A transport device for biological detection samples

Abstract

This utility model discloses a transport device for biological detection samples, belonging to the field of biological detection technology. It includes: a vehicle body, a pull-out box slidably inserted into the vehicle body, and a storage and buffer assembly. The storage and buffer assembly includes a support shell disposed in the pull-out box, a sample storage tube for clamping sample tubes, and an elastic support unit. The inner cavity of the support shell is filled with a viscous buffer solution, and the bottom of the sample storage tube is partially immersed in the viscous buffer solution to absorb the vibration energy of the sample storage tube. The sample storage tube is connected to the support shell through the elastic support unit to support the sample storage tube and reduce the vibration amplitude of the sample storage tube. This utility model can protect biological detection samples from being affected and damaged during transportation.

Description

Technical Field

[0001] This utility model relates to the field of biological detection technology, and in particular to a transport device for biological detection samples. Background Technology

[0002] Biological testing samples typically refer to the body fluids (such as urine, blood, saliva, bile, gastric juice, lymph, and other secretions of the organism), hair, muscles, and some tissues and organs (such as thymus, pancreas, liver, lungs, brain, stomach, kidneys, etc.) of animals (including humans), as well as various microorganisms.

[0003] The sampling area for biological testing is often located away from the actual testing area, necessitating the transportation and transfer of the samples. During transportation, vehicle bumps can cause excessive shaking or breakage of the biological sample tubes, leading to interference or contamination of the samples and affecting subsequent experimental research. Utility Model Content

[0004] In view of this, it is necessary to provide a transport device for biological testing samples to solve the problem of excessive jolting during the transport of existing biological testing samples.

[0005] This utility model provides a transport device for biological detection samples, comprising: Vehicle body; The pull-out box is slidably inserted into the vehicle body; A preservation buffer assembly includes a support shell disposed in the pull-out box, a sample storage tube for clamping sample tubes, and an elastic support unit. The inner cavity of the support shell is filled with a viscous buffer solution, and the bottom of the sample storage tube is partially immersed in the viscous buffer solution to absorb the vibration energy of the sample storage tube. The sample storage tube is connected to the support shell through the elastic support unit to support the sample storage tube and reduce the vibration amplitude of the sample storage tube.

[0006] Furthermore, the sample storage cylinder includes a cylinder body and a horizontal plate and a vertical plate integrally connected to the bottom of the cylinder body. The horizontal plate is arranged relatively horizontally to impede vertical movement of the cylinder body in the viscous buffer solution. A plurality of the vertical plates are arranged relatively vertically and equidistantly around the axis of the cylinder body to impede horizontal movement of the cylinder body in the viscous buffer solution.

[0007] Furthermore, the top of the support housing is provided with a mounting hole, which communicates with the inner cavity of the support housing, and the sample storage cylinder is inserted into the mounting hole; the sample storage cylinder and the mounting hole are connected through the elastic support unit.

[0008] Furthermore, the elastic support unit includes a plurality of horizontally arranged first elastic elements and a vertically arranged second elastic element. The two ends of the first elastic elements are respectively connected to the inner side of the mounting hole and the outer side of the sample storage cylinder. The plurality of first elastic elements are arranged equidistantly around the sample storage cylinder. The two ends of the second elastic elements are respectively connected to the inner wall of the sample storage cylinder and the support shell.

[0009] Furthermore, the plurality of mounting holes are arranged relative to the support housing array.

[0010] Furthermore, the preservation buffer assembly also includes a fastening unit, which includes a wedge-shaped piece, a ring-shaped sleeve, and a flexible connector for insertion between the inner wall of the sample storage cylinder and the sample tube. The ring-shaped sleeve is fitted onto the opening of the sample storage cylinder, and the two ends of the flexible connector are integrally connected to the ring-shaped sleeve and the wedge-shaped piece, respectively.

[0011] Furthermore, the wedge-shaped member has an arcuate portion that adapts to the inner wall of the sample storage cylinder.

[0012] Furthermore, a storage cavity is formed between the supporting shell and the inner wall of the pull-out box. The storage cavity can store heat sources and cold sources for cooling or heating the viscous buffer solution and the sample storage cylinder.

[0013] Furthermore, multiple pull-out boxes are slidably inserted into the vehicle body, and the multiple pull-out boxes are arranged in an overlapping manner.

[0014] Furthermore, a pull handle is provided on one side of the vehicle body, and omnidirectional wheels are provided on both sides of the bottom of the vehicle body.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) A biological sample transport device of the present invention comprises a support shell and a sample storage cylinder. The support shell is set in a pull-out box and can buffer and protect the sample located in the support shell, reducing the interference and influence of the external physical and chemical environment and impact on the sample quality. The sample storage cylinder is used to clamp the sample tube. The sample storage cylinder itself is a modular clamping unit that can be specifically adapted to sample tubes of the same specification. The inner cavity of the support shell is filled with a viscous buffer solution. The bottom of the sample storage cylinder is half-submerged in the viscous buffer solution. The bottom of the sample storage cylinder is largely immersed in the viscous buffer solution. Its huge surface area allows the liquid damping to efficiently absorb vibration energy from all directions, preventing the sample tube from vibrating relative to the sample storage cylinder.

[0016] (2) The present invention provides a biological sample transport device, which is equipped with an elastic support unit. The sample storage cylinder and the support shell are connected by the elastic support unit. The elastic support unit can support the entire module containing the sample tube and the sample storage cylinder, and position and support the entire sample storage cylinder. The elastic support unit can withstand the impact force applied to the sample storage cylinder from the outside and then evenly transmit it to the entire sample storage cylinder structure, reduce the vibration amplitude of the sample storage cylinder, and avoid excessive influence on the sample located in the sample storage cylinder. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the pull-out box and the storage buffer assembly in this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the pull-out box and the storage buffer assembly in this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the storage buffer component in this utility model; Figure 4 This is a schematic diagram of the structure of the sample storage cylinder in this utility model; Figure 5 This is a schematic diagram of the supporting shell structure in this utility model; Figure 6 This is a schematic diagram of the fastening unit in this utility model.

[0018] Figure 7 This is a schematic diagram of the overall structure of this utility model.

[0019] In the diagram, 100 is the vehicle body; 110 is the extension handle; and 120 is the swivel wheel. 200. Pull-out cabinet; 210. Storage cavity; 300. Preservation buffer assembly; 310. Support shell; 311. Viscous buffer solution; 312. Mounting hole; 320. Sample storage cylinder; 321. Cylinder body; 322. Horizontal plate; 323. Vertical plate; 330. Elastic support unit; 331. First elastic element; 332. Second elastic element; 340. Fastening unit; 341. Wedge-shaped element; 342. Ring-shaped sleeve; 343. Flexible connector. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0021] This embodiment discloses a transport device for biological testing samples, relating to the field of biological testing technology. It utilizes a dual buffer and shock absorption system composed of a viscous buffer solution 311 and an elastic support unit 330. The two work together on the sample tube to cleverly solve the problem of excessive shaking of biological testing samples during transportation by "absorbing" and "attenuating" vibration energy, thus protecting the biological testing samples from being affected and damaged during transportation.

[0022] Please see Figures 1 to 7 This embodiment discloses a biological testing sample transport device, comprising: a vehicle body 100, a pull-out box 200, and a storage and buffer assembly 300. The vehicle body 100 is used for transporting sample tubes. The pull-out box 200 is slidably inserted into the vehicle body 100, enhancing the structural strength of the entire device and providing a higher level of physical protection for the internal samples and buffer system, jointly resisting external impacts and pressures. The storage and buffer assembly 300 is used to preserve the sample tubes and withstand the impact of vehicle body 100 vibrations on the sample tubes.

[0023] The preservation buffer assembly 300 includes a support shell 310, a sample storage cylinder 320, and an elastic support unit 330. The support shell 310 is disposed in the pull-out box 200 and can buffer and protect the sample located in the support shell 310, reducing the interference and impact of external physical and chemical environment and impact on sample quality. The sample storage cylinder 320 is used to clamp the sample tube. The sample storage cylinder 320 itself is a modular clamping unit that can be specifically adapted to sample tubes of the same specification. The inner cavity of the support shell 310 is filled with a viscous buffer solution 311. The bottom of the sample storage cylinder 320 is partially immersed in the viscous buffer solution 311, and a large area of ​​the bottom of the sample storage cylinder 320 is immersed in the viscous buffer solution 311. Its large surface area allows the liquid damping to efficiently absorb vibration energy from all directions, preventing the sample tube from vibrating relative to the sample storage cylinder 320.

