Pipeline fan convenient to disassemble and assemble

Abstract

The utility model belongs to the technical field of pipeline fans, and particularly relates to a pipeline fan convenient to disassemble and assemble, which comprises a base, pipeline butt-joint pipes are respectively formed at two ends of the base, a mounting cavity for mounting the pipeline fan is formed between the two pipeline butt-joint pipes, and the pipeline fan comprises a mounting seat and silencing air cylinders respectively arranged at two ends of the mounting seat. A noise reduction cover is installed on the periphery of the noise reduction air cylinder, a motor base used for installing a motor is formed in the installation base, a semi-annular fixing base is formed on the inner side of the pipeline butt joint pipe, and a rotatable semi-annular fixing ring is installed at one end of the semi-annular fixing base. When the pipeline fan needs to be installed at a designated position, firstly, the base is fixed at the position, then the pipeline fan is installed in the installation cavity, and then the semi-annular fixing ring is rotated to be buckled and fixed to the periphery of the silencing air cylinder, so that fixed installation of the pipeline fan is achieved, and the pipeline fan installation structure is simple and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline fans, in particular to a pipeline fan that is easy to disassemble and assemble. Background Art

[0002] Nowadays, buildings generally use duct ventilation systems as internal ventilation equipment to exchange outside air to ensure the cleanliness of the air inside the building. In duct ventilation systems, duct fans are generally used to draw outside air into the building or discharge the air inside the building to the outside.

[0003] For example, the Chinese utility model, patent number 202121478043.2, discloses a duct fan with a strap, a fan body, an air inlet duct, an air outlet duct and a strap structure; the fan body has openings at both ends; the air inlet duct and the air outlet duct are respectively connected to the openings at both ends of the fan body; the connection between the fan body and the air inlet duct and the air outlet duct is tied and fixed by the strap structure.

[0004] This structure is still relatively complex and inconvenient to assemble and disassemble, so it needs to be further improved. Utility Model Content

[0005] The utility model aims to provide a duct fan which is easy to disassemble and assemble, and solves the problem of inconvenient disassembly and assembly through a semi-annular fixing ring.

[0006] The purpose of the utility model is achieved as follows: a duct fan that is easy to disassemble and assemble, comprising a base, duct butt joints are respectively formed at both ends of the base, an installation cavity for installing the duct fan is formed between the two duct butt joints, the duct fan comprises a mounting seat and a silencer fan cylinder respectively arranged at both ends thereof, a silencer cover is installed on the outer periphery of the silencer fan cylinder, a motor seat for installing a motor is formed in the mounting seat, a semi-annular fixing seat is formed on the inner side of the duct butt joint, and a rotatable semi-annular fixing ring is installed at one end of the semi-annular fixing seat to be fixed on the outer periphery of the silencer fan cylinder.

[0007] Preferably, a connecting ring is formed on the outer periphery of one end of the silencer fan, and an annular groove for the connecting ring to be clamped is formed in the semi-annular fixing seat.

[0008] Preferably, the silencer air duct is provided with a plurality of strip-shaped silencer holes.

[0009] Preferably, a connecting portion 1 is formed at the other end of the silencer fan, a connecting hole 1 is provided in the connecting portion 1, and a connecting hole 2 is provided in the mounting base.

[0010] Preferably, an air passage is provided between the motor seat and the mounting seat, and a plurality of guide vanes are formed in the air passage.

[0011] Preferably, two semi-annular baffles are installed on one side of the air passage, and the two semi-annular baffles can be rotatably arranged in the air passage to open or close the air passage.

[0012] Preferably, a cover plate is installed at the other end of the motor base, and a cavity for installing a circuit board is formed between the cover plate and the motor base.

[0013] Preferably, a connecting plate is formed on the outer periphery of one end of the silencer air duct, and a connecting hole three is opened in the connecting plate; a connecting part two is formed on one end of the silencer cover, and a connecting hole four is opened in the connecting part two.

[0014] Preferably, one end of the semi-annular fixing ring is rotatably connected to the semi-annular fixing seat, the other end of the semi-annular fixing ring is provided with a fastening hole 1, a fastener is provided in the fastening hole 1, and the other end of the semi-annular fixing seat is provided with a fastening hole 2 for the fastener to be screwed into.

[0015] Preferably, a lug is formed on the other end of the semi-annular fixing ring, an elastic clamping plate is formed on the inner side of the lug, and a slot for clamping the elastic clamping plate is formed on the outer side of the semi-annular fixing seat.

