Low-temperature testing device for research and development of cold-chain disinfectant

Abstract

The invention discloses a cold-chain disinfectant research and development low-temperature testing device which comprises a low-temperature environment box, the low-temperature environment box comprises a low-temperature chamber, a middle-temperature chamber and a high-temperature chamber which are sequentially arranged side by side in the middle, first heat insulation plates are arranged on the two sides of the middle-temperature chamber, and second heat insulation plates and three sets of bearing discs are installed at the tops and the bottoms of the two first heat insulation plates. The supporting plates are arranged in the low-temperature chamber, the middle-temperature chamber and the high-temperature chamber respectively and serve as microorganism culture medium containing platforms, the movable annular body is arranged on the outer side of the supporting plates, the disinfectant supply mechanism is arranged above the supporting plates, and the disinfectant supply mechanism comprises a pipeline assembly and three sets of guiding-out assemblies which are rotationally connected to the pipeline assembly and arranged side by side; the adjusting assembly is installed on the top of the second heat insulation plate on the upper portion. According to different temperature environments, multiple groups of comparison tests can be carried out at a time, the test efficiency is improved, and comprehensive disinfectant spraying can be synchronously carried out on the top surface, the side surface and the bottom surface of a culture medium placed on the bearing disc.

Description

Technical Field

[0001] The present invention relates to the technical field of testing devices, and in particular to a low-temperature testing device for the development of cold chain disinfectants. Background Art

[0002] Cold chain transportation usually involves low-temperature storage and transportation conditions. In addition, the activity of many disinfectants may be reduced in low-temperature environments. By conducting low-temperature tests on disinfectants, the actual disinfection effect of disinfectants in cold chain environments can be evaluated to ensure their effectiveness during transportation and storage. Among them, under different cold chain temperature transportation conditions, disinfectants may show different efficacy. Therefore, for the same type of disinfectant, it is usually necessary to conduct multiple groups of tests at different temperatures to ensure the accuracy and comparability of the test results. However, when the existing disinfectant low-temperature testing device conducts multiple groups of tests at different low temperatures to obtain the different effects of disinfectants in different temperature environments, it is often necessary to open the low-temperature environment box and put in new microbial culture media after the previous group of tests are completed, and then adjust the temperature for the next test. During the test, the door of the low-temperature environment box needs to be opened and closed frequently, and the overall duration of the comparative test is prolonged, thereby affecting the efficiency of the comparative test at different temperatures. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a low-temperature testing device for the research and development of cold chain disinfectants, so as to solve the problem of low efficiency when conducting comparative tests on cold chain disinfectants at different temperatures raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A low-temperature testing device for the development of cold chain disinfectants, comprising a low-temperature environment box, which comprises a low-temperature chamber, a medium-temperature chamber and a high-temperature chamber arranged side by side in the middle, and a first insulation board is arranged on both sides of the middle chamber, and a second insulation board is installed on the top and bottom of the two first insulation boards;

[0005] Three sets of supporting trays are respectively arranged inside the low-temperature chamber, the medium-temperature chamber and the high-temperature chamber and serve as platforms for placing microbial culture media;

[0006] A movable annular body, which is arranged on the outer side of the supporting tray;

[0007] A disinfectant supply mechanism is arranged above the tray, and includes a pipeline assembly and three groups of side-by-side outlet assemblies rotatably connected to the pipeline assembly;

[0008] The regulating component is installed on the top of a second insulation board at an upper position. When the pipeline component is driven to extend downward by the regulating component, the outlet component is controlled to be tightly connected with the movable annular body. When the regulating component drives the outlet component and the movable annular body to rotate at a constant speed, the microbial culture medium placed on the supporting tray is rotated circumferentially from the top, side and bottom surfaces to provide disinfectant.

