CN203098969U - Engineering machinery concentration inflation system switching valve - Google Patents
Engineering machinery concentration inflation system switching valve Download PDFInfo
- Publication number
- CN203098969U CN203098969U CN 201220741586 CN201220741586U CN203098969U CN 203098969 U CN203098969 U CN 203098969U CN 201220741586 CN201220741586 CN 201220741586 CN 201220741586 U CN201220741586 U CN 201220741586U CN 203098969 U CN203098969 U CN 203098969U
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- valve
- core bar
- driving lever
- switch valve
- tire
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Abstract
The utility model discloses an engineering machinery concentration inflation system switching valve. The portion where a shifting rod (9) and a core bar (4) are in contact is of an eccentric structure. The eccentric structure is that when the shifting rod (9) rotates around a shifting rod fixing pin (7) to one side limiting position, the core bar (4) achieves a plugging effect under the effect of a return spring (6); and when the shifting rod (9) rotates to the other side limiting position, the core bar (4) overcomes the elastic effect of the return spring (6) and opens a valve opening. The technical scheme is used, rotating of the shifting rod is convenient and flexible, a shifting rod rotating mechanism is used for opening the valve, the inflating and deflating function of a tire can be achieved, and the time that a driver inflates and deflates the tire and operating time are greatly saved. A braking process is simple in operation and stable in performance, tire pressure and pipeline pressure can be separated in short time, braking efficiency is high, and therefore the service life of products can be greatly prolonged.
Description
Technical field
The utility model belongs to the technical field of engineering machinery, relates to the braking technology of engineering machinery, and more particularly, the utility model relates to a kind of engineering machinery and concentrates the gas charging system switch valve.
Background technique
At present, the gas charging valve that tire roller in domestic most of engineering machinery concentrates gas charging system to use, it all is the robot brain tool, mainly be to control the automatic gas charging valve that is connected with tire by automatically controlled stop valve, this valve can be opened the valve cock valve by the continuous increase of air pressure, thereby gives the tire self-inflating.
Its control principle is: if when the air pressure in the pipeline has leakage, when leaking into the protection pressure of setting, the valve cock valve can be closed automatically, and tire pressure and ambient pressure are separated, and plays pressure holding function.
But this kind valve is to be contained on the tire fixedly, can not deflate a tire when tire pressure is too high, must pull down automatic gas charging valve and just can exit.
As mentioned above, the automatic gas charging valve product working principle that off-the-road tyre road roller gas charging system is commonly used is single at present, can not satisfy user's usage requirement on function fully.
The model utility content
The utility model provides a kind of engineering machinery to concentrate the gas charging system switch valve, its objective is the function that realizes its inflation, pressurize and venting, increases work efficiency.
To achieve these goals, the technological scheme taked of the utility model is:
Engineering machinery provided by the utility model is concentrated the gas charging system switch valve, comprises switch valve valve body, valve cock interface and ventilation interface; Described valve cock interface is connected with valve cock on the tire, described ventilation interface is connected with swivel joint or permanent joint on the tire, described switch valve is provided with core bar and return spring, the end of described core bar is located at described valve cock interface position, and this end of core bar is provided with the structure with the path shutoff of described valve cock interface and ventilation interface; The elastic force direction of described return spring is the direction with this path shutoff; The other end of described core bar, if driving lever, described driving lever is fixed on the described switch valve valve body by the driving lever fixing pin, the position that described driving lever contacts with core bar is an eccentric structure, this eccentric structure is: when described driving lever when described driving lever fixing pin rotates to a side pole extreme position, then core bar plays plugging action under described return spring effect; When rotating to the opposite side limit position, then core bar overcomes the elastic force effect of described return spring, opens valve port.
The dust hood of setting up defences on the described switch valve valve body, described dust-proof cover covers on the shaft of described driving lever in its cavity.
Described dust-proof cover is stretched out in the end of described driving lever, and is provided with knob handle in this end.
Described core bar and described switch valve valve body adopt and are slidingly matched, and are provided with the core bar seal ring on described core bar, and the matching gap between described core bar and the described switch valve valve body is sealed.
Described dust-proof cover is an elastic material.
The utility model adopts technique scheme, has increased a rotating mechanism, and driving lever and valve body adopt fixing pin fastening, rotate convenient, flexible, the knob handle of head is easy to use, and dust-proof cover can prevent effectively that dust and dirt from entering in the body, has improved the cleaning inside degree of product; Valve body lower portion adopts with valve cock and is threaded, and is easy to assembling and dismounting; Adopt the driving lever rotating mechanism to open valve, both can realize the charging-discharging function of tire, when driving lever is in a side, tire can play pressure holding function, do not need gas charging valve is removed in the time of venting simultaneously, only need promptly can realize, save the driver greatly and given the time and the activity duration of tyre inflation and venting by rotating lever; Braking process is simple to operate, and stable performance can separate tire pressure and pipeline air pressure retardation efficiency height, thereby the working life of having improved product greatly in the short time.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are made brief description:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic top plan view (analyse and observe at driving lever fixing pin place) of structure shown in Figure 1;
Be labeled as among the figure:
1, knob handle, 2, dust-proof cover, 3, the switch valve valve body, 4, core bar, 5, the core bar seal ring, 6, return spring, 7, the driving lever fixing pin, 8, valve cock, 9, driving lever.
