Through pipe assembly applied to faucet and faucet

Abstract

The through pipe assembly comprises a die-casting shell and a metal corrugated pipe, the die-casting shell comprises a water outlet pipe, the water outlet pipe is used for conveying water from a valve cavity of the faucet to a water outlet of the faucet, and the metal corrugated pipe comprises a pipe body and a plurality of convex ribs surrounding the periphery of the pipe body. The protruding ribs are arranged in the extending direction of the pipe body, the protruding ribs are formed by expanding outwards from the inner side wall of the pipe body, and the metal corrugated pipe is embedded in the water outlet pipe through casting and communicated with the valve cavity of the faucet and the water outlet of the faucet. According to the utility model, the convex ribs are arranged on the periphery of the pipe body in a surrounding manner, so that the risk that the periphery of the metal corrugated pipe deforms due to stress extrusion when the metal corrugated pipe is embedded into a mold and is arranged in the water outlet pipe through casting is reduced; the convex ribs outside the metal corrugated pipe are placed in a die after being formed, casting materials can be directly poured to form a die-casting shell, and the production process is simple.

Description

Technical Field

[0001] This utility model relates to a pipe-connecting assembly, and more particularly to a pipe-connecting assembly for use in faucets and a faucet. Background Technology

[0002] Chinese patent CN201510156675.X discloses an environmentally friendly bathroom faucet with embedded tube casting, including a valve body, valve core, inlet pipe, outlet pipe, and connecting seat. The valve core is located inside the valve core cavity, and a switch handle is located above the valve core. The valve body is a die-cast part, and the valve core cavity inside the valve body connects to the valve core. The cast bathroom faucet valve body has embedded tubes, including inlet pipe embedded tubes and outlet pipe embedded tubes. The inlet pipe embedded tubes and outlet pipe embedded tubes can be integrated with the valve core seat and then embedded in the mold for casting. The embedded tubes are one or two of pure copper tubes, stainless steel tubes, and pure aluminum tubes. Filler material can be added between the valve body and the embedded tubes to withstand greater pressure. However, during the embedded tube embedding and casting process, when the casting material flows into the outer circumference of the embedded tube, there is a risk that the outer circumference of the embedded tube may deform due to the increased pressure. Adding filler material between the valve body and the embedded tube can solve the problem of embedded tube deformation, but it increases the complexity of the injection molding process. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a pipe assembly for a faucet, comprising: a die-cast housing and a metal corrugated pipe. The die-cast housing includes a water outlet pipe for conveying water from the valve chamber of the faucet to the water outlet of the faucet. The metal corrugated pipe includes a pipe body and several ribs surrounding the outer periphery of the pipe body. The ribs are arranged along the direction of extension of the pipe body and are formed by expanding outward from the inner sidewall of the pipe body. The metal corrugated pipe is embedded in the water outlet pipe by casting and communicates with the valve chamber and the water outlet of the faucet.

[0004] As an improvement to the pipe assembly of the present invention applied to a faucet, the direction of the convex rib is perpendicular to or forms an angle with the extension direction of the metal corrugated pipe.

[0005] As an improvement to the pipe assembly of the present invention applied to a faucet, there is a gap between two adjacent ribs, or two adjacent ribs are connected together.

[0006] As an improvement to the pipe assembly of the present invention applied to a faucet, the interval s between two adjacent ribs is in the range of 0.1mm-20mm.

[0007] As an improvement to the pipe assembly of the present invention applied to a faucet, the cross-section of the metal corrugated tube is flat, the thickness of the rib extending outward from the tube body in the width direction of the cross-section of the metal corrugated tube is a, and the thickness of the rib extending outward from the tube body in the length direction of the cross-section of the metal corrugated tube is b, wherein a>=b.

[0008] As an improvement to the pipe assembly of the present invention applied to faucets, the parameter range of a and b is 0.1mm-8mm.

[0009] As an improvement to the pipe assembly of the present invention applied to a faucet, the die-cast housing further includes an inlet pipe, which is vertically arranged relative to the outlet pipe. A valve chamber is provided at the junction of the outlet pipe and the inlet pipe. A first metal pipe is provided inside the inlet pipe. One end of the first metal pipe forms an inlet, and the other end of the first metal pipe extends to the valve chamber. The wall thickness of the first metal pipe is greater than the wall thickness of the metal corrugated pipe. An outlet is provided at the end of the outlet pipe away from the valve chamber, and the metal corrugated pipe extends from the valve chamber toward the outlet.

[0010] As an improvement to the pipe assembly of the present invention applied to a faucet, it also includes a first connector made of metal, the first connector having a first cavity inside, the water outlet being opened in the first connector and communicating with the first cavity, the metal corrugated tube extending from the valve cavity to the first cavity, and the metal corrugated tube and the first connector being fixed by welding.

[0011] As an improvement to the pipe assembly of the present invention applied to a faucet, both the water outlet pipe and the metal corrugated pipe have a flat cross-section.

[0012] As an improvement to the pipe assembly of this utility model applied to a faucet, the water outlet pipe includes a horizontal pipe and a vertical pipe that is perpendicular to the horizontal bar. The cross-section of both the horizontal pipe and the metal corrugated pipe is flat. The metal corrugated pipe includes a first metal corrugated pipe and a second metal corrugated pipe. Both the first metal corrugated pipe and the second metal corrugated pipe are located in the horizontal pipe. The second metal corrugated pipe is connected between the first metal corrugated pipe and the water outlet and communicates with the first metal corrugated pipe. There are two vertical pipes. The first metal corrugated pipe is located between the two vertical pipes. A second metal pipe that communicates with the first metal corrugated pipe is provided inside the vertical pipe. The wall thickness of the second metal pipe is greater than the wall thickness of the metal corrugated pipe. A switch is provided for each vertical pipe to control the water inlet of the vertical pipe.

[0013] As an improvement to the pipe assembly of the present invention applied to a faucet, it also includes a second connector made of metal, the second connector having a second cavity inside, the second connector being disposed on the first metal corrugated tube, the second cavity communicating with the first metal corrugated tube, the second metal corrugated tube extending from the second cavity toward the water outlet, the first metal corrugated tube and the second connector being fixed by welding, and the second metal corrugated tube and the second connector being fixed by welding.

[0014] As an improvement to the pipe assembly of the present invention applied to a faucet, the feature is that the die-cast housing is provided with a valve cavity, the water outlet pipe extends from the valve cavity toward the water outlet, the water outlet pipe includes a first part and a second part, the first part is connected to the valve cavity, the second part is connected to the first part, the water outlet is located at the end of the second part away from the first part, the metal corrugated pipe is located in the first part, and the cross-section of the first part and the cross-section of the pipe body gradually decrease from the valve cavity toward the second part.

[0015] To address the aforementioned problems in the prior art, this utility model provides a faucet, including a valve core, a switch handle, and the aforementioned pipe assembly. The valve core is disposed within the valve cavity, and the switch handle is connected to the valve core for controlling the valve core.

[0016] The beneficial effects of the technical solution of this utility model are as follows: by providing the ribs around the outer periphery of the tube body, the deformation resistance of the metal corrugated tube is improved, and the risk of deformation of the outer periphery of the metal corrugated tube due to pressure is reduced when the metal corrugated tube is embedded in the mold and cast into the water outlet pipe. After the ribs on the outside of the metal corrugated tube are formed, they can be placed in the mold to directly pour casting material to form a die-cast shell, and the production process is simple. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the pipe assembly of the present invention applied to a faucet and a preferred embodiment of the faucet.

[0018] Figure 2 for Figure 1 A sectional view.

[0019] Figure 3 This is a cross-sectional view along the main viewing direction of the metal corrugated tube of the present invention applied to the pipe assembly of a faucet and the preferred embodiment of the faucet.

[0020] Figure 4 This is a cross-sectional view of the metal corrugated tube of the present invention applied to the pipe assembly of a faucet and a preferred embodiment of the faucet, viewed from the left.

[0021] Figure 5This is a structural schematic diagram of other embodiments of the metal corrugated tube of the present invention applied to the pipe assembly of a faucet and the preferred embodiment of the faucet.

[0022] Figure 6 This is a structural schematic diagram of other embodiments of the metal corrugated tube of the present invention applied to the pipe assembly of a faucet and the preferred embodiment of the faucet.

[0023] Figure 7 This is a structural schematic diagram of the pipe assembly of the present invention applied to a faucet and other embodiments of the faucet.

[0024] Figure 8 This is a schematic diagram of the connection structure between the metal corrugated tube and the second metal tube in the water faucet assembly and other embodiments of the present invention.

[0025] Figure 9 for Figure 8 A sectional view.

[0026] Figure 10 This is a schematic diagram of the pipe assembly of the present invention applied to a faucet and other embodiments of the faucet. Detailed Implementation

[0027] Below, in conjunction with Figures 1 to 10 The present invention will be further described in preferred embodiments and other embodiments for the application of the pipe assembly of the faucet. It should be noted that, without conflict, the technical features described below can be arbitrarily combined to form new embodiments.

[0028] like Figures 1 to 4The diagram shows a preferred embodiment of the faucet and its pipe-connecting assembly. The faucet of this invention includes a valve core 5, a switch handle 61, and a pipe-connecting assembly. The pipe-connecting assembly includes a die-cast housing 1 and a metal corrugated tube 2. The die-cast housing 1 includes a water outlet pipe 11, which transports water from the valve chamber 13 to the water outlet 32. The metal corrugated tube 2 includes a tube body 21 and several ribs 22 surrounding the outer periphery of the tube body 21. The ribs 22 are arranged along the direction of extension of the tube body 21 and are formed by expanding outward from the inner wall of the tube body 21. In this example, the ribs 22 are formed by a water expansion process. The corrugated tube 2 is embedded in the outlet pipe 11 by casting and communicates with the valve chamber 13 and the outlet 32 ​​of the faucet. The valve core 5 is located in the valve chamber 13, and the switch handle 61 is connected to the valve core 5 to control the valve core 5. The corrugated tube 2 is surrounded by ribs 22 to improve its resistance to deformation and reduce the risk of deformation due to pressure on the outer periphery when the corrugated tube 2 is embedded in the mold and cast into the outlet pipe 11. After the ribs 22 on the outside of the corrugated tube 2 are formed, they can be placed in the mold to directly pour casting material to form the die-cast outer shell 1. The production process is simple. In this embodiment, the corrugated tube 2 is made of stainless steel. Figure 3 In this embodiment, the direction in which the rib 22 surrounds is perpendicular to the extension direction of the metal corrugated pipe 2. For example... Figure 6 As shown, in other embodiments, the direction in which the rib 22 surrounds forms an angle with the extending direction of the metal corrugated pipe 2. In other embodiments, such as Figure 3 As shown, two adjacent ribs 22 are joined together. In other embodiments of this invention, such as... Figure 5 As shown, there is a gap between two adjacent ribs 22, and the gap s between two adjacent ribs 22 ranges from 0.1mm to 20mm.

[0029] like Figure 4 In a preferred embodiment, the cross-section of the metal corrugated tube 2 is flat. The thickness of the rib 22 extending outward from the tube body 21 in the width direction of the cross-section of the metal corrugated tube 2 is 'a', and the thickness of the rib 22 extending outward from the tube body 21 in the length direction of the cross-section of the metal corrugated tube 2 is 'b'. In this embodiment, a > b, so that the risk of deformation in the width direction of the cross-section of the metal corrugated tube 2 is less than that in the length direction of the cross-section of the metal corrugated tube 2, thereby keeping the cross-section of the metal corrugated tube 2 flat. The parameters a and b are both in the range of 0.1mm-8mm. Of course, in a practical embodiment, a = b can also be used.

[0030] like Figure 1 and Figure 2 In a preferred embodiment, the die-cast outer shell 1 further includes a water inlet pipe 12, which is vertically arranged relative to the water outlet pipe 11. A valve chamber 13 is provided at the intersection of the water outlet pipe 11 and the water inlet pipe 12. A first metal through pipe 121 is provided inside the water inlet pipe 12. One end of the first metal through pipe 121 forms a water inlet 1211, and the other end of the first metal through pipe 121 extends to the valve chamber 13. The wall thickness of the first metal through pipe 121 is greater than the wall thickness of the metal corrugated pipe 2. A water outlet 32 ​​is provided at the end of the water outlet pipe 11 away from the valve chamber 13. The metal corrugated pipe 2 extends from the valve chamber 13 toward the water outlet 32. In this embodiment, the first metal through pipe is made of stainless steel.

[0031] like Figure 1 and Figure 2 In a preferred embodiment, the pipe assembly of this utility model further includes a first connector 3 made of metal. The first connector 3 has a first cavity 31 inside. The outlet 32 ​​is opened in the first connector 3 and communicates with the first cavity 31. The metal corrugated pipe 2 extends from the valve cavity 13 to the first cavity 31. The metal corrugated pipe 2 and the first connector 3 are fixed by welding. The first connector 3 and the metal corrugated pipe 2 are first formed separately, then welded together and placed in a mold to cast the die-cast outer shell 1, so as to simplify the forming process of the pipe assembly. In this embodiment, the first connector 3 is made of stainless steel.

[0032] like Figures 1-4 In a preferred embodiment, both the water outlet pipe 11 and the metal corrugated pipe 2 have flat cross-sections.

[0033] like Figure 7 , Figure 8 and Figure 9The illustration shows another embodiment of the faucet of this utility model. The difference between this embodiment and the preferred embodiment lies in the structure of the water outlet pipe 11. Specifically, the water outlet pipe 11 of the pipe assembly of this utility model includes a horizontal pipe 111 and a vertical pipe 112 perpendicular to the horizontal bar. Both the horizontal pipe 111 and the metal corrugated pipe 2 have flat cross-sections. The metal corrugated pipe 2 includes a first metal corrugated pipe 2a and a second metal corrugated pipe 2b. Both the first metal corrugated pipe 2a and the second metal corrugated pipe 2b are located on the horizontal pipe 111, and the second metal corrugated pipe 2b is connected to the first metal corrugated pipe 112. A metal corrugated pipe 2a is connected to the water outlet 32 ​​and is in communication with the first metal corrugated pipe 2a. There are two vertical pipes 112. The first metal corrugated pipe 2a is located between the two vertical pipes 112. A second metal through pipe 1121 connected to the first metal corrugated pipe 2a is provided in the vertical pipe 112. The wall thickness of the second metal through pipe 1121 is greater than the wall thickness of the metal corrugated pipe 2a. A switch 6 is provided for each vertical pipe 112 to control the water inlet of the vertical pipe 112. In a specific embodiment, the switch 6 can be located on one side of the water inlet of the faucet. In this embodiment, the pipe assembly of the present invention further includes a second connector 4 made of metal. The second connector 4 has a second cavity 41 inside. The second connector 4 is disposed on the first metal corrugated pipe 2a. The second cavity 41 communicates with the first metal corrugated pipe 2a. The second metal corrugated pipe 2b extends from the second cavity 41 toward the outlet 32. The first metal corrugated pipe 2a and the second connector 4 are fixed by welding. The second metal corrugated pipe 2b and the second connector 4 are fixed by welding. The second connector 4, the first metal corrugated pipe 2a and the second metal corrugated pipe 2b are respectively formed, then welded together and placed in a mold to cast a die-cast outer shell 1, so as to simplify the forming process of the pipe assembly. In this embodiment, the second connector 4 and the second metal pipe 1121 are both made of stainless steel.

[0034] like Figure 10 The following is another embodiment of the faucet of this utility model. The difference between this embodiment and the preferred embodiment lies in the structure of the water outlet pipe 11. Specifically, the die-cast outer shell 1 is provided with a valve cavity 13, and the water outlet pipe 11 extends from the valve cavity 13 toward the water outlet 32. The water outlet pipe 11 includes a first part 11a and a second part 11b. The first part 11a is connected to the valve cavity 13, and the second part 11b is connected to the first part 11a. The water outlet 32 ​​is located at the end of the second part 11b away from the first part 11a. The metal corrugated pipe 2 is located in the first part 11a. The cross-section of the first part 11a and the cross-section of the pipe body 21 gradually decrease from the valve cavity 13 toward the second part 11b.

[0035] The beneficial effects of the technical solution of this utility model are as follows: by providing the ribs around the outer periphery of the pipe body, the deformation resistance of the metal corrugated pipe is improved, and the risk of deformation of the outer periphery of the metal corrugated pipe due to pressure is reduced when the metal corrugated pipe is embedded in the mold and cast into the water outlet pipe. After the ribs on the outside of the metal corrugated pipe are formed, they can be placed in the mold to directly pour casting material to form a die-cast shell, and the production process is simple.

[0036] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A pipe assembly for use in faucets, characterized in that, include: A die-cast housing and a metal corrugated tube are provided. The die-cast housing includes a water outlet pipe for conveying water from the valve chamber of a faucet to the water outlet of the faucet. The metal corrugated tube includes a tube body and a plurality of ribs surrounding the outer periphery of the tube body. The ribs are arranged along the direction of extension of the tube body and are formed by expanding outward from the inner sidewall of the tube body. The metal corrugated tube is embedded in the water outlet pipe by casting and communicates with the valve chamber of the faucet and the water outlet of the faucet.

2. The pipe assembly for a faucet according to claim 1, characterized in that, The direction in which the raised ribs are surrounded is perpendicular to or forms an angle with the extension direction of the metal corrugated tube.

3. The pipe assembly for a faucet according to claim 1, characterized in that, There is a gap between two adjacent ribs, or two adjacent ribs are connected together.

4. The pipe assembly for a faucet according to claim 3, characterized in that, The interval s between two adjacent ribs ranges from 0.1mm to 20mm.

5. The pipe assembly for a faucet according to claim 1, characterized in that, The cross-section of the metal corrugated tube is flat. The thickness of the rib extending outward from the tube body in the width direction of the cross-section of the metal corrugated tube is a, and the thickness of the rib extending outward from the tube body in the length direction of the cross-section of the metal corrugated tube is b, where a>=b.

6. The pipe assembly for a faucet according to claim 5, characterized in that, The parameter ranges for both a and b are 0.1mm-8mm.

7. The pipe assembly for a faucet according to claim 1, characterized in that, The die-cast housing also includes a water inlet pipe, which is vertically arranged relative to the water outlet pipe. A valve cavity is provided at the junction of the water outlet pipe and the water inlet pipe. A first metal passage pipe is provided inside the water inlet pipe. One end of the first metal passage pipe forms a water inlet, and the other end of the first metal passage pipe extends to the valve cavity. The wall thickness of the first metal passage pipe is greater than the wall thickness of the metal corrugated pipe. A water outlet is provided at the end of the water outlet pipe away from the valve cavity, and the metal corrugated pipe extends from the valve cavity toward the water outlet.

8. The pipe assembly for a faucet according to claim 7, characterized in that, It also includes a first connector made of metal, the first connector having a first cavity inside, the water outlet being opened in the first connector and communicating with the first cavity, the metal corrugated pipe extending from the valve cavity to the first cavity, and the metal corrugated pipe and the first connector being fixed by welding.

9. The pipe assembly for a faucet according to claim 8, characterized in that, Both the water outlet pipe and the metal corrugated pipe have flat cross-sections.

10. The pipe assembly for a faucet according to claim 1, characterized in that, The water outlet pipe includes a horizontal pipe and a vertical pipe that is perpendicular to the horizontal bar. The cross-section of both the horizontal pipe and the metal corrugated pipe is flat. The metal corrugated pipe includes a first metal corrugated pipe and a second metal corrugated pipe. Both the first metal corrugated pipe and the second metal corrugated pipe are located in the horizontal pipe. The second metal corrugated pipe is connected between the first metal corrugated pipe and the water outlet and communicates with the first metal corrugated pipe. There are two vertical pipes. The first metal corrugated pipe is located between the two vertical pipes. A second metal through pipe that communicates with the first metal corrugated pipe is provided in the vertical pipe. The wall thickness of the second metal through pipe is greater than the wall thickness of the metal corrugated pipe. A switch is provided for each vertical pipe to control the water inlet of the vertical pipe.

11. The pipe assembly for a faucet according to claim 10, characterized in that, It also includes a second connector made of metal, which has a second cavity inside. The second connector is located on the first metal corrugated pipe, and the second cavity is connected to the first metal corrugated pipe. The second metal corrugated pipe extends from the second cavity toward the water outlet. The first metal corrugated pipe and the second connector are fixed by welding.

12. The pipe assembly for a faucet according to claim 1, characterized in that, The die-cast outer shell is provided with a valve cavity, and the water outlet pipe extends from the valve cavity toward the water outlet. The water outlet pipe includes a first part and a second part. The first part is connected to the valve cavity, and the second part is connected to the first part. The water outlet is located at the end of the second part away from the first part. The metal corrugated pipe is located in the first part. The cross-section of the first part and the cross-section of the pipe body gradually decrease from the valve cavity toward the second part.

13. A faucet, characterized in that, The device includes a valve core, a switch handle, and a pipe assembly for use in a faucet as described in any one of claims 6-9 and 12, wherein the valve core is disposed within the valve cavity, and the switch handle is connected to the valve core for controlling the valve core.

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