Integrated range hood

Abstract

An integrated range hood comprises an upper box body and a lower box body, a fan frame is installed in the upper box body, a cooking module is integrated on the lower box body, the lower box body and the fan frame are matched in a guiding mode through a vertically-arranged guide rail, the lower box body is driven by a driving mechanism to do lifting motion relative to the upper box body, and a supporting block is arranged on the back face of a back plate of the fan frame in a protruding mode. The guide rail is installed on the rear portion of the fan frame, the driving mechanism is arranged above the front side portion of the lower box body, and the gravity center of the lower box body is arranged on the front side of the guide rail and arranged on the rear side of the driving output end of the driving mechanism. The guide rail of the integrated range hood is mounted at the rear part of the fan frame, the driving mechanism is arranged above the front side part of the lower box body, the gravity center of the lower box body is arranged between the guide rail and the driving output end of the driving mechanism, and a fixed supporting point is additionally arranged on the back surface of the back plate of the fan frame, so that the stress of the guide rail can be reduced and is constant, and alternating stress is avoided; the service life of the guide rail is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of range hood, in particular to a kind of integrated range hood. BACKGROUND

[0002] Range hood has become one of indispensable kitchen household appliances in modern family, and current range hood is single product, mainly used for discharging oil fume when user cooks, cooking equipment, such as micro-steam oven, as another kind of kitchen appliance, mainly used for heating, baking and steaming food.Small-sized kitchen area is limited, cannot accommodate multiple cooking equipment and range hood simultaneously.For this reason, people have invented range hood integrated with cooking module, integrated range hood adopts lifting structure, which includes upper box body and lower box body, cooking module is integrated on lower box body, driving mechanism is installed between upper box body and lower box body, lower box body is driven to lift relative to upper box body by driving mechanism, since the space between upper box body and lower box body is relatively limited, and cooking module is relatively large in size and heavy in weight, driving mechanism has higher requirements for installation position and structure, if installation position and structure of driving mechanism are not reasonable, lower box body is prone to deviation during lifting process.In addition, as shown in the drawings, existing lifting type range hood is provided with guide rail at rear portion of fan frame, under the drive of driving mechanism, lower box body 2 lifts relative to upper box body 1 through guide rail, roller 10 is installed on rear wall of lower box body 2, wall surface is supported by roller 10, and for lifting type range hood integrated with cooking module, since cooking module is integrated on front side of machine body, the gravity center of whole machine moves forward greatly, by analyzing stress of lower box body and guide rail, guide rail is subjected to the moment generated by gravity G of lower box body and front side push rod pulling force F, at the same time, since lower box body is subjected to roller support force F support, there is a force on guide rail, which is equal in size and opposite in direction to roller support force F support, and by analyzing stress of whole machine hanging state, the force is a force that changes alternately with lifting operation height, so that the stress of guide rail changes unsteadily, which is prone to cause abnormal sound. Figure 1 The utility model relates to a kind of range hood, in particular to a kind of integrated range hood. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem in the prior art, and provides an integrated range hood capable of reducing the moment acting on the guide rail during operation.

[0004] The utility model discloses a kind of integrated range hood, including upper box and lower box, fan frame is installed in the upper box, cooking module is integrated on the lower box, and the lower box is guided and cooperated with fan frame by the guide rail arranged vertically, the lower box is lifted relative to upper box under the drive of drive mechanism, it is characterized in that: the back plate back of fan frame is protruded with support block, the guide rail is installed in the rear of fan frame, the drive mechanism is located above the front side portion of lower box, and the gravity center of the lower box is located the front side of the guide rail, and located the rear side of the drive output end of drive mechanism.

[0005] Drive mechanism can have multiple structures, preferably, the drive mechanism is electric push rod, and the drive output end of the electric push rod is vertically arranged and installed on the top of the lower box.

[0006] In order to play a better supporting role, the support block has two, and is located on the left and right sides of the fan frame back plate.

[0007] Further preferably, the support block is located on the inner side of the guide rail.

[0008] In order to reduce the stress of support point, the support block is located in the lower position of the middle of the fan frame back plate.

[0009] In order to make the guide rail play a better guiding role, the guide rail is installed at the left rear corner and the right rear corner of the fan frame.

[0010] In order to make the lower box move smoothly relative to the upper box, the top of the lower box is installed with a connecting plate, and the connecting plate is located on the outer side of the fan frame and guided and cooperated with the fan frame through the guide rail.

[0011] Drive mechanism can be installed in multiple different positions, preferably, the bottom of the fan frame is installed with a fan frame bottom plate, an installation cavity is formed between the top of the cooking module and the fan frame bottom plate, and the drive output end of the drive mechanism is installed in the installation cavity.

[0012] In order to make the oil fume entering the air inlet channel smoothly, an oil fume fan is installed in the fan frame, an air inlet channel is arranged between the rear wall of the cooking module and the back plate of the lower box, and the air inlet channel is communicated with the air inlet of the oil fume fan.

[0013] Further preferably, the fan frame bottom plate is inclined downward from front to back. In this way, the fan frame bottom plate can play a guiding role on oil fume flow.

[0014] Compared with the prior art, the advantages of this utility model are as follows: the lower box of the integrated range hood and the fan frame are guided and matched by a guide rail. The guide rail is installed at the rear of the fan frame, and the drive mechanism is located above the front side of the lower box. The center of gravity of the lower box is located between the guide rail and the drive output end of the drive mechanism. By adding a fixed support point on the back of the fan frame, the force on the guide rail can be reduced and kept constant, and alternating stress will not occur, thereby increasing the service life of the guide rail. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the range hood according to an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 The diagram shows the structure of the range hood from another angle.

[0017] Figure 3 for Figure 2 The diagram shows the structure of the range hood after the decorative cover has been removed.

[0018] Figure 4 for Figure 3 The side view of the range hood shown;

[0019] Figure 5 for Figure 3 The diagram shows a cross-sectional view of the range hood. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 5 As shown, the integrated range hood in this embodiment includes an upper housing 1 and a lower housing 2. A fan frame 3 is installed inside the upper housing 1, and a range hood fan (not shown) is installed inside the fan frame 3. A cooking module 4 is integrated on the lower housing 2. An air inlet channel 9 is provided between the rear side wall of the cooking module 4 and the back panel of the lower housing 2. The air inlet channel 9 is connected to the air inlet of the range hood fan. When the range hood is working, the fumes enter the range hood fan through the air inlet channel 9.

[0022] The integrated range hood in this embodiment is a lift-type range hood. The lower housing 2 moves up and down relative to the upper housing 1 under the drive of the drive mechanism 6. A fan frame base plate 31 is installed at the bottom of the fan frame 3. The fan frame base plate 31 is inclined downward from front to back, and a mounting cavity 8 is formed between the fan frame base plate 31 and the top of the lower housing 2. The drive output end of the drive mechanism 6 is installed in the mounting cavity 8. Furthermore, the drive mechanism 6 is located above the front side of the lower housing 2 to avoid interfering with the airflow from the air inlet channel 9. The drive mechanism 6 can adopt various structures. In this embodiment, the drive mechanism 6 is an electric push rod. The drive output end of the electric push rod is vertically set and installed on the top of the lower housing 2. Under the drive of the electric push rod, the lower housing 2 and the cooking module 4 move up and down synchronously.

[0023] The lower housing 2 and the fan frame 3 are guided and engaged by vertically arranged guide rails 5. Specifically, a connecting plate 21 is installed on the top of the lower housing 2, and the connecting plate 21 is located on the outside of the fan frame 3 and is guided and engaged with the fan frame 3 by the guide rails 5. The guide rails 5 are installed at the rear of the fan frame 3, specifically at the left rear corner and the right rear corner, making the structure more stable.

[0024] In this embodiment, the center of gravity of the lower housing 2 is located on the front side of the guide rail 5 and on the rear side of the drive output end of the drive mechanism 6. Two support blocks 7 protrude from the back of the back plate of the fan frame 3, and the support blocks 7 are located on the inner side of the guide rail 5. The support blocks 7 are located on the left and right sides of the back plate of the fan frame 3 and are located at a slightly lower center of the back of the fan frame 3. Theoretically, this support point can be set at any position in the vertical direction of the rear side of the fan frame, but placing it as low as possible helps to reduce the stress on the support point.

[0025] Analysis of the force on the guide rail shows that by using the structure of setting the support block 7 on the back of the fan frame 3, the guide rail 5 is only subjected to the torque generated by the weight of the lower box 2 and the push rod pull of the front drive mechanism, and the magnitude of the force is constant, which can extend the service life of the guide rail.

[0026] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. An integrated range hood, comprising an upper housing (1) and a lower housing (2), wherein a fan frame (3) is installed inside the upper housing (1), and a cooking module (4) is integrated on the lower housing (2), the lower housing (2) and the fan frame (3) are guided and fitted by vertically arranged guide rails (5), and the lower housing (2) moves up and down relative to the upper housing (1) under the drive of a drive mechanism (6), characterized in that: The back plate of the fan frame (3) is provided with support blocks (7), the guide rail (5) is installed at the rear of the fan frame (3), the driving mechanism (6) is arranged above the front side of the lower box body (2), the center of gravity of the lower box body (2) is arranged at the front side of the guide rail (5) and at the rear side of the driving output end of the driving mechanism (6).

2. The integrated range hood according to claim 1, characterized in that: The driving mechanism (6) is an electric push rod, and the driving output end of the electric push rod is vertically arranged and installed on the top of the lower box body (2).

3. The integrated range hood according to claim 1, wherein: The support blocks (7) are two and arranged on the left and right sides of the back plate of the fan frame (3).

4. The integrated range hood according to claim 3, wherein: The support blocks (7) are arranged on the inner side of the guide rail (5).

5. The integrated range hood according to claim 3, wherein: The support blocks (7) are arranged at the lower position of the middle part of the back plate of the fan frame (3).

6. The integrated range hood of claim 1, wherein: The guide rail (5) is installed at the left rear corner and the right rear corner of the fan frame (3).

7. The integrated range hood according to claim 1, wherein: The top of the lower box body (2) is provided with a connecting plate (21), and the connecting plate (21) is arranged on the outer side of the fan frame (3) and guided by the guide rail (5).

8. The integrated range hood according to any one of claims 1 to 7, characterized in that: The bottom of the fan frame (3) is provided with a fan frame bottom plate (31), and an installation cavity (8) is formed between the fan frame bottom plate (31) and the top of the lower box body (2), and the driving output end of the driving mechanism (6) is installed in the installation cavity (8).

9. The integrated range hood according to claim 8, characterized in that: An oil fume extractor is installed in the fan frame (3), an air inlet channel (9) is arranged between the rear wall of the cooking module (4) and the back plate of the lower box body (2), and the air inlet channel (9) is communicated with the air inlet of the oil fume extractor.

10. The integrated range hood according to claim 8, wherein: The fan frame bottom plate (31) is inclined downward from front to back.

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