CN203906909U - One-way valve - Google Patents
One-way valve Download PDFInfo
- Publication number
- CN203906909U CN203906909U CN201420353120.5U CN201420353120U CN203906909U CN 203906909 U CN203906909 U CN 203906909U CN 201420353120 U CN201420353120 U CN 201420353120U CN 203906909 U CN203906909 U CN 203906909U
- Authority
- CN
- China
- Prior art keywords
- valve body
- way valve
- supporting base
- cavity
- outlet chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000002699 waste material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model provides a one-way valve which comprises a supporting seat, a fastener, a rubber valve core and a tubular valve body, wherein an air inlet cavity, a guide cavity and an air outlet cavity are sequentially formed in the tubular valve body; the supporting seat is fixed in the guide cavity; an annular boss is formed in the air outlet cavity; the rubber valve core is positioned in the air outlet cavity; one end face of the rubber valve core is tightly attached to the end face, which deviates from the guide cavity, of the annular boss; a gap is reserved between the side face of the rubber valve core and the inner surface of the tubular valve body; the center of the rubber valve core is fixedly connected with one end of the fastener; the other end of the fastener is fixed at the center of the supporting seat; guide holes are formed in the supporting seat; the air inlet cavity is communicated with the air outlet cavity by virtue of the guide holes. The one-way valve is simple in structure and convenient and quick to mount and detach, is low in noise during use and can be well applied to a train excrement collector.
Description
Technical field
The utility model relates to train toilet waste collector, especially relates to a kind of one-way valve.
Background technique
In the prior art, one-way valve is a vital part of train toilet waste collector, and it is connected between vacuum generator and dirt storage box, and its effect is after vacuum generator work completes, one-way valve plays and prevents contacting of storage tank and air, to guarantee the degree of vacuum of storage tank, at present, the spool of one-way valve mostly is metal and manufactures, this metal spool is in use except noise is large, due to problems such as techniques, thereby easily cause, airtightly sternly do not cause air return, and then affect the use of toilet waste collector.
Model utility content
Problem to be solved in the utility model is to provide a kind of simple, less one-way valve of noise while using of making, and applies the degree of vacuum that this one-way valve has effectively guaranteed toilet waste collector storage tank.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of one-way valve, comprise supporting base, fastening piece, rubber spool and tubular valve body, in described tubular valve body, be provided with successively air-inlet cavity, diversion cavity and outlet chamber, described supporting base is fixed in diversion cavity, in described outlet chamber, be provided with annular boss, described rubber spool is tabular, it is positioned at outlet chamber, and the end face that end face of this rubber spool and annular boss deviate from diversion cavity is adjacent to, between the side of described rubber spool and the internal surface of tubular valve body, leave gap, described rubber spool therein one end of heart place and fastening piece is fixedly connected with, the other end of described fastening piece is fixed on the center of supporting base, described supporting base is provided with pod apertures, described air-inlet cavity and outlet chamber are communicated with by pod apertures.
Further, described fastening piece is screw, described screw from the center of rubber spool passes and supporting base be threaded.
Further, described annular boss is arranged at the joint of diversion cavity and outlet chamber.
Further, described pod apertures quantity is 4 and is uniformly distributed on supporting base.
Further, described tubular valve body is provided with internal thread at the air outlet of this valve body end.
Further, described tubular valve body is provided with handwheel at the outer surface of the air outlet of this valve body end.
Further, described tubular valve body is provided with outside thread at the suction port end of this valve body.
Further, described annular boss, supporting base, handwheel, tubular valve body are one-body molded.
Advantage and the good effect that the utlity model has are:
1). spool of the present utility model adopts rubber spool, and is connected with supporting base by screw, and this structural type is made simple, and cost is lower, changes convenient and swiftly, and this one-way valve noise when work is less.
2). supporting base of the present utility model is evenly distributed with 4 pod apertures, and this design guarantees that air-flow is by the uniform pressure distribution to rubber spool after pod apertures, and then makes the along the circumferential direction perk of rubber spool.
3). the utility model suction port end is provided with outside thread, air outlet end is provided with internal thread, and this design guarantees that this one-way valve is connected and dismounting with the quick of other elements, time saving and energy saving.
4). in the utility model, be provided with handwheel, this design facilitates the installation and removal of one-way valve.
5). in the utility model, annular boss, supporting base, handwheel, tubular valve body are one-body molded, and this project organization is compact, save material and easy to use.
