CN109827003B - Valve actuator using ratchet - Google Patents
Valve actuator using ratchet Download PDFInfo
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- CN109827003B CN109827003B CN201711183460.2A CN201711183460A CN109827003B CN 109827003 B CN109827003 B CN 109827003B CN 201711183460 A CN201711183460 A CN 201711183460A CN 109827003 B CN109827003 B CN 109827003B
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- ratchet
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Abstract
The present invention relates to a valve actuator using a ratchet for rotating a valve disc to open and close the valve, comprising: the driver shell is arranged on the upper part of the valve body; a cylinder assembly installed on the upper part of the driver shell and internally provided with a piston capable of repeatedly and horizontally moving; an arm portion connected to the piston and configured to convert a horizontal movement of the piston into a reverse rotation and a forward rotation; a ratchet wheel combined on the upper part of the rotating shaft of the valve disc; a steering lever coupled to the ratchet wheel and determining a rotation direction of the ratchet wheel; a pair of semicircular fixing members for rotating the steering rod, each of the pair of semicircular fixing members having one end fixed to a side of the ratchet opposite to the steering rod and the other end contacting a side surface of the steering rod; and a pair of pistons respectively contacting the pair of semicircular fixing members and mounted on the driver housing.
Description
Technical Field
The present invention relates to a valve actuator using a ratchet, which automatically opens and closes a valve using hydraulic pressure or pneumatic pressure in a remote manner.
Background
In order to remotely operate and open and close the valve, a vertically actuated cylinder driver is installed or the opening and closing is rotationally performed by a rack gear after a pinion gear is installed at a disk (disk) rotation shaft.
In the case of the vertical actuating cylinder actuator, there is a problem that the valve is opened when the hydraulic pressure is lost, and there is a problem that the shaft of the actuator becomes long in the case of the rack type actuator.
Therefore, in order to solve the problem that the shaft of the actuator becomes longer in proportion to the number of valve rotations, a method of opening and closing the valve by a multi-turn operation using a ratchet in the valve actuator is disclosed.
The background art relating to the valve actuator using the ratchet includes application No. 10-2015-.
Fig. 1 is a conceptual view of a valve to which a conventional multi-turn driver using a ratchet is mounted, and fig. 2 is a conceptual view of a conventional multi-turn driver using a ratchet.
The multi-turn actuator shown in fig. 1 is a type in which a valve actuator 100 including a horizontally reciprocating cylinder opens and closes a valve 200 by multi-turning a rotary shaft of a ratchet-coupled disk.
In the multi-turn actuator, a valve driving cylinder rod (cylinder rod)13 is attached to an inner space of a valve driving cylinder body 11 along a longitudinal direction of the valve driving cylinder body 11, valve driving cylinder pistons 12 are attached to both ends of the valve driving cylinder rod 13, and fluid is alternately introduced into the inner space of the valve driving cylinder body 11 through inlet holes 11a formed at both ends of the valve driving cylinder body 11, so that the valve driving cylinder rod 13 linearly reciprocates along the longitudinal direction of the cylinder body 11.
The linear reciprocating motion is converted into rotation in a single direction by the ratchet coupled to the rotation shaft of the disk by repeating normal rotation and reverse rotation of the arm 31 linked to the connecting pin 14.
The ratchet determines the normal rotation and the reverse rotation by a steering rod during the opening and closing of the valve, and the steering rod is installed together with the ratchet, so that a rod control cylinder for driving the steering rod is also installed together with the ratchet, and the cylinder is controlled by an external connection terminal.
Therefore, the problem of breakage of the connection terminal may occur during continuous use.
Further, the structure in which the rod control cylinder is mounted to the upper portion of the ratchet gear has a problem in that it is difficult to support the rotation shaft of the disk at the upper portion.
Disclosure of Invention
Solves the technical problem
The invention relates to a valve driver utilizing a ratchet wheel, aiming at improving the steering rod operation structure of the ratchet wheel. Means for solving the problems
The invention relates to a valve driver using ratchet wheel, which is a valve driver making valve disc rotate to open and close valve, comprising: the driver shell is arranged on the upper part of the valve body; a cylinder assembly installed on the upper part of the driver shell and internally provided with a piston capable of repeatedly horizontally moving; an arm portion connected to the piston and configured to convert a horizontal movement of the piston into a reverse rotation and a forward rotation; a ratchet wheel combined on the upper part of the rotating shaft of the valve disc; a steering lever coupled to the ratchet wheel and determining a rotation direction of the ratchet wheel; a pair of semicircular fixing members for rotating the steering rod, each of the pair of semicircular fixing members having one end fixed to a side of the ratchet opposite to the steering rod and the other end contacting a side surface of the steering rod; and a pair of pistons respectively contacted with the pair of semicircular fixing pieces and mounted on the driver shell.
Further, the end of the piston includes an idler roller (idler roller) in contact with a pair of semi-circular fasteners.
Further, the cylinder assembly includes: a rotor connected to the arm portion; a connecting frame which is linked with the protruding part of the rotor and moves towards the left and the right; and a flow path switching unit for shielding the flow paths of the oil supply blocks respectively connected to the left and right spaces of the piston by means of the left and right movement of the connecting frame.
Further, the flow path switching unit includes: a left and right flow path for connecting the oil supply block and a left and right space of the piston; a left and right side switch for opening and closing the left and right flow paths, respectively; and a left and right operation device which is linked with the movement of the connecting frame to respectively operate the left and right switches.
Further, the left and right side operation device includes: a housing mounted adjacent to the left and right switches; an actuating rod horizontally movably installed inside the housing and horizontally moved by the movement of the link; a pressing member, which is provided with a through hole for the actuating rod to pass through and is horizontally movably installed in the shell; an extension spring installed between the actuating lever and an inner side of the housing; a compression spring installed between the actuating lever and the pressing member on an opposite side of the extension spring; a holder which is in contact with a stopper projection formed on one side surface of the pressing member; a latch body formed by extending from the actuating rod, for releasing the bracket by means of the horizontal movement of the actuating rod.
Advantageous effects
The valve actuator using the ratchet according to the present invention determines the direction of the ratchet using a pair of semicircular fixtures and a pair of pistons installed at the actuator housing, thereby solving the problem of the discontinuity of the external connection terminals from the source.
Further, the present invention provides a valve actuator using a ratchet in which a piston operating a steering rod can be installed outside the ratchet, thereby providing a structure for stably supporting a disk rotation shaft.
Drawings
Fig. 1 is a conceptual diagram of a valve equipped with a conventional multi-turn driver using a ratchet.
Fig. 2 is a conceptual diagram of a conventional multi-turn driver using a ratchet.
Fig. 3 is a conceptual diagram of a valve equipped with a valve actuator using a ratchet according to a preferred embodiment of the present invention.
Fig. 4 is a conceptual diagram of a valve actuator using a ratchet according to a preferred embodiment of the present invention.
Fig. 5 is a perspective view illustrating the operation of a semi-cylindrical fixing member and a pair of pistons according to a preferred embodiment of the present invention.
Fig. 6 is a variation of fig. 5.
Fig. 7 is a conceptual view of a cylinder assembly according to a preferred embodiment of the present invention.
Fig. 8 is a conceptual view of a left and right operation device according to a preferred embodiment of the present invention.
Fig. 9 is a variation of fig. 8.
Description of reference numerals
100: the valve driver 110: cylinder assembly
111a, 111 b: left and right flow paths 112: piston
114: projection groove 118: rotor
118a, 118 b: the projection 119: connecting frame
119 a: attachment frame projection 120: driver shell
120 a: ratchet gear 121: ratchet wheel
126a, 126 b: locking piece 126 c: spring
128: the steering lever 130: arm part
131: slot 140: flow path switching unit
150: a pair of semicircular fixing pieces 160a, 160 b: a pair of pistons
162: idle roller 170: left and right side switch
172: housing 174: actuating lever
175: the latch body 176: pressing piece
176 a: stopper projection 177: support frame
178: tension spring 179: compression spring
180: flow path switching unit 190: oil supply block
200: valve 210: disc (disk) rotating shaft
Detailed Description
A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 3 is a conceptual diagram of a valve equipped with a valve actuator using a ratchet according to a preferred embodiment of the present invention.
As shown in fig. 3, the present invention employs a ratchet valve actuator to install a valve actuator 100 on an upper side of a valve, the valve actuator 100 being operatively connected to a rotary shaft 210 of a disk (disk) for opening and closing the valve 200, the valve actuator 100 basically comprising: a cylinder assembly 110 generating a left and right reciprocating motion; the driver housing 120 incorporates a ratchet 121 (see fig. 4), and the ratchet 121 converts the reciprocating motion in the left-right direction into a single-direction rotation.
Fig. 4 is a conceptual diagram of a valve actuator using a ratchet according to a preferred embodiment of the present invention.
As shown in fig. 4, the valve actuator using the ratchet according to the present invention includes a ratchet 121, an actuator housing 120 having the ratchet built therein, a cylinder assembly 110, an arm 130, a steering rod 128, a pair of semicircular fixtures 150, and a pair of pistons 160a and 160 b.
First, the actuator housing 120 is mounted on the upper portion of the valve body, the cylinder assembly 110 is mounted on the upper portion of the actuator housing 120, and the piston 112 repeatedly horizontally moves is built in the cylinder assembly 110.
The piston 112 is repeatedly moved horizontally by sequentially flowing in a fluid through a flow path switching unit 140 connected to the left and right flow paths 111a and 111 b.
The repeated horizontal movement of the piston 112 is converted into forward and reverse rotations by the arm 130. Although fig. 4 shows the arm 130 and the rotation shaft to which the ratchet 121 is attached as separated from each other, the arm 130 and the ratchet 121 are attached to have the same rotation center as each other as shown in fig. 3.
The arm 130 has an insertion groove 131 formed at an eccentric position, and the protrusion groove 114 formed in the piston 112 is inserted into the insertion groove 131 to convert the horizontal movement of the piston 112 into the forward rotation and the reverse rotation.
In addition to the embodiment shown in fig. 4, the present invention can be applied to a configuration in which a pinion is attached to the arm portion 130, a rack is attached to the piston 112, and the rack drives the pinion to rotate forward and backward by the horizontal movement of the piston 112 in the left-right direction.
The motion conversion method of the structure has been applied in various forms, and will not be described in detail here.
The normal rotation and reverse rotation of the arm 130 are switched by the flow path switching unit 140 by controlling the fluid flowing through the left and right flow paths 111a and 111b connected to the piston 112.
However, the flow path switching unit 140 shown in fig. 4 discloses a structure in which the left and right flow paths 111a, 111b are directly controlled by the operation member by means of the rotation operation of the arm 130, but the present invention discloses the flow path switching unit 140 in an improved form, and the arrangement of the flow path switching unit 140 will be described later.
Next, the ratchet 121, the steering rod 128, the pair of semicircular fixtures 150, and the pair of pistons 160a and 160b will be described.
Fig. 5 is a perspective view illustrating an operation principle of a semi-cylindrical fixing member and a pair of pistons according to a preferred embodiment of the present invention, and fig. 6 is a variation of fig. 5.
As shown in fig. 5, the ratchet 121 is installed at the rotational shaft 210 of the disk, and the ratchet 121 functions to convert the rotation into a single direction for opening and closing.
The ratchet 121 includes a ratchet gear (ratchet gear)120a directly coupled to the rotation shaft 210 of the disc, a steering rod 128 determining a rotation direction of the ratchet gear 120a, and locking members 126a and 126b operated by the steering rod 128, and an operation principle for steering the steering rod will be omitted.
Here, the locking members 126a and 126b are provided with springs 126c for returning to the original positions.
Here, the steering rod 128 is operated by a pair of semicircular fixing members 150, each of which has one end fixed to the ratchet 121 (indicated by P in fig. 5) at the opposite side of the steering rod 128 and the other end in contact with one side of the steering rod 128.
That is, even if the ratchet 121 rotates, the pair of semicircular fixtures 150 operate the steering rod 128 by an external force acting externally.
A pair of pistons 160a, 160b capable of operating a pair of semicircular fixtures 150 from the outside are installed at the driver housing 120 to be in contact with the pair of semicircular fixtures 150, respectively.
Here, the ends of the pair of pistons 160a, 160b further include idle rollers 162 contacting the pair of semicircular fixtures 150, and the idle rollers 162 prevent a phenomenon in which the pair of semicircular fixtures 150 are worn away due to friction caused by continuous contact.
An embodiment in which a pair of semicircular fixing members 150 are operated by the pair of pistons 160a, 160b will be described.
As shown in fig. 6, in comparison with fig. 5, in the case where the left-side piston 160b is retreated (moved leftward in fig. 6) and the right-side piston 160a is advanced (moved leftward in fig. 6), the pair of right-side semicircular fixing pieces 150 are deformed and the steering rod 128 is rotated to engage the locking piece 126a with the ratchet gear 120a, thereby changing the direction.
That is, even if the pair of semicircular fixtures 150 rotate, the steering rod 128 can be conveniently operated by the pair of pistons 160a, 160b installed at both sides.
Next, the operation of the cylinder assembly 110 will be described.
Fig. 7 is a conceptual view of a cylinder assembly according to a preferred embodiment of the present invention.
As shown in fig. 7, the cylinder assembly 110 includes a rotor 118, a link frame 119, and a flow path switching unit 180.
First, the rotor 118 is coupled to the arm 130 for forward and reverse rotation, and the link 119 moves to the left and right side in conjunction with the protrusion 118a of the rotor 118.
Here, the link frame 119 is formed with a link frame protrusion 119a and contacts the rotor protrusion 118a to convert the rotational motion of the rotor 118 into a reciprocating horizontal motion.
The movement of the link 119 in the left and right directions drives the flow path switching unit 180, and the flow path switching unit 180 can block the flow paths 111a and 111b of the oil feed block 190 connected to the left and right spaces of the piston 112, respectively.
The flow path switching unit 180 includes: left and right flow passages 111a, 111b connecting the oil feed block 190 and the left and right spaces of the piston 112; a left and right side switch 170 for opening and closing the left and right flow paths 111a and 111b, respectively; and left and right operation devices for operating the left and right switches 170 in conjunction with the movement of the link.
In the process of switching the direction, the flow path switching unit 140 may be stopped when the fluid supply process is interrupted in the middle.
Left and right side operating devices may be installed to solve this problem.
Fig. 8 is a conceptual view of a left and right operation device according to a preferred embodiment of the present invention, and fig. 9 is a variation of fig. 8.
The left and right side operating device includes a housing 172, an actuating rod 174, a pressing member 176, an extension spring 178, a compression spring 179, a bracket 177, and a latch 175.
First, a housing 172 is installed adjacent to the left and right switches 170, and an actuating rod 174 is horizontally movably installed inside the housing 172, and is horizontally moved by the movement of the link bracket 119.
Then, the method comprises the following steps: a pressing member 176 having a through hole through which the actuating rod 174 is inserted and horizontally movably installed in the housing 172; an extension spring 178 installed between the actuating rod 174 and an inner side of the housing 172; a compression spring 179 installed between the actuating rod and the pressing member 176 on the opposite side of the extension spring; a bracket 177 contacting a stopper protrusion 176a formed on one side surface of the pressing member 176; a latch 175 extended from the actuating rod 174 for releasing the bracket 177 by the horizontal movement of the actuating rod 174.
As shown in fig. 9, when the actuating lever 174 is moved toward the right side by the movement of the link frame 119, the latch body 175 advances together so that the bracket 177 is separated from the stopper projection 176 a.
When the holder 177 is separated from the stopper projection 176a, the pressing member 176 is abruptly moved to the right side by the elastic force of the compression spring 179 to open and close the flow path.
That is, when the actuating lever is moved to a position to separate the brackets, it will move to the bottom without stopping in the middle due to the elastic force of the compression spring 179.
In contrast, when the link bracket moves toward the opposite side, the pressing member 176 and the actuating rod 174 return to their original positions by the tensile force of the tension spring 178 installed at the opposite side of the compression spring 179, and the bracket is again brought into contact with the stopper protrusion 176a of the pressing member 176.
It is mentioned here that the bracket 177 is provided with a spring for returning to the original position.
As described above, the main technical idea of the present invention is to provide a valve actuator using a ratchet, and the above-described embodiment described with reference to the accompanying drawings is only one embodiment, and therefore the true scope of the present invention should be determined by the claims.
Claims (5)
1. A valve actuator using a ratchet for rotating a valve disc to open and close a valve, comprising:
the driver shell is arranged on the upper part of the valve body;
a cylinder assembly installed at an upper portion of the driver housing and having a piston repeatedly horizontally movable therein;
an arm portion connected to the piston and configured to convert a horizontal movement of the piston into a reverse rotation and a forward rotation;
a ratchet wheel combined on the upper part of the rotating shaft of the valve disc;
a steering lever coupled to the ratchet wheel and determining a rotation direction of the ratchet wheel;
a pair of semicircular fixing members for rotating the steering rod, each of the pair of semicircular fixing members having one end fixed to a side of the ratchet opposite to the steering rod and the other end contacting a side surface of the steering rod; and
and a pair of pistons respectively contacted with the pair of semicircular fixing pieces and mounted on the driver shell.
2. The valve actuator using a ratchet according to claim 1,
the ends of the pair of pistons further include idle rollers that contact the pair of semicircular fixing members, respectively.
3. The valve actuator using a ratchet according to claim 1,
the above-mentioned cylinder assembly includes:
a rotor connected to the arm portion;
a connecting frame which is linked with the protruding part of the rotor and moves towards the left and the right; and
and a flow path switching unit for shielding the flow paths of the oil supply blocks respectively connected to the left and right spaces of the horizontally moving piston by means of the left and right movement of the connecting frame.
4. The valve actuator using a ratchet according to claim 3,
the flow path switching unit includes:
a left-right flow path for connecting the oil feed block to the left-right space of the horizontally moving piston;
a left and right side switch for opening and closing the left and right flow paths, respectively; and
and a left and right operation device which is linked with the movement of the connecting frame to respectively operate the left and right switches.
5. The valve driver using a ratchet according to claim 4,
the left and right operation device includes:
a housing mounted adjacent to the left and right switches;
an actuating rod horizontally movably installed inside the housing and horizontally moved by the movement of the link;
a pressing member, which is provided with a through hole for the actuating rod to pass through and is horizontally movably installed in the shell;
an extension spring installed between the actuating lever and an inner side of the housing;
a compression spring installed between the actuating lever and the pressing member on an opposite side of the extension spring;
a holder which is in contact with a stopper projection formed on one side surface of the pressing member; and
a latch body formed by extending from the actuating rod, for releasing the bracket by means of the horizontal movement of the actuating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183460.2A CN109827003B (en) | 2017-11-23 | 2017-11-23 | Valve actuator using ratchet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183460.2A CN109827003B (en) | 2017-11-23 | 2017-11-23 | Valve actuator using ratchet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109827003A CN109827003A (en) | 2019-05-31 |
| CN109827003B true CN109827003B (en) | 2020-08-21 |
Family
ID=66858985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711183460.2A Active CN109827003B (en) | 2017-11-23 | 2017-11-23 | Valve actuator using ratchet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109827003B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB166086A (en) * | 1920-03-25 | 1921-06-27 | Nicholas Alfred Petry | Improvements in mechanism for operating oscillatory valves |
| JP2002013665A (en) * | 2000-06-30 | 2002-01-18 | Kurimoto Ltd | Vacuum valve |
| CN201106709Y (en) * | 2007-09-17 | 2008-08-27 | 启东市冶金机械有限公司 | Sealing-locking device for sphere clock valve |
| CN203162310U (en) * | 2013-04-10 | 2013-08-28 | 中西定之 | Yoke-type driving device of rotation stopping bar |
| CN104455677A (en) * | 2014-11-27 | 2015-03-25 | 河南煜达阀门制造有限公司 | Drive device for butterfly valve |
| CN105020462A (en) * | 2015-06-25 | 2015-11-04 | 西安航天动力试验技术研究所 | Hand valve with moment limiter |
-
2017
- 2017-11-23 CN CN201711183460.2A patent/CN109827003B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB166086A (en) * | 1920-03-25 | 1921-06-27 | Nicholas Alfred Petry | Improvements in mechanism for operating oscillatory valves |
| JP2002013665A (en) * | 2000-06-30 | 2002-01-18 | Kurimoto Ltd | Vacuum valve |
| CN201106709Y (en) * | 2007-09-17 | 2008-08-27 | 启东市冶金机械有限公司 | Sealing-locking device for sphere clock valve |
| CN203162310U (en) * | 2013-04-10 | 2013-08-28 | 中西定之 | Yoke-type driving device of rotation stopping bar |
| CN104455677A (en) * | 2014-11-27 | 2015-03-25 | 河南煜达阀门制造有限公司 | Drive device for butterfly valve |
| CN105020462A (en) * | 2015-06-25 | 2015-11-04 | 西安航天动力试验技术研究所 | Hand valve with moment limiter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109827003A (en) | 2019-05-31 |
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Effective date of registration: 20200803 Address after: Han Guoqingshangnandao Applicant after: VTL Limited Address before: 605, building 221110, pingtian Road, gyeongshang South Road, South Korea Applicant before: Xian Guangzhi Applicant before: Jin Zhonglie |