Exhaust fan unit convenient to disassemble and maintain

Abstract

The utility model discloses an exhaust fan unit convenient to disassemble and maintain, which belongs to the technical field of exhaust fan units and is characterized by comprising a base, a fan mounting seat is fixedly mounted at the center of the base, and a left shell and a right shell are rotatably mounted on the base. A fixing assembly used for fixing the left shell and the right shell is installed at the top of the base, a groove is formed in the top of the base, a sealing cover is arranged at a groove opening of the groove, a sliding groove is formed in the side wall of the groove, the fixing assembly comprises a supporting frame, a clamping block, an abutting block and clamping grooves formed in the side wall of the left shell and the side wall of the right shell, and a cavity is formed above the clamping grooves. The upper surface of the left shell and the upper surface of the right shell are provided with circular holes communicated with the cavities and the clamping grooves, clamping heads are installed in the circular holes and the cavities in a sliding mode, springs are arranged between the clamping heads and the bottom faces of the cavities, abutting rods are connected to the positions, over the circular holes, of the supporting frame in a threaded mode, and the clamping blocks are provided with the circular grooves.

Description

TECHNICAL FIELD

[0001] The utility model belongs to exhaust fan unit technical field, more specifically, it relates to a kind of exhaust fan unit of convenient disassembly and maintenance. BACKGROUND

[0002] Exhaust fan unit is used to discharge indoor exhaust gas or pollutant equipment, usually by fan, air duct, control system, filter screen, support or mounting rack and sound insulation material and other components.Exhaust fan unit generates airflow by fan, guides indoor exhaust gas or pollutant to outdoor, to keep indoor air fresh and environment comfortable, wherein filter screen can filter the particulate matter or pollutants in the exhaust gas discharged, protect environment and equipment.

[0003] Exhaust fan unit in prior art, a large number of bolts need to be disassembled when disassembling and repairing, operation is cumbersome, affect maintenance efficiency, and the shell of exhaust fan in prior art is mostly integrally formed, cannot be quickly opened and closed, leading to the inconvenience of internal component inspection and cleaning. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims at providing an exhaust fan unit convenient to disassemble and maintain, which has the advantages of convenient disassembly and maintenance of shell.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An exhaust fan unit convenient to disassemble and maintain, comprising a base, a fan mounting seat is fixedly installed at the center of the base, a left shell and a right shell are rotatably installed on the base, an air inlet is arranged on the left shell, an air outlet is arranged on the right shell, a motor is installed on the fan mounting seat, a fan blade is installed on the output end of the motor, and the fan blade is arranged towards the air inlet, a first mounting seat and a second mounting seat are respectively installed on the left and right sides of the fan mounting seat, a first filter plate and a second filter plate are slidably installed in the first mounting seat, and a third filter plate is slidably installed on the second mounting seat.

[0007] The top of the base is provided with a fixing assembly for fixing the left and right shells, the top of the base is provided with a recess, the opening of the recess is provided with a cover, and the side wall of the recess is provided with a sliding groove; the fixing assembly comprises a support frame, a clamping block slidingly installed in the sliding groove, an abutting block installed in the recess, a clamping groove formed in the side wall of the left and right shells, a cavity formed above the clamping groove, a circular hole formed in the upper surface of the left and right shells and communicating with the cavity and the clamping groove, a clamping head slidingly installed in the circular hole and the cavity, a spring arranged between the clamping head and the bottom surface of the cavity, one end of the abutting block rotatably installed in the recess, the other end of the abutting block rotatably installed on the support frame, an abutting rod threadedly connected to the support frame and located directly above the circular hole, and a circular groove formed in the clamping block.

[0008] According to the scheme, the abutting rod on the support frame is loosened when the exhaust fan unit needs to be disassembled and repaired, the clamping head moves upward under the action of the spring and moves out of the circular groove on the clamping block, the abutting block is rotated, the distal end of the abutting block is away from the abutting block, the abutting block is retracted from the clamping groove into the recess, and finally the left and right shells are rotated to quickly open the shells, thereby facilitating the disassembly and repair of the exhaust fan unit.

[0009] The utility model further sets up: the inside wall of recess is provided with guide rail groove, the side wall of clamping block is installed with guide rail block.

[0010] According to the scheme, the guide rail groove and the guide rail block are arranged, so that the clamping block is more stable in the recess and moves stably.

[0011] The utility model further sets up: the bottom of recess is equipped with two vertical boards, the both side walls of vertical board are equipped with elastic rope, one end of elastic rope is fixed in the side wall of vertical board, the other end is fixed in the side wall of clamping block.

[0012] According to the scheme, the distal end of the abutting block is away from the abutting block by rotating the abutting block, and the abutting block is quickly retracted from the clamping groove into the recess under the action of the vertical board and the elastic rope, so that the efficiency of disassembly is improved.

[0013] The utility model further sets up: be equipped with fixed column on the base, the fixed plate is rotatably installed on the left shell and the right shell, and the fixed nut is arranged on the fixed column.

[0014] According to the advantages of the scheme, at least the following advantages are obtained: under the action of the fixing column, the fixing plate and the fixing nut, the left shell and the right shell can be stably connected, the stability of the overall structure is enhanced, the possibility of shaking and deformation is reduced, the fixing plate and the fixing column can be connected or disassembled conveniently and quickly through the design of the fixing nut, time is saved, and the operation process is simplified.

[0015] The utility model further sets up: the gap at the base and left shell and right shell contact is pasted with sealing strip.

[0016] According to the advantages of the scheme, at least the following advantages are obtained: through pasting the sealing strip at the gap, the sealing strip can not only prevent gas from running out of the gap, ensure that the equipment maintains a good sealing state during work, but also effectively prevent dust, moisture and other impurities from entering.

[0017] The utility model further sets up: be equipped with handle on left shell and right shell, be equipped with flexible member on handle.

[0018] According to the advantages of the scheme, at least the following advantages are obtained: the handle provides good holding for the maintenance personnel to open the shell, the flexible member has good friction, can effectively prevent hand from slipping, and can provide good comfortable holding feeling for the maintenance personnel.

[0019] According to the advantages of the scheme, at least the following advantages are obtained:

[0020] 1. By setting the left shell, the right shell and the fixing assembly, when the exhaust fan unit needs to be disassembled and repaired, the abutting rod on the support frame is loosened, the clamping head moves upward under the action of the spring, and the circular groove on the clamping block is removed, the abutting block is rotated, the distal end of the abutting block is away from the abutting block, so that the abutting block is retracted into the groove from the clamping groove, and finally the left and right shells are rotated to quickly open the shell, facilitating the disassembly and repair of the exhaust fan unit.

[0021] 2. By setting the guide rail groove and the guide rail block, the clamping block is more stable in the recess for movement, ensuring the stability during movement.

[0022] 3. By setting the fixing column, the fixing plate and the fixing nut, under the action of the fixing column, the fixing plate and the fixing nut, the left shell and the right shell can be stably connected, the stability of the overall structure is enhanced, the possibility of shaking and deformation is reduced, the fixing plate and the fixing column can be connected or disassembled conveniently and quickly through the design of the fixing nut, time is saved, and the operation process is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the overall schematic diagram of the embodiment;

[0024] Figure 2 is a whole explosion schematic diagram of the embodiment;

[0025] Figure 3 is one of whole stereoscopic section schematic diagrams of the embodiment;

[0026] Figure 4 is Figure 3 is an enlarged schematic diagram of the middle A part;

[0027] Figure 5 is the second whole stereoscopic section schematic diagram of the embodiment;

[0028] Figure 6 is a whole schematic diagram of the abutting block in the embodiment;

[0029] Figure 7 is a whole schematic diagram of the clamping block in the embodiment.

[0030] The drawings show that the air exhaust fan unit comprises a base 1, a fan mounting seat 2, a left shell 3, a right shell 4, an air inlet 5, an air outlet 6, a motor 7, a fan blade 8, a first mounting seat 9, a first filter plate 901, a second filter plate 902, a second mounting seat 10, a third filter plate 1001, a fixing assembly 11, a supporting frame 1101, a clamping block 1102, an abutting block 1103, a clamping groove 1104, a cavity 1105, a round hole 1106, a clamping head 1107, an abutting rod 1108, a spring 1109, a recess 12, a sealing cover 13, a sliding groove 14, a guide rail groove 15, a guide rail block 16, a vertical plate 17, an elastic rope 18, a fixing column 19, a fixing plate 20, a fixing nut 21, a sealing strip 22, a handle 23 and a flexible piece 24. DETAILED DESCRIPTION

[0031] The utility model will be further explained in detail below in combination with the drawings.

[0032] A kind of air exhaust fan unit convenient to disassemble and maintain, such as Figure 1 , Figure 2As shown, the system includes a base 1, a fan mounting base 2 fixedly installed at the center of the base 1, a left housing 3 and a right housing 4 rotatably mounted on the base 1, an air inlet 5 on the left housing 3 and an air outlet 6 on the right housing 4, a motor 7 mounted on the fan mounting base 2, and a fan blade 8 mounted on the output end of the motor 7, with the fan blade 8 facing the air inlet 5. In some embodiments, to prevent dust from entering the motor 7 and thus affecting its lifespan, a dust cover (not shown in the figure) is installed on the outside of the motor 7. To prevent the dust cover from affecting the heat dissipation of the motor 7, a heat sink (not shown in the figure) is provided on the outer shell of the motor 7 and exposed outside the dust cover. In other embodiments, to increase the heat dissipation of the motor 7 inside the housing, a heat sink (not shown in the figure) is provided on the side wall of the fan mounting base 2, and the heat sink extends outside the base 1.

[0033] A first mounting base 9 and a second mounting base 10 are respectively installed on the left and right sides of the fan mounting base 2. A first filter plate 901 and a second filter plate 902 are slidably installed in the first mounting base 9, and a third filter plate 1001 is slidably installed on the second mounting base 10.

[0034] like Figure 1 As shown, in order to ensure that the left shell 3 and the right shell 4 can be stably connected and enhance the stability of the overall structure, in some embodiments, a fixing post 19 is provided on the base 1, and a fixing plate 20 is rotatably installed on both the left shell 3 and the right shell 4, and a fixing nut 21 is provided on the fixing post 19.

[0035] A sealing strip 22 is affixed to the gap where the base 1 contacts the left housing 3 and the right housing 4. The sealing strip 22 can not only prevent gas from escaping from the gap and ensure that the equipment maintains a good sealing state during operation, but also effectively prevent dust, moisture and other impurities from entering.

[0036] Handles 23 are provided on both the left housing 3 and the right housing 4. A flexible part 24 is provided on the handle 23. The handle 23 provides a good grip for maintenance personnel to open the housing, making it convenient for maintenance personnel to open the left housing 3 and the right housing 4. The flexible part 24 has good friction, which can effectively prevent the hand from slipping and provide maintenance personnel with a good and comfortable grip. The flexible part 24 is a rubber sheet wrapped around the handle 23.

[0037] like Figure 3 , Figure 4 , Figure 5 As shown, a fixing assembly 11 for fixing the left housing 3 and the right housing 4 is installed on the top of the base 1. A groove 12 is provided on the top of the base 1, and a sealing cap 13 is provided at the opening of the groove 12. A sliding groove 14 is provided on the side wall of the groove 12. The fixing assembly 11 includes: a support frame 1101 and a snap-fit ​​block 1102 slidably installed in the sliding groove 14 (see reference). Figure 7), an abutment block 1103 (refer to Figure 6 ), a clamping groove 1104 is opened on the side wall of the left shell 3 and the right shell 4, a cavity 1105 is arranged above the clamping groove 1104, a circular hole 1106 is opened on the upper surface of the left shell 3 and the right shell 4 and communicates with the cavity 1105 and the clamping groove 1104, a clamping head 1107 is slidably arranged in the cavity 1105 and the circular hole 1106, a spring 1109 is arranged between the clamping head 1107 and the bottom surface of the cavity 1105, one end of the abutment block 1103 is rotatably arranged in the recess 12, the other end is rotatably arranged on the support frame 1101, an abutment rod 1108 is threadedly connected on the support frame 1101 and located directly above the circular hole 1106, and a circular groove 1110 is arranged on the abutment block.

[0038] As shown in Figure 5 , in order to make the abutment block 1102 move more stably in the recess 12, a guide groove 15 is opened on the inner side wall of the recess 12 in some embodiments, and a guide block 16 is arranged on the side wall of the abutment block 1102.

[0039] As shown in Figure 5 , in some embodiments, in order to make the abutment block 1103 retract quickly from the clamping groove 1104 into the recess 12 and improve the disassembly efficiency, two vertical plates 17 are arranged at the bottom of the recess 12, elastic ropes 18 are arranged on the side walls of the vertical plates 17, one end of the elastic rope 18 is fixed to the side wall of the vertical plate 17, and the other end is fixed to the side wall of the abutment block 1102.

[0040] The working process and beneficial effects of the utility model are as follows:

[0041] When it is necessary to disassemble and maintain the exhaust fan unit, the sealing strip 22 at the gap is removed first, then the abutment rod 1108 on the support frame 1101 is loosened, the clamping head 1107 moves upward under the action of the spring 1109 and moves out of the circular groove 1110 on the abutment block, the abutment block 1103 is rotated, the distal end of the abutment block 1103 is away from the abutment block 1103, the abutment block 1103 is retracted from the clamping groove 1104 into the recess 12 under the action of the elastic rope 18 and the vertical plate 17, then the fixing nut 21 is loosened, the fixing of the fixing nut 21 to the fixing plate 20 is released, the fixing plate 20 is rotated down from the fixing column 19, and finally the left shell 3 and the right shell 4 are rotated to quickly open the shell, facilitating the disassembly and maintenance of the exhaust fan unit.

[0042] The above is only a preferred embodiment of the utility model and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. within the design concept of the utility model should be included in the protection scope of the utility model.

Claims

1. A kind of exhaust fan unit of easy disassembly maintenance, including base (1), fan mounting seat (2) is fixedly installed at the center of the base (1), it is characterized by: The left shell (3) and the right shell (4) are rotatably installed on the base (1), the left shell (3) is provided with an air inlet (5), the right shell (4) is provided with an air outlet (6), the motor (7) is installed on the fan mounting seat (2), the output end of the motor (7) is provided with a fan blade (8), and the fan blade (8) is arranged towards the air inlet (5), the first mounting seat (9) and the second mounting seat (10) are respectively installed on the left side and the right side of the fan mounting seat (2), the first filter plate (901) and the second filter plate (902) are slidably installed in the first mounting seat (9), and the third filter plate (1001) is slidably installed on the second mounting seat (10). The fixing assembly (11) for fixing the left shell (3) and the right shell (4) is installed on the top of the base (1), the recess (12) is formed in the top of the base (1), the slot of the recess (12) is provided with a sealing cover (13), the side wall of the recess (12) is provided with a sliding groove (14), the fixing assembly (11) comprises a supporting frame (1101), a clamping block (1102) slidably installed in the sliding groove (14), an abutting block (1103) installed in the recess (12), a clamping groove (1104) formed in the side wall of the left shell (3) and the right shell (4), a cavity (1105) arranged above the clamping groove (1104), a circular hole (1106) formed in the upper surface of the left shell (3) and the right shell (4) and communicating with the cavity (1105) and the clamping groove (1104), a clamping head (1107) slidably installed in the circular hole (1106) and the cavity (1105), a spring (1109) arranged between the clamping head (1107) and the bottom surface of the cavity (1105), one end of the abutting block (1103) is rotatably installed in the recess (12), the other end is rotatably installed on the supporting frame (1101), the abutting rod (1108) is threadedly connected to the supporting frame (1101) and located directly above the circular hole (1106), and a circular groove (1110) is arranged on the clamping block.

2. The exhaust fan assembly of claim 1, wherein: The guide rail groove (15) is formed in the inner side wall of the recess (12), and the guide rail block (16) is installed on the side wall of the clamping block (1102).

3. The exhaust fan assembly of claim 2, wherein: The two standing plates (17) are arranged at the bottom of the recess (12), the elastic ropes (18) are arranged on the two side walls of the standing plates (17), one end of the elastic rope (18) is fixed to the side wall of the standing plate (17), and the other end is fixed to the side wall of the clamping block (1102).

4. The exhaust fan assembly of claim 3, wherein: The fixing column (19) is arranged on the base (1), the fixing plate (20) is rotatably installed on the left shell (3) and the right shell (4), and the fixing nut (21) is arranged on the fixing column (19).

5. The exhaust fan assembly of claim 4, wherein: The sealing strip (22) is attached to the gap between the base (1) and the left shell (3) and the right shell (4).

6. The exhaust fan assembly of claim 5, wherein: The handle (23) is arranged on the left shell (3) and the right shell (4), and the flexible piece (24) is arranged on the handle (23).

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