Ultrasonic gas meter flow channel assembly and ultrasonic gas meter

Abstract

The utility model relates to the field of ultrasonic gas meters, and discloses an ultrasonic gas meter runner assembly and an ultrasonic gas meter, the ultrasonic gas meter runner assembly comprises a gas outlet pipe, the left surface of the bottom end of the gas outlet pipe is in contact with a gas runner, the front surface of the right end of the gas runner is provided with an installation assembly, and the front surface of the right end of the gas runner is provided with a second through groove; and the mounting assembly comprises a sliding plate, the sliding plate is slidably connected to the front surface of the right end of the gas flow channel, a first through groove is formed in the top end of the front surface of the sliding plate, a sliding rod is slidably connected to the inner wall of the first through groove, and the sliding rod is slidably connected to the inner wall of the second through groove. According to the utility model, through the arrangement of the mounting assembly, the gas flow channel can be mounted only by sleeving the gas flow channel on the outer wall of the right end of the gas outlet pipe without rotating a plurality of groups of bolts when the gas flow channel is mounted, so that the mounting is quick and convenient, and meanwhile, the sealing performance can be ensured through the matching of a sealing ring and a sealing groove.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic gas meters, and in particular to an ultrasonic gas meter flow channel assembly and an ultrasonic gas meter. Background Technology

[0002] As an advanced gas metering device, the ultrasonic gas meter measures gas flow using ultrasonic technology. The gas flow channel is one of the core structural components of the ultrasonic gas meter, on which transducer probes, rectifier plates, and mounting brackets are installed. However, currently, most of these components are fixed with screws, a cumbersome process that leads to low production efficiency and hinders large-scale, automated production. This, in turn, impacts the large-scale promotion and sales of ultrasonic products in China.

[0003] A search revealed Chinese Patent Publication No. CN216746262U, which discloses a gas flow channel for an ultrasonic gas meter. The channel comprises a guide plate with a protruding rectangular insert inserted into a guide plate fixing slot, multiple guide plates installed between a first guide plate fixing plate and a second guide plate fixing plate, forming a rectifier plate body inserted into the gas channel. A stop rib on the guide plate fixing plate limits one end of the gas channel. An outlet pipe is installed at the end of the gas channel that mates with the stop rib on the guide plate fixing plate. An O-ring is installed in an O-ring groove, and the annular surface of the outlet pipe and one end of the gas channel are radially sealed by the O-ring. A fixing bracket is inserted through the gas channel fixing bracket slot and the outlet pipe fixing bracket slot. Through structural design optimization, all parts of the gas flow channel are assembled and fixed without the use of any screws or glue. The internal parts of the gas flow channel are firmly and reliably fixed, easy to install, suitable for mass automated production, and beneficial for the widespread use of ultrasonic meters.

[0004] While the aforementioned technology offers some improvements through its structural design, it still suffers from certain drawbacks. When installing the gas flow channel, it requires inserting a protruding rectangular guide plate into the guide plate fixing slot, installing five guide plates between the first and second guide plate fixing plates to form a rectifier body that is then inserted into the gas channel, and finally, inserting a fixing bracket through and into the inner wall of the gas channel fixing bracket slot and the outlet pipe fixing bracket slot. This process is overly cumbersome. Furthermore, the internal space of the ultrasonic gas meter is too small, and its separate fixing bracket may be difficult to insert into the inner wall of the slot. Therefore, an ultrasonic gas meter flow channel assembly and an ultrasonic gas meter are proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an ultrasonic gas meter flow channel assembly and an ultrasonic gas meter, aiming to improve the problem that the installation process of some ultrasonic gas meter flow channels in the prior art is too cumbersome.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an ultrasonic gas meter flow channel assembly, including a gas outlet pipe, the left surface of the bottom end of the gas outlet pipe contacting a gas flow channel, a mounting assembly being provided on the front surface of the right end of the gas flow channel, a second through groove being formed on the front surface of the right end of the gas flow channel, the mounting assembly including a sliding plate, the sliding plate being slidably connected to the front surface of the right end of the gas flow channel, a first through groove being formed at the top of the front surface of the sliding plate, a sliding rod being slidably connected to the inner wall of the first through groove, and the sliding rod being slidably connected to the inner wall of the second through groove.

[0007] As a further description of the above technical solution:

[0008] The upper right side of the gas flow channel has a locking block elastically connected to it by a spring. The locking block is slidably connected to the upper right side of the gas flow channel. One end of the spring is fixedly connected to the upper right side of the gas flow channel, and the other end of the spring is fixedly connected to the upper surface of the locking block.

[0009] As a further description of the above technical solution:

[0010] A rectangular groove is formed on the upper surface of the left side of the bottom end of the air outlet pipe, and the bottom end of the card block contacts the inner wall of the rectangular groove.

[0011] As a further description of the above technical solution:

[0012] A sealing ring is fixedly connected to the left surface of the bottom end of the gas outlet pipe, and a sealing groove is opened on the right surface of the gas flow channel, with the sealing ring contacting the inner wall of the sealing groove.

[0013] As a further description of the above technical solution:

[0014] The lower surface of the card block is set as an inclined plane.

[0015] As a further description of the above technical solution:

[0016] The slide bar, locking block, and spring are provided in multiple sets, and the multiple sets of slide bars, locking blocks, and springs are symmetrically arranged with the center line of the gas flow channel as the axis of symmetry.

[0017] An ultrasonic gas meter flow channel assembly includes a gas meter rear housing, which is disposed on the outer wall of the top of the gas outlet pipe. The front surface of the gas meter rear housing contacts a gas meter front cover. A rectangular groove is formed on the left surface of the front end of the gas meter rear housing. A fixing component is provided on the upper surface of the gas meter front cover. The fixing component includes a slider, which is fixedly connected to the upper surface of the gas meter front cover. A bidirectional threaded rod is rotatably connected through the left surface of the slider.

[0018] As a further description of the above technical solution:

[0019] A fixing block is threaded to the outer wall of the left end of the bidirectional threaded rod. The fixing block is slidably connected to the left end of the upper surface of the gas meter front cover. A rectangular strip is fixedly connected to the lower surface of the fixing block. The right surface of the rectangular strip contacts the inner wall of the rectangular groove.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the installation components ensure that when installing the gas flow channel, it is only necessary to fit the gas flow channel onto the outer wall of the right end of the gas outlet pipe to complete the installation. There is no need to fix it by rotating multiple sets of bolts, which is quick and convenient. At the same time, the sealing ring and sealing groove are designed to ensure the sealing performance.

[0022] 2. In this utility model, the fixed components enable the rapid fixing and disassembly of the front cover and rear shell of the gas meter without relying on bolts or plastic clips for fixing. In this way, the installation efficiency is improved while ensuring connection stability, and the clips will not break, thereby improving its practicality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the ultrasonic gas meter flow channel assembly in this utility model;

[0024] Figure 2 This is a split cross-sectional view of the three-dimensional structure of the ultrasonic gas meter flow channel assembly in this utility model.

[0025] Figure 3 In this utility model Figure 2 An enlarged schematic diagram of the three-dimensional structure of region A;

[0026] Figure 4 In this utility model Figure 3 An enlarged schematic diagram of the three-dimensional structure of region B;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the overall device in this utility model;

[0028] Figure 6 This is a split cross-sectional view of the three-dimensional structure of the rear shell and front cover of the gas meter in this utility model.

[0029] Legend:

[0030] 1. Gas outlet pipe; 2. Gas flow channel; 3. Mounting assembly; 31. Slide plate; 32. Slide rod; 33. Locking block; 34. Spring; 35. Through groove one; 4. Rectangular groove one; 5. Sealing ring; 6. Sealing groove; 7. Through groove two; 8. Fixing assembly; 81. Two-way threaded rod; 82. Slider; 83. Fixing block; 84. Rectangular strip; 9. Gas meter rear cover; 10. Gas meter front cover; 11. Rectangular groove two. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 4 This utility model provides an embodiment of an ultrasonic gas meter flow channel assembly, including a gas outlet pipe 1. The left surface of the bottom end of the gas outlet pipe 1 contacts a gas flow channel 2. The gas flow channel 2 is existing technology and is a flow channel set inside the ultrasonic gas meter. It can guide the gas to flow along a predetermined path, thereby ensuring the accuracy and stability of the gas flow measurement. It can be implemented by those skilled in the art. Since it is existing technology, it will not be described in detail in this case. The front surface of the right end of the gas flow channel 2 is provided with an installation component 3. The front surface of the right end of the gas flow channel 2 has a through groove 2 7. The through groove 2 7 is vertically opened to ensure that the slide rod 32 can only move up and down. The installation component 3 includes a sliding plate 31. The sliding plate 31 is slidably connected to the front surface of the right end of the gas flow channel 2. The top of the front surface of the sliding plate 31 has a through groove 1 35. The through groove 1 35 has a certain slope to ensure that when the sliding plate 31 is pushed, the slide rod 32 can move along its slope. The inner wall of the through groove 1 35 is slidably connected to the slide rod 32. The slide rod 32 is slidably connected to the inner wall of the through groove 2 7.

[0033] Reference Figure 2 - Figure 4A locking block 33 is elastically connected to the upper right side inner wall of the gas flow channel 2 via a spring 34. The spring 34, through its own elasticity, constantly pushes the locking block 33 downward, ensuring the stability of the locking block 33 when it is in the limit position. The locking block 33 is slidably connected to the upper right side inner wall of the gas flow channel 2. One end of the spring 34 is fixedly connected to the upper right side inner wall of the gas flow channel 2, and the other end of the spring 34 is fixedly connected to the upper surface of the locking block 33. A rectangular groove 4 is opened on the upper surface of the left side of the bottom end of the gas outlet pipe 1. The bottom end of the locking block 33 contacts the rectangular groove 4. The inner wall of the groove 4 has a sloped lower surface for the locking block 33. The slope ensures quick connection between the gas channel 2 and the outlet pipe 1, improving convenience. Multiple sets of sliding rods 32, locking blocks 33, and springs 34 are provided, and these sets are symmetrically arranged with the center line of the gas channel 2 as the axis of symmetry. The multiple sets of sliding rods 32, locking blocks 33, and springs 34 are symmetrically arranged with the transverse center line of the gas channel 2, ensuring the stability of the connection between the gas channel 2 and the outlet pipe 1.

[0034] Reference Figure 2 - Figure 3 A sealing ring 5 is fixedly connected to the left surface of the bottom end of the gas outlet pipe 1, and a sealing groove 6 is opened on the right surface of the gas flow channel 2. The sealing ring 5 is adapted to the sealing groove 6 to ensure the sealing of the connection between the gas flow channel 2 and the gas outlet pipe 1. The sealing ring 5 contacts the inner wall of the sealing groove 6.

[0035] Reference Figure 5 - Figure 6 This utility model also provides an ultrasonic gas meter with an ultrasonic gas meter flow channel assembly, including a gas meter back cover 9. The gas meter back cover 9 is existing technology and provides a certain degree of protection for the gas flow channel 2 and the gas outlet pipe 1. At the same time, an air inlet pipe is provided on the left side of its upper surface near the gas outlet pipe 1 to ensure gas flow. This is something that those skilled in the art can implement. Since it is existing technology, it will not be described in detail in this case. The gas meter back cover 9 is located on the outer wall of the top of the gas outlet pipe 1. The front surface of the gas meter back cover 9 contacts the gas meter front cover 10. The gas meter front cover 10 is existing technology and is part of the gas meter. Its front surface is provided with a display screen and control buttons, which makes it convenient for users to observe the gas flow and improves practicality. A rectangular groove 2 11 is opened on the left surface of the front end of the gas meter back cover 9. A fixing component 8 is provided on the upper surface of the gas meter front cover 10. The fixing component 8 includes a slider 82, which is fixedly connected to the upper surface of the gas meter front cover 10. A bidirectional threaded rod 81 is rotatably connected through the left surface of the slider 82.

[0036] Reference Figure 6The outer wall of the left end of the bidirectional threaded rod 81 is threaded with a fixing block 83. The bidirectional threaded rod 81 is a prior art. Its outer wall is provided with two sets of rod-shaped threads with different directions of rotation. When rotated, the structure threaded to its outer wall will move relative or oppositely. At the same time, it has the characteristic of left and right self-locking to ensure the stability of the structural connection. The fixing block 83 is slidably connected to the left end of the upper surface of the gas meter front cover 10. The direction of the fixing block 83 sliding through the upper surface of the gas meter front cover 10 is left and right. The lower surface of the fixing block 83 is fixedly connected with a rectangular strip 84. The right surface of the rectangular strip 84 contacts the inner wall of the rectangular groove 11.

[0037] Working principle: When assembling the gas flow channel 2 and the gas outlet pipe 1, the gas outlet pipe 1 can be installed on the inner wall of the gas meter back cover 9 first. Then, simply insert the left side of the bottom end of the gas outlet pipe 1 into the inner wall of the right end of the gas flow channel 2. During the insertion process, the gas outlet pipe 1 will be pushed along the inclined surface of the locking block 33 to move. The locking block 33 will squeeze the spring 34. At the same time, the locking block 33 will drive the sliding rod 32 to move. The sliding rod 32 will push the sliding plate 31 to move along the inclination of the through groove 35 until the locking block 33 overlaps with the rectangular groove 4. At this time, the spring 34 will push the locking block 33 to move in the opposite direction and insert into the inner wall of the rectangular groove 4 through its own elasticity. The sliding plate 31 and the sliding rod 32 will also be reset. At this time, the sealing ring 5 will also be inserted into the inner wall of the sealing groove 6 to seal the connection between the gas outlet pipe 1 and the gas flow channel 2. When disassembling, simply push the sliding plate 31. The subsequent structural assembly method is the same as above.

[0038] When installing the gas meter rear cover 9 and the gas meter front cover 10, simply insert the front end of the gas meter rear cover 9 into the inner wall of the rear end of the gas meter front cover 10, and then rotate the bidirectional threaded rod 81. At this time, the slider 82, which is threaded to its outer wall, will move linearly. The slider 82 will drive the rectangular bar 84 to move until it can no longer be removed from the bidirectional threaded rod 81. At this time, the rectangular bar 84 will be fully inserted into the inner wall of the rectangular groove 11. The gas meter rear cover 9 and the gas meter front cover 10 are thus installed quickly and conveniently. When disassembling, simply rotate the bidirectional threaded rod 81 in the opposite direction. The subsequent structural fit is the same as above.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrasonic gas meter flow channel assembly, comprising a gas outlet pipe (1), characterized in that: The left surface of the bottom end of the gas outlet pipe (1) is in contact with a gas flow channel (2). The front surface of the right end of the gas flow channel (2) is provided with an installation component (3). The front surface of the right end of the gas flow channel (2) is provided with a through groove two (7). The installation component (3) includes a sliding plate (31). The sliding plate (31) is slidably connected to the front surface of the right end of the gas flow channel (2). The top of the front surface of the sliding plate (31) is provided with a through groove one (35). The inner wall of the through groove one (35) is slidably connected with a sliding rod (32). The sliding rod (32) is slidably connected to the inner wall of the through groove two (7).

2. The ultrasonic gas meter flow channel assembly according to claim 1, characterized in that: The upper right side of the gas flow channel (2) is elastically connected to a locking block (33) by a spring (34). The locking block (33) is slidably connected to the upper right side of the gas flow channel (2). One end of the spring (34) is fixedly connected to the upper right side of the gas flow channel (2), and the other end of the spring (34) is fixedly connected to the upper surface of the locking block (33).

3. The ultrasonic gas meter flow channel assembly according to claim 2, characterized in that: A rectangular groove (4) is provided on the upper surface of the left side of the bottom end of the air outlet pipe (1), and the bottom end of the locking block (33) contacts the inner wall of the rectangular groove (4).

4. The ultrasonic gas meter flow channel assembly according to claim 1, characterized in that: A sealing ring (5) is fixedly connected to the left surface of the bottom end of the gas outlet pipe (1), and a sealing groove (6) is opened on the right surface of the gas flow channel (2), with the sealing ring (5) contacting the inner wall of the sealing groove (6).

5. An ultrasonic gas meter flow channel assembly according to claim 2, characterized in that: The lower surface of the card block (33) is set as an inclined surface.

6. The ultrasonic gas meter flow channel assembly according to claim 2, characterized in that: The slide bar (32), the locking block (33), and the spring (34) are provided in multiple sets, and the multiple sets of slide bars (32), locking blocks (33), and springs (34) are symmetrically arranged with the center line of the gas flow channel (2) as the axis of symmetry.

7. An ultrasonic gas meter with an ultrasonic gas meter flow channel assembly according to any one of claims 1 to 6, comprising a gas meter rear housing (9), characterized in that: The gas meter rear shell (9) is located on the outer wall of the top of the gas outlet pipe (1). The front surface of the gas meter rear shell (9) contacts the gas meter front cover (10). A rectangular groove (11) is provided on the left surface of the front end of the gas meter rear shell (9). A fixing component (8) is provided on the upper surface of the gas meter front cover (10). The fixing component (8) includes a slider (82). The slider (82) is fixedly connected to the upper surface of the gas meter front cover (10). A bidirectional threaded rod (81) is rotatably connected through the left surface of the slider (82).

8. The ultrasonic gas meter with an ultrasonic gas meter flow channel assembly according to claim 7, characterized in that: The outer wall of the left end of the bidirectional threaded rod (81) is threaded with a fixing block (83). The fixing block (83) is slidably connected to the left end of the upper surface of the gas meter front cover (10). A rectangular strip (84) is fixedly connected to the lower surface of the fixing block (83). The right surface of the rectangular strip (84) contacts the inner wall of the rectangular groove (11).

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