Sampling system

Abstract

The utility model discloses a sampling system, which relates to the technical field of grain detection, and comprises a mounting platform, a sampling machine, a control unit and a vehicle advancing unit, the mounting platform comprises a platform part and a plurality of supporting parts, and a negative pressure cabin is arranged on the platform part; the sampler is used for sampling unprocessed grains, a plurality of stand columns are arranged on the sampler, the bottoms of the stand columns are detachably installed on the supporting part, and the negative pressure cabin is used for providing negative pressure for the sampler; the control unit is used for sending instructions to the sampling machine and the negative pressure cabin so as to control the working vehicle advancing unit of the sampling machine and the negative pressure cabin to recognize vehicle information and driver information and send the vehicle information and the driver information to the control unit. According to the utility model, the support part on the mounting platform is detachably connected and matched with the upright post of the sampler, so that the sampler can be quickly disassembled and assembled, the mounting process is shortened, the sampler can be quickly mounted and put into use in emergency, and the cost is reduced because the processes of concrete pouring, frame mounting and the like are not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain detection, especially relates to a sampling system. BACKGROUND

[0002] The sampling machine is a kind of equipment in grain industry, it is widely applied because it can reduce personnel input, improve operation efficiency and avoid cheating phenomenon.But because of the acquisition characteristics of grain in two seasons of a year, after installing sampling machine in grain depot, it is only used in grain acquisition season, and after completing acquisition business, it is idle, cannot play its maximum value;At the same time, the installation process of sampling machine is complicated, it usually needs to pour concrete, installs frame and other complex processes to realize installation, leads to long installation process, cannot be applied in time when facing emergency, consumes much funds, especially some local small grain depot, there is no fund support, or it cannot provide large area installation sampling machine, and still adopts manual sampling. CONTENT OF UTILITY MODEL

[0003] The utility model mainly aims at providing a kind of sampling system, to solve the problem of long installation process of sampling machine in prior art, cannot be applied in time, consumes much funds.

[0004] To achieve the above-mentioned purpose, the utility model provides a kind of sampling system, comprising:

[0005] Installation platform, the installation platform includes platform part and multiple support parts, the platform part is provided with negative pressure cabin;

[0006] Sampling machine, the sampling machine is used to sample raw grain, the sampling machine is provided with multiple stand columns, the number of stand column and the number of support part are consistent and are set one by one, the bottom of stand column is detachably installed in support part, and the negative pressure cabin is used to provide negative pressure for the sampling machine;

[0007] Control unit, the control unit is used to send instruction to the sampling machine and the negative pressure cabin, to control the work of the sampling machine and the negative pressure cabin;

[0008] Vehicle traveling unit, the vehicle traveling unit is used to identify vehicle information and driver information and send to the control unit, and the vehicle traveling unit is also used to obtain the working image of the sampling machine and send to the control unit.

[0009] In an embodiment, the vehicle traveling unit includes vehicle type identification unit, identity verification unit and camera unit, the vehicle type identification unit is used to identify the vehicle information according to the size of the vehicle to be sampled, the identity verification unit is used to obtain the driver information according to the driver's identity card, and the camera unit is used to obtain the working image of the sampling machine by shooting the sampling machine.

[0010] In an embodiment, the vehicle type identification unit comprises a laser range finder, a vehicle type identification camera, and a vehicle type identification module. The sampling system further comprises a sampling area for parking the vehicle to be sampled. The laser range finder is configured to cooperate with the vehicle type identification camera to obtain size information of the vehicle to be sampled and send the size information to the vehicle type identification module. The vehicle type identification module is configured to determine the vehicle type according to the size information to obtain the vehicle information.

[0011] In an embodiment, the identity verification unit comprises a cabinet and a card reader arranged in the cabinet. The card reader is configured to identify the driver information in the identity card and send the driver information to the control unit.

[0012] In an embodiment, the camera unit comprises a camera and an illumination module. The camera is configured to obtain the working image of the sampling machine. The illumination module is configured to provide light for the camera.

[0013] In an embodiment, the vehicle traveling unit further comprises a voice intercom module and a guidance unit. The voice intercom module comprises an audio amplifier, a speaker, and a microphone. The guidance unit comprises a display screen, a barrier gate, a traffic light, and a vehicle number recognition camera. The vehicle number recognition camera is configured to identify the vehicle number of the vehicle to be sampled that exhibits abnormal behavior and send the vehicle number to the control unit. The speaker is arranged on the sampling machine. The microphone is configured to record sound. The sound is amplified by the audio amplifier and output by the speaker.

[0014] In an embodiment, each support portion is provided with a plurality of connecting rods. The stand column comprises a stand rod and a base. The bottom of the base abuts against the support portion. The top of the base is connected to the stand rod. The size of the base is greater than the size of the stand rod, so that the top of the base forms an abutting surface.

[0015] The sampling system further comprises a plurality of pressing assemblies. Each pressing assembly comprises a pressing rod and a pressing member. Each pressing rod is provided with a socket at both ends for the connecting rod to pass through. The pressing rod abuts against the abutting surface when the pressing rod is inserted into the socket. The pressing member is configured to abut against the base and the stand portion. When the base abuts against the support portion, the plurality of connecting rods are arranged around the outer periphery of the base.

[0016] In an embodiment, the sampling machine further comprises a guide rail, a walking frame, a driving module, and a sampling device. A plurality of stand columns are arranged at the bottom of the guide rail. The sampling device is slidingly connected to the guide rail through the walking frame. The driving module is configured to drive the walking frame to slide along the guide rail. The sampling device is configured to sample raw grains. The negative pressure cabin provides negative pressure for the sampling device through a sampling pipeline.

[0017] In an embodiment, the sampling device comprises a rotating base, a cantilever, a first connecting rod, a second connecting rod and a sampling rod, the rotating base is rotatably mounted on the walking frame, the cantilever is mounted on the rotating base and extends away from the rotating base, the first connecting rod is rotatably connected to the rotating base and is arranged parallel to the cantilever, one end of the first connecting rod away from the rotating base is connected to the second connecting rod, the second connecting rod is rotatably connected to one end of the cantilever away from the rotating base, one end of the second connecting rod away from the first connecting rod is connected to the sampling rod, the sampling rod is hollow and communicates with the sampling pipeline.

[0018] In an embodiment, the negative pressure chamber comprises a shell, a negative pressure machine, a sample bin and a temporary storage cabinet, the shell forms a mounting cavity inside, the negative pressure machine, the sample bin and the temporary storage cabinet are arranged in the mounting cavity, the temporary storage cabinet communicates with the sampling pipeline, the temporary storage cabinet is used for screening the grain and is provided with a storage cavity for temporarily storing the grain, the negative pressure machine communicates with the storage cavity and is used for generating negative pressure, the storage cavity is provided with an output pipeline connecting the storage cavity and the sample bin, the sample bin is used for storing the grain and conveying the grain to an external inspection device through a sample pipeline.

[0019] The technical scheme of the utility model discloses a stand column is arranged at the bottom of the sampling machine, and a supporting part is arranged on the mounting platform, the quick installation of the sampling machine and the mounting platform is realized through the detachable connection between the stand column and the supporting part, and the complex processes such as concrete pouring and frame installation are not needed, vehicle information and driver information of the vehicle to be sampled are sent to the control unit through the vehicle traveling unit, the control unit can control the working state of the negative pressure chamber and the sampling machine according to different types of vehicles, the working image of the sampling machine is obtained through the vehicle traveling unit, and the control unit can adjust the working state of the sampling machine according to the real-time working condition of the sampling machine. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0021] Figure 1 The module schematic diagram of the sampling system provided by the present application is shown in the figure.

[0022] Figure 2 The structure schematic diagram of the sampling system provided by the present application is shown in the figure.

[0023] Figure 3 The structure schematic diagram of the sampling system provided by the present application is shown in the figure.

[0024] Figure 4 The structure schematic diagram of the sampling system provided by the present application is shown in the figure.

[0025] Figure 5 The structure schematic diagram of the sampling system provided by the present application is shown in the figure.

[0026] Figure 6 The structure schematic diagram of the sampling system provided by the present application is shown in the figure.

[0027] Figure 7 The structure schematic diagram of the sampling system provided by the present application is shown in the figure.

[0028] Figure 8 The structure schematic diagram of the sampling system provided by the present application is shown in the figure.

[0029] Figure 9 The structure schematic diagram of the sampling system provided by the present application is shown in the figure.

[0030] Explanation of the reference signs:

[0031] 100, sampling system; 1, mounting platform; 11, platform part; 12, support part; 13, connecting rod; 14, supporting leg; 2, negative pressure cabin; 21, shell; 22, negative pressure machine; 23, sample bin; 24, temporary storage cabinet; 3, sampling machine; 31, stand; 311, vertical rod; 312, base; 313, abutting surface; 32, guide rail; 321, bottom plate; 322, walking part; 33, walking frame; 331, pulley; 34, driving module; 35, sampling device; 351, rotating seat; 352, cantilever; 353, first connecting rod; 354, second connecting rod; 355, sampling rod; 36, buffer; 361, sleeve; 362, telescopic shaft; 363, elastic member; 4, pressing assembly; 41, pressing rod; 42, pressing member; 50, surplus grain returning device; 51, support; 52, cross arm; 53, rotary driving member; 54, hopper; 60, sampling pipeline; 70, control unit; 80, vehicle traveling unit; 81, vehicle type identification unit; 82, identity verification unit; 83, camera unit; 84, voice intercom module; 85, guiding unit.

[0032] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0034] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0036] Due to the one-year two-season acquisition characteristics of grain, after the installation of sampling machine in grain depot, only in the grain acquisition season, the idle is used after the completion of acquisition business, which cannot play its maximum value; At the same time, the installation process of sampling machine is complicated, usually needs to pour concrete, install frame and other complex processes to realize installation, which leads to long installation process, cannot be applied in time when facing emergency, consumes more funds, especially some small grain depot in some places, cannot provide large area installation sampling machine, still uses manual sampling.

[0037] In order to solve the above problems, the utility model provides a kind of sampling system 100.

[0038] Please combine Figures 1 to 5 The sampling system 100 of the embodiment includes installation platform 1, sampling machine 3, control unit 70 and vehicle travel unit 80, installation platform 1 includes platform part 11 and multiple support parts 12, platform part 11 is provided with negative pressure cabin 2;Sampling machine 3 is used for sampling raw grain, and multiple vertical columns 31 are arranged on sampling machine 3, the number of vertical columns 31 and the number of support parts 12 are consistent and are arranged one by one, the bottom of vertical column 31 is detachably installed on support part 12, and negative pressure cabin 2 is used to provide negative pressure for sampling machine 3;Control unit 70 is used to send instructions to sampling machine 3 and negative pressure cabin 2 to control the work of sampling machine 3 and negative pressure cabin 2, vehicle travel unit 80 is used to identify vehicle information and driver information and send to control unit 70, and vehicle travel unit 80 is also used to obtain working image of sampling machine 3 and send to control unit 70.

[0039] It can be understood that the load quality of installation platform 1 is large, which can bear negative pressure cabin 2 and meet the strength requirement of the operation of sampling machine 3, all negative pressure related components are integrated in negative pressure cabin 2 in the application, hoisting installation is facilitated, assembly efficiency is further improved, and assembly speed is improved.

[0040] The technical scheme of the utility model discloses a support part 12 on the mounting platform 1 and the detachable connection between the support part 12 and the stand 31 of the sampling machine 3, which realizes the quick installation of the sampling machine 3 and the mounting platform 1, and the complex processes such as concrete pouring and frame installation are not needed, and the vehicle information and the driver information of the vehicle to be sampled are sent to the control unit 70 through the vehicle traveling unit 80, so that the control unit 70 can control the working state of the negative pressure cabin and the sampling machine 3 according to different types of vehicles, the working image of the sampling machine 3 is obtained through the vehicle traveling unit 80, and the control unit 70 can adjust the working state of the sampling machine 3 according to the real-time working condition of the sampling machine 3.

[0041] In an embodiment, the vehicle traveling unit 80 comprises a vehicle type identification unit 81, an identity verification unit 82 and a camera unit 83, the vehicle type identification unit 81 is used to identify the vehicle information according to the size of the vehicle to be sampled, the identity verification unit 82 is used to obtain the driver information according to the driver's identity card, and the camera unit 83 is used to obtain the working image of the sampling machine 3 by shooting the sampling machine 3. The size of the vehicle is obtained through the vehicle type identification unit 81 to determine the vehicle information such as the vehicle type, and since the types of vehicles used for sampling are limited, only the sizes of part of the vehicle types need to be stored to realize automatic identification of the vehicle information, and higher visual recognition technology is needed, which reduces the cost, and the identity verification unit 82 obtains the driver information according to the driver's identity card, ensures that only authorized drivers can approach the sampling equipment, reduces the safety risk, and the identity card operation is relatively convenient, which improves the efficiency of identity verification. The camera unit 83 obtains the working image of the sampling machine 3 and sends it to the control unit 70, which is convenient for the operator to adjust the working state of the sampling machine 3 according to the real-time running condition of the sampling machine 3, and improves the safety of the sampling machine 3.

[0042] Further, the vehicle type identification unit 81 comprises a laser range finder, a vehicle type identification camera, and a vehicle type identification module. The sampling system 100 further comprises a sampling area for parking the vehicle to be sampled. The laser range finder is provided in a plurality of numbers and is configured to cooperate with the vehicle type identification camera to obtain the size information of the vehicle to be sampled and send the size information to the vehicle type identification module. The vehicle type identification module is configured to determine the vehicle type according to the size information to obtain the vehicle information.

[0043] Specifically, after the vehicle to be sampled enters the sampling area, the vehicle type identification camera obtains the image of the vehicle to be sampled. The laser range finder scans two points of the vehicle to be sampled, and then controls the sampling machine to rotate to the two points, respectively, to obtain the specific distances of the two points. Then, according to the specific distances of the two points and the pixel points occupied by the two points on the image, the size information of the vehicle to be sampled is determined and sent to the vehicle type identification module. The size data provided by the laser range finder is more accurate, which can ensure the accuracy of vehicle type identification and reduce misjudgment. The vehicle type identification module obtains the size information of the vehicle to be sampled by cooperating with the laser range finder and the vehicle type identification camera, which can more comprehensively analyze and determine the vehicle type and improve the accuracy of vehicle type detection.

[0044] In an embodiment, the identity verification unit 82 comprises a cabinet and a card reader arranged in the cabinet. The card reader is configured to identify the driver information in the identity card and send the driver information to the control unit 70. The card reader is easy to operate. Only one swipe is needed to complete the identity verification, which improves the sampling efficiency. Meanwhile, the card reader can effectively prevent unauthorized access and enhance the security of the sampling machine 3.

[0045] In an embodiment, the camera unit 83 comprises a camera and an illumination module. The camera is provided in a plurality of numbers and is arranged on the sampling machine 3 at intervals. The camera is configured to obtain the working image of the sampling machine 3. The illumination module is configured to provide light for the camera. In an environment with insufficient light, the light provided by the illumination module can ensure the normal operation of the camera and avoid picture blurring or failure of recognition due to insufficient light. Meanwhile, the light provided by the illumination module can make the recognition and analysis more accurate.

[0046] In an embodiment, the vehicle traveling unit 80 further comprises a voice intercom module 84 and a guiding unit 85. The voice intercom module 84 comprises an audio amplifier, a loudspeaker, and a microphone. The guiding unit 85 comprises a display screen, a barrier gate, a traffic light, and a vehicle number recognition camera. The vehicle number recognition camera is configured to identify the vehicle number of the vehicle to be sampled that exhibits abnormal behavior and send the vehicle number to the control unit 70. The loudspeaker is arranged on the sampling machine 3. The sound recorded by the microphone is amplified by the audio amplifier and then output by the loudspeaker. The display screen, the barrier gate, and the traffic light are configured to provide driving instructions for the vehicle to be sampled to ensure the safety of the sampling area. Meanwhile, the sound recorded by the microphone is amplified by the audio amplifier and then output by the loudspeaker, which facilitates the driver to work in an orderly manner according to the sound instructions output by the loudspeaker and ensures the order on the scene.

[0047] Please combine Figures 3 to 5 In an embodiment, a plurality of connecting rods 13 are arranged on each support part 12, the stand column 31 comprises a stand rod 311 and a base 312, the bottom of the base 312 abuts against the support part 12, the top of the base 312 is connected with the stand rod 311, the size of the base 312 is larger than the size of the stand rod 311, so that the top of the base 312 forms an abutting surface 313; the sampling system 100 further comprises a plurality of pressing assemblies 4, each pressing assembly 4 comprises a pressing rod 41 and a pressing piece 42, both ends of each pressing rod 41 are provided with insertion holes for the connecting rods 13 to pass through, the pressing rod 41 abuts against the abutting surface 313 when the insertion holes are inserted and matched, the pressing piece 42 is used to press the pressing rod 41 against the base 312, and when the base 312 abuts against the support part 12, the plurality of connecting rods 13 are arranged around the outer periphery of the base 312. By setting the size of the base 312 to be larger than the size of the stand rod 311, the top of the base 312 forms the abutting surface 313, which improves the contact area between the pressing rod 41 and the base 312, thereby improving the fixing effect of the pressing rod 41 on the base 312, and the entire sampling machine 3 can be made more stable. The stand column 31 is arranged at the bottom of the sampling machine 3, the support part 12 is arranged on the installation platform 1, the pressing rod 41 is passed through the connecting rods 13 on the support part 12 after the stand column 31 and the support part 12 abut against each other, and the pressing rod 41 is pressed against the base 312 by the pressing piece 42, so that the pressing rod 41 is arranged around the outer periphery of the stand column 31, limiting the movement of the stand column 31 in the horizontal direction, and the pressing rod 41 that is pressed against gives the stand column 31 a force in the vertical direction, thereby avoiding the movement of the stand column 31 in the vertical direction, so that the sampling machine 3 and the installation platform 1 are quickly installed without the need for complex processes such as concrete pouring and installation of frames.

[0048] Specifically, the support part 12 and the base 312 are both arranged in the shape of a cuboid, four connecting rods 13 are arranged on each support part 12, and the four connecting rods 13 are arranged at the four corners of the support part 12. By arranging the connecting rods 13 at the four corners, the connecting rods 13 at the four corners act as force transmission and distribution points, which can more evenly bear the pressure of the sampling machine 3 and reduce the shaking or tilting of the sampling machine 3. The stability of the entire sampling system 100 can be effectively improved; and the force can be avoided from being concentrated on a specific point, the local stress can be reduced, and the service life of the sampling system 100 can be prolonged.

[0049] Further, the bottom of the base 312 is provided with supporting legs 14, the supporting legs 14 are arranged at intervals from the outer periphery of the base 312, thereby supporting the base 312 and uniformly dispersing the stress of the base 312 on the plane, so as to avoid damage to the base 312 caused by stress concentration.

[0050] In an embodiment, the connecting rod 13 is a screw rod, the pressing member 42 is a nut, and the pressing member 42 is threadedly connected with the connecting rod 13 to press the pressing rod 41 against the abutting surface 313. Through the thread connection between the nut and the screw rod, the contact between the pressing rod 41 and the abutting surface 313 is more compact, avoiding loosening or falling off of the connecting rod 13 and the pressing rod 41, and also making the whole structure more stable, ensuring the reliability of the connection, reducing the loosening caused by vibration or other external forces during sampling, and improving the stability and safety of the operation of the sampling system 100

[0051] Please refer to Figure 2 , Figure 4 and Figure 6 , further, the sampling machine 3 further comprises a guide rail 32, a walking frame 33, a driving module 34 and a sampling device 35, a plurality of stand columns 31 are connected at the bottom of the guide rail 32, the sampling device 35 is slidably connected to the guide rail 32 through the walking frame 33, the driving module is used to drive the walking frame 33 to slide along the guide rail 32, the sampling device 35 is used to sample raw grain, and the negative pressure cabin 2 provides negative pressure for the sampling device 35 through the sampling pipeline 60. The guide rail 32 cooperates with the walking frame 33 to reduce the frictional resistance during the movement of the sampling device 35, so that the sampling device 35 can be driven to move along the guide rail 32 by the driving module 34 with smaller power, thereby reducing the cost and the overall weight, and the driving of the sampling device 35 along the guide rail 32 by the driving module 34 can make the sampling range of the sampling device 35 larger, thereby improving the applicable scenarios,

[0052] Specifically, the sampling device 35 comprises a rotating seat 351, a cantilever 352, a first connecting rod 353, a second connecting rod 354 and a sampling rod 355, the rotating seat 351 is rotatably installed on the walking frame 33, the cantilever 352 is installed on the rotating seat 351 and extends away from the rotating seat 351, the first connecting rod 353 is rotatably connected to the rotating seat 351 and is arranged parallel to the cantilever 352, one end of the first connecting rod 353 away from the rotating seat 351 is connected with the second connecting rod 354, the second connecting rod 354 is rotatably connected to one end of the cantilever 352 away from the rotating seat 351, one end of the second connecting rod 354 away from the first connecting rod 353 is connected with the sampling rod 355, and the sampling rod 355 is hollow and communicates with the sampling pipeline 60. Through the cooperation of the rotating seat 351, the walking frame 33, the guide rail 32 and the driving module 34, the sampling rod 355 can perform sampling operation in any direction of the extension path of the guide rail 32, thereby improving the flexibility of sampling and the sampling range of the sampling rod 355, the first connecting rod 353 and the rotating seat 351 are rotatable, and the second connecting rod 354 and the cantilever 352 are rotatable, forming a planar connecting rod mechanism, which further improves the rotating flexibility of the sampling rod 355, so that the sampling rod 355 always maintains a vertical state during the downward sampling movement, which can ensure accurate downward sampling and keep a vertical path when sampling into the grain pile, so as not to be bent.

[0053] Please combine Figure 6 and Figure 8 In an embodiment, the rotating seat 351 is further provided with a buffer 36, the buffer 36 including a sleeve 361, a telescopic shaft 362 and an elastic member 363, the telescopic shaft 362 being arranged in the sleeve 361, the elastic member 363 being sleeved outside the telescopic shaft 362 and located between the telescopic shaft 362 and the sleeve 361, the elastic member 363 connecting the sleeve 361 and the telescopic shaft 362, and the telescopic shaft 362 being connected with the first connecting rod 353. In the actual sampling process, there may be a lateral deviation in the downward sampling of the sampling rod 355, and the buffer 36 buffers the lateral deviation occurring in the downward sampling of the sampling rod 355 through the connection of the telescopic shaft 362 and the first connecting rod 353, so as to avoid the bending and damage of the sampling rod 355 and prolong the service life of the sampling rod 355.

[0054] Please combine Figure 2 and Figure 7 In an embodiment, the negative pressure cabin 2 includes a shell 21, a negative pressure machine 22, a sample bin 23 and a temporary storage cabinet 24, the shell 21 forming an installation cavity inside, the negative pressure machine 22, the sample bin 23 and the temporary storage cabinet 24 all being arranged in the installation cavity, the temporary storage cabinet 24 being communicated with the sampling pipeline 60, the temporary storage cabinet 24 being used for screening the grain and being provided with a storage cavity for temporarily storing the grain, the negative pressure machine 22 being communicated with the storage cavity and being used for generating negative pressure, the storage cavity being provided with an output pipeline connecting the storage cavity and the sample bin 23, and the sample bin 23 being used for storing the grain and conveying the grain to an external inspection device through a sample grain pipeline. The shell 21 is used for protecting the negative pressure machine 22, the sample bin 23 and the temporary storage cabinet 24 and other devices from the external environment, avoiding damage of the devices, prolonging the service life of the devices, and meanwhile, the temporary storage cabinet 24, the negative pressure machine 22 and the sample bin 23 are all integrated in the negative pressure cabin 2, facilitating hoisting and installation, further improving the assembly efficiency and the assembly speed.

[0055] Please combine Figure 2 and Figure 9 In an embodiment, the sampling system 100 further includes a residual grain returning device 50, the residual grain returning device 50 including a bracket 51, a cross arm 52, a rotary driving member 53 and a hopper 54, the cross arm 52 being mounted on the guide rail 32 through the bracket 51, the hopper 54 being located at an end of the cross arm 52 away from the bracket 51, the rotary driving member 53 being used for driving the cross arm 52 to rotate to drive the hopper 54 to rotate, and the hopper 54 being communicated with the storage cavity through a residual grain pipeline and being used for conveying the screened residual grain. The rotary driving member 53 drives the cross arm 52 to drive the hopper 54 to return the excess residual grain in the storage cavity, reduces the waste of the grain, reduces the sampling loss, and can also return the residual grain to a driver vehicle, reduces the participation of personnel, and reduces the labor cost.

[0056] In an embodiment, the guide rail 32 comprises a bottom plate 321 and two walking parts 322, the bottom of the bottom plate 321 is provided with the stand 31; the two walking parts 322 are protruded on the bottom plate 321 and are arranged at two sides of the width direction of the bottom plate 321, the bottom of the walking frame 33 is provided with the pulley 331, and the walking frame 33 is in sliding contact with the two walking parts 322 through the pulley 331. The sliding contact of the pulley 331 with the walking part 322 can be limited through the pulley 331, the stability of the walking frame 33 is improved, the walking frame 33 is prevented from deviating, meanwhile, the pulley 331 can run stably in the sliding process, the skewer 355 is more stable in the moving process, the connection structure of the skewer 355 is prevented from being damaged by vibration and the like, and the safety of the skewer 355 is improved.

[0057] The above is only optional embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the attached drawings or directly / indirectly applied in other related technical fields under the concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A sampling system characterized by, The utility model relates to a kind of sampling system, including: Mounting platform, the mounting platform includes platform part and multiple support parts, platform part is provided with negative pressure cabin; Sampling machine, the sampling machine is used to sample raw grain, the sampling machine is provided with multiple stand columns, the number of the stand column and the number of the support part are consistent and one-to-one correspondence is arranged, the bottom of the stand column is detachably mounted on the support part, and the negative pressure cabin is used to provide negative pressure for the sampling machine; Control unit, the control unit is used to send instruction to the sampling machine and the negative pressure cabin, to control the work of the sampling machine and the negative pressure cabin; Vehicle travel unit, the vehicle travel unit is used to identify vehicle information and driver information and send to the control unit, and the vehicle travel unit is also used to obtain the working image of the sampling machine and send to the control unit.

2. The sampling system of claim 1, wherein, The vehicle travel unit includes a vehicle type identification unit, an identity verification unit, and a camera unit. The vehicle type identification unit is used to identify the vehicle information based on the size of the vehicle to be sampled. The identity verification unit is used to obtain the driver information based on the driver's identity card. The camera unit is used to obtain the working image of the sampling machine by taking pictures of the sampling machine.

3. The sampling system of claim 2, wherein, The vehicle type identification unit includes a laser range finder, a vehicle type identification camera, and a vehicle type identification module. The sampling system also has a sampling area for parking the vehicle to be sampled. The laser range finder is used to obtain the size information of the vehicle to be sampled in cooperation with the vehicle type identification camera and send it to the vehicle type identification module. The vehicle type identification module is used to determine the vehicle type based on the size information to obtain the vehicle information.

4. The sampling system of claim 2, wherein, The identity verification unit includes a cabinet and a card reader installed in the cabinet. The card reader is used to identify the driver information in the identity card and send it to the control unit.

5. The sampling system of claim 2, wherein, The camera unit includes a camera and an illumination module. The camera is installed on the sampling machine in multiple and spaced-apart. The camera is used to obtain the working image of the sampling machine. The illumination module is used to provide light for the camera.

6. The sampling system of claim 2, wherein, The vehicle travel unit also includes a voice intercom module and a guidance unit. The voice intercom module includes an audio amplifier, a speaker, and a microphone. The guidance unit includes a display screen, a barrier gate, a traffic light, and a vehicle number recognition camera. The vehicle number recognition camera identifies the vehicle number of the vehicle to be sampled that exhibits abnormal behavior and sends it to the control unit. The speaker is installed on the sampling machine. The microphone records the sound, which is amplified by the audio amplifier and output by the speaker.

7. The sampling system of any one of claims 1 to 6, wherein, Each support part is provided with multiple connecting rods. The stand column includes a stand and a base. The bottom of the base abuts against the support part. The top of the base is connected with the stand. The size of the base is larger than that of the stand, so that the top of the base forms an abutting surface. The sampling system further comprises a plurality of pressing assemblies, each of the pressing assemblies comprising a pressing rod and a pressing piece, both ends of each of the pressing rods are provided with a socket for the connecting rod to pass through, the pressing rod abuts against the abutting surface when the socket is inserted, the pressing piece is used to abut the pressing rod against the base, and the base abuts against the support part, and the plurality of connecting rods are arranged around the outer periphery of the base.

8. The sampling system of any one of claims 1 to 6, wherein, The sampling machine further comprises a guide rail, a walking frame, a driving module and a sampling device, a plurality of the stand columns are connected at the bottom of the guide rail, the sampling device is slidingly connected to the guide rail through the walking frame, the driving module is used to drive the walking frame to slide along the guide rail, the sampling device is used to sample raw grains, and the negative pressure cabin provides negative pressure for the sampling device through a sampling pipeline.

9. The sampling system of claim 8, wherein, The sampling device comprises a rotating seat, a cantilever, a first connecting rod, a second connecting rod and a sampling rod, the rotating seat is rotatably installed on the walking frame, the cantilever is installed on the rotating seat and extends away from the rotating seat, the first connecting rod is rotatably connected to the rotating seat and is arranged parallel to the cantilever, one end of the first connecting rod away from the rotating seat is connected to the second connecting rod, the second connecting rod is rotatably connected to one end of the cantilever away from the rotating seat, one end of the second connecting rod away from the first connecting rod is connected to the sampling rod, and the sampling rod is hollow and communicates with the sampling pipeline.

10. The sampling system of claim 9, wherein, The negative pressure cabin comprises an outer shell, a negative pressure machine, a sample bin and a temporary storage cabinet, an installation cavity is formed in the outer shell, the negative pressure machine, the sample bin and the temporary storage cabinet are arranged in the installation cavity, the temporary storage cabinet communicates with the sampling pipeline, the temporary storage cabinet is used to screen grains and is provided with a storage cavity for temporarily storing grains, the negative pressure machine communicates with the storage cavity and is used to generate negative pressure, an output pipeline connecting the storage cavity and the sample bin is arranged at the storage cavity, and the sample bin is used to store grains and convey the grains to external inspection equipment through a sample pipeline.

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