Plateau environment test box

Abstract

The utility model relates to the technical field of test boxes, and provides a plateau environment test box which comprises a shell. The supporting base is used for supporting the PCR amplification instrument and is arranged in the shell cavity; the supporting base is arranged in a liftable mode. An auxiliary supporting plate is arranged on the lower end face of the supporting base in a flush mode and connected with the shell cavity in an inserted mode. And the air pressure device is used for controlling the internal and external pressure difference and is communicated with the shell cavity. According to the utility model, the support base is used for accommodating and bearing the PCR amplification instrument, and meanwhile, the problems that the PCR amplification instrument shakes during use, so that the test result is inaccurate and the PCR amplification instrument needs to be corrected for multiple times can be avoided. And by arranging the auxiliary supporting plate, the stability of the device is improved, and shaking is avoided.

Description

Technical Field

[0001] This utility model relates to the field of test chamber technology, and more specifically, to a high-altitude environment test chamber. Background Technology

[0002] The pressure in high-altitude areas is much lower than in plains areas, which can lead to errors in the experimental results of precision instruments (such as PCR amplifiers) when operators work under low pressure. This is because the working principle of PCR amplifiers relies on precise temperature cycling to replicate DNA fragments. In a low-pressure environment, the use of gases during PCR affects the gas flow rate and pressure stability; furthermore, the boiling point of the reagents used in the process decreases, thus affecting the accuracy of temperature control during the reaction.

[0003] For example, the patent with publication number CN213699914U discloses a new type of high-altitude low-pressure test chamber, which only solves the problem of pressure difference between the inside and outside of the test chamber by setting pressure sensors and vacuum pumps, but cannot meet the problem of instrument stability before and after operation. Utility Model Content

[0004] The purpose of this invention is to provide a high-altitude environment test chamber to solve the problem of large errors in the test results of precision instruments caused by low atmospheric pressure environments. This invention is achieved through the following technical solution:

[0005] This utility model provides a high-altitude environment test chamber, comprising:

[0006] shell;

[0007] The support base is used to support the PCR amplification instrument. The support base is built into the outer shell cavity. The support base can be raised and lowered. An auxiliary support plate is flush with the lower end surface of the support base and is inserted into the outer shell cavity.

[0008] A pneumatic device used to control the pressure difference between the inside and outside, the pneumatic device is connected to the outer shell cavity.

[0009] According to some preferred embodiments, the pneumatic device includes a vacuum pressure sensor built into the outer shell cavity, a pressure relief pipe communicating with the outer shell cavity, and a vacuum pump communicating with the outer shell cavity.

[0010] According to some preferred embodiments, the test chamber includes a control component, which includes a controller and an electronic display screen. The controller is electrically connected to a vacuum pressure sensor, a vacuum pump, a pressure relief valve on a pressure relief pipe, and the electronic display screen. The electronic display screen is mounted on the surface of the outer casing. The controller can be a microcontroller (e.g., an 8051 series microcontroller, an STM32 series microcontroller), an FPGA programmable controller, etc.

[0011] According to some preferred embodiments, the support base is connected to the inner bottom end of the housing via a hydraulic rod.

[0012] According to some preferred embodiments, multiple grooves are formed parallel to each other on the side wall of the outer shell cavity, and the auxiliary support plate is inserted into the grooves.

[0013] According to some preferred embodiments, the surface of the support base is provided with a receiving groove for a PCR amplification instrument, and a rubber ring is attached to the periphery of the receiving groove.

[0014] According to some preferred embodiments, the housing includes a shell and an L-shaped cover, which are hinged together.

[0015] According to some preferred embodiments, the periphery of the opening of the housing is covered with a rubber groove, and the cover edge of the housing is closed with the rubber groove.

[0016] According to some preferred embodiments, the housing and the cover are fastened together or connected by screws.

[0017] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0018] In this invention, a support base is used to house and support the PCR amplification instrument, while also preventing the instrument from shaking during use, which could lead to inaccurate test results and the need for multiple calibrations. A pneumatic device is used to maintain the internal pressure of the housing. This device includes a vacuum pressure sensor that monitors the pressure inside the housing in real time, ensuring that the pressure remains stable at a constant value, thus meeting the environmental pressure requirements for PCR amplification instrument operation. The support base is height-adjustable for easy movement and maintenance of the PCR amplification instrument. However, even with the height-adjustable support base, shaking can still occur. Therefore, an auxiliary support plate is added to improve the stability of the instrument and prevent shaking. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the external structure of the high-altitude environment test chamber provided in this embodiment of the utility model;

[0021] Figure 2A schematic diagram of the internal structure of the high-altitude environment test chamber provided in this embodiment of the utility model;

[0022] Figure 3 for Figure 2 A schematic diagram of the structure of the central support base in a top view.

[0023] Reference numerals: 1-Outer shell, 2-Support base, 3-Auxiliary support plate, 4-Vacuum pressure sensor, 5-Pressure relief pipe, 6-Vacuum pump, 7-Electronic display screen, 8-Hydraulic rod, 9-Groove, 10-Receiving groove, 11-Rubber ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] like Figure 1-3 As shown, this embodiment provides a high-altitude environment test chamber, including an outer shell 1, a support base 2, and an air pressure device. Specifically:

[0031] The support base 2 is used to support the PCR amplification instrument. The support base 2 is built into the cavity of the outer shell 1. The support base 2 can be raised and lowered. An auxiliary support plate 3 is flush with the lower end surface of the support base 2 and is inserted into the cavity of the outer shell 1.

[0032] A pneumatic device used to control the pressure difference between the inside and outside, the pneumatic device is connected to the outer shell cavity 1.

[0033] As mentioned above, the support base 2 is used to house and support the PCR amplification instrument, while also preventing the instrument from shaking during use, which could lead to inaccurate test results and the need for multiple calibrations. The support base 2 is height-adjustable to facilitate movement and maintenance of the PCR amplification instrument. However, even with the height-adjustable support base 2, shaking still occurs due to its support alone. Therefore, an auxiliary support plate 3 is added to improve the instrument's stability and prevent shaking.

[0034] In this utility model, the pneumatic device includes a vacuum pressure sensor 4 built into the cavity of the outer shell 1, a pressure relief pipe 5 connected to the cavity of the outer shell 1, and a vacuum pump 6 connected to the cavity of the outer shell 1.

[0035] In this invention, the test chamber includes a control component, which comprises a controller and an electronic display screen 7. The controller is electrically connected to the vacuum pressure sensor 4, the vacuum pump 6, the pressure relief valve on the pressure relief pipe 5, and the electronic display screen 7. The electronic display screen is mounted on the surface of the outer casing 1. The electronic display screen facilitates monitoring of the pressure difference between the inside and outside of the test chamber, and the vacuum pressure sensor 4 is used to maintain and adjust the pressure difference between the inside and outside of the test chamber in real time.

[0036] In this invention, the support base 2 is connected to the inner bottom end of the outer casing 1 via hydraulic rods 8. Alternatively, multiple hydraulic rods 8 or auxiliary rods can be used to improve lifting stability and stability at a certain height.

[0037] In this invention, multiple grooves 9 are parallel to each other on the side wall of the outer shell 1 (only one is shown in the figure), and the auxiliary support plate 3 is inserted into the grooves 9. The multiple grooves 9 facilitate the stability of the support base 2 while maintaining adjustable height.

[0038] In this invention, the surface of the support base 2 is provided with a receiving groove 10 for a PCR amplification instrument, and a rubber ring 11 is attached to the periphery of the receiving groove 10. The receiving groove 10 further accommodates the PCR amplification instrument, while the rubber ring 11 prevents shaking and avoids damage to the PCR amplification instrument from impacts.

[0039] In this invention, the outer shell 1 includes a shell and an L-shaped cover, which are hinged together. The L-shaped cover helps to prevent bumps and knocks when opening the test chamber, particularly when opening the PCR amplification instrument.

[0040] In this invention, the periphery of the opening of the shell is covered with a rubber groove, and the edge of the shell cover closes with the rubber groove. The rubber protrusion further enhances the sealing effect.

[0041] In this invention, the shell and the cover are fastened together or connected by screws. The aforementioned connection method facilitates further airtightness.

[0042] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high altitude environment test chamber, characterized by, Include: The shell; Supporting base for supporting PCR amplification instrument, supporting base is built in shell cavity; Supporting base can be lifted and arranged; The lower end surface of the supporting base is flush with the auxiliary support plate, and the auxiliary support plate is inserted with the shell cavity. The air pressure device for controlling the pressure difference between inside and outside, the air pressure device is communicated with the shell cavity.

2. The high altitude environment test chamber of claim 1, wherein, The air pressure device includes a vacuum pressure sensor built in the shell cavity, a pressure relief pipe communicated with the shell cavity, and a vacuum pump communicated with the shell cavity.

3. The high altitude environment test chamber of claim 2, wherein, The test chamber includes a control assembly, which includes a controller and an electronic display screen, the controller is respectively connected with the vacuum pressure sensor, the vacuum pump, the pressure relief valve on the pressure relief pipe and the electronic display screen; The electronic display is installed on the surface of the shell.

4. The high altitude environment test chamber of claim 1, wherein, The supporting base is connected with the inner bottom end of the shell through the hydraulic rod.

5. The high altitude environment test chamber of claim 1, wherein, The side wall of the shell cavity is parallelly provided with a plurality of grooves, and the auxiliary support plate is inserted with the grooves.

6. The high altitude environment test chamber according to any one of claims 1 to 5, characterized in that, The surface of the supporting base is provided with a containing groove for the PCR amplification instrument, and the containing groove is provided with a rubber ring.

7. The high altitude environment test chamber according to any one of claims 1 to 5, characterized in that, The shell includes a shell and an L-shaped shell cover, and the shell and the shell cover are hinged.

8. The high altitude environment test chamber of claim 7, wherein, The opening of the shell is covered with a rubber groove, and the cover of the shell cover is closed with the rubber strip.

9. The high altitude environment test chamber of claim 7, wherein, The shell and the shell cover are buckled or connected through a screw rod.

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