Double-air-inlet square cabinet type centrifugal fan

Abstract

The utility model relates to the technical field of centrifugal fans, in particular to a double-air-inlet square cabinet type centrifugal fan which comprises a cabinet body and a fan body, a cabinet door with a through hole is arranged on the cabinet body in a matched mode, an abutting plate is fixedly arranged in the cabinet body, and a mounting frame movably abutting against the abutting plate is arranged in the cabinet body. According to the dust collection device, the mounting frame and the abutting plate are subjected to abutting limiting, and the first piston rod extends into the limiting hole under the elastic action of the spring through the elastic action of the spring, so that compared with the prior art that the dust collection plate is fixed and limited, one end of the mounting frame is fixed and limited through the abutting plate in the technical scheme; the other end of the mounting frame is fixed and limited through connection of a first piston rod and a limiting hole, a partition plate and a dust collection plate can be slidably mounted through cooperation of a guide groove and a storage groove, the dust collection plate is abutted and limited through a cabinet door and the partition plate, and then the stability of the dust collection plate is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a double-air-inlet square cabinet-type centrifugal fan. Background Art

[0002] Centrifugal fans are machines that rely on input mechanical energy to increase gas pressure and discharge gas. They are a type of driven fluid machinery. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draft of boilers and industrial furnaces.

[0003] The prior art mostly adopts a cabinet-type centrifugal fan box proposed by Chinese application number CN202022685570.2. The beneficial effects of the utility model are: there are four mounting holes, and the sealing plate and the box body are detachably connected by bolts and mounting holes, which is convenient for disassembling and assembling the sealing plate. The dust collecting plate is a three-layer plate structure, and the dust collecting plate is removably connected in the box body, which is convenient for filtering and adsorbing the gas. The casing has a symmetrical structure, and the air outlet is arranged in the center of the upper end of the casing and connected to the two air outlet ducts, which improves the centrifugal wind force and exhausts air efficiently at the same time.

[0004] In the above technical solution, the dust collecting plate is directly placed in the box to cooperate with the fan to work, but the fan will generate vibration when it is working, and there is no limiting measure for the dust collecting plate in the box, so that the dust collecting plate moves in the box. When the dust collecting plate moves, it will collide with the internal structure of the box, thereby having a negative impact on the service life of the box. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the dust collecting plate collides with the internal structure of the box body when in motion, thus affecting the service life of the box body, and proposes a double-inlet square cabinet-type centrifugal fan.

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

[0007] A double-inlet square cabinet centrifugal fan comprises a cabinet body and a fan body, the cabinet body is matched with a cabinet door with a through hole, a resistance plate is fixedly arranged in the cabinet body, a mounting frame that can movably resist the resistance plate is arranged in the cabinet body, a receiving groove and a guide groove are arranged on the mounting frame, a partition plate is slidably mounted in the receiving groove, and a dust collecting plate that can movably resist the partition plate is slidably mounted on the guide groove;

[0008] The mounting frame is provided with a limiting hole, and the cabinet is provided with a fixing mechanism for fixing the mounting frame through the limiting hole.

[0009] Preferably, the abutment plate is a long rectangular structure, and the abutment plate is arranged at upper and lower sides of the cabinet.

[0010] Preferably, the receiving groove is longitudinally opened at the inner wall position of the mounting frame, and the guide groove is transversely opened at the inner wall position of the mounting frame.

[0011] Preferably, the fixing mechanism comprises an air pressure tube fixedly connected to the cabinet, the upper and lower ends of the air pressure tube are slidably mounted with a first piston rod and a second piston rod, and a spring is welded between the first piston rod and the air pressure tube.

[0012] Preferably, the air pressure tube is a hollow cylindrical structure with upper and lower openings, and the spring is horizontally movably sleeved on the first piston rod.

[0013] Preferably, a movable through hole for slidingly fitting the lower end of the second piston rod is provided on the cabinet body, and the limiting hole is correspondingly arranged to the movable through hole.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] In the utility model, the mounting frame and the contact plate are contacted and limited, and through the elastic force of the spring, the first piston rod extends to the limiting hole under the elastic force of the spring. Compared with the prior art, the dust collecting plate is fixed and limited. In the present technical scheme, one end of the mounting frame is fixed and limited by the contact plate, and the other end of the mounting frame is fixed and limited by the connection between the first piston rod and the limiting hole. The partition plate and the dust collecting plate can be slidably installed in conjunction with the guide groove and the storage groove, and the dust collecting plate is contacted and limited by the cabinet door and the partition plate, thereby ensuring the stability of the dust collecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a double-inlet square cabinet-type centrifugal fan proposed by the utility model;

[0017] Figure 2 This is a top cross-sectional view of a double-inlet square cabinet-type centrifugal fan proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of a partition structure of a double-inlet square cabinet-type centrifugal fan proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the dust collecting plate structure of a double-inlet square cabinet centrifugal fan proposed by the utility model;

[0020] Figure 5 This is a schematic diagram of the fixing mechanism structure of a double-inlet square cabinet-type centrifugal fan proposed by the utility model;

[0021] Figure 6 For this utility model Figure 5 Schematic diagram of the cross-sectional structure.

[0022] In the figure: 1. cabinet body; 2. fan body; 3. cabinet door; 4. contact plate; 5. mounting frame; 6. storage slot; 7. guide slot; 8. partition; 9. dust collecting plate; 10. limit hole; 11. air pressure pipe; 12. first piston rod; 13. second piston rod; 14. spring. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1-Figure 6 A double-inlet square cabinet centrifugal fan comprises a cabinet body 1 and a fan body 2, wherein the cabinet body 1 is provided with a cabinet door 3 with a through hole;

[0025] A resisting plate 4 is fixedly arranged in the cabinet 1. The resisting plate 4 is a long rectangular structure and is arranged at the upper and lower sides of the cabinet 1. A mounting frame 5 that can flexibly resist the resisting plate 4 is arranged in the cabinet 1.

[0026] The mounting frame 5 is provided with a receiving groove 6 and a guide groove 7. The receiving groove 6 is longitudinally provided at the inner wall of the mounting frame 5, and the guide groove 7 is transversely provided at the inner wall of the mounting frame 5. A partition plate 8 is slidably mounted in the receiving groove 6, and a dust collecting plate 9 movably opposed to the partition plate 8 is slidably mounted on the guide groove 7. The partition plate 8 and the dust collecting plate 9 are placed in the receiving groove 6 and the guide groove 7, so that the dust collecting plate 9 can be removed separately, which helps to ensure the use effect of the dust collecting plate 9.

[0027] The mounting frame 5 is provided with a limit hole 10, and the cabinet 1 is provided with a fixing mechanism for fixing the mounting frame 5 through the limit hole 10. The one side of the mounting frame 5 is limited by the contact plate 4, and the other side of the mounting frame 5 is fixed and limited by the fixing mechanism, which helps to ensure the stability of the mounting frame 5 in the cabinet 1.

[0028] It is further explained that: the fixing mechanism includes an air pressure tube 11 fixedly connected to the cabinet 1, the air pressure tube 11 is a hollow cylindrical structure with upper and lower openings, and the upper and lower ends of the air pressure tube 11 are respectively slidably mounted with a first piston rod 12 and a second piston rod 13, and the air pressure tube 11 can be sealed by the first piston rod 12 and the second piston rod 13, and the first piston rod 12 can drive the second piston rod 13 to be vertically lifted and lowered by the air pressure force;

[0029] The cabinet body 1 is provided with an active through hole for slidingly fitting the lower end of the second piston rod 13, and the active through hole can provide a movable space for the vertical movement of the second piston rod 13. It should be noted that: when the contact plate 4 and one side of the mounting frame 5 are movably contacted, the limit hole 10 and the active through hole are correspondingly arranged, so that the second piston rod 13 can extend into the limit hole 10 through the active through hole, thereby completing the limited installation operation of the mounting frame 5. A spring 14 is welded between the first piston rod 12 and the air pressure tube 11, and the spring 14 is horizontally movably fitted on the first piston rod 12. Through the elastic force of the spring 14, the first piston rod 12 can be reset without external force.

[0030] The functional principle of the utility model can be explained through the following operation modes:

[0031] The first piston rod 12 is lifted to drive the second piston rod 13 to move vertically upward, and the first piston rod 12 drives the spring 14 to contract the structure, the partition 8 is placed in the storage groove 6, and the dust collecting plate 9 is slidably fitted in the guide groove 7, so that the dust collecting plate 9 and the partition 8 are in active contact, and the dust collecting plate 9 and the partition 8 are installed in sequence according to the above operation;

[0032] Open the cabinet door 3, and push the mounting frame 5 into the cabinet body 1, so that the mounting frame 5 and the abutment plate 4 can be movably abutted against each other;

[0033] The first piston rod 12 is released, and under the elastic force of the spring 14 , the first piston rod 12 drives the second piston rod 13 to reset, and the lower end of the second piston rod 13 enters the limiting hole 10 .

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-inlet square cabinet centrifugal fan, comprising a cabinet (1) and a fan body (2), characterized in that: The cabinet body (1) is provided with a cabinet door (3) with a through hole, a contact plate (4) is fixedly provided in the cabinet body (1), a mounting frame (5) movably abutting against the contact plate (4) is provided in the cabinet body (1), a storage groove (6) and a guide groove (7) are provided on the mounting frame (5), a partition plate (8) is slidably mounted in the storage groove (6), and a dust collecting plate (9) movably abutting against the partition plate (8) is slidably mounted on the guide groove (7); The mounting frame (5) is provided with a limiting hole (10), and the cabinet (1) is provided with a fixing mechanism for fixing the mounting frame (5) via the limiting hole (10).

2. A double-inlet square cabinet centrifugal fan according to claim 1, characterized in that: The abutment plate (4) is a long rectangular structure, and the abutment plate (4) is arranged at the upper and lower sides of the cabinet (1).

3. A double-inlet square cabinet centrifugal fan according to claim 1, characterized in that: The receiving groove (6) is longitudinally opened at the inner wall position of the mounting frame (5), and the guide groove (7) is transversely opened at the inner wall position of the mounting frame (5).

4. A double-inlet square cabinet centrifugal fan according to claim 1, characterized in that: The fixing mechanism comprises an air pressure tube (11) fixedly connected to the cabinet (1), the upper and lower ends of the air pressure tube (11) are respectively slidably mounted with a first piston rod (12) and a second piston rod (13), and a spring (14) is welded between the first piston rod (12) and the air pressure tube (11).

5. A double-inlet square cabinet centrifugal fan according to claim 4, characterized in that: The air pressure tube (11) is a hollow cylindrical structure with upper and lower openings, and the spring (14) is horizontally movably sleeved on the first piston rod (12).

6. A double-inlet square cabinet centrifugal fan according to claim 4, characterized in that: The cabinet (1) is provided with a movable through hole for slidingly fitting the lower end of the second piston rod (13), and the limiting hole (10) is arranged corresponding to the movable through hole.

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