Liquid nitrogen transfer device with automatic temperature control function

Abstract

The utility model discloses a liquid nitrogen transfer device with an automatic temperature control function, and relates to the technical field of liquid nitrogen transfer. Comprising a transfer trolley and a liquid nitrogen storage box, four sliding columns are connected to the transfer trolley in a sliding mode, a supporting frame is rotationally connected to the sliding columns, a supporting plate is arranged on the supporting frame, the liquid nitrogen storage box is connected to the supporting plate in a sliding mode, a control system and a displayer are fixedly installed on the liquid nitrogen storage box, and every two sliding columns form a group. The first set of sliding columns are slidably connected with rear limiting rods, the second set of sliding columns are fixedly connected with push rods, a worker can conveniently move the liquid nitrogen storage box to the supporting plate and the supporting frame through sliding of the supporting plate on the supporting frame and a roller shaft on the supporting plate, and then the working efficiency is improved; and therefore, the liquid nitrogen storage box can be conveniently transferred and moved, complicated operation during disassembly and assembly is avoided, and the safety of liquid nitrogen transfer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid nitrogen transportation, in particular to a liquid nitrogen transportation device with automatic temperature control. Background Art

[0002] Traditional liquid nitrogen storage devices are usually designed for a specific operating temperature range and cannot easily adapt to working environments with different temperature requirements. Due to the extremely low temperature of liquid nitrogen, the transfer and movement of liquid nitrogen tanks usually require specialized equipment and strict safety operations, which increases operational complexity and costs. Due to the limitations and operational complexity of traditional liquid nitrogen tanks, the cost of storing and using liquid nitrogen is high, especially when frequent transfers and changes of work locations are required.

[0003] The utility model with announcement number CN212921566U discloses a biological sample transport cart, including a frame and universal wheels arranged at the bottom of the frame, a push handle is installed on one side of the frame, a low-temperature tank with an open top, a liquid nitrogen tube and a storage tank are installed on the frame, and a freezing box containing frozen items is placed on the storage tank, which can meet the transportation requirements in large quantities; in addition, during the transportation process, the temperature in the storage tank is monitored in real time by a temperature sensor, the amount of liquid nitrogen in the low-temperature tank is monitored in real time by a liquid level meter, and the status of the transportation process is monitored in real time, and the degree of intelligence is high.

[0004] The liquid nitrogen tank of the above patent needs to be kept on the transfer vehicle at all times and cannot be removed and replaced. The items in the liquid nitrogen tank need to be taken and placed manually, which reduces the work efficiency and transfer efficiency. Therefore, a device is needed to replace the liquid nitrogen storage device and facilitate the movement of the liquid nitrogen storage device on the transfer vehicle. Utility Model Content

[0005] In response to the above technical problems, the present application solves the problem that liquid nitrogen storage devices are inconvenient to disassemble, assemble and replace.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: a liquid nitrogen transfer device with automatic temperature control, including a transfer vehicle and a liquid nitrogen storage box, the transfer vehicle is slidably connected with four sliding columns, the sliding columns are rotatably connected with a support frame, the support frame is provided with a support plate, the liquid nitrogen storage box is slidably connected to the support plate, and a control system and a display are fixedly installed on the liquid nitrogen storage box, every two sliding columns form a group, the first group of sliding columns is slidably connected with a rear limiting rod, and the second group of sliding columns is fixedly connected with a push rod.

[0007] Preferably, the transfer vehicle is slidably connected to the shafts of the first ends of two connecting rods, the second ends of the two connecting rods are rotatably connected to the support frame, the transfer vehicle is rotatably connected to a threaded rod, the threaded rod is threadedly connected to a connecting block, and the connecting block is provided with two rotatable slots, which are slidably connected to the two connecting rods.

[0008] Preferably, a driving rod is provided on the threaded rod, and a ratchet fit is formed between the driving rod and the threaded rod.

[0009] Preferably, a gear is fixedly mounted on the threaded rod, a cross bar is slidably connected to the transfer vehicle, a limiting tooth block is fixedly connected to the cross bar, and the limiting tooth block is meshed with the gear.

[0010] Preferably, a mounting plate is fixedly mounted on the transfer vehicle, the mounting plate is rotatably connected to the shaft of a turntable, the first end of a spring is fixedly connected to the turntable, the second end of the spring is fixedly connected to the mounting plate, a cross bar and two short shafts are fixedly connected to the turntable, the first end of a driving plate is rotatably connected to the short shaft, the second end of the driving plate is slidably connected to the transfer vehicle, and a larger gap is provided at the contact point between the driving plate and the transfer vehicle.

[0011] Preferably, the support frame is provided with a baffle, which is divided into a front baffle and a side baffle, and a slide groove is provided on the side baffle. An inclined surface is provided on one end of the support frame close to the rear limiting rod.

[0012] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0013] 1. The utility model provides a transfer vehicle, and places the liquid nitrogen storage box on the transfer vehicle, thereby facilitating the transfer and movement of the liquid nitrogen storage box, avoiding complicated operations during disassembly and assembly, and thus improving the safety of liquid nitrogen transportation.

[0014] 2. The utility model arranges a support plate on the support frame, utilizes the sliding of the support plate on the support frame and the roller on the support plate to facilitate workers to move the liquid nitrogen storage box to the support plate and the support frame, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the rear limiting rod of the utility model;

[0018] Figure 3 for Figure 2 A magnified view of the local structure at point A in the middle;

[0019] Figure 4for Figure 2 A magnified view of the local structure at B in the middle;

[0020] Figure 5 This is a schematic diagram of the structure of the support plate of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the support frame of the utility model;

[0022] The beneficial effects of the present invention compared with the prior art are:

[0023] In the figure: 101, transfer vehicle; 102, sliding column; 103, support frame; 104, support plate; 105, liquid nitrogen storage box; 106, display; 107, control system; 108, rear limiting rod; 109, threaded rod; 110, gear; 111, limit gear block; 112, cross bar; 113, turntable; 114, mounting plate; 115, spring; 116, short shaft; 117, drive plate; 118, connecting block; 119, connecting rod; 120, drive rod; 121, push rod. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] Embodiment 1:

[0031] like Figures 1 to 6 As shown, a liquid nitrogen transfer device with automatic temperature control includes a transfer vehicle 101 and a liquid nitrogen storage box 105, the transfer vehicle 101 is slidably connected with four sliding columns 102, the sliding columns 102 are rotatably connected with a support frame 103, the support frame 103 is provided with a support plate 104, the liquid nitrogen storage box 105 is slidably connected to the support plate 104, the liquid nitrogen storage box 105 is fixedly installed with a control system 107 and a display 106, every two sliding columns 102 form a group, the first group of sliding columns 102 is slidably connected with a rear limiting rod 108, and the second group of sliding columns 102 is fixedly connected with a push rod 121.

[0032] The transfer vehicle 101 is provided with four universal wheels and can be fixed. The staff controls the movement of the slide column 102 and the transfer vehicle 101 by pushing and pulling the push rod 121 , thereby transferring the liquid nitrogen storage box 105 . When the liquid nitrogen storage box 105 is placed on the support plate 104, the left end of the liquid nitrogen storage box 105 is limited by the protrusion of the support plate 104 and the front baffle of the support frame 103, and the rear end of the liquid nitrogen storage box 105 is limited by the rear limiting rod 108 on the sliding column 102. When the rear limiting rod 108 needs to be opened, the rear limiting rod 108 is controlled to slide upward, because one of the two sliding columns 102 where the rear limiting rod 108 is located is provided with a convex shaft, so that when the first end of the rear limiting rod 108 is separated from the sliding column 102 without the convex shaft, the second end of the rear limiting rod 108 is on the convex shaft of the other sliding column 102, so that the rear limiting rod 108 is rotated at this time, so that the first end of the rear limiting rod 108 is away from the push rod 121, and then contacts the restriction of the rear limiting rod 108, and the loading and unloading of the liquid nitrogen storage box 105 can be carried out.

[0033] When the liquid nitrogen storage box 105 needs to be transferred, the control slide column 102 slides downward on the transfer vehicle 101, so that the support frame 103 on the slide column 102 moves to the bottom, and then the support plate 104 is controlled to slide on the support frame 103. When the support plate 104 moves to the extreme position, most of the support plate 104 is outside the support frame 103. Therefore, under the action of gravity, the end of the support plate 104 away from the support frame 103 moves downward, so that the support plate 104 rotates on the support frame 103, and then the end of the support plate 104 away from the support frame 103 contacts the ground, and then the liquid nitrogen storage box 105 can be pushed to move onto the support plate 104, and then the support plate 104 is pushed to slide on the support frame 103 through the protrusion on the support plate 104, so that the support plate 104 is reset on 13, and finally reset by controlling the slide column 102, thereby lifting the liquid nitrogen storage box 105.

[0034] During use, the control system 107 is used to automatically adjust the working temperature of the liquid nitrogen storage box 105, so that the temperature change range of the liquid nitrogen storage box 105 can be freely controlled within -193°C to -135°C, and the various parameters of the liquid nitrogen storage box 105 are displayed through the display 106. The working location of the liquid nitrogen storage box 105 is quickly transferred through the sliding column 102. Thereby reducing the energy consumption and cost of storing products in liquid nitrogen, and improving production efficiency and safety.

[0035] like Figure 2 and Figure 5As shown, the transfer vehicle 101 is slidably connected to the shafts of the first ends of two connecting rods 119, and the second ends of the two connecting rods 119 are rotatably connected to the support frame 103. The transfer vehicle 101 is rotatably connected to a threaded rod 109, and the threaded rod 109 is threadedly connected to a connecting block 118. The connecting block 118 is provided with two rotatable slots, which are slidably connected to the two connecting rods 119.

[0036] The two slots on the connecting block 118 are connected by an axial rotation. The slot is a ring that adapts to the shape of the connecting rod 119. The slot and the connecting block 118 are also connected by an axial rotation, so that the two shafts and the slots can adapt to the change in the angle between the two connecting rods 119 when they rotate.

[0037] like Figure 5 As shown, a driving rod 120 is disposed on the threaded rod 109 , and a ratchet fit is formed between the driving rod 120 and the threaded rod 109 .

[0038] When in use, the driving rod 120 is rotated, and the threaded rod 109 is driven to rotate on the transfer vehicle 101 by the ratchet, and then the threaded rod 109 drives the connecting block 118 to rotate through the thread, so as to control the connecting block 118 to move up and down, and then the two connecting rods 119 are used to control the support frame 103 and the sliding column 102 to slide up and down on the transfer vehicle 101.

[0039] A gear 110 is fixedly mounted on the threaded rod 109 , a cross bar 112 is slidably connected to the transfer vehicle 101 , a limit tooth block 111 is fixedly connected to the cross bar 112 , and the limit tooth block 111 is meshed with the gear 110 .

[0040] The transfer vehicle 101 is fixedly mounted with a mounting plate 114, on which the shaft of a turntable 113 is rotatably connected, on which the first end of a spring 115 is fixedly connected, on which the second end of the spring 115 is fixedly connected, and on which the turntable 113 is fixedly connected a cross bar 112 and two short shafts 116 are fixedly connected, on which the short shaft 116 is rotatably connected a first end of a driving plate 117, and on which the second end of the driving plate 117 is slidably connected to the transfer vehicle 101, and a relatively large gap is provided where the driving plate 117 contacts the transfer vehicle 101.

[0041] When it is necessary to move the position of the support frame 103, that is, to control the threaded rod 109 and the gear 110 to rotate, the driving plate 117 is pushed to slide on the transfer vehicle 101, and the driving plate 117 pushes the short shaft 116 on the turntable 113, so that the turntable 113 rotates on the mounting plate 114 and twists the spring 115. When the mounting plate 114 rotates, it drives the cross bar 112 to slide on the transfer vehicle 101 toward the direction close to the turntable 113, so that the limiting tooth block 111 on the cross bar 112 disengages from the gear 110, releasing the restriction of the limiting tooth block 111 on the gear 110, so that the threaded rod 109 can rotate on the transfer vehicle 101.

[0042] When the turntable 113 rotates, the turntable 113 pulls the driving plate 117, so that the driving plate 117 rotates on the transfer vehicle 101, that is, the driving plate 117 slides on the transfer vehicle 101 while rotating on the transfer vehicle 101. When the support frame 103 is completely moved, the control of the driving plate 117 is released, and under the action of the spring 115 on the turntable 113, the turntable 113, the driving plate 117 and the crossbar 112 are reset, and then the limiting tooth block 111 contacts and limits the rotation of the gear 110, thereby limiting the threaded rod 109 and fixing the position of the support frame 103.

[0043] like Figure 6 As shown, a baffle is provided on the support frame 103 , and the baffle is divided into a front baffle and a side baffle. A slide groove is provided on the side baffle. An inclined surface is provided on one end of the support frame 103 close to the rear limiting rod 108 .

[0044] When the support plate 104 slides on the support frame 103, the axis on the support plate 104 slides on the slide groove on the side baffle of the support frame 103. When the support plate 104 moves to the right end of the support frame 103, due to the inclined surface of the right end of the support frame 103, the right end of the support plate 104 gradually tilts downward under the action of gravity. Finally, when the support plate 104 moves to the end point position at the right end of the support frame 103, most of the support plate 104 is outside the support frame 103, so that the right end of the support plate 104 falls and contacts the ground, so that the support plate 104 is tilted, which facilitates the movement of the liquid nitrogen storage box 105 onto the support plate 104, and a plurality of rollers are arranged on the support plate 104. The rolling of the rollers promotes the sliding of the liquid nitrogen storage box 105 on the support plate 104, thereby saving physical strength for employees and achieving efficient work.

[0045] The left ends of the support frame 103 and the support plate 104 are both provided with limiting parts for preventing the support plate 104 and the liquid nitrogen storage box 105 from moving, namely, a front baffle on the support frame 103 and a bump on the support plate 104 .

[0046] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A liquid nitrogen transfer device with automatic temperature control, comprising a transfer vehicle (101) and a liquid nitrogen storage box (105), characterized in that: The transfer vehicle (101) is slidably connected to four sliding columns (102), the sliding columns (102) are rotatably connected to a support frame (103), a support plate (104) is arranged on the support frame (103), the liquid nitrogen storage box (105) is slidably connected to the support plate (104), a control system (107) and a display (106) are fixedly installed on the liquid nitrogen storage box (105), every two sliding columns (102) form a group, a rear limiting rod (108) is slidably connected to the sliding columns (102) of the first group, and a push rod (121) is fixedly connected to the sliding columns (102) of the second group.

2. A liquid nitrogen transport device with automatic temperature control according to claim 1, characterized in that: The transfer vehicle (101) is slidably connected to the shafts of the first ends of two connecting rods (119), and the second ends of the two connecting rods (119) are rotatably connected to the support frame (103). The transfer vehicle (101) is rotatably connected to a threaded rod (109), and a connecting block (118) is threadedly connected to the threaded rod (109). The connecting block (118) is provided with two rotatable slots, which are slidably connected to the two connecting rods (119).

3. A liquid nitrogen transport device with automatic temperature control according to claim 2, characterized in that: The threaded rod (109) is provided with a driving rod (120), and a ratchet fit is formed between the driving rod (120) and the threaded rod (109).

4. The liquid nitrogen transport device with automatic temperature control according to claim 3, characterized in that: A gear (110) is fixedly mounted on the threaded rod (109), a cross bar (112) is slidably connected to the transfer vehicle (101), a limit tooth block (111) is fixedly connected to the cross bar (112), and the limit tooth block (111) is meshed with the gear (110).

5. The liquid nitrogen transport device with automatic temperature control according to claim 4, characterized in that: The transfer vehicle (101) is fixedly mounted with a mounting plate (114), the mounting plate (114) is rotatably connected to the shaft of a turntable (113), the turntable (113) is fixedly connected with a first end of a spring (115), the second end of the spring (115) is fixedly connected to the mounting plate (114), the turntable (113) is fixedly connected with a crossbar (112) and two short shafts (116), the short shaft (116) is rotatably connected with a first end of a driving plate (117), the second end of the driving plate (117) is slidably connected to the transfer vehicle (101), and a relatively large gap is provided at a contact point between the driving plate (117) and the transfer vehicle (101).

6. The liquid nitrogen transport device with automatic temperature control according to claim 1, characterized in that: The support frame (103) is provided with a baffle, which is divided into a front baffle and a side baffle. The side baffle is provided with a slide groove. An end of the support frame (103) close to the rear limiting rod (108) is provided with an inclined surface.

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