Air conditioner access door observation mirror convenient to disassemble and assemble and mounting structure thereof

Abstract

The utility model discloses an air conditioner access door observation mirror convenient to disassemble and assemble and an installation structure of the air conditioner access door observation mirror convenient to disassemble and assemble, and the air conditioner access door observation mirror convenient to disassemble and assemble comprises a face frame and a back frame, the surface frame comprises a surface ring and a first mounting ring which are vertically connected and concentric, and a first annular mounting surface is reserved between the first mounting ring and an outer ring of the surface ring; more than two L-shaped clamping grooves are formed in the first mounting ring; more than two positioning pins are arranged on the first annular mounting surface; the back frame comprises a back ring and a second mounting ring which are vertically connected and concentric, and a second annular mounting surface is reserved between the second mounting ring and the outer ring of the back ring; more than two buckles are arranged on the second mounting ring; the number of the buckles is equal to that of the L-shaped clamping grooves, and the buckles correspond to the L-shaped clamping grooves one to one. A dismounting handle is arranged on the back of the back frame; the second mounting ring is inserted into the inner side of the first mounting ring, and the buckles are clamped to the innermost sides of the bottoms of the corresponding L-shaped clamping grooves. The first annular mounting face and the second annular mounting face are each provided with a sealing groove formed in the circumferential direction. The device is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to an observation mirror for an air conditioner inspection door which is easy to disassemble and assemble and a mounting structure thereof, belonging to the technical field of inspection door observation mirrors. Background Art

[0002] The air conditioner fan box is used to install the air conditioner fan. Usually, an inspection door needs to be set on the air conditioner box so that maintenance personnel can directly open the inspection door to maintain and repair the air conditioner.

[0003] In order to facilitate observation, an observation mirror is usually set on the air-conditioning maintenance door. For example, the patent with application number 202222853001.3 discloses an air-conditioning maintenance door with a lock and an observation window for an outdoor unit, including a door frame, a door panel hingedly connected to the inner side of the door frame, the door panel is provided with a viewing window, the door panel is provided with a handle, and the handle is provided with a push-to-unlock structure, which is used to open the door panel. This patent pushes the handle's rotating shaft to slide toward the step shaft, and when it is rotated to a fixed angle, the limit block can be inserted into the limit card slot. At this time, further rotating the handle can drive the step shaft to rotate, and the step shaft drives the locking rod to exit the socket, and the lock can be unlocked. In this way, the inconvenience of carrying keys is overcome, basic protection can be provided, and it is convenient to use. However, this patent adopts a traditional observation window and does not make any improvements to the observation window. For another example, the patent with application number 202020576940.6 discloses an industrial air-conditioning maintenance door, 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 on which the heavy-duty hinges are installed and a second door frame on which a sealing strip is installed, the door panel includes an outer door panel and an inner door panel, the inner door panel is embedded in the outer door panel, and a circle of outer grooves formed at the joint is provided with a sealing strip, and an observation window assembly is provided in the middle of the door panel, the observation window assembly includes tempered glass, glass inlays, glass trims, wall panels and steel rings, the steel rings are provided on the upper part of the door panel, the glass inlays and the wall panels are embedded in the inlay grooves of the glass trims, and the tempered glass is embedded between the glass trims. The above-mentioned device solves the technical problems that the air-conditioning maintenance door in the prior art has poor sealing, causing leakage of cold (hot) air, and increasing the load of the unit, improves the sealing performance of the maintenance door, and reduces the load of the air-conditioning unit. This patent also uses a traditional observation window and does not make improvements to the observation window. Traditional observation mirrors have 6 threaded holes around the face frame and the back frame. When installing, the 6 threaded holes on the face frame need to be aligned with the 6 threaded holes on the back frame, which is difficult to install and inconvenient to disassemble. It is very easy to damage and scrap the face frame and the back frame during disassembly. In addition, since the face frame and the back frame need to align the threaded holes, they are just close together. It is necessary to install a sealing strip not only between the air conditioner maintenance door and the face frame and the back frame, but also between the face frame and the back frame. Utility Model Content

[0004] The utility model provides an observation mirror for an air-conditioning maintenance door which is easy to disassemble and assemble, and a mounting structure thereof. The observation mirror is easy to disassemble and assemble, and will not cause damage or scrapping of a face frame and a back frame during disassembly and assembly. The face frame and the back frame form a cross fit, and have good sealing performance, and there is no need to install a sealing strip between the face frame and the back frame.

