Double-layer filter screen supporting and connecting structure for range hood

Abstract

A double-layer filter screen supporting and connecting structure for a range hood comprises a first screen plate and a second screen plate, the edge of the first screen plate is folded towards the reverse direction of the first screen plate to form a first frame, and the edge of the second screen plate is folded towards the direction of the first screen plate to form a second frame; the first screen plate and the second screen plate are installed in a buckled and overlapped mode, the second frame is wrapped in the first frame, and the second frame is supported on the inner surface of the first screen plate. The first screen plate and the second screen plate are isolated by the first frame and the second frame to form a condensation area, a plurality of isolation tables are fixed in the condensation area, the isolation tables are connected with the opposite faces of the first screen plate and the second screen plate, and the first screen plate and the second screen plate are fixed into a whole. The filter screen has the beneficial effects that the plurality of isolation tables are arranged between the first screen plate and the second screen plate, so that the middle part of the filter screen is effectively supported.

Description

TECHNICAL FIELD

[0001] The utility model relates to a range hood accessory, in particular to a double-layer filter screen supporting and connecting structure for range hood. BACKGROUND

[0002] With the improvement of people's living standards and the enhancement of health consciousness, the kitchen range hood has become a necessary kitchen electrical product in modern families. The range hood intercepts particulate matters and oil in the oil fume through the filter screen, playing a role in purifying air. In order to improve the filtering efficiency, a double-layer filter screen structure is usually adopted in the prior art, that is, a double-layer filtering effect is formed by stacking a first screen plate and a second screen plate.

[0003] The existing double-layer range hood filter screen generally adopts a frame part to support and fix the edge of the filter screen, ensuring the overall installation of the filter screen. However, this design has obvious defects in actual use:

[0004] 1. The middle part of the filter screen is suspended and prone to deformation: due to the lack of effective support for the middle part of the filter screen, the filter screen is prone to deformation under the action of gravity and oil fume impact force during long-term use. The deformation of the filter screen not only affects its filtering effect, but also may cause the internal part of the range hood to be contaminated, increasing the difficulty of cleaning and maintenance.

[0005] 2. The filter screen shakes and generates noise: when the range hood is working, strong airflow will be formed inside. Due to the suspended middle part of the filter screen, the airflow passing through will cause the shaking of the middle part of the filter screen. This shaking not only reduces the filtering efficiency, but also generates vibration noise, affecting the user's use experience.

[0006] 3. Shortened service life: frequent deformation and shaking of the filter screen accelerate the fatigue and aging of the material, causing the filter screen to be more prone to damage, requiring frequent replacement and increasing the user's use cost, so it is necessary to make further improvement. INVENTION CONTENTS

[0007] The utility model aims at overcoming the shortcomings of the prior art, providing a double-layer filter screen supporting and connecting structure for range hood, which has simple structure, is convenient to use, can provide effective support for the middle part of the filter screen on the basis of retaining the existing filtering effect, prevent deformation and shaking, improve the stability and service life of the filter screen, and thus improve the overall performance and user experience of the range hood.

[0008] The utility model aims at overcoming the shortcomings of the prior art, providing a double-layer filter screen supporting and connecting structure for range hood, which has simple structure, is convenient to use, can provide effective support for the middle part of the filter screen on the basis of retaining the existing filtering effect, prevent deformation and shaking, improve the stability and service life of the filter screen, and thus improve the overall performance and user experience of the range hood.

[0009] The first mesh plate and the second mesh plate are buckled and overlapped, the second frame is covered in the first frame, and the second frame is supported on the inner surface of the first mesh plate.

[0010] The first mesh plate and the second mesh plate are buckled and overlapped, the second frame is covered in the first frame, and the second frame is supported on the inner surface of the first mesh plate.

[0011] Further, the first mesh plate is fixedly provided with a nut seat, the second mesh plate is provided with a mounting hole, and a fixing screw is connected and fixed with the nut seat after penetrating through the mounting hole and the isolation table.

[0012] Further, the first mesh plate is fixedly provided with a nut seat, the second mesh plate is provided with a mounting hole, and a fixing screw is connected and fixed with the nut seat after penetrating through the mounting hole and the isolation table.

[0013] Further, the nut seat is fixed on the first mesh plate or the second mesh plate by welding.

[0014] Further, the isolation table is provided with a positioning hole in the middle part, and the positioning hole penetrates through the upper and lower end surfaces of the isolation table.

[0015] Further, the outer cylindrical surface of the isolation table is provided with a plurality of concave air avoidance grooves corresponding to the oil filter hole positions on the second mesh plate and the first mesh plate.

[0016] The beneficial effects of the utility model are: 1. simple structure, low production cost, and improved market competitiveness.

[0017] 2. By setting a plurality of isolation tables between the first mesh plate and the second mesh plate, effective support is realized for the middle part of the filter screen.

[0018] 3. The setting of the isolation table not only supports the middle part of the filter screen, but also effectively prevents the filter screen from shaking under the action of air flow.

[0019] 4. By enhancing the structural stability of the filter screen, material fatigue and loss caused by deformation and shaking of the filter screen are reduced, the service life of the filter screen is prolonged, and the maintenance and replacement cost of the user is reduced.

[0020] 5. The condensation area formed between the first frame and the second frame helps the condensation and collection of oil fume, improves the filtering efficiency of oil fume, and enhances the purification effect of the range hood.

[0021] 6. The installation mode of buckling overlap is adopted, the second frame is covered in the first frame, and the stability of the overall structure is enhanced.

[0022] 7. The inner recessed avoidance groove is arranged on the outer column surface of the isolation table, the avoidance groove corresponds to the position of the oil filter hole, the oil filter hole is avoided from being shielded, smooth oil filtering is ensured, and the filtering performance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 、 2 It is the assembly effect drawing of the utility model.

[0024] Figure 3 It is the structure exploded view of the utility model.

[0025] Figure 4 It is the local structure sectional view of the utility model.

[0026] Figure 5 、 6 It is the exploded view of the isolation table, the nut seat and the fixing screw in the utility model. DETAILED DESCRIPTION

[0027] The utility model will be further specifically explained in connection with the drawings. A double-layer filter screen supporting and connecting structure for an oil smoke machine comprises a first screen plate 1 and a second screen plate 2, the edge of the first screen plate 1 is reversely folded towards the first screen plate 1 and is provided with a first frame 3, the edge of the second screen plate 2 is folded towards the first screen plate 1 and is provided with a second frame 4.

[0028] The first screen plate 1 and the second screen plate 2 are buckled and overlapped and installed, the second frame 4 is covered in the first frame 3, and the second frame 4 is supported on the inner surface of the first screen plate 1.

[0029] The first screen plate 1 and the second screen plate 2 are isolated by the first frame 3 and the second frame 4 to form a condensation area 5, a plurality of isolation tables 6 are fixed in the condensation area 5, the isolation tables 6 are connected to the opposite surfaces of the first screen plate 1 and the second screen plate 2, and the first screen plate 1 and the second screen plate 2 are fixed as a whole.

[0030] In one embodiment, the nut seat 7 is fixedly arranged on the first screen plate 1, the mounting hole 8 is arranged on the second screen plate 2, and the fixing screw 9 is connected and fixed with the nut seat 7 after penetrating through the mounting hole 8 and the isolation table 6.

[0031] In one embodiment, the nut seat 7 is fixedly arranged on the first screen plate 1, the mounting hole 8 is arranged on the second screen plate 2, and the fixing screw 9 is connected and fixed with the nut seat 7 after penetrating through the mounting hole 8 and the isolation table 6.

[0032] In one embodiment, the nut seat 7 is fixed on the first screen plate 1 or the second screen plate 2 by welding.

[0033] In one of the embodiments: the isolation platform 6 is provided with positioning holes 61 in the middle, which pass through the upper and lower end surfaces of the isolation platform 6.

[0034] In one of the embodiments: the outer cylindrical surface of the isolation platform 6 is provided with a plurality of concave air avoidance grooves 62, which correspond to the oil filter hole positions on the second mesh plate 2 and the first mesh plate 1.

[0035] Working principle: the utility model relates to a double-layer filter screen supporting and connecting structure for a range hood, which realizes the stable connection and middle support of the filter screen through unique design, and overcomes the problems of easy deformation, shaking and noise generation of the filter screen in the prior art.

[0036] Specifically, the utility model includes a first mesh plate 1 and a second mesh plate 2, both of which are metal mesh plates for filtering oil fume. The edge of the first mesh plate 1 is folded in the opposite direction to form a first frame 3; the edge of the second mesh plate 2 is folded in the direction of the first mesh plate 1 to form a second frame 4. This folding mode of the frame makes the two mesh plates be buckled and overlapped, and the frames are nested with each other to form a stable peripheral connection.

[0037] When installed, the second mesh plate 2 is buckled and overlapped with the first mesh plate 1, the second frame 4 is covered in the first frame 3, and the second frame 4 is supported on the inner surface of the first mesh plate 1. In this way, the edges of the two mesh plates are tightly fitted, preventing oil fume from leaking from the edges, and enhancing the stability of the overall structure.

[0038] Among them, the isolation between the two mesh plates by the first frame 3 and the second frame 4 forms a space for smoke flow, i.e. a condensation area 5. The condensation area helps the oil fume flow in the area to contact the mesh plate, so that the oil fume produces a condensation effect when it contacts the mesh plate, improving the collection efficiency of oil and preventing oil from entering the internal structure of the range hood.

[0039] Among them, it needs to be highlighted that: in the condensation area 5, a plurality of isolation platforms 6 are arranged. The isolation platform 6 fixedly connects the opposite surfaces of the first mesh plate 1 and the second mesh plate 2, supports and fixes the two mesh plates in the middle area as a whole. The arrangement of the isolation platform solves the problem of the suspended middle part of the filter screen, provides effective support, and prevents the filter screen from deforming during use.

[0040] At the same time, the isolation platform provides middle support, avoiding the deformation of the filter screen caused by gravity and airflow. The stable middle support prevents the filter screen from shaking under the action of airflow, reducing the generation of noise.

[0041] In order to further enhance the stability of the structure, the utility model discloses nut seat 7 is fixedly arranged on the first net plate 1 or the second net plate 2. The other net plate is provided with mounting hole 8. Fixed screw 9 passes through the positioning hole 61 of the partition table 6 and mounting hole 8 and is connected and fixed with nut seat 7. Among them, nut seat 7 is fixed on the net plate through welding, which ensures the firmness of connection.

[0042] And nut seat can be selected and fixed on the first net plate or the second net plate, which provides various assembly schemes.

[0043] Compared with the traditional technology, in the case, the middle support of the net plate and the stable connection prevent the deformation and shaking of the filter screen. At the same time, the design of the condensation area and the air avoidance groove ensures the effective filtration of oil fume and the smooth discharge of grease. Preventing the shaking of the filter screen reduces the noise generated by vibration, so it can be widely used.

[0044] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The skilled person in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A double-layer filter screen support connecting structure for a range hood, characterized by: It includes first net board (1) and second net board (2), the edge of first net board (1) is folded back to first net board (1) first frame (3), the edge of second net board (2) is folded back to first net board (1) second frame (4); First net board (1) and second net board (2) are overlapped and installed, second frame (4) is covered in first frame (3), and second frame (4) is supported on the inner surface of first net board (1); First net board (1) and second net board (2) are isolated by first frame (3) and second frame (4) to form condensation zone (5), and a plurality of isolation tables (6) are fixed in condensation zone (5), isolation table (6) is connected to the opposite surface of first net board (1) and second net board (2), and first net board (1) and second net board (2) are fixed as a whole.

2. The double-layer filter screen support connecting structure for a range hood according to claim 1, characterized in that: The nut seat (7) is fixed on the first net board (1), the mounting hole (8) is arranged on the second net board (2), and the fixed screw (9) is connected and fixed with the nut seat (7) after penetrating through the mounting hole (8) and the isolation table (6).

3. The double-layer filter screen support connecting structure for a range hood according to claim 1, characterized in that: The nut seat (7) is fixed on the first net board (1), the mounting hole (8) is arranged on the second net board (2), and the fixed screw (9) is connected and fixed with the nut seat (7) after penetrating through the mounting hole (8) and the isolation table (6).

4. The double-layer filter screen support connecting structure for a range hood according to claim 3, characterized in that: The nut seat (7) is fixed on the first net board (1) or the second net board (2) by welding.

5. The double-layer filter screen support connecting structure for a range hood according to claim 1, characterized in that: The positioning hole (61) is arranged in the middle of the isolation table (6), and the positioning hole (61) penetrates the upper and lower end surfaces of the isolation table (6).

6. The double-layer filter screen support connecting structure for a range hood according to claim 1 or 5, characterized in that: A plurality of concave air avoidance grooves (62) are arranged on the outer cylindrical surface of the isolation table (6), and the air avoidance grooves (62) are arranged corresponding to the oil filter hole positions on the second net board (2) and the first net board (1).

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