CN220956932U

CN220956932U - Multifunctional safety water tap device

Info

Publication number: CN220956932U
Application number: CN202322576830.6U
Authority: CN
Inventors: 杨勇军
Original assignee: Ningbo Yinzhou Ag Vavle Co ltd
Current assignee: Ningbo Yinzhou Ag Vavle Co ltd
Priority date: 2023-09-22
Filing date: 2023-09-22
Publication date: 2024-05-14
Anticipated expiration: 2033-09-22

Abstract

The utility model provides a multifunctional safety water tap device, which comprises a tap shell, a water inlet pipe group and a water outlet pipe, wherein a switch mixing component is arranged on one side of the tap shell, the switch mixing component comprises a switch shell and a rotating control valve positioned in the switch shell, a rotating switch handle for controlling water flow output is arranged at the control end of the rotating control valve, a mixing cavity for mixing water with normal hot water is arranged in the switch shell, a locking limit mechanism is arranged at the position of the rotating switch handle and is used for being matched with a limit groove on the switch shell in a concave-convex manner to lock the angle of the rotating switch handle, a safety use structure is arranged on the basis of a conventional tap, the rotating angle of the rotating switch handle can be locked, the relative angle of the rotating switch handle and the switch shell is fixed, the valve is locked at the angle of high-temperature water closing, and therefore, the safety hot water can be output only in an unlocking state, the locking structure is positioned at the position of the handle, and one-hand operation can be conveniently realized.

Description

Multifunctional safety water tap device

Technical Field

The utility model relates to the technical field of household kitchen and bathroom facilities, in particular to a multifunctional safety water tap device.

Background

The tap, i.e. the water valve, is a kind of switch device for controlling the water flow of the water, and can also be used as a kind of throttle valve. The water tap has higher updating speed, is developed from an old cast iron tap to an electroplating rotary tap, and then develops novel structures such as a stainless steel Shan Wenshan control tap, a stainless steel double-temperature double-control tap, a built-in filtering water purification tap, a semi-automatic tap and the like. The types of the faucet which can be selected in the market are also more and more abundant, and the faucet devices can be divided into various types through materials, processes and functions.

At present, a common tap device with a cold and hot water function in the market basically adopts a single cold water and hot water switching mode, or cold water or high-temperature hot water or warm water mixed by the cold water and the hot water, and high-temperature boiling water is introduced into a water outlet pipeline of the tap, so that certain potential safety hazards exist in the use of the tap, such as scalding possibly caused by improper use.

In summary, the existing faucet with cold and hot water functions has the technical problem of potential safety hazard during high-temperature water delivery.

Disclosure of utility model

The utility model aims to solve the technical problem that the existing faucet with the cold and hot water function has potential safety hazard during high-temperature water delivery.

In order to solve the problems, the utility model provides a water inlet pipe set and a water outlet pipe which are respectively led out from two ends of the faucet shell, wherein the water inlet pipe set comprises a normal temperature water pipe, a high temperature water input pipe, a high temperature water output pipe and a normal temperature water pipe; the rotary switch handle is provided with a locking limit mechanism which is used for being matched with a limit groove on the switch shell in a concave-convex mode to limit the angle of the rotary switch handle, the rotation range of the rotary switch handle corresponds to the opening interval of the normal-temperature water pipe and/or the normal-temperature water pipe on the rotary control valve in the closing state of the locking limit mechanism, and the rotation range of the rotary switch handle corresponds to the opening interval of the normal-temperature water pipe and/or the normal-temperature water pipe and the opening interval of the high-temperature water input pipe on the rotary control valve in the opening state of the locking limit mechanism.

The safety tap device provided by the utility model is provided with a safety use structure on the basis of a conventional multifunctional tap, wherein two high-temperature water delivery pipes are externally connected with a special heater or a water boiler and the like, and are different from devices such as a normal-temperature water pipe connected with a household electric water heater and the like, the output temperature is higher than the temperature of normal-temperature water but far less than the temperature of the boiling water, the safety use structure is a locking limiting mechanism, the rotating angle of a rotary switch handle can be limited through the structure, the locking limiting mechanism and a limiting groove on a switch shell form concave-convex fit, so that the angle range of a rotary control valve in the switch shell is limited, the angle of the rotary control valve is only limited to the control range of normal-temperature water and normal-temperature water, and after the locking limiting mechanism is released, the rotary angle range of the rotary control valve can be continuously enlarged, and the rotary control valve can be rotated to the angle range of the controllable to the control of the opening of the normal-temperature water delivery pipe, thereby providing effective safety measures for the high-temperature water/boiling water, avoiding the dangerous situations such as scalding caused by the false opening of the tap, and the existing tap with water delivery functions and the technical problems of cold and hot water can be effectively solved under the condition of safety hidden danger when the high-temperature water is delivered.

As the preferable scheme, the rotary switch handle comprises a handle shell, a mounting through hole is formed in the handle shell, the locking limiting mechanism comprises a pressing pin, the pressing pin is axially slidably inserted into the mounting through hole, a protruding limiting key is arranged at the base of the pressing pin, a limiting groove matched with the limiting key is formed in the side edge of the switch shell along the circumferential direction, the circumferential extension angle of the limiting groove corresponds to the opening interval of a normal-temperature water pipe or a normal-temperature water pipe on the rotary control valve, and a compression spring is arranged in the mounting through hole and used for pushing the pressing pin outwards along the radial direction of the handle shell to enable the limiting key to be abutted against the limiting groove. The structural design of the locking limiting mechanism is optimized, and the locking of the mechanism is controllable.

As the preferable scheme, the rotary control valve is in a cylindrical table-shaped structure, the inner side edge of the switch shell is a cylindrical cavity, the mixing cavity is positioned in the cavity between the outer edge of the rotary control valve and the inner side of the switch shell, and the rotary control valve is provided with a sealing structure between rotary switch handles in the mixing cavity. The rotary control valve structure is optimized, and the structure and the position of the mixing cavity in the switch shell are provided.

As a preferable scheme, the rotary control valve is provided with an elastic reset mechanism for naturally rotating the rotary control valve to be tightly pressed to an angle section of the closed state of the high-temperature water input pipe. The safety design of the tap is further optimized by adding another heavy safety measure through the elastic reset mechanism.

As the preferable scheme, the rotary control valve comprises a valve head and a valve seat, the elastic reset mechanism is arranged in the valve seat, a communication runner which is communicated with the water inlet pipe group and the water outlet pipe is arranged in the faucet shell, a plurality of water delivery holes are arranged at the joint position of the faucet shell and the switch shell, a round hole-shaped switch groove matched with the water delivery holes is arranged on the end face of the valve head and used for closing the water delivery holes at the corresponding positions, or the water delivery holes are opened to communicate the communication runner with the mixing cavity. The structure inside the valve is optimized, and the opening and closing control structure of the flow passage and the water passage inside the valve is optimized.

As the preferable scheme, be provided with two intercommunication runner that communicate normal atmospheric temperature water pipe in the tap shell, two parallel intercommunication normal hot water pipe's intercommunication runner and a intercommunication runner that communicates high temperature water inlet pipe, tap shell and switch shell butt joint's position is provided with 5 corresponding water delivery holes. The arrangement of the water delivery hole matched with the valve head structure and the communicated communication flow passage is optimized, and the valve head is ensured to realize the switching of the opening and closing states of all pipelines through rotation.

As a preferable scheme, the valve head is provided with a supporting boss on the end face provided with the switch groove, the side wall of the pipe shell provided with the water delivery hole is also provided with a supporting sink groove, and the supporting boss and the supporting sink groove form a rotating fulcrum of the valve head. On the basis of the structure, the mechanism matching design of the valve head in the switch shell is optimized.

As the preferable scheme, elasticity canceling release mechanical system is the torsional spring, the torsional spring install in the disk seat, the disk seat includes mutually nested fixed part and rotation portion, rotation portion with have circumferential location structure between the valve head, rotate along with the valve head, fixed connection between fixed part and the switch shell, the both ends of torsional spring respectively with fixed part and the rotation portion of disk seat are connected, be used for with the valve head is automatic to be twisted to the intercommunication the water delivery hole of high temperature water input tube is closed the position. The design of the elastic reset mechanism is optimized.

As an optimal scheme, the inner side surface of one end of the rotary switch handle of the switch shell is provided with an annular clamping groove, a clamp spring is arranged in the annular clamping groove, and the valve seat is fixed at the axial position of the switch shell through the clamp spring. The matching structure between the valve body and the shell is optimized, and the positioning of the internal structure of the valve is optimized.

Drawings

FIG. 1 is a schematic view of the overall structure of a multifunctional safety faucet assembly according to the present utility model;

FIG. 2 is a schematic view of a partial cross-sectional structure of the safety faucet assembly of FIG. 1;

FIG. 3 is an exploded view of a partial location of the multiple safety faucet assembly of FIG. 2;

Wherein, in fig. 1-3:

1. A water outlet pipe; 2. a water inlet pipe group; 2-1, a high-temperature water output pipe; 3. a faucet housing; 4. a switch housing; 5. rotating the switch handle; 6. pressing the pin; 7. a handle housing; 8. a compression spring; 9. a limit key; 10. a valve head; 11. a communicating flow passage; 12. clamping springs; 13. a torsion spring; 14. a valve seat; 15. a water delivery hole; 16. a switch groove; 17. a support boss; 18. a mixing chamber; 19. a fixing part; 20. a rotating part; 21. and a limit groove.

Detailed Description

The following description of the present utility model will be made clearly and fully, and it is apparent that the embodiments described are some, but not all, of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, fig. 1 is a schematic diagram of the overall structure of a multifunctional safety faucet device according to the present utility model; FIG. 2 is a schematic view of a partial cross-sectional structure of the safety faucet assembly of FIG. 1; fig. 3 is an exploded view of a partial position of the multifunctional safety tap apparatus of fig. 2.

The embodiment provides a faucet which comprises a faucet shell, a water inlet pipe group and a water outlet pipe 1 which are led out from two ends of the faucet shell respectively, wherein the water inlet pipe group 2 comprises a normal temperature water pipe, a high temperature water input pipe, a high temperature water output pipe 2-1 and a normal temperature water pipe, one side of the faucet shell 3 is provided with a switch mixing component, the switch mixing component comprises a switch shell 4 and a rotating control valve positioned in the switch shell 4, a control end of the rotating control valve is provided with a rotating switch handle 5 for controlling water flow output, a mixing cavity 18 for mixing normal temperature water and normal temperature water is arranged in the switch shell 4, the rotating control valve controls the switch of the normal temperature water pipe and the mixing of two types of temperature water through rotation and pulling actions, and the switch of the high temperature water input pipe, and the water outlet end of the rotating control valve and the high temperature water output pipe 2-1 are communicated with the water outlet pipe 1; the rotary switch handle is provided with a locking and limiting mechanism at a position for being matched with a limiting groove 21 on the switch shell 4 in a concave-convex manner to limit the angle of the rotary switch handle, the rotation range of the rotary switch handle corresponds to the opening interval of the normal temperature water pipe and/or the normal hot water pipe on the rotary control valve in the closing state of the locking and limiting mechanism, and the rotation range of the rotary switch handle corresponds to the opening interval of the normal temperature water pipe and/or the normal hot water pipe and the opening interval of the high temperature water input pipe on the rotary control valve in the opening state of the locking and limiting mechanism.

The water outlet pipe can be used for carrying out pipeline level separation according to an output function, preferably a double-layer pipe structure with nested inner and outer pipes, and high-temperature water, normal-temperature water and mixed water thereof are output through a pipeline gap between the outer layer pipe and the inner layer pipe, and high-temperature water/boiling water is output through the inner layer pipe, mainly in consideration of the requirement of high-temperature water on special pipeline materials, and the pipeline layout is facilitated by special high-temperature water output through the inner layer pipe; the two high-temperature water delivery pipes are externally connected with a special heater or a water boiler and other devices, boiling water is directly delivered, the high-temperature water delivery pipe is connected with a normal-temperature water pipe or a normal-temperature water pipe through a rotary control valve, whether water is delivered to the water boiler or not is controlled through a valve switch, the output end of the water boiler is directly communicated with a water outlet pipe through a high-temperature water delivery pipe, a high-temperature water loop is communicated in an opened state of the valve, high-temperature water delivery is realized, a special high-temperature scalding-preventing material pipeline is preferably adopted, the high-temperature water pipe is different from the normal-temperature water pipe and is connected with a household electric water heater and other devices, the output temperature of the normal-temperature water pipe is higher than that of the normal-temperature water and is used for delivering normal-temperature water/hot water, and the temperature of the normal-temperature water/hot water is far less than that of the boiling water.

The design sets up safe use structure on the basis of conventional multifunctional faucet, safe use structure is locking stop gear, can inject the turned angle of rotating switch handle through this structure, locking stop gear forms unsmooth cooperation with the spacing recess on the switch shell, thereby inject the angle scope of rotating control valve in the switch shell, guarantee under the condition that does not release the lock in advance, the angle of rotating control valve is limited to its control normal temperature water and normal hot water and opens control interval, and after having released locking stop gear, can continue to enlarge the rotating angle scope of rotating control valve, can rotate to the angle interval that can control the high temperature water input tube and open, thereby provide the effectual safety measure to high temperature water/boiling water, avoid the mistake of tap to open the dangerous condition such as scald, effectively solved current tap with cold and hot water function, there is the potential safety hazard's in high temperature water delivery's technical problem.

In the technical scheme provided by the embodiment, the rotary switch handle 5 comprises a handle shell 7, a mounting through hole is formed in the handle shell 7, the locking limiting mechanism comprises a pressing pin 6, the pressing pin 6 is axially slidably inserted in the mounting through hole, a protruding limiting key 9 is arranged at the base of the pressing pin 6, a limiting groove 21 matched with the limiting key 9 is formed in the side edge of the switch shell 4 along the circumferential direction, the circumferential extension angle of the limiting groove 21 corresponds to the opening interval of a normal-temperature water pipe and/or a normal-temperature water pipe on the rotary control valve, and a compression spring 8 is arranged in the mounting through hole and used for pushing the pressing pin 6 outwards along the radial direction of the handle shell 7, so that the limiting key 9 is abutted to the limiting groove 21.

The preferred structure of spacing recess is the opening that sets up in switch shell edge and be circumference, the degree of depth cooperation limit key's of opening shape sets up, the structural design of locking stop gear has been optimized in this design, guarantee the locking of mechanism is controllable, wherein the twist grip position is hollow structure, inside slip cartridge has the push pin, push pin overcoat establishes compression spring, compression spring both ends are supported respectively and are tightly between the bellied terminal surface of push pin circumference and the inside protruding structure of handle shell, jack-up the push pin and the spacer pin to the direction that keeps away from switch shell inside, under the state that the spacer pin is jacked up, the radial position of spacer pin just cooperates with the spacing recess concave-convex of switch shell medial border, the controllability and the validity of locking mechanism execution locking action have effectively been ensured, and the unblock is realized through pressing the push pin conveniently.

In the technical scheme provided by the embodiment, the rotary control valve is in a cylindrical table structure, the inner side edge of the switch shell 4 is a cylindrical cavity, the mixing cavity 18 is positioned in a cavity between the outer edge of the rotary control valve and the inner side of the switch shell 4, and the rotary control valve is provided with a sealing structure between the mixing cavity 18 and the rotary switch handle 5. The rotary control valve structure is optimized, and the structure and the position of the mixing cavity in the switch shell are provided.

The design optimizes the structure of the rotary control valve, provides the structure and the position of the mixing cavity in the switch shell, the rotary control valve is of a cylindrical main body structure, the switch shell is provided with a cylindrical inner cavity, the rotary control valve is accommodated in the inner cavity, the space between the cylindrical inner cavity and the cylindrical inner cavity is the mixing cavity, one side of the mixing cavity is connected with the faucet shell, and the sealing structure is arranged on the other side of the mixing cavity to form sealing with the switch shell.

In the technical scheme provided by the embodiment, the rotary control valve is provided with an elastic reset mechanism for naturally rotating the rotary control valve to be abutted against an angle section in a closed state of the high-temperature water input pipe. In the design, another heavy safety measure is added through the elastic reset mechanism, the safety design of the faucet is further optimized, the locking limiting mechanism is used for limiting the rotation angle of the handle and the valve through the unlocking mechanism, and the scheme of the embodiment is that the valve is further automatically rotated to the high-temperature water closing direction through the elastic structure under the unlocking state.

In the technical scheme provided by the embodiment, the rotary control valve comprises a valve head 10 and a valve seat 14, an elastic reset mechanism is arranged in the valve seat 14, a communication flow passage 11 for communicating the water inlet pipe group 2 with the water outlet pipe 1 is arranged in the faucet shell 3, a plurality of water delivery holes 15 are arranged at the joint position of the faucet shell 3 and the switch shell 4 in the communication flow passage 11, a round hole-shaped switch groove 16 matched with the water delivery holes 15 is arranged on the end face of the valve head 10 and used for closing the water delivery holes 15 at the corresponding position, or the water delivery holes 15 are opened to communicate the communication flow passage 11 with the mixing cavity 18.

The design optimizes the structure in the valve, optimizes the internal runner and the water passage opening and closing control structure rotating control valve thereof, and comprises a valve head and a valve seat which are mutually nested, wherein the valve seat is preferably designed to comprise two annular structures which are mutually nested and coaxially and rotatably connected, one of the annular structures positioned on the outer side is fixed with a faucet shell, the other annular structure is provided with a square through hole with the end face, the connecting end for accommodating the valve head penetrates through and is circumferentially positioned with the valve head, and the elastic reset mechanism acts on the two valve seats which are mutually nested. Through the special switch groove structure on the valve head terminal surface, with the water delivery hole cooperation on the tap shell, because the structure of switch groove need not the valve head and opens too big angle and can reach the intercommunication of water delivery hole and mixing chamber.

In the technical scheme provided by the embodiment, a communicating runner 11 for communicating normal-temperature water pipes, two parallel communicating runners 11 for communicating normal-temperature water pipes and two parallel communicating runners 11 for communicating high-temperature water inlet pipes are arranged in a faucet shell 3, and 5 corresponding water delivery holes 15 are formed in the joint position of the faucet shell 3 and a switch shell 4.

The arrangement of the water delivery hole matched with the valve head structure and the communicated communication flow passage is optimized in the design, so that the valve head can realize the switching of the opening and closing states of all pipelines through rotation; wherein the tap shell is provided with a plurality of water delivery holes with the position of switch shell butt joint, and the water delivery hole is three sets of settings with the difference of connecting water pipe, and every group water delivery hole interval is preset phase angle, and the switch recess on it can switch rather than complex water delivery hole when the valve head is rotatory to with out water between high temperature water, mixed warm water and normal atmospheric temperature drinking water, wherein the intercommunication runner of switch-on normal atmospheric temperature water pipe has two, and normal atmospheric temperature and normal hot water switch mixing function of a corresponding valve, and the high temperature water function of another corresponding valve is used for through normal atmospheric temperature water pipe to produce the device such as boiling water ware water delivery of high temperature water.

In the technical scheme provided by the embodiment, the valve head 10 is provided with a supporting boss 17 at the end face provided with the switch groove 16, the side wall of the pipe shell provided with the water delivery hole 15 is also provided with a supporting sink groove, and the supporting boss 17 and the supporting sink groove form a rotating fulcrum of the valve head 10. The structure of the embodiment optimizes the mechanism matching design of the valve head in the switch shell, the side surface of the shell wall provided with the water delivery hole is provided with a supporting countersink, the corresponding position of the valve head is provided with a matched supporting boss, and the valve head can rotate in a plane perpendicular to the conventional rotation plane of the handle in a certain range by a hinge structure formed by the valve head and the valve head.

In the technical scheme provided by the embodiment, the elastic resetting mechanism is a torsion spring 13, the torsion spring 13 is mounted in the valve seat 14, the valve seat 14 comprises a fixing part 19 and a rotating part 20 which are mutually nested, a circumferential positioning structure is arranged between the rotating part 20 and the valve head 10, the rotating part rotates along with the valve head 10, the fixing part 19 is fixedly connected with the switch shell 4, and two ends of the torsion spring 13 are respectively connected with the fixing part 19 and the rotating part 20 of the valve seat 14 and are used for automatically twisting the valve head 10 to a position where a water delivery hole 15 communicated with a high-temperature water input pipe is closed.

The design of the elastic reset mechanism is optimized, the elastic force for rotary reset is provided through the structure of the torsion spring, the structure is simple, the automatic reset action is stable and controllable, the rotating part of the valve seat is provided with a square hole in a waist shape, and the square hole is matched with a square column-shaped pulling switch at the tail end of the valve head to realize circumferential positioning.

In the technical scheme provided by the embodiment, the inner side surface of one end of the rotary switch handle 5 of the switch shell 4 is provided with an annular clamping groove, a clamping spring 12 is arranged in the annular clamping groove, and the axial position of the valve seat 14 in the switch shell 4 is fixed through the clamping spring 12. The valve seat structure is axially fixed in the switch shell through the structure of the clamp spring.

Although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.

Claims

1. The multifunctional safety faucet device is characterized by comprising a faucet shell (3) and a water inlet pipe group (2) and a water outlet pipe (1) which are respectively led out from two ends of the faucet shell (3), wherein the water inlet pipe group (2) comprises a normal-temperature water pipe, a high-temperature water input pipe, a high-temperature water output pipe (2-1) and a normal-temperature water pipe, one side of the faucet shell (3) is provided with a switch mixing component, the switch mixing component comprises a switch shell (4) and a rotating control valve positioned in the switch shell (4), the control end of the rotating control valve is provided with a rotating switch handle (5) for controlling water flow output, a mixing cavity (18) for mixing normal-temperature water and normal-temperature water is arranged in the switch shell (4), the rotating control valve controls the mixing of the normal-temperature water pipe and the normal-temperature water through rotation and pulling actions, and the switching of the high-temperature water input pipe, and the water outlet end of the rotating control valve and the high-temperature water output pipe (2-1) are communicated with the water outlet pipe (1); the rotary switch handle (5) is provided with a locking limit mechanism at the position, and is used for being matched with a limit groove (20) on the switch shell (4) in a concave-convex mode to limit the angle of the rotary switch handle (5), in the locking limit mechanism closing state, the rotation range of the rotary switch handle (5) corresponds to the normal temperature water pipe and/or the normal temperature water pipe opening section on the rotary control valve, in the locking limit mechanism opening state, the rotation range of the rotary switch handle (5) corresponds to the normal temperature water pipe and/or the normal temperature water pipe opening section on the rotary control valve and the normal temperature water input pipe opening section.

2. The multifunctional safety faucet device according to claim 1, wherein the rotary switch handle (5) comprises a handle shell (7), an installation through hole is formed in the handle shell (7), the locking limiting mechanism comprises a pressing pin (6), the pressing pin (6) is axially slidably inserted into the installation through hole, a protruding limiting key (9) is arranged on the base of the pressing pin (6), a limiting groove (20) matched with the limiting key (9) is formed in the side edge of the switch shell (4) along the circumferential direction, the circumferential extension angle of the limiting groove (20) corresponds to the opening range of a normal temperature water pipe or a normal temperature water pipe on the rotary control valve, and a compression spring (8) is arranged in the installation through hole and used for pushing the pressing pin (6) outwards along the radial direction of the handle shell (7) so as to tightly press the limiting key (9) into the limiting groove (20).

3. The multifunctional safety faucet device according to claim 2, wherein the rotary control valve is in a cylindrical table-shaped structure, the inner side edge of the switch housing (4) is a cylindrical cavity, the mixing cavity (18) is positioned in a cavity between the outer edge of the rotary control valve and the inner side of the switch housing (4), and the rotary control valve is provided with a sealing structure between the rotary switch handles (5) in the mixing cavity (18).

4. A multifunctional safety tap apparatus according to claim 3, wherein the rotary control valve is provided with an elastic reset mechanism for naturally rotating the rotary control valve against an angle section of the closed state of the high temperature water input pipe.

5. The multifunctional safety faucet device according to claim 4, wherein the rotary control valve comprises a valve head (10) and a valve seat (14), the elastic reset mechanism is arranged in the valve seat (14), a communication flow passage (11) for communicating the water inlet pipe group (2) and the water outlet pipe (1) is arranged in the faucet shell (3), a plurality of water delivery holes (15) are arranged at the position where the faucet shell (3) is in butt joint with the switch shell (4), a round hole-shaped switch groove (16) matched with the water delivery holes (15) is arranged on the end face of the valve head (10) and used for closing the water delivery holes (15) at the corresponding position, or the water delivery holes (15) are opened to communicate the communication flow passage (11) with the mixing cavity (18).

6. The multifunctional safety faucet device according to claim 5, wherein two communicating channels (11) which are communicated with the normal-temperature water pipe, two parallel communicating channels (11) which are communicated with the normal-temperature water pipe and one communicating channel (11) which is communicated with the high-temperature water inlet pipe are arranged in the faucet shell (3), and 5 corresponding water delivery holes (15) are arranged at the abutting position of the faucet shell (3) and the switch shell (4).

7. The multifunctional safety faucet device according to claim 5, wherein the valve head (10) is provided with a supporting boss (17) at the end face provided with the switch groove (16), the side wall of the pipe shell provided with the water delivery hole (15) is also provided with a supporting sink, and the supporting boss (17) and the supporting sink form a rotating fulcrum of the valve head (10).

8. The multifunctional safety faucet device according to claim 7, wherein the elastic reset mechanism is a torsion spring (13), the torsion spring (13) is installed in the valve seat (14), the valve seat (14) comprises a fixing portion (19) and a rotating portion (20) which are mutually nested, a circumferential positioning structure is arranged between the rotating portion (20) and the valve head (10), the valve head (10) rotates along with the rotation of the valve head, the fixing portion (19) is fixedly connected with the switch shell (4), and two ends of the torsion spring (13) are respectively connected with the fixing portion (19) and the rotating portion (20) of the valve seat (14) and are used for automatically twisting the valve head (10) to a position where a water delivery hole (15) communicated with the high-temperature water input pipe is closed.

9. The multifunctional safety faucet device according to claim 5, wherein the switch housing (4) is provided with an annular clamping groove on the inner side surface of one end of the rotary switch handle (5), a clamping spring (12) is arranged in the annular clamping groove, and the valve seat (14) is fixed at the axial position of the switch housing (4) through the clamping spring (12).