[0024] The sample storage cylinder 320 is connected to the support shell 310 via an elastic support unit 330. The elastic support unit can support the entire module containing the sample tube and the sample storage cylinder 320, providing overall positioning and support for the sample storage cylinder 320. The elastic support unit 330 can withstand the impact force applied to the sample storage cylinder 320 from the outside and then evenly distribute it to the entire structure of the sample storage cylinder 320, reducing the vibration amplitude of the sample storage cylinder 320 and preventing the sample inside the sample storage cylinder 320 from being excessively affected.

[0025] During use, the operator dispenses the collected biological samples (such as blood, urine, tissue homogenate, etc.) into appropriate sample tubes and tightens the caps. The sample tubes are then inserted one by one into the designated openings of the sample storage cylinder 320. The sample storage cylinder 320, with several tubes already clamped, is then placed entirely into the support housing 310. A portion of the bottom of the sample storage cylinder 320 is immersed in a viscous buffer solution 311 pre-poured into the support housing 310. Simultaneously, the sample storage cylinder 320 is connected and fixed to the support housing 310 via an elastic support unit 330 (such as a spring or rubber column) at the top, forming a stable suspension structure.

[0026] When the transport vehicle's engine is running or in motion, it generates continuous high-frequency vibrations. These vibrations are transmitted through the vehicle body 100 to the pull-out housing 200, and then to the support housing 310. The viscous buffer solution 311 inside the support housing 310 experiences intense internal friction due to these vibrations, converting the mechanical energy of the vibrations into heat energy and dissipating it. Because the bottom of the sample storage cylinder 320 is immersed in the liquid, these harmful micro-vibrations are significantly absorbed and attenuated before being transmitted to the sample tube. At the same time, the elastic support unit 330 connecting the sample storage cylinder 320 is compressed or stretched, extending the duration of the impact force through its own deformation, thereby significantly reducing the peak impact force (G-value).

[0027] It should be noted that the viscous buffer 311 is specifically silicone oil or sodium polyacrylate gel, both of which have a viscosity of over 30,000 cSt and have extremely strong damping effect.

[0028] In some embodiments, please refer to Figures 1 to 4 The sample storage cylinder 320 includes a cylinder 321, a horizontal plate 322, and a vertical plate 323. The horizontal plate 322 and the vertical plate 323 are integrally connected to the bottom of the cylinder 321 and are both immersed in the viscous buffer solution 311. The combination of the horizontal plate 322 and the vertical plate 323 has a special geometric structure that can maximize the damping effect of the viscous buffer solution 311 on impacts and vibrations in all directions.

[0029] The horizontal plate 322 is a plate-shaped structure that is set horizontally and integrally connected to the bottom of the cylinder 321. The horizontal plate 322 can prevent the sample storage cylinder 320 from moving vertically relative to the viscous buffer solution 311.

[0030] The vertical plate 323 is a plate-like structure that is relatively vertically arranged and integrally connected to the bottom of the cylinder 321. Multiple vertical plates 323 form a paddle structure and are equidistantly arranged around the axis of the cylinder 321. Multiple vertical plates 323 can prevent the sample storage cylinder 320 from moving horizontally relative to the viscous buffer solution 311.

[0031] In practical implementation, both the horizontal plate 322 and the vertical plate 323 are structures used to increase the interaction area between the cylinder 321 and the viscous buffer solution 311. The horizontal plate 322, the vertical plate 323, and the cylinder 321 are integrally injection molded or cast. With the viscosity of the viscous buffer solution 311 remaining constant, a larger interaction area results in a greater force. The presence of the horizontal plate 322 and the vertical plate 323 enhances the damping effect between the viscous buffer solution 311 and the cylinder 321. The number of vertical plates 323 is specifically 3, 4, 5, or 6, and their equidistant arrangement ensures that the resistance experienced in each horizontal direction is uniform and symmetrical. Regardless of the horizontal direction of the impact, a stable and consistent buffering effect is provided, with no weak points.

[0032] During operation, when the sample storage tube 320 attempts to move vertically (e.g., when a vehicle travels over a bumpy road), the horizontal plate 322 must push aside the viscous buffer solution 311 on its upper and lower surfaces. The kinetic energy generated by the vehicle's vertical movement is quickly converted into heat energy from internal friction within the liquid and dissipated. The horizontal plate 322 can suppress vertical jumping and impacts, preventing the test tube from shaking violently, colliding with the cap, or breaking due to vertical acceleration.

