CN215765313U - Smoke exhaust ventilator - Google Patents
Smoke exhaust ventilator Download PDFInfo
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- CN215765313U CN215765313U CN202122340865.0U CN202122340865U CN215765313U CN 215765313 U CN215765313 U CN 215765313U CN 202122340865 U CN202122340865 U CN 202122340865U CN 215765313 U CN215765313 U CN 215765313U
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- turning plate
- connecting rod
- assembly
- range hood
- upper turning
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Abstract
The utility model provides a range hood, which relates to the technical field of kitchen equipment, and comprises: the device comprises an upper turning plate, a lower turning plate, a linkage assembly, a driving assembly and a supporting piece; the linkage assembly is movably arranged on the support piece, and the upper turning plate and the lower turning plate are both arranged on the linkage assembly; the driving component is in transmission connection with the upper turning plate and is used for driving the upper turning plate to rotate towards the opening or closing direction, and the linkage component is used for driving the lower turning plate to rotate relative to the upper turning plate. The range hood provided by the utility model solves the problem that the whole turnover plate seriously shields the sight of an operator when the turnover plate is opened.
Description
Technical Field
The utility model relates to the technical field of kitchen equipment, in particular to a range hood.
Background
The range hood is an electrical appliance widely used in kitchens and is used for exhausting oil smoke generated in the cooking process of a stove. In a part of thin range hood, a turning plate is arranged at one end of a smoke collection mechanism close to oil smoke. In the prior art, when the thin range hood is in a non-working state, the turning plate is closed close to the smoke collecting mechanism, so that the smoke collecting mechanism is protected to a certain extent, and the volume of the thin range hood is reduced; in a working state, in order to prevent oil smoke from escaping, the turning plate is rotated, the turning plate and the smoke collection mechanism form a certain angle, the smoke collection mechanism collects the discharged oil smoke, but the whole turning plate can seriously shield the sight of an operator when the turning plate is opened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a range hood to solve the problem that the whole turning plate in the prior art seriously shields the sight of an operator.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
the range hood provided by the utility model comprises: the device comprises an upper turning plate, a lower turning plate, a linkage assembly, a driving assembly and a supporting piece;
the linkage assembly is movably arranged on the support piece, and the upper turning plate and the lower turning plate are both arranged on the linkage assembly;
the driving component is in transmission connection with the upper turning plate and is used for driving the upper turning plate to rotate towards the opening or closing direction, and the linkage component is used for driving the lower turning plate to rotate relative to the upper turning plate.
As a further technical scheme, the linkage assembly comprises a first connecting rod and a second connecting rod;
the two ends of the first connecting rod are respectively hinged with the second connecting rod and the supporting piece, the upper turning plate is fixedly arranged on the first connecting rod, and the lower turning plate is fixedly arranged on the second connecting rod.
As a further technical scheme, the range hood further comprises a limiting component, and the limiting component is used for limiting the relative angle range between the upper turning plate and the lower turning plate.
As a further technical scheme, the limiting assembly comprises a third connecting rod and a first hinged seat;
the first hinge seat is fixedly arranged on the supporting piece, and two ends of the third connecting rod are respectively hinged with the first hinge seat and one end of the second connecting rod, which is far away from the first connecting rod;
and a hinge four-bar mechanism is formed among the first connecting bar, the second connecting bar, the third connecting bar and the first hinge seat.
As a further technical scheme, the limiting assembly comprises a swinging strip and a limiting block; the first connecting rod or the second connecting rod is provided with a swinging strip; correspondingly, the second connecting rod or the first connecting rod is provided with a limiting block matched with the swinging strip.
As a further technical scheme, the limiting assembly comprises two limiting blocks, the two limiting blocks are arranged at intervals, and the swinging strip swings between the two limiting blocks.
As a further technical scheme, the linkage assembly further comprises a second hinge seat; the second is articulated to be set up in support piece fixedly, and first connecting rod is articulated with the articulated seat of second.
As a further technical scheme, the driving assembly comprises a push rod and a motor, the motor is fixedly arranged on the supporting piece, one end of the push rod is connected with the motor, and the other end of the push rod is hinged with the upper turning plate.
As a further technical scheme, the driving assembly further comprises a third hinge seat, the third hinge seat is fixedly arranged on the side face, opposite to the push rod, of the upper turning plate, and the push rod is hinged to the third hinge seat.
As a further technical scheme, the range hood comprises a plurality of groups of linkage assemblies;
the multiple groups of linkage assemblies are hinged between the upper turning plate and the support piece and are uniformly arranged between the upper turning plate and the support piece at intervals along the horizontal direction.
Compared with the prior art, the range hood provided by the utility model has the technical advantages that:
the range hood provided by the utility model comprises an upper turning plate, a lower turning plate, a linkage assembly, a driving assembly and a supporting piece, wherein the upper turning plate and the lower turning plate are connected with the linkage assembly, the linkage assembly is hinged to a supporting frame, the driving assembly is directly connected with the upper turning plate, the upper turning plate is driven to rotate clockwise around the supporting piece, the lower turning plate rotates relative to the upper turning plate, and the relative angle between the upper turning plate and the lower turning plate can be adjusted. When the upper turning plate is opened, the lower turning plate is close to vertical, the front projection area of the upper turning plate and the lower turning plate is reduced while the smoke absorption area of the range hood is enlarged, and the area of the turning plate assembly for shielding the sight of an operator is changed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a first schematic structural diagram of a linkage assembly in a range hood according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a linkage assembly in the range hood according to the embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a schematic diagram of a four-bar linkage mechanism of the range hood according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a range hood provided in the embodiment of the present invention.
Icon: 100-a flap assembly; 110-an upper turning plate; 120-lower turning plate;
200-a linkage assembly; 210-a first link; 220-a second link; 240-a second articulated mount;
300-a drive assembly; 310-a push rod; 320-a third hinge mount; 330-a motor;
400-a spacing assembly; 410-a third link; 420-a first articulated mount; 430-a wobble strip; 440-a stop block;
500-support member.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The range hood provided by the embodiment of the utility model comprises: the linkage mechanism comprises an upper turning plate 110, a lower turning plate 120, a linkage assembly 200, a driving assembly 300 and a support 500, wherein the linkage assembly 200 is movably arranged on the support 500, and the upper turning plate 110 and the lower turning plate 120 are both arranged on the linkage assembly 200;
the driving assembly 300 is in transmission connection with the upper turning plate 110 and is used for driving the upper turning plate 110 to rotate in the opening or closing direction, and the linkage assembly 200 is used for driving the lower turning plate 120 to rotate relative to the upper turning plate 110.
Specifically, as shown in fig. 2 and 5, the linkage assembly 200 is movably connected to the support 500, the linkage assembly 200 can rotate around a connection point between the linkage assembly 200 and the support 500, and the upper turning plate 110 and the lower turning plate 120 are both fixedly connected to the linkage assembly 200, so as to prevent the upper turning plate 110 and the lower turning plate 120 from sliding or falling off relative to the linkage assembly 200 during the use of the range hood. When the range hood is in a non-working state, the upper turning plate 110 and the lower turning plate 120 are attached to the side, close to the oil smoke, of the support member 500 in parallel, and the upper turning plate 110 and the lower turning plate 120 protect the smoking mechanism of the range hood to a certain extent. When the range hood is in a working state, the driving assembly 300 starts to work, the driving assembly 300 is connected with the upper turning plate 110, the driving assembly 300 drives the upper turning plate 110 to move, because the upper turning plate 110 is fixedly arranged on the linkage assembly 200, the upper turning plate 110 drives the linkage assembly 200 to rotate around a connecting point of the linkage assembly 200 and the support member 500, meanwhile, the lower turning plate 120 is vertical to the ground all the time under the action of gravity, when the smoke absorption area of the range hood is increased, compared with the prior art, the front projection area of the upper turning plate 110 and the lower turning plate 120 is reduced, the area of the turning plate assembly 100 shielding the sight of an operator is reduced, and the range hood is convenient for the operator to operate.
In an optional technical solution of the embodiment of the present invention, the linkage assembly 200 includes a first link 210 and a second link 220;
two ends of the first connecting rod 210 are hinged to the second connecting rod 220 and the supporting member 500, respectively, the upper flap 110 is fixedly disposed on the first connecting rod 210, and the lower flap 120 is fixedly disposed on the second connecting rod 220.
As shown in fig. 2, the first link 210 can move along the opening or closing direction of the flap assembly 100 relative to the support 500, the upper flap 110 is fixedly disposed with the first link 210, and the upper flap 110 moves along with the first link 210; meanwhile, the second connecting rod 220 is movably connected with the first connecting rod 210, and the lower turning plate 120 is fixedly connected with the second connecting rod 220. When the driving assembly 300 provides power to the upper turning plate 110 and drives the upper turning plate 110 to drive the first connecting rod 210 to rotate in the direction away from the supporting member 500, the lower turning plate 120 is kept perpendicular to the ground under the action of self gravity, and compared with an integrated turning plate, the front projection areas of the upper turning plate 110 and the lower turning plate 120 are reduced, so that the operation of an operator is facilitated.
