CN103615422B - A kind of decompression overflow valve for sanitation cart - Google Patents
A kind of decompression overflow valve for sanitation cart Download PDFInfo
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- CN103615422B CN103615422B CN201310644737.2A CN201310644737A CN103615422B CN 103615422 B CN103615422 B CN 103615422B CN 201310644737 A CN201310644737 A CN 201310644737A CN 103615422 B CN103615422 B CN 103615422B
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- oil
- pressure
- disc brush
- spool
- oil cylinder
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Abstract
A kind of decompression overflow valve for sanitation cart, including valve body, spool, pressure spring A, nut, disc brush, described valve body lower portion is provided with screw plug, spool, pressure spring A, pressure regulation screw mandrel A the most from right to left；Upper lateral is provided with spiral shell seat, valve seat, adjusting pressuring valve core, pressure spring B, pressure regulation screw mandrel B from right to left；It is provided with nut on pressure regulation screw mandrel A and pressure regulation screw mandrel B.The present invention controls oil cylinder makes the disc brush on cleaning road surface rise and fall with the height on road surface during sanitation cart is advanced and lift flexibly, makes disc brush and road surface remain good contact thus reaches preferably to clean effect.
Description
Technical field
The present invention relates to valve series products, particularly relate to a kind of decompression overflow valve for sanitation cart, clean for sanitation cart
In the hydraulic system on road surface, it is used for controlling oil cylinder and makes the disc brush on cleaning road surface rise with the height on road surface during sanitation cart is advanced
Lie prostrate and lift flexibly, make disc brush and road surface remain good contact thus reach preferably to clean effect.
Background technology
Disc brush on existing domestic sanitation cart uses spring or chain to control, and the former controls disc brush and ground by the elastic force of spring
Contact, its shortcoming is that elastic force can change with tensile elongation, crosses conference and makes disc brush depart from ground not have a cleaning effect, the least then
Make disc brush weight on the ground, the abrasion of disc brush can be accelerated, even if it is certain to select its scope of application of suitable spring also can be subject to
Limit；The latter keeps it to contact with ground appropriateness by manual adjustment chain lifting disc brush, but is difficult to when ground is uneven
Accomplish to adjust at any time, thus the effect of cleaning can be directly affected.
Summary of the invention
It is an object of the invention to provide a kind of decompression overflow valve for sanitation cart, be used for controlling oil cylinder and make cleaning road surface
Disc brush rises and falls with the height on road surface during sanitation cart is advanced and lifts flexibly, makes disc brush and road surface remain good contact
Thus reach preferably to clean effect.
The present invention is achieved in that a kind of decompression overflow valve for sanitation cart, including valve body, spool, pressure spring
A, nut, disc brush, it is characterised in that: described valve body lower portion is provided with screw plug, spool, pressure spring A, tune the most from right to left
Silk pressing bar A；Upper lateral is provided with spiral shell seat, valve seat, adjusting pressuring valve core, pressure spring B, pressure regulation screw mandrel B from right to left；Pressure regulation screw mandrel
It is provided with nut on A and pressure regulation screw mandrel B.
Being provided with oil inlet P at the spool of the body base right side of the present invention, the right side, top is provided with oil-out A, left
Face is provided with overfall T.
Oil groove and the oilhole that intersects vertically it is provided with in the middle part of spool of the present invention.
Valve seat of the present invention is provided with horizontal oilhole.
Spiral shell seat of the present invention is provided with the oilhole that intersects vertically.
The present invention controls oil cylinder makes the disc brush on cleaning road surface clever with the height fluctuating on road surface during sanitation cart is advanced
Live and lift, make disc brush and road surface remain good contact thus reach preferably to clean effect.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Fig. 2 is that sanitation cart cleans section hydraulic schematic diagram.
Fig. 3 is that sanitation cart disc brush spring controls schematic diagram.
Fig. 4 sanitation cart disc brush chain controls schematic diagram.
In figure 1, valve body, 2, screw plug, 3, spool, 4, pressure spring A, 5, pressure regulation screw mandrel A, 6, nut, 7, pressure regulation screw mandrel B,
8, pressure spring B, 9, adjusting pressuring valve core, 10, valve seat, 11, spiral shell seat, 12, the opening X of valve body and valve core chamber, 13, O RunddichtringO,
14, oil cylinder, 15, disc brush, 16, decompression overflow valve, 17, spring, 18, chain.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings:
Referring to the drawings, a kind of decompression overflow valve for sanitation cart, including valve body 1, spool 3, pressure spring A4, nut 6,
Disc brush 15, it is characterised in that: described valve body 1 lower, transverse is provided with screw plug 2, spool 3, pressure spring A4, tune from right to left
Silk pressing bar A5；Upper lateral is provided with spiral shell seat 11, valve seat 10, adjusting pressuring valve core 9, pressure spring B8, pressure regulation screw mandrel B7 from right to left；
It is provided with nut 6 on pressure regulation screw mandrel A5 and pressure regulation screw mandrel B7.It is provided with oil-in at described valve body 1 bottom right spool 3
P, the right side, top is provided with oil-out A, and the left side is provided with overfall T.It is provided with oil groove in the middle part of described spool 3 and intersects vertically
Oilhole.Described valve seat 10 is provided with horizontal oilhole.Described spiral shell seat 11 is provided with the oilhole that intersects vertically.When being embodied as, this
Invention oil inlet P is system pressure, basic held stationary, and oil-out A is the outlet pressure of valve, is also the inlet-pressure of controlled oil cylinder
Power, this pressure should be adjusted as required, and T mouth is overfall i.e. oil sump tank.The hydraulic oil of oil inlet P is through valve body and spool
Between opening X 12 enter oil-out A, when oil-out A pressure is zero, spool 3 pressure spring 4 act under be in low order end,
Now the aperture of the opening X of valve body and valve core chamber is maximum, with the increase of oil-out A pressure, spool 3 under pressure oil effect to the left
Mobile, valve body tapers into the aperture of the opening X of valve core chamber, until close to closed mode, oil-out A pressure reaches balance
Point, regulation pressure regulation screw mandrel 5 can obtain oil-out A desirable pressure, can obtain overflowing of decompression overflow valve by regulation pressure regulation screw mandrel 7
Flowing pressure, this pressure should be slightly bigger than oil-out A and reaches pressure when balancing, keeps system worked well.When oil-out A pressure subtracts
Hour, spool 3 moves right under spring force, and oil-out A connects with oil inlet P, and oil inlet P starts fuel feeding, until going out
Hydraulic fluid port A reaches the pressure set；When oil-out A pressure increases, spool 3 is moved to the left, and oil inlet P is cut off with oil-out A, makes
It can not fuel feeding, now adjusting pressuring valve core 9 can be opened, and the oil spill of oil-out A is poured off.Sanitation cart cleans the work of section hydraulic system
Principle: disc brush operationally separately has three power, i.e. disc brush gravity G, oil cylinder lifting force in addition to being driven it by hydraulic motor and rotating
P1, ground supports power P2, triadic relation is the contact force that G=P1+P2, P2 are disc brush and ground, and this value can set as required
Fixed.When disc brush abrasion or to run into road surface recessed, when it departs from ground, whole actions of gravity are on oil cylinder, the now oil-feed of oil cylinder
I.e. the reduce pressure oil-out A pressure of overflow valve of mouth increases, and adjusting pressuring valve core 9 can open, and the oil spill in oil cylinder is poured off, and disc brush declines and ground
New balance is reached after the contact of face；Protruding when running into road surface, support force P2 can increase, and now the oil-in of oil cylinder i.e. reduces pressure overflow
The oil-out A pressure of valve reduces, and spool 3 moves right under spring force, and oil-out A connects with oil inlet P, oil inlet P
Starting to oil cylinder fuel feeding, disc brush reaches new balance when gradually moving up close to ground support force P2, so, no matter disc brush is met
To low spot or high point, by the regulation effect of decompression overflow valve in time to oil cylinder fuel feeding or the oil spill stream that makes oil cylinder so that disc brush
Lifting reaches and the effect of road surface holding good contact flexibly.
Claims (1)
1. for the decompression overflow valve of sanitation cart, including valve body (1), spool (3), pressure spring A(4), nut (6), dish
Brush (15), it is characterised in that: described valve body (1) lower, transverse is provided with screw plug (2), spool (3), pressure spring from right to left
A(4), pressure regulation screw mandrel A(5)；Upper lateral is provided with spiral shell seat (11), valve seat (10), adjusting pressuring valve core (9), pressure regulation bullet from right to left
Spring B(8), pressure regulation screw mandrel B(7)；Pressure regulation screw mandrel A(5) and pressure regulation screw mandrel B(7) on be provided with nut (6);Described valve body
(1) bottom right spool (3) place is provided with oil inlet P, and the right side, top is provided with oil-out A, and the left side is provided with overfall T;Institute
Spool (3) middle part stated is provided with oil groove and the oilhole that intersects vertically;Described valve seat (10) is provided with horizontal oilhole;Described
Spiral shell seat (11) is provided with the oilhole that intersects vertically；Described disc brush (15) is operationally another in addition to being driven it by hydraulic motor and rotating
Have three power, i.e. disc brush gravity G, oil cylinder lifting force P1, ground supports power P2, triadic relation be G=P1+P2, P2 be disc brush with
The contact force on ground；When disc brush abrasion or to run into road surface recessed, when it departs from ground, whole actions of gravity are on oil cylinder, now
I.e. the reduce pressure oil-out A pressure of overflow valve of the oil-in of oil cylinder increases, and adjusting pressuring valve core (9) can open, and the oil spill in oil cylinder is poured off,
Disc brush decline reaches new balance with ground after contacting；Protruding when running into road surface, support force P2 can increase, now the oil-feed of oil cylinder
Mouth i.e. reduce pressure overflow valve oil-out A pressure reduce, spool (3) moves right under spring force, oil-out A and oil-in
P connects, and oil inlet P starts to oil cylinder fuel feeding, and disc brush reaches new balance when gradually moving up close to ground support force P2, this
Sample, no matter disc brush runs into low spot or high point, by the regulation effect of decompression overflow valve in time to oil cylinder fuel feeding or the oil that makes oil cylinder
Overflow so that disc brush lift flexibly reach and road surface keep good contact effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310644737.2A CN103615422B (en) | 2013-12-05 | 2013-12-05 | A kind of decompression overflow valve for sanitation cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310644737.2A CN103615422B (en) | 2013-12-05 | 2013-12-05 | A kind of decompression overflow valve for sanitation cart |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103615422A CN103615422A (en) | 2014-03-05 |
| CN103615422B true CN103615422B (en) | 2016-09-21 |
Family
ID=50166136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310644737.2A Active CN103615422B (en) | 2013-12-05 | 2013-12-05 | A kind of decompression overflow valve for sanitation cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103615422B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6325467B1 (en) * | 1998-01-09 | 2001-12-04 | Continental Teves Ag & Co., Ohg | Pressure control valve, in particular for the pressure fluid control in slip-controlled, hydraulic brake systems |
| CN2477882Y (en) * | 2001-04-29 | 2002-02-20 | 山东工程机械厂 | Multifunctional prefill valve |
| CN201232785Y (en) * | 2008-05-08 | 2009-05-06 | 周重威 | Ultra-high pressure overflow valve |
| CN201326599Y (en) * | 2008-12-29 | 2009-10-14 | 泸州长江液压件成套生产有限公司 | Pneumatic control multi-way directional valve |
| CN102072213A (en) * | 2010-10-22 | 2011-05-25 | 山东泰丰液压股份有限公司 | Pressure feedback secondary pilot control plugged-in type proportion relief valve system |
-
2013
- 2013-12-05 CN CN201310644737.2A patent/CN103615422B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6325467B1 (en) * | 1998-01-09 | 2001-12-04 | Continental Teves Ag & Co., Ohg | Pressure control valve, in particular for the pressure fluid control in slip-controlled, hydraulic brake systems |
| CN2477882Y (en) * | 2001-04-29 | 2002-02-20 | 山东工程机械厂 | Multifunctional prefill valve |
| CN201232785Y (en) * | 2008-05-08 | 2009-05-06 | 周重威 | Ultra-high pressure overflow valve |
| CN201326599Y (en) * | 2008-12-29 | 2009-10-14 | 泸州长江液压件成套生产有限公司 | Pneumatic control multi-way directional valve |
| CN102072213A (en) * | 2010-10-22 | 2011-05-25 | 山东泰丰液压股份有限公司 | Pressure feedback secondary pilot control plugged-in type proportion relief valve system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103615422A (en) | 2014-03-05 |
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