Metal-plastic composite high-sealing structure for box access door

Abstract

The utility model discloses a metal plastic composite high sealing structure for a box access door, which comprises a door frame part and a driving part, the door frame part comprises an assembly part, a sealing part, an inner leaf outer plate and an inner leaf back plate, and the assembly part comprises a plastic outer frame main section bar, a U-shaped steel lining, an aluminum alloy outer frame, an inner steel frame and an inner leaf plastic clamping strip. A U-shaped steel lining is arranged in an inner cavity of the plastic outer frame main sectional material, an aluminum alloy outer frame and an inner steel frame are arranged at the two ends of the plastic outer frame main sectional material respectively, an inner sash plastic clamping strip is arranged at the end, away from the plastic outer frame main sectional material, of the aluminum alloy outer frame, and an inner sash back plate and an inner sash outer plate are connected to the two ends of the inner sash plastic clamping strip in a clamped mode. By means of unique aluminum plastic steel combined materials and precise sealing design, high sealing performance and excellent heat preservation effect are achieved, air leakage and energy loss can be effectively prevented, heat preservation performance is improved, the appearance is attractive and elegant, and the aluminum plastic steel heat preservation window is suitable for various outdoor and indoor environments.

Description

Technical Field

[0001] The utility model relates to the technical field of central air-conditioning and heating, in particular to a metal-plastic composite high-sealing structure for a box inspection door. Background Art

[0002] Central air conditioning refers to a large air conditioning system, which consists of a main unit and a terminal. The main unit is divided into a water-cooled unit and an air-cooled unit. The terminal equipment mainly consists of an air conditioning unit and a fan coil unit. Another type of central air conditioning is a VRV air conditioning unit that uses Freon as a refrigerant. It is different from ordinary household air conditioners. Central air conditioners can be used in large-scale buildings. The main unit of the central air conditioner is usually equipped with an inspection door to facilitate maintenance personnel.

[0003] Traditional inspection door designs often have problems such as insufficient sealing performance and poor thermal insulation, which lead to air leakage, energy loss, and condensation inside the box. Therefore, it is necessary to develop a new inspection door structure to improve its sealing and thermal insulation performance. Utility Model Content

[0004] The utility model aims to provide a metal-plastic composite high-sealing structure for a box inspection door to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a metal-plastic composite high-sealing structure for a box inspection door, comprising a door frame component and a driving component, wherein the driving component is arranged at one end of the door frame component, the door frame component comprises an assembly part, a sealing part, an inner fan outer panel and an inner fan back panel, the assembly part comprises a plastic outer frame main profile, a U-shaped steel liner, an aluminum alloy outer frame, an inner steel frame and an inner fan plastic clip, two symmetrically distributed U-shaped steel liners are arranged in the inner cavity at the upper and lower ends of the plastic outer frame main profile, an aluminum alloy outer frame and an inner steel frame are respectively arranged at the two ends of the plastic outer frame main profile, an inner fan plastic clip is arranged at one end of the aluminum alloy outer frame away from the plastic outer frame main profile, and the two ends of the inner fan plastic clip are clamped with the inner fan back panel and the inner fan outer panel by a limiting mechanism, and the driving component comprises a hinge part and a handle part.

[0006] In a preferred embodiment: the inner steel frame, one end of the plastic outer frame main profile and one of the U-shaped steel liners are combined and connected by connecting bolts one, and the aluminum alloy outer frame, the other end of the plastic outer frame main profile and another U-shaped steel liners are combined and connected by connecting bolts two.

[0007] In a preferred embodiment: the limiting mechanism includes slot one and slot two, the two ends of the inner fan plastic clip are respectively provided with slot one and slot two, the inner fan outer panel and the inner fan back panel both adopt sheet metal bending structure, and are respectively interlocked in slot one and slot two.

[0008] In a preferred embodiment: there are two groups of assemblies, which are symmetrically distributed, and the inner fan outer panel, the inner fan back panel and two symmetrically distributed inner fan plastic clips are integrally laminated and filled with polyurethane foam liquid for solidification and foaming.

