Double-curtain heat preservation roller shutter door

Abstract

The utility model provides a double-curtain heat preservation roller shutter door. The double-curtain heat preservation roller shutter door comprises a door frame, heat preservation door curtains and quick door curtains. The door frame comprises two stand columns arranged in the horizontal direction in a spaced mode, and the heat preservation door curtain and the rapid door curtain are arranged between the two stand columns. The top end of the stand column is provided with a driving device connected with the heat preservation door curtain and the rapid door curtain. The heat preservation door curtain comprises a heat preservation inner container layer and outer protection layers, and the heat preservation inner container layer is arranged between the two outer protection layers. The double-curtain heat preservation roller shutter door has excellent heat preservation performance and sealing performance, high-position efficient heat preservation can be provided, and heat transfer is blocked. The double-curtain heat preservation roller shutter door integrates double curtains, and is small in occupied area and convenient to use. The failure rate is low, and later maintenance is very convenient. A heavy sliding door of a cold storage door is replaced by a heat preservation door curtain. Compared with a door body made of a metal material, the heat preservation door curtain is not prone to freezing. In addition, the heat preservation door curtain is light in weight, and people in the refrigeration house can escape by manually lifting and opening the heat preservation door curtain. Moreover, the heat preservation door curtain can be damaged by manpower, and even if the heat preservation door curtain cannot be opened, people can escape by damaging the heat preservation door curtain.

Description

Technical Field

[0001] The present application relates to the technical field of cold storage doors, and in particular to a double-curtain thermal insulation rolling shutter door. Background Art

[0002] Cold storage doors are doors installed in cold storage equipment, freezer rooms and other freezing environment equipment to insulate and seal. The main function of these doors is to maintain the low temperature environment in the cold storage and prevent the temperature in the cold storage from rising, so as to ensure that the items stored in the cold storage can maintain a constant low temperature state.

[0003] The sliding door of the cold storage door is a common cold storage door. It is opened and closed in a sliding manner and is suitable for large cold storage. This type of door usually uses stainless steel to make the door frame and door body to ensure the strength and durability of the door. The door body is filled with insulation materials such as polyurethane to enhance the thermal insulation performance of the door. For cold chain logistics, since logistics vehicles need to frequently enter and exit the cold storage, a quick-lifting door will be installed outside the cold storage door to adapt to the rapid opening and closing of the cold storage. For example, the Chinese utility model patent with the authorization announcement number CN219160746U proposes a two-in-one cold storage door, which combines the sliding door of the cold storage door with the quick-lifting door. While meeting the rapid opening and closing of the cold storage, it can also reduce the space occupied by the cold storage door in the cold storage.

[0004] However, most cold storage sliding doors use metal door frames and metal edging. Metal materials have good thermal conductivity, so the joints between the door and the door frame are easily frozen due to ice. Once the cold storage door is frozen, it will be difficult to open the cold storage door. In addition, the door is thick and solid. If someone is trapped in the cold storage, they cannot escape by destroying or opening the cold storage door. Utility Model Content

[0005] The embodiment of the present application provides a double-curtain thermal insulation rolling shutter door, comprising a door frame, a thermal insulation door curtain and a fast door curtain;

[0006] The door frame includes two columns that are spaced apart in the horizontal direction, and the thermal insulation door curtain and the fast door curtain are both arranged between the two columns;

[0007] The top of the column is provided with a driving device connected with the thermal insulation door curtain and the fast door curtain;

[0008] The thermal insulation door curtain comprises a thermal insulation inner layer and an outer protective layer, wherein the thermal insulation inner layer is arranged between two outer protective layers.

[0009] The double-curtain thermal insulation rolling shutter door provided in the embodiment of the present application uses a thermal insulation door curtain to replace the heavy cold storage door sliding door. Compared with a metal door body, the thermal insulation door curtain is not easy to freeze. Moreover, the thermal insulation door curtain is light in weight, and the personnel in the cold storage can escape by manually lifting and opening the thermal insulation door curtain. Furthermore, the thermal insulation door curtain can be destroyed by human power, and even if the thermal insulation door curtain cannot be opened, it can be destroyed to escape.