Accompanying drawing explanation
Fig. 1 is the work schematic diagram of the utility model rubber spool while closing;
Work schematic diagram when Fig. 2 is the unlatching of the utility model rubber spool;
Fig. 3 is the left view of the utility model Fig. 1;
Wherein, arrow represents airflow direction;
In figure:
1. tubular valve body, 2. air-inlet cavity, 3. supporting base, 4. screw,
5. rubber spool, 6. outlet chamber, 7. handwheel, 8. pod apertures,
9. annular boss.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of one-way valve, comprise supporting base 3, screw 4, rubber spool 5 and tubular valve body 1, in described tubular valve body 1, be provided with successively air-inlet cavity 2, diversion cavity and outlet chamber 6, air-inlet cavity 2, diversion cavity is identical with the center line of outlet chamber 6, the diameter of outlet chamber 6 is greater than the diameter of diversion cavity, the diameter of air-inlet cavity 2 is identical with the diameter of diversion cavity, in diversion cavity, be provided with and the integrated supporting base 3 of tubular valve body 1, supporting base 3 is uniformly distributed with 4 pod apertures 8, air-inlet cavity 2 and outlet chamber 6 communicate by pod apertures 8, in described outlet chamber 6, be provided with annular boss 9, annular boss 9 and tubular valve body 1 are one-body molded, this annular boss 9 is positioned at the joint of outlet chamber 6 and diversion cavity, described rubber spool 5 is positioned at outlet chamber 6, screw 4 from the center of rubber spool 5 passes and supporting base 3 be threaded, and that end face that end face of this rubber spool 5 and annular boss 9 deviate from diversion cavity is adjacent to, between the internal surface of the side of described rubber spool 5 and tubular valve body 1, leave gap, rubber spool 5 with screw for being fixedly connected with,
Described tubular valve body 1 is provided with internal thread at the air outlet of this valve body 1 end.
Described tubular valve body 1 is provided with handwheel 7 at the outer surface of the air outlet of this valve body 1 end, and handwheel 7 and tubular valve body 1 are one-body molded.
Described tubular valve body 1 is provided with outside thread at the suction port end of this valve body 1.
The working principle of this one-way valve is: the outside thread by this one-way valve by suction port end is connected with dirt storage box, this one-way valve is connected by the internal thread of air outlet end and the intakeport of vacuum generator, now air-inlet cavity 2 and the dirt storage box of one-way valve communicate, outlet chamber 6 and vacuum generator communicate, when vacuum generator is opened, vacuum generator siphons away the air in one-way valve outlet chamber 6 by intakeport, due in dirt storage box and the pressure reduction of one-way valve outlet chamber, rubber spool 5 is opened, rubber spool 5 had both been changed into the opening state of Fig. 2 by the closed state of Fig. 1, now the gas in dirt storage box is discharged by one-way valve until be vacuum state in storage tank, close vacuum generator, air is entered the outlet chamber 6 of one-way valve by the intakeport of vacuum generator, now 6 moments of the air-inlet cavity 2 of one-way valve and outlet chamber have produced pressure difference, because rubber spool 5 itself just has ballistic properties, returning position under the effect of pressure now, now rubber spool 5 is close to the end face of annular boss, further stoped air to enter dirt storage box by the external world, guaranteed the degree of vacuum of storage tank, when dirt storage box is used, along with dirt can be arranged gas into dirt storage box simultaneously, after a period of time, the degree of vacuum of dirt storage box inside surpasses limit value, now repeat said process and can guarantee the degree of vacuum in dirt storage box.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (8)
1. an one-way valve, it is characterized in that: comprise supporting base, fastening piece, rubber spool and tubular valve body, in described tubular valve body, be provided with successively air-inlet cavity, diversion cavity and outlet chamber, described supporting base is fixed in diversion cavity, in described outlet chamber, be provided with annular boss, described rubber spool is tabular, it is positioned at outlet chamber, and the end face that end face of this rubber spool and annular boss deviate from diversion cavity is adjacent to, between the side of described rubber spool and the internal surface of tubular valve body, leave gap, described rubber spool therein one end of heart place and fastening piece is fixedly connected with, the other end of described fastening piece is fixed on the center of supporting base, described supporting base is provided with pod apertures, described air-inlet cavity and outlet chamber are communicated with by pod apertures.
2. a kind of one-way valve according to claim 1, is characterized in that: described fastening piece is screw, described screw from the center of rubber spool passes and supporting base be threaded.
3. a kind of one-way valve according to claim 1, is characterized in that: described annular boss is arranged at the joint of diversion cavity and outlet chamber.
4. a kind of one-way valve according to claim 1, is characterized in that: described pod apertures quantity is 4 and is uniformly distributed on supporting base.
5. a kind of one-way valve according to claim 1, is characterized in that: described tubular valve body is provided with internal thread at the air outlet of this valve body end.
6. a kind of one-way valve according to claim 1, is characterized in that: described tubular valve body is provided with handwheel at the outer surface of the air outlet of this valve body end.
7. a kind of one-way valve according to claim 1, is characterized in that: described tubular valve body is provided with outside thread at the suction port end of this valve body.
8. according to a kind of one-way valve described in claim 1 to 7 any one, it is characterized in that: described annular boss, supporting base, handwheel, tubular valve body are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420353120.5U CN203906909U (en) | 2014-06-27 | 2014-06-27 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420353120.5U CN203906909U (en) | 2014-06-27 | 2014-06-27 | One-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906909U true CN203906909U (en) | 2014-10-29 |
Family
ID=51781189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420353120.5U Expired - Fee Related CN203906909U (en) | 2014-06-27 | 2014-06-27 | One-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016082295A1 (en) * | 2014-11-27 | 2016-06-02 | 王荣平 | Novel internal structural tire for automatically inflating small air bag |
-
2014
- 2014-06-27 CN CN201420353120.5U patent/CN203906909U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016082295A1 (en) * | 2014-11-27 | 2016-06-02 | 王荣平 | Novel internal structural tire for automatically inflating small air bag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |