An air curtain device

Abstract

The present invention relates to the technical field of kitchen appliances, and discloses an air curtain device. The air curtain device includes an air curtain module and a purification module. The air curtain module includes an air curtain tube body and an air outlet structure arranged on the air curtain tube body, and an air curtain outlet is arranged on the air outlet structure. The air outlet position and the air outlet angle of the air curtain outlet are adjustable, and the air in the air curtain tube body forms an air curtain wall through the air curtain outlet. The purification module is detachably arranged on the air curtain tube body, and the purification module includes a purification filter element and a fan. The purification filter element is used to purify the air, and the fan is used to transport the air into the air curtain tube body. The present invention has the characteristics of simple structure, stable installation, good sealing, and easy disassembly. The purification module ensures that the air of the air curtain is purified before it is blown out, and it is simple to install and easy to replace. The air outlet position and the air outlet angle of the air curtain outlet are adjustable, and can be adjusted for range hoods of different structural sizes, thereby enhancing the adaptability of the air curtain and more accurately setting the smoke collection range.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to an air curtain device. Background Art

[0002] Due to the influence of kitchen environment and the performance of range hoods, all range hoods on the market have different degrees of oil smoke escape. Therefore, air curtain technology came into being. The airflow blown out by the existing air curtain device is not purified, and it belongs to the internal circulation of polluted air in the kitchen, which affects the user experience. Summary of the invention

[0003] Based on the above problems, an object of the present invention is to provide an air curtain device, which can ensure that the air of the air curtain is purified before being blown out.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An air curtain device, comprising:

[0006] The air curtain module comprises an air curtain tube body and an air outlet structure arranged on the air curtain tube body, the air outlet structure is provided with an air curtain air outlet, the air outlet position and the air outlet angle of the air curtain air outlet are adjustable, and the air in the air curtain tube body forms an air curtain wall through the air curtain air outlet;

[0007] The purification module is detachably arranged on the air curtain tube body, and the purification module comprises a purification filter element and a fan. The purification filter element is used to purify the air, and the fan is used to transport the air into the air curtain tube body.

[0008] As an optional solution of the air curtain device of the present invention, the air outlet structure includes:

[0009] A movable frame is adjustably arranged on the air curtain tube body, the movable frame comprises a receiving portion, the inner cavity of the receiving portion is communicated with the inner cavity of the air curtain tube body, and an avoidance notch is opened on the receiving portion;

[0010] The air outlet member includes a rotating part and an air outlet portion arranged on the rotating part, the rotating part can be rotatably arranged in the accommodating part, the inner cavity of the rotating part is communicated with the inner cavity of the accommodating part, the air outlet portion extends out of the avoidance gap, the wind curtain air outlet is arranged on the air outlet portion, and the wind curtain air outlet is communicated with the inner cavity of the rotating part.

[0011] As an optional solution of the wind curtain device of the present invention, the air outlet structure also includes a flexible belt and multiple rollers, the multiple rollers are rotatably arranged in the wind curtain tube body, the flexible belt is wound around the multiple rollers, and the flexible belt is connected to the accommodating portion.

[0012] As an alternative to the air curtain device of the present invention, the air outlet structure further includes a driving gear rotatably disposed in the air curtain tube body, and the driving gear is used to drive the flexible belt to slide around the roller shaft.

[0013] As an alternative to the air curtain device of the present invention, the air outlet structure further includes a transmission gear meshing with the driving gear. The transmission gear is rotatably disposed in the air curtain tube body. A tooth portion is provided on the flexible belt, and the transmission gear meshes with the tooth portion.

[0014] As an alternative to the air curtain device of the present invention, a gear shaft is provided on the driving gear, and the gear shaft is rotatably engaged with the air curtain tube body. A first knob is provided at an end of the gear shaft away from the driving gear, and the first knob is located outside the air curtain tube body.

[0015] As an alternative to the air curtain device of the present invention, a mounting shaft is provided on the rotating portion, and the mounting shaft is rotatably engaged with the accommodating portion. A second knob is provided at an end of the mounting shaft away from the rotating portion, and the second knob is located outside the air curtain tube body.

[0016] As an alternative to the air curtain device of the present invention, the purification module includes a base, on which an air duct air outlet and a first mounting boss are provided. The first mounting boss surrounds the periphery of the air duct air outlet; an air inlet and a second mounting boss are provided on the air curtain tube body. The air inlet communicates with the air duct air outlet, and the second mounting boss surrounds the periphery of the air inlet.

[0017] As an alternative to the air curtain device of the present invention, a sealing protrusion is provided on the outer peripheral side of the first mounting boss, and a sealing groove slidably engaged with the sealing protrusion is provided on the inner peripheral side of the second mounting boss; and / or, a sealing groove is provided on the inner peripheral side of the first mounting boss, and a sealing protrusion slidably engaged with the sealing groove is provided on the outer peripheral side of the second mounting boss.

[0018] As an alternative to the air curtain device of the present invention, an elastic protrusion is provided on the sealing protrusion, and a limiting groove cooperating with the elastic protrusion is provided on the groove wall of the sealing groove.

[0019] As an alternative embodiment of the air curtain device of the present invention, it further includes a locking assembly disposed on the air curtain tube body. The purification module includes a housing, and a jack is provided on the housing. The locking assembly includes a housing, a locking pin, a reset button, and a first elastic member. The locking pin and the reset button are respectively slidably disposed on the housing, and the first elastic member is clamped between the housing and the locking pin. The locking pin can extend into the jack under the elastic force of the first elastic member, and pressing the reset button can push the locking pin to overcome the elastic force of the first elastic member and disengage from the jack.

[0020] As an alternative embodiment of the air curtain device of the present invention, a driving groove is provided on the reset button, and a driving block slidably engaged with the driving groove is provided on the locking pin. The sliding mating surface of the driving groove and the driving block is an inclined surface, and the sliding direction of the locking pin is perpendicular to the sliding direction of the reset button.

[0021] The beneficial effects of the present invention are as follows:

[0022] The air curtain device provided by the present invention combines the air curtain module and the purification module, and has the characteristics of simple structure, stable installation, good sealing performance, and easy disassembly. The purification module ensures that the air curtain is purified before being blown out, and is simple to install and convenient to replace. The air outlet position and air outlet angle of the air curtain outlet are adjustable, and can be adjusted according to the range hoods of different structural dimensions, enhancing the adaptability of the air curtain and more accurately setting the smoke collection range. The air curtain device is an independent component, placed around the cooking appliance on the stove top, not integrated with the range hood, and can be used to improve the oil suction effect of all range hoods on the market without affecting the installation and matching of the range hood and the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the content of the embodiments of the present invention and these drawings without creative efforts.

[0024] Figure 1 FIG. 18 is a schematic structural diagram of the air curtain device provided by the specific embodiment of the present invention installed on the stove top;

[0025] Figure 2 FIG. 22 is a partial structural diagram of the air curtain device provided by the specific embodiment of the present invention installed on the stove top;

[0026] Figure 3 FIG. 26 is a schematic structural diagram of the air curtain module and the locking assembly in the air curtain device provided by the specific embodiment of the present invention;

[0027] Figure 4 Is Figure 3 An enlarged schematic view after hiding the end cover at position A in

[0028] Figure 5 Is a schematic structural view of the flexible belt in the air curtain device provided by the specific embodiment of the present invention;

[0029] Figure 6 Is Figure 5 An enlarged schematic view at position B in

[0030] Figure 7 Is a schematic structural view of the moving frame in the air curtain device provided by the specific embodiment of the present invention;

[0031] Figure 8 Is Figure 7 An enlarged schematic view at position C in

[0032] Figure 9 Is a schematic structural view of the air outlet member in the air curtain device provided by the specific embodiment of the present invention;

[0033] Figure 10 Is Figure 9 An enlarged schematic view at position D in

[0034] Figure 11 Is a schematic structural view of the drive gear in the air curtain device provided by the specific embodiment of the present invention;

[0035] Figure 12 Is a schematic structural view of the end cover in the air curtain device provided by the specific embodiment of the present invention;

[0036] Figure 13 Is a schematic structural view of the air curtain tube body and the locking assembly in the air curtain device provided by the specific embodiment of the present invention;

[0037] Figure 14 Is Figure 13 An enlarged schematic view at position E in

[0038] Figure 15 Is a schematic structural view of the purification module in the air curtain device provided by the specific embodiment of the present invention;

[0039] Figure 16 Is a schematic structural view of the locking assembly in the air curtain device provided by the specific embodiment of the present invention;

[0040] Figure 17 Is a schematic structural view of the locking pin in the air curtain device provided by the specific embodiment of the present invention;

[0041] Figure 18 Is a schematic structural view of the reset button in the air curtain device provided by the specific embodiment of the present invention;

[0042] Figure 19 It is a schematic structural diagram of the housing and the first guide plate in the air curtain device provided by the specific embodiment of the present invention;

[0043] Figure 20 It is a schematic structural diagram of the second guide plate in the air curtain device provided by the specific embodiment of the present invention;

[0044] Figure 21 It is a schematic structural diagram of the locking component in the air curtain device provided by the specific embodiment of the present invention before locking;

[0045] Figure 22 It is a schematic structural diagram of the locking component in the air curtain device provided by the specific embodiment of the present invention after locking.

[0046] In the figure:

[0047] 1 - air curtain module; 2 - purification module; 3 - locking component;

[0048] 11 - air curtain pipe body; 12 - air outlet structure; 13 - end cover; 131 - second through hole; 132 - third through hole;

[0049] 111 - air inlet; 112 - second mounting boss; 113 - sealing groove; 114 - support rib; 115 - fourth through hole;

[0050] 1121 - first boss; 1122 - second boss; 1123 - third boss;

[0051] 121 - moving frame; 122 - air outlet part; 123 - flexible belt; 1231 - tooth part; 124 - roller; 125 - driving gear; 1251 - gear shaft; 1252 - first knob; 126 - transmission gear;

[0052] 1211 - accommodating part; 1212 - avoiding notch; 1213 - connecting plate; 1214 - first through hole;

[0053] 1221 - rotating part; 1222 - air outlet part; 1223 - air curtain air outlet; 1224 - mounting shaft; 1225 - second knob;

[0054] 21 - purification filter element; 22 - fan; 23 - base; 24 - outer shell;

[0055] 231 - air duct air outlet; 232 - first mounting boss; 233 - sealing protrusion;

[0056] 2321 - fourth boss; 2322 - fifth boss; 2323 - sixth boss; 2324 - seventh boss;

[0057] 241 - Jack; 242 - Guide groove; 243 - Air inlet hole;

[0058] 31 - Housing; 311 - Avoidance hole; 32 - Lock pin; 33 - Reset button; 34 - First elastic member; 35 - Second elastic member; 36 - First guide plate; 37 - Second guide plate; 371 - Arc plate; 372 - Avoidance groove; 38 - Slide groove;

[0059] 321 - Driving block; 322 - Guide post; 323 - Pin head;

[0060] 331 - Driving groove; 332 - Shoulder;

[0061] 100 - Cooktop; 200 - Cooker; 300 - Range hood. Detailed implementation manner

[0062] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present invention.

[0063] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0064] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0065] Such as Figures 1 to 22As shown in the figure, this embodiment provides an air curtain device. This air curtain device is placed around the cooking appliance 200 of the cooking range 100 as an independent component and is not integrated with the range hood 300. It can be used to improve the oil suction effect of all range hoods on the market without affecting the installation and matching of the range hood 300 and the cabinet. This air curtain device includes an air curtain module 1 and a purification module 2. This air curtain device combines the air curtain module 1 and the purification module 2, and has the characteristics of simple structure, stable installation, good sealing performance, and easy disassembly.

[0066] The air curtain module 1 includes an air curtain pipe body 11 and an air outlet structure 12 arranged on the air curtain pipe body 11. An air curtain air outlet 1223 is arranged on the air outlet structure 12. The air outlet position and air outlet angle of the air curtain air outlet 1223 are adjustable. The air in the air curtain pipe body 11 forms an air curtain wall through the air curtain air outlet 1223 (as shown by the arrow lines in the figure). The air outlet position and air outlet angle of the air curtain air outlet 1223 are adjustable, and can be adjusted according to different structural sizes of the range hood 300, enhancing the adaptability of the air curtain and more accurately setting the smoke gathering range. The purification module 2 is detachably arranged on the air curtain pipe body 11. The purification module 2 includes a purification filter element 21 and a blower 22. The purification filter element 21 is used to purify the air, and the blower 22 is used to transport the air into the air curtain pipe body 11. The purification module 2 purifies the air before the air curtain air is blown out, and is simple to install and convenient to replace. Figure 2 The air curtain pipe body 11 can be U-shaped, which is convenient for surrounding the outer peripheral side of the cooking appliance 200. Two air outlet structures 12 are respectively arranged opposite to each other on the air curtain pipe body 11. The air curtain walls formed by the air curtain air outlets 1223 of the two air outlet structures 12 are respectively located on both sides of the range hood 300. At the same time, the two air curtain walls are also located on both sides of the cooking appliance 200, which can effectively prevent the escape of oil fume, improve the cleanliness of the indoor environment, and enhance the user experience.

