Ceiling type bidirectional fresh air machine

Abstract

The utility model discloses a ceiling type two-way fresh air ventilator, which relates to the field of fresh air ventilators and comprises a fresh air ventilator body, two ventilation pipes are arranged on the surface of the fresh air ventilator body, a mounting rod is fixedly arranged at the top of the fresh air ventilator body, an L-shaped mounting plate is arranged on the outer side of the fresh air ventilator body, and the L-shaped mounting plate is arranged on the outer side of the fresh air ventilator body. Expansion bolts are installed at the positions of the small holes of the installation plate, a through groove is formed in the surface of the installation plate, and a rotating plate is installed in the through groove. According to the ceiling type two-way fresh air ventilator, the through groove, the rotating plate and the abutting plate are arranged, the rotating plate is directly pulled to rotate to be away from the abutting plate, the rotating plate rotates to form an included angle of 90 degrees with the mounting plate, the connecting spring is in a compressed state all the time, and therefore the abutting plate can abut against the interior of the through groove, and when the rotating plate is subjected to downward pressure, the abutting plate can abut against the interior of the through groove. When the fresh air ventilator body is installed, rotation is generated until the fresh air ventilator body abuts against the surface of the abutting plate, at the moment, the installation plate can provide enough supporting force, installation of the fresh air ventilator body is guaranteed, and the installation mode is easy and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the field of fresh air fans, in particular to a ceiling-mounted bidirectional fresh air fan. Background Art

[0002] The two-way flow fresh air fan has an independent exhaust and air supply system. The polluted air is discharged to the outside through the exhaust port, exhaust duct and exhaust fan, and the fresh air outside is sent into the room through the supply fan, air supply duct and air supply port. When the fan is working, the incoming fresh air and the exhausted air will pass through the heat exchanger in the fan box at the same time. With the help of the heat exchanger, the exhausted air and the incoming fresh air will exchange heat and recover energy. The fresh air fan is divided into wall-mounted and ceiling-mounted types according to different installation methods.

[0003] Installation with bolts is a common installation method, which usually requires drilling holes in the ceiling. Although the installation method is relatively simple, the fan needs to be disassembled for maintenance at a later time, and holes need to be drilled in other locations, which not only causes great damage to the house, but also is more troublesome to operate. Utility Model Content

[0004] The main purpose of the utility model is to provide a ceiling-mounted two-way fresh air fan, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a ceiling-mounted two-way fresh air fan, comprising a fresh air fan body, two ventilation pipes are arranged on the surface of the fresh air fan body, a mounting rod is fixedly arranged on the top of the fresh air fan body, an L-shaped mounting plate is arranged on the outside of the fresh air fan body, expansion bolts are installed at the small hole position of the mounting plate, a through groove is opened on the surface of the mounting plate, a rotating plate is installed inside the through groove, the rotating plate and the mounting plate are movably connected by a hinge, a mounting groove is installed inside the through groove, a resist plate is installed inside the mounting groove, the surface of the resist plate resists the surface of the rotating plate, a connecting spring is installed inside the mounting groove, one end of the connecting spring is fixed to the surface of the resist plate.

[0006] The thickness of the rotating plate and the abutment plate are both less than half the depth of the through slot. A through slot is provided on the surface of the rotating plate. A protrusion is fixedly installed on the surface of the abutment plate. The protrusion abuts against the side surface of the rotating plate. The thickness of the protrusion is the same as that of the rotating plate. The top of the protrusion abuts against the inner wall of the through slot.

[0007] A groove is provided inside the through slot, the groove is located above the through slot, the mounting slot is located below the through slot, and the top of the abutment plate abuts against the inside of the groove.

[0008] A buckle block is fixedly mounted on the end surface of the mounting plate, and the buckle block is clamped inside the through slot.

[0009] A shifting rod is fixedly mounted on a side of the surface of the abutment plate away from the protrusion.

[0010] The rotation direction of the rotating plate is in the opposite direction to the protruding part of the mounting plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, by providing a through groove, a rotating plate and a resisting plate, the rotating plate is directly pulled to rotate away from the resisting plate. The rotating plate forms an angle of ninety degrees with the mounting plate. Since the connecting spring is always in a compressed state, the resisting plate will be pressed against the inside of the through groove. When the rotating plate is subjected to downward pressure, it will rotate until it presses against the surface of the resisting plate. At this time, the mounting plate can provide sufficient supporting force to ensure the installation of the fresh air fan body. The installation method is simple and convenient to operate, and reduces damage to the house during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a ceiling-mounted bidirectional fresh air fan of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the protrusion position of a ceiling-mounted bidirectional fresh air fan of the utility model;

[0015] Figure 3 This is a schematic diagram of the installation state of a mounting plate of a ceiling-mounted bidirectional fresh air fan of the utility model during installation;

[0016] Figure 4 This is a cross-sectional structural diagram of the connection spring position of a ceiling-mounted two-way fresh air fan of the utility model;

[0017] Figure 5 This is a schematic diagram of a non-installed state of a mounting plate of a ceiling-mounted two-way fresh air fan according to the utility model.

[0018] In the figure: 1. Fresh air fan body; 2. Ventilation duct; 3. Mounting rod; 4. Mounting plate; 5. Expansion bolt; 6. Push rod; 7. Through slot; 8. Turn plate; 9. Hinge; 10. Mounting slot; 11. Abutment plate; 12. Connecting spring; 13. Through slot; 14. Protrusion; 15. Groove; 16. Buckle block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-5As shown, a ceiling-mounted two-way fresh air fan comprises a fresh air fan body 1, two ventilation pipes 2 are arranged on the surface of the fresh air fan body 1, a mounting rod 3 is fixedly arranged on the top of the fresh air fan body 1, in this embodiment, there are two mounting rods 3, which can be installed by bolting, or directly fixed by welding, an L-shaped mounting plate 4 is arranged on the outside of the fresh air fan body 1, small holes are arranged on the surface of the mounting plate 4, expansion bolts 5 are installed at the small hole positions of the mounting plate 4, and the mounting plate 4 is fixed to the ceiling by the expansion bolts 5, A through slot 7 is provided on the surface of the mounting plate 4, a rotating plate 8 is installed inside the through slot 7, the side surface of the rotating plate 8 is flush with the side surface of the mounting plate 4, the rotating plate 8 and the mounting plate 4 are movably connected via a hinge 9, the hinge 9 is installed on the flush plane, a mounting slot 10 is installed inside the through slot 7, a butt plate 11 is installed inside the mounting slot 10, the surface of the butt plate 11 is against the surface of the rotating plate 8, a connecting spring 12 is installed inside the mounting slot 10, one end of the connecting spring 12 is fixed to the surface of the butt plate 11, and the connecting spring 12 is in a compressed state.

[0021] When in the installation state, the rotating plate 8 rotates to form an angle of ninety degrees with the mounting plate 4. Since the connecting spring 12 is always in a compressed state, the abutment plate 11 will be pressed against the inside of the through groove 7. When the rotating plate 8 is subjected to downward pressure, it will rotate until it abuts against the surface of the abutment plate 11. At this time, the mounting plate 4 can provide sufficient supporting force to ensure the installation of the fresh air fan body 1. When in use, first use the expansion bolts 5 to fix the mounting plate 4 to the ceiling, and then directly pull the rotating plate 8 to rotate away from the abutment plate 11. The operation is simple and convenient.

[0022] The thickness of the rotating plate 8 and the abutment plate 11 are both less than half the depth of the through groove 7. A through groove 13 is provided on the surface of the rotating plate 8. A protrusion 14 is fixedly installed on the surface of the abutment plate 11. The area of ​​the protrusion 14 is smaller than the area of ​​the through groove 13. The protrusion 14 abuts against the side surface of the rotating plate 8. The thickness of the protrusion 14 is the same as that of the rotating plate 8. The surface of the protrusion 14 is flush with the surface of the mounting plate 4, and the top of the protrusion 14 abuts against the inner wall of the through groove 7.

[0023] Since the connecting spring 12 is always in a compressed state, in the initial state, the protrusion 14 is against the inside of the through groove 13, ensuring that the rotating plate 8 is in a stable state, and since the surface of the protrusion 14 is flush with the surface of the mounting plate 4, when the rotating plate 8 rotates, the position of the protrusion 14 moves upward. At this time, the rotating plate 8 is against the surface of the protrusion 14, and the rotating plate 8 will not rotate, thereby ensuring the stability of the rotating plate 8 during installation.

[0024] A groove 15 is provided inside the through groove 7, and the groove 15 is located above the through groove 7. The mounting groove 10 is located below the through groove 7. The top of the abutment plate 11 abuts against the inside of the groove 15. At this time, when the rotating plate 8 abuts against the surface of the abutment plate 11, the abutment plate 11 is subjected to the reaction force of the groove 15 and the inner wall of the mounting groove 10, which can prevent the abutment plate 11 from falling off on the one hand, and ensure the stable movement of the abutment plate 11 on the other hand.

