CN212080232U - Combination valve - Google Patents

Abstract

The utility model provides a combination valve, this combination valve includes: a pilot valve; the main valve is communicated with the main valve through a capillary tube and is provided with an inlet connecting pipe and an outlet connecting pipe, the inlet connecting pipe is a bent pipe, the connecting position of the inlet connecting pipe and the main valve is positioned on one side of the main valve, and the connecting position of the outlet connecting pipe and the main valve is positioned on the other side of the main valve; the check valve is provided with a first valve port, a second valve port and a valve core, the valve core is movably arranged between the first valve port and the second valve port and can seal the first valve port, and the second valve port is connected with the inlet connecting pipe. Through the technical scheme that this application provided, can solve the problem of the valve body function singleness among the prior art.

Description

Combination valve

Technical Field

The utility model relates to a valve body technical field particularly, relates to a combination valve.

Background

At present, the existing valve body structure has single function and can only meet the fluid control requirement. If other functions are needed, new parts need to be additionally added after the valve body is installed, and time and labor are wasted. The existing valve body structure can not meet the requirement of function diversification.

SUMMERY OF THE UTILITY MODEL

The utility model provides a combination valve to solve the problem of the valve body function singleness among the prior art.

The utility model provides a combination valve, combination valve includes: a pilot valve; the main valve is communicated with the main valve through a capillary tube and is provided with an inlet connecting pipe and an outlet connecting pipe, the inlet connecting pipe is a bent pipe, the connecting position of the inlet connecting pipe and the main valve is positioned on one side of the main valve, and the connecting position of the outlet connecting pipe and the main valve is positioned on the other side of the main valve; the check valve is provided with a first valve port, a second valve port and a valve core, the valve core is movably arranged between the first valve port and the second valve port and can seal the first valve port, and the second valve port is connected with the inlet connecting pipe.

Furthermore, the inlet connecting pipe is provided with a first section and a second section which are connected with each other, the first section and the second section have an included angle, and the first section is connected with the one-way valve.

Further, the axis of the one-way valve coincides with the axis at the port of the first section.

Further, the axis of the inlet connection pipe, the axis of the main valve and the axis of the outlet connection pipe are all located on the same plane.

Further, the axis of the main valve and the axis of the outlet connection pipe are located on the same plane, and the axis of the first section and the plane form an included angle.

Further, the axis of the main valve and the axis of the outlet connection pipe are located on the same plane, and the axis of the first section is arranged in parallel with the plane.

Further, the combination valve further comprises: the filtering piece is connected with the first valve port; 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 joint of the inlet connection pipe and the main valve is not coincident with the central line of the main valve in the radial direction.

Use the technical scheme of the utility model, this combination valve includes pilot valve, main valve and check valve, through being connected check valve and import takeover, can utilize the check valve to carry out flow direction control to the fluid. Through the device that this application provided, can realize one-way function on the basis of satisfying valve body basic function, avoid the fluid reflux phenomenon to appear. The problem of current valve body structure have the function singleness is solved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, 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 shows a schematic structural diagram of a combination valve provided in an embodiment of the present invention;

FIG. 2 shows a further schematic representation of the combination valve of FIG. 1;

FIG. 3 shows a cross-sectional view at the connection of FIG. 2;

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

FIG. 5 shows a further schematic representation of the combination valve of FIG. 4;

fig. 6 shows a schematic structural diagram of a combination valve provided by the third embodiment of the present invention;

FIG. 7 shows a further schematic representation of the combination valve of FIG. 6;

fig. 8 shows a schematic structural diagram of a combination valve provided by the fourth embodiment of the present 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, a combination valve according to a first embodiment of the present invention includes: 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 has an inlet connection pipe 21 and an outlet connection pipe 22, and the inlet connection pipe 21 is a bent pipe, so that the occupied size in the vertical direction can be reduced, the space around the main valve 20 can be fully utilized, and the component arrangement is more compact. The connection point of the inlet connection pipe 21 and the main valve 20 is located at one side of the main valve 20, and the connection point of the outlet connection pipe 22 and the main valve 20 is located at the other side of the main valve 20, so that the inlet connection pipe 21 and the outlet connection pipe 22 have sufficient space, and other pipelines and equipment can be connected conveniently without interference. The check valve 50 has a first port, a second port, and a valve core movably disposed between the first port and the second port and capable of closing the first port, the valve core is used for controlling fluid flowing from the first port to the second port and preventing the fluid from flowing in reverse direction, and the check valve 50 is disposed to prevent the fluid from flowing back, thereby ensuring normal operation of the device connected to the first port.

By the combination valve provided by the present application, which comprises the pilot valve 10, the main valve 20 and the check valve 50, the flow direction of the fluid can be controlled by the check valve 50 by connecting the check valve 50 with the inlet connection pipe 21. Through the device that this application provided, can realize one-way function on the basis that satisfies valve body basic function, solve current valve body structure and have the problem of function singleness. In addition, the connection between the inlet connection pipe 21 and the main valve 20 and the connection between the outlet connection pipe 22 and the main valve 20 are respectively disposed at both sides of the main valve 20, so that the spaces at both sides of the main valve 20 can be fully utilized, thereby preventing the interference between the two parts and providing sufficient space for the two parts.

Specifically, the inlet connection pipe 21 has a first section and a second section connected to each other, the first section and the second section having an included angle, and the first section is connected to the check valve 50. The specific angle can be set according to actual needs to avoid interference with other parts.

The combination valve further includes a filter element 40, the filter element 40 being connected to the first valve port. 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.

Wherein, in the present embodiment, the axis of the filter member 40, the axis of the check valve 50, and the axis at the port of the first section coincide with each other. Through the arrangement, the filtering piece 40, the one-way valve 50 and the first section of port can be located on the same straight line, and therefore, the occupied space is reduced as far as possible on the premise that the valve body has multiple functions.

In the present embodiment, the axis of the inlet nipple 21, the axis of the main valve 20 and the axis of the outlet nipple 22 all lie in the same plane. Through the scheme, the filter element 40, the one-way valve 50, the inlet connecting pipe 21 and the outlet connecting pipe 22 can be reasonably placed, so that the device is multifunctional and 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.

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. 2 and 3, in the present embodiment, the combination valve further includes a connection member 70, the connection member 70 is disposed on a sidewall of the inlet nozzle 21 and/or the outlet nozzle 22, the connection 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 with the nozzles through the connection 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 the present embodiment, the junction of the inlet nipple 21 and the main valve 20 is not coincident with the center line of the main valve 20 in the radial direction. This arrangement can prevent the fluid flowing into the main valve 20 from the inlet connection pipe 21 from directly colliding with the valve element in the middle of the main valve 20, and reduce the resistance to the fluid.

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. The piston 52 is the aforementioned valve element, the piston 52 is movably disposed in the valve body 51, and the piston 52 has a blocking position for blocking the flow passage and an open position for opening 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 and 5, the second embodiment of the present application provides a combination valve, which is different from the first embodiment in that the axis of the main valve 20 and the axis of the outlet connection tube 22 are located on the same plane, and the axis of the first segment is at an angle with the plane.

In the present embodiment, the axis of the first segment is perpendicular to the plane where the axis of the main valve 20 and the axis of the outlet connection pipe 22 are located, and the above configuration also serves to reduce the size of the entire device in the vertical direction, thereby making the structure compact.

As shown in fig. 6 and 7, the third embodiment of the present application provides a combination valve, which is different from the first embodiment in that the axis of the main valve 20 and the axis of the outlet nipple 22 are located on the same plane, and the axis of the first segment is arranged in parallel with the plane. In particular, the end of the first segment extends to the side of the main valve 20 where the outlet nipple 22 is located, which further reduces the size of the device in the up-down direction, making the device more compact.

As shown in fig. 8, the fourth 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.

Unless specifically stated 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. 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 should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, 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 simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted 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 if not stated otherwise, the terms have no special meaning, 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 (10)

1. A combination valve, comprising:

a pilot valve (10);

the main valve (20), the pilot valve (10) is communicated with the main valve (20) through a capillary tube (30), the main valve (20) is provided with an inlet connecting tube (21) and an outlet connecting tube (22), the inlet connecting tube (21) is a bent tube, the connecting position of the inlet connecting tube (21) and the main valve (20) is positioned on one side of the main valve (20), and the connecting position of the outlet connecting tube (22) and the main valve (20) is positioned on the other side of the main valve (20);

the check valve (50) is provided with a first valve port, a second valve port and a valve core, the valve core is movably arranged between the first valve port and the second valve port and can close the first valve port, and the second valve port is connected with the inlet connecting pipe (21).

2. Combination valve according to claim 1, wherein the inlet connection (21) has a first section and a second section connected to each other, the first section and the second section having an included angle, the first section being connected to the one-way valve (50).

3. A combination valve according to claim 2, wherein the axis of the one-way valve (50) and the axis at the port of the first section coincide with each other.

4. Combination valve according to claim 2, wherein the axis of the inlet nipple (21), the axis of the main valve (20) and the axis of the outlet nipple (22) all lie in the same plane.

5. A combination valve according to claim 3, wherein the axis of the main valve (20) and the axis of the outlet connection (22) lie in the same plane, the axis of the first section being at an angle to this plane.

6. A combined valve according to claim 3, characterised in that the axis of the main valve (20) and the axis of the outlet connection (22) lie in the same plane, the axis of the first section being arranged parallel to this plane.

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

a filter element (40) connected to the first valve port;

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

8. The combination valve of claim 7, 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).

9. Combination valve according to claim 8, 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).

10. A combination valve according to claim 1, wherein the junction of the inlet nipple (21) and the main valve (20) is not coincident with the centre line of the main valve (20) in the radial direction.

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