Water flow switch

Abstract

The embodiment of the utility model provides a water flow switch structure, and belongs to the technical field of water flow switches. The water flow switch comprises a water inlet connector; a water inlet valve assembly; one end of the water flow switch body is connected with the water inlet connector, the other end of the water flow switch body is connected with the water inlet valve assembly, a floater limiting structure is arranged in the water flow switch body, and a reed switch installation position is arranged outside the water flow switch body. The floater limiting structure is opposite to the reed pipe mounting position in position; the floater is arranged in the floater limiting structure and can move up and down in the floater limiting structure; the reed switch is arranged at the reed switch mounting position; when the floater moves to a specific position on the floater limiting structure under the action of water flow, the reed pipe is attracted under the action of a magnetic field of the floater. And the position of the reed switch is fixed, so that the stability of the water flow switch is maintained.

Description

Technical Field

[0001] This application relates to the technical field of water flow switches, and particularly to a water flow switch structure. Background Art

[0002] A water flow switch, also known as a flow switch or flow sensor, is an important sensor device widely used in the automatic control systems of various water systems, air conditioners, water heaters and other equipment. The water flow switch can detect whether the liquid in the pipeline is flowing and convert the flow state into an electrical signal output to achieve the automatic control of the equipment system. When the water flow rate reaches the set threshold, the water flow switch can send a signal to control the start or stop of related equipment and prevent risks such as dry burning of the equipment.

[0003] Traditional water flow switches are of the frequency type and the switch type. The frequency type senses the frequency signal through a Hall element, and then the frequency signal is converted into an electrical signal and fed back to the controller to control the start and stop of the machine. The switch type senses the magnitude of the magnetic flux of the magnet through a reed switch, and the change of the magnetic flux controls the on and off of the reed switch to control the start and stop of the machine. In the existing switch-type water flow switch, the reed switch is fixed in position by potting. Since the liquid resin has fluidity, the positions where the reed switches are fixed are uneven, which has a certain impact on the stability of the water flow switch. Summary of the Invention

[0004] The main purpose of this application is to propose a water flow switch structure, aiming to maintain the stability of the water flow switch.

[0005] To achieve the above object, this application provides a water flow switch structure, including:

[0006] An inlet joint;

[0007] An inlet valve assembly;

[0008] A water flow switch body, one end of the water flow switch body is connected to the inlet joint, the other end of the water flow switch body is connected to the inlet valve assembly, a float limiting structure is arranged inside the water flow switch body, a reed switch installation position is arranged outside the water flow switch body, and the positions of the float limiting structure and the reed switch installation position are opposite;

[0009] A float, the float is arranged in the float limiting structure and can move up and down in the float limiting structure;

[0010] A reed switch, the reed switch is arranged in the reed switch installation position;

[0011] When the float moves to a specific position in the float limiting structure under the action of water flow, the reed switch is attracted and closed under the magnetic field of the float.

[0012] By placing the structure of the reed switch externally on the water flow switch body and setting it in an installation position, the change in the magnetic flux sensed by the reed switch is made consistent, ensuring the fixed installation accuracy of the reed switch, avoiding the problems brought about by the prior art of fixing the position of the reed switch by potting, and maintaining the stability of the water flow switch.

[0013] In a possible implementation manner, the reed switch is fixed to the reed switch installation position by screws. By placing the structure of the reed switch externally on the water flow switch body and fixing it with screws in an installation position, the change in the magnetic flux sensed by the reed switch is made consistent, improving the stability of the feedback signal, further reducing the failure rate of the machine, ensuring the fixed installation accuracy of the reed switch, avoiding the problems brought about by the prior art of fixing the position of the reed switch by potting, and maintaining the stability of the water flow switch.

[0014] In a possible implementation manner, a magnetic sensitive element is provided in the float limiting structure, and a permanent magnetic object is installed inside the float.

[0015] In a possible implementation manner, when the float moves to a specific position in the float limiting structure under the action of water flow, the magnetic sensitive element in the float limiting structure can sense the magnetic field generated by the permanent magnetic object installed inside the float to limit the position of the float, and finally limit it at the top of the water flow switch body. The reed switch senses the magnitude of the magnetic flux of the permanent magnetic object installed inside the float to realize the on-off of the reed switch.

[0016] In a possible implementation manner, the water inlet joint is fixed to one end of the water flow switch body by a nut. The nut tightens the connection between the water inlet joint and the water flow switch body. By rotating the nut, it can be tightly combined with the threaded part of the water inlet joint to ensure the firmness and tightness of the connection.

[0017] In a possible implementation manner, a make-up water valve is connected between one end of the water inlet valve assembly and the water flow switch body.

[0018] In a possible implementation manner, one end of the make-up water valve is connected with a make-up water rod assembly.

[0019] In a possible implementation manner, a circlip is provided at the connection between one end of the water flow switch body and the make-up water valve. The circlip prevents the axial movement between the water flow switch body and the make-up water valve, enhancing the stability of the water flow switch structure. Especially during high-speed operation or when subjected to external force impact, the circlip can effectively prevent parts from loosening or falling off, thus protecting the normal operation of the water flow switch.

[0020] In a possible implementation, a circlip is provided at the connection between one end of the water flow switch body and the water inlet joint. The circlip prevents axial movement between the water flow switch body and the water inlet joint, enhancing the stability of the water flow switch structure. Especially when operating at high speed or being impacted by external forces, the circlip can effectively prevent parts from loosening or falling off, thus protecting the normal operation of the water flow switch.

[0021] In a possible implementation, an embodiment of the present invention also provides a wall-mounted boiler, including a water flow switch as in the above embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of a water flow switch provided by an embodiment of the present invention;

[0023] Reference numerals: water inlet valve assembly 100.

[0024] Figure 2 It is a schematic cross-sectional structural diagram of a water flow switch provided by an embodiment of the present invention;

[0025] Reference numerals: reed switch installation position 110, float limiting structure 120.

[0026] Figure 3 is Figure 1 It is an exploded structural diagram of the water flow switch shown in ;

[0027] Reference numerals: water flow switch body 200, reed switch 300, screw 400, float 500, water inlet joint 600, nut 700, make-up water valve 800, circlip 900, make-up water rod assembly 1000. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that although functional module division is performed in the device schematic diagram and the logical sequence is shown in the flowchart, in some cases, the steps shown or described may be executed in a different module division in the device or a different order in the flowchart. Terms such as "first" and "second" in the specification, claims and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein are for the purpose of describing embodiments of this application only and are not intended to limit this application.

[0031] This application provides a flexible ion tactile sensor, as Figure 1 , Figure 2 and Figure 3 shown, including a water inlet valve assembly 100, a reed switch mounting position 110, a float limiting structure 120, a water flow switch body 200, a reed switch 300, a screw 400, a float 500, a water inlet joint 600, a nut 700, a water replenishing valve 800, a snap ring 900, and a water replenishing rod assembly 1000.

[0032] In a first aspect, an embodiment of the present invention provides a water flow switch structure.

[0033] As Figure 1 , Figure 2 and Figure 3 shown, a water flow switch structure includes:

[0034] A water inlet joint 600;

[0035] A water inlet valve assembly 100;

[0036] A water flow switch body 200, one end of the water flow switch body 200 is connected to the water inlet joint 600, the other end of the water flow switch body 200 is connected to the water inlet valve assembly 100, a float limiting structure 120 is provided inside the water flow switch body 200, a reed switch mounting position 110 is provided outside the water flow switch body 200, and the positions of the float limiting structure 120 and the reed switch mounting position 110 are opposite;

[0037] A float 500, the float 500 is arranged in the float limiting structure 120 and can move up and down in the float limiting structure 120;

[0038] A reed switch 300, the reed switch 300 is arranged in the reed switch mounting position 110;

[0039] When the float 500 moves to a specific position in the float limiting structure 120 under the action of water flow, the reed switch 300 is attracted and closed under the magnetic field action of the float 500.

[0040] By externally arranging the structure of the reed switch on the water flow switch body and setting it in a mounting position, the change of the magnetic flux sensed by the reed switch is consistent, ensuring the fixed installation accuracy of the reed switch, avoiding the problems brought by fixing the position of the reed switch by potting in the prior art, and maintaining the stability of the water flow switch.

[0041] Among them, as Figure 2 and Figure 3 shown, the reed switch 300 is fixed to the reed switch mounting position 110 by screws 400. The structure of the reed switch 300 is externally placed on the water flow switch main body 200 and fixed to a mounting position by screws 400, so that the change of the magnetic flux sensed by the reed switch 300 is consistent, improving the stability of the feedback signal, further reducing the failure rate of the machine, ensuring the fixed installation accuracy of the reed switch, avoiding the problems brought by fixing the position of the reed switch by potting in the prior art, and maintaining the stability of the water flow switch.

[0042] In addition, as Figure 2 shown, a magnetic sensitive element is provided in the float limiting structure 120, and a permanent magnetic object is installed inside the float 500.

[0043] In some embodiments of the present invention, as Figure 2 and Figure 3 shown, when the float 500 moves to a specific position in the float limiting structure 120 under the action of water flow, the magnetic sensitive element in the float limiting structure 120 can sense the magnetic field generated by the permanent magnetic object installed inside the float 500 to limit the position of the float 500, and finally limit it at the top of the water flow switch main body 200. The reed switch 300 senses the magnitude of the magnetic flux of the permanent magnetic object installed inside the float 500 to realize the on-off of the reed switch 300, thereby controlling the start or stop of the machine.

[0044] As Figure 3 shown, in some embodiments of the present invention, the water inlet joint 600 is fixed to one end of the water flow switch main body 200 by a nut 700. The nut 700 tightens the connection between the water inlet joint 600 and the water flow switch main body 200. By rotating the nut 700, it can be tightly combined with the threaded part of the water inlet joint 600 to ensure the firmness and sealing of the connection.

[0045] In some embodiments of the present invention, as Figure 2 and Figure 3 shown, a water replenishing valve 800 is connected between the water inlet valve assembly 100 and the water flow switch main body 200. The water replenishing valve 800 has the functions of automatic water replenishment and preventing water backflow, which helps to protect the water flow switch from damage caused by problems such as insufficient water pressure or water backflow.

[0046] As Figure 3 shown, in some embodiments, one end of the water replenishing valve 800 is connected with a water replenishing rod assembly 1000.

[0047] In some embodiments, as Figure 3As shown, a retaining spring 900 is provided at the connection between one end of the water flow switch body 200 and the water supply valve 800. The retaining spring 900 prevents the water flow switch body 200 and the water supply valve 800 from axial movement, thereby enhancing the stability of the water flow switch structure. Especially when running at high speed or subjected to external force, the retaining spring 900 can effectively prevent parts from loosening or falling off, thereby protecting the normal operation of the water flow switch.

[0048] In some embodiments of the present invention, Figure 3 As shown, a retaining spring is provided at the connection between one end of the water flow switch body 200 and the water inlet joint 600. The retaining spring 900 prevents the water flow switch body 200 and the water inlet joint 600 from axial movement, thereby enhancing the stability of the water flow switch structure. Especially when running at high speed or subjected to external force impact, the retaining spring 900 can effectively prevent parts from loosening or falling off, thereby protecting the normal operation of the water flow switch.

[0049] In a second aspect, an embodiment of the present invention provides a wall-mounted fireplace comprising the water flow switch according to the embodiment of the first aspect.

[0050] The wall-mounted fireplace of the embodiment of the present invention includes the water flow switch of the embodiment of the first aspect, including:

[0051] Water inlet connector 600;

[0052] Water inlet valve assembly 100;

[0053] A water flow switch body 200, one end of which is connected to the water inlet connector 600, and the other end of which is connected to the water inlet valve assembly 100. A float limiting structure 120 is provided inside the water flow switch body 200, and a reed switch mounting position 110 is provided outside the water flow switch body 200. The float limiting structure 120 and the reed switch mounting position 110 are opposite each other.

[0054] a float 500 , the float 500 being disposed in the float defining structure 120 and being capable of moving up and down in the float defining structure 120 ;

[0055] A reed switch 300, wherein the reed switch 300 is disposed at the reed switch mounting position 110;

[0056] When the float 500 moves to a specific position in the float limiting structure 120 under the action of water flow, the reed switch 300 is attracted under the magnetic field of the float 500. The reed switch 300 is fixed to the reed switch mounting position 110 with screws 400. By externally placing the structure of the reed switch 300 on the water flow switch body 200 and fixing it to a mounting position with screws 400, the change of the magnetic flux sensed by the reed switch 300 is made consistent, improving the stability of the feedback signal, further reducing the failure rate of the machine, ensuring the fixed installation accuracy of the reed switch, avoiding the problems brought by fixing the position of the reed switch by potting in the prior art, and maintaining the stability of the water flow switch.

[0057] The embodiments described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation to the technical solutions provided by the embodiments of the present application. Those skilled in the art know that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0058] Those skilled in the art can understand that the technical solutions shown in the figures do not constitute a limitation to the embodiments of the present application, and may include more or fewer steps than shown in the figures, or combine certain steps, or different steps.

[0059] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0060] In several embodiments provided by the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection of devices or units can be in electrical, mechanical or other forms.

[0061] The units described as separate components above may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0062] In addition, in each embodiment of the present application, each functional unit can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0063] The preferred embodiments of the embodiments of the present application have been described above with reference to the accompanying drawings. However, this does not limit the scope of the rights of the embodiments of the present application. Any modifications, equivalent replacements, and improvements made by those skilled in the art without departing from the scope and essence of the embodiments of the present application shall fall within the scope of the rights of the embodiments of the present application.

Claims

1. A water flow switch, characterized in that, The water flow switch includes: An inlet connector; An inlet valve assembly; A water flow switch body, one end of the water flow switch body is connected to the inlet connector, the other end of the water flow switch body is connected to the inlet valve assembly, a float limiting structure is arranged inside the water flow switch body, a reed switch mounting position is arranged outside the water flow switch body, and the positions of the float limiting structure and the reed switch mounting position are opposite; A float, the float is arranged in the float limiting structure and can move up and down in the float limiting structure; A reed switch, the reed switch is arranged in the reed switch mounting position; When the float moves to a specific position in the float limiting structure under the action of water flow, the reed switch is attracted and closed under the magnetic field of the float.

2. The water flow switch according to claim 1, wherein, The reed switch is fixed in the reed switch mounting position by screws.

3. The water flow switch according to claim 1, wherein, A magnetic sensitive element is arranged in the float limiting structure, and a permanent magnetic object is installed inside the float.

4. The water flow switch according to claim 3, characterized in that When the float moves to a specific position in the float limiting structure under the action of water flow, the magnetic sensitive element in the float limiting structure can sense the magnetic field generated by the permanent magnetic object installed inside the float to limit the position of the float.

5. The water flow switch according to claim 1, wherein The inlet connector is fixed to one end of the water flow switch body by a nut.

6. The water flow switch according to claim 1, wherein, There is a make-up water valve between the inlet valve assembly and the water flow switch body.

7. The water flow switch according to claim 6, characterized in that, One end of the make-up water valve is connected with a make-up water rod assembly.

8. The water flow switch according to claim 6, characterized in that, A circlip is arranged at the connection between one end of the water flow switch body and the make-up water valve.

9. The water flow switch according to claim 1, wherein A circlip is arranged at the connection between one end of the water flow switch body and the inlet connector.

10. A wall-mounted boiler, characterized in that, The water flow switch as described in any one of claims 1-9 is installed on the water inlet pipe of the wall-mounted boiler.

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