Liquid nitrogen biological container provided with protective cover and capable of conveniently supplementing liquid nitrogen

Abstract

The utility model relates to the field of liquid nitrogen biological containers, in particular to a liquid nitrogen biological container provided with a protective cover and capable of supplementing liquid nitrogen conveniently. The device further comprises a lifting seat, a moving groove, a moving block, a lead screw, a motor, a moving plate and a connecting rod, the lifting seat is installed at the rear end of the top of the bottom plate, the moving groove is formed in the front side of the lifting seat, the moving block is arranged in the moving groove, the lead screw is connected to the top of the moving block in a penetrating mode, and the motor is arranged at the position, corresponding to the lead screw, of the top of the lifting seat. The motor is started to drive the lead screw to rotate, when the lead screw rotates, the moving block moves up and down in the moving groove, when the moving block moves, the moving plate and the connecting rod are driven to move synchronously, and when the connecting rod moves, the top cover on the top of the storage barrel is driven to move up and down, so that the automatic cover opening effect is achieved; the problem that the top cover is adhered to the inner wall of the storage barrel due to low temperature and is difficult to open is solved, and the practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid nitrogen biological container field especially liquid nitrogen biological container with protective cover can conveniently supplement liquid nitrogen. BACKGROUND

[0002] Liquid nitrogen biological container is a device for long -term storage biological sample, mainly through high vacuum multilayer insulation technology to keep low temperature environment, this kind of container usually is made of aluminum or stainless steel, has double -layer thin -walled structure, can effectively insulate external heat, keep inside temperature extremely low, usually used for storage cell, skin, bone marrow, blood, cartilage, nerve, blood vessel, eyeball cornea etc.

[0003] Common liquid nitrogen biological container usually uses screw rod to fix sealing cover or sealing plug on the top of jar body to seal, can play the effect of sealing leak -proof, but lacks the function of automatic cover opening, cannot quickly open sealing cover and pour liquid nitrogen in jar body, sealing cover is easy to stick with jar body due to ultra -low temperature, lead to cover body difficult to open, influence normal use of liquid nitrogen biological container, thereby reduce the practicability of liquid nitrogen biological container.

[0004] Therefore, aiming at the above -mentioned liquid nitrogen biological container lacks the function of automatic cover opening, cannot quickly open sealing cover and pour liquid nitrogen in jar body, liquid nitrogen biological container with protective cover can conveniently supplement liquid nitrogen can be designed, the motor can drive screw rod to rotate, when screw rod rotates, the moving block moves up and down in the inside of moving groove, when moving block moves, moving plate and connecting rod move synchronously, and when connecting rod moves, the top cover on the top of storage bucket moves up and down, to reach the effect of automatic cover opening, avoid the problem that the top cover is difficult to open due to the adhesion of the inner wall of the storage bucket caused by low temperature, improve practicability. SUMMARY

[0005] In order to overcome the common liquid nitrogen biological container, lack the function of automatic cover opening, cannot quickly open sealing cover and pour liquid nitrogen in jar body, sealing cover is easy to stick with jar body due to ultra -low temperature, lead to cover body difficult to open, influence normal use of liquid nitrogen biological container, thereby reduce the practicability of liquid nitrogen biological container.

[0006] The utility model discloses a technical scheme for a liquid nitrogen biological container with a protective cover and convenient liquid nitrogen supplement, comprising a bottom plate, a lifting seat, a moving groove, a moving block, a lead screw, a motor, a moving plate and a connecting rod.

[0007] Preferably, the motor is started to drive the lead screw to rotate, which makes the moving block move up and down in the moving groove. When the moving block moves, the moving plate and the connecting rod move synchronously. When the connecting rod moves, the top cover on the top of the storage barrel moves up and down, achieving the effect of automatic opening. The problem of difficult opening caused by the adhesion of the top cover to the inner wall of the storage barrel due to low temperature is avoided, and the practicability is improved.

[0008] Preferably, a storage barrel is arranged at the center of the top of the bottom plate. A top cover is arranged on the top of the storage barrel. An annular sealing plate is arranged on the lower side of the top cover. An annular groove is arranged on the top of the storage barrel corresponding to the position of the annular sealing plate.

[0009] Preferably, an inner cylinder is arranged at the center of the inside of the storage barrel. A limiting groove is arranged on the top of the inner cylinder. A sealing plug is arranged in the limiting groove. A threaded connector is arranged at the center of the top of the sealing plug.

