CN215334631U - Control device and control valve for controlling flow direction of liquid - Google Patents
Control device and control valve for controlling flow direction of liquid Download PDFInfo
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- CN215334631U CN215334631U CN202121477280.7U CN202121477280U CN215334631U CN 215334631 U CN215334631 U CN 215334631U CN 202121477280 U CN202121477280 U CN 202121477280U CN 215334631 U CN215334631 U CN 215334631U
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Abstract
The utility model relates to the technical field of liquid flow passage control devices, and provides a control device and a control valve for controlling the flow direction of liquid, which comprise: a body having a liquid channel formed therein and a first port, a second port, and a third port communicating with the liquid channel; the switching mechanism is provided with a telescopic piece and a driving piece used for driving the telescopic piece, and a piston head is arranged at one end, far away from the driving piece, of the telescopic piece. Compared with the prior art, the utility model mainly has the following advantages: the utility model changes the flowing direction of liquid mainly by controlling the movement of the piston head in the liquid channel, and has simple control structure, high control speed and good control effect; the utility model controls the moving direction of the telescopic piece by arranging the guide structures on the piston head and the main body rod, so that the moving direction of the telescopic piece can be always kept consistent and is not interfered by the outside.
Description
Technical Field
The utility model relates to the technical field of liquid flow passage control devices, in particular to a control device and a control valve for controlling the flow direction of liquid.
Background
The flow direction control valve can generally control the flow direction of liquid in the valve, and the flow direction control valve can be divided into solenoid valve, mechanical valve and gas accuse valve according to control mode, but traditional flow direction control valve not only structure is complicated, and gas tightness performance is relatively poor, and the operation is inconvenient to the inflow and the outflow of liquid are chaotic easily taking place when liquid work, lead to the work control valve to become invalid.
SUMMERY OF THE UTILITY MODEL
The present invention provides a control device and a control valve for controlling a flow direction of a liquid, which are directed to the current state of the art.
The technical scheme adopted by the utility model for solving the technical problems is as follows: it is proposed that a control device for controlling a flow direction of a liquid comprises:
a body having a liquid passage formed therein and a first port, a second port, and a third port communicating with the liquid passage, the first port and the second port forming a first liquid flow path, the first port and the third port forming a second liquid flow path;
the switching mechanism is provided with a telescopic piece and a driving piece for driving the telescopic piece, one end of the telescopic piece, which is far away from the driving piece, is provided with a piston head, and the piston head is movably arranged in the liquid channel;
when the piston head moves to different positions, the first liquid flow line can be controlled to be opened, the second liquid flow line can be controlled to be closed, or the first liquid flow line can be controlled to be closed, and the second liquid flow line can be controlled to be opened.
In the above control device and control valve for controlling the flow direction of liquid, the telescopic member further comprises a main body rod, one end of the main body rod is arranged on the driving member, and the other end of the main body rod is arranged on the piston head.
At foretell controlling means and control valve for controlling liquid flow direction, be equipped with driving motor on the driving piece, driving motor sets up one side of main part, the last dwang that is equipped with of driving motor, be equipped with the external screw thread on the dwang, the main part pole is kept away from the one end of piston head be equipped with the screw hole of external screw thread looks adaptation, the dwang rotates to set up in the threaded hole, the length of external screw thread will be less than the degree of depth of screw hole.
At foretell controlling means and control valve for controlling liquid flow direction, driving motor keeps away from one side of extensible member is equipped with the regulating part, the regulating part is kept away from driving motor's one end is connected on the dwang, rotates can drive during the regulating part the dwang rotates.
In the above control device and control valve for controlling the flow direction of liquid, one end of the liquid channel close to the driving piece is provided with the guide piece, the guide piece is internally provided with the rolling bearing, the main body rod is movably inserted in the rolling bearing, a first sealing ring is arranged between the guide piece and the main body rod, and a second sealing ring is arranged between the guide piece and the liquid channel.
At foretell controlling means and control valve for controlling liquid flow direction, be equipped with the directional groove on the piston head lateral wall, be equipped with the orientation block in the directional groove, the orientation block with liquid passage's lateral wall activity supports and leans on, the orientation groove is along the axis direction both sides of piston head all are equipped with the seal groove, every all be equipped with the third sealing washer in the seal groove.
According to the control device and the control valve for controlling the flow direction of the liquid, the first port, the second port and the third port are respectively provided with the quick connector, and the quick connectors are in threaded connection with the first port, the second port and the third port.
The control device and the control valve for controlling the flow direction of liquid further comprise a shell, the shell is arranged on one side, close to the main body, of the driving piece, a motor mounting groove is formed in the shell, the driving motor is arranged in the motor mounting groove, a circuit board mounting groove is further formed in the upper end of the motor mounting groove, and a circuit board is arranged in the circuit board mounting groove.
The present invention further provides a control valve, which includes the above control device for controlling the flow direction of the liquid.
Compared with the prior art, the utility model mainly has the following advantages:
(1) the utility model changes the flowing direction of liquid mainly by controlling the movement of the piston head in the liquid channel, and has simple control structure, high control speed and good control effect;
(2) the utility model controls the movement direction of the telescopic piece by arranging the guide structures on the piston head and the main body rod, so that the movement direction of the telescopic piece can be always kept consistent and is not interfered by the outside;
(3) the length of the external thread arranged on the rotating rod is smaller than the depth of the threaded hole of the main body rod, and the energy consumption of the switching structure is reduced.
Drawings
FIG. 1 is a cross-sectional view of a control valve of the present invention;
FIG. 2 is a cross-sectional view of another aspect of a control valve of the present invention;
FIG. 3 is a cross-sectional view of a control valve body of the present invention;
FIG. 4 is a perspective view of a control valve drive motor and rotating lever of the present invention;
FIG. 5 is a cross-sectional view of a control valve extension of the present invention;
in the figure, the main body 100, the liquid passage 110, the first port 120, the clearance groove 121, the second port 130, the third port 140, the pilot member 150, the rolling bearing 160, the first sealing ring 170, the second sealing ring 180, the quick coupling 190, the switching mechanism 200, the telescopic member 210, the main body rod 211, the threaded hole 211a, the piston head 212, the orientation groove 212a, the sealing groove 212b, the orientation block 213, the third sealing ring 214, the driving member 220, the driving motor 221, the adjusting member 221a, the rotating rod 222, the external thread 222a, the housing 300, the motor mounting groove 310, the circuit board mounting groove 320, and the circuit board 330.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 5, a control valve of the present invention includes a control device for controlling a flow direction of a liquid, the control device being capable of controlling a flow direction of the liquid flowing therein, and includes: a main body 100 and a switching mechanism 200.
The body 100 has a liquid passage 110 formed therein, and a first port 120, a second port 130, and a third port 140 communicating with the liquid passage 110, the first port 120 and the second port 130 forming a first liquid flow path, and the first port 120 and the third port 140 forming a second liquid flow path therebetween; the switching mechanism 200 has a telescopic member 210 and a driving member 220 for driving the telescopic member 210, wherein an end of the telescopic member 210 away from the driving member 220 is provided with a piston head 212, and the piston head 212 is movably disposed in the liquid passage 110.
When the piston head 212 moves to different positions, the first liquid flow path can be controlled to be opened, the second liquid flow path can be controlled to be closed, or the first liquid flow path is closed and the second liquid flow path is controlled to be opened.
As shown in fig. 1, 2 and 5, the telescopic member 210 further includes a main body rod 211, one end of the main body rod 211 is disposed on the driving member 220, the other end of the main body rod 211 is disposed on the piston head 212, the main body rod 211 and the piston head 212 may be connected by a screw thread, or may be fixedly connected by a welding manner, the screw thread is convenient for the replacement and maintenance of the piston head 212 in the future, and the welding manner is more beneficial to the stability of the overall structure of the telescopic member 210.
As shown in fig. 1, 2 and 4, a driving motor 221 is disposed on the driving element 220, the driving motor 221 is disposed on one side of the main body 100, a rotating rod 222 is disposed on the driving motor 221, an external thread 222a is disposed on the rotating rod 222, a threaded hole 211a adapted to the external thread 222a is disposed at one end of the main body 211, which is far away from the piston head 212, the rotating rod 222 is rotatably disposed in the threaded hole 211a, a length of the external thread 222a is smaller than a depth of the threaded hole 211a, and when a transmission requirement is met, the shorter the external thread 222a on the rotating rod 222 is, the smaller a friction force between the rotating rod 222 and the threaded hole 211a is, the smaller a friction force is applied when the rotating rod 222 rotates in the main body 211, and the lower energy consumption is generated when the rotating rod 222 drives the main body 211 to move.
When it is required to control the liquid flowing into the main body 100 to flow through the first liquid flow path, the driving motor 221 drives the rotating rod 222 to rotate clockwise, and when the rotating rod 222 rotates clockwise, under the cooperation between the external thread 222a and the threaded hole 211a, the rotating rod 222 drives the telescopic member 210 to move along the axial direction thereof toward the direction close to the driving motor 221 until the piston head 212 moves to a position between the first port 120 and the third port 140, at which time the first liquid flow path between the first port 120 and the second port 130 is kept open, the second liquid flow path between the first port 120 and the third port 140 is closed, and the liquid flows through the first liquid flow path; when it is required to control the liquid flowing on the second fluid flow path, the driving motor 221 drives the rotating rod 222 to rotate counterclockwise, and the rotating rod 222 rotates counterclockwise to drive the telescopic member 210 to move along the axial direction thereof in the direction away from the driving motor 221 until the piston head 212 moves to a position between the first port 120 and the second port 130, at which time the second fluid flow path between the first port 120 and the third port 140 is kept open, the first fluid flow path between the first port 120 and the second port 130 is closed, and the liquid flows in the second fluid flow path.
As a preferable scheme of the present invention, an adjusting part 221a is disposed on a side of the driving motor 221 away from the telescopic part 210, one end of the adjusting part 221a away from the driving motor 221 is connected to the rotating rod 222, the rotating rod 222 can be driven to rotate when the adjusting part 221a is rotated, and when a circuit of the driving motor 221 is abnormal and the driving motor 221 cannot drive the rotating rod 222 to rotate by itself, the rotating rod 222 can be rotated by manually rotating the adjusting part 221 a.
As another preferable aspect of the present invention, a guiding member 150 is disposed at one end of the liquid channel 110 close to the driving member 220, a rolling bearing 160 is disposed in the guiding member 150, the main rod 211 is movably inserted in the rolling bearing 160, the guiding member 150 and the rolling bearing 160 are disposed to ensure that the main rod 211 always moves along the axial direction of the main rod 221 under the driving of the rotating rod 222, and the main rod 221 is prevented from being broken due to swinging during movement, a first sealing ring 170 is disposed between the guiding member 150 and the main rod 211, the first sealing ring 170 can prevent the liquid in the liquid channel 110 from entering the rolling bearing 160, a second sealing ring 180 is disposed between the guiding member 150 and the liquid channel 110, the second sealing ring 180 can prevent the liquid in the liquid channel 110 from flowing out of the liquid channel 110 from the gap between the guiding member 150 and the liquid channel 110, the larger the number of the second sealing rings 180 is, the better sealing effect is, however, the greater the number of the corresponding second sealing rings 180, the higher the manufacturing cost of the control valve of the present invention.
As shown in fig. 5, a directional groove 212a is formed in an outer side wall of the piston head 212, a directional block 213 is arranged in the directional groove 212a, the directional block 213 is movably abutted against an outer side wall of the liquid passage 110, the directional block 213 can perform a directional function on the piston head 212 to ensure that a moving direction of the piston head 212 in the liquid passage 110 is always consistent with an axial direction of the piston head, a sealing groove 212b is formed in each of two sides of the directional groove 212a along the axial direction of the piston head 212, a third sealing ring 214 is arranged in each sealing groove 212b, the number of the sealing grooves 212b and the number of the third sealing rings 214 can be changed according to actual requirements, and the larger the number of the sealing grooves 212b and the third sealing rings 214 is, the better the sealing effect is.
As another preferable scheme of the present invention, the first port 120, the second port 130 and the third port 140 are all provided with a quick coupling 190, the quick couplings 190 and the first port 120, the second port 130 and the third port 140 are all in threaded connection, the threaded connection can realize quick replacement of the quick couplings 190, which facilitates the disassembly, assembly and maintenance of the present invention, preferably, a clearance groove 121 is provided between the first port 120 and the quick couplings 190, and the clearance groove 121 can accelerate the liquid flowing in the liquid channel 110 to pass through the first port 120.
As shown in fig. 1, the present invention further includes a housing 300, the housing 300 is disposed at a side of the main body 100 close to the driving member 220, a motor mounting groove 310 is disposed on the housing 300, the driving motor 221 is disposed in the motor mounting groove 310, a circuit board mounting groove 320 is further disposed at an upper end of the motor mounting groove 310, and a circuit board 330 is disposed in the circuit board mounting groove 320.
When the control valve of the utility model is in normal operation, the circuit board 330 arranged in the circuit board mounting groove 310 controls the driving motor 221 to drive the telescopic member 210 to move in the liquid channel 110, the telescopic member 210 drives the piston head 212 to move when moving, when the piston head 212 moves between the first port 120 and the second port 130, the first liquid circulation path between the first port 120 and the second port 130 is closed, the second circulation path between the first port 120 and the third port 140 is opened, and liquid flows in the second circulation path; when the piston head 212 moves between the first port 120 and the third port 140, a first fluid flow path between the first port 120 and the second port 130 is open, a second fluid flow path between the first port 120 and the third port 140 is closed, and fluid flows in the first flow path; when the circuit control of the driving motor 221 is abnormal, the rotating rod 222 can be driven to rotate by manually rotating the adjusting piece 221a, so as to drive the piston head 212 to move, and finally, the purpose of controlling the flow path of the liquid in the liquid channel 110 is achieved.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications, additions and substitutions for the described embodiments may be made by those skilled in the art without departing from the scope and spirit of the utility model as defined by the accompanying claims.
Claims (9)
1. A control device for controlling the direction of flow of a liquid, comprising:
a body having a liquid passage formed therein and a first port, a second port, and a third port communicating with the liquid passage, the first port and the second port forming a first liquid flow path, the first port and the third port forming a second liquid flow path;
the switching mechanism is provided with a telescopic piece and a driving piece for driving the telescopic piece, one end of the telescopic piece, which is far away from the driving piece, is provided with a piston head, and the piston head is movably arranged in the liquid channel;
when the piston head moves to different positions, the first liquid flow line can be controlled to be opened, the second liquid flow line can be controlled to be closed, or the first liquid flow line can be controlled to be closed, and the second liquid flow line can be controlled to be opened.
2. The control device as claimed in claim 1, wherein said extension member further comprises a body rod, one end of said body rod being disposed on said driving member and the other end of said body rod being disposed on said piston head.
3. The control device as claimed in claim 2, wherein a driving motor is disposed on the driving member, the driving motor is disposed on one side of the main body, a rotating rod is disposed on the driving motor, an external thread is disposed on the rotating rod, a threaded hole adapted to the external thread is disposed at an end of the main body rod away from the piston head, the rotating rod is rotatably disposed in the threaded hole, and the length of the external thread is smaller than the depth of the threaded hole.
4. A control device for controlling the flow direction of a liquid according to claim 3, wherein a side of the driving motor away from the telescopic member is provided with an adjusting member, an end of the adjusting member away from the driving motor is connected to the rotating rod, and the rotating rod can be driven to rotate when the adjusting member is rotated.
5. The control device as claimed in claim 2, wherein a guiding member is disposed at an end of the fluid passage near the driving member, a rolling bearing is disposed in the guiding member, the main rod is movably inserted in the rolling bearing, a first sealing ring is disposed between the guiding member and the main rod, and a second sealing ring is disposed between the guiding member and the fluid passage.
6. The device as claimed in claim 1, wherein a directional groove is formed on an outer side wall of the piston head, a directional block is disposed in the directional groove, the directional block is movably abutted against a side wall of the liquid passage, two sides of the directional groove along an axial direction of the piston head are respectively provided with a sealing groove, and a third sealing ring is disposed in each sealing groove.
7. The control device as claimed in claim 1, wherein the first port, the second port and the third port are each provided with a quick coupling, and the quick couplings are each threadedly coupled to the first port, the second port and the third port.
8. The control device as claimed in claim 3, further comprising a housing, wherein the housing is disposed on a side of the main body close to the driving member, the housing is provided with a motor mounting groove, the driving motor is disposed in the motor mounting groove, a circuit board mounting groove is further disposed at an upper end of the motor mounting groove, and a circuit board is disposed in the circuit board mounting groove.
9. A control valve comprising a control device for controlling the flow of a fluid according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121477280.7U CN215334631U (en) | 2021-06-30 | 2021-06-30 | Control device and control valve for controlling flow direction of liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121477280.7U CN215334631U (en) | 2021-06-30 | 2021-06-30 | Control device and control valve for controlling flow direction of liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334631U true CN215334631U (en) | 2021-12-28 |
Family
ID=79563499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121477280.7U Active CN215334631U (en) | 2021-06-30 | 2021-06-30 | Control device and control valve for controlling flow direction of liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334631U (en) |
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2021
- 2021-06-30 CN CN202121477280.7U patent/CN215334631U/en active Active
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