KR101228719B1

KR101228719B1 - A Dispensing Valve

Info

Publication number: KR101228719B1
Application number: KR1020100125171A
Authority: KR
Inventors: 한홍주
Original assignee: 한홍주
Priority date: 2010-12-08
Filing date: 2010-12-08
Publication date: 2013-02-01
Also published as: KR20120063972A

Abstract

The present invention relates to a fluid metering supply valve, the configuration of which is a volume chamber 10 having an internal volume chamber 12 therein, and a volume chamber cap 14 fastened and fastened to an upper portion of the volume chamber 10. And a fluid cylinder unit having a built-in volume chamber piston 24 in which the rod 22 is integrated in the inner volume chamber 12 and flowing in and out of the fluid filled in the inner volume chamber while being raised and lowered according to the supply direction of the fluid ( 20) and a spool housing installed at one side of the fluid cylinder portion 20, and having a spool 80 mounted on the upper and lower portions of the inner volume chamber 12 of the fluid cylinder portion 20 to selectively guide the inflow and outflow of fluid. 30 and a flow path extending in the longitudinal direction from the volume chamber cap 14 to allow the rod 22 to flow therein, a spiral is formed on the inner side of the flow path, and a scale ( 212 is formed with an extension cap 210 and the extension cap 210 on the inner side of the extension cap 210 An extension rod 220 extending relatively to the rod 22 and having a spiral formed on an outer surface thereof, and an adjustment bolt provided at one end of the extension rod 220 to adjust the movement of the extension rod 220. 230 and a ring is formed in the inner surface has a spiral formed on the inner surface is characterized in that it comprises a fixing part 240 movable along the extension rod 220.

Description

Fluid Dispensing Valve {A Dispensing Valve}

The present invention relates to a fluid metering supply valve, and more particularly, to a fluid metering supply valve capable of accurately adjusting and supplying various fluids such as grease and oil.

The fluid supply valve is a valve for discharging and supplying various fluids such as grease and oil in an accurate amount. An air chamber equipped with a piston for operating the spool and a piston chamber for operating the spool therein, and the spool is installed at a predetermined position to supply the fluid to the lower part of the volume chamber or to supply the fluid to the volume chamber. The fluid supply ring for supplying the upper portion, the spool packing, and the fluid supply passage and the fluid discharge passage for supplying and discharging the fluid to the volume chamber are configured.

However, the above-described prior art has the following problems.

In order to supply the fluid in a quantitative manner, the adjusting screw part is operated to view the value of the adjusting screw and to adjust the amount of fluid flowing into the internal volume chamber. However, according to the prior art, when the adjustment screw is rotated, the scale is rotated together with the adjustment screw, so that the operator has to operate while changing the position according to the scale position, thereby reducing work efficiency and work stability.

In addition, the member indicating the position of the scale is movable along the axis of the adjustment screw, there is a problem that the measurement is not accurate.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to provide a fluid metering supply valve capable of accurately measuring the amount of fluid discharged.

According to a feature of the present invention for achieving the object as described above, the configuration of the fluid metering supply valve of the present invention, the volume chamber 10 and the volume chamber 10 having an internal volume chamber 12 therein; A volume chamber cap 14 fastened and fastened to an upper portion thereof, and a volume chamber piston 24 having an integrated rod 22 in the internal volume chamber 12 is installed thereinto while moving up and down in accordance with a fluid supply direction. The fluid cylinder 20 for flowing in and out of the fluid filled in and the fluid cylinder 20 is installed on one side of the fluid cylinder 20, the fluid flow in the upper and lower inner volume chamber 12 of the fluid cylinder 20 selectively A spool housing (30) equipped with a guide spool (80), and a flow path extending in the longitudinal direction from the volume chamber cap (14), through which the rod (22) can flow, and formed with an inner surface of the flow path. Spiral is formed in, the extension cap 210 is formed with a scale 212 on the outer surface An extension rod 220 having a spiral formed on an outer surface of the extension cap 210 and extending to the rod 22 relatively longer than the extension cap 210, and one end of the extension rod 220. Is provided in, the adjustment bolt 230 to adjust the movement of the extension rod 220, and the ring portion is formed in a ring shape is formed on the inner side spiral is movable 240 along the extension rod 220 Characterized in that configured to include.

