High-strength airtight air conditioner access door

Abstract

The utility model provides a high-strength airtight air conditioner access door, which relates to the field of air conditioner access doors, and comprises an inner leaf outer metal plate, an inner leaf inner metal plate, a polyurethane box plate, a metal outer frame, an inner mounting frame, a fixing screw, an inner leaf heat insulation covered edge, a heat insulation top sleeve, sealing cotton, a sealing strip and an outer frame heat insulation strip, the polyurethane box plate, the metal outer frame and the inner mounting frame are combined to form a door frame; the inner leaf outer metal plate and the inner leaf inner metal plate are combined to form the door plate with a double-layer metal structure, the strength and rigidity of the door are remarkably improved, the combined door frame of the polyurethane box plate, the metal outer frame and the inner mounting frame not only enhances the overall stability of the door, but also provides good heat insulation performance, and the service life of the door is prolonged. By applying multiple layers of sealing materials such as sealing cotton, sealing strips and outer frame heat insulation strips, a gap between the door frame and the door plate is effectively filled, exchange of indoor air and outdoor air is prevented, and therefore stability and comfort of the indoor environment are kept.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioner access doors, specifically a high-strength airtight air conditioner access door. Background Technology

[0002] Air conditioner access doors are mainly used for the maintenance and repair of air conditioning systems. They provide access for maintenance personnel to the installation location of the outdoor unit, thus facilitating maintenance and repair work.

[0003] According to Chinese patent application number 202020576940.6, an industrial air conditioner maintenance door is disclosed, including a door frame, a door panel, and a door handle. The door frame and the door panel are connected by heavy-duty hinges. The door frame includes a first door frame with heavy-duty hinges and a second door frame with sealing strips. The door panel includes an outer door panel and an inner door panel. The inner door panel is embedded in the outer door panel. A sealing strip is provided in a peripheral groove formed at the embedding point. An observation window assembly is provided in the middle of the door panel. The observation window assembly includes tempered glass, glass strips, glass inlays, a wall panel, and a steel ring. The steel ring is located on the upper part of the door panel. The glass strips and the wall panel are embedded in the grooves of the glass inlays. The tempered glass is embedded between the glass inlays.

[0004] Existing technology effectively solves the technical problem of poor sealing of air conditioner access doors, which causes leakage of hot and cold air and increases the load on the unit. It improves the sealing performance of access doors and reduces the load on air conditioning units. However, the air tightness of air conditioner access doors is poor, and water leakage is prone to occur after the rubber strips age, which can easily affect the sealing effect of the access door.

[0005] In summary, this utility model provides a high-strength, airtight air conditioning access door to solve the above problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A high-strength, airtight air conditioning access door includes an inner fan outer sheet metal, an inner fan inner sheet metal, a polyurethane panel, a metal outer frame, an inner mounting frame, fixing screws, an inner fan heat insulation edging, a heat insulation top sleeve, sealing cotton, a sealing strip, and an outer frame heat insulation strip. The inner fan outer sheet metal and inner fan inner sheet metal are combined to form a door panel. The polyurethane panel, metal outer frame, and inner mounting frame are combined to form a door frame. The fixing screws, heat insulation top sleeve, sealing cotton, sealing strip, and outer frame heat insulation strip are used to seal the connection between the door frame and the door panel. The two ends of the inner fan heat insulation edging are respectively connected to the inner fan outer sheet metal and inner fan inner sheet metal. The sealing cotton is located at the connection between the inner mounting frame and the metal outer frame. One end of the fixing screw passes through the inner mounting frame and the sealing cotton and extends into the inner cavity of the metal outer frame, and is threadedly connected to the inner cavity of the metal outer frame. The heat insulation top sleeve is fitted onto the surface of the fixing screw. One end of the outer frame heat insulation strip extends between the sealing cotton and the metal outer frame.

[0008] Furthermore, in this utility model, the metal outer frame and the inner mounting frame are respectively fixed to the front and back of the polyurethane box panel. Both ends of the metal outer frame and the inner mounting frame are attached to the heat insulation strip of the outer frame. The metal outer frame is cold-bent and formed with a stepped structure and multiple seals, one of which is formed by a knife edge to form a knife edge seal. It is integrally welded, powder-coated, and the gaps are filled with plastic sealant. The inner mounting frame can be installed in both directions.

