KR101816771B1 - Link rod segment type No seat ball valve - Google Patents

Abstract

The present invention relates to a ball valve which avoids interference with a body when moved by an operation of a segment ball to which a link rod is attached, and maintains airtightness of a fluid without using a seat when closed. The present invention has the following effects. Operating torque of the valve can be greatly lowered by removing interference and wear between a ball and a body when opening and rotating the ball valve as a result of applying a link rod, and friction and wear between components are eliminated to extend a service life of a product. Also, since a pipe can be closed by directly inserting a segment ball into the pipe as a result of applying the link rod to eliminate a need for using a separate seat for an airtightness maintaining purpose, numerous problems caused by conventional seat application including periodic seat replacement, seat changes by fluid types, and seat application limitations by fluid temperature and surrounding temperature are resolved to allow continuous use of the valve for a long period of time without frequent repair work.

Description

Link rod segment type zero seat ball valve {omitted}

The present invention relates to a segmented ball valve with a link rod, which prevents interference between a segment ball and a body when the ball valve is opened and closed, and a ball which can maintain the airtightness of the fluid without using a seat at the time of closing. Valve.

As shown in Fig. 15, a general ball valve is provided with a ball-shaped opening / closing device (disk) having a hole at an opening and closing portion of the valve. By rotating the valve, the hole is closed or opened to open and close the valve.

Since the outer shape of the ball valve disc 3 is in the form of a ball and the inside thereof is almost the same as the cross-sectional area of the tube, the resistance is small and the airtightness maintaining property is good. However, in order to secure airtightness and reduce the operation torque, 2) is mounted in a general manner.

In the case of a general ball valve, since the ball 3 is closely attached in the direction of the body 1 with a constant pressure in order to prevent the fluid in the valve from flowing out when the valve is closed, friction and wear .

The technique developed to prevent friction and abrasion during rotation is double eccentric or rising stems.

The double eccentric technology is a method in which the ball is formed in a hemispherical segment rather than a sphere and the rotation axis thereof is eccentrically twisted twice from the center of the valve, so that the center of the segment ball is different from the center of the valve during rotation, Only when the rotation is finished, the pipe line of the valve is closed by contacting with the seat using a circular plug formed in the segment ball.

Rising Stem technology is a technique to lift the upper shaft connected to the disc immediately before rotation to remove the interference caused by the rotation when the valve is opened and closed during rotation for opening and closing the valve. In the case of the ball valve, The ball and the body cause additional interference, and the tilting method of tilting the ball at an angle while raising the ball is further applied.

However, in most of the cases where the double eccentricity and rising system described above are applied, the structure tends to be somewhat complicated. In addition, friction and abrasion occurring during rotation can be avoided through respective techniques. However, In order to maintain airtightness in the valve, it is still necessary to mount a seat of various materials.

As a result, in the case of a valve to which a sheet is to be mounted, it is necessary to periodically replace the sheet, and in particular, in a valve applied to high / low temperature and special fluids, general resin- Or special sheets, but it still contains many difficulties in terms of cost and operation.

Patent No. 10-0975337 (Aug. 5, 2010)

In order to solve the above-mentioned problem, in the present invention, the link rod is provided between the segment ball and the center shaft, and when the ball is rotated, the inner side of the body does not interfere with the segment ball. The present invention provides an innovative ball valve that eliminates the need for a resin or a metal sheet used for friction reduction and airtightness by interposing a flow fluid.

In order to solve the above problems,

A center shaft 210 coupled to the upper end of the segment ball 230, a link rod 220 installed between the center shaft 210 and the segment ball 230, An actuating part 200 including a fixed shaft 240 installed between the balls 230 and converting the vertical lift motion H of the center shaft 210 to the oblique lifting movement A of the segment ball 230, ; A handle 110 for generating a horizontal rotation movement R, a vertical drive mechanism H for rotating the first driver 130 and the first driver 130 integrally rotating with the handle 110, A driver (100) including a second driver (140) that performs a horizontal rotation (R) in unison with the first driver (130); A housing 320 which houses the driving part 100 at the upper part and guides the vertical movement H and the horizontal rotation R of the second driving part 140, And a body part 300 including a body 350 for guiding the horizontal rotation movement R of the shaft 240. The segment ball 230 is directly contacted to the body 350 without a sheet and,