Embodiment
Contrast accompanying drawing below,, embodiment of the present utility model is described in further detail, inventive concept of the present utility model, technological scheme are had more complete, accurate and deep understanding to help those skilled in the art by description to embodiment.
Structure of the present utility model is as shown in Figure 1 concentrated the gas charging system switch valve for a kind of engineering machinery, comprises switch valve valve body 3, valve cock interface and ventilation interface; Described valve cock interface is connected with valve cock 8 on the tire, and described ventilation interface is connected with swivel joint or permanent joint on the tire.
Among Fig. 1, the interface on hand switch valve right side is connected with swivel joint or permanent joint on the tire, and swivel joint communicates with air inlet pipeline; The interface of downside is connected with tyre valve, gives tyre inflation or venting.
In order to solve the problem that prior art exists and to overcome its defective, realize the function of its inflation, pressurize and venting, the goal of the invention of increasing work efficiency, the technological scheme that the utility model is taked is:
As depicted in figs. 1 and 2, engineering machinery provided by the utility model is concentrated the gas charging system switch valve, described switch valve is provided with core bar 4 and return spring 6, the end of described core bar 4 is located at described valve cock interface position, and this end of core bar 4 is provided with the structure with the path shutoff of described valve cock interface and ventilation interface; The elastic force direction of described return spring 6 (direction that promptly makes progress) is the direction with this path shutoff; The other end of described core bar 4, if driving lever 9, described driving lever 9 is fixed on the described switch valve valve body 3 by driving lever fixing pin 7, the position that described driving lever 9 contacts with core bar 4 is an eccentric structure, this eccentric structure is: when described driving lever 9 (angle is reset to 0 degree) when described driving lever fixing pin 7 rotates to a side pole extreme position, then core bar 4 plays plugging action under described return spring 6 effects; When rotating to the opposite side limit position, then core bar 4 overcomes the elastic force effect of described return spring 6, opens valve port (valve cock 8 is opened).
The utility model provides above-mentioned novel hand switch valve at the hidden danger that prior art exists.Its basic design is: valve is opened in the rotation by driving lever 9, and the air pressure in the pipeline can enter tire, realizes giving the tyre inflation function; Again driving lever 9 is forwarded to opposite direction, the valve cock valve is closed under the gas pressure of tire itself automatically, plays pressure holding function.When needs deflated a tire, as long as the source of the gas in the pipeline of draining, rotating lever was opened the valve cock valve again, just can deflate a tire, and satisfies user's usage requirement.
The dust hood 2 of setting up defences on the described switch valve valve body 3, described dust-proof cover 2 covers on the shaft of described driving lever 9 in its cavity.
Described dust-proof cover 2 is stretched out in the end of described driving lever 9, and is provided with knob handle 1 in this end.
Described core bar 4 adopts with described switch valve valve body 3 and is slidingly matched, and is provided with core bar seal ring 5 on described core bar 4, and the matching gap between described core bar 4 and the described switch valve valve body 3 is sealed.
Earlier core bar seal ring 5 is enclosed within on the core bar 4, return spring 6 is put in switch valve valve body 3 holes, again the core bar assembly is placed on the return spring 6, be depressed into the fixed position; Then driving lever 9 is put into switch valve valve body 3 by diagram, behind the fixed position, passes switch valve valve body 3 and driving lever 9(as shown in Figure 2 with driving lever fixing pin 7), rivet tightly, again dust-proof cover 2 is enclosed within on the body, screw on knob handle 1 at last.
Described dust-proof cover 2 is an elastic material.When satisfying the diverse location of driving lever 9, can guarantee elastic material dustproof effect.
Below briefly introduce working procedure of the present utility model:
Air-pressure brake: when not using driving lever 9, as long as when driving lever 9 is pulled the shown position left side, suction port is imported specified operating air pressure to the right, when the air pressure in the air inlet pipeline during greater than the summation of air pressure in the tire and tire valve spring force, promote valve cock 8 valves and move down, realize giving the tyre inflation function;
Drain behind the gas in the air inlet pipeline, the tire valve spring can self-return, shuts tyre valve 8, and tire pressure and ambient pressure are separated, and plays pressure holding function.
Mechanical braking: when driving lever 9 is pulled the shown position right side, need only suction port input air pressure to the right, just can give tyre inflation, when being charged to nominal operation air pressure, after driving lever pulled leftward position, the valve cock valve is the meeting self-return under the effect of tire internal air pressure and spring force, realizes the tire pressure holding function.
When pulling driving lever once more, do not give the air inlet input air pressure, can deflate a tire to the right side.
