Gas metering failure assisted detection device

Abstract

The utility model relates to a kind of gas meter measurement failure auxiliary detection device, including the shell for wrapping gas meter, the shell is opened with the first through-hole for the gas pipeline passes through, the first through-hole is fixedly connected with installation component, the installation component is used to seal and fixedly install on the gas pipeline with shell, the shell is also opened with second through-hole, the second through-hole is connected with sleeve, the sleeve is fixedly connected on shell, observation component for indicating the pressure change in shell interior is installed on the sleeve. It aims at solving the measurement failure detection and leakage investigation of prior art for gas meter, mainly rely on user repair, however, user based on pungent smell or find gas cost abnormally high when repair, leakage can have diffused entire kitchen at this time, with big security risk problem.

Description

Technical Field

[0001] This utility model relates to the field of gas meter technology, specifically to an auxiliary detection device for gas meter metering faults. Background Technology

[0002] Gas meters are critical metering instruments in urban gas transmission and distribution systems, and their accuracy directly impacts the economic benefits of gas supply companies and fair transactions for users. Furthermore, gas leaks pose a significant safety hazard, affecting users' lives and property. In actual operation, gas meters and their connections to gas pipelines are prone to minute leaks that are difficult to detect visually due to material aging, improper installation, and other reasons. Such leaks can lead to inaccurate metering and energy waste, and can even accumulate to create an explosive gas atmosphere, posing a serious safety threat.

[0003] Currently, the detection of metering faults and leaks in gas meters mainly relies on user reports. However, users only report problems when they smell an irritating odor (indicating that the gas has been odorized) or when they notice an abnormal increase in gas bills. By this time, the leak may have already spread throughout the kitchen, posing a significant safety hazard. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an auxiliary detection device for gas meter metering faults, so as to solve the problem that the existing technology for gas meter metering fault detection and leak investigation mainly relies on user reports. However, users only report the problem when they have a pungent smell or find that the gas bill has increased abnormally. At this time, the leak may have already spread throughout the kitchen, which poses a great safety hazard.

[0005] This utility model is achieved through the following technical solution: A gas meter metering fault auxiliary detection device includes a housing for enclosing the gas meter. The housing has a first through hole for a gas pipeline to pass through. An installation component is fixedly connected to the first through hole. The installation component is used to seal and fix the housing to the gas pipeline. The housing also has a second through hole, which communicates with a sleeve. The sleeve is fixedly connected to the housing. An observation component for indicating changes in gas pressure inside the housing is installed on the sleeve.

[0006] Furthermore, the observation component includes an elastic airbag, the open end of which is fixedly connected and communicates with the end of the sleeve away from the outer shell.

[0007] Furthermore, the observation assembly includes a piston block slidably connected inside the sleeve and a slide rod fixedly connected to the piston block. The piston block is sealed to the sleeve, and the slide rod extends along the length of the sleeve.

[0008] Furthermore, a limit ring is fixedly connected to the end of the sleeve away from the outer shell.

[0009] Furthermore, the slide bar is provided with scale lines.

[0010] Furthermore, the installation assembly includes a sleeve communicating with the first through hole, one end of the sleeve being fixedly connected to the outer shell, the outer diameter of the gas pipeline being smaller than the inner diameter of the sleeve, and a locking assembly being installed between the gas pipeline and the sleeve.

[0011] Furthermore, the locking assembly includes a nut, and a tapered ring is fixedly connected to the end of the nut away from the sleeve. The inner diameter of the tapered ring gradually decreases in the direction away from the sleeve. The end of the sleeve away from the outer shell is provided with an external thread that matches the nut, and a notch is provided along its length.

[0012] Furthermore, a sealing ring is fixedly connected inside the sleeve.

[0013] The beneficial effects of this utility model are as follows: This gas meter metering fault auxiliary detection device involves placing a casing over the gas meter, allowing the gas pipeline to pass through the first through-hole of the casing and be fixedly connected to the gas meter. The casing is then sealed to the gas pipeline using mounting components. During self-inspection, users can observe the components to determine if a leak has occurred at the gas meter or its connection points inside the casing. Compared to existing technologies, this device allows for easier detection of gas metering faults and leaks by observing the components, thus reducing the speed at which gas leaks into the kitchen and minimizing safety hazards.

[0014] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the use of Embodiment 1 of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the use of Embodiment 1 of this utility model. Figure 2 ; Figure 3 This utility model Figure 2 A magnified view of part A in the image; Figure 4 This utility model Figure 2 A magnified view of part B in the image; Figure 5 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 6 This is a schematic diagram of the structure of the sleeve of this utility model; Figure 7 This is a schematic diagram of the use of Embodiment 2 of this utility model. Figure 1 ; Figure 8 This is a schematic diagram of the use of Embodiment 2 of this utility model. Figure 2 ; Figure 9 This utility model Figure 8 A magnified view of part C; Figure 10 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0016] In the diagram: 1. Gas meter; 2. Housing; 3. Gas pipeline; 4. First through hole; 5. Mounting assembly; 6. Second through hole; 7. Sleeve; 8. Observation assembly; 9. Elastic airbag; 10. Piston block; 11. Slide rod; 12. Limiting ring; 13. Scale line; 14. Sleeve; 15. Locking assembly; 16. Nut; 17. Conical ring; 18. External thread; 19. Notch; 20. Sealing ring; 21. Housing; 22. Cover; 23. Sealing strip. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0022] Example 1: Please see Figure 1-6 This utility model provides a technical solution: a gas meter metering fault auxiliary detection device, including a housing 2 for enclosing a gas meter 1, a first through hole 4 for a gas pipeline 3 to pass through, an installation component 5 fixedly connected to the first through hole 4, the installation component 5 for sealing and fixing the housing 2 to the gas pipeline 3, a second through hole 6 for communicating with a sleeve 7, the sleeve 7 being fixedly connected to the housing 2, and an observation component 8 for indicating changes in internal gas pressure of the housing 2 installed on the sleeve 7.

[0023] The observation component 8 includes an elastic airbag 9, the open end of which is fixedly connected to and communicates with the end of the sleeve 7 away from the outer shell 2.

[0024] The mounting assembly 5 includes a sleeve 14 communicating with the first through hole 4. One end of the sleeve 14 is fixedly connected to the outer shell 2. The outer diameter of the gas pipeline 3 is smaller than the inner diameter of the sleeve 14. A locking assembly 15 is installed between the gas pipeline 3 and the sleeve 14.

[0025] The locking assembly 15 includes a nut 16, and a tapered ring 17 is fixedly connected to the end of the nut 16 away from the sleeve 14. The inner diameter of the tapered ring 17 gradually decreases in the direction away from the sleeve 14. The end of the sleeve 14 away from the outer shell 2 is provided with an external thread 18 that matches the nut 16, and a notch 19 is provided along its length.

[0026] A sealing ring 20 is fixedly connected inside the sleeve 14.

[0027] The outer casing 2 includes a housing 21 and a cover 22. The housing 21 and the cover 22 are fixedly connected by a snap-fit, and a sealing strip 23 is fixedly connected at the connection between the housing 21 and the cover 22.

[0028] The model number of gas meter 1 can be CG-L-2.5.

[0029] Working principle: The gas meter 1 and its key interfaces are completely enclosed by the outer casing 2, forming a sealed cavity relatively isolated from the outside atmosphere. When a gas leak occurs in the enclosed gas meter 1 or at its connection with the gas pipeline 3, the leaked gas accumulates inside the outer casing 2. The gas accumulated inside the outer casing 2 causes the internal gas pressure to rise. The increased gas pressure is transmitted to the elastic airbag 9 through the second through hole 6 and the sleeve 7. The elastic airbag 9 will expand outward into a spherical shape (the elastic airbag 9 is initially flat).

[0030] When nut 16 is tightened, conical ring 17 is pushed against sleeve 14. Due to the notch 19 at the end of sleeve 14, the compression of conical ring 17 causes the end of sleeve 14 with notch 19 to contract, thereby tightly locking the gas pipeline 3 and fixing the outer shell 2 to the gas pipeline 3. At the same time, sealing ring 20 inside sleeve 14 ensures a static seal between the pipeline and sleeve 14.

[0031] Instructions for use: Place the housing 21 and cover 22 over the gas meter 1, allowing the gas pipeline 3 to pass through the first through hole 4 of the sleeve 14 and be fixedly connected to the gas meter 1. The housing 21 and cover 22 are snap-fitted together and sealed. Then tighten the nut 16 onto the sleeve 14. The nut 16 pushes the conical ring 17 to press the end of the sleeve 14 with the notch 19, causing the end of the sleeve 14 with the notch 19 to contract and lock onto the gas pipeline 3, thus sealing the sleeve 14 with the gas pipeline 3.

[0032] During self-inspection, users should directly observe the state of the elastic airbag 9. If the airbag changes from a flat shape to a spherical shape, it indicates a leak in the gas meter 1 or interface inside the outer casing 2.

[0033] Technical benefits: Compared with existing technologies, for gas meter metering fault detection and leak investigation, the shape of the gas bladder can be observed to determine whether a gas leak has occurred and caused a metering fault. It also slows down the speed at which gas leaks into the kitchen, reducing the safety hazards caused by gas leaks.

[0034] Example 2: Please see Figure 7-10 The difference between this embodiment and the previous embodiment is that the observation component 8 includes a piston block 10 slidably connected in the sleeve 7 and a slide rod 11 fixedly connected to the piston block 10. The piston block 10 is sealed to the sleeve 7, and the slide rod 11 extends along the length of the sleeve 7.

[0035] The end of the sleeve 7 away from the outer shell 2 is fixedly connected to a limiting ring 12.

[0036] The slide bar 11 is provided with scale lines 13.

[0037] Working principle: When positive pressure is generated inside the housing 21 due to leakage, this pressure acts on the piston block 10. The piston block 10 is sealed to the inner wall of the sleeve 7. Driven by the gas pressure inside the housing 21, the piston block 10 will move the slide rod 11 outward from the sleeve 7. The moving distance of the slide rod 11 is proportional to the gas pressure inside the housing 21. The scale line 13 on the slide rod 11 can quantify the degree of leakage, making it easy for users to detect in time. The function of the limiting ring 12 is to prevent the piston block 10 and the slide rod 11 from disengaging from the sleeve 7, thus slowing down the rate at which gas leaks into the kitchen.

[0038] Instructions for use: Place the housing 21 and cover 22 over the gas meter 1, allowing the gas pipeline 3 to pass through the first through hole 4 of the sleeve 14 and be fixedly connected to the gas meter 1. The housing 21 and cover 22 are snap-fitted together and sealed. Then tighten the nut 16 onto the sleeve 14. The nut 16 pushes the conical ring 17 to press the end of the sleeve 14 with the notch 19, causing the end of the sleeve 14 with the notch 19 to contract and lock onto the gas pipeline 3, thus sealing the sleeve 14 with the gas pipeline 3.

[0039] When users perform self-checks, they can read the displacement indicated by the scale line 13 on the slide bar 11. When the slide bar 11 moves, it indicates that there is a leak in the gas meter 1 or interface inside the housing 2. The severity of the leak can also be roughly judged based on the displacement of the slide bar 11.

[0040] Technical benefits: Compared with existing technologies, for gas meter metering fault detection and leak investigation, the displacement of the slide bar 11 can be directly observed to determine whether a gas leak has occurred and caused a metering fault. It also slows down the speed at which gas leaks into the kitchen, reducing the safety hazards caused by gas leaks.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A gas meter metering fault auxiliary detection device, comprising a housing (2) for enclosing the gas meter (1), characterized in that: The outer shell (2) has a first through hole (4) for the gas pipeline (3) to pass through. An installation component (5) is fixedly connected to the first through hole (4). The installation component (5) is used to seal and fix the outer shell (2) to the gas pipeline (3). The outer shell (2) also has a second through hole (6). The second through hole (6) is connected to a sleeve (7). The sleeve (7) is fixedly connected to the outer shell (2). An observation component (8) for indicating the change of gas pressure inside the outer shell (2) is installed on the sleeve (7).

2. The auxiliary detection device for gas meter metering faults according to claim 1, characterized in that: The observation component (8) includes an elastic airbag (9), the open end of which is fixedly connected and communicates with the end of the sleeve (7) away from the outer shell (2).

3. The auxiliary detection device for gas meter metering faults according to claim 1, characterized in that: The observation assembly (8) includes a piston block (10) slidably connected inside the sleeve (7) and a slide rod (11) fixedly connected to the piston block (10). The piston block (10) is sealed to the sleeve (7), and the slide rod (11) extends along the length of the sleeve (7).

4. The auxiliary detection device for gas meter metering faults according to claim 3, characterized in that: A limiting ring (12) is fixedly connected to the end of the sleeve (7) away from the outer shell (2).

5. The auxiliary detection device for gas meter metering faults according to claim 3, characterized in that: The slide bar (11) is provided with scale lines (13).

6. The auxiliary detection device for gas meter metering faults according to claim 1, characterized in that: The mounting assembly (5) includes a sleeve (14) communicating with the first through hole (4). One end of the sleeve (14) is fixedly connected to the outer shell (2). The outer diameter of the gas pipeline (3) is smaller than the inner diameter of the sleeve (14). A locking assembly (15) is installed between the gas pipeline (3) and the sleeve (14).

7. The auxiliary detection device for gas meter metering faults according to claim 6, characterized in that: The locking assembly (15) includes a nut (16), and a tapered ring (17) is fixedly connected to the end of the nut (16) away from the sleeve (14). The inner diameter of the tapered ring (17) gradually decreases in the direction away from the sleeve (14). The end of the sleeve (14) away from the outer shell (2) is provided with an external thread (18) that matches the nut (16), and a notch (19) is provided along its length.

8. The auxiliary detection device for gas meter metering faults according to claim 6, characterized in that: A sealing ring (20) is fixedly connected inside the sleeve (14).

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