Connector structure for drawing pipe, drawing pipe structure and faucet

Abstract

The utility model provides a connector structure used for a drawing pipe, a drawing pipe structure and a faucet, the connector structure comprises a connector body and connectors located at the two ends of the connector body, and the connectors are used for being connected with the drawing pipe; the connector structure further comprises a magnetic component and an embedding piece. The magnetic component is sleeved outside the connector body in an insert injection molding mode, the connector body partially wraps the outer side of the magnetic component, the magnetic component is partially exposed outside the connector body to form an exposed space, and the embedding piece is formed on the exposed space in an insert injection molding mode. The connector body and the embedding piece are combined to wrap the magnetic component. The magnetic component is fixed to the connector body in a two-time insert injection molding mode, the thickness of the magnetic component arranged on the connector body is small, the diameter of the connector body is small, the appearance is neat, the integrity is good, the connector body is more attractive, and part forming is better facilitated.

Description

Technical Field

[0001] The utility model relates to a joint structure for a pull-out pipe, a pull-out pipe structure and a faucet. Background Art

[0002] The pull-out faucet allows people to freely move the pull-out head on the faucet for water discharge, making it easier for people to clean, and is therefore widely loved by consumers. Existing pull-out faucets generally use a manual valve core to control the water discharge, which is still inconvenient to use. Therefore, someone has developed an electronic pull-out faucet, which can make water discharge when people pull the pull-out head, and stop the water discharge when the pull-out head is reset, making it more convenient to use. The existing electronic pull-out faucet is provided with a magnetic switch component and a solenoid valve for controlling whether the pull-out hose of the faucet is filled with water, and the pull-out head is matched with the water outlet end of the pull-out hose; wherein the magnetic switch component includes a magnet and a magnetic sensor for sensing the magnet, the magnet is set on the pull-out hose, and the magnetic sensor is matched with the faucet body; when the pull-out head is in the initial position, the magnetic sensor senses the magnetism of the magnet and controls the solenoid valve to close, so that the pull-out head does not discharge water; and when people pull the pull-out head and drive the pull-out hose to move, the magnet moves with the pull-out hose and the magnetic sensor cannot sense the magnetism of the magnet. At this time, the magnetic sensor controls the solenoid valve to open and water discharges from the pull-out head.

[0003] Chinese utility model CN204878977U discloses an intelligent control faucet, which includes a magnetic induction device and an infrared sensor; the magnetic induction device is installed on the water outlet pipe and is connected to the intelligent control module through a feeder or directly. The magnetic starting mechanism is a magnetic ring and is arranged on the pull-out hose. The pull-out hose includes a first hose and a second hose, and the magnetic starting mechanism is arranged between the first hose and the second hose. A metal sub-joint is fixed to the connecting end of the first hose, and a metal female joint is fixed to the connecting end of the second hose. The two metal joints form a female-sub joint sealing connection, wherein the metal sub-joint is provided for the magnetic ring to be fitted. When the pull-out hose retracts to the initial position of the faucet body, the magnetic ring is just in the area where the Hall element is closed. In this utility model, the magnetic ring is fitted on the metal sub-joint, so the magnetic ring is directly exposed outside the pull-out hose, which is easy to cause collision and cracking during the pulling and pulling process of the pull-out hose. In this utility model, in order to ensure the integrity of the entire pull-out hose and protect the pull-out hose, a protective cover is further provided outside the metal sub-joint, the metal mother-and-child head and the magnetic ring to prevent the magnet from colliding and cracking. Not only does this increase the cost, but the protective cover will definitely further increase the diameter of the joint, which will incidentally affect the diameter of the entire pull-out hose (in order to adapt to the diameter of the joint), affecting the smoothness of extraction. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art, solve the problems of magnet leakage, cracking and noise caused by collision with the inner cavity of the extraction faucet, ensure that the outer diameter of the magnet joint is minimized under the joint flow, facilitate smooth extraction and resetting, and provide a joint structure for a pull-out tube, a pull-out tube structure and a faucet.

[0005] In order to solve the above technical problems, the utility model provides a joint structure for a pull-out tube, the joint structure comprising a joint body and connectors located at both ends of the joint body, the connectors being used to connect the pull-out tube; the joint structure also comprises a magnetic component and a fitting;

[0006] The magnetic component is sleeved on the outside of the connector body by insert injection molding, the connector body partially covers the outside of the magnetic component, the magnetic component is partially exposed outside the connector body to form an exposed space, the embedded component is molded on the exposed space by insert injection molding, and the connector body and the embedded component are combined to cover the magnetic component.

[0007] In a more preferred embodiment, the portion of the joint body covering the outside of the magnetic component includes a first connecting flange and a plurality of first covering walls, wherein the first connecting flange is formed on one axial end of the magnetic component, the plurality of first covering walls cover the outside of the circumferential wall of the magnetic component, and one end of the plurality of first covering walls is connected to the first connecting flange; the plurality of first covering walls are arranged at intervals along the circumference of the magnetic component, and the interval between two adjacent first covering walls forms the exposed space.

[0008] In a more preferred embodiment, the fitting includes a second connecting flange and a plurality of second covering walls, wherein the second connecting flange is formed on the other end of the magnetic component along the axial direction, the plurality of second covering walls cover the outside of the peripheral wall of the magnetic component, and one end of the plurality of second covering walls is connected to the second connecting flange; the second covering wall is formed between the two adjacent first covering walls to be firmly connected to the first covering wall.

[0009] In a more preferred embodiment, the outer circumference of the first covering wall is flush with the outer circumference of the second covering wall.

[0010] In a more preferred embodiment, the first covering wall and the second covering wall form a cylindrical structure, and the diameter of the cylindrical structure is the same as the outer diameter of the drawing tube.

[0011] In a more preferred embodiment, the inner wall portion of the magnetic component is embedded in the connector body, and the outer wall portion of the magnetic component is embedded in the first covering wall and the second covering wall.

[0012] The utility model provides a joint structure for a pull-out tube, the joint structure comprising a joint body and connectors located at both ends of the joint body, the connectors being used to connect the pull-out tube; the joint structure also comprises a magnetic component;

[0013] The magnetic component is sleeved on the connector body by insert injection molding, and the connector body is entirely covered on the outside of the magnetic component. A positioning hole exposing the magnetic component is formed in the connector body during the molding process, and the positioning hole is used to allow the mold to position the magnetic component.

[0014] In a more preferred embodiment, the number of the positioning holes is one or more. The utility model also provides a pull-out tube structure, comprising a pull-out tube and the joint structure; the pull-out tube comprises a first tube body and a second tube body, and two connectors of the joint structure are respectively inserted into the first tube body and the second tube body.

[0015] The utility model also provides a faucet, comprising the pull-out tube structure; the faucet comprises a magnetic induction switch, and the magnetic component of the pull-out tube structure is used to correspond to the magnetic induction switch.

[0016] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0017] The magnetic component is sleeved on the outside of the connector body by insert injection molding, the connector body is partially covered on the outside of the magnetic component, the magnetic component is partially exposed outside the connector body to form an exposed space, the insert is molded on the exposed space by insert injection molding, and the connector body and the insert are combined to cover the magnetic component. The magnetic component is fixed to the connector body by two insert injection moldings. The thickness of the magnetic component after the connector body is relatively thin, so that the diameter of the connector body is relatively small. Under the premise of ensuring the flow rate of the connector, the diameter of the connector body can be minimized, which is conducive to the extraction and resetting of the pull-out tube. The appearance of the connector structure is neat, the integrity is good, it is more beautiful, and it is more conducive to the molding of parts.

[0018] The joint structure includes a joint body and connectors at both ends of the joint body, and the connectors are used to connect the pull-out tube; the joint structure also includes a magnetic component; the magnetic component is sleeved on the joint body by insert injection molding, and the joint body is entirely covered on the outside of the magnetic component. The joint body forms a positioning hole exposing the magnetic component during the molding process, and the positioning hole is used to allow the mold to position the magnetic component. The magnetic component can be covered by only one injection molding, and the process is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional exploded schematic diagram of the drawer tube structure in the preferred embodiment of the utility model;

[0020] Figure 2 This is a three-dimensional exploded schematic diagram of the joint structure in the preferred embodiment of the utility model;

[0021] Figure 3 This is a three-dimensional exploded schematic diagram of the joint structure in the preferred embodiment of the utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the joint structure in the preferred embodiment of the utility model;

[0023] Figure 5 It is a cross-sectional schematic diagram of the joint structure in the preferred embodiment of the utility model;

[0024] Figure 6 It is a cross-sectional schematic diagram of the joint structure and two sections of the drawing tube in the preferred embodiment of the utility model;

[0025] Figure 7 This is a three-dimensional schematic diagram of the middle joint structure and two-section drawing tube that are only molded by one injection molding. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0027] See also Figure 1-6 A joint structure for a pull-out tube, the joint structure comprises a joint body 1 and connectors 2 located at both ends of the joint body 1. The diameter of the connector 2 is smaller than that of the joint body 1, and a plurality of ring bodies 21 are arranged at intervals along the axial direction on the outer wall of the connector 2. The connector 2 can be inserted into the pull-out tube, and the joint structure comprises an internal flow channel 3, which is connected between the two connectors 2, and the joint structure can connect two sections of the pull-out tube.

[0028] The joint structure also includes a magnetic component 4 and a fitting 5. The magnetic component 4 is sleeved on the outside of the joint body 1 by insert injection molding, the joint body 1 is partially covered on the outside of the magnetic component 4, and the magnetic component 4 is partially exposed outside the joint body 1 to form an exposed space 6. The fitting 5 is molded on the exposed space 6 by insert injection molding, and the joint body 1 and the fitting 5 are combined to cover the magnetic component 4. The magnetic component 4 is fixed on the joint body 1 by two insert injection moldings. The thickness of the magnetic component 4 after being arranged on the joint body 1 is relatively thin. The water-passing part of the joint body 1 can ensure double wall thickness, while ensuring the mechanical strength of the parts, and avoiding assembly, without the need for matching structure and assembly gap, so the product diameter can be smaller, which is more conducive to the extraction space. Under the premise of ensuring the joint flow, the diameter of the joint body 1 can be minimized, which is conducive to the extraction and resetting of the pull-out tube. The appearance of the joint structure is neat, the integrity is good, it is more beautiful, and it is more conducive to the molding of parts.

[0029] The magnetic component 4 is sleeved on the outside of the connector body 1 by insert injection molding, the connector body 1 partially covers the outside of the magnetic component 4, and the magnetic component 4 is partially exposed outside the connector body 1 to form an exposed space 6. When in the mold, the exposed space can be used as the area where the mold positioning column passes through, which plays a role of giving way and facilitates the positioning of the magnetic component 4 during the first insert injection molding. After the second injection molding, the entire exposed space 6 can be covered, the overall appearance is simple and beautiful, the magnetic component will not be exposed, and the magnetic component 4 does not need to be positioned again during the second injection molding.

[0030] The part of the joint body 1 covering the outside of the magnetic component 4 includes a first connection flange 11 and a plurality of first covering walls 12. The first connection flange 11 is formed on one end of the magnetic component 4 in the axial direction. The plurality of first covering walls 12 cover the outside of the peripheral wall of the magnetic component 4. One end of the plurality of first covering walls 12 is connected to the first connection flange 11. The plurality of first covering walls 12 are arranged at intervals along the circumference of the magnetic component 4, and the interval between two adjacent first covering walls 12 forms the exposed space 6. In this embodiment, the first connection flange 11 is annular, and the first covering wall 12 is in the shape of an arc wall. In this embodiment, two first covering walls 12 are provided, and the two first covering walls 12 are arranged at an interval of 180 degrees.

[0031] The insert 5 includes a second connection flange 51 and a plurality of second covering walls 52. The second connection flange 51 is formed on the other end of the magnetic component 4 in the axial direction. The plurality of second covering walls 52 cover the outer peripheral wall of the magnetic component 4. One end of the plurality of second covering walls 52 is connected to the second connection flange 51. The second covering wall 52 is formed between the two adjacent first covering walls 12 to be fastened to the first covering wall 12. In this embodiment, the second connection flange 51 is annular, and the second covering wall 52 is in the shape of an arc wall. In this embodiment, two second covering walls 52 are provided, and the two second covering walls 52 are arranged 180 degrees apart.

[0032] The first covering wall 12 is flush with the outer circumference of the second covering wall 52. The first covering wall 12 and the second covering wall 52 form a cylindrical structure 8, and the diameter of the cylindrical structure 8 is the same as the outer diameter of the pull-out tube. The cylindrical structure 8 formed by the first covering wall 12 and the second covering wall 52 is adapted to the outer diameter of the pull-out tube. Since the diameter of the joint structure can be made smaller, the outer diameter of the pull-out tube can also be made smaller, and there is no need to make adjustments based on the outer diameter of the joint structure.

[0033] The inner wall portion of the magnetic component 4 is embedded in the joint body 1 , and the outer wall portion of the magnetic component 4 is embedded in the first covering wall 12 and the second covering wall 52 , so that the outer diameter of the joint body 1 can be reduced.

[0034] See also Figure 7 , showing a structure that has been molded by insert injection molding only once. In this structure, since the insert (i.e., the magnetic component 4) needs to be positioned in the mold, the mold has a positioning column against the magnetic component 4. After the insert is injected, a positioning hole 121 is formed on the wall covering the magnetic component 4. This structure can be molded by injection molding only once, and the process is simple.

[0035] The utility model also provides a pull-out tube structure, which includes a pull-out tube and a joint structure. The pull-out tube includes a first tube section 71 and a second tube section 72, and two connectors 2 of the joint structure are respectively inserted into the first tube section 71 and the second tube section 72.

[0036] The utility model also provides a faucet, including the pull-out tube structure. The faucet includes a magnetic induction switch, and the magnetic component 4 of the pull-out tube structure is used to correspond to the magnetic induction switch. The faucet also includes a solenoid valve for controlling whether the pull-out tube structure of the faucet is filled with water, and the pull-out head is matched with the water outlet end of the pull-out tube structure. The magnetic induction switch is matched with the faucet, and when the pull-out head is in the initial position, the magnetic induction switch senses the magnetism of the magnetic component 4 and controls the solenoid valve to close, so that the pull-out head does not discharge water. When people pull the pull-out head and drive the pull-out tube structure to move, the magnetic component 4 moves with the pull-out tube structure, so that the magnetic induction switch cannot sense the magnetism of the magnetic component. At this time, the magnetic induction switch controls the solenoid valve to open and the pull-out head discharges water. In this embodiment, the magnetic component 4 is a magnet.

[0037] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. A joint structure for a pulling pipe, characterized in that: The joint structure includes a joint body and connectors located at both ends of the joint body, and the connectors are used to connect the pull-out tube; the joint structure also includes a magnetic component and a fitting; The magnetic component is sleeved on the outside of the connector body by insert injection molding, the connector body partially covers the outside of the magnetic component, the magnetic component is partially exposed outside the connector body to form an exposed space, the embedded component is molded on the exposed space by insert injection molding, and the connector body and the embedded component are combined to cover the magnetic component.

2. A joint structure for a pulling pipe according to claim 1, characterized in that: The part of the joint body covering the outside of the magnetic component includes a first connecting flange and a plurality of first covering walls, wherein the first connecting flange is formed on one end of the magnetic component along the axial direction, the plurality of first covering walls cover the outside of the circumferential wall of the magnetic component, and one end of the plurality of first covering walls is connected to the first connecting flange; the plurality of first covering walls are arranged at intervals along the circumference of the magnetic component, and the interval between two adjacent first covering walls forms the exposed space.

3. A joint structure for a pulling pipe according to claim 2, characterized in that: The fitting includes a second connecting flange and a plurality of second covering walls, wherein the second connecting flange is formed on the other end of the magnetic component along the axial direction, the plurality of second covering walls cover the peripheral wall of the magnetic component, and one end of the plurality of second covering walls is connected to the second connecting flange; the second covering wall is formed between two adjacent first covering walls to be firmly connected to the first covering wall.

4. A joint structure for a pulling pipe according to claim 3, characterized in that: The first covering wall is flush with the outer circumference of the second covering wall.

5. A joint structure for a pulling pipe according to claim 4, characterized in that: The first covering wall and the second covering wall form a cylindrical structure, and the diameter of the cylindrical structure is the same as the outer diameter of the drawing tube.

6. A joint structure for a pulling pipe according to claim 3, characterized in that: The inner wall portion of the magnetic component is embedded in the joint body, and the outer wall portion of the magnetic component is embedded in the first covering wall and the second covering wall.

7. A joint structure for a pulling pipe, characterized in that: The joint structure includes a joint body and connectors located at both ends of the joint body, and the connectors are used to connect the pull-out tube; the joint structure also includes a magnetic component; The magnetic component is sleeved on the connector body by insert injection molding, and the connector body is entirely covered on the outside of the magnetic component. A positioning hole exposing the magnetic component is formed in the connector body during the molding process, and the positioning hole is used to allow the mold to position the magnetic component.

8. A joint structure for a pulling pipe according to claim 7, characterized in that: There are one or more positioning holes.

9. A pull-out tube structure, characterized in that: It comprises a pull-out tube and a joint structure as described in any one of claims 1 to 8; the pull-out tube comprises a first tube body and a second tube body, and two connectors of the joint structure are respectively inserted into the first tube body and the second tube body.

10. A faucet, characterized in that: It comprises a pull-out tube structure as described in claim 9; the faucet comprises a magnetic induction switch, and the magnetic component of the pull-out tube structure is used to correspond to the magnetic induction switch.

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