CN2429669Y - Full functional pneumatic lifting valve - Google Patents
Full functional pneumatic lifting valve Download PDFInfo
- Publication number
- CN2429669Y CN2429669Y CN 00242031 CN00242031U CN2429669Y CN 2429669 Y CN2429669 Y CN 2429669Y CN 00242031 CN00242031 CN 00242031 CN 00242031 U CN00242031 U CN 00242031U CN 2429669 Y CN2429669 Y CN 2429669Y
- Authority
- CN
- China
- Prior art keywords
- valve
- attachment hole
- oil
- valve body
- spring
- 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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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a full functional pneumatic lifting valve. A valve body 1 is inserted with an air cylinder 8. The valve body 1 is provided with an oil return connecting hole 2, a connecting hole 17 of the lower cavity of an oil cylinder, and a connecting hole 19 of the upper cavity of the oil cylinder. The valve body 1 is provided with a joint body one-way valve 4. The air cylinder 8 is provided with an inlet and an outlet connecting holes 9, 12. A valve core shaft 3 is arranged in the valve body 1. The left end of the valve core shaft is provided with an air piston 11. A spring base sleeve 13 and a holding screw 10 arranged in the spring base sleeve are arranged in the valve core shaft 3. A right restoring spring 14 is arranged between the spring base sleeve and the holding screw. A cone valve core 16 is arranged in the valve core shaft 3. A safety spring is arranged in the cone valve core 18. The right end of the valve core shaft 3 is provided with a left restoring spring 21.
Description
The utility model relates to full-function air control lifting valve technology field.
The air control lifting valve of dump truck use does not at present have in line check valve and safety valve, causes the self-unloading function singleness, can not the fragile component of self-insurance, the big manufacture cost height of volume in addition when oil pressure is too high.
The purpose of this utility model is a kind of full-function air control lifting valve of design, and one-way valve is housed on valve body, in poppet shaft, be equipped with poppet valve core make this valve can realize lifting, decline, in stop and shake the discharging repertoire, when oil pressure is too high and energy release self-insurance.
The utility model is achieved in that valve body 1 and cylinder 8 grafting and fastening by locknut 7, have oil return attachment hole 2 on the valve body 1, oil cylinder cavity of resorption attachment hole 17 and oil cylinder epicoele attachment hole 19, fittings body one-way valve 4 is housed on the valve body 1, on this valve 4 oil-feed attachment hole 5 is arranged, have intake and exhaust attachment hole 9 on the cylinder 8,12, poppet shaft 3 is arranged in valve body 1, its left end is equipped with gas piston 11, spring socket sleeve 13 is packed into the Cock screw 10 in it in poppet shaft 3, right Returnning spring 14 is arranged between them, poppet valve core 16 is arranged in the poppet shaft 3, safety spring 18 is arranged in it and pressure regulation screw plug 20 set pressures are arranged, poppet shaft 3 right-hand members are equipped with left Returnning spring 21, and circle distribution several safety valve oil inlet holes 22 on the poppet shaft 3.
The utility model has the advantages that: can realize dump truck lifting, decline, in stop and shake the discharging repertoire, when oil pressure is too high and can release self-insurance long service life, the small and exquisite low cost of manufacture of volume, design is unique, practicality simple to operate.
Below in conjunction with accompanying drawing, the utility model is described further with embodiment:
This accompanying drawing is the utility model structural representation.
In the accompanying drawing: 1, valve body, 2, the oil return attachment hole, 3, poppet shaft, 4, fittings body one-way valve, 5, the oil-feed attachment hole, 6, awl end Cock screw, 7, locknut, 8, cylinder, 9, the intake and exhaust attachment hole, 10, Cock screw, 11, gas piston, 12, intake and exhaust attachment hole, 13, spring socket sleeve, 14, right Returnning spring, 15, elastic scheibe, 16, poppet valve core, 17, oil cylinder cavity of resorption attachment hole, 18, safety spring, 19, oil cylinder epicoele attachment hole, 20, pressure regulation screw plug, 21, left Returnning spring, 22, the safety valve oil inlet hole.
When hand behaviour valve is moved raise-position to, pressurized air is to intake and exhaust attachment hole 12 air feed, to 9 exhausts of intake and exhaust attachment hole, gas piston 11 promotes poppet shaft 3 and moves to right, and connects railway carriage realization lifting by pressure oil and oil cylinder cavity of resorption attachment hole 17 that fittings body one-way valve 4 enters in the valve body 1; After giving rise to the top, handle behaviour valve handle repeats to move raise-position to falling the position, realizes shaking discharging thereby the impact that produces during by the hydraulic pressure commutation makes railway carriage produce shake.If dump truck overload, pressure oil several safety valve oil inlet holes 22 of circle distribution on the poppet shaft 3 enter and push open poppet valve core 16, realize safe overflow.
Move to when falling when hand behaviour valve, pressurized air is to intake and exhaust attachment hole 9 air feed, and to 12 exhausts of intake and exhaust attachment hole, gas piston 11 drives poppet shaft 3 and moves to left, and oil cylinder epicoele attachment hole 19 and oil cylinder cavity of resorption attachment hole 17 are connected with oil return attachment hole 2 and realized descending.
When hand behaviour valve is moved off-position to, 9,12 exhausts simultaneously of intake and exhaust attachment hole, poppet shaft 3 is under left and right sides Returnning spring 21,14 promotes, reset to the neutral position, this moment, oil cylinder cavity of resorption attachment hole 17 was cut off by poppet shaft 3, and railway carriage stops in realizing, lifting and decline process are stopped in all can realizing.
Claims (1)
1, full-function air control lifting valve, it is characterized in that: valve body (1) is pegged graft with cylinder (8) and is fastening by locknut (7), have oil return attachment hole (2) on the valve body (1), oil cylinder cavity of resorption attachment hole (17) and oil cylinder epicoele attachment hole (19), fittings body one-way valve (4) is housed on the valve body (1), oil-feed attachment hole (5) is arranged on this valve (4), cylinder has intake and exhaust attachment hole (9 on (8), 12), poppet shaft (3) is arranged in valve body (1), its left end is equipped with gas piston (11), spring socket sleeve (13) is packed into the Cock screw (10) in it in poppet shaft (3), right Returnning spring (14) is arranged between them, poppet valve core (16) is arranged in the poppet shaft (3), safety spring (18) is arranged in it and pressure regulation screw plug (20) set pressure is arranged, poppet shaft (3) right-hand member is equipped with left Returnning spring (21), and poppet shaft (3) goes up circle distribution and several safety valve oil inlet holes (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00242031 CN2429669Y (en) | 2000-07-04 | 2000-07-04 | Full functional pneumatic lifting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00242031 CN2429669Y (en) | 2000-07-04 | 2000-07-04 | Full functional pneumatic lifting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2429669Y true CN2429669Y (en) | 2001-05-09 |
Family
ID=33602302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00242031 Expired - Fee Related CN2429669Y (en) | 2000-07-04 | 2000-07-04 | Full functional pneumatic lifting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2429669Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852876A (en) * | 2012-09-24 | 2013-01-02 | 安徽池州市骏力机械科技有限公司 | Engineering machine, hydraulic lifting system thereof and reversing valve of hydraulic lifting system |
| CN112709726A (en) * | 2021-01-06 | 2021-04-27 | 宋丙臣 | Hydraulic cylinder with exhaust function |
-
2000
- 2000-07-04 CN CN 00242031 patent/CN2429669Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852876A (en) * | 2012-09-24 | 2013-01-02 | 安徽池州市骏力机械科技有限公司 | Engineering machine, hydraulic lifting system thereof and reversing valve of hydraulic lifting system |
| CN112709726A (en) * | 2021-01-06 | 2021-04-27 | 宋丙臣 | Hydraulic cylinder with exhaust function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| FG1K | Grant of utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |