Range hood

Abstract

The utility model discloses a range hood, and aims to solve the problem that a baffle of a drawer type range hood is poor in fixing effect. The range hood comprises a machine shell, a sliding rail, a baffle, a fixing piece, a clamping piece, a first clamping jaw and a second clamping jaw, a containing cavity and an air suction opening communicated with the containing cavity and the outside are formed in the machine shell, and the fixing piece is arranged in the containing cavity and connected with the machine shell. The sliding rail is connected with the machine shell, and the baffle is arranged at the air suction opening, slidably connected with the sliding rail and used for opening and closing the air suction opening. And the clamping piece is connected with the baffle. The first clamping jaw and the second clamping jaw are arranged in a spaced mode in the direction perpendicular to the sliding direction of the baffle, the first clamping jaw and the second clamping jaw are connected with the fixing piece, and the first clamping jaw and the second clamping jaw can move in the direction close to or away from each other, so that the first clamping jaw and the second clamping jaw can release and lock the clamping piece; and when the baffle plate closes the exhaust inlet, the clamping piece is positioned between the first clamping jaw and the second clamping jaw, and the first clamping jaw and the second clamping jaw lock the clamping piece.

Description

Technical Field

[0001] The utility model relates to the field of kitchen appliances, in particular to a range hood. Background Art

[0002] A drawer-type range hood is a range hood installed inside a kitchen cabinet. When a user uses the range hood, the user pulls open the baffle of the range hood to expose the air suction port, and the range hood starts to exhaust oil fumes. When not in use, the user pushes the baffle back to close it, and the range hood shuts down.

[0003] In the related art, in order to facilitate user operation, a pulley rail structure is usually arranged between the baffle and the casing, so that the baffle slides relative to the casing through the pulley rail structure, so that the baffle can be easily pulled out and pushed in to facilitate the user to turn on the range hood.

[0004] However, the pulley rail structure is relatively flexible. If the installation accuracy of the range hood is not high or the baffle is not parallel to the ground, the baffle is easily slid out of the casing under the action of collision or its own weight, affecting the user experience effect. Summary of the Utility Model

[0005] An embodiment of the utility model provides a range hood, which solves the problem of poor fixing effect of the baffle of the drawer-type range hood.

[0006] To achieve the above object, the embodiment of the utility model adopts the following technical solutions:

[0007] In a first aspect, an embodiment of the present application provides a range hood, which includes a casing, a slide rail, a baffle, a fixing member, a clamping member, a first claw and a second claw. The casing forms a receiving cavity and an air suction port communicating the receiving cavity with the outside. The fixing member is arranged in the receiving cavity and is connected to the casing. The slide rail is connected to the casing. The baffle is arranged at the air suction port and is slidably connected to the slide rail. The baffle is used to open and close the air suction port. The clamping member is connected to the baffle.

[0008] The first claw and the second claw are arranged at intervals in a direction perpendicular to the sliding direction of the baffle. The first claw and the second claw are respectively connected to the fixing member, and the first claw and the second claw can move in a direction close to or away from each other, so that the first claw and the second claw can release and lock the clamping member.

[0009] Wherein, when the baffle closes the air suction port, the clamping member is located between the first claw and the second claw, and the first claw and the second claw can move in a direction close to each other, so that the first claw and the second claw lock the clamping member.

[0010] Moreover, the clamping member is connected to the baffle, the first and second claws are respectively connected to the fixing member, and the fixing member is connected to the housing. Therefore, when the first and second claws lock the clamping member, the baffle can be locked, thereby limiting the baffle to prevent it from sliding out of the housing. In this way, when the baffle closes the air suction opening, it can be firmly connected to the housing and is not easily disengaged from the housing, thus improving the user experience.

[0011] In some embodiments, the fixing member includes a fixing housing, a first connecting rod, and a slider. The fixing housing is connected to the housing. One end of the first connecting rod is rotatably connected to the fixing housing, the slider is slidably connected to the fixing housing, a circular groove is provided on the first surface of the slider, the first surface is parallel to the sliding direction of the baffle, and the other end of the first connecting rod is slidably connected to the circular groove. When the baffle closes the air suction opening, the first connecting rod abuts against the inner wall surface of the circular groove on the side close to the baffle.

[0012] In some embodiments, the fixing member further includes a first limiting member and a second limiting member. The first limiting member is located on the side of the first claw away from the second claw, and the second limiting member is located on the side of the second claw away from the first claw. When the baffle closes the air suction opening, the first limiting member abuts against the first claw, and the second limiting member abuts against the second claw.

[0013] In some embodiments, the first limiting member is a first roller, and the first roller is rotatably connected to the fixing housing; and / or, the second limiting member is a second roller, and the second roller is rotatably connected to the fixing housing.

[0014] In some embodiments, the range hood further includes a first elastic member and a second elastic member. The first elastic member is connected to the slider and is also connected to the first claw, the second elastic member is connected to the slider and is also connected to the second claw. When the baffle closes the air suction opening, the first elastic member and the second elastic member are compressed.

[0015] In some embodiments, the clamping member includes a connecting rod and a clamping ball. One end of the connecting rod is connected to the baffle, and the other end of the connecting rod is connected to the clamping ball. When the baffle closes the air suction opening, the clamping ball is located between the first and second claws, and the first and second claws lock the clamping ball.

[0016] In some embodiments, the range hood further includes an abutting block. The abutting block is connected to the fixing member and is disposed between the first and second claws. When the baffle closes the air suction opening, the clamping ball abuts against the abutting block.

[0017] In some embodiments, the bottom wall surface of the circular groove includes a plurality of stepped surfaces connected end to end in sequence. For any two adjacent stepped surfaces, the distance between the leading end of one of them and the first surface is less than the distance between the trailing end of the other stepped surface and the first surface.

[0018] In some embodiments, the range hood further includes a third resilient member, one end of the resilient member is connected to the slider, and the other end of the resilient member is connected to the fixed housing.

[0019] In a second aspect, embodiments of the present application provide a range hood, which includes a housing, a slide rail, a baffle, a fixing member, a clamping member, a first claw and a second claw. The housing forms a receiving cavity and an air suction opening communicating the receiving cavity with the outside, and the fixing member is connected to the housing. The slide rail is connected to the housing, the baffle is disposed at the air suction opening, the baffle is slidably connected to the slide rail, and the baffle is used to open and close the air suction opening. The clamping member is connected to the baffle.

[0020] The first claw and the second claw are spaced apart along a direction perpendicular to the sliding direction of the baffle. The first claw and the second claw are respectively connected to the fixing member, and the first claw and the second claw can move in a direction close to or away from each other, so that the first claw and the second claw can release and lock the clamping member;

[0021] Wherein, when the baffle closes the air suction opening, the clamping member is located between the first claw and the second claw, and the first claw and the second claw lock the clamping member.

[0022] For the beneficial effects described in the second aspect of the present application, reference can be made to the analysis of the beneficial effects in the first aspect, which will not be elaborated here. Description of the Drawings

[0023] Figure 1 One of the structural diagrams of a range hood provided for the related art;

[0024] Figure 2 Another structural diagram of a range hood provided for the related art;

[0025] Figure 3 Another structural diagram of a range hood provided for the related art;

[0026] Figure 4 One of the structural diagrams of a range hood provided by embodiments of the present application;

[0027] Figure 5 Another structural diagram of a range hood provided by embodiments of the present application;

[0028] Figure 6 Another structural diagram of a range hood provided by embodiments of the present application;

[0029] Figure 7 Another structural diagram of a range hood provided by embodiments of the present application;

[0030] Figure 8 Another structural diagram of a range hood provided by embodiments of the present application;

[0031] Figure 9 The sixth structural diagram of a range hood provided by an embodiment of the present application;

[0032] Figure 10 The seventh structural diagram of a range hood provided by an embodiment of the present application;

[0033] Figure 11 The eighth structural diagram of a range hood provided by an embodiment of the present application;

[0034] Figure 12 The ninth structural diagram of a range hood provided by an embodiment of the present application;

[0035] Figure 13 The tenth structural diagram of a range hood provided by an embodiment of the present application;

[0036] Figure 14 The eleventh structural diagram of a range hood provided by an embodiment of the present application;

[0037] Figure 15 The twelfth structural diagram of a range hood provided by an embodiment of the present application;

[0038] Figure 16 The thirteenth structural diagram of a range hood provided by an embodiment of the present application;

[0039] Figure 17 The fourteenth structural diagram of a range hood provided by an embodiment of the present application;

[0040] Figure 18 The fifteenth structural diagram of a range hood provided by an embodiment of the present application;

[0041] Figure 19 The sixteenth structural diagram of a range hood provided by an embodiment of the present application;

[0042] Figure 20 The seventeenth structural diagram of a range hood provided by an embodiment of the present application.

[0043] Reference numerals: 100 - housing; 101 - slide rail assembly; 1011 - slide rail; 1012 - slide bar; 1013 - elastic piece; 102 - accommodation cavity; 103 - air suction port; 200 - baffle; 300 - fixing member; 301 - fixing housing; 3011 - accommodation cavity; 3012 - first opening; 302 - first connecting rod; 3021 - limiting portion; 3022 - connecting portion; 303 - slider; 3031 - annular groove; 30311 - stepped surface; 30312 - recessed portion; 3032 - first surface; 304 - first roller; 305 - second roller; 306 - third resilient member; 400 - clamping member; 401 - connecting rod; 402 - clamping ball; 500 - fan; 600 - first claw; 601 - first torsion spring; 602 - first notch; 700 - second claw; 701 - second torsion spring; 703 - second notch; 800 - abutting block; 900 - limiting cavity. Detailed implementation manners

[0044] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0045] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0046] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0047] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, when describing pipelines or channels, the terms "connection" and "connection" used in this application have the meaning of conducting. The specific meaning needs to be understood in combination with the context.

[0048] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0049] As used herein, "about", "substantially" or "approximately" includes the stated value and the average value within an acceptable deviation range of the specific value, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of the specific quantity (i.e., the limitations of the measurement system).

[0050] A drawer - type range hood, also known as a pull - out range hood, see Figure 1 , the range hood is designed in a drawer - like structure and can be hidden inside the cabinet without taking up extra space, making the kitchen cleaner and more beautiful.

[0051] Specifically, when the user needs the range hood to work, the user can pull open the baffle 200 that blocks the range hood, see Figure 1 , when the user does not use the range hood, the user pushes the baffle 200 back and closes it. This design not only saves kitchen space but also is very convenient to operate.

[0052] See Figure 2 , in the related art, in order to facilitate the user to open and close the baffle 200, a slide rail assembly 101 is provided between the baffle 200 and the casing 100, so that the baffle 200 can be easily slid out and pushed in.

[0053] Among them, the slide rail assembly 101 includes a slide rail 1011 and a slide bar 1012. One of the slide rail 1011 and the slide bar 1012 is arranged on the side wall of the baffle 200, and the other of the slide rail 1011 and the slide bar 1012 is arranged on the inner side wall of the casing 100, and the slide rail 1011 and the slide bar 1012 are slidably connected.

[0054] See Figure 3 , the slide rail assembly 101 further includes a spring piece 1013 arranged on the slide rail 1011. The spring piece 1013 is used to release and lock the slide bar 1012. When the baffle 200 closes the air inlet 103, the baffle 200 presses the spring piece 1013. After the spring piece 1013 is compressed, it generates a force on the baffle 200, thereby locking the slide bar 1012, so that the baffle 200 can be fixed in the corresponding position.

[0055] However, the force exerted by the elastic piece 1013 on the baffle 200 is small. Only by fixing the baffle 200 with the elastic piece 1013, the baffle 200 cannot be in a stable fixed state.

[0056] To solve the above technical problems, the embodiments of the present application provide a range hood, which solves the problem of poor fixing effect of the baffle 200 of the drawer-type range hood.

[0057] In some embodiments, referring to Figure 4 , the range hood in the present application includes a housing 100, and the housing 100 is used to place the components of the range hood and collect and discharge harmful gases such as oil fumes, smoke and steam generated on the stove.

[0058] In some embodiments, referring to Figure 4 , the housing 100 of the present application is formed with a receiving cavity 102 and an air inlet 103 communicating the receiving cavity 102 with the outside. During the cooking process, the oil fumes generated and the air around the range hood can enter the receiving cavity 102 in the housing 100 through the air inlet 103, and after flowing through the receiving cavity 102, they are discharged to the outside.

[0059] In some embodiments, referring to Figure 4 , the range hood provided by the present application further includes a fan 500. When the fan 500 operates, a negative pressure area is generated in the receiving cavity 102. At this time, the oil fumes can be attracted by the negative pressure area and enter the receiving cavity 102, and then the oil and gas separation is carried out in the receiving cavity 102. The oil particles are condensed into oil drops and collected through the oil path, and the purified flue gas is discharged to the outside.

[0060] In some embodiments, referring to Figure 5 , the range hood in the present application includes a slide rail 1011, and the slide rail 1011 is connected to the housing 100.

[0061] In some embodiments, referring to Figure 5 , the range hood in the present application includes a baffle 200, the baffle 200 is arranged at the air inlet 103, and the baffle 200 is slidably connected to the slide rail 1011. The baffle 200 is used to open and close the air inlet 103.

[0062] Specifically, continuing to refer to Figure 3, the side wall of the baffle 200 is provided with a slide bar 1012, the slide bar 1012 is slidably connected to the slide rail 1011, and the baffle 200 can slide between a first position and a second position along the arrangement direction of the slide rail 1011 through the slide bar 1012. When the slide rail 1011 is located at the first position, the baffle 200 closes the air inlet 103; when the slide rail 1011 is located at the second position, the baffle 200 completely opens the air inlet 103.

[0063] In some embodiments, referring to Figure 6, the range hood in the present application further includes a fixing member 300, which is connected to the casing 100.

[0064] Among them, the fixing member 300 can be located inside the accommodating cavity 102 or outside the casing 100. Hereinafter, an exemplary description will be given with the fixing member 300 located inside the accommodating cavity 102.

[0065] In some embodiments, referring to Figure 7 and Figure 8 , the range hood in the present application includes a clamping member 400, and the clamping member 400 is connected to the baffle 200 so that when the baffle 200 closes the air suction opening 103, the casing 100 can further fix the baffle 200 through the clamping member 400.

[0066] In some embodiments, referring to Figure 9 , the range hood in the present application includes a first clamping jaw 600 and a second clamping jaw 700. The first clamping jaw 600 and the second clamping jaw 700 can move in a direction close to or away from each other so that the first clamping jaw 600 and the second clamping jaw 700 can release and lock the clamping member 400.

[0067] It can be understood that when the first clamping jaw 600 and the second clamping jaw 700 move in a direction close to each other, the first clamping jaw 600 and the second clamping jaw 700 can lock the clamping member 400; specifically, the first clamping jaw 600 and the second clamping jaw 700 clamp the clamping member 400 from opposite sides of the clamping member 400, thereby locking the clamping member 400.

[0068] When the first clamping jaw 600 and the second clamping jaw 700 move in a direction away from each other, the first clamping jaw 600 and the second clamping jaw 700 can release the clamping member 400. Specifically, when the first clamping jaw 600 and the second clamping jaw 700 move in a direction away from each other, the first clamping jaw 600 and the second clamping jaw 700 can move away from the clamping member 400, thereby loosening the clamping of the clamping member 400 to release the clamping member 400.

[0069] Furthermore, the first clamping jaw 600 and the second clamping jaw 700 are spaced apart in a direction perpendicular to the sliding direction of the baffle 200. The clamping member 400 is provided on a side wall of the baffle 200 close to the first clamping jaw 600 and the second clamping jaw 700. The first clamping jaw 600 and the second clamping jaw 700 are respectively connected to the fixing member 300.

[0070] In this way, during the process of the clamping member 400 moving as the baffle 200 slides, the clamping member 400 can gradually enter between the first clamping jaw 600 and the second clamping jaw 700 or move out from between the first clamping jaw 600 and the second clamping jaw 700.

