CN218348014U - Built-in motor valve of intelligent gas meter - Google Patents
Built-in motor valve of intelligent gas meter Download PDFInfo
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- CN218348014U CN218348014U CN202222827666.7U CN202222827666U CN218348014U CN 218348014 U CN218348014 U CN 218348014U CN 202222827666 U CN202222827666 U CN 202222827666U CN 218348014 U CN218348014 U CN 218348014U
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Abstract
The utility model discloses an intelligent gas meter built-in motor valve, including valve body, gear box and motor, the gear box passes through valve gap and valve body fixed connection, and the motor sets up in the side of gear box, is equipped with screw rod, nut and sealed lid in the valve body respectively, and the nut is with screw rod screw-thread fit, and sealed lid sets up on the nut and with the valve port seal fit of valve body, and the output shaft of motor is provided with the transmission bevel gear, is provided with driven bevel gear in the gear box, and the transmission bevel gear meshes with driven bevel gear; the bottom end of the screw rod penetrates through the valve cover and extends into the gear box, the bottom end of the screw rod is provided with a lug, and the driven bevel gear is provided with a boss correspondingly matched with the lug. The utility model has the advantages of simple and reasonable structure, not only can effectively reduce the accumulative tolerance for processing is more simple, working property is more reliable and more stable, and the transmission is than higher, is favorable to practicing thrift complete machine manufacturing cost and reduces the complete machine volume.
Description
Technical Field
The utility model relates to a motor valve technical field, in particular to intelligent gas table built-in motor valve.
Background
An intelligent gas meter usually adopts a motor valve as an actuating mechanism to control the opening and closing of the gas meter. The structure of the built-in motor valve of the currently common intelligent gas meter mainly comprises a valve body, a valve seat, a valve cover, a motor, a reduction gear set, a screw rod and a sealing cover, wherein the valve body is fixedly connected with the valve seat through the valve cover, the motor and the reduction gear set are correspondingly arranged in the valve seat, the top end of the screw rod is in transmission connection with the sealing cover through a nut, the bottom end of the screw rod penetrates through the valve cover and is in transmission connection with the reduction gear set, and the top of the valve body is provided with a valve port corresponding to the sealing cover. When the valve is in work, the motor drives the screw rod to rotate through the reduction gear set, and then the sealing cover is driven to move along the axial direction of the screw rod, so that the effect of controlling the opening and closing of the valve port is achieved. For example, a gas meter motor valve disclosed in chinese patent (publication No. CN 201339750Y) may be mentioned.
In an intelligent gas meter built-in motor valve in the prior art, a reduction gear set of the intelligent gas meter is generally in transmission connection with a screw rod through an inner gear ring, the specific structure is that the inner gear ring is sleeved at the bottom end of the screw rod, lugs are convexly arranged at the bottom end of the screw rod along the radial direction, a lug which is matched with the lugs in an abutting mode is arranged on the inner gear ring, and when a motor drives the reduction gear set to operate, the inner gear ring is matched with the lugs through the lug to drive the screw rod to rotate. The transmission structure has the defects that the tolerance clearance of the inner gear ring, the screw rod and the nut needs to be considered during processing, the processing precision requirement is high, the processing difficulty is high, the accumulated tolerance is large after assembly, and the transmission efficiency, the working stability and the reliability are influenced. In addition, the adoption of the reduction gear set with the inner gear ring also results in low transmission ratio, and in order to ensure the transmission effect, multi-stage speed reduction is often required, and the size of the inner gear ring is increased, which further results in larger overall volume and higher manufacturing cost of the motor valve.