[0025] A buckle block 16 is fixedly installed on the end surface of the mounting plate 4, and the buckle block 16 is stuck in the inside of the through groove 13. The buckle block 16 is against the inside of the through groove 13 to reduce the shaking of the mounting rod 3 and ensure the stable installation of the fresh air fan body 1.

[0026] A lever 6 is fixedly mounted on the side of the surface of the abutment plate 11 away from the protrusion 14 . The abutment plate 11 is moved by the lever 6 to prevent the protrusion 14 from abutting against the inside of the through slot 13 , so as to facilitate the removal of the rotating plate 8 .

[0027] The rotation direction of the rotating plate 8 is in the opposite direction to the protruding part of the mounting plate 4 , so as to ensure that there is enough space to install the mounting plate 4 .

[0028] It should be noted that the utility model is a ceiling-mounted two-way fresh air fan. When in use, the mounting plate 4 is first fixed to the ceiling with the expansion bolts 5, and the lever 6 is moved to move the abutment plate 11 to prevent the protrusion 14 from abutting against the inside of the through groove 13, so as to facilitate the removal and rotation of the rotating plate 8. Then the rotating plate 8 is rotated to form an angle of ninety degrees with the mounting plate 4. Since the connecting spring 12 is always in a compressed state, the abutment plate 11 will be pressed against the inside of the through groove 7. Since the surface of the protrusion 14 is flush with the surface of the mounting plate 4, when the rotating plate 8 rotates, the position of the protrusion 14 moves upward. At this time, the rotating plate 8 abuts against the surface of the protrusion 14, and the rotating plate 8 will not rotate. When disassembling, you only need to pull the lever 6 to make the protrusion 14 move away from the rotating plate 8 until the protrusion 14 is stuck in the inside of the through groove 13. Installation and disassembly are very simple and convenient.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A ceiling-mounted bidirectional fresh air fan, comprising a fresh air fan body (1), wherein two ventilation pipes (2) are arranged on the surface of the fresh air fan body (1), and characterized in that: A mounting rod (3) is fixedly provided on the top of the fresh air fan body (1), an L-shaped mounting plate (4) is provided on the outside of the fresh air fan body (1), an expansion bolt (5) is installed at the small hole position of the mounting plate (4), a through groove (7) is provided on the surface of the mounting plate (4), a rotating plate (8) is installed inside the through groove (7), the rotating plate (8) and the mounting plate (4) are movably connected via a hinge (9), a mounting groove (10) is installed inside the through groove (7), a resisting plate (11) is installed inside the mounting groove (10), the surface of the resisting plate (11) resists the surface of the rotating plate (8), a connecting spring (12) is installed inside the mounting groove (10), and one end of the connecting spring (12) is fixed to the surface of the resisting plate (11).

2. A ceiling-mounted bidirectional fresh air fan according to claim 1, characterized in that: The thickness of the rotating plate (8) and the abutting plate (11) are both less than half the depth of the through groove (7); a through groove (13) is provided on the surface of the rotating plate (8); a protrusion (14) is fixedly mounted on the surface of the abutting plate (11); the protrusion (14) abuts against the side surface of the rotating plate (8); the thickness of the protrusion (14) is the same as that of the rotating plate (8); and the top of the protrusion (14) abuts against the inner wall of the through groove (7).

3. A ceiling-mounted bidirectional fresh air fan according to claim 1, characterized in that: A groove (15) is provided inside the through groove (7), the groove (15) is located above the through groove (7), the mounting groove (10) is located below the through groove (7), and the top of the abutment plate (11) abuts against the inside of the groove (15).

4. The ceiling-mounted bidirectional fresh air fan according to claim 1 is characterized in that: A buckle block (16) is fixedly mounted on the end surface of the mounting plate (4), and the buckle block (16) is clamped inside the through slot (13).

5. The ceiling-mounted bidirectional fresh air fan according to claim 1 is characterized in that: A shifting rod (6) is fixedly mounted on a side of the surface of the abutment plate (11) away from the protrusion (14).

6. The ceiling-mounted bidirectional fresh air fan according to claim 1, characterized in that: The rotation direction of the rotating plate (8) is in the opposite direction to the protruding part of the mounting plate (4).

Images