[0009] Preferably, the outlet assembly includes a protective cover arranged above the movable annular body, a flat strip atomizing nozzle for spraying disinfectant onto the top surface of the supporting tray is arranged inside the protective cover, an inner wall on one side of the protective cover is provided with an inner cavity layer, and the tail end of the pipeline assembly is rotatably connected with a delivery conduit that passes through the protective cover and is interconnected with the flat strip atomizing nozzle and the inner cavity layer.

[0010] Preferably, the bottom of the protective cover is integrally connected with a guide outlet interconnected with the inner cavity layer, a guide structure for diverting the disinfectant delivered by the delivery catheter is installed in the middle of the inner cavity layer, and a vertical atomizing nozzle interconnected with the inside of the guide structure is plugged into the inner wall of the protective cover;

[0011] The guide structure is composed of a partition plate arranged in the middle of the inner cavity layer and a U-shaped ring installed at the bottom of the partition plate, and the bottom wall of the U-shaped ring is at the same height as the bottom wall of the vertical atomizing nozzle inlet.

[0012] Preferably, the movable annular body comprises a positioning ring fixedly mounted on the second top surface of a lower insulation plate, a limiting ring is rotatably sleeved on the positioning ring, a groove for docking with the guide outlet is provided on the limiting ring, an annular groove is provided on the top of the limiting ring, and the groove width and curvature of the annular groove are adapted to the width and curvature of the guide outlet;

[0013] The width of the groove gradually decreases from top to bottom, the depth of the annular groove gradually increases from one end to the other end, and the area where the annular groove is connected from end to end is communicated with the groove.

[0014] Preferably, the inner wall of the limit ring is installed with a transverse pipe interconnected with the groove, and the bottom height of the inner wall of the transverse pipe is lower than the bottom wall height of the groove, and two mirror-arranged flat strip atomizing nozzles 2 are installed on the top of the transverse pipe, and the net distance between the two flat strip atomizing nozzles 2 gradually increases from bottom to top.

[0015] Preferably, the pipeline assembly includes a supply pipeline extending into the interior of the low-temperature environment box, and the tail end of the supply pipeline is connected to three telescopic pipes arranged side by side;

[0016] The outer surface of the delivery conduit is provided with upright bars, and a control valve is provided on the delivery conduit.

[0017] Preferably, the adjustment component includes a lifting structure installed on the top wall of the low-temperature environment box and used to control the stretching length of the telescopic tube. Three gear rings arranged side by side are rotatably set on the top of the upper insulation board No. 2, and the gear rings are sleeved on the outer surfaces of the conveying duct and the upright bars. The outer surfaces of the three gear rings are connected with double-sided V-belts through tooth groove meshing, and the outer surfaces of the double-sided V-belts are connected with spur gears through tooth groove meshing. A motor is installed on the top of the upper insulation board No. 2 as a driving source for driving the export component to rotate.

[0018] Preferably, the support tray comprises a support column installed on the top surface of a lower insulation board, a plurality of steel rings arranged inside and outside are arranged above the support column, and a plurality of connecting steel bars arranged equidistantly in a ring shape are installed between two adjacent steel rings and between the innermost steel ring and the support column;

[0019] The heights of the steel rings gradually increase from the inside to the outside, and the connecting steel bars are arranged in an L shape.

[0020] Preferably, the bottom walls of the low-temperature chamber, the medium-temperature chamber and the high-temperature chamber are all provided with through grooves, and a waste liquid frame is provided between the bottom of a lower insulation board 2 and the bottom wall of the low-temperature environment box.

[0021] By means of the above technical solution, the present invention provides a low-temperature testing device for the development of cold chain disinfectants, which has at least the following beneficial effects:

[0022] 1. The present invention arranges a low-temperature chamber, a medium-temperature chamber and a high-temperature chamber inside the low-temperature environment box, and arranges a tray for placing microbial culture medium, and then sprays disinfectant, so as to perform multiple groups of comparative tests at a time for different temperature environments, thereby improving the test efficiency and the accuracy of the test results of cold chain disinfectants.

[0023] 2. The present invention sprays the top, side and bottom surfaces of the culture medium placed on the tray with a comprehensive disinfectant simultaneously by applying a microbial disinfectant to the tray. This can ensure that all surfaces of the culture medium are treated during low-temperature testing, thereby improving the reliability of test data and helping to accurately evaluate the effect of the disinfectant under cold chain conditions.

[0024] 3. The present invention closely connects the export assembly with the limit ring to form a relatively sealed space between the two and the positioning ring and the second insulation plate, thereby effectively reducing the interference of the external environment on the test results. At the same time, the disinfectant in the relatively sealed space can form a gas phase in the air, which helps to increase the effective concentration of the disinfectant and ensure that the disinfectant fully covers the surface of the culture medium.

[0025] 4. The present invention uses the coordinated application of the annular groove and the groove, and the guide piece rotates when descending, which can facilitate the accurate docking of the guide outlet with the groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the support tray of the present invention;

[0029] Figure 3 It is a schematic diagram of the cutaway structure of the movable annular body of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the regulating assembly of the present invention;

[0031] Figure 5 It is a schematic diagram of the partial cross-section structure of the export assembly of the present invention;

[0032] Figure 6 It is a schematic structural diagram of the inner cavity layer of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the low temperature environment box of the present invention.

[0034] In the figure:

[0035] 1. Low temperature environment box; 101. Low temperature chamber; 102. Medium temperature chamber; 103. High temperature chamber; 104. Insulation board 1; 105. Insulation board 2; 106. Through slot; 107. Waste liquid frame;

[0036] 2. Support tray; 201. Support column; 202. Steel ring; 203. Connecting steel bar;

[0037] 3. movable annular body; 301. positioning ring; 302. limiting ring; 3021. groove; 3022. annular groove; 303. transverse pipe; 3031. flat strip atomizing nozzle 2;

[0038] 4. Disinfectant supply mechanism; 401. Pipeline assembly; 4011. Supply pipeline; 4012. Telescopic tube; 402. Export assembly; 4021. Protective cover; 4022. Flat strip atomizing nozzle 1; 4023. Inner cavity layer; 4024. Delivery conduit; 4025. Export outlet; 4026. Guide structure; 4027. Vertical atomizing nozzle; 4028. Upright strip; 4029. Control valve;

[0039] 5. Adjustment assembly; 501. Lifting structure; 502. Gear ring; 503. Double-sided V-belt; 504. Spur gear; 505. Motor. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention.

[0041] Embodiment 1

[0042] See also Figure 1-Figure 7 , this embodiment proposes a low-temperature test device for the development of cold chain disinfectants, which can perform multiple groups of comparative tests at a time according to different temperatures, thereby effectively improving the accuracy of the test results of cold chain disinfectants. The low-temperature test device has a low-temperature environment box 1, which can be used to simulate the temperature between -60° and 0°, and create suitable test temperature conditions for the development of cold chain disinfectants. It includes a low-temperature chamber 101, a middle chamber 102 and a high-temperature chamber 103 arranged side by side in the middle, and an insulation board 104 is arranged on both sides of the middle chamber 102. The top and bottom of the two insulation boards 104 are installed with insulation boards 2 105. The internal temperature of the low-temperature chamber 101, the middle chamber 102 and the high-temperature chamber 103 is 0° or below, and the low-temperature environment box 1 is provided with a heating and cooling unit to respectively maintain the ambient temperature inside the low-temperature chamber 101, the middle chamber 102 and the high-temperature chamber 103, which is consistent with the prior art, so it will not be elaborated in detail. Setting three different temperature environments is convenient for subsequent comparative experiments on disinfectants in different temperature environments.

[0043] Under normal circumstances, when testing cold chain disinfectants, after the culture medium with microorganisms is placed inside the low-temperature environment box 1, the disinfectant is usually only sprayed on the upper surface of the culture medium to contact the microorganisms. However, spraying only on the surface of the culture medium may result in the disinfectant not being able to evenly cover the entire culture medium, especially the edges and bottom. This will cause the microorganisms in certain areas to fail to be effectively eliminated. During the test, these microorganisms will contaminate the surface of the culture medium again through air, contact, etc., thereby affecting the reliability of the test results. Therefore, in order to effectively ensure the comprehensiveness of the spraying of disinfectants on the surface of the culture medium, such as Figure 1-7As shown, three groups of trays 2 are respectively arranged inside the low-temperature chamber 101, the medium-temperature chamber 102 and the high-temperature chamber 103 and serve as platforms for placing microbial culture media, a movable annular body 3 is arranged on the outside of the tray 2, a disinfectant supply mechanism 4 is arranged above the tray 2, the disinfectant supply mechanism 4 includes a pipeline component 401 and three groups of side-by-side outlet components 402 rotatably connected to the pipeline component 401, and an adjustment component 5 is installed on the top of an upper insulation board 105. When the pipeline component 401 is driven to extend downward by the adjustment component 5, the outlet component 402 is controlled to be closely connected to the movable annular body 3. When the adjustment component 5 drives the outlet component 402 and the movable annular body 3 to rotate at a uniform speed, the disinfectant is supplied to the microbial culture media placed on the top, side and bottom surfaces of the tray 2 along the circumferential rotation. In actual application, by running the adjustment component 5, the export component 402 and the movable annular body 3 are closely connected, and under the continuous operation of the driving rotation function in the adjustment component 5, the export component 402 and the local structure in the movable annular body 3 are driven to rotate at a uniform speed, and at the same time, the disinfectant supply device connected to the pipeline component 401 is operated, so that the disinfectant is synchronously rotated and sprayed on the top, side and bottom surfaces of the microbial culture medium placed on the tray 2, thereby ensuring a more comprehensive disinfection effect. And in the low-temperature test, ensuring that all surfaces are processed can improve the reliability of the experimental data and help accurately evaluate the effect of the disinfectant under cold chain conditions. In addition, in actual cold chain transportation and storage, microorganisms may adhere to different surfaces. By simulating this situation in the experiment, the actual application effect of the disinfectant can be better evaluated.

[0044] Specifically, the outlet assembly 402 includes a protective cover 4021 disposed above the movable annular body 3. The bottom of the protective cover 4021 is provided with silicone or rubber to increase the sealing performance, in order to ensure that no disinfectant will overflow after the outlet assembly 402 is docked with the movable annular body 3. A flat strip atomizing nozzle 4022 for spraying disinfectant onto the top surface of the support tray 2 is disposed inside the protective cover 4021. An inner cavity layer 4023 is disposed on the inner wall of one side of the protective cover 4021. The tail end of the pipeline assembly 401 is rotatably connected to a delivery conduit 4024 that passes through the protective cover 4021 and is interconnected with the flat strip atomizing nozzle 4022 and the inner cavity layer 4023. The bottom of the protective cover 4021 is integrally connected to an outlet assembly 4024 that is interconnected with the inner cavity layer 4023. Port 4025, a guide structure 4026 for diverting the disinfectant transported by the delivery conduit 4024 is installed in the middle of the inner cavity layer 4023, a vertical atomizing nozzle 4027 interconnected with the inner part of the guide structure 4026 is inserted into the inner wall of the protective cover 4021, and the guide structure 4026 is composed of a partition arranged in the middle of the inner cavity layer 4023 and a U-shaped ring installed at the bottom of the partition, and the bottom wall of the U-shaped ring is at the same height as the bottom wall of the vertical atomizing nozzle 4027 inlet. The delivery duct 4024, the inner cavity layer 4023, the vertical atomizing nozzle 4027 and the outlet 4025 are interconnected. Therefore, after the outlet component 402 is docked with the movable annular body 3, the disinfectant inside the delivery duct 4024 will continue to flow into the inner cavity layer 4023, and will disperse and flow into the vertical atomizing nozzle 4027 and the movable annular body 3, ensuring the subsequent effective spraying of the disinfectant on the side and bottom of the supporting tray 2.

[0045] Embodiment 2

[0046] Since the culture medium with microorganisms is tested for the effect of disinfectants in a non-confined space, it is easy to be disturbed by the external environment. In order to effectively ensure the stability of the cold chain disinfectant test environment, Figure 3 and Figure 5As shown, the movable annular body 3 includes a positioning ring 301 fixedly mounted on the top surface of a lower insulation board 105, and a limiting ring 302 is rotatably sleeved on the positioning ring 301, so that the limiting ring 302 is subjected to the rotational force and performs a circumferential rotation relative to the positioning ring 301. A groove 3021 for docking with the outlet 4025 is provided on the limiting ring 302, and the width of the groove 3021 gradually decreases from top to bottom, so that the flow rate of the disinfectant entering the groove 3021 is accelerated, thereby increasing the injection force during subsequent spraying to a certain extent and increasing the atomization effect. An annular groove 3022 is provided on the top of the limiting ring 302, and the groove width and curvature of the annular groove 3022 are adapted to the width and curvature of the outlet 4025, and the depth of the annular groove 3022 gradually increases from one end to the other, and the end-to-end area of ​​the annular groove 3022 is connected to the groove 3021. Through the coordinated application of the annular groove 3022 and the groove 3021, the guide assembly 402 can rotate when descending, so that the guide port 4025 can be accurately connected with the groove 3021. At this time, the bottom of the protective cover 4021 fits tightly with the top of the limiting ring 302, so that a relatively sealed space is formed between the two as well as the positioning ring 301 and the insulation plate 105, thereby effectively reducing the interference of the external environment on the test results and ensuring the accuracy of the test. At the same time, the disinfectant in the relatively sealed space can form a gas phase in the air, which helps to increase the effective concentration of the disinfectant and ensure that the disinfectant fully covers the surface of the culture medium.

[0047] Embodiment 3

[0048] In the conventional vertical upward spraying method of disinfectant, since the cross-section of the rod body in the tray 2 is circular, the bottom surface of the culture medium is relatively covered. In order to effectively improve the comprehensiveness of the disinfectant spraying on the bottom surface of the microbial culture medium placed on the tray 2, as shown in FIG. Figure 3 As shown, the inner wall of the limit ring 302 is installed with a transverse pipe 303 interconnected with the groove 3021, and the bottom height of the inner wall of the transverse pipe 303 is lower than the bottom wall height of the groove 3021. Two flat strip atomizing nozzles 3031 arranged in mirror image are installed on the top of the transverse pipe 303, and the net spacing between the two flat strip atomizing nozzles 3031 gradually increases from bottom to top. The disinfectant is supplied to the inside of the disinfectant supply mechanism 4, and the rotation of the limit ring 302 is controlled to enable the two flat strip atomizing nozzles 3031 to realize dynamic spraying of the disinfectant, promote the flow and diffusion of the disinfectant on the bottom surface of the culture medium, and at the same time, the two flat strip atomizing nozzles 3031 are alternates, so that the disinfectant can better cover the area where the culture medium contacts the grid, and improve the comprehensiveness of the disinfectant spraying on the bottom surface of the culture medium.

[0049] Embodiment 4

[0050] In conventional situations, by moving the protective cover 4021 downward, it is not possible to accurately extend the outlet 4025 into the groove 3021 on the limiting ring 302. In order to ensure that the outlet 4025 is accurately connected with the groove 3021 and the protective cover 4021 is almost seamlessly connected with the top surface of the limiting ring 302, as shown in FIG. Figure 1 and Figure 4 , Figure 5 As shown, the pipeline assembly 401 includes a supply pipeline 4011 extending into the interior of the low-temperature environment box 1, and the tail end of the supply pipeline 4011 is connected to three telescopic tubes 4012 arranged side by side, and the adjustment assembly 5 includes a lifting structure 501 installed on the top wall of the low-temperature environment box 1 and used to control the stretching length of the telescopic tube 4012. The lifting structure 501 is any one of a hydraulic cylinder, a cylinder, an electric telescopic rod, etc., and is intended to have a lifting function. In actual application, by running the lifting structure 501, it itself shrinks upward or extends downward, and the comprehensive length of the telescopic tube 4012 connected to its output end can be adjusted accordingly, and at the same time, an upward pulling force or a downward pushing force is generated on the export assembly 402, so as to control the height position of the export assembly 402 to be adjusted up and down. Therefore, when the lifting structure 501 is pushed downward by a certain amount, the bottom of the export assembly 402 can be made equal to the top of the limit ring 302.

[0051] Specifically, an upright bar 4028 is installed on the outer surface of the conveying conduit 4024, and a control valve 4029 is installed on the conveying conduit 4024. Three gear rings 502 arranged side by side are rotatably installed on the top of the upper insulation board 105, and the gear rings 502 are sleeved on the outer surfaces of the conveying conduit 4024 and the upright bar 4028. The outer surfaces of the three gear rings 502 are connected with double-sided V-belts 503 through tooth groove engagement, and the outer surfaces of the double-sided V-belts 503 are connected with spur gears 504 through tooth groove engagement. A motor 505 serving as a driving source for driving the export component 402 to rotate is installed on the top of the upper insulation board 105. In actual application, by running the motor 505, the spur gear 504 is driven to rotate at a uniform speed for a set number of circles, and the double-sided V-belt 503 is driven to rotate synchronously, thereby generating a rotational force on the three gear rings 502, thereby controlling the conveying conduit 4024 with the upright bars 4028 to rotate at a uniform speed along the outer surface of the bottom of the telescopic tube 4012. Based on this, the overall structure of the export assembly 402 rotates at a uniform speed.

[0052] When docking the protective cover 4021 and the limiting ring 302, first control the lifting structure 501 to move downward so that the bottom of the guide outlet 4025 extends to the inside of the annular groove 3022, and then continue to operate the lifting structure 501 and cooperate with the motor 505 to control the guide assembly 402 to rotate in the direction of gradually increasing depth of the annular groove 3022 until the bottom of the guide outlet 4025 penetrates into the range of the groove 3021, thereby completing the accurate docking of the guide outlet 4025 and the groove 3021. At this time, the inner walls on both sides of the groove 3021 are arranged in a high and low arrangement. Therefore, in the process of continuous operation of the motor 505 to control the rotation of the protective cover 4021, the outlet 4025 can transmit the rotational force to the limit ring 302, and the disinfectant supply device externally connected to one end of the supply pipe 4011 is enabled, thereby controlling the limit ring 302 and its related structures to rotate along the positioning ring 301. The flat strip atomizing nozzle 1 4022, the vertical atomizing nozzle 4027 and the flat strip atomizing nozzle 2 3031 are respectively used to rotate circumferentially spray the disinfectant along the top, side and bottom surfaces of the supporting tray 2, with the center of the supporting tray 2 as the fixed point, thereby ensuring that the disinfectant can fully act on all possible microbial habitats, achieving a comprehensive disinfection effect, improving the reliability of the experimental data, and helping to accurately evaluate the effect of the disinfectant under cold chain conditions.

[0053] Embodiment 5

[0054] Under normal circumstances, the top surface of the platform for placing microbial culture medium is of the same height at all places. After the culture medium is placed on the tray 2, if the low-temperature environment box 1 is slightly shaken or tilted, the culture medium is likely to slide, thus affecting the test results. In order to effectively improve the stability of the culture medium placed inside the low-temperature environment box 1, Figure 1 and Figure 2 As shown, the tray 2 includes a support column 201 installed on the top surface of a lower insulation board 105, and a plurality of steel rings 202 arranged inside and outside are arranged above the support column 201. A plurality of connecting steel bars 203 arranged in an annular shape and equidistantly are installed between two adjacent steel rings 202 and between the innermost steel ring 202 and the support column 201. The heights of the plurality of steel rings 202 gradually increase from the inside to the outside, and the connecting steel bars 203 are arranged in an L shape. The entire tray 2 is made of a rigid material, so that its stability can be fully guaranteed. In addition, the top surface of the horizontal section of a single set of steel rings 202 and a circle of connecting steel bars 203 on the outside form a plane of the same height, which can be used for placing microbial culture media. In addition, with the vertical section of this circle of connecting steel bars 203 and a steel ring 202 on the outside, the internal plane produces a height difference and protection, thereby effectively preventing the culture media from slipping, and this form of the tray 2 can adapt to the safe placement of culture media of various sizes.

[0055] Embodiment 6

[0056] In the first embodiment, when the disinfectant supply mechanism 4 sprays the disinfectant circumferentially onto the culture medium placed on the tray 2, there is usually excess disinfectant. Figure 1 and Figure 7 As shown, through grooves 106 are provided on the bottom walls of the low-temperature chamber 101, the medium-temperature chamber 102 and the high-temperature chamber 103, so that the excess disinfectant accumulated under the supporting tray 2 can be discharged downward from the specific environmental chamber along the through grooves 106, and then enter the waste liquid frame 107 provided between the bottom of a lower insulation board 105 and the bottom wall of the low-temperature environmental box 1 along a specific path, thereby completing the collection of the waste liquid.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low temperature testing device for the development of cold chain disinfectants, characterized by: The invention comprises a low temperature environment box (1), which comprises a low temperature chamber (101), a middle temperature chamber (102) and a high temperature chamber (103) which are sequentially arranged side by side in the middle, a first insulation board (104) is arranged on both sides of the middle temperature chamber (102), and a second insulation board (105) is installed on the top and bottom of the two first insulation boards (104); Three sets of supporting trays (2) are respectively arranged inside the low temperature chamber (101), the medium temperature chamber (102) and the high temperature chamber (103) and serve as platforms for placing microbial culture media; A movable annular body (3) arranged on the outer side of the supporting tray (2); A disinfectant supply mechanism (4) is arranged above the support tray (2), and the disinfectant supply mechanism (4) comprises a pipeline assembly (401) and three groups of outlet assemblies (402) arranged side by side and rotatably connected to the pipeline assembly (401); The regulating component (5) is installed on the top of a second insulation board (105) at the upper side. When the pipeline component (401) is driven to extend downward by the regulating component (5), the outlet component (402) is controlled to be tightly connected with the movable annular body (3). When the regulating component (5) drives the outlet component (402) and the movable annular body (3) to rotate at a constant speed, the microbial culture medium placed on the supporting tray (2) is rotated circumferentially from the top, side and bottom surfaces to provide disinfectant.

2. A low temperature testing device for cold chain disinfectant development according to claim 1, characterized in that: The outlet assembly (402) comprises a protective cover (4021) arranged above the movable annular body (3); a flat strip-shaped atomizing nozzle (4022) for spraying disinfectant onto the top surface of the supporting tray (2) is arranged inside the protective cover (4021); an inner cavity layer (4023) is arranged on an inner wall of one side of the protective cover (4021); and a delivery conduit (4024) is rotatably connected at the rear end of the pipeline assembly (401) and passes through the protective cover (4021) and is interconnected with the flat strip-shaped atomizing nozzle (4022) and the inner cavity layer (4023).

3. A low temperature testing device for cold chain disinfectant development according to claim 2, characterized in that: The bottom of the protective cover (4021) is integrally connected with a guide outlet (4025) that is interconnected with the inner cavity layer (4023); a guide structure (4026) for diverting the disinfectant delivered by the delivery conduit (4024) is installed in the middle of the inner cavity layer (4023); and a vertical atomizing nozzle (4027) that is interconnected with the inside of the guide structure (4026) is plugged into the inner wall of the protective cover (4021); The guide structure (4026) is composed of a partition plate arranged in the middle of the inner cavity layer (4023) and a U-shaped ring installed at the bottom of the partition plate, and the bottom wall of the U-shaped ring is at the same height as the bottom wall of the inlet of the vertical atomizing nozzle (4027).

4. A low temperature testing device for cold chain disinfectant development according to claim 1 or 2, characterized in that: The movable annular body (3) comprises a positioning ring (301) fixedly mounted on the top surface of a lower insulation plate 2 (105); a limiting ring (302) is rotatably sleeved on the positioning ring (301); a groove (3021) for docking with the guide outlet (4025) is provided on the limiting ring (302); an annular groove (3022) is provided on the top of the limiting ring (302); and the groove width and curvature of the annular groove (3022) are adapted to the width and curvature of the guide outlet (4025); The width of the groove (3021) gradually decreases from top to bottom, the depth of the annular groove (3022) gradually increases from one end to the other, and the end-to-end area of ​​the annular groove (3022) is connected to the groove (3021).

5. A low temperature testing device for cold chain disinfectant development according to claim 4, characterized in that: The inner wall of the limiting ring (302) is provided with a transverse pipe (303) interconnected with the groove (3021), and the bottom height of the inner wall of the transverse pipe (303) is lower than the bottom wall height of the groove (3021), and two flat strip atomizing nozzles (3031) arranged in a mirror image are provided on the top of the transverse pipe (303), and the net distance between the two flat strip atomizing nozzles (3031) gradually increases from bottom to top.

6. A low temperature testing device for cold chain disinfectant development according to claim 1, characterized in that: The pipeline assembly (401) comprises a supply pipeline (4011) extending into the interior of the low-temperature environment box (1), and the tail end of the supply pipeline (4011) is connected to three telescopic pipes (4012) arranged side by side; The outer surface of the delivery conduit (4024) is installed with a vertical bar (4028), and a control valve (4029) is installed on the delivery conduit (4024).

7. A low temperature testing device for cold chain disinfectant development according to claim 1, characterized in that: The adjustment component (5) comprises a lifting structure (501) installed on the top wall of the low-temperature environment box (1) and used to control the stretching length of the telescopic tube (4012); three gear rings (502) arranged side by side are rotatably arranged on the top of the second insulation board (105) above, and the gear rings (502) are sleeved on the outer surfaces of the conveying conduit (4024) and the upright bar (4028); the outer surfaces of the three gear rings (502) are connected to double-sided V-belts (503) through tooth groove meshing; the outer surfaces of the double-sided V-belts (503) are connected to spur gears (504) through tooth groove meshing; and a motor (505) serving as a driving source for driving the export component (402) to rotate is installed on the top of the second insulation board (105) above.

8. A low temperature testing device for cold chain disinfectant development according to claim 1, characterized in that: The support tray (2) comprises a support column (201) installed on the top surface of a lower insulation plate 2 (105), a plurality of steel rings (202) arranged inside and outside are arranged above the support column (201), and a plurality of connecting steel bars (203) arranged equidistantly in a ring shape are installed between two adjacent steel rings (202) and between the innermost steel ring (202) and the support column (201); The heights of the plurality of steel rings (202) gradually increase from the inside to the outside, and the connecting steel bars (203) are arranged in an L shape.

9. A low temperature testing device for developing cold chain disinfectants according to claim 1, characterized in that: The bottom walls of the low temperature chamber (101), the medium temperature chamber (102) and the high temperature chamber (103) are all provided with through grooves (106), and a waste liquid frame (107) is provided between the bottom of a lower insulation board 2 (105) and the bottom wall of the low temperature environment box (1).

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