Installation structure of range hood

Abstract

The utility model relates to a mounting structure of a range hood. The mounting structure comprises a machine body, the machine body is mounted on an external mounting foundation through the mounting frame assembly; the mounting rack assembly comprises a fixed disc which is fixed relative to an external mounting base or is arranged on the external mounting base in a manner of sliding up and down relative to the external mounting base; the movable disc is opposite to the fixed disc in the front-back direction and can be rotationally connected to the fixed disc in the mode that the movable disc rotates around the axis extending in the front-back direction, and the machine body is connected with the movable disc and rotates along with the movable disc so as to adjust the hanging angle. The range hood has the advantages that the hanging angle of the range hood can be conveniently adjusted so as to ensure that the range hood can be straightened and mounted in time.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a mounting structure of a range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. Traditional range hoods are usually installed on the wall through a hanger. The hanger is a long sheet metal part fixed to the hanging wall by two screws. After fixing, the position of the hook cannot be adjusted. For example, the Chinese utility model patent application with application number 201120248712.7 discloses the installation structure of this range hood. Due to the differences in user kitchen decoration, the selection of the fixed height of the range hood is relatively cumbersome. The screw position is fixed by the installation master according to the user's cabinet, The height of the stove, combined with the size of the range hood, based on personal experience. When the range hood is not hung properly due to lack of experience, the range hood is manually adjusted The hanging angle of the range hood is re-drilled on the wall for installation. After manual adjustment, the range hood will be affected by gravity for a long time and will return to the wrong state. Re-drilling the wall will also affect the appearance, and it is impossible to ensure the level of the range hood in an effective way. In addition, due to the differences in the existing range hood structures, the main box sizes of the range hoods are different, and the spacing between the two mounting holes on the back panel for fixing the range hoods is also different. Range hoods of different models and different hole spacings need to be equipped with their own hanging plates, which undoubtedly increases the manufacturer's production costs and mold costs. In addition, when the hanging plate at the user's home is damaged, it is impossible to replace it by yourself. What's worse, if the range hood model is relatively old and the manufacturer no longer produces accessories for this model, how to replace the hanging plate is a problem, and there are hidden dangers in user after-sales service.

[0003] Therefore, the installation structure of the existing range hood needs to be further improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a range hood installation structure which is convenient for adjusting the hanging angle of the range hood to ensure that the range hood is installed straightly in view of the current status of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a mounting structure of a range hood, comprising:

[0006] Body;

[0007] A mounting frame assembly, through which the machine body is mounted on an external mounting foundation;

[0008] The mounting frame assembly comprises:

[0009] A fixed plate, fixed relative to the external mounting base or arranged on the external mounting base in a manner capable of sliding relative to the external mounting base;

[0010] The movable plate is opposite to the fixed plate in front and back, and is rotatably connected to the fixed plate in a manner of rotating around an axis extending forward and backward. The machine body is connected to the movable plate and rotates with the movable plate to adjust the suspension angle.

[0011] The body of the range hood is connected to the movable plate, and the movable plate can be deflected and adjusted relative to the fixed plate. During installation, if the body of the range hood is not hung straight, the hanging angle of the body can be manually adjusted to straighten it. After straightening, the body of the range hood can be fixed to an external mounting base (such as a wall) by screws. This installation structure of the range hood greatly simplifies the installation process of the range hood. Even if the initial installation position is deviated, it can be easily straightened. There is no need to re-drill holes as in the prior art, and the installation process is convenient and quick.

[0012] In order to ensure the stability of the rotation of the movable disk relative to the fixed disk and avoid the problem of deflection or shaking, a plurality of balls are provided on the two side walls opposite to the fixed disk, and the plurality of balls are arranged at intervals along the circumferential direction centered on the above-mentioned axis extending forward and backward.

[0013] In order to prevent the balls from falling off, at least one of the two side walls opposite to the movable plate and the fixed plate is provided with an annular limiting groove, the annular limiting groove being centered on the axis extending forward and backward, and each ball is constrained to roll in the annular limiting groove.