[0033] When the vehicle body sways left and right or bounces back and forth, causing the sample storage tube 320 to attempt to move horizontally, the paddle structure formed by multiple vertical plates 323, equidistantly arranged around the axis of the tube 321, must cut and push aside the surrounding viscous buffer solution 311, which will also be subject to significant fluid resistance. The kinetic energy generated by the vehicle's left and right swaying or back and forth will be rapidly converted into heat energy from the friction within the liquid and dissipated. The vertical plates 323 can suppress horizontal jumping and impact, preventing the test tube from violently shaking, colliding with the cap, or breaking due to vertical acceleration.

[0034] When the vehicle turns or sways, it generates a force that causes the sample storage tube 320 to rotate around its axis. The presence of the vertical plate 323 means that any attempt to rotate must drive these "blades" to rotate, thereby agitating the surrounding viscous liquid and subjecting it to extremely strong rotational damping, thus effectively preventing liquid separation or the generation of violent eddies due to centrifugal force during rotation in the test tube.

[0035] In some embodiments, please refer to Figure 3The top of the support housing 310 has multiple mounting holes 312, which communicate with the inner cavity of the support housing 310. Sample storage cylinders 320 are inserted into the mounting holes 312 and immersed in a viscous buffer solution 311. The sample storage cylinders 320 are connected to the mounting holes 312 via elastic support units 330. Each mounting hole 312 provides a dedicated, fixed mounting position for each sample storage cylinder 320. The hole walls guide and straighten the sample storage cylinder 320, ensuring that all sample storage cylinders 320 and their internal sample tubes are always in an ideal upright position, preventing liquid samples from contaminating the tube caps.

[0036] The elastic support unit 330 is disposed between the edge of the mounting hole 312 and the cylinder 321. The mounting hole 312 provides an upper mounting base for the elastic support unit 330, thereby improving structural stability.

[0037] In the specific implementation process, the support housing 310 is a rectangular housing with a hollow interior. Multiple mounting holes 312 are cut out on the top of the support housing 310 by laser cutting, and an appropriate amount of viscous buffer solution 311 is added to the inner cavity of the support housing 310.

[0038] One end of the elastic support unit 330 is connected to the inner wall of the mounting hole, and the other end is connected to the sample storage cylinder 320, thus "suspending" the sample storage cylinder 320. This makes the sample storage cylinder 320 and its loaded sample an independent mass block that can move relative to the support housing 310.

[0039] When an external impact occurs, the support housing 310 moves first, but the motion is not directly and completely transmitted to the sample storage cylinder 320 due to the buffering effect of the elastic unit. The "suspension system" effectively isolates high-frequency vibrations from the vehicle body 100 and the support housing 310. The impact energy is gradually absorbed and dissipated along the path of "vehicle body 100 → support housing 310 → mounting hole / elastic unit → sample storage cylinder 320 → viscous buffer solution 311". This design ensures that the energy can be transferred most efficiently to the final dissipation medium (viscous buffer solution 311).

[0040] For further implementation methods, please refer to Figure 3 and Figure 4The elastic support unit 330 includes multiple horizontally arranged first elastic elements 331 and vertically arranged second elastic elements 332. The two ends of the first elastic elements 331 are connected to the inner side of the mounting hole 312 and the outer side of the sample storage cylinder 320, respectively. The multiple first elastic elements 331 are equidistantly arranged around the sample storage cylinder 320, and act together on the cylinder 321, ensuring that the cylinder 321 is force-balanced on the horizontal plane and centered relative to the mounting hole 312. The two ends of the second elastic elements 332 are connected to the inner walls of the sample storage cylinder 320 and the support housing 310, respectively. The second elastic elements 332 provide a vertical pulling force to the sample storage cylinder 320. The resultant force of the second elastic elements 332 and the multiple first elastic elements 331 is force-balanced in the vertical direction, thereby maintaining the relative suspension of the sample storage cylinder 320. The movement of the sample storage cylinder 320 within the support housing 310 is strictly limited to three translational axes and three rotational axes. Each degree of freedom is controlled and constrained by elastic elements, ensuring its relative stability in any complex transportation environment.

