CN218993050U

CN218993050U - Oil circuit system

Info

Publication number: CN218993050U
Application number: CN202123238139.4U
Authority: CN
Inventors: 陈阿扣; 王衡; 沈志远
Original assignee: Taizhou Fatbit Lubricant Filling Equipment Co ltd
Current assignee: Taizhou Fatbit Lubricant Filling Equipment Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2023-05-09
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses an oil circuit system, comprising: the pneumatic pump comprises a first air inlet part, a first oil inlet part and a first oil outlet part, wherein the first air inlet part is communicated with the air supply part, the first oil inlet part is communicated with the oil supply part, the first oil outlet part is communicated with the oil gun through an oil way, an oil valve is arranged on the oil way, an air valve is arranged between the first air inlet part and the air supply part, the air valve and the oil valve can be in drive control connection or disconnection with each other through a plurality of miniature electromagnetic valves, the rated working voltage of the miniature electromagnetic valves is less than 10V, and the rated working current is less than 600mA. The oil circuit system can control the opening and closing of an oil circuit through an oil valve on the oil circuit, or control the starting and stopping of a pneumatic pump through an air valve between a first air inlet part and an air supply part so as to control whether the first oil outlet part discharges oil or not, and the oil valve and the air valve are matched and controlled to be opened or closed through a plurality of low-power driving parts.

Description

Oil circuit system

Technical Field

The utility model relates to the technical field of oil ways, in particular to an oil way system.

Background

Lubricating oils are liquid or semisolid lubricants used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and workpieces, and mainly play roles in lubrication, cooling, rust prevention, cleaning, sealing, buffering and the like. Lubricating oil is typically added to a machine by an oil filler when it is added to the machine. In the prior art, the locking device is arranged on the oil gun to control the opening and closing of the oil gun, so that the output of lubricating oil can be controlled.

Disclosure of Invention

The object of the present utility model is to provide an oil circuit system solving one or more of the above-mentioned prior art problems.

An oil passage system according to the present utility model includes: the pneumatic pump comprises a first air inlet part, a first oil inlet part and a first oil outlet part, wherein the first air inlet part is communicated with the air supply part, the first oil inlet part is communicated with the oil supply part, the first oil outlet part is communicated with the oil gun through an oil way, an oil valve is arranged on the oil way, the oil valve can be in drive control communication or disconnection with the oil way through a plurality of miniature electromagnetic valves, the rated operating voltage of the miniature electromagnetic valves is less than 10V, and the rated operating current is less than 600mA.

In some embodiments, the oil valve includes:

the second oil inlet part is communicated with the first oil outlet part;

the second oil outlet part is communicated with the oil gun;

the oil valve body comprises an oil valve core which is communicated with or disconnected from an oil path;

the double-acting cylinder comprises a first piston and a first piston rod, the interior of the double-acting cylinder is divided into a rod cavity and a rodless cavity by the first piston, the rodless cavity is arranged above the rod cavity, the rod cavity is communicated with a first air pipe, the rodless cavity is communicated with a second air pipe, and the first piston rod is connected with an oil valve core;

a first air valve body including a first air flow path connecting the air supply portion and the first air pipe, a second air flow path connecting the atmosphere and the second air pipe, a third air flow path connecting the atmosphere and the first air pipe, and a fourth air flow path connecting the air supply portion and the second air pipe, the first air valve body being provided with a first air valve spool selectively communicating the first air flow path, the second air flow path, the third air flow path, or the fourth air flow path, when the first air flow path and the second air flow path are communicated, the oil path being in a communication state, and when the third air flow path and the fourth air flow path are communicated, the oil path being in an off state;

the first cylinder comprises a first cylinder body, a first cavity, a second piston, a first air passage and a second air passage, wherein the first cavity is arranged in the first cylinder body, the second piston is arranged in the first cavity, the first air passage and the second air passage are arranged on the side wall of the first cylinder body, the first cylinder body is arranged on one side of a valve body of the first air valve, and the second piston is in butt joint with one end of a valve core of the first air valve;

