A lead-free faucet

Abstract

The utility model belongs to faucet technical field, concretely relates to a leadless faucet, including shell, the lower end of installation cavity is shaped with the lower installation port that has been shaped with handle installation port and water outlet pipe installation port in the shell, the upper end of installation cavity is shaped with respectively, the water outlet pipe installation port of handle installation port is shaped with, be provided with fixed base in installation cavity, the side of fixed base is shaped with water outlet part, the water outlet part is shaped with water outlet passage in, the other side of fixed base is shaped with adjusting part, the water outlet passage of adjusting part is shaped with hot water channel, cold water channel and water passage respectively, the utility model discloses through fixed base, fixed base uses plastic and is shaped alone, compared with the conventional metal base, the flow passage shape in the plastic fixed base can be set more complex, also can be more diversified, the improvement of fixed base is easier in later period, and the flow is not contacted with the component containing lead when passing through fixed base, thereby avoiding the lead contained in the faucet dilution in water, realizes the leadless effect of the water flow of tap discharge, is more environmental protection and healthy.

Description

Technical Field

[0001] This utility model relates to the field of faucet technology, and specifically to a lead-free faucet. Background Technology

[0002] For example, Chinese Patent No. CN110332349A discloses a multifunctional faucet, which includes a faucet body for fixing the valve core mounting part, a water inlet, and a water outlet adapted to the valve core base. The faucet body also includes a valve core mounting slope, which is set on one of the surfaces of the faucet body. The valve core mounting part can be controlled by the valve core control valve port provided on the valve core mounting slope, thereby controlling the water inlet and outlet of the faucet. At the same time, the valve core mounting part can be directly fixed in the faucet body through the valve core mounting slope. This structure provides sufficient machining surface for machining the valve core mounting part, and the water outlet mounting part can be directly connected to the valve core mounting part. The valve core mounting part is located on a certain inclined surface of the faucet and is fixedly mounted on the valve core mounting inclined surface. The valve core mounting part includes a valve core seat, a valve core seat inlet, and a valve core seat outlet. The valve core is installed inside the valve core seat, and the valve core seat is installed between the valve core seat inlet and the valve core seat outlet. The valve core seat inlet is at one end of the valve core seat, and the valve core seat outlet is fixed on the upper side of the valve core seat. The outlet pipe mounting part is located directly opposite the valve core mounting inclined surface and is flush with the valve core mounting inclined surface. The valve core mounting part is connected to the outlet pipe mounting part.

[0003] The above-mentioned technical solution has at least the following drawbacks: The main body of the faucet is cast from copper, which is a complex one-piece casting process and copper is expensive; the water flows directly into contact with the faucet body as it passes through the valve core seat inlet and outlet, causing heavy metals such as lead, tin, and chromium contained in the faucet body to leach into the water, resulting in lead in the water discharged from the faucet. This type of faucet is difficult to meet people's current needs for healthy water use. Utility Model Content

[0004] The purpose of this invention is to provide a lead-free faucet to solve the above-mentioned technical problems.

[0005] The purpose of this utility model is achieved as follows: A lead-free faucet includes a shell, an installation cavity formed inside the shell, a lower installation port formed at the lower end of the installation cavity, a handle installation port and a water outlet installation port formed at the upper end of the installation cavity, a fixing seat provided inside the installation cavity, a water outlet formed on one side of the fixing seat, a water outlet channel formed inside the water outlet, an adjustment part formed on the other side of the fixing seat, a hot water channel, a cold water channel and a water passage channel formed inside the adjustment part, a valve core installed on the end face of the adjustment part, one end of the hot water channel and the cold water channel respectively connected to the valve core, one end of the water passage channel connected to the valve core, and the other end of the water passage channel connected to the water outlet channel, a lower pressure ring screwed into the lower installation port, a lower sealing ring provided on the lower end face of the lower pressure ring, a threaded tube screwed into the lower pressure ring, a fastener screwed into the lower outer periphery of the threaded tube, and a sealing gasket provided on the upper end face of the fastener.

[0006] Preferably, the lower outer periphery of the fixing base is formed with a circular seat, the side of the circular seat is provided with a limiting groove, and the inner wall of the outer shell is formed with a vertical limiting strip for the limiting groove to engage.

[0007] Preferably, an annular limiting platform is formed on the outer periphery of the upper end of the water outlet, and an annular limiting part is formed on the inner periphery of the water outlet pipe mounting port, so as to abut against the upper end surface of the annular limiting platform to restrict its movement.

[0008] Preferably, a water outlet pipe is installed inside the water outlet section, an upper sealing ring is provided between the outer periphery of the water outlet pipe and the water outlet section, a limiting member is clamped on the outer periphery of the water outlet pipe, the upper end of the water outlet section extends out of the water outlet pipe installation port and is formed with a threaded part, and a pressure sleeve is threaded onto the outer periphery of the threaded part. Preferably, Preferably, a valve cover is screwed into the handle mounting port, and a control handle is connected to the upper end of the valve core.

[0009] The outstanding and beneficial technical effects of this utility model compared to the prior art are: This utility model features a split-type fixing base design. The fixing base is made of separately molded plastic. Compared with conventional metal bases, the flow channel shape inside the plastic fixing base can be designed to be more complex and diverse. It is also easier to improve the fixing base later. When the water flows through the fixing base, it will not come into contact with lead-containing components, thereby preventing the lead contained in the faucet from being diluted into the water. The water discharged from the faucet can achieve a lead-free effect, which is more environmentally friendly and healthier. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0011] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0012] Figure 3 This is a schematic diagram of the exploded structure of the part of this utility model.

[0013] Figure 4 This is a side view of the structure of this utility model.

[0014] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure at point AA.

[0015] Figure 6 This is a structural diagram of the mounting base and the outer casing.

[0016] Reference numerals: 1. Outer shell; 2. Mounting cavity; 3. Lower mounting port; 4. Handle mounting port; 5. Water outlet mounting port; 6. Fixing base; 7. Water outlet; 8. Water outlet channel; 9. Adjustment part; 10. Hot water channel; 11. Cold water channel; 12. Water passage channel; 13. Valve core; 14. Lower pressure ring; 15. Lower sealing ring; 16. Threaded tube; 17. Fastener; 18. Sealing gasket; 19. Circular seat; 20. Limiting groove; 21. Vertical limiting strip; 22. Annular limiting platform; 23. Annular limiting part; 24. Water outlet pipe; 25. Upper sealing ring; 26. Limiting component; 27. Threaded connection; 28. Pressure sleeve; 29. ​​Valve cover; 30. Control handle. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0018] like Figure 1-6 As shown, a lead-free faucet includes a housing 1, which can be made of a lead-free material. A mounting cavity 2 is formed inside the housing 1. A lower mounting port 3 is formed at the lower end of the mounting cavity 2, and a handle mounting port 4 and a water outlet port 5 are formed at the upper end of the mounting cavity 2. A fixing seat 6 is provided inside the mounting cavity 2. A water outlet 7 is formed on one side of the fixing seat 6, and a water outlet channel 8 is formed inside the water outlet 7. An adjusting part 9 is formed on the other side of the fixing seat 6, and a hot water channel 10, a cold water channel 11, and a water passage 12 are formed inside the adjusting part 9. A valve core 13 is installed on the end face of the adjusting part 9. One end of channel 10 and cold water channel 11 are connected to valve core 13, one end of water passage 12 is connected to valve core 13, and the other end of water passage 12 is connected to outlet channel 8. The valve core controls the amount of cold and hot water entering the outlet channel. The valve core is an existing component, so its specific structure and working principle will not be repeated in this article. A lower pressure ring 14 is screwed into the lower mounting port 3. A lower sealing ring 15 is provided on the lower end face of the lower pressure ring 14. A threaded tube 16 is screwed into the lower pressure ring 14. A fastener 17 is screwed into the lower outer circumference of the threaded tube 16. A sealing gasket 18 is provided on the upper end face of the fastener 17.

[0019] This utility model features a split-type fixing base design. The fixing base is made of plastic and molded separately. Compared with conventional metal bases, the flow channel shape inside the plastic fixing base can be set to be more complex and diverse. It is also easier to improve the fixing base later. When the water flows through the fixing base, it will not come into contact with lead-containing components, thereby preventing the lead contained in the faucet from being diluted into the water. The water discharged from the faucet is lead-free, which is more environmentally friendly and healthier.

[0020] In the actual installation process, the threaded tube 16 is first inserted into the pre-drilled mounting hole inside the basin. Then, the fastener is screwed on from the lower end of the threaded tube upwards, so that the upper end face of the fastener and the lower end face of the lower pressure ring abut against the upper and lower end faces of the mounting hole, respectively, thus fixing the faucet in place. This installation structure is simple and easy to assemble and disassemble. The design of the lower sealing ring 15 and the sealing gasket 18 can improve the sealing performance of the connection and prevent leakage.

[0021] The lower outer periphery of the fixed base 6 is formed with a circular base 19. The side of the circular base 19 is provided with a limiting groove 20. The inner wall of the outer shell 1 is formed with a vertical limiting strip 21 for the limiting groove 20 to be engaged, so that the fixed base 6 is more stable after being installed in the outer shell and to prevent the fixed base 6 from rotating. The lower pressure ring 14 abuts against the lower end face of the circular base 19 to limit the lower end of the fixed base 6.

[0022] The upper outer periphery of the water outlet 7 is formed with an annular limiting platform 22, and the inner periphery of the water outlet pipe installation port 5 is formed with an annular limiting part 23, which abuts against the upper surface of the annular limiting platform 22 to restrict its movement, thereby limiting the upper end of the fixed seat 6 and preventing the fixed seat from shifting.

[0023] A water outlet pipe 24 is installed inside the water outlet section 7. An upper sealing ring 25 is provided between the outer periphery of the water outlet pipe 24 and the water outlet section 7 to improve the sealing of the connection. A limiting member 26 is provided on the outer periphery of the water outlet pipe 24. The upper end of the water outlet section 7 extends out of the water outlet pipe installation port 5 and is formed with a threaded part 27. A pressure sleeve 28 is threaded onto the outer periphery of the threaded part 27 to fix the installation position of the water outlet pipe 24 and prevent it from falling out of the water outlet section 7.

[0024] A valve cover 29 is screwed into the handle mounting port 4, and a control handle 30 is connected to the upper end of the valve core 13 to control the rotation of the valve core 13 to adjust the water inlet flow.

[0025] 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 in the specification 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 the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lead-free faucet, characterized in that, Includes an outer shell (1), an inner cavity (2) is formed inside the outer shell (1), a lower mounting port (3) is formed at the lower end of the inner cavity (2), a handle mounting port (4) and a water outlet mounting port (5) are formed at the upper end of the inner cavity (2), a fixing seat (6) is provided inside the inner cavity (2), a water outlet (7) is formed on one side of the fixing seat (6), a water outlet channel (8) is formed inside the water outlet (7), an adjustment part (9) is formed on the other side of the fixing seat (6), a hot water channel (10), a cold water channel (11) and a water passage channel (12) are formed inside the adjustment part (9), and the adjustment part (9) contains a hot water channel (10), a cold water channel (11) and a water passage channel (12). A valve core (13) is installed on the end face of the valve core (13). One end of the hot water channel (10) and the cold water channel (11) are connected to the valve core (13) respectively. One end of the water passage (12) is connected to the valve core (13), and the other end of the water passage (12) is connected to the water outlet channel (8). A lower pressure ring (14) is screwed into the lower mounting port (3). A lower sealing ring (15) is provided on the lower end face of the lower pressure ring (14). A threaded tube (16) is screwed into the lower pressure ring (14). A fastener (17) is screwed into the lower outer circumference of the threaded tube (16). A sealing gasket (18) is provided on the upper end face of the fastener (17).

2. The lead-free faucet according to claim 1, characterized in that: The lower outer periphery of the fixed seat (6) is formed with a circular seat (19), and a limiting groove (20) is opened on the side of the circular seat (19). The inner wall of the outer shell (1) is formed with a vertical limiting strip (21) for the limiting groove (20) to be engaged.

3. The lead-free faucet according to any one of claims 1 or 2, characterized in that: The upper outer periphery of the water outlet (7) is formed with an annular limiting platform (22), and the inner periphery of the water outlet pipe installation port (5) is formed with an annular limiting part (23) to abut against the upper end surface of the annular limiting platform (22) to restrict its movement.

4. The lead-free faucet according to claim 3, characterized in that: The water outlet (7) is equipped with a water outlet pipe (24). An upper sealing ring (25) is provided between the outer periphery of the water outlet pipe (24) and the water outlet (7). A limiting member (26) is provided on the outer periphery of the water outlet pipe (24). The upper end of the water outlet (7) extends out of the water outlet pipe installation port (5) and is formed with a screw connection part (27). A pressure sleeve (28) is screwed onto the outer periphery of the screw connection part (27).

5. The lead-free faucet according to any one of claims 1 or 2, characterized in that: A valve cover (29) is screwed into the handle mounting port (4), and a control handle (30) is connected to the upper end of the valve core (13).

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