Return air inlet quick mounting structure with filter screen

Abstract

The utility model discloses a return air inlet quick mounting structure with a filter screen, which comprises a flexible connector, a filter screen, a return air inlet and a return air outlet, and is characterized in that two ends of the flexible connector are respectively connected with an air pipe and an air inlet; the supporting legs are arranged on the outer side of the thin steel plate at the lower end of the flexible connection and abut against the suspended ceiling plate; the air opening is formed in the through hole of the suspended ceiling plate; the harness cords transversely penetrate through the thin steel plate at the lower end of the flexible connector; two ends of the tension spring are respectively hung on the thin steel plate at the lower end of the flexible connector and the tuyere; the filter screen is provided with a steel wire frame, and the filter screen is arranged in the thin steel plate at the lower end of the flexible connector and located above the harness cord; the magnet is arranged on the harness cord in a penetrating manner, and the magnet is used for fixing the filter screen; and the sealing strip is arranged between the thin steel plate at the lower end of the flexible connector and the tuyere and is used for sealing a gap between the thin steel plate and the tuyere. The air pipe and the air opening can be rapidly installed, cost is effectively reduced, efficiency is effectively improved, the air leakage rate is reduced, and actual use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of central air-conditioning systems, in particular to a quick installation structure of an air return opening with a filter screen. Background Art

[0002] In air-conditioning ventilation and fire smoke exhaust systems, when installing air vents, the method of drilling holes on the inner side of the air vent frame and connecting them to the flexible connection and the secondary keel frame is generally adopted; this traditional installation method mainly has the following problems:

[0003] 1. The installation speed is relatively slow, and the labor cost is relatively high.

[0004] 2. Sometimes due to tight construction schedules, the air vents are often not connected to the flexible connection. Instead, the galvanized steel plate frame of the flexible connection is directly sleeved behind the air vent, resulting in air leakage from the air vent and affecting the construction quality.

[0005] 3. When the traditional air return opening is equipped with a filter screen, in order to facilitate the disassembly and cleaning of the filter screen, the inner and outer frame form needs to be adopted. Just like our door, a door hinge is installed on one side to rotate the inner frame to open, and a locking part is installed on the other side to lock the inner frame; by opening the locking part and rotating the inner frame, the inner frame can be rotated out to disassemble the filter screen; however, because the inner frame has a certain thickness, the diagonal dimension of the inner frame is larger than the dimension of the outer side of the inner frame. When the air vent is relatively narrow, when the inner frame door hinge (installed on the side close to the surface of the inner frame) rotates, the inner side of the inner frame (at the diagonal position of the door hinge) will touch the inner side of the outer frame (when the gap is relatively large, the outer side of the inner frame cannot cover the locking part, which will seriously affect the aesthetics of the air vent). Therefore, generally, when the width is less than 150 mm, the hinged air return opening cannot be used, and on the project, it can only be changed to a fixed air vent with a filter screen (in this way, only the air vent can be disassembled to clean the filter screen, but with the traditional installation method, it is extremely difficult to disassemble and assemble the air vent) or enlarge the air vent (affecting the decoration effect).

[0006] 4. When the construction period is relatively tight, due to slow construction, after the decoration specialty or other relevant specialties occupy the position, it is difficult to chase the position of the flexible connection or the air vent, resulting in increased costs.

[0007] Therefore, exploring an efficient, fast and quality-guaranteed air vent method can better meet the market demand. Content of the Utility Model

[0008] In order to solve the problems existing in the prior art, the utility model provides a quick installation structure of an air return opening with a filter screen, the installation and disassembly operations of which are simple and fast; the connection part is effectively sealed to prevent air leakage; and the problem that it is relatively troublesome to disassemble and clean the filter screen of a relatively narrow air vent is solved.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A quick installation structure for a return air vent with a filter screen, comprising:

[0011] A flexible connection, where the flexible connection is formed by biting and connecting both ends of a hose to thin steel plates by a machine, and both ends of the flexible connection are respectively connected to an air duct and an air vent;

[0012] Legs, the legs are arranged on the outside of the thin steel plate at the lower end of the flexible connection, and the legs abut against the ceiling board;

[0013] An air vent, the air vent is installed at the through hole of the ceiling board;

[0014] Threaded rods, multiple threaded rods pass through the thin steel plate at the lower end of the flexible connection;

[0015] A tension spring, both ends of the tension spring are respectively hung on the thin steel plate at the lower end of the flexible connection and the air vent;

[0016] A filter screen, the filter screen is provided with a wire frame, and the filter screen is arranged inside the thin steel plate at the lower end of the flexible connection and above the threaded rods;

[0017] A magnetic catch, the magnetic catch is threaded on the threaded rod, and the magnetic catch is used to fix the filter screen;

[0018] And a sealing strip, the sealing strip is arranged between the thin steel plate at the lower end of the flexible connection and the air vent, and is used to seal the gap between the two.

[0019] Further, the threaded rods pass through the legs, and nuts are arranged at the ends of the threaded rods, and the nuts fix the legs on the outside of the thin steel plate at the lower end of the flexible connection.

[0020] Further, a hanging part extending inward is arranged at the end of the air vent, and the hanging part is used to connect with the tension spring.

[0021] Further, the legs abut against the light steel keel arranged at the top of the ceiling board.

[0022] Further, the light steel keel is a galvanized C-shaped steel, the lower end of the leg is a horizontal end plate, and the horizontal end plate is located inside the light steel keel and abuts against the outward side of the light steel keel.

[0023] Further, the sealing strip is a B1-class rubber and plastic cotton, one side of the sealing strip is attached to the inner side of the thin steel plate at the lower end of the flexible connection, and the other side of the sealing strip is attached to the outer side of the air vent.

[0024] Further, a short pipe is arranged between the flexible connection and the air duct, the short pipe is provided with a flange for fixing to the air duct, and the flexible connection is sleeved on the short pipe and fixed to the short pipe.

[0025] Further, the hose can be made of polyurethane-coated fiberglass cloth, aluminum foil cloth or silicon titanium cloth.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] After the utility model is connected with the air duct through the soft connection, the air outlet and the soft connection are quickly connected through the tension spring, and the magnetic magnet in the soft connection fixes the filter screen, which is convenient for installation and disassembly of the filter screen and is convenient for practical use.

[0028] The utility model is simple and quick to install and disassemble, and the connection part effectively ensures the sealing, prevents air leakage, and solves the problem that the filter screen of the narrow air outlet is difficult to disassemble and clean.

[0029] The utility model greatly improves the connection speed between the air duct and the upper end of the soft connection, solves the problem of air outlet installation and sealing connection, effectively prevents air leakage, reduces energy waste, and achieves energy-saving effects. It reduces the interference of other types of work during the rush stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0031] Reference numerals in the figures:

[0032] 1. Light steel keel; 2. Ceiling plate; 3. Air outlet; 4. Legs; 5. Sealing strip; 6. Through thread; 7. Nut; 8. Tension spring; 9. Self-tapping screw; 10. Pressure strip; 11. Magnet; 12. Filter; 13. Flexible connection. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] like Figure 1 As shown, the utility model provides a return air outlet quick installation structure equipped with a filter, which includes a soft connection 13. The soft connection 13 is connected by a hose at both ends and a thin steel plate through a machine. The hose is a tubular hose made of gray polyurethane coated glass fiber cloth, aluminum foil cloth or silicon titanium cloth, and the two ends of the soft connection 13 are respectively connected to the air duct and the air outlet 3.

[0035] The outer side of the thin steel plate at the lower end of the soft connection 13 is provided with a leg 4, which is supported on the top of the ceiling plate 2, so as to support the soft connection 13. In this embodiment, the ceiling plate 2 is a gypsum board or an aluminum alloy board.

[0036] A through hole corresponding to the air outlet 3 is formed on the ceiling plate 2, and the air outlet 3 is installed at the through hole of the ceiling plate 2. A tension spring 8 is hung in the air outlet 3, and the other end of the tension spring 8 is hung in the thin steel plate at the lower end of the soft connection 13. Through the tension of the tension spring 8, the lower end surface of the air outlet 3 is fitted with the ceiling plate 2, so that the air outlet 3 can be quickly installed. A sealing strip 5 is installed between the air outlet 3 and the thin steel plate at the lower end of the soft connection 13, and the sealing strip 5 seals the gap between the two to prevent air leakage.

[0037] In a possible embodiment, the legs 4 are diffracted outward along the thin steel plate at the lower end of the flexible connection 13, and the ends of the legs 4 are formed with horizontal end plates for increasing the contact area with the ceiling plate 2. Optionally, the legs 4 are made of galvanized steel plates.

[0038] A parallel set of wires 6 are provided across the thin steel plate at the lower end of the flexible connection 13, and the number of wires 6 is at least two. The tension spring 8 is hung on the wires 6 to achieve the connection between the tension spring 8 and the thin steel plate at the lower end of the flexible connection 13. At the same time, the wires 6 can be provided through the legs 4, and the ends of the wires 6 are fixed with nuts 7 to fix the legs 4 to the outside of the thin steel plate at the lower end of the flexible connection 13. In this embodiment, the wires 6 can not only fix the legs 4, but also be used for connection with the tension spring 8.

[0039] The tuyere 3 is an aluminum metal structure, and a hanging portion extending inward is formed on the top of the tuyere 3, and the hanging portion is used to connect with the tension spring 8. The two ends of the tension spring 8 are respectively hung on the wire 6 and the hanging portion of the tuyere 3, and the tension of the tension spring 8 makes the installation end surface of the tuyere 3 fit tightly on the ceiling plate 2.

[0040] The application of the tension spring 8 in the installation of the air outlet 3 plays a role in fixing the air outlet 3 to a suitable position, and effectively solves the problem of improper installation of the air outlet 3 under complex conditions on site.

[0041] In this embodiment, the harness 6 is provided with an ferromagnetic magnet 11, which is distributed at both ends of the harness 6 and is located in the thin steel plate at the lower end of the flexible connection 13. A filter screen 12 is installed in the thin steel plate at the lower end of the flexible connection 13, and the filter screen 12 is adapted to the thin steel plate at the lower end of the flexible connection 13. The filter screen 12 has a steel wire frame, and the ferromagnetic magnet 11 on the harness 6 magnetically fixes the filter screen 12 to the harness 6.

[0042] In a possible embodiment, a light keel is fixed on the top of the ceiling plate 2, the light steel keel 1 is a galvanized C-shaped steel, and the light keel is arranged along the opening of the ceiling plate 2. The horizontal end plate of the leg 4 is located in the light steel keel 1 and abuts against the outward side of the light steel keel 1.

[0043] The sealing strip 5 is a Class B1 black rubber and plastic cotton with a thickness of 5 mm. One side of the sealing strip 5 is attached to the inner side of the thin steel plate at the lower end of the flexible connection 13 and the light steel keel 1, and the other side of the sealing strip 5 is attached to the outer side of the air outlet 3. The sealing strip 5 solves the problems of sealing and heat preservation in the connection between the air outlet 3 and the flexible connection 13, saving energy and preventing condensation.

[0044] In this embodiment, a connection structure between the air duct and the flexible connection 13 is specifically disclosed. A short pipe with a flange can be connected at the opening of the air duct to facilitate the connection between the short pipe and the air duct. The short pipe is made of galvanized steel plate and is arranged vertically downward. The short pipe is hermetically connected to the air duct to prevent air leakage.

[0045] The thin steel plate of the flexible connection 13 is sleeved on the short pipe and fixedly connected to the short pipe. Specifically, a pressing strip 10 is installed on the outer side of the thin steel plate of the flexible connection 13. The pressing strip 10 is made of galvanized steel plate. The pressing strip 10 presses the thin steel plate of the flexible connection 13 on the short pipe, and the pressing strip 10 is fixed to the short pipe by self-tapping screws 9 to achieve the fixation of the flexible connection 13 and the short pipe. At the same time, the flexible connection 13 and the short pipe can also be connected in other ways, such as flanges are provided at the connection of both, and they are fixed by bolts. Of course, there can be other connection methods, which will not be elaborated here.

[0046] In addition, a flange structure can be directly provided at the thin steel plate of the flexible connection 13, and the flange structure is directly fixedly connected to the opening of the air duct, such as by bolts; at the same time, a quick-release structure can be provided between the two to achieve quick detachable connection through the quick-release structure.

[0047] With the continuous development of the air conditioning ventilation and smoke prevention and exhaust systems in the construction industry, the competition is becoming increasingly fierce. Only by reducing costs, improving efficiency, and continuously breaking through and innovating existing technologies can an enterprise remain invincible. The air outlet 3 structure of the present utility model can be quickly installed on the air duct, with simple and fast operation, low cost, and high efficiency.

[0048] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A quick installation structure for a return air outlet with a filter screen, characterized in that, Including: A flexible connection (13), the flexible connection (13) is formed by biting and connecting a hose at both ends with a thin steel plate by a machine, and both ends of the flexible connection (13) are respectively connected to an air duct and an air outlet; Legs (4), the legs (4) are arranged on the outer side of the thin steel plate at the lower end of the flexible connection (13), and the legs (4) are propped against the ceiling board (2); An air outlet (3), the air outlet (3) is installed at the through hole of the ceiling board (2); Threaded rods (6), a plurality of the threaded rods (6) penetrate through the thin steel plate at the lower end of the flexible connection (13); A tension spring (8), both ends of the tension spring (8) are respectively hung on the thin steel plate at the lower end of the flexible connection (13) and the air outlet (3); A filter net (12), the filter net (12) is provided with a steel wire frame, and the filter net (12) is arranged inside the thin steel plate at the lower end of the flexible connection (13) and above the threaded rods (6); A magnetic iron (11), the magnetic iron (11) is threaded on the threaded rods (6), and the magnetic iron (11) is used to fix the filter net (12); And a sealing strip (5), the sealing strip (5) is arranged between the thin steel plate at the lower end of the flexible connection (13) and the air outlet (3) to seal the gap therebetween.

2. The quick installation structure of an air return opening with a filter screen according to claim 1, characterized in that, The threaded rods (6) pass through the legs (4), and nuts (7) are arranged at the ends of the threaded rods (6), and the nuts (7) fix the legs (4) on the outer side of the thin steel plate at the lower end of the flexible connection (13).

3. The quick installation structure of an air return opening with a filter screen according to claim 1, characterized in that, The end of the air outlet (3) is provided with an inwardly extending hanging portion, and the hanging portion is used to connect with the tension spring (8).

4. A quick installation structure of an air return opening with a filter screen according to claim 1, characterized in that, The legs (4) are propped against the light steel keel (1) arranged at the top of the ceiling board (2).

5. The quick installation structure of an air return opening with a filter screen according to claim 4, characterized in that, The light steel keel (1) is a galvanized C-shaped steel, the lower end of the leg (4) is a horizontal end plate, and the horizontal end plate is located inside the light steel keel (1) and abuts against the outward side of the light steel keel (1).

6. The quick installation structure of an air return opening with a filter screen according to claim 5, characterized in that, The sealing strip (5) is a B1-class rubber and plastic cotton, one side of the sealing strip (5) is attached to the inner side of the thin steel plate at the lower end of the flexible connection (13), and the other side of the sealing strip (5) is attached to the outer side of the air outlet (3).

7. The quick installation structure of an air return opening with a filter screen according to claim 1, characterized in that, A short pipe is arranged between the flexible connection (13) and the air duct, the short pipe is provided with a flange for fixing to the air duct, and the flexible connection (13) is sleeved on the short pipe and fixed to the short pipe.

8. The quick installation structure of an air return opening with a filter screen according to claim 1, characterized in that, The hose can be made of polyurethane-coated fiberglass cloth, aluminum foil cloth or silicon titanium cloth.

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