CN210866040U - Water flow switch - Google Patents

Abstract

The utility model relates to a water flow switch, including the switch main part, install the piston assembly who has magnet in the switch main part, the switch main part outside is equipped with the cavity, install the switch adjusting part that is used for adjusting the discharge size in the cavity, the switch adjusting part includes movable block and the PCB board that has the tongue tube of welding, the movable block is located PCB board upper surface and is connected with PCB board plug-in type, install the removal core that is used for adjusting the flow on the movable block, the end of intaking and the play water end of switch main part are connected with quick-operation joint respectively. The utility model discloses water flow switch has novel structure, easy to assemble, sensitivity is high, durable lastingly and advantages such as discharge is adjustable.

Description

Water flow switch

Technical Field

The utility model relates to the technical field of articles for daily use, specifically a water flow switch.

Background

The water flow switch is a sensor used for water circulation control, water inlet and outlet control, water heating control, water pump switch control, electromagnetic valve on-off control or water outlet power failure and water outlet power on control of an electric water heater, a solar water heater, an air conditioner and other water systems, and converts water flow into a switch type electric signal after a certain flow is reached.

The water flow switch is mainly installed in a water, gas, oil and other medium pipeline in an on-line or plug-in mode to monitor the water flow in a water system. When the water flow is higher or lower than a certain set point, an alarm signal is triggered and output and transmitted to the unit, and the system can make corresponding indication action after acquiring the signal. Avoid or reduce the host computer "dry combustion method".

When the water flow in the pipeline is larger than the set flow, the magnetic core generates displacement under the action of the water flow and drives the magnetic source to generate a magnetic control action so that the sensor outputs a conduction signal, the signal is input into an equipment control system, and the purpose of controlling the water flow is achieved after power amplification. When the water flow in the pipeline is smaller than the set flow, the magnetic core drives the magnetic source to return under the thrust action of the return spring, so that the sensor outputs a disconnection signal to stop the work of the system.

The water flow switch on the market is widely used, and the water flow switch has excellent performance, high sensitivity and high durability.

Conventional water flow switch appearance is thick on the market, and the material mostly uses the copper product to be the main, and the shape is fixed, and the appearance is great, uses the limitation great to the domestic equipment customer, unable installation, and the erection joint uses the screw thread more as leading, can't satisfy the use. The flow of a conventional water flow switch is generally fixed and non-adjustable, the flow is generally determined by a water inlet aperture and a spring force, the flow starting point is large and cannot be adjusted, and the use is limited!

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel structure, easy to assemble, sensitivity is high, durable and water flow switch with adjustable discharge.

In order to achieve the above purpose, the following technical solutions are provided.

A water flow switch comprises a switch main body, wherein a piston assembly with a magnet is installed in the switch main body, the magnet is made of a permanent magnet material, a cavity is arranged outside the switch main body, specifically, the cavity is of a square or oval or long round structure, a switch adjusting assembly used for adjusting the water flow is installed in the cavity, the switch adjusting assembly comprises a movable block and a PCB (printed circuit board) welded with a reed pipe, the movable block is located on the upper surface of the PCB and is connected with the PCB in a plug-in mode, a movable core used for adjusting the flow is installed on the movable block, when the switch is used, the movable core is rotated to drive the PCB to be finely adjusted, the purpose of adjusting the flow of the water flow switch is achieved, a water inlet end and a water outlet end of the switch main body are respectively connected with a quick connector, specifically, the quick connector is a jaw type quick connector, the, the installation is convenient for users. The utility model discloses flow switch theory of operation: when water flows into the switch main body, the magnet on the piston assembly is close to the reed switch in the cavity under the action of the water flow, the reed switch is switched on under the action of a magnetic field generated by the magnet, and when the water flow stops, the magnet is far away from the reed switch, and the water flow switch is switched off. The utility model discloses flow switch mainly by the switch main part, installs the piston assembly at the switch main part, installs the switch adjusting part in switch main part external cavity and installs the quick-operation joint at switch main part both ends and constitute, and its overall structure arranges rationally, and novel structure is small and exquisite, satisfies domestic needs. The structural design of the quick coupling at the two ends of the switch main body can adopt the size of the existing conventional two-branch quick coupling, the quick couplings at the two ends are provided with claws with different colors, the quick couplings are convenient to install by a user and have an anti-skidding effect, and meanwhile, the conventional quick couplings are adopted, so that the cost is effectively saved, the assembly process is reduced, and the utilization rate and the practicability of a product are improved. Magnet and switch adjustment subassembly go up the cooperation design of tongue tube among the piston assembly, magnet adopt the permanent magnetism material, and magnetism keeps difficult decay, ensures the sensitivity and the durability of product, makes the product durable lastingly, and the welding of tongue tube is in the PCB board, and its life-span is stable, the response is rapid. The setting of fly leaf and removal core in the switch adjusting part, at the in-process that rotates the removal core, can realize the fine setting to the PCB board, realize the regulation of flow.

Furthermore, a spring and a plug are further installed in the switch main body, the plug is located at the front end of the piston assembly, and the spring is located at the rear end of the piston assembly. The spring is positioned in the switch main body, has stable performance and can rebound back and forth for multiple times, and the durability of the product is further improved. The spring is arranged to interact with water flow resistance to push the piston to move back and forth, and then the piston drives the magnet to move back and forth, so that the reed switch is realized.

Further, the piston assembly consists of a piston, a magnet and a piston cover, wherein the magnet is arranged on the piston, and the piston cover is arranged on the piston to form the piston assembly.

Further, the switch adjusting assembly further comprises a pressing cover, the pressing cover is used for covering the movable block, the movable block is provided with an oblong moving groove used for installing the moving core, and the pressing cover is provided with a core hole for the moving core to penetrate through.

Further, the moving core is an eccentric moving core. The movable core is designed by adopting the design principle of an eccentric wheel, and in the process of rotating the movable core, the movable core drives the movable plate to move, and the movable plate further drives the PCB to be finely adjusted, so that the flow regulation effect is realized. The product break-make flow can be adjusted according to customer's demand, treats the adjustment and confirms the back, carries out glue again and fixes, prevents that inside tongue tube from moving about, and then improves product selectivity, and multifaceted nature has avoided needing the problem of designing many money water flow switch because of customer demand flow difference, has improved production efficiency and product yield, and then improves product market competitiveness.

Further, the outer surface of the moving core is provided with a tool groove. The arrangement of the tool groove is convenient for a user to use a tool to rotate the movable core.

Furthermore, the gland is provided with a mounting hole, and the switch adjusting assembly is arranged in a cavity on the switch main body at the mounting hole through a fastener.

Furthermore, a sealing structure is further installed in the switch main body, and the two sealing structures are respectively located between the water inlet end quick connector and the piston assembly and between the water outlet end quick connector and the piston assembly.

Further, the sealing structure is a double-layer sealing structure and comprises two sealing rings, and the two sealing rings are arranged in the switch main body side by side. The double-layer sealing structure is sealed by adopting the two sealing rings, and after the water pipe is inserted, a double-O structure seal is formed, so that the double-O structure seal can bear super-strong pressure and is water-tight, and the sealing property and the stability of a product are ensured.

Furthermore, a protruding part is arranged on the outer surface of the gland and is in an arrow shape. The setting of gland surface arrow shape bulge, the arrow direction is the rivers direction, and convenience of customers uses and installs.

The utility model discloses water flow switch, switch main part and upper cover and two quick-operation joint's cooperation design make the product appearance slick and sly, and the lines are complete, and the whole appearance of product is exquisite generous, promotes market share greatly.

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

first, novel structure, the utility model discloses flow switch mainly by the switch main part, installs the piston assembly at the switch main part internal, installs the switch adjusting part in switch main part external cavity and installs the quick-operation joint at switch main part both ends and constitute, and its overall structure arranges rationally, and novel structure is small and exquisite, satisfies domestic needs.

Second, easy to assemble, the structural design of switch main part both ends quick-operation joint can adopt current conventional bipartition pipe quick-operation joint size, and both ends quick-operation joint sets up the jack catch of different colours, and the person of facilitating the use installs, has anti-skidding effect moreover, adopts conventional quick-operation joint simultaneously, effectively saves the cost, reduces the equipment process, improves the availability and the practicality of product.

Third, sensitivity is high, durable lastingly, and magnet and the last reed switch of switch adjustment subassembly in the piston assembly's cooperation design, magnet adopt the permanent magnetism material, and magnetism keeps difficult decay, ensures the sensitivity and the durability of product, makes the product durable lastingly, and the reed switch welding is in the PCB board, and its stable in life-span, response are rapid.

And fourthly, the flow is adjustable, the movable plate and the movable core are arranged in the switch adjusting assembly, and the PCB can be finely adjusted in the process of rotating the movable core, so that the flow is adjusted.

Fifthly, production efficiency and yield are high, and product break-make flow can be adjusted according to customer's demand, waits to adjust and confirms the back, carries out glue again and fixes, prevents that inside tongue tube from moving about, and then improves the product selectivity, and multifaceted nature has avoided the problem that need design many money water flow switch because of customer demand flow is different, has improved production efficiency and product yield, and then improves product market competitiveness.

Drawings

FIG. 1 is a schematic overall sectional view of the water flow switch of the present invention;

FIG. 2 is a schematic view of a portion of the switching regulator assembly of FIG. 1;

FIG. 3 is an exploded view of the plunger assembly of FIG. 1;

fig. 4 is a schematic perspective view of a switch adjusting assembly in the flow switch of the present invention;

fig. 5 is a schematic perspective view of the switch main body of the water flow switch of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The water flow switch of the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

Referring to fig. 1, 2 and 5, a non-limiting embodiment of the water flow switch of the present invention includes a switch main body 10, a through inner cavity 11 is disposed inside the switch main body 10, a piston assembly 20 having a magnet 23 is installed inside the inner cavity 11 of the switch main body 10, and the magnet 23 is made of a permanent magnetic material. The external portion of the switch main body 10 is provided with an open external cavity 12, specifically, the external cavity 12 is of a square or oval or long round structure, a switch adjusting assembly 30 for adjusting the water flow is installed in the external cavity 12, the switch adjusting assembly 30 comprises a movable block 32 and a PCB 31 welded with a reed pipe 311, a lead notch 13 for placing a lead of the reed pipe 311 is arranged on the cavity wall of the external cavity 12 of the switch main body 10, the movable block 32 is located on the upper surface of the PCB 31 and connected with the PCB 31 in a plug-in manner, specifically, the upper surface of the PCB 31 is provided with a plurality of slots (not shown in the figure), a plurality of plug-in legs (not shown in the figure) matched with the plurality of slots are arranged at the bottom of the movable block 32, during installation, the plurality of plug-in legs on the movable block 32 are respectively inserted into the plurality of slots on the PCB 31 to form plug-in tight fit connection, make movable block 32 and PCB board 31 link together, install the removal core 34 that is used for adjusting the flow on the movable block 32, during the use, can drive movable block 32 through rotating removal core 34 and move about, movable block 32 and then drive rather than the PCB board 31 of being connected and finely tune, reach the purpose of flow switch flow control. The end of intaking and the play water end of switch main part 10 are connected with quick-operation joint 50 respectively, specifically, quick-operation joint 50 is jaw formula quick-operation joint 50, connects conveniently, fast, and convenient to use person installs.

Referring to fig. 1 and 3, the piston assembly 20 is composed of a piston 21, a magnet 23, and a piston cover 22, wherein the magnet 23 is mounted on the piston 21, and the piston cover 22 is covered on the piston 21 to form the piston assembly 20. The switch main body 10 is further provided with a spring 80 and a plug 70, the plug 70 is located at the front end of the piston assembly 20, and the spring 80 is located at the rear end of the piston assembly 20. The spring 80 is positioned inside the switch main body 10, has stable performance, and can rebound back and forth repeatedly, so that the durability of the product is further improved. The spring 80 interacts with the water flow resistance to push the piston to move back and forth, so that the piston drives the magnet 23 to move back and forth, and the reed pipe 311 is switched on and off.

Referring to fig. 1, 2, 4 and 5, the switch adjusting assembly 30 further includes a pressing cover 33, the pressing cover 33 is configured to cover the movable block 32, the movable block 32 is provided with an oblong moving slot 321 for installing the moving core 34, and the pressing cover 33 is provided with a core hole 331 for the moving core 34 to pass through. The gland 33 is provided with a mounting hole (not shown in the figure), the cavity wall of the outer cavity 12 of the switch main body 10 is provided with a hollow mounting column 14 matched with the mounting hole on the gland 33, and the switch adjusting component 30 is mounted on the hollow mounting column 14 on the switch main body 10 at the mounting hole through a fastener 40, so that the switch adjusting component is fastened in the outer cavity 12. A convex part 332 is arranged on the outer surface of the gland 33, and the convex part 332 is in an arrow shape. The arrangement of the arrow-shaped protrusion 332 on the outer surface of the pressing cover 33, the arrow direction is a water flow direction, which is convenient for users to use and install.

Referring to fig. 1 and 2, the moving core 34 is an eccentric moving core 34. The outer surface of the moving core 34 is provided with a tool groove 341. The tool groove 341 is provided to facilitate the user to rotate the moving core 34 using a tool. The movable core 34 is designed by adopting the design principle of an eccentric wheel, and in the process of rotating the movable core 34, the movable core 34 drives the movable plate to move, and the movable plate further drives the PCB 31 to perform fine adjustment, so that the flow regulation effect is realized. The product break-make flow can be adjusted according to customer's demand, treats the adjustment and confirms the back, carries out glue again and fixes, prevents that inside tongue tube 311 from moving, and then improves product selectivity, and multifaceted nature has avoided needing the problem of designing many money water flow switch because of customer demand flow difference, has improved production efficiency and product yield, and then improves product market competitiveness.

Referring to fig. 1, two sealing structures are further installed in the switch main body 10, and are respectively located between the water inlet end quick coupling 50 and the piston assembly 20 and between the water outlet end quick coupling 50 and the piston assembly 20. The sealing structure is a double-layer sealing structure and comprises two sealing rings 60, and the two sealing rings 60 are arranged in the switch main body 10 side by side. The double-layer sealing structure adopting the two sealing rings 60 for sealing forms double-O structure sealing after the water pipe is inserted, can bear super-strong pressure without water leakage, and ensures the sealing performance and stability of the product.

Referring to fig. 1 to 4, the utility model discloses water flow switch theory of operation: when water flows into the switch main body 10, the magnet 23 on the piston assembly 20 is close to the reed pipe 311 in the cavity under the action of the water flow, the reed pipe 311 receives the action of the magnetic field generated by the magnet 23, the water flow switch is switched on, and when the water flow stops, the magnet 23 is far away from the reed pipe 311, and the water flow switch is switched off. The utility model discloses flow switch mainly by switch main part 10, installs the piston assembly 20 in switch main part 10, installs the switch adjusting part 30 in switch main part 10 external cavity and installs the quick-operation joint 50 at switch main part 10 both ends and constitute, and its overall structure arranges rationally, and novel structure is small and exquisite, satisfies domestic needs. The structural design of the quick coupling 50 at the two ends of the switch main body 10 can adopt the size of the existing conventional two-branch pipe quick coupling 50, the quick coupling 50 at the two ends is provided with claws with different colors, the installation of an easy user is convenient, the anti-skidding effect is realized, the conventional quick coupling 50 is adopted simultaneously, the cost is effectively saved, the assembly process is reduced, and the availability and the practicability of products are improved. Magnet 23 and the switch adjustment subassembly 30 on the reed switch 311's cooperation design in the piston assembly 20, magnet 23 adopt permanent magnetism material, and the magnetism keeps difficult decay, ensures the sensitivity and the durability of product, makes the product durable lastingly, and the reed switch 311 welds in PCB board 31, and its life-span is stable, the response is rapid. The arrangement of the movable plate and the movable core 34 in the switch adjusting assembly 30 can realize the fine adjustment of the PCB 31 and the flow adjustment in the process of rotating the movable core 34. The utility model discloses water flow switch, switch main part 10 and upper cover and two quick-operation joint 50's cooperation design make the product appearance slick and sly, and the lines are complete, and the whole appearance of product is exquisite generous, promotes market share greatly.

The above embodiments are only specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, many variations and modifications are possible without departing from the inventive concept, and such obvious alternatives fall within the scope of the invention.

Claims (10)

1. A water flow switch comprises a switch main body and is characterized in that: install the piston assembly who has magnet in the switch main part, the switch main part outside is equipped with the cavity, install the on-off control assembly who is used for regulating discharge size in the cavity, the on-off control assembly includes movable block and the PCB board that has the tongue tube of welding, the movable block is located PCB board upper surface and is connected with PCB board plug-in type, install the removal core that is used for regulating discharge on the movable block, the end of intaking and the play water end of switch main part are connected with quick-operation joint respectively.

2. The water flow switch of claim 1, wherein the switch body further comprises a spring and a plug mounted therein, the plug being located at a front end of the piston assembly, and the spring being located at a rear end of the piston assembly.

3. The water flow switch of claim 2 wherein the piston assembly comprises a piston, a magnet and a piston cap, the magnet is mounted on the piston and the piston cap is mounted on the piston to form the piston assembly.

4. The water flow switch according to claim 1, wherein the switch adjusting assembly further comprises a pressing cover for covering the movable block, the movable block is provided with an oblong moving groove for installing the moving core, and the pressing cover is provided with a core hole for the moving core to pass through.

5. The water flow switch of claim 4 wherein said moving core is an eccentric moving core.

6. The water flow switch of claim 5 wherein said movable core has a tool recess in an outer surface thereof.

7. The water flow switch of claim 4 wherein the gland has a mounting hole and the switch adjustment assembly is mounted to the switch body at the mounting hole by a fastener.

8. The water flow switch according to any one of claims 4 to 7, wherein two sealing structures are further mounted in the switch body and are respectively located between the water inlet end quick coupling and the piston assembly and between the water outlet end quick coupling and the piston assembly.

9. The water flow switch of claim 8 wherein said seal is a double seal including two seals mounted side-by-side in the switch body.

10. The water flow switch of claim 9 wherein said gland has a protrusion on an outer surface thereof, said protrusion having an arrow shape.

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