[0041] In the specific implementation process, the first elastic element 331 and the second elastic element 332 are springs or elastic ropes. The tensile force of the first elastic element 331 and the second elastic element 332 can change with deformation, so as to always maintain the pulling force on the sample storage cylinder 320.

[0042] During use, when the vehicle drives over potholes or speed bumps, it generates an upward impact force; or after driving over a protrusion, the vehicle body drops, creating a downward feeling of weightlessness.

[0043] Upward impact: The support shell 310 moves sharply upward, but due to inertia, the sample storage cylinder 320 tends to maintain its original state (relatively downward). This causes the vertical second elastic element 332 connecting the sample storage cylinder 320 and the inner wall of the support shell 310 to be rapidly stretched. The tensile force generated by the elastic element resists the motion and absorbs a large amount of energy from the upward impact.

[0044] Downward impact: The supporting shell 310 moves downward, and due to inertia, the sample storage cylinder 320 moves upward relative to it, compressing the vertical second elastic element 332. The compressive force of the elastic element buffers the downward impact.

[0045] The second elastic element 332 converts the violent, instantaneous vertical impact into elastic potential energy through its own stretching and compression, and releases it slowly, thereby ensuring that the vertical movement of the sample storage cylinder 320 becomes smooth and gentle.

[0046] The centrifugal force when a vehicle turns, the inertial force during sudden braking, and the impact from the side.

[0047] The impact force from one side pushes the support housing 310 to the other side, but the sample storage cylinder 320 tends to stay in place due to inertia, causing the first horizontal elastic member between one side of the sample storage cylinder 320 and the inner side of the mounting hole to be compressed; at the same time, the first horizontal elastic member on the other side is stretched.

[0048] The compressed and stretched elastic element simultaneously generates a restoring force, attempting to push the sample storage cylinder 320 back to its center position. During this process, the kinetic energy of the impact is converted into elastic potential energy and dissipated.

[0049] Please refer to [link / reference needed] for further information. Figure 5 Multiple mounting holes 312 are arranged in a rectangular linear array relative to the support housing 310. This compact and regular arrangement maximizes the number of samples that can be transported within the limited top area of ​​the support housing 310. The arrayed mounting holes 312 optimize the overall size and weight of the device, avoiding space waste caused by arbitrary layouts and ensuring portability and efficient use of vehicle space.

[0050] When an external impact occurs, the regular array ensures that the impact force is evenly transmitted through the support housing 310 structure to each mounting hole and each elastic support unit 330. This avoids situations where some sample storage cylinders 320 experience excessive stress while others experience less stress due to different positions.

[0051] In some embodiments, the storage buffer assembly 300 further includes a fastening unit 340, which includes a wedge-shaped member 341, a ring-shaped sleeve 342, and a flexible connector 343. The wedge-shaped member 341 can be inserted between the inner wall of the sample storage cylinder 320 and the sample tube to squeeze and fill the gap between the inner wall of the sample storage cylinder 320 and the sample tube, perfectly repairing the manufacturing tolerances and dimensional differences among the test tube, the wedge-shaped member 341, and the sample storage cylinder 320, and eliminating any form of shaking. The wedge-shaped member 341 adaptively adjusts its angle and position within a certain range to ensure that the wedge-shaped surface perfectly fits the test tube and the cylinder wall.

[0052] The ring-shaped sleeve 342 is fitted onto the opening of the sample storage cylinder 320. The two ends of the flexible connector 343 are integrated with the ring-shaped sleeve 342 and the wedge-shaped component 341 respectively. The ring-shaped sleeve 342 and the flexible connector 343 can be configured with one wedge-shaped component 341 for each sample storage cylinder 320, which facilitates the storage of the wedge-shaped component 341 and avoids the loss of the wedge-shaped component 341.

[0053] In the specific implementation process, the wedge-shaped component 341, the ring-shaped sleeve 342, and the flexible connector 343 are all plastic parts, injection molded as a single piece. The size of the ring-shaped sleeve 342 is slightly smaller than that of the sample storage cylinder 320. The sample tube is sleeved on the sample storage cylinder 320 and kept relatively fixed. The wedge-shaped component 341 has an inclined surface, which can adaptively adjust its angle and position.

