Liquid nitrogen storage safety protection device

Abstract

The utility model belongs to the technical field of liquid nitrogen storage, and discloses a liquid nitrogen storage safety protection device which comprises a protection box, a connecting rod is movably connected in the protection box, a protection box is fixed in the connecting rod, a liquid nitrogen tank is arranged in the protection box, and a tank unloading mechanism is installed at the bottom end in the protection box. A connecting through hole is formed in the outer portion of the protection box, a protection mechanism is arranged in the protection box, and through cooperation of the protection box, a connecting rod, the protection box and other structures, the liquid nitrogen container can be placed in the protection box and then protected by the protection box, and a shell of the liquid nitrogen container is prevented from being damaged; and the protection box is stored through the protection box, the protection effect of the device on the liquid nitrogen tank is further improved, after the liquid nitrogen tank is stored in the protection box, the connecting pipe can be connected with the liquid nitrogen tank through the connecting through hole, so that liquid nitrogen in the liquid nitrogen tank is used, and the purpose that the device can conveniently store and protect the liquid nitrogen tank is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to liquid nitrogen storage technical field, specifically a kind of liquid nitrogen storage safety protection device. BACKGROUND

[0002] Liquid nitrogen tank, as the professional container of storing liquid nitrogen, plays an important role in medical treatment, scientific research, food processing, cold chain logistics and other fields, and liquid nitrogen provides ideal storage environment for various samples, reagents and goods needing low-temperature preservation with its extremely low temperature (-196 ℃). However, there are a series of safety hazards and technical challenges in the storage and use process of liquid nitrogen tank.

[0003] The fixing mode of liquid nitrogen storage tank is often not stable enough, and it is easy to tip over or leak during handling or filling, thereby causing safety hazards. In addition, there are many inconveniences in the placing and taking out process of liquid nitrogen tank body, especially when the liquid nitrogen tank body needs to be placed or taken out from high place, the safety of workers is difficult to guarantee.

[0004] It is necessary to ensure the firmness of liquid nitrogen storage tank during handling and filling to prevent leakage, and it is necessary to make the user more convenient when replacing liquid nitrogen storage tank, so as to ensure the safety of workers. UTILITY MODEL CONTENTS

[0005] To solve the problems raised in the above background art, the utility model provides a liquid nitrogen storage safety protection device.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a liquid nitrogen storage safety protection device, comprising a protection box, a connecting rod movably connected inside the protection box, a protection box fixed inside the connecting rod, a liquid nitrogen tank arranged inside the protection box, an unloading mechanism installed at the bottom end of the protection box, a connecting through hole formed on the outside of the protection box, and a protection mechanism arranged inside the protection box.

[0007] The unloading mechanism comprises a first connecting seat, a cylinder and a second connecting seat, the first connecting seat is fixed at the bottom end of the inside of the protection box, the second connecting seat is fixed on the outside of the protection box, the cylinder is hinged inside the first connecting seat, and the second connecting seat is hinged at one end of the cylinder.

[0008] Preferably, the protection mechanism comprises a protection plate, a limiting groove and a return spring, the protection plate is movably connected inside the protection box, the limiting groove is formed at the bottom end of the protection plate, the return spring is fixed at the top end of the inside of the protection box, and the limiting bead is installed at the top end of the return spring.

[0009] Preferably, the outer wall of the protective plate is close to the inner wall of the protective box, the protective plate and the protective box are slidingly connected, the protective plate is provided with two groups, the limiting grooves are provided with a plurality of groups, and the limiting grooves are equidistantly distributed about the central axis of the protective plate.

[0010] Preferably, the reset spring is used for extruding the limiting beads and keeping the upward moving tendency of the limiting beads, the reset spring and the limiting beads are provided with a plurality of groups, and the reset spring and the limiting beads are equidistantly distributed about the central axis of the protective plate.

[0011] Preferably, the outer wall of the connecting rod is close to the inner wall of the protective box, the connecting rod and the protective box are rotationally connected, the top end of the protective box is provided with a mounting groove, and the protective box is provided with two groups.

[0012] Preferably, the outer wall of the liquid nitrogen tank is close to the inner wall of the protective box, and the liquid nitrogen tank and the protective box are slidingly connected.

[0013] Preferably, the connecting through holes are provided with two groups, and the connecting through holes are cross-symmetrically distributed about the central axis of the protective box.

[0014] Compared with the prior art, the device has the advantages that:

[0015] The device can protect the liquid nitrogen tank by the protective box after the liquid nitrogen tank is placed in the protective box, prevent the shell of the liquid nitrogen tank from being damaged, and further improve the protection effect of the device on the liquid nitrogen tank.

[0016] The device can control the protective box to be stored in the protective box or be at an oblique angle by starting the cylinder, the extension of the cylinder length pushes the protective box to rotate about the central axis of the connecting rod through the second connecting seat, so that the worker can quickly replace the liquid nitrogen tank in the protective box, and the device can quickly replace the liquid nitrogen tank in the protection.

[0017] The utility model discloses a set of protection mechanism, which is used for protecting the liquid nitrogen tank, and comprises a protection box, a protection case, a protection plate, a limiting groove, a reset spring and a limiting bead. BRIEF DESCRIPTION OF DRAWINGS

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

[0019] Figure 2 It is a group of liquid nitrogen tank lifting state schematic diagram of the utility model;

[0020] Figure 3 It is the whole expansion structure schematic diagram of the utility model;

[0021] Figure 4 It is the liquid nitrogen tank replacement state schematic diagram of the utility model;

[0022] Figure 5 It is the whole internal structure schematic diagram of the utility model;

[0023] Figure 6 It is the protection mechanism structure schematic diagram of the utility model.

[0024] In the drawing: 1, protection case;2, connecting rod;3, protection box;4, liquid nitrogen tank;5, tank unloading mechanism;501, first connecting seat;502, air cylinder;503, second connecting seat;6, connecting through hole;7, protection mechanism;701, protection plate;702, limiting groove;703, reset spring;704, limiting bead. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] For example, Figures 1 to 6The utility model provides a liquid nitrogen storage safety protection device, including protection case 1, the inside swing joint of protection case 1 has connecting rod 2, the inside fixed of connecting rod 2 has protection box 3, the outer wall of connecting rod 2 is close to the inner wall of protection case 1, connecting rod 2 and protection case 1 rotation connection, the top of protection box 3 is equipped with installation slot, and protection box 3 is provided with two groups.

[0027] As Figures 1 to 6 The utility model discloses a liquid nitrogen storage safety protection device, including protection case 1, the inside swing joint of protection case 1 has connecting rod 2, the inside fixed of connecting rod 2 has protection box 3, the outer wall of connecting rod 2 is close to the inner wall of protection case 1, connecting rod 2 and protection case 1 rotation connection, the top of protection box 3 is equipped with installation slot, and protection box 3 is provided with two groups.

[0028] The utility model discloses a liquid nitrogen storage safety protection device, including protection case 1, the inside swing joint of protection case 1 has connecting rod 2, the inside fixed of connecting rod 2 has protection box 3, the outer wall of connecting rod 2 is close to the inner wall of protection case 1, connecting rod 2 and protection case 1 rotation connection, the top of protection box 3 is equipped with installation slot, and protection box 3 is provided with two groups.

[0029] As Figures 1 to 6 The utility model discloses a liquid nitrogen storage safety protection device, including protection case 1, the inside swing joint of protection case 1 has connecting rod 2, the inside fixed of connecting rod 2 has protection box 3, the outer wall of connecting rod 2 is close to the inner wall of protection case 1, connecting rod 2 and protection case 1 rotation connection, the top of protection box 3 is equipped with installation slot, and protection box 3 is provided with two groups.

[0030] The utility model discloses a liquid nitrogen storage safety protection device, including protection case 1, the inside swing joint of protection case 1 has connecting rod 2, the inside fixed of connecting rod 2 has protection box 3, the outer wall of connecting rod 2 is close to the inner wall of protection case 1, connecting rod 2 and protection case 1 rotation connection, the top of protection box 3 is equipped with installation slot, and protection box 3 is provided with two groups.

[0031] As Figures 1 to 6 The utility model discloses a liquid nitrogen storage safety protection device, including protection case 1, the inside swing joint of protection case 1 has connecting rod 2, the inside fixed of connecting rod 2 has protection box 3, the outer wall of connecting rod 2 is close to the inner wall of protection case 1, connecting rod 2 and protection case 1 rotation connection, the top of protection box 3 is equipped with installation slot, and protection box 3 is provided with two groups.

[0032] As Figures 1 to 6As shown, the top end of the protection box 1 is fixed with a reset spring 703, the top end of the reset spring 703 is installed with a limiting bead 704, the reset spring 703 is used for extruding the limiting bead 704 and making it keep the tendency of upward movement, the reset spring 703 and the limiting bead 704 are arranged in several groups, and the reset spring 703 and the limiting bead 704 are equidistantly distributed about the central axis of the protection plate 701.

[0033] By adopting the above scheme: after the protection box 3 is accommodated in the protection box 1, the protection plate 701 is inserted into the protection groove of the protection box 1, so that the protection plate 701 covers the top end of the protection box 3 for protection, and after the limiting bead 704 is moved to the top end of the limiting groove 702, the limiting bead 704 first contacts the protection plate 701 and shrinks downward, and then when the limiting bead 704 is located at the bottom end of the limiting groove 702, the reset spring 703 pushes the limiting bead 704 upward so that the limiting bead 704 is embedded in the limiting groove 702 for fixation, and when the protection plate 701 is pulled out, the protection box 3 can be taken out.

[0034] The working principle and use process of the utility model: after the liquid nitrogen tank 4 is placed in the protection box 3, the protection box 3 protects the liquid nitrogen tank 4, prevents the shell of the liquid nitrogen tank 4 from being damaged, and further improves the protection effect of the device on the liquid nitrogen tank 4 by accommodating the protection box 3 in the protection box 1, after the liquid nitrogen tank 4 is accommodated in the protection box 1, the connecting pipe can be connected with the liquid nitrogen tank 4 through the connecting hole 6 to use the liquid nitrogen in the liquid nitrogen tank 4, and by starting the air cylinder 502, the extension of the length of the air cylinder 502 will push the protection box 3 to rotate about the central axis of the connecting rod 2 through the second connecting seat 503, so that the protection box 3 is accommodated in the protection box 1 or at an oblique angle, so that the worker can quickly replace the liquid nitrogen tank 4 in the protection box 3.

[0035] It should be noted that in this document, relationship terms such as first and second, and the like, are used only to differentiate one entity or action from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or actions. In addition, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for liquid nitrogen storage, comprising a protection box (1), characterized in that: The inside of the protection box (1) is movably connected with a connecting rod (2), the inside of the connecting rod (2) is fixedly connected with a protection box (3), the inside of the protection box (3) is provided with a liquid nitrogen tank (4), the bottom end of the inside of the protection box (1) is provided with a tank unloading mechanism (5), the outside of the protection box (1) is provided with a connecting through hole (6), and the inside of the protection box (1) is provided with a protection mechanism (7). The tank unloading mechanism (5) comprises a first connecting seat (501), a gas cylinder (502) and a second connecting seat (503), the first connecting seat (501) is fixed to the bottom end of the inside of the protection box (1), the second connecting seat (503) is fixed to the outside of the protection box (3), and the inside of the first connecting seat (501) is hingedly connected with the gas cylinder (502), one end of the gas cylinder (502) is hingedly connected with the second connecting seat (503).

2. The liquid nitrogen storage safety shield of claim 1, wherein: The protection mechanism (7) comprises a protection plate (701), a limiting groove (702) and a reset spring (703), the protection plate (701) is movably connected in the inside of the protection box (1), the bottom end of the protection plate (701) is provided with the limiting groove (702), the top end of the inside of the protection box (1) is fixedly connected with the reset spring (703), and the top end of the reset spring (703) is provided with a limiting bead (704).

3. The liquid nitrogen storage safety shield of claim 2, wherein: The outer wall of the protection plate (701) is close to the inner wall of the protection box (1), the protection plate (701) and the protection box (1) are slidably connected, the protection plate (701) is provided with two groups, the limiting groove (702) is provided with a plurality of groups, and the limiting groove (702) is equidistantly distributed about the central axis of the protection plate (701).

4. The liquid nitrogen storage safety shield of claim 2, wherein: The reset spring (703) is used for extruding the limiting bead (704) and keeping the upward movement trend, and the reset spring (703) and the limiting bead (704) are provided with a plurality of groups and are equidistantly distributed about the central axis of the protection plate (701).

5. The liquid nitrogen storage safety shield of claim 1, wherein: The outer wall of the connecting rod (2) is close to the inner wall of the protection box (1), the connecting rod (2) and the protection box (1) are rotatably connected, the top end of the protection box (3) is provided with a mounting groove, and the protection box (3) is provided with two groups.

6. The liquid nitrogen storage safety shield of claim 1, wherein: The outer wall of the liquid nitrogen tank (4) is close to the inner wall of the protection box (3), and the liquid nitrogen tank (4) and the protection box (3) are slidably connected.

7. The liquid nitrogen storage safety shield of claim 1, wherein: The connecting through hole (6) is provided with two groups, and the connecting through hole (6) is cross-symmetrically distributed about the central axis of the protection box (1).

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