Smoke collecting mechanism

Abstract

The utility model belongs to the technical field of kitchen appliances, and particularly discloses a smoke collecting mechanism. The smoke collecting mechanism comprises a smoke hood and an air volume adjusting assembly. The smoke hood is provided with a smoke collecting cavity, an air inlet communicating with the smoke collecting cavity and an air outlet communicating with the smoke collecting cavity. The air volume adjusting assembly comprises an adjusting baffle, the first end of the adjusting baffle is arranged close to the air inlet, the second end of the adjusting baffle extends in the direction facing the air outlet, and the first end of the adjusting baffle is rotationally installed in the middle of the smoke hood in the left-right direction so that the smoke collecting cavity can be divided into two air inlet cavities with variable volumes in the left-right direction. The two air inlet cavities communicate with the air inlet and the air outlet, and a plurality of ventilation holes are formed in the adjusting baffle. The oil smoke pumping and discharging equipment comprises the smoke collecting mechanism. According to the smoke collecting mechanism, the air inlet amount of the two air inlet cavities can be adjusted through rotation of the adjusting baffle, the problem that the total air inlet amount becomes small can be avoided or relieved, and the pumping and exhausting performance of the smoke collecting mechanism and the oil smoke pumping and exhausting equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field especially, relate to a smoke collecting mechanism. BACKGROUND

[0002] With the improvement of people's living standards, oil fume extraction equipment has become a necessary kitchen appliance in people's home life, which can effectively purify kitchen air and improve user cooking experience.

[0003] The prior art provides an oil fume extraction equipment, which comprises a smoke collecting hood, a flow regulating plate and a driving device for driving the flow regulating plate to move. In the case of using a single-sided cooking bench, the driving device generally drives the flow regulating plate to move to the side of the unused cooking bench, thereby expanding the air volume on the side of the used cooking bench.

[0004] However, since the oil fume does not completely enter the smoke collecting hood from the side of the cooking bench, part of the oil fume may still overflow, and the side of the unused cooking bench is affected by the flow regulating plate, which increases the air inlet resistance of this part and weakens the oil fume extraction effect, and cannot effectively extract the overflowing oil fume. SUMMARY

[0005] One of the technical problems solved by the utility model is to provide a smoke collecting mechanism, which can effectively solve the problem of increased air resistance and reduced air inlet volume of the existing oil fume extraction equipment during single-sided extraction, and improve the oil fume extraction performance of the smoke collecting mechanism.

[0006] The above technical problem is solved by the following technical scheme:

[0007] A smoke collecting mechanism comprises:

[0008] A smoke hood has a smoke collecting cavity, an air inlet communicating with the smoke collecting cavity and an air outlet communicating with the smoke collecting cavity;

[0009] A flow regulating assembly comprises a regulating baffle, the first end of the regulating baffle is arranged close to the air inlet and the second end extends in the direction towards the air outlet, the first end of the regulating baffle is rotationally installed at the middle part of the smoke hood in the left-right direction to divide the smoke collecting cavity into two air inlet chambers with variable volumes in the left-right direction, both the air inlet chambers communicate with the air inlet and the air outlet, and the regulating baffle is provided with a plurality of ventilation holes.

[0010] The smoke collecting mechanism has the beneficial effects that: the adjusting baffle is arranged to be rotatable in the smoke collecting cavity, when a single-side cooking bench is used, the volume of the air inlet chamber corresponding to the used side cooking bench is increased and the volume of the air inlet chamber on the other side is reduced by rotating the adjusting baffle, so that the negative pressure generated by the fan operation is more concentrated on the air inlet opening corresponding to the used side cooking bench, the oil fume extraction performance when the single-side cooking bench is used is improved, the loss of air volume is reduced, the performance of the smoke collecting mechanism is improved, the demand for negative pressure is reduced while the oil fume extraction effect when the single-side cooking bench is used is ensured, so that the fan rotating speed is reduced and the energy consumption is reduced; meanwhile, the adjusting baffle is provided with a plurality of ventilation holes, when the second end of the adjusting baffle is rotated to be close to the left and right side cavity walls of the smoke collecting cavity, part of the smoke can flow to the air outlet through the small air inlet chamber and the ventilation holes, so that the problem that the wind resistance of the side of the unused cooking bench is increased due to air inlet of only the single-side air inlet chamber and the problem that the oil fume overflowed cannot be effectively sucked and exhausted are avoided, the smoothness of oil fume extraction is further ensured, and the smoke collecting performance of the smoke collecting mechanism is improved; furthermore, the plurality of ventilation holes are arranged on the adjusting baffle, the air inlet flow is ensured, the air inlet pressure acting on the adjusting baffle is reduced, the use reliability of the adjusting baffle is improved, the plurality of ventilation holes can also reduce the noise volume transmitted to the outside through the ventilation holes in the smoke collecting mechanism, the use experience of the smoke collecting mechanism is improved, and the plurality of ventilation holes also have the function of filtering oil fume.