[0067] Optionally, the air outlet structure 12 includes a moving frame 121 and an air outlet member 122. The moving frame 121 is arranged on the air curtain pipe body 11 with adjustable position. The moving frame 121 includes a receiving portion 1211. The inner cavity of the receiving portion 1211 is communicated with the inner cavity of the air curtain pipe body 11. An avoidance notch 1212 is opened on the receiving portion 1211. The air outlet member 122 includes a rotating portion 1221 and an air outlet portion 1222 arranged on the rotating portion 1221. The rotating portion 1221 is rotatably arranged in the receiving portion 1211. The inner cavity of the rotating portion 1221 is communicated with the inner cavity of the receiving portion 1211. The air outlet portion 1222 extends out of the avoidance notch 1212. The air curtain air outlet 1223 is arranged on the air outlet portion 1222, and the air curtain air outlet 1223 is communicated with the inner cavity of the rotating portion 1221.

[0068]

[0069] ​By adjusting the position of the moving frame 121 on the air curtain pipe body 11, the position of the air outlet member 122 is further adjusted. The position adjustment here can be horizontal position adjustment, so as to adjust the distance between the air curtain air outlet 1223 and the cooking appliance 200. The rotating part 1221 of the air outlet member 122 is rotationally matched with the accommodating part 1211 of the moving frame 121. On the one hand, it is convenient to adjust the angle of the air curtain air outlet 1223. On the other hand, it can ensure the sealing between the rotating part 1221 and the accommodating part 1211, and ensure that all the air in the air curtain pipe body 11 is blown out through the air curtain air outlet 1223 of the air outlet part 1222 to form an air curtain wall. The air outlet position and the air outlet angle of the air curtain air outlet 1223 are both adjustable, and can be adjusted for the range hood 300 with different structural dimensions, enhancing the adaptability of the air curtain and more accurately setting the smoke gathering range.

[0070] Optionally, the air outlet structure 12 further includes a flexible belt 123 and a plurality of rollers 124. The plurality of rollers 124 are respectively rotatably arranged in the air curtain pipe body 11. The flexible belt 123 is wound around the plurality of rollers 124, and the flexible belt 123 is connected to the accommodating part 1211. The plurality of rollers 124 tension and guide the flexible belt 123, so that the movement of the flexible belt 123 is stable, and the movement of the flexible belt 123 can drive the moving frame 121 to achieve position adjustment. In this embodiment, the flexible belt 123 is an unclosed square tube shape, and there is an avoidance space between the head and tail two-layer edges, which is convenient for air circulation. Since the air curtain pipe body 11 is square tubular, the number of rollers 124 is four, and the four rollers 124 are respectively located at the four corners of the air curtain pipe body 11 to achieve the tension of the flexible belt 123. An end cover 13 is arranged at the end of the air curtain pipe body 11, and a second through hole 131 is opened on the end cover 13. One end of the roller 124 is rotatably arranged in the second through hole 131. A support rib 114 is arranged inside the air curtain pipe body 11, and a fourth through hole 115 is arranged on the support rib 114. The other end of the roller 124 is rotatably arranged in the fourth through hole 115.

[0071] Optionally, the moving frame 121 further includes two connecting plates 1213 respectively arranged on both sides of the accommodating part 1211, and the flexible belt 123 is fixedly connected to the two connecting plates 1213 respectively. The connecting plate 1213 and the flexible belt 123 are connected by bolts, and the detachable connection method is convenient for subsequent maintenance. The connectable area between the connecting plate 1213 and the flexible belt 123 is large, which improves the stability of the movement transmission between the flexible belt 123 and the moving frame 121.

[0072] Optionally, the air outlet structure 12 further includes a driving gear 125. The driving gear 125 is rotatably arranged in the air curtain pipe body 11, and the driving gear 125 is used to drive the flexible belt 123 to slide around the roller 124. By driving the flexible belt 123 with the driving gear 125, the movement accuracy of the flexible belt 123 can be improved, and further the position adjustment accuracy of the moving frame 121 can be improved.

[0073] Optionally, the air outlet structure 12 further includes a transmission gear 126. The transmission gear 126 meshes with the driving gear 125. The transmission gear 126 is rotatably arranged in the air curtain tube body 11. A tooth portion 1231 is provided on the flexible belt 123, and the transmission gear 126 meshes with the tooth portion 1231. The number of transmission gears 126 can be one, which occupies less space. The number of transmission gears 126 can also be two or more, realizing the functions of reducing the rotational speed and increasing the output torque. The driving gear 125 and the transmission gear 126 can be respectively rotatably arranged on the end cover 13 of the air curtain tube body 11. Two corresponding third through holes 132 are provided on the end cover 13 for installing the rotating shafts of the driving gear 125 and the transmission gear 126 respectively.

[0074] Optionally, a gear shaft 1251 is provided on the driving gear 125. The gear shaft 1251 is in rotational cooperation with the air curtain tube body 11. A first knob 1252 is provided at the end of the gear shaft 1251 away from the driving gear 125, and the first knob 1252 is located outside the air curtain tube body 11. By operating the first knob 1252 by the user, the position of the moving frame 121 can be adjusted, and the operation is simple. The gear shaft 1251 penetrates through the third through hole 132 on the end cover 13 and is in rotational cooperation with the third through hole 132 through a bearing.

[0075] Optionally, a mounting shaft 1224 is provided on the rotating portion 1221. The mounting shaft 1224 is in rotational cooperation with the accommodating portion 1211. A second knob 1225 is provided at the end of the mounting shaft 1224 away from the rotating portion 1221, and the second knob 1225 is located outside the air curtain tube body 11. By operating the second knob 1225 by the user, the rotation angle of the rotating portion 1221 relative to the accommodating portion 1211 can be adjusted, and further the angle of the air curtain air outlet 1223 can be adjusted, and the operation is simple. The mounting shaft 1224 penetrates through the first through hole 1214 at the end of the accommodating portion 1211 and is in rotational cooperation with the first through hole 1214 through a bearing.

[0076] Optionally, the purification module 2 includes a base 23. An air duct air outlet 231 and a first mounting boss 232 are provided on the base 23. The first mounting boss 232 surrounds the periphery of the air duct air outlet 231. An air inlet 111 and a second mounting boss 112 are provided on the air curtain tube body 11. The air inlet 111 is communicated with the air duct air outlet 231. The second mounting boss 112 surrounds the periphery of the air inlet 111. The air purified by the purification module 2 enters the air curtain tube body 11 through the air duct air outlet 231 and the air inlet 111 of the air curtain tube body 11, and then forms an air curtain wall through the air curtain tube body 11, achieving the effect of isolating lampblack.

[0077] Optionally, a sealing protrusion 233 is provided on the outer peripheral side of the first mounting boss 232, and a sealing groove 113 that slidably cooperates with the sealing protrusion 233 is provided on the inner peripheral side of the second mounting boss 112; and / or, a sealing groove 113 is provided on the inner peripheral side of the first mounting boss 232, and a sealing protrusion 233 that slidably cooperates with the sealing groove 113 is provided on the outer peripheral side of the second mounting boss 112. Under the sealing action of the sealing protrusion 233 and the sealing groove 113, the purified air can be prevented from escaping, and the purified air inside the air curtain pipe body 11 can also be prevented from being polluted by external air. In this embodiment, the sealing protrusion 233 is provided on the outer peripheral side of the first mounting boss 232, and the sealing groove 113 is provided on the inner peripheral side of the second mounting boss 112.

[0078] Optionally, an elastic protrusion is provided on the sealing protrusion 233, and a limiting groove that cooperates with the elastic protrusion is provided on the groove wall of the sealing groove 113. When the purification module 2 is installed in place, the elastic protrusion just snaps into the limiting groove, which is convenient for the user to sense whether the purification module 2 is installed in place.

