Installation structure of air inlet screen plate for cross flow fan

Abstract

The utility model discloses a mounting structure of an air inlet screen plate for a cross flow fan, which comprises a volute, an impeller is arranged in the volute, a motor is arranged at one end of the volute, the output end of the motor is connected with one end of the impeller, and the air inlet screen plate is arranged on one side of the volute. A moving plate is manually pulled to move upwards, the moving plate moves to extrude a first spring, meanwhile, an inserting plate is driven to move along with movement of the moving plate, and at the moment, an air inlet net plate can be moved out of a fixing frame. When the air inlet net plate needs to be installed, the movable plate is pulled to move upwards, the fixed plate on one side of the air inlet net plate is inserted into the bottom of the fixed frame, the movable plate is loosened, the movable plate drives the insertion plate to be inserted into the rectangular through hole till the abutting part and the insertion groove make full contact, and therefore installation of the air inlet net plate is completed, operation is simple, and the installation efficiency is high. And a worker can disassemble and assemble conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cross flow fan, concretely relates to a mounting structure of air inlet net plate for cross flow fan. BACKGROUND

[0002] The cross flow fan is a kind of air cooling equipment, commonly used in elevator car, its inside is generally provided with rotating blade, when fan works, blade produces wind force and exports wind, realizes blowing work.Air inlet net plate is an important component of cross flow fan, it is usually located at the air inlet of fan.The filter screen on the air inlet net plate of traditional cross flow fan is usually difficult to disassemble, which is not conducive to the cleaning work of dust.Long-term accumulation of dust can affect the heat dissipation performance and operating efficiency of fan, and even can cause fan failure.

[0003] The patent document of Chinese utility model patent (authorized announcement number CN212838501U) discloses a kind of elevator cross flow fan, including volute, impeller, motor and terminal box, by being additionally provided filter screen plate on the air inlet side of volute, then filter screen plate and volute are set into detachable structure, facilitate later disassembly to replace internal sheet filter core, simultaneously, due to the additional filter screen plate, utilize sheet filter core in filter screen plate to filter the air entering the space in elevator, avoid the circulation flow of unfiltered air in the car in narrow space.

[0004] The above-mentioned elevator cross flow fan is provided with more than one elastic clasp on the two symmetrical edges of filter screen plate, and an extension part is provided on the two symmetrical edges of volute, which cooperates with the corresponding elastic clasp, so as to realize the quick disassembly of filter screen plate by the cooperation of elastic clasp and extension part at the edge of volute. However, when installing the filter screen plate, the elastic clasp and the extension part are prone to loosen due to vibration or external force, which is not firm enough. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a mounting structure of air inlet net plate for cross flow fan, which solves the technical problem of inconvenient disassembly of air inlet net plate by providing a disassembly component for quickly disassembling and assembling the air inlet net plate.

[0006] To solve the problems in the prior art, the utility model provides a mounting structure of air inlet net plate for cross flow fan, which includes a volute, an impeller arranged in the volute, a motor arranged at one end of the volute, an output end of the motor connected to one end of the impeller, an air inlet net plate arranged at one side of the volute, a disassembly component arranged between the air inlet net plate and the volute for quickly disassembling and assembling the air inlet net plate, an air outlet arranged at the bottom of the volute, an air dust filter core plate arranged in the air inlet net plate, and a press-fitting component arranged between the air dust filter core plate and the air inlet net plate for disassembling and replacing the air dust filter core plate.

[0007] Preferably, the disassembling component comprises a fixing frame; the fixing frame is arranged at the upper end and the lower end of the volute; the top of the fixing frame is provided with two groups of light poles, one end of the light pole is provided with a limiting disc, a moving plate is slidably arranged on the light pole, a first spring is sleeved on the light pole, one end of the first spring abuts against the top of the moving plate, the other end of the first spring abuts against the bottom of the limiting disc, the bottom of the moving plate is provided with an insertion plate, one end of the insertion plate is provided with an abutting portion, one side of the air inlet mesh plate is provided with a fixed plate, a rectangular through hole for the movement of the insertion plate is formed in the fixed plate, and the volute is further provided with an insertion slot capable of being inserted and matched with the abutting portion.

[0008] Preferably, the top of the moving plate is further provided with a pull handle.

[0009] Preferably, the pressing component comprises a sliding rod; a rectangular slot is formed in the inner side of the air inlet mesh plate, the sliding rod is horizontally arranged in the rectangular slot, a pressing plate is slidably arranged on the sliding rod, a second spring is further sleeved on the sliding rod, one end of the second spring abuts against one side of the pressing plate, and the other end of the second spring abuts against the inner wall of the rectangular slot.

[0010] Preferably, one side of the pressing plate is further provided with an extension rod.

[0011] Preferably, a rubber buffer layer is attached to the side of the pressing plate away from the extension rod.

[0012] Preferably, a filter screen is arranged at the air outlet.

[0013] The beneficial effects of the utility model compared with the prior art are:

[0014] 1. When the air inlet mesh plate needs to be disassembled, the staff manually pulls the moving plate to move upwards, the movement of the moving plate will extrude the first spring, at the same time, with the movement of the moving plate, the insertion plate is moved, so that the insertion plate is separated from the insertion slot and moves out of the rectangular through hole, at this time, the air inlet mesh plate can be moved out of the fixing frame, when the air inlet mesh plate needs to be installed, the moving plate is pulled to move upwards, the insertion plate is moved by the moving plate, at this time, the fixed plate on one side of the air inlet mesh plate is inserted into the bottom of the fixing frame, and the moving plate is loosened, the elastic deformation of the first spring is restored, the moving plate is moved, the insertion plate is inserted into the rectangular through hole by the moving plate until the abutting portion and the insertion slot are completely contacted, so that the installation of the air inlet mesh plate is completed, the operation is simple, and the staff can disassemble and assemble conveniently.

[0015] 2. When the air dust filter core plate needs to be installed, the worker first pulls the pressing plate, which slides on the slide rod and extrudes the second spring, at this time, the air dust filter core plate is placed between the pressing plate and the air inlet mesh plate, the pressing plate is loosened, the second spring restores the elastic deformation, and the pressing plate moves downward, so that the air dust filter core plate is tightly pressed inside the air inlet mesh plate, when disassembling, pulling the pressing plate can complete the disassembly of the air dust filter core plate, so that the worker can easily take out the air dust filter core plate from the air inlet mesh plate for cleaning or replacement operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the installation structure of the air inlet mesh plate for the cross-flow fan Figure 1 .

[0017] Figure 2 is a perspective view of the installation structure of the air inlet mesh plate for the cross-flow fan Figure 2 .

[0018] Figure 3 is a perspective view of the volute and the air inlet mesh plate in the installation structure of the air inlet mesh plate for the cross-flow fan.

[0019] Figure 4 is a perspective view of the volute, the air inlet mesh plate and the air dust filter core plate in the installation structure of the air inlet mesh plate for the cross-flow fan.

[0020] Figure 5 is a perspective view of the volute, the air inlet mesh plate, the fixing frame, the moving plate and the plug plate in the installation structure of the air inlet mesh plate for the cross-flow fan.

[0021] Figure 6 is a perspective view of the air inlet mesh plate in the installation structure of the air inlet mesh plate for the cross-flow fan.

[0022] Figure 7 is a perspective view of the air inlet mesh plate and the air dust filter core plate in the installation structure of the air inlet mesh plate for the cross-flow fan.

[0023] Figure 8 is Figure 7 is an enlarged view of A in

[0024] The figure is marked: 1, volute; 2, impeller; 3, motor; 4, air inlet mesh plate; 5, disassembly part; 51, fixing frame; 52, light rod; 53, limit disc; 54, moving plate; 55, first spring; 56, plug plate; 57, fixed plate; 58, pull handle; 6, air dust filter core plate; 7, pressing part; 71, slide rod; 72, pressing plate; 73, second spring; 74, extension rod. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means and specific purposes and functions achieved by the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0026] Referring to Figures 1 to 8 As shown in the figure, the utility model provides a kind of installation structure of air inlet screen plate for crossflow fan, including volute 1, impeller 2 is provided in volute 1, volute 1 one end is provided with motor 3, the output end of motor 3 is connected with the one end of impeller 2, volute 1 one side is provided with air inlet screen plate 4, dismounting part 5 for quickly disassembling and assembling air inlet screen plate 4 is arranged between air inlet screen plate 4 and volute 1, the bottom of volute 1 is provided with air outlet, air dust filter core plate 6 is provided in air inlet screen plate 4, air dust filter core plate 6 and air inlet screen plate 4 between are provided with press-fitting component 7 for the dismounting replacement of air dust filter core plate 6.

[0027] When crossflow fan is connected power, motor 3 starts to work.The output end of motor 3 drives impeller 2 to rotate, to generate airflow.External air enters volute 1 inside through air inlet screen plate 4.The air entering volute 1 is accelerated and guided by impeller 2, and forms stable airflow.The accelerated airflow is discharged from the air outlet at the bottom of volute 1, to provide cooling or ventilation for equipment or space.Air inlet screen plate 4 and volute 1 are connected quickly by dismounting part 5, so that user can clean or replace air inlet screen plate 4 quickly.Air dust filter core plate 6 is located inside air inlet screen plate 4, to filter dust and impurities in the air entering volute 1, and by the arrangement of press-fitting component 7, air dust filter core plate 6 can be dismounted and replaced quickly.

[0028] Referring to Figures 1 to 5 As shown in the figure, dismounting part 5 includes fixed frame 51;Fixed frame 51 is arranged at the upper end and lower end of volute 1;The top of fixed frame 51 is provided with two groups of light pole 52, one end of light pole 52 is provided with limit disc 53, light pole 52 is slidably provided with moving plate 54, first spring 55 is sleeved on light pole 52, one end of first spring 55 is in abutment with the top of moving plate 54, the other end of first spring 55 is in abutment with the bottom of limit disc 53, the bottom of moving plate 54 is provided with plug-in plate 56, one end of plug-in plate 56 is provided with abutment part, one side of air inlet screen plate 4 is provided with fixed plate 57, rectangular through hole for the movement of plug-in plate 56 is formed in fixed plate 57, and plug-in slot capable of being inserted with abutment part is further arranged on volute 1.

[0029] When the air inlet net plate 4 needs to be disassembled, the worker manually pulls the moving plate 54 to move upward, and the movement of the moving plate 54 will extrude the first spring 55. At the same time, with the movement of the moving plate 54, the plug plate 56 is moved, so that the plug plate 56 is separated from the plug-in slot and moves out of the rectangular hole, at this time the air inlet net plate 4 can be removed from the fixed frame 51. When the air inlet net plate 4 needs to be installed, pull the moving plate 54 to move upward, the moving plate 54 drives the plug plate 56 to move, at this time the fixed plate 57 on one side of the air inlet net plate 4 is inserted into the bottom of the fixed frame 51, and the moving plate 54 is loosened, the first spring 55 restores the elastic deformation, drives the moving plate 54 to move, and the moving plate 54 drives the plug plate 56 to insert into the rectangular hole until the abutting portion is in complete contact with the plug-in slot, thereby completing the installation of the air inlet net plate 4, which is simple to operate and convenient for workers to disassemble and assemble.

[0030] Referring to Figure 5 As shown, the top of the moving plate 54 is also provided with a pull handle 58.

[0031] The pull handle 58 on the top of the moving plate 54 facilitates the worker to pull the moving plate 54.

[0032] Referring to Figures 6 to 8 As shown, the press-fitting component 7 includes a sliding rod 71; the inner side of the air inlet net plate 4 is provided with a rectangular slot, the sliding rod 71 is horizontally arranged in the rectangular slot, the sliding rod 71 is slidably provided with a pressing plate 72, and the sliding rod 71 is further sleeved with a second spring 73, one end of the second spring 73 abuts against one side of the pressing plate 72, and the other end of the second spring 73 abuts against the inner wall of the rectangular slot.

[0033] When the air dust filter core plate 6 needs to be installed, the worker first pulls the pressing plate 72, and the pressing plate 72 slides on the sliding rod 71 and extrudes the second spring 73, at this time the air dust filter core plate 6 is placed between the pressing plate 72 and the air inlet net plate 4, the pressing plate 72 is loosened, the second spring 73 restores the elastic deformation, and drives the pressing plate 72 to move downward, thereby tightly pressing the air dust filter core plate 6 on the inner side of the air inlet net plate 4. When disassembling, pulling the pressing plate 72 can complete the disassembly of the air dust filter core plate 6, so that the worker can easily take out the air dust filter core plate 6 from the air inlet net plate 4 for cleaning or replacement.

[0034] Referring to Figure 8 As shown, one side of the pressing plate 72 is also provided with an extension rod 74.

[0035] The extension rod 74 is provided, which facilitates the worker to pull the pressing plate 72.

[0036] Referring to Figure 8 As shown, the pressing plate 72 is attached with a rubber buffer layer away from the extension rod 74.

[0037] The rubber buffer layer is arranged, so that when the pressing plate 72 fixes the air dust filter core plate 6, the impact force and vibration are absorbed, the air dust filter core plate 6 and the air inlet mesh plate 4 are protected from being damaged, and the rubber buffer layer has a certain friction coefficient, the friction force between the pressing plate 72 and the air dust filter core plate 6 is increased, and the stability of the air dust filter core plate 6 during installation is increased.

[0038] Referring to Figure 2 As shown in the drawings, the air outlet is provided with a filter screen.

[0039] Through the action of the filter screen, the suspended particulate matters in the air can be effectively blocked to prevent entering into the volute 1.

[0040] When the cross-flow fan is powered on, the motor 3 starts to work. The output end of the motor 3 drives the impeller 2 to rotate, so that the airflow is generated. The external air enters the volute 1 through the air inlet mesh plate 4. The air entering the volute 1 is accelerated and guided by the impeller 2 to form a stable airflow. The accelerated airflow is discharged from the air outlet at the bottom of the volute 1 to provide cooling or ventilation for the equipment or space. Since the air dust filter core plate 6 is located inside the air inlet mesh plate 4, the dust and impurities in the air entering the volute 1 are filtered. When the air inlet mesh plate 4 needs to be disassembled, the worker manually pulls the moving plate 54 to move upward. The movement of the moving plate 54 will extrude the first spring 55. At the same time, with the movement of the moving plate 54, the plug plate 56 is moved, so that the plug plate 56 is separated from the plug-in slot and moves out of the rectangular through hole. At this time, the air inlet mesh plate 4 can be removed from the fixed frame 51. When the air inlet mesh plate 4 needs to be installed, the moving plate 54 is pulled to move upward, and the plug plate 56 is moved by the moving plate 54. At this time, the fixed plate 57 on one side of the air inlet mesh plate 4 is inserted into the bottom of the fixed frame 51, and the moving plate 54 is loosened. The first spring 55 restores the elastic deformation and drives the moving plate 54 to move. The moving plate 54 drives the plug plate 56 to be inserted into the rectangular through hole until the abutting portion is in complete contact with the plug-in slot, so that the installation of the air inlet mesh plate 4 is completed. The operation is simple and convenient for workers to disassemble and assemble.

[0041] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An installation structure for an air inlet grille of a crossflow fan, characterized in that, The utility model provides a kind of air filter, including volute (1), the impeller (2) is arranged in the volute (1), the one end of the volute (1) is provided with motor (3), the output end of the motor (3) is connected with the one end of impeller (2), the one side of the volute (1) is provided with air inlet screen (4), and the air inlet screen (4) is provided with dismounting part (5) for quickly dismounting air inlet screen (4) between the volute (1), the bottom of the volute (1) is provided with air outlet, and the air inlet screen (4) is provided with air dust filter core plate (6) in, and the air dust filter core plate (6) is provided with press-fitting component (7) for dismounting and replacing air dust filter core plate (6) between the air inlet screen (4).

2. The mounting structure for the inlet screen of a cross-flow fan according to claim 1, wherein The dismounting part (5) includes a fixed frame (51); The fixed frame (51) is provided on the upper end and the lower end of the volute (1);Two groups of light poles (52) are provided on the top of the fixed frame (51), one end of the light pole (52) is provided with a limiting disc (53), a moving plate (54) is slidably arranged on the light pole (52), a first spring (55) is sleeved on the light pole (52), one end of the first spring (55) abuts against the top of the moving plate (54), the other end of the first spring (55) abuts against the bottom of the limiting disc (53), the bottom of the moving plate (54) is provided with an insertion plate (56), one end of the insertion plate (56) is provided with an abutting portion, one side of the air inlet screen (4) is provided with a fixed plate (57), a rectangular through hole is formed in the fixed plate (57) for the movement of the insertion plate (56), and the volute (1) is further provided with an insertion slot capable of being inserted and matched with the abutting portion.

3. The mounting structure for the inlet screen of a cross-flow fan according to claim 2, wherein The top of the moving plate (54) is further provided with a pull handle (58).

4. The mounting structure for the inlet screen of a cross-flow fan according to claim 1, wherein The press-fitting component (7) includes a sliding rod (71); A rectangular slot is formed in the inner side of the air inlet screen (4), the sliding rod (71) is horizontally arranged in the rectangular slot, a pressing plate (72) is slidably arranged on the sliding rod (71), and a second spring (73) is further sleeved on the sliding rod (71), one end of the second spring (73) abuts against one side of the pressing plate (72), and the other end of the second spring (73) abuts against the inner wall of the rectangular slot.

5. The mounting structure for the inlet screen of a cross-flow fan according to claim 4, wherein One side of the pressing plate (72) is further provided with an extension rod (74).

6. The mounting structure for the inlet screen of a cross-flow fan according to claim 4, wherein The side of the pressing plate (72) away from the extension rod (74) is attached with a rubber buffer layer.

7. The mounting structure for the inlet screen of a cross-flow fan according to claim 1, wherein A filter screen is arranged at the air outlet.

Images