Anti-air-leakage PVC heat preservation roller shutter door

Abstract

The utility model discloses an air leakage prevention PVC (polyvinyl chloride) heat preservation roller shutter door, which comprises a door frame. A sealing structure is arranged at the joint of the edge of the roller shutter door body and the door frame, a connecting block is hinged to the side edge of the sealing structure, the other end of the connecting block is hinged to the door frame, a blocking piece is fixed to the lower end of the sealing structure, and a reset spring is connected between the sealing structure and the door frame. When the sealing structure moves downwards, the sealing structure is close to one side of the door frame, the joint of the edge of the roller shutter door body and the door frame is sealed in an attached mode, the problems of sealing failure and cold air leakage caused by abrasion of a sealing strip at the joint of the roller shutter door body and a door plate rail are solved, and the service life of parts is prolonged. Cold air loss is reduced, energy consumption of the refrigeration house is reduced, and cooling efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rolling shutter doors, and more specifically relates to an air leakage-proof PVC thermal insulation rolling shutter door. Background Art

[0002] At present, rolling shutter doors, also known as fast doors, are made of multi-jointed movable door panels connected in series. In a fixed slide, the doors rotate up and down with the reel above the door as the center. Rolling shutter doors play the same role as walls in horizontal partitions. They are composed of curtain plates, seat plates, guide rails, supports, reels, boxes, control boxes, rolling door machines, etc.

[0003] For cold storage that needs to store items at low temperatures, cold storage rolling shutter doors are needed to achieve fast door opening and closing, thereby reducing the number of door opening and closing times, improving the door opening and closing efficiency, and reducing the contact between indoor and outdoor air, thereby minimizing the loss rate of cold air in the cold storage, which can achieve energy-saving effects;

[0004] The existing technical solution has the following defects: the rolling shutter door body and the door panel tracks on both sides of the door frame are slidably connected. Due to the sliding friction contact, the sealing strip at the connection between the rolling shutter door body and the door panel track will wear out after long-term operation, causing seal failure and cold air leakage. The cold air will be lost from the connection between each door body and the track. This will increase the energy consumption of the cold storage over a long period of time and reduce the cooling efficiency. Utility Model Content

[0005] In order to solve the defects existing in the above-mentioned technology, the utility model provides an air leakage-proof PVC thermal insulation rolling shutter door, which aims to improve the problem of sealing failure caused by wear of the sealing strip at the connection between the rolling shutter door body and the door panel track.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] An air leakage-proof PVC thermal insulation rolling shutter door, comprising a door frame;

[0008] A rolling door body is installed in the door frame, and a sealing structure is provided at the junction of the edge of the rolling door body and the door frame. A connecting block is hinged on the side of the sealing structure, and the other end of the connecting block is hinged to the door frame. A baffle is fixed to the lower end of the sealing structure, and one end of the baffle extends to directly below the rolling door body. A reset spring is connected between the sealing structure and the door frame.

[0009] In one embodiment of the present invention, the door frame comprises

[0010] A door panel track fixedly connected to the wall, wherein two door panel tracks are provided, the two door panel tracks are arranged in parallel and symmetrically, and groove slideways are provided on opposite surfaces of the two door panel tracks;

[0011] A rolling shutter shaft is arranged at the upper end of the door panel track, the upper end of the rolling shutter door body is connected to the rolling shutter shaft, and the rolling shutter shaft is arranged between the two door panel tracks;

[0012] A roller motor is used to drive the roller blind shaft to rotate.

[0013] In one embodiment of the utility model, a roller box is fixed to the upper end of the door panel track, a lighting lamp is installed on the outer wall of the roller box, the roller shaft is rotatably installed in the roller box, the roller motor is fixedly connected to the roller box, and the driving shaft of the roller motor is transmission-connected to one end of the roller shaft.

[0014] In an embodiment of the utility model, an infrared sensor is fixed to the outer wall of the lower end of the door panel track, a lubricating oil injection hole is opened on the door panel track, and a plug is provided at the lubricating oil injection hole port.

[0015] In one embodiment of the utility model, an electric control box for controlling the forward and reverse rotation of the reel motor is installed on one side of the door frame, and a plurality of connecting blocks are arranged in parallel along the length direction of the sealing structure.

[0016] In one embodiment of the utility model, the rolling door body comprises

[0017] A plurality of heat-insulating door panels connected end to end, the ends of the heat-insulating door panels extending into the groove slideway, two adjacent heat-insulating door panels butted against each other via hinges, and the heat-insulating door panels filled with heat-insulating materials;

[0018] A guide plate is arranged at the bottom of the lowermost insulation door panel, and guide wheels are respectively installed at both ends of the guide plate, and the guide wheels are slidably engaged in the door panel track;

[0019] A sealing plastic strip is clamped on the lower end of the guide plate, a dovetail groove is provided on the lower end surface of the guide plate, the upper end of the sealing plastic strip is detachably clamped in the dovetail groove, and the cross section of the sealing plastic strip is a circular rubber ring.

[0020] In one embodiment of the present invention, the sealing structure comprises

[0021] A vertical plate arranged parallel to the door panel track, the baffle is fixed to the lower end of the vertical plate, and the return spring is connected to the upper end of the vertical plate;

[0022] A sealing strip fixed on the surface of the vertical plate is detachably attached to the surface of the vertical plate, and the sealing strip is correspondingly arranged at a gap where the thermal insulation door panel and the door panel track are connected.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] (1) The air leakage-proof PVC thermal insulation rolling shutter door provided by the utility model has one end of the baffle extending to the bottom of the rolling shutter door body. When the rolling shutter door body is controlled to be closed, the rolling shutter door body presses down the baffle during the downward movement, so that the baffle drives the sealing structure to move downward. The side of the sealing structure is hinged to the door frame through a connecting block. When the sealing structure moves downward, it moves closer to the door frame to achieve a seal at the joint between the edge of the rolling shutter door body and the door frame, thereby solving the problem of wear of the sealing strip at the joint between the rolling shutter door body and the door panel track, causing seal failure and cold air leakage. In addition, by adding a sealing structure, the original sealing strip can be replaced, reducing the sliding friction between the rolling shutter door body and the door panel track, further reducing component wear and extending the service life of components; reducing cold air loss, reducing energy consumption of cold storage, and improving cooling efficiency;

[0025] (2) In the present invention, when the rolling door body is in an open state, since the baffle is not affected by external force, the reset spring connected between the sealing structure and the door frame pulls the sealing structure to move up and reset. While the sealing structure moves up, it shifts outward and away from the connection between the edge of the rolling door body and the door frame. Since the baffle is installed at the lower end of the sealing structure, it is above the ground and close to the ground. Therefore, the sealing structure fits the connection between the edge of the rolling door body and the door frame when the rolling door body is about to be closed, and moves away from the connection between the edge of the rolling door body and the door frame when the rolling door body is about to be opened. This reduces the friction contact between the rolling door body and the sealing structure during the up and down movement, thereby extending the service life of the sealing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the air leakage-proof PVC thermal insulation rolling shutter door in the embodiment of the utility model;

[0027] Figure 2 In the embodiment of the utility model Figure 1 Schematic diagram of the three-dimensional structure at A in the middle;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the back side of the air leakage-proof PVC thermal insulation rolling shutter door in the embodiment of the utility model;

[0029] Figure 4 This is a three-dimensional structural schematic diagram of the sealing structure in the embodiment of the utility model;

[0030] Figure 5 This is a schematic diagram of a top view of the structure in an embodiment of the utility model;

[0031] Figure 6 In the embodiment of the utility model Figure 5 Schematic diagram of the structure at point B in the middle.

[0032] In the figure: 100, door frame; 101, door panel track; 103, rolling shutter shaft; 105, roller motor; 107, roller box; 108, infrared sensor; 109, lubricating oil injection hole; 130, rolling shutter door body; 131, thermal insulation door panel; 133, guide plate; 135, sealing plastic strip; 150, sealing structure; 151, connecting block; 153, baffle; 155, reset spring; 156, slider; 158, vertical plate; 159, sealing strip. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments.

[0034] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] In the examples, unless otherwise specified, all the means used are conventional means in the art.

[0036] See also Figure 1-Figure 6 , the present application provides an air leakage-proof PVC thermal insulation rolling door, comprising a door frame 100;

[0037] A rolling door body 130 is installed in the door frame 100, and a sealing structure 150 is provided at the junction of the edge of the rolling door body 130 and the door frame 100. A connecting block 151 is hinged on the side of the sealing structure 150, and the other end of the connecting block 151 is hinged to the door frame 100. A baffle 153 is fixed to the lower end of the sealing structure 150, and one end of the baffle 153 extends to the bottom of the rolling door body 130. A return spring 155 is connected between the sealing structure 150 and the door frame 100;

[0038] Since one end of the blocking piece 153 extends to the bottom of the rolling door body 130, when the rolling door body 130 is controlled to be closed, the blocking piece 153 is pressed down during the downward movement of the rolling door body 130, so that the blocking piece 153 drives the sealing structure 150 to move downward, and the side of the sealing structure 150 is hinged to the door frame 100 through the connecting block 151. When the sealing structure 150 moves downward, it moves closer to the door frame 100 to achieve a seal at the joint between the edge of the rolling door body 130 and the door frame 100, thereby solving the problem of wear of the sealing strip at the joint between the rolling door body 130 and the door panel track 101, causing seal failure and cold air leakage. In addition, by adding the sealing structure 150, the original sealing strip can be replaced, thereby reducing the sliding friction between the rolling door body 130 and the door panel track 101, further reducing component wear and extending the service life of components; reducing cold air loss, reducing energy consumption of the cold storage, and improving cooling efficiency;

[0039] When the rolling door body 130 is in an open state, at this time, since the baffle 153 is not affected by external force, the reset spring 155 connected between the sealing structure 150 and the door frame 100 pulls the sealing structure 150 to move up and reset. While the sealing structure 150 moves up, it deviates outward, away from the connection between the edge of the rolling door body 130 and the door frame 100. Since the baffle 153 is installed at the lower end of the sealing structure 150, no more than 10 cm from the ground, the sealing structure 150 is close to the connection between the edge of the rolling door body 130 and the door frame 100 when the rolling door body 130 is about to be closed, and is away from the connection between the edge of the rolling door body 130 and the door frame 100 when the rolling door body 130 is just about to be opened, thereby reducing the friction contact between the rolling door body 130 and the sealing structure 150 during the up and down movement, thereby extending the service life of the sealing structure 150.

[0040] Specifically, since the height of the baffle 153 from the ground is between 5 cm and 20 cm, the actual use height is adjusted according to the thickness of the sealing structure 150 used.

[0041] In one embodiment of the present invention, the door frame 100 includes

[0042] A door panel track 101 fixedly connected to the wall, wherein two door panel tracks 101 are provided, the two door panel tracks 101 are arranged in parallel and symmetrically, and groove slideways are provided on opposite surfaces of the two door panel tracks 101;

[0043] A rolling shutter shaft 103 is arranged at the upper end of the door panel track 101, the upper end of the rolling shutter door body 130 is connected to the rolling shutter shaft 103, and the rolling shutter shaft 103 is arranged between the two door panel tracks 101;

[0044] A roller motor 105 is used for driving the roller blind shaft 103 to rotate.

[0045] In one embodiment of the utility model, a roller box 107 is fixed to the upper end of the door panel track 101, a lighting lamp is installed on the outer wall of the roller box 107, the roller shaft 103 is rotatably installed in the roller box 107, the roller motor 105 is fixedly connected to the roller box 107, and the driving shaft of the roller motor 105 is transmission-connected to one end of the roller shaft 103.

[0046] In one embodiment of the utility model, an infrared sensor 108 is fixed to the outer wall of the lower end of the door panel track 101, a lubricating oil injection hole 109 is opened on the door panel track 101, and a plug is provided at the port of the lubricating oil injection hole 109; the rolling door body 130 and the door panel tracks 101 on both sides of the door frame 100 are slidingly connected, and the sliding friction contact consumes a lot of energy; by providing the lubricating oil injection hole 109, the ball bearings at the connection between the rolling door body and the door panel track are lubricated to reduce the rolling friction of the rolling door body 130.

[0047] In an embodiment of the present invention, an electric control box for controlling the forward and reverse rotation of the reel motor 105 is installed on one side of the door frame 100 , and a plurality of connecting blocks 151 are arranged in parallel along the length direction of the sealing structure 150 .

[0048] In one embodiment of the present invention, the rolling door body 130 includes

[0049] A plurality of heat-insulating door panels 131 connected end to end, the ends of the heat-insulating door panels 131 extending into the groove slideway, two adjacent heat-insulating door panels 131 butted against each other via hinges, and the heat-insulating door panels 131 filled with heat-insulating materials;

[0050] A guide plate 133 is provided at the bottom of the thermal insulation door panel 131 at the lowest end, and guide wheels are respectively installed at both ends of the guide plate 133, and the guide wheels are slidably engaged in the door panel track 101;

[0051] The sealing plastic strip 135 is clamped on the lower end of the guide plate 133 . A dovetail groove is provided on the lower end surface of the guide plate 133 . The upper end of the sealing plastic strip 135 is detachably clamped in the dovetail groove. The cross section of the sealing plastic strip 135 is a circular rubber ring.

[0052] In one embodiment of the present invention, the sealing structure 150 includes

[0053] A vertical plate 158 is arranged parallel to the door panel track 101, the baffle 153 is fixed to the lower end of the vertical plate 158, and the return spring 155 is connected to the upper end of the vertical plate 158;

[0054] A sealing strip 159 is fixed on the surface of the vertical plate 158 , and the sealing strip 159 is detachably attached to the surface of the vertical plate 158 . The sealing strip 159 is correspondingly arranged at the gap where the thermal insulation door panel 131 and the door panel track 101 are connected.

[0055] See also Figure 4-Figure 6, the lower end of the door panel track 101 is slidably connected with a slider 156, and the slider 156 is provided with a through slide groove, and one end of the blocking piece 153 is slidably inserted in the through slide groove; when the rolling door body 130 presses down the blocking piece 153, the blocking piece 153 will slide to one side of the door frame 100, resulting in friction between the blocking piece 153 and the lower end of the rolling door body 130. In the long run, the sealing strip 159 at the bottom of the rolling door body 130 will be damaged. In order to reduce friction and extend the service life, a slider 156 is added so that the lower end of the rolling door body 130 directly contacts the slider 156, and the blocking piece 153 is driven downward while the slider 156 is pressed down, so that the blocking piece 153 and the slider 156 slide.

[0056] A travel switch is installed in the sealing plastic strip 135, and the travel switch is a normally closed touch switch; a microprocessor is fixedly installed on the outer wall of the reel box 107, and the normally closed touch switch is connected to the microprocessor electrical signal; the reel motor 105 is a tubular motor and is electrically connected to the microprocessor.

[0057] The above-mentioned embodiments only express several implementation methods of the utility model. The descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent.

[0058] It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and these are all within the scope of protection of the utility model. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A leak-proof PVC thermal insulation rolling door, characterized in that: comprising a door frame (100); A rolling door body (130) is installed in the door frame (100); a sealing structure (150) is provided at the junction of the edge of the rolling door body (130) and the door frame (100); a connecting block (151) is hinged on the side of the sealing structure (150); the other end of the connecting block (151) is hinged to the door frame (100); a baffle (153) is fixed at the lower end of the sealing structure (150); one end of the baffle (153) extends to the bottom of the rolling door body (130); and a return spring (155) is connected between the sealing structure (150) and the door frame (100).

2. The air leakage-proof PVC thermal insulation rolling shutter door according to claim 1, characterized in that: The door frame (100) comprises A door panel track (101) fixedly connected to the wall, wherein two door panel tracks (101) are provided, the two door panel tracks (101) are arranged in parallel and symmetrically, and groove slideways are provided on opposite surfaces of the two door panel tracks (101); A rolling curtain shaft (103) is arranged at the upper end of the door panel track (101), the upper end of the rolling curtain door body (130) is connected to the rolling curtain shaft (103), and the rolling curtain shaft (103) is arranged between the two door panel tracks (101); A roller motor (105) is used for driving the roller blind shaft (103) to rotate.

3. The air leakage-proof PVC thermal insulation rolling shutter door according to claim 2, characterized in that: A reel box (107) is fixed to the upper end of the door panel track (101), an illuminating lamp is installed on the outer wall of the reel box (107), the shutter shaft (103) is rotatably installed in the reel box (107), the reel motor (105) is fixedly connected to the reel box (107), and the driving shaft of the reel motor (105) is drivingly connected to one end of the shutter shaft (103).

4. The air leakage-proof PVC thermal insulation rolling shutter door according to claim 2, characterized in that: An infrared sensor (108) is fixed to the outer wall of the lower end of the door panel track (101), a lubricating oil injection hole (109) is opened on the door panel track (101), and a plug is provided at the port of the lubricating oil injection hole (109).

5. The air leakage-proof PVC thermal insulation rolling shutter door according to claim 2, characterized in that: An electric control box for controlling the forward and reverse rotation of the reel motor (105) is installed on one side of the door frame (100), and a plurality of connecting blocks (151) are arranged in parallel along the length direction of the sealing structure (150).

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