Biological sample low-temperature transport case with adjustable cooling rate

Abstract

In order to solve the technical problems that a biological sample transport case cannot adjust the temperature drop rate according to different samples, is complex in structure and the like, the utility model provides a biological sample low-temperature transport case with the adjustable temperature drop rate, which comprises a case body, a fixed heat insulation plate is arranged in the case body, and the interior of the case body is divided into a sample bin and a refrigeration bin by the fixed heat insulation plate; heat dissipation holes for communicating the sample bin with the refrigeration bin are formed in the fixed heat insulation plate; the box cover is connected above the box body, the box cover is hermetically connected with the box body, and the upper end of the fixed heat insulation plate is hermetically connected with the upper end surface of the box cover; the sliding heat insulation plate is arranged on one side of the fixed heat insulation plate and used for adjusting the communication number of the heat dissipation holes between the sample bin and the refrigeration bin. According to the device, the heat transfer speed between the sample bin and the refrigeration bin in the box body can be adjusted, the situation that the temperature is too low is prevented, sample activity keeping is facilitated, and the effective transportation time can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of biological sample transport boxes, in particular to a biological sample low-temperature transport box with adjustable cooling rate. Background Art

[0002] The biological sample transport box is one of the commonly used equipment in the process from medical experiments to clinical diagnosis, and is indispensable in the transportation of biological samples. Low temperature can inhibit the activity of biological macromolecules and reduce the metabolic rate of living cells, thereby maintaining cell activity. Therefore, in order to ensure the high quality of biological samples, it is generally necessary to maintain low temperature throughout the transportation process. However, excessive low temperature will damage the cell structure. Therefore, for biological samples that require subsequent cell separation and culture, the transportation temperature should not be too low and needs to be above the safe temperature.

[0003] The change in sample temperature comes from the heat absorbed by ice cubes on the one hand, and from the external heat entering the incubator through the gaps in the incubator on the other hand. Commonly used incubators include disposable foam incubators, reusable plastic incubators, and constant temperature incubators with electric compressors. You can choose a suitable incubator for sample transportation based on sample characteristics, subsequent laboratory type, transportation time, and transportation distance.

[0004] Among the three types of conventional incubators mentioned above, the disposable foam incubator is cheap and easy to operate, but its disadvantage is that it has a simple structure, only an outer shell and an internal cavity, and a single function; the reusable plastic incubator comes with a temperature probe and display, and has a simple partition or bracket inside, which can divide the space for ice cubes and cell preparations to a certain extent, but it cannot control the cooling rate; the constant temperature incubator with an electric compressor is actually a small refrigerator that can achieve constant temperature, but it is expensive and needs to be plugged in, so it is not suitable for general sample transportation. Utility Model Content

[0005] In order to solve the technical problems that the biological sample transport box cannot adjust the temperature drop rate according to different samples and has a complex structure, the utility model provides a biological sample low-temperature transport box with an adjustable temperature drop rate. The technical solution adopted is as follows:

[0006] A biological sample low-temperature transport box with adjustable cooling rate, comprising:

[0007] A box body, wherein a fixed heat insulation board is arranged inside the box body, wherein the fixed heat insulation board divides the inside of the box body into a sample compartment and a refrigeration compartment, and a heat dissipation hole for connecting the sample compartment and the refrigeration compartment is arranged on the fixed heat insulation board;

[0008] The box cover is connected to the top of the box body, the box cover and the box body are tightly connected, and the upper end of the fixed insulation board is tightly connected to the upper end surface of the box cover;

[0009] The sliding heat insulation board is arranged on one side of the fixed heat insulation board and is used to adjust the number of connected heat dissipation holes between the sample chamber and the refrigeration chamber.

[0010] Furthermore, the upper and lower ends of the sample chamber are respectively provided with an upper slide rail and a lower slide rail whose lengths are distributed along the length direction of the fixed insulation board. The upper and lower ends of the sliding insulation board are respectively connected to the upper slide rail and the lower slide rail for sliding along the length direction of the fixed insulation board, and when the lower end of the sliding insulation board is in a sliding connection with the lower slide rail, a first height difference is provided between the upper end of the sliding insulation board and the upper slide rail in the height direction.

