CN206352519U - Integrated muffler is vented on diesel fork lift truck - Google Patents
Integrated muffler is vented on diesel fork lift truck Download PDFInfo
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- CN206352519U CN206352519U CN201621259438.2U CN201621259438U CN206352519U CN 206352519 U CN206352519 U CN 206352519U CN 201621259438 U CN201621259438 U CN 201621259438U CN 206352519 U CN206352519 U CN 206352519U
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- muffler
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- ventilation mouth
- vented
- noise
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Abstract
The utility model discloses be vented integrated muffler on a kind of diesel fork lift truck, muffler and upper blast pipe are combined, integrated muffler is vented in formation, substituting needs to be arranged on the muffler inside diesel fork lift truck in the prior art, air-flow, by multiple noise-reducing structure, plays the effect of noise reduction in blast pipe.Integrated muffler structure small volume is vented on the utility model, and directly saves muffler link so that free space increase inside internal combustion Counterbalanced forklift, and rear end radiator ventilated environment improves, it is overall to improve internal combustion Counterbalanced forklift performance.
Description
Technical field
The utility model, which is related on a kind of diesel fork lift truck, is vented integrated muffler, belongs to internal-combustion engine vent-pipe technical field.
Background technology
Internal combustion Counterbalanced forklift is dried by engine fan installed above, and is passed through by the wind blown out installed in vehicle
The radiator heat-dissipation of rear end.
But existing internal combustion Counterbalanced forklift is limited, it is necessary to install a noise reduction additional again behind radiator due to structure
Device, the muffler volume is larger, blocks the air circulation in radiator, influences radiating effect.
Simultaneously because internal combustion Counterbalanced forklift operating mode needs, what is be commonly designed is extremely compact, and inner space is limited, in rear end
Many spaces can then be taken by installing the larger muffler of volume additional, have influence on the length of fork truck, so as to influence fork truck in the confined space
Interior passes through property.
The content of the invention
The present invention is to solve internal combustion Counterbalanced forklift to install muffler additional inside the balance weight of rear end, so as to have impact on radiator
Ventilation condition so that sink-efficiency reduce, increase engine power consumption the problem of, while solve muffler seriously take in itself
Balance weight inner space so that balance weight volume increases, vehicle body is elongated, the problem of being deteriorated in the confined space by property.
To solve the above problems, the technical solution of the utility model is as follows：
Integrated muffler is vented on a kind of diesel fork lift truck, muffler and upper blast pipe are combined, including it is upper blast pipe, interior
There is ventilation mouth hush pipe, exhaust outer tube, air inlet pipe, the upper blast pipe pipe lower end, and tail end closing allows air-flow to pass through ventilation mouth,
With sound deadening；Interior hush pipe is vertically positioned between blast pipe and air inlet pipe, the uniform ventilation mouth of two sections, upper and lower ends
Mouth closing, allows air-flow to pass through ventilation mouth, plays sound deadening；Perforate after outer tube upper end closed is vented, perforate size is only for insertion
Upper blast pipe, plays guiding air-flow pressurize sound deadening；Air inlet pipe is to be vertically positioned at the lower section of interior hush pipe, and pipe upper end has ventilative
Mouthful, upper port closing allows air-flow to pass through ventilation mouth, with sound deadening, tail end opening connection engine exhaust.
Integrated muffler is vented as a kind of improvement of the present utility model, on the diesel fork lift truck also including at least one to disappear
There is ventilation mouth on sound bowl, noise-damping bowl, interior hush pipe is passed through from noise-damping bowl；Air-flow passes through ventilation mouth, plays sound deadening.
Being vented integrated muffler as a kind of improvement of the present utility model, on the diesel fork lift truck includes 2 porous noise reductions
Ventilation mouth latus rectum gross area 500-2000mm on bowl and 1 less porous noise-damping bowl, porous noise-damping bowl2, ventilation mouth on less porous noise-damping bowl
Latus rectum gross area 0-1600mm2；Most of air-flow is needed by porous noise-damping bowl, it is contemplated that the problem of back pressure occurs too high,
So there is small part air-flow to be discharged by less porous noise-damping bowl, more preferable erasure effect is played.
As a kind of improvement of the present utility model, the muffler also includes upper shield and heat shield, and upper shield is looped around
Upper blast pipe periphery, heat shield upper end is connected with the lower end of upper shield, exhaust outer tube periphery is looped around, for avoiding personnel and temperature
The higher exhaust outer tube of degree is directly contacted, and plays protective action.
As a kind of improvement of the present utility model, the muffler also includes support plate, and support plate is located at outside heat shield and exhaust
Between pipe, supported as the interval of heat shield and exhaust outer tube；The support plate quantity is 4, is evenly distributed on exhaust outer tube,
Supported as the interval of heat shield and exhaust outer tube, reduce contact area, reduce heat transfer, reduce external temperature.
As a kind of improvement of the present utility model, the muffler also includes mounting flange, mounting flange and exhaust outer tube
Lower end is connected, and is used as being fixedly connected.
As it is of the present utility model it is a kind of improve, blast pipe is internal diameter 40-45mm on the muffler, wall thickness 1-2mm without
Seam Steel Pipe Heat is bent into, the uniform ventilation mouth in pipe lower end, ventilation mouth latus rectum gross area 500-2000mm2；The upper shield is thickness
1-2mm steel plate twists shaping, upper end bore 70mm, lower end bore 120mm, height 140-160mm；The support plate is thickness 1-
2mm steel plate bending shaping；Cans after the heat shield uniformly punches for thickness 1-2mm steel plate, punch aperture 5-
7mm, cans pipe external diameter 120mm, height 450-500mm；The interior hush pipe is internal diameter 40-45mm, wall thickness 1-2mm nothing
Stitch steel pipe, the uniform ventilation mouth of two sections, the ventilation mouth latus rectum gross area respectively reaches 500-2000mm at two2；The noise-damping bowl
It is molded for thickness 1-2mm steel plate bending, upper end bore 46mm, lower end bore 117mm, height 38-42mm；The exhaust outer tube
For internal diameter 117mm, wall thickness 1-2mm seamless steel pipes are made, height 500-600mm；The air inlet pipe is internal diameter 40-45mm, wall thickness
1-2mm seamless steel pipe hot bendings are made, the uniform ventilation mouth in pipe upper end, ventilation mouth latus rectum gross area 500-2000mm2；The Method for Installation
Orchid is thickness 9-11mm steel plate excision formings, above using diameter 120mm as reference circle, three of uniform a diameter of 10-12mm
Aperture.
Being vented integrated muffler as a kind of improvement of the present utility model, on the diesel fork lift truck also includes reinforcement, even
Run in gas outer tube and mounting flange, for strengthening supporting role.
As a kind of improvement of the present utility model, the reinforcement is thickness 4-6mm steel plate excision formings.
Container internal circulation is poorer, and exhaust back pressure is higher, higher exhaust back pressure（In the range of permissible value）It can carry
High erasure effect；And collision frequency is more during transfer voice, decay it is more severe；The utility model sets multiple disappear
Sound structure, is that, in order to reach increase exhaust back pressure, and the obstacle increased above transfer voice path reaches the effect of multiple reflections
Really.
Relative to prior art, advantage of the present utility model is as follows, the integrated muffler structure small volume of exhaust on this, and directly
Connect and save muffler link so that free space increase inside internal combustion Counterbalanced forklift, and rear end radiator ventilated environment improves,
It is overall to improve internal combustion Counterbalanced forklift performance.
Brief description of the drawings
Fig. 1 is the upper integrated muffler appearance assumption diagram of exhaust.
Fig. 2 is the upper integrated muffler sectional view of exhaust.
In figure：1 it is the integrated muffler of upper exhaust, 2 be upper blast pipe, 3 be upper shield, 4 be support plate, 5 be heat shield, 6 is
Interior hush pipe, 7 be porous noise-damping bowl, 8 be less porous noise-damping bowl, 9 be exhaust outer tube, 10 be air inlet pipe, 11 be mounting flange, 12 be
Reinforcement.
Embodiment
Embodiment 1：Referring to Fig. 1 and Fig. 2, integrated muffler 1 is vented on a kind of diesel fork lift truck, it is characterised in that：It is described to disappear
Sound device includes upper blast pipe 2, interior hush pipe 6, exhaust outer tube 9, air inlet pipe 10, and there are ventilation mouth, tail in the upper pipe lower end of blast pipe 2
End seal is closed, and allows air-flow to pass through ventilation mouth, with sound deadening；Interior hush pipe 6 be vertically positioned at blast pipe 2 and air inlet pipe 10 it
Between, the uniform ventilation mouth of two sections, upper and lower ends mouthful closing allows air-flow to pass through ventilation mouth, plays sound deadening；It is vented outer tube 9
Perforate after upper end closed, perforate size only for the upper blast pipe 2 of insertion, plays guiding air-flow pressurize sound deadening；Air inlet pipe 10 is
The lower section of interior hush pipe 6 is vertically positioned at, there is ventilation mouth pipe upper end, and upper port closing allows air-flow to pass through ventilation mouth, made with noise reduction
With tail end opening connection engine exhaust.
Embodiment 2：Referring to Fig. 1 and Fig. 2, as a kind of improvement of the present utility model, the muffler also includes at least one
There is ventilation mouth on noise-damping bowl 7,8, noise-damping bowl 7,8, interior hush pipe 6 is passed through from noise-damping bowl 7,8；Air-flow passes through ventilation mouth, plays
Sound deadening.Remaining structure and advantage are identical with embodiment 1.
Embodiment 3：Referring to Fig. 1 and Fig. 2, as it is of the present utility model it is a kind of improve, the muffler includes 2 and porous disappeared
Ventilation mouth latus rectum gross area 500-2000mm on sound 7 and 1 less porous noise-damping bowls 8 of bowl, porous noise-damping bowl 72, preferred value is 1356
mm2, ventilation mouth latus rectum gross area 0-1600mm on less porous noise-damping bowl 82, preferred value is 848 mm2；Most of air-flow needs to pass through
Porous noise-damping bowl, it is contemplated that the problem of back pressure occurs too high, so there is small part air-flow to be discharged by less porous noise-damping bowl, is played
More preferable erasure effect.Remaining structure and advantage are identical with embodiment 1.
Embodiment 4：Referring to Fig. 1 and Fig. 2, as a kind of improvement of the present utility model, the muffler also includes upper shield 3
With heat shield 5, upper shield 3 is looped around the periphery of blast pipe 2, and the upper end of heat shield 5 is connected with the lower end of upper shield 3, the row of being looped around
The periphery of gas outer tube 9, is directly contacted, a protective action for the exhaust outer tube that avoids personnel higher with temperature.Remaining structure and excellent
Point is identical with embodiment 1.
Embodiment 5：Referring to Fig. 1 and Fig. 2, as a kind of improvement of the present utility model, the muffler also includes support plate 4,
Support plate 4 is located between heat shield 5 and exhaust outer tube 9, is supported as the interval of heat shield 5 and exhaust outer tube 9, reduces contact surface
Product, reduces heat transfer, reduces external temperature.Remaining structure and advantage are identical with embodiment 1.
Embodiment 6：Referring to Fig. 1 and Fig. 2, as a kind of improvement of the present utility model, the muffler also includes Method for Installation
Orchid 11, mounting flange 11 is connected with exhaust outer tube 9 lower end, is used as being fixedly connected.Remaining structure and advantage and embodiment 1 are complete
It is exactly the same.
Embodiment 7：Referring to Fig. 1 and Fig. 2, as a kind of improvement of the present utility model, blast pipe 2 is internal diameter on muffler
40-45mm, wall thickness 1-2mm seamless steel pipe hot bendings are made, the uniform ventilation mouth in pipe lower end, ventilation mouth latus rectum gross area 500-
2000mm2, preferred value is 1695 mm2；The upper shield 3 twists shaping for thickness 1-2mm steel plate, upper end bore 70mm, under
Port footpath 120mm, height 140-160mm；The support plate 4 is molded for thickness 1-2mm steel plate bending；The heat shield 5 is thickness
Cans after the 1-2mm uniform punching of steel plate are spent, aperture 5-7mm, cans pipe external diameter 120mm, height 450- is punched
500mm；The interior hush pipe 6 is internal diameter 40-45mm, wall thickness 1-2mm seamless steel pipe, the uniform ventilation mouth of two sections, at two
The ventilation mouth latus rectum gross area respectively reaches 500-2000mm2, preferred value is 1055 mm2；The noise-damping bowl 7,8 is thickness 1-2mm
Steel plate bending shaping, upper end bore 46mm, lower end bore 117mm, height 38-42mm；The exhaust outer tube 9 is internal diameter
117mm, wall thickness 1-2mm seamless steel pipes are made, height 500-600mm；The air inlet pipe 10 is internal diameter 40-45mm, wall thickness 1-2mm
Seamless steel pipe hot bending is made, the uniform ventilation mouth in pipe upper end, ventilation mouth latus rectum gross area 500-2000mm2, preferred value is 1695
mm2；The mounting flange 11 is thickness 9-11mm steel plate excision formings, above using diameter 120mm as reference circle, uniform diameter
For 10-12mm three apertures.
As a kind of improvement of the present utility model, the muffler 1 also includes reinforcement 12, connection exhaust outer tube 9 and peace
Flange 11 is filled, for strengthening supporting role；The reinforcement 12 is thickness 4-6mm steel plate excision formings.Remaining structure and advantage
It is identical with embodiment 1.
The utility model can also be by least one in technical characteristic described in embodiment 2,3,4,5,6,7 and embodiment 1
Combination forms new embodiment.
It should be noted that above-described embodiment is only preferred embodiment of the present utility model, not for limiting this reality
With new protection domain, the equivalent substitution or replacement made on the basis of the above belong to protection model of the present utility model
Enclose.
Claims (7)
1. integrated muffler is vented on a kind of diesel fork lift truck（1）, it is characterised in that：The muffler includes upper blast pipe（2）, it is interior
Hush pipe（6）, exhaust outer tube（9）, air inlet pipe（10）, the upper blast pipe（2）There is ventilation mouth pipe lower end, and tail end closing inside disappears
Sound tube（6）It is vertically positioned at blast pipe（2）With air inlet pipe（10）Between, the uniform ventilation mouth of two sections, upper and lower ends mouthful closing,
It is vented outer tube（9）Perforate after upper end closed, perforate size is only for the upper blast pipe of insertion（2）, air inlet pipe（10）For in being vertically positioned at
Hush pipe（6）Lower section, there is a ventilation mouth pipe upper end, upper port closing, tail end opening connection engine exhaust.
2. integrated muffler is vented on diesel fork lift truck according to claim 1, it is characterised in that：The muffler also includes
At least one noise-damping bowl（7,8）, noise-damping bowl（7,8）On have ventilation mouth, interior hush pipe（6）From noise-damping bowl（7,8）In pass through.
3. integrated muffler is vented on diesel fork lift truck according to claim 2, it is characterised in that：The muffler includes 2
Individual porous noise-damping bowl（7）With 1 less porous noise-damping bowl（8）, porous noise-damping bowl（7）Upper ventilation mouth latus rectum gross area 500-2000mm2,
Less porous noise-damping bowl（8）Upper ventilation mouth latus rectum gross area 0-1600mm2。
4. it is vented integrated muffler on the diesel fork lift truck according to claim any one of 1-3, it is characterised in that：The noise reduction
Device also includes upper shield（3）And heat shield（5）, upper shield（3）It is looped around blast pipe（2）Periphery, heat shield（5）Upper end with it is upper
Shield（3）Lower end be connected, be looped around exhaust outer tube（9）Periphery.
5. integrated muffler is vented on diesel fork lift truck according to claim 4, it is characterised in that：The muffler also includes
Support plate（4）, support plate（4）Positioned at heat shield（5）With exhaust outer tube（9）Between, it is used as heat shield（5）With exhaust outer tube（9）Between
Every support.
6. integrated muffler is vented on diesel fork lift truck according to claim 5, it is characterised in that：The muffler also includes
Mounting flange（11）, mounting flange（11）With exhaust outer tube（9）Lower end is connected.
7. integrated muffler is vented on diesel fork lift truck according to claim 6, it is characterised in that：The upper blast pipe（2）
It is made up of seamless steel pipe hot bending, the uniform ventilation mouth in pipe lower end, ventilation mouth latus rectum gross area 500-2000mm2；The upper shield（3）
Twisted shaping for steel plate；The support plate（4）It is molded for steel plate bending；The heat shield（5）It is curled into after uniformly being punched for steel plate
Type；The interior hush pipe（6）For seamless steel pipe, the uniform ventilation mouth of two sections, ventilation mouth latus rectum gross area 500-2000mm2；
The noise-damping bowl（7,8）It is molded for steel plate bending；The exhaust outer tube（9）It is made up of seamless steel pipe；The air inlet pipe（10）For
Seamless steel pipe hot bending is made, the uniform ventilation mouth in pipe upper end, ventilation mouth latus rectum gross area 500-2000mm2；The mounting flange
（11）For steel plate excision forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621259438.2U CN206352519U (en) | 2016-11-23 | 2016-11-23 | Integrated muffler is vented on diesel fork lift truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621259438.2U CN206352519U (en) | 2016-11-23 | 2016-11-23 | Integrated muffler is vented on diesel fork lift truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206352519U true CN206352519U (en) | 2017-07-25 |
Family
ID=59347695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621259438.2U Active CN206352519U (en) | 2016-11-23 | 2016-11-23 | Integrated muffler is vented on diesel fork lift truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206352519U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412595A (en) * | 2018-05-11 | 2018-08-17 | 杭叉集团股份有限公司 | A kind of fork truck high-position exhaust pipe |
| CN109723521A (en) * | 2019-03-01 | 2019-05-07 | 冀凯河北机电科技有限公司 | Gas engine muffler tail pipe |
| CN114174644A (en) * | 2019-07-23 | 2022-03-11 | 天纳克汽车经营有限公司 | Vehicle exhaust system |
-
2016
- 2016-11-23 CN CN201621259438.2U patent/CN206352519U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412595A (en) * | 2018-05-11 | 2018-08-17 | 杭叉集团股份有限公司 | A kind of fork truck high-position exhaust pipe |
| CN109723521A (en) * | 2019-03-01 | 2019-05-07 | 冀凯河北机电科技有限公司 | Gas engine muffler tail pipe |
| CN114174644A (en) * | 2019-07-23 | 2022-03-11 | 天纳克汽车经营有限公司 | Vehicle exhaust system |
| CN114174644B (en) * | 2019-07-23 | 2023-02-28 | 天纳克汽车经营有限公司 | Vehicle exhaust system |
| US11614009B2 (en) | 2019-07-23 | 2023-03-28 | Tenneco Automotive Operating Company Inc. | Vehicle exhaust system |
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