A sample transport device

Abstract

The utility model belongs to sample transfer technical field discloses a kind of sample transfer device. Chassis component includes frame, driving part, front wheel and rear wheel, front wheel is rotatably connected in the front of frame, rear wheel is rotatably connected in the rear of frame, driving part is set on frame and is used to drive front wheel rotation, and front wheel is pneumatic tire;Transfer case is fixed on frame, and transfer case includes box, first box door, second box door, baffle and non-slip mat, the top of box is provided with first taking and placing opening, the side of box is provided with second taking and placing opening, first box door is hinged to box and is used to open and close first taking and placing opening, and second box door is hinged to box and is used to open and close second taking and placing opening;The inner chamber of box is detachably provided with baffle, and non-slip mat is laid on baffle upper surface, for directly supporting and fixing sample, to solve the problem that sample transfer process is easily led to breakage due to vibration, inconvenient operation and sample in box lack effective fixation and possibly produce damage or pollution.

Description

Technical Field

[0001] This utility model relates to the field of sample transfer technology, and in particular to a sample transfer device. Background Technology

[0002] In the tobacco production industry, the transfer of samples (such as tobacco leaves, shredded tobacco, and finished cigarettes) is a fundamental and frequent operational step. These samples typically need to be moved between laboratories, production workshops, storage areas, and tasting locations for quality testing, physicochemical analysis, or sensory evaluation. Therefore, ensuring the integrity of samples during transfer and preventing changes in their physicochemical properties due to external environment or mechanical vibration is crucial for guaranteeing the accuracy and impartiality of test results.

[0003] Currently, the industry commonly uses handcarts or ordinary flatbed carts for such short-distance transport. Firstly, most devices use solid rubber wheels or hard plastic wheels, which have poor shock absorption performance, causing severe vibrations and bumps when passing through workshop floor seams, tracks, or slightly uneven surfaces. This continuous vibration can easily lead to damage to the fragile tobacco leaf structure, delamination of tobacco shreds, or deformation of the cigarette shape, directly affecting the representativeness of subsequent sample testing. Secondly, common transport boxes usually only have an opening at the top, requiring vertical loading and unloading of samples, limiting operating space. When the transport box is parked in a confined space or close to other equipment, the top opening is easily blocked, making storage and retrieval operations extremely inconvenient and inefficient. Furthermore, the interior of the box is often a hollow structure or only has simple fixed shelves, lacking effective limiting and protective designs. During start-up, braking, or turning, samples are prone to sliding, shifting, or even colliding within the box, potentially causing physical damage and cross-contamination between different samples. Utility Model Content

[0004] The purpose of this utility model is to provide a sample transfer device to solve the problems in the prior art where sample transfer is easily damaged by vibration, inconvenient to store and retrieve, and samples in the box may be damaged or contaminated due to lack of effective fixation. This device improves the stability of the transfer process, ease of operation, and reliability of sample protection.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A sample transfer device, comprising:

[0007] The chassis assembly includes a frame, a drive unit, a front wheel, and a rear wheel. The front wheel is rotatably connected to the front of the frame, and the rear wheel is rotatably connected to the rear of the frame. The drive unit is mounted on the frame and is used to drive the front wheel to rotate. The front wheel is an inflatable tire.

[0008] The transfer box, fixed on the frame, includes a box body, a first door, a second door, a partition, and an anti-slip mat. The top of the box body has a first access opening, and the side of the box body has a second access opening. The first door is hinged to the box body and is used to open and close the first access opening, and the second door is hinged to the box body and is used to open and close the second access opening. The partition is detachably provided in the inner cavity of the box body, and the upper surface of the partition is covered with the anti-slip mat for direct support and fixation of the sample.

[0009] As an alternative to the sample transfer device, the transfer box also includes:

[0010] The first sealing ring is provided on the side of the first box door facing the first opening and the first sealing groove, and the first sealing ring is embedded in the first sealing groove to squeeze and seal the first opening and the first sealing groove when the first box door is closed.

[0011] The second sealing ring is provided on the side of the second cabinet door facing the second access port, and the second sealing groove is embedded in the second sealing groove to squeeze and seal the second access port when the second cabinet door is closed.

[0012] As an alternative to the sample transfer device, the transfer box also includes a support cylinder, which includes a cylinder barrel and a piston rod slidably inserted into the cylinder barrel. One of the box body and the first box door is rotatably connected to the cylinder barrel, and the other of the two is rotatably connected to the piston rod.