[0011] In one of the embodiments, the area of the adjusting baffle is S0, the area of the plurality of ventilation holes on the smoke blocking plate part is S1, and 0.1S0≤S1≤0.4S0;

[0012] In one of the embodiments, the area of the ventilation hole is S2, and 2.5mm 2 ≤S2≤20mm 2 .

[0013] In one of the embodiments, the ventilation hole is arranged at the second end of the adjusting baffle; and / or the plurality of ventilation holes are arranged in an array.

[0014] In one of the embodiments, the smoke collecting cavity has two smoke blocking side cavity walls oppositely arranged in the left-right direction, the adjusting baffle has two side deflection positions at which the second end of the adjusting baffle is close to the two smoke blocking side cavity walls respectively, and the adjusting baffle is rotatable between the two side deflection positions.

[0015] When the adjusting baffle is at any one of the side deflection positions, the adjusting baffle is arranged at an angle relative to the vertical direction, and the second end of the adjusting baffle has a spacing d of 10mm≤d≤100mm with the smoke blocking side cavity wall on the corresponding side.

[0016] In one of the embodiments, the smoke blocking side cavity wall comprises a smoke guiding cavity wall, and the two smoke guiding cavity walls are close to each other in a direction away from the air inlet.

[0017] In one of the embodiments, when the adjusting baffle is in the side deflection position, the second end of the adjusting baffle is arranged opposite to one end of the smoke guiding cavity wall away from the air inlet.

[0018] In one of the embodiments, the smoke blocking side cavity wall further comprises a vertically arranged air outlet vertical cavity wall, which is connected between the smoke guiding cavity wall and the cavity wall of the smoke collecting cavity away from the air inlet.

[0019] In one of the embodiments, the adjusting baffle has a vertically arranged middle position, and when the adjusting baffle is in the middle position, the second end of the adjusting baffle is arranged opposite to the air outlet.

[0020] In one of the embodiments, the smoke collecting mechanism further comprises:

[0021] A mounting seat, the first end of the adjusting baffle is rotatably mounted on the mounting seat, and the mounting seat is detachably mounted in the smoke hood.

[0022] In one of the embodiments, the smoke collecting mechanism further comprises:

[0023] In one of the embodiments, the smoke collecting mechanism further comprises:

[0024] A hood body, the front side of which is provided with an air inlet and an opening, the opening and the air inlet are arranged in a vertical direction, and the downstream part of the smoke collecting cavity and the second end of the adjusting baffle correspond to the opening.

[0025] A smoke guiding plate, which is detachably mounted on the front side of the hood body and covers the opening.

[0026] In one of the embodiments, the hood body has a front plate part between the air inlet and the opening, the front plate part is provided with a maintenance opening, the maintenance opening is provided with an inspection plate which is detachably connected with the front plate part, the mounting seat is arranged opposite to the inspection plate, and the mounting seat is connected with the hood body and / or the inspection plate.

[0027] In one of the embodiments, the adjusting baffle can enter and exit the smoke collecting cavity through the opening. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A structure schematic diagram of the oil fume extraction equipment provided by the embodiments of the present application;

[0029] Figure 2The partial sectional view of the smoke collecting mechanism provided by the embodiment of the utility model when the adjusting baffle is in the middle position is provided;

[0030] Figure 3 The partial sectional view of the smoke collecting mechanism provided by the embodiment of the utility model when the adjusting baffle is in the left side position is provided;

[0031] Figure 4 The partial sectional view of the smoke collecting mechanism provided by the embodiment of the utility model when the adjusting baffle is in the right side position is provided;

[0032] Figure 5 The split structure schematic diagram of the air volume adjusting assembly provided by the embodiment of the utility model is provided;

[0033] Figure 6 The structure schematic diagram of the smoke collecting mechanism provided by the embodiment of the utility model after removing the smoke guide plate is provided.

[0034] Label explanation:

[0035] 100, smoke collecting mechanism;200, fan module;

[0036] 1, air volume adjusting assembly;11, adjusting baffle;111, smoke baffle part;1111, ventilation hole;112, rotating part;12, mounting seat;121, seat body;122, bottom plate;13, limiting assembly;131, position detection piece;14, driving motor;15, rotating bearing;

[0037] 2, smoke hood;21, cover body;211, smoke collecting cavity;2111, air inlet chamber;2111a, left air inlet chamber;2111b, right air inlet chamber;212, air inlet;213, air outlet;214, smoke blocking side cavity wall;2141, smoke guide cavity wall;2142, air outlet vertical cavity wall;2143, smoke inlet vertical cavity wall;215, open mouth;216, front plate part;22, smoke guide plate;23, maintenance plate. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0039] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] The terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0041] In the description of the present application, it needs to be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] The embodiment provides an oil fume extraction equipment, which can realize oil fume extraction, and adjust the air inlet volume of left and right air inlets according to the use of left and right cooking tables, thereby improving the oil fume extraction effect.

[0043] As shown in Figures 1 to 4 The oil fume extraction equipment includes a smoke collecting mechanism 100, a fan module 200 and a controller. The smoke collecting mechanism 100 has a smoke collecting cavity 211, an air inlet 212 communicating with the smoke collecting cavity 211 and an air outlet 213 communicating with the smoke collecting cavity 211; the fan module 200 is installed outside the smoke collecting mechanism 100 and includes a fan, the inlet of the fan communicates with the air outlet 213, and the operation of the fan can form a negative pressure at the air inlet 212, so that external oil fume can be discharged through the air inlet 212, the smoke collecting cavity 211, the air outlet 213 and the fan in sequence. The controller is in communication connection with the fan module 200 to control the operation of the fan.

[0044] Specifically, the smoke collecting mechanism 100 comprises a smoke hood 2 and an air volume adjusting assembly 1. The smoke hood 2 has a smoke collecting cavity 211, an air inlet 212 and an air outlet 213. The air volume adjusting assembly 1 is installed in the smoke collecting cavity 211 and comprises an adjusting baffle 11. The first end of the adjusting baffle 11 is close to the air inlet 212 and the second end extends towards the air outlet 213. The first end of the adjusting baffle 11 is rotationally installed on the smoke hood 2 and located at the middle of the smoke collecting cavity 211 in the left-right direction, so as to divide the smoke collecting cavity 211 into two air inlet chambers 2111 with variable volumes in the left-right direction. The two air inlet chambers 2111 are both communicated with the air inlet 212 and the air outlet 213. The second end of the adjusting baffle 11 is provided with a plurality of air vents 1111.

[0045] The smoke collecting mechanism 100 provided by the embodiment can increase the volume of the air inlet chamber 2111 corresponding to the used side of the cooking bench when the single-side cooking bench is used by rotating the adjusting baffle 11, so as to make the negative pressure generated by the fan more concentrated on the air inlet 212 corresponding to the used side of the cooking bench, improve the oil fume extraction performance when the single-side cooking bench is used, reduce the loss of air volume, improve the performance of the smoke collecting mechanism 100, and reduce the demand for negative pressure when the oil fume extraction effect of the single-side cooking bench is ensured, so as to reduce the fan speed and energy consumption. In addition, since the adjusting baffle 11 is provided with a plurality of air vents 1111, part of the smoke can flow to the air outlet 213 through the smaller air inlet chamber 2111 and the air vent 1111 when the second end of the adjusting baffle 11 is rotated to be close to the left-right side cavity wall of the smoke collecting cavity 211, so as to avoid the problem that the wind resistance of the side of the unused cooking bench increases due to the air inlet of the single-side air inlet chamber 2111, and the oil fume overflow cannot be effectively extracted, further ensure the smoothness of the oil fume extraction, and improve the smoke collecting performance of the smoke collecting mechanism 100. In addition, the plurality of air vents 1111 on the adjusting baffle 11 can ensure the air inlet flow while reducing the air inlet pressure acting on the adjusting baffle 11, so as to improve the use reliability of the adjusting baffle 11, and the plurality of air vents 1111 can also reduce the noise volume transmitted to the outside through the air vent 1111 in the smoke collecting mechanism 100, improve the use experience of the smoke collecting mechanism 100, and the plurality of air vents 1111 also have the function of filtering oil fume.

[0046] The smoke collecting mechanism 100 can be applied to the oil fume extraction equipment, can increase the oil fume extraction performance of the oil fume extraction equipment when the single-side cooking bench is used, reduce the wind energy and air volume loss, and improve the use performance of the oil fume extraction equipment.

[0047] In an embodiment, the oil fume extraction equipment is a range hood, and the fan module 200 is installed on the top of the smoke collecting mechanism 100. The lower side of the smoke collecting cavity 211 is provided with an air inlet 212, and the upper side is provided with an air outlet 213. The lower end of the adjusting baffle 11 is rotatably installed on the smoke hood 2, and the upper end is provided with a plurality of ventilation holes 1111.

[0048] In other embodiments, the oil fume extraction equipment is an integrated stove, and the smoke collecting mechanism 100 forms a smoke machine head of the integrated stove. The fan module 200 is installed below the smoke collecting mechanism 100. That is, the upper side of the smoke collecting cavity 211 is provided with an air inlet 212, and the lower side is provided with an air outlet 213. The upper end of the adjusting baffle 11 is rotatably installed on the smoke hood 2, and the lower end is provided with a ventilation hole 1111.

[0049] In an embodiment, the area of the smoke baffle part 111 is S0, and the area of the plurality of ventilation holes 1111 on the smoke baffle part 111 is S1, 0.1S0≤S1≤0.4S0. In this way, the ventilation area of the ventilation hole 1111 cannot be too large to cause excessive wind flow from the smaller side chamber, and the total ventilation area of the ventilation hole 1111 cannot be too small to cause a reduction in the total air inlet flow.

[0050] In an embodiment, the area of the ventilation hole 1111 is S2, 2.5mm 2 ≤S2≤20mm 2 . In this way, when the oil fume passes through the ventilation hole 1111 again, oil fume filtering can be ensured, and the filtered oil will not adhere to the ventilation hole 1111, affecting the air inlet capacity. At the same time, the area of the ventilation hole 1111 cannot be too large, and the internal part of the smoke collecting mechanism cannot easily transmit noise to the outside through the ventilation hole 1111.

[0051] In an embodiment, the ventilation hole 1111 is provided at the second end of the adjusting baffle 11 to ensure the ventilation effect and reduce the problem that the adjusting baffle 11 is easily bent and shaken due to the wind pressure acting on the second end of the adjusting baffle 11. In other embodiments, the ventilation hole 1111 can also be provided at the middle of the adjusting baffle 11 along the length direction thereof, or dispersedly provided at each place along the length direction of the adjusting baffle 11.

[0052] In an embodiment, the adjusting baffle 11 includes a rotating part 112 and a smoke baffle part 111 connected together. The first end of the smoke baffle part 111 is connected with the rotating part 112, the second end of the smoke baffle part 111 is provided with a ventilation hole 1111, and the rotating part 112 is rotatably installed on the smoke hood 2. The thickness direction of the smoke baffle part 111 is parallel to the smoke collecting cavity 211 to ensure the smoke blocking effect while avoiding interference between the adjusting baffle 11 and the smoke hood 2 during rotation.

[0053] The width of the smoke baffle part 111 is substantially equal to the thickness of the smoke collecting cavity 211, so that the front and back sides of the smoke baffle part 111 have a small gap with the front and back cavity walls of the smoke collecting cavity 211, thereby reducing the probability of smoke flowing to the air outlet 213 through the gap. The thickness of the smoke collecting cavity 211 is t0, and the thickness of the smoke baffle part 111 is t1, 0.8t0

[0054] In an embodiment, the ventilation holes 1111 are arranged in multiple rows along the length direction of the smoke baffle part 111, and each row includes multiple ventilation holes 1111 arranged in the width direction, i.e., the ventilation holes 1111 are arranged in an array. This facilitates the machining of the ventilation holes 1111 on the adjustment baffle 11, and can reduce the size of a single ventilation hole 1111 while ensuring a certain ventilation volume, thereby facilitating the control of the air volume passing through the adjustment baffle 11. The ventilation holes 1111 can be, but are not limited to, circular, rectangular, or other shapes.

[0055] The smoke collecting cavity 211 has two smoke blocking cavity walls 214 arranged opposite in the left-right direction, and the adjustment baffle 11 has two side deflection positions with the second end of the adjustment baffle 11 close to the two smoke blocking cavity walls 214, respectively. The adjustment baffle 11 rotates between the two side deflection positions.

[0056] The adjustment baffle 11 is in the left side deflection position when the second end of the adjustment baffle 11 is close to the left side cavity wall of the smoke collecting cavity 211, and is in the right side deflection position when the second end of the adjustment baffle 11 is close to the right side cavity wall of the smoke collecting cavity 211. The adjustment baffle 11 rotates between the left side deflection position and the right side deflection position. The air inlet chamber 2111 between the left side cavity wall and the adjustment baffle 11 is the left air inlet chamber 2111a, and the air inlet chamber 2111 between the right side cavity wall and the adjustment baffle 11 is the right air inlet chamber 2111b.

[0057] The adjustment baffle 11 also has a vertically arranged middle position. When the adjustment baffle 11 is in the middle position, the two air inlet chambers 2111 are arranged symmetrically left and right relative to the adjustment baffle 11, so as to ensure that the air inlet flow rates of the two air inlet chambers 2111 are the same. In an embodiment, when the adjustment baffle 11 is in the middle position, the second end of the adjustment baffle 11 is arranged opposite to the air outlet 213, so as to ensure the smoothness of the smoke flow and better separate the air inlets on both sides. Specifically, the second end of the adjustment baffle 11 is opposite to the middle part of the air outlet 213 along the length direction.

[0058] When both sides of the cooking range are used, the baffle 11 is adjusted to the middle position, so that the negative pressure of the air inlet 212 corresponding to the left and right air inlet chambers 2111 is substantially the same, ensuring the exhaust performance of the left and right cooking ranges; when the left cooking range is used, the baffle 11 is adjusted to the right side position, so that the volume of the left air inlet chamber 2111a is greater than that of the right air inlet chamber 2111b, and the negative pressure generated by the fan is mainly concentrated at the air inlet 212 corresponding to the left air inlet chamber 2111a; when the right cooking range is used, the baffle 11 is adjusted to the left side position, so that the volume of the right air inlet chamber 2111b is greater than that of the left air inlet chamber 2111a, and the negative pressure generated by the fan is mainly concentrated at the air inlet 212 corresponding to the right air inlet chamber 2111b.

[0059] It can be understood that when both sides of the cooking range are used, the baffle 11 can be rotated to a position between the middle position and the side position according to the oil fume generation of the left and right cooking ranges, so that the air volume of the left and right air inlet chambers 2111 is adapted to the different oil fume generation of the left and right cooking ranges, and the performance of oil fume extraction is better ensured.

[0060] In an embodiment, when the baffle 11 is in the side position, the second end of the baffle 11 has a spacing d with the smoke blocking side cavity wall 214, 10mm≤d≤100mm, so that part of the flue gas can flow to the air outlet 213 through the gap between the baffle 11 and the smoke blocking side cavity wall 214, further reducing the influence of the baffle 11 on the overall air volume of the fan, ensuring smooth extraction, and also avoiding the baffle 11 from being affected by the wind pressure and causing slight vibration with the smoke blocking side cavity wall 214. Preferably, d≤50mm.

[0061] In an embodiment, the smoke blocking side cavity wall 214 includes a smoke guiding cavity wall 2141, and the smoke guiding cavity walls 2141 of the left and right smoke blocking side cavity walls 214 are oppositely arranged and relatively close from the air inlet 212 to the air outlet 213, thereby guiding the flue gas entering the air inlet chamber 2111 from the air inlet 212 to flow more smoothly to the air outlet 213, improving the smoothness of the flue gas flowing in the smoke collecting cavity 211 and improving the flue gas gathering effect. Further, the included angle of the smoke guiding cavity wall 2141 with the vertical direction is less than or equal to 30°, so as to avoid that the smoke guiding cavity wall 2141 has too large inclination angle and affects the overall volume of the smoke collecting cavity 211.

[0062] The smoke blocking side cavity wall 214 further includes a vertically arranged air outlet vertical cavity wall 2142 connected between the smoke guiding cavity wall 2141 and the end cavity wall of the smoke collecting cavity 211 away from the air inlet 212. The air outlet vertical cavity wall 2142 is arranged to facilitate the processing of the smoke collecting cavity 211 and ensure the width of the air outlet end of the smoke collecting cavity 211, thereby reducing the probability of interference between the baffle 11 and the smoke blocking side cavity wall 214 during rotation.

[0063] The smoke-blocking side cavity wall 214 also includes a vertical smoke inlet cavity wall 2143 connected to the side of the smoke guide cavity wall 2141 near the air inlet 212. The vertical smoke inlet cavity wall 2143 forms the opposite side walls of the air inlet 212, so as to increase the width of the air inlet 212 and ensure the effect of fume extraction.

[0064] In other embodiments, the end of the smoke-blocking side cavity wall 214 away from the air inlet 212 may also extend to the air outlet 213, that is, the air outlet ends of the two smoke-blocking side cavity walls 214 are located on opposite sides of the air outlet 213, and form opposite side walls of the air outlet 213.

[0065] In one embodiment, when the adjusting baffle 11 is in the lateral position, the second end of the adjusting baffle 11 is set at the end of the smoke-blocking side cavity wall 214 away from the air inlet 212, thereby facilitating the flow of flue gas to the ventilation hole 1111 of the adjusting baffle 11 through the smoke-blocking side cavity wall 214, ensuring the smooth flow of flue gas.

[0066] like Figures 4 to 6 As shown, to improve the ease of installation of the adjusting baffle 11 inside the fume hood 2, in one embodiment, a mounting base 12 is installed at one end of the fume hood 2 near the air inlet 212, and the first end of the adjusting baffle 11 is rotatably mounted on the mounting base 12. The mounting base 12 is preferably detachably connected to the adjusting baffle 11, thereby facilitating the overall disassembly and assembly of the airflow regulating component 1 inside the fume hood 2 and improving the convenience of disassembly, maintenance, and replacement of the airflow regulating component 1.

[0067] In one embodiment, the airflow regulating component 1 further includes a drive motor 14, which drives the regulating baffle 11 to rotate, thereby enabling automated control of the regulating baffle 11. The drive motor 14 is communicatively connected to the controller of the fume extraction device, meaning the controller can control the operation of the regulating baffle 11 according to the flue gas status or the usage status of the gas stove, improving the reliability of the smoke collection mechanism 100.

[0068] In other embodiments, the first end of the adjusting baffle 11 is connected to an operating handle, one end of which extends outside the fume hood 2. The user can manually adjust the position of the adjusting baffle 11 through the operating handle, thereby reducing costs.

[0069] To prevent the adjusting baffle 11 from rotating beyond the lateral position, in one embodiment, the smoke collection mechanism 100 further includes a limiting component 13. The limiting component 13 restricts the adjusting baffle 11 from continuing to rotate in a direction away from the center position after reaching the lateral position, thereby limiting the adjusting baffle 11 to the lateral position and ensuring the reliability of the air volume regulating component 1.

[0070] In an embodiment, the limiting assembly 13 comprises two position detection members 131 corresponding to the two side deflection positions respectively, and the position detection members 131 are in communication connection with the controller of the oil fume extraction equipment. When the adjusting baffle 11 is rotated to a side deflection position, the corresponding position detection member 131 is triggered and sends a signal to the controller, and the controller controls the driving motor 14 to stop running after receiving the signal. The position detection member 131 can be but is not limited to a micro sensor, a light sensor or other sensors capable of realizing position detection.

[0071] In other embodiments, the limiting assembly 13 can also adopt a pure mechanical structure, that is, the limiting assembly 13 comprises stop blocks corresponding to the two side deflection positions, and when the adjusting baffle 11 is rotated to a side deflection position, the adjusting baffle 11 abuts against the stop block to limit the continuous rotation of the adjusting baffle 11.

[0072] In an embodiment, the limiting assembly 13 is arranged on the mounting seat 12, that is, the limiting assembly 13 cooperates with the rotating part 112 to realize limiting, thereby making the air volume adjusting assembly 1 form a module that can be disassembled and assembled as a whole, and improving the assembly and disassembly convenience of the air volume adjusting assembly 1. In other embodiments, the limiting assembly 13 can also be mounted on the cover body 21.

[0073] In an embodiment, the smoke cover 2 comprises the cover body 21 and the smoke guide plate 22, the inside of the cover body 21 has a smoke collecting cavity 211, and the front lower part of the cover body 21 is provided with an air inlet 212 in communication with the smoke collecting cavity 211. The smoke guide plate 22 is arranged on the front side of the cover body 21 and located above the air inlet 212.

[0074] Further, the front side of the cover body 21 is provided with an opening 215, the opening 215 and the air inlet 212 are arranged in a vertical direction, the smoke guide plate 22 covers the opening 215, and the downstream part of the smoke collecting cavity 211 and the second end of the adjusting baffle 11 are arranged corresponding to the opening 215. Thus, after the smoke guide plate 22 is disassembled, the upper part of the smoke collecting cavity 211 and the second end of the adjusting baffle 11 are exposed through the opening 215, which is beneficial to realize the cleaning of the smoke collecting cavity 211 and the adjusting baffle 11; the opening 215 and the air inlet 212 are arranged in a vertical direction, thereby making the front side of the cover body 21 have a front plate part 216 between the opening 215 and the air inlet, and the front plate part 216 is beneficial to improve the installation convenience and stability of the smoke guide plate 22 on the cover body 21.

[0075] In an embodiment, the front plate part 216 is provided with a maintenance opening, and the maintenance opening is provided with an inspection plate 23 detachably connected with the front plate part 216, the mounting seat 12 is arranged opposite to the inspection plate 23, and the mounting seat 12 is connected with the cover body 21 and / or the inspection plate 23. Through the disassembly of the inspection plate 23, the air volume adjusting assembly 1 can be disassembled and maintained, thereby improving the disassembly and maintenance convenience of the air volume adjusting assembly 1.

[0076] In an embodiment, the rear side of the mounting base 12 is connected with the cover 21, the driving motor 14 is mounted inside the mounting base 12 and the output shaft is connected with the rotating shaft which extends out of the front side of the mounting base 12, and the rotating part 112 is fixedly sleeved on the rotating shaft; the inner side of the maintenance cover is mounted with the rotating bearing 15 which is sleeved on the rotating shaft, so that the front and rear sides of the air volume adjusting assembly 1 are reliably fixed and the rotating smoothness of the adjusting plate can be ensured.

[0077] In order to improve the dismounting convenience of the driving motor 14, the mounting base 12 comprises a bottom plate 122 and a base body 121 which are detachably connected, the bottom plate 122 and the base body 121 jointly form a mounting space, the bottom plate 122 is detachably connected with the rear side cavity wall of the smoke collecting cavity 211, the rotating shaft extends out of the front side of the base body 121, and the rotating bearing 15 is mounted on the front side of the base body 121.

[0078] In an embodiment, the air volume adjusting assembly 1 can enter and exit the smoke collecting cavity 211 through the opening 215, so that when the air volume adjusting assembly 1 is separated from the smoke hood 2, the position of the air volume adjusting assembly 1 can be adjusted so that the air volume adjusting assembly 1 can be dismounted as a whole from the opening 215. That is, the length of the opening 215 in the left-right direction is greater than the overall length of the air volume adjusting assembly 1.

[0079] In the specific contents of the above specific embodiments, any non-contradictory combination of technical features can be made, and in order to make the description simple, all possible combinations of the above technical features are not described, however, as long as the combination of the technical features does not exist, it should be considered as the scope of the description.

