Water flow switch

Abstract

The utility model relates to the technical field of switches, and discloses a water flow switch which comprises a connecting flange and a switch body, the right end of the switch body is fixedly provided with a water inlet end, the end portion of the water inlet end is fixedly provided with a first connecting end, and extending ends are arranged in the water inlet end and the first connecting end in a sliding mode. A movable groove is formed in the outer wall of the top of the extending end, a clamping block is slidably connected to the inner wall of the movable groove, a micro spring is connected to the inner wall of the bottom of the movable groove, and the top end of the micro spring is fixedly connected to the outer wall of the bottom of the clamping block. The extension end and the second connecting end are pushed to move into the water inlet end and the water outlet end, when the extension end moves to the second clamping notch, the clamping block can be pushed into the second clamping notch under the elastic force action of the micro spring, and the extension end can be clamped in the water inlet end and the water outlet end; the water flow pipeline connecting device is practical, and is suitable for being widely popularized and used.

Description

Technical Field

[0001] The utility model belongs to the technical field of switches, and in particular relates to a water flow switch. Background Art

[0002] The water flow switch is a sensor component used for water circulation control, water inlet and outlet control, water heating control, water pump switch control, solenoid valve on-off control or water outlet power-off and power-on control of electric water heaters, solar water heaters, air conditioners and other water systems. When a certain flow rate is reached, the water flow is converted into a switch-type electrical signal. It is mainly composed of a magnetic core, a reset spring, a forged copper or polycarbonate shell and a sensor. The magnetic core is made of neodymium iron boron permanent magnet material, and the sensor magnetic control switch is an imported medium-power component. The water inlet and outlet interfaces are both standard pipe threads.

[0003] There are three main installation methods for water flow switches: vertical installation, horizontal installation, and inverted installation. When installed vertically, it should be installed on a pipe section that flows from bottom to top; when installed at the upper end of a horizontal pipe (that is, horizontal installation), it should be ensured that the medium is full in the pipe to prevent the probe from only contacting the air but not the medium; when installed at the lower end of a horizontal pipe (that is, inverted installation), it should be ensured that there is no sediment at the bottom of the pipe to prevent the probe from being covered by the sediment and unable to fully contact the probe. However, no matter which installation method is used, the switch body needs to be stably connected to the pipe, and the diameters of the pipes are mostly different. The current water flow switch can only be used on water flow pipes with a single diameter, and the scope of application is relatively limited. In view of this, a water flow switch of the utility model is specially proposed to solve the above problems. Summary of the invention

[0004] In order to solve the technical problem that the above-mentioned water flow switch can only be applied to water flow pipes with a single diameter, the basic concept of the technical solution adopted by the utility model is:

[0005] A water flow switch comprises a connecting flange and a switch body, wherein a water inlet end is fixedly provided at the right end of the switch body, a first connecting end is fixedly provided at the end of the water inlet end, an extension end is slidably provided inside the water inlet end and the first connecting end, a movable groove is provided on the top outer wall of the extension end, a clamping block is slidably connected to the inner wall of the movable groove, a micro spring is connected to the bottom inner wall of the movable groove, the top of the micro spring is fixedly connected to the bottom outer wall of the clamping block, a first clamping slot and a second clamping slot of the same caliber are provided on the top of the water inlet end, and the clamping block is adapted to the first clamping slot and the second clamping slot.

[0006] As a preferred embodiment of the present invention, a second connecting end is fixedly provided at the end of the extending end.

[0007] As a preferred embodiment of the present invention, the outer walls of the first connecting end and the second connecting end are both provided with external threads.

[0008] As a preferred embodiment of the utility model, a connecting groove is provided on the inner wall of the opposite end of the water inlet end and the first connecting end, and a connecting block is fixedly connected to the outer wall of the extension end. The connecting block is slidably connected to the inner wall of the connecting groove, and the connecting groove is located on one side of the first clamping groove.

[0009] As a preferred implementation manner of the present utility model, the switch body is fixedly connected to the connecting flange.

[0010] As a preferred embodiment of the utility model, a water outlet is fixedly provided at the left end of the switch body, and the structure inside the water outlet is the same as the structure inside the water inlet.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model has a first connecting end fixedly provided at the end positions of the water inlet end and the water outlet end of the switch body, and the outer walls of the first connecting ends are provided with external threads, so that the switch body can be stably connected to a water flow pipe with a larger diameter. When the switch body needs to be firmly connected to the water flow pipe with a larger diameter, the clamping block is pressed to move downward so that the clamping block is disengaged from the first clamping groove, and then the extension end and the second connecting end are pushed to move toward the water inlet end and the water outlet end. When the end position of the extension end moves to the second clamping groove, the clamping block can be pushed into the second clamping groove under the elastic force of the micro spring, and the extension end can be clamped in the water inlet end and the water outlet end, and then the first connecting end can be screwed and firmly connected to the water flow pipe.

[0013] The utility model has an extension end slidably provided on the inner walls of the water inlet end and the water outlet end through a connecting groove and a connecting block, and the end position of the extension end is fixedly provided with a second connecting end, and the outer wall of the second connecting end is provided with an external thread, so that the switch body can be stably connected to a water flow pipe with a smaller diameter. When the switch body needs to be firmly connected to the water flow pipe with a smaller diameter, the clamping block is pressed to move downward so that the clamping block is disengaged from the second clamping groove, and then the extension end and the second connecting end are pulled to move toward the outside of the water inlet end and the water outlet end. When the end position of the extension end moves to the first clamping groove, the clamping block can be pushed into the first clamping groove under the elastic force of the micro spring to achieve the positioning of the extension end, and then the second connecting end can be screwed and firmly connected to the water flow pipe.

[0014] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the attached picture:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the water inlet end of the utility model;

[0018] Figure 3 It is a schematic cross-sectional view of the structure of the utility model when the extension end moves into the water inlet end;

[0019] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. connecting flange; 2. switch body; 3. water inlet end; 4. water outlet end; 5. first connecting end; 6. extension end; 7. second connecting end; 8. first clamping notch; 9. second clamping notch; 10. connecting groove; 11. connecting block; 12. movable groove; 13. clamping block; 14. micro spring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] like Figures 1 to 4 Shown

[0025] A water flow switch, comprising a connecting flange 1 and a switch body 2, wherein the switch body 2 is fixedly connected to the connecting flange 1, a water inlet end 3 is fixedly arranged at the right end of the switch body 2, a first connecting end 5 is fixedly arranged at the end of the water inlet end 3, an extension end 6 is slidably arranged inside the water inlet end 3 and the first connecting end 5, a movable groove 12 is provided on the top outer wall of the extension end 6, a clamping block 13 is slidably connected to the inner wall of the movable groove 12, a micro spring 14 is connected to the inner wall of the bottom of the movable groove 12, the top of the micro spring 14 is fixedly connected to the outer wall of the bottom of the clamping block 13, a first clamping notch 8 and a second clamping notch 9 of the same caliber are provided on the top of the water inlet end 3, the clamping block 13 is connected to the first clamping notch 8 and the second clamping notch 9 Correspondingly, a water outlet end 4 is fixedly provided at the left end of the switch body 2, and the structure inside the water outlet end 4 is the same as the structure inside the water inlet end 3. When the switch body 2 needs to be firmly connected to a water pipe with a larger diameter, the clamping block 13 is pressed to move downward so that the clamping block 13 disengages from the first clamping slot 8, and then the extension end 6 and the second connecting end 7 are pushed to move toward the water inlet end 3 and the water outlet end 4. When the end position of the extension end 6 moves to the second clamping slot 9, under the elastic force of the micro spring 14, the clamping block 13 can be pushed into the second clamping slot 9, and the extension end 6 can be clamped in the water inlet end 3 and the water outlet end 4, and then the first connecting end 5 can be screwed firmly on the water pipe.

[0026] In a specific embodiment, a second connecting end 7 is fixedly provided at the end of the extension end 6, and the outer walls of the first connecting end 5 and the second connecting end 7 are both provided with external threads. A connecting groove 10 is provided on the inner wall of the opposite end of the water inlet end 3 and the first connecting end 5, and a connecting block 11 is fixedly connected to the outer wall of the extension end 6. The connecting block 11 is slidably connected to the inner wall of the connecting groove 10. The connecting groove 10 is located on one side of the first clamping notch 8. When it is necessary to firmly connect the switch body 2 to a water flow pipe with a smaller diameter, the clamping block 13 is pressed downward to disengage the clamping block 13 from the second clamping notch 9, and then the extension end 6 and the second connecting end 7 are pulled to move toward the outside of the water inlet end 3 and the water outlet end 4. When the end position of the extension end 6 moves to the first clamping notch 8, under the elastic force of the micro spring 14, the clamping block 13 can be pushed into the first clamping notch 8 to achieve the positioning of the extension end 6, and then the second connecting end 7 can be screwed and firmly connected to the water flow pipe.

[0027] The implementation principle of a water flow switch of this embodiment is as follows:

[0028] When in use, the first connecting end 5 is fixedly provided at the end positions of the water inlet end 3 and the water outlet end 4 of the switch body 2, and the outer wall of the first connecting end 5 is provided with an external thread, so that the switch body 2 can be stably connected to a water flow pipe with a larger diameter. When the switch body 2 needs to be firmly connected to the water flow pipe with a larger diameter, the clamping block 13 is pressed to move downward, so that the clamping block 13 is disengaged from the first clamping slot 8, and then the extension end 6 and the second connecting end 7 are pushed to move toward the water inlet end 3 and the water outlet end 4. When the end position of the extension end 6 moves to the second clamping slot 9, the clamping block 13 can be pushed into the second clamping slot 9 under the elastic force of the micro spring 14, and the extension end 6 can be clamped in the water inlet end 3 and the water outlet end 4. Then, the first connecting end 5 can be screwed and firmly connected to the water flow pipe. The inner wall of the water outlet end 4 is slidably provided with an extension end 6 through a connecting groove 10 and a connecting block 11, and a second connecting end 7 is fixedly provided at the end position of the extension end 6, and the outer wall of the second connecting end 7 is provided with an external thread, so that the switch body 2 can be stably connected to a water pipe with a smaller diameter. When the switch body 2 needs to be firmly connected to a water pipe with a smaller diameter, the clamping block 13 is pressed to move downward so that the clamping block 13 is disengaged from the second clamping slot 9, and then the extension end 6 and the second connecting end 7 are pulled to move toward the outside of the water inlet end 3 and the water outlet end 4. When the end position of the extension end 6 moves to the first clamping slot 8, under the elastic force of the micro spring 14, the clamping block 13 can be pushed into the first clamping slot 8 to achieve the positioning of the extension end 6, and then the second connecting end 7 can be screwed and firmly connected to the water pipe.

Claims

1. A water flow switch, comprising a connecting flange (1) and a switch body (2), characterized in that: A water inlet end (3) is fixedly provided at the right end of the switch body (2), a first connecting end (5) is fixedly provided at the end of the water inlet end (3), an extension end (6) is slidably provided inside the water inlet end (3) and the first connecting end (5), a movable groove (12) is provided on the top outer wall of the extension end (6), a clamping block (13) is slidably connected to the inner wall of the movable groove (12), a micro spring (14) is connected to the bottom inner wall of the movable groove (12), the top end of the micro spring (14) is fixedly connected to the bottom outer wall of the clamping block (13), a first clamping notch (8) and a second clamping notch (9) of the same caliber are provided on the top of the water inlet end (3), and the clamping block (13) is adapted to the first clamping notch (8) and the second clamping notch (9).

2. A water flow switch according to claim 1, characterized in that: A second connecting end (7) is fixedly provided at the end of the extending end (6).

3. A water flow switch according to claim 2, characterized in that: The outer walls of the first connecting end (5) and the second connecting end (7) are both provided with external threads.

4. A water flow switch according to claim 1, characterized in that: A connecting groove (10) is provided on the inner wall of an end opposite to the water inlet end (3) and the first connecting end (5), and a connecting block (11) is fixedly connected to the outer wall of the extension end (6). The connecting block (11) is slidably connected to the inner wall of the connecting groove (10), and the connecting groove (10) is located on one side of the first clamping notch (8).

5. A water flow switch according to claim 1, characterized in that: The switch body (2) is fixedly connected to the connecting flange (1).

6. A water flow switch according to claim 1, characterized in that: A water outlet (4) is fixedly provided at the left end of the switch body (2), and the structure inside the water outlet (4) is the same as the structure inside the water inlet (3).

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