Gas meter with filter element convenient to replace

Abstract

The gas meter comprises a device shell, a flow direction identification groove is formed in the top end of the device shell, a gas inlet pipe is fixedly connected to the left side of the device shell, and an exhaust pipe is fixedly connected to the right side of the device shell; the display screen is fixedly mounted on the front side of the device shell; the filtering assembly is arranged at the bottom of the inner side of the device shell; and the gas flow meter is fixedly mounted on the inner side of the device shell. Compared with the prior art, the gas filter has the advantages that impurities in gas can be filtered, and the filter element is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of gas meters, in particular to a gas meter that is convenient for replacing a filter element. Background Art

[0002] With the rapid development of clean and efficient energy such as natural gas, natural gas is entering thousands of households, and more and more urban residents are starting to use natural gas. And the metering and settlement of natural gas consumption is an essential step in the use of natural gas.

[0003] However, the patents in the prior art have the following several disadvantages:

[0004] (1) The existing utility model gas meter lacks a replaceable filter component inside. When using gas, the gas upstream of the gas meter will carry some dust, rust slag or other particulate matter. If these impurities are not filtered and cleaned, it will cause irreversible damage to components such as the gas flowmeter inside the gas meter, resulting in a reduced service life of the gas meter. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a gas meter that can filter impurities in gas and is convenient for replacing the filter element.

[0006] To solve the above problems, the technical solution of the utility model is: a gas meter that is convenient for replacing a filter element, including:

[0007] A device housing, a flow direction identification groove is opened at the top of the device housing, an intake pipe is fixedly connected to the left side of the device housing, and an exhaust pipe is fixedly connected to the right side of the device housing;

[0008] A display screen, which is fixedly installed on the front side of the device housing;

[0009] A filter component, which is arranged at the bottom inside the device housing;

[0010] A gas flowmeter, which is fixedly installed inside the device housing.

[0011] Further, the filter component includes:

[0012] A filter tank, which is fixedly connected to the bottom end inside the device housing. An exhaust chamber is opened at the top of the filter tank, a filter chamber is opened at the bottom of the filter tank, and the filter chamber is fixedly connected to the intake pipe;

[0013] A connecting pipe, which is fixedly connected between the exhaust chamber and the gas flowmeter;

[0014] Sealing ring 1, which is fixedly connected to the inner side of the filter tank. Sealing ring 1 separates the exhaust chamber and the filter chamber. An extrusion groove 1 is formed at the bottom end of sealing ring 1, and a rubber sealing ring 1 is stored inside the extrusion groove 1;

[0015] Sealing ring 2, which is fixedly connected to the inner bottom wall of the filter chamber. An extrusion groove 2 is formed at the bottom end of sealing ring 2, and a rubber sealing ring 2 is stored inside the extrusion groove 2;

[0016] Installation base, which is slidably connected to the inner bottom of the filter tank. A filter element is fixedly connected to the top end of the installation base. An installation ring is fixedly connected to the top end of the filter element. A sliding groove is formed inside the installation base. A limiting shaft is fixedly connected inside the sliding groove. A bolt is slidably connected inside the sliding groove. Slots adapted to the bolts are formed on both sides of the bottom end of the filter tank. A push button is fixedly connected to the bottom end of the bolt. A spring is sleeved outside the limiting shaft, and the spring is fixedly connected between the bolt and the sliding groove.

[0017] Further, the gas flow meter is fixedly connected to the exhaust pipe.

[0018] Further, the sliding groove is square, the bolt is square and will not rotate when sliding in the sliding groove, and the bolt is slidably connected to the limiting shaft.

[0019] Further, the spring pushes the bolt to slide and insert into the slots formed on both sides of the bottom end of the filter tank.

[0020] The advantages of the present utility model compared with the existing technology are as follows:

[0021] (1) The gas meter with a filter element that is convenient to replace according to the present utility model is provided with a filter assembly, which can effectively filter and clean the impurities in the gas upstream of the gas meter, prevent the impurities from flowing into components such as the gas flow meter, greatly improve the service life of the gas meter, and there are multiple sealing structures inside the filter assembly and a quick-release structure at the bottom of the filter assembly, saving the time for applying and removing the sealant, making the installation and disassembly of the filter element more convenient and fast. Description of the Drawings

[0022] Figure 1 is the three-dimensional Figure 1 .

[0023] Figure 2 is the three-dimensional Figure 2 .

[0024] Figure 3 is the cross-sectional view of the gas meter with a filter element that is convenient to replace according to the present utility model.

[0025] As shown in the figure: 1. Device housing; 2. Intake pipe; 3. Exhaust pipe; 4. Display screen; 5. Filter assembly; 501. Filter tank; 502. Exhaust chamber; 503. Filter chamber; 504. Connecting pipe; 505. Sealing ring 1; 506. Extrusion groove 1; 507. Rubber sealing ring 1; 508. Sealing ring 2; 509. Extrusion groove 2; 510. Rubber sealing ring 2; 511. Installation base; 512. Filter element; 513. Installation ring; 514. Slide groove; 515. Limit shaft; 516. Bolt; 517. Push button; 518. Spring; 6. Gas flow meter. Detailed implementation mode

[0026] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are only examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1:

[0029] As Figures 1 to 3 shown, a gas meter that facilitates the replacement of the filter element includes: a device housing 1, a flow direction identification groove is opened at the top of the device housing 1, an intake pipe 2 is fixedly connected to the left side of the device housing 1, and an exhaust pipe 3 is fixedly connected to the right side of the device housing 1; a display screen 4, the display screen 4 is fixedly installed on the front side of the device housing 1; a filter assembly 5, the filter assembly 5 is arranged at the inner bottom of the device housing 1; a gas flow meter 6, the gas flow meter 6 is fixedly installed inside the device housing 1, and the gas flow meter 6 is fixedly connected to the exhaust pipe 3.

[0030] The filtering component 5 includes: a filtering tank 501, a connecting pipe 504, a first sealing ring 505, a second sealing ring 508 and a mounting base 511. The filtering tank 501 is fixedly connected to the inner bottom end of the device housing 1. An exhaust chamber 502 is provided at the top end of the filtering tank 501, and a filtering chamber 503 is provided at the bottom of the filtering tank 501. The filtering chamber 503 is fixedly connected to the intake pipe 2. The connecting pipe 504 is fixedly connected between the exhaust chamber 502 and the gas flowmeter 6. The first sealing ring 505 is fixedly connected to the inner side of the filtering tank 501. The first sealing ring 505 separates the exhaust chamber 502 and the filtering chamber 503. A first extrusion groove 506 is provided at the bottom end of the first sealing ring 505, and a first rubber sealing ring 507 is stored inside the first extrusion groove 506. The second sealing ring 508 is fixedly connected to the inner bottom wall of the filtering chamber 503. A second extrusion groove 509 is provided at the bottom end of the second sealing ring 508, and a second rubber sealing ring 510 is stored inside the second extrusion groove 509. The mounting base 511 is slidably connected to the inner bottom of the filtering tank 501. A filter element 512 is fixedly connected to the top end of the mounting base 511. An installation ring 513 is fixedly connected to the top end of the filter element 512. A chute 514 is provided inside the mounting base 511. A limiting shaft 515 is fixedly connected inside the chute 514. A bolt 516 is slidably connected inside the chute 514. Slots adapted to the bolt 516 are provided on both sides of the bottom end of the filtering tank 501. A push button 517 is fixedly connected to the bottom end of the bolt 516. A spring 518 is sleeved outside the limiting shaft 515. The spring 518 is fixedly connected between the bolt 516 and the chute 514. The chute 514 is square, and the bolt 516 is square and will not rotate when sliding inside the chute 514. The bolt 516 is slidably connected to the limiting shaft 515. The spring 518 pushes the bolt 516 to slide and insert into the slots provided on both sides of the bottom end of the filtering tank 501.

[0031] In specific use, first close the main gas valve to ensure that the gas supply stops. Open the valve downstream of the exhaust pipe 3 to release the pressure in the pipeline, so that the pressure in the filtering tank 501 returns to stability. After the display screen 4 shows that the gas flow detected by the gas flowmeter 6 stops changing, the filter element 512 can be disassembled and replaced.

[0032] Push the push button 517, so that the push button 517 drives the bolt 516 to be taken out from the slots on both sides of the bottom end of the filtering tank 501. At this time, the first rubber sealing ring 507 rebounds and presses down the installation ring 513, and the second rubber sealing ring 510 rebounds and presses down the mounting base 511, so that the whole filter element 512 moves downward and is taken out from the filtering tank 501.

[0033] Replace with a new filter element 512. While keeping the push button 517 in the pushed state, align the mounting base 511 with the bottom end of the filter tank 501 and insert it forcefully upward. The mounting ring 513 squeezes the rubber seal ring I 507, so that the outside and inside of the filter element 512 are sealed off. The mounting base 511 squeezes the rubber seal ring II 510, so that the filter chamber 503 is sealed off from the outside of the device housing 1. At this time, hold the bottom end of the mounting base 511 and release the push button 517. The spring 518 supports and pushes the bolt 516 to insert it into the slot, completing the locking of the mounting base 511.

[0034] Open the valves upstream and downstream of the gas meter and use the gas. The gas flowmeter 6 will detect the amount of gas used and display it on the display screen 4 for easy viewing by personnel.

[0035] Both the gas flowmeter and the display screen are existing products on the market, and their connection methods and control methods are all prior arts, which will not be elaborated here.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas meter with a conveniently replaceable filter element, characterized in that, Including: A device housing (1), at the top of the device housing (1) there is a flow direction identification groove, on the left side of the device housing (1) there is a fixed connection of an intake pipe (2), and on the right side of the device housing (1) there is a fixed connection of an exhaust pipe (3); A display screen (4), the display screen (4) is fixedly installed on the front side of the device housing (1); A filtering component (5), the filtering component (5) is arranged at the inner bottom of the device housing (1); A gas flow meter (6), the gas flow meter (6) is fixedly installed inside the device housing (1).

2. The gas meter according to claim 1, which is convenient for replacing the filter element, is characterized in that: The filtering component (5) includes: A filtering tank (501), the filtering tank (501) is fixedly connected to the inner bottom end of the device housing (1), at the top of the filtering tank (501) there is an exhaust chamber (502), at the bottom of the filtering tank (501) there is a filtering chamber (503), and the filtering chamber (503) is fixedly connected to the intake pipe (2); A connecting pipe (504), the connecting pipe (504) is fixedly connected between the exhaust chamber (502) and the gas flow meter (6); A first sealing ring (505), the first sealing ring (505) is fixedly connected inside the filtering tank (501), the first sealing ring (505) separates the exhaust chamber (502) and the filtering chamber (503), at the bottom end of the first sealing ring (505) there is a first extrusion groove (506), and inside the first extrusion groove (506) there is a storage of a first rubber sealing ring (507); A second sealing ring (508), the second sealing ring (508) is fixedly connected to the bottom inner wall of the filtering chamber (503), at the bottom end of the second sealing ring (508) there is a second extrusion groove (509), and inside the second extrusion groove (509) there is a storage of a second rubber sealing ring (510); An installation base (511), the installation base (511) is slidably connected to the inner bottom of the filtering tank (501), at the top of the installation base (511) there is a fixed connection of a filter element (512), at the top of the filter element (512) there is a fixed connection of an installation ring (513), inside the installation base (511) there is a chute (514), inside the chute (514) there is a fixed connection of a limiting shaft (515), inside the chute (514) there is a slidable connection of a bolt (516), on both sides of the bottom end of the filtering tank (501) there are slots adapted to the bolt (516), at the bottom end of the bolt (516) there is a fixed connection of a push button (517), and outside the limiting shaft (515) there is a spring (518) sleeved, and the spring (518) is fixedly connected between the bolt (516) and the chute (514).

3. A gas meter with a conveniently replaceable filter element according to claim 1, characterized in that: The gas flow meter (6) is fixedly connected to the exhaust pipe (3).

4. A gas meter with a conveniently replaceable filter element according to claim 2, characterized in that: The chute (514) is square, the bolt (516) is square and will not rotate when sliding in the chute (514), and the bolt (516) is slidably connected to the limiting shaft (515).

5. A gas meter with a conveniently replaceable filter element according to claim 2, characterized in that: The spring (518) pushes the bolt (516) to slide and insert into the slots opened on both sides of the bottom end of the filtering tank (501).

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