There is a need for improvements in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide an intelligent gas table built-in motor valve, its simple structure is reasonable, not only can effectively reduce accumulative tolerance for processing is more simple, working property is reliable and more stable, and the transmission is than higher, is favorable to practicing thrift complete machine manufacturing cost and reduces the complete machine volume.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a built-in motor valve of an intelligent gas meter comprises a valve body, a gear box and a motor, wherein the gear box is fixedly connected with the valve body through a valve cover, the motor is arranged beside the gear box, a screw, a nut and a sealing cover are respectively arranged in the valve body, the nut is in threaded fit with the screw, the sealing cover is arranged on the nut and is in sealing fit with a valve port of the valve body, a transmission bevel gear is arranged on an output shaft of the motor, a driven bevel gear is arranged in the gear box, and the transmission bevel gear is meshed with the driven bevel gear; the bottom end of the screw rod penetrates through the valve cover and extends into the gear box, a lug is arranged at the bottom end of the screw rod, and a boss correspondingly matched with the lug is arranged on the driven bevel gear.
Furthermore, a sealing bag is further arranged in the valve body, the sealing bag is arranged outside the nut in a covering mode in a sealing mode, and the bottom of the sealing bag is in sealing fit with the valve cover.
Furthermore, a concave annular groove is formed on the upper end face of the valve cover, and the bottom of the sealing bag is inserted into the annular groove.
Furthermore, a guide sleeve extends from the upper end face of the valve cover along the axial direction, and the guide sleeve is sleeved between the nut and the sealing bag.
Further, the inner wall of the sealing bag is in sealing fit with the outer wall of the guide sleeve.
Further, a piston part is arranged at the top of the nut, and the sealing cover is fixedly connected with the piston part.
Further, the side of gear box is provided with the motor casing, the motor set up in the motor casing.
Further, the number of the lugs and the bosses is one.
Further, the bottom of valve body is provided with the buckle, the gear box be equipped with buckle complex bayonet socket, the valve gap is equipped with the confession the through-hole that the buckle passed, the buckle pass the through-hole and with bayonet socket lock joint.
The utility model has the advantages that:
the utility model provides an intelligent gas table built-in motor valve, through adopting the bevel gear group that constitutes by transmission bevel gear and driven bevel gear cooperation, in order to replace the reduction gear group that has the ring gear among the prior art, in operation, driven bevel gear passes through boss and lug cooperation with power transmission to screw rod, this kind of disconnect-type transmission structure of similar shaft coupling principle (driven bevel gear need not cup joint with the screw rod promptly), make add the tolerance clearance of only needing to consider "screw rod and nut" man-hour can, and need not to consider the tolerance clearance between "screw rod and the driven bevel gear", thereby can effectively play the effect that reduces accumulative tolerance, make the machining precision requirement lower, the processing degree of difficulty is littleer, be favorable to improving transmission efficiency and job stabilization nature, reliability. Additionally, the utility model discloses a by the bevel gear group that transmission bevel gear and driven bevel gear cooperation constitute, compare with the reduction gear group among the prior art, the drive ratio is higher, only needs the one-level speed reduction can satisfy the speed reduction demand, more is favorable to practicing thrift complete machine manufacturing cost and reduces the complete machine volume. The utility model discloses the structure sets up simply, rationally.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the valve body of the present invention.
Fig. 3 is a schematic view of the matching and connecting structure between the motor, the driven bevel gear, the transmission bevel gear and the screw rod of the present invention.
In FIGS. 1-3:
1. a valve body; 11. a valve port; 13. buckling;
2. a gear case;
3. a motor;
4. a valve cover; 41. an annular groove; 42. a guide sleeve;
5. a motor casing;
6. a screw; 61. A lug;
7. a nut; 71. A piston portion;
8. a sealing cover;
9. a transmission bevel gear;
10. a driven bevel gear; 101. a boss;
12. sealing bag
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-3, the built-in motor valve for an intelligent gas meter comprises a valve body 1, a gear box 2 and a motor 3, wherein the gear box 2 is fixedly connected with the valve body 1 through a valve cover 4, the motor 3 is arranged beside the gear box 2, specifically, a motor housing 5 is arranged beside the gear box 2, the motor 3 is arranged in the motor housing 5, a screw rod 6, a nut 7 and a sealing cover 8 are respectively arranged in the valve body 1, the nut 7 is in threaded fit with the screw rod 6, the sealing cover 8 is arranged on the nut 7 and is in sealing fit with a valve port 11 of the valve body 1, an output shaft of the motor 3 is provided with a transmission bevel gear 9, a driven bevel gear 10 is arranged in the gear box 2, and the transmission bevel gear 9 is engaged with the driven bevel gear 10; the bottom end of the screw rod 6 penetrates through the valve cover 4 and extends into the gear box 2, the bottom end of the screw rod 6 is provided with a lug 61, and the driven bevel gear 10 is provided with a boss 101 correspondingly matched with the lug 61.
