CN202418851U - Control air valve - Google Patents
Control air valve Download PDFInfo
- Publication number
- CN202418851U CN202418851U CN2011205517815U CN201120551781U CN202418851U CN 202418851 U CN202418851 U CN 202418851U CN 2011205517815 U CN2011205517815 U CN 2011205517815U CN 201120551781 U CN201120551781 U CN 201120551781U CN 202418851 U CN202418851 U CN 202418851U
- Authority
- CN
- China
- Prior art keywords
- control device
- area
- lifting
- control
- air
- 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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Abstract
The utility model discloses a control air valve, which comprises an air control device, a gear control device and a lifting cam in the gear control device. A first area and a non-working surface area adjacent to the first area are arranged on the cam surface of the lifting cam, and the first area correspondingly controls the lifting function of the air control device. An arc surface transition is formed between the first area and the non-working surface area. The arc surface transition is formed between the first area for controlling the lifting function of the air control device and the non-working surface area adjacent to the first area on the cam surface of the lifting cam, and the lifting cam is pushed to a lifting gear under any condition, and can automatically return to a stopover position when grip is loosened, so that abnormal lifting caused by misoperation under any condition can be avoided.
Description
Technical field
The utility model is applicable to special purpose vehicle and engineering machinery field, is specifically related to a kind of one control air valve that is used for dump truck.
Background technique
Existing one control air valve is mounted in the dumping car operator cabin, is used for distant control pore selector valve, realize the body of tipper carriage lifting, in stop, descend, one control air valve that slow degradation moves.Present one control air valve does not generally all have lifting shelves self-return function, like this, when handle is placed on the lifting gear, stops gear before driving as in handle not being put back to, and causes compartment lifting in the automobile traveling process, causes a serious accident.
Lifter cam for one control air valve; Generally be that lifter cam produces stop through the parts that wedge angle makes lifter cam be adjacent; And then make system at the lifting gear, when needs in stop or descend or when lowering category slowly, rotate lifter cam; Destroy the stop on it, control gas system driving automobile compartment descends.
Summary of the invention
To above-mentioned deficiency of the prior art; The utility model aims to provide a kind of one control air valve, and it has lifting self-return function, has avoided handle when the lifting gear; Stop gear in driving handle not to be put back to, the situation of compartment lifting takes place in the automobile traveling process.
The technological scheme of the utility model: a kind of one control air valve; Comprise control device of air, shift-position control apparatus and interior lifter cam thereof; The camming surface of this lifter cam is provided with the first area of lifting function on the said control device of air of corresponding control; And adjacent non-working surface zone, pass through the arc surface transition between said first area and this non-working surface zone.
Preferably, the radius of arc of said transition circle cambered surface is 17mm.
Further, also be provided with the second area of decline function on the said control device of air of corresponding control on the camming surface of said lifter cam, on the non-working surface zone, be provided with Joystick.
Said lifter cam is controlled lifting and decline function on the said control device of air through controlling rod respectively, and this control device of air contacts with said controlling rod through the removable steel ball on it respectively.
Have the cambered surface that acts on mutually with said steel ball on the said controlling rod, the cambered surface radius of this cambered surface is less than the radius of said steel ball.
The utility model is made as the arc surface transition through the non-working surface zone that the first area with the said control device of air lifting function of control on the camming surface of lifter cam is adjacent; When said controlling rod is between first area and non-working surface zone; Because of controlling rod and said lifter cam do not have stop, and the reaction force of control device of air, make lifter cam have the self-return function; So in any case lifter cam is pushed to the lifting gear; As long as unclamp hand, off-position was put the improper lifting that can avoid misoperation in any case to cause during lifter cam can be got back to automatically.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the control system among Fig. 1;
Fig. 3 is the structural representation of lifter cam among Fig. 2;
Fig. 4 is the structure plan view of the controlling rod among Fig. 2.
Embodiment
Come further explain the utility model below in conjunction with specific embodiment and accompanying drawing.
Specifically see also Fig. 1 to Fig. 4; Said one control air valve comprises control device of air 8, shift-position control apparatus 1 and interior lifter cam 4 thereof; The camming surface of this lifter cam 4 is provided with the first area 41 of lifting function on the said control device of air 8 of corresponding control; And adjacent non-working surface zone 46, pass through arc surface 45 transition between said first area 41 and this non-working surface zone 46.
The cambered surface radius of the transition circle cambered surface 45 in the lifter cam described in the utility model 4 is R17mm; Make the said control device of air 8 lifting functions of control not have stop through said first area 41 and this transition circle cambered surface 45; But there is not the dead point not have immovable point in other words when promptly being the said control device of air 8 lifting functions of first area 41 and this transition circle cambered surface 45 controls; That is to say; When the external force that acts on the lifter cam 4 is shifted lifter cam 4 onto lifting gear arbitrary position, the corresponding said control device of air 8 in the arbitrary position on first area 41 and the said transition circle cambered surface 45 just, normal lifting; If but after acting on the external force cancellation on the lifter cam 4, said lifter cam 4 will stop gear from the lifting gear is got back to automatically.
Further, also be provided with the second area 42 of the said control device of air 8 decline functions of corresponding control on the utility model on the camming surface of lifter cam 4, on non-working surface zone 46, be provided with the gear control that Joystick 7 is used for said lifter cam 4.
Referring to Fig. 2; Said lifter cam 4 is respectively through lifting and decline function on the said control device of air 8 of controlling rod 2,3 controls; This control device of air 8 is through contacting with said controlling rod 2,3 through the removable steel ball 6 on it respectively; On said controlling rod 2,3, have the cambered surface 21,22 that acts on mutually with said steel ball, the cambered surface radius of this cambered surface 21,22 is less than the radius of said steel ball 6.
Particularly; See Fig. 2; Joystick 7 is pushed lifter cam 4 to the lifting gear, and first area 41 on the camming surface of said lifter cam 4 and transition circle cambered surface 45 contact with controlling rod 2, and push lever 2 is with the steel ball that is in contact with it 6 extruding; And then move the said control device of air 8 interior springs of compression by this steel ball 6 and realize control gas, finally realize the lifting function in compartment; When the openhanded Joystick 7 of opening, said lifter cam 4 self-returns in stop gear; Joystick 7 is pushed lifter cam 4 to the gear that descends; Second area 42 on the camming surface of said lifter cam 4 contacts with controlling rod 3; And push lever 3 is with the steel ball extruding that is in contact with it; And then move the said control device of air 8 interior springs of compression by this steel ball and realize control gas, finally realize the decline function in compartment.
The above is merely the detailed description of the utility model preferred embodiment and graphic, is not to be used for limiting the utility model, and the embodiment or the approximate construction of all similar variations of doing according to the creation spirit of the utility model all should be contained among the utility model.
Claims (5)
1. one control air valve; Comprise control device of air, shift-position control apparatus and interior lifter cam thereof; The camming surface of this lifter cam is provided with the first area of lifting function on the said control device of air of corresponding control; And adjacent non-working surface zone, it is characterized in that: pass through the arc surface transition between said first area and this non-working surface zone.
2. a kind of one control air valve according to claim 1 is characterized in that: the radius of arc of said transition circle cambered surface is 17mm.
3. a kind of one control air valve according to claim 1 and 2 is characterized in that: also be provided with the second area of decline function on the said control device of air of corresponding control on the camming surface of said lifter cam, on the non-working surface zone, be provided with Joystick.
4. a kind of one control air valve according to claim 3; It is characterized in that: said lifter cam is controlled lifting and decline function on the said control device of air through controlling rod respectively, and this control device of air contacts with said controlling rod through the removable steel ball on it respectively.
5. a kind of one control air valve according to claim 4 is characterized in that: have the cambered surface that acts on mutually with said steel ball on the said controlling rod, the cambered surface radius of this cambered surface is less than the radius of said steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205517815U CN202418851U (en) | 2011-12-26 | 2011-12-26 | Control air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205517815U CN202418851U (en) | 2011-12-26 | 2011-12-26 | Control air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418851U true CN202418851U (en) | 2012-09-05 |
Family
ID=46743615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205517815U Expired - Fee Related CN202418851U (en) | 2011-12-26 | 2011-12-26 | Control air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090057A (en) * | 2013-01-16 | 2013-05-08 | 重庆润江机械制造有限公司 | Electromagnetic manual-control integrated control valve |
-
2011
- 2011-12-26 CN CN2011205517815U patent/CN202418851U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090057A (en) * | 2013-01-16 | 2013-05-08 | 重庆润江机械制造有限公司 | Electromagnetic manual-control integrated control valve |
| CN103090057B (en) * | 2013-01-16 | 2015-12-02 | 金华明正科技有限公司 | The manual integrative control valve of a kind of electromagnetism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20131226 |