Electromechanical synchronous electronic temperature and pressure compensation gas meter

Abstract

The utility model relates to an electromechanical synchronous electronic temperature and pressure compensation gas meter which comprises a gas meter body and a support assembly assembled on the gas meter body. A gear assembly is arranged on the bracket assembly; the gear assembly is in meshing transmission with driving teeth in the gas meter body. A control panel and a counter are mounted on the bracket assembly; a stepping motor is arranged in the counter, and the stepping motor drives a counter character wheel to rotate through an internal gear. The device is ingenious in design, adopts the principle of light reflection for sampling, is high in sampling precision, can be freely adjusted according to the required precision, and avoids magnetic interference.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas meters, and in particular relates to an electromechanical synchronous electronic temperature and pressure compensation gas meter. Background Art

[0002] As a compressible gas that is easily expanded by heat, the volume of fuel gas changes with changes in temperature and pressure. In trade settlement, in order to ensure the fairness between buyers and sellers, the fuel gas volume under working conditions needs to be converted into the volume under standard conditions for settlement. Traditional electronic temperature and pressure compensated gas meters can only realize temperature and pressure compensation of electronic counters, but the mechanical counter is still the volume value of working conditions, which causes the motor to be out of sync, easily causing disputes and bringing inconvenience to use.

[0003] In view of the above problems, it is necessary to improve them. Utility Model Content

[0004] The utility model aims to provide an electromechanically synchronized electronic temperature and pressure compensation gas meter which has a simple structure, ingenious design, real-time collection of gas temperature and pressure, high sampling accuracy and improved metering accuracy.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: an electromechanically synchronized electronic temperature and pressure compensated gas meter, including a gas meter body, a bracket assembly assembled on the gas meter body; a gear assembly is arranged on the bracket assembly; the gear assembly meshes with the active teeth in the gas meter body for transmission; a control panel and a counter are installed on the bracket assembly; the counter has a built-in stepper motor, and the stepper motor drives the counter character wheel to rotate through the internal gears.

[0006] As a preferred solution of the utility model, the gear assembly includes an adjusting gear, a first gear, a transmission gear, a transition gear and a sampling wheel; wherein the adjusting gear is meshed with the first gear, the active gear is connected to the internal movement of the gas meter body, the adjusting gear is meshed with the active gear, so that the active gear rotates to drive the adjusting gear to the first gear, the first gear is transmitted to the transition gear through the transmission gear, and the transition gear is connected to the sampling wheel assembled on the gas meter body.

[0007] As a preferred solution of the utility model, the adjustment gear comprises a large adjustment gear and a small adjustment gear which are coaxially arranged; the large adjustment gear is meshed with the driving gear, and the small adjustment gear is meshed with the first gear.

[0008] As a preferred solution of the utility model, the transmission gear includes a large gear and a small gear arranged coaxially, the large gear is meshed with the transition gear for transmission, and the small gear is meshed with the first gear for transmission.

[0009] As a preferred solution of the utility model, the transition gear includes a transition cylinder, and a transition wheel is arranged on the outer side of the transition cylinder; wherein, the transition wheel is meshed with the large gear, a mounting hole is formed on the inner side of the transition cylinder, and a plurality of limiting grooves are arranged on the inner side of the transition cylinder, and the plurality of limiting grooves are arranged circumferentially along the mounting hole, a limiting rod is formed on the sampling wheel, and a plurality of limiting blocks corresponding to the limiting grooves are arranged on the limiting rod, and when the sampling wheel is connected to the transition gear, the limiting rod passes through the mounting hole, and the limiting block is embedded in the limiting groove.

[0010] As a preferred solution of the utility model, the transition gear comprises a large transition wheel and a small transition wheel which are coaxially arranged; wherein the large transition wheel is meshed with the sampling wheel, and the small transition wheel is meshed with the large gear.

[0011] As a preferred solution of the utility model, an annular light-shielding structure is formed on the bracket assembly, and the sampling wheel is built into the annular light-shielding structure.

[0012] As a preferred solution of the utility model, the sampling wheel has at least three sector-shaped reflection surfaces evenly distributed on the same axis for increasing the sampling frequency, and the sector-shaped reflection surfaces are located in the annular shading structure.

[0013] As a preferred solution of the utility model, the control panel is mounted on the bracket assembly and fits with the top surface of the annular shading structure of the bracket assembly.

[0014] As a preferred solution of the utility model, a light emitting element and a light receiving element are provided on the control board, and both the light emitting element and the light receiving element are located above the sampling wheel.

[0015] As a preferred solution of the utility model, the counter is detachably assembled on the bracket assembly; a groove for accommodating the counter is formed on the bracket assembly, and a buckle is formed on the top of the bracket assembly near the groove. The counter is built into the groove and locked by the buckle.

[0016] As a preferred solution of the utility model, a temperature and pressure sensor for real-time monitoring of gas temperature and pressure is provided inside the main body of the gas meter, and the temperature and pressure sensor is electrically connected to the control board.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model has a simple structure, and the electromechanical synchronous drive mechanism ensures the accuracy and stability of gas volume measurement.

[0019] 2. The utility model is cleverly designed and adopts the principle of light reflection for sampling, has high sampling accuracy, can be freely adjusted according to the required accuracy, and avoids magnetic interference.

[0020] 3. The utility model collects gas temperature and pressure in real time, and corrects the gas volume through a temperature and pressure compensation algorithm, thereby improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural exploded view of an embodiment of the utility model;

[0022] Figure 2 This is a front view of the connection between the bracket assembly and the gear assembly of the embodiment of the utility model;

[0023] Figure 3 This is a side view of the connection between the bracket assembly and the gear assembly of the embodiment of the utility model;

[0024] Figure 4 This is a front view of the counter of the utility model embodiment assembled on the bracket assembly;

[0025] Figure 5 This is a schematic diagram of the structure of the sampling wheel in an embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the connection between the adjusting gear, the driving gear and the first gear in the embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the transmission gear in the embodiment of the utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the transition gear in the embodiment of the utility model;

[0029] Explanation of the accompanying drawings: gas meter body 1, counter 2, control panel 3, bracket assembly 4, gear assembly 5, sampling wheel 6, driving tooth 7, first gear 8, transition gear 10, transition cylinder 11, transition wheel 12, mounting hole 13, limiting groove 14, transmission gear 20, large gear 21, small gear 22, adjustment gear 30, large adjustment gear 31, small adjustment gear 32, annular shading structure 40, groove 41, buckle 42, fan-shaped reflecting surface 60, limiting rod 61, limiting block 62. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example: Figure 1-3 As shown, Figure 1 This is a structural exploded view of an embodiment of the utility model; Figure 2 This is a front view of the connection between the bracket assembly and the gear assembly of the embodiment of the utility model; Figure 3 This is a side view of the connection between the bracket assembly and the gear assembly of the embodiment of the utility model;

[0033] As technology matures, customers have higher requirements for the accuracy of gas meters; traditional electronic temperature and pressure compensation gas meters can only achieve temperature and pressure compensation of electronic counters, but the mechanical counter is still the volume value of the working condition, which causes the motor to be out of sync and easily causes disputes. For this reason, the utility model proposes an electromechanical synchronous electronic temperature and pressure compensation gas meter; specifically, an electromechanical synchronous electronic temperature and pressure compensation gas meter, including a gas meter body 1, a bracket assembly 4 assembled on the gas meter body 1; a gear assembly 5 is arranged on the bracket assembly 4; the gear assembly 5 is meshed with the active teeth 7 in the gas meter body 1 for transmission; a control board 3 and a counter 2 are installed on the bracket assembly 4; the counter 2 has a built-in stepper motor, and the stepper motor drives the counter character wheel to rotate through the internal gears.

[0034] like Figure 2 As shown, Figure 2 This is a front view of the connection between the bracket assembly and the gear assembly of an embodiment of the utility model; specifically, the gear assembly 5 includes an adjusting gear 30, a first gear 8, a transmission gear 20, a transition gear 10 and a sampling wheel 6; wherein, the adjusting gear 30 is meshed with the first gear 8, and the active tooth 7 is connected to the internal movement of the gas meter body 1, and the adjusting gear 30 is meshed with the active tooth 7, so that the active tooth 7 rotates to drive the adjusting gear 30 to be transmitted to the first gear 8, and the first gear 8 is transmitted to the transition gear 10 through the transmission gear 20, and the transition gear 10 is connected to the sampling wheel 6 assembled on the gas meter body 1; the utility model has a simple structure, and the gear sets are meshed with each other to achieve the required transmission ratio, realize high-precision sampling and counting, improve the accuracy and reliability of the electromechanical conversion of the gas meter, are easy to manufacture and install, and have broad application prospects and market prospects.

[0035] like Figure 6 As shown, Figure 6This is a schematic diagram of the connection between the adjusting gear 30, the driving gear and the first gear in an embodiment of the utility model; specifically, the adjusting gear 30 includes a large adjusting gear 31 and a small adjusting gear 32 arranged coaxially; the large adjusting gear 31 is meshed with the driving gear 7, and the small adjusting gear 32 is meshed with the first gear 8; wherein the large adjusting gear 31 and the small adjusting gear 32 are coaxially arranged and can be replaced to correct the base table error value.

[0036] like Figure 7 As shown, Figure 7 It is a schematic diagram of the structure of the transmission gear of an embodiment of the utility model; the transmission gear 20 includes a large gear 21 and a small gear 22 arranged coaxially, the large gear 21 is meshed with the transition gear 10 for transmission, and the small gear 22 is meshed with the first gear 8 for transmission; the gears are meshed with each other to achieve the required transmission ratio.

[0037] like Figure 8 As shown, Figure 8 It is a schematic diagram of the structure of the transition gear of an embodiment of the utility model; the transition gear 10 includes a transition cylinder 11, and a transition wheel 12 is arranged on the outer side of the transition cylinder 11; wherein, the transition wheel 12 is meshed with the large gear 21, and a mounting hole 13 is formed on the inner side of the transition cylinder 11, and a plurality of limiting grooves 14 are arranged on the inner side of the transition cylinder 11, and the plurality of limiting grooves 14 are arranged circumferentially along the mounting hole 13, a limiting rod 61 is formed on the sampling wheel 6, and a plurality of limiting blocks 62 corresponding to the limiting grooves 14 are arranged on the limiting rod 61, and when the sampling wheel 6 is connected to the transition gear 10, the limiting rod 61 passes through the mounting hole 13, and the limiting block 62 is embedded in the limiting groove 14; in this embodiment, the sampling wheel 6 is driven to rotate by the clamping connection between the transition gear 10 and the sampling wheel 6.

[0038] like Figure 4-5 As shown, Figure 4 This is a front view of the counter of the utility model embodiment assembled on the bracket assembly; Figure 5 It is a schematic diagram of the structure of the sampling wheel of an embodiment of the utility model; the sampling wheel 6 is located at the end of the gear assembly 5, connected to the large transition wheel 11 of the transition gear 10, and the sampling wheel 6 is driven by the rotation of the large transition wheel 11; the sampling wheel 6 has at least three fan-shaped reflection surfaces 60 for increasing the sampling frequency evenly distributed on the same axis, and the fan-shaped reflection surfaces 60 are located in the annular shading structure 40; wherein, the fan-shaped reflection surfaces 60 are not limited to three, and the number can be more to increase the sampling frequency; an annular shading structure 40 is provided around the sampling wheel to enclose the sampling wheel 6 and reduce external light interference.

[0039] like Figure 1 and Figure 4 As shown, Figure 1 This is a structural exploded view of an embodiment of the utility model; Figure 4This is a front view of the counter of the utility model embodiment assembled on the bracket assembly; an annular shading structure 40 is formed on the bracket assembly 4, and the sampling wheel 6 is built in the annular shading structure 40. The control board 3 is mounted on the bracket assembly 4, and fits with the top surface of the annular shading structure 40 of the bracket assembly 4. The control board 3 is provided with a light emitting element and a light receiving element, and both the light emitting element and the light receiving element are located above the sampling wheel 6. When the gas meter is working and drives the sampling wheel 6 to rotate, the light emitting element is reflected by the fan-shaped reflection surface 60 on the sampling wheel 6, and the light receiving element receives the reflection signal. After processing the light signal, a metering signal can be obtained. In this embodiment, three fan-shaped reflection surfaces 60 are provided on the sampling wheel 6, which can triple the sampling accuracy. Of course, this number can be more and can be set according to needs.

[0040] The counter 2 is detachably mounted on the bracket assembly 4; a groove 41 for accommodating the counter 2 is formed on the bracket assembly 4, and a buckle 42 is formed at the top of the bracket assembly 4 near the groove 41. The counter 2 is built into the groove 41 and locked by the buckle 42; the counter 2 has a built-in stepper motor, and the stepper motor drives the counter character wheel to rotate through the internal gears.

[0041] A temperature and pressure sensor for real-time monitoring of gas temperature and pressure is provided inside the gas meter body 1, and the temperature and pressure sensor is electrically connected to the control board 3. The gas volume is corrected by a preset temperature and pressure compensation algorithm; at the same time, the controller sends instructions to the counter, and the stepper motor on the counter drives the counter transmission to achieve electromechanical synchronization; the gas temperature and pressure are collected in real time, and the gas volume is corrected by the temperature and pressure compensation algorithm, thereby improving the measurement accuracy.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention; various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0043] Although this article uses the figure marks in the figures more frequently: gas meter body 1, counter 2, control panel 3, bracket assembly 4, gear assembly 5, sampling wheel 6, active tooth 7, first gear 8, transition gear 10, transition cylinder 11, transition wheel 12, mounting hole 13, limiting groove 14, transmission gear 20, large gear 21, small gear 22, adjustment gear 30, large adjustment gear 31, small adjustment gear 32, annular shading structure 40, groove 41, buckle 42, fan-shaped reflecting surface 60, limiting rod 61, limiting block 62 and other terms, the possibility of using other terms is not excluded; these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An electromechanically synchronized electronic temperature and pressure compensation gas meter, characterized in that: The invention comprises a gas meter body (1), and a bracket assembly (4) mounted on the gas meter body (1); a control panel (3) and a counter (2) are mounted on the bracket assembly (4); a gear assembly (5) is arranged on the bracket assembly (4); and the gear assembly (5) meshes with a driving tooth (7) in the gas meter body (1) for transmission.

2. The electromechanically synchronized electronic temperature and pressure compensated gas meter according to claim 1, characterized in that: The gear assembly (5) comprises an adjusting gear (30), a first gear (8), a transmission gear (20), a transition gear (10) and a sampling wheel (6); wherein the adjusting gear (30) is meshed with the first gear (8); the driving gear (7) is connected to the internal movement of the gas meter body (1); the adjusting gear (30) is meshed with the driving gear (7); the driving gear (7) rotates to drive the adjusting gear (30) to be transmitted to the first gear (8); the first gear (8) is transmitted to the transition gear (10) through the transmission gear (20); and the transition gear (10) is connected to the sampling wheel (6).

3. The electromechanically synchronized electronic temperature and pressure compensated gas meter according to claim 2, characterized in that: The adjustment gear (30) comprises a large adjustment gear (31) and a small adjustment gear (32) which are coaxially arranged; the large adjustment gear (31) meshes with the driving gear (7), and the small adjustment gear (32) meshes with the first gear (8).

4. The electromechanically synchronized electronic temperature and pressure compensated gas meter according to claim 2, characterized in that: The transmission gear (20) comprises a large gear (21) and a small gear (22) which are coaxially arranged; the large gear (21) is meshed with the transition gear (10) for transmission, and the small gear (22) is meshed with the first gear (8) for transmission.

5. The electromechanically synchronized electronic temperature and pressure compensated gas meter according to claim 2, characterized in that: The transition gear (10) comprises a transition cylinder (11), and a transition wheel (12) is arranged on the outer side of the transition cylinder (11); wherein the transition wheel (12) meshes with the large gear (21), and a mounting hole (13) is formed on the inner side of the transition cylinder (11), and a plurality of limiting grooves (14) are arranged on the inner side of the transition cylinder (11), and the plurality of limiting grooves (14) are arranged along the circumference of the mounting hole (13). A limiting rod (61) is formed on the sampling wheel (6), and a plurality of limiting blocks (62) corresponding to the limiting grooves (14) are arranged on the limiting rod (61). When the sampling wheel (6) is connected to the transition gear (10), the limiting rod (61) passes through the mounting hole (13), and the limiting blocks (62) are embedded in the limiting grooves (14).

6. The electromechanically synchronized electronic temperature and pressure compensated gas meter according to claim 1, characterized in that: An annular light-shielding structure (40) is formed on the support assembly (4), and the sampling wheel (6) is built into the annular light-shielding structure (40).

7. The electromechanically synchronized electronic temperature and pressure compensated gas meter according to claim 6, characterized in that: The sampling wheel (6) has at least three fan-shaped reflection surfaces (60) evenly distributed on the same axis for increasing the sampling frequency, and the fan-shaped reflection surfaces (60) are located within the annular light shielding structure (40).

8. The electromechanically synchronized electronic temperature and pressure compensated gas meter according to claim 1, characterized in that: The control panel (3) is mounted on the bracket assembly (4) and fits the top surface of the annular light-shielding structure (40) of the bracket assembly (4).

9. The electromechanically synchronized electronic temperature and pressure compensated gas meter according to claim 1, characterized in that: The counter (2) is detachably mounted on the bracket assembly (4); a groove (41) for accommodating the counter (2) is formed on the bracket assembly (4); a buckle (42) is formed at the top of the bracket assembly (4) near the groove (41); the counter (2) is built into the groove (41) and is locked by the buckle (42).

10. The electromechanical synchronous electronic temperature and pressure compensation gas meter according to claim 1, characterized in that: A temperature and pressure sensor for real-time monitoring of gas temperature and pressure is provided inside the gas meter body (1), and the temperature and pressure sensor is electrically connected to the control panel (3).

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