Distance-adjustable shore-based hydrological comprehensive acquisition station

Abstract

The invention discloses a distance-adjustable shore-based hydrological comprehensive acquisition station, and belongs to the technical field of hydrological acquisition stations, the distance-adjustable shore-based hydrological comprehensive acquisition station comprises a stand column and a cantilever arranged on one side of the stand column, the tail end of the cantilever is provided with a detection assembly, an annular plate is slidably arranged below the cantilever, a turntable is arranged in the annular plate, and a convex ring is integrally formed on the side surface of the turntable. A sleeve is arranged in the axis direction of the annular plate, the sleeve penetrates through the convex ring and is in running fit with the convex ring, and a traction belt is wound on the outer circumferential surface of the sleeve; when one end of the clamping strip is inserted into the clamping groove, the sleeve can drive the convex ring and the rotating disc to synchronously rotate, the pressing rod is attached to the outer side of the traction belt, when the sleeve drives the rotating disc to synchronously rotate, the released traction belt can be reversely wound on the outer sides of the pressing rod and the sleeve, and along with reverse winding of the traction belt, the sampling assembly can be brought out of the water surface; therefore, water sampling is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrological collection station, and particularly relates to an adjustable distance type shore-based hydrological comprehensive collection station. BACKGROUND

[0002] The hydrological comprehensive collection station is a professional station for systematically monitoring, collecting and processing hydrological and related environmental data, and is a core component of a hydrological monitoring system. The hydrological comprehensive collection station integrates various monitoring devices and technologies to realize real-time or periodic collection of key hydrological elements such as rivers, lakes, reservoirs, underground water and basin weather, and provides data support for water resource management, flood prevention and drought resistance, and ecological protection.

[0003] Although the hydrological collection station integrates various sensors to realize collection of river surface information, in the process of water sampling, the traditional hydrological collection station can only sample water sources near the river bank, and it is difficult to sample water sources far from the river bank to a specific depth.

[0004] Therefore, it is necessary to provide an adjustable distance type shore-based hydrological comprehensive collection station to solve the above technical problems. SUMMARY

[0005] The present application relates to the technical field of hydrological collection station, and particularly relates to an adjustable distance type shore-based hydrological comprehensive collection station.

[0006] Based on the above idea, the present application provides the following technical scheme: an adjustable distance type shore-based hydrological comprehensive collection station, comprising a stand and a cantilever arranged on one side of the stand, a detection assembly is installed at the end of the cantilever, a ring-shaped plate is slidably arranged below the cantilever, a turntable is installed in the ring-shaped plate, a convex ring is integrally formed on the side of the turntable, a sleeve is arranged in the axial direction of the ring-shaped plate, the sleeve passes through the convex ring and rotates with the convex ring, a traction belt is wound on the outer circumferential surface of the sleeve, and a sampling assembly is connected to one end of the traction belt. A clamping piece elastically matched with the sleeve is arranged on the convex ring, a pressing rod is arranged on the side of the turntable close to the traction belt, and the pressing rod is elastically matched with the turntable. During the process that the sleeve releases the traction belt and the pressing rod approaches the center of the turntable, the sleeve is locked with the convex ring through the clamping piece, so that the released traction belt can be reversely wound on the pressing rod and the outside of the sleeve during the rotation of the sleeve.

[0007] As a further scheme of the present application: the clamping piece comprises a fixed frame fixed to the outer side wall of the convex ring, a clamping strip is elastically connected in the fixed frame, a screw rod is threadedly connected to the top end position of the clamping strip, a plurality of clamping grooves matched with the clamping piece are uniformly arranged on the outer side wall of the sleeve, and when one end of the clamping piece inserted into the clamping groove passes through the convex ring, the convex ring can be locked with the sleeve and rotate synchronously.

[0008] As a further scheme of the present application: the sampling assembly comprises a sampling cylinder and a sealing cover slidingly fitted inside the sampling cylinder, the end of the traction belt away from the sleeve is fixed to the top of the sealing cover, at least one positioning groove is formed in the outer side wall of the sealing cover, a positioning block is elastically connected to the inner wall of the sampling cylinder, and the end of the positioning block inserted into the positioning groove is a spherical surface.

[0009] As a further scheme of the present application: a first through groove is formed in the outer side wall of the sampling cylinder, a second through groove is formed in the peripheral surface of the sealing cover, when the positioning block cooperates with the positioning groove, the second through groove is located at the lower position of the first through groove, and a stop block is fixed to the inner wall of the sampling cylinder, when the sealing cover moves upward and contacts the stop block, the first through groove and the second through groove are staggered.

[0010] As a further scheme of the present application: a main stop plate is installed inside the rotating disc, a secondary stop plate is fixedly sleeved to the outside of the sleeve, and the traction belt is located between the main stop plate and the secondary stop plate.

[0011] As a further scheme of the present application: an avoiding groove is formed in the main stop plate along the diameter direction thereof, and the pressing rod is located in the avoiding groove.

[0012] As a further scheme of the present application: a through groove is formed in the rotating disc for the pressing rod to pass through, and a vertical shaft is fixedly arranged in the through groove, the vertical shaft passes through the pressing rod and slidingly cooperates with the pressing rod.

[0013] As a further scheme of the present application: a slide rail is fixedly arranged at the top of the cantilever, and a slide seat slidingly cooperating with the slide rail is fixedly arranged on the annular plate.

[0014] As a further scheme of the present application: a rotating shaft is arranged below the cantilever, the rotating shaft passes through the sleeve and slidingly cooperates with the sleeve, a limiting groove is formed in the peripheral surface of the rotating shaft, and a limiting strip slidingly cooperating with the limiting groove is fixedly arranged on the inner wall of the sleeve.

[0015] As a further scheme of the present application: a valve is installed on the sampling cylinder.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1. When one end of the clamping strip is inserted into the clamping groove, the sleeve can drive the convex ring and the rotating disc to rotate synchronously, the pressing rod is attached to the outer side of the traction belt, when the sleeve drives the rotating disc to rotate synchronously, the released traction belt can be reversely wound on the outer side of the pressing rod and the sleeve, with the traction belt being reversely wound, the sampling assembly can be taken out of the water surface, so that the sampling of the water body is completed.

[0017] 2. When the rotating screw adjusts its height, the pressure rod can cooperate with the screw after moving different distances and extrude the clamping strip to make it cooperate with the clamping groove, thereby facilitating sampling of water sources with different depths. BRIEF DESCRIPTION OF DRAWINGS

[0018] The application will be further described below in combination with the drawings and embodiments.

[0019] Figure 1 is a schematic diagram of the overall structure of the application; Figure 2 is a schematic diagram of the overall structure of the application; Figure 3 is a schematic diagram of the overall structure of the application; Figure 4 is a schematic diagram of the overall structure of the application; Figure 5 is a schematic diagram of the overall structure of the application; Figure 6 is a schematic diagram of the overall structure of the application; Figure 7 is a schematic diagram of the overall structure of the application; Figure 8 is a schematic diagram of the overall structure of the application; Figure 3 is a schematic diagram of the overall structure of the application; Figure 9 is a schematic diagram of the overall structure of the application; Figure 5 is a schematic diagram of the overall structure of the application; Figure 10 Figure 6 is a schematic diagram of the overall structure of the application.

[0020] Figure 11 is a schematic diagram of the overall structure of the application;

[0021] In the figure: 1, stand; 101, control box; 2, cantilever; 201, slide rail; 2011, screw rod; 3, sling; 4, rotating shaft; 401, limiting groove; 5, detection assembly; 6, annular plate; 601, sliding seat; 7, traction belt; 8, sampling cylinder; 801, first through groove; 802, stop block; 9, pressure rod; 10, slide bar; 1001, vertical plate; 11, rotating disc; 1101, convex ring; 1102, clamping ring; 12, sleeve; 1201, limiting strip; 1202, clamping groove; 1203, auxiliary baffle; 13, main baffle; 1301, avoiding groove; 14, connecting rope; 15, positioning strip; 16, protrusion; 1601, extrusion surface; 17, clamping strip; 1701, first convex plate; 1702, inclined surface; 18, tension spring; 19, sealing cover; 1901, positioning groove; 1902, second through groove; 20, positioning block; 2001, spherical surface; 21, screw rod; 22, fixed frame; 2201, second convex plate. DETAILED DESCRIPTION​

[0022] As Figures 1-11 shown, an adjustable shore-based hydrological comprehensive collection station, including a column 1 and set on one side of the column 1 cantilever 2, the end of the cantilever 2 is installed with detection assembly 5, specifically, detection assembly 5 includes water level gauge and flow meter and so on, for collecting the water level and flow information in the river and so on, the column 1 is also fixedly installed with control box 101, the information collected by detection assembly 5 can be uploaded to the cloud or terminal after being processed by the controller in control box 101.

[0023] Actual use, also need to collect the water in the river, based on this, the scheme is slidably arranged with annular plate 6 below the cantilever 2, so that the annular plate 6 can slide along the axis direction of the cantilever 2, referring to Figures 3-10 As shown, the inner side of the annular plate 6 is installed with a rotating disc 11, which can rotate relative to the annular plate 6, specifically, referring to Figure 5 As shown, the outer side of the rotating disc 11 can be fixedly provided with a snap ring 1102, and the inner wall of the annular plate 6 is provided with an annular groove matched with the snap ring 1102, so that the snap ring 1102 is rotatably arranged in the annular groove, the rotating disc 11 is provided with a through hole, and the rotating disc 11 protrudes outward to form a convex ring 1101 at the through hole, the rotating disc 11 is frictionally transmitted with the annular plate 6, and the annular plate 6 is provided with a sleeve 12 in the axis direction, the sleeve 12 passes through the convex ring 1101 and is rotatably matched with it (a bearing can be arranged between the sleeve 12 and the convex ring 1101), the convex ring 1101 is provided with a clamping piece matched with the sleeve 12, so that the sleeve 12 can be locked with the convex ring 1101 through the clamping piece, so that the sleeve 12 can drive the convex ring 1101 and the rotating disc 11 to rotate synchronously; The outer circumferential surface of the sleeve 12 is wound with a traction belt 7, one end of the traction belt 7 is fixedly connected with the sleeve 12, the other end of the traction belt 7 is connected with a sampling assembly, and one side of the rotating disc 11 close to the traction belt 7 is provided with a pressing rod 9, which is elastically matched with the rotating disc 11 and can move along the diameter direction of the rotating disc 11, initially, the pressing rod 9 is near the vertex of the rotating disc 11 and is pressed on the outside of the traction belt 7, which can be specifically referred to Figure 3The position of the pressing rod 9 is gradually close to the center of the rotating disc 11 and always adheres to the outside of the traction belt 7 as the sleeve 12 gradually unwinds the traction belt 7, and the pressing rod 9 can be matched with the clamping piece during the process of approaching the center of the rotating disc 11, so that the convex ring 1101 is locked with the sleeve 12 through the clamping piece, and in the case that the sleeve 12 and the convex ring 1101 are locked and the pressing rod 9 adheres to the outside of the traction belt 7, the traction belt 7 will stop unwinding and reversely wind on the outside of the pressing rod 9 and the sleeve 12 as the sleeve 12 rotates, so as to take out the sampling assembly below the water surface, and based on this, different depths of water sources can be sampled by adjusting the position of the clamping piece relative to the pressing rod 9.

[0024] The clamping piece is arranged on the outer circumferential wall of the convex ring 1101 and elastically matched with the convex ring 1101, the bottom end of the clamping piece is arranged through the convex ring 1101 and can contact the outer circumferential wall of the sleeve 12, and a plurality of clamping grooves 1202 matched with the clamping piece are uniformly arranged on the outer circumferential wall of the sleeve 12, when one end of the clamping piece inserted into the clamping groove 1202 through the convex ring 1101, the convex ring 1101 can be locked with the sleeve 12 and rotate synchronously.

[0025] Further, the clamping piece comprises a fixed frame 22 fixed on the outer circumferential wall of the convex ring 1101, and a clamping strip 17 is elastically connected in the fixed frame 22, in actual use, when the bottom end of the clamping strip 17 is inserted into the clamping groove 1202, the sleeve 12 is locked with the convex ring 1101, and the top end of the clamping strip 17 is threadedly connected with a screw rod 21, and the clamping strip 17 is matched with the clamping groove 1202 by extruding the screw rod 21 during the process of the pressing rod 9 approaching the center of the rotating disc 11.

[0026] The sampling assembly comprises a sampling cylinder 8 and a sealing cover 19 slidingly adhered to the inside of the sampling cylinder 8, and one end of the traction belt 7 away from the sleeve 12 is fixed on the top of the sealing cover 19, at least one positioning groove 1901 is arranged on the outer circumferential wall of the sealing cover 19, and a positioning block 20 matched with the positioning groove 1901 is elastically connected on the inner wall of the sampling cylinder 8 through a pre-set circular hole, specifically, a spring is fixedly arranged between the inner end face of the circular hole and the positioning block 20, one end of the positioning block 20 located on the outside of the sampling cylinder 8 is a spherical surface 2001, initially, one end of the positioning block 20 in the spherical surface 2001 is inserted into the positioning groove 1901, and the gravity of the sampling cylinder 8 itself is not enough to make the positioning block 20 overcome the elastic force and be compressed into the circular hole, so that the sampling cylinder 8 can be kept stable with the sealing cover 19 in the case of no sampling. Further, referring to Figure 7As shown, the outer side wall of the sampling cylinder 8 is provided with a first through groove 801, and the circumferential surface of the sealing cover 19 is provided with a second through groove 1902. When the positioning block 20 is matched with the positioning groove 1901, the second through groove 1902 is located below the first through groove 801, thereby avoiding the external water source entering the sampling cylinder 8 through the first through groove 801 and the second through groove 1902. At least one stop block 802 is fixed on the inner wall of the sampling cylinder 8 at the top end, so as to block the sealing cover 19 and avoid the sealing cover 19 moving out of the sampling cylinder 8.

[0027] In actual use, the driving ring plate 6 moves outward along the cantilever 2, so that the sampling cylinder 8 can approach the river channel. When the sampling cylinder 8 reaches the corresponding position, the sleeve 12 can be driven to rotate, so that the traction belt 7 can be unwound, so that the sampling assembly can be lowered into the river channel. Since the pressure rod 9 is elastically matched with the rotating disc 11, as the traction belt 7 is gradually unwound from the outside of the sleeve 12, the pressure rod 9 can gradually approach the center of the rotating disc 11. When the pressure rod 9 contacts the screw rod 21 and continues to move, it can press the clamping strip 17, so that the clamping strip 17 moves towards the sleeve 12. When one end of the clamping strip 17 is inserted into the clamping groove 1202, the sleeve 12 can drive the convex ring 1101 and the rotating disc 11 to rotate synchronously. The pressure rod 9 is attached to the outside of the traction belt 7. Therefore, when the sleeve 12 drives the rotating disc 11 to rotate synchronously, the released traction belt 7 can be reversely wound on the outside of the pressure rod 9 and the sleeve 12. Referring to Figure 11 As shown, as the traction belt 7 is reversely wound, the sampling assembly can be taken out of the water surface. Specifically, according to the specific structure of the sampling assembly, during the process of lowering the sampling assembly below the water surface, the cooperation of the positioning block 20 and the positioning groove 1901 can keep the sampling cylinder 8 and the sealing cover 19 stable, thereby avoiding the external water source entering the sampling cylinder 8. When the traction belt 7 stops the sampling assembly below and is reversely wound, the sampling cylinder 8 will keep the tendency of moving downward due to inertia, and the sealing cover 19 is instantaneously pulled upward by the reversely wound traction belt 7. In this process, the pressure on the positioning block 20 by the side edge of the positioning groove 1901 will sharply increase, so that the positioning block 20 can be compressed into the circular hole against the elastic force, finally causing the sealing cover 19 to move upward relative to the sampling cylinder 8 with the traction belt 7. When the first through groove 801 and the second through groove 1902 are aligned, the water source can enter the sampling cylinder 8 through the first through groove 801 and the second through groove 1902. When the sealing cover 19 moves upward and contacts the stop block 802, the first through groove 801 and the second through groove 1902 are misaligned, thereby avoiding the water source of different depths entering the sampling cylinder 8 during the process of taking the sampling assembly out of the water surface. Based on the above structure, in use, when the rotating screw 21 adjusts its height, the pressing rod 9 can cooperate with the screw 21 after moving different distances and extrude the clamping strip 17 to cooperate with the clamping groove 1202, specifically, when the deeper water source in the river needs to be sampled, the screw 21 can be rotated to move away from the pressing rod 9, so that the sleeve 12 needs to release more traction belts 7 to make the pressing rod 9 contact with the screw 21 and extrude the clamping strip 17, and similarly, when the shallower water source needs to be sampled, the screw 21 can be rotated to move close to the pressing rod 9, so that the sleeve 12 can contact the screw 21 after releasing less traction belts 7, therefore, the device is beneficial to sample the water source of different depths.

[0028] In actual use, scale lines can be arranged outside the screw 21 to accurately adjust the distance between the screw 21 and the pressing rod 9, so as to control the length of the released traction belts 7, in addition, a display screen can be installed in the control box 101 to display the information collected by the detection assembly 5, or the information collected by the detection assembly 5 can be uploaded to the terminal through the controller in the control box 101, before sampling, the position of the screw 21 can be adjusted according to the current water level and the depth to be sampled.

[0029] Referring to Figures 3-10 As shown in the figure, the protrusion 16 is elastically connected to one end of the pressing rod 9 penetrating the rotating disc 11, the protrusion 16 can move along the axis direction of the pressing rod 9, and the end of the protrusion 16 located outside the pressing rod 9 is provided with an inclined extrusion surface 1601, the annular plate 6 is fixedly connected with a positioning strip 15 at the vertex position, initially, the protrusion 16 is located on one side of the positioning strip 15; Further, the sliding strip 10 is elastically connected to the surface of the pressing rod 9, the sliding strip 10 can slide along the diameter direction of the pressing rod 9, in combination with Figure 5 、 Figure 9 As shown in the figure, the vertical plate 1001 is fixedly connected to the bottom of the sliding strip 10, and the connecting rope 14 is fixed between the vertical plate 1001 and the protrusion 16, the connecting rope 14 penetrates the pressing rod 9 along the axis direction of the pressing rod 9 and is in sliding cooperation with the pressing rod 9, in combination with Figures 5-6 、 Figure 10 As shown in the figure, the bottom end of the clamping strip 17 is provided with an inclined surface 1702.

[0030] In actual use, when the card strip 17 is inserted into the card slot 1202 and the sleeve 12 is rotated to release the traction belt 7, the card slot 1202 can cooperate with the side of the card strip 17 away from the inclined surface 1702, so that the sleeve 12 can stably drive the rotating disc 11 to rotate. In this case, the inclined pressing surface 1601 of the protrusion 16 will be in contact with the positioning strip 15, thereby avoiding the interference between the protrusion 16 and the positioning strip 15 when the rotating disc 11 rotates. When the pressure rod 9 is in contact with the traction belt 7 and reversely winds the traction belt 7, the slide strip 10 will be squeezed into the pressure rod 9. In this process, the vertical plate 1001 that slides downward can pull the protrusion 16 through the connecting rope 14, so that the protrusion 16 is retracted into the pressure rod 9. This causes the protrusion 16 not to be in contact with the positioning strip 15 during the reverse rotation of the sleeve 12 to release the traction belt 7 outside the pressure rod 9. When all the traction belts 7 outside the pressure rod 9 are released, the slide strip 10 can be popped out to reset, thereby causing the protrusion 16 to reset. Specifically, when the protrusion 16 is reset, the side of the protrusion 16 away from the pressing surface 1601 will be in contact with the positioning strip 15 during the reverse rotation of the rotating disc 11 driven by the sleeve 12, thereby preventing the rotating disc 11 from continuing to rotate. At this time, the traction belt 7 can be wound and stored as the sleeve 12 continues to rotate in reverse.

[0031] As described above, the structure can reversely wind the traction belt 7 during the rotation of the sleeve 12 in the direction of the pressure rod 9, thereby pulling the sampling assembly out of the water surface and moving the sampling assembly upward. Then, when the sleeve 12 rotates in the direction of the pressure rod 9 and releases the traction belt 7 outside the pressure rod 9, the sleeve 12 can continue to drive the rotating disc 11 to rotate through the cooperation of the inclined surface 1702 on the card strip 17 and the card slot 1202. When the protrusion 16 that pops out cooperates with the positioning strip 15, the rotating disc 11 stops rotating. At this time, the card strip 17 will be squeezed out of the card slot 1202, so that the sleeve 12 rotates independently relative to the rotating disc 11, thereby facilitating the winding and storage of the traction belt 7.

