Air handling unit access door with multiple sealing structures

Abstract

The utility model discloses an air handling unit access door with multiple sealing structures, which belongs to the technical field of access doors and comprises a door body and a door frame, and a first sealing component is arranged on the door body; a second sealing assembly is arranged on the door frame; the sealing end of the first sealing assembly and the sealing end of the second sealing assembly are arranged at an interval in the thickness direction of the door body; when the door body and the door frame are locked, the first sealing assembly abuts against the second sealing assembly to form a sealing structure. The first sealing assembly and the second sealing assembly are arranged on the door body and the door frame correspondingly, so that the sealing performance after the door body and the door frame are locked can be guaranteed; due to the fact that the heat conduction coefficient of metal materials is large, the sealing end of the first sealing assembly and the sealing end of the second sealing assembly are arranged in the thickness direction of the door body in a spaced mode, and it can be avoided that due to direct contact of the sealing ends, heat transfer of the internal environment and the external environment is promoted, and the overall heat preservation performance is affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of inspection doors, and in particular relates to an air-conditioning box inspection door with a multiple sealing structure. Background Art

[0002] In order to facilitate the transportation of the internal components of the air handling unit and the subsequent inspection and maintenance work, a corresponding inspection door is usually opened on the shell of the air handling unit; and in order to ensure the overall air tightness and thermal insulation, the inspection door is usually an aluminum alloy door with a thermal break structure, or a door body without a thermal break structure processed by sheet metal bending technology.

[0003] However, in actual use, it is found that the above-mentioned door bodies often have the following problems:

[0004] 1) The sealing performance of the door body sealing structure is not high and cannot meet the sealing and leakage requirements under high positive pressure conditions (>1500Pa).

[0005] 2) Because the operating temperature of the air handling device is low and the maintenance door's thermal insulation structure is not complete, condensation is prone to occur on the door frame surface in seasons with high humidity.

[0006] 3) The inspection door is not strong enough, especially under high wind pressure conditions, the door body is prone to deformation. Utility Model Content

[0007] The technical problem to be solved by the utility model is: how to provide an air-conditioning box inspection door with a multiple sealing structure which can improve the air tightness and heat preservation of the door body.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0009] An air conditioning box inspection door with a multiple sealing structure comprises a door body and a door frame, wherein the door body is provided with a first sealing assembly;

[0010] The door frame is provided with a second sealing assembly;

[0011] The sealing end of the first sealing component and the sealing end of the second sealing component are spaced apart in the thickness direction of the door body;

[0012] When the door body and the door frame are locked, the first sealing component and the second sealing component are in conflict with each other to form a sealing structure.

[0013] Furthermore, the first sealing assembly comprises a first profile frame, a first thermal break member and a first sealing member which are connected in sequence;

[0014] The first thermal break member is connected to the door body via a first profile frame;

[0015] The second sealing assembly comprises a second profile frame, a second thermal break member and a second sealing member which are connected in sequence;

[0016] The second thermal break member is connected to the door frame via a second profile frame;

[0017] When the door body and the door frame are locked, the first sealing member conflicts with the second profile frame, and the second sealing member conflicts with the first profile frame.

[0018] Furthermore, the door body and door frame are sliding door structures;

[0019] When the door body and the door frame are locked, the first sealing member and the second profile frame form a first sealing surface, and the second sealing member and the first profile frame form a second sealing surface;

[0020] In the projection of the door body in the height direction, the first sealing surface and the second sealing surface are both arranged at an angle with the moving direction of the door body.

[0021] Further, the second sealing assembly also includes a third profile frame and a third sealing member;

[0022] The third sealing member is connected to the second thermally-insulated bridge member via a third profile frame;

[0023] When the door body and the door frame are locked, the third sealing member and the first profile frame are in conflict with each other.

[0024] Further, when the door body and the door frame are locked, the third sealing member and the first profile frame form a third sealing surface;

[0025] In the projection of the door body in the height direction, the third sealing surface and the moving direction of the door body are parallel to each other.

[0026] Furthermore, the second sealing member and the third sealing member are both hollow structures;

[0027] The sealing end of the first sealing member is a serrated structure.

[0028] Further, the contact surface between the first profile frame and the second sealing member, and the contact surface between the second profile frame and the first sealing member are both toothed surfaces;

[0029] The contact surface between the first profile frame and the third sealing member is a smooth surface.

[0030] Furthermore, the lengths of the first thermal break member and the second thermal break member in the thickness direction of the door body are both 30 mm to 40 mm.

[0031] Furthermore, reinforcement members are provided inside the door body and inside the door frame.

[0032] Furthermore, a door lock is provided on the door body.

[0033] The beneficial effects of the utility model are as follows: the air-conditioning box inspection door with a multiple sealing structure provided by the utility model can ensure the sealing of the door body and the door frame after being locked by respectively arranging the first sealing component and the second sealing component on the door body and the door frame; because the thermal conductivity coefficient of metal materials is large, the sealing end of the first sealing component and the sealing end of the second sealing component are spaced apart in the thickness direction of the door body, which can avoid promoting heat transfer between the internal and external environments due to direct contact of the sealing ends, thereby affecting the overall thermal insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Shown is a cross-sectional view of a door body according to a specific embodiment of the utility model;

[0035] Figure 2 Shown is a cross-sectional view of a door frame according to a specific embodiment of the present utility model;

[0036] Figure 3 Shown is a schematic structural diagram of a door body and a door frame according to a specific embodiment of the utility model;

[0037] Description of labels:

[0038] 1. Door body; 11. First sealing assembly; 111. First profile frame; 112. First thermal break member; 113. First sealing member;

[0039] 2. Door frame; 21. Second sealing assembly; 211. Second profile frame; 212. Second thermal break member; 213. Second sealing member; 214. Third profile frame; 215. Third sealing member;

[0040] 3. Reinforcement;

[0041] 4. Door lock. DETAILED DESCRIPTION

[0042] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0043] The most critical concept of the utility model is that a first sealing component and a second sealing component are respectively arranged on the door body and the door frame to ensure the sealing of the inspection door after being locked; since metal materials have a large thermal conductivity coefficient, different thermal conductive materials are arranged at intervals on the sealing end of the first sealing component and the sealing end of the second sealing component in the thickness direction of the door body, which can avoid direct contact between metal materials with high thermal conductivity coefficients and promote the transfer of internal and external heat, thereby affecting the overall thermal insulation.

[0044] Please refer to Figures 1 to 3The air-conditioning box inspection door with a multiple sealing structure provided by the utility model comprises a door body 1 and a door frame 2, and a first sealing component 11 is provided on the door body 1;

[0045] The door frame 2 is provided with a second sealing assembly 21;

[0046] The sealing end of the first sealing component 11 and the sealing end of the second sealing component 21 are spaced apart in the thickness direction of the door body 1;

[0047] When the door body 1 and the door frame 2 are locked, the first sealing component 11 and the second sealing component 21 are in contact with each other to form a sealing structure.

[0048] Specifically, the door body 1 and the door frame 2 may be filled with corresponding insulation materials to form an insulation layer. The insulation materials may be one or more of polyurethane foam, rock wool, aluminum silicate wool, and perlite.

[0049] From the above description, it can be seen that the beneficial effects of the utility model are: providing an air-conditioning box inspection door with a multiple sealing structure, by respectively arranging the first sealing component 11 and the second sealing component 21 on the door body 1 and the door frame 2, the sealing of the door body 1 and the door frame 2 after being locked can be ensured; because solids have the ability to conduct heat, the sealing end of the first sealing component 11 and the sealing end of the second sealing component 21 are spaced apart in the thickness direction of the door body 1, which can avoid direct contact between the sealing ends and promote heat transfer between the internal and external environments; compared with the existing air-conditioning box inspection door, it can improve the overall sealing and thermal insulation from the gas flow path and heat blocking method, thereby ensuring that the components inside the air-conditioning box can work smoothly under stable working conditions.

[0050] Furthermore, the first sealing component 11 comprises a first profile frame 111, a first thermal break member 112 and a first sealing member 113 which are connected in sequence;

[0051] The first breaking bridge 112 is connected to the door body 1 through the first profile frame 111;

[0052] The second sealing assembly 21 comprises a second profile frame 211, a second thermal break member 212 and a second sealing member 213 which are connected in sequence;

[0053] The second thermal break member 212 is connected to the door frame 2 via the second profile frame 211;

[0054] When the door body 1 and the door frame 2 are locked, the first sealing member 113 abuts against the second profile frame 211 , and the second sealing member 213 abuts against the first profile frame 111 .

[0055] Specifically, the shape of the first profile frame 111 is consistent with the shape of the second profile frame 211 ; the shape of the first thermal break bridge member 112 is consistent with the shape of the second thermal break bridge member 212 .

[0056] From the above description, it can be seen that the design makes specific modifications to the structure of the first sealing component 11 and the second sealing component 21, so as to provide structural support for the first sealing member 113 and the second sealing member 213 to be spaced apart in the thickness direction of the door body 1.

[0057] Furthermore, the door body 1 and the door frame 2 are a sliding door structure;

[0058] When the door body 1 and the door frame 2 are locked, the first sealing member 113 and the second profile frame 211 form a first sealing surface, and the second sealing member 213 and the first profile frame 111 form a second sealing surface;

[0059] In the projection of the height direction of the door body 1, the first sealing surface and the second sealing surface are both set at an angle with the moving direction of the door body 1, and the angle is Figure 1 The angle α in .

[0060] Preferably, the angle between the first sealing surface and the moving direction of the door body 1 and the angle between the second sealing surface and the moving direction of the door body 1 are both 40° to 50°.

[0061] From the above description, it can be seen that after the door body 1 and the door frame 2 are locked, the design further optimizes the sealing angle requirements of the first sealing component 11 and the second sealing component 21; since the sealing component is prone to aging with the passage of time, it is ensured that the first sealing surface and the second sealing surface are projected in the height direction of the door body 1 and are set at an angle to the moving direction of the door body 1. When the sealing component is not replaced in time and an airtightness problem occurs, it can indirectly increase the moving distance of the gas and prevent the free flow of internal and external air, thereby affecting the overall thermal insulation effect.

[0062] Further, the second sealing assembly 21 also includes a third profile frame 214 and a third sealing member 215;

[0063] The third sealing member 215 is connected to the second thermally-insulated bridge member 212 via a third profile frame 214;

[0064] When the door body 1 and the door frame 2 are locked, the third sealing member 215 and the first profile frame 111 are in conflict with each other.

[0065] Furthermore, when the door body 1 and the door frame 2 are locked, the third sealing member 215 and the first profile frame 111 form a third sealing surface;

[0066] In the projection of the door body 1 in the height direction, the third sealing surface and the moving direction of the door body 1 are parallel to each other.

[0067] From the above description, it can be seen that the provision of the third sealing member 215 can further improve the overall sealing after the door body 1 and the door frame 2 are locked, and ensure that the projection of the third sealing surface in the height direction of the door body 1 is parallel to the moving direction of the door body 1, which can further block the possibility of mutual circulation between internal and external gases, thereby effectively improving the overall air tightness and thermal insulation.

[0068] Furthermore, the second sealing member 213 and the third sealing member 215 are both hollow structures;

[0069] The sealing end of the first sealing member 113 is a serrated structure.

[0070] Further, the contact surface between the first profile frame 111 and the second seal 213, and the contact surface between the second profile frame 211 and the first seal 113 are both toothed surfaces;

[0071] The contact surface between the first profile frame 111 and the third sealing member 215 is a smooth surface.

[0072] Specifically, one side of the door body 1 in the thickness direction is the inner side, and the other side is the outer side. Along the direction from the inner side to the outer side, the third seal 215, the second seal 213 and the first seal 113 are arranged in sequence; and the third seal 215 can be operated in a wind pressure range of 800Pa to 1000Pa without leakage; the second seal 213 can be operated in a wind pressure range of 1000Pa to 1500Pa without leakage; the first seal 113 can be operated in a wind pressure range of 1500Pa to 2500Pa without leakage.

[0073] As can be seen from the above description, the design further optimizes the surface structure of the first profile frame 111 and the second profile frame 211, as well as the structural details of each seal, to ensure that the contact surface between the first profile frame 111 and the second seal 213, as well as the contact surface between the second profile frame 211 and the first seal 113 are all serrated surfaces, which can indirectly increase the complexity of the formed sealing surface, thereby preventing the exchange and circulation of internal and external gases; because the door body 1 and the door frame 2 are sliding door structures, the contact surface between the first profile frame 111 and the third seal 215 is ensured to be a smooth surface, which can reduce the friction between the third seal 215 and the first profile frame 111, so as to avoid damage to the third seal 215 due to repeated opening and closing actions; at the same time, it is ensured that the second seal 213 and the third seal 215 are both hollow structures, which can improve the deformation capacity of the second seal 213 and the third seal 215, so as to better eliminate the gap between the door body 1 and the door frame 2, thereby effectively improving the overall sealing.

