CN221505235U - Central air conditioning return air access hole - Google Patents

Abstract

The utility model provides a central air-conditioning return air inspection port, which relates to the technical field of air-conditioning accessories, including a mounting frame, a return air outlet assembly and a position holding assembly, wherein the return air outlet assembly includes a return air outlet frame and fan blades, a fixing assembly is provided in the mounting frame, a movable shaft mounting portion is provided in the mounting frame, the shaft mounting portion can move outside the mounting frame, a shaft body is mounted on the shaft mounting portion, the return air outlet frame is connected to the shaft body, the return air outlet frame can rotate at an angle greater than 90°, and the position holding assembly can lock the return air outlet frame after rotation. By providing a partially detachable return air outlet assembly, when only maintenance work is performed, it is only necessary to rotate the return air outlet assembly, which can avoid obstacles to the maintenance work to the greatest extent, avoid the situation where the maintenance personnel need to climb high several times due to the complete disassembly and installation of the return air outlet, reduce safety hazards, and improve maintenance efficiency.

Description

A central air conditioning return air inspection port

Technical Field

The utility model relates to the technical field of air-conditioning accessories, in particular to a central air-conditioning return air inspection port.

Background Art

At present, the inspection port and return air vent of the central air conditioner are generally unified into one port to achieve an aesthetic effect. During maintenance, the return air vent assembly needs to be disassembled and placed aside before the air conditioning equipment therein is inspected. Since the inspection port is generally installed on the ceiling, the steps of placing and installing the return air vent assembly require maintenance personnel to climb up many times, especially in scenes such as office buildings where there are a large number of air conditioners that need to be repaired in a short period of time. Frequent climbing will bring certain safety hazards and reduce maintenance efficiency. In addition, the installation of the return air vent assembly after maintenance requires manual alignment, which is relatively laborious. Even if the outlet assembly can be partially disassembled in the existing solution, the angle between it and the inspection port is small after it is opened, which affects maintenance. In view of the above defects, the present application is proposed.

Utility Model Content

The utility model aims to provide a central air-conditioning return air inspection port. By setting the return air outlet assembly to an incompletely disassembly type, the return air outlet assembly does not need to be completely disassembled when the air conditioner is inspected and repaired using the inspection port, thereby solving the problem that the placement and installation process of the air outlet assembly after complete disassembly requires multiple climbs, resulting in safety hazards and reduced maintenance efficiency.

To solve the above problems, the utility model provides a central air-conditioning return air inspection port, comprising an installation frame, a return air port assembly and a position holding assembly, the return air port assembly comprising a return air port frame and fan blades, the fan blades being installed in the return air port frame, a fixing assembly being provided in the installation frame, the fixing assembly being used to fix the return air port assembly in the installation frame, a movable shaft mounting portion being provided in the installation frame, the shaft mounting portion being capable of moving outside the installation frame, a shaft body being mounted on the shaft mounting portion, the return air port frame being connected to the shaft body, the return air port frame being capable of rotating around the shaft body, the rotatable angle of the return air port frame being greater than 90°, and the position holding assembly being capable of locking the return air port frame after rotation.

According to an embodiment of the utility model, the return air vent frame is provided with a protruding edge, and the position maintaining assembly includes a swingable support member. After the return air vent frame is rotated, the support member is adjusted to an angle against the edge to lock the position of the return air vent frame.

According to an embodiment of the utility model, a positioning groove is provided on the edge, and the support member is inserted into the positioning groove when it abuts against the edge.

According to an embodiment of the utility model, a shaft sleeve is installed on the return air outlet frame, and the shaft body is inserted into the shaft sleeve.

According to an embodiment of the utility model, the fixing assembly includes an extrusion piece installed in the installation frame, the extrusion piece is symmetrically arranged, and an extrusion part is provided on the extrusion piece. The extrusion parts on both sides are pressed against the surface of the return air outlet frame to achieve fixation.

According to an embodiment of the utility model, a strip-shaped protrusion is provided on the extrusion portion, and a strip-shaped groove is provided on the surface of the return air outlet frame.

According to an embodiment of the utility model, the extrusion piece is provided with a flaring portion.

According to an embodiment of the present invention, the shaft body and the shaft mounting portion are detachably connected.

According to an embodiment of the utility model, the shaft sleeve is detachably connected to the return air outlet frame.

According to an embodiment of the present invention, the rotatable angle of the return air outlet frame is not less than 120°.

The beneficial effect of the present invention is that by setting up a return air vent assembly that is not completely detachable, when only maintenance work is to be carried out, it is only necessary to rotate the return air vent assembly to open the maintenance port. Since the return air vent assembly can move downward a certain distance, a larger rotation space can be provided, avoiding the restriction of the rotation angle of the return air vent assembly by the installation frame. Therefore, the return air vent assembly can rotate by an angle greater than 90°, which can avoid obstacles to maintenance work to the greatest extent and avoid the situation where maintenance personnel need to climb up multiple times due to complete disassembly and installation of the return air vent, thereby reducing safety hazards and improving maintenance efficiency. Moreover, after the maintenance is completed, the return air vent assembly only needs to be rotated back to the specified position and pushed upward to be installed in place, and the installation is simple and convenient.

BRIEF DESCRIPTION OF THE DRAWINGS

The utility model is further described below in conjunction with the accompanying drawings and embodiments.

FIG1 is a schematic diagram of a central air conditioner return air inspection port installation structure;

FIG2 is a schematic diagram of the overall cross-sectional structure of a central air conditioner return air inspection port;

FIG3 is a schematic diagram of the structure after the return air vent assembly is opened;

FIG4 is a schematic diagram of the top view of the structure of the return air outlet frame;

FIG. 5 is a schematic diagram of the structure of the return air outlet frame when viewed from above.

DETAILED DESCRIPTION

The following description is only used to disclose the present invention so that those skilled in the art can implement the present invention. The embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other solutions that do not deviate from the spirit and scope of the present invention.

[Example 1]

A central air conditioner return air inspection port, as shown in FIG2, includes a mounting frame 1, a return air port assembly and a position holding assembly. The mounting frame 1 is generally 45 cm*45 cm in size. The return air port assembly includes a return air port frame 2 and a plurality of fan blades 20. The fan blades 20 are evenly mounted in the return air port frame 2. A fixing assembly 3 is provided in the mounting frame 1. The fixing assembly 3 is used to fix the return air port assembly in the mounting frame 1. The fixing assembly 3 is generally a buckle assembly. In this embodiment, the fixing assembly 3 includes a mounting frame 1. The extrusion piece can be made of metal or plastic, and its shape is shown in Figures 2 and 3. The two sides of the extrusion piece are symmetrically arranged. An extrusion part 30 is provided on the extrusion piece. The distance between the extrusion parts on both sides is smaller than the width of the return air outlet frame 2. The extrusion parts 30 on both sides are pressed against the surface of the return air outlet frame 2 to achieve fixation. In order to achieve a better fixing effect, multiple groups of extrusion pieces can be arranged. At the same time, in order to achieve a better fixing effect, a strip protrusion 32 is provided on the extrusion part 30, and a strip groove or a strip protrusion is provided on the surface of the return air outlet frame 2 to achieve snap-fit fixation.

A movable shaft mounting part 6 is provided in the installation frame 1, as shown in Figures 2 and 3. The shaft mounting part 6 is a plate, and a slide rail is provided on the installation frame 1 or a T-shaped slide groove is provided in the inner wall. The shaft mounting part 6 is slidably installed on the installation frame 1, and the shaft mounting part 6 can move out of the installation frame 1. As shown in Figure 3, a shaft body 4 is installed on the shaft mounting part 6, and the return air outlet frame 2 is connected to the shaft body 4. The return air outlet frame 2 can rotate around the shaft body 4. The rotatable angle of the return air outlet frame 2 is greater than 90°, and the position holding component can lock the rotated return air outlet frame 2. Before maintenance, slide the shaft mounting part 6 downward to move the return air outlet frame 2 downward so that the return air outlet frame 2 has sufficient rotation space.

As shown in Figures 4 and 5, the return air vent frame 2 is provided with a protruding edge 21, which can reduce the gap between the return air vent frame 2 and the installation frame 1 to improve the aesthetic effect. The position holding component includes a swingable support 5. After the return air vent frame 2 is rotated, the support 5 is adjusted to an angle that is against the edge 21 to lock the position of the return air vent frame 2. As shown in Figure 3, after the return air vent frame 2 is rotated, the angle of the support 5 is manually adjusted, and the support 5 is rotatably installed on the installation frame 1. The fixing component 3 and the support 5 do not block each other to avoid affecting the operation.

As shown in FIG. 5 , a positioning groove 24 is provided on the edge 21 , and the support member 5 is inserted into the positioning groove 24 when abutting against the edge 21 , so as to prevent the support member 5 from sliding when abutting against the edge 21 .

As shown in FIG. 4 , a shaft sleeve 22 is installed on the return air vent frame 2 , the shaft body 4 is inserted into the shaft sleeve 22 , and the shaft sleeve 22 is arranged on one side of the return air vent frame 2 .

The position holding component has a variety of implementation methods. Holes can be set on the sleeve and the shaft body. When the sleeve rotates a certain angle, the hole on the sleeve corresponds to the hole on the shaft body, and the position is fixed by inserting a rod. A spring block can also be set in the hole on the shaft body. When the sleeve rotates a certain angle, the hole on the sleeve corresponds to the hole on the shaft body. The spring block is popped out by the spring and extends into the long hole on the sleeve to achieve fixation. It is not limited to the form of a support.

Preferably, the extrusion piece is provided with a flared portion 31 to facilitate positioning of the return air vent frame when the return air vent frame is installed.

Preferably, the rotatable angle of the return air vent frame 2 is not less than 120°, so as to avoid obstacles to maintenance to the greatest extent during the maintenance process.

In this embodiment, the sleeve 22 can be slidably installed on the return air vent frame 2, as shown in Figure 4, and a slide groove 26 is provided on the side wall of the return air vent frame 2, and the sleeve 22 is installed in the slide groove. When the return air vent frame 2 needs to be disassembled, the return air vent frame 2 can be rotated to the state of Figure 3, as shown in the direction of Figure 4, the sleeve 22 can slide downward along the slide groove, thereby disengaging from the shaft body 4. At this time, the return air vent frame 2 can be removed, which is suitable for when the return air vent assembly needs to be cleaned.

The installation method is shown in FIG. 1 . The installation frame 1 is connected to the air conditioner through a pipe. The installation frame 1 is installed on the gypsum board ceiling and can be fixedly connected to the covering keel.

Usage: When inspecting the air conditioner, pull the return air vent frame 2 downward to separate the return air vent frame 2 from the fixing assembly 3 and partially move it to the lower side of the mounting frame 1 to provide sufficient rotation space. Rotate the return air vent frame 2 to the state shown in FIG. 3 and use the support 5 to support the edge of the return air vent frame 2 to keep it at this angle to avoid obstacles to inspection.

Embodiment 2: Different from Embodiment 1, the shaft sleeve 22 is snap-fitted onto the return air vent frame 2, a snap-fitting groove is provided on the side wall of the return air vent frame 2, and a snap-fitting portion is provided on the shaft sleeve 22. The snap-fitting portion is inserted into the snap-fitting groove to achieve snap-fitting. When the return air vent frame 2 needs to be disassembled, the return air vent frame 2 can be rotated to the state of Figure 3, the shaft sleeve 22 can be removed and separated from the shaft body 4, and the return air vent frame 2 can be removed at this time.

Embodiment 3: Different from Embodiment 1, the sleeve 22 is fixedly mounted on the return air vent frame 2, the shaft body 4 and the shaft mounting portion 6 are detachably connected, one end of the shaft body 4 has a thread, and the connection with the shaft mounting portion 6 is achieved by screwing into the threaded through hole on the shaft mounting portion 6, and a cross groove is provided at the insertion end of the shaft body 4. When the return air vent frame 2 needs to be disassembled, a screwdriver is used to rotate the shaft body 4 to disengage the shaft body 4 from the shaft mounting portion 6, and the return air vent frame 2 can be removed at this time.

Optionally, the shaft body 4 and the mounting hole of the shaft mounting portion 6 may be fixedly connected by interference fit or by convex ridge extrusion fit.

Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed and modified in any way.

Claims (10)

1. A central air conditioner return air access hole, its characterized in that: including installation framework (1), return air inlet subassembly and position maintenance subassembly, the return air inlet subassembly includes return air inlet framework (2) and flabellum (20), flabellum (20) are installed in return air inlet framework (2), be equipped with fixed subassembly (3) in installation framework (1), fixed subassembly (3) are used for with the return air inlet subassembly is fixed in installation framework (1), be equipped with mobilizable axle installation department (6) in installation framework (1), axle installation department (6) can to installation framework (1) external displacement, install axis body (4) on axle installation department (6), return air inlet framework (2) with axis body (4) are connected, return air inlet framework (2) can wind axis body (4) are rotatory, but the rotation angle of return air inlet framework (2) is greater than 90, the position maintenance subassembly can lock to rotatory back inlet framework (2).

2. A central air conditioning return air service opening as recited in claim 1, wherein: the air return opening frame body (2) is provided with a convex edge (21), the position holding assembly comprises a supporting piece (5) capable of swinging, the supporting piece (5) is adjusted to an angle propped against the edge (21) after the air return opening frame body (2) rotates, and the air return opening frame body (2) is locked in position.

3. A central air conditioning return air service opening as recited in claim 2, wherein: the edge (21) is provided with a positioning groove (24), and the supporting piece (5) is inserted into the positioning groove (24) when being propped against the edge (21).

4. A central air conditioning return air service opening as claimed in any one of claims 1 to 3, wherein: the air return opening frame body (2) is provided with a shaft sleeve (22), and the shaft body (4) is inserted into the shaft sleeve (22).

5. A central air conditioning return air service opening as recited in claim 4, wherein: the fixing assembly (3) comprises an extrusion part arranged in the installation frame body (1), the extrusion part is symmetrically arranged, an extrusion part (30) is arranged on the extrusion part, and the extrusion parts (30) on two sides are pressed and fixed with the surface of the return air inlet frame body (2).

6. A central air conditioning return air service opening as recited in claim 5, wherein: the extrusion part (30) is provided with a strip-shaped protrusion (32), and the surface of the air return opening frame body (2) is provided with a strip-shaped groove.

7. A central air conditioning return air service opening as recited in claim 5 or 6, wherein: the extrusion part is provided with a flaring part (31).

8. A central air conditioning return air service opening as recited in claim 7, wherein: the shaft body (4) is detachably connected with the shaft mounting part (6).

9. A central air conditioning return air service opening as recited in claim 7, wherein: the shaft sleeve (22) is detachably connected with the air return opening frame body (2).

10. A central air conditioning return air service opening according to any one of claims 1 to 3, 5, 6, 8, 9, wherein: the rotatable angle of the air return opening frame body (2) is not smaller than 120 degrees.