CN211370862U

CN211370862U - Hydraulic valve

Info

Publication number: CN211370862U
Application number: CN201921868779.3U
Authority: CN
Inventors: 郭金辉; 刘攀
Original assignee: Suzhou Weifu Valve Electromechanical Co ltd
Current assignee: Chengdu Kaihang Automation Complete Equipment Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-08-28
Anticipated expiration: 2029-11-01

Abstract

The utility model discloses a hydraulic valve, which comprises a valve body, the upper end fixed mounting of valve body has the shell body, the inside of shell body is equipped with interior casing, the upper end of shell body is run through and is equipped with the pull rod, the bottom of pull rod stretches into the inside top fixed connection with interior casing of shell body, slidable mounting has the connecting plate in the shell body, interior casing fixed mounting is on the connecting plate, the bottom of connecting plate is equipped with spacing section of thick bamboo, spacing section of thick bamboo runs through the bottom of shell body and stretches out in the valve pocket of valve body, the inside of interior casing is equipped with the magnetic core, be equipped with the coil around the magnetic core on the inside wall of interior casing, the bottom body coupling of magnetic core has the valve rod, the valve rod runs. The utility model discloses a control mode of electronic and manual dual mode combination has effectively solved hydrovalve electric control mode singleness, can influence valve control's problem when the circuit breaks down.

Description

Hydraulic valve

Technical Field

The utility model relates to a hydrovalve technical field, concretely relates to hydrovalve.

Background

The hydraulic valve is an element for controlling the pressure, flow and liquid flow direction of oil in a hydraulic system, and the basic structure of the hydraulic valve consists of a valve body, a valve core (a rotary valve or a slide valve) and a component (such as a spring, an electromagnet and the like) for driving the valve core to act. When the hydraulic valve works, the relationship among the valve port size of all the valves, the pressure difference between the oil inlet and the oil outlet of the valves and the flow of the valves accords with an orifice flow formula, and only the control parameters of various valves are the same.

The control of valve can adopt multiple transmission mode, when adopting electronic mode, has unexpected circumstances such as contact failure, outage to take place, and current valve does not have the emergency measure to taking place this kind of circumstances, because control mode is single, can bring inconvenience for valve control, leads to the fact the influence to whole hydraulic system even.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model aims to provide a hydraulic valve for solve among the prior art hydrovalve and adopt single electric control mode, can influence the problem of valve control when the circuit breaks down.

In order to achieve the above and other related objects, the present invention provides a hydraulic valve, comprising a valve body, an outer casing fixedly mounted at the upper end of the valve body, an inner casing disposed inside the outer casing, a pull rod disposed through the upper end of the outer casing, a connecting plate slidably mounted in the outer casing, a limiting cylinder disposed at the bottom of the connecting plate and extending out of the valve cavity of the valve body, a magnetic core disposed inside the inner casing, a coil disposed around the magnetic core on the inner wall of the inner casing, a valve rod integrally connected to the bottom of the magnetic core, a wedge-shaped weight disposed inside the valve cavity and penetrating through the connecting plate, the bottom in the valve cavity is provided with an opening and closing inclined block, the inclined plane of the opening and closing inclined block is correspondingly matched with the inclined plane of the wedge-shaped heavy block, one side of the opening and closing inclined block is abutted to the valve plug, the other side of the opening and closing inclined block is connected with a guide rod, the guide rod extends into the guide cylinder, and the guide rod is connected with the cylinder wall of the guide cylinder through a tension spring.

Preferably, the outside cover of pull rod is equipped with first spring, the both ends of first spring are connected with shell body and interior casing respectively.

Preferably, the bottom of the magnetic core is connected with the connecting plate through a second spring.

Preferably, the outer side of the valve rod is provided with a bump, the bump moves along with the valve rod in the limiting cylinder, and the bottom of the limiting cylinder is provided with a step for supporting the bump.

Preferably, a power supply is arranged on one side of the outer shell, and the coil is electrically connected with the power supply.

Preferably, a first sealing ring is arranged between the bottom of the outer shell and the limiting cylinder.

Preferably, a second sealing ring is arranged between the outer side of the valve rod and the connecting plate.

Preferably, an insulating sleeve is arranged between the end part of the coil and the inner side wall of the inner shell.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a control mode of electronic and manual dual mode combination, through control coil's on-state, make the magnetic core drive the valve rod and rise or descend, thereby make to open and close the sloping block and control about in the valve pocket, realize opening and shutting of valve plug, when the circuit breaks down, can manually stimulate the pull rod, make spacing section of thick bamboo hold the lug on the valve rod, drive the valve rod and remove, thereby realize the purpose of manual control hydrovalve, it is single effectively to have solved hydrovalve electric control mode, can influence valve control's problem when the circuit breaks down.

Drawings

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

Fig. 1 is a schematic structural view of a hydraulic valve provided by the present invention;

fig. 2 is a schematic structural view of the inner housing of the present invention;

fig. 3 is a schematic diagram illustrating a state in which a hydraulic valve provided by the present invention is electrically controlled;

fig. 4 is a schematic diagram of a state that a hydraulic valve provided by the present invention is manually controlled.

Wherein the reference numerals are specified as follows:

the valve comprises a valve body 1, an outer shell 2, a first spring 21, a first sealing ring 22, an inner shell 3, a coil 31, a second spring 32, an insulating sleeve 33, a pull rod 4, a connecting plate 5, a limiting cylinder 6, a magnetic core 7, a valve rod 8, a bump 81, a second sealing ring 82, a wedge-shaped weight 9, an opening and closing inclined block 10, a valve plug 11, a guide rod 12, a guide cylinder 13, a tension spring 14 and a power supply 15.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention does not have the essential significance in the technology, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

As shown in fig. 1 and 2, the utility model provides a hydraulic valve, which comprises a valve body 1, an outer shell 2 is fixedly installed at the upper end of the valve body 1, an inner shell 3 is arranged inside the outer shell 2, a pull rod 4 is arranged at the upper end of the outer shell 2 in a penetrating manner, the bottom of the pull rod 4 extends into the outer shell 2 and is fixedly connected with the top of the inner shell 3, a connecting plate 5 is installed in the outer shell 2 in a sliding manner, the inner shell 3 is fixedly installed on the connecting plate 5, a limiting cylinder 6 is arranged at the bottom of the connecting plate 5, the limiting cylinder 6 penetrates through the bottom of the outer shell 2 and extends into a valve cavity of the valve body 1, a magnetic core 7 is arranged inside the inner shell 3, a coil 31 is arranged on the inner side wall of the inner shell 3 around the magnetic core 7, a valve rod 8 is integrally connected with the bottom of the magnetic core 7, the valve rod, the inclined plane of the opening and closing inclined block 10 is correspondingly matched with the inclined plane of the wedge-shaped heavy block 9, one side of the opening and closing inclined block 10 is abutted to the valve plug 11, the other side of the opening and closing inclined block is connected with a guide rod 12, the guide rod 12 extends into the guide cylinder 13, and the guide rod 12 is connected with the cylinder wall of the guide cylinder 13 through a tension spring 14.

In this embodiment, the outer side of the pull rod 4 is sleeved with a first spring 21, and two ends of the first spring 21 are respectively connected with the outer shell 2 and the inner shell 3. The first spring 21 serves to return the pull rod 4 to the original position more quickly.

In this embodiment, the bottom of the magnetic core 7 is connected to the connecting plate 5 by the second spring 32. The second crossbow 32 serves to return the magnetic core 7 to its original position more quickly.

In this embodiment, the outer side of the valve rod 8 is provided with a protrusion 81, the protrusion 81 moves along with the valve rod 8 in the limiting cylinder 6, and the bottom of the limiting cylinder 6 is provided with a step for supporting the protrusion 81. The step holding projection 81 can drive the valve rod 8 and the inner housing 3 to move integrally in the outer housing 2.

In this embodiment, a power supply 15 is disposed on one side of the outer casing 2, and the coil 31 is electrically connected to the power supply 15. The power supply 15 is used to energize the coil 31.

In this embodiment, a first sealing ring 22 is disposed between the bottom of the outer casing 2 and the limiting cylinder 6. The first sealing ring 22 is used for improving the sealing performance between the outer shell 2 and the limiting cylinder 6.

In this embodiment, a second seal 82 is provided between the outer side of the valve stem 8 and the connecting plate 5. The second seal 82 is used to improve the sealing performance between the valve stem 8 and the connecting plate 5.

In this embodiment, an insulating sleeve 33 is provided between the end of the coil 31 and the inner side wall of the inner housing 3.

As shown in fig. 3 and 4, in a normal state, the coil 31 is not energized, because the wedge-shaped weight 9 is tangent to the opening and closing inclined block 10, and because of the gravity action of the wedge-shaped weight 9, the wedge-shaped weight 9 will press the opening and closing inclined block 10 to move leftward, abut against the valve plug 11, and pull the tension spring 14, at this time, the valve plug 11 is in a closed state; when the valve plug 11 needs to be opened, the coil 31 is electrified through the power supply 15, the valve plug 7 moves upwards under the action of electromagnetic force, the wedge-shaped weight 9 is driven to move upwards through the valve rod 8, the opening and closing inclined block 10 is slowly not extruded any more at the moment, the opening and closing inclined block gradually moves rightwards under the action of the tension spring 14, and the valve plug 11 is also gradually opened; when the circuit broke down, through pulling pull rod 4, made interior casing 3 and the whole upwards moving of spacing section of thick bamboo 6, this in-process, the step of spacing section of thick bamboo 6 bottom can support post lug 81 for magnetic core 7 and valve rod 8 also can shift up along with pull rod 4, have realized opening the purpose of valve plug 11 equally.

To sum up, the utility model discloses a control mode of electronic and manual dual mode combination has effectively solved hydrovalve electric control mode singleness, can influence valve control's problem when the circuit breaks down. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The hydraulic valve is characterized by comprising a valve body (1), wherein an outer shell (2) is fixedly mounted at the upper end of the valve body (1), an inner shell (3) is arranged inside the outer shell (2), a pull rod (4) is arranged at the upper end of the outer shell (2) in a penetrating mode, the bottom of the pull rod (4) stretches into the inner part of the outer shell (2) and the top of the inner shell (3) in a fixed connection mode, a connecting plate (5) is arranged in the outer shell (2) in a sliding mode, the inner shell (3) is fixedly mounted on the connecting plate (5), a limiting barrel (6) is arranged at the bottom of the connecting plate (5), the limiting barrel (6) penetrates through the bottom of the outer shell (2) and stretches out of a valve cavity of the valve body (1), a magnetic core (7) is arranged inside the inner shell (3), and a coil (31) is arranged on the, the bottom an organic whole of magnetic core (7) is connected with valve rod (8), valve rod (8) run through connecting plate (5) and follow the inside of a spacing section of thick bamboo (6) is passed, and its bottom is connected with wedge pouring weight (9) in the valve pocket, the bottom in the valve pocket is equipped with opens and close sloping block (10), open and close the sloping of sloping block (10) with the corresponding cooperation in sloping of wedge pouring weight (9), open and close one side and valve plug (11) butt of sloping block (10), its opposite side is connected with guide bar (12), guide bar (12) stretch into in guide cylinder (13), guide bar (12) are connected with the section of thick bamboo wall of guide cylinder (13) through extension spring (14).

2. A hydraulic valve according to claim 1, wherein: the outside cover of pull rod (4) is equipped with first spring (21), the both ends of first spring (21) are connected with shell body (2) and interior casing (3) respectively.

3. A hydraulic valve according to claim 1, wherein: the bottom of the magnetic core (7) is connected with the connecting plate (5) through a second spring (32).

4. A hydraulic valve according to claim 1, wherein: the outer side of the valve rod (8) is provided with a convex block (81), the convex block (81) moves along with the valve rod (8) in the limiting cylinder (6), and the bottom of the limiting cylinder (6) is provided with a step for supporting the convex block (81).

5. A hydraulic valve according to claim 1, wherein: one side of shell body (2) is equipped with power (15), coil (31) with power (15) electric connection.

6. A hydraulic valve according to claim 1, wherein: a first sealing ring (22) is arranged between the bottom of the outer shell (2) and the limiting cylinder (6).

7. A hydraulic valve according to claim 1, wherein: and a second sealing ring (82) is arranged between the outer side of the valve rod (8) and the connecting plate (5).

8. A hydraulic valve according to claim 1, wherein: an insulating sleeve (33) is arranged between the end part of the coil (31) and the inner side wall of the inner shell (3).