CN215062293U

CN215062293U - Kitchen gas exhaust device

Info

Publication number: CN215062293U
Application number: CN202121245692.8U
Authority: CN
Inventors: 华翔
Original assignee: Zhengzhou Chudun Fire Technology Co ltd
Current assignee: Zhengzhou Chudun Fire Technology Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-12-07
Anticipated expiration: 2031-06-04

Abstract

The utility model relates to a kitchen gas exhaust device, including detachable connection's fan assembly and collection oil pipe, fan assembly mainly comprises outer barrel, impeller, servo motor, oil strain structure, and the oil strain structure includes the outline border and is fixed in the filter screen of outline border inside, and the outline border mainly comprises two vertical sides and upper arc limit, lower arc limit, and outer barrel has seted up the socket that supplies oil strain structure to insert in the axial intermediate position, and during the use the socket is up, has set firmly two vertical slide bars in the outer barrel, has seted up the spout that sets up in opposite directions on two vertical slide bars, two vertical sides of oil strain structure with spout sliding fit; the oil collecting pipe mainly comprises a spiral pipe section and an inclined transition pipe section, and the lower end of the spiral pipe section is connected with the outer cylinder body through the inclined transition pipe section. The oil filtering structure in the utility model can be directly inserted and drawn out along the sliding groove, and the disassembly, assembly and maintenance are very convenient; the problem of traditional exhaust fan filter screen change trouble, later maintenance inconvenience can be solved.

Description

Kitchen gas exhaust device

Technical Field

The utility model relates to an exhaust equipment technical field, more specifically say, it relates to a kitchen gas exhaust device.

Background

The kitchen air contains a large amount of oil smoke and partially unburned gas, has great harm to human health, because range hood's exhaust capacity is limited, generally can install the exhaust fan that is used for taking a breath fast on the kitchen wall body, and ordinary exhaust fan does not have the oil strain function, and inside just a large amount of greasy dirt of accumulation after the exhaust fan uses a period of time, and greasy dirt and gas are discharged from the exhaust fan, all cause the pollution for atmospheric environment, kitchen outer wall face. At present, filter screens are arranged on the front side and the rear side of fan blades of a plurality of exhaust fans, oil stains can be effectively filtered by the method, pollution amount is reduced, the problem that the filter screens are inconvenient to disassemble, assemble and replace exists, and later maintenance is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a kitchen gas exhaust device can solve traditional exhaust fan filter screen and change trouble, the inconvenient problem of later maintenance.

The utility model provides a following technical scheme: a kitchen gas exhaust device comprises a fan assembly and an oil collecting pipe which are detachably connected, wherein the fan assembly mainly comprises an outer cylinder, an impeller, a servo motor and an oil filtering structure, the servo motor is fixed in the outer cylinder, and an output shaft of the servo motor is used for driving the impeller to rotate;

one end of the outer cylinder body is used for being fixed in a wall body of a kitchen and is a fixed end, the other end of the outer cylinder body is positioned in the kitchen and is an inward end, the impeller and the servo motor are positioned at the inward end of the outer cylinder body, the oil filtering structure comprises an outer frame and a filter screen fixed in the outer frame, the outer frame mainly comprises two vertical edges, an upper arc edge and a lower arc edge, a socket for inserting the oil filtering structure is formed in the axial middle position of the outer cylinder body, the socket faces upwards when the oil filtering structure is used, two vertical sliding rods are fixedly arranged in the outer cylinder body, sliding grooves which are arranged in opposite directions are formed in the two vertical sliding rods, and the two vertical edges of the oil filtering structure are in sliding fit with the sliding grooves;

the oil collecting pipe mainly comprises a spiral pipe section and an inclined transition pipe section, the spiral pipe section is spirally bent along a vertical axis, the lower end of the spiral pipe section is communicated with the inclined transition pipe section, the inclined transition pipe section inclines upwards towards the direction far away from the spiral pipe section, and the connection between the fan assembly and the oil collecting pipe is realized through the connection between the upper end of the inclined transition pipe section and the inner end of the outer cylinder body.

Has the advantages that: the utility model discloses a during kitchen gas exhaust device used, the air in the kitchen need be earlier through the collection oil pipe when being taken out by fan unit, and the air is when the heliciform pipeline section, thereby it can the adhesion flow down slowly along the heliciform pipeline section on the pipe wall to meet sinuous collection oil pipe wall to drip, and the air then receives the impeller effect and discharges, and the residual oil in the air divides behind the filter oil structure effect, filters on the filter screen, avoids directly discharging to polluting outer wall body in the atmosphere and atmosphere. In this kitchen gas exhaust device, the impeller upper reaches set up with the great collection oil pipe of oil droplet area of contact, convulsions in-process can be collected oil droplet in the air, and the impeller rear end sets up the oil filter structure, and the oil filter structure adopts the cartridge structure with outer barrel, can very easily carry out the dismouting with the oil filter structure, brings great facility for later maintenance. In addition, the oil collecting pipe is ingenious in design, the air exchange efficiency is not influenced while oil and oil are collected, the inclined transition pipe section has a good anti-overflow effect, and the phenomenon that the rotation of the impeller is influenced by the fact that accumulated oil at the bottom of the spiral pipe section flows to the fan assembly can be prevented.

Further, an arched blocking plate for blocking a gap between the oil filtering structure and the inner wall of the outer barrel body is fixed between the two vertical sliding rods and the inner wall of the outer barrel body, and the shape of the lower arched edge of the oil filtering structure is matched with the inner wall of the outer barrel body.

Has the advantages that: when the structure is adopted, air can be discharged through the filter screen only when passing through, the air is ensured to be fully contacted with the filter screen, and the oil filtering effect is good.

Furthermore, the impeller comprises a middle shaft sleeve and fan blades arranged on the shaft sleeve, the output shaft of the servo motor is a stepped shaft and comprises a small-diameter section positioned at the outer end of the output shaft and a large-diameter section positioned at the inner end of the output shaft, the shaft sleeve of the impeller is sleeved on the outer side of the small-diameter section of the output shaft and matched with the small-diameter section of the output shaft in a key mode, an annular stepped surface on the output shaft is used for being blocked with the shaft sleeve, a radial hole is formed in one end, close to the interior of a kitchen, of the shaft sleeve, a threaded hole corresponding to the radial hole is formed in the small-diameter section, and the impeller and the output shaft of the servo motor can be detachably connected through the radial hole and the threaded hole in a fastened mode through a screw.

Has the advantages that: just can convenient, swift pull down the impeller under the condition that outer barrel was not dismantled, be convenient for carry out dismouting, maintenance to fan assembly.

Furthermore, a drawing handle is arranged on the outer side of the upper arc-shaped edge.

Has the advantages that: the design is humanized, and cartridge oil strain structure is convenient.

Furthermore, one end of the inclined transition pipe section is provided with a connecting flange, the inward end of the outer cylinder body is provided with a cylinder body flange, and the inclined transition pipe section is connected with the outer cylinder body through a bolt flange.

Has the advantages that: the flange connection structure is fastened, and the assembly and disassembly are convenient.

Furthermore, an oil discharge port is formed in the bottom of the lower end of the spiral pipe section, an oil discharge pipe is connected to the outside of the oil discharge port, and a switch valve is installed on the oil discharge pipe.

Has the advantages that: after the oil collecting device is used for a period of time, the switch valve can be directly opened, oil dirt accumulated in the oil collecting pipe is discharged through the oil discharging pipe, the oil collecting pipe does not need to be dismounted difficultly, and the maintenance is convenient.

Drawings

Fig. 1 is an overall schematic view of a kitchen gas exhaust device 1 according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a fan assembly in embodiment 1 of a kitchen gas exhaust device according to the present invention;

FIG. 3 is a cross-sectional schematic view of the fan assembly of FIG. 2 at an oil filter configuration;

FIG. 4 is a schematic illustration of the oil filter configuration of FIG. 3;

reference numerals: 1-a fan assembly; 2-an oil collecting pipe; 3-a helical pipe section; 4-an inclined transition pipe section; 5-an oil discharge pipe; 6-a switch valve; 7-outer cylinder; 8-impeller; 9-output shaft of servo motor; 10-a cylinder flange; 11-an oil filtering structure; 12-a socket; 13-vertical sliding bar; 14-a bow-shaped closure plate; 15-upper arc edge; 16-vertical sides; 17-lower arc edge; 18-a filter screen.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The utility model discloses a kitchen gas exhaust device's embodiment 1:

the integral structure of the kitchen gas exhaust device is shown in figure 1, and comprises a fan assembly 1 and a fuel collecting pipe 2 which are detachably connected together, wherein the detailed structure of the fan assembly 1 is shown in figure 2 and mainly comprises an outer cylinder body 7, an impeller 8 positioned in the outer cylinder body, a servo motor and an oil filtering structure 11, the two ends of the outer cylinder body 7 are respectively an inward end and a fixed end, the fixed end is fixed inside a kitchen wall body, the inward end is positioned inside a kitchen, the direction shown in figure 2 is used as a reference, the left side of the outer cylinder body 7 is the inward end, and the right side of the outer cylinder body is the fixed end.

Servo motor and impeller 8 all are located outer barrel 7 towards the inner end inside, servo motor's output shaft 9 is the step axle, including the path section that is located the output shaft outer end and be located the inner big footpath section of output shaft, pass through annular step face transition between big footpath section and the path section, impeller 8 includes middle axle sleeve and the flabellum of setting in the axle sleeve outside, impeller 8's axle sleeve cover is established in the path section outside, the axle sleeve is used for keeping off with the annular step face on servo motor's the output shaft 9, axle sleeve and path section pass through the key cooperation and realize servo motor's output shaft 9 and impeller 8's the cooperation of splining. One end of the shaft sleeve close to the kitchen is provided with a through radial hole, a threaded hole is formed in the small-diameter section corresponding to the radial hole, a screw extends into the threaded hole through the radial hole and is connected and fastened with the threaded hole, and the output shaft 9 of the servo motor and the impeller 8 are detachably connected.

As shown in fig. 3-4, the oil filtering structure 11 includes an outer frame and a filter screen 18 fixed inside the outer frame, the outer frame is mainly composed of two vertical edges 16, an upper arc edge 15 and a lower arc edge 17, the outer cylinder 7 is provided with a socket 12 at an axial middle position for inserting the oil filtering structure 11, when in use, the socket 12 is arranged upward, two vertical sliding rods 13 respectively extending downward along two ends of the socket are arranged inside the outer cylinder 7, the two vertical sliding rods 13 are provided with sliding grooves arranged in opposite directions, and the two vertical edges 16 on the oil filtering structure 11 are in sliding fit with the sliding grooves on the vertical sliding rods. The oil filtering structure 11 is located at a position downstream of the impeller 8 in the air flow direction, and can filter oil in the air. In order to ensure that the air fully contacts with the filter screen when flowing through, an arched blocking plate 14 for blocking a gap between the oil filtering structure 11 and the inner wall of the outer cylinder body is fixed between the two vertical sliding rods 13 and the inner wall of the outer cylinder body 7, and the shape of the lower arc-shaped edge 17 of the oil filtering structure is matched with the inner wall of the outer cylinder body, so that the lower arc-shaped edge 17 can be tightly attached to the inner wall of the outer cylinder body.

Oil collecting pipe 2 upwards lies in impeller 8's upper reaches at the air current, it includes heliciform pipe section 3 and slope transition pipe section 4, heliciform pipe section 3 is along vertical axis helical bend, its lower extreme passes through slope transition pipe section 4 and fan unit intercommunication, slope transition pipe section 4 extends towards the direction tilt up of keeping away from heliciform pipe section, slope transition pipe section 4 leans on one end to be equipped with flange, be equipped with barrel flange 10 in the end inwards on outer barrel 7, outer barrel 7 passes through bolt flange with oil collecting pipe 2 and is connected, outer barrel 7 passes through flange releasable connection with fan unit 1, the dismouting convenience has been taken into account on firm in connection's basis. In the utility model, the oil collecting pipe 2 is arranged at the upstream of the fan component, when air passes through the spiral pipe section 3, the air can be fully contacted with the pipe wall of the spiral pipe section 3, oil drops can be adhered to the pipe wall when encountering the winding pipe wall and then slowly flow to the bottom of the spiral pipe section, thereby achieving the oil collecting effect; the advantage of providing the oil collection pipe 2 over providing a screen immediately upstream of the fan is that the oil collection is accomplished without significantly reducing the air exchange efficiency. Additionally, the utility model discloses in, 4 tilt ups of slope transition pipeline section can prevent long-pending oily overflow to fan assembly department to a certain extent and influence the impeller and normally rotate.

In this embodiment, seted up the oil drain port in the bottom of 3 lower extremes of heliciform pipeline sections, oil drain port department outer joint has oil extraction pipe 5, is equipped with ooff valve 6 on the oil extraction pipe 5, after the certain greasy dirt of oil collection pipe lower extreme accumulation, can directly open ooff valve 6 and discharge oil, it is very convenient to maintain. In addition, on the oil filtering structure 11, a drawing handle is arranged outside the upper arc-shaped edge 15, so that an operator can conveniently insert or draw the oil filtering structure 11 into or out of the outer cylinder body.

The utility model discloses a during kitchen gas exhaust device used, kitchen air need just can get into fan unit through collection oil pipe 2, the air can fully contact with the pipeline section inner wall when the heliciform pipeline section, oil drips to stay inside the pipeline section and along the pipeline section inner wall slow flow down, when the air received fan unit effect outside discharge, can receive the filter action of oil strain structure, remaining oil content in the air is filtered on filter structure's filter screen, reduce the pollution to atmosphere, the outer wall body of kitchen as far as possible. After the oil filter structure is used for one section, the oil filter structure can be directly drawn out for cleaning, the clean oil filter structure is inserted into the outer barrel body, the disassembly, the assembly and the maintenance are very convenient, the switch valve is opened, oil stains in the oil collecting pipe can be discharged outside, if the bellows is required to be further maintained, the oil collecting pipe can be disassembled from the fan assembly, the impeller is disassembled from the servo motor, and the interior of the bellows is maintained.

To sum up, the utility model discloses a kitchen gas exhaust device can better solve kitchen exhaust gas's greasy dirt pollution problem, and the efficiency of taking a breath is better, and oil strain structure easy dismounting is laborsaving.

The utility model discloses a kitchen gas exhaust device's embodiment 2:

unlike example 1, the inclined transition pipe section is provided with a horizontally extending portion at an upper end thereof, and the horizontally extending portion is screwed with the inward end of the outer cylinder.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A kitchen gas exhaust device is characterized by comprising a fan assembly and an oil collecting pipe which are detachably connected, wherein the fan assembly mainly comprises an outer cylinder, an impeller, a servo motor and an oil filtering structure, the servo motor is fixed in the outer cylinder, and an output shaft of the servo motor is used for driving the impeller to rotate;

2. The kitchen gas exhaust device according to claim 1, wherein an arch-shaped blocking plate for blocking a gap between the oil filter structure and the inner wall of the outer cylinder body is fixed between the two vertical sliding rods and the inner wall of the outer cylinder body, and the shape of the lower arc-shaped edge of the oil filter structure is matched with the inner wall of the outer cylinder body.

3. The kitchen gas exhaust device according to claim 2, wherein the impeller includes a shaft sleeve in the middle and fan blades disposed on the shaft sleeve, the output shaft of the servo motor is a stepped shaft including a small diameter section at the outer end of the output shaft and a large diameter section at the inner end of the output shaft, the shaft sleeve of the impeller is sleeved outside the small diameter section of the output shaft and is in key fit with the small diameter section of the output shaft, the annular stepped surface on the output shaft is used for blocking with the shaft sleeve, a radial hole is disposed at one end of the shaft sleeve close to the inside of the kitchen, a threaded hole corresponding to the radial hole is disposed on the small diameter section, and the impeller and the output shaft of the servo motor are detachably connected by a screw passing through the radial hole and being fastened with the threaded hole.

4. A kitchen gas exhaust device according to claim 3, characterised in that the outer side of the upper arcuate edge is provided with a pull handle.

5. A kitchen gas exhaust device according to any one of claims 1-4, characterized in that the inclined transition pipe section is provided with a connecting flange at one end, the inward end of the outer cylinder body is provided with a cylinder body flange, and the inclined transition pipe section is connected with the outer cylinder body through a bolt flange.

6. A kitchen gas exhaust device according to any one of claims 1-4, characterized in that the bottom of the lower end of the spiral pipe section is provided with an oil outlet, the oil outlet is externally connected with an oil exhaust pipe, and the oil exhaust pipe is provided with a switch valve.