The fixed shaft 240 includes a motion control protrusion 242 formed at one side of the rotation surface of the fixed shaft 240 and the body 350 is fixed to the stationary shaft 240 The fixed shaft coupling portion 351 includes a fixed shaft rotation guide groove 351a formed by a transverse groove through which the motion control projection 242 passes when the fixed shaft 240 rotates integrally with the segment ball 230, ) Of the fixed shaft (240) so as to guide the horizontal rotation (R) of the fixed shaft (240), and to limit the displacement in the vertical direction,

The first driver 130 includes an upper body 135 coupled to the handle 110, a lower body 136 coupled to the second driver 140, a male thread 133 formed on the lower body 136, And a detent projection 132 formed at the boundary between the upper body 135 and the lower body 136. The second driver 140 includes a first driver 130 and a second driver 140, And a stopping protrusion 142a corresponding to the stopping protrusion 132 of the first driver 130 is formed at the upper end of the female threaded portion 142. Alternatively,

The link rod 220 includes an engagement pin 223 for hinging the center shaft 210 and the link rod 220 and an engagement pin 224 for hinging the segment ball 230 and the link rod 220 And the segment ball 230 includes an engagement pin 233 for hinging the fixed shaft 240 and the segment ball 230,

The second driver 140 includes a motion control protrusion 143 protruding from one side of a surface coupled to the housing 320. The housing 320 includes a second motor 140, A driving member rotation guide groove 321 in which a driving member rotation stopping jaw 321a is formed on one side as a transverse groove through which the control projection 143 passes and a motion control projection 143 of the second driving member 140 vertically moving up and down passes And a driving member lifting / lowering guide groove (322) coupled to the driver rotation guide groove (321) in a '' 'shape as a vertical groove,

The driving unit 100 further includes a spring-type spring plunger 120 coupled to the first driver 130. The spring plunger 120 includes a spring inside the cylinder and a plunger ball 121 And the second driver 140 is formed such that a part of the plunger ball 121 protrudes from the lower end of the upper body 135 of the first driver 130, Further comprising a plunger ball seating groove (141) formed such that the plunger ball (121) of the spring plunger (120) rotates together with the first driver (130) No) seat ball valve.

The present invention has the following effects.

That is, as a result of the application of the link load, the interference between the ball and the body, which occurs during the opening and closing rotation, is eliminated, thereby extending the service life of the product.

In addition, as a result of the application of the link rod, the segment ball can be directly inserted into the pipeline to close the pipeline, thereby avoiding the use of a sheet for air tightness.

Further, since the sheet is not used, there is an effect that continuous use for a long time is possible without frequent maintenance work such as regular sheet replacement.

In addition, since the sheet is not used, the sheet selection process, which is required to be changed according to the type of fluid, is omitted.

Further, since the sheet is not used, there is an effect that the application range of the valve to the fluid temperature and the ambient temperature (cryogenic temperature and extreme high temperature), which is limited to the limit of the sheet material, is expanded.

Further, since the sheet is not used, the processing operation of the portion for attaching the sheet to the body and the peripheral parts are unnecessary, the production process is simplified, and the effect is great for the processing cost and energy reduction.

In addition, since the sheet is not used, the risk of spillage due to the application of the wrong sheet is eliminated, and in particular, when the fire occurs, it is possible to maintain normal airtightness even under a lot of heat and rapid temperature rise.

Further, since the sheet is not used, it is possible to produce an eco-friendly product in which the emission of various environmental pollutants is reduced.

1 is a perspective view of a valve contour according to an embodiment of the present invention;
2 is an exploded view showing a configuration of the present invention;
Fig. 3 is an exploded view showing a coupling sequence of each configuration of Fig. 2; Fig.
4 is a detailed structural exploded view of the operation part 200. Fig.
5 is an exploded view and a detailed view showing a detailed configuration of the body 350 and the fixed shaft 240. Fig.
6 is an exploded view showing a detailed configuration of a driving unit 100 and a housing 320. Fig.
FIG. 7 is a perspective view showing a coupled state of the driving unit 100 and the housing 320; FIG.
Fig. 8 to Fig. 13 are perspective views showing the operation of the valve in detail.
14 is an exploded view of another embodiment of Figs. 1 and 4. Fig.
15 is a perspective view of a conventional ball valve on which a seat is mounted;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the scope of the present invention should be understood by reference to the appended claims, and the description of known technologies which obscure the gist of the present invention will be omitted.

It should be noted that the directions of "upper" and "lower" in the description of the present invention are directed to the shape of the drawings in order to facilitate understanding.

The present invention is summarized as follows.

A central axis 210 coupled to the upper end of the segment ball 230; a link rod 220 disposed between the central axis 210 and the segment ball 230; And an actuating part 240 for switching the vertical lift motion H of the center shaft 210 to the oblique lifting movement A of the segment ball 230 including the fixed shaft 240 installed between the segment ball 230 200); A handle 110 for generating a horizontal rotation movement R, a vertical drive mechanism H for rotating the first driver 130 and the first driver 130 integrally rotating with the handle 110, A driver (100) including a second driver (140) that performs a horizontal rotation (R) in unison with the first driver (130); A housing 320 which houses the driving part 100 at the upper part and guides the vertical movement H and the horizontal rotation R of the second driving part 140, And a body part 300 including a body 350 for guiding the horizontal rotation movement R of the shaft 240. The segment ball 230 is directly contacted to the body 350 without a sheet and,

The fixed shaft 240 includes a motion control protrusion 242 formed at one side of the rotation surface of the fixed shaft 240 and the body 350 is fixed to the stationary shaft 240 The fixed shaft coupling portion 351 includes a fixed shaft rotation guide groove 351a formed by a transverse groove through which the motion control projection 242 passes when the fixed shaft 240 rotates integrally with the segment ball 230, ) Of the fixed shaft (240) so as to guide the horizontal rotation (R) of the fixed shaft (240), and to limit the displacement in the vertical direction,

The first driver 130 includes an upper body 135 coupled to the handle 110, a lower body 136 coupled to the second driver 140, a male thread 133 formed on the lower body 136, And a detent projection 132 formed at the boundary between the upper body 135 and the lower body 136. The second driver 140 includes a first driver 130 and a second driver 140, And a stopping protrusion 142a corresponding to the stopping protrusion 132 of the first driver 130 is formed at the upper end of the female threaded portion 142. Alternatively,

The link rod 220 includes an engagement pin 223 for hinging the center shaft 210 and the link rod 220 and an engagement pin 224 for hinging the segment ball 230 and the link rod 220 And the segment ball 230 includes an engagement pin 233 for hinging the fixed shaft 240 and the segment ball 230,

The second driver 140 includes a motion control protrusion 143 protruding from one side of a surface coupled to the housing 320. The housing 320 includes a second motor 140, A driving member rotation guide groove 321 in which a driving member rotation stopping jaw 321a is formed on one side as a transverse groove through which the control projection 143 passes and a motion control projection 143 of the second driving member 140 vertically moving up and down passes And a driving member lifting / lowering guide groove (322) coupled to the driver rotation guide groove (321) in a '' 'shape as a vertical groove,

The driving unit 100 further includes a spring-type spring plunger 120 coupled to the first driver 130. The spring plunger 120 includes a spring inside the cylinder and a plunger ball 121 And the second driver 140 is formed such that a part of the plunger ball 121 protrudes from the lower end of the upper body 135 of the first driver 130, Further comprising a plunger ball seating groove (141) formed such that the plunger ball (121) of the spring plunger (120) rotates together with the first driver (130) No-seat ball valve.

FIG. 1 is a perspective view of an outer shape of a ball valve according to an embodiment of the present invention, and FIG. 2 is an exploded view showing the configuration of the present invention.

The present invention relates to a link rod segment type idle seat ball valve comprising a driving unit 100, an operating unit 200 and a body unit 300 as shown in FIG. 2, Are combined in the same order.

4 is an exploded detailed view of an operating part 200 including a core mechanism of the present invention and includes a center axis 210, a link rod 220, a segment ball 230, and a fixed axis 240.

The center shaft 210 is formed with a driver coupling protrusion 211 to be coupled to the second driver 140 and a link rod coupling protrusion 212 to be coupled with the link rod 220, The pin coupling holes 211a and 212a are formed in the upper and lower portions of the center shaft 210 to connect the center driver coupling groove 144 and the center shaft coupling portion 221a of the second driver 140 and the link rod 220, And the engagement pins 145 and 223, respectively.

The link rod 220 serves to connect the center axis 210 and the segment ball 230, and one or more link rods 221 and 222 are hingedly connected. The upper ends of the link rods 221 and 222 are hinged to the center shaft 210 by engagement pins 223 and the lower ends of the link rods 221 and 222 are hinge- do. In other words, the center shaft 210 is coupled to the upper portion by the segment ball 230 and the engaging pins 223 and 224 at the lower portion, and the vertical lift movement transmitted from the center shaft 210 as a result of the hinge movement of both ends The segment ball 230 is separated from the body 350 to avoid interference when the valve is opened and closed and the segment ball 230 is moved to the body 350 So that the flow of the fluid can be effectively blocked. The link rod 220 has a center shaft coupling portion 221a and a segment ball coupling portion 221b having a sufficient area for efficiently transmitting the rotational force of the center shaft 210 to the segment ball 230, Includes a segment ball bearing surface 221c that corresponds to the link rod contact surface 231e of the segment ball 230 so that the segment ball 230 can support the pressure it receives from the fluid.

The number of the segment balls 230 is required to be at least one to two or more according to the number of the conduits 352 to be controlled It is possible to increase the number thereof. The contact surface 231a and the insertion port 231b of the segment ball 230 are connected to the segment ball 230 by the operation of the link rod 220 for realizing the ball valve which does not use the sheet, It should be designed so as to be in tight contact with the ball contact surface 353a of the body 350 at the time of closing so that interference with the body 350 can be avoided when inserting or extracting into or from the channel 352. The segment ball 230 is connected by a link rod 220 and an engagement pin 224 at an upper portion thereof and by a joint pin 233 at a lower portion thereof to perform a hinge movement. A link rod coupling protrusion 231c and a fixed shaft coupling protrusion 231d designed to have a large area.

The fixed shaft 240 is coupled with the engagement pin 233 between the segment ball 230 and the body 350 and serves as a reference point for the operation of the link rod 220. That is, the vertical lift movement H transmitted from the center shaft 210 is converted into the oblique lift movement A as a result of the hinge movement of the link rod 220 and the segment ball 230 . The fixed shaft 240 is connected to the upper portion by a segment ball 230 and an engaging pin 233 to perform a hinge movement in order to serve as such a fixed point and is fixed to the body 350 at a lower portion, And only the horizontal rotation (R) is performed together with the segment ball (230). The engagement and movement of the fixed shaft will be described in detail with reference to FIG.

5 is an exploded view and a detailed view showing a detailed configuration of the body 350 and the fixed shaft 240. The fixed shaft coupling portion 351 is formed at a lower portion of the body 350, Guide the user to perform a role as a reference point for the hinge movement. The fixed shaft rotation guide groove 351a of the body 350 corresponds to the motion control projection 242 of the fixed shaft 240 and the fixed shaft 240 rotates in the horizontal direction when it rotates integrally with the segment ball 230 R). The fixed axis upstanding tilting jaw 351b of the body 350 also corresponds to the motion control projection 242 of the fixed shaft 240 so that when the segment ball 230 performs the oblique lifting motion A, To prevent it from climbing. In addition, the shape of the motion control protrusion 242 of the fixed shaft 240 may be changed into various shapes such as a disc shape and the like, as the case may be.

6 is an exploded view showing a detailed configuration of the driving unit 100 and the housing 320. As shown in FIG. The driving unit 100 transmits the horizontal rotary motion R that is started by the rotation of the handle 110 to the lower portion of the first driving unit 130 and the second driving unit 140, The motion of the second driver 140 connected to the center axis 210 of the operation unit 200 is switched to the vertical lift motion H and the horizontal rotation movement R. [

The handle 110 may be in the form of a lever as shown in the figure, but may include any type capable of controlling the rotation of the rotary shaft such as a handle type, a coke type, and the like. (111) are formed.