[0009] In a preferred embodiment: the seal includes a door frame outer sealing strip, an outer frame sealing strip, an inner frame sealing strip and an inner sash sealing strip, the door frame outer sealing strip is filled between the second connecting bolt and the plastic outer frame main profile, the aluminum alloy outer frame is provided with an outer frame sealing strip at one end close to the inner steel frame, the inner steel frame is provided with an inner frame sealing strip at one end close to the outer frame sealing strip, and the inner sash sealing strip is filled between the plastic outer frame main profile and the inner sash plastic clip strip.

[0010] In a preferred embodiment: a door frame inner sealing strip is filled between the inner steel frame and the plastic outer frame main profile, a barb is provided at one end of the plastic outer frame main profile, and a protrusion is provided at one end of the aluminum alloy outer frame close to the barb, and the protrusion matches the shape of the barb.

[0011] In a preferred embodiment: the driving component includes a hinge component and a handle component, the hinge component is arranged on the aluminum alloy outer frame and the inner fan outer plate, and the handle component is arranged on the inner fan outer plate and the inner fan back plate through a fixed locking tongue.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0013] The utility model realizes high sealing performance and excellent thermal insulation effect through the arrangement of assembling parts, sealing parts, inner fan outer panels and inner fan back panels, through unique aluminum-plastic-steel composite materials and precise sealing design. It can not only effectively prevent air leakage and energy loss and improve thermal insulation performance, but also has beautiful appearance and is suitable for various outdoor and indoor environments. It adopts the overall welding of aluminum alloy outer frame and the overall welding of inner steel frame to make the sheet metal have no gaps and reduce leakage. The aluminum alloy outer frame and the inner steel frame are respectively connected to the U-shaped steel liners in the two independent cavities in the main profile of the plastic outer frame by connecting bolts 1 and 2. The box plate is extruded by locking the aluminum alloy outer frame and the inner steel frame. The aluminum alloy outer frame and the inner steel frame are respectively provided with inner frame sealing strips And the outer frame sealing strip is used to seal between the frame and the door frame body and between the frame and the box plate. The connecting bolts 1 and 2 between the aluminum alloy outer frame and the inner steel frame lock and extrude the inner and outer sealing strips of the door frame to achieve the advantage of being sealed under high pressure environment. Two independent cavities are used with a built-in U-shaped steel lining. The aluminum alloy outer frame and the inner steel frame have no metal connection, and the two independent cavities prevent mutual wind conduction. At the same time, the main profile of the plastic outer frame is non-metallic material, which greatly improves the thermal insulation performance. The inner fan plastic strip disconnects the inner fan metal outer plate and the inner fan back plate, and is filled with polyurethane in the middle. Due to the good thermal insulation performance of polyurethane, the problem of thermal insulation and cold bridge prevention can be solved, and the problem of condensation on the product surface caused by the temperature difference inside and outside the box is completely eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the upper structure of the inspection door of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the inspection door of the utility model;

[0017] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0018] In the figure: 1. Inner sash outer panel; 2. Inner sash back panel; 3. Plastic outer frame main profile; 4. U-shaped steel lining; 5. Aluminum alloy outer frame; 6. Inner steel frame; 7. Inner sash plastic clip strip; 8. Connecting bolt one; 9. Connecting bolt two; 10. Clip slot one; 11. Clip slot two; 12. Door frame outer sealing strip; 13. Outer frame sealing strip; 14. Inner frame sealing strip; 15. Inner sash sealing strip; 16. Door frame inner sealing strip; 17. Barb piece; 18. Protrusion; 19. Fixed lock tongue. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 3 The utility model provides a technical solution: a metal-plastic composite high-sealing structure for a box inspection door, comprising a door frame component and a driving component, wherein the driving component is arranged at one end of the door frame component, the door frame component comprises an assembly part, a sealing part, an inner fan outer plate 1 and an inner fan back plate 2, the assembly part comprises a plastic outer frame main profile 3, a U-shaped steel liner 4, an aluminum alloy outer frame 5, an inner steel frame 6 and an inner fan plastic clip 7, two symmetrically distributed U-shaped steel liners 4 are arranged in the inner cavity at the upper and lower ends of the plastic outer frame main profile 3, the two ends of the plastic outer frame main profile 3 are respectively provided with an aluminum alloy outer frame 5 and an inner steel frame 6, the end of the aluminum alloy outer frame 5 away from the plastic outer frame main profile 3 is provided with an inner fan plastic clip 7, the two ends of the inner fan plastic clip 7 are clamped with the inner fan back plate 2 and the inner fan outer plate 1 through a limiting mechanism, and the driving component comprises a hinge part and a handle part.

[0021] When in use, the aluminum alloy outer frame 5 is pressed onto the main plastic outer frame profile 3, and the connecting bolts 9 are driven into the outer cavity U-shaped steel lining in the main plastic outer frame profile 3 through the screw holes on the aluminum alloy outer frame 5 to ensure that the aluminum alloy outer frame 5 is tightly connected to the main plastic outer frame profile 3. A door outer frame sealing strip 13 is arranged between the aluminum alloy outer frame 5 and the main plastic outer frame profile 3, and the door outer frame sealing strip 13 is pressed to ensure the sealing between the two to completely prevent air leakage, and then the door is put into the pre-opened hole on the box board, and then The inner steel frame 6 is pressed onto the main plastic outer frame profile 3, and the connecting bolts 8 are driven into the inner U-shaped steel lining in the main plastic outer frame profile 3. Under the interaction, the inner steel frame 6 and the aluminum alloy outer frame 5 are pressed and clamped to clamp the box board. Inner frame sealing strips 14 and outer frame sealing strips 13 are arranged between the inner steel frame 6 and the box board and between the aluminum alloy outer frame 5 and the box board to ensure the sealing between the box board and the door frame, prevent leakage between the aluminum alloy outer frame 5 and the box board, and prevent rainwater from penetrating when used outdoors.

[0022] The inner steel frame 6, one end of the plastic outer frame main profile 3 and one of the U-shaped steel liners 4 are combined and connected by a connecting bolt 8, and the aluminum alloy outer frame 5, the other end of the plastic outer frame main profile 3 and another U-shaped steel liners 4 are combined and connected by a connecting bolt 9.

[0023] The limiting mechanism includes a card slot 10 and a card slot 2 11, and the two ends of the inner fan plastic card strip 7 are respectively provided with a card slot 10 and a card slot 2 11, and the inner fan outer panel 1 and the inner fan back panel 2 both adopt a sheet metal bending structure, which are respectively interlocked in the card slot 10 and the card slot 2 11.

[0024] There are two groups of assemblies, which are symmetrically distributed. The inner fan outer panel 1, the inner fan back panel 2 and two symmetrically distributed inner fan plastic clips 7 are integrally laminated and filled with polyurethane foaming liquid for solidification and foaming.

[0025] The sealing component includes an outer door frame sealing strip 12, an outer frame sealing strip 13, an inner frame sealing strip 14 and an inner sash sealing strip 15. The outer door frame sealing strip 12 is filled between the connecting bolt 29 and the plastic outer frame main profile 3. The outer frame sealing strip 13 is provided at one end of the aluminum alloy outer frame 5 close to the inner steel frame 6. The inner frame sealing strip 14 is provided at one end of the inner steel frame 6 close to the outer frame sealing strip 13. The inner sash sealing strip 15 is filled between the plastic outer frame main profile 3 and the inner sash plastic clip strip 7.

[0026] An inner door frame sealing strip 16 is filled between the inner steel frame 6 and the main plastic outer frame profile 3. A barb 17 is provided at one end of the main plastic outer frame profile 3. A protrusion 18 is provided at one end of the aluminum alloy outer frame close to the barb 17. The protrusion 18 matches the shape of the barb 17. The arrangement of the barb 17 increases the wind pressure resistance of the device.

[0027] The driving component includes a hinge and a handle. The hinge is arranged on the aluminum alloy outer frame 5 and the inner fan outer plate 1. The handle is arranged on the inner fan outer plate 1 and the inner fan back plate 2 through a fixed lock tongue 19.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A metal-plastic composite high-sealing structure for a box inspection door, comprising a door frame component and a drive component, characterized in that: The driving component is arranged at one end of the door frame component. The door frame component includes an assembly component, a sealing component, an inner leaf outer plate (1) and an inner leaf back plate (2). The assembly component includes a plastic outer frame main profile (3), a U-shaped steel liner (4), an aluminum alloy outer frame (5), an inner steel frame (6) and an inner leaf plastic clip (7). Two symmetrically distributed U-shaped steel liners (4) are arranged in the inner cavities at the upper and lower ends of the plastic outer frame main profile (3). The two ends of the plastic outer frame main profile (3) are respectively provided with an aluminum alloy outer frame (5) and an inner steel frame (6). The end of the aluminum alloy outer frame (5) away from the plastic outer frame main profile (3) is provided with an inner leaf plastic clip (7). The two ends of the inner leaf plastic clip (7) are clamped with the inner leaf back plate (2) and the inner leaf outer plate (1) through a limiting mechanism.

2. The metal-plastic composite high sealing structure for a box inspection door according to claim 1, characterized in that: The inner steel frame (6), one end of the main plastic outer frame profile (3) and one of the U-shaped steel liners (4) are combined and connected by a first connecting bolt (8), and the aluminum alloy outer frame (5), the other end of the main plastic outer frame profile (3) and another of the U-shaped steel liners (4) are combined and connected by a second connecting bolt (9).

3. The metal-plastic composite high sealing structure for a box inspection door according to claim 1, characterized in that: The limiting mechanism comprises a first card slot (10) and a second card slot (11); the two ends of the inner fan plastic card strip (7) are respectively provided with a first card slot (10) and a second card slot (11); the inner fan outer plate (1) and the inner fan back plate (2) both adopt a sheet metal bending structure and are respectively interlocked in the first card slot (10) and the second card slot (11).

4. The metal-plastic composite high sealing structure for a box inspection door according to claim 1, characterized in that: There are two groups of assembly parts, which are symmetrically distributed. The inner fan outer plate (1), the inner fan back plate (2) and two symmetrically distributed inner fan plastic clips (7) are integrally laminated and filled with polyurethane foaming liquid to solidify and foam.

5. The metal-plastic composite high sealing structure for a box inspection door according to claim 2, characterized in that: The sealing member comprises a door frame outer sealing strip (12), an outer frame sealing strip (13), an inner frame sealing strip (14) and an inner sash sealing strip (15); the door frame outer sealing strip (12) is filled between the second connecting bolt (9) and the plastic outer frame main profile (3); an outer frame sealing strip (13) is provided at one end of the aluminum alloy outer frame (5) close to the inner steel frame (6); an inner frame sealing strip (14) is provided at one end of the inner steel frame (6) close to the outer frame sealing strip (13); and an inner sash sealing strip (15) is filled between the plastic outer frame main profile (3) and the inner sash plastic clip strip (7).

6. The metal-plastic composite high sealing structure for a box inspection door according to claim 1, characterized in that: A door frame inner sealing strip (16) is filled between the inner steel frame (6) and the main plastic outer frame profile (3); a barb (17) is provided at one end of the main plastic outer frame profile (3); a protrusion (18) is provided at one end of the aluminum alloy outer frame close to the barb (17); and the protrusion (18) matches the shape of the barb (17).

7. The metal-plastic composite high sealing structure for a box inspection door according to claim 1, characterized in that: The driving component comprises a hinge part and a handle part, wherein the hinge part is arranged on an aluminum alloy outer frame (5) and an inner fan outer plate (1), and the handle part is arranged on the inner fan outer plate (1) and an inner fan back plate (2) via a fixed locking tongue (19).

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