Sample sampling pipe grabbing mechanism and grain storage bin grain detection device

Abstract

The invention discloses a sampling pipe grabbing mechanism and a grain storage bin grain detection device. The sampling pipe grabbing mechanism comprises a base plate, a first motor, a second motor, a first rotating wheel, a lifting wheel, a transmission seat, a connecting rod, a clamping jaw, a guide mechanism and a second rotating wheel. A first motor and a second motor are arranged to drive a first rotating wheel and a second rotating wheel respectively, the first rotating wheel drives a lifting wheel to move up and down, then the lifting wheel drives a transmission seat to move up and down, then a connecting rod is driven to move up and down, finally a clamping jaw is driven to open and close to clamp a sampling pipe, and the sampling pipe can move up and down along with the clamping jaw. The second rotating wheel drives the guide mechanism to rotate, and due to the fact that the guide mechanism is connected with the clamping jaw, the second rotating wheel can drive the clamping jaw to rotate. The sampling pipe grabbing mechanism is high in automation degree, easy and convenient to operate and controllable in tightening force, the labor cost is reduced, and potential safety hazards caused by too loose connection of sampling pipes during manual butt joint are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of grain detection, and in particular to a sampling tube grabbing mechanism 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 connecting and combining multiple sampling tubes. For example, in the patent document with publication number CN201555727U, multiple sampling tubes are connected together by threaded connection.

[0004] However, in the related art, the docking of multiple sampling tubes is usually achieved by manual operation, which has the problems of complex operation, poor safety and low automation. Summary of the invention

[0005] The invention discloses a sampling tube grabbing mechanism 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, the embodiment of the present application provides a sampling tube grasping mechanism for clamping and rotating the sampling tube, and the sampling tube grasping mechanism includes: a base plate, a first motor and a second motor, a first rotating wheel, a lifting wheel, a transmission seat, a connecting rod, a clamping claw, a guide mechanism and a second rotating wheel. The first motor and the second motor are arranged on the base plate. The first rotating wheel is connected to the first motor, and the first motor is configured to drive the first rotating wheel to rotate. The lifting wheel is threadedly engaged in the first rotating wheel, and the first rotating wheel is configured to drive the lifting wheel to move up and down. The transmission seat is arranged on the periphery of the lifting wheel and is connected and fixed to the lifting wheel. One end of the connecting rod 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 the sampling tube. The guiding mechanism is connected to the clamping claw, and the guiding mechanism is used to guide the clamping claw to move along a specified path to realize the opening and closing of the clamping claw. The second rotating wheel is connected to the guide mechanism and is in driving connection with the second motor. The second rotating wheel is configured to drive the clamping jaw to rotate so as to rotate the sampling tube.

[0007] In one embodiment, the second rotating wheel is provided with an avoidance channel, and the connecting rod passes through the avoidance channel.

[0008] In one embodiment, the guide mechanism includes: a shell and a guide member, the shell is connected to the end surface of the second rotating wheel, a guide groove is provided on the shell, and the guide member is connected to the clamp and embedded in the guide groove.

[0009] In one embodiment, the guide groove is a circular hole-shaped structure, the guide member is a disc-shaped structure, and the guide member is eccentrically disposed in the guide groove.

[0010] In one embodiment, the clamp includes: a body, a clamping portion and an elastic member, 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.

[0011] 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.

[0012] In one embodiment, the clamping jaw is rotatably connected to the connecting rod.

[0013] In one embodiment, the first motor is engaged with the first rotating wheel; And / or, the second motor is connected to the second rotating wheel via a belt drive.

[0014] On the other hand, an embodiment of the present application also provides a grain storage bin grain detection device, including the sampling tube grabbing mechanism as described above.

[0015] In one embodiment, the grain storage bin food detection device further includes: a vacuum pipe, the vacuum pipe is connected to the base plate, the vacuum pipe is passed through the interior of the lifting wheel and the transmission seat, and is selectively sealed and docked with the sampling tube.

[0016] The technical solution adopted by the present invention can achieve the following beneficial effects: The sampling tube grasping mechanism provided in the embodiment of the present application is provided with a first motor and a second motor to drive the first rotating wheel and the second rotating wheel respectively, wherein the first rotating wheel drives the lifting wheel to move up and down, and then the lifting wheel drives the transmission seat to move up and down, and then drives the connecting rod to move up and down, and finally drives the clamp to open and close to clamp the sampling tube, and enables the sampling tube to move up and down accordingly. The second rotating wheel drives the guide mechanism to rotate, and since the guide mechanism is connected to the clamp, the second rotating wheel can drive the clamp to rotate, and then the clamp can clamp the sampling tube and drive the sampling tube to move and rotate. In the embodiment of the present application, the operation of driving the sampling tube to move and rotate is realized by the sampling tube grasping mechanism, and then the sampling tube grasping mechanism can be used to complete the docking of multiple sampling tubes, which 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 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 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 A structural schematic diagram of a sampling tube grabbing mechanism in one embodiment of the present application is shown.

[0019] Figure 2 A cross-sectional view of a sampling tube grabbing mechanism in one embodiment of the present application is shown.

[0020] Figure 3A schematic diagram showing the cooperation between a clamping claw and a connecting rod in a sampling tube grasping mechanism in one embodiment of the present application is shown.

[0021] Figure 4 A schematic structural diagram of a clamping claw in a sampling tube grasping mechanism in one embodiment of the present application is shown.

[0022] Figure 5 A cross-sectional view of a clamping claw in a sampling tube grasping mechanism in one embodiment of the present application is shown.

[0023] Figure 6 A structural schematic diagram of a sampling tube grasping mechanism from another perspective in one embodiment of the present application is shown.

[0024] Figure 7 A cross-sectional view from another perspective of a sampling tube grasping mechanism in one embodiment of the present application is shown.

[0025] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0026] Fig. 9 A structural schematic diagram of a grain detection device for a grain storage bin in one embodiment of the present application is shown.

[0027] In the figure: 1. grain detection device for grain storage bin; 10. sampling tube grasping mechanism; 110. first motor; 120. second motor; 130. first rotating wheel; 140. lifting wheel; 150. transmission seat; 160. connecting rod; 170. clamping claw; 171. main body; 171a. compression groove; 172. clamping part; 173. elastic member; 174. first rod member; 175. second rod member; 180. guiding mechanism; 181. shell; 181a. guide groove; 182. guide member; 190. second rotating wheel; 191. avoidance channel; 20. vacuum pipe; 2. sampling tube; 3. belt; 4. substrate. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] The inventive concept of the present application is described here: Grain storage silo grain detection devices are key equipment to ensure safe grain storage and management. These devices use modern electronic technologies, such as computers, sensors, and communication technologies, to collect and process various physical parameters in the silo, thereby achieving real-time monitoring and precise management of grain storage status.

[0031] When grain is stored in a granary, its quality is 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 the granary in the prior art can insert a sampling tube into the granary at different depths and positions to take samples, so as to obtain more representative samples, thereby more accurately reflecting the quality of the grain in the entire granary.

[0032] However, due to the different depths of granaries, when encountering a deeper granary or when sampling and testing grains at different depths is required, the length of the sampling tube needs to be adaptively extended. When encountering a shallow granary, it is difficult to extract a representative sample if the sampling tube is too long.

[0033] In the related art, there is a sampling device formed by connecting and assembling multiple sampling tubes. For example, in the patent document with publication number CN201555727U, multiple sampling tubes are connected and joined together by threaded connection.

[0034] However, in the related art, the docking of multiple sampling tubes is usually achieved by manual operation, which has the problems of complex operation, poor safety and low automation.

[0035] Based on this, the inventor provides a sampling tube grabbing mechanism, and enables the sampling tube grabbing mechanism to simultaneously have the function of moving the sampling tube and rotating the sampling tube, thereby replacing manual labor to achieve automatic docking of the sampling tube, simplifying the docking operation process of the sampling tube, and avoiding the safety hazards of manual docking of the sampling tube.

[0036] The following is combined with Figures 1 to 9 , the sampling tube grasping mechanism 10 and the grain storage bin grain detection device 1 provided in the present application are described in detail through specific embodiments and their application scenarios.

