Shower faucet main body pre-fixed by backer

Abstract

The utility model provides a backer pre-fixed shower faucet body which comprises a shell with a first welding opening, a second welding opening and two sets of third welding openings. The cold and hot mounting piece is provided with a first inlet, a second inlet and a first outlet, and a water inlet pipe is welded to the first inlet; the switching mounting piece is provided with a third inlet and two groups of second outlets, the middle positioning piece is provided with a third inlet and two groups of second outlets, each positioning hole is connected with each second outlet through a water outlet pipe in a welding manner, and the two water outlet pipes are arranged in parallel at an interval and are provided with backer pieces; the switching mounting piece is arranged from one end of the shell, so that each positioning hole is correspondingly welded with each third welding opening; the cold and hot mounting piece is arranged from the other end of the shell, so that the tail end of the water inlet pipe is guided by the two water outlet pipes and the backer piece to be correspondingly welded with the first welding port; the first outlet and the third inlet are communicated through an inner cavity of the shell; and the second welding port is welded with the second inlet. The utility model has the advantage of effectively improving the hole location positioning accuracy during assembly and welding.

Description

Technical Field

[0001] The utility model relates to the field of shower faucets, in particular to a shower faucet body pre-fixed against a wall. Background Art

[0002] Existing shower faucets are generally solid metal structures, and the water channels are processed by sand casting or drilling. They have problems such as heavy overall weight, high material cost, and complex production process. At the same time, the water channel from the hot water inlet to the mixing valve core is in direct contact with high-temperature hot water, and the temperature will be transmitted to the outer wall through the shell, which can easily cause burns to users when they touch it during use.

[0003] To address the above-mentioned issues, the applicant adopted the method of welding built-in pipes for production. However, in the subsequent production process, the applicant discovered that after the pre-assembly of the accessories at both ends of the shell, the pipes had errors in the position accuracy of the cantilever ends due to bending or shrinkage after welding. When the pipes were assembled on the shell and welded to the shell, it was often difficult to align the pipes (position correction was required), which seriously affected production efficiency. Utility Model Content

[0004] Based on the above problems, the purpose of the present utility model is to provide a pre-fixed shower faucet body with a backrest that has a simple structure, light weight, low production cost, and can effectively avoid burns, while improving the hole positioning accuracy during assembly and welding.

[0005] In view of the above problems, the following technical solutions are provided: a pre-fixed shower faucet body against a wall, comprising a tubular shell, a first welding port and a second welding port spaced apart along its axial direction on the rear side of the shell, and two sets of third welding ports in the middle section of the shell; further comprising a hot and cold mounting member provided with a first inlet, a second inlet and a first outlet, the first inlet being located at its bottom and welded with a water inlet pipe extending outward along its axial direction; further comprising a switching mounting member and an intermediate positioning member spaced apart from its bottom, the switching mounting member being provided with a third inlet and two sets of second outlets located at its bottom, the intermediate positioning member being ring / arc-shaped and provided with two sets of positioning holes opened along its radial direction, each positioning hole corresponding to one end of the inner side of the intermediate positioning member and the second end of the second outlet; Each second outlet is connected by welding of a water outlet pipe, and the two water outlet pipes are arranged parallel to each other and spaced apart, and a backing piece is provided on the side of the switching mounting piece away from the rear side of the shell; the switching mounting piece is inserted from one end of the shell and the intermediate positioning piece is fit to the inner wall of the shell, while the positioning holes are one-to-one corresponding to the third welding ports and are welded and fixed; the hot and cold mounting pieces are inserted from the other end of the shell and the cantilevered end of the water inlet pipe is guided through the gap between the two water outlet pipes to the position of the backing piece, and is pushed and supported by the backing piece to correspond to the position of the first welding port and be welded and fixed; the first outlet and the third inlet are connected to each other through the inner cavity of the shell; the second welding port corresponds to the second inlet and is tightly fitted and welded or connected by welding through a transition pipe.

