CN218761745U

CN218761745U - Gas motor valve

Info

Publication number: CN218761745U
Application number: CN202222954171.0U
Authority: CN
Inventors: 王益阳; 吴建平; 陈征; 徐存毅
Original assignee: Cixi Sanyang Electrics Co ltd
Current assignee: Cixi Sanyang Electrics Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-28
Anticipated expiration: 2032-11-07

Abstract

The utility model relates to a valve field discloses a gas motor valve, its technical scheme main points are including the shell, valve mechanism and set up the drive mechanism in the shell, drive mechanism includes the lid, the ratchet portion, axis body and transmission portion, structural style and transmission through a ratchet and pawl, realize the reciprocating motion of rack, thereby realize the valve seal to the switching of gas port, moreover, the steam generator is simple in structure, compare in the cooperation mode of two ratchets and pawl, the setting of spare part has been reduced, the cost is saved, and the external diameter size of connecting gear has been reduced, occupation space has been reduced, make the structure of whole shell reduce.

Description

Gas motor valve

Technical Field

The utility model relates to a valve field, more specifically the utility model relates to a gas motor valve that says so.

Background

The gas motor valve is applied to the gas meter to control the opening and closing of the gas meter, and the opening and closing of the gas motor valve are realized by controlling the opening and closing of the gas port through valve sealing;

for example, the patent numbers are: the motor valve for the gas meter in CN216200995U uses a ratchet transmission mechanism, wherein the ratchet transmission mechanism uses a first ratchet box, two pawls and a second ratchet box, and the transmission is performed in a manner of two sets of ratchets and pawls, so that more parts are required, the cost is increased, the occupied space is increased, and the size of the whole motor valve is increased.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a gas motor valve for the mode through one set of ratchet and pawl is carried out the transmission.

In order to achieve the above purpose, the utility model provides a following technical scheme: a gas motor valve comprises a shell, a valve mechanism and a transmission mechanism arranged in the shell, wherein the transmission mechanism comprises a cover body, a ratchet part, a shaft body and a transmission part, the ratchet part comprises a ratchet wheel and a pawl corresponding to the ratchet wheel, the shaft body penetrates through the ratchet wheel and is fixedly connected with the pawl, the ratchet wheel is rotatably connected with a connecting gear, the shaft body is fixedly connected with a transmission gear, the transmission gear is meshed with the connecting gear, and the cover body is rotatably connected with a driven gear;

the valve mechanism comprises a rack which is meshed with the driven gear;

the transmission mechanism drives the shaft body to rotate in a first direction so that the transmission gear is meshed with the driven gear, the transmission mechanism drives the shaft body to rotate in a second direction so that the transmission gear is disengaged from the driven gear, and the first direction is opposite to the second direction.

As a further improvement of the present invention, the valve mechanism further includes a housing and a valve seal, the valve seal is fixedly connected to the rack, a fuel port is provided on the housing, and a reset member is provided between the housing and the rack.

As a further improvement of the utility model, the piece that resets is compression spring, the one end that resets with the rack offsets, the other end that resets with the casing offsets.

As a further improvement of the present invention, the rack is detachably connected to the bellows between the housing.

As a further improvement, fixedly connected with decides reed and movable reed on the lid, the movable reed is located decide the reed with between the rack, the movable reed with the rack offsets, the rack orientation one side of movable reed is formed with arc portion.

As a further improvement, the movable spring piece and all be provided with first copper terminal on the fixed spring piece, first copper terminal extends the shell, the joint have on the shell with the first encapsulating lid that first copper terminal corresponds, first encapsulating is covered and has been seted up first injecting glue hole.

As a further improvement of the present invention, the transmission portion includes a motor and a gear set, the motor passes through the gear set with the shaft body transmission is connected.

As a further improvement of the utility model, the output shaft fixedly connected with driving gear of motor, the gear train including rotate connect in first pivot, second pivot and third pivot on the lid, first gear of fixedly connected with and second gear in the first pivot, fixedly connected with third gear and fourth gear in the second pivot, fixedly connected with fifth gear and sixth gear in the third pivot, fixedly connected with input gear on the axis body, the driving gear with first gear engagement, the second gear with third gear engagement, the fourth gear with fifth gear engagement, the sixth gear with input gear engagement.