Be working principle of the present utility model below:
Air-pressure brake: make driving lever be in left position by pulling driving lever, the valve cock valve is in closed condition, to suction port input service air pressure.
When air pressure during less than the summation of tire internal air pressure and valve spring power, valve can not opened.
Along with the continuous increase of air pressure, when air pressure during greater than the summation of tire internal air pressure and valve spring power, valve is opened automatically, and tire is in inflated condition.
When tire internal air pressure reached the requirement of nominal operation air pressure, behind the air pressure in the air inlet pipeline of draining, the valve cock valve was closed under the effect of inside tires pressure and spring force automatically, and tire is realized pressure holding function.
Mechanical braking: when pulling driving lever 9 to location right, core bar 4 can be opened the valve cock valve.If the air pressure in the pipeline during greater than the summation of tire internal air pressure and valve spring power, is given tyre inflation; If the air pressure in the pipeline during less than the summation of tire internal air pressure and spring force, then deflates a tire.
The beneficial effects of the utility model:
As shown in FIG., increased a rotating mechanism, this is one of innovative point of the present utility model, driving lever 9 adopts driving lever fixing pin 7 fastening with body, rotate convenient, flexible, the knob handle 1 of head is easy to use, and dust-proof cover 2 can prevent effectively that dust and dirt from entering in the body, has improved the cleaning inside degree of product;
The body bottom is adopted with valve cock 8 and is threaded, and is easy to assembling and dismounting, and this is two of an innovative point of the present utility model; Adopt the driving lever rotating mechanism to open valve, both can realize the charging-discharging function of tire, when driving lever 9 is in the left side, tire can play pressure holding function, do not need gas charging valve is removed in the time of venting simultaneously, only need promptly can realize, save the driver greatly and given the time and the operation process time of tyre inflation and venting by rotating lever.
Advantage of the present utility model is: braking process is simple to operate, and stable performance can separate tire pressure and pipeline air pressure retardation efficiency height, thereby the working life of having improved product greatly in the short time.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or design of the present utility model and technological scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.
Claims (5)
1. an engineering machinery is concentrated the gas charging system switch valve, comprises switch valve valve body (3), valve cock interface and ventilation interface; Described valve cock interface is connected with valve cock (8) on the tire, described ventilation interface is connected with swivel joint or permanent joint on the tire, it is characterized in that: described switch valve is provided with core bar (4) and return spring (6), the end of described core bar (4) is located at described valve cock interface position, and this end of core bar (4) is provided with the structure with the path shutoff of described valve cock interface and ventilation interface; The elastic force direction of described return spring (6) is the direction with this path shutoff; The other end of described core bar (4), if driving lever (9), described driving lever (9) is fixed on the described switch valve valve body (3) by driving lever fixing pin (7), the position that described driving lever (9) contacts with core bar (4) is an eccentric structure, this eccentric structure is: when described driving lever (9) when described driving lever fixing pin (7) rotates to a side pole extreme position, then core bar (4) is at the following plugging action of described return spring (6) effect; When rotating to the opposite side limit position, then core bar (4) overcomes the elastic force effect of described return spring (6), opens valve port.
2. concentrate the gas charging system switch valve according to the described engineering machinery of claim 1, it is characterized in that: the dust hood (2) of setting up defences on the described switch valve valve body (3), described dust-proof cover (2) covers on the shaft of described driving lever (9) in its cavity.
3. concentrate the gas charging system switch valve according to the described engineering machinery of claim 1, it is characterized in that: described dust-proof cover (2) is stretched out in the end of described driving lever (9), and is provided with knob handle (1) in this end.
4. concentrate the gas charging system switch valve according to the described engineering machinery of claim 1, it is characterized in that: described core bar (4) adopts with described switch valve valve body (3) and is slidingly matched, on described core bar (4), be provided with core bar seal ring (5), the matching gap between described core bar (4) and the described switch valve valve body (3) is sealed.
5. concentrate the gas charging system switch valve according to the described engineering machinery of claim 1, it is characterized in that: described dust-proof cover (2) is an elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220741586 CN203098969U (en) | 2012-12-28 | 2012-12-28 | Engineering machinery concentration inflation system switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220741586 CN203098969U (en) | 2012-12-28 | 2012-12-28 | Engineering machinery concentration inflation system switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098969U true CN203098969U (en) | 2013-07-31 |
Family
ID=48850374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220741586 Expired - Fee Related CN203098969U (en) | 2012-12-28 | 2012-12-28 | Engineering machinery concentration inflation system switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062455A (en) * | 2012-12-28 | 2013-04-24 | 芜湖盛力科技股份有限公司 | On-off valve of engineering mechanical centralizing aerating system |
-
2012
- 2012-12-28 CN CN 201220741586 patent/CN203098969U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062455A (en) * | 2012-12-28 | 2013-04-24 | 芜湖盛力科技股份有限公司 | On-off valve of engineering mechanical centralizing aerating system |
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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 |
Granted publication date: 20130731 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |