 11, and a flow partition 10 is added to block it. The first limiting frame 12, the flow partition 10 and the flow hole 11 are the same in number, and the three form a group. The initial state of the torsion spring between the flow partition 10 and the sampling shell 1 is a force storage state. The first limiting frame 12 limits the flow partition 10 to further enhance the blocking effect of the flow hole 11.

[0027] like Figure 3 and Figure 5 As shown, the depth-fixing component includes: a second fixed shell 13, which is fixed to the sampling shell 1, and the second fixed shell 13 is slidably connected to the first piston rod 14, the first piston rod 14 is fixed to the first limit frame 12, and compressible gas is injected between the second fixed shell 13 and the first piston rod 14, which is used to adjust the limiting state of the first limit frame 12 and the flow barrier 10 according to the pressure of different water depths.

[0028] In the above scheme, a sealing rubber ring is provided on the outer periphery of the first piston rod 14, and the surface of the sealing rubber ring is smooth, so as to seal the sliding state between the second fixed shell 13 and the first piston rod 14, and the compressible gas in the second fixed shell 13 is air. When the water pressure gradually increases, the first piston rod 14 will gradually move downward and drive the first limit frame 12 to move, while compressing the air in the second fixed shell 13. The second fixed shell 13 and the first piston rod 14 are both made of metal, which is used to prevent the deformation of the two due to pressure, thereby affecting the sealing effect of the second fixed shell 13 and the first piston rod 14.

[0029] Working process: firstly, the sampling shell 1 and its parts are lowered into the river channel through the connecting rope. As the device gradually sinks, the water pressure outside the second fixed shell 13 and the adjacent first piston rod 14 gradually increases, and the first piston rod 14 is squeezed and gradually moves downward, thereby compressing the air in the second fixed shell 13. The first piston rod 14 drives the first limiting frame 12 to move downward, and at the same time squeezes the spring between the first limiting frame 12 and the sampling shell 1, until the first limiting frame 12 loses its limit on the adjacent flow partition 10. The torsion spring between the flow partition 10 and the sampling shell 1 drives the flow partition 10 to rotate, thereby connecting the flow hole 11 with the outside world. The user then The river water is injected into the sample storage shell 2 through the flow hole 11, the transfer shell 3 and the telescopic pipe. As the device gradually moves downward, if the device tilts due to the impact of the river water, the upper side of the interior of the sampling shell 1 will squeeze the monitoring rod 8, and the monitoring rod 8 will drive the piston plate 9 to move downward, and at the same time compress the spring between the piston plate 9 and the first fixed shell 7. The piston plate 9 drives the transmission rod 5 and the movable part 4 to move downward through the hydraulic oil, and the movable part 4 drives the transfer shell 3 to move downward along the inner wall of the sampling shell 1, thereby changing the vertical position of the transfer shell 3 in the river water, preventing the transfer shell 3 from taking too much water in the same level of the river water, and affecting the reference value of the river water sampling.

[0030] As the device gradually moves downward, the river water sample in the sample storage shell 2 gradually increases until the sample storage shell 2 is full of sampling water. The user uses the existing device to seal the sample storage shell 2. At this time, the sampling is completed. The user pulls the device up through the connecting rope, and then takes out the sampling water in the sample storage shell 2. The use of the device is completed.

[0031] Embodiment 2: Based on embodiment 1, Figure 2 , Figure 8 and Fig. 9As shown, it also includes a mud sampling assembly, which is arranged in the sampling shell 1 and is used to sample the bottom mud. The mud sampling assembly includes: a motor 19, which is fixedly connected to the sampling shell 1. The motor 19 is a double-axis motor. A connecting rod 20 is fixedly connected to the output shaft on one side of the motor 19. A sampling rod 21 is fixedly connected to the side of the connecting rod 20 away from the motor 19. A first spiral plate 22 is fixedly connected to the outer periphery of the sampling rod 21; a spline rod 23, which is spline-connected to the sampling rod 21, and a drill bit 24 is fixedly connected to the spline rod 23. The outer periphery of the drill bit 24 is fixedly connected to the first spiral plate 22. Two spiral plates 25, the first spiral plate 22 and the second spiral plate 25 are spliced ​​together, and are used to transport the drilled soil; the impurity removal component is arranged in the sampling shell 1, and is used to prevent the medium in the sampling shell 1 from affecting the quality of the sampled soil; the blocking component is arranged in the sampling shell 1, and is used to block the sampling shell 1; the transmission component is arranged on the motor 19, and is used to synchronously control the position state of the sample storage shell 2; the blocking component is arranged on the transfer shell 3, and is used to control the connection state between the sample storage shell 2 and the transfer shell 3.

[0032] In the above scheme, a drill bit 24 is added to the lower part of the sampling shell 1. The drill bit 24 and the second spiral plate 25 are both made of stainless steel, which ensures its corrosion resistance while saving the cost of the device. The first spiral plate 22 and the second spiral plate 25 have the same rotation direction and can be spliced ​​with each other, thereby guiding the soil upward when they rotate together to sample the soil.

[0033] like Figure 2 and Figure 8 As shown, the debris removal component includes: a sliding ring 26, which is splined to the sampling shell 1, the sliding ring 26 is squeezed and matched with the first spiral plate 22, a blocking plate 27 is fixed to the sampling shell 1, a through hole is provided on the blocking plate 27, and a through hole is provided on the portion of the sampling shell 1 located on the upper side of the blocking plate 27, the blocking plate 27 is rotatably connected to the connecting rod 20, and the blocking plate 27 is in contact with the sliding ring 26 to prevent the medium in the sampling shell 1 from affecting the quality of the sampled soil.

[0034] In the above scheme, the sliding ring 26 is located at the lower side of the sampling shell 1, and the through holes on the blocking plate 27 are arranged to be several, which are used to evenly distribute the pressure and extend the service life. The through holes on the sampling shell 1 are arranged to be several circumferentially distributed, which are used to uniformly force the sampling shell 1 when discharging the medium in the sampling shell 1. The blocking plate 27 is located between the several through holes on the sampling shell 1 and the sliding ring 26, and the blocking plate 27 is located above the sampling rod 21. The total area of ​​the several through holes on the sampling shell 1 is larger than the total area of ​​the several through holes on the blocking plate 27, which facilitates the discharge of impurities.

[0035] like Figure 8 and Fig. 9As shown, the blocking component includes: a fixing ring 28, which is fixed in the sampling shell 1, the sampling rod 21 is fixed with a fixing frame 29, the fixing frame 29 is fixed with a blocking airbag 30, the first spiral plate 22 and the fixing ring 28 are both in contact with and cooperate with the blocking airbag 30; a second limiting frame 31, which is spline-connected to the sampling rod 21, the second limiting frame 31 is limitedly cooperated with the blocking airbag 30, the spline rod 23 is limitedly cooperated with the second limiting frame 31, and the blocking airbag 30 is located between the fixing frame 29 and the second limiting frame 31, and is used to seal the soil sample after the sampling is completed.

[0036] In the above scheme, the lower part of the sampling shell 1, the lower side of the sliding ring 26, the fixed ring 28 and the upper side of the blocking airbag 30 are combined together to form a sampling soil chamber, and as the sliding ring 26 gradually moves upward, the space of the sampling soil chamber gradually increases. The blocking airbag 30 expands in the up and down directions under normal conditions. When it is squeezed in the vertical direction, the blocking airbag 30 expands in the circumferential direction, and cooperates with the fixed ring 28 to seal the lower side of the sampling shell 1.

[0037] like Figure 6 and Fig.10 As shown, the transmission component includes: an extrusion rod 32, which is fixedly connected to the output shaft on the other side of the motor 19, and a slide groove is arranged on the extrusion rod 32. A sliding frame 33 is spline-connected in the sampling shell 1, and the sliding frame 33 is extruded and matched with the sample storage shell 2. A convex rod is arranged on the sliding frame 33, and the convex rod on the sliding frame 33 is extruded and matched with the slide groove on the extrusion rod 32; a one-way plate 34, which is rotatably connected to the extrusion rod 32, and the one-way plate 34 is extruded and matched with the convex rod on the sliding frame 33, and the one-way plate 34 can only rotate in one direction.

[0038] In the above scheme, the upper slide groove of the extrusion rod 32 is composed of an annular slide groove and a spiral slide groove, and the annular slide groove is located on the upper side of the spiral slide groove. The one-way plate 34 is located at the connection between the arc-shaped slide groove and the spiral slide groove, and can only rotate in the direction of the spiral slide groove. When the extrusion rod 32 rotates, the spiral slide groove on the extrusion rod 32 squeezes and drives the convex rod on the sliding frame 33 to move upward until the convex rod on the sliding frame 33 moves into the annular slide groove on the extrusion rod 32. As the extrusion rod 32 continues to rotate until the annular slide groove and the spiral slide groove are connected, the one-way plate 34 is connected to the sliding frame 33. When the connecting part of the spiral slide groove is reached, the protruding rod on the sliding frame 33 contacts and squeezes the one-way plate 34 to rotate, so that the one-way plate 34 blocks the connecting part of the spiral slide groove and the annular slide groove, so that the protruding rod on the sliding frame 33 is always in the annular slide groove. When the motor 19 drives the squeezing rod 32 to reverse, the squeezing rod 32 drives the one-way plate 34 to rotate until the one-way plate 34 contacts the connecting part of the annular slide groove and the spiral slide groove again, and the protruding rod on the sliding frame 33 moves into the spiral slide groove, and the protruding rod on the sliding frame 33 moves downward and resets.

[0039] like Figure 6 and Figure 7As shown, the blocking assembly includes: a third fixed shell 15, which is fixedly connected to the transfer shell 3, the third fixed shell 15 is filled with a transmission medium, the third fixed shell 15 is slidably connected to the second piston rod 16, and the second piston rod 16 is fixedly connected to the sample storage shell 2; a closing plate 17, which is slidably connected to the transfer shell 3, the third fixed shell 15 is slidably connected to the third piston rod 18, the third piston rod 18 is fixedly connected to the closing plate 17, and the closing plate 17 is used to block the telescopic pipe between the transfer shell 3 and the sample storage shell 2.

[0040] In the above scheme, the transmission medium in the third fixed shell 15 is hydraulic oil, which is used for transmission. The second piston rod 16 and the third piston rod 18 are in a sealed sliding relationship with the adjacent third fixed shell 15. There are two third fixed shells 15, second piston rod 16, closing plates 17 and third piston rod 18, which are used to reduce the sealing time. The closing plate 17 is semicircular, and the sum of the areas of the two closing plates 17 is larger than the area of ​​the connection between the transfer shell 3 and the sample storage shell 2, thereby ensuring the sealing effect.

[0041] Working process: During the sampling process of the device, after the drill bit 24 contacts the river bottom, as the device continues to move downward gradually, the drill bit 24 is squeezed and moves upward relative to the sampling shell 1, and the drill bit 24 drives the spline rod 23 to move upward, and the spline rod 23 gradually loses the squeeze on the second limit frame 31, and the blocking airbag 30 expands in the vertical direction and loses the circumferential blockage of the sampling soil cavity, until the first spiral plate 22 and the second spiral plate 25 are spliced, the motor 19 is started, and the lower output shaft of the motor 19 drives the sampling rod 21 and the first spiral plate 22 to rotate together, and the sampling rod 21 drives the spline rod 23, the drill bit 24 and the second spiral plate 25 thereon to rotate together, at this time, the device starts to drill the river bottom soil, and at the same time, the device continues to move downward gradually, and in this process, the soil is guided by the first spiral plate 22 and the second spiral plate 25. Gradually upward, at the same time, the continuously rotating first spiral plate 22 will synchronously drive the sliding ring 26 to move upward, and the sliding ring 26 moves upward and discharges the impurities and water on its upper side through the multiple through holes on the blocking plate 27 and the multiple through holes on the sampling shell 1 (when the device moves down into the river channel, the impurities and water in the river channel flow into the sampling shell 1 through the multiple through holes distributed circumferentially on the sampling shell 1 and the multiple through holes evenly distributed on the blocking plate 27, and the water is located on the upper side of the sliding ring 26 at this time), and the soil sample drilled out is synchronously moved up into the sampling soil chamber until the sliding ring 26 moves up to the limit position, and the soil sampling is completed. The user recycles the device through the connecting rope, and the drill bit 24 moves down again relative to the sampling shell 1, and the second limiting frame 31 squeezes the blocking airbag 30 and expands circumferentially and blocks it. After the device is landed, the sampled soil is taken out, and the use of the device is now completed.