[0071] During the process of the baffle 200 closing the air suction opening 103, the clamping member 400 gradually enters between the first claw 600 and the second claw 700, and the first claw 600 and the second claw 700 move towards each other, so that the first claw 600 and the second claw 700 lock the clamping member 400, making the clamping member 400 unable to move, and then the baffle 200 can be fixed at the position of closing the air suction opening 103.

[0072] In this way, when the baffle 200 closes the air suction opening 103, the baffle 200 of the range hood can be firmly closed on the air suction opening 103, and will not slide outwards from the casing 100 due to accidents such as collisions or its own weight, avoiding dangerous situations or affecting the user experience.

[0073] Moreover, the baffle 200 being stable in the closed position can make the appearance of the range hood neater and more beautiful in the closed state.

[0074] Exemplarily, the first claw 600 and the second claw 700 can rotate in the direction of approaching or moving away from each other, and the first claw 600 and the second claw 700 can also slide in the direction of approaching or moving away from each other. This application does not limit this.

[0075] The following takes the first claw 600 and the second claw 700 being able to rotate in the direction of approaching or moving away from each other as an example for illustration.

[0076] In some embodiments, referring to Figure 10 , the fixing member 300 includes a fixing shell 301, and the fixing shell 301 is connected to the casing 100. The fixing shell 301 can effectively isolate and protect the internal components of the fixing member 300 from damage by dust, dirt and other external environmental factors, reducing the possibility of failures and damages.

[0077] Moreover, it can make the internal components of the fixing member 300 work without being interfered by the work of external components (such as the fan 500 of the range hood), further improving the stability of the working process of the fixing member 300.

[0078] In some embodiments, referring to Figure 11 and Figure 12 , the fixing member 300 includes a first connecting rod 302. One end of the first connecting rod 302 is rotatably connected to the fixing shell 301. Among them, the first connecting rod 302 includes a connecting portion 3022 and a limiting portion 3021. One end of the connecting portion 3022 is rotatably connected to the fixing shell 301, and the other end of the connecting portion 3022 is fixedly connected to the limiting portion 3021.

[0079] Exemplarily, one end of the connecting portion 3022 of the first connecting rod 302 is rotatably connected to the fixing shell 301 through a hinge.

[0080] Exemplarily, one end of the connecting portion 3022 of the first link 302 is rotatably connected to the fixed housing 301 by a pin shaft.

[0081] It should be noted that the limiting portion 3021 and the connecting portion 3022 may be integrally formed, or the limiting portion 3021 and the connecting portion 3022 may be connected by welding. The present application does not make any limitations in this regard.

[0082] Among them, Figure 9 The state shown is when the first claw 600 and the second claw 700 are closed. Figure 11 The state shown is when the first claw 600 and the second claw 700 are open.

[0083] In some embodiments, referring further to Figure 11 , the fixing member 300 further includes a slider 303, and the slider 303 is slidably connected to the fixed housing 301.

[0084] Exemplarily, the slider 303 is slidably connected to the outer shell of the fixed housing 301.

[0085] Another exemplarily, referring further to Figure 9 , the fixed housing 301 forms a receiving cavity 3011, the slider 303 is located in the receiving cavity 3011, and the slider 303 can slide in the receiving cavity 3011. Among them, the shape and size of the slider 303 match the shape and size of the receiving cavity 3011, so that when the slider 303 slides in the receiving cavity 3011, it can only slide along one direction and will not deviate from the sliding direction.

[0086] At the same time, it can also reduce the shaking generated when the slider 303 slides in the receiving cavity 3011, making the sliding of the slider 303 in the receiving cavity 3011 more stable.

[0087] Furthermore, the slider 303 includes a first surface 3032 on the side close to the baffle 200. An annular groove 3031 is provided on the first surface 3032 of the slider 303. The first surface 3032 is parallel to the sliding direction of the baffle 200. The other end of the first link 302 is slidably connected to the annular groove 3031, that is, the end of the limiting portion 3021 of the first link 302 away from the connecting portion 3022 is slidably connected to the annular groove 3031.

[0088] On the one hand, the annular groove 3031 can effectively limit the sliding range of the limiting portion 3021 of the first link 302, thereby achieving precise positioning and sliding control to ensure that the limiting portion 3021 of the first link 302 can slide within a preset range, further ensuring the stability during the sliding process of the slider 303.

[0089] On the other hand, the annular groove 3031 can provide good support and positioning for the first connecting rod 302, enabling the first connecting rod 302 to maintain stability during movement, reducing vibration and swing, and improving the stability and working efficiency of the system.

[0090] Further, when the baffle 200 closes the air suction port 103, the first connecting rod 302 abuts against the inner wall surface of the annular groove 3031 on the side close to the baffle 200. The wall surface of the baffle 200 can hold the first connecting rod 302 in place, so that the slider 303 is fixed at this position, and thus the baffle 200 is fixed at this position. At this time, the fixed position of the baffle 200 is the position where the baffle 200 closes the air suction port 103.

[0091] Exemplarily, refer to Figure 12 , when the baffle 200 closes the air suction port 103, that is, when the baffle 200 is in the first position, the first connecting rod 302 abuts against the inner wall surface of the annular groove 3031 on the side close to the baffle 200.

[0092] In some embodiments, refer to Figure 13 , a recessed portion 30312 that is recessed toward the machine housing 100 is formed on the side of the annular groove 3031 close to the baffle 200. When the baffle 200 closes the air suction port 103, that is, when the baffle 200 is in the first position, the limiting portion 3021 of the first connecting rod 302 is located in the recessed portion 30312, and the limiting portion 3021 of the first connecting rod 302 abuts against the wall surface of the recessed portion 30312. Thus, the first connecting rod 302 is relatively fixed to the slider 303, and along the sliding direction of the baffle 200, the first connecting rod 302 cannot continue to slide. Therefore, the baffle 200 can be fixed in the first position, thereby preventing the baffle 200 from accidentally sliding out.

[0093] Exemplarily, a first opening 3012 is formed on the surface of the fixed housing 301. The first claw 600 and the second claw 700 can enter and exit the accommodating cavity 3011 through the first opening 3012 under the pushing of the baffle 200, or the first claw 600 and the second claw 700 rotate on the outer surface of the fixed housing 301. In this regard, the present application does not make any limitation.

[0094] The following content takes the formation of the first opening 3012 on the surface of the fixed housing 301 and the first claw 600 and the second claw 700 can enter and exit the accommodating cavity 3011 through the first opening 3012 under the pushing of the baffle 200 as an example to illustrate the present application.

[0095] When the baffle 200 slides from the second position to the first position, that is, when the baffle 200 closes the air suction port 103, the first claw 600 and the second claw 700 enter the accommodating cavity 3011 under the pushing of the fixing member 300.

[0096] In some embodiments, refer toFigure 12 The bottom wall surface of the annular groove 3031 includes a plurality of stepped surfaces 30311 that are sequentially connected end to end. For any two adjacent stepped surfaces 30311, the distance between the leading end of one of them and the first surface 3032 is less than the distance between the trailing end of the other stepped surface 30311 and the first surface 3032.

[0097] In this way, when the first link 302 slides in the annular groove 3031, it can only slide from the stepped surface 30311 with a larger distance from the first surface 3032 to the stepped surface 30311 with a smaller distance from the first surface 3032. The annular groove 3031 plays a guiding role for the first link 302. The stepped surface 30311 can ensure that the first link 302 slides along a fixed direction. The first link 302 can slide in a specific path within the annular groove 3031. When the first link 302 slides in the reverse direction, the step of the stepped surface 30311 with a larger distance from the first surface 3032 will act as an obstacle to it.

[0098] It should be noted that the above arrangement of the stepped surfaces 30311 can be set clockwise or counterclockwise, and this application does not limit this.

[0099] Thus, this application can prevent the first link 302 from sliding in the reverse direction during the sliding process, ensuring that the first link 302 can slide in a fixed direction.

[0100] In some embodiments, referring to Figure 14 The fixing member 300 further includes a first limiting member and a second limiting member. The first limiting member is located on the side of the first claw 600 away from the second claw 700, and the second limiting member is located on the side of the second claw 700 away from the first claw 600.

[0101] Among them, a limiting cavity 900 for clamping with the fixing member 300 is formed between the first claw 600 and the second claw 700.

[0102] Exemplarily, the first claw 600 and the second claw 700 are arranged in the accommodating cavity 3011 and are close to the first opening 3012.

[0103] Furthermore, the first limiting member abuts against the first claw 600, and the second limiting member abuts against the second claw 700. Under the action of the first limiting member and the second limiting member, the first claw 600 and the second claw 700 rotate towards each other, and the volume of the limiting cavity 900 gradually becomes smaller.

[0104] During the process of the baffle 200 closing the air suction port 103, after the clamping member 400 is clamped with the first claw 600 and the second claw 700, as the baffle 200 continues to slide, the baffle 200 pushes the first claw 600 and the second claw 700 into the accommodation cavity 3011 through the clamping member 400. The first limiting member and the second limiting member limit the opening of the first claw 600 and the second claw 700 on both sides of the first claw 600 and the second claw 700.

[0105] When the first claw 600 and the second claw 700 completely enter the accommodation cavity 3011, the first limiting member abuts against one end of the first claw 600 close to the baffle 200, and the second limiting member abuts against one end of the second claw 700 close to the baffle 200.

[0106] In some embodiments, the first limiting member and the second limiting member can be formed by the wall surface of the first opening 3012. The first claw 600 and the second claw 700 respectively abut against the wall surfaces on both sides of the first opening 3012.

[0107] In some embodiments, refer to Figure 14 , the first limiting member is the first roller 304, and the first roller 304 is rotatably connected to the fixed housing 301. The second limiting member is the second roller 305, and the second roller 305 is rotatably connected to the fixed housing 301.

[0108] Thus, when the first claw 600 enters the accommodation cavity 3011 through the first opening 3012, the wall surface of the first claw 600 abuts against the first roller 304, and the first claw 600 is slidably connected to the first roller 304. Correspondingly, when the second claw 700 enters the accommodation cavity 3011 through the first opening 3012, the wall surface of the second claw 700 abuts against the second roller 305, and the second claw 700 is slidably connected to the second roller 305.

[0109] On this basis, the first roller 304 can reduce the friction force received by the wall surface of the first claw 600 during the movement, make the rotation of the first claw 600 smoother, and make the movement of the first claw 600 more smooth and easy when the first claw 600 enters and exits the accommodation cavity 3011. At the same time, the noise generated during the operation of the first claw 600 will also be reduced. In addition, the first roller 304 can also reduce the wear of the first claw 600 and extend the service life of the first claw 600.

