CN116025935A - Opening and closing structure and range hood - Google Patents

Abstract

The invention relates to the technical field of range hoods and provides an opening and closing structure and a range hood. The opening and closing structure includes a smoke baffle; a support rod is provided with a first support end and a second support end, and the first support end is connected to the The smoke baffle, and the support rod is configured with an avoidance groove along the extension direction; the active rod is movably inserted in the avoidance groove, at the position between the first support end and the second support end , the active rod is hinged to the support rod; a drive assembly is connected to the active rod, and the drive assembly is adapted to rotate the support rod and the smoke baffle around the second support end. The active rod is hidden in the avoidance groove. When the smoke baffle is opened, the active rod and the hinged joints will not be exposed, which prevents the hinged joints from contacting the user's body and hair, increases the safety during use, and is more beautiful.

Description

Opening and closing structure and range hood

technical field

The invention relates to the technical field of range hoods, in particular to an opening and closing structure and the range hood.

Background technique

Range hoods have become one of the indispensable kitchen appliances in modern families. Common range hoods include top-suction and side-suction. The utility model has the advantages of good smoking effect and low noise. In the related art, a link mechanism is often used to realize the overturning movement of the panel, and the active rod is hingedly connected to the support rod connecting the panel. When the panel is opened, the hinged joints are exposed in the visible range, and the user may touch the hinged joints by mistake, which has safety problems and is not beautiful.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the related art. For this reason, the present invention proposes an opening and closing structure, the support rod is provided with an avoidance groove, the active rod is movably inserted in the avoidance groove, and when the active rod drives the support rod to rotate, the hinged joints are hidden in the avoidance groove, which has higher safety , and more beautiful.

At the same time, the embodiment of the present invention also provides a range hood.

An opening and closing structure provided according to an embodiment of the first aspect of the present invention includes:

Smoke baffle;

A support rod is provided with a first support end and a second support end, the first support end is connected to the smoke baffle, and an avoidance groove is configured on the support rod along the extending direction;

The active rod is movably inserted in the avoidance groove, and at the position between the first support end and the second support end, the active rod is hinged to the support rod;

The drive assembly is connected to the active rod, and the drive assembly is suitable for rotating the support rod and the smoke baffle around the second support end.

According to an embodiment of the present invention, the support rod is a curved arm structure, and the escape groove is arranged in the curved arm structure.

According to an embodiment of the present invention, a connecting rod is further provided between the active rod and the supporting rod, and both ends of the connecting rod are respectively hinged to the active rod and the supporting rod.

According to an embodiment of the present invention, the driving assembly includes a driving device, the driving device is installed on a bracket, and the bracket is suitable for fixing the driving device; the second supporting end is hinged to the bracket, and the The driving device is connected to the active rod.

According to an embodiment of the present invention, a first limiter and a second limiter are provided on both sides of the active rod on the bracket, and the first limiter and the second limiter are suitable for To limit the stroke of the active lever.

According to an embodiment of the present invention, the smoke baffle is provided with a mounting base, the first supporting end is provided with a limiting groove, and the mounting base is connected to the first supporting end through the limiting groove.

According to an embodiment of the present invention, at least one positioning post is provided in the limiting slot, at least one positioning slot is provided on the mounting base, and the positioning post is movably inserted in the positioning slot.

According to an embodiment of the present invention, a screw hole is provided in the limiting groove, and the screw hole is suitable for assembling a screw connecting the support rod and the mounting base, and the edge of the screw hole is provided with a Grooves for screws.

According to an embodiment of the present invention, a driven assembly is further provided on the smoke baffle, and the smoke baffle is adapted to rotate around the driven assembly.

A range hood provided according to the embodiment of the second aspect of the present invention includes a body and the opening and closing structure provided in the embodiment of the first aspect of the present invention, the body is configured with an air inlet, and the opening and closing structure is arranged at the air inlet , the opening and closing structure is suitable for switching between the state of shielding and avoiding the air inlet.

The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

The opening and closing structure provided by the embodiment of the present invention includes a smoke baffle, a support rod, an active rod and a drive assembly. The support rod is provided with a first support end and a second support end, the smoke baffle is arranged at the first support end, and The rod is rotatable around the second support end. The supporting rod is provided with an avoidance groove along the extension direction, and the active rod is movably inserted in the avoiding groove, and the active rod is hinged to the supporting rod at a position between the first support end and the second support end, and the driving assembly is connected to the active rod. When the active rod rotates, the support rod can drive the smoke baffle to rotate around the second support end. The active rod is hidden in the avoidance groove. When the smoke baffle is opened, the active rod and the hinged joints are not exposed, which prevents the hinged joints from contacting the user's body and hair, increases the safety during use, and is more beautiful. At the same time, the active rod is hinged at the middle position of the support rod, and the small stroke of the active rod can make the support rod and the smoke baffle move a larger distance. In the case of limited opening and closing structure volume, the smoke baffle is improved. Smoke collection area and smoke exhaust efficiency.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following will briefly introduce the drawings that need to be used in the descriptions of the embodiments or related technologies. Obviously, the drawings in the following description are only For some embodiments of the invention, those skilled in the art can also obtain other drawings based on these drawings without creative effort.

Fig. 1 is a schematic diagram of the opening and closing structure provided by the embodiment of the present invention;

Fig. 2 is a schematic diagram of a drive assembly, an active rod and a support rod provided by an embodiment of the present invention;

3 is a schematic diagram of a support rod provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram 1 of the range hood provided by the embodiment of the present invention;

Fig. 5 is a second schematic diagram of the range hood provided by the embodiment of the present invention.

Reference signs:

10. Smoke baffle; 20. Support rod; 21. First support end; 22. Second support end; 23. Avoidance groove; 24. Limit groove; 25. Positioning column; 26. Screw hole; 27. Groove ; 28, screw; 30, active rod; 31, connecting rod; 40, driving assembly; 41, bracket; 42, driving device; 43, first limiting member; 44, second limiting member; 60. driven assembly; 61. fixed bracket; 62. driven rod; 63. fixed seat; 200. body; 210. air inlet.

Detailed ways

In order to make the purpose, technical solutions and advantages of the invention clearer, the technical solutions in the invention will be clearly described below in conjunction with the accompanying drawings in the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of them. Example. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, Or integrated connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention in specific situations.

In the embodiments of the present invention, unless otherwise specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature may pass through the middle of the second feature. Media indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

In related technologies, a link mechanism is often used to realize the overturning movement of the smoke baffle, and the active rod is hingedly connected to the support rod connecting the panel. When the panel is opened, the hinged joints are exposed in the visible range, and the user's body or hair may easily touch the hinged joints by mistake, causing safety problems during use, and it is not beautiful.

An opening and closing structure provided according to the embodiment of the first aspect of the present invention, please refer to FIG. 1 to FIG. 5 , includes a smoke baffle 10 , a support rod 20 , an active rod 30 and a driving assembly 40 .

The smoke baffle 10 can be made of a stainless steel panel or a glass panel, etc., and is arranged at the air inlet 210 of the range hood, and switches between the states of blocking or avoiding the air inlet 210 .

The shape and size of the smoke baffle 10 are adapted to the air inlet 210, and the opening and closing structure can be applied to different types of range hoods.

The support rod 20 is provided with a first support end 21 and a second support end 22. The first support end 21 is connected to the smoke baffle 10. When the support rod 20 moves, the smoke baffle 10 can move synchronously.

An avoidance groove 23 is arranged on the support rod 20 along the extension direction, and the active rod 30 is movably inserted in the avoidance groove 23, and the avoidance groove 23 can allow the active rod 30 to swing within a certain range.

At the position between the first support end 21 and the second support end 22 , the active rod 30 is hinged to the support rod 20 , and the active rod 30 and the hinge joint are hidden inside the escape groove 23 .

When the smoke baffle 10 rotates, the active rod 30 and the hinged joints will not be exposed outside, which can prevent the active rod 30 and the hinged joints from contacting the user's body and hair, increasing the safety during use, and the opening and closing structure is more beautiful .

The driving assembly 40 is connected to the active rod 30 and can control the movement stroke of the active rod 30 . The active rod 30 is hinged to the middle part of the support rod 20 to make the support rod 20 and the smoke baffle 10 rotate around the second support end 22 .

In one embodiment, when the smoke baffle 10 is unfolded, the rotation angle is between 110° and 115°, and the rotation angle of the active rod 30 is between 75° and 80°.

It can be understood that the active rod 30 is connected to the middle position of the support rod 20 , and the support rod 20 can move a relatively large distance through a relatively small stroke of the active rod 30 . When the size of the opening and closing structure is constant, the smoke baffle 10 can be opened at a larger angle, which increases the smoke collecting area and smoke exhaust efficiency of the smoke baffle 10 .

When the smoke baffle 10 is switched between different positions, the folding and unfolding of the opening and closing structure can be realized, and the air inlet 210 can be blocked or avoided.

According to an embodiment of the present invention, the support rod 20 is a curved arm structure, and the escape groove 23 is arranged inside the curved arm structure.

The articulating arm structure takes up less space in a single direction, but allows for greater travel during rotation.

The curved arm structure can further reduce the volume of the opening and closing structure, making the overall structure of the range hood more streamlined, reducing the occupation of narrow kitchen space, and making installation and use more convenient.

The avoidance groove 23 is arranged on the support rod 20. When the support rod 20 is a curved arm structure, the shapes of the active rod 30 and the avoidance groove 23 adapt to the curved arm structure and change synchronously.

It can be understood that no matter how the structure of the support rod 20 changes, there is sufficient space inside the avoidance groove 23 to allow the active rod 30 to change its position.

The active rod 30 is movably inserted in the avoidance groove 23 and hinged at a middle position in the extending direction of the support rod 20 . When the active rod 30 moves, the supporting rod 20 can have a larger movement stroke.

According to an embodiment of the present invention, a connecting rod 31 is disposed between the active rod 30 and the supporting rod 20 , and the two ends of the connecting rod 31 are respectively hinged to the active rod 30 and the supporting rod 20 .

When the active rod 30 rotates, it can drive the connecting rod 31 to rotate. The active rod 30 and the connecting rod 31 form an active rod assembly, which prolongs the movement distance of the end of the active rod 30 , thereby increasing the movement stroke of the support rod 20 .

When the movement stroke of the active rod 30 is constant, the moving distance of the support rod 20 is affected by the active rod 30 and the connecting rod 31 , which is beneficial to increase the deployment angle and the smoke collection area of the smoke baffle 10 .

The smoke baffle 10 is connected to the first support end 21 of the support rod 20 , and the smoke baffle 10 and the support rod 20 can rotate around the second support end 22 .

According to an embodiment of the present invention, the driving assembly 40 includes a driving device 42, and the driving device 42 may be a motor, a rotating cylinder, or the like.

The driving device 42 is installed on the bracket 41, and the bracket 41 is used to fix the driving device 42, so that the driving device 42 can maintain a stable position when performing work.

The bracket 41 is installed at the air inlet 210 of the range hood, so that other components of the opening and closing structure can correspond to the air inlet 210 .

The driving device 42 is connected to the active rod 30 and can drive the active rod 30 to rotate. The second support end 22 of the support rod 20 is hingedly connected to the support 41 , and when the active rod 30 moves, the support rod 20 and the smoke baffle 10 rotate around the support 41 .

The support rod 20 is hinged to the bracket 41, and the bracket 41 can constrain the movement track of the smoke baffle 10, so that the smoke baffle 10 can be accurately fastened to the air inlet 210 of the range hood, which increases the position accuracy of the smoke baffle 10 and reduces the The width of the gap between the smoke plate 10 and other panels improves the aesthetics of the range hood.

In one embodiment, the gap distance between the smoke baffle 10 and the decorative panel can be reduced to 2.0 mm to 3.2 mm, which increases the compactness of the structure.

When the active rod 30 moves, it can drive the smoke baffle 10 and the supporting rod 20 to move synchronously, so that the smoke baffle 10 can be switched between the unfolded state and the folded state.

It can be understood that when the smoke baffle 10 is unfolded and folded, the movement range of the smoke baffle 10 is determined, and it is necessary to avoid collision damage between the smoke baffle 10 and the opening and closing structure or other components of the range hood during use.

According to an embodiment of the present invention, the bracket 41 is provided with a first limiting member 43 and a second limiting member 44 .

The first limiting member 43 and the second limiting member 44 are located on both sides of the active rod 30 , respectively at the upper stop point and the lower stop point, and can limit the movement stroke of the active rod 30 .

In one embodiment, when the active rod 30 moves to the first limiter 43 , the smoke baffle 10 is retracted. When the active rod 30 moves to the second limiting member 44, the smoke baffle 10 is unfolded.

In one embodiment, the first limiting member 43 and the second limiting member 44 may be independent structures fixed on the bracket 41 , such as metal components fixed on the bracket 41 by bolts.

