A safety centrifugal fan

Abstract

The utility model provides safe centrifugal fan belongs to fan technical field. It solved the current fan air inlet passage filter screen all through several fixed bolts are connected on the casing, need to carry out shutdown in the process of dismounting, and the problem of time -consuming and labor -intensive of dismounting. This safe centrifugal fan, including fan body, fan body has the air inlet passage of air intake and the air outlet passage of air outlet, is fixed with mounting piece on fan body, is provided with the mounting baffle on mounting piece, is provided with four holes on mounting baffle, is provided with filter piece on mounting piece, is fixed with mounting rod on mounting baffle, the upper end of mounting piece is provided with two fixed parts, two fixed parts all are provided with positioning assembly, is provided with two locating parts on filter piece, and positioning assembly is composed of locating rod and return spring, is provided with mounting groove in two fixed parts, and locating hole is seted up on locating part. The utility model has the advantage that filter screen can be disassembled.

Description

Technical Field

[0001] This utility model belongs to the field of fan technology, and relates to a fan, particularly a safe centrifugal fan. Background Technology

[0002] A blower is a machine that uses input mechanical energy to increase gas pressure and discharge gas. It is a type of driven fluid machinery and is currently widely used in various fields. Because the inlet filter screen of a blower is prone to dust accumulation during use, it requires frequent cleaning. If damaged, it also needs to be replaced. Currently, existing blower inlet filter screens are connected to the housing with several fixing bolts. Disassembly requires stopping the machine, which is time-consuming, labor-intensive, and inefficient, failing to meet the production needs of enterprises. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a centrifugal fan with a detachable and safe filter.

[0004] The objective of this utility model can be achieved through the following technical solution: A safe centrifugal fan includes a fan body, the fan body having an air inlet channel and an air outlet channel, and a mounting component fixedly installed on the fan body at the air inlet channel. The mounting component is characterized by having a mounting baffle with four openings for air inlet, a filter element for filtration on the mounting component, a mounting rod for mounting the filter element fixedly installed on the mounting baffle, and the filter element being circumferentially rotatable on the mounting rod. The upper end of the mounting component has two fixing parts, each of which has a positioning component for positioning the filter element. The filter element has two positioning parts, which are integrally formed with the filter element. The positioning component consists of a positioning rod and a return spring. The two fixing parts have mounting grooves for the positioning rod to slide up and down, and the positioning parts have positioning holes for the positioning rod to engage.

[0005] In the aforementioned safe centrifugal fan, the filter element has an air inlet that matches the opening on the mounting baffle, and each of the four air inlets is equipped with a filter screen.

[0006] In the aforementioned safe centrifugal fan, the positioning rod is provided with a sliding part, one end of the return spring is connected to the sliding part, and the other end is connected to the fixed part. One end of the positioning rod extends out of the fixed part and is connected to a pull rod.

[0007] In the aforementioned safe centrifugal fan, the mounting component is provided with a connecting ring, which is fixedly installed on the fan body by fixing bolts.

[0008] In the aforementioned safe centrifugal fan, a mounting base is fixedly provided at the rear end of the fan body, and the mounting base is fixedly connected to the fan body by fixing bolts.

[0009] Compared with existing technologies, this safety centrifugal fan has an installation component at the front end of the fan body, on which a filter element for filtration can be detachably installed, making it convenient for staff to maintain and replace the filter screen. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a structural schematic diagram of the present invention from another angle.

[0012] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0013] In the diagram, 1. Fan body; 2. Mounting component; 3. Mounting baffle; 4. Filter element; 5. Mounting rod; 6. Fixing part; 7. Positioning assembly; 8. Positioning part; 9. Positioning rod; 10. Return spring; 11. Filter screen; 12. Mounting base. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figure 1 , Figure 2 , Figure 3 As shown, this safety centrifugal fan includes a fan body 1, which has an air inlet channel and an air outlet channel. A mounting component 2 is fixedly installed on the fan body 1 at the air inlet channel. The mounting component 2 has a mounting baffle 3 with four openings for air intake. A filter element 4 is installed on the mounting component 2. A mounting rod 5 for mounting the filter element 4 is fixedly installed on the mounting baffle 3, and the filter element 4 can rotate circumferentially on the mounting rod 5. Two fixing parts 6 are provided at the upper end of the mounting component 2. Each fixing part 6 has a positioning component 7 for positioning the filter element 4. The filter element 4 has two positioning parts 8, which are integrally formed with the filter element 4. The positioning component 7 consists of a positioning rod 9 and a return spring 10. The two fixing parts 6 have mounting grooves for the positioning rod 9 to slide up and down, and the positioning parts 8 have positioning holes for the positioning rod 9 to partially engage.

[0016] To elaborate further, when it is necessary to clean the filter screen 11, the levers of the positioning components 7 on both sides of the mounting component 2 are pulled simultaneously using a tool, causing the positioning rod 9 to move upward, releasing the positioning rod 9 from the filter element 4, rotating the filter element 4, and removing the filter element 4 from the mounting rod 5, so that the staff can repair and replace the filter screen 11 on the filter element 4.

[0017] To elaborate further, the filter element 4 has an air inlet that matches the opening on the mounting baffle 3, and each of the four air inlets is equipped with a filter screen 11.

[0018] To elaborate further, the positioning rod 9 is provided with a sliding part, one end of the return spring 10 is connected to the sliding part, and the other end is connected to the fixed part 6. One end of the positioning rod 9 extends out of the fixed part 6 and is connected to a pull rod.

[0019] To elaborate further, the mounting component 2 is provided with a connecting ring, which is fixedly installed on the fan body 1 by fixing bolts.

[0020] To elaborate further, a mounting base 12 is fixedly provided at the rear end of the fan body 1, and the mounting base 12 is fixedly connected to the fan body 1 by fixing bolts.

[0021] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0022] Although this document frequently uses terms such as fan body 1, mounting component 2, mounting baffle 3, filter component 4, mounting rod 5, fixing part 6, positioning assembly 7, positioning part 8, positioning rod 9, return spring 10, filter screen 11, and mounting base 12, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A safe centrifugal fan, comprising a fan body (1), wherein the fan body (1) has an air inlet channel for inlet air and an air outlet channel for outlet air, and a mounting component (2) is fixedly disposed on the fan body (1) at the air inlet channel, characterized in that, The mounting component (2) is provided with a mounting baffle (3), which has four openings for air intake. The mounting component (2) is provided with a filter element (4) for filtration. The mounting baffle (3) is fixedly provided with a mounting rod (5) for installing the filter element (4), and the filter element (4) can rotate circumferentially on the mounting rod (5). The upper end of the mounting component (2) is provided with two fixing parts (6), and each of the two fixing parts (6) is provided with a positioning component (7) for positioning the filter element (4). The filter element (4) is provided with two positioning parts (8), which are integrally formed with the filter element (4). The positioning component (7) consists of a positioning rod (9) and a return spring (10). The two fixing parts (6) are provided with mounting grooves for the positioning rod (9) to slide up and down. The positioning parts (8) are provided with positioning holes for the positioning rod (9) to partially engage.

2. A safe centrifugal fan according to claim 1, characterized in that, The filter element (4) is provided with an air inlet that matches the opening on the mounting baffle (3), and a filter screen (11) is provided at each of the four air inlets.

3. A safe centrifugal fan according to claim 1, characterized in that, The positioning rod (9) is provided with a sliding part, one end of the reset spring (10) is connected to the sliding part, and the other end is connected to the fixed part (6). One end of the positioning rod (9) extends out of the fixed part (6) and is connected to a pull rod.

4. A safe centrifugal fan according to claim 1, characterized in that, The mounting component (2) is provided with a connecting ring, which is fixedly installed on the fan body (1) by fixing bolts.

5. A safe centrifugal fan according to claim 1, characterized in that, The rear end of the fan body (1) is fixedly provided with a mounting base (12), which is fixed to the fan body (1) by fixing bolts.

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