CN113513608A

CN113513608A - Combination valve

Info

Publication number: CN113513608A
Application number: CN202010280920.9A
Authority: CN
Inventors: 俞舟; 熊匀均; 邵巨灿; 杨剑
Original assignee: Dunan Environment Technology Co Ltd
Current assignee: Dunan Environment Technology Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2021-10-19

Abstract

The present invention provides a combination valve comprising: a pilot valve; the main valve is of a cylindrical hollow structure, a valve core is arranged in the main valve, the pilot valve is communicated with the interior of the main valve through a capillary tube, an inlet connecting pipe and an outlet connecting pipe are arranged on the main valve, the inlet connecting pipe is positioned on one side of the main valve, and the outlet connecting pipe is positioned on the other side of the main valve; one end of the one-way valve is connected with the inlet connecting pipe; the central axis of the one-way valve is positioned in a plane formed by the central axes of the main valve and the outlet connecting pipe or is arranged in parallel with the plane, and the total length of the one-way valve is not more than the farthest distance from the end part of the main valve to the central axis of the outlet connecting pipe. Through the technical scheme that this application provided, can solve the big problem of valve body occupation space among the prior art.

Description

Combination valve

Technical Field

The invention relates to the technical field of valve bodies, in particular to a combined valve.

Background

Currently, existing valve bodies have an inlet connection pipe and an outlet connection pipe, which communicate with an external pipeline through the inlet connection pipe and the outlet connection pipe. The existing valve body has messy pipeline layout, so that the whole occupied space of the device is large.

Disclosure of Invention

The invention provides a combined valve, which aims to solve the problem that a valve body in the prior art occupies a large space.

The present invention provides a combination valve comprising: a pilot valve; the main valve is of a cylindrical hollow structure, a valve core is arranged in the main valve, the pilot valve is communicated with the interior of the main valve through a capillary tube, an inlet connecting pipe and an outlet connecting pipe are arranged on the main valve, the inlet connecting pipe is positioned on one side of the main valve, and the outlet connecting pipe is positioned on the other side of the main valve; one end of the one-way valve is connected with the inlet connecting pipe; the central axis of the one-way valve is positioned in a plane formed by the central axes of the main valve and the outlet connecting pipe or is arranged in parallel with the plane, and the total length of the one-way valve is not more than the farthest distance from the end part of the main valve to the central axis of the outlet connecting pipe.

Furthermore, the combination valve also comprises a filtering piece, the filtering piece is connected with the other end of the one-way valve, the inlet connecting pipe is a bent pipe, and the connecting direction of the filtering piece and the one-way valve is the same as the axial direction of the main valve.

Further, the combination valve further comprises: and the detection piece is arranged on the side wall of the inlet connecting pipe and/or the outlet connecting pipe.

Further, the combination valve further comprises: the connecting piece is arranged on the side wall of the inlet connecting pipe and/or the outlet connecting pipe and is provided with an inlet and an outlet, the inlet is communicated with the inlet connecting pipe, and the detection piece is communicated with the outlet.

Further, a connecting piece is arranged on the inlet connecting pipe, the connecting piece is provided with a plurality of outlets, one end of the capillary tube is communicated with the pilot valve, and the other end of the capillary tube is communicated with one of the outlets.

Further, the connecting piece has a positioning structure, which is arranged at the inlet and/or the outlet.

Further, the check valve includes: the valve body is provided with a flow passage, and one end of the valve body is connected with the inlet connecting pipe; a piston movably disposed in the valve body, the piston having a blocking position to block the flow passage and an open position to open the flow passage; and the guide assembly is arranged in the valve body and is used for guiding the piston.

Further, the piston has a guide hole, and the guide assembly includes: the guide post is arranged in the valve body, the guide post is in inserted fit with the guide hole, the piston moves along the axis direction of the guide post, the guide post is provided with a balance hole, one end of the balance hole is communicated with the guide hole, and the other end of the balance hole is communicated with the circulation channel; and the positioning piece is arranged in the valve body and used for fixing the position of the guide column in the valve body.

Furthermore, a flow guide structure is arranged on the inner wall of the valve body and/or the piston.

Further, the valve body has relative first end and the second end that sets up, and the internal diameter of first end is held the grow gradually by first end to the second, and the piston has the shutoff end and the link of relative setting, and the shutoff end is close to first end setting, and the external diameter of shutoff end is held by the shutoff and is diminishing to the link gradually.

