Clamping assembly type air conditioner access door and mounting structure thereof

Abstract

The utility model discloses a clamping assembly type air conditioner access door and a mounting structure thereof, the clamping assembly type air conditioner access door comprises a door frame and a door leaf, the door frame comprises an outer frame, a buckle body and an inner frame; the outer frame, the buckle body and the inner frame are all of a square ring structure. The inner frame and the outer frame are oppositely arranged; the buckle body is arranged between the inner frame and the outer frame to form a door frame, a concave clamping opening is reserved on the periphery of the outer periphery of the door frame, a door leaf flange is reserved on the periphery of the inner periphery of the door frame, and the inner frame and the outer frame are movably connected with the buckle body in an inserted mode; or the door frame comprises an outer frame and an inner frame; the inner frame and the outer frame are oppositely arranged and movably connected together in an inserted mode to form a door frame with a concave clamping opening reserved in the periphery of the outer periphery and a door leaf flange reserved in the periphery of the inner periphery. The door leaf is hinged to the outer frame, and in the closed state, the periphery of the door leaf is attached to the door leaf blocking edge. The air conditioner cabinet is easy to install and operate, welding or screw connection is not needed, the pressure resistance is high, the number of different parts is small, and the inventory pressure and the cost pressure are reduced.

Description

Technical Field

[0001] The utility model relates to a clamping assembled air-conditioning maintenance door and a mounting structure thereof, belonging to the technical field of air-conditioning maintenance doors. Background Art

[0002] The inspection door on the air-conditioning box is mainly set to facilitate the inspection of the air-conditioning. When the air-conditioning fails, the maintenance personnel can directly open the inspection door to repair the air-conditioning.

[0003] The air conditioner inspection door includes a door frame and a door leaf. Most existing door frames are made of metal. When installing, the four corners need to be welded, and the door frame needs to be installed on the inspection door installation port on the air conditioner box by screws or welding. This will damage the air conditioner box body and affect the appearance. In addition, the fixing screws are exposed and are easily rusted due to long-term contact with humid and cold air, which has disadvantages for appearance and maintenance and disassembly. At the same time, the materials used on each side of the air conditioner box include a panel layer, a filling layer (foaming material) and a back plate layer in the thickness direction. The thickness of the panel layer and the back plate layer are both relatively thin, about 0.5mm, and there is a pressure difference between the air conditioner box and the outside atmospheric pressure. If the door frame of the inspection door is connected and fixed to the air conditioner box body by screws, the bite force between the filling layer and the screws is very small, and the bite force between the panel layer and the back plate layer and the screws is very limited. Under the action of positive pressure and negative pressure, the screws are easy to slip off; if welding is used, due to the limited welding sites, when the pressure is high, the stability is also difficult to guarantee. For example, the patent with application number 202010647361.0 discloses a leak-proof exhaust gas treatment equipment inspection door. The door frame is welded around the inspection door opening. Not only does it have the aforementioned problems, but it also has low installation efficiency, consumes a lot of manpower, and has high operating requirements for technicians. There are also risks in the consistency control of the product's appearance and quality. At the same time, there are many different parts with different specifications. Different parts need to be prepared for different specifications. The versatility of parts is poor, which increases inventory pressure and cost pressure. Utility Model Content

[0004] The utility model provides a clamp-assembled air-conditioning maintenance door, which is simple to install, easy to operate, and highly efficient. It has low operating requirements for technical personnel and requires little manpower. It can be installed by one person. It does not need to be welded or connected to the air-conditioning box by screws, so it will not cause damage to the air-conditioning box. It has strong pressure resistance, and the connection with the air-conditioning box will become tighter and tighter under positive or negative pressure. There are few difference parts, which reduces inventory pressure and cost pressure.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows:

[0006] A clamping assembled air conditioner inspection door comprises a door frame and a door leaf, wherein the door frame comprises an outer frame, a buckle body and an inner frame; the outer frame, the buckle body and the inner frame are all square ring structures; the inner frame and the outer frame are arranged opposite to each other; the buckle body is arranged between the inner frame and the outer frame to form a door frame with a concave snap-fitting opening along the outer periphery and a door leaf retaining edge along the inner periphery, and the inner frame, the outer frame and the buckle body are all movably plugged;

[0007] Alternatively, the door frame includes an outer frame and an inner frame; the inner frame and the outer frame are arranged opposite to each other and movably plugged together to form a door frame with a concave snap-fitting opening along the outer periphery and a door leaf retaining edge along the inner periphery;

[0008] The door leaf is hinged on the outer frame. In the closed state, the periphery of the door leaf fits on the door leaf retaining edge.

[0009] The above-mentioned clamp-assembled air-conditioning maintenance door has a simple structure and is easy to install. It can be stably engaged on the installation port of the air-conditioning box without welding, and both the outside and the inside will be more closely combined with the air-conditioning box under the action of pressure; the parts are highly versatile, which reduces the company's inventory pressure and cost pressure.

[0010] As one of the preferred implementation schemes, when the door frame includes an outer frame, a buckle body and an inner frame:

[0011] A first square tube is provided along the inner periphery of the outer frame on the side facing the inner frame, the portion between the first square tube and the outer periphery of the outer frame is an outer clamping edge of the concave clamping opening, and a first clamping groove is provided on the first square tube;

[0012] A second square tube is provided along the inner periphery of the inner frame on one side facing the outer frame, the portion between the second square tube and the outer periphery of the inner frame is the inner clamping edge of the concave clamping opening, and clamping convex edges are provided on both sides of the second square tube;

[0013] The buckle body includes a third-party tube and a fourth-party tube, the third-party tube is used as a door leaf retaining edge, the fourth-party tube is arranged on the outer periphery of the third-party tube, a second clamping groove is arranged on a side of the fourth-party tube adjacent to the outer frame, and a third clamping groove is arranged on a side of the fourth-party tube adjacent to the inner frame;

[0014] The first card slot matches with the second card slot and is movably connected; the third card slot matches with the second square tube and the engaging convex ridge and is movably connected.

[0015] The above-mentioned first card slot is engaged with the outer side of the second card slot, the third card slot is engaged with the outer side of the second square tube, and the inner side of the third card slot matches the outer side of the second square tube, the third card slot completely wraps the side surface of the second square tube, and the outer card edge of the concave card slot, the side surface of the first square tube, the outer side of the first card slot, the side surface of the fourth square tube, the side surface of the third card slot and the inner card edge of the concave card slot constitute a concave card slot; the concave bottom of the concave card slot is a plane structure, that is, the side surface of the first square tube, the outer side of the first card slot, the side surface of the fourth square tube and the side surface of the third card slot together constitute a complete plane, and the plane structure is conducive to fitting with the installation port.

[0016] The above structure does not require welding during installation, is simple and convenient to operate, has high efficiency, does not require high technical personnel, does not require special training, and can be installed by one person. For different thickness specifications, only the thickness of the buckle body needs to be adjusted, and the outer frame and the inner frame can be universal.

[0017] As another preferred implementation, when the door frame includes an outer frame and an inner frame:

[0018] A fifth square tube is provided along the inner periphery of the outer frame on the side facing the inner frame, the portion between the fifth square tube and the outer periphery of the outer frame is an outer clamping edge of a concave clamping opening, and a fifth clamping groove is provided on the fifth square tube;

[0019] A sixth square tube is provided along the inner periphery of the inner frame on a side facing the outer frame, the portion between the sixth square tube and the outer periphery of the inner frame is an inner clamping edge of the concave clamping opening, and a sixth clamping groove is provided on the sixth square tube; a seventh square tube is provided on the inner periphery of the sixth square tube, and the seventh square tube serves as a door leaf retaining edge;

[0020] The fifth card slot and the sixth card slot match each other and are movably plugged in. The outer card edge of the concave card opening, the fifth square tube side surface, the sixth square tube side surface and the inner card edge of the concave card opening form a concave card opening.

[0021] This solution requires only two matching parts for the door frame, which simplifies operation and improves efficiency while reducing parts and lowering production costs.

[0022] The fifth clamping slot is clamped on the outside of the sixth clamping slot, and the outer clamping edge of the concave clamping opening, the side surface of the fifth square tube, the side surface of the fifth clamping slot, the side surface of the sixth square tube and the inner clamping edge of the concave clamping opening form a concave clamping opening. The concave bottom of the concave clamping opening is a plane structure, that is, the side surface of the fifth square tube, the side surface of the fifth clamping slot and the side surface of the sixth square tube together form a complete plane, and the plane structure is conducive to fitting with the installation opening.

[0023] In order to improve the structural strength and stability of the air conditioner maintenance door, when the door frame includes an outer frame, a buckle body and an inner frame, a metal strip placement groove is provided on the first square tube, and a metal strip is inserted into the metal strip placement groove; when the door frame includes an outer frame and an inner frame, a metal strip placement groove is provided on the fifth square tube, and a metal strip is inserted into the metal strip placement groove. The material used for the metal strip is galvanized sheet. The metal strip and the metal strip placement groove match each other, that is, the two can form a stable matching relationship.

[0024] In order to facilitate production and improve adaptability, when the door frame includes an outer frame, a buckle body and an inner frame: the door frame also includes four L-shaped connection angles; the outer frame, the buckle body and the inner frame are all spliced ​​together by four sides, and the four L-shaped connection angles are respectively arranged at the four corners of the splicing, and the two sides of the L-shaped connection angle are respectively inserted into the two adjacent first square tubes, or the two sides of the L-shaped connection angle are respectively inserted into the two adjacent second square tubes, or the two sides of the L-shaped connection angle are respectively inserted into the two adjacent third square tubes, or the two sides of the L-shaped connection angle are respectively inserted into the two adjacent fourth square tubes, and the L-shaped connection angle matches the inner side of the square tube. In this way, when producing, the outer frame, the buckle body and the inner frame are prepared into strips according to the structural requirements, and then cut to the required length according to the needs, which is flexible and convenient. When it comes to different thickness specifications, it is only necessary to adjust the thickness of the third tube and / or the fourth square tube on the buckle body, and the outer frame, the inner frame, etc. can be shared. At the four corners, the outer frame, the buckle body and the inner frame are all beveled, and the adjacent two sides can be spliced ​​to form a complete right angle. The setting of the L-shaped connection angle facilitates assembly and ensures the stability of the device.

[0025] In order to facilitate production and improve adaptability, as another implementation scheme, when the door frame includes an outer frame and an inner frame: the door frame also includes four L-shaped connection angles; the outer frame and the inner frame are both formed by four sides being spliced ​​together, and the four L-shaped connection angles are respectively arranged at the four corners of the splicing, and the two sides of the L-shaped connection angle are respectively inserted into the two adjacent fifth square tubes, or the two sides of the L-shaped connection angle are respectively inserted into the two adjacent sixth square tubes, or the two sides of the L-shaped connection angle are respectively inserted into the two adjacent seventh square tubes, and the L-shaped connection angle matches the inner side of the square tube. In this way, when producing, the outer frame and the inner frame are prepared into strips according to the structural requirements, and then cut to the required length as needed, which is flexible and convenient. When it comes to different thickness specifications, it is only necessary to adjust the thickness of the sixth square tube and / or the seventh square tube on the inner frame. At the four corners, the outer frame and the inner frame are all beveled, and the adjacent two sides can be spliced ​​to form a complete right angle. The setting of the L-shaped connection angle facilitates assembly and ensures the stability of the device.

[0026] In order to further improve the stability of the device, a convex ridge is provided on the outer side of the L-shaped connection angle to increase friction.

[0027] In order to meet general production needs, the single side length of the L-shaped connecting angle is 60 to 70 mm.

[0028] In order to further improve the sealing performance of the air conditioner inspection door, a sealing pad is provided along the periphery of the door leaf, so that a sealing fit is formed between the periphery of the door leaf and the door leaf retaining edge in the closed state; and two or more convex ridges are provided along the periphery on the side of the door leaf retaining edge that contacts the door leaf. This can further improve the sealing performance of the air conditioner inspection door in the closed state.

[0029] The door frame of the present application can be made of materials such as aluminum-plastic or plastic-steel.

[0030] The door leaf of the present application can be provided with two door handles with locks, and the structure of the handles can be made by using the existing technology.

[0031] In order to protect the hinge structure, the door leaf is connected to the outer frame through the hinge, and a transparent protective cover is provided on the outer side of the hinge on the door leaf.

[0032] The mounting structure of the clamp-assembled air conditioner inspection door comprises an air conditioner box, a mounting opening of the inspection door is left on the air conditioner box, a concave snap-fitting opening of the door frame is snap-fitted on the mounting opening along the periphery (that is, the periphery of the mounting opening is located in the concave snap-fitting opening), and the outer frame, the buckle body, and the inner frame are connected together by mechanical screws, or the outer frame and the inner frame are connected together by mechanical screws. The mechanical screws of the present application do not need to pass through the air conditioner box, will not damage the air conditioner box, and are simple and stable.

[0033] In order to extend the service life, the mechanical screw cap is covered with an anti-rust cap. The outer color of the anti-rust cap is consistent with the outer frame and inner frame, which is beautiful and rust-proof.

[0034] In order to improve the stability of the structure, when the door frame includes an outer frame, a buckle body and an inner frame, the outer frame, the metal strip, the buckle body and the inner frame are connected together by mechanical screws; when the door frame includes an outer frame and an inner frame, the outer frame, the metal strip and the inner frame are connected together by mechanical screws.

[0035] The technologies not mentioned in this utility model are all referred to the prior art.

[0036] The utility model clamping assembled air conditioner maintenance door has the following significant improvements:

[0037] 1. It has a fool-proof and automatic guiding structure, which eliminates the need for precise positioning during assembly. The frame corner hot-melt welding mode is changed to the connector fastening mode to improve work efficiency.

[0038] 2. Simplified production and installation requirements, no welding is required, simple operation, reduced operating requirements for technical personnel, improved consistency of installation quality and high installation efficiency, while reducing 40% of actual production manpower requirements. Product to client assembly can also be changed from multiple people working together to a single person independently.

[0039] 3. Maximize the sharing of materials, that is, when the specifications change, only a few different parts need to be replaced. For different thickness requirements, only the thickness of the buckle body needs to be changed, and the rest of the materials can be shared. The parts are highly versatile, reducing inventory pressure and cost pressure. When the length and width specifications change, automated equipment can be introduced for rapid adjustment.

[0040] 4. The original method of fixing the thin plate with screws is changed to the front and rear frame clamping method, which will not cause any damage to the air-conditioning box panel. It is resistant to positive and negative pressure and has high strength. Under the drive of positive and negative pressure, the connection between the door frame and the air-conditioning box will become tighter and firmer.

[0041] 5. A groove is reserved for placing the metal strip. After the metal strip is inserted, the screws and the metal strip are locked to increase the firmness of the door.

[0042] 6. It can better combine with the existing automated production model to improve quality consistency.

[0043] 7. The joints are clean, tidy and beautiful; the structure is stable and firm, with no exposed screws, good temperature resistance and strong moisture resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a structural schematic diagram of the clamp-assembled air-conditioning maintenance door of the utility model;

[0045] Figure 2 for Figure 1 Left view of

[0046] Figure 3 for Figure 1 Right view of;

[0047] Figure 4 for Figure 1 Bottom view of

[0048] Figure 5 for Figure 1 A top view of

[0049] Figure 6 for Figure 1 Exploded diagram of

[0050] Figure 7 It is a structural diagram of the inner frame;

[0051] Figure 8 is a structural schematic diagram of the outer frame;

[0052] Fig. 9 It is a schematic diagram of the combination of the inner frame and the outer frame and the coordination of the door leaf;

[0053] Fig.10 It is a structural schematic diagram of an L-shaped connection angle;

[0054] In the figure, 1 is a door frame, 11 is an outer frame, 111 is a fifth square tube, 112 is a fifth slot, 113 is a metal strip placement slot, 12 is an inner frame, 121 is a sixth square tube, 122 is a sixth slot, 123 is a seventh square tube (door leaf retaining edge), 13 is a concave snap-fitting opening, 131 is an outer snap-fitting edge of the concave snap-fitting opening, 132 is an inner snap-fitting edge of the concave snap-fitting opening, 14 is an L-shaped connecting angle, 2 is a door leaf, 21 is a handle, 3 is a hinge, and 31 is a transparent protective cover. DETAILED DESCRIPTION

[0055] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with embodiments, but the content of the present invention is not limited to the following embodiments.

[0056] The directional words such as up and down, left and right, horizontal, vertical, inside and outside, etc. in this application are all based on the relative orientation or position relationship shown in the drawings, and are only for the convenience of describing this application, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as an absolute limitation on this application.

[0057] Example 1

[0058] like Figure 1-Figure 5 As shown, a clamping assembled air conditioning inspection door includes a door frame and a door leaf, the door frame includes an outer frame and an inner frame; the inner frame and the outer frame are arranged opposite to each other and movably plugged together to form a door frame with a concave snap-fitting opening along the outer periphery and a door leaf retaining edge along the inner periphery; the door leaf is hinged to the outer frame through a hinge, and a transparent protective cover is provided on the outer side of the hinge. In the closed state, the periphery of the door leaf fits on the door leaf retaining edge, and a sealing gasket is provided along the periphery of the door leaf so that a sealing fit is formed between the periphery of the door leaf and the door leaf retaining edge in the closed state; the side of the door leaf retaining edge that contacts the door leaf is provided with more than two convex ridges arranged along the periphery. Two lockable door handles are provided on the door leaf.

[0059] Example 2

[0060] On the basis of Example 1, the following improvements were made: Figure 6-9 As shown, a fifth square tube is provided along the inner circumference of the outer frame on the side facing the inner frame, the portion between the fifth square tube and the outer circumference of the outer frame is the outer clamping edge of the concave clamping opening, and a fifth clamping groove is provided on the fifth square tube; a sixth square tube is provided along the inner circumference of the inner frame on the side facing the outer frame, the portion between the sixth square tube and the outer circumference of the inner frame is the inner clamping edge of the concave clamping opening, and a sixth clamping groove is provided on the sixth square tube; a seventh square tube is provided on the inner circumference of the sixth square tube, and the seventh square tube serves as a door leaf retaining edge; the fifth clamping groove and the sixth clamping groove match each other and are movably connected, wherein the fifth clamping groove is clamped on the outside of the sixth clamping groove, and the outer clamping edge of the concave clamping opening, the side surface of the fifth square tube, the side surface of the fifth clamping groove, the side surface of the sixth square tube and the inner clamping edge of the concave clamping opening constitute a concave clamping opening. As shown Fig. 9 As shown, the concave bottom of the concave engaging opening is a plane structure, that is, the fifth square tube side, the fifth slot side and the sixth square tube side together form a complete plane, and the plane structure is conducive to fitting with the installation opening.

[0061] Example 3

[0062] On the basis of Example 2, the following improvements were made: Figure 8 As shown, the fifth square tube is provided with a metal strip placement groove, in which a metal strip is inserted, and the material used for the metal strip is a galvanized sheet.

[0063] Example 4

[0064] On the basis of Example 3, the following improvements were made: Figure 6 and Fig.10 As shown, the door frame also includes four L-shaped connection angles; the outer frame and the inner frame are both formed by four sides being spliced ​​together, and the four L-shaped connection angles are respectively arranged at the four corners of the splicing, and the two sides of the L-shaped connection angle are respectively inserted into the two adjacent fifth square tubes, or the two sides of the L-shaped connection angle are respectively inserted into the two adjacent sixth square tubes, or the two sides of the L-shaped connection angle are respectively inserted into the two adjacent seventh square tubes, and the L-shaped connection angle matches the inner side of the square tube. The outer side of the L-shaped connection angle is provided with a convex ridge, and the single side length of the L-shaped connection angle is 66mm. Description: Figure 6 The L-shaped connection angle is omitted.

[0065] The mounting structure of the clamp-assembled air conditioner inspection door comprises an air conditioner box, a mounting opening of the inspection door is reserved on the air conditioner box, a concave snap-fit ​​opening of the door frame is snap-fitted on the mounting opening along the periphery, and the outer frame, the metal strip and the inner frame are connected together by mechanical screws. In order to extend the service life, the mechanical screw cap is covered with a rust-proof cap.

[0066] Example 5

[0067] A clamping assembled air conditioning inspection door comprises a door frame and a door leaf, wherein the door frame comprises an outer frame, a buckle body and an inner frame; the outer frame, the buckle body and the inner frame are all square ring structures; the inner frame and the outer frame are arranged opposite to each other; the buckle body is arranged between the inner frame and the outer frame, forming a door frame with a concave snap-fitting opening along the outer periphery and a door leaf retaining edge along the inner periphery, and the inner frame, the outer frame and the buckle body are all movably connected; the door leaf is hinged to the outer frame through a hinge, and a transparent protective cover is arranged on the outer side of the hinge; in the closed state, the periphery of the door leaf is attached to the door leaf retaining edge, and a sealing gasket is arranged along the periphery of the door leaf, so that the periphery of the door leaf and the door leaf retaining edge are sealed in the closed state; the side of the door leaf retaining edge that contacts the door leaf is provided with more than two convex ridges arranged along the periphery. Two lockable door handles are arranged on the door leaf.

[0068] Example 6

[0069] On the basis of Example 5, the following improvements are further made: a first square tube is provided along the inner periphery of the outer frame on the side facing the inner frame, the portion between the first square tube and the outer periphery of the outer frame is the outer clamping edge of the concave clamping opening, and a first clamping groove is provided on the first square tube; a second square tube is provided along the inner periphery of the inner frame on the side facing the outer frame, the portion between the second square tube and the outer periphery of the inner frame is the inner clamping edge of the concave clamping opening, and clamping convex ridges are provided on both sides of the second square tube; the buckle body includes a third tube and a fourth square tube, the third tube serves as a door leaf retaining edge, The fourth square tube is arranged on the outer periphery of the third square tube, and a second card slot is arranged on one side of the fourth square tube adjacent to the outer frame, and a third card slot is arranged on one side of the fourth square tube adjacent to the inner frame; the first card slot matches the second card slot and is movably connected (the first card slot is engaged on the outer side of the second card slot); the third card slot matches the second square tube and the engaging ridge and is movably connected (the third card slot is engaged on the outer side of the second square tube, and the inner side of the third card slot matches the outer side of the second square tube, and the third card slot completely wraps the side of the second square tube). The outer card edge of the concave engaging opening, the side of the first square tube, the outer side of the first card slot, the side of the fourth square tube, the side of the third card slot and the inner card edge of the concave engaging opening constitute a concave engaging opening; the concave bottom of the concave engaging opening is a plane structure, that is, the side of the first square tube, the outer side of the first card slot, the side of the fourth square tube and the side of the third card slot together constitute a complete plane, and the plane structure is conducive to fitting with the installation opening. The above structure does not require welding during installation, is simple and convenient to operate, has high efficiency, does not require high technical personnel, does not require special training, and can be installed by one person. For different thickness specifications, only the thickness of the buckle body needs to be adjusted, and the outer frame and the inner frame can be universal.

[0070] Example 7

[0071] On the basis of Example 6, the following improvements are further made: a metal strip placement groove is provided on the first square tube, a metal strip is inserted into the metal strip placement groove, and the material used for the metal strip is galvanized sheet.

[0072] Example 8

[0073] On the basis of Example 7, the following improvements are further made: In order to facilitate production and improve adaptability, when the door frame includes an outer frame, a buckle body and an inner frame: the door frame also includes four L-shaped connecting angles; the outer frame, the buckle body and the inner frame are all formed by four sides being spliced ​​together, and the four L-shaped connecting angles are respectively arranged at the four corners of the splicing, and the two sides of the L-shaped connecting angle are respectively inserted into the two adjacent first square tubes, or the two sides of the L-shaped connecting angle are respectively inserted into the two adjacent second square tubes, or the two sides of the L-shaped connecting angle are respectively inserted into the two adjacent third square tubes, or the two sides of the L-shaped connecting angle are respectively inserted into the two adjacent fourth square tubes, and the L-shaped connecting angle matches the inner side of the square tube. The outer side of the L-shaped connecting angle is provided with a convex ridge, and the single side length of the L-shaped connecting angle is 66mm.

[0074] The mounting structure of the clamp-assembled air conditioner inspection door comprises an air conditioner box, a mounting opening of the inspection door is reserved on the air conditioner box, a concave snap-fit ​​opening of the door frame is snap-fitted on the mounting opening along the periphery, and the outer frame, the metal strip, the buckle body and the inner frame are connected together by mechanical screws. In order to extend the service life, the mechanical screw cap is covered with a rust-proof cap.

[0075] In each example, the material used for the door frame is PVC profile.

[0076] It has been verified in practice that the clamp-assembled air-conditioning inspection doors in the above-mentioned examples have fool-proof and automatic guiding structures, so that personnel do not need to accurately position during assembly, and the frame corner hot-melt welding mode is changed to the connector fastening mode to improve work efficiency. It simplifies production and installation requirements, does not require welding, is simple to operate, reduces the operating requirements for technicians, improves the consistency of installation quality and high installation efficiency, and reduces 40% of the actual production demand for manpower. The assembly of products to the client can also be changed from multiple people to a single person. Maximize the sharing of materials, that is, when the specifications are changed, only a few different parts need to be replaced. For different thickness requirements, only the thickness of the buckle body needs to be changed, and the rest of the materials can be shared. The parts are highly versatile, reducing inventory pressure and cost pressure; when the length and width specifications change, automated equipment can be introduced for quick adjustment. Changing from the original method of fixing the screws on the thin plate to the front and rear frame clamping method will not cause any damage to the air-conditioning box panel, is resistant to positive and negative pressure, has high strength, and under the drive of positive and negative pressure, the connection between the door frame and the air-conditioning box will become tighter and firmer. A slot for placing metal strips is reserved. After the metal strips are inserted, the screws and metal strips are locked to improve the firmness of the door. It can better combine with the existing automated production mode to improve quality consistency. The joints are clean, tidy and beautiful; the structure is stable and firm, there are no exposed screws, and it has good temperature resistance and moisture resistance.

