Flow sensor with water flow on-off function

Abstract

The utility model discloses a flow sensor with a water flow on-off function, and relates to the technical field of flow sensors. According to the technical scheme, the flow sensor is characterized by comprising a hollow sensor body, a flow detection assembly is arranged in the sensor body, a vertically-arranged rotating rod is rotationally connected into the sensor body, a connecting edge is arranged on the sensor body along the inner wall of the sensor body, and a flow guide pipe is arranged on the side, facing the rotating rod, of the connecting edge; an arc-shaped groove attached to the surface of one side of the rotating rod is formed in the end of the flow guide pipe, a horizontal through groove penetrating through the two sides of the rotating rod is formed in the rotating rod, and the device further comprises a driving assembly used for driving the rotating rod to control the through groove to be communicated with or disconnected from the flow guide pipe. The utility model aims to provide the flow sensor with the water flow on-off function.

Description

TECHNICAL FIELD

[0001] The utility model relates to flow sensor technical field more specifically, it relates to a kind of flow sensor with water flow on-off function. BACKGROUND

[0002] At present, water flow sensor widely used in gas water heater and other products, it is mainly by detecting water flow rate to detect water flow size, existing water flow sensor does not have the function of actively controlling water route on-off, when needing to close water flow, must rely on manual operation inlet valve or outlet valve.

[0003] Because the valve needs to be installed to control water route on-off, thereby increase the complexity of pipeline system, and improve installation and maintenance cost.

[0004] Therefore, a new technical scheme is needed to solve the above technical problems. INVENTION CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims at providing a kind of flow sensor with water flow on-off function.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a kind of flow sensor with water flow on-off function, including the hollow sensor body, the flow detection assembly is arranged in the sensor body, the rotating rod vertically arranged is rotatably connected in the sensor body, the connecting flange is arranged along the inner wall of the sensor body, the connecting flange is provided with the flow guide pipe on the side towards rotating rod, the end of the flow guide pipe is provided with the arc-shaped groove that is attached to the surface of the side of rotating rod, the rotating rod is provided with the horizontal and through the two sides of its both sides the through slot, further including the drive assembly for driving rotating rod, to control the through slot and the flow guide pipe are connected or disconnected.

[0007] The utility model is further provided: the top of the sensor body is connected with the connecting column, the connecting column is provided with annular groove along its circumferential inner wall, the annular groove is rotatably connected with the rotating disc, the rotating rod is fixedly connected to the bottom of rotating disc, and the drive assembly is used to drive rotating disc and rotating rod.

[0008] The utility model is further provided: the arc-shaped groove with the cross section being one-fourth circular arc is opened in the connecting column, the bottom of the arc-shaped groove is connected with the annular groove, the upper surface of the rotating disc is integrally formed with the driving plate along its radial direction, the driving plate is rotatably connected in the arc-shaped groove, and the arc-shaped groove is divided into two closed spaces, the drive assembly includes the flow guide pipe arranged at the top of connecting column, one end of the flow guide pipe is connected to the inlet end of sensor body, and the inner wall of one end of the arc-shaped groove is provided with the first flow guide groove communicated with the flow guide pipe.

[0009] The water flow of the sensor body inlet end enters the arc-shaped groove through the flow guide pipe and the first flow guide groove, pushes the driving plate, drives the rotating disc and the rotating rod to rotate, and finally makes the driving plate abut against the inner wall of the other end of the arc-shaped groove, and the through groove on the rotating rod is perpendicular to the flow guide pipe, thereby playing a blocking role on the flow guide pipe to close the water flow.

[0010] The utility model further sets up: the arc-shaped groove is located first flow guide groove's other end inner wall opens second flow guide groove, the surface of connecting column is provided with air inlet joint and is connected with second flow guide groove, air inlet joint is connected with air inlet pressurizing device;

[0011] Through air inlet pressurizing device injects gas and pressurizes to second flow guide groove, and its pressure is greater than the water pressure of sensor body inlet end, thereby pushing the driving plate and driving rotating disc and rotating rod to rotate 90 degrees, and push the water in annular groove into first flow guide pipe, re-arrange into the inlet end of sensor body, simultaneously make the through groove on rotating rod communicate with flow guide pipe, thereby opening water flow.

[0012] The utility model further sets up: the inner side outer wall of arc-shaped groove and inner side outer wall all are arc surface, the both ends side wall of driving plate is the arc surface that sticks to the both sides inner wall of arc-shaped groove.

[0013] The utility model further sets up: flow detection subassembly sets up in the shell in sensor body, the outside surface of shell sticks to and is fixed to the inner wall of sensor body, the axle of shell is connected with rotating shaft in rotation, its end part that faces water flow import is provided with impeller, the tail end of shell still is provided with connecting rod, connecting rod is provided with the connecting groove of rotating shaft rotation connection, connecting groove is provided with the sensor for detecting the rotating speed of rotating shaft in.

[0014] The utility model has the advantages of: BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of this embodiment;

[0016] Figure 2 It is the half cut structure schematic diagram of this embodiment;

[0017] Figure 3 It is the internal structure schematic diagram of connecting column of this embodiment;

[0018] Figure 4 It is the partial structure schematic diagram of this embodiment;

[0019] Figure 5 It is the structure schematic diagram of rotating rod of this embodiment;

[0020] Figure 6It is a half cut structure schematic view of the flow detection assembly of the embodiment.

[0021] BRIEF DESCRIPTION OF DRAWINGS: 1, sensor body; 2, rotating rod; 3, connecting edge; 4, flow guide pipe; 5, through slot; 6, connecting column; 7, rotating disc; 8, arc-shaped slot; 9, driving plate; 10, flow guide hose; 11, first flow guide slot; 12, second flow guide slot; 13, air inlet connector; 14, shell; 15, rotating shaft; 16, impeller; 17, connecting rod; 18, sensor. DETAILED DESCRIPTION

[0022] The utility model will be made further detailed description in combination with the drawings.

[0023] Wherein, same parts are indicated by same reference numerals. It is to be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0024] As shown in the figure, a flow sensor with water flow on-off function, comprising a hollow sensor body 1, a flow detection assembly is arranged in the sensor body 1, a vertical rotating rod 2 is rotatably connected in the sensor body 1, a connecting edge 3 is arranged along the inner wall of the sensor body 1, a flow guide pipe 4 is arranged on the side of the connecting edge 3 facing the rotating rod 2, an arc-shaped slot is arranged on the end of the flow guide pipe 4 and abuts against the side surface of the rotating rod 2, a through slot 5 is formed horizontally and penetrates through both sides of the rotating rod 2, and a driving assembly is further arranged for driving the rotating rod 2 to control the communication or disconnection of the through slot 5 and the flow guide pipe 4.

[0025] During the use of the flow sensor, no additional valve for controlling water flow on-off is needed, the rotating rod 2 is driven to rotate by the driving assembly to control the on-off of the through slot 5 and the flow guide pipe 4, thereby controlling the on-off of water flow, reducing the complexity of the pipeline system and effectively reducing the construction cost and maintenance cost.

[0026] A connecting column 6 is connected to the top of the sensor body 1, an annular groove is arranged along the circumferential inner wall of the connecting column 6, a rotating disc 7 is rotatably connected in the annular groove, the rotating rod 2 is fixedly connected to the bottom of the rotating disc 7, and the driving assembly is used for driving the rotating disc 7 and the rotating rod 2 to ensure the stability of the rotating rod 2 in operation.

[0027] An arc-shaped slot 8 with a quarter of a circular cross section is formed in the connecting column, the bottom of the arc-shaped slot 8 is communicated with the annular slot, the upper surface of the rotating disc 7 is integrally formed with a driving plate 9 along the radial direction, the driving plate 9 is rotationally connected in the arc-shaped slot 8 and separates the arc-shaped slot 8 into two closed spaces, the driving assembly comprises a flow guide hose 10 arranged at the top of the connecting column 6, one end of the flow guide hose 10 is connected to the inlet end of the sensor body 1, and the inner wall of one end of the arc-shaped slot 8 is formed with a first flow guide slot 11 communicated with the flow guide hose 10;

[0028] When the water flow at the inlet end of the sensor body 1 enters the arc-shaped slot 8 through the flow guide pipe 4 and the first flow guide slot 11, the driving plate 9 is pushed to drive the rotating disc and the rotating rod 2 to rotate, and finally the driving plate 9 abuts against the inner wall of the other end of the arc-shaped slot 8, and the through slot 5 on the rotating rod 2 is perpendicular to the flow guide pipe 4, thereby blocking the flow guide pipe 4 to close the water flow.

[0029] The second flow guide slot 12 is formed in the inner wall of the other end of the arc-shaped slot 8, the surface of the connecting column 6 is provided with an air inlet joint 13 communicated with the second flow guide slot 12, and the air inlet joint 13 is connected with an air inlet pressurizing device (not shown in the figure), and the air inlet pressurizing device is specifically a gas pump;

[0030] The gas injection and pressurization device injects gas into the second flow guide slot 12 and pressurizes it, and the pressure is greater than the water pressure at the inlet end of the sensor body, thereby pushing the driving plate 9 and driving the rotating disc 7 and the rotating rod 2 to rotate by 90 degrees, and pushing the water in the annular slot into the first flow guide pipe 4 and re-discharging into the inlet end of the sensor body 1, while making the through slot 5 on the rotating rod 2 communicated with the flow guide pipe 4, thereby opening the water flow.

[0031] The inner side wall and the outer side wall of the arc-shaped slot 8 are both arc surfaces, the two end side walls of the driving plate 9 are arc surfaces abutting against the two inner walls of the arc-shaped slot 8, the sealing property of the two closed spaces in the arc-shaped slot 8 is ensured, thereby ensuring that the driving plate 9 can drive the rotating disc 7 and the rotating rod 2 to rotate, thereby ensuring the control of the water flow on-off.

[0032] The flow detection assembly is arranged in the shell 14 in the sensor body, the shell 14 is tubular and its outer side surface abuts against and is fixed to the inner wall of the sensor body 1, a rotating shaft 15 is rotationally connected at the shaft center in the shell 14, the end of the rotating shaft 15 towards the water inlet end is provided with an impeller 16, and the tail end of the shell 14 is further provided with a connecting rod 17, the connecting rod 17 is formed with a connecting slot for rotationally connecting the rotating shaft 15, and a sensor 18 for detecting the rotating speed of the rotating shaft 15 is arranged in the connecting slot.

[0033] The sensor 18 is specifically a Hall sensor (the Hall sensor is a prior art for the detection method of the rotating speed and the specific embodiment, and the present embodiment will not be described in detail), when the water flow passes through the shell 14, the impeller 16 is driven to rotate, the rotating speed of the rotating shaft 15 is detected, and the rotating speed signal of the rotating shaft 15 is output corresponding pulse signal output feedback, so as to detect the water flow speed and flow.

[0034] The specific embodiment is only an explanation of the present application, and is not a limitation of the present application. Those skilled in the art can make modifications to the present embodiment without creative contribution after reading the present specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A flow sensor with water flow interruption function, characterized in that: The device includes a hollow sensor body (1), a flow detection component inside the sensor body (1), a vertically arranged rotating rod (2) rotatably connected inside the sensor body (1), a connecting edge (3) along the inner wall of the sensor body (1), a flow guide tube (4) on the side of the connecting edge (3) facing the rotating rod (2), an arc-shaped groove at the end of the flow guide tube (4) fitting against one side surface of the rotating rod (2), a horizontal through groove (5) on the rotating rod (2) that extends through both sides, and a drive component for driving the rotating rod (2) to control the flow guide tube (4) to connect or disconnect the through groove (5).

2. A flow sensor with water flow interruption function according to claim 1, characterized in that: The top of the sensor body (1) is connected to a connecting post (6), and the connecting post (6) is provided with an annular groove along its inner circumference. A rotating disk (7) is rotatably connected in the annular groove, and the rotating rod (2) is fixedly connected to the bottom of the rotating disk (7). The driving assembly is used to drive the rotating disk (7) and the rotating rod (2).

3. A flow sensor with water flow interruption function according to claim 2, characterized in that: The connecting column (6) has an arc groove (8) with a quarter-circle cross section. The bottom of the arc groove (8) is connected to the annular groove. The upper surface of the rotating disk (7) is integrally formed with a drive plate (9) along its radial direction. The drive plate (9) is rotatably connected to the arc groove (8) and divides the arc groove (8) into two sealed spaces. The drive assembly includes a flow guide hose (10) set on the top of the connecting column (6). One end of the flow guide hose (10) is connected to the inlet end of the sensor body (1). The inner wall of one end of the arc groove (8) has a first flow guide groove (11) connected to the flow guide hose (10). After the water flow at the inlet end of the sensor body (1) enters the arc-shaped groove (8) through the guide pipe (4) and the first guide groove (11), it pushes the drive plate (9) to drive the turntable and the rotating rod (2) to rotate, and finally makes the drive plate (9) press against the inner wall of the other end of the arc-shaped groove (8). The through groove (5) on the rotating rod (2) is perpendicular to the guide pipe (4), thereby blocking the guide pipe (4) to shut off the water flow.

4. A flow sensor with water flow interruption function according to claim 3, characterized in that: The arc-shaped groove (8) is located on the inner wall of the other end of the first guide groove (11) and a second guide groove (12) is provided. The surface of the connecting column (6) is provided with an air inlet connector (13) and connected to the second guide groove (12). The air inlet connector (13) is connected to an air inlet pressurization device. Gas is injected and pressurized into the second guide groove (12) through the air inlet pressurization device. The pressure is greater than the water pressure at the inlet end of the sensor body (1), thereby pushing the drive plate (9) and causing the rotating disk (7) and rotating rod (2) to rotate 90 degrees, pushing the water in the annular groove into the first guide pipe (4), and then draining it back into the inlet end of the sensor body (1). At the same time, the through groove (5) on the rotating rod (2) is connected to the guide pipe (4), thereby opening the water flow.

5. A flow sensor with water flow interruption function according to claim 4, characterized in that: The inner and outer walls of the arc groove (8) are both arc surfaces, and the two end side walls of the drive plate (9) are arc surfaces that fit against the inner walls of the two sides of the arc groove (8).

6. A flow sensor with water flow interruption function according to claim 1, characterized in that: The flow detection component is housed in a housing (14) inside the sensor body (1). The outer surface of the housing (14) is attached to and fixed to the inner wall of the sensor body (1). A rotating shaft (15) is rotatably connected to the shaft center inside the housing (14). An impeller (16) is provided at the end of the shaft facing the water inlet. A connecting rod (17) is also provided at the tail end of the housing (14). The connecting rod (17) has a connecting groove for the rotating shaft (15) to be rotatably connected. A sensor (18) for detecting the rotation speed of the rotating shaft (15) is provided in the connecting groove.

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