CN207686879U - A kind of forklift engine gas handling system with muffler - Google Patents
A kind of forklift engine gas handling system with muffler Download PDFInfo
- Publication number
- CN207686879U CN207686879U CN201721731845.3U CN201721731845U CN207686879U CN 207686879 U CN207686879 U CN 207686879U CN 201721731845 U CN201721731845 U CN 201721731845U CN 207686879 U CN207686879 U CN 207686879U
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- air inlet
- inlet pipe
- air filter
- muffler
- car body
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Abstract
The utility model discloses a kind of forklift engine gas handling systems with muffler, including muffler, air filter, car body air inlet pipe, connecting tube and air filter efferent duct.The muffler is VERTICAL TUBE and the L-shaped syphon shape cavity that horizontal tube is constituted, joint noise reduction device between the air filter air inlet pipe and car body air inlet pipe, when work, air enters muffler by car body air inlet pipe, enter air filter after the compression in the high-end gradually smaller channel to low side of muffler, it is delivered air in engine combustion room by air filter efferent duct again, to reduce inflow noise.The utility model reaches realization erasure effect by the variation of muffler cavity volume, and compared to without admission air silencer forklift engine gas handling system, driver lower noise 2dB or more in one's ear improves pilot control comfort.
Description
Technical field
The utility model belongs to fork truck technical field, specifically, it is related to a kind of forklift engine with muffler
Gas handling system.
Background technology
With the further promotion that environment protection emission requires, engineering machinery engine noise control is more difficult, this is very big
The increasing of truck driver noise in one's ear is caused in degree, larger noise in one's ear causes body and mind to injure fork truck user, influences
The riding manipulation comfort for having arrived fork truck, also violated product it is people-oriented, with user use for be oriented to thought, to a certain degree
On also constrain the development of entire Forklift Industry.
In order to reduce forklift engine inflow noise, it is commonly provided with admission air silencer, but existing admission air silencer is main
It has the following problems：One is constrained to arrangement space, and existing admission air silencer structural volume is limited, erasure effect is poor；
Second is that existing admission air silencer technical solution mostly uses the technical solutions such as insertion tube, intracavitary partition board, complex process, production cost
Height, manufacture efficiency are low；It is mostly metal weldment structure to be limited existing muffler by process conditions simultaneously, presentation quality it is coarse and
Product weight is unfavorable for vehicle light-weight design.
Utility model content
In order to reduce forklift engine inflow noise, the utility model provides a kind of forklift engine with muffler
Gas handling system.
A kind of forklift engine gas handling system with muffler, including air filter 2, car body air inlet pipe 3, connecting tube 4, sky
Efferent duct 5 is filtered, the air filter 2 is equipped with air filter air inlet pipe 21 and air filter escape pipe 22, one end of the air filter efferent duct 5 and hair
The air inlet mouth of pipe 9 of motivation connects, and the other end of air filter efferent duct 5 is connect with air filter escape pipe 22.
Muffler 1 is equipped between the air filter air inlet pipe 21 and car body air inlet pipe 3, the muffler 1 is VERTICAL TUBE and water
The L-shaped syphon shape cavity that flat pipe is constituted, VERTICAL TUBE upper end are equipped with noise reduction air inlet pipe 11, noise reduction escape pipe are equipped on the upside of horizontal tube
12, set that there are one inner sunken faces 13 in VERTICAL TUBE.
The noise reduction escape pipe 12 is directly inserted with 4 one end of connecting tube and is connect, the noise reduction air inlet pipe 11 and car body air inlet
One end of pipe 3 directly inserts connection, and the car body air inlet pipe 3 is connect with car body air inlet.
When work, air enters muffler 1 by car body air inlet 7 by car body air inlet pipe 3, is arrived by muffler 1 is high-end
Enter air filter 2 after the compression in the gradually smaller channel of low side, then engine charge nozzle 9 is entered by air filter efferent duct 5
It delivers air in engine combustion room, to reduce inflow noise.
The technical solution further limited is as follows：
The axial line of 11 endoporus of noise reduction air inlet pipe and the angle of the upper plane of 1 VERTICAL TUBE upper end of muffler are α.
The angle is α=90 °~145 °.
The noise reduction air inlet pipe 11, the diameter of noise reduction escape pipe 12 are identical, and annular projection is equipped at nozzle.
The outer housing of the air filter 2 is equipped with air filter fixed frame 23, and the air filter fixed frame 23 is rolled over for a few shape thin plates
Comer pieces, both ends are arc plate, and arc plate is welded on the cylindric iron shell of air filter 2.The fixing bracket 23 is equipped with two
A through-hole, equal welded nut 231 on two through-holes, and nut 231 is located on the inside of fixing bracket 23.
The connecting tube 4 is rubber tube, and one end of connecting tube 4 is sleeved on the annular projection of 12 nozzle of noise reduction escape pipe,
The other end of connecting tube 4 is sleeved on the nozzle of air filter air inlet pipe 21, and end hose clamp 6 is locked herein.
The car body air inlet pipe 3 is rubber tube, and one end of car body air inlet pipe 3 is sleeved on the ring-type of 11 nozzle of noise reduction air inlet pipe
In protrusion, the other end of car body air inlet pipe 3 is sleeved in the lower end outlet of car body air inlet 7, and end is solid with the locking of hose clamp 6 herein
It is fixed.
The air filter efferent duct 5 is rubber tube, and when installation, the both ends of air filter efferent duct 5 are locked with hose clamp 6.
The advantageous effects of the utility model are：
(1) realization erasure effect is reached by the variation of muffler cavity volume, is sent out compared to the fork truck without admission air silencer
Motivation gas handling system, driver lower noise 2dB or more in one's ear, improves pilot control comfort.
(2) muffler uses blow once-through moulding, simple production process, at low cost, while can be according to vehicle body space
Free posing designs, and space availability ratio is high.
(3) the mellow and full fineness of muffler product appearance, while product weight is light, is conducive to fork truck vehicle light-weight design.
(4) it is not required to additionally increase hose clamp fastening when muffler structure is connected with related sebific duct, while entire gas handling system exists
Installed on vehicle it is more quick and easy, improve vehicle production, maintenance efficiency.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the utility model muffler longitudinal sectional view.
Fig. 3 is the A direction views of Fig. 2.
Fig. 4 is the utility model air filter structural schematic diagram.
Fig. 5 is the utility model air filter fixed rack structure schematic diagram
Fig. 6 is the utility model use state partial schematic diagram.
Serial number in upper figure：Muffler 1, noise reduction air inlet pipe 11, noise reduction escape pipe 12, inner sunken face 13, air filter 2, air filter
Air inlet pipe 21, air filter escape pipe 22, air filter fixed frame 23, nut 231, car body air inlet pipe 3, connecting tube 4, air filter efferent duct 5, larynx
Hoop 6, car body air inlet 7, car body air filter mounting bracket 8, engine charge nozzle 9.
Specific implementation mode
Below in conjunction with the accompanying drawings, by embodiment, the utility model is described in further detail.
Embodiment one
Referring to Fig. 1 and Fig. 6, a kind of forklift engine gas handling system with muffler, including muffler 1, air filter 2,
Car body air inlet pipe 3, connecting tube 4, air filter efferent duct 5, hose clamp 6.The air filter 2 is equipped with air filter air inlet pipe 21 and air filter escape pipe
22, one end of the air filter efferent duct 5 is connect with engine charge nozzle 9, the other end and the air filter escape pipe of air filter efferent duct 5
22 connections.Joint noise reduction device 1 between the air filter air inlet pipe 21 and car body air inlet pipe 3.
Referring to Fig. 2 and Fig. 3, the muffler 1 is the L-shaped syphon shape cavity that VERTICAL TUBE and horizontal tube are constituted, in VERTICAL TUBE
End is equipped with noise reduction air inlet pipe 11, and noise reduction escape pipe 12 is equipped on the upside of horizontal tube.The noise reduction escape pipe 12 by connecting tube 4 with
Air filter air inlet pipe 21 connects, and the noise reduction air inlet pipe 11 is connect by car body air inlet pipe 3 with car body air inlet 7.The noise reduction into
The axial line of 11 endoporus of tracheae and the angle of the upper plane of 1 VERTICAL TUBE upper end of muffler are α, and angle is α=110 °.It is described to disappear
Sound air inlet pipe 11, the diameter of noise reduction escape pipe 12 are identical, and annular projection is equipped at nozzle.
The car body air inlet pipe 3, connecting tube 4 and air filter efferent duct 5 are rubber tube.
The connecting tube 4 and 21 junction of air filter air inlet pipe, car body air inlet pipe 3 and 7 junction of car body air inlet, air filter are defeated
The both ends of outlet pipe 5 are fixed by hose clamp 6.The muffler air inlet pipe 11 directly inserts connection with car body air inlet pipe 3, described to disappear
Sound device escape pipe 12 directly inserts connection with connecting tube 4.
Referring to Fig. 2, set in the VERTICAL TUBE of the muffler 1 there are one inner sunken face 13, for avoiding inside fork truck body
Heat source or correlation interference component.
Referring to Fig. 4 and Fig. 5, the outer housing of the air filter 2 is equipped with air filter fixed frame 23, and the air filter fixed frame 23 is
A few shape light sheet bending parts, both ends are arc plate, and arc plate is welded on the cylindric iron shell of air filter 2.The fixed branch
It is set on frame 23 there are two through-hole, equal welded nut 231 on two through-holes, and nut 231 is located on the inside of fixing bracket 23.
Referring to Fig. 6, the muffler 1 and air filter 2 are fixed by air filter fixed frame 23 and car body air filter mounting bracket 8 and are connected
It connects, completes installation of the entire gas handling system on fork truck body.
When work, air enters muffler 1 by car body air inlet 7 by car body air inlet pipe 3, is arrived by muffler 1 is high-end
Enter air filter 2 after the compression in the gradually smaller channel of low side, then engine intake 9 is entered by air filter efferent duct 5, after
And deliver air in engine combustion room, to reduce inflow noise.
The above content not makes any form of restriction the structure, shape of the utility model.It is every according to this practicality
It is new to still fall within this practicality to any simple modification, equivalent change and modification made by above example for novel technical spirit
In the range of type technical solution.
Claims (8)
1. a kind of forklift engine gas handling system with muffler, including air filter (2), car body air inlet pipe (3), connecting tube
(4), air filter efferent duct (5), the air filter (2) is equipped with air filter air inlet pipe (21) and air filter escape pipe (22), the air filter are defeated
One end of outlet pipe (5) is connect with engine charge nozzle (9), and the other end and the air filter escape pipe (22) of air filter efferent duct (5) connect
It connects；
It is characterized in that：Muffler (1), the muffler are equipped between the air filter air inlet pipe (21) and car body air inlet pipe (3)
(1) it is L-shaped syphon shape cavity that VERTICAL TUBE and horizontal tube are constituted, VERTICAL TUBE upper end is equipped with noise reduction air inlet pipe (11), on horizontal tube
Side is equipped with noise reduction escape pipe (12), is set in VERTICAL TUBE there are one inner sunken face (13), the noise reduction escape pipe (12) passes through connection
Pipe (4) is connect with air filter air inlet pipe (21), and the noise reduction air inlet pipe (11) passes through car body air inlet pipe (3) and car body air inlet (7)
Connection；
When work, air enters muffler (1) by car body air inlet (7) by car body air inlet pipe (3), by muffler (1) height
Hold and enter air filter (2) after the compression in the gradually smaller channel of low side, then by air filter efferent duct (5) enter engine into
Gas tube orifice (9), then delivers air in engine combustion room.
2. a kind of forklift engine gas handling system with muffler according to claim 1, it is characterised in that：It is described to disappear
The axial line of sound air inlet pipe (11) endoporus and the angle of the upper plane of muffler (1) VERTICAL TUBE upper end are α.
3. a kind of forklift engine gas handling system with muffler according to claim 2, it is characterised in that：The folder
Angle is α=90 °~145 °.
4. a kind of forklift engine gas handling system with muffler according to claim 1, it is characterised in that：It is described to disappear
Sound air inlet pipe (11), the diameter of noise reduction escape pipe (12) are identical, and annular projection is equipped at nozzle.
5. a kind of forklift engine gas handling system with muffler according to claim 1, it is characterised in that：The sky
The outer housing of filter (2) is equipped with air filter fixed frame (23), and the air filter fixed frame (23) is a few shape light sheet bending parts, both ends
For arc plate, arc plate is welded on the cylindric iron shell of air filter (2)；It is set on the fixed frame (23) there are two through-hole,
Equal welded nut (231) on two through-holes, and nut (231) is located on the inside of fixed frame (23).
6. a kind of forklift engine gas handling system with muffler according to claim 4, it is characterised in that：The company
It is rubber tube to take over (4), and one end of connecting tube (4) is sleeved on the annular projection of noise reduction escape pipe (12) nozzle, connecting tube (4)
The other end be sleeved on the nozzle of air filter air inlet pipe (21), and herein end be locked with hose clamp (6).
7. a kind of forklift engine gas handling system with muffler according to claim 4, it is characterised in that：The vehicle
Body air inlet pipe (3) is rubber tube, and one end of car body air inlet pipe (3) is sleeved on the annular projection of noise reduction air inlet pipe (11) nozzle,
The other end of car body air inlet pipe (3) is sleeved in the lower end outlet of car body air inlet (7), and end is solid with hose clamp (6) locking herein
It is fixed.
8. a kind of forklift engine gas handling system with muffler according to claim 1, it is characterised in that：The sky
It is rubber tube to filter efferent duct (5), and when installation, the both ends of air filter efferent duct (5) are locked with hose clamp (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721731845.3U CN207686879U (en) | 2017-12-13 | 2017-12-13 | A kind of forklift engine gas handling system with muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721731845.3U CN207686879U (en) | 2017-12-13 | 2017-12-13 | A kind of forklift engine gas handling system with muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686879U true CN207686879U (en) | 2018-08-03 |
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|---|---|---|---|
| CN201721731845.3U Active CN207686879U (en) | 2017-12-13 | 2017-12-13 | A kind of forklift engine gas handling system with muffler |
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| CN (1) | CN207686879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989724A (en) * | 2017-12-13 | 2018-05-04 | 安徽合力股份有限公司 | A kind of forklift engine gas handling system with muffler |
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2017
- 2017-12-13 CN CN201721731845.3U patent/CN207686879U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989724A (en) * | 2017-12-13 | 2018-05-04 | 安徽合力股份有限公司 | A kind of forklift engine gas handling system with muffler |
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