CN221099800U - Movement assembly of gas meter - Google Patents

Abstract

The utility model relates to a movement assembly of a gas meter, which comprises a movement body and a vertical shaft; the machine core body is provided with an air outlet pipe; the outer side of the machine core body is provided with a side cover, and a metering cavity is formed between the machine core body and the side cover; a diaphragm assembly is arranged in the metering cavity; the diaphragm assembly is used for reciprocating in the metering cavity under the pressure of gas, and the second end of the vertical shaft is in transmission connection with the mandrel; the mandrel is connected with the valve cover through a transmission mechanism, a diaphragm sealing gasket is assembled between the diaphragm assembly and the side cover, a stepped inner groove is formed on one side of the machine core body, which is close to the side cover, and the diaphragm assembly and the diaphragm sealing gasket are arranged in the inner groove; the utility model has simple structure and simple manufacturing process, and is beneficial to improving the production efficiency and the yield; in the assembly process, the assembly difficulty is low, and the assembly efficiency is high; and meanwhile, the machine core body, the mounting bracket and the diaphragm assembly manufactured by adopting the novel structure can improve the performance and quality of products.

Description

Movement assembly of gas meter

Technical Field

The utility model relates to the field of gas meter manufacturing, in particular to a movement assembly inside a gas meter.

Background

Currently, the structural design of the internal movement of the gas meter and the production process have important influence on the precision, durability and stability of the gas meter. The prior gas meter has complex internal movement structure and complex manufacturing process, and is not beneficial to improving the production efficiency and durability. Meanwhile, in the assembly process of the inner core of the existing gas meter, the problems of high assembly difficulty and low assembly efficiency are often caused.

In view of the above-described problems, improvements are needed.

Disclosure of utility model

The utility model aims to provide a movement assembly of a gas meter, which has a simple structure and a simple manufacturing process and is beneficial to improving the production efficiency and the yield. Meanwhile, in the assembly process of the movement, the assembly difficulty is low, and the assembly efficiency is high.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a movement assembly of a gas meter comprises a movement body and a vertical shaft; the machine core body is provided with an air outlet pipe; the outer side of the machine core body is provided with a side cover, and a metering cavity is formed between the machine core body and the side cover; a diaphragm assembly is arranged in the metering cavity; the diaphragm assembly is used for reciprocating in the metering cavity under the pressure of gas, the diaphragm assembly is connected with the first end of the vertical shaft so as to drive the vertical shaft to move, and the second end of the vertical shaft is in transmission connection with the mandrel; the core shaft is connected with the valve cover through a transmission mechanism, a diaphragm sealing gasket is assembled between the diaphragm assembly and the side cover, an inner groove which is in a step shape is formed on one side of the core body, which is close to the side cover, of the core body, and the diaphragm assembly and the diaphragm sealing gasket are arranged in the inner groove.

As a preferable scheme of the utility model, the upper end of the vertical shaft is connected with the mandrel through a connecting rod; the core shaft drives the valve cover and the counter to rotate.

As a preferable scheme of the utility model, the machine core is provided with a mounting bracket, the mounting bracket is provided with a valve seat, and the transmission mechanism is arranged on the valve seat.

As a preferable scheme of the utility model, the transmission mechanism comprises a driving gear, a transmission gear is arranged on a connecting shaft sleeve between the mandrel and the valve cover, the transmission gear is meshed with the driving gear, the driving gear drives a transmission wheel to rotate, and the transmission wheel is connected with the counter.

As a preferable scheme of the utility model, the vertical shaft is sequentially provided with a toggle joint, a rod body and a rocker arm from top to bottom; the toggle joint, the rocker arm and the rod body are mutually fixed.

As a preferable mode of the utility model, one end of the rocker arm extends upwards along the height direction to form a rotating part; the rotating part is rotationally connected with the diaphragm assembly.

As a preferred scheme of the utility model, the membrane assembly comprises a membrane, a membrane clamping plate and a bearing membrane clamping plate which are sequentially arranged; a positioning column is arranged on one side, close to the membrane clamping plate, of the bearing membrane clamping plate, and mounting holes and connecting holes are respectively formed in the positions, corresponding to the mounting columns, of the membrane clamping plate and the membrane; the locating column passes through the mounting hole and the connecting hole in sequence, so that the bearing film clamping plate connects the film clamping plate with the diaphragm.

