Injection molding and welding integrated faucet inner core

Abstract

An injection molding and welding integrated faucet inner core comprises a water outlet connecting pipe, a valve core mounting pipe and a water inlet pipe, the water inlet pipe is provided with a cold water inlet pipe and a hot water inlet pipe, two water inlet plugs, an embedded core body and a water outlet connector are arranged in the water outlet connecting pipe, a valve core mounting cavity is formed in the upper portion of the valve core mounting pipe, and a cold water through hole and a hot water through hole are formed in the bottom of the valve core mounting pipe. An embedded connection cavity is formed in the middle of the valve element installation pipe and used for injection molding and fusion welding of the embedded element body, the two water inlet plugs penetrate out of the cold water through hole and the hot water through hole respectively after injection molding, and the water inlet plugs penetrating out are subjected to injection molding and fusion welding to the cold water inlet pipe and the hot water inlet pipe so that the water outlet connection pipe, the valve element installation pipe and the water inlet pipe can be connected into a whole. According to the improved structure, the water outlet connecting pipe, the valve element mounting pipe and the water inlet pipe are subjected to injection molding and fusion welding to form the one-time complete faucet inner core, a traditional glue bonding structure is avoided, the strength is high after fusion welding, the overall sealing performance is good, and the stable water passing performance of the faucet inner core is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of faucets, in particular to an injection-molded, welded integral faucet inner core. Background Art

[0002] The faucet core, as the core component of the faucet, is installed inside it. It is mainly responsible for connecting the water inlet pipe, the outlet pipe and the valve core that controls the water flow. When the water flows into the faucet core through the water inlet pipe, it is precisely adjusted and mixed by the valve core and finally flows out smoothly from the outlet pipe.

[0003] The structure and shape of the faucet core are relatively complex. The faucet core in the existing technology cannot be produced in one injection mold. Instead, it needs to be disassembled into multiple parts and then glued together to form a whole. The glue seal installation is time-consuming and labor-intensive, and the watertightness of the glue seal connection is unstable, making it prone to leakage after a period of use. In order to solve the technical problems existing in the existing technology, it is necessary to make improvements to the existing technology. Utility Model Content

[0004] In order to solve the above problems, the purpose of the present utility model is to provide an injection-molded and integrated faucet core. By improving the structure, the faucet core is divided into three parts and formed into one piece through multiple injection molding and welding, so that the inner core tube, valve core mounting tube and water inlet pipe can be tightly combined, which significantly improves the overall sealing performance of the product, greatly reduces assembly time and reduces production costs.

[0005] A faucet inner core is injection-molded and welded together, comprising a water outlet pipe, a valve core mounting tube and a water inlet pipe, wherein the water inlet pipe is provided with a cold water inlet pipe and a hot water inlet pipe, and the water outlet pipe is provided with two water inlet plugs, a chimeric core body and a water outlet joint, the upper portion of the valve core mounting tube is provided with a valve core mounting cavity, the bottom of the valve core mounting tube is provided with a cold water through hole and a hot water through hole, the middle portion of the valve core mounting tube is provided with a chimeric connection cavity, the chimeric connection cavity is used for injection molding and welding the chimeric core body, and after injection molding, the two water inlet plugs respectively pass through the cold water through hole and the hot water through hole, and the water inlet plugs that pass through are then injection-molded and welded to the cold water inlet pipe and the hot water inlet pipe to connect the water outlet pipe, the valve core mounting tube and the water inlet pipe into one.

[0006] Furthermore, the bottom surface of the valve core installation cavity is provided with a cold water inlet, a hot water inlet and a first mixed water outlet, and the mosaic core body is provided with a cold water channel, a hot water channel and a second mixed water outlet which are respectively sealed and connected to the cold water inlet, the hot water inlet and the first mixed water outlet, and the second mixed water outlet is connected to the water outlet joint.

[0007] Furthermore, the chimeric connection cavity is provided with a connection opening, an inlay groove is provided on the side wall of the valve core mounting tube above the connection opening, a corresponding inlay protrusion is provided in the water outlet connecting pipe, and a vertical water through hole is provided in the inlay protrusion connected to the water outlet joint.

[0008] Furthermore, a horizontal water through hole communicating with the second mixing water outlet and the vertical water through hole is provided in the mosaic core.

[0009] Furthermore, the vertical water through hole and the horizontal water through hole and the valve core mounting tube are injection-molded to form a sealed water passage for connecting the second mixed water outlet with the water outlet joint.

[0010] Furthermore, two first positioning holes are provided on the bottom surface of the valve core installation cavity, and two corresponding second positioning holes are provided in the chimeric core body.

[0011] Furthermore, a positioning step is provided at the bottom end of the valve core mounting tube outside the cold water through hole and the hot water through hole.

[0012] The utility model has the following beneficial effects:

[0013] The utility model improves the structure of the water outlet pipe, the valve core installation pipe and the water inlet pipe, so that the water outlet pipe, the valve core installation pipe and the water inlet pipe can be injection-molded and welded together in sequence through the injection molding method to form a complete faucet inner core, avoiding the use of traditional glue bonding structure. After being welded together, the water outlet pipe has high strength and good overall sealing, thereby ensuring its stable water flow performance.

[0014] The utility model provides a water outlet pipe with a vertical water through hole and a horizontal water through hole to form a sealed water through channel for connecting the second mixed water outlet with the water outlet joint, and the structure of the water outlet pipe and the valve core mounting pipe being interlocked and connected with each other is ingenious, ensuring that the two can be firmly coated with rubber and welded together, ensuring smooth water flow and no leakage at the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the inner core of the injection-molded and welded integrated faucet of the present invention.

[0016] Figure 2 This is a cross-sectional schematic diagram of the connection between the water outlet pipe and the valve core mounting pipe of the utility model.

[0017] Figure 3 It is a main schematic diagram of the water outlet pipe of the utility model.

[0018] Figure 4 This is a three-dimensional schematic diagram of one direction of the valve core installation pipe of the utility model.

[0019] Figure 5This is a three-dimensional schematic diagram of the second direction of the valve core installation pipe of the utility model.

[0020] Description of reference numerals:

[0021] 1. Water outlet pipe; 11. Water inlet plug; 12. Chimeric core; 121. Second positioning hole; 13. Water outlet joint; 14. Cold water channel; 15. Hot water channel; 16. Second mixed water outlet; 17. Inlaid protrusion; 18. Vertical water through hole; 19. Horizontal water through hole; 2. Valve core mounting tube; 21. Valve core mounting cavity; 211. First positioning hole; 22. Cold water through hole; 23. Hot water through hole; 24. Chimeric connecting cavity; 241. Connecting opening; 25. Cold water inlet; 26. Hot water inlet; 27. First mixed water outlet; 28. Inlaid groove; 29. ​​Positioning step; 3. Water inlet pipe; 31. Cold water inlet pipe; 32. Hot water inlet pipe. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0023] See also Figure 1-5 As shown, an injection-molded integrated faucet inner core comprises a water outlet pipe 1, a valve core mounting pipe 2 and a water inlet pipe 3. The water inlet pipe 3 is provided with a cold water inlet pipe 31 and a hot water inlet pipe 32. The water outlet pipe 1 is provided with two water inlet plugs 11, a chimeric core body 12 and a water outlet joint 13. The upper part of the valve core mounting pipe 2 is provided with a valve core mounting cavity 21, and the bottom of the valve core mounting pipe 2 is provided with a cold water through hole 22 and a hot water through hole 23. The middle part of the valve core mounting pipe 2 is provided with a chimeric connection cavity 24, and the chimeric connection cavity 24 is used for injection molding and welding the chimeric core body 12. After injection molding, the two water inlet plugs 11 pass through the cold water through hole 22 and the hot water through hole 23 respectively. The water inlet plug 11 of the protruding part is then injection-molded and welded into the cold water inlet pipe 31 and the hot water inlet pipe 32 to connect the water outlet pipe 1, the valve core mounting pipe 2 and the water inlet pipe 3 into one. By improving the structure of the water outlet pipe 1, the valve core mounting pipe 2 and the water inlet pipe 3, the water outlet pipe 1 is first injection-molded, and then the water outlet pipe 1 is placed in the mold and the valve core mounting pipe 2 is injection-molded. Finally, the water outlet pipe 1 and the valve core mounting pipe 2 wrapped together are placed in the mold and then injection-molded to produce the water inlet and outlet pipes 3. The water outlet pipe 1, the valve core mounting pipe 2 and the water inlet pipe 3 are injection-molded and welded with high strength and good overall sealing. Each water channel is independent and complete, the connection is reliably sealed, and it is not easy to leak after long-term use.

[0024] The bottom surface of the valve core installation cavity 21 is provided with a cold water inlet 25, a hot water inlet 26 and a first mixed water outlet 27. The chimeric core body 12 is provided with a cold water passage 14, a hot water passage 15 and a second mixed water outlet 16 which are respectively sealed and connected to the cold water inlet 25, the hot water inlet 26 and the first mixed water outlet 27. The second mixed water outlet 16 is connected to the water outlet joint 13. The chimeric connection cavity 24 is provided with a connection opening 241. An inlay groove 28 is provided on the side wall of the valve core installation tube 2 above the connection opening 241. A corresponding inlay protrusion 17 is provided in the water outlet pipe 1. A vertical water through hole 18 is provided in the inlay protrusion 17 and is connected to the water outlet joint 13. The chimeric core body 12 is provided with a horizontal water through hole 19 which connects the second mixed water outlet 16 and the vertical water through hole 18. After injection molding, the vertical water passage holes 18 and the horizontal water passage holes 19, together with the valve core mounting tube 2, form a sealed water passageway connecting the second mixing water outlet 16 with the water outlet connector 13. The provision of the vertical water passage holes 18 and the horizontal water passage holes 19 allows water output from the first mixing water outlet 27 through the second mixing water outlet 16 to be smoothly delivered to the water outlet connector 13. The designed structure of the water outlet pipe 1 is suitable for injection molding, avoiding the use of a complex core-pulling structure in the mold and ensuring stable and reliable injection molding.

[0025] The bottom surface of the valve core installation cavity 21 is provided with two first positioning holes 211, and the interlocking core body 12 is provided with two corresponding second positioning holes 121; this ensures that the water outlet pipe 1 and the valve core installation pipe 2 are accurately welded together during injection molding and welding. A positioning step 29 is provided at the bottom end of the valve core installation pipe 2 outside the cold water through hole 22 and the hot water through hole 23 to facilitate the alignment of the valve core installation pipe 2 and the water inlet pipe 3 during injection molding and welding.

[0026] The above description is only a specific embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. An injection-molded, welded integrated faucet inner core, comprising a water outlet pipe (1), a valve core mounting pipe (2), and a water inlet pipe (3), wherein the water inlet pipe (3) is provided with a cold water inlet pipe (31) and a hot water inlet pipe (32), and is characterized in that: The water outlet pipe (1) is provided with two water inlet plugs (11), a chimeric core body (12) and a water outlet joint (13); the upper part of the valve core mounting tube (2) is provided with a valve core mounting cavity (21); the bottom of the valve core mounting tube (2) is provided with a cold water through hole (22) and a hot water through hole (23); the middle part of the valve core mounting tube (2) is provided with a chimeric connection cavity (24); the chimeric connection cavity (24) is used for injection molding and welding the chimeric core body (12); and after injection molding, the two water inlet plugs (11) respectively pass through the cold water through hole (22) and the hot water through hole (23); the passed-through part of the water inlet plug (11) is then injection molded and welded into the cold water inlet pipe (31) and the hot water inlet pipe (32), thereby connecting the water outlet pipe (1), the valve core mounting tube (2) and the water inlet pipe (3) into one.

2. The injection-molded, welded, integrated faucet inner core according to claim 1, characterized in that: The bottom surface of the valve core installation cavity (21) is provided with a cold water inlet (25), a hot water inlet (26) and a first mixed water outlet (27); the chimeric core (12) is provided with a cold water passage (14), a hot water passage (15) and a second mixed water outlet (16) which are respectively sealed and connected to the cold water inlet (25), the hot water inlet (26) and the first mixed water outlet (27); the second mixed water outlet (16) is connected to the water outlet joint (13).

3. The injection-molded, welded integrated faucet inner core according to claim 2, characterized in that: The chimeric connection cavity (24) is provided with a connection opening (241), and an inlay groove (28) is provided on the side wall of the valve core mounting tube (2) above the connection opening (241). A corresponding inlay protrusion (17) is provided in the water outlet connecting pipe (1), and a vertical water through hole (18) is provided in the inlay protrusion (17) and is connected to the water outlet joint (13).

4. The injection-molded, welded integrated faucet inner core according to claim 3, characterized in that: The chimeric core (12) is provided with a horizontal water through hole (19) communicating with the second mixed water outlet (16) and the vertical water through hole (18).

5. The injection-molded, welded integrated faucet inner core according to claim 4, characterized in that: The vertical water through hole (18) and the horizontal water through hole (19) are injection-molded with the valve core mounting tube (2) to form a sealed water passage for connecting the second mixed water outlet (16) with the water outlet joint (13).

6. The injection-molded, welded, integrated faucet inner core according to claim 1, characterized in that: Two first positioning holes (211) are provided on the bottom surface of the valve core installation cavity (21), and two corresponding second positioning holes (121) are provided in the chimeric core body (12).

7. The injection-molded, welded integrated faucet inner core according to claim 1, characterized in that: A positioning step (29) is provided at the bottom end of the valve core mounting tube (2) outside the cold water through hole (22) and the hot water through hole (23).

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