the second cylinder comprises a second cylinder body, a second cavity, a third piston, a third air passage and a fourth air passage, wherein the second cavity is arranged in the second cylinder body, the third piston is arranged in the second cavity, the third air passage and the fourth air passage are arranged on the side wall of the second cylinder body, the second cylinder body is arranged on the other side of the first air valve body, and the third piston is in butt joint with the other end of the first air valve core;

the first miniature electromagnetic valve comprises a first air inlet and a first air outlet, the first air inlet is communicated with the air supply part, and the first air outlet is communicated with the first chamber;

the second miniature electromagnetic valve comprises a second air inlet and a second air outlet, the second air inlet is communicated with the first cavity, and the second air outlet is communicated with the atmosphere;

the third miniature electromagnetic valve comprises a third air inlet and a third air outlet, the third air inlet is communicated with the second cavity, and the third air outlet is communicated with the atmosphere;

and the fourth miniature electromagnetic valve comprises a fourth air inlet and a fourth air outlet, the fourth air inlet is communicated with the air supply part, and the fourth air outlet is communicated with the second chamber.

In some embodiments, the first air valve body is provided with a second through hole communicating with the air supply portion, a first through hole and a third through hole communicating with the atmosphere, a fourth through hole communicating with the first air pipe, and a fifth through hole communicating with the second air pipe;

when the first valve core is arranged at the second position, the first through hole is communicated with the fourth through hole, and the second through hole is communicated with the fifth through hole.

In some embodiments, the first piston rod is connected to the oil valve spool by a coupling.

In some embodiments, the oil valve spool includes a sixth through hole in communication with the second oil inlet portion, a seventh through hole in communication with the second oil outlet portion;

when the first air flow path is communicated and the second air flow path is communicated, the sixth through hole and the seventh through hole are in a communicated state, and when the third air flow path is communicated and the fourth air flow path is communicated, the sixth through hole and the seventh through hole are in a disconnected state.

In some embodiments, a gas valve is arranged between the first gas inlet part and the air supply part, the gas valve can be driven and controlled by a plurality of micro electromagnetic valves, the rated operating voltage of the micro electromagnetic valves is less than 10V, and the rated operating current is less than 600mA.

In some embodiments, the gas valve comprises:

an air output part which is communicated with the first air inlet part;

the second air valve body comprises a fifth air flow path which is connected with the air supply part and the air output part, and a second air valve core which is communicated with or disconnected from the fifth air flow path is arranged on the fifth air flow path;

the third cylinder comprises a third cylinder body, a third chamber arranged in the third cylinder body, a fourth piston arranged in the third chamber, and a fifth air passage and a sixth air passage arranged on the side wall of the third cylinder body, the third cylinder body is arranged on one side of the second air valve body, and the fourth piston is in butt joint with one end of the second air valve core;

the fourth cylinder comprises a fourth cylinder body, a fourth chamber arranged in the fourth cylinder body, a fifth piston arranged in the fourth chamber, a seventh air passage and an eighth air passage arranged on the side wall of the fourth cylinder body, the fourth cylinder body is arranged on the other side of the second air valve body, and the fifth piston is in butt joint with the other end of the second air valve core;

the fifth miniature electromagnetic valve comprises a fifth air inlet and a fifth air outlet, the fifth air inlet is communicated with the air supply part, and the fifth air outlet is communicated with the third chamber;

the sixth miniature electromagnetic valve comprises a sixth air inlet and a sixth air outlet, the sixth air inlet is communicated with the third chamber, and the sixth air outlet is communicated with the atmosphere;

a seventh micro electromagnetic valve, the seventh micro electromagnetic valve comprises a seventh air inlet and a seventh air outlet, the seventh air inlet is communicated with the fourth chamber, and the seventh air outlet is communicated with the atmosphere;

and the eighth miniature electromagnetic valve comprises an eighth air inlet and an eighth air outlet, the eighth air inlet is communicated with the air supply part, and the eighth air outlet is communicated with the fourth chamber.

In some embodiments, the second air valve body is provided with an eighth through hole communicating with the air supply portion, a ninth through hole communicating with the atmosphere, and a tenth through hole communicating with the air output portion;

wherein the eighth through hole communicates with the tenth through hole when the second valve spool is disposed in the third position, and the ninth through hole communicates with the tenth through hole when the second valve spool is disposed in the fourth position.

In some embodiments, a first pressure reducing valve is provided between the first air inlet and the air supply, a first pressure reducing valve is provided between the fourth air inlet and the air supply, a second pressure reducing valve is provided between the fifth air inlet and the air supply, and a second pressure reducing valve is provided between the eighth air inlet and the air supply.

In some embodiments, a first piston ring is disposed between the second piston and the first cylinder inner wall, a second piston ring is disposed between the third piston and the second cylinder inner wall, a third piston ring is disposed between the fourth piston and the third cylinder inner wall, and a fourth piston ring is disposed between the fifth piston and the fourth cylinder inner wall.

The beneficial effects are that:

the oil circuit system can control the opening and closing of an oil circuit through an oil valve on the oil circuit, or control the starting and stopping of a pneumatic pump through an air valve between a first air inlet part and an air supply part so as to control whether the first oil outlet part discharges oil, the oil valve and the air valve are matched and controlled to be opened or closed through a plurality of low-power driving parts, and the driving voltage of the low-power driving parts can be provided through a dry battery or a button battery.

The oil valve with the low-power driving control is an indispensable hardware component for intelligent control of an oil circuit system, in particular to intelligent control of mobile oil filling equipment.

The air valve controlled by the low-power drive is an indispensable hardware component for intelligent control of an air circuit system, in particular for intelligent control of mobile pneumatic equipment.

Drawings

FIG. 1 is a schematic diagram of an oil circuit system according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an oil valve of an oil circuit system according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram showing a partial structure of an oil valve of an oil circuit system according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating a gas valve of an oil circuit system according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a partial structure of an oil system according to an embodiment of the present utility model;

fig. 6 is a schematic diagram illustrating an oil circuit control according to an embodiment of the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1:

an oil circuit system, comprising: the pneumatic pump 10 comprises a first air inlet part 11, a first oil inlet part 12 and a first oil outlet part 13, wherein the first air inlet part 11 is communicated with the air supply part, the first oil inlet part 12 is communicated with the oil supply part 30, the first oil outlet part 13 is communicated with the oil gun 20 through an oil way 40, an oil valve 50 is arranged on the oil way 40, the oil valve 50 can be driven and controlled to be communicated with or disconnected from the oil way 40 through a plurality of miniature electromagnetic valves, the rated operating voltage of the miniature electromagnetic valves is smaller than 10V, and the rated operating current is smaller than 600mA.

It should be noted that: an air compressor may be used for the air supply with the pressure source.

The oil gun can be controlled to be opened or closed through the cooperation of a plurality of miniature electromagnetic valves, and the working voltage of the miniature electromagnetic valves can be provided through a dry battery or a button battery.

As shown in fig. 2 and 3:

in various embodiments of the oil circuit system provided by the present utility model, the oil valve 50 includes:

a second oil inlet portion 411, the second oil inlet portion 411 communicating with the first oil outlet portion 13;

a second oil outlet 412, the second oil outlet 412 being in communication with the oil gun 20;

an oil valve body 421, the oil valve body 421 including an oil valve spool 422 that communicates with or disconnects the oil passage 40;

the double-acting cylinder 430, the double-acting cylinder 430 includes a first piston 431 and a first piston rod 432, the inside of the double-acting cylinder 430 is divided into a rod cavity and a rodless cavity by the first piston 431, the rodless cavity is arranged above the rod cavity, the rod cavity is communicated with a first air pipe 433, the rodless cavity is communicated with a second air pipe 434, and the first piston rod 432 is connected with the oil valve core 422;

a first air valve body 441 including a first air flow path connecting the air supply portion and the first air tube 433, a second air flow path connecting the atmosphere and the second air tube 434, a third air flow path connecting the atmosphere and the first air tube 433, and a fourth air flow path connecting the air supply portion and the second air tube 434, the first air valve body 441 being provided with a first air valve spool 442 selectively communicating the first air flow path, the second air flow path, the third air flow path, or the fourth air flow path, the oil passage 40 being in a communication state when the first air flow path and the second air flow path are in communication, and the oil passage 40 being in an off state when the third air flow path and the fourth air flow path are in communication;

the first cylinder 461, the first cylinder 461 includes a first cylinder 4611, a first chamber 4612 disposed in the first cylinder 4611, a second piston 4613 disposed in the first chamber 4612, and a first air passage 4616 and a second air passage 4617 disposed on a side wall of the first cylinder 4611, the first cylinder 4611 is mounted on one side of the first valve body 441, and the second piston 4613 abuts against one end of the first valve core 442;

the second cylinder 462, the second cylinder 462 includes a second cylinder body, a second chamber disposed in the second cylinder body, a third piston disposed in the second chamber, and a third air passage and a fourth air passage disposed on a sidewall of the second cylinder body, the second cylinder body is mounted on the other side of the first air valve body 441, and the third piston is abutted to the other end of the first air valve core 442;

a first micro solenoid valve 471, the first micro solenoid valve 471 including a first air inlet and a first air outlet, the first air inlet being in communication with the air supply, the first air outlet being in communication with the first chamber 4612;

a second micro solenoid valve 472, the second micro solenoid valve 472 comprising a second air inlet and a second air outlet, the second air inlet being in communication with the first chamber 4612, the second air outlet being in communication with the atmosphere;

a third micro solenoid valve 473, the third micro solenoid valve 473 comprising a third air inlet and a third air outlet, the third air inlet being in communication with the second chamber and the third air outlet being in communication with the atmosphere;

the fourth micro solenoid valve 474, the fourth micro solenoid valve 474 including a fourth air inlet port and a fourth air outlet port, the fourth air inlet port communicating with the air supply and the fourth air outlet port communicating with the second chamber.

It should be noted that: the first micro solenoid valve 471, the second micro solenoid valve 472, the third micro solenoid valve 473 and the fourth micro solenoid valve 474 have rated operating voltages of less than 10V, rated operating currents of less than 600mA, and preferably rated operating voltages of 6V, which can be provided by a dry battery or a button battery.

In various embodiments of the oil passage system provided by the present utility model, the first air valve body 441 is provided with a second through hole 452 communicating with the air supply portion, first through hole 451 and third through hole 453 communicating with the atmosphere, a fourth through hole 454 communicating with the first air tube 433, and a fifth through hole 455 communicating with the second air tube 434;

wherein the second through-hole 452 communicates with the fourth through-hole 454 and the third through-hole 453 communicates with the fifth through-hole 455 when the first valve spool 442 is disposed in the first position, and the first through-hole 451 communicates with the fourth through-hole 454 and the second through-hole 452 communicates with the fifth through-hole 455 when the first valve spool 442 is disposed in the second position.

It should be noted that:

the first air valve body 441 has a first through hole 451, a second through hole 452, and a third through hole 453 formed in an upper side thereof, and a fourth through hole 454 and a fifth through hole 455 formed in a lower side thereof, the first through hole 451, the second through hole 452, and the third through hole 453 are disposed alternately with the fourth through hole 454 and the fifth through hole 455, and when the second through hole 452 is communicated with the fourth through hole 454 and the third through hole 453 is communicated with the fifth through hole 455, the first air flow path is communicated with the second air flow path, and when the first through hole 451 is communicated with the fourth through hole 454 and the second through hole 452 is communicated with the fifth through hole 455, the third air flow path is communicated with the fourth air flow path.

In various embodiments of the oil circuit system provided by the present utility model, first piston rod 432 is connected to oil valve spool 422 by coupling 490.

It should be noted that: the coupling 490 penetrates the oil valve body 421 to be fixedly connected with the oil valve core 422 and is detachably connected with the first piston rod 432 by a nut.

In various embodiments of the oil path system provided by the present utility model, the oil valve core 422 includes a sixth through hole communicating with the second oil inlet portion 411, a seventh through hole communicating with the second oil outlet portion 412;

It should be noted that:

the left side of the oil valve body 421 is provided with a sixth through hole, the right side is provided with a seventh through hole, the sixth through hole and the seventh through hole are arranged in a staggered manner, when the sixth through hole is communicated with the seventh through hole, the oil way is communicated, and when the sixth through hole is not communicated with the seventh through hole, the oil way is disconnected.

