Novel anti-toppling gas meter

Abstract

The utility model relates to a novel anti-toppling gas meter which comprises a meter shell, a metering chamber and a sliding valve assembly, the metering chamber is installed on the lower portion in the meter shell, the sliding valve assembly is connected to the upper portion of the metering chamber, the top of the meter shell is fixedly connected with a gas inlet and a gas outlet, and a pipeline is connected between the gas outlet and the sliding valve assembly. The pipeline is fixedly connected with an electric control valve, the top in the meter shell is fixedly connected with a multidirectional anti-inclination controller, and the anti-inclination controller is electrically connected with the electric control valve. According to the novel anti-toppling gas meter, the anti-toppling controller is used for controlling the electric control valve, when the gas meter tilts, the anti-toppling controller controls the opening and closing state of the gas outlet, and when the gas meter tilts, a gravity field changes, a valve deck and a valve seat in the gas meter displace, and the gravity sealing principle is damaged, the anti-toppling controller controls the opening and closing state of the gas outlet. And the economic loss of a gas supply party caused by less metering or even no metering due to the fact that gas leaks to an outlet without a metering chamber is avoided.

Description

Technical Field

[0001] The utility model relates to a gas meter, in particular to a novel anti-dumping gas meter. Background Art

[0002] At present, diaphragm gas meters are widely used. The valve cover and valve seat of the gas meter are important components of the gas meter. Its function is to distribute the rotational or reciprocating motion generated by the gas from the inlet to the metering chamber and then from the metering chamber to the outlet to the valve cover. The sealing between the valve cover and the valve seat determines the metering accuracy of the gas meter.

[0003] In current technology, the seal between the valve cover and the valve seat relies on the gravity of the valve cover. When the gas meter is tilted 30 degrees, the gravity field changes, the valve cover and the valve seat inside the gas meter are displaced, and the gravity sealing principle is destroyed. Part of the gas leaks to the outlet without passing through the metering chamber, resulting in under-metering or even no metering, causing economic losses to the gas supplier. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of anti-dumping gas meter, which is used to solve the problem that when the existing diaphragm gas meter is tilted 30°, the gravity field changes, the valve cover and valve seat inside the gas meter are displaced, the gravity sealing principle is destroyed, and part of the gas leaks to the outlet without passing through the metering chamber, resulting in under-metering or even no metering, causing economic losses to the gas supplier.

[0005] In order to solve the above problems, the utility model provides a new anti-dumping gas meter, including a meter case, a metering chamber and a slide valve assembly. The metering chamber is installed in the lower part of the meter case, the slide valve assembly is connected above the metering chamber, the top of the meter case is fixedly connected to the gas inlet and the gas outlet, a pipeline is connected between the gas outlet and the slide valve assembly, an electric control valve is fixedly connected to the pipeline, a multi-directional anti-dumping controller is fixedly connected to the top of the meter case, and the anti-dumping controller is electrically connected to the electric control valve.

[0006] The novel anti-dumping gas meter provided by the utility model also has the following technical features:

[0007] Furthermore, the anti-tilt controller includes two slideways that intersect in the vertical and horizontal directions, wherein a gravity ball that rolls obliquely is provided in the slideway, and contact-activated tilt switches are provided at both ends of the slideway.

[0008] Furthermore, both ends of the slide are fixedly connected with supports, the tilt switch is fixed on the support, a compression spring which can be compressed by a gravity ball is sleeved on the support, and one end of the compression spring is fixedly connected to the slide.

[0009] Furthermore, the other end of the compression spring is fixedly connected to a push ring, a sleeve is fixedly connected to the push ring, the sleeve is slidably connected to the support, and the push ring is in contact with the gravity ball.

[0010] Further, the chute is provided with a groove at the longitudinal-lateral intersection position, and the side wall of the chute is connected in a round angle at the longitudinal-lateral intersection position.

[0011] Further, the chute is provided with a groove at the longitudinal-lateral intersection position, and the side wall of the chute is connected in a round angle at the longitudinal-lateral intersection position.

[0012] Further, the chute is provided with a groove at the longitudinal-lateral intersection position, and the side wall of the chute is connected in a round angle at the longitudinal-lateral intersection position.

[0013] The novel anti-toppling gas meter has the following beneficial effects: the anti-toppling controller controls the electric control valve, the opening and closing state of the gas outlet is controlled when the gas meter is tilted, when the gravity field changes due to the tilting of the gas meter, the displacement of the valve cover and the valve seat in the gas meter occurs, and the gravity sealing principle is damaged, thereby avoiding the leakage of the gas from the metering chamber to the outlet to cause the under-metering or even no metering, and causing the economic loss of the gas supplier. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view and sectional view of the novel anti-toppling gas meter of the utility model embodiment;

[0015] Figure 2 It is a front view and sectional view of the novel anti-toppling gas meter of the utility model embodiment;

[0016] Figure 3 It is a front view and sectional view of the novel anti-toppling gas meter of the utility model embodiment; Figure 2 It is an enlarged view of node A;

[0017] Figure 4 It is a front view and sectional view of the novel anti-toppling gas meter of the utility model embodiment;

[0018] (1 - meter shell, 2 - metering chamber, 3 - slide valve assembly, 4 - gas inlet, 5 - gas outlet, 6 - pipeline, 7 - electric control valve, 8 - anti-toppling controller, 9 - chute, 10 - gravity ball, 11 - tilting switch, 12 - support, 13 - compression spring, 14 - push ring, 15 - sleeve, 16 - groove, 17 - inverted switch, 71 - valve body, 72 - valve seat, 73 - valve core, 74 - power cavity, 75 - electric push rod) DETAILED DESCRIPTION

[0019] Hereinafter, the utility model will be described in detail with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0020] As Figures 1 to 4In the embodiment of the new anti-dump gas meter of the present invention shown, the new anti-dump gas meter includes a meter case 1, a metering chamber 2 and a slide valve assembly 3. The metering chamber 2 is installed in the lower part of the meter case 1, and the slide valve assembly 3 is connected above the metering chamber 2. The top of the meter case 1 is fixedly connected to a gas inlet 4 and a gas outlet 5. A pipe 6 is connected between the gas outlet 5 and the slide valve assembly 3, and an electric-controlled valve 7 is fixedly connected to the pipe 6. A multi-directional anti-dump controller 8 is fixedly connected to the top of the meter case 1, and the anti-dump controller 8 is electrically connected to the electric-controlled valve 7.

[0021] Specifically, the gas enters the meter case 1 through the gas inlet 4 and is affected by the pressure difference between the inside and outside of the metering chamber 2. The gas is sucked into the opened inlet valve on the slide valve assembly 3 and enters the metering chamber 2. The left and right metering chambers 2 alternately take in and out of the gas, so that the inlet on the slide valve assembly 3 is alternately opened and closed. A fixed amount of gas is exhaled through the metering chamber 2 each time for metering. When the gas meter is tilted, the slide valve assembly 3 is not sealed tightly and the gas will be affected by the pressure difference and flow out from the gas outlet 5 without passing through the metering chamber 2. The gas meter tilt anti-tilt controller 8 controls the electric control valve 7 on the pipeline 6 to close, and the gas outlet 5 no longer discharges gas. The anti-tilt controller 8 controls the electric control valve 7 to open when the gas meter is straightened. Regardless of whether the gas meter is tilted left or right or front or back, the control of the electric control valve 7 can be completed.

[0022] In one embodiment of the present application, preferably, the anti-tilt controller 8 includes two slides 9 that cross each other in the longitudinal and transverse directions, and a gravity ball 10 that rolls tiltedly is provided in the slide 9. A contact-activated tilt switch 11 is provided at both ends of the slide 9. When the gas meter is tilted, the gravity ball 10 rolls in the slide 9 and touches the tilt switch 11 in the slide 9 to control the electric control valve 7 to close. After the gas meter is straightened, the gravity ball 10 disengages from the tilt switch 11 and the electric control valve 7 opens.

[0023] In one embodiment of the present application, preferably, both ends of the slide 9 are fixedly connected to a support 12, and the tilt switch 11 is fixed on the support 12. A compression spring 13 that can be compressed by the gravity ball 10 is provided on the support 12. One end of the compression spring 13 is fixedly connected to the slide 9, and is used to tilt the gas meter to a certain angle. When the gravity of the gravity ball 10 overcomes the elastic force of the compression spring 13, the tilt switch 11 will be touched to start the electric control valve 7, thereby avoiding interruption of supply caused by tilted installation or accidental tilt.

[0024] In one embodiment of the present application, preferably, the other end of the compression spring 13 is fixedly connected to a push ring 14, and a sleeve 15 is fixedly connected to the push ring 14. The sleeve 15 is slidably connected to the support 12, and the push ring 14 is in contact with the gravity ball 10 to avoid displacement deviation of the compression spring 13 when it contracts and pops out, which affects the accuracy.

[0025] In one embodiment of the present application, preferably, the slide 9 is provided with a groove 16 at the intersection of the longitudinal and transverse directions, and the side walls of the slide 9 are smoothly connected with rounded corners at the intersection of the longitudinal and transverse directions, so that the gravity ball 10 can return to the center position more easily when the gas meter is straightened. The rounded and smooth connection at the intersection of the longitudinal and transverse directions is provided to facilitate the conversion of the gravity ball 10 in the transverse and longitudinal slides 9, thereby increasing sensitivity.

