Ultrasonic gas meter with good sealing performance

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By symmetrically setting fastening components on the ultrasonic gas meter, including fixing plates, curved clamps and threaded rods, the problem of gas leakage caused by loosening of the existing gas meter is solved, and better sealing and use stability are achieved.

CN222617972UActive Publication Date: 2025-03-14SHANGHAI YUPEI ELECTRONIC TECH CO LTD

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Patent Information

Application Number: CN202421391154.3
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-06-18
Publication Date: 2025-03-14
Estimated Expiration: 2034-06-18

AI Technical Summary

Technical Problem

Due to the simple connection structure of the existing ultrasonic gas meter, it is prone to loosening during long-term use, resulting in gas leakage.

Method used

Two fastening components are symmetrically arranged on the top of the gas meter body, including a fixing plate, a curved clamp and a threaded rod. The curved clamps are driven to approach each other by rotating the threaded rod, clamping the connection between the intake pipe, the outlet pipe and the pipe fittings, and increasing sealing through the sealing ring.

Benefits of technology

It effectively prevents gas leakage caused by loosening during long-term use, and improves the sealing of pipe fittings, intake pipes and outlet pipes.

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Abstract

The utility model discloses an ultrasonic gas meter with good sealing performance, which comprises a gas meter body and two fastening components, the two fastening components are symmetrically arranged at the top of the gas meter body, and the two fastening components comprise a fixed plate and two arc-shaped clamping plates which are positioned on the fixed plate and symmetrically positioned in the fixed plate; threaded rods are rotationally connected into the fixing plates, lug plates are installed at the side ends of the arc-shaped clamping plates, threaded holes are formed in the side walls of the lug plates, sealing rings are installed on the inner walls of the arc-shaped clamping plates, the air inlet pipe is located between the two arc-shaped clamping plates on the left side, and the air outlet pipe is located between the two arc-shaped clamping plates on the right side. The threaded rod is rotated to drive the two arc-shaped clamping plates to get close to each other and clamp the joints of the gas inlet pipe, the gas outlet pipe and the pipe fitting, the pipe fitting, the gas inlet pipe and the gas outlet pipe are reinforced, the sealing performance of the joints of the pipe body is improved through the sealing rings, and gas leakage caused by loosening during long-term use is prevented.

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Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic gas meters, in particular to an ultrasonic gas meter with good sealing performance. Background Art

[0002] The ultrasonic gas meter has an ultrasonic measuring device fixed inside, mainly a transducer. The transducer is fixed on the gas flow path, and the gas flow path is connected to the gas inlet and outlet of the gas meter case. Its working principle is: the time difference method is used to measure the gas flow rate, and the difference in the speed of the ultrasonic signal when it propagates in the fluid in the downstream and upstream is measured to reflect the flow rate of the fluid. Because the error caused by the change of the sound speed of the time difference method with the fluid temperature is small, the ultrasonic meter greatly improves the measurement accuracy compared with the diaphragm gas meter.

[0003] Most of the existing ultrasonic gas meters are connected to pipes by bolts, and the connection structure is simple, which is easy to loosen during long-term use, causing gas leakage. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems and / or the problems existing in the existing ultrasonic gas meter with good sealing performance, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide an ultrasonic gas meter with good sealing performance, by symmetrically arranging two fastening components on the top of the gas meter body, including a fixed plate and two arc-shaped clamping plates located at the fixed plate and symmetrically located inside the fixed plate, a threaded rod is rotatably connected inside the fixed plate, an ear plate is installed at the side end of the arc-shaped clamping plate, a threaded hole is provided on the side wall of the ear plate, a sealing ring is installed on the inner wall of the arc-shaped clamping plate, the air inlet pipe is located in the middle of the two arc-shaped clamping plates on the left, and the air outlet pipe is located in the middle of the two arc-shaped clamping plates on the right. When the pipe fitting is connected to the air inlet pipe and the air outlet pipe, the rotating threaded rod drives the two arc-shaped clamping plates to approach each other and clamp the connection between the air inlet pipe, the air outlet pipe and the pipe fitting, thereby reinforcing the pipe fitting, the air inlet pipe and the air outlet pipe, and increasing the sealing performance of the connection between the pipe body by the sealing ring to prevent gas leakage due to looseness during long-term use.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] An ultrasonic gas meter with good sealing performance, comprising:

[0009] A gas meter body, wherein an air inlet pipe is installed on the left side of the top of the gas meter body, and an air outlet pipe is installed on the right side of the top of the gas meter body;

