Soil detection sampling device

Abstract

The invention discloses a soil detection sampling device which comprises a shell with an inner cavity, a switching assembly movably arranged in the inner cavity and a plurality of sampling barrels installed on the switching assembly and provided with sampling ports, and the switching assembly drives the sampling barrels to move to form a switching motion path. A sampling path intersected with the switching motion path is formed on the shell, and a control assembly for controlling the sampling barrel to move along the sampling path and realizing switching between the position of the switching motion path and the position outside the shell is arranged on the shell; a clutch assembly for connecting or separating the control assembly and the sampling barrel is arranged between the control assembly and the sampling barrel, and a linkage mechanism for driving the switching assembly to act through the control assembly is arranged between the control assembly and the switching assembly. The device has the following advantages and effects: the device is convenient to operate, so that the working efficiency is improved, and the manual workload is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, and particularly to a soil detection sampling device. Background Art

[0002] In agricultural land planning production practice and scientific research, it is often necessary to collect soil samples for nutrient status analysis or quality evaluation. The collection of soil samples follows the principles of randomness and representativeness. Multi-point and full-tillage layer sampling are particularly important, which requires sampling as much as possible for mixing. Existing soil sampling mostly uses a sampler. However, the samplers on the current market only support single sampling operations. Specifically, after each sampling, the sampler needs to first remove the soil blocks in the sampler before the next sampling operation can be carried out. This operation method not only has a cumbersome process due to the frequent handling of sampling soil blocks, but also significantly reduces the efficiency of soil sampling. Summary of the Invention

[0003] The purpose of the present invention is to provide a soil detection sampling device, which is convenient to operate, so as to improve work efficiency and reduce manual workload.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions: A soil detection sampling device includes: a housing having an inner cavity, a switching component movably disposed in the inner cavity, and a plurality of sampling cylinders installed on the switching component and having sampling ports. The switching component drives the plurality of sampling cylinders to move to form a switching movement path. A sampling path intersecting the switching movement path is formed on the housing. A control component for controlling the sampling cylinder to move along the sampling path and realizing the switching between the position on the switching movement path and the position outside the housing is provided on the housing. A clutch component for connecting or separating the control component and the sampling cylinder is provided between the control component and the sampling cylinder. A linkage mechanism for driving the switching component to act through the control component is provided between the control component and the switching component.

[0005] By adopting the above technical solution, when collecting soil samples, the sampling cylinder located at the switching movement path is controlled by the control component to leave the switching movement path and move along the sampling path to the outside of the housing, and then the sampling cylinder is inserted into the soil for soil sampling operation. After the soil sampling operation is completed, the sampling cylinder with soil clods is reset to the switching movement path position, and then the control component drives the switching component to act through the linkage mechanism. The switching component in action drives the sampling cylinder to move along the switching movement path and cooperates with the provided clutch component to separate the control component from the sampling cylinder, so that the existing control component does not interfere with the normal movement of the switching component driving the sampling cylinder. The sampling cylinder with soil clods leaves the sampling path along the switching movement path under the action of the switching component, and the next sampling cylinder without soil clods enters the intersection of the sampling path and the switching movement path, and so on to realize multi-point collection of soil without frequent treatment of sampling soil clods. Through the above set structure, the soil sampling operation is made more convenient, thereby improving work efficiency and reducing manual workload.

[0006] Further set as: The switching component includes a switching rotating shaft rotatably arranged in the inner cavity, switching sliders arranged around the center of the switching rotating shaft on the outer peripheral wall of the switching rotating shaft, and a slot formed in each switching slider for the sampling cylinder to be installed. A plurality of the slots are arranged in one-to-one correspondence with a plurality of sampling cylinders, and the inner cavity wall limits the sampling cylinder to be positioned in the slot.

[0007] By adopting the above technical solution, the sampling cylinder located in the inner cavity is limited in each slot, so that the switching rotating shaft can drive the sampling cylinder to move during rotation, so as to realize that each sampling cylinder moves in a cycle along the switching movement path, so that each sampling cylinder can pass through the sampling path.

[0008] Further set as: The housing is provided with a sampling hole communicating the outside with the inner cavity, the axis of the sampling hole is perpendicular to the movement direction of the switching movement path, the control component includes a control rod reciprocally slidably arranged in the housing along the axis of the sampling hole and a push block located in the inner cavity and moving with the control rod, and the push block is located on the orthographic projection path of the sampling hole.

[0009] By adopting the above technical solution, the control rod controls the push block to move along the axis of the sampling hole, so as to push the sampling cylinder towards the sampling hole side and push the sampling cylinder through the sampling hole and move to the outside of the housing.

[0010] Further set as: The clutch component includes a clutch block fixedly arranged on the side of each sampling cylinder opposite to the sampling hole and a clutch slot arranged on the side of the push block facing the clutch block. The clutch slot runs through the push block along the switching movement path of the sampling cylinder, and when the clutch block is located in the clutch slot, the push block can drive the sampling cylinder to reciprocate towards the sampling hole side.

[0011] By adopting the above technical solution, this kind of setting structure enables the clutch block to pass through the clutch groove as the sampling cylinder moves, so that the set control component will not interfere with the movement of the sampling cylinder along with the switching component. When the clutch block moves into the clutch groove, through the cooperation of the two, the control component can control the sampling cylinder to reciprocate along the axis of the sampling hole, so as to achieve the control purpose.

[0012] It is further set that: the linkage mechanism includes a linkage rod slidably arranged in the housing, a linkage block rotating with the switching rotating shaft, a one-way linkage component arranged between the linkage rod and the linkage block, and a first linkage component arranged between the control rod and the linkage rod. A number of linkage blocks are arranged around the center of the switching rotating shaft in a circular distribution, and the rotation path formed by the rotation of the linkage block with the switching rotating shaft intersects with the movement path of the linkage rod.

[0013] By adopting the above technical solution, the control rod drives the linkage rod to move through the first linkage component, and the moving linkage rod cooperates with the linkage block to drive the switching rotating shaft to rotate in one direction under the action of the one-way linkage component, so as to form the linkage between the switching component and the control component, and make the sampling cylinder pass through the sampling path one by one. This kind of setting method has a stable structure and does not require redundant control structures. While the structure is simple, its control is more convenient.

[0014] It is further set that: the one-way linkage component includes a linkage hook hinged to the linkage rod, an elastic member driving the linkage hook to rotate towards the side of the linkage block, and an overstepping inclined surface arranged at one end of each linkage block facing its rotation direction.

[0015] By adopting the above technical solution, the elastic member drives the linkage hook to always press tightly against one side of the linkage block. When the linkage hook passes through the side of the linkage block without an overstepping inclined surface, the linkage hook pushes the linkage block to drive the switching rotating shaft to rotate. When the linkage hook resets, the linkage hook passes through the side of the linkage block with an overstepping inclined surface, and then makes the linkage hook straddle the linkage block, so as to realize the one-way rotation of the switching rotating shaft.

[0016] It is further set that: the first linkage component includes a return spring connecting the linkage rod, a linkage inclined surface arranged on the control rod, and a matching inclined surface arranged on the linkage rod and matching with the linkage inclined surface.

[0017] By adopting the above technical solution, the cooperation between the linkage inclined surface and the matching inclined surface changes the direction of the acting force, so that the control rod can drive the linkage rod to move towards one side, and then the set return spring is used to reset the linkage rod, so as to realize the reciprocating movement of the linkage rod.

[0018] Further set as: The control rod includes an inner rod connecting the push block, an outer rod slidably sleeved on the inner rod, and a linkage spring connecting the inner rod and the outer rod. The linkage inclined plane is arranged on the outer rod. When the side of the push block facing away from the sampling hole abuts against the housing, the movement paths of the clutch groove and the clutch block intersect.

[0019] By adopting the above technical solution, the outer rod cooperates with the inner rod through the linkage spring to drive the push block to achieve synchronous movement. When the push block moves away from the sampling hole and abuts against the housing, the position of the push block is positioned, so as to ensure that the clutch block on each sampling cylinder can accurately enter or pass through the clutch groove, ensuring the feasibility and reliability of the implementation of this setting structure. When the linkage rod needs to be controlled by the linkage inclined plane, pull the outer rod away from the push block forcefully. At this time, the inner rod does not move and the linkage spring is stretched, so as to accurately fix the position of the clutch groove while enabling the control component to form a linkage with the linkage mechanism to achieve the dual control purpose.

[0020] Further set as: The housing includes a main body part and a cover part. The switching rotating shaft is rotatably arranged on the main body part and is detachably rotatable with the cover part. The sampling hole is arranged on the cover part, and the main body part and the cover part are detachably fixed.

[0021] By adopting the above technical solution, when the soil block in the sampling cylinder needs to be taken out, open the cover part to conveniently take out the soil block in the sampling cylinder; and this setting structure can also take out the sampling cylinder from the housing first and then take out the soil block in the sampling cylinder. The operation is convenient and more time-saving and labor-saving.

[0022] Further set as: A positioning component is arranged between the switching rotating shaft and the housing. The positioning component includes a plurality of positioning grooves arranged around the switching rotating shaft, a positioning block slidably arranged on the housing and moving towards one side of the positioning groove, and a pressing spring driving the positioning block to move towards the positioning groove. The plurality of positioning grooves are arranged in one-to-one correspondence with the plurality of sampling cylinders, and when the positioning block is embedded in one of the positioning grooves, one of the sampling cylinders is located on the sampling path.

[0023] By adopting the above technical solution, the pressing spring drives the positioning block to be embedded in the positioning groove to position the position of the sampling cylinder during rotation, ensuring that each sampling cylinder can accurately move to the sampling path to ensure the reliability of the implementation of this design scheme and avoid the misalignment of the sampling cylinder position. And by applying a large force to the switching rotating shaft, the separation of the positioning block and the positioning groove can be achieved.

[0024] In summary, the present invention has the following beneficial effects: The present invention is convenient to operate, thereby improving work efficiency and reducing the manual workload. Description of the Drawings

[0025] Figure 1Schematic structural diagram of the embodiment; Figure 2 Partial exploded view of the embodiment; Figure 3 Cross-sectional view of the embodiment; Figure 4 is Figure 3 Enlarged view of part A in Figure 5 Schematic partial structural diagram of the embodiment; Figure 6 Partial sectional view of the embodiment; Figure 7 Another schematic partial structural diagram of the embodiment.

[0026] In the figure: 1, inner cavity; 2, housing; 21, main body part; 22, cover part; 3, switching component; 31, switching rotating shaft; 32, switching block; 33, slot; 4, sampling cylinder; 5, control component; 51, control rod; 511, inner rod; 512, outer rod; 513, linkage spring; 52, push block; 6, clutch component; 61, clutch block; 62, clutch groove; 7, linkage mechanism; 71, linkage rod; 72, linkage block; 73, one-way linkage component; 731, linkage hook; 732, overstepping inclined plane; 74, first linkage component; 741, return spring; 742, linkage inclined plane; 743, mating inclined plane; 8, sampling hole; 9, positioning component; 91, positioning groove; 92, positioning block; 93, abutting spring. Detailed implementation manners

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Referring to Figures 1 to 7 , a soil detection sampling device includes: a housing 2 having an inner cavity 1, a switching component 3 movably disposed in the inner cavity 1, and a plurality of sampling cylinders 4 mounted on the switching component 3 and having sampling ports. The switching component 3 drives the plurality of sampling cylinders 4 to move to form a switching movement path, a sampling path intersecting the switching movement path is formed on the housing 2, and a control component 5 for controlling the sampling cylinder 4 to move along the sampling path and realizing the switching between the position on the switching movement path and the position outside the housing 2 is provided on the housing 2. A clutch component 6 for connecting or disconnecting the control component 5 and the sampling cylinder 4 is provided between the control component 5 and the sampling cylinder 4, and a linkage mechanism 7 for driving the switching component 3 to act through the control component 5 is provided between the control component 5 and the switching component 3.

[0029] The switching component 3 includes a switching rotating shaft 31 rotatably arranged in the inner cavity 1, switching sliders 32 arranged around the center of the switching rotating shaft 31 on the outer peripheral wall of the switching rotating shaft 31, and slot grooves 33 formed in each switching slider 32 for the sampling cylinder 4 to be installed. A number of slot grooves 33 are arranged in one-to-one correspondence with a number of sampling cylinders 4, and the wall of the inner cavity 1 limits the sampling cylinder 4 to be positioned in the slot groove 33. The switching slider 32 is integrally connected with the switching rotating shaft 31. The housing 2 includes a main body portion 21 and a cover body portion 22 covering the opening of the main body portion 21. The switching rotating shaft 31 is rotatably arranged in the main body portion 21 and is detachably and rotatably matched with the cover body portion 22. When the cover body portion 22 covers the opening of the main body portion 21, the cover body portion 22 is rotatably matched with the lower end of the switching rotating shaft 31; the main body portion 21 and the cover body portion 22 are detachably fixed, that is, a plurality of buckles are hinged on the cover body portion 22 and are buckled on the main body portion 21. The adjacent switching sliders 32 are integrally connected.

