CN214197442U

CN214197442U - Hydraulic control reversing valve

Info

Publication number: CN214197442U
Application number: CN202022711495.2U
Authority: CN
Inventors: 陈纪恩; 方宇; 周也萍
Original assignee: Wenzhou Ji'an Machinery Co ltd
Current assignee: Wenzhou Ji'an Machinery Co ltd
Priority date: 2020-11-21
Filing date: 2020-11-21
Publication date: 2021-09-14
Anticipated expiration: 2030-11-21

Abstract

The utility model discloses a hydraulic control reversing valve, which comprises a valve body and a valve core component arranged in the valve body, wherein an installation cavity for installing the valve core component is arranged in the valve body; the upper end and the lower end of the valve body are provided with a plurality of connectors for connecting the liquid inlet pipe, the liquid outlet pipe and the control oil circuit; the connector activity is pegged graft and is had the regulation end cap, and the valve body corresponds the axial both sides of each connector and is equipped with the locking groove tangent with the connector, and the activity is inserted in the locking inslot and is equipped with the U type card, and U type card both sides are supported and are leaned on locating the spacing card arch of adjusting the end cap periphery. The utility model discloses need not to realize the quick adjustment with the help of other pipelines when adjusting pipeline hookup location, improved the stability and the convenience of the connection adjustment of corresponding coupling.

Description

Hydraulic control reversing valve

Technical Field

The utility model belongs to the technical field of the valve, especially, relate to a liquid accuse switching-over valve.

Background

The hydraulic control reversing valve can make the valve body reverse the valve body structure by controlling the fluid pressure. The valve plays a more important role in the hydraulic support equipment of the coal mine machinery. The hydraulic control reversing valve is different from a common valve in that one more control oil way is provided, when the control oil way is not communicated with pressure oil, the hydraulic control reversing valve works like a common one-way valve, and fluid only flows from an oil inlet to an oil outlet and can not realize reversing flow. When the control pressure is input into the control oil path, the piston ejector rod moves under the action of the pressure oil, and the one-way valve is ejected by the ejector rod to connect the oil inlet and the oil outlet. The connecting position that is used for connecting tube on the pilot operated directional control valve at present adopts threaded connection structure more, need realize with the help of other instruments to connect fixedly when adjusting pipeline connecting position, and the convenience is relatively poor, influences work efficiency to a certain extent.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a liquid accuse switching-over valve has improved the connection structure on the valve body, has improved the convenience of connecting pipe position control.

The utility model adopts the technical proposal that: a hydraulic control reversing valve comprises a valve body and a valve core assembly arranged in the valve body, wherein an installation cavity for installing the valve core assembly is arranged in the valve body; the upper end and the lower end of the valve body are provided with a plurality of connectors for connecting the liquid inlet pipe, the liquid outlet pipe and the control oil circuit; the adjustable plug is movably inserted into the connecting port, locking grooves tangent to the connecting ports are formed in the two axial sides of the valve body corresponding to the connecting ports, U-shaped clamps are movably inserted into the locking grooves, and two sides of each U-shaped clamp abut against limiting clamp protrusions arranged on the periphery of the corresponding adjusting plug.

When the hydraulic control reversing valve is used, the hydraulic control reversing valve can be connected to a corresponding connecting port as required, an unconnected pipeline can be plugged through the adjusting plug, the adjusting plug is inserted into the connecting port in an inserting mode, and the hydraulic control reversing valve is not required to be mounted and dismounted by means of other tools, so that the convenience of pipeline adjustment is greatly improved; in addition, each adjusting plug can be fixed through a U-shaped clamp, and after the adjusting plug is inserted into a corresponding connecting port, the U-shaped clamp can be inserted into the locking groove, so that two sides of the U-shaped clamp abut against the periphery of the adjusting plug, the limiting of the adjusting plug is realized, and the adjusting plug is prevented from falling; the stability of shutoff installation has been improved, the operation of being convenient for simultaneously.

Preferably, the valve core assembly comprises a plurality of valve core units, each valve core unit comprises an upper valve core sleeve and a lower valve core sleeve which are arranged oppositely up and down, and hydraulic reversing cavities are formed in the upper valve core sleeve and the lower valve core sleeve; the hydraulic reversing valve is characterized in that the upper end of the upper valve core sleeve is sealed, the lower end of the lower valve core sleeve is opened, a piston rod is arranged in the hydraulic reversing cavity, the upper end and the lower end of the piston rod are respectively movably sleeved with a piston sleeve positioned on the inner top wall of the upper valve core sleeve and a spring positioned in the lower valve core sleeve, the upper end of the spring is abutted against a positioning convex ring arranged on the periphery of the piston rod, an oil circuit cavity is axially arranged at the lower end of the piston rod, and the upper end of the oil circuit cavity radially penetrates through the peripheral surface of the piston rod.

Preferably, a butt joint ring is arranged between the upper valve core sleeve and the lower valve core sleeve, and sealing rings are sleeved on the peripheries of the upper valve core sleeve, the lower valve core sleeve and the butt joint ring.

Preferably, the peripheries of the upper valve core sleeve, the lower valve core sleeve and the butt ring are provided with seal grooves for mounting seal rings.

Preferably, the periphery of one end of the upper valve core sleeve opposite to the lower valve core sleeve is provided with a hydraulic hole.

Preferably, the upper end of the upper valve core sleeve is provided with an inner hexagonal mounting hole.

Preferably, the installation cavity comprises a unit installation cavity for installing each valve core unit, the unit installation cavity penetrates through the upper end of the valve body,

preferably, the upper end of the valve body is provided with a mounting notch positioned on the inner side of the connecting port, and each unit mounting cavity extends into the valve body along the bottom wall of the mounting notch.

Preferably, the periphery of the inserting end of the adjusting plug is sleeved with a plugging ring.

The utility model has the advantages that: the utility model discloses a pilot operated directional control valve has improved the connector structure on to the valve body, need not to realize quick adjustment with the help of other pipelines when adjusting pipeline hookup location, has improved the stability and the convenience of the connection adjustment of corresponding coupling.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. In the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

Reference numerals: the valve comprises a valve body 100, a connecting port 110, an installation notch 120, a locking groove 130, an adjusting plug 200, a limiting clamping protrusion 210, a U-shaped clamp 300, an upper valve core sleeve 400, a lower valve core sleeve 500, a piston rod 600, a piston sleeve 700, a spring 800, a butt ring 900, a sealing ring 1000, a hydraulic hole 1100 and a blocking ring 1200.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1 and 2: the hydraulic control reversing valve of the embodiment comprises a valve body 100 and a valve core assembly arranged in the valve body 100, wherein an installation cavity for installing the valve core assembly is arranged in the valve body 100; a plurality of connecting ports 110 for connecting a liquid inlet pipe, a liquid outlet pipe and a control oil path are arranged at the upper end and the lower end of the valve body 100; the adjusting plugs 200 are movably inserted into the connecting ports 110, locking grooves 130 tangential to the connecting ports 110 are formed in the two axial sides of the valve body 100 corresponding to the connecting ports 110, U-shaped clamps 300 are movably inserted into the locking grooves 130, and two sides of each U-shaped clamp 300 abut against limiting clamp protrusions 210 arranged on the peripheries of the adjusting plugs 200. When the hydraulic control reversing valve is used, the hydraulic control reversing valve can be connected to the corresponding connecting port 110 as required, the unconnected pipeline can be plugged through the adjusting plug 200, the adjusting plug 200 is inserted into the connecting port 110 in an inserting mode, and the hydraulic control reversing valve is not required to be installed and detached by other tools, so that the convenience of pipeline adjustment is greatly improved; in addition, each adjusting plug 200 can be fixed by the U-shaped card 300, and after the adjusting plug 200 is inserted into the corresponding connecting port 110, the U-shaped card 300 can be inserted into the locking groove 130 and two sides of the U-shaped card 300 abut against the limiting clamping protrusions 210 on the periphery of the adjusting plug 200, so that the limiting of the adjusting plug 200 is realized, and the adjusting plug 200 is prevented from falling; the stability of shutoff installation has been improved, the operation of being convenient for simultaneously. In this embodiment, the plugging ring 1200 is sleeved on the periphery of the plugging end of the adjusting plug 200. The plugging ring 1200 can plug the gap between the connection port 110 and the end of the adjusting plug 200, thereby avoiding oil leakage.

As shown in fig. 1 and 2: in this embodiment, the valve core assembly is installed inside the valve body 100 and includes a plurality of valve core units, each of the valve core units includes an upper valve core sleeve 400 and a lower valve core sleeve 500 which are arranged in an up-down opposite manner, and hydraulic reversing cavities are formed in the valve core sleeves of the upper valve core sleeve 400 and the lower valve core sleeve 500; the upper end of the upper valve core sleeve 400 is closed, the lower end of the lower valve core sleeve 500 is opened, a piston rod 600 is arranged in the hydraulic reversing cavity, the upper end and the lower end of the piston rod 600 are respectively movably sleeved with a piston sleeve 700 positioned on the inner top wall of the upper valve core sleeve 400 and a spring 800 positioned in the lower valve core sleeve 500, the upper end of the spring 800 abuts against a positioning convex ring arranged on the periphery of the piston rod 600, the lower end of the piston rod 600 is provided with an oil way cavity arranged along the axial direction of the piston rod 600, and the upper end of the oil way cavity radially penetrates through the peripheral surface of the piston rod 600; further, the outer circumferences of the opposite ends of the upper and

lower spool sleeves

400 and 500 are provided with hydraulic holes 1100. In this way, the hydraulic pipelines connected through the connection ports 110 can be switched by the spool unit, and the connection mode of the hydraulic oil circuit of the reversing spool belongs to the prior art in the technical field, and is not described herein again.

As shown in fig. 1 and 2: in order to improve the sealing performance of the internal valve core structure, a butt joint ring 900 is arranged between the upper valve core sleeve 400 and the lower valve core sleeve 500, a sealing ring 1000 is sleeved on the peripheries of the upper valve core sleeve 400, the lower valve core sleeve 500 and the butt joint ring 900, and a sealing groove for mounting the sealing ring 1000 is arranged on the peripheries of the upper valve core sleeve 400, the lower valve core sleeve 500 and the butt joint ring 900. The gaps between the upper valve core sleeve 400, the lower valve core sleeve 500, the butting ring 900 and the installation cavity can be filled under the action of the sealing ring 1000, and the sealing performance of the internal installation is ensured.

As shown in fig. 1 and 2: the upper end of the upper valve core sleeve 400 is provided with an inner hexagonal mounting hole. Can realize quick assembly disassembly through setting up the hexagon socket head mounting hole, the installation cavity in this embodiment is including the unit installation cavity of installing each case unit, the unit installation cavity runs through valve body 100 upper end, and valve body 100 upper end is equipped with the inboard installation notch 120 that is located connector 110, each the unit installation cavity extends to valve body 100 along installation notch 120 diapire. Thus, the bottom surface of the mounting groove 120 is lower than the respective connection ports 110, and interference of the installation of the cartridge unit with the installation of the U-card 300 can be prevented.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A hydraulic control reversing valve comprises a valve body (100) and a valve core assembly arranged in the valve body (100), wherein an installation cavity for installing the valve core assembly is arranged in the valve body (100); the method is characterized in that:

the upper end and the lower end of the valve body (100) are provided with a plurality of connecting ports (110) for connecting a liquid inlet pipe, a liquid outlet pipe and a control oil way; the adjustable plug (200) is movably inserted into the connecting port (110), locking grooves (130) tangent to the connecting ports (110) are formed in the two axial sides of the valve body (100) corresponding to the connecting ports (110), U-shaped clamps (300) are movably inserted into the locking grooves (130), and two sides of each U-shaped clamp (300) abut against limiting clamp protrusions (210) arranged on the periphery of the corresponding adjusting plug (200).

2. The pilot operated directional control valve according to claim 1, wherein: the valve core assembly comprises a plurality of valve core units, each valve core unit comprises an upper valve core sleeve (400) and a lower valve core sleeve (500) which are arranged oppositely from top to bottom, and hydraulic reversing cavities are formed in the valve core sleeves of the upper valve core sleeve (400) and the lower valve core sleeve (500); the hydraulic reversing valve is characterized in that the upper end of the upper valve core sleeve (400) is sealed, the lower end of the lower valve core sleeve (500) is opened, a piston rod (600) is arranged in the hydraulic reversing cavity, the upper end and the lower end of the piston rod (600) are respectively movably sleeved with a piston sleeve (700) located on the inner top wall of the upper valve core sleeve (400) and a spring (800) located in the lower valve core sleeve (500), the upper end of the spring (800) abuts against a positioning convex ring located on the periphery of the piston rod (600), an oil way cavity axially arranged along the piston rod (600) is arranged at the lower end of the piston rod (600), and the upper end of the oil way cavity radially penetrates through the peripheral face of the piston rod (600).

3. The pilot operated directional control valve according to claim 2, wherein: and a butt joint ring (900) is arranged between the upper valve core sleeve (400) and the lower valve core sleeve (500), and a sealing ring (1000) is sleeved on the peripheries of the upper valve core sleeve (400), the lower valve core sleeve (500) and the butt joint ring (900).

4. A pilot operated directional control valve according to claim 3, wherein: and seal grooves for mounting seal rings (1000) are arranged on the peripheries of the upper valve core sleeve (400), the lower valve core sleeve (500) and the butt ring (900).

5. The pilot operated directional control valve according to claim 2, wherein: and the periphery of one end of the upper valve core sleeve (400) opposite to the lower valve core sleeve (500) is provided with a hydraulic hole (1100).

6. The pilot operated directional control valve according to claim 2, wherein: the upper end of the upper valve core sleeve (400) is provided with an inner hexagonal mounting hole.

7. The pilot operated directional control valve according to claim 2, wherein: the installation cavity comprises unit installation cavities for installing the valve core units, and the unit installation cavities penetrate through the upper end of the valve body (100).

8. The pilot operated directional control valve according to claim 7, wherein: the upper end of the valve body (100) is provided with an installation notch (120) which is positioned on the inner side of the connecting port (110), and each unit installation cavity extends towards the inside of the valve body (100) along the bottom wall of the installation notch (120).

9. The pilot operated directional control valve according to claim 1, wherein: the periphery of the inserting end of the adjusting plug (200) is sleeved with a plugging ring (1200).