CN210978686U

CN210978686U - Electric control water valve

Info

Publication number: CN210978686U
Application number: CN201921739190.3U
Authority: CN
Inventors: 陈林兴
Original assignee: Individual
Current assignee: Kaiping Sai'ou Sanitary Ware Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-07-10
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses an automatically controlled water valve, include: the valve comprises a valve body, a valve rod and a starting and closing piece arranged in the valve body, wherein one end of the valve rod is connected with the starting and closing piece, the other end of the valve rod extends out of the valve body through an opening arranged on the valve body, and a limiting pipe is surrounded on the outer side of the opening; the mounting seat is provided with a limiting hole matched with the limiting pipe in shape; the motor is arranged on the mounting seat, and an output shaft of the motor is in transmission connection with the end, extending out of the valve body, of the valve rod; the limiting pipe is embedded into the limiting hole and connected with the mounting seat. According to the specification and size differences of different valves and electric control parts, only the installation seat with the proper size and specification is needed to be selected and the shape and size of the limiting hole in the installation seat are needed to be adjusted, the connection structure of the installation seat and the valves does not need to be changed greatly, and the assembly difficulty of the valves and the electric control parts with different specifications and sizes is reduced.

Description

Electric control water valve

Technical Field

The utility model relates to an intelligence house product technology field, in particular to automatically controlled water valve.

Background

The electric control water valve comprises an electric control part and a valve body part, wherein the electric control part receives signals from a control device to drive the valve body to open and close, and the demand of the electric control water valve device is increased along with the development of the intelligent household industry.

The existing water valves without electric control function are generally used in the families of residents, and the traditional water valves are opened and closed by manually shifting or rotating a valve rod. With the rapid development of the smart home industry, manufacturers of traditional valves begin to gradually relate to the production of electric control water valves, electric control parts of the electric control water valves need to be integrated on the traditional valves, and the assembly difficulty of the electric control parts and the valves is increased due to the fact that the specifications and the sizes of different valves and the electric control parts are different greatly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an automatically controlled water valve, can reduce the assembly degree of difficulty of different specification and dimension valves and automatically controlled part.

The utility model provides an automatically controlled water valve, include: the valve comprises a valve body, a valve rod and a starting and closing piece arranged in the valve body, wherein one end of the valve rod is connected with the starting and closing piece, the other end of the valve rod extends out of the valve body through an opening arranged on the valve body, and a limiting pipe is surrounded on the outer side of the opening; the mounting seat is provided with a limiting hole matched with the limiting pipe in shape; the motor is arranged on the mounting seat, and an output shaft of the motor is in transmission connection with the end, extending out of the valve body, of the valve rod; the limiting pipe is embedded into the limiting hole and connected with the mounting seat.

The embodiment of the utility model provides a pair of automatically controlled water valve has following beneficial effect at least: the limiting pipe is arranged around the outer side of the opening of the valve body, and meanwhile, the mounting seat for placing the electric control part such as the motor and the like is provided with the limiting hole matched with the shape of the limiting pipe, so that when the electric control part and the valve are assembled, the limiting pipe is embedded into the limiting hole to be connected with the mounting seat, and the assembling structure is simple; meanwhile, according to the specification and size differences of different valves and electric control parts, only the installation seat with the proper size and specification is needed to be selected and the shape and size of the limiting hole in the installation seat are needed to be adjusted, the connection structure of the installation seat and the valves does not need to be changed greatly, and the assembly difficulty of the valves and the electric control parts with different specification and size is reduced.

As a further improvement of the scheme, the device also comprises a limiting assembly, wherein the limiting assembly comprises a limiting ring concentrically arranged on the outer wall of the limiting pipe. The limiting ring arranged on the outer wall of the limiting pipe plays a role in limiting the mounting seat along the axial direction of the limiting pipe, the mounting seat is sleeved on the limiting pipe along the axial direction of the limiting pipe through the limiting hole in the assembling process, the limiting ring can limit the depth of the limiting pipe embedded into the limiting hole, the mounting seat can slide to a set position to stop, and therefore the accurate position connection of the motor and the valve rod on the mounting seat is guaranteed, and the assembling precision is improved.

As a further improvement of the scheme, the limiting assembly further comprises a first external thread arranged on the outer wall of the limiting pipe and a first internal thread arranged on the inner wall of the limiting hole, and the limiting pipe is in threaded connection with the limiting hole. The mounting seat and the limiting pipe are fixedly connected in a threaded connection mode, and the threaded connection belongs to detachable connection, so that assembly and maintenance are facilitated.

As a further improvement of the above scheme, the valve cover further comprises a valve cover arranged on the opening, and the valve cover comprises a pressing plate part extending out of the pipe orifice of the limiting pipe; the limiting assembly further comprises an external spline arranged on the outer wall of the limiting pipe and an internal spline arranged on the inner wall of the limiting hole, the limiting pipe is connected with the limiting hole through the spline, the pressing plate part and the limiting ring are respectively arranged on two sides of the mounting seat and used for limiting the mounting seat in the axial direction of the limiting pipe. The mounting seat and the limiting pipe are connected in a key mode to limit the limiting pipe and the limiting block in the circumferential direction, the mounting seat is clamped in the axial direction of the limiting pipe through the pressing plate part and the limiting ring together along the axial direction of the limiting pipe, and the mounting seat is fixedly connected with the limiting pipe through axial limitation and circumferential limitation. Spline structure compares the helicitic texture and changes in processing, has reduced the mount pad and spacing tub processing degree of difficulty and cost.

As a further improvement of the above scheme, the valve cover further comprises a valve cover arranged on the opening, the valve cover comprises a pressing plate part extending out of the opening of the limiting pipe, the pressing plate part and the limiting ring are respectively arranged on two sides of the mounting seat and used for limiting the mounting seat in the axial direction of the limiting pipe, and the pressing plate part is in pin connection with the mounting seat. The pressure plate part and the mounting seat are provided with pin holes at corresponding positions, after the pressure plate part and the limiting ring clamp the mounting seat axially along the limiting pipe, the mounting seat is limited circumferentially by a cylindrical pin or a conical pin matched with the pin holes, and the mounting seat is fixedly connected with the limiting pipe through axial limitation and circumferential limitation. Compare in helicitic texture and spline structure, the round pin connection has further reduced the processing degree of difficulty and the cost of mount pad and spacing pipe.

As a further improvement of the above scheme, the valve further comprises a connecting shaft, one end of the connecting shaft is circumferentially and fixedly connected with the end, extending out of the valve body, of the valve rod, the other end of the connecting shaft is in transmission connection with an output shaft of the motor, and an angle sensor used for measuring the rotating speed of the connecting shaft is arranged on the connecting shaft. The angle sensor is provided with a mounting hole matched with the connecting shaft, the angle sensor can detect the rotating angle of the connecting shaft in the mounting hole and generate a signal, and the controller can more accurately control the opening and the closing of the valve by feeding the signal back to the controller for controlling the motor.

As a further improvement of the scheme, the device further comprises a speed reducer, and an output shaft of the motor is in transmission connection with the connecting shaft through the speed reducer. The speed reducer can reduce the rotational speed for electric control part can use different model motors, thereby promotes electric control part design flexibility ratio.

As a further improvement of the above scheme, the protective cover further comprises a protective cover, wherein a mounting ring is arranged on the edge of the mounting seat, second external threads are arranged on the outer wall of the mounting ring, second internal threads matched with the second external threads are arranged on the inner wall of the protective cover, and the protective cover is in threaded connection with the mounting ring. The protective cover can isolate the electric control part from the wet use environment of the water valve, so that the circuit is prevented from being damaged by water vapor.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is an exploded view of the electrically controlled water valve shown in FIG. 1;

FIG. 3 is a cross-sectional view of one embodiment of the present invention;

FIG. 4 is an enlarged view of the connection position of the limiting hole and the limiting pipe at A in FIG. 3;

fig. 5 is a cross-sectional view of another embodiment of the present invention;

FIG. 6 is an enlarged view of the connection position of the limiting hole and the limiting pipe at B in FIG. 5;

fig. 7 is a cross-sectional view of yet another embodiment of the present invention;

FIG. 8 is an enlarged view of the connection position of the limiting hole and the limiting pipe at C in FIG. 7;

fig. 9 is a schematic structural view of a valve body of a straight-through valve according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a valve body of an angle valve according to an embodiment of the present invention.

Reference numerals:

a first straight pipe 101, a first water inlet 102, a first water outlet 103, a vertical pipe 104, a horizontal pipe 105, a second water inlet 106, a second water outlet 107, a valve body 110, a limiting pipe 111, an opening 112, a limiting ring 113, a first external thread 114, a valve rod 120, a valve cover 130, a pressing plate part 131, a first water outlet, a second water outlet, a valve body cover 110, a limiting pipe 111, a limiting pipe cover 130, a limiting ring,

A bottom plate 210, a limit hole 211, a first internal thread 212, a mounting ring 220, a support column 230, an angle sensor 240, a support frame 250,

An electric control part 310, a connecting shaft 320,

A cylindrical pin 410.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the positional or orientational descriptions, such as the directions of up, down, left, right, inner, axial, circumferential, etc., are based on the positional or orientational relationships shown in the drawings and are for convenience of description and simplicity of description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, and a plurality of means are two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device that can control the flow rate of a medium (liquid, gas, powder) in a device by flowing or stopping the medium. Valves generally include several portions, a valve body 110, a bonnet 130, a closure member, a valve stem 120, etc., where the valve body 110 and bonnet 130 are the major pieces of the valve. The valve body 110 is provided with a cavity for containing water flow, the valve body 110 is generally provided with three ports communicated with the cavity, including a water inlet, a water outlet and an opening 112 for passing the valve stem 120, the opening 112 is hermetically connected by a valve cover 130, one end of the valve stem 120 passes through the valve cover 130 and extends out of the cavity, and the other end is connected with an opening and closing member arranged in the cavity. The valve rod 120 is rotated or lifted to drive the opening and closing member to move in the cavity, thereby cutting off or conducting the passage between the water inlet and the water outlet. Generally, if the direction of water flow entering the cavity from the water inlet is the same as the direction of water flow exiting the cavity from the water outlet, the valve is called a straight-through valve; if the direction of water flow entering the cavity from the water inlet is vertical to the direction of water flow flowing out of the cavity from the water outlet, the valve is called an angle type (or angular type) valve, and a straight-through type valve and an angle type valve are two common structures of the valve.

The electric control water valve used as an important ring of the smart home generally comprises two parts: the electric control part 310 generally comprises a motor for driving the valve rod 120, and the electric control part 310 is in transmission connection with the valve rod 120 of the valve through the motor to drive the valve rod 120 to act so as to control the cut-off and the conduction of the valve. In view of the variety of valve dimensions, when assembling the electric control part 310 with valves of different dimensions, it is generally chosen to weld the electric control part 310 directly to the valve, which is the most conceivable embodiment to adapt to different dimensions, but this assembly method is not efficient and causes damage to the aesthetic appearance of the valve. Therefore, the utility model provides a plurality of structures that can reduce the assembly degree of difficulty of different specification and dimension valves and automatically controlled part 310.

Referring to fig. 1 and 2, the electrically controlled water valve provided in this embodiment includes a valve, a mounting seat, and a motor, where the valve includes a valve body 110, a valve stem 120, a valve cap 130, and an opening and closing element (not shown) disposed in the valve body 110, one end of the valve stem 120 is connected to the opening and closing element, the other end of the valve stem extends out of the valve body 110 through an opening 112 disposed on the valve body 110, and a limiting pipe 111 surrounds the outside of the opening 112; a limiting hole 211 matched with the shape of the outer wall of the limiting pipe 111 is formed in the mounting seat, and the valve rod 120 extends out of the limiting pipe 111 through the limiting block; the mounting seat comprises a bottom plate 210, three support columns 230 and a plate-shaped support frame 250, wherein the bottom plate 210 is of a plate-shaped structure, a limiting hole 211 is formed in the bottom plate 210, the support columns 230 surround the limiting hole 211 and are connected to the bottom plate 210 in a threaded mode, the other ends of the support columns 230 are connected with the support frame 250 in a threaded mode, a motor and a transmission structure are fixed on the support frame 250, and the output shaft of the motor is in transmission connection with one end, extending out of the valve body 110, of the valve rod 120 through; wherein, spacing pipe 111 imbeds in the spacing hole 211, then spacing pipe 111 passes through interference fit, threaded connection etc. with the mount pad and realizes fixed connection, because electric control part 310 and valve pass through spacing hole 211 and spacing pipe 111 fixed connection, consequently as long as with spacing hole 211 and spacing pipe 111 design for general size specification, can realize the unified assembly of the valve of different specification and dimension and electric control part 310, reduce the assembly degree of difficulty.

It is understood that the number of the supporting columns 230 may be two or more than four, but is not limited thereto, and two or more than four supporting columns 230 are also connected with the bottom plate 210 and the supporting frame 250 respectively at two ends thereof by a threaded connection.

Referring to fig. 9, which is a schematic structural diagram of a valve body 110 of the through-type valve provided in this embodiment, for the through-type valve, the valve body 110 includes a limiting pipe 111 and a first through pipe 101, and two ports of the first through pipe 101 are respectively used as a first water inlet 102 and a first water outlet 103 of the valve body 110. The lower end nozzle of the limiting pipe 111 is communicated with the pipe wall of the first through pipe 101, and the upper end nozzle of the limiting pipe 111 is used as an opening 112 for the valve body 110 to pass through.

Referring to fig. 10, for the structure schematic diagram of the valve body 110 of the angle valve provided in this embodiment, for the angle valve, the valve body 110 includes a vertical pipe 104 and a horizontal pipe 105 that are perpendicular to each other, a left end nozzle of the horizontal pipe 105 is communicated with a through hole on a side wall of the vertical pipe 104, a lower end nozzle of the vertical pipe 104 is used as a second water outlet 107, a right end nozzle of the horizontal pipe 105 is used as a second water inlet 106, and an upper end nozzle of the vertical pipe 104 is used as an opening 112 through which the valve rod 120 passes.

Specifically, the driving connection between the output shaft of the motor and the end of the valve rod 120 extending out of the valve body 110 may be implemented by using a gear transmission device (not shown in the figure), the gear transmission device includes a driving gear and a driven gear, the driving gear is coaxially connected with the output shaft of the motor, the driven gear is coaxially connected with the valve rod 120, and the driving gear engages with the driven gear to drive the valve rod 120 to rotate to control the valve to be turned off or turned on.

In another embodiment, the driving connection between the output shaft of the motor and the end of the valve stem 120 extending out of the valve body 110 can be achieved by using a coupling (not shown).

Or a chain transmission structure (not shown in the figure) is adopted, the chain transmission structure comprises a closed chain, a main chain wheel and a driven chain wheel, the chain is wound around the main chain wheel and the driven chain wheel, special tooth shapes are formed on the chain wheels, the main chain wheel is coaxially connected with the output shaft of the motor, the driven chain wheel is coaxially connected with the valve rod 120, and the output shaft drives the valve rod 120 to rotate to control the cut-off or the conduction of the valve through the meshing of the chain wheels and the chain links.

Or a worm gear and a worm (not shown in the figure) can be used for transmission, the valve rod 120 is coaxially connected with the worm gear, the output shaft of the motor is coaxially connected with the worm, and the worm is meshed with the worm gear to realize that the output shaft of the motor drives the valve rod 120 to rotate so as to control the cut-off and the conduction of the valve.

In some embodiments, the transmission device is a speed reducer, and the output shaft of the motor is in transmission connection with the connecting shaft 320 through the speed reducer (not shown in the figure). The speed reducer can reduce the rotating speed, so that the electric control part 310 can use motors of different models, and the design flexibility of the electric control part 310 is improved.

The utility model provides an automatically controlled water valve has set up the spacing subassembly that is used for restricting spacing pipe 111 and spacing hole 211 relative motion to take place, refer to fig. 2, and in one of them embodiment, in order to promote the assembly precision, spacing subassembly includes that the concentricity sets up spacing ring 113 on spacing pipe 111 outer wall. In the assembling process, the mounting seat is axially sleeved on the limiting pipe 111 in a sliding mode along the limiting pipe 111 through the limiting hole 211, the limiting ring 113 can limit the depth of the limiting pipe 111 embedded into the limiting hole 211, the mounting seat stops when sliding to a set position, the accurate position connection of the motor and the valve rod 120 on the mounting seat is guaranteed, and the assembling precision is improved.

As shown in fig. 3 and 4, in the present embodiment, the limiting assembly includes a first external thread 114 disposed on an outer wall of the limiting tube 111 and a first internal thread 212 disposed on an inner wall of the limiting hole 211, and the limiting tube 111 is in threaded connection with the limiting hole 211. The mounting seat and the limiting pipe 111 are fixedly connected in a threaded connection mode, and threaded connection belongs to detachable connection, so that assembly and maintenance are facilitated.

As shown in fig. 5 and 6, in order to reduce the difficulty of processing, an embodiment is provided, which further includes a valve cover 130 disposed on the opening 112, wherein the valve cover 130 includes a pressing plate portion 131 extending out of the orifice of the limiting tube 111; spacing subassembly includes spacing ring 113, set up the external splines on spacing pipe 111 outer wall and set up the internal spline on spacing hole 211 inner wall, spacing pipe 111 and spacing hole 211 splined connection, and pressure board portion 131 sets up respectively with spacing ring 113 and is used for spacing the mount pad on spacing pipe 111 axial with spacing ring both sides, and it is preferred that pressure board portion 131 and spacing ring 113 press from both sides the bottom plate 210 of tight mount pad jointly. The mounting seat and the limiting pipe 111 are connected in a key mode to limit the limiting pipe 111 and the limiting block in the circumferential direction, the mounting seat is clamped in the axial direction of the limiting pipe 111 jointly through the pressing plate portion 131 and the limiting ring 113 along the axial direction of the limiting pipe 111 to achieve limiting along the axial direction of the limiting pipe 111, and fixed connection between the mounting seat and the limiting pipe 111 is achieved jointly through axial limiting and circumferential limiting. Compared with a threaded structure, the spline structure is easier to machine, and the machining difficulty and cost of the mounting seat and the limiting pipe 111 are reduced.

As shown in fig. 7 and 8, an embodiment for reducing the processing difficulty and cost is further provided, the embodiment further includes a valve cover 130 disposed on the opening 112, the valve cover 130 includes a pressing plate portion 131 extending out of the orifice of the limiting tube 111, a limiting component is composed of the pressing plate portion 131 and the limiting ring 113, the pressing plate portion 131 and the limiting ring 113 are respectively disposed on two sides of the mounting seat and used for limiting the mounting seat in the axial direction of the limiting tube 111, and the pressing plate portion 131 is in pin connection with the bottom plate 210 of the mounting seat. The pressing plate portion 131 and the mounting seat are provided with pin holes at corresponding positions, after the pressing plate portion 131 and the limiting ring 113 clamp the mounting seat along the axial direction of the limiting pipe 111 together, the mounting seat is limited in the circumferential direction of the limiting pipe 111 through a cylindrical pin 410 or a conical pin matched with the pin holes, and the mounting seat and the limiting pipe 111 are fixedly connected through axial limitation and circumferential limitation together. Compared with a threaded structure and a spline structure, the pin connection further reduces the processing difficulty and cost of the mounting seat and the limiting pipe 111.

In order to improve the control accuracy of the motor for the valve, as shown in fig. 1 and fig. 2, in this embodiment, a connection shaft 320 and an angle sensor 240 are provided, one end of the connection shaft 320 is circumferentially and fixedly connected with one end of the valve rod 120 extending out of the valve body 110, the other end of the connection shaft 320 is in transmission connection with an output shaft of the motor, and the connection shaft 320 is provided with the angle sensor 240 for measuring the rotation speed of the connection shaft 320. The other end of the connecting shaft 320 is in transmission connection with the output shaft, which can be realized by adopting a chain transmission structure, a worm and gear transmission structure or a gear transmission device provided by the above embodiments. And the top of the end of the valve rod 120 extending out of the valve body 110 is provided with a slot, and one end of the connecting shaft 320 is embedded into the slot to be connected with the valve rod 120 by a spline or a pin, so that the connecting shaft 320 is fixedly connected with the valve body 110 in the circumferential direction. The angle sensor 240 is provided with a mounting hole matched with the connecting shaft 320, the angle sensor 240 can detect the rotating angle of the connecting shaft 320 in the mounting hole and generate a signal, and the controller can more accurately control the opening and closing of the valve by feeding the signal back to the controller for controlling the motor. Specifically, the model of the angle sensor 240 may be SV01a103AEA01R 00. It is understood that, in addition to the models provided above, those skilled in the art can select a corresponding type or model of angle sensor 240 as desired.

In some embodiments, a protective cover (not shown in the drawings) is further included, the edge of the mounting seat is provided with a mounting ring 220, the outer wall of the mounting ring 220 is provided with a second external thread, the inner wall of the protective cover is provided with a second internal thread matched with the second external thread, and the protective cover is in threaded connection with the mounting ring 220. The protective cover can be made of plastic materials or metal materials, and the electric control part 310 can be isolated from the wet use environment of the water valve by the protective cover, so that the circuit is prevented from being damaged by water vapor.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. An electrically controlled water valve, comprising:

the valve comprises a valve body, a valve rod and a starting and closing piece arranged in the valve body, wherein one end of the valve rod is connected with the starting and closing piece, the other end of the valve rod extends out of the valve body through an opening arranged on the valve body, and a limiting pipe is surrounded on the outer side of the opening;

the mounting seat is provided with a limiting hole matched with the limiting pipe in shape;

the motor is arranged on the mounting seat, and an output shaft of the motor is in transmission connection with the end, extending out of the valve body, of the valve rod;

the limiting pipe is embedded into the limiting hole and connected with the mounting seat.

2. An electrically controlled water valve as claimed in claim 1, wherein: the limiting component comprises a limiting ring concentrically arranged on the outer wall of the limiting pipe.

3. An electrically controlled water valve as claimed in claim 2, wherein: the limiting assembly further comprises a first external thread arranged on the outer wall of the limiting pipe and a first internal thread arranged on the inner wall of the limiting hole, and the limiting pipe is in threaded connection with the limiting hole.

4. An electrically controlled water valve as claimed in claim 2, wherein: the valve cover is arranged on the opening and comprises a pressing plate part extending out of the pipe orifice of the limiting pipe;

the limiting assembly further comprises an external spline arranged on the outer wall of the limiting pipe and an internal spline arranged on the inner wall of the limiting hole, the limiting pipe is connected with the limiting hole through the spline, the pressing plate part and the limiting ring are respectively arranged on two sides of the mounting seat and used for limiting the mounting seat in the axial direction of the limiting pipe.

5. An electrically controlled water valve as claimed in claim 2, wherein: the valve cover comprises a pressing plate portion extending out of the opening of the limiting pipe, the pressing plate portion and the limiting ring are arranged on two sides of the mounting seat respectively and used for limiting the mounting seat in the axial direction of the limiting pipe shaft, and the pressing plate portion is connected with the mounting seat through a pin.

6. An electrically controlled water valve as claimed in claim 1, wherein: the valve rod is fixedly connected with the valve body in a circumferential direction, one end of the connecting shaft is circumferentially and fixedly connected with the end, extending out of the valve body, of the valve rod, the other end of the connecting shaft is in transmission connection with an output shaft of the motor, and an angle sensor used for measuring the rotating speed of the connecting shaft is arranged on the connecting shaft.

7. An electrically controlled water valve as claimed in claim 6, wherein: the output shaft of the motor is in transmission connection with the connecting shaft through the speed reducer.

8. An electrically controlled water valve as claimed in claim 1, wherein: still include the protection casing, the mount pad edge is provided with the collar, the collar outer wall is provided with the second external screw thread, the protection casing inner wall be provided with the second internal thread that the second external screw thread matches, the protection casing with collar threaded connection.