CN202118022U - Integral type multiway valve - Google Patents
Integral type multiway valve Download PDFInfo
- Publication number
- CN202118022U CN202118022U CN2011202126646U CN201120212664U CN202118022U CN 202118022 U CN202118022 U CN 202118022U CN 2011202126646 U CN2011202126646 U CN 2011202126646U CN 201120212664 U CN201120212664 U CN 201120212664U CN 202118022 U CN202118022 U CN 202118022U
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- valve
- hydraulic fluid
- fluid port
- oil
- valve mechanism
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Abstract
An integral type multiway valve belongs to the technical field of forklifts, which comprises a valve body. An oil inlet valve mechanism, a lift valve mechanism and an inclined valve mechanism which are connected through inside oil passages are sequentially arranged inside the valve body from top to bottom in matching mode. The three mechanisms form a parallel-connection oil line through a round-hole oil passage below one-way valves. The one-way valves are arranged in the middle of the two openings of the lift valve mechanism and the inclined valve mechanism Ai and Bi. An oil inlet opening P, a veering opening PF, working openings Ai and Bi and a return opening T are arranged on the valve body in matching mode. By adopting the technology, two parts and four pieces of the valve body are integrated, time for machining is decreased, and work efficiency is enhanced. High-strength bunched blots, gaskets, nuts and seal parts between the pieces are canceled so that cost is saved, valve opening deformation between the pieces caused by screwing of the bunched bolts is also removed, diamond reamer process after combination is reduced, continuity of processing is ensured, and faults of oil leakage are completely removed.
Description
Technical field
The utility model belongs to the fork truck technical field, is specifically related to a kind of good airproof performance, the integral multi-way valve that efficient height and cost are low.
Background technique
At present, the following fork truck multi-way valve of domestic 3T is the split blade type structure, owing to simple in structure, interchangeability are widely used in little tonnage fork truck, rig and each engineering machinery field well.But along with fast development of national economy, this product demand amount significantly increases, and the throughput of my company has satisfied not output; Present stage be badly in need of simple with process for machining, manufacturing efficiency is high, and product--monolithic construction substitutes the split blade type structure; Though split blade type structure casting technique is simple, versatility good, its amount of machining is very big, will consider to seal, need the bolt string to adorn but also will solve because the valve opening distortion of tightening generation of string dress bolt has not only increased operation between every; And need other accessories; Cost is high, and sealability is low, and Security is bad.
The model utility content
To the problems referred to above that exist in the existing technology, the purpose of the utility model is to provide a kind of good seal performance, the integral multi-way valve that efficient height and cost are low.
Described a kind of integral multi-way valve; Comprise valve body; It is characterized in that being equipped with from top to bottom successively in the described valve body oiling valve mechanism, play lift-valve gear and inclined valve mechanism, the circular hole oil duct of described three kinds of mechanisms below one-way valve forms parallelly connected oil circuit; Described lift-valve gear and the Ai of inclined valve mechanism, two mouthfuls of centres of Bi are provided with one-way valve; Be equipped with oil inlet P on the described valve body, turn to a mouthful PF, working hole Ai, Bi, oil return inlet T.Oil inlet P communicates with oil return inlet T through middle oil duct during meta; The P mouth communicates with working hole Ai or Bi during the valve rod switching-over, thereby gives actuator's fuel feeding.
Described a kind of integral multi-way valve is characterized in that being equipped with in the described oiling valve mechanism and turns to a mouthful one-way valve, shunting guiding valve, main relief valve, turns to relief valve.
Described a kind of integral multi-way valve is characterized in that being equipped with in described the lift-valve gear the hoist valve rod and the one-way valve that hoists.
Described a kind of integral multi-way valve is characterized in that being equipped with inclination valve rod, angled unidirectional valve and self-locking spool in the described inclined valve mechanism.
Above-mentioned a kind of integral multi-way valve comprises valve body, is equipped with oiling valve mechanism in the described valve body successively from top to bottom, plays lift-valve gear and inclined valve mechanism, and the circular hole oil duct of described three kinds of mechanisms below one-way valve forms parallelly connected oil circuit; Described lift-valve gear and the Ai of inclined valve mechanism, two mouthfuls of centres of Bi are provided with one-way valve; Be equipped with oil inlet P on the described valve body, turn to a mouthful PF, working hole Ai, Bi, oil return inlet T.Oil inlet P communicates with oil return inlet T through middle oil duct during meta; The P mouth communicates with working hole Ai or Bi during the valve rod switching-over, thereby gives actuator's fuel feeding.Described P mouth guarantees all the time that with hydraulic fluid port PF a certain amount of fluid communicates.The utility model is through adopting above-mentioned technology, and four valve bodies of bigeminy assemble the one valve body, reduce 30% machining time, improves work efficiency; Cancelled Sealing between high tenacity string dress bolt, packing ring, nut, sheet; Practice thrift cost, also eliminated between sheet because the valve opening distortion of tightening generation of string dress bolt reduces combination back Buddha's warrior attendant hinge operation; Guarantee the continuity of processing technology, and eliminate the fault of leakage of oil between sheet fully.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a L-L cross-sectional view among the utility model Fig. 1;
Fig. 3 is a M-M cross-sectional view among the utility model Fig. 1;
Fig. 4 is a N-N cross-sectional view among the utility model Fig. 1.
Among the figure: the 1-valve body, 2-oiling valve mechanism, 3-plays lift-valve gear, 4-inclined valve mechanism; 5-meta oil duct, 6-turns to a mouthful one-way valve, and 7-shunts guiding valve, the 8-valve rod that hoists; The 9-one-way valve that hoists, 10-ring shaped oil passage, 11-inclination valve rod, 12-angled unidirectional valve; 13-self-locking spool, 14-turns to relief valve, 15-master's relief valve.
Embodiment
Below in conjunction with Figure of description the utility model is done further to describe:
Shown in Fig. 1-4; A kind of integral multi-way valve; Comprise valve body 1, be equipped with oiling valve mechanism 2 in the described valve body 1 successively from top to bottom, play lift-valve gear 3 and inclined valve mechanism 4, described oiling valve mechanism 2, play a lift-valve gear 3 and be connected with ring shaped oil passage 10 through meta oil duct 5 respectively with inclined valve mechanism 4; Be equipped with oil inlet P, hydraulic fluid port PF, hydraulic fluid port A1, hydraulic fluid port A2, hydraulic fluid port B1, hydraulic fluid port B2, oil return inlet T on the described valve body 1; Communicate with oil return inlet T during described hydraulic fluid port P meta, described hydraulic fluid port P communicates with hydraulic fluid port PF all the time, during switching-over hydraulic fluid port P with respectively with hydraulic fluid port A1, hydraulic fluid port A2, hydraulic fluid port B1, hydraulic fluid port B2, communicate.Be equipped with in the described oiling valve mechanism 2 and turn to mouthful one-way valve 6 and shunting guiding valve 7, main relief valve 15, turn to relief valve 14.Be equipped with in described the lift-valve gear 3 hoist valve rod 8 with hoist one-way valve 9, be equipped with inclination valve rod 11, angled unidirectional valve 12 and self-locking spool 13 in the described inclined valve mechanism 4.
As shown in Figure 1, when forklift engine was worked, each valve rod was in meta; Pump comes the oil inlet P of oil to valve body 1; Be divided into two road binders, part oil arrives oil return inlet T oil sump tank, another road through valve body meta oil duct 5; Another part oil is shunted guiding valve 7 in oiling valve, open to turn to 6 to PF mouth to the commutators of mouthful one-way valve to realize fork-truck steering.Turn to relief valve 14 with the off-load of knuckle section oil when turning to when reaching maximum pressure, opening, thus protection steering system safety.
As shown in Figure 2, to do when action of hoisting when forklift door frame, the valve rod 8 that hoists is pulled out, and meta oil duct 5 is shut; Fluid is opened the one-way valve 9 that hoists on the valve body 1, gets into the oil duct 10 that goes in ring, through the valve rod 5 gear openings that hoist; Through the A1 mouth, the big chamber to lift oil tank hoists door frame.
As shown in Figure 3, when forklift door frame will descend, the valve rod 8 of hoisting advanced, and pump comes oil through middle oil duct oil return, the big cavity pressure oil of lift oil tank through the A1 mouth to the valve rod 8 gear back oil road T oil sump tanks that hoist.
As shown in Figure 4, when the forklift door frame tilting action, when pulling out inclination valve rod 11 (hypsokinesis); P2 (parallelly connected oil duct) oil is opened valve body 1 one-way valve 12 that tilts, and gets into the oil duct 10 that goes in ring, through inclination valve rod 11 gear openings; Through the A2 mouth to the dump ram loculus; Simultaneously, the big chamber of dump ram comes oil through B2 mouth inclination valve rod 11 openings, oil sump tank.When leaning forward, advance inclination valve rod 11, pressure oil is by inclination valve rod 11 openings, through the B2 mouth to the big chamber of dump ram.This moment, dump ram loculus pressure oil is pushed self-locking spool 13 open through inclination valve rod 11 some apertures, connects dump ram loculus and back oil road, and door frame is leaned forward.Self-locking spool 13 only has high pressure oil just can be pushed in ring shaped oil passage, thereby dump ram rod chamber fluid is communicated with oil return, realizes forward swing.When engine misses, no matter how to promote valve rod 11, door frame can not lean forward (no high pressure oil), plays self-locking action, and is safe and reliable.