The fluid metering supply valve according to the present invention has the following effects.

The scale is always configured in a constant direction, and includes a cover that can refer to the scale regardless of the rotation of the adjustment screw, the operator can check the scale stably accurately, there is an effect that the work efficiency increases.

Figure 1 is a side cross-sectional view showing the configuration of a fluid metering supply valve according to the prior art.
Figure 2 is a side cross-sectional view showing the configuration of a fluid metering supply valve according to the present invention.
Figure 3 is a front view showing the configuration of the fluid metering supply valve according to the present invention.
4 is a plan view showing the configuration of a first guide constituting the fluid metering supply valve of FIG.

Hereinafter, a preferred embodiment of the fluid metering supply valve according to the present invention will be described in detail with reference to the drawings.

The present invention relates to a fluid metering supply valve, and as shown in FIG. 2, a volume chamber 10 having an internal volume chamber 12 therein and a volume fastened and fixed to an upper portion of the volume chamber 10. The seal cap 14 and the volume chamber piston 24 in which the rod 22 is integrated in the inner volume chamber 12 are installed to flow in and out of the fluid filled in the inner volume chamber while raising and lowering according to the supply direction of the fluid. The spool 80 is installed at one side of the fluid cylinder part 20 and the fluid cylinder part 20 to selectively induce the inflow and outflow of fluid in the upper and lower inner volume chambers 12 of the fluid cylinder part 20. It can be configured to include a spool housing 30 mounted.

First, the volumetric chamber 10 is provided in the fluid metering supply valve according to the present invention. An interior volume chamber 12 is provided inside the volume chamber body 10. The inner volume chamber 12 provides a space through which the fluid flows into the inner volume chamber 12 through the spool housing 30 which will be described below, and the piston 24 opens the inner volume chamber 12. To be slidable accordingly.

One end of the inner volume chamber 12, that is, as shown in FIG. 2, a first connection passage 12a communicating with the first passage 52 is formed at an upper end of the inner volume chamber 12. The lower end of the volume chamber 12 is formed with a second connection passage 12b in communication with the second passage 54.

The volume chamber cap 14 is provided at an upper portion of the volume chamber body 10. The volume chamber cap 14 serves to shield the internal volume chamber 12.

In addition, the fluid cylinder 20 is provided with the fluid metering supply valve of the present invention. The fluid cylinder part 20 is coupled to the piston 24 and the piston 24 installed in the inner volume chamber 12 and the rod 22 through which the volume chamber cap 14 is exposed to the outside. It is configured to include.

One side of the fluid cylinder 20 is provided with a spool housing 30. The spool housing 30 is equipped with a spool 80 that selectively injects fluid into and out of the inner volume chamber 12 of the fluid cylinder 20.

Here, the spool housing 30 may be configured in various ways for the above-described function, for example, may be configured as shown in FIG.

