CN201228776Y - Hand-controlled brake valve for engineering machinery - Google Patents
Hand-controlled brake valve for engineering machinery Download PDFInfo
- Publication number
- CN201228776Y CN201228776Y CNU2008200382237U CN200820038223U CN201228776Y CN 201228776 Y CN201228776 Y CN 201228776Y CN U2008200382237 U CNU2008200382237 U CN U2008200382237U CN 200820038223 U CN200820038223 U CN 200820038223U CN 201228776 Y CN201228776 Y CN 201228776Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- engineering machinery
- rubber
- push rod
- 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 hand brake valve of engineering machinery, which comprises a handle (11), a push rod (2), a valve body (9), a valve seat (8) and a rubber valve gate(5), wherein the lower surface of the rubber valve gate (5) and the upper surface (12) of an inner hole of the valve seat are matching surfaces which can be attached for sealing, the lower surface of the rubber valve gate (5) is a plane, the upper surface (12) of the inner hole of the valve seat is equipped with a convex sealing ring structure, and the sealing ring structure is a circle of protruding ring (10) of the valve seat. By utilizing the structure, the hand brake valve of engineering machinery enlarges the flexible sealing surface between the rubber valve gate ant the valve seat, increases the sealing property, guarantees sound sealing property of finished goods, prolongs the service life and increases safety factor of finished goods.
Description
Technical field
The utility model relates to the engineering machinery braking system, especially relates to the engineering machinery hand braking valve.
Background technique
Existing engineering machinery hand braking valve as shown in Figure 3, comprises handle 11, push rod 2, sealing nut 1, O-ring seals 3, spring 4, rubber valve 5, internal tooth packing ring 13, hexagon nut 14, valve seat 8, valve body 9, O-ring seals 3 are enclosed within push rod 2 seal grooves, spring 4 is enclosed within on the push rod 2, push rod 2 is packed in the valve body 9, rubber valve 5 is enclosed within push rod 2 one ends again, and with internal tooth packing ring 13 and hexagon nut 14 and tight.Put rectangular seal on the valve seat 8, be connected with valve body with two construction bolts and spring washer again.Sealing nut 1 is spun on valve body 9 neck ends, and handle is spun on the top of push rod 2.The lower surface of rubber valve 5 and valve seat endoporus upper surface are the fitting surface of the sealing of can fitting, and the lower surface of rubber valve 5 has the outstanding ring 15 of the rubber valve that stretches out downwards, and valve seat endoporus upper surface is a plane.When the driver presses lower handle, rubber valve 5 is fitted such structure with valve seat endoporus upper surface, the sealing R face of engineering machinery hand braking valve is located on the rubber valve 5, valve seat 8 sealing surfaces are the plane, and sealing effect is not fine, and the finished product sealing that causes is relatively poor.
The model utility content
Technical problem to be solved in the utility model is: a kind of engineering machinery hand braking valve that guarantees that the finished product sealability is good is provided.
Solve this technical problem, the technical solution of the utility model is: a kind of engineering machinery hand braking valve, comprise handle, push rod, valve body, valve seat, rubber valve, the lower surface of rubber valve and valve seat endoporus upper surface are the fitting surface of the sealing of can fitting, the lower surface of described rubber valve is the plane, and described valve seat endoporus upper surface is provided with the seal ring structure of projection.
Described seal ring structure is the outstanding ring of a circle valve seat, and the cross section of the outstanding ring of this valve seat is semicircle.
Described push rod lower end is provided with the self-locking nut that compresses rubber valve.
Be provided with the heavy-duty spring packing ring between the rubber valve of described push rod lower end and the self-locking nut.
The peak of the outstanding ring of described valve seat and the spacing of valve seat endoporus upper surface are 1～2 millimeter.
The utility model engineering machinery hand braking valve adopts such structure, has increased the flexible sealing face between rubber valve and the valve seat, has improved sealability, has guaranteed that the finished product sealability is good, has prolonged working life, has improved the safety coefficient of finished product.
Description of drawings
Below in conjunction with accompanying drawing the utility model engineering machinery hand braking valve is done explanation in further detail:
Fig. 1 is the structural representation of the utility model engineering machinery hand braking valve;
Fig. 2 is the structure for amplifying schematic representation of valve seat shown in Figure 1;
Fig. 3 is the structural representation of the engineering machinery hand braking valve of prior art;
In Fig. 1, Fig. 2, Fig. 3,1, sealing nut; 2, push rod; 3, O-ring seals; 4, spring; 5, rubber valve; 6, heavy-duty spring packing ring; 7, self-locking nut; 8, valve seat; 9, valve body; 10, the outstanding ring of valve seat; 11, handle; 12, valve seat endoporus upper surface; 13, internal tooth packing ring; 14, hexagon nut; 15, the outstanding ring of rubber valve.
