Built-in pressure tapping device of electromagnetic water meter

Abstract

The utility model discloses a built-in pressure tapping device of an electromagnetic water meter, relates to the field of built-in pressure tapping, and aims to improve the problems that in the long-term use process of the technical scheme, a pressure tapping component is arranged outside a guide pipe of the electromagnetic water meter, so that a pressure sensor is exposed and cannot work normally under the influence of an external environment, and the pressure tapping result of the electromagnetic water meter is possibly reduced. Comprising a flow guide pipe, an installation base is fixed to the outer wall of the flow guide pipe, an installation cavity is formed in the installation base, a pressure tapping hole is formed in the side wall of the flow guide pipe and communicated with the installation cavity, and a pressure sensor is fixed to the inner wall of the installation base. The effect of preventing the pressure sensor from being damaged due to direct impact of fluid is achieved, so that the service life and the measurement precision of the pressure sensor are improved.

Description

Technical Field

[0001] The utility model relates to the field of built-in pressure taking, in particular to a built-in pressure taking device of an electromagnetic water meter. Background Art

[0002] Electromagnetic water meter is a metering instrument designed specifically for the water industry. It is more suitable for practical scenarios in the domestic water meter usage environment. The design features of the electromagnetic water meter include a full-through structure, which results in zero pressure loss and zero wear, making it suitable for long-term stable operation.

[0003] Chinese Utility Model Publication No. CN221123502U discloses a pressure-taking structure for an electromagnetic water meter, comprising an electromagnetic water meter conduit; an electrode holder welded to the outside of the electromagnetic water meter conduit; a lining disposed on one side of the electromagnetic water meter conduit; a pressure-taking electrode threadedly connected to the inside of the electrode holder; and an electrode washer disposed at the connection end between the pressure-taking electrode and the electrode holder.

[0004] In the process of implementing the present invention, there are at least the following problems in this technology. Although the installation process of this design is simple and convenient for staff to operate, during long-term use, the pressure taking component is arranged on the outside of the electromagnetic water meter conduit, resulting in the pressure sensor being exposed and easily unable to work normally under the influence of the external environment, which may reduce the pressure taking results of the electromagnetic water meter. Therefore, a built-in pressure taking device for the electromagnetic water meter is now proposed. Utility Model Content

[0005] In order to improve the long-term use of the technical solution, the pressure taking component is arranged on the outside of the electromagnetic water meter conduit, resulting in the pressure sensor being exposed, occupying a large space, and easily failing to work normally under the influence of the external environment, which may reduce the pressure taking results of the electromagnetic water meter. The utility model provides a built-in pressure taking device for the electromagnetic water meter.

[0006] The utility model provides a built-in pressure-taking device for an electromagnetic water meter, which adopts the following technical solutions:

[0007] The built-in pressure-taking device of the electromagnetic water meter includes a flow guide tube, a mounting seat is fixed to the outer wall of the flow guide tube, a mounting cavity is formed inside the mounting seat, a pressure-taking hole is opened on the side wall of the flow guide tube, the pressure-taking hole is connected to the mounting cavity, and a pressure sensor is fixed to the inner wall of the mounting seat.

[0008] By adopting the above technical solution, a mounting seat is provided on the outer wall of the guide tube for installing a pressure sensor, the mounting cavity in the mounting seat is isolated from the outside world, and a pressure taking hole connected to the mounting cavity is opened on the side wall of the guide tube to facilitate water circulation for pressure measurement. The setting of the mounting seat provides protection for the pressure sensor, reduces the impact of the external environment on the pressure sensor, and makes the working process of the pressure sensor more stable.

[0009] Optionally, a buffer gasket is fixed to the bottom of the pressure sensor.

[0010] By adopting the above technical solution, the provision of the buffer gasket effectively protects the pressure sensor and plays a role in preventing the pressure sensor from being damaged due to direct impact of the fluid, thereby increasing the service life of the pressure sensor.

[0011] Optionally, a pressure sensor pressing piece is installed on the side wall of the mounting seat, and the side wall of the pressure sensor pressing piece abuts against the side wall of the pressure sensor.

[0012] By adopting the above technical solution, the arrangement of the pressure sensing pressing piece provides support and protection for the pressure sensor, thereby preventing the pressure sensor from being pushed out by water pressure.

[0013] Optionally, the pressure sensor pressing piece and the mounting seat are fixed by fixing bolts.

[0014] By adopting the above technical solution, the connection between the pressure sensor pressing piece and the mounting seat is firm under the fixing action of the fixing bolt, ensuring that the pressure sensor will not be pushed out by water pressure.

[0015] Optionally, flanges are fixed at both ends of the flow guide pipe.

[0016] By adopting the above technical solution, the diversion pipe can be connected to the user's pipeline through the flanges at both ends, so that the water pressure of the user's pipeline can be measured.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. This utility model installs the pressure sensor inside the mounting seat on the side wall of the guide pipe, thus avoiding exposure of the pressure sensor. At the same time, the water flow inside the guide pipe is sampled through the pressure sampling hole, and the pressure sensor then detects the water pressure of the sampled water flow. This arrangement reduces the influence of the external environment on the operation of the pressure sensor and improves the accuracy of the pressure measurement results of the built-in pressure measurement device of the electromagnetic water meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0021] Explanation of the accompanying reference numerals: 1. Flow guide tube; 2. Mounting seat; 3. Mounting cavity; 4. Pressure tapping hole; 5. Pressure sensor; 6. Buffer gasket; 7. Pressure sensor pressing piece; 8. Fixing bolt; 9. Flange. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-2This application is described in further detail.

[0023] Please refer to Figure 1 The built-in pressure-taking device of the electromagnetic water meter includes a guide tube 1, and flanges 9 are fixed at both ends of the guide tube 1. The electromagnetic water meter can be connected to the user pipeline through the flange 9.

[0024] Reference Figure 2 A mounting base 2 is fixedly mounted on the side wall of the flow conduit 1, and a pressure sensor 5 is fixed to the inner wall of the mounting base 2. The provision of the mounting base 2 reduces the impact of the external environment on the pressure sensor 5 and increases the stability of the pressure sensor 5 during operation. The interior of the mounting base 2 forms a mounting cavity 3. A pressure tapping hole 4 is provided on the side wall of the flow conduit 1. The pressure sensor 5 is located within the mounting cavity 3, making it internal, reducing the possibility of damage to the pressure sensor 5 caused by the external environment. The provision of the pressure tapping hole 4 allows the water flow in the flow conduit 1 to be sampled through the pressure tapping hole 4. The pressure sensor 5 detects the water pressure by detecting the sampled water flow.

[0025] Reference Figure 2 A buffer gasket 6 is fixed to the inner wall of the mounting base 2 , and the side wall of the buffer gasket 6 is close to the pressure sensor 5 , which reduces the impact of the sampling water flow on the pressure sensor 5 and increases the service life of the pressure sensor 5 .

[0026] Reference Figure 1 and Figure 2 , a pressure sensor 5 pressing piece is fixed on the top of the mounting base 2, and the bottom of the pressure sensor 5 pressing piece is in contact with the upper surface of the pressure sensor 5, which further increases the stability of the pressure sensor 5 during operation and reduces the possibility of the pressure sensor 5 sliding out of the inner wall of the mounting base 2. The pressure sensor 5 pressing piece is fixed to the mounting base 2 by fixing bolts 8. In the embodiment of the present application, there are preferably four fixing bolts 8, and the four bolts are respectively located at the four corners of the pressure sensor 5 pressing piece. The setting of the fixing bolts 8 makes the pressure sensor 5 pressing piece stably fixed to the side wall of the mounting base 2, while reducing the possibility of the pressure sensor 5 pressing piece sliding on the side wall of the mounting base 2, providing a stable working environment for the pressure sensor 5 and improving the accuracy of the pressure sensor 5 during operation.

[0027] The implementation principle of this utility model is:

[0028] The pressure sensor 5 is fixed to the inner wall of the mounting base 2 through the pressure sensor 5 pressing piece. The mounting cavity 3 and the pressure taking hole 4 are connected. A buffer gasket 6 is fixedly installed on the inner wall of the mounting cavity 3. The buffer gasket 6 is located between the pressure taking hole 4 and the pressure sensor 5. When water flows into the guide tube 1 and flows through the pressure taking hole 4, the pressure taking hole 4 samples the water flow. The pressure generated by the sampled water flow acts on the buffer gasket 6. Subsequently, the pressure generated by the sampled water flow acts on the pressure sensor 5. The pressure sensor 5 converts the detected pressure into a signal output;

[0029] The flanges 9 at both ends facilitate the connection of the flow guide pipe 1 to the user pipeline, so that the pipeline water pressure can be measured.

[0030] The provision of the fixing bolts 8 can provide a firm connection for the pressure sensor 5 pressing piece, so that the pressure sensor 5 pressing piece is stably fixed to the top of the mounting base 2, ensuring that the pressure sensor 5 will not be pushed out by water pressure.

[0031] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A built-in pressure-taking device for an electromagnetic water meter, comprising a flow guide tube (1), characterized in that: A mounting seat (2) is fixed on the outer wall of the flow guide tube (1), a mounting cavity (3) is formed inside the mounting seat (2), a pressure-taking hole (4) is opened on the side wall of the flow guide tube (1), the pressure-taking hole (4) is communicated with the mounting cavity (3), and a pressure sensor (5) is fixed on the inner wall of the mounting seat (2).

2. The built-in pressure-taking device of the electromagnetic water meter according to claim 1, characterized in that: A buffer gasket (6) is fixed to the bottom of the pressure sensor (5).

3. The built-in pressure-taking device of the electromagnetic water meter according to claim 2, characterized in that: A pressure sensor (5) pressing piece is mounted on the side wall of the mounting seat (2), and the side wall of the pressure sensor (5) pressing piece abuts against the side wall of the pressure sensor (5).

4. The built-in pressure-taking device of the electromagnetic water meter according to claim 3, characterized in that: The pressure sensor (5) pressing piece and the mounting seat (2) are fixed by fixing bolts (8).

5. The built-in pressure-taking device of the electromagnetic water meter according to claim 1, characterized in that: Flanges (9) are fixed at both ends of the flow guide pipe (1).

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