Claims

1. A clamping assembled air-conditioning inspection door, comprising a door frame (1) and a door leaf (2), characterized in that: The door frame (1) comprises an outer frame (11), a buckle body and an inner frame (12); the outer frame (11), the buckle body and the inner frame (12) are all square ring structures; the inner frame (12) and the outer frame (11) are arranged opposite to each other; the buckle body is arranged between the inner frame (12) and the outer frame (11), forming a door frame (1) having a concave snap-fitting opening (13) along the outer periphery and a door leaf (2) retaining edge along the inner periphery; the inner frame (12) and the outer frame (11) are all movably connected to the buckle body; Alternatively, the door frame (1) comprises an outer frame (11) and an inner frame (12); the inner frame (12) and the outer frame (11) are arranged opposite to each other and are movably plugged together to form a door frame (1) having a concave snap-fitting opening (13) on the outer periphery and a retaining edge for the door leaf (2) on the inner periphery; The door leaf (2) is hinged on the outer frame (11), and in a closed state, the periphery of the door leaf (2) fits on the retaining edge of the door leaf (2).

2. The clamp-assembled air conditioning inspection door according to claim 1, characterized in that: When the door frame (1) comprises an outer frame (11), a buckle body and an inner frame (12): A first square tube is provided along the inner circumference of the outer frame (11) on a side facing the inner frame (12); the portion between the first square tube and the outer circumference of the outer frame (11) is an outer clamping edge (131) of a concave clamping opening; and a first clamping groove is provided on the first square tube; A second square tube is provided along the inner circumference of the inner frame (12) on a side facing the outer frame (11); the portion between the second square tube and the outer circumference of the inner frame (12) is an inner clamping edge (132) of a concave clamping opening; and clamping ridges are provided on both sides of the second square tube; The buckle body comprises a third-party tube and a fourth-party tube, the third-party tube serving as a retaining edge of the door leaf (2), the fourth-party tube being arranged on the outer periphery of the third-party tube, a second clamping groove being arranged on a surface of the fourth-party tube adjacent to the outer frame (11), and a third clamping groove being arranged on a surface of the fourth-party tube adjacent to the inner frame (12); The first card slot and the second card slot match each other and are movably plugged in; the third card slot and the second square tube and the card convex ridge match each other and are movably plugged in; the outer card edge (131) of the concave card opening, the side surface of the first square tube, the side surface of the fourth square tube, the side surface of the second square tube and the inner card edge (132) of the concave card opening form a concave card opening (13); When the door frame (1) includes an outer frame (11) and an inner frame (12): A fifth square tube (111) is provided along the inner circumference of the outer frame (11) on a side facing the inner frame (12); the portion between the fifth square tube (111) and the outer circumference of the outer frame (11) is an outer clamping edge (131) of a concave clamping opening; and a fifth clamping groove (112) is provided on the fifth square tube (111); A sixth square tube (121) is provided along the inner periphery of the inner frame (12) on a side facing the outer frame (11); the portion between the sixth square tube (121) and the outer periphery of the inner frame (12) is an inner clamping edge (132) of a concave clamping opening; a sixth clamping groove (122) is provided on the sixth square tube (121); a seventh square tube (123) is provided on the inner periphery of the sixth square tube (121), and the seventh square tube (123) serves as a retaining edge of the door leaf (2); The fifth clamping slot (112) and the sixth clamping slot (122) match each other and are movably plugged in, and the outer clamping edge (131) of the concave clamping opening, the side surface of the fifth square tube (111), the side surface of the sixth square tube (121) and the inner clamping edge (132) of the concave clamping opening form a concave clamping opening (13).

3. The clamp-assembled air conditioning inspection door according to claim 2, characterized in that: When the door frame (1) comprises an outer frame (11), a buckle body and an inner frame (12), a metal strip placement groove (113) is provided on the first square tube, and a metal strip is inserted into the metal strip placement groove (113); when the door frame (1) comprises an outer frame (11) and an inner frame (12), a metal strip placement groove (113) is provided on the fifth square tube (111), and a metal strip is inserted into the metal strip placement groove (113).