[0110] Accordingly, the second roller 305 can reduce the frictional force on the wall surface of the second claw 700 during movement, making the rotation of the second claw 700 smoother. When the second claw 700 enters and exits the accommodation cavity 3011, the movement of the second claw 700 is more smooth and easy. At the same time, the noise generated during the operation of the second claw 700 will also be reduced. In addition, the second roller 305 can also reduce the wear of the second claw 700 and extend the service life of the second claw 700.

[0111] In some other embodiments, referring to Figure 12 , the fixing member 300 further includes a first resilient member and a second resilient member. The first resilient member is connected to the slider 303 and is also connected to the first claw 600. The second resilient member is connected to the slider 303 and is also connected to the second claw 700.

[0112] When the baffle 200 closes the air suction port 103, the first resilient member and the second resilient member are compressed.

[0113] Exemplarily, the first resilient member is a first torsion spring 601, and the second resilient member is a second torsion spring 701.

[0114] Among them, the torsion spring is a common type of spring, which can generate rotational deformation by receiving torque and is used to store and release energy. When the torsion spring is twisted by an external force, it stores elastic energy. When the external force disappears, the torsion spring releases the stored energy, thereby generating a resilient effect.

[0115] The first claw 600 rotates under the action of the first limiting member. During the rotation of the first claw 600, the first claw 600 applies an external force to the first torsion spring 601, and the first torsion spring 601 is twisted by the external force. At this time, the first torsion spring 601 will deform and store elastic energy.

[0116] When the first claw 600 disengages from the first limiting member, the first claw 600 no longer receives the acting force, and thus no longer applies an external force to the first torsion spring 601. In this way, the external force on the first torsion spring 601 disappears, and the first torsion spring 601 will release the stored energy. The first torsion spring 601 will give a acting force to the first claw 600, causing the first claw 600 to start rotating. Through the resilience of the first torsion spring 601, the first claw 600 can be pushed to rotate to the original position, that is, the position where the clamping member 400 is released.

[0117] At the same time, the second claw 700 rotates under the action of the second limiting member. During the rotation of the second claw 700, the second claw 700 applies an external force to the second torsion spring 701, and the second torsion spring 701 is twisted by the external force. At this time, the second torsion spring 701 will deform and store elastic energy.

[0118] When the second jaw 700 disengages from the second limiting member, the second jaw 700 no longer receives a force, and thus no external force is applied to the second torsion spring 701 either. As a result, the external force acting on the second torsion spring 701 disappears, and the second torsion spring 701 releases the stored energy. The second torsion spring 701 exerts a force on the second jaw 700, causing the second jaw 700 to start rotating. The resilience of the second torsion spring 701 can push the second jaw 700 to rotate to its original position, that is, the position where the engaging member 400 is released.

[0119] Specifically, when the baffle 200 slides and drives the engaging member 400 to slide into the limiting cavity 900 between the first jaw 600 and the second jaw 700, and continues to push the engaging member 400, after the engaging member 400 abuts against the first jaw 600 and the second jaw 700, the first jaw 600 and the second jaw 700 extend into the accommodating cavity 3011 through the first opening 3012.

[0120] At this time, the first jaw 600 is subjected to the force of the first roller 304 and rotates in the direction close to the second jaw 700, and the second jaw 700 is subjected to the force of the second roller 305 and rotates in the direction close to the first jaw 600. While the first jaw 600 and the second jaw 700 are rotating, the first torsion spring 601 and the second torsion spring 701 are respectively compressed by the forces of the first jaw 600 and the second jaw 700.

[0121] When the baffle 200 completely closes the air suction port 103, the first jaw 600 and the second jaw 700 snap the engaging member 400 into the limiting cavity 900. The limiting portion 3021 of the first connecting rod 302 abuts against the wall surface of the recessed portion 30312, so that the first connecting rod 302 and the slider 303 are relatively fixed. Along the sliding direction of the baffle 200, the first connecting rod 302 cannot continue to slide, and the slider 303 cannot slide either. Thus, the first jaw 600 and the second jaw will not undergo any displacement. By restricting the engaging member 400 in the limiting cavity 900, the position of the engaging member 400 is further made unchangeable, so that the baffle 200 can be fixed at the first position.

[0122] To avoid the engaging member 400 directly colliding with the first jaw 600 and the second jaw 700, in some embodiments, refer to Figure 15 , the range hood in the present application further includes an abutting block 800. The abutting block 800 is connected to the fixing member 300 and is disposed between the first jaw 600 and the second jaw 700. When the baffle 200 closes the air suction port 103, the engaging member 400 abuts against the abutting block 800.

[0123] It should be noted that when the first jaw 600 and the second jaw 700 are fully extended out of the accommodation cavity 3011, the first limiting member no longer exerts a force on the first jaw 600, and the second limiting member no longer exerts a force on the second jaw 700. At this time, the first jaw 600 rotates away from the second jaw 700 under the action of the first torsion spring 601, and the second jaw 700 rotates away from the first jaw 600 under the action of the second torsion spring 701.

[0124] When the compression amount of the first torsion spring 601 is cleared to zero, the first jaw 600 rotates to the initial position.

[0125] At this time, if the first jaw 600 continues to rotate, the first torsion spring 601 will still generate a pulling force on the first jaw 600 towards the second jaw 700 to prevent the first jaw 600 from rotating excessively and affecting the user from closing the baffle 200 again.

[0126] Correspondingly, when the compression amount of the second torsion spring 701 is cleared to zero, the second jaw 700 rotates to the initial position. At this time, if the second jaw 700 continues to rotate, the second torsion spring 701 will still generate a pulling force on the second jaw 700 towards the first jaw 600 to prevent the second jaw 700 from rotating excessively and affecting the user from closing the baffle 200 again.

[0127] In addition, by reasonably setting the parameters and structures of the first torsion spring 601 and the second torsion spring 701, precise control of the rotation positions and rotation speeds of the first jaw 600 and the second jaw 700 can be achieved, and the first torsion spring 601 and the second torsion spring 701 have a long service life and stable performance, can maintain a good working state for a long time, and have strong reliability.

[0128] Another example is that the first resilient member can also be a first rotating shaft with air pressure, and the second resilient member can also be a second rotating shaft with air pressure.

[0129] Specifically, by pressurizing the gas inside the first rotating shaft and the second rotating shaft device, when the external force disappears, that is, when the forces exerted by the first limiting member and the second limiting member on the first jaw 600 and the second jaw 700 disappear, the air pressure inside the first rotating shaft and the second rotating shaft will push the first jaw 600 and the second jaw 700 to rotate to the original position.

[0130] In some embodiments, refer to Figure 16 and Figure 17, the snap-in member 400 includes a connecting rod 401 and a snap ball 402. One end of the connecting rod 401 is connected to the baffle 200, and the other end of the connecting rod 401 is connected to the snap ball 402. When the baffle 200 closes the air suction port 103, the snap ball 402 is located between the first claw 600 and the second claw 700, and the first claw 600 and the second claw 700 lock the snap ball 402.

[0131] In this way, when the snap ball 402 abuts against the abutting block 800, it can make the abutting block 800 evenly receive force in all directions, reduce the stress concentration of the abutting block 800, and is beneficial to extending the service life. At the same time, it can reduce the vibration generated when the snap ball 402 abuts against the abutting block 800, and improve the stability and reliability of the entire range hood.

[0132] Furthermore, in order to make the damping effect of the snap ball 402 better, the snap ball 402 is made of rubber.

[0133] At the same time, by connecting the snap ball 402 and the baffle 200 through the connecting rod 401, when the baffle 200 quickly closes the air suction port 103, the snap ball 402 can drive the first claw 600 and the second claw 700 to rotate by pushing the abutting block 800, providing a rotation stroke for the first claw 600 and the second claw 700 and a snap-in stroke between the snap ball 402 and the first claw 600 and the second claw 700.

[0134] In some embodiments, referring to Figure 15 and Figure 17 , a first notch 602 communicating the limiting cavity 900 and the accommodating cavity 102 is formed at one end of the first claw 600 close to the baffle 200 in this application, and a second notch 703 communicating the limiting cavity 900 and the accommodating cavity 102 is formed at one end of the second claw 700 close to the baffle 200. When the first claw 600 and the second claw 700 rotate to the buckled state, the first notch 602 and the second notch 703 form an avoidance opening, so that the movement of the snap-in member 400 does not interfere with the rotation of the first claw 600 and the second claw 700, and the stability of the entire device is improved.

[0135] In some embodiments, referring to Figure 9 , the range hood in this application further includes a third elastic member 306. One end of the third elastic member 306 is connected to the slider 303, and the other end of the third elastic member 306 is connected to the fixed housing 301. When the slider 303 is located in the accommodating cavity 3011, the third elastic member 306 is located in the accommodating cavity 3011.

[0136] When the clamping member 400 pushes the abutting block 800 to drive the first clamping jaw 600 and the second clamping jaw 700 to extend out of the fixed housing 301, the clamping member 400 also drives the slider 303 to slide by driving the first clamping jaw 600 and the second clamping jaw 700 to move. At this time, the slider 303 exerts a force on the third elastic member 306, and the third elastic member 306 will deform, and the third elastic member 306 stores elastic potential energy.

[0137] When the force between the clamping member 400 and the first clamping jaw 600 and the second clamping jaw 700 disappears, the third elastic member 306 releases the stored elastic potential energy, pulls the slider 303 to stop moving, thereby restricting the first clamping jaw 600 and the second clamping jaw 700 at the first opening 3012 to ensure the reliability of the device.

[0138] It should be noted that when the baffle 200 closes the air suction port 103, the baffle 200 drives the slider 303 to slide in a direction away from the baffle 200 through the clamping member 400. When the baffle 200 is in the first position, the third elastic member 306 returns to its initial state.

[0139] See Figure 18 and Figure 19 , when the user needs to open the baffle 200, the baffle 200 can be pressed, so that the baffle 200 will generate a pressing force on the slider 303 through the clamping member 400. The slider 303 will exert a force on the third elastic member 306, and the third elastic member 306 will generate a reaction force on the slider 303. In this way, the third elastic member 306 pushes the slider 303 to slide in the direction of the baffle 200. The first connecting rod 302 is disengaged from the recess 30312 and slides to the end of the annular groove 3031 away from the baffle under the guidance of the annular groove 3031, thereby releasing the restriction on the slider 303 and the first clamping jaw 600 and the second clamping jaw 700, and the clamping member 400 can more easily drive the first clamping jaw 600 and the second clamping jaw 700 to slide out of the accommodation cavity 3011.

