A valve body shell is formed by stamping and drawing and is split into two parts which are welded together

Abstract

The utility model relates to valve body shell technical field, concretely is a stamping, stretch forming split type welding assembly's valve body shell, including water inlet flange, water outlet flan, the water inlet flange and water outlet flan all include the annular groove flange, circular flange body and the outer turning ring circular flange of being provided with three kinds of flange form of circular notch, flat mouth and outer turning, and the annular groove flange, circular flange body and outer turning ring circular flan all are divided into two kinds of standard form of circular flange and circular flange with notch, the utility model has the advantages of multi-component combination welding, through the welding connection mode of many flanges makes the valve body shell more suitable, welding firm easy to assemble, production process and process are more environmental protection and do not have the advantages such as pollution discharge, solve the connecting drawbacks of existing water valve, matching and the limitation lead to in the installation process, and the problem of complicated production procedure and pollution emission in casting and forging process.

Description

Technical Field

[0001] This utility model relates to the field of valve body shell technology, specifically a stamped, stretched, split-type welded valve body shell. Background Technology

[0002] Water valves are commonly used water control devices and equipment for controlling water flow. Currently, most valves on the market are made by one-piece casting or welding. Water valves are relatively precise water control devices. Many water valves are currently manufactured using one-piece molding and overall welding processes, which makes the production process complex. Since the surface of the casting process needs to go through sand casting, electrolysis and other processes, it involves pollution problems, sewage discharge, and is not environmentally friendly. Moreover, the multiple processing steps increase time costs and cannot improve production efficiency, facing a variety of problems arising from technical drawbacks. To address this, we propose a valve body shell that is stamped, stretched, formed, and welded together in a separate manner. Utility Model Content

[0003] The purpose of this utility model is to provide a valve body shell that is stamped, stretched, formed, and welded in a split manner. It has the advantages of multi-part combination welding, multi-flange welding connection to make the valve body shell more versatile, strong welding and easy assembly, and more environmentally friendly production process with no pollution discharge. It solves the problems of connection drawbacks, compatibility and limitations of existing water valves that make them unsuitable for use during installation, as well as the cumbersome production process and pollution discharge in casting and forging.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a valve body shell formed by stamping and stretching, comprising an inlet flange and an outlet flange. Both the inlet flange and the outlet flange include an annular groove flange, a circular flange body, and an outward-turned circular flange, which are provided in three flange forms: circular groove, flat, and outward-turned. The annular groove flange, the circular flange body, and the outward-turned circular flange are all available in two specifications: circular flange and circular flange with notch.

[0005] Preferably, a valve core tube made of metal is provided between the inlet flange and the outlet flange, and the valve core tube is available in three specifications: cylindrical, elliptical and flat round. A connecting pipe groove is provided at the middle of the top of the valve core tube, and a cavity shell is provided at the connecting pipe groove of the valve core tube.

[0006] Preferably, the valve core tube body includes an integral valve core tube body and two segmented valve core tube bodies.

[0007] Preferably, the cavity shell includes three types of integral slotted cavity shells, closed perforated cavity shells, and semi-cavity shells. A cavity shell flange is provided on the top of the cavity shell. Screw holes are provided at the four corners of the cavity shell flange. Flange nuts are provided at the corresponding positions of the screw holes at the bottom of the cavity shell flange. The flange nuts and the cavity shell flange are of two types: movable and detachable and integrally welded. The number of flange nuts is at least four.

[0008] Preferably, the cavity shell and the cavity shell flange are formed by welding, and the top of the cavity shell flange is provided with a cavity shell cover flange connected by screws. Both the cavity shell flange and the cavity shell cover flange include three types of flanges: flat flange, eaves flange, and annular groove flange.

[0009] Preferably, the top of the cavity cover flange is provided with a cavity cover body connected thereto. Nut holes are provided at both ends of the top of the cavity cover body. A cavity cover nut seat is provided at the corresponding position of the nut hole on the inner top of the cavity cover body. The cavity cover nut seat and the cavity cover body are of two forms: movable and detachable and integrally welded.

[0010] Preferably, a valve stem is provided at the middle end of the cavity shell through a valve stem hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model separates the cavity shell and cavity shell flange, as well as the cavity shell cover and cavity shell cover flange, and welds them together using an eaves feature butt joint or embedded butt joint method. The overall welded surface is flat, smooth, burr-free, and has strong pressure resistance. The inlet flange and outlet flange are also arranged in a relatively symmetrical manner and are welded together with the valve core tube. The inlet flange and outlet flange have three forms: through hole and flat opening, annular groove, and outward turning, which meet various welding requirements and achieve various welding connection methods. The components are independent of each other, and multiple components are integrally formed by welding. The cavity shell is formed by integral stamping or integral stretching. The cavity shell is formed by integral stretching or stamping, or by semi-cavity shell stamping or stretching, which can be achieved by two processes and two forms. Compared with casting, the stamping and stretching process of this utility model is more environmentally friendly, eliminating complex processes such as sand casting and electrolysis, saving costs and being more environmentally friendly.

[0013] 2. This utility model improves the welding process of the valve control device by connecting a split flange and an integrally stretched and stamped cavity shell. It offers diverse combinations, simple and convenient manufacturing, and strong pressure resistance. The three flange configurations—flat-mouth butt welding, annular groove embedding welding, and outward-folding sleeve welding—allow for various welding methods, resulting in smoother and stronger welds. The outward-folding and annular groove embedding welding methods enhance the overall structural strength, enabling it to withstand greater water pressure. The nut seat, through split and integral welding, achieves both flexibility and strength in flange connections, avoiding the need for additional wrenches for fixing. The entire device is completed through multi-part splicing and welding, eliminating the complex processing and pollutant emissions associated with integral casting. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention;

[0015] Figure 2 This is a schematic diagram of the notched shape of the circular flange of this utility model;

[0016] Figure 3 This is a schematic diagram of the notched shape of the annular groove flange of this utility model;

[0017] Figure 4 This is a schematic diagram of the circular flange of this utility model without a notch;

[0018] Figure 5 This is a schematic diagram of the unnotched shape of the outward-facing circular flange of this utility model.

[0019] Figure 6 This is a schematic diagram of the flat flange of this utility model;

[0020] Figure 7 This is a schematic diagram of the annular groove flange of this utility model;

[0021] Figure 8 This is a schematic diagram of the eaves-turned flange of this utility model;

[0022] Figure 9 This is a schematic diagram of the integral slotted cavity shell of this utility model;

[0023] Figure 10 This is a schematic diagram of the closed-type perforated cavity shell of this utility model;

[0024] Figure 11 This is a schematic diagram of the semi-cavity shell of this utility model;

[0025] Figure 12 This is a half-section exploded view of the segmented valve core tube and cavity shell of this utility model.

[0026] In the diagram: 1. Inlet flange; 2. Outlet flange; 3. Valve core tube body; 301. Connecting pipe groove; 4. Cavity shell; 5. Cavity shell flange; 501. Bolt hole; 6. Flange nut; 7. Cavity shell cover; 8. Cavity shell cover flange; 9. Valve stem; 10. Nut hole; 11. Cavity shell cover nut; 101. Annular groove flange; 102. Circular flange body; 103. Outward-facing circular flange; 401. Integral slotted cavity shell; 402. Closed-type open cavity shell; 403. Semi-cavity shell; 5-A8. Plain flange; 5-B8. Outward-facing flange with eaves; 5-C8. Annular groove flange. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or 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 construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The components of this application, including inlet flange 1, outlet flange 2, valve core tube body 3, connecting pipe groove 301, cavity shell 4, cavity shell flange 5, bolt hole 501, flange nut 6, cavity shell cover body 7, cavity shell cover flange 8, valve stem 9, nut hole 10, cavity shell cover nut seat 11, annular groove flange 101, circular flange body 102, outward-turning circular flange 103, integral slotted cavity shell 401, closed-type open cavity shell 402, semi-cavity shell 403, flat flange 5-A8, eaves outward-turning flange 5-B8, and annular groove flange 5-C8, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0031] Example 1

[0032] Please see Figures 1-12 As shown, this utility model provides a technical solution: a valve body shell that is stamped, stretched, formed, and welded separately, including an inlet flange 1 and an outlet flange 2. The inlet flange 1 and the outlet flange 2 each include an annular groove flange 101, a circular flange body 102, and an outward-turned circular flange 103, which are provided in three flange forms: circular groove, flat, and outward-turned. The annular groove flange 101, the circular flange body 102, and the outward-turned circular flange 103 are all available in two specifications: circular flange and circular flange with notch.

[0033] In this technical solution: the inlet flange 1 and the outlet flange 2 are correspondingly set, and all structures are identical and mirror-supported, such as... Figures 2-5 As can be seen, the inlet flange 1 has two forms: a notched circular flange and a circular flange. Figure 2 and Figure 3 The notched circular flange shown has two forms: circular groove and outward flare. Figure 3 There are three states: a flat flange, a flange with a circular notch in the first form (valve core tube 3), and a flange with a circular groove. The valve core tube 3 is inserted into the circular groove, the inner diameter of which is larger than the outer diameter of the valve core tube 3. The circular groove is machined by turning. The valve core tube 3 is then welded into the circular groove of the flange opening, resulting in a stronger and more secure weld. The second state (flanged flange) connects the valve core tube 3 to the flange opening. The flange opening is outward-facing, with the outer diameter smaller than the inner diameter of the valve core tube 3. This allows the valve core tube 3 to be inserted and welded to the flange opening, resulting in a strong internal fit and support. After welding, the joint at the opening is stronger and has higher pressure resistance. The third state is a flat flange. The valve core tube 3 is inserted into the flange's circular hole and welded, further strengthening the opening and increasing its pressure resistance.

[0034] Example 2

[0035] Based on Embodiment 1, this utility model is as follows: Figures 1-12 As shown, a valve core tube 3 made of metal is provided between the inlet flange 1 and the outlet flange 2. The valve core tube 3 is available in three shapes: cylindrical, elliptical, and flattened round. A connecting groove 301 is provided at the middle of the top of the valve core tube 3. A cavity shell 4 is provided at the connecting groove 301 of the valve core tube 3. The cavity shell 4 includes three types: an integral slotted cavity shell 401, a closed-type perforated cavity shell 402, and a semi-cavity shell 403. A cavity shell flange 5 is provided on the top of the cavity shell 4. Screw holes 501 are provided at each of the four corners of the cavity shell flange 5. Flange nuts 6 are provided at corresponding positions at the bottom of the cavity shell flange 5 for each screw hole 501. The flange nuts 6 and the cavity shell flange 5 are available in two forms: movable and detachable, and integrally welded. The number of flange nuts 6 is at least four. The cavity shell 4 and the cavity shell flange 5 are welded together. The top of the cavity shell flange 5 is provided with a cavity shell cover flange 8 connected by screws. Both the cavity shell flange 5 and the cavity shell cover flange 8 include three types of flanges: flat flange 5-A8, eaves flange 5-B8, and annular groove flange 5-C8. The top of the cavity shell cover flange 8 is provided with a cavity shell cover body 7 connected to it. Nut holes 10 are opened at both ends of the top of the cavity shell cover body 7. The nut holes 10 are located at the corresponding positions of the top of the inner side of the cavity shell cover body 7, and a cavity shell cover nut seat 11 is provided. The cavity shell cover nut seat 11 and the cavity shell cover body 7 are of two types: movable and detachable and integrally welded. A valve stem 9 is provided at the middle end of the cavity shell cover body 7 through a valve stem hole.

[0036] This technical solution: (as follows) Figures 9-11 As shown, the valve core tube 3 of this utility model has a connecting groove 301, which is obtained by cutting an annular irregular shape. The connecting groove 301 is used to connect to the cavity shell 4. The cavity shell 4 has three forms: the first is formed by integral stretching or stamping, and the cavity shell 4 has a bottom groove; the second is formed by integral stretching or stamping, and the cavity shell 4 has a circular hole with a diameter larger than the outer diameter of the valve core tube 3; the third is a half-shell with a groove formed by stretching or stamping. These three forms are combined with the valve core tube 3 and welded together to form an integral connection. Figure 10 and Figure 11 The opening shown is a flat opening, used to connect to the cavity shell flange 5, as shown. Figures 6-8As shown, the flange 5 of the cavity shell has three forms of eaves. The first type of the cavity shell flange 5 is a flat design; the second type of the cavity shell flange 5 is an annular groove design; and the third type of the cavity shell flange 5 is an outward-flaring design. These three forms are adapted and welded to the opening of the cavity shell 4. The flat-mouth cavity shell flange 5 is completed by welding through a mating and butt joint with the opening of the cavity shell 4. The annular groove is set, and the outer dimension of the annular groove is larger than the outer dimension of the opening of the cavity shell 4. It is welded into shape after being inserted into the cavity shell 4. The outward-flaring flange 5-B8 has an outward-flaring dimension smaller than the inner dimension of the opening of the cavity shell 4. It is connected by inserting the cavity shell 4 into the outward-flaring opening and then welded into shape and fixed. This makes the weld strong, the joint strength enhanced, the compressive strength strong, the assembly easy, and the welding simple.

