Sampling tube dismounting device and grain detection device for grain storage warehouse

Abstract

The application discloses a kind of coring tube dismounting device and grain detection device of grain storage warehouse, by setting first drive unit and second drive unit to drive jaw clamping or release coring tube and drive jaw rotation, and by lifting mechanism drive jaw rises or falls, and by positioning unit to respectively fix the coring tube located above and below, when positioning unit fixes two coring tubes, first drive unit can hold the coring tube located above, and by lifting mechanism the coring tube located above is moved to suitable height, in by second drive unit drives first coring tube rotation, to realize the butt joint and connection operation of two coring tubes. Similarly, the foregoing process is reversed to carry out, and the dismounting operation of two coring tubes can be realized. Not only reduce labor cost, and operation is simple, degree of automation is high, eliminates the security risk when manual butt joint or dismounting coring tube.

Description

Technical Field

[0001] This invention relates to the field of grain testing technology, and in particular to a sampling tube disassembly and assembly device and a grain testing device for grain storage silos. Background Technology

[0002] During storage, the quality of grain is affected by various factors, such as temperature, humidity, and storage time. The quality of grain in a grain silo, especially the surface layer, often differs from that of the grain inside. Therefore, existing grain testing devices for grain storage silos can obtain more representative samples by inserting sampling tubes into different depths and locations within the silo, thus more accurately reflecting the overall quality of the grain in the silo.

[0003] However, due to the varying depths of grain silos, when encountering deeper silos or when sampling and testing grain at different depths is required, the length of the sampling tube needs to be adapted. Related technologies include sampling devices formed by connecting multiple sampling tubes together. For example, in patent document CN201555727U, multiple sampling tubes are connected together by threads. Other related technologies use snap-fit ​​methods to connect the sampling tubes together.

[0004] Regardless of the connection method used, the sampling tubes need to be secured to facilitate subsequent connection and disassembly. However, current technologies typically involve manual operation to connect or disassemble multiple sampling tubes, which is complex, unsafe, and lacks automation. Summary of the Invention

[0005] This invention discloses a sampling tube disassembly and assembly device and a grain storage silo grain testing device, which at least partially improve the above-mentioned technical problems.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] On one hand, this application provides a sampling tube assembly / disassembly device, including: grippers, a first driving unit and a second driving unit, a lifting mechanism, and a positioning unit. The first driving unit and the second driving unit are respectively connected to the grippers. The first driving unit is configured to drive the grippers to clamp or release the sampling tube, and the second driving unit is configured to drive the grippers to rotate. The lifting mechanism is connected to the grippers and is used to drive the grippers to rise or fall. The positioning unit includes a first positioning mechanism and a second positioning mechanism. The first positioning mechanism is located above the second positioning mechanism. In two longitudinally adjacent sampling tubes, the first positioning mechanism is used to clamp and fix the upper sampling tube, and the second positioning mechanism is used to clamp and fix the lower sampling tube.

[0008] In one embodiment, the positioning unit further includes a first substrate, a first positioning mechanism disposed on the upper side of the first substrate, a second positioning mechanism disposed on the lower side of the first substrate, and the first substrate having a positioning hole extending through a first direction for the sampling tube to pass through.

[0009] In one embodiment, the first positioning mechanism includes a driving component and a clamping component. The two clamping components are respectively movably disposed on the first substrate and located on opposite sides of the positioning hole. The driving component is connected to the two clamping components to drive the two clamping components to move towards or away from each other, so as to position and clamp the sampling tube or release the sampling tube.

[0010] In one embodiment, the clamping assembly includes: a rotating wheel, wherein when the clamping assembly positions the sampling tube, the sampling tube abuts between at least two of the rotating wheels, and the axial direction of the rotating wheels is parallel to the first direction;

[0011] The first positioning mechanism further includes a driver, which is connected to the rotating wheel and is used to drive the rotating wheel to rotate.

[0012] In one embodiment, the second positioning mechanism includes a base and at least one positioning wheel assembly. The base is connected to the first substrate. The positioning wheel assembly includes two positioning wheels disposed on the base. The two positioning wheels are arranged in parallel and define a positioning gap between them. The positioning gap is used for the sampling tube to pass through. When the second positioning mechanism positions the sampling tube, the two positioning wheels abut against the outer periphery of the sampling tube.

[0013] In one embodiment, the gripper includes a body, a clamping part, and an elastic element. The first driving unit and the second driving unit are both connected to the body. The clamping part is connected to the elastic element and slidably connected to the body. The body is provided with a compression groove, and the elastic element is disposed in the compression groove.

[0014] In one embodiment, the gripper further includes: a first rod and a second rod, the first rod being disposed in the compression groove, one end of the first rod being connected to the clamping part, the other end of the first rod extending out of the body, the second rod being connected to the other end of the first rod and disposed perpendicular to the first rod, the other end of the second rod being connected to the body, and the elastic element being sleeved around the second rod.

[0015] In one embodiment, the first driving unit includes:

[0016] Second substrate;

[0017] A first motor is disposed on the second substrate;

[0018] A first drive wheel is connected to a first motor, and the first motor is configured to drive the first drive wheel to rotate.