[0009] Furthermore, in this utility model, one end of the metal outer frame contacts the inner fan heat insulation edging, the sealing strip is located at the connection between the metal outer frame and the inner fan heat insulation edging, and the sealing strip is fixedly connected to the inner fan heat insulation edging.

[0010] Furthermore, in this utility model, the two ends of the inner fan heat insulation edging are respectively fixedly connected to the outer sheet metal of the inner fan and the inner sheet metal of the inner fan, and one end of the heat insulation top sleeve passes through the inner mounting frame and is sleeved on the surface of the fixing screw.

[0011] Beneficial effects: This utility model has the following beneficial effects:

[0012] This utility model forms a double-layer metal structure door panel by combining the outer sheet metal of the inner door and the inner sheet metal of the inner door, which significantly improves the strength and rigidity of the door and can resist external impacts and pressure. The combination of polyurethane box panel, metal outer frame and inner mounting frame not only enhances the overall stability of the door, but also provides good heat insulation performance. The application of multi-layer sealing materials such as sealing cotton, sealing strip and outer frame heat insulation strip effectively fills the gap between the door frame and the door panel, preventing the exchange of indoor and outdoor air, thereby maintaining the stability and comfort of the indoor environment. It not only meets the requirements of high strength and airtightness, but also effectively solves the problems of poor airtightness and easy water leakage after the aging of the rubber strip in existing air conditioner access doors. Attached Figure Description

[0013] Figure 1 This is a top view cross-sectional structural diagram of the present invention;

[0014] Figure 2 This is a top view cross-sectional structural diagram of the inner fan outer sheet metal, inner fan inner sheet metal and polyurethane box panel of this utility model.

[0015] Figure 3 This is a schematic diagram of the main structure of the inspection door of this utility model.

[0016] In the picture:

[0017] 1. Outer sheet metal of inner fan; 2. Inner sheet metal of inner fan; 3. Polyurethane box panel; 4. Metal outer frame; 5. Inner mounting frame; 6. Fixing screws; 7. Inner fan heat insulation edging; 8. Heat insulation top sleeve; 9. Sealing cotton; 10. Sealing strip; 11. Outer frame heat insulation strip. Detailed Implementation

[0018] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0019] Example 1

[0020] like Figure 1-3 As shown, this is the first embodiment of the present invention. This embodiment provides a high-strength, airtight air conditioning maintenance door, including an inner fan outer sheet metal 1, an inner fan inner sheet metal 2, a polyurethane panel 3, a metal outer frame 4, an inner mounting frame 5, fixing screws 6, an inner fan heat insulation edging 7, a heat insulation top sleeve 8, sealing cotton 9, a sealing strip 10, and an outer frame heat insulation strip 11. The inner fan outer sheet metal 1 and the inner fan inner sheet metal 2 are combined to form a door panel, and the polyurethane panel 3, the metal outer frame 4, and the inner mounting frame 5 are combined to form a door frame. The fixing screws 6, the heat insulation top sleeve 8, and the sealing cotton are all present. 9. The sealing strip 10 and the outer frame heat insulation strip 11 are used to seal the connection between the door frame and the door panel. The two ends of the inner fan heat insulation edging 7 are respectively connected to the inner fan outer sheet metal 1 and the inner fan inner sheet metal 2. The sealing cotton 9 is located at the connection between the inner mounting frame 5 and the metal outer frame 4. One end of the fixing screw 6 passes through the inner mounting frame 5 and the sealing cotton 9 and extends to the inner cavity of the metal outer frame 4, and is threadedly connected to the inner cavity of the metal outer frame 4. The heat insulation top sleeve 8 is fitted on the surface of the fixing screw 6. One end of the outer frame heat insulation strip 11 extends between the sealing cotton 9 and the metal outer frame 4.