[0006] The utility model is further configured such that the gap size between the two water outlet pipes corresponds to the diameter of the water inlet pipe; the cantilever end of the water inlet pipe is provided with a bent section bent toward the rear side of the shell, and when the hot and cold mounting parts are placed, the bent section is pushed by the backing piece to approach the first welding port.

[0007] The present invention is further configured such that a sealing ring is provided between the hot and cold mounting member, the switching mounting member and the inner wall of the shell or they are fixed by welding.

[0008] The present invention is further configured such that the positioning hole is formed by drilling or stretching.

[0009] The present invention is further configured such that water inlet joints are welded to the outer wall of the shell at positions corresponding to the first welding port and the second welding port; and a water outlet joint is welded to the outer wall of the shell at a position corresponding to the third welding port.

[0010] The present invention is further configured such that the shell, hot and cold mounting parts, intermediate positioning parts, switching mounting parts, water inlet joint, water outlet joint, water outlet channel and water inlet pipe are made of stainless steel or copper or copper alloy.

[0011] The present invention is further configured such that the first inlet, the second inlet and the first outlet are all located at the bottom of the hot and cold mounting member.

[0012] The present invention is further configured such that the hot and cold mounting member includes a first base plate or a first base plate and a first cylinder, and the first cylinder is fixed to the first base plate by welding or formed by punching and stretching.

[0013] The present invention is further configured such that the second welding port and the second inlet are connected to each other by radially punching holes on the first bottom plate.

[0014] The present invention is further configured such that the third inlet is located at the side or bottom of the switching mounting member, and the second outlet is located at the bottom of the switching mounting member.

[0015] The present invention is further configured such that the switching mounting member includes a second base plate or a second base plate and a second cylinder, and the second cylinder is fixed to the second base plate by welding or formed by punching and stretching.

[0016] Beneficial effects of the utility model:

[0017] 1. The intermediate positioning piece and the switching installation piece are pre-assembled by pre-welding the water outlet pipes. The two water outlet pipes are used to fix the position between the two while the positioning holes on the intermediate positioning piece can be accurately aligned with the third welding joints. At the same time, the backing piece is welded, and then when the hot and cold installation pieces are installed, the gap created by the two water outlet pipes is used to guide and support the end of the water inlet pipe away from the first inlet so that it can be accurately inserted. When it reaches the position of the backing piece, it is supported by the backing piece to achieve positioning constraint with the first welding joint, avoiding the position accuracy error caused by the bending of the cantilever ends of the existing water inlet and outlet pipes or the shrinkage of the welds after welding with the hot and cold installation pieces and the switching installation piece, resulting in the need for continuous position correction before and after installation into the shell to meet the corresponding problems of each hole position; effectively saving labor and improving production efficiency;

[0018] 2. When the bending section contacts the backing piece, it can be aligned with the first welding joint through the extrusion of the backing piece; since both ends of the water outlet are fixed structures, the double water outlet can provide stable positioning for the backing piece;

[0019] 3. The shell and intermediate positioning parts are preferably made of stainless steel pipes by laser cutting. The outlet and inlet pipes are also made of stainless steel pipes, which is convenient for quick adjustment of cutting length according to size specifications;

[0020] 4. Since the water inlet pipe and the water outlet are both located in the inner cavity of the shell, the water inlet pipe is isolated by the inner cavity of the shell regardless of whether it is cold water or hot water. The inner cavity of the shell is filled with warm water mixed with cold and hot water, which is equivalent to the actual output water temperature, so there will be no local overheating or overcooling of the shell temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0022] Figure 2 This is a schematic diagram of the first partially cutaway three-dimensional structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the first partially exploded three-dimensional structure of the utility model.

[0024] Figure 4 This is a schematic diagram of the second partially exploded three-dimensional structure of the present invention.

[0025] Figure 5 This is a schematic diagram of a third partially exploded three-dimensional structure of the present invention.

[0026] Figure 6 This is a schematic diagram of the second partially cutaway three-dimensional structure of the present invention.