[0013] As an alternative to a sample transfer device, the housing comprises multiple metal plates that are welded together.

[0014] As an alternative to the sample transfer device, the transfer box also includes a sealing strip that is affixed to the weld seam of the adjacent metal plate.

[0015] As an optional sample transfer device, the outer wall of the box is provided with handrails or handle grooves.

[0016] As an alternative to the sample transfer device, the rear wheel is a thermoplastic rubber wheel or an iron-core polyurethane wheel.

[0017] As an alternative to the sample transfer device, the chassis assembly also includes a switch that is mounted on the frame and electrically connected to the drive unit.

[0018] As an alternative to the sample transfer device, the chassis assembly is also equipped with an electromagnetic brake, which is mounted on the frame and connected to the rear wheel and / or the front wheel.

[0019] As an alternative to the sample transport device, the chassis assembly also includes a battery mounted on the frame and electrically connected to the drive unit.

[0020] Beneficial effects:

[0021] This invention provides a sample transport device. By using pneumatic tires as front wheels, it effectively improves the device's shock absorption and maneuverability on complex road surfaces, ensuring sample stability during transport. Hinged doors on the top and sides of the container provide flexible access for samples in multiple directions and scenarios, significantly enhancing ease of use. The internal cavity of the container, through a combination of detachable partitions and anti-slip pads, provides reliable and non-slip flexible support for the samples, effectively preventing damage caused by sliding or collisions during transport. The organic combination of the chassis walking mechanism, container access structure, and internal support structure constitutes a comprehensive sample transport solution with good shock absorption, flexible operation, and high protection, comprehensively improving the device's practicality and reliability. Attached Figure Description

[0022] Figure 1 This is a first schematic diagram of the sample transfer device provided in this embodiment of the present invention;

[0023] Figure 2 This is a second schematic diagram of the sample transfer device provided in this embodiment of the present invention;

[0024] Figure 3 yes Figure 2 An enlarged diagram of position A in the middle.

[0025] In the picture:

[0026] 100. Sample;

[0027] 1. Chassis components; 11. Frame; 12. Drive components; 13. Front wheel; 14. Rear wheel; 15. Switch; 16. Battery;

[0028] 2. Transfer box; 21. Box body; 22. First box door; 23. Second box door; 24. Partition; 25. Support cylinder; 211. First loading / unloading port; 212. Second loading / unloading port; 213. Handrail; 251. Cylinder barrel; 252. Piston rod. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of the device. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper" and "lower," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] This embodiment provides a sample transfer device, such as... Figures 1-3 As shown, the sample transfer device includes a chassis assembly 1 and a transfer box 2. The chassis assembly 1 includes a frame 11, a drive unit 12, a front wheel 13, and a rear wheel 14. The front wheel 13 is rotatably connected to the front of the frame 11, and the rear wheel 14 is rotatably connected to the rear of the frame 11. The drive unit 12 is mounted on the frame 11 and is used to drive the front wheel 13 to rotate. The front wheel 13 is an inflatable tire. The transfer box 2 is fixed on the frame 11 and includes a box body 21 and a first box door 22. The box body 21 has a first loading / unloading opening 211 on the top and a second loading / unloading opening 212 on the side. The first door 22 is hinged to the box body 21 and is used to open and close the first loading / unloading opening 211. The second door 23 is hinged to the box body 21 and is used to open and close the second loading / unloading opening 212. The inner cavity of the box body 21 is detachably provided with a partition 24. The upper surface of the partition 24 is covered with an anti-slip mat for directly supporting and fixing the sample 100.

[0034] This sample transport device utilizes pneumatic tires as front wheels 13, effectively improving its shock absorption and maneuverability on complex road surfaces, ensuring the stability of the sample 100 during transport. The top and sides of the housing 21 are equipped with hinged doors for loading and unloading, enabling flexible storage and retrieval of the sample 100 in multiple directions and scenarios, significantly enhancing ease of use. The interior of the housing 21, through a combination of detachable partitions 24 and anti-slip pads, provides reliable and non-slip flexible support for the sample 100, effectively preventing damage caused by sliding or collisions during transport. The organic integration of the chassis traveling mechanism, the housing 21 storage and retrieval structure, and the internal support structure constitutes a comprehensive solution for sample 100 transport that offers excellent shock absorption, flexible operation, and high protection, comprehensively improving the device's practicality and reliability.

[0035] In this embodiment, the anti-slip mat has anti-slip patterns, and the material of the anti-slip mat is selected from rubber, silicone, or polyurethane elastomer. The anti-slip patterns on the surface (such as grid patterns, diamond patterns, dotted protrusions, etc.) increase the roughness and actual contact area of ​​the contact surface between the anti-slip mat and the bottom of the sample 100 packaging container, thereby significantly enhancing the static friction and effectively preventing the sample 100 from sliding or shifting due to inertia or vibration during transportation. The selection of materials such as rubber, silicone, or polyurethane elastomers utilizes their inherent high coefficient of friction and excellent elastic deformation ability; on the other hand, these flexible materials can also provide a certain degree of cushioning and shock absorption, absorbing some of the impact energy transmitted to the sample 100, complementing the shock absorption effect of the pneumatic tire, and further ensuring the transportation safety of the sample 100.

[0036] In this embodiment, the transfer box 2 further includes a first sealing ring and a second sealing ring. A first sealing groove is provided around the side of the first door 22 facing the first access port 211, and the first sealing ring is embedded within the first sealing groove to compress and seal the first access port 211 when the first door 22 is closed. A second sealing groove is provided around the side of the second door 23 facing the second access port 212, and the second sealing ring is embedded within the second sealing groove to compress and seal the second access port 212 when the second door 23 is closed. When the first door 22 is closed, the first sealing ring undergoes elastic deformation due to the compression between the door and the periphery of the first access port 211, tightly filling the gap between the door and the access port, thereby forming a continuous and reliable sealing barrier at the first access port 211. This sealing barrier effectively prevents dust, particulate matter, and moisture from the external environment from entering the inner cavity of the transfer box 2 through the first loading / unloading port 211 at the top. This avoids contamination or moisture absorption of the sample 100 (such as tobacco leaves and cigarettes) during transport, ensuring the cleanliness and dryness of the sample 100. This plays a positive role in maintaining the accuracy and quality stability of the tobacco sample 100. When the second door 23 is closed, the second sealing ring is also deformed due to compression, forming an effective seal at the second loading / unloading port 212 on the side. This seal not only prevents dust and moisture but also prevents small sample 100 debris (such as tobacco dust and shreds) from leaking from the side gaps when the device travels on uneven surfaces or tilts slightly. This maintains a clean working environment and avoids cross-contamination between different samples 100 due to leakage.

[0037] like Figure 3 As shown, the transfer box 2 also includes a support cylinder 25, which includes a cylinder barrel 251 and a piston rod 252 slidably inserted into the cylinder barrel 251. The first box door 22 is rotatably connected to the cylinder barrel 251, and the box body 21 is rotatably connected to the piston rod 252. When the top first box door 22 is opened or closed, the support cylinder 25 can provide a constant damping support force. During the opening of the first box door 22, it can effectively resist the weight of the first box door 22 itself, allowing it to open slowly, smoothly, and controllably without requiring the user to lift it, thus preventing the first box door 22 from shaking or impacting the box body 21 due to sudden and rapid opening, thereby protecting the first box door 22 and the connecting structure (hinges). When closing the box door, the damping force it provides can also prevent the first box door 22 from falling rapidly under the action of gravity, ensuring its smooth closure, eliminating the risk of pinching or a loud impact sound, and improving the safety and comfort of operation. Furthermore, this rotating connection allows the support cylinder 25 to freely adjust its spatial posture according to the opening and closing angle of the first door 22, ensuring smooth and stable transmission of the supporting force. In other embodiments, the first door 22 is rotatably connected to the piston rod 252, and the housing 21 is rotatably connected to the cylinder 251.

[0038] In this embodiment, the housing 21 comprises multiple metal plates welded together. This welding creates a permanent, continuous, and dense metallurgical bond between the metal plates, collectively forming a housing 21 structure with high integrity, high rigidity, and high structural strength. This structure effectively resists impacts, collisions, and deformations that may occur during transport, providing a robust and reliable protective space for the internal sample 100. Furthermore, compared to detachable methods such as bolted connections, welding avoids connection failures caused by loose screws or corrosion, improving the durability and reliability of the device. In addition, the smooth, continuous inner wall formed by welding reduces gaps and protrusions within the housing 21, facilitating cleaning and reducing the risk of sample 100 residue and cross-contamination.

[0039] Specifically, the metal plate is made of 5mm thick Q235 steel plate (yield strength ≥235MPa). After welding, the box 21 has a static load capacity of 400KG. The box 21 is reinforced with cross-shaped ribs, which increases the deformation resistance by 60%.

