A liquid nitrogen tank freezing frame lifting mechanism

Abstract

The utility model relates to liquid nitrogen tank freeze storage frame lifting device technical field, concretely relates to a kind of liquid nitrogen tank freeze storage frame lifting mechanism, comprising: lifting frame body, including the fixed base of installation on liquid nitrogen tank body, and at least one vertical arm unit vertically inserted in the fixed base;Horizontal plate is rotatably installed at the upper end of the vertical arm unit by stepper motor, horizontal plate is installed with slide rail, the slide rail is movably installed with the supporting plate, the lifting chain hook for lifting freeze storage frame body is movably installed on the supporting plate;The liquid nitrogen tank freeze storage frame lifting mechanism can reliably and conveniently hoist freeze storage frame, can realize the lifting function while realizing the lifting adjustment of vertical direction structure;The vertical arm unit can be adjusted height, overall height is conveniently reduced, low space is adapted, meanwhile, vertical arm unit can be disassembled and assembled, and the applicability is strong, vertical arm unit is conveniently installed according to the depth of tank body and stacked.

Description

Technical Field

[0001] This utility model relates to the technical field of lifting devices for liquid nitrogen tank cryopreservation racks, and specifically to a lifting mechanism for liquid nitrogen tank cryopreservation racks. Background Technology

[0002] Large-diameter stainless steel liquid nitrogen tanks are commonly used to store biological samples. They are equipped with multiple cryopreservation racks or blood bag racks to separate samples. When frozen samples are needed, the entire cryopreservation rack needs to be removed. However, most individual cryopreservation racks currently weigh more than 10 kg, making them heavy and inconvenient to remove manually.

[0003] Currently, there is no effective lifting structure for liquid nitrogen tanks. If a simple three-dimensional lifting device is installed, the height of the lifting mechanism needs to exceed the internal height of the liquid nitrogen tank in order to completely extract the cryopreservation rack inside the liquid nitrogen tank. Therefore, the overall structure is too high, which causes inconvenience during the movement of the liquid nitrogen tank. Therefore, it is necessary to realize the lifting function and the vertical lifting adjustment of the structure. In view of this, we propose a liquid nitrogen tank cryopreservation rack lifting mechanism. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings mentioned in the background art and to provide a lifting mechanism for a liquid nitrogen tank cryopreservation rack.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A liquid nitrogen tank cryopreservation rack lifting mechanism includes: The lifting frame includes a fixed base installed on the liquid nitrogen tank body, and at least one vertical arm unit inserted into the fixed base; A horizontal plate is mounted on the upper end of the vertical arm unit via a stepper motor. A slide rail is horizontally mounted on the horizontal plate, and a support plate is movably mounted on the slide rail. A lifting chain hook for lifting the cryogenic rack body is mounted on the support plate.

[0006] Preferably, the fixed base has an intermediate cavity at its axis and an insertion cavity is provided outside the intermediate cavity.

[0007] Preferably, the vertical arm unit includes a plug block with a vertical arm fixedly mounted on its upper end, and the plug block has an inner cavity for insertion into the plug cavity or the vertical arm.

[0008] Preferably, a mounting cavity is provided at the upper end of the vertical arm, the stepper motor is fixedly installed in the mounting cavity, and a connecting plate is fixedly installed on the output shaft of the stepper motor; The connecting plate is fixedly installed on the horizontal plate.

[0009] Preferably, a drive motor for driving the lifting chain hook to rise and fall is fixedly installed on the pallet.

[0010] Preferably, an outer cover is fixedly installed on the horizontal plate outside the slide rail and the tray.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This liquid nitrogen tank cryopreservation rack lifting mechanism can reliably and conveniently lift the cryopreservation rack, and can realize the lifting function while also adjusting the vertical structure. The height can be adjusted through the provided vertical arm unit, which makes it easy to reduce the overall height and adapt to low spaces. At the same time, the vertical arm unit can be disassembled and assembled, making it highly adaptable and easy to stack and install vertical arm units according to the depth of the tank. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is one of the schematic diagrams of the overall structure of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is a front view of the overall structure of this utility model; Figure 4 This is an exploded view of the overall structure of this utility model.

[0013] The meanings of the labels in the diagram are as follows: 1. Freezer rack body; 2. Fixed base; 201. Insertion cavity; 202. Intermediate cavity; 3. Insertion block; 4. Vertical arm; 401. Mounting cavity; 5. Stepper motor; 6. Connecting plate; 7. Horizontal plate; 8. Slide rail; 9. Support plate; 10. Lifting chain hook; 11. Outer cover. Detailed Implementation

[0014] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Please see Figures 1-4 The present invention will describe the above technical solution in detail through the following embodiments: In this embodiment, the liquid nitrogen tank cryopreservation rack lifting mechanism is designed with a modular arm design, namely, it includes a fixed base 2 installed on the liquid nitrogen tank body, and a vertical arm unit inserted into the fixed base 2.

[0016] Specifically, in this embodiment, the vertical arm unit includes a plug block 3 with a vertical arm 4 fixedly mounted on its upper end. To facilitate assembly, the plug block 3 is provided with... Figure 4 The internal cavity of the structure shown can be inserted into the insertion cavity 201 and onto the vertical arm 4. In order to achieve lifting and folding, an intermediate cavity 202 is provided at the axis of the fixed base 2, and an insertion cavity 201 is provided outside the intermediate cavity 202. An installation cavity 401 is provided at the upper end of the vertical arm 4. At the same time, the insertion block 3 can be inserted into the insertion cavity 201. A lifting electric cylinder is installed in the intermediate cavity 202 to drive the vertical arm unit to lift and fold. In this embodiment, there is only one vertical arm unit. Therefore, a stepper motor 5 is fixedly installed in the installation cavity 401 at the top. When the vertical arm unit is not working, the arm can be retracted to reduce the overall height and adapt to low spaces.

[0017] In this embodiment, the output shaft of the stepper motor 5 is fixedly mounted with a connecting plate 6. In order to realize the rotation of the lifting part, the connecting plate 6 is fixedly mounted on the horizontal plate 7. The stepper motor 5 rotates and is mounted at the upper end of the vertical arm unit. A slide rail 8 is horizontally mounted on the horizontal plate 7, and a support plate 9 is movably mounted on the slide rail 8. The support plate 9 is driven by a drive motor to drive the lifting chain hook 10 to lift and release, so as to lift the cryopreservation rack body 1. In order to accurately position, the electrical control logic of this embodiment adopts the existing PLC control technology to control the motor and the segmented lifting and lowering action of the vertical arm unit, thereby completing the lifting of the cryopreservation rack body 1.

[0018] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0019] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A liquid nitrogen tank cryogenic storage rack hoist mechanism characterized by: include: The lifting frame includes a fixed base (2) installed on the liquid nitrogen tank body, and at least one vertical arm unit inserted into the fixed base (2); A horizontal plate (7) is rotatably mounted on the upper end of the vertical arm unit by a stepper motor (5). A slide rail (8) is horizontally mounted on the horizontal plate (7). A support plate (9) is movably mounted on the slide rail (8). A lifting chain hook (10) for lifting the cryogenic rack body (1) is lifted and lowered on the support plate (9).

2. The liquid nitrogen tank freezer shelf lifting mechanism of claim 1, wherein: The fixed base (2) has an intermediate cavity (202) at its axis and an insertion cavity (201) outside the intermediate cavity (202).

3. The liquid nitrogen tank cryopreservation rack lifting mechanism as described in claim 2, characterized in that: The vertical arm unit includes a plug (3) with a vertical arm (4) fixedly installed at the upper end. The plug (3) has an inner cavity for insertion into the plug cavity (201) or the vertical arm (4).

4. The liquid nitrogen tank cryopreservation rack lifting mechanism as described in claim 3, characterized in that: The vertical arm (4) has an installation cavity (401) at its upper end. The stepper motor (5) is fixedly installed in the installation cavity (401), and the output shaft of the stepper motor (5) is fixedly installed with a connecting plate (6). The connecting plate (6) is fixedly installed on the horizontal plate (7).

5. The liquid nitrogen tank cryopreservation rack lifting mechanism as described in claim 1, characterized in that: A drive motor for driving the lifting chain hook (10) to rise and fall is fixedly installed on the pallet (9).

6. The liquid nitrogen tank cryopreservation rack lifting mechanism as described in claim 1, characterized in that: An outer cover (11) is fixedly installed on the horizontal plate (7) and outside the slide rail (8) and the support plate (9).

Images