In another embodiment, the first limiting member 43 and the second limiting member 44 may be part of the bracket 41 . The bracket 41 made of metal is bent at the upper dead point and the lower dead point to form a bent limiting structure.

When the first limiting member 43 and the second limiting member 44 are formed by bending the bracket 41 , the difficulty of assembling the opening and closing structure is reduced, and the cost of the bracket 41 is reduced.

According to an embodiment of the present invention, the smoke baffle 10 is provided with a mounting seat 50 , and the first supporting end 21 is provided with a limiting groove 24 , and the mounting seat 50 is connected to the first supporting end 21 through the limiting groove 24 .

The mounting base 50 includes a panel connecting portion and a connecting portion. The panel connecting portion is large in size and can be stably connected to the smoke baffle 10 . The connecting portion is connected to the limiting groove 24 at the first supporting end 21 .

When the mounting base 50 is connected to the smoke baffle 10 , they can be connected together through a bolt structure, a buckle structure, or an adhesive.

When the smoke baffle 10 is a glass panel, in order to avoid drilling holes in the smoke baffle 10 , an adhesive may be used to bond the smoke baffle 10 and the panel connecting portion of the mounting seat 50 together.

The limiting groove 24 can ensure that there will be no relative sliding between the mounting base 50 and the support rod 20 , which increases the positioning accuracy of the structure and is beneficial to improving the positional accuracy of the smoke baffle 10 .

When assembling the opening and closing structure, it is necessary to align the mounting seat 50 with the first support end 21 of the support rod 20, and then fix them with bolts or the like. In actual operation, one worker is required to align the two parts, and another worker locks the two parts with bolts. The labor cost during installation is high and the efficiency is low.

According to an embodiment of the present invention, at least one positioning post 25 is disposed in the limiting slot 24 , at least one positioning slot is provided on the mounting base 50 , and the positioning post 25 is movably inserted into the positioning slot.

When assembling the opening and closing structure, the connecting portion of the mounting seat 50 can be aligned with the positioning groove 24 first, so that the positioning column 25 is inserted into the positioning groove. The positioning post 25 and the positioning groove can constrain the positional relationship between the mounting seat 50 and the support rod 20 , even if the force applied to the mounting seat 50 and the support rod 20 is loosened, the two will not fall off. When the installation worker assembles the opening and closing structure, one person can complete the assembly work, which increases the assembly efficiency and reduces the labor cost.

In one embodiment, the number of positioning posts 25 is two, wherein the cross-section of one positioning post 25 is circular, and the cross-section of the other positioning post 25 is polygonal, and the positioning posts 25 of different cross-sections help to reduce installation The shaking between the seat 50 and the limiting groove 24 improves the assembly accuracy of the smoke baffle 10 .

In other embodiments, the number of positioning posts 25 may be multiple, and the cross-sectional shapes of different positioning posts 25 may be different.

In order to ensure a stable connection between the mounting base 50 and the support rod 20 , a buckle structure or a bolt structure is provided between the mounting base 50 and the first support end 21 .

According to an embodiment of the present invention, a screw hole 26 is disposed in the limiting groove 24 , and the screw hole 26 is suitable for assembling a screw 28 connecting the support rod 20 and the mounting base 50 .

The support rod 20 and the mounting seat 50 are fixed together by the screw 28 and the screw hole 26, which is beneficial to the assembly and disassembly of the opening and closing structure.

In one embodiment, the edge of the screw hole 26 is provided with a groove 27 surrounding the screw 28, and the side wall of the groove 27 protrudes into the limiting groove 24. After the screw 28 is connected to the screw hole 26, the end of the screw 28 Hidden in the groove 27.

The groove 27 can prevent the screw 28 from being exposed, which increases the aesthetics of the joint. At the same time, the groove 27 also increases the structural strength at the screw hole 26 and improves the service life of the opening and closing structure.

According to an embodiment of the present invention, the smoke baffle 10 is also provided with a driven assembly 60 .

The driven assembly 60 is provided with a hinge structure, the smoke baffle 10 can rotate around the driven assembly 60 , and when the smoke baffle 10 rotates with the support rod 20 , it is constrained by the driven assembly 60 at the same time.

In one embodiment, the driven assembly 60 includes a fixing bracket 61 , a driven rod 62 and a fixing seat 63 .

