A flat opening cold storage door with anti-collision function

Abstract

The present invention discloses a flat-hung cold storage door with an anti-collision function, comprising a door leaf and a door frame, a driving assembly and a guide rail being arranged at the top of the door frame, a rotating hanging wheel assembly being arranged between the door leaf and the guide rail, the rotating hanging wheel assembly being used to suspend the door leaf and make the door leaf slide along the guide rail; the guide rail comprises an upper guide rail, a lower guide rail and an arc-shaped guide rail located between the upper guide rail and the lower guide rail, the chain surrounds the upper guide rail and the lower guide rail; the rotating hanging wheel assembly comprises a rotating hanging wheel, the rotating hanging wheel is drum-shaped, the rotating hanging wheel is arranged in the arc-shaped guide rail, the rotating hanging wheel can rotate around the central axis of the arc-shaped guide rail and can slide along the axial direction of the arc-shaped guide rail. The present invention arranges a semi-enclosed rotating hanging wheel structure at the top of the door leaf, the rotating hanging wheel structure can not only run smoothly in the guide rail, but also when the door leaf is hit, the rotating hanging wheel structure can rotate in the guide rail without falling out of the guide rail.

Description

Technical Field

[0001] The present invention relates to the technical field of swing doors, and particularly to a swing cold storage door with an anti-collision function. Background Art

[0002] A cold storage door refers to a door installed in cold storage equipment, freezing warehouses and other freezing environment equipment to play a role in heat preservation and sealing. There are mainly sliding doors, lifting doors, hinge doors, etc. At present, the commonly used cold storage door is a steel swing cold storage door, that is, a sliding door, which has good heat preservation performance and is suitable for most cold storages. For a swing cold storage door, a track matching with the door leaf and a motor for driving the door leaf to swing along the track are arranged on the crossbeam of the door frame, so as to realize the opening and closing of the cold storage door. However, this swing cold storage door has poor anti-collision performance. When the door leaf is impacted, it is easy to get out of the track, resulting in the failure of the cold storage door, which requires time for maintenance and affects the preservation quality of the items in the cold storage. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a swing cold storage door with an anti-collision function. A semi-surrounding rotating hanging wheel structure is arranged at the top of the door leaf. This rotating hanging wheel structure can not only run smoothly in the guide rail, but also rotate in the guide rail when the door leaf is impacted and will not get out of the guide rail.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A swing cold storage door with an anti-collision function includes a door leaf and a door frame. A driving component and a guide rail are arranged at the top of the door frame. The guide rail is inclined upward along the opening direction. A rotating hanging wheel component is arranged between the door leaf and the guide rail. The rotating hanging wheel component is used for hanging the door leaf and enabling the door leaf to slide along the guide rail;

[0006] The driving component includes a driving motor, a driving sprocket, a driven sprocket and a chain surrounding the driving sprocket and the driven sprocket. The driving motor is arranged on one side of the guide rail. The driving sprocket and the driven sprocket are respectively arranged at both ends of the guide rail. The output shaft of the driving motor is connected to the rotating shaft of the driving sprocket;

[0007] The guide rail includes an upper guide rail, a lower guide rail and an arc-shaped guide rail located between the upper guide rail and the lower guide rail. The chain surrounds the upper guide rail and the lower guide rail;

[0008] The rotating hanging wheel component includes a rotating hanging wheel. The rotating hanging wheel is drum-shaped. The rotating hanging wheel is arranged in the arc-shaped guide rail. The rotating hanging wheel can rotate around the central axis of the arc-shaped guide rail and can slide along the axial direction of the arc-shaped guide rail.

[0009] Furthermore, the rotary hanging wheel assembly further includes a first connecting plate and a second connecting plate. One end of the first connecting plate is fixedly connected to the rotary hanging wheel, and the other end of the first connecting plate is fixedly connected to the top of the door leaf. The second connecting plate is arranged inside the first connecting plate and perpendicular to the first connecting plate. One end of the second connecting plate is hinged to the first connecting plate, and a tension spring is arranged between the second connecting plate and the first connecting plate above the second connecting plate. The other end of the second connecting plate is connected to the chain.

[0010] Furthermore, a connecting block is arranged on the chain inside the lower guide rail. Card slots are arranged on both the connecting block and the second connecting plate. The connecting block and the second connecting plate are buckled with each other through two card slots, and the second connecting plate is located at the bottom of the connecting block.

[0011] Furthermore, a steel wire rope is arranged between the top of the door leaf and one end of the second connecting plate close to the connecting block.

[0012] Furthermore, two sets of rotary hanging wheel assemblies are arranged. The two sets of rotary hanging wheel assemblies are respectively located at both ends of the door leaf. Two connecting blocks are arranged. The distance between the two connecting blocks is the same as the distance between the two sets of rotary hanging wheel assemblies.

[0013] Furthermore, pulley groups are arranged on both sides of the connecting block. Each pulley group includes at least one pulley, and the pulley slides along the lower guide rail.

[0014] Furthermore, the rotation angle of the rotary hanging wheel in the arc-shaped guide rail is 0 to 30°.

[0015] Furthermore, the door leaf includes a PVC curtain layer, a foamed polyurethane layer and a skeleton. Two layers of PVC curtain layers are arranged. The skeleton is arranged between the two layers of PVC curtain layers, and the foamed polyurethane layer is filled between the two layers of PVC curtain layers.

[0016] Furthermore, two sealing rubber strips are arranged on the outer side of the door frame. A gap is arranged between the two sealing rubber strips to form an air flow channel. The sealing rubber strips surround the top and the left and right sides of the door frame. Fans are respectively arranged at the upper left corner and the upper right corner of the sealing rubber strip. The blowing direction of the fan faces one side of the sealing rubber strip and blows air into the air flow channel between the two sealing rubber strips.

[0017] The beneficial effects of the present invention are:

[0018] (1) The door leaf of the flat-hung cold storage door provided by the present invention is connected to the guide rail at the top of the door leaf through a rotating hanging wheel assembly, and the rotating hanging wheel assembly includes a rotating hanging wheel, which is drum-shaped and can rotate around the central axis of the guide rail and can slide along the axial direction of the guide rail, so that the rotating hanging wheel can not only run smoothly in the guide rail and drive the door leaf to run along the guide rail at the same time, but also when the door leaf is hit, the rotating hanging wheel can rotate in the guide rail without falling off the guide rail, so that the impact bearing angle of the door leaf can reach 32°;

[0019] (2) The door leaf and door frame of the swing cold storage door provided by the present invention are sealed by a sealing strip, and high-air-volume fans are respectively arranged at the upper left corner and the upper right corner of the sealing strip. The blowing direction of the fan is toward the side of the sealing strip. When the door leaf is in the open state, the sealing strip is in a naturally released state without a cavity. At this time, the fan does not work. When the door leaf is closed, the door leaf squeezes the sealing strip to form a plurality of cavities inside the sealing strip. The air blown out by the fan fills the cavity, effectively isolating the temperature difference between the inside and the outside, thereby improving the sealing of the cold storage door. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to clearly illustrate the embodiments of the present invention 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0022] Figure 2 This is the state diagram of the door leaf when it is hit;

[0023] Figure 3 yes Figure 2 Side view of

[0024] Figure 4 It is a structural schematic diagram of the rotating hanging wheel assembly and the guide rail;

[0025] Figure 5 It is a schematic diagram of the structure of the connection block;

[0026] Figure 6 yes Figure 1 A magnified view of the structure at center;

[0027] Figure 7 yes Figure 6 Sectional view at DD in the middle;

[0028] Figure 8 yes Figure 1 Sectional view at the middle BB;

[0029] Figure 9 yes Figure 8 A magnified view of the structure at C;

[0030] Figure 10 It is a cross-sectional view of the door leaf.

[0031] Markings in the figure: 1. Door leaf; 2. Door frame; 3. Drive assembly; 31. Drive motor; 32. Driving sprocket; 33. Driven sprocket; 34. Chain; 35. Pulley; 4. Guide rail; 41. Upper guide rail; 42. Lower guide rail; 43. Arc guide rail; 5. Rotating hanging wheel assembly; 51. Rotating hanging wheel; 52. First connecting plate; 53. Second connecting plate; 54. Articulated seat; 55. Tension spring; 56. Slot; 6. Connecting block; 7. Wire rope; 8. Sealing strip; 81. Air flow channel; 82. Strip connecting part; 83. Sheet rubber strip; 9. Fan; 10. Strip base; 11. Pressing base; 12. Pressing wheel; 13. Pressing block; 14. PVC curtain layer; 15. Foamed polyurethane layer. DETAILED DESCRIPTION

[0032] The present invention provides a flat opening cold storage door with an anti-collision function. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below. 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.

[0033] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "top", "bottom", "up", "down", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] The present invention is described in detail below in conjunction with the accompanying drawings:

[0035] Example 1

[0036] Reference Figures 1-5 The present embodiment provides a swing cold storage door with an anti-collision function, comprising a door leaf 1 and a door frame 2, a driving assembly 3 and a guide rail 4 are arranged on the top of the door frame 2, the guide rail 4 is arranged upwardly inclined along the door opening direction, and a rotating hanging wheel assembly 5 is arranged between the door leaf 1 and the guide rail 4, the rotating hanging wheel assembly is used to suspend the door leaf 1 and make the door leaf 1 slide along the guide rail 4.

[0037] Specifically, the above-mentioned driving assembly 3 includes a driving motor 31, a driving sprocket 32, a driven sprocket 33 and a chain 34 surrounding the driving sprocket and the driven sprocket. The driving motor 31 is arranged on one side of the guide rail 4. The driving sprocket 32 and the driven sprocket 33 are respectively arranged at both ends of the guide rail 4. The output shaft of the driving motor 31 is connected to the rotating shaft of the driving sprocket 32.

[0038] The above-mentioned guide rail 4 includes an upper guide rail 41, a lower guide rail 42 and an arc-shaped guide rail 43 located between the upper guide rail and the lower guide rail. The upper guide rail 41 and the lower guide rail 42 are rectangular guide rails. The cross-section of the arc-shaped guide rail 43 is 3 / 4 circle. The chain 34 surrounds the upper guide rail 41 and the lower guide rail 42.

[0039] Two sets of the above-mentioned rotating pulley assemblies 5 are provided. The two sets of rotating pulley assemblies 5 are respectively located at both ends of the door leaf. Each set includes a rotating pulley 51, a first connecting plate 52 and a second connecting plate 53, and the rotating pulley 51 is drum-shaped. Among them, the above-mentioned rotating pulley 51 is arranged in the arc-shaped guide rail 43. The rotating pulley can rotate around the central axis of the arc-shaped guide rail and can slide along the axial direction of the arc-shaped guide rail. The rotation angle of the rotating pulley in the arc-shaped guide rail is 0 to 32°. One end of the above-mentioned first connecting plate 52 is fixedly connected to the rotating pulley 51, and the other end of the first connecting plate 52 is fixedly connected to the support plate at the top of the door leaf 1. The second connecting plate 53 is hingedly arranged inside the first connecting plate 52. Specifically, a hinge seat 54 perpendicular to the first connecting plate 52 is arranged inside the first connecting plate 52. One end of the second connecting plate 53 is hinged to the first connecting plate through a rotating shaft and the hinge seat. A tension spring 55 is also arranged between the upper part of the second connecting plate 53 and the first connecting plate 52. The other end of the second connecting plate 53 is connected to the chain.

[0040] Two connecting blocks 6 are fixedly arranged at the bottom of the chain in the lower guide rail 42. The distance between the two connecting blocks 6 is the same as the distance between the two sets of rotating pulley assemblies 5. Claw slots 56 are arranged on both the connecting block 6 and the second connecting plate 53. The connecting block 6 and the second connecting plate 53 are buckled with each other through the two claw slots, and the second connecting plate 53 is located at the bottom of the connecting block 6.

[0041] In addition, a steel wire rope 7 is also arranged between the top of the above-mentioned door leaf 1 and one end of the second connecting plate 53 close to the connecting block. A locking bolt is arranged at one end of the steel wire rope 7 connected to the second connecting plate 53, which is convenient for fixing the end of the steel wire rope. A manual pulling rope is also connected to the locking bolt. When a power failure occurs, the second connecting block can be rotated obliquely downward around the hinge seat by pulling the manual pulling rope, so that the door leaf is separated from the chain, and the door leaf can be pushed open manually.

[0042] Pulley blocks are provided on both sides of the connecting block 6, that is, pulley blocks are provided on both sides of the chain 34, and each pulley block includes at least one pulley 35, which slides along the lower guide rail 42, and the cross-section of the lower guide rail 42 is dumbbell-shaped, which cooperates with the pulleys 35 on both sides of the chain to ensure that the chain does not deviate or disengage during operation.

[0043] The present embodiment provides a swing cold storage door with an anti-collision function. When the door leaf is not hit, the second connecting plate is made perpendicular to the first connecting plate under the action of the tension spring, and the slots of the second connecting plate and the connecting block are engaged with each other. When the door leaf is opened or closed, the driving motor drives the sprocket to rotate, thereby driving the chain to move, and then drives the rotating hanging wheel at the top of the door leaf to run along the guide rail through the connecting block connected to the chain, that is, drives the door leaf to run along the guide rail to open or close the door leaf; when the door leaf is hit, the door leaf and the rotating hanging wheel at the top of the door leaf rotate outward, and at the same time drive the second connecting plate to rotate obliquely downward around the hinge seat, so that the second connecting plate is separated from the connecting block, to avoid deformation of the chain or disengagement of the chain when the door leaf is hit, and the rotating hanging wheel at the top of the door leaf will not fall off the track.

[0044] Example 2

[0045] Refer to 6 and Figure 7 The present embodiment provides a flat opening cold storage door with an anti-collision function, and also has an enhanced sealing structure, specifically:

[0046] In this embodiment, two sealing strips 8 are arranged on the outer side of the door frame 2, and a gap is arranged between the two sealing strips 8. The sealing strips 8 surround the top and left and right sides of the door frame 2. Fans 9 are respectively arranged at the upper left corner and the upper right corner of the sealing strips 8. The blowing direction of the fan 9 is toward one side of the sealing strip 8, and the fan 9 blows air into the gap between the two sealing strips 8, that is, the gap between the two sealing strips forms an air flow channel 81.

[0047] Specifically, fan fixing seats are respectively provided at the upper left corner and the upper right corner of the door frame 2, and the fan 9 is arranged in the fan fixing seats; a strip base 10 is provided on the outside of the door frame 2, and the strip base 10 surrounds the top and the left and right sides of the door frame 2, one end of the sealing strip 8 is arranged in the strip base 10, and the fan fixing seat is connected with the strip base 10 at the upper left corner and the upper right corner of the door frame 1 through a cavity, and the fan 9 blows air into the strip base 10 through the cavity, and then blows it into the air flow channel between the two sealing strips.

[0048] The strip base 10 is in a "concave" shape and includes two strip fixing grooves. The two sealing strips 8 are respectively inserted into the two strip fixing grooves of the strip base 10. When the sealing strip reaches the end of its service life or is severely worn, the sealing strip can be directly replaced without disassembling the sealing strip fixing seat, which is convenient for replacement. Moreover, an air circulation groove is formed between the two strip fixing grooves of the strip base. The air circulation grooves on the strip base 10 located at the upper left corner and the upper right corner of the door frame 2 are connected to the cavity between the fan fixing seat and the strip base 10, and the air circulation groove is connected to the air flow channel between the two sealing strips. The fan blows air into the strip base through the cavity, and then blows air into the air flow channel between the two sealing strips through the air circulation grooves on the strip base.

[0049] One side of the sealing rubber strip 8 is provided with a rubber strip connecting portion 82 that matches the rubber strip fixing groove, and the other side is provided with two parallel sheet-like rubber strips 83 .

[0050] In addition, refer to Figure 8 and Figure 9 The bottom of the swing cold storage door provided in this embodiment is also provided with a clamping assembly for fitting the door leaf 1 with the sealing strip 8. The clamping assembly is provided in two groups, and the two groups of the clamping assembly are respectively located at the lower left corner and the lower right corner of the door leaf 1, and the clamping assembly is located on the outside of the door leaf 1. The above-mentioned clamping assemblies all include a clamping base 11, a clamping wheel 12 and a clamping block 13. The clamping base 11 is fixed on the ground, and the clamping wheel 12 is arranged on the side of the clamping base 11 close to the door leaf 1. The clamping block 13 is fixedly arranged at the lower left corner and the lower right corner of the door leaf 1, and one end of the clamping block 13 is wedge-shaped. By providing the above-mentioned clamping assembly, when the door leaf is closed in place, the clamping wheel can compress the clamping block, so that the door leaf and the sealing strip fit tightly, and a cavity is formed between the door leaf and the sealing strip.

[0051] The present embodiment provides a swing cold storage door with an anti-collision function, in which high-air-volume fans are respectively arranged at the upper left and upper right corners of the sealing strip. When the door leaf is in an open state, the sealing strip is in a naturally released state without a cavity, and the fan does not work at this time; when the door leaf is closed, the door leaf squeezes the sealing strip so that the sheet-like strips at the ends of the two sealing strips are squeezed, and a plurality of sealed cavities can be formed. At the same time, the air blown out by the fan is blown into the air circulation groove of the strip base through the cavity, and the air circulation groove is connected with the air flow channel formed between the two sealing strips, so that after the door leaf squeezes the sealing strip, the air fills the cavity between the two sealing strips, thereby improving the sealing of the door leaf and effectively isolating the temperature difference between the inside and the outside.

[0052] Example 3

[0053] Reference Figure 10The present embodiment provides a swing cold storage door with an anti-collision function, wherein the door leaf includes a PVC curtain layer 14, a foamed polyurethane layer 15 and a frame. The PVC curtain layer 14 is provided with two layers, the frame is provided between the two layers of PVC curtain layers, and the foamed polyurethane layer 15 is filled between the two layers of PVC curtain layers 14.

[0054] It should be noted that some parts not described in the present invention can be implemented by adopting or drawing on existing technologies.

[0055] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A flat opening cold storage door with anti-collision function, characterized in that: It includes a door leaf and a door frame. A driving component and a guide rail are provided at the top of the door frame. The guide rail is inclined upward along the door opening direction. A rotating hanging wheel component is provided between the door leaf and the guide rail. The rotating hanging wheel component is used to hang the door leaf and enable the door leaf to slide along the guide rail. The driving component includes a driving motor, a driving sprocket, a driven sprocket and a chain surrounding the driving sprocket and the driven sprocket. The driving motor is arranged on one side of the guide rail. The driving sprocket and the driven sprocket are respectively arranged at both ends of the guide rail. The output shaft of the driving motor is connected to the rotating shaft of the driving sprocket. The guide rail includes an upper guide rail, a lower guide rail and an arc-shaped guide rail located between the upper guide rail and the lower guide rail. The chain surrounds the upper guide rail and the lower guide rail. The rotating hanging wheel component includes a rotating hanging wheel. The rotating hanging wheel is drum-shaped. The rotating hanging wheel is arranged in the arc-shaped guide rail. The rotating hanging wheel can rotate around the central axis of the arc-shaped guide rail and can slide along the axial direction of the arc-shaped guide rail. The rotating hanging wheel component further includes a first connecting plate and a second connecting plate. One end of the first connecting plate is fixedly connected to the rotating hanging wheel, and the other end of the first connecting plate is fixedly connected to the top of the door leaf. The second connecting plate is arranged inside the first connecting plate and is perpendicular to the first connecting plate. One end of the second connecting plate is hinged to the first connecting plate, and a tension spring is arranged between the upper part of the second connecting plate and the first connecting plate. The other end of the second connecting plate is connected to the chain. A connecting block is arranged on the chain in the lower guide rail. Card slots are arranged on both the connecting block and the second connecting plate. The connecting block and the second connecting plate are buckled with each other through two card slots, and the second connecting plate is located at the bottom of the connecting block. A steel wire rope is arranged between the top of the door leaf and one end of the second connecting plate close to the connecting block. Two sets of rotating hanging wheel components are provided. The two sets of rotating hanging wheel components are respectively located at both ends of the door leaf. Two connecting blocks are provided. The distance between the two connecting blocks is the same as the distance between the two sets of rotating hanging wheel components. Pulley groups are arranged on both sides of the connecting block. Each pulley group includes at least one pulley. The pulley slides along the lower guide rail.

2. The flat opening cold storage door with anti-collision function according to claim 1 is characterized in that: The rotation angle of the rotating hanging wheel in the arc-shaped guide rail is 0 to 32°.

3. The flat opening cold storage door with anti-collision function according to claim 1 is characterized in that: The door leaf includes a PVC curtain layer, a foamed polyurethane layer and a skeleton. Two layers of PVC curtain layers are provided. The skeleton is arranged between the two layers of PVC curtain layers. The foamed polyurethane layer is filled between the two layers of PVC curtain layers.

4. A side-hung cold storage door with anti-collision function according to claim 1, characterized in that, Two sealing rubber strips are arranged outside the door frame. A gap is arranged between the two sealing rubber strips to form an air flow channel. The sealing rubber strips surround the top and the left and right sides of the door frame. Fans are respectively arranged at the upper left corner and the upper right corner of the sealing rubber strips. The blowing direction of the fans faces one side of the sealing rubber strips and blows air into the air flow channel between the two sealing rubber strips.

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