Sliding type heat preservation fast door
By using a sliding design and guide rails, the problem of positional deviation of the frozen hard door curtain of the cold storage insulation quick door was solved, achieving accurate control and space saving, simplifying the structure, and improving operational stability and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖南省优泰门业有限公司
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-22
Smart Images
Figure CN224266467U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cold storage door technology, and in particular to a sliding insulated high-speed door. Background Technology
[0002] Cold storage insulated high-speed doors are industrial doors specifically designed for cold chain logistics, food processing, pharmaceutical warehousing, and other locations with strict temperature control requirements. They combine two core functions: rapid opening and closing and efficient insulation. This ensures stable internal temperature while enabling efficient access for goods, reducing energy consumption and improving operational efficiency.
[0003] In existing technologies, cold storage insulated high-speed doors typically employ a roller shutter structure. This structure connects the door curtain to a roller, with a motor driving the roller to rotate, thus achieving the rolling up (opening) and unrolling (closing) of the door curtain. However, during operation, the travel of the door curtain is controlled by an encoder on the motor. The encoder controls the curtain's stopping position by calculating the number of motor rotations. When the door curtain freezes at low temperatures, its physical form changes, becoming harder and less flexible. This change directly affects the size and shape of the curtain when rolling up and unrolling. When a frozen curtain rolls up, due to its increased hardness, it may occupy more space or form a different curling shape than when it is not frozen. This dimensional difference causes a deviation between the encoder reading and the actual position of the curtain, resulting in the curtain excessively descending when closing or excessively rising when opening. Summary of the Invention
[0004] This application provides a sliding insulated high-speed door, including a door frame, a door curtain, a drive device, and a sliding track. Each of the two uprights of the door frame is provided with a sliding track at its upper end. The drive device is installed on the sliding track, and the door curtain is connected to the drive device.
[0005] The sliding track includes a guide track and an extension track. One end of the guide track is connected to the upright of the door frame, and the other end of the guide track is connected to the extension track.
[0006] The driving device includes a synchronous shaft, a drive motor, and drive gears. The synchronous shaft is rotatably connected between the guide rails of the two sliding rails. One end of the synchronous shaft is connected to the drive motor. Two drive gears are coaxially arranged on the synchronous shaft, and the tooth grooves of the two drive gears are respectively located in the guide rails of the two sliding rails.
[0007] The opposite sides of the curtain are located within the guide track. Each opposite side of the curtain is provided with a number of protruding teeth. The number of protruding teeth are distributed at intervals along the length of the curtain. All of the number of protruding teeth can mesh with the tooth groove of the drive gear. The top of the curtain is provided with a guide wheel, which is located within the extended track.
[0008] In one possible implementation, the sliding insulated high-speed door provided in this application embodiment has an "L"-shaped guide rail, with the other end of the "L"-shaped guide rail perpendicular to the door frame column, and the extension rail being horizontally arranged.
[0009] In one possible implementation, the sliding insulated high-speed door provided in this application embodiment has an "S"-shaped guide rail, with the other end of the "S"-shaped guide rail parallel to the upright of the door frame, and the extended rail is vertically arranged.
[0010] In one possible implementation, the sliding insulated high-speed door provided in this application embodiment has a tooth composed of a ball bolt and a ball nut; one end of the ball bolt has a hemispherical protrusion, and the other end of the ball bolt has a stud; one end of the ball nut has a hemispherical protrusion, and the other end of the ball nut has a threaded hole; the stud of the ball bolt passes through the door curtain from one side of the door curtain and connects to the threaded hole of the ball nut located on the other side of the door curtain.
[0011] Beneficial effects: By driving the synchronous shaft to rotate through the drive motor and the drive gears located at both ends of the synchronous shaft, the rotation of the drive gears will drive the convex teeth on both sides of the curtain to move. For every fixed angle of rotation, the curtain moves a distance between the convex teeth, and the curtain moves the same distance accordingly. This allows for precise control of the curtain's movement distance, preventing the curtain from falling excessively when closed or rising excessively when opened due to changes in the size and shape of the curtain.
[0012] Furthermore, in existing technologies, the rollers and rolled-up curtains occupy a significant amount of space at the top of the high-speed door. However, the sliding insulated high-speed door of this application allows the curtain to be laid flat on top of the insulated high-speed door along the extended track during curtain storage, thereby reducing space occupancy.
[0013] At the same time, because the way the door curtain is stored and driven has been changed, there is no need to equip it with rollers, counterweights, etc., which also simplifies the structure of the heat-insulating high-speed door. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of a sliding insulated high-speed door (horizontal).
[0016] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0017] Figure 3 This is a schematic diagram of a guide rail (L-shaped);
[0018] Figure 4 This is a diagram of a door curtain;
[0019] Figure 5 This is a schematic diagram of a sliding insulated high-speed door (vertical);
[0020] Figure 6 This is a schematic diagram of a guide rail (S-shaped);
[0021] Figure 7 This is a schematic diagram of a toothed tooth.
[0022] Explanation of reference numerals in the attached figures
[0023] 10-Door frame;
[0024] 11-Column;
[0025] 20-Door curtain;
[0026] 30 - Drive unit;
[0027] 31 - Synchronous shaft;
[0028] 32 - Drive motor;
[0029] 33-Drive gear;
[0030] 40 - Sliding track;
[0031] 41-Guide rail;
[0032] 42-Extended track;
[0033] 50 - Guide wheel;
[0034] 60-convex teeth;
[0035] 61-Spherical bolt;
[0036] 62-Spherical convex nut. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0038] Figure 1 This is a schematic diagram of a sliding insulated high-speed door (horizontal). Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of a guide rail (L-shaped); Figure 4 This is a diagram of a door curtain; Figure 5 This is a schematic diagram of a sliding insulated high-speed door (vertical); Figure 6 This is a schematic diagram of a guide rail (S-shaped); Figure 7 This is a schematic diagram of a toothed tooth.
[0039] See Figures 1 to 7 As shown, this application embodiment provides a sliding heat-insulating high-speed door, including a door frame 10, a door curtain 20, a drive device 30 and a sliding track 40. Each of the two uprights 11 of the door frame 10 is provided with a sliding track 40 at its upper end. The drive device 30 is installed on the sliding track 40, and the door curtain 20 is connected to the drive device 30.
[0040] The sliding track 40 includes a guide track 41 and an extension track 42. One end of the guide track 41 is connected to the column 11 of the door frame 10, and the other end of the guide track 41 is connected to the extension track 42.
[0041] The drive device 30 includes a synchronous shaft 31, a drive motor 32, and drive gears 33. The synchronous shaft 31 is rotatably connected between the guide rails 41 of the two sliding rails 40. One end of the synchronous shaft 31 is connected to the drive motor 32. Two drive gears 33 are coaxially arranged on the synchronous shaft 31, and the tooth grooves of the two drive gears 33 are respectively located in the guide rails 41 of the two sliding rails 40.
[0042] The opposite sides of the curtain 20 are located within the guide rail 41. Each of the opposite sides of the curtain 20 is provided with several protruding teeth 60. The protruding teeth 60 are distributed at intervals along the length of the curtain 20. All of the protruding teeth 60 can mesh with the tooth groove of the drive gear 33. The top of the curtain 20 is provided with a guide wheel 50, which is located within the extension rail 42.
[0043] In use, the drive motor 32 drives the synchronous shaft 31 to rotate and the drive gears 33 located at both ends of the synchronous shaft 31 to rotate. When the drive gears 33 rotate, they will drive the convex teeth 60 on both sides of the curtain 20 to move. For each fixed angle of rotation, the curtain 20 moves a distance between the convex teeth 60, and the curtain 20 also moves the same distance accordingly. In this way, the moving distance of the curtain 20 can be accurately controlled, and the curtain 20 will not be excessively lowered when closed or excessively raised when opened due to changes in the size and shape of the curtain 20.
[0044] Furthermore, in the prior art, the rollers and the rolled-up curtain 20 occupy a significant amount of space at the top of the high-speed door. However, the sliding insulated high-speed door of this application embodiment allows the curtain 20 to be laid flat on top of the insulated high-speed door along the extension track 42 when it is being stored, thereby reducing space occupation.
[0045] At the same time, because the storage and driving methods of the curtain 20 have been changed, there is no need to equip it with rollers, counterweights, etc., which also simplifies the structure of the heat-insulating high-speed door.
[0046] Among them, the sliding heat-insulating high-speed door curtain 20 has two storage directions: one is to store the curtain 20 horizontally at the top of the high-speed door, and the other is to store the curtain 20 vertically upward at the top of the high-speed door.
[0047] See Figure 1 and Figure 3 As shown, in the horizontal storage of the door curtain 20, the guide track 41 is L-shaped, and the other end of the L-shaped guide track 41 is perpendicular to the upright 11 of the door frame 10, while the extended track 42 is set horizontally.
[0048] See Figure 5 and Figure 6 As shown, in the vertical storage of the curtain 20, the guide track 41 is S-shaped, and the other end of the S-shaped guide track 41 is parallel to the column 11 of the door frame 10, and the extended track 42 is set vertically.
[0049] In the above embodiment, the protruding tooth 60 on the curtain 20 is composed of a ball bolt 61 and a ball nut 62; one end of the ball bolt 61 has a hemispherical protrusion, and the other end of the ball bolt 61 has a stud; one end of the ball nut 62 has a hemispherical protrusion, and the other end of the ball nut 62 has a threaded hole; the stud of the ball bolt 61 passes through the curtain 20 from one side of the curtain 20 and connects to the threaded hole of the ball nut 62 located on the other side of the curtain 20.
[0050] In the description of the embodiments of this application, it should be understood that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. The terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "multiple" means two or more, unless otherwise precisely specified.
[0051] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. For example, they can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A sliding insulated high-speed door, characterized in that, The device includes a door frame, a door curtain, a drive unit, and a sliding track. Each of the two uprights of the door frame is provided with a sliding track. The drive unit is installed on the sliding track, and the door curtain is connected to the drive unit. The sliding track includes a guide track and an extension track. One end of the guide track is connected to the upright of the door frame, and the other end of the guide track is connected to the extension track. The driving device includes a synchronous shaft, a drive motor, and drive gears. The synchronous shaft is rotatably connected between the guide rails of the two sliding rails. One end of the synchronous shaft is connected to the drive motor. Two drive gears are coaxially arranged on the synchronous shaft, and the tooth grooves of the two drive gears are respectively located in the guide rails of the two sliding rails. The opposite sides of the curtain are located within the guide track. Each opposite side of the curtain is provided with a number of protruding teeth. The number of protruding teeth are distributed at intervals along the length of the curtain. All of the number of protruding teeth can mesh with the tooth groove of the drive gear. The top of the curtain is provided with a guide wheel, which is located within the extended track.
2. The sliding insulated high-speed door according to claim 1, characterized in that, The guide rail is L-shaped, with the other end of the L-shaped guide rail perpendicular to the door frame post, and the extension rail is horizontally positioned.
3. The sliding insulated high-speed door according to claim 1, characterized in that, The guide rail is S-shaped, with the other end of the S-shaped guide rail parallel to the column of the door frame, and the extended rail is vertically arranged.
4. The sliding insulated high-speed door according to claim 1, characterized in that, The convex tooth consists of a ball bolt and a ball nut; one end of the ball bolt has a hemispherical protrusion, and the other end of the ball bolt has a stud; one end of the ball nut has a hemispherical protrusion, and the other end of the ball nut has a threaded hole; the stud of the ball bolt passes through the curtain from one side of the curtain and connects to the threaded hole of the ball nut located on the other side of the curtain.