Sample tank and sampler

Abstract

The sample tank comprises a tank body, a large cover and a small cover rotationally connected to the large cover, a first connecting part is arranged at a tank opening of the tank body, the large cover is provided with a second connecting part used for being connected with the first connecting part in a matched mode, the large cover is provided with a first channel communicated with the interior of the tank body, and the small cover is located at the end of the first channel; the small cover comprises a closed state and an open state. The sample tank adopts a double-cover structure, the large cover is connected with the tank body and the small cover, and the small cover blocks the end part of the first channel in a closed state to form a sealed cavity. Meanwhile, by matching with components such as a lock tongue, a lock pin and an actuator, the sealing performance of the tank body is further enhanced, powder leakage and moisture loss of the coal sample are effectively prevented, the stability of the sample quality in the storage and transportation process is ensured, and a reliable basis is provided for subsequent accurate coal evaluation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal sampling, in particular to a sample tank and a sampler. BACKGROUND

[0002] Coal is a complex mixture, and its physical and chemical properties can vary significantly in different regions, different coal seams and different mining periods. To ensure that coal can be used stably, efficiently and environmentally in various application fields, it is necessary to evaluate the coal. Before the evaluation of coal, the first step is to obtain a representative coal sample by a scientific and reasonable sampling method, so that the quality indicators of coal such as calorific value, ash content, volatile matter, moisture content and sulfur content can be accurately analyzed, and reliable basis can be provided for quality evaluation, pricing, rational use and pollution control of coal.

[0003] In the process of coal sampling, a sampler and a sample tank are needed to complete the sampling work. One sampler corresponds to multiple sample tubes, and each sample tube is sampled multiple times. Since each sample tank needs to be sampled multiple times at different time periods, the lid of the sample tank needs to be opened and closed before and after each sampling, so that the sample can be in a relatively closed environment to prevent the coal sample from running powder and losing moisture. The existing sample tank opening and closing are manually operated, which greatly reduces the sampling rate. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a sample tank and a sampler to solve the sealing problem of the sample tank during sampling.

[0005] The sample tank provided by the present application adopts the following technical solution: a tank body, a large lid installed at the opening of the tank body, and a small lid rotationally connected to the large lid, the large lid is provided with a first channel communicating with the inside of the tank body, the small lid is located at the end of the first channel, and the small lid comprises a closed state and an open state.

[0006] Closed state: the small lid blocks the end of the first channel, and the inside of the tank body is a sealed cavity.

[0007] Open state: the small lid deviates from the end of the first channel, and the inside of the tank body communicates with the outside.

[0008] By adopting the above technical scheme, the sampling double cover structure is adopted, the large cover is used as an intermediate part and is connected with the tank body and the small cover. The small cover is rotationally connected to the large cover, so that the small cover can be opened and closed under the support of the large cover, and the large cover provides a mounting and moving platform for the small cover. The first channel mainly receives sample coal. When the sample is received, the small cover is opened to enable the first channel to be connected with the feeding pipe of the sampling machine, so that the sample tank is in a sealed state when the sample is filled. When the sample tank is filled with sample, the small cover closes the first channel to avoid the influence of external air, moisture and other factors on the quality of the coal sample, and to ensure the accuracy of the subsequent evaluation data.

[0009] Optionally, the small cover is fixedly connected with at least one first lock tongue, the tank body is provided with at least one second lock tongue at the tank opening, and the large cover is slidably installed with a lock pin capable of being inserted into the first lock tongue and / or the second lock tongue, a push plate for pushing out the lock pin, an actuator for keeping the lock pin in an extended state, and a spring providing a retracting tendency force of the lock pin. The push plate extends out of the large cover.

[0010] By adopting the above technical scheme, the first lock tongue of the small cover and the second lock tongue at the tank opening of the tank body cooperate with the lock pin on the large cover to form a multiple locking mechanism. When the small cover is in a closed state, not only is the end of the first channel blocked by the small cover, but also the lock pin is inserted into the first lock tongue and the second lock tongue, further enhancing the sealing performance of the tank body. This multiple locking ensures that the coal sample in the tank body can remain sealed even under the influence of external pressure, vibration or other adverse factors, effectively preventing powder loss and moisture loss; the actuator can drive or limit the movement of the pushing assembly, the pushing assembly can drive the lock pin to move, so that the lock pin can be inserted into the first lock tongue and the second lock tongue, thereby achieving the locking of the cover; the spring plays an important auxiliary role in this system. When the actuator is not working, the spring forces the lock pin to retract into the pin hole, so that the small cover is in an openable state. In this way, when the small cover needs to be opened, it can be easily unlocked without additional operation. The elastic force of the spring can be adjusted according to actual needs to ensure that the lock pin can retract into the pin hole under appropriate force.

[0011] Optionally, the large cover further comprises a control module and a sensing module. The sensing module is used to receive an unlocking signal and transmit it to the control module. The control module controls the opening and closing of the actuator. The control module and the sensing module are electrically connected, and the control module and the actuator are electrically connected.

[0012] By adopting the above technical scheme, the sensing module is responsible for receiving the unlocking signal and converting it into an electrical signal to transmit to the control module. After receiving the signal from the sensing module, the control module processes and analyzes it. It will determine whether this signal is a valid unlocking signal, and if so, it will issue a corresponding control instruction to control the opening and closing of the actuator.

[0013] Optionally, the small cover is provided with at least one push rod for driving the small cover to rotate, the push rod is arranged away from the rotation center of the small cover; the large cover is rotationally connected with a push member, the push member is provided with a trigger portion for abutting against the push rod, and the trigger portion is provided with a limiting hook for preventing the push rod from being separated.

[0014] By adopting the above technical scheme, when the small cover needs to be opened, an external force is applied on the push rod, and the small cover can rotate around the rotation shaft to communicate the inside of the can body with the outside; when the small cover needs to be closed, reverse operation can make the small cover block the end of the first channel to form a sealed cavity. The push rod provides a position for applying driving force. By applying an external force to the push rod, the small cover can be easily rotated; the design of the push rod can control the rotation angle and speed of the small cover. By reasonably designing the position and size of the push rod, the motion trajectory of the small cover during opening and closing can be adjusted to accurately reach the required position. At the same time, the rotation speed of the small cover can also be adjusted by controlling the size of the external force applied on the push rod, to avoid the adverse effects of too fast or too slow movement on the system.

[0015] When the trigger portion is subjected to a force, the push member rotates around its rotation connection point. During rotation, the contact point between the abutting portion and the push rod changes constantly, and the direction and size of the pushing force of the abutting portion on the push rod also change. The changing pushing force causes the push rod to displace, and since the push rod is fixedly connected with the small cover, the displacement of the push rod drives the small cover to rotate around the rotation shaft. Through force transmission and motion conversion, the action process from the rotation of the push member to the rotation of the small cover for closing is realized.

[0016] A sampler includes a box body, a plurality of transportation mechanisms for transporting the sample can, a rotating disc rotationally connected in the box body, a power source for driving the rotating disc to rotate, an unlocking mechanism for unlocking the sample can, an opening mechanism for opening the small cover, a feeding mechanism for feeding sample to the sample can, and a closing mechanism for closing the small cover; the transportation mechanisms transport the sample can to the rotating disc, and the rotating disc rotates intermittently under the action of the power source, so that the sample can is operated between the unlocking mechanism, the opening mechanism, the feeding mechanism and the closing mechanism.

[0017] By adopting the above technical scheme, the transportation mechanisms transport the sample can to the rotating disc and then move it into the rotating disc. The rotating disc rotates intermittently under the action of the power source, so that the sample can enters the unlocking mechanism, the opening mechanism, the feeding mechanism and the closing mechanism in sequence. The unlocking mechanism is used for unlocking the sample can; the opening mechanism is used for opening the cover of the sample can; the feeding mechanism is used for feeding sample to the sample can, and the closing mechanism is used for closing the cover of the sample can after the feeding is completed; finally, the transportation mechanisms transport the sample can with completed sampling out.

[0018] Optionally, the cover opening mechanism comprises a first fixed frame fixedly connected to the box, and a first lever fixedly connected to the first fixed frame; when the sample jar is transported to the cover opening station, the first lever abuts against the cover of the sample jar, and the first lever pushes the cover of the sample jar to rotate with the rotation of the turntable; the cover closing mechanism comprises a second fixed frame fixedly connected to the box, and a second lever fixedly connected to the second fixed frame; when the sample jar is transported to the blanking station, the second lever abuts against the cover of the sample jar, and the second lever pushes the cover of the sample jar to reset and close with the rotation of the turntable.

[0019] By adopting the above technical scheme, the first fixed frame is fixedly connected to the box, thereby providing stable support for the first lever. When the sample jar is transported to the cover opening station, the first lever abuts against the cover of the sample jar. With the rotation of the turntable, the first lever pushes the cover of the sample jar to rotate, thereby realizing automatic cover opening operation. This automatic cover opening mode is very efficient in the automatic sampling process and does not require manual intervention, thereby greatly improving the sampling efficiency; similarly, the second lever realizes automatic cover closing operation; the cooperation of the cover opening mechanism and the cover closing mechanism can effectively protect the quality of the sample. The cover opening mechanism opens the sample jar when blanking operation is required, thereby providing a passage for the blanking mechanism; the cover closing mechanism closes the sample jar in time after the blanking is completed, thereby preventing the sample from being affected by the external environment. The two mechanisms cooperate with each other to ensure that the sample is always in a good storage state during the sampling process, thereby providing a reliable sample for subsequent analysis and detection.

[0020] Optionally, the blanking mechanism comprises a blanking pipeline externally connected with a sample supply device, a sealing assembly fixedly connected to an end of the blanking pipeline, and a lifting assembly arranged in the box; the turntable is provided with a plurality of positionally central symmetric through holes; the axis of the blanking pipeline, the axis of the through hole, and the axis of the sample jar substantially coincide with each other; the lifting assembly is located below the turntable; the transport end of the lifting assembly can be arranged in one of the through holes; when the lifting assembly jacks up the sample jar, the jar opening of the sample jar is matched with the sealing assembly; the lifting end of the lifting assembly is fixedly connected with a gravity sensor; when the lifting assembly jacks up the sample jar, the gravity sensor measures the overall weight of the sample jar.