The spring plunger 120 is provided with a spring in the cylinder and a plunger ball 121 is coupled to a lower portion of the spring so that a part of the plunger ball 121 protrudes from the lower end of the cylinder. The plunger ball 121 rotates together with the first driver 130 rotating when the second driver 140 is lifted and is coupled to the plunger ball seating groove 141 of the second driver 140 to rotate in a reverse direction Counterclockwise) to compensate for the rotational force. That is, in the forward (clockwise) rotation, the stopper protrusion 132 of the first driver 130 abuts against the stopper 142a of the second driver to transmit a sufficient rotational force. However, when the counter- This is a device to compensate for a weak point where there is no projection and jaws facing each other and a sufficient rotational force can not be ensured. The applied amount can be increased or decreased according to the required reverse (anticlockwise) rotational force.

 The first driver 130 is coupled with the handle and integrally rotates to form a knob coupling protrusion 131, a detent protrusion 132, a male screw portion 133, and a spring plunger coupling portion 134. The knob coupling protrusion 131 corresponds to the driver coupling groove 111 of the knob at the upper end, and the shape thereof may be formed contrary to the need. The male screw portion 133 is a screw thread formed in the lower body 136 of the first driver 130 and does not extend to the upper end portion of the lower body 136 for forming the detent protrusion 132. [ The detent protrusion 132 is formed horizontally at the boundary between the upper body 135 and the lower body 136 and rotates in a forward (clockwise) rotation direction in response to the detent jaw 142a of the second driver 140 . The spring plunger engaging portion 134 is formed in the upper body 135 and should be designed so that the plunger ball 121 of the spring plunger 120 partially protrudes.

The second driver 140 may switch the horizontal rotation movement R of the first driver 130 transferred from the handle to the vertical lift movement H or may be integrated with the first driver 130, And is a device for rotating motion R, which directly drives an operation part 200 connected to the lower part. The female screw portion 142 of the second driver is a screw groove formed so as to correspond to the male screw portion 133 of the first driver 130 and has a stopper 132 of the first driver 130 at the end of the upper screw, And a corresponding detent jaw 142a is formed. As the first driver 130 rotates, the male screw portion 133 of the first driver 130 and the female screw portion 142 of the second driver 140 engage with each other and the second driver 140 rises The stopper 142a of the second driver 140 comes into contact with the detent projection 132 of the first driver 130 when the rise of the second driver is completed. When the first driver 130 is further rotated in the same direction, the upward movement of the second driver 140 is terminated by the stopper protrusion 132 and the rotational force of the first driver 130 is transmitted to the second driver 140 so that the first driver 130 and the second driver 140 rotate integrally. Specifically, when the knob is rotated by 90 degrees in the first direction, the first driver 130 rotates by 90 degrees, and the second driver 140 rises by 1/4 of the screw leads. When the handle is further rotated by 90 degrees, the first driver 130 and the second driver 140 are integrated and rotated at the same time. The movement control protrusion 143 protruding from the outer side surface of the second driver 140 moves in correspondence with the driver rotation guide groove 321 and the driver element lift guide groove 322 of the housing 320, The range of the motion (H) and the horizontal rotation (R) is limited.

The housing 320 is a portion in which the driving unit 100 is received and specifically contacts the second driver 140 to guide the vertical movement H and the horizontal rotation R of the second driver 140 to the guide do. The driving member elevating guide groove 322 and the driving member rotation guide groove 321 engraved in a 'a' shape inside the housing 320 correspond to the motion control projection 143 of the second driver 140. When the first driver 130 moves the second driver 140 vertically up and down by the screw movement, the motion control protrusion 143 of the second driver 140 drives the housing 320 When the first driving member 130 and the second driving member 140 are integrated with each other and simultaneously move in the horizontal rotational movement R, the motion control projection 143 is driven And is moved horizontally along the rotation guide groove 321. On the other hand, at the position where the second driver 140 should complete the horizontal rotation movement R, the driver rotation stop jaw 321a is formed to clearly limit the horizontal rotation movement R of the second driver 140. [

7 is a perspective view of the coupled state of the driving unit 100 and the housing 320. The housing cover 310 bolted to the upper portion of the housing 320 is rotated by the first rotation of the handle 110, The first driver 130 does not move in the vertical direction when the second driver 140 moves up and down in the vertical direction.

