CN218954088U - Two-way sealed motor ball valve of gas pipeline - Google Patents
Two-way sealed motor ball valve of gas pipeline Download PDFInfo
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- CN218954088U CN218954088U CN202223248466.2U CN202223248466U CN218954088U CN 218954088 U CN218954088 U CN 218954088U CN 202223248466 U CN202223248466 U CN 202223248466U CN 218954088 U CN218954088 U CN 218954088U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model provides a gas pipeline bidirectional sealing motor ball valve, which comprises: the valve comprises a valve body and a valve ball, wherein a sealing space is formed between the valve ball and the valve body, a sealing unit is arranged in the sealing space, the sealing unit comprises a first sealing ring and a mounting block, the first sealing ring is arranged on the mounting block, and an elastic piece is arranged between the mounting block and the valve body so that the first sealing ring is propped against the valve ball. According to the gas pipeline bidirectional sealing motor ball valve, the first sealing ring is propped against the valve ball to seal by means of the elastic force of the elastic piece, compared with an assembly mode that the sealing ring is pressed and fixed, the force propped against the valve ball and the first sealing ring can be reduced, the force required by rotation of the valve rod is reduced, and a small-moment motor can be adopted to reduce production cost.
Description
Technical Field
The utility model relates to the technical field of pipeline valves, in particular to a gas pipeline bidirectional sealing motor ball valve.
Background
The ball valve for gas pipeline is a valve commonly used between natural gas and gas pipelines. The working principle is as follows: when the motor drives the valve rod to rotate, the valve rod drives the valve ball to rotate together, and the aim of opening or closing can be achieved as long as the valve ball rotates by 90 degrees.
In the existing gas pipeline ball valves, the valve ball on the existing gas pipeline ball valves is sealed with the valve body through a sealing ring; when the valve is assembled, the sealing ring is rigidly extruded on the valve ball to seal, so that the friction force between the valve ball and the sealing ring is large, and the force required by the rotation of the valve rod relative to the sealing ring is also large, so that a motor with large torque is required to drive the valve rod to rotate; the large torque motor has larger volume, large occupied space, inconvenient transportation and use in a narrow space and higher production cost.
Disclosure of Invention
First, the technical problem to be solved
The utility model aims to solve the problem of providing a gas pipeline bidirectional sealing motor ball valve, which is capable of sealing a first sealing ring against a valve ball by means of elasticity of an elastic piece, reducing the force of the valve ball against the first sealing ring, and adopting a motor with small moment to reduce the production cost.
(II) technical scheme
In order to solve the technical problem, the utility model provides a gas pipeline bidirectional sealing motor ball valve, which comprises: the valve comprises a valve body and a valve ball, wherein a sealing space is formed between the valve ball and the valve body, a sealing unit is arranged in the sealing space, and the valve ball and the valve body are sealed through the sealing unit; the sealing unit comprises a first sealing ring and a mounting block, and the first sealing ring is arranged on the mounting block; an elastic piece is arranged between the mounting block and the valve body, so that the first sealing ring is propped against the valve ball to achieve a sealing effect, and the mounting block has a sliding space; the sphericity of the spherical surface part of the valve ball has a certain processing error, so that the valve ball can drive the sealing unit to slightly slide in the rotating process, the elastic piece correspondingly stretches and contracts, the overlarge friction force between the valve ball and the first sealing ring is avoided, and the valve rod rotates smoothly and is not easy to be blocked; the elastic force of the elastic piece is utilized to prop the first sealing ring against the valve ball, compared with an assembly mode that the sealing ring is pressed and fixed, the force of the valve ball against the first sealing ring can be reduced, the force required by rotation of the ball valve is reduced, the force required by rotation of the valve rod is reduced, the motor can adopt a motor with small torque, the motor with small torque is small in size and low in production cost, and the valve is convenient to transport and use in a narrow space.
Further, the sealing units are provided with two groups, and the two groups of sealing units are respectively arranged on two opposite sides of the valve ball.
Further, the valve ball comprises an arc surface, and the first sealing ring is provided with an arc sealing surface corresponding to the arc surface.
Further, the elastic piece is a compression spring, one end of the elastic piece is propped against the valve body, and the other end of the elastic piece is propped against the mounting block.
Further, the mounting block comprises a first block body and a second block body which are integrally formed, a gap is reserved between the first block body and the valve body, and the sealing unit further comprises a second sealing ring arranged between the valve body and the second block body.
Further, a first channel is formed in the valve body, a second channel is formed in the mounting block, a third channel is formed in the valve ball, one end of the second channel is communicated with the first channel, and the other end of the second channel is communicated with the third channel.
Further, the first channel, the second channel and the third channel are all arranged in a horizontal extending mode, and the mounting block slides along the horizontal direction.
Further, a valve rod and a motor for driving the valve rod to rotate are arranged on the valve body, and the valve rod is connected with the valve ball.
Further, a reduction gear set is connected between the output end of the motor and the valve rod, and the reduction gear set comprises a plurality of transmission gears.
Further, a first switch and a second switch are arranged on the valve body, a trigger rod is connected to the valve rod, and the axis of the trigger rod is perpendicular to the axis of the valve rod; when the valve rod drives the trigger rod to rotate and triggers the first switch, the first switch controls the motor to stop rotating; when the valve rod drives the trigger rod to rotate and triggers the second switch, the second switch controls the motor to stop rotating.
(III) beneficial effects
According to the gas pipeline bidirectional sealing motor ball valve, the first sealing ring is propped against the valve ball to be sealed by means of the elastic force of the elastic piece, compared with an assembly mode that the sealing ring is pressed and fixed, the force propped against the valve ball and the first sealing ring can be reduced, so that the force required by rotation of the valve rod is reduced, a motor with small moment can be adopted, the motor with small moment is small in size and low in production cost, and the gas pipeline bidirectional sealing motor ball valve is convenient to transport and use in a narrow space; the two groups of sealing units are respectively arranged on two opposite sides of the valve ball, so that the sealing effect is good, and leakage of fluid from a gap between the valve body and the valve ball is avoided; the motor ball valve is a ball valve with bidirectional sealing, namely, the air inlet direction is not required to be separated when the valve is installed, and the installation is convenient; the valve ball comprises an arc surface, the first sealing ring is provided with an arc sealing surface corresponding to the arc surface, so that the contact surfaces of the first sealing ring and the second sealing ring are more attached, and the sealing performance is further improved; the sealing unit also comprises a second sealing ring arranged between the valve body and the mounting block, and the two second sealing rings are arranged, so that the sealing performance is good, and the occurrence of fluid leakage is prevented.
Drawings
FIG. 1 is a perspective view of a gas pipeline bi-directional seal motor ball valve of the present utility model;
FIG. 2 is a cross-sectional view of a gas conduit bi-directional seal motor ball valve of the present utility model;
fig. 3 is an enlarged view of a portion a in fig. 2;
FIG. 4 is a schematic diagram of the structure of the arc sealing surface of the ball valve of the gas pipeline bidirectional sealing motor of the utility model;
fig. 5 is an enlarged view of a portion B in fig. 2;
FIG. 6 is a schematic diagram of the motor portion of the ball valve of the gas pipeline bi-directional seal motor of the present utility model;
fig. 7 is an enlarged view of a portion C in fig. 6;
FIG. 8 is a schematic diagram of the structure of the ball valve drive gear portion of the gas conduit bi-directional seal motor of the present utility model;
the corresponding component names for each reference number in the figures are: the valve comprises a valve body 1, a first channel 101, a mounting groove 102, a valve ball 2, an arc surface 201, a third channel 21, a motor 3, a sealing unit 4, an arc sealing surface 401, a first sealing ring 41, a mounting block 42, a first block 421, a second block 422, a second block 423, a second channel 43, a second sealing ring 43, an elastic piece 5, a valve rod 7, a trigger lever 701, a first switch 8, a reduction gear set 80, a first switch contact 801, a second switch 9, a second switch 901, a first gear 11, a second gear 12, a third gear 13, a fourth gear 14, a fifth gear 15, a sixth gear 16, a seventh gear 17, an eighth gear 18, a rotary shaft 19 and a gap 20.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
