Valve shutter module for gas supply apparatus

Abstract

The present invention relates to a valve shutter module for a gas supply device, and more particularly, to a valve shutter module for a gas supply device for opening and closing a valve of a gas cylinder mounted inside a gas supply device, comprising: a main body unit installed on one side inside the gas supply device including a lifting shaft installed to be vertically movable; and a valve cup unit connected to the lifting shaft and mountable to the valve; wherein the valve cup unit comprises: a multi-handle mounted on the valve according to the lifting of the lifting shaft while having the same center as the lifting shaft and rotating the valve; and an alignment means having one side connected to the upper part of the multi-handle and the other side connected to the lower part of the lifting shaft; wherein the alignment means is characterized in that, when the center of the valve and the center of the multi-handle are misaligned and the multi-handle is mounted on the valve, the center of the multi-handle deviates from the center of the lifting shaft and can be aligned with the center of the valve.

Description

Technology Field

[0001] The present invention relates to a valve shutter module for a gas supply device, and more specifically, to a valve shutter module for a gas supply device capable of aligning the center of a multi-handle to the center of the valve of a gas cylinder mounted in a cabinet, even if the center of the valve of a gas cylinder mounted in a cabinet is misaligned with the center of a multi-handle. Background Technology

[0003] Generally, various types of processes or experiments for manufacturing semiconductors or display panels are carried out as needed in locations where a specific gas environment is established (e.g., process chambers or laboratories equipped with a specific gas environment).

[0004] Since most of the gases used to create these specific gas environments are toxic and flammable, inhalation by the human body or exposure to the atmosphere can cause serious problems such as various safety accidents and environmental pollution.

[0005] For this reason, the handling of various gases always requires caution, and there is a need for a safe and accurate supply of gas to ensure that no leaks occur during supply.

[0006] Meanwhile, the aforementioned gases are typically filled into cylindrical gas cylinders, commonly referred to as gas canisters, and stored under high pressure; the gas cylinders are mounted inside a gas supply device to supply the gas.

[0007] A gas cylinder may include a cylinder body in which gas is stored, a valve connected to one end of the cylinder body to control the discharge of gas stored in the cylinder body, a gas outlet port through which gas inside the cylinder body is discharged according to the control of the valve, and an end cap that is attached so as to be detachably fitted over the gas outlet port.

[0008] The gas cylinder is mounted inside various types of gas supply devices and connected via connecting pipes to necessary locations, such as process chambers or laboratories, that require gas, thereby supplying the gas filled inside to the process chamber or laboratory and enabling the process chamber or laboratory to be set into a specific gas environment.

[0009] Meanwhile, the gas supply device includes a cabinet that can be opened and closed by a door and has a gas cylinder mounted inside, a connector module connected to the gas outlet port of the gas cylinder, an alignment module installed on the upper part of the cabinet that moves the connector module in the x, y, and z axis directions when aligning the connector module with respect to the gas cylinder, and a valve shutter module installed on the upper part of the cabinet for opening and closing the valve of the gas cylinder.

[0010] Among the various components of a gas supply device, the valve shutter module is generally composed of a main body unit and a multi-handle.

[0011] The multi-handle is connected to the lifting axis of the main body unit, which is installed to be vertically movable, and is connected to the main body unit so as to be vertically movable.

[0012] A plurality of mounting pins are provided at equal intervals on the lower edge of the multi-handle so that it can be inserted and mounted into a mounting groove formed on the outer surface of the valve of the gas cylinder, and the valve shutter module can open and close the valve by providing rotational force to the valve while the mounting pins of the multi-handle are inserted and mounted into the mounting groove of the valve.

[0013] However, these conventional valve shutter modules have a problem in that they cannot correct the alignment when the center of the multi-handle and the center of the valve of the gas cylinder mounted in the cabinet are misaligned due to errors in the mounting position of the gas cylinder mounted in the cabinet, slight lifting of the gas cylinder depending on the condition of the bottom of the gas cylinder, and valve installation errors of the gas cylinder manufactured by casting.

[0014] In addition, conventional valve shutter modules have a problem in that when the center of the multi-handle and the center of the valve of the gas cylinder mounted in the cabinet operate with misalignment, the mounting pin of the multi-handle is forcibly inserted while pushing against the inner surface of the mounting groove formed in the valve of the gas cylinder, causing the mounting pin and the lifting shaft to become misaligned.

[0015] In addition, conventional valve shutter modules have a problem in that when the center of the handle and the center of the valve of the gas cylinder mounted in the cabinet operate with misalignment, the center of the lifting axis and the center of the valve do not coincide, and the multi-handle operates off-center to one side of the valve, resulting in the rotational force generated by the main body unit not being evenly transmitted to the valve and causing significant vibration and noise.

[0016] In addition, conventional valve shutter modules have a problem in that the rotational force generated by the main body unit is not evenly transmitted to the valve of the gas cylinder, resulting in the valve not opening and closing smoothly and causing damage to the valve.

[0017] In addition, conventional valve shutter modules have the problem that multiple errors can occur during operation. Prior art literature

[0019] (Patent Document 0001) KR 10-2024-0006108 A The problem to be solved

[0020] The present invention has been devised to solve the aforementioned problems, and aims to provide a valve shutter module for a gas supply device that can align and correct the center of a multi-handle to the center of a gas cylinder valve mounted in a cabinet through an alignment means, even if the center of the valve of a gas cylinder mounted in a cabinet is misaligned with the center of a multi-handle due to errors in the mounting position of the gas cylinder mounted in the cabinet, slight lifting of the gas cylinder due to the condition of the bottom of the gas cylinder, and valve installation errors of a gas cylinder manufactured by casting. means of solving the problem

[0022] A valve shutter module for a gas supply device according to the present invention for solving the above-mentioned problem is a valve shutter module for a gas supply device for opening and closing a valve of a gas cylinder mounted inside a gas supply device, comprising: a main body unit installed on one side inside the gas supply device including a lifting shaft installed to be vertically movable; and a valve cup unit connected to the lifting shaft and mountable to the valve; wherein the valve cup unit comprises: a multi-handle mounted on the valve according to the lifting of the lifting shaft while having the same center as the lifting shaft and rotating the valve; and an alignment means having one side connected to the upper part of the multi-handle and the other side connected to the lower part of the lifting shaft; wherein the alignment means is characterized by enabling the center of the multi-handle to deviate from the center of the lifting shaft and align with the center of the valve when the center of the valve and the center of the multi-handle are misaligned while the multi-handle is mounted on the valve.

[0023] Additionally, the alignment means comprises: a lower plate fastened to the upper part of the multi-handle; a first linear motion guide coupled to the upper part of the lower plate; a connecting plate coupled to the upper part of the first linear motion guide; a second linear motion guide coupled to the upper part of the connecting plate; and an upper plate having a lower surface coupled to the upper part of the second linear motion guide and an upper surface coupled to the lower end of the lifting shaft.

[0024] In addition, the first linear motion guide and the second linear motion guide are characterized by enabling the multi-handle to be aligned in a mutually intersecting direction when the multi-handle is mounted on the valve in a state where the center of the valve and the center of the multi-handle are misaligned.

[0025] Additionally, the first linear motion guide comprises a first guide rail fixedly installed on the upper surface of the lower plate; and a first guide block slidably coupled to the first guide rail and fixedly installed on the lower surface of the connecting plate; and the second linear motion guide comprises a second guide rail fixedly installed on the upper surface of the connecting plate; and a second guide block slidably coupled to the second guide rail and fixedly installed on the lower surface of the upper plate; wherein the first guide rail moves linearly in the front-rear direction to enable the lower plate and the multi-handle to be aligned together in the front-rear direction, and the second guide rail moves linearly in the left-right direction to enable the connecting plate, the first guide block, the first guide rail, the lower plate, and the multi-handle to be aligned together in the left-right direction.

[0026] Additionally, the alignment unit further includes a cover having a space formed inside, an open bottom surface, and a cover hole formed on an upper surface; the cover is fastened to the lower plate that shields the open bottom surface and surrounds the lower plate, the first guide rail, the first guide block, the connecting plate, the second guide rail, the second guide block, and the upper plate, and the upper plate is fastened to the lower end of the lifting shaft through the cover hole.

[0027] Additionally, a first return member is installed on the upper surface of the lower plate, and a second return member is installed on the lower surface of the upper plate so as to be spaced apart from the first return member. The first return member and the second return member are characterized by mutually acting an attractive force to return the first guide rail and the second guide rail to their original state when the multi-handle is separated from the valve.

[0028] In addition, the first return member and the second return member are characterized by being magnets with different polarities.

[0029] In addition, when the center of the valve and the center of the multi-handle are misaligned and the multi-handle is mounted on the valve and the center of the multi-handle is aligned with the center of the valve, the lifting shaft maintains a state of misalignment with the center of the multi-handle by means of the floating of the connecting plate, the first guide rail fixedly installed on the lower and upper surfaces of the connecting plate, and the second guide rail, and is characterized by being able to transmit the rotational force of the servo motor provided in the main body unit to the multi-handle. Effects of the invention

[0031] The valve shutter module for a gas supply device according to the present invention has the following advantages.

[0032] The valve shutter module for a gas supply device according to the present invention has the advantage that, even if the center of the valve of a gas cylinder mounted in a cabinet is misaligned with the center of a multi-handle due to mounting position errors of the gas cylinder mounted in the cabinet, slight lifting of the gas cylinder due to the condition of the bottom of the gas cylinder, or valve installation errors of a gas cylinder made by casting, the center of the multi-handle can be aligned and corrected to the center of the valve of the gas cylinder mounted in the cabinet through an alignment means.

[0033] The valve shutter module for a gas supply device according to the present invention has the advantage that, even when the center of the multi-handle and the center of the valve of the gas cylinder mounted in the cabinet operate in a manner where they are misaligned, and the mounting pin of the multi-handle is inserted into the mounting groove while pushing the inner surface of the mounting groove formed in the valve of the gas cylinder, the center of the multi-handle can be varied by the first linear motion guide and the second linear motion guide, thereby preventing the mounting pin or the lifting axis from becoming misaligned.

[0034] The valve shutter module for a gas supply device according to the present invention has the advantage that, even if the center of the multi-handle and the center of the gas cylinder mounted in the cabinet operate with the center of the multi-handle being misaligned with each other, the center of the multi-handle is corrected to align with the center of the gas cylinder mounted in the cabinet, so the multi-handle is not deviated to one side of the valve, and the rotational force generated by the main body unit can be evenly transmitted to the valve.

[0035] The valve shutter module for a gas supply device according to the present invention has the advantage that the lifting axis maintains a state of being offset from the center of the multi-handle through the floating of a connecting plate in which first and second guide rails are fixedly installed at the top and bottom, and can transmit the rotational force of the servo motor to the multi-handle at the same angular velocity.