[0021] like Figure 1-3 As shown, the inner door panel is formed by combining the outer sheet metal 1 and the inner sheet metal 2, providing basic structural strength and rigidity for the access door. The polyurethane panel 3, as part of the door frame, has excellent thermal insulation properties, helping to maintain stable room temperature. The metal outer frame 4 and the inner mounting frame 5 combine to form the door frame, providing installation and support for the door panel and enhancing the overall strength of the door. Fixing screws 6 are used to tightly connect the door frame and the door panel, ensuring the door's stability and airtightness. The inner door insulation edging 7 connects to the inner door outer sheet metal 1 and the inner door inner sheet metal 2, further enhancing the door's thermal insulation performance. The thermal insulation top sleeve 8 is fitted onto the fixed... The surface of screw 6 prevents thermal bridging and improves insulation. Sealing cotton 9 and sealing strip 10 are used to fill the gap between the door frame and the door panel to ensure the airtightness of the door. The outer frame heat insulation strip 11 is located between the metal outer frame 4 and other parts of the door frame, providing additional heat insulation. Through the application of multiple sealing materials such as sealing cotton 9, sealing strip 10 and outer frame heat insulation strip 11, the gap between the door frame and the door panel is effectively filled, preventing the exchange of indoor and outdoor air, thereby maintaining the stability and comfort of the indoor environment. It not only meets the requirements of high strength and airtightness, but also effectively solves the problems of poor airtightness and easy leakage after the aging of the rubber strip in existing air conditioning access doors.

[0022] Example 2

[0023] Reference Figure 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0024] In this embodiment, the metal outer frame 4 and the inner mounting frame 5 are fixed to the front and back of the polyurethane box panel 3, respectively. Both ends of the metal outer frame 4 and the inner mounting frame 5 are attached to the outer frame heat insulation strip 11. The metal outer frame 4 is cold-bent and has a stepped structure with multiple seals, one of which is formed by a knife edge to form a knife edge seal. It is welded as a whole, powder-coated, and the gaps are filled with plastic sealant. The inner mounting frame 5 can be installed in both directions.

[0025] One end of the metal outer frame 4 contacts the inner fan heat insulation edge 7, and the sealing strip 10 is located at the connection between the metal outer frame 4 and the inner fan heat insulation edge 7. The sealing strip 10 is fixedly connected to the inner fan heat insulation edge 7.

[0026] The two ends of the inner fan heat insulation edging 7 are fixedly connected to the outer sheet metal 1 and the inner sheet metal 2 of the inner fan, respectively. One end of the heat insulation top sleeve 8 passes through the inner mounting frame 5 and is sleeved on the surface of the fixing screw 6.

[0027] like Figure 1-3As shown, the inner door outer sheet metal 1 and inner door inner sheet metal 2 are combined to form a sturdy door panel, while the polyurethane box panel 3, metal outer frame 4, and inner mounting frame 5 are combined to form the door frame. The metal outer frame 4 is welded all around to prevent leakage. The metal outer frame 4 has a stepped structure, which can provide single or multiple seals. One of the seals is formed by a knife edge, forming a knife edge seal. The entire frame is welded, powder-coated, and the gaps are filled with plastic sealant, resulting in high strength and no deformation. The inner mounting frame 5 can be installed in both directions to meet different sheet thickness requirements, making it simpler and providing stable support for the door. Components such as fixing screws 6, heat insulation top sleeve 8, sealing cotton 9, sealing strip 10, and outer frame heat insulation strip 11 work together at the connection between the door frame and the door panel to ensure the airtightness of the door. For thermal insulation performance, one end of the fixing screw 6 passes through the inner mounting frame 5 and the sealing cotton 9, and extends to the inner cavity of the metal outer frame 4 for threaded connection, ensuring a tight connection between the door frame and the door panel. The sealing cotton 9 is located at the connection between the inner mounting frame 5 and the metal outer frame 4, effectively filling gaps and preventing air leakage. The thermal insulation top sleeve 8 is fitted onto the surface of the fixing screw 6, and a cap is provided on the fixing screw 6 to seal and isolate cold bridges, prevent the thermal bridge effect, and improve the thermal insulation performance of the door. The two ends of the inner fan thermal insulation edge 7 are connected to the inner fan outer sheet metal 1 and the inner fan inner sheet metal 2 respectively, enhancing the thermal insulation effect of the door. The inner fan thermal insulation edge 7 also contacts the metal outer frame 4 and is sealed by the sealing strip 10, further improving the airtightness of the door.

[0028] In use, the inner door outer sheet metal 1 and the inner door inner sheet metal 2 combine to form the door panel, providing basic structural strength and rigidity for the access door. The polyurethane panel 3, as part of the door frame, has excellent thermal insulation properties, helping to maintain stable room temperature. The metal outer frame 4 and the inner mounting frame 5 combine to form the door frame, providing installation and support for the door panel while also enhancing the overall strength of the door. Fixing screws 6 are used to tightly connect the door frame and the door panel, ensuring the door's stability and airtightness. The inner door thermal insulation edging 7 connects to the inner door outer sheet metal 1 and the inner door inner sheet metal 2, further enhancing the door's thermal insulation performance. The thermal insulation top sleeve 8 is fitted onto the surface of the fixing screws 6 to prevent thermal bridging and improve the insulation effect. The sealing cotton 9 and sealing strip 10 are used to fill the gap between the door frame and the door panel to ensure the airtightness of the door. The outer frame heat insulation strip 11 is located between the metal outer frame 4 and other parts of the door frame, providing additional heat insulation. Through the application of multiple layers of sealing materials such as sealing cotton 9, sealing strip 10 and outer frame heat insulation strip 11, the gap between the door frame and the door panel is effectively filled. When the door is closed, the sealing cotton 9, sealing strip 10 and outer frame heat insulation strip 11 between the door panel and the door frame are in close contact, forming a multi-layer sealing structure, which effectively prevents the exchange of indoor and outdoor air, maintains the stability and comfort of the indoor environment, not only achieving the requirements of high strength and airtightness, but also effectively solving the problems of poor airtightness and easy water leakage after the aging of the rubber strip in existing air conditioning access doors.

[0029] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0030] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A high-strength, airtight air conditioning access door, comprising an inner fan outer sheet metal (1), an inner fan inner sheet metal (2), a polyurethane panel (3), a metal outer frame (4), an inner mounting frame (5), fixing screws (6), an inner fan heat insulation edging (7), a heat insulation top sleeve (8), sealing cotton (9), a sealing strip (10), and an outer frame heat insulation strip (11), characterized in that: The inner fan outer sheet metal (1) and inner fan inner sheet metal (2) are combined to form a door panel. The polyurethane box panel (3), metal outer frame (4) and inner mounting frame (5) are combined to form a door frame. The fixing screw (6), heat insulation top sleeve (8), sealing cotton (9), sealing strip (10) and outer frame heat insulation strip (11) are used to seal the connection between the door frame and the door panel. The two ends of the inner fan heat insulation edging (7) are respectively connected to the inner fan outer sheet metal (1) and inner fan inner sheet metal (2). The sealing cotton (9) is located at the connection between the inner mounting frame (5) and the metal outer frame (4). One end of the fixing screw (6) passes through the inner mounting frame (5) and the sealing cotton (9) and extends to the inner cavity of the metal outer frame (4), and is threadedly connected to the inner cavity of the metal outer frame (4). The heat insulation top sleeve (8) is fitted on the surface of the fixing screw (6). One end of the outer frame heat insulation strip (11) extends between the sealing cotton (9) and the metal outer frame (4).

2. The high-strength, airtight air conditioning access door as described in claim 1, characterized in that: The outer metal frame (4) and the inner mounting frame (5) are respectively fixed to the front and back of the polyurethane box panel (3). Both ends of the outer metal frame (4) and the inner mounting frame (5) are attached to the outer frame heat insulation strip (11). The outer metal frame (4) is cold-bent and has a stepped structure with multiple seals, one of which is formed by a knife edge to form a knife edge seal. It is welded as a whole, powder-coated, and the gaps are filled with plastic sealant. The inner mounting frame (5) can be installed in both directions.

3. The high-strength, airtight air conditioning access door as described in claim 1, characterized in that: One end of the metal outer frame (4) is in contact with the inner fan heat insulation edging (7), and the sealing strip (10) is located at the connection between the metal outer frame (4) and the inner fan heat insulation edging (7). The sealing strip (10) is fixedly connected to the inner fan heat insulation edging (7).

4. The high-strength, airtight air conditioning access door as described in claim 1, characterized in that: The two ends of the inner fan heat insulation edging (7) are fixedly connected to the inner fan outer sheet metal (1) and the inner fan inner sheet metal (2) respectively. One end of the heat insulation top sleeve (8) passes through the inner mounting frame (5) and is sleeved on the surface of the fixing screw (6).

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