CN208997441U - A kind of novel 3 position-5 way double air controlled reversal valve - Google Patents

Abstract

The utility model relates to a kind of novel 3 position-5 way double air controlled reversal valves, it is characterized by comprising valve plate, valve body, valve rod, two air-operated pilot valves, a piston is fixedly mounted in the both ends of valve rod respectively, an end cap is fixedly mounted in the both ends of valve body respectively, valve inner cavity is divided into five valve chambers by six be mounted in valve body combination mat sealing rings disposed in parallel, valve body is fixedly mounted on valve plate top, valve rod movably covers in six combination mat sealing rings, and two air-operated pilot valves are respectively and fixedly installed to top end of the valve body.The beneficial effects of the utility model are: generating relative motion using two pneumatic pilot-valve control valve rods and valve body, realizes and traffic organising is carried out to the fluid circuit being connected with 3 position-5 way double air controlled reversal valve；Since pneumatic pilot-valve is driven using gas signal, so that entire 3 position-5 way double air controlled reversal valve be made not need using power supply, occasion existing for power supply can not allowed to use.

Description

A kind of novel 3 position-5 way double air controlled reversal valve

Technical field

The utility model relates to reversal valve field more particularly to a kind of novel 3 position-5 way double air controlled reversal valves.

Background technique

Reversal valve is the directional control valve with two or more liquid forms and more than two ports.It is to realize hydraulic oil The valve of stream, the communication of gas, cutting and commutation and discharge degree and sequentially-operating control.By spool (valve rod) and valve body Relative motion directional control valve.There are rotary valve and two kinds of side valve type.The operating position number point stopped in valve body by spool It is two, three etc.；It is divided into two-way, threeway, four-way, five logical and six is logical etc. by the oil circuit number being connected with valve body；By operation spool The mode of movement has manual, motor-driven, the electronic, patterns such as surge, is electro-hydraulic.

General 3 position-5 way valve is the movement by being mounted on the two of valve body both ends magnet control spools, but Some not allow occasion existing for power supply, traditional electrodynamic type reversal valve cannot be applicable in.

Utility model content

The purpose of the utility model is to overcome problem above of the existing technology, and it is double to provide a kind of novel 3 position-5 way Pneumatic reversal valve.

To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions:

A kind of novel 3 position-5 way double air controlled reversal valve, including valve plate, valve body, valve rod, two air-operated pilot valves, the valve A piston is fixedly mounted in the both ends of bar respectively, and an end cap, the valve plate top is fixedly mounted in the both ends of the valve body respectively Center is opened up there are five venthole A in one line, and the valve inner cavity is arranged in parallel by six be mounted in valve body Combination mat sealing ring be divided into five valve chambers, the corresponding body base of each valve chamber is equipped with a venthole B, the valve Body is fixedly mounted on valve plate top, and corresponds venthole B and venthole A, and the valve rod is movably covered at six In combination mat sealing ring, two air-operated pilot valves are respectively and fixedly installed to top end of the valve body, are equipped with two components in the valve body The control gas passage not being connected with two end cap internal cavities, gas interface A points of two control of each air-operated pilot valve It is not connected to each other with two control gas interface B of one group of control gas passage.

Preferably, the parallel annular groove of two circles is equipped in the middle part of the valve rod, two enclose between the minimum of the annular grooves Gauge is less than from the spacing distance being greater than between the adjacent combination mat sealing ring of any two, the width of every circle annular groove Spacing distance between the adjacent combination mat sealing ring of any two.

Preferably, the anteriomedial of the valve plate is equipped with an air inlet, and the front part sides of the valve plate are respectively equipped with one A exhaust outlet, the rear portion of the valve plate are set there are two connecing port for what is connect with executive component, the air inlet, exhaust outlet, Port is connect to be connected with the venthole A of opposite position in valve plate respectively.

Preferably, bushing is installed in the end cap, a centering piston is also fixedly mounted in the both ends of the valve rod respectively, The centering piston is connect with bushing middle slip.

Preferably, it is set in the annular groove of the centering piston outer periphery and y-type seal ring is installed.

Preferably, cushion, the end of the cushion face valve rod are fixedly installed on the inside of the end cap.

Preferably, spacer is installed in the valve chamber.

Preferably, the air-operated pilot valve is two-position three-way normal-opened type air-operated pilot valve.