[0026] In one embodiment of the present application, preferably, a contact-activated inversion switch 17 is fixedly connected to the top of the slide 9 corresponding to the groove 16, and the inversion switch 17 is electrically connected to the electric control valve 7 to prevent the gas meter from being used in an inverted state without tilting.

[0027] In one embodiment of the present application, preferably, the electrically controlled valve 7 includes a valve body 71, one end of the valve body 71 is fixedly connected to a valve seat 72, a sliding valve core 73 is provided in the valve body 71, a power chamber 74 is provided in the valve body 71, an electric push rod 75 is installed in the power chamber 74, and the push rod of the electric push rod 75 is fixedly connected to the valve core 73, and is used to receive electrical signals from the tilt switch 11 and the inversion switch 17 and to open and close.

[0028] In summary, the new anti-dumping gas meter in the above embodiment of the present invention, specifically, when the gas meter is slightly tilted or installed at an angle, the gravity ball 10 is affected by the elastic force of the compression spring 13 to compress the compression spring 13 to a limited distance and cannot contact the tilt switch 11. When the gas meter is tilted at a large angle, the gravity of the gravity ball 10 overcomes the elastic force of the compression spring 13, compressing the compression spring 13 to the position of the support 12, and the gravity ball 10 contacts the tilt switch 11. The tilt switch 11 triggers the electric push rod 75 device of the electric control valve 7, pushing the valve core 73 and the valve seat 72 to close, thereby disconnecting the gas supply in the pipeline 6. When the gas meter is straightened, the gravity ball 10 slides to the slideway under the elastic force of the compression spring 13. 9 rolls at the center and stays in the groove 16. When the gas meter is inverted without tilt, the gravity ball 10 contacts the inversion switch 17 at the top of the slide 9 corresponding to the groove 16, triggering the electric push rod 75 to close the electric control valve 7. This device uses the gravity ball 10 in the slide 9 to roll in the slide 9 to trigger the tilt switch 11 at the end of the slide 9 to control the electric control valve 7. The action of the compression spring 13 prevents the tilt switch 11 from being easily triggered to affect the normal use of the user. The inversion switch 17 corresponding to the groove 16 prevents the gas meter from being used in an inverted state without tilt, thereby overcoming the economic loss caused by the gas usage not being measured when the gravity seal of the slide valve assembly 3 is damaged.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A novel anti-dumping gas meter, comprising a meter case, a metering chamber, and a slide valve assembly, wherein the metering chamber is mounted in the lower portion of the meter case, the slide valve assembly is connected above the metering chamber, a gas inlet and a gas outlet are fixedly connected to the top of the meter case, and a pipeline is connected between the gas outlet and the slide valve assembly, characterized in that: An electric-controlled valve is fixedly connected to the pipeline, and a multi-directional anti-tilt controller is fixedly connected to the top of the housing. The anti-tilt controller is electrically connected to the electric-controlled valve.

2. The novel anti-dumping gas meter according to claim 1 is characterized in that: The anti-tilt controller comprises two slideways that intersect in the vertical and horizontal directions. The slideways are provided with gravity balls that roll obliquely. Both ends of the slideways are provided with tilt switches that are opened by contact.

3. The novel anti-dumping gas meter according to claim 2 is characterized in that: Both ends of the slide are fixedly connected with supports, the tilt switch is fixed on the support, a compression spring which can be compressed by the gravity ball is sleeved on the support, and one end of the compression spring is fixedly connected to the slide.

4. The novel anti-dumping gas meter according to claim 3 is characterized in that: The other end of the compression spring is fixedly connected to a push ring, a sleeve is fixedly connected to the push ring, the sleeve is slidably connected to the support, and the push ring is in contact with the gravity ball.

5. The novel anti-dumping gas meter according to claim 4 is characterized in that: The slideway is provided with grooves at the intersection of the longitudinal and transverse directions, and the side walls of the slideway are smoothly connected with rounded corners at the intersection of the longitudinal and transverse directions.

6. The novel anti-dumping gas meter according to claim 5 is characterized in that: A contact-activated inversion switch is fixedly connected to the top of the slideway corresponding to the groove, and the inversion switch is electrically connected to the electric control valve.

7. The novel anti-dumping gas meter according to claim 1 is characterized in that: The electrically controlled valve includes a valve body, one end of which is fixedly connected to a valve seat, a sliding valve core is provided in the valve body, a power chamber is provided in the valve body, an electric push rod is installed in the power chamber, and the push rod of the electric push rod is fixedly connected to the valve core.

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