[0037] Please also see Figure 1 and Figure 2 In this embodiment, the sampling tube grasping mechanism 10 may include: a substrate 4, a first motor 110, a second motor 120, a first rotating wheel 130, a lifting wheel 140, a transmission seat 150, a connecting rod 160, a clamping claw 170, a guide mechanism 180 and a second rotating wheel 190. The substrate 4 may be used as a connection basis for other components. The embodiment of the present application does not limit the specific structure and shape of the substrate 4. For example, in one embodiment, the substrate 4 may be set to a structure with a flat surface, so that it is convenient to install other components connected to the substrate 4.

[0038] In this embodiment, the first motor 110 and the second motor 120 can be arranged on the substrate 4, and the first motor 110 and the second motor 120 can be used to control the rotation of the first rotating wheel 130 and the second rotating wheel 190, respectively. The embodiment of the present application does not limit the rotation mode of the first motor 110 to control the first rotating wheel 130, nor does it limit the rotation mode of the second motor 120 to control the second rotating wheel 190. The cooperation mode of the first motor 110 and the first rotating wheel 130 is taken as an example. In one embodiment, the output end of the first motor 110 can be directly engaged with the first rotating wheel 130, so that the first motor 110 drives the first rotating wheel 130 to rotate. In another embodiment, the output end of the first motor 110 and the first rotating wheel 130 can be driven by the belt 3, so that the first motor 110 can also drive the first rotating wheel 130 to rotate. Which specific cooperation mode is adopted can be set according to actual conditions. The cooperation mode of the second motor 120 and the second rotating wheel 190 can refer to the cooperation mode of the first motor 110 and the first rotating wheel 130, which will not be repeated here.

[0039] In addition, the embodiments of the present application do not limit the specific structure and form of the first rotating wheel 130 and the second rotating wheel 190 , which can be specifically configured according to the cooperation mode between the first rotating wheel 130 and the first motor 110 and the cooperation mode between the second rotating wheel 190 and the second motor 120 .

[0040] In this embodiment, the lifting wheel 140 may be threadedly engaged in the first rotating wheel 130 , so that the lifting wheel 140 can be driven by the first rotating wheel 130 and move up and down relative to the first rotating wheel 130 .

[0041] The transmission seat 150 can be arranged on the periphery of the lifting wheel 140 and is connected and fixed to the lifting wheel 140. The transmission seat 150 can serve as a carrier for other subsequent components. It can be understood that since the lifting wheel 140 needs to cooperate with the first rotating wheel 130, and the lifting wheel 140 is located inside the first rotating wheel 130, it is difficult to transmit the power of the lifting wheel 140 moving up and down to other components. Therefore, in this embodiment, the transmission seat 150 can be used to transmit the power of the aforementioned up and down movement.

[0042] In a specific embodiment, the length of the lifting wheel 140 in the axial direction can be greater than the length of the first rotating wheel 130 in the axial direction, so that one end of the lifting wheel 140 can extend out of the first rotating wheel 130, and then the transmission seat 150 can be connected to the part of the lifting wheel 140 extending out of the first rotating wheel 130, and this part is wrapped in the transmission seat 150, so that the possibility of the lifting wheel 140 being damaged by the external environment can be avoided or reduced.

[0043] One end of the connecting rod 160 can be hinged to the transmission seat 150, and the connecting rod 160 can be used to receive the aforementioned power for up and down movement. Since the connecting rod 160 is hinged to the transmission seat 150, the connecting rod 160 can transmit the power for up and down movement to the subsequent components, and can also transmit the power for left and right movement to the subsequent components, which is beneficial for making the subsequent components more flexible.

[0044] Please also see Figure 1 and Figure 3 , the clamping jaw 170 can be connected to the other end of the connecting rod 160 and is used to receive the power transmitted from the connecting rod 160. In this embodiment, the clamping jaw 170 can be opened and closed under the drive of the connecting rod 160 to clamp the sampling tube 2 or release the sampling tube 2. In this embodiment, two clamping jaws 170 can be provided, and the two clamping jaws 170 can be arranged oppositely, the two clamping jaws 170 can be driven by the connecting rod 160 to approach each other to clamp the sampling tube 2, and the two clamping jaws 170 can also be driven by the connecting rod 160 to move away from each other to release the sampling tube 2.

[0045] The present application embodiment does not limit the specific structure and form of the clamping jaw 170. Please also refer to Figure 1 , Figure 4 and Figure 5For example, in one embodiment, the clamp 170 may include: a main body 171, a clamping portion 172 and an elastic member 173. The clamping portion 172 may be connected to the elastic member 173 and slidably connected to the main body 171. In a preferred embodiment, the surface of the clamping portion 172 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 172 is larger during the process of clamping the sampling tube 2, thereby facilitating the clamp 170 to clamp the sampling tube 2 more stably.

[0046] The main body 171 may be provided with a compression groove 171a, and the elastic member 173 may be arranged in the compression groove 171a. The compression groove 171a may provide a movable space for the main body 171, so that the elastic member 173 drives the main body 171 to move up and down. That is to say, in the present embodiment, the clamping portion 172 may move relative to the main body 171, and the elastic force of the elastic member 173 is used as the power to drive the clamping portion 172 to move. Specifically, after the clamping jaw 170 clamps a sampling tube 2, the first connecting rod 160 continues to drive the clamping jaw 170 to move downward, and the docking with another sampling tube 2 is completed, thereby preparing 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 173 can be used as a buffer. When the two sampling tubes 2 are abutted and have a certain pressure, the elastic member 173 can drive the clamping part 172 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 160 can also be provided, and each connecting rod 160 is respectively connected to a clamping jaw 170.

[0047] Please refer again Figure 1 , Figure 4 and Figure 5In a more specific embodiment, the clamping jaw 170 may further include a first rod 174 and a second rod 175, wherein the first rod 174 may be partially inserted into the compression groove 171a, and one end of the first rod 174 may be connected to the clamping portion 172, and the other end may extend out of the body 171, and the extension direction may be a horizontal direction. The second rod 175 may be connected to the other end of the first rod 174, and the second rod 175 may be arranged perpendicular to the first rod 174, that is, the second rod 175 may be arranged vertically. The other end of the second rod 175 may be connected to the body 171, and the elastic member 173 may be sleeved on the periphery of the second rod 175. That is, in this embodiment, the elastic member 173 is arranged on the body 171 and is located on the side opposite to the clamping portion 172, so that when the entire clamping jaw 170 is assembled, it has the characteristic of convenient assembly.

[0048] Also, please refer again to Figure 1-Figure 3 In another embodiment, the clamping jaw 170 can be rotatably connected to the connecting rod 160, and the two ends of the connecting rod 160 are staggered in the vertical direction. Specifically, in this embodiment, the end of the connecting rod 160 connected to the clamping jaw 170 is arranged closer to the inside than the end of the connecting rod 160 away from the clamping jaw 170, so that when the connecting rod 160 drives the clamping jaw 170, the movement trajectory of the clamping jaw 170 is an arc. That is to say, in this embodiment, when the clamping jaw 170 is driven by the connecting rod 160, 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 170.

[0049] Please also see Figure 3 and Figure 6 The guide mechanism 180 can be connected to the clamping jaw 170 , and the guide mechanism 180 can be used to guide the clamping jaw 170 to move along a specified path to achieve the opening and closing of the clamping jaw 170 .

[0050] The second rotating wheel 190 can be connected to the guide mechanism 180 and is in transmission connection with the second motor 120. The second rotating wheel 190 can be configured to drive the clamping claw 170 to rotate, and then when the clamping sample tube 2 is clamped, the sample tube 2 can be driven to rotate. Specifically, after the two sample tubes 2 are docked, the second rotating wheel 190 can drive one of the sample tubes 2 to rotate. Based on the elastic pressure applied by the elastic member 173, the threaded connection between the two sample tubes 2 can be achieved, and the two sample tubes 2 can be tightened. In this embodiment, the rotation force of the second rotating wheel 190 is controllable, and then the tightening force of the two sample tubes 2 can be controlled during the tightening process, and it is ensured that the two sample tubes 2 can be tightened in place, avoiding the safety hazard caused by the insufficient tightening degree of the sample tubes 2 when the sample tubes 2 are manually docked.

[0051] Please also see Figure 7 and Figure 8 In one embodiment, the second rotating wheel 190 may be provided with an escape channel 191, and the connecting rod 160 may pass through the escape channel 191, which may help reduce the size of the entire sampling tube grasping mechanism 10. At the same time, the escape channel 191 may also protect and limit the connecting rod 160, thereby ensuring that the connecting rod 160 can accurately move up and down in the escape channel 191, thereby ensuring that the clamping jaws 170 can accurately open and close.

[0052] Please refer again Figure 1 and Figure 6 In addition, the embodiment of the present application does not limit the specific form of the guide mechanism 180. For example, in one embodiment, the guide mechanism 180 may be in the form of a waist-shaped hole to guide the clamping jaw 170 to move inward while moving downward. For another example, in this embodiment, the guide mechanism 180 may include: a housing 181 and a guide member 182.

[0053] The housing 181 may be connected to the end surface of the second rotating wheel 190, and a guide groove 181a may be provided on the housing 181. The housing 181 may be provided to avoid or reduce the possibility of damage to the waist-shaped hole. The guide member 182 may be connected to the clamping jaw 170 and embedded in the guide groove 181a, so that the clamping jaw 170 may move along the guide of the guide groove 181a, thereby ensuring and realizing the opening and closing function of the clamping jaw 170. The embodiment of the present application also does not limit the specific form of the guide groove 181a. For example, in one embodiment, the guide groove 181a may also be provided in the form of a waist-shaped hole.

[0054] For another example, in another embodiment, the guide groove 181a can be set to a circular hole structure, the guide member 182 can be set to a disc structure, and the guide member 182 can be eccentrically set in the guide groove 181a. The guide member 182 can rotate in the guide groove 181a to drive the clamping jaw 170 to move. In addition, when the guide member 182 rotates in the guide groove 181a, since the guide member 182 is eccentrically set, the clamping jaw 170 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 181a and the thickness of the guide member 182, and can be set according to actual conditions.

[0055] For details, please refer to Figure 3 and Figure 6The guide groove 181a can be set to be multiple, and the number of guide members 182 can be set to be consistent with the number of guide grooves 181a. This can improve the fault tolerance of the entire guide mechanism 180. When one pair of guide members 182 and guide grooves 181a is damaged or fails, the guide mechanism 180 can still guide the clamp 170.

[0056] In this embodiment, four guide grooves 181a are used as an example for explanation. The four guide grooves 181a can be set to a parallelogram structure with their connecting lines connected end to end, and the connecting rod 160 can be hinged to the clamping jaw 170, so that the connecting rod 160 can transmit force to the clamping jaw 170 and drive the clamping jaw 170 to move downward at an angle to clamp the sampling tube 2. The guide member 182 can drive the clamping jaw to move horizontally relative to the guide groove 181a to avoid the movement trajectory of the part of the clamping jaw 170 close to the connecting rod 160 being longer than the part of the clamping jaw 170 away from the connecting rod 160, thereby facilitating the clamping of the sampling tube 2 by the clamping jaw 170 and improving the clamping stability of the clamping jaw 170.

[0057] In summary, the sampling tube grasping mechanism 10 provided in the embodiment of the present application is provided with a first motor 110 and a second motor 120 to drive the first rotating wheel 130 and the second rotating wheel 190 respectively, wherein the first rotating wheel 130 drives the lifting wheel 140 to move up and down, and then the lifting wheel 140 drives the transmission seat 150 to move up and down, and then drives the connecting rod 160 to move up and down, and finally drives the clamping jaw 170 to open and close to clamp the sampling tube 2. Furthermore, since the clamping jaw 170 includes an elastic member 173, in two longitudinally adjacent sampling tubes 2, the clamping jaw 170 clamps The upper sampling tube 2 is threadably connected to the lower sampling tube 2. Since the clamping portion 172 of the clamping jaw 170 can be subjected to the pre-tightening force applied by the elastic member 173, the thread of the upper sampling tube 2 can be kept in contact with the thread of the lower sampling tube 2. When the clamping jaw 170 is driven by the second motor 120 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 thread pair, and then the two sampling tubes 2 can be rotated and tightened. Specifically, the second rotating wheel 190 drives the guide mechanism 180 to rotate. Since the guide mechanism 180 is connected to the clamping jaw 170, the second rotating wheel 190 can drive the clamping jaw 170 to rotate, so that the clamping jaw 170 can clamp the sampling tube 2 and drive the sampling tube 2 to move and rotate, and the rotation force of the second rotating wheel 190 is controllable, so that the tightening force of the sampling tube 2 during the threaded connection is controllable, and it can ensure that the sampling tube 2 is tightened in place. In the embodiment of the present application, the operation of driving the sampling tube 2 to move and rotate is realized through the sampling tube grasping mechanism 10, and then the sampling tube grasping mechanism 10 can be used to complete the docking of multiple sampling tubes 2, which not only reduces the labor cost, but also has simple operation, controllable tightening force, high degree of automation, and eliminates the safety hazard caused by the sampling tube 2 being too loosely connected when the sampling tube 2 is manually docked.

[0058] See also Figure 2 and Fig. 9 The embodiment of the present application also provides a grain storage bin food detection device 1, which can include any one of the sampling tube grabbing mechanisms 10 described above, and can also include a vacuum pipe 20, wherein the vacuum pipe 20 can be connected to the base plate 4, and the vacuum pipe 20 can be passed through the inside of the lifting wheel 140 and the transmission seat 150. It can be understood that the vacuum pipe 20 is a vacuum environment, and the vacuum pipe 20 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 20 and then be sent to the subsequent detection mechanism.

[0059] In summary, since the grain storage bin grain detection device 1 provided in the embodiment of the present application adopts the above-mentioned sampling tube grabbing mechanism 10, the grain storage bin grain detection device 1 provided in the embodiment of the present application can also solve the problems of the grain storage bin grain detection device 1 in the prior art that the grain storage bin grain detection device 1 is manually operated to dock the sampling tube 2, resulting in complex operation, poor safety and low degree of automation.

[0060] 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.

[0061] 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.

[0062] 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 grabbing mechanism, characterized in that: Used to clamp and rotate the sampling tube, the sampling tube grabbing mechanism includes: substrate; a first motor and a second motor, wherein the first motor and the second motor are arranged on the substrate; a first rotating wheel, wherein the first rotating wheel is connected to the first motor, and the first motor is configured to drive the first rotating wheel to rotate; A lifting wheel, wherein the lifting wheel is threadably engaged with the first rotating wheel, and the first rotating 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; A clamping jaw, the clamping jaw being connected to the other end of the connecting rod, and the connecting rod being configured to drive the clamping jaw to open and close so as to clamp the sampling tube; A guide mechanism, the 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 opening and closing of the clamping jaw; and The second rotating wheel is connected to the guide mechanism and is drivingly connected to the second motor. The second rotating wheel is configured to drive the clamping jaw to rotate so as to rotate the sampling tube.

2. The sampling tube grabbing mechanism according to claim 1, characterized in that: The second rotating wheel is penetrated by a bypass channel, and the connecting rod passes through the bypass channel.

3. The sampling tube grabbing mechanism according to claim 1, characterized in that: The guide mechanism comprises: a shell and a guide member, the shell is connected to the end surface of the second rotating wheel, a guide groove is arranged on the shell, and the guide member is connected to the clamping claw and embedded in the guide groove.

4. The sampling tube grabbing mechanism according to claim 3, characterized in that: The guide groove is a circular hole-shaped structure, the guide member is a circular sheet-shaped structure, and the guide member is eccentrically arranged in the guide groove.

5. The sampling tube grabbing mechanism according to claim 3, characterized in that: The clamping claw comprises: a body, a clamping portion and an elastic member, 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.

6. The sampling tube grabbing mechanism according to claim 5, 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.

7. The sampling tube grabbing mechanism according to claim 1, characterized in that: The clamping claw is rotatably connected to the connecting rod.

8. The sampling tube grabbing mechanism according to claim 1, characterized in that: The first motor is meshed with the first rotating wheel; And / or, the second motor is connected to the second rotating wheel via a belt drive.

9. A grain storage silo grain detection device, characterized in that: It comprises a sampling tube grasping mechanism as described in any one of claims 1-8.

10. The grain storage bin food detection device according to claim 9, characterized in that: The grain storage bin grain detection device also includes: a vacuum pipe, which is connected to the base plate, passes through the interior of the lifting wheel and the transmission seat, and is selectively sealed and docked with the sampling tube.

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