An intelligent gas meter that prevents reverse conduction

Abstract

The present invention discloses an intelligent gas meter with anti-reverse conduction, which relates to the technical field of gas meters and includes a starting mechanism, wherein the starting mechanism includes an elastic retractable rope, a filter plate, a pressure sensor, and a controller. A slide groove is provided on the inner wall of the air inlet pipe, one end of the elastic retractable rope is fixedly connected to the side wall of the slide groove away from the shell, and the other end is connected to the filter plate. The shell extends in the direction close to the air inlet pipe to form a lap platform, and the pressure sensor is installed on the side of the lap platform close to the air inlet pipe. The filter plate can be abutted against the pressure sensor, and the output end of the pressure sensor is connected to the input end of the controller, and the output end of the controller is connected to the input end of the ultrasonic component. If the ultrasonic component is started but the controller does not receive the pressure sensor signal, it is suspected that the gas meter may have a reverse conduction phenomenon, so the controller drives the alarm to alarm to prompt the staff to check to avoid affecting the metering accuracy and the performance of the gas meter.

Description

Technical Field

[0001] The present invention relates to the technical field of gas meters, and more particularly to an intelligent gas meter capable of preventing reverse conduction. Background Art

[0002] The normal measurement of gas meters is directional, but if they are not installed in the indicated direction or are installed in the reverse direction, it will lead to inaccurate or impossible measurement, resulting in measurement losses. At the same time, in life, the water pipe of the water heater is often accidentally connected to the gas meter outlet pipe, causing water to enter the gas meter and gas pipeline, resulting in water seepage and blockage, which requires drainage, causing gas outage, and requiring a lot of drainage work before ventilation can be restored, resulting in great losses.

[0003] At present, most gas meters on the market do not have the function of preventing reverse conduction. Even if they have such function, the installation of such devices or mechanisms will have some performance impact on the gas meter itself. For example, when there is no airflow, the channel is often in a closed state. Normal ventilation requires airflow to push open a valve-like device, which increases the airflow resistance. Some similar devices require installation space, which leads to narrow airflow channels and also increases airflow resistance. In addition, the concealment of the devices or mechanisms is not strong and they are easy to damage. Summary of the invention

[0004] In view of this problem in practical application, the present invention aims to propose an intelligent gas meter that prevents reverse conduction. The specific scheme is as follows:

[0005] 14. The method of claim 13 wherein the plurality of control members are arranged on a line extending along the length of the gas inlet pipe and the plurality of control members are arranged along the length of the gas inlet pipe. The plurality of control members are arranged along the length of the gas inlet pipe. The plurality of control members are arranged along the length of the gas inlet pipe. The plurality of control members are arranged along the length of the gas inlet pipe.

[0006] Further preferably, the filter plate is arranged with rounded corners near the edge of the chute.

[0007] Further preferably, a plurality of circular grooves are evenly formed on one side of the filter plate close to the slide groove, and automatically rolling balls are arranged in each of the plurality of circular grooves, and the balls abut against the side wall of the slide groove.

[0008] Further preferably, a reinforcement mechanism is provided on the side of the filter plate facing away from the elastic retractable rope, and the reinforcement mechanism includes a connecting rod and a reinforcement plate, one end of the connecting rod is integrally connected to the filter plate, and the other end of the connecting rod is integrally connected to the reinforcement plate, and the reinforcement plate and the filter plate are arranged parallel to each other.

[0009] Further preferably, the side wall of the filter plate abuts against the overlapping platform.

[0010] Further preferably, the filter plate and the reinforcement plate are both mesh structures.

[0011] Further preferably, the overlapping platform is connected by a curved surface filter near the corner of the air intake pipe to form a guide portion.

[0012] Further preferably, an alarm is further included, and the output end of the controller is connected to the input end of the alarm.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) When gas is introduced into the intake pipe, the filter plate is moved in the same direction as the gas flow by the force of the gas, so that the filter plate moves in the direction close to the pressure sensor until the filter plate contacts the pressure sensor. After receiving the pressure signal, the pressure sensor sends a signal to the controller. The controller receives the pressure sensor signal and drives the ultrasonic component to start to count the gas flow. If the ultrasonic component is started but the controller does not receive the pressure sensor signal, it is suspected that the gas meter may have reverse conduction, so the controller drives the alarm to sound an alarm to prompt the staff to check to avoid affecting the measurement accuracy and the performance of the gas meter;

[0015] (2) Four circular grooves are evenly opened on one side of the filter plate close to the slide groove, and each of the four circular grooves is provided with a ball that can roll automatically. The ball abuts against the side wall of the slide groove, and the ball is used to form rolling friction between the filter plate and the inner wall of the intake pipe. This can not only further reduce the mechanical friction between the filter plate and the side wall of the intake pipe, but also improve the flexibility of the filter plate to move along the length direction of the slide groove.

[0016] (3) By providing a reinforcing mechanism, the contact area between the filter plate and the gas is relatively increased. When the gas contacts the reinforcing plate and exerts a force on the reinforcing plate, the reinforcing plate also exerts a force on the filter plate in the same direction to ensure that the filter plate abuts against the pressure sensor when gas is introduced in the correct direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the whole of the embodiment of the present invention;

[0018] Figure 2 It is a schematic sectional view of the present invention highlighting the intake pipe structure;

[0019] Figure 3 is Figure 2 a partial enlarged schematic view of part A in

[0020] Figure 4 It is a system connection diagram of the embodiment of the present invention.

[0021] Reference numerals: 1, housing; 101, intake pipe; 102, outlet pipe; 2, starting mechanism; 201, elastic telescopic rope; 202, filter plate; 203, pressure sensor; 204, controller; 3, chute; 4, lapping platform; 5, fillet; 6, round groove; 7, ball; 8, strengthening mechanism; 801, connecting rod; 802, strengthening plate; 9, guiding part; 10, alarm; 11, ultrasonic component. Detailed implementation manners

[0022] The present invention will be further described in detail below in conjunction with the embodiments and the drawings, but the implementation manners of the present invention are not limited thereto.

[0023] The normal metering of a gas meter is directional. However, if it is not installed in the indicated direction or is installed reversely artificially, it will lead to inaccurate metering or inability to meter, resulting in metering losses. This embodiment proposes an intelligent gas meter with anti-reverse conduction, which effectively prevents the occurrence of reverse conduction phenomena.

[0024] As Figure 1 shown, an intelligent gas meter with anti-reverse conduction includes a housing 1, and an intake pipe 101 and an outlet pipe 102 that are mutually conductive are formed on the housing 1. At the same time, a gas passage is provided inside the housing 1, and an ultrasonic component 11 for monitoring the gas flow is provided on the gas passage. Gas enters the gas passage from the intake pipe 101, and after measuring the gas flow in the gas passage by the way of the ultrasonic component 11 sending signals and receiving signals, the gas is discharged from the side of the outlet pipe 102. The ultrasonic component 11 mentioned in this embodiment is a prior art. For details, reference can be made to the Chinese invention patent with the publication number CN204788525U and the name of an anti-pollution flow channel structure of an ultrasonic flowmeter, so it will not be elaborated here.

[0025] Combined with Figure 2 and Figure 3As shown in the figure, a starting mechanism 2 is provided on the inner wall of the intake pipe 101. The starting mechanism 2 includes an elastic telescopic rope 201, a filter plate 202, a pressure sensor 203, a controller 204, and an alarm 10. The intake pipe 101 is circular tubular, and a chute 3 is provided on the inner wall of the intake pipe 101 along the circumferential direction of the intake pipe 101. One end of the elastic telescopic rope 201 is fixedly connected to the side wall of the chute 3 away from the housing 1, and the other end is connected to the filter plate 202. Among them, the side wall of the filter plate 202 abuts against the bottom of the chute 3, and the edge of the filter plate 202 close to the chute 3 is provided with a rounded corner 5 to reduce the mechanical friction between the filter plate 202 and the side wall of the intake pipe 101 and improve the service life of the filter plate 202. At the same time, four circular grooves 6 are evenly opened on one side of the filter plate 202 close to the chute 3. Ball bearings 7 that can automatically roll are provided in the four circular grooves 6. The ball bearings 7 abut against the side wall of the chute 3. By using the ball bearings 7, a rolling friction is formed between the filter plate 202 and the inner wall of the intake pipe 101, which can not only further reduce the mechanical friction between the filter plate 202 and the side wall of the intake pipe 101, but also improve the flexibility of the filter plate 202 moving along the length direction of the chute 3.

[0026] In this embodiment, a strengthening mechanism 8 is provided on the side of the filter plate 202 away from the elastic telescopic rope 201. The strengthening mechanism 8 includes a connecting rod 801 and a strengthening plate 802. One end of the connecting rod 801 is integrally connected to the filter plate 202, the other end of the connecting rod 801 is integrally connected to the strengthening plate 802, and the strengthening plate 802 and the filter plate 202 are parallel to each other. Preferably, both the filter plate 202 and the strengthening plate 802 are mesh structures. By using the filter plate 202 and the strengthening plate 802, not only can the impurities in the gas introduced from the intake pipe 101 be filtered, but also the introduced gas can be buffered and stabilized.

[0027] The housing 1 extends in the direction close to the intake pipe 101 to form a lapping platform 4. The pressure sensor 203 is installed on the side of the lapping platform 4 close to the intake pipe 101. At the same time, the side wall of the filter plate 202 abuts against the lapping platform 4 to filter the impurities in all the gas entering the intake pipe 101. And the corner of the lapping platform 4 close to the intake pipe 101 is connected by an arc surface filter to form a guiding portion 9. The introduced gas is guided through the guiding portion 9 to enter the gas passage. Combining the filter plate 202, the strengthening plate 802 and the guiding portion 9 can not only efficiently filter the introduced gas, but also have the effect of stabilizing pressure and guiding.

[0028] Combined with Figure 4 As shown in the figure, the output end of the pressure sensor 203 is connected to the input end of the controller 204, the output end of the controller 204 is connected to the input end of the ultrasonic component 11, the output end of the controller 204 is connected to the input end of the alarm 10, and the input end of the controller 204 is connected to the output end of the ultrasonic component 11.

[0029] When gas is introduced into the intake pipe 101, the filter plate 202 moves along the same direction as the gas flow under the action of the gas force, so that the filter plate 202 moves in the direction close to the pressure sensor 203 until the filter plate 202 abuts against the pressure sensor 203. After receiving the pressure signal, the pressure sensor 203 sends a signal to the controller 204, and the controller 204 drives the ultrasonic component 11 to start to count the gas flow. Among them, if the ultrasonic component 11 starts but the controller 204 does not receive the signal from the pressure sensor 203, it is suspected that there may be a reverse conduction phenomenon in the gas meter. Therefore, the controller 204 drives the alarm 10 to give an alarm to prompt the staff to check, so as to avoid affecting the measurement accuracy and the performance of the gas meter.

[0030] By setting the strengthening mechanism 8, the contact area between the filter plate 202 and the gas is relatively increased. When the gas contacts the strengthening plate 802 and generates a force on the strengthening plate 802, the strengthening plate 802 also generates a force in the same direction on the filter plate 202 at the same time, so as to ensure that when gas is introduced and the direction is correct, the filter plate 202 abuts against the pressure sensor 203. It should be particularly noted that in this embodiment, the force of the minimum gas volume can drive the filter plate 202 to abut against the pressure sensor 203.

[0031] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An intelligent gas meter for preventing reverse conduction, comprising a housing (1), an intake pipe (101) and an outlet pipe (102) provided on the housing (1), a gas passage is provided in the housing (1), and an ultrasonic component (11) for monitoring the gas flow is provided on the gas passage, characterized in that, On the inner side wall of the intake pipe (101), a starting mechanism (2) is provided. The starting mechanism (2) includes an elastic telescopic rope (201), a filter plate (202), a pressure sensor (203), and a controller (204). A chute (3) is formed on the inner side wall of the intake pipe (101). One end of the elastic telescopic rope (201) is fixedly connected to the side wall of the chute (3) away from the housing (1), and the other end is connected to the filter plate (202). The side wall of the filter plate (202) abuts against the bottom of the chute (3). The housing (1) extends in the direction close to the intake pipe (101) to form a lapping platform (4). The pressure sensor (203) is installed on the side of the lapping platform (4) close to the intake pipe (101). The filter plate (202) can be arranged to abut against the pressure sensor (203). The output end of the pressure sensor (203) is connected to the input end of the controller (204), the output end of the controller (204) is connected to the input end of the ultrasonic component (11), and the input end of the controller (204) is connected to the output end of the ultrasonic component (11); When gas enters the intake pipe, the filter plate (202) moves in the same direction as the gas flow under the action of the gas force, so that the filter plate (202) moves in the direction close to the pressure sensor (203) until the filter plate (202) abuts against the pressure sensor (203). After the pressure sensor (203) receives the pressure signal, it sends a signal to the controller (204). The controller (204) drives the ultrasonic component to start to count the gas flow. Among them, if the ultrasonic component (11) starts but the controller (204) does not receive the signal from the pressure sensor (203), there may be a reverse conduction phenomenon in the gas meter. Therefore, the controller (204) drives the alarm to give an alarm to prompt the staff to check, so as to avoid affecting the measurement accuracy and the performance of the gas meter.

2. The intelligent gas meter for preventing reverse conduction according to claim 1, characterized in that The edge of the filter plate (202) close to the chute (3) is provided with a rounded corner (5).

3. The intelligent gas meter for preventing reverse conduction according to claim 1, characterized in that, A plurality of circular grooves (6) are evenly formed on one side of the filter plate (202) close to the chute (3). Automatic rolling balls (7) are arranged in the plurality of circular grooves (6), and the balls (7) abut against the side wall of the chute (3).

4. The intelligent gas meter for preventing reverse conduction according to claim 1, characterized in that, A strengthening mechanism (8) is arranged on the side of the filter plate (202) away from the elastic telescopic rope (201). The strengthening mechanism (8) includes a connecting rod (801) and a strengthening plate (802). One end of the connecting rod (801) is integrally connected to the filter plate (202), the other end of the connecting rod (801) is integrally connected to the strengthening plate (802), and the strengthening plate (802) is arranged parallel to the filter plate (202).

5. The intelligent gas meter for preventing reverse conduction according to claim 4, characterized in that, The side wall of the filter plate (202) abuts against the lapping platform (4).

6. The intelligent gas meter for preventing reverse conduction according to claim 4, characterized in that, Both the filter plate (202) and the strengthening plate (802) are of a mesh structure.

7. The intelligent gas meter for preventing reverse conduction according to claim 1, wherein It further includes an alarm (10), and an output end of the controller (204) is connected to an input end of the alarm (10).

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