A soil screening sampling device and soil detector thereof

Abstract

This invention discloses a soil screening and sampling device and its soil detector, relating to the field of soil testing technology. It includes a sieve and a vibration drive component, as well as a flipping mechanism. The flipping mechanism includes a moving component connected to the sieve and a guide component. The guide component is fixed in place. During the process of the moving component moving circumferentially based on the guide component and engaging with it, the moving component drives the sieve connected to it to rotate. When at least two sieves are provided, an electromagnetic connection is provided between the moving component and its corresponding sieve. This invention enables the extraction of soil from the sieve in a non-offline state, eliminating the need for manual disassembly and assembly. Therefore, it also makes the combined research and development of screening and sampling devices and soil detectors possible.

Description

Technical Field

[0001] This invention relates to the field of soil testing technology, specifically to a soil screening and sampling device and its soil detector. Background Technology

[0002] Soil screening and sampling refers to the process of drying and grinding collected soil samples, then screening them step by step through sieves of different aperture sizes to retain soil particles according to particle size, and quantitatively sampling the soil on each sieve. Soil testing items that require this process include component analysis and bulk density testing.

[0003] Soil sieving requires a sieving device for vibrating the sieves, and the sieves are stacked together. Therefore: (1) Since the sieves are stacked layer by layer, after the screening is completed, the entire sieve set needs to be removed from the vibrating sieve machine. This disassembly and assembly process can only rely on manual intervention. (2) If automated sieve removal is required, the positional interference between sieves must be taken into account; (3) Due to the limitations of automated soil sampling by sieves, the research and development of highly integrated composite sieve sampling devices and soil detectors has been hampered.

[0004] To address the aforementioned technical problems, we propose a soil screening and sampling device and its soil detector. Summary of the Invention

[0005] [Technical problems solved] To address the shortcomings of existing technologies, this invention provides a soil screening and sampling device and its soil detector, which has advantages such as non-off-site soil sampling, single-layer soil sampling, and automated separation in axial docking state, and can effectively solve the problems in the background technology.

[0006] [Technical Solution] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a soil screening and sampling device and its soil detector, including a sieve and a vibration drive component, and a flipping mechanism. The flipping mechanism includes a moving component connected to the sieve and a guide component. The guide component is fixed in place. When the moving component and the guide component are docked and the moving component moves circumferentially based on the guide component, the moving component drives the sieve connected to it to rotate. Under the premise that at least two sieves are provided, an electromagnetic connection component is provided between the moving component and the corresponding sieve.

[0007] Preferably, the vibration drive component is an optional arrangement that can be made by those skilled in the art with reference to existing technology, for example, such as... Figure 1The structure shown has a base for placing the screen on a frame. The frame is equipped with springs to support the base. The base has a structure such as an eccentric wheel. The eccentric wheel is driven by a motor to rotate, thereby causing the screen to vibrate through the base.

[0008] Preferably, fixing the guide component means that the guide component is fixed externally, for example, as... Figure 2 In the structure shown, a rod-shaped object can be fixedly connected to the base used to place the sieve, and the guide is fixedly connected to the rod-shaped object.

[0009] Preferably, the electromagnetic connector is intended to change the connection state between the moving part and its corresponding moving part, specifically including a fixed connection state and a disconnected connection state.

[0010] Preferably, the guide includes a bevel gear, and the moving member includes a bevel gear that can mesh with the bevel gear serving as the guide.

[0011] Preferably, in this embodiment, when the guide and the moving part are bevel gears, the bevel gear, which is the moving part, moves circumferentially based on the bevel gear, which is the guide. During the circumferential movement of the bevel gear, the bevel gear rotates, thereby achieving rotation control of the screen corresponding to the moving part.

[0012] Preferably, the guide member includes a sleeve, and a guide groove is formed on the circumferential surface of the sleeve. The moving member includes two pins that fit into the structure of the guide groove, and the two pins are distributed on both sides of the axis of the rotatable part on the screen. The guide groove has at least two continuous and symmetrical slopes relative to the axial direction of the sleeve. One slope is used to guide the moving member to move from bottom to top relative to the axial direction of the sleeve, and the other slope is used to guide the moving member to move from top to bottom relative to the axial direction of the sleeve. A stop part is provided at the connection of the two slopes.

[0013] As a preferred option, in the setting such Figure 2 Under the condition shown, the sleeve is fixedly connected to the rod.

[0014] Preferably, multiple guide grooves can be provided. When the number of guide grooves is even, the movement control of the screen can be based on the circumferential movement of the sleeve. One guide groove is used to rotate 180° and another guide groove is used to rotate another 180° to reset the screen. When only a single guide groove is provided, the reset movement control of the screen requires reciprocating movement on the guide groove.

[0015] Preferably, the electromagnetic connector includes an electromagnet and two plug-in parts. The two plug-in parts are magnetically attracted by the electromagnet. One of the two plug-in parts is fixedly connected to the moving part, and the other is fixedly connected to the screen.

[0016] Preferably, the two connectors can be magnetically attracted by an electromagnet, meaning that the electromagnet is installed on one connector and the other connector has a material structure, such as an iron sheet, that can be attracted by the electromagnet.

[0017] Preferably, the two connectors are configured to slide relative to each other only in the circumferential direction of the sleeve.

[0018] Preferably, the two connectors are configured to slide relative to each other only in the circumferential direction of the sleeve, meaning that they are configured as follows: Figure 2 The mortise and tenon structure shown ensures the firmness of the connection between the two connectors when they are in the connected state.

[0019] Preferably, when at least two sieves are provided, a connecting frame is connected to the moving parts corresponding to the at least two sieves respectively. The connecting frame is used to drive at least two sets of moving parts to move circumferentially based on the sleeve.

[0020] Preferably, a rotation drive component is provided on the connecting frame. The rotation drive component can be any type of rotation drive component known and understood by those skilled in the art, such as a motor or a motor + reducer, that can drive the connecting frame to move circumferentially based on the sleeve.

[0021] Preferably, when at least two sieves are provided, a structure for blocking the seam is provided at the connection between the sieves. The screening and sampling device also includes a separation mechanism for driving at least two sieves to separate axially. At least two sets of guide members and corresponding moving members are set at different axial heights based on the axial direction of the sleeve, and the moving members are slidably connected to the connecting frame based on the axial direction of the sleeve.

[0022] Preferably, the structure used to block the joint seam means that after the screens are joined, the joint seam is not connected to the outside or directly exposed to the external environment. For example, an flared opening is provided at the upper end of the lower screen, which is used to join and cover the lower end of the upper screen, or a constricted opening such as a flange is provided at the lower end of the upper screen, which is used to join to the upper end of the lower screen. This is an optional arrangement made by those skilled in the art for actual implementation, and will not be described in detail in this embodiment, nor is it intended to further limit the technical features of the present invention.

[0023] Preferably, the separation mechanism can be a circumferential moving drive such as an electric slide table that can drive the sieves to separate. This is an optional arrangement made by those skilled in the art for actual implementation, and will not be described in detail in this embodiment, nor is it intended to further limit the technical features of the present invention.

[0024] Preferably, the axially slidable connection of the moving part to the connecting frame based on the sleeve means that the connecting frame may have a sliding groove, such as... Figure 4 In the structural state shown, when the moving part is at the lowest position of the slide, the moving part and the corresponding guide part are not at the same axial height. The number of slides on the connecting frame is opened according to the number of moving parts, and the slides attached to each moving part are independent and do not interfere with each other.

[0025] Preferably, the separation mechanism includes multiple connecting rods and screws, with the connecting rods rotatably connected end to end. In the connecting rod group, the end of the connecting rod located at one end of the connecting rod group that is not connected to a connecting rod is restricted to be immovable. A slider corresponding to the number of sieves is provided at the rotatably connected part of the multiple connecting rods. The slider is used to support the sieve. The slider attached to the end of the connecting rod located at the other end of the connecting rod group that is not connected to a connecting rod is threadedly connected to the screw.

[0026] Preferably, the non-connected end of the connecting rod at one end of the connecting rod assembly is restricted to be immovable, meaning that the non-connected end of the connecting rod can only rotate. Provided that the screening and sampling device is equipped with a base for placing the sieve, the connecting rod can be rotatably connected to the base.

[0027] Preferably, the slider on the connecting rod is rotatably connected to the corresponding connecting rod.

[0028] Preferably, the screw can be an external rotation drive, which controls the rotation of the screw.

[0029] Preferably, a clamp is provided on the screen, and a base rod is engaged with the clamp. The base rod is fixed in place and is used to limit the screen when it is not moving.

[0030] Preferably, limiting the screen in a non-moving state means preventing the screen from moving unnecessarily due to vibration during operation, which could cause unnecessary wear to the structural components.

[0031] Preferably, given the presence of a base for placing the sieve, the base rod can be fixedly connected to the base, such as... Figure 7 The structural configuration shown, with the base rod in place, can be configured to maximize the overall integration of the device as follows: Figure 5 , 7 The structure is arranged as shown, for example, the screw is located inside the base rod, and the slider is also located inside the base rod. The base rod plays the role of limiting and guiding the slider. In this state, in order to enable the slider to support the screen, a support part is extended from the slider, and the screen is supported by the support part.