And, the spool housing 30, the inner passage is formed in a polygonal columnar shape, forms one end of the spool housing 30, the first housing 40 is formed with a discharge passage 42 at one end; A flow path is formed therein in the shape of a polygonal column, and a first flow path 52 and a second flow path 54 for supplying fluid to the upper and lower ends of the internal volume chamber 12 are formed, respectively. An inlet 56 for guiding fluid from the outside is formed, the second housing 50 having one end in contact with the first housing 40, and a flow path formed therein in a polygonal column shape. The third housing 60 in contact with the second housing 50, one end of which is open in a polygonal columnar shape, a flow path is formed therein, and one end of the third housing 60 is in contact with the second housing 50. The space is formed in the shape of a bar and the fourth housing 70 to which the third housing 60 is joined. A piston 82 slidable is formed along the inner space 72 of the fourth housing 70, and the first housing 40, the second housing 50, the third housing 60, and the fourth housing are formed. A spool (80) for guiding the fluid selectively through the inlet (56) to the first passage (52) and the second passage (54) while sliding through the (70); A flow path 92 is formed therein to communicate with the discharge flow path 42, the first guide 90 through which the flow path of the first housing 40 is joined, and a flow path 102 formed therein to form the first guide 90. In communication with the flow path 92 of the guide 90, a part is joined to the flow path inside the first housing 90, the remaining part is joined to the flow path inside the second housing 50, the first guide The second guide 100 having a diameter larger than 90 and the flow path 112 formed therein are in communication with the flow path 102 of the second guide 100. A portion of the second guide 100 may be formed in the groove 104, and the remaining portion of the second guide 100 may be formed in the flow path of the second housing 50. 54, a first guide bush 110 having a second connection passage 114 communicating therewith, a flow passage 102 of the second guide 100 and a flow passage 112 of the first guide bush 110. The first packing part 120 formed in a ring shape between the first packing part, the first O-ring 122 surrounding the outer circumferential surface of the first packing part 120, and a flow path 132 formed therein to form the first guide bush. A first connection channel communicating with the flow path 112 of the 110 and formed in the flow path of the second housing 50 and communicating the flow path 112 formed therein and the first flow path 52 ( The second guide bush 130 is provided with a 134, the second formed in a ring shape between the flow path 112 of the first guide bush 110 and the flow path 132 of the second guide bush 130. Packing unit 140 and The second O-ring 142 surrounding the outer circumferential surface of the second packing part 140 and a flow path formed therein to communicate with the flow path of the second guide bush, and a part of the flow path of the second housing 50 is connected to the flow path of the second housing 50. The third guide 150 is formed, and the remaining portion is joined to the flow path inside the third housing 60, and the flow path is formed therein to communicate with the flow path of the third guide 150, the third housing The fourth guide 160 to be joined to the flow path of the 60, the third packing portion 170 formed in a ring shape between the flow path of the guide bush and the flow path of the third guide, and the third packing part ( A third o-ring 172 surrounding the outer circumferential surface of the 170, a fourth packing part 180 formed in a ring shape between the flow path of the fourth guide 160 and the flow path of the third housing 60, and It may be configured to include a fourth O-ring 182 surrounding the outer peripheral surface of the fourth packing portion 180.

First, the spool housing 30 is provided with a first housing 40. As shown in FIG. 2, the first housing 40 has a polygonal columnar shape, a flow path is formed therein, forms a lower end of the spool housing 30, and a discharge flow path 42 is formed downward. .

One side of the first housing 40 is more specifically provided with a second housing 50 at the top. As shown in FIG. 2, the second housing 50 has a flow path formed therein in the shape of a polygonal column like the first housing 40.

In addition, the second housing 50 is provided with a first flow passage 52 and a second flow passage 54 for supplying a fluid to an upper end and a lower end of the inner volume chamber 12. In addition, an inlet 56 for guiding fluid from the outside into the flow path inside the second housing 50 is provided. That is, the fluid flowing through the inlet port 56 flows into the internal volume chamber 12 through the first flow path 52 or the second flow path 54 and the piston 24 of the fluid cylinder part 20. ) Powers up and down.

One side of the second housing 50 is more specifically provided with a third housing 60 in the upper portion. Similarly to the first housing 40, the third housing 60 also has a flow path formed inside the polygonal columnar shape.

In addition, a fourth housing 70 is provided outside the third housing 60. Similarly to the first housing 40, the fourth housing 70 also has an inner space 72 formed in a polygonal columnar shape, except for the first, second and third housings 40, 50 and 60. It is open.

The third housing 60 is inserted into the inner space 72, and the piston 82 of the spool 80 to be described below is slidable along the inner space 72. More specifically, the piston 82 slides along the moving space between the inner space 72 and the third housing 60, and the piston is disposed at one end and the other end of the moving space such that the piston 82 is slidable. A passage is provided through which fluid, for example, air, for allowing 82 to move can be flowed in and out.

More specifically, as shown in FIG. 2, the first air path 74 is positioned relatively upward in the fourth housing 70, and the second air path 76 is located relatively downward. to be. When air is supplied to the first air passage 74, the piston 82 of the spool 80 descends, and when air is supplied to the second air passage 76, the piston 82 of the spool 80 rises. Done.

The spool 80 penetrates the flow paths of the first housing 40, the second housing 50, and the third housing 60 and slides along the inner space 72 of the fourth housing 70. Prepared. One end of the spool 80, that is, the piston 82 is provided in the inner space 72 of the fourth housing 70, so that when the air flows in and out of the inner space 72, the spool 80 is moved.

In addition, the spool 80 serves to selectively guide the fluid flowing through the inlet 56 to the first channel 52 and the second channel 54. As shown in FIG. 2, the spool 80 may include a concave groove 84 in which the outer surface of the spool 80 is recessed. That is, while the spool 80 moves along the flow path through which the fluid moves, the concave groove 84 communicates the inlet 56 with the first passage 52, or the inlet 56 with the first outlet 52. It serves to communicate the two euros (54).

In addition, a first guide 90 is provided inside the first housing 40. The first guide 90 is formed with a flow path 92 so that the fluid guided along the flow path of the spool housing 30 can be discharged to the outside through the discharge flow path 42.

The flow path 92 is configured to communicate with the flow path 102 of the second guide 100, as shown in FIG. 2, between the first guide 90 and the inner surface of the first housing 40. It is preferable to form a long groove in the longitudinal direction. This is because when the long groove is formed between the spool 80 and the first guide 90, the long groove is worn between the inner wall and the first guide 90 by the movement of the spool 80 is large This is to prevent this in advance.

As shown in FIG. 4, the flow path 92 may be configured in plural, and a cross section of the flow path 92 may be configured in various shapes.

The second guide 100 is provided on one side, that is, the upper portion of the first guide 90. As shown in FIG. 2, the second guide 100 has a flow path 102 formed therein to communicate with the flow path 92 of the first guide 90, and a part of the second guide 100 is located in the first housing 40. And the remaining part are molded into the second housing 50.

In particular, the diameter of the second guide 100 is preferably formed relatively larger than the diameter of the first guide 90. This is to facilitate the separation when the first guide 90 and the second guide 100 are separated after the first housing 40 and the second housing 50 are separated.

The flow path 102 of the second guide 100 preferably has a larger cross-sectional area as it goes downward, that is, toward the flow path 92 of the first guide 90. This is to allow the fluid through the flow path 102 of the second guide 100 to be guided safely to the flow path 92 of the first guide 90.

In addition, a first guide bush 110 is provided inside the second housing 50. As shown in FIG. 2, the first guide bush 110 has a flow path 112 formed therein, and the flow path 112 communicates with the flow path 102 of the second guide 100.

A portion of the body of the first guide bush 110 is formed in the groove portion 104 of the second guide 100, the remaining portion is formed in the flow path of the second housing 50. The first guide bush 110 is provided with a second connection passage 114 connecting the passage 112 formed therein and the second passage 54.

The first packing part 120 is provided between the flow path 102 of the second guide 100 and the flow path 112 of the first guide bush 110. The first packing part 120 is formed of a ring-shaped rubber material, as shown in FIG. 2, the flow path 102 of the second guide 100 and the flow path 112 of the first guide bush 110. Do not leak fluid flowing between the wires. Here, the first fixing groove 106 may be further provided in the second guide 100 to fix the first packing part 120.

In addition, a first O-ring 122 is provided at the edge of the first packing part 120. The first O-ring 122 is provided at an edge of the first packing part 120 to elastically support the first packing part 120 toward the spool 80 so as to be in close contact with the spool 80. Do it. Of course, the first O-ring 122 may also be inserted into the first fixing groove 106.

In addition, a second guide bush 130 is provided at one side, that is, the upper portion of the first guide bush 110. As shown in FIG. 2, the second guide bush 130 has a flow path 132 formed therein, and the flow path 132 communicates with the flow path 112 of the first guide bush 110.

The second guide bush 130 is joined to the flow path of the second housing 50. The second guide bush 130 is provided with a first connection passage 134 connecting the passage 132 formed therein and the first passage 52.

The second packing part 140 is provided between the flow path 112 of the first guide bush 110 and the flow path 132 of the second guide bush 130. The second packing portion 140 is also formed of a ring-like rubber material similar to the first packing portion 120, as shown in Figure 2, the flow path 112 and the first guide bush 110 of the The fluid flowing between the flow paths 132 of the second guide bush 130 is prevented from leaking.

In addition, a second O-ring 142 is provided at the edge of the second packing part 140. The second O-ring 142 is provided at the edge of the second packing portion 140, the elastic support in the direction of the spool 80 so that the second packing portion 140 is in close contact with the spool 80 Do it.

In addition, a third guide 150 is provided on one side, that is, the upper portion of the second guide bush 130. The third guide 150 has a flow path formed therein to communicate with the flow path 132 of the second guide bush 130.

As shown in FIG. 2, the third guide 150 is configured such that a part of the third guide 150 is combined with the flow path of the second housing 50, and the other part of the third guide 150 is combined with the flow path inside the third housing 60.

A third packing part 170 is provided between the flow path of the second guide bush 130 and the flow path of the third guide 150. The third packing portion 170 is also formed of a ring-like rubber material similar to the first packing portion 120, as shown in Figure 2, the flow path of the third guide 150 and the second guide bush The fluid flowing between the flow paths of 130 is prevented from leaking.

In addition, a third O-ring 172 is provided at the edge of the third packing part 170. The third O-ring 172 is provided at the edge of the third packing portion 170, the elastic support in the direction of the spool 80 so that the third packing portion 170 is in close contact with the spool 80 Do it.

A recess groove 152 may be provided on a surface of the third guide 150 that contacts the second guide bush 130. The third packing part 170 and the third O-ring 172 may be inserted into the concave groove 152.

In addition, a washer 174 may be further provided between the third guide 150 and the second guide bush 130. As shown in FIG. 2, the washer 174 has a flow path formed therein, and communicates between the flow path of the third guide 150 and the flow path of the second guide bush 130.

In addition, the washer 174 may be formed to the same size as the bottom surface of the third guide 150. This is to prevent the second guide bush 130 from damaging the third packing portion 170 and the third O-ring 172 by the pressure of the fluid.

The other end of the third guide 150 is provided with a bushing groove 154 through which the spool 80 is recessed along an edge, as shown in FIG. 2. A bushing 156 is inserted into the bushing groove 154. The bushing 156 serves to guide the spool 80 to move safely along the flow path without damage.

In other words, when the third guide 150 is made of a metal material, the bushing 156 is made of a synthetic resin material to prevent damage to the outer surface of the spool 80, and By making the inner diameter the same as the outer diameter of the spool 80 to be in close contact with the spool 80, the spool 80 can be prevented from flowing.

In addition, a fourth guide 160 is provided on one side, that is, the upper portion of the third guide 150. The fourth guide 160 has a flow path formed therein and communicates with the flow path of the third guide 150. As shown in FIG. 2, the fourth guide 160 is configured to be combined with a flow path of the third housing 60.

In addition, a fourth packing unit 180 is provided between the flow path of the fourth guide 160 and the flow path of the third housing 60. Similarly to the first packing part 120, the fourth packing part 180 is formed of a ring-shaped rubber material, and as shown in FIG. 2, the flow path of the fourth guide 160 and the third housing ( Do not allow fluid to leak between the flow paths of 60).

In addition, a fourth O-ring 182 is provided at the edge of the fourth packing unit 180. The fourth O-ring 182 is provided at the edge of the fourth packing portion 180, and elastically supports in the direction of the spool 80 so that the fourth packing portion 180 is in close contact with the spool 80. Do it.

