Centrifugal fire-fighting smoke exhaust fan

Abstract

The utility model belongs to the technical field of fire-fighting smoke exhaust fans, particularly relates to a centrifugal fire-fighting smoke exhaust fan, and provides the following scheme aiming at the protection problem: the centrifugal fire-fighting smoke exhaust fan comprises a smoke exhaust fan body; a first mounting groove is formed in the front surface of the smoke exhaust fan body; a fixing groove is formed in the inner surface of the smoke exhaust fan body; a mounting frame is fixedly connected to the inner surface of the first mounting groove. The inner surface of the mounting frame is fixedly connected with a filter screen; an auxiliary mechanism is rotationally mounted on the rear surface of the smoke exhaust fan body; and a fixing mechanism is fixedly connected to the outer surface of one side of the mounting frame. And through the arrangement of the fixing mechanism, the filter screen can be rapidly taken down, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire smoke exhaust fans, in particular to a centrifugal fire smoke exhaust fan. Background Art

[0002] A centrifugal fire smoke exhaust fan is a machine that uses a centrifugal fan to exhaust smoke in firefighting. With the changes in technology, people's requirements for centrifugal fire smoke exhaust fans are getting higher and higher.

[0003] However, the prior art still has its shortcomings. The centrifugal fire smoke exhaust fan in the prior art has certain disadvantages when in use. First, during fire smoke exhaust, foreign objects such as plastic bags and other paper pieces will be sucked into the fan, which can easily cause damage to the fan and have certain adverse effects.

[0004] Therefore, we propose a centrifugal fire smoke exhaust fan to solve this problem. Summary of the invention

[0005] The utility model aims to solve the problems raised in the above-mentioned background technology and proposes a centrifugal fire smoke exhaust fan.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The cam is an air filter according to claim 1, wherein the filter element is an air filter element and the filter element is affixed to the fan housing, the filter element being an air filter element of the fan housing.

[0008] Preferably, a No. 2 mounting groove is provided on the inner surface of the first shell; a No. 2 spring is fixedly connected to the inner surface of the No. 2 mounting groove; one end of the No. 2 spring is fixedly connected to a limiting block; a button is slidably installed on the inner surface of the limiting groove.

[0009] Preferably, one end of the No. 1 spring is fixedly connected to the inner surface of the No. 1 slide groove; and the fixing block and the fixing groove cooperate with each other.

[0010] Preferably, the baffle is made of aluminum alloy.

[0011] In the utility model, the centrifugal fire smoke exhaust fan is provided with a No. 1 installation slot, a fixing slot, an installation frame, a sliding slot, a filter screen, a fixing mechanism, a fixing block, a pushing block, a No. 1 spring, a first shell, a No. 2 installation slot, a No. 2 spring, a limiting block, a limiting slot, and a button. When the filter screen is disassembled, the pushing block is first pushed, and the movement of the pushing block drives the fixing block to leave the fixing slot, and the movement of the fixing block drives the first shell to move, and the first shell enters the limiting slot. The limiting block will enter the limiting slot under the action of the No. 2 spring, so that the first shell is restricted, and thus the fixing block is restricted, and the installation frame can be removed, so that the filter screen can be quickly removed, and the cleaning efficiency is improved;

[0012] In the utility model, the centrifugal fire smoke exhaust fan is provided with a connecting rod, a baffle, a first groove, and a second groove. When the smoke exhaust fan body is working, the baffle will be opened under the action of wind; when the smoke exhaust fan body is not working, the baffle will be closed under the action of its own gravity to prevent the external wind from flowing back.

[0013] The utility model has reasonable structural design, simple operation and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front perspective structural diagram of a centrifugal fire smoke exhaust fan proposed by the utility model;

[0015] Figure 2 This is a rear perspective structural diagram of a centrifugal fire smoke exhaust fan proposed by the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the auxiliary mechanism in the utility model;

[0017] Figure 4 It is a schematic cross-sectional structural diagram of the fixing mechanism in the utility model.

[0018] In the figure: 1. Smoke exhaust fan body; 11. Mounting slot No. 1; 12. Fixed slot; 2. Mounting frame; 21. Slide slot; 3. Filter; 4. Fixing mechanism; 41. Fixing block; 42. Push block; 43. Spring No. 1; 44. First shell; 45. Mounting slot No. 2; 46. Spring No. 2; 47. Limit block; 48. Limit slot; 49. Button; 5. Auxiliary mechanism; 51. Connecting rod; 52. Baffle; 53. Groove No. 1; 54. Groove No. 2. DETAILED DESCRIPTION

[0019] 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.

[0020] Reference Figure 1-4 A centrifugal fire smoke exhaust fan comprises a smoke exhaust fan body 1; a first mounting groove 11 is provided on the front surface of the smoke exhaust fan body 1; a fixing groove 12 is provided on the inner surface of the smoke exhaust fan body 1; a mounting frame 2 is fixedly connected to the inner surface of the first mounting groove 11; a filter screen 3 is fixedly connected to the inner surface of the mounting frame 2; an auxiliary mechanism 5 is rotatably installed on the rear surface of the smoke exhaust fan body 1; a fixing mechanism 4 is fixedly connected to the outer surface of one side of the mounting frame 2; the fixing mechanism 4 comprises a slide groove 21 arranged on the inner surface of the mounting frame 2 and a limiter 22 arranged on the outer surface of one side of the mounting frame 2 Groove 48; a fixed block 41 is slidably mounted on the inner surface of the slide groove 21; a push block 42 is fixedly connected to the outer surface of one side of the fixed block 41; a No. 1 spring 43 is fixedly connected to the outer surface of one side of the fixed block 41; a first shell 44 is fixedly connected to the outer surface of one side of the fixed block 41; the auxiliary mechanism 5 includes a connecting rod 51 rotatably mounted on the outer surface of one side of the smoke exhaust fan body 1; a baffle 52 is sleeved on the outer cylindrical surface of the connecting rod 51; a No. 1 groove 53 is provided on the upper side of the outer surface of one side of the baffle 52; a No. 2 groove 54 is provided on the lower side of the outer surface of the other side of the baffle 52.

[0021] Furthermore, a No. 2 mounting groove 45 is provided on the inner surface of the first shell 44; a No. 2 spring 46 is fixedly connected to the inner surface of the No. 2 mounting groove 45; one end of the No. 2 spring 46 is fixedly connected to a limiting block 47; and a button 49 is slidably installed on the inner surface of the limiting groove 48.

[0022] Furthermore, one end of the No. 1 spring 43 is fixedly connected to the inner surface of the No. 1 slide groove 21 ; the fixing block 41 and the fixing groove 12 cooperate with each other.

[0023] Furthermore, the baffle 52 is made of aluminum alloy.

[0024] In the utility model, when the filter 3 is disassembled during use, the push block 42 is first pushed, and the movement of the push block 42 drives the fixed block 41 to leave the fixed groove 12, and the movement of the fixed block 41 drives the first shell 44 to move, and the first shell 44 enters the limit groove 48. The limit block 47 will enter the limit groove 48 under the action of the second spring 46, so that the first shell 44 is restricted, thereby restricting the fixed block 41, and the installation frame 2 can be removed, so that the filter 3 can be quickly removed, and the cleaning efficiency is improved; when the smoke exhaust fan body 1 is working, the baffle 52 will open under the action of wind; when the smoke exhaust fan body 1 is not working, the baffle 52 will close under the action of its own gravity to prevent the backflow of external wind.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A centrifugal fire smoke exhaust fan, characterized in that: The invention comprises a smoke exhaust fan body (1); a first mounting groove (11) is provided on the front surface of the smoke exhaust fan body (1); a fixing groove (12) is provided on the inner surface of the smoke exhaust fan body (1); a mounting frame (2) is fixedly connected to the inner surface of the first mounting groove (11); a filter screen (3) is fixedly connected to the inner surface of the mounting frame (2); an auxiliary mechanism (5) is rotatably mounted on the rear surface of the smoke exhaust fan body (1); a fixing mechanism (4) is fixedly connected to the outer surface of one side of the mounting frame (2); the fixing mechanism (4) comprises a slide groove (21) arranged on the inner surface of the mounting frame (2) and a limit groove (48) arranged on the outer surface of one side of the mounting frame (2); A fixing block (41) is slidably mounted on the inner surface of the slide groove (21); a push block (42) is fixedly connected to an outer surface of one side of the fixing block (41); a No. 1 spring (43) is fixedly connected to an outer surface of one side of the fixing block (41); a first shell (44) is fixedly connected to an outer surface of one side of the fixing block (41); the auxiliary mechanism (5) comprises a connecting rod (51) rotatably mounted on an outer surface of one side of the smoke exhaust fan body (1); a baffle (52) is sleeved on the outer cylindrical surface of the connecting rod (51); a No. 1 groove (53) is provided on the upper side of the outer surface of one side of the baffle (52); a No. 2 groove (54) is provided on the lower side of the outer surface of the other side of the baffle (52).

2. A centrifugal fire smoke exhaust fan according to claim 1, characterized in that: The inner surface of the first shell (44) is provided with a No. 2 mounting groove (45); a No. 2 spring (46) is fixedly connected to the inner surface of the No. 2 mounting groove (45); one end of the No. 2 spring (46) is fixedly connected to a limiting block (47); and a button (49) is slidably mounted on the inner surface of the limiting groove (48).

3. A centrifugal fire smoke exhaust fan according to claim 1, characterized in that: One end of the No. 1 spring (43) is fixedly connected to the inner surface of the slide groove (21); the fixing block (41) and the fixing groove (12) cooperate with each other.

4. A centrifugal fire smoke exhaust fan according to claim 1, characterized in that: The baffle (52) is made of aluminum alloy.

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