Multi-material combined vegetable basin faucet

Abstract

A multi-material combined vegetable basin faucet comprises a faucet body made of metal and a handle arranged on one side of the faucet body, a valve element matched with the handle is arranged in the faucet body, a faucet neck made of plastic is arranged above the faucet body, an inserting hole is formed in the center of the upper end face of the faucet body, and the lower end of the faucet neck is inserted into the inserting hole. An annular supporting groove is formed in the inner wall of a port of the lower end of the faucet neck. A heat insulation pipe matched with the supporting groove is arranged in the supporting groove; a fixing part attached to the lower end face of the faucet neck is arranged on the outer wall of the lower end of the heat insulation pipe. The fixing part is fixed on the heat insulation pipe through a fixing structure; and a movable distance is formed between the lower surface of the fixing part and the bottom of the inserting hole. According to the multi-material combined vegetable basin faucet, multi-material combination can be achieved, the sealing performance of the faucet neck inserted into the faucet body can still be guaranteed after the faucet neck made of plastic materials is aged, and the water leakage prevention effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of faucets, in particular to a multi-material combined kitchen sink faucet. Background Art

[0002] A kitchen sink faucet refers to a faucet installed on a kitchen sink for use. Generally, kitchen sink faucets are made of all-metal materials, but with the deepening of the concept of environmental protection, some kitchen sink faucets will adopt a combination of multiple materials. The faucet body used to install the valve core is still made of metal, while the faucet neck used to transport water is made of plastic. This multi-material combination can not only achieve environmental protection, but also reduce the weight and production cost of the kitchen sink faucet.

[0003] Kitchen sink faucets are often used in kitchens. In cold winter weather, if you use cold water to wash dishes, it is not only difficult to clean the oil stains on the dishes, but also easy to endanger the health of the cleaning staff. Therefore, the kitchen sink faucet will be connected to the hot water pipe. Although the faucet neck made of plastic has a certain heat resistance, long-term hot water supply will also accelerate the aging of the faucet neck. The faucet neck is directly plugged into the faucet body. If the faucet neck is aged, the end of the faucet neck plugged into the faucet body will become loose, resulting in a larger gap between the outer wall of the faucet neck end and the inner wall of the socket hole on the faucet body. Even with the presence of an O-ring, the sealing between the outer wall of the faucet neck end and the inner wall of the socket hole cannot be guaranteed, resulting in water leakage. Summary of the Invention

[0004] The utility model aims to solve the existing technical problem by providing a multi-material combination kitchen sink faucet, which can not only realize the multi-material combination, but also ensure the sealing of the faucet neck when it is inserted into the faucet body after the faucet neck made of plastic material ages, thereby preventing water leakage.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] The utility model discloses a multi-material combination kitchen basin faucet, comprising a faucet body made of metal, a handle arranged on one side of the faucet body, a valve core matched with the handle arranged in the faucet body, a faucet neck made of plastic material arranged above the faucet body, a plug hole arranged in the center of the upper end face of the faucet body, the lower end of the faucet neck is inserted into the plug hole, an annular supporting groove is arranged on the inner wall of the lower end port of the faucet neck; a heat insulation tube matched with the same is arranged in the supporting groove; a fixing part is arranged on the outer wall of the lower end of the heat insulation tube, which is fitted with the lower end face of the faucet neck; the fixing part is fixed to the heat insulation tube by a fixing structure; there is a fixing hole between the lower surface of the fixing part and the bottom of the plug hole. Movable spacing; the inner wall of the upper end opening of the plug-in hole is provided with an extrusion cone surface that is wide at the top and narrow at the bottom, and the outer wall of the faucet neck at a position corresponding to the upper end opening of the plug-in hole is provided with an annular sealing groove; a sealing ring matching it is provided in the sealing groove, and the sealing ring is made of rubber; the outer wall of the upper end of the sealing ring is provided with an annular pressure-bearing part, and there is an extrusion spacing between the lower surface of the pressure-bearing part and the upper end surface of the faucet body; the outer wall of the sealing ring is provided with a pressure-bearing conical surface that fits with the extrusion cone surface; the outer cover of the faucet body has an outer shell, and the outer shell is made of plastic; an extrusion structure is provided on the upper end of the outer shell; the extrusion structure can press the sealing ring down through the pressure-bearing part.

[0007] The extrusion structure includes a fastening cover arranged above the outer shell; a ring-shaped screw joint is provided on the upper surface of the outer shell, and an external thread is provided on the outer wall of the screw joint; the fastening cover is screwed to the outside of the screw joint through the external thread; a through hole is provided in the center of the fastening cover, and the faucet neck passes through the through hole; the upper inner wall of the fastening cover is in contact with the upper surface of the pressure part; and an adjustable distance is provided between the lower end surface of the fastening cover and the upper surface of the outer shell.

[0008] An annular auxiliary groove is provided on the inner wall of the upper side of the fastening cover, and the position of the auxiliary groove corresponds to the position of the screw joint.

[0009] The lower surface of the fastening cover is provided with an annular rib, which encloses the fixing portion.

[0010] An upper hole is provided in the center of the upper surface of the shell and is communicated with its internal space; a lower hole is provided in the center of the lower surface of the shell and is communicated with its internal space; the upper end of the faucet body passes through the upper hole upward; a limiting plate is provided on the upper outer wall of the faucet body and is in contact with the upper inner wall of the shell; symmetrical positioning notches are provided on the left and right sides of the limiting plate; positioning blocks matching the positioning notches are provided on the left and right sides of the upper inner wall of the shell; an annular limiting plug is screwed in the lower hole, and the upper surface of the limiting plug is in contact with the lower surface of the faucet body.

[0011] The outer wall of the lower end of the faucet neck located in the plug-in hole is provided with a plurality of annular grooves evenly distributed in the axial direction; and an O-ring matching with the annular groove is provided in the annular groove.

[0012] The fixing structure includes a plurality of screw holes evenly arranged in a circle on the lower end surface of the faucet neck; a plurality of grooves coaxial with the screw holes are provided on the lower surface of the fixing part; a through hole communicating with the screw hole is provided at the center of the bottom of the groove; a fixing screw passes upward through the through hole and is screwed into the screw hole, and the head of the fixing screw is pressed on the bottom of the groove.

[0013] The upper end surface of the insulation tube is in contact with the upper side wall of the support groove; the inner wall of the insulation tube is coplanar with the inner wall of the faucet neck; the upper side wall of the support groove is higher than the sealing groove.

[0014] The beneficial effects of the utility model are:

[0015] Compared with the prior art, the presence of the heat-insulating tube of the multi-material combination kitchen sink faucet of the utility model structure can effectively isolate hot water, prevent the high temperature of hot water from acting on the inner wall of the lower end of the faucet neck for a long time, and effectively prevent the lower end of the faucet neck connected to the plug-in hole from rapidly aging due to long-term contact with hot water, thereby effectively preventing the deformation and loosening of the lower end of the faucet neck due to aging. The presence of the heat-insulating tube can form a support inside the lower end of the faucet neck, pressing the outer wall of the lower end of the faucet neck tightly against the inner wall of the plug-in hole, effectively ensuring the stability and sealing between the two. At the same time, the presence of the sealing ring can further seal the gap between the outer wall of the lower end of the faucet neck and the inner wall of the plug-in hole. Even if the gap between the outer wall of the lower end of the faucet neck and the inner wall of the plug-in hole becomes larger, the sealing between the outer wall of the lower end of the faucet neck and the inner wall of the plug-in hole can always be guaranteed, effectively avoiding water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the utility model multi-material combination kitchen sink faucet;

[0017] Figure 2 yes Figure 1 An enlarged view of part A;

[0018] Figure 3 1. It is a structural diagram of the fastening cover;

[0019] Figure 4 It is a structural diagram of the faucet body;

[0020] Figure 5 It is a structural schematic diagram of a multi-material combination kitchen sink faucet of the present utility model. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] See also Figures 1 to 5The utility model provides a multi-material combination kitchen basin faucet, comprising a faucet body 1 made of metal, a handle 2 provided on one side of the faucet body 1, a valve core matched with the handle 2 provided in the faucet body 1, a faucet neck 3 made of plastic material provided above the faucet body 1, a plug hole 4 provided in the center of the upper end surface of the faucet body 1, the lower end of the faucet neck 3 is inserted into the plug hole 4, an annular support groove 5 is provided on the inner wall of the lower end port of the faucet neck 3; a heat insulation tube 6 matched therewith is provided in the support groove 5; a fixing portion 7 is provided on the outer wall of the lower end of the heat insulation tube 6, which is in contact with the lower end surface of the faucet neck 3; the fixing portion 7 is fixed to the heat insulation tube 6 by a fixing structure; a movable spacing 8 is provided between the lower surface of the fixing portion 7 and the bottom of the plug hole 4; the The inner wall of the upper end of the plug-in hole 4 is provided with an extrusion cone surface 9 which is wider at the top and narrower at the bottom. The outer wall of the faucet neck 3 corresponding to the position of the upper end of the plug-in hole 4 is provided with an annular sealing groove 10; a sealing ring 11 matching it is provided in the sealing groove 10, and the sealing ring 11 is made of rubber; the outer wall of the upper end of the sealing ring 11 is provided with an annular pressure-bearing part 12, and an extrusion gap 13 is provided between the lower surface of the pressure-bearing part 12 and the upper end surface of the faucet body 1; the outer wall of the sealing ring 11 is provided with a pressure-bearing cone surface 14 which fits with the extrusion cone surface 9; the outer cover of the faucet body 1 is provided with an outer shell 15, and the outer shell 15 is made of plastic; the upper end of the outer shell 15 is provided with an extrusion structure; the extrusion structure can press the sealing ring 11 down through the pressure-bearing part 12.

[0023] The extrusion structure includes a fastening cover 16 arranged above the outer shell 15; a ring-shaped screw joint 17 is provided on the upper surface of the outer shell 15, and an external thread 18 is provided on the outer wall of the screw joint 17; the fastening cover 16 is screwed to the outside of the screw joint 17 through the external thread 18; a through hole 19 is provided in the center of the fastening cover 16, and the faucet neck 3 passes through the through hole 19; the upper inner wall of the fastening cover 16 is in contact with the upper surface of the pressure-bearing part 12; an adjustable distance 20 is provided between the lower end surface of the fastening cover 16 and the upper surface of the outer shell 15.

[0024] An annular auxiliary groove 21 is provided on the inner wall of the upper side of the fastening cover 16 , and the position of the auxiliary groove 21 corresponds to the position of the screw joint 17 .

[0025] The lower surface of the fastening cover 16 is provided with an annular rib 22 , which encloses the fixing portion 7 .

[0026] An upper hole 23 is provided at the center of the upper surface of the shell 15 and is communicated with its internal space; a lower hole 24 is provided at the center of the lower surface of the shell 15 and is communicated with its internal space; the upper end of the faucet body 1 passes through the upper hole 23 upward; a limiting plate 25 is provided on the upper outer wall of the faucet body 1 and is in contact with the upper inner wall of the shell 15; symmetrical positioning notches 26 are provided on the left and right sides of the limiting plate 25; positioning blocks 27 matching the positioning notches 26 are provided on the left and right sides of the upper inner wall of the shell 15; an annular limiting plug 28 is screwed into the lower hole 24, and the upper surface of the limiting plug 28 is in contact with the lower surface of the faucet body 1.

[0027] The outer wall of the lower end of the faucet neck 3 located in the insertion hole 4 is provided with a plurality of annular grooves 29 evenly distributed in the axial direction; an O-ring 30 matching therewith is provided in the annular groove 29 .

[0028] The fixing structure includes a plurality of screw holes 31 evenly arranged in a circle on the lower end surface of the faucet neck 3; a plurality of grooves 32 coaxial with the screw holes 31 are provided on the lower surface of the fixing portion 7; a through hole 33 communicating with the screw hole 31 is provided at the center of the bottom of the groove 32; a fixing screw 34 passes upward through the through hole 33 and is screwed into the screw hole 31, and the head of the fixing screw 34 is pressed on the bottom of the groove 32.

[0029] The upper end surface of the insulation tube 6 is in contact with the upper groove wall of the support groove 5 ; the inner wall of the insulation tube 6 is coplanar with the inner wall of the faucet neck 3 ; the upper groove wall of the support groove 5 is higher than the sealing groove 10 .

[0030] The method of using the utility model is as follows:

[0031] The lower end of the faucet body 1 can be connected to the cold water pipeline and the hot water pipeline at the same time through the inner hole of the limit plug 28. When water needs to be delivered, the valve core can be opened by the handle 2. At this time, the cold water in the cold water pipeline and the hot water in the hot water pipeline are mixed in the valve core to form mixed water with the actual required temperature, which then flows into the faucet neck 3 and finally flows out from the faucet mouth at the end of the faucet neck 3 for use.

[0032] The presence of the heat-insulating tube 6 can effectively isolate hot water, prevent the high temperature of hot water from acting on the inner wall of the lower end of the faucet neck 3 for a long time, and effectively prevent the lower end of the faucet neck 3 connected to the plug-in hole 4 from rapidly aging due to long-term contact with hot water, thereby effectively preventing the lower end of the faucet neck 3 from deforming and loosening due to aging. The presence of the heat-insulating tube 6 can form a support in the lower end of the faucet neck 3, pressing the outer wall of the lower end of the faucet neck 3 tightly against the inner wall of the plug-in hole 4, effectively ensuring the stability and sealing between the two. At the same time, the presence of the sealing ring 11 can further seal the gap between the outer wall of the lower end of the faucet neck 3 and the inner wall of the plug-in hole 4. Even if the gap between the outer wall of the lower end of the faucet neck 3 and the inner wall of the plug-in hole 4 becomes larger, the sealing between the outer wall of the lower end of the faucet neck 3 and the inner wall of the plug-in hole 4 can always be guaranteed, effectively avoiding water leakage.

[0033] If the gap between the outer wall of the lower end of the faucet neck 3 and the inner wall of the plug-in hole 4 becomes larger, the sealing effect of the sealing ring 11 can be effectively increased by the fastening cover 16. When the sealing effect of the sealing ring 11 needs to be increased, the fastening cover 16 can be rotated to move the fastening cover 16 downward along the trajectory of the external thread 18. The adjustment distance 20 between the lower end surface of the fastening cover 16 and the upper surface of the shell 15 ensures that the fastening cover 16 can move downward smoothly. When the fastening cover 16 moves downward, the upper inner wall of the fastening cover 16 pushes the pressure-receiving part 12 downward. Since there is an extrusion distance 13 between the lower surface of the pressure-receiving part 12 and the upper end surface of the faucet body 1, the existence of the extrusion distance 13 can ensure that the upper inner wall of the fastening cover 16 can effectively push the pressure-receiving part 12 downward. Part 12, when the pressure part 12 moves downward, the pressure cone surface of the outer wall of the sealing ring 11 will move downward along the extrusion cone surface 9, and the extrusion cone surface 9 is wide at the top and narrow at the bottom. When the pressure cone surface 14 moves downward along the extrusion cone surface 9, the extrusion cone surface 9 will squeeze the pressure cone surface 14 inward, so that the inner wall of the sealing ring further fits with the inner wall of the sealing groove 10, so that the sealing ring 11 is completely filled in the gap between the inner wall of the upper end of the plug-in hole 4 and the outer wall of the lower end of the faucet neck 3, thereby ensuring the sealing between the inner wall of the plug-in hole 4 and the outer wall of the lower end of the faucet neck 3 to the greatest extent. At the same time, the cooperation between the fastening cover 16 and the sealing ring 11 can effectively fix the lower end of the faucet neck 3 in the plug-in hole 4, thereby ensuring the stability between the two.

[0034] An annular auxiliary groove 21 is provided on the inner wall of the upper side of the fastening cover 16. The position of the auxiliary groove 21 corresponds to the position of the screw joint 17. The existence of the auxiliary groove 21 can effectively accommodate the existence of the screw joint 17, ensuring that when the fastening cover 16 moves downward, it provides accommodation space for the relatively upward-moving screw joint 17, thereby ensuring that the fastening cover 16 moves downward smoothly.

[0035] An annular rib 22 is provided on the lower surface of the fastening cover 16. The rib 22 can effectively enclose the fixing part 7 to prevent the upper part of the sealing ring 11 from deforming outward, so that the sealing ring 11 can further fit into the inner wall of the sealing groove 10 when squeezed by the extrusion cone surface, thereby ensuring the sealing effect of the sealing ring 11.

[0036] An upper hole 23 is provided in the center of the upper surface of the shell 15 and is communicated with its internal space. A lower hole 24 is provided in the center of the lower surface of the shell 15 and is communicated with its internal space. The upper end of the faucet body 1 passes through the upper hole 23 upward, and the upper outer wall of the faucet body 1 is provided with a limiting plate 25 that fits with the upper inner wall of the shell 15. The left and right sides of the limiting plate 25 are provided with mutually symmetrical positioning notches 26. The left and right sides of the upper inner wall of the shell 15 are provided with positioning blocks 27 that match the positioning notches 26. An annular limiting plug 28 is screwed in the lower hole 24, and the upper surface of the limiting plug 28 fits with the lower surface of the faucet body 1. This fixing method facilitates disassembly and assembly between the shell 15 and the faucet body 1. By simply unscrewing the limiting plug 28 from the lower hole 24, the faucet body 1 can be quickly removed from the shell 15. The shell 15 is made of plastic, which can further reduce the weight of the kitchen sink faucet, reduce production costs, and further improve environmental protection.

[0037] The outer wall of the lower end of the faucet neck 3 located in the plug-in hole 4 is provided with a plurality of annular grooves 29 that are evenly distributed axially, and an O-ring 30 that matches it is provided in the annular groove 29. The presence of the O-ring 30 can play an auxiliary sealing effect. While the sealing ring 11 realizes the sealing, it further uses itself to ensure the confidentiality between the outer wall of the lower end of the faucet neck 3 and the inner wall of the plug-in hole 4.

[0038] The fixing structure includes a plurality of screw holes 31 evenly arranged in a circle on the lower end surface of the faucet neck 3, and a plurality of grooves 32 coaxial with the screw holes 31 are provided on the lower surface of the fixing part 7. A through hole 33 which is in communication with the screw hole 31 is provided at the center of the bottom of the groove 32. A fixing screw 34 passes upward through the through hole 33 and is screwed into the screw hole 31. The head of the fixing screw 34 is pressed on the bottom of the groove 32. This fixing method facilitates the disassembly and assembly of the fixing part 7, thereby facilitating the quick removal of the insulation tube 6 from the lower end port of the faucet neck 3.

[0039] The upper end face of the insulation tube 6 fits with the upper groove wall of the support groove 5, and the inner wall of the insulation tube 6 is coplanar with the inner wall of the faucet neck 3. This structural design can ensure the smoothness of water flow through the insulation tube 6 into the faucet neck 3, and the upper groove wall of the support groove 5 is higher than the sealing groove 10, ensuring that the insulation tube 6 can form a support in the lower end port of the faucet neck 3 when the sealing groove 10 is squeezed downward by the fastening cover 16, effectively ensuring that the squeezed sealing ring 11 can effectively fill the gap between the inner wall of the upper end hole of the plug-in hole 4 and the outer wall of the faucet neck 3.

Claims

1. A multi-material combination kitchen sink faucet, comprising a metal faucet body, a handle located on one side of the faucet body, a valve core provided within the faucet body that matches the handle, a plastic faucet neck located above the faucet body, a socket provided at the center of the upper end surface of the faucet body, into which the lower end of the faucet neck is inserted, and characterized by: The inner wall of the lower end port of the faucet neck is provided with an annular supporting groove; the supporting groove is provided with an insulating tube matching it; the outer wall of the lower end of the insulating tube is provided with a fixing part that fits with the lower end surface of the faucet neck; the fixing part is fixed to the insulating tube by a fixing structure; there is a movable spacing between the lower surface of the fixing part and the bottom of the plug-in hole; the inner wall of the upper end opening of the plug-in hole is provided with an extrusion cone surface that is wide at the top and narrow at the bottom, and the outer wall of the faucet neck corresponding to the position of the upper end opening of the plug-in hole is provided with an annular sealing groove; a sealing ring matching it is provided in the sealing groove, and the sealing ring is made of rubber material; the outer wall of the upper end of the sealing ring is provided with an annular pressure-bearing part, and there is an extrusion spacing between the lower surface of the pressure-bearing part and the upper end surface of the faucet body; the outer wall of the sealing ring is provided with a pressure-bearing cone surface that fits with the extrusion cone surface; the outer cover of the faucet body is provided with an outer shell, and the outer shell is made of plastic material; the upper end of the outer shell is provided with an extrusion structure; the extrusion structure can press the sealing ring down through the pressure-bearing part.

2. The multi-material combination kitchen sink faucet according to claim 1, characterized in that: The extrusion structure includes a fastening cover arranged above the outer shell; a ring-shaped screw joint is provided on the upper surface of the outer shell, and an external thread is provided on the outer wall of the screw joint; the fastening cover is screwed to the outside of the screw joint through the external thread; a through hole is provided in the center of the fastening cover, and the faucet neck passes through the through hole; the upper inner wall of the fastening cover is in contact with the upper surface of the pressure part; and an adjustable distance is provided between the lower end surface of the fastening cover and the upper surface of the outer shell.

3. The multi-material combination kitchen sink faucet according to claim 2, characterized in that: An annular auxiliary groove is provided on the inner wall of the upper side of the fastening cover, and the position of the auxiliary groove corresponds to the position of the screw joint.

4. The multi-material combination kitchen sink faucet according to claim 2, characterized in that: The lower surface of the fastening cover is provided with an annular rib, which encloses the fixing portion.

5. The multi-material combination kitchen sink faucet according to claim 1, characterized in that: An upper hole is provided in the center of the upper surface of the shell and is communicated with its internal space; a lower hole is provided in the center of the lower surface of the shell and is communicated with its internal space; the upper end of the faucet body passes through the upper hole upward; a limiting plate is provided on the upper outer wall of the faucet body and is in contact with the upper inner wall of the shell; symmetrical positioning notches are provided on the left and right sides of the limiting plate; positioning blocks matching the positioning notches are provided on the left and right sides of the upper inner wall of the shell; an annular limiting plug is screwed in the lower hole, and the upper surface of the limiting plug is in contact with the lower surface of the faucet body.

6. The multi-material combination kitchen sink faucet according to claim 1, characterized in that: The outer wall of the lower end of the faucet neck located in the plug-in hole is provided with a plurality of annular grooves evenly distributed in the axial direction; and an O-ring matching with the annular groove is provided in the annular groove.

7. The multi-material combination kitchen sink faucet according to claim 1, characterized in that: The fixing structure includes a plurality of screw holes evenly arranged in a circle on the lower end surface of the faucet neck; a plurality of grooves coaxial with the screw holes are provided on the lower surface of the fixing part; a through hole communicating with the screw hole is provided at the center of the bottom of the groove; a fixing screw passes upward through the through hole and is screwed into the screw hole, and the head of the fixing screw is pressed on the bottom of the groove.

8. The multi-material combination kitchen sink faucet according to claim 1, characterized in that: The upper end surface of the insulation tube is in contact with the upper side wall of the support groove; the inner wall of the insulation tube is coplanar with the inner wall of the faucet neck; the upper side wall of the support groove is higher than the sealing groove.

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