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

[0006] An observation mirror for an air conditioner inspection door that is easy to disassemble and assemble, comprising a face frame and a back frame;

[0007] The face frame includes a face ring and a first mounting ring, the first mounting ring is vertically connected to the back of the face ring, the face ring and the first mounting ring are concentrically arranged, and a first annular mounting surface is left between the first mounting ring and the outer ring of the face ring; the first mounting ring is provided with more than two L-shaped grooves distributed along the periphery; the first annular mounting surface is provided with more than two positioning pins or positioning protrusions arranged along the circumferential direction;

[0008] The back frame includes a back ring and a second mounting ring, the second mounting ring is vertically connected to the front of the back ring, the back ring and the second mounting ring are concentrically arranged, and a second annular mounting surface is left between the second mounting ring and the outer ring of the back ring; the second mounting ring is provided with more than two buckles distributed along the periphery; the number of the buckles is equal to the number of the L-shaped slots and corresponds one to one; the back of the back frame is provided with two oppositely arranged disassembly and assembly handles;

[0009] The second mounting ring is inserted into the inner side of the first mounting ring and the buckle is engaged with the innermost side of the corresponding L-shaped slot bottom, so that the face frame and the back frame are movably spliced ​​together; the first annular mounting surface and the second annular mounting surface are both provided with sealing grooves arranged along the circumferential direction.

[0010] During installation, hold the face frame, align the locating pins with the corresponding pin holes, extend the first mounting ring on the face frame into the mounting hole from the front of the air-conditioning inspection door, and insert the locating pins into the corresponding pin holes to position the face frame. The outer wall of the first mounting ring fits with the side wall of the mounting hole, and a sealing strip is provided in the sealing groove on the first annular mounting surface, which is sealed and fitted with the air-conditioning inspection door; then hold the handle on the back frame, align the buckle with the corresponding L-shaped slot, and extend the second mounting ring on the back frame from the back of the air-conditioning inspection door into the inner side of the first mounting ring, and then rotate the back frame so that the buckle is engaged with the innermost side of the bottom of the corresponding L-shaped slot, and the face frame and the back frame are stably and flexibly connected together, and a sealing strip is provided in the sealing groove on the second annular mounting surface, which is sealed and fitted with the air-conditioning inspection door.

[0011] The provision of the positioning pins prevents the face frame from rotating during the installation of the back frame, thereby improving the stability of installation and use.

[0012] The above-mentioned observation mirror for the air conditioner inspection door which is easy to disassemble and assemble can be fixed by the movable cooperation of the face frame and the back frame, which can ensure stability and facilitate disassembly and assembly.

[0013] The above-mentioned direction from front to back is consistent with the direction from outside to inside of the air conditioner maintenance door when in use.

[0014] As common sense, a ring includes an inner ring and an outer ring.

[0015] In order to further improve the stability of the engagement, the L-shaped slot is composed of a vertical slot and a horizontal slot, the top of the horizontal slot is provided with serrations, and the buckle is engaged with the innermost side of the horizontal slot at the bottom of the corresponding L-shaped slot, which can prevent loosening and improve stability.

[0016] In order to meet the stability requirement, two symmetrical positioning pins are provided on the first annular mounting surface to prevent the face frame from rotating during assembly and disassembly.

[0017] The face ring and the first mounting ring of the face frame are an integrally formed injection-molded structure; the back ring and the second mounting ring of the back frame are an integrally formed injection-molded structure.

[0018] The inner ring of the face ring and the inner ring of the back ring are both installed with 3±1mm transparent glass. During preparation, the face frame and the back frame are prepared with corresponding 3±1mm transparent glass and injection molded together.

[0019] In order to better meet the stability requirements, 3 to 5 L-shaped slots are evenly distributed around the periphery of the upper edge of the first mounting ring.

[0020] In order to facilitate disassembly and assembly without affecting the use of the observation mirror, the disassembly and assembly handle is a strip structure and forms an angle of 10 to 30 degrees with the back of the back frame. One end of the disassembly and assembly handle is connected to the edge of the back of the back frame, and the other end is a free end and points to the side away from the center of the back frame.

[0021] In order to facilitate disassembly and assembly without affecting the use of the observation mirror, as another implementation scheme, the disassembly and assembly handle is a table-shaped protruding structure.

[0022] Of course, the disassembly handle can also be designed as a groove structure, etc.

[0023] The disassembly and assembly handle and the back frame are an integrally formed structure.

[0024] The above-mentioned installation structure of the air-conditioning maintenance door observation mirror that is easy to disassemble and assemble is characterized in that a mounting hole is left on the air-conditioning maintenance door, and pin holes or positioning holes that are equal to the number of positioning pins or positioning protrusions and correspond one to one are left on the air-conditioning maintenance door around the mounting hole, the first mounting ring on the face frame extends into the mounting hole from the front of the air-conditioning maintenance door, the positioning pins are inserted into the corresponding pin holes or the positioning protrusions are inserted into the corresponding positioning protrusions, the outer wall of the first mounting ring fits with the side wall of the mounting hole, and the first annular mounting surface fits with the air-conditioning maintenance door; the buckle is aligned with the corresponding L-shaped slot, and the second mounting ring on the back frame is extended from the back of the air-conditioning maintenance door into the inner side of the first mounting ring, and the back frame is rotated so that the buckle is engaged with the innermost side of the bottom of the corresponding L-shaped slot; sealing strips are provided in the sealing grooves on the first annular mounting surface and the second annular mounting surface to form a sealing fit with the air-conditioning maintenance door.

[0025] The installation structure is simple, easy to operate, highly efficient, and easy to disassemble, and will not cause damage or breakage to the face frame and the back frame during assembly and disassembly.

[0026] For particularly harsh environments, in order to further strengthen the environment, the first annular mounting surface can be fixed to the air conditioner access door by 1 to 2 positioning screws to strengthen the positioning.

[0027] The technologies not mentioned in this utility model are all referred to the prior art.

[0028] The utility model provides an observation mirror for an air conditioner inspection door that is easy to disassemble and assemble, and has the following beneficial effects:

[0029] 1) The front frame and the back frame can be installed and fixed by means of movable connection, which can ensure stability and sealing and facilitate disassembly and assembly.

[0030] 2) Inserting the positioning pin into the corresponding pin hole can better ensure stability during installation and use.

[0031] 3) The front frame and back frame will not be damaged or scrapped during disassembly and assembly;

[0032] 4) The face frame and the back frame form a cross fit, with good sealing performance. There is no need to install a sealing strip between the face frame and the back frame, which saves sealing strips and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The structure of the air conditioner inspection door observation mirror that is easy to disassemble and assemble is shown in the figure. Figure 1 ;

[0034] Figure 2 for Figure 1 The structural diagram of the middle face frame;

[0035] Figure 3 for Figure 2 Left view of

[0036] Figure 4 for Figure 2 Right view of;

[0037] Figure 5 for Figure 2 A top view of

[0038] Figure 6 for Figure 1 Schematic diagram of the structure of the middle back frame;

[0039] Figure 7 for Figure 6 Left view of

[0040] Figure 8 for Figure 6 Right view of;

[0041] Fig. 9 for Figure 6 A top view of

[0042] Fig.10 The structure of the air conditioner inspection door observation mirror that is easy to disassemble and assemble is shown in the figure. Figure 2 ;

[0043] Fig.11 for Fig.10 The structural diagram of the middle face frame;

[0044] Fig.12 for Fig.11 Left view of

[0045] Fig.13 for Fig.11 A top view of

[0046] Fig.14 for Fig.10 Schematic diagram of the structure of the middle back frame;

[0047] Fig.15 for Fig.14 A top view of

[0048] In the figure, 1 is a face frame, 11 is a face ring, 12 is a first mounting ring, 13 is an L-shaped slot, 14 is a positioning pin, 15 is a positioning protrusion, 2 is a back frame, 21 is a back ring, 22 is a second mounting ring, 23 is a buckle, and 24 is a disassembly handle. DETAILED DESCRIPTION

[0049] 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.

[0050] In this application, the directional words such as up and down, left and right, horizontal, vertical, top and bottom are based on the attached Figure 4The relative orientation or position relationship shown should not be understood as an absolute limitation to the present application.

[0051] Example 1

[0052] like Figure 1 As shown, an observation mirror for an air conditioner inspection door that is easy to disassemble and assemble comprises a face frame and a back frame;

[0053] like Figure 2-5 As shown, the face frame includes a face ring and a first mounting ring, the first mounting ring is vertically connected to the back of the face ring, the face ring and the first mounting ring are concentrically arranged, and a first annular mounting surface is left between the first mounting ring and the outer ring of the face ring; the first mounting ring is provided with four L-shaped slots evenly distributed along the periphery; the first annular mounting surface is provided with two positioning pins arranged along the circumferential direction;

[0054] like Figure 6-9 As shown, the back frame includes a back ring and a second mounting ring, the second mounting ring is vertically connected to the front of the back ring, the back ring and the second mounting ring are concentrically arranged, and a second annular mounting surface is left between the second mounting ring and the outer ring of the back ring; the second mounting ring is provided with four buckles evenly distributed along the periphery; the buckles correspond to the L-shaped slots one by one; the back of the back frame is provided with two disassembly and assembly handles arranged opposite to each other;

[0055] The second mounting ring is inserted into the inner side of the first mounting ring and the buckle is engaged with the innermost side of the corresponding L-shaped slot bottom, so that the face frame and the back frame are movably spliced ​​together; the first annular mounting surface and the second annular mounting surface are both provided with sealing grooves arranged along the circumferential direction.

[0056] During installation, hold the face frame, align the locating pins with the corresponding pin holes, extend the first mounting ring on the face frame into the mounting hole from the front of the air-conditioning inspection door, and insert the locating pins into the corresponding pin holes to position the face frame. The outer wall of the first mounting ring fits with the side wall of the mounting hole, and a sealing strip is provided in the sealing groove on the first annular mounting surface, which is sealed and fitted with the air-conditioning inspection door; then hold the handle on the back frame, align the buckle with the corresponding L-shaped slot, and extend the second mounting ring on the back frame from the back of the air-conditioning inspection door into the inner side of the first mounting ring, and then rotate the back frame so that the buckle is engaged with the innermost side of the bottom of the corresponding L-shaped slot, and the face frame and the back frame are stably and flexibly connected together, and a sealing strip is provided in the sealing groove on the second annular mounting surface, which is sealed and fitted with the air-conditioning inspection door.

[0057] Example 2

[0058] On the basis of Example 1, the following improvements were made: Figure 4 As shown, in order to further improve the stability of the engagement, the L-shaped slot is composed of a vertical slot and a horizontal slot, the top of the horizontal slot is provided with saw teeth, and the buckle is engaged with the innermost side of the horizontal slot at the bottom of the corresponding L-shaped slot. This can prevent loosening and improve stability.

[0059] Example 3

[0060] The difference from the first embodiment is that in this embodiment, two symmetrical positioning pins are arranged on the first annular mounting surface to prevent the face frame from rotating during assembly and disassembly.

[0061] Example 4

[0062] On the basis of Example 2 or 3, the following improvements are further made: the face ring and the first mounting ring of the face frame are an integrally formed injection molding structure; the back ring and the second mounting ring of the back frame are an integrally formed injection molding structure. 3mm transparent glass is installed on the inner ring of the face ring and the inner ring of the back ring. During preparation, the face frame and the back frame are configured with corresponding 3mm transparent glass and are injection molded together.

[0063] Example 5

[0064] On the basis of Example 4, the following improvements are further made: in order to facilitate disassembly and assembly without affecting the use of the observation mirror, the disassembly and assembly handle is a strip structure and forms an angle of 20° with the back of the back frame, one end of the disassembly and assembly handle is connected to the edge of the back of the back frame, and the other end is a free end and points to the side away from the center of the back frame, and the disassembly and assembly handle and the back frame are an integrally formed structure.

[0065] The installation structure of the observation mirror for the air-conditioning maintenance door that is easy to disassemble and assemble is provided with an installation hole on the air-conditioning maintenance door, and pin holes equal to the number of positioning pins and corresponding to each other are provided on the air-conditioning maintenance door around the installation hole. The first installation ring on the face frame extends into the installation hole from the front of the air-conditioning maintenance door, and the positioning pins are inserted into the corresponding pin holes. The outer wall of the first installation ring fits with the side wall of the installation hole, and the first annular installation surface fits with the air-conditioning maintenance door; the buckle is aligned with the corresponding L-shaped slot, and the second installation ring on the back frame is extended from the back of the air-conditioning maintenance door into the inner side of the first installation ring, and the back frame is rotated so that the buckle is engaged with the innermost side of the bottom of the corresponding L-shaped slot; the sealing grooves on the first annular installation surface and the second annular installation surface are both provided with sealing strips to form a sealing fit with the air-conditioning maintenance door. The above installation structure is simple, easy to operate, efficient, and easy to disassemble, and will not cause damage or breakage to the face frame and the back frame during disassembly and assembly.

[0066] Example 6

[0067] Based on Example 5, the following improvements are further made: for particularly harsh environments, in order to further strengthen the environment, the first annular mounting surface and the air conditioner inspection door can be fixed by two positioning screws to strengthen positioning.

[0068] Example 7

[0069] The difference from Example 6 is that: Figure 10-15As shown, the first annular mounting surface is provided with two positioning protrusions arranged along the circumferential direction, and the air conditioner inspection door around the mounting hole is provided with positioning holes equal to the number of the positioning protrusions and corresponding to each other, and the positioning protrusions are inserted into the corresponding positioning protrusions; the disassembly and assembly handle is a table-shaped protrusion structure. The rest are all referred to Example 6.

[0070] The above-mentioned air-conditioning inspection door observation mirrors that are easy to disassemble and assemble can realize the installation and fixation of the face frame and the back frame through movable connection, which can ensure stability and sealing while facilitating disassembly and assembly; the positioning pins are inserted into the corresponding pin holes to better ensure stability during installation and use; the face frame and the back frame will not be damaged or scrapped during disassembly and assembly; the face frame and the back frame form a cross-fit, with good sealing, and there is no need to install a sealing strip between the face frame and the back frame, which saves sealing strips and saves costs.

Claims

1. An observation mirror for an air conditioner inspection door that is easy to disassemble and assemble, characterized in that: The invention comprises a face frame (1) and a back frame (2); the face frame (1) comprises a face ring (11) and a first mounting ring (12); the first mounting ring (12) is vertically connected to the back of the face ring (11); the face ring (11) and the first mounting ring (12) are concentrically arranged; a first annular mounting surface is left between the first mounting ring (12) and the outer ring of the face ring (11); the first mounting ring (12) is provided with more than two L-shaped grooves (13) distributed along the periphery; and the first annular mounting surface is provided with more than two positioning pins (14) or positioning protrusions (15) arranged along the circumference; The back frame (2) comprises a back ring (21) and a second mounting ring (22), the second mounting ring (22) being vertically connected to the front surface of the back ring (21), the back ring (21) and the second mounting ring (22) being concentrically arranged, and a second annular mounting surface being left between the second mounting ring (22) and the outer ring of the back ring (21); the second mounting ring (22) is provided with more than two buckles (23) distributed along the periphery; the number of the buckles (23) is equal to the number of the L-shaped slots (13) and corresponds one to one; the back surface of the back frame (2) is provided with two disassembly and assembly handles (24) arranged opposite to each other; The second mounting ring (22) is inserted into the inner side of the first mounting ring (12), and the buckle (23) is engaged with the innermost side of the bottom of the corresponding L-shaped slot (13), so that the face frame (1) and the back frame (2) are movably spliced ​​together; the first annular mounting surface and the second annular mounting surface are both provided with sealing grooves arranged along the circumferential direction.

2. The easily disassembled air conditioner inspection door observation mirror according to claim 1, characterized in that: The L-shaped slot (13) is formed by splicing a vertical slot and a horizontal slot, the top of the horizontal slot is provided with saw teeth, and the buckle (23) is engaged with the innermost side of the horizontal slot at the bottom of the corresponding L-shaped slot (13).

3. The easily disassembled air conditioner inspection door observation mirror according to claim 1 or 2, characterized in that: Two symmetrical positioning pins (14) are provided on the first annular mounting surface.

4. The easily disassembled air conditioner inspection door observation mirror according to claim 1 or 2, characterized in that: The face ring (11) and the first mounting ring (12) of the face frame (1) are integrally formed injection-molded structures; and the back ring (21) and the second mounting ring (22) of the back frame (2) are integrally formed injection-molded structures.

5. The easily disassembled air conditioner inspection door observation mirror according to claim 1 or 2, characterized in that: 3±1 mm perspective glass is installed on the inner ring of the face ring (11) and the inner ring of the back ring (21).

6. The easily disassembled air conditioner inspection door observation mirror according to claim 1 or 2, characterized in that: Three to five L-shaped slots (13) are evenly distributed around the upper edge of the first mounting ring (12).

7. The easily disassembled air conditioner inspection door observation mirror according to claim 1 or 2, characterized in that: The disassembly handle (24) is a strip-shaped structure and forms an angle of 10 to 30 degrees with the back of the back frame (2); one end of the disassembly handle (24) is connected to the edge of the back of the back frame (2), and the other end is a free end and points to a side away from the center of the back frame (2); or the disassembly handle (24) is a table-shaped protruding structure.

8. The easily disassembled air conditioner inspection door observation mirror according to claim 7, characterized in that: The disassembly handle (24) and the back frame (2) are an integrally formed structure.

9. An easily disassembled air conditioner inspection door observation mirror installation structure according to any one of claims 1 to 8, comprising an air conditioner inspection door, a mounting hole being left on the air conditioner inspection door, characterized in that: The air conditioner inspection door around the mounting hole is provided with pin holes or positioning holes that are equal in number to the positioning pins (14) or positioning protrusions (15) and correspond one to one. The first mounting ring (12) on the face frame (1) extends into the mounting hole from the front of the air conditioner inspection door, and the positioning pins (14) or positioning protrusions (15) are inserted into the corresponding pin holes or positioning holes. The outer wall of the first mounting ring (12) fits with the side wall of the mounting hole, and the first annular mounting surface fits with the air conditioner inspection door. The buckle (23) is aligned with the corresponding L-shaped slot (13), and the second mounting ring (22) on the back frame (2) is extended into the inner side of the first mounting ring (12) from the back of the air conditioner inspection door. The back frame (2) is rotated so that the buckle (23) is engaged with the innermost side of the bottom of the corresponding L-shaped slot (13). The sealing grooves on the first annular mounting surface and the second annular mounting surface are both provided with sealing strips to form a sealing fit with the air conditioner inspection door.

10. The mounting structure according to claim 9, characterized in that: Fix the first annular mounting surface to the air conditioner inspection door by 1 to 2 positioning screws.

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