CN112212025A - Take choke valve of overflow function - Google Patents

Abstract

The invention discloses a throttle valve with an overflow function, which comprises a valve body, wherein a valve cavity is arranged in the valve body, the valve cavity is provided with a water inlet and a water outlet, a valve core is arranged in the valve body, a control device is arranged on the valve core, a main flow passage and a throttling passage which are communicated in a staggered mode are arranged in the valve core, a time-limited throttling device is arranged in the throttling passage, a rotating shaft for driving the valve core to rotate is fixedly connected onto the valve core, the rotating shaft is provided with a control device for controlling the rotating shaft to rotate, the control device comprises a screw rod, a rotating gear and a driving rack, the rotating shaft is connected with the rotating gear, the driving rack is meshed with the. The invention can complete the working effects of valve core rotation, namely main-section mode switching, throttling channel opening, throttling channel closing and section-main mode back switching by only pressing downwards, and is more in line with human engineering.

Description

Take choke valve of overflow function

Technical Field

The invention relates to the technical field of control valves, in particular to a throttling valve with an overflow function.

Background

The ball valve is a valve which drives a spherical valve core to rotate around the axis of a valve rod through the valve rod, and is provided with a valve body for opening and closing a flow path, a ball seat arranged in a mode of surrounding the valve body and a pressure ring arranged on the ball seat; ball valves can also be used for fluid regulation and control, mainly for cutting off or connecting media in pipelines, and are widely used in various industries.

The ball valve that now provides can not realize the throttle and control flow, and can't freely adjust throttle mode and common mode, and people's water often only need some large-traffic rivers from the beginning, and then do not have very high utilization ratio to the rivers of latter half section, has caused very big waste.

Aiming at the problems, the application number is 201910126291.1, the application name is a press type throttling ball valve, and the press type throttling ball valve comprises a valve body, wherein a valve cavity is arranged in the valve body, the valve cavity is provided with a water inlet and a water outlet, a valve core is arranged in the valve body, a control device is arranged on the valve core, a main flow channel and a throttling channel which are mutually communicated are arranged in the valve core, the control device controls the main flow channel or the throttling channel to be communicated with the water inlet and the water outlet, a time-limited throttling device and a throttling valve are arranged in the throttling channel, a throttling valve core is arranged in the throttling valve, and the throttling valve core controls the flow velocity of water flow; the time-limited throttling device comprises a first rack and a second rack, and the control device controls the first rack and the second rack to be separated to open the throttling channel; the invention can freely switch two output modes, can effectively throttle in a pressing type water outlet mode, and can prolong the service life of the sealing element.

However, the above document has the following drawbacks: a main flow channel and a throttling channel which are communicated with each other are arranged in the valve core, and under the condition of a first normal mode, the main flow channel is opposite to the water inlet and the water outlet so as to finish normal water outlet; in the case of the second throttling mode, the throttling channel is opposite to the water inlet and the water outlet so as to finish throttling water outlet.

When the first normal mode is converted into the second throttle mode, the screw needs to be rotated first and then pressed, which is troublesome.

Therefore, a ball valve is needed to be designed, so that a user can complete the action effects of rotating, opening the throttling channel, closing the throttling channel and rotating only by pressing, and the ball valve is more in line with human engineering.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the throttle valve with the overflow function, so that a user can complete the action effects of rotating, opening the throttle channel, closing the throttle channel and rotating only by pressing downwards, and the throttle valve is more in line with the human engineering.

In order to solve the technical problem, the invention is solved by the following technical scheme: the throttle valve with the overflow function comprises a valve body, wherein a valve cavity is arranged in the valve body, a water inlet and a water outlet are formed in the valve cavity, a valve core is arranged in the valve body, a control device is arranged on the valve core, a main flow passage and a throttling passage which are communicated in a staggered mode are arranged in the valve core, a time-limited throttling device is arranged in the throttling passage, a rotating shaft for driving the valve core to rotate is fixedly connected to the valve core, the rotating shaft is provided with a control device for controlling the rotating shaft to rotate, the control device comprises a screw rod, a rotating gear and a driving rack, the rotating shaft is connected with the rotating gear, the driving rack is meshed with the rotating gear, and the side surface of the screw rod and the driving rack are.

Further optimize, still including setting up the casing in the valve body top, screw rod side fixedly connected with first permanent magnet, the drive rack is close to the one end of screw rod side is equipped with the second permanent magnet, the drive rack is kept away from and is connected with first spring between screw rod side one end and the casing, first permanent magnet and second permanent magnet opposite face magnetic pole are the same.

And further optimizing, the time-limited throttling device comprises a first rack and a second rack, and the first rack and the second rack control the throttling channel to be opened and closed through a second permanent magnet group.

Further preferably, a first inserting groove and a second inserting groove which are communicated with the side face of the throttling channel are formed in the valve core, and the first inserting groove and the second inserting groove are located in the same vertical plane and are perpendicular to the length direction of the throttling channel; the first rack is connected in the first inserting groove in a sliding manner, and the second rack is connected in the second inserting groove in a sliding manner; the lower end of the first rack is provided with a third permanent magnet, the upper end of the second rack is provided with a fourth permanent magnet, and opposite magnetic poles of the third permanent magnet and the fourth permanent magnet are opposite.

The device is further optimized, and further comprises a driving device for driving the time-limited throttling device to open and close, wherein the driving device comprises a screw rod, a first gear is connected to the screw rod in a threaded manner, a second gear is meshed with the first gear, the second gear is meshed with the first rack, and a second spring is connected to the bottom of the screw rod; the screw rod can enable the first gear to rotate positively and negatively through up-and-down sliding.

Further optimizing, a throttle valve is further arranged in the throttle channel and comprises a throttle valve core, a drainage channel, a third spring and a throttle valve seat; a throttle valve hole which is communicated along the length direction of the first throttle channel is formed in the throttle valve seat; the throttle valve core is connected to the left side of the throttle valve seat in a sliding manner, and a third spring for forcing the throttle valve core to move leftwards is arranged on the left side of the throttle valve seat; and when the throttling valve core slides to the bottom rightwards, liquid can flow into the valve cavity from the left opening of the drainage channel.

Further optimization, the bottom of the screw is also provided with a groove; the valve core is characterized by further comprising a limiting device, wherein the limiting device comprises an electromagnet, a limiting suction block and a limiting sliding groove, the limiting suction block is connected in the limiting sliding groove in a sliding mode, a fourth spring is connected between the electromagnet and the limiting suction block, and the electromagnet is fixedly arranged in the valve core; in an initial state, the electromagnet is electrified, and the limiting suction block is contracted in the limiting sliding groove under the action of the fourth spring; after the preset time is delayed, the electromagnet is powered off, and the limiting suction block extends under the action of the fourth spring to be matched with and limited by the groove at the bottom of the screw rod.

Further optimizing, wherein the preset time is 5-10 s.

Further preferably, the screw is in splined connection with the valve core.

The invention has the beneficial effects that:

1. by repulsion of the first permanent magnet groups, a user can complete the working effects of valve core rotation, namely main-section mode switching, throttling channel opening, throttling channel closing and section-main mode switching by only pressing downwards, and the valve core switching device is more in line with human engineering.

2. In order to ensure that the working state of the throttling mode is realized when the user presses downwards to a certain degree, a limiting device is arranged, so that the screw rod is limited to continuously move downwards or upwards under the action of a spring.

3. The limiting device is an electromagnet, the electromagnet is in a normally open state, when the flow sensor detects that the drainage channel has water, timing is started, and the preset time is up, so that the electromagnet is in a disconnected state, and the screw rod can move upwards under the action of the spring.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will discuss the drawings required to be used in the embodiments or the technical solutions in the prior art, it is obvious that the technical solutions described in the figures are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings thereof can be obtained according to the embodiments shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a throttle valve with an overflow function in an initial state according to the present invention.

Fig. 2 is a schematic structural diagram of switching between the main flow mode and the throttle mode according to the present invention.

Fig. 3 is a schematic structural diagram of the opening of the time-limited throttling device in the invention.

Fig. 4 is a schematic structural diagram of the present invention in which the throttle mode is reset after use.

Fig. 5 is a partially enlarged view of fig. 2.

Fig. 6 is a partially enlarged view of fig. 3.

Fig. 7 is a cross-sectional view of the valve cartridge.

Fig. 8 is an enlarged view of the spacing device of the present invention.

In the figure: the throttle valve comprises a valve body 1, a valve core 2, a main flow passage 21, a throttle passage 22, a rotating shaft 23, a rotating gear 24, a driving rack 25, a second permanent magnet 251, a first spring 26, a screw 31, a first permanent magnet 311, a groove 32, a second spring 33, a throttle valve 4, a throttle valve core 41, a throttle valve core hole 42, a drainage passage 43, a flow sensor 431, a third spring 44, a throttle valve seat 45, a first gear 51, a second gear 52, a first rack 53, a third permanent magnet 531, a second rack 54, a fourth permanent magnet 541, an electromagnet 6, a limit suction block 7, a limit chute 71, a fourth spring 72, a water inlet 81 and a water outlet 82.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments described herein without the need for inventive work, are within the scope of the present invention.

The embodiment of the invention provides a throttle valve with an overflow function, as shown in fig. 1 to 8, comprising a valve body 1, a valve cavity is arranged in the valve body 1, the valve cavity is provided with a water inlet 81 and a water outlet 82, a valve core 2 is arranged in the valve body 1, a control device is arranged on the valve core 2, a main flow passage 21 and a throttling passage 22 which are communicated in a staggered manner are arranged in the valve core 2, a time-limited throttling device is arranged in the throttling passage 22, a rotating shaft 23 for driving the valve core 2 to rotate is fixedly connected to the valve core 2, a control device for controlling the rotating shaft 23 to rotate is arranged on the rotating shaft 23, the control device comprises a screw 31, a rotating gear 24 and a driving rack 25, the rotating shaft 23 is connected with the rotating gear 24, the driving rack 25 is engaged with the rotating gear 24, the side surface of the screw 31 is repelled, thereby rotating the rotating shaft 23.

Still including setting up the casing in valve body 1 top, screw rod 31 side fixedly connected with first permanent magnet 311, drive rack 25 is close to the one end of screw rod 31 side is equipped with second permanent magnet 251, drive rack 25 is kept away from and is connected with first spring 26 between screw rod 31 side one end and the casing, first permanent magnet 311 is the same with second permanent magnet 251 opposite face magnetic pole.

The time-limited throttling device comprises a first rack 53 and a second rack 54, and the first rack 53 and the second rack 54 control the opening and closing of the throttling channel 22 through a second permanent magnet 251 group.

A first inserting groove and a second inserting groove which are communicated with the side surface of the throttling channel 22 are formed in the valve core 2, and the first inserting groove and the second inserting groove are positioned in the same vertical plane and are vertical to the length direction of the throttling channel 22; the first rack 53 is connected in the first inserting groove in a sliding manner, and the second rack 54 is connected in the second inserting groove in a sliding manner; the lower end of the first rack 53 is provided with a third permanent magnet 531, the upper end of the second rack 54 is provided with a fourth permanent magnet 541, and the opposite magnetic poles of the third permanent magnet 531 and the fourth permanent magnet 541 are opposite.

The device further comprises a driving device for driving the time-limited throttling device to open and close, the driving device comprises the screw rod 31, a first gear 51 is connected to the screw rod 31 in a threaded mode, a second gear 52 is meshed with the first gear 51, the second gear 52 is meshed with the first rack 53, and a second spring 33 is connected to the bottom of the screw rod 31; the screw 31 can make the first gear 51 rotate forward and backward by sliding up and down.

A throttle valve 4 is further arranged in the throttle passage 22, and the throttle valve 4 comprises a throttle valve core 41, a drainage passage 43, a third spring 44 and a throttle valve seat 45; a throttle valve 4 hole penetrating along the length direction of the first throttle passage 22 is formed in the throttle valve seat 45; the throttle valve core 41 is connected to the left side of the throttle valve seat 45 in a sliding manner, and the left side of the throttle valve seat 45 is provided with a third spring 44 for forcing the throttle valve core 41 to move leftwards; and two sides of the throttle valve seat 45 are provided with drainage channels 43 communicated with the valve cavity, the left openings of the drainage channels 43 are arranged on two sides of the left end of the throttle valve core 41, and when the throttle valve core 41 slides rightwards to the bottom, liquid can flow into the valve cavity from the left openings of the drainage channels 43.

The bottom of the screw rod 31 is also provided with a groove 32; the valve core is characterized by further comprising a limiting device, wherein the limiting device comprises an electromagnet 6, a limiting suction block 7 and a limiting sliding groove 71, the limiting suction block 7 is connected in the limiting sliding groove 71 in a sliding mode, a fourth spring 72 is connected between the electromagnet 6 and the limiting suction block 7, and the electromagnet 6 is fixedly arranged in the valve core 2; in an initial state, the electromagnet 6 is electrified, and the limiting suction block 7 is contracted in the limiting sliding groove 71 under the action of the fourth spring 72; after the preset time is delayed, the electromagnet 6 is powered off, and the limit suction block 7 extends under the action of the fourth spring 72 to be matched with and limited by the groove 32 at the bottom of the screw rod 31.

Still be equipped with flow sensor 431 in drainage channel 43, when flow sensor 431 detects that drainage channel 43 has water, it begins to predetermine time countdown, it is 5~10s to predetermine time. When the flow sensor 431 detects that the drainage channel 43 is not filled with water, the electromagnet 6 is energized.

The screw 31 is in splined connection with the valve core 2.

The upper portion of the screw rod 31 is also provided with prompt scale marks which are used for prompting that the lower end of the screw rod 31 is flush with the limiting device, and prompting users to use water in a throttling mode.

When the screw 31 is at the position shown in fig. 1, the main flow passage 21 is connected with the valve cavity, and the ball valve is in an open state, so that water flows out of the water outlet 82 from the valve cavity through the main flow passage 21 to achieve the purpose of water supply; when another mode needs to be switched, namely, the mode is switched to the throttling mode, only the screw rod 31 needs to be pressed downwards slightly, at the moment, the screw rod 31 is pressed downwards, the first permanent magnet 311 is pressed downwards, when the first permanent magnet 311 moves to a position opposite to the second permanent magnet 251, under the repulsive force of the first permanent magnet 311 and the second permanent magnet 251, the driving rack 25 is driven to slide transversely, the driving rack 25 drives the rotating gear 24 to rotate, so that the rotating shaft 23 is driven to rotate, the rotating shaft 23 is fixedly connected to the valve core 2, so that the valve core 2 rotates integrally, so that the state shown in fig. 2 is reached, at the moment, the throttling channel 22 is communicated with the water inlet 81 and the water outlet 82, but the time-delay throttling device, namely, the first rack 53 and the second rack 54 block the throttling channel 22.

When water is needed, a user continues to press the screw rod 31 downwards until the scale mark is flush with the top of the valve body 1, at the moment, the scale mark prompts the user to adopt a throttling mode for water use, in the process that the screw rod 31 is pressed downwards, because the first gear 51 is in threaded fit with the screw rod 31, the first gear 51 rotates anticlockwise, the first gear 51 is vertically meshed with the second gear 52, the second gear 52 rotates clockwise to drive the first rack 53 to slide upwards to the bottom, the lower end of the first rack 53 and the upper end of the second rack 54 are respectively provided with a third permanent magnet 531 and a fourth permanent magnet 541, opposite surfaces of the third permanent magnet and the fourth permanent magnet 541 are opposite in magnetism, when the first rack 53 slides to the uppermost end of the first inserting groove, at the moment, as shown in fig. 3, along with the continuous increase of the distance between the third permanent magnet 531 and the fourth permanent magnet 541, when the mutual attraction force is smaller than, the second rack 54 slides to the bottom of the second inserting groove under the action of gravity; at this time, the water flows to the outlet of the throttling channel 22 through the inlet of the throttling channel 22; one part of the water path is communicated to the outlet through the throttle valve core hole 42, and at this time, the pressure of the water flow on the left side of the throttle valve core 41 is greater than that of the water flow on the right side of the throttle valve core 41, so that the throttle valve core 41 can press the third spring 44 to slide rightwards under the action of the water flow until the left opening of the drainage channel 43 is connected with the second throttle hole, and at this time, the water flow can also be communicated to the outlet through the drainage channels 43 on the two sides of the; in the process that water flows to the outlet through the drainage channel 43, the flow sensor 431 detects that water flows in the drainage channel 43, so that the electromagnet 6 is driven to be powered off, attraction force is not generated between the limiting suction block 7 and the electromagnet 6, the limiting suction block 7 slides transversely and enters the groove 32 at the bottom of the screw 31, the movement of the screw 31 is limited, at the moment, the screw 31 is in a static state, a user can withdraw hands from the screw 31, and then the user can use water conservation.

After a certain preset time, the electromagnet 6 is powered off, so that attraction force is generated between the limiting suction block 7 and the electromagnet 6 again, the limiting suction block 7 is enabled to transversely return and slide, the limiting suction block 7 is enabled to be separated from the groove 32 at the bottom of the screw 31, the movement of the limiting screw 31 is not stopped, at the moment, a user can apply downward force to the screw 31 again and then release his hand, as shown in fig. 4, the screw 31 is reset under the action of the second spring 33 until the screw returns to the initial position, the driving rack 25 is reset under the action of the first spring 26, so that the rotating gear 24 is driven to rotate, the rotating shaft 23 is driven to rotate, the state is shown in fig. 1 again, and the main flow channel 21 is; during the process of resetting the screw 31, the screw 31 slowly rises under the action of the second spring 33, the screw 31 is in threaded fit with the first gear 51, at this time, the first gear 51 rotates clockwise, because the first gear 51 and the second gear 52 are vertically meshed with each other, the second gear 52 rotates counterclockwise, the first rack 53 slowly slides downwards to the bottom, as the first rack 53 slides to the bottom, the relative distance between the third permanent magnet 531 and the fourth permanent magnet 541 is continuously reduced, when the attractive force between the third permanent magnet 531 and the fourth permanent magnet 541 is greater than the gravity of the second rack 54, the second rack 54 rises under the attractive force of the fourth permanent magnet to the first rack 53 to complete the sealing of the first orifice, at this time, no water flow at the inlet of the throttling channel 22 flows to the outlet of the throttling channel 22 any more, the water flow pressure at the left side of the throttling channel 22 is gradually reduced, so that the throttling valve spool 41 slides leftwards under the action of the third spring 44, at this time, the left opening of the drainage channel 43 is blocked by the throttle valve core 41, and the water flow can only flow out from the throttle valve core hole 42, so the water flow flowing out from the water outlet 82 is gradually reduced, and the water outlet amount used by the user at one time only needs to be a little from the beginning, thereby avoiding the waste of the subsequent water flow, and the user can use the water-saving flow. Until the flow sensor 431 detects that the drainage channel 43 is empty of water, the electromagnet 6 is energized and the components are reset.

In addition, the invention adopts the preset time to control the water outflow time to be 5-10 s, thereby preventing subsequent water flow waste.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. The utility model provides a take choke valve of overflow function, includes the valve body, be equipped with the valve pocket in the valve body, the valve pocket is equipped with water inlet and delivery port, be equipped with the case in the valve body, be equipped with controlling means on the case, be equipped with crisscross communicating mainstream passageway and throttle passageway in the case, throttle passageway in be equipped with time-limited throttling arrangement, its characterized in that: the rotary valve is characterized in that a rotating shaft for driving the valve core to rotate is fixedly connected to the valve core, a control device for controlling the rotating shaft to rotate is arranged on the rotating shaft, the control device comprises a screw rod, a rotating gear and a driving rack, the rotating shaft is connected with the rotating gear, the driving rack is meshed with the rotating gear, and the side face of the screw rod is repelled with the driving rack through a first permanent magnet group, so that the rotating shaft is driven to rotate.

2. The throttle valve with overflow function according to claim 1, wherein: still including setting up the casing in the valve body top, the first permanent magnet of screw rod side fixedly connected with, the drive rack is close to the one end of screw rod side is equipped with the second permanent magnet, the drive rack is kept away from and is connected with first spring between screw rod side one end and the casing, first permanent magnet and second permanent magnet opposite face magnetic pole are the same.

3. The throttle valve with overflow function according to claim 1, wherein: the time-limited throttling device comprises a first rack and a second rack, and the first rack and the second rack control the throttling channel to be opened and closed through a second permanent magnet group.

4. The throttle valve with overflow function according to claim 3, characterized in that: a first inserting groove and a second inserting groove which are communicated with the side face of the throttling channel are formed in the valve core, and the first inserting groove and the second inserting groove are positioned in the same vertical plane and are vertical to the length direction of the throttling channel; the first rack is connected in the first inserting groove in a sliding manner, and the second rack is connected in the second inserting groove in a sliding manner; the lower end of the first rack is provided with a third permanent magnet, the upper end of the second rack is provided with a fourth permanent magnet, and opposite magnetic poles of the third permanent magnet and the fourth permanent magnet are opposite.

5. The throttle valve with overflow function according to claim 1, wherein: the device comprises a screw rod, a first gear is connected to the screw rod in a threaded manner, a second gear is meshed with the first gear, the second gear is meshed with the first rack, and a second spring is connected to the bottom of the screw rod; the screw rod can enable the first gear to rotate positively and negatively through up-and-down sliding.

6. The throttle valve with overflow function according to claim 1, wherein: a throttle valve is also arranged in the throttle channel and comprises a throttle valve core, a drainage channel, a third spring and a throttle valve seat; a throttle valve hole which is communicated along the length direction of the first throttle channel is formed in the throttle valve seat; the throttle valve core is connected to the left side of the throttle valve seat in a sliding manner, and a third spring for forcing the throttle valve core to move leftwards is arranged on the left side of the throttle valve seat; and when the throttling valve core slides to the bottom rightwards, liquid can flow into the valve cavity from the left opening of the drainage channel.

7. The throttle valve with overflow function according to claim 6, wherein: the bottom of the screw rod is also provided with a groove; the valve core is characterized by further comprising a limiting device, wherein the limiting device comprises an electromagnet, a limiting suction block and a limiting sliding groove, the limiting suction block is connected in the limiting sliding groove in a sliding mode, a fourth spring is connected between the electromagnet and the limiting suction block, and the electromagnet is fixedly arranged in the valve core; in an initial state, the electromagnet is electrified, and the limiting suction block is contracted in the limiting sliding groove under the action of the fourth spring; after the preset time is delayed, the electromagnet is powered off, and the limiting suction block extends under the action of the fourth spring to be matched with and limited by the groove at the bottom of the screw rod.

8. The throttle valve with overflow function according to claim 7, wherein: still be equipped with flow sensor in the drainage channel, when flow sensor detects that drainage channel has water, it begins to predetermine time countdown, it is 5~10s to predetermine time.

9. The throttle valve with overflow function according to claim 1, wherein: the screw rod is connected with the valve core through a spline.

Images