[0042] After the motor 19 is started (i.e. before soil sampling), the upper output shaft of the motor 19 drives the extrusion rod 32 to rotate, and the convex rod on the sliding frame 33 is squeezed by the spiral groove on the extrusion rod 32 and moves upward until the convex rod on the sliding frame 33 moves upward into the annular groove, and the sliding frame 33 drives the sample storage shell 2 to move upward, and the sample storage shell 2 drives the two second piston rods 16 to move upward, and the second piston rod 16 is squeezed by the hydraulic oil and drives the two third piston rods 18 to move toward each other, and the two third piston rods 18 drive the two closing plates 17 to move toward each other and make the two closing plates 17 contact, thereby sealing the connection between the sample storage shell 2 and the transfer shell 3, and the river water sampling is completed at this time.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A muddy water sampling device for sewage detection, characterized in that: include: Sampling shell (1); A sample storage shell (2) is arranged in the sampling shell (1), and the sample storage shell (2) is used to store sampled water; A transfer shell (3) is arranged in the sampling shell (1) and is located above the sample storage shell (2); the sample storage shell (2) and the transfer shell (3) are connected via a telescopic pipe; the transfer shell (3) is used to adjust the sampling position; An adjusting component, arranged on the sample storage shell (2), the adjusting component being used to adjust the position of the transfer shell (3) in the sampling shell (1); The adjusting component comprises: a movable part (4) and a transmission rod (5); The movable part (4) and the transmission rod (5) are both arranged in the sampling shell (1), the movable part (4) is fixedly connected to the intermediate shell (3), and the transmission rod (5) is fixedly connected to the movable part (4), and the movable part (4) and the transmission rod (5) are both located above the sample storage shell (2), and the movable part (4) and the transmission rod (5) are controlled to move according to the deflection amount of the device, so as to adjust the relative position of the sampling shell (1) and the intermediate shell (3); A leveling component, arranged in the sampling shell (1) and used to maintain the horizontal state of the transmission rod (5); A trigger component is arranged on the sampling shell (1) and is used to control when water is sampled.

2. A muddy water sampling device for sewage detection according to claim 1, characterized in that: The leveling assembly comprises: A ball-jointed ring (6) is ball-jointed in the sampling shell (1); the ball-jointed ring (6) is located above the intermediate shell (3); a first fixed shell (7) is fixedly connected in the ball-jointed ring (6); a transmission medium is arranged in the first fixed shell (7) to keep the ball-jointed ring (6) and the first fixed shell (7) in a horizontal state when the sampling shell (1) is deflected; A monitoring component is arranged on the first fixed shell (7) and is used to monitor the deflection amount of the sampling shell (1).

3. A muddy water sampling device for sewage detection according to claim 2, characterized in that: The monitoring component comprises: A monitoring rod (8) is slidably connected to the first fixed shell (7), the monitoring rod (8) being pressed and matched with the sampling shell (1) to monitor the deflection of the sampling shell (1); The piston plate (9) is slidably connected in the first fixed shell (7), a spring is provided between the first fixed shell (7) and the piston plate (9), the first fixed shell (7) is slidably connected to the transmission rod (5), the monitoring rod (8) is fixedly connected to the piston plate (9), and the piston plate (9) is located above the transmission rod (5).

4. A muddy water sampling device for sewage detection according to claim 3, characterized in that: The trigger component comprises: A flow partition (10) is rotatably connected to the sampling shell (1), a torsion spring is arranged between the flow partition (10) and the sampling shell (1), a flow hole (11) is arranged on the sampling shell (1), the flow partition (10) and the flow hole (11) are sealed and matched, a connecting port is arranged on the transfer shell (3), the flow hole (11) is connected with the connecting port on the transfer shell (3), and is used to connect the outer side of the sampling shell (1) with the inner side of the transfer shell (3); a first limiting frame (12) slidably connected to the sampling shell (1), a spring being arranged between the first limiting frame (12) and the sampling shell (1), the first limiting frame (12) being in limiting cooperation with the flow partition (10) for controlling the state of the flow partition (10); A depth-fixing component is arranged on the sampling shell (1) and is used to release the limiting state of the flow barrier (10) by the first limiting frame (12) at a specified underwater depth.

5. A muddy water sampling device for sewage detection according to claim 4, characterized in that: The depth-setting component comprises: The second fixed shell (13) is fixedly connected to the sampling shell (1); the second fixed shell (13) is slidably connected to a first piston rod (14); the first piston rod (14) is fixedly connected to the first limiting frame (12); compressible gas is injected between the second fixed shell (13) and the first piston rod (14) for adjusting the limiting state of the first limiting frame (12) and the flow barrier (10) according to the pressure of different water depths.

