A faucet shell production process

By cutting and welding pipe fittings to produce faucet shells, the problems of cumbersome and costly zinc alloy shell production have been solved, achieving low-cost and stable faucet shell production with a smooth appearance.

CN117415564BActive Publication Date: 2026-05-08FUJIAN SHENGHUI TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUJIAN SHENGHUI TECH DEV CO LTD
Filing Date
2023-10-23
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing zinc alloy casing production process for faucets is cumbersome and costly, making it difficult to achieve low-cost faucet casing production.

Method used

The faucet housing and the abutting water passage are made by using pipe fittings. The faucet housing with abutting slope is formed by cutting and welding, including cutting the water outlet and water passage hole on the metal pipe fittings and welding the water passage pipe to the bevel to form a stable overall structure.

Benefits of technology

It reduces the production cost of the faucet housing, improves the stability of the housing, and requires no additional surface treatment, resulting in a smooth appearance suitable for use as a finished faucet.

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Abstract

The application discloses a faucet shell production process, comprising S100: preparing a shell and a water passing part; wherein the shell preparation comprises: cutting on a metal pipe and cutting a water outlet on a side wall; wherein the water passing part comprises an integrated inclined plate and a water pipe, the inclined plate has a water passing hole, the side of the inclined plate away from the water pipe has a top-against inclined surface for abutting against a valve core seat, and the inner cavity of the water pipe is communicated with the water passing hole; S200: placing the water passing part into the inner cavity of the shell, the water pipe is out of the water outlet; and fixing the water pipe with the outer wall of the shell. Compared with the prior art, the application innovates the faucet shell production process, separately prepares the shell made of the pipe and the water passing part, and connects the two, so that the inclined plate with the top-against inclined surface is conveniently and low-costly arranged in the shell made of the pipe to abut against the valve core seat.
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Description

Technical Field

[0001] This invention relates to the field of faucet manufacturing, specifically to a faucet shell manufacturing process. Background Technology

[0002] Current faucets on the market, such as CN209278587U, consist of a metal outer shell and a valve core seat (also known as a plastic inner core). The metal outer shell is made of zinc alloy, and the plastic inner core is made of injection-molded plastic. Combining these two components with the valve core forms a complete faucet, significantly reducing production costs. In CN209278587U, the outer shell is cast from zinc alloy to facilitate the integral formation of a second inclined abutment surface inside the shell. This second inclined abutment surface abuts against the first inclined abutment surface on the valve core seat, reducing leakage. Due to its high yield rate and leak-proof design, this type of faucet has quickly become popular in the market.

[0003] However, zinc alloy shells require casting, a complex production process, and further surface treatment is needed after forming, resulting in high costs. Using tubular fittings to process faucet shells can significantly reduce production costs; therefore, there is an urgent need to develop low-cost faucet shells made from tubular fittings suitable for mates with valve seats.

[0004] In view of this, the applicant conducted in-depth research on the aforementioned deficiencies in the prior art, which led to this case. Summary of the Invention

[0005] The main objective of this invention is to provide a faucet shell manufacturing process that offers a low-cost faucet manufacturing process, particularly suitable for producing faucet shells using pipe fittings.

[0006] To achieve the above objectives, the solution of the present invention is:

[0007] A faucet shell manufacturing process, comprising:

[0008] S100: Prepare a shell and a water-passing component; wherein, the preparation of the shell includes: cutting a metal pipe and cutting a water outlet on the side wall; wherein, the water-passing component includes an integrally connected inclined plate and a water-passing pipe, the inclined plate has a water-passing hole, the side of the inclined plate opposite to the water-passing pipe has a pressing inclined surface for abutting against the valve core seat, and the inner cavity of the water-passing pipe communicates with the water-passing hole;

[0009] S200: Insert the abutment water-passing component into the inner cavity of the housing, and let the water-passing pipe pass through the water outlet; fix the water-passing pipe to the outer wall of the housing.

[0010] Furthermore, the preparation of the abutment water passage component involves: cutting an oblique piece with a water passage hole from a metal plate, the oblique piece having an arc-shaped edge that fits against the inner wall of the housing; cutting a water passage pipe from another metal pipe; aligning the water passage pipe with the water passage hole and welding it to the oblique piece.

[0011] Furthermore, the angle between the axis of the water pipe and the normal direction of the inclined plate is 18°; the axis of the water pipe is perpendicular to the axis of the housing.

[0012] Furthermore, before welding the water pipe to the inclined plate, one end of the water pipe is embedded and positioned in the water passage hole; after positioning, the welding connection is then performed.

[0013] Furthermore, the preparation of the abutment water passage component: the abutment water passage component having inclined plates and water passage pipe is integrally cast in a mold.

[0014] Furthermore, the water pipe is fixed to the outer wall of the shell by welding.

[0015] Furthermore, in step S200, before the water pipe is welded to the housing, the edge of the inclined plate abuts against the inner wall of the housing.

[0016] Furthermore, it also includes S300: preparing the water outlet pipe, welding the water outlet pipe to the shell, and having the outlet of the water pipe located inside the water outlet pipe.

[0017] Furthermore, the housing is cut from a stainless steel tube.

[0018] Furthermore, it also includes welding threaded seats onto the housing.

[0019] With the above structure, the faucet shell manufacturing process of the present invention has at least the following beneficial effects:

[0020] 1. The shell is obtained by cutting pipe fittings, which is less expensive than traditional cast shells. The abutting water passage component is inserted into the shell, and then the water passage pipe is passed out from the water outlet and fixed, thereby producing a faucet shell with an abutting slope inside.

[0021] 2. The inclined plate of the water-passing component is cut from a metal sheet, and the water-passing pipe is cut from a metal pipe, ensuring abundant and low-cost raw materials. The cut inclined plate is welded to the water-passing pipe to form a single unit. The edge of the inclined plate abuts against the inner wall of the housing, thus making the connection between the water-passing component and the housing more stable.

[0022] 3. The housing is made of stainless steel tubing with a high degree of smoothness on the outer wall, allowing it to serve as the finished faucet surface without electroplating. A threaded seat is welded inside the housing for easy fixation of the faucet valve core.

[0023] Compared with the prior art, the present invention innovates the manufacturing process of the faucet shell by separately manufacturing the shell made of pipe fittings and separately manufacturing the abutting water passage component, and then connecting the two. This allows for the convenient and low-cost installation of a sloped plate with an abutting slope inside the shell made of pipe fittings to abut against the valve core seat. Attached Figure Description

[0024] Figure 1 This invention relates to a flow chart of a faucet shell manufacturing process.

[0025] Figure 2 A three-dimensional structural diagram of the water-blocking component.

[0026] Figure 3 A three-dimensional structural diagram of the water-blocking component from another angle.

[0027] Figure 4 This is a cross-sectional structural diagram of the faucet shell.

[0028] Figure 5 A schematic diagram showing the exploded structure of the water-blocking component and the shell.

[0029] Figure 6 This is a cross-sectional exploded view of the water outlet pipe, shell, and valve core seat.

[0030] Figure 7 This is a cross-sectional structural diagram of the faucet housing in use.

[0031] Figure 8 This is a three-dimensional exploded view of the water outlet pipe, shell, and valve core seat.

[0032] In the picture:

[0033] 1. Housing; 11. Outlet; 12. Threaded seat; 2. Water-passing part; 21. Inclined plate; 211. Water-passing hole; 212. Inclined surface; 213. Arc edge; 22. Water-passing pipe; 3. Water-outlet pipe; 4. Valve core seat; 41. Inclined surface; 42. Sealing ring. Detailed Implementation

[0034] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0035] like Figures 1 to 8As shown, this invention relates to a faucet shell manufacturing process, including: S100: preparing a shell 1 and a water-passing component 2; the preparation of the shell 1 includes: cutting on a metal pipe (such as a stainless steel pipe) and cutting on the side wall to form a water outlet 11; wherein, the water-passing component 2 includes an integrally connected inclined plate 21 and a water-passing pipe 22, the inclined plate 21 has a water-passing hole 211, the side of the inclined plate 21 facing away from the water-passing pipe 22 has a pressing inclined surface 212 for abutting against a valve core seat 4, and the inner cavity of the water-passing pipe 22 communicates with the water-passing hole 211;

[0036] S200: Insert the abutment water-passing component 2 into the inner cavity of the housing 1, and let the water-passing pipe 22 pass through the water outlet 11; fix the water-passing pipe 22 to the outer wall of the housing 1; the fixing method may be welding, bonding or using fasteners for locking connection.

[0037] Thus, the present invention relates to a faucet shell manufacturing process, wherein the shell 1 is obtained by cutting a pipe, which is less expensive than the traditional cast shell 1. The abutting water passage component 2 is inserted into the shell 1, and then the water passage pipe 22 is passed out from the water outlet 11 and fixed, thereby producing a faucet shell 1 with an abutting inclined surface 212 inside the shell.

[0038] like Figure 7 As shown, the valve core seat 4 is assembled in the housing 1 from bottom to top. The inclined surface 41 of the valve core seat 4 abuts against the abutting inclined surface 212 on the inclined plate 21. A sealing ring 42 is provided on the inclined surface 41 to abut against the abutting inclined surface 212, thereby realizing the connection of the water circuit.

[0039] As a first embodiment of the preparation of the abutment water-passing component 2, the preparation of the abutment water-passing component 2 is as follows: a beveled piece 21 with a water-passing hole 211 is cut from a metal plate, the beveled piece 21 having an arc-shaped edge 213 that fits against the inner wall of the housing 1; a water-passing pipe 22 is cut from another metal pipe; the water-passing pipe 22 is aligned with the water-passing hole 211 and welded to the beveled piece 21. The angle between the axis of the water-passing pipe 22 and the normal direction of the beveled piece 21 is 18°; the axis of the water-passing pipe 22 is perpendicular to the axis of the housing 1. One end of the water-passing pipe 22 is cut with a bevel, and the shape of the water-passing hole 211 on the beveled piece 21 is an ellipse that matches the bevel on the water-passing pipe 22; before welding the water-passing pipe 22 to the beveled piece 21, one end of the water-passing pipe 22 is embedded and positioned in the water-passing hole 211; after positioning, the welding connection is performed. The inclined plate 21 of the water-passing component 2 is cut from a metal sheet, and the water-passing pipe 22 is cut from a metal pipe, ensuring abundant and low-cost raw materials. The cut inclined plate 21 is welded to the water-passing pipe 22 to form a single unit.

[0040] As a second embodiment of the preparation of the abutment water passage component 2: the abutment water passage component 2 having an inclined plate 21 and a water passage pipe 22 is integrally cast in a mold. The edge of the inclined plate 21 abuts against the inner wall of the housing 1, so that the abutment water passage component 2 is more stable after being connected to the housing 1, thus eliminating the need for the welding step of the inclined plate 21 and the water passage pipe 22.

[0041] Preferably, the water pipe 22 is fixed to the outer wall of the housing 1 by welding; in step S200, before the water pipe 22 is welded to the housing 1, the edge of the inclined plate 21 abuts against the inner wall of the housing 1.

[0042] Preferably, it also includes S300: preparing a water outlet pipe 3, welding the water outlet pipe 3 to the housing 1, and having the outlet of the water passage pipe 22 located inside the water outlet pipe 3; the water flowing out from the water passage pipe 22 enters the water outlet pipe 3 and is then discharged from the water outlet of the water outlet pipe 3.

[0043] Preferably, the housing 1 is cut from a stainless steel tube. It also includes a threaded seat 12 welded onto the housing 1. The housing 1 is made of stainless steel tubing, with a high degree of smoothness on the outer wall; the outer wall surface can be used as the finished faucet surface without electroplating. The threaded seat 12 is welded inside the housing 1 to facilitate the fixing of the faucet valve core inside the housing 1. Furthermore, the lower part of the inner cavity of the housing 1 is also provided with internal threads for installing a lower fixing ring (not shown in the figure) to restrict the axial movement of the valve core seat 4.

[0044] Compared with the prior art, the present invention innovates the production process of the faucet shell by separately preparing the shell 1 made of pipe fittings and separately preparing the abutting water passage component 2, and then connecting the two, so as to conveniently and cost-effectively set the inclined plate 21 with the abutting slope 212 in the shell 1 made of pipe fittings to abut and connect with the valve core seat 4.

[0045] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A manufacturing process for a faucet shell, characterized in that, include: S100: Prepare a shell and a water-passing component; wherein, the preparation of the shell includes: cutting a metal pipe and cutting a water outlet on the side wall; wherein, the water-passing component includes an integrally connected inclined plate and a water-passing pipe, the inclined plate has a water-passing hole, the side of the inclined plate opposite to the water-passing pipe has a pressing inclined surface for abutting against the valve core seat, and the inner cavity of the water-passing pipe communicates with the water-passing hole; S200: Insert the water-passing component into the inner cavity of the housing, and let the water-passing pipe pass through the outlet; fix the water-passing pipe to the outer wall of the housing; the axis of the water-passing pipe is perpendicular to the axis of the housing; the water-passing pipe is fixed to the outer wall of the housing by welding. In step S200, before the water pipe is welded to the shell, the edge of the inclined plate abuts against the inner wall of the shell.

2. The faucet shell manufacturing process as described in claim 1, characterized in that, The preparation of the top water passage component involves cutting an oblique piece with water passage holes from a metal plate, the oblique piece having an arc-shaped edge that fits against the inner wall of the shell; and cutting a water passage pipe from another metal pipe. Align the water pipe with the water hole and weld it to the inclined plate.

3. A faucet shell manufacturing process as described in claim 1 or 2, characterized in that, The angle between the axis of the water pipe and the normal direction of the inclined plate is 18°.

4. The faucet shell manufacturing process as described in claim 2, characterized in that, Before welding the water pipe to the inclined plate, one end of the water pipe is embedded and positioned in the water passage hole; after positioning, the welding connection is then performed.

5. The faucet shell manufacturing process as described in claim 1, characterized in that, Preparation of the abutment water passage component: The abutment water passage component having inclined plates and water passage pipe is integrally cast in a mold.

6. The faucet shell manufacturing process as described in claim 1, characterized in that, It also includes S300: prepare the water outlet pipe, weld the water outlet pipe to the shell, and the outlet of the water pipe is located inside the water outlet pipe.

7. The faucet shell manufacturing process as described in claim 1, characterized in that, The shell is cut from a stainless steel tube.

8. The faucet shell manufacturing process as described in claim 1, characterized in that, It also includes welding threaded seats onto the housing.

Citation Information

Patent Citations

  • Anti-frost-crack mixing faucet

    CN209278587U

  • Mounting type faucet body

    CN211203035U

  • Improved faucet

    CN212338270U