CN216242498U - High-pressure one-way valve - Google Patents

Abstract

The utility model relates to the technical field of high-pressure cleaning machines, in particular to a high-pressure one-way valve. It includes valve body (1), set up intercommunication chamber (2) in valve body (1), be provided with check valve subassembly and setting element (3) in intercommunication chamber (2), just check valve subassembly includes disk seat (4), valve block (5), spring (6) and holder (7) in proper order, disk seat (4) middle part is provided with the through-hole of intercommunication, and disk seat (4) one end offsets with intercommunication chamber (2), and the disk seat (4) other end matches sealedly with valve block (5) one end, and the valve block (5) other end offsets with spring (6) one end, and the spring (6) other end offsets with holder (7) one end, and the holder (7) other end offsets with setting element (3). The high-pressure one-way valve has high reliability and long service life.

Description

High-pressure one-way valve

Technical Field

The utility model relates to the technical field of high-pressure cleaning machines, in particular to a high-pressure one-way valve.

Background

The check valve is an important component of the high-pressure washer. The check valve of prior art mainly includes valve body, O type circle, case, spring and spacer, and O type circle, case, spring and spacer set gradually in the valve body, and the check valve of this kind of structure is under the frequently recoil's of high pressure working condition, and O type circle and spring are because reciprocal compression, cut edge or fracture easily, and the reliability is lower, can make whole life shorter moreover.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the high-pressure one-way valve is high in reliability and long in service life.

The technical scheme adopted by the utility model is as follows: the utility model provides a high-pressure check valve, it includes the valve body, set up the intercommunication chamber in the valve body, be provided with check valve subassembly and setting element in the intercommunication chamber, just check valve subassembly includes disk seat, valve block, spring and holder in proper order, the disk seat middle part is provided with the through-hole of intercommunication, and disk seat one end offsets with the intercommunication chamber, and the disk seat other end matches with valve block one end and seals, and the valve block other end offsets with spring one end, and the spring other end offsets with holder one end, and the holder other end offsets with the setting element.

Preferably, the outer circumference of the valve plate inclines towards the spring direction, and the valve seat is matched with the valve plate in structure.

Preferably, the valve body and the valve plate are both made of metal materials.

Preferably, a sealing ring is further arranged between the valve seat and the valve body.

Preferably, one end of the retainer is abutted against the valve seat, and a cavity for the valve plate to move is formed between the retainer and the valve seat.

Preferably, the retainer is provided with a groove for embedding a part of the spring.

Preferably, the positioning piece is a pressing plate nut, and the pressing plate nut is in threaded connection with the side wall of the communicating cavity.

Compared with the prior art, the utility model has the following advantages by adopting the structure: one-way sealing is realized through the matching between the valve plate and the valve seat, so that the sealing ring is not required to be extruded all the time, and the whole service life is longer.

The outer circumference of valve block adopts to spring slope setting, at first makes both sealed effects better, secondly makes things convenient for liquid to back open the valve block when the import flows in like this more, makes the holistic formation of valve block shorter moreover, and then makes the extruded degree of spring less, also can make the life of spring lengthen like this.

The valve plate and the valve seat are made of metal materials, so that the valve plate and the valve seat can achieve metal contact sealing, and the sealing effect is better.

Set up the sealing washer between disk seat and valve body, can prevent like this that liquid from leaking past between disk seat and the valve body, and then make the whole reliability of check valve higher.

A cavity is formed between the retainer and the valve seat, so that the valve plate can be conveniently moved in the cavity, the opening and closing are realized, the structure is simple, and the effect is better.

Set up a recess that supplies some embedding of spring on the retainer, some embedding of spring will be in this recess like this, and when the valve block pushed down, the valve block can not enter into this recess, and then makes the spring can not excessively be extrudeed for the holistic life of spring is longer.

The pressing plate nut is used as a positioning piece, so that the pressing plate nut can be conveniently screwed in the communicating cavity and can be conveniently adjusted.

Drawings

Fig. 1 is a schematic structural view of the high pressure check valve of the present invention.

As shown in the figure: 1. a valve body; 2. a communicating cavity; 3. a positioning member; 4. a valve seat; 5. a valve plate; 6. a spring; 7. a holder; 8. a groove; 9. and (5) sealing rings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

A high-pressure one-way valve comprises a valve body 1, wherein a communicating cavity 2 is arranged in the valve body 1 and used for communicating two ends of the valve body 1, the communicating cavity 2 comprises two parts, the diameters of the two parts are basically the same, the two parts are communicated through a narrow passage, the upper half part is an inlet cavity, and the lower half part is an outlet cavity;

the upper portion of export chamber has held the check valve subassembly, and the check valve subassembly includes disk seat 4, valve block 5, spring 6 and holder 7, wherein:

the valve seat 4 is contacted and abutted with the upper wall of the outlet cavity, a sealing ring 9 is arranged between the circumference of the upper part of the valve seat 4 and the upper wall of the outlet cavity, the valve seat 4 and the outlet cavity are sealed by the sealing ring 9, a through hole is arranged in the middle of the valve seat 4, the inlet cavity is communicated with the through hole through a narrow channel, and liquid can only flow to the through hole of the valve seat 4 from the inlet cavity through the narrow channel due to the existence of the sealing ring 9;

the upper end of the valve plate 5 is matched and sealed with the valve seat 4, so that the valve plate is in a normal state. The valve plate 5 is propped against the valve seat 4 under the action of the spring 6, namely the through hole of the valve seat 4 is blocked, the outer circumference of the valve plate 5 is inclined downwards, the matching position (namely the periphery of the through hole) of the valve seat 4 and the valve plate 5 is also inclined downwards as the valve plate 5, so that the matching sealing performance between the valve plate 5 and the valve seat 4 is better, the valve seat 4 and the valve plate 5 are both made of metal materials, and metal contact sealing is formed between the valve seat 4 and the valve plate 5;

one end of the spring 6 is abutted against the valve plate 5, and the other end of the spring is abutted against the retainer 7, so that pressure is mainly provided for the valve plate 5, the valve plate 5 can be abutted against the valve seat 4, and the diameter of the spring 6 is smaller than that of the flat part of the valve plate 5, namely, the valve plate 5 comprises a middle flat part and an inclined part of the outer circumference, so that the spring 6 can be completely contacted with the middle flat part of the valve plate 5, and pressure can be well transferred;

the outer circumference of the retainer 7 is provided with a circle of bulges which are abutted against the valve seat 4, so that a cavity can be formed between the retainer 7 and the valve seat 4, the cavity can be used for installing the valve plate 5 and the spring 6 and moving the valve plate 5, the lower part of the retainer 7 is provided with a groove 8 which can be used for embedding and installing the lower part of the spring 6, so that the lower end of the spring 6 can be embedded into the groove 8, and when the valve plate 5 is pressed down by liquid, the spring 6 cannot be completely extruded by the valve plate 5;

the lower part of the one-way valve component is provided with a positioning piece 3 for propping against the one-way valve component, in the embodiment, the positioning piece 3 is a pressing plate nut, the inner wall of the outlet cavity is of a threaded structure, and the pressing plate nut is in threaded connection with the threaded structure, namely the pressing plate nut can be screwed in the outlet cavity for adjustment, so that the function of propping against the one-way valve component can be conveniently realized;

the working principle of the high-pressure one-way valve is as follows: when liquid flows into the inlet, the valve plate 5 can be jacked open and flows through the one-way valve, when no liquid flows into the inlet, the valve plate 5 can reset under the action of the spring 6 to abut against the through hole of the valve seat 4 to realize a sealing function, and when liquid flows into the outlet, the valve plate 5 and the spring 6 can extrude together, so that the valve plate 5 and the valve seat 4 are sealed more tightly, the liquid flowing into the outlet cannot flow through the valve seat 4 to realize one-way flow, and because the existing sealing is sealed by metal contact between the valve plate 5 and the valve seat 4, the sealing ring 9 does not need to be extruded all the time, and the service life can be prolonged; and because the outer circumference of the valve plate 5 is inclined downwards, and the retainer 7 is also provided with a groove 8 for the spring 6 to be embedded, the valve plate 5 extrudes the spring 6 to ensure that the spring 6 is not completely extruded, but a larger elastic space is reserved, so that the spring 6 is not easy to damage, and the whole service life is longer.

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

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the 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.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the utility model. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.

Claims (7)

1. A high-pressure check valve, its characterized in that: it includes valve body (1), set up intercommunication chamber (2) in valve body (1), be provided with check valve subassembly and setting element (3) in intercommunication chamber (2), just check valve subassembly includes disk seat (4), valve block (5), spring (6) and holder (7) in proper order, disk seat (4) middle part is provided with the through-hole of intercommunication, and disk seat (4) one end offsets with intercommunication chamber (2), and the disk seat (4) other end matches sealedly with valve block (5) one end, and the valve block (5) other end offsets with spring (6) one end, and the spring (6) other end offsets with holder (7) one end, and the holder (7) other end offsets with setting element (3).

2. The high pressure check valve of claim 1, wherein: the outer circumference of the valve plate (5) inclines towards the spring (6), and the valve seat (4) is matched with the valve plate (5) in structure.

3. The high pressure check valve of claim 2, wherein: the valve body (1) and the valve plate (5) are both made of metal materials.

4. The high pressure check valve of claim 1, wherein: and a sealing ring (9) is also arranged between the valve seat (4) and the valve body (1).

5. The high pressure check valve of claim 1, wherein: one end of the retainer (7) is also abutted against the valve seat (4), and a cavity for moving the valve plate (5) is formed between the retainer (7) and the valve seat (4).

6. The high pressure check valve of claim 5, wherein: the retainer (7) is provided with a groove (8) for embedding a part of the spring (6).

7. The high pressure check valve of claim 1, wherein: the positioning piece (3) is a pressing plate nut, and the pressing plate nut is in threaded connection with the side wall of the communicating cavity (2).

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