A portable soil sampling device for environmental protection detection

Abstract

The utility model relates to soil sampling technical field, concretely relates to a portable soil sampling equipment for environmental protection detection, include: sampling subassembly, it includes sampling shovel pipe, the sampling shovel pipe upper end is provided with the pivot, folding handle subassembly, it can switch between folding storage state and prop open sampling state, including folder and fixed setting on the folder handle, the folder one end is through pivot with sampling shovel pipe swing joint, locking subassembly, it is used for fixing folding handle subassembly in prop open sampling state, through above setting, can switch between folding storage state and prop open sampling state quickly, effectively ensured the stability and reliability of sampling process, and the overall structure is compact after folding, is convenient for carrying and storage, reduces the space occupation when carrying.

Description

Technical Field

[0001] This utility model relates to a portable soil sampling device for environmental protection testing, belonging to the field of soil sampling technology. Background Technology

[0002] As people's living standards improve, they are paying more and more attention to the environmental protection of their living environment. The quality of the environment depends first and foremost on the quality of the soil in their living environment. To study the amount and composition of heavy metal ions in the soil, it is necessary to first sample the soil. Existing soil sampling devices often use a sleeve to knock the soil out when sampling the soil. This method is time-consuming and laborious, and it is difficult to remove the soil from the sleeve.

[0003] Chinese patent CN220418876U discloses an ecological and environmental protection testing soil sampling device, which includes a sampling rod. A sampling tube is fixedly installed at the bottom end of the sampling rod. The bottom end of the sampling tube is provided with a tube groove. A first circular chamber is provided inside the sampling rod. A first circular plate is movably installed inside the first circular chamber. One end of a first connecting plate is fixedly installed at the bottom end of the first circular plate. The other end of the first connecting plate extends movably into the tube groove and is fixedly installed with a drill bit.

[0004] While the aforementioned devices increase the practicality of the sampling rod, they cannot be folded and packed for carrying outdoors. Outdoor sampling often involves long-distance hiking, mountain climbing, and traversing fields, requiring a large amount of space that cannot be accommodated in ordinary outdoor backpacks. Special storage boxes or handheld containers are needed, forcing users to carry the equipment with one or two hands, which can easily lead to arm pain and rapid energy depletion over time, reducing sampling efficiency. Therefore, researching a new type of portable soil sampling device for environmental testing is of great practical significance. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a portable soil sampling device for environmental testing.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A portable soil sampling device for environmental protection testing, comprising:

[0007] A sampling assembly includes a sampling shovel for inserting into a soil layer to take samples, wherein a pin is provided at the upper end of the sampling shovel;

[0008] A folding handle assembly that can switch between a folded storage state and an unfolded sampling state includes a folding component and a handle fixedly mounted on the folding component. One end of the folding component is movably hinged to the sampling shovel tube via the pin. When in the unfolded sampling state, there is a predetermined angle between the folding component and the sampling shovel tube. When in the folded storage state, the folding component is parallel to the sampling shovel tube.

[0009] A locking component for securing the folding handle assembly in the open sampling state.

[0010] Furthermore, the folding component has a U-shaped opening structure with a retainer inside. When in the folded storage state, the sampling shovel tube is located inside the U-shaped opening of the folding component and is engaged in the retainer.

[0011] Furthermore, the sampling shovel tube has a strip-shaped guide opening on its side wall, and a transmission rod is movably installed inside the sampling shovel tube. The transmission rod passes through and extends to the outside of the guide opening. The transmission rod is movably hinged to a transmission arm, and the other end of the transmission arm away from the transmission rod is movably hinged to the folding member. When switching between the folded storage state and the unfolded sampling state, the transmission arm drives the transmission rod to slide within the guide opening.

[0012] The locking component is disposed on the sampling shovel tube and is used to fix the transmission rod at a preset position.

[0013] Furthermore, the sampling shovel tube has two symmetrically arranged strip-shaped guide openings on its side wall. The two ends of the transmission rod pass through and extend to the outside of the corresponding guide openings, and the two ends of the transmission rod extending to the outside of the guide openings are respectively movably hinged to a transmission arm.

[0014] Furthermore, a spiral blade is provided on the outer periphery of the lower end of the sampling shovel tube.

[0015] Furthermore, when in the open sampling state, the transmission rod abuts against the top of the guide port, and a pusher rod is slidably arranged inside the sampling shovel tube, the pusher rod being connected to the transmission rod.

[0016] Furthermore, the locking assembly includes a fixed seat disposed on the sampling shovel tube, a pressing key is movably disposed on the fixed seat, and a force-applying column is disposed at the end of the pressing key;

[0017] The locking assembly also includes a connecting seat and a limiting pin. The limiting pin is located on the side of the connecting seat near the sampling shovel tube. The side wall of the sampling shovel tube has a through hole corresponding to the position of the limiting pin. The push rod has a limiting hole corresponding to the position of the limiting pin. The side wall of the connecting seat has a force-receiving port. The force-applying column abuts against the inside of the force-receiving port. By operating the pressing key, the limiting pin can be moved into or out of the limiting hole.

[0018] Furthermore, the fixed base is also provided with a support frame, a guide cylinder is fixedly connected to the support frame, a guide post is movably inserted inside the guide cylinder, a spring is sleeved on the outside of the guide post, and the guide post is located on the side of the connecting base away from the sampling shovel tube.

[0019] Furthermore, when in the expanded sampling state, the angle between the folding member and the sampling shovel is 90 degrees, and the angle between the transmission arm and the folding member is 20°-35°.

[0020] The beneficial effects of this utility model are as follows: Through the above settings, it is possible to quickly switch between the folded storage state and the unfolded sampling state. In the unfolded sampling state, a stable L-shaped mechanical support structure is formed between the sampling shovel tube and the folding component. When the user holds the handle and applies a downward insertion force to the sampling shovel tube, this structure can make the sampling shovel tube produce a slight tilt angle, which is conducive to the sampling shovel tube overcoming soil resistance and inserting into the soil layer. At the same time, through the cooperation with the locking component, the folding component and the sampling shovel tube are firmly locked, so that the folding handle component is transformed from a movable connecting part into a rigid lever arm, which can avoid the problem of the folding component accidentally folding back under external force, effectively ensuring the stability and reliability of the sampling process. Furthermore, through the above settings, when the sampling is completed, the locking component can be used to unlock and quickly switch to the folded storage state. After folding, the overall structure is compact, easy to carry and store, and can adapt to the complex mobile sampling environment in the mountains and fields, reducing the space occupied when carrying it. It solves the problems of inconvenience in packing into ordinary outdoor backpacks and easy bumping and tangling when carrying. Attached Figure Description

[0021] Figure 1 This is a partial three-dimensional structural diagram of the sampling device provided in Embodiment 1 of this utility model when it is in the open sampling state.

[0022] Figure 2 This is a three-dimensional structural diagram of the sampling device provided in Embodiment 1 of this utility model in its folded and stored state.

[0023] Figure 3 This is a partial three-dimensional structural diagram of the sampling shovel provided in Embodiment 1 of this utility model;

[0024] Figure 4This is a three-dimensional structural diagram of the folding component provided in Embodiment 1 of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the locking component provided in Embodiment 1 of this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the locking assembly provided in Embodiment 1 of this utility model from another perspective;

[0027] Figure 7 This is a cross-sectional view of the locking component provided in Embodiment 1 of this utility model.

[0028] Reference numerals: 100, Sampling assembly; 11, Sampling shovel tube; 12, Guide port; 13, Push rod; 131, Limiting hole; 14, Transmission rod; 15, Spiral blade; 200, Folding part; 21, Card seat; 22, Transmission arm; 23, Handle; 24, Pin; 300, Locking assembly; 30, Fixing seat; 31, Press key; 311, Force application column; 32, Support frame; 33, Guide cylinder; 34, Guide column; 35, Spring; 36, Connecting seat; 361, Limiting pin; 362, Force receiving port. Detailed Implementation

[0029] The specific embodiments of this utility model are described in detail below. This utility model can be implemented in many ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used is for describing particular embodiments only and is not intended to limit the scope of this invention.

[0031] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Example 1

[0034] like Figure 1-2 As shown, this utility model provides a portable soil sampling device for environmental protection testing, including: a sampling component 100, which includes a sampling shovel tube 11 for inserting into the soil layer for sampling, and a pin 24 is provided at the upper end of the sampling shovel tube 11; a folding handle assembly, which can switch between a folded storage state and an open sampling state, including a folding member 200 and a handle 23 fixedly disposed on the folding member 200, one end of the folding member 200 being movably hinged to the sampling shovel tube 11 through the pin 24; when in the open sampling state, the folding member 200 and the sampling shovel tube 11 have a predetermined angle; preferably, when in the open sampling state, the folding member 200 and the sampling shovel tube 11 are unfolded into an L-shape, and the angle between them is 90°; when in the folded storage state, the folding member 200 is parallel to the sampling shovel tube 11; and a locking component 300, which is used to fix the folding handle 23 assembly in the open sampling state.

[0035] Through the above settings, it is possible to quickly switch between the folded storage state and the unfolded sampling state. In the unfolded sampling state, a stable L-shaped mechanical support structure is formed between the sampling shovel tube 11 and the folding component 200. When the user holds the handle 23 and applies a downward insertion force to the sampling shovel tube 11, this structure allows the sampling shovel tube 11 to produce a slight tilt angle, which is beneficial for the sampling shovel tube 11 to overcome soil resistance and insert into the soil layer. At the same time, through cooperation with the locking component 300, the folding component 200 and the sampling shovel tube 11 are firmly locked, making the folding handle... The 23rd component transforms from a movable connecting part into a rigid lever arm, which can prevent the folding part 200 from accidentally folding back under external force, effectively ensuring the stability and reliability of the sampling process. Furthermore, through the above settings, when sampling is completed, the locking component 300 can be unlocked, allowing for quick folding and switching to the folded storage state. After folding, the overall structure is compact, making it easy to carry and store. It can adapt to the complex mobile sampling environment in the mountains and fields, reducing the space occupied when carrying it and solving the previous problems of being inconvenient to put into ordinary outdoor backpacks and being easily bumped and tangled when carried.

[0036] Specifically, such as Figure 1 , 2As shown in Figure 4, the folding component 200 has a U-shaped opening structure with a retainer 21 inside. When in the folded storage state, the sampling shovel tube 11 is located inside the U-shaped opening of the folding component 200 and is engaged in the retainer 21. The retainer 21 has a C-shaped opening structure with arc-shaped ends, which matches the shape of the cylindrical sampling shovel tube 11. This arrangement allows for a semi-enclosed fixation of the sampling shovel tube 11 in the radial direction, making the folded sampling device structure more compact and reducing its space occupation. It can be used to ensure that even if there is slight vibration during handling or transportation, the sampling shovel tube 11 will not loosen or fall off from the holder 21, effectively ensuring the stability of storage. It can also avoid hard friction between the sampling shovel tube 11 and the holder 21, indirectly extending the service life of the sampling shovel tube 11 and the folding part 200. Furthermore, the curved ends can prevent scratches or collisions between the sampling shovel tube 11 and the folding part 200 during folding and storage, effectively protecting the structural integrity of the sampling shovel tube 11 and preventing scratches and deformation of the tube body.

[0037] Specifically, such as Figure 1-3 As shown, the sampling shovel tube 11 has a strip-shaped guide opening 12 on its side wall. A transmission rod 14 is movably disposed inside the sampling shovel tube 11. The transmission rod 14 passes through and extends to the outside of the guide opening 12. A transmission arm 22 is movably hinged to the transmission rod 14. The other end of the transmission arm 22 away from the transmission rod 14 is movably hinged to the folding member 200. When switching between the folded storage state and the unfolded sampling state, the transmission arm 22 drives the transmission rod 14 to slide within the guide opening 12. The locking assembly 300 is disposed on the sampling shovel tube 11 and is used to fix the transmission rod 14 at a preset position. It should be noted that the transmission arm 22 is hinged to the folding member 200 by a pin 24. The guide opening 12 should have a certain length to ensure that the transmission arm 22 can extend to a state that is straight with the folding member 200 when in the folded storage state. With the above settings, when the sampling state is open, a stable triangular support structure is formed between the transmission arm 22, the folding member 200, and the sampling shovel tube 11, which greatly improves the structural strength, can resist the downward pressure load and torsional load when cutting into the soil, effectively extends the service life, and is more ergonomic and easier for the user to apply force. Preferably, the other end of the transmission arm 22 away from the transmission rod 14 is movably hinged between the middle part of the folding member 200 and the end of the folding member 200 away from the sampling shovel tube 11.

[0038] Specifically, such as Figure 1As shown, in order to further improve the structural strength and reduce the influence of torsional load on the hinge position of the sampling shovel tube 11 and the folding part 200, two strip-shaped guide ports 12 are symmetrically opened on the side wall of the sampling shovel tube 11. The two ends of the transmission rod 14 pass through and extend to the outside of the corresponding guide port 12, and the two ends of the transmission rod 14 extending to the outside of the guide port 12 are respectively movably hinged to a transmission arm 22.

[0039] Specifically, such as Figure 3 As shown, a spiral blade 15 is provided on the outer periphery of the lower end of the sampling shovel tube 11. The spiral blade 15 and the sampling shovel tube 11 are an integral structure formed by welding. When sampling in locations with hard soil, the sampling device can be rotated while applying downward pressure, making it easier to drill into the soil for sampling.

[0040] Specifically, such as Figure 1 As shown, when in the open sampling state, the transmission rod 14 abuts against the top of the guide port 12, and a pusher rod 13 is slidably disposed inside the sampling shovel tube 11, which is connected to the transmission rod 14. It should be noted that the pusher rod 13 is clearance-fitted with the sampling shovel tube 11, and the pusher rod 13 is screwed to the bottom of the transmission rod 14. In some other embodiments, when in the folded storage state, the end of the pusher rod 13 away from the transmission rod 14 is flush with the bottom end of the sampling shovel tube 11. With this arrangement, after sampling, during the folding and storage process, the pusher rod 13, driven by the transmission arm 22, moves from top to bottom inside the sampling shovel tube 11, automatically pushing the collected soil sample out of the sampling shovel tube 11. This achieves simultaneous completion of folding and storage and sample cleaning, eliminating tedious manual cleaning steps, effectively improving sampling efficiency, and eliminating the need for users to carry additional auxiliary cleaning tools, further saving space and reducing the user's burden.

[0041] Specifically, such as Figure 5-7As shown, the locking assembly 300 includes a fixing seat 30 disposed on the sampling shovel tube 11. The fixing seat 30 is welded and fixed to the sampling shovel tube 11. A pressing key 31 is movably disposed on the fixing seat 30. The pressing key 31 is hinged to the fixing seat 30 via a pin 24. A force-applying column 311 is disposed at the end of the pressing key 31. The locking assembly 300 also includes a connecting seat 36 and a limiting pin 361. The limiting pin 361 is disposed on the side of the connecting seat 36 near the sampling shovel tube 11. The limiting pin 361 and the connecting seat 36 are fixed by welding. The side wall of the sampling shovel tube 11 corresponds to the limiting pin 361. A through hole is provided at the position, and a limiting hole 131 is provided at the position of the limiting pin 361 to cooperate with it. A force-receiving port 362 is provided on the side wall of the connecting seat 36, and the force-applying column 311 abuts against the inside of the force-receiving port 362. By operating the pressing key 31, the connecting seat 36 is driven, which in turn drives the limiting pin 361 to move, so that the limiting pin 361 can enter or disengage from the limiting hole 131. This structure is compact and can achieve reliable locking and unlocking. After sampling is completed, only pressing the pressing key 31 is needed to disengage the limiting pin 361 from the limiting hole 131. The unlocking operation is simple and convenient and does not require cumbersome disassembly.

[0042] Specifically, such as Figure 5-7 As shown, a support frame 32 is also provided on the fixed base 30. The support frame 32 is welded and fixed to the fixed base 30. A guide cylinder 33 is fixedly connected to the support frame 32. The support frame 32 is fixed to the guide cylinder 33 by welding. A guide post 34 is movably inserted inside the guide cylinder 33. A spring 35 is sleeved on the outside of the guide post 34. One end of the spring 35 abuts against the guide cylinder 33, and the other end abuts against the connecting base 36. The guide post 34 is located on the side of the connecting base 36 away from the sampling shovel tube 11. When the folding operation is performed, the pressing button 31 drives the connecting base 36 to move upward. At this time, the guide post 34 moves upward synchronously. The guide cylinder 33 limits and guides the guide post 34. At the same time, the spring 35 is compressed. After folding, the pressing button 31 is released, and the spring 35 provides a reset force, so that the limiting pin 361 returns to the initial position. Through this setting, the consistency of the locking component 300's operation can be ensured, further ensuring the stability of subsequent locking and unlocking.

[0043] Specifically, when in the open sampling state, the angle between the folding component 200 and the sampling shovel tube 11 is 90 degrees, and the angle between the transmission arm 22 and the folding component 200 is 20°-35°. This setting balances the operational smoothness, structural stability, and portability during the sampling and switching processes, ensuring both the rigidity and stability of the overall structure and the smoothness of the folding action, achieving a smooth transition from the open sampling state to the folded storage state. If the angle is less than 20°, the transmission arm 22 is too close to the folding component 200, the lever arm is too short, and a great deal of force is required to initiate the folding and pushing action, and jamming is very likely to occur, resulting in the inability to complete the folding and pushing action smoothly. If the angle is greater than 35°, although jamming can be avoided, the size of the transmission arm 22 becomes larger, and the folding component 200 needs to be lengthened to accommodate the transmission arm 22, which increases manufacturing costs and reduces portability.

[0044] Working process: During actual sampling, the sampling shovel tube 11 and the folding component 200 are unfolded into an L-shape. At the same time, the sampling shovel tube 11 and the folding component 200 are locked together by the locking component 300. At this time, the handle 23 can be held and the sampling shovel tube 11 is pressed to make the sampling shovel tube 11 penetrate into the soft soil and complete the soil sampling work in the area. When the sampling is completed, the pressing button 31 is pressed down, and the connecting seat 36 drives the limiting pin 361 to move upward. The limiting pin 361 disengages from the inside of the limiting hole 131. At this time, the sampling shovel tube 11 and the folding component 200 are folded. Under the action of the two sets of transmission arms 22, the pushing rod 13 moves from top to bottom inside the sampling shovel tube 11 to push out the soil inside the sampling shovel tube 11. Then the sampling shovel tube 11 is locked in the card seat 21 inside the folding component 200. At this time, it is in the folded storage state.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are exhaustively listed. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] For those skilled in the art, various modifications and improvements can be made without departing from the concept of this utility model, and these modifications and improvements are all within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims.

Claims

1. A portable soil sampling device for environmental monitoring, characterized in that, include: A sampling assembly includes a sampling shovel for inserting into a soil layer to take samples, wherein a pin is provided at the upper end of the sampling shovel; A folding handle assembly that can switch between a folded storage state and an unfolded sampling state includes a folding component and a handle fixedly mounted on the folding component. One end of the folding component is movably hinged to the sampling shovel tube via the pin. When in the unfolded sampling state, there is a predetermined angle between the folding component and the sampling shovel tube. When in the folded storage state, the folding component is parallel to the sampling shovel tube. A locking component for securing the folding handle assembly in the open sampling state.

2. The portable soil sampling device for environmental protection testing according to claim 1, characterized in that, The folding component has a U-shaped opening structure with a retainer inside. When in the folded storage state, the sampling shovel tube is located inside the U-shaped opening of the folding component and is engaged in the retainer.

3. A portable soil sampling device for environmental protection testing according to claim 1 or 2, characterized in that, The sampling shovel tube has a strip-shaped guide opening on its side wall. A transmission rod is movably installed inside the sampling shovel tube. The transmission rod passes through and extends to the outside of the guide opening. A transmission arm is movably hinged to the transmission rod. The other end of the transmission arm away from the transmission rod is movably hinged to the folding member. When switching between the folded storage state and the unfolded sampling state, the transmission arm drives the transmission rod to slide within the guide opening. The locking component is disposed on the sampling shovel tube and is used to fix the transmission rod at a preset position.

4. The portable soil sampling device for environmental protection testing according to claim 3, characterized in that, The sampling shovel tube has two symmetrically arranged strip-shaped guide openings on its side wall. The two ends of the transmission rod pass through and extend to the outside of the corresponding guide openings. The two ends of the transmission rod extending to the outside of the guide openings are respectively movably hinged to a transmission arm.

5. The portable soil sampling device for environmental protection testing according to claim 4, characterized in that, A spiral blade is provided on the outer periphery of the lower end of the sampling shovel.

6. A portable soil sampling device for environmental protection testing according to claim 5, characterized in that, When in the open sampling state, the transmission rod abuts against the top of the guide port, and a pusher rod is slidably arranged inside the sampling shovel tube, which is connected to the transmission rod.

7. A portable soil sampling device for environmental protection testing according to claim 6, characterized in that, The locking assembly includes a fixed seat disposed on the sampling shovel tube, a pressing key movably disposed on the fixed seat, and a force-applying column disposed at the end of the pressing key; The locking assembly also includes a connecting seat and a limiting pin. The limiting pin is located on the side of the connecting seat near the sampling shovel tube. The side wall of the sampling shovel tube has a through hole corresponding to the position of the limiting pin. The push rod has a limiting hole corresponding to the position of the limiting pin. The side wall of the connecting seat has a force-receiving port. The force-applying column abuts against the inside of the force-receiving port. By operating the pressing key, the limiting pin can be moved into or out of the limiting hole.

8. A portable soil sampling device for environmental protection testing according to claim 7, characterized in that, The fixed base is also provided with a support frame, and a guide cylinder is fixedly connected to the support frame. A guide post is movably inserted inside the guide cylinder. A spring is sleeved on the outside of the guide post, and the guide post is located on the side of the connecting base away from the sampling shovel tube.

9. A portable soil sampling device for environmental protection testing according to claim 8, characterized in that, When in the open sampling state, the angle between the folding component and the sampling shovel is 90 degrees, and the angle between the transmission arm and the folding component is 20°-35°.

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