[0021] By adopting the above technical scheme, the various components of the blanking mechanism cooperate with each other to realize accurate blanking and weight control of the sample. First, the rotation of the turntable transports the sample jar to the blanking station, and the lifting assembly jacks up the sample jar through the through hole, so that the jar opening of the sample jar is matched with the sealing assembly. Then, the blanking pipeline delivers the sample into the sample jar, and the gravity sensor monitors the weight of the sample jar in real time. When the weight in the sample jar reaches the predetermined requirement, the blanking is stopped, the lifting assembly is lowered, and the sample jar returns to the turntable, thereby completing the blanking operation.

[0022] The blanking mechanism needs to cooperate with other mechanisms in the sampler, such as the turntable, the transportation mechanism, the cover opening mechanism, and the closing mechanism, etc. For example, the rotation of the turntable needs to be coordinated with the action of the lifting assembly to ensure that the sample jar can accurately reach the blanking station and perform the blanking operation. The cover opening mechanism and the closing mechanism need to open and close the cover of the sample jar before and after blanking, respectively, to ensure the smooth progress of blanking and the sealed preservation of the sample. The transportation mechanism is responsible for transporting the sample jar between various stations, and together with the blanking mechanism, it completes the entire sampling process.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The sample jar adopts a double-cover structure, with a large cover connecting the jar body and a small cover. The small cover blocks the end of the first channel when closed, forming a sealed cavity. In combination with components such as lock tongues, lock pins, and actuators, the sealing performance of the jar body is further enhanced, effectively preventing coal sample powder loss and moisture loss, ensuring the stability of sample quality during storage and transportation, and providing a reliable basis for subsequent accurate coal evaluation. For environmentally sensitive samples such as coal, good sealing performance can ensure the quality and representativeness of the sample, avoiding the influence of external air, moisture, and other factors on the quality of the coal sample.

[0025] 2. The sample jar adopts a multiple locking mechanism to ensure that the coal sample in the jar body remains sealed even under external pressure, vibration, or other adverse factors, effectively preventing sample leakage and harm to operators. For example, during transportation, even if subjected to bumps and vibrations, the sample jar can remain sealed, avoiding the scattering of coal dust, reducing irritation to the respiratory tract of operators, and reducing pollution to the working environment.

[0026] 3. The sampler is composed of a box body, a sample jar, a transportation mechanism, a turntable, a power source, etc., realizing a fully automated sampling process from the sample jar entering to the sample jar exiting. The transportation mechanism transports the sample jar to the sample jar entering station, the turntable rotates intermittently under the drive of the power source, and the sample jar sequentially passes through each station to complete unlocking, cover opening, blanking, locking, etc., and finally exits from the sample jar exiting station. The entire process does not require manual operation one by one, greatly saving time and labor costs, and improving the speed and efficiency of sampling.

[0027] 4. The box body is provided with multiple functional areas such as the sample jar entering station, the unlocking station, the cover opening station, the blanking station, the locking station, and the sample jar exiting station, etc. Each station has a specific mechanism responsible for the corresponding operation. For example, the unlocking mechanism of the unlocking station, the cover opening mechanism of the cover opening station, the blanking mechanism of the blanking station, and the closing mechanism, etc., make the entire sampling process proceed in an orderly manner. This clear division of labor design improves the reliability and stability of the system, facilitating monitoring and maintenance of each link.

[0028] 5、The blanking mechanism includes a blanking pipeline, a sealing assembly, a lifting assembly and other parts. The weight of the sample tank is monitored in real time through a gravity sensor, so that the amount of blanking can be accurately controlled, and the sample in the sample tank can reach the predetermined weight requirement. This function of accurately controlling the amount of blanking is very important for occasions that require accurate measurement of samples, and improves the accuracy and reliability of sampling.

[0029] 6、The small cover is repeatedly opened and closed in the sample collector through a mechanical structure, which ensures stability and high efficiency during sample collection. The use of mechanical structure makes the operation highly repeatable, providing a strong guarantee for continuous and accurate sample collection, reducing the failure of sample collection caused by cover operation failure; after sample collection is completed, the structure of the large and small covers and the tank body can be locked by external force of an external electromagnetic push rod. This locking method is very firm and can effectively prevent illegal opening of external mechanical force, ensuring the integrity and safety of sample collection, avoiding unauthorized contact or tampering of samples during transportation and storage; when the sample collector is returned to the sample collection room, it can be scanned by the hidden card and automatically unlocked, further improving the automation degree of the whole sample collection process, reducing the errors and time cost caused by manual intervention, and making the sample collection work more smooth and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application;

[0031] Figure 2 is a schematic diagram of the overall structure of embodiment 1 of the present application; Figure 2 different perspective structure;

[0032] Figure 3 is a schematic diagram of the structure of the sample tank in embodiment 1 of the present application;

[0033] Figure 4 is a schematic diagram of the exploded structure of the sample tank in embodiment 1 of the present application;

[0034] Figure 5 is a schematic diagram of the structure of the large cover in embodiment 1 of the present application;

[0035] Figure 6 is a schematic diagram of the overall structure of the actuator in embodiment 1 of the present application;

[0036] Figure 7 is a schematic diagram of the overall structure of embodiment 1 of the present application; Figure 2 A local enlarged view;

[0037] Figure 8 is a schematic diagram of the overall structure of embodiment 1 of the present application; Figure 2 B local enlarged view;

[0038] Figure 9 is a schematic diagram of the overall structure of embodiment 1 of the present application; Figure 2A local enlarged view at C;

[0039] Figure 10 is a schematic view of the closing mechanism of the embodiment 1 of the present application;

[0040] Figure 11 is a structural schematic view of the lifting assembly of the embodiment 1 of the present application;

[0041] Figure 12 is a schematic view of the embodiment 1 of the present application Figure 1 A local enlarged view at D.

[0042] BRIEF DESCRIPTION OF THE DRAWINGS: 1, box; 11, entering tank station; 12, unlocking station; 121, unlocking mechanism; 1211, mounting frame; 1212, magnetic card; 13, uncovering station; 131, uncovering mechanism; 1311, first fixed frame; 1312, first lever; 14, blanking station; 141, closing mechanism; 1411, second fixed frame; 1412, second lever; 1413, arc block; 142, blanking mechanism; 1421, blanking pipeline; 1422, sealing assembly; 143, lifting assembly; 1431, power piece; 1432, lever; 1433, support seat; 1434, top block; 1435, gravity sensor; 15, locking station; 151, first sensor; 152, third lever; 153, electromagnetic push rod; 154, second sensor; 155, spring column; 16, tank outlet station; 2, rotating disc; 21, through hole; 3, sample tank; 31, tank body; 311, second lock tongue; 312, second connecting part; 3121, boss; 32, large cover; 321, cover plate; 3211, through slot; 322, cover body; 323, first connecting part; 3231, hook; 324, lever; 3241, trigger part; 3242, limiting hook; 3243, limiting block; 325, pushing assembly; 3251, lock pin; 3252, slide rail; 3253, sliding block; 3254, lever plate; 3255, limiting hole; 3256, spring; 3257, pin hole; 326, mounting cavity; 3261, battery; 3262, control module; 3263, sensing module; 3264, actuator; 33, small cover; 331, lever rod; 332, first lock tongue; 333, lifting; 34, first channel; 35, lock hole; 4, transportation mechanism; 5, rotating shaft; 6, power source. DETAILED DESCRIPTION

[0043] The following will be described in detail below with reference to the accompanying drawings Figure 1 - the accompanying drawings Figure 12 The present application will be further described in detail.

[0044] The embodiment of the present application discloses a sampler.

[0045] Embodiment 1, refer to Figure 1 and Figure 2A sampler includes a box 1, a plurality of sample tanks 3, a rotating disc 2 rotatably connected to the box 1, a power source 6 for driving the rotating disc 2 to rotate, and a conveying mechanism 4 for conveying the sample tanks 3. The box 1 is provided with an inlet tank station 11, an unlocking station 12, a cover opening station 13, a material dropping station 14, a locking station 15, and an outlet tank station 16. In the embodiment, the conveying mechanism 4 is provided with two rollers for conveying the sample tanks 3 to the inlet tank station 11 and the outlet tank station 16. The conveying mechanism 4 is responsible for conveying the empty sample tanks 3 to the inlet tank station 11 and conveying the sample-filled sample tanks 3 from the outlet tank station 16. In the embodiment, the sample tanks 3 are manually loaded and unloaded. Alternatively, a mechanical arm can be used to automatically load and unload the sample tanks 3. The power source 6 drives the rotating disc 2 to rotate, thereby moving the sample tanks 3 between different stations. In the embodiment, the power source 6 is an electric motor. Alternatively, the power source 6 can be a hydraulic power source or a pneumatic power source. During the conveying process, the cover of the sample tank 3 needs to be locked to prevent the cover from being suddenly opened.

[0046] The conveying mechanism 4 conveys the sample tank 3 to the inlet tank station 11. A worker provides manual labor to load the sample tank 3 onto the rotating disc 2. The rotating disc 2 rotates to move the sample tank 3 to the unlocking station 12. The unlocking station 12 is provided with an unlocking mechanism 121 for unlocking the cover of the sample tank 3. After the sample tank 3 is unlocked, the rotating disc 2 moves the sample tank 3 to the cover opening station 13. The cover opening station 13 is provided with a cover opening mechanism 131 for opening the cover of the sample tank 3. The cover opening mechanism 131 opens the cover of the sample tank 3. The sample tank 3 is then moved to the material dropping station 14. The material dropping station 14 is provided with a material dropping mechanism 142 for dropping sample into the sample tank 3 and a closing mechanism 141 for closing the cover of the sample tank 3. The material dropping mechanism 142 drops sample into the sample tank 3. After the sample is dropped, the closing mechanism 141 closes the cover of the sample tank 3. When the sample tank 3 is moved to the locking station 15, the sample tank 3 is locked to prevent the cover from being opened. Only when a corresponding magnetic card 1212 is provided can the sample tank 3 be unlocked. Finally, the sample tank 3 is moved to the outlet tank station 16 and is conveyed away by the conveying mechanism 4.

[0047] Reference Figure 3 and Figure 4The sample tank 3 comprises a tank body 31, a large cover 32, and a small cover 33 rotatably connected to the large cover 32. A first connecting part 323 is arranged at a tank opening of the tank body 31. The large cover 32 is provided with a second connecting part 312 matched with the first connecting part 323. The first connecting part 323 and the second connecting part 312 are matched to realize the assembly and disassembly of the tank body 31 and the large cover 32. In the embodiment, the first connecting part 323 and the second connecting part 312 are connected in the form of buckling, and can also be connected in the form of clamping, plugging, threaded connection, bolt connection, etc. A boss 3121 is arranged at the tank opening of the tank body 31. A clamping hook 3231 is arranged at the bottom of the large cover 32, and the clamping hook 3231 is buckled with the boss 3121. The large cover 32 is provided with a first channel 34 in communication with the inside of the tank body 31. The first channel 34 is mainly used for matching with the blanking mechanism 142 to realize the sealing state during the filling process. In the embodiment, the first channel 34 is taken as an example in the form of a pipe and is fixedly connected with the large cover 32 by welding. The first channel 34 can also be a through hole 21 which is part of the large cover 32. The small cover 33 is arranged at the end of the first channel 34. The small cover 33 comprises a closed state and an open state. In the closed state, the small cover 33 plugs the end of the first channel 34, and the inside of the tank body 31 is a sealed cavity. In the open state, the small cover 33 deviates from the end of the first channel 34, and the inside of the tank body 31 is in communication with the outside.

[0048] Referring to Figure 4 The large cover 32 comprises a cover plate 321 and a cover body 322. An end surface of the cover body 322 is in communication with the first channel 34. The cover plate 321 is detachably connected with the top end of the cover body 322. In the embodiment, the cover plate 321 and the cover body 322 are taken as an example and are connected in the form of bolt connection, and can also be connected in the form of clamping, buckling, plugging, etc. The first channel 34 penetrates through the cover plate 321. The side surface of the cover plate 321, the inner wall of the cover body 322, and the outer wall of the first channel 34 jointly form an installation cavity 326.

[0049] Referring to Figure 3 and Figure 4The small cover 33 is fixedly connected with at least one first locking tongue 332, and the tank opening of the tank body 31 is provided with at least one second locking tongue 311. In the embodiment, the number of the first locking tongue 332 and the second locking tongue 311 is one. Both the first locking tongue 332 and the second locking tongue 311 are provided with a locking hole 35. The locking hole 35 of the first locking tongue 332 can be aligned with the locking hole 35 of the second locking tongue 311 with the rotation of the small cover 33. A pin hole 3257 is provided through the side wall of the large cover 32, and a locking pin 3251 is provided through the pin hole 3257. When the first locking tongue 332 is aligned with the second locking tongue 311, the locking pin 3251 can be inserted into the locking hole 35 of the first locking tongue 332 and the locking hole 35 of the second locking tongue 311, so as to lock the first locking tongue 332 and the second locking tongue 311. The end of the locking pin 3251 is fixedly connected with a pushing assembly 325 and an actuator 3624. In the embodiment, the actuator 3624 can limit the movement of the output end of the locking pin 3251. A spring 3256 is arranged between the output end of the pushing assembly 325 and the inner wall of the large cover 32. The spring 3256 applies a force to the pushing assembly 325, so as to force the locking pin 3251 to retract into the pin hole 3257. One side of the small cover 33 is provided with a raised portion 333. When the small cover 33 is closed, the raised portion 333 abuts against the first channel 34, so as to limit the further rotation of the small cover 33. The first locking tongue 332 is perpendicular to the side surface of the small cover 33

[0050] Reference Figure 5 The pushing assembly 325 includes a sliding rail 3252 fixedly connected to the large cover 32, a sliding block 3253 slidingly connected to the sliding rail 3252, and a push plate 3254 fixedly connected to the sliding block 3253. The cover plate 321 is provided with a through slot 3211, and the push rod is arranged through the through slot 3211. The sliding block 3253 is fixedly connected with the locking pin 3251, and the spring 3256 is sleeved with the locking pin 3251. One end of the spring 3256 abuts against the sliding block 3253, and the other end abuts against the inner wall of the large cover 32. The sliding block 3253 is provided with a limiting hole 3255. In the embodiment, the actuator 3624 is taken as an example of an electromagnetic push rod. When the electromagnetic push rod is powered on, the output end is retracted. When the electromagnetic push rod is powered off, the output end is reset and extended. When the end of the locking pin 3251 is retracted into the pin hole 3257, the limiting hole 3255 is misaligned with the output end of the actuator 3624. However, the output end of the actuator 3624 abuts against the side surface of the sliding block 3253 under the action of the reset member inside the actuator 3624. When the push plate 3254 is pushed, the locking pin 3251 extends to the maximum position of the pin hole 3257. At this time, the limiting hole 3255 is aligned with the output end of the actuator 3624. Under the action of the reset member inside the actuator 3624, the output end of the actuator 3624 extends into the limiting hole 3255, so as to lock the movement of the locking pin 3251. When the output end of the actuator 3624 is retracted, the sliding block 3253 is reset to the initial end under the action of the spring 3256, and the locking pin 3251 is retracted into the pin hole 3257.

[0051] Reference Figure 5The installation cavity 326 is provided with a battery 3261, a control module 3262 and an induction module 3263. In the embodiment, the control module 3262 is taken as an access control module 3262, which can receive corresponding IC card information and send instructions to an actuator 3624. The induction module 3263 is an induction end of the IC card. When the large cover 32, the small cover 33 and the sample tank 3 are locked, the corresponding IC card needs to be close to the induction module 3263. The induction module 3263 sends the read information to the control module 3262. The control module 3262 identifies whether the information has the permission to open the cover. The control module 3262 sends corresponding information to the actuator 3624, and the actuator 3624 executes according to the information.

[0052] With reference to Figure 4 and Figure 6 The small cover 33 is provided with at least one lever 331, which is mainly used to bear external driving force and apply the driving force to the small cover 33. In the embodiment, two levers 331 are arranged on the upper and lower sides of the small cover 33. The lever 331 is taken as a cylindrical body, which is fixed to the small cover 33 by welding. The lever 331 can also be fixed by screwing, clamping, buckling and the like. The small cover 33 can also be provided with a lever 331. The lever 331 is offset from the connection between the small cover 33 and the large cover 32. The large cover 32 is rotatably connected with a lever 324 at the end cover. The lever 324 is provided with a limiting hook 3242 and a trigger portion 3241. The lever 331 below the small cover 33 can abut against the side surface of the trigger portion 3241. The cover plate 321 is fixedly connected with a limiting block 3243. The rotation center of the lever 324 is located between the limiting block 3243 and the lever 331 below. The rotation direction of the lever is limited by the limiting block, so that the lever 324 can rotate in a predetermined direction when the trigger portion 3241 is rotated by external force.

[0053] With reference to Figure 7 The unlocking mechanism 121 includes a mounting frame 1211 fixedly connected with the tank 1 and a magnetic card 1212 fixedly connected to the mounting frame 1211. In the embodiment, the magnetic card 1212 is an IC card. The position of the magnetic card 1212 is pre-set by the mounting frame 1211, so that the magnetic card 1212 is close to the induction module 3263 of the sample tank 3. The sample tank 3 rotates with the turntable 2, so that the induction module 3263 can be close to the magnetic card 1212 for unlocking. In this way, the automatic unlocking of a large number of sample tanks 3 is realized.

[0054] With reference to Figure 8The uncovering mechanism 131 comprises a first fixing frame 1311 fixedly connected to the box 1, and a first pushing rod 1312 fixedly connected to the first fixing frame 1311. When the sample tank 3 enters the uncovering station 13, the first pushing rod 1312 abuts against the top pushing rod 331 of the small cover 33. The turntable 2 rotates intermittently. When the turntable 2 rotates again, the first pushing rod 1312 pushes the pushing rod 331 to one side relative to the sample tank 3, and the small cover 33 is opened.

[0055] With reference to Figure 9 And Figure 10 The closing mechanism 141 comprises a second fixing frame 1411 fixedly connected to the box 1, a second pushing rod 1412 fixedly connected to the second fixing frame 1411, and an arc-shaped block 1413 fixedly connected to the end of the second pushing rod 1412. When the sample tank 3 enters the blanking station 14, the small cover 33 is in an open state. In the process of opening the small cover 33, the pushing rod 331 at the bottom of the small cover 33 pushes the pushing piece 324, so that the pushing piece 324 rotates. When the sample tank 3 enters the blanking station 14, the trigger part 3241 of the pushing piece 324 abuts against the end of the second pushing rod 1412. With the rotation of the turntable 2 again, the trigger part 3241 moves along the arc-shaped block 1413, so that the pushing piece 324 rotates clockwise around point a. At this time, one side of the sliding groove 3242 pushes the pushing rod 331 to rotate around point b. The pushing rod 331 moves along the sliding groove 3242.

[0056] With reference to Figure 9 The blanking mechanism 142 comprises a blanking pipeline 1421 externally connected with a sample supply device, a sealing assembly 1422 fixedly connected to the end of the blanking pipeline 1421, and a lifting assembly 143 arranged in the box 1. The turntable 2 is provided with a plurality of positionally central symmetric through holes 21. When the sample tank 3 enters the blanking station 14, the axis of the blanking pipeline 1421, the axis of the through hole 21 and the axis of the sample tank 3 substantially coincide. Substantial coincidence refers to that the axes of the three coincide, and the distance between the axes of the latter three is not more than 5 cm.

[0057] With reference to Figure 11The lifting assembly 143 comprises a support base 1433 fixedly connected to the box 1, a lever 1432 rotatably connected to the support base 1433, a power element 1431 fixedly connected to the inner wall of the box 1, a top block 1434 fixedly connected to the end of the lever 1432, the output end of the power element 1431 abutting the other end of the lever 1432, and a gravity sensor 1435 fixedly connected to the top block 1434. The gravity sensor 1435 measures the overall weight of the sample tank 3 when the top block 1434 lifts the sample tank 3, and monitors the weight of the sample tank 3 in real time. When the weight in the sample tank 3 reaches a predetermined requirement, the blanking is stopped, the lifting assembly 143 is lowered, the sample tank 3 returns to the turntable 2, and the blanking operation is completed.

[0058] With reference to Figure 12 The blanking station 14 is provided with a first sensor 151. After the small cover 33 is turned to open, the first sensor 151 detects the edge of the opened small cover 33. The first sensor 151 is used to detect whether the opening cover mechanism 131 opens the small cover 33 to a proper state.

[0059] With reference to Figure 12 The locking station 15 is provided with a third rod 152, and the end of the third rod 152 is provided with a spring column 155. The other end of the spring column 155 is fixedly connected to the box 1. When the small cover 33 enters the locking station 15, the small cover 33 contacts the third rod 152. Under the continuous rotation of the turntable 2, the small cover 33 is turned to reset and close. The locking station 15 is also provided with an electromagnetic push rod 153 and a second sensor 154. After the small cover 33 is reset and closed to align, the push rod 331 aligns the detection end of the second sensor 154, indicating that the small cover 33 has been reset and closed to align. The electromagnetic push rod 153 is controlled, the electromagnetic push rod 153 pushes the push plate 3254, so that the small cover 33 is locked, the turntable 2 continues to rotate, the spring column 155 is bent, the small cover 33 pushes the third rod 152 to be deflected, so that the third rod 152 bypasses the small cover 33.

[0060] The implementation principle of the sampler according to an embodiment of the present application is as follows: after the transport mechanism 4 transports the sample tank 3 to the tank feeding station 11, the sample tank 3 is stably carried into the turntable 2 by manual carrying. The turntable 2 is driven by the power source 6 to rotate in a predetermined manner, and accurately moves the sample tank 3 to the unlocking station 12. The unlocking station 12 is provided with an unlocking mechanism 121 specially used for unlocking the locked state of the cover of the sample tank 3. When the sample tank 3 reaches the station, the magnetic card 1212 in the unlocking mechanism 121 is fixed in a suitable position by the mounting bracket 1211, close to the sensing module 3263 of the sample tank 3. After the sensing module 3263 receives the signal of the magnetic card 1212, it sends information to the control module 3262, which performs identification and judgment. If the unlocking condition is met, the control module 3262 sends an instruction to the actuator 3624. The actuator 3624 acts according to the instruction. When it is powered on, the output end is retracted. At this time, the push assembly 325 connected to the end of the locking pin 3251 moves under the action of the spring 3256, thereby realizing the unlocking operation of the cover of the sample tank 3.

[0061] After the sample tank is unlocked, the turntable 2 continues to rotate and moves to the cover opening station 13. When the sample tank 3 enters the cover opening station 13, the first lever 1312 fixedly connected to the first fixed frame 1311 abuts against the push rod 331 at the top end of the small cover 33. With the intermittent rotation of the turntable 2, the first lever 1312 pushes the push rod 331 to one side relative to the sample tank 3, and the push rod 331 below the small cover 33 interacts with the abutting portion of the push member 324 rotationally connected to the end cover of the large cover 32. Under the cooperation of the push member 324, the small cover 33 rotates around the rotating shaft 5 rotationally connected to the large cover 32 to open the cover, thereby preparing for the subsequent material falling operation. The rotating shaft 5 is eccentrically arranged in the small cover 33. When the push rod 331 is close to the rotating shaft 5, the force required to drive the small cover 33 to rotate is greater, but the driving stroke is smaller.

[0062] After the sample tank 3 is opened by the opening mechanism 131, it is moved to the dropping station 14. When the sample tank 3 enters the dropping station 14, the lifting assembly 143 under the rotating disc 2 starts to work. The output end of the power component 1431 abuts against the other end of the lever 1432, so that the lever 1432 drives the top block 1434 to rise. The transport end of the top block 1434 penetrates through the through hole 21 on the rotating disc 2 at the dropping station 14, and lifts the sample tank 3, so that the dropping pipeline 1421 extends into the first channel 34 on the large cover 32, and the sealing assembly 1422 fixedly connected to the end of the dropping pipeline 1421 seals the interface, so that a sealed space is formed during the dropping process, and material running is prevented. The gravity sensor 1435 monitors the weight of the sample tank 3 in real time, and sends a signal when the weight in the sample tank 3 reaches a predetermined requirement, so that the dropping mechanism 142 stops dropping. Subsequently, the closing mechanism 141 starts to work. In the process of opening the small cover 33, the push rod 331 at the bottom of the small cover 33 pushes the pushing component 324 to rotate. When the small cover 33 enters the dropping station 14, the trigger part 3241 of the pushing component 324 abuts against the end of the second push rod 1412 fixedly connected to the second fixed frame 1411. With the rotation of the rotating disc 2 again, the second push rod 1412 makes the small cover 33 close through the pushing component 324.

[0063] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A sample jar, characterized by: Includes a tank body (31), a large cover (32) installed at the opening of the tank body (31), and a small cover (33) rotatably connected to the large cover (32). The large cover (32) is provided with a first channel (34) communicating with the inside of the tank body (31). The small cover (33) is located at the end of the first channel (34). The small cover (33) includes a closed state and an open state. Closed state: The small cover (33) blocks the end of the first channel (34), and the inside of the tank (31) is a sealed cavity; Open state: The small cover (33) is offset from the end of the first channel (34), and the inside of the tank (31) is connected to the outside.

2. The sample jar of claim 1, wherein: The small cover (33) is fixedly connected to at least one first locking tongue (332), and the can body (31) is provided with at least one second locking tongue (311) at the can opening. The large cover (32) is slidably installed with a locking pin (3251) capable of inserting the first locking tongue (332) and / or the second locking tongue (311), a lever (3254) for pushing out the locking pin (3251), an actuator (3264) for keeping the locking pin (3251) in the extended state, and a spring (3256) for providing the retraction tendency force of the locking pin (3251). The lever (3254) extends out of the large cover (32).

3. The sample jar of claim 2, wherein: The cover (32) is also equipped with a control module (3262) and a sensing module (3263). The sensing module (3263) is used to receive the unlock signal and transmit it to the control module (3262). The control module (3262) controls the opening and closing of the actuator (3264). The control module (3262) is electrically connected to the sensing module (3263) and the actuator (3264).

4. The sample jar of claim 3, wherein: The small cover (33) is provided with at least one actuating lever (331) for rotating the small cover (33), and the actuating lever (331) is offset from the rotation center of the small cover (33); the large cover (32) is rotatably connected to an actuating member (324), the actuating member (324) is provided with a trigger part (3241) for maintaining contact with the actuating lever (331), and the trigger part (3241) is provided with a limiting hook (3242) for preventing the actuating lever (331) from disengaging.

5. A sampler for sampling the sample pot of claim 4, characterized by: The system includes a housing (1), several transport mechanisms (4), a turntable (2) rotatably connected inside the housing (1), a power source (6) for driving the turntable (2) to rotate, an unlocking mechanism (121) for unlocking the sample container (3), a lid opening mechanism (131) for opening the small lid (33), a material feeding mechanism (142) for feeding the sample into the sample container (3), and a closing mechanism (141) for closing the small lid (33). The transport mechanism (4) transports the sample container (3) to the turntable (2), and the turntable (2) rotates intermittently under the action of the power source (6), so that the sample container (3) operates between the unlocking mechanism (121), the lid opening mechanism (131), the material feeding mechanism (142), and the closing mechanism (141).

6. The sampler of claim 5, wherein: The unlocking mechanism (121) comprises a mounting frame (1211) fixedly connected to the box body (1), and a magnetic card (1212) fixedly connected to the mounting frame (1211); when the magnetic card (1212) is close to the induction module (3263), the induction module (3263) receives the signal of the magnetic card (1212) and sends a signal for unlocking to the control module (3262), and the control module (3262) releases the restriction on the cover.

7. The sampler of claim 6, wherein: The cover opening mechanism (131) comprises a first fixing frame (1311) fixedly connected to the box body (1), and a first push rod (1312) fixedly connected to the first fixing frame (1311); when the first push rod (1312) abuts against the push rod (331), the first push rod (1312) pushes the small cover (33) to rotate along with the rotation of the rotating disc (2).

8. The sampler of claim 7, wherein: The closing mechanism (141) comprises a second fixing frame (1411) fixedly connected to the box body (1), and a second push rod (1412) fixedly connected to the second fixing frame (1411); the second push rod (1412) can abut against the push element (324), and the second push rod (1412) pushes the small cover (33) to reset and close along with the rotation of the rotating disc (2).

9. The sampler of claim 8, wherein: The blanking mechanism (142) comprises a blanking pipeline (1421) externally connected with a sample supply device, a sealing assembly (1422) fixedly connected to the end of the blanking pipeline (1421), and a lifting assembly (143) arranged in the box body (1); the rotating disc (2) is provided with a plurality of positionally and centrally symmetrical through holes (21), the axis of the blanking pipeline (1421), the axis of the through hole (21) and the axis of the sample tank (3) substantially coincide.

10. The sampler of claim 9, wherein: The lifting assembly (143) is located below the rotating disc (2), the transportation end of the lifting assembly (143) can pass through one of the through holes (21), when the lifting assembly (143) jacks up the sample tank (3), the tank opening of the sample tank (3) is matched with the sealing assembly (1422), the lifting end of the lifting assembly (143) is fixedly connected with a gravity sensor (1435), and the gravity sensor (1435) measures the overall weight of the sample tank (3) when the lifting assembly (143) jacks up the sample tank (3).

Images