8 to 13 are views showing in detail the motion state of the driving part 100 and the actuating part 200 by the parallel rotational movement R of the pull 110. In the present embodiment, No) The operation of the seat ball valve is explained in detail.

1. Segment Ball (230) Extraction-Interval (G) Creation

The handle 110 is rotated 90 degrees (Ra1) in the forward direction (clockwise direction) as shown in Fig. At this time, the state of each constitution is as follows.

The motion control protrusion 143 of the second driver 140 is seated in the lower portion of the driver's vertical guide groove 322 of the housing 320 so that the horizontal rotation of the second driver 140 is restricted, It is possible. Therefore, when the first driver 130 rotates by the handle 110, the second driver 140 that is screwed is raised.

9, the motion control projection 143 rises to the position of the driver rotation guide groove 321 and the center shaft 210 also rises upward (H1) as the second driver 140 rises, . The stopper 142a of the second driver 140 is brought into contact with the detent projection 132 of the first driver 130 and the plunger ball 121 of the spring plunger 120 is rotated 2 driver 140 in the plunger ball receiving groove 141 of the plunger ball.

At this time, the upper portion of the link rod 220 connected to the center shaft 210 and the coupling pin 223 is raised, and the link rod 220 is connected to the segment ball 230 connected to the coupling pin 224 from the lower portion. It increases in a chain. However, the segment ball 230 has an effect of pulling the opposite end of the two hinge joints, one end of which is fixed by the lower end of the fixed shaft 240 and the engagement pin 233, So that the segment ball 230 inserted into the pipe 352 is extracted from the pipe line 352. [0064] As shown in FIG.

As a result, the contact surface 231a of the segment ball 230 is spaced apart from the ball contact surface 353a of the body 350 and a gap G1 is formed therebetween, so that the segment ball 230 is rotated Friction and wear of the ball contact surface 353a and the inner side surface 353b of the body are not generated.

2. Segment ball 230 forward (clockwise) rotation - valve opening

10 shows a state after the handle 110 is rotated 90 degrees in the forward direction (Ra2). At this time, the state of each constitution is as follows.

The motion control projection 143 moves horizontally along the driver rotation guide groove 321 and limits the vertical lift H of the second driver 140 and enables only the horizontal rotation R. [ The rotational force is transmitted from the detent projection 132 of the first driver 130 to the detent jaw 142a of the second driver 140 while the first driver 130 rotates by the handle 110, The first driver 130 and the second driver 140 rotate together.

At this time, the center axis 210 connected to the second driver 140 is also subjected to the horizontal rotation movement Rb2, so that the segment ball 230 connected to the center axis 210 also simultaneously rotates the horizontal rotation movement Rc2 ).

The gap G1 is maintained between the insertion port 231b of the segment ball 230 and the inner side surface 353b of the body 350 while the segment ball 230 rotates. Therefore, the gap between the segment ball 230 and the inner side surface 353b are free from friction and abrasion.

3. Segment ball (230) Reverse (counterclockwise) rotation - Valve closing

11 is a state before the knob 110 is rotated 90 degrees in the reverse direction (Ra3). As the knob 110 is rotated in the reverse direction in the horizontal direction (Ra3), the movement control projection 143 is rotated And moves toward the driver ' s ascending / descending guide groove 322 along the guide groove 321.

12 shows the state after the knob 110 is rotated (Ra3) in the reverse direction. At this time, the state of each constitution is as follows.

The motion control projection 143 horizontally moves along the driver rotation guide groove 321 and is located at a portion where the driver member elevation guide groove 322 is located. During the horizontal movement, the vertical lift H of the second driver 140 is restricted and only the horizontal rotation R is possible. The rotational force of the first driver 130 is transmitted from the male screw portion 133 to the female screw 142 of the second driver 140 by the rotation of the first driver 130 by the handle 110, The first driver 130 and the second driver 140 are integrally rotated together by being transmitted from the plunger ball mounting groove 121 to the plunger ball mounting groove 141.

At this time, the center shaft 210 connected to the second driver 140 is also subjected to the horizontal rotation movement Rb3, so that the segment ball 230 connected to the center shaft 210 also rotates in the horizontal rotation movement Rc3. .

The gap G1 is maintained between the insertion port 231b of the first segment ball 231 and the inner side surface 353b of the body 350 while the segment ball 230 rotates, Friction and wear do not occur between the side surfaces 353b.

4. Insertion of segment ball 230 - Direct contact with body 350 (G2 = 0)

Fig. 13 shows a state in which the knob 110 is rotated in the horizontal direction (Ra4) by 90 degrees in the reverse direction. At this time, the state of each constitution is as follows.

The motion control projection 143 is moved downward along the driver's vertical guide groove 322. At this time, the horizontal rotation movement R of the second driver 140 is restricted and only the vertical descending motion H to be. That is, when the first driver 130 is rotated by the handle 110, the second driver 140 is lowered along the thread formed with the screw driver 140.

While the second driver 140 descends and the central axis 210 connected to the second driver 140 also descends downward (H4).

Although not shown in the drawing, the stop jaw 142a of the second driver 140 is separated from the stop protrusion 132 of the first driver 130 during the vertical lift operation H, and the spring plunger 120 The plunger ball 121 of the second driver 140 is also released from the plunger ball seating groove 141 of the second driver 140.

The central axis 210 causes the upper portion of the link rod 220 connected to the coupling pin 223 to descend H4 and the link rod 220 is connected to the segment ball 230) are sequentially lowered.

However, since the segment ball 230 has the lower end coupled to the fixed shaft 240 and the engagement pin 233 again, that is, the opposite end of the two hinge joints, The insertion hole 231b of the segment ball 230 is inserted into the channel 352 and the contact surface 231a comes into direct contact with the ball contact surface 353a of the body 350. [

That is, as a result of the above operation, the segment ball 230 is inserted into the channel to apply a constant close contact pressure to the ball contact surface 353a of the body 350 and maintain the zero interval (G2 = 0) It is possible to effectively block it.

14 is an exploded view and a perspective view showing a detailed configuration of another embodiment of Figs. 1 to 4. Fig.

As described above, the number of the segment balls 230 can be designed by increasing the number of one or two or more, if necessary, corresponding to the number of the channel 352. 14 is another embodiment to which one segment ball 230 is applied and is adjusted as the number of the link rods 220 according to the number of the segment balls 230. [ Also, the shape of the coupling portion of the link rod 220 and the segment ball 230 according to the number of the segment balls 230 is changed to various forms such as the connecting rod type of the automobile as well as the fork type like the embodiment of the present invention .

14 is a perspective view showing a state where the body 350 as in the embodiment of the present invention is divided into a two-piece (three-piece) or a three-piece (three-piece) The operation part 200 described above using the split body; A driving unit 100; And the body part 300 according to an embodiment of the present invention.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be obvious to those who have knowledge.

100:
110: Handle
111: Driver coupling groove
120: spring plunger
121: plunger ball
130: first driver
131: Handle coupling projection
132: detent projection
133:
134: spring plunger engaging portion
135: upper body
136: Lower body
140: second driver
141: plunger ball seat groove
142: female thread portion
142a:
143: Motion control projection
144: center shaft coupling groove
145:
200:
210: center axis
211: driver coupling projection
211a: pin coupling hole
212: link rod coupling projection
212a: a pin engagement hole
220: Link Load
221: first link load
221a:
221b: segment ball coupling portion
221c: Segment ball supporting surface
222: second link load
223:
224:
230: Segment ball
231: 1st segment ball
231a: contact surface
231b:
231c: link rod coupling projection
231d: fixed shaft coupling projection
231e: Link rod contact surface
232: second segment ball
233:
240: fixed shaft
241: Segment ball joining groove
242: Motion control projection
300:
310: housing cover
320: housing
321: Driver rotation guide groove
321a: driver rotation stop chin
322: Driver lifting guide groove
330: Grand
340: Body cover
350: Body
351: fixed shaft coupling portion
351a: Fixed shaft rotation guide groove
351b:
352: conduit
353: Interior space
353a: Ball contact surface
353b: inner side
R: Parallel rotational motion
H: vertical lift
A: The oblique lift
G: Spacing

Claims (6)

The segment ball 230,
A center axis 210 coupled to the upper end of the segment ball 230,
A link rod 220 installed between the center shaft 210 and the segment ball 230,
The vertical movement H of the center shaft 210 is transmitted to the vertical movement A of the segment ball 230 including the fixed shaft 240 installed between the body part 300 and the segment ball 230 An operating part 200 for switching;

A handle 110 for generating a horizontal rotation movement R,
A first driver 130 rotating integrally with the handle 110,
The driving unit 100 includes a second driver 140 that performs a vertical lift motion H when the first driver 130 rotates or a horizontal rotation movement R integrally with the first driver 130, ;

A housing 320 which houses the driving part 100 and guides the vertical movement H and the horizontal rotation R of the second driver 140,
And a body part (300) including a body (350) for receiving the actuating part (200) in the lower part and guiding the horizontal rotation (R) of the fixed shaft (240)

Characterized in that the segment ball (230) is in direct contact with the body (350) without a seat
Link rod segment type no seat ball valve.
The method according to claim 1,
The fixed shaft 240
And a motion control projection (242) formed on one side of the rotation surface of the fixed shaft (240)

The body 350
And a fixed shaft coupling portion 351 formed at a portion of the fixed shaft 240 in contact with the rotation surface,
The fixed shaft coupling portion 351
The fixed shaft 240 includes a fixed shaft rotation guide groove 351a formed as a transverse groove through which the motion control projection 242 passes when the fixed shaft 240 rotates integrally with the segment ball 230,

(R) of the fixed shaft (240) but limits the displacement in the vertical direction
Link rod segment type no seat ball valve.
3. The method according to claim 1 or 2,
The first driver 130
An upper body 135 coupled with the handle 110,
A lower body 136 coupled to the second driver 140,
A male screw portion 133 formed on the lower body 136,
And a detent projection 132 formed at the boundary between the upper body 135 and the lower body 136,

The second driver 140
And a female screw portion 142 formed to correspond to the male screw portion 133 of the first driver 130,
And a stopping protrusion 142a corresponding to the stopping protrusion 132 of the first driver 130 is formed at the upper end of the internal thread portion 142
Link rod segment type no seat ball valve.
3. The method according to claim 1 or 2,
The link rod (220)
An engaging pin 223 hinged to the center shaft 210 and the link rod 220,
And an engagement pin (224) for hinging the segment ball (230) and the link rod (220)
The segment ball 230
And an engaging pin (233) for hinging the fixed shaft (240) and the segment ball (230)
Link rod segment type no seat ball valve.
The method of claim 3,
The second driver 140
And a motion control protrusion 143 protruding from one side of a surface coupled to the housing 320,

The housing (320)
A driving member rotation guide groove 321 in which a driving member rotation stopping step 321a is formed as a lateral groove through which the motion control projection 143 of the horizontally rotating second driver 140 passes,
And a driving member elevating and lowering guide groove 322 which is coupled in a '' shape to the driving member rotation guide groove 321 as a longitudinal groove passing through the motion control projection 143 of the vertically elevating second driver 140 Featured
Link rod segment type no seat ball valve.
3. The method according to claim 1 or 2,
The driving unit 100
Further comprising a spring plunger (120) in the form of a cylinder coupled to the first driver (130)
The spring plunger (120)
A spring is provided in the cylinder and a plunger ball 121 is coupled to a lower portion of the spring so that a part of the plunger ball 121 protrudes outside the lower end of the upper body 135 of the first driver 130,

The second driver 140
And a plunger ball seating groove 141 formed in such a manner that the plunger ball 121 of the spring plunger 120 rotates together with the first driver 130 when the second driver 140 is lifted. To
Link rod segment type no seat ball valve.

Images