A combination shower faucet
By using an interference fit between the thin-walled shell and the valve body and a unique circumferential weld design, the complex welding problem between the thin-walled shell and the valve body is solved, achieving efficient and reliable welding and sealing effects, and reducing costs and time.
Patent Information
- Application Number
- CN202521537456.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-22
AI Technical Summary
The existing welding between the thin-walled shell and the valve body is complex and difficult, resulting in high welding costs and unstable welding quality.
The thin-walled shell is connected to the valve body by interference fit. Only a single circumferential weld is required between the connecting hole and the outer wall of the valve body. Fixing and sealing are achieved by laser welding, eliminating the need for the traditional multi-weld design.
It significantly reduces the complexity of the welding process, shortens the welding time, improves the welding quality and sealing effect, reduces welding costs, and avoids stress concentration and leakage risks.
Smart Images

Figure CN224680214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shower faucet technology, and in particular to a combination shower faucet. Background Technology
[0002] A shower faucet is a water valve on a tap, a bathroom device that controls the flow of hot and cold water by turning it on or off.
[0003] The invention disclosed in CN220134733U is a shower faucet, which includes a valve body and a thin-walled housing. Two thin-walled housings are symmetrically arranged on both sides of the valve body and fixedly connected to the valve body. The inner cavity of the thin-walled housing is connected to the inner cavity of the valve body. A water inlet unit is provided on one side of the thin-walled housing. The water inlet unit includes a flanged hole body. The flanged hole body protrudes from the inside of the thin-walled housing and is integrally formed with the thin-walled housing. The inner wall of the flanged hole body is provided with threads for connecting to a water supply pipe.
[0004] The existing thin-walled shell is connected to the valve body by welding, which has two irregular closed-loop welds, making welding difficult and costly. Summary of the Invention
[0005] In view of this, it is necessary to provide a combined shower faucet to solve the problem of complex and difficult welding between the existing thin-walled housing and valve body.
[0006] This utility model provides a combined shower faucet, comprising: A thin-walled shell, wherein a connecting hole is provided in the middle of the thin-walled shell, and flanged holes are provided on both sides of the thin-walled shell; The valve body is inserted into the connecting hole. The outer wall of the valve body is interference-fitted with the inner wall of the thin-walled shell to separate the inner cavity of the thin-walled shell into two independent chambers. A unique annular weld is provided between the opening of the connecting hole and the outer wall of the valve body. The chambers are respectively connected to the flanged hole. Water flow channels communicating with the chambers are provided on both sides of the valve body.
[0007] Furthermore, the side of the valve body abuts against both sides of the inner wall of the thin-walled housing, the bottom of the valve body abuts against the bottom of the inner wall of the thin-walled housing, and the connecting hole body is interference-fitted with the valve body.
[0008] Furthermore, the bottom of the valve body is provided with an arc-shaped portion that adapts to the inner wall of the thin-walled housing.
[0009] Furthermore, one end of the water flow channel is provided with a water inlet, which is located on one side of the valve body and communicates with the chamber, and the other end of the water flow channel is provided with a water outlet, which is located at one end of the valve body opposite to the adjustment handle.
[0010] Furthermore, one side of the valve body is provided with a threaded portion for connecting to the shower head, and the threaded portion is connected to the water outlet through the valve.
[0011] Furthermore, the flanged hole protrudes from the interior of the thin-walled shell and is integrally formed with the thin-walled shell, and the inner wall of the flanged hole is provided with threads for connecting to the water supply pipe.
[0012] Furthermore, the two flanged holes are respectively connected to the hot water supply pipe and the cold water supply pipe.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a combined shower faucet, comprising a thin-walled shell with a connecting hole in the middle. A valve body is inserted into the connecting hole, and the outer wall of the valve body is interference-fitted with the inner wall of the thin-walled shell. The thin-walled shell compresses the valve body, forming a relatively sealed structure. This sealing structure can separate the inner cavity of the thin-walled shell into two independent chambers. A unique annular weld is provided between the opening of the connecting hole and the outer wall of the valve body. The annular weld not only fixes the thin-walled shell and the valve body but also further strengthens the seal between the connecting hole and the valve body, preventing shower water leakage. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is an exploded view of the entire utility model; Figure 3 This is a schematic diagram of the valve body in this utility model; Figure 4 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 5 for Figure 4 Schematic diagram of the structure in the AA direction; Figure 6 This is a schematic diagram of the overall structure of the present invention. Figure 3 ; Figure 7 for Figure 6A schematic diagram of the structure in the BB direction.
[0015] In the diagram, 100 is the thin-walled shell; 110 is the connecting hole; and 120 is the flanged hole. 200. Valve body; 210. Water flow channel; 211. Inlet; 212. Outlet; 220. Arc-shaped part; 230. Threaded part; 300. Circular weld. Detailed Implementation
[0016] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.
[0017] This embodiment of a combined shower faucet relates to the field of shower faucet technology. By optimizing the structure of the faucet, the two thin-walled shells 100 are integrated as a whole, and the valve body 200 is connected to the thin-walled shell 100 by an interference fit. Only one weld is needed to fix the valve body 200 to the thin-walled shell 100.
[0018] Please see Figures 1 to 7 This embodiment of a combined shower faucet includes a thin-walled housing 100 and a valve body 200. The valve body 200 is interference-fitted with the thin-walled housing 100, separating the inner cavity of the thin-walled housing 100. Only one circumferential weld 300 is needed to weld the thin-walled housing 100 and the valve body 200 together.
[0019] A connecting hole 110 is provided in the middle of the thin-walled housing 100. The valve body 200 is inserted into the connecting hole 110. The outer wall of the valve body 200 is interference-fitted with the inner wall of the thin-walled housing 100. The thin-walled housing 100 compresses the valve body 200 to form a relatively sealed structure. The sealing structure can separate the inner cavity of the thin-walled housing 100 into two independent chambers. A unique annular weld 300 is provided between the opening of the connecting hole 110 and the outer wall of the valve body 200. The annular weld 300 can not only fix the thin-walled housing 100 and the valve body 200, but also further strengthen the seal between the connecting hole 110 and the valve body 200 to prevent leakage of shower water.
[0020] The thin-walled shell 100 has flanged holes 120 on both sides, and the chambers are connected to the flanged holes 120 respectively; the valve body 200 has water flow channels 210 on both sides that are connected to the chambers.
[0021] During use, after the valve body 200 is inserted into the connecting hole 110 of the thin-walled housing 100, the valve body 200 and the thin-walled housing 100 are tightly abutted together. It is only necessary to use a laser to weld the edge of the connecting hole 110 to the outer wall of the valve body 200 as one piece.
[0022] Compared to existing technologies, traditional shower faucets require two irregularly shaped welds between the housing and the valve body 200. This solution, however, uses a design where the valve body 200 is inserted into the connecting hole 110, requiring only a single continuous weld at the edge of the connecting hole 110. This results in lower welding difficulty, higher welding quality, and shorter welding time. After the implementation of this product model, the welding process time was reduced from 1 minute to 15 seconds, and the weld inspection pass rate increased from 82% to 97%. This structural improvement significantly reduced the complexity of the welding process, while avoiding stress concentration problems that may be caused by multiple welds.
[0023] In some embodiments, please refer to Figure 5 The sides of the valve body 200 abut against the inner walls of the thin-walled housing 100, forming a tight seal. The bottom of the valve body 200 abuts against the bottom of the inner wall of the thin-walled housing 100, also forming a tight seal. The valve body 200 can block the communication between the chambers on both sides of the thin-walled housing 100, enabling independent delivery of cold and hot water. The connecting hole 110 is interference-fitted with the valve body 200, sealing the connection between the valve body 200 and the opening of the thin-walled housing 100, thus preventing water overflow.
[0024] In practical implementation, the distance between the two sides of the inner wall of the thin-walled housing 100 is slightly smaller than the diameter of the valve body 200. After the valve body 200 is inserted into the connecting hole 110, the inner wall of the thin-walled housing 100 expands relatively and automatically generates a relative retraction squeezing force, which can relatively press the valve body 200 together and achieve a relative seal. The bottom of the valve body 200 and the bottom of the inner wall of the thin-walled housing 100 are mating planes that can fit tightly together to form a sealing surface, blocking the flow of liquid. The opening of the connecting hole 110 is circular and is located on the circumferential surface of the valve body 200. The opening diameter of the thin-walled housing 100 is slightly smaller than the outer diameter of the valve body 200, which can relatively clamp the valve body 200. A laser welder can perform circumferential welding at the junction of the opening of the thin-walled housing 100 and the valve body 200, and the connection and sealing of the thin-walled housing 100 and the valve body 200 can be completed using a single circumferential weld 300.
[0025] During operation, the thin-walled shell 100 is heated to 150°C using an electromagnetic eddy current heater, causing the thin-walled shell 100 to expand due to heat. Then, the valve body 200 is inserted into the connecting hole 110. After the thin-walled shell 100 cools and contracts naturally, the connecting hole 110 clamps the valve body 200 as a whole, thus achieving the connection and sealing between the thin-walled shell 100 and the connecting hole 110.
[0026] In the specific implementation process, the cross-section of the thin-walled shell 100 is elongated, and the inner wall edge of the thin-walled shell 100 forms a rounded corner with a smooth transition. The bottom of the valve body 200 is provided with an arc portion 220 that is adapted to the inner wall of the thin-walled shell 100. The arc portion 220 can cooperate with the rounded corner to ensure that the inner wall of the thin-walled shell 100 can be tightly fitted with the valve body 200, reduce the joints, and avoid leakage.
[0027] In some embodiments, please refer to Figure 7 One end of the water flow channel 210 is provided with an inlet 211, which is located on one side of the valve body 200 and communicates with the chamber. The other end of the water flow channel 210 is provided with an outlet 212, which is located at the end of the valve body 200 opposite to the adjustment handle. The water flow channel 210 can communicate with the outside world and the shower faucet, thereby delivering cold water and hot water to the shower faucet respectively.
[0028] In practical implementation, the inlet 211 refers to the starting end of the water flow into the channel, which can be achieved by opening a through hole in the side wall of the valve body 200. This through hole is connected to the chamber and is used to introduce external water supply into the chamber. The outlet 212 refers to the ending end of the water flow out of the channel, which can be achieved by opening a through hole in the top or bottom of the valve body 200. This through hole is distributed in a relative position to the end where the regulating handle is located and is used to guide the regulated water flow to the external pipeline.
[0029] The regulating handle refers to the operating component used to control the water flow switch or regulate the flow rate, which can be implemented by using a rotating valve stem and valve core linkage structure.
[0030] When water enters the chamber through inlet 211, it flows through water flow channel 210 inside valve body 200 to outlet 212, which is located at the end of valve body 200 furthest from the regulating handle. This arrangement ensures that the water flow path forms a straight or near-straight direction within valve body 200, avoiding water pressure loss caused by complex bends. Simultaneously, the separation design of the regulating handle and outlet 212 prevents water flow from directly impacting the handle connection during operation, reducing the risk of sealing structure failure.
[0031] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 4 The valve body 200 has a threaded part 230 on one side for connecting with the shower head. The threaded part 230 is connected to the water outlet 212 through a valve. The valve can control the opening degree of the two water outlets 212, so that the mixed hot and cold water is output from the inner cavity of the threaded part 230, thereby realizing the temperature control of the water outlet.
[0032] In practical implementation, threaded section 230 refers to a cylindrical connection structure with helical grooves, which can be machined using metric or pipe threads to form a detachable mechanical seal connection with the showerhead interface. The cylindrical connection structure has an internal hole communicating with a valve. The valve is an actuator that controls the flow of fluid, and can be implemented using a ball valve or ceramic valve core structure. The valve communicates with both water outlets and the hole, and its rotational movement regulates the flow rate of the two outlets 212, thereby adjusting the water temperature.
[0033] When the shower head needs to be installed, its interface can be directly screwed into the threaded part 230 for fixation, and the engagement of the threads forms a stable mechanical connection. A valve is installed in the flow channel between the threaded part 230 and the outlet 212. When the valve is open, water flows from the outlet 212 through the valve into the threaded part 230 and finally to the shower head; when the valve is closed, the water flow channel 210 is blocked, thus achieving water-saving functionality. This structure, through the combination of threaded connection and valve control, achieves integrated control of the shower head's quick installation and removal, as well as the opening and closing of the water flow.
[0034] In some embodiments, please refer to Figure 7 The flanged hole 120 protrudes from the interior of the thin-walled shell 100 and is integrally formed with the thin-walled shell 100. The inner wall of the flanged hole 120 is provided with threads for connecting to the water supply pipe. Through the cooperation of the integrated flanged hole 120 and the standard thread, the water supply pipe can be installed quickly and the risk of weld leakage can be avoided, which significantly improves the product assembly efficiency and service life.
[0035] In practical implementation, the flanged hole 120 is a tubular structure extending outward from the inner wall of the thin-walled shell 100. It can be formed by stamping or spinning processes and become an integral structure with the shell. Its internal protruding shape can enhance the structural strength and form a continuous water flow channel 210. The spiral grooves distributed on the inner wall of the flanged hole 120 can be implemented using standard pipe thread specifications such as G1 / 2 or R1 / 2, for forming a sealed connection with the water supply pipe joint.
[0036] During assembly, the hot water pipe and cold water pipe connectors are directly screwed into the threads of the flanged hole 120, and the water flows through the flanged hole 120 to communicate with the inner cavity of the thin-walled shell 100. This structure eliminates the need for traditional welded flanged pipe fittings, allowing the water supply pipeline to directly connect with the shell.
[0037] Traditional shower faucets require welding separate pipe fittings as interfaces onto the thin-walled housing 100, resulting in an increased number of welds and complex shapes. This solution eliminates the additional welding process and reduces processing difficulty through an integrated, molded flanged hole body 120 structure. At the same time, the threaded connection replaces the welded interface, improving sealing reliability.
[0038] It should be noted that the two flanged holes 120 are connected to the hot water supply pipe and the cold water supply pipe respectively. The flanged holes 120 on both sides of the thin-walled shell 100 are machined into independent channels. During installation, the hot water supply pipe is threaded into one flanged hole 120, and the cold water supply pipe is threaded into the other flanged hole 120. The two pipes are connected to two separate chambers inside the thin-walled shell 100 through the flanged holes 120, allowing the hot and cold water to flow independently within the chambers and preventing mixing. The threaded connection of the flanged holes 120 requires no additional welding or sealing; the pipes are fixed and sealed directly by tightening the threads.
[0039] Traditional shower faucets do not clearly distinguish between hot and cold water inlet interfaces, requiring external markings or manual judgment during installation, which can easily lead to reversed pipe connections. This solution uses two independently designed flanged holes 120, making the hot and cold water supply pipes physically incompatible, thus eliminating the risk of incorrect connection at the source. Furthermore, the flanged holes 120 are integrally formed with the thin-walled shell 100, eliminating the complex closed-loop weld processing steps of traditional welding processes.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.
Claims
1. A combination shower faucet, characterized in that, include: A thin-walled shell, wherein a connecting hole is provided in the middle of the thin-walled shell, and flanged holes are provided on both sides of the thin-walled shell; The valve body is inserted into the connecting hole. The outer wall of the valve body is interference-fitted with the inner wall of the thin-walled shell to separate the inner cavity of the thin-walled shell into two independent chambers. A unique annular weld is provided between the opening of the connecting hole and the outer wall of the valve body. The chambers are respectively connected to the flanged hole. Water flow channels communicating with the chambers are provided on both sides of the valve body.
2. A combined shower faucet according to claim 1, characterized in that, The side of the valve body abuts against both sides of the inner wall of the thin-walled housing, the bottom of the valve body abuts against the bottom of the inner wall of the thin-walled housing, and the connecting hole body is interference-fitted with the valve body.
3. A combined shower faucet according to claim 2, characterized in that, The bottom of the valve body is provided with an arc-shaped portion that fits the inner wall of the thin-walled housing.
4. A combined shower faucet according to claim 1, characterized in that, One end of the water flow channel is provided with a water inlet, which is located on one side of the valve body and communicates with the chamber. The other end of the water flow channel is provided with a water outlet, which is located at one end of the valve body opposite to the adjustment handle.
5. A combined shower faucet according to claim 4, characterized in that, One side of the valve body is provided with a threaded part for connecting to the shower head, and the threaded part is connected to the water outlet through the valve.
6. A combined shower faucet according to claim 1, characterized in that, The flanged hole protrudes from the interior of the thin-walled shell and is integrally formed with the thin-walled shell. The inner wall of the flanged hole is provided with threads for connecting to the water supply pipe.
7. A combined shower faucet according to claim 6, characterized in that, The two flanged holes are respectively connected to the hot water supply pipe and the cold water supply pipe.
Citation Information
Patent Citations
Shower faucet
CN220134733U