6. A muddy water sampling device for sewage detection according to claim 5, characterized in that: It also includes a mud sampling component, which is arranged in the sampling shell (1) and is used to sample the bottom mud. The mud sampling component includes: A motor (19) is fixedly connected in the sampling housing (1); the motor (19) is a double-shaft motor; one output shaft of the motor (19) is fixedly connected to a connecting rod (20); a sampling rod (21) is fixedly connected to a side of the connecting rod (20) away from the motor (19); and a first spiral plate (22) is fixedly connected to the outer periphery of the sampling rod (21); A spline rod (23) spline-connected to the sampling rod (21); a drill bit (24) is fixedly connected to the spline rod (23); a second spiral plate (25) is fixedly connected to the outer periphery of the drill bit (24); the first spiral plate (22) and the second spiral plate (25) are spliced ​​together to transport the drilled soil; A debris removal component is arranged in the sampling shell (1) and is used to prevent the medium in the sampling shell (1) from affecting the quality of the sampled soil; A blocking component, arranged in the sampling shell (1) and used for blocking the sampling shell (1); A transmission component, arranged on the motor (19), and used for synchronously controlling the position state of the sample storage shell (2); A blocking component is arranged on the transfer shell (3) and is used to control the connection state between the sample storage shell (2) and the transfer shell (3).

7. A muddy water sampling device for sewage detection according to claim 6, characterized in that: The debris removal component comprises: A sliding ring (26) is spline-connected in the sampling shell (1); the sliding ring (26) is pressed and matched with the first spiral plate (22); a blocking plate (27) is fixedly connected in the sampling shell (1); a through hole is provided on the blocking plate (27); a portion of the sampling shell (1) located above the blocking plate (27) is provided with a through hole; the blocking plate (27) is rotatably connected to the connecting rod (20); the blocking plate (27) is in contact and matched with the sliding ring (26) to prevent the medium in the sampling shell (1) from affecting the quality of the sampled soil.

8. A muddy water sampling device for sewage detection according to claim 7, characterized in that: The blocking component comprises: A fixing ring (28) is fixedly connected to the sampling shell (1); the sampling rod (21) is fixedly connected to a fixing frame (29); the fixing frame (29) is fixedly connected to a blocking airbag (30); the first spiral plate (22) and the fixing ring (28) are both in contact with and cooperate with the blocking airbag (30); The second limiting frame (31) is spline-connected to the sampling rod (21); the second limiting frame (31) and the blocking airbag (30) are in limiting cooperation; the spline rod (23) and the second limiting frame (31) are in limiting cooperation; the blocking airbag (30) is located between the fixing frame (29) and the second limiting frame (31) and is used to block the soil sample after sampling is completed.

9. A muddy water sampling device for sewage detection according to claim 8, characterized in that: The transmission components include: An extrusion rod (32), the extrusion rod (32) being fixedly connected to the output shaft on the other side of the motor (19), the extrusion rod (32) being provided with a slide groove, the sampling shell (1) being spline-connected with a sliding frame (33), the sliding frame (33) being extrusion-fitted with the sample storage shell (2), the sliding frame (33) being provided with a convex rod, the convex rod on the sliding frame (33) being extrusion-fitted with the slide groove on the extrusion rod (32); The one-way plate (34) is rotatably connected to the extrusion rod (32), the one-way plate (34) is extruded and matched with the protruding rod on the sliding frame (33), and the one-way plate (34) can only rotate in one direction.

10. A muddy water sampling device for sewage detection according to claim 9, characterized in that: The blocking component comprises: A third fixed shell (15) is fixedly connected to the transfer shell (3), a transmission medium is injected into the third fixed shell (15), a second piston rod (16) is slidably connected to the third fixed shell (15), and the second piston rod (16) is fixedly connected to the sample storage shell (2); A closing plate (17) is slidably connected to the transfer shell (3); the third fixed shell (15) is slidably connected to a third piston rod (18); the third piston rod (18) is fixedly connected to the closing plate (17); and the closing plate (17) is used to seal the telescopic pipe between the transfer shell (3) and the sample storage shell (2).

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