A high-speed double-drum cold storage door with a sealed and heat-insulating structure and its heat-insulating method

Abstract

This invention relates to the field of high-speed cold storage doors, and discloses a double-roller high-speed cold storage door with a sealing and insulation structure and its insulation method. The door includes a roller frame, with a limit frame fixedly connected to one end. A top block is fixedly connected to the inner wall of the limit frame, a door frame is fixedly connected to the bottom of the top block, a base is fixedly connected to the bottom of the door frame, and a contact frame is fixedly connected to the bottom of the roller frame. When the roller door needs to be raised or lowered, a servo system retracts and lowers the roller door. A base is provided at the bottom of the door frame to improve the sealing between the roller door and the door frame. A sealing component is provided inside the door frame. When the gravity plate at the bottom of the roller door contacts the top of the base, the sealing component moves towards the surface of the roller door, thereby sealing the roller door and addressing the gap between the roller door and the door frame.

Description

Technical Field

[0001] This invention relates to the field of high-speed cold storage doors, specifically to a double-roller high-speed cold storage door with a sealing and insulation structure and its insulation method. Background Technology

[0002] High-speed doors are short for high-speed rolling doors. They have multiple functions such as heat preservation, windproofing, sound insulation, and fireproofing. They are widely used in air-conditioned workshops and clean rooms in various industries such as food, chemicals, textiles, and electronics. Currently, double-roller cold storage high-speed doors have added an auxiliary roller to better isolate and stabilize the soft door curtain during the opening and closing process.

[0003] High-speed doors require a door frame for operation. The door frame limits the movement of the high-speed door and reduces the probability of misalignment during lifting and lowering. Currently, when high-speed doors operate rapidly inside the door frame, a certain gap needs to be set between the high-speed door and the door frame. Otherwise, the resistance between the high-speed door and the door frame will increase, and cold air in the cold storage can easily leak through the gap in the door frame, resulting in a reduction in the sealing effect of the high-speed door. Summary of the Invention

[0004] The purpose of this invention is to provide a high-speed double-roller cold storage door with a sealed and heat-insulating structure and a heat-insulating method thereof, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a double-roller cold storage high-speed door with a sealed and heat-insulating structure and its heat-insulating method. The door includes a roller frame, a limit frame fixedly connected to one end of the roller frame, a top block fixedly connected to the inner wall of the limit frame, a door frame fixedly connected to the bottom of the top block, a base fixedly connected to the bottom of the door frame, a contact frame fixedly connected to the bottom of the roller frame, a servo system fixedly connected to the inner wall of the roller frame, a roller shutter door mounted on the surface of the servo system, a gravity plate fixedly connected to the bottom of the roller shutter door, and a slider fixedly connected to the end of the gravity plate. The invention also includes:

[0007] A sealing component, comprising a concave plate, the concave plate being fixedly connected to the inner wall of a gantry, a door frame being fixedly connected to the inner wall of the concave plate, an arc plate being fixedly connected to the top of the door frame, the top of the arc plate being fixedly connected to the bottom of a roller frame, and the bottom of the door frame being fixedly connected to the top of a base.

[0008] A reset component, comprising a drive rod, wherein a friction roller is fixedly connected to the surface of the drive rod, and the friction roller contacts the surface of the roller shutter door;

[0009] An extrusion component, the extrusion component including a groove, the groove being formed on the top of the base, a bottom hole plate being fixedly connected to the bottom of the inner wall of the groove, and a side hole frame being fixedly connected to the upper surface of the base.

[0010] Furthermore, the surface of the roller shutter door contacts the inner wall of the contact frame, the bottom of the roller shutter door extends to the outer end of the roller frame through the contact frame, the surface of the slider contacts the inner wall of the door frame, the surface of the gravity plate is adapted to the inner wall of the groove, and the side end of the roller shutter door extends into the interior of the door frame.

[0011] Furthermore, the sealing component includes a fixing frame, which is fixedly connected to the surface of the concave plate. A connecting frame is fixedly connected to the end of the fixing frame away from the concave plate. An elastic rod is fixedly connected to the end of the connecting frame away from the fixing frame. A circular groove sealing frame is fixedly connected to the end of the elastic rod away from the connecting frame. A pressing rod is fixedly connected to the surface of the circular groove sealing frame. An inclined plate is fixedly connected to the end of the pressing rod away from the circular groove sealing frame. A bracket is fixedly connected to the surface of the gantry.