On the other hand, the fluid metering supply valve of the present invention is provided with a measuring unit 200 for measuring the amount of fluid flowing into the internal volume chamber.

2 and 3, the measuring unit 200 extends in the longitudinal direction from the volume chamber cap 14 and has a flow path through which the rod 22 flows, and the flow path of the flow path An extension cap 210 having a spiral formed on the inner side and a scale 212 formed on the outer side, and the rod 22 on the inner side of the extension cap 210 relatively longer than the extension cap 210. Extension rod 220 is extended to form a spiral on the outer surface, and provided on one end of the extension rod 220, the adjustment bolt 230 for adjusting the movement of the extension rod 220, and formed in a ring shape A spiral is formed on the inner surface thereof and may include a fixing part 240 that is movable along the extension rod 220.

First, the measuring cap 200 is provided with an extension cap 210. As shown in FIGS. 2 and 3, the extension cap 210 extends in the longitudinal direction from the volume chamber cap 14 and has a flow path through which the rod 22 can flow. A spiral is formed on the inner side of the flow path, and a scale 212 is formed on the outer side.

Then, an extension rod 220 is provided inside the extension cap 210. The extension rod 220 is formed relatively longer than the extension cap 210 is exposed to the outside of the extension cap 210 and a spiral is formed on the outer surface. That is, the spiral of the extension rod 220 is configured to be movable along the spiral of the extension cap 210.

An adjustment bolt 230 is provided at one end of the extension rod 220. The adjustment bolt 230 is configured to be integrally rotatable with the extension rod 220, it is possible to adjust the movement of the extension rod 220 while rotating the adjustment bolt 230.

In addition, a ring-shaped fixing part 240 is provided on the extension rod 220. As shown in FIGS. 2 and 3, the fixing part 240 has a spiral formed on an inner side thereof, and is configured to be movable along the extension rod 220. That is, the fixing part 240 moves along the extension rod 220, and serves to fix the extension rod 220 while contacting the extension cap 210.

In addition, a cover part 250 may be further provided on an outer surface of the extension rod 220. The cover part 250 is formed in a cylindrical shape, as shown in Figures 2 and 3, is configured to be rotatable outside the extension rod 220.

In addition, the inner space 252 of the cover portion 250 is formed relatively larger than the outer diameter of the extension cap 210 so that the cover portion 250 is movable along the outer surface of the extension cap 210. It is composed. While the cover part 250 moves along the outer surface of the extension cap 210, the cover portion 250 covers the scale 212 formed on the outer surface of the extension cap 210 to fill the internal volume chamber 12. Make the capacity known from outside.

In addition, a guide groove 254 is formed on the outer surface of the cover part 250. The guide groove 254 has a rectangular groove in the longitudinal direction of the cover portion 250, the fixing protrusion 242 protruding at one end of the fixing portion 240 is inserted into the guide groove 254. When the cover part 250 is rotated, the fixing part 240 may be moved.

In particular, the fixing protrusion 242 may be integrally formed with the fixing part 240. In addition, the coupling groove 244 may be formed in the fixing part 240, and the fixing protrusion 242 may be separately formed in a bolt shape. This is to simplify the assembly of the fixing part 240, the fixing protrusion 242 and the cover 250.

In addition, a bearing 256 may be further provided between the cover part 250 and the shaft of the adjustment bolt 230. This is to prevent the rotation between the cover portion 250 and the adjustment bolt 230 does not interfere with each other.

Hereinafter, the operation of the fluid metering supply valve according to the present invention having the configuration as described above in detail.

First, when the fluid is to be injected into the internal volume chamber 12, when the air pump (not shown) is operated by operating the control unit (not shown) of the fluid metering supply valve according to the present invention, the first air flow path 76 Air is introduced into the internal space 72 through the.

At this time, as the piston 82 is raised, the spool 80 is also raised. When the position of the concave groove 84 of the spool 80 is located as shown in FIG. 2, the fluid flowing through the inlet port 56 flows through the flow path 132 and the second guide bush 130. After passing through the flow path 112 of the first guide bush 110, the second flow path 114 flows into the second flow path 54.

The fluid introduced into the second flow passage 54 flows down the internal volume chamber 12 through the second connection flow passage 12b and raises the piston 24 of the fluid cylinder portion 20.

In this case, when the amount of fluid flowing into the inner volume chamber 12 is to be adjusted, the inner volume chamber 12 is operated while raising and lowering the piston 24 of the fluid cylinder unit 20 by operating the adjusting bolt 230. Adjust the space of).

On the other hand, if you want to accurately adjust the amount of fluid flowing into the inner volume chamber 12, as shown in Figure 3 by operating the adjusting bolt 230, one end and the scale 212 of the cover 250 When the part where) meets the desired value, the cover part 250 is rotated.

Then, as the cover part 250 rotates, the fixing part 240 also rotates together by the fixing protrusion 242 of the fixing part 240 engaged with the guide groove 254 of the cover part 250. do.

As the fixing part 240 rotates and is in close contact with the extension cap 210, the fixing part 240 is fixed and the cover part 250 does not flow, so that the operator can read the scale stably. do.

When the fluid in the inner volume chamber 12 is to be discharged to the outside, the air pump is driven by operating the controller to supply air to the first air passage 74.

Then, the piston 82 of the spool 80 is lowered, and in the drawing as shown in FIG. 2, the spool 80 is positioned at the position of the dotted line. That is, the recess groove 84 of the spool 80 is located in the first packing part 120.

In this case, when the piston 24 of the fluid cylinder 20 is lowered by operating the adjusting bolt 230, the fluid in the internal volume chamber 12 passes through the second connection channel 12b and the second channel 54. You are guided to.

The fluid guided to the second flow passage 54 is guided to the flow passage 112 of the second guide passage 114 and the first guide bush 110. In addition, the fluid guided to the flow path 112 of the first guide bush 110 passes through the flow path 102 of the second guide 100, and then the flow path 92 and the discharge flow path of the first guide 90 ( Through 42).

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

10: volumetric chamber 12: internal volume chamber
14: volume chamber cap 20: fluid cylinder portion
22: rod 24: piston
30: spool housing 40: first housing
42: discharge flow path 50: second housing
52: first euro 54: second euro
56: inlet 60: third housing
70: fourth housing 72: interior space
80: spool 82: piston
90: first guide 92: euro
100: second guide 102: euro
104: groove 110: first guide bush
112: euro 120: first packing part
122: first O-ring 130: second guide bush
132: Euro 134: first connection euro
140: second packing portion 142: second O-ring
150: third guide 152: groove groove
160: fourth guide 170: the third packing portion
172: third O-ring 180: fourth packing part
182: fourth O-ring 200: measurement unit
210: extension cap 220: extension rod
230: adjustment bolt 240: fixed portion
250: cover part

Claims

A volume chamber body 10 having an interior volume chamber 12 therein;
A volume chamber cap 14 fastened and fixed to an upper portion of the volume chamber body 10;
The volume cylinder piston 24 having the rod 22 integrated therein is installed in the inner volume chamber 12 so that the fluid filled in the inner volume chamber can flow in and out while moving up and down in accordance with the supply direction of the fluid. Wow;
A spool housing (30) installed at one side of the fluid cylinder part (20) and having a spool (80) selectively inducing fluid flow in and out of upper and lower inner volume chambers (12) of the fluid cylinder part (20);
A flow path extending in the longitudinal direction from the volume chamber cap 14 to allow the rod 22 to flow therein is formed, a spiral is formed on the inner side of the flow path, and a scale 212 is formed on the outer side. Extension cap 210;
An extension rod 220 extending into the rod 22 relatively longer than the extension cap 210 inside the extension cap 210 to form a spiral on an outer surface thereof;
An adjustment bolt 230 provided at one end of the extension rod 220 to adjust the movement of the extension rod 220; And,
Is formed in a ring shape is formed on the inner side helix is movable 240 along the extension rod 220;
The spool housing 30,
A first housing (40) having an inner flow path formed in a polygonal column shape, forming one end of the spool housing (30), and having a discharge flow path (42) formed at one end thereof;
A flow path is formed inside the polygonal columnar shape, and a first flow path 52 and a second flow path 54 for supplying a fluid are respectively formed at upper and lower ends of the internal volume chamber 12, and the flow path is outside. An inlet 56 for guiding the fluid to flow therethrough, the second housing 50 having one end contacting the first housing 40;
A third housing 60 in which a flow path is formed inside the polygonal columnar shape, one end of which is in contact with the second housing 50;
The fourth housing 70 in which one end is opened in a polygonal columnar shape, a flow path is formed therein, one end is in contact with the second housing 50, and an inner space is joined to the third housing 60. ;
It is formed in a bar shape, one end is formed with a piston 82 which is slidable along the inner space 72 of the fourth housing 70, the first housing 40, the second housing 50, the third Sliding through the housing 60 and the fourth housing 70, the fluid flowing through the inlet 56 is selectively guided to the first flow path 52 and the second flow path 54. A spool 80;
A first guide 90 in which a flow path 92 is formed to communicate with the discharge flow path 42, and a flow path of the first housing 40 is joined;
A flow path 102 is formed therein to communicate with the flow path 92 of the first guide 90, a part of which is joined to the flow path inside the first housing 90, and the remaining part of the second housing 50. A second guide (100) formed in the flow path inside and formed with a diameter larger than that of the first guide (90);
A flow path 112 is formed therein so as to communicate with the flow path 102 of the second guide 100, a part of which is joined to the groove portion 104 of the second guide 100, and the remaining part is the second housing. A first guide bush (110) formed in the flow path of (50) and having a second connection passage (114) communicating with the passage (112) formed therein and the second passage (54);
A first packing part 120 formed in a ring shape between the flow path 102 of the second guide 100 and the flow path 112 of the first guide bush 110;
A first O-ring 122 surrounding an outer circumferential surface of the first packing part 120;
A flow path 132 is formed therein so as to communicate with the flow path 112 of the first guide bush 110, is joined to the flow path of the second housing 50, and the flow path 112 formed therein and the A second guide bush 130 having a first connection passage 134 communicating with the first passage 52;
A second packing part 140 formed in a ring shape between the flow path 112 of the first guide bush 110 and the flow path 132 of the second guide bush 130;
A second O-ring 142 surrounding the outer circumferential surface of the second packing part 140;
A third flow path formed therein to communicate with the flow path of the second guide bush, a part of which is combined with the flow path of the second housing 50, and a remaining part of the flow path of the third housing 60. Guide 150;
A fourth guide 160 formed therein to communicate with the flow path of the third guide 150 and to be combined with the flow path of the third housing 60;
A third packing part 170 formed in a ring shape between the flow path of the guide bush and the flow path of the third guide;
A third O-ring 172 surrounding the outer circumferential surface of the third packing part 170;
A fourth packing part 180 formed in a ring shape between the flow path of the fourth guide 160 and the flow path of the third housing 60; And,
And a fourth O-ring 182 surrounding the outer circumferential surface of the fourth packing unit 180.
The flow path (92) is a fluid metered supply valve, characterized in that formed between the first guide (90) and the first housing (40).

The method of claim 1,
Is formed in a cylindrical shape rotatably provided on the outer surface of the extension rod 220 on the outside of the extension rod 220, the inner space 252 is formed to be relatively larger than the outer diameter of the extension cap 210 A cover part 250;
A guide groove 254 having a rectangular groove formed along the longitudinal direction of the cover portion 250 on an outer surface of the cover portion 250; And,
And a fixed protrusion (242) protruding from one end of the fixing part (240) and penetrating through the groove to be exposed to the outside.

The method of claim 2,
Wherein,
One end is inserted into the coupling groove formed in the fixing portion and the other end is a fluid metered supply valve, characterized in that it comprises a projection exposed to the outside of the guide groove.

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