CN207892743U - A kind of forklift engine gas handling system with noise reduction branch pipe - Google Patents
A kind of forklift engine gas handling system with noise reduction branch pipe Download PDFInfo
- Publication number
- CN207892743U CN207892743U CN201820083439.9U CN201820083439U CN207892743U CN 207892743 U CN207892743 U CN 207892743U CN 201820083439 U CN201820083439 U CN 201820083439U CN 207892743 U CN207892743 U CN 207892743U
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- Prior art keywords
- air filter
- air
- pipe
- air inlet
- branch pipe
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of forklift engine gas handling systems with noise reduction branch pipe, including air filter air inlet pipe, air cleaner, engine air inlet tube.The air filter air inlet pipe is the canvas filler rubber pipe of global formation, air filter air inlet pipe is equipped with noise elimination branch pipe, the noise elimination branch pipe carries out noise reduction process to fork truck gas handling system, compared to original forklift engine gas handling system, vehicle power per liter grade is reduced to 103dB from 106dB, vehicle sound pressure level is reduced to 86.2dB from 88.4dB, reduces driver's noise in one's ear, improves pilot control comfort.The air cleaner is equipped with air filter first support, the groove of air filter first support can coordinate with the annular boss on air filter cylinder, the position that the two fastens straight line can adjust and can also be adjusted by rotation in an axial direction, to obtain different spatial positions, ensure design requirement.
Description
Technical field
The utility model belongs to fork truck technical field, starts specifically, it is related to a kind of fork truck with noise reduction branch pipe
Machine gas handling system.
Background technology
In order to reduce forklift engine inflow noise, fork truck is commonly provided with admission air silencer.But existing admission air silencer
It is primarily present problems with：It is limited to arrangement space, existing admission air silencer erasure effect is poor；Existing air inlet noise reduction
Device material variety is various, difficult to install；Existing muffler is mostly metal weldment structure simultaneously, and presentation quality is coarse and product is stupid
Weight, is unfavorable for vehicle light-weight design and arrangement.
Meanwhile it is that cannot be adjusted that existing air cleaner, which is all integral type air filter i.e. mounting bracket and air filter itself,
, this results in different vehicles to need to develop different air filters, to adapt to the arrangement of vehicle.Above-mentioned two problems are in certain journey
Also the development of entire Forklift Industry is constrained on degree.
Utility model content
In order to reduce forklift engine inflow noise and solve the problems, such as that air cleaner installation is inconvenient to adjust, this practicality
It is novel to provide a kind of forklift engine gas handling system with noise reduction branch pipe.
A kind of forklift engine gas handling system with noise reduction branch pipe, including air filter air inlet pipe 1, air cleaner 3, start
Machine air inlet pipe 4.The air cleaner 3 be equipped with air filter cylinder 31 and air filter first support 32, air filter cylinder 31 be equipped with air filter into
One end of gas port 311 and air filter gas outlet 312, the engine air inlet tube 4 is connect with engine intake 5, engine charge
The other end of pipe 4 is connect with air filter gas outlet 312, and air filter is connected between the air filter air inlet 311 and overhead guard air inlet 6
Air inlet pipe 1.
The air filter air inlet pipe 1 is the canvas filler rubber pipe of global formation, and the both ends of air filter air inlet pipe 1 are respectively equipped with air filter pipe
The middle part of air inlet 11 and air filter pipe gas outlet 14, air filter air inlet pipe 1 is L-shaped pipe, and the vertical section of the L-shaped pipe, which is equipped with, eliminates the noise
Branch pipe 13.The air filter pipe air inlet 11 is connected directly with overhead guard air inlet 6, air filter pipe gas outlet 14 and air filter
Import 311 connects.
When work, air enters air filter air inlet pipe 1 by overhead guard air inlet 6, and an air sound wave part for entrance, which enters, to disappear
Sound branch pipe 13, then by noise elimination branch pipe 13 reflect and air filter air inlet pipe 1 in another part of air sound wave be superimposed and decay empty
The intensity of gas sound wave, plays noise elimination function.Air after noise elimination passes through air cleaner 3, is entered by engine air inlet tube 4
Engine intake 5 then delivers air in engine combustion room.
The technical solution further limited is as follows：
The noise elimination branch pipe 13 be bending canvas filler rubber pipe, 13 center line length of run L=200 of noise elimination branch pipe~
The end position of 300mm, noise elimination branch pipe 13 are closed form.
The noise elimination branch pipe 13 is equipped with the horn mouth 131 that transition is connect with the junction of the vertical section of the L-shaped pipe.
The L-shaped pipe at 1 middle part of the air filter air inlet pipe is reducer pipe, and the caliber of horizontal end pipe is more than the caliber of vertical section.
The air cleaner 3 is equipped with air filter cylinder 31 and air filter first support 32, and the air filter first support 32 is band
There are pedestal and the cyclic annular rubber member of opening, is set on air filter cylinder 31.It is equipped with below the opening of the air filter first support 32
Embedded nut 322, upper opening portion are equipped with positive stop lug boss 324, locking spring 323, locking spring 323 are housed below positive stop lug boss
Centre is equipped with hexagon socket head cap screw 326.Gasket 325 is housed between locking spring 323 and hexagon socket head cap screw 326.
The annular internal of the air filter first support 32 opens the groove 327 for 2mm, the air filter cylinder 31 there are five depth
On there are 5~12 width to be the annular boss 314 of 2mm, the groove 327 matches with annular boss 314, air filter first support
32 when being sleeved on air filter cylinder 31, can select matched annular boss 314, air filter first support according to the needs of installation space
32 can surround the position that annular boss 314 rotates to needs.
The both ends of the pedestal of the air filter first support 32 are respectively equipped with the first kidney slot 321 and the second kidney slot 328, and
The length direction of the length direction of first kidney slot 321 and the second kidney slot 328 is mutually perpendicular to.
Outer circle is equipped with the annular protrusion 313 of 2mm high at the air filter gas outlet 312.
The hose clamp 2 that the both ends of the air filter air inlet pipe 1 and engine air inlet tube 4 are locked when being respectively equipped with for connecting.
The advantageous effects of the utility model are：
(1) noise reduction process is carried out to fork truck gas handling system by the noise elimination branch pipe in air filter air inlet pipe, compares original fork
Car engine gas handling system, vehicle power per liter grade are reduced to 103dB from 106dB, and vehicle sound pressure level is reduced to from 88.4dB
86.2dB reduces driver's noise in one's ear, improves pilot control comfort.
(2) the noise elimination branch pipe of the utility model can one-pass molding, it is simple production process, at low cost, while ensureing pipeline
Pipeline trend can be freely designed in the case of length according to vehicle body space layout, space availability ratio is high.
(3) air cleaner of the utility model and air filter first support are assembly types, and the groove of air filter first support can
With on air filter cylinder annular boss cooperation, the two fasten position can in an axial direction straight line adjusting can also be by being rotated into
Row is adjusted, and to obtain different spatial positions, ensures design requirement.
(4) there is locking spring in the air filter first support of the utility model, prevent bolt looseness, while having positive stop lug boss anti-
Only screw-down torque greatly damages air filter cylinder very much, and there are two vertical kidney slots so as to installation and adjustment on holder.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the utility model air filter air inlet pipe left view.
Fig. 3 is the utility model air filter air inlet pipe front view.
Fig. 4 is that the utility model air cleaner attaches together schematic diagram with air filter first support.
Fig. 5 is the utility model air filtering device structure schematic diagram.
Fig. 6 is the utility model air filter first support structural schematic diagram
Fig. 7 is the utility model use state diagram.
Serial number in upper figure：Air filter air inlet pipe 1, air filter pipe air inlet 11, noise elimination branch pipe 13, horn mouth 131, air filter pipe outlet
Mouth 14, hose clamp 2, air cleaner 3, air filter cylinder 31, air filter air inlet 311, air filter gas outlet 312, annular protrusion 313, ring
Shape boss 314, air filter first support 32, the first kidney slot 321, embedded nut 322, locking spring 323, positive stop lug boss 324,
Gasket 325, hexagon socket head cap screw 326, groove 327, the second kidney slot 328, engine air inlet tube 4, engine intake 5, Hu Ding
Frame air inlet 6, air filter second support 7.
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, a kind of forklift engine gas handling system with noise reduction branch pipe, including air filter air inlet pipe 1, air-filtering
Device 3, engine air inlet tube 4.The air cleaner 3 is equipped with air filter cylinder 31 and air filter first support 32, and air filter cylinder 31 is set
There are air filter air inlet 311 and air filter gas outlet 312, one end of the engine air inlet tube 4 to be connect with engine intake 5, sends out
The other end of motivation air inlet pipe 4 is connect with air filter gas outlet 312, is connected between the air filter air inlet 311 and overhead guard air inlet 6
Connect air filter air inlet pipe 1.What the both ends of the air filter air inlet pipe 1 and engine air inlet tube 4 were locked when being respectively equipped with for connecting
Hose clamp 2.
Referring to Fig. 2 and Fig. 3, the air filter air inlet pipe 1 is the canvas filler rubber pipe of global formation, the both ends of air filter air inlet pipe 1
It is respectively equipped with air filter pipe air inlet 11 and air filter pipe gas outlet 14, the middle part of air filter air inlet pipe 1 is L-shaped pipe, and the L-shaped pipe erects
Straight section is equipped with noise elimination branch pipe 13.The air filter pipe air inlet 11 is connected directly with overhead guard air inlet 6, the air filter pipe outlet
Mouth 14 is connect with air filter import 311.The noise elimination branch pipe 13 is bending canvas filler rubber pipe, the expansion of 13 center line of noise elimination branch pipe
The end position of length L=280mm, noise elimination branch pipe 13 are closed form.The vertical section of the noise elimination branch pipe 13 and the L-shaped pipe
Junction be equipped with transition connection horn mouth 131.The L-shaped pipe at 1 middle part of the air filter air inlet pipe is reducer pipe, horizontal end pipe
Caliber is more than the caliber of vertical section.
Referring to Fig. 4~Fig. 6, the air cleaner 3 is equipped with air filter cylinder 31 and air filter first support 32, the air filter the
One holder 32 is the cyclic annular rubber member with pedestal and opening, is set on air filter cylinder 31.The air filter first support 32
Opening lower section is equipped with embedded nut 322, and upper opening portion is equipped with positive stop lug boss 324, locking spring 323 is housed below positive stop lug boss,
Hexagon socket head cap screw 326 is housed among locking spring 323.Gasket 325 is housed between locking spring 323 and hexagon socket head cap screw 326.
The annular internal of the air filter first support 32 opens the groove 327 for 2mm, the air filter cylinder 31 there are five depth
On there are 11 width to be the annular boss 314 of 2mm, the groove 327 matches with annular boss 314, air filter first support
32 when being sleeved on air filter cylinder 31, can select matched annular boss 314, air filter first support according to the needs of installation space
32 can surround the position that annular boss 314 rotates to needs.
The both ends of the pedestal of the air filter first support 32 are respectively equipped with the first kidney slot 321 and the second kidney slot 328, and
The length direction of the length direction of first kidney slot 321 and the second kidney slot 328 is mutually perpendicular to.At the air filter gas outlet 312
Outer circle is equipped with the annular protrusion 313 of 2mm high.
Referring to Fig. 7, in use, air cleaner 3 is installed to by air filter second support 7 on forklift frame.Air is by protecting
Upper frame air inlet 6 enters air filter air inlet pipe 1, and an air sound wave part for entrance enters noise elimination branch pipe 13, then by noise elimination branch pipe 13
Reflect and air filter air inlet pipe 1 in air sound wave another part superposition and the intensity of attenuating air sound wave, play noise elimination work(
Energy.Air after noise elimination passes through air cleaner 3, enters engine intake 5 by engine air inlet tube 4, then by air
It is transported in engine combustion room.
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 (9)
1. a kind of forklift engine gas handling system with noise reduction branch pipe, including air filter air inlet pipe (1), air cleaner (3), hair
Motivation air inlet pipe (4)；The air cleaner (3) is equipped with air filter cylinder (31) and air filter first support (32), air filter cylinder
(31) be equipped with air filter air inlet (311) and air filter gas outlet (312), one end of the engine air inlet tube (4) and engine into
Gas port (5) connects, and the other end of engine air inlet tube (4) is connect with air filter gas outlet (312), the air filter air inlet (311)
Air filter air inlet pipe (1) is connected between overhead guard air inlet (6)；
It is characterized in that：The air filter air inlet pipe (1) is the canvas filler rubber pipe of global formation, the both ends point of air filter air inlet pipe (1)
Not She You air filter pipe air inlet (11) and air filter pipe gas outlet (14), the middle part of air filter air inlet pipe (1) is L-shaped pipe, the L-shaped pipe
Vertical section be equipped with noise elimination branch pipe (13)；The air filter pipe air inlet (11) is connected directly with overhead guard air inlet (6), described
Air filter pipe gas outlet (14) is connect with air filter air inlet (311)；
When work, air enters air filter air inlet pipe (1) by overhead guard air inlet (6), and an air sound wave part for entrance, which enters, to disappear
Sound branch pipe (13), then by noise elimination branch pipe (13) reflect and air filter air inlet pipe (1) in air sound wave another part superposition and
The intensity of attenuating air sound wave, plays noise elimination function；Air after noise elimination passes through air cleaner (3), passes through engine charge
It manages (4) and enters engine intake (5), then deliver air in engine combustion room.
2. a kind of forklift engine gas handling system with noise reduction branch pipe according to claim 1, it is characterised in that：It is described
Noise elimination branch pipe (13) is bending canvas filler rubber pipe, noise elimination branch pipe (13) center line length of run L=200~300mm, branch of eliminating the noise
The end position for managing (13) is closed form.
3. a kind of forklift engine gas handling system with noise reduction branch pipe according to claim 1, it is characterised in that：It is described
Noise elimination branch pipe (13) is equipped with the horn mouth (131) that transition is connect with the junction of the vertical section of the L-shaped pipe.
4. a kind of forklift engine gas handling system with noise reduction branch pipe according to claim 1, it is characterised in that：It is described
L-shaped pipe in the middle part of air filter air inlet pipe (1) is reducer pipe, and the caliber of horizontal end pipe is more than the caliber of vertical section.
5. a kind of forklift engine gas handling system with noise reduction branch pipe according to claim 1, it is characterised in that：It is described
Air cleaner (3) is equipped with air filter cylinder (31) and air filter first support (32), and the air filter first support (32) is the bottom of with
The cyclic annular rubber member of seat and opening, is set on air filter cylinder (31)；It is equipped with below the opening of the air filter first support (32)
Embedded nut (322), upper opening portion are equipped with positive stop lug boss (324), locking spring (323), locking bullet are housed below positive stop lug boss
Hexagon socket head cap screw (326) is housed among spring (323)；Gasket is housed between locking spring (323) and hexagon socket head cap screw (326)
(325)。
6. a kind of forklift engine gas handling system with noise reduction branch pipe according to claim 5, it is characterised in that：It is described
The annular internal of air filter first support (32) opens the groove (327) for 2mm there are five depth, has 5 on the air filter cylinder (31)
The annular boss (314) that~12 width are 2mm, the groove (327) match with annular boss (314), air filter first
When frame (32) is sleeved on air filter cylinder (31), matched annular boss (314), air filter can be selected according to the needs of installation space
First support (32) can surround the position that annular boss (314) rotates to needs.
7. a kind of forklift engine gas handling system with noise reduction branch pipe according to claim 5, it is characterised in that：It is described
The both ends of the pedestal of air filter first support (32) are respectively equipped with the first kidney slot (321) and the second kidney slot (328), and the first waist
The length direction in shape hole (321) and the length direction of the second kidney slot (328) are mutually perpendicular to.
8. a kind of forklift engine gas handling system with noise reduction branch pipe according to claim 1, it is characterised in that：It is described
Outer circle is equipped with the annular protrusion (313) of 2mm high at air filter gas outlet (312).
9. a kind of forklift engine gas handling system with noise reduction branch pipe according to claim 1, it is characterised in that：It is described
The hose clamp (2) that the both ends of air filter air inlet pipe (1) and engine air inlet tube (4) are locked when being respectively equipped with for connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083439.9U CN207892743U (en) | 2018-01-18 | 2018-01-18 | A kind of forklift engine gas handling system with noise reduction branch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083439.9U CN207892743U (en) | 2018-01-18 | 2018-01-18 | A kind of forklift engine gas handling system with noise reduction branch pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207892743U true CN207892743U (en) | 2018-09-21 |
Family
ID=63545002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820083439.9U Withdrawn - After Issue CN207892743U (en) | 2018-01-18 | 2018-01-18 | A kind of forklift engine gas handling system with noise reduction branch pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207892743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488494A (en) * | 2018-11-30 | 2019-03-19 | 重庆金康新能源汽车设计院有限公司 | Air intake assembly and engine aspirating system |
-
2018
- 2018-01-18 CN CN201820083439.9U patent/CN207892743U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488494A (en) * | 2018-11-30 | 2019-03-19 | 重庆金康新能源汽车设计院有限公司 | Air intake assembly and engine aspirating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180921 Effective date of abandoning: 20230721 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180921 Effective date of abandoning: 20230721 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |