Valve body assembly and ball valve

Abstract

The valve body assembly comprises a valve body, an end cover and a first connecting pipe, and a connecting section is formed at the end, in the axis direction of the valve body, of the valve body; the end cover comprises an end cover main body and a sleeving part, the sleeving part is arranged on the end face of one side of the end cover main body and connected with the end cover main body, and the end cover main body is contained in the connecting section and forms a first welding part with the connecting section; the first connecting pipe is matched with the sleeving part in an inserted mode and forms a second welding part with the sleeving part, and the first connecting pipe can communicate with the interior of the connecting section through the end cover body. Therefore, on one hand, the end cover, the valve body and the first connecting pipe can be welded at a time, and the effects of improving the welding efficiency, improving the assembling efficiency of the valve body assembly and reducing the manufacturing cost are achieved; and on the other hand, the welding position between the end cover main body and the valve body can be hidden, the appearance quality of the ball valve with the valve body assembly is improved, and the product quality of the ball valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to refrigeration or air conditioning system related technical field, especially, relate to a valve body assembly and ball valve. BACKGROUND

[0002] Ball valve is often used in refrigeration or air conditioning system, and is used for controlling the cut-off and conduction of refrigerant flow.

[0003] At present, the existing ball valve includes a valve body, an end cover and a connecting pipe. The connecting pipe is first welded to the end cover by high-frequency welding. After the welding is completed, the end cover part is assembled into the valve body. The secondary welding between the end cover and the valve body is realized by argon arc welding. This results in a complex preparation process. In order to not affect the overall appearance of the ball valve, a polishing process is needed to remove the blackened parts generated during the welding of the end cover and the valve body. This not only increases the labor intensity of workers, reduces processing efficiency and increases manufacturing cost, but also affects the quality of the product. SUMMARY

[0004] Therefore, it is necessary to provide a valve body assembly and a ball valve for solving the above technical problems.

[0005] A valve body assembly includes:

[0006] A valve body, one end of the valve body is formed with a connecting section along the axial direction of the valve body;

[0007] An end cover including an end cover body and a sleeve part, the sleeve part is arranged on one side end face of the end cover body and connected with the end cover body, the end cover body is accommodated in the connecting section and forms a first welding part with the connecting section;

[0008] A first connecting pipe is inserted into the sleeve part and forms a second welding part with the sleeve part, and the first connecting pipe can communicate with the inside of the end cover body and the connecting section.

[0009] It can be understood that the end cover body of the end cover is entirely accommodated in the connecting section of the valve body. In this way, the welding part between the end cover and the valve body is arranged at the side surface position of the valve body. In this way, on the one hand, the end cover, the valve body and the first connecting pipe can be welded at one time, which improves the welding efficiency, improves the assembly efficiency of the valve body assembly and reduces the manufacturing cost. On the other hand, the welding position between the end cover body and the valve body can be hidden, which improves the appearance quality of the ball valve with the valve body assembly and improves the quality of the ball valve product.

[0010] In one embodiment, the first welding part and the second welding part are welded at one time.

[0011] It can be understood that the first welding part between the end cover body and the connecting segment, the sleeve joint part and the second connecting pipe are welded at one time, so that the welding efficiency between the end cover and the valve body and the first connecting pipe is improved, thereby improving the assembly efficiency of the valve body assembly.

[0012] In one of the embodiments, the sleeve joint part and the first connecting pipe are welded by flame welding, furnace welding, high-frequency welding or laser welding.

[0013] In one of the embodiments, the connecting segment has a side surface along the axial direction of the valve body.

[0014] The side surface is flush with the side end surface, or the side surface is not flush with the side end surface.

[0015] It can be understood that when the side end surface of the end cover body is flush with the side surface of the connecting segment, the end cover body and the connecting segment have a larger working space during welding operation, so that subsequent welding operation between the end cover body and the connecting segment is facilitated.

[0016] In one of the embodiments, the first welding part formed between the end cover body and the connecting segment has a welding groove for bearing a welding ring.

[0017] It can be understood that the welding groove enclosed by the end cover body and the connecting segment is used to bear the welding ring used during welding of the two, so that the welding operation between the end cover body and the connecting segment is further facilitated.

[0018] In one of the embodiments, a first limiting part is formed between the end cover body and the connecting segment, and the first limiting part is used to limit the assembly position between the end cover body and the connecting segment during plug-in cooperation of the two.

[0019] And / or, a second limiting part is formed between the sleeve joint part and the first connecting pipe, and the second limiting part is used to limit the assembly position between the first connecting pipe and the sleeve joint part during plug-in cooperation of the two.

[0020] It can be understood that the external interference is used to limit the assembly position during plug-in cooperation between the end cover and the valve body and / or the first connecting pipe, so that the assembly between the end cover and the valve body and / or the first connecting pipe is facilitated, and the accuracy of the assembly position is ensured.

[0021] In one of the embodiments, a mounting foot is further formed on the valve body, and the valve body assembly can be mounted and fixed through the mounting foot.

[0022] It can be understood that the installation foot is used to realize the installation and fixation of the ball valve with the valve body assembly in the preset position, so as to facilitate the installation of the ball valve with the valve body assembly.

[0023] In one of the embodiments, the number of installation feet is configured to be multiple, and the multiple installation feet are independently arranged.

[0024] It can be understood that the multiple installation feet are independently arranged, so that the hollow space is formed between the multiple installation feet, so that the valve body has the advantages of reducing the weight of the valve body, reducing the material consumption, and thus reducing the manufacturing cost of the ball valve with the valve body assembly.

[0025] In one of the embodiments, the valve body is connected and communicated with a second connecting pipe.

[0026] The second connecting pipe and the first connecting pipe are arranged on two opposite sides of the valve body.

[0027] In addition, the application also provides a ball valve comprising the valve body assembly.

[0028] Due to the application of the above technical scheme, the application has the following advantages compared with the prior art.

[0029] The valve body assembly and the ball valve of the application can accommodate the end cap body of the end cap in the connecting section of the valve body, so that the welding position between the end cap and the valve body is arranged on the side surface of the valve body. In this way, on the one hand, the connection and fixation between the end cap and the valve body and the connection and fixation between the end cap and the first connecting pipe can be completed by one-time welding, which improves the welding efficiency, improves the assembly efficiency of the valve body assembly, and reduces the manufacturing cost. On the other hand, by inserting the end cap body into the valve body, the welding position between the end cap body and the valve body can be hidden, which improves the appearance quality of the ball valve with the valve body assembly and improves the product quality of the ball valve. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 The structure diagram of the valve body assembly provided by an embodiment of the application.

[0032] Figure 2 The cross-sectional view of the valve body assembly provided by an embodiment of the application.

[0033] Figure 3 For Figure 2 Enlarged view of the middle P part.

[0034] Figure 4 For the structure of the valve body in this application.

[0035] Reference signs: 100, valve body assembly; 10, valve body; 11, connecting section; 111, side surface; 12, mounting foot; 121, threaded hole; 20, end cover; 21, end cover body; 211, side end surface; 22, sleeve joint part; 30, first connecting pipe; 40, second connecting pipe; 101, first limiting part; 102, second limiting part; 110, welding bevel. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] It should be noted that when an element is referred to as "provided on" another element, it can be directly provided on the other element or there can be a middle element. When an element is referred to as "provided on" another element, it can be directly provided on the other element or there can be a middle element. When an element is referred to as "fixed on" another element, it can be directly fixed on the other element or there can be a middle element.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application only for the purpose of describing specific embodiments and is not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] The valve body assembly 100 claimed in the present application is applied to a ball valve of an air conditioning system.

[0040] As Figure 1 , Figure 2 and Figure 4As shown, the valve body assembly 100 provided by an embodiment of the present application includes a valve body 10, an end cover 20, and a first connecting pipe 30. The valve body 10 is formed with a connecting section 11 on one end thereof in the axial direction of the valve body 10. The end cover 20 includes an end cover body 21 and a sleeve joint 22. The sleeve joint 22 is arranged on one side end surface 211 of the end cover body 21 and forms a first welding portion with the end cover body 21. The end cover body 21 is accommodated in the connecting section 11 and forms a second welding portion with the connecting section 11. The first connecting pipe 30 is inserted into the sleeve joint 22 and welded with the sleeve joint 22. The first connecting pipe 30 can be in communication with the interior of the end cover body 21 and the connecting section 11.

[0041] As can be seen from the above, the valve body assembly 100 of the present application accommodates the entire end cover body 21 of the end cover 20 in the connecting section 11 of the valve body 10. In this way, the welding portion between the end cover 20 and the valve body 10 is arranged on the side surface of the connecting section 11 of the valve body 10. In this way, on the one hand, the welding between the end cover 20, the valve body 10, and the first connecting pipe 30 can be completed at one time, thereby improving the welding efficiency, improving the assembly efficiency of the valve body assembly 100, and reducing the manufacturing cost. On the other hand, the welding position between the end cover body 21 and the valve body 10 can be hidden, thereby improving the appearance quality of the ball valve having the valve body assembly 100 and improving the product quality of the ball valve.

[0042] As shown in Figure 1 , Figure 2 and Figure 4 , in an embodiment, the valve body 10 is further formed with a mounting foot 12, and the valve body assembly 100 can be mounted and fixed through the mounting foot 12. Specifically, the mounting foot 12 is used for mounting and fixing the ball valve having the valve body assembly 100 with an external structure. For example, in some application scenarios, the ball valve needs to be fixed in position. The mounting foot 12 arranged on the surface of the valve body can be fixedly connected with the position to be mounted, thereby facilitating the installation of the ball valve in a predetermined position in a refrigeration system.

[0043] Specifically, as shown in Figure 1 , Figure 2 and Figure 4 , in some embodiments, the mounting foot 12 is provided with a threaded hole 121 arranged on one end of the mounting foot 12 in the length direction of the mounting foot 12. The threaded hole 121 is used for inserting an external fixing member (not shown). That is, the ball valve having the valve body assembly 100 can be mounted and fixed by inserting the fixing member into the threaded hole 121 of the mounting foot 12. In this way, the installation and application of the ball valve in a predetermined position can be facilitated. Here, the mounting foot 12 can be integrally formed by die casting on the valve body 10.

[0044] As shown in Figure 4As shown in the drawings, in an embodiment, the number of mounting feet 12 is configured to be multiple, and the multiple mounting feet 12 are independently arranged. That is, the multiple mounting feet 12 form hollow spaces therebetween, so that the valve body 10 has reduced weight and material usage on the basis of meeting the field installation requirements, thereby realizing the cost reduction of the ball valve manufactured by using the valve assembly 100. Here, the number of mounting feet 12 is configured to be two. It can be understood that in other embodiments, the number of mounting feet 12 can also be configured to be three, four, or even more, which will not be described here.

[0045] As shown in the drawings, Figure 2 In an embodiment, a first limiting portion 101 is formed between the end cover body 21 and the connecting section 11, and is used to limit the assembly position between the end cover body 21 and the connecting section 11 when they are inserted and fitted; a second limiting portion 102 is formed between the sleeve portion 22 and the first connecting pipe 30, and is used to limit the assembly position between the sleeve portion 22 and the first connecting pipe 30 when they are inserted and fitted, so as to facilitate the assembly between the end cover 20 and the valve body 10 and between the end cover 20 and the first connecting pipe 30, and ensure the accuracy of the assembly position. Here, the end cover body 21 and the connecting section 11, and the sleeve portion 22 and the first connecting pipe 30 can be assembled and limited by position interference, respectively.

[0046] It should be noted that the first limiting portion 101 can be realized by the collision between the two step surfaces matched between the end cover body 21 and the connecting section 11; similarly, the second limiting portion 102 can also be realized by the collision between the two step surfaces arranged between the sleeve portion 22 and the first connecting pipe 30, which will not be described here.

[0047] As shown in the drawings, Figure 1 , Figure 2 In an embodiment, the end cover body 21 and the connecting section 11, and the sleeve portion 22 and the first connecting pipe 30 are welded by one-time welding process. That is, the end cover body 21 and the connecting section 11, and the sleeve portion 22 and the first connecting pipe 30 are welded by one-time welding, so as to improve the welding efficiency when the end cover 20 and the valve body 10 and the first connecting pipe 30 are welded, thereby having the effect of improving the assembly efficiency of the valve assembly 100. Here, the sleeve portion 22 and the first connecting pipe 30 are welded by flame welding, furnace welding, high-frequency welding, or laser welding.

