CN210716008U - Throttling valve and refrigeration equipment with same - Google Patents

Abstract

The utility model provides a choke valve and have its refrigeration plant, wherein, the choke valve, include: the valve pipe is provided with a plurality of concave structures which are arranged at intervals; the valve seat is fixed in the valve pipe, and the middle part of the valve seat is provided with a through hole; the valve needle is movably arranged in the valve pipe and at least partially positioned in the through hole, the inner walls of the concave structures limit the valve needle, and fluid channels are formed among the concave structures. The technical scheme of the utility model the fluid passage of choke valve among the prior art has been solved effectively the great problem of the degree of difficulty in processing.

Description

Throttling valve and refrigeration equipment with same

Technical Field

The utility model relates to a technical field of valve particularly, relates to a choke valve and have its refrigeration plant.

Background

The throttle valve plays a very important role in the use of the refrigeration appliance. By controlling the opening of the throttle valve, the flow rate, the pressure and other factors of the fluid in the refrigeration equipment controlled by the throttle valve are caused. In the prior art, the throttle valve is provided with the valve needle, the middle part of the valve needle is provided with the flow channel, and fluid circulates through the flow channel, but the flow channel of the fluid in the valve needle is time-consuming and labor-consuming in the manufacturing process, and the processing difficulty is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a choke valve and have its refrigeration plant to the fluid passage of the choke valve among the solution prior art the degree of difficulty is great problem in processing.

In order to achieve the above object, according to an aspect of the present invention, there is provided a throttle valve including: the valve pipe is provided with a plurality of concave structures which are arranged at intervals; the valve seat is fixed in the valve pipe, and the middle part of the valve seat is provided with a through hole; the valve needle is movably arranged in the valve pipe and at least partially positioned in the through hole, the inner walls of the concave structures limit the valve needle, and fluid channels are formed among the concave structures.

Further, the inner concave structure includes a plurality of inner grooves extending in an axial direction of the valve tube.

Further, the plurality of inner grooves are uniformly arranged in the circumferential direction of the valve tube.

Furthermore, the throttling valve also comprises a sealing head and an elastic part, the sealing head is fixed in the valve tube, a fluid channel is arranged between the sealing head and the valve tube, and the elastic part is arranged between the sealing head and the valve needle.

Further, the throttle valve also comprises a support frame which is fixed on the valve seat and is matched with the valve needle so that the valve needle has a gap with the valve seat.

Further, the valve needle comprises a straight rod section and a conical rod section which are connected with each other, the conical rod section is matched with the supporting frame, and the straight rod section is matched with the elastic part.

Further, the support frame includes the landing leg and has the limiting plate in spacing hole, and the first end of landing leg is installed and is cooperateed at the disk seat, and limiting plate integrated into one piece is held at the second of landing leg, and the taper rod section passes spacing hole and enters into to the downthehole.

Further, the circumferential outer wall of the end socket is provided with a first groove, and the valve pipe is provided with a first indentation structure matched with the first groove to fix the end socket.

Further, the circumferential outer wall of the valve seat is provided with a second groove, and the valve tube is provided with a second indentation structure matched with the second groove to fix the valve seat.

According to the utility model discloses a further aspect provides a refrigeration plant, including equipment main part and the choke valve of setting in the equipment main part, the choke valve is foretell choke valve.

Use the technical scheme of the utility model, when the fluid flows in the choke valve, the fluid passes through the via hole of disk seat, gets into the fluid passage between needle and the valve pipe, and the fluid flows from fluid passage. The fluid channel is formed by processing a concave structure on the valve pipe, so that the processing is easier and the manufacturing cost is lower. The technical scheme of the utility model the fluid passage of choke valve among the prior art has been solved effectively the great problem of the degree of difficulty in processing.

