An ultrasonic gas meter gas theft protection device

Abstract

The utility model provides a kind of ultrasonic gas meter gas theft protection device, it is related to instrument technical field, including the protection piece of the side wall, bottom wall of air inlet pipe are protected and the automatic blocking mechanism of the gas in air inlet pipe is blocked, located in the one side of gas meter shell inside is provided with the air inlet pipe of connecting external gas pipe network, located in the other side of gas meter shell inside is provided with the air outlet pipe of connecting user end gas pipeline, the ultrasonic measurement assembly of being provided with to gas for measurement between the air inlet pipe and air outlet pipe, the protection piece is arranged in the inside of gas meter shell, and automatic blocking mechanism is arranged between protection piece and air inlet pipe. The utility model effectively prevents the case that ultrasonic gas meter occurs gas theft by protection piece and automatic blocking mechanism, improves the security in the use process of gas meter.

Description

Technical Field

[0001] This utility model relates to the field of instrument technology, and in particular to an ultrasonic gas meter anti-theft device. Background Technology

[0002] An ultrasonic gas meter is an intelligent instrument that uses ultrasonic measurement technology to measure gas flow. It is widely used in gas metering in residential buildings, commercial buildings, and industrial sites. With its advantages of high precision, long lifespan, and intelligence, the ultrasonic gas meter is gradually replacing the traditional mechanical gas meter and becoming the mainstream equipment in the gas metering field. The ultrasonic gas meter not only improves the fairness and accuracy of metering, but also provides strong support for the intelligent management and safe operation of the gas industry.

[0003] During the use of ultrasonic gas meters, there is a possibility of gas theft, where gas is leaked out directly without passing through the ultrasonic metering device by using tools to damage the side or bottom wall of the gas inlet pipe. This theft can lead to large-scale gas leaks and increase the safety hazards during the use of ultrasonic gas meters. Utility Model Content

[0004] To address the technical problem of gas theft caused by using tools to damage the side or bottom wall of the gas inlet pipe, resulting in large-scale gas leakage and increasing safety hazards during gas meter use, this utility model provides an ultrasonic gas meter theft prevention device.

[0005] The ultrasonic gas meter anti-theft device provided by this utility model adopts the following technical solution:

[0006] An ultrasonic gas meter anti-theft device includes a protective component for protecting the side and bottom walls of an inlet pipe and an automatic blocking mechanism for blocking the gas in the inlet pipe. An inlet pipe connected to an external gas pipeline is located on one side inside the gas meter casing, and an outlet pipe connected to a user's gas pipeline is located on the other side inside the gas meter casing. An ultrasonic metering component for measuring gas is installed between the inlet and outlet pipes. The protective component is located inside the gas meter casing, and the automatic blocking mechanism is located between the protective component and the inlet pipe.

[0007] By adopting the above technical solution: the side walls and bottom walls of the intake pipe are protected by protective components to prevent damage to the side walls and bottom walls of the intake pipe by tools, and the gas in the intake pipe is blocked by an automatic blocking mechanism to further prevent gas theft.

[0008] Furthermore, the protective component has a mounting groove with openings on the top and sides, and the air intake pipe is disposed in the mounting groove through the top opening and the side opening of the mounting groove.

[0009] By adopting the above technical solution, the protective component can shield and protect the side and bottom walls of the air intake pipe.

[0010] Furthermore, the automatic blocking mechanism includes a sealing assembly and a moving assembly that causes the sealing assembly to perform a sealing action.

[0011] By adopting the above technical solution, it is possible to automatically block the combustion gas inside the intake pipe.

[0012] Furthermore, the movable component includes a movable column and a thrust spring. Inside the protective component, there is a pressurization chamber where the pressure inside the pressurization chamber is greater than the external ambient pressure. The movable column is slidably mounted on the side wall of the pressurization chamber. A fixing plate is located at the end of the movable column. An L-shaped connecting arm protrudes outward from the outer wall of the pressurization chamber. The end of the movable column away from the pressurization chamber passes through and is slidably mounted at the end of the connecting arm. A thrust spring is located between the end of the connecting arm and the outer wall of the pressurization chamber, and the thrust spring is sleeved on the outside of the movable column.

[0013] By adopting the above technical solution, when the outer wall of the protective component is not damaged, the position of the moving column can remain unchanged, so that the position of the component connected to the moving column can remain unchanged, and the gas in the intake pipe remains unobstructed.

[0014] Furthermore, the sealing assembly includes a circular plate slidably disposed inside the intake pipe, the outer diameter of the circular plate being smaller than the inner diameter of the intake pipe, and a baffle fixedly disposed around the inner wall of the intake pipe, the baffle being disposed at the bottom of the circular plate, and a circular vent hole being located on the baffle, the outer diameter of the circular vent hole being smaller than the outer diameter of the circular plate.

[0015] By adopting the above technical solution: by moving the disc to the baffle, the circular vent hole in the baffle is blocked, thus interrupting the gas supply.

[0016] Furthermore, a positioning plate is fixedly installed at the bottom of the baffle. The positioning plate has a sliding hole, and a sliding shaft is located at the bottom of the disc. The sliding shaft passes through the baffle and is slidably disposed in the sliding hole in the positioning plate.

[0017] By adopting the above technical solution, the disc is slidably positioned inside the intake pipe.

[0018] Furthermore, a base plate is slidably installed at the bottom of the sliding hole in the positioning plate. The base plate is in contact with the bottom end of the sliding shaft. One end of the base plate passes through the side wall of the air intake pipe and is connected to the side wall of the moving column. By moving the moving column laterally, the base plate is slid to the outside of the sliding hole in the positioning plate.

[0019] By adopting the above technical solution, the position of the circular piece is limited by the base plate, preventing the circular piece from sealing the circular vent hole in the baffle.

[0020] Furthermore, a tension spring is provided around the outer wall of the bottom sliding shaft of the disc, with one end of the tension spring fixedly connected to the bottom of the disc and the other end fixedly connected to the top wall of the positioning plate.

[0021] By adopting the above technical solution, the disc moves rapidly downward under the tension of the tension spring, sealing the circular vent hole in the baffle.

[0022] In summary, the beneficial effects of this utility model are as follows:

[0023] 1. By incorporating protective components, this utility model shields the side and bottom walls of the gas inlet pipe during use, thereby protecting these walls and making them less susceptible to penetration by tools. This effectively prevents gas theft and improves the safety of the gas meter during use.

[0024] 2. This utility model, by setting an automatic blocking mechanism, ensures that when the outer wall of the protective component is broken by a tool, reducing the pressure inside the pressurization chamber, the moving column in the automatic blocking mechanism moves into the pressurization chamber under the elastic force of the thrust spring. During the movement, the moving column drives the base plate to slide outside the sliding hole in the positioning plate, causing the circular disc to slide rapidly downward under the tension of the tension spring, sealing the circular vent hole in the baffle, thereby blocking the gas in the inlet pipe. This structure further serves to prevent gas theft, effectively preventing gas theft from the ultrasonic gas meter and further improving the safety of the gas meter during use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the upper sectional view of the present invention;

[0027] Figure 3 This is a schematic side sectional view of the present invention;

[0028] Figure 4 This utility model Figure 3 Enlarged view of part A in the middle.

[0029] In the diagram: 1. Gas meter casing; 2. Inlet pipe; 3. Outlet pipe; 4. Ultrasonic metering component; 5. Protective component; 6. Automatic shut-off mechanism; 51. Mounting slot; 52. Pressure chamber; 53. Connecting arm; 61. Moving column; 62. Thrust spring; 63. Circular plate; 64. Baffle; 65. Base plate; 66. Positioning plate; 67. Tension spring. Detailed Implementation

[0030] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0031] Example: Figures 1-4 The image shows an ultrasonic gas meter anti-theft device.

[0032] The first embodiment of this utility model, referred to... Figures 1-3 As shown, an ultrasonic gas meter theft prevention device is disclosed, including a protective component 5. An inlet pipe 2 is provided on one side inside the gas meter housing 1, which connects to the external gas pipeline network and introduces gas into the gas meter. An outlet pipe 3 is provided on the other side inside the gas meter housing 1, which connects to the gas pipeline at the user end. An ultrasonic metering component 4 for measuring gas is provided between the inlet pipe 2 and the outlet pipe 3. The protective component 5 is located inside the gas meter housing 1.

[0033] Furthermore, the protective component 5 has a mounting groove 51 with openings on the top and sides. The air intake pipe 2 is installed in the mounting groove 51 through the top opening and side opening of the mounting groove 51, and the bottom and side walls of the air intake pipe 2 are shielded and protected by the outer wall of the mounting groove 51.

[0034] In use, the protective component 5 shields the side and bottom walls of the air inlet pipe 2, thereby protecting the side and bottom walls of the air inlet pipe 2 and making it difficult for tools to penetrate them. This effectively prevents gas theft and improves the safety of the gas meter during use.

[0035] Reference Figure 3 and Figure 4 As shown, this utility model discloses a second embodiment, in which an automatic blocking mechanism 6 is provided between the protective component 5 and the intake pipe 2 to automatically block the combustion gas in the intake pipe 2. The automatic blocking mechanism 6 includes a sealing component and a moving component that causes the sealing component to perform a sealing action. Preferably, the movable component includes a movable column 61 and a thrust spring 62. A pressure chamber 52 is located inside the protective component 5, where the internal pressure is greater than the external ambient pressure. The movable column 61 is slidably mounted on the side wall of the pressure chamber 52. A fixing plate is located at the end of the movable column 61, which, under the pressure inside the pressure chamber 52, blocks the inner wall of the pressure chamber 52. An L-shaped connecting arm 53 protrudes outward from the outer wall of the pressure chamber 52. One end of the movable column 61, away from the pressure chamber 52, passes through and slidably mounts the end of the connecting arm 53. A thrust spring 62 is positioned between the end of the connecting arm 53 and the outer wall of the pressure chamber 52, sleeved on the outside of the movable column 61, with the spring force of the thrust spring 62 being less than the pressure inside the pressure chamber 52.

[0036] Furthermore, refer to Figure 4 As shown, the sealing assembly includes a circular plate 63 slidably disposed inside the intake pipe 2. The outer diameter of the circular plate 63 is smaller than the inner diameter of the intake pipe 2. A baffle 64 is fixedly disposed around the inner wall of the intake pipe 2. The baffle 64 is disposed at the bottom of the circular plate 63 and has a circular vent hole. The outer diameter of the circular vent hole is smaller than the outer diameter of the circular plate 63. When the circular plate 63 moves downward, it can seal the circular vent hole in the baffle 64, thereby blocking the combustion gas inside the intake pipe 2. A positioning plate 66 is fixedly installed at the bottom of the baffle 64. The positioning plate 66 has a sliding hole, and a sliding shaft is located at the bottom of the circular piece 63. The sliding shaft passes through the baffle 64 and is slidably disposed in the sliding hole in the positioning plate 66. A base plate 65 is slidably installed at the bottom of the sliding hole in the positioning plate 66. The base plate 65 stops the bottom of the sliding shaft in the circular piece 63. Under normal ventilation conditions, it prevents the circular piece 63 from contacting the upper wall of the baffle 64, allowing the gas to flow smoothly. In case of abnormality, the circular piece 63 seals the circular vent hole, blocking the continued flow of gas. One end of the base plate 65 passes through the side wall of the air inlet pipe 2 and is connected to the side wall of the moving column 61. By moving the moving column 61 laterally, the base plate 65 is slid to the outside of the sliding hole in the positioning plate 66.

[0037] Furthermore, a tension spring 67 is provided around the outer wall of the bottom sliding shaft of the disc 63. One end of the tension spring 67 is fixedly connected to the bottom of the disc 63, and the other end is fixedly connected to the top wall of the positioning plate 66. When the bottom plate 65 slides out from the bottom of the sliding shaft in the disc 63, the sliding shaft in the disc 63 slides down rapidly under the tension of the tension spring 67, so that the disc 63 seals the circular vent hole in the baffle 64.

[0038] When this utility model is in use, if the outer wall of the protective component 5 is broken by a tool, the internal pressure of the pressurization chamber 52 decreases. At this time, the moving column 61 moves into the pressurization chamber 52 under the elastic force of the thrust spring 62. During the movement, the moving column 61 drives the base plate 65 to slide to the outside of the sliding hole in the positioning plate 66, so that the sliding shaft in the disc 63 can slide downward in the sliding hole in the positioning plate 66. Under the pulling force of the tension spring 67, the disc 63 slides downward quickly to seal the circular vent hole in the baffle 64, thereby blocking the gas in the inlet pipe 2. This structure further plays the role of preventing gas theft, effectively preventing gas theft from the ultrasonic gas meter, and further improving the safety of the gas meter during use.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic gas meter anti-theft device, characterized in that, The gas meter includes a protective component (5) for protecting the side and bottom walls of the inlet pipe (2) and an automatic blocking mechanism (6) for blocking the gas in the inlet pipe (2). An inlet pipe (2) connected to an external gas pipeline is provided on one side inside the gas meter housing (1), and an outlet pipe (3) connected to a user-end gas pipeline is provided on the other side inside the gas meter housing (1). An ultrasonic metering component (4) for measuring gas is provided between the inlet pipe (2) and the outlet pipe (3). The protective component (5) is provided inside the gas meter housing (1), and an automatic blocking mechanism (6) is provided between the protective component (5) and the inlet pipe (2).

2. The ultrasonic gas meter theft protection device of claim 1, wherein, The protective component (5) has a mounting groove (51) with openings on the top and side, and the air intake pipe (2) is disposed in the mounting groove (51) through the top opening and side opening of the mounting groove (51).

3. The ultrasonic gas meter theft protection device of claim 1, wherein, The automatic blocking mechanism (6) includes a sealing component and a moving component that causes the sealing component to perform a sealing action.

4. The ultrasonic gas meter theft protection device of claim 3, wherein, The moving component includes a moving column (61) and a thrust spring (62). Inside the protective component (5), there is a pressurization chamber (52). The pressure inside the pressurization chamber (52) is greater than the external environmental pressure. The moving column (61) is slidably disposed on the side wall of the pressurization chamber (52). A fixing plate is located at the end of the moving column (61). An L-shaped connecting arm (53) is provided protruding outward on the outer wall of the pressurization chamber (52). One end of the moving column (61) away from the pressurization chamber (52) passes through and is slidably disposed at the end of the connecting arm (53). A thrust spring (62) is provided between the end of the connecting arm (53) and the outer wall of the pressurization chamber (52). The thrust spring (62) is sleeved on the outside of the moving column (61).

5. The ultrasonic gas meter theft protection device of claim 4, wherein, The sealing assembly includes a disc (63) that is slidably disposed inside the air intake pipe (2). The outer diameter of the disc (63) is smaller than the inner diameter of the air intake pipe (2). A baffle (64) is fixedly disposed around the inner wall of the air intake pipe (2). The baffle (64) is disposed at the bottom of the disc (63). A circular vent hole is located on the baffle (64). The outer diameter of the circular vent hole is smaller than the outer diameter of the disc (63).

6. The ultrasonic gas meter theft protection device of claim 5, wherein, A positioning plate (66) is fixedly installed at the bottom of the baffle (64). The positioning plate (66) has a sliding hole, and a sliding shaft is located at the bottom of the disc (63). The sliding shaft passes through the baffle (64) and is slidably disposed in the sliding hole in the positioning plate (66).

7. The ultrasonic gas meter theft protection device of claim 6, wherein, A base plate (65) is slidably installed at the bottom of the sliding hole in the positioning plate (66). The base plate (65) is in contact with the bottom end of the sliding shaft. One end of the base plate (65) passes through the side wall of the air inlet pipe (2) and is connected to the side wall of the moving column (61). By moving the moving column (61) laterally, the base plate (65) is slid to the outside of the sliding hole in the positioning plate (66).

8. The ultrasonic gas meter theft protection device of claim 7, wherein, A tension spring (67) is also provided around the outer wall of the bottom sliding shaft of the disc (63). One end of the tension spring (67) is fixedly connected to the bottom of the disc (63), and the other end is fixedly connected to the top wall of the positioning plate (66).

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