CN206875526U - A kind of exhaust fume collecting hood of lower exhaustion type fume exhauster - Google Patents

Abstract

The application provides a kind of exhaust fume collecting hood of lower exhaustion type fume exhauster, including top plate, cover body and the bottom plate being from top to bottom fixedly connected sequentially, and cover body has the smoke collecting chamber of indent, and the bottom of smoke collecting chamber is provided with exhaust outlet, and bottom plate is provided with the air outlet with the location matches of exhaust outlet.The utility model may be used on kitchen utensils field, and wherein top plate, cover body and bottom plate is in turn connected to form the major architectural structure of exhaust fume collecting hood；Top plate can be used for fixing control assembly, and such control assembly separates with cover body and smoke collecting chamber, in case the oil smoke in smoke collecting chamber has a negative impact to control assembly；Formed with smoke collecting chamber in cover body, smoke collecting chamber bottom is provided with exhaust outlet, bottom plate is provided with air outlet, splicing sleeve can be connected to exhaust outlet by air outlet, so oil smoke can be discharged by smoke collecting chamber from the exhaust outlet of bottom, then splicing sleeve is flow to, and is finally discharged from splicing sleeve, to realize the function of exhaust fume collecting hood.

Description

A kind of exhaust fume collecting hood of lower exhaustion type fume exhauster

Technical field

Kitchen utensils field is the utility model is related to, in particular it relates to a kind of exhaust fume collecting hood of lower exhaustion type fume exhauster.

Background technology

Existing lower exhaustion type fume exhauster, generally include exhaust fume collecting hood and the cabinet being connected to below exhaust fume collecting hood.Exhaust fume collecting hood includes Cover body and bottom plate two parts, cover body is interior to be provided with smoke collecting chamber, and control panel is arranged on cover body, and the oil smoke in smoke collecting chamber can gather In the dorsal part of control panel, contamination control panel, and influence the radiating of control panel.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of is easy to chain of command for lower exhaustion type fume exhauster The exhaust fume collecting hood that plate is fixed and worked.

In order to reach the purpose of this utility model, the technical scheme that the utility model is taken is as follows：

Embodiment of the present utility model provides a kind of exhaust fume collecting hood of lower exhaustion type fume exhauster, and the exhaust fume collecting hood is included by up to Under the top plate, cover body and the bottom plate that are fixedly connected sequentially, the cover body has the smoke collecting chamber of indent, and the bottom of the smoke collecting chamber is provided with Exhaust outlet, the bottom plate are provided with the air outlet with the location matches of the exhaust outlet.

The exhaust fume collecting hood that the present embodiment provides, its top plate, cover body and bottom plate are sequentially connected, and form the major architectural knot of exhaust fume collecting hood Structure；Formed with smoke collecting chamber in cover body, pass through for oil smoke；Smoke collecting chamber bottom is provided with exhaust outlet, and exhaust outlet connects with smoke collecting chamber, So that the oil smoke in smoke collecting chamber is discharged from exhaust outlet；Bottom plate is provided with air outlet, and splicing sleeve can be connected to air draft by air outlet Mouthful, so that the oil smoke come out from exhaust outlet is discharged by splicing sleeve, and then cabinet is discharged to, to realize the function of exhaust fume collecting hood.

Top plate can be used for fixing control assembly, and such control assembly separates with cover body and smoke collecting chamber, in order to avoid in smoke collecting chamber Fume pollution control assembly or the radiating for influenceing control assembly.

The location matches of air outlet and exhaust outlet, it is easy to splicing sleeve to be connected to exhaust outlet after passing through air outlet；And air outlet There can be certain position-limiting action to the pipe that continues, be advantageous to the firm connection of splicing sleeve and exhaust outlet.

Alternatively, the top plate has the first sound insulation chamber above the smoke collecting chamber, and the front of the top plate is provided with First installation through-hole, the exhaust fume collecting hood are provided with control assembly, and the control assembly is assemblied in by first installation through-hole The first sound insulation intracavitary.

There is the first sound insulation chamber, and the first sound insulation chamber is located at the top of smoke collecting chamber in top plate, the first sound insulation chamber can reduce from Top outflow because oil smoke by smoke collecting chamber the vibrating noise and caused by, and then reduce lower exhaustion type fume exhauster work when entirety make an uproar Sound, improve the use feeling of user；Control assembly is assemblied in the first sound insulation intracavitary, takes full advantage of the space of the first sound insulation intracavitary Control assembly is installed, reduces the size at the top of exhaust fume collecting hood；The front of top plate is provided with the first installation through-hole, in order to control assembly The first sound insulation intracavitary is assemblied in after through the first installation through-hole.

Alternatively, the front of the top plate is additionally provided with the second installation through-hole, and second installation through-hole is located at the top plate The left and right sides, the exhaust fume collecting hood is fixed on wall by the first screw through second installation through-hole and the first sound insulation chamber On.

The front of top plate offers the second installation through-hole, and the top of exhaust fume collecting hood is being fixed on wall with the first screw When, in the front of exhaust fume collecting hood, the first screw is passed through into the second installation through-hole and the first sound insulation chamber first, then with the first screw The rear portion of top plate is fixed with wall, realizes the top of exhaust fume collecting hood and the fixation of wall；In addition, in fixation procedure, first Screw is not passed through cover body, avoids the flowing that oil smoke is influenceed caused by smoke collecting chamber open interior and the sealing effect for influenceing cover body Fruit, prevent oil smoke from being overflowed from tapping, and then influence the mist extractor effect of lower exhaustion type fume exhauster.

The second installation through-hole is equipped with left and right sides of top plate, you can will collect by the first screw in the left and right sides of top plate The top of petticoat pipe is fixed on wall so that the left and right sides uniform force on the top of exhaust fume collecting hood, and fixation is more firm.

Alternatively, the top plate has bottom wall, and the bottom wall is encircled into the smoke collecting chamber with the cover body.

Bottom wall separates the first sound insulation chamber with smoke collecting chamber, can prevent oil smoke from entering the first sound insulation intracavitary, and then accumulate to In the control assembly of first sound insulation intracavitary, contamination control component；Simultaneously because the temperature of oil smoke is higher, bottom wall can prevent oil smoke from entering Enter to the first sound insulation intracavitary on control assembly heating, the radiating of influence control assembly, with the normal work of convenient control assembly.

Alternatively, the bottom wall tilts down from front to back.

Bottom wall tilts down from front to back, can play guide functions to the oil smoke in smoke collecting chamber, be advantageous to oil Cigarette flow to exhaust outlet, while reduces the generation of turbulent flow, reduces vibrating noise；In addition, bottom wall can be used for installing LED, so pacify The light that LED on bottom wall is sent irradiates obliquely, avoids direct projection into the eye of people.

Alternatively, the bottom plate is U-shaped, and formed with the second sound insulation chamber between the bottom plate and the cover body.

Bottom plate is U-shaped in upper end open, and U-shaped openend is connected with the bottom wall of cover body, so can be in the bottom wall of cover body The second sound insulation chamber is formed between bottom plate, the second sound insulation chamber is located at the bottom of smoke collecting chamber, and the second sound insulation chamber can reduce from below Outflow because oil smoke by smoke collecting chamber the vibrating noise and caused by, and then further reduce lower exhaustion type fume exhauster work when entirety Noise, further to improve the use feeling of user.

Alternatively, the front of the bottom plate is provided with the 3rd installation through-hole, and the 3rd installation through-hole is located at the bottom plate The exhaust fume collecting hood is fixed on wall by the left and right sides, the second screw through the 3rd installation through-hole and the second sound insulation chamber On.

The front of bottom plate offers the 3rd installation through-hole, and the bottom of exhaust fume collecting hood is being fixed on wall with the second screw When, in the front of exhaust fume collecting hood, the second screw is passed through into the 3rd installation through-hole and the second sound insulation chamber first, then with the second screw The rear portion of bottom plate is fixed with wall, and then realizes the bottom of exhaust fume collecting hood and the fixation of wall；In addition, in fixation procedure, Second screw is not passed through cover body, avoids the flowing that oil smoke is influenceed caused by smoke collecting chamber open interior and the sealing for influenceing cover body Effect, prevent oil smoke from being overflowed from tapping, and then influence the mist extractor effect of lower exhaustion type fume exhauster.

The 3rd installation through-hole is equipped with left and right sides of bottom plate, you can will collect by the second screw in the left and right sides of bottom plate The bottom of petticoat pipe is fixed on wall so that the left and right sides uniform force of the bottom of exhaust fume collecting hood, and fixation is more firm.

Alternatively, the left and right sides of the cover body is located at the collection cigarette formed with the 3rd sound insulation chamber, the 3rd sound insulation chamber The left and right sides of chamber.

The left and right sides of cover body has a 3rd sound insulation chamber, and the 3rd sound insulation chamber is located at the left and right sides of smoke collecting chamber, the 3rd every Sound chamber can reduce from the left and right sides outflow because oil smoke by smoke collecting chamber the vibrating noise and caused by；First sound insulation chamber, second every Sound chamber and the 3rd sound insulation chamber coordinate, and can reduce the vibrating noise from the outflow of smoke collecting chamber surrounding, lower exhaustion type fume exhauster is worked Caused lower noise is to minimum.

Alternatively, the rear of the exhaust fume collecting hood is additionally provided with backboard, and the backboard connects the top plate and the bottom plate.

Backboard connects top plate and bottom plate, i.e. backboard block the rear portion of top plate, cover body and bottom plate so that the dorsal part of exhaust fume collecting hood is more Add attractive in appearance；Cause that the dorsal part of exhaust fume collecting hood is flat simultaneously, to be bonded with wall, exhaust fume collecting hood is fixed on wall.

Alternatively, the backboard is provided with one in the bottom plate and inserts pawl, and another is provided with slot, the slotting pawl It is plugged into the slot.

Backboard carries out socket connection by inserting pawl with bottom plate with slot, and the connected mode is simple, easy to implement, and the grafting Connection can position backboard, be easy to further otherwise（Such as screw）Stationary backplate.

Compared to the prior art the utility model, has the advantages that：

1st, the top plate of exhaust fume collecting hood, cover body and bottom plate are in turn connected to form main frame structure, and top plate therein can be used for Fixed control assembly, such control assembly separate with cover body and smoke collecting chamber, in case the oil smoke in smoke collecting chamber produces to control assembly Adverse effect；

2nd, the first sound insulation chamber in top plate, the second sound insulation chamber in bottom plate, the 3rd sound insulation chamber difference at left and right sides of cover body Positioned at the surrounding of smoke collecting chamber, three sound insulation chambers coordinate, and can reduce the vibrating noise from the outflow of smoke collecting chamber surrounding, by lower-discharging type oil Lower noise is to minimum caused by the work of cigarette machine；

3rd, the front of top plate is provided with the first installation through-hole, and the is assemblied in after passing through the first installation through-hole in order to control assembly One sound insulation intracavitary, the assembly space of control assembly is saved, reduces the size at the top of exhaust fume collecting hood；

4th, positive second installation through-hole of top plate and positive 3rd installation through-hole of bottom plate can be easily installed personnel and collect The front of petticoat pipe, exhaust fume collecting hood is fixed on wall using second installation through-hole and the 3rd installation through-hole；

5th, bottom wall separates the first sound insulation chamber with smoke collecting chamber, can prevent oil smoke from entering the first sound insulation intracavitary, contamination control Component, and control assembly does not contact with oil smoke, is advantageous to radiating and the normal work of control assembly；Further, bottom wall by it is preceding extremely After dip down and tilt obliquely, guide functions can be played to the oil smoke in smoke collecting chamber, reduce vibrating noise, while to be arranged on The light that LED on bottom wall is sent irradiates obliquely, avoids direct projection into the eye of people；

6th, exhaust fume collecting hood dorsal part is fixed with backboard, and backboard can block the rear portion of top plate, cover body and bottom plate so that the back of the body of exhaust fume collecting hood Side is more attractive in appearance；Cause that the dorsal part of exhaust fume collecting hood is flat simultaneously, to be bonded with wall, exhaust fume collecting hood is fixed on wall.

Other features and advantages of the utility model will illustrate in the following description, also, partly from specification In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages can pass through Specifically noted structure is realized and obtained in specification, claims and accompanying drawing.

Brief description of the drawings

Accompanying drawing is used for providing further understanding technical solutions of the utility model, and a part for constitution instruction, With being used to explain the technical solution of the utility model together with embodiments herein, do not form to technical solutions of the utility model Limitation.

Fig. 1 is the decomposition texture schematic diagram according to the exhaust fume collecting hood of the lower exhaustion type fume exhauster of an embodiment of the present utility model；

Fig. 2 is the schematic rear view of the assembling structure of the exhaust fume collecting hood shown in Fig. 1；

Fig. 3 is Fig. 2 A-A to cross section structure diagram；

Fig. 4 is Fig. 3 B portions structure enlargement diagram；

Fig. 5 is the assembling schematic diagram of the part-structure of the exhaust fume collecting hood shown in Fig. 1, wherein eliminating backboard, control assembly, control Panel processed, upper door-plate, smoke deflector etc.；

Fig. 6 is the decomposing schematic representation of the assembling structure shown in Fig. 5；

Fig. 7 is the dimensional structure diagram of top plate in Fig. 6；

Fig. 8 is the dimensional structure diagram of cover body in Fig. 6；

Fig. 9 is the dimensional structure diagram of Fig. 6 bottom plates；

Figure 10 is the dimensional structure diagram of the backboard of the exhaust fume collecting hood shown in Fig. 1.

Wherein, the relation in Fig. 1-Figure 10 between reference and component names is：

1 exhaust fume collecting hood, 10 top plates, 100 first sound insulation chambers, 101 first installation through-holes, 102 second installation through-holes, 103 bottom walls, 104 reinforced supports, 105 fixing holes, 20 cover bodies, 200 smoke collecting chambers, 201 exhaust outlets, 202 the 3rd sound insulation chambers, 203 slots, 30 bottoms Plate, 300 air outlets, 301 second sound insulation chambers, 302 the 3rd installation through-holes, 303 fixing holes, 304 slots, 40 control assemblies, 50 back ofs the body Plate, 501,502 insert pawls, 60 safety separation screens, 2 control panels, door-plate on 3,4 smoke deflectors.

Embodiment

For the purpose of this utility model, technical scheme and advantage is more clearly understood, below in conjunction with accompanying drawing to this The embodiment of utility model is described in detail.It should be noted that in the case where not conflicting, embodiment in the application and Feature in embodiment can be mutually combined.

As depicted in figs. 1 and 2, embodiment of the present utility model provides a kind of exhaust fume collecting hood 1 for lower exhaustion type fume exhauster. As shown in Figure 5 and Figure 6, exhaust fume collecting hood 1 includes the top plate 10, cover body 20 and the bottom plate 30 that are from top to bottom fixedly connected sequentially, top plate 10, After cover body 20 and bottom plate 30 are sequentially connected, the major architectural structure of exhaust fume collecting hood 1 is formed.

Wherein, as shown in Figure 6 and Figure 8, cover body 20 has the smoke collecting chamber 200 of indent, passes through for oil smoke；Smoke collecting chamber 200 bottom is provided with exhaust outlet 201, and exhaust outlet 201 connects with smoke collecting chamber 200, so that the oil smoke in smoke collecting chamber 200 is from exhaust outlet 201 discharges.Alternatively, safety separation screen 60 is installed at exhaust outlet 201（See Fig. 1）.

As shown in figure 9, bottom plate 30 is provided with air outlet 300.Splicing sleeve（It is not shown）Can by air outlet 300 and second every Sound chamber 301 is connected to exhaust outlet 201, so that the oil smoke come out from exhaust outlet 201 is discharged by splicing sleeve.

Preferably, the location matches of air outlet 300 and exhaust outlet 201, and the perforated area of air outlet 300 is more than exhaust outlet 201 perforated area, exhaust outlet 201 is connected to after passing through the sound insulation chamber 301 of air outlet 300 and second in order to splicing sleeve.Air-out Mouth 300 can have certain position-limiting action to the pipe that continues, and be advantageous to the firm connection of splicing sleeve and exhaust outlet 201.

Alternatively, as shown in Figure 6 and Figure 7, there is the first sound insulation chamber 100, and the first sound insulation chamber 100 is positioned at collection in top plate 10 The top of smoke chamber 200.When lower exhaustion type fume exhauster works, oil smoke can enter exhaust fume collecting hood 1, meeting when oil smoke flows in smoke collecting chamber 200 Vibrating noise is produced, and the first sound insulation chamber 100 can reduce the vibrating noise from top outflow, and then reduce lower exhaustion type fume exhauster work Overall noise when making, improve the use feeling of user.

Alternatively, as shown in Figure 6 and Figure 7, the front of top plate 10 is provided with the first installation through-hole 101, and exhaust fume collecting hood 1 is provided with control Component 40 processed（See Fig. 1）, control assembly 40 is assemblied in the first sound insulation chamber 100 by the first installation through-hole 101.

The front of top plate 10 is provided with the first installation through-hole 101, after passing through the first installation through-hole 101 in order to control assembly 40 It is assemblied in the first sound insulation chamber 100；Control assembly 40 is assemblied in the first sound insulation chamber 100, takes full advantage of the first sound insulation chamber 100 Interior space mounting control assembly 40, reduce the size at the top of exhaust fume collecting hood 1；And control assembly 40 is installed to the first sound insulation chamber After in 100, control assembly 40 separates with cover body 20 and smoke collecting chamber 200, in order to avoid the fume pollution control assembly 40 in smoke collecting chamber 200 Or influence the radiating of control assembly 40.

Still optionally further, as shown in Fig. 6 and Fig. 9, bottom plate 30 is U-shaped in upper end open, U-shaped openend and cover body 20 Bottom be connected, between bottom plate 30 and cover body 20 formed with the second sound insulation chamber 301.The second sound insulation chamber 301 is positioned at collection cigarette The bottom of chamber 200, the second sound insulation chamber 301 can reduce being made an uproar because oil smoke is shaken by smoke collecting chamber 200 and caused by of spreading out of from below Sound, and then further reduce overall noise when lower exhaustion type fume exhauster works.

Further alternatively, as shown in Figure 6 and Figure 8, the left and right sides of cover body 20 formed with the 3rd sound insulation chamber 202, and 3rd sound insulation chamber 202 is located at the left and right sides of smoke collecting chamber 200.So, the 3rd sound insulation chamber 202 can reduce from left and right sides outflow Because oil smoke by smoke collecting chamber 200 vibrating noise and caused by.

First sound insulation chamber 100, the second sound insulation chamber 301 and the 3rd sound insulation chamber 202 coordinate, and can reduce from smoke collecting chamber 200 4 The vibrating noise of week outflow, and preferably, the first sound insulation chamber 100, the second sound insulation chamber 301, the 3rd sound insulation chamber 202 are connected, shape Into surround smoke collecting chamber 200 the back-shaped passage of sound insulation, further improve soundproof effect, by lower exhaustion type fume exhauster work caused by make an uproar Sound is reduced to minimum, optimizes the use feeling of user.

Alternatively, top plate 10, cover body 20 and bottom plate 30 are sheet metal component, the first sound insulation chamber 100, the second sound insulation chamber 301, Three sound insulation chambers 202 are formed by sheet metal component bending.

Alternatively, as shown in figure 5, top plate 10 has bottom wall 103, bottom wall 103 is encircled into smoke collecting chamber 200 with cover body 20.This Sample bottom wall 103 separates the first sound insulation chamber 100 with smoke collecting chamber 200, can prevent oil smoke from entering in the first sound insulation chamber 100, with controlling Component 40 processed contacts.Oil smoke does not contact with control assembly 40, on the one hand oil smoke can not be accumulated in the first sound insulation chamber 100 In control assembly 40, contamination control component 40；There is gap between the oil smoke of high temperature and control assembly 40 simultaneously, be advantageous to control The radiating of component 40 and normal work.

Preferably, as shown in figure 5, bottom wall 103 tilts down from front to back.So bottom wall 103 can be in smoke collecting chamber 200 Oil smoke plays guide functions, is advantageous to oil smoke and flow to exhaust outlet 201, while reduces the generation of turbulent flow, reduces vibrating noise；This Outside, bottom wall 103 can be used for installing LED, and the light that the LED being so arranged on bottom wall 103 is sent irradiates obliquely, avoids direct projection Into the eye of people.

The exhaust fume collecting hood 1 that embodiment of the present utility model provides need to be fixed on wall.In order to which exhaust fume collecting hood 1 is fixed into wall On, alternatively, as shown in Figure 6 and Figure 7, the second installation through-hole 102 is provided with the front of top plate 10, the first screw is pacified through second Exhaust fume collecting hood 1 is fixed on wall by the dress sound insulation chamber 100 of through hole 102 and first.

When the top of exhaust fume collecting hood 1 is fixed on wall with the first screw, in the front of exhaust fume collecting hood 1, first by first Screw passes through the second installation through-hole 102 and the first sound insulation chamber 100, is then consolidated at the rear portion of top plate 10 with wall with the first screw It is fixed, realize the top of exhaust fume collecting hood 1 and the fixation of wall；In addition, in fixation procedure, the first screw is not passed through cover body 20, keeps away Exempted from caused by the open interior of smoke collecting chamber 200 influence oil smoke flowing and influence cover body 20 sealing effectiveness, prevent oil smoke from Tapping overflows, and then influences the mist extractor effect of lower exhaustion type fume exhauster.

Preferably, as shown in Figure 6 and Figure 7, the positive left and right sides of top plate 10 is equipped with the second installation through-hole 102, i.e., The top of exhaust fume collecting hood 1 can be fixed on wall by the first screw in the left and right sides of top plate 10 so that the top of exhaust fume collecting hood 1 Left and right sides uniform force, and fixation it is more firm.

Specifically, as shown in Figure 5 and Figure 6, three reinforced supports 104, three reinforced supports are provided with the first sound insulation chamber 100 104 upper end is fixedly connected（Such as riveted by self-plugging rivet）In the upper end of top plate 10, lower end is fixedly connected（Such as pass through core pulling riveting Nail riveting）In the lower end of top plate 10, to strengthen the structural strength of top plate 10.

Wherein, the reinforced support 104 of the left and right sides is provided with fixing hole 105, for being entered by the first screw with wall Row is fixed.

The fixation of the top of exhaust fume collecting hood 1 and wall is realized by reinforced support 104, in order that exhaust fume collecting hood 1 firmly fixes Onto wall, it is preferable that need the bottom of exhaust fume collecting hood 1 being also fixed with wall.

In order to realize the fixation of the bottom of exhaust fume collecting hood 1 and wall, alternatively, as shown in Fig. 6 and Fig. 9, in bottom plate 30 just Face is provided with the 3rd installation through-hole 302, and fixing hole 303 is provided with the rear portion of bottom plate 30, and the second screw passes through the 3rd installation through-hole 302 And the second sound insulation chamber 301, the bottom of exhaust fume collecting hood 1 is fixed on wall by fixing hole 303.

When the bottom of exhaust fume collecting hood 1 is fixed on wall with the second screw, in the front of exhaust fume collecting hood 1, first by second Screw passes through the 3rd installation through-hole 302 and the second sound insulation chamber 301, is then consolidated at the rear portion of bottom plate 30 with wall with the second screw It is fixed, and then realize the bottom of exhaust fume collecting hood 1 and the fixation of wall；In addition, in fixation procedure, the second screw is not passed through cover body 20, the flowing that oil smoke is influenceed caused by the open interior of smoke collecting chamber 200 and the sealing effectiveness for influenceing cover body 20 are avoided, prevents oil Cigarette overflows from tapping, and then influences the mist extractor effect of lower exhaustion type fume exhauster.

Preferably, as shown in Fig. 6 and Fig. 9, the 3rd installation through-hole 302 is located at the left and right sides of bottom plate 30, you can in bottom plate The bottom of exhaust fume collecting hood 1 is fixed on wall by 30 left and right sides by the second screw so that the left and right two of the bottom of exhaust fume collecting hood 1 Side uniform force, and fixation is more firm.

Alternatively, as depicted in figs. 1 and 2, the rear of exhaust fume collecting hood 1 is additionally provided with backboard 50, and backboard 50 connects top plate 10 and bottom Plate 30.After backboard 50 is connected with top plate 10 and bottom plate 30, the rear portion of top plate 10, cover body 20 and bottom plate 30 can be blocked so that collection cigarette The dorsal part of cover 1 is more attractive in appearance；Cause that the dorsal part of exhaust fume collecting hood 1 is flat, and to be bonded with wall, wall is fixed to by exhaust fume collecting hood 1 simultaneously On body.

Alternatively, backboard 50 can be fixed with top plate 10 by screw.

Alternatively, backboard 50 carries out socket connection by inserting pawl with bottom plate 30 with slot.Specifically, as shown in Figure 10, carry on the back The bottom of plate 50, which is provided with, inserts pawl 502（Such as four uniform slotting pawls 502）, as shown in figs. 5 and 9, bottom plate 30 is provided with slot 304（Such as four uniform slots 304）, slotting pawl 502 is pluggable to be arrived in slot 304.Inserted it is of course also possible to be provided with backboard 50 Groove, bottom plate 30, which is provided with, inserts pawl.

Alternatively, backboard 50 is also connected with cover body 20.By slotting pawl and inserted with cover body 20 left and right sides such as backboard 50 Groove carries out socket connection.Specifically, as shown in Figure 10, slotting pawl 501 is equipped with the left and right sides of backboard 50（Such as uniform three Insert pawl 501）；As shown in figure 5, the left and right sides of cover body 20 is provided with slot 203（Such as three uniform slots 203）；Such as Fig. 3 and figure Shown in 4, slotting pawl 501 is pluggable to be arrived in slot 203.It is of course also possible to be provided with slot on backboard 50, cover body 20, which is provided with, to be inserted Pawl.

The socket connection mode of backboard 50 and bottom plate 30 and backboard 50 and cover body 20 is simple, easy to implement, and the grafting Connection can position backboard 50, be easy to further carry out the fixation of backboard 50（Screw such as backboard 50 and top plate 10 is fixed）.

Alternatively, bottom plate 30 can be by being welded to connect with cover body 20.It is, of course, also possible to be attached otherwise, Such as screw.

Alternatively, as shown in fig. 6, the lower end of the 3rd sound insulation chamber 202 of the left and right sides of cover body 20 is gradually outside from the top down Tilt, the left and right sides of bottom plate 30 is also gradually outward-dipping from the top down, and the slope of the two matches, and is on the one hand easy to bottom plate 30 left and right sides connects with the lower end of the 3rd sound insulation chamber 202 of both sides, be on the other hand easy to the second sound insulation chamber 301 and the 3rd every Sound chamber 202 connects.

Alternatively, as shown in figure 1, in the present embodiment, it is positive from top to bottom successively that exhaust fume collecting hood 1 also includes being fixed on its Control panel 2, upper door-plate 3 and the smoke deflector 4 of setting.

Although the embodiment disclosed by the utility model is as above, described content is only to readily appreciate the utility model And the embodiment used, it is not limited to the utility model.Technical staff in any the utility model art, On the premise of not departing from the spirit and scope disclosed by the utility model, it can be carried out in the form and details of implementation any Modification and change, but scope of patent protection of the present utility model, must still be defined by appended claims and be defined.

Claims (10)

1. a kind of exhaust fume collecting hood of lower exhaustion type fume exhauster, it is characterised in that the exhaust fume collecting hood includes from top to bottom being fixedly connected sequentially Top plate, cover body and bottom plate, the cover body has the smoke collecting chamber of indent, and the bottom of the smoke collecting chamber is provided with exhaust outlet, the bottom Plate is provided with the air outlet with the location matches of the exhaust outlet.

2. exhaust fume collecting hood according to claim 1, it is characterised in that the top plate has the above the smoke collecting chamber One sound insulation chamber, the front of the top plate are provided with the first installation through-hole, and the exhaust fume collecting hood is provided with control assembly, the control assembly The first sound insulation intracavitary is assemblied in by first installation through-hole.

3. exhaust fume collecting hood according to claim 2, it is characterised in that the front of the top plate is additionally provided with the second installation through-hole, Second installation through-hole is located at the left and right sides of the top plate, and the first screw passes through second installation through-hole and described first The exhaust fume collecting hood is fixed on wall by sound insulation chamber.

4. exhaust fume collecting hood according to claim 1, it is characterised in that the top plate has bottom wall, the bottom wall and the cover Body is encircled into the smoke collecting chamber.

5. exhaust fume collecting hood according to claim 4, it is characterised in that the bottom wall tilts down from front to back.

6. exhaust fume collecting hood according to claim 1, it is characterised in that the bottom plate is U-shaped, and the bottom plate and the cover body Between formed with the second sound insulation chamber.

7. exhaust fume collecting hood according to claim 6, it is characterised in that the front of the bottom plate is provided with the 3rd installation through-hole, institute State the left and right sides that the 3rd installation through-hole is located at the bottom plate, the second screw through the 3rd installation through-hole and described second every The exhaust fume collecting hood is fixed on wall by sound chamber.

8. exhaust fume collecting hood according to claim 1, it is characterised in that the left and right sides of the cover body is formed with the 3rd sound insulation Chamber, the 3rd sound insulation chamber are located at the left and right sides of the smoke collecting chamber.

9. according to the exhaust fume collecting hood described in claim 1 to 8 any one, it is characterised in that the rear of the exhaust fume collecting hood is additionally provided with Backboard, the backboard connect the top plate and the bottom plate.

10. exhaust fume collecting hood according to claim 9, it is characterised in that the backboard is provided with one in the bottom plate Pawl is inserted, another is provided with slot, and the slotting pawl is plugged into the slot.