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the hot and cold mounting member and the switching mounting member of the present invention from a first perspective.

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the hot and cold mounting member and the switching mounting member of the present invention from a second perspective.

[0029] The meaning of the numbers in the figure are: 10-shell; 11-first welding port; 12-second welding port; 13-third welding port; 14-water inlet connector; 15-water outlet connector; 20-hot and cold installation parts; 201-first bottom plate; 202-first cylinder; 21-first inlet; 22-second inlet; 23-first outlet; 24-water inlet pipe; 241-bending section; 30-switching installation part; 301-second bottom plate; 302-second cylinder; 31-third inlet; 32-second outlet; 40-middle positioning part; 41-positioning hole; 42-water outlet pipe; 50-backrest piece; 60-hot and cold water valve core; 70-switching valve. DETAILED DESCRIPTION

[0030] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] refer to Figures 1 to 8 ,like Figures 1 to 8The shown embodiment is a pre-fixed shower faucet body against a wall, comprising a tubular shell 10, wherein the rear side of the shell 10 is provided with a first welding port 11 and a second welding port 12 spaced apart along its axial direction, and the middle section of the shell 10 is provided with two groups of third welding ports 13; further comprising a hot and cold mounting member 20 provided with a first inlet 21, a second inlet 22 and a first outlet 23, wherein the first inlet 21 is located at the bottom thereof and is welded with a water inlet pipe 24 extending outward along its axial direction; further comprising a switching mounting member 30 and an intermediate positioning member 40 spaced apart from its bottom, wherein the switching mounting member 30 is provided with a third inlet 31 and two groups of second outlets 32 located at its bottom, wherein the intermediate positioning member 40 is annular / arc-shaped and provided with two groups of positioning holes 41 opened along its radial direction, and each positioning hole 41 corresponds to an end on the inner side of the intermediate positioning member 40 and each second outlet 32 ​​is connected by a water outlet. The pipes 42 are welded together, and the two water outlet pipes 42 are arranged parallel to each other and spaced apart, and a backing piece 50 is provided on the side of the switching mounting member 30 away from the rear side of the shell 10; the switching mounting member 30 is inserted from one end of the shell 10 and the intermediate positioning member 40 is fitted with the inner wall of the shell 10, while each positioning hole 41 is one-to-one corresponding to each third welding port 13 and welded and fixed; the hot and cold mounting member 20 is inserted from the other end of the shell 10 and the cantilever end of the water inlet pipe 24 is guided through the gap between the two water outlet pipes 42 to the position of the backing piece 50, and is pushed and supported by the backing piece 50 to correspond to the position of the first welding port 11 and welded and fixed; the first outlet 23 and the third inlet 31 are connected to each other through the inner cavity of the shell 10; the second welding port 12 is tightly fitted with the second inlet 22 and welded and fixed or welded through a transition pipe (not shown in the figure).

[0032] In the above structure, the intermediate positioning member 40 and the switching installation member 30 are pre-assembled by pre-welding the water outlet pipe 42, and the two water outlet pipes 42 are used to fix the position between the two while the positioning holes 41 on the intermediate positioning member 40 can be accurately aligned with each third welding joint 13; at the same time, the backrest piece 50 is welded, and then when the hot and cold installation member 20 is installed, the gap constructed by the two water outlet pipes 42 is used to guide and support the end of the water inlet pipe 24 away from the first inlet 21 so that it can be accurately inserted. When it reaches the position of the backrest piece 50, it is supported by the backrest piece 50 to achieve positioning constraint with the first welding joint 11, avoiding the position accuracy error caused by the bending of the cantilever ends of the existing water inlet pipe 24 and the water outlet pipe 42 or the shrinkage of the weld after welding with the hot and cold installation member 20 and the switching installation member 30, resulting in the need for continuous position correction before and after installation into the shell 10 to meet the corresponding problem of each hole position; effectively saving labor and improving production efficiency.

[0033] In this embodiment, the gap size between the two water outlet pipes 42 corresponds to the diameter of the water inlet pipe 24; the cantilever end of the water inlet pipe 24 is provided with a bent section 241 that bends toward the rear side of the shell 10. When the hot and cold mounting member 20 is placed, the bent section 241 is pushed by the backing piece 50 to approach the first welding port 11.

[0034] In the above structure, the bent section 241 can be aligned with the first welding joint 11 through the extrusion of the backrest piece 50 when it contacts the backrest piece 50; since both ends of the water outlet pipe 42 are fixed structures, the double water outlet pipes 42 can provide stable positioning for the backrest piece 50; the two positioning holes 41 or each third welding joint 13 are arranged at intervals of 90 degrees or 180 degrees along the circumferential direction of the intermediate positioning piece 40.

[0035] In this embodiment, a sealing ring (not shown in the figure) is provided between the hot and cold mounting member 20 , the switching mounting member 30 and the inner wall of the housing 10 or they are fixed by welding.

[0036] In the above structure, the hot and cold mounting member 20, the switching mounting member 30 and the inner wall or end of the shell 10 are preferably fixed by welding.

[0037] In this embodiment, the positioning hole 41 is formed by drilling or stretching.

[0038] In the above structure, the middle positioning member 40 is formed by cutting and blanking a stainless steel pipe, and the positioning hole 41 is formed by punching and stretching toward the center thereof.

[0039] In this embodiment, water inlet joints 14 are welded to the outer wall of the shell 10 at positions corresponding to the first welding port 11 and the second welding port 12 ; and a water outlet joint 15 is welded to the position corresponding to the third welding port 13 .

[0040] In the above structure, the water inlet connector 14 is used to connect the hot and cold water pipes (pre-buried pipes in the wall), and the water outlet connector 15 is used to connect water-using appliances such as shower heads and spray guns.

[0041] In this embodiment, the shell 10, hot and cold mounting parts 20, intermediate positioning parts 40, switching mounting parts 30, water inlet joint 14, water outlet joint 15, water outlet pipe 42, and water inlet pipe 24 are made of stainless steel, copper, or copper alloy.

[0042] In the above structure, the shell 10 and the intermediate positioning member 40 are preferably made of stainless steel pipes by laser cutting, and the water outlet pipe 42 and the water inlet pipe 24 are also made of stainless steel pipes, which is convenient for quickly adjusting the cutting length according to the size specifications.

[0043] In this embodiment, the first inlet 21 , the second inlet 22 and the first outlet 23 are all located at the bottom of the hot and cold installation member 20 .

[0044] In the above structure, the hot and cold installation member 20 is used to install the hot and cold water valve core 60 to achieve mixing and adjusting of the cold water and hot water supplied from the first inlet 21 and the second inlet 22 and then output from the first outlet 23.

[0045] In this embodiment, the hot and cold mounting member 20 includes a first bottom plate 201 or a first bottom plate 201 and a first cylinder 202 , and the first cylinder 202 and the first bottom plate 201 are fixed by welding or formed by punching and stretching.

[0046] In the above structure, the hot and cold mounting parts 20 can be formed in one piece or in separate pieces, and the process has a wider range of applicability.

[0047] In this embodiment, the second welding port 12 and the second inlet 22 are connected to each other by radially punching holes on the first bottom plate 201 .

[0048] In the above structure, the water supply distance is effectively shortened and materials are saved. It is preferably set as a hot water supply channel to reduce heat loss while avoiding local high temperature.

[0049] In this embodiment, the third inlet 31 is located at the side or bottom of the switching installation member 30 , and the second outlet 32 ​​is located at the bottom of the switching installation member 30 .

[0050] In the above structure, the switching mounting member 30 is used to install the switching valve 70 to realize the start and stop and / or switching of the downstream water outlet.

[0051] In this embodiment, the switching mounting member 30 includes a second bottom plate 301 or a second bottom plate 301 and a second cylinder 302 , and the second cylinder 302 and the second bottom plate 301 are fixed by welding or formed by punching and stretching.

[0052] In the above structure, the switch mounting member 30 can be formed in one piece or in separate pieces, and the process has a wider range of applicability.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications based on the above assumptions should also be regarded as within the scope of protection of the present invention.

Claims

1. A shower faucet body with a pre-fixed backrest, comprising a tubular housing, characterized in that: The rear side of the shell is provided with a first welding port and a second welding port spaced apart along its axial direction, and the middle section of the shell is provided with two groups of third welding ports; it also includes a hot and cold mounting member provided with a first inlet, a second inlet and a first outlet, the first inlet is located at its bottom and welded with a water inlet pipe extending outward along its axial direction; it also includes a switching mounting member and an intermediate positioning member spaced apart from its bottom, the switching mounting member is provided with a third inlet and two groups of second outlets located at its bottom, the intermediate positioning member is annular / arc-shaped and is provided with two groups of positioning holes opened along its radial direction, each positioning hole corresponds to one end of the inner side of the intermediate positioning member and is connected to each second outlet by welding through a water outlet pipe, and the two outlets are The water pipes are arranged parallel to each other and spaced apart, and a backing piece is provided on the side away from the rear side of the shell close to one end of the switching mounting piece; the switching mounting piece is inserted from one end of the shell and the intermediate positioning piece is fit to the inner wall of the shell, while each positioning hole is one-to-one corresponding to each third welding port and welded and fixed; the hot and cold mounting pieces are inserted from the other end of the shell and the cantilevered end of the water inlet pipe is guided through the gap between the two water outlet pipes to reach the position of the backing piece, and is pushed and supported by the backing piece to correspond to the position of the first welding port and welded and fixed; the first outlet and the third inlet are connected to each other through the inner cavity of the shell; the second welding port corresponds to the second inlet and is tightly fitted and welded or connected by welding through a transition pipe.

2. The shower faucet body with a pre-fixed backrest according to claim 1, characterized in that: The gap size between the two water outlet pipes corresponds to the diameter of the water inlet pipe; the cantilever end of the water inlet pipe is provided with a bent section bent toward the rear side of the shell, and when the hot and cold mounting parts are placed, the bent section is pushed by the backing piece to approach the first welding port.

3. The shower faucet body with a pre-fixed backrest according to claim 1, characterized in that: A sealing ring is provided between the hot and cold mounting parts, the switching mounting parts and the inner wall of the shell or they are fixed by welding.

4. The shower faucet body with a pre-fixed backrest according to claim 1, characterized in that: The outer wall of the shell is welded with water inlet joints at positions corresponding to the first welding port and the second welding port; and is welded with a water outlet joint at a position corresponding to the third welding port.

5. The shower faucet body with a pre-fixed backrest according to claim 4, characterized in that: The shell, hot and cold installation parts, intermediate positioning parts, switching installation parts, water inlet joint, water outlet joint, water outlet channel and water inlet pipe are made of stainless steel or copper or copper alloy.

6. The pre-fixed shower faucet body according to claim 1, characterized in that: The first inlet, the second inlet and the first outlet are all located at the bottom of the hot and cold installation member.

7. The pre-fixed shower faucet body according to claim 6, characterized in that: The hot and cold mounting member includes a first bottom plate or a first bottom plate and a first cylinder, and the first cylinder and the first bottom plate are fixed by welding or formed by punching and stretching.

8. The pre-fixed shower faucet body according to claim 7, characterized in that: The second welding port and the second inlet are connected to each other by radially punching holes on the first bottom plate.

9. The shower faucet body with a pre-fixed backrest according to claim 1, characterized in that: The third inlet is located at the side or bottom of the switching mounting member, and the second outlet is located at the bottom of the switching mounting member.

10. The shower faucet body with a pre-fixed backrest according to claim 1, characterized in that: The switching mounting member includes a second bottom plate or a second bottom plate and a second cylinder, and the second cylinder and the second bottom plate are fixed by welding or formed by punching and stretching.

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