As a further improvement, two second copper terminals are drawn out on the motor, the second copper terminal extends the shell, the joint have on the shell in the second encapsulating lid that the second copper terminal corresponds, the second encapsulating is covered and has been seted up the second injecting glue hole.

As a further improvement of the present invention, the housing is detachably connected to the housing, and the housing is provided with a seal ring therebetween.

The utility model has the advantages that: the utility model discloses in structural style and the transmission through a ratchet and pawl, realize the reciprocating motion of rack to realize the valve seal to the switching of gas port, simple structure compares in the cooperation mode of two ratchets and pawl, has reduced the setting of spare part, has saved the cost, and has reduced the external diameter size of connecting the gear, has reduced occupation space, makes the structure of whole shell reduce.

Drawings

FIG. 1 is a schematic view of the present invention showing a first glue pouring cover;

FIG. 2 is a schematic view of the second glue pouring cap of the present invention;

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic structural view of the ratchet wheel portion of the present invention;

fig. 5 is a schematic structural view of the present invention toward the third rotating shaft;

fig. 6 is a schematic structural view of the present invention toward the first axis of rotation;

fig. 7 is a schematic structural view of the driven gear and the rack of the present invention.

Reference numerals: 1. a housing; 2. a valve mechanism; 21. a rack; 211. an arc-shaped portion; 22. a housing; 221. a gas port; 23. valve sealing; 24. a reset member; 25. a bellows; 31. a cover body; 311. fixing a reed; 312. a movable spring plate; 32. a ratchet portion; 321. ratchet wheel 322, pawl; 33. a shaft body; 341. a motor; 342. a gear set; 3421. a first rotating shaft; 3422. a second rotating shaft; 3423. a third rotating shaft; 3424. a first gear; 3425. a second gear; 3426. a third gear; 3427. a fourth gear; 3428. a fifth gear; 3429. a sixth gear; 35. a connecting gear; 36. a transmission gear; 37. a driven gear; 38. a driving gear; 39. an input gear; 4. a first copper terminal; 5. a first glue pouring cover; 51. a first glue injection hole; 6. a second copper terminal; 7. a second glue pouring cover; 71. a second glue injection hole; 8. and (5) sealing rings.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 7, the gas motor valve of the present embodiment includes a housing 1, a valve mechanism 2, and a transmission mechanism disposed in the housing 1, where the transmission mechanism includes a cover 31, a ratchet portion 32, a shaft body 33, and a transmission portion, the ratchet portion 32 includes a ratchet 321 and a pawl 322 corresponding to the ratchet 321, the shaft body 33 passes through the ratchet 321 and is fixedly connected to the pawl 322, the ratchet 321 is rotatably connected to a connecting gear 35, the shaft body 33 is fixedly connected to a transmission gear 36, the transmission gear 36 is engaged with the connecting gear 35, and the cover 31 is rotatably connected to a driven gear 37;

the valve mechanism 2 comprises a rack 21, and the rack 21 is meshed with a driven gear 37;

the transmission mechanism drives the shaft body 33 to rotate in a first direction so as to enable the transmission gear 36 to be meshed with the driven gear 37, the transmission mechanism drives the shaft body 33 to rotate in a second direction so as to enable the transmission gear 36 to be disengaged from the driven gear 37, and the first direction is opposite to the second direction;

the first direction may be counterclockwise, the second direction may be clockwise, when the shaft 33 rotates in the counterclockwise direction, the pawl 322 may be driven to rotate counterclockwise, and a certain external force is required for the elastic deformation capability of the pawl 322, initially, the pawl 322 may drive the ratchet 321 to rotate counterclockwise, so as to drive the connecting gear 35 to revolve counterclockwise around the shaft 33, and the connecting gear 35 may be engaged with the transmission gear 36, when the connecting gear 35 is engaged with the driven gear 37, the ratchet 321 may receive a blocking force generated by the engagement of the connecting gear 35 and the driven gear 37, so that the transmission of the ratchet 321 is stopped, so that the pawl 322 elastically deforms, the counterclockwise rotation of the pawl 322 may not drive the ratchet 321 to rotate, but the counterclockwise rotation of the shaft 33 may drive the transmission gear 36 to simultaneously rotate, so that the transmission gear 36 drives the connecting gear 35 to rotate, through the transmission, the driven gear 37 rotates counterclockwise, the rack 21 is driven to move toward the housing 1 side, so that the rack 21 drives the valve seal 23 to move, and the gas port 221 is opened;