By applying the technical scheme of the invention, the combined valve comprises the pilot valve, the main valve and the one-way valve, the central axis of the one-way valve is arranged in a plane formed by the central axes of the main valve and the outlet connecting pipe or is arranged in parallel with the plane, and the total length of the one-way valve is not more than the farthest distance from the end part of the main valve to the central axis of the outlet connecting pipe. Therefore, the one-way function can be realized by utilizing the one-way valve, and the one-way valve, the inlet connecting pipe and the outlet connecting pipe can be neatly and reasonably arranged, so that the device has multiple functions and is more compact, and the occupied space is saved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram illustrating a configuration of a combination valve according to an embodiment of the present invention;

FIG. 2 shows a further structural schematic of the combination valve;

FIG. 3 shows a cross-sectional view of the connection;

fig. 4 shows a schematic structural diagram of a combination valve provided by the second embodiment of the invention.

Wherein the figures include the following reference numerals:

10. a pilot valve;

20. a main valve; 21. an inlet connection pipe; 22. an outlet connection pipe;

30. a capillary tube;

40. a filter member;

50. a one-way valve; 51. a valve body; 52. a piston; 53. a guide post; 531. a balance hole; 54. a positioning member; 50a, a flow guide structure;

60. detecting piece

70. A connecting member; 71. an inlet; 72. and (7) an outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, a first embodiment of the present application provides a combination valve, including: a pilot valve 10, a main valve 20 and a check valve 50. Wherein the pilot valve 10 communicates with the main valve 20 through a capillary tube 30, the pilot valve 10 being used to control the main valve 20. The main valve 20 is a cylindrical hollow structure, a valve core is arranged in the main valve 20, an inlet connecting pipe 21 and an outlet connecting pipe 22 are arranged on the main valve 20, the inlet connecting pipe 21 is positioned on one side of the main valve 20, and the outlet connecting pipe 22 is positioned on the other side of the main valve 20, so that the inlet connecting pipe 21 and the outlet connecting pipe 22 have sufficient space, and other pipelines and equipment can be conveniently connected subsequently. One end of the check valve 50 is connected to the inlet nipple 21. The provision of the check valve 50 prevents fluid backflow. Wherein the central axis of the check valve 50 is located in or parallel to a plane formed by the central axes of the main valve 20 and the outlet nipple 22, and the total length of the check valve 50 is set to be not more than the farthest distance from the end of the main valve 20 to the central axis of the outlet nipple 22. By the arrangement, the components can be arranged neatly, and the occupied space of the device is reduced. Specifically, in the present embodiment, the main valve 20 is mounted with a plurality of outlet nipples 22, the plurality of outlet nipples 22 are arranged side by side on the main valve 20, and the total length of the check valve 50 is not greater than the distance between the end of the main valve 20 and the centerline axis of the outlet nipple 22 located farthest therefrom.

With the combination valve provided by the present embodiment, which includes the pilot valve 10, the main valve 20, and the check valve 50, the center axis of the check valve 50 is located within or parallel to the plane formed by the center axes of both the main valve 20 and the outlet nipple 22, and the total length of the check valve 50 is set to be not more than the farthest distance from the end of the main valve 20 to the center axis of the outlet nipple 22. Therefore, the one-way function can be realized by utilizing the one-way valve 50, and the one-way valve 50, the inlet connecting pipe 21 and the outlet connecting pipe 22 can be reasonably arranged, so that the device has multiple functions and is more compact, and the occupied space is saved. Through the technical scheme, the valve body function can be enriched, the device integration level is improved, and the device is more compact.

Wherein the combination valve further comprises a filter member 40, and the filter member 40 is connected to the other end of the check valve 50. Through setting up filter 40 and can filtering the fluid, avoid too much impurity to get into valve body or follow-up equipment in, influence the normal operating of valve body and equipment. The inlet connection pipe 21 may be a straight pipe or a bent pipe. In the present embodiment, the inlet connection pipe 21 is provided as a bent pipe, and the connection direction of the filter member 40 and the check valve 50 is the same as the axial direction of the main valve 20. With this arrangement, the size occupied in the vertical direction can be reduced, and the space around the main valve 20 can be fully utilized, so that the component arrangement can be made more compact.

Specifically, in the present embodiment, the combination valve further includes a detection member 60, and the detection member 60 is disposed on a sidewall of the inlet connection pipe 21 and/or the outlet connection pipe 22. By providing the detecting member 60, it is possible to detect data relating to the fluid, such as: flow rate, pressure, etc. of the fluid. This facilitates real-time monitoring of the fluid.

The detecting element 60 may be directly connected to the inlet connection tube 21 or the outlet connection tube 22, or may be indirectly connected to the connection tube through an auxiliary element.

As shown in fig. 3, in the present embodiment, the combination valve further includes a connecting member 70, the connecting member 70 is disposed on a sidewall of the inlet nozzle 21 and/or the outlet nozzle 22, the connecting member 70 has an inlet 71 and an outlet 72, the inlet 71 is communicated with the inlet nozzle 21, the sensing member 60 is communicated with the outlet 72, and the sensing member 60 is connected to the nozzles through the connecting member 70. Through the mode, the temporary punching connection on the connecting pipe can be avoided when the detection is required temporarily. The connecting piece 70 is provided to facilitate the connection of the detecting piece 60 with the adapter tube at any time.

Specifically, in this embodiment, the outlet 72 has a plurality of outlets, the detecting element 60 also has a plurality of outlets, and the detecting element 60 and the outlet 72 are disposed in a one-to-one correspondence manner, so that the connecting element 70 can be used to connect a plurality of detecting elements 60, which can improve the integration level of components and the convenience of connection.

Wherein a connecting member 70 is provided on the inlet adapter 21, the connecting member 70 having a plurality of outlets 72, one end of the capillary tube 30 communicating with the pilot valve 10, the other end of the capillary tube 30 communicating with one of the outlets 72. Through the mode, the capillary tube 30 can be prevented from being additionally connected by punching on the inlet connecting pipe 21, the convenience of component connection is further improved, the operation steps can be reduced, the installation time is shortened, and the installation efficiency is improved.

In particular, the connector 70 has a locating feature provided at the inlet 71 and/or the outlet 72. Due to the design, the connecting piece 70 can be conveniently connected with other pipelines, the pipelines are ensured to be installed in place, and the pipeline connection stability is improved.

Wherein an annular boss may be provided at the periphery of the inlet 71, by which positioning is performed.

In this embodiment, the connecting member 70 has a connecting hole, the connecting hole forms the outlet 72, the connecting hole can be designed as a stepped hole, and a positioning structure is formed by a stepped surface, so that the end of the pipeline is abutted against the stepped surface, thereby preventing the end of the pipeline from extending too deeply or too shallowly and ensuring the connection reliability.

In the present embodiment, the check valve 50 includes: a valve body 51, a piston 52 and a guide assembly. Wherein the valve body 51 has a flow passage, one end of the valve body 51 is connected to the filter member 40, and the other end of the valve body 51 is connected to the inlet connection pipe 21. A piston 52 is movably disposed in the valve body 51, the piston 52 having a blocking position to block the flow passage and an open position to open the flow passage. A guide assembly is provided within the valve body 51 for guiding the piston 52. By providing a guide assembly, smooth and directional movement of the piston 52 within the valve body 51 is ensured.

Specifically, the plunger 52 has a guide hole, and the guide assembly includes a guide post 53 and a positioning member 54. Wherein, the guide post 53 is arranged in the valve body 51, the guide post 53 is in inserting fit with the guide hole, the guide post 53 is at least partially inserted into the guide hole so as to enable the piston 52 to move along the axial direction of the guide post 53, the guide post 53 is provided with a balance hole 531, one end of the balance hole 531 is communicated with the guide hole, and the other end of the balance hole 531 is communicated with the circulation channel. A positioning member 54 is provided in the valve body 51, and the position of the guide post 53 in the valve body 51 can be fixed by the positioning member 54.

As shown in fig. 1, the left port of the valve body 51 is an inlet side, the right port is an outlet side, the inlet side is a high pressure, the outlet side is a low pressure, and the balance hole 531 is arranged to communicate the guide hole with the low pressure, so that the fluid pushes the piston 52 to move rightward in the flow, the obstruction of the fluid caused by the piston 52 in the forward flow is reduced, and the flow blocking effect is reduced.

The inner wall of the valve body 51 and/or the piston 52 are/is provided with a flow guide structure 50a, and the flow guide structure 50a can reduce the turbulence phenomenon of fluid in the valve body 51 and reduce the obstruction to the fluid.

Specifically, the valve body 51 has a first end and a second end which are oppositely arranged, and the inner diameter of the first end is gradually increased from the first end to the second end, so that the inner wall of the first end forms a flow guiding inclined surface for guiding flow. The piston 52 has a plugging end and a connecting end which are oppositely arranged, the plugging end is arranged close to the first end, and the outer diameter of the plugging end is gradually reduced from the plugging end to the connecting end. So set up for the outer wall of shutoff end also forms the water conservancy diversion inclined plane, makes the fluid can smoothly pass through piston 52.

As shown in fig. 4, the second embodiment of the present application provides a combination valve, which is different from the first embodiment in that no connection member is provided in the present embodiment, and the capillary tube 30 and the detection member 60 are directly connected to the inlet connection tube 21. The number of parts of the device can be reduced by the structure.

According to the technical scheme provided by the application, the combined valve is provided with the filtering piece 40, the one-way valve 50 and the detecting piece 60, so that the functions of filtering, one-way and detecting fluid can be realized; and through reasonable arrangement, the peripheral space of the main valve 20 can be fully utilized to construct a compact combination valve, so that the combination valve meets the development requirements of miniaturization and integration.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A combination valve, comprising:

a pilot valve (10);

the main valve (20) is of a cylindrical hollow structure, a valve core is arranged in the main valve (20), the pilot valve (10) is communicated with the interior of the main valve (20) through a capillary tube (30), an inlet connecting pipe (21) and an outlet connecting pipe (22) are installed on the main valve (20), the inlet connecting pipe (21) is located on one side of the main valve (20), and the outlet connecting pipe (22) is located on the other side of the main valve (20);

a check valve (50), one end of the check valve (50) is connected with the inlet connecting pipe (21);

wherein the central axis of the one-way valve (50) is located in the plane formed by the central axes of the main valve (20) and the outlet connection pipe (22) or is arranged in parallel with the plane, and the total length of the one-way valve (50) is not more than the farthest distance from the end part of the main valve (20) to the central axis of the outlet connection pipe (22).

2. The combination valve according to claim 1, further comprising a filter member (40), wherein the filter member (40) is connected to the other end of the check valve (50), the inlet connection pipe (21) is an elbow pipe, and the filter member (40) and the check valve (50) are connected in the same direction as the axial direction of the main valve (20).

3. The combination valve of claim 1, further comprising:

a detection element (60) arranged on a side wall of the inlet connection piece (21) and/or the outlet connection piece (22).

4. The combination valve of claim 3, further comprising:

the connecting piece (70) is arranged on the side wall of the inlet connecting pipe (21) and/or the outlet connecting pipe (22), the connecting piece (70) is provided with an inlet (71) and an outlet (72), the inlet (71) is communicated with the inlet connecting pipe (21), and the detecting piece (60) is communicated with the outlet (72).

5. Combination valve according to claim 4, wherein the connection member (70) is arranged on the inlet connection (21), the connection member (70) having a plurality of said outlets (72), one end of the capillary tube (30) communicating with the pilot valve (10) and the other end of the capillary tube (30) communicating with one of the outlets (72).

6. A combination valve according to claim 4, wherein the connection piece (70) has a positioning structure provided at the inlet (71) and/or the outlet (72).

7. Combination valve according to claim 1, wherein the non-return valve (50) comprises:

a valve body (51) having a flow passage, one end of the valve body (51) being connected to the inlet connection pipe (21);

a piston (52) movably disposed in the valve body (51), the piston (52) having a blocking position to block the flow passage and an open position to open the flow passage;

a guide assembly disposed within the valve body (51), the guide assembly for guiding the piston (52).

8. The combination valve of claim 7, wherein the piston (52) has a pilot bore, the pilot assembly comprising:

the guide post (53) is arranged in the valve body (51), the guide post (53) is in plug fit with the guide hole, the piston (52) moves along the axial direction of the guide post (53), the guide post (53) is provided with a balance hole (531), one end of the balance hole (531) is communicated with the guide hole, and the other end of the balance hole (531) is communicated with the circulation channel;

the positioning piece (54) is arranged in the valve body (51), and the positioning piece (54) is used for fixing the position of the guide column (53) in the valve body (51).

9. Combination valve according to claim 7, wherein a flow guiding structure (50a) is provided on the inner wall of the valve body (51) and/or on the piston (52).

10. The combination valve of claim 9, wherein the valve body (51) has a first end and a second end which are oppositely arranged, the inner diameter of the first end is gradually increased from the first end to the second end, the piston (52) has a blocking end and a connecting end which are oppositely arranged, the blocking end is arranged close to the first end, and the outer diameter of the blocking end is gradually decreased from the blocking end to the connecting end.