Safety door of controlled atmosphere fresh-keeping storehouse

Abstract

The utility model discloses a safety door of a controlled atmosphere fresh-keeping storehouse, and relates to the technical field of safety doors. The safety door comprises a wall body, linear guide rails are fixedly connected to the outer side of the top of the wall body, two inclined guide rails are fixedly connected to the linear guide rails, a safety door body is arranged on the outer side of the wall body and below the other linear guide rails, and symmetrically-distributed fixing plates are fixedly connected to the top end of the safety door body. Rollers are rotationally connected to the sides, close to the wall body, of the fixing plates; through cooperation of a servo motor, a first gear, a first rack, an inclined guide rail, a linear guide rail and a rolling wheel, the safety door body is firstly driven to move upwards, so that a sealing strip is separated from the ground, friction between the sealing strip and the ground is avoided, then the safety door body horizontally moves towards one side of the servo motor, and therefore the safety door body is opened; and when the safety door body is closed, the sealing strip can make close contact with the ground, so that the sealing performance of the safety door body is improved, and the practicability of the safety door of the fresh-keeping storehouse is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a safety door for a controlled atmosphere fresh-keeping warehouse. Background Art

[0002] A controlled atmosphere fresh-keeping warehouse is a facility used to store food. It controls the gas composition, temperature and humidity in the warehouse to extend the shelf life of food. Foods that usually use controlled atmosphere fresh-keeping technology include perishable foods such as fruits, vegetables, meat and seafood. This technology can slow down the respiration of food and the growth of microorganisms, thereby reducing food spoilage and quality loss. The safety door of a controlled atmosphere fresh-keeping warehouse refers to the door used for the entrance and exit of a controlled atmosphere fresh-keeping warehouse. It usually has a special design and function to ensure the stability of the warehouse environment and the safety of food. These doors may have sealing properties to prevent outside air from entering the warehouse, and may also be equipped with a special control system to ensure that the gas composition, temperature and humidity in the warehouse remain within an appropriate range.

[0003] However, the bottom of the traditional controlled atmosphere fresh-keeping warehouse safety door is sealed by setting a sliding guide rail and cooperating with a sealing strip. There is a certain height difference between the setting of the sliding guide rail and the ground, which easily causes obstruction when the goods enter and exit. When the guide rail is damaged, it may cause the movement of the door to be unstable or even stuck. In view of the above problems, the inventor proposes a controlled atmosphere fresh-keeping warehouse safety door to solve the above problems. Utility Model Content

[0004] In order to solve the problem of rationality of the safety door of the atmosphere-controlled fresh-keeping warehouse, the purpose of the utility model is to provide a safety door of the atmosphere-controlled fresh-keeping warehouse.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a safety door of a controlled atmosphere fresh-keeping warehouse, comprising a wall, a linear guide rail is fixedly connected to the outer side of the top of the wall, two inclined guide rails are fixedly connected to the linear guide rail, a safety door body is arranged on the outer side of the wall and below the remaining linear guide rails, thermal insulation cotton is arranged inside the safety door body, the top of the safety door body is fixedly connected to a symmetrically distributed fixing plate, the fixing plate is rotatably connected to a side close to the wall, the roller is rotatably engaged in the linear guide rail, the bottom end of the safety door body is fixedly connected to a sealing strip, the top of the safety door body is fixedly connected to a rack 1 on one side close to the fixing plate, the outer side of the top of the wall is fixedly connected to a mounting plate, the bottom end of the mounting plate is fixedly installed with a servo motor, the driving end of the servo motor is fixedly connected to a gear 1, the gear 1 is meshed with the rack 1, and the length of the gear 1 is greater than the width of the rack 1.

[0006] Preferably, a fixed frame is fixedly installed on the inner side of the wall, and a gear 2 is rotatably connected inside the fixed frame. A moving plate with a centrally symmetrical distribution is slidably clamped on the top of the inner wall of the fixed frame, and a rack 2 is fixedly connected on the opposite side of the moving plate. The gear 2 and the rack 2 are meshingly connected, and a through groove with a centrally symmetrical distribution is opened on the top of the fixed frame. The moving plate is slidably clamped in the corresponding through groove, and a clamping plate is fixedly connected to the top of the moving plate, and a gas analyzer is clamped and installed between the two clamping plates.

[0007] Preferably, a worm wheel is fixedly connected to the outer side of the rotating shaft of the gear 2 at the top of the fixed frame, and a worm is rotatably connected to the inner side of the fixed frame close to the worm wheel. The worm wheel and the worm are meshingly connected, and one end of the rotating shaft of the worm extends to the outside of the fixed frame and is fixedly connected.

[0008] Preferably, a PLC controller is fixedly installed on the side of the outer side of the wall close to the safety door body, and the servo motor and the gas analyzer are both electrically connected to the PLC controller.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. Through the cooperation among the servo motor, gear 1, rack 1, inclined guide rail, linear guide rail and roller, the safety door body is first driven to move upward to separate the sealing strip from the ground to avoid friction between the sealing strip and the ground, and then move horizontally to one side of the servo motor to open the safety door body. When the safety door body is closed, the sealing strip can be in close contact with the ground, thereby increasing the sealing performance of the safety door body and further improving the practicality of the safety door of the fresh-keeping warehouse;

[0011] 1. By setting up a gas analyzer, the oxygen inside the fresh-keeping warehouse is monitored. When the oxygen inside the fresh-keeping warehouse is in a low oxygen state, the safety door body cannot be opened to avoid life-threatening problems when personnel enter the cold-keeping warehouse under a low oxygen state. When installing the gas analyzer, the coordination between the gear 2, the moving plate, the worm gear, the worm, the rack 2 and the clamping plate facilitates installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the whole and split structure of the utility model.

[0015] Figure 3 This is a schematic diagram of the installation structure of the gas analyzer in the utility model.

[0016] Figure 4 It is a partial cross-sectional view of the utility model.

[0017] In the figure: 1. Wall; 2. Linear guide; 3. Oblique guide; 4. Safety door body; 5. Fixed plate; 6. Roller; 7. Sealing strip; 8. Rack 1; 9. Mounting plate; 10. Servo motor; 11. Gear 1; 12. Fixed frame; 13. Gear 2; 14. Moving plate; 15. Through slot; 16. Worm gear; 17. Worm; 18. Knob; 19. Rack 2; 20. Clamp; 21. Gas analyzer; 22. PLC controller. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example: Figure 1-4 As shown, the utility model provides a safety door for a controlled atmosphere fresh-keeping warehouse, comprising a wall 1, a linear guide rail 2 is fixedly connected to the outer side of the top of the wall 1, two inclined guide rails 3 are fixedly connected to the linear guide rail 2, a safety door body 4 is arranged on the outer side of the wall 1 and below the remaining linear guide rails 2, the top of the safety door body 4 is fixedly connected to a symmetrically distributed fixing plate 5, the fixing plate 5 is rotatably connected to a side close to the wall 1 with a roller 6, the roller 6 is rollingly clamped in the linear guide rail 2, the bottom end of the safety door body 4 is fixedly connected to a sealing strip 7, the top of the safety door body 4 is fixedly connected to a side close to the fixing plate 5 with a rack 8, the outer side of the top of the wall 1 is fixedly connected to a mounting plate 9, the bottom end of the mounting plate 9 is fixedly installed with a servo motor 10, the driving end of the servo motor 10 is fixedly connected to a gear 11, the gear 11 is meshed with the rack 8, and the length of the gear 11 is greater than the width of the rack 8.

[0020] A fixed frame 12 is fixedly installed on the inner side of the wall 1, and a gear 2 13 is rotatably connected inside the fixed frame 12. A moving plate 14 with a central symmetrical distribution is slidably clamped on the top of the inner wall of the fixed frame 12. A rack 2 19 is fixedly connected on the opposite side of the moving plate 14. The gear 2 13 and the rack 2 19 are meshingly connected. A through groove 15 with a central symmetrical distribution is opened on the top of the fixed frame 12. The moving plate 14 is slidably clamped in the corresponding through groove 15. A clamping plate 20 is fixedly connected to the top of the moving plate 14, and a gas analyzer 21 is clamped and installed between the two clamping plates 20.

[0021] By adopting the above technical solution, a gas analyzer 21 is set to monitor the oxygen inside the cold storage. When the oxygen inside the cold storage is in a low oxygen state, the safety door body 4 cannot be opened, so as to avoid the life-threatening problem of personnel entering the cold storage under a low oxygen state. When installing the gas analyzer 21, the gas analyzer 21 is placed between two clamping plates 20, and the gear 2 13 is rotated to engage with the two movable plates 14 respectively, thereby driving the two clamping plates 20 to move to one side of the gas analyzer 21, and the gas analyzer 21 is fixedly installed by the clamping plates 20.

[0022] A worm wheel 16 is fixedly connected to the outer side of the rotating shaft of the top gear 2 13 of the fixed frame 12, and a worm 17 is rotatably connected to the inner side of the fixed frame 12 close to the worm wheel 16. The worm wheel 16 and the worm 17 are meshingly connected, and one end of the rotating shaft of the worm 17 extends to the outside of the fixed frame 12 and is fixedly connected to a knob 18.

[0023] By adopting the above technical solution, by rotating the knob 18, the worm 17 is driven to rotate at the same time, and the worm wheel 16 and the worm 17 are meshed and connected, and the gear 2 13 is driven to rotate at the same time, so as to adjust the distance between the two clamping plates 20. At the same time, the reverse self-locking property of the worm wheel 16 and the worm 17 is utilized to prevent the gear 2 13 from rotating spontaneously, thereby ensuring the stability of the gas analyzer 21 during installation.

[0024] A PLC controller 22 is fixedly installed on the outer side of the wall 1 near the safety door body 4 , and the servo motor 10 and the gas analyzer 21 are both electrically connected to the PLC controller 22 .

[0025] By adopting the above technical solution and setting up the PLC controller 22, it is convenient to better control the equipment to work.

[0026] The interior of the safety door body 4 is provided with heat-insulating cotton.

[0027] By adopting the above technical solution and arranging thermal insulation cotton inside the safety door body 4, the thermal insulation performance of the safety door body 4 is further improved.

[0028] Working principle: when using the installation door, the oxygen inside the fresh-keeping warehouse is monitored by setting a gas analyzer 21. When the oxygen inside the fresh-keeping warehouse is in a low oxygen state, the safety door body 4 cannot be opened, so as to avoid the life-threatening problem of personnel entering the thermal insulation warehouse under a low oxygen state. When installing the gas analyzer 21, the gas analyzer 21 is placed between the two clamping plates 20, and the knob 18 is turned to drive the worm 17 to rotate at the same time, and the worm wheel 16 and the worm 17 are meshed and connected, and the gear 2 13 is driven to rotate at the same time, and the gear 2 13 is respectively meshed and connected with the two moving plates 14, and the two clamping plates 20 are driven to move to one side of the gas analyzer 21, so that the clamping plate 20 is used to fix the gas analyzer 21. Similarly, the gas analyzer 21 can be conveniently disassembled by rotating the knob 18 in the opposite direction, and the reverse self-locking property of the worm wheel 16 and the worm 17 is used to prevent the gear 2 13 from rotating spontaneously, thereby ensuring the stability of the gas analyzer 21 during installation.

[0029] When it is necessary to open the safety door body 4, the servo motor 10 drives the gear 11 to rotate, and the gear 11 and the rack 8 are meshed and connected. At the same time, the length of the gear 11 is greater than the width of the rack 8, and the rack 8 is driven to move to one side of the servo motor 10, and the inclined guide rail 3 and the linear guide rail 2 are used to guide the movement of the roller 6, first driving the safety door body 4 to move upward to separate the sealing strip 7 from the ground to avoid friction between the sealing strip 7 and the ground, and then moving horizontally to one side of the servo motor 10 to open the safety door body 4. When it is necessary to close the safety door body 4, the servo motor 10 rotates in the opposite direction. Similarly, the safety door body 4 is closed. When the roller 6 moves downward under the guidance of the inclined guide rail 3, the sealing strip 7 moves synchronously and is in close contact with the ground, thereby increasing the sealing of the safety door body 4.

[0030] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A safety door for a controlled atmosphere fresh-keeping warehouse, comprising a wall (1), characterized in that: A linear guide rail (2) is fixedly connected to the outer side of the top of the wall (1), and two inclined guide rails (3) are fixedly connected to the linear guide rail (2). A safety door body (4) is arranged on the outer side of the wall (1) and below the remaining linear guide rails (2). A symmetrically distributed fixing plate (5) is fixedly connected to the top of the safety door body (4). A roller (6) is rotatably connected to the side of the fixing plate (5) close to the wall (1), and the roller (6) is rotatably engaged with the linear guide rail ( 2), a sealing strip (7) is fixedly connected to the bottom end of the safety door body (4), a rack (8) is fixedly connected to the top of the safety door body (4) near the fixed plate (5), a mounting plate (9) is fixedly connected to the outer side of the top of the wall (1), a servo motor (10) is fixedly installed at the bottom end of the mounting plate (9), a gear (11) is fixedly connected to the driving end of the servo motor (10), and the gear (11) and the rack (8) are meshingly connected.

2. A safety door for a controlled atmosphere fresh-keeping warehouse as claimed in claim 1, characterized in that: A fixed frame (12) is fixedly installed on the inner side of the wall (1), and a second gear (13) is rotatably connected inside the fixed frame (12). A moving plate (14) symmetrically distributed at the center is slidably engaged at the top of the inner wall of the fixed frame (12). A second rack (19) is fixedly connected to the opposite side of the moving plate (14). The second gear (13) and the second rack (19) are meshingly connected. A through groove (15) symmetrically distributed at the center is opened at the top of the fixed frame (12). The moving plate (14) is slidably engaged in the corresponding through groove (15). A clamping plate (20) is fixedly connected to the top of the moving plate (14), and a gas analyzer (21) is clamped and installed between the two clamping plates (20).

3. A safety door for a controlled atmosphere fresh-keeping warehouse as claimed in claim 2, characterized in that: A worm wheel (16) is fixedly connected to the outer side of the rotating shaft of the second gear (13) at the top end of the fixed frame (12), and a worm (17) is rotatably connected to the inner side of the fixed frame (12) close to the worm wheel (16). The worm wheel (16) and the worm (17) are meshingly connected, and one end of the rotating shaft of the worm (17) extends to the outer side of the fixed frame (12) and is fixedly connected to a knob (18).

4. A safety door for a controlled atmosphere fresh-keeping warehouse as claimed in claim 1, characterized in that: A PLC controller (22) is fixedly installed on the outer side of the wall (1) near the safety door body (4), and the servo motor (10) and the gas analyzer (21) are both electrically connected to the PLC controller (22).

5. The safety door of the atmosphere-controlled fresh-keeping warehouse according to claim 1, characterized in that: The safety door body (4) is provided with heat-insulating cotton inside.

6. A safety door for a controlled atmosphere fresh-keeping warehouse as claimed in claim 1, characterized in that: The length of the gear one (11) is greater than the width of the rack one (8).

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