In the optional technical solution of the embodiment of the present invention, the range hood further includes a limiting assembly 400, and the limiting assembly 400 is used for limiting the relative angle range between the upper turning plate 110 and the lower turning plate 120.
Specifically, as shown in fig. 1, the limiting assembly 400 is disposed between the linkage assembly 200 or the linkage assembly 200 and the support 500, and in the process of opening the flap assembly 100, the limiting assembly 400 limits an included angle between the first connecting rod 210 and the second connecting rod 220, so as to prevent the included angle from being too large or too small, thereby preventing the flap assembly 100 from causing troubles to an operator in the operation process.
In an optional technical solution of the embodiment of the present invention, the limiting assembly 400 includes a third connecting rod 410 and a first hinge seat 420;
the first hinge seat 420 is fixedly arranged on the support, and two ends of the third connecting rod 410 are respectively hinged with one ends of the first hinge seat 420 and the second connecting rod 220 far away from the first connecting rod 210;
the first link 210, the second link 220, the third link 410 and the first hinge base 420 form a four-bar hinge mechanism therebetween.
Specifically, as shown in fig. 2 and fig. 4, the first hinge seat 420 is U-shaped, a bottom surface of the first hinge seat 420 is fixedly connected to the support 500, an end of the first hinge seat 420 away from the bottom surface is hinged to an end of the third link 410, an end of the third link 410 originally away from the first hinge seat 420 is hinged to the second link 220, another end of the second link 220 is hinged to the first link 210, and an end of the first link 210 away from the second link 220 is hinged to the support 500; the first connecting rod 210, the second connecting rod 220 and the third connecting rod 410 can relatively move in a certain range, and meanwhile, the third connecting rod 410 limits the opening and closing range of a relative included angle between the first connecting rod 210 and the second connecting rod 220, so that the relative angle between the upper turning plate 110 and the lower turning plate 120 is ensured to be in an optimal range suitable for operation of an operator; meanwhile, as shown in fig. 4, a hinged four-bar mechanism is formed among the first connecting bar 210, the second connecting bar 220, the third connecting bar 410 and the first hinged seat 420, in the process of opening the flap assembly 100, the driving assembly 300 drives the upper flap 110 to turn upwards, so as to drive the hinged four-bar mechanism to rotate, wherein the second connecting bar 220 drives the lower flap 120 to move, the hinged four-bar mechanism has good stability, it is ensured that the upper flap 110 and the lower flap 120 do not shake in the rotating process, when the range hood is in operation, the flap assembly 100 smoothly transits from the closed state to the open state, and the stability of operation is ensured.
In an optional technical solution of the embodiment of the present invention, the limiting assembly 400 includes a swing bar 430 and a limiting block 440; the first link 210 or the second link 220 is provided with a swing bar 430; correspondingly, the second link 220 or the first link 210 is provided with a stopper 440 engaged with the swing bar 430.
In this embodiment, the swing strip 430 is fixedly installed on the first connecting rod 210, the limiting block 440 is fixedly installed on the second connecting rod 220, as shown in fig. 2 and fig. 3, one end of the swing strip 430 is fixedly installed at one end of the first connecting rod 210 hinged to the second connecting rod 220, the limiting block 440 is fixedly installed at one end of the second connecting rod 220 hinged to the first connecting rod 210 and is matched with the swing strip 430, the limiting block 440 can be installed on one surface of the swing strip 430 close to the supporting member 500, and can also be installed on one surface of the swing strip 430 departing from the supporting member 500. The swing bar 430 cooperates with the limiting block 440 to limit the relative angle between the first link 210 and the second link 220, i.e., the upper flap 110 and the lower flap 120, during the rotation process.
In an optional technical solution of the embodiment of the present invention, the limiting assembly 400 includes two limiting blocks 440, the two limiting blocks 440 are disposed at an interval, and the swinging bar 430 swings between the two limiting blocks 440.
As shown in fig. 2 and fig. 3, the swing bar 430 is provided with a limit block 440 in two directions close to the support 500 and away from the support 500, and the two limit blocks 440 cooperate with each other to limit the movement range of the swing bar 430, that is, the variation range of the relative angle between the first link 210 and the second link 220 is limited, so as to limit the relative angle between the upper flap 110 and the lower flap 120. When the range hood is in a non-working state, the upper turning plate 110 and the lower turning plate 120 are on the same horizontal plane and completely attached to one surface of the support 500 close to the upper turning plate 110 and the lower turning plate 120; in the working state of the range hood, when the upper turning plate 110 and the lower turning plate 120 need to be opened, the driving assembly 300 drives the first connecting rod 210 and the upper turning plate 110 to rotate clockwise, in the opening process of the upper turning plate 110 and the lower turning plate 120, the limiting block 440 contacts with the swing strip 430, the minimum relative angle between the upper turning plate 110 and the lower turning plate 120 is limited, and it is ensured that the front projection area of the upper turning plate 110 and the lower turning plate 120 is relatively minimum when the range hood works, thereby reducing the shielding of the sight line of an operator, as can be seen in detail from fig. 3, when the upper turning plate 110 and the lower turning plate 120 are completely attached to the support 500, the swing strip 430 is abutted to the limiting block 440 close to the support 500, and when the upper turning plate 110 and the lower turning plate 120 are opened, the swing strip 430 is abutted to the limiting block 440 away from the support 500.
In an optional technical solution of the embodiment of the present invention, the linkage assembly 200 further includes a second hinge seat 240; the second hinge base 240 is fixedly disposed on the supporting member 500, and the first connecting rod 210 is hinged to the second hinge base 240.
As shown in fig. 2, the second hinge seat 240 is U-shaped, the bottom surface of the second hinge seat 240 is fixedly connected to the support 500, and one end of the second hinge seat 240 away from the bottom surface is hinged to one end of the first link rod 210, so as to enhance the hinge stability between the second hinge seat 240 and the first link rod 210, and at the same time, the first link rod 210 is more flexible when rotating around the support 500.
In an optional technical solution of the embodiment of the present invention, the driving assembly 300 includes a push rod 310 and a motor 330, the motor 330 is fixedly disposed on the supporting member 500, one end of the push rod 310 is connected to the motor 330, and the other end is hinged to the upper turning plate 110.
Specifically, as shown in fig. 5, the motor 330 is fixedly connected to the supporting member 500, one end of the push rod 310 is fixedly connected to the motor 330, and the other end is hinged to the upper turning plate 110. When the range hood is in a working state, the motor 330 starts to rotate, the motor 330 drives the push rod 310 to rotate clockwise around the support 500, the push rod 310 pushes the upper turning plate 110 to drive the first connecting rod 210 to rotate clockwise relative to the support 500, the relative angle between the push rod 310 and the upper turning plate 110 changes, the relative angle between the upper turning plate 110 and the lower turning plate 120 starts to change, the motor 330 stops rotating when the relative angle between the upper turning plate 110 and the lower turning plate 120 is changed to a proper position, the upper turning plate 110 and the lower turning plate 120 are opened relative to the support 500, and meanwhile, the relative angle between the upper turning plate 110 and the lower turning plate 120 is basically kept short, so that the stability of the range hood in the working process is ensured.
In an optional technical solution of the embodiment of the present invention, the driving assembly 300 further includes a third hinge base 320, the third hinge base 320 is fixedly disposed on a side surface of the upper turning plate 110 opposite to the push rod 310, and the push rod 310 is hinged to the third hinge base 320.
Specifically, as shown in fig. 5, the third hinge base 320 is U-shaped, the bottom surface of the third hinge base 320 is fixedly connected to the supporting member 500, and both ends of the third hinge base 320 departing from the bottom surface are hinged to the ends of the push rods 310 departing from the motor 330, so as to enhance the hinge stability between the third hinge base 320 and the push rods 310, and simultaneously, the push rods 310 are more flexible and stable when the push rods 310 push the upper turning plate 110 and the first connecting rod 210 to rotate around the motor 330.
In the optional technical scheme of the embodiment of the utility model, the range hood comprises a plurality of groups of linkage assemblies 200; the multiple groups of linkage assemblies 200 are hinged between the flap assembly 100 and the support 500, and are uniformly arranged between the flap assembly 100 and the support 500 along the horizontal direction at intervals.
