CN114251320A

CN114251320A - Large-drift-diameter pipe barrel integrated reversing valve and control system thereof

Info

Publication number: CN114251320A
Application number: CN202011005420.0A
Authority: CN
Inventors: 郭晓春
Original assignee: Wuxi Hanwei Hydraulic Pneumatic Co ltd
Current assignee: Wuxi Hanwei Hydraulic Pneumatic Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2022-03-29

Abstract

A large-diameter pipe barrel integrated reversing valve comprises an upper valve body, a lower valve body and a valve core, wherein one end of the valve core close to the upper valve body is an upper control cavity, one end of the valve core close to the lower valve body is a lower control cavity, the upper valve body is sleeved at one end of the outer side of the valve core, the end part of the upper valve body is provided with an oil return port, the lower valve body is sleeved at the other end of the outer side of the valve core, the lower valve body is fixedly and hermetically connected with the upper valve body, the lower valve body is sequentially provided with an upper control port, a lower control port and an oil inlet along the direction far away from the oil return port, a first sealing structure is respectively arranged between the oil return port, the upper control port, the lower control port and the adjacent two ports of the oil inlet, a circular seam cavity is arranged between the inner wall of the lower valve body and the outer wall of the valve core, the upper control cavity can push the valve core to move downwards, the oil inlet is blocked by the lower control cavity, the lower control cavity pushes the valve core to move upwards, and the upper end of the valve core is blocked by the upper end of the valve core High sensitivity and safety.

Description

Large-drift-diameter pipe barrel integrated reversing valve and control system thereof

Technical Field

The invention relates to the technical field of reversing valves, in particular to an integrated reversing valve for a large-bore pipe barrel and a control system of the integrated reversing valve.

Background

The prior art pipeline integrated reversing valve is generally complex in structure and high in manufacturing cost, for example, a cartridge valve and a large-flow dynamic output control method for the cartridge valve with the patent number of 201810231193.X are complex in structure, limited in application field and poor in tail end limiting protection function, but the reversing valve with the simple structure is short in service life, low in working efficiency, low in sensitivity and small in flow, and cannot be flexibly installed and used.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a large-bore pipe barrel integrated reversing valve which has the advantages of simple structure, long service life, high working efficiency, high sensitivity, large flow and flexible installation and use, and an oil cylinder assembly with the large-bore pipe barrel integrated reversing valve.

The technical scheme adopted by the invention for solving the technical problems is as follows: a large-diameter pipe barrel integrated reversing valve comprises an upper valve body, a lower valve body and a valve core, wherein one end of the valve core close to the upper valve body is an upper control cavity, one end of the valve core close to the lower valve body is a lower control cavity, a cavity is formed in the valve core, an annular boss is arranged in the middle of the outer side of the valve core, the upper valve body is sleeved at one end of the outer side of the valve core, an oil return port is formed in the end portion of the upper valve body, the lower valve body is sleeved at the other end of the outer side of the valve core, the lower valve body is fixedly and hermetically connected with the upper valve body, an upper control port, a lower control port and an oil inlet are sequentially arranged on the lower valve body along the direction of the lower valve body far away from the oil return port, a first sealing structure is respectively arranged between the two adjacent ports of the oil return port, the two adjacent ports are separated by the first sealing structure, a circular seam cavity is formed between the inner wall of the lower valve body and the outer wall of the valve core, the circular boss divides the circular seam cavity into a first inner cavity close to the upper valve body and a second inner cavity far away from the upper valve body, the first inner cavity is communicated with the upper control port, the second inner cavity is communicated with the lower control port, the upper control cavity can be used for pushing the valve core to move downwards, the lower end of the valve core is used for plugging an oil inlet, the lower control cavity is used for pushing the valve core to move upwards, and the upper end of the valve core is used for plugging an oil return port.

Furthermore, a pipe barrel is sleeved outside the lower valve body and the upper valve body, an oil inlet channel, an upper control channel, a lower control channel and an oil return channel which sequentially correspond to the oil inlet, the upper control port, the lower control port and the oil return port are respectively arranged on the pipe barrel, second sealing structures are respectively arranged between the adjacent two of the oil inlet channel, the upper control channel, the lower control channel and the oil return channel, and the adjacent two channels are spaced through the second sealing structures.

Furthermore, a first one-way valve is arranged between the oil return port and the upper control port, a second one-way valve is arranged between the oil inlet and the lower control port, and the first one-way valve and the second one-way valve are both arranged in the lower valve body

Further, the lower valve body comprises a lower valve body and a middle valve body which are detachably connected with each other, the lower valve body is arranged at one end, away from the upper valve body, of the valve core, the oil inlet is formed in the lower valve body, and the middle valve body is arranged between the upper valve body and the lower valve body.

Further, the first lumen control area is equal to the second lumen control area.

Further, the first lumen control area is not equal to the second lumen control area.

A control system with a large-drift-diameter pipe barrel integrated reversing valve comprises the large-drift-diameter pipe barrel integrated reversing valve and a control module, wherein the control module can realize quick reversing control of an oil path through a differential principle.

Furthermore, the control module comprises a reversing valve, an opening a of the reversing valve is connected with an upper control opening of the large-drift-diameter pipe barrel integrated reversing valve, an opening c of the reversing valve is connected with the oil inlet, an opening b of the reversing valve is connected with a lower control opening, and an opening d of the reversing valve is connected with the oil return opening.

Furthermore, the control module also comprises a first two-way valve and a second two-way valve, wherein an a port of the first two-way valve is connected with an upper control port and an oil inlet of the large-diameter pipe barrel integrated reversing valve, a d port of the first two-way valve is connected with a b port of the reversing valve, a b port of the first two-way valve is connected with a lower control port, a c port of the first two-way valve is connected with an a port of the second two-way valve, a b port of the second two-way valve is connected with an oil return port and a d port of the reversing valve, and a d port of the second two-way valve is connected with an a port of the reversing valve.

Specifically, the basic structure of the first, large-diameter pipe barrel integrated reversing valve is as follows: the basic structure of the valve can use a split structure, namely, the valve comprises: the lower valve body, the middle valve body, the case, go up the valve body and constitute, carry out special design to business turn over hydraulic fluid port, control hydraulic fluid port, increase first check valve and second check valve in the control chamber simultaneously, can effectively improve the service behavior of case, effectively prolong the life and the work efficiency of integrated valve.

Secondly, if the valve core both sides adopt different pressure effect areas, can use differential control, can satisfy the operating mode requirement that action speed, frequency are higher, the integrated valve is installed among the hydro-cylinder, can use with the buffer bush cooperation of hydro-cylinder, makes the hydro-cylinder have the buffering effect when the motion end, can rely on mechanical structure, and the extreme position when piston rod, piston move to the stroke carries out the action of forcing the switching-over, guarantees the safety in utilization of equipment.

Thirdly, in the requirement of extra-large flow, the position of the valve core is controlled by an upper control port and a lower control port: (two-stage control) when the integrated valve is used in the control working condition with larger flow demand, the volume of the integrated valve needs to be correspondingly increased to meet the oil passing area, and meanwhile, the pressure acting area of a control cavity between the valve core and the valve body also needs to be correspondingly increased to overcome the liquid flow resistance during reversing.

Due to the increased area of the control chamber, the flow demand of the integrated valve during actuation increases, requiring the use of a larger bore control valve. In order to better meet the working condition requirement and reduce the manufacturing and maintenance cost, two ends of a valve core of the integrated valve adopt design structures with different diameters, so that the action areas of an upper control cavity and a lower control cavity are different; the integrated valve and the control module are combined for use, and the rapid reversing control is carried out by adopting a differential principle.

The invention has the beneficial effects that: the invention relates to a novel large-diameter pipe barrel integrated reversing valve which can be integrated in a large-diameter pipeline or equipment and has the following advantages:

1. the structure is compact and simple;

2. the requirement of extra-large flow can be met;

3. the valve core is quickly and sensitively reversed;

4. the valve core reversing buffer structure effectively prolongs the service life of the valve;

5. the control cavity can customize different action areas to meet different use working conditions;

6. the hydraulic cylinder is used in the oil cylinder, can have a tail end stroke buffering function, and can have a limiting protection function of forced reversing of the tail end stroke;

7. the hydraulic cylinder can be used for a single-rod oil cylinder and a double-rod oil cylinder, and the compatibility of the oil cylinder varieties is strong.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic structural diagram of a first embodiment of a large-bore pipe barrel integrated reversing valve;

FIG. 2 is a schematic structural diagram of a fourth embodiment of the large-bore pipe barrel integrated reversing valve;

FIG. 3 is a schematic structural view of the large-bore pipe barrel integrated reversing valve in cooperation with a piston and a piston rod;

FIG. 4 is a schematic diagram of the operational configuration of a first embodiment of a control system having a large bore tube integrated diverter valve;

FIG. 5 is a schematic view of another operational configuration of the first embodiment of the control system with a large bore cartridge integrated diverter valve;

FIG. 6 is a schematic diagram of a second embodiment operating configuration of a control system having a large bore tube integrated diverter valve;

FIG. 7 is a schematic view of another operating configuration of a second embodiment of a control system having a large bore tube integrated diverter valve;

1. a tube barrel; 11. a second seal structure; 12. an oil inlet channel; 13. a lower control channel; 14. an upper control channel; 15. an oil return passage; 2. a piston; 3. a piston rod; 4. an upper valve body; 41. an oil return port; 5. a lower valve body; 51. a lower valve body; 511. an oil inlet; 52. a middle valve body; 521. an upper control port; 522. a lower control port; 53. a first seal structure; 54. a first lumen; 55. a second lumen; 56. a first check valve; 57. a second one-way valve; 6. a valve core; 61. an annular boss; 7. buffering the limiting part; 81. a diverter valve; 82. a first two-way valve; 83. a second two-way valve.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the invention.

As shown in fig. 1, the first embodiment of the large-diameter pipe barrel integrated reversing valve is as follows:

a large-diameter pipe barrel integrated reversing valve comprises an upper valve body 4, a lower valve body 5 and a valve core 6, wherein one end of the valve core 6, which is close to the upper valve body 4, is an upper control cavity, one end of the valve core 6, which is close to the lower valve body 5, is a lower control cavity, the valve core 6 is internally provided with a cavity, the middle part of the outer side of the valve core 6 is provided with an annular boss 61, the upper valve body 4 is sleeved at one end of the outer side of the valve core 6, the end part of the upper valve body 4 is provided with an oil return port 41, the lower valve body 5 is sleeved at the other end of the outer side of the valve core 6, the lower valve body 5 is fixedly and hermetically connected with the upper valve body 4, the lower valve body 5 is sequentially provided with an upper control port 521, a lower control port 522 and an oil inlet 511 along the direction far away from the oil return port 41, first sealing structures 53 are respectively arranged between the adjacent two ports of the oil return port 41, the lower control port 522 and the oil inlet 511, namely, the two ports are separated by the first sealing structures 53, a first sealing structure 53 is arranged between the upper control port 521 and the lower control port 522, a first sealing structure 53 is arranged between the lower control port 522 and the oil inlet 511, of course, a sealing element can also be arranged on one side of the oil inlet 511 away from the lower control port 522, a sealing element can also be arranged on one end of the oil return port 41 away from the upper control port 521, a circular seam cavity is arranged between the inner wall of the lower valve body 5 and the outer wall of the valve core 6, the circular seam cavity is divided into a first inner cavity 54 close to the upper valve body 4 and a second inner cavity 55 away from the upper valve body 4 by an annular boss 61, the control area of the first inner cavity 54 can be equal to that of the second inner cavity 55, the first inner cavity 54 is communicated with the upper control port 521, the second inner cavity 55 is communicated with the lower control port 522, the upper oil return port 41 is opened, the upper control cavity can push the valve core 6 to move downwards, the lower end of the valve core 6 seals the oil inlet 511, the lower end 511 is opened, the lower end 511 pushes the valve core 6 to move upwards, the upper end of the valve core 6 seals the oil return port 41.

As shown in fig. 2, the second embodiment of the large-bore pipe barrel integrated reversing valve:

the difference from the first embodiment is that: in order to facilitate integration and integrated use, further, a pipe barrel 1 is sleeved outside the lower valve body 5 and the upper valve body 4, an oil inlet channel 12, an upper control channel 14, a lower control channel 13 and an oil return channel 15 which sequentially correspond to the oil inlet 511, the upper control port 521, the lower control port 522 and the oil return port 41 are respectively arranged on the pipe barrel 1, a second sealing structure 11 is respectively arranged between the adjacent two channels of the oil inlet channel 12, the upper control channel 14, the lower control channel 13 and the oil return channel 15, the adjacent two channels are spaced through the second sealing structure 11, and a gland is arranged at one end, far away from the lower valve body 5, of the upper valve body 4.

Embodiment three of the large-bore pipe barrel integrated reversing valve:

as shown in fig. 2, the difference from the first embodiment is that: the valve can be used for controlling the extra-large flow of the valve body, the control area of the first inner cavity 54 is not equal to that of the second inner cavity 55, namely the control area of the first inner cavity 54 is larger than that of the second inner cavity 55, or the control area of the first inner cavity 54 is smaller than that of the second inner cavity 55.

2-3, the fourth embodiment of the large-bore cartridge integrated diverter valve:

a large-diameter pipe barrel integrated reversing valve comprises an upper valve body 4, a lower valve body 5 and a valve core 6, wherein one end of the valve core 6, which is close to the upper valve body 4, is an upper control cavity, one end of the valve core 6, which is close to the lower valve body 5, is a lower control cavity, the valve core 6 is internally provided with a cavity, the middle part of the outer side of the valve core 6 is provided with an annular boss 61, the upper valve body 4 is sleeved at one end of the outer side of the valve core 6, the end part of the upper valve body 4 is provided with an oil return port 41, the lower valve body 5 is sleeved at the other end of the outer side of the valve core 6, the lower valve body 5 is fixedly and hermetically connected with the upper valve body 4, the lower valve body 5 is sequentially provided with an upper control port 521, a lower control port 522 and an oil inlet 511 along the direction far away from the oil return port 41, first sealing structures 53 are respectively arranged between the adjacent two ports of the oil return port 41, the lower control port 522 and the oil inlet 511, namely, the two ports are separated by the first sealing structures 53, a first sealing structure 53 is arranged between the upper control port 521 and the lower control port 522, a first sealing structure 53 is arranged between the lower control port 522 and the oil inlet 511, of course, a sealing element can also be arranged on one side of the oil inlet 511 away from the lower control port 522, a sealing element can also be arranged on one end of the oil return port 41 away from the upper control port 521, a circular seam cavity is arranged between the inner wall of the lower valve body 5 and the outer wall of the valve core 6, the circular seam cavity is divided into a first inner cavity 54 close to the upper valve body 4 and a second inner cavity 55 far away from the upper valve body 4 by a circular boss 61, the first inner cavity 54 is communicated with the upper control port 521, the second inner cavity 55 is communicated with the lower control port 522, a first one-way valve 56 is arranged between the oil return port 41 and the upper control port 521, a second one-way valve 57 is arranged between the oil inlet 511 and the lower control port 522, the first one-way valve 56 and the second one-way valve 57 are both arranged in the lower valve body 5, and the upper control cavity can push the valve core 6 to move downwards, the lower end of the valve core 6 seals the oil inlet 511, the oil in the lower control cavity pushes the valve core 6 to move upwards, the upper end of the valve core 6 seals the oil return port 41, for the convenience of mounting and dismounting, the lower valve body 5 comprises a lower valve body 51 and a middle valve body 52 which are detachably connected with each other, the lower valve body 51 is disposed at an end of the valve core 6 away from the upper valve body 4 and the oil inlet 511 is disposed in the lower valve body 51, the middle valve body 52 is arranged between the upper valve body 4 and the lower valve body 51, the pipe barrel 1 is sleeved outside the lower valve body 5 and the upper valve body 4, the pipe barrel 1 is respectively provided with an oil inlet channel 12, an upper control channel 14, a lower control channel 13 and an oil return channel 15 which are sequentially corresponding to the oil inlet 511, the upper control port 521, the lower control port 522 and the oil return port 41, and second sealing structures 11 are respectively arranged between two adjacent channels of the oil inlet channel 12, the upper control channel 14, the lower control channel 13 and the oil return channel 15 and respectively separate the two adjacent channels through the second sealing structures 11.

The working principle of the fourth embodiment of the large-drift-diameter pipe barrel integrated reversing valve is as follows:

setting: an oil inlet 511 of the large-drift-diameter pipe barrel integrated reversing valve is a P port, an oil outlet is a T port, a lower control port 522 is an A port, and an upper control port 521 is a B port; the hydraulic medium enters the interior of the integrated valve through the P port or returns to the oil tank through the T port, and the moving direction of the medium is determined by the position of the valve core 6.

The position of the valve core 6 is controlled by the port A and the port B: (direct control)

(a) When the port A is pressurized and the port B is communicated with an oil tank, the valve core 6 moves from left to right, the port P is gradually opened while the port T is completely sealed by the valve core 6, and pressure oil enters the interior of the integrated valve from the port P;

(b) along with the valve core 6 continuously moving to the right, the oil inlet B is gradually closed by the valve core 6, and the drift diameter is gradually reduced, so that the movement of the valve core 6 is decelerated, and the impact of the movement end position of the valve core 6 is relieved;

(c) when the port B is pressurized and the port A is communicated with an oil tank, because the port B is plugged by the valve core 6 at the moment, oil can enter the right cavity of the valve core 6 through the one-way valve, the valve core 6 is pushed to move leftwards, the drift diameter of the port B is increased along with the movement of the valve core 6, and the movement of the valve core 6 is accelerated;

(d) along with the movement of the valve core 6, when the port P is completely closed, the port T is gradually opened, and oil in the integrated valve can flow back to the oil tank through the port T;

(e) along with the valve core 6 continuously moving leftwards, the oil inlet A is gradually closed by the valve core 6, the drift diameter is gradually reduced, so that the movement of the valve core 6 is decelerated, and the impact of the movement end position of the valve core 6 is relieved;

(f) through the alternate oil inlet and outlet of the ports A and B, the valve core 6 is pushed to reciprocate, so that the flow direction of oil in the integrated valve and in an external pipeline is changed.

Referring to fig. 4-5, a first embodiment of a control system with a large bore cartridge integrated diverter valve: the utility model provides a control system with big latus rectum bobbin integration switching-over valve, includes big latus rectum bobbin integration switching-over valve and control module, control module can realize quick switching-over control oil circuit through differential principle, and control module includes switching-over valve 81, switching-over valve 81's a mouth is connected and its c mouth is connected with oil inlet 511 with big latus rectum bobbin integration switching-over valve's last control mouth 521, and switching-over valve 81b mouth is connected with lower control mouth 522 and its d mouth is connected with oil return 41, and this technical scheme can realize large-traffic oil output.

Referring to fig. 6-7, a second embodiment of a control system with a large bore cartridge integrated diverter valve:

a control system with a large-bore pipe barrel integrated reversing valve comprises the large-bore pipe barrel integrated reversing valve and a control module, wherein the control module can realize a quick reversing control oil path through a differential principle, the control module comprises a reversing valve 81, a first two-way valve 82 and a second two-way valve 83, an a port of the reversing valve 81 is connected with an upper control port 521 of the large-bore pipe barrel integrated reversing valve, a c port of the reversing valve is connected with an oil inlet 511, a b port of the reversing valve 81 is connected with a lower control port 522, a d port of the reversing valve 81 is connected with an oil return port 41, an a port of the first two-way valve 82 is connected with the upper control port 521 and the oil inlet 511 of the large-bore pipe barrel integrated reversing valve, a port of the first two-way valve 82 is connected with a port of the reversing valve 81, a port of the first two-way valve 82 is connected with the lower control port 522, a port of the first two-way valve 82 is connected with an a port of the second two-way valve 83, a port of the second two-way valve 83 is connected with the oil return port 41, a port of the second two-way valve 83, The port d of the reversing valve 81 is connected, the port d of the second two-way valve 83 is connected with the port a of the reversing valve 81, the technical scheme can realize extra-large flow oil discharge, the position of the valve core 6 is controlled by the port A and the port B, when the integrated valve is used in a control working condition with a larger flow demand, the volume of the integrated valve needs to be correspondingly increased to meet the oil passing area, and meanwhile, the pressure acting area of a control cavity between the valve core 6 and the upper valve body 4 or the lower valve body 5 needs to be correspondingly increased to overcome the liquid flow resistance during reversing.

The increased area of the control chamber increases the flow demand of the integrated valve during actuation, which requires

A larger bore control valve is used. In order to better meet the working condition requirement and reduce the manufacturing and maintenance cost, the two ends of the valve core 6 of the integrated valve adopt design structures with different diameters, so that the action areas of A, B control cavities are different; the structure is combined with a control module for use, and a differential principle is adopted for rapid reversing control.

In the present invention, the first sealing structure 53 and the second sealing structure 11 may be sealing rings, sealing gaskets, or other components for sealing in various prior art that can be applied to a hydraulic system, and it should be emphasized that, in the present invention, because of the system diagram, the modes of various "connections" may be direct connections or indirect connections through other components, and are not limited to the connection modes mentioned in the present invention.

In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "disposed," "provided," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: the above-mentioned embodiments are merely specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.

Claims

1. The utility model provides an integrated switching-over valve of big latus rectum bobbin, includes valve body, lower valve body and case, the one end that the case is close to last valve body is control chamber and the case is close to the one end of valve body down and is control chamber, its characterized in that: the valve core is internally provided with a cavity, the middle part of the outer side of the valve core is provided with an annular boss, the upper valve body is sleeved at one end of the outer side of the valve core, the end part of the upper valve body is provided with an oil return port, the lower valve body is sleeved at the other end of the outer side of the valve core, the lower valve body is fixedly and hermetically connected with the upper valve body, the lower valve body is sequentially provided with an upper control port, a lower control port and an oil inlet along the direction of the lower valve body far away from the oil return port, a first sealing structure is respectively arranged between the adjacent two ports of the oil return port, the upper control port, the lower control port and the oil inlet, the adjacent two ports are separated by the first sealing structure, an annular gap cavity is arranged between the inner wall of the lower valve body and the outer wall of the valve core, the annular boss divides the annular gap cavity into a first inner cavity close to the upper valve body and a second inner cavity far away from the upper valve body, the first inner cavity is communicated with the upper control port, the second inner cavity is communicated with the lower control port, the oil inlet of the upper control cavity can push the valve core to move downwards, and the oil inlet is blocked by the lower end of the valve core, the lower control cavity is filled with oil to push the valve core to move upwards, and the upper end of the valve core is used for plugging an oil return port.

2. The large-diameter pipe barrel integrated reversing valve according to claim 1, characterized in that: the lower valve body and the upper valve body are sleeved with a pipe barrel, the pipe barrel is respectively provided with an oil inlet channel, an upper control channel, a lower control channel and an oil return channel which sequentially correspond to the oil inlet, the upper control port, the lower control port and the oil return port, second sealing structures are respectively arranged between two adjacent oil inlet channels, the upper control channel, the lower control channel and the oil return channel, and the two adjacent oil inlet channels, the upper control channel, the lower control channel and the oil return channel are spaced by the second sealing structures.

3. The large-diameter pipe barrel integrated reversing valve according to claim 1, characterized in that: and a first one-way valve is arranged between the oil return port and the upper control port, a second one-way valve is arranged between the oil inlet and the lower control port, and the first one-way valve and the second one-way valve are both arranged in the lower valve body.

4. The large-diameter pipe barrel integrated reversing valve according to claim 1, characterized in that: the lower valve body comprises a lower valve body and a middle valve body which are detachably connected with each other, the lower valve body is arranged at one end, away from the upper valve body, of the valve core, the oil inlet is formed in the lower valve body, and the middle valve body is arranged between the upper valve body and the lower valve body.

5. The large-diameter pipe barrel integrated reversing valve according to claim 1, characterized in that: the first lumen control area is equal to the second lumen control area.

6. The large-diameter pipe barrel integrated reversing valve according to claim 1, characterized in that: the first inner cavity control area is not equal to the second inner cavity control area.

7. A control system with a large-drift-diameter pipe barrel integrated reversing valve is characterized in that: the large-diameter pipe barrel integrated reversing valve comprises the large-diameter pipe barrel integrated reversing valve as claimed in any one of claims 1 to 6 and a control module, wherein the control module can realize quick reversing of an oil path through a differential principle.

8. A control system with a large-drift-diameter pipe barrel integrated reversing valve is characterized in that: the control module comprises a reversing valve, an opening a of the reversing valve is connected with an upper control opening of the large-drift-diameter pipe barrel integrated reversing valve, an opening c of the reversing valve is connected with the oil inlet, an opening b of the reversing valve is connected with a lower control opening, and an opening d of the reversing valve is connected with the oil return opening.

9. The control system of claim 7 for a control system having a large bore barrel integrated diverter valve, wherein: the control module further comprises a first two-way valve and a second two-way valve, wherein an a port of the first two-way valve is connected with an upper control port and an oil inlet of the large-diameter pipe barrel integrated reversing valve, a d port of the first two-way valve is connected with a b port of the reversing valve, the b port of the first two-way valve is connected with a lower control port, a c port of the first two-way valve is connected with the a port of the second two-way valve, the b port of the second two-way valve is connected with an oil return port and a d port of the reversing valve, and the d port of the second two-way valve is connected with the a port of the reversing valve.