The beneficial effects of the utility model are: relative motion is generated using two pneumatic pilot-valve control valve rods and valve body, It realizes and traffic organising is carried out to the fluid circuit being connected with 3 position-5 way double air controlled reversal valve；Since pneumatic pilot-valve is believed using gas Number driving, so that entire 3 position-5 way double air controlled reversal valve be made not need using power supply, field existing for power supply can not allowed It closes and uses.

Detailed description of the invention

Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application, The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model It limits.In the accompanying drawings:

Fig. 1 is the structural representation that 3 position-5 way double air controlled reversal valve is longitudinal sectional along its long axis direction in the utility model embodiment Figure；

Fig. 2 is the structural representation in the utility model embodiment after the incision of 3 position-5 way double air controlled reversal valve lateral parts Figure；

Fig. 3 is the positive structure schematic of 3 position-5 way double air controlled reversal valve in the utility model embodiment；

Fig. 4 is structural schematic diagram behind 3 position-5 way double air controlled reversal valve in the utility model embodiment.

Figure label explanation: 1- valve plate, 2-O shape sealing ring, 3- end cap, 4- valve body, 5- valve chamber, 6- cushion, 7-O shape Circle, 8- combination mat sealing ring, 9- spacer, 10- air-operated pilot valve, 11- annular groove, 12- centering piston, 13- valve rod, 14- are living Plug, 15-Y type sealing ring, 16-Y type sealing ring, 17- bushing, 18-O shape circle, 19- dust plug, 20- air inlet, 21- exhaust outlet, 22- connects port, 23- control gas passage, 24- venthole A, 25- venthole B.

Specific embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in detail.

As shown in Figures 1 to 4, a kind of novel 3 position-5 way double air controlled reversal valve, including valve plate 1, valve body 4, valve rod 13, two A piston 14 is fixedly mounted respectively, is set in the annular groove of piston outer periphery and is equipped with Y for air-operated pilot valve 10, the both ends of valve rod Type sealing ring 15, the both ends of valve body 4 are fixedly mounted an end cap 3 respectively, and 1 top center of valve plate opens up that there are five in one line Venthole A24,4 internal cavities of valve body are divided into five by six be mounted in valve body 4 combination mat sealing rings 8 disposed in parallel Valve chamber 5, corresponding 4 bottom of valve body of each valve chamber 5 are equipped with a venthole B25, and valve body 4 is fixedly mounted on 1 top of valve plate, and Correspond venthole B25 and venthole A24, valve rod 13 movably covers in six combination mat sealing rings 8, two gas controls Pilot valve 10 is respectively and fixedly installed to 4 top of valve body, be connected with 3 internal cavities of two end cap respectively in valve body 4 equipped with two groups Gas passage 23 is controlled, control gas passage 23 includes a plenum duct and a getter channel, and plenum duct is first by gas control Gas in pilot valve 10, which is sent into end cap, pushes piston 14 and valve rod 13 to move, and the gas collection in end cap 3 is arrived in getter channel In air-operated pilot valve 10, the two of each air-operated pilot valve 10 control two of gas interface A respectively with one group of control gas passage 23 A control gas interface B is connected to each other.The seam crossing of venthole A and venthole B is equipped with O-ring seals 2, end cap 3 and valve body 4 Seam crossing is equipped with O-ring 7.

The parallel annular groove 11 of two circles is equipped in the middle part of valve rod 13, the minimum separation distances of two ring annular grooves 11 are greater than Spacing distance between the adjacent combination mat sealing ring 8 of any two, and the minimum separation distances of two ring annular grooves 11 are small The width of spacing distance between the alternate combination mat sealing ring 8 of any two, every ring annular groove 11 is less than any two The spacing distance of spacing distance between adjacent combination mat sealing ring 8,3 inside of 14 end of piston and end cap is less than annular groove 11 width, greater than the thickness of combination mat sealing ring 8.

The anteriomedial of valve plate 1 is equipped with an air inlet 20, and the front part sides of valve plate 1 are respectively equipped with an exhaust outlet 21, The rear portion of valve plate 1 is set there are two connecing port 22 for what is connect with executive component, and air inlet 20, exhaust outlet 21 connect port 22 and divide It is not connected with the venthole A of opposite position in valve plate 1；Air inlet 20, connects port 22 when not in use at exhaust outlet 21, Air inlet 20, exhaust outlet 21 connect and fill in dust plug 19 in port 22 to prevent dust or sundries from entering；Air inlet 20, exhaust outlet 21, the end for connecing port 22 is installed by one O-ring 18 respectively.

Bushing 17 is installed, a centering piston 12, centering piston is also fixedly mounted in the both ends of valve rod 13 respectively in end cap 3 12 connect with 17 middle slip of bushing, are set in the annular groove of 12 periphery of centering piston and are equipped with y-type seal ring 16, herein Y-type seal ring 16 between middle piston 12 and bushing 17 for sealing.

The inside of end cap 3 is fixedly installed with cushion 6, and the end of 6 face valve rod 13 of cushion, cushion 6 is in valve rod 13 The piston 14 of end works as a buffer when contacting with end cap 3.

Spacer 9 is installed, spacer 9 is supported and fixes to combination mat sealing ring 8, improves combination mat sealing in valve chamber 5 The stability of circle 8.

Air-operated pilot valve 10 is two-position three-way normal-opened type air-operated pilot valve.

When two air-operated pilot valves all without gas signal when, valve rod keep in position；After an air-operated pilot valve has gas signal, The air-operated pilot valve, which introduces gas into coupled logical control gas passage, drives valve rod mobile to the other side；When another After air-operated pilot valve has gas signal, which introduces gas into coupled logical control gas passage and drives valve rod It is mobile to the other side；When two air-operated pilot valves have gas signal and gas signal phase simultaneously as valve rod both ends are simultaneously by phase Gas pressure with size makes position in valve rod holding.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.

Claims (8)

1. a kind of novel 3 position-5 way double air controlled reversal valve, it is characterised in that: including valve plate, valve body, valve rod, two gas control guides A piston is fixedly mounted in valve, the both ends of the valve rod respectively, and an end cap is fixedly mounted in the both ends of the valve body respectively, described Valve plate top center is opened up there are five venthole A in one line, and the valve inner cavity is by be mounted in valve body six Combination mat sealing ring disposed in parallel is divided into five valve chambers, and the corresponding body base of each valve chamber is equipped with a venthole B, the valve body are fixedly mounted on valve plate top, and correspond venthole B and venthole A, and the valve rod is moveable It covers in six combination mat sealing rings, two air-operated pilot valves are respectively and fixedly installed to top end of the valve body, set in the valve body There are two groups of control gas passages being connected respectively with two end cap internal cavities, two control gases of each air-operated pilot valve Interface A is connected to each other with two control gas interface B of one group of control gas passage respectively.

2. novel 3 position-5 way double air controlled reversal valve according to claim 1, it is characterised in that: be equipped in the middle part of the valve rod The parallel annular groove of two circles, it is close that the minimum separation distances of the two circle annular grooves are greater than the adjacent combination mat of any two The width of spacing distance between seal, every circle annular groove is less than between the adjacent combination mat sealing ring of any two Spacing distance.

3. novel 3 position-5 way double air controlled reversal valve according to claim 1, it is characterised in that: in the front of the valve plate Between be equipped with an air inlet, the front part sides of the valve plate are respectively equipped with an exhaust outlet, there are two the rear portion of the valve plate is set The port that connects for being connect with executive component, the air inlet, exhaust outlet, connect port respectively in valve plate opposite position it is logical Stomata A is connected.

4. novel 3 position-5 way double air controlled reversal valve according to claim 1, it is characterised in that: be equipped in the end cap A centering piston is also fixedly mounted in bushing, the both ends of the valve rod respectively, and the centering piston is connect with bushing middle slip.

5. novel 3 position-5 way double air controlled reversal valve according to claim 4, it is characterised in that: it is living to be set to the centering Y-type seal ring is installed in all annular grooves beyond the Great Wall.

6. novel 3 position-5 way double air controlled reversal valve according to claim 1, it is characterised in that: the inside of the end cap is solid Dingan County is equipped with cushion, the end of the cushion face valve rod.

7. novel 3 position-5 way double air controlled reversal valve according to claim 1, it is characterised in that: be equipped in the valve chamber Spacer.

8. novel 3 position-5 way double air controlled reversal valve according to claim 1, it is characterised in that: the air-operated pilot valve is Two-position three-way normal-opened type air-operated pilot valve.