CN218177992U - Electric valve - Google Patents

Abstract

The utility model discloses an electric valve, which comprises a valve body assembly and a control mechanism, wherein the control mechanism is used for controlling whether a pressure relief port arranged on the valve body assembly is opened or not so as to control the on-off of a water path in the valve body assembly; the control mechanism comprises a motor and a swinging piece, the motor is arranged on the valve body assembly, the swinging piece is driven by the motor, and the swinging piece drives the plugging piece arranged on the swinging piece to open or close the pressure relief opening through swinging. The utility model discloses can slowly open or close the water route, the water hammer is less, just the shutoff piece can adopt materials such as plastics or stainless steel, does not have the risk of rustting.

Description

Electric valve

Technical Field

The utility model relates to a valve especially relates to an electrically operated valve.

Background

The pilot-operated solenoid valve in the prior art usually adopts an electromagnet to adsorb an iron core, and realizes the opening and closing of a pressure relief opening, thereby realizing the opening and closing of the solenoid valve. However, the electromagnetic valve adopts the mode that the electromagnet adsorbs the iron core to control the switch, and has the following defects:

1. the electromagnet can quickly open and close the water path by adsorption, and the impact on the valve is large;

2. adopt the adsorption mode of electro-magnet, the pressure release end cap needs to contain the part of iron core, and the pressure release end cap needs contact water, leads to the iron core to have rusty risk to lead to the work to become invalid easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that prior art exists, provide an electrically operated valve, its mode that adopts motor cooperation pendulum rod realizes water route on-off control, has solved the not enough of prior art's guide formula solenoid valve adoption electro-magnet control water route switch.

The utility model provides a technical scheme that its technical problem adopted is: an electrically operated valve comprises a valve body assembly and a control mechanism, wherein the control mechanism is used for controlling whether a pressure relief opening arranged on the valve body assembly is opened or not so as to control the on-off of a water path in the valve body assembly; the control mechanism comprises a motor and a swinging piece, the motor is arranged on the valve body assembly, the swinging piece is driven by the motor, and the swinging piece drives the plugging piece arranged on the swinging piece to open or close the pressure relief opening through swinging.

Further, the swinging piece is a swinging rod which is fixed on an output shaft of the motor, or the swinging rod is rotatably connected to the valve body assembly, the output shaft of the motor is coaxially connected with a rotating shaft of the swinging rod, or the output shaft of the motor is in transmission connection with the swinging rod through a transmission component; the length direction of the swinging rod is perpendicular to the axial direction of the output shaft of the motor.

Furthermore, the rotation axis of the swinging piece is parallel to the surface where the outer end of the pressure relief opening is located.

Further, the blocking piece is a rubber mat embedded on the swinging piece.

Furthermore, the valve body assembly is provided with a fluid inlet, a fluid outlet and the pressure relief opening, a diaphragm component is arranged in an inner cavity of the valve body assembly, the diaphragm component divides the inner cavity of the valve body assembly into a main valve cavity communicated with the fluid inlet and a back pressure cavity communicated with the pressure relief opening, small holes communicated with the main valve cavity and the back pressure cavity are formed in the diaphragm component, and the diaphragm component controls whether the main valve cavity is communicated with the fluid outlet or not according to the water pressure change of the back pressure cavity.

Furthermore, the diaphragm component comprises a diaphragm and a supporting cover, the diaphragm is arranged on the supporting cover, and the peripheral edge of the diaphragm protrudes out of the peripheral edge of the supporting cover and is in a fixed state; the supporting cover is provided with a support column penetrating through the diaphragm, and the support column is of a hollow structure with two through ends so as to form the small hole.

Further, the valve body assembly comprises a valve main body, a fixing frame, wherein the valve main body is provided with the fluid inlet, the fluid outlet and the pressure relief port, and the inner cavity is formed; the fixing frame is fixed outside the valve main body, and the motor is installed on the fixing frame.

Furthermore, the number of the diaphragm parts is multiple, so that multiple back pressure cavities are formed in the valve body assembly, and the main valve cavities obtained by respectively dividing the multiple diaphragm parts in the valve body assembly are the same; the number of the pressure relief ports and the number of the control mechanisms are respectively multiple, the pressure relief ports are communicated with the back pressure cavities in a one-to-one correspondence mode, and the swinging pieces are matched with the pressure relief ports in a one-to-one correspondence mode.

Furthermore, the number of the diaphragm parts, the number of the pressure relief ports and the number of the control mechanisms are two respectively.

Furthermore, the number of the diaphragm part, the pressure relief opening and the control mechanism is respectively one.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the control mechanism comprises the motor and the swinging piece, the motor is arranged on the valve body assembly, and the swinging piece is driven by the motor to drive the plugging piece arranged on the swinging piece to open or close the pressure relief opening through swinging, so that the control mechanism of the utility model can slowly open or close the water path to reduce water hammer; the plugging piece can be made of plastic or stainless steel and the like, and the risk of rusting is avoided.

2. The swinging piece is directly driven by the motor, so that the control mechanism is simpler and more compact in structure, and the occupied space is reduced.

3. The rotation axis of the swinging piece is parallel to the surface where the outer end of the pressure relief opening is located, so that when the plugging piece is matched with the pressure relief opening in an opening and closing mode, friction is small, and abrasion of the plugging piece is reduced.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment.

Drawings

Fig. 1 is a schematic perspective view of the first embodiment of the present invention;

FIG. 2 is a sectional view of the first embodiment of the present invention in an initial state;

fig. 3 is a schematic view (section view) illustrating the working state of the utility model in the first embodiment when water is discharged;

fig. 4 is a schematic view (section view) illustrating the operation state of the first embodiment of the present invention when water is shut off;

FIG. 5 is a schematic perspective view of the second embodiment of the present invention;

FIG. 6 is a sectional view of the second embodiment of the present invention in an initial state;

fig. 7 is a schematic view (cross-sectional view) of the second embodiment of the present invention showing the working state when one of the fluid outlets is discharged;

fig. 8 is a schematic view (cross section) showing the working state of the second embodiment of the present invention when another fluid outlet is discharging water;

fig. 9 is a schematic view (cross-sectional view) of the second embodiment of the present invention showing the working state when water is discharged from both fluid outlets;

the valve comprises a valve body assembly 1, a valve body assembly 11, a valve main body 12, a fixing frame 111, a fluid inlet 112, a fluid outlet 113, a pressure relief opening 114, a main valve cavity 115, a back pressure cavity 2, a diaphragm part 21, a diaphragm 22, a supporting cover 3, a motor 4, a swing rod 5 and a blocking part.

Detailed Description

In the description, the directions or positional relationships indicated by "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the scope of the present invention. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

Example one

Referring to fig. 1-4, the electrically operated valve of the present invention includes a valve body assembly 1 and a control mechanism, wherein the valve body 1 has a pressure relief opening 113, and the control mechanism is used to control whether the pressure relief opening 113 of the valve body assembly is opened or not, so as to control the on-off of the water path inside the valve body assembly. Specifically, the valve body assembly 1 is provided with a fluid inlet 111, a fluid outlet 112 and the pressure relief port 113, a diaphragm part 2 is movably arranged in an inner cavity of the valve body assembly 1, the diaphragm part 2 divides the inner cavity of the valve body assembly 1 into a main valve cavity 114 communicated with the fluid inlet 111 and a back pressure cavity 115 communicated with the pressure relief port 113, a small hole (not shown in the figure) communicating the main valve cavity 114 with the back pressure cavity 115 is arranged on the diaphragm part 2, and the diaphragm part 2 controls whether the main valve cavity 114 is communicated with the fluid outlet 112 or not according to the water pressure change of the back pressure cavity 115. The control mechanism comprises a motor 3 and a swinging piece, the motor 3 is arranged in the valve body assembly 1, the swinging piece is driven by the motor 3, and the swinging piece drives a plugging piece 5 arranged on the swinging piece to open or close the pressure relief opening 113 through swinging.

In this embodiment, the oscillating member is a swing rod 4, one end of the swing rod 4 is rotatably connected to the valve body assembly, an output shaft of the motor 3 is fixedly connected to a rotating shaft of the swing rod 4 in the same shaft, and the other end of the swing rod 4 is provided with the blocking member 5. In other embodiments, the output shaft of the motor is in transmission connection with the rotating shaft of the swing rod through a transmission shaft, and in other embodiments, the swing rod is fixed to the output shaft of the motor.

In this embodiment, the rotation axis of the swing rod 4 is parallel to the surface where the outer end of the pressure relief opening 113 is located, so that the blocking piece 5 moves towards the inward direction of the pressure relief opening 113 to close the pressure relief opening 113, and the blocking piece 5 moves towards the outward direction of the pressure relief opening to close the pressure relief opening 113, so that when the blocking piece is matched with the pressure relief opening in an opening and closing manner, the blocking piece is less worn. The pressure relief opening 113 faces upwards, and when the blocking piece 5 closes the pressure relief opening 113, the swing rod 4 is approximately horizontal. The blocking piece 5 is a rubber mat and is embedded at the bottom of the other end of the swing rod 4.

In this embodiment, the motor 3 is preferably a self-locking motor with a speed reduction mechanism, and it is ensured that the swing rod 4 does not rotate under the conditions of vibration or a magnetic field when the motor is not powered on.

In this embodiment, the diaphragm member 2 includes a diaphragm 21 and a support cover 22, the diaphragm 21 is mounted on the support cover 22, and the peripheral edge of the diaphragm 21 protrudes from the peripheral edge of the support cover 22 and is in a fixed state; the supporting cover 22 is provided with a pillar (not shown) penetrating through the membrane 21, and the pillar has a hollow structure with two penetrating ends to form the small hole.

In this embodiment, the valve body assembly 1 includes a valve main body 11 and a fixing frame 12, the valve main body 11 is provided with the fluid inlet 111, the fluid outlet 112 and the pressure relief port 113, and the inner cavity is formed; the fixing frame 12 is fixed outside the valve main body 11, the motor 3 is installed on the fixing frame 12, and the swing rod 4 is rotatably connected to the fixing frame 12. The valve body 11 comprises a valve casing and a valve cover which are connected together and enclose the inner cavity, the pressure relief port 113 is arranged on the valve cover, the fluid inlet 111 and the fluid outlet 112 are arranged on the valve casing, the peripheral edge of the diaphragm 21 is pressed on the valve casing by the valve cover, and when the diaphragm 21 is positioned, the peripheral edge of the diaphragm 21 can be used for sealing the gap between the valve cover and the valve casing.

In this embodiment, the number of the diaphragm member 2, the fluid outlet 112, the pressure relief port 113, and the control mechanism is one, respectively, and therefore, the present invention constitutes a single water path.

The utility model discloses an electrically operated valve, its initial state is as shown in figure 2, and at this moment, motor 3 does not start, and the shutoff piece 5 of the pendulum rod 4 other end blocks up pressure release mouth 113, the water pressure in main valve chamber 114 and backpressure chamber 115 equals because the cross sectional area of backpressure chamber 115 is bigger for diaphragm part 2 middle part is pushed down, thereby breaks off main valve chamber 114 and fluid outlet 112, makes fluid outlet 112 water not. When the motor 3 drives the swing rod 4 to rotate clockwise by a preset angle, the other end of the swing rod 4 tilts upwards to open the pressure relief port 113, water in the back pressure cavity 115 flows out through the pressure relief port 113, so that the water pressure of the back pressure cavity 115 is greatly reduced, at the moment, the water pressure in the main valve cavity 114 is far greater than the water pressure of the back pressure cavity 115, therefore, the middle part of the diaphragm part 2 moves upwards under the pushing of the water pressure of the main valve cavity 114, so that the main valve cavity 114 is communicated with the fluid outlet 112, water flows out from the fluid outlet 112, as shown in fig. 3, a thin arrow in the figure indicates the water flow direction, and a thick arrow indicates the rotation direction of the swing rod. When the motor 3 drives the swing rod 4 to rotate counterclockwise by a preset angle, the swing rod 4 is reset, so that the blocking piece 5 blocks the pressure relief opening 113 again, water in the main valve cavity 114 is gradually supplemented into the back pressure cavity 115 from the small hole on the diaphragm component 2, the water pressure in the back pressure cavity 115 is gradually increased until the water pressure is equal to that of the main valve cavity 114, at the moment, the middle part of the diaphragm component 2 is pressed down due to the large cross-sectional area of the back pressure cavity 115, and the main valve cavity 114 is disconnected from the fluid outlet 112, as shown in fig. 4. In order to quickly return the diaphragm member 2, a return spring may be provided in the back pressure chamber 115, and the return of the diaphragm member 2 may be accelerated by the return spring.

The utility model discloses an electrically operated valve, it compares with prior art's solenoid valve, can slowly open or close the water route, makes water less to the impact of valve body assembly, just the shutoff piece can adopt materials such as plastics or stainless steel, does not have the risk of rustting.

Example two

Referring to fig. 5-9, an electrically operated valve of the present invention is different from the first embodiment in that: the number of the diaphragm parts 2 is multiple, so that a plurality of back pressure cavities 115 are formed in the valve body assembly 1, and the main valve cavities 114 obtained by separating the plurality of diaphragm parts 2 in the valve body assembly 1 are the same; the number of the fluid outlets 112, the number of the pressure relief ports 113 and the number of the control mechanisms are respectively multiple, the pressure relief ports 13 are communicated with the back pressure cavity 115 in a one-to-one correspondence manner, the swing rods 4 are matched with the pressure relief ports 113 in a one-to-one correspondence manner, and the fluid outlets 112 are in one-to-one correspondence with the diaphragm parts 2.

In this embodiment, the number of the diaphragm member 2, the fluid outlet 112, the pressure relief port 113, and the control mechanism is two, but not limited thereto. Therefore, the utility model discloses constitute two water route forms. The two diaphragm parts 2, the two fluid outlets 112, the two pressure relief ports 113 and the two control mechanisms are respectively distributed left and right.

The utility model discloses an electrically operated valve, its initial state is as shown in figure 6, and at this moment, two control mechanism's motor 3 all does not start, and corresponding pressure release mouth 113 is plugged up respectively to the shutoff piece 5 of the 4 other ends of pendulum rod of two control mechanism, and consequently, two fluid outlet 112 are all not out of water. When only the left motor 3 is started, the left motor 3 drives the left swing rod 4 to rotate clockwise by a preset angle, so that the other end of the left swing rod 4 tilts upwards, the left pressure relief port 113 is opened, the left back pressure cavity 115 relieves pressure through the left pressure relief port 113, the water pressure of the left back pressure cavity 115 is greatly reduced, at the moment, the water pressure in the main valve cavity 114 is far greater than the water pressure of the left back pressure cavity 115, therefore, the middle part of the left diaphragm part 2 moves upwards under the pushing of the water pressure of the main valve cavity 114, the main valve cavity 114 is communicated with the left fluid outlet 112, and water flows out from the left fluid outlet 112, as shown in fig. 7. When only starting the motor 3 on the right, the motor 3 on the right drives the pendulum rod 4 on the right to rotate anticlockwise and preset the angle, make the other end of the pendulum rod 4 on the right upwarp, thereby open the pressure relief opening 113 on the right, the back pressure chamber 115 on the right carries out the pressure relief through the pressure relief opening 113 on the right, make the water pressure in the back pressure chamber 115 on the right reduce by a wide margin, at this moment, the water pressure in the main valve chamber 114 is far greater than the water pressure in the back pressure chamber 115 on the right, therefore, the middle part of the right diaphragm part 2 moves up under the hydraulic promotion of the main valve chamber 114, thereby make the main valve chamber 114 and the fluid outlet 112 on the right communicate, water flows out from the fluid outlet 112 on the right, as shown in fig. 8, the thin arrow in the figure indicates the rivers direction, the thick arrow indicates the direction of rotation of pendulum rod.

When the two motors 3 are respectively started, the left motor 3 drives the left swing rod 4 to rotate clockwise for a preset angle, the right motor 3 drives the right swing rod 4 to rotate anticlockwise for a preset angle, so that the two pressure relief ports 113 are respectively opened, water in the two back pressure cavities 115 respectively flows out through the corresponding pressure relief ports 113, and the water pressure of the two back pressure cavities 115 is respectively greatly reduced and is smaller than that of the main valve cavity 114, therefore, the middle parts of the two diaphragm parts 2 respectively move upwards under the pushing of the water pressure in the main valve cavity 114, so that the main valve cavity 114 is communicated with the two fluid outlets 112, and water flows out from the two fluid outlets 112, as shown in fig. 9, the thin arrows in the figure indicate the water flow direction, and the thick arrows indicate the rotation direction of the swing rods.

When the water is shut off, the motor 3 drives the swing rod 4 to rotate reversely by a preset angle, the swing rod 4 is reset to the initial position, the blocking piece 5 blocks the pressure relief opening 113 again, the water in the main valve cavity 114 is gradually supplemented into the back pressure cavity 115 from the small hole on the diaphragm component 2, the water pressure in the back pressure cavity 115 is gradually increased until the water pressure is equal to that of the main valve cavity 114, at the moment, the middle part of the diaphragm component 2 is pressed down due to the fact that the cross section area of the back pressure cavity 115 is large, and therefore the main valve cavity 114 is communicated with the fluid outlet 112 in a disconnected mode.

The utility model discloses an electrically operated valve, it all is the same with prior art or can adopt prior art to realize not to relate to the part.

The above embodiments are only used to further illustrate the electric valve of the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification made by the technical entity of the present invention to the above embodiments all fall into the protection scope of the technical solution of the present invention.

Claims (10)

1. An electrically operated valve comprises a valve body assembly and a control mechanism, wherein the control mechanism is used for controlling whether a pressure relief opening arranged on the valve body assembly is opened or not so as to control the on-off of a water path in the valve body assembly; the method is characterized in that: the control mechanism comprises a motor and a swinging piece, the motor is arranged on the valve body assembly, the swinging piece is driven by the motor, and the swinging piece drives the plugging piece arranged on the swinging piece to open or close the pressure relief opening through swinging.

2. The electrically operated valve of claim 1, wherein: the swing piece is a swing rod which is fixed on an output shaft of the motor, or the swing rod is rotationally connected to the valve body assembly, the output shaft of the motor is coaxially connected with a rotating shaft of the swing rod, or the output shaft of the motor is in transmission connection with the swing rod through a transmission component; the length direction of the swinging rod is perpendicular to the axial direction of the output shaft of the motor.

3. The electrically operated valve of claim 1, wherein: the rotation axis of the swinging piece is parallel to the surface where the outer end of the pressure relief opening is located.

4. Electrically operated valve according to claim 1, characterized in that: the blocking piece is a rubber pad embedded on the swinging piece.

5. Electrically operated valve according to any of claims 1-4, characterized in that: the valve body assembly is provided with a fluid inlet, a fluid outlet and the pressure relief opening, a diaphragm part is arranged in an inner cavity of the valve body assembly, the diaphragm part divides the inner cavity of the valve body assembly into a main valve cavity communicated with the fluid inlet and a back pressure cavity communicated with the pressure relief opening, small holes communicated with the main valve cavity and the back pressure cavity are formed in the diaphragm part, and the diaphragm part controls the main valve cavity to be communicated with the fluid outlet or not according to the water pressure change of the back pressure cavity.

6. Electrically operated valve according to claim 5, characterized in that: the valve body assembly comprises a valve main body, a fixing frame and a pressure relief port, wherein the valve main body is provided with the fluid inlet, the fluid outlet and the pressure relief port, and the inner cavity is formed; the fixing frame is fixed outside the valve main body, and the motor is installed on the fixing frame.

7. Electrically operated valve according to claim 5, characterized in that: the number of the diaphragm parts is multiple, so that a plurality of back pressure cavities are formed in the valve body assembly, and the main valve cavities obtained by separating the diaphragm parts in the valve body assembly are the same; the number of the pressure relief ports and the number of the control mechanisms are respectively multiple, the pressure relief ports are communicated with the back pressure cavities in a one-to-one correspondence mode, and the swinging pieces are matched with the pressure relief ports in a one-to-one correspondence mode.

8. The electrically operated valve of claim 7, wherein: the number of the diaphragm parts, the pressure relief ports and the control mechanisms is two respectively.

9. The electrically operated valve of claim 5, wherein: the number of the diaphragm parts, the fluid outlet, the pressure relief port and the control mechanism is respectively one.

10. Electrically operated valve according to claim 5, characterized in that: the diaphragm component comprises a diaphragm and a supporting cover, wherein the diaphragm is arranged on the supporting cover, and the peripheral edge of the diaphragm protrudes out of the peripheral edge of the supporting cover and is in a fixed state; the supporting cover is provided with a support column penetrating through the diaphragm, and the support column is of a hollow structure with two through ends so as to form the small hole.

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