[0079] Optionally, both the sealing protrusion 233 and the sealing groove 113 are U-shaped. The U-shaped sealing protrusion 233 and the sealing groove 113 surround the air inlet 111, improving the sealing performance.

[0080] To further improve the sealing performance, optionally, the second mounting boss 112 includes a first boss 1121, a second boss 1122, and a third boss 1123 that are sequentially connected, and the first mounting boss 232 includes a fourth boss 2321, a fifth boss 2322, a sixth boss 2323, and a seventh boss 2324 that are sequentially connected. The fourth boss 2321 abuts against the first boss 1121, the fifth boss 2322 abuts against the second boss 1122, and the sixth boss 2323 abuts against the third boss 1123.

[0081] Optionally, the outer end faces of the first boss 1121 and the second boss 1122 are respectively flush with the outer side surface of the seventh boss 2324. The inner side surface of the seventh boss 2324 can block the port of the sealing groove 113, improving the sealing performance.

[0082] Optionally, the cross-sections of both the sealing protrusion 233 and the sealing groove 113 are rectangular, which is convenient for processing.

[0083] Optionally, the cross-sections of both the sealing protrusion 233 and the sealing groove 113 are arc-shaped, and the mating surfaces of the sealing protrusion 233 and the sealing groove 113 are arc surfaces, increasing the contact area and improving the sealing performance.

[0084] Optionally, the cross-sections of both the sealing protrusion 233 and the sealing groove 113 are trapezoidal, and the mating surfaces of the sealing protrusion 233 and the sealing groove 113 are inclined surfaces, increasing the contact area and improving the sealing performance.

[0085] Optionally, both the air outlet 231 and the air inlet 111 of the air duct are rectangular, which is convenient for processing.

[0086] Optionally, the air curtain device further includes a locking component 3 disposed on the air curtain pipe body 11. The purification module 2 includes a housing 24, and a jack 241 is provided on the housing 24. The locking component 3 includes a housing 31, a locking pin 32, a reset button 33, and a first elastic member 34. The locking pin 32 and the reset button 33 are respectively slidably disposed on the housing 31. The first elastic member 34 is clamped between the housing 31 and the locking pin 32. The locking pin 32 can extend into the jack 241 under the elastic force of the first elastic member 34. Pressing the reset button 33 can push the locking pin 32 to overcome the elastic force of the first elastic member 34 and disengage from the jack 241. Under the elastic force of the first elastic member 34, the locking pin 32 can be kept inserted into the jack 241, ensuring the stability of the purification module 2 during use. When it is necessary to disassemble the purification module 2, pressing the reset button 33 can push the locking pin 32 to overcome the elastic force of the first elastic member 34 and disengage from the jack 241, which is convenient and simple to operate. Through the cooperation of the locking pin 32, the reset button 33, and the first elastic member 34, the rapid locking and unlocking of the purification module 2 are realized, improving the disassembly and assembly efficiency of the purification module 2. The first elastic member 34 can be a spring, which is convenient to obtain materials and has a low cost.

[0087] Optionally, a driving groove 331 is provided on the reset button 33, and a driving block 321 slidably engaged with the driving groove 331 is provided on the locking pin 32. The sliding mating surface of the driving groove 331 and the driving block 321 is an inclined surface, and the sliding direction of the locking pin 32 is perpendicular to the sliding direction of the reset button 33. The driving groove 331 is opened at the bottom of the reset button 33, and the bottom of the driving groove 331 is inclined relative to the axis of the reset button 33, that is, an inclined surface for the cooperation of the driving groove 331 and the driving block 321 is formed. The longitudinal section of the driving block 321 can be a right trapezoid. One waist of the right trapezoid is connected to the locking pin 32, and the other waist is inclined relative to the axis of the locking pin 32, that is, an inclined surface for the cooperation of the driving block 321 and the driving groove 331 is formed. The end of the locking pin 32 away from the first elastic member 34 is a pin head 323, and a guiding structure such as a fillet or a chamfer is provided on the pin head 323 to facilitate smooth insertion into the jack 241 of the housing 24.

[0088] To facilitate the installation of the first elastic member 34, optionally, a guiding column 322 is provided on the locking pin 32, and the first elastic member 34 is sleeved on the guiding column 322.