[0012] An electric actuator is fixedly connected to the surface of the bracket, and a compression ball is fixedly connected to the telescopic end of the electric actuator.

[0013] Furthermore, the extrusion ball and the inclined panel correspond to each other, and both the extrusion ball and the inclined panel are located at one end of the door frame near the concave plate. The end of the circular groove sealing frame away from the extrusion rod is in contact with the surface of the roller shutter door.

[0014] Furthermore, the door frame is located at the end of the recessed plate away from the door frame, and the end of the door frame away from the recessed plate extends to the outer end of the recessed plate. The ends of the door frame and the circular groove sealing frame that are close to each other are in contact with each other, and the end of the inclined panel away from the extrusion rod is fixedly connected to a telescopic positioning rod.

[0015] Furthermore, the reset component includes a bent rod, which is fixedly connected to the end of the circular groove sealing frame. A cylindrical rod is rotatably connected to the end of the bent rod away from the circular groove sealing frame. Pulleys are fixedly connected to the surfaces of the cylindrical rod and the drive rod, and a belt is drivenly connected to the inner wall of the pulleys. A reset ring is fixedly connected to the surface of the cylindrical rod. An extension plate is fixedly connected to the surface of the reset ring. A reset spring is fixedly connected to the surface of the extension plate. A support plate is fixedly connected to the end of the reset spring away from the extension plate.

[0016] The end of the support plate away from the reset spring is fixedly connected to the surface of the circular groove sealing frame, the surface of the drive rod is rotatably connected to the inner wall of the circular groove sealing frame, and the support plate and the bent rod are fixedly connected by the bent rod.

[0017] Furthermore, the end of the friction roller near the circular groove sealing frame is located inside the circular groove sealing frame, the end of the drive rod passes through the circular groove sealing frame and extends to the outer end of the circular groove sealing frame, and the end of the friction roller away from the circular groove sealing frame contacts the surface of the roller shutter door.

[0018] Furthermore, the extrusion component includes a spring sheet, the bottom of which is fixedly connected to the bottom of the inner wall of the base, a lifting frame is fixedly connected to the top of the spring sheet, a round rod is fixedly connected to the top of the lifting frame, and a force-bearing plate is fixedly connected to the top of the round rod.

[0019] A sliding frame is fixedly connected to the end of the lifting frame, a central plate is fixedly connected to the upper surface of the sliding frame, and a pressure plate is fixedly connected to the end of the central plate away from the sliding frame.

[0020] Furthermore, the top of the lifting frame contacts the top of the inner wall of the base, the end of the sliding frame away from the lifting frame extends to the outer end of the base through the side hole frame, and the top of the round rod extends into the interior of the groove through the bottom hole plate.

[0021] Furthermore, the insulation method for the aforementioned double-roller cold storage high-speed door with a sealing and insulation structure includes the following steps:

[0022] S1: When the roller shutter door needs to be raised or lowered, the servo system rolls the roller shutter door up and down. A base is set at the bottom of the door frame to improve the sealing between the roller shutter door and the door frame.

[0023] S2: After the circular groove sealing frame comes into contact with the surface of the roller shutter door, the end of the circular groove sealing frame near the door frame comes into contact with the end of the door frame, thereby improving the sealing between the roller shutter door and the door frame using the circular groove sealing frame;

[0024] S3: The reset spring retracts using the squeezing force of the roller shutter door. When the reset spring resets, it pulls the friction roller to rotate via the drive rod. The friction roller then pulls the roller shutter door to move inward toward the door frame, allowing the roller shutter door to reset quickly.

[0025] S4: The sliding frame can deform when it moves downward. The pressure plate contacts the lower surface of the roller shutter door as the sliding frame moves downward, which improves the stability of the roller shutter door when it works inside the groove.

[0026] The present invention has the following beneficial effects:

[0027] When the roller shutter door needs to be raised or lowered, the present invention uses a servo system to retract and lower the roller shutter door. A base is provided at the bottom of the frame to improve the sealing between the roller shutter door and the frame. A sealing component is provided inside the frame. When the gravity plate at the bottom of the roller shutter door contacts the top of the base, the sealing component begins to move towards the surface of the roller shutter door, thereby sealing the roller shutter door and addressing the gap between the roller shutter door and the frame. A reset component is provided at the end of the sealing component near the roller shutter door. When the roller shutter door is impacted and deformed, the roller shutter door uses friction to pull the reset component to deform. At the same time, the reset component can pull the roller shutter door back to its original position by the force of the deformation. A pressing component is provided inside the base to press the lower surface of the roller shutter door, preventing misalignment between the bottom of the roller shutter door and the base, and improving the sealing effect between the roller shutter door and the frame.

[0028] This invention relates to a roller shutter door that uses a slider that slides on the inner wall of the door frame. The contact between the slider and the door frame improves the stability of the roller shutter door during lifting and lowering, preventing misalignment during operation. When the bottom of the roller shutter door contacts the top of the base, the electric push rod pushes the extrusion ball to move towards and contact the surface of the inclined panel. The inclined panel, through the extrusion rod, pushes the circular groove sealing frame towards and contacting the surface of the roller shutter door. After the circular groove sealing frame contacts the surface of the roller shutter door, the end of the circular groove sealing frame near the door frame contacts the end of the door frame, thereby improving the sealing between the roller shutter door and the door frame.

[0029] When the circular groove sealing frame of this invention comes into contact with the surface of the roller shutter, it compresses the roller shutter and causes it to deform. At this time, the friction roller will come into contact with the surface of the roller shutter. When the roller shutter is impacted and deformed, the end of the roller shutter will slide into the door frame. At the same time, when the roller shutter moves, it will pull the drive rod to rotate through the friction roller. The drive rod pulls the cylindrical rod to rotate through the belt. When the reset ring rotates, it will compress the reset spring and cause it to deform. The reset spring will contract using the squeezing force of the roller shutter. When the reset spring resets, it will pull the friction roller to rotate through the drive rod. The friction roller will then pull the roller shutter to move into the door frame, so that the roller shutter can quickly reset and improve the sealing effect of the roller shutter on the cold storage.

[0030] When the bottom of the gravity plate of this invention contacts the top of the force plate, the force plate pushes the lifting frame downward through the round rod, and the lifting frame pulls the center plate downward through the sliding frame. The sliding frame has a certain elasticity, so that the sliding frame can deform when it moves downward. The pressure plate contacts the lower surface of the roller shutter door as the sliding frame moves downward, which improves the stability of the roller shutter door when it works inside the groove and prevents the bottom of the roller shutter door from tilting inside the groove, causing cold air leakage inside the cold storage.

[0031] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the roller shutter door structure of the present invention;

[0035] Figure 3 This is a schematic cross-sectional view of the roller frame structure of the present invention;

[0036] Figure 4 This is a schematic diagram of the structure of the present invention;

[0037] Figure 5 This is a schematic diagram of the overall structure of the sealing component of the present invention;

[0038] Figure 6 For the present invention Figure 5 Enlarged diagram of part A in the diagram;

[0039] Figure 7 This is a schematic diagram of the overall structure of the reset component of the present invention;

[0040] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of part B in the diagram;

[0041] Figure 9 This is a schematic diagram of the overall structure of the extrusion component of the present invention;

[0042] Figure 10 This is a schematic diagram of the process structure of the present invention.

[0043] The attached diagram lists the components represented by each number as follows:

[0044] In the diagram: 1. Roller frame; 2. Top block; 3. Limiting frame; 4. Door frame; 5. Base; 6. Servo system; 7. Roller shutter door; 8. Contact frame; 9. Gravity plate; 10. Slider; 11. Sealing component; 12. Reset component; 13. Extrusion component; 20. Bracket; 21. Extrusion ball; 22. Extrusion rod; 23. Slanted panel; 24. Hole plate; 25. Electric actuator; 26. Arc plate; 27. Door frame; 28. Circular groove sealing frame; 29. ​​Elastic rod; 3 0. Connecting frame; 31. Fixing frame; 40. Drive rod; 41. Friction roller; 42. Bending rod; 43. Belt; 44. Reset ring; 45. Extension plate; 46. Cylindrical rod; 47. Reset spring; 48. Support plate; 49. Bending rod; 50. Pulley; 51. Groove; 52. Side hole frame; 53. Sliding frame; 54. Spring; 55. Bottom hole plate; 56. Round rod; 57. Lifting frame; 58. Center plate; 59. Force plate; 60. Pressure plate. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Please see Figures 1-10As shown, this invention relates to a double-roller cold storage high-speed door with a sealed and heat-insulating structure and its heat-insulating method. It includes a roller frame 1, with a limit frame 3 fixedly connected to the end of the roller frame 1. A top block 2 is fixedly connected to the inner wall of the limit frame 3, and a door frame 4 is fixedly connected to the bottom of the top block 2. A base 5 is fixedly connected to the bottom of the door frame 4, and a contact frame 8 is fixedly connected to the bottom of the roller frame 1. A servo system 6 is fixedly connected to the inner wall of the roller frame 1. When the roller shutter door 7 needs to be raised or lowered, the servo system 6 retracts and lowers the roller shutter door 7. The base 5 is provided at the bottom of the door frame 4 to improve the sealing between the roller shutter door 7 and the door frame 4. A sealing component 11 is provided inside the door frame 4. When the gravity plate 9 at the bottom of the roller shutter door 7 contacts the top of the base 5, the sealing component 11 begins to move towards the surface of the roller shutter door 7. The system moves, thereby using the sealing component 11 to seal the roller shutter door 7 and treat the gap between the roller shutter door 7 and the door frame 4. A reset component 12 is provided at one end of the sealing component 11 near the roller shutter door 7. When the roller shutter door 7 is impacted and deformed, the roller shutter door 7 uses friction to pull the reset component 12 to deform. At the same time, the reset component 12 can pull the roller shutter door 7 to reset through the force of deformation. A pressing component 13 is provided inside the base 5. The pressing component 13 can press the lower surface of the roller shutter door 7 to prevent misalignment between the bottom of the roller shutter door 7 and the base 5, and improve the sealing effect between the roller shutter door 7 and the door frame 4. The surface of the servo system 6 is provided with the roller shutter door 7. The bottom of the roller shutter door 7 is fixedly connected to a gravity plate 9. The end of the gravity plate 9 is fixedly connected to a slider 10. It also includes:

[0047] The sealing component 11 includes a concave plate 24, which is fixedly connected to the inner wall of the gantry 4. A door frame 27 is fixedly connected to the inner wall of the concave plate 24. An arc plate 26 is fixedly connected to the top of the door frame 27. The top of the arc plate 26 is fixedly connected to the bottom of the roller frame 1, and the bottom of the door frame 27 is fixedly connected to the top of the base 5.

[0048] Reset component 12 includes a drive rod 40, and a friction roller 41 is fixedly connected to the surface of the drive rod 40. The friction roller 41 is in contact with the surface of the roller shutter door 7.

[0049] The extrusion component 13 includes a groove 51, which is formed on the top of the base 5. A bottom hole plate 55 is fixedly connected to the bottom of the inner wall of the groove 51, and a side hole bracket 52 is fixedly connected to the upper surface of the base 5.

[0050] The surface of the roller shutter door 7 contacts the inner wall of the contact frame 8, the bottom of the roller shutter door 7 extends to the outer end of the roller frame 1 through the contact frame 8, the surface of the slider 10 contacts the inner wall of the door frame 27, the surface of the gravity plate 9 is adapted to the inner wall of the groove 51, and the side end of the roller shutter door 7 extends into the interior of the door frame 27.

[0051] The sealing component 11 includes a fixing frame 31, which is fixedly connected to the surface of the recessed plate 24. A connecting frame 30 is fixedly connected to one end of the fixing frame 31 away from the recessed plate 24, and an elastic rod 29 is fixedly connected to one end of the connecting frame 30 away from the fixing frame 31. A circular groove sealing frame 28 is fixedly connected to one end of the elastic rod 29 away from the connecting frame 30. The roller shutter door 7 of the present invention slides on the inner wall of the door frame 27 via a slider 10. The contact between the slider 10 and the door frame 27 improves the stability of the roller shutter door 7 during lifting and lowering, and avoids misalignment of the roller shutter door 7 during operation. When the bottom of the roller shutter door 7 contacts the top of the base 5, the electric push rod 25 pushes and squeezes. Ball 21 moves toward and contacts the surface of inclined panel 23. Inclined panel 23 pushes circular groove sealing frame 28 toward and contacts the surface of roller shutter door 7 via extrusion rod 22. After circular groove sealing frame 28 contacts the surface of roller shutter door 7, one end of circular groove sealing frame 28 near door frame 27 contacts the end of door frame 27, thereby improving the sealing between roller shutter door 7 and door frame 27. Extrusion rod 22 is fixedly connected to the surface of circular groove sealing frame 28. Inclined panel 23 is fixedly connected to one end of extrusion rod 22 away from circular groove sealing frame 28. Support 20 is fixedly connected to the surface of door frame 4.

[0052] An electric actuator 25 is fixedly connected to the surface of the bracket 20, and a compression ball 21 is fixedly connected to the telescopic end of the electric actuator 25.

[0053] The extrusion ball 21 corresponds to the inclined panel 23, and both the extrusion ball 21 and the inclined panel 23 are located at one end of the door frame 4 near the concave plate 24. The end of the circular groove sealing frame 28 away from the extrusion rod 22 is in contact with the surface of the roller shutter door 7.

[0054] The door frame 27 is located at the end of the recessed plate 24 away from the door frame 4. The end of the door frame 27 away from the recessed plate 24 extends to the outer end of the recessed plate 24. The ends of the door frame 27 and the circular groove sealing frame 28 that are close to each other are in contact with each other. The end of the inclined panel 23 away from the extrusion rod 22 is fixedly connected to a telescopic positioning rod.

[0055] The reset component 12 includes a bent rod 42, which is fixedly connected to the end of the circular groove sealing frame 28. A cylindrical rod 46 is rotatably connected to the end of the bent rod 42 away from the circular groove sealing frame 28. A pulley 50 is fixedly connected to the surface of the cylindrical rod 46 and the drive rod 40, respectively. A belt 43 is drivenly connected to the inner wall of the pulley 50. A reset ring 44 is fixedly connected to the surface of the cylindrical rod 46. When the circular groove sealing frame 28 of this invention comes into contact with the surface of the roller shutter 7, it will compress the roller shutter 7 and cause deformation. At this time, the friction roller 41 will come into contact with the surface of the roller shutter 7. When the roller shutter 7 is impacted and deformed, the end of the roller shutter 7 will slide into the door frame 27. At the same time, when the roller shutter 7 moves, it will pass through the friction roller 41. 1. Pull the drive rod 40 to rotate. The drive rod 40 pulls the cylindrical rod 46 to rotate through the belt 43. When the reset ring 44 rotates, it will squeeze the reset spring 47 to deform. The reset spring 47 will contract by the squeezing force of the roller shutter door 7. When the reset spring 47 resets, it will pull the friction roller 41 to rotate through the drive rod 40. The friction roller 41 will pull the roller shutter door 7 to move into the door frame 27, so that the roller shutter door 7 can be quickly reset and improve the sealing effect of the roller shutter door 7 on the cold storage. An extension plate 45 is fixedly connected to the surface of the reset ring 44. The reset spring 47 is fixedly connected to the surface of the extension plate 45. A support plate 48 is fixedly connected to the end of the reset spring 47 away from the extension plate 45.

[0056] The end of the support plate 48 away from the reset spring 47 is fixedly connected to the surface of the circular groove sealing frame 28, the surface of the drive rod 40 is rotatably connected to the inner wall of the circular groove sealing frame 28, and the support plate 48 and the bent rod 42 are fixedly connected by the bent rod 49.

[0057] The end of the friction roller 41 near the circular groove sealing frame 28 is located inside the circular groove sealing frame 28, the end of the drive rod 40 passes through the circular groove sealing frame 28 and extends to the outer end of the circular groove sealing frame 28, and the end of the friction roller 41 away from the circular groove sealing frame 28 contacts the surface of the roller shutter door 7.

[0058] The extrusion component 13 includes a spring sheet 54. The bottom of the spring sheet 54 is fixedly connected to the bottom of the inner wall of the base 5. The top of the spring sheet 54 is fixedly connected to a lifting frame 57. When the bottom of the gravity plate 9 contacts the top of the force plate 59, the force plate 59 pushes the lifting frame 57 downward through the round rod 56. The lifting frame 57 pulls the center plate 58 downward through the sliding frame 53. The sliding frame 53 has a certain elasticity, so that the sliding frame 53 can deform when it moves downward. The pressure plate 60 contacts the lower surface of the roller shutter door 7 as the sliding frame 53 moves downward, which improves the stability of the roller shutter door 7 when it works inside the groove 51 and prevents the bottom of the roller shutter door 7 from tilting inside the groove 51, causing cold air leakage inside the cold storage. The top of the lifting frame 57 is fixedly connected to a round rod 56, and the top of the round rod 56 is fixedly connected to a force plate 59.

[0059] A sliding frame 53 is fixedly connected to the end of the lifting frame 57. A center plate 58 is fixedly connected to the upper surface of the sliding frame 53. A pressure plate 60 is fixedly connected to the end of the center plate 58 away from the sliding frame 53.

[0060] The top of the lifting frame 57 contacts the top of the inner wall of the base 5, the end of the sliding frame 53 away from the lifting frame 57 extends to the outer end of the base 5 through the side hole frame 52, and the top of the round rod 56 extends into the interior of the groove 51 through the bottom hole plate 55.

[0061] A high-speed double-roller cold storage door with a sealed and insulated structure, the insulation method comprising the following steps:

[0062] S1: When it is necessary to raise or lower the roller shutter door 7, the roller shutter door 7 is rolled up and lowered by the operation of the servo system 6. A base 5 is provided at the bottom of the door frame 4 to improve the sealing between the roller shutter door 7 and the door frame 4.

[0063] S2: After the circular groove sealing bracket 28 comes into contact with the surface of the roller shutter door 7, one end of the circular groove sealing bracket 28 near the door frame 27 comes into contact with the end of the door frame 27, thereby improving the sealing between the roller shutter door 7 and the door frame 27 by using the circular groove sealing bracket 28.

[0064] S3: The reset spring 47 retracts using the squeezing force of the roller shutter 7. When the reset spring 47 resets, it pulls the friction roller 41 to rotate through the drive rod 40. The friction roller 41 then pulls the roller shutter 7 to move inward toward the door frame 27, so that the roller shutter 7 can be reset quickly.

[0065] S4: The sliding frame 53 can deform when it moves downward, and the pressure plate 60 contacts the lower surface of the roller shutter door 7 as the sliding frame 53 moves downward, which improves the stability of the roller shutter door 7 when it works inside the groove 51.

[0066] When the roller shutter door 7 needs to be raised or lowered during use, the servo system 6 operates to retract and lower the roller shutter door 7. A base 5 is provided at the bottom of the frame 4 to improve the sealing between the roller shutter door 7 and the frame 4. A sealing component 11 is provided inside the frame 4. When the gravity plate 9 at the bottom of the roller shutter door 7 contacts the top of the base 5, the sealing component 11 begins to move towards the surface of the roller shutter door 7, thereby sealing the roller shutter door 7 and addressing the gap between the roller shutter door 7 and the frame 4. A reset component 12 is provided at one end of the sealing component 11 near the roller shutter door 7. When the roller shutter door 7 is impacted and deformed, the roller shutter door 7 uses friction to pull the reset component 12 to deform. At the same time, the reset component 12 can... The deformation force pulls the roller shutter door 7 to reset. An extrusion component 13 is installed inside the base 5. This component 13 extrudes the lower surface of the roller shutter door 7, preventing misalignment between the bottom of the roller shutter door 7 and the base 5, thus improving the sealing effect between the roller shutter door 7 and the door frame 4. The roller shutter door 7 slides on the inner wall of the door frame 27 via a slider 10. The contact between the slider 10 and the door frame 27 improves the stability of the roller shutter door 7 during lifting and lowering, preventing misalignment during operation. When the bottom of the roller shutter door 7 contacts the top of the base 5, the electric push rod 25 pushes the extrusion ball 21 towards the surface of the inclined panel 23 and into contact with it. The inclined panel 23, through the extrusion rod 22, pushes the circular groove sealing frame 28 towards the surface of the roller shutter door 7. The roller shutter door 7 moves and moves against the surface of the roller shutter door 7. After the circular groove sealing frame 28 contacts the surface of the roller shutter door 7, the end of the circular groove sealing frame 28 near the door frame 27 contacts the end of the door frame 27, thereby improving the sealing between the roller shutter door 7 and the door frame 27. After the circular groove sealing frame 28 contacts the surface of the roller shutter door 7, it will squeeze the roller shutter door 7 to cause deformation. At this time, the friction roller 41 will contact the surface of the roller shutter door 7. When the roller shutter door 7 is impacted and deformed, the end of the roller shutter door 7 will slide into the interior of the door frame 27. At the same time, when the roller shutter door 7 moves, it will pull the drive rod 40 to rotate through the friction roller 41. The drive rod 40 pulls the cylindrical rod 46 to rotate through the belt 43. When the reset ring 44 rotates, it will squeeze the reset spring 47 to cause deformation. The retracting spring 47 utilizes the squeezing force of the roller shutter 7 to retract. When the resetting spring 47 resets, it pulls the friction roller 41 to rotate via the drive rod 40. The friction roller 41 then pulls the roller shutter 7 towards the interior of the door frame 27, allowing the roller shutter 7 to quickly reset and improving the sealing effect of the roller shutter 7 on the cold storage. When the bottom of the gravity plate 9 contacts the top of the force plate 59, the force plate 59 pushes the lifting frame 57 downward via the round rod 56. The lifting frame 57 pulls the center plate 58 downward via the sliding frame 53. The sliding frame 53 has a certain elasticity, allowing it to deform as it moves downward. The pressure plate 60 contacts the lower surface of the roller shutter 7 as the sliding frame 53 moves downward, improving the stability of the roller shutter 7 when working inside the groove 51.To prevent the bottom of the roller shutter door 7 from tilting inside the groove 51, which could cause cold air leakage inside the cold storage.

[0067] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A double-roller cold storage high-speed door with a sealed and heat-insulating structure, comprising a roller frame (1), wherein a limit frame (3) is fixedly connected to the end of the roller frame (1), a top block (2) is fixedly connected to the inner wall of the limit frame (3), a door frame (4) is fixedly connected to the bottom of the top block (2), a base (5) is fixedly connected to the bottom of the door frame (4), a contact frame (8) is fixedly connected to the bottom of the roller frame (1), a servo system (6) is fixedly connected to the inner wall of the roller frame (1), a roller shutter door (7) is provided on the surface of the servo system (6), a gravity plate (9) is fixedly connected to the bottom of the roller shutter door (7), and a slider (10) is fixedly connected to the end of the gravity plate (9), characterized in that, Also include: Sealing parts (11), the sealing parts (11) including a concave hole plate (24), the concave hole plate (24) is fixedly connected with the inner wall of door frame (4), the inner wall of the concave hole plate (24) is fixedly connected with door frame (27), the top of the door frame (27) is fixedly connected with arc plate (26), the top of the arc plate (26) is fixedly connected with the bottom of the drum frame (1), the bottom of the door frame (27) is fixedly connected with the top of the base (5); Reset part (12), the reset part (12) includes drive rod (40), the surface of the drive rod (40) is fixedly connected with friction roller (41), the friction roller (41) is in contact with the surface of the roller shutter door (7); Extrusion part (13), the extrusion part (13) includes groove (51), the groove (51) is set up in the top of the base (5), the inner wall bottom of the groove (51) is fixedly connected with bottom hole plate (55), the upper surface of the base (5) is fixedly connected with side hole frame (52); The sealing parts (11) include fixed frame (31), the fixed frame (31) is fixedly connected with the surface of the concave hole plate (24), one end of the fixed frame (31) away from the concave hole plate (24) is fixedly connected with connecting frame (30), one end of the connecting frame (30) away from the fixed frame (31) is fixedly connected with elastic rod (29), one end of the elastic rod (29) away from the connecting frame (30) is fixedly connected with round groove sealing frame (28), the surface of the round groove sealing frame (28) is fixedly connected with extrusion rod (22), one end of the extrusion rod (22) away from the round groove sealing frame (28) is fixedly connected with inclined plane plate (23), the surface of the door frame (4) is fixedly connected with support (20); The surface of the support (20) is fixedly connected with electric push rod (25), the telescopic end of the electric push rod (25) is fixedly connected with extrusion ball (21); The extrusion ball (21) and the inclined plane plate (23) correspond to each other, and the extrusion ball (21) and the inclined plane plate (23) are arranged at one end of the door frame (4) close to the concave hole plate (24), one end of the round groove sealing frame (28) away from the extrusion rod (22) is in contact with the surface of the roller shutter door (7); The door frame (27) is arranged at one end of the concave hole plate (24) away from the door frame (4), one end of the door frame (27) away from the concave hole plate (24) extends to the outer end of the concave hole plate (24), the door frame (27) and the end close to each other of the round groove sealing frame (28) correspond to each other, one end of the inclined plane plate (23) away from the extrusion rod (22) is fixedly connected with telescopic positioning rod.

2. The double drum cold storage quick door with sealing and heat preservation structure according to claim 1, characterized in that: The surface of the roller shutter door (7) is in contact with the inner wall of the contact frame (8), the bottom of the roller shutter door (7) extends to the outer end of the drum frame (1) through the contact frame (8), the surface of the sliding block (10) is in contact with the inner wall of the door frame (27), the surface of the gravity plate (9) is matched with the inner wall of the groove (51), and the side end of the roller shutter door (7) extends to the inside of the door frame (27).

3. The double drum cold storage quick door with sealing and heat preservation structure according to claim 2, characterized in that: The reset component (12) includes a bent rod (42), the end of the bent rod (42) is fixedly connected with the end of the round groove sealing frame (28), the end of the bent rod (42) away from the round groove sealing frame (28) is rotatably connected with a cylindrical rod (46), the surface of the cylindrical rod (46) and the surface of the driving rod (40) are fixedly connected with a belt pulley (50) respectively, the inner wall of the belt pulley (50) is drivingly connected with a belt (43), the surface of the cylindrical rod (46) is fixedly connected with a reset ring (44), the surface of the reset ring (44) is fixedly connected with an extension plate (45), the surface of the extension plate (45) is fixedly connected with a reset spring piece (47), the end of the reset spring piece (47) away from the extension plate (45) is fixedly connected with a support plate (48); The end of the support plate (48) away from the reset spring piece (47) is fixedly connected with the surface of the round groove sealing frame (28), the surface of the driving rod (40) is rotatably connected with the inner wall of the round groove sealing frame (28), the support plate (48) is fixedly connected with the bent rod (42) through the bent rod (49).

4. The double drum cold storage quick door with sealing and heat preservation structure according to claim 3, characterized in that: The end of the friction roller (41) close to the round groove sealing frame (28) is arranged in the inside of the round groove sealing frame (28), the end of the driving rod (40) penetrates through the round groove sealing frame (28) and extends to the outer end of the round groove sealing frame (28), the end of the friction roller (41) away from the round groove sealing frame (28) is in contact with the surface of the roller shutter door (7).

5. The double drum cold storage quick door with sealing and heat preservation structure according to claim 4, characterized in that: The extrusion component (13) includes a spring piece (54), the bottom of the spring piece (54) is fixedly connected with the bottom of the inner wall of the base (5), the top of the spring piece (54) is fixedly connected with a lifting frame (57), the top of the lifting frame (57) is fixedly connected with a cylindrical rod (56), the top of the cylindrical rod (56) is fixedly connected with a stress plate (59); The end of the lifting frame (57) is fixedly connected with a sliding frame (53), the upper surface of the sliding frame (53) is fixedly connected with a center plate (58), the end of the center plate (58) away from the sliding frame (53) is fixedly connected with a pressure plate (60).

6. The double drum cold storage quick door with sealing and heat preservation structure according to claim 5, characterized in that: The top of the lifting frame (57) is in contact with the top of the inner wall of the base (5), the end of the sliding frame (53) away from the lifting frame (57) extends to the outer end of the base (5) through the side hole frame (52), the top of the cylindrical rod (56) extends to the inside of the groove (51) through the bottom hole plate (55).

7. A method for insulating a quick door of a twin drum cold storage having a sealed insulation structure, which is suitable for the quick door of the twin drum cold storage having the sealed insulation structure according to claim 6, wherein, The heat preservation method comprises the following steps: S1: when the operation of lifting the roller shutter door (7) is needed, the roller shutter door (7) is wound and lowered through the work of the servo system (6), the bottom of the door frame (4) is provided with the base (5), and the sealing property between the roller shutter door (7) and the door frame (4) is improved; S2: after the round groove sealing frame (28) is in contact with the surface of the roller shutter door (7), the end of the round groove sealing frame (28) close to the door frame (27) is in contact with the end of the door frame (27), so that the sealing property between the roller shutter door (7) and the door frame (27) is improved by the round groove sealing frame (28); S3: the reset spring (47) uses the extrusion degree of the roller shutter (7) to shrink, when the reset spring (47) resets, the friction roller (41) is pulled to rotate through the driving rod (40), the friction roller (41) will pull the roller shutter (7) to move to the inside of the door frame (27), so that the roller shutter (7) can quickly reset; S4: the sliding frame (53) can be deformed when moving down, the pressure plate (60) contacts the lower surface of the roller shutter (7) with the downward movement of the sliding frame (53), improving the stability of the roller shutter (7) when working in the groove (51).

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