A water quality sampling and detection device

Abstract

The present invention relates to the field of water quality detection equipment, and particularly relates to a water quality sampling and detection equipment. It is used to meet the requirement that the water quality sampling and detection equipment can sample and detect different depths of rivers in various seasons. The water quality sampling and detection equipment includes a pumping and detection unit, a projection unit, and a float sampling unit. The float sampling unit includes a float, a counterweight, a water suction pipe, and a limit ring; one end of the water suction pipe is connected to the counterweight, and the other end communicates with the pumping and detection unit. The limit ring is slidably installed on the water suction pipe, and the float is sleeved on the water suction pipe and slides between the limit ring and the counterweight. The projection unit projects the float and the counterweight into the water. When the counterweight reaches the set depth, the water quality detection module extracts the water sample to be detected through the water suction pipe and conducts detection. Through this setting, the water quality sampling and detection equipment can perform sampling and detection at different depths for rivers in different seasons, so as to solve the problems of poor flexibility and applicability of the water quality sampling and detection equipment.

Description

Technical Field

[0001] The present invention relates to the field of water quality detection equipment, and particularly to a water quality sampling and detection equipment. Background Art

[0002] In today's era, the monitoring and protection of the ecological environment are the basis for maintaining ecological balance and the key to ensuring sustainable development. As an important part of the ecological environment and a key carrier of water resources, rivers are very important for water quality monitoring. Therefore, there are devices for detecting the water quality of rivers to long-term and real-time monitor the changes in water quality, and then dynamically track the health status of the river ecosystem to ensure the sustainable utilization of water resources and the stability of the ecological environment.

[0003] The invention patent with the publication number of CN118883878B specifically discloses an integrated floating water quality monitoring equipment, including a floating buoy. The floating buoy is a hollow annular structure, and an inner box body is embedded in the middle of the floating buoy. A plurality of hollow columns are vertically arranged in the inner box body; a telescopic assembly is installed on the upper side of the hollow column, and a water quality sensor is connected to the telescopic assembly. The telescopic assembly is used to drive the water quality sensor to telescopically move in the hollow column. Through the telescopic assembly, the water quality sensor can be extended into the water body to detect the water quality of the water body. However, the water quality detection of rivers often requires sampling and detection at different depths of the river in each season. However, this integrated floating water quality monitoring equipment can only perform fixed-depth water quality detection on the river in the form of fixed-point placement. Moreover, in winter, the equipment may not work properly due to the icing of the river surface.

[0004] In summary, the problems of the existing water quality sampling and detection equipment are as follows: In the process of long-term and real-time river water quality monitoring work, it is difficult to meet the requirements of sampling and detecting rivers at different depths in each season, which limits the flexibility and applicability of the water quality sampling and detection equipment. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a water quality sampling and detection equipment with high applicability and strong flexibility to meet the actual needs of the water quality sampling and detection equipment for sampling and detecting different depths of rivers in each season.

[0006] To achieve the above purpose and other related purposes, the present invention provides a water quality sampling and detection equipment, which includes:

[0007] A launching gantry;

[0008] A pumping and detection unit, the pumping and detection unit includes a water quality detection module and a water pump, and the water outlet of the water pump is communicated with the water quality detection module;

[0009] A projection unit, the projection unit includes a projection power source and an impact sleeve, the impact sleeve is slidably installed on the launch stand, and the projection power source drives the impact sleeve to slide on the launch stand;

[0010] A float sampling unit, the float sampling unit includes a float, a fixed block, a counterweight, a water suction pipe, a projection guide pipe, a limit ring and a locking module; one end of the water suction pipe is fixedly connected to the counterweight, and the other end of the water suction pipe passes through the projection guide pipe and the impact sleeve and communicates with the water inlet of the water pump. The limit ring is slidably installed on the water suction pipe, and the locking module can lock the sliding of the limit ring. The float is sleeved on the water suction pipe, and the float slides between the limit ring and the counterweight. The buoyancy of the float is greater than the gravity of the counterweight. By adjusting the distance between the limit ring and the counterweight, the distance between the counterweight and the float is adjusted to adjust the water entry depth of the counterweight. The fixed block is fixedly installed on the float, and the projection guide pipe is installed on the launch stand. The axis of the projection guide pipe is the same as the axis of the impact sleeve. The float and the counterweight are located in the projection guide pipe. The projection power source drives the impact sleeve to impact the fixed block so that the float and the counterweight are projected from the projection guide pipe into the river. When the counterweight reaches the set depth, the water pump sucks the water sample to be detected into the water quality detection module through the water suction pipe for detection.

[0011] As an alternative, the water quality sampling and detection device includes a first rotation power source and a rotating base;

[0012] The launch stand is rotatably installed on the rotating base, the rotation axis of the launch stand is perpendicular to the sliding direction of the impact sleeve, and the first rotation power source drives the launch stand to rotate.

[0013] As an alternative, the water quality sampling and detection device further includes a second rotation power source and a fixed base;

[0014] The rotating base is rotatably installed on the fixed base, the rotation axis of the rotating base is perpendicular to the rotation axis of the launch stand, and the second rotation power source drives the rotating base to rotate itself.

[0015] As an alternative, the projection power source includes an air compressor, a projection cylinder, a gas proportion valve and an air pipe;

[0016] The projection cylinder is fixedly installed on the launch stand, the telescopic end of the projection cylinder is fixedly installed with an impact sleeve, and the sliding direction of the telescopic end of the projection cylinder is parallel to the sliding direction of the impact sleeve;

[0017] One end of the air pipe communicates with the air compressor, and the other end of the air pipe communicates with the projection cylinder;

[0018] The gas proportional valve is fixedly installed on the air pipe. The gas proportional valve is located between the air compressor and the ejection cylinder, and the gas proportional valve adjusts the sliding speed of the movable end of the ejection cylinder by adjusting the gas flow rate flowing into the ejection cylinder.

[0019] As an alternative, the locking module includes a limiting channel, a guiding groove, a moving ring, an unlocking block, an annular elastic sheet and a button;

[0020] The inner wall of the limiting ring is the limiting channel;

[0021] There are two annular elastic sheets. The annular elastic sheets are located in the limiting channel and fixedly installed at both ends of the limiting channel. A number of inwardly inclined inverted teeth are arranged in a circumferential array on the annular elastic sheet. The diameter of the circle formed by the inner walls of the inverted teeth is smaller than the diameter of the water suction pipe;

[0022] There are two moving rings. The inner diameter of the moving ring is larger than the diameter of the water suction pipe. The moving ring is concentric with the limiting ring. The moving ring is slidably installed in the limiting channel. The moving ring slides to make the inverted teeth open outwards and separate the inverted teeth from the outer wall of the water suction pipe;

[0023] A guiding groove is arranged on the inner wall of the limiting ring. The guiding direction of the guiding groove is parallel to the axis of the limiting channel. One end of the unlocking block is fixedly connected to the side wall of the moving ring. The other end of the unlocking block is slidably connected to the guiding groove. A wedge-shaped surface is arranged at one end of the unlocking block located in the guiding groove;

[0024] One end of the button slidably penetrates through the side wall of the limiting ring. The other end of the button is located in the guiding groove. A wedge-shaped surface matching the unlocking block is arranged at one end of the button located in the guiding groove. The sliding direction of the button is perpendicular to the sliding direction of the unlocking block. The wedge-shaped surface of the button will push the unlocking block to slide and then make the moving ring slide.

[0025] As an alternative, the end of the counterweight is tapered.

[0026] As an alternative, the water quality sampling and detection device further includes a reel, a third rotational power source, a through hole, a rotary joint and a connection port;

[0027] The reel is rotatably installed on the launching stand. The rotation axis of the reel is perpendicular to the sliding direction of the impact sleeve;

[0028] One end of the reel is the power end. The third rotational power source is fixedly installed on the launching stand. The output shaft of the third rotational power source is connected to the power end of the reel;

[0029] The other end of the drum is a connection end. A cavity is provided inside the drum. A connection port concentric with the drum is penetrated through the connection end of the drum, and the connection port communicates with the cavity.

[0030] The rotary joint includes a rotary end and a fixed end. The rotary end is rotatably connected at the connection port, and the rotation axis of the rotary end coincides with the rotation axis of the drum.

[0031] The water suction pipe includes a first communication section and a second communication section. One end of the first communication section communicates with the water inlet of the water pump, and the other end of the first communication section communicates with the fixed end of the rotary joint.

[0032] A through hole communicating with the inside of the cavity is provided on the side wall of the drum. The second communication section is wound on the drum, and one end of the second communication section passes through the through hole and communicates with the cavity, and the other end of the second communication section is fixedly connected with a counterweight.

[0033] As an alternative, the water quality sampling and detection device further includes a positioning unit and a clamping unit.

[0034] The clamping unit includes a clamping cylinder and a clamping block.

[0035] The number of the clamping cylinders is two. The two clamping cylinders are arranged oppositely. The clamping cylinders are fixedly installed on the launch gantry, and the telescopic direction of the clamping cylinders is parallel to the sliding direction of the button.

[0036] The number of the clamping blocks is two. The two clamping blocks are respectively fixedly installed on the telescopic ends of the two clamping cylinders. The clamping cylinders will drive the clamping blocks to clamp the outer wall of the limiting ring and press the button.

[0037] The clamping block is located between the impact sleeve and the drum.

[0038] The positioning unit includes a blocking cylinder, a blocking block and an avoidance hole.

[0039] The number of the blocking cylinders is two. The two blocking cylinders are arranged oppositely. The blocking cylinders are fixedly installed on the launch gantry, and the telescopic direction of the blocking cylinders is perpendicular to the sliding direction of the impact sleeve.

[0040] The number of the blocking blocks is two. The two blocking blocks are respectively fixedly installed on the telescopic ends of the two blocking cylinders. The blocking cylinders will drive the blocking blocks to block the end face of the limiting ring.

[0041] An avoidance hole is provided on the blocking block. The diameter of the avoidance hole is larger than the diameter of the water suction pipe and smaller than the diameter of the limiting ring. When the blocking block blocks the end face of the limiting ring, the avoidance hole does not affect the movement of the water suction pipe.

[0042] The blocking block is located between the clamping unit and the reel.

[0043] As an alternative, the water quality sampling and detection device further includes a guide rail, a slider, a spring, a guide rod, an impact block, a fixing plate and an impact hole;

[0044] The guide rail is fixedly installed on the launching gantry, and the guiding direction of the guide rail is parallel to the sliding direction of the impact sleeve;

[0045] The guide rod is fixedly installed on the launching gantry, and the guiding direction of the guide rod is parallel to the guiding direction of the guide rail;

[0046] The slider is slidably installed on the guide rail and passes through the guide rod;

[0047] The spring is sleeved on the guide rod, one end of the spring abuts against the launching gantry, and the other end of the spring abuts against the slider;

[0048] The impact block is fixedly installed in the middle of the impact sleeve, and the diameter of the impact block is larger than the diameter of the impact sleeve;

[0049] The projectile guiding tube is fixedly installed on the slider and is located in front of the impact sleeve;

[0050] The fixing plate is fixedly installed at one end of the projectile guiding tube close to the impact sleeve. An impact hole is formed in the fixing plate. The diameter of the impact hole is smaller than the diameter of the impact block and larger than the diameter of the impact sleeve.

[0051] As an alternative, the floating buoy is of an annular structure. The inner wall diameter of the floating buoy is larger than the outer wall diameter of the counterweight. The fixing block is fixedly installed at one end of the floating buoy close to the limit ring. A hole smaller than the diameter of the limit ring and larger than the diameter of the water extraction pipe is formed through the fixing block, and the diameter of the hole is smaller than the diameter of the counterweight.

[0052] As described above, a water quality sampling and detection device of the present invention has at least the following beneficial effects:

[0053] 1. In this application, by providing a floating buoy, a counterweight, a water extraction pipe, a limit ring and a locking module, the distance between the limit ring and the counterweight can be adjusted through the locking module, and then the distance between the floating buoy and the counterweight can be adjusted, so that the counterweight can reach different depths of the river, expanding the sampling range and improving the accuracy of river water quality detection;

[0054] 2. By providing a launching platform rack, a rotating base, a first rotating power source, and a second rotating power source, the present application enables the launching platform rack to rotate in two directions, allowing the counterweight and the water suction pipe to be projected to various positions in the river, and adjusting the angle of the counterweight entering the water, further expanding the sampling range at different positions in the river and improving the accuracy and flexibility of water quality detection.

[0055] 3. By providing a counterweight in the present application, the end of the counterweight is conical, which can obtain higher potential energy for the counterweight to break the ice by adjusting the projection angle of the launching platform rack when the river surface freezes in winter, expanding the applicability of the water quality sampling and detection equipment in winter.

[0056] 4. By providing a clamping cylinder, a clamping block, a limiting ring, a locking module, and a button, during the process of winding and unwinding the water suction pipe, the limiting ring is clamped and the button is pressed to unlock the locking module to automatically adjust the distance between the limiting ring and the counterweight, improving the automation efficiency of the water quality sampling and detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 Showing a three-dimensional structural schematic diagram of the water quality sampling and detection equipment of the present invention;

[0058] Figure 2 Showing a top view structural schematic diagram of the water quality sampling and detection equipment of the present invention;

[0059] Figure 3 Showing a structural cross-sectional view of the float, counterweight, limiting ring, and locking module of the present invention;

[0060] Figure 4 Showing the present invention Figure 3 The structural schematic diagram at position A in;

[0061] Figure 5 Showing an exploded schematic diagram of the limiting ring and the locking module of the present invention;

[0062] Figure 6 Showing a structural cross-sectional view of the water quality sampling and detection equipment of the present invention;

[0063] Figure 7 Showing a structural schematic diagram of the reel, the third rotating power source, and the counting unit of the present invention;

[0064] Figure 8 Showing a structural schematic diagram of the clamping unit and the positioning unit of the present invention;

[0065] Figure 9 Showing a structural schematic diagram of the clamping cylinder or the blocking cylinder of the present invention;

[0066] Figure 10Shown is a schematic structural diagram of the projectile guiding tube and the impact sleeve of the present invention;

[0067] In the figure: 1. Launching platform; 2. Pumping detection unit; 3. Projectile unit; 4. Floating sampling unit; 5. First rotational power source; 6. Rotary base; 7. Second rotational power source; 8. Fixed base; 9. Reel; 10. Third rotational power source; 11. Through hole; 12. Connection port; 13. Rotary adapter; 14. Clamping unit; 15. Positioning unit; 16. Guide rail; 17. Slide block; 18. Spring; 19. Guide rod; 20. Impact block; 21. Fixed plate; 22. Impact hole; 23. Electromagnetic clutch; 24. Electromagnetic brake; 25. Counting roller; 26. Encoder;

[0068] 201. Water quality detection module; 202. Water pump;

[0069] 301. Projectile power source; 302. Impact sleeve;

[0070] 401. Floating buoy; 402. Fixed block; 403. Counterweight; 404. Suction pipe; 405. Projectile guiding tube; 406. Limit ring; 407. Locking module;

[0071] 1401. First pneumatic finger cylinder; 1402. First L-shaped clamping block; 1403. Second L-shaped clamping block;

[0072] 1501. Second pneumatic finger cylinder; 1502. First L-shaped blocking block; 1503. Second L-shaped blocking block; 1504. Avoidance hole;

[0073] 3011. Air compressor; 3012. Projectile cylinder; 3013. Gas proportional valve;

[0074] 4071. Limit channel; 4072. Guide groove; 4073. Moving ring; 4074. Unlocking block; 4075. Annular elastic piece; 4076. Button. Detailed implementation manners

[0075] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0076] Please refer to Figures 1 to 10It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they do not have any substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0077] The following various embodiments are only for illustration purposes. Combinations can be made between the various embodiments, and it is not limited to the content shown in the following single embodiment only.

[0078] In this embodiment, please refer to Figures 1 to 6 , the present invention provides a water quality sampling and detection device, which includes:

[0079] A launching gantry 1;

[0080] A pumping and detection unit 2, the pumping and detection unit 2 includes a water quality detection module 201 and a water pump 202, and there is a connection between the water outlet of the water pump 202 and the water quality detection module 201;

[0081] Here, the water quality detection module 201 includes a water pipe, a drain pipe, a drain valve, a manual valve, a detection box, and a water quality detection sensor. A drain pipe is also connected to the detection box. A drain valve is fixedly installed on the drain pipe. The water outlet of the water pump 202 is connected to the inside of the detection box through the water pipe. The manual valve is fixedly installed on the water pipe, and the manual valve is located between the detection box and the water pump 202. The water quality detection sensor is fixedly installed on the upper end surface of the detection box, and the end of the water quality detection sensor with the sensor penetrates into the detection box;

[0082] Here, the type of the water quality detection sensor is not limited, and it can be a pH sensor or a conductivity sensor;

[0083] Here, the model of the water quality detection sensor can be BSK-EC-100 of the Bingsheng brand;

[0084] Here, the number of the water quality detection sensors is not limited;

[0085] The projection unit 3, the projection unit 3 includes a projection power source 301 and an impact sleeve 302, the impact sleeve 302 is slidably mounted on the launch rack 1, and the projection power source 301 drives the impact sleeve 302 to slide on the launch rack 1;

[0086] Here, the form of the projection power source 301 is not limited, it can be in the form of spring compression or gas compression. In this embodiment, the gas compression form is adopted;

[0087] The projection power source 301 includes an air compressor 3011, a projection cylinder 3012, a gas proportional valve 3013 and an air pipe;

[0088] Here, the air compressor 3011 is a device that delivers air to the projection cylinder 3012 by compressing air and increasing air pressure. The air compressor 3011 is in the form of a self - contained air tank, and the model of the air compressor 3011 can be Aotus 30L - S1100;

[0089] The projection cylinder 3012 is fixedly mounted on the launch rack 1, the impact sleeve 302 is fixedly mounted on the telescopic end of the projection cylinder 3012, and the sliding direction of the telescopic end of the projection cylinder 3012 is parallel to the sliding direction of the impact sleeve 302;

[0090] One end of the air pipe is connected to the air compressor 3011, and the other end of the air pipe is connected to the projection cylinder 3012;

[0091] The gas proportional valve 3013 is fixedly mounted on the air pipe, the gas proportional valve 3013 is located between the air compressor 3011 and the projection cylinder 3012, and the gas proportional valve 3013 adjusts the sliding speed of the movable end of the projection cylinder 3012 by adjusting the gas flow rate flowing into the projection cylinder 3012;

[0092] With this setting, when projecting, first turn on the air compressor 3011 to compress the gas. At this time, the gas proportional valve 3013 is in the closed state. When projection is required, open the gas proportional valve 3013 to make the movable end of the projection cylinder 3012 extend and drive the impact sleeve 302 to slide. By adjusting the air pressure or flow rate ratio of the gas proportional valve 3013, the initial speed of the movable end of the projection cylinder 3012 is adjusted, and then the speed of the impact sleeve 302 is adjusted. The gas proportional valve 3013 can enable the water quality sampling and detection equipment to have different projection forces.

[0093] Here, the projection power source 301 can also be in the form of compressing a spring;

[0094] The projection power source 301 includes a lead screw module, an electromagnet, a compression block, a compression spring and an ejection cylinder;

[0095] The ejection cylinder is fixedly mounted on the launching platform 1, and a spring cavity for accommodating a compression spring is provided inside the ejection cylinder. The impact sleeve 302 is slidably mounted in the spring cavity, and one end of the impact sleeve 302 is located inside the spring cavity, and the other end of the impact sleeve 302 slides out of the ejection cylinder;

[0096] The compression spring is located in the spring cavity, one end of the compression spring abuts against the inner wall of the ejection cylinder, and the other end of the compression spring abuts against one end of the impact sleeve 302 located in the spring cavity;

[0097] The screw module is fixedly mounted on the launching platform 1, and the sliding direction of the movable end of the screw module is parallel to the sliding direction of the impact sleeve 302;

[0098] The electromagnet is fixedly mounted on the movable end of the screw module, and the electromagnet is a push-pull electromagnet, and the sliding direction of the movable end of the electromagnet is perpendicular to the sliding direction of the impact sleeve 302;

[0099] The compression block is fixedly mounted on the movable end of the electromagnet, and the compression block contacts one end of the impact sleeve 302 at the initial position, and the end of the impact sleeve 302 in contact with the compression block is located between the compression block and the compression spring;

[0100] With this arrangement, during projectile firing, the compression block on the movable end of the screw module first contacts one end of the impact sleeve 302, and when the movable end of the screw module moves toward the direction of the compression spring, the compression block drives the impact sleeve 302 to compress the compression spring. When projectile firing is required, the electromagnet is energized to cause the compression block to slide and break away from contact with the impact sleeve 302. At this time, the impact sleeve 302 slides due to the elastic force generated by the deformation of the compression spring, and the compression amount of the compression spring is adjusted by the movable distance of the movable end of the screw module, thereby adjusting the firing speed and force of the impact sleeve 302. With this arrangement, the compression amount of the compression spring can be intuitively observed and adjusted, thereby adjusting the firing force, and the electromagnet firing form makes the operation easier.

[0101] The float sampling unit 4, the float sampling unit 4 includes a float 401, a fixed block 402, a counterweight 403, a water suction pipe 404, a projection guide pipe 405, a limit ring 406 and a locking module 407; one end of the water suction pipe 404 is fixedly connected to the counterweight 403, the other end of the water suction pipe 404 passes through the projection guide pipe 405 and the impact sleeve 302 and communicates with the water inlet of the water pump 202, the limit ring 406 is slidably installed on the water suction pipe 404, the locking module 407 can lock the sliding of the limit ring 406, the float 401 is sleeved on the water suction pipe 404, the float 401 slides between the limit ring 406 and the counterweight 403, the buoyancy of the float 401 is greater than the gravity of the counterweight 403, and the distance between the counterweight 403 and the float 401 is adjusted by adjusting the distance between the limit ring 406 and the counterweight 403, thereby adjusting the water depth of the counterweight 403. The fixed block 402 is fixedly installed on the float 401, the projection guide pipe 405 is installed on the launch stand 1, the axis of the projection guide pipe 405 is the same as the axis of the impact sleeve 302, the float 401 and the counterweight 403 are located in the projection guide pipe 405, and the projection power source 301 drives the impact sleeve 302 to impact the fixed block 402 so that the float 401 and the counterweight 403 are projected from the projection guide pipe 405 into the river. When the counterweight 403 reaches the set depth, the water pump 202 pumps the water sample to be detected into the water quality detection module 201 through the water suction pipe 404 for detection;

[0102] Here, the fixed block 402 is made of a rigid material so that the impact sleeve 302 can provide more elastic potential energy for the float 401, and the fixed block 402 can be an iron block;

[0103] Here, the inner diameter of the impact sleeve 302 is larger than the diameter of the limit ring 406;

[0104] Through this setting, the distance between the limit ring 406 and the counterweight 403 is adjusted, and then the distance between the float 401 and the counterweight 403 is adjusted, so that the counterweight 403 can reach different depths of the river, expanding the sampling range and improving the accuracy of river water quality detection;

[0105] The float 401 is of an annular structure, the inner diameter of the float 401 is larger than the outer diameter of the counterweight 403, the fixed block 402 is fixedly installed at one end of the float 401 close to the limit ring 406, and a hole smaller than the diameter of the limit ring 406 and larger than the diameter of the water suction pipe 404 is penetrated through the fixed block 402, and the diameter of the hole is smaller than the diameter of the counterweight 403;

[0106] With this setting, after continuously retracting the water suction pipe 404, the float 401 first slides into the ejection guide pipe 405, and then the counterweight 403 slides into the float 401 and no longer moves in the direction of the reel 9 following the water suction pipe 404, so as to facilitate the next impact ejection of the impact sleeve 302.

[0107] In this embodiment, please refer to Figures 3 to 5 , the locking module 407 includes a limit channel 4071, a guide groove 4072, a moving ring 4073, an unlocking block 4074, an annular elastic sheet 4075 and a button 4076;

[0108] The inner wall of the limit ring 406 is the limit channel 4071;

[0109] The number of the annular elastic sheets 4075 is two. The annular elastic sheets 4075 are located in the limit channel 4071 and fixedly installed at both ends of the limit channel 4071. A number of inwardly inclined inverted teeth are circumferentially arrayed on the annular elastic sheet 4075, and the diameter of the circle formed by the inner walls of the inverted teeth is smaller than the diameter of the water suction pipe 404;

[0110] The number of the moving rings 4073 is two. The inner diameter of the moving ring 4073 is larger than the diameter of the water suction pipe 404. The moving ring 4073 is concentric with the limit ring 406. The moving ring 4073 is slidably installed in the limit channel 4071. The moving ring 4073 slides to make the inverted teeth open outwards and separate the inverted teeth from the outer wall of the water suction pipe 404;

[0111] A guide groove 4072 is arranged on the inner wall of the limit ring 406. The guiding direction of the guide groove 4072 is parallel to the axis of the limit channel 4071. One end of the unlocking block 4074 is fixedly connected to the side wall of the moving ring 4073, and the other end of the unlocking block 4074 is slidably connected to the guide groove 4072. A wedge surface is arranged at one end of the unlocking block 4074 located in the guide groove 4072;

[0112] One end of the button 4076 slides through the side wall of the limit ring 406, and the other end of the button 4076 is located in the guide groove 4072. A wedge surface matching the unlocking block 4074 is arranged at one end of the button 4076 located in the guide groove 4072. The sliding direction of the button 4076 is perpendicular to the sliding direction of the unlocking block 4074. The wedge surface of the button 4076 will push the unlocking block 4074 to slide and then make the moving ring 4073 slide;

[0113] Here, the setting directions of the two annular elastic sheets 4075 located at both ends in the limit channel 4071 are different. Please refer to Figure 4, refer to the upper end of the limit ring 406 as the upper and the lower end of the limit ring 406 as the lower. One of the annular elastic pieces 4075 with inwardly inclined reverse teeth is installed upward at the upper end of the limit channel 4071; the other annular elastic piece 4075 with inwardly inclined reverse teeth is installed downward at the lower end of the limit channel 4071; when the diameter of the circle formed by the inner walls of the reverse teeth is smaller than the diameter of the water suction pipe 404, the two annular elastic pieces 4075 will lock the outer wall of the water suction pipe 404 from two directions, thereby locking the up and down movement of the limit ring 406 on the water suction pipe 404. In this embodiment, the number of moving rings 4073 is two. When the button 4076 is pressed, the button 4076 will push the unlocking block 4074 to slide and make the reverse teeth open outward, so that the limit ring 406 can slide on the water suction pipe 404. When the button 4076 is released, the moving ring 4073 will automatically reset due to the elastic force generated by the deformation of the reverse teeth, and the unlocking blocks 4074 on the two moving rings 4073 will squeeze the button 4076 to extend outside the limit ring 406;

[0114] Through this setting, the limit ring 406 can slide on the water suction pipe 404 at a fixed distance, and the operation is simple and the positioning is accurate, which is convenient for setting the water entry depth of the counterweight 403.

[0115] In this embodiment, please refer to Figure 1 and Figure 6 , the water quality sampling and detection device includes a first rotation power source 5 and a rotating base 6;

[0116] The launching platform 1 is rotatably installed on the rotating base 6, the rotation axis of the launching platform 1 is perpendicular to the sliding direction of the impact sleeve 302, and the first rotation power source 5 drives the launching platform 1 to rotate;

[0117] The water quality sampling and detection device further includes a second rotation power source 7 and a fixed base 8;

[0118] The rotating base 6 is rotatably installed on the fixed base 8, the rotation axis of the rotating base 6 is perpendicular to the rotation axis of the launching platform 1, and the second rotation power source 7 drives the rotating base 6 to rotate self - rotatably;

[0119] Here, the air compressor 3011 is fixedly installed on the fixed base 8, the water pump 202 is fixedly installed on the fixed base 8, and the detection box is fixedly installed on the fixed base 8;

[0120] Here, in the present embodiment, the water quality sampling and testing equipment further includes a first reducer and a second reducer, the first rotating power source 5 and the second rotating power source 7 are both motors, the first rotating power source 5 is fixedly mounted on the rotating base 6, the axis of the output shaft of the first rotating power source 5 is perpendicular to the sliding direction of the impact sleeve 302, the first rotating power source 5 is connected to the launching platform 1 through the first reducer, the first reducer provides a greater torque for the first rotating power source 5, the first rotating power source 5 is responsible for adjusting the elevation angle of the launching platform 1, the second rotating power source 7 is fixedly mounted on the fixed base 8, the second rotating power source 7 is connected to the rotating base 6 through the second reducer, the second rotating power source 7 is responsible for adjusting the angle of the launching platform 1 facing the river; the second reducer provides a greater torque for the second rotating power source 7;

[0121] This arrangement allows the launch platform 1 to rotate in two directions, making it easy to adjust the direction and elevation of the launch platform 1, so as to achieve the purpose of projecting the counterweight 403 and the pumping pipe 404 to various positions in the river, and to facilitate the adjustment of the angle at which the counterweight 403 enters the water, thereby further expanding the sampling range at different positions in the river and improving the accuracy and flexibility of water quality detection.

[0122] In this embodiment, please refer to Figure 3 , the end of the counterweight block 403 is tapered;

[0123] Here, a chamber is provided inside the counterweight block 403, and small holes penetrating the chamber are evenly provided on the outer wall of the counterweight block 403, and one end of the water pumping pipe 404 is connected to the chamber of the counterweight block 403;

[0124] Here, the side wall circumferential array of the counterweight block 403 is fixedly mounted with fork teeth;

[0125] Through this arrangement, when winter comes, the elevation angle of the launch platform 1 can be adjusted to make the counterweight 403 have more gravitational potential energy. Combined with the conical design of the front end of the counterweight 403, it will provide greater pressure on the ice surface and thus provide a better ice-breaking effect. The conical end of the counterweight 403 can also reduce a certain amount of air resistance in the air. The fork teeth can make the counterweight 403 better inserted into the ice layer, and the ice layer can be cut by retracting the counterweight 403.

[0126] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 7 The water quality sampling and testing device further includes a reel 9, a third rotation power source 10, a through hole 11, a rotary adapter 13 and a connection port 12;

[0127] The winding drum 9 is rotatably mounted on the launch stand 1, and the rotation axis of the winding drum 9 is perpendicular to the sliding direction of the impact sleeve 302;

[0128] One end of the winding drum 9 is the power end, the third rotational power source 10 is fixedly mounted on the launch stand 1, and the output shaft of the third rotational power source 10 is connected to the power end of the winding drum 9;

[0129] The other end of the winding drum 9 is the connection end. There is a cavity inside the winding drum 9. A connection port 12 concentric with the winding drum 9 is penetrated through the connection end of the winding drum 9, and the connection port 12 communicates with the cavity;

[0130] The rotary joint 13 includes a rotary end and a fixed end. The rotary end is rotatably connected at the connection port 12, and the rotation axis of the rotary end coincides with the rotation axis of the winding drum 9;

[0131] The water suction pipe 404 includes a first communication section and a second communication section. One end of the first communication section communicates with the water inlet of the water pump 202, and the other end of the first communication section communicates with the fixed end of the rotary joint 13;

[0132] Here, the water suction pipe 404 can be wound on the winding drum 9. The outer wall of the water suction pipe 404 has a certain hardness, and the internal space of the water suction pipe 404 will not be compressed when the water suction pipe 404 is wound on the winding drum 9;

[0133] Here, the type of the water suction pipe 404 is not limited. It can be a PVC fiber-reinforced hose or a metal hose;

[0134] Here, a bearing is installed inside the rotary end of the rotary joint 13. The rotary end of the rotary joint 13 can effectively prevent the first communication section from rotating with the winding drum 9 and winding around the water pump 202, thereby damaging the water suction pipe 404 itself and the water inlet of the water pump 202;

[0135] A through hole 11 communicating with the inside of the cavity is provided on the side wall of the winding drum 9. The second communication section is wound on the winding drum 9, and one end of the second communication section passes through the through hole 11 and communicates with the cavity, and the other end of the second communication section is fixedly connected to the counterweight 403;

[0136] Here, the water quality sampling and detection device further includes an electromagnetic clutch 23, a power source support plate and an electromagnetic brake 24;

[0137] The power source support plate is fixedly mounted on the outer wall of the launch stand 1;

[0138] The third rotational power source 10 is fixedly mounted on the power source support plate, and an electromagnetic clutch 23 is fixedly connected to the output shaft of the third rotational power source 10;

[0139] The electromagnetic clutch 23 is fixedly installed on the power source support plate. The electromagnetic clutch 23 is fixedly connected to the power end of the winding drum 9. The axis of the power end of the winding drum 9 coincides with the rotation axis of the winding drum 9. The electromagnetic clutch 23, the power end of the winding drum 9, and the third rotational power source 10 are concentrically arranged;

[0140] The connection end of the electromagnetic brake 24 is fixedly connected to the winding drum 9. The axis of the connection end of the winding drum 9 coincides with the rotation axis of the winding drum 9. The electromagnetic brake 24 is fixedly installed on the side wall of the launching gantry 1;

[0141] Here, the electromagnetic clutch 23 is a device that realizes the engagement and separation between the winding drum 9 and the output shaft of the third rotational power source 10 by relying on the action of electromagnetic force;

[0142] Here, the electromagnetic clutch 23 can separate the output shaft of the third rotational power source 10 from the connection with the winding drum 9. When launching the float 401, the third rotational power source 10 can be idled first, and then the electromagnetic clutch 23 connects the third rotational power source 10 with the winding drum 9, thereby reducing the resistance that the winding drum 9 will receive from the output shaft of the third rotational power source 10 at the moment of launching and reducing the equipment damage of the third rotational power source 10;

[0143] Here, the electromagnetic brake 24 is a device that realizes the braking function by using electromagnetic force. Its working principle is based on the law of electromagnetic induction and friction, so that the connection end of the winding drum 9 no longer rotates due to friction, thereby braking the winding drum 9;

[0144] Here, when the launching length reaches the requirement, the electromagnetic clutch 23 can be separated from the third rotational power source 10 and the winding drum 9, and at the same time, the electromagnetic brake 24 is started. The electromagnetic brake 24 will brake the winding drum 9 to limit the length of the water extraction pipe 404, thereby limiting the scope of this sampling detection;

[0145] Through this setting, when the water quality sampling and detection equipment is launched, the winding drum 9 will not increase the resistance during launching. When setting the sampling range, the length of the water extraction pipe 404 can be set by braking the winding drum 9, making the operation of the worker simple and the stability of the water quality sampling and detection equipment high.

[0146] Here, the water quality sampling and detection equipment further includes a counting unit;

[0147] The counting unit includes a counting roller 25, a driving synchronous pulley, a driven synchronous pulley, a synchronous belt, an encoder support plate, and an encoder 26;

[0148] The counting roller 25 is rotatably installed on the launching gantry 1. The rotation axis of the counting roller 25 is parallel to the rotation axis of the reel 9. One end of the counting roller 25 is a connecting shaft. The axis of the connecting shaft of the counting roller 25 coincides with the axis of the counting roller 25. The connecting shaft of the counting roller 25 penetrates and extends out of the side wall of the launching gantry 1. The connecting shaft of the counting roller 25 and the power end of the reel 9 are on the same side;

[0149] The driving synchronous pulley is fixedly installed on the power end of the reel 9. The axis of the driving synchronous pulley coincides with the axis of the reel 9. The driven synchronous pulley is fixedly installed on the connecting shaft of the counting roller 25. The axis of the driven synchronous pulley coincides with the axis of the connecting shaft of the counting roller 25;

[0150] The synchronous belt connects the driving synchronous pulley and the driven synchronous pulley;

[0151] The encoder support plate is fixedly installed on the side wall of the launching gantry 1;

[0152] The input shaft of the encoder 26 is fixedly connected to the connecting shaft of the counting roller 25. The encoder 26 is fixedly installed on the encoder support plate;

[0153] With this setting, when the reel 9 rotates, it will drive the driving synchronous pulley to rotate. The driving synchronous pulley drives the driven synchronous pulley to rotate through the synchronous belt. The driven synchronous pulley will drive the counting roller 25 to rotate. For example, if the sizes of the driving synchronous pulley and the driven synchronous pulley are equal, when the reel 9 rotates one circle, the counting roller 25 also rotates one circle; if the ratio of the sizes of the driving synchronous pulley and the driven synchronous pulley is 2:1, when the reel 9 rotates one circle, the counting roller 25 rotates two circles; the rotation of the counting roller 25 enables the encoder 26 to convert into an electrical signal according to the number of rotation circles of the counting roller 25, and then calculate the length of the water extraction pipe 404 thrown or retracted. The encoder 26 can make the sampling range and throwing distance of the water quality sampling and detection equipment more accurate.

[0154] In this embodiment, please refer to Figure 2 、 Figure 6 、 Figure 8 and Figure 9 , the water quality sampling and detection equipment further includes a positioning unit 15 and a clamping unit 14;

[0155] The clamping unit 14 includes a clamping cylinder and a clamping block;

[0156] The number of the clamping cylinders is two. The two clamping cylinders are arranged oppositely. The clamping cylinders are fixedly installed on the launching gantry 1. The telescopic direction of the clamping cylinders is parallel to the sliding direction of the button 4076;

[0157] The number of the clamping blocks is two, and the two clamping blocks are respectively fixedly installed on the telescopic ends of two clamping cylinders. The clamping cylinders drive the clamping blocks to clamp the outer wall of the limiting ring 406 and press the button 4076.

[0158] The clamping blocks are located between the impact sleeve 302 and the reel 9.

[0159] Here, in this embodiment, two clamping cylinders can also be replaced by a first pneumatic finger cylinder 1401. The first pneumatic finger cylinder 1401 adopts the form of a special cylinder as Figure 9 . Two telescopic ends are slidably installed on the first pneumatic finger cylinder 1401 relatively. The sliding directions of the two telescopic ends of the first pneumatic finger cylinder 1401 are parallel to the sliding direction of the button 4076. The two telescopic ends of the first pneumatic finger cylinder 1401 slide relatively synchronously. The first pneumatic finger cylinder 1401 is fixedly installed on the launching gantry 1 and is located below the water suction pipe 404. The two clamping blocks are respectively a first L-shaped clamping block 1402 and a second L-shaped clamping block 1403. The first L-shaped clamping block 1402 and the second L-shaped clamping block 1403 are fixedly installed on the first pneumatic finger cylinder 1401 relatively. The horizontal end of the first L-shaped clamping block 1402 is fixedly connected to one telescopic end of the first pneumatic finger cylinder 1401, and the vertical end of the first L-shaped clamping block 1402 clamps the outer wall of the limiting ring 406. The horizontal end of the second L-shaped clamping block 1403 is fixedly connected to the other telescopic end of the first pneumatic finger cylinder 1401, and the vertical end of the second L-shaped clamping block 1403 clamps the outer wall of the limiting ring 406. When the two telescopic ends of the first pneumatic finger cylinder 1401 approach each other, the diameter of the clamping space formed by the first L-shaped clamping block 1402 and the second L-shaped clamping block 1403 is less than or equal to the diameter of the limiting ring 406. At this time, the button 4076 is pressed into the limiting ring 406. When the two telescopic ends of the first pneumatic finger cylinder 1401 move away from each other, the first L-shaped clamping block 1402 and the second L-shaped clamping block 1403 no longer clamp the limiting ring 406.

[0160] Here, the model of the first pneumatic finger cylinder 1401 can be HFD20X20 of AirTAC.

[0161] The positioning unit 15 includes a blocking cylinder, a blocking block and an avoidance hole 1504.

[0162] The number of the blocking cylinders is two. The two blocking cylinders are arranged relatively. The blocking cylinders are fixedly installed on the launching gantry 1. The telescopic direction of the blocking cylinders is perpendicular to the sliding direction of the impact sleeve 302.

[0163] The number of the blocking blocks is two, and the two blocking blocks are respectively fixedly installed on the telescopic ends of two blocking cylinders, and the blocking cylinders drive the blocking blocks to block the end face of the limiting ring 406;

[0164] An avoidance hole 1504 is formed in the blocking block. The diameter of the avoidance hole 1504 is larger than the diameter of the water suction pipe 404, and the diameter of the avoidance hole 1504 is smaller than the diameter of the limiting ring 406. When the blocking block blocks the end face of the limiting ring 406, the avoidance hole 1504 does not affect the movement of the water suction pipe 404;

[0165] The blocking block is located between the clamping unit 14 and the reel 9;

[0166] Here, in this embodiment, two blocking cylinders can also be replaced by a second pneumatic finger cylinder 1501. The second pneumatic finger cylinder 1501 adopts a special cylinder form such as Figure 9 . Two telescopic ends are slidably installed on the second pneumatic finger cylinder 1501 relatively. The sliding directions of the two telescopic ends of the second pneumatic finger cylinder 1501 are perpendicular to the sliding direction of the impact sleeve 302. The two telescopic ends of the second pneumatic finger cylinder 1501 slide relatively synchronously. The second pneumatic finger cylinder 1501 is fixedly installed on the launch stand 1 and is located below the water suction pipe 404. The first L-shaped blocking block 1502 and the second L-shaped blocking block 1503 are fixedly installed on the second pneumatic finger cylinder 1501 relatively. The horizontal end of the first L-shaped blocking block 1502 is fixedly connected to one telescopic end of the second pneumatic finger cylinder 1501, and the vertical end of the first L-shaped blocking block 1502 blocks the end face of the limiting ring 406. The horizontal end of the second L-shaped blocking block 1503 is fixedly connected to the other telescopic end of the second pneumatic finger cylinder 1501, and the vertical end of the second L-shaped blocking block 1503 blocks the end face of the limiting ring 406. Equal semi-circular avoidance holes 1504 are respectively arranged on the first L-shaped blocking block 1502 and the second L-shaped blocking block 1503. When the two telescopic ends of the second pneumatic finger cylinder 1501 approach each other, the diameter of the circular hole formed by the two semi-circular avoidance holes 1504 on the first L-shaped blocking block 1502 and the second L-shaped blocking block 1503 is larger than the diameter of the water suction pipe 404 and smaller than the diameter of the limiting ring 406. At this time, the limiting ring 406 will be blocked at the first L-shaped blocking block 1502 and the second L-shaped blocking block 1503. When the two telescopic ends of the second pneumatic finger cylinder 1501 move away from each other, the first L-shaped blocking block 1502 and the second L-shaped blocking block 1503 do not block the movement of the limiting ring 406;

[0167] Here, the model of the second pneumatic finger cylinder 1501 can be HFD20X20 of AirTAC;

[0168] With this setting, the first L-shaped clamping block 1402 and the second L-shaped clamping block 1403 clamp the outer wall of the limit ring 406 and press the button 4076, causing the unlocking block 4074 to push the moving ring 4073 and make the reverse teeth open outward. At this time, relative sliding can occur between the limit ring 406 and the water extraction pipe 404. Such a setting enables the automatic unlocking of the limit ring 406 and the locking module 407, improving the automation efficiency of the water quality sampling and detection equipment.

[0169] In this embodiment, please refer to Figure 2 and Figure 10 , the water quality sampling and detection equipment further includes a guide rail 16, a slider 17, a spring 18, a guide rod 19, an impact block 20, a fixing plate 21, and an impact hole 22;

[0170] The guide rail 16 is fixedly installed on the launching gantry 1, and the guiding direction of the guide rail 16 is parallel to the sliding direction of the impact sleeve 302;

[0171] The guide rod 19 is fixedly installed on the launching gantry 1, and the guiding direction of the guide rod 19 is parallel to the guiding direction of the guide rail 16;

[0172] The slider 17 is slidably installed on the guide rail 16 and passes through the guide rod 19;

[0173] The spring 18 is sleeved on the guide rod 19. One end of the spring 18 abuts against the launching gantry 1, and the other end of the spring 18 abuts against the slider 17;

[0174] The impact block 20 is fixedly installed in the middle of the impact sleeve 302, and the diameter of the impact block 20 is larger than the diameter of the impact sleeve 302;

[0175] The projectile guiding tube 405 is fixedly installed on the slider 17 and is located in front of the impact sleeve 302;

[0176] The fixing plate 21 is fixedly installed at one end of the projectile guiding tube 405 close to the impact sleeve 302. An impact hole 22 is formed in the fixing plate 21. The diameter of the impact hole 22 is smaller than the diameter of the impact block 20, and the diameter of the impact hole 22 is larger than that of the impact sleeve 302;

[0177] Here, after continuously retracting the water extraction pipe 404, the float 401 will first slide into the projectile guiding tube 405 and be fixed in the projectile guiding tube 405 without moving towards the reel 9;

[0178] Here, the guide rail 16, the slider 17, the spring 18, and the guide rod 19 are combined to form a buffer mechanism. In this embodiment, the number of buffer mechanisms is two groups. The two groups of buffer mechanisms are relatively installed on the launch platform 1. The two groups of buffer mechanisms are located in front of the impact sleeve 302. The projectile guide tube 405 is fixedly installed on the two sliders 17. When the floating buoy 401 is projected, first, the impact sleeve 302 impacts the fixed block 402 through the impact hole 22, and then the impact block 20 impacts the projectile guide tube 405. The projectile guide tube 405 will drive the slider 17 to compress the spring 18, and the elastic force generated by the deformation of the spring 18 is used for buffering;

[0179] Through this setting, a buffer force is provided to the impact sleeve 302, which can prevent the impact sleeve 302 from directly impacting the launch platform 1 due to too fast firing speed, resulting in damage to the cylinder, and improving the stability and service life of the equipment.

[0180] The specific usage method of this embodiment is as follows:

[0181] The working sequence of the water quality sampling and detection equipment is to first take water samples from the deep water layer and then gradually reduce the sampling depth until the shallow water layer for sampling. For the convenience of description, an example is given below. When sampling and detecting a river at depths of 10 meters, 5 meters, and 2 meters, the first projection is an adjustment projection. The staff first adjusts the angle and elevation angle of the launch platform 1 facing the river, starts the electromagnetic clutch 23 to make the third rotation power source 10 idle, and then turns on the air compressor 3011 to compress the gas and adjusts the gas flow to the appropriate range through the gas proportion valve 3013 to determine the speed of the projection cylinder 3012. At this time, the clamping cylinder continuously clamps the limit ring 406, starts the projection cylinder 3012 to drive the impact sleeve 302 to strike the fixed block 402, and the fixed block 402 drives the floating buoy 401 and the counterweight 403 to fly into the air. The length of the water extraction pipe 404 is calculated according to the number of turns of the counting roller 25 counted by the encoder 26. When the water extraction pipe 404 flies out 20 meters according to the projection range, the electromagnetic brake 24 is started. At this time, the total length of the thrown water extraction pipe 404 is 20 meters. The water extraction pipe 404 is wound up until the length of the external water extraction pipe 404 is 10 meters, which is the depth of the first sampling. Then, the clamping of the clamping cylinder is released, and the limit ring 406 moves with the water extraction pipe 404 and the distance from the counterweight 403 is 10 meters. When the reel 9 winds the floating buoy 401 into the projectile guide tube 405 and the counterweight 403 is wound into the floating buoy 401, the winding is stopped at this time to prepare for the second projection;

[0182] Second ejection: Start the ejection cylinder 3012 to drive the impact sleeve 302 to strike the fixed block 402. When the water suction pipe 404 flies out 20 meters, start the electromagnetic brake 24. At this time, the total length of the ejected water suction pipe 404 is 20 meters, the distance between the float 401 and the counterweight 403 is 10 meters, and the sampling depth is 10 meters. Start the water pump 202 to pump the water sample at this depth into the detection box for water quality detection. After the water quality detection, the water sample is discharged from the detection box. At this time, wind up the water suction pipe 404 through the reel 9, start the blocking cylinder to position the limit ring 406, start the clamping cylinder to clamp the limit ring 406 and press the button 4076. Continue to wind up the water suction pipe 404 until the length of the external water suction pipe 404 is 5 meters of the second sampling depth. Release the blocking of the blocking cylinder and the clamping of the clamping cylinder. The limit ring 406 moves with the water suction pipe 404 and the distance from the counterweight 403 is 5 meters. When the reel 9 winds the float 401 into the ejection guide pipe 405 and the counterweight 403 is wound into the float 401, stop winding at this time and prepare for the third ejection;

[0183] Third ejection: Repeat the ejection steps of the second time to conduct water quality detection at 5 meters. When the detection is completed, wind up the water suction pipe 404 through the reel 9, start the blocking cylinder to position the limit ring 406, start the clamping cylinder to clamp the limit ring 406 and press the button 4076. Continue to wind up the water suction pipe 404 until the length of the external water suction pipe 404 is 2 meters of the third sampling depth. Release the blocking of the blocking cylinder and the clamping of the clamping cylinder. The limit ring 406 moves with the water suction pipe 404 and the distance from the counterweight 403 is 5 meters. When the reel 9 winds the float 401 into the ejection guide pipe 405 and the counterweight 403 is wound into the float 401, stop winding at this time and prepare for the fourth ejection;

[0184] Fourth ejection: Repeat the ejection steps of the second time to conduct water quality detection at 2 meters. When the water quality detection is completed, prepare to reset the equipment, wind up the water suction pipe 404, start the blocking cylinder to position the limit ring 406, start the clamping cylinder to clamp the limit ring 406 and press the button 4076 until the float 401 is wound into the ejection guide pipe 405 and the counterweight 403 is wound into the float 401. The overall reset of the water quality sampling and detection equipment is completed;

[0185] If it is in winter, the larger elevation angle can be adjusted by adjusting the first rotation power source 5, and the firing speed of the ejection cylinder 3012 can be adjusted by adjusting the gas proportion valve 3013 to facilitate more potential energy of the counterweight 403 for ice breaking.

[0186] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A water quality sampling and testing device, characterized in that: The water quality sampling and testing equipment comprises: Launch pad; A water pumping detection unit, the water pumping detection unit comprises a water quality detection module and a water pump, and the water outlet of the water pump is connected to the water quality detection module; A projectile unit, the projectile unit comprising a projectile power source and an impact sleeve, the impact sleeve is slidably mounted on the launch platform, and the projectile power source drives the impact sleeve to slide on the launch platform; A float sampling unit, the float sampling unit includes a float, a fixed block, a counterweight, a water suction pipe, a projectile guide pipe, a limit ring and a locking module; one end of the water suction pipe is fixedly connected to the counterweight, the other end of the water suction pipe passes through the projectile guide pipe and the impact sleeve and is connected to the water inlet of the water pump, the limit ring is slidably installed on the water suction pipe, the locking module can lock the sliding of the limit ring, the float is sleeved on the water suction pipe, the float slides between the limit ring and the counterweight, the buoyancy of the float is greater than the gravity of the counterweight, and the limit ring is adjusted by The distance between the ring and the counterweight block is adjusted to adjust the distance between the counterweight block and the float, thereby adjusting the depth of the counterweight block entering the water. The fixed block is fixedly installed on the float, the projectile guide tube is installed on the launching platform, the axis of the projectile guide tube is the same as the axis of the impact sleeve, the float and the counterweight block are located in the projectile guide tube, the projectile power source drives the impact sleeve to hit the fixed block so that the float and the counterweight block are projected from the projectile guide tube into the river, and when the counterweight block reaches the set depth, the water pump draws the water sample to be tested into the water quality detection module through the pumping pipe for detection; The water quality sampling and testing equipment comprises a first rotational power source and a rotating base; The launching platform is rotatably mounted on a rotating base, the rotating axis of the launching platform is perpendicular to the sliding direction of the impact sleeve, and the first rotating power source drives the launching platform to rotate; The water quality sampling and testing equipment also includes a second rotational power source and a fixed base; The rotating base is rotatably mounted on the fixed base, the rotating axis of the rotating base is perpendicular to the rotating axis of the launching platform, and the second rotating power source drives the rotating base to rotate; The float is an annular structure, the inner wall diameter of the float is larger than the outer wall diameter of the counterweight, the fixed block is fixedly installed at one end of the float close to the limiting ring, and a hole is penetrated through the fixed block, which is smaller than the diameter of the limiting ring and larger than the diameter of the water pumping pipe, and the diameter of the hole is smaller than the diameter of the counterweight.

2. A water quality sampling and testing device according to claim 1, characterized in that: The projectile power source includes an air compressor, a projectile cylinder, a gas proportional valve and an air pipe; The ejection cylinder is fixedly mounted on the launching platform, and an impact sleeve is fixedly mounted on the telescopic end of the ejection cylinder, and the sliding direction of the telescopic end of the ejection cylinder is parallel to the sliding direction of the impact sleeve; One end of the air pipe is connected to the air compressor, and the other end of the air pipe is connected to the ejection cylinder; The gas proportional valve is fixedly installed on the air pipe, and the gas proportional valve is located between the air compressor and the projectile cylinder. The gas proportional valve adjusts the sliding speed of the movable end of the projectile cylinder by adjusting the gas flow rate flowing into the projectile cylinder.

3. A water quality sampling and testing device according to claim 1, characterized in that: The locking module includes a limiting channel, a guide groove, a moving ring, an unlocking block, an annular spring sheet and a button; The inner wall of the limiting ring is a limiting channel; There are two annular spring pieces, which are located in the limiting channel and fixedly mounted at both ends of the limiting channel. A circular array of inwardly inclined inverted teeth is provided on the annular spring piece, and the diameter of the circle formed by the inner walls of the inverted teeth is smaller than the diameter of the water pumping pipe. There are two movable rings, the inner diameter of which is larger than the diameter of the water pumping pipe, the movable ring is concentrically arranged with the limiting ring, and the movable ring is slidably installed in the limiting channel. The movable ring slides to open the inverted teeth outwards and to make the inverted teeth break away from the outer wall of the water pumping pipe; A guide groove is provided on the inner wall of the limiting ring, the guiding direction of the guide groove is parallel to the axis of the limiting channel, one end of the unlocking block is fixedly connected to the side wall of the moving ring, the other end of the unlocking block is slidably connected to the guide groove, and the unlocking block is provided with a wedge surface at one end located in the guide groove; One end of the button slides through the side wall of the limiting ring, and the other end of the button is located in the guide groove. A wedge-shaped surface matching the unlocking block is provided on one end of the button located in the guide groove. The sliding direction of the button is perpendicular to the sliding direction of the unlocking block. The wedge-shaped surface of the button will push the unlocking block to slide and then cause the moving ring to slide.

4. A water quality sampling and testing device according to claim 1, characterized in that: The end of the counterweight is tapered.

5. A water quality sampling and testing device according to claim 1, characterized in that: The water quality sampling and testing equipment also includes a reel, a third rotation power source, a through hole, a rotary adapter and a connection port; The reel is rotatably mounted on the launching platform, and the rotation axis of the reel is perpendicular to the sliding direction of the impact sleeve; One end of the drum is a power end, the third rotation power source is fixedly mounted on the launching platform, and the output shaft of the third rotation power source is connected to the power end of the drum; The other end of the reel is a connecting end, a cavity is arranged inside the reel, and a connecting port concentric with the reel is arranged through the connecting end of the reel, and the connecting port is connected to the cavity; The rotary adapter comprises a rotary end and a fixed end, the rotary end is rotatably connected at the connection port, and the rotary axis of the rotary end coincides with the rotary axis of the reel; The water pumping pipe comprises a first connecting section and a second connecting section, one end of the first connecting section is connected to the water inlet of the water pump, and the other end of the first connecting section is connected to the fixed end of the rotary adapter; A through hole connected to the inside of the cavity is provided on the side wall of the reel, the second connecting section is rolled up on the reel, one end of the second connecting section passes through the through hole and connects to the cavity, and the other end of the second connecting section is fixedly connected to the counterweight block.

6. A water quality sampling and testing device according to claim 5, characterized in that: The water quality sampling and testing equipment also includes a positioning unit and a clamping unit; The clamping unit comprises a clamping cylinder and a clamping block; The number of the clamping cylinders is two, the two clamping cylinders are arranged opposite to each other, the clamping cylinders are fixedly mounted on the launching platform, and the extension direction of the clamping cylinders is parallel to the sliding direction of the button; There are two clamping blocks, which are respectively fixedly mounted on the telescopic ends of two clamping cylinders. The clamping cylinders drive the clamping blocks to clamp the outer wall of the limit ring and press the button. The clamping block is located between the impact sleeve and the reel; The positioning unit comprises a blocking cylinder, a blocking block and an avoidance hole; The number of the blocking cylinders is two, the two blocking cylinders are arranged opposite to each other, the blocking cylinders are fixedly mounted on the launching platform, and the extension direction of the blocking cylinders is perpendicular to the sliding direction of the impact sleeve; There are two blocking blocks, which are respectively fixedly mounted on the telescopic ends of the two blocking cylinders. The blocking cylinders drive the blocking blocks to block the end faces of the limiting rings. The blocking block is provided with an avoidance hole, the diameter of which is larger than the diameter of the water pumping pipe and smaller than the diameter of the limiting ring. When the blocking block blocks the end face of the limiting ring, the avoidance hole does not affect the movement of the water pumping pipe. The blocking block is located between the clamping unit and the reel.

7. A water quality sampling and testing device according to claim 1, characterized in that: The water quality sampling and testing equipment also includes a guide rail, a slider, a spring, a guide rod, an impact block, a fixing plate and an impact hole; The guide rail is fixedly mounted on the launching platform, and the guiding direction of the guide rail is parallel to the sliding direction of the impact sleeve; The guide rod is fixedly mounted on the launching platform, and the guiding direction of the guide rod is parallel to the guiding direction of the guide rail; The slider is slidably mounted on the guide rail and passes through the guide rod; The spring is sleeved on the guide rod, one end of the spring is against the launching platform, and the other end of the spring is against the slider; The impact block is fixedly mounted in the middle of the impact sleeve, and the diameter of the impact block is larger than the diameter of the impact sleeve; The projectile guide tube is fixedly mounted on the slide block, and the projectile guide tube is located in front of the impact sleeve; The fixing plate is fixedly mounted on one end of the projectile guide tube close to the impact sleeve, and an impact hole is opened on the fixing plate. The diameter of the impact hole is smaller than the diameter of the impact block, and the diameter of the impact hole is larger than the impact sleeve.

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