Referring to fig. 1-8, the present utility model provides a gas pipeline bidirectional sealing motor ball valve, comprising: the valve comprises a valve body 1 and a valve ball 2, wherein a sealing space is formed between the valve ball 2 and the valve body 1, a sealing unit 4 is arranged in the sealing space, and the valve ball 2 and the valve body 1 are sealed through the sealing unit 4; the sealing unit 4 comprises a first sealing ring 41 and a mounting block 42, wherein the first sealing ring 41 is arranged on the mounting block 42; an elastic piece 5 is arranged between the mounting block 42 and the valve body 1, so that the first sealing ring 41 is propped against the valve ball 2 to achieve a sealing effect, and the mounting block 42 has a sliding space; the sphericity of the spherical surface part of the valve ball 2 has a certain processing error, so that the valve ball 2 can drive the sealing unit 4 to slightly slide in the rotating process, the elastic piece 5 correspondingly stretches and contracts, the excessive friction force between the valve ball 2 and the first sealing ring 41 is avoided, and the valve rod 7 rotates smoothly and is not easy to be blocked; the elastic force of the elastic piece 5 is utilized to seal the first sealing ring 41 against the valve ball 2, compared with an assembly mode of pressing and fixing the sealing ring, the force of the valve ball 2 against the first sealing ring 41 can be reduced, the force required by rotation of the ball valve 2 is reduced, the force required by rotation of the valve rod 7 is reduced, the motor 3 can adopt a motor with small torque, the motor with small torque is small in size and low in production cost, and the valve is convenient to transport and use in a narrow space.
Referring to fig. 1 and 2, the sealing units 4 are provided with two groups, the two groups of sealing units 4 are respectively arranged at two opposite sides of the valve ball 2, the sealing effect is good, and leakage of fluid from a gap between the valve body 1 and the valve ball 2 is avoided; the motor ball valve is a ball valve with bidirectional sealing, namely the left and right directions of the air inlet direction are not required to be separated during valve installation, and the motor ball valve is convenient to install.
Referring to fig. 2-4, the valve ball 2 includes an arc surface 201, the first sealing ring 41 is formed with an arc sealing surface 401 corresponding to the arc surface 201, and the arc sealing surface 401 abuts against the arc surface 201 to seal, so that contact surfaces of the two surfaces are more attached, and sealing performance is further improved.
Referring to fig. 2-4, the first sealing ring 41 is embedded and mounted on the mounting block 42, so that the mounting is stable, the structure is compact, the first sealing ring 41 is made of rubber, and the first sealing ring 41 and the mounting block 42 are both rotary workpieces; in the past, an assembly mode that a sealing ring is used for pressing a ball valve for fixing is adopted, after the sealing ring is aged, the tightness between the sealing ring and the ball valve is poor, and the sealing effect cannot be ensured; in this embodiment, the first sealing ring 41 is propped against the valve ball 2 by means of the elastic force of the elastic member 5, and after the first sealing ring 41 is aged, the first sealing ring 41 can still be propped against the valve ball 2 by means of the elastic force of the elastic member 5, so that the valve ball is reliable in use.
Referring to fig. 2 and 3, the elastic member 5 is a compression spring, so that the use cost is low, because the elasticity of the compression spring is self, the seal between the first sealing ring 41 and the ball valve 2 is elastic, and the ball valve 2 and the first sealing ring 41 can buffer and avoid due to the action of the compression spring, so that the friction force between the ball valve 2 and the first sealing ring 41 is small, and the motor requires small torque; one end of the elastic piece 5 is abutted against the valve body 1, and the other end of the elastic piece 5 is abutted against the mounting block 42; the valve body 1 is provided with a mounting groove 102 for mounting the elastic piece 5, and the elastic piece 5 is stably mounted and is not easy to displace; the mounting block 42 comprises a first block 421 and a second block 422 which are integrally formed, and a gap 20 is reserved between the first block 421 and the valve body 1, so that the mounting block 42 can have a sliding space in the horizontal direction; the sealing unit 4 further comprises a second sealing ring 43 arranged between the valve body 1 and the second block 422, and the two second sealing rings 43 are arranged, so that the sealing performance is good, the leakage of fluid, which is fuel gas in the embodiment, is prevented.
Referring to fig. 1 and 2, a first passage 101 is formed in the valve body 1, a second passage 423 is formed in the mounting block 42, and a third passage 21 is formed in the valve ball 2; when the motor ball valve is in a conducting state, one end of the second channel 423 is communicated with the first channel 101, and the other end of the second channel 423 is communicated with the third channel 21; when the motor ball valve is in a blocking state, the valve ball 2 rotates 90 degrees so as to separate the fluid at the left side and the right side of the valve ball 2; the first channel 101, the second channel 423 and the third channel 21 are all extended along the horizontal direction, and the mounting block 42 slides along the horizontal direction; so that the mounting block 42 does not affect the normal flow of fluid when sliding occurs and is reliable in use.
Referring to fig. 2, 5 and 8, a valve rod 7 and a motor 3 for driving the valve rod 7 to rotate are arranged on a valve body 1, the valve rod 7 is connected with a valve ball 2, and the valve rod 7 and the valve ball 2 are driven to synchronously rotate by the motor 3, so that the on-off of the ball valve is controlled; a reduction gear set 80 is connected between the output end of the motor 3 and the valve rod 7, the reduction gear set 80 comprises a plurality of transmission gears, 8 transmission gears are arranged, a first gear 11, a second gear 12, a third gear 13, a fourth gear 14, a fifth gear 15, a sixth gear 16, a seventh gear 17 and an eighth gear 18 are sequentially arranged according to the transmission direction from the output end of the motor 3 to the valve rod 7, and a plurality of gears are adopted for meshing transmission to achieve the purpose of reducing speed; the first gear 11 is meshed with an output gear of the motor 3, the eighth gear 18 is fixedly connected with the valve rod 7, and the sixth gear 16 and the seventh gear 17 are connected through a rotating shaft 19 and synchronously rotate.
Referring to fig. 2, 5, 6 and 7, a first switch 8 and a second switch 9 are arranged on the valve body 1, and the first switch 8 and the second switch 9 are distributed at an included angle of 90 degrees by taking the axis of the valve rod 7 as a center point; the valve rod 7 is connected with a trigger rod 701, and the axis of the trigger rod 701 is perpendicular to the axis of the valve rod 7; when the valve rod 7 drives the trigger rod 701 to rotate and triggers the first switch contact 801 of the first switch 8, the first switch 8 controls the motor 3 to stop rotating; when the valve rod 7 drives the trigger rod 701 to rotate and triggers the second switch contact 901 of the second switch 9, the second switch 9 controls the motor 3 to stop rotating; when the valve is opened: inputting direct-current forward voltage to the motor 3, driving the valve rod 7 to rotate forward by the motor 3, driving the valve ball 2 connected with the valve rod 7 to rotate 90 degrees by the valve rod 7, realizing the opening of the valve, namely realizing the conduction of air flow, and triggering the first switch 8 to stop rotating by the valve rod 7; when the valve is closed: inputting reverse voltage to the motor 3, driving the valve rod 7 to reversely rotate by the motor 3, driving the valve ball 2 to rotate by minus 90 degrees by the valve rod 7, and closing the valve to realize the separation of air flow, wherein the valve rod 7 triggers the second switch 9 to stop rotating; in this embodiment, the forward direction is clockwise and the reverse direction is counterclockwise.
The two-way sealing motor ball valve for the gas pipeline, disclosed by the utility model, has the advantages that the sealing unit also comprises two second sealing rings arranged between the valve body and the mounting block, and the sealing performance is good, so that the leakage of fluid is prevented; the first sealing ring is propped against the valve ball to be sealed by means of the elasticity of the elastic piece, compared with an assembly mode that the sealing ring is pressed and fixed, the force propped against the valve ball and the first sealing ring can be reduced, so that the force required by rotation of the valve rod is reduced, a small-moment motor can be adopted, the small-moment motor is small in size and low in production cost, and the valve rod is convenient to transport and use in a narrow space; the two groups of sealing units are respectively arranged on two opposite sides of the valve ball, so that the sealing effect is good, and leakage of fluid from a gap between the valve body and the valve ball is avoided; the motor ball valve is a ball valve with bidirectional sealing, namely, the air inlet direction is not required to be separated when the valve is installed, and the installation is convenient; the valve ball comprises an arc surface, the first sealing ring is provided with an arc sealing surface corresponding to the arc surface, so that the contact surfaces of the first sealing ring and the second sealing ring are more fit, and the sealing performance is further improved.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (10)
1. A gas pipeline bi-directional seal motor ball valve, comprising: valve body (1) and valve ball (2), valve ball (2) with be formed with sealed space between valve body (1), be provided with sealing unit (4) in the sealed space, sealing unit (4) include first sealing washer (41) and installation piece (42), first sealing washer (41) set up in on installation piece (42), installation piece (42) with be provided with elastic component (5) between valve body (1), so that first sealing washer (41) with valve ball (2) offset.
2. The gas pipeline bidirectional sealing motor ball valve according to claim 1, wherein the sealing units (4) are provided with two groups, and the two groups of sealing units (4) are respectively arranged on two opposite sides of the valve ball (2).
3. The gas pipeline bidirectional sealing motor ball valve according to claim 1, wherein the valve ball (2) comprises an arc surface (201), and the first sealing ring (41) is formed with an arc sealing surface (401) corresponding to the arc surface (201).
4. The gas pipeline bidirectional sealing motor ball valve according to claim 1, wherein the elastic piece (5) is a compression spring, one end of the elastic piece (5) is abutted against the valve body (1), and the other end of the elastic piece (5) is abutted against the mounting block (42).
5. The gas pipeline bidirectional sealing motor ball valve according to claim 1, wherein the mounting block (42) comprises a first block (421) and a second block (422) which are integrally formed, a gap (20) is reserved between the first block (421) and the valve body (1), and the sealing unit (4) further comprises a second sealing ring (43) arranged between the valve body (1) and the second block (422).
6. The gas pipeline bidirectional sealing motor ball valve according to claim 1, wherein a first channel (101) is formed on the valve body (1), a second channel (423) is formed on the mounting block (42), a third channel (21) is formed on the valve ball (2), one end of the second channel (423) is communicated with the first channel (101), and the other end of the second channel (423) is communicated with the third channel (21).
7. The gas conduit bi-directional seal motor ball valve of claim 6 wherein said first channel (101), said second channel (423) and said third channel (21) are all disposed extending in a horizontal direction, said mounting block (42) sliding in a horizontal direction.
8. The gas pipeline bidirectional sealing motor ball valve according to claim 1, wherein a valve rod (7) and a motor (3) for driving the valve rod (7) to rotate are arranged on the valve body (1), and the valve rod (7) is connected with the valve ball (2).
9. The gas pipeline bidirectional sealing motor ball valve according to claim 8, wherein a reduction gear set (80) is connected between the output end of the motor (3) and the valve rod (7), and the reduction gear set (80) comprises a plurality of transmission gears.
10. The gas pipeline bidirectional sealing motor ball valve according to claim 8, wherein a first switch (8) and a second switch (9) are arranged on the valve body (1), a trigger rod (701) is connected to the valve rod (7), and the axis of the trigger rod (701) is perpendicular to the axis of the valve rod (7); when the valve rod (7) drives the trigger rod (701) to rotate and triggers the first switch (8), the first switch (8) controls the motor (3) to stop rotating; when the valve rod (7) drives the trigger rod (701) to rotate and triggers the second switch (9), the second switch (9) controls the motor (3) to stop rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223248466.2U CN218954088U (en) | 2022-12-05 | 2022-12-05 | Two-way sealed motor ball valve of gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223248466.2U CN218954088U (en) | 2022-12-05 | 2022-12-05 | Two-way sealed motor ball valve of gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218954088U true CN218954088U (en) | 2023-05-02 |
Family
ID=86138447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223248466.2U Active CN218954088U (en) | 2022-12-05 | 2022-12-05 | Two-way sealed motor ball valve of gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218954088U (en) |
-
2022
- 2022-12-05 CN CN202223248466.2U patent/CN218954088U/en active Active
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