A cryogenic chamber with a ventilation structure

Abstract

This utility model discloses a cryogenic chamber with a ventilation structure, relating to the field of cryogenic chamber technology. It includes a chamber, with a drive box fixedly installed on one side inside the chamber. The drive box has a groove inside, and a stepper motor is fixedly installed on one side of the drive box. A lead screw is fixedly installed on the output end of the stepper motor, extending to the inner side of the groove. The beneficial effects of this utility model are: through the arrangement of the drive box, stepper motor, lead screw, sleeve, mounting plate, air intake, and air inlet, when ventilation is required in the chamber, simply turning on the air pump generates suction at the air intake to draw air from the chamber into the air intake and then discharge it outside. During the exhaust process, turning on the stepper motor drives the lead screw to rotate forward and backward. The lead screw, through its thread, drives the sleeve and air intake to move back and forth on one side of the chamber, allowing air to be discharged from different locations within the chamber through the movement of the air intake, thereby improving the ventilation efficiency of the chamber.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic chamber technology, specifically a cryogenic chamber with a ventilation structure. Background Technology

[0002] One of the main functions of low-temperature storage is food preservation. Under certain low-temperature conditions, the shelf life of food can be effectively extended and the loss of nutrients reduced. For example, some foods, such as ice cream and seafood, need to be stored at -25°C to prevent spoilage. In addition, low-temperature storage can also be used in the logistics of fruits and vegetables, providing suitable temperature and humidity conditions to maintain their freshness for a longer period under refrigeration.

[0003] Currently, the main method of ventilation in existing cryogenic chambers is to install exhaust fans. However, these fans are usually installed in fixed positions within the chamber. While they can expel air from the chamber, their ventilation efficiency is low. Ventilation from only one or a few locations cannot quickly expel and exchange air from all heights within the chamber, thus still having certain shortcomings. Therefore, we propose a cryogenic chamber with a ventilation structure. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a cryogenic chamber with a ventilation structure, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a low-temperature chamber with a ventilation structure, including a chamber, a drive box fixedly installed on one side inside the chamber, a groove opened inside the drive box, a stepper motor fixedly installed on one side of the drive box, a lead screw fixedly installed on the output end of the stepper motor extending to the inner side of the groove, a sleeve block threaded on the outer side of the lead screw, an installation plate fixedly installed on one side of the sleeve block, an air suction cylinder installed inside the installation plate, and a plurality of air suction ports opened inside one side of the air suction cylinder.

[0006] Furthermore, a partition is fixedly installed inside the warehouse, an air pump is fixedly installed on one side of the top of the partition, a mounting frame is fixedly installed on the side wall of the warehouse, a hollow roller is rotatably installed on the inner side of the mounting frame, a rotary joint is provided on the top of the hollow roller, a connecting pipe is fixedly installed at the input end of the air pump, one end of the connecting pipe is fixedly connected to the output end of the rotary joint, a connecting hose is wound around the outer side of the hollow roller, one end of the connecting hose is fixedly connected to the output end of the suction cylinder, a rotating shaft is fixedly installed at the bottom of the hollow roller, a worm gear is fixedly installed at one end of the rotating shaft, and a worm is fixedly installed at one end of the lead screw extending to the outer side of the drive box, the worm meshing with the worm gear.

[0007] Furthermore, the other end of the connecting hose extends into and communicates with the hollow roller.

[0008] Furthermore, an air intake grille is provided inside one side of the warehouse.

[0009] Furthermore, two guide rods are fixedly installed inside the groove, and the sleeve block is slidably connected to the guide rods.

[0010] Furthermore, the output end of the air pump extends to the outside of the warehouse.

[0011] This utility model provides a low-temperature chamber with a ventilation structure, which has the following beneficial effects:

[0012] 1. This low-temperature chamber with a ventilation structure, through the configuration of a drive box, stepper motor, lead screw, sleeve, mounting plate, air suction cylinder, and air intake, allows for ventilation when needed. Simply turn on the air pump to generate suction at the air intake, drawing air from the chamber into the air suction cylinder and then expelling it outside. During the exhaust process, the stepper motor drives the lead screw to rotate in both directions. The lead screw, through its thread, moves the sleeve and air suction cylinder back and forth on one side of the chamber, allowing air to be expelled from different locations within the chamber, thus improving the ventilation efficiency.

[0013] 2. This ventilated cryogenic chamber, through the arrangement of hollow rollers, rotary joints, connecting pipes, connecting hoses, rotating shafts, worm gears, and worms, allows the lead screw to rotate, driving the suction cylinder to move back and forth. Simultaneously, the worm at one end of the lead screw meshes with the worm gear, thereby driving the rotating shaft and hollow rollers to rotate in both directions. The rotation of the hollow rollers allows the connecting hose to be unwound when the suction cylinder moves to one side of the drive box, ensuring the connection between the connecting hose and the suction cylinder. When the lead screw rotates in reverse, the hollow rollers also rotate in reverse, thereby winding up the connecting hose and preventing it from scattering outside. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a partial structural schematic diagram of the present invention;

[0017] Figure 4 This utility model Figure 3 Enlarged view of point A in the image.

[0018] In the diagram: 1. Warehouse; 2. Drive box; 3. Groove; 4. Stepper motor; 5. Lead screw; 6. Sleeve block; 7. Mounting plate; 8. Air intake cylinder; 9. Air intake port; 10. Partition plate; 11. Air pump; 12. Mounting bracket; 13. Hollow roller; 14. Rotary joint; 15. Connecting pipe; 16. Connecting hose; 17. Shaft; 18. Worm gear; 19. Worm; 20. Guide rod; 21. Air intake grille. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: a low-temperature chamber with a ventilation structure, including a chamber 1. A drive box 2 is fixedly installed on one side of the chamber 1. The drive box 2 has a groove 3 inside. A stepper motor 4 is fixedly installed on one side of the drive box 2. The output end of the stepper motor 4 extends to the inner side of the groove 3 and a lead screw 5 is fixedly installed. A sleeve block 6 is threaded on the outer side of the lead screw 5. An installation plate 7 is fixedly installed on one side of the sleeve block 6. An air suction cylinder 8 is installed inside the installation plate 7. Several air suction ports 9 are opened on one side of the air suction cylinder 8. After the stepper motor 4 drives the lead screw 5 to rotate clockwise, the sleeve block 6 moves to one side of the drive box 2 through the thread on the outer side of the lead screw 5. This moves the installation plate 7 and the air suction cylinder 8 to one side of the drive box 2, thereby quickly exhausting air at different positions and heights in the chamber 1. At the same time, fresh air from outside the chamber 1 enters the chamber 1 through the air intake grille 21, achieving rapid ventilation.

[0021] A partition 10 is fixedly installed inside the warehouse 1. An air pump 11 is fixedly installed on one side of the top of the partition 10. A mounting frame 12 is fixedly installed on the side wall of the warehouse 1. A hollow roller 13 is rotatably installed on the inner side of the mounting frame 12. A rotary joint 14 is provided on the top of the hollow roller 13. A connecting pipe 15 is fixedly installed at the input end of the air pump 11. One end of the connecting pipe 15 is fixedly connected to the output end of the rotary joint 14. A connecting hose 16 is wound around the outside of the hollow roller 13. One end of the connecting hose 16 is fixedly connected to the output end of the suction cylinder 8. A rotating shaft 17 is fixedly installed at the bottom of the hollow roller 13. A worm gear 18 is fixedly installed at one end of the rotating shaft 17. One end of the lead screw 5 extends... A worm gear 19 is fixedly installed on the outside of the drive box 2, and the worm gear 19 meshes with the worm wheel 18. The setting of the rotary joint 14 can ensure that the connecting pipe 15 is connected to the hollow roller 13 when the hollow roller 13 rotates, so that air can be discharged. When the screw 5 rotates, the worm gear 19 meshes with the worm wheel 18, which can drive the rotating shaft 17 and the hollow roller 13 to rotate, and then unwind the connecting hose 16 on the hollow roller 13, so that the connecting hose 16 can be extended to connect with the air suction cylinder 8 when it moves. Similarly, when the screw 5 reverses, it will also drive the hollow roller 13 to reverse and wind up the connecting hose 16, so as to prevent the connecting hose 16 from falling outside and affecting the movement of the air suction cylinder 8.

[0022] The other end of the connecting hose 16 extends into and communicates with the hollow roller 13; through the communication between the connecting hose 16 and the hollow roller 13, the air inside the hollow roller 13 can be discharged by the air pump 11, so that the air in the connecting hose 16 is discharged through the hollow roller 13, and at the same time, the air in the suction cylinder 8 enters the hollow roller 13 through the connecting hose 16 and is discharged, and the air in the warehouse 1 is discharged through several suction ports 9 on one side of the suction cylinder 8.

[0023] An air intake grille 21 is provided inside one side of the warehouse 1. By setting the air intake grille 21, fresh air from outside the warehouse 1 can enter the warehouse 1 after the air inside the warehouse 1 is discharged by the air pump 11, thereby achieving ventilation inside the warehouse 1.

[0024] Two guide rods 20 are fixedly installed inside the groove 3, and the sleeve block 6 is slidably connected to the guide rods 20. By setting the guide rods 20, the sleeve block 6 will not rotate at the same time as the lead screw 5 when the lead screw 5 rotates, thus preventing it from moving through the thread.

[0025] The output end of the air pump 11 extends to the outside of the warehouse 1; by extending the output end of the air pump 11 to the outside of the warehouse 1, the air inside the warehouse 1 can be discharged.

[0026] In summary, this cryogenic chamber with a ventilation structure, when ventilating the chamber 1, is activated by turning on the air pump 11 and the stepper motor 4. After the air pump 11 is activated, air is discharged from the hollow roller 13 through the connecting pipe 15. After the air in the hollow roller 13 is discharged, air is discharged from the connecting hose 16 and the suction cylinder 8, thereby generating suction at the suction port 9. This draws air out of the chamber 1 and discharges it outside through the air pump 11. Fresh air from outside the chamber 1 enters the chamber 1 through the air intake grille 21, thus achieving ventilation. Simultaneously, the stepper motor 4 is activated... The screw 5 is driven to rotate in both directions. The screw 5 drives the sleeve block 6 and the suction cylinder 8 to move back and forth on one side of the warehouse 1 through the thread. The movement of the suction cylinder 8 can exhaust air from different positions in the warehouse 1. At the same time, when the screw 5 rotates in both directions, the worm gear 19 meshes with the worm wheel 18, which drives the rotating shaft 17 and the hollow roller 13 to rotate. This unwinds the connecting hose 16 on the hollow roller 13, ensuring that the connecting hose 16 can be extended and connected to the suction cylinder 8 when it moves. Similarly, when the screw 5 rotates in reverse, it will also drive the hollow roller 13 to rotate in reverse to wind up the connecting hose 16.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cryogenic bunker with a ventilation structure, comprising a bunker house (1), characterized in that: A drive box (2) is fixedly installed on one side of the warehouse (1). A groove (3) is provided inside the drive box (2). A stepper motor (4) is fixedly installed on one side of the drive box (2). A lead screw (5) is fixedly installed on the output end of the stepper motor (4) extending to the inside of the groove (3). A sleeve block (6) is threaded on the outside of the lead screw (5). An installation plate (7) is fixedly installed on one side of the sleeve block (6). An air suction cylinder (8) is installed inside the installation plate (7). Several air suction ports (9) are provided inside one side of the air suction cylinder (8).

2. The cryogenic container with a venting structure of claim 1, wherein: A partition (10) is fixedly installed inside the warehouse (1). An air pump (11) is fixedly installed on one side of the top of the partition (10). A mounting frame (12) is fixedly installed on the side wall of the warehouse (1). A hollow roller (13) is rotatably installed on the inner side of the mounting frame (12). A rotary joint (14) is provided on the top of the hollow roller (13). A connecting pipe (15) is fixedly installed at the input end of the air pump (11). One end of the connecting pipe (15) is connected to the rotary joint (14). 4) The output end is fixedly connected, and a connecting hose (16) is wound around the outside of the hollow roller (13). One end of the connecting hose (16) is fixedly connected to the output end of the suction cylinder (8). A rotating shaft (17) is fixedly installed at the bottom of the hollow roller (13). A worm gear (18) is fixedly installed at one end of the rotating shaft (17). A worm (19) is fixedly installed at one end of the lead screw (5) extending to the outside of the drive box (2). The worm (19) meshes with the worm gear (18).

3. The cryogenic container with a venting structure of claim 2, wherein: The other end of the connecting hose (16) extends into and communicates with the hollow roller (13).

4. The cryogenic container with a venting structure of claim 1, wherein: An air intake grille (21) is provided inside one side of the warehouse (1).

5. The cryogenic container with a venting structure of claim 1, wherein: Two guide rods (20) are fixedly installed inside the groove (3), and the sleeve block (6) is slidably connected to the guide rods (20).

6. The cryogenic container with a venting structure of claim 2, wherein: The output end of the air pump (11) extends to the outside of the warehouse (1).

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