Efficient cabinet type centrifugal fan

Abstract

The utility model discloses an efficient cabinet type centrifugal fan which comprises a cabinet body. The motor is arranged on the outer wall of the cabinet body; the impeller is arranged in the cabinet body and is connected with an output shaft of the motor; an opening is formed in the side wall of the cabinet body, rotating shafts are symmetrically arranged at the opening, sealing doors are arranged on the rotating shafts and provided with ventilation openings, the ventilation openings are detachably provided with protection mechanisms, and the sealing doors are provided with locking mechanisms.

Description

TECHNICAL FIELD

[0001] The utility model belongs to centrifugal fan technical field, especially, a kind of high-efficiency cabinet centrifugal fan is involved. BACKGROUND

[0002] Cabinet centrifugal fan is also called cabinet fan, it is a kind of high-efficiency, low-noise cabinet centrifugal fan, with high temperature resistance, excellent performance, novel compact structure, small vibration, light weight and easy to install and use etc.Advantages.It is widely used in hotel, restaurant, auditorium, cinema, basement, factory and mine enterprise, office building and other places needing ventilation and smoke exhaust.

[0003] Patent CN202021657495.2 discloses a cabinet centrifugal fan, including fan body, the air inlet of the fan body is equipped with intercepting mechanism;The intercepting mechanism includes two symmetrically arranged fixed bodies, two opposite sides of the two fixed bodies are provided with insertion slot, recess is further provided on the fixed body, two through holes are symmetrically provided on the two side walls of the recess;The cabinet centrifugal fan is equipped with intercepting mechanism, i.e.rectangular frame is fixed between two fixed bodies, under the mutual cooperation of first spring, slide bar, pull ring and connecting plate, the end of slide bar is inserted into insertion hole to limit rectangular frame, so that the disassembly of rectangular frame is facilitated, so that the cleaning and maintenance of the screen are facilitated;The design changes the installation mode of traditional screen, and the design facilitates the cleaning and maintenance of the screen.

[0004] In the above patent, when the inside of the fan is overhauled, the intercepting mechanism needs to be removed first, which is very inconvenient. INVENTION CONTENTS

[0005] The summary portion of the present application is used to introduce the concept in a brief form, which will be described in detail in the following specific embodiment portion.The summary portion of the present application is not intended to identify key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] In order to solve the technical problems mentioned in the background part, some embodiments of the present application provide a kind of high-efficiency cabinet centrifugal fan, including:

[0007] Cabinet body;

[0008] Motor, is located on the outer wall of cabinet body;

[0009] Impeller, is located in cabinet body, and is connected with the output shaft of motor;

[0010] Open is provided on the side wall of cabinet body, and symmetrically provided with rotating shaft at opening, rotating shaft is provided with sealing door, sealing door is provided with ventilation opening, ventilation opening is detachably provided with protection mechanism, sealing door is provided with locking mechanism.

[0011] Preferably, the locking mechanism comprises a sliding groove arranged on the sealing door, a locking plate arranged in the sliding groove, and a control device for controlling the up-and-down movement of the locking plate, and the cabinet body is provided with a locking groove matched with the locking plate.

[0012] Preferably, the control device comprises a mounting cavity arranged in the sealing door, a connecting shaft arranged in the mounting cavity, a rotating disc arranged on the connecting shaft, a connecting rod arranged on the rotating disc, a reset member arranged on the connecting shaft, and a rotating handle arranged on the connecting shaft, one end of the connecting rod being rotatably connected to the rotating disc and the other end being rotatably connected to the locking plate.

[0013] Preferably, the reset member is a torsion spring, one torsion arm of which is fixed to the connecting shaft and the other torsion arm is fixed to the inner wall of the mounting cavity.

[0014] Preferably, the protection mechanism comprises a fixed frame, a protection net arranged in the fixed frame, and a locking device, the fixed frame being provided with a plug-in groove matched with the air vent.

[0015] Preferably, the locking device comprises a push plate arranged on the sealing door, a pressing block arranged on the push plate, a mounting groove arranged in the sealing door, a locking rod arranged on the sealing door, a first baffle arranged on the locking rod, a first elastic member sleeved on the locking rod, a second baffle arranged on the push plate, and a second elastic member sleeved on the push plate, the fixed frame being provided with a locking hole matched with the locking rod, the locking rod being slidable up and down relative to the sealing door, and the push plate being slidable back and forth relative to the sealing door.

[0016] Preferably, the end of the locking rod is provided with a ball, and the pressing block is provided with a clamping groove matched with the ball.

[0017] Preferably, the pressing block is provided with an inclined surface.

[0018] Preferably, the side wall of the cabinet body is provided with a fixed plate, and the motor is provided with a fixing seat connected to the fixed plate by screws.

[0019] Preferably, the side wall of the sealing door is provided with a sealing strip.

[0020] The application provides a high-efficiency cabinet-type centrifugal fan convenient for maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0022] In addition, throughout the drawings, same or similar reference numerals are used to denote same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn to scale.

[0023] In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a partial structural schematic diagram of the present invention.

[0026] Figure 3 for Figure 2 A sectional view.

[0027] Figure 4 for Figure 3 A magnified view of point A.

[0028] Figure 5 This is a partial structural diagram of the protective mechanism of this utility model.

[0029] Figure 6 This is a schematic diagram of the structure and configuration of the control device of this utility model. Detailed Implementation

[0030] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0031] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0032] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0033] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0034] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] like Figures 1-6As shown, a high-efficiency cabinet centrifugal fan, including cabinet 1, motor 2, impeller, shaft, sealing door 4, protection mechanism 5 and locking mechanism 6, the opening is provided on the side wall of cabinet 1; the bottom of motor 2 is fixed with fixed seat 21, the side wall of cabinet 1 is fixed with fixed plate 22, the fixed seat can be fixed on the fixed plate through screw 23; the impeller is arranged in the cabinet, which is connected with the output shaft of motor 2; the shaft is symmetrically fixed at the opening; the sealing door 4 is rotatably connected at the shaft, which can seal the opening, and the sealing door 4 is provided with a ventilation opening; the protection mechanism 5 is detachably connected at the ventilation opening; the locking mechanism 6 is used for locking the sealing door, then when it is necessary to overhaul, the sealing door can be unlocked through the locking mechanism, and then the sealing door is rotated, so that the opening is opened to facilitate the overhaul of the inside of the cabinet, without disassembling the protection mechanism.

[0036] Specifically, the locking mechanism 6 includes a sliding groove, a locking plate 61 and a control device for controlling the up and down movement of the locking plate, the sliding groove is provided on the sealing door, which can be inserted and slid up and down, the cabinet 1 is provided with a locking slot for inserting the locking plate; the control device includes a mounting cavity, a connecting shaft 63, a turntable 64, a connecting rod 65, a reset member 66 and a rotating handle 67, the mounting cavity is provided in the sealing door; the connecting shaft 63 is rotatably connected in the mounting cavity, and one end of the connecting shaft 63 extends out of the mounting cavity; the turntable 64 is fixed on the connecting shaft; one end of the connecting rod 65 is rotatably connected to the turntable, and the other end is rotatably connected to the locking plate; the reset member 66 is a torsional spring, which is sleeved on the connecting shaft, and one torsional arm is fixed on the connecting shaft, and the other torsional arm is fixed on the inner wall of the mounting cavity; the rotating handle 67 is fixed on the end of the connecting shaft, then after closing the sealing door, rotating the rotating handle drives the turntable to rotate, and then drives one end of the connecting rod to move, thereby pushing the locking plate to move upwards and inserting into the locking slot, completing the fixation of the sealing door, when it is necessary to open the sealing door, the rotating handle is rotated in the opposite direction, driving the locking plate to move out of the locking slot, and then the sealing door is opened outward.

[0037] Specifically, the protection mechanism 5 comprises a fixed frame 51, a protection net 52 and a locking device, the protection net 52 is fixed in the fixed frame; the fixed frame 51 is provided with a plug-in slot 511 matched with the air vent; the locking device comprises a push plate 53, a pressing block 54, a mounting slot 55, a locking rod 56, a first baffle 58, a first elastic member 59, a second baffle 50, a second elastic member 531 and a ball 561, the push plate 53 is arranged on the sealing door and can slide forward and backward relative to the sealing door; the pressing block 54 is fixed on the push plate and is provided with an inclined surface; the mounting slot 55 is arranged in the sealing door; the locking rod 56 is arranged on the sealing door and can slide up and down relative to the sealing door, and one end of the locking rod 56 can abut against the pressing block, the fixed frame is provided with a locking hole matched with the locking rod; the first baffle 58 is fixed on the locking rod; the first elastic member 59 is selected from a spring, the first elastic member 59 is sleeved on the locking rod, and one end of the first elastic member 59 is fixed on the first baffle and the other end of the first elastic member 59 is fixed on the bottom of the mounting slot; the second baffle 50 is fixed on the push plate; the second elastic member 531 is selected from a spring, the second elastic member 531 is sleeved on the push plate, and one end of the second elastic member 531 is fixed on the second baffle and the other end of the second elastic member 531 is fixed on the sealing door; the ball 561 is rotatably connected to the end of the locking rod, and the pressing block is provided with a clamping slot matched with the ball, so that when the protection net needs to be disassembled, the push plate is pressed, the pressing block is moved above the locking rod, the first elastic member pushes the locking rod to move out of the locking hole, and then the fixed frame is pulled outwards to be taken out, which is very convenient to disassemble.

[0038] In other embodiments, the sealing door 4 is provided with a sealing strip 41 on the side wall.

[0039] The above description is merely some preferred embodiments of the present disclosure and a description of the principles of the technology used. Those skilled in the art should understand that the scope of the application involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above inventive concept. For example, the above features are replaced with each other to form a technical solution with similar functions disclosed in the embodiments of the present disclosure (but not limited to).

Claims

1. A high-efficiency cabinet centrifugal fan, comprising: a cabinet body; a motor arranged on the outer wall of the cabinet body; an impeller arranged in the cabinet body and connected with the output shaft of the motor; characterized in that an opening is arranged on the side wall of the cabinet body, a rotating shaft is symmetrically arranged at the opening, a sealing door is arranged on the rotating shaft, the sealing door is provided with a ventilation opening, a protection mechanism is detachably arranged on the ventilation opening, and the sealing door is provided with a locking mechanism.

2. The high efficiency cabinet centrifugal fan of claim 1, wherein: The locking mechanism comprises a sliding groove arranged on the sealing door, a locking plate arranged in the sliding groove, and a control device for controlling the up-and-down movement of the locking plate, and the cabinet body is provided with a locking groove matched with the locking plate.

3. The high efficiency cabinet centrifugal fan of claim 2, wherein: The control device comprises a mounting cavity arranged in the sealing door, a connecting shaft arranged in the mounting cavity, a rotating disc arranged on the connecting shaft, a connecting rod arranged on the rotating disc, a reset member arranged on the connecting shaft, and a rotating handle arranged on the connecting shaft, one end of the connecting rod is rotatably connected to the rotating disc, and the other end is rotatably connected to the locking plate.

4. The high efficiency cabinet centrifugal fan of claim 3, wherein: The reset member is a torsional spring, one torsional arm of which is fixed to the connecting shaft, and the other torsional arm is fixed to the inner wall of the mounting cavity.

5. The high efficiency cabinet centrifugal fan of claim 1, wherein: The protection mechanism comprises a fixed frame, a protection net arranged in the fixed frame, and a locking device, and the fixed frame is provided with a plug-in groove matched with the ventilation opening.

6. The high efficiency cabinet centrifugal fan of claim 5, wherein: The locking device comprises a push plate arranged on the sealing door, a pressing block arranged on the push plate, a mounting groove arranged in the sealing door, a locking rod arranged on the sealing door, a first baffle arranged on the locking rod, a first elastic member sleeved on the locking rod, a second baffle arranged on the push plate, and a second elastic member sleeved on the push plate, the fixed frame is provided with a locking hole matched with the locking rod, the locking rod can slide up and down relative to the sealing door, and the push plate can slide forward and backward relative to the sealing door.

7. The high efficiency cabinet centrifugal fan of claim 6, wherein: The end of the locking rod is provided with a ball, and the pressing block is provided with a clamping groove matched with the ball.

8. The high efficiency cabinet centrifugal fan of claim 6, wherein: The pressing block is provided with an inclined surface.

9. The high efficiency cabinet centrifugal fan of claim 1, wherein: The side wall of the cabinet body is provided with a fixed plate, the motor is provided with a fixing seat, and the fixing seat is connected to the fixed plate through screws.

10. The high efficiency cabinet centrifugal fan of claim 1, wherein: A sealing strip is arranged on the side wall of the sealing door.

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