[0030] A sampling hole 8 communicating the outside with the inner cavity 1 is formed in the cover body portion 22. The axis of the sampling hole 8 is perpendicular to the movement direction of the switching movement path. The control component 5 includes a control rod 51 slidably arranged in the main body portion 21 along the axis of the sampling hole 8 and a push block 52 located in the inner cavity 1 and moving with the control rod 51. The push block 52 is located on the orthographic projection path of the sampling hole 8.

[0031] The clutch component 6 includes a clutch block 61 integrally arranged on the side surface of each sampling cylinder 4 facing away from the sampling hole 8 and a clutch groove 62 formed on the surface of the push block 52 facing the clutch block 61. The clutch groove 62 runs through the push block 52 along the switching movement path of the sampling cylinder 4, and when the clutch block 61 is located in the clutch groove 62, the push block 52 can drive the sampling cylinder 4 to reciprocate toward the side of the sampling hole 8.

[0032] The linkage mechanism 7 includes a linkage rod 71 slidably arranged in the main body portion 21, a linkage block 72 integrally arranged on the switching rotating shaft 31, a one-way linkage component 73 arranged between the linkage rod 71 and the linkage block 72, and a first linkage component 74 arranged between the control rod 51 and the linkage rod 71. A number of linkage blocks 72 are arranged around the center of the switching rotating shaft 31 in a circumferential distribution, and the rotation path formed by the rotation of the linkage block 72 with the switching rotating shaft 31 intersects with the movement path of the linkage rod 71.

[0033] The one-way linkage component 73 includes a linkage hook 731 hinged to the linkage rod 71 through a rotating shaft, an elastic member for driving the linkage hook 731 to rotate towards the linkage block 72, and an overstepping inclined surface 732 formed at one end of each linkage block 72 facing its rotation direction. The elastic member is a torsion spring sleeved on the rotating shaft and fixedly connected to the linkage rod 7 and the linkage hook 731 at both ends respectively. The first linkage component 74 includes a return spring 741 fixedly connecting the linkage rod 71 and the main body portion 21, a linkage inclined surface 742 formed on the control rod 51, and a mating inclined surface 743 formed on the linkage rod 71 and mating with the linkage inclined surface 742.

[0034] The control rod 51 includes an inner rod 511 integrally connected to the push block 52, an outer rod 512 slidably sleeved on the inner rod 511, and a linkage spring 513 fixedly connecting the inner rod 511 and the outer rod 512. The linkage inclined surface 742 is formed on the outer rod 512. When the side of the push block 52 facing away from the sampling hole 8 abuts against the housing 2, the movement paths of the clutch groove 62 and the clutch block 61 intersect. Both the inner rod 511 and the outer rod 512 are square rods.

[0035] A positioning component 9 is provided between the switching rotating shaft 31 and the main body portion 21. The positioning component 9 includes a plurality of positioning grooves 91 formed around the switching rotating shaft 31, a positioning block 92 slidably disposed in the main body portion 21 and moving towards the positioning grooves 91, and a pressing spring 93 for driving the positioning block 92 to move towards the positioning grooves 91. The pressing spring 93 is embedded in the main body portion 21, and the end of the positioning block 92 facing away from the pressing spring 93 is spherical. The plurality of positioning grooves 91 are provided corresponding to the plurality of sampling cylinders 4 one by one. When the positioning block 92 is inserted into one of the positioning grooves 91, one of the sampling cylinders 4 is located on the sampling path.

[0036] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A soil detection sampling device, characterized in that: include: A shell (2) having an inner cavity (1), a switching component (3) movably arranged in the inner cavity (1), and a plurality of sampling barrels (4) mounted on the switching component (3) and having sampling ports, wherein the switching component (3) drives the plurality of sampling barrels (4) to move to form a switching motion path, a sampling path intersecting with the switching motion path is formed on the shell (2), a control component (5) is provided on the shell (2) to control the sampling barrel (4) to move along the sampling path and realize switching between a position on the switching motion path and a position outside the shell (2), a clutch component (6) is provided between the control component (5) and the sampling barrel (4) to connect or separate the two, and a linkage mechanism (7) is provided between the control component (5) and the switching component (3) to drive the switching component (3) to move via the control component (5).