As a preferable mode of the present utility model, the rocker arm includes a first member and a second member, the first member and the second member are disposed obliquely, and the rotating portion is disposed at the end of the second member.

As a preferable mode of the present utility model, the side cover is formed with a plurality of first through holes; correspondingly, a plurality of second through holes and third through holes corresponding to the first through holes are respectively formed on the diaphragm sealing pad and the diaphragm; the first through hole, the second through hole and the third through hole are fastened by screws.

As a preferable scheme of the utility model, a plurality of mounting columns are arranged on the inner groove of the machine body, the plurality of mounting columns are circumferentially and equidistantly arranged on the inner groove, the tops of the mounting columns are in an arc structure, and when the side cover is connected with the diaphragm sealing pad and the diaphragm, the mounting columns sequentially penetrate through the second through hole and the third through hole.

The beneficial effects of the utility model are as follows:

1. the utility model has simple structure and simple manufacturing process, and is beneficial to improving the production efficiency and the yield; in the assembly process, the assembly difficulty is low, and the assembly efficiency is high. And meanwhile, the machine core body, the mounting bracket and the diaphragm assembly manufactured by adopting the novel structure can improve the performance and quality of products.

2. The utility model has ingenious design, in the assembling process, the parts such as the machine body, the mounting bracket, the vertical shaft and the like are assembled according to the design requirement, and the machine body, the mounting bracket and the diaphragm assembly manufactured by adopting the new structure have better compatibility and stability, can greatly reduce the assembling difficulty and the assembling time, and improve the production efficiency.

3. The utility model reduces some complex redundant structures of the machine core body, properly reduces the volume, reduces the cost to a certain extent under the condition of unchanged metering cavity, improves the body cavity and the air passage of the machine core, improves the smoothness of the air passage structure, reduces the resistance when the gas flows through the air passage, and therefore, has certain optimization on the pressure loss; meanwhile, the diaphragm pressing strip is removed, the edge of the side cover is used for directly pressing the diaphragm, the production efficiency of a product is improved, the product cost is reduced, the mounting bracket is miniaturized and portable, the mounting is simple, the size is reduced, the layout space is optimized, the diaphragm sealing gasket is used for sealing in the side cover in the gluing process, the whole sealing performance of the metering cavity is improved by fixing the diaphragm sealing gasket by screws, the metering error is prevented from being influenced by internal leakage, and the convenience of the movement assembly in the subsequent repairing process is optimized.

Drawings

FIG. 1 is a schematic view of a movement assembly within a gas meter according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the movement assembly inside the gas meter according to the embodiment of the present utility model;

FIG. 3 is a schematic view of the diaphragm assembly inside the gas meter according to the embodiment of the present utility model;

FIG. 4 is a schematic view of a rocker arm according to an embodiment of the present utility model;

FIG. 5 is a schematic structural diagram of a machine core according to an embodiment of the present utility model;

Reference numerals: the device comprises a machine core body 1, an inner groove 1-1, a mounting column 1-2, an arc structure 1-3, a vertical shaft 2, an air outlet pipe 3, a toggle 4, a connecting rod 5, a valve cover 6, a mandrel 7, a driving gear 8, a valve seat 9, a mounting bracket 10, a side cover 11, a first through hole 11-1, a rod body 20, a screw 21, a diaphragm gasket 23, a second through hole 23-1, a diaphragm 24, a connecting hole 24-1, a third through hole 24-2, a diaphragm clamping plate 25, a mounting hole 25-1, a bearing diaphragm clamping plate 26, a positioning column 26-1, a rocker arm 27, a rotating part 27-1, a first part 27-2, a second part 27-3, a transmission gear 30, a metering cavity 31 and a driving wheel 32.

Detailed Description

The embodiments of the present utility model will be described in detail below.

