CN2690642Y

CN2690642Y - Hydraulic integrated block

Info

Publication number: CN2690642Y
Application number: CN 200420024928
Authority: CN
Inventors: 仇九桃; 汤明凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-23
Filing date: 2004-02-23
Publication date: 2005-04-06
Anticipated expiration: 2014-02-23

Abstract

Disclosed is a new type hydraulic integrated block. The utility model integrates a group of oil suction nonreturn valves(4), a group of pilot controlled nonreturn valves(5), a group of overflow nonreturn valves(6) and an easing valve(7) together by an oil circuit path. The liquid controlled nonreturn valve(5) is composed of two nonreturn valves(18), a movable sliding block(15) and a valve cavity(16). The two nonreturn valves(18) are proximate with each other, and are arranged in the shared valve cavity(16), and the shared valve cavity(16) is divided into two parts by the sliding block(15). The valve cores(10) of the nonreturn valves(18) are positioned at both sides of the sliding block(15). When the system stops working, the pressure of the control oil circuit also decreased, and the liquid controlled nonreturn valve closes simultaneously to prevent the components from moving quickly and provide the function of self-locking. The hydraulic integrated block has simple inner structure, easy processing, low cost and small size; the hydraulic integrated block is convenient to install, and is used for the hydraulic drive apparatus to make the structure of the single machine compact.

Description

Hydraulic manifold block

Technical field

The utility model relates to a kind of hydraulic manifold block.

Background technique

Use some independent hydraulic element through regular meeting in the industrial system hydraulic transmission; as one-way valve, relief valve, Pilot operated check valve etc.; normally adopt screw thread or board-like Placement to be installed in the hydraulic system; but it is often bigger because of the monomer whose size; stack back machine shape size is bigger again; make hydraulic system when bulk is restricted, application is restricted.The hydraulic manifold block that ZL02218788X provides, its internal structure complexity, difficulty of processing height, cost are big.

Summary of the invention

The utility model provides a kind of hydraulic manifold block of two-way fuel feeding, and internal structure is simple, is easy to processing, cost is low, and overflow reliably, has auto-lock function.

The utility model is achieved in that a kind of hydraulic manifold block, it is with one group of oil sucting one-way valve, one group of Pilot operated check valve, one group of overflow one-way valve, a relief valve integrate by asphalt channel, Pilot operated check valve is arranged between the filler opening and integrated package oil outlet of flowline, and key is: Pilot operated check valve is made of two one-way valves, movable sliding block and valve pockets; Two one-way valve next-door neighbours are arranged in the shared valve pocket, and the spool that is separated into two-part, two one-way valves by movable sliding block is positioned at the both sides of slide block.

One-way valve is made of spring, steel ball, spool and valve seat, and flowline is communicated with the filler opening of Pilot operated check valve, and the oil outlet of Pilot operated check valve is the oil outlet and the oil return import of integrated package.

Pilot operated check valve is made of double check valve, removable slide block and shared valve pocket, fluid from X to X1 or Y to the Y1 free flow, oppositely then be cut off, if oil stream is by valve, for example from X to X1, pressure oil acts on the spool, valve core movement also promotes steel ball and lifts off a seat, when the controlled oil of one-way valve was opened, oil can circulate from Y1 to Y, and the relief valve upper end is provided with look nut.

The utility model concentrates in together a pair of oil suction road one-way valve, one group of Pilot operated check valve, one group of overflow one-way valve and a relief valve, and internal structure is simple, is convenient to processing, cost is low, its size is little, is applied to be convenient in the fluid pressure drive device install, and makes the unit compact structure.It is provided with overflow one-way valve and relief valve, and they are communicated with oil outlet tube, can be with pressure control at needed numerical value.It is provided with Pilot operated check valve, and when system quit work, control oil channel pressure also descended, and Pilot operated check valve is closed simultaneously, can make the rapid stop motion of parts, plays self-locking action.

