Sampling tube dismounting and mounting device and grain detection device for grain storage barn

Abstract

According to the sampling pipe dismounting and mounting device and the grain storage bin grain detection device, a first driving unit and a second driving unit are arranged to drive a clamping jaw to clamp or release a sampling pipe and drive the clamping jaw to rotate, and the clamping jaw is driven to ascend or descend through a lifting mechanism; the first driving unit is arranged on the upper portion of the sampling pipe, the positioning unit is used for fixing the sampling pipe located on the upper portion and the sampling pipe located on the lower portion respectively, and after the positioning unit fixes the two sampling pipes, the first driving unit can clamp the sampling pipe located on the upper portion and move the sampling pipe located on the upper portion to a proper height through the lifting mechanism. And the second driving unit drives the first sampling pipe to rotate so as to realize butt joint and connection operation of the two sampling pipes. Similarly, the process is carried out in turn, so that the two sampling pipes can be disassembled. The labor cost is reduced, the operation is simple, the automation degree is high, and the potential safety hazard existing when the sampling pipe is manually butted or disassembled is eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of grain detection, and in particular to a sampling tube disassembly and assembly device and a grain detection device for a grain storage bin. Background Art

[0002] During the storage process, the quality of grain will be affected by many factors, such as temperature, humidity, storage time, etc. The quality of grain in the granary, especially the grain on the surface, is often different from that of the grain inside. Based on this, the grain detection device for grain storage in the prior art can insert a sampling tube into the granary at different depths and positions to obtain more representative samples, thereby more accurately reflecting the quality of the grain in the entire warehouse.

[0003] However, due to the different depths of granaries, when the granary is deep or when sampling and testing of grains at different depths is required, the length of the sampling tube needs to be adaptively extended. In the related art, there is a sampling device formed by a plurality of sampling tubes connected together. For example, in the patent document with publication number CN201555727U, a plurality of sampling tubes are connected together by threaded connection. In addition, there is a related art that uses a clamping method to connect the sampling tubes together.

[0004] Regardless of the connection method, the sampling tube needs to be fixed so that it is convenient for the subsequent connection of the sampling tube, and the same is true for the removal of the sampling tube. However, the prior art usually uses manual operation to achieve the connection or removal of multiple sampling tubes, which has the problems of complex operation, poor safety and low automation. Summary of the invention

[0005] The invention discloses a sampling tube disassembly and assembly device and a grain detection device for a grain storage bin, so as to at least partially improve the above technical problems.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions: On the one hand, an embodiment of the present application provides a sampling tube disassembly and assembly device, comprising: a clamp, a first drive unit and a second drive unit, a lifting mechanism and a positioning unit. The first drive unit and the second drive unit are respectively connected to the clamp, the first drive unit is configured to drive the clamp to clamp or release the sampling tube, and the second drive unit is configured to drive the clamp to rotate. The lifting mechanism is connected to the clamp, and the lifting mechanism is used to drive the clamp 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, and 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.

[0007] In one embodiment, the positioning unit further includes a first substrate, the first positioning mechanism is disposed on the upper side of the first substrate, the second positioning mechanism is disposed on the lower side of the first substrate, the first substrate has a positioning hole penetrating along a first direction, and the positioning hole is used for the sampling tube to pass through.

[0008] In one embodiment, the first positioning mechanism includes a driving component and a clamping component, and the two clamping components are movably arranged 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 toward or away from each other to position and clamp the sampling tube or release the sampling tube.

[0009] In one embodiment, the clamping assembly comprises: a rotating wheel, 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 wheel 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.

[0010] In one embodiment, the second positioning mechanism includes: a base and at least one positioning wheel group, the base is connected to the first substrate, the positioning wheel group includes two positioning wheels arranged on the base, the two positioning wheels are arranged in parallel and define a positioning gap therebetween, 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.

[0011] In one embodiment, the clamp includes: a main body, a clamping portion and an elastic member, the first drive unit is connected to the main body and the second drive unit is connected to the elastic member, the clamping portion is connected to the elastic member and is slidably connected to the main body, the main body is provided with a compression groove, and the elastic member is arranged in the compression groove.

[0012] In one embodiment, the clamp further includes: a first rod and a second rod, the first rod is arranged in the compression groove, one end of the first rod is connected to the clamping portion, 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 the second rod is arranged perpendicular to the first rod, the other end of the second rod is connected to the body, and the elastic member is sleeved on the outer periphery of the second rod.

[0013] In one embodiment, the first driving unit comprises: a second substrate; a first motor, wherein the first motor is disposed on the second substrate; a first driving wheel, wherein the first driving wheel is connected to the first motor, and the first motor is configured to drive the first driving wheel to rotate; A lifting wheel, wherein the lifting wheel is threadably engaged with the first driving wheel, and the first driving wheel is configured to drive the lifting wheel to move up and down; A transmission seat, the transmission seat is arranged at the periphery of the lifting wheel and is connected and fixed to the lifting wheel; A connecting rod, one end of which is hinged to the transmission seat, the clamping claw is connected to the other end of the connecting rod, and the connecting rod is configured to drive the clamping claw to open and close to clamp or release the sampling tube; and A guide mechanism is connected to the clamping jaw, and the guide mechanism is used to guide the clamping jaw to move along a specified path to achieve the opening and closing of the clamping jaw.

[0014] In one embodiment, the second driving unit comprises: a second motor, the second motor being disposed on the second substrate; and The second driving wheel is connected with the guide mechanism and is in driving connection with the second motor. The second driving wheel is configured to drive the clamping jaw to rotate so as to rotate the sampling tube. The second driving wheel is penetrated by an avoidance channel, and the connecting rod passes through the avoidance channel.

[0015] On the other hand, an embodiment of the present application also provides a grain storage bin grain detection device including any one of the sampling tube disassembly and assembly devices described above.

[0016] The technical solution adopted by the present invention can achieve the following beneficial effects: The sampling tube assembly device provided in the embodiment of the present application is provided with a first driving unit and a second driving unit to drive the clamp to clamp or release the sampling tube and drive the clamp to rotate, and the clamp is driven to rise or fall by a lifting mechanism, and the positioning unit is used to fix the sampling tubes located above and below respectively. After the positioning unit fixes the two sampling tubes, the first driving unit can clamp the sampling tube located above, and move the sampling tube located above to a suitable height by the lifting mechanism, and then drive the first sampling tube to rotate by the second driving unit to achieve the docking and connection operation of the two sampling tubes. Similarly, the disassembly operation of the two sampling tubes can be achieved by reversing the aforementioned process. In the embodiment of the present application, the cooperation of the first driving unit, the second driving unit, the lifting mechanism, and the positioning unit with the clamp not only reduces the labor cost, but also is simple to operate, has a high degree of automation, and eliminates the safety hazards existing when manually docking or disassembling the sampling tube. When the above-mentioned sampling tube grabbing mechanism is applied to the grain detection device of the grain storage bin, it can also reduce the labor cost, and has the advantages of simple operation, high degree of automation, and elimination of the potential safety hazards when manually docking or disassembling the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The schematic diagram of the structure of the sampling tube is shown; Figure 2 A schematic structural diagram of a sampling tube disassembly and assembly device in one embodiment of the present application is shown; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 A schematic diagram of the structure of a clamping jaw in a sampling tube disassembly and assembly device in one embodiment of the present application is shown; Figure 5 A schematic diagram showing the structure of a first driving unit and a second driving unit in a sampling tube disassembly and assembly device in an embodiment of the present application is shown; Figure 6 A cross-sectional view of a first driving unit and a second driving unit in a sampling tube disassembly and assembly device in an embodiment of the present application is shown; Figure 7 for Figure 6 Sectional view at B in the middle; Figure 8 A schematic structural diagram of a first positioning mechanism in a sampling tube disassembly and assembly device in one embodiment of the present application is shown; Fig. 9 A schematic diagram of the structure of a second positioning mechanism in a sampling tube disassembly and assembly device in one embodiment of the present application is shown; Fig.10 A structural schematic diagram of a grain detection device for a grain storage bin in one embodiment of the present application is shown.

[0019] In the figure: 1, sample tube disassembly and assembly device; 10, clamping claw; 110, body; 111, compression groove; 120, clamping part; 130, elastic member; 140, first rod; 150, second rod; 20, first driving unit; 210, second base plate; 220, first motor; 230, first driving wheel; 240, lifting wheel; 250, transmission seat; 260, connecting rod; 270, guide mechanism; 271, housing; 2711, guide groove; 272, guide member; 30, second driving unit; 310, second motor; 320, second driving wheel; 321, Avoidance channel; 40, lifting mechanism; 50, positioning unit; 510, first positioning mechanism; 511, driving assembly; 512, clamping assembly; 5121, rotating wheel; 513, driver; 514, limiting member; 520, second positioning mechanism; 521, 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 storage bin food detection device; 4, belt; 5, vacuum pipe. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0021] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0022] The inventive concept of the present application is described here: During the storage process, the quality of grain will be affected by many factors, such as temperature, humidity, storage time, etc. The quality of grain in the granary, especially the grain on the surface, is often different from that of the grain inside. Based on this, the grain detection device for grain storage in the prior art can insert a sampling tube into the granary at different depths and positions to obtain more representative samples, thereby more accurately reflecting the quality of the grain in the entire warehouse.

[0023] However, due to the different depths of granaries, when the granary is deep or when sampling and testing of grains at different depths is required, the length of the sampling tube needs to be adaptively extended. In the related art, there is a sampling device formed by a plurality of sampling tubes connected together. For example, in the patent document with publication number CN201555727U, a plurality of sampling tubes are connected together by threaded connection. In addition, there is a related art that uses a clamping method to connect the sampling tubes together.

[0024] Regardless of the connection method, the sampling tube needs to be fixed so that it is convenient for the subsequent connection of the sampling tube, and the same is true for the removal of the sampling tube. However, the prior art usually uses manual operation to achieve the connection or removal of multiple sampling tubes, which has the problems of complex operation, poor safety and low automation.

[0025] Based on this, the inventor provides a sampling tube disassembly and assembly device, which can realize the automatic splicing or disassembly of sampling tubes through the mutual 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.

[0026] The following is combined with Figures 1 to 10 , the sampling tube disassembly and assembly device 1 and the grain storage bin grain detection device 3 provided in the present application are described in detail through specific embodiments and their application scenarios.

[0027] In order to facilitate understanding of the solution of the present application, the structure of the sampling tube 2 is first introduced. Figure 1 The sampling tube 2 is generally a linear pipe, and the sampling tube 2 has a first end 21 and a second end 22 opposite to each other, wherein the first end 21 of one sampling tube 2 can be used to connect with the second end 22 of another sampling tube 2. For example, in one embodiment, the first end 21 of the sampling tube 2 can have an internal thread, and the second end 22 of the sampling tube 2 can have an external thread matching the aforementioned internal thread, so that multiple sampling tubes 2 can be easily connected together to improve the overall strength of the sampling tube 2.

[0028] Please also see Figure 2 and Figure 3In this embodiment, the sampling tube disassembly device 1 may include: a clamp 10, a first drive unit 20 and a second drive unit 30, a lifting mechanism 40 and a positioning unit 50, wherein the first drive device and the second drive device are both connected to the clamp 10, and are respectively used to drive the clamp 10 to clamp or release the sampling tube 2 and to drive the clamp 10 to rotate. The lifting mechanism 40 is also connected to the clamp 10, and is used to drive the clamp 10 to rise or fall. The positioning unit 50 is used to respectively position the upper sampling tube 2 and the lower sampling tube 2, so as to facilitate the splicing or disassembly of the two sampling tubes 2.

[0029] For details, please also refer to Figure 3 and Figure 4 In this embodiment, the clamp 10 may include: a main body 110, a clamping portion 120 and an elastic member 130. The clamping portion 120 may be connected to the elastic member 130 and slidably connected to the main body 110. In a preferred embodiment, the surface of the clamping portion 120 used to contact and clamp the sampling tube 2 may be set to an arc surface, so that the cross-sectional area of ​​the clamping portion 120 is larger during the process of clamping the sampling tube 2, thereby facilitating the clamp 10 to clamp the sampling tube 2 more stably.

[0030] The main body 110 may be provided with a compression groove 111, and the elastic member 130 may be arranged in the compression groove 111. The compression groove 111 may provide a movable space for the main body 110, so that the elastic member 130 drives the main body 110 to move up and down. That is to say, in the present embodiment, the clamping portion 120 may move relative to the main body 110, and the elastic force of the elastic member 130 may be used as the power to drive the clamping portion 120 to move. Specifically, after the clamping jaw 10 clamps a sampling tube 2, the first connecting rod 260 continues to drive the clamping jaw 10 to move downward, so as to complete the docking with another sampling tube 2, and then prepare for the subsequent screwing of the two sampling tubes 2 together. It is understandable 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 that the two sampling tubes 2 can be better threadedly connected. At the same time, it is necessary to avoid the two sampling tubes 2 being subjected to excessive pressure from each other after abutting against each other, resulting in damage. Therefore, the elastic member 130 can be used as a buffer. When the two sampling tubes 2 are abutted and have a certain pressure, the elastic member 130 can drive the clamping part 120 to move upward to ensure that the two sampling tubes 2 are closely abutted against each other while avoiding excessive pressure between the two sampling tubes 2. It is understandable that in a preferred embodiment, two connecting rods 260 can also be provided, and each connecting rod 260 is respectively connected to a clamping jaw 10.

[0031] Please refer again Figure 3 and Figure 4In a more specific embodiment, the clamping jaw 10 may further include a first rod 140 and a second rod 150, wherein the first rod 140 may be partially inserted into the compression groove 111, and one end of the first rod 140 may be connected to the clamping portion 120, and the other end may extend out of the body 110, and the extension direction may be 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 the elastic member 130 may be sleeved on the periphery of the second rod 150. That is, in this embodiment, the elastic member 130 is arranged on the body 110 and is located on the side opposite to the clamping portion 120, so that when the entire clamping jaw 10 is assembled, it has the characteristic of convenient assembly.

[0032] Also, please refer again to Figure 2 and Figure 6 In another embodiment, the clamping jaw 10 can be rotatably connected to the connecting rod 260, and the two ends of the connecting rod 260 are staggered in the vertical direction. Specifically, in this embodiment, the end of the connecting rod 260 connected to the clamping jaw 10 is arranged closer to the inside than the end of the connecting rod 260 away from the clamping jaw 10, so that when the connecting rod 260 drives the clamping jaw 10, the movement trajectory of the clamping jaw 10 is arc-shaped. That is to say, in this embodiment, when the clamping jaw 10 is driven by the connecting rod 260, the operations of clamping the sampling tube 2 and driving the sampling tube 2 to move downward are performed simultaneously, which is conducive to improving the working efficiency of the clamping jaw 10.

[0033] Please also refer to 2. Figure 6 and Figure 5, the first drive unit 20 can be connected to the body 110, specifically, the first drive unit 20 may include: a second substrate 210, a first motor 220, a first drive wheel 230, a lifting wheel 240, a transmission seat 250, a connecting rod 260 and a guide mechanism 270. Among them, the first motor 220 can be arranged on the second substrate 210, the first drive wheel 230 can be connected to the first motor 220, and the first motor 220 can be configured to drive the first drive wheel 230 to rotate. The embodiment of the present application does not limit the rotation mode of the first motor 220 driving the first drive wheel 230. In one embodiment, the output end of the first motor 220 can be directly engaged with the first drive wheel 230, so that the first motor 220 drives the first drive wheel 230 to rotate. In another embodiment, the output end of the first motor 220 and the first drive wheel 230 can be driven by a belt 4, so that the first motor 220 can also drive the first drive wheel 230 to rotate. Which specific matching mode is adopted can be set according to actual conditions. In addition, the embodiment of the present application does not limit the specific structure and form of the first driving wheel 230 , and can be specifically configured according to the matching mode between the first driving wheel 230 and the first motor 220 .

[0034] The lifting wheel 240 may be threadedly engaged in the first driving wheel 230 , so that the lifting wheel 240 can be driven by the first driving wheel 230 and move up and down relative to the first driving wheel 230 .

[0035] The transmission seat 250 can be arranged on the periphery of the lifting wheel 240 and is connected and fixed to the lifting wheel 240. The transmission seat 250 can serve as a carrier for other subsequent components. It can be understood that since the lifting wheel 240 needs to cooperate with the first driving wheel 230, and the lifting wheel 240 is located inside the first driving wheel 230, it is more difficult to transmit the power of the lifting wheel 240 moving up and down to other components. Therefore, in this embodiment, the transmission seat 250 can be used to transmit the power of the aforementioned up and down movement.

[0036] In a specific embodiment, the length of the lifting wheel 240 in the axial direction can be greater than the length of the first driving wheel 230 in the axial direction, so that one end of the lifting wheel 240 can extend out of the first driving wheel 230, and then the transmission seat 250 can be connected to the portion of the lifting wheel 240 extending out of the first driving wheel 230, and this portion is wrapped in the transmission seat 250, which can also avoid or reduce the possibility of the lifting wheel 240 being damaged by the external environment.

[0037] One end of the connecting rod 260 can be hinged to the transmission seat 250, and the other end of the connecting rod 260 can be connected to the clamping jaw 10. The connecting rod 260 can be used to receive the aforementioned power for moving up and down, and because the connecting rod 260 is hinged to the transmission seat 250, the connecting rod 260 can transmit the power for moving up and down to the subsequent elements, and can also transmit the power for moving left and right to the subsequent elements, thereby making the subsequent elements more flexible. Specifically, in this embodiment, the connecting rod 260 can be configured to drive the clamping jaw 10 to open and close to clamp or release the sampling tube 2.

[0038] The guide mechanism 270 may be connected to the clamping jaw 10, and the guide mechanism 270 may be used to guide the clamping jaw 10 to move along a specified path to achieve the opening and closing of the clamping jaw 10. The embodiment of the present application does not limit the specific form of the guide mechanism 270. For example, in one embodiment, the guide mechanism 270 may be in the form of a waist-shaped hole to guide the clamping jaw 10 to move inward while moving downward.

[0039] The second drive unit 30 can also be connected to the clamp 10, specifically, the second drive unit 30 can include: a second motor 310 and a second drive wheel 320, wherein the second motor 310 can be arranged on the second substrate 210, the second drive wheel 320 is transmission-connected with the second motor 310, and the second drive wheel 320 can be configured to drive the clamp 10 to rotate to rotate the sampling tube 2. Specifically, when the two sampling tubes 2 are docked, the second drive wheel 320 can drive one of the sampling tubes 2 to rotate, based on the elastic pressure applied by the elastic member 130, the threaded connection between the two sampling tubes 2 can be realized, and the two sampling tubes 2 can be tightened. In this embodiment, the rotation force of the second drive wheel 320 is controllable, so that the tightening force of the two sampling tubes 2 can be controlled during the tightening process, and it is ensured that the two sampling tubes 2 can be tightened in place, avoiding the safety hazard caused by the insufficient tightening degree of the sampling tubes 2 when the sampling tubes 2 are manually docked.

[0040] It should be noted that the embodiment of the present application does 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 refer to the transmission connection method between the first motor 220 and the first drive wheel 230, which will not be repeated here.

[0041] For further information, please also refer to Figure 6 and Figure 7In this embodiment, the second driving wheel 320 may be provided with an escape channel 321, and the connecting rod 260 may pass through the escape channel 321, so that the size of the entire grasping mechanism of the sampling tube 2 can be reduced. At the same time, the escape channel 321 can also protect and limit the connecting rod 260, thereby ensuring that the connecting rod 260 can accurately move up and down in the escape channel 321, thereby ensuring that the clamping jaws 10 can accurately open and close.

[0042] Please also refer to Figure 3 and Figure 5 In this embodiment, the guide mechanism 270 may include: a shell 271 and a guide member 272. The shell 271 may be connected to the end surface of the second driving wheel 320, and a guide groove 2711 may be provided on the shell 271. The provision of the shell 271 can avoid or reduce the possibility of damage to the waist-shaped hole. The guide member 272 may be connected to the clamping jaw 10 and embedded in the guide groove 2711, so that the clamping jaw 10 can move along the guide groove 2711, thereby ensuring and realizing the opening and closing function of the clamping jaw 10. The embodiment of the present application also does not limit the specific form of the guide groove 2711. For example, in one embodiment, the guide groove 2711 may also be provided in the form of a waist-shaped hole.

[0043] For example, in another embodiment, the guide groove 2711 can be set to a circular hole structure, the guide member 272 can be set to a disc structure, and the guide member 272 can be eccentrically set in the guide groove 2711. The guide member 272 can rotate in the guide groove 2711 to drive the clamping jaw 10 to move. In addition, when the guide member 272 rotates in the guide groove 2711, since the guide member 272 is eccentrically set, the clamping jaw 10 can be opened and closed. It should be noted that the embodiment of the present application does not limit the depth of the guide groove 2711 and the thickness of the guide member 272, and can be set according to actual conditions.

[0044] For details, please refer to Figure 5 The guide groove 2711 can be set to be multiple, and the number of guide members 272 can be set to be consistent with 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 grooves 2711 is damaged or fails, the guide mechanism 270 can still guide the clamp 10.

[0045] In this embodiment, four guide grooves 2711 are used as an example for explanation. The four guide grooves 2711 can be set to a parallelogram structure with their connecting lines connected end to end, and the connecting rod 260 can be hinged to the clamp 10, so that the connecting rod 260 can transmit force to the clamp 10 and drive the clamp 10 to move downward at an angle to clamp the sampling tube 2. The guide member 272 can drive the clamp 10 to move horizontally relative to the guide groove 2711 to avoid the movement trajectory of the part of the clamp 10 close to the connecting rod 260 being longer than the part of the clamp 10 away from the connecting rod 260, thereby facilitating the clamp 10 to clamp the sampling tube 2 and improving the clamping stability of the clamp 10.

[0046] Based on the above, since the clamp 10 includes an elastic member 130, among the two longitudinally adjacent sampling tubes 2, the clamp 10 clamps the upper sampling tube 2 to threadably connect it with the lower sampling tube 2. Since the clamping portion 120 of the clamp 10 can be subjected to the pre-tightening force applied by the elastic member 130, the thread of the upper sampling tube 2 can be kept in a state of abutting against the thread of the lower sampling tube 2. When the clamp 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 match to form a thread pair, and then the two sampling tubes 2 can be rotated and tightened. Specifically, the second driving wheel 320 drives the guide mechanism 270 to rotate. Since the guide mechanism 270 is connected to the clamp 10, the second driving wheel 320 can drive the clamp 10 to rotate, so that the clamp 10 can clamp the sampling tube 2 and drive the sampling tube 2 to move and rotate. The rotation force of the second driving wheel 320 is controllable, so that the tightening force of the sampling tube 2 during the threaded connection is controllable and can ensure that the sampling tube 2 is tightened in place.

[0047] Please also see Figure 2 , Figure 8 and Fig. 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, and 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.

[0048] Specifically, in this embodiment, the positioning unit 50 may also include a first substrate 530, the first positioning mechanism 510 may be arranged on the upper side of the first substrate 530, the second positioning mechanism 520 may be arranged on the lower side of the first substrate 530, and the first substrate 530 may have a positioning hole running through along the first direction (the Y direction in the figure), and the positioning hole may be used for the sampling tube 2 to pass through, and the positioning hole may play a role in pre-positioning the sampling tube 2. Preferably, the first direction may be a vertical direction, that is, the first direction may be perpendicular to the surface of the first substrate 530. The embodiment of the present application does not limit the specific structure and form of the positioning hole. In a preferred embodiment, the positioning hole may match the structure of the sampling tube 2.

[0049] Please also see Figure 2 and Figure 8 The first positioning mechanism 510 can be used to position and clamp the upper sampling tube 2, and can be used to position the second end 22 of the upper sampling tube 2 to prevent the upper sampling tube 2 from swinging during the docking process. In this embodiment, the first positioning mechanism 510 can include a driving component 511 and a clamping component 512, and 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.

[0050] In this embodiment, there may be multiple clamping components 512, for example, two, three or four, etc., without any specific limitation, and the clamping components 512 may be evenly arranged around the positioning hole. Specifically, for ease of description, the following description will take the example of two clamping components 512 being arranged.

[0051] The two clamping assemblies 512 are arranged on opposite sides of the positioning hole in the radial direction, which is conducive to improving the positioning and clamping effect of the clamping assemblies 512 on the sampling tube 2. The driving assembly 511 can be used to drive the two clamping assemblies 512 to move toward or away from each other. Specifically, when the two clamping assemblies 512 move toward each other, the clamping assemblies 512 can be used to position and clamp the sampling tube 2. When the two clamping assemblies 512 move away from each other, the clamping assemblies 512 can be used to release the sampling tube 2.

[0052] Please continue reading Figure 8 In a more specific embodiment, the driving component 511 can be one of a reciprocating screw, a forward and reverse screw, or a left and right screw, and the two clamping components 512 can be respectively arranged at both ends of the driving component 511. Taking the driving component 511 as a reciprocating screw as an example, this screw has two thread grooves with the same pitch but opposite rotation directions. Through the rotation of the screw, the two clamping components 512 can be driven to reciprocate in opposite directions along the axial direction of the screw, so that the two clamping components 512 can position and clamp the sampling tube 2 or release the sampling tube 2.

[0053] In addition, the embodiment of the present application does not limit the specific form and structure of the clamping assembly 512. For example, in some embodiments, the clamping assembly 512 can be set as a clamping block, and the sample tube 2 is positioned and clamped by abutting and squeezing. For example, in the present embodiment, the clamping assembly 512 may include a rotating wheel 5121. When the clamping assembly 512 positions the sample tube 2, the sample tube 2 abuts between at least two rotating wheels 5121. Specifically, taking the sample tube 2 abutting against three rotating wheels 5121 as an example, one side of the sample tube 2 abuts against a rotating wheel 5121, and the other side abuts against two rotating wheels 5121. The sample tube 2 can be firmly positioned and clamped by using a triangular stable structure. Preferably, both sides of the sample tube 2 can abut against two rotating wheels 5121, which can facilitate the fixation of the sample tube 2.

[0054] 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.

[0055] Furthermore, in this embodiment, the first positioning mechanism 510 may also include a driver 513, and the driver 513 may be connected to the rotating wheel 5121 and used to drive the driver 513 to rotate. The embodiment of the present application also does not limit the specific structure and form of the driver 513. For details, please refer to the relevant description of the drive component 511, which will not be repeated here.

[0056] That is to say, in the present embodiment, the rotating wheel 5121 can be a driving wheel. When the rotating wheel 5121 abuts against the outer surface of the sampling tube 2, the rotating wheel 5121 can rotate under the drive of the driver 513, thereby driving 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 rotation direction is not limited here, that is to say, when the upper sampling tube 2 rotates, it can be threadedly connected with the lower sampling tube 2, or it can be separated from the lower sampling tube 2, which is not limited here. Therefore, in the present 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 are threadedly connected or disassembled, thereby realizing the rapid completion of the splicing operation after the sampling tubes 2 are docked or the rapid removal operation of the two sampling tubes 2. As mentioned above, in this embodiment, the driver 513 can cooperate with the first motor 220 to jointly 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 driver 513 and the first motor 220 cooperate with each other to promote the overall movement of the sampling tube 2 and avoid damage to the sampling tube 2 due to excessive torque received by the end of the sampling tube 2.

[0057] 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 arranged near the end of the sampling tube 2, which can improve the docking effect and docking accuracy of the sampling tube 2, and at the same time can save more effort and reduce the driving burden of the driver 513.

[0058] In addition, in some embodiments, the first positioning mechanism 510 may also include a limiter 514, the limiter 514 may be arranged on the base 521, and the clamping assembly 512 may be movably arranged on the limiter 514. In this way, it can be ensured that the moving path of the clamping assembly 512 is more accurate, and it can be ensured that the positioning and clamping of the sampling tube 2 by the clamping assembly 512 is more accurate. It should be noted that the embodiment of the present application does not limit the specific structure of the limiter 514. For example, in one embodiment, the limiter 514 may be a guide rail, and the clamping assembly 512 may be movably arranged on the guide rail. In this way, it can not only ensure that the moving path of the clamping assembly 512 is more accurate, but also improve the structural stability of the clamping assembly 512 relative to the base 521, and avoid the situation where the sampling tube 2 hits the clamping assembly 512 during the swinging process, causing the clamping assembly 512 to be displaced.

[0059] The embodiment of the present 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 set in the same manner as the first positioning mechanism 510. For details, please refer to the setting method of the first positioning mechanism 510, which will not be repeated here.

[0060] Please also see Figure 2 and Fig. 9 In this embodiment, the second positioning mechanism 520 may include a base 521 and at least one positioning wheel group. The base 521 may be connected to the first substrate 530. The positioning wheel group may include two positioning wheels 5221 arranged on the base 521. The two positioning wheels 5221 may be 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.

[0061] Preferably, the contact surface between the positioning wheel 5221 and the sampling tube 2 can be a concave surface. 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, which can not only improve the effect of positioning and clamping the sampling tube 2, but also reduce 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.

[0062] The embodiment of the present application also does not limit the specific structure of the base 521, and can be specifically set according to actual conditions. In this embodiment, the base 521 may include a first structural portion 5211 and a second structural portion 5212, wherein the first structural portion 5211 may be connected to the first substrate 530, and extend along the first direction, and be arranged away from the first substrate 530. Specifically, in this embodiment, the first structural portion 5211 may be set to a structure similar to a hanging basket. The second structural portion 5212 may be set to a sheet structure with a hollowed-out middle portion, and the second structural portion 5212 may be connected to both sides of the first structural portion 5211. The positioning wheel 5221 may be rotatably connected between the two second structural portions 5212.

[0063] Furthermore, in the present embodiment, a plurality of positioning wheel groups may be provided, and the plurality of positioning wheel groups may be arranged in an array along the first direction, so as to further enhance the positioning and clamping effect of the second positioning mechanism 520 on the sampling tube 2 .

[0064] 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 may be used to selectively grasp or release the sampling tube 2, which may further improve the positioning and clamping capability of the second positioning mechanism 520 on the sampling tube 2. In a more specific embodiment, when two positioning wheel groups are provided, the fixing claw 523 may be provided between the two positioning wheel groups.

[0065] In summary, the assembly device for the sampling tube 2 provided in the embodiment of the present application drives the clamp 10 to clamp or release the sampling tube 2 and drive the clamp 10 to rotate by setting the first driving unit 20 and the second driving unit 30, and drives the clamp 10 to rise or fall by the lifting mechanism 40, and fixes the sampling tubes 2 located above and below respectively by the positioning unit 50. After the positioning unit 50 fixes the two sampling tubes 2, the first driving unit 20 can clamp the sampling tube 2 located above, and move the sampling tube 2 located above to a suitable height by the lifting mechanism 40, and then drive the first sampling tube 2 to rotate by the second driving unit 30 to achieve the docking and connection operation of the two sampling tubes 2. Similarly, the disassembly operation of the two sampling tubes 2 can be achieved by reversing the aforementioned process. In the embodiment of the present application, the cooperation of the first drive unit 20, the second drive unit 30, the lifting mechanism 40 and the positioning unit 50 with the clamp 10 not only reduces the labor cost, but also has simple operation and a high degree of automation, eliminating the safety hazards that exist when manually docking or disassembling the sampling tube 2.

[0066] Please also see Figure 2 and Fig.10 The embodiment of the present application also provides a grain storage bin food detection device 3, which can include any of the above-mentioned sampling tube 2 assembly devices, and can also include a vacuum pipe 5, wherein the vacuum pipe 5 can be connected to the second base plate 210, and the vacuum pipe 5 can be passed through the lifting wheel 240 and the transmission seat 250. It can be understood that the vacuum pipe 5 is a vacuum environment, and the vacuum pipe 5 can be selectively sealed and docked with the sampling tube 2, and the grain sample sucked by the sampling tube 2 can pass through the vacuum pipe 5 and then be sent to the subsequent detection mechanism.

[0067] In summary, since the grain storage bin grain detection device 3 provided in the embodiment of the present application adopts the above-mentioned sampling tube 2 assembly device, the grain storage bin grain detection device 3 provided in the embodiment of the present application can also reduce labor costs, and is simple to operate, has a high degree of automation, and eliminates the safety hazards that exist when manually docking or disassembling the sampling tube 2.

[0068] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0069] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that 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.

[0070] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sampling tube disassembly and assembly device, characterized in that: include: Gripper; A first driving unit and a second driving unit, wherein the first driving unit and the second driving unit are respectively connected to the clamping jaws, the first driving unit is configured to drive the clamping jaws to clamp or release the sampling tube, and the second driving unit is configured to drive the clamping jaws to rotate; A lifting mechanism, the lifting mechanism is connected to the clamping claw, and the lifting mechanism is used to drive the clamping claw to rise or fall; as well as, The positioning unit includes a first positioning mechanism and a second positioning mechanism, wherein the first positioning mechanism is located above the second positioning mechanism, and 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.

2. The sampling tube assembly device according to claim 1, characterized in that: The positioning unit also includes a first substrate, the first positioning mechanism is arranged on the upper side of the first substrate, the second positioning mechanism is arranged on the lower side of the first substrate, the first substrate has a positioning hole penetrating along a first direction, and the positioning hole is used for the sampling tube to pass through.

3. The sampling tube assembly device according to claim 2, characterized in that: The first positioning mechanism includes a driving component and a clamping component. The two clamping components are movably arranged 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 toward or away from each other to position and clamp the sampling tube or release the sampling tube.

4. The sampling tube assembly device according to claim 3, characterized in that: The clamping assembly comprises: a rotating wheel, 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 wheel 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.

5. The sampling tube assembly device according to claim 2, characterized in that: The second positioning mechanism includes: a base and at least one positioning wheel group, the base is connected to the first substrate, the positioning wheel group includes two positioning wheels arranged on the base, the two positioning wheels are arranged in parallel and define a positioning gap therebetween, 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.

6. The sampling tube assembly device according to claim 1, characterized in that: The clamp includes: a body, a clamping portion and an elastic member, the first drive unit is connected to the body and the second drive unit is connected to the body, the clamping portion is connected to the elastic member and is slidably connected to the body, the body is provided with a compression groove, and the elastic member is arranged in the compression groove.

7. The sampling tube assembly device according to claim 6, characterized in that: The clamp also includes: a first rod and a second rod, the first rod is arranged in the compression groove, one end of the first rod is connected to the clamping portion, 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 the second rod is arranged perpendicular to the first rod, the other end of the second rod is connected to the body, and the elastic member is sleeved on the outer periphery of the second rod.

8. The sampling tube assembly device according to claim 1, characterized in that: The first driving unit comprises: a second substrate; a first motor, wherein the first motor is disposed on the second substrate; a first driving wheel, wherein the first driving wheel is connected to the first motor, and the first motor is configured to drive the first driving wheel to rotate; A lifting wheel, wherein the lifting wheel is threadably engaged with the first driving wheel, and the first driving wheel is configured to drive the lifting wheel to move up and down; A transmission seat, the transmission seat is arranged at the periphery of the lifting wheel and is connected and fixed to the lifting wheel; A connecting rod, one end of which is hinged to the transmission seat, the clamping claw is connected to the other end of the connecting rod, and the connecting rod is configured to drive the clamping claw to open and close to clamp or release the sampling tube; and A guide mechanism is connected to the clamping jaw, and the guide mechanism is used to guide the clamping jaw to move along a specified path to achieve the opening and closing of the clamping jaw.

9. The sampling tube assembly device according to claim 8, characterized in that: The second driving unit comprises: a second motor, the second motor being disposed on the second substrate; and The second driving wheel is connected with the guide mechanism and is in driving connection with the second motor. The second driving wheel is configured to drive the clamping jaw to rotate so as to rotate the sampling tube. The second driving wheel is penetrated by an avoidance channel, and the connecting rod passes through the avoidance channel.

10. A grain storage silo grain detection device, characterized in that: It comprises a sampling tube assembly device as described in any one of claims 1-9.

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