Embodiment
As shown in Figure 1 and Figure 2, the engineering machinery hand braking valve comprises sealing nut 1, push rod 2, O-ring seals 3, spring 4, rubber valve 5, heavy-duty spring packing ring 6, self-locking nut 7, valve seat 8 and valve body 9, O-ring seals 3 is enclosed within push rod 2 seal grooves, spring 4 is enclosed within on the push rod 2, push rod 2 is packed in the valve body 9, again rubber valve 5 is enclosed within push rod 2 one ends, and also tight with heavy-duty spring packing ring 6 and self-locking nut 7.Put rectangular seal on the valve seat 8, be connected with valve body with two construction bolts and spring washer again.Sealing nut 1 is spun on valve body 9 neck ends, and handle is spun on the top of push rod 2.The lower surface of rubber valve 5 and valve seat endoporus upper surface 12 are the fitting surface of the sealing of can fitting, the lower surface of rubber valve 5 is the plane, has the outstanding ring 10 of a circle valve seat on the valve seat endoporus upper surface 12, the cross section of the outstanding ring 10 of valve seat is semicircle, the radius of the outstanding ring 10 of valve seat is 1～2 millimeter, and promptly the spacing of the upper surface of the peak of the outstanding ring 10 of valve seat and valve seat endoporus is 1～2 millimeter.When the driver presses lower handle, rubber valve 5 and valve seat endoporus upper surface 12 are fitted, because of valve seat 8 has the outstanding ring 10 of a circle valve seat, the outstanding ring of the valve seat of the lower surface of rubber valve 5 10 places compressive strain at this moment, close exhaust valve port, suction port leads to the spring for accumulating energy brake chamber through the air outlet.Compared with prior art, increase the flexible sealing face between rubber valve 5 and the valve seat 8, improved the sealability of product.The fastening mode that described push rod 2 is connected with rubber valve 5 adopts heavy-duty spring packing ring 6 and self-locking nut 7 and tight, a period of time is used in the engineering machinery hand braking valve entrucking that has overcome prior art, rubber valve and push rod attaching nut are easily loosening, the defective that causes product gas leakage, guaranteed that product in use, push rod 2 is difficult for becoming flexible with rubber valve 5, has increased reliability of products.
Claims (5)
1, a kind of engineering machinery hand braking valve, comprise handle (11), push rod (2), valve body (9), valve seat (8), rubber valve (5), the lower surface of rubber valve (5) and valve seat endoporus upper surface (12) are the fitting surface of the sealing of can fitting, it is characterized in that: the lower surface of described rubber valve (5) is the plane, and described valve seat endoporus upper surface (12) is provided with the seal ring structure of projection.
2, engineering machinery hand braking valve according to claim 1 is characterized in that: described seal ring structure is a circle outstanding ring of valve seat (10), and the cross section of the outstanding ring of this valve seat (10) is semicircle.
3, engineering machinery hand braking valve according to claim 1 and 2 is characterized in that: described push rod (2) lower end is provided with the self-locking nut (7) that compresses rubber valve (5).
4, engineering machinery hand braking valve according to claim 3 is characterized in that: be provided with heavy-duty spring packing ring (6) between the rubber valve (5) of described push rod (2) lower end and the self-locking nut (7).
5, engineering machinery hand braking valve according to claim 4 is characterized in that: the peak of the outstanding ring of described valve seat (10) and the spacing of valve seat endoporus upper surface (12) are 1～2 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200382237U CN201228776Y (en) | 2008-06-14 | 2008-06-14 | Hand-controlled brake valve for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200382237U CN201228776Y (en) | 2008-06-14 | 2008-06-14 | Hand-controlled brake valve for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201228776Y true CN201228776Y (en) | 2009-04-29 |
Family
ID=40633726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200382237U Expired - Fee Related CN201228776Y (en) | 2008-06-14 | 2008-06-14 | Hand-controlled brake valve for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201228776Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367876A (en) * | 2011-09-28 | 2012-03-07 | 芜湖市安芜汽车制动元件有限公司 | Hand-control brake valve |
-
2008
- 2008-06-14 CN CNU2008200382237U patent/CN201228776Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367876A (en) * | 2011-09-28 | 2012-03-07 | 芜湖市安芜汽车制动元件有限公司 | Hand-control brake valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuhu Tongli Solar Energy Co., Ltd. Assignor: Shengli Brake Co., Ltd., Wuhu Contract record no.: 2010340000154 Denomination of utility model: Hand-controlled brake valve for engineering machinery Granted publication date: 20090429 License type: Exclusive License Record date: 20100811 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20120614 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuhu Tongli Solar Energy Co., Ltd. Assignor: Shengli Brake Co., Ltd., Wuhu Contract record no.: 2010340000154 Denomination of utility model: Hand-controlled brake valve for engineering machinery Granted publication date: 20090429 License type: Exclusive License Record date: 20100811 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |