Layered sampling device for underground water monitoring

Abstract

The utility model provides a layered sampling device for underground water monitoring, which relates to the field of layered sampling equipment for underground water monitoring and comprises a hoisting component and a sampling barrel, the hoisting component comprises a support, a pay-off roller, a rope, a servo motor, a driving gear, a driven gear and a transmission rod, the servo motor, the driving gear, the driven gear and the transmission rod are used for providing power for the pay-off roller, and the pay-off roller and the rope are used for putting a sampling barrel; according to the underground water stratified sampling device, the hoisting assembly, the sampling barrels and the sampling assembly are arranged, the effect of stratified sampling of underground water is achieved, the sampling barrels are in threaded connection, the sampling barrels can be conveniently detached, meanwhile, the situation that the sampling barrels fall off due to the influence of underwater resistance can be prevented, and by arranging the hoisting assembly, the sampling efficiency is improved. The sampling barrel can be put in and stored, so that the labor amount of workers can be reduced, and the underground water can be conveniently sampled.

Description

Technical Field

[0001] The utility model belongs to the field of groundwater monitoring hierarchical sampling equipment, and specifically relates to a hierarchical sampling device for groundwater monitoring. Background Technique

[0002] A groundwater sampling device is a tool used to collect groundwater samples for analysis and evaluation. Through the sampling device, groundwater samples at different depths can be effectively collected, providing important data support for water quality analysis and environmental monitoring. It is mostly used in fields such as environmental monitoring and water resource management;

[0003] According to the Chinese patent application number: 202223238426.X, a groundwater layered sampling device is disclosed, which includes a first sampling cylinder. A second sampling cylinder is arranged on one side of the first sampling cylinder. The outer shapes and sizes of the first sampling cylinder and the second sampling cylinder are the same. By setting solenoid valves, a first liquid delivery channel, a water pump, a liquid outlet pipe, a second liquid delivery channel, a partition plate, a first inner cavity and a second inner cavity, automatic groundwater sampling is realized. Among them, the water pump will further improve the groundwater sampling efficiency; by setting a bottom plate, a top cover, a first connecting shaft, a lifting lug, a mounting hole, a second connecting shaft, a first magnet and a second magnet, the first sampling cylinder and the second sampling cylinder are fixed, which is convenient for installation and disassembly. Both the first sampling cylinder and the second sampling cylinder can sample groundwater at different layers, realizing the function of layered sampling of groundwater;

[0004] The prior art effectively solves the problem that when sampling, it is necessary for manual operation to open and close the lid of the sampling cup by pulling a rope, which is not automated, the operation is rather cumbersome and inconvenient to use. It has the advantage of being able to automatically collect water samples. However, this kind of sampler needs to be sampled by manual throwing and retrieving methods, and the sampling cylinders are magnetically connected to each other, which is prone to falling off when under resistance underwater, thus bringing inconvenience to use.

[0005] In summary, therefore, the utility model provides a hierarchical sampling device for groundwater monitoring to solve the above problems. Content of the Utility Model

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A hierarchically separable sampling device for groundwater monitoring, comprising a hoisting assembly and a sampling cylinder. The hoisting assembly includes a bracket, a wire reel, a rope, a servo motor, a driving gear, a driven gear and a transmission rod. The servo motor, the driving gear, the driven gear and the transmission rod are used to provide power for the wire reel. The wire reel and the rope are used to lower the sampling cylinder. The sampling cylinder includes a first sampling tube, a second sampling tube, a connecting sleeve, a top cover and a bottom cover. The connecting sleeve is located between the first sampling tube and the second sampling tube, and both ends of the connecting sleeve are threadedly connected to the first sampling tube and the second sampling tube respectively. The top cover is located at the top of the first sampling tube and is threadedly connected to the first sampling tube. One end of the rope away from the wire reel is fixedly connected to the top cover. The bottom cover is located at the bottom of the second sampling tube and is threadedly connected to the second sampling tube. Sampling assemblies are installed in the inner cavities of the first sampling tube and the second sampling tube, and the sampling assemblies are used to collect water samples.