Description of drawings

Fig. 1 is the utility model schematic diagram

Fig. 2 is the utility model plan view

Fig. 3 is the A-A sectional drawing of Fig. 2

Fig. 4 is the F-F sectional view of Fig. 2

Fig. 5 is the G-G sectional view of Fig. 4

Embodiment

According to Fig. 3 and shown in Figure 4, be provided with filler opening 1 below the utility model hydraulic manifold block housing, be provided with two oil outlets 2 and relief valve nut, adjusting screw 3 above the housing, the side is two oil sucting one-way valve nuts.

According to shown in Figure 1, hydraulic manifold block is made up of one group of oil sucting one-way valve 4, one group of Pilot operated check valve 5, one group of overflow one-way valve 6, a relief valve 7.

According to Fig. 3, Fig. 4 and shown in Figure 5, oil sucting one-way valve 4 is made up of spring and steel ball, overflow one-way valve 6 also is made up of spring and steel ball, Pilot operated check valve 5 is by double check valve 18, removable slide block 15 and shared valve pocket 16 constitute, and two one-way valve 18 next-door neighbours are arranged in the shared valve pocket 16, are separated into two-part by movable sliding block 15, the spool 10 of two one-way valves 18 is positioned at slide block 15 both sides, and one-way valve 18 is made of spring 8, steel ball 9, spool 10 and valve seat 11.Relief valve 7 is made up of spring and spool, and there is pressure regulating screw 3 upper end, can set up spring force as required, and the valve body at spool position is connected with flow-off.The filler opening 1 of hydraulic manifold block is connected with inflow pipeline 12, the end of inflow pipeline 12 is communicated with the filler opening of two oil sucting one-way valves 4, the oil outlet of each oil sucting one-way valve 4 is communicated with two-way pump pipeline 13, and each two-way pump pipeline 13 is connected with flowline 14.Each flowline 14 middle part is communicated with the filler opening of Pilot operated check valve 5, and the oil outlet of Pilot operated check valve 5 is the oil outlet 2 and the oil return import of integrated package.The end of flowline 14 is communicated with the filler opening of overflow one-way valve 6, the oil outlet of overflow one-way valve 6 is communicated with relief valve 7 filler openings by overflow pipe 17, when system works, two-way pump is through filler opening 1 oil suction in the fuel tank, open oil sucting one-way valve 4, through two-way pump pipeline 13 by pump in after the circulation, two-way pump pipeline 13 to opposite side enters integrated package, the oil that enters integrated package enters overflow one-way valve 6 through oil discharge passage 14 and adjusts oil pressure by relief valve 7, is flowed out by Pilot operated check valve 5 through oil discharge passage 14 through the oil after the pressure regulation.Oil in the oil discharge passage 14 acts on the spool 10 at the same time, and spool 10 motions and promotion steel ball 9 lift off a seat 11, and when one-way valve 18 controlled oil were opened, oil can circulate from Y1 to Y.One-way valve 18 makes integrated package be able to oil return.The oil that returns by after relief valve 7 overflows, circulates via two-way pump again.When two-way pump quits work, the two-way pump fuel cut-off, pumping pressure descends, and control oil channel pressure also descends, and Pilot operated check valve 5 is closed simultaneously, makes the rapid stop motion of moving element, plays self-locking action.

Claims

1, a kind of hydraulic manifold block, it is with one group of oil sucting one-way valve (4), one group of Pilot operated check valve (5), one group of overflow one-way valve (6), a relief valve (7) integrate by asphalt channel, Pilot operated check valve (5) is arranged between the filler opening and integrated package oil outlet (2) of flowline (14), it is characterized in that: Pilot operated check valve (5) is made of two one-way valves (18), movable sliding block (15) and valve pocket (16); Two one-way valves (18) next-door neighbours is arranged in the shared valve pocket (16), and the spool (10) that is separated into two-part, two one-way valves (18) by movable sliding block (15) is positioned at the both sides of slide block (15).

2, hydraulic manifold block according to claim 1, it is characterized in that: one-way valve (18) is made of spring (8), steel ball (9), spool (10) and valve seat (11), flowline (14) is communicated with the filler opening of Pilot operated check valve (5), and the oil outlet of Pilot operated check valve (5) is the oil outlet (2) and the oil return import of integrated package.