[0014] In order to realize the rotation connection between the movable disk and the fixed disk, the movable disk is connected to the fixed disk via a rotating shaft assembly.

[0015] In order to simplify the structure of the rotating shaft assembly and ensure the flexibility of rotation of the movable disk, the rotating shaft assembly includes a mounting seat, a bearing and a pin shaft. The mounting seat is installed on the side wall of the movable disk away from the fixed disk, and defines an installation chamber for installing the bearing with the movable disk. The pin shaft passes through the movable disk and is connected to the fixed disk, and the bearing is arranged outside the pin shaft.

[0016] In order to facilitate the installation of the pin shaft, a mounting opening is provided on the mounting seat at a position corresponding to the end of the pin shaft. The pin shaft can directly pass through the movable plate through the mounting opening and be connected to the fixed plate.

[0017] As an improvement, the pin shaft is a step bolt with a smooth axis portion, and the bearing sleeve is arranged outside the smooth axis portion of the step bolt.

[0018] In order to make the rear side wall of the range hood body as close to the wall as possible so that it can be connected to the wall by screws after the body is straightened, the rear side wall of the body also has a storage recessed area recessed toward the body to accommodate the movable plate and the fixed plate.

[0019] In order to meet the height adjustment requirements of the range hood, the fixing plate is mounted on the external mounting base in a position-adjustable manner via a vertically extending guide rail assembly.

[0020] In order to ensure the stability of the up and down adjustment of the range hood, the guide rail assembly includes two guide rails spaced apart from each other and two sliders correspondingly slidably arranged on the two guide rails, and the two sliders are connected to the fixed plate.

[0021] Compared with the prior art, the advantages of the utility model are as follows: the body of the range hood is connected to the movable plate, and the movable plate can be deflected and adjusted relative to the fixed plate. During installation, if the body of the range hood is not hung straight, the hanging angle of the body can be manually adjusted to straighten it. After straightening, the body of the range hood can be fixed to an external mounting base (such as a wall) by screws. This installation structure of the range hood greatly simplifies the installation process of the range hood. Even if the initial installation position has deviations, it can be easily straightened. There is no need to re-drill holes as in the prior art, and the installation process is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of a range hood according to an embodiment of the utility model;

[0023] Figure 2 A vertical cross-sectional view of the range hood according to an embodiment of the utility model cut along the front-to-back direction;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the mounting frame assembly of an embodiment of the utility model;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the mounting frame assembly of the embodiment of the utility model from another angle;

[0026] Figure 5 An exploded view of a mounting bracket assembly according to an embodiment of the present utility model;

[0027] Figure 6 It is an axial cross-sectional view of the mounting frame assembly according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0030] Figure 1-Figure 6 FIG. 2 shows a preferred embodiment of the installation structure of the range hood of the utility model. Figure 1 As shown, the range hood includes a body 10 and a centrifugal fan arranged in the body 10. The body 10 generally includes a fan frame 11 and a smoke hood 12 arranged at the bottom of the fan frame 11. The inner cavity of the fan frame 11 is connected to the inner cavity of the smoke hood 12. An air inlet (not shown) is provided on the front side wall of the smoke hood 12, and external smoke can enter the smoke hood 12 through the air inlet. The centrifugal fan is arranged in the fan frame 11. When the centrifugal fan is running, negative pressure is generated, and external oil smoke can be sucked into the smoke hood 12 through the air inlet. The front part of the smoke hood 12 is also provided with a smoke baffle that can deflect forward and backward relative to the smoke hood 12. The smoke baffle is connected to the main body of the smoke hood 12 through a hinge motion mechanism. Specifically, it can be deflected forward to open the above-mentioned air inlet and deflected backward to block and close the above-mentioned air inlet. The hinge motion mechanism used to drive the smoke baffle to deflect can adopt a conventional hinge motion mechanism in the prior art, which will not be repeated here.

[0031] Continue to see Figure 1 The rear side wall 110 of the fan frame 11 is connected to an external mounting base (which may be a wall or a fixed plate or a fixed frame structure) through a mounting frame assembly 2. Taking the installation on a wall as an example, after the fan frame 11 of the range hood is installed on the wall through the mounting frame assembly 2, the body 10 of the range hood can be adjusted to deflect left and right, that is, to adjust the hanging angle, and can be adjusted up and down, that is, to adjust the height position.

[0032] Figure 2 A vertical cross-sectional view of the range hood cut along the front-to-back direction is shown, and it can be seen that a storage recess 111 having a local area recessed toward the inside of the fan frame 11 is provided on the rear side wall 110 of the fan frame 11 (i.e., recessed toward the inside), and a part of the structure of the mounting frame assembly 2 can be stored in the above-mentioned storage recess 111. In this way, the rear side wall 110 of the body 10 of the range hood can be made as close to the wall as possible, so that after the body 10 is straightened, it can be directly connected to the wall for fixation by screws.

[0033] Figure 3-Figure 6 The specific structure of the mounting frame assembly 2 is shown. The mounting frame assembly 2 includes a fixed plate 21, a movable plate 22, a ball bearing 23, a rotating shaft assembly and a guide rail assembly.

[0034] The movable disk 22 and the fixed disk 21 are arranged front and back oppositely, both are disc-shaped, and the size is basically the same, and the axes of the two are also basically collinear. The middle area of ​​the movable disk 22 and the middle area of ​​the fixed disk 21 are connected by the above-mentioned rotating shaft assembly. Specifically, the rotating shaft assembly includes a mounting seat 24, a bearing 25 and a pin 26. The mounting seat 24 is mounted on the side wall of the movable disk 22 away from the fixed disk 21 by a screw 28. The mounting seat 24 and the movable disk 22 define a mounting chamber 241 for mounting the bearing 25. After the mounting seat 24 is installed in place by the screw 28, the outer ring of the bearing 25 can be fixed. The pin 26 is a step bolt with a smooth axis portion. The middle area of ​​the movable disk 22 has an opening opposite to the inner ring of the bearing 25. The step bolt passes through the opening of the movable disk 22 (that is,) and is connected to the middle area of ​​the fixed disk 21. The above-mentioned bearing 25 is sleeved outside the smooth axis portion of the step bolt. An installation opening 240 is provided on the mounting seat 24 at a position corresponding to the end of the step bolt, so that the step bolt can directly pass through the movable disk 22 through the above-mentioned installation opening 240 and be connected to the fixed disk 21. After the step bolt is installed in place, it is fixed to the inner ring part of the bearing 25. The main purpose of installing the bearing 25 is to change the sliding friction between the movable disk 22 and the step bolt into rolling friction, thereby ensuring the flexibility of the rotation of the movable disk 22 and avoiding the wear and jamming of parts caused by long-term sliding friction.

[0035] A plurality of balls 23 are also provided on the two side walls of the movable disk 22 opposite to the fixed disk 21, and the plurality of balls 23 are arranged at intervals along the circumferential direction centered on the aforementioned axis extending forward and backward. An annular limiting groove is also provided on the two side walls of the movable disk 22 opposite to the fixed disk 21, wherein the annular limiting groove provided on the fixed disk 21 is recorded as the first limiting groove, and the annular limiting groove provided on the movable disk 22 is recorded as the second limiting groove. The aforementioned first annular limiting groove 210 is opposite to the second annular limiting groove 220, and both are centered on the aforementioned axis extending forward and backward. Each ball 23 is rollingly constrained in the two annular limiting grooves and will not easily fall out, thereby ensuring the stability of the rotation of the movable disk 22 relative to the fixed disk 21 and avoiding the occurrence of sway or shaking problems.

[0036] The guide rail assembly includes two guide rails 271 spaced apart from each other and two sliders 272 correspondingly slidably arranged on the two guide rails 271. The two guide rails 271 are arranged vertically and can be mounted on the wall by screws, and the sliders 272 correspondingly arranged on the two guide rails 271 are connected to the fixed plate 21.

[0037] See also Figure 2The storage recessed area 111 of the rear side wall 110 of the fan frame 11 is a circular recessed area that matches the movable plate 22 and the fixed plate 21. After the mounting frame assembly 2 and the range hood are installed in place, only the movable plate 22 and the fixed plate 21 and other components are stored in the storage recessed area 111, and the slide rail assembly is relatively exposed.

[0038] In this embodiment, the movable plate 22 and the fixed plate 21 rotate mainly through the ball bearing 23. The range hood is adjusted up and down mainly through the guide rail 271 and the slider 272. The guide rail 271 is fixed to the wall, and the slider 272 is fixed to the fixed plate 21 by screws. When the range hood is installed, the slider 272 is placed in the guide rail 271 in contact with the wall, so that the range hood can be adjusted up and down. After the range hood is adjusted to a suitable position, the rear side wall 110 of the range hood is fixed to the wall by screws.

Claims

1. A range hood installation structure, comprising: Body (10); A mounting frame assembly (2), wherein the machine body (10) is mounted on an external mounting foundation via the mounting frame assembly (2); Characterized in that the mounting frame assembly (2) comprises: A fixed plate (21) is fixed relative to the external installation base or is disposed on the external installation base in a manner that it can slide relative to the external installation base; The movable plate (22) is opposite to the fixed plate (21) in front and back, and is rotatably connected to the fixed plate (21) around an axis extending forward and backward. The machine body (10) is connected to the movable plate (22) and rotates with the movable plate (22) to adjust the suspension angle.

2. The installation structure of the range hood according to claim 1, characterized in that: A plurality of balls (23) are also provided on two side walls of the movable plate (22) opposite to the fixed plate (21), and the plurality of balls (23) are arranged at intervals along a circumferential direction centered on the axis extending forward and backward.

3. The installation structure of the range hood according to claim 2, characterized in that: At least one of the two side walls opposite to the fixed plate (21) of the movable plate (22) is provided with an annular limiting groove, the annular limiting groove being centered on the axis extending forward and backward, and each of the balls (23) is rollingly constrained in the annular limiting groove.

4. The installation structure of the range hood according to claim 1, characterized in that: The movable disk (22) is connected to the fixed disk (21) via a rotating shaft assembly.

5. The installation structure of the range hood according to claim 4, characterized in that: The rotating shaft assembly comprises a mounting seat (24), a bearing (25) and a pin (26); the mounting seat (24) is mounted on a side wall of the movable disk (22) away from the fixed disk (21), and defines a mounting chamber (241) for mounting the bearing (25) with the movable disk (22); the pin (26) passes through the movable disk (22) and is connected to the fixed disk (21); and the bearing (25) is sleeved outside the pin (26).

6. The installation structure of the range hood according to claim 5, characterized in that: The mounting seat (24) is provided with a mounting opening (240) at a position corresponding to the end of the pin shaft (26).

7. The installation structure of the range hood according to claim 5, characterized in that: The pin shaft (26) is a stepped bolt having an optical axis portion, and the bearing (25) is sleeved outside the optical axis portion of the stepped bolt.

8. The installation structure of the range hood according to any one of claims 1 to 7, characterized in that: The rear side wall (110) of the machine body (10) also has a receiving recessed area (111) which is recessed toward the inside of the machine body and is used to receive the movable plate (22) and the fixed plate (21).

9. The installation structure of the range hood according to any one of claims 1 to 7, characterized in that: The fixing plate (21) is mounted on an external mounting base in a position-adjustable manner via a vertically extending guide rail assembly.

10. The installation structure of the range hood according to claim 9, characterized in that: The guide rail assembly comprises two guide rails (271) spaced apart from each other on the left and right sides and two sliding blocks (272) correspondingly slidably arranged on the two guide rails (271); the two sliding blocks (272) are connected to the fixed plate (21).

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