Stamping and stretching forming split type welded and assembled valve body shell

Abstract

The invention relates to the technical field of valve body shells, in particular to a stamping and stretching forming split type welding and splicing valve body shell which comprises a water inlet flange and a water outlet flange, the water inlet flange and the water outlet flange each comprise an annular groove flange, a circular flange body and an outwards-turned ring circular flange, and the annular groove flange is provided with a circular notch, a plain end and an outwards-turned flange. And the annular groove flange, the circular flange body and the outward-turning ring circular flange are respectively divided into two specification forms, namely a circular flange and a circular flange with a notch. Through the split welding effect, the valve body shell has the advantages that multi-component combined welding is achieved, the valve body shell is higher in applicability through a multi-flange welding connection mode, welding is firm, assembling is easy, the production process and technology are more environmentally friendly, and pollution discharge is avoided; the problems that an existing water valve cannot be used in a matched mode in the installation process due to connection defects, matching performance and limitation, and production procedures in the casting and forging process are tedious, and pollution is discharged are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of valve body shells, in particular to a valve body shell that is formed by stamping, stretching, split welding and assembly. Background Art

[0002] Water valves are a commonly used water control device and equipment for controlling water flow. Currently, most valves on the market are completed by one-piece casting or welding. Water valves are a relatively precise water control device. Many water valves are currently manufactured using one-piece molding and overall welding processes. This makes the production process complicated. Since the surface of the casting needs to go through processes such as sand casting and electrolysis, it involves pollution problems and sewage discharge, which is not environmentally friendly. In addition, the multiple process steps increase the time cost and the production efficiency cannot be improved. Faced with various problems derived from technical disadvantages, we propose a valve body shell that is stamped and stretched and welded and assembled. Summary of the Invention

[0003] The purpose of the present invention is to provide a valve body shell that is stamped and stretched to form a split welded assembly, which has the advantages of multi-component combination welding, multi-flange welding connection to make the valve body shell more applicable, firm welding and easy assembly, and more environmentally friendly and pollution-free production process and technology. It solves the connection disadvantages, matching and limitations of existing water valves that make them incompatible during installation, and the problems of complicated production procedures and pollution emissions in casting and forging processes.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a valve body shell that is stamped, stretched, formed, split, welded and assembled, including an inlet flange and an outlet flange. The inlet flange and the outlet flange both include an annular groove flange, a circular flange body and an outward-turned circular flange in three flange forms: a circular groove, a flat mouth and an outward-turned type. The annular groove flange, the circular flange body and the outward-turned circular flange are all divided into two specifications: a circular flange and a circular flange with a notch.

[0005] Preferably, a valve core tube body made of metal material is provided between the water inlet flange and the water outlet flange, and the valve core tube body is divided into three specifications: cylindrical, elliptical and oblate. A docking pipe groove is opened at the middle end of the top of the valve core tube body, and a cavity shell is provided at the docking pipe groove of the valve core tube body.

[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 forms: an integral slotted cavity shell, a closed open-hole cavity shell and a semi-cavity shell. A cavity shell flange is provided above 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 divided into two forms: movable and detachable and integrally welded, and 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. The cavity shell flange and the cavity shell cover flange both include three types of flat flanges, eaves outward-turned flanges and annular groove flanges.

[0009] Preferably, the top of the cavity shell cover flange is provided with a cavity shell cover body connected to it, and nut holes are opened at both ends of the top of the cavity shell cover body. The nut holes are located at the corresponding positions of the top inner side of the cavity shell cover body, and a cavity shell cover nut seat is provided. The cavity shell cover nut seat and the cavity shell cover body are divided into 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 present invention has the following beneficial effects: 1. The present invention The present invention arranges the cavity shell and the cavity shell flange as well as the cavity shell cover and the cavity shell cover flange separately and connects them through eaves features or embedded docking and then welds them into shape. The overall welding surface is flat, smooth, burr-free and has strong pressure bearing capacity. The water inlet flange and the water outlet flange are also arranged in a relatively symmetrical manner and are welded into shape by connecting them with the valve core pipe body. The water inlet flange and the water outlet flange are provided with three forms: through hole and flat mouth form, form with annular groove form, and form with outward turn form, which meet various welding requirements and achieve various welding connection methods, realize the independence of each component, and weld multiple components into one piece by welding. The forming method of the cavity shell is obtained by one-piece stamping or by one-piece stretching. The cavity shell shape is set to be formed by overall stretching or stamping, or half-cavity shell is stamped or stretched to achieve two processes and two forms. Compared with casting, the present invention is more environmentally friendly by stamping and stretching, avoids complex processes such as sand casting and electrolysis, saves costs and is more environmentally friendly.

[0012] 2. The present invention connects the split flange and the integrally stretched and stamped cavity shell, so that the valve control device is improved in welding technology, with diverse combinations, simple and convenient manufacturing, and strong pressure-bearing capacity. The three forms of flat-end butt welding, annular groove embedded welding and outward-turned sleeve welding set by the flange can realize a variety of welding methods, making the welds smoother and firmer. The outward-turned and annular groove embedded welding methods can enhance the strength of the overall structure and can withstand greater water pressure. The nut seat can achieve flexibility and firmness of the flange connection through split and integrated welding, avoiding the use of extra wrenches for fixing. The whole is completed by splicing and welding multiple components, eliminating the complex processing process of one-piece casting and the emission of pollutants. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an explosion diagram of the present invention; Figure 2 This is a schematic diagram of a circular flange with a notch according to the present invention; Figure 3 This is a schematic diagram of the notched shape of the annular groove flange of the present invention; Figure 4 This is a schematic diagram of a circular flange without a notch according to the present invention; Figure 5 This is a schematic diagram of the outward-facing circular flange without a notch of the present invention; Figure 6 This is a schematic diagram of the flat flange of the present invention; Figure 7 This is a schematic diagram of the annular groove flange of the present invention; Figure 8 This is a schematic diagram of the outward-turned flange of the cornice of the present invention; Figure 9 This is a schematic diagram of the integral slotted cavity shell of the present invention; Figure 10 This is a schematic diagram of a closed open cavity shell of the present invention; Figure 11 This is a schematic diagram of a half-cavity shell of the present invention; Figure 12 It is a half-section exploded schematic diagram of the segmented valve core tube body and cavity shell of the present invention.

[0014] In the figure: 1. Water inlet flange; 2. Water outlet flange; 3. Valve core pipe body; 301. Butt pipe groove; 4. Cavity shell; 5. Cavity shell flange; 501. Screw 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-turned circular flange; 401. Integral slotted cavity shell; 402. Closed open-hole cavity shell; 403. Half cavity shell; 5-A8, Flat flange; 5-B8, Eaves outward-turned flange; 5-C8, Annular groove flange. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0018] The water inlet flange 1, water outlet flange 2, valve core tube body 3, docking pipe groove 301, cavity shell 4, cavity shell flange 5, screw 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-turned ring circular flange 103, integral slotted cavity shell 401, closed open hole cavity shell 402, semi-cavity shell 403, flat flange 5-A8, eaves outward-turned flange 5-B8 and annular groove flange 5-C8 components of this application are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0019] Example 1 See also Figures 1-12 As shown, the present invention provides a technical solution: a stamped and stretched split welded assembled valve body shell, including an inlet flange 1 and an outlet flange 2, wherein the inlet flange 1 and the 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: a circular notch, a flat mouth and an outward-turned type, and the annular groove flange 101, the circular flange body 102 and the outward-turned circular flange 103 are all divided into two specifications: a circular flange and a circular flange with a notch.

[0020] In this technical solution, the water inlet flange 1 and the water outlet flange 2 are set correspondingly, and all structures are set in the same mirror image. Figure 2-Figure 5 It can be seen that the water inlet flange 1 has two forms, namely, notched circular and circular. Figure 2 and Figure 3 The notched circular flange shown has two states: circular groove and outward-turned. Figure 3 The third form is a flat flange, which is inserted into the circular hole of the flange and has strong pressure bearing capacity.

[0021] Example 2 Based on the first embodiment, the present invention is as follows Figures 1-12 As shown, a valve core tube body 3 made of metal material is provided between the water inlet flange 1 and the water outlet flange 2, and the valve core tube body 3 is divided into three specifications: cylindrical, elliptical and oblate. A docking pipe groove 301 is provided at the middle end of the top of the valve core tube body 3, and a cavity shell 4 is provided at the docking pipe groove 301 of the valve core tube body 3. The cavity shell 4 includes three forms: an integral slotted cavity shell 401, a closed open-hole cavity shell 402 and a semi-cavity shell 403. A cavity shell flange 5 is provided above the cavity shell 4, and 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 nut 6 and the cavity shell flange 5 are divided into two forms: movable and detachable and integrally welded. The number of flange nuts 6 is at least four, and 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. The cavity shell flange 5 and the cavity shell cover flange 8 both include three forms of flat flange 5-A8, eaves outward-turned 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 thereto, and nut holes 10 are provided at both ends of the top of the cavity shell cover body 7. The nut holes 10 are located at the corresponding position of the inner top of the cavity shell cover body 7. A cavity shell cover nut seat 11 is provided. The cavity shell cover nut seat 11 and the cavity shell cover body 7 are divided into two forms: movable and detachable and integrally welded. The middle end of the cavity shell cover body 7 is provided with a valve stem 9 through the valve stem hole.

[0022] This technical solution: Figures 9-11 As shown in the present invention, a butt joint groove 301 is provided on the valve core tube body 3, and the butt joint groove 301 is obtained by cutting an annular special-shaped cutting method. The position of the butt joint groove 301 is used to connect the cavity shell 4, and the cavity shell 4 is set to three forms. The first is formed by integrally stretching a cavity shell or stamping, and a bottom groove is provided on the cavity shell 4; the second is formed by integrally stretching or stamping, and a circular hole with a diameter larger than the outer diameter of the valve core tube body 3 is provided on the cavity shell 4; the third is a half-shell groove form formed by stretching or stamping, which is combined with the valve core tube body 3 in three forms and welded into an integral connection by welding, such as Figure 10 and Figure 11 The mouth shown is set as a flat mouth, which is used to connect the cavity shell flange 5. Figure 6-Figure 8As shown, the eaves of the cavity shell flange 5 are provided with three forms. The first cavity shell flange 5 is set as a flat mouth design; the second cavity shell flange 5 eaves is set as an annular groove design; the third cavity shell flange 5 is set as an outward-turned eaves design, and is adapted and welded with the mouth of the cavity shell 4 through three forms. The flat cavity shell flange 5 is completed by welding by matching with the mouth of the cavity shell 4. The eaves is set as an annular groove, and the outer edge size of the annular groove is larger than the outer size of the mouth of the cavity shell 4. It is welded and formed by welding after plug-in connection. The outward-turned eaves flange 5-B8 has an outward-turned size smaller than the internal size of the mouth of the cavity shell 4. The cavity shell 4 is inserted into the outward-turned mouth for matching connection, and then welded and fixed, so that the welded joint is strong, the pressure resistance is strong, and the assembly is easy and the welding is simple.

[0023] Example 3 Based on the first embodiment, the present invention is as follows Figure 12 As shown, it is disclosed that the valve core tube body 3 includes an integral valve core tube body 3 and two segmented valve core tube bodies 3 .

[0024] This technical solution: Figure 12 The valve core tube body 3 shown in the figure can be divided into two supporting ends, through Figure 12 As can be seen from the half-section exploded view, the valve core tube body 3 is divided into two half sections, which are respectively connected to the through holes on the cavity shell 4, and are formed by welding after insertion. The cavity shell is formed by stamping or stretching process.

[0025] Working principle: The water inlet flange 1 and the water outlet flange 2 are assembled and welded with the valve core tube body 3, and then the cavity shell 4 is inserted into the docking pipe groove 301 position of the valve core tube body 3 and welded into one, and then the cavity shell flange 5 and the cavity shell 4 are connected and welded in three ways, and then the cavity shell cover body 7 and the cavity shell cover flange 8 are connected and welded in three ways, and then the cavity shell 4 and the cavity shell cover body 7 are screwed and fixed through the flange, and the cavity shell cover nut seat 11 is fixed by both live and fixed welding, which strengthens the fastening purpose and reduces the use of fastening tools, and then the valve stem 9 is inserted into the valve core connected to the cavity shell 4 to implement the assembly state.

[0026] It is important to note that the construction and arrangement of the present application, as illustrated in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, components shown as integrally formed may be constructed from multiple parts or components, the positions of components may be inverted or otherwise altered, and the nature, number, or position of discrete components may be modified or changed. All such modifications are therefore intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or resequenced according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures described herein that perform the recited function, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of this invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0027] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (i.e., those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A stamped and stretched split-type welded assembled valve body shell, comprising an inlet flange (1) and an outlet flange (2), characterized in that: The water inlet flange (1) and the water outlet flange (2) each comprise an annular groove flange (101), a circular flange body (102), and an outward-turned circular flange (103) in three flange forms: a circular notch, a flat mouth, and an outward-turned type. The annular groove flange (101), the circular flange body (102), and the outward-turned circular flange (103) are each divided into two specifications: a circular flange and a circular flange with a notch.

2. The stamped and stretched split-type welded assembled valve body shell according to claim 1, characterized in that: A valve core tube body (3) made of metal material is provided between the water inlet flange (1) and the water outlet flange (2), and the valve core tube body (3) is divided into three specifications and forms: cylindrical, elliptical and oblate. A butt joint groove (301) is provided at the middle end of the top of the valve core tube body (3), and a cavity shell (4) is provided at the butt joint groove (301) of the valve core tube body (3).

3. The stamped and stretched split-type welded assembled valve body shell according to claim 2, characterized in that: The valve core tube body (3) comprises an integral valve core tube body (3) and two segmented valve core tube bodies (3).

4. The stamped and stretched split-type welded assembled valve body shell according to claim 2, characterized in that: The cavity shell (4) includes three forms: an integral slotted cavity shell (401), a closed open-hole cavity shell (402), and a semi-cavity shell (403). A cavity shell flange (5) is provided above the cavity shell (4). Screw holes (501) are provided at four corners of the cavity shell flange (5). Flange nuts (6) are provided at 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 in two forms: movable and detachable and integrally welded. The number of flange nuts (6) is at least four.

5. The stamping, stretching, split, welded and assembled valve body shell according to claim 4, characterized in that: The cavity shell (4) and the cavity shell flange (5) are formed by welding, and a cavity shell cover flange (8) connected by screws is provided on the top of the cavity shell flange (5), and the cavity shell flange (5) and the cavity shell cover flange (8) both include three types of flat flanges (5-A8), cornice outward-turned flanges (5-B8) and annular groove flanges (5-C8).

6. The stamped and stretched split-type welded assembled valve body shell according to claim 5, characterized in that: The top of the cavity shell cover flange (8) is provided with a cavity shell cover body (7) connected thereto, and nut holes (10) are provided at both ends of the top of the cavity shell cover body (7), and a cavity shell cover nut seat (11) is provided at a corresponding position of the nut hole (10) located at the top of the inner side of the cavity shell cover body (7), and the cavity shell cover nut seat (11) and the cavity shell cover body (7) are divided into two forms: movable and detachable and integrally welded.

7. The stamped and stretched split-type welded assembled valve body shell according to claim 6, characterized in that: A valve stem (9) is provided at the middle end of the cavity shell (7) through a valve stem hole.

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