Centrifugal fan with protective net convenient to disassemble and assemble

Abstract

The utility model provides a centrifugal fan with a protective net convenient to disassemble and assemble, and belongs to the technical field of fans. The problem that an existing protective net is inconvenient to maintain in the later period is solved. The centrifugal fan with the protective net convenient to disassemble and assemble comprises a fan body with an air outlet and an air inlet and a driving motor, the protective net is arranged at the air inlet, a first connecting part is arranged at the air inlet, a second connecting part matched with the first connecting part is arranged on the protective net, and a clamping mechanism is arranged on the inner wall of the first connecting part. A movable space for the clamping mechanism to move is formed in the first connecting part, the clamping mechanism comprises a clamping spring and a clamping block, a clamping part matched with the clamping block is arranged at the upper end of the second connecting part, and an unlocking piece is movably arranged between the first connecting part and the second connecting part. The utility model has the advantage of convenient maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of fan technology, and relates to a centrifugal fan, and particularly to a centrifugal fan with a convenient detachable and assembled protective net. Background Technology

[0002] A fan 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.

[0003] Because the protective netting at the air inlet of the fan is very prone to accumulating dust during use, it needs to be cleaned frequently. If it is damaged, it also needs to be replaced. The existing protective netting at the air inlet of the fan is connected to the shell by several fixing bolts, which makes disassembly time-consuming and laborious, resulting in inconvenient maintenance, delaying work efficiency and failing to meet the production needs of enterprises. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a centrifugal fan with a convenient and easy-to-maintain protective net that can be easily disassembled and installed.

[0005] The objective of this utility model can be achieved through the following technical solution: A centrifugal fan with a convenient detachable and detachable protective net, comprising a fan body having an air outlet and an air inlet and a drive motor, characterized in that a protective net is provided at the air inlet, a connecting part one is provided at the air inlet, a connecting part two is provided on the protective net to cooperate with the connecting part one, a snap-fit ​​mechanism is provided on the inner wall of the connecting part one, an active space is provided in the connecting part one for the snap-fit ​​mechanism to move, the snap-fit ​​mechanism includes a snap-fit ​​spring and a snap-fit ​​block, a snap-fit ​​part cooperating with the snap-fit ​​block is provided at the upper end of the connecting part two, and an unlocking element is movably provided between the connecting part one and the connecting part two.

[0006] In the centrifugal fan with a convenient detachable and detachable protective net, the inner wall of the first connecting part is provided with a limiting part that restricts the second connecting part.

[0007] In the centrifugal fan with a convenient protective netting described above, the snap-fit ​​block is provided with a guide for easy pressing of the unlocking component.

[0008] Compared with the prior art, this utility model enables the fan and the protective net to be quickly connected through the cooperation of the snap-fit ​​mechanism and the snap-fit ​​part, reducing the process of slowly installing bolts one by one. The unlocking part can quickly separate the fan and the protective net, reducing the time for later disassembly and maintenance and improving the customer's user experience. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0010] Figure 2 This is a partial cross-sectional structural schematic diagram of the present invention.

[0011] Figure 3 This is a partially enlarged structural diagram of point A of this utility model.

[0012] In the diagram, 1 is the air outlet; 2 is the air inlet; 3 is the main body of the fan; 4 is the protective net; 5 is the first connecting part; 6 is the second connecting part; 7 is the snap-fit ​​mechanism; 8 is the movement space; 9 is the snap-fit ​​spring; 10 is the snap-fit ​​block; 11 is the snap-fit ​​part; 12 is the unlocking part; 13 is the limiting part; 14 is the guide part; and 15 is the drive motor. Detailed Implementation

[0013] 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.

[0014] like Figure 1 As shown, this centrifugal fan with easy-to-install and disassemble protective net 4 includes a fan body 3 with an air outlet 1 and an air inlet 2 and a drive motor 15. A protective net 4 is provided at the air inlet 2, and a connecting part 1 5 is provided at the air inlet 2. A connecting part 2 6 is provided on the protective net 4 to cooperate with the connecting part 1 5. A snap-fit ​​mechanism 7 is provided on the inner wall of the connecting part 1 5. An active space 8 is provided in the connecting part 1 5 for the snap-fit ​​mechanism 7 to move. The snap-fit ​​mechanism 7 includes a snap-fit ​​spring 9 and a snap-fit ​​block 10. A snap-fit ​​part 11 is provided at the upper end of the connecting part 2 6 to cooperate with the snap-fit ​​block 10. An unlocking member 12 is movably provided between the connecting part 1 5 and the connecting part 2 6.

[0015] To elaborate further, a limiting part 13 that restricts the connection part 2 6 is provided on the inner wall of the connecting part 1 5.

[0016] To elaborate further, the snap-fit ​​block 10 is provided with a guide portion 14 for easy pressing of the unlocking member 12.

[0017] Working principle: During disassembly, push the unlocking part 12, and through the guide part 14 of the locking block 10, the unlocking part 12 presses the locking block 10 into the movable space 8, so that the locking block 10 no longer cooperates with the locking part 11, thereby losing the constraint on the connecting part 6. Then, the protective net 4 and the unlocking part 12 are taken out together, making disassembly more convenient. During installation, simply put them in the correct positions. The locking part 11 will press the locking part 11 into the movable space 8 until the locking part 11 passes the locking block 10 and abuts against the limiting part 13. After the locking block 10 loses its constraint, it automatically resets under the force of the locking spring 9 to form a locking with the locking part 11, completing the installation.

[0018] 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.

[0019] Although this document frequently uses terms such as air outlet 1, air inlet 2, fan body 3, protective net 4, connecting part one 5, connecting part two 6, snap-fit ​​mechanism 7, moving space 8, snap-fit ​​spring 9, snap-fit ​​block 10, snap-fit ​​part 11, unlocking part 12, limiting part 13, guide part 14, and drive motor 15, 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 kind of additional limitation would contradict the spirit of this utility model.

Claims

1. A centrifugal fan with a conveniently detachable protective net, comprising a fan body (3) having an air outlet (1) and an air inlet (2) and a drive motor (15), characterized in that, A protective net (4) is provided at the air inlet (2), a connecting part one (5) is provided at the air inlet (2), a connecting part two (6) is provided on the protective net (4) to cooperate with the connecting part one (5), a snap-fit ​​mechanism (7) is provided on the inner wall of the connecting part one (5), an active space (8) is provided in the connecting part one (5) for the snap-fit ​​mechanism (7) to move, the snap-fit ​​mechanism (7) includes a snap-fit ​​spring (9) and a snap-fit ​​block (10), a snap-fit ​​part (11) is provided at the upper end of the connecting part two (6) to cooperate with the snap-fit ​​block (10), and an unlocking part (12) is movably provided between the connecting part one (5) and the connecting part two (6).

2. The centrifugal fan with a conveniently detachable and assembled protective net according to claim 1, characterized in that, The inner wall of the connecting part one (5) is provided with a limiting part (13) that restricts the connecting part two (6).

3. A centrifugal fan with a conveniently detachable and assembled protective net according to claim 1, characterized in that, The snap-fit ​​block (10) is provided with a guide (14) for easy pressing of the unlocking member (12).

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