As shown in fig. 1 to 5, during the process of the flap assembly 100 rotating to approach or depart from the support 500, the rotation of the first link 210 and the third link 410 relative to the support 500, the rotation of the second link 220 relative to the first link 210 and the third link 410, the rotation of the push rod 310 relative to the motor 330, and the rotation of the upper flap 110 relative to the push rod 310 are included. During rotation, a plurality of groups of linkage assemblies 200 which are uniformly arranged along the horizontal direction between the turning plate assembly 100 and the support 500 at intervals can be arranged, so that the stability of the turning plate assembly 100 in the process of rotating to approach or depart from is ensured; meanwhile, a plurality of groups of push rods 310 and third hinge seats 320 can be uniformly arranged in the horizontal direction between the upper turning plate 110 and the support 500 at intervals, the plurality of push rods 310 are fixedly arranged on the motor 330, and the motor 330 rotates to drive the plurality of push rods 310 to rotate, so that the process of the turning plate assembly 100 approaching or deviating from the support 500 in a rotating manner is more stable, labor-saving and the experience of an operator is improved.
The examples are given solely for the purpose of illustrating the utility model and are not to be construed as limiting thereof; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A range hood, comprising: the device comprises an upper turning plate (110), a lower turning plate (120), a linkage assembly (200), a driving assembly (300) and a support (500);
the linkage assembly (200) is movably mounted on the support (500), and the upper turning plate (110) and the lower turning plate (120) are both mounted on the linkage assembly (200);
the driving component (300) is in transmission connection with the upper turning plate (110) and is used for driving the upper turning plate (110) to rotate towards the opening or closing direction, and the linkage component (200) is used for driving the lower turning plate (120) to rotate relative to the upper turning plate (110).
2. The range hood of claim 1, wherein the linkage assembly (200) comprises a first link (210) and a second link (220);
two ends of the first connecting rod (210) are respectively hinged with the second connecting rod (220) and the supporting piece (500), the upper turning plate (110) is fixedly arranged on the first connecting rod (210), and the lower turning plate (120) is fixedly arranged on the second connecting rod (220).
3. The range hood according to claim 2, further comprising a limiting assembly (400), wherein the limiting assembly (400) is used for limiting a relative angular range between the upper flap (110) and the lower flap (120).
4. The range hood according to claim 3, wherein the limit assembly (400) comprises a third link (410) and a first hinge seat (420);
the first hinge seat (420) is fixedly arranged on the support, and two ends of the third connecting rod (410) are respectively hinged with one ends of the first hinge seat (420) and the second connecting rod (220) far away from the first connecting rod (210);
the first connecting rod (210), the second connecting rod (220), the third connecting rod (410) and the first hinge seat (420) form a four-bar hinge mechanism.
5. The range hood of claim 3, wherein the limit block assembly (400) comprises a swing strip (430) and a limit block (440); the first link (210) or the second link (220) is provided with the swing bar (430); correspondingly, the second connecting rod (220) or the first connecting rod (210) is provided with the limiting block (440) matched with the swinging strip (430).
6. The range hood according to claim 5, wherein the limiting assembly (400) comprises two limiting blocks (440), the two limiting blocks (440) are arranged at intervals, and the swinging strip (430) swings between the two limiting blocks (440).
7. The range hood of claim 2, wherein the linkage assembly (200) further comprises a second hinged seat (240); the second hinged seat (240) is fixedly arranged on the support (500), and the first connecting rod (210) is hinged to the second hinged seat (240).
8. The range hood according to claim 1, wherein the driving assembly (300) comprises a push rod (310) and a motor (330), the motor (330) is fixedly arranged on the support member (500), one end of the push rod (310) is connected with the motor (330), and the other end of the push rod is hinged with the upper turning plate (110).
9. The range hood according to claim 8, wherein the driving assembly (300) further comprises a third hinge base (320), the third hinge base (320) is fixedly disposed on a side surface of the upper turning plate (110) opposite to the push rod (310), and the push rod (310) is hinged to the third hinge base (320).
10. The range hood according to any one of claims 1-9, wherein the range hood comprises a plurality of sets of the linkage assemblies (200);
the multiple groups of linkage assemblies (200) are hinged between the upper turning plate (110) and the support member (500), and are uniformly arranged between the upper turning plate (110) and the support member (500) at intervals along the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122340865.0U CN215765313U (en) | 2021-09-24 | 2021-09-24 | Smoke exhaust ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122340865.0U CN215765313U (en) | 2021-09-24 | 2021-09-24 | Smoke exhaust ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215765313U true CN215765313U (en) | 2022-02-08 |
Family
ID=80091177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122340865.0U Active CN215765313U (en) | 2021-09-24 | 2021-09-24 | Smoke exhaust ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215765313U (en) |
-
2021
- 2021-09-24 CN CN202122340865.0U patent/CN215765313U/en active Active
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