Valve interlock structure

Abstract

The valve interlock structure according to the present invention comprises: an assembly housing formed by surrounding rectangular surfaces forming the outermost periphery; two indicators which are located near one of the rectangular surfaces of the assembly housing and protrude from the inside to the outside of the assembly housing; an adjustment unit spirally coupled to the two indicators via the one surface of the assembly housing; a gear column positioned inside the assembly housing and gear-coupled to the two indicators; and an accommodation unit which is positioned around the gear column, passes through the assembly housing, and is gear-coupled to the gear column.

Description

Valve interlock structure

[0001] The present invention relates to a valve interlock structure that recognizes the open / closed state of a valve.

[0002] Typically, valves are installed in pipes that direct the flow of fluid and control the flow rate and velocity of the fluid along the flow path. In industrial settings, these valves are often connected in multiples and used with locking tools. These locking tools, which consist of locks and chains applied to the valve, require the user to directly operate the valve before operating the handle, preventing user errors.

[0003] As an alternative, the above-mentioned lock and chain are being replaced with a valve interlock in the valve. The valve interlock is a protective device installed on the valve to prevent user errors in operation after the valve handle is operated by applying a mechanical mechanism to the valve without direct user operation before the valve handle is operated. In other words, the valve interlock accepts one or two control keys before the valve handle is operated, and controls the opening and closing sequence of the valve after the valve handle is operated.

[0004] However, the handle operation of the above valve is a process of opening or closing the valve through a valve interlock, and the valve interlock is provided with an indicator inside the valve interlock that indicates the open or closed state of the valve to the outside of the valve interlock during the handle operation of the valve. At this time, the indicator is rotated during the operation of the handle to open or close the valve.

[0005] The above indicator is secured to the open or closed state of the valve by a screw member, and the screw member is helically engaged with the indicator to position the screw head close to the indicator or farther away from the indicator. Thereafter, the indicator is shielded from the outside of the valve interlock by a removable cover of the valve interlock. Here, the operator of the valve interlock checks the head position of the screw member from the indicator through the transparent window of the indicator and determines the open or closed state of the valve.

[0006] The above operator has difficulty