2. The soil detection sampling device according to claim 1, characterized in that: The switching assembly (3) comprises a switching shaft (31) rotatably arranged in the inner cavity (1), switching blocks (32) arranged around the center of the switching shaft (31) and distributed on the outer peripheral wall of the switching shaft (31), and a switching groove (33) formed in each switching block (32) and for the sampling tube (4) to be embedded, a plurality of the switching grooves (33) and a plurality of the sampling tubes (4) being arranged in a one-to-one correspondence, and the sampling tube (4) is positioned in the switching groove (33) by the wall of the inner cavity (1).

3. The soil detection sampling device according to claim 2, characterized in that: The housing (2) is provided with a sampling hole (8) communicating with the outside and the inner cavity (1); the axis of the sampling hole (8) is perpendicular to the movement direction of the switching movement path; the control component (5) comprises a control rod (51) arranged on the housing (2) for reciprocating sliding along the axis of the sampling hole (8) and a push block (52) located in the inner cavity (1) and moving with the control rod (51); the push block (52) is located on the positive projection path of the sampling hole (8).

4. The soil detection sampling device according to claim 3, characterized in that: The clutch assembly (6) comprises a clutch block (61) fixedly arranged on a side of each sampling barrel (4) opposite to the sampling hole (8) and a clutch groove (62) arranged on a side of the push block (52) facing the clutch block (61); the clutch groove (62) penetrates the push block (52) along the switching movement path of the sampling barrel (4); and when the clutch block (61) is located in the clutch groove (62), the push block (52) can drive the sampling barrel (4) to reciprocate toward the sampling hole (8).

5. The soil detection sampling device according to claim 4, characterized in that: The linkage mechanism (7) comprises a linkage rod (71) slidably arranged on the housing (2), a linkage block (72) rotating with the switching shaft (31), a one-way linkage component (73) arranged between the linkage rod (71) and the linkage block (72), and a first linkage component (74) arranged between the control rod (51) and the linkage rod (71); the linkage block (72) is provided with a plurality of linkage blocks distributed around the center of the switching shaft (31); and a rotation path formed by the linkage block (72) rotating with the switching shaft (31) intersects with a movement path of the linkage rod (71).

6. The soil detection sampling device according to claim 5, characterized in that: The one-way linkage assembly (73) comprises a linkage hook (731) hinged to the linkage rod (71), an elastic member driving the linkage hook (731) to rotate toward one side of the linkage block (72), and an overriding inclined surface (732) arranged at one end of each linkage block (72) facing its rotation direction.

7. The soil detection sampling device according to claim 5, characterized in that: The first linkage component (74) comprises a return spring (741) connected to the linkage rod (71), a linkage inclined surface (742) arranged on the control rod (51), and a matching inclined surface (743) arranged on the linkage rod (71) and matching with the linkage inclined surface (742).

8. The soil detection sampling device according to claim 7, characterized in that: The control rod (51) comprises an inner rod (511) connected to a push block (52), an outer rod (512) slidably mounted on the inner rod (511), and a linkage spring (513) connecting the inner rod (511) and the outer rod (512); the linkage inclined surface (742) is arranged on the outer rod (512); when a side of the push block (52) facing away from the sampling hole (8) abuts against the housing (2), the clutch groove (62) intersects with the movement path of the clutch block (61).

9. The soil detection sampling device according to claim 3, characterized in that: The housing (2) comprises a main body (21) and a cover (22); the switching shaft (31) is rotatably arranged on the main body (21) and is detachably rotatable with the cover (22); the sampling hole (8) is arranged on the cover (22); and the main body (21) and the cover (22) are detachably fixed.

10. The soil detection sampling device according to claim 3, characterized in that: A positioning assembly (9) is provided between the switching shaft (31) and the housing (2), the positioning assembly (9) comprising a plurality of positioning grooves (91) distributed around the switching shaft (31), a positioning block (92) slidably provided on the housing (2) and moving toward one side of the positioning groove (91), and a pressing spring (93) driving the positioning block (92) to move toward the positioning groove (91), the plurality of positioning grooves (91) and the plurality of sampling barrels (4) being provided in a one-to-one correspondence, and when the positioning block (92) is embedded in one of the positioning grooves (91), one of the sampling barrels (4) is located in a sampling path.

Images