[0011] Furthermore, in the length direction of the fixed heat insulation board, the heat dissipation hole is arranged at one end of the fixed heat insulation board, and the length of the sliding heat insulation board is smaller than the length of the fixed heat insulation board.

[0012] Furthermore, a ball bearing is arranged at the lower end of the sliding heat insulation plate, and a groove cooperating with the ball bearing is arranged on the lower guide rail.

[0013] Furthermore, an adjustment handle is fixedly connected above the sliding insulation board, and a slide groove distributed along the length direction of the fixed insulation board is provided on the box cover. The upper end of the adjustment handle passes through the slide groove and extends out above the box cover and is slidably connected in the slide groove.

[0014] Furthermore, a pointer knob is connected to the upper end of the adjustment handle, and a temperature scale line distributed along the length direction of the fixed heat insulation board and located on one side of the pointer knob is provided on the upper end surface of the box cover.

[0015] Furthermore, the pointer knob is rotatably connected to the adjustment handle, the pointer knob has a strip-shaped structure, and when the lower end of the sliding insulation plate is in a sliding connection with the lower sliding rail, the lower end of the pointer knob is located in the slide groove, and when the length direction of the pointer knob is distributed along the length direction of the slide groove, the pointer knob can slide along the length direction of the slide groove, and when the length of the pointer knob is distributed perpendicular to the length direction of the slide groove, the pointer knob and the slide groove are interference fit and clamped.

[0016] Furthermore, the distance between the lower end surface of the pointer knob and the upper end surface of the box cover is greater than the first height difference.

[0017] Furthermore, a temperature display is provided on the upper end surface of the box cover, and the temperature display signal is connected to the temperature sensors located in the sample chamber and the refrigeration chamber.

[0018] Furthermore, a heat-insulating cover is provided at the upper end of the refrigeration bin, and a sealing gasket is provided between the heat-insulating cover, the fixed heat-insulating plate and the side wall of the box body.

[0019] The beneficial effects of the utility model are:

[0020] 1. The interior of the transport box is divided into a sample compartment and a refrigeration compartment by a fixed heat insulation board, and the heat insulation board is provided with heat dissipation holes connecting the two. The movable heat insulation board is provided to adjust the number of heat dissipation holes to adjust the heat transfer speed between the sample compartment and the refrigeration compartment to meet the cooling rate requirements of different biological samples and weather environments, so that the temperature of the sample compartment can be kept within the effective temperature range, which is conducive to maintaining the activity of the sample and can extend the effective transportation time;

[0021] 2. The sliding heat insulation board is slidably connected to one side of the fixed heat insulation board through the upper and lower slide rails, and the upper end of the sliding heat insulation board and the upper slide rail are spaced apart. The sliding heat insulation board can be driven to contact and cooperate with the upper slide rail through the adjustment handle and the pointer knob fixed on the upper part of the sliding heat insulation board. At the same time, the pointer knob is fixed to the slide groove to fix the position of the sliding heat insulation board, thereby realizing the adjustment of the position of the sliding heat insulation board and further realizing the control of the number of heat dissipation holes connected;

[0022] 3. A separate heat-insulating cover is provided on the refrigeration chamber, which can further improve the sealing of the overall structure, reduce the heat exchange between the refrigeration chamber and the external environment, and make the refrigeration chamber exchange heat with the sample chamber only through the heat dissipation holes, thereby improving the accuracy of heat exchange speed control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the utility model

[0024] Figure 2 This is a top view of the structure of the utility model

[0025] Figure 3 This is the main view of the utility model structure

[0026] Figure 4 Top view of the box structure

[0027] Figure 5 for Figure 3 Middle AA section view

[0028] Figure 6 Schematic diagram of the sliding insulation board structure

[0029] Figure 7 Schematic diagram of the structure for fixing the heat insulation board

[0030] Figure 8 for Figure 4 Middle BB section view

[0031] Among them, 1-box cover, 101-temperature display, 102-scale line, 103-slideway;

[0032] 2-Box;

[0033] 3-Fixed heat insulation board, 301-heat dissipation hole;

[0034] 4-sliding heat shield, 401-adjusting handle, 402-pointer knob, 403-ball;

[0035] 5-Upper slide rail;

[0036] 6-lower slide rail;

[0037] 7- Sample bin;

[0038] 8-Refrigeration warehouse;

[0039] 9-insulation cover, 901-fixed handle, 902-sealing gasket;

[0040] 10- Gap. DETAILED DESCRIPTION

[0041] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0042] In the description of the utility model, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the viewing direction or position relationship, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0043] A biological sample low temperature transport box with adjustable cooling rate, such as Figure 1-Figure 7 As shown, it includes a box cover 1 and a box body 2. The box cover 1 is connected to the top of the box body 2, and the two form a closed cavity structure. A fixed insulation board 3 is fixedly connected to the inside of the box body 2. The fixed insulation board 3 divides the above cavity into a sample chamber 7 and a refrigeration chamber 8. A plurality of heat dissipation holes 301 are arranged on the fixed insulation board 3. The sample chamber 7 and the refrigeration chamber 8 can be connected through the heat dissipation holes 301. A sliding insulation board 4 is slidably connected on the surface. The number of connected heat dissipation holes can be adjusted through the sliding insulation board 4. The box cover 1, the box body 2, the fixed insulation board 3, and the sliding insulation board 4 are all made of heat insulation materials.

[0044] Specifically, Figure 4 , Figure 5 , Figure 7 as well as Figure 8As shown, the length of the fixed insulation board 3 is distributed along the front-to-back direction of the inner cavity of the box body 2, and the upper end of the fixed insulation board 3 is flush with the upper end surface of the box body 2 to ensure that the heat between the sample chamber 7 and the refrigeration chamber 8 can only flow from the heat dissipation hole 301; the fixed insulation board 3 is fixed inside the box body 2, and the cavity in the box body 2 is divided into the sample chamber 7 and the refrigeration chamber 8. The sample chamber 7 is used to place biological samples, and the refrigeration chamber 8 is used to place ice packs, and as shown in FIG. Figure 5 and Figure 7 As shown, a plurality of groups of evenly distributed heat dissipation holes 301 are provided on the front part of the fixed heat insulation plate 3, i.e., the front half in the length direction, and heat exchange is performed between the refrigeration chamber 8 and the sample chamber 7 through the heat dissipation holes 301 provided on the front half of the fixed heat insulation plate 3.

[0045] like Figure 3-Figure 6 as well as Figure 8 As shown, the sliding heat insulation board 4 is closely attached to the left side of the fixed heat insulation board 3, that is, a side located in the sample chamber 7. In this embodiment, the length of the sliding heat insulation board 4, that is, the dimension in the width direction of the box body 2, is half of the fixed heat insulation board 3. The upper and lower ends of the box body 2 are respectively fixedly connected with an upper slide rail 5 and a lower slide rail 6. The lengths of the upper slide rail 5 and the lower slide rail 6 are distributed along the width direction of the box body 2, and the two ends of the slide rail in the length direction are respectively fixed to the front and rear inner side walls of the box body 2. Figure 6 As shown, the upper and lower ends of the sliding heat insulation board 4 are respectively slidably connected with the upper slide rail 5 and the lower slide rail 6, and the lower end of the sliding heat insulation board 4 is also provided with a ball 403, and the lower slide rail 6 is provided with a groove that cooperates with the ball 403. The lower end of the sliding heat insulation board 4 is slidably connected with the lower slide rail 6 through the ball 403, and when the ball 403 at the lower end of the sliding heat insulation board 4 is slidably connected with the lower slide rail 6, a first height difference h is provided between the upper end of the sliding heat insulation board 4 and the lower end surface of the upper slide rail 5; an adjusting handle 401 is fixedly connected to the top of the sliding heat insulation board 4, and a pointer knob 402 is provided at the upper end of the adjusting handle 401, and the pointer knob 402 is rotatably connected with the adjusting handle 401, and as shown in FIG. Figure 1 and Figure 4 As shown, a gap 10 is provided between the upper slide rail 5 and the lower slide rail 6 and the fixed heat insulation board 3 in the length direction of the box body 2 , and the adjustment handle 401 passes upward through the gap 10 and then passes through the top of the box cover 1 .

[0046] In addition, a temperature display 101, a scale line 102 and a slide groove 103 are also provided on the upper end surface of the box cover 1. A temperature sensor is provided on the inner wall of the box cover 1 and extends into the sample bin 7 and the refrigeration bin 8 to detect the internal temperature of the sample bin 7 and the refrigeration bin 8, and the temperature sensor is connected to the temperature display 101 by signal to display the real-time temperature; the slide groove 103 is provided at a position directly above the gap 10, and its length is distributed in the front-to-back direction. The scale line 102 is located on one side of the slide groove 103, and the upper end of the adjustment handle 401 passes through the gap 10 and the slide groove 103 from bottom to top in sequence and then extends out of the upper end of the box cover 1 The adjusting handle 401 has a certain length, and a pointer knob 402 is connected to the upper end thereof, and the pointer knob 402 is rotatably connected to the adjusting handle 401, and the pointer knob 402 is aligned with the scale line on the left side by turning the pointer knob 402 to indicate the current position of the sliding heat insulation board 4 in the front-rear direction. Moreover, the pointer knob 402 is an elliptical structure as a whole, and the width in the short axis direction is smaller than the width of the slide groove 103, and the length in the long axis direction is the same as the width of the slide groove 103, that is, when the long axis of the pointer knob 402 is rotated to a direction perpendicular to the slide groove 103, the pointer knob 402 can be snapped into the inside of the slide groove 103, and when the box cover 1 is aligned with the box cover 1, the pointer knob 402 can be snapped into the inside of the slide groove 103. When the body 2 is in a closed connection state, the lower end surface of the pointer knob 402 is located in the slide groove 103, and the spacing H between the lower end surface of the pointer knob 402 and the upper end surface of the box cover 1 is slightly larger than the first height difference h between the upper end surface of the sliding heat insulation board 4 and the lower end of the lower rail 5. In this embodiment, in order to facilitate operation, Hh=1mm, and the main body of the pointer knob 402 is made of a material with a certain elasticity. The pointer knob 402 is rotated so that its long axis direction is distributed in the front and rear directions. If the ball 403 at the lower end of the sliding heat insulation board 4 is slidably connected to the lower rail 6, at this time, the sliding heat insulation board 4 can be dragged to slide forward and backward by adjusting the handle 401. The number of heat dissipation holes 301 blocked is controlled to control the cooling rate of the sample chamber 7. After the position of the sliding heat insulation board 4 in the front-to-back direction is determined, the sliding heat insulation board 4 is pulled upward by adjusting the handle 401 to make the upper end of the sliding heat insulation board 4 contact with the upper slide rail 5, and then the pointer knob 402 is rotated to make its long axis distributed in a direction perpendicular to the slide groove 103. The position of the sliding heat insulation board 4 in the front-to-back direction is fixed by the interference fit between the pointer knob 402 and the slide groove 103. At the same time, the position of the scale line 102 is indicated by the pointer knob 402 to display the position of the sliding heat insulation board 4 at this time.

[0047] like Figure 8 As shown, the upper end of the refrigeration bin 8 of the box body 2 is also fixedly connected to an insulating cover 9, a fixed handle 901 is provided on the upper end of the insulating cover 9, and an annular step is provided on the upper end of the refrigeration bin 8, and a sealing gasket 902 is provided between the lower end surface of the insulating cover 9 and the annular step. Through the setting of the insulating cover 9 and the sealing gasket 902, the interior of the refrigeration bin 8 can be further sealed to avoid heat exchange with the outside world.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A biological sample low-temperature transport box with adjustable cooling rate, characterized in that: include: A box body, wherein a fixed heat insulation board is arranged inside the box body, wherein the fixed heat insulation board divides the inside of the box body into a sample compartment and a refrigeration compartment, and a heat dissipation hole for connecting the sample compartment and the refrigeration compartment is arranged on the fixed heat insulation board; The box cover is connected to the top of the box body, the box cover and the box body are tightly connected, and the upper end of the fixed insulation board is tightly connected to the upper end surface of the box cover; The sliding heat insulation board is arranged on one side of the fixed heat insulation board and is used to adjust the number of connected heat dissipation holes between the sample chamber and the refrigeration chamber.

2. The biological sample low-temperature transport box with adjustable cooling rate according to claim 1, characterized in that: The upper and lower ends of the sample chamber are respectively provided with an upper slide rail and a lower slide rail whose lengths are distributed along the length direction of the fixed insulation board. The upper and lower ends of the sliding insulation board are respectively connected to the upper slide rail and the lower slide rail for sliding along the length direction of the fixed insulation board, and when the lower end of the sliding insulation board is in a sliding connection with the lower slide rail, a first height difference is provided between the upper end of the sliding insulation board and the upper slide rail in the height direction.

3. The biological sample low-temperature transport box with adjustable cooling rate according to claim 2, characterized in that: In the length direction of the fixed heat insulation board, the heat dissipation hole is arranged at one end of the fixed heat insulation board, and the length of the sliding heat insulation board is smaller than the length of the fixed heat insulation board.

4. The biological sample low-temperature transport box with adjustable cooling rate according to claim 3, characterized in that: A ball bearing is arranged at the lower end of the sliding heat insulation plate, and a groove cooperating with the ball bearing is arranged on the lower sliding rail.

5. The biological sample low-temperature transport box with adjustable cooling rate according to claim 3, characterized in that: An adjustment handle is fixedly connected above the sliding insulation board, and a slide groove distributed along the length direction of the fixed insulation board is arranged on the box cover. The upper end of the adjustment handle passes through the slide groove and extends out above the box cover and is slidably connected in the slide groove.

6. The biological sample low-temperature transport box with adjustable cooling rate according to claim 5, characterized in that: The upper end of the adjustment handle is connected to a pointer knob, and the upper end surface of the box cover is provided with temperature scale lines distributed along the length direction of the fixed heat insulation board and located on one side of the pointer knob.

7. The biological sample low-temperature transport box with adjustable cooling rate according to claim 6, characterized in that: The pointer knob is rotatably connected to the adjustment handle, and the pointer knob has a strip-shaped structure. When the lower end of the sliding insulation plate is slidably connected to the lower slide rail, the lower end of the pointer knob is located in the slide groove, and when the length direction of the pointer knob is distributed along the length direction of the slide groove, the pointer knob can slide along the length direction of the slide groove. When the length of the pointer knob is distributed perpendicular to the length direction of the slide groove, the pointer knob is interference fit with the slide groove.

8. The biological sample low-temperature transport box with adjustable cooling rate according to claim 7, characterized in that: The distance between the lower end surface of the pointer knob and the upper end surface of the box cover is greater than the first height difference.

9. The biological sample low-temperature transport box with adjustable cooling rate according to claim 1, characterized in that: The upper end surface of the box cover is also provided with a temperature display, and the temperature display signal is connected to the temperature sensors located in the sample chamber and the refrigeration chamber.

10. The biological sample low-temperature transport box with adjustable cooling rate according to claim 1, characterized in that: A heat-insulating cover is arranged at the upper end of the refrigeration bin, and a sealing gasket is arranged between the heat-insulating cover, the fixed heat-insulating plate and the side wall of the box body.

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