CN216867611U - One-way valve - Google Patents

Abstract

The application relates to the technical field of fluid delivery, and discloses a one-way valve which comprises a valve body, a valve core and a slide shaft, wherein the valve body is provided with a limiting piece and a valve seat; the valve core is arranged in the valve body; the first end of the slide way shaft is arranged on the limiting piece, and the second end of the slide way shaft is arranged on the valve seat; the valve core is connected to the slide shaft in a sliding mode and moves on the slide shaft through the valve core to open or close the valve port of the valve seat. Through being provided with the slide axle, the case can slide at the slide axle, and the lateral wall of case can not use with the inside wall cooperation of valve body, and the top of case can open or close the valve port can, reduced the cooperation degree of difficulty of the inside wall of case and valve body to a certain extent.

Description

One-way valve

Technical Field

The present application relates to the field of fluid delivery technology, for example, to a one-way valve.

Background

The check valve is also called a check valve, and in a refrigeration system, the check valve only allows the refrigerant to flow in a single direction, so that the backflow of refrigerant gas or liquid can be effectively prevented. The valve core and the inner side wall of the valve body of the traditional check valve are tightly matched, so that the valve core does not deviate when one end of the valve core moves towards the valve port, and therefore, the size requirements on the valve core and the inner side wall of the valve body are strict for meeting the conduction and the cut-off of a check valve channel.

The prior art discloses a check valve, which comprises a valve body with a fluid inlet and a fluid outlet, a valve seat fixed in an inner cavity of the valve body and provided with a valve port, a valve core component arranged in the inner cavity and used for opening or closing the valve port, and a limiting component arranged in the inner cavity and used for limiting the axial sliding stroke of the valve core component.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the valve core in the existing one-way valve needs strict matching requirements with the valve seat and the inner side wall of the valve body, and further the manufacturing difficulty of the valve core is increased.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a check valve, no longer carries out strict installation requirement limit to the size of case, disk seat and valve body inside wall, only need the case plug up the valve port can, reduced the processing degree of difficulty of case, also saved a large amount of case consumptive materials.

In some embodiments, a check valve includes a valve body, a valve core, and a slide shaft, wherein the valve body has a retainer and a valve seat; the valve core is arranged in the valve body; the first end of the slide way shaft is arranged on the limiting piece, and the second end of the slide way shaft is arranged on the valve seat; the valve core is connected on the slideway shaft in a sliding way, and moves on the slideway shaft through the valve core so as to open or close the valve port of the valve seat.

In some embodiments, the valve seat further comprises: and the fixed extension plate is arranged on the valve port, and the second end of the slide shaft is arranged on the fixed extension plate.

In some embodiments, the slideway shaft comprises a stiff wire.

In some embodiments, the first end of the slide shaft is disposed at the central axis of the retainer, and the second end of the slide shaft is disposed at the central axis of the valve seat.

In some embodiments, the valve port comprises: and the sealing blocking piece is arranged on the fixed extension plate of the valve seat.

In some embodiments, the sealing flap is located on one side of the valve core, and the second end of the slide shaft is disposed on the sealing flap.

In some embodiments, the valve cartridge comprises: the plugging part comprises a plug with a conical structure; the sliding part is connected with the slideway shaft in a sliding way.

In some embodiments, the valve cartridge further comprises: the sealing groove is arranged on the plugging part; when the plugging part plugs the valve port, the sealing groove can be matched and sealed with the sealing blocking piece.

In some embodiments, the valve cartridge further comprises: and the shaft hole penetrates through the valve core body and is in sliding connection with the slide way shaft.

In some embodiments, the spool is in clearance with the inner sidewall of the valve body.

The one-way valve provided by the embodiment of the disclosure can realize the following technical effects:

through being provided with the slide axle, the case can slide at the slide axle, and the lateral wall of case can not use with the inside wall cooperation of valve body, and the top of case can open or close the valve port can, has reduced the cooperation degree of difficulty of the inside wall of case and valve body to a certain extent.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic view of a prior art check valve;

FIG. 2 is a schematic structural diagram of a check valve provided by an embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a valve cartridge provided by an embodiment of the present disclosure in use with a slide shaft;

FIG. 4 is a schematic structural diagram of a valve plug blocking a valve port according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a valve core opening a valve port provided by the embodiment of the disclosure.

Reference numerals:

10: a valve body; 101: a limiting member; 102: a valve seat; 103: a valve port; 104: sealing the baffle plate;

20: a valve core; 201: a plugging section; 202: a sliding part; 203: sealing the groove;

30: a slideway shaft.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

In the refrigerating system, the check valve only allows the refrigerant to flow in one direction, and is installed in the pipeline to prevent the backflow of the refrigerant gas or liquid.

The valve element 20 of the conventional check valve moves along the inner side wall of the valve body 10 to ensure that the position of the valve element 20 does not deviate, and the top of the valve element 20 is matched with the valve port 103 on the valve seat 102, as shown in fig. 1, so that the requirements of opening and closing a channel in the check valve can be met.

However, the structural arrangement of the check valve described above makes the dimensional requirements of the valve body 20 and the inner wall of the valve body 10 relatively strict. If the inner side wall of the valve body 10 has a certain size, the size of the valve core 20 needs to be set, and if the valve core 20 is too large or too small, and is put into the inner cavity of the valve body 10, there may be various moving situations of the valve core 20.

If the valve core 20 is excessively large, it is not easy to fit the valve core 20 into the inner cavity of the valve body 10 when assembling the check valve. Even if the valve core 20 is assembled, the size of the inner sidewall of the valve body 10 does not match the size of the valve core 20 during use. When fluid flows from the valve port 103 side to the stopper 101 side, the valve element 20 is not easily detached from the valve port 103; on the other hand, when the fluid flows from the stopper 101 side to the valve port 103 side, it is not easy to cause the valve body 20 to close the valve port 103.

If the valve core 20 is too small in size, it is easy to fit the valve core 20 into the inner cavity of the valve body 10 when assembling the check valve. The valve core 20 is assembled, and in the use process, the size of the inner side wall of the valve body 10 is larger than that of the valve core 20. When the fluid flows from the valve port 103 side to the stopper 101 side, the valve element 20 is easily detached from the valve port 103, but the valve element 20 may collide with the inner wall of the valve body 10 and damage the inner wall. Therefore, no matter the size of the valve core 20 is too large or too small, the use of the check valve is affected, and the processing difficulty of the valve core 20 is increased.

Referring to fig. 2, the disclosed embodiment provides a check valve, which includes a valve body 10, a valve core 20, and a slide shaft 30, wherein the valve body 10 has a limiting member 101 and a valve seat 102; a valve core 20 disposed in the valve body 10; a first end of the slide shaft 30 is arranged on the limiting member 101, and a second end is arranged on the valve seat 102; the valve core 20 is slidably connected to the slide shaft 30, and is moved on the slide shaft 30 by the valve core 20 to open or close the valve port 103 of the valve seat 102.

By adopting the one-way valve provided by the embodiment of the disclosure, the valve core can slide on the slide shaft through the arrangement of the slide shaft, the side wall of the valve core can not be matched with the inner side wall of the valve body for use, and the top of the valve core can open or close the valve port, so that the matching difficulty of the valve core and the inner side wall of the valve body is reduced to a certain extent.

In this embodiment, the check valve includes a tubular valve body 10, a cylindrical cavity inside the valve body 10, a limiting member 101 and a valve seat 102, where the valve seat 102 is disposed in the cavity of the valve body 10, and the limiting member 101 is disposed in the cavity of the valve body 10, so that the valve seat 102 and the limiting member 101 form a limiting space. The valve core 20 is arranged in the limit space. A valve port 103 is provided in the valve seat 102 for fluid inflow.

Alternatively, when fluid flows in from the side of the stopper 101, the fluid pushes the valve element 20, so that the valve element 20 can be inserted into the valve port 103 of the valve seat 102, the fluid cannot flow through the valve port, and a channel of the check valve is closed.

Alternatively, when fluid flows in from one side of the valve seat 102, the fluid pushes the valve element 20, so that the fluid can flow in from the valve port 103 of the valve seat 102, and the fluid pushes the valve element 20, so that the fluid can flow and open the channel of the check valve.

In the embodiment, when the valve element 20 of the check valve is acted by fluid and moves toward the limiting member 101, the valve element is susceptible to multiple influences of fluid flow and gravity, and when the size of the valve element 20 is small, the valve element 20 may collide with the wall surface of the cavity in the cavity of the check valve, thereby generating collision noise.

In order to prevent the valve core 20 from colliding with the wall surface of the cavity and generating collision sound, and also reduce the matching relationship between the valve core 20 and the wall surface of the cavity, therefore, the slide shaft 30 is provided, the valve core 20 can slide on the slide shaft 30, the side wall of the valve core can not be matched with the inner side wall of the valve body for use, and can not collide with the wall surface of the cavity.

In this embodiment, a first end of the slide shaft 30 is disposed on the limiting member 101, and a second end of the slide shaft 30 is disposed on the valve seat 102; that is, the slide shaft 30 is disposed in a limit space formed by the valve seat 102 and the stopper 101, wherein the valve element 20 is slidably connected to the slide shaft 30, and the valve port 103 of the valve seat 102 can be opened or closed by moving the valve element 20 on the slide shaft 30.

Optionally, the first end of the slide shaft 30 is disposed on the left side of the central position of the limiting member 101, and the second end of the slide shaft 30 is disposed on the left side of the central position of the valve seat 102. Thus, the spool shaft 30 is a straight spool and the spool 20 is slidably attached to the straight spool such that the spool 20 is no longer limited by the size of the cavity of the valve body 10. The valve port 103 of the valve seat 102 can be opened or closed.

In the present embodiment, the installation position and the installation mode of the spool shaft 30 are related to the installation position of the valve body 20 and the mode of the valve port 103 in which the valve body 20 is opened or closed.

In some embodiments, the valve seat 102 further comprises: and the fixed extension plate is arranged on the valve port 103, and the second end of the slide shaft 30 is arranged on the fixed extension plate. Facilitating movement of the valve cartridge 20.

In the present embodiment, a stopper 101 and a valve seat 102 are provided in the valve body 10, and the valve element 20 is provided between the stopper 101 and the valve seat 102. The valve seat 102 is provided with a valve port 103 through which fluid passes, and further comprises a slide shaft 30, a first end of the slide shaft 30 is arranged on the limiting member 101, a second end of the slide shaft 30 is arranged on the valve seat 102, and the middle structure of the limiting member 101 can be directly connected with the first end of the slide shaft 30. However, since the valve seat 102 is further provided with the valve port 103, and the valve port 103 is usually provided at a central position of the valve seat 102, a fixed extension plate is further provided at the valve port 103 in order to facilitate movement of the valve body 20.

Optionally, the valve port 103 is configured to communicate with liquid through a fixed extension plate, the fixed extension plate is a long flat plate, and two ends of the fixed extension plate are fixedly connected to the inner side of the valve port 103. Thus, the two sides of the valve port 103 are in a circulating structure, and the long flat plate does not seal the aperture of the valve port 103.

Optionally, in order to facilitate the installation of the slide shaft 30, a shaft hole for fixing the second end of the slide shaft 30 of the fixed slide shaft 30 is provided on the fixed extension plate.

The valve core 20 can move on the slide shaft 30, and in order to ensure the service life of the slide shaft 30, the slide shaft 30 can be made of hard metal material.

In some embodiments, the runway shaft 30 comprises a hard wire. The service life of the slideway shaft 30 can be prolonged, and the slideway shaft is not easy to break off in the using process.

In this embodiment, the slide shaft 30 comprises a hard wire. Optionally, the hard metal wire has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like.

Alternatively, the high hardness and wear resistance of the hard wire substantially maintains a high hardness even at higher temperatures.

Alternatively, the processing of the wire is relatively simple and easy to manufacture.

In this embodiment, the metal wire may be produced by drawing, and the wire rod or wire blank is drawn out from the die hole of the die under the drawing force to produce a metal plastic working process of a steel wire or metal wire with a small cross section. The drawn metal wire has precise size, smooth surface, simple drawing apparatus and mold and easy manufacture.

In some embodiments, a first end of the slide shaft 30 is disposed at a central axis of the retaining member 101, and a second end of the slide shaft 30 is disposed at a central axis of the valve seat 102. The sizes of the cavity of the valve core 20 and the cavity of the valve body 10 are not strictly limited, and only the valve core 20 needs to block the valve port 103 of the valve seat 102, so that the processing difficulty can be reduced, and the consumable of the valve core 20 can be saved.

In the present embodiment, the first end and the second end of the slide shaft 30 are both disposed at the central position, and the cavity of the valve body 10 has an inner circular structure. Thus, the valve core 20 may have a regular cylindrical structure, and in the design of the valve core 20, only consideration is needed to be given to whether the valve core 20 can block the valve port 103. Because the slide shaft 30 and thus the valve element 20 are in the center position, the switching movement between the stopper 101 and the valve seat 102 is facilitated.

In the refrigeration system, the fluid may include a refrigerant, and when the refrigerant flows from the stopper 101 side to the valve port 103 side of the valve seat 102, the refrigerant pushes the valve body 20 to move along the slide shaft 30 until the valve port 103 of the valve seat 102 is blocked, and the refrigerant cannot flow from the stopper 101 side to the valve port 103 side of the valve seat 102.

When the refrigerant flows from the valve port 103 side of the valve seat 102 to the stopper 101 side, the refrigerant pushes the valve body 20 to move along the slide shaft 30 until the valve body 20 is separated from the valve port 103 of the valve seat 102, and the refrigerant flows from the valve port 103 side of the valve seat 102 to the stopper 101 side.

Through the slide axle 30 that sets up in case 20, can replace traditional check valve in the adherence type structure, to the strict requirement of case 20 and 10 cavity size cooperation relations of valve body, can satisfy the function of switching on and ending of check valve itself simultaneously, reduced the processing degree of difficulty of case 20 and 10 cavities of valve body, practice thrift case consumptive material reduce cost to a certain extent.

As shown in connection with fig. 3, in some embodiments, the valve port 103 includes: and a sealing flap 104 disposed on the fixed extension plate of the valve seat 102. The sealing performance of the check valve can be ensured.

In the present embodiment, a stopper 101 and a valve seat 102 are provided in the valve body 10, and the valve element 20 is provided between the stopper 101 and the valve seat 102. A first end of the slide shaft 30 is disposed on the stopper 101, and a second end of the slide shaft 30 is disposed on the valve seat 102. The valve seat 102 is provided with a valve port 103 for passing fluid, the valve port 103 is also provided with a fixed extension plate, and the valve port 103 further comprises a sealing baffle plate 104.

In this embodiment, the sealing flap 104 is disposed on the fixed extension plate. Used for sealing the connecting gap between the slide shaft 30 and the valve core 20. The slide shaft 30 is disposed on the fixed extension plate, and when the check valve is in a reverse blocking state, the sealing baffle plate 104 seals the slide shaft 30 and the fixed extension plate, so that fluid cannot pass through the check valve in the reverse blocking state.

In some embodiments, as shown in fig. 3, the seal flap 104 is located on one side of the valve core 20, and the second end of the slide shaft 30 is disposed on the seal flap 104. The sealing performance of the one-way valve is ensured.

In this embodiment, the sealing flap 104 is disposed inside the fixed extension plate and contacts one end of the valve element 20. The valve core 20 is connected to the slide shaft 30, and the slide shaft 30 is connected to the sealing flap 104, so that the sealing flap 104 can block the connection between the slide shaft 30 and the valve core 20.

As shown in connection with fig. 4-5, in some embodiments, the valve cartridge 20 includes: a plugging portion 201 including a plug having a tapered structure; the sliding portion 202 is slidably connected to the slide shaft 30.

In the present embodiment, the valve element 20 is disposed in the limiting space, the valve element 20 has a first end and a second end, the first end is a plug with a tapered structure, and the second end is the sliding portion 202. The valve seat 102 is provided with a valve port 103, and the blocking part 201 faces the valve port 103; the sliding portion 202 is slidably connected to the slide shaft 30, and moves the valve body 20. When the fluid flows in the forward direction from one side of the valve seat 102, the fluid pushes the blocking part 201 of the valve element 20, so that the fluid can flow in from the valve port 103 of the valve seat 102, and a channel of the check valve is opened; when fluid flows in from the stopper 101 side, the fluid pushes the valve element 20, so that the stopper portion 201 of the valve element 20 can be inserted into the valve port 103 of the valve seat 102, thereby closing the passage of the check valve.

In some embodiments, the valve cartridge 20 further comprises: a sealing groove 203 provided in the sealing portion 201; when the blocking portion 201 blocks the valve port 103, the sealing groove 203 can be matched with the sealing baffle 104 for sealing.

In this embodiment, the valve element 20 includes a blocking portion 201 and a sliding portion 202, where the blocking portion 201 and the sliding portion 202 are an integral structure, a sealing groove 203 is further disposed on one side of the blocking portion 201, the shape of the sealing groove 203 is adapted to the shape of the sealing flap 104, and when the blocking portion 201 blocks the valve port 103, the sealing groove 203 can cooperate with the sealing flap 104 for sealing. The sealing baffle plate 104 can be embedded into the sealing groove 203 to enhance the sealing performance

In some embodiments, the valve cartridge 20 further comprises: and the shaft hole penetrates through the valve core 20 body and is connected with the slide way shaft 30 in a sliding way.

In this embodiment, the valve body 20 is provided with a shaft hole penetrating through the body of the valve body 20 so as to be connected to the slide shaft 30, the shaft hole is provided in the middle of the valve body 20, and the slide shaft 30 penetrates through the shaft hole, so that the valve body 20 can move on the slide shaft 30.

In some embodiments, the valve spool 20 is in clearance with the inner sidewall of the valve body 10. The valve spool 20 is prevented from colliding with the inner sidewall of the valve body 10.

In this embodiment, the inner side walls of the valve element 20 and the valve body 10 do not have strict matching requirements, and the valve element 20 needs to have a certain gap with the inner side walls of the valve body 10, so that the valve element 20 can be slidably connected to the slide shaft 30, and the valve element 20 can be switched between the limiting member 101 and the valve seat 102 back and forth, thereby greatly reducing the difficulty in processing the valve element 20.

In summary, with the above technical solution, the spool can slide on the slide shaft by providing the slide shaft, the sidewall of the spool may not be used in cooperation with the inner sidewall of the valve body, and the top of the spool can open or close the valve port, thereby reducing the difficulty in cooperation between the spool and the inner sidewall of the valve body to a certain extent; the sealing baffle and the sealing groove are matched for use, so that the sealing performance of the one-way valve is also ensured.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A check valve, comprising:

a valve body (10) having a stopper (101) and a valve seat (102);

a valve element (20) arranged in the valve body (10);

a slide shaft (30) having a first end disposed on the stopper (101) and a second end disposed on the valve seat (102);

the valve core (20) is connected to a slide shaft (30) in a sliding mode, and the valve core (20) moves on the slide shaft (30) to open or close a valve port (103) of the valve seat (102).

2. The check valve of claim 1, wherein the valve seat (102) further comprises:

the fixed extension plate is arranged on the valve port (103), and the second end of the slide way shaft (30) is arranged on the fixed extension plate.

3. The check valve of claim 1, wherein the spool shaft (30) comprises a stiff wire.

4. The non-return valve according to claim 1, characterized in that a first end of the slide shaft (30) is arranged at a central axial position of the retainer (101) and a second end of the slide shaft (30) is arranged at a central axial position of the valve seat (102).

5. The non-return valve according to any one of claims 1 to 4, characterized in that the valve port (103) comprises:

a sealing baffle plate (104) arranged on the fixed extension plate of the valve seat (102).

6. The check valve of claim 5, wherein the sealing flap (104) is located on a side of the spool (20), and the second end of the slide shaft (30) is disposed at the sealing flap (104).

7. The check valve of claim 5, wherein the spool (20) includes:

a plugging portion (201) comprising a plug of a conical structure;

and a sliding part (202) which is connected with the slideway shaft (30) in a sliding way.

8. The check valve of claim 7, wherein the spool (20) further comprises:

a sealing groove (203) provided in the sealing portion (201);

when the blocking part (201) blocks the valve port (103), the sealing groove (203) can be matched with the sealing baffle sheet (104) for sealing.

9. The check valve of claim 1, wherein the spool (20) further comprises:

and the shaft hole penetrates through the valve core (20) body and is connected with the slide way shaft (30) in a sliding manner.

10. The check valve of claim 1, wherein the spool (20) is gapped from an inner sidewall of the valve body (10).

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