[0074] Furthermore, the lengths of the first breaking bridge member 112 and the second breaking bridge member 212 in the thickness direction of the door body 1 are both 30 mm to 40 mm. Figure 1 Preferably, the lengths of the first breaking bridge member 112 and the second breaking bridge member 212 in the thickness direction of the door body 1 may be 35 mm to 40 mm.

[0075] From the above description, it can be seen that the design has made specific improvements to the size requirements of the first thermally broken bridge member 112 and the second thermally broken bridge member 212. When the thickness of the door body 1 and the thickness of the door frame 2 are determined, the sizes of the first thermally broken bridge member 112 and the second thermally broken bridge member 212 are increased as much as possible, which can effectively increase the distance of heat transfer, thereby avoiding the problem of heat exchange between the internal and external environments, and further improving the overall thermal insulation.

[0076] Furthermore, reinforcement members 3 are provided inside the door body 1 and inside the door frame 2 .

[0077] From the above description, it can be seen that the reinforcement 3 can improve the deformation resistance of the door body 1 and the door frame 2, so that the door body 1 and the door frame 2 can maintain stability under high wind pressure conditions, thereby ensuring the working reliability of the air handling device.

[0078] Furthermore, a door lock 4 is also provided on the door body 1 .

[0079] It can be seen from the above description that the door lock 4 can play a fixing and locking role after the door body 1 and the door frame 2 are closed, ensuring that the sealing components can maintain a tight fit, thereby effectively ensuring the overall sealing.

[0080] The air conditioning box inspection door with a multiple sealing structure of the utility model can assist the air processing work of the air conditioning box.

[0081] Please refer to Figures 1 to 3 , Embodiment 1 of the present utility model is:

[0082] An air conditioning box inspection door with a multiple sealing structure comprises a door body 1, a door frame 2 and a door lock 4, wherein the door body 1 is provided with a first sealing assembly 11; the door frame 2 is provided with a second sealing assembly 21; the first sealing assembly 11 comprises a first profile frame 111, a first broken bridge 112 and a first sealing assembly 113 connected in sequence; the first broken bridge 112 is connected to the door body 1 through the first profile frame 111; the second sealing assembly 21 comprises a second profile frame 211, a second broken bridge 212 and a first sealing assembly 113 connected in sequence Two sealing members 213; the second thermal break member 212 is connected to the door frame 2 through the second profile frame 211; when the door body 1 and the door frame 2 are locked, the first sealing member 113 conflicts with the second profile frame 211, and the second sealing member 213 conflicts with the first profile frame 111 to form a sealing structure; reinforcement members 3 are provided inside the door body 1 and inside the door frame 2; a door lock 4 is also provided on the door body 1; the lengths of the first thermal break member 112 and the second thermal break member 212 in the thickness direction of the door body 1 are both 40 mm.

[0083] The door body 1 and the door frame 2 are a sliding door structure; when the door body 1 and the door frame 2 are locked, the first sealing member 113 and the second profile frame 211 constitute a first sealing surface, and the second sealing member 213 and the first profile frame 111 constitute a second sealing surface; in the projection of the door body 1 in the height direction, the first sealing surface and the second sealing surface are both arranged at an angle to the moving direction of the door body 1, and the angle between the first sealing surface and the moving direction of the door body 1 and the angle between the second sealing surface and the moving direction of the door body 1 are both 45°.

[0084] The second sealing assembly 21 also includes a third profile frame 214 and a third sealing member 215; the third sealing member 215 is connected to the second thermal break member 212 through the third profile frame 214; when the door body 1 and the door frame 2 are locked, the third sealing member 215 and the first profile frame 111 are in conflict with each other; the third sealing member 215 and the first profile frame 111 constitute a third sealing surface; in the projection of the door body 1 in the height direction, the third sealing surface is parallel to the moving direction of the door body 1.

[0085] The second seal 213 and the third seal 215 are both hollow structures; the sealing end of the first seal 113 is a serrated structure; the contact surface between the first profile frame 111 and the second seal 213, and the contact surface between the second profile frame 211 and the first seal 113 are both toothed surfaces; the contact surface between the first profile frame 111 and the third seal 215 is a smooth surface.

[0086] The working principle of the utility model is: by pulling the door body 1 to move toward the door frame 2, the door body 1 drives the first sealing component 11 to gradually approach the second sealing component 21 until the first sealing member 113 and the second profile frame 211 are in conflict with each other, the second sealing member 213 and the first profile frame 111 are in conflict with each other, and after the third sealing member 215 and the first profile frame 111 are in conflict with each other, the door lock 4 is used to lock the door body 1 and the door frame 2, so that the closing work of the door body 1 and the door frame 2 can be completed efficiently, and the air tightness and thermal insulation of the door body 1 and the door frame 2 can be ensured at the same time.

[0087] In summary, the utility model provides an air-conditioning box maintenance, which can ensure the sealing of the door body and the door frame after being locked by respectively arranging the first sealing component and the second sealing component on the door body and the door frame; because the thermal conductivity coefficient of metal materials is large, the sealing end of the first sealing component and the sealing end of the second sealing component are spaced apart in the thickness direction of the door body, which can avoid the direct contact of the sealing ends and promote the heat transfer between the internal and external environments; compared with the existing air-conditioning box maintenance door, it can improve the overall sealing and thermal insulation from the gas flow path and heat blocking method, thereby ensuring that the components inside the air-conditioning box can work smoothly under stable working conditions, and because corresponding reinforcement parts are added to the inner wall of the door body and the door frame, the overall deformation resistance can be improved, and then the corresponding air treatment work can be completed under high wind pressure conditions.

[0088] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An air conditioning box inspection door with a multiple sealing structure, comprising a door body and a door frame, characterized in that: The door body is provided with a first sealing assembly; The door frame is provided with a second sealing assembly; The sealing end of the first sealing component and the sealing end of the second sealing component are spaced apart in the thickness direction of the door body; When the door body and the door frame are locked, the first sealing component and the second sealing component are in conflict with each other to form a sealing structure; The first sealing assembly comprises a first profile frame, a first thermal break member and a first sealing member which are connected in sequence; The first thermal break member is connected to the door body via a first profile frame; The second sealing assembly comprises a second profile frame, a second thermal break member and a second sealing member which are connected in sequence; The second thermal break member is connected to the door frame via a second profile frame; When the door body and the door frame are locked, the first sealing member conflicts with the second profile frame, and the second sealing member conflicts with the first profile frame.

2. The air conditioning box inspection door with a multiple sealing structure according to claim 1 is characterized in that: The door body and door frame are sliding door structures; When the door body and the door frame are locked, the first sealing member and the second profile frame form a first sealing surface, and the second sealing member and the first profile frame form a second sealing surface; In the projection of the door body in the height direction, the first sealing surface and the second sealing surface are both arranged at an angle with the moving direction of the door body.

3. The air conditioning box inspection door with a multiple sealing structure according to claim 2 is characterized in that: The second sealing assembly also includes a third profile frame and a third sealing member; The third sealing member is connected to the second thermally-insulated bridge member via a third profile frame; When the door body and the door frame are locked, the third sealing member and the first profile frame are in conflict with each other.

4. The air conditioning box inspection door with a multiple sealing structure according to claim 3 is characterized in that: When the door body and the door frame are locked, the third sealing member and the first profile frame form a third sealing surface; In the projection of the door body in the height direction, the third sealing surface and the moving direction of the door body are parallel to each other.

5. The air conditioning box inspection door with a multiple sealing structure according to claim 4 is characterized in that: The second sealing member and the third sealing member are both hollow structures; The sealing end of the first sealing member is a serrated structure.

6. The air conditioning box inspection door with a multiple sealing structure according to claim 4 is characterized in that: The contact surface between the first profile frame and the second sealing member, and the contact surface between the second profile frame and the first sealing member are both toothed surfaces; The contact surface between the first profile frame and the third sealing member is a smooth surface.

7. The air conditioning box inspection door with a multiple sealing structure according to claim 1 is characterized in that: The lengths of the first thermal break member and the second thermal break member in the door body thickness direction are both 30 mm to 40 mm.

8. The air conditioning box inspection door with a multiple sealing structure according to claim 1 is characterized in that: The interior of the door body and the interior of the door frame are both provided with reinforcement pieces.

9. The air conditioning box inspection door with a multiple sealing structure according to claim 1 is characterized in that: The door body is also provided with a door lock.

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