CN220470736U - Novel high-pressure overflow valve - Google Patents

Abstract

The utility model discloses a novel high-pressure overflow valve, which comprises a valve body, wherein the bottom of the valve body is in threaded connection with an end joint, the bottom of one side of the valve body is provided with a medium inlet, and the inside of the end joint is provided with a medium outlet; the top of the inside of the valve body is provided with a spring seat, the top thread bush on the outer side of the valve body is provided with a second locking nut, and the top of the spring seat is provided with a second spring; the utility model is different from the low-inlet high-outlet of the conventional overflow valve, and the induced pressure comes from the bottom; the structure is not as accurate as the structure, and the structure controls the opening pressure by pressing the diameter area of the valve rod, so that the accuracy is higher; the conventional overflow valve has small size and limited pressure range, and is commonly used for low pressure; the conventional high-pressure type is oversized and occupies a very large volume; the structure has moderate size and can be used for medium pressure and high pressure; the materials can be designed by adopting better and stronger materials; therefore, the product has the effects of high pressure resistance, scouring resistance and long service life.

Description

Novel high-pressure overflow valve

Technical Field

The utility model relates to the technical field of overflow valves, in particular to a novel high-pressure overflow valve.

Background

The overflow valve is a key safety application guarantee for guaranteeing a pressure pipeline and a pressure container, and is also called as an overflow valve; is a key safety application guarantee for guaranteeing the pressure pipeline and the pressure container; the high pressure relief valve is commonly used to prevent an abnormal rise in pressure in the hydraulic control circuit, and when the operating pressure in the control circuit increases beyond a predetermined pressure set point, it will drain through the relief port of the relief valve;

the conventional method is that the pressure is lower, higher and higher, and the sensing pressure comes from the bottom; such a structure is very poor in accuracy; the conventional overflow valve has small size and limited pressure range, and is commonly used for low pressure; the conventional high-pressure type is too large, the occupied volume is very large, and the application range is limited.

Disclosure of Invention

The utility model aims to provide a novel high-pressure overflow valve so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the novel high-pressure overflow valve comprises a valve body, wherein the bottom of the valve body is in threaded connection with an end joint, a medium inlet is formed in the bottom of one side of the valve body, and a medium outlet is formed in the end joint;

the top of the inside of the valve body is provided with a spring seat, the top thread sleeve on the outer side of the valve body is provided with a second locking nut, the top of the spring seat is provided with a second spring, the inside thread of the second locking nut is connected with a valve cap, and the top of the second spring is connected with the inside of the valve cap;

a valve core component is arranged in the middle of the interior of the valve body;

the valve core assembly comprises a valve core, a first lock nut, a first spring and a valve rod, wherein the valve rod is located at the center position inside the valve body, the first lock nut is sleeved on the bottom thread on the outer side of the valve rod, the first spring is arranged on the top inside the valve rod, the valve core extending to the outer portion of the valve rod is arranged at the bottom of the first spring, and the valve core is matched with the top opening of the end connector.

Preferably, the top in the valve rod outside has seted up annular notch, and the inside cover of annular notch is equipped with first O type circle, plays good sealed effect.

Preferably, the bottom of spring holder is seted up flutedly, and recess and the top looks adaptation of valve rod, and the spring holder is used for supporting the valve rod to accessible swivel bonnet sets for the pressure of overflow valve.

Preferably, the top of spring holder is equipped with the bellying, and bellying and the internal diameter adaptation of second spring, and the bellying is used for spacing the second spring.

Preferably, the annular sealing groove is arranged at the top of the outer side of the end connector, and the second O-shaped ring is sleeved in the annular sealing groove, so that the sealing effect is improved, and medium leakage is prevented.

Preferably, the bottom of case is the taper, and the bottom of case cooperatees with the overflow row mouth at end joint top for open and shut it, and then control the transmission of medium, the taper laminating leakproofness is stronger.

Compared with the prior art, the utility model has the beneficial effects that: the novel high-pressure overflow valve is different from a conventional overflow valve in that the low inlet and the high outlet are different, and the sensing pressure is from the bottom; the structure is not as accurate as the structure, and the structure controls the opening pressure by pressing the diameter area of the valve rod, so that the accuracy is higher; the conventional overflow valve has small size and limited pressure range, and is commonly used for low pressure; the conventional high-pressure type is oversized and occupies a very large volume; the structure has moderate size and can be used for medium pressure and high pressure; the materials can be designed by adopting better and stronger materials; therefore, the product has the effects of high pressure resistance, scouring resistance and long service life.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a valve core assembly according to the present utility model;

FIG. 3 is a schematic view of a media inlet and outlet according to the present utility model.

In the figure: 1. a valve core; 2. a first lock nut; 3. a first spring; 4. a spring seat; 5. a second lock nut; 6. a second spring; 7. a valve cap; 8. a valve stem; 9. a first O-ring; 10. a second O-ring; 11. a valve body; 12. and an end connector.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, embodiments of the present utility model are provided: the novel high-pressure overflow valve comprises a valve body 11, wherein the bottom of the valve body 11 is in threaded connection with an end joint 12, an annular sealing groove is formed in the top of the outer side of the end joint 12, a second O-shaped ring 10 is sleeved in the annular sealing groove, the sealing effect is improved, a medium inlet is formed in the bottom of one side of the valve body 11, and a medium outlet is formed in the end joint 12;

the top of the inside of the valve body 11 is provided with a spring seat 4, the top thread bush on the outer side of the valve body 11 is provided with a second lock nut 5, the top of the spring seat 4 is provided with a second spring 6, the inside thread of the second lock nut 5 is connected with a valve cap 7, the valve cap 7 is used for adjusting the pressure of the second spring 6, the factory is generally set to be the safety pressure of overflow required by customers, and the force of the second spring balances the pressure of an inlet medium in a certain stroke state; the top of the second spring 6 is connected with the inside of the valve cap 7, a groove is formed in the bottom of the spring seat 4, the groove is matched with the top of the valve rod 8, and the spring seat 4 is used for propping against the valve rod 8, so that the pressure of the overflow valve can be set by rotating the valve cap 7; the top of the spring seat 4 is provided with a protruding part, the protruding part is matched with the inner diameter of the second spring 6, and the protruding part is used for limiting the second spring 6; the top of the outer side of the valve rod 8 is provided with an annular notch, and the inner part of the annular notch is sleeved with a first O-shaped ring 9, so that a good sealing effect is achieved;

the middle part of the interior of the valve body 11 is provided with a valve core component;

the valve core assembly comprises a valve core 1, a first lock nut 2, a first spring 3 and a valve rod 8, wherein the valve rod 8 is positioned at the central position inside a valve body 11, the first lock nut 2 is sleeved on the bottom thread outside the valve rod 8, the first spring 3 is arranged at the top inside the valve rod 8, the valve core 1 extending to the outside of the valve rod 8 is arranged at the bottom of the first spring 3, and the valve core 1 is matched with the top opening of an end joint 12; the bottom of case 1 is the taper, and the bottom of case 1 cooperatees with the overflow row mouth at termination 12 top for open and shut it, and then control the transmission of medium, and taper laminating leakproofness is stronger.

Working principle: high pressure relief valves are most commonly used to prevent an abnormal rise in pressure in a hydraulic control circuit, which will vent through the relief port of the relief valve when the operating pressure in the control circuit increases beyond a predetermined pressure set point.

Rotating the bonnet 7 clockwise will increase the relief valve pressure set point whereas rotating the bonnet 7 counterclockwise will decrease the relief valve pressure set point, once set to the desired relief set pressure, the second lock nut 5 should be tightened onto the bonnet 7 to maintain a fixed pressure value setting;

the elastic force of the first spring 3 acts on the valve core 1, and the first spring 3 props against the valve core 1, so that the valve core 1 is in fit with the sealing surface of the end joint 12, and the valve is in a sealed state;

when the inlet pressure is higher than the set pressure of the first spring 3, the medium pushes the valve core assembly upwards, and at the moment, the first lock nut 2 in the valve core assembly pulls the valve core 1 away from the end connector 12, so that the medium is transferred from the inlet to the outlet for pressure relief;

when the medium pressure is lower than the set pressure, the valve core 1 is lowered under the action of the first spring 3 and presses against the sealing surface of the end fitting 12, so that a sealing state is established, and the system pressure is kept within a safe pressure range.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected" and "connected" are to be construed broadly, and may be either a fixed connection or a removable connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims (6)

1. The utility model provides a novel high-pressure overflow valve, includes valve body (11), its characterized in that: the bottom of the valve body (11) is in threaded connection with an end connector (12), a medium inlet is formed in the bottom of one side of the valve body (11), and a medium outlet is formed in the end connector (12);

the top of the inside of the valve body (11) is provided with a spring seat (4), the top thread sleeve on the outer side of the valve body (11) is provided with a second lock nut (5), the top of the spring seat (4) is provided with a second spring (6), the inside thread of the second lock nut (5) is connected with a valve cap (7), and the top of the second spring (6) is connected with the inside of the valve cap (7);

a valve core component is arranged in the middle of the interior of the valve body (11);

the valve core assembly comprises a valve core (1), a first lock nut (2), a first spring (3) and a valve rod (8), wherein the valve rod (8) is located at the center position inside a valve body (11), the first lock nut (2) is sleeved on the bottom of the outer side of the valve rod (8), the first spring (3) is arranged at the top of the inner side of the valve rod (8), the valve core (1) extending to the outer side of the valve rod (8) is arranged at the bottom of the first spring (3), and the valve core (1) is matched with the top opening of an end connector (12).

2. The novel high-pressure relief valve according to claim 1, wherein: the top in valve rod (8) outside has seted up annular notch, and the inside cover of annular notch is equipped with first O type circle (9).

3. The novel high-pressure relief valve according to claim 1, wherein: the bottom of spring holder (4) is seted up flutedly, and recess and the top looks adaptation of valve rod (8).

4. The novel high-pressure relief valve according to claim 1, wherein: the top of the spring seat (4) is provided with a protruding part, and the protruding part is matched with the inner diameter of the second spring (6).

5. The novel high-pressure relief valve according to claim 1, wherein: the top of the outer side of the end connector (12) is provided with an annular sealing groove, and the interior of the annular sealing groove is sleeved with a second O-shaped ring (10).

6. The novel high-pressure relief valve according to claim 1, wherein: the bottom of the valve core (1) is conical.