[0054] In some embodiments, please refer to Figure 6 The wedge 341 has an arc-shaped part that can fit into the inner wall of the sample storage cylinder 320, thereby making the gap between the wedge part and the inner wall of the sample storage cylinder 320 and the sample tube more suitable, ensuring that the wedge surface can perfectly fit the test tube and the cylinder wall, and avoiding gaps that affect the tightness of the test tube and the cylinder wall.

[0055] In practical implementation, both the inner and outer sides of the arc-shaped portion are provided with arc surfaces, which can respectively mate with the test tube and the cylinder wall. The radius of curvature of the arc surface is designed to be the same as or very close to the radius of curvature of the inner wall of the sample storage cylinder 320. This transforms the contact between the wedge-shaped component 341 and the cylinder wall from uncontrollable point or line contact to stable and controllable surface contact. The tight fit effectively avoids local crushing, plastic deformation, or wear caused by the wedge-shaped component 341 on the inner wall of the sample storage cylinder 320, protecting the sample storage cylinder 320 and extending its service life.

[0056] During operation, the ring sleeve 342 is pre-fitted onto the opening of the sample storage cylinder 320 and kept fixed, while the wedge-shaped piece 341 is located near the opening.

[0057] The operator inserts the sample tube into a single well in the sample storage cylinder 320, and there may be a gap between the sample tube and the sample storage cylinder 320.

[0058] The operator manually inserts the wedge 341 into the gap. The wedge 341 is designed to move downwards only along the annular gap between the inner wall of the sample storage cylinder 320 and the outer wall of the sample tube. Due to the inclined structure of the wedge 341, its downward movement (axial movement) inevitably generates a horizontally outward expanding force (radial force). This radial force acts on two objects simultaneously: one side of the wedge 341 presses against the outer wall of the sample tube, and the other side of the wedge 341 with its arcuate portion presses against the inner wall of the sample storage cylinder 320.

[0059] In some embodiments, please refer to Figure 1 A storage cavity 210 is formed between the inner wall of the support shell 310 and the pull-out box 200. The storage cavity 210 can store heat and cold sources. The heat source can be a hot water bottle or a hand warmer, and the cold source can be an ice pack. The cold source can cool the support shell 310 as a whole, maintaining a suitable temperature for the sample during hot summer months. The heat source can heat the support shell 310 as a whole, maintaining a suitable temperature for the sample during cold winter months. Ultimately, regardless of changes in external temperature, a stable, uniform, and safe temperature environment can be provided for the precious biological sample throughout the entire process.

[0060] In the specific implementation process, the support shell 310 is inserted entirely into the pull-out box 200 and fixed to the inner wall of the pull-out box 200. The inner cavity of the pull-out box 200 is larger than the volume of the support shell 310, creating a free space between the pull-out box 200 and the support shell 310, forming the aforementioned storage cavity 210. The support shell 310 is made entirely of metal. The viscous buffer solution 311 is separated from the cold or heat source by only one layer, allowing for heat exchange between them. The sample storage cylinder 320 is partially immersed in the viscous buffer solution 311, improving temperature transfer efficiency. As a substance with high specific heat capacity, the viscous buffer solution 311 can maintain a constant temperature for a long time.

[0061] During use, open the pull-out box 200 and place the prepared cold or heat source evenly in the annular storage cavity 210 between the support housing 310 and the inner wall of the pull-out box 200, ensuring that it surrounds one side or one circumference of the support housing 310 to achieve the corresponding heat exchange.

[0062] The heat source supports the outer wall of the housing 310 in direct contact, and heat exchange is completed through heat conduction.

[0063] Heat continues to be conducted inward through the material supporting the shell 310 (typically metal or highly thermally conductive plastic), ultimately transferring to the viscous buffer solution 311 in contact with the inner wall. As the viscous buffer solution 311 is heated, its density decreases, causing it to rise; the unheated, cooler liquid, with its higher density, sinks. This creates natural convection within the liquid, accelerating the process of temperature homogenization throughout the buffer solution pool.

[0064] After a period of settling, the entire system—from the cold source in storage chamber 210 to the viscous buffer solution 311—will reach a stable target temperature range. The preheated viscous buffer solution 311 transfers its heat to the sample reservoir 320 immersed in it via thermal conduction, and then from the sample reservoir 320 to the sample tubes inside. At this point, all samples have reached the required transport temperature.

