Automatic water stop valve

Abstract

The utility model relates to the technical field of valves, in particular to an automatic water stop valve which comprises a valve pipe, a valve core, a handle, a controller capable of being externally connected and a water stop mechanism, the valve core is movably arranged in the valve pipe, a water stop through groove is formed in the valve pipe, the handle is arranged in the water stop through groove in a penetrating mode and fixedly connected with the valve core, and the water stop mechanism is fixedly connected with the handle. The water stopping mechanism is fixedly arranged outside the valve pipe, a push rod is arranged on the water stopping mechanism, an induction piece is arranged at the end of the push rod, the handle can abut against the induction piece, and the controller is electrically connected with the water stopping mechanism and the induction piece. According to the utility model, long-time water leakage caused by water pipe burst, faults of equipment such as toilets and bathrooms or manual negligence is avoided, the water use safety is improved, and property loss caused by soaking furniture and floors in water is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field more particularly, relate to a kind of automatic water stop valve. BACKGROUND

[0002] Water is needed in industrial production or daily life. In the use of water, it is inevitable that long-time water flow or leakage will occur due to negligence or pipeline and equipment failure. Therefore, an automatic water stop valve is needed to detect water leakage and close the pipeline in time. SUMMARY

[0003] The utility model aims at overcoming the deficiency that the prior art cannot detect water leakage and automatically stop water, and provides an automatic water stop valve that can detect water leakage and automatically stop water.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of:

[0005] The utility model provides an automatic water stop valve, which comprises a valve pipe, a valve core, a handle, an externally connected controller and a water stop mechanism. The valve core is movably arranged in the valve pipe. A water stop channel is formed in the valve pipe. The handle is arranged in the water stop channel and fixedly connected with the valve core. The water stop mechanism is fixedly arranged outside the valve pipe. A push rod is arranged on the water stop mechanism. An induction sheet is arranged on the end of the push rod. The handle can abut against the induction sheet. The controller is electrically connected with the water stop mechanism and the induction sheet.

[0006] By this arrangement, the automatic water stop valve is installed in the water line. When water is used, the water pressure drives the valve core to move, the valve pipe is opened, the valve core drives the handle to move, the handle abuts against the induction sheet on the push rod, the induction sheet sends an electric signal to the controller, the controller counts the water supply time, and when the water supply time reaches the preset maximum value, it is determined that there is water leakage. The controller sends an electric signal to the water stop mechanism, the water stop mechanism works, the push rod drives the valve core to move, the valve core closes the valve pipe, and the water stop purpose is achieved. The automatic water stop valve can detect long-time water leakage caused by equipment failure or human error, block the pipeline to stop the leakage, and effectively reduce the waste of water resources.

[0007] Preferably, the valve core is hollow, one end of the valve core is provided with a blocking cover, the valve core is elastically connected with the valve pipe through an elastic member, a water passage is arranged on the valve pipe, a limiting boss is arranged on the side of the water passage close to the water inlet of the valve pipe, the blocking cover abuts against the limiting boss, a water passage hole is further arranged on the valve core, and the hollow part of the valve core is communicated with the water passage through the water passage hole.

[0008] Through the setting mode, when water is not used, the blocking cover of the valve core abuts against the limiting boss, at this time the water channel on the valve pipe is not communicated with the water inlet end of the valve pipe, when water is used, the water pressure of the water inlet end of the valve pipe increases, the valve core is pushed to extrude the elastic member to move, the blocking cover is away from the limiting boss, the water inlet end of the valve pipe is communicated with the water channel, and because the water channel is communicated with the water hole, water flows to the water outlet end of the valve pipe after entering the hollow valve core.

[0009] Preferably, the water stopping channel comprises a first groove and a second groove, the first groove extends towards the water stopping mechanism, the second groove is perpendicular to the first groove, and the first groove and the second groove are communicated to form an L-shaped structure.

[0010] Through the setting mode, when the water stopping mechanism works normally, the handle slides along the first groove, the push rod of the water stopping mechanism can push the handle to slide along the first groove to close the valve pipe, when the water stopping mechanism fails, if water leakage occurs, the handle cannot be normally pushed by the water stopping mechanism to close the valve pipe, at this time, the handle can be manually rotated into the second groove, the handle is limited from sliding along the first groove through the limiting of the second groove, so that the valve pipe is temporarily closed.

[0011] Preferably, the water stopping mechanism further comprises a driving motor, a machine shell and a threaded transmission member, the driving motor is arranged in the machine shell, the controller is electrically connected with the driving motor, the driving motor is connected with the outer side of the threaded transmission member, a threaded hole is formed in the threaded transmission member, a threaded section is arranged at the tail of the push rod, the threaded section is threadedly connected with the threaded hole, and the push rod is slidably connected with the machine shell.

[0012] Through the setting mode, when the controller monitors that the valve core is in the through state for a long time, the controller sends an instruction to the driving motor, the driving motor rotates, the driving motor drives the threaded transmission member to rotate, because the push rod is slidably connected with the machine shell and is threadedly connected with the threaded transmission member at the same time, a screw-nut transmission pair is formed between the threaded transmission member and the push rod, when the threaded transmission member rotates, the push rod is pushed to move forward, so that the push rod pushes the handle to drive the valve core to close. The structure of the screw-nut transmission pair is favorable for providing a larger driving force, so as to ensure that the valve core can be pushed to close when the water pressure is large, and the screw-nut transmission pair has self-locking property, when the push rod pushes the valve core to close and the driving motor is powered off, the push rod will not continue to move, so that the valve core cannot be opened again after the driving mechanism is powered off.

[0013] Preferably, an outer spline is arranged at the front of the push rod, an inner spline is formed in the machine shell, and the outer spline of the push rod is spline-connected with the inner spline of the machine shell.

[0014] Through the setting mode, the spline connection limits the relative rotation between the push rod and the machine shell.

[0015] Preferably, the water-stopping mechanism further comprises a connecting assembly, and the driving motor is electrically connected with an external controller through the connecting assembly.

[0016] Through the arrangement, the automatic water-stopping valve can be connected with the external controller through the connecting assembly and connected to the electronic control system, so that the leakage can be reported in time to remind the user to monitor the waterway working condition.

[0017] Preferably, an installation groove is formed in the valve pipe, and the water-stopping mechanism is fixedly arranged in the installation groove. Through the arrangement, the connection between the water-stopping mechanism and the valve pipe is stable.

[0018] Preferably, the valve pipe comprises a first pipe, a second pipe and a third pipe connected in sequence, the first pipe is fixedly sleeved outside the second pipe, the valve core is slidingly arranged in the second pipe, the tail portion of the second pipe is also fixedly sleeved at the head portion of the third pipe, and the valve core is also elastically connected with the third pipe.

[0019] Through the arrangement, the limiting boss and the water passage groove which need special processing are concentrated on the second pipe, and the first pipe and the third pipe are both ordinary pipe fittings, so that the production cost is reduced.

[0020] Preferably, a sealing ring is arranged between the second pipe and the third pipe.

[0021] Through the arrangement, the leakage between the second pipe and the third pipe can be avoided.

[0022] Preferably, the water-stopping passage is arranged on the second pipe, the first pipe is also provided with a clearance groove for avoiding the handle, and the clearance groove is located above the water-stopping passage.

[0023] Preferably, the water-stopping mechanism drives the push rod to move through a linear stepping motor.

[0024] Compared with the prior art, the utility model has the advantages of:

[0025] (1) Through the arrangement of the valve core, the handle and the water-stopping mechanism, the long-time water leakage caused by the water pipe burst, equipment failure or human negligence is avoided, the water safety is improved, and the property loss is prevented.

[0026] (2) Through the arrangement of the water-stopping passage, when the water-stopping mechanism cannot work normally, the pipeline can be manually closed through the handle and the water-stopping passage, so that the safety is improved.

[0027] (3) Through the arrangement of the water-stopping mechanism, the screw nut transmission pair structure is adopted, so that even if the driving motor is powered off after stopping water, the waterway will not be opened again, and the energy consumption is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 It is a three-dimensional structure schematic view of the automatic water stop valve of the utility model;

[0029] Fig. 2 It is a structure schematic view of the automatic water stop valve of the utility model;

[0030] Fig. 3 It is a structure schematic view of another view of the automatic water stop valve of the utility model.

[0031] The illustration marks are explained as follows:

[0032] 1, valve pipe;11, water stop through slot;111, first slot;112, second slot;12, water through slot;13, limiting boss;14, mounting slot;15, first pipe;151, empty slot;16, second pipe;17, third pipe;18, sealing ring;2, valve core;21, plugging cover;22, elastic piece;23, water through hole;3, handle;4, water stop mechanism;41, push rod;411, outer spline;42, driving motor;43, machine shell;431, inner spline;44, threaded transmission part;45, connecting assembly. DETAILED DESCRIPTION

[0033] The utility model will be further explained in combination with specific implementation manners. Among them, the drawing is only used for example explanation, and the representation is only a schematic view, and cannot be understood as the limitation of the patent; in order to better explain the embodiment of the utility model, some components of the drawing will be omitted, enlarged or reduced, and the size of actual product is not represented;For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawing can be omitted.

[0034] The same or similar labels in the drawing of the embodiment of the utility model correspond to the same or similar components;In the description of the utility model, it is understood that if there are terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore the positional relationship of the term described in the drawing is only used for example explanation, and cannot be understood as the limitation of the patent, for the ordinary skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0035] Example 1

[0036] As Figs. 1 to 3The utility model discloses an automatic water stop valve, which comprises a valve pipe 1, a valve core 2, a handle 3, an external controller and a water stop mechanism 4.

[0037] Through the setting mode, the automatic water stop valve is installed in the waterway, when water is used, the water pressure pushes the valve core 2 to move, the valve pipe 1 is opened, the valve core 2 drives the handle 3 to move, the handle 3 abuts against the inductive sheet on the push rod 41, the inductive sheet sends an electric signal to the controller, the controller counts the water passing time, when the water passing time reaches the preset maximum value, it is determined that water leaks, the controller sends an electric signal to the water stop mechanism 4, the water stop mechanism 4 works, the push rod 41 pushes the valve core 2 to move, the valve core 2 closes the valve pipe 1, and the water stop purpose is realized, the automatic water stop valve can detect long-time water leakage caused by equipment failure or human error, block the pipeline to stop the loss, and effectively reduce the waste of water resources.

[0038] As an embodiment of the utility model, the valve core 2 is hollow, one end of the valve core 2 is provided with a blocking cover 21, the valve core 2 is further elastically connected with the valve pipe 1 through an elastic element 22, the valve pipe 1 is provided with a water passing groove 12, the water passing groove 12 is further provided with a limiting boss 13 close to the water inlet side of the valve pipe 1, the blocking cover 21 abuts against the limiting boss 13, the valve core 2 is further provided with a water passing hole 23, and the hollow part of the valve core 2 is communicated with the water passing groove 12 through the water passing hole 23.

[0039] Through the setting mode, when water is not used, the blocking cover 21 of the valve core 2 abuts against the limiting boss 13, at this time, the water passing groove 12 on the valve pipe 1 is not communicated with the water inlet end of the valve pipe 1, when water is used, the water pressure of the water inlet end of the valve pipe 1 increases, pushes the valve core 2 to extrude the elastic element 22 to move, the blocking cover 21 is away from the limiting boss 13, the water inlet end of the valve pipe 1 is communicated with the water passing groove 12, and because the water passing groove 12 is communicated with the water passing hole 23, water flows to the water outlet end of the valve pipe 1 after entering the hollow valve core 2.

[0040] As an embodiment of the utility model, the water stop groove 11 comprises a first groove 111 and a second groove 112, the first groove 111 extends towards the water stop mechanism 4, the second groove 112 is perpendicular to the first groove 111, and the first groove 111 and the second groove 112 are communicated to form an L-shaped structure.

[0041] Through the setting mode, when the water stop mechanism 4 normally works, the handle 3 slides along the first groove 111, and the push rod 41 of the water stop mechanism 4 can push the handle 3 to slide along the first groove 111 to close the valve pipe 1; when the water stop mechanism 4 fails, if water leakage occurs and the handle 3 cannot be normally pushed by the water stop mechanism 4 to close the valve pipe 1, the handle 3 can be manually rotated into the second groove 112 at this time, and the handle 3 is limited from sliding along the first groove 111 through the limiting of the second groove 112, thereby achieving the purpose of temporarily closing the valve pipe 1.

[0042] As an embodiment of the utility model, the water stop mechanism 4 further comprises a driving motor 42, a machine shell 43 and a threaded transmission member 44, the driving motor 42 is arranged in the machine shell 43, the controller is electrically connected with the driving motor 42, the driving motor 42 is connected with the outer side of the threaded transmission member 44, the threaded transmission member 44 is provided with a threaded hole, the tail part of the push rod 41 is provided with a threaded section, the threaded section is screw connected with the threaded hole, and the push rod 41 is further slidably connected with the machine shell 43.

[0043] Through the setting mode, when the controller monitors that the valve core 2 is in the through state for a long time, the controller sends an instruction to the driving motor 42, the driving motor 42 rotates, the driving motor 42 drives the threaded transmission member 44 to rotate, the push rod 41 is slidably connected with the machine shell 43, and the push rod 41 is screw connected with the threaded transmission member 44 at the same time, a screw nut transmission pair is formed between the threaded transmission member 44 and the push rod 41, when the threaded transmission member 44 rotates, the push rod 41 is pushed to move forward, thereby making the push rod 41 push the handle 3 to drive the valve core 2 to close. The structure of the screw nut transmission pair is favorable for providing a larger driving force, so that the valve core 2 can be pushed to close when the water pressure is larger, and the screw nut transmission pair has self-locking property, when the push rod 41 pushes the valve core 2 to close and the driving motor 42 is powered off, the push rod 41 will not continue to move at this time, thereby avoiding that the valve core 2 is opened again after the driving mechanism is powered off.

[0044] As an embodiment of the utility model, the front part of the push rod 41 is provided with an external spline 411, the machine shell 43 is provided with an internal spline 431, and the external spline 411 of the push rod 41 is spline connected with the internal spline 431 of the machine shell 43.

[0045] Through the setting mode, the spline connection limits the relative rotation between the push rod 41 and the machine shell 43.

[0046] As an embodiment of the utility model, the water stop mechanism 4 further comprises a connecting assembly 45, and the driving motor 42 is electrically connected with the external controller through the connecting assembly 45.

[0047] Through the setting mode, the automatic water stop valve can be connected with the external controller through the connecting assembly 45 and connected into an electronic control system, so that the leakage can be timely reported and reminded, and the user can monitor the waterway working condition.

[0048] Embodiment 2

[0049] The following is a second embodiment of the automatic water stop valve of the utility model, which is similar to embodiment 1, and the difference lies in that the valve pipe 1 is further limited.

[0050] As an embodiment of the utility model, the valve pipe 1 is provided with a mounting groove 14, and the water stop mechanism 4 is fixedly arranged on the mounting groove 14. Through this setting mode, it is beneficial to the stable connection between the water stop mechanism 4 and the valve pipe 1.

[0051] As an embodiment of the utility model, the valve pipe 1 comprises a first pipe 15, a second pipe 16 and a third pipe 17 connected in sequence, the first pipe 15 is fixedly sleeved on the second pipe 16, the valve core 2 is slidingly arranged in the second pipe 16, the tail part of the second pipe 16 is also fixedly sleeved on the head part of the third pipe 17, and the valve core 2 is also elastically connected with the third pipe 17.

[0052] Through this setting mode, the limiting boss 13, the water passage groove 12 and other structures which need special processing are concentrated on the second pipe 16, the first pipe 15 and the third pipe 17 are both ordinary pipes, which is beneficial to reduce the production cost.

[0053] As an embodiment of the utility model, the second pipe 16 and the third pipe 17 are also provided with a sealing ring 18.

[0054] Through this setting mode, leakage between the second pipe 16 and the third pipe 17 can be fully avoided.

[0055] As an embodiment of the utility model, the water stop passage 11 is arranged on the second pipe 16, the first pipe 15 is also provided with a clearance groove 151 for avoiding the handle 3, and the clearance groove 151 is located above the water stop passage 11.

[0056] Embodiment 3

[0057] The following is a third embodiment of the automatic water stop valve of the utility model, which is similar to embodiment 1, and the difference lies in that the setting mode of the water stop mechanism 4 is different.

[0058] As an embodiment of the utility model, the water stop mechanism 4 adopts a linear stepper motor to drive the push rod 41 to move.

[0059] As an embodiment of the utility model, the maximum thrust of the linear stepper motor is 60N, the step angle is 1.8°, the lead is 1mm, the step length is 0.005mm, the effective stroke is 6mm, and the highest rotating speed is 600r / min.

[0060] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. An automatic water stop valve, characterized by, The utility model provides a valve pipe (1), valve core (2), handle (3), the controller of external connection and water stop mechanism (4), valve core (2) activity installs in valve pipe (1), the water stop through groove (11) is seted up on valve pipe (1), handle (3) is passed and is set up in water stop through groove (11) with valve core (2) fixed connection, water stop mechanism (4) fixed installation is located outside valve pipe (1), water stop mechanism (4) is equipped with push rod (41), the end of push rod (41) is equipped with inductive sheet, handle (3) can be with inductive sheet abuts, controller is connected with water stop mechanism (4) and inductive sheet electricity respectively.

2. The automatic shutoff valve of claim 1, wherein, The valve core (2) is hollowly arranged, one end of the valve core (2) is provided with a sealing cover (21), the valve core (2) is further elastically connected with the valve pipe (1) through an elastic element (22), the valve pipe (1) is provided with a water passage (12), the water passage (12) is further provided with a limiting boss (13) near the water inlet side of the valve pipe (1), the sealing cover (21) abuts against the limiting boss (13), the valve core (2) is further provided with a water passage hole (23), the hollow part of the valve core (2) is communicated with the water passage (12) through the water passage hole (23).

3. The automatic shutoff valve of claim 1, wherein, The water stop through groove (11) comprises a first groove (111) and a second groove (112), the first groove (111) extends towards the water stop mechanism (4), the second groove (112) is perpendicular to the first groove (111), and the first groove (111) and the second groove (112) are communicated to form an L-shaped structure.

4. The automatic shutoff valve of claim 1, wherein, The water stop mechanism (4) further comprises a driving motor (42), a machine shell (43) and a threaded transmission member (44), the driving motor (42) is arranged in the machine shell (43), the controller is electrically connected with the driving motor (42), the driving motor (42) is fixedly connected with the outer side of the threaded transmission member (44), the threaded transmission member (44) is provided with a threaded hole, the tail of the push rod (41) is provided with a threaded section, the threaded section is threadedly connected with the threaded hole, and the push rod (41) is further slidably connected with the machine shell (43).

5. The automatic shutoff valve of claim 4, wherein, The front part of the push rod (41) is provided with an external spline (411), the machine shell (43) is provided with an internal spline (431), and the external spline (411) of the push rod (41) is spline-connected with the internal spline (431) of the machine shell (43).

6. The automatic shutoff valve of claim 5, wherein, The water stop mechanism (4) further comprises a connecting assembly (45), and the driving motor (42) is electrically connected with the external controller through the connecting assembly (45).

7. The automatic shutoff valve of claim 6, wherein, The valve pipe (1) is provided with a mounting groove (14), and the water stop mechanism (4) is fixedly arranged on the mounting groove (14).

8. The automatic shutoff valve according to any one of claims 1 to 7, wherein The valve pipe (1) comprises a first pipe (15), a second pipe (16) and a third pipe (17) connected in sequence, the first pipe (15) is fixedly sleeved outside the second pipe (16), the valve core (2) is slidably arranged in the second pipe (16), the tail of the second pipe (16) is also fixedly sleeved on the head of the third pipe (17), and the valve core (2) is also elastically connected with the third pipe (17).

9. The automatic shutoff valve of claim 8, wherein, A sealing ring (18) is arranged between the second pipe (16) and the third pipe (17).

10. The automatic shutoff valve of claim 8, wherein, The water stop through groove (11) is arranged on the second pipe (16), and the first pipe (15) is also provided with a clearance groove (151) for avoiding the handle (3), and the clearance groove (151) is located above the water stop through groove (11).

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