Automatic specimen mixing device

Abstract

The application provides a specimen automatic shaking device, and belongs to the field of experimental equipment. The specimen automatic shaking device comprises a fixing part, a swinging groove, an inclined guide groove, a turnover baffle and a pushing mechanism. The swinging groove is divided into a falling channel reciprocating along the width direction by a first partition plate and a second partition plate. When the swinging groove swings, the pushing mechanism is driven by an arc-shaped rack, the specimen is inserted into the inclined guide groove and then slides into a falling hole, the upper end is blocked by an elastic film, the lower end penetrates through the falling hole, at this time, with the swinging of the swinging groove, the arc-shaped rack drives the pushing mechanism to push the lower end of the specimen in the falling hole, so that the specimen rotates downward with the turnover baffle and freely falls into the swinging groove from the upper end opening; with the reciprocating swing of the swinging groove, the specimen falls in the reciprocating falling channel, the shaking of the specimen is realized, the requirements for lofting and sampling are reduced, no other sensors and controllers are needed for control, the cost is reduced, the reliability is improved, and the later maintenance is more convenient.

Description

Technical Field

[0001] This application belongs to the field of experimental equipment technology, and more specifically, relates to an automatic specimen mixing device. Background Technology

[0002] For specimens such as blood collection tubes, it is often necessary to shake them well before use. Taking blood collection tubes as an example, there are currently two methods of shaking: one is manual shaking, and the other is machine shaking.

[0003] Manual shaking requires the operator to manually shake the blood collection tube, which is inefficient. Furthermore, manual shaking lacks precise control over the number of shakes and angle, leading to significant variations in the mixing effect. Moreover, for large batches of samples, manual shaking is extremely wasteful of manpower, and it is now rarely used for large-volume sample collection.

[0004] Machine shaking can ensure consistent mixing of all blood collection tubes by controlling the angle and number of shakes, and can mix a large number of tubes at once. However, machine shaking still requires the operator to manually place each specimen accurately into a fixed position (usually the various fixing holes of the test tube rack) and manually remove each specimen one by one after shaking, which is a cumbersome operation.

[0005] The inventors of this application proposed a shaking device that uses a swinging motion for mixing. However, to ensure the mixing effect, this device requires an additional controller and sensor, and a control program to control the specimens to fall one by one, increasing system complexity and resulting in higher costs. Moreover, sensor mis-triggering and control program bugs can lead to operational errors, and repair is relatively difficult. Therefore, the inventors have made further improvements to the device. Summary of the Invention

[0006] In view of this, the present application provides an automatic specimen shaking device to solve the technical problems of the prior art, which are that traditional machine shaking and manual sample placement and sampling operations are cumbersome, while shaking devices that use a swinging motion have poor reliability and high cost.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows: On the one hand, an automatic specimen mixing device is provided, comprising: Fixing part; The swing groove is rotatably connected to the fixed part at its upper end, and the upper opening is suitable for receiving specimens. It is provided with a first partition and a second partition inside, and the first partition and the second partition divide the swing groove into a reciprocating falling channel along the width direction. The swing groove swings back and forth so that the specimen falls along the falling channel. The inclined guide groove has an elongated slot suitable for specimen insertion. The lower end of the elongated slot is provided with a drop hole opposite to the upper opening of the swing groove. The lower end of the drop hole is provided with an elastic membrane. The elastic membrane blocks part of the lower opening of the drop hole so that when the specimen falls along the drop hole, the upper end is stuck on the elastic membrane and the lower end passes through the drop hole. A flip-up baffle is located on one side below the drop hole, with its rotating shaft higher than the lower end of the specimen in the drop hole; The pushing mechanism is located on the other side below the drop hole, below the pivot of the flipping baffle, and is adapted to push the lower end of the specimen in the drop hole toward the flipping baffle so that the flipping baffle flips the specimen downward and the upper end of the specimen breaks through the elastic membrane; The swing groove is equipped with an arc-shaped rack with the pivot as the center of the arc. When the swing groove swings, the pushing mechanism is driven by the arc-shaped rack.

[0008] In some embodiments, the pushing mechanism includes: The gear set meshes with the arc-shaped rack; The push rack meshes with the gear set and is driven to extend and retract by the gear set; A push-top groove is provided on the push-top rack and protrudes from the front end of the push-top rack. The front wall pushes the lower end of the specimen in the drop hole toward the flipping baffle, so that the flipping baffle flips the specimen into the push-top groove. The push-top groove guides the specimen to the upper opening of the swing groove.

[0009] In some embodiments, the upper end of the swing groove is provided with an arc-shaped hole, and one side of the arc-shaped hole forms the arc-shaped rack; the pushing mechanism is provided on the fixed part and passes through the arc-shaped hole.

[0010] In some embodiments, the side of the flipping baffle facing the specimen is concave to limit the displacement of the specimen in the direction of the flipping baffle's rotation axis; the upper end of the front wall of the push groove is provided with an arc-shaped groove to limit the displacement of the specimen in the direction of the flipping baffle's rotation axis.

[0011] In some embodiments, limiting side plates are provided on the two side walls of the push groove extending upwards, and the two limiting side plates are sandwiched on both sides of the lower end of the specimen in the elongated slot and the drop hole.

[0012] In some embodiments, a plurality of first partitions are distributed vertically along one side of the swing groove, and a plurality of second partitions are distributed vertically along the other side of the swing groove, with each first partition and each second partition being staggered. The first partition is oscillating to adjust the tilt angle between the first partition and the width direction of the swing groove; the second partition is oscillating to adjust the tilt angle between the second partition and the width direction of the swing groove.

[0013] In some embodiments, the end of the first partition away from the second partition is fixed to the bottom surface of the sway groove via a rotating shaft, and the end closer to the second partition is connected to the bottom surface of the sway groove via an adjustment structure. The adjustment structure is adjusted along the axial direction of the sway groove to adjust the tilt angle of the first partition.

[0014] In some embodiments, the bottom surface of the swing groove is provided with an adjustment elongated hole along the axial direction of the swing groove, and the end of the first partition plate near the second partition plate is provided with a fixing rod that passes through the adjustment elongated hole. The fixing rod is threaded with a locking nut for fixing the first partition plate to the bottom surface of the swing groove.

[0015] In some embodiments, side baffles are provided on both sides of the inclined guide groove, and the two side baffles form an input channel above the elongated slot hole with a width greater than that of the elongated slot hole. The distance from the inner wall of the input channel to the corresponding inner wall of the elongated slot hole is less than the radius of the upper end of the specimen.

[0016] In some embodiments, the automatic specimen shaking device is further provided with a conveyor belt, which is arranged along the swing direction of the swing trough, and the lower end of the swing trough is opposite to the conveyor belt; The conveyor belt is equipped with a receiving hopper, the upper opening of which is opposite to the lower end of the swing trough, and the lower opening of which is opposite to the conveyor belt.

[0017] The beneficial effects of the automatic specimen shaking device provided in this application embodiment are as follows: Compared with the prior art, the automatic specimen shaking device in this application embodiment inserts the specimen into the long slot of the inclined guide groove, the specimen slides down the inclined guide groove into the drop hole, the specimen falls down along the drop hole, the upper end is blocked by the elastic membrane, and the lower end passes through the drop hole. At this time, as the swing groove swings, the arc rack drives the pushing mechanism to push the lower end of the specimen in the drop hole, so that the specimen is attached to the flip baffle and gradually rotates downward with the flip baffle, so that the upper end of the specimen breaks through the elastic membrane, and then the specimen falls freely from the upper opening into the swing groove. The specimen is placed in a swing tank and falls in a reciprocating drop channel as the swing tank swings back and forth, thus achieving the purpose of shaking the specimen evenly. After shaking is complete, the specimen falls directly from the bottom of the swing tank. Each swing of the gyratory groove causes the pushing mechanism to drop one specimen. The sliding process of each specimen is the same, ensuring consistent shaking effect. Moreover, during the placement process, the specimen only needs to be inserted into the long slot hole. After shaking, the specimen falls directly, reducing the requirements for placement and sampling and greatly simplifying the operation. Furthermore, no other sensors or controllers are required, which reduces costs, improves reliability, and makes subsequent maintenance more convenient. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A perspective view of the automatic specimen mixing device provided in the embodiments of this application; Figure 2 for Figure 1 Front view of the automatic mixing device for the winning specimen; Figure 3 for Figure 1 Rear view of the automatic shaking device for the winning specimen; Figure 4 for Figure 3 Enlarged view of the inclined guide groove, pushing mechanism and flipping baffle at point A; Figure 5 for Figure 3 A diagram showing the state of the specimen before the pushing mechanism pushes it up. Figure 6 for Figure 1 A schematic diagram of the internal structure of the automatic specimen shaking device in the image, with the pusher groove hidden; Figure 7 for Figure 1 Rear view of the swaying trough of the automatic shaking device for the winning specimen.

[0020] The following are the labeling elements in the figure: 1-Fixing part; 11-Arc plate; 111-Arc rack; 14-Inclined guide groove; 141-Long slot hole; 142-Fall hole; 143-Elastic membrane; 144-Side baffle; 15-Flipping baffle; 16-Pushing mechanism; 161-Gear set; 162-Push rack; 163-Push groove; 164-Arc groove; 165-Limiting side plate; 2-Swing groove; 3-First partition; 31-Adjusting elongated hole; 4-Second partition; 5-Power plate; 51-Connecting rod; 6-Conveyor belt; 61-Receiving hopper; 7-Specimen. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0025] Please refer to the following: Figures 1 to 7 The automatic specimen mixing device provided in the embodiments of this application will now be described. An automatic specimen mixing device includes: Fixing part; The swing trough is rotatably connected to the fixed part at the upper end, and the upper opening is suitable for receiving specimens. It is provided with a first partition and a second partition inside, which divide the swing trough into a reciprocating falling channel along the width direction. The swing trough swings back and forth to make the specimen fall along the falling channel. The inclined guide groove has a long slot suitable for specimen insertion. The lower end of the long slot is provided with a drop hole opposite to the upper opening of the swing groove. The lower end of the drop hole is provided with an elastic membrane. The elastic membrane blocks part of the lower opening of the drop hole so that when the specimen falls along the drop hole, the upper end is stuck on the elastic membrane and the lower end passes through the drop hole. The flip-up baffle is located on one side below the drop hole, with the pivot point higher than the lower end of the specimen in the drop hole; The pushing mechanism, located on the other side below the drop hole and lower than the rotating shaft of the flipping baffle, is adapted to push the lower end of the specimen in the drop hole toward the flipping baffle so that the flipping baffle flips the specimen downward and the upper end of the specimen breaks through the elastic membrane. The swaying groove is equipped with an arc-shaped rack with the rotating shaft as the center of the arc. When the swaying groove swings, the pushing mechanism is driven by the arc-shaped rack.

[0026] Compared with the prior art, the automatic specimen shaking device of this application embodiment inserts the specimen into the long slot of the inclined guide groove. The specimen slides down the inclined guide groove into the drop hole. The specimen falls down the drop hole, and the upper end is blocked by the elastic membrane. The lower end passes through the drop hole. At this time, as the swing groove swings, the arc rack drives the pushing mechanism to push the lower end of the specimen in the drop hole, so that the specimen is attached to the flip baffle and gradually rotates downward with the flip baffle, so that the upper end of the specimen breaks through the elastic membrane. Then the specimen falls freely from the upper opening into the swing groove. The specimen is placed in a swing tank and falls in a reciprocating drop channel as the swing tank swings back and forth, thus achieving the purpose of shaking the specimen evenly. After shaking is complete, the specimen falls directly from the bottom of the swing tank. Each time the swinging trough swings, the pushing mechanism pushes one specimen down, and all specimens slide down in the same way, ensuring consistent shaking effect. Moreover, when placing the specimen, it is only necessary to insert the specimen into the long slot hole. After shaking, the specimen falls directly down, reducing the requirements for placement and sampling and greatly simplifying the operation. In addition, no other sensors and controllers are required, which reduces costs, improves reliability, and makes later maintenance more convenient.

[0027] In practical implementation, the fixed part can be a sampling workbench, such as a blood collection workbench, allowing the operator to directly shake the specimen after sampling. Furthermore, the fixed part also includes a power plate with an eccentric shaft connected to an arc-shaped plate via a connecting rod, driving the swing trough to oscillate back and forth. More specifically, the power plate is driven by a motor, and an eccentric shaft is mounted on it. The connecting rod is hinged at both ends to the eccentric shaft and the arc-shaped plate, respectively. When the power plate rotates, it reciprocates through the connecting rod, pushing the arc-shaped plate to oscillate, thus causing the swing trough to oscillate back and forth.

[0028] The inclined guide groove is fixed below the fixing part and is set at an angle. The lower end of the elongated groove is enlarged to form a drop hole, allowing the specimen to slide down the inclined guide groove into the drop hole. An elastic membrane is provided at the lower end of the drop hole. Specifically, the drop hole is a vertical circular hole, and the elastic membrane is U-shaped to seal both sides of the lower opening of the drop hole, so that when the specimen falls from the drop hole, the upper sides of the specimen can be caught on the elastic membrane.

[0029] The swing groove is located below the inclined guide groove, so that the drop hole of the inclined guide groove is directly opposite the upper opening of the swing groove. The upper end of the swing groove is mounted on the lower part of the fixed part via a rotating shaft structure, allowing the swing groove to swing to both sides. The swing groove can be a relatively wide U-shaped groove, and its upper end can be a cylindrical open opening.

[0030] The first and second baffles inside the swing groove are distributed on both sides of the swing groove. Multiple first baffles are arranged vertically on one side of the swing groove, and multiple second baffles are arranged vertically on the other side of the swing groove. The first and second baffles are staggered, thus forming a reciprocating descent channel along the width of the swing groove. Furthermore, the lower end of the swing groove is tilted forward so that the specimen slides down the bottom surface of the swing groove, which slows down the specimen's descent speed, prevents damage from collisions, and allows the specimen to be more thoroughly shaken during the descent.

[0031] Each first partition is horizontal or slightly inclined, and each second partition is horizontal or slightly inclined. When the swing chute swings to the first side, the first partitions are horizontally inclined, causing the specimens on the first partitions to slide down to the adjacent second partitions below; when the swing chute swings to the second side, the second partitions are horizontally inclined, causing the specimens on the second partitions to slide down to the adjacent first partitions below. The specimens are shaken evenly during this repeated sliding process.

[0032] The flipping baffle and the pushing mechanism are located on opposite sides below the drop hole. The flipping baffle is mounted on the end of the inclined guide groove via a bracket, with its pivot point higher than the lower end of the specimen in the drop hole. This allows the flipping baffle to flip the specimen downwards when the pushing mechanism pushes the lower end of the specimen towards it. Specifically, the pivot point of the flipping baffle is equipped with a torsion spring, enabling the flipping baffle to automatically rotate back to its initial position when no external force is applied.

[0033] The pushing mechanism pushes the specimen against the flipping baffle, causing the specimen to rotate along the rotation trajectory of the flipping baffle. This allows for precise control of the specimen falling into the swing groove, preventing it from falling randomly under the push of the mechanism and failing to reach the swing groove.

[0034] The pushing mechanism is driven by an arc-shaped rack on the swing groove, linking the pushing mechanism with the swing groove. In use, multiple specimens are inserted into the elongated slots of the inclined guide groove and slide down one by one into the drop holes. When the swing groove swings forward, the pushing mechanism pushes the first specimen, causing it to fall onto the first partition of the swing groove. Then, when the swing groove swings in the reverse direction, the pushing mechanism retracts, and the first specimen slides down onto the second partition. Afterward, when the swing groove swings forward again, the pushing mechanism pushes the second specimen, causing it to fall onto the first partition of the swing groove. When the swing groove swings in the reverse direction again, the pushing mechanism retracts, and the second specimen slides down onto the second partition. This cycle repeats, ensuring that only one specimen is on each first and second partition at any given time, preventing collisions and ensuring that the sliding process is identical for each specimen, guaranteeing the safety and uniform shaking of each specimen.

[0035] Regarding the specimen used in this embodiment, typically the upper end of the specimen is a cap and the lower end is a bottle body, with the diameter of the cap being larger than the diameter of the bottle body. Of course, for specimens with other structures, as long as the upper diameter is larger than the lower diameter, the automatic specimen shaking device of this embodiment can also be used.

[0036] Please see Figures 4 to 6 As a specific embodiment of the automatic specimen mixing device provided in this application, the pushing mechanism includes: The gear set meshes with the arc-shaped rack; The rack is pushed up and meshes with the gear set, and is driven to extend and retract by the gear set; The push-top groove is located on the push-top rack and protrudes from the front end of the push-top rack. The front wall pushes the lower end of the specimen in the drop hole toward the flipping baffle, so that the flipping baffle flips the specimen into the push-top groove. The push-top groove guides the specimen to the upper opening of the swing groove.

[0037] In this embodiment, the front wall of the pusher groove pushes the specimen, allowing it to flip backward and fall into the pusher groove. The pusher groove then accurately guides the specimen to the upper opening of the swing groove. During operation, the state of the pusher groove before pushing the specimen is described in [reference needed]. Figure 5 Driven by the pusher rack, the pusher groove moves forward, beginning to push the specimen (see specimen). Figure 4 Then, the pusher groove moves forward further, allowing the specimen to be released from the drop hole and automatically fall into the pusher groove, then fall down along the pusher groove to the upper opening of the swing groove.

[0038] In practical implementation, the gear set can consist of two coaxially fixed gears: one meshing with an arc-shaped rack, and the other meshing with a pusher rack. By adjusting the gear ratio of the two gears, when the swing groove swings forward to its limit, the pusher rack of the pusher mechanism can push the specimen down precisely; conversely, when the swing groove swings backward to its limit, the pusher rack of the pusher mechanism can return to its original position without affecting the specimen's slide down the long slot into the drop hole. The gear set can also employ other forms of multi-gear structures to achieve the functions of power transmission and speed adjustment.

[0039] The push rack is horizontally positioned and can move horizontally back and forth under the drive of the gear set. The push groove is fixed to the side of the push rack by two L-shaped brackets, and its front end protrudes from the front end of the push rack. The slot of the push groove is generally vertically positioned, but it can also be inclined to a certain extent, so as to guide the specimen to the upper opening of the swing groove.

[0040] Please see Figure 6 As a specific embodiment of the automatic specimen shaking device provided in this application, the upper end of the shaking groove is provided with an arc-shaped hole, and one side of the arc-shaped hole forms an arc-shaped rack; the pushing mechanism is provided in the fixed part and passes through the arc-shaped hole.

[0041] In this embodiment, the overall structure is more compact, reducing space occupation.

[0042] Please see Figures 4 to 6 As a specific embodiment of the automatic specimen shaking device provided in this application, the side of the flip baffle facing the specimen is concave to limit the displacement of the specimen in the direction of the flip baffle's rotation axis; the upper end of the front wall of the push groove is provided with an arc-shaped groove to limit the displacement of the specimen in the direction of the flip baffle's rotation axis.

[0043] In this embodiment, the concave surface of the flipping baffle and the arc-shaped groove at the upper end of the front wall of the push-top groove can limit the specimen and prevent the specimen from coming out between the flipping baffle and the front wall of the push-top groove when it is pushed.

[0044] In practice, the side of the flip-over baffle facing the specimen is an arc-shaped cylindrical surface, and the arc-shaped groove at the upper end of the front wall of the push-top groove is rounded.

[0045] Please see Figure 4 and Figure 5 As a specific embodiment of the automatic specimen shaking device provided in this application, the two side walls of the push-top groove extend upward and are provided with limiting side plates, and the two limiting side plates are sandwiched on both sides of the lower end of the specimen in the long slot hole and the drop hole.

[0046] In this embodiment, the limiting side plate can further prevent the specimen from falling to both sides of the push-top groove during the process of flipping the specimen into the push-top groove.

[0047] In practice, as the specimen slides down the long slot of the inclined guide groove, it passes between two limiting side plates until it reaches the drop hole. When the pusher groove pushes the specimen in the drop hole forward, the two limiting side plates gradually clamp onto both sides of the specimen in the drop hole.

[0048] Please see Figure 1 and Figure 2 As a specific embodiment of the automatic specimen shaking device provided in this application, a plurality of first partitions are distributed vertically along one side of the shaking groove, a plurality of second partitions are distributed vertically along the other side of the shaking groove, and each first partition and each second partition are staggered. The first partition is oscillating to adjust the tilt angle between the first partition and the oscillating groove in the width direction; the second partition is oscillating to adjust the tilt angle between the second partition and the oscillating groove in the width direction.

[0049] In this embodiment, the falling speed of the specimen along the first and second partitions can be controlled by adjusting the tilt angle between the first partition and the width direction of the swing groove and the tilt angle between the second partition and the width direction of the swing groove, according to the size, weight and other specifications of the specimen. This avoids the specimen being unable to slide from the first partition to the second partition or from the second partition to the first partition during one swing of the swing groove, thus preventing the specimen from being stuck on a certain first or second partition.

[0050] As a specific embodiment of the automatic specimen shaking device provided in this application, the end of the first partition away from the second partition is fixed to the bottom surface of the swing groove via a rotating shaft, and the end close to the second partition is connected to the bottom surface of the swing groove via an adjustment structure. The adjustment structure is adjusted along the axial direction of the swing groove to adjust the tilt angle of the first partition.

[0051] Please see Figure 7 As a specific embodiment of the automatic specimen shaking device provided in this application, the bottom surface of the shaking groove is provided with an adjustment elongated hole along the axial direction of the shaking groove, and the end of the first partition plate near the second partition plate is provided with a fixing rod that passes through the adjustment elongated hole. The fixing rod is threaded with a locking nut for fixing the first partition plate to the bottom surface of the shaking groove.

[0052] In practical implementation, an ear plate is provided at the end of the first partition away from the second partition. This ear plate is fitted against the bottom surface of the swing trough, and a bolt passes through the ear plate and the bottom surface of the swing trough to form a rotatable connection. An ear plate is also provided at the end of the first partition closer to the second partition. This ear plate is fitted against the bottom surface of the swing trough, and the adjusting elongated hole on the bottom surface of the swing trough is opposite to the ear plate. A bolt is used as a fixing rod, passing through the ear plate and the adjusting elongated hole on the bottom surface of the swing trough, and is locked in place by a lock nut. The lock nut on the fixing rod can be loosened, thereby adjusting the height of the end of the first partition closer to the second partition, thus adjusting the tilt angle of the first partition relative to the width direction of the swing trough.

[0053] Similarly, the second partition can be adjusted using the same structure, which will not be elaborated here.

[0054] As a further optimization of the above embodiments, the first partition is inclined, with the end farther from the second partition higher and the end closer to the second partition lower; the second partition is also inclined, with the end farther from the first partition higher and the end closer to the first partition lower. In this embodiment, the sample can slide more easily from the first or second partition, avoiding jamming. In specific implementation, adjacent first and second partitions are arranged in an inverted "V" shape.

[0055] As a further optimization of the above embodiment, the first partition is divided into two segments, with the slope of the segment farther from the second partition being greater than that of the segment closer to the second partition; the second partition is also divided into two segments, with the slope of the segment farther from the first partition being greater than that of the segment closer to the first partition. In this embodiment, during the oscillation of the swing tank, if the sample slides onto the segment of the first partition farther from the second partition, the sample is relatively far from the second partition, and the slope of the segment of the first partition farther from the second partition is larger, which allows the sample to slide towards the second partition more quickly, avoiding the situation where the sample cannot slide onto the second partition and can only slide back and forth on the first partition. Similarly, the larger slope of the segment of the second partition farther from the first partition also avoids the situation where the sample cannot slide onto the first partition and can only slide back and forth on the second partition.

[0056] In practice, the first partition is bent in the middle to form two areas with different slopes, and the second partition is bent in the middle to form two areas with different slopes.

[0057] Please see Figure 6 As a specific embodiment of the automatic specimen mixing device provided in this application, the inclined guide groove is provided with side baffles on both sides. The two side baffles form an input channel with a width greater than that of the long strip groove above the long strip groove hole. The distance from the inner wall of the input channel to the corresponding inner wall of the long strip groove hole is less than the radius of the upper end of the specimen.

[0058] In this embodiment, the width of the insertion channel is greater than that of the elongated slot, making specimen insertion more convenient. After the specimen is inserted into the insertion channel, it falls down the insertion channel into the elongated slot. However, because the width of the insertion channel is greater than that of the elongated slot, there is a step between the inner wall of the insertion channel and the corresponding inner wall of the elongated slot. Therefore, by setting the distance between the inner wall of the insertion channel and the corresponding inner wall of the elongated slot to be less than the radius of the upper end of the specimen, the specimen will automatically roll into the elongated slot even if it falls onto the step.

[0059] Please see Figures 1 to 3 As a specific embodiment of the automatic specimen shaking device provided in this application, the automatic specimen shaking device is further provided with a conveyor belt, which is arranged along the swing direction of the swing trough, and the lower end of the swing trough is opposite to the conveyor belt. The conveyor belt is equipped with a receiving bucket, the upper opening of which is opposite to the lower end of the swing trough, and the lower opening of which is opposite to the conveyor belt.

[0060] In this embodiment, after the specimen has been shaken, it slides directly from the bottom of the swaying trough onto the conveyor belt and is then transported directly to the subsequent testing station by the steering wheel, further reducing manual operation. The receiving hopper ensures that the specimen falls accurately onto the conveyor belt.

[0061] In practice, the opening at the top of the receiving hopper covers the lower end of the swing trough's range of motion. The conveyor belt is driven by a motor, and baffles are installed on both sides of the conveyor belt to prevent specimens from falling off.

[0062] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic specimen mixing device, characterized in that, include: Fixing part; The swing groove is rotatably connected to the fixed part at its upper end, and the upper opening is suitable for receiving specimens. It is provided with a first partition and a second partition inside, and the first partition and the second partition divide the swing groove into a reciprocating falling channel along the width direction. The swing groove swings back and forth so that the specimen falls along the falling channel. The inclined guide groove has an elongated slot suitable for specimen insertion. The lower end of the elongated slot is provided with a drop hole opposite to the upper opening of the swing groove. The lower end of the drop hole is provided with an elastic membrane. The elastic membrane blocks part of the lower opening of the drop hole so that when the specimen falls along the drop hole, the upper end is stuck on the elastic membrane and the lower end passes through the drop hole. A flip-up baffle is located on one side below the drop hole, with its rotating shaft higher than the lower end of the specimen in the drop hole; The pushing mechanism is located on the other side below the drop hole, below the pivot of the flipping baffle, and is adapted to push the lower end of the specimen in the drop hole toward the flipping baffle so that the flipping baffle flips the specimen downward and the upper end of the specimen breaks through the elastic membrane; The swing groove is provided with an arc-shaped rack with the rotating shaft as the center of the arc. When the swing groove swings, the pushing mechanism is driven by the arc-shaped rack. When the swing trough swings to the first side, the first partition tilts horizontally, causing the specimen on the first partition to slide down to the adjacent second partition below; When the swing trough swings to the second side, the second partition tilts horizontally, causing the specimen on the second partition to slide down to the adjacent first partition below; The pushing mechanism includes: The gear set meshes with the arc-shaped rack; The push rack meshes with the gear set and is driven to extend and retract by the gear set; A push-top groove is provided on the push-top rack and protrudes from the front end of the push-top rack. The front wall pushes the lower end of the specimen in the drop hole toward the flipping baffle, so that the flipping baffle flips the specimen into the push-top groove. The push-top groove guides the specimen to the upper opening of the swing groove. The side of the flipping baffle facing the specimen is concave to limit displacement of the specimen in the direction of the flipping baffle's rotation axis; the upper end of the front wall of the push groove is provided with an arc-shaped groove to limit displacement of the specimen in the direction of the flipping baffle's rotation axis. The inclined guide groove is provided with side baffles on both sides. The two side baffles form an input channel above the elongated slot hole with a width greater than that of the elongated slot hole. The distance from the inner wall of the input channel to the corresponding inner wall of the elongated slot hole is less than the radius of the upper end of the specimen.

2. The automatic specimen mixing device as described in claim 1, characterized in that, The upper end of the swing groove is provided with an arc-shaped hole, and one side of the arc-shaped hole forms the arc-shaped rack; the pushing mechanism is located on the fixed part and passes through the arc-shaped hole.

3. The automatic specimen mixing device as described in claim 1, characterized in that, Limiting side plates extend upward from both sides of the push groove, and the two limiting side plates are sandwiched on both sides of the lower end of the specimen in the elongated slot and the drop hole.

4. The automatic specimen mixing device as described in claim 1, characterized in that, Multiple first partitions are distributed vertically along one side of the swing groove, and multiple second partitions are distributed vertically along the other side of the swing groove, with each first partition and each second partition being staggered. The first partition is oscillating to adjust the tilt angle between the first partition and the width direction of the swing groove; the second partition is oscillating to adjust the tilt angle between the second partition and the width direction of the swing groove.

5. The automatic specimen mixing device as described in claim 4, characterized in that, The end of the first partition away from the second partition is fixed to the bottom surface of the swing groove via a rotating shaft, and the end closer to the second partition is connected to the bottom surface of the swing groove via an adjustment structure. The adjustment structure is adjusted along the axial direction of the swing groove to adjust the tilt angle of the first partition.

6. The automatic specimen mixing device as described in claim 5, characterized in that, The bottom surface of the swing groove is provided with an adjustment elongated hole along the axial direction of the swing groove. The end of the first partition plate near the second partition plate is provided with a fixing rod that passes through the adjustment elongated hole. The fixing rod is threaded with a locking nut for fixing the first partition plate to the bottom surface of the swing groove.

7. The automatic specimen mixing device as described in claim 1, characterized in that, The automatic specimen shaking device is also equipped with a conveyor belt, which is arranged along the swing direction of the swing trough, and the lower end of the swing trough is opposite to the conveyor belt; The conveyor belt is equipped with a receiving hopper, the upper opening of which is opposite to the lower end of the swing trough, and the lower opening of which is opposite to the conveyor belt.

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