The above constitutes the main structure of the utility model. When the valve is in work, the motor 3 drives the driven bevel gear 10 to rotate through the transmission bevel gear 9, the driven bevel gear 10 is matched with the lug 61 through the boss 101 in the rotating process, the screw 6 is driven to rotate, and then the screw 6 drives the nut 7 to move along the axial direction, so that the sealing cover 8 is driven to move synchronously, and the opening and closing control of the valve port 11 is realized.
The utility model provides an intelligent gas meter built-in motor valve, through adopting the bevel gear group that constitutes by the cooperation of transmission bevel gear 9 and driven bevel gear 10, in order to replace the reduction gear group that has the ring gear among the prior art, in operation, driven bevel gear 10 cooperates power transmission to screw rod 6 with lug 61 through boss 101, the disconnect-type transmission structure of this kind of similar shaft coupling principle (namely driven bevel gear 10 need not cup joint with screw rod 6), make when adding the tolerance clearance that only needs to consider "screw rod 6 and nut 7" man-hour can, and need not to consider "the tolerance clearance between screw rod 6 and the driven bevel gear 10", thereby can effectively play the effect that reduces the accumulative tolerance, make the machining precision requirement lower, the processing degree of difficulty is littleer, be favorable to improving transmission efficiency and job stabilization nature, reliability. Additionally, the utility model discloses a bevel gear group that constitutes by the cooperation of transmission bevel gear 9 and driven bevel gear 10 compares with the reduction gear group among the prior art, and the drive ratio is higher, only needs the one-level speed reduction can satisfy the speed reduction demand, more is favorable to practicing thrift complete machine manufacturing cost and reduces the complete machine volume.
In this embodiment, a sealing bag 12 is further disposed in the valve body 1, the sealing bag 12 is hermetically covered outside the nut 7, and the bottom of the sealing bag 12 is in sealing fit with the valve cap 4. By arranging the sealing bag 12, the gas in the valve body 1 can be prevented from entering the gear box 2, and the use safety is ensured. Preferably, in order to improve the positional accuracy of the packing 12, the upper end surface of the valve cover 4 is formed with a recessed annular groove 41, and the bottom of the packing 12 is inserted into the annular groove 41.
In this embodiment, the nut 7 is a column shape extending along the axial direction of the screw rod 6, and in order to avoid the nut 7 from shaking when moving along the axial direction of the screw rod 6, the upper end surface of the valve cover 4 extends along the axial direction to form a guide sleeve 42, and the guide sleeve 42 is sleeved between the nut 7 and the sealing bag 12. Specifically, the inner wall of the sealing bladder 12 sealingly engages the outer wall of the guide sleeve 42 to enhance the sealing effect.
In this embodiment, the top of the nut 7 is provided with a piston portion 71, and the sealing cover 8 is fixedly connected with the piston portion 71. By arranging the piston part 71, the support of the nut 7 to the sealing cover 8 can be effectively improved, so that the sealing cover 8 and the nut 7 are more stably connected.
In this embodiment, the number of the lug 61 and the boss 101 is one, and a transmission structure formed by matching the single lug 61 and the single boss 101 is adopted between the driven bevel gear 10 and the screw 6, so that the no-load rotation angle (close to 360 °) of the motor 3 during starting is increased, and when the boss 101 of the driven bevel gear 10 is in contact with the lug 61 of the screw 6, the impact force is greater, and the power output effect is better.
In this embodiment, the bottom of the valve body 1 is provided with a buckle 13, the gear box 2 is provided with a bayonet matched with the buckle 13, the valve cap 4 is provided with a through hole for the buckle 13 to pass through, and the buckle 13 passes through the through hole and is buckled with the bayonet. Through adopting buckle 13 to connect, can effectively reduce the required accessory of assembly, it is more convenient to assemble, and the cost is lower.
What has just been said above is the preferred embodiment of the present invention, so all according to the utility model discloses a patent application scope structure, characteristic and principle do equivalent change or modify, all include the utility model discloses a patent application scope.
Claims (9)
1. The utility model provides an intelligent gas table embeds electric machine valve, includes valve body, gear box and motor, the gear box pass through the valve gap with valve body fixed connection, the motor set up in the side of gear box, be equipped with screw rod, nut and sealed lid in the valve body respectively, the nut with screw rod screw-thread fit, sealed lid set up in on the nut and with the valve port seal cooperation of valve body, its characterized in that: a transmission bevel gear is arranged on an output shaft of the motor, a driven bevel gear is arranged in the gear box, and the transmission bevel gear is meshed with the driven bevel gear; the bottom end of the screw rod penetrates through the valve cover and extends into the gear box, a lug is arranged at the bottom end of the screw rod, and a boss correspondingly matched with the lug is arranged on the driven bevel gear.
2. The built-in motor valve of the intelligent gas meter according to claim 1, characterized in that: and a sealing bag is further arranged in the valve body, the sealing bag is hermetically covered outside the nut, and the bottom of the sealing bag is in sealing fit with the valve cover.
3. The built-in motor valve of the intelligent gas meter according to claim 2, characterized in that: a concave annular groove is formed on the upper end face of the valve cover, and the bottom of the sealing bag is inserted into the annular groove.
4. The built-in motor valve of the intelligent gas meter according to claim 2 or 3, characterized in that: the upper end face of the valve cover extends axially to form a guide sleeve, and the guide sleeve is sleeved between the nut and the sealing bag.
5. The built-in motor valve of the intelligent gas meter as claimed in claim 4, wherein: the inner wall of the sealing bag is in sealing fit with the outer wall of the guide sleeve.
6. The built-in motor valve of the intelligent gas meter, according to claim 1, is characterized in that: the top of nut is provided with piston portion, sealed lid with piston portion fixed connection.
7. The built-in motor valve of the intelligent gas meter, according to claim 1, is characterized in that: the side of gear box is provided with the motor casing, the motor set up in the motor casing.
8. The built-in motor valve of the intelligent gas meter, according to claim 1, is characterized in that: the number of the lugs and the bosses is one.
9. The built-in motor valve of the intelligent gas meter according to claim 1, characterized in that: the bottom of valve body is provided with the buckle, the gear box be equipped with buckle complex bayonet socket, the valve gap is equipped with the confession the through-hole that the buckle passed, the buckle pass the through-hole and with bayonet socket lock joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222827666.7U CN218348014U (en) | 2022-10-26 | 2022-10-26 | Built-in motor valve of intelligent gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222827666.7U CN218348014U (en) | 2022-10-26 | 2022-10-26 | Built-in motor valve of intelligent gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218348014U true CN218348014U (en) | 2023-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222827666.7U Active CN218348014U (en) | 2022-10-26 | 2022-10-26 | Built-in motor valve of intelligent gas meter |
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| CN (1) | CN218348014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116480763A (en) * | 2023-06-21 | 2023-07-25 | 宁波精成电机有限公司 | Motor gear box structure and car |
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2022
- 2022-10-26 CN CN202222827666.7U patent/CN218348014U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116480763A (en) * | 2023-06-21 | 2023-07-25 | 宁波精成电机有限公司 | Motor gear box structure and car |
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