[0080] The specific contents of the above specific embodiments only express several embodiments of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the utility model. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A smoke collecting mechanism, characterized by, The smoke hood (2) has a smoke collecting cavity (211), an air inlet (212) communicating with the smoke collecting cavity (211), and an air outlet (213) communicating with the smoke collecting cavity (211). The first end of the adjusting baffle (11) is arranged near the air inlet (212) and the second end extends in the direction towards the air outlet (213). The first end of the adjusting baffle (11) is rotatably installed in the middle of the smoke hood (2) in the left-right direction to divide the smoke collecting cavity (211) into two air inlet chambers (2111) with variable volumes in the left-right direction. Both of the two air inlet chambers (2111) communicate with the air inlet (212) and the air outlet (213). The adjusting baffle (11) is provided with a plurality of ventilation holes (1111). The area of the adjusting baffle (11) is S0, and the area of the plurality of ventilation holes (1111) on the adjusting baffle (11) is S1, 0.1S0≤S1≤0.4S0.

2. The smoke extraction mechanism of claim 1, wherein, The ventilation holes (1111) are arranged at the second end of the adjusting baffle (11), and / or the plurality of ventilation holes (1111) are arranged in an array. and / or the area of the vent hole (1111) is S2, 2.5mm 2 ≤ S2 ≤ 20mm 2 .

3. The smoke-gathering mechanism of claim 1, wherein, The smoke collecting cavity (211) has two smoke blocking side cavity walls (214) arranged opposite to each other in the left-right direction. The adjusting baffle (11) has two side deflection positions where the second end of the adjusting baffle (11) is close to the two smoke blocking side cavity walls (214) respectively. The adjusting baffle (11) rotates between the two side deflection positions.

4. The smoke extraction mechanism of claim 1, wherein, When the adjusting baffle (11) is at any one of the side deflection positions, the second end of the adjusting baffle (11) has a spacing d with the corresponding side smoke blocking side cavity wall (214), 10mm≤d≤100mm. The smoke blocking side cavity wall (214) includes a smoke guiding cavity wall (2141). The smoke guiding cavity walls (2141) on both sides are close to each other in the direction away from the air inlet (212).

5. The smoke extraction mechanism of claim 4, wherein, When the adjusting baffle (11) is at the side deflection position, the second end of the adjusting baffle (11) is arranged opposite to one end of the smoke guiding cavity wall (2141) away from the air inlet (212).

6. The smoke extraction mechanism of claim 5, wherein, The smoke blocking side cavity wall (214) further includes a vertically arranged air outlet vertical cavity wall (2142) connected between the smoke guiding cavity wall (2141) and the end cavity wall of the smoke collecting cavity (211) away from the air inlet (212). The adjusting baffle (11) has a vertically arranged middle position. When the adjusting baffle (11) is at the middle position, the second end of the adjusting baffle (11) is arranged opposite to the air outlet (213).

7. The smoke extraction mechanism of claim 1, wherein, The smoke collecting mechanism further includes:

8. The smoke extraction mechanism according to any one of claims 1 to 7, characterized in that A mounting seat (12) on which the first end of the adjusting baffle (11) is rotatably installed. The mounting seat (12) is detachably installed in the smoke hood (2). And / or a driving motor (14) installed in the smoke hood (2) and connected with the first end of the adjusting baffle (11). The driving motor (14) drives the adjusting baffle (11) to rotate. ​ 9. The smoke extraction mechanism of claim 8, wherein, The smoke hood (2) comprises: a hood body (21) with an air inlet (212) and an opening (215) formed on the front side, the opening (215) and the air inlet (212) being arranged in a vertical direction, a downstream portion of the smoke collecting cavity (211) and a second end of the adjusting baffle (11) corresponding to the opening (215); a smoke guide plate (22) detachably mounted on the front side of the hood body (21) and covering the opening (215).

10. The smoke extraction mechanism of claim 9, wherein, The hood body (21) has a front plate portion (216) between the air inlet (212) and the opening (215), a maintenance opening is formed on the front plate portion (216), a maintenance plate (23) detachably connected with the front plate portion (216) is arranged at the maintenance opening, the mounting seat (12) is arranged opposite to the maintenance plate (23), and the mounting seat (12) is connected with the hood body (21) and / or the maintenance plate (23); and / or, the adjusting baffle (11) can enter and exit the smoke collecting cavity (211) through the opening (215).

Images