[0032] The cantilever 2 can be fixed with the control box 101 or the stand column 1 during installation, and the sling 3 is fixed between the top end of the stand column 1 and the end of the cantilever 2 to maintain the stability of the cantilever 2.

[0033] The slide rail 201 is fixed on the top of the cantilever 2, and the slide seat 601 that slidably cooperates with the slide rail 201 is fixed on the annular plate 6. Specifically, the slide rail 201 is arranged with a screw rod 2011, and the slide seat 601 is fixed with a slide block that threadedly cooperates with the screw rod 2011. The rotating shaft 4 is arranged below the cantilever 2, and the rotating shaft 4 penetrates through the sleeve 12 and slidably cooperates with the sleeve 12. In combination with the slide rail 201 and the slide seat 601, the rotating shaft 4 can be driven to rotate by the sleeve 12. Figures 3-5As shown, the rotation shaft 4 is provided with a limiting groove 401 on the circumferential surface, and the sleeve 12 is provided with a limiting strip 1201 on the inner wall, which is in sliding cooperation with the limiting groove 401. Through the structure, the rotation shaft 4 can drive the sleeve 12 to rotate, and the sleeve 12 can move relative to the rotation shaft 4. The rotation shaft 4 and one end of the lead screw 2011 extend into the control box 101 and are driven to rotate by two motors arranged in the control box 101. The end of the rotation shaft 4 away from the control box 101 is rotationally connected with a boom, and the boom is fixedly connected with the cantilever 2.

[0034] Referring to Figure 4 As shown, the inner side of the rotating disc 11 is fixedly connected with a main baffle 13 through a fixed rod, and the outer side of the sleeve 12 is fixedly provided with a secondary baffle 1203. The traction belt 7 is located between the main baffle 13 and the secondary baffle 1203. The main baffle 13 is provided with an avoiding groove 1301 in the diameter direction, and the pressing rod 9 is located in the avoiding groove 1301.

[0035] The end surface of the pressing rod 9 is provided with a groove in sliding cooperation with the protrusion 16. The inner end surface of the groove and the protrusion 16 are fixedly provided with a first spring. The second spring is fixedly arranged between the sliding groove on the pressing rod 9 and the sliding strip 10. Figure 9 As can be seen, when the sliding strip 10 is reset, the connecting rope 14 is in a horizontal state.

[0036] Referring to Figures 5-6 As shown, in actual use, the rotating disc 11 needs to be provided with a through groove for the pressing rod 9 to pass through, and a vertical shaft is fixedly arranged in the through groove and passes through the pressing rod 9 in sliding cooperation.

[0037] In order to realize the elastic cooperation between the pressing rod 9 and the rotating disc 11, a horizontal ear plate is fixedly arranged on the circumferential surface of the pressing rod 9. A boss is fixedly arranged on the outer side of the rotating disc 11 and below the ear plate. The boss and the ear plate are connected with a tension spring 18.

[0038] In actual use, the valve can be installed on the circumferential surface or the bottom end of the sampling cylinder 8 to facilitate the taking out of the sample in the sampling cylinder 8.

[0039] Referring to Figure 10 As shown, the first protruding plate 1701 is fixedly arranged on both sides of the clamping strip 17, passes through the square groove on the fixed frame 22, and is in sliding cooperation with the fixed frame 22. The second protruding plate 2201 is fixedly arranged on the side surface of the fixed frame 22 and at the bottom end. The limiting spring is fixedly arranged between the first protruding plate 1701 and the second protruding plate 2201.

[0040] In actual use, a rubber ring can be arranged between the annular plate 6 and the rotating disc 11 to increase the stability of the two at the beginning, and in addition, the protrusion 16 can be arranged on one side of the positioning strip 15 at the beginning, and through the cooperation of the extrusion surface 1601 and the positioning strip 15, the stability of the rotating disc 11 can also be maintained during the process of releasing the traction belt 7 by the forward rotation of the sleeve 12.

[0041] The above disclosure is only a preferred example of the present application, which is to facilitate the understanding and implementation of those skilled in the art, but it cannot limit the scope of the right of the present application, therefore, the equivalent changes made according to the scope described in the present application still belong to the scope covered by the present application.

Claims

1. An adjustable distance shore-based hydrographic integrated acquisition station, comprising a column and a cantilever arranged on one side of the column, and a detection assembly is installed at the end of the cantilever, characterized in that: The annular plate is arranged below the cantilever, a rotating disc is mounted in the annular plate, a convex ring is integrally formed on the side of the rotating disc, a sleeve is arranged on the axis direction of the annular plate, the sleeve passes through the convex ring and is rotationally matched with the convex ring, a traction belt is wound on the outer circumferential surface of the sleeve, and one end of the traction belt is connected with a sampling assembly. A clamping piece elastically matched with the sleeve is arranged on the convex ring, a pressing rod is arranged on the side of the rotating disc close to the traction belt, and the pressing rod is elastically matched with the rotating disc, in the process that the sleeve releases the traction belt and the pressing rod is close to the center of the rotating disc, the sleeve is locked with the convex ring through the clamping piece, so that the released traction belt can be reversely wound on the pressing rod and the outside of the sleeve in the rotating process of the sleeve.

2. The adjustable distance shore-based hydrological integrated acquisition station according to claim 1, characterized in that: The clamping piece comprises a fixed frame fixed on the outside circumferential wall of the convex ring, a clamping strip elastically connected in the fixed frame, a screw rod threadedly connected with the top end position of the clamping strip, and a plurality of clamping grooves matched with the clamping piece uniformly arranged on the outside circumferential wall of the sleeve, when one end of the clamping piece inserted into the clamping groove, the convex ring can be locked with the sleeve and rotated synchronously.

3. The adjustable distance shore-based hydrological integrated acquisition station according to claim 2, characterized in that: The sampling assembly comprises a sampling cylinder and a sealing cover slidably matched in the sampling cylinder, one end of the traction belt away from the sleeve is fixed on the top of the sealing cover, at least one positioning groove is arranged on the outside circumferential wall of the sealing cover, a positioning block is elastically connected on the inner wall of the sampling cylinder, and the end of the positioning block inserted into the positioning groove is a spherical surface.

4. The adjustable distance shore-based hydrological integrated acquisition station according to claim 3, characterized in that: A first through groove is arranged on the outside circumferential wall of the sampling cylinder, a second through groove is arranged on the circumferential surface of the sealing cover, when the positioning block is matched with the positioning groove, the second through groove is arranged at the lower position of the first through groove, a stop block is fixed on the inner wall of the sampling cylinder, when the sealing cover moves upward and contacts with the stop block, the first through groove is staggered with the second through groove.

5. The adjustable distance shore-based hydrologic integrated collection station of claim 1, wherein: A main baffle is mounted on the inside of the rotating disc, a secondary baffle is fixedly sleeved on the outside of the sleeve, and the traction belt is located between the main baffle and the secondary baffle.

6. The adjustable distance shore-based hydrological integrated acquisition station according to claim 5, characterized in that: An avoiding groove is arranged on the main baffle along the diameter direction of the main baffle, and the pressing rod is located in the avoiding groove.

7. The shore-based integrated hydrological acquisition station of claim 1, wherein: A through groove is arranged on the rotating disc for the pressing rod to pass through, and a vertical shaft is fixedly arranged in the through groove, the vertical shaft passes through the pressing rod and is slidably matched with the pressing rod.

8. The shore-based integrated hydrological acquisition station of claim 1, wherein: A slide rail is fixedly arranged on the top of the cantilever, and a slide seat slidably matched with the slide rail is fixedly arranged on the annular plate.

9. The shore-based integrated hydrological acquisition station of claim 1, wherein: A rotating shaft is arranged below the cantilever, the rotating shaft passes through the sleeve and is slidably matched with the sleeve, a limiting groove is arranged on the circumferential surface of the rotating shaft, and a limiting strip slidably matched with the limiting groove is fixedly arranged on the inner wall of the sleeve.

10. The shore-based integrated hydrological acquisition station of claim 3, wherein: A valve is mounted on the sampling cylinder.

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