[0036] The valve shutter module for a gas supply device according to the present invention has the advantage of preventing damage to the valve of a gas cylinder in advance, as the rotational force from the main body unit is evenly transmitted to the valve.

[0037] The valve shutter module for a gas supply device according to the present invention has the advantage of preventing multiple errors caused by an error between the center of a multi-handle and the center of a valve of a gas cylinder mounted in a cabinet. Brief explanation of the drawing

[0039] FIG. 1 is a perspective view illustrating a valve shutter module according to one embodiment of the present invention. FIG. 2 is a perspective view illustrating a valve cup unit of a valve shutter module according to one embodiment of the present invention. FIG. 3 is an exploded perspective view illustrating the alignment means of a valve shutter module according to one embodiment of the present invention. FIG. 4 is a perspective view showing the alignment means of a valve shutter module according to one embodiment of the present invention with the cover removed. FIG. 5 is a usage state diagram illustrating left-right direction alignment correction of a multi-handle through an alignment means of a valve shutter module according to one embodiment of the present invention. FIG. 6 is a usage state diagram illustrating the forward and backward alignment correction of a multi-handle through the alignment means of a valve shutter module according to one embodiment of the present invention. Specific details for implementing the invention

[0040] In the following, embodiments disclosed in this specification will be described in detail with reference to the attached drawings; however, identical or similar components regardless of drawing symbols are given the same reference number, and redundant descriptions thereof will be omitted.

[0041] The suffixes "module" and "part" for components used in the following description are assigned or used interchangeably solely for the sake of ease of drafting the specification, and do not inherently possess distinct meanings or roles. Furthermore, in describing the embodiments disclosed in this specification, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions could obscure the essence of the embodiments disclosed in this specification. Additionally, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification; the technical concept disclosed in this specification is not limited by the attached drawings and should be understood to include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the present invention.

[0042] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0043] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0044] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0045] In this application, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0046] In the drawings, the sizes of the components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, so the present invention is not necessarily limited to what is illustrated.

[0047] Where an embodiment can be implemented differently, a specific process sequence may be performed differently from the order described. For example, two processes described consecutively may be performed substantially simultaneously or proceed in the reverse order of the description.

[0048] For reference, regarding the configurations of the present invention described below that are identical to the prior art, the aforementioned prior art will be referenced, and a separate detailed description will be omitted.

[0049] In addition, for all the following descriptions, the directions of front, back, left, right, up, and down may be based on the direction table shown in FIG. 1.

[0051] FIG. 1 is a perspective view illustrating a valve shutter module according to one embodiment of the present invention.

[0052] FIG. 2 is a perspective view illustrating a valve cup unit of a valve shutter module according to one embodiment of the present invention.

[0053] FIG. 3 is an exploded perspective view illustrating the alignment means of a valve shutter module according to one embodiment of the present invention.

[0054] FIG. 4 is a perspective view showing the alignment means of a valve shutter module according to one embodiment of the present invention with the cover removed.

[0055] As illustrated in FIG. 1, a valve shutter module (10, hereinafter referred to as the valve shutter module) for a gas supply device according to one embodiment of the present invention may be included in a gas supply device (not shown).

[0056] The valve shutter module (10) may be a device for opening and closing a valve (not shown) of a gas cylinder (not shown) mounted inside a cabinet (not shown) of the gas supply device.

[0057] The valve shutter module (10) can be installed on the upper side inside the cabinet to open and close the valve in a vertical direction, in the case of the gas supply device that must insert the gas cylinder into the cabinet by standing it upright in a vertical direction.

[0058] Additionally, the valve shutter module (10) can be installed horizontally in the center of the interior of the cabinet in the case of the gas supply device that requires the gas cylinder to be laid horizontally and the valve side to be inserted into the cabinet.

[0059] In the following description, the explanation will be based on the valve shutter module (10) of the gas supply device, which must be inserted into the cabinet by vertically positioning the gas cylinder.

[0060] The valve shutter module (10) can open or lock the valve by gripping the valve through mounting grooves (not shown) formed at equal intervals on the outer surface of the valve and rotating the valve.

[0061] Referring to FIG. 1, the valve shutter module (10) may include a main body unit (100).

[0062] The main body unit (100) may be configured to drive the valve cup unit (200) described later.

[0063] The main body unit (100) can be formed in a box shape overall in appearance and various parts can be embedded inside.

[0064] Referring to FIG. 1, the main body unit (100) may include a bevel gear (110).

[0065] The bevel gear (110) can be installed in the internal central part of the main body unit (100).

[0066] The bevel gear (110) can be installed on the inner bottom side of the main body unit (100) so as to be rotatable in a clockwise or counterclockwise direction.

[0067] A bevel gear (110) may be provided to transmit rotational force to a valve cup unit (200).

[0068] Referring to FIG. 1, the main body unit (100) may include a lifting part (120).

[0069] The lifting unit (120) may be configured to lift the valve cup unit (200), which will be described later, to connect or disconnect it from the valve.

[0070] The lifting section (120) may include a lifting shaft (121).

[0071] The lifting shaft (121) may be a connecting shaft connected to the valve cup unit (200) to transmit vertical linear motion and rotational force provided by the main body unit (100) to the valve cup unit (200) to be described later.

[0072] The lifting shaft (121) can be inserted into the center of the bevel gear (110) and protrude downward through the lower part of the main body unit (100).

[0073] The lifting shaft (121) can be raised and lowered in the up and down direction by operation of the lifting cylinder (122) to be described later.

[0074] The lifting shaft (121) can be raised and lowered in the up and down direction without interference with the bevel gear (110), and can rotate together with the bevel gear (110) by interfering with the bevel gear (110).

[0075] That is, the lifting shaft (121) can move up and down in a straight line separately from the bevel gear (110) during lifting, but can rotate together with the bevel gear (110) by being constrained during rotation.

[0076] The lifting unit (120) may include a lifting cylinder (122).

[0077] The lifting cylinder (122) may be a driving part for lifting the lifting shaft (121).

[0078] The lifting cylinder (122) can be installed inside the main body unit (100).

[0079] The lifting cylinder (122) may have a rod that descends and is drawn into the interior of the lifting cylinder (122) or ascends and is drawn out of the lifting cylinder (122).

[0080] The lifting cylinder (122) can be fixed to the lower part of the main body unit (100) so that one is placed on the front side and one on the rear side of the lifting shaft (121).

[0081] Two lifting cylinders (122) are installed in a front-rear symmetrical manner with respect to the lifting axis (121) and can be referred to as a front lifting cylinder (122) and a rear lifting cylinder (122), and the rod of the front lifting cylinder (122) and the rod of the rear lifting cylinder (122) can rise or fall together.

[0082] The lifting section (120) may include a lifting plate (123).

[0083] The lifting plate (123) may be configured to connect the lifting shaft (121) and the lifting cylinder (122) to interlock with each other.

[0084] The lifting plate (123) can be formed in the shape of a rectangular plate that is long in the front-rear direction.

[0085] The lifting plate (123) can be fixedly connected to the lifting shaft (121) in the central part, the rod of the front lifting cylinder (122) can be fixedly connected to the front part, and the rod of the rear lifting cylinder (122) can be fixedly connected to the rear part.

[0086] The lifting plate (123) can serve to transmit the vertical linear motion of the lifting cylinder (122) to the lifting axis (121).

[0087] That is, the lifting plate (123) moves in a straight line in the up and down direction together with the rod of the lifting cylinder (122) as it moves in a straight line in the up and down direction, and as the lifting plate (123) moves in a straight line in the up and down direction, the lifting shaft (121) fixed to the lifting plate (123) can be raised.

[0088] Referring to FIG. 1, the main body unit (100) may include a servo motor (130).

[0089] The servo motor (130) may be configured to provide rotational force to the valve cup unit (200) described later, thereby enabling the valve to open and close.

[0090] The servo motor (130) can be installed on the right side of the main body unit (100).

[0091] The servo motor (130) may have a rotating shaft, and the rotating shaft of the servo motor (130) may be equipped with a gear (not shown) that meshes with the bevel gear (110).

[0092] The above gear may be another bevel gear having a central axis that intersects the bevel gear (110).

[0093] Referring to FIGS. 1 and 2, the valve shutter module (10) may include a valve cup unit (200).

[0094] The valve cup unit (200) can be connected to the lower part of the main body unit (100) as a configuration that directly opens and closes the valve.

[0095] The valve cup unit (200) is connected to the lower end of the lifting shaft (121) of the main body unit (100) and can be mounted or removed from the valve according to the operation of the lifting shaft (121).

[0096] More specifically, the valve cup unit (200) can descend together with the lifting shaft (121) as it descends to grasp the valve, descend together with the lifting shaft (121) as it descends to be separated from the valve, and rotate together with the lifting shaft (121) as it rotates in one direction or the opposite direction to open or close the valve.

[0097] Referring to FIGS. 2 to 4, the valve cup unit (200) may include a multi-handle (210).

[0098] The multi-handle (210) may be configured to be directly mounted to or removed from the valve in the valve cup unit (200).

[0099] The multi-handle (210) can be connected to the main body unit (100) via an alignment means (220) to be described later.

[0100] The center axis of the multi-handle (210) and the center axis of the lifting axis (121) may coincide before the operation of the valve shutter unit (10) or when separated from the valve.

[0101] The multi-handle (210) may include a handle body (211) and a mounting pin (212).

[0102] The handle body (211) may be a component that forms the overall appearance of the multi-handle (210).

[0103] The handle body (211) can be formed in the shape of a cylindrical cup.

[0104] A mounting pin (212) can be installed on the handle body (211).

[0105] The mounting pin (212) may be a circular pin formed on the lower edge side of the handle body (211).

[0106] A plurality of mounting pins (212) can be formed at equal intervals along the lower edge of the handle body (211).

[0107] For example, the mounting pins (212) may be provided in eight, and the number of mounting pins (212) may be configured differently as needed.

[0108] The mounting pin (212) is basically installed to protrude downward from the lower surface of the handle body (211), but when a force pressing from the lower side to the upper side is applied, it is retracted into the interior of the handle body (211), and when the applied force is removed, it can be pulled out downward from the handle body (211) and protrude again by the restoring force of a separate elastic member (not shown) installed inside the handle body (211).

[0109] A plurality of mounting pins (212) can be inserted and mounted into a plurality of mounting grooves (not shown) formed on the outer surface of the valve when the handle body (211) is lowered and mounted on the valve.

[0110] When the handle body (211) rotates in this state, the plurality of mounting pins (212) are caught on one side of the inner surface of the mounting groove corresponding to each, and push the inner side of the mounting groove in a circumferential direction so as to open and close the valve.

[0111] Referring to FIGS. 2 to 4, the valve cup unit (200) may include an alignment means (220).

[0112] The alignment means (220) may be configured to naturally align the center of the valve and the center of the multi-handle (210) during the operation of the valve shutter module (10) when they are misaligned.

[0113] That is, when the gas cylinder is mounted in the cabinet, the center of the valve may be misaligned with the center of the valve cup unit (200), i.e., the multi-handle (210), due to errors in the mounting position of the gas cylinder, slight lifting of the gas cylinder due to the condition of the bottom of the gas cylinder, and valve installation errors of the gas cylinder made by casting.

[0114] In this state, when the valve shutter module (10) is operated, the mounting pin (212) of the valve cup unit (200) can be inserted while forcibly pushing the inner side of the valve, and accordingly, the lifting shaft (121) that is fixedly installed in the main body unit (100) and connected to the valve cup unit (200) can be twisted.

[0115] Accordingly, the alignment means (220) may be configured to allow the center of the multi-handle (210) to be variable in order to solve this.

[0116] Additionally, the alignment means (220) may be configured to stably transmit rotational force to the multi-handle (210) in a state where the lifting shaft (121) is misaligned with respect to the center of the valve and the center of the multi-handle (210) that are aligned with each other, when the lifting shaft (121) rotates by the rotation of the servo motor (130).

[0117] The alignment means (220) will be explained in detail below.

[0118] Referring to FIGS. 2 to 4, the alignment means (220) may include a lower plate (221).

[0119] The lower plate (221) may be a rectangular plate formed widely in the horizontal direction.

[0120] The lower plate (221) may be a component that forms the lowest part, i.e., the bottom, of the alignment means (220).

[0121] The lower plate (221) can be combined with the handle body (211).

[0122] The lower plate (221) can be fixed to the handle body (211) in such a way that its lower surface is in close contact with the upper surface of the handle body (211), and the lower plate (221) can move together with the handle body (211).

[0123] Referring to FIGS. 2 to 4, the alignment means (220) may include a first linear motion guide (222).

[0124] The first linear motion guide (222) may be configured to allow the multi-handle (210) to be aligned in the forward and backward directions.

[0125] The first linear motion guide (222) is a commonly used LM guide and may include a first guide rail (222a) and a first guide block (222b) that is slidably coupled to the first guide rail (222a).

[0126] The first guide rail (222a) can be combined while resting on the upper surface of the lower plate (221).

[0127] The first guide rail (222a) can be fixedly installed on the lower plate (221) so as to be positioned lengthwise in the front-rear direction at the center of the lower plate (221).

[0128] The first guide block (222b) can be slidably coupled to the upper part of the first guide rail (222a).

[0129] A plurality of first guide blocks (222b) can be connected to the first guide rail (222a).

[0130] For example, the first guide block (222b) may be provided such that two of them are spaced apart from each other in the front-rear direction.

[0131] The first guide rail (222a) can move in a straight line in the forward and backward directions by sliding relative to the first guide block (222b).

[0132] Referring to FIGS. 2 to 4, the alignment means (220) may include a first return member (223).

[0133] The first return member (223) may be configured to return the position of the multi-handle (210), which has been moved by the first linear motion guide (222) and the second linear motion guide (225) described later, to its original state through the force of the corresponding second return member (227) described later, that is, to a state where the multi-handle (210) is separated from the valve and the center of the multi-handle (210) is positioned on the same line as the center of the lifting axis (121).

[0134] The first return member (223) may be a circular magnet.

[0135] The first return member (223) can be fixedly installed on the upper surface of the lower plate (221).

[0136] The first return member (223) may be provided in multiple numbers.

[0137] For example, the first return member (223) may be provided in two and may be positioned diagonally opposite each other.

[0138] That is, one first return member (223) can be fixed while placed on the front right corner of the upper surface of the lower plate (221), and another first return member (223) can be fixed while placed on the rear left corner of the upper surface of the lower plate (221).

[0139] Referring to FIGS. 2 to 4, the alignment means (220) may include a connecting plate (224).

[0140] The connecting plate (224) may be a cross-shaped plate located in the center of the alignment means (220).

[0141] The connecting plate (224) may be a plate connecting the first linear motion guide (222) and the second linear motion guide (225) to be described later.

[0142] The connecting plate (224) can be fixedly installed on the upper surface of the first guide block (222b) of the first linear motion guide (222).

[0143] More specifically, two first guide blocks (222b) can be connected to the front and rear sides of the lower surface of the connecting plate (224) so ​​as to be spaced apart in the front and rear directions.

[0144] Since the first guide block (222b) is fixed to the connecting plate (224), the first linear motion guide (222) can slide in the forward and backward directions with the first guide rail (222a) coupled to the first guide block (222b).

[0145] The connecting plate (224) can be slidably connected to the first guide rail (222a) and the second guide block (225b) to be described later, through the first guide block (222b) to be connected to the lower surface and the second guide rail (225a) to be described later, to be connected to the upper surface, and can be floated together with the first guide block (222b) and the second guide rail (225a) when the rotation of the servo motor (130) is transmitted to the multi-handle (210) through the lifting shaft (121).

[0146] That is, the connecting plate (224) can function as a floating plate or cross slider that moves between the first guide rail (222a) and the second guide block (225b) described later, together with the first guide block (222b) and the second guide rail (225a).

[0147] Referring to FIGS. 2 to 4, the alignment means (220) may include a second linear motion guide (225).

[0148] The second linear motion guide (225) may be configured to allow the multi-handle (210) to be aligned in the left and right directions.

[0149] The second linear motion guide (225) is an LM guide commonly used in the same way as the first linear motion guide (222), and may include a second guide rail (225a) and a second guide block (225b) that is slidably coupled to the second guide rail (225a).

[0150] The second guide rail (225a) can be combined while resting on the upper surface of the connecting plate (224).

[0151] The second guide rail (225a) can be fixedly installed on the connecting plate (224) so ​​as to be positioned lengthwise in the left-right direction at the center of the upper surface of the connecting plate (224).

[0152] The second guide block (225b) can be slidably coupled to the upper part of the second guide rail (225a).

[0153] A plurality of second guide blocks (225b) can be connected to the second guide rail (225a).

[0154] For example, the second guide block (225b) may be provided such that two of them are spaced apart from each other in the front-rear direction.

[0155] The second guide rail (225a) can move in a straight line in the left and right directions by sliding relative to the second guide block (225b).

[0156] Referring to FIGS. 2 to 4, the alignment means (220) may include an upper plate (226).

[0157] The upper plate (226) may be a rectangular plate formed wide in the horizontal direction and may be formed with a smaller width than the lower plate (221).

[0158] The center of the upper plate (226) may coincide with the center of the lower plate (221).

[0159] The upper plate (226) may be a component that forms the uppermost part of the alignment means (220), that is, the roof.

[0160] The upper plate (226) can be directly connected to the lower end of the lifting shaft (121).

[0161] That is, the upper plate (226) is fixedly installed at the bottom of the lifting shaft (121) and can move together with the lifting or rotation of the lifting shaft (121), and accordingly, the valve cup unit (200) itself can be lifted or rotated.

[0162] The upper plate (226) can be combined with the second guide block (225b) of the second linear motion guide (225).

[0163] The upper plate (226) can be fixed to the second guide block (225b) in such a way that its lower surface is in close contact with the upper surface of the second guide block (225b).

[0164] More specifically, two second guide blocks (225b) can be connected to the left and right sides of the lower center of the upper plate (226), spaced apart in the left and right directions, respectively.

[0165] Since the upper plate (226) is fixed to the lifting shaft (121) and the second guide block (225b) is fixed to the lifting plate (123), the second linear motion guide (225) can slide in the left and right directions with the second guide rail (225a) coupled to the second guide block (225b).

[0166] Referring to FIGS. 2 to 4, the alignment means (220) may include a second return member (227).

[0167] The second return member (227) may be configured to return the position of the valve cup unit (200), which has been moved through the first linear motion guide (222) and the second linear motion guide (225) through the force of the first return member (223), to its original state, that is, to a state where the multi-handle (210) is separated from the valve and the center of the multi-handle (210) is positioned on the same line as the center of the lifting axis (121).

[0168] The second return member (227) may be a circular magnet.

[0169] The second return member (227) can be fixedly installed on the lower surface of the upper plate (226).

[0170] The second return member (227) can be fixedly installed on the upper plate (226) via a separate box-type case.

[0171] For example, the second return member (227) can be fixedly installed on the upper plate (226) as the case is joined to the lower surface of the upper plate (226) while being inserted and fixed inside the case.

[0172] Alternatively, the second return member (227) may be directly fixed to the lower surface of the upper plate (226) as needed.

[0173] The second return member (227) may be provided in multiple numbers.

[0174] For example, the second return member (227) may be provided in two and may be positioned diagonally opposite each other.

[0175] That is, one second return member (227) can be fixed while placed on the front right corner of the lower surface of the upper plate (226), and another second return member (227) can be fixed while placed on the rear left corner of the lower surface of the upper plate (226), and each second return member (227) can be positioned opposite each first return member (223) in a spaced-apart state in the vertical direction.

[0176] The second return member (227) may be a magnet having a different polarity from the first return member (223).

[0177] For example, if the second return member (227) is the N pole, the first return member (223) may be the S pole, and if the second return member (227) is the S pole, the first return member (223) may be the N pole.

[0178] As a result, the first return member (223) and the second return member (227) can exert an attractive force on each other.

[0179] Referring to FIGS. 2 to 4, the alignment means (220) may include a cover (228).

[0180] The cover (228) is a structure that encloses each component of the alignment means (220), and can be formed in the shape of a rectangular parallelepiped with an open bottom surface and a space formed inside to accommodate each component of the alignment means (220).

[0181] The cover (228) can protect each component of the alignment means (220).

[0182] A lower plate (221) can be attached to the lower part of the cover (228).

[0183] The lower plate (221) can be fixedly installed by being inserted into the lower part of the cover (228) and fastened to the cover (228) through a separate fastening member.

[0184] As a result, the open lower surface of the cover (228) can be shielded by the lower plate (221).

[0185] A circular cover hole (228a) may be formed in the center of the upper surface of the cover (228).

[0186] The diameter of the cover hole (228a) can be formed to be larger than the diameter of the circular flange formed at the bottom of the lifting shaft (121).

[0187] The flange of the lifting shaft (121) can be connected to the center of the upper plate (226) through a cover hole (228a), and the periphery of the flange and the inner periphery of the cover hole (228a) are spaced apart from each other so that interference with the lifting shaft (121) can be avoided when the cover (228) moves in the forward, backward, left, and right directions according to the guidance of the first linear motion guide (222) and the second linear motion guide (225).

[0188] Additionally, the inner perimeter of the cover (228) is spaced apart from the perimeter of the upper plate (226), so that interference with the upper plate (226) can be avoided even when the cover (228) moves a certain distance in the front-back-left-right directions.

[0189] The alignment means (220) can be configured as described above, and below, the operation of the alignment means (220) will be described with reference to the drawings.

[0190] FIG. 5 is a usage state diagram illustrating left-right alignment correction of a multi-handle through an alignment means of a valve shutter module according to one embodiment of the present invention, and is a state viewed from the front after removing the cover (228) from the alignment means (220).

[0191] FIG. 6 is a usage state diagram illustrating the forward and backward alignment correction of a multi-handle through the alignment means of a valve shutter module according to one embodiment of the present invention, and is a state viewed from the right side after removing the cover (228) from the alignment means (220).

[0192] The alignment means (220) can correct the alignment between the center of the multi-handle (210) and the center of the valve by moving the multi-handle (210) when the center of the valve of the gas cylinder mounted in the cabinet of the gas supply device is misaligned in the left-right direction or in the front-back direction relative to the center of the multi-handle (210).

[0193] As illustrated in FIGS. 5 and 6, the center line passing through the center of the valve can be called the first center line (C1), the center line passing through the center of the multi-handle (210) can be called the second center line (C2), and the center line passing through the center of the lifting shaft (121) can be called the third center line (C3), and basically, the second center line (C2) and the third center line (C3) can be aligned.

[0194] Referring to FIG. 5, the first centerline (C1) of the valve may be offset to the left with respect to the second centerline (C2) of the multi-handle (210) and the third centerline (C3) of the lifting axis (121) due to mounting position error of the gas cylinder mounted in the cabinet, slight lifting of the gas cylinder depending on the bottom condition of the gas cylinder, and valve installation error of the gas cylinder made by casting (see left side of FIG. 5).

[0195] In this state, when the lifting shaft (121) descends and the multi-handle (210) is mounted on the valve, at least one of the plurality of mounting pins (212) located to the left of the center of the multi-handle (210) can be fitted into the mounting groove of the valve while pushing the inner surface of the corresponding mounting groove of the valve.

[0196] Accordingly, the second guide rail (225a) slides to the left relative to the second guide block (225b), and the connecting plate (224) coupled to the lower part of the second guide rail (225a), the first linear motion guide (222) coupled to the lower part of the connecting plate (224), the lower plate (221) coupled to the lower part of the first guide rail (222a), and the multi-handle (210) coupled to the lower part of the lower plate (221) slide to the left together with the second guide rail (225a), so that the second center line (C2) of the multi-handle (210) can be aligned with the first center line (C1) of the valve (see right side of FIG. 5).

[0197] At this time, due to the movement of the multi-handle (210), the third centerline (C3) of the lifting axis (121) may be misaligned with the second centerline (C2) of the multi-handle (210) in the left and right directions. However, when the multi-handle (210) rises together with the lifting axis (121) and is separated from the valve, the second guide rail (225a) returns to the right and the multi-handle (210) also returns due to the attractive force between the first return member (223) and the second return member (227), so that the state shown on the left side of FIG. 5 can be restored.

[0198] Referring to FIG. 6, the first centerline (C1) of the valve may be misaligned forward with respect to the second centerline (C2) of the multi-handle (210) and the third centerline (C3) of the lifting axis (121) due to errors in the mounting position of the gas cylinder mounted in the cabinet, slight lifting of the gas cylinder depending on the bottom condition of the gas cylinder, and valve installation errors of the gas cylinder made by casting (see left side of FIG. 6).

[0199] In this state, when the lifting shaft (121) descends and the multi-handle (210) is mounted on the valve, at least one of the plurality of mounting pins (212) located on the front side relative to the center of the multi-handle (210) can be fitted into the mounting groove of the valve while pushing the inner surface of the corresponding mounting groove of the valve.

[0200] Accordingly, the first guide rail (222a) slides forward relative to the first guide block (222b), and the lower plate (221) coupled to the lower part of the first guide rail (222a) and the multi-handle (210) coupled to the lower part of the lower plate (221) slide forward together with the first guide rail (222a), so that the second center line (C2) of the multi-handle (210) can be aligned with the first center line (C1) of the valve (see right side of FIG. 6).

[0201] At this time, due to the movement of the multi-handle (210), the third centerline (C3) of the lifting axis (121) may be misaligned with the second centerline (C2) of the multi-handle (210) in the forward and backward directions. However, when the multi-handle (210) rises together with the lifting axis (121) and is separated from the valve, the first guide rail (222a) returns to the rear side by the force between the first return member (223) and the second return member (227), and the multi-handle (210) also returns, so the state shown on the left side of FIG. 6 can be restored.

[0202] In addition, the error between the first center line (C1) of the valve and the second center line (C2) of the multi-handle (210) may be approximately ±2.5 mm.

[0203] The valve shutter module (10) can correct the error between the first center line (C1) of the valve and the second center line (C2) of the multi-handle (210) by the operation of the alignment means (220) as described above. Although the above description separately describes the alignment of the left-right misalignment and the front-back misalignment between the first center line (C1) of the valve and the second center line (C2) of the multi-handle (210), in practice, this can be done simultaneously.

[0204] Due to the operation of such alignment means (220), the valve shutter module (10) operates with the center of the multi-handle (210) and the center of the valve of the gas cylinder mounted in the cabinet misaligned with each other, and even if the mounting pin (212) of the multi-handle (210) is inserted into the mounting groove while pushing the inner surface of the mounting groove formed in the valve, the center of the multi-handle (210) can be varied by the first linear motion guide (222) and the second linear motion guide (225), thereby preventing the mounting pin (212) or the lifting shaft (121) from becoming misaligned. Furthermore, even if the center of the multi-handle (210) and the center of the valve operate with misaligned with each other, the center of the multi-handle (210) is varied to match the center of the valve and alignment is corrected, so the multi-handle (210) does not deviate to one side of the valve, allowing the rotational force from the main body unit (100) to be evenly transmitted to the valve and properly in the mounting groove of the valve. It is possible to accurately insert the mounting pin (212) that is not fitted into place.

[0205] The valve shutter module (10) can transmit the rotational force of the servo motor (130) provided in the main body unit (100) to the multi-handle (210) without causing strain to other parts, by maintaining the center of the multi-handle (210) and the center of the multi-handle (210) in a state where the center of the valve and the center of the multi-handle (210) are misaligned as described above, and the lifting shaft (121) can transmit the rotational force of the servo motor (130) provided in the main body unit (100) to the multi-handle (210) without causing strain to other parts by floating the connecting plate (224), the first guide rail (222a) and the second guide rail (222b) fixedly installed on the lower and upper surfaces of the connecting plate (224). This may be achieved by using an Oldham's coupling method, which is a shaft coupling capable of transmitting power without changing the angular velocity when two shafts (e.g., the center axis of the lifting shaft and the center axis of the multi-handle) are parallel and slightly eccentric.

[0207] As described above, although the present invention has been explained by limited embodiments and drawings, the present invention is not limited thereto and it is obvious that various modifications and variations are possible within the scope of the technical spirit of the present invention and the equivalent scope of the claims described below by those skilled in the art to which the present invention belongs. Explanation of the symbols

[0209] 10: Valve shutter module 100: Main body unit 110: Bevel gear 120: Lifting unit 121: Lifting shaft 122: Lifting cylinder 123: Lifting plate 130: Servo motor 200: Valve cup unit 210: Multi-handle 211: Handle body 212: Mounting pin 220: Alignment means 221: Lower plate 222: First linear motion guide 222a: First guide rail 222b: 1st guide block 223: 1st return member 224: Connecting plate 225: Second linear motion guide 225a: Second guide rail 225b: Second guide block 226: Upper plate 227: Second return member 228: Cover 228a: Cover hole C1: 1st centerline C2: 2nd centerline C3: Third centerline

Claims

Claim 1 delete Claim 2 delete Claim 3 delete Claim 4 A valve shutter module for a gas supply device for opening and closing a valve of a gas cylinder mounted inside a gas supply device comprises: a main body unit installed on one side inside the gas supply device, including a lifting shaft installed to be vertically movable; and a valve cup unit connected to the lifting shaft and mountable to the valve; wherein the valve cup unit comprises: a multi-handle mounted on the valve according to the lifting of the lifting shaft while having the same center as the lifting shaft to rotate the valve; and an alignment means, one end of which is connected to the upper part of the multi-handle and the other end of which is connected to the lower part of the lifting shaft; wherein, when the multi-handle is mounted on the valve in a state where the center of the valve and the center of the multi-handle are misaligned, the center of the multi-handle deviates from the center of the lifting shaft and can be aligned with the center of the valve; and wherein the alignment means comprises: a lower plate fastened to the upper part of the multi-handle; a first linear motion guide coupled to the upper part of the lower plate; a connecting plate coupled to the upper part of the first linear motion guide; and a connecting plate coupled to the upper part of the connecting plate A second linear motion guide; an upper plate having a lower surface coupled to the upper part of the second linear motion guide and an upper surface coupled to the lower end of the lifting shaft; wherein the first linear motion guide and the second linear motion guide each enable the multi-handle to be aligned in a direction intersecting each other when the multi-handle is mounted on the valve in a state where the center of the valve and the center of the multi-handle are misaligned, and the first linear motion guide includes a first guide rail fixedly installed on the upper surface of the lower plate; a first guide block slidably coupled to the first guide rail and fixedly installed on the lower surface of the connecting plate; and the second linear motion guide includes a second guide rail fixedly installed on the upper surface of the connecting plate; a second guide block slidably coupled to the second guide rail and fixedly installed on the lower surface of the upper plate.A valve shutter module for a gas supply device, comprising: a first guide rail that moves linearly in the front-rear direction to enable the lower plate and the multi-handle to be aligned together in the front-rear direction, and a second guide rail that moves linearly in the left-right direction to enable the connecting plate, the first guide block, the first guide rail, the lower plate, and the multi-handle to be aligned together in the left-right direction. Claim 5 In claim 4, the alignment means further comprises a cover having a space formed inside, an open bottom surface, and a cover hole formed on an upper surface; wherein the cover is fastened to the lower plate that shields the open bottom surface and surrounds the lower plate, the first guide rail, the first guide block, the connecting plate, the second guide rail, the second guide block, and the upper plate, and the upper plate is fastened to the lower end of the lifting shaft through the cover hole, a valve shutter module for a gas supply device. Claim 6 A valve shutter module for a gas supply device according to claim 4, wherein a first return member is installed on the upper surface of the lower plate, and a second return member is installed on the lower surface of the upper plate so as to be spaced apart from the first return member, and the first return member and the second return member act as mutual attractive forces to return the first guide rail and the second guide rail to their original state when the multi-handle is separated from the valve. Claim 7 In claim 6, the first return member and the second return member are magnets with different polarities, a valve shutter module for a gas supply device. Claim 8 A valve shutter module for a gas supply device according to claim 4, wherein when the center of the valve and the center of the multi-handle are misaligned and the center of the multi-handle is mounted on the valve and the center of the multi-handle is aligned with the center of the valve, the lifting shaft maintains a state of misalignment with the center of the multi-handle by means of the connecting plate, the first guide rail fixedly installed on the lower and upper surfaces of the connecting plate, and the floating of the second guide rail, and is capable of transmitting the rotational force of a servo motor provided in the main body unit to the multi-handle.

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