The fixed bracket 61 is connected to the body 200 of the range hood, one end of the driven rod 62 is hinged to the fixed bracket 61 , and the other end is connected to the fixed seat 63 .

The fixing seat 63 is similar to the mounting seat 50 , and includes a panel connecting portion and a connecting portion connected to the smoke baffle 10 , and the fixing seat 63 is connected to the smoke baffle 10 .

When the smoke baffle 10 is rotating, it is constrained by the support rod 20 and the driven rod 62 at the same time, so the position accuracy is high and the movement process is relatively stable.

In one embodiment, the driven rod 62 is a curved arm structure, which can provide a larger stroke when rotating, but occupies a small space, which is beneficial to the reduction of the overall size of the opening and closing structure.

A range hood provided according to the embodiment of the second aspect of the present invention includes a body 200 and an opening and closing structure provided according to the embodiment of the first aspect of the present invention. place.

The smoke baffle 10 of the opening and closing structure can be switched between the states of avoiding or blocking the air inlet 210 when unfolded and folded.

As mentioned above, in the opening and closing structure and range hood provided by the embodiment of the present invention, the opening and closing structure includes a smoke baffle, a support rod, an active rod and a drive assembly, and the support rod is provided with a first support end and a second support end , the smoke baffle is arranged at the first support end, and the support rod can rotate around the second support end. The supporting rod is provided with an avoidance groove along the extension direction, and the active rod is movably inserted in the avoiding groove, and the active rod is hinged to the supporting rod at a position between the first support end and the second support end, and the driving assembly is connected to the active rod. When the active rod rotates, the support rod can drive the smoke baffle to rotate around the second support end. The active rod is hidden in the avoidance groove. When the smoke baffle is opened, the active rod and the hinged joints are not exposed, which prevents the hinged joints from contacting the user's body and hair, increases the safety during use, and is more beautiful. At the same time, the active rod is hinged at the middle position of the support rod, and the small stroke of the active rod can make the support rod and the smoke baffle move a larger distance. In the case of limited opening and closing structure volume, the smoke baffle is improved. Smoke collection area and smoke exhaust efficiency.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. An opening and closing structure, characterized by comprising:

a smoke baffle;

the support rod is provided with a first support end and a second support end, the first support end is connected with the smoke baffle plate, and an avoidance groove is formed in the support rod along the extending direction;

the driving rod is movably inserted into the avoiding groove, and is hinged to the supporting rod at a position between the first supporting end and the second supporting end;

the driving assembly is connected with the driving rod and is suitable for enabling the supporting rod and the smoke baffle to rotate around the second supporting end.

2. The opening and closing structure according to claim 1, wherein the support rod is a crank structure, and the avoidance groove is provided in the crank structure.

3. The opening and closing structure according to claim 1, wherein a connecting rod is further provided between the driving rod and the supporting rod, and two ends of the connecting rod are respectively hinged to the driving rod and the supporting rod.

4. The opening and closing structure according to claim 1, wherein the driving assembly comprises a driving device mounted on a bracket adapted to fix the driving device; the second support end is hinged to the support, and the driving device is connected to the driving rod.

5. The opening and closing structure according to claim 4, wherein a first limiting member and a second limiting member are disposed on the support at two sides of the driving rod, and the first limiting member and the second limiting member are adapted to limit a stroke of the driving rod.

6. The opening and closing structure according to claim 1, wherein an installation seat is arranged on the smoke baffle plate, a limiting groove is arranged at the first supporting end, and the installation seat is connected to the first supporting end through the limiting groove.

7. The opening and closing structure according to claim 6, wherein at least one positioning column is arranged in the limiting groove, at least one positioning groove is arranged on the mounting seat, and the positioning column is movably inserted into the positioning groove.

8. The opening and closing structure according to claim 6, wherein a screw hole is provided in the limit groove, the screw hole is adapted to be assembled with a screw for connecting the support rod and the mounting seat, and a groove surrounding the screw is provided at an edge of the screw hole.

9. The structure according to any one of claims 1 to 8, wherein a driven member is further provided on the smoke barrier, and the smoke barrier is adapted to rotate around the driven member.

10. A range hood, characterized by comprising a machine body and an opening and closing structure according to any one of claims 1 to 9, wherein the machine body is provided with an air inlet, the opening and closing structure is arranged at the air inlet, and the opening and closing structure is suitable for switching between a state of shielding and avoiding the air inlet.

Images