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:

figure 1 shows a schematic cross-sectional view of an embodiment of a throttle valve according to the present invention;

FIG. 2 shows a schematic cross-sectional view of the throttle valve of FIG. 1 in perspective;

FIG. 3 shows a schematic cross-sectional view at the head of the throttling valve of FIG. 1;

FIG. 4 shows a schematic cross-sectional view at the valve needle of the throttling valve of FIG. 1;

FIG. 5 shows a schematic perspective view of a support bracket for the throttle valve of FIG. 1;

FIG. 6 shows a schematic top view of the support bracket of the throttle valve of FIG. 1;

FIG. 7 shows a schematic perspective view of another angle of the support bracket of the throttle valve of FIG. 1; and

FIG. 8 shows a schematic cross-sectional view of a valve seat of the throttling valve of FIG. 1.

Wherein the figures include the following reference numerals:

10. a valve tube; 20. a valve seat; 21. a via hole; 30. a valve needle; 31. a straight pole section; 32. a taper rod section; 40. sealing the end; 50. an elastic member; 60. a support frame; 61. a support leg; 62. a limiting plate; 63. and a limiting hole.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

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.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

As shown in fig. 1 to 8, the throttle valve of the present embodiment includes: valve tube 10, valve seat 20 and valve needle 30. The valve tube 10 has a plurality of concave structures arranged at intervals. The valve seat 20 is fixed in the valve tube 10, and the middle of the valve seat 20 has a through hole 21. The valve needle 30 is movably mounted in the valve tube 10, the valve needle 30 is at least partially located in the through hole 21, and inner walls of a plurality of concave structures form a limit to the valve needle 30, and fluid channels are formed between the concave structures.

With the solution of the embodiment, when the fluid flows in the throttling valve, the fluid passes through the through hole 21 of the valve seat 20, enters the fluid channel between the valve needle 30 and the valve tube 10, and flows out from the fluid channel. The fluid passage is formed by processing the valve tube 10 in a concave structure, and such processing is easy and the manufacturing cost is low. The technical scheme of this embodiment has solved the problem that the fluid passage of choke valve among the prior art difficulty is great when processing effectively.

As shown in fig. 1 and 4, in the present embodiment, the concave structure includes a plurality of inner grooves extending in the axial direction of the valve tube 10. The concave structure extends along the axial direction of the valve tube 10, so that the concave structure has a certain length, the limiting distance of the valve needle 30 is longer, and the valve needle 30 is more stable in the moving process.

As shown in fig. 4, in the solution of the present embodiment, a plurality of inner grooves are uniformly arranged in the circumferential direction of the valve tube 10. Thus, the fluid is relatively uniform in flow, and the force applied to the valve needle 30 is relatively balanced.

As shown in fig. 1 and 3, in the solution of the present embodiment, the throttle valve further includes a sealing head 40 and an elastic member 50, the sealing head 40 is fixed in the valve tube 10, a fluid passage is formed between the sealing head 40 and the valve tube 10, and the elastic member 50 is disposed between the sealing head 40 and the valve needle 30. The sealing head 40 is configured such that the elastic member 50 applies an elastic force to the valve needle 30, so that the valve needle 30 has a certain force to lift the valve needle 30 when the fluid has a certain pressure. Specifically, the elastic element 50 is a spring, one side of the end enclosure 40 close to the valve needle 30 is provided with a first convex column, and the first end of the spring is sleeved on the first convex column. One side of the valve needle 30 close to the end socket 40 is provided with a second convex column, and a second end of the spring is sleeved on the second convex column. Such a spring structure stability is better, is difficult to shift.

As shown in fig. 1, 5, 6 and 7, in the solution of the present embodiment, the throttle valve further includes a support bracket 60, and the support bracket 60 is fixed on the valve seat 20 and cooperates with the valve needle 30 to make the valve needle 30 have a gap with the valve seat 20. The support bracket 60 is provided such that the valve needle 30 has a certain gap with the valve seat 20 at the initial position, so that the fluid can flow in the valve tube 10 when the pressure is relatively small.

In the solution of the present embodiment, as shown in fig. 1, the valve needle 30 includes a straight rod section 31 and a conical rod section 32 connected to each other, the conical rod section 32 is engaged with the supporting frame 60, and the straight rod section 31 is engaged with the elastic member 50. The straight rod section 31 is convenient to be matched with the inward convex structure, and the conical rod section 32 is convenient to be matched with the supporting frame 60 and the valve seat 20. Specifically, the taper rod section 32 includes a first taper rod section and a second taper rod section, the first taper rod section is located between the straight rod section 31 and the second taper rod section, a large end of the first taper rod section is connected with the straight rod section 31, and a small end of the first taper rod section is connected with a large end of the second taper rod section. The second taper rod section is located in the through hole, and the first taper rod section is matched with the limiting hole 63.

As shown in fig. 5 to 7, in the technical solution of the present embodiment, the supporting frame 60 includes a leg 61 and a limiting plate 62 having a limiting hole 63, a first end of the leg 61 is mounted on the valve seat 20 and is matched with the valve seat, the limiting plate 62 is integrally formed at a second end of the leg 61, and the taper rod segment 32 passes through the limiting hole 63 and enters into the through hole 21. The support bracket 60 is positioned to allow fluid flow within the throttle valve when there is no or low pressure.

As shown in fig. 1 and 3, in the solution of the present embodiment, the circumferential outer wall of the sealing head 40 has a first groove, and the valve tube 10 has a first indentation structure matching with the first groove to fix the sealing head 40. The structure is easy to process and low in manufacturing cost. The first groove may be an interrupted groove.

As shown in fig. 1, in the solution of the present embodiment, the circumferential outer wall of the valve seat 20 has a second groove, and the valve tube 10 has a second indentation structure matching with the second groove to fix the valve seat 20. The structure is easy to process and low in manufacturing cost. The second grooves may be intermittent grooves.

The application also provides a refrigeration device, which comprises a device body and a throttle valve arranged on the device body. The throttle valve is the throttle valve described above.

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.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

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 (8)

1. A throttle valve, comprising:

the valve pipe (10), the valve pipe (10) has a plurality of concave structures arranged at intervals;

the valve seat (20), the valve seat (20) is fixed in the valve tube (10), and the middle part of the valve seat (20) is provided with a through hole (21);

a valve needle (30), the valve needle (30) being movably mounted in the valve tube (10), the valve needle (30) being at least partially located in the via hole (21), inner walls of the plurality of concave structures forming a limit for the valve needle (30), the concave structures forming a fluid channel therebetween;

the throttling valve further comprises a sealing head (40) and an elastic piece (50), the sealing head (40) is fixed in the valve pipe (10), a fluid channel is formed between the sealing head (40) and the valve pipe (10), and the elastic piece (50) is arranged between the sealing head (40) and the valve needle (30);

the throttling valve further comprises a support frame (60), wherein the support frame (60) is fixed on the valve seat (20) and is matched with the valve needle (30) to enable the valve needle (30) to have a gap with the valve seat (20).

2. The throttling valve according to claim 1, characterized in that the female structure comprises a plurality of inner grooves extending in the axial direction of the valve tube (10).

3. The throttling valve according to claim 2, characterized in that the plurality of inner grooves are arranged uniformly in the circumferential direction of the valve tube (10).

4. The throttling valve according to claim 1, characterized in that the valve needle (30) comprises a straight rod section (31) and a conical rod section (32) connected to each other, the conical rod section (32) cooperating with the support frame (60), the straight rod section (31) cooperating with the resilient member (50).

5. The throttling valve according to claim 4, characterized in that the support bracket (60) comprises a leg (61) and a stop plate (62) with a stop hole (63), a first end of the leg (61) is mounted on the valve seat (20) for cooperation, the stop plate (62) is integrally formed on a second end of the leg (61), and the tapered rod section (32) passes through the stop hole (63) and into the through hole (21).

6. The throttling valve according to claim 1, characterized in that the circumferential outer wall of the head (40) has a first groove, and the valve tube (10) has a first indenting structure cooperating with the first groove to fix the head (40).

7. The choke valve according to claim 1, characterized in that the circumferential outer wall of the valve seat (20) has a second groove, the valve tube (10) having a second indenting structure cooperating with the second groove for fixing the valve seat (20).

8. A refrigerating apparatus comprising an apparatus main body and a throttle valve provided on the apparatus main body, characterized in that the throttle valve is the throttle valve recited in any one of claims 1 to 7.

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