[0010] A fastening assembly, wherein the fastening assemblies are two and symmetrically installed on the top of the gas meter body, the fastening assembly includes a second positive and negative threaded rod installed on a first fixing frame and rotatably connected to the inside of the first fixing frame, a second knob installed on the side wall of the second positive and negative threaded rod and two arc-shaped clamping plates symmetrically located inside the first fixing frame, ear plates are installed at both ends of the arc-shaped clamping plates, one of the ear plates has a first threaded hole on its side wall, the second positive and negative threaded rod rotates through the first threaded hole, a sealing ring is installed on the inner wall of the arc-shaped clamping plate, the air inlet pipe is located between the two arc-shaped clamping plates on the left, and the air outlet pipe is located between the two arc-shaped clamping plates on the right.

[0011] As a preferred solution of the ultrasonic gas meter with good sealing performance described in the utility model, the second positive and negative threaded rod body is installed with a pulley, and the two pulleys are connected by a belt.

[0012] As a preferred solution of an ultrasonic gas meter with good sealing performance described in the utility model, the fastening assembly also includes a second fixing bracket, a second guide rod is installed inside the second fixing bracket, and a first guide hole is opened on the side wall of the other ear plate, and the second guide rod passes through the first guide hole.

[0013] As a preferred solution of an ultrasonic gas meter with good sealing performance described in the utility model, it also includes a limit assembly, which includes a fixed frame installed on the top of the gas meter body, a slider slidably connected to the inside of the fixed frame and a spring installed at the bottom of the slider, and a limit groove cooperating with the second knob is provided on the top of the slider.

[0014] As a preferred solution of an ultrasonic gas meter with good sealing performance described in the utility model, two side panels are symmetrically installed on the side wall of the gas meter body, one of the side panels is rotatably connected to the side wall of the first knob, and the first knob side wall is installed with a first forward and reverse threaded rod, and the first forward and reverse threaded rod extends between the two side panels.

[0015] As a preferred solution of an ultrasonic gas meter with good sealing performance described in the utility model, it also includes a square clamp plate, wherein the square clamp plates are two and are symmetrically located between the two side plates, the side wall of the square clamp plate is provided with a second threaded hole, the first positive and negative threaded rod is rotated to pass through the second threaded hole, a guide rod is also installed between the two side plates, the side wall of the square clamp plate is provided with a second guide hole, and the guide rod passes through the second guide hole.

[0016] Compared with the prior art: two fastening components are symmetrically arranged on the top of the gas meter body, including a fixed plate and two arc-shaped clamping plates located on the fixed plate and symmetrically located inside the fixed plate, a threaded rod is rotatably connected inside the fixed plate, an ear plate is installed on the side end of the arc-shaped clamping plate, a threaded hole is opened on the side wall of the ear plate, a sealing ring is installed on the inner wall of the arc-shaped clamping plate, the air inlet pipe is located in the middle of the two arc-shaped clamping plates on the left, and the air outlet pipe is located in the middle of the two arc-shaped clamping plates on the right. When the pipe fitting is connected to the air inlet pipe and the air outlet pipe, the rotating threaded rod drives the two arc-shaped clamping plates to approach each other and clamp the connection between the air inlet pipe, the air outlet pipe and the pipe fitting, thereby reinforcing the pipe fitting, the air inlet pipe and the air outlet pipe, and increasing the sealing of the pipe body connection through the sealing ring to prevent gas leakage due to looseness during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is the overall structure diagram of an ultrasonic gas meter with good sealing performance according to the utility model;

[0019] Figure 2 This is a partial structural diagram of an ultrasonic gas meter with good sealing performance according to the utility model;

[0020] Figure 3 This is a structural diagram of a fastening assembly of an ultrasonic gas meter with good sealing performance according to the utility model;

[0021] Figure 4 This is a structural diagram of a square clamping plate of an ultrasonic gas meter with good sealing performance according to the utility model;

[0022] Figure 5 This is a structural diagram of a limit assembly of an ultrasonic gas meter with good sealing performance according to the utility model. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides an ultrasonic gas meter with good sealing performance. The utility model comprises two fastening components symmetrically arranged on the top of the gas meter body, including a fixing plate and two arc-shaped clamping plates located at the fixing plate and symmetrically located inside the fixing plate. A threaded rod is rotatably connected inside the fixing plate, an ear plate is installed at the side end of the arc-shaped clamping plate, a threaded hole is provided on the side wall of the ear plate, a sealing ring is installed on the inner wall of the arc-shaped clamping plate, an air inlet pipe is located between the two arc-shaped clamping plates on the left side, and an air outlet pipe is located between the two arc-shaped clamping plates on the right side. When the pipe fitting is connected to the air inlet pipe and the air outlet pipe, the rotating threaded rod drives the two arc-shaped clamping plates to approach each other and clamp the connection between the air inlet pipe, the air outlet pipe and the pipe fitting, so that the pipe fitting and the air inlet pipe and the air outlet pipe are reinforced, and the sealing performance of the connection between the pipe body is increased by the sealing ring to prevent gas leakage due to looseness during long-term use.

[0027] Figure 1-3 The following is a schematic diagram of a structure of an ultrasonic gas meter with good sealing performance according to the utility model. Figure 1-Figure 3 In this embodiment, an ultrasonic gas meter with good sealing performance includes a gas meter body 100, a fastening assembly 200, a limiting assembly 300 and a square clamp 400.

[0028] An air inlet pipe 110 is installed on the left side of the top of the gas meter body 100, and an air outlet pipe 120 is installed on the right side of the top of the gas meter body 100. Two side panels 130 are symmetrically installed on the side wall of the gas meter body 100. One of the side panels 130 is rotatably connected to the side wall of a first knob 140. A first forward and reverse threaded rod 150 is installed on the side wall of the first knob 140. The first forward and reverse threaded rod 150 extends between the two side panels 130.

[0029] The fastening assembly 200 is two and symmetrically installed on the top of the gas meter body 100. The fastening assembly 200 includes a second positive and negative threaded rod 220 installed on the first fixing frame 210 and rotatably connected to the inside of the first fixing frame 210, a second knob 230 installed on the side wall of the second positive and negative threaded rod 220, and two arc-shaped clamping plates 240 symmetrically located inside the first fixing frame 210. Ear plates 250 are installed at both ends of the arc-shaped clamping plates 240. A first threaded hole 251 is opened on the side wall of one of the ear plates 250. The second positive and negative threaded rod 220 rotates through the first threaded hole 251. A sealing ring 241 is installed on the inner wall of the arc-shaped clamping plate 240. The air inlet pipe 110 is located between the two arc-shaped clamping plates 240 on the left, and the air outlet pipe 120 is located between the two arc-shaped clamping plates 240 on the right. The rod body of the second positive and negative threaded rod 220 is installed with a pulley 221. The two pulleys 221 are connected The fastening assembly 200 is connected by a belt, and further comprises a second fixing frame 260, wherein a second guide rod 270 is installed inside the second fixing frame 260, and a first guide hole 252 is opened on the side wall of another ear plate 250, and the second guide rod 270 passes through the first guide hole 252. By rotating the second knob 230, one of the second positive and negative threaded rods 220 is driven to rotate, and when the second positive and negative threaded rod 220 rotates, the pulley 221 is driven to rotate, and the pulley 221 uses a belt to drive another pulley 221 and the second positive and negative threaded rod 220 to rotate. When the second positive and negative threaded rod 220 rotates, the screw structure is used to push the two arc-shaped clamping plates 240 to approach each other and clamp the connection between the tube body and the air inlet pipe 110 or the air outlet pipe 120, so as to fasten the tube body and the air inlet pipe 110 and the air outlet pipe 120, and at the same time, the sealing ring 241 seals the connection between the tube body and the air inlet pipe 110 and the air outlet pipe 120.

[0030] The limit assembly 300 includes a fixed frame 310 installed on the top of the gas meter body 100, a slider 320 slidably connected to the inside of the fixed frame 310, and a spring 330 installed at the bottom of the slider 320. The top of the slider 320 is provided with a limit groove 340 that cooperates with the second knob 230. The outer wall of the second knob 230 has a circle of dense teeth. Correspondingly, the inner wall of the limit groove 340 is provided with dense teeth that cooperate with the teeth. By pulling the slider 320 downward and squeezing the spring 330 The second knob 230 is separated from the inside of the limiting groove 340. At this time, rotating the second knob 230 drives the second positive and negative threaded rod 220 to rotate and adjust the position of the arc clamping plate 240. After the adjustment is completed, release the slider 320, and the spring 330 rebounds and pushes the slider 320 to move upward until the second knob 230 is embedded in the limiting groove 340. The outer wall teeth of the second knob 230 and the inner wall teeth of the limiting groove 340 engage with each other to limit the second knob 230 and the second positive and negative threaded rod 220.

[0031] There are two square clamps 400 symmetrically located between the two side plates 130, and a second threaded hole 410 is provided on the side wall of the square clamp 400. The first positive and negative threaded rod 150 rotates and passes through the second threaded hole 410. A guide rod 160 is also installed between the two side plates 130, and a second guide hole 420 is provided on the side wall of the square clamp 400. The guide rod 160 passes through the second guide hole 420. By moving the gas meter body 100 to the raised part of the wall between the two square clamps 400, rotating the first knob 140 to drive the first positive and negative threaded rod 150 to rotate, and when the first positive and negative threaded rod 150 rotates, the screw structure is used to push the two square clamps 400 closer to each other and clamp the raised part of the wall, so as to facilitate the installation and fixation of the gas meter body 100.

[0032] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An ultrasonic gas meter with good sealing performance, characterized in that: include: A gas meter body (100), wherein an air inlet pipe (110) is installed on the left side of the top of the gas meter body (100), and an air outlet pipe (120) is installed on the right side of the top of the gas meter body (100); A fastening assembly (200), wherein the fastening assembly (200) is two and symmetrically mounted on the top of the gas meter body (100), the fastening assembly (200) comprising a second positive and negative threaded rod (220) mounted on a first fixing frame (210), rotatably connected to the inside of the first fixing frame (210), a second knob (230) mounted on the side wall of the second positive and negative threaded rod (220), and two arc-shaped clamping plates (240) symmetrically located inside the first fixing frame (210), the fastening assembly (200) comprising a second positive and negative threaded rod (220) mounted on the side wall of the second positive and negative threaded rod (220), and two arc-shaped clamping plates (240) symmetrically located inside the first fixing frame (210), the fastening assembly (200) comprising a second positive and negative threaded rod (220) mounted on the side wall of the second positive and negative threaded rod (220), and a second arc-shaped clamping plate (240) symmetrically located inside the first fixing frame (210), the second positive and negative threaded rod (220) being provided with a second knob (230) mounted on the side wall of the second positive and negative threaded rod (220), and ... Ear plates (250) are installed at both ends of the arc-shaped clamping plate (240), a first threaded hole (251) is opened on the side wall of one of the ear plates (250), the second positive and negative threaded rod (220) rotates through the first threaded hole (251), a sealing ring (241) is installed on the inner wall of the arc-shaped clamping plate (240), the air inlet pipe (110) is located between the two arc-shaped clamping plates (240) on the left, and the air outlet pipe (120) is located between the two arc-shaped clamping plates (240) on the right.

2. The ultrasonic gas meter with good sealing performance according to claim 1, characterized in that: A belt pulley (221) is installed on the rod body of the second positive and negative threaded rod (220), and the two belt pulleys (221) are connected by a belt.

3. The ultrasonic gas meter with good sealing performance according to claim 2, characterized in that: The fastening assembly (200) further comprises a second fixing frame (260), a second guide rod (270) being installed inside the second fixing frame (260), a first guide hole (252) being formed on a side wall of the other ear plate (250), and the second guide rod (270) passing through the first guide hole (252).

4. The ultrasonic gas meter with good sealing performance according to claim 3, characterized in that: The gas meter also includes a limit assembly (300), the limit assembly (300) including a fixed frame (310) installed on the top of the gas meter body (100), a slider (320) slidably connected to the inside of the fixed frame (310), and a spring (330) installed at the bottom of the slider (320), and the top of the slider (320) is provided with a limit groove (340) that cooperates with the second knob (230).

5. The ultrasonic gas meter with good sealing performance according to claim 4, characterized in that: The side wall of the gas meter body (100) is symmetrically mounted with two side plates (130), one of the side plates (130) being rotatably connected to a first knob (140), the side wall of the first knob (140) being mounted with a first forward and reverse threaded rod (150), the first forward and reverse threaded rod (150) extending between the two side plates (130).

6. The ultrasonic gas meter with good sealing performance according to claim 5, characterized in that: It also includes a square clamp plate (400), which is two and symmetrically located between the two side plates (130), and the side wall of the square clamp plate (400) is provided with a second threaded hole (410), and the first positive and negative threaded rod (150) rotates through the second threaded hole (410), and a guide rod (160) is also installed between the two side plates (130), and the side wall of the square clamp plate (400) is provided with a second guide hole (420), and the guide rod (160) passes through the second guide hole (420).