Intelligent gas meter capable of preventing gas theft

Abstract

The utility model belongs to the technical field of gas metering, and particularly discloses an intelligent gas meter capable of preventing gas theft, which comprises a base and an upper cover, the base and the upper cover are buckled to form a cavity, the upper cover is provided with a counter bore, the base is fixedly provided with a fixing column corresponding to the counter bore, the fixing column is provided with a connecting hole, and a lead sealing anti-disassembly assembly is installed in the counter bore. The lead sealing anti-disassembly assembly comprises a lead sealing cap, a conductive part and a connecting piece, the connecting piece penetrates through the counter bore to be connected into the connecting hole in the fixing column, the conductive part is installed in the lead sealing cap, the lead sealing cap is installed in the counter bore, and the conductive part makes contact with the connecting piece; a main control circuit board is arranged in the cavity, and the connecting piece is electrically connected with the main control circuit board. According to the utility model, gas stealing behaviors can be found in time and treated in time, so that gas stealing is prevented. The gas meter is suitable for gas metering.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas metering technical field, specifically, it is an intelligent theftproof gas gas meter. BACKGROUND

[0002] As a kind of instrument for measuring gas usage, gas meter is widely used.Gas meter is usually connected with gas pipeline at one end and connected with cooking utensil at the other end, gas passes through gas meter from gas pipeline into cooking utensil, and the counter in gas meter measures gas usage.Gas meter usually includes upper cover and base connected with upper cover, and accommodating cavity for placing gas meter counter is formed between upper cover and base.In order to prevent unauthorized disassembly of upper cover and base of gas meter and unauthorized modification of gas meter counter, gas meter is usually provided with lead seal structure.

[0003] Gas theft is rampant, and various ways of gas theft emerge in endlessly, among which the most common form is that gas meter is damaged, disassembled and modified structure.Modification of meter requires first destroying the lead seal of meter, and after lead seal is destroyed, gas meter parameters and mechanical structure can be modified to achieve gas theft, while general lead seal is generally made of plastic and has simple structure, which can be easily destroyed and copied. CONTENT OF UTILITY MODEL

[0004] The purpose of the utility model is to provide an intelligent theftproof gas gas meter to timely discover gas theft and timely handle it to prevent gas theft.

[0005] In order to achieve the above purpose, the utility model adopts the following technical method:

[0006] An intelligent theftproof gas gas meter includes base and upper cover, and cavity is formed by buckling base and upper cover, counterbore is formed on upper cover, fixed column corresponding to counterbore is fixed on base, connecting hole is formed on fixed column, lead seal anti-disassembly assembly is installed in counterbore, lead seal anti-disassembly assembly includes lead seal cap, conductive part and connecting piece, connecting piece passes through counterbore and is connected in connecting hole on fixed column, conductive part is installed in lead seal cap, and conductive part contacts with connecting piece when lead seal cap is installed in counterbore;Main control circuit board is arranged in cavity, and connecting piece is electrically connected with main control circuit board.

[0007] As limitation: connecting piece is fastening screw, top end of fastening screw is cross recess, connecting hole is screw hole, conductive part is conductive sheet with cross structure, and bottom end of conductive sheet matches with top end of fastening screw, and bottom end of side wall of lead seal cap is provided with bayonet, and lead seal cap is clamped with top end of conductive sheet through bayonet.

[0008] As defined: the upper end surface of the lead seal cap is not higher than the hole opening of the counterbore, the outer side wall of the lead seal cap is provided with an annular groove, the inner side wall of the counterbore is provided with an annular protrusion matched with the annular groove of the outer side wall of the lead seal cap, and the lead seal cap is clamped with the counterbore through the annular groove and the annular protrusion.

[0009] As defined: it further comprises a buckling cover which is buckled on the upper cover and covers the lead seal anti-disassembly assembly.

