Lead isolating ball valve and water leakage protector

Abstract

The lead isolating ball valve comprises a ball valve seat, a ball body with a channel, a ball valve rod and a ball valve end cover, an inert material lining or an inert material coating is arranged in the ball valve seat and the ball valve end cover, the ball body is arranged in the ball valve seat, pressing gaskets are arranged on the two sides of the ball body, and the ball body is pressed through the ball valve end cover. The ball body is made of inert materials and fixedly connected to the ball valve rod, and the ball valve rod controls rotation of the ball body to achieve opening and closing of the channel. The ball valve structure can effectively control the precipitation of heavy metal (lead) and ensure the safety of water use. The water leakage protector is more optimized in structure, convenient to install, use and maintain, capable of achieving water leakage monitoring protection, high in safety and reliability and long in service life.

Description

Technical Field

[0001] The utility model relates to a lead-isolating ball valve and a water leakage protector, belonging to the technical field of water purification equipment. Background Art

[0002] The pre-filter in the prior art includes: a machine head, a filter bottle connected to the machine head at the upper end, a drainage ball valve connected to the lower end of the filter bottle, a filter screen frame is arranged in the filter bottle, and a filter screen is sleeved on the outer wall of the filter screen frame. During use, water flows from the water inlet of the machine head into the gap between the filter bottle and the filter screen, flows into the center of the filter screen frame after being filtered by the filter screen, and then flows from the center of the filter screen frame to the water outlet of the machine head. The pre-filter has now penetrated into thousands of households and high-end hotels.

[0003] At present, the machine heads (ball valves) on the market are mainly made of copper, which is prone to heavy metal precipitation, even lead-free copper will have a small amount of precipitation; some ball valves are made of steel, which has poor forging performance compared to copper and is greatly affected by the appearance, or are connected by welding, which has a complicated process. In order to prevent heavy metal precipitation while ensuring the strength of the copper ball valve itself, it is considered to integrally inject environmentally friendly plastic parts inside the copper shell.

[0004] In addition, during the use of the pre-filter, the supporting pipe network often leaks due to accidents such as aging, leakage, rupture, or faucets not being closed or forgotten to be closed. On the one hand, it causes a waste of water resources and an increase in water charges. On the other hand, it can seriously harm buildings and cause house damage and property losses. Especially in densely populated residential areas, a leak may cause damage to multiple units in the vicinity and lower floors, causing inconvenience to residents' daily lives. In high-end hotels and other places, floods may occur due to burst water pipes, which may seriously damage the high-end facilities in the hotel. Such situations often occur in real life, so leakage monitoring and protection are very necessary. Early detection and early resolution avoid the expansion of hidden dangers. Leakage monitoring and protection equipment came into being. The utility model aims to provide a lead-isolating ball valve and leakage protector with a more optimized structure and easy matching installation occasions. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the pre-filter of the prior art and provide a lead-isolating ball valve and a water leakage protector. The pre-filter has a more optimized structure and is easy to install, use and maintain. The pre-filter integrates water leakage monitoring protection and has high safety and reliability.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A lead-insulated ball valve comprises a ball valve seat, a ball with a channel, a ball valve stem and a ball valve end cover. The ball valve seat and the ball valve end cover are provided with an inert material lining or an inert material coating. The ball is arranged in the ball valve seat. Compression gaskets are provided on both sides of the ball and are compressed by the ball valve end cover. The ball is made of inert material and is fixedly connected to the ball valve stem. The ball valve stem controls the rotation of the ball to realize the opening and closing of the channel.

[0008] Preferably, the ball valve seat and the ball valve end cover are integrally injection-molded with an inert material, and the inert material is selected from any one of plastic (including PP, PPR) and rubber.

[0009] Preferably, the ball valve seat and the ball valve end cover are provided with fixing protrusions or fixing grooves inside to ensure the tight fixation of the inert material during integral injection molding.

[0010] Preferably, the compression gasket is made of tetrafluoroethylene material, a gasket sealing ring is provided at the rear end of the compression gasket, and the sphere is made of any one of stainless steel, plastic and rubber materials.

[0011] Preferably, it also includes a ball valve motor and a controller, the ball valve motor is connected to the ball valve stem, and the ball valve motor is electrically connected to the controller.

[0012] Preferably, the ball valve seat is provided with a water leakage monitoring mechanism, and the water leakage monitoring protection mechanism includes a flow sensor and a flow detection unit;

[0013] The flow sensor detects the water flow through the flow monitoring unit and transmits the flow data to the controller. When the flow data exceeds the set value, the controller sends a command to the ball valve motor to close the ball valve; after the fault is eliminated, the controller receives the external command and sends a command to the ball valve motor to open the ball valve.

[0014] Preferably, the flow sensor includes a Hall flow sensor, an electromagnetic flow sensor, a vortex flow sensor, an ultrasonic flow sensor and an impeller flow sensor.

[0015] Preferably, the flow sensor adopts an ultrasonic flow sensor, and the flow detection unit includes a reflective element and a reflective element bracket, which are fixed to the ball valve seat. The angle between the reflective element and the water flow direction is 130-140° or 40-50°, and the angle between the reflecting surfaces of the reflective elements is 85-95°. The transmitting and receiving electrodes of the ultrasonic sensor are perpendicular to the water flow direction, or the reflective element and the reflective element bracket are omitted, and the transmitting and receiving electrodes form an acute angle or an obtuse angle with the water flow direction.

[0016] Preferably, the angle between the reflective element and the water flow direction is 135° or 45°, the angle between the reflective surfaces of the reflective elements is 90°, and the transmitting and receiving electrodes of the ultrasonic sensor form an acute angle of 30°-60° or 120°-150° with the water flow direction.

[0017] A water leakage protector adopts the lead-isolating ball valve mentioned above.

[0018] The beneficial effects of the utility model are:

[0019] The ball valve structure can effectively control the precipitation of heavy metals (lead) and ensure the safety of water use.

[0020] The water leakage protector has a more optimized structure and is easy to install, use and maintain, so it can realize water leakage monitoring and protection, has high safety and reliability, and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram (exploded diagram) of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the utility model.

[0026] In the figure: 1. ball valve end cover, 2. end cover sealing ring, 3. gasket sealing ring, 4. compression gasket, 5. ball, 6. ball valve seat, 7. ball valve stem, 8. ball valve stem sealing ring, 9. ball valve motor, 10. limit screw, 11. limit screw sealing gasket, 12. ultrasonic sensor sealing gasket, 13. ultrasonic sensor, 14. pressure plate, 15. pressure plate screw, 16. reflector bracket, 17. reflector, 18. reflector cover. DETAILED DESCRIPTION

[0027] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0028] like Figure 1-5 As shown, the lead-insulated ball valve comprises a ball valve seat 6, a ball 5 with a channel, a ball valve stem 7 and a ball valve end cap 1. The ball valve seat 6 and the ball valve end cap 1 are provided with an inert material lining or an inert material coating. The ball 5 is arranged in the ball valve seat 6. Compression gaskets 4 are provided on both sides of the ball 5 and are compressed by the ball valve end cap 1. The ball 5 is made of inert material and is fixedly connected to the ball valve stem 7. The ball valve stem 7 controls the rotation of the ball 5 to realize the opening and closing of the channel. In this embodiment, the ball valve end cap 1 is screwed to the ball valve seat 6, and an end cap sealing ring 2 is provided between the two.

[0029] In this embodiment, the ball valve seat 6 and the ball valve end cover 1 are integrally injection-molded with an inert material, and the inert material is selected from any one of plastic and rubber materials, and PP or PPR material is preferably selected.

[0030] Specifically, the ball valve seat 6 and the ball valve end cover 1 are provided with fixing protrusions or fixing grooves inside to ensure the tight fixation of the inert material during integral injection molding.

[0031] To further illustrate the present solution, the compression gasket 4 is made of tetrafluoroethylene material, a gasket sealing ring 3 is provided at the rear end of the compression gasket 4 to further improve the sealing effect, and the ball 5 is made of any one of stainless steel, plastic, and rubber materials, preferably stainless steel.

[0032] In this embodiment, a ball valve motor 9 and a controller are also included. The ball valve motor 9 is connected to the ball valve stem 7. The ball valve motor 9 is electrically connected to the controller. The ball valve seat 6 is provided with a water leakage monitoring mechanism. The water leakage monitoring protection mechanism includes a flow sensor and a flow detection unit.

[0033] The flow sensor detects the water flow through the flow monitoring unit and transmits the flow data to the controller. When the flow data exceeds the set value, the controller sends a command to the ball valve motor to close the ball valve; after the fault is eliminated, the controller receives the external command and sends a command to the ball valve motor 9 to open the ball valve.

[0034] In this embodiment, the flow sensor includes a Hall flow sensor, an electromagnetic flow sensor, a vortex flow sensor, an ultrasonic flow sensor and an impeller flow sensor.

[0035] As a preferred implementation scheme, the flow sensor adopts an ultrasonic flow sensor 13, and the flow detection unit includes a reflective element (reflective sheet 17), a reflective element bracket (reflective sheet bracket 16) and a transmitting sheet pressure cover 18, which are fixed to the ball valve seat 6. The reflective element has an angle of 130-140° with the water flow direction, or can also be 40-50°. The angle of the reflecting surface between the reflective elements is 85-95°. The transmitting and receiving electrodes of the ultrasonic sensor are perpendicular to the water flow direction, or are at an acute angle or an obtuse angle with the water flow direction.

[0036] Specifically for installation, the reflector 17 is inserted into the reflector bracket 16 and then installed into the ball valve seat 6, or the reflector 17 is directly inserted into the plastic part integrally injected inside the ball valve seat 6, and the end face is pressed by the reflector pressure cover 18. An ultrasonic sensor gasket 12 is sealed between the ultrasonic sensor 13 and the ball valve seat 6, and the end face is pressed by the pressure plate 14 and fastened by the pressure plate screw 15. A limit screw 10 can be configured to fix the reflector bracket 16. The reflector bracket 16 or the reflector pressure cover 18 and the integrally embedded plastic can limit the installation angle direction of the reflector 17.

[0037] In a more preferred implementation, the angle between the reflective element and the water flow direction is 135° or 45°, the angle between the reflective surfaces of the reflective elements is 90°, and the transmitting and receiving electrodes of the ultrasonic sensor are 30-60° or 120-150° to the water flow direction.

[0038] A water leakage protector adopts the lead-isolating ball valve mentioned above.

[0039] The beneficial effects of the utility model are:

[0040] The ball valve structure can effectively control the precipitation of heavy metals (lead) and ensure the safety of water use.

[0041] The water leakage protector has a more optimized structure and is easy to install, use and maintain, so it can realize water leakage monitoring and protection, has high safety and reliability, and a long service life.

[0042] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A lead-insulated ball valve, comprising a ball valve seat, a ball with a channel, a ball valve stem and a ball valve end cover, characterized in that: The ball valve seat and the ball valve end cover are provided with an inert material lining or an inert material coating. The ball is arranged in the ball valve seat. Compression gaskets are provided on both sides of the ball and compressed by the ball valve end cover. The ball is made of inert material and is fixedly connected to the ball valve stem. The ball valve stem controls the rotation of the ball to realize the opening and closing of the channel.

2. The lead-isolating ball valve according to claim 1, characterized in that: The ball valve seat and the ball valve end cover are integrally injection-molded with an inert material, and the inert material is selected from any one of plastic and rubber materials.

3. The lead-isolating ball valve according to claim 2, characterized in that: The ball valve seat and the ball valve end cover are provided with fixing protrusions or fixing grooves inside to ensure the tight fixation of the inert material during integral injection molding.

4. The lead-isolating ball valve according to claim 1, characterized in that: The compression gasket is made of tetrafluoroethylene material, a gasket sealing ring is arranged at the rear end of the compression gasket, and the sphere is made of any one of stainless steel, plastic and rubber materials.

5. The lead-isolating ball valve according to claim 1, 2, 3 or 4, characterized in that: It also includes a ball valve motor and a controller. The ball valve motor is connected to the ball valve stem, and the ball valve motor is electrically connected to the controller.

6. The lead-isolating ball valve according to claim 5, characterized in that: The ball valve seat is provided with a water leakage monitoring mechanism, which includes a flow sensor and a flow detection unit; The flow sensor detects the water flow through the flow monitoring unit and transmits the flow data to the controller. When the flow data exceeds the set value, the controller sends a command to the ball valve motor to close the ball valve; after the fault is eliminated, the controller receives the external command and sends a command to the ball valve motor to open the ball valve.

7. The lead-isolating ball valve according to claim 6, characterized in that: The flow sensors include Hall flow sensors, electromagnetic flow sensors, vortex flow sensors, ultrasonic flow sensors and impeller flow sensors.

8. The lead-isolating ball valve according to claim 7, characterized in that: The flow sensor adopts an ultrasonic flow sensor. The flow detection unit includes a reflective element and a reflective element bracket, which are fixed to the ball valve seat. The angle between the reflective element and the water flow direction is 130-140° or 40-50°, and the angle between the reflection surfaces of the reflective elements is 85-95°. The transmitting and receiving electrodes of the ultrasonic sensor are perpendicular to the water flow direction, or the reflective element and the reflective element bracket are omitted, and the transmitting and receiving electrodes form an acute angle or an obtuse angle with the water flow direction.

9. The lead-isolating ball valve according to claim 8, characterized in that: The angle between the reflective element and the water flow direction is 135° or 45°, the angle between the reflective surfaces of the reflective elements is 90°, the transmitting and receiving electrodes of the ultrasonic sensor are perpendicular to the water flow direction, or the reflective element and the reflective element bracket are omitted, and the transmitting and receiving electrodes are 30-60° or 120°-150° to the water flow direction.

10. A water leakage protector, characterized in that: The lead-isolating ball valve according to any one of claims 1 to 9 is adopted.

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