[0040] In this embodiment, the transfer box 2 also includes a sealing strip, which is affixed to the weld seam of the adjacent metal plates. By performing a secondary sealing treatment on the weld seam, microscopic defects and unevenness that may occur during the welding process, or potential micro-cracks in the weld seam caused by long-term use and vibration, are effectively filled, thus forming a continuous and dense additional sealing barrier on the wall panel of the box 21. This sealing strip effectively prevents moisture, water stains, dust, and fine contaminants from the external environment from seeping into the inner cavity of the box 21 through these potential pathways in the weld seam, greatly improving the overall sealing and protection level of the box 21. This avoids the influence and contamination of the internal sample 100 (such as tobacco) by external environmental factors, ensuring the dryness and cleanliness of the sample 100 during transfer and temporary storage. Furthermore, the sealing strip also provides a certain degree of physical protection for the weld seam, reducing the direct impact of external bumps on the weld seam and potentially concealing weld seam defects, improving the overall aesthetics of the product. Specifically, the sealing strip is made of silicone rubber or polyurethane.

[0041] like Figure 1As shown, the outer wall of the housing 21 is provided with a handle 213 or a handrail groove. The handle 213 or handrail groove provides the operator with a clear and ergonomic point of force, making the operation of pushing, turning, dragging, or lifting the entire transfer device easier, more stable, and safer. The handle 213 provides space for the palm to grip and support, allowing the user to more effectively control the direction and speed of the device's movement, especially when turning or going uphill or downhill, effectively preventing the device from going out of control or tipping over; while the handrail groove allows fingers to be inserted, facilitating short-distance lifting or precise positioning of the housing 21, avoiding the risk of slipping due to the smooth surface of the housing 21 where there is no place to grip. This structure significantly improves the operability and mobility of the device, and reduces the labor intensity and operational risks for the operator.

[0042] In this embodiment, the rear wheel 14 is either a thermoplastic rubber (TPR) wheel or a polyurethane (PU) core wheel. Both materials provide superior shock absorption and noise reduction compared to ordinary hard plastic or solid rubber wheels. TPR wheels are flexible and have good elasticity; PU core wheels typically have a metal hub as the core, covered with elastic polyurethane material. During rolling, they effectively absorb and buffer the impact and vibration caused by uneven road surfaces, reducing the vibration transmitted to the housing 21. This, combined with the inflatable front wheel 13, further ensures the stability of the sample 100 (such as tobacco) during transport, preventing structural damage or shape changes due to severe bumps. Simultaneously, the noise generated by these two materials during rolling is significantly lower than that of hard materials, achieving quiet operation and improving the working environment. Furthermore, polyurethane material is wear-resistant and oil-resistant, enhancing the durability of the rear wheel 14.

[0043] like Figure 1 As shown, the chassis assembly 1 also includes a switch 15, which is mounted on the frame 11 and electrically connected to the drive unit 12. The switch 15 provides the operator with an easily accessible and operable electrical control interface located on the chassis assembly 1. By operating this switch 15, the user can safely and conveniently control the energization and de-energization of the drive unit 12, thereby enabling the start and stop of the entire device's electric drive function. This allows the user to quickly and easily control the device's propulsion power when manually pushing or operating it.

[0044] In this embodiment, the chassis assembly 1 is also equipped with an electromagnetic brake, which is mounted on the frame 11 and connected to the rear wheel 14 and / or the front wheel 13. When the device needs to stop or park, the electromagnetic brake is energized or de-energized to generate braking force, which is directly applied to the wheels (rear wheel 14 and / or the front wheel 13) through a mechanical connection. This can quickly stop the wheels from rotating, achieving effective braking and preventing the device from accidentally sliding on slopes or due to inertia, thus ensuring operational safety and the safety of the sample 100.

[0045] like Figure 1 As shown, the chassis assembly 1 also includes a battery 16, which is mounted on the frame 11 and electrically connected to the drive unit 12. The battery 16 converts chemical energy into electrical energy, continuously supplying power to the drive unit 12 via electrical connection, enabling it to operate independently and drive the front wheels 13. This frees the entire sample transport device from dependence on a fixed power source or towing cable, achieving true mobile working capability and operational freedom. It can flexibly move between different locations such as warehouses, laboratories, and workshops, greatly expanding the device's application range and practicality. Specifically, the battery 16 is a 24V, 52A maintenance-free lead-acid battery 16, with strong endurance; under a 400KGS load, it can operate for 4 hours (on flat roads).

[0046] In this embodiment, the chassis assembly 1 also includes a controller, an accelerator, and a charger. These three components are collectively mounted on the chassis assembly 1. The controller, as the core processing unit, receives operation command signals from the accelerator and precisely adjusts the current or voltage output to the drive unit 12 accordingly. This achieves smooth, stepless control of the sample transport device's speed, making the start-up, acceleration, constant speed, and deceleration processes more stable, improving operational comfort and the protection of the sample 100. The charger provides a safe and standard energy replenishment interface for the onboard battery 16, ensuring that the battery 16 can be charged quickly and reliably, maintaining the device's continuous operating capability. These three components, working in conjunction with the battery 16 and the drive unit 12, greatly enhance the device's automation level, control performance, and range convenience.

[0047] In this embodiment, the drive unit 12 is a motor with a power of 400W and a rated load of 400KGS, providing sufficient power support to ensure stable operation of the sample transfer device under various loads. In the chassis assembly 1, the two front wheels are 10-inch pneumatic tires, providing strong grip and good stability. The two rear wheels 14 are 6-inch thermoplastic rubber (TPR) wheels or iron-core polyurethane (PU) wheels, reducing noise and improving mobility. The chassis assembly 1 has a climbing angle of 0°-20° and a maximum climbing distance of 5 meters, adapting to various terrains.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A sample transfer device, characterized in that, include: The chassis assembly (1) includes a frame (11), a drive unit (12), a front wheel (13) and a rear wheel (14). The front wheel (13) is rotatably connected to the front of the frame (11), and the rear wheel (14) is rotatably connected to the rear of the frame (11). The drive unit (12) is mounted on the frame (11) and is used to drive the front wheel (13) to rotate. The front wheel (13) is an inflatable tire. The transfer box (2) is fixed on the frame (11). The transfer box (2) includes a box body (21), a first box door (22), a second box door (23), a partition (24), and an anti-slip mat. The top of the box body (21) is provided with a first loading and unloading port (211), and the side of the box body (21) is provided with a second loading and unloading port (212). The first box door (22) is hinged to the box body (21) and is used to open and close the first loading and unloading port (211). The second box door (23) is hinged to the box body (21) and is used to open and close the second loading and unloading port (212). The partition (24) is detachably provided in the inner cavity of the box body (21). The anti-slip mat is laid on the upper surface of the partition (24) for directly supporting and fixing the sample (100).

2. The sample transfer device according to claim 1, characterized in that, The transfer box (2) also includes: The first sealing ring is provided on the side of the first box door (22) facing the first take-out port (211), and the first sealing groove is embedded in the first sealing groove to squeeze and seal the first take-out port (211) when the first box door (22) is closed. The second sealing ring is provided on the side of the second box door (23) facing the second take-out port (212), and the second sealing groove is embedded in the second sealing groove to squeeze and seal the second take-out port (212) when the second box door (23) is closed.

3. The sample transfer device according to claim 1, characterized in that, The transfer box (2) also includes a support cylinder (25), which includes a cylinder (251) and a piston rod (252) slidably inserted into the cylinder (251). One of the box body (21) and the first box door (22) is rotatably connected to the cylinder (251), and the other is rotatably connected to the piston rod (252).

4. The sample transfer device according to claim 1, characterized in that, The housing (21) includes multiple metal plates, which are welded together.

5. The sample transfer device according to claim 4, characterized in that, The transfer box (2) also includes a sealing strip, which is attached to the weld seam of the adjacent metal plate.

6. The sample transfer device according to claim 1, characterized in that, The outer wall of the box (21) is provided with a handrail (213) or a handle groove.

7. The sample transfer device according to claim 1, characterized in that, The rear wheel (14) is a thermoplastic rubber wheel or an iron-core polyurethane wheel.

8. The sample transfer device according to any one of claims 1-7, characterized in that, The chassis assembly (1) is also provided with a switch (15), which is disposed on the frame (11) and electrically connected to the drive unit (12).

9. The sample transfer device according to any one of claims 1-7, characterized in that, The chassis assembly (1) is also provided with an electromagnetic brake, which is mounted on the frame (11) and connected to the rear wheel (14) and / or the front wheel (13).

10. The sample transfer device according to any one of claims 1-7, characterized in that, The chassis assembly (1) also includes a battery (16), which is disposed on the frame (11) and electrically connected to the drive unit (12).

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