[0010] As defined: the main control circuit board is provided with an MCU chip, the connecting piece is connected with the MCU chip through a wire, and the MCU chip is connected with an external management platform through a communication module.

[0011] As further defined: the cavity is provided with a counter and a liquid crystal display screen, the upper cover is provided with a transparent window for displaying the liquid crystal display screen and the counter, and the counter and the liquid crystal display screen are connected with the MCU chip.

[0012] The utility model discloses a kind of intelligent anti-theft gas gas meters, and the beneficial effects achieved compared with prior art are:

[0013] (1) the utility model provides a kind of intelligent anti-theft gas gas meter, lead seal anti-disassembly assembly is arranged between base and upper cover, and the conductive part of lead seal anti-disassembly assembly is electrically connected with main control circuit board by connecting piece, to form conductive path, and the state of lead seal anti-disassembly assembly is monitored by the on-off of circuit, can timely find the behavior of stealing gas, and timely handle, prevent stealing gas;

[0014] (2) the utility model provides a kind of intelligent anti-theft gas gas meter, and the conductive part is the conductive sheet of cross structure and the bottom end of conductive sheet is matched with the top end of fastening screw, and the side wall bottom end of lead seal cap is clamped with the top end of conductive sheet, so that lead seal cap is not easy to fall off after installation, ensure the close contact between conductive sheet and fastening screw, and form conductive path between main control circuit board;Lead seal cap is clamped with counterbore through annular groove and annular protrusion, increase the difficulty of illegal disassembly;The upper end surface of lead seal cap is not higher than the hole opening of counterbore, and buckling cover is buckled on upper cover and covers lead seal anti-disassembly assembly, can avoid lead seal anti-disassembly assembly to expose on the outer surface of gas meter, not only better in appearance, but also can reduce the damage suffered by lead seal anti-disassembly assembly.

[0015] The utility model is suitable for gas metering. ACCURACY

[0016] The utility model will be further explained in detail in connection with the drawings and specific embodiments.

[0017] Figure 1 It is the structure schematic diagram of the utility model embodiment a kind of intelligent anti-theft gas gas meter;

[0018] Figure 2This is a schematic diagram of the structure of the lead seal anti-tamper component according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the lead seal cap according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the conductive part in an embodiment of the present invention;

[0021] In the diagram: 1. Top cover; 2. Transparent window; 3. Lead seal anti-tamper assembly; 4. Lead seal cap; 41. Bayonet; 42. Annular groove; 5. Conductive sheet; 6. Fastening screw; 7. Wire. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments. However, those skilled in the art should understand that the present invention is not limited to the following embodiments. Any improvements and equivalent changes made based on the specific embodiments of the present invention are within the scope of protection of the claims of the present invention.

[0023] Example 1: A smart anti-theft gas meter

[0024] A smart anti-theft gas meter, such as Figure 1 As shown, the device includes a base, a top cover 1, and a snap-on cover. The base and top cover 1 are snapped together to form a cavity. The cavity houses a main control circuit board, a counter, and an LCD screen. The top cover 1 has a transparent window 2 for displaying the LCD screen and the counter. A countersunk hole is formed on the top cover 1. A corresponding fixing post is fixed to the base, and a connecting hole is formed on the fixing post. A lead-sealed anti-tamper component 3 is installed inside the countersunk hole. The snap-on cover is snapped onto the top cover 1 and covers the lead-sealed anti-tamper component 3. Figures 2-4 As shown, the lead seal anti-tamper assembly 3 includes a lead seal cap 4, a conductive part, and a connector. The connector passes through a countersunk hole and connects to a connection hole on a fixing post. The conductive part is installed inside the lead seal cap 4. The lead seal cap 4 is installed inside the countersunk hole and the conductive part contacts the connector. The upper end face of the lead seal cap 4 is not higher than the opening of the countersunk hole. An annular groove 42 is provided on the outer side wall of the lead seal cap 4. An annular protrusion matching the annular groove 42 on the inner side wall of the countersunk hole is provided. The lead seal cap 4 and the countersunk hole are engaged by the annular groove 42 and the annular protrusion. In this embodiment, the connector is a fastening screw 6. The top of the fastening screw 6 is a cross groove, the connection hole is a threaded hole, and the conductive part is a cross-shaped conductive piece 5 with the bottom end of the conductive piece 5 matching the top end of the fastening screw 6. A bayonet 41 is provided at the bottom end of the side wall of the lead seal cap 4. The lead seal cap 4 is engaged with the top end of the conductive piece 5 through the bayonet 41. The main control circuit board contains an MCU chip. The fastening screw 6 is connected to the MCU chip via wire 7. The counter and LCD screen are both connected to the MCU chip. The MCU chip communicates with the external management platform through the communication module. The external management platform manages the smart anti-theft gas meter in a unified manner.

[0025] The smart anti-theft gas meter of the embodiment, the conductive sheet 5 is connected with the MCU chip of the main control circuit board through the fastening screw 6 and the wire 7 to realize the closure of the circuit, and the state of the lead seal anti-disassembly component 3 is monitored through the on-off of the circuit. Once the lead seal anti-disassembly component 3 is damaged, the connection between the conductive sheet 5 and the MCU chip is disconnected, the MCU chip receives the disconnection signal, immediately records the disconnection time and reports to the management platform, the management platform can set the ways of SMS notification administrator, telephone notification, alarm notification, etc., to inform the manager to carry out on-site investigation, so as to timely discover the gas stealing behavior, and timely handle, to achieve the purpose of preventing gas theft.

Claims

1. An intelligent anti-theft gas meter, comprising a base and an upper cover, the base and the upper cover being fastened to form a cavity, characterized in that, A counterbore is formed on the upper cover, a fixing column corresponding to the counterbore is fixed on the base, a connecting hole is formed on the fixing column, a lead seal anti-disassembly assembly is installed in the counterbore, the lead seal anti-disassembly assembly comprises a lead seal cap, a conductive part and a connecting piece, the connecting piece is connected in the connecting hole on the fixing column through the counterbore, the conductive part is installed in the lead seal cap, the lead seal cap is installed in the counterbore and the conductive part contacts with the connecting piece; a main control circuit board is arranged in the cavity, and the connecting piece is electrically connected with the main control circuit board.

2. The intelligent anti-theft gas meter according to claim 1, characterized in that, The connecting piece is a fastening screw, the top end of the fastening screw is a cross recess, the connecting hole is a threaded hole, the conductive part is a conductive sheet with a cross structure and the bottom end of the conductive sheet matches the top end of the fastening screw, the bottom end of the side wall of the lead seal cap is provided with a bayonet, and the lead seal cap is clamped with the top end of the conductive sheet through the bayonet.

3. The intelligent anti-theft gas meter according to claim 1 or 2, characterized in that, The top end surface of the lead seal cap is not higher than the hole of the counterbore, an annular groove is arranged on the outer side wall of the lead seal cap, an annular protrusion matching the annular groove on the outer side wall of the lead seal cap is arranged on the inner side wall of the counterbore, and the lead seal cap is clamped with the counterbore through the annular groove and the annular protrusion.

4. The intelligent anti-theft gas meter according to claim 1 or 2, characterized in that, It also comprises a buckling cover, which is buckled on the upper cover and covers the lead seal anti-disassembly assembly.

5. The intelligent anti-theft gas meter according to claim 1 or 2, characterized in that, An MCU chip is arranged in the main control circuit board, the connecting piece is connected with the MCU chip through a wire, and the MCU chip is connected with an external management platform through a communication module.

6. The intelligent anti-theft gas meter according to claim 5, wherein, A counter and a liquid crystal display screen are arranged in the cavity, a transparent window for displaying the liquid crystal display screen and the counter is arranged on the upper cover, and the counter and the liquid crystal display screen are connected with the MCU chip.

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