CN111380092A - Side-draft range hood and gap adjusting method thereof - Google Patents

Side-draft range hood and gap adjusting method thereof Download PDF

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Publication number
CN111380092A
CN111380092A CN201811623050.XA CN201811623050A CN111380092A CN 111380092 A CN111380092 A CN 111380092A CN 201811623050 A CN201811623050 A CN 201811623050A CN 111380092 A CN111380092 A CN 111380092A
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China
Prior art keywords
panel
gap
range hood
plate
smoke baffle
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CN201811623050.XA
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CN111380092B (en
Inventor
陈旭斌
翁建松
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes
    • F24C15/2021Arrangement or mounting of control or safety systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes
    • F24C15/2078Removing cooking fumes movable
    • F24C15/2085Removing cooking fumes movable adjustable in height

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

The invention discloses a side-draft range hood, which comprises a shell and a panel component arranged on the front side of the shell, wherein the panel component comprises a panel and a smoke baffle plate arranged on the panel, and is characterized in that: the panel comprises a first fixing part and a second fixing part, wherein the first fixing part is arranged at the top and is bent backwards, the second fixing part is arranged at the bottom and is bent backwards, and the first fixing part and the second fixing part are respectively connected and fixed with the shell. Also discloses a clearance adjusting method of the side draft range hood. Compared with the prior art, the invention has the advantages that: the top and the bottom of the panel are respectively bent to form fixing parts fixed with the shell, so that the gap at the upper and lower connecting positions of the panel assembly and the shell can be effectively controlled; through the left and right sides at the panel set up with the left side board of casing and right side board complex thread slipping and bubble cotton strip, the clearance of the hookup location department about can effectively control panel assembly and casing.

Description

Side-draft range hood and gap adjusting method thereof
Technical Field
The invention relates to oil fume purification equipment, in particular to a side-draft range hood and a clearance adjusting method of the range hood.
Background
The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood of the top suction type utilizes the principle that hot gas rises to suck and discharge the naturally rising oil smoke generated during cooking; the side-draft range hood utilizes the vortex wind pressure principle to absorb most of the oil smoke close to the cooking bench in an arc form, so that the adverse effect on the health of a human body can be reduced, and the suction effect of a power source cannot be reduced basically because the power source is close to the cooking bench.
The existing side-draft range hood, as disclosed in chinese patent with application number 201120123471.3, includes a box body and an air deflector for blocking/opening an air inlet of the box body, an air stay is arranged between the air deflector and the box body, the box body includes a panel, the panel is provided with an air inlet, an inner cover is arranged at the air inlet, the inner cover is bonded and fixed with the panel through silica gel, and the air stay is hinged with the inner cover. Also, for example, the chinese patent with application No. 201220467989.3 discloses a range hood with a movable panel device, which includes a housing, an air inlet located at the front of the housing, and a movable panel device, wherein the movable panel device includes a movable panel and a hinge hinged with the upper part of the housing, and the movable panel is opened and closed relative to the air inlet by using the hinge as a rotating shaft.
In the existing range hoods, the panel glass and the smoke baffle are adhered to the bracket by glue, and the movement mechanism is usually arranged on a side plate or a top rear plate and other box body components. The structure is only dependent on viscose glue, and the side gaps of the panel and the smoke baffle plate are larger due to the accumulation of size chains, so that the control effect on the gaps between the panel and the shell and the gaps between the panel and the smoke baffle plate is poor, and the requirements on assembly and size are higher; in addition, the moving mechanism is exposed in the oil path, so that the panel cannot be opened after the moving mechanism fails, and the appearance is not fine.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a side-draft range hood, which can effectively control the gap between the housing and the panel and ensure the installation strength, in order to solve the problems existing in the prior art.
The second technical problem to be solved by the present invention is to provide a clearance adjustment method for the above range hood.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a side-draught range hood, includes the casing and sets up the panel components in the casing front side, the panel components includes the panel and sets up the cigarette board that keeps off on the panel, its characterized in that: the panel comprises a first fixing part and a second fixing part, wherein the first fixing part is arranged at the top and is bent backwards, the second fixing part is arranged at the bottom and is bent backwards, and the first fixing part and the second fixing part are respectively connected and fixed with the shell.
The casing includes left side board, right side board and sets up the top back plate between left side board and right side board, the preceding terminal surface of left side board and right side board all from top to bottom inclines gradually backward, the panel sets up the front side at the casing aslope, the inclination of panel is unanimous with the inclination of terminal surface before left side board, the right side board.
Both fixing portions are extended downward gradually from the front to the rear so as to be fixed to the top front side and the bottom of the top rear plate of the housing.
The panel includes panel support and sets up the panel glass at panel support leading flank, the trailing flank that panel glass extends the position of panel support is provided with and has elastic bubble cotton sliver, the left and right sides of panel support is provided with respectively compresses tightly left side board and bubble cotton sliver, with the smooth knot that right side board and bubble cotton sliver compressed tightly.
The lower end of each sliding buckle is provided with a bending part bent towards the direction far away from the panel, a first mounting hole is formed in the corresponding position of the sliding buckle on the panel support, the left side plate and the right side plate are respectively matched with the panel at the part of the panel glass extending out of the panel support and the panel, the structures assembled with the sliding buckle on the left side plate and the right side plate respectively comprise a front mounting plate which can be attached to a foam cotton strip of the panel, the front mounting plate is bent backwards at the position adjacent to the side face of the panel support to form a side mounting plate, a second mounting hole is formed in the position on the front mounting plate corresponding to the sliding buckle, a third mounting hole is formed in the position on the side mounting plate corresponding to the second mounting hole, the third mounting hole is communicated with the second mounting hole to enable the bending part of the sliding buckle to pass through, and the bottom of the third mounting hole is lower than the second mounting hole.
The front side edge of the third mounting hole, which is lower than the second mounting hole, is gradually inclined backwards from top to bottom.
The panel is provided with an air inlet, the smoke baffle is arranged at the air inlet, and the left side and the right side of the smoke baffle are respectively connected with the rear side of the panel through a movement mechanism.
And a gap adjusting mechanism is respectively arranged between each motion mechanism and the rear side of the panel, the gap adjusting mechanism comprises a base capable of moving up and down and moving left and right, and the motion mechanisms are connected with the base.
The gap adjusting mechanism further comprises a first lead screw extending longitudinally, a first motor used for driving the first lead screw to rotate, a nut guide block arranged on the periphery of the first lead screw, a second lead screw which is driven by the nut guide block to move up and down and extends transversely, and a second motor used for driving the second lead screw to rotate, wherein the second lead screw penetrates through the base and is in threaded connection with the base.
The clearance adjustment mechanism further comprises a support assembly, an optical axis and a guide block arranged on the periphery of the optical axis, the support assembly comprises four supports, the supports are fixed on the panel respectively, every two supports are arranged at intervals from top to bottom and are arranged at intervals from left to right with the other two supports respectively, two ends of the optical axis are fixed with the supports arranged from top to bottom respectively, two ends of the first lead screw are connected with the supports arranged from top to bottom respectively, and two ends of the second lead screw are connected with the nut guide block and the guide block respectively in a rotating mode.
The panel is provided with a laser distance sensor for detecting a gap between the smoke baffle and the edge of the air inlet of the panel.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the clearance adjusting method of the side draft range hood is characterized in that: the method comprises the following steps:
1) starting an adjusting program, and determining a gap uniform deviation allowable value t0, a gap maximum allowable value M0 and an adjusting degree n;
2) detecting a first gap distance X1 in the horizontal direction and a second gap distance Y1 in the vertical direction between the left side of the current smoke baffle and the edge of an air inlet of the panel; detecting a third gap distance X2 in the horizontal direction and a fourth gap distance Y2 in the vertical direction between the right side of the current smoke baffle and the edge of the air inlet of the panel;
3) respectively calculating t1 ═ Y1-Y2, and t2 ═ X1-X2;
4) judging the relationship between | t1| and t 0:
4.1) if | t1| > t0, then judging the relationship between Y1 and Y2:
4.1.1) if Y1> Y2, the right gap adjusting mechanism is actuated, so that the right base moves downwards, the right moving mechanism drives the right side of the smoke baffle to move downwards, the moving stroke Z is Y1-Y2, a parameter m is set to be Y1, and the process goes to step 5);
4.1.2) if Y1 is not more than Y2, the left gap adjusting mechanism is actuated to move the left base downwards, so that the left motion mechanism drives the left side of the smoke baffle plate to move downwards, the moving stroke Z is Y1-Y2, a parameter m is set to be Y1, and the process goes to step 5);
4.2) if | t1| ≦ t0, setting a parameter m ═ Max (Y1, Y2), and entering step 5);
5) judging the relationship between M and M0:
5.1) if M is greater than M0, the left gap adjusting mechanism acts to move the left base upwards, so that the left motion mechanism drives the left side of the smoke baffle to move upwards, the moving stroke Z is M-M0+ n, and then the step 6 is carried out;
5.2) if M is less than or equal to M0, entering the step 6);
6) judging the relationship between | t2| and t 0:
6.1) if | t2| > t0, then judging the relationship between X1 and X2:
6.1.1) if X1> X2, both the right gap adjustment mechanism and the left gap adjustment mechanism act, so that both the bases on both sides move leftwards, and the motion mechanism drives the smoke baffle to move leftwards, wherein the moving stroke Z is (X1-X2)/2, and then the process goes to step 7);
6.1.2) if the X1 is not more than X2, the right gap adjusting mechanism and the left gap adjusting mechanism both act to enable the bases on both sides to move rightwards, so that the motion mechanism drives the smoke baffle to move rightwards, the moving stroke Z is (X1-X2)/2, and then the process enters the step 7);
6.2) if | t2| ≦ t0, then go to step 7);
7) detecting a first gap distance X1 in the horizontal direction and a second gap distance Y1 in the vertical direction between the left side of the current smoke baffle and the edge of an air inlet of the panel; detecting a third gap distance X2 in the horizontal direction and a fourth gap distance Y2 in the vertical direction between the right side of the current smoke baffle and the edge of the air inlet of the panel;
8) obtaining the difference of the gap | Y1-Y2| on the upper side, the maximum gap Max (Y1, Y2) on the upper side and the difference | X1-X2| of the left gap and the right gap;
9) and judging whether the gap value of the step 8) is accepted, if so, finishing the adjusting program, and if not, returning to the step 1).
Compared with the prior art, the invention has the advantages that: the top and the bottom of the panel are respectively bent to form fixing parts fixed with the shell, so that the gap at the upper and lower connecting positions of the panel assembly and the shell can be effectively controlled; the left side and the right side of the panel are provided with the slide fastener and the foam strips which are matched with the left side plate and the right side plate of the shell, so that the gap between the panel assembly and the left and right connecting positions of the shell can be effectively controlled; the movement mechanism of the smoke baffle is connected to the panel, so that the size chain can be reduced, and the gap between the smoke baffle and the panel can be well ensured; through set up clearance adjustment mechanism between panel and motion, can also adjust the clearance between cigarette board and the panel according to actual demand, reduce the required precision of manufacturing, assembly.
Drawings
FIG. 1 is a schematic view of a range hood according to an embodiment of the present invention;
FIG. 2 is a schematic view of a range hood according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a range hood in accordance with an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion I of FIG. 3;
FIG. 5 is a schematic view of a left side plate of the range hood according to the embodiment of the present invention;
FIG. 6 is a schematic view of a slide fastener of the range hood according to the embodiment of the present invention;
FIG. 7 is a schematic view of a panel assembly of a range hood according to an embodiment of the present invention;
fig. 8 is a schematic view of a gap adjusting mechanism of the range hood according to the embodiment of the present invention;
fig. 9 is a schematic view of the hidden protective cover of the panel assembly of the range hood according to the embodiment of the invention;
fig. 10 is a front view of a panel assembly of a range hood according to an embodiment of the present invention;
fig. 11 is a flowchart of a clearance adjustment method of a range hood according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Referring to fig. 1 to 10, a side-draft range hood includes a housing 1 and a panel assembly 2 disposed at the front side of the housing 1. For convenience of description, the terms "front", "rear", "left" and "right" in this specification refer to the direction of the user of the range hood relative to the user.
Casing 1 includes left side board 11, right side board 12 and sets up the top backplate 13 between left side board 11 and right side board 12, and the preceding terminal surface of left side board 11 and right side board 12 all from top to bottom inclines gradually backward, and in this embodiment, left side board 11 and right side board 12 are triangle-shaped.
The panel assembly 2 includes a panel 21 and a smoke barrier 22 disposed on the panel 21. The panel 21 is fixedly connected to the housing 1, and is disposed at the front side of the housing 1 to be inclined with respect to the vertical direction at an angle corresponding to the angle of inclination of the front end surfaces of the left and right side plates 11, 12. The panel 21 is provided with an air inlet 211, and the smoke barrier 22 is disposed at the air inlet 211.
The panel 21 includes a panel bracket 212 and a panel glass 213, and the panel glass 213 is adhered to a front side of the panel bracket 212. The top of the panel bracket 213 is provided with a first fixing portion 214 bent toward a direction (rearward) away from the panel glass 213, the bottom of the panel bracket 213 is provided with a second fixing portion 215 bent toward a direction away from the panel glass 213, and both fixing portions are downwardly inclined and extended rearward by the panel bracket 213 to be fixed to the top front side and the bottom of the top rear plate 13 of the housing 1. The two fixing portions and the top back plate 13 can be fixed by screws, respectively, so that the upper and lower gaps between the housing 1 and the panel assembly 2 can be effectively controlled.
Two sliders 216 arranged at intervals up and down are respectively arranged on each of the left side and the right side of the panel bracket 212, and each slider 216 is respectively fixed on the panel bracket 212 through a rivet, so that the strength of the connecting part can be improved. The left and right sides of the panel glass 213 extend out of the panel bracket 212, and the rear side of the position where the panel glass 213 extends out of the panel bracket 212 is provided with an elastic tampon 217.
The lower end of the slider 216 has a bent portion 2161, and is bent in a direction away from the panel 21. The panel bracket 212 is provided with a first mounting hole 2121 at a corresponding position of the bent portion 2161 of the mounting slider 216, and the left side plate 11 and the right side plate 12 are respectively matched with the panel 21 at a portion of the panel glass 213 extending out of the panel bracket 212 and the panel 21. The left side plate 11 and the right side plate 12 are provided with the same structure assembled with the slider 216, in this specification, taking the left side plate 11 as an example, the left side plate 11 is provided with a front mounting plate 111 formed at a position corresponding to the foam strip 217 of the panel 21, the front mounting plate 111 can be attached to the foam strip 217, the front mounting plate 111 is bent backward at a position adjacent to the side surface of the panel bracket 212 to form a side mounting plate 112, a second mounting hole 1111 is formed at a position corresponding to the slider 216 on the front mounting plate 111, a third mounting hole 1121 is formed at a position corresponding to the second mounting hole 1111 on the side mounting plate 112, the third mounting hole 1121 is communicated with the second mounting hole 1111, and the bottom of the third mounting hole 1121 is lower than the second mounting hole 1111. The front side of the third mounting hole 1121 lower than the second mounting hole 1111 is inclined gradually backward from top to bottom.
During installation, the panel 21 slides in from top to bottom, the bent portion 2161 of the slider 216 slides downward from the second installation hole 1111 (simultaneously passes through the third installation hole 1121) until reaching the bottom of the second installation hole 1111, and thereafter, the bent portion 2161 slides downward in the third installation hole 1121, and since the front side of the third installation hole 1121 is inclined, the slider 216 (simultaneously, the whole panel 21) can be guided to gradually move backward when sliding from top to bottom, so that the left side plate 11 is pressed against the foam strip 217, and the gap between the panel 21 and the left side plate 11 is minimized. Through the cooperation of bubble silver 217 and thread slipping 216 can effectual control between casing 1 and the panel component 2 clearance about, and its intensity has guaranteed that the reliability is strong, simple to operate, can also ensure the exquisite degree of outward appearance.
The panel assembly 2 further comprises a movement mechanism and a gap adjustment mechanism 24, the movement mechanism is arranged on the panel 21 and connects the panel 21 and the smoke barrier 22, and when the movement mechanism fails, the panel assembly 2 can still be detached from the housing 1.
The two gap adjusting mechanisms 24 are respectively arranged on the rear side of the panel bracket 212 far away from the panel glass 213 and above the left side and the right side of the air inlet 211, and the two gap adjusting mechanisms 24 are symmetrically arranged. Each gap adjustment mechanism 24 includes a mount assembly, a base 242, an optical axis 243, a first lead screw 2441, a second lead screw 2442, a nut guide 245, a guide 246, a first motor 247, and a second motor 248. The support assembly in this embodiment includes four supports 2411, which are respectively fixed on the panel bracket 212, and every two supports 2411 are arranged at an interval from top to bottom and are respectively arranged at an interval from the other two supports 2411 to the left and right. Both ends of the optical axis 243 are fixed to two of the holders 2411 disposed up and down so as to be fixed to the panel holder 212 without movement. Two ends of the first lead screw 2441 are rotatably connected to the other two supports 2411 disposed up and down, and the first lead screw 2411 is closer to the side surface of the panel bracket 212 than to the optical axis 243.
The nut guide 245 is disposed on the outer periphery of the first lead screw 2441, the guide 246 is disposed on the outer periphery of the optical axis 243, the nut guide 245 is screwed with the first lead screw 2441, and the optical axis 243 serves as a track for the guide 246 and guides the axial movement of the guide 246 on the optical axis 243. The second lead screw 2442 is rotatably connected at both ends thereof to the nut guide 245 and the guide 246, respectively, so that the up-and-down movement of the nut guide 245 can drive the second lead screw 2442 to move up and down, and the second lead screw 2442 can rotate relative to the nut guide 245 and the guide 246. The base 242 is disposed between the optical axis 243 and the first lead screw 2441, and the second lead screw 2442 is threaded through the base 242. An output shaft of the first motor 247 is connected to a first lead screw 2441, and an output shaft of the second motor 248 is connected to a second lead screw 2442.
Thus, the first motor 247 constitutes a driving mechanism for driving the base 242 to move up and down, the second motor 248 constitutes a driving mechanism for driving the base 242 to move left and right, and the support assembly, the optical axis 243, the first lead screw 2441, the second lead screw 2442, the nut guide 245 and the guide 246 constitute a transmission mechanism for driving the base 242 to move.
When the first motor 247 is operated, the first lead screw 2441 is driven to rotate, thereby moving the nut guide 245 provided thereon up and down, and thereby moving the guide 246 up and down via the second lead screw 2442. When the second motor 248 is operated, the second lead screw 2442 can be driven to rotate, thereby moving the base 242 left and right.
A limit groove and a snap spring may be further provided on the optical axis 243 to limit the maximum stroke distance of the movement of the guide block 246.
The two moving mechanisms, a first moving mechanism and a second moving mechanism, are respectively disposed on the rear side of the panel bracket 212 away from the panel glass 213, thereby connecting the smoke barrier 22 and the panel 21. The motion mechanism may be implemented by using the prior art, and only the connection between the motion mechanism and the housing is changed to be connected to the base 242 of the gap adjusting mechanism 24.
In this embodiment, the first moving mechanism includes a first support 231, a second support 232, a third support 233, a fourth support 234, and a third motor 235, and the four supports constitute a four-bar linkage. The first bracket 231 is U-shaped with a backward opening, and is fixedly connected to the base 242 of the gap adjusting mechanism 24 at a corresponding position, and the base 242 of the gap adjusting mechanism 24 is disposed in the opening of the first bracket 231. A rotation shaft 2351 is connected to an output shaft of the third motor 235, and the rotation shaft 2351 extends in the left-right direction and is rotatably connected to the first support 231. The second support 232 is disposed at the outer circumference of the rotation shaft 2351 and can rotate along with the rotation shaft 2351.
Two first lugs 2311 extend downwards from the bottom of the first bracket 231, and a first link 2312 is rotatably arranged between the two first lugs 2311. The middle of the third bracket 233 is bent to have a bent end 2331, one end of the third bracket 233 is rotatably connected to the first link 2312, the bent end 2331 is rotatably connected to one end of the second bracket 232, the other end of the third bracket 233 is rotatably connected to the fourth bracket 234, and the fourth bracket 234 is closely attached to the rear side of the smoke barrier 22.
The second movement mechanism is a driven mechanism of the first movement mechanism, and includes a fifth bracket 236, a sixth bracket 237 and a seventh bracket 238, and the fifth bracket 236 is fixedly connected to a base 242 of the gap adjustment mechanism 24 at a corresponding position. Two second lugs 2361 extend downwards from the bottom of the fifth bracket 236, and a second connecting rod 2362 is rotatably disposed between the two second lugs 2361. The shape of the sixth bracket 237 is the same as that of the third bracket 233, one end of the sixth bracket 237 is rotatably connected to the second link 2362, the other end of the sixth bracket 237 is rotatably connected to the seventh bracket 238, and the seventh bracket 238 is attached to the rear side of the smoke barrier 22.
A protective cover 239 is arranged outside the first bracket 231, the second bracket 232, the third motor 235 and part of the third bracket 233 of the first movement mechanism.
The arrangement mode of the motion mechanism enables the size chain to be short, can well ensure the gap between the smoke baffle plate 22 and the panel 21, and enables the protective cover 239 to effectively protect the motor and the motion mechanism from being polluted by oil smoke, so that the control of the gap is effective for a long time.
In addition, an oil net bracket, a lamp assembly, etc. may be fixed to the panel 21.
The panel 21 is provided with two laser distance sensors 25 for detecting a gap between the smoke barrier 22 and the edge of the air inlet 211 of the panel 21, and the two laser distance sensors are respectively arranged on the outer sides above the left side and the right side of the air inlet 211 on the panel 21.
When the gap between the smoke barrier 22 and the panel 21 needs to be adjusted after the installation of the smoke barrier 22 and the panel is completed, referring to fig. 11, the adjusting method comprises the following steps:
1) starting an adjusting program, and determining a gap uniform deviation allowable value t0, a gap maximum allowable value M0 and an adjusting degree n;
2) the laser distance sensor 25 on the left side detects a first gap distance X1 in the horizontal direction and a second gap distance Y1 in the vertical direction between the left side of the current smoke barrier 22 and the edge of the air inlet 211 of the panel 21; the laser distance sensor 25 on the right side detects a third gap distance X2 in the horizontal direction and a fourth gap distance Y2 in the vertical direction between the right side of the current smoke barrier 22 and the edge of the air inlet 211 of the panel 21;
3) respectively calculating t1 ═ Y1-Y2, and t2 ═ X1-X2;
4) judging the relationship between | t1| and t 0:
4.1) if | t1| > t0, then judging the relationship between Y1 and Y2:
4.1.1) if Y1> Y2, the right-side gap adjustment mechanism 24 is actuated, the first motor 247 is operated clockwise (or counterclockwise as long as the moving direction of the nut guide 245 is ensured), the nut guide 245 moves downward, so that the right-side base 242 moves downward, the right-side movement mechanism drives the right side of the smoke barrier 22 to move downward, the moving stroke Z is Y1-Y2, one parameter m is set as Y1, and the process proceeds to step 5);
4.1.2) if Y1 is not greater than Y2, the left gap adjustment mechanism 24 is operated, the first motor 247 is operated clockwise (or counterclockwise as long as the moving direction of the nut guide 245 is ensured), the nut guide 245 moves downward, so that the left base 242 moves downward, the left movement mechanism drives the left side of the smoke barrier 22 to move downward, the moving stroke Z is Y1-Y2, one parameter m is set as Y1, and the process goes to step 5);
4.2) if | t1| ≦ t0, setting a parameter m ═ Max (Y1, Y2), and entering step 5);
5) judging the relationship between M and M0:
5.1) if M is greater than M0, the left gap adjusting mechanism 24 is actuated, the first motor 247 rotates counterclockwise, the nut guide 245 moves upward, the left base 242 moves upward, and the left movement mechanism drives the left side of the smoke barrier 22 to move upward, the moving stroke Z is M-M0+ n, and then the process goes to step 6);
5.2) if M is less than or equal to M0, entering the step 6);
6) judging the relationship between | t2| and t 0:
6.1) if | t2| > t0, then judging the relationship between X1 and X2:
6.1.1) if X1> X2, the right gap adjustment mechanism 24 and the left gap adjustment mechanism 24 both operate, so that the second motor 248 of the left gap adjustment mechanism 24 rotates counterclockwise, the second motor 248 of the right gap adjustment mechanism 24 rotates clockwise (the rotation directions of the two motors may be opposite, as long as the moving direction of the base 242 is ensured), both the bases 242 move leftward, and thus the moving mechanism drives the smoke barrier 22 to move leftward, and the moving stroke Z is (X1-X2)/2, and then step 7 is performed;
6.1.2) if X1 is not greater than X2, both the right gap adjustment mechanism 24 and the left gap adjustment mechanism 24 operate, so that the second motor 248 of the left gap adjustment mechanism 24 rotates clockwise, the second motor 248 of the right gap adjustment mechanism 24 rotates counterclockwise (the rotation directions of the two motors may be opposite, as long as the moving direction of the base 242 is ensured), both the bases 242 move rightward, and the moving mechanism drives the smoke barrier 22 to move rightward, the moving stroke Z is (X1-X2)/2, and then the process proceeds to step 7);
6.2) if | t2| ≦ t0, then go to step 7);
7) the laser distance sensor 25 on the left side detects a first gap distance X1 in the horizontal direction and a second gap distance Y1 in the vertical direction between the left side of the current smoke barrier 22 and the edge of the air inlet 211 of the panel 21; the laser distance sensor 25 on the right side detects a third gap distance X2 in the horizontal direction and a fourth gap distance Y2 in the vertical direction between the right side of the current smoke barrier 22 and the edge of the air inlet 211 of the panel 21;
8) obtaining the difference of the gap | Y1-Y2| on the upper side, the maximum gap Max (Y1, Y2) on the upper side and the difference | X1-X2| of the left gap and the right gap;
9) and (4) judging whether to accept the gap value in the step 8), if so (whether to accept can be judged by a user), finishing the adjusting program, and if not, returning to the step 1).
The active clearance control method firstly adjusts the upper clearance and then adjusts the left clearance and the right clearance, and finally achieves the uniformity of the clearance within the acceptable range.

Claims (12)

1. The utility model provides a side-draught range hood, includes casing (1) and panel components (2) of setting in casing (1) front side, panel components (2) include panel (21) and set up fender cigarette board (22) on panel (21), its characterized in that: the panel (21) comprises a first fixing part (214) which is arranged at the top and is bent backwards and a second fixing part (215) which is arranged at the bottom and is bent backwards, wherein the first fixing part (214) and the second fixing part (215) are respectively connected and fixed with the shell (1).
2. The side draft range hood according to claim 1, wherein: casing (1) includes left side board (11), right side board (12) and sets up top back plate (13) between left side board (11) and right side board (12), the preceding terminal surface of left side board (11) and right side board (12) all from top to bottom inclines gradually backward, panel (21) set up the front side at casing (1) aslope, the inclination of panel (21) is unanimous with the inclination of left side board (11), right side board (12) preceding terminal surface.
3. The side draft range hood according to claim 2, wherein: both fixing portions extend downward gradually from the front to the rear so as to be fixed to the top front side and the bottom of the top rear plate (13) of the housing (1).
4. The side draft range hood according to claim 2, wherein: the panel (21) comprises a panel support (212) and panel glass (213) arranged on the front side face of the panel support (212), wherein elastic foam strips (217) are arranged on the rear side face of the panel glass (213) extending out of the panel support (212), and slide fasteners (216) for pressing the left side plate (11) and the foam strips (217) and pressing the right side plate (12) and the foam strips (217) are respectively arranged on the left side and the right side of the panel support (212).
5. The side draft range hood according to claim 4, wherein: the lower end of each sliding buckle (216) is provided with a bending part (2161) bent towards the direction far away from the panel (21), the panel support (212) is provided with a first mounting hole (2121) at the corresponding position of the sliding buckle (216), the left side plate (11) and the right side plate (12) are respectively matched with the panel (21) at the part of the panel glass (213) extending out of the panel support (212) and the panel (21), the structures assembled with the sliding buckles (216) on the left side plate (11) and the right side plate (12) respectively comprise a front mounting plate (111) which can be attached to a foam strip (217) of the panel (21), the front mounting plate (111) is bent backwards at the position adjacent to the side surface of the panel support (212) to form a side mounting plate (112), the position on the front mounting plate (111) corresponding to the sliding buckle (216) is provided with a second mounting hole (1111), the upper part, the lower part of the side mounting plate (112), the panel (216), And a third mounting hole (1121) is formed in a position corresponding to the second mounting hole (1111), the third mounting hole (1121) is communicated with the second mounting hole (1111) so that the bent part (2161) of the slider (2161) can pass through, and the bottom of the third mounting hole (1121) is lower than the second mounting hole (1111).
6. The side draft range hood according to claim 5, wherein: the front side edge of the third mounting hole (1121) lower than the second mounting hole (1111) is gradually inclined backwards from top to bottom.
7. The side draft range hood according to any one of claims 1 to 6, wherein: the air inlet (211) is formed in the panel (21), the smoke baffle plate (22) is arranged at the air inlet (211), and the left side and the right side of the smoke baffle plate (22) are connected with the rear side of the panel (21) through the moving mechanism respectively.
8. The side draft range hood according to claim 7, wherein: a gap adjusting mechanism (24) is arranged between each motion mechanism and the rear side of the panel (21), the gap adjusting mechanism (24) comprises a base (242) capable of moving up and down, moving left and right, and the motion mechanisms are connected with the base (242).
9. The side draft range hood according to claim 8, wherein: the gap adjusting mechanism (24) further comprises a first lead screw (2441) extending longitudinally, a first motor (247) used for driving the first lead screw (2441) to rotate, a nut guide block (245) arranged on the periphery of the first lead screw (2441), a second lead screw (2442) extending transversely and driven by the nut guide block (245) to move up and down, and a second motor (2448) used for driving the second lead screw (2442) to rotate, wherein the second lead screw (2442) penetrates through the base (242) and is in threaded connection with the base (242).
10. The side draft range hood according to claim 9, wherein: the clearance adjusting mechanism (24) further comprises a support assembly, an optical axis (243) and a guide block (246) arranged on the periphery of the optical axis (243), the support assembly comprises four supports (2411) which are respectively fixed on the panel (21), every two supports (2411) are arranged at intervals up and down and are respectively arranged with the other two supports (2411) at intervals left and right, two ends of the optical axis (243) are respectively fixed with the two supports (2411) which are arranged up and down, two ends of the first lead screw (2441) are respectively connected with the other two supports (2411) which are arranged up and down in a rotating mode, and two ends of the second lead screw (2442) are respectively connected with the nut guide block (245) and the guide block (246) in a rotating mode.
11. The side draft range hood according to claim 7, wherein: the panel (21) is provided with a laser distance sensor (25) for detecting a gap between the smoke baffle (22) and the edge of the air inlet (211) of the panel (21).
12. The clearance adjusting method of the side draft type range hood according to any one of claims 7 to 11, wherein: the method comprises the following steps:
1) starting an adjusting program, and determining a gap uniform deviation allowable value t0, a gap maximum allowable value M0 and an adjusting degree n;
2) detecting a first gap distance X1 in the horizontal direction and a second gap distance Y1 in the vertical direction between the left side of the current smoke baffle (22) and the edge of an air inlet (211) of the panel (21); detecting a third gap distance X2 in the horizontal direction and a fourth gap distance Y2 in the vertical direction between the right side of the current smoke baffle (22) and the edge of an air inlet (211) of the panel (21);
3) respectively calculating t1 ═ Y1-Y2, and t2 ═ X1-X2;
4) judging the relationship between | t1| and t 0:
4.1) if | t1| > t0, then judging the relationship between Y1 and Y2:
4.1.1) if Y1> Y2, the right gap adjusting mechanism (24) is actuated to move the right base (242) downwards, so that the right motion mechanism drives the right side of the smoke baffle plate (22) to move downwards, the moving stroke Z is equal to Y1-Y2, a parameter m is equal to Y1, and the process goes to step 5);
4.1.2) if Y1 is not more than Y2, the left gap adjusting mechanism (24) is operated to move the left base (242) downwards, so that the left motion mechanism drives the left side of the smoke baffle plate (22) to move downwards, the moving stroke Z is Y1-Y2, one parameter m is set to be Y1, and the step 5 is entered;
4.2) if | t1| ≦ t0, setting a parameter m ═ Max (Y1, Y2), and entering step 5);
5) judging the relationship between M and M0:
5.1) if M is larger than M0, the left gap adjusting mechanism (24) acts to move the left base (242) upwards, so that the left motion mechanism drives the left side of the smoke baffle plate (22) to move upwards, the moving stroke Z is M-M0+ n, and then the step 6 is carried out;
5.2) if M is less than or equal to M0, entering the step 6);
6) judging the relationship between | t2| and t 0:
6.1) if | t2| > t0, then judging the relationship between X1 and X2:
6.1.1) if the X1 is larger than the X2, the right gap adjusting mechanism (24) and the left gap adjusting mechanism (24) both act to enable the bases (242) on both sides to move leftwards, so that the motion mechanism drives the smoke baffle plate (22) to move leftwards, the moving stroke Z is (X1-X2)/2, and then the step 7) is carried out;
6.1.2) if the X1 is not more than X2, the right gap adjusting mechanism (24) and the left gap adjusting mechanism (24) both act to cause the bases (242) on both sides to move rightwards, so that the motion mechanism drives the smoke baffle plate (22) to move rightwards, the moving stroke Z is (X1-X2)/2, and then the process goes to step 7);
6.2) if | t2| ≦ t0, then go to step 7);
7) detecting a first gap distance X1 in the horizontal direction and a second gap distance Y1 in the vertical direction between the left side of the current smoke baffle (22) and the edge of an air inlet (211) of the panel (21); detecting a third gap distance X2 in the horizontal direction and a fourth gap distance Y2 in the vertical direction between the right side of the current smoke baffle (22) and the edge of an air inlet (211) of the panel (21);
8) obtaining the difference of the gap | Y1-Y2| on the upper side, the maximum gap Max (Y1, Y2) on the upper side and the difference | X1-X2| of the left gap and the right gap;
9) and judging whether the gap value of the step 8) is accepted, if so, finishing the adjusting program, and if not, returning to the step 1).
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