Magnetic induction type water flow switch

Abstract

A magnetic induction type water flow switch comprises a seat body made of a plastic material, a magnetic induction component, a water guide metal pipe fitting, a hinged seat frame, a shaft body, a swing piece and a magnet, and the water guide metal pipe fitting comprises an external thread connector pipe and a fixing part; the hinge seat frame comprises a seat plate, a hinge seat and a limiting plate, the hinge seat and the limiting plate are arranged on two sides of the seat plate, the seat plate comprises an arc-shaped edge and a linear edge, and the hinge seat is provided with a shaft hole; the swing part comprises a shaft seat, a neck part and a magnet cavity, and the magnet is arranged in the magnet cavity; the seat body is connected with the fixing part, the shaft body is fixed with the shaft seat, two ends of the shaft body are rotatably matched with the shaft holes, and the limiting plate is matched with the neck part for limiting; the hinged seat frame is embedded into the water inlet end of the external thread connector pipe, the arc-shaped edge is attached to the inner wall of the external thread connector pipe, and the hinged seat is inserted into an inserting groove in the external thread connector pipe; and the magnetic induction component is arranged in the seat body and is matched with the magnet. The hinged seat frame, the shaft body, the swing piece and the magnet are integrated and are convenient to disassemble and assemble on the external thread connector pipe.

Description

Technical Field

[0001] The utility model relates to a water flow switch arranged on the water inlet pipeline of a water heater. Background Art

[0002] In the current prior art, Chinese Patent No. 202322056483.4, a water flow switch with high-temperature protection, includes a pipe body, a magnetic induction component, a magnetic block, a magnetic block seat, a water guide hinge seat, a fixed seat, and a butterfly-shaped bimetallic sheet. The pipe body includes an inlet external thread connection part and an outlet external thread connection part. The magnetic block is arranged in the magnetic block seat. The water guide hinge seat is arranged in the pipe body. The magnetic block seat is hinged to the water guide hinge seat and passes through the water guide hinge seat when rotating; the butterfly-shaped bimetallic sheet is arranged in the pipe body and cooperates with the ejector rod on the magnetic block seat. The fixed seat is fixed to the pipe body, and the magnetic induction component is fixed on the fixed seat and cooperates with the magnetic block. The problem is that the swing amplitude of the magnetic block seat is large, and there is a hidden danger that the water flow cannot drive the magnetic block seat to rotate. Content of the Utility Model

[0003] The purpose of the utility model is to provide a magnetic induction type water flow switch, which has the characteristics of convenient assembly and small influence of the swing part by water flow pressure.

[0004] The utility model is realized as follows: a magnetic induction type water flow switch, characterized in that it includes a seat body made of plastic material, a magnetic induction component, a water guide metal pipe fitting, a hinge seat frame, a shaft body, a swing part, and a magnet.

[0005] A fixing hole is arranged at the center of the seat body;

[0006] The water guide metal pipe fitting includes an external thread interface pipe and a fixing part;

[0007] The hinge seat frame includes a seat plate, hinge seats arranged on both sides of the seat plate, and a limiting plate. The seat plate includes an arc-shaped edge and a straight edge, and the hinge seat is provided with a shaft hole;

[0008] The swing part includes a shaft seat, a neck, and a magnet cavity, and the magnet is arranged in the magnet cavity;

[0009] The fixing part is fixed to the fixing hole, the shaft body is fixed to the shaft seat, and both ends of the shaft body are rotationally matched with the shaft holes. The limiting plate is matched with the neck to limit and stop; the hinge seat frame is embedded in the water inlet end of the external thread interface pipe, the arc-shaped edge is attached to the inner wall of the external thread interface pipe, and the hinge seat is inserted into the insertion groove inside the external thread interface pipe; the magnetic induction component is arranged in the seat body and cooperates with the magnet.

[0010] The magnetic induction type water flow switch is characterized in that the end surface where the outer end of the shaft hole on the hinge seat is located is an arc-shaped surface.

[0011] The magnetic induction type water flow switch is characterized in that the magnet is embedded in the magnet cavity.

[0012] The described magnetic induction type water flow switch is characterized in that a limit post is provided on the magnet cavity, and the limit post is in fit and stop with the inner wall of the external thread interface pipe.

[0013] The described magnetic induction type water flow switch is characterized in that radial grooves are provided on the circumferential surface of the fixing part, and the fixing part is embedded in the fixing hole.

[0014] The described magnetic induction type water flow switch is characterized in that the seat body is provided with a receiving cavity with one end open;

[0015] It further includes a magnetic induction shell, the magnetic induction component is arranged in the magnetic induction shell, and the magnetic induction shell is inserted into the receiving cavity.

[0016] The described magnetic induction type water flow switch is characterized in that a water outlet interface is provided at the end of the fixing part;

[0017] Or an external thread water outlet interface pipe is provided at the end of the fixing part;

[0018] Or a water outlet pipe is provided at the end of the fixing part, and a union nut is provided on the water outlet pipe.

[0019] The described magnetic induction type water flow switch is characterized in that a superior arc-shaped buckle is provided on the seat body, and a superior arc-shaped clamping groove is provided on the fixing part; the superior arc-shaped buckle and the superior arc-shaped clamping groove are engaged.

[0020] The described magnetic induction type water flow switch is characterized in that it further includes a connecting part and an external thread interface part arranged from bottom to top, and the connecting part is connected to the fixing part.

[0021] For the magnetic induction type water flow switch of the present utility model, the hinge seat frame, the shaft body, the swinging part and the magnet are taken as a whole, and it is convenient to disassemble and assemble on the external thread interface pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a sectional view of the present utility model.

[0023] Figure 2 It is Figure 1 View A-A of

[0024] Figure 3 It is one of the three-dimensional exploded views of the present utility model.

[0025] Figure 4 It is the second three-dimensional exploded view of the present utility model.

[0026] Figure 5 It is the three-dimensional view of the present utility model.

[0027] Figure 6 It is the three-dimensional view of the hinge seat frame of the present utility model.

[0028] Figure 7 It is a perspective view of the second embodiment of the present utility model.

[0029] Figure 8 It is an exploded perspective view of the second embodiment of the present utility model.

[0030] Figure 9 It is a perspective view of the third embodiment of the present utility model.

[0031] Figure 10 It is an exploded perspective view of the third embodiment of the present utility model.

[0032] Figure 11 It is a cross-sectional view of the fourth embodiment of the present utility model.

[0033] Figure 12 It is a perspective view of the fourth embodiment of the present utility model.

[0034] Figure 13 It is an exploded perspective view of the fourth embodiment of the present utility model. Detailed Embodiment

[0035] The following describes in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] Embodiment 1

[0038] As Figure 1 , Figure 2 , Figure 3 shown, a magnetic induction type water flow switch includes a seat body 1 made of plastic material, a magnetic induction component 2, a water guiding metal pipe fitting 3, a hinge seat frame 4, a shaft body 5, a swinging member 6, and a magnet 7.

[0039] A fixing hole 11 is provided at the center of the seat body 1; the magnetic induction component 2 is a reed switch or a Hall sensor.

[0040] The water guiding metal pipe fitting 3 includes an external thread interface pipe 31 and a fixing portion 32.

[0041] The articulated seat frame 4 includes a seat plate 41, articulated seats 42 provided on both sides of the seat plate 41, and a limit plate 43. The seat plate 41 includes an arc-shaped edge and a straight edge, and the limit plate 43 is provided on the straight-edge side of the seat plate 41; the articulated seat 42 is provided with a shaft hole;

[0042] The swing member 6 includes a shaft seat 61, a neck 62, and a magnet cavity 63, and the magnet 7 is arranged in the magnet cavity 63;

[0043] The fixing part 32 is fixed to the fixing hole 11, the shaft body 5 is fixed to the shaft seat 61, both ends of the shaft body 5 are rotatably matched with the shaft holes, and the limit plate 43 is matched with the neck 62 for limiting and stopping; the articulated seat frame 4 is embedded in the water inlet end of the external thread interface pipe 31, the arc-shaped edge is attached to the inner wall of the external thread interface pipe 31, and the articulated seat 42 is inserted into the insertion groove 311 inside the external thread interface pipe 31; the magnetic induction component 2 is arranged in the seat body 1 and cooperates with the magnet. With such a structure, the articulated seat frame and the external thread interface pipe are convenient to disassemble and assemble.

[0044] As a further improvement of the present utility model: the end face where the outer end of the shaft hole on the articulated seat 42 is located is an arc-shaped surface.

[0045] The magnet 7 is embedded in the magnet cavity 63.

[0046] As a further improvement of the present utility model: the magnet cavity 63 is provided with a limit post 631, and the limit post 631 cooperates with the inner wall of the external thread interface pipe 31 for stopping.

[0047] Figure 1 This is a view of the present utility model in the water flow state. The limit post 631 is attached to the internal thread water inlet interface pipe 31, the magnet 7 acts on the magnetic induction component 2, and the magnetic induction component 2 outputs a signal, indicating that water passes through the water guide metal pipe fitting 3; the acute angle between the swing member 6 and the horizontal plane is α;

[0048] Such as Figure 11 As shown, when water stops entering the water guide metal pipe fitting 3, under the action of the gravity of the magnet 7, the magnet cavity 63 and the neck 62, the swing member 6 rotates clockwise, the limit plate 43 supports the neck 62, the magnet 7 moves away from the magnetic induction component 2, and the magnetic induction component 2 has no signal output, indicating that there is no water flow; due to the limit plate 43 supporting the neck 62, the swing member 6 still has an acute angle with the horizontal plane; when water flows in again, the swing member 6 moves quickly; when the state of the swing member 6 changes, the swing angle is small; a small water flow pressure can still achieve a quick action.

[0049] As a further improvement of the present utility model: four radial grooves 321 are evenly distributed on the outer circumferential surface of the fixing part 32, and the fixing part 32 is embedded in the fixing hole 11. With such a structure, the water guide metal pipe fitting 3 can be prevented from rotating relative to the seat body 1 and moving axially.

[0050] As a further improvement of the utility model: a receiving cavity 12 with an open end is provided on the base body 1;

[0051] It further includes a magnetic induction shell 21. The magnetic induction component 2 is arranged inside the magnetic induction shell 21, and the magnetic induction shell 21 is inserted into the receiving cavity 12.

[0052] A water outlet interface 33 is provided at the end of the fixing part 32.

[0053] Embodiment 2

[0054] As Figure 7 、 Figure 8 shown, an externally threaded water outlet interface pipe 34 is provided at the end of the fixing part 32.

[0055] Embodiment 3

[0056] As Figure 9 、 Figure 10 shown, a water outlet pipe 35 is provided at the end of the fixing part 32, and a union nut 36 is provided on the water outlet pipe 35.

[0057] Embodiment 4

[0058] As Figure 11 shown, a superior arc-shaped buckle 12 is provided on the base body 1, and a superior arc-shaped slot 321 is provided on the fixing part 32; the superior arc-shaped buckle 12 and the superior arc-shaped slot 321 are engaged.

[0059] It further includes a connecting part 37 and an externally threaded interface part 38 arranged from bottom to top. The connecting part 37 is connected to the fixing part 32. The connecting part 37 is used for connecting and fixing with an electric water heater.

[0060] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A magnetic induction water flow switch, characterized in that: It includes a seat body made of plastic material, a magnetic sensing component, a water-conducting metal pipe, a hinged seat frame, a shaft body, a swinging part and a magnet. The water-conducting metal pipe fittings include an external threaded interface pipe and a fixing portion; The hinged seat frame includes a seat plate, hinged seats and limit plates arranged on both sides of the seat plate, the seat plate includes an arc edge and a straight edge, and the hinged seat is provided with an axis hole; The swinging member comprises a shaft seat, a neck and a magnet cavity, wherein the magnet is arranged in the magnet cavity; The seat body is connected to the fixed part, the shaft body is fixed to the shaft seat, the two ends of the shaft body are rotatably matched with the shaft hole, and the limit plate and the neck are matched to limit the stop position; the articulated seat frame is embedded in the water inlet end of the external threaded interface pipe, the arc edge is fitted with the inner wall of the external threaded interface pipe, and the articulated seat is inserted into the plug-in groove in the external threaded interface pipe; the magnetic induction component is arranged in the seat body and cooperates with the magnet.

2. A magnetic induction water flow switch according to claim 1, characterized in that: A fixing hole is provided at the center of the seat body; the fixing part is fixed to the fixing hole.

3. A magnetic induction water flow switch according to claim 1, characterized in that: The end surface where the outer end of the shaft hole on the hinge seat is located is an arc-shaped surface.

4. A magnetic induction water flow switch according to claim 1, characterized in that: The magnet is pre-buried in the magnet cavity.

5. The magnetic induction water flow switch according to claim 1, characterized in that: The magnet cavity is provided with a limiting column, which cooperates with the inner wall of the external thread interface tube to stop.

6. A magnetic induction water flow switch according to claim 2, characterized in that: A radial groove is arranged on the outer circumferential surface of the fixing portion, and the fixing portion is pre-buried in the fixing hole.

7. The magnetic induction water flow switch according to claim 1, characterized in that: The seat body is provided with a receiving cavity with one end open; It also includes a magnetic induction shell, the magnetic induction component is arranged in the magnetic induction shell, and the magnetic induction shell is inserted into the accommodating cavity.

8. A magnetic induction water flow switch according to claim 1, 2, 3, 4, 5, 6 or 7, characterized in that: The end of the fixing portion is provided with a water outlet interface; Or the end of the fixing portion is provided with an externally threaded water outlet interface pipe; Or a water outlet pipe is provided at the end of the fixing portion, and a swing nut is provided on the water outlet pipe.

9. A magnetic induction water flow switch according to claim 1, 3, 4, 5 or 7, characterized in that: The seat body is provided with a superior arc-shaped buckle, and the fixing part is provided with a superior arc-shaped slot; the superior arc-shaped buckle and the superior arc-shaped slot are embedded.

10. A magnetic induction water flow switch according to claim 9, characterized in that: It also includes a connecting portion and an external thread interface portion arranged from bottom to top, and the connecting portion is connected to the fixing portion.

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