Stop valve and air conditioning system

Abstract

The utility model relates to the technical field of stop valves, in particular to a stop valve and an air conditioning system. The stop valve comprises a valve body, a connector, a nut and a mounting flange, the mounting flange is arranged at one axial end of the valve body and connected with the valve body, one end of the connector is connected to the peripheral side of the valve body, and the other end of the connector is in threaded connection with the nut. An operation part is arranged on the periphery of the valve body, the operation part is arranged at the end, far away from the mounting flange in the axial direction, of the valve body, the operation part comprises two operation surfaces oppositely arranged on the two radial sides of the valve body, the operation surfaces are planes, and the two operation surfaces are arranged in parallel. The operation face can be matched with an external tool in an abutting mode so as to clamp and position the valve body. According to the stop valve and the air conditioning system, the problem that when a nut of an existing stop valve is tightened through a single wrench, a valve body is prone to deformation or cracking is solved.

Description

Technical Field

[0001] The present application relates to the technical field of globe valves, and in particular, to a globe valve and an air conditioning system. Background Art

[0002] Globe valves are often provided in an air conditioning system to control the on-off of refrigerant and the like. The globe valve includes a valve body, a connector, and a nut. One end of the connector is connected to the periphery of the valve body, and the other end is in threaded cooperation with the nut for the assembly between structures such as a pipe connection or a valve core and the valve body.

[0003] In the related art, when assembling the globe valve, the valve body is often fixed to the air conditioning mounting plate through a mounting flange first, and then the nut and the connector are tightened by a wrench. However, in conventional operations, a single wrench is generally used to operate the nut connected to the connector. Thus, during the tightening process, the lateral shear force received at the connection between the valve body and the mounting flange is relatively large, easily causing problems such as deformation and cracking of the valve body, greatly increasing the probability of refrigerant leakage. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a globe valve and an air conditioning system to solve the problem that the existing globe valve is prone to valve body deformation or cracking when the nut is tightened by a single wrench.

[0005] The present application provides a globe valve, including a valve body, a connector, a nut, and a mounting flange. The mounting flange is provided at one end of the valve body in the axial direction and is connected to the valve body. One end of the connector is connected to the periphery of the valve body, and the other end is in threaded connection with the nut. An operation portion is provided on the outer periphery of the valve body. The operation portion is provided at one end of the valve body along the axial direction away from the mounting flange. Moreover, the operation portion includes two operation surfaces oppositely provided on both sides in the radial direction of the valve body. The operation surfaces are flat surfaces, and the two operation surfaces are arranged in parallel. Wherein, the operation surfaces can be in abutting cooperation with an external tool to clamp and position the valve body.

[0006] In one embodiment, the axis of the connector is parallel to the operation surface. It can be understood that such a setting can reduce the probability of interference between two wrenches.

[0007] In one embodiment, the number of the operation portions is multiple, and the operation surfaces on the multiple operation portions are adjacent or spaced along the circumferential direction of the valve body. It can be understood that such a setting makes the cooperation between the wrench and the operation surface more flexible.

[0008] In one embodiment, the shape of the operation surface is polygonal, circular, elliptical, or irregular. It can be understood that such a setting facilitates the machining of the operation surface.

[0009] In one embodiment, the operating part includes two operating platforms. One end of the operating platform is connected to the valve body, and the other end at least partially protrudes from the circumferential surface of the valve body. Among them, the end face of the operating platform far from the valve body forms the operating surface; alternatively, the operating platform is at least partially recessed in the circumferential surface of the valve body, and the end face of the operating platform close to the valve body forms the operating surface. It can be understood that with such a setting, the structural strength of the valve body can be improved, and the material cost of the valve body can be reduced.

[0010] In one embodiment, at least part of the edge of the operating surface is in an arc transition. It can be understood that with such a setting, it is convenient for the processing of the operating platform.

[0011] In one embodiment, the operating platform and the valve body are of an integrally formed structure. It can be understood that with such a setting, the connection strength between the operating platform and the valve body can be improved.

[0012] In one embodiment, the stop valve further includes an end cap. One end of the end cap extends into the valve body, and the other end abuts against the end of the valve body and is hermetically connected to the valve body. It can be understood that with such a setting, it can protect the components inside the valve body and improve safety.

[0013] In one embodiment, along the axial direction of the valve body, the projection of the valve body can cover the projection of the end cap. It can be understood that with such a setting, it can avoid interference with the wrench caused by the setting of the end cap.

[0014] The present application also provides an air conditioning system, which is characterized by including the stop valve according to any one of the above embodiments.

[0015] Compared with the prior art, the stop valve and the air conditioning system provided by the present application set an operating part at one end of the valve body far from the mounting flange, and utilize two mutually parallel operating surfaces on the operating part to add a force application point on the valve body, which is beneficial to cooperate with the corresponding structure on the external tool, so as to realize the clamping of the valve body. In this way, both ends of the axis of the valve body are stressed, effectively improving the stress stability of the valve body, thereby avoiding the phenomenon of deformation and cracking at the connection between the valve body and the mounting flange caused by the torsional moment applied to the valve body during the tightening of the nut, thus greatly improving the use safety of the stop valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Structural schematic diagram of a globe valve according to an embodiment provided by the present application;

[0018] Figure 2 Cross-sectional view of a globe valve according to an embodiment provided by the present application;

[0019] Figure 3 Schematic diagram of the cooperation between a globe valve and a wrench according to an embodiment provided by the present application;

[0020] Figure 4 Structural schematic diagram of a globe valve according to another embodiment provided by the present application;

[0021] Figure 5 Structural schematic diagram of a globe valve according to still another embodiment provided by the present application.

[0022] The meanings represented by each symbol in the figure are as follows:

[0023] 100, globe valve; 10, valve body; 101, valve cavity; 102, valve port; 11, operating part; 111, operating table; 1111, operating surface; 12, joint; 13, mounting flange; 20, nut; 30, end cover; 40, valve core; 50, valve stem core; 200, wrench. Detailed implementation manners

[0024] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe in detail the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0025] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] In this application, unless otherwise clearly specified and defined, the first feature may be in direct contact with the second feature or in indirect contact with the second feature through an intermediate medium when the first feature is "on" or "under" the second feature. Moreover, when the first feature is "above", "over" or "on top of" the second feature, it may be directly above or obliquely above the second feature, or merely indicate that the first feature has a higher horizontal height than the second feature. When the first feature is "below", "beneath" or "underneath" the second feature, it may be directly below or obliquely below the second feature, or merely indicate that the first feature has a lower horizontal height than the second feature.

[0028] Unless otherwise defined, all technical and scientific terms used in the description of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the description of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" used in the description of this application includes any and all combinations of one or more of the related listed items.

[0029] In an air-conditioning system, a stop valve is often provided to control the on / off of refrigerant and the like by using the stop valve. The stop valve includes a valve body, a connector and a nut. One end of the connector is connected to the circumferential side of the valve body, and the other end is in threaded cooperation with the nut, and is used for the assembly between structures such as a connecting pipe or a valve core and the valve body.

[0030] In the related art, when assembling the stop valve, the valve body is often first fixed to the air-conditioning mounting plate through a mounting flange, and then the nut and the connector are tightened by a wrench. However, in conventional operations, a single wrench is generally used to operate the nut connected to the connector. In this way, during the tightening process, the lateral shear force received at the connection between the valve body and the mounting flange is relatively large, which easily causes problems such as deformation and cracking of the valve body, greatly increasing the probability of refrigerant leakage.

[0031] Please refer to Figures 1 - 5, to solve the problem that the existing globe valve is prone to cause deformation or cracking of the valve body when tightening the nut with a single wrench, the present application provides a globe valve 100. The globe valve 100 includes a valve body 10, a joint 12, a nut 20, and a mounting flange 13. The mounting flange 13 is provided at one end of the valve body 10 in the axial direction and is connected to the valve body 10. One end of the joint 12 is connected to the circumferential side of the valve body 10, and the other end is threadedly connected to the nut 20. Among them, the mounting flange 13 is used to fix the globe valve 100 to the air conditioner mounting plate, and the cooperation of the joint 12 and the nut 20 can realize the installation of the valve core 50 or the connecting pipe, etc.

[0032] Specifically, the present application provides two joints 12, and the two joints 12 are relatively arranged on both sides of the valve body 10 along its radial direction. And, one of the joints 12 is used to install the valve core 50, and the other joint 12 is used to install the connecting pipe. Among them, the number of nuts 20 is set in one-to-one correspondence with the number of joints 12.

[0033] Please refer to Figure 1 and Figure 3 , in the present application, an operation part 11 is provided on the outer periphery of the valve body 10. The operation part 11 is provided at one end of the valve body 10 in the axial direction away from the mounting flange 13. And, the operation part 11 includes two operation surfaces 1111 relatively arranged on both sides of the valve body 10 in the radial direction. The operation surfaces 1111 are flat surfaces, and the two operation surfaces 1111 are arranged in parallel. Among them, the operation surfaces 1111 can be in contact and cooperate with an external tool (usually a wrench 200) to clamp and position the valve body 10.

[0034] It can be understood that, in the present application, by providing the operation part 11 at one end of the valve body 10 away from the mounting flange 13 and using the two mutually parallel operation surfaces 1111 on the operation part 11, new force application points are added on the valve body 10, which is beneficial to cooperate with the corresponding structure on the external tool, so as to realize the clamping of the valve body 10. In this way, forces are applied at both ends of the axis of the valve body 10, effectively improving the force stability of the valve body 10, thus avoiding the phenomenon of deformation and cracking at the connection between the valve body 10 and the mounting flange 13 caused by the torsional moment applied to the valve body 10 during the tightening process of the nut 20, thereby greatly improving the use safety of the globe valve 100.

[0035] Among them, when the wrench 200 cooperates with the operation part 11, it is preferably along the axial direction of the valve body 10 and is sleeved on the operation part 11 from the end of the valve body 10 away from the mounting flange 13 to further improve the force stability.

[0036] In one embodiment, as Figure 1As shown, the number of operating parts 11 is one. At this time, the axis of the joint 12 is parallel to the operating surface 1111. In this way, the wrench 200 that positions and clamps the valve body 10 and the wrench 200 for tightening the nut 20 are arranged substantially parallel to each other, thereby reducing the probability of interference between the two wrenches 200 and further improving the reliability when the nut 20 is tightened.

[0037] Further, in one embodiment, as Figure 4 shown, the number of operating parts 11 is multiple, and the operating surfaces 1111 on the multiple operating parts 11 are adjacent to or spaced apart from each other along the circumferential direction of the valve body 10. In this way, the cooperation between the wrench 200 and the operating surface 1111 is more flexible, and the structural strength of the valve body 10 can be further improved.

[0038] In one embodiment, as Figure 2 shown, the stop valve 100 further includes a valve core 40. The valve body 10 is provided with a valve cavity 101 and a valve port 102 communicating with the valve cavity 101. The valve core 40 is movably installed in the valve cavity 101 and is used to open or close the valve port 102, so as to realize the circulation or cutoff of the refrigerant.

[0039] Further, in one embodiment, as Figure 1 and Figure 2 shown, the stop valve 100 further includes an end cap 30. The end cap 30 is provided at one end of the valve body 10 away from the mounting flange 13, and one end of the end cap 30 extends into the valve body 10, and the other end abuts against the end of the valve body 10 and is hermetically connected to the valve body 10. In this way, the end cap 30 can protect the components inside the valve body 10, thereby improving safety.

[0040] Exemplarily, the end cap 30 can play a role in protecting and stopping the valve core 40, preventing the valve core 40 from detaching from the valve body 10 during the movement process, thereby improving the safety and reliability of the valve core 40.

[0041] Since the wrench 200 is sleeved on the valve body 10 from the end of the valve body 10 and cooperates with the operating part 11 on the valve body 10, at this time, in order to avoid the interference of the setting of the end cap 30 on the wrench 200, in one embodiment of the present application, along the axial direction of the valve body 10, the projection of the valve body 10 can cover the projection of the end cap 30. That is, the maximum outer diameter of the end cap 30 is smaller than the outer diameter of the valve body 10, and the end cap 30 forms an inner plug structure, which makes the movement of the wrench 200 smoother.

[0042] In one embodiment, as Figure 1As shown, the operation part 11 includes two operation platforms 111. One end of the operation platform 111 is connected to the valve body 10, and the other end at least partially protrudes from the outer side surface of the valve body 10. Among them, the end surface of the operation platform 111 away from the valve body 10 forms an operation surface 1111. In this way, by adding the operation platform 111 structure on the valve body 10 and forming the operation surface 1111 through the end surface of the operation platform 111, compared with directly machining the operation surface 1111 on the valve body 10, the structural strength of the valve body 10 can be improved, the probability of the valve body 10 being deformed under force can be further reduced, and the reliability of the cooperation between the valve body 10 and the wrench 200 can be improved. Moreover, with the improvement of the strength of the valve body 10, under the same strength requirement, the size of the valve body 10 can be correspondingly reduced, thereby reducing the material cost of the valve body 10.

[0043] In other embodiments, the operation platform 111 is at least partially recessed in the circumferential side surface of the valve body 10. Among them, the end surface of the operation platform 111 close to the valve body 10 forms an operation surface 1111. That is to say, the operation platform 111 is configured as a groove structure to facilitate the positioning and cooperation with the wrench 200.

[0044] In this application, the structure of setting the operation platform 111 to form the operation surface 1111 is specifically described herein.

[0045] In one embodiment, the operation platform 111 and the valve body 10 are integrally formed structures to further improve the connection strength between the operation platform 111 and the valve body 10 and avoid breakage when the operation platform 111 cooperates with the wrench 200.

[0046] Specifically, the operation platform 111 and the valve body 10 are integrally formed by stamping. In addition, the protruding operation platform 111 can also be connected to the valve body 10 by welding or the like, and the grooved operation platform 111 can also be formed by machining such as cutting.

[0047] To facilitate the machining and forming of the operation platform 111, in one embodiment, at least part of the edge of the operation surface 1111 is in an arc transition to effectively reduce the stamping forming difficulty of the operation platform 111 through the arc design.

[0048] Specifically, when the number of the operation parts 11 is one, the arc is arranged between the operation surface 1111 and the outer side surface of the valve body 10 to achieve a smooth transition connection between the operation surface 1111 and the outer side surface of the valve body 10.

[0049] When the number of the operation parts 11 is multiple, the operation surfaces 1111 on the adjacent operation parts 11 can be arranged at intervals, which is similar to the structure when the number of the operation parts 11 is one. At this time, the operation surface 1111 and the outer side surface of the valve body 10 can be smoothly connected through an arc. Of course, the operation surfaces 1111 on the adjacent operation parts 11 can also be adjacent to each other. At this time, it can be set that the adjacent two operation surfaces 1111 are smoothly connected through an arc. In this way, it is beneficial to the processing of the operation surface 1111 and the operation platform 111.

[0050] In addition, the shape of the operation surface 1111 can also be reasonably set according to actual needs. Exemplarily, the shape of the operation surface 1111 can be set as Figure 1 the rectangle shown, or as Figure 5 the ellipse shown. In this way, the structure of the operation surface 1111 is simple, convenient for processing, and can effectively reduce the processing difficulty of the operation surface 1111.

[0051] However, it is not limited thereto. In other embodiments, the shape of the operation surface 1111 can also be circular, or polygons such as triangles and pentagons, or special shapes composed of combinations of semi - circles and rectangles, etc.

[0052] This application also provides an air - conditioning system, which is characterized in that it includes an air - conditioning installation plate and the stop valve 100 in any one of the above embodiments. The stop valve 100 is fixed to the air - conditioning installation plate through the installation flange 13.

[0053] The technical features of the above - described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above - described embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as the scope recorded in this specification.

[0054] The above - described embodiments only represent several implementation manners of this application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several deformations and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the patent protection scope of this application should be subject to the appended claims.

Claims

1. A globe valve, comprising a valve body (10), a joint (12), a nut (20) and a mounting flange (13). The mounting flange (13) is provided at one axial end of the valve body (10) and is connected to the valve body (10). One end of the joint (12) is connected to the circumferential side of the valve body (10), and the other end is threadedly connected to the nut (20). It is characterized in that An operating part (11) is provided on the outer circumference of the valve body (10). The operating part (11) is provided at one end of the valve body (10) axially away from the mounting flange (13). And the operating part (11) includes two operating surfaces (1111) oppositely provided on both radial sides of the valve body (10). The operating surfaces (1111) are flat surfaces, and the two operating surfaces (1111) are arranged in parallel. Wherein, the operating surface (1111) can be abutted and cooperated with an external tool to clamp and position the valve body (10).

2. The globe valve according to claim 1, wherein The axis of the joint (12) is parallel to the operating surface (1111).

3. The globe valve according to claim 1, characterized in that, The number of the operating parts (11) is multiple, and the operating surfaces (1111) on the multiple operating parts (11) are adjacent or spaced along the circumferential direction of the valve body (10).

4. The globe valve according to claim 1, characterized in that, The shape of the operating surface (1111) is polygonal, circular, oval or irregular.

5. The globe valve according to any one of claims 1-4, characterized in that, The operating part (11) includes two operating platforms (111). One end of the operating platform (111) is connected to the valve body (10), and the other end at least partially protrudes from the circumferential surface of the valve body (10). Wherein, the end surface of the operating platform (111) away from the valve body (10) forms the operating surface (1111). Or, the operating platform (111) is at least partially recessed in the circumferential surface of the valve body (10). Wherein, the end surface of the operating platform (111) close to the valve body (10) forms the operating surface (1111).

6. The globe valve according to claim 5, characterized in that, At least part of the edge of the operating surface (1111) is in an arc transition.

7. The globe valve according to claim 5, characterized in that, The operating platform (111) and the valve body (10) are of an integrally formed structure.

8. The globe valve according to claim 1, characterized in that, The globe valve further includes an end cover (30). One end of the end cover (30) extends into the valve body (10), and the other end abuts against the end of the valve body (10) and is hermetically connected to the valve body (10).

9. The globe valve according to claim 8, wherein, Axially along the valve body (10), the projection of the valve body (10) can cover the projection of the end cover (30).

10. An air conditioning system, characterized in that, Including the globe valve according to any one of claims 1-9.

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