[0019] A lifting wheel is threadedly fitted into the first drive wheel, and the first drive wheel is configured to drive the lifting wheel to move up and down.

[0020] A transmission seat is disposed around the lifting wheel and is fixedly connected to the lifting wheel;

[0021] A connecting rod, one end of which is hinged to the transmission seat, and a gripper connected to the other end of the connecting rod, the connecting rod being configured to open and close the gripper to clamp or release the sample tube; and

[0022] A guiding mechanism is connected to the gripper and is used to guide the gripper to move along a specified path to achieve the opening and closing of the gripper.

[0023] In one embodiment, the second driving unit includes:

[0024] A second motor, the second motor being disposed on the second substrate; and

[0025] The second drive wheel is connected to the guide mechanism and is driven by the second motor. The second drive wheel is configured to drive the gripper to rotate, thereby rotating the sampling tube. The second drive wheel is provided with a clearance channel, and the connecting rod passes through the clearance channel.

[0026] On the other hand, embodiments of this application also provide a grain storage warehouse grain testing device including any of the sampling tube disassembly and assembly devices described above.

[0027] The technical solution adopted in this invention can achieve the following beneficial effects:

[0028] The sampling tube assembly / disassembly device provided in this application embodiment uses a first drive unit and a second drive unit to drive the gripper to hold or release the sampling tube and to rotate the gripper. A lifting mechanism drives the gripper to rise or fall, and a positioning unit fixes the upper and lower sampling tubes respectively. After the positioning unit fixes the two sampling tubes, the first drive unit can grip the upper sampling tube and move it to a suitable height using the lifting mechanism. Then, the second drive unit drives the first sampling tube to rotate, thus achieving the docking and connection operation of the two sampling tubes. Similarly, reversing the above process achieves the disassembly operation of the two sampling tubes. In this application embodiment, the cooperation of the first drive unit, the second drive unit, the lifting mechanism, the positioning unit, and the gripper not only reduces labor costs but also simplifies operation, achieves a high degree of automation, and eliminates the safety hazards associated with manual docking or disassembly of sampling tubes. When the above-mentioned sampling tube grabbing mechanism is applied to the grain testing device in the grain storage warehouse, it can also reduce labor costs, and is simple to operate, highly automated, and eliminate the safety hazards that exist when manually connecting or disassembling the sampling tube. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the sampling tube is shown.

[0031] Figure 2 A schematic diagram of a sampling tube disassembly and assembly device according to an embodiment of this application is shown.

[0032] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0033] Figure 4 A schematic diagram of the gripper structure in a sampling tube disassembly and assembly device according to an embodiment of this application is shown.

[0034] Figure 5 The diagram shows a schematic representation of the structure of a first drive unit and a second drive unit in a sampling tube assembly / disassembly device according to an embodiment of this application.

[0035] Figure 6 A cross-sectional view of a first drive unit and a second drive unit in a sampling tube assembly / disassembly device according to an embodiment of this application is shown.

[0036] Figure 7 for Figure 6 Sectional view at point B.

[0037] Figure 8 A schematic diagram of the structure of the first positioning mechanism in a sampling tube disassembly and assembly device according to an embodiment of this application is shown.

[0038] Figure 9 A schematic diagram of the structure of the second positioning mechanism in a sampling tube disassembly and assembly device according to an embodiment of this application is shown.

[0039] Figure 10 A schematic diagram of the structure of a grain storage silo detection device according to an embodiment of this application is shown.

[0040] In the diagram: 1. Sampling tube assembly / disassembly device; 10. Clamping jaw; 110. Body; 111. Compression groove; 120. Clamping part; 130. Elastic element; 140. First rod; 150. Second rod; 20. First drive unit; 210. Second base plate; 220. First motor; 230. First drive wheel; 240. Lifting wheel; 250. Transmission seat; 260. Connecting rod; 270. Guide mechanism; 271. Housing; 2711. Guide groove; 272. Guide element; 30. Second drive unit; 310. Second motor; 320. Second drive wheel; 321. 40. Clearance passage; 50. Lifting mechanism; 510. Positioning unit; 511. First positioning mechanism; 512. Drive assembly; 513. Clamping assembly; 514. Rotary wheel; 521. Driver; 522. Limiting component; 521. Second positioning mechanism; 522. Base; 5211. First structural part; 5212. Second structural part; 5221. Positioning wheel; 5222. Positioning gap; 523. Fixing claw; 530. First base plate; 2. Sampling tube; 21. First end; 22. Second end; 3. Grain detection device for grain storage bin; 4. Belt; 5. Vacuum pipe. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0042] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0043] The inventive concept of this application is described here:

[0044] During storage, the quality of grain is affected by various factors, such as temperature, humidity, and storage time. The quality of grain in a grain silo, especially the surface layer, often differs from that of the grain inside. Therefore, existing grain testing devices for grain storage silos can obtain more representative samples by inserting sampling tubes into different depths and locations within the silo, thus more accurately reflecting the overall quality of the grain in the silo.