[0089] Optionally, the locking component 3 further includes a second elastic member 35, and the second elastic member 35 is clamped between the housing 31 and the reset button 33. The second elastic member 35 can be a spring, which is convenient to obtain materials and has a low cost.

[0090] For the convenience of installing the second elastic member 35, optionally, a shoulder 332 is provided on the outer peripheral side of the reset button 33, and the second elastic member 35 is clamped between the housing 31 and the shoulder 332.

[0091] Optionally, the locking assembly 3 further includes a first guide plate 36 disposed in the housing 31, and the locking pin 32 is slidably engaged with the first guide plate 36. The cross-section of the first guide plate 36 can be semi-circular, and the semi-circular first guide plate 36 forms a part of the chute 38. An avoidance hole 311 is provided on the housing 31 for avoiding the locking pin 32, and the avoidance hole 311 can be a circular hole and is communicated with the chute 38.

[0092] Optionally, the locking assembly 3 further includes a second guide plate 37 disposed in the housing 31. The second guide plate 37 and the first guide plate 36 enclose to form a chute 38, the locking pin 32 is slidably disposed in the chute 38, and the first elastic member 34 is located in the chute 38. Two arc-shaped plates 371 are spaced apart at the bottom of the second guide plate 37, and the two arc-shaped plates 371 and the first guide plate 36 form a cylindrical chute 38. An avoidance groove 372 is formed on the second guide plate 37 for avoiding the driving block 321. At the same time, the avoidance groove 372 can limit the driving block 321 to move only in the vertical direction to prevent the locking pin 32 from rotating.

[0093] A guide groove 242 is further provided on the outer shell 24. The extending direction of the guide groove 242 is perpendicular to the extending direction of the locking pin 32. The jack 241 is opened at the end of the guide groove 242. When installing the purification module 2, the guide groove 242 can guide the locking pin 32. When the purification module 2 is installed in place, the locking pin 32 can be inserted into the jack 241. A plurality of air inlets 243 are respectively provided on both sides of the outer shell 24 to facilitate the introduction of external air into the purification module 2 for purification.

[0094] The air curtain device provided in this embodiment combines the air curtain module 1 and the purification module 2, and has the characteristics of simple structure, stable installation, good sealing performance, and easy disassembly. The purification module 2 ensures that the air curtain air is purified before being blown out, and is simple to install and convenient to replace. The air outlet position and the air outlet angle of the air curtain air outlet 1223 are adjustable, and can be adjusted according to different structural dimensions of the range hood 300, enhancing the adaptability of the air curtain and more accurately setting the smoke collection range. The air curtain device is an independent component and is placed around the cooker 200 on the cooking stove 100 without being integrated with the range hood 300, and can be used to improve the smoking oil effect of all range hoods on the market without affecting the installation and matching of the range hood 300 with the cabinet.

[0095] Note that the above is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments here, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments only. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An air curtain device, characterized in that, Comprising: An air curtain module (1), including an air curtain pipe body (11) and an air outlet structure (12) arranged on the air curtain pipe body (11). An air curtain air outlet (1223) is arranged on the air outlet structure (12). The air outlet position and air outlet angle of the air curtain air outlet (1223) are adjustable. The air in the air curtain pipe body (11) forms an air curtain wall through the air curtain air outlet (1223); A purification module (2), detachably arranged on the air curtain pipe body (11). The purification module (2) includes a purification filter element (21) and a fan (22). The purification filter element (21) is used for purifying air, and the fan (22) is used for conveying air into the air curtain pipe body (11); The air outlet structure (12) includes: A moving frame (121), arranged on the air curtain pipe body (11) with adjustable position. The moving frame (121) includes a receiving part (1211). The inner cavity of the receiving part (1211) is communicated with the inner cavity of the air curtain pipe body (11). An avoidance notch (1212) is formed on the receiving part (1211); An air outlet member (122), including a rotating part (1221) and an air outlet part (1222) arranged on the rotating part (1221). The rotating part (1221) is rotatably arranged in the receiving part (1211). The inner cavity of the rotating part (1221) is communicated with the inner cavity of the receiving part (1211). The air outlet part (1222) extends out of the avoidance notch (1212). The air curtain air outlet (1223) is arranged on the air outlet part (1222), and the air curtain air outlet (1223) is communicated with the inner cavity of the rotating part (1221); By horizontally adjusting the position of the moving frame (121) on the air curtain pipe body (11), the distance between the air curtain air outlet (1223) and the cooking appliance (200) can be adjusted. By adjusting the rotating part (1221), the angle of the air curtain air outlet (1223) can be adjusted, and thus the smoke gathering range of the air curtain wall can be adjusted for range hoods (300) with different structural dimensions.

2. The air curtain device according to claim 1, characterized in that The air outlet structure (12) further includes a flexible belt (123) and a plurality of rollers (124). The plurality of rollers (124) are respectively rotatably arranged in the air curtain pipe body (11). The flexible belt (123) is wound around the plurality of rollers (124), and the flexible belt (123) is connected to the receiving part (1211).

3. The air curtain device according to claim 2, characterized in that, The air outlet structure (12) further includes a driving gear (125). The driving gear (125) is rotatably arranged in the air curtain pipe body (11). The driving gear (125) is used for driving the flexible belt (123) to slide around the roller (124).

4. The air curtain device according to claim 3, characterized in that, The air outlet structure (12) further includes a transmission gear (126), the transmission gear (126) meshes with the driving gear (125), the transmission gear (126) is rotatably arranged in the air curtain tube body (11), a tooth portion (1231) is arranged on the flexible belt (123), and the transmission gear (126) meshes with the tooth portion (1231).

5. The air curtain device according to claim 3, characterized in that, A gear shaft (1251) is arranged on the driving gear (125), the gear shaft (1251) is rotationally matched with the air curtain tube body (11), a first knob (1252) is arranged at the end of the gear shaft (1251) away from the driving gear (125), and the first knob (1252) is located outside the air curtain tube body (11).

6. The air curtain device according to claim 1, characterized in that An installation shaft (1224) is arranged on the rotating part (1221), the installation shaft (1224) is rotationally matched with the accommodating part (1211), a second knob (1225) is arranged at the end of the installation shaft (1224) away from the rotating part (1221), and the second knob (1225) is located outside the air curtain tube body (11).

7. The air curtain device according to claim 1, wherein The purification module (2) includes a base (23), an air duct air outlet (231) and a first installation boss (232) are arranged on the base (23), and the first installation boss (232) surrounds the periphery of the air duct air outlet (231); an air inlet (111) and a second installation boss (112) are arranged on the air curtain tube body (11), the air inlet (111) is communicated with the air duct air outlet (231), and the second installation boss (112) surrounds the periphery of the air inlet (111).

8. The air curtain device according to claim 7, characterized in that, A sealing protrusion (233) is arranged on the outer peripheral side of the first installation boss (232), and a sealing groove (113) slidably matched with the sealing protrusion (233) is arranged on the inner peripheral side of the second installation boss (112); and / or, a sealing groove (113) is arranged on the inner peripheral side of the first installation boss (232), and a sealing protrusion (233) slidably matched with the sealing groove (113) is arranged on the outer peripheral side of the second installation boss (112).

9. The air curtain device according to claim 8, characterized in that An elastic protrusion is arranged on the sealing protrusion (233), and a limiting groove matched with the elastic protrusion is arranged on the groove wall of the sealing groove (113).

10. The air curtain device according to any one of claims 1-9, characterized in that, It further includes a locking component (3) arranged on the air curtain pipe body (11). The purification module (2) includes a housing (24), and a jack (241) is arranged on the housing (24). The locking component (3) includes a housing (31), a locking pin (32), a reset button (33) and a first elastic member (34). The locking pin (32) and the reset button (33) are respectively arranged on the housing (31) in a sliding manner. The first elastic member (34) is clamped between the housing (31) and the locking pin (32). The locking pin (32) can extend into the jack (241) under the elastic force of the first elastic member (34). Pressing the reset button (33) can push the locking pin (32) to overcome the elastic force of the first elastic member (34) and disengage from the jack (241).

11. The air curtain device according to claim 10, wherein A driving groove (331) is arranged on the reset button (33), and a driving block (321) which is in sliding fit with the driving groove (331) is arranged on the locking pin (32). The sliding fit surface of the driving groove (331) and the driving block (321) is an inclined surface, and the sliding direction of the locking pin (32) is perpendicular to the sliding direction of the reset button (33).

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