Intelligent water meter for deep well

Abstract

The utility model provides a deep well intelligent water meter which comprises a base meter, an outer cover is arranged on the base meter, a fixing groove is formed in the outer cover, a circuit board box assembly is arranged in the fixing groove, the circuit board box assembly comprises a box body, a circuit board, an inner cover and an outer cover, a limiting groove is formed in the box body, and the circuit board is arranged in the limiting groove. The inner cover is fixed to the top of the limiting groove through ultrasonic welding, and the outer cover is fixed to the top of the box body through ultrasonic welding. And pouring sealants are respectively poured inside and outside the box body. The circuit board assembly is separated from the outer cover, so that only the circuit board box assembly needs to be replaced when the circuit board breaks down in the later period, the whole cover body does not need to be replaced, and the maintenance cost is reduced; the circuit board box assembly is provided with an inner cover and an outer cover which are respectively subjected to ultrasonic welding and glue filling treatment to form a two-layer sealing structure, so that the sealing performance is more excellent, and the circuit board box assembly can be soaked in water for a long time; meanwhile, the glue filling areas are concentrated inside and outside the box body, so that the glue filling areas are greatly reduced, the consumption of the pouring sealant is reduced, and the production cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the field of water meters, in particular to a deep well intelligent water meter. Background Art

[0002] Smart water meters are widely used because of their convenience in reading flow data. In order to prevent the water meter from freezing and affecting normal use in northern regions, water meters are often installed in water meter wells. However, the environment in the water meter well is humid and even water may accumulate. Smart water meters are usually equipped with batteries, circuit boards and various electronic components. Therefore, smart water meters in water meter wells have high requirements for sealing, and special deep well smart water meters are required.

[0003] At present, deep well smart water meters on the market generally use the method of overall glue filling to seal the circuit board and other components together in the outer cover. Although this method ensures the sealing, the outer cover can only be replaced as a whole during later maintenance, which increases the maintenance cost. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to provide a deep well intelligent water meter, which does not need to replace the entire outer cover when the circuit board fails, thereby reducing the cost of later replacement. To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] (II) Technical solution

[0007] A deep well intelligent water meter comprises a base meter, an outer cover is fixedly provided on the base meter, a fixing groove is provided in the outer cover, a circuit board box assembly is fixed in the fixing groove by a buckle, the circuit board box assembly comprises a box body, a circuit board, an inner cover and an outer cover, a limiting groove is provided in the box body, the circuit board is placed in the limiting groove, the inner cover is fixed to the top of the limiting groove by ultrasonic welding, and the outer cover is fixed to the top of the box body by ultrasonic welding; the inside and the outside of the box body are respectively filled with potting glue.

[0008] Furthermore, a battery is installed in the box body.

[0009] Furthermore, a line card is provided in the box body.

[0010] Furthermore, a polarity mark protruding upward is provided on the top of the outer cover, an upper box is fixedly connected to the top of the outer cover by screws, and the bottom of the upper box is against the top of the polarity mark.

[0011] Furthermore, a communication hole is provided through the outer cover.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically:

[0014] 1. The circuit board is placed in the circuit board box assembly and separated from the outer cover, so that when the circuit board fails later, only the circuit board box assembly needs to be replaced, without replacing the entire cover, reducing maintenance costs;

[0015] 2. The circuit board box assembly is equipped with an inner cover and an outer cover, and ultrasonic welding and glue filling are performed respectively to form a two-layer sealing structure, which has better sealing performance and can be immersed in water for a long time;

[0016] 3. The glue filling area is concentrated inside and outside the circuit board box. Compared with the traditional overall glue filling, the glue filling area is greatly reduced, the consumption of potting glue is reduced, and the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0018] Figure 1 It is the overall exploded view of the utility model;

[0019] Figure 2 It is a schematic diagram of the appearance structure of the circuit board box assembly;

[0020] Figure 3 This is an exploded view of the circuit board box assembly.

[0021] Description of Figure Numbers:

[0022] 1. Base table; 2. Outer cover; 21. Fixed slot; 3. Box body; 31. Limiting groove; 4. Circuit board; 5. Inner cover; 6. Outer cover; 61. Communication hole; 62. Polarity identification; 7. Put on the box 8. Line card. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0028] See also Figures 1 to 3 As shown, a deep well smart water meter includes a base meter 1, an outer cover 2 is fixed on the base meter 1, a fixing groove 21 is provided in the outer cover 2, a circuit board box assembly is fixed in the fixing groove 21 by a buckle, and the circuit board box assembly includes a box body 3, a circuit board 4, an inner cover 5, an outer cover 6 and a battery. Specifically:

[0029] A limiting groove 31 is provided in the box body 3, the circuit board 4 is placed in the limiting groove 31, the battery is located in the box body 3 and arranged outside the limiting groove 31, the inner cover 5 is fixed to the top of the limiting groove 31 by ultrasonic welding, and the outer cover 6 is fixed to the top of the box body 3 by ultrasonic welding; the inside and outside of the box body 3 are respectively filled with potting glue.

[0030] It is understandable that, in order to prevent the connector from loosening due to shaking of the power cord, a wire clip 8 is provided in the box body 3 .

[0031] The assembly steps of the utility model are:

[0032] 1. Place the circuit board 4 into the limiting groove 31 and tighten the screws;

[0033] 2. Cover the inner cover 5 and use ultrasonic welding to process the outer periphery of the inner cover 5;

[0034] 3. Glue is poured onto the top of the inner cover 5 to place the circuit board 4 in a closed space;

[0035] 4. Install the battery, connect the line and fix the line card 8;

[0036] 5. Cover the outer cover 6 and use ultrasonic welding to process the outer periphery of the outer cover 6;

[0037] 6. Carry out glue filling treatment on the entire top of the circuit board assembly;

[0038] 7. Install the glue-filled circuit board assembly into the fixing groove 21 and install the upper box.

[0039] Through the above technical solution, the circuit board 4 and the circuit board assembly are separated from the outer cover, so that when the circuit board fails later, only the circuit board box assembly needs to be replaced, and there is no need to replace the entire cover, thereby reducing maintenance costs.

[0040] It is worth mentioning that the top of the outer cover 6 is provided with an upwardly protruding polarity mark 62, and the top of the outer cover 2 is fixedly connected to the upper box 7 by screws, and the bottom of the upper box 7 is against the top of the polarity mark 62. By providing the upwardly protruding polarity mark 62, on the one hand, it serves as a direction prompt when installing the battery, and on the other hand, the polarity mark 62 and the upper box 7 are abutted against each other to ensure the stability of the circuit board box assembly after installation and prevent loosening.

[0041] It should be noted that a communication hole 61 is formed through the outer cover 6 to avoid interference with the communication signal.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A deep well intelligent water meter, comprising a base meter (1), on which an outer cover (2) is fixedly provided. Features: The outer cover (2) is provided with a fixing groove (21), and a circuit board box assembly is fixed in the fixing groove (21) by means of a buckle. The circuit board box assembly comprises a box body (3), a circuit board (4), an inner cover (5), and an outer cover (6). The box body (3) is provided with a limiting groove (31), and the circuit board (4) is placed in the limiting groove (31). The inner cover (5) is fixed to the top of the limiting groove (31) by means of ultrasonic welding, and the outer cover (6) is fixed to the top of the box body (3) by means of ultrasonic welding. The inside and outside of the box body (3) are respectively filled with potting glue.

2. A deep well smart water meter according to claim 1, Features: The box body (3) is also equipped with a battery.

3. A deep well smart water meter according to claim 2, Features: A line card (8) is arranged inside the box body (3).

4. A deep well smart water meter according to claim 2, Features: The top of the outer cover (6) is provided with a polarity mark (62) protruding upwards, and the top of the outer cover (2) is fixedly connected to an upper box (7) by means of screws, and the bottom of the upper box (7) abuts against the top of the polarity mark (62).

5. A deep well smart water meter according to claim 1, Features: The outer cover (6) is provided with a communication hole (61) extending therethrough.

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