[0016] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0017] The utility model adopts the design of the semi-annular fixing ring, so that during the actual installation process, when the duct fan needs to be installed in a specified position, the base is first fixed at the position, and then the duct fan is installed in the installation cavity, and then the semi-annular fixing ring is rotated to buckle and fix it to the outer periphery of the silencer duct, thereby realizing the fixed installation of the duct fan. The installation structure is simple and easy to disassemble and assemble, so that it is easy to install it in the specified position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 2 This is a structural diagram when the base and duct fan are separated.

[0020] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0021] Figure 4 for Figure 3 Schematic diagram of the structural cross-section at AA in the middle.

[0022] Figure 5 This is a schematic diagram of the exploded structure of the duct fan parts.

[0023] Figure markings: 1-base; 2-pipe connecting pipe; 3-pipe fan; 4-installation cavity; 5-installation seat; 6-silencer duct; 7-silencer cover; 8-motor seat; 9-semi-annular fixing seat; 10-semi-annular fixing ring; 11-connecting ring; 12-annular groove; 13-strip silencer hole; 14-connecting part one; 15-connecting hole one; 16-connecting hole two; 17-air passage; 18-guide plate; 19-semi-annular baffle; 20-cover plate; 21-cavity; 22-connecting plate; 23-connecting hole three; 24-connecting part two; 25-connecting hole four; 26-fastening hole one; 28-fastening hole two; 29-lever; 30-elastic clamp; 31-slot. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, a duct fan that is easy to disassemble and assemble includes a base 1, and duct butt joints 2 are respectively formed at both ends of the base 1. An installation cavity 4 for installing a duct fan 3 is formed between the two duct butt joints 2. The duct fan 3 includes a mounting seat 5 and a silencer fan 6 respectively arranged at both ends thereof. A silencer cover 7 is installed on the outer periphery of the silencer fan 6, and a motor seat 8 for installing a motor is formed in the mounting seat 5. A semi-annular fixing seat 9 is formed on the inner side of the duct butt joint 2, and a rotatable semi-annular fixing ring 10 is installed at one end of the semi-annular fixing seat 9 to be fixed on the outer periphery of the silencer fan 6.

[0026] The utility model adopts the design of the semi-annular fixing ring, so that during the actual installation process, when the duct fan needs to be installed at a specified position, the base 1 is first fixed at the position, and then the duct fan 3 is installed into the installation cavity 4, and then the semi-annular fixing ring 10 is rotated to snap and fix it on the outer periphery of the silencer fan 6, thereby realizing the fixed installation of the duct fan 3. The installation structure is simple and easy to disassemble and assemble, so that it is easy to install it at the specified position.

[0027] Combine Figure 2 and Figure 4 A connecting ring 11 is formed on the outer periphery of one end of the silencer duct 6, and an annular groove 12 is formed in the semi-annular fixing seat 9 for the connecting ring 11 to be clamped. During the actual installation process, the lower sides of both ends of the silencer duct 6 are clamped in the annular groove 12 through the connecting ring 11, and then the upper side of the connecting ring 11 is fixed by the semi-annular fixing ring 10, thereby realizing the fixed installation of the duct fan as a whole 3.

[0028] Combine Figure 4 and Figure 5The silencer duct 6 is provided with a number of strip-shaped silencer holes 13 to reduce the noise generated during operation. The noise absorption is maximized through the cooperation of the silencer cover 7 and the silencer holes, so that the fan body has a good silent effect to meet the actual demand for low noise at the construction site or installation environment.

[0029] The other end of the silencer duct 6 is formed with a connecting portion 14, and a connecting hole 15 is provided in the connecting portion 14. A connecting hole 2 16 is provided in the mounting base 5. During the actual installation process, the connection between the silencer duct 6 and the mounting base 5 can be achieved by screwing the fasteners into the connecting hole 15 and the connecting hole 2 16. The connection structure is simple and easy to assemble and disassemble.

[0030] An air passage 17 is defined between the motor base 8 and the mounting base 5 , and a plurality of guide vanes 18 are formed in the air passage 17 .

[0031] Combine Figure 4 and Figure 5 Two semi-annular baffles 19 are installed on one side of the air passage 17. The two semi-annular baffles 19 can be rotatably set in the air passage 17 to open or close the air passage 17. Normally, the semi-annular baffles are set in the air passage 17 in a normally closed state to prevent cockroaches and mice from entering the pipe. When the fan is started, the semi-annular baffles will be pushed to rotate, opening the air passage for air exchange.

[0032] A cover plate 20 is installed at the other end of the motor base 8 , and a cavity 21 for installing a circuit board is formed between the cover plate 20 and the motor base 8 .

[0033] A connecting plate 22 is formed on the outer periphery of one end of the silencer duct 6, and a connecting hole three 23 is formed in the connecting plate 22. A connecting portion two 24 is formed on one end of the silencer cover 7, and a connecting hole four 25 is formed in the connecting portion two 24. During the actual installation process, the connection between the silencer cover 7 and the silencer duct 6 can be achieved by screwing the fasteners into the connecting holes three 23 and four 25. The connection structure is simple and easy to assemble and disassemble.

[0034] Combine Figure 1 and Figure 2 One end of the semi-annular fixing ring 10 is rotatably connected to the semi-annular fixing seat 9, and the other end of the semi-annular fixing ring 10 is provided with a fastening hole 26, in which a fastener 27 is provided. The other end of the semi-annular fixing seat 9 is provided with a fastening hole 28 for the fastener to be screwed in, so that one end of the semi-annular fixing ring 10 is fixed on the semi-annular fixing seat 9, and the silencer wind tube 6 is buckled on its inner circumference.

[0035] The other end of the semi-annular fixing ring 10 is formed with a lever ear 29, the inner side of the lever ear 29 is formed with an elastic clamping plate 30, and the outer side of the semi-annular fixing seat 9 is formed with a clamping groove 31 for the elastic clamping plate 30 to be clamped, thereby further fixing the semi-annular fixing ring 10 to prevent it from falling off.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A duct fan that is easy to disassemble and assemble, characterized in that: The invention comprises a base (1), wherein two ends of the base (1) are respectively formed with pipe butt joints (2), an installation cavity (4) for installing a pipe fan (3) is formed between the two pipe butt joints (2), the pipe fan (3) comprises a mounting seat (5) and a silencer fan (6) respectively arranged at two ends thereof, a silencer cover (7) is installed on the outer periphery of the silencer fan (6), a motor seat (8) for installing a motor is formed in the mounting seat (5), a semi-annular fixing seat (9) is formed on the inner side of the pipe butt joint (2), and a rotatable semi-annular fixing ring (10) is installed at one end of the semi-annular fixing seat (9) so as to be fixed on the outer periphery of the silencer fan (6).

2. The duct fan that is easy to disassemble and assemble according to claim 1 is characterized in that: A connecting ring (11) is formed on the outer periphery of one end of the muffler fan (6), and an annular groove (12) for the connecting ring (11) to be clamped is formed in the semi-annular fixing seat (9).

3. The duct fan that is easy to disassemble and assemble according to claim 1 or 2, characterized in that: The silencer air cylinder (6) is provided with a plurality of strip-shaped silencer holes (13).

4. The duct fan that is easy to disassemble and assemble according to claim 2 is characterized in that: The other end of the silencer air duct (6) is formed with a connecting portion (14), a connecting hole (15) is provided in the connecting portion (14), and a connecting hole (16) is provided in the mounting seat (5).

5. The duct fan that is easy to disassemble and assemble according to claim 1 is characterized in that: An air passage (17) is provided between the motor seat (8) and the mounting seat (5), and a plurality of guide plates (18) are formed in the air passage (17).

6. The duct fan that is easy to disassemble and assemble according to claim 5, characterized in that: Two semi-annular baffles (19) are installed on one side of the air passage (17). The two semi-annular baffles (19) can be rotatably arranged in the air passage (17) to open or close the air passage (17).

7. The duct fan that is easy to disassemble and assemble according to claim 1 is characterized in that: A cover plate (20) is installed at the other end of the motor seat (8), and a cavity (21) for installing a circuit board is formed between the cover plate (20) and the motor seat (8).

8. The duct fan that is easy to disassemble and assemble according to claim 1 is characterized in that: A connecting plate (22) is formed on the outer periphery of one end of the muffler air duct (6), and a connecting hole three (23) is opened in the connecting plate (22); a connecting portion two (24) is formed on one end of the muffler cover (7), and a connecting hole four (25) is opened in the connecting portion two (24).

9. The duct fan that is easy to disassemble and assemble according to claim 1, characterized in that: One end of the semi-annular fixing ring (10) is rotatably connected to the semi-annular fixing seat (9), the other end of the semi-annular fixing ring (10) is provided with a fastening hole (26), a fastener (27) is provided in the fastening hole (26), and the other end of the semi-annular fixing seat (9) is provided with a fastening hole (28) for the fastener to be screwed into.

10. The duct fan that is easy to disassemble and assemble according to claim 1, characterized in that: The other end of the semi-annular fixing ring (10) is formed with a pull ear (29), the inner side of the pull ear (29) is formed with an elastic clamping plate (30), and the outer side of the semi-annular fixing seat (9) is formed with a clamping groove (31) for the elastic clamping plate (30) to be clamped.

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