CN110375356B

CN110375356B - Side-draft range hood

Info

Publication number: CN110375356B
Application number: CN201910567588.1A
Authority: CN
Inventors: 王登强; 田涛; 茅忠群; 诸永定; 李斌; 施旭娜
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-10-09
Anticipated expiration: 2039-06-27
Also published as: CN110375356A

Abstract

The invention discloses a side-suction type range hood, which comprises a shell, a panel, a smoke baffle plate and a driving transmission assembly, wherein the panel is arranged on the front side of the shell and is provided with an air inlet, the smoke baffle plate can open or close the air inlet, the driving transmission assembly is used for driving the smoke baffle plate to rotate, the driving transmission assembly comprises a driving mechanism and a transmission mechanism, the transmission mechanism transmits the driving force of the driving mechanism to the smoke baffle plate, and the transmission mechanism is connected between the panel and the smoke baffle plate, and the side-suction type range hood is characterized in that: the whole transmission mechanism is of an integrated structure and is connected with the middle position of the smoke baffle. Compared with the prior art, the invention has the advantages that: an integrated and further symmetrical transmission mechanism is connected in the middle of the smoke baffle plate, so that the motion hysteresis and the moment of unbalanced motion of the smoke baffle plate are eliminated, the gap difference and the step difference are kept within an allowable error range, the process of compensating the step difference and the gap difference is eliminated, and the labor and material cost is saved.

Description

Side-draft range hood

Technical Field

The invention relates to an oil fume purification device, in particular to a side-draft 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, and has more and more extensive application due to the advantages of neatness, lightness, small occupied space and the like; the side-draft range hood is far away by vortex wind pressure, most of the oil smoke close to the cooking bench is absorbed in an arc form, the adverse effect on the human health can be reduced, and the suction effect of the power source cannot be reduced basically because the power source is close to the cooking bench.

The existing side-draft range hood is generally provided with an air inlet on a panel, so that in order to avoid the problem that the air inlet is exposed out and not beautiful enough and oil smoke flows backward when the range hood does not work, the air inlet can be provided with a smoke baffle plate, and the range hood can also play a role of gathering smoke when in work. The range hood that panel can open and shut automatically that chinese patent application No. 201320529723.1 discloses, including casing, the fan system of setting in the casing and the air intake that is located the casing front portion, air intake department articulates through the connecting lever has the panel, is equipped with the link gear by motor drive in the casing, and link gear includes pendulum rod and pull rod, and the one end of pendulum rod and the one end of pull rod articulate together, the other end of pendulum rod with the pivot of motor is connected, and the other end and the connecting lever of pull rod are articulated, and the pull rod is in curve motion and drive the connecting lever swing are done to the pendulum rod swing in-process, thereby the drive the panel opens and shuts.

This kind of range hood, keep off the cigarette board and can inevitable produce great clearance difference and step difference with upper and lower panel after the closure, its leading cause has two: 1) the smoke baffle is driven by two ends, one of the smoke baffle is driven by a main drive, the other is driven, the smoke baffle is slender, the gravity center of the smoke baffle is at the geometric center, when the smoke baffle is driven to open and close by the driving force of a motor, the main drive end always moves first compared with the driven end, the steps at the two ends are not completely consistent, the driven end can generate a motion hysteresis phenomenon, so that the gap between the smoke baffle and the upper panel is caused, and the gap difference is generated because the gap between the main drive end and the driven end is smaller; 2) in order to enable the smoke baffle to be compressed, the driving mechanism can move a little bit perpendicular to the panel to generate a pressing force perpendicular to the panel, so that the driven end of the smoke baffle tends to warp upwards, and a large step difference is generated between the smoke baffle and the panel.

In order to solve the above problems, it is common to compensate for the difference in the step and the gap by moving the vertical panel of the rotational center of the driven end a small distance inward and upward from the parallel panel when the mechanism is designed. However, the design compensation amount cannot be determined at one time, and the prototype production needs to be repeatedly adjusted according to actual conditions, so that the process is complicated. Simultaneously, after the gap difference and the step difference between the smoke baffle and the upper and lower panels are controlled through compensation, unbalanced moment can be generated at the driving end and the driven end because the rotating centers of the driving end and the driven end are not on the same straight line, so that the driving mechanism can only overcome the unbalance through the moment generated by the deformation of the smoke baffle glass, and the service life of the smoke baffle driving mechanism is shortened.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a side-draft range hood aiming at the problems existing in the prior art, which eliminates the motion hysteresis phenomenon and the unbalanced moment of the smoke baffle, omits the process of compensating the gap difference and the step difference and saves the cost of manpower and material resources.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a side suction type range hood, includes the casing, sets up in the casing front side and set up the panel of air intake, can open or close the cigarette board that keeps off of air intake and be used for the drive to keep off cigarette board pivoted drive transmission assembly, drive transmission assembly includes actuating mechanism and transmits actuating mechanism's drive power to the drive mechanism who keeps off the cigarette board, drive mechanism connects between panel and the cigarette board of keeping off, its characterized in that: the whole transmission mechanism is of an integrated structure and is connected with the middle position of the smoke baffle.

Preferably, in order to further eliminate step difference and gap difference, the whole transmission mechanism is in a bilateral symmetry structure, and the projection of the symmetry center of the part of the transmission mechanism connected to the smoke baffle plate on the smoke baffle plate is positioned on the longitudinal central line of the smoke baffle plate; the transmission mechanism is connected with the middle position of the panel, and the projection of the symmetrical center of the part of the transmission mechanism connected to the panel on the panel is positioned on the longitudinal central line of the panel.

Preferably, the driving mechanism comprises a motor and a motor bracket for fixedly connecting the motor and the panel, and the motor bracket are arranged on the rear side surface of the panel.

In order to transmit the driving force of the driving mechanism to the smoke baffle stably, the transmission mechanism comprises a connecting shaft connected with the output end of the driving mechanism, a crank assembly used for transmitting the rotation of the connecting shaft, a connecting rod assembly used for transmitting the crank assembly and a rocker assembly used for transmitting the rotation of the connecting rod assembly, and the rocker assembly is connected with the smoke baffle through a smoke baffle bracket.

Preferably, the motor bracket comprises two support frames arranged at left and right intervals, the motor is arranged at the outer side of one support frame, an output shaft of the motor transversely extends to the inner side of the one support frame and is rotatably connected with the one support frame, one end of the connecting shaft is fixedly connected with the output shaft of the motor, the other end of the connecting shaft is rotatably connected with the other support frame, and the connecting shaft extends coaxially with the output shaft of the motor.

Preferably, the crank assembly comprises a first crank shaft sleeve and a second crank shaft sleeve which are connected with each other, the two crank shaft sleeves are parallel to each other, the connecting shaft and the first crank shaft sleeve are coaxially arranged, and the connecting shaft penetrates through the first crank shaft sleeve and synchronously rotates.

Preferably, the connecting rod assembly comprises a first connecting rod and a second connecting rod which are parallel to each other, a first connecting rod shaft sleeve sleeved on the periphery of the first connecting rod and a second connecting rod shaft sleeve sleeved on the periphery of the second connecting rod, the two connecting rod shaft sleeves are connected with each other, the first connecting rod penetrates through the second crank shaft sleeve, and the first connecting rod and the second connecting rod extend in the same direction with the connecting shaft respectively.

Preferably, the rocker assembly comprises a rotating shaft serving as a rocker assembly rotating shaft and arranged between the two support frames, a first rocker shaft sleeve arranged on the periphery of the rotating shaft, a second rocker shaft sleeve arranged on the periphery of the second connecting rod, and a connecting part used for being connected with the smoke baffle plate support, the rotating shaft is parallel to the connecting shaft, the first rocker shaft sleeve and the second rocker shaft sleeve are connected with each other, the connecting part is connected with the second rocker shaft sleeve, and the connecting part extends forwards from the second rocker shaft sleeve.

Preferably, the cigarette baffle support includes first linking bridge and the second linking bridge that becomes angle, first linking bridge is connected with the rocker subassembly, the laminating of second linking bridge is fixed on the trailing flank of cigarette baffle.

Preferably, for solving the problem of keeping off the cigarette board and coming unstuck and the deformation problem, avoid the poor national standard that surpasss in step and clearance, the second linking bridge keeps away from the lower extreme that keeps off cigarette board one side and is provided with the cushion foot, be provided with on the panel with the corresponding position of cushion foot backward sunken, with cushion foot complex recess.

Compared with the prior art, the invention has the advantages that: 1) an integrated and further symmetrical transmission mechanism is connected in the middle of the smoke baffle plate, so that the motion hysteresis phenomenon and the motion unbalanced moment of the smoke baffle plate are eliminated, the gap difference and the step difference are kept within an allowable error range, the process of compensating the step difference and the gap difference is eliminated, and the labor and material cost is saved; 2) all parts of the transmission mechanism are designed to extend transversely, so that the strength of the movement mechanism and the stability of the smoke baffle are improved, and the service life of the smoke baffle is prolonged; 3) the buffering component is arranged, so that the cigarette blocking plate bracket is buffered and stressed, the problem of degumming and deformation of the cigarette blocking plate is solved, and the step difference and the gap difference exceeding the national standard are avoided.

Drawings

Fig. 1 is a schematic view of an open state of a smoke barrier of a side-draft range hood according to an embodiment of the invention;

FIG. 2 is a partial schematic view of a side draft range hood according to an embodiment of the present invention;

fig. 3 is a schematic view of a driving transmission assembly of the side-draft range hood according to the embodiment of the present invention;

fig. 4 is a partial schematic view of the side-suction range hood according to the embodiment of the present invention in an opened state of a smoke barrier;

fig. 5 is a schematic view of a closed state of a smoke barrier of the side-draft range hood according to the embodiment of the invention;

fig. 6 is a partial schematic view of a closed state of a smoke barrier of the side-draft range hood according to the embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Referring to fig. 1 to 4, a side-draft range hood includes a housing 1, a panel 2 disposed at the front side of the housing 1, and a smoke barrier 3. For convenience of description, in this specification, "front", "rear", "left", "right", "up" and "down" refer to the direction of the extractor hood relative to the user.

The air inlet 21 is formed in the panel 2, the upper end of the smoke baffle 3 is hinged to the panel 2, and the smoke baffle 3 rotates relative to the panel 2 through the driving transmission mechanism, so that the air inlet 21 can be opened or closed. The panel 2 comprises a first panel 22 located above the smoke barrier 3 and a second panel 23 located below the smoke barrier 3, and the air inlet 21 is formed between the first panel 22 and the second panel 23.

The driving transmission assembly is arranged in the middle of the first panel 22 and comprises a driving mechanism and a transmission mechanism, wherein the driving mechanism comprises a motor 41 and a motor support 42 for fixedly connecting the motor 41 with the first panel 22. The motor support 42 includes a bottom plate 421 fixedly connected to the rear side surface of the first panel 22 facing the inside of the housing 1, and a support frame 422 provided at the left and right ends of the bottom plate 421 and extending rearward, the bottom plate 421 is attached to the first panel 22, and the support frame 422 is preferably perpendicular to the bottom plate 421. The motor 41 is disposed on the outer side of one of the support frames 422 of the motor bracket 42 (the side away from the other support frame 422), the output shaft 411 of the motor 41 extends laterally (left-right direction) to the inner side of the support frame 422 (the side toward the other support frame 422), and the output shaft 411 is rotatably connected to the support frame 422.

The transmission mechanism comprises a connecting shaft 43, a crank assembly 44, a connecting rod assembly 45, a rocker assembly 46 and a smoke barrier bracket 47. One end of the connecting shaft 43 is fixedly connected with the output shaft 411 of the motor 41, the other end is rotatably connected with the other supporting frame 422, and the connecting shaft 43 and the output shaft 411 of the motor 41 extend coaxially.

The crank assembly 44 comprises two first and

second crank sleeves

441, 442 connected to each other in parallel, the connecting shaft 43 being arranged coaxially with the first crank sleeve 441, the connecting shaft 43 passing through the first crank sleeve 441 therein and rotating synchronously therewith.

The link assembly 45 includes a first link 451 and a second link 452 parallel to each other, a first link shaft sleeve 453 disposed on an outer circumference of the first link 451, and a second link shaft sleeve 454 disposed on an outer circumference of the second link 452, which are connected to each other. The first connecting rod 451 passes through the second crank boss 442. The first link bushing 453 is provided in two stages at the outer periphery of the first link 451 and at both ends of the second crank bushing 442. The first and

second links

451, 452 extend in the same direction as the connecting shaft 43.

The rocker assembly 46 includes a rotating shaft 461 disposed between the two support brackets 422, a first rocker boss 462 disposed at an outer periphery of the rotating shaft 461, a second rocker boss 463 disposed at an outer periphery of the second link 452, and a connecting portion 464 for connecting with the smoke barrier bracket 47. The rotating shaft 461 is parallel to the connecting shaft 43, two ends of the rotating shaft 461 are respectively fixedly connected with the two support frames 422, the first rocker shaft sleeve 462 is rotatably connected with the rotating shaft 461, the rotating shaft 461 serves as a rotating shaft of the whole rocker assembly 46, and the rocker assembly 46 rotates around the rotating shaft 461. The first rocker boss 462 and the second rocker boss 463 are coupled to each other, and the second rocker boss 463 has two sections, which are respectively disposed at both ends of the second link boss 454 at the outer circumference of the second link 452. The connecting portion 464 is connected with the second rocker sleeve 463. The connecting portion 464 extends forward from the second rocker boss 463, and the connecting portion 464 may have an arc shape protruding rearward.

The smoke barrier frame 47 includes a first coupling frame 471 and a second coupling frame 472 which are flat plate-shaped, and the first coupling frame 471 and the second coupling frame 472 are preferably perpendicular to each other and may be integrally formed. The joint between the end of the connecting portion 464 and the first connecting frame 471 is flat, so that the two can be tightly attached to each other. The second connecting bracket 472 is attached and fixed to the rear side of the smoke barrier 3 facing the inside of the housing 1.

The whole transmission mechanism is in a bilateral symmetry structure, and the projections of the symmetry centers of all the parts on the first panel 22 and the smoke baffle 3 are respectively positioned on the longitudinal central lines of the first panel 22 and the smoke baffle 3.

Different from the 'sheet type rod' in the current market, each part of the transmission mechanism of the invention extends in the transverse direction and changes from 'sheet type' to 'thin-wall type', and each part adopts a connection mode similar to 'hinge shaft core type', thereby forming an opening and closing mechanism of the smoke baffle 3. This drive mechanism has improved the intensity of motion, has improved the stability of 3 horizontal directions of keeping off the cigarette board simultaneously.

Because the mode of the main-driven and the secondary-driven of the smoke baffle plate 3 is changed into the design of the integral type of the middle drive and the design of the completely symmetrical mode, the motion hysteresis phenomenon of the left end and the right end of the smoke baffle plate 3 is eliminated, the gap difference and the step difference are kept in the allowable error range, the original motion mechanism parameter compensation repeated debugging process is eliminated, and the labor cost and the material cost are reduced.

The lower end of the second connecting bracket 472 far from the smoke barrier 3 is provided with a cushion foot 473, and a position on the panel 2 corresponding to the cushion foot 473 is provided with a groove 24 which is recessed backwards and is matched with the cushion foot 473. Make the buffer power of keeping off cigarette board 3 when closing completely act on keeping off cigarette board support 47 from this, make to keep off cigarette board 3 (glass makes) and do not receive any buffer power completely, make to keep off and do not have great clearance between 3 both sides of cigarette board and the panel 2, solved and kept off cigarette board 3 middle part bending resistance ability poor and the deformation problem, solved the problem of coming unstuck of keeping off cigarette board support 47 and keeping off cigarette board 3 on the one hand, on the other hand also further reduces the step difference and the clearance difference that keep off cigarette board 3.

Referring to fig. 5 and 6, the smoke barrier 3 is closed, the air inlet 21 is closed, and the range hood is in a non-working state; referring to fig. 1 and 5, when the range hood is opened, the driving mechanism starts to operate, and drives the connecting shaft 43 to rotate clockwise, so as to drive the crank assembly 44 to rotate, push the connecting rod assembly 45 and the rocker assembly 46 to rotate clockwise, so that the rocker assembly 46 drives the smoke barrier 3 to open outwards.

Alternatively, the driving mechanism can also adopt an electric push rod, a worm gear, a worm and the like; the four-bar mechanism formed by the connecting shaft 43, the crank assembly 44, the connecting rod assembly 45 and the rocker assembly 46 can be realized by other moving rod forms.

In the invention, an integrated and further symmetrical transmission mechanism is connected in the middle of the smoke baffle plate, so that the motion hysteresis phenomenon and the unbalanced moment of the motion of the smoke baffle plate are eliminated, the gap difference and the step difference are kept in an allowable error range, the process of compensating the step difference and the gap difference is eliminated, and the labor and material cost is saved; all parts of the transmission mechanism are designed to extend transversely, so that the strength of the movement mechanism and the stability of the smoke baffle are improved, and the service life of the smoke baffle is prolonged; the buffering component is arranged, so that the cigarette blocking plate bracket is buffered and stressed, the problem of degumming and deformation of the cigarette blocking plate is solved, and the step difference and the gap difference exceeding the national standard are avoided.

Claims

1. The utility model provides a side suction type range hood, includes casing (1), sets up in casing (1) front side and set up panel (2) of air intake (21), can open or close cigarette board (3) of air intake (21) and be used for driving cigarette board (3) pivoted drive transmission subassembly, drive transmission subassembly includes actuating mechanism and transmits actuating mechanism's drive power to the drive mechanism who keeps off cigarette board (3), drive mechanism connects between panel (2) and cigarette board (3), its characterized in that: the driving mechanism comprises a motor (41) and a motor support (42) for fixedly connecting the motor (41) with the panel (2), the motor (41) and the motor support (42) are arranged on the rear side face of the panel (2), and the transmission mechanism is integrally structured and is connected with the middle position of the smoke baffle (3).

2. The side draft range hood according to claim 1, wherein: the transmission mechanism is integrally in a bilateral symmetry structure, and the projection of the symmetry center of the part of the transmission mechanism connected to the smoke baffle plate (3) on the smoke baffle plate (3) is positioned on the longitudinal central line of the smoke baffle plate (3); the transmission mechanism is connected with the middle position of the panel (2), and the projection of the symmetrical center of the part of the transmission mechanism connected to the panel (2) on the panel (2) is positioned on the longitudinal central line of the panel (2).

3. The side draft range hood according to claim 1, wherein: the transmission mechanism comprises a connecting shaft (43) connected with the output end of the driving mechanism, a crank assembly (44) used for transmitting the rotation of the connecting shaft (43), a connecting rod assembly (45) used for transmitting the rotation of the crank assembly (44) and a rocker assembly (46) used for transmitting the rotation of the connecting rod assembly (45), and the rocker assembly (46) is connected with the smoke baffle plate (3) through a smoke baffle plate bracket (47).

4. The side draft range hood according to claim 3, wherein: the motor support (42) comprises two support frames (422) which are arranged at left and right intervals, the motor (41) is arranged on the outer side of one support frame (422), the output shaft (411) of the motor (41) transversely extends to the inner side of the one support frame (422), the output shaft (411) is rotatably connected with the one support frame (422), one end of the connecting shaft (43) is fixedly connected with the output shaft (411) of the motor (41), the other end of the connecting shaft is rotatably connected with the other support frame (422), and the connecting shaft (43) and the output shaft (411) of the motor (41) coaxially extend.

5. The side draft range hood according to claim 4, wherein: the crank assembly (44) comprises a first crank shaft sleeve (441) and a second crank shaft sleeve (442) which are connected with each other, the two crank shaft sleeves are parallel to each other, the connecting shaft (43) and the first crank shaft sleeve (441) are coaxially arranged, and the connecting shaft (43) penetrates through the first crank shaft sleeve (441) and synchronously rotates.

6. The side draft range hood according to claim 5, wherein: the connecting rod assembly (45) comprises a first connecting rod (451) and a second connecting rod (452) which are parallel to each other, a first connecting rod shaft sleeve (453) sleeved on the periphery of the first connecting rod (451) and a second connecting rod shaft sleeve (454) sleeved on the periphery of the second connecting rod (452), the two connecting rod shaft sleeves are connected with each other, the first connecting rod (451) penetrates through a second crank shaft sleeve (442), and the first connecting rod (451) and the second connecting rod (452) extend in the same direction with the connecting shaft (43) respectively.

7. The side draft range hood according to claim 6, wherein: the rocker assembly (46) comprises a rotating shaft (461) which is arranged between the two support frames (422) and is used as a rotating shaft of the rocker assembly (46), a first rocker shaft sleeve (462) which is arranged on the periphery of the rotating shaft (461), a second rocker shaft sleeve (463) which is arranged on the periphery of the second connecting rod (452), and a connecting part (464) which is used for being connected with the smoke baffle plate bracket (47), wherein the rotating shaft (461) is parallel to the connecting shaft (43), the first rocker shaft sleeve (462) and the second rocker shaft sleeve (463) are connected with each other, the connecting part (464) is connected with the second rocker shaft sleeve (463), and the connecting part (464) extends forwards through the second rocker shaft sleeve (463).

8. The side draft range hood according to claim 3, wherein: the cigarette baffle support (47) comprises a first connecting support (471) and a second connecting support (472) which are angled, the first connecting support (471) is connected with the rocker assembly (46), and the second connecting support (472) is attached and fixed to the rear side face of the cigarette baffle (3).

9. The side draft range hood according to claim 8, wherein: the lower end of one side of the second connecting support (472) far away from the smoke baffle (3) is provided with a buffer pad foot (473), and a groove (24) which is recessed backwards and matched with the buffer pad foot (473) is arranged at the position, corresponding to the buffer pad foot (473), on the panel (2).