[0140] See Figure 20 , further, when the baffle 200 closes the air suction port 103, the baffle 200 drives the slider 303 to slide in a direction away from the baffle 200 through the clamping member 400. When the baffle 200 is in the first position, the third elastic member 306 is still compressed by the slider 303 and has a preset compression amount.

[0141] In this way, when the user needs to open the baffle 200, by pressing the baffle 200, the third resilient member 306 can generate a relatively large force on the slider 303, so that the slider 303 can slide more easily, and the first connecting rod 302 can be more easily disengaged from the recess 30312, thus being able to more easily release the restrictions on the slider 303, the first claw 600 and the second claw 700, and the engaging member 400 can more easily drive the first claw 600 and the second claw 700 to slide out of the accommodation cavity 3011. Therefore, it is convenient for the user to operate.

[0142] Among them, the third resilient member 306 can be a spring or an elastic cord, and the present application does not limit this.

[0143] Although the present application has been described in conjunction with various embodiments, however, in the process of implementing the claimed present application, those skilled in the art can understand and achieve other variations of the disclosed embodiments by viewing the drawings, the disclosed content, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality. A single processor or other unit can implement several functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0144] Although the present application has been described in conjunction with specific features and their embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the present application. Accordingly, the present specification and the drawings are merely exemplary illustrations of the present application defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

[0145] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A range hood, characterized in that: include: The housing is formed with a receiving cavity and an air inlet connecting the receiving cavity with the outside; A slide rail connected to the housing; A baffle, disposed at the air inlet and slidably connected to the housing, the baffle being used to open and close the air inlet; A fixing member, disposed in the accommodating cavity and connected to the housing; A clamping piece, the clamping piece is connected to the baffle; a first claw and a second claw, wherein the first claw and the second claw are spaced apart in a direction perpendicular to the sliding direction of the baffle, the first claw and the second claw are respectively connected to the fixing member, and the first claw and the second claw can move in a direction close to or away from each other, so that the first claw and the second claw can release and lock the clamping member; Wherein, when the baffle closes the air inlet, the clamping member is located between the first clamping claw and the second clamping claw, and the first clamping claw and the second clamping claw lock the clamping member.

2. The range hood according to claim 1, characterized in that: The fixing member comprises: A fixed shell connected to the housing; A first connecting rod, one end of which is rotatably connected to the fixed shell; A slider is slidably connected to the fixed shell, a first surface of the slider is provided with an annular groove, the first surface is parallel to the sliding direction of the baffle, and the other end of the first connecting rod is slidably connected to the annular groove; When the baffle closes the air inlet, the first connecting rod abuts against the inner wall surface of the annular groove on the side close to the baffle.

3. The range hood according to claim 2, characterized in that: The fixing member further includes a first limiting member and a second limiting member, wherein the first limiting member is located at a side of the first claw away from the second claw, and the second limiting member is located at a side of the second claw away from the first claw; When the baffle closes the air inlet, the first position-limiting member abuts against the first claw, and the second position-limiting member abuts against the second claw.

4. The range hood according to claim 3, characterized in that: The first limiting member is a first roller, which is rotatably connected to the fixed shell; and / or the second limiting member is a second roller, which is rotatably connected to the fixed shell.

5. The range hood according to claim 3, characterized in that: Also includes: A first resilient member, wherein the first resilient member is connected to the slider, and the first resilient member is connected to the first claw; a second resilient member, the second resilient member being connected to the slider, and the second resilient member being connected to the second claw; When the baffle closes the air inlet, the first resilient member and the second resilient member are compressed.

6. The range hood according to any one of claims 1 to 5, characterized in that: The clamping member includes a connecting rod and a clamping ball, one end of the connecting rod is connected to the baffle, and the other end of the connecting rod is connected to the clamping ball. When the baffle closes the air intake port, the clamping ball is located between the first clamping claw and the second clamping claw, and the first clamping claw and the second clamping claw lock the clamping ball.

7. The range hood according to claim 6, characterized in that: It also includes an abutment block, which is connected to the fixing member and is arranged between the first clamping claw and the second clamping claw. When the baffle closes the air suction port, the clamping ball abuts against the abutment block.

8. The range hood according to claim 2, characterized in that: The bottom wall surface of the annular groove includes a plurality of step surfaces connected end to end in sequence, and the distance between the head end of any two adjacent step surfaces and the first surface is smaller than the distance between the tail end of the other step surface and the first surface.

9. The range hood according to claim 2, characterized in that: Also includes: A third resilient member, one end of which is connected to the slider, and the other end of which is connected to the fixed shell.

10. A range hood, characterized in that: include: The housing is formed with a receiving cavity and an air inlet connecting the receiving cavity with the outside; A slide rail connected to the housing; A baffle, disposed at the air suction port and slidably connected to the slide rail, the baffle being used to open and close the air suction port; A fixing member connected to the housing; A clamping piece, the clamping piece is connected to the baffle; a first claw and a second claw, wherein the first claw and the second claw are spaced apart in a direction perpendicular to the sliding direction of the baffle, the first claw and the second claw are respectively connected to the fixing member, and the first claw and the second claw can move in a direction close to or away from each other, so that the first claw and the second claw can release and lock the clamping member; Wherein, when the baffle closes the air inlet, the clamping member is located between the first clamping claw and the second clamping claw, and the first clamping claw and the second clamping claw lock the clamping member.

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