[0008] Further, in the present utility model, the number of the brackets is two. The wire reel is located between the two brackets. One end of the wire reel is movably connected to one side of the bracket through a bearing, and the rope is wound around the surface of the wire reel.

[0009] Further, in the present utility model, the hoisting assembly further includes a protective cover, a guide wheel and a support rod. The protective cover is fixed on the surface of the other bracket. The servo motor is fixed on the surface of the protective cover. The driving gear, the driven gear and the transmission rod are all installed in the inner cavity of the protective cover.

[0010] Further, in the present utility model, one end of the transmission rod is fixedly connected to the driven gear, and the other end of the transmission rod penetrates to the outside of the protective cover and is fixedly connected to the wire reel. The driving gear meshes with the driven gear, and the output shaft of the servo motor penetrates to the inner cavity of the protective cover and is in transmission connection with the driving gear.

[0011] Further, in the present utility model, one end of the support rod is fixedly connected to one side of the bracket, and the other end of the support rod is movably connected to the guide wheel through a bearing. The rope extends into the inner cavity of the guide wheel and is slidably connected to the inner cavity of the guide wheel.

[0012] Further, in the present utility model, one end of the water inlet pipe is communicated with the water inlet of the micro water pump, and the other end of the water inlet pipe penetrates to the outside of the sampling cylinder. The solenoid valve is installed on the surface of the water inlet pipe. Both ends of the water outlet pipe are communicated with the water outlet of the micro water pump and the inner cavity of the sample storage cylinder respectively. One end of the drain pipe is communicated with the inner cavity of the sample storage cylinder. The drain valve is installed on the surface of the drain pipe.

[0013] Beneficial effects: The present utility model has the following beneficial effects:

[0014] The utility model has achieved the effect of stratified sampling of groundwater by setting a hoisting component, a sampling cylinder and a sampling assembly. The first sampling pipe and the bottom cover cooperate with the sampling assembly to collect groundwater. The threaded connection between the sampling cylinders not only facilitates disassembly, but also prevents detachment under the influence of underwater resistance. By setting the hoisting component, the effect of being able to put and store the sampling cylinder is achieved, thus reducing the labor intensity of manual work and facilitating the sampling operation of groundwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the utility model;

[0016] Figure 2 is the separated state structural schematic diagram of the sampling cylinder of the utility model;

[0017] Figure 3 is the front sectional view structural schematic diagram of the first sampling pipe of the utility model;

[0018] Figure 4 is the separated state structural schematic diagram of the hoisting component of the utility model.

[0019] In the figure:

[0020] 1. Hoisting component; 101. Bracket; 102. Pay-off reel; 103. Rope; 104. Protective cover; 105. Servo motor; 106. Driving gear; 107. Driven gear; 108. Transmission rod; 109. Guide wheel; 110. Support rod; 2. Sampling cylinder; 201. First sampling pipe; 202. Second sampling pipe; 203. Connecting sleeve; 204. Top cover; 205. Bottom cover; 3. Sampling assembly; 301. Sample storage cylinder; 302. Micro water pump; 303. Water inlet pipe; 304. Water outlet pipe; 305. Solenoid valve; 306. Drain pipe; 307. Drain valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to better understand the technical content of the present utility model, specific embodiments are hereby given and described in conjunction with the accompanying drawings as follows. In the present disclosure, various aspects of the present utility model are described with reference to the drawings, and many illustrative embodiments are shown in the drawings. The embodiments of the present disclosure do not necessarily define all aspects of the present utility model. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present utility model are not limited to any implementation manner. In addition, some aspects of the present utility model can be used alone, or in any appropriate combination with other aspects of the present utility model.

[0022] Embodiment 1

[0023] As Figures 1-4 shown, this is the first embodiment of the present utility model. This embodiment provides a hierarchical sampling device for groundwater monitoring, which includes a hoisting assembly 1 and a sampling cylinder 2. The hoisting assembly 1 includes a bracket 101, a wire reel 102, a rope 103, a servo motor 105, a driving gear 106, a driven gear 107, and a transmission rod 108. The servo motor 105, the driving gear 106, the driven gear 107, and the transmission rod 108 are used to provide power for the wire reel 102. The wire reel 102 and the rope 103 are used to lower the sampling cylinder 2. The sampling cylinder 2 includes a first sampling tube 201, a second sampling tube 202, a connecting sleeve 203, a top cover 204, and a bottom cover 205. The connecting sleeve 203 is located between the first sampling tube 201 and the second sampling tube 202. The two ends of the connecting sleeve 203 are respectively threadedly connected to the first sampling tube 201 and the second sampling tube 202. The top cover 204 is located at the top of the first sampling tube 201 and is threadedly connected to the first sampling tube 201. One end of the rope 103 away from the wire reel 102 is fixedly connected to the top cover 204. The bottom cover 205 is located at the bottom of the second sampling tube 202 and is threadedly connected to the second sampling tube 202. Sampling assemblies 3 are installed in the inner cavities of both the first sampling tube 201 and the second sampling tube 202. The sampling assemblies 3 are used to collect water samples.

[0024] As Figures 1-4 shown, the output shaft of the servo motor 105 rotates to drive the driving gear 106 to rotate. When the driving gear 106 rotates, it drives the driven gear 107 to rotate. When the driven gear 107 rotates, it drives the wire reel 102 to rotate through the transmission rod 108, so that the wire reel 102 can drive the rope 103 to take in or pay out the line, and thus the sampling cylinder 2 can be lowered or retracted. A counterweight can be provided at the bottom of the bottom cover 205 to accelerate the sinking speed of the sampling cylinder 2. A controller can also be installed on the surface of the bracket 101 to control the start and stop of the sampling assemblies 3. After the sampling cylinder 2 sinks to the designated position, the groundwater is collected by the sampling assemblies 3. The first sampling tube 201 and the second sampling tube 202 cooperate with the sampling assemblies 3 to collect groundwater at different levels respectively. The connecting sleeve 203 is used to connect the first sampling tube 201 and the second sampling tube 202, and can also be continuously extended at the bottom of the second sampling tube 202 through the connecting sleeve 203, so as to enable multi-level sampling. The threaded connection between the sampling cylinders 2 can not only facilitate disassembly, but also prevent detachment due to the influence of underwater resistance, thus bringing convenience to groundwater sampling.

[0025] Embodiment 2

[0026] Referring to Figure 1 and 4 , this is the second embodiment of the present utility model. This embodiment is based on the previous embodiment.

[0027] In this embodiment, the number of brackets 101 is two. The wire pay-off reel 102 is located between the two brackets 101. One end of the wire pay-off reel 102 is movably connected to one side bracket 101 through a bearing, and the rope 103 is wound around the surface of the wire pay-off reel 102.

[0028] The hoisting assembly 1 further includes a protective cover 104, a guide wheel 109 and a support rod 110. The protective cover 104 is fixed on the surface of the other side bracket 101, the servo motor 105 is fixed on the surface of the protective cover 104, and the driving gear 106, the driven gear 107 and the transmission rod 108 are all installed in the inner cavity of the protective cover 104.

[0029] One end of the transmission rod 108 is fixedly connected to the driven gear 107, the other end of the transmission rod 108 penetrates to the outside of the protective cover 104 and is fixedly connected to the wire pay-off reel 102. The driving gear 106 meshes with the driven gear 107, and the output shaft of the servo motor 105 penetrates to the inner cavity of the protective cover 104 and is in transmission connection with the driving gear 106.

[0030] One end of the support rod 110 is fixedly connected to one side bracket 101, the other end of the support rod 110 is movably connected to the guide wheel 109 through a bearing, the rope 103 extends into the inner cavity of the guide wheel 109 and is slidably connected to the inner cavity of the guide wheel 109.

[0031] As Figure 1 and 4 shown, the rotation of the output shaft of the servo motor 105 drives the driving gear 106 to rotate. When the driving gear 106 rotates, it drives the driven gear 107 to rotate. When the driven gear 107 rotates, it drives the wire pay-off reel 102 to rotate through the transmission rod 108, so that the wire pay-off reel 102 can drive the rope 103 to perform wire winding or wire pay-off operations. The guide wheel 109 can guide the movement track of the rope 103. The protective cover 104 can support the servo motor 105 and also provide protection for the driving gear 106 and the driven gear 107. The forward rotation of the output shaft of the servo motor 105 can make the wire pay-off reel 102 drive the rope 103 to wind the wire, and the reverse rotation of the output shaft of the servo motor 105 can make the wire pay-off reel 102 pay off the rope 103.

[0032] Embodiment 3

[0033] Referring to Figure 3 , this is the third embodiment of the present utility model, and this embodiment is based on the first two embodiments.

[0034] In this embodiment, the sampling assembly 3 includes a sample storage cylinder 301, a micro water pump 302, a water inlet pipe 303, a water outlet pipe 304, a solenoid valve 305, a drain pipe 306 and a drain valve 307. The sample storage cylinder 301 is fixedly connected to the inner wall of the sampling cylinder 2. The micro water pump 302 is fixed to the top of the sample storage cylinder 301. Both the drain pipe 306 and the drain valve 307 are located at the bottom of the sample storage cylinder 301.

[0035] One end of the water inlet pipe 303 is communicated with the water inlet of the micro water pump 302, and the other end of the water inlet pipe 303 penetrates to the outside of the sampling cylinder 2. The solenoid valve 305 is installed on the surface of the water inlet pipe 303. Both ends of the water outlet pipe 304 are respectively communicated with the water outlet of the micro water pump 302 and the inner cavity of the sample storage cylinder 301. One end of the drain pipe 306 is communicated with the inner cavity of the sample storage cylinder 301. The drain valve 307 is installed on the surface of the drain pipe 306.

[0036] As Figure 3 shown, after the sampling cylinder 2 reaches the designated position, the micro water pump 302 and the solenoid valve 305 are started through an external controller. After the solenoid valve 305 is opened, the centrifugal force generated by the high-speed rotation of the micro water pump 302 drives the groundwater to flow through the water inlet pipe 303 and the water outlet pipe 304 into the inner cavity of the sample storage cylinder 301, so that the groundwater can be sampled. Sampling assemblies 3 are arranged in the inner cavities of both the first sampling pipe 201 and the bottom cover 205, so that the groundwater can be sampled in layers, and the mixing of water samples can also be prevented.

[0037] During use, the output shaft of the servo motor 105 rotates in reverse to drive the driving gear 106 to rotate. When the driving gear 106 rotates, it drives the driven gear 107 to rotate. When the driven gear 107 rotates, it drives the wire reel 102 to rotate through the transmission rod 108, so that the wire reel 102 can drive the rope 103 to unwind. At this time, the sampling cylinder 2 gradually sinks. After the sampling cylinder 2 reaches the designated position, the micro water pump 302 and the solenoid valve 305 are started through an external controller. After the solenoid valve 305 is opened, the centrifugal force generated by the high-speed rotation of the micro water pump 302 drives the groundwater to flow through the water inlet pipe 303 and the water outlet pipe 304 into the inner cavity of the sample storage cylinder 301, so that the groundwater can be sampled. Sampling assemblies 3 are arranged in the inner cavities of both the first sampling pipe 201 and the bottom cover 205, so that the groundwater can be sampled in layers. After sampling, by controlling the closing of the water inlet pipe 303 and the solenoid valve 305, the inner cavity of the sample storage cylinder 301 can be sealed. Then, the sampling cylinder 2 is recovered through the lifting assembly 1. After the sampling cylinder 2 is recovered and disassembled, the water sample can be discharged through the drain pipe 306 and the drain valve 307.

[0038] The standard parts used in this application document can all be purchased from the market, and can also be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The control method is to automatically control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common general knowledge in this field. Moreover, this application document is mainly used to protect the mechanical device, so the control method and circuit connection will not be explained in detail in this application document.

[0039] Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Those with ordinary knowledge in the technical field to which the present utility model pertains can make various modifications and refinements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to what is defined by the claims.

Claims

1. A hierarchical sampling device for groundwater monitoring, comprising a hoisting assembly (1) and a sampling cylinder (2), characterized in that: The hoisting assembly (1) includes a bracket (101), a wire reel (102), a rope (103), a servo motor (105), a driving gear (106), a driven gear (107) and a transmission rod (108). The servo motor (105), the driving gear (106), the driven gear (107) and the transmission rod (108) are used to provide power to the wire reel (102). The wire reel (102) and the rope (103) are used to drop the sampling cylinder (2). The sampling cylinder (2) includes a first sampling tube (201), a second sampling tube (202), a connecting sleeve (203), a top cover (204) and a bottom cover (205). The connecting sleeve (203) is located between the first sampling tube (201) and the second sampling tube (202). Both ends of the connecting sleeve (203) are threadedly connected to the first sampling tube (201) and the second sampling tube (202) respectively. The top cover (204) is located at the top of the first sampling tube (201) and is threadedly connected to the first sampling tube (201). One end of the rope (103) away from the wire reel (102) is fixedly connected to the top cover (204). The bottom cover (205) is located at the bottom of the second sampling tube (202) and is threadedly connected to the second sampling tube (202). Sampling assemblies (3) are installed in the inner cavities of the first sampling tube (201) and the second sampling tube (202). The sampling assemblies (3) are used to collect water samples.

2. The hierarchical sampling device for groundwater monitoring according to claim 1, wherein: The number of the brackets (101) is two. The wire reel (102) is located between the two brackets (101). One end of the wire reel (102) is movably connected to one side of the bracket (101) through a bearing. The rope (103) is wound around the surface of the wire reel (102).

3. The hierarchical sampling device for groundwater monitoring according to claim 1, characterized in that: The hoisting assembly (1) further includes a protective cover (104), a guide wheel (109) and a support rod (110). The protective cover (104) is fixed to the surface of the other bracket (101). The servo motor (105) is fixed to the surface of the protective cover (104). The driving gear (106), the driven gear (107) and the transmission rod (108) are all installed in the inner cavity of the protective cover (104).

4. The hierarchical sampling device for groundwater monitoring according to claim 3, wherein: One end of the transmission rod (108) is fixedly connected to the driven gear (107). The other end of the transmission rod (108) penetrates to the outside of the protective cover (104) and is fixedly connected to the wire reel (102). The driving gear (106) meshes with the driven gear (107). The output shaft of the servo motor (105) penetrates to the inner cavity of the protective cover (104) and is in transmission connection with the driving gear (106).

5. The hierarchical sampling device for groundwater monitoring according to claim 3, wherein: One end of the support rod (110) is fixedly connected to one side of the bracket (101). The other end of the support rod (110) is movably connected to the guide wheel (109) through a bearing. The rope (103) extends into the inner cavity of the guide wheel (109) and is slidably connected to the inner cavity of the guide wheel (109).

6. The hierarchical sampling device for groundwater monitoring according to claim 1, wherein: The sampling component (3) includes a sample storage cylinder (301), a micro water pump (302), a water inlet pipe (303), a water outlet pipe (304), a solenoid valve (305), a drain pipe (306) and a drain valve (307). The sample storage cylinder (301) is fixedly connected to the inner wall of the sampling cylinder (2). The micro water pump (302) is fixed on the top of the sample storage cylinder (301). The drain pipe (306) and the drain valve (307) are both located at the bottom of the sample storage cylinder (301).

7. The sampling device for hierarchical groundwater monitoring according to claim 6, characterized in that: One end of the water inlet pipe (303) is communicated with the water inlet of the micro water pump (302). The other end of the water inlet pipe (303) penetrates to the outside of the sampling cylinder (2). The solenoid valve (305) is installed on the surface of the water inlet pipe (303). Both ends of the water outlet pipe (304) are communicated with the water outlet of the micro water pump (302) and the inner cavity of the sample storage cylinder (301) respectively. One end of the drain pipe (306) is communicated with the inner cavity of the sample storage cylinder (301). The drain valve (307) is installed on the surface of the drain pipe (306).

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