[0037] Example 3

[0038] Based on Embodiment 1, this utility model is as follows: Figure 12 As shown, the valve core tube 3 includes an integral valve core tube 3 and two segmented valve core tubes 3.

[0039] This technical solution: (as follows) Figure 12 The valve core tube 3 shown can be divided into two opposing ends, which are connected by... Figure 12 The exploded half-section view shows that the valve core tube 3 is divided into two halves, which are respectively connected to the through holes on the cavity shell 4. They are formed by welding after insertion. The cavity shell is formed by stamping or stretching.

[0040] Working principle: The valve core tube body 3 is assembled and welded together with the inlet flange 1 and outlet flange 2. Then, the cavity shell 4 is inserted into the valve core tube body 3 and welded together. The cavity shell flange 5 is then connected and welded to the cavity shell 4 in three ways. The cavity shell cover 7 is then connected and welded to the cavity shell cover flange 8 in three ways. The cavity shell 4 and the cavity shell cover 7 are then fixed by bolts through the flange. The cavity shell cover nut seat 11 is fixedly connected by both movable and fixed welding, which strengthens the fastening purpose and reduces the use of fastening tools. Finally, the valve stem 9 is inserted into the valve core inside the cavity shell 4 to complete the assembly.

[0041] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0042] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A valve body shell formed by stamping and stretching, comprising a split welded assembly, including an inlet flange (1) and an outlet flange (2), characterized in that: The inlet flange (1) and outlet flange (2) both include an annular groove flange (101), a circular flange body (102), and an outward-turned circular flange (103) in three flange forms: circular groove, flat, and outward-turned. The annular groove flange (101), the circular flange body (102), and the outward-turned circular flange (103) are all available in two specifications: circular flange and circular flange with notch.

2. The valve body shell of the stamping, stretching forming, and split welding assembly according to claim 1, characterized in that: A valve core tube (3) made of metal is provided between the inlet flange (1) and the outlet flange (2). The valve core tube (3) is divided into three specifications: cylindrical, elliptical and flat round. A connecting pipe groove (301) is provided at the middle of the top of the valve core tube (3). A cavity shell (4) is provided at the connecting pipe groove (301) of the valve core tube (3).

3. The valve body shell of the stamping, stretching forming, and separate welded assembly according to claim 2, characterized in that: The valve core tube (3) includes an integral valve core tube (3) and two segmented valve core tubes (3).

4. The valve body shell of the stamping, stretching forming, and split welding assembly according to claim 2, characterized in that: The cavity shell (4) includes three types of integral slotted cavity shell (401), closed-type perforated cavity shell (402) and semi-cavity shell (403). A cavity shell flange (5) is provided on the top of the cavity shell (4). Screw holes (501) are provided at the four corners of the cavity shell flange (5). Flange nuts (6) are provided at the corresponding positions of the screw holes (501) at the bottom of the cavity shell flange (5). The flange nuts (6) and the cavity shell flange (5) are divided into two types: movable and detachable and integrally welded. The number of flange nuts (6) is at least four.

5. The valve body shell of the stamping, stretching forming, and separate welded assembly according to claim 4, characterized in that: The cavity shell (4) and the cavity shell flange (5) are formed by welding. The top of the cavity shell flange (5) is provided with a cavity shell cover flange (8) connected by screws. Both the cavity shell flange (5) and the cavity shell cover flange (8) include three types of flanges: flat flange (5-A8), eaves flange (5-B8), and annular groove flange (5-C8).

6. The valve body shell of the stamping, stretching forming, and separate welded assembly according to claim 5, characterized in that: The top of the cavity shell flange (8) is provided with a cavity shell body (7) connected thereto. Nut holes (10) are provided at both ends of the top of the cavity shell body (7). A cavity shell nut seat (11) is provided at the corresponding position of the nut hole (10) on the inner top of the cavity shell body (7). The cavity shell nut seat (11) and the cavity shell body (7) are divided into two forms: movable and detachable and integrally welded.

7. The valve body shell of claim 6, characterized in that: The middle end of the cavity shell (7) is provided with a valve stem (9) through a valve stem hole.

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