CN210034430U

CN210034430U - High-pressure-maintaining-performance hydraulic pressure maintaining valve

Info

Publication number: CN210034430U
Application number: CN201920898266.0U
Authority: CN
Inventors: 田伟
Original assignee: Fuyang Xinda Hydraulic Machinery Co Ltd
Current assignee: Fuyang Xinda Hydraulic Machinery Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-02-07
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a high pressurize performance hydraulic pressure retaining valve relates to gas cylinder valve technical field, including the valve body, fixedly connected with thread bush in the middle of the top of valve body, the middle part swing joint of thread bush has the screw rod, and nut and hand wheel fixed connection are passed through to the one end of screw rod, and one side of thread bush is provided with the spout, spout and valve body fixed connection, and one side of spout is provided with the sealing washer, sealing washer and valve body fixed connection, the middle part fixed surface of screw rod is connected with the stopper, the other end fixedly connected with ejector pin of screw rod, the bottom fixedly connected with drum of valve body. This high pressurize performance hydraulic pressure retaining valve, thread bush can make the screw rod remove, and the hand wheel can make the screw rod rotate, and the screw rod of being convenient for removes, and the removal range of screw rod can be restricted in the cooperation of spout and stopper, prevents that user's random dismantlement and assembly from causing the phenomenon of gas leakage, and the sealing washer can seal the inside of valve body, prevents that the valve body gas from leaking out when using.

Description

High-pressure-maintaining-performance hydraulic pressure maintaining valve

Technical Field

The utility model relates to a gas cylinder valve technical field specifically is a high pressurize performance hydraulic pressure retaining valve.

Background

The gas cylinder valve is a valve which is arranged on a gas cylinder and is used for controlling the on-off and flow of gas. Also known as a cylinder valve. The gas cylinders with different media generally use gas cylinder valves with different structures. The common characteristics of the two are that the operation is manual, the structure is simple, the size is small, the strength is high, the working temperature is-40-60 ℃, the material can meet the physical and chemical property requirements of the medium, the medium is made of common copper, and some safety relief devices are arranged, such as a tensile or shearing type rupture disk and a safety plug made of fusible alloy. The cylinder valve is divided into a flap type, a shaft coupling type, a needle type, a rubber coupling type, a diaphragm type and the like according to the structure. Their operating ranges refer to the pressure range for compressed gas and the temperature range for liquefied gas.

At present, the whole valve body can be detached from the cylinder valve at will by the common liquefied petroleum gas cylinder valve at present, and due to the detachable property, a household user usually detaches the cylinder valve at will for clearing away residues in the cylinder, so that a sealing part is easy to be installed in the detaching process, a sealing part is damaged in the detaching process, or the mounting is not in place, and the like, so that the cylinder valve supplies gas to work under the state of being separated from the original design, and gas leakage is caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a high pressurize performance hydraulic pressure retaining valve has solved current gas cylinder valve and has dismantled the problem that causes the gas to leak easily.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a high pressurize performance hydraulic pressure retaining valve, includes the valve body, fixedly connected with thread bush in the middle of the top of valve body, thread bush's middle part swing joint has the screw rod, nut and hand wheel fixed connection are passed through to the one end of screw rod, one side of thread bush is provided with the spout, spout and valve body fixed connection, one side of spout is provided with the sealing washer, sealing washer and valve body fixed connection, the middle part fixed surface of screw rod is connected with the stopper, the other end fixedly connected with ejector pin of screw rod, the bottom fixedly connected with drum of valve body, the one end fixedly connected with intake pipe of drum, the fixed cover of inner chamber top fixedly connected with of intake pipe, one side fixedly connected with connecting pipe of drum, the one end fixedly connected with outlet duct of connecting pipe.

Optionally, the inside of spout is provided with the stopper, the surface of stopper and the inner wall swing joint of spout, one side of spout is circular-arc.

Optionally, a groove is formed in the inner wall of the valve body, a sealing ring is arranged inside the groove, the outer side of the sealing ring is fixedly connected with the inner wall of the groove, and the sealing ring is an elastic sealing ring.

Optionally, an air outlet is formed in one end of the ejector rod, a notch is formed in one side of the fixing sleeve, and the fixing sleeve is movably connected with the ejector rod.

Optionally, the other end of the screw rod penetrates through the valve body and is located in the inner cavity of the cylinder to be fixedly connected with the ejector rod, and the inner side of the sealing ring is movably connected with the surface of the screw rod.

Optionally, the surface of the hand wheel is provided with anti-skid convex points, and the anti-skid convex points are fixedly connected with the surface of the hand wheel.

(III) advantageous effects

The utility model provides a high pressurize performance hydraulic pressure retaining valve possesses following beneficial effect:

(1) this high pressurize performance hydraulic pressure retaining valve can make the screw rod remove through the thread bush, can make the screw rod rotate through the hand wheel, and the screw rod of being convenient for removes, and the removal scope of screw rod can be restricted through the cooperation of spout and stopper, prevents that user's random dismantlement and assembly from causing the phenomenon of gas leakage, can seal the inside of valve body through the sealing washer, prevents that the valve body gas from leaking out when using.

(2) This high pressurize performance hydraulic pressure retaining valve can control opening or closing of intake pipe through the cooperation of ejector pin with fixed cover, can be convenient for gas through the intake pipe and enter into the valve body in, can be convenient for the gaseous outflow in the valve body through the outlet duct, can make the gaseous outflow of intake pipe through the cooperation of gas outlet and notch.

Drawings

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

FIG. 2 is a schematic sectional view of the structure of the present invention;

fig. 3 is a schematic side view and sectional view of the structure of the present invention.

In the figure: the valve comprises a valve body 1, a threaded sleeve 2, a screw rod 3, a hand wheel 4, a sliding groove 5, a sealing ring 6, a limiting block 7, a mandril 8, a cylinder 9, an air inlet pipe 10, a fixed sleeve 11, a connecting pipe 12, an air outlet pipe 13, an air outlet 14 and a notch 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a hydraulic pressure retaining valve with high pressure retaining performance comprises a valve body 1, a threaded sleeve 2 is fixedly connected in the middle of the top of the valve body 1, the threaded sleeve 2 can enable a screw rod 3 to move, the middle of the threaded sleeve 2 is movably connected with the screw rod 3, one end of the screw rod 3 is fixedly connected with a hand wheel 4 through a nut, the hand wheel 4 can enable the screw rod 3 to rotate, the screw rod 3 can move conveniently, a sliding groove 5 is arranged on one side of the threaded sleeve 2, the sliding groove 5 is fixedly connected with the valve body 1, a sealing ring 6 is arranged on one side of the sliding groove 5, the sealing ring 6 can seal the interior of the valve body 1 to prevent gas leakage when the valve body 1 is used, the sealing ring 6 is fixedly connected with the valve body 1, a limiting block 7 is fixedly connected to the surface of the middle of the screw rod 3, the moving range of the screw rod 3 can be limited by the matching of the sliding groove, ejector pin 8 can be controlled opening or closing of intake pipe 10 with the cooperation of fixed cover 11, the bottom fixedly connected with drum 9 of valve body 1, the one end fixedly connected with intake pipe 10 of drum 9, intake pipe 10 can be convenient for in gaseous entering into valve body 1, the fixed cover 11 of inner chamber top fixedly connected with of intake pipe 10, one side fixedly connected with connecting pipe 12 of drum 9, the one end fixedly connected with outlet duct 13 of connecting pipe 12, the gaseous outflow in the valve body 1 of can being convenient for of outlet duct 13.

As an optional technical solution of the utility model: the inside of spout 5 is provided with stopper 7, and the surface of stopper 7 and the inner wall swing joint of spout 5, one side of spout 5 are circular-arcly, and the moving range of screw rod 3 can be restricted in the cooperation of spout 5 and stopper 7.

As an optional technical solution of the utility model: the inner wall of valve body 1 has seted up the recess, and the inside of recess is provided with sealing washer 6, and the outside of sealing washer 6 and the inner wall fixed connection of recess, sealing washer 6 are elastic seal circle, and sealing washer 6 can seal the inside of valve body 1, prevents that the gas from leaking when using of valve body 1.

As an optional technical solution of the utility model: gas outlet 14 has been seted up to ejector pin 8's one end, and notch 15 has been seted up to one side of fixed cover 11, and fixed cover 11 and ejector pin 8 swing joint, the cooperation of gas outlet 14 and notch 15 can make the gaseous outflow of intake pipe 10.

As an optional technical solution of the utility model: the other end of the screw 3 penetrates through the valve body 1 and is positioned in the inner cavity of the cylinder 9 to be fixedly connected with the ejector rod 8, the inner side of the sealing ring 6 is movably connected with the surface of the screw 3, and the cylinder 9 can facilitate the connection between the ejector rod 8 and the fixed sleeve 11.

As an optional technical solution of the utility model: the surface of the hand wheel 4 is provided with anti-skidding convex points which are fixedly connected with the surface of the hand wheel 4, and the anti-skidding convex points can prevent the hand wheel 4 from skidding in the using process.

To sum up, this high pressurize performance hydraulic pressure retaining valve, the gas cylinder valve is when using, rotate hand wheel 4, hand wheel 4 drives screw rod 3 rebound, screw rod 3 drives stopper 7 and removes in spout 5, screw rod 3 moves ejector pin 8 and removes simultaneously, ejector pin 8 removes and fixes cover 11 and slowly separates, make gas in the intake pipe 10 enter into valve body 1 from gas outlet 14, the gas in the valve body 1 flows out through gas outlet 14 afterwards, when the unusual gas cylinder valve of opening reaches maximum height, stopper 7 on the screw rod 3 reaches the top of spout 5, spout 5 can exert certain pretightning force to making stopper 7, make stopper 7 can not rebound once more, thereby the possibility of the random dismantlement of the internals of valve body 1 has been prevented.

It is noted that in the present disclosure, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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 utility model provides a high pressurize performance hydraulic pressure retaining valve, includes valve body (1), its characterized in that: the improved valve is characterized in that a threaded sleeve (2) is fixedly connected in the middle of the top of the valve body (1), a screw rod (3) is movably connected in the middle of the threaded sleeve (2), one end of the screw rod (3) is fixedly connected with a hand wheel (4) through a nut, a sliding groove (5) is arranged on one side of the threaded sleeve (2), the sliding groove (5) is fixedly connected with the valve body (1), a sealing ring (6) is arranged on one side of the sliding groove (5), the sealing ring (6) is fixedly connected with the valve body (1), a limiting block (7) is fixedly connected on the surface of the middle of the screw rod (3), an ejector rod (8) is fixedly connected with the other end of the screw rod (3), a cylinder (9) is fixedly connected with the bottom of the valve body (1), an air inlet pipe (10) is fixedly connected with one end of the cylinder, one side of the cylinder (9) is fixedly connected with a connecting pipe (12), and one end of the connecting pipe (12) is fixedly connected with an air outlet pipe (13).

2. The high holding pressure performance hydraulic pressure retaining valve according to claim 1, characterized in that: the inside of spout (5) is provided with stopper (7), the surface of stopper (7) and the inner wall swing joint of spout (5), one side of spout (5) is circular-arc.

3. The high holding pressure performance hydraulic pressure retaining valve according to claim 1, characterized in that: the inner wall of the valve body (1) is provided with a groove, a sealing ring (6) is arranged in the groove, the outer side of the sealing ring (6) is fixedly connected with the inner wall of the groove, and the sealing ring (6) is an elastic sealing ring.

4. The high holding pressure performance hydraulic pressure retaining valve according to claim 1, characterized in that: the gas outlet (14) is opened to the one end of ejector pin (8), notch (15) is opened to one side of fixed cover (11), fixed cover (11) and ejector pin (8) swing joint.

5. The high holding pressure performance hydraulic pressure retaining valve according to claim 1, characterized in that: the other end of the screw rod (3) penetrates through the valve body (1) and is positioned in the inner cavity of the cylinder (9) to be fixedly connected with the ejector rod (8), and the inner side of the sealing ring (6) is movably connected with the surface of the screw rod (3).

6. The high holding pressure performance hydraulic pressure retaining valve according to claim 1, characterized in that: and anti-skid convex points are arranged on the surface of the hand wheel (4), and are fixedly connected with the surface of the hand wheel (4).