[0065] In some embodiments, please refer to Figure 7 Multiple pull-out boxes 200 are slidably inserted into the vehicle body 100. The multiple pull-out boxes 200 are stacked vertically. The pull-out boxes 200 are arranged in multiple layers (stacked vertically), which can utilize vertical space and increase the total amount of samples transported by increasing the number of vertical layers without increasing the equipment footprint.

[0066] Each pull-out box 200 is a fully functional, independently enclosed unit (with its own preservation and buffer assembly 300, sample storage cylinder 320, and storage cavity 210).

[0067] The vehicle body 100 has a pull handle 110 on one side, and casters 120 on both sides of its bottom, allowing for 360-degree free rotation. Operators can easily push or pull the entire vehicle body 100 in any direction, including straight ahead, turning, and even lateral movement. This makes the equipment exceptionally simple and flexible in confined spaces such as laboratory corridors, ward passageways, and freight elevators, greatly saving manpower and avoiding potential physical strain from carrying heavy objects. The handle height is designed to fit the arm's natural hanging position when standing. Operators do not need to bend over or adopt awkward postures to push or pull the equipment, providing a comfortable and effortless grip and leverage point, making long-term, long-distance mobile movement possible.

[0068] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. A transport device for biological detection samples, characterized in that, include: Vehicle body; The pull-out box is slidably inserted into the vehicle body; A preservation buffer assembly includes a support shell disposed in the pull-out box, a sample storage tube for clamping sample tubes, and an elastic support unit. The inner cavity of the support shell is filled with a viscous buffer solution, and the bottom of the sample storage tube is partially immersed in the viscous buffer solution to absorb the vibration energy of the sample storage tube. The sample storage tube is connected to the support shell through the elastic support unit to support the sample storage tube and reduce the vibration amplitude of the sample storage tube.

2. The transport device for biological detection samples according to claim 1, characterized in that, The sample storage cylinder includes a cylinder body and a horizontal plate and a vertical plate integrally connected to the bottom of the cylinder body. The horizontal plate is arranged relatively horizontally to impede vertical movement of the cylinder body in the viscous buffer solution. A plurality of the vertical plates are arranged relatively vertically and equidistantly around the axis of the cylinder body to impede horizontal movement of the cylinder body in the viscous buffer solution.

3. The transport device for biological detection samples according to claim 1, characterized in that, The top of the support housing has an installation hole that communicates with the inner cavity of the support housing. The sample storage cylinder is inserted into the installation hole. The sample storage cylinder is connected to the installation hole through the elastic support unit.

4. The transport device for biological detection samples according to claim 3, characterized in that, The elastic support unit includes multiple horizontally arranged first elastic elements and vertically arranged second elastic elements. The two ends of the first elastic elements are respectively connected to the inner side of the mounting hole and the outer side of the sample storage cylinder. The multiple first elastic elements are arranged equidistantly around the sample storage cylinder. The two ends of the second elastic elements are respectively connected to the inner wall of the sample storage cylinder and the support shell.

5. A transport device for biological detection samples according to claim 3 or 4, characterized in that, The plurality of mounting holes are arranged relative to the array of the support housing.

6. The transport device for biological detection samples according to claim 1, characterized in that, The preservation buffer assembly also includes a fastening unit, which includes a wedge-shaped piece, a ring-shaped sleeve, and a flexible connector for insertion between the inner wall of the sample storage cylinder and the sample tube. The ring-shaped sleeve is fitted onto the opening of the sample storage cylinder, and the two ends of the flexible connector are integrally connected to the ring-shaped sleeve and the wedge-shaped piece, respectively.

7. A transport device for biological detection samples according to claim 6, characterized in that, The wedge-shaped member has an arc portion that fits the inner wall of the sample storage cylinder.

8. A transport device for biological detection samples according to claim 1, characterized in that, A storage cavity is formed between the supporting shell and the inner wall of the pull-out box. The storage cavity can store heat sources and cold sources for cooling or heating the viscous buffer solution and the sample storage cylinder.

9. A transport device for biological detection samples according to claim 1, characterized in that, Multiple pull-out boxes are slidably inserted into the vehicle body, and the multiple pull-out boxes are arranged in an overlapping manner.

10. A transport device for biological detection samples according to claim 1, characterized in that, The vehicle body is equipped with a pull handle on one side, and omnidirectional wheels are provided on both sides of the bottom of the vehicle body.

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