CN217177014U

CN217177014U - Multi-way valve

Info

Publication number: CN217177014U
Application number: CN202123375907.0U
Authority: CN
Inventors: 陈宇
Original assignee: Nantong Aite Mechanical Equipment Co ltd
Current assignee: Nantong Aite Mechanical Equipment Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-12
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a multi-way valve, including the valve body and locate case and hydraulic fluid port in the valve body, the case is located valve body central authorities, the case includes preceding valve block, well valve block, back valve block, between preceding valve block and the well valve block, be equipped with ring channel I respectively in the middle of well valve block and the back valve block, ring channel II, preceding valve block front end is equipped with the connecting rod, the anterior piston of valve body is connected to the connecting rod, the push rod is connected to the piston front end, the carousel of locating the valve body front end is connected to the push rod, the motor is connected through the pivot in the carousel bottom, be equipped with the locating lever on the carousel, the cover is established the sleeve pipe on the locating lever. The utility model has the advantages that the independent driving structure consisting of the motor and the turntable is arranged on the side surface of the valve body, and the whole device is convenient to overhaul and maintain and convenient to use and operate by the control of the motor; a pressure monitoring meter is arranged to detect the oil pressure in the valve body in real time, so that the damage rate of the device is reduced; the oil outlet is provided with the current limiting device, so that the oil outlet amount can be controlled by the adjusting bolt according to the operation requirement, and the control is convenient.

Description

Multi-way valve

Technical Field

The utility model relates to a valve body field, in particular to multi-way valve.

Background

In hydraulic control, a multi-way reversing valve is used, the valve is controlled by the relative movement direction of a valve core and a valve body, the valve is divided into two-position, three-position and the like according to the number of working positions of the valve core staying in the valve body, the valve is divided into two-way, three-way, four-way, six-way and the like according to the number of oil ways connected with the valve body, the movement mode of the valve core is operated in a manual mode, a motor mode, an electric mode, a hydraulic mode, an electro-hydraulic mode and the like, the flow control of the existing multi-way valve is complicated, and the maintenance of a power device needs long time and is inconvenient.

The patent application of publication number CN203477448U discloses a three-position four-way valve and a braking system with the three-position four-way valve, which comprises a driving device, a valve body provided with a valve core cavity therein, and a slide valve located in the valve core cavity and adapted to the valve core cavity, wherein the valve body is provided with a high-pressure oil inlet, an oil return port, a low-pressure oil inlet and an oil outlet; the slide valve is respectively provided with an annular groove and a throttling groove; the slide valve can be respectively positioned at a middle position, a second position and a third position under the driving of the driving device. The device uses the solenoid valve as drive arrangement, uses after a period, and the device accuracy descends, and the device damages to overhaul inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a strong adaptability, maintenance simple operation's multiple unit valve.

The utility model adopts the technical proposal that:

the multi-way valve comprises a valve body, a valve element and an oil port, wherein the valve element and the oil port are arranged in the valve body, the valve element is located in the center of the valve body, the valve element comprises a front valve block, a middle valve block and a rear valve block, an annular groove I and an annular groove II are respectively arranged between the front valve block and the middle valve block and between the middle valve block and the rear valve block, the front end of the front valve block is provided with a connecting rod, the connecting rod is connected with a piston at the front part of the valve body, the front end of the piston is connected with a push rod, the push rod is connected with a turntable at the front end of the valve body, the bottom of the turntable is connected with a motor through a rotating shaft, a positioning rod is arranged on the turntable, and a sleeve is sleeved on the positioning rod.

Further, be equipped with oil inlet I, oil inlet II, oil return opening, oil-out on the valve body, oil inlet I, oil inlet II, oil return opening pass through the tube coupling oil-out, valve body 1 above-mentioned is equipped with pressure monitoring table, and oil pipe between oil inlet I, oil inlet II, oil return opening and the oil-out is led to the pressure monitoring table expert and is connected, is convenient for monitor valve body internal flow pressure.

Further, when the valve core is located at the front position, the oil inlet II is communicated with the oil outlet through the annular groove II, when the valve core is located at the rear position, the oil inlet I is communicated with the oil outlet through the annular groove I, and when the valve core is located at the middle position, the oil return opening is communicated with the oil outlet through the annular groove II.

Furthermore, the rear end of the rear valve block is provided with a limiting rod, the inner wall of the valve body 1 behind the limiting rod is provided with a sleeve rod, a reset spring is sleeved between the limiting rod and the sleeve rod, and the rigidity of the valve body is reduced.

Further, the side face of the oil outlet is provided with a flow limiting device which comprises a flow limiting block and a bolt, the bolt is connected with the outside of the valve body and is arranged in the flow limiting block in the oil outlet, and a sealing block is arranged at the joint of the outside of the valve body and the bolt, so that the oil outlet amount can be controlled conveniently.

Furthermore, a rotating ball connected with the tail end of the push rod is arranged in the piston, and the rotating ball moves forwards and backwards along with the push rod to rotate.

Further, a sealing ring is arranged between the piston and the valve body.

Furthermore, the front end of the valve body piston is provided with a limiting ring, and when the valve core is located at the front position, the front end of the piston is attached to the limiting ring.

The utility model has the advantages that: 1. the side surface of the valve body is provided with the independent driving structure consisting of the motor and the turntable, and the device is controlled by the motor, so that the whole device is convenient to overhaul and maintain, and convenient to use and operate;

2. a pressure monitoring meter is arranged to detect the oil pressure in the valve body in real time, so that the damage rate of the device is reduced;

3. the oil outlet is provided with the current limiting device, so that the oil outlet amount can be controlled by the adjusting bolt according to the operation requirement, and the control is convenient.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the valve core of the present invention located in the middle position;

FIG. 2 is a schematic structural view of the valve core of the present invention located at a forward position;

fig. 3 is the schematic structural diagram of the valve core located at the rear position.

Wherein: 1. a valve body; 2. a valve core; 3. an oil inlet I; 4. an oil inlet II; 5. an oil return port; 6. an oil outlet; 7. a motor; 8. positioning a rod; 9. a piston; 10. a limiting ring; 11. a seal ring; 12. a push rod; 13. a pressure monitoring meter; 14. a connecting rod; 15. an annular groove I; 16. an annular groove II; 17. a front valve block; 18. a middle valve block; 19. a rear valve block; 20. a sleeve; 21. rotating the rod; 22. a rotating shaft 23 and a limiting rod; 24. a loop bar; 25. a return spring; 26. rotating the beads; 27. a flow limiting block; 28. a bolt; 29. and (6) sealing the block.

Detailed Description

As shown in fig. 1-3, the multi-way valve includes a valve body, and a valve core and an oil port disposed in the valve body, the valve core 2 is located at the center of the valve body 1, the valve core 2 includes a front valve block 17, a middle valve block 18, a rear valve block 19, between the front valve block 17 and the middle valve block 18, an annular groove i 15 and an annular groove ii 16 are respectively disposed between the middle valve block 18 and the rear valve block 19, a connecting rod 14 is disposed at the front end of the front valve block 17, the connecting rod 14 is connected with a piston 9 at the front portion of the valve body 1, the front end of the piston 9 is connected with a push rod 12, the push rod 12 is connected with a turntable 21 disposed at the front end of the valve body, the bottom of the turntable 21 is connected with a motor 7 through a rotating shaft 22, a positioning rod 8 is disposed on the turntable 21, a sleeve 20 is sleeved on the positioning rod 8, an independent driving structure composed of the motor 7 and the turntable 21 is disposed at the side of the valve body 1, and is controlled by the motor 7, the device is convenient to maintain as a whole, and convenient to use and operate.

Be equipped with oil inlet I3, oil inlet II 4, oil return 5, oil-out 6 on the valve body 1, oil inlet I3, oil inlet II 4, oil return 5 pass through pipe connection oil-out 6, and valve body 1 the aforesaid is equipped with pressure monitoring table, and pressure monitoring table leads to the oil pipe of connecting between oil inlet I3, oil inlet II 4, oil return 5 and the oil-out 6. And a pressure monitoring meter 13 is arranged to detect the oil pressure in the valve body 1 in real time, so that the damage rate of the device is reduced.

When the device uses, carousel 21 passes through motor 7 control, reciprocating rotation, control push rod 12 promotes piston 9 displacement around, makes case 2 reciprocating motion in valve body 1, when case 2 is located the preceding position, oil inlet II 4 is through annular groove II 16 and oil-out 6 UNICOM, when case 2 is located the back position, oil inlet I3 is through annular groove I15 and oil-out 6 UNICOM, when case 2 is located the meso position, oil return opening 5 is through annular groove II 16 and oil-out 6 UNICOM.