The utility model assembles the one valve body with four valve bodies of bigeminy, though casting technique is complicated through adopting above-mentioned technology; But reduce 30% machining time, improve work efficiency, and cancelled Sealing between high tenacity string dress bolt, packing ring, nut, sheet; Practice thrift cost, eliminated between sheet because the valve opening distortion of tightening generation of string dress bolt reduces combination back Buddha's warrior attendant hinge operation; Guarantee the continuity of processing technology, eliminate the fault of leakage of oil between sheet fully, significantly reduce machining time; Save material, bolt, the flat seal of valve body and can not reduce the inter process turnover owing to assembling produces the valve opening distortion.
Claims (4)
1. integral multi-way valve; Comprise valve body (1); It is characterized in that being equipped with from top to bottom successively in the described valve body (1) oiling valve mechanism (2), play lift-valve gear (3) and inclined valve mechanism (4); Described oiling valve mechanism (2), a lift-valve gear (3) are connected with ring shaped oil passage (10) through meta oil duct (5) respectively with inclined valve mechanism (4); Be equipped with oil inlet P, hydraulic fluid port PF, hydraulic fluid port A1, hydraulic fluid port A2, hydraulic fluid port B1, hydraulic fluid port B2, oil return inlet T on the described valve body (1); Communicate with oil return inlet T during described hydraulic fluid port P meta, described hydraulic fluid port P communicates with hydraulic fluid port PF all the time, and P communicates with hydraulic fluid port A1, hydraulic fluid port A2, hydraulic fluid port B1, hydraulic fluid port B2 during switching-over.
2. a kind of integral multi-way valve according to claim 1, it is characterized in that being equipped with in the described oiling valve mechanism (2) turn to a mouthful one-way valve (6), the shunting guiding valve (7), main relief valve (15), turn to relief valve (14).
3. a kind of integral multi-way valve according to claim 1 is characterized in that being equipped with in described the lift-valve gear (3) valve rod that hoists (8) and the one-way valve that hoists (9).
4. a kind of integral multi-way valve according to claim 1 is characterized in that being equipped with in the described inclined valve mechanism (4) inclination valve rod (11), angled unidirectional valve (12) and self-locking spool (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202126646U CN202118022U (en) | 2011-06-22 | 2011-06-22 | Integral type multiway valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202126646U CN202118022U (en) | 2011-06-22 | 2011-06-22 | Integral type multiway valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118022U true CN202118022U (en) | 2012-01-18 |
Family
ID=45459091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202126646U Expired - Lifetime CN202118022U (en) | 2011-06-22 | 2011-06-22 | Integral type multiway valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118022U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452937A (en) * | 2013-09-11 | 2013-12-18 | 冯广建 | Multi-channel hydraulic control valve |
| CN104564888A (en) * | 2015-01-27 | 2015-04-29 | 第一拖拉机股份有限公司 | Zero-leakage multi-way valve for tractors |
| CN105864137A (en) * | 2016-06-17 | 2016-08-17 | 合肥长源液压股份有限公司 | Integral type priority multiway valve |
| CN108180182A (en) * | 2018-01-15 | 2018-06-19 | 河北工程大学 | A kind of all hydraulic caterpillar reverse circulation engineering drilling rig dedicated integrated valve group |
| CN109139596A (en) * | 2017-06-27 | 2019-01-04 | 比亚迪股份有限公司 | Fork truck tilts valve arrangement, multi-way valve and fork truck |
-
2011
- 2011-06-22 CN CN2011202126646U patent/CN202118022U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452937A (en) * | 2013-09-11 | 2013-12-18 | 冯广建 | Multi-channel hydraulic control valve |
| CN103452937B (en) * | 2013-09-11 | 2015-10-28 | 冯广建 | A kind of multiway hydraulic control valve |
| CN104564888A (en) * | 2015-01-27 | 2015-04-29 | 第一拖拉机股份有限公司 | Zero-leakage multi-way valve for tractors |
| CN104564888B (en) * | 2015-01-27 | 2016-09-07 | 第一拖拉机股份有限公司 | A kind of used with tractor zero leakage banked direction control valves |
| CN105864137A (en) * | 2016-06-17 | 2016-08-17 | 合肥长源液压股份有限公司 | Integral type priority multiway valve |
| CN109139596A (en) * | 2017-06-27 | 2019-01-04 | 比亚迪股份有限公司 | Fork truck tilts valve arrangement, multi-way valve and fork truck |
| CN109139596B (en) * | 2017-06-27 | 2020-03-31 | 比亚迪股份有限公司 | Forklift tilt valve structure, multi-way valve and forklift |
| CN108180182A (en) * | 2018-01-15 | 2018-06-19 | 河北工程大学 | A kind of all hydraulic caterpillar reverse circulation engineering drilling rig dedicated integrated valve group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |