CN219066698U - a water flow switch - Google Patents

Abstract

The utility model relates to the technical field, in particular to a water flow switch, which includes a magnetic core, a moving cap and a baffle. The magnetic core is provided with a hollow cavity with an open end, and a swing rod is movably connected in the hollow cavity. , the bottom end of the swing rod is fixedly connected with a swing shaft, and the swing shaft is connected to the magnetic core for lateral rotation, a first magnet is arranged at one end of the swing rod close to the swing shaft, and the other end of the swing rod extends Out of the hollow cavity and fixedly connected with the blocking piece, a second magnet is arranged on one side of the hollow cavity opposite to the position of the first magnet, and the position between the first magnet and the second magnet is There is a return spring connected between them. The water flow switch of the utility model has the advantages of simple structure, good sealing performance and high sensitivity, which can realize the installation without direction requirement of the product, greatly reduce the installation difficulty and installation requirements of the product, and can reduce the potential safety hazard caused by installation errors.

Description

a water flow switch

technical field

The utility model relates to the technical field of water flow control switches, in particular to a water flow switch.

Background technique

The water flow switch is mainly installed online or plug-in in water, gas, oil and other medium pipelines to monitor the water flow in the water system. When the water flow rate is higher or lower than a certain set point, the alarm signal is triggered and sent to the unit, and the system can make corresponding instructions after obtaining the signal. The water flow switch is suitable for water circulation control, water inlet and outlet control, water heating control, water pump switch control, solenoid valve on and off control, water outlet power off, water outlet power on control and other processes in electric water heaters, solar water heaters, air conditioners and other water systems. A sensor device that converts water flow into an on-off electrical signal after a certain flow rate.

The flow rate of the water flow switch in the prior art is generally fixed and non-adjustable, and the flow rate is usually determined by the water inlet aperture and the strength of the spring, and the flow start point is large, which cannot be adjusted, and the use is limited!

Utility model content

In order to solve the technical defects raised in the above-mentioned background technology, the utility model provides a water flow switch, which has a simple structure, good sealing performance, and high sensitivity, which allows the product to be installed without direction requirements, and greatly reduces the installation difficulty and installation requirements of the product , and can reduce potential safety hazards caused by installation errors.

In order to achieve the above object, the utility model adopts the following technical solutions:

A water flow switch, comprising a magnetic core, a moving cap and a baffle, the magnetic core is provided with a hollow cavity with an open end, the hollow cavity is movably connected with a swing rod, and the bottom end of the swing rod is fixedly connected with a A pendulum shaft, the pendulum shaft is horizontally connected to the magnetic core, one end of the pendulum bar close to the pendulum shaft is provided with a first magnet, and the other end of the pendulum bar extends out of the hollow cavity and is connected to the stop The sheet is fixedly connected, and a second magnet is arranged at a position opposite to the first magnet on one side of the hollow cavity, and a return spring is connected between the first magnet and the second magnet.

Preferably, a sensor and a magnetic switch are respectively provided on both sides of the magnetic core close to the bottom, the sensor is connected to an external power supply through a wire, the magnetic switch is electrically connected to the sensor, and the magnetic switch is connected to the first A magnet and the second magnet are inductively connected.

Preferably, one end of the magnetic core is integrally formed with a boss, the diameter of the boss is larger than that of the magnetic core, and one end of the boss is covered with a sealing ring.

Preferably, one end of the magnetic core located at the boss is also provided with a through hole.

Preferably, the moving cap is sheathed on the outside of the magnetic core, and is located between the sensor and the boss, and the inner wall of the moving cap is provided with a threaded groove.

Preferably, the two ends of the baffle have a large width and the middle has a small width to form an I-shaped structure, and a plurality of mounting holes are opened on the baffle near the middle.

In summary, the beneficial effects of the utility model are:

1. The utility model is provided with a swing rod and fixedly connected to the stop piece on the swing rod. The swing rod is guided to swing with the swing shaft as the fulcrum. As long as the water flows through the swing rod, the swing rod overcomes the magnetic force and swings to the magnetic switch, so that the first magnet Mutual attraction with the second magnet under the action of magnetic attraction, thereby triggering the closure of the magnetic switch and turning on the power supply; the reset of the pendulum in a static state makes the first magnet and the second magnet separate under the elastic force of the return spring, thereby being separated from the magnetic switch disconnected, the power supply is disconnected; the first magnet and the two sides of the second magnet form a stable magnetic field, which is beneficial to improve the swing stability of the swing rod. The magnetic switch is closed after the impact of the water flow on the baffle, and the magnetic switch is separated from the water flow to prevent corrosion and electric shock, and the sensitivity of the magnetic switch can be adjusted by adjusting the insertion position; the length of the baffle can be changed, the longer the length, the closed the switch The lower the flow rate; the trigger method is simple and the sensitivity is high.

2. The utility model enables the product to be installed without direction requirements, which greatly reduces the difficulty and requirements of product installation, and can reduce potential safety hazards caused by installation errors.

Description of drawings

Fig. 1 is the structural representation of the utility model water flow switch;

Fig. 2 is a top view of the utility model water flow switch;

Fig. 3 is a cross-sectional view of the A-A surface of the utility model water flow switch in Fig. 2;

Fig. 4 is a structural schematic diagram of the baffle in the present invention.

Explanation of the reference signs in the figure:

1. Magnetic core; 11. Hollow cavity; 12. Sensor; 13. Magnetic switch; 14. Boss; 15. Through hole; 2. Moving cap; 21. Thread groove; 3. Block; 31. Mounting hole; 4. swing rod; 41. swing shaft; 5. first magnet; 6. second magnet; 7. return spring; 8. sealing ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

Those skilled in the art should understand that, in the disclosure of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention. The novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, so the above terms should not be construed as limiting the utility model.

A water flow switch, as shown in Figures 1 to 4, includes a magnetic core 1, a moving cap 2 and a stopper 3, the magnetic core 1 is provided with a hollow cavity 11 with an open end, and the hollow cavity 11 is movably connected There is a swing rod 4, the bottom end of the swing rod 4 is fixedly connected with a swing shaft 41, and the swing shaft 41 is connected to the magnetic core 1 by lateral rotation, and the end of the swing rod 4 near the swing shaft 41 is provided with a first magnet 5, and the swing rod 4. The other end extends out of the hollow cavity 11 and is fixedly connected to the blocking plate 3. A second magnet 6 is arranged on one side of the hollow cavity 11 opposite to the first magnet 5. Between the first magnet 5 and the second magnet 6 A back-moving spring 7 is connected between them.

Specifically, the water flow switch is installed on the water delivery pipeline, and water flows through the lower part of the swing rod 4. The direction of the water flow is that the water flow can push the swing rod 4 to swing to the direction of the magnetic switch 13. When water flows through the water flow switch, the water flow pushes the swing The rod 4 makes the swing rod 4 overcome the force of the magnet group on the first magnet 5, and swing to a vertical position, so that the magnetic switch 13 is closed, so as to turn on the power, so as to facilitate heating of the water flow. When the water stops flowing through the water flow switch, the fork 4 swings to reset and swings in a direction away from the magnetic switch 13, so that the magnetic switch 13 is disconnected, and the water flow is stopped to be heated.

In this embodiment, as shown in FIG. 3 , a sensor 12 and a magnetic switch 13 are respectively provided on both sides of the magnetic core 1 near the bottom, the sensor 12 is connected to an external power supply through a wire, the magnetic switch 13 is electrically connected to the sensor 12, and the magnetic switch 13 are inductively connected with the first magnet 5 and the second magnet 6 .

Specifically, the sensor 12 is used to sense the water flow in the water flow switch, and analyze the sensing data so as to control the water intake. Cooperating, the opening and closing state of the magnetic switch 13 is controlled by the magnetic attraction effect of the first magnet 5 and the second magnet 6 .

In this embodiment, one end of the magnetic core 1 is integrally formed with a boss 14 , the diameter of the boss 14 is larger than that of the magnetic core 1 , and one end of the boss 14 is covered with a sealing ring 8 . One end of the magnetic core 1 located at the boss 14 is also provided with a through hole 15 .

In this embodiment, the moving cap 2 is sleeved on the outside of the magnetic core 1 and located between the sensor 12 and the boss 14 , and the inner wall of the moving cap 2 is provided with a threaded groove 21 .

Specifically, the boss 14 at one end of the magnetic core 1 can clamp the moving cap 2 on the magnetic core 1, so that the magnetic core 1 is connected to the water pipeline through the moving cap 2, and between the boss 14 and the water pipeline A sealing ring 8 is prevented at the joint, and the sealing ring 8 adopts a rubber O-ring, which has a good sealing effect, effectively prevents scale and impurities from entering the water flow switch, and can also prevent the magnetic core 1 from leaking.

As shown in FIG. 4 , in this embodiment, the two ends of the block 3 are wide and the middle is small to form an I-shaped structure, and the block 3 is provided with a plurality of mounting holes 31 near the middle.

Specifically, the baffle 3 is fixedly installed on the swing rod 4 by screws, and under the action of its own I-shaped structure, the water flow rate of the delivery is increased, so that the sensitivity of the water flow switch is improved, and it is also beneficial to the swing rod 4 and the baffle. 3 Swing, the small swing can increase the sensitivity of triggering the magnetic switch 13, reduce the magnetic field strength of the first magnet 5 and the second magnet 6, and save the cost of magnet usage.

The working principle of this embodiment:

The water flow switch is installed on the water pipeline through the movable cap 2. When there is water flowing in, the swing rod 4 and the flap 3 start to swing after receiving the impact force of the water flow. The swing rod 4 swings with the swing shaft 41 as the fulcrum. Through the swing rod 4, the swing rod 4 overcomes the magnetic force and swings toward the magnetic switch 13, so that the first magnet 5 and the second magnet 6 are attracted to each other under the action of magnetic attraction, thereby triggering the closure of the magnetic switch 13 and turning on the power supply; when the water flow is disconnected At this time, the swing bar 4 resets in a static state, so that the first magnet 5 and the second magnet 6 are separated under the elastic force of the return spring 7, thereby disconnecting the magnetic switch 13 and cutting off the power supply; and the magnetic switch 13 can be inserted by adjusting Position to adjust the sensitivity; the length of the baffle 3 can be changed, the longer the length, the lower the closed flow of the switch.

The embodiments of this specific embodiment are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly, wherein the same components are represented by the same reference numerals. Therefore: all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims (6)

1. A water flow switch, comprising a magnetic core, a moving cap and a blocking plate, characterized in that, a hollow cavity with an open end is provided in the magnetic core, a swing rod is movably connected in the hollow cavity, and the swing rod The bottom end of the swing rod is fixedly connected with a swing shaft, and the swing shaft is connected to the magnetic core for lateral rotation, a first magnet is provided at one end of the swing rod close to the swing shaft, and the other end of the swing rod extends out of the hollow cavity Outside the body and fixedly connected to the blocking piece, a second magnet is arranged on one side of the hollow cavity opposite to the first magnet, and a return spring is connected between the first magnet and the second magnet . 2. The water flow switch according to claim 1, wherein a sensor and a magnetic switch are respectively provided on both sides of the magnetic core close to the bottom, the sensor is connected to an external power supply through a wire, and the magnetic switch is connected to the sensor are electrically connected, and the magnetic switches are inductively connected to the first magnet and the second magnet. 3. The water flow switch according to claim 2, wherein one end of the magnetic core is integrally formed with a boss, the diameter of the boss is larger than the diameter of the magnetic core, and one end of the boss is covered with With sealing ring. 4 . The water flow switch according to claim 3 , wherein a through hole is opened at one end of the magnetic core located at the boss. 5. The water flow switch according to claim 4, wherein the moving cap is sheathed on the outside of the magnetic core and is located between the sensor and the boss, and the inner wall of the moving cap is set Has a threaded groove. 6 . The water flow switch according to claim 1 , characterized in that, the two ends of the baffle are wide and the middle is small to form an I-shaped structure, and a plurality of mounting holes are opened on the baffle near the middle. 7 .

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