Examples:

As shown in fig. 1-5, a movement assembly of a gas meter comprises a movement body 1 and a vertical shaft 2; the machine core body 1 is provided with an air outlet pipe 3; the outer side of the machine core body 1 is provided with a side cover 11, and a metering cavity 31 is formed between the machine core body 1 and the side cover 11; the metering cavity 31 is internally provided with a diaphragm assembly; the diaphragm assembly is used for reciprocating in the metering cavity 31 under the pressure of gas, the diaphragm assembly is connected with the first end of the vertical shaft 2 so as to drive the vertical shaft 2 to move, and the second end of the vertical shaft 2 is in transmission connection with the mandrel 7; the mandrel 7 is connected with the valve cover 6 through a transmission mechanism, a diaphragm sealing gasket 23 is assembled between the diaphragm assembly and the side cover 11, an inner groove 1-1 which is in a step shape is formed on one side of the machine core 1 close to the side cover 11, and the diaphragm assembly and the diaphragm sealing gasket 23 are arranged in the inner groove 1-1; the utility model has simple structure and simple manufacturing process, and is beneficial to improving the production efficiency and the yield; in the assembly process, the assembly difficulty is low, and the assembly efficiency is high. And meanwhile, the machine core body, the mounting bracket and the diaphragm assembly manufactured by adopting the novel structure can improve the performance and quality of products.

The upper end of the vertical shaft 2 is connected with a mandrel 7 through a connecting rod 5; the mandrel 7 drives the valve cover 6 and the counter to rotate; the machine core 1 is provided with a mounting bracket 10, the mounting bracket 10 is provided with a valve seat 9, and the transmission mechanism is arranged on the valve seat 9; the utility model reduces some complex redundant structures of the machine core body, properly reduces the volume, reduces the cost to a certain extent under the condition of unchanged metering cavity, improves the body cavity and the air passage of the machine core, improves the smoothness of the air passage structure, reduces the resistance when the gas flows through the air passage, and therefore, has certain optimization on the pressure loss; meanwhile, the diaphragm pressing strip is removed, the edge of the side cover is used for directly pressing the diaphragm, the production efficiency of a product is improved, the cost of the product is reduced, the mounting bracket is miniaturized and portable, the size is reduced, and the layout space is optimized.

Meanwhile, the utility model has ingenious design, in the assembling process, the parts such as the machine core, the mounting bracket and the vertical shaft are assembled according to the design requirement, and the machine core, the mounting bracket and the diaphragm assembly manufactured by adopting the new structure have better compatibility and stability, can greatly reduce the assembling difficulty and the assembling time, and improve the production efficiency.

The transmission mechanism comprises a driving gear 8, a transmission gear 30 is arranged on a connecting shaft sleeve between the mandrel 7 and the valve cover 6, the transmission gear 30 is meshed with the driving gear 8, the driving gear 8 drives a driving wheel 32 to rotate, and the driving wheel 32 is connected with the counter.

The vertical shaft 2 is sequentially provided with a toggle joint 4, a rod body 20 and a rocker arm 27 from top to bottom; the toggle 4, the rocker 27 and the rod 20 are all fixed with each other.

One end of the rocker arm 27 extends upward in the height direction thereof to form a rotating portion 27-1; the rotating part 27-1 is rotatably connected with the diaphragm assembly. During installation, the rotation of one end of the rocker arm 27 is installed on the bearing film clamping plate 26 of the diaphragm assembly, so that the rocker arm 27 can rotate on the bearing film clamping plate 26, the accuracy of the gas meter is improved, and the service life is prolonged.

The membrane assembly comprises a membrane 24, a membrane clamping plate 25 and a bearing membrane clamping plate 26 which are sequentially arranged; a positioning column 26-1 is arranged on one side, close to the membrane clamping plate 25, of the bearing membrane clamping plate 26, and mounting holes 25-1 and connecting holes 24-1 are respectively formed in positions, corresponding to the mounting columns 26-1, of the membrane clamping plate 25 and the membrane 24; the positioning column 26-1 sequentially passes through the mounting hole 25-1 and the connecting hole 24-1, so that the bearing film clamping plate 26 connects the film clamping plate 25 and the film 24; the membrane clamping plate 25 and the bearing membrane clamping plate 26 are sequentially connected to the membrane 24, the membrane 24 is clamped, excessive fixing parts are not required to be processed on the membrane clamping plate 25 and the bearing membrane clamping plate 26 to fix the membrane 24, and processing cost is reduced.

The bearing membrane clamping plate 26 and the membrane clamping plate 25 have the same shape and size in the embodiment; the volume of the fuel gas which is pumped back and forth in the metering cavity 31 by the diaphragm 24 is the same, so that the structural stability is improved, and the accuracy of the fuel gas meter is improved.

The rocker arm 27 comprises a first part 27-2 and a second part 27-3, the first part 27-2 and the second part 27-3 are obliquely arranged, and the rotating part 27-1 is arranged at the tail end of the second part 27-3; the rotating part 27-1, the first component 27-2 and the second component 27-3 are fixedly connected, and are integrally formed, so that the structural strength and the integral firmness of the rocker arm 27 are improved, and the use safety is further ensured.

The side cover 11 is formed with a plurality of first through holes 11-1; correspondingly, the diaphragm sealing pad 23 and the diaphragm 24 are respectively provided with a plurality of second through holes 23-1 and third through holes 24-2 corresponding to the first through holes 11-1; the first through hole 11-1, the second through hole 23-1 and the third through hole 24-2 are fastened by the screw 21; in this embodiment, the side cover 11 cancels the conventional gluing process, uses the diaphragm gasket 23 to seal and uses the screw 21 to fix, so that the overall tightness of the metering cavity 31 is improved, the metering error is prevented from being affected by internal leakage, and the convenience of the movement assembly in the subsequent repairing process is optimized.

The inner groove 1-1 of the machine core body 1 is provided with a plurality of mounting columns 1-2, the plurality of mounting columns 1-2 are circumferentially equidistantly distributed on the inner groove 1-1, the top of each mounting column 1-2 is in an arc structure 1-3, and when the side cover 11 is connected with the diaphragm sealing pad 23 and the diaphragm 24, the mounting columns 1-2 sequentially penetrate through the second through hole 23-1 and the third through hole 24-2; the utility model is provided with a plurality of mounting posts 1-2, and the membrane is sleeved on the corresponding mounting post 1-2 through the third through hole 24-2 and the second through hole 23-1 on the membrane, so that the utility model has reasonable design and labor-saving assembly operation; the circular arc structure 1-3 is formed on the mounting column 1-2, so that the assembly efficiency of the mounting column 1-2, the diaphragm sealing gasket 23 and the diaphragm 24 is improved, the diaphragm sealing gasket 23 and the diaphragm 24 are attached to the inner groove 1-1 of the machine core body 1 under the action of the mounting column 1-2, and the assembled product is good in tightness and low in defective rate.

In addition, the movement assembly of the gas meter, disclosed by the utility model, has the advantages of light weight, corrosion resistance, fatigue resistance, creep resistance and wear resistance, and the movement assembly is manufactured by adopting high-strength engineering plastic Polyoxymethylene (POM) for the movement body 1, the side cover 11, the mounting bracket 10, the gas outlet pipe 3, the mandrel 4, the transmission gear 30, the connecting rod 5 and the like. The valve seat 9 and the valve cover 6 are often applied to a movement mechanism of a movement assembly and are made of plastic powder (phenolic aldehyde) materials, and the valve seat has the advantages of stable structure, good wear resistance and good high-temperature resistance. The vertical shaft is made of stainless steel materials, and has the advantages of abrasion resistance and corrosion resistance; the diaphragm 24 is made of modified nitrile rubber material, has soft texture, saves labor in overturning, is wear-resistant and folding-resistant, does not stretch and deform in the pressure range of use, is airtight, and is resistant to gas corrosion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals are used more herein: the engine body 1, the inner groove 1-1, the mounting post 1-2, the circular arc structure 1-3, the vertical shaft 2, the air outlet pipe 3, the toggle 4, the connecting rod 5, the valve cover 6, the mandrel 7, the driving gear 8, the valve seat 9, the mounting bracket 10, the side cover 11, the first through hole 11-1, the rod body 20, the screw 21, the diaphragm gasket 23, the second through hole 23-1, the diaphragm 24, the connecting hole 24-1, the third through hole 24-2, the diaphragm clamping plate 25, the mounting hole 25-1, the bearing diaphragm clamping plate 26, the positioning post 26-1, the rocker arm 27, the rotating part 27-1, the first part 27-2, the second part 27-3, the transmission gear 30, the metering cavity 31, the transmission wheel 32 and the like are terms, but the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (10)

1. A movement assembly for a gas meter, comprising: comprises a machine core body (1) and a vertical shaft (2); an air outlet pipe (3) is arranged on the machine core body (1); the outside of the machine core body (1) is provided with a side cover (11), and a metering cavity (31) is formed between the machine core body (1) and the side cover (11); a diaphragm assembly is assembled in the metering cavity (31); the diaphragm assembly is connected with the first end of the vertical shaft (2) so as to drive the vertical shaft (2) to move, and the second end of the vertical shaft (2) is in transmission connection with the mandrel (7); the core shaft (7) is connected with the valve cover (6) through a transmission mechanism, a diaphragm sealing gasket (23) is assembled between the diaphragm assembly and the side cover (11), an inner groove (1-1) which is in a step shape is formed on one side, close to the side cover (11), of the machine core body (1), and the diaphragm assembly and the diaphragm sealing gasket (23) are arranged in the inner groove (1-1).

2. A movement assembly for a gas meter as defined in claim 1, wherein: the upper end of the vertical shaft (2) is connected with the mandrel (7) through a connecting rod (5); the core shaft (7) drives the valve cover (6) and the counter to rotate.

3. A movement assembly for a gas meter as defined in claim 1, wherein: the machine core body (1) is provided with a mounting bracket (10), the mounting bracket (10) is provided with a valve seat (9), and the transmission mechanism is arranged on the valve seat (9).

4. A movement assembly for a gas meter according to claim 3, wherein: the transmission mechanism comprises a driving gear (8), a transmission gear (30) is arranged on a connecting shaft sleeve between the mandrel (7) and the valve cover (6), the transmission gear (30) is meshed with the driving gear (8), the driving gear (8) drives a driving wheel (32) to rotate, and the driving wheel (32) is connected with the counter.

5. A movement assembly for a gas meter as defined in claim 1, wherein: the vertical shaft (2) is sequentially provided with a toggle joint (4), a rod body (20) and a rocker arm (27) from top to bottom; the toggle joint (4), the rocker arm (27) and the rod body (20) are mutually fixed.

6. A movement assembly for a gas meter according to claim 5, wherein: one end of the rocker arm (27) extends upwards along the height direction to form a rotating part (27-1); the rotating part (27-1) is rotatably connected with the diaphragm assembly.

7. A movement assembly for a gas meter as defined in claim 6, wherein: the membrane assembly comprises a membrane (24), a membrane clamping plate (25) and a bearing membrane clamping plate (26) which are sequentially arranged; a positioning column (26-1) is arranged on one side, close to the membrane clamping plate (25), of the bearing membrane clamping plate (26), and mounting holes (25-1) and connecting holes (24-1) are respectively formed in positions, corresponding to the mounting columns (1-2), of the membrane clamping plate (25) and the membrane (24); the positioning column (26-1) sequentially passes through the mounting hole (25-1) and the connecting hole (24-1), so that the bearing film clamping plate (26) connects the film clamping plate (25) with the film (24).

8. A movement assembly for a gas meter as defined in claim 6, wherein: the rocker arm (27) comprises a first component (27-2) and a second component (27-3), the first component (27-2) and the second component (27-3) are obliquely arranged, and the rotating part (27-1) is arranged at the tail end of the second component (27-3).

9. A movement assembly for a gas meter as defined in claim 1, wherein: a plurality of first through holes (11-1) are formed in the side cover (11); correspondingly, a plurality of second through holes (23-1) and third through holes (24-2) corresponding to the first through holes (11-1) are respectively formed on the diaphragm sealing pad (23) and the diaphragm (24); the first through hole (11-1), the second through hole (23-1) and the third through hole (24-2) are fastened by a screw (21).

10. A movement assembly for a gas meter as defined in claim 1, wherein: a plurality of mounting columns (1-2) are arranged on an inner groove (1-1) of the machine core body (1), the plurality of mounting columns (1-2) are circumferentially and equidistantly distributed on the inner groove (1-1), the top of each mounting column (1-2) is of an arc structure (1-3), and when a side cover (11) is connected with a diaphragm sealing pad (23) and a diaphragm (24), each mounting column (1-2) sequentially penetrates through a second through hole (23-1) and a third through hole (24-2).