Liquid nitrogen ultralow-temperature quick-freezing equipment

Abstract

The utility model discloses liquid nitrogen ultralow-temperature quick-freezing equipment, which is applied to the field of quick-freezing equipment and comprises a cabinet body, a cabinet door is hinged to the front side of the cabinet body through a hinge piece, a controller is mounted on one side of the cabinet body, and a liquid nitrogen storage box is mounted on one side of the cabinet body through a fixing piece. A liquid nitrogen storage box is arranged in the cabinet body, a pressure return pipe is communicated between the liquid nitrogen storage box and the cabinet body, a liquid flowing header pipe is installed in the cabinet body, a supporting seat is arranged in the cabinet body, and a lead screw in threaded connection with the supporting seat is rotationally connected into the cabinet body through a bearing; the supporting seat is designed in the cabinet body, when the servo motor is started, the supporting seat can be driven to move from the inside of the cabinet body to the outside under the action of the lead screw, and a worker only needs to place a support with objects to be quickly frozen on the supporting seat, so that the purposes of feeding the support into the cabinet body and pulling the support out of the cabinet body can be achieved; workers are prevented from being frostbitten by the inner wall of the cabinet body, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of quick-freezing equipment, in particular to a liquid nitrogen ultra-low temperature quick-freezing equipment. Background Technique

[0002] The liquid nitrogen quick-freezing cabinet is a new type of freezing equipment, which can quickly freeze the things to be frozen and achieve the purpose of fresh-keeping and water-locking.

[0003] At present, most of the structures of the liquid nitrogen quick-freezing cabinets on the market are similar. When in use, the bracket carrying the things to be quick-frozen needs to be pushed into the liquid nitrogen quick-freezing cabinet. After the quick-freezing is completed, the bracket needs to be pulled out and the quick-frozen things on the bracket need to be taken off. When pulling out and pushing in, due to the ultra-low temperature inside the liquid nitrogen quick-freezing cabinet, it lacks the structure for automatic pushing in and pulling out. When working, the staff is very easy to touch the inner wall of the liquid nitrogen quick-freezing cabinet, resulting in frostbite on the surface skin, and the safety is poor. At the same time, when the traditional liquid nitrogen quick-freezing cabinet is opened, it lacks the structure for keeping the temperature. The atomized liquid nitrogen is very easy to diffuse to the outside through the opening of the quick-freezing cabinet, causing waste of liquid nitrogen. At the same time, the dust and flying insects outside are easy to enter the liquid nitrogen quick-freezing cabinet, affecting the health and safety, and the practicability is poor. Content of the Utility Model

[0004] The purpose of the utility model is to provide a liquid nitrogen ultra-low temperature quick-freezing equipment, and its advantages are frostbite prevention and strong practicability.

[0005] The above technical purpose of the utility model is realized through the following technical solutions:

[0006] A liquid nitrogen ultra-low temperature quick-freezing equipment, including a cabinet body, the front of the cabinet body is hinged with a cabinet door through a hinge, one side of the cabinet body is provided with a controller, one side of the cabinet body is installed with a liquid nitrogen storage tank through a fixing member, a back pressure pipe is communicated between the liquid nitrogen storage tank and the cabinet body, and a liquid flow main pipe is installed inside the cabinet body;

[0007] A support seat is arranged inside the cabinet body, a lead screw threadedly connected with the support seat is rotatably connected inside the cabinet body through a bearing, and a servo motor bolted with the lead screw is installed on the back of the cabinet body through a fixing member;

[0008] A cavity is bolted on the top of the cabinet body, a connecting plate is bolted inside the cavity, a rotating rod is rotatably connected to the connecting plate through a bearing, the number of the rotating rods is three, a stepping motor bolted with the rotating rod is installed inside the cavity through a fixing member, one end of the rotating rod is fixedly sleeved with a guide air fan blade, and a first guide plate and a second guide plate are respectively bolted inside the cavity.

[0009] With the above technical solution, in the present utility model, a support base is designed inside the cabinet body. When the servo motor is started, under the action of the lead screw, the support base can be driven to move from the inside of the cabinet body to the outside. The staff only needs to place the bracket with the objects to be quickly frozen on the support base, and then the purpose of sending the bracket into the cabinet body and pulling it out of the cabinet body can be achieved, preventing the staff from being frostbitten by the inner wall of the cabinet body and improving safety. By installing a cavity on the top of the cabinet body and a rotating rod inside the cavity, when the stepping motor is started, under the action of the rotating wheel and the belt, the three air guide fan blades rotate simultaneously, driving the external air flow into the cavity. Then, through the action of the first guide plate and the second guide plate, the air flow is compressed to form an air curtain to protect the opening of the cabinet body, preventing the atomized liquid nitrogen inside the cabinet body from overflowing and causing waste and preventing external dust and impurities from entering the cabinet body and affecting hygiene, thus improving the practicability.

[0010] The present utility model is further provided as follows: A guide block is bolted inside the cabinet body, and a guide groove for cooperating with the guide block is opened at the bottom of the support base.

[0011] With the above technical solution, sliding limit is carried out on the support base.

[0012] The present utility model is further provided as follows: A moving guide wheel is installed at the transverse end of the support base through a fixing member, and a cushion block is installed at the bottom of the cabinet body.

[0013] With the above technical solution, mobile support is carried out on the support base and support is carried out on the cabinet body.

[0014] The present utility model is further provided as follows: A liquid nitrogen delivery pump is installed on the liquid nitrogen storage tank through a fixing member. The input end of the liquid nitrogen delivery pump and the liquid nitrogen storage tank are connected through a pipeline, and a distribution pipe is connected between the output end of the liquid nitrogen delivery pump and the liquid nitrogen main pipe.

[0015] With the above technical solution, it is convenient to deliver liquid nitrogen into the liquid nitrogen main pipe.

[0016] The present utility model is further provided as follows: The bottom of the liquid nitrogen main pipe is communicated with a liquid nitrogen distribution pipe, and an atomizing nozzle is installed at the bottom of the liquid nitrogen distribution pipe.

[0017] With the above technical solution, it is convenient for liquid nitrogen to be atomized and ejected.

[0018] The present utility model is further provided as follows: A driving motor is installed on the back of the cabinet body through a fixing member. The output end of the driving motor penetrates into the cabinet body and is fixedly sleeved with an even fan blade.

[0019] With the above technical solution, it is convenient to homogenize the atomized liquid nitrogen, making the quick-frozen items more uniform.

[0020] The present utility model is further configured such that: a rotating wheel is fixedly sleeved on the surface of the rotating rod, and the two rotating wheels are connected by belt drive.

[0021] With the above technical solution, it is convenient for the three rotating rods to rotate simultaneously.

[0022] The present utility model is further configured such that: a dust-proof net is installed inside the cavity through a fixing member.

[0023] With the above technical solution, it prevents dust from entering the cavity.

[0024] In summary, the present utility model has the following beneficial effects:

[0025] 1. The present utility model is designed with a support base inside the cabinet body. When the servo motor is started, under the action of the lead screw, the support base can be driven to move from inside the cabinet body to the outside. The staff only needs to place the bracket with the objects to be quickly frozen on the support base, and then the purpose of sending the bracket into the cabinet body and pulling it out of the cabinet body can be achieved, preventing the staff from being frostbitten by the inner wall of the cabinet body and improving safety.

[0026] 2. The present utility model is provided with a cavity installed on the top of the cabinet body, and a rotating rod is installed inside the cavity. When the stepper motor is started, under the action of the rotating wheel and the belt, the three air guide fan blades rotate simultaneously, driving the external air flow into the cavity. Then, through the action of the first guide plate and the second guide plate, the air flow is compressed to form an air curtain to protect the opening of the cabinet body, preventing the atomized liquid nitrogen inside the cabinet body from overflowing and causing waste and preventing external dust and impurities from entering the cabinet body and affecting hygiene, thus improving the practicability. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of the present utility model;

[0028] Figure 2 is the side cross-sectional view of the cabinet body structure of the present utility model;

[0029] Figure 3 is the front cross-sectional view of the cabinet body structure of the present utility model;

[0030] Figure 4 is the present utility model Figure 2 the enlarged view at A;

[0031] Figure 5 is the front cross-sectional view of the cavity structure of the present utility model;

[0032] Figure 6 is the side cross-sectional view of the cavity structure of the present utility model.

[0033] Reference numerals: 1, cabinet body; 2, cabinet door; 3, controller; 4, liquid nitrogen storage tank; 5, main liquid flow pipe; 6, support seat; 7, lead screw; 8, servo motor; 9, cavity; 10, connecting plate; 11, rotating rod; 12, stepper motor; 13, air guide fan blade; 14, first deflector; 15, second deflector; 16, guide block; 17, guide groove; 18, moving guide wheel; 19, cushion block; 20, liquid nitrogen delivery pump; 21, pipe; 22, branch liquid flow pipe; 23, atomizing nozzle; 24, drive motor; 25, uniform air fan blade; 26, rotating wheel; 27, dust-proof net; 28, back pressure pipe. Detailed implementation manners

[0034] The following further describes the present utility model in detail with reference to the accompanying drawings.

[0035] Embodiment 1:

[0036] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , a liquid nitrogen ultra-low temperature quick-freezing device, including a cabinet body 1, the front surface of the cabinet body 1 is hinged with a cabinet door 2 through a hinge, one side of the cabinet body 1 is provided with a controller 3, one side of the cabinet body 1 is provided with a liquid nitrogen storage tank 4 through a fixing member, a back pressure pipe 28 is communicated between the liquid nitrogen storage tank 4 and the cabinet body 1, a main liquid flow pipe 5 is installed inside the cabinet body 1, a support seat 6 is arranged inside the cabinet body 1, a lead screw 7 threadedly connected with the support seat 6 is rotatably connected inside the cabinet body 1 through a bearing, and a servo motor 8 bolted to the lead screw 7 is installed on the back surface of the cabinet body 1 through a fixing member. By designing a support seat 6 inside the cabinet body 1, when the servo motor 8 is started, the support seat 6 can be driven to move from inside the cabinet body 1 to the outside under the action of the lead screw 7. The staff only needs to place the bracket with the object to be quick-frozen on the support seat 6, so as to achieve the purpose of sending the bracket into the cabinet body 1 and pulling it out of the cabinet body 1, preventing the staff from being frostbitten by the inner wall of the cabinet body 1 and improving safety.

[0037] Refer to Figure 2 and Figure 4 , a guide block 16 is bolted inside the cabinet body 1, and a guide groove 17 matched with the guide block 16 is formed at the bottom of the support seat 6. By providing the guide block 16 and the guide groove 17, sliding limit of the support seat 6 is carried out.

[0038] Refer to Figure 2 and Figure 4 , a moving guide wheel 18 is installed at the transverse end of the support seat 6 through a fixing member, and a cushion block 19 is installed at the bottom of the cabinet body 1. By providing the moving guide wheel 18 and the cushion block 19, moving support for the support seat 6 and support for the cabinet body 1 are carried out.

[0039] Refer to Figure 1, a liquid nitrogen transfer pump 20 is installed on the liquid nitrogen storage tank 4 through a fixing member. The input end of the liquid nitrogen transfer pump 20 and the liquid nitrogen storage tank 4 are connected through a pipeline, and a piping 21 is connected between the output end of the liquid nitrogen transfer pump 20 and the liquid nitrogen main pipe 5. By setting the liquid nitrogen transfer pump 20 and the piping 21, it is convenient to transfer liquid nitrogen into the liquid nitrogen main pipe 5.

[0040] Reference Figure 2 and Figure 3 , a liquid nitrogen branch pipe 22 is connected to the bottom of the liquid nitrogen main pipe 5, and an atomizing nozzle 23 is installed at the bottom of the liquid nitrogen branch pipe 22. By setting the liquid nitrogen branch pipe 22 and the atomizing nozzle 23, it is convenient for liquid nitrogen to be atomized and ejected.

[0041] Reference Figure 2 , a driving motor 24 is installed on the back of the cabinet body 1 through a fixing member. The output end of the driving motor 24 penetrates into the interior of the cabinet body 1 and is fixedly sleeved with an even fan blade 25. By setting the driving motor 24 and the even fan blade 25, it is convenient to homogenize the atomized liquid nitrogen, making it more uniform when quickly freezing items.

[0042] Brief description of the usage process: There is a support base 6 designed inside the cabinet body 1. When the servo motor 8 is started, under the action of the lead screw 7, the support base 6 can be driven to move from the inside of the cabinet body 1 to the outside. The staff only needs to place the bracket with the items to be quickly frozen on the support base 6, and then the purpose of sending the bracket into the cabinet body 1 and pulling it out of the cabinet body 1 can be achieved, preventing the staff from being frostbitten by the inner wall of the cabinet body 1 and improving safety.

[0043] Embodiment 2:

[0044] Reference Figure 1 、 Figure 5 and Figure 6 , a liquid nitrogen ultra-low temperature quick-freezing device, a cavity 9 is bolted to the top of the cabinet body 1, a connecting plate 10 is bolted inside the cavity 9, a rotating rod 11 is rotatably connected to the connecting plate 10 through a bearing. The number of the rotating rods 11 is three. A stepping motor 12 bolted to the rotating rod 11 is installed inside the cavity 9 through a fixing member. One end of the rotating rod 11 is fixedly sleeved with a guide fan blade 13. A first guide plate 14 and a second guide plate 15 are respectively bolted inside the cavity 9. By installing the cavity 9 on the top of the cabinet body 1 and installing the rotating rod 11 inside the cavity 9, when the stepping motor 12 is started, under the action of the rotating wheel 26 and the belt, the three guide fan blades 13 rotate simultaneously, driving the external air flow into the cavity 9, and then through the action of the first guide plate 14 and the second guide plate 15, the air flow is compressed to form an air curtain to protect the opening of the cabinet body 1, preventing the atomized liquid nitrogen inside the cabinet body 1 from overflowing and causing waste and preventing external dust and impurities from entering the cabinet body 1 and affecting hygiene, improving practicality.

[0045] Reference Figure 5 andFigure 6 , a rotating wheel 26 is fixedly sleeved on the surface of the rotating rod 11, and the two rotating wheels 26 are connected by belt drive. By setting the rotating wheel 26, it is convenient for the three rotating rods 11 to rotate simultaneously.

[0046] Reference Figure 1 , a dust-proof net 27 is installed inside the cavity 9 through a fixing member. By setting the dust-proof net 27, dust is prevented from entering the cavity 9.

[0047] Brief description of the usage process: A cavity 9 is installed on the top of the cabinet body 1, and a rotating rod 11 is installed inside the cavity 9. When the stepping motor 12 is started, under the action of the rotating wheel 26 and the belt, the three air guide fan blades 13 rotate simultaneously, driving the external air flow into the cavity 9. Then, through the action of the first guide plate 14 and the second guide plate 15, the air flow is compressed to form an air curtain, which protects the opening of the cabinet body 1, prevents the atomized liquid nitrogen inside the cabinet body 1 from overflowing and causing waste, and prevents external dust and impurities from entering the cabinet body 1 and affecting hygiene, thereby improving the practicability.

Claims

1. A liquid nitrogen ultra-low temperature quick freezing device, comprising a cabinet (1), characterized in that: The front of the cabinet (1) is hinged with a cabinet door (2) via a hinge, a controller (3) is installed on one side of the cabinet (1), a liquid nitrogen storage box (4) is installed on one side of the cabinet (1) via a fixing member, a back pressure pipe (28) is connected between the liquid nitrogen storage box (4) and the cabinet (1), and a liquid main pipe (5) is installed inside the cabinet (1); A support seat (6) is arranged inside the cabinet (1), a screw rod (7) threadedly connected to the support seat (6) is rotatably connected inside the cabinet (1) via a bearing, and a servo motor (8) bolted to the screw rod (7) is installed on the back of the cabinet (1) via a fixing member; The top of the cabinet (1) is bolted to a cavity (9), the interior of the cavity (9) is bolted to a connecting plate (10), the connecting plate (10) is rotatably connected to a rotating rod (11) via a bearing, the number of the rotating rods (11) is three, a stepping motor (12) bolted to the rotating rod (11) is installed inside the cavity (9) via a fixing member, one end of the rotating rod (11) is fixedly sleeved with an air guide blade (13), and a first guide plate (14) and a second guide plate (15) are respectively bolted inside the cavity (9).

2. A liquid nitrogen ultra-low temperature quick freezing device according to claim 1, characterized in that: A guide block (16) is bolted inside the cabinet (1), and a guide groove (17) for use with the guide block (16) is provided at the bottom of the support seat (6).

3. The liquid nitrogen ultra-low temperature quick freezing equipment according to claim 1, characterized in that: A movable guide wheel (18) is installed at the horizontal end of the support seat (6) via a fixing piece, and a cushion block (19) is installed at the bottom of the cabinet (1).

4. The liquid nitrogen ultra-low temperature quick freezing equipment according to claim 1, characterized in that: A liquid nitrogen delivery pump (20) is mounted on the liquid nitrogen storage tank (4) via a fixing member; an input end of the liquid nitrogen delivery pump (20) and the liquid nitrogen storage tank (4) are connected via a pipeline; and a distribution pipe (21) is connected between an output end of the liquid nitrogen delivery pump (20) and the liquid main pipe (5).

5. The liquid nitrogen ultra-low temperature quick freezing equipment according to claim 1, characterized in that: The bottom of the liquid main pipe (5) is connected to a liquid branch pipe (22), and an atomizing nozzle (23) is installed at the bottom of the liquid branch pipe (22).

6. The liquid nitrogen ultra-low temperature quick freezing equipment according to claim 1, characterized in that: A driving motor (24) is mounted on the back of the cabinet (1) via a fixing member, and an output end of the driving motor (24) penetrates into the interior of the cabinet (1) and is fixedly sleeved with a fan blade (25).

7. The liquid nitrogen ultra-low temperature quick freezing equipment according to claim 1, characterized in that: A rotating wheel (26) is fixedly sleeved on the surface of the rotating rod (11), and the two rotating wheels (26) are connected via a belt transmission.

8. The liquid nitrogen ultra-low temperature quick freezing equipment according to claim 1, characterized in that: A dustproof net (27) is installed inside the cavity (9) via a fixing member.

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