[0045] However, due to the varying depths of grain silos, when encountering deeper silos or when sampling and testing grain at different depths is required, the length of the sampling tube needs to be adapted. Related technologies include sampling devices formed by connecting multiple sampling tubes together. For example, in patent document CN201555727U, multiple sampling tubes are connected together by threads. Other related technologies use snap-fit ​​methods to connect the sampling tubes together.

[0046] Regardless of the connection method used, the sampling tubes need to be secured to facilitate subsequent connection and disassembly. However, current technologies typically involve manual operation to connect or disassemble multiple sampling tubes, which is complex, unsafe, and lacks automation.

[0047] Based on this, the inventor provides a sampling tube assembly and disassembly device, which can achieve automated splicing or disassembly of sampling tubes through the cooperation of multiple units or mechanisms. It has a high degree of automation, is easy to operate, and reduces the safety hazards of manual splicing or disassembly of sampling tubes.

[0048] The following is in conjunction with the appendix Figures 1 to 10 The sampling tube disassembly and assembly device 1 and the grain storage silo grain testing device 3 provided in this application will be described in detail through specific embodiments and application scenarios.

[0049] To facilitate understanding of the scheme in this application, the structure of the sampling tube 2 is first introduced. Please refer to [link / reference]. Figure 1 The sampling tube 2 is typically a linear tube with a first end 21 and a second end 22. The first end 21 of one sampling tube 2 can be used to connect to the second end 22 of another sampling tube 2. For example, in one embodiment, the first end 21 of the sampling tube 2 may have an internal thread, and the second end 22 of the sampling tube 2 may have an external thread that matches the aforementioned internal thread. This facilitates connecting multiple sampling tubes 2 together to improve the overall strength of the sampling tube 2.

[0050] Please also refer to Figure 2 and Figure 3 In this embodiment, the sampling tube assembly / disassembly device 1 may include: a gripper 10, a first drive unit 20 and a second drive unit 30, a lifting mechanism 40, and a positioning unit 50. The first and second drive units are both connected to the gripper 10 and are respectively used to drive the gripper 10 to clamp or release the sampling tube 2 and to drive the gripper 10 to rotate. The lifting mechanism 40 is also connected to the gripper 10 and is used to drive the gripper 10 to rise or fall. The positioning unit 50 is used to position the upper and lower sampling tubes 2 respectively, so as to facilitate the splicing or disassembly of the two sampling tubes 2.

[0051] For details, please refer to the following: Figure 3 and Figure 4 In this embodiment, the gripper 10 may include a body 110, a clamping part 120, and an elastic element 130. The clamping part 120 may be connected to the elastic element 130 and slidably connected to the body 110. In a preferred embodiment, the surface of the clamping part 120 used to contact and clamp the sampling tube 2 may be set as an arc surface, so that the cross-sectional area of ​​the clamping part 120 is larger during the clamping of the sampling tube 2, thereby making it easier for the gripper 10 to clamp the sampling tube 2 more stably.

[0052] The body 110 may be provided with a compression groove 111, and the elastic element 130 may be disposed within the compression groove 111. The compression groove 111 provides movement space for the body 110, thereby allowing the elastic element 130 to drive the body 110 to move up and down. That is to say, in this embodiment, the clamping part 120 can move relative to the body 110, and the elastic force of the elastic element 130 serves as the driving force for the clamping part 120 to move. Specifically, after the jaw 10 clamps one sampling tube 2, the jaw 10 is driven to move downward by the first connecting rod 260, thereby completing the docking with another sampling tube 2, thus preparing for the subsequent screwing of the two sampling tubes 2 together. It is understood that after the two sampling tubes 2 are docked, an external force needs to be applied to make the two sampling tubes 2 abut against each other, so as to better connect the two sampling tubes 2 by threads. At the same time, it is also necessary to avoid excessive pressure on the two sampling tubes 2 when they are brought together, which could lead to damage. Therefore, the aforementioned elastic element 130 can act as a buffer. When the two sampling tubes 2 are brought together and a certain amount of pressure is applied, the elastic element 130 can drive the clamping part 120 to move upward, ensuring that the two sampling tubes 2 are tightly pressed together while avoiding excessive pressure between them. It is understood that, in a preferred embodiment, two connecting rods 260 can also be provided, and each connecting rod 260 is connected to a clamp 10.

[0053] Please refer to it again. Figure 3 and Figure 4 In a more specific embodiment, the gripper 10 may further include a first rod 140 and a second rod 150. The first rod 140 may partially pass through the compression groove 111, and one end of the first rod 140 may be connected to the clamping part 120, while the other end may extend out of the body 110 in a horizontal direction. The second rod 150 may be connected to the other end of the first rod 140, and the second rod 150 may be arranged perpendicular to the first rod 140, that is, the second rod 150 may be arranged vertically. The other end of the second rod 150 may be connected to the body 110, and an elastic member 130 may be sleeved around the periphery of the second rod 150. In other words, in this embodiment, the elastic member 130 is disposed on the body 110 and located on the side opposite to the clamping part 120, which facilitates assembly of the entire gripper 10.

[0054] In addition, please refer to again Figure 2 and Figure 6In another embodiment, the gripper 10 can be rotatably connected to the connecting rod 260, and the two ends of the connecting rod 260 are offset in the vertical direction. Specifically, in this embodiment, the end of the connecting rod 260 connected to the gripper 10 is set further inward than the end of the connecting rod 260 that is far away from the gripper 10. This allows the movement trajectory of the gripper 10 to be arc-shaped when the connecting rod 260 drives the gripper 10. In other words, in this embodiment, the gripper 10 simultaneously clamps the sampling tube 2 and moves the sampling tube 2 downward during the process of being driven by the connecting rod 260, which helps to improve the working efficiency of the gripper 10.

[0055] Please also refer to section 2. Figure 6 and Figure 5 The first driving unit 20 can be connected to the main body 110. Specifically, the first driving unit 20 may include: a second base plate 210, a first motor 220, a first driving wheel 230, a lifting wheel 240, a transmission seat 250, a connecting rod 260, and a guide mechanism 270. The first motor 220 can be disposed on the second base plate 210, and the first driving wheel 230 can be connected to the first motor 220. The first motor 220 can be configured to drive the first driving wheel 230 to rotate. This application does not limit the rotation method of the first motor 220 driving the first driving wheel 230. In one embodiment, the output end of the first motor 220 can directly mesh with the first driving wheel 230, so that the first motor 220 drives the first driving wheel 230 to rotate. In another embodiment, the output end of the first motor 220 and the first driving wheel 230 can be driven by a belt 4, which can also enable the first motor 220 to drive the first driving wheel 230 to rotate. The specific meshing method can be set according to the actual situation. Furthermore, the embodiments of this application do not limit the specific structure and form of the first drive wheel 230, which can be set according to the cooperation method between the first drive wheel 230 and the first motor 220.

[0056] The lifting wheel 240 can be threaded into the first drive wheel 230 so that the lifting wheel 240 can be driven by the first drive wheel 230 and move up and down relative to the first drive wheel 230.

[0057] The transmission seat 250 can be disposed on the periphery of the lifting wheel 240 and connected and fixed to the lifting wheel 240. The transmission seat 250 can serve as a carrier for other subsequent components. It is understood that since the lifting wheel 240 needs to cooperate with the first drive wheel 230 and the lifting wheel 240 is located inside the first drive wheel 230, it is difficult to transmit the power of the lifting wheel 240 to other components for vertical movement. Therefore, in this embodiment, the transmission seat 250 can be used to transmit the aforementioned power of vertical movement.

[0058] In one specific embodiment, the axial length of the lifting wheel 240 can be greater than the axial length of the first drive wheel 230. This allows one end of the lifting wheel 240 to extend beyond the first drive wheel 230, and the transmission seat 250 can be connected to the part of the lifting wheel 240 that extends beyond the first drive wheel 230 and enclose this part within the transmission seat 250. This can also avoid or reduce the possibility of damage to the lifting wheel 240 caused by external environmental influences.

[0059] One end of the connecting rod 260 can be hinged to the transmission base 250, and the other end of the connecting rod 260 can be connected to the gripper 10. The connecting rod 260 can be used to receive the aforementioned up-and-down movement power. Since the connecting rod 260 is hinged to the transmission base 250, the connecting rod 260 can transmit not only up-and-down movement power to subsequent components, but also left-and-right movement power to subsequent components, thereby making the subsequent components more flexible. Specifically, in this embodiment, the connecting rod 260 can be configured to drive the gripper 10 to open and close to clamp or release the sampling tube 2.

[0060] The guide mechanism 270 can be connected to the gripper 10 and can be used to guide the gripper 10 to move along a specified path to achieve the opening and closing of the gripper 10. The embodiments of this application do not limit the specific form of the guide mechanism 270. For example, in one embodiment, the guide mechanism 270 can be in the form of an oblong hole to guide the gripper 10 to move inward while moving downward.

[0061] The second drive unit 30 can also be connected to the gripper 10. Specifically, the second drive unit 30 may include a second motor 310 and a second drive wheel 320. The second motor 310 can be disposed on the second base plate 210, and the second drive wheel 320 is connected to the second motor 310 in a transmission manner. The second drive wheel 320 can be configured to drive the gripper 10 to rotate, thereby rotating the sampling tube 2. Specifically, when the two sampling tubes 2 are connected, the second drive wheel 320 can drive one of the sampling tubes 2 to rotate. Based on the elastic pressure applied by the elastic element 130, a threaded connection between the two sampling tubes 2 can be achieved, and the two sampling tubes 2 can be tightened. In this embodiment, the rotation force of the second drive wheel 320 is controllable, which allows the tightening force of the two sampling tubes 2 to be controllable during the tightening process, and ensures that the two sampling tubes 2 can be tightened in place, avoiding the safety hazards caused by insufficient tightening of the sampling tubes 2 when manually connecting them.

[0062] It should be noted that the embodiments of this application do not limit the transmission connection method between the second motor 310 and the second drive wheel 320. For example, the transmission connection method between the second motor 310 and the second drive wheel 320 can be referred to the transmission connection method between the first motor 220 and the first drive wheel 230, which will not be described in detail here.

[0063] For further information, please refer to the following: Figure 6 and Figure 7 In this embodiment, the second drive wheel 320 can pass through the clearance channel 321, and the connecting rod 260 can pass through the clearance channel 321. This reduces the overall size of the sampling tube 2 gripping mechanism. Simultaneously, the clearance channel 321 also protects and limits the connecting rod 260, ensuring that the connecting rod 260 can move accurately up and down within the clearance channel 321, thereby ensuring that the gripper 10 can accurately open and close.

[0064] As mentioned above, please also refer to Figure 3 and Figure 5 In this embodiment, the guiding mechanism 270 may include a housing 271 and a guide member 272. The housing 271 may be connected to the end face of the second drive wheel 320, and a guide groove 2711 may be provided on the housing 271. The housing 271 helps to prevent or reduce the possibility of damage to the oblong hole. The guide member 272 may be connected to the gripper 10 and embedded in the guide groove 2711, allowing the gripper 10 to move along the guide groove 2711, thereby ensuring and realizing the opening and closing function of the gripper 10. This embodiment does not limit the specific form of the guide groove 2711; for example, in one embodiment, the guide groove 2711 may also be in the form of an oblong hole.

[0065] For example, in another embodiment, the guide groove 2711 can be configured as a circular hole, and the guide member 272 can be configured as a circular plate. The guide member 272 can be eccentrically disposed within the guide groove 2711. The guide member 272 can rotate within the guide groove 2711 to drive the gripper 10 to move. Furthermore, when the guide member 272 rotates within the guide groove 2711, the eccentricity of the guide member 272 enables the gripper 10 to open and close. It should be noted that the embodiments of this application do not limit the depth of the guide groove 2711 or the thickness of the guide member 272; these can be set according to actual conditions.

[0066] For details, please refer to the following document again. Figure 5 The guide groove 2711 can be set to multiple, and the number of guide members 272 can be set to be the same as the number of guide grooves 2711. This can improve the fault tolerance of the entire guide mechanism 270. When one pair of guide members 272 and guide groove 2711 is damaged or fails, the guide mechanism 270 can still guide the gripper 10.

[0067] In this embodiment, four guide grooves 2711 are used as an example. The four guide grooves 2711 can be configured such that their connecting lines form a parallelogram. The connecting rod 260 can be hinged to the gripper 10, which allows the connecting rod 260 to transmit force to the gripper 10 and drive the gripper 10 to tilt downward for clamping the sample tube 2. The guide member 272 can drive the gripper 10 to translate relative to the guide groove 2711, preventing the movement trajectory of the part of the gripper 10 near the connecting rod 260 from being longer than the part of the gripper 10 away from the connecting rod 260. This facilitates the gripper 10 in clamping the sample tube 2 and improves the clamping stability of the gripper 10.

[0068] As mentioned above, since the gripper 10 includes an elastic element 130, in two longitudinally adjacent sampling tubes 2, the gripper 10 clamps the upper sampling tube 2 to thread it into the lower sampling tube 2. Since the gripping part 120 of the gripper 10 can be subjected to the preload applied by the elastic element 130, the thread of the upper sampling tube 2 can be kept in abutting state with the thread of the lower sampling tube 2. When the gripper 10 is driven by the second motor 310 to rotate, the upper sampling tube 2 can automatically adapt to the height and angle difference of the lower sampling tube 2, so that the threads of the two can be accurately rotated to form a threaded pair, and thus the two sampling tubes 2 can be rotated and tightened. Specifically, the second drive wheel 320 drives the guide mechanism 270 to rotate. Since the guide mechanism 270 is connected to the gripper 10, the second drive wheel 320 can drive the gripper 10 to rotate, thereby enabling the gripper 10 to hold the sampling tube 2 and drive the sampling tube 2 to move and rotate. Furthermore, the rotation force of the second drive wheel 320 is controllable, thereby making the tightening force of the sampling tube 2 during threaded connection controllable and ensuring that the sampling tube 2 is tightened in place.

[0069] Please also refer to Figure 2 , Figure 8 and Figure 9 The positioning unit 50 may include a first positioning mechanism 510 and a second positioning mechanism 520, wherein the first positioning mechanism 510 may be located above the second positioning mechanism 520. In two longitudinally adjacent sampling tubes 2, the first positioning mechanism 510 is used to clamp and fix the upper sampling tube 2, and the second positioning mechanism 520 is used to clamp and fix the lower sampling tube 2.

[0070] Specifically, in this embodiment, the positioning unit 50 may further include a first substrate 530, a first positioning mechanism 510 may be disposed on the upper side of the first substrate 530, and a second positioning mechanism 520 may be disposed on the lower side of the first substrate 530. The first substrate 530 may have a positioning hole extending through along a first direction (Y direction in the figure). The positioning hole can be used for the sampling tube 2 to pass through, and the positioning hole can play a role in pre-positioning the sampling tube 2. Preferably, the first direction can be a vertical direction, that is, the first direction can be perpendicular to the surface of the first substrate 530. This application embodiment does not limit the specific structure and form of the positioning hole. In a preferred embodiment, the positioning hole can be matched with the structure of the sampling tube 2.

[0071] Please also refer to Figure 2 and Figure 8 The first positioning mechanism 510 can be used to position and clamp the upper sampling tube 2, specifically to position the second end 22 of the upper sampling tube 2, preventing the upper sampling tube 2 from swinging during docking. In this embodiment, the first positioning mechanism 510 may include a driving component 511 and a clamping component 512. The driving component 511 can be used to drive the clamping component 512 to move, so as to selectively position and clamp the sampling tube 2 or release the sampling tube 2.

[0072] In this embodiment, multiple clamping components 512 can be provided, such as two, three, or four, etc., without limitation. The clamping components 512 can be evenly arranged around the periphery of the positioning hole. Specifically, for ease of explanation, the following description will take two clamping components 512 as an example.

[0073] Two clamping components 512 are positioned on opposite sides of the positioning hole in the radial direction, which improves the positioning and clamping effect of the clamping components 512 on the sampling tube 2. The driving component 511 can be used to drive the two clamping components 512 to move towards or away from each other. Specifically, when the two clamping components 512 move towards each other, they can be used to position and clamp the sampling tube 2; when the two clamping components 512 move away from each other, they can be used to release the sampling tube 2.

[0074] Please continue reading. Figure 8 In a more specific embodiment, the drive assembly 511 can be one of a reciprocating screw, a forward and reverse threaded screw, or a left and right threaded screw, and the two clamping assemblies 512 can be respectively disposed at both ends of the drive assembly 511. Taking the drive assembly 511 as a reciprocating screw as an example, this screw has two threaded grooves with the same pitch but opposite directions of rotation. By rotating the screw, the two clamping assemblies 512 can be driven to reciprocate in opposite directions along the screw axis, thereby realizing the positioning and clamping of the sampling tube 2 or the release of the sampling tube 2 by the two clamping assemblies 512.

[0075] Furthermore, this application does not limit the specific form and structure of the clamping component 512. For example, in some embodiments, the clamping component 512 can be configured as a clamping block, and the sampling tube 2 can be positioned and clamped by abutment and compression. As another example, in this embodiment, the clamping component 512 may include rotating wheels 5121. When the clamping component 512 positions the sampling tube 2, the sampling tube 2 abuts between at least two rotating wheels 5121. Specifically, taking the sampling tube 2 abutting against three rotating wheels 5121 as an example, one side of the sampling tube 2 abuts against one rotating wheel 5121, and the other side abuts against two rotating wheels 5121. The triangular stable structure can firmly position and clamp the sampling tube 2. Preferably, both sides of the sampling tube 2 can abut against two rotating wheels 5121, which facilitates the fixation of the sampling tube 2.

[0076] It should be noted that in this embodiment, the axial direction of the rotating wheel 5121 can be parallel to the first direction, that is, the axial direction of the rotating wheel 5121 is also parallel to the axial direction of the sampling tube 2, so that the sampling tube 2 and the rotating wheel 5121 can rotate relative to each other.

[0077] Furthermore, in this embodiment, the first positioning mechanism 510 may also include a driver 513, which may be connected to the rotating wheel 5121 and used for the rotation of the driver 513. This application embodiment does not limit the specific structure and form of the driver 513. For details, please refer to the relevant description of the driving component 511, which will not be repeated here.

[0078] In this embodiment, the rotating wheel 5121 can be a drive wheel. When the rotating wheel 5121 abuts against the outer surface of the sampling tube 2, it can rotate under the drive of the driver 513, thereby causing the sampling tube 2 to rotate. Since the two sampling tubes 2 are connected by threads, the upper sampling tube 2 can rotate when driven by the rotating wheel 5121. It should be noted that the direction of rotation is not limited here. That is, when the upper sampling tube 2 rotates, it can be threadedly connected to the lower sampling tube 2 or separated from it. Therefore, in this embodiment, the first positioning mechanism 510 not only has the function of positioning the sampling tube 2, but also can rotate the upper sampling tube 2, so that the two sampling tubes 2 can be threadedly connected or disassembled, thereby realizing the quick completion of the splicing operation after the sampling tubes 2 are connected or the quick disassembly operation of the two sampling tubes 2. As mentioned above, in this embodiment, the driver 513 can cooperate with the first motor 220 to drive the sampling tube 2 located above to rotate. Since the driver 513 and the first motor 220 act on the two ends of the sampling tube 2 respectively, the cooperation between the driver 513 and the first motor 220 can promote the overall movement of the sampling tube 2 and avoid the sampling tube 2 being damaged due to excessive torque received at the end of the sampling tube 2.

[0079] It should be noted that, in this embodiment, since the docking of the sampling tube 2 is performed at the end, the rotating wheel 5121 is positioned near the end of the sampling tube 2, which can improve the docking effect and accuracy of the sampling tube 2, and at the same time save effort and reduce the driving burden of the driver 513.

[0080] Furthermore, in some embodiments, the first positioning mechanism 510 may also include a limiting member 514, which may be disposed on the base 521, and the clamping component 512 may be movably disposed on the limiting member 514. This ensures a more precise movement path for the clamping component 512 and more precise positioning and clamping of the sampling tube 2 by the clamping component 512. It should be noted that the embodiments of this application do not limit the specific structure of the limiting member 514. For example, in one embodiment, the limiting member 514 may be a guide rail, and the clamping component 512 may be movably disposed on the guide rail. This not only ensures a more accurate movement path for the clamping component 512 but also improves the structural stability of the clamping component 512 relative to the base 521, preventing the sampling tube 2 from colliding with the clamping component 512 during swinging, thus avoiding displacement of the clamping component 512.

[0081] This application does not limit the specific form of the second positioning mechanism 520. For example, in one embodiment, the second positioning mechanism 520 can be configured in the same way as the first positioning mechanism 510. For details, please refer to the configuration of the first positioning mechanism 510, which will not be elaborated here.

[0082] Please also refer to Figure 2 and Figure 9 In this embodiment, the second positioning mechanism 520 may include a base 521 and at least one positioning wheel assembly. The base 521 may be connected to the first substrate 530. The positioning wheel assembly may include two positioning wheels 5221 disposed on the base 521. Both positioning wheels 5221 are rotatably connected to the base 521. The two positioning wheels 5221 may be arranged in parallel, and a positioning gap 5222 may be defined between the two positioning wheels 5221. The positioning gap 5222 may be used for the sampling tube 2 to pass through. When the second positioning mechanism 520 positions the sampling tube 2, the sampling tube 2 may be inserted into the positioning gap 5222, and the two positioning wheels 5221 may abut against the outer periphery of the sampling tube 2.

[0083] Preferably, the contact surface between the positioning wheel 5221 and the sampling tube 2 can be concave. When the second positioning mechanism 520 positions the sampling tube 2, the outer surface of the sampling tube 2 can be wrapped around the outer surfaces of the two positioning wheels 5221. This not only improves the positioning and clamping effect of the sampling tube 2, but also reduces the possibility of damage to the sampling tube 2 caused by the external environment. Specifically, in this embodiment, the axial direction of the positioning wheel 5221 can be perpendicular to the first direction, that is, the axial direction of the positioning wheel 5221 can also be perpendicular to the axial direction of the sampling tube 2.

[0084] This application embodiment does not limit the specific structure of the substrate 521; it can be configured according to actual conditions. In this embodiment, the substrate 521 may include a first structural portion 5211 and a second structural portion 5212. The first structural portion 5211 can be connected to the first substrate 530 and extends along a first direction, disposed away from the first substrate 530. Specifically, in this embodiment, the first structural portion 5211 can be configured as a structure similar to a hanging basket. The second structural portion 5212 can be configured as a sheet-like structure with a hollowed-out central portion, and the second structural portion 5212 can be connected to both sides of the first structural portion 5211. The positioning wheel 5221 can be rotatably connected between the two second structural portions 5212.

[0085] Furthermore, in this embodiment, multiple sets of positioning wheels can be provided, and these multiple sets of positioning wheels can be arranged along the first direction, which can further increase the positioning and clamping effect of the second positioning mechanism 520 on the sampling tube 2.

[0086] In one embodiment, the second positioning mechanism 520 may further include a fixing claw 523, which may be disposed on the base 521, specifically on the first structural portion 5211, and connected to the surface of the first structural portion 5211 away from the substrate. The fixing claw 523 can be used to selectively grip or release the sampling tube 2, thereby further improving the positioning and clamping capability of the second positioning mechanism 520 on the sampling tube 2. In a more specific embodiment, when two sets of positioning wheels are provided, the fixing claw 523 may be disposed between the two sets of positioning wheels.

[0087] In summary, the sampling tube assembly / disassembly device provided in this application embodiment uses a first driving unit 20 and a second driving unit 30 to drive the gripper 10 to clamp or release the sampling tube 2 and to drive the gripper 10 to rotate. A lifting mechanism 40 drives the gripper 10 to rise or fall, and a positioning unit 50 fixes the upper and lower sampling tubes 2 respectively. After the positioning unit 50 fixes the two sampling tubes 2, the first driving unit 20 can clamp the upper sampling tube 2, and the lifting mechanism 40 moves the upper sampling tube 2 to a suitable height. Then, the second driving unit 30 drives the first sampling tube 2 to rotate, thereby achieving the docking and connection operation of the two sampling tubes 2. Similarly, reversing the above process allows for the disassembly of the two sampling tubes 2. In this embodiment, the cooperation of the first drive unit 20, the second drive unit 30, the lifting mechanism 40 and the positioning unit 50 with the gripper 10 not only reduces labor costs, but also simplifies operation, has a high degree of automation, and eliminates the safety hazards that exist when manually docking or disassembling the sampling tube 2.

[0088] Please also refer to Figure 2 and Figure 10 This application also provides a grain storage silo testing device 3. The grain storage silo testing device 3 may include any of the sampling tube assembly / disassembly devices described above, and may also include a vacuum pipe 5. The vacuum pipe 5 can be connected to the second base plate 210, and can pass through the lifting wheel 240 and the transmission seat 250. It is understood that the vacuum pipe 5 is a vacuum environment, and the vacuum pipe 5 can selectively seal and connect with the sampling tube 2. The grain sample sucked by the sampling tube 2 can pass through the vacuum pipe 5 and then be sent to the subsequent testing mechanism.

[0089] In summary, since the grain storage warehouse grain testing device 3 provided in this application embodiment adopts the above-mentioned sampling tube disassembly and assembly device, the grain storage warehouse grain testing device 3 provided in this application embodiment can also reduce labor costs, and is simple to operate, highly automated, and eliminate the safety hazards that exist when manually connecting or disassembling the sampling tube 2.

[0090] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0091] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0092] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A sampling tube assembly / disassembly device, characterized in that, include: Gripper; A first driving unit and a second driving unit are respectively connected to the gripper. The first driving unit is configured to drive the gripper to clamp or release the sampling tube, and the second driving unit is configured to drive the gripper to rotate. A lifting mechanism is connected to the gripper, and the lifting mechanism is used to drive the gripper to rise or fall; as well as The positioning unit includes a first positioning mechanism and a second positioning mechanism. The first positioning mechanism is located above the second positioning mechanism. In two longitudinally adjacent sampling tubes, the first positioning mechanism is used to clamp and fix the upper sampling tube, and the second positioning mechanism is used to clamp and fix the lower sampling tube. The positioning unit further includes a first substrate, a first positioning mechanism disposed on the upper side of the first substrate, a second positioning mechanism disposed on the lower side of the first substrate, and the first substrate has a positioning hole extending through a first direction, the positioning hole being used for the sampling tube to pass through. The first positioning mechanism includes a driving component and a clamping component. The two clamping components are respectively movably disposed on the first substrate and located on opposite sides of the positioning hole. The driving component is connected to the two clamping components to drive the two clamping components to move towards or away from each other, so as to position and clamp the sampling tube or release the sampling tube. The second positioning mechanism includes: a base and at least one positioning wheel assembly. The base is connected to the first substrate. The positioning wheel assembly includes two positioning wheels disposed on the base. The two positioning wheels are arranged in parallel and a positioning gap is defined between them. The positioning gap is used for the sampling tube to pass through. When the second positioning mechanism positions the sampling tube, the two positioning wheels abut against the outer periphery of the sampling tube. The first driving unit includes: Second substrate; A first motor is disposed on the second substrate; A first drive wheel is connected to a first motor, and the first motor is configured to drive the first drive wheel to rotate. A lifting wheel is threadedly fitted into the first drive wheel, and the first drive wheel is configured to drive the lifting wheel to move up and down. A transmission seat is disposed around the lifting wheel and is fixedly connected to the lifting wheel; A connecting rod, one end of which is hinged to the transmission seat, and a gripper connected to the other end of the connecting rod, the connecting rod being configured to open and close the gripper to clamp or release the sample tube; and A guiding mechanism is connected to the gripper and is used to guide the gripper to move along a specified path to achieve the opening and closing of the gripper; The second drive unit includes: A second motor, the second motor being disposed on the second substrate; and The second drive wheel is connected to the guide mechanism and is driven by the second motor. The second drive wheel is configured to drive the gripper to rotate, thereby rotating the sampling tube. The second drive wheel is provided with a clearance channel, and the connecting rod passes through the clearance channel.

2. The sampling tube disassembly and assembly device according to claim 1, characterized in that, The clamping assembly includes: a rotating wheel, wherein when the clamping assembly positions the sampling tube, the sampling tube abuts between at least two of the rotating wheels, and the axial direction of the rotating wheels is parallel to the first direction; The first positioning mechanism further includes a driver, which is connected to the rotating wheel and is used to drive the rotating wheel to rotate.

3. The sampling tube assembly / disassembly device according to claim 1, characterized in that, The gripper includes a body, a clamping part, and an elastic element. The first driving unit and the second driving unit are both connected to the body. The clamping part is connected to the elastic element and slidably connected to the body. The body is provided with a compression groove, and the elastic element is disposed in the compression groove.

4. The sampling tube disassembly and assembly device according to claim 3, characterized in that, The gripper further includes a first rod and a second rod. The first rod is disposed in the compression groove. One end of the first rod is connected to the clamping part, and the other end of the first rod extends out of the body. The second rod is connected to the other end of the first rod and is disposed perpendicular to the first rod. The other end of the second rod is connected to the body, and the elastic element is sleeved around the second rod.

5. A grain detection device for a grain storage warehouse, characterized in that, Includes the sampling tube disassembly and assembly device as described in any one of claims 1-4.

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