Telescopic wall type fan

Abstract

The utility model belongs to the technical field of wall type draught fans, and particularly relates to a telescopic wall type draught fan which comprises a fixed shell, a movable shell, a motor and blades, one end of the movable shell is arranged in one end of the fixed shell in a sleeved mode so that the movable shell can slide in a relative telescopic mode, and a plurality of sliding long holes are formed in one end of the movable shell. One end of the fixed shell is correspondingly provided with a connecting hole matched with the sliding long hole, position locking is conducted through a locking bolt, and the other end of the movable shell is connected with a louver. According to the telescopic wall type draught fan, the telescopic shell structure is designed, the length of the shell can be adjusted within a certain range so that the shell can be matched with the installation environment; the flexibility is ensured; the shutter mounting structure on the front side is convenient for mounting and dismounting the shutter; the maintenance is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of wall-mounted fans, and particularly relates to a telescopic wall-mounted fan. Background Technique

[0002] Wall-mounted axial flow ventilators are widely used and are usually installed on the side walls of various industrial plants, farms, etc. to achieve functions such as mechanical ventilation, heat exhaust, and odor exhaust. In reality, due to the different thicknesses of the walls, or the insufficient length of the fan housing after adding insulation to the wall and being unable to be adjusted, the fan housing cannot protrude from the wall, resulting in a hole on the wall, which looks unsightly.

[0003] In addition, wall-mounted axial flow fans usually use square shells. In order to prevent rain, rain-proof louvers are usually embedded inside the square shell and then fixed to the louvers with screws from the side. However, this fixing method has drawbacks. That is, when the rain-proof louvers need to be repaired or replaced, they cannot be disassembled because the square shell is completely embedded in the wall and sealed with cement or other fillers. At this time, if you want to repair or replace the rain-proof louvers, you need to remove the wall opening and then disassemble the entire fan for replacement or repair. This consumes a lot of manpower, material resources, and financial resources, and it is not worth the loss for a small rain-proof louver. However, the rain-proof louvers cannot be missing. Once removed, rainwater will enter the room, causing greater losses. Summary of the Invention

[0004] The utility model provides a telescopic wall-mounted fan, which can solve the problems pointed out in the background technique.

[0005] A telescopic wall-mounted fan includes a fixed housing, a movable housing, a motor, and blades. One end of the movable housing is sleeved inside one end of the fixed housing, enabling relative telescopic sliding. A plurality of sliding long holes are provided at one end of the movable housing, and corresponding connection holes are provided at one end of the fixed housing to cooperate with the sliding long holes, and the position is locked by a locking bolt. The other end of the movable housing is connected to a louver.

[0006] Preferably, the other end of the movable housing is connected to a louver installation housing, and the louver installation housing includes a trough-shaped housing and an installation ring provided inward on the outer edge of the trough-shaped housing.

[0007] Preferably, the edge of the louver is fixedly connected to the installation ring by a plurality of fixing bolts and is embedded in the trough-shaped housing.

[0008] Preferably, both the fixed housing and the movable housing are cylindrical shells.

[0009] Preferably, the fixed housing is provided with reinforcing ribs.

[0010] Beneficial effects: The present utility model provides a retractable wall-mounted fan, which has the following beneficial effects;

[0011] 1. Design a retractable housing structure, which can adjust the length of the housing within a certain range to adapt to the installation environment and ensure flexibility;

[0012] 2. The louver installation structure on the front facilitates the installation and disassembly of the louvers; it is convenient for maintenance. Description of the drawings

[0013] Figure 1 is a schematic cross-sectional view of the present utility model,

[0014] Figure 2 is a schematic cross-sectional view of the bottom of the present utility model,

[0015] Figure 3 is a schematic cross-sectional view of the fixed housing of the present utility model,

[0016] Description of the reference numerals in the drawings:

[0017] Reference numerals in the figure: fixed housing 1; connecting hole 11; reinforcing rib 12; movable housing 2; sliding long hole 21; motor 3; blade 4; louver installation housing 5; trough-shaped housing 51; installation ring 52; fixing bolt 53; louver 6; locking bolt 7. Specific embodiments

[0018] The following combines the drawings to describe in detail a specific embodiment of the present utility model, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiment.

[0019] Embodiment: As Figures 1-3 shown, a retractable wall-mounted fan provided by an embodiment of the present utility model includes a fixed housing 1, a movable housing 2, a motor 3 and a blade 4. One end of the movable housing 2 is sleeved inside one end of the fixed housing 1 so that it can slide relatively telescopically. A plurality of sliding long holes 21 are provided at one end of the movable housing 2, and the plurality of sliding long holes 21 are all arranged in a circumferential array. One end of the fixed housing 1 is correspondingly provided with connecting holes 11 that cooperate with the sliding long holes 21, and the position is locked by a locking bolt 7. The other end of the movable housing 2 is connected to the louver 6.

[0020] In some embodiments, for the convenience of the installation and disassembly of the shutter 6 and to ensure the aesthetic degree of the installation, the other end of the movable housing 2 is connected to the shutter installation housing 5. The shutter installation housing 5 includes a trough-shaped housing 51 and an installation ring 52 arranged inwardly on the outer edge of the trough-shaped housing 51. Specifically, the edge of the shutter 6 is fixedly connected to the installation ring 52 by a plurality of fixing bolts 53 and is embedded in the trough-shaped housing 51, that is, the blade main body part is inside the trough-shaped housing 51 to ensure the aesthetic degree.

[0021] In some embodiments, both the fixed housing 1 and the movable housing 2 are cylindrical housings, and the cylindrical housings have high strength and are convenient for processing.

[0022] In some embodiments, the fixed housing 1 is provided with a reinforcing rib 12 to improve the strength.

[0023] The above discloses only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A retractable wall fan, characterized in that: The invention comprises a fixed housing (1), a movable housing (2), a motor (3) and blades (4); one end of the movable housing (2) is sleeved inside one end of the fixed housing (1) so as to enable relative telescopic sliding; one end of the movable housing (2) is provided with a plurality of sliding long holes (21); one end of the fixed housing (1) is provided with corresponding connecting holes (11) matching with the sliding long holes (21) and is locked in position by means of locking bolts (7); the other end of the movable housing (2) is connected to a shutter (6).

2. A retractable wall-mounted fan according to claim 1, characterized in that: The other end of the movable housing (2) is connected to a shutter installation housing (5), and the shutter installation housing (5) comprises a groove-shaped housing (51) and a mounting ring (52) connected to the outer edge of the groove-shaped housing (51) and arranged inwardly.

3. A retractable wall-mounted fan according to claim 2, characterized in that: The edge of the shutter (6) is fixedly connected to the mounting ring (52) via a plurality of fixing bolts (53) and is embedded in the groove-shaped housing (51).

4. The retractable wall-mounted fan according to claim 1, characterized in that: The fixed shell (1) and the movable shell (2) are both cylindrical shells.

5. A retractable wall-mounted fan according to any one of claims 1 to 4, characterized in that: The fixed shell (1) is provided with reinforcing ribs (12).

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