The rear end of the rear valve block 19 is provided with a limiting rod 23, the inner wall of the valve body 1 behind the limiting rod 23 is provided with a loop bar 24, a reset spring 25 is sleeved between the limiting rod 23 and the loop bar 24, the reset spring 25 is used, the stress of the valve body 1 is dispersed, and the rigid damage is avoided.

The side surface of the oil outlet 6 is provided with a flow limiting device which comprises a flow limiting block 27 and a bolt 28, the bolt 28 is connected with the flow limiting block arranged in the oil outlet 6 from the outside of the valve body 1, a sealing block 29 is arranged at the joint of the outside of the valve body 1 and the bolt 28, when the flow is required to be controlled, the bolt 28 is adjusted, the blocking area of the flow limiting block 27 at the oil outlet 6 is controlled, and the operation is more convenient and rapid.

The piston 9 is internally provided with a rotating ball 30 connected with the tail end of the push rod 12, the rotating ball 26 moves back and forth along with the push rod 12 and rotates, the push rod 12 swings back and forth along with the positioning rod 8 under the rotation of the turntable 21, the piston 9 is pulled to move back and forth, and the rotating ball 26 drives the piston 9 to move back and forth, so that the piston 9 moves more smoothly.

A sealing ring is arranged between the piston 9 and the valve body 1. The front end of a piston 9 of the valve body 1 is provided with a limiting ring 10, and when the valve core 2 is located at a front position, the front end of the piston 9 is attached to the limiting ring 10 to limit the movement of the valve core 2.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to be included within the scope of the present invention as defined in the appended claims.

Claims

1. The multiple unit valve includes valve body and locates case and the hydraulic fluid port in the valve body, its characterized in that: the valve core is located valve body central authorities, and the case includes preceding valve piece, well valve piece, back valve piece, is equipped with ring channel I, ring channel II between preceding valve piece and the well valve piece, respectively in the middle of well valve piece and the back valve piece, preceding valve piece front end is equipped with the connecting rod, and the anterior piston of valve body is connected to the connecting rod, and the piston front end is connected the push rod, the carousel of locating the valve body front end is connected to the push rod, the motor is connected through the pivot in the carousel bottom, is equipped with the locating lever on the carousel, overlaps on the locating lever and establishes the sleeve pipe.

2. The multiplex valve of claim 1, wherein: the oil inlet I, the oil inlet II, the oil return port and the oil outlet are arranged on the valve body, the oil inlet I, the oil inlet II and the oil return port are connected with the oil outlet through pipelines, and the valve body is provided with a pressure monitoring meter which is connected with an oil pipe between the oil inlet I, the oil inlet II, the oil return port and the oil outlet.

3. The multiplex valve of claim 2, wherein: when the valve core is located at the front position, the oil inlet II is communicated with the oil outlet through the annular groove II, when the valve core is located at the rear position, the oil inlet I is communicated with the oil outlet through the annular groove I, and when the valve core is located at the middle position, the oil return opening is communicated with the oil outlet through the annular groove II.

4. The multiplex valve of claim 1, wherein: the rear valve block is characterized in that a limiting rod is arranged at the rear end of the rear valve block, a loop bar is arranged on the inner wall of the valve body behind the limiting rod, and a reset spring is sleeved between the limiting rod and the loop bar.

5. The multiplex valve of claim 2, wherein: the side surface of the oil outlet is provided with a flow limiting device which comprises a flow limiting block and a bolt, the bolt is connected with the flow limiting block arranged in the oil outlet from the outside of the valve body, and a sealing block is arranged at the joint of the outside of the valve body and the bolt.

6. The multiplex valve of claim 1, wherein: the piston is internally provided with a rotating ball connected with the tail end of the push rod, and the rotating ball moves back and forth along with the push rod and rotates.

7. The multiplex valve of claim 1, wherein: and a sealing ring is arranged between the piston and the valve body.

8. The multiplex valve of claim 1, wherein: the valve body piston front end is equipped with the spacing collar, and when the case was located the leading position, the piston front end pasted mutually with the spacing collar.