A multifunctional river water sediment content sampling device

Abstract

The present invention provides a multifunctional river water sediment content sampling device, comprising a delivery device and a sampling device, wherein the delivery device is used to provide an initial velocity to the sampling device, the delivery device comprises a recovery rope for pulling the sampling device, the sampling device comprises a sampling cylinder, a counterweight portion is arranged at the front end of the sampling cylinder, a buoyancy portion is arranged at the end of the sampling cylinder, and a sampler is arranged inside the sampling cylinder. The present invention can sample the river water sediment content at the river bank and the area far from the bank, and makes the sampling work less costly and less dangerous.

Description

Technical Field

[0001] The invention relates to the technical field of hydrological testing, and in particular to a multifunctional river water sediment content sampling device. Background Art

[0002] Hydrological survey is a general term for various technical works that systematically collect and organize hydrological data. Monitoring the suspended sediment content in water bodies is a routine monitoring item of hydrological survey. In the existing technology, most of the sand collection for hydrological survey is done manually. It is necessary to collect sand-containing water samples on site to monitor the suspended sediment content. Observers collect samples at the waterside or use ship-borne samplers or hydrological cableway-mounted samplers.

[0003] Manual sampling at the water's edge is the lowest-cost sampling method, but it cannot achieve sampling in the middle of the river. The two types of ship-borne samplers and hydrographic cableway samplers mentioned above are both relatively large and difficult to carry. Ship-borne samplers are equivalent to sampling directly by boat, which is relatively expensive, and for some river sections, ships even need to carry their own vehicles, and this sampling method is relatively dangerous in bad weather. The hydrographic cableway sampler is fixedly installed, which is equivalent to installing one at each sampling point, which is more expensive. It is even more difficult to install a hydrographic cableway in places with inconvenient transportation.

[0004] Therefore, a river water sediment content sampling device that is low in cost and can be used for sampling far away from the shore is now in great need. Summary of the invention

[0005] In view of this, the present invention provides a multifunctional river water sediment content sampling device, which can sample the river water sediment content in the river bank and the area far from the bank, and makes the sampling work lower in cost and less dangerous.

[0006] In order to solve the above technical problems, the present invention provides a multifunctional river water sediment content sampling device, including a delivering device and a sampling device, the delivering device is used to provide an initial velocity to the sampling device, the delivering device includes a recovery rope for pulling the sampling device, the sampling device includes a sampling cylinder, a counterweight portion is provided at the front end of the sampling cylinder, a buoyancy portion is provided at the end of the sampling cylinder, and a sampler is provided inside the sampling cylinder.

[0007] Furthermore, the launching device also includes a rod body, a hanging ring is provided at the front end of the rod body, and a winding mechanism is provided at the rear end of the rod body. The end of the recovery rope is tied to the winding mechanism, and the front end of the recovery rope is fixedly connected to the buoyancy part.

[0008] Furthermore, the launching device includes a launching tube, the inner diameter of which is larger than the outer diameter of the sampling tube, the bottom end of the launching tube is connected to the pressure chamber, the pressure chamber is connected to the air supply mechanism, a winding shaft is arranged in the pressure chamber, the end of the recovery rope is tied on the winding shaft, the front end of the recovery rope is fixedly connected to the buoyancy part, the winding shaft is rotatably fixed in the pressure chamber, a winding frame is arranged at the end of the winding shaft corresponding to the launching tube, a winding motor is fixedly installed outside the pressure chamber, and one end of the winding shaft passes through the pressure chamber and is drivingly connected to the output shaft of the winding motor.

[0009] Furthermore, a protrusion is provided on the inner wall of the bottom of the launching tube, and the protrusion prevents the sampling tube from falling into the pressure chamber, and the protrusion is an annular structure.

[0010] Furthermore, the sampling tube includes a cylindrical shell with an opening reserved at one end of the shell, and a sampler is slidably inserted into the shell through the opening. The cross-sectional structure of the sampler cooperates with the internal structure of the shell, and a limiting mechanism for limiting the rotation of the sampler is arranged inside the shell. A first water inlet is opened near the tail area of ​​the shell, and a second water inlet is arranged on the sampler corresponding to the first water inlet. A sealing plate is movably arranged at the opening to prevent the sampler from detaching.

[0011] Furthermore, the limiting mechanism includes a plurality of guide bars arranged along the axial direction of the inner wall of the sampling tube, the guide bars are integrally formed with the sampling tube, and the sampler is provided with guide grooves cooperating with the guide bars.

[0012] Furthermore, the buoyancy part includes a buoyancy cylinder movably connected to the end of the sampling cylinder, the front half of the buoyancy cylinder connected to the sampling cylinder is an operating chamber, the rear half of the buoyancy cylinder is provided with an air-making mechanism, and the end of the buoyancy cylinder is provided with a first air bag connected to the air-making mechanism.

[0013] Furthermore, an annular groove is provided on the peripheral side of the end of the buoyancy tube, and a first air bag without gas inside is fixedly provided in the groove, and the first air bag is connected to the gas-making mechanism through a first pipe.

[0014] Furthermore, the end center of the buoyancy tube is fixedly connected to the recovery rope.

[0015] Furthermore, the gas-making mechanism includes a gas-making chamber arranged in the buoyancy cylinder, the gas-making chamber is a spherical structure, the gas-making chamber is filled with water, and the water does not exceed half of the volume of the gas-making chamber, a storage chamber is arranged on the side of the gas-making chamber close to the sampling cylinder, an effervescent disintegrant is placed in the storage chamber, the connection between the storage chamber and the gas-making chamber is sealed by a waterproof and easy-to-tear film, the effervescent disintegrant is prepared into a block structure, a first air outlet pipe is arranged in the gas-making chamber, the length of the first air outlet pipe is equal to the radius of the gas-making chamber, and the first pipe is connected to the first air outlet pipe.

[0016] Furthermore, the waterproof and easy-to-tear film is a sampling aluminum film, the storage cavity is made of a transparent material, and the operating cavity is provided with an operating window.

[0017] Furthermore, a blocking mechanism is provided inwardly at the first water inlet on the shell, and the blocking mechanism includes a mounting plate provided at the first water inlet, and both ends of the mounting plate are respectively fixedly connected to the sampling tube, and a second airbag without gas is fixedly provided on the inner side of the mounting plate, and a second pipe is provided in the sampling tube, and one end of the second pipe is connected to the second airbag, and one end of the second pipe extends into the operating cavity, and a sealing film is provided at one end of the second pipe located in the operating cavity, and the sealing film delays the time for gas to enter the second airbag;

[0018] A second air outlet pipe is arranged in the air making chamber, and the length of the second air outlet pipe is equal to the radius of the air making chamber. A third pipe is arranged in the operating chamber outside the air making chamber, and the third pipe is connected with the second air outlet pipe, and the third pipe is movably connected with the second pipe.

[0019] Furthermore, the third pipeline is a hose.

[0020] Furthermore, a connector is provided at the end of the third pipe, and the connector is threadedly connected to the end of the second pipe.

[0021] Furthermore, the sealing film is made of latex film.

[0022] Furthermore, a puncturing mechanism is provided in the second pipe corresponding to the sealing film, and the puncturing mechanism includes a spike fixed on the inner wall of the second pipe, the tip of the spike faces the center of the sealing film, and the spike does not contact the sealing film when it is not deformed.

[0023] Furthermore, the counterweight part is detachably connected to the front end of the sampling tube.

[0024] The beneficial effects of the above technical solution of the present invention are as follows:

[0025] In the existing technology, it is relatively simple to collect river water and sediment near the river bank, but it is more difficult to collect samples far away from the river bank. Ship-borne sampling requires the cooperation of dock vessels, and the risk increases greatly when the weather is complex and changeable. The hydrological cableway is suitable for some small rivers, especially the constructed canals. It is not suitable for other large rivers or the wild due to cost and various factors.

[0026] In the present application, the sampler is placed inside the sampling tube, which is light and easy to carry, and has a recovery rope at the tail. After the sample is launched and the river water is sampled, the recovery rope is pulled back, and the area far from the river bank can be sampled;

[0027] In addition, the front end of the sampling tube is a counterweight part, and the rear end is a buoyancy part. After the sampling tube is launched into the water, the counterweight part pulls most of the sampling tube into the water, and the river water enters the sampler, while the buoyancy part makes the tail of the sampling tube float, so that the river water can be collected without sinking to the bottom of the water, which affects the sampling accuracy. At the same time, sinking to the bottom of the water will affect the reliability of the recovery operation.

[0028] Moreover, the buoyancy is not generated at the time of launch, that is, the first airbag is deployed subsequently and will not affect the launching distance of the sampling tube. In addition, the sealing of the sampler is also achieved by the second airbag, that is, the river water after sampling is sealed by the second airbag in the sampler, and will not be exchanged with the external river water during the recovery process, and the river water will not flow out during recovery.

[0029] Of course, the most important thing is that in order to meet the needs of fixed settings for sampling fixed waters and random sampling in the wild, the application adopts two methods of delivery devices. That is, the fixed type uses air pressure to provide power, and the sampling tube can be launched, so that the delivery device can be placed on the riverside, and the sampling device is directly placed in the delivery device, and the delivery of the sampling device is controlled by settings or remote communication; random sampling adopts the swing delivery method, and the rod body can be telescopic, which is easy to carry like the sampling device. When sampling is needed, the sampling device can be hung on the recovery rope and thrown out through the rod body. After proficiency in operation, it can be thrown out as far as fifty meters, which can meet the sampling requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the sampling device of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure inside the sampling device of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of the sampling tube and the counterweight part of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the sampling tube and the buoyancy part of the present invention;

[0034] Figure 5 For the present invention Figure 4 A schematic diagram of the structure enlargement at the center A;

[0035] Figure 6 It is a structural schematic diagram of the second pipe internal hole-breaking mechanism of the present invention;

[0036] Figure 7 It is a cross-sectional view of the sampler and the sampling tube of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the first delivery device of the present invention;

[0038] Fig. 9 It is a schematic structural diagram of the second delivery device of the present invention.

[0039] Description of reference numerals:

[0040] 100, sampling tube; 101, housing; 102, sampler; 103, second water inlet; 104, first water inlet; 105, second air bag; 106, mounting plate; 107, second pipeline; 108, sealing film; 109, hole-breaking mechanism; 110, guide strip; 111, guide groove; 112, sealing plate;

[0041] 200, buoyancy part; 201, buoyancy cylinder; 202, operating chamber; 203, operating window; 204, gas-making mechanism; 205, groove; 206, first air bag; 207, sealing ring; 208, first pipeline; 209, first air outlet pipe; 210, gas-making chamber; 211, second air outlet pipe; 212, water; 213, third pipeline; 214, waterproof and tearable film; 215, storage chamber; 216, effervescent disintegrant; 217, connector;

[0042] 300, counterweight;

[0043] 401, hanging ring; 402, rod body; 403, winding mechanism;

[0044] 501, launching tube; 502, winding shaft; 503, wire taking-up motor; 504, pressure chamber; 505, winding frame; 506, bump;

[0045] 600. Recovery rope. DETAILED DESCRIPTION

[0046] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will be combined with the appended drawings of the embodiments of the present invention. Figure 1-9 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0047] like Figure 1-7As shown: This embodiment provides a multifunctional river water sediment content sampling device, including a delivery device and a sampling device, the delivery device is used to provide an initial velocity to the sampling device, the delivery device includes a recovery rope 600 for pulling the sampling device, the delivery device is separately arranged from the sampling device, the delivery device provides power to the sampling device, so that it has an initial velocity, can fly out, and collect river water far away from the river bank area, in addition, a recovery rope 600 is fixed on the sampling device, and the recovery rope 600 is connected to the delivery device. After the sampling is completed, the sampling device can be pulled back by the recovery rope 600. The sampling device includes a sampling barrel 100, a counterweight portion 300 is arranged at the front end of the sampling barrel 100, a buoyancy portion 200 is arranged at the end of the sampling barrel 100, and a sampler 102 is arranged inside the sampling barrel 100. The sampling device mainly includes three parts, namely the sampling tube 100 in the middle, the counterweight part 300 at the front end, and the buoyancy part 200 at the rear end. After the sampling device flies into the river water, the buoyancy part 200 directly provides buoyancy or slowly provides gradually increasing buoyancy, so that the sampling device will not sink to the bottom of the water. At this time, the sampler 102 collects river water, and then the buoyancy part 200 makes the sampling device located on the river surface, which is convenient for pulling back.

[0048] The sampling tube 100 includes a cylindrical shell 101, and an opening is reserved at one end of the shell 101. The sampler 102 is slidably inserted into the shell 101 through the opening. The cross-sectional structure of the sampler 102 matches the internal structure of the shell 101. A limiting mechanism for limiting the rotation of the sampler 102 is arranged inside the shell 101. A first water inlet 104 is opened near the tail area of ​​the shell 101. The sampler 102 is provided with a second water inlet 103 corresponding to the first water inlet 104. A sealing plate 112 is movably arranged at the opening to prevent the sampler 102 from detaching. The opening reserved at one end of the shell 101 facilitates the sampler 102 to be placed in the sampling tube 100. The outer diameter of the sampler 102 is smaller than the inner diameter of the shell 101. Since the first water inlet 104 on the shell 101 and the second water inlet 103 on the sampler 102 need to correspond, a limiting mechanism is provided in the shell 101 to prevent the sampler 102 from rotating. In order to prevent the sampler 102 from shaking along its axial direction in the sampling tube 100, a sealing plate 112 is movably provided at the opening of the shell 101. The sealing plate 112 can be connected to the inner thread of the opening. In this way, after the sampler 102 is loaded into the sampling tube 100, the sampler 102 is fixed by twisting the sealing plate 112.

[0049] The limiting mechanism includes a plurality of guide strips 110 arranged along the axial direction of the inner wall of the sampling barrel 100. The guide strips 110 are integrally formed with the sampling barrel 100. A guide groove 111 cooperating with the guide strips 110 is provided on the sampler 102. The limiting mechanism prevents the sampler 102 from rotating, so that the first water inlet 104 and the second water inlet 103 are not aligned. The cross-sectional structure of the guide strip 110 cooperates with the cross-sectional structure of the guide groove 111. When the sampler 102 is inserted into the sampling barrel 100, the guide strips 110 and the guide grooves 111 are aligned. In this way, after insertion, the raised guide strips 110 can limit the sampler 102 from rotating around the central axis of the sampling barrel 100.

[0050] The buoyancy part 200 includes a buoyancy cylinder 201 movably connected to the end of the sampling cylinder 100, the front half of the buoyancy cylinder 201 connected to the sampling cylinder 100 is an operation chamber 202, the rear half of the buoyancy cylinder 201 is provided with a gas-making mechanism 204, and the end of the buoyancy cylinder 201 is provided with a first air bag 206 connected with the gas-making mechanism 204. The buoyancy part 200 provides buoyancy after the first air bag 206 is inflated, the buoyancy cylinder 201 and the sampling cylinder 100 can be fixed by threads, and the rear part of the buoyancy cylinder 201 is the gas-making mechanism 204. After the sampling device is launched, the gas-making mechanism 204 generates gas, so that the gas enters the first air bag 206, and the first air bag 206 expands to provide buoyancy to the sampling device.

[0051] The gas-making mechanism 204 includes a gas-making chamber 210 disposed in the buoyancy cylinder 201. The gas-making chamber 210 is a spherical structure. The gas-making chamber 210 is filled with water 212, and the water 212 does not exceed half of the volume of the gas-making chamber 210. A storage chamber 215 is disposed on one side of the gas-making chamber 210 close to the sampling cylinder 100. The storage chamber 215 contains an effervescent disintegrant 216. The connection between the storage chamber 215 and the gas-making chamber 210 is sealed by a waterproof tear film 214. The effervescent disintegrant 216 is prepared into a block. The gas-generating mechanism 204 adopts the principle of gas generation by an effervescent tablet, and an effervescent disintegrant 216 is placed in the storage cavity 215, and the effervescent disintegrant 216 is solid. The storage cavity 215 is sealed by a waterproof and easy-to-tear film 214, so that when the sampling device is launched and given a certain impact, the effervescent disintegrant 216 can break through the waterproof and easy-to-tear film 214 and enter the gas-generating chamber 210, thereby reacting with water 212 to generate a large amount of gas, and the gas can generate buoyancy when it enters the first air bag 206.

[0052] A first air outlet pipe 209 is provided in the gas chamber 210, the length of which is equal to the radius of the gas chamber 210, and the first pipe 208 is connected to the first air outlet pipe 209. In order to prevent the water 212 in the gas chamber 210 from flowing into the first air bag 206, the volume of the water 212 does not exceed half of the solvent in the gas chamber 210, and is at least less than one third. At the same time, the length of the first air outlet pipe 209 is equal to the radius of the gas chamber 210, and the end of the first air outlet pipe 209 is close to the center of the gas chamber 210. Under this structure, no matter how the sampling device is turned over, it is difficult for the water 212 to contact the end of the first air outlet pipe 209 when flowing in the gas chamber 210, resulting in that the water 212 basically does not flow out of the first air outlet pipe 209.

[0053] The waterproof and tearable film 214 is a sampling aluminum film. The toughness of the aluminum film is poor, but the waterproof performance is good, which prevents water 212 from entering the storage chamber 215 to react when not in use, and after receiving the impact, the effervescent disintegrant 216 can easily break through the aluminum film and enter the gas chamber 210. The storage chamber 215 is made of transparent material, and the operation chamber 202 is provided with an operation window 203. The interior of the storage chamber 215 is visible. After cooperating with the operation window 203, if it is manually operated, it can be observed whether the effervescent disintegrant 216 in the storage chamber 215 enters the gas chamber 210. The main application is more flexible in delivery, which can be pneumatically propelled and launched, or manually thrown out. When pneumatically launched, the acceleration is very large, and the effervescent disintegrant 216 can break through the aluminum film 100%. When it is manually thrown out, it is necessary to hold the sampling device and shake it vigorously for a few times, and observe the situation in the storage chamber 215. If the aluminum film is broken, the sampling device is quickly thrown out.

[0054] A blocking mechanism is provided inwardly at the first water inlet 104 on the housing 101, and the blocking mechanism includes a mounting plate 106 provided at the first water inlet 104, and both ends of the mounting plate 106 are respectively fixedly connected to the sampling tube 100, and a gas-free second airbag 105 is fixedly provided on the inner side of the mounting plate 106, and a second pipe 107 is provided in the sampling tube 100, and one end of the second pipe 107 is communicated with the second airbag 105, and one end of the second pipe 107 extends into the operating chamber 202, and a sealing film 108 is provided at one end of the second pipe 107 located in the operating chamber 202, and the sealing film 108 delays the time for the gas to enter the second airbag 105;

[0055] A second gas outlet pipe 211 is provided in the gas chamber 210, and the length of the second gas outlet pipe 211 is equal to the radius of the gas chamber 210. A third pipe 213 is provided outside the gas chamber 210 in the operating chamber 202, and the third pipe 213 is connected to the second gas outlet pipe 211, and the third pipe 213 is movably connected to the second pipe 107. The second gas outlet pipe 211 here is the same as the first gas outlet pipe 209, and both prevent water 212 from entering, thereby affecting the generation of gas.

[0056] The blocking mechanism takes effect with a delay. After the sampler 102 collects river water, the blocking mechanism takes effect and expands through the first water inlet 104 to block the second water inlet 103. The blocking mechanism is also realized by the expansion of the airbag. The second airbag 105 is bonded to the inner side of the mounting plate 106 and fits on the surface of the mounting plate 106 when not inflated. The second pipe 107 in the sampling tube 100 is connected to the second airbag 105. At the same time, after the second pipe 107 is connected to the third pipe 213, the gas in the gas chamber 210 will enter the second airbag 105 through the third pipe 213 and the second pipe 107 in sequence. However, the direct expansion of the second airbag 105 will affect the collection of river water by the sampler 102. Therefore, a sealing film 108 is adhered to the end of the second pipe 107, that is, the gas generated at the first time will be intercepted by the sealing film 108 and cannot enter the second airbag 105. When the gas is slowly generated in large quantities, it will break through the sealing film 108 and enter the second airbag 105. However, the sampler 102 can collect enough river water during this period of time.

[0057] Considering that the second pipe 107 needs to pass through the interior of the sampling tube 100 , space needs to be reserved at the position where the end of the sampler 102 is located in the second pipe 107 , that is, the end of the sampler 102 is recessed downward, and the recessed portion corresponds to the second pipe 107 .

[0058] The third pipe 213 is a hose, and a connector 217 is provided at the end of the third pipe 213, and the connector 217 is threadedly connected to the end of the second pipe 107. The end of the second pipe 107 extends into the operating chamber 202, and the end of the third pipe 213 is also located in the operating chamber 202. The staff can operate both through the operating window 203. This arrangement is convenient for replacing the sealing film 108. The storage chamber 215 can also be threadedly connected to the gas chamber 210, so that the equipment can be reused.

[0059] The sealing film 108 is made of latex film, and a hole-breaking mechanism 109 is set in the second pipe 107 corresponding to the sealing film 108. The hole-breaking mechanism 109 includes a spike fixed on the inner wall of the second pipe 107, and the tip of the spike faces the center of the sealing film 108. The spike does not contact the sealing film 108 when it is not deformed. The sealing film 108 is made of latex film, and of course, a rubber film can also be used. As long as it can be inflated and burst after a certain pressure, the sealing film is bonded to the end of the second pipe. At the same time, in order to improve the stability of the equipment, a hole-breaking mechanism 109 is also set in the second pipe 107. When the sealing film 108 is expanded, if it does not burst at a certain pressure, the sealing film 108 will touch the spike, be pierced by the spike, and thus crack, which can also achieve the above functions. This structure mainly takes into account that the film cannot be completely consistent with the film, there must be errors, and there may be errors in whether the sealing film 108 is tightened when it is installed.

[0060] According to one embodiment of the present invention, Figure 1 , Figure 2 , Figure 4 and Fig. 9 As shown,

[0061] A sealing ring 207 is provided on the peripheral side of the buoyancy tube 201 to prevent air pressure leakage, thereby preventing the air pressure level of the sampling tube 100 from being reduced due to air leakage when launching the sampling tube 100 and maintaining the launching distance of the sampling tube 100.

[0062] According to one embodiment of the present invention, Figure 1-3 As shown,

[0063] The counterweight 300 is detachably connected to the front end of the sampling tube 100. One counterweight 300 can be used for multiple sampling tubes 100, which can reduce the overall quality of the equipment when carried. Especially for field sampling, when using the fishing rod type delivery device, only one counterweight 300 is needed to complete the work of all samplers 102. In addition, when the first embodiment is unchanged, the sampling tube 100 and the buoyancy 200 are also detachable, that is, during manual sampling, only one counterweight 300 and the sampling tube 100 are needed, and multiple samplers 102 and the buoyancy 200 are needed to complete multiple groups of sampling. Not only is the equipment itself light, but the materials and materials that need to be carried are also greatly reduced. For example, the sealing film at the end of the second pipeline can be re-bonded after use, or the end of the second pipeline provided with the sealing film is detachable and replaced after use.

[0064] In one embodiment of the present invention, Figure 2 and Figure 4 As shown,

[0065] An annular groove 205 is provided at the peripheral side of the end of the buoyancy cylinder 201, and a first airbag 206 without gas inside is fixedly provided in the groove 205. The first airbag 206 is connected to the gas control mechanism 204 through a first pipe 208, and the center of the end of the buoyancy cylinder 201 is fixedly connected to the recovery rope 600. Considering that the buoyancy cylinder 201 needs to be connected to the recovery rope 600, the first airbag 206 adopts an annular structure, and an annular groove 205 is provided at the end of the buoyancy cylinder 201 to place the unexpanded first airbag 206, so that the first airbag 206 is not cluttered, which is convenient for the launch operation and also reduces the wind resistance during the launch.

[0066] In one embodiment of the present invention, Figure 8 As shown,

[0067] The launching device also includes a rod body 402, a hanging ring 401 is arranged at the front end of the rod body 402, and a reeling mechanism 403 is arranged at the rear end of the rod body 402. The end of the reeling rope 600 is tied on the reeling mechanism 403, and the front end of the reeling rope 600 is fixedly connected to the buoyancy part 200. The launching device is portable, light and easy to carry, and the principle is similar to that of a sea fishing rod. The reeling rope 600 can be tied or clamped to the buoyancy part 200, and the rod body 402 can be telescopic. After the staff extends the rod body 402, they hold the end and fix the reeling mechanism 403, and after swinging forward, they release the reeling mechanism 403, and pull the reeling mechanism 403 back to release the line under the kinetic energy of the sampling device itself, and fly forward at the same time. Of course, before launching, the sampling device needs to be shaken vigorously along the central axis direction, and observe whether the waterproof tearable film 214 is broken, that is, gas can be generated in the gas chamber 210 after launching. When recovering, just turn the reeling mechanism 403.

[0068] In one embodiment of the present invention, Fig. 9 As shown,

[0069] The launching device includes a launching tube 501, the inner diameter of the launching tube 501 is larger than the outer diameter of the sampling tube 100, the bottom end of the launching tube 501 is connected to the pressure chamber 504, the pressure chamber 504 is connected to the air supply mechanism, a winding shaft 502 is arranged in the pressure chamber 504, the end of the recovery rope 600 is tied to the winding shaft 502, the front end of the recovery rope 600 is fixedly connected to the buoyancy part 200, the winding shaft 502 is rotatably fixed in the pressure chamber 504, the winding shaft 502 is provided with a winding frame 505 corresponding to the end of the launching tube 501, a take-up motor 503 is fixedly installed outside the pressure chamber 504, and one end of the winding shaft 502 passes through the pressure chamber 504 and is drivingly connected to the output shaft of the take-up motor 503. The launching device is a pneumatic launching device, which can be arranged on a vehicle, a ship, a shore, etc. The launching device mainly places the sampling device in the launching tube 501. The pressure chamber 504 in the launching tube 501 is mainly used to install the recovery reel 502. After the pressure chamber 504 is connected with the air supply mechanism, air pressure is supplied through the air supply mechanism, so that the sampling device can fly out.

[0070] The air supply mechanism can use a high-pressure air source, such as a gas tank, etc., and an air pump can also be set for inflation. The patent previously applied by our company also discloses this pneumatic launch mechanism, which belongs to the prior art and will not be described in detail. A winding frame 505 is fixed on the winding shaft 502 in the pressure chamber 504, and the winding shaft 502 is connected to the take-up motor 503 by transmission. In this application, the motor is located outside. Of course, if the pressure chamber 504 is large enough, the motor can also be set inside, but attention should be paid to the sealing of the pressure chamber 504. When the sampling device is launched, the recovery rope 600 will pull the winding shaft 502 to rotate, that is, it is necessary to drive the motor to rotate when it is not powered, which will inevitably reduce the launch distance. A clutch can be set between the take-up motor 503 and the winding shaft 502 transmission, so that the winding axis rotates during the launch, and the take-up motor 503 does not need to rotate with it, which can increase the launch distance of the sampling device.

[0071] There are two ways to control the fixed delivery device, one is on-site operation and the other is remote control. When operating on-site, the delivery device can be stored in a box or other structure, and buttons are set on the box corresponding to the air supply mechanism and the wire-receiving motor 503 for direct operation. When operating remotely, a video device is needed to observe the on-site situation and remotely perform wired or wireless control.

[0072] When the delivery device is remotely controlled, a platform needs to be built in front of it. The platform is slightly concave downwards. After the sampling device is pulled back, even if the motor does not work, the sampling device will not roll down due to automatic gravity or other reasons.

[0073] A protrusion 506 is provided on the inner wall of the bottom of the launching tube 501. The protrusion 506 prevents the sampling tube 100 from falling into the pressure chamber 504. The protrusion 506 is an annular structure. The protrusion 506 is at the bottom of the launching tube 501 to prevent the launching tube 501 from directly sliding into the pressure chamber 504. The launching tube 501 should be long enough to provide the sampling device with a more stable trajectory and force when launching.

[0074] In the present invention, unless otherwise clearly stipulated and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0075] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multifunctional river water sediment content sampling device, comprising a delivery device and a sampling device, characterized in that: The launching device is used to provide an initial velocity to the sampling device, the launching device comprises a recovery rope (600) for pulling the sampling device, the sampling device comprises a sampling cylinder (100), a counterweight portion (300) is arranged at the front end of the sampling cylinder (100), a buoyancy portion (200) is arranged at the end of the sampling cylinder (100), and a sampler (102) is arranged inside the sampling cylinder (100); The buoyancy part (200) comprises a buoyancy cylinder (201) movably connected to the end of the sampling cylinder (100); the front half of the buoyancy cylinder (201) connected to the sampling cylinder (100) is an operating chamber (202); the rear half of the buoyancy cylinder (201) is provided with a gas-making mechanism (204); the end of the buoyancy cylinder (201) is provided with a first air bag (206) connected to the gas-making mechanism (204); the first air bag (206) is connected to the gas-making mechanism (204) through a first pipe (208); The gas-making mechanism (204) comprises a gas-making chamber (210) arranged in the buoyancy cylinder (201); the gas-making chamber (210) is a spherical structure; the gas-making chamber (210) is filled with water (212), and the water (212) does not exceed half of the volume of the gas-making chamber (210); a storage chamber (215) is arranged on one side of the gas-making chamber (210) close to the sampling cylinder (100); the storage chamber (215) An effervescent disintegrant (216) is placed inside, the connection between the storage cavity (215) and the gas-making cavity (210) is sealed by a waterproof and tearable film, the effervescent disintegrant (216) is prepared into a block structure, a first gas outlet pipe (209) is arranged in the gas-making cavity (210), the length of the first gas outlet pipe (209) is equal to the radius of the gas-making cavity (210), and the first pipeline (208) is connected to the first gas outlet pipe (209); A blocking mechanism is provided inwardly at the first water inlet (104) on the shell (101) of the sampling cylinder (100), the blocking mechanism comprising a mounting plate (106) provided at the first water inlet (104), the two ends of the mounting plate (106) being respectively fixedly connected to the sampling cylinder (100), a second airbag (105) without gas being fixedly provided on the inner side of the mounting plate (106), a second pipe (107) being provided in the sampling cylinder (100), one end of the second pipe (107) being connected to the second airbag (105), one end of the second pipe (107) extending into the operating chamber (202), a sealing film (108) being provided at one end of the second pipe (107) located in the operating chamber (202), the sealing film (108) delaying the time for gas to enter the second airbag (105); A second air outlet pipe (211) is arranged in the air making chamber (210), and the length of the second air outlet pipe (211) is equal to the radius of the air making chamber (210). A third pipe (213) is arranged outside the air making chamber (210) in the operating chamber (202), and the third pipe (213) is connected to the second air outlet pipe (211), and the third pipe (213) is movably connected to the second pipe (107).

2. The multifunctional river water sediment content sampling device according to claim 1, characterized in that: The launching device comprises a launching tube (501), the inner diameter of the launching tube (501) is larger than the outer diameter of the sampling tube (100), the bottom end of the launching tube (501) is communicated with a pressure chamber (504), the pressure chamber (504) is communicated with an air supply mechanism, a winding shaft (502) is arranged in the pressure chamber (504), the end of the recovery rope (600) is tied to the winding shaft (502), the front end of the recovery rope (600) is fixedly connected to the buoyancy part (200), the winding shaft (502) is rotatably fixed in the pressure chamber (504), a winding frame (505) is arranged on the winding shaft (502) corresponding to the end of the launching tube (501), a take-up motor (503) is fixedly installed outside the pressure chamber (504), and one end of the winding shaft (502) passes through the pressure chamber (504) and is drivingly connected to the output shaft of the take-up motor (503).

3. The multifunctional river water sediment content sampling device according to claim 1, characterized in that: The sampling tube (100) comprises a cylindrical shell (101), one end of the shell (101) is reserved with an opening, a sampler (102) is slidably inserted into the shell (101) through the opening, the cross-sectional structure of the sampler (102) matches the internal structure of the shell (101), a limit mechanism for limiting the rotation of the sampler (102) is arranged inside the shell (101), a first water inlet (104) is provided near the tail area of ​​the shell (101), a second water inlet (103) is arranged on the sampler (102) corresponding to the first water inlet (104), and a sealing plate (112) is movably arranged at the opening to prevent the sampler (102) from detaching.

4. The multifunctional river water sediment content sampling device as claimed in claim 3, characterized in that: An annular groove (205) is arranged on the peripheral side of the end of the buoyancy tube (201), and a first air bag (206) without gas inside is fixedly arranged in the groove (205).

5. The multifunctional river water sediment content sampling device as claimed in claim 4, characterized in that: The waterproof and tearable film is made of aluminum film, the storage cavity (215) is made of a transparent material, and the operating cavity (202) is provided with an operating window (203).

6. The multifunctional river water sediment content sampling device according to claim 5, characterized in that: The sealing film (108) is made of latex film; a puncturing mechanism (109) is arranged in the second pipe (107) corresponding to the sealing film (108), and the puncturing mechanism (109) includes a spike fixed on the inner wall of the second pipe (107), the tip of the spike faces the center of the sealing film (108), and the spike does not contact the sealing film (108) when it is not deformed.

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