CN101387347A - Walking tractor chamber air pressure respiration adjusting valve - Google Patents
Walking tractor chamber air pressure respiration adjusting valve Download PDFInfo
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- CN101387347A CN101387347A CNA2007101128746A CN200710112874A CN101387347A CN 101387347 A CN101387347 A CN 101387347A CN A2007101128746 A CNA2007101128746 A CN A2007101128746A CN 200710112874 A CN200710112874 A CN 200710112874A CN 101387347 A CN101387347 A CN 101387347A
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- plunger
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Abstract
The invention relates to an air-pressure breathing adjusting valve for a cavity of a hand tractor, which comprises a valve body and is characterized in that the two ends and the circumferential surface of the valve body are provided with valve ports for communicating a valve cavity respectively, a mounting rack is fixed on the outer circumferential surface of the valve body, a plunger which can move freely is arranged in the valve cavity, the two ends of the plunger can plug the valve ports at the two ends of the valve body at moving end points, a breathing groove is formed radially on the circumferential surface of the plunger corresponding to the valve port on the circumferential surface of the valve body, and the breathing groove is always communicated with the valve port on the circumferential surface of the valve body. The valve ports on the two ends of the valve body are assembled between an air-pressure breathing outlet of a diesel engine cavity of the hand tractor and a cylinder head air hole on the rear part of the diesel engine respectively, and the valve port on the circumference of the valve body is used as a common breathing adjusting outlet, so that the air-pressure breathing adjusting valve has the advantages of simple structure, convenient installation and use and low product cost, and can effectively reduce the engine oil leakage in the machine cavity and reduce the environmental pollution.
Description
Technical field
The present invention relates to the accessory of general class vehicle, especially a kind of walking tractor chamber air pressure respiration adjusting valve.
Background technique
Hand tractor has obtained the favor of vast farmers as a kind of easy to use, dexterous operation Transport Machinery, and it is the good assistant that the peasant carries out farming.At present, the diesel engine chamber internal air pressure of hand tractor is to regulate by the air pressure respirating tube of front portion, machine chamber.Hand tractor is up and down constantly swing state before and after being when work, when hang low in the front portion, the position of former air pressure respirating tube just reduces, and the machine oil in the machine chamber just flows out along former air pressure respirating tube.Not only cause machine oil waste aggravation, and the machine oil that flows out can get rid of and spatter on one's body tractor body or driver, cause oil pollution.
Summary of the invention
The machine oil in the hand tractor machine chamber flows out the deficiency that causes machine oil waste and environmental pollution in the prior art along the air pressure respirating tube in order to overcome, the invention provides a kind of walking tractor chamber air pressure respiration adjusting valve, this walking tractor chamber air pressure respiration adjusting valve is not only simple in structure, easy to process, and use reliable, can prevent effectively that machine oil runs off, and reduces environmental pollution.
The technological scheme that technical solution problem of the present invention is adopted is: a kind of walking tractor chamber air pressure respiration adjusting valve, comprise valve body, be characterized in: on valve body, be provided with three valve ports that are communicated with valve pocket, described valve port is separately positioned on the circumferential surface of two ends of valve body and valve body, on the valve body outer peripheral surface of corresponding circle side face valve port opposite side, be fixedly connected with scaffold, in valve pocket, be provided with the plunger that can move freely, the two ends of plunger can be respectively with the shutoff of two ends of valve body valve port in active terminal, valve port at the corresponding valve body circumference of the circumferential surface of plunger radially has a respiratory slot, and the valve port on this respiratory slot and the valve body circumference remains perforation.The present invention breathes between the cylinder head pore at outlet and diesel engine rear portion at the diesel oil chamber air pressure that the valve port on the valve body two ends is assemblied in hand tractor respectively, the valve port of valve body circumference is as public respiratory regulation outlet, no matter when hand tractor was in any position when the work swing, the plunger in the valve pocket can both prevent effectively that the machine oil in the machine chamber from flowing out.
The invention has the beneficial effects as follows that simple in structure, easy to install, product cost is low, the machine oil that can effectively reduce in the machine chamber runs off, and reduces environmental pollution.
Description of drawings
The present invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a kind of structure master's sectional view of the present invention.
Fig. 2 is a kind of status architecture schematic representation of the present invention.
Fig. 3 is an another kind of status architecture schematic representation of the present invention.
Fig. 4 is the third status architecture schematic representation of the present invention.
1. valve bodies among the figure, 2. end valve port, 3. end valve port, 4. circumference valve port, 5. valve pocket, 6. plunger, 7. respiratory slot, 8. scaffold.
Embodiment
A kind of walking tractor chamber air pressure respiration adjusting valve, as shown in Figure 1, this modulating valve is a three-way valve, promptly comprise valve body (1), on valve body (1), be provided with three valve port (2), (3), (4) that are communicated with valve pocket (5), valve port (2), (3) are separately positioned on the two ends of valve body (1), and valve port (4) is arranged on the circumferential surface of valve body (1).
Be provided with plunger (6) in valve pocket (5), plunger (6) external diameter and valve pocket internal diameter have certain residual quantity, as the space of air-flow breathing, and can move freely in valve pocket (5).The two ends of plunger (6) active terminal can be respectively with two ends valve port (2), (3) shutoff of valve body (1), valve port (4) at the corresponding valve body circumference of the circumferential surface of plunger (6) radially has a respiratory slot (7), and this respiratory slot (7) remains perforation with valve port (4) on the valve body circumference.
On valve body (1) outer peripheral surface of corresponding circle side face valve port (4) opposite side, be fixedly connected with scaffold (8).
The present invention breathes outlet with end valve port (2) with the diesel engine chamber air pressure of hand tractor and is connected in use, bores pore outlet on the cylinder of diesel engine head-shield top of hand tractor and is connected with end valve port (3).The present invention is installed on the diesel-engine body of hand tractor through scaffold (8), and the valve port on the valve body circumference (4) holds down, as public chamber air pressure respiratory regulation mouth.。
After hand tractor has been installed chamber air pressure respiration adjusting valve, three kinds of states are arranged during work:
First kind of state, as shown in Figure 2, the diesel engine rear end perk of hand tractor at this moment, front end hangs down, and the machine oil in the diesel engine chamber is poured into front end.Because the effect of self gravitation, plunger (6) in the valve pocket (5) slides to end valve port (2), end valve port (2) is blocked, promptly block the diesel engine chamber air pressure and breathe outlet, close the path through end valve port (2), like this, machine oil just is trapped in the diesel engine chamber, can not flow out by end valve port (2), prevented leakage of oil.And end valve port this moment (3) is opened, communicate with public chamber air pressure respiration adjusting valve mouth (4) by valve pocket (5), plunger respiratory slot (7), the Pneumatic pipe cleaner in the machine chamber crosses the diesel engine cylinder head pore and end valve port (3), valve pocket (5), plunger respiratory slot (7) are regulated with the path and the external world that valve port (4) constitutes.Because machine oil is poured into machine chamber front end, machine chamber, diesel engine rear portion inner engine oil oil level is low, so machine oil can not flow out from end valve port (3), can not waste machine oil.
Second kind of state, as shown in Figure 3, the diesel engine front end perk of hand tractor at this moment, hang down in the rear end, and the machine oil in the diesel engine chamber is poured into the rear end.Because the effect of self gravitation, plunger (6) in the valve pocket (5) slides to end valve port (3), end valve port (3) is blocked, promptly block the new pore outlet of boring in cylinder head top, diesel engine rear end, close the path by end valve port (3), like this, machine oil just is trapped in the machine chamber, can not flow out by end valve port (3), prevent leakage of oil.And end valve port this moment (2) is opened, communicate with public chamber air pressure respiration adjusting valve mouth (4) by valve pocket (5), plunger respiratory slot (7), the Pneumatic pipe cleaner in the machine chamber is crossed the diesel engine chamber air pressure and is breathed the path and the external world of outlet and end valve port (2), valve pocket (5), plunger respiratory slot (7) and valve port (4) formation and regulate.Because machine oil is poured into the machine cavity rear end, the anterior machine of diesel engine chamber inner engine oil oil level is low, so machine oil can not flow out from end valve port (2), can not waste machine oil.
The third state, as shown in Figure 4, this moment, the diesel engine front and back of hand tractor were the level of state, and front and back machine oil is even in the machine chamber, and the pore outlet on chamber air pressure breathing outlet and the cowl hood is all more than the inner engine oil pasta of machine chamber.Plunger (6) in the valve pocket of air pressure respiration adjusting valve (5) also is the level of state this moment, can be in the arbitrary position in the valve pocket, that is to say that at this moment the end valve port (2) and the end valve port (3) of air pressure respiration adjusting valve all are in open mode, can constitute path with valve port (4).In the machine chamber air pressure can breathe outlet and end valve port (2), valve pocket (5), plunger respiratory slot (7) be regulated breathing with path and the external world that valve port (4) constitutes by the diesel engine chamber air pressure, also the path and the external world by diesel engine cylinder head pore and end valve port (3), valve pocket (5), plunger respiratory slot (7) and valve port (4) formation regulates breathing.And this moment, machine oil can not flow out the machine chamber.
Claims (1)
1, a kind of walking tractor chamber air pressure respiration adjusting valve, comprise valve body, it is characterized in that: on valve body, be provided with three valve ports that are communicated with valve pocket, described valve port is separately positioned on the circumferential surface of two ends of valve body and valve body, on the valve body outer peripheral surface of corresponding circle side face valve port opposite side, be fixedly connected with scaffold, in valve pocket, be provided with the plunger that can move freely, the two ends of plunger can be respectively with the shutoff of two ends of valve body valve port in active terminal, valve port at the corresponding valve body circumference of the circumferential surface of plunger radially has a respiratory slot, and the valve port on this respiratory slot and the valve body circumference remains perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101128746A CN101387347A (en) | 2007-09-12 | 2007-09-12 | Walking tractor chamber air pressure respiration adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101128746A CN101387347A (en) | 2007-09-12 | 2007-09-12 | Walking tractor chamber air pressure respiration adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101387347A true CN101387347A (en) | 2009-03-18 |
Family
ID=40476915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101128746A Pending CN101387347A (en) | 2007-09-12 | 2007-09-12 | Walking tractor chamber air pressure respiration adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101387347A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563147A (en) * | 2012-02-08 | 2012-07-11 | 刘立文 | Safety valve of run-flat tire |
| CN113217494A (en) * | 2021-04-30 | 2021-08-06 | 成都飞机工业（集团）有限责任公司 | Oil-gas conversion valve and using method thereof |
-
2007
- 2007-09-12 CN CNA2007101128746A patent/CN101387347A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563147A (en) * | 2012-02-08 | 2012-07-11 | 刘立文 | Safety valve of run-flat tire |
| CN113217494A (en) * | 2021-04-30 | 2021-08-06 | 成都飞机工业（集团）有限责任公司 | Oil-gas conversion valve and using method thereof |
| CN113217494B (en) * | 2021-04-30 | 2022-05-06 | 成都飞机工业（集团）有限责任公司 | Oil-gas conversion valve and using method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090318 |