A Control Block Assembly

Abstract

The present invention relates to a control block assembly, the configuration comprising: a body portion formed as a block; a first fluid passage formed penetrating the interior of the body portion, having a first inlet portion provided at one end and a first outlet portion provided at the other end; a second fluid passage formed penetrating the interior of the body portion, having a second inlet portion provided at one end and a second outlet portion provided at the other end; a first control portion for controlling the flow of fluid moving along the first fluid passage; a second control portion for controlling the flow of fluid moving along the second fluid passage; a first bypass fluid passage provided on one side of the first fluid passage, having one end connected to the first outlet portion of the first fluid passage and the other end connected to the first inlet portion of the first fluid passage; and a second bypass fluid passage provided on one side of the second fluid passage, having one end connected to the second outlet portion of the second fluid passage and the other end connected to the first The apparatus comprises a second bypass passage connected to a second inlet of the second Euro, a first check valve section configured to allow the fluid to selectively move from the first outlet to the first inlet in the first bypass passage, and a second check valve section configured to allow the fluid to selectively move from the second outlet to the second inlet in the second bypass passage, wherein the first control section is formed in a bar shape and is characterized by having a tapered cross-section that narrows toward the tip.

Description

Technology Field

[0001] The present invention relates to a control block assembly, and more specifically, to a control block assembly that can be simply assembled and disassembled. Background Technology

[0002] Generally, an actuator refers to a prime mover operated by electricity, hydraulics, compressed air, etc., and typically refers to a device that performs mechanical operation using fluid energy (operating energy). Such actuators are broadly classified into pneumatic, hydraulic, and electric types, and are primarily used in micro-displacement elements such as electronic pumps or valves in mechanical devices.

[0003] Here, the actuator used to drive pumps or valves controls the pump or valve by converting the movement of a piston into rotational or linear motion, utilizing a pressure-actuated piston rod to open or close the valve. Furthermore, the actuator is configured to effectively convert the movement of the piston into rotational or linear motion in order to control the pump or valve.

[0004] As described above, the actuator that generally provides driving force to the valve drives the piston according to the pressure resulting from the supply of fluid connected to the outside. In other words, the valve operates in conjunction with the driving of the piston based on the pressure of the fluid supplied to the actuator.

[0005] However, conventional technology had the following problems.

[0006] There was a problem in that disassembly and assembly were inconvenient when the sealing members in the fluid-flowing parts of the block wore out due to the complex internal structure of the control block assembly. Prior art literature

[0007] Published Patent No. 10-2018-0045248 The problem to be solved

[0008] To solve the aforementioned problems, the objective of the present invention is to provide a control block assembly in which consumables inside the control block can be easily separated and replaced. means of solving the problem

[0009] For achieving the aforementioned purpose, the control block assembly of the present invention comprises: a body portion formed as a block; a first fluid passage formed penetrating the interior of the body portion, having a first inlet portion provided at one end and a first outlet portion provided at the other end; a second fluid passage formed penetrating the interior of the body portion, having a second inlet portion provided at one end and a second outlet portion provided at the other end; a first control portion for controlling the flow of fluid moving along the first fluid passage; a second control portion for controlling the flow of fluid moving along the second fluid passage; a first bypass fluid passage provided on one side of the first fluid passage, having one end connected to the first outlet portion of the first fluid passage and the other end connected to the first inlet portion of the first fluid passage; and a second bypass fluid passage provided on one side of the second fluid passage, having one end connected to the second outlet portion of the second fluid passage and the other end connected to the first The apparatus comprises a second bypass passage connected to a second inlet of the second Euro, a first check valve section configured to allow the fluid to selectively move from the first outlet to the first inlet in the first bypass passage, and a second check valve section configured to allow the fluid to selectively move from the second outlet to the second inlet in the second bypass passage, wherein the first control section is formed in a bar shape and is characterized by having a tapered cross-section that narrows toward the tip.

[0010] The first adjustment part is characterized by comprising: a first adjustment piston formed in a cylindrical shape and inserted into a first adjustment hole of the body part, with its tip formed to engage with a first flow path; a first seat in a cylindrical shape on the outer circumference of the first flow path at the tip of the first adjustment piston; a first connector formed in a cylindrical shape, with the first adjustment piston in contact inside and the first adjustment hole in contact outside; and a first adjustment screw formed in a cylindrical shape, with its tip connected to the first adjustment piston and having a screw thread formed on its outer circumference to move along the screw thread formed on the inner surface of the first connector.

[0011] The tip of the first adjusting piston is characterized by being formed to be tapered so that the diameter decreases as it approaches the tip.

[0012] The first guide groove having a screw thread is formed on the outer surface of the tip of the first adjusting piston, and the first guide groove is characterized by being formed deeper as it extends toward the tip. Effects of the invention

[0013] The control block assembly of the present invention has the following effects.

[0014] By connecting the check valve section with the check valve hole penetrating the body section and two flow paths, and by making the inner diameter of the check valve hole increase from the center toward the edge, the connection and separation of the components constituting the check valve section are facilitated, which has the advantage of simplifying overall assembly and disassembly.

[0015] The adjustment part is designed so that the inner diameter increases toward the edge from the center of the adjustment hole penetrating the body part, making it easy to fasten and separate the parts constituting the adjustment part, which has the advantage of simplifying overall assembly and disassembly. Brief explanation of the drawing

[0016] FIG. 1 is a plan view showing the structure of a preferred embodiment of a control block assembly according to the present invention. FIG. 2 is a side view showing the structure of a preferred embodiment of a control block assembly according to the present invention. FIG. 3 is a cross-sectional view showing the structure of a check valve part constituting a preferred embodiment of a control block assembly according to the present invention. FIG. 4 is a circuit diagram showing the operation process of a preferred embodiment of a control block assembly according to the present invention. FIG. 5 is a side view showing the configuration of a control piston constituting the control part of FIG. 2 of the present invention. Specific details for implementing the invention

[0017] A preferred embodiment of a control block assembly for a valve according to the present invention will be described in detail below with reference to the attached drawings.

[0018] As shown in FIG. 1, a control block assembly for a valve according to the present invention comprises a body portion (10) formed as a block, a first fluid passage (20) formed penetrating the interior of the body portion (10) and having a first inlet portion (22) provided at one end and a first outlet (24) provided at the other end, a second fluid passage (30) formed penetrating the interior of the body portion (10) and having a second inlet portion (32) provided at one end and a second outlet (34) provided at the other end, a first control portion (40) for controlling the flow of fluid moving along the first fluid passage (20), a second control portion (50) for controlling the flow of fluid moving along the second fluid passage (30), and a first control portion (50) provided on one side of the first fluid passage (20), wherein one end is the first outlet (24) of the first fluid passage (20) and It may comprise a first bypass passage (60) connected, with the other end connected to the first inlet (22) of the first passage (20); a second bypass passage (70) provided on one side of the second passage (30), with one end connected to the second outlet (34) of the second passage (30) and the other end connected to the second inlet (32) of the second passage (30); a first check valve section (80) provided to allow the fluid to selectively move from the first outlet (24) to the first inlet (22) in the first bypass passage (60); and a second check valve section (90) provided to allow the fluid to selectively move from the second outlet (34) to the second inlet (32) in the second bypass passage (70). there is .

[0019] First, a body portion (10) is provided in the control block assembly for a valve according to the present invention. The body portion (10) forms the skeleton of the control block assembly according to the present invention and may be formed as a cuboid. More preferably, the body portion (10) may be formed as a rectangular prism.

[0020] A first fluid passage (20) is provided in the body portion (10). The first fluid passage (20) penetrates the interior of the body portion (10) and serves to connect one end to the other end. The first fluid passage (20) is connected to a fluid supply source at one end and to an actuator at the other end to guide fluid moving from the fluid supply source to the actuator.

[0021] The first Euro (20) is provided with a first inlet (22) at one end and a first outlet (24) at the other end with respect to the body part (10). A fluid supply source may be connected to the first inlet (22), and an actuator may be connected to the first outlet (24).

[0022] And, a second fluid path (30) is provided in the body part (10). The second fluid path (30) penetrates the interior of the body part (10) and serves to connect one end to the other end. The second fluid path (30) is connected to a fluid supply source at one end and to an actuator at the other end to guide the fluid moving from the fluid supply source to the actuator.

[0023] The second Euro (30) is provided with a second inlet (32) at one end and a second outlet (34) at the other end with respect to the body part (10). A fluid supply source may be connected to the second inlet (32), and an actuator may be connected to the second outlet (34).

[0024] A first control unit (40) is provided in the first Euro (20). The first control unit (40) serves to control the flow of fluid moving along the first Euro (20). That is, the first control unit (40) can control the fluid moving along the first Euro (20) or control the amount of fluid.

[0025] The first adjustment unit (40) above can be configured in various ways for the above-described function, and in the present invention, it can be configured as follows.

[0026] The first adjustment part (40) may comprise a first adjustment piston (42) formed in a cylindrical shape and inserted into a first adjustment hole (41) of the body part, with its tip formed to engage with a first flow path (20); a first seat (43) formed in a cylindrical shape on the outer surface of the first flow path (20) at the tip of the first adjustment piston (42); a first connector (44) formed in a cylindrical shape, with the first adjustment piston (42) in contact inside and the first adjustment hole (41) in contact outside; and a first adjustment screw (45) formed in a cylindrical shape, with its tip connected to the first adjustment piston (42), and having a screw thread formed on its outer surface to move along the screw thread formed on the inner surface of the first connector (44).

[0027] First, a first adjustment piston (42) is provided in the first adjustment part (40). The first adjustment piston (42) is inserted into and secured in a first adjustment hole (41) provided inside the body part (10).

[0028] The first adjustment hole (41) is formed to communicate with the first euro (20), so that the first adjustment piston (42) rotates and slides to adjust the degree of opening of the first euro (20).

[0029] The first adjustment piston (42) is formed in a cylindrical shape and is fastened to engage with the first adjustment hole (41). The first adjustment piston (42) is formed such that its cross-section becomes smaller toward the tip, and the tip is formed to be the same as the inner diameter of the first flow path (20) so as to block the first flow path (20).

[0030] An O-ring may be further provided in the center of the first adjustment piston (42). The O-ring is provided in the center of the first adjustment piston (42) and serves to block fluid discharge by being in close contact with the inner wall of the first adjustment hole (41) or, more preferably, the inner wall of the first connector (44) to be described below.

[0031] The tip of the first regulating piston (42) can be formed to spread out. That is, the tip of the first regulating piston (42) is formed so that its diameter decreases toward the tip, thereby regulating the amount of fluid moving along the first flow path (20).

[0032] The tip of the first control piston (42) is formed in a cylindrical shape, and a first guide groove (42a) may be further provided on the outer surface. This controls the amount of fluid moving along the first guide groove (42a) and along the first flow path (20).

[0033] The first guide groove (42a) is formed in a ring shape, and as shown in FIG. 5, the depth of the groove can be made to increase toward the tip. This is to precisely control the amount of fluid moving along the first guide groove (42a) in the first flow path (20).

[0034] The first adjustment part (40) is provided with a first seat (43). The first seat (43) is located on the outer surface of the first adjustment piston (42) and is located at the part where the first flow path (20) and the first adjustment hole (41) are connected.

[0035] The first sheet (43) is positioned on a stepped surface where the diameter widens from the first Euro (20) to the first adjustment hole (41), and is formed in a cylindrical shape. The interior is formed so that the tip of the first adjustment piston (42) passes through it.

[0036] An O-ring may be further provided between the first sheet (43) and the stepped surface. The O-ring serves to block fluid from flowing from the first Euro (20) into the first control hole (41).

[0037] A first connector (44) is further provided on the outer side of the first adjustment piston (42). The first connector (44) is formed in a cylindrical shape so that the first adjustment piston (42) is in contact with the inside, and the first adjustment hole (41) is in contact with the outside.

[0038] And, the first connector (44) has a screw thread formed on its outer surface so as to be fixed to the body part (10), and a screw thread is formed on the inner surface of the first adjustment hole (41) so that the first connector (44) is fixed to the first adjustment hole (41).

[0039] A first flange (44a) is provided at one end of the first connector (44). The first flange (44a) is in close contact with the outer wall of the body part (10) so that the first connector (44) is securely fixed to the outer wall of the body part (10).

[0040] An O-ring may be further provided between the first flange (44a) and the body part (10). The O-ring serves to block fluid from leaking out through the first connector (44) and the first adjustment hole (41).

[0041] A first adjustment screw (45) is provided at the rear end of the first adjustment piston (42). The first adjustment screw (45) is formed in a cylindrical shape, its front end is connected to the first adjustment piston (42), and a screw thread is formed on its outer surface so that it moves along the screw thread formed on the inner surface of the first connector (44).

[0042] That is, as the first adjustment screw (45) rotates and the first adjustment piston (42) slides, the degree to which the first Euro (20) is closed is adjusted.

[0043] And, a second control unit (50) is provided in the second Euro (30). The second control unit (50) serves to control the flow of fluid moving along the second Euro (30). That is, the second control unit (50) can control the fluid moving along the second Euro (30) or control the amount of fluid.

[0044] The above-mentioned second control unit (50) can be configured in various ways for the above-mentioned function, and in the present invention, it can be configured as follows.

[0045] The second adjustment part (50) may comprise a second adjustment piston (52) formed in a cylindrical shape and inserted into the second adjustment hole (51) of the body part, with its tip formed to engage with the second flow path (30); a second seat (53) formed in a cylindrical shape on the outer surface of the second flow path (30) at the tip of the second adjustment piston (52); a second connector (54) formed in a cylindrical shape, with the second adjustment piston (52) in contact inside and the second adjustment hole (51) in contact outside; and a second adjustment screw (55) formed in a cylindrical shape, with its tip connected to the second adjustment piston (52), and having a screw thread formed on its outer surface to move along the screw thread formed on the inner surface of the second connector (54).

[0046] First, a second adjustment piston (52) is provided in the second adjustment part (50). The second adjustment piston (52) is inserted into and secured in a second adjustment hole (51) provided inside the body part (10).

[0047] The second adjustment hole (51) is formed to communicate with the second Euro (30), so that the second adjustment piston (52) rotates and slides to adjust the degree of opening of the second Euro (30).

[0048] The second adjustment piston (52) is formed in a cylindrical shape and is fastened to engage with the second adjustment hole (51). The second adjustment piston (52) is formed such that its cross-section becomes smaller toward the tip, and the tip is formed to be the same as the inner diameter of the second flow path (30) so as to block the second flow path (30).

[0049] An O-ring may be further provided in the center of the second adjustment piston (52). The O-ring is provided in the center of the second adjustment piston (52) and serves to block fluid discharge by being in close contact with the inner wall of the second adjustment hole (51) or, more preferably, the inner wall of the second connector (54) to be described below.

[0050] The tip of the second regulating piston (52) can be formed to spread out. That is, the tip of the second regulating piston (52) is formed so that its diameter decreases toward the tip, thereby regulating the amount of fluid moving along the second flow path (30).

[0051] The tip of the second control piston (52) is formed in a cylindrical shape, and a second guide groove (52a) may be further provided on the outer surface. This controls the amount of fluid moving along the second guide groove (52a) and along the second flow path (30).

[0052] The second guide groove (52a) is formed in a ring shape, and as shown in FIG. 5, the depth of the groove can be made to increase toward the tip. This is to precisely control the amount of fluid moving along the second guide groove (52a) in the second path (30).

[0053] The second adjustment part (50) is provided with a second seat (53). The second seat (53) is located on the outer surface of the second adjustment piston (52) and is located at the part where the second euro (30) and the second adjustment hole (51) are connected.

[0054] The second sheet (53) is located on a stepped surface where the diameter widens from the second Euro (30) to the second adjustment hole (51), and is formed in a cylindrical shape. The interior is formed so that the tip of the second adjustment piston (52) passes through it.

[0055] An O-ring may be further provided between the second sheet (53) and the stepped surface. The O-ring serves to block fluid from flowing from the second Euro (30) into the second control hole (51).

[0056] A second connector (54) is further provided on the outer side of the second adjustment piston (52). The second connector (54) is formed in a cylindrical shape so that the second adjustment piston (52) is in contact with the inside, and the second adjustment hole (51) is in contact with the outside.

[0057] And, the second connector (54) has a screw thread formed on its outer surface so as to be fixed to the body part (10), and a screw thread formed on the inner surface of the second adjustment hole (51) so that the second connector (54) is fixed to the second adjustment hole (51).

[0058] A second flange (54a) is provided at one end of the second connector (54). The second flange (54a) is in close contact with the outer wall of the body part (10) so that the second connector (54) is securely fixed to the outer wall of the body part (10).

[0059] An O-ring may be further provided between the second flange (54a) and the body part (10). The O-ring serves to block fluid from leaking out through the space between the second connector (54) and the second adjustment hole (51).

[0060] A second adjustment screw (55) is provided at the rear end of the second adjustment piston (52). The second adjustment screw (55) is formed in a cylindrical shape, its front end is connected to the second adjustment piston (52), and a screw thread is formed on its outer surface so that it moves along the screw thread formed on the inner surface of the second connector (54).

[0061] That is, as the second adjustment screw (55) rotates and the second adjustment piston (52) slides, the degree to which the second Euro (30) is closed is adjusted.

[0063] Next, a method for connecting and disconnecting the first control part (40) and the second control part (50) of the control block assembly of the present invention will be explained.

[0064] First, to explain the fastening process, the first seat (43) is inserted into the tip of the first adjusting piston (42), and an O-ring is inserted into the front of the first seat (43) and inserted into the first adjusting hole (41). At this time, the O-ring is fastened to the center of the first adjusting piston (42).

[0065] Then, the first adjustment screw (45) is inserted into the first connector (44), and the first connector (44) is inserted into the first adjustment hole (41) to secure it. At this time, an O-ring is inserted into the front surface of the first flange (44a) of the first connector (44) to secure it. Then, the first adjustment part (40) is secured to the body part (10).

[0066] And, to explain the separation process, the first connector (44) is rotated to separate it from the first adjustment hole (41). Then, when the first adjustment piston (42) and the first seat (43) inside are separated and removed from the first adjustment hole (41), the first adjustment part (41) is completely removed from the body part (10).

[0067] And, the second adjustment part (50) is also connected and disconnected in the same process as the second adjustment part (50).

[0068] Meanwhile, a first bypass channel (60) is provided on one side of the first channel (20). The first bypass channel (60) is provided on one side of the first channel (20), and one end is connected to the first outlet (24) of the first channel (20), and the other end is connected to the first inlet (22) of the first channel (20).

[0069] That is, when the fluid moving along the first path (20) is supplied to the actuator and the amount or pressure of the fluid becomes greater than a specified value, it moves along the first bypass path (60) and is returned to the first inlet (22) of the first path (20) so that the entire system operates stably.

[0070] A first check valve section (80) is provided in the first bypass passage (60). The first check valve section (80) selectively blocks the first bypass passage (60) and opens when the fluid moving along the first bypass passage (60) reaches a pressure value above a certain level, thereby allowing the fluid to move.

[0071] And, a second bypass channel (70) is provided on one side of the second channel (30). The second bypass channel (70) is provided on one side of the second channel (30), and one end is connected to the second outlet (34) of the second channel (30), and the other end is connected to the second inlet (32) of the second channel (30).

[0072] That is, when the fluid moving along the second Euro (30) is supplied to the actuator and the amount or pressure of the fluid becomes greater than a specified value, it moves along the second bypass Euro (70) and is returned to the second inlet (32) of the second Euro (30) so that the entire system operates stably.

[0073] A second check valve section (90) is provided in the second bypass passage (70). The second check valve section (90) selectively blocks the second bypass passage (70) and opens when the fluid moving along the second bypass passage (70) reaches a pressure value above a certain level, thereby allowing the fluid to move.

[0074] The first check valve section (80) selectively blocks the first bypass passage (60) and the second check valve section (90) selectively blocks the second bypass passage (70). These functions can be configured in various ways, and in the present invention, they can be configured as follows.

[0075] The first check valve section (80) and the second check valve section (90) can be formed as a single part. That is, as shown in FIG. 3, a check valve hole (11) is formed penetrating the body section (10), and the first bypass passage (60) and the second bypass passage (70) are positioned in the check valve hole (11) to function as respective check valves.

[0076] The first check valve section (80) and the second check valve section (90) each comprise a cylindrical piston (91) positioned in a central O-ring, a pair of washers (92) provided on both sides of the piston (91), a pair of valve bodies (93) formed in a cylindrical shape and provided on both sides of the washers (92) to engage with both ends of the piston (91), a pair of first springs (94) provided inside the valve bodies (93) to elastically support the washers (92) in the direction of the piston (91), a first ball (95) movable along the valve body (93) on one side and positioned on the first bypass passage (60) to selectively block, and a second ball (95) movable along the valve body (93) on the other side and positioned on the second bypass passage (70) to selectively block It may comprise a second ball (96), a pair of second springs (97) each provided on the valve body (93) to elastically support the first ball (95) and the second ball (96) to close the first bypass passage (60) and the second bypass passage (70), respectively, and a pair of adjustment screws (98) provided on the outside of the second springs (97) to support the second springs (97).

[0077] First, a piston (91) is provided in the check valve section (80, 90). The piston (91) can be fixed in the center of the check valve hole (11) in a cylindrical shape. As shown in FIG. 3, the check valve hole (11) is formed such that the inner diameter is smallest in the center and increases towards both ends.

[0078] That is, the piston (91) is fixed by engaging with the inner diameter of the center of the check valve hole (11). An O-ring is provided on the outer surface of the piston (91) to increase the contact force with the inner surface of the center of the check valve hole (11). Of course, the O-ring serves to block the fluid from moving left and right along the check valve hole (11).

[0079] A pair of washers (92) are provided on both sides of the piston (91). Additionally, a valve body (93) is provided on each side of the piston (91). The valve body (93) is provided on both sides of the washers (92) and can be divided into a first valve body (93a) and a second valve body (93b).

[0080] The above valve body (93) is formed in a hollow cylindrical shape, providing a space for fixing various parts constituting the check valve to be described below.

[0081] An O-ring may be further provided on the outer surface of the valve body (93). The O-ring seals the space between the valve body (93) and the check valve hole (11) to block the movement of fluid between the valve body (93) and the check valve hole (11).

[0082] A first spring (94) is provided in each of the first valve body (93a) and the second valve body (93b). One end of the first spring (94) contacts one side of the washer (92), and the other end is supported by the inner wall of the valve body (93) to elastically support the washer (92) so that it is in close contact with the piston (91).

[0083] And, a first ball (95) is provided inside the first valve body (93). The first ball (95) is configured to be movable along the inside of the first valve body (93), and in particular, the first ball (95) is positioned on the first bypass passage (60) and serves to selectively block the first bypass passage (60).

[0084] In addition, a stepped curved surface is formed on one side of the inner surface of the first valve body (93a) to which the first ball (95) moves, thereby limiting the range of movement of the first ball (95) to one side. A second spring (97) is provided at the other end of the inner surface of the first valve body (93). The first ball (95) is elastically supported by the second spring (97) so as to be in close contact with the stepped curved surface.

[0085] A second ball (96) is provided inside the second valve body (93b). The second ball (96) is configured to be movable along the inside of the second valve body (93b), and in particular, the second ball (96) is positioned on the second bypass passage (70) to selectively block the second bypass passage (70).

[0086] In addition, a stepped curved surface is formed on one side of the inner surface of the second valve body (96b) to which the second ball (96) moves, thereby limiting the range of movement of the second ball (96) to one side. A second spring (97) is provided at the other end of the inner surface of the second valve body (96b). The second ball (96) is elastically supported by the second spring (97) so as to be in close contact with the stepped curved surface.

[0087] Next, an adjustment screw (98) is provided at the other end of the valve body (93). The adjustment screw (98) is located on the outside of the second spring (97) and serves to support the second spring (97). In particular, a screw thread is provided on the outer surface of the adjustment screw (98) so that the degree of compression of the second spring (97) can be adjusted by moving along the screw thread on the inner surface of the check valve hole (11).

[0088] The above adjustment screw (98) can be formed in various ways, and in the present invention, it can be formed as follows.

[0089] The above adjustment screw (98) may comprise a cover (98a) that supports the second spring (97) and a plug (98b) that supports the cover (98a) and has a screw thread formed on its outer surface that engages with the screw thread of the inner wall of the body part (10) and slides inside and outside the body part.

[0090] A cover (98a) is provided on the above adjustment screw (98). The cover (98a) is formed as a cylinder, and its tip supports one end of the second spring (97).

[0091] And, a plug (98b) is provided in the cover (98a). The plug (98b) supports the other end of the cover (98a) and slides the cover (98a) to adjust the degree to which the second spring (97) is compressed.

[0092] In addition, a first relief valve (100) is further provided in the part where the first discharge port (24) of the first Euro (20) and the first bypass Euro (60) are connected. The first relief valve (100) serves to regulate the pressure of the fluid by forcibly or automatically opening it to discharge the fluid when the amount and pressure of the fluid moving along the first Euro (20) are not regulated even by the first bypass Euro (60).

[0093] In addition, a second relief valve (102) is further provided in the part where the second discharge port (34) of the second Euro (30) and the second bypass Euro (70) are connected. The second relief valve (102) serves to regulate the pressure of the fluid by forcibly or automatically opening it to discharge the fluid when the amount and pressure of the fluid moving along the second Euro (30) are not regulated even by the second bypass Euro (70).

[0095] Next, the process of connecting and disconnecting the check valve portion of the control block assembly according to the present invention is described.

[0096] First, a piston (91) is inserted into the check valve hole (11) and fixed by inserting the piston (91) into the part of the check valve hole (11) with the smallest diameter. At this time, an O-ring is installed on the outer surface of the piston (91) before insertion.

[0097] Then, washers (92) are inserted on both sides of the piston (91). A first spring (94) is installed on the front of the valve body (93) and inserted into the check valve hole (11). At this time, an O-ring is installed on the outer surface of the valve body (93) and inserted into the check valve hole (11).

[0098] A first ball (95) and a second ball (96) are inserted into the stepped surface formed at the other end of the valve body (93). The first ball (95) is inserted into the first valve body (93a) and the second ball (96) is inserted into the second valve body (93b).

[0099] Then, a second spring (97) is positioned on the front of the cover portion (98a) of a pair of adjustment screws (98), the cover portion (98a) is inserted into the check valve hole (11), and a plug (98b) is inserted into the check valve hole (11) to secure it.

[0100] Next, the process of separating the check valve section (80, 90) involves separating a pair of plugs (98b) located on both sides of the body from the body section (10). Then, the cover section (98a), second spring (97), and ball (95, 96) provided on each plug (98b) are removed.

[0101] Then, after removing the first valve body (93a) and the second valve body (93b), the washers (92) on both sides of the piston (91) are removed. Then, when the piston (91) is removed from the check connection hole (11), the check valve part is completely removed from the control block assembly.

[0103] Next, the operation process of the control block assembly for a valve according to the present invention is explained.

[0104] When fluid is introduced through the first inlet (22), it flows into the first flow path (20). At this time, the amount and pressure of the fluid are controlled by the first control unit (40). The fluid that has passed through the first control unit (40) is supplied to the actuator through the first outlet (24).

[0105] Meanwhile, if the pressure or amount of fluid discharged through the first outlet (24) is high, the fluid moves along the first bypass path (60), passes through the first check valve section (80), and then flows back into the first path (20) to lower the pressure of the fluid.

[0106] And, if it is necessary to forcibly regulate the pressure of the fluid moving through the first Euro (20), the first relief valve (100) can be forcibly opened to discharge the fluid and lower it.

[0107] Then, when fluid is introduced through the second inlet (32), it flows into the second flow path (30). At this time, the amount and pressure of the fluid are controlled by the second control unit (50). The fluid that has passed through the second control unit (50) is supplied to the actuator through the second outlet (34).

[0108] Meanwhile, if the pressure or amount of fluid discharged through the second outlet (34) is high, the fluid moves along the second bypass path (70), passes through the second check valve section (90), and then flows back into the second path (30) to lower the pressure of the fluid.

[0109] And, if it is necessary to forcibly regulate the pressure of the fluid moving through the second Euro (30), the second relief valve (102) can be forcibly opened to discharge the fluid and lower it.

[0111] As such, those skilled in the art to which the present invention pertains will understand that the technical configuration of the present invention described above can be implemented in other specific forms without altering the technical concept or essential features of the present invention.

[0112] Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting, and the scope of the invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the invention. Explanation of the symbols

[0114] 10: Body part 11: Check valve port 20: 1st Euro 22: 1st Inlet 24: Discharge 1 30: 2nd Euro 32: Second inlet 34: Second outlet 40: First adjustment section 41: First adjustment hole 42: 1st adjusting piston 43: 1st seat 44: 1st Connector 45: 1st Adjustment Screw 50: Second adjustment part 51: Second adjustment hole 52: Second adjustment piston 53: Second seat 54: 2nd connector 55: 2nd adjustment screw 60: 1st Bypass Euro 70: 2nd Bypass Euro 80: 1st check valve section 90: 2nd check valve section 91: Piston 92: Washer 93a: First valve body 93b: First valve body 94: 1st spring 95: 1st ball 96: 2nd ball 97: 2nd spring 98: Adjustment screw 98a: Cover 98b: Plug

Claims

Claim 1 A body portion formed by a block; a first fluid passage formed penetrating the interior of the body portion, having a first inlet at one end and a first outlet at the other end; a second fluid passage formed penetrating the interior of the body portion, having a second inlet at one end and a second outlet at the other end; a first control portion for controlling the flow of fluid moving along the first fluid passage; a second control portion for controlling the flow of fluid moving along the second fluid passage; a first bypass fluid passage provided on one side of the first fluid passage, having one end connected to the first outlet of the first fluid passage and the other end connected to the first inlet of the first fluid passage; a second bypass fluid passage provided on one side of the second fluid passage, having one end connected to the second outlet of the second fluid passage and the other end connected to the second inlet of the second fluid passage; the A control block assembly comprising: a first check valve portion arranged to selectively move the fluid from the first outlet to the first inlet in the first bypass passage; and a second check valve portion arranged to selectively move the fluid from the second outlet to the second inlet in the second bypass passage, wherein the first control portion is formed in a bar shape and has a taper formed such that the cross-section narrows toward the tip. Claim 2 In claim 1, the first adjusting part comprises: a first adjusting piston formed in a cylindrical shape and inserted into a first adjusting hole of the body part, with its tip formed to engage with a first flow path; a first seat in a cylindrical shape on the outer circumference of the first flow path at the tip of the first adjusting piston; a first connector formed in a cylindrical shape, with the first adjusting piston in contact inside and the first adjusting hole in contact outside; and a first adjusting screw formed in a cylindrical shape, with its tip connected to the first adjusting piston and having a screw thread formed on its outer circumference to move along the screw thread formed on the inner surface of the first connector. Claim 3 A control block assembly according to claim 2, characterized in that the tip of the first adjusting piston is formed to be tapered such that the diameter decreases toward the tip. Claim 4 A control block assembly according to claim 2, wherein a first guide groove with a screw thread is formed on the outer surface of the tip of the first adjusting piston, and the first guide groove is formed to become deeper towards the tip.

Images