In various embodiments of the oil path system provided by the utility model, an air valve 60 is arranged between the first air inlet part 11 and the air supply part, the air valve 60 can be driven and controlled by a plurality of micro electromagnetic valves, the rated operating voltage of the micro electromagnetic valves is less than 10V, and the rated operating current is less than 600mA.

As shown in fig. 4 and 5:

in various embodiments of the oil circuit system provided by the present utility model, the gas valve includes:

an air output part 620, the air output part 620 communicating with the first air intake part 11;

the second air valve body 631, the second air valve body 631 includes a fifth air flow path 630 connecting the air supply unit and the air output unit 620, and a second air valve element 632 for connecting or disconnecting the fifth air flow path 630 is provided in the fifth air flow path 630;

the third cylinder 651, the third cylinder 651 includes a third cylinder 6511, a third chamber 6512 provided in the third cylinder 6511, a fourth piston 6513 provided in the third chamber 6512, and a fifth air passage 6516 and a sixth air passage 6517 provided in a side wall of the third cylinder 6511, the third cylinder 6511 is mounted on one side of the second valve body 631, and the fourth piston 6513 abuts against one end of the second valve spool 632;

the fourth cylinder 652, the fourth cylinder 652 includes a fourth cylinder body, a fourth chamber disposed in the fourth cylinder body, a fifth piston disposed in the fourth chamber, and a seventh air passage and an eighth air passage disposed on a side wall of the fourth cylinder body, the fourth cylinder body is mounted on the other side of the second air valve body 631, and the fifth piston is in contact with the other end of the second air valve core 632;

a fifth micro solenoid valve 661, the fifth micro solenoid valve 661 including a fifth air inlet and a fifth air outlet, the fifth air inlet being in communication with the air supply portion, the fifth air outlet being in communication with the third chamber 6512;

a sixth micro solenoid valve 662, the sixth micro solenoid valve 662 including a sixth air inlet port and a sixth air outlet port, the sixth air inlet port being in communication with the third chamber 6512, the sixth air outlet port being in communication with the atmosphere;

a seventh micro electromagnetic valve 663, the seventh micro electromagnetic valve 663 comprising a seventh air inlet and a seventh air outlet, the seventh air inlet being in communication with the fourth chamber, the seventh air outlet being in communication with the atmosphere;

the eighth micro electromagnetic valve 664, the eighth micro electromagnetic valve 664 includes an eighth air inlet and an eighth air outlet, the eighth air inlet communicates with the air supply portion, and the eighth air outlet communicates with the fourth chamber.

It should be noted that: the fifth micro solenoid valve 661, the sixth micro solenoid valve 662, the seventh micro solenoid valve 663 and the eighth micro solenoid valve 664 have rated operating voltages of less than 10V, rated operating currents of less than 600mA, and preferably rated operating voltages of 6V, and can be provided by a dry battery or a button battery.

In various embodiments of the oil passage system provided by the present utility model, the second air valve body 631 is provided with an eighth through hole 641 communicating with the air supply portion, a ninth through hole 642 communicating with the atmosphere, and a tenth through hole 643 communicating with the air output portion 620;

wherein the eighth through hole 641 and the tenth through hole 643 communicate when the second valve spool 632 is disposed in the third position, and the ninth through hole 642 and the tenth through hole 643 communicate when the second valve spool 632 is disposed in the fourth position.

It should be noted that:

the valve body 631 has an eighth through hole 641 and a ninth through hole 642 formed at an upper side thereof and a tenth through hole 643 formed at a lower side thereof, the tenth through hole 643 being disposed alternately with the eighth through hole 641 and the ninth through hole 642, and when the eighth through hole 641 and the tenth through hole 643 are communicated, the fifth air flow path 630 is communicated, and when the ninth through hole 642 and the tenth through hole 643 are communicated, the fifth air flow path 630 is disconnected.

In various embodiments of the oil passage system provided by the present utility model, a first pressure reducing valve 480 is provided between the first air inlet and the air supply portion, a first pressure reducing valve 480 is provided between the fourth air inlet and the air supply portion, a second pressure reducing valve 670 is provided between the fifth air inlet and the air supply portion, and a second pressure reducing valve 670 is provided between the eighth air inlet and the air supply portion.

It should be noted that: when the air inlets of the first micro electromagnetic valve 461 and the fourth micro electromagnetic valve 464 are externally connected with the air compressor, a pressure reducing valve is required to be externally connected;

when the air inlets of the fifth micro solenoid valve 661 and the eighth micro solenoid valve 664 are externally connected with the air compressor, a pressure reducing valve is required to be externally connected.

In various embodiments of the oil circuit system provided by the utility model, a first piston ring 4615 is arranged between the second piston 4613 and the inner wall of the first cylinder 4611, a second piston ring is arranged between the third piston and the inner wall of the second cylinder, a third piston ring is arranged between the fourth piston 6513 and the inner wall of the third cylinder, and a fourth piston ring is arranged between the fifth piston and the inner wall of the fourth cylinder.

As shown in fig. 6:

an oil circuit system of the embodiment of the application:

the control valve 60 is driven by controlling a plurality of micro solenoid valves:

the fifth micro electromagnetic valve 661 and the seventh micro electromagnetic valve 663 are controlled to be electrified, the sixth micro electromagnetic valve 662 and the eighth micro electromagnetic valve 664 are powered off, the eighth through hole 641 is communicated with the tenth through hole 643, the fifth air flow path 630 is communicated, the pneumatic pump 10 is started, and the first oil outlet part 13 is used for discharging oil;

the sixth and eighth

micro solenoid valves

662, 664 are controlled to be energized, the fifth and seventh

micro solenoid valves

661, 663 are de-energized, and when the ninth through hole 642 and the tenth through hole 643 are communicated, the fifth air flow passage 630 is disconnected, the pneumatic pump 10 stops working, and the first oil outlet portion 13 does not outlet oil;

the oil valve 50 may be driven and controlled by controlling a plurality of micro solenoid valves;

when the first solenoid valve 471, the third solenoid valve 473 are controlled to be electrified, the second solenoid valve 472 and the fourth solenoid valve 474 are controlled to be powered off and the first air valve core 442 is pushed to the first position, the second through hole 452 and the fourth through hole 454 are communicated, the first air flow path is communicated, the third through hole 453 and the fifth through hole 455 are communicated, the second air flow path is communicated, the rod cavity of the double-acting air cylinder is filled with compressed air, the first piston rod moves upwards, the sixth through hole and the seventh through hole are communicated, and the oil path is communicated;

when the second electromagnetic valve 472, the fourth electromagnetic valve 474 are controlled to be electrified and the first electromagnetic valve 471 and the third electromagnetic valve 473 are controlled to be deenergized and the first air valve core 442 is pushed to the second position, the first through hole 451 and the fourth through hole 454 are communicated, the third air flow path is communicated, the second through hole 452 and the fifth through hole 455 are communicated, the fourth air flow path is communicated, the rodless cavity of the double-acting cylinder is filled with compressed air, the first piston rod moves downwards, the sixth through hole and the seventh through hole are not communicated, and an oil way is disconnected.

According to the oil circuit system, the oil circuit can be controlled to be opened or closed through the oil valve on the oil circuit, or the starting and stopping of the pneumatic pump can be controlled through the air valve between the first air inlet part and the air supply part, so that whether the first oil outlet part discharges oil or not can be controlled, the oil valve and the air valve are controlled to be opened or closed through the cooperation of the plurality of low-power driving parts, and the driving voltage of the low-power driving parts can be provided through a dry battery or a button battery.

The oil valve controlled by the low-power drive is an indispensable hardware component for intelligent control of an oil circuit system, in particular for intelligent control of mobile oil filling equipment.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that a person skilled in the art may make several similar variations and modifications without departing from the inventive concept, which should also be considered as being within the scope of the present utility model.

Claims

1. An oil circuit system, comprising: the pneumatic oil pump comprises a pneumatic pump (10), an oil gun (20), an oil supply part (30) and an air supply part with a pressure source, wherein the pneumatic pump (10) comprises a first air inlet part (11), a first oil inlet part (12) and a first oil outlet part (13), the first air inlet part (11) is communicated with the air supply part, the first oil inlet part (12) is communicated with the oil supply part (30), the first oil outlet part (13) is communicated with the oil gun (20) through an oil way (40), an oil valve (50) is arranged on the oil way (40), the oil valve (50) can be communicated or disconnected through driving control of a plurality of miniature electromagnetic valves, the rated operating voltage of the miniature electromagnetic valves is smaller than 10V, and the rated operating current is smaller than 600mA.

2. An oil circuit system according to claim 1, wherein the oil valve (50) comprises:

a second oil inlet portion (411), the second oil inlet portion (411) communicating with the first oil outlet portion (13);

a second oil outlet (412), the second oil outlet (412) being in communication with the oil gun (20);

an oil valve body (421), the oil valve body (421) including an oil valve spool (422) that connects or disconnects the oil passage (40);

the double-acting cylinder (430) comprises a first piston (431) and a first piston rod (432), the interior of the double-acting cylinder (430) is divided into a rod cavity and a rodless cavity by the first piston (431), the rodless cavity is arranged above the rod cavity, the rod cavity is communicated with a first air pipe (433), the rodless cavity is communicated with a second air pipe (434), and the first piston rod (432) is connected with the oil valve core (422);

a first air valve body (441), the first air valve body (441) including a first air flow path connecting the air supply portion and the first air pipe (433), a second air flow path connecting the atmosphere and the second air pipe (434), a third air flow path connecting the atmosphere and the first air pipe (433), and a fourth air flow path connecting the air supply portion and the second air pipe (434), the first air valve body (441) being provided with a first air valve spool (442) selectively communicating the first air flow path, the second air flow path, the third air flow path, or the fourth air flow path, when the first air flow path and the second air flow path are communicated, the oil passage (40) being in a communication state, when the third air flow path and the fourth air flow path are communicated, the oil passage (40) being in an off state;

a first cylinder (461), wherein the first cylinder (461) comprises a first cylinder body (4611), a first chamber (4612) arranged in the first cylinder body (4611), a second piston (4613) arranged in the first chamber (4612), and a first air passage (4616) and a second air passage (4617) arranged on the side wall of the first cylinder body (4611), the first cylinder body (4611) is mounted on one side of the first air valve body (441), and the second piston (4613) is abutted with one end of the first air valve core (442);

a second cylinder (462), wherein the second cylinder (462) comprises a second cylinder body, a second chamber arranged in the second cylinder body, a third piston arranged in the second chamber, and a third air passage and a fourth air passage arranged on the side wall of the second cylinder body, the second cylinder body is arranged on the other side of the first air valve body (441), and the third piston is abutted with the other end of the first air valve core (442);

a first micro solenoid valve (471), the first micro solenoid valve (471) comprising a first air inlet in communication with the air supply and a first air outlet in communication with the first chamber (4612);

a second micro solenoid valve (472), the second micro solenoid valve (472) comprising a second air inlet in communication with the first chamber (4612) and a second air outlet in communication with the atmosphere;

a third micro-solenoid valve (473), the third micro-solenoid valve (473) comprising a third air inlet in communication with the second chamber and a third air outlet in communication with the atmosphere;

and a fourth micro solenoid valve (474), the fourth micro solenoid valve (474) including a fourth air inlet and a fourth air outlet, the fourth air inlet being in communication with the air supply and the fourth air outlet being in communication with the second chamber.

3. An oil circuit system according to claim 2, wherein the first air valve body (441) is provided with a second through hole (452) communicating with the air supply, a first through hole (451) and a third through hole (453) communicating with the atmosphere, a fourth through hole (454) communicating with the first air pipe (433), and a fifth through hole (455) communicating with the second air pipe (434);

wherein when the first air valve spool (442) is arranged in a first position, the second through hole (452) communicates with the fourth through hole (454), the third through hole (453) communicates with the fifth through hole (455), and when the first air valve spool (442) is arranged in a second position, the first through hole (451) communicates with the fourth through hole (454), and the second through hole (452) communicates with the fifth through hole (455).

4. An oil circuit system according to claim 2, characterized in that the first piston rod (432) is connected to the oil valve core (422) by a coupling (490).

5. An oil passage system according to claim 2, characterized in that the oil valve spool (422) includes a sixth through hole communicating with the second oil inlet portion (411), a seventh through hole communicating with the second oil outlet portion (412);

the sixth through hole and the seventh through hole are in a communication state when the first air flow path is communicated and the second air flow path is communicated, and are in a disconnection state when the third air flow path is communicated and the fourth air flow path is communicated.

6. An oil circuit system according to claim 2, characterized in that a gas valve (60) is arranged between the first gas inlet part (11) and the air supply part, the gas valve (60) being driven and controlled by a plurality of micro solenoid valves, the rated operating voltage of the micro solenoid valves being less than 10V and the rated operating current being less than 600mA.

7. An oil circuit system according to claim 6, wherein the gas valve (60) comprises:

an air output portion (620), the air output portion (620) being in communication with the first air intake portion (11);

a second air valve body (631), wherein the second air valve body (631) comprises a fifth air flow path (630) connecting the air supply part and the air output part (620), and a second air valve core (632) for connecting or disconnecting the fifth air flow path (630) is arranged on the fifth air flow path (630);

a third cylinder (651), wherein the third cylinder (651) comprises a third cylinder body (6511), a third chamber (6512) arranged in the third cylinder body (6511), a fourth piston (6513) arranged in the third chamber (6512), and a fifth air passage (6516) and a sixth air passage (6517) arranged on the side wall of the third cylinder body (6511), the third cylinder body (6511) is mounted on one side of the second air valve body (631), and the fourth piston (6513) is in contact with one end of the second air valve core (632);

a fourth cylinder (652), wherein the fourth cylinder (652) comprises a fourth cylinder body, a fourth chamber arranged in the fourth cylinder body, a fifth piston arranged in the fourth chamber, and a seventh air passage and an eighth air passage arranged on the side wall of the fourth cylinder body, the fourth cylinder body is arranged on the other side of the second air valve body (631), and the fifth piston is abutted with the other end of the second air valve core (632);

a fifth micro solenoid valve (661), the fifth micro solenoid valve (661) comprising a fifth air inlet in communication with the air supply and a fifth air outlet in communication with the third chamber (6512);

a sixth miniature solenoid valve (662), the sixth miniature solenoid valve (662) including a sixth air inlet in communication with the third chamber (6512) and a sixth air outlet in communication with the atmosphere;

a seventh micro solenoid valve (663), the seventh micro solenoid valve (663) comprising a seventh air inlet and a seventh air outlet, the seventh air inlet being in communication with the fourth chamber, the seventh air outlet being in communication with the atmosphere;

an eighth micro solenoid valve (664), the eighth micro solenoid valve (664) including an eighth air inlet port and an eighth air outlet port, the eighth air inlet port being in communication with the air supply and the eighth air outlet port being in communication with the fourth chamber.

8. An oil passage system according to claim 7, characterized in that the second air valve body (631) is provided with an eighth through hole (641) communicating with the air supply portion, a ninth through hole (642) communicating with the atmosphere, and a tenth through hole (643) communicating with the air output portion (620);

wherein the eighth through hole (641) communicates with the tenth through hole (643) when the second valve spool (632) is disposed in the third position, and the ninth through hole (642) communicates with the tenth through hole (643) when the second valve spool (632) is disposed in the fourth position.

9. An oil circuit system according to claim 7, characterized in that a first pressure reducing valve (480) is arranged between the first air inlet and the air supply, a first pressure reducing valve (480) is arranged between the fourth air inlet and the air supply, a second pressure reducing valve (670) is arranged between the fifth air inlet and the air supply, and a second pressure reducing valve (670) is arranged between the eighth air inlet and the air supply.

10. An oil circuit system according to claim 7, characterized in that a first piston ring (4615) is arranged between the second piston (4613) and the inner wall of the first cylinder (4611), a second piston ring is arranged between the third piston and the inner wall of the second cylinder, a third piston ring is arranged between the fourth piston (6513) and the inner wall of the third cylinder, and a fourth piston ring is arranged between the fifth piston and the inner wall of the fourth cylinder.