when the shaft body 33 rotates clockwise, the pawl 322 drives the ratchet wheel 321 to rotate clockwise, so that the connecting gear 35 revolves clockwise around the shaft body 33, the connecting gear 35 is disengaged from the driven gear 37, the rack 21 is reset under the restoring force of the resetting piece 24, and the valve seal 23 is enabled to seal the gas port 221 again;

only one ratchet wheel 321 and one pawl 322 are used in the whole process, and compared with the matching mode of the two ratchet wheels 321 and the pawl 322, the arrangement of parts is reduced, the cost is saved, the size of the outer diameter of the connecting gear 35 is reduced, the occupied space is reduced, and the structure of the whole shell 1 is reduced.

Referring to fig. 3 and 7, the valve mechanism 2 further includes a housing 22 and a valve seal 23, the valve seal 23 is fixedly connected to the rack 21, the rack 21 is connected to a support in a snap-fit manner, the valve seal 23 is detachably connected to the support, stability between the rack 21 and the valve seal 23 is increased, a gas port 221 is formed in the housing 22, an air inlet is further formed in the housing 22, a circulation chamber is formed in the housing 22, gas enters the circulation chamber through the air inlet and flows out of the gas port 221, the valve seal 23 is used for sealing the gas port 221 and moves along with the rack 21, so that opening and closing of the gas port 221 by the valve seal 23 are controlled, a reset member 24 is arranged between the housing 22 and the rack 21, and the reset member 24 resets the rack 21 through restoring force.

Reset 24 and be compression spring, compression spring's life is longer, and compression spring overlaps and locates on the rack 21, and the one end that resets 24 offsets with rack 21, and the other end that resets 24 offsets with casing 22.

The corrugated pipe 25 is detachably connected between the rack 21 and the shell 22, the corrugated pipe 25 has elasticity and can stretch along with the movement of the rack 21, and the arrangement of the corrugated pipe 25 can prevent parts such as a compression spring and the like from being corroded by gas;

referring to fig. 3, the shell 22 is detachably connected with the housing 1, and a sealing ring 8 is arranged between the housing 1 and the shell 22, and the sealing ring 8 is arranged between the upper shell and the shell 22, so as to further prevent the leakage of the gas.

Referring to fig. 4 and fig. 7, a fixed spring 311 and a movable spring 312 are fixedly connected to the cover 31, the cover 31 includes an upper cover and a lower cover, the upper cover and the lower cover are detachably connected, the lower cover is detachably connected to the motor 341, the fixed spring 311 and the movable spring 312 are both fixedly connected to the upper cover, the movable spring 312 is located between the fixed spring 311 and the rack 21, the movable spring 312 abuts against the rack 21, the rack 21 abuts against the rack 21, an arc portion 211 is formed on one side of the rack 21 facing the movable spring 312, when the rack 21 moves towards one side of the housing 1, the movable spring 312 abuts against the arc portion 211, so that the movable spring 312 elastically deforms, and the fixed spring 311 abuts against the movable spring 312, when the movable spring 312 and the fixed spring 311 are connected, the movable spring 312 is connected, so as to control the motor 341 to stop working, so as to indicate that the rack 21 moves in place, and at this time, the gas port 221 is opened.

All be provided with first copper terminal 4 on movable reed 312 and the reed 311, first copper terminal 4 extends shell 1, the joint has the first encapsulating lid 5 that corresponds with first copper terminal 4 on the shell 1, first encapsulating hole 51 has been seted up on the first encapsulating lid 5, be used for the welding power cord on the first copper terminal 4, first copper terminal 4 extends the epitheca, and it is sealed between first copper terminal 4 and the epitheca, can set up sealed the pad, and after the power cord has been welded, pour into sealed glue into through first encapsulating hole 51, prevent splice and gas contact on the one hand, realize anticorrosive, on the other hand increases the leakproofness, prevent that gas from corroding motor 341.

Referring to fig. 5 and 6, the transmission part includes a motor 341 and a gear set 342, the motor 341 is in transmission connection with the shaft 33 through the gear set 342, and the gear set 342 is used for reducing the output speed of the motor 341 so as to control the rotation speed of the shaft 33.

A driving gear 38 is fixedly connected to an output shaft of the motor 341, an outer diameter of the driving gear 38 is smaller than an outer diameter of the first gear 3424, the gear set 342 includes a first rotating shaft 3421, a second rotating shaft 3422 and a third rotating shaft 3423 which are rotatably connected to the cover 31, the first rotating shaft 3421, the second rotating shaft 3422 and the third rotating shaft 3423 are rotatably connected to the lower cover, a shaft body 33 is rotatably connected to the lower cover and extends upward through the upper cover, the first gear 3424 and the second gear 3425 are fixedly connected to the first rotating shaft 3421, an outer diameter of the second gear 3425 is smaller than an outer diameter of the first gear 3424, the third gear 3426 and the fourth gear 3427 are fixedly connected to the second rotating shaft 3422, an outer diameter of the fourth gear 3427 is smaller than an outer diameter of the third gear 3426, a fifth gear 3428 and a sixth gear 3429 are fixedly connected to the third rotating shaft 3423, an outer diameter of the sixth gear 3429 is smaller than an outer diameter of the fifth gear 3428, an input gear 39 is fixedly connected to the shaft body 33, a driving gear 38 is engaged with the first gear 3424, a second gear 3425 is engaged with the third gear 3426, a fourth gear 3427 is engaged with the fifth gear 3428, a sixth gear 3429 is engaged with the input gear 39, an outer diameter of the input gear 39 is larger than an outer diameter of the sixth gear 3429, the motor 341 rotates to drive the driving gear 38 to rotate, the driving gear 38 is engaged with the first gear 3424 to drive the first shaft 3421 to rotate, the second gear 3425 rotates, the second gear 3425 is engaged with the third gear 3426 to drive the second shaft 3422 to rotate, the sixth gear 3429 rotates, and the shaft body 33 rotates due to the engagement of the sixth gear 3429 with the input gear 39.

Two second copper terminals 6 are led out on the motor 341, the second copper terminals 6 extend out of the shell 1, the joint is provided with a second glue pouring cover 7 corresponding to the second copper terminals 6 on the shell 1, a second glue pouring hole 71 is formed in the second glue pouring cover 7, the second copper terminals 6 extend out of the lower shell, the second copper terminals 6 are used for being welded with a power line, so that the motor 341 is powered and controlled, the second copper terminals 6 and the lower shell are sealed, a sealing gasket can be arranged, after the power line is welded, sealant is injected through the second glue pouring hole 71, on one hand, the welding position is prevented from being contacted with gas, corrosion prevention is realized, on the other hand, the sealing property is increased, and the gas is prevented from entering the shell 1.

The working principle is as follows: when the gas burner is in operation, the motor 341 rotates counterclockwise, the shaft body 33 rotates counterclockwise through the gear set 342, so that the pawl 322 rotates counterclockwise, the pawl 322 drives the ratchet 321 to rotate counterclockwise, so as to drive the connecting gear 35 to revolve counterclockwise around the shaft body 33, and the connecting gear 35 is meshed with the transmission gear 36, when the connecting gear 35 is meshed with the driven gear 37, the ratchet 321 is subjected to a blocking force generated by the meshing of the connecting gear 35 and the driven gear 37, so that the ratchet 321 stops transmission, so that the pawl 322 elastically deforms, the counterclockwise rotation of the pawl 322 does not drive the ratchet 321 to rotate, but the counterclockwise rotation of the shaft body 33 drives the transmission gear 36 to simultaneously rotate, so that the transmission gear 36 drives the connecting gear 35 to rotate, and through transmission, the driven gear 37 rotates counterclockwise, the rack 21 is driven to move towards one side of the housing 1, so that the rack 21 drives the valve seal 23 to move, and the gas port 221 is opened;

when the motor 341 rotates clockwise, the shaft 33 is driven to rotate clockwise, the ratchet 321 is driven to rotate clockwise by the pawl 322, so that the connecting gear 35 revolves clockwise around the shaft 33, the connecting gear 35 disengages from the driven gear 37, the rack 21 is reset under the restoring force of the reset element 24, and the valve seal 23 re-seals the gas port 221.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.

Claims

1. A gas motor valve characterized in that: the valve mechanism comprises a shell (1), a valve mechanism (2) and a transmission mechanism arranged in the shell (1), wherein the transmission mechanism comprises a cover body (31), a ratchet wheel part (32), a shaft body (33) and a transmission part, the ratchet wheel part (32) comprises a ratchet wheel (321) and a pawl (322) corresponding to the ratchet wheel (321), the shaft body (33) penetrates through the ratchet wheel (321) to be fixedly connected with the pawl (322), the ratchet wheel (321) is rotatably connected with a connecting gear (35), the shaft body (33) is fixedly connected with a transmission gear (36), the transmission gear (36) is meshed with the connecting gear (35), and the cover body (31) is rotatably connected with a driven gear (37);

the valve mechanism (2) comprises a rack (21), and the rack (21) is meshed with the driven gear (37);

the transmission mechanism drives the shaft body (33) to rotate in a first direction so that the transmission gear (36) is meshed with the driven gear (37), the transmission mechanism drives the shaft body (33) to rotate in a second direction so that the transmission gear (36) is disengaged from the driven gear (37), and the first direction is opposite to the second direction.

2. A gas motor valve according to claim 1, characterized in that: the valve mechanism (2) further comprises a shell (22) and a valve seal (23), the valve seal (23) is fixedly connected with the rack (21), a gas port (221) is formed in the shell (22), and a reset piece (24) is arranged between the shell (22) and the rack (21).

3. A gas motor valve according to claim 2, characterized in that: the reset piece (24) is a compression spring, one end of the reset piece (24) is abutted against the rack (21), and the other end of the reset piece (24) is abutted against the shell (22).

4. A gas motor valve according to claim 2, characterized in that: a corrugated pipe (25) is detachably connected between the rack (21) and the shell (22).

5. A gas motor valve according to claim 1, characterized in that: the spring pressing cover is characterized in that a fixed spring leaf (311) and a movable spring leaf (312) are fixedly connected to the cover body (31), the movable spring leaf (312) is located between the fixed spring leaf (311) and the rack (21), the movable spring leaf (312) is abutted against the rack (21), and an arc-shaped part (211) is formed on one side, facing the movable spring leaf (312), of the rack (21).

6. The gas motor valve of claim 5, wherein: the movable spring leaf (312) and the fixed spring leaf (311) are provided with first copper terminals (4), the first copper terminals (4) extend out of the shell (1), a first glue pouring cover (5) corresponding to the first copper terminals (4) is clamped on the shell (1), and first glue pouring holes (51) are formed in the first glue pouring cover (5).

7. A gas motor valve according to claim 1, characterized in that: the transmission part comprises a motor (341) and a gear set (342), and the motor (341) is in transmission connection with the shaft body (33) through the gear set (342).

8. A gas motor valve according to claim 7, characterized in that: an output shaft of the motor (341) is fixedly connected with a driving gear (38), the gear set (342) comprises a first rotating shaft (3421), a second rotating shaft (3422) and a third rotating shaft (3423) which are rotatably connected to the cover body (31), the first rotating shaft (3421) is fixedly connected with a first gear (3424) and a second gear (3425), the second rotating shaft (3422) is fixedly connected with a third gear (3426) and a fourth gear (3427), the third rotating shaft (3423) is fixedly connected with a fifth gear (3428) and a sixth gear (3429), the shaft body (33) is fixedly connected with an input gear (39), the driving gear (38) is meshed with the first gear (3424), the second gear (3425) is meshed with the third gear (3426), the fourth gear (3427) is meshed with the fifth gear (3428), and the sixth gear (29) is meshed with the input gear (3439).

9. A gas motor valve according to claim 7, characterized in that: two second copper terminals (6) are led out from the motor (341), the second copper terminals (6) extend out of the shell (1), a second glue pouring cover (7) corresponding to the second copper terminals (6) is clamped on the shell (1), and a second glue pouring hole (71) is formed in the second glue pouring cover (7).

10. A gas motor valve according to claim 2, characterized in that: the shell (22) is detachably connected with the shell (1), and a sealing ring (8) is arranged between the shell (1) and the shell (22).