A soldered tap
By manufacturing faucets through pipe cutting and welding processes, the environmental pollution and high cost problems caused by sand core casting are solved, achieving low-cost and high-efficiency faucet production that is suitable for various usage scenarios and reduces the risk of freezing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郑缤瑜
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-21
AI Technical Summary
Existing faucets use sand core casting in the manufacturing process, which causes environmental pollution, high production costs, slow processing speed, and low yield.
The faucet body is manufactured using pipe cutting and welding processes. The pipe is bent to form a curved water pipe, and the valve chip and connecting block are formed by stamping. This avoids the use of sand core casting and combines multiple drainage structures to achieve water flow control.
It reduces environmental pollution, lowers production costs, improves processing efficiency and yield, and is suitable for various application scenarios, especially reducing the risk of water freezing in cold regions.
Smart Images
Figure CN224533613U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of faucet technology, specifically to a welding faucet. Background Technology
[0002] A faucet is a widely used appliance in daily life and work. A faucet is connected to a water pipe through a faucet base, which guides the water in the pipe to enter the faucet. The water flow is then guided through the water passage inside the faucet to the water outlet, where the flowing water is output. The water flow can also be controlled by a valve core inside the faucet. It is convenient, simple to use, and highly adaptable.
[0003] Although the existing technologies mentioned above can solve the corresponding technical problems, they still have certain drawbacks: existing faucets are formed by casting, and during processing, they often need to be used with sand cores to make the faucet cavity inside. After processing, the sand cores cannot be recycled and can only be discarded, which can easily lead to environmental pollution. At the same time, the production cost is high, and the faucet also needs to be polished and trimmed after processing, which makes the production speed slow, the process more complicated, and the yield rate low. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a welding faucet that is simple to process, produces less pollution, and has a low cost.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a welded faucet, comprising a faucet body formed by cutting a pipe fitting, a valve core sleeve embedded in the outer wall of the faucet body and welded to the outer wall of the faucet body, a switch valve core installed inside the valve core sleeve, a drain outlet integrally formed on the outer wall of the middle section of the inner cavity of the faucet body that can cooperate with the switch valve core, a stamped and recessed connecting block welded to one end of the faucet body, a bent water inlet structure welded to the inner wall of the connecting block with its top surface welded to the bottom end of the valve core sleeve, and a drain structure connected to the other end of the faucet body.
[0006] A further improvement is that the inner surface of the recessed part of the connecting block is integrally formed with a first internal thread layer.
[0007] A further improvement is that a twisting handle is fitted onto the top of the switch valve core.
[0008] A further improvement is that the bent water inlet structure includes a bent water pipe with one end welded to the inner wall of the connecting block, and a stamped valve chip welded and fixed to the other end of the bent water pipe with its outer edge welded to the bottom end of the valve core sleeve.
[0009] A further improvement is that the drainage structure is an external thread drainage structure, which includes a first drain pipe and a first connecting sleeve fitted at the bottom of the first drain pipe and having an internal thread on its inner wall. The external thread drainage structure also includes an external thread layer integrally formed on the outer wall of the end of the faucet body that can engage with the first connecting sleeve. The bottom of the first drain pipe is inserted into the inner wall of the faucet body and fits against it.
[0010] A further improvement is that the external thread drainage structure also includes an external thread connecting piece welded to the end of the faucet body. The top surface of the external thread connecting piece is provided with an upward-facing external threaded protrusion tube, and the outer surface of the external threaded protrusion tube is integrally formed with external threads.
[0011] A further improvement is that several sealing rings are fitted at the bottom of the first drain pipe.
[0012] A further improvement is that the drainage structure is a bolt-driven drainage structure.
[0013] A further improvement is that the bolt drainage structure includes a second drain pipe that is inserted into the inner wall of the faucet body at its bottom and a second connecting sleeve that is fastened to the bottom of the second drain pipe. The second connecting sleeve has an integrally formed threaded hole. The bolt drainage structure also includes a first through hole located at the corresponding position of the threaded hole on the faucet body. The bolt drainage structure also includes a locking bolt that passes through the first through hole and engages with the threaded hole.
[0014] A further improvement is that the bolt drainage structure includes a second drain pipe and a second connecting sleeve that is fastened to the bottom of the second drain pipe. The second connecting sleeve has an integrally formed threaded hole. The bolt drainage structure also includes a bolt connecting piece welded to the end of the faucet body. The top surface of the bolt connecting piece is provided with an upward bolt protrusion. The bolt protrusion has a second through hole integrally formed at the corresponding position of the threaded hole. The bolt drainage structure also includes a locking bolt that passes through the second through hole and engages with the threaded hole.
[0015] A further improvement is that the bottom of the second drain pipe is fitted with several sealing rings.
[0016] A further improvement is that the drainage structure includes an internally threaded drainage structure.
[0017] A further improvement is that the internal thread drainage structure includes a third drainage pipe and a connecting spiral pipe whose outer wall is attached to the inner wall of the bottom end of the internal thread drainage structure. The internal thread drainage structure also includes an internal thread layer integrally formed on the inner wall of the end of the faucet body. The connecting spiral pipe includes an upper sleeve attached to the inner wall of the third drainage pipe and a lower thread pipe set at the bottom of the upper sleeve and engaged with the internal thread layer.
[0018] A further improvement is that the outer wall of the upper sleeve is fitted with several sealing rings.
[0019] A further improvement is that a sealing ring is fitted on the top of the threaded tube.
[0020] A further improvement is that the internal thread drainage structure includes a third drainage pipe and a connecting spiral pipe whose outer wall is fitted with the inner wall of the bottom end of the internal thread drainage structure. The internal thread drainage structure also includes an internal thread connecting piece welded to the end of the faucet body. The top surface of the internal thread connecting piece is provided with an upward or downward internal thread protrusion. The inner wall of the internal thread protrusion is integrally formed with internal threads. The connecting spiral pipe includes an upper sleeve that fits with the inner wall of the third drainage pipe and a lower threaded pipe that is set at the bottom of the upper sleeve and engages with the internal threads of the inner wall of the internal thread protrusion.
[0021] A further improvement is that the outer wall of the upper sleeve is fitted with several sealing rings.
[0022] A further improvement is that a sealing ring is fitted on the top of the threaded tube.
[0023] A further improvement is that the drainage structure includes a clean water drainage structure.
[0024] A further improvement is that the water purification and drainage structure includes a water purification pipe, the bottom end of which is inserted into and attached to the inner wall of the faucet body.
[0025] A further improvement is that the bottom outer wall of the water purification pipe is fitted with several sealing rings.
[0026] A further improvement is that the water purification and drainage structure includes a water purification pipe, and the water purification and drainage structure also includes a water purification connecting piece welded to the end of the faucet body. The water purification connecting piece is also provided with a water purification protrusion, and the bottom end of the water purification pipe is inserted into and attached to the inner wall of the water purification protrusion.
[0027] A further improvement is that the bottom outer wall of the water purification pipe is fitted with several sealing rings.
[0028] The beneficial effects of this utility model after adopting the above technical solution are as follows: This utility model forms the faucet body and valve core sleeve by cutting pipe fittings, and forms a bent water pipe by bending pipe fittings. Then, the valve chip and connecting block are formed by stamping through a stamping process. The components are then welded to form the faucet. No sand core casting is required during processing, avoiding the generation of waste sand cores that pollute the environment. The processing technology is simple, more controllable, and has a high yield. At the same time, since the water inlet of this utility model is through a small-diameter bent water pipe, there is less water residue in the faucet after use. When used in cold areas, it is not easy for water to freeze and cause the faucet to crack. It is more suitable for cold areas. In addition, there are multiple ways to dissipate water, which can be adapted to different use scenarios such as washbasins and vegetable basins, making it more versatile. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a front view structural schematic diagram of the faucet in the first embodiment of this utility model; Figure 2 This is a structural schematic diagram of the front view cross-section of the faucet in the first embodiment of this utility model; Figure 3 This is a structural schematic diagram of the front view cross-section of the faucet in the first embodiment of this utility model when the first drain pipe is relatively thick; Figure 4 This is a front view structural schematic diagram of the faucet in the second embodiment of this utility model; Figure 5 This is a structural schematic diagram of the front view cross-section of the faucet in the second embodiment of this utility model; Figure 6 This is a structural schematic diagram of the front view cross-section of the faucet in the third embodiment of this utility model; Figure 7 This is a front view structural schematic diagram of the faucet in the fourth embodiment of this utility model; Figure 8 This is a structural schematic diagram of the front view cross-section of the faucet according to the fourth embodiment of this utility model; Figure 9 This is a structural schematic diagram of the front view cross-section of the faucet in the fifth embodiment of this utility model; Figure 10 This is a front view structural schematic diagram of the faucet in the sixth embodiment of this utility model; Figure 11 This is a structural schematic diagram of the front view cross-section of the faucet according to the sixth embodiment of this utility model; Figure 12 This is a structural schematic diagram of the front view cross section of the faucet in the seventh embodiment of this utility model. Detailed Implementation
[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. Example 1:
[0032] See Figure 1-3As shown, the technical solution adopted in this specific embodiment is as follows: a welded faucet, including a faucet body 1 formed by cutting a pipe fitting, a valve core sleeve 3 embedded in the outer wall of the faucet body 1 and welded to the outer wall of the faucet body 1, a switch valve core 31 installed inside the valve core sleeve 3, and a drain outlet 32 integrally formed on the outer wall of the middle section of the inner cavity of the valve core sleeve 3, which can cooperate with the switch valve core 31. A stamped and recessed connecting block 2 is welded to one end of the faucet body 1. A bent water inlet structure is welded to the inner wall of the connecting block 2, with its top surface welded to the bottom end of the valve core sleeve 3. The bent water inlet structure includes a bent water pipe 11 welded to the inner wall of the connecting block 2 at one end and a stamped valve chip 12 welded and fixed to the other end of the bent water pipe 11 and whose outer edge is welded to the bottom end of the valve core sleeve 3.The other end of the faucet body is connected to a drainage structure, which is an externally threaded drainage structure 4. The externally threaded drainage structure 4 includes a first drain pipe 41 and a first connecting sleeve 45 sleeved at the bottom of the first drain pipe 41 and having internal threads on its inner wall. The externally threaded drainage structure 4 also includes an externally threaded layer 44 integrally formed on the outer wall of the end of the faucet body 1, which can engage with the first connecting sleeve 45. The bottom of the first drain pipe 41 is inserted into the inner wall of the faucet body 1 and fits against it. In use, the pipe is first cut to form the faucet body 1, and then another pipe is cut to form the valve core sleeve 3. A perforation is made in the faucet body 1 at the position where the valve core sleeve 3 is installed, allowing the valve core sleeve 3 to be inserted into the faucet body 1 through the perforation. Then, a connecting block 2 and a valve chip 12 are formed by stamping. A small-diameter pipe is taken and bent to form a bent water pipe 11. The valve core sleeve 3 is inserted into the perforation in the faucet body 1, and its outer surface is welded to the faucet body 1. The end of the bent water pipe 11 is welded to the valve chip 12 to form a bent water inlet structure. This bent water inlet structure is inserted into the faucet body 1, aligning the valve chip 12 with the bottom surface of the valve core sleeve 3. The two are then welded together and fixed. Finally, the valve core sleeve 3 is installed inside... Install the switch valve core 31. The switch valve core 31 is existing technology and a standard valve core can be used. Finally, install the connecting block 2 at the other end of the bent water pipe 11, and weld the opening on the inner wall of the connecting block 2 to the end of the bent water pipe 11. Then, weld the connecting block 2 to the water inlet end of the faucet body 1. At this point, the faucet installation is complete. Water is introduced from the bent water pipe 11, and the water flows out from the drain port 32 on the valve core sleeve 3 by rotating the switch valve core 31. When closing the water circuit, rotating the switch valve core 31 will disconnect the water flow. The faucet does not require the use of sand core casting during processing. This design avoids generating waste sand cores that pollute the environment. The processing technology is simple, more controllable, and has a high yield. Simultaneously, an external threaded drainage structure 4 can be connected to the other end of the faucet body. The first drain pipe 41 of the external threaded drainage structure is inserted into the inner wall of the faucet body 1, and the first connecting sleeve 45 is pushed downwards, rotating and engaging with the external thread layer 44. This completes the installation of the external threaded drainage structure 4, allowing water to flow outwards through the first drain pipe 41. Disassembly and installation are convenient, making it suitable for applications requiring frequent maintenance. The inner surface of the recessed part of the connecting block 2 is integrally formed with a first internal thread layer 21, which makes it easier to screw the connecting block 2 directly into the external water pipe through the first internal thread layer 21, making the connection more convenient. The top of the switch valve core 31 is also fitted with a twist handle 5, which makes it easier to open and close the switch valve core 31, making the operation more convenient and improving the user experience. The external thread drainage structure 4 also includes an external thread connecting piece 42 welded to the end of the faucet body 1. The top surface of the external thread connecting piece 42 is provided with an upward external thread upper protrusion tube 43. The outer surface of the external thread upper protrusion tube 43 is integrally formed with external threads. When the diameter of the first drain pipe 41 is small, the first drain pipe 41 can be installed by the external thread connecting piece 42 in conjunction with the external thread upper protrusion tube 43, so that the faucet can be adapted to the small-diameter first drain pipe 41, making it more versatile. The bottom of the first drain pipe 41 is fitted with several sealing rings, which helps to improve the sealing effect between the bottom of the first drain pipe 41 and the faucet body 1 and prevent water leakage. Example 2:
[0033] See Figure 4-5 As shown, the difference between this embodiment and Embodiment 1 is that the bolt drainage structure 6 includes a second drain pipe 61 that is inserted into the inner wall of the faucet body 1 at its bottom and a second connecting sleeve 65 that is fastened to the bottom of the second drain pipe 61. The second connecting sleeve 65 has an integrally formed threaded hole. The bolt drainage structure 6 also includes a first through hole located at the corresponding position of the threaded hole on the faucet body 1. The bolt drainage structure 6 also includes a locking bolt 64 that passes through the first through hole and engages with the threaded hole. The second drain pipe is locked and fixed to the faucet body 1 by the threaded hole on the second drain pipe 61 and the second connecting sleeve 65 outside it, in conjunction with the locking bolt 64. The installation is simpler and more convenient, and the structure is less and the cost is lower. The bottom of the second drain pipe 61 is fitted with several sealing rings, which helps to improve the sealing effect after the second drain pipe 61 is installed. Example 3:
[0034] See Figure 4 , 6 As shown, the difference between this embodiment and Embodiment 2 is that the bolt drainage structure 6 includes a second drain pipe 61 and a second connecting sleeve 65 fastened to the bottom of the second drain pipe 61. The second connecting sleeve 65 has an integrally formed threaded hole. The bolt drainage structure 6 also includes a bolt connecting piece 62 welded to the end of the faucet body 1. The top surface of the bolt connecting piece 62 is provided with an upward bolt protrusion 63. The bolt protrusion 63 has an integrally formed second through hole at the corresponding position of the threaded hole. The bolt drainage structure 6 also includes a locking bolt 64 that passes through the second through hole and engages with the threaded hole. When installing a smaller diameter second drain pipe 61, the second drain pipe 61 and its second connecting sleeve 65 are inserted into the bolt protrusion 63, and the locking bolt 64 is inserted through the second through hole for fixation. At this time, it can be adapted to a smaller diameter second drain pipe 61, making it more versatile. Example 4:
[0035] See Figure 7-8As shown, the difference between this embodiment and Embodiment 1 is that the drainage structure includes an internally threaded drainage structure 7, which includes a third drain pipe 71 and a connecting spiral pipe whose outer wall is fitted with the inner wall of the bottom end of the internally threaded drainage structure 7. The internally threaded drainage structure 7 also includes an internally threaded layer 77 integrally formed on the inner wall of the end of the faucet body 1. The connecting spiral pipe includes an upper sleeve 75 fitted with the inner wall of the third drain pipe 71 and a lower threaded pipe 74 disposed at the bottom of the upper sleeve 75 and engaged with the internally threaded layer 77. In use, the third drain pipe... The tube is first inserted into the upper sleeve 75 at the top of the connecting spiral tube, and the lower threaded tube 74 connected to the upper sleeve 75 is screwed into and fixed to the inner thread layer 77 for fixation. Disassembly can be performed quickly by simply unscrewing the lower threaded tube 74. At the same time, the connecting spiral tube is existing technology and can use a snap-on type faucet rotary adapter disclosed in patent number CN202420999662.3 or other similar accessories. This embodiment is simple to install and disassemble, and it is easy to adjust the water outlet angle of the third drain pipe 71, which is especially suitable for use in a vegetable basin. The outer wall of the upper sleeve 75 is fitted with several sealing rings, which helps to improve the sealing effect between the upper sleeve 75 and the third drain pipe 71 and prevent water leakage. A sealing ring is fitted at the top of the threaded pipe 74, which helps to improve the sealing effect between the end of the threaded pipe 74 and the faucet body 1 and prevent water leakage. Example 5:
[0036] See Figure 7 , 9 As shown, the difference between this embodiment and embodiment four is that: the internal thread drainage structure 7 includes a third drainage pipe 71 and a connecting spiral pipe whose outer wall is attached to the inner wall of the bottom end of the internal thread drainage structure 7. The internal thread drainage structure 7 also includes an internal thread connecting piece 72 welded to the end of the faucet body 1. The top surface of the internal thread connecting piece 72 is provided with an upward or downward internal thread protrusion 73. The inner wall of the internal thread protrusion 73 is integrally formed with internal threads. The connecting spiral pipe includes an upper sleeve 75 attached to the inner wall of the third drainage pipe 71 and a lower thread pipe 74 set at the bottom of the upper sleeve 75 and engaged with the internal thread of the inner wall of the internal thread protrusion 73. During installation, if the diameter of the third drainage pipe 71 and the connecting spiral pipe is small, the lower thread pipe 74 of the connecting spiral pipe can be connected to the internal thread protrusion 73, thereby adapting to the smaller diameter third drainage pipe 71 and the connecting spiral pipe, resulting in better adaptability. Example 6:
[0037] See Figure 10-11As shown, the difference between this embodiment and Embodiment 1 is that the drainage structure includes a water purification drainage structure 8, which includes a water purification pipe 81. The bottom end of the water purification pipe 81 is inserted into and attached to the inner wall of the faucet body 1. When this faucet is used in a purified water pipe that can be directly used for drinking, the connection can be made by directly inserting the water purification pipe 81 into the inner wall of the faucet body 1. Since the water pressure in the purified water pipe is low, it is simpler to directly insert the water purification pipe 81 for connection. The water purification pipe 81 is made of food-grade stainless steel, and drinking water can be directly obtained through the water purification pipe 81. It is very convenient to use and install. Several sealing rings are fitted on the outer wall of the bottom of the water purification pipe 81, which helps to improve the sealing effect at the bottom of the water purification pipe 81 and prevent water leakage during use; Example 7:
[0038] See Figure 10 , 12 As shown, the difference between this embodiment and embodiment six is that the water purification and drainage structure 8 includes a water purification pipe 81 and a water purification connecting piece 82 welded to the end of the faucet body 1. The water purification connecting piece 82 is also provided with a water purification protrusion 83. The bottom end of the water purification pipe 81 is inserted into and attached to the inner wall of the water purification protrusion 83. When in use, if the diameter of the water purification pipe 81 is small, it can be connected to the water purification pipe 81 through the water purification protrusion 83, thereby adapting to water purification pipes with smaller diameters and making it more adaptable.
[0039] The working principle of this utility model is as follows: First, the pipe is cut to form the faucet body 1. Then, another pipe is cut to form the valve core sleeve 3. A hole is drilled in the faucet body 1 at the position where the valve core sleeve 3 is installed, allowing the valve core sleeve 3 to be inserted into the faucet body 1. Next, a connecting block 2 and a valve chip 12 are formed by stamping. A small-diameter pipe is taken and bent to form a bent water pipe 11. The valve core sleeve 3 is inserted into the hole in the faucet body 1, and its outer surface is welded to the faucet body 1. The end of the bent water pipe 11 is welded to the valve chip 12 to form a bent water inlet structure. This bent water inlet structure is inserted into the faucet body 1, aligning the valve chip 12 with the bottom surface of the valve core sleeve 3. The two are then welded together and fixed. Finally, a switch is installed inside the valve core sleeve 3. The valve core 31 is existing technology and a standard valve core can be used. Finally, the connecting block 2 is installed at the other end of the bent water pipe 11, and the opening of the inner wall of the connecting block 2 is welded to the end of the bent water pipe 11. Then, the connecting block 2 is welded to the water inlet end of the faucet body 1. At this time, the faucet installation is completed. Water is introduced from the bent water pipe 11, and the water flows out from the drain port 32 on the valve core sleeve 3 by rotating the switching valve core 31. When the water circuit is closed, rotating the switching valve core 31 can disconnect the water flow. The faucet does not require sand core casting during processing, avoiding the generation of waste sand cores that pollute the environment. The processing technology is simple, more controllable, and has a high yield. At the same time, different drainage structures can achieve different drainage functions, making it highly applicable.
[0040] This utility model aims to protect the structure of the product. The model numbers of the components are not the focus of this utility model's protection, as they are common technology. Any component on the market that can achieve the functions described above can be used as an option. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.
Claims
1. A welding faucet, characterized in that: The faucet body (1) is formed by cutting pipe fittings. A valve core sleeve (3) is embedded in the outer wall of the faucet body (1) and welded to the outer wall of the faucet body (1). A switch valve core (31) is installed inside the valve core sleeve (3). The valve core sleeve (3) is inserted into the middle section of the inner cavity of the faucet body (1) and has an integrally formed drain outlet (32) that can cooperate with the switch valve core (31). A stamped and recessed connecting block (2) is welded to one end of the faucet body (1). A bent water inlet structure is welded to the inner wall of the connecting block (2) and the top surface of one end is welded to the bottom end of the valve core sleeve (3). A drain structure is connected to the other end of the faucet body.
2. A welding faucet according to claim 1, characterized in that: The inner surface of the recessed part of the connecting block (2) is integrally formed with a first internal thread layer (21).
3. A welding faucet according to claim 1, characterized in that: The top of the switch valve core (31) is also fitted with a twist handle (5).
4. A welding faucet according to claim 1, characterized in that: The bent water inlet structure includes a bent water pipe (11) with one end welded to the inner wall of the connecting block (2) and a stamped valve chip (12) welded and fixed to the other end of the bent water pipe (11) and with its outer edge welded to the bottom end of the valve core sleeve (3).
5. A welding faucet according to claim 1, characterized in that: The drainage structure is an external thread drainage structure (4). The external thread drainage structure (4) includes a first drain pipe (41) and a first connecting sleeve (45) sleeved on the bottom of the first drain pipe (41) and having an internal thread on the inner wall. The external thread drainage structure (4) also includes an external thread layer (44) integrally formed on the outer wall of the end of the faucet body (1) that can mesh with the first connecting sleeve (45). The bottom of the first drain pipe (41) is inserted into the inner wall of the faucet body (1) and fits against each other.
6. A welding faucet according to claim 5, characterized in that: The external thread drainage structure (4) also includes an external thread connecting piece (42) welded to the end of the faucet body (1). The top surface of the external thread connecting piece (42) is provided with an upward external thread convex tube (43), and the outer surface of the external thread convex tube (43) is integrally formed with an external thread.
7. A welding faucet according to claim 5, characterized in that: The bottom of the first drain pipe (41) is fitted with several sealing rings.
8. A welding faucet according to claim 1, characterized in that: The drainage structure is a bolt drainage structure (6).
9. A welding faucet according to claim 8, characterized in that: The bolt drainage structure (6) includes a second drain pipe (61) that is inserted into the inner wall of the faucet body (1) at its bottom and a second connecting sleeve (65) that is fastened to the bottom of the second drain pipe (61). The second connecting sleeve (65) has an integrally formed threaded hole. The bolt drainage structure (6) also includes a first through hole located at the corresponding position of the threaded hole on the faucet body (1). The bolt drainage structure (6) also includes a locking bolt (64) that passes through the first through hole and engages with the threaded hole.
10. A welding faucet according to claim 8, characterized in that: The bolt drainage structure (6) includes a second drain pipe (61) and a second connecting sleeve (65) fastened to the bottom of the second drain pipe (61). The second connecting sleeve (65) has an integrally formed threaded hole. The bolt drainage structure (6) also includes a bolt connecting piece (62) welded to the end of the faucet body (1). The top surface of the bolt connecting piece (62) is provided with an upward bolt protrusion (63). The bolt protrusion (63) has an integrally formed second through hole at the corresponding position of the threaded hole. The bolt drainage structure (6) also includes a locking bolt (64) that passes through the second through hole and engages with the threaded hole.
11. A welding faucet according to claim 9 or 10, characterized in that: The bottom of the second drain pipe (61) is fitted with several sealing rings.
12. A welding faucet according to claim 1, characterized in that: The drainage structure includes an internally threaded drainage structure (7).
13. A welding faucet according to claim 12, characterized in that: The internal thread drainage structure (7) includes a third drain pipe (71) and a connecting spiral pipe whose outer wall is attached to the inner wall of the bottom end of the internal thread drainage structure (7). The internal thread drainage structure (7) also includes an internal thread layer (77) integrally formed on the inner wall of the end of the faucet body (1). The connecting spiral pipe includes an upper sleeve (75) attached to the inner wall of the third drain pipe (71) and a lower thread pipe (74) set at the bottom of the upper sleeve (75) and engaged with the internal thread layer (77).
14. A welding faucet according to claim 13, characterized in that: The outer wall of the upper sleeve (75) is fitted with several sealing rings.
15. A welding faucet according to claim 13, characterized in that: A sealing ring is fitted on the top of the threaded tube (74).
16. A welding faucet according to claim 12, characterized in that: The internal thread drainage structure (7) includes a third drain pipe (71) and a connecting spiral pipe whose outer wall is attached to the inner wall of the bottom end of the internal thread drainage structure (7). The internal thread drainage structure (7) also includes an internal thread connecting piece (72) welded to the end of the faucet body (1). The top surface of the internal thread connecting piece (72) is provided with an upward or downward internal thread protrusion (73). The inner wall of the internal thread protrusion (73) is integrally formed with an internal thread. The connecting spiral pipe includes an upper sleeve (75) attached to the inner wall of the third drain pipe (71) and a lower thread pipe (74) located at the bottom of the upper sleeve (75) and engaged with the internal thread of the inner wall of the internal thread protrusion (73).
17. A welding faucet according to claim 16, characterized in that: The outer wall of the upper sleeve (75) is fitted with several sealing rings.
18. A welding faucet according to claim 16, characterized in that: A sealing ring is fitted on the top of the threaded tube (74).
19. A welding faucet according to claim 1, characterized in that: The drainage structure includes a clean water drainage structure (8).
20. A welding faucet according to claim 19, characterized in that: The water purification and drainage structure (8) includes a water purification pipe (81), the bottom end of which is inserted into and attached to the inner wall of the faucet body (1).
21. A welding faucet according to claim 20, characterized in that: The bottom outer wall of the water purification pipe (81) is fitted with several sealing rings.
22. A welding faucet according to claim 19, characterized in that: The water purification and drainage structure (8) includes a water purification pipe (81), and the water purification and drainage structure (8) also includes a water purification connecting piece (82) welded to the end of the faucet body (1). The water purification connecting piece (82) is also provided with a water purification protrusion (83). The bottom end of the water purification pipe (81) is inserted into and attached to the inner wall of the water purification protrusion (83).
23. A welding faucet according to claim 22, characterized in that: The bottom outer wall of the water purification pipe (81) is fitted with several sealing rings.