Liquid nitrogen defrosting mechanism of AGV

Abstract

The utility model relates to the technical field of AGVs (Automatic Guided Vehicles), in particular to a liquid nitrogen defrosting mechanism of an AGV, which comprises a trolley body, a lifting frame movably arranged in the storage bin and used for placing a sample box, and a liquid nitrogen defrosting mechanism of the AGV, the defrosting bin is arranged on one side of the storage bin, is connected with the storage bin through a communicating pipe and is used for defrosting the sample box; the mechanical arm is arranged on the trolley body and is used for transferring the sample box; the defrosting bin is arranged on the trolley body, the lifting assembly is arranged on the defrosting bin, the lifting assembly can serve as a sealing cover at the beginning to seal the defrosting bin and avoid cold air leakage, after the sample box is placed, the lifting assembly can descend, and liquid nitrogen is sprayed to the bottom of the sample box through the liquid nitrogen tank for defrosting. And the two-dimensional code can be conveniently exposed.

Description

Technical Field

[0001] The utility model relates to the technical field of AGV trolleys, in particular to a liquid nitrogen defrosting mechanism of an AGV trolley. Background Art

[0002] With the development of science and technology, automated storage equipment is being used more and more widely in various fields, especially in the fields of medical care and biological sample preservation. Automated storage equipment can greatly improve storage efficiency and accuracy.

[0003] Currently, there are various cryogenic storage methods for biological samples, which are widely used in hospitals, biobanks, epidemic prevention stations, research institutes, and other institutions. However, the temperature and humidity of the sample environment cannot be guaranteed during the storage and retrieval process. Moreover, biological samples are exposed to air during retrieval, which increases the temperature of the samples and poses a risk of damage. Furthermore, when the cryopreservation box is brought from a low-temperature environment to a room temperature environment, frost will form. In particular, frost will obscure the QR code on the bottom of the cryopreservation box, making it difficult to scan the code. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned deficiencies and provide a liquid nitrogen defrosting mechanism for an AGV.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A liquid nitrogen defrosting mechanism for an AGV vehicle comprises a vehicle body, a control module is provided at the front end of the vehicle body, a storage bin is provided at the top of the vehicle body, and further comprises:

[0007] A lifting rack, movably arranged in the storage compartment, for placing the sample box;

[0008] The defrost bin is provided on one side of the storage bin and is connected to the storage bin via a connecting pipe, and is used for defrosting the sample box;

[0009] The robotic arm is arranged on the trolley body and is used to transfer the sample box.

[0010] Furthermore, a screw is rotatably provided in the storage bin, a placement platform is provided in the lifting frame, and lifting sliders sleeved on the screw are provided on both sides of the lifting frame.

[0011] Furthermore, a lifting assembly is provided in the defrost bin for driving the sample box to rise and fall.

[0012] Furthermore, the lifting assembly includes a lifting platform movably arranged in the defrost bin, a bidirectional threaded rod is rotatably arranged in the lifting platform, brackets are arranged at both ends of the lifting platform, and a limiting slider is arranged at the bottom end of the bracket and is sleeved on the bidirectional threaded rod.

[0013] Furthermore, support frames are provided at both ends of the lifting platform, an electric telescopic rod is provided at the bottom end of the support frame, and one end of the electric telescopic rod away from the support frame is connected to the trolley body.

[0014] Furthermore, a liquid nitrogen tank is provided at the bottom of the trolley body, and a first air inlet pipe and a second air inlet pipe are provided on the liquid nitrogen tank. The end of the first air inlet pipe away from the liquid nitrogen tank is connected to the storage bin, and the end of the second air inlet pipe away from the liquid nitrogen tank is connected to the defrost bin.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model is provided with a defrost bin on the trolley body and a lifting assembly on the defrost bin, wherein the lifting platform can initially serve as a sealing cover to seal the defrost bin to prevent cold air from leaking out; after the sample box is placed, the lifting assembly will descend, and the liquid nitrogen tank will be used to spray liquid nitrogen on the bottom of the sample box for defrosting, so as to facilitate exposing the QR code. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 It is a structural diagram of the lifting frame of the utility model;

[0021] Figure 4 It is a structural diagram of the lifting assembly of the utility model.

[0022] In the figure: 1. Trolley body; 2. Control module; 3. Storage bin; 31. Lead screw; 4. Lifting frame; 41. Placement table; 42. Lifting slider; 5. Defrost bin; 50. Connecting pipe; 6. Lifting assembly; 61. Lifting platform; 62. Bidirectional threaded rod; 63. Bracket; 64. Limiting slider; 65. Support frame; 66. Electric telescopic rod; 7. Robotic arm; 8. Liquid nitrogen tank; 81. First air inlet pipe; 82. Second air inlet pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] Reference Figures 1-4 As shown, a liquid nitrogen defrosting mechanism for an AGV vehicle includes a vehicle body 1. A control module 2 is provided at the front end of the vehicle body 1. The control module 2 includes a battery module and various sensors for automatic movement. A storage bin 3 is provided on the top of the vehicle body 1. The following components are also provided:

[0026] A lifting frame 4 is movably disposed in the storage compartment 3, and a plurality of placement tables 41 are provided in the lifting frame 4 for placing sample boxes;

[0027] The defrost bin 5 is provided on one side of the storage bin 3 and is connected to the storage bin 3 via a connecting pipe 50. The defrost bin 5 maintains a low temperature environment within the storage bin 3 and is used to defrost the sample box, especially the QR code at the bottom of the sample box.

[0028] The robotic arm 7 is provided on the trolley body 1 and is used for transferring the sample box.

[0029] In one embodiment, a screw 31 is rotatably provided in the storage bin 3, and lifting sliders 42 are provided on both sides of the lifting frame 4 and are sleeved on the screw 31. The lifting frame 4 is mainly close to the top of the storage bin 3, so that when the lifting frame 4 moves up, the placement table 41 on the top can be exposed first, and then the sample box can be taken out, and the bottom part of the lifting frame 4 can also seal the storage bin 3.

[0030] In one embodiment, a lifting assembly 6 is further provided in the defrost bin 5 for driving the sample box to rise and fall;

[0031] After the robotic arm 7 places the sample box on the lifting assembly 6, the lifting assembly 6 can drive the sample box to descend and enter the defrost bin 5, so as to facilitate defrosting the QR code at the bottom of the sample box.

[0032] In one embodiment, the lifting assembly 6 includes a lifting platform 61 movably disposed in the defrost bin 5, a bidirectional threaded rod 62 rotatably disposed in the lifting platform 61, brackets 63 disposed at both ends of the lifting platform 61, and a limiting slider 64 disposed at the bottom end of the bracket 63 and sleeved on the bidirectional threaded rod 62;

[0033] First, adjust the distance between the brackets 63 on both sides according to the size of the sample box. By rotating the bidirectional threaded rod 62, the bracket 63 can be driven to move. Then, the sample box is placed on the bracket 63 through the robotic arm 7. There is a certain distance between the bracket 63 and the lifting platform 61, which can mainly expose the QR code at the bottom of the sample box to facilitate defrosting.

[0034] In one embodiment, support frames 65 are provided at both ends of the lifting platform 61, and an electric telescopic rod 66 is provided at the bottom end of the support frame 65. The end of the electric telescopic rod 66 away from the support frame 65 is connected to the trolley body 1;

[0035] A detector is also provided on the lifting platform 61. After the sample box is placed on it, the electric telescopic rod 66 will automatically retract, allowing the lifting platform 61 to descend.

[0036] In one embodiment, a liquid nitrogen tank 8 is further provided at the bottom of the trolley body 1 for spraying liquid nitrogen into the storage bin 3 and the defrost bin 5 to maintain a low temperature. After the sample box is placed in the defrost bin 5, the QR code at the bottom of the sample box can also be defrosted by liquid nitrogen. A first air inlet pipe 81 and a second air inlet pipe 82 are provided on the liquid nitrogen tank 8. The end of the first air inlet pipe 81 away from the liquid nitrogen tank 8 is connected to the storage bin 3, and the end of the second air inlet pipe 82 away from the liquid nitrogen tank 8 is connected to the defrost bin 5.

[0037] A check valve can be provided on the connecting pipe 50 to allow cold air to enter the storage bin 3 from the defrost bin 5 . In this way, after the sample box is defrosted, cold air will enter the storage bin 3 to maintain a low temperature environment in the storage bin 3 .

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A liquid nitrogen defrosting mechanism for an AGV vehicle, comprising a vehicle body (1), a control module (2) being provided at the front end of the vehicle body (1), and a storage bin (3) being provided at the top of the vehicle body (1), characterized in that: Also includes: A lifting frame (4) is movably arranged in the storage compartment (3) and is used to place the sample box; A defrost bin (5) is provided on one side of the storage bin (3), connected to the storage bin (3) via a connecting pipe (50), and is used for defrosting the sample box; A mechanical arm (7) is provided on the trolley body (1) and is used for transferring the sample box.

2. The liquid nitrogen defrosting mechanism of an AGV according to claim 1, characterized in that: A screw (31) is rotatably provided in the storage bin (3), a placement platform (41) is provided in the lifting frame (4), and lifting sliders (42) sleeved on the screw (31) are provided on both sides of the lifting frame (4).

3. The liquid nitrogen defrosting mechanism of an AGV according to claim 1, characterized in that: A lifting assembly (6) is also provided in the defrost bin (5) for driving the sample box to rise and fall.

4. The liquid nitrogen defrosting mechanism of an AGV according to claim 3, characterized in that: The lifting assembly (6) comprises a lifting platform (61) movably arranged in the defrost bin (5), a bidirectional threaded rod (62) rotatably arranged in the lifting platform (61), brackets (63) are arranged at both ends of the lifting platform (61), and a limiting slider (64) is arranged at the bottom end of the bracket (63) and is sleeved on the bidirectional threaded rod (62).

5. The liquid nitrogen defrosting mechanism of the AGV according to claim 4, characterized in that: Support frames (65) are provided at both ends of the lifting platform (61), and an electric telescopic rod (66) is provided at the bottom end of the support frame (65). The end of the electric telescopic rod (66) away from the support frame (65) is connected to the trolley body (1).

6. The liquid nitrogen defrosting mechanism of an AGV according to claim 1, characterized in that: A liquid nitrogen tank (8) is further provided at the bottom of the trolley body (1), and a first air inlet pipe (81) and a second air inlet pipe (82) are provided on the liquid nitrogen tank (8). An end of the first air inlet pipe (81) away from the liquid nitrogen tank (8) is connected to the storage bin (3), and an end of the second air inlet pipe (82) away from the liquid nitrogen tank (8) is connected to the defrost bin (5).

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