[0032] Preferably, a second support portion is also provided on the first support portion, the second support portion being rotatably connected to the first support portion, and the second support portion being as follows: Figure 4 The rod-shaped structure shown has a force-bearing part on the screen. The second support part cooperates with the force-bearing part to support the screen when it is in a state of being reset but not fully reset, or disengaged but not fully disengaged. Figure 8 The structure shown can even be configured with a separation mechanism. During the rotation and reset of the sieve, the position of the structure on the separation mechanism that applies force to the sieve can be changed to achieve better support of the sieve.

[0033] Preferably, the clamp is configured as follows: Figure 7 As shown in the semi-enclosed clamping structure, if the screen needs to be reset after it has been moved and flipped, it is necessary to move the screen in the opposite direction of its original movement, rather than moving it in a single direction around the circumference of the sleeve.

[0034] Preferably, to further ensure the stability of the screen in a non-moving state, a limiting component can be provided on the screen, and an external connector can be provided to cooperate with the limiting component for limiting the screen to external positions, such as... Figure 6 , 7 In the structural configuration shown, the limiting component can be fixed to the clamp to avoid interfering with the operation of the separation mechanism. If a chassis for placing the screen is provided, the connector can be fixedly connected to the chassis.

[0035] The connector is a pin, and the limiting member is a socket that fits into the pin structure. The pin and the socket can slide relative to each other in the vertical direction. This arrangement corresponds to the operating mechanism in which the screen can move in the axial direction. When the separation mechanism moves the screen in the axial direction until the limiting member disengages from the connector, the screen can be moved.

[0036] [Beneficial Effects] Compared with the prior art, the present invention provides a soil screening and sampling device and its soil detector, which has the following beneficial effects: This soil screening and sampling device and its soil detector, through a set flipping mechanism, guides the moving parts on the sieve as they move circumferentially based on the guide members, thereby causing the sieve to flip. In the process of moving the sieve, and under the premise of setting at least two sieves, the connection state between the sieve and the moving parts is controlled by the electromagnetic connection between the sieve and the corresponding moving parts, so that the movement and flipping of one of the multiple sieves can be selected. This enables the soil in the sieve to be taken out in a non-offline state, eliminating the need for manual disassembly and assembly operations. Therefore, it also makes it possible to carry out the combined research and development of screening and sampling devices and soil detectors. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of a soil screening and sampling device according to the present invention.

[0038] Figure 2 This is a schematic diagram of the flipping mechanism in a soil screening and sampling device of the present invention.

[0039] Figure 3 This is a perspective view of the flipping mechanism in a soil screening and sampling device of the present invention.

[0040] Figure 4 This is a schematic diagram of the preferred embodiment of the flipping mechanism in a soil screening and sampling device of the present invention.

[0041] Figure 5 This is a schematic diagram of the separation mechanism in a soil screening and sampling device according to the present invention.

[0042] Figure 6 This is a schematic diagram of the sieve in a preferred embodiment of a soil screening and sampling device of the present invention.

[0043] Figure 7 This is a schematic diagram showing the connection between the sieve and the separation mechanism in a soil screening and sampling device of the present invention, where the sieve is in a limited position.

[0044] Figure 8 This is a front view of a soil screening and sampling device according to the present invention.

[0045] In the picture: 1. Screen; 2. Vibration drive component; 3. Tilting mechanism; 4. Separation mechanism; 11. Load-bearing part; 12. Clamp; 13. Limiting component; 131. Connector; 31. Guide component; 32. Moving component; 33. Sleeve; 311. Stop section; 321. Connecting frame; 322. Electromagnetic connector; 323. Rotation drive component; 3211. Slide groove; 41. Connecting rod; 42. Slider; 43. Screw; 44. Base rod; 421. Support part one; 422. Support part two. Detailed Implementation

[0046] To make the technical means, creative features, achieved objectives, and functional effects of this invention readily understandable, the invention will be further described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0047] In the embodiments, the arrangement method mainly refers to the spatial arrangement, connection relationship and combination form of various components, parts and modules in the mechanism, device, equipment and system, while the operation method mainly refers to the working principle and movement form of the mechanism, device, equipment and system and its attached components, parts and modules to achieve their functions and purposes.

[0048] Example 1 To address the shortcomings of existing technologies: Arrangement method: like Figures 1-3 As shown, the present invention provides a soil screening and sampling device, including a sieve 1 and a vibration drive 2, and also includes a flipping mechanism 3. The flipping mechanism 3 includes a moving part 32 connected to the sieve 1 and a guide part 31. The guide part 31 is fixed. When the moving part 32 and the guide part 31 are docked and the moving part 32 moves circumferentially based on the guide part 31, the moving part 32 is used to drive the sieve 1 connected thereto to rotate. Under the premise that at least two sieves 1 are provided, an electromagnetic connector 322 is provided between the moving part 32 and the corresponding sieve 1.

[0049] The vibration drive component 2 is an optional arrangement made by those skilled in the art with reference to existing technology, for example, such as... Figure 1 The structure shown has a base for placing the screen 1 on a frame. The frame is equipped with springs to support the base. The base is equipped with a structure such as an eccentric wheel. The eccentric wheel is driven by a motor to rotate, thereby driving the screen 1 to vibrate through the base. The guide member 31 being fixed in place means that the guide member 31 is fixed to the outside, for example, as... Figure 2 In the structural configuration shown, a rod-shaped object can be fixedly connected to the base used to place the sieve 1, and the guide 31 is fixedly connected to the rod-shaped object; The electromagnetic connector 322 is intended to change the connection state between the movable member 32 and its corresponding movable member 32, specifically including a fixed connection state and a disconnected connection state.

[0050] Specifically, such as Figure 2 , 3As shown, a flipping mechanism 3 for a soil screening and sampling device includes a guide member 31 comprising a sleeve 33, on which a guide groove is formed on the circumferential surface. The moving member 32 includes two pins that fit into the structure of the guide groove, and the two pins are distributed on both sides of the axis of the rotatable part on the screen 1. The guide groove has at least two continuous and symmetrical slopes relative to the axial direction of the sleeve 33. One slope is used to guide the moving member 32 to move from bottom to top relative to the axial direction of the sleeve 33, and the other slope is used to guide the moving member 32 to move from top to bottom relative to the axial direction of the sleeve 33. A stop part 311 is provided at the connection of the two slopes.

[0051] Among them, in the setting such as Figure 2 Under the condition of the rod-shaped object shown, the sleeve 33 is fixedly connected to the rod-shaped object; Multiple guide slots can be provided. When there are an even number of guide slots, the movement control operation of screen 1 can be based on the circumferential movement of sleeve 33. One guide slot is used to rotate 180° and another guide slot is used to rotate another 180° to reset screen 1. When there is only a single guide slot, the reset movement control of screen 1 requires reciprocating movement on the guide slot.

[0052] Operation method: This invention is a soil screening and sampling device. In the preliminary process of soil testing, in this embodiment, the soil testing items mainly refer to the soil bulk density testing. Therefore, the soil needs to be dried first. After drying, the soil is put into the sieves 1 of each level for screening. During this process, the sieves 1 need to be vibrated by the vibration drive 2 to achieve the screening effect. After the soil is sieved, the sieve 1 is rotated in a non-off-machine state by the flipping mechanism 3. This is done by moving the sieve 1 to a position where it is not stacked. During the movement of the sieve 1, the moving part 32 on the sieve 1 is guided by the guide part 31, which in turn drives the guide part 31 to rotate. During this period, such as Figure 2 , 3 In the structural configuration shown, the movable member 32 is a pin-shaped structure with a circumferential surface. The purpose of this type of structure is to allow it to slide smoothly on the guide member 31. In this embodiment, taking the guide member 31 as a guide groove formed on the sleeve 33 as an example, and the structure of the guide groove of the guide member 31 is as follows: Figure 2 , 3 As shown, during the movement of sieve 1, sieve 1 is moved circumferentially based on sleeve 33, and the direction of movement of sieve 1 is as follows. Figure 3 As shown by the solid arrow in the image; During the movement of screen 1, the moving parts 32 move synchronously. When one of the moving parts 32 moves to contact one of the slopes of the guide groove and continues to move, the moving part 32 moves upward relative to the axial position of the sleeve 33 under the action of the guide groove. Since the moving part 32 is eccentrically set relative to the rotatable part of screen 1, the upward movement of the moving part 32 causes screen 1 to rotate based on its rotatable part. The rotation direction of screen 1 is as follows: Figure 3 As shown by the dashed arrow in the image; During the rotation of screen 1 based on its rotatable part, it causes another moving part 32, which is not in contact with the guide groove, to shift to the axial height of the sleeve 33 that is not inserted into the guide groove, that is, as shown in the figure. Figure 2 , 3 As shown, when the movable part 32 located inside the guide groove moves to the stop part 311, the screen 1 completes a 90° rotation based on its rotatable part. When the moving part 32 is located at the stop part 311 and the two moving parts 32 are continuously moving circumferentially based on the sleeve 33, because the moving part 32 is eccentric to the rotatable part of the screen 1, it is located between the two moving parts 32, such as Figure 3 As shown, during the continuous movement of the two moving parts 32, the moving part 32 located inside the guide groove is restricted by the stop part 311, while the other moving part 32 is not restricted because it is located outside the guide part 31. During the continuous movement of the screen 1, the moving part 32 located outside the guide part 31 moves first, and then the moving part 32 located inside the guide groove moves from top to bottom along the slope of the guide groove relative to the axial position of the sleeve 33. During this process, until the moving part 32 is completely removed from the guide groove, it then performs a 90° rotation on the screen 1. In the complete process described above, when the moving part 32 moves within a single continuous guide groove, it constitutes a 180° rotation of the screen 1, that is, during the rotation of the screen 1, it constitutes a dumping action of the soil inside the screen 1.

[0053] As a preferred arrangement: Specifically, a flipping mechanism 3 for a soil screening and sampling device includes a guide 31 comprising a bevel gear, and a moving member 32 comprising a bevel gear that can mesh with the bevel gear serving as the guide 31.

[0054] Operation method: In this embodiment, when the guide member 31 and the moving member 32 are bevel gears, the bevel gear, which is the moving member 32, moves circumferentially based on the bevel gear, which is the guide member 31. During the circumferential movement of the bevel gear, the bevel gear rotates, thereby realizing the rotation control of the screen 1 corresponding to the moving member 32.

[0055]

Example 2

[0056] The phrase "two connectors can be magnetically attracted by an electromagnet" means that an electromagnet is installed on one connector, and a material structure, such as an iron sheet, that can be attracted by the electromagnet is installed on the other connector.

[0057] With at least two screens 1 in place, a connecting frame 321 is connected to the moving parts 32 corresponding to the at least two screens 1 respectively. The connecting frame 321 is used to drive at least two sets of moving parts 32 to move circumferentially based on the sleeve 33.

[0058] The connecting frame 321 is provided with a rotation drive 323. The rotation drive 323 can be any type of rotation drive that is well known and understood by those skilled in the art, such as a motor or a motor + reducer, and can drive the connecting frame 321 to move circumferentially based on the sleeve 33.

[0059] Operation method: This invention is a soil screening and sampling device. With the provided flipping mechanism 3, if it is necessary to flip a single sieve 1 for sampling, the connection state of the electromagnetic connectors 322 on each sieve 1 is controlled during the circumferential movement of the sieve 1. This makes the electromagnetic connectors 322 on the sieve 1 to be flipped into an engaged state, while the electromagnetic connectors 322 on the other sieve 1 that do not need to be flipped into an unengaged state. In this structural state, the connecting frame 321 drives several electromagnetic connectors 322 to move synchronously by rotating based on the axis of the sleeve 33. The screen 1 connected only to the electromagnetic connector 322 moves around the sleeve 33 in the circumferential direction while the connecting frame 321 rotates. The movement and flipping mechanism of the sleeve 33 refers to the flipping mechanism in the above embodiment 1, and will not be described in detail in this embodiment.

[0060] It is worth mentioning that the set flipping mechanism 3 enables the soil in the sieve 1 to be removed in the non-off-machine state, eliminating the need for manual disassembly and assembly operations. Therefore, it also makes it possible to conduct combined research on the screening sampling device and the soil detector.

[0061] To ensure the connection strength between the electromagnetic connector 322 and the sieve 1, the preferred arrangement is as follows: Furthermore, such as Figure 2 As shown, an electromagnetic connector 322 for a soil screening and sampling device has two plugs configured to slide relative to each other only in the circumferential direction of a sleeve 33.

[0062] The two connectors are configured to slide relative to each other only in the circumferential direction of the sleeve 33, which means that they are configured as follows: Figure 2 The mortise and tenon structure shown ensures the firmness of the connection between the two connectors when they are in the connected state.

[0063] Operation method: This invention relates to a soil screening and sampling device. Through the electromagnetic connector 322, in this embodiment, the two inserts on the electromagnetic connector 322 are restricted to moving only in the circumferential direction of the sleeve 33, and not in the axial direction. For example, as... Figure 2 As shown in the structural state, the two plug-in parts are similar to a mortise and tenon structure. The mortise structure restricts the movement of the tenon structure in the axial position of the sleeve 33. Based on this, those skilled in the art will understand that the friction coefficient is increased at the contact area of ​​the two plug-in parts to further ensure the stability of the connection between the two plug-in parts under the magnetic attraction effect of the electromagnet.

[0064]

Example 3

[0065] like Figure 1As shown, a soil screening and sampling device is provided. The screening and sampling device also includes a separation mechanism 4, which is used to drive at least two screens 1 to perform axial separation. At least two sets of guide members 31 and corresponding moving members 32 are set at different axial heights based on the axial direction of the sleeve 33, and the moving members 32 are slidably connected to the connecting frame 321 based on the axial direction of the sleeve 33.

[0066] The structure used to block the joint seam refers to the joint seam that is not connected to the outside or directly exposed to the external environment after the screens 1 are connected. For example, an flared opening is provided at the upper end of the lower screen 1, which is used to cover the lower end of the upper screen 1. Or a constricted opening, such as a flange, is provided at the lower end of the upper screen 1, which is used to connect to the upper end of the lower screen 1. This is an optional arrangement made by those skilled in the art for actual implementation. It will not be described in detail in this embodiment, nor will it be considered as a further limitation on the technical features of the present invention. The separation mechanism 4 can be a circumferential moving drive such as an electric slide table that can drive the screen 1 to separate from the screen 1. This is an optional arrangement made by those skilled in the art for actual implementation, and will not be described in detail in this embodiment, nor is it intended to further limit the technical features of the present invention. The movable component 32 is axially slidably connected to the connecting frame 321 based on the sleeve 33, meaning that the connecting frame 321 may have a groove 3211 provided on it. Figure 4 In the structural state shown, when the moving part 32 is at the lowest position of the slide 3211, the moving part 32 and the corresponding guide part 31 are not at the same axial height. The number of slides 3211 on the connecting frame 321 is opened according to the number of moving parts 32, and the slides 3211 attached to each moving part 32 are independent and do not interfere with each other.

[0067] Operation method: This invention is a soil screening and sampling device. In this embodiment, a structure, such as a flange, is provided on the connecting part of one of the two contacting sieves 1 to cover the other sieve 1, thereby ensuring the sealing degree of the connection between the sieves 1 and the sieve 1. After the soil is screened, since the screens 1 are connected rather than in contact, if the soil needs to be removed, the separation mechanism 4 needs to drive each level of screen 1 to separate axially until the screen 1 does not interfere with the screen 1 connected to it during the circumferential movement based on the sleeve 33. Then the screen 1 can be moved circumferentially based on the sleeve 33.

[0068] It is worth mentioning that the separation mechanism 4 enables the soil removal operation of the non-off-machine state of the sieve 1 in the multi-layer docking state, which ensures the sealing of the docking between sieve 1 while realizing automated screening and sampling.

[0069] As a preferred arrangement: like Figure 4 , 5 As shown, a separation mechanism 4 for a soil screening and sampling device includes multiple connecting rods 41 and screws 43, with the connecting rods 41 rotatably connected end to end. In the connecting rod group, the end of the connecting rod 41 located at one end of the connecting rod group that is not connected to the connecting rod 41 is restricted to be immovable. A slider 42 corresponding to the number of sieves 1 is provided at the rotatably connected part of the multiple connecting rods 41. The slider 42 is used to support the sieves 1. The slider 42 attached to the end of the connecting rod 41 located at the other end of the connecting rod group that is not connected to the connecting rod 41 is threadedly connected to the screw 43.

[0070] Wherein, the end of the connecting rod 41 located at one end of the connecting rod assembly that is not connected to the connecting rod 41 is restricted to be immovable means that the end of the connecting rod 41 that is not connected to the connecting rod 41 can only rotate. Under the premise that the screening and sampling device is equipped with a base for placing the sieve 1, the connecting rod 41 can be rotatably connected to the base. The slider 42 on the connecting rod 41 is rotatably connected to the corresponding connecting rod 41; The screw 43 can be an external rotation drive, which controls the rotation of the screw 43.

[0071] Operation method: This invention is a soil screening and sampling device. In this embodiment, the sieve 1 and the separation mechanism 4 are configured to separate the sieve 1. The sieve 1 is separated by rotating the screw 43. During the rotation of the screw 43, a slider 42 that is threadedly engaged with it moves axially along the base rod 44. During the movement of the slider 42, the connecting rods 41 at each stage drive the corresponding slider 42 to move synchronously. During the movement of the slider 42, it provides support and force to the corresponding sieve 1, thus forming an operation mechanism that drives the sieves 1 at each stage to move synchronously.

[0072] As a preferred arrangement: like Figure 4 As shown, an electromagnetic connector 322 for a soil screening and sampling device allows two plug-in parts to slide relative to each other in the axial direction of the sleeve 33, but not relative to each other in the axial direction of the sleeve 33.

[0073] Operation method: This invention relates to a soil screening and sampling device. In this embodiment, due to the circumferential movement of the sieve 1 based on the sleeve 33, it is necessary to first move the sieve 1 axially based on the sleeve 33. To ensure that the moving part 32 corresponding to the sieve 1 can properly connect with the guide part 31 after the circumferential movement: In this embodiment, instead of the arrangement in Embodiment 2 where the movable member 32 is fixed to the connecting frame 321, the movable member 32 can slide relative to the connecting frame 321 in the axial direction of the sleeve 33, i.e. Figure 4 As shown in the structural state, the docking direction of the two plugs on the electromagnetic connector 322 is changed so that the two plugs can slide relative to each other in the axial direction of the sleeve 33, but cannot slide relative to each other in the axial direction of the sleeve 33. If one of the sieves 1 is to be selected for sampling, the engagement method of the electromagnetic connector 322 is selected during the process of moving the sieve 1 in the axial direction of the sleeve 33. This allows the sieve 1 that needs to be flipped to be magnetically attracted to its corresponding moving part 32 based on the electromagnetic connector 322, while the other sieves 1 that do not need to be flipped are disengaged from their corresponding moving parts 32 based on the electromagnetic connector 322. In this state, the sieve 1 is moved in the axial direction of the sleeve 33 to achieve separation. During the movement of the screen 1, the moving part 32 that is magnetically attracted by the electromagnetic connector 322 moves synchronously with the screen 1 to a height level with the guide 31 and waits to flip and dock. The moving part 32 that is not magnetically attracted by the electromagnetic connector 322 is at its initial height, which is not at the same height as the axial height of the corresponding guide 31. Thus, during the process of the connecting frame 321 driving the moving part 32 to move circumferentially based on the sleeve 33, only the moving part 32 that is magnetically attracted by the electromagnetic connector 322 docks and is guided by the corresponding guide 31.

[0074] As a preferred arrangement: like Figure 6 , 7 As shown, a clamp 12 is provided on the screen 1, and a base rod 44 is fitted with the clamp 12. The base rod 44 is fixed and used to limit the screen 1 when it is not moving.

[0075] Among them, the purpose of limiting the screen 1 in the non-moving state is to prevent the screen 1 from moving unnecessarily under the vibration of the screen 1 during the operation state of vibrating the screen 1, so as to prevent the screen 1 from moving unnecessarily under the vibration, which may cause unnecessary wear to the structural components. With a base plate for placing the sieve 1 in place, the base rod 44 can be fixedly connected to the base plate, such as... Figure 7The structural configuration shown, with the base rod 44 installed, can be configured to maximize the overall integration of the device as follows: Figure 5 , 7 The structure is arranged as shown, for example, the screw 43 is located inside the base rod 44, and the slider 42 is also located inside the base rod 44. The base rod 44 serves to limit and guide the slider 42. In this state, in order to enable the slider 42 to support the screen 1, a support part 421 is extended from the slider 42, and the screen 1 is supported by the support part 421. There is also a second support 422 on the first support 421. The second support 422 is rotatably connected to the first support 421, and the second support 422 is as follows: Figure 4 The rod-shaped structure shown has a force-receiving part 11 on the screen 1. The support part 422 cooperates with the force-receiving part 11 to support the screen 1 in a state where it is reset but not fully reset, or disengaged but not fully disengaged. Figure 8 In the structural state shown, even with the separation mechanism 4 in place, during the rotation and reset of the sieve 1, the structural position of the force applied to the sieve 1 on the separation mechanism 4 can be changed to achieve better support of the sieve 1. Under the premise that clamp 12 is set, and clamp 12 is as follows: Figure 7 In the semi-enclosed clamping structure shown, if the screen 1 needs to be reset after it has been moved and flipped, the screen 1 needs to be moved in the opposite direction of its original movement, and it cannot be moved in one direction around the circumference of the sleeve 33. To further ensure the stability of the screen 1 in a non-moving state, a limiting member 13 can be provided on the screen 1, and an external connector 131 can be provided to cooperate with the limiting member 13 for limiting the screen 1 to external positions. Figure 6 , 7 In the structural state shown, the limiting member 13 can be fixed to the clamp 12 to avoid interfering with the operation of the separation mechanism 4. Under the premise that a chassis for placing the screen 1 is provided, the plug-in member 131 can be fixedly connected to the chassis. The connector 131 is a pin, and the limiting member 13 is a socket that fits into the pin structure of the connector 131. The pin and the socket can slide relative to each other in the vertical direction. This arrangement corresponds to the operating mechanism in which the screen 1 can move in the axial direction. When the separating mechanism 4 drives the screen 1 to move in the axial direction until the limiting member 13 is disengaged from the connector 131, the screen 1 can be moved.

[0076]

Example 4

[0077] Operation method: This invention is a soil detector. By setting up a soil screening and sampling device, it can at least realize the processes of soil screening, sampling, and testing. In this embodiment, in addition to the operation mode that can be referred to in any of the above embodiments, it is an optional operation performed by those skilled in the art with reference to the prior art.

[0078] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A soil screening and sampling device, comprising a sieve (1) and a vibration drive (2), characterized in that: It also includes a flipping mechanism (3), which includes a moving part (32) connected to the screen (1) and a guide part (31). The guide part (31) is fixed. When the moving part (32) and the guide part (31) are docked and the moving part (32) moves in the circumferential direction based on the guide part (31), the moving part (32) is used to drive the screen (1) connected to it to rotate. Under the premise that at least two screens (1) are provided, an electromagnetic connector (322) is provided between the moving part (32) and the corresponding screen (1).

2. The soil screening and sampling device according to claim 1, characterized in that: The guide (31) includes a bevel gear, and the moving part (32) includes a bevel gear that can mesh with the bevel gear that serves as the guide (31).

3. The soil screening and sampling device according to claim 1, characterized in that: The guide member (31) includes a sleeve (33), and a guide groove is provided on the circumferential surface of the sleeve (33). The moving member (32) includes two pins that fit into the structure of the guide groove, and the two pins are distributed on both sides of the axis of the rotatable part on the screen (1). The guide groove has at least two continuous and symmetrical slopes relative to the axial direction of the sleeve (33). One slope is used to guide the moving member (32) to move from bottom to top relative to the axial direction of the sleeve (33), and the other slope is used to guide the moving member (32) to move from top to bottom relative to the axial direction of the sleeve (33). A stop part (311) is provided at the connection of the two slopes.

4. A soil screening and sampling device according to any one of claims 1 to 3, characterized in that: The electromagnetic connector (322) includes an electromagnet and two plugs. The two plugs can be magnetically attracted by the electromagnet. One of the two plugs is fixedly connected to the movable part (32), and the other is fixedly connected to the screen (1).

5. A soil screening and sampling device according to claim 4, characterized in that: The two connectors are configured to slide relative to each other only in the circumferential direction of the sleeve (33).

6. A soil screening and sampling device according to any one of claims 1 to 3, characterized in that: With at least two screens (1) provided, a connecting frame (321) is connected to the moving parts (32) corresponding to the at least two screens (1) respectively. The connecting frame (321) is used to drive at least two sets of moving parts (32) to move around the sleeve (33) in the circumferential direction.

7. A soil screening and sampling device according to claim 6, characterized in that: With at least two sieves (1) provided, a structure for blocking the joint seam is provided at the connection between the sieves (1) and the sieves (1). The screening and sampling device also includes a separation mechanism (4) for driving at least two sieves (1) to separate axially. At least two sets of guide members (31) and their corresponding moving members (32) are set at different axial heights based on the axial direction of the sleeve (33), and the moving members (32) are slidably connected to the connecting frame (321) based on the axial direction of the sleeve (33).

8. A soil screening and sampling device according to claim 7, characterized in that: The separation mechanism (4) includes multiple connecting rods (41) and screws (43), and the connecting rods (41) are rotatably connected end to end. In the connecting rod group, the end of the connecting rod (41) located at one end of the connecting rod group that is not connected to the connecting rod (41) is restricted to be immovable. A slider (42) corresponding to the number of sieves (1) is provided at the rotatably connected part of the multiple connecting rods (41). The slider (42) is used to support the sieve (1). The slider (42) attached to the end of the connecting rod (41) located at the other end of the connecting rod group that is not connected to the connecting rod (41) is threadedly connected to the screw (43).

9. A soil screening and sampling device according to claims 1-3, characterized in that: A clamp (12) is provided on the sieve (1), and a base rod (44) is provided in cooperation with the clamp (12). The base rod (44) is fixed and used to limit the sieve (1) when the sieve (1) is not moving.

10. A soil detector, characterized in that: The invention includes a soil screening and sampling device as described in any one of claims 1 to 9.

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