[0048] As shown in the drawings, Figure 3As shown in the drawings, in an embodiment, along the axial direction of the valve body 10, the connecting section 11 has a side surface 111 which is flush with the side end surface 211, so that the end cover body 21 and the connecting section 11 have a large working space during the welding operation, which facilitates the subsequent welding operation between the end cover body 21 and the connecting section 11. It can be understood that in other embodiments, the side surface 111 and the side end surface 211 can also be not flush.

[0049] As shown in the drawings, Figure 3 In an embodiment, a first welding portion having a welding groove 110 is formed between the end cover body 21 and the connecting section 11. In actual production, the welding groove 110 is used to carry a welding ring (not shown in the drawings), and the molten welding liquid of the welding ring penetrates into the space between the end cover body and the connecting section through the welding groove 110, and the welding groove 110 also has a containing space for containing the welding liquid, thereby improving the welding strength of the two. When welding the end cover body 21 and the connecting section 11, only the molten welding ring placed in the welding groove 110 needs to be penetrated and sealed, which further facilitates the welding operation between the end cover body 21 and the connecting section 11.

[0050] As shown in the drawings, Figure 1 , Figure 2 In an embodiment, the valve body 10 is connected with a second connecting pipe 40; wherein the second connecting pipe 40 and the first connecting pipe 30 are arranged on two opposite sides of the valve body 10.

[0051] In addition, the application also provides a ball valve comprising the valve body assembly 100.

[0052] The technical features of the above embodiments can be combined in any way. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0053] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation of the present application. Any appropriate changes and variations to the above embodiments within the spirit and scope of the present application are within the scope of the present application.

Claims

1. A valve body assembly, characterized in that, The valve body assembly (100) includes: A valve body (10) has a connecting section (11) formed at one end along the axial direction of the valve body (10); End cap (20) includes end cap body (21) and sleeve part (22), the sleeve part (22) is disposed on the side end face (211) of the end cap body (21) and connected to the end cap body (21), the end cap body (21) is housed in the connecting section (11) and forms a first welded part with the connecting section (11); The first connector (30) is inserted into the sleeve (22) and forms a second welded part with the sleeve (22), and the first connector (30) can communicate with the interior of the connecting section (11) through the end cap body (21).

2. The valve body assembly according to claim 1, characterized in that, The first welding part and the second welding part are welded together in one step.

3. The valve body assembly according to claim 1, characterized in that, The sleeve (22) is connected to the first connecting pipe (30) by flame welding, furnace welding, high frequency welding or laser welding.

4. The valve body assembly according to claim 1, characterized in that, Along the axial direction of the valve body (10), the connecting section (11) has a side (111); The side surface (111) is flush with the side end surface (211); or, the side surface (111) is not flush with the side end surface (211).

5. The valve body assembly according to claim 1, characterized in that, The first weld portion formed between the end cap body (21) and the connecting section (11) has a weld bevel (110).

6. The valve body assembly according to claim 1, characterized in that, A first limiting part (101) is formed between the end cap body (21) and the connecting section (11). The first limiting part (101) is used to limit the assembly position between the end cap body (21) and the connecting section (11) when they are inserted and engaged. And / or, a second limiting part (102) is formed between the socket (22) and the first tube (30), the second limiting part (102) being used to limit the assembly position between the first tube (30) and the socket (22) when they are inserted and engaged.

7. The valve body assembly according to claim 1, characterized in that, The valve body (10) also has mounting feet (12), and the valve body assembly (100) can be mounted and fixed by the mounting feet (12).

8. The valve body assembly according to claim 7, characterized in that, The number of mounting feet (12) is configured to be multiple, and the multiple mounting feet (12) are spaced apart.

9. The valve body assembly according to claim 1, characterized in that, The valve body (10) is connected to and communicates with a second connecting pipe (40); The second connector (40) and the first connector (30) are arranged on opposite sides of the valve body (10).

10. A ball valve, characterized in that, The valve body assembly (100) includes any one of claims 1 to 9.

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