4. The clamp-assembled air conditioning inspection door according to claim 2 or 3, characterized in that: When the door frame (1) comprises an outer frame (11), a buckle body and an inner frame (12): the door frame (1) further comprises four L-shaped connecting corners (14); the outer frame (11), the buckle body and the inner frame (12) are all formed by movably splicing four sides, the four L-shaped connecting corners (14) are respectively arranged at the four corners of the splicing, and the two sides of the L-shaped connecting corner (14) are respectively inserted into two adjacent first square tubes, or the two sides of the L-shaped connecting corner (14) are respectively inserted into two adjacent second square tubes, or the two sides of the L-shaped connecting corner (14) are respectively inserted into two adjacent second square tubes. The three-square tube, or the two sides of the L-shaped connecting angle (14) are respectively inserted into the two adjacent fourth square tubes, and the L-shaped connecting angle (14) matches the inner side of the square tube. When different thickness specifications are required, only the thickness of the third square tube and / or the fourth square tube on the buckle body needs to be adjusted. The outer frame (11) and the inner frame (12) are shared. When assembling, the outer frame (11), the buckle body and the inner frame (12) are cut to the required length, and the two ends of the outer frame (11), the buckle body and the inner frame (12) are cut to be beveled so that the adjacent two sides are spliced ​​to form a complete right angle; When the door frame (1) includes an outer frame (11) and an inner frame (12): the door frame (1) further includes four L-shaped connecting corners (14); the outer frame (11) and the inner frame (12) are both formed by movably splicing four sides, the four L-shaped connecting corners (14) are respectively arranged at the four corners of the splicing, and the two sides of the L-shaped connecting corner (14) are respectively inserted into two adjacent fifth square tubes (111), or the two sides of the L-shaped connecting corner (14) are respectively inserted into two adjacent sixth square tubes (121), or the L-shaped connecting corner (14) is ) are respectively inserted into two adjacent seventh square tubes (123), and the L-shaped connecting angle (14) matches the inner side of the square tube. When different thickness specifications are required, only the thickness of the sixth square tube (121) and / or the seventh square tube (123) on the inner frame (12) needs to be adjusted. The outer frame (11) is shared. When assembling, the outer frame (11) and the inner frame (12) are cut to the required length, and both ends of the outer frame (11) and the inner frame (12) are cut to be beveled so that the adjacent two sides are spliced ​​to form a complete right angle.

5. The clamp-assembled air conditioning inspection door according to claim 4, characterized in that: A convex ridge is provided on the outer side of the L-shaped connecting angle (14); the length of a single side of the L-shaped connecting angle (14) is 60-70 mm.

6. The clamp-assembled air-conditioning inspection door according to any one of claims 1 to 3, characterized in that: The door leaf (2) is provided with a sealing pad along the periphery, so that a sealing fit is formed between the periphery of the door leaf (2) and the retaining edge of the door leaf (2) in a closed state; and the retaining edge of the door leaf (2) is provided with two or more convex ridges arranged along the periphery on a side that contacts the door leaf (2).

7. The clamp-assembled air-conditioning inspection door according to any one of claims 1 to 3, characterized in that: The door leaf (2) is connected to the outer frame (11) via a hinge (3), and a transparent protective cover (31) is provided on the outer side of the hinge (3) on the door leaf (2).

8. An installation structure of a clamp-assembled air-conditioning inspection door according to any one of claims 1 to 7, comprising an air-conditioning box, with an inspection door installation opening reserved on the air-conditioning box, characterized in that: The concave snap-fitting opening (13) of the door frame (1) is snap-fitted onto the mounting opening along the periphery, and the outer frame (11), the buckle body, and the inner frame (12) are connected as one by mechanical screws, or the outer frame (11) and the inner frame (12) are connected as one by mechanical screws, and the mechanical screws do not pass through the air conditioner box.

9. The installation structure of the clamp-assembled air-conditioning inspection door according to claim 8, characterized in that: The machine screw cap is covered with a rust-proof cap.

10. The installation structure of the clamp-assembled air-conditioning inspection door according to claim 8 or 9, characterized in that: When the door frame (1) comprises an outer frame (11), a buckle body and an inner frame (12), the outer frame (11), the metal strip, the buckle body and the inner frame (12) are connected together by mechanical screws; when the door frame (1) comprises an outer frame (11) and an inner frame (12), the outer frame (11), the metal strip and the inner frame (12) are connected together by mechanical screws.

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