CN213809021U - High-pressure one-way valve - Google Patents

Abstract

The utility model discloses a high-pressure check valve, include valve bonnet, valve block, spring and have a fluid passage's disk seat, valve bonnet fixed connection is on the disk seat, the spring is located the valve bonnet, and the valve block is located between spring and the disk seat, the disk seat is close to the inside sunken cambered surface that forms of one end of valve block, and the valve block is close to the outside outstanding cambered surface matched with contact surface that forms on one end of disk seat with the disk seat be equipped with the ring channel on the contact surface, be equipped with the rubber pad that contacts with the cambered surface in the ring channel, be equipped with the direction foot along internal diameter circumference evenly distributed in the fluid passage of valve block, the tip fixed connection of direction foot is on the valve block. The utility model discloses a check valve is through being provided with guide foot and rubber pad for the valve block can be more stable when doing the motion that opens and shuts, prevent to produce the friction with the valve block valve bonnet, play the effect of antidetonation amortization simultaneously.

Description

High-pressure one-way valve

Technical Field

The utility model relates to a check valve, more specifically say, it relates to a high pressure check valve.

Background

The existing high-pressure one-way valve used in a plunger pump or a cleaning machine has the defects that the stress of a valve plate is uneven in the opening and closing movement process due to various factors such as vibration in the operation process, the valve plate can be abraded with a valve cover, noise can be generated in the opening and closing movement process of the valve plate, and the service life of the one-way valve is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a valve block operation is stable, and the little check valve of noise.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a high-pressure check valve, includes valve bonnet, valve block, spring and has a fluid passage's disk seat, valve bonnet fixed connection is on the disk seat, the spring is located the valve bonnet, and the valve block is located between spring and the disk seat, the disk seat is close to the inside sunken cambered surface that forms of one end of valve block, and the one end that the valve block is close to the disk seat is outside outstanding to form with the cambered surface matched with contact surface on the disk seat be equipped with the ring channel on the contact surface, be equipped with the rubber pad that contacts with the cambered surface in the ring channel, be equipped with the direction foot along internal diameter circumference evenly distributed in the fluid passage of valve block, the tip fixed connection of direction.

The utility model discloses further set up to: and one end of the inner diameter of the rubber pad, which is far away from the valve seat, is provided with a fixed inner ring, and an annular inner groove matched with the fixed inner ring is formed in the inner wall of the annular groove of the valve seat.

The utility model discloses further set up to: the rubber pad and the fixed inner ring are integrally formed.

The utility model discloses further set up to: the number of the guide feet is at least three.

Through adopting above-mentioned technical scheme, this practical check valve is through being provided with guide foot and rubber pad for the valve block can be more stable when doing the motion that opens and shuts, prevent to produce the friction with the valve block valve bonnet, play the effect of antidetonation amortization simultaneously.

Drawings

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

fig. 2 is an exploded view of the present invention;

fig. 3 is an exploded view of the valve plate.

1. A valve housing; 2. a valve plate; 20. a contact surface; 21. an annular groove; 210. an annular inner groove; 22. a guide leg; 3. a spring; 4. a valve seat; 40. a fluid channel; 41. a cambered surface; 5. a rubber pad; 50. and fixing the inner ring.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 3.

The utility model discloses a high-pressure check valve, include valve bonnet 1, valve block 2, spring 3 and have a fluid passage 40 's disk seat 4, 1 fixed connection of valve bonnet is on disk seat 4, spring 3 is located valve bonnet 1, and valve block 2 is located between spring 3 and the disk seat 4, disk seat 4 is close to the inside sunken cambered surface 41 that forms of one end of valve block 2, and the outside outstanding cambered surface 41 matched with contact surface 20 that forms and disk seat 4 of one end that valve block 2 is close to disk seat 4 be equipped with ring channel 21 on the contact surface 20, be equipped with the rubber pad 5 that contacts with cambered surface 41 in the ring channel 21, be equipped with in the fluid passage 40 of valve block 2 along internal diameter circumference evenly distributed's guide foot 22, the tip fixed connection of guide foot 22 is on valve block 2. The end of the inner diameter of the rubber pad 5 far away from the valve seat 4 is provided with a fixed inner ring 50, and an annular inner groove 210 matched with the fixed inner ring 50 is arranged on the inner wall of the annular groove 21 of the valve seat 4. The rubber pad 5 and the fixed inner ring 50 are integrally formed. The number of the guide feet 22 is at least three.

The working principle is as follows: the utility model discloses a check valve is when valve block 2 is the motion of opening and shutting, through be equipped with rubber pad 5 on valve block 2 for when valve block 2 was laminated on the fluid passage 40 of motion to disk seat 4, the last rubber pad 5 that sets up of valve block 2 can form the buffering shock attenuation with cambered surface 41 on the disk seat 4, has also promoted the leakproofness when the noise reduction. Simultaneously in order to prevent that valve block 2 from wearing and tearing to valve bonnet 1 when doing the motion of opening and shutting, set up a plurality of guide feet 22 on valve block 2 for valve block 2 can carry out the steady motion through guide feet 22 when doing the motion of opening and shutting, thereby be difficult to produce and rock and play the friction damage between 1 with the valve bonnet. The utility model discloses a check valve is through being provided with guide foot 22 and rubber pad 5 for valve block 2 can be more stable when doing the motion that opens and shuts, prevent to produce the friction with valve block 2 valve bonnet 1, play the effect of antidetonation amortization simultaneously.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (4)

1. The utility model provides a high-pressure check valve, includes valve bonnet, valve block, spring and has a fluid passage's disk seat, valve bonnet fixed connection is on the disk seat, the spring is located the valve bonnet, and the valve block is located between spring and the disk seat, its characterized in that: the valve seat is characterized in that one end, close to the valve block, of the valve seat is inwards recessed to form an arc surface, one end, close to the valve seat, of the valve block is outwards protruded to form a contact surface matched with the arc surface on the valve seat, an annular groove is formed in the contact surface, a rubber pad in contact with the arc surface is arranged in the annular groove, guide pins which are uniformly distributed along the inner diameter circumference are arranged in a fluid channel of the valve block, and the end portions of the guide pins are fixedly connected to the valve block.

2. A high pressure one way valve as claimed in claim 1, wherein: and one end of the inner diameter of the rubber pad, which is far away from the valve seat, is provided with a fixed inner ring, and an annular inner groove matched with the fixed inner ring is formed in the inner wall of the annular groove of the valve seat.

3. A high pressure check valve as claimed in claim 2, wherein: the rubber pad and the fixed inner ring are integrally formed.

4. A high pressure one way valve as claimed in claim 1, wherein: the number of the guide feet is at least three.

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