A portable shallow sampling device for hydrogeological information mapping services

Abstract

The present application relates to the technical field of geographic surveying and mapping equipment, and discloses a portable shallow sampling device for hydrogeological information surveying and mapping services, which comprises a shell, a plurality of collection bottles arranged in an annular array at the bottom of the shell, and a sampling mechanism arranged in the shell; the sampling mechanism comprises a handle arranged at the top of the shell, a vertical rod arranged on the inner wall of the handle, a tension spring sleeved at the top of the vertical rod, the top and bottom of the tension spring being fixedly connected with the handle and the vertical rod respectively, a latch arranged on the inner wall of the top of the shell, an ejection spring arranged on the side of the latch away from the vertical rod, a driving wheel arranged at the bottom of the vertical rod, a pawl arranged on the side of the bottom of the vertical rod close to the driving wheel, a spring piece arranged in the middle of the pawl, the two ends of the spring piece being fixedly connected with the pawl and the vertical rod respectively, a ratchet wheel arranged on the side of the driving wheel close to the pawl, and a bottle plug arranged on the inner wall of the collection bottle. Through the arrangement of the sampling mechanism, rapid switching of multipoint sampling is realized, and the collection amount of the water body can be observed intuitively.

Description

Technical Field

[0001] This invention relates to the field of geographic surveying equipment technology, and in particular to a portable shallow sampling device for hydrogeological information surveying services. Background Technology

[0002] Existing water sampling devices are primarily used to obtain representative water samples from bodies of water such as rivers, lakes, reservoirs, or oceans to support subsequent water quality analysis and environmental monitoring. Common manual samplers include water samplers, simple water buckets, and horizontal samplers. Operators submerge the sampler to a predetermined depth and then lift it to collect a water sample. Some devices are equipped with ropes and graduated markings to control the sampling depth. Automatic samplers typically consist of a controller, a peristaltic pump or solenoid valve, and sample vials. They can automatically extract and dispense water samples at preset time intervals or flow rates. In addition, some sampling devices integrate temperature or pressure sensors to record basic water parameters during sampling. Sampling vials and sample storage devices are used to store the collected water samples to prevent contamination or leakage during transportation. These devices provide basic sampling methods for water quality monitoring, pollution source tracing, and ecological assessment.

[0003] Traditional sampling devices are widely used in geological surveying, but due to limitations in their structure and working principle, they often have some unavoidable problems. Existing water sampling devices have several limitations in practical applications. Regarding portability, some manual samplers have relatively simple structures, but automatic sampling equipment often integrates peristaltic pumps, control modules, and multiple sample bottles, resulting in a larger overall size and heavier weight, making them difficult to carry in the field and increasing the burden on operators during long-distance hiking or multi-point relocation. Regarding multi-point sampling, traditional manual samplers can usually only sample one point at a time. To collect water samples from different locations, repeated retrieval, cleaning, and re-deployment of the sampler is required, making the operation process cumbersome and difficult to achieve rapid and continuous workstation switching. While some automatic samplers can dispense multiple bottles, their pipeline switching mechanism is fixed inside the equipment, and the spatial layout of sampling points is limited by pipeline length, making it difficult to flexibly adapt to irregular site environments. Regarding water volume observation, many sampling devices lack a visual liquid level indicator structure, making it difficult for operators to understand the collected water volume in real time during the sampling process. They often need to use an external measuring cylinder for secondary measurement, which increases the sample transfer process and the risk of error. Even if some containers have graduations, accurate readings are often impossible due to water sloshing or poor observation position, which restricts the efficiency and convenience of sampling operations. Summary of the Invention

[0004] Given the problems of existing technologies, such as the inconvenience of switching sampling devices when sampling at multiple points and the inconvenience of real-time monitoring of the collected water volume during the sampling process, a portable shallow sampling device for hydrogeological information mapping services is proposed.

[0005] The purpose is to make the acquisition device portable, enable quick switching between multiple acquisition points, and allow for intuitive observation of the sample collection volume.

[0006] The technical solution of the present invention is a portable shallow sampling device for hydrogeological information mapping services, including a shell, a plurality of collection bottles arranged in a ring array at the bottom of the shell, and a sampling mechanism disposed inside the shell. The sampling mechanism includes a handle located on the top of the outer casing, a vertical rod located on the inner wall of the handle, a tension spring sleeved on the top of the vertical rod, with the top and bottom of the tension spring fixedly connected to the handle and the vertical rod respectively, a pin located on the inner wall of the top of the outer casing, a push-out spring located on the side of the pin away from the vertical rod, a drive wheel located at the bottom of the vertical rod, a pawl located on the side of the bottom of the vertical rod near the drive wheel, a spring piece located in the middle of the pawl, with both ends of the spring piece fixedly connected to the pawl and the vertical rod respectively, a ratchet located on the side of the drive wheel near the pawl, a bottle stopper located on the inner wall of the collection bottle, one-way valves obliquely and symmetrically located on the top and bottom of the bottle stopper, a pull rod located on the top of the bottle stopper, a sealing ring located on the lower part of the outer casing near the middle of the pull rod, a connecting plate located on the top of the pull rod, a rack located on the side of the connecting plate away from the pull rod, a damping strip located on the inner wall of the outer casing near the top of the rack, and an indicator unit located on the upper part of the middle of the outer casing.

[0007] Furthermore, the handle has several slots arranged in a circular array near the pin, and the side of the pin away from the ejector spring abuts against the slot.

[0008] Furthermore, the one-way valve consists of a valve plate and a preload spring, and the two one-way valves on the same stopper are in opposite directions.

[0009] Furthermore, a positioning groove is provided at the center of the top of the bottle stopper, and sliders are symmetrically arranged on the inner wall of the positioning groove. A sliding groove is symmetrically arranged at the bottom of the pull rod, and the inner wall of the sliding groove is slidably connected to the slider.

[0010] Furthermore, a limiting hole is provided on the side of the connecting plate near the pull rod, and the top end of the pull rod is rotatably connected to the limiting hole.

[0011] Furthermore, the indicating unit includes several circular arrays of windows opened in the upper middle part of the housing, a lifting rod set on the top of the rack, a collar set on the housing near the bottom of the windows, and a pointer set on the top of the lifting rod.

[0012] Furthermore, a sliding hole is provided at the top of the collar, and the inner wall of the sliding hole is slidably connected to the outer wall of the lifting rod.

[0013] Furthermore, the window of the viewing window is provided with a glass cover, and scale lines are provided on both sides of the viewing window.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a sampling mechanism, rapid switching between multiple sampling points is achieved. The sampling mechanism integrates multiple independent sampling channels, each corresponding to a sampling point. The opening and closing of the channels are controlled by external operating components. When sampling is required at different locations, the operator only needs to adjust the state of the sampling mechanism to open the corresponding sampling path. This structural design avoids the cumbersome process of frequently moving the entire device or changing the sampling container required by traditional equipment. In continuous operation, the sampling mechanism can maintain the independence of samples at each point and prevent cross-mixing, thereby ensuring the continuity and efficiency of sampling work and adapting to the needs of multi-point, large-scale water body monitoring.

[0015] 2. By setting up an indicator unit, the water collection volume can be observed intuitively. The indicator unit is linked to the sampling container and uses the principle of communicating vessels or a scale display method to reflect the liquid level inside the container in real time. During the sampling process, the operator does not need to interrupt the operation or open the container. By observing the displayed value of the indicator unit, the operator can accurately judge the current water collection progress. This design solves the problem of difficulty in estimating the sampling volume in deep or closed environments, ensuring that each sampling can reach the predetermined volume standard, providing a quantitatively accurate basic sample for subsequent water quality analysis, and also helping the operator to keep abreast of the operating status of the sampling device.

[0016] 3. By setting up a sampling device, the design of the vertical rod and handle simplifies the sampling operation process. The operator can simply hold the handle to immerse the device in water and press the vertical rod to start the sampling action. The vertical rod reset process automatically completes the water sample collection without the need for additional power or complicated steps. The handle also supports rotation to switch between different sampling positions, realizing multi-point continuous sampling. The entire operation process is smooth and seamless, reducing the operator's hand movements and physical exertion, and improving sampling efficiency and ease of use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a schematic diagram showing the relative positions of the collection bottle and the outer shell of the present invention; Figure 3 This is a schematic diagram of the internal structure of the outer shell of the present invention; Figure 4 This is a schematic diagram of the pin structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the handle of the present invention; Figure 6 This is a schematic diagram showing the connection between the vertical rod and the handle of the present invention; Figure 7 This is a schematic diagram showing the connection between the drive wheel and the vertical rod of the present invention; Figure 8 This is a schematic diagram of the ratchet and pawl structure of the present invention; Figure 9 This is a schematic diagram showing the relative positions of the pull rod and the rack in this invention; Figure 10 This is a schematic diagram of the connection between the connecting plate and the rack of the present invention; Figure 11 This is a schematic diagram of the internal structure of the bottle stopper of the present invention; Figure 12 This is a schematic diagram showing the relative position of the pointer and the window in this invention; Figure 13 This is a schematic diagram of the collar structure of the present invention.

[0018] In the picture: 1. Outer shell; 2. Collection bottle; 3. Sampling mechanism; 31. Handle; 32. Vertical rod; 33. Tension spring; 34. Pin; 35. Ejection spring; 36. Drive wheel; 37. Pawl; 38. Spring; 39. Ratchet; 310. Bottle stopper; 311. One-way valve; 312. Pull rod; 313. Sealing ring; 314. Connecting plate; 315. Rack; 316. Damping strip; 317. Viewing window; 318. Lifting rod; 319. Collar; 320. Pointer. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Example 1, referring to Figures 1-13This invention provides a portable shallow sampling device for hydrogeological information mapping services, comprising a housing 1, a plurality of collection bottles 2 arranged in a ring array and snapped onto the bottom of the housing 1, and a sampling mechanism 3 installed inside the housing 1. The sampling mechanism 3 includes a handle 31 rotatably connected to the top of the housing 1, a vertical rod 32 slidably connected to the inner wall of the handle 31, a tension spring 33 sleeved on the top of the vertical rod 32, the top and bottom of the tension spring 33 being fixedly connected to the handle 31 and the vertical rod 32 respectively, a pin 34 slidably connected to the inner wall of the top of the housing 1, a push-out spring 35 fixedly connected to the side of the pin 34 away from the vertical rod 32, a drive wheel 36 rotatably connected to the bottom of the vertical rod 32, and a pawl rotatably connected to the side of the bottom of the vertical rod 32 near the drive wheel 36. 37, a spring piece 38 fixedly connected to the middle of the pawl 37, with both ends of the spring piece 38 fixedly connected to the pawl 37 and the vertical rod 32 respectively, a ratchet 39 fixedly connected to the drive wheel 36 near the pawl 37, a bottle stopper 310 slidably connected to the inner wall of the collection bottle 2, a one-way valve 311 obliquely and symmetrically fixedly connected to the top and bottom of the bottle stopper 310, a pull rod 312 snapped onto the top of the bottle stopper 310, a sealing ring 313 fixedly connected to the lower part of the outer casing 1 near the middle of the pull rod 312, a connecting plate 314 rotatably connected to the top of the pull rod 312, a rack 315 fixedly connected to the side of the connecting plate 314 away from the pull rod 312, a damping strip 316 fixedly connected to the inner wall of the outer casing 1 near the top of the rack 315, and an indicator unit assembled in the upper part of the middle of the outer casing 1.

[0021] Specifically, before sampling, the collection bottle 2 is secured to the bottom of the outer casing 1. Then, the bottom of the pull rod 312 is inserted into the top of the bottle stopper 310, and the pull rod 312 is pushed downwards to engage the bottle stopper 310 with the inner wall of the collection bottle 2, moving the bottle stopper 310 to the bottom of the collection bottle 2. As the bottle stopper 310 moves downwards inside the collection bottle 2, the internal pressure of the collection bottle 2 increases, opening the corresponding one-way valve 311 on the bottle stopper 310 to release the internal gas. After all the collection bottles 2 are secured and the air is released through the bottle stoppers 310, water sampling can be performed. During water sampling, the bottom of the outer casing 1 is placed in the water by holding the handle 31. The bottom of the outer casing 1 moves the collection bottle 2 along with it, immersing it in the water. Then, the vertical rod 32 is pressed. The top is lowered, and as the vertical rod 32 moves downward, the tension spring 33 stores force, and the belt drives the drive wheel 36 downward as well. Simultaneously, the drive wheel 36 rotates under the action of the meshing rack 315, which in turn drives the ratchet 39 to rotate. The ratchet 39 lifts the pawl 37 through the inclined surfaces of each tooth, causing the pawl 37 to swing against the preload of the spring 38, thus releasing the lock on the ratchet 39. After pressing the vertical rod 32 to its maximum stroke, the pressing is released. At this point, the vertical rod 32 rises under the action of the tension spring 33 until it returns to its original position. As the vertical rod 32 rises, it also drives the drive wheel 36 upward. In this state, the drive wheel 36 cannot rotate in the opposite direction due to the lock of the ratchet 39 and the pawl 37, and it also rises simultaneously with itself. The gear 315, which meshes with the damping strip 316, is lifted upwards. Overcoming the friction between the gear 315 and the damping strip 316, the gear 315 moves upwards. Simultaneously, the connecting plate 314 drives the pull rod 312 upwards. The pull rod 312, passing through the outer casing 1, is protected by the sealing ring 313 to prevent external water from entering the casing 1. The pull rod 312 drives the connected bottle stopper 310 upwards. Simultaneously, under the pressure difference, external water is drawn into the collection bottle 2 through the corresponding one-way valve 311, achieving sampling. When sampling water from different locations in the same area is required, different collection bottles 2 can be switched and used to collect water samples. This is achieved by holding the top of the casing 1 and then rotating the hand... As the handle 31 rotates, it rotates relative to the pin 34. The arc surface of the slot that engages with the pin 34 presses against the pin 34, causing it to disengage from the slot. After the handle 31 rotates a certain angle, the pin 34 engages with another slot under the action of the ejector spring 35. As the handle 31 rotates, it drives the vertical rod 32 to rotate simultaneously. After the vertical rod 32 rotates a certain angle, it drives the drive wheel 36 to mesh with other racks 315. By driving the other racks 315 to move, the water sample is collected into other collection bottles 2. After the collection is completed, the engagement between the drive wheel 36 and the rack 315 is released. Then, the corresponding pull rod 312 is rotated first, and then the pull rod 312 is moved upward. After the engagement between the pull rod 312 and the bottle stopper 310 is released, the collection bottle 2 is removed.

[0022] Reference Figure 5and Figure 6 The handle 31 has several slots arranged in a ring near the pin 34, and the side of the pin 34 away from the ejector spring 35 abuts against the slot.

[0023] Specifically, the handle 31 is engaged with the pin 34 through a slot, so that it maintains a relatively fixed position relative to the outer casing 1.

[0024] Reference Figure 11 The one-way valve 311 consists of a valve plate and a preload spring, and the two one-way valves 311 on the same stopper 310 are in opposite directions.

[0025] Specifically, as the stopper 310 moves along the inner wall of the collection bottle 2, it releases pressure through two one-way valves 311 in different directions, so that the pressure inside the collection bottle 2 and the outside world are kept in balance.

[0026] Reference Figures 9-11 The bottle stopper 310 has a positioning groove in the center of its top, and sliders are symmetrically arranged on the inner wall of the positioning groove. The bottom end of the pull rod 312 has a sliding groove symmetrically arranged, and the inner wall of the sliding groove is slidably connected to the slider.

[0027] Specifically, the stopper 310 is connected to the connecting rod via a positioning groove and a slider at the top, and the connection between the groove and the slider is easy to disengage quickly.

[0028] Reference Figure 9 and Figure 10 A limit hole is provided on the side of the connecting plate 314 near the pull rod 312, and the top of the pull rod 312 is rotatably connected to the limit hole.

[0029] Specifically, the connecting plate 314 is connected to the pull rod 312 through the limiting hole. The pull rod 312 moves up and down with the connecting plate 314 and has the freedom of rotation.

[0030] Example 2, refer to Figures 1-13 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the indicating unit includes a plurality of circular arrays of windows 317 opened in the upper middle part of the housing 1, a lifting rod 318 fixedly connected to the top of the rack 315, a collar 319 fixedly connected to the bottom of the housing 1 near the window 317, and a pointer 320 fixedly connected to the top of the lifting rod 318.

[0031] Specifically, as the rack 315 moves upward, it also moves the lifting rod 318 upward. The top of the lifting rod 318 is constrained by the collar 319, reducing swaying and shaking. The lifting rod 318 moves the pointer 320 simultaneously. As the pointer 320 moves, its two ends point to the scale lines at different positions on the corresponding viewing window 317. By observing the position of the pointer 320, the amount of water in the corresponding collection bottle 2 can be determined.

[0032] Reference Figures 9-13 The top of the collar 319 is provided with a sliding hole, and the inner wall of the sliding hole is slidably connected to the outer wall of the lifting rod 318.

[0033] Specifically, the collar 319 constrains the lifting rod 318 through the sliding hole, so that it can only move up and down, thus avoiding excessive shaking during its movement.

[0034] Reference Figures 1-12 The window of the window 317 is equipped with a glass cover, and scale lines are provided on both sides of the window 317.

[0035] Specifically, the glass cover seals the viewing window 317, and the scale lines cooperate with the pointer 320 to facilitate reading the water volume in the corresponding collection bottle 2. The rest of the structure is the same as that in Example 1.

[0036] Based on embodiments 1-2, the working principle of the present invention is as follows: During operation, the collection bottle 2 is first snapped into the bottom of the outer shell 1, the bottom end of the pull rod 312 is inserted into the positioning groove at the top of the bottle stopper 310, and connected by the cooperation of the slider and the sliding groove. Then, the pull rod 312 is pushed down, which drives the bottle stopper 310 to move down along the inner wall of the collection bottle 2 to the bottom. During this process, the bottle stopper 310 compresses the gas inside the collection bottle 2, causing the gas to push open the one-way valve 311 above the bottle stopper 310 and be discharged, thus completing the exhaust preparation before sampling.

[0037] During sampling, the bottom of the outer casing 1 along with the collection bottle 2 is immersed in water by holding the handle 31. The vertical rod 32 is pressed down to move it downwards. The vertical rod 32 stretches the tension spring 33 and drives the drive wheel 36 downwards. During the downward movement, the drive wheel 36 engages with the rack 315 and rotates. The rotation is achieved through the one-way transmission of the ratchet 39 and the pawl 37. When the vertical rod 32 returns to its original position and rises, the drive wheel 36 cannot reverse under the one-way locking action of the ratchet 39 and the pawl 37, thus driving the rack 315 to overcome the resistance. The damping strip 316 moves upward due to friction, and the rack 315 moves the bottle stopper 310 upward through the connecting plate 314 and the pull rod 312, so that a negative pressure is formed inside the collection bottle 2. The external water sample is sucked into the collection bottle 2 through the one-way valve 311 at the bottom of the bottle stopper 310. During this process, the rack 315 simultaneously moves the lifting rod 318 upward, and the pointer 320 moves with the lifting rod 318 and indicates the water volume in the corresponding collection bottle 2 on the scale line at the viewing window 317 to read the sample volume.

[0038] When multiple sampling points are required, rotate handle 31. The pin 34 is compressed by the arc surface of the slot, which compresses the ejector spring 35. After the handle 31 drives the vertical rod 32 and the drive wheel 36 to rotate a certain angle, the pin 34 is inserted into the next slot under the action of the ejector spring 35 to achieve positioning. The drive wheel 36 switches to mesh with another rack 315, so that different collection bottles 2 can be sampled independently. After sampling, rotate pull rod 312 to make the slider and the slide groove misaligned. Pull pull rod 312 upward to disconnect the connection, and then remove collection bottle 2 to complete the sampling.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A portable shallow sampling device for hydrogeological information mapping services, comprising a shell (1) and a plurality of sampling bottles (2) arranged in a ring array at the bottom of the shell (1), characterized in that: It also includes a sampling mechanism (3) disposed inside the housing (1); The sampling mechanism (3) includes a handle (31) disposed on the top of the housing (1), a vertical rod (32) disposed on the inner wall of the handle (31), a tension spring (33) sleeved on the top of the vertical rod (32), the top and bottom of the tension spring (33) being fixedly connected to the handle (31) and the vertical rod (32) respectively, a pin (34) disposed on the inner wall of the top of the housing (1), a push-out spring (35) disposed on the side of the pin (34) away from the vertical rod (32), a drive wheel (36) disposed on the bottom of the vertical rod (32), a pawl (37) disposed on the side of the bottom of the vertical rod (32) near the drive wheel (36), and a spring piece (38) disposed in the middle of the pawl (37), the two ends of the spring piece (38) being connected to the pawl (37) and the vertical rod (32) respectively. The device is fixedly connected to a ratchet (39) on the side of the drive wheel (36) near the pawl (37), a bottle stopper (310) on the inner wall of the collection bottle (2), a one-way valve (311) obliquely and symmetrically arranged on the top and bottom of the bottle stopper (310), a pull rod (312) on the top of the bottle stopper (310), a sealing ring (313) on the lower part of the middle of the outer shell (1) near the pull rod (312), a connecting plate (314) on the top of the pull rod (312), a rack (315) on the side of the connecting plate (314) away from the pull rod (312), a damping strip (316) on the inner wall of the outer shell (1) near the top of the rack (315), and an indicator unit on the upper part of the middle of the outer shell (1).

2. The portable shallow sampling device for hydrogeological information mapping services according to claim 1, characterized in that: The handle (31) has several slots arranged in a ring array near the pin (34), and the side of the pin (34) away from the ejector spring (35) abuts against the slot.

3. The portable shallow sampling device for hydrogeological information mapping services according to claim 1, characterized in that: The one-way valve (311) consists of a valve plate and a preload spring, and the two one-way valves (311) on the same stopper (310) are in opposite directions.

4. The portable shallow sampling device for hydrogeological information mapping services according to claim 1, characterized in that: The bottle stopper (310) has a positioning groove at the top center, and sliders are symmetrically arranged on the inner wall of the positioning groove. The bottom end of the pull rod (312) has a sliding groove, and the inner wall of the sliding groove is slidably connected to the slider.

5. The portable shallow sampling device for hydrogeological information mapping services according to claim 1, characterized in that: The connecting plate (314) has a limiting hole on the side near the pull rod (312), and the top of the pull rod (312) is rotatably connected to the limiting hole.

6. The portable shallow sampling device for hydrogeological information mapping services according to claim 1, characterized in that: The indicator unit includes several circular arrays of windows (317) located in the upper middle part of the housing (1), a lifting rod (318) located on the top of the rack (315), a collar (319) located on the bottom of the housing (1) near the windows (317), and a pointer (320) located on the top of the lifting rod (318).

7. The portable shallow sampling device for hydrogeological information mapping services according to claim 6, characterized in that: The top of the collar (319) is provided with a sliding hole, and the inner wall of the sliding hole is slidably connected to the outer wall of the lifting rod (318).

8. The portable shallow sampling device for hydrogeological information mapping services according to claim 6, characterized in that: The window (317) is provided with a glass cover, and scale lines are provided on both sides of the window (317).

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