CN216692308U

CN216692308U - Novel pneumatic control hydraulic valve

Info

Publication number: CN216692308U
Application number: CN202123237909.3U
Authority: CN
Inventors: 陆海青; 陈金明; 黄旭
Original assignee: Jiangsu Jiapeng Hydraulic Technology Co ltd
Current assignee: Jiangsu Jiapeng Hydraulic Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-06-07
Anticipated expiration: 2031-12-22

Abstract

The utility model belongs to the technical field of hydraulic valves, and particularly relates to a novel pneumatic control hydraulic valve which comprises an upper cover and a valve body, wherein the upper cover and the valve body are fixed through bolts; the pneumatic control adjusting device comprises a plugging disc, the top end of the plugging disc is fixedly connected with a first vertical rod, the top end of the first vertical rod is fixedly connected with a first piston, and the pneumatic control adjusting device has the beneficial effects that: through gas accuse adjusting device, but the rotatable driving-disc or adjust atmospheric pressure through the air quantity of adjusting in the injection cylinder to can conveniently adjust the compact degree of shutoff dish shutoff runner, can avoid the liquid backward flow effectively, upper cover and valve body pass through the bolt fastening and form the hydrovalve, easy dismounting is convenient for carry out the dismouting to the anti-return subassembly in the valve body.

Description

Novel pneumatic control hydraulic valve

Technical Field

The utility model relates to the technical field of hydraulic valves, in particular to a novel pneumatic control hydraulic valve.

Background

The hydraulic valve is an automatic element operated by pressure oil, is controlled by the pressure oil of a pressure distribution valve, is usually combined with an electromagnetic pressure distribution valve for use, and can be used for remotely controlling the connection and disconnection of oil, gas and water pipeline systems of hydropower stations. It is commonly used for clamping, controlling, lubricating and other oil passages, and is divided into direct-acting type and pilot type, and is of multi-purpose pilot type.

The size of a flow channel of the conventional hydraulic valve is inconvenient to adjust, and the conventional hydraulic valve does not have a backflow prevention function, so that liquid cannot be prevented from flowing backwards in the hydraulic valve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel pneumatic control hydraulic valve, which aims to solve the problems in the prior pneumatic control hydraulic valve.

Therefore, the utility model aims to provide a novel pneumatic control hydraulic valve, the size of a flow channel is convenient to adjust and backflow can be effectively prevented by arranging an anti-backflow component and a pneumatic control adjusting device, and the problems that the size of the flow channel is inconvenient to adjust, the flow channel does not have an anti-backflow function and liquid cannot be prevented from flowing back when flowing in the hydraulic valve in the prior art are solved.

To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions: a novel pneumatic control hydraulic valve comprises an upper cover and a valve body, wherein the upper cover and the valve body are fixed through bolts, a pneumatic control adjusting device is installed on the upper cover, a first flow passage, a second flow passage and a third flow passage are arranged in the valve body, an accommodating cavity is formed in the upper cover, and an anti-backflow assembly is installed in an inner cavity of the valve body;

the pneumatic control adjusting device comprises a plugging disc, a first vertical rod is fixedly connected to the top end of the plugging disc, a first piston is fixedly connected to the top end of the first vertical rod, a second piston is arranged above the first piston, a second vertical rod is fixedly connected to the top end of the second piston, a third piston is fixedly connected to the top end of the second vertical rod, a fourth piston is arranged above the third piston, a threaded rod is fixedly connected to the top end of the fourth piston, a driving disc is fixedly connected to the top end of the threaded rod, the third piston and the fourth piston are both located in the inflator, the second piston and the first piston are both located in an accommodating chamber, an oil filling opening is formed in one side of the accommodating chamber, an air inlet is formed in the right end of the inflator, a valve is installed on the air inlet, and hydraulic oil is arranged between the second piston and the first piston.

As a preferred scheme of the novel pneumatic control hydraulic valve, the pneumatic control hydraulic valve comprises the following steps: the upper cover is provided with a first internal thread hole and a second internal thread hole, and the top end of the valve body is provided with a third internal thread hole and a fourth internal thread hole.