[0010] Preferably, four sliding grooves are symmetrically arranged at the bottom of the limiting groove. A sliding block is arranged in the sliding groove. A fixed rod is connected to the outer side of the sliding block. A pull ring is connected to the other end of the fixed rod. Four sample tanks are symmetrically arranged in the inner cylinder corresponding to the position of the pull ring. The bottom of the pull ring is connected to the top of the sample tank.

[0011] Preferably, a pressure relief pipe is connected to the bottom of the inner cylinder. The other end of the pressure relief pipe passes through the bottom plate and is located on the front side of the bottom plate. A control valve is arranged on the front end of the outer side of the pressure relief pipe.

[0012] Preferably, four damping rods are symmetrically arranged at equal intervals on the bottom of the bottom plate. A piston sleeve is arranged on the lower end of the damping rod. A buffer spring is sleeved on the outer side of the damping rod. An annular base is arranged on the bottom of the piston sleeve.

[0013] Preferably, an annular handle is arranged on the top left side of the sealing plug. The sealing plug is made of a heat-insulating foaming material.

[0014] The utility model discloses the beneficial effect:

[0015] 1, by starting motor can drive screw rod rotation, when the screw rod rotates will make the moving block in the inside of the moving groove up and down, when the moving block moves will drive the moving plate and connecting rod synchronous movement, and when the connecting rod moves will drive the top cover of the top of the storage barrel up and down, to achieve the effect of automatic opening, avoid the top cover because of low temperature and the inner wall of the storage barrel adhesion, thereby causing difficult to open problem, improve the practicality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The liquid nitrogen biological container with the protective cover can conveniently supplement liquid nitrogen is shown as a three-dimensional structure schematic view of the liquid nitrogen biological container.

[0017] Figure 2 The liquid nitrogen biological container with the protective cover can conveniently supplement liquid nitrogen is shown as a cross-sectional structure schematic view of the liquid nitrogen biological container.

[0018] Figure 3 The liquid nitrogen biological container with the protective cover can conveniently supplement liquid nitrogen is shown as an explosion structure schematic view of the storage barrel of the liquid nitrogen biological container.

[0019] Figure 4 The liquid nitrogen biological container with the protective cover can conveniently supplement liquid nitrogen is shown as an explosion structure schematic view of the inner cylinder of the liquid nitrogen biological container.

[0020] Figure 5 The liquid nitrogen biological container with the protective cover can conveniently supplement liquid nitrogen is shown as an explosion structure schematic view of the lifting seat of the liquid nitrogen biological container.

[0021] The drawings are explained: 1, bottom plate; 2, lifting seat; 3, moving groove; 4, moving block; 5, screw rod; 6, motor; 7, moving plate; 8, connecting rod; 9, storage barrel; 10, top cover; 11, annular sealing plate; 12, annular groove; 13, inner cylinder; 14, limit groove; 15, sealing plug; 16, threaded interface; 17, annular handle; 18, sliding groove; 19, sliding block; 20, fixed rod; 21, pull ring; 22, sample jar; 23, pressure relief pipe; 24, control valve; 25, damping rod; 26, piston sleeve; 27, buffer spring; 28, annular base. DETAILED DESCRIPTION

[0022] The utility model is further explained in connection with the drawings and examples.

[0023] Please refer to Figures 1-5The utility model provides a kind of embodiment: liquid nitrogen biological container with protective cover can be conveniently supplemented with liquid nitrogen, including bottom plate 1;Still including lifting seat 2, moving groove 3, moving block 4, screw rod 5, motor 6, moving plate 7 and connecting rod 8, lifting seat 2 is installed at the top rear end of bottom plate 1, moving groove 3 is opened in the front side of lifting seat 2, and moving block 4 is arranged in the inside of moving groove 3, and the top of moving block 4 is connected with screw rod 5, and motor 6 is arranged at the top of lifting seat 2 corresponding to the position of screw rod 5, and the output end of motor 6 is connected with the upper end of screw rod 5 through lifting seat 2, and moving plate 7 is connected to the front side of moving block 4, and two connecting rods 8 are symmetrically installed at the front end left and right sides of moving plate 7, and moving block 4 can be driven to rotate by starting motor 6, and when screw rod 5 rotates, moving block 4 moves up and down in the inside of moving groove 3, and when moving block 4 moves, moving plate 7 and connecting rod 8 are synchronously moved, and when connecting rod 8 moves, top cover 10 on the top of storage barrel 9 moves up and down, to reach the effect of automatic uncovering, avoid the problem that top cover 10 is adhered to the inner wall of storage barrel 9 due to low temperature, to improve practicability.

[0024] Please refer to Figures 1-5 In the embodiment, the top center of bottom plate 1 is provided with storage barrel 9, the top of storage barrel 9 is provided with top cover 10, the lower side of top cover 10 is installed with annular sealing plate 11, and the top of storage barrel 9 is provided with annular groove 12 corresponding to the position of annular sealing plate 11, by inserting annular sealing plate 11 into annular groove 12, top cover 10 and storage barrel 9 can be sealed and connected, to achieve the purpose of sealing the top of storage barrel 9, the inside center of storage barrel 9 is provided with inner cylinder 13, the top of inner cylinder 13 is provided with limiting groove 14, the inside of limiting groove 14 is provided with sealing plug 15, the top center of sealing plug 15 is installed with threaded interface 16, by setting inner cylinder 13, storage barrel 9 and inner cylinder 13 can be in vacuum interlayer, to improve heat insulation performance, at the same time, sealing plug 15 can be used for sealing the top of storage barrel 9, the bottom of limiting groove 14 is symmetrically provided with four sliding grooves 18, the inside of sliding groove 18 is provided with sliding block 19, the outside of sliding block 19 is connected with fixed rod 20, the other end of fixed rod 20 is connected with pull ring 21, and the inside of inner cylinder 13 is symmetrically provided with four sample jars 22 corresponding to the position of pull ring 21, the bottom of pull ring 21 is connected with the top of sample jar 22, by pulling pull ring 21, sample jar 22 can be driven to move upwards, when sample jar 22 moves, fixed rod 20 and sliding block 19 can be synchronously moved in sliding groove 18, to achieve the purpose of placing and taking sample jar 22 conveniently.

[0025] Please refer to Figures 1-5In this embodiment, the bottom of the inner cylinder 13 is connected with the pressure relief pipe 23, the other end of the pressure relief pipe 23 penetrates through the bottom plate 1 and is located on the front side thereof, and the front end of the pressure relief pipe 23 is externally provided with the control valve 24. The control valve 24 can be used to control the pressure relief pipe 23 to release the air pressure in the inner cylinder 13, so as to avoid the safety hazard caused by excessive internal pressure. The bottom of the bottom plate 1 is symmetrically provided with four damping rods 25 at equal intervals. The lower end of the damping rod 25 is provided with the piston sleeve 26, and the outer side of the damping rod 25 is sleeved with the buffer spring 27. The bottom of the piston sleeve 26 is provided with the annular base 28. When the top of the bottom plate 1 vibrates, the damping rod 25 is compressed to move downward. When the damping rod 25 moves, the buffer spring 27 is synchronously retracted to move downward, so as to achieve the effect of buffering and damping. The top left side of the sealing plug 15 is provided with the annular handle 17, and the sealing plug 15 is made of a heat-insulating foaming material. The annular handle 17 can be pushed to rotate the sealing plug 15 in the limiting groove 14, so as to achieve the effect of conveniently opening the sealing plug 15.

[0026] In the working process, the motor 6 is started to drive the screw rod 5 to rotate. When the screw rod 5 rotates, the moving block 4 moves up and down in the moving groove 3. When the moving block 4 moves, the moving plate 7 and the connecting rod 8 synchronously move, and when the connecting rod 8 moves, the top cover 10 on the top of the storage barrel 9 moves up and down, so as to achieve the effect of automatically opening the cover. The problem that the top cover 10 is difficult to open due to adhesion between the top cover 10 and the inner wall of the storage barrel 9 caused by low temperature is avoided, and the practicability is improved. The inner cylinder 13 is arranged to form a vacuum interlayer between the storage barrel 9 and the inner cylinder 13, so as to improve the heat insulation performance. The sealing plug 15 is arranged to seal the top of the storage barrel 9. The annular handle 17 can be pushed to rotate the sealing plug 15 in the limiting groove 14, so as to achieve the effect of conveniently opening the sealing plug 15. The pull ring 21 can be pulled to drive the sample tank 22 to move upward. When the sample tank 22 moves, the fixed rod 20 and the sliding block 19 synchronously move in the sliding groove 18, so as to achieve the purpose of conveniently placing and taking the sample tank 22. The control valve 24 can be used to control the pressure relief pipe 23 to release the air pressure in the inner cylinder 13, so as to avoid the safety hazard caused by excessive internal pressure. When the top of the bottom plate 1 vibrates, the damping rod 25 is compressed to move downward. When the damping rod 25 moves, the buffer spring 27 is synchronously retracted to move downward, so as to achieve the effect of buffering and damping.

[0027] Through the above steps, the motor 6 can drive the screw rod 5 to rotate by starting, when the screw rod 5 rotates, the moving block 4 moves up and down in the inside of the moving groove 3, when the moving block 4 moves, the moving plate 7 and the connecting rod 8 move synchronously, and when the connecting rod 8 moves, the top cover 10 on the top of the storage barrel 9 moves up and down, to achieve the effect of automatic opening, avoid the problem that the top cover 10 is adhered to the inner wall of the storage barrel 9 due to low temperature, so as to cause difficult to open, improve the practicality, to solve the common liquid nitrogen biological container, usually use screw to fix the sealing cover or sealing plug 15 on the top of the tank body for sealing, can play the effect of sealing and preventing leakage, but lack of automatic opening function, can't quickly open the sealing cover and pour liquid nitrogen into the tank body, easy to appear sealing cover due to ultra low temperature and tank body adhesion, lead to cover difficult to open, affect the normal use of liquid nitrogen biological container, thereby reducing the practicality of liquid nitrogen biological container.

Claims

1. A liquid nitrogen biological container with a protective cover for easy replenishment of liquid nitrogen, comprising a base plate (1); characterized in that: It also includes a lifting seat (2), a moving groove (3), a moving block (4), a lead screw (5), a motor (6), a moving plate (7), and a connecting rod (8). The lifting seat (2) is installed at the top rear end of the base plate (1). The moving groove (3) is opened on the front side of the lifting seat (2). The moving block (4) is installed inside the moving groove (3). The lead screw (5) is connected through the top of the moving block (4). The motor (6) is installed at the top of the lifting seat (2) corresponding to the position of the lead screw (5). The output end of the motor (6) passes through the lifting seat (2) and is connected to the upper end of the lead screw (5). The moving plate (7) is connected to the front side of the moving block (4). Two connecting rods (8) are symmetrically installed on the left and right sides of the front end of the moving plate (7). A storage tank (9) is installed at the top center of the base plate (1). A top cover (10) is installed on the top of the storage tank (9). An annular sealing plate (11) is installed on the lower side of the top cover (10). An annular groove (12) is opened at the top of the storage tank (9) corresponding to the position of the annular sealing plate (11).

2. The liquid nitrogen biological container with a protective cover for easy replenishment of liquid nitrogen according to claim 1, characterized in that: An inner cylinder (13) is provided at the center of the storage tank (9). A limiting groove (14) is provided at the top of the inner cylinder (13), and a sealing plug (15) is provided inside the limiting groove (14). A threaded interface (16) is installed at the center of the top of the sealing plug (15).

3. The liquid nitrogen biological container with a protective cover for easy replenishment of liquid nitrogen according to claim 2, characterized in that: The bottom of the limiting groove (14) is symmetrically provided with four sliding grooves (18). The sliding grooves (18) are provided with sliders (19). The outside of the sliders (19) is connected to a fixing rod (20). The other end of the fixing rod (20) is connected to a pull ring (21). The inner cylinder (13) is symmetrically provided with four sample containers (22) corresponding to the position of the pull ring (21). The bottom of the pull ring (21) is connected to the top of the sample container (22).

4. The liquid nitrogen biological container with a protective cover for easy replenishment of liquid nitrogen according to claim 1, characterized in that: The bottom of the inner cylinder (13) is connected to a pressure relief pipe (23), the other end of which passes through the bottom plate (1) and is located in front of it, and a control valve (24) is installed on the outer side of the front end of the pressure relief pipe (23).

5. The liquid nitrogen biological container with a protective cover for easy replenishment of liquid nitrogen according to claim 1, characterized in that: Four damping rods (25) are symmetrically installed at equal intervals on the bottom of the base plate (1). A piston sleeve (26) is installed at the lower end of the damping rod (25), and a buffer spring (27) is wrapped around the outer side of the damping rod (25). An annular base (28) is provided at the bottom of the piston sleeve (26).

6. The liquid nitrogen biological container with a protective cover for easy replenishment of liquid nitrogen according to claim 2, characterized in that: A ring handle (17) is installed on the top left side of the sealing plug (15), and the sealing plug (15) is a component made of thermal insulation foam material.

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