[0010] In one possible implementation manner, in the double-curtain thermal insulation rolling shutter door provided in the embodiment of the present application, the upright column includes a track, and the side end of the thermal insulation door curtain is slidably disposed in a guide groove of the track.

[0011] In one possible implementation, the double-curtain thermal insulation rolling shutter door provided in the embodiment of the present application has two cavities in the track, the cavities extend along the length direction of the track, heating wires are provided in the cavities, and the thermal insulation door curtain is located between the two cavities.

[0012] In one possible implementation manner, in the double-curtain thermal insulation rolling shutter door provided in the embodiment of the present application, the two cavities are symmetrically distributed on opposite sides of the guide groove, and the cavities are close to the notch of the guide groove.

[0013] In one possible implementation manner, in the double-curtain thermal insulation rolling shutter door provided in the embodiment of the present application, a door curtain seal is provided in the guide groove, and the door curtain seal extends along the length direction of the track;

[0014] The opposite ends of the door curtain seal are respectively connected to the inner walls of the guide groove on the opposite sides, and the side end of the door curtain seal has a receiving groove, and the side end of the heat-insulating door curtain is located in the receiving groove.

[0015] In one possible embodiment, the double-curtain insulated rolling shutter door provided in the embodiment of the present application, the column includes a sliding rail, the fast door curtain is slid in a sliding groove of the sliding rail, two track sealing strips are symmetrically provided on opposite sides of the groove of the sliding groove, and the ends of the two track sealing strips are respectively placed on opposite sides of the fast door curtain.

[0016] In one possible implementation manner, the double-curtain thermal insulation rolling shutter door provided in the embodiment of the present application further includes a door opening sealing module, and the door opening sealing module is provided between the thermal insulation door curtain and the fast door curtain;

[0017] The door opening sealing module includes two vertical sealing strips and a horizontal partition strip, the two vertical sealing strips are respectively arranged at the side ends of two columns; the horizontal partition strip is arranged at the top end of the vertical sealing strips, and the two ends of the horizontal partition strip are respectively connected to the two columns.

[0018] In one possible embodiment, the double-curtain insulated rolling shutter door provided in the embodiment of the present application, the vertical sealing strip includes a sponge sealing bracket, a sealing sponge strip and a sealing rubber skin, the sealing sponge strip is embedded in the installation groove of the sponge sealing bracket, the sealing rubber skin is wrapped on the outside of the sealing sponge strip, and the opposite ends of the sealing rubber skin are connected to the sponge sealing bracket.

[0019] In one possible implementation manner, in the double-curtain thermal insulation rolling shutter door provided in the embodiment of the present application, the door opening sealing module is provided on a side of the thermal insulation door curtain away from the fast door curtain.

[0020] In one possible implementation manner, in the double-curtain thermal insulation rolling shutter door provided in the embodiment of the present application, the material of the thermal insulation inner layer is a flexible thermal insulation material.

[0021] Beneficial effects: The double-curtain insulated rolling shutter door provided in the embodiment of the present application has excellent thermal insulation and sealing properties, can provide high-level and efficient thermal insulation, and block heat transfer. The double-curtain insulated rolling shutter door integrates double curtains, occupies a small area and is easy to use. The failure rate is low, and later maintenance is also very convenient. The thermal insulation door curtain is used to replace the heavy cold storage door sliding door. Compared with the door body made of metal material, the thermal insulation door curtain is not easy to freeze. Moreover, the thermal insulation door curtain is light in weight, and the personnel in the cold storage can escape by manually lifting and opening the thermal insulation door curtain. Furthermore, the thermal insulation door curtain can be destroyed by manpower, and even if the thermal insulation door curtain cannot be opened, it can be destroyed to escape. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 This is a schematic diagram of the structure of the double curtain thermal insulation rolling shutter door provided in the embodiment of the present application. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the double curtain thermal insulation rolling shutter door provided in the embodiment of the present application. Figure 2 ;

[0025] Figure 3 It is a bottom schematic diagram of a double-curtain thermal insulation rolling shutter door provided in an embodiment of the present application;

[0026] Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle;

[0027] Figure 5 It is a schematic side view of a double-curtain thermal insulation rolling shutter door provided in an embodiment of the present application;

[0028] Figure 6 yes Figure 5 A magnified schematic diagram of point B in the middle.

[0029] Description of Reference Numerals

[0030] 100-door frame;

[0031] 10- pillar;

[0032] 11- Track;

[0033] 11a-guide groove;

[0034] 11b-cavity;

[0035] 12-slide rail;

[0036] 12a - cavity;

[0037] 13-door curtain seal;

[0038] 14- Track sealing strip;

[0039] 20-Thermal insulation door curtain;

[0040] 30-Fast door curtain;

[0041] 40- driving device;

[0042] 50-heating wire;

[0043] 60-door opening sealing module;

[0044] 61-vertical sealing strip;

[0045] 611-sponge sealing bracket;

[0046] 612-sealing sponge strip;

[0047] 613-sealing rubber skin;

[0048] 62-Horizontal partition strip. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0050] Figure 1 This is a schematic diagram of the structure of the double curtain thermal insulation rolling shutter door provided in the embodiment of the present application. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the double curtain thermal insulation rolling shutter door provided in the embodiment of the present application. Figure 2 ; Figure 3 It is a bottom schematic diagram of a double-curtain thermal insulation rolling shutter door provided in an embodiment of the present application; Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle;

[0051] Figure 5 It is a schematic side view of a double-curtain thermal insulation rolling shutter door provided in an embodiment of the present application; Figure 6 yes Figure 5 A magnified schematic diagram of point B in the middle.

[0052] See also Figure 1-Figure 4 As shown, the embodiment of the present application provides a double curtain thermal insulation rolling shutter door, which adopts a double door structure, and mainly includes a door frame 100, a thermal insulation door curtain 20 and a fast door curtain 30, wherein:

[0053] The door frame 100 includes two columns 10 spaced apart in the horizontal direction, and a heat preservation door curtain 20 and a fast door curtain 30 are arranged between the two columns 10. The heat preservation door curtain 20 is arranged close to the inside of the cold storage, and the fast door curtain 30 is arranged close to the outside of the cold storage.

[0054] A driving device 40 connected to the thermal insulation door curtain 20 and the fast door curtain 30 is provided at the top of the column 10. The driving device 40 is used to drive the thermal insulation door curtain 20 and the fast door curtain 30 to lift or lower, and correspondingly open or close the cold storage.

[0055] The thermal insulation door curtain 20 is a multi-layer structure, including outer protective layers on the front and rear sides and a thermal insulation liner layer arranged between the two outer protective layers, and the outer protective layer is made of a flexible polymer material, such as PVC. The thermal insulation liner layer is made of a flexible heat-insulating material, which can make the thermal insulation door curtain 20 have good thermal insulation, excellent thermal insulation performance, and good material stability. Moreover, the thermal insulation door curtain 20 is made of a flexible material and can be bent, so the thermal insulation door curtain 20 can be applied to the driving device 40 of most lifting doors and rolling doors.

[0056] In daily use, the thermal insulation door curtain 20 is usually normally closed or normally open. At the beginning of a day's work, the thermal insulation door curtain 20 is opened, and at the end of a day's work, the thermal insulation door curtain 20 is closed. The fast door curtain 30 is opened and closed during the operation process. It is opened when a material truck needs to pass through the cold storage door, and closed when the material truck passes. It can be used in conjunction with an induction radar that can detect objects to detect objects near the cold storage door, thereby realizing the automatic opening and closing of the fast door, which is very convenient to use.

[0057] The double-curtain thermal insulation rolling shutter door provided in the embodiment of the present application adopts the thermal insulation door curtain 20 to replace the heavy cold storage door sliding door. Compared with the door body made of metal material, the thermal insulation door curtain 20 is not easy to freeze. Moreover, the thermal insulation door curtain 20 is light in weight, and the personnel in the cold storage can escape by manually lifting and opening the thermal insulation door curtain 20. Furthermore, the thermal insulation door curtain 20 can be destroyed by manpower, and even if the thermal insulation door curtain 20 cannot be opened, the thermal insulation door curtain 20 can be destroyed to escape. Moreover, the failure rate is low, and the later maintenance is also very convenient.

[0058] Specifically, the column 10 includes a track 11 and a slide rail 12, the side end of the thermal insulation curtain 20 is slidably arranged in the guide groove 11a of the track 11, and the fast door curtain 30 is slidably arranged in the slide groove of the slide rail 12. The thermal insulation curtain 20 and the fast door curtain 30 slide in the guide groove 11a and the slide groove when they are active.

[0059] See also Figure 4 As shown, in the embodiment of the present application, there are two cavities 11b in the track 11, and the cavity 11b extends along the length direction of the track 11. A heating wire 50 is provided in the cavity 11b, and the thermal insulation door curtain 20 is located between the two cavities 11b. The two cavities 11b are symmetrically distributed on opposite sides of the guide groove 11a, and the cavity 11b is close to the notch of the guide groove 11a. The front and rear sides of the side end of the thermal insulation door curtain 20 can be heated by the heating wire 50 and maintained at a constant temperature, which can prevent the side end of the thermal insulation door curtain 20 from freezing. In addition, the heating wire 50 can also be pre-buried below the surface below the thermal insulation door curtain 20, which can prevent the bottom end of the thermal insulation door curtain 20 from freezing. Moreover, the use of this structure can effectively provide heat insulation blocking and improve thermal insulation performance.

[0060] See also Figure 4As shown, a door curtain seal 13 is provided in the guide groove 11a, and the door curtain seal 13 extends along the length direction of the track 11. The opposite ends of the door curtain seal 13 are respectively connected to the inner walls of the opposite sides of the guide groove 11a, and the side ends of the door curtain seal 13 have a receiving groove, and the side ends of the thermal insulation door curtain 20 are located in the receiving groove. The door curtain seal 13 is made of thermal insulation material, which can isolate the guide groove 11a from the cold storage, reduce heat exchange in the guide groove 11a, effectively provide thermal insulation blocking, and further improve the thermal insulation performance.

[0061] The slide rail 12 is made of heat-insulating material, and two rail 11 sealing strips are symmetrically arranged on opposite sides of the slot of the slide, and the ends of the two rail 11 sealing strips are respectively placed on opposite sides of the fast door curtain 30. Thereby isolating the slide from the cold storage and reducing heat exchange in the slide.

[0062] Similarly, cavities 12a are symmetrically provided on opposite sides of the slot of the slideway, and the cavities 12a extend along the length direction of the slide rail 12. A heating wire 50 is also provided in the cavities 12a. The heating wire 50 can heat the front and rear sides of the side end of the rapid door curtain 30 and maintain a constant temperature, thereby preventing the side end of the rapid door curtain 3 from freezing. In addition, the heating wire 50 can also be pre-buried below the ground surface below the rapid door curtain 3, thereby preventing the bottom end of the rapid door curtain 3 from freezing. Moreover, the use of this structure can effectively provide heat insulation blocking and improve thermal insulation performance.

[0063] See also Figure 4-Figure 6 As shown, in the embodiment of the present application, the double-curtain insulated rolling shutter door also includes a door opening sealing module 60, and a door opening sealing module 60 is provided between the thermal insulation door curtain 20 and the fast door curtain 30. Specifically, the door opening sealing module 60 includes two vertical sealing strips 61 and a horizontal partition strip 62, and the two vertical sealing strips 61 are respectively arranged at the side ends of the two columns 10, and the vertical sealing strips 61 are used to form a partition between the isolation track 11 and the slide rail 12 to reduce heat transfer. The horizontal partition strip 62 is arranged at the top of the vertical sealing strip 61, and the two ends of the horizontal partition strip 62 are respectively connected to the two columns 10, and the horizontal partition strip 62 is used to form a partition between the thermal insulation door curtain 20 and the fast door curtain 30 to prevent heat transfer between the area between the thermal insulation door curtain 20 and the fast door curtain 30 and the area where the top drive device 40 of the door frame 100 is located. See. Figure 2 As shown, in addition, a door opening sealing module 60 is provided on the side of the thermal insulation door curtain 20 away from the fast door curtain 30, and the door opening sealing module 60 is located to block the heat transfer between the thermal insulation door curtain 20 and the wall. The door opening sealing module 60 can provide high-level and efficient thermal insulation and improve the thermal insulation of the double-curtain thermal insulation rolling shutter door.

[0064] See also Figure 4As shown, specifically, the vertical sealing strip 61 includes a sponge sealing bracket 611, a sealing sponge strip 612 and a sealing rubber skin 613. The sealing sponge strip 612 is made of a material with a low thermal conductivity, and is embedded in the mounting groove of the sponge sealing bracket 611. The sealing rubber skin 613 is wrapped around the outside of the sealing sponge strip 612. The opposite ends of the sealing rubber skin 613 are connected to the sponge sealing bracket 611. The sealing sponge strip 612 is fixed in the mounting groove by the elastic force of the sealing rubber skin 613 to prevent it from falling.

[0065] In the description of the embodiments of the present application, it should be understood that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. The orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application 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 application. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0066] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein. For example, it is possible to implement in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A double curtain thermal insulation rolling shutter door, characterized in that: Including door frame, thermal insulation door curtain and fast door curtain; The door frame includes two columns that are spaced apart in the horizontal direction, and the thermal insulation door curtain and the fast door curtain are both arranged between the two columns; The top of the column is provided with a driving device connected with the thermal insulation door curtain and the fast door curtain; The thermal insulation door curtain comprises a thermal insulation inner layer and an outer protective layer, wherein the thermal insulation inner layer is arranged between two outer protective layers.

2. The double curtain thermal insulation rolling shutter door according to claim 1, characterized in that: The upright post comprises a track, and the side end of the thermal insulation door curtain is slidably arranged in a guide groove of the track.

3. The double curtain thermal insulation rolling shutter door according to claim 2, characterized in that: The track is provided with two cavities, the cavities extend along the length direction of the track, heating wires are arranged in the cavities, and the heat-insulating door curtain is located between the two cavities.

4. The double curtain thermal insulation rolling shutter door according to claim 3, characterized in that: The two cavities are symmetrically distributed on opposite sides of the guide groove, and the cavities are close to the notch of the guide groove.

5. The double curtain thermal insulation rolling shutter door according to claim 2, characterized in that: A door curtain seal is provided in the guide groove, and the door curtain seal extends along the length direction of the track; The opposite ends of the door curtain seal are respectively connected to the inner walls of the guide groove on the opposite sides, and the side end of the door curtain seal has a receiving groove, and the side end of the heat-insulating door curtain is located in the receiving groove.

6. The double curtain thermal insulation rolling shutter door according to claim 1, characterized in that: The column comprises a slide rail, the fast door curtain is slidably arranged in a slide groove of the slide rail, two track sealing strips are symmetrically arranged on opposite sides of the notch of the slide groove, and the ends of the two track sealing strips are respectively placed on opposite sides of the fast door curtain.

7. The double curtain thermal insulation rolling shutter door according to any one of claims 1 to 6, characterized in that: The double-curtain thermal insulation rolling shutter door also includes a door opening sealing module, and the door opening sealing module is arranged between the thermal insulation door curtain and the fast door curtain; The door opening sealing module includes two vertical sealing strips and a horizontal partition strip, the two vertical sealing strips are respectively arranged at the side ends of two columns; the horizontal partition strip is arranged at the top end of the vertical sealing strips, and the two ends of the horizontal partition strip are respectively connected to the two columns.

8. The double curtain thermal insulation rolling shutter door according to claim 7, characterized in that: The vertical sealing strip includes a sponge sealing bracket, a sealing sponge strip and a sealing rubber skin. The sealing sponge strip is embedded in the installation groove of the sponge sealing bracket, the sealing rubber skin is wrapped around the outside of the sealing sponge strip, and the opposite ends of the sealing rubber skin are connected to the sponge sealing bracket.

9. The double curtain thermal insulation rolling shutter door according to claim 7, characterized in that: The door opening sealing module is arranged on a side of the thermal insulation door curtain away from the fast door curtain.

10. The double curtain thermal insulation rolling shutter door according to any one of claims 1 to 6, characterized in that: The material of the heat-insulating liner layer is a flexible heat-insulating material.

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