As a preferred scheme of the novel pneumatic control hydraulic valve, the pneumatic control hydraulic valve comprises the following steps: and the valve body is provided with a first lightening hole and a second lightening hole so as to reduce the weight of the valve body.

As a preferred scheme of the novel pneumatic control hydraulic valve, the pneumatic control hydraulic valve comprises the following steps: the backflow prevention assembly comprises a sealing cover, one end of the sealing cover is fixedly connected with a driving arm, one end, far away from the sealing cover, of the driving arm is rotatably connected with a supporting arm through a hinge shaft, and the supporting arm is installed in an inner cavity of the valve body through a bolt.

As a preferred scheme of the novel pneumatic control hydraulic valve, the pneumatic control hydraulic valve comprises the following steps: and a fifth internal thread hole is formed in the top end of the inflator, and a threaded rod is in threaded connection with the inner wall of the fifth internal thread hole.

As a preferred scheme of the novel pneumatic control hydraulic valve, the pneumatic control hydraulic valve comprises the following steps: the upper cover is provided with a guide hole, a guide sleeve is arranged in the guide hole, and the inner wall of the guide sleeve is connected with the second vertical rod in a sliding mode.

As a preferred scheme of the novel pneumatic control hydraulic valve, the pneumatic control hydraulic valve comprises the following steps: the plugging disc is arranged at the intersection of the first flow passage and the second flow passage, and the sealing cover is arranged at the intersection of the second flow passage and the third flow passage.

As a preferred scheme of the novel pneumatic control hydraulic valve, the pneumatic control hydraulic valve comprises the following steps: the right end of the valve body is provided with a sixth internal thread hole, and the left end of the valve body is provided with a seventh internal thread hole.

As a preferred scheme of the novel pneumatic control hydraulic valve, the pneumatic control hydraulic valve comprises the following steps: and a passage is arranged on the valve body and is communicated with the third flow passage.

As a preferred scheme of the novel pneumatic control hydraulic valve, the pneumatic control hydraulic valve comprises the following steps: the bottom end of the upper cover is sleeved with a first sealing ring and a second sealing ring, and the first sealing ring and the second sealing ring are made of silicon rubber.

Compared with the prior art:

1. the air pressure can be adjusted by rotating the driving disc or adjusting the air quantity injected into the air cylinder through the air control adjusting device, so that the compaction degree of the blocking flow channel blocked by the blocking disc can be conveniently adjusted;

2. by arranging the backflow prevention assembly, liquid backflow can be effectively avoided;

3. the upper cover and the valve body are fixed through the bolts to form the hydraulic valve, so that the assembly and disassembly are convenient, and the assembly and disassembly for preventing backflow in the valve body are convenient.

Drawings

FIG. 1 is a schematic structural view provided by the present invention;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is a schematic external view of FIG. 1 according to the present invention;

fig. 4 is a schematic view of fig. 1 in use according to the present invention.

In the figure: the pneumatic control valve comprises an upper cover 1, a first internal threaded hole 11, a second internal threaded hole 14, a containing chamber 15, a guide hole 16, a guide sleeve 161, a valve body 2, a first flow passage 21, a second flow passage 22, a third flow passage 23, a channel 24, a third internal threaded hole 25, a sixth internal threaded hole 26, a second lightening hole 27, a first sealing ring 3, a second sealing ring 4, a backflow prevention assembly 5, a driving arm 51, a sealing cover 52, a hinge shaft 53, a supporting arm 54, a pneumatic control adjusting device 6, a sealing disc 60, an air cylinder 61, an air inlet 611, a valve 6111, a fifth internal threaded hole 612, a threaded rod 62, a driving disc 621, a third piston 63, a fourth piston 64, a second vertical rod 65, a second piston 66, a first piston 67 and a first vertical rod 68.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The utility model provides a novel pneumatic control hydraulic valve, please refer to fig. 1-4, which comprises an upper cover 1 and a valve body 2, wherein the upper cover 1 is provided with a first internal thread hole 11 and a second internal thread hole 14, the top end of the valve body 2 is provided with a third internal thread hole 25 and a fourth internal thread hole, the valve body 2 is provided with a first lightening hole and a second lightening hole 27 to reduce the weight of the valve body 2, the upper cover 1 and the valve body 2 are fixed through bolts, the upper cover 1 is provided with a pneumatic control adjusting device 6, the valve body 2 is internally provided with a first flow passage 21, a second flow passage 22 and a third flow passage 23, the upper cover 1 is provided with a containing chamber 15, an anti-backflow component 5 is arranged in an inner cavity of the valve body 2, the upper cover 1 is provided with a guide hole 16, the guide sleeve 161 is arranged in the guide hole 16, the inner wall of the guide sleeve 161 is connected with a second vertical rod 65 in a sliding manner, a plugging disc 60 is arranged at the intersection of the first flow passage 21 and the second flow passage 22, a sealing cover 52 is arranged at the intersection of the second flow passage 22 and the third flow passage 23, a sixth internal thread hole 26 is formed in the right end of the valve body 2, a seventh internal thread hole is formed in the left end of the valve body 2, a channel 24 is formed in the valve body 2, the channel 24 is communicated with a third flow passage 23, a first sealing ring 3 and a second sealing ring 4 are sleeved at the bottom end of the upper cover 1, the first sealing ring 3 and the second sealing ring 4 are used for sealing between the upper cover 1 and the valve body 2, and the first sealing ring 3 and the second sealing ring 4 are made of silicon rubber materials;

the pneumatic control adjusting device 6 comprises a blocking disc 60, the blocking disc 60 is used for blocking the junction of the first flow passage 21 and the second flow passage 22, the top end of the blocking disc 60 is fixedly connected with a first vertical rod 68, the top end of the first vertical rod 68 is fixedly connected with a first piston 67, a second piston 66 is arranged above the first piston 67, the top end of the second piston 66 is fixedly connected with a second vertical rod 65, the top end of the second vertical rod 65 is fixedly connected with a third piston 63, a fourth piston 64 is arranged above the third piston 63, the top end of the fourth piston 64 is fixedly connected with a threaded rod 62, the threaded rod 62 is used for driving the fourth piston 64 to lift, the top end of the threaded rod 62 is fixedly connected with a driving disc 621, the third piston 63 and the fourth piston 64 are both positioned in an air cylinder 61, the second piston 66 and the first piston 67 are both positioned in the accommodating chamber 15, one side of the accommodating chamber 15 is provided with an oil injection port, hydraulic oil can be injected into the accommodating chamber 15, an air inlet 611 is formed in the right end of the air cylinder 61, a valve 6111 is mounted on the air inlet 611, hydraulic oil is arranged between the second piston 66 and the first piston 67, a fifth internal threaded hole 612 is formed in the top end of the air cylinder 61, and a threaded rod 62 is in threaded connection with the inner wall of the fifth internal threaded hole 612.

The backflow prevention assembly 5 comprises a sealing cover 52, the sealing cover 52 is used for sealing the junction of the second flow passage 22 and the third flow passage 23, one end of the sealing cover 52 is fixedly connected with a driving arm 51, one end, far away from the sealing cover 52, of the driving arm 51 is rotatably connected with a supporting arm 54 through a hinge shaft 53, and the supporting arm 54 is installed in the inner cavity of the valve body 2 through a bolt.

When the valve is used specifically, the right end of the valve body 2 is connected with a liquid inlet pipe, liquid firstly enters the first flow passage 21, air is injected into the air cylinder 61 through the air inlet 611, the third piston 63 is extruded through air pressure, so that the second piston 66 is extruded, the second piston 66 is extruded through hydraulic oil to the first piston 67, the first piston 67 extrudes the plugging disc 60 through the first vertical rod 68, the force for plugging the flow passage of the plugging disc 60 can be controlled by controlling the air pressure (the air pressure can be controlled through the air amount injected into the air cylinder 61), and the fourth piston 64 can be driven to lift by rotating the driving disc 621 to adjust the air pressure; when liquid needs to pass through, the air pressure is adjusted, the blocking disc 60 is jacked up by the liquid, the liquid enters the second flow passage 22, the sealing cover 52 is jacked open and enters the third flow passage 23, and when the hydraulic pressure in the third flow passage 23 is larger than that in the second flow passage 22, the sealing cover 52 is closed, so that the liquid is effectively prevented from flowing back.

While the utility model has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the disclosed embodiments of the utility model may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a novel gas accuse hydrovalve, includes upper cover (1) and valve body (2), its characterized in that: the upper cover (1) and the valve body (2) are fixed through bolts, a pneumatic control adjusting device (6) is installed on the upper cover (1), a first flow passage (21), a second flow passage (22) and a third flow passage (23) are arranged in the valve body (2), an accommodating cavity (15) is formed in the upper cover (1), and an anti-backflow assembly (5) is installed in an inner cavity of the valve body (2); the pneumatic control adjusting device (6) comprises a blocking disc (60), a first vertical rod (68) is fixedly connected to the top end of the blocking disc (60), a first piston (67) is fixedly connected to the top end of the first vertical rod (68), a second piston (66) is arranged above the first piston (67), a second vertical rod (65) is fixedly connected to the top end of the second piston (66), a third piston (63) is fixedly connected to the top end of the second vertical rod (65), a fourth piston (64) is arranged above the third piston (63), a threaded rod (62) is fixedly connected to the top end of the fourth piston (64), a driving disc (621) is fixedly connected to the top end of the threaded rod (62), the third piston (63) and the fourth piston (64) are both located in an air cylinder (61), the second piston (66) and the first piston (67) are both located in an accommodating chamber (15), and an oil filling opening is arranged on one side of the accommodating chamber (15), an air inlet (611) is formed in the right end of the air cylinder (61), a valve (6111) is mounted on the air inlet (611), and hydraulic oil is arranged between the second piston (66) and the first piston (67).

2. The novel pneumatic control hydraulic valve according to claim 1, wherein the upper cover (1) is provided with a first internal threaded hole (11) and a second internal threaded hole (14), and the top end of the valve body (2) is provided with a third internal threaded hole (25) and a fourth internal threaded hole.

3. A novel pneumatic control hydraulic valve according to claim 1, characterized in that the valve body (2) is provided with a first lightening hole and a second lightening hole (27) to reduce the weight of the valve body (2).

4. The novel pneumatic control hydraulic valve is characterized in that the backflow prevention assembly (5) comprises a sealing cover (52), one end of the sealing cover (52) is fixedly connected with a driving arm (51), one end, far away from the sealing cover (52), of the driving arm (51) is rotatably connected with a supporting arm (54) through a hinge shaft (53), and the supporting arm (54) is installed in an inner cavity of the valve body (2) through a bolt.

5. The novel pneumatic control hydraulic valve as claimed in claim 1, wherein a fifth internal threaded hole (612) is formed in the top end of the air cylinder (61), and a threaded rod (62) is in threaded connection with the inner wall of the fifth internal threaded hole (612).

6. The novel pneumatic control hydraulic valve according to claim 1, wherein a guide hole (16) is formed in the upper cover (1), a guide sleeve (161) is arranged in the guide hole (16), and the inner wall of the guide sleeve (161) is connected with a second vertical rod (65) in a sliding manner.

7. A novel pneumatic control hydraulic valve as claimed in claim 4, characterized in that the blocking disc (60) is arranged at the intersection of the first flow passage (21) and the second flow passage (22), and the cover (52) is arranged at the intersection of the second flow passage (22) and the third flow passage (23).

8. The novel pneumatic control hydraulic valve according to claim 1, wherein a sixth internal threaded hole (26) is formed in the right end of the valve body (2), and a seventh internal threaded hole is formed in the left end of the valve body (2).

9. The novel pneumatic control hydraulic valve according to claim 1, wherein a channel (24) is arranged on the valve body (2), and the channel (24) is communicated with the third flow passage (23).

10. The novel pneumatic control hydraulic valve according to claim 1, wherein a first sealing ring (3) and a second sealing ring (4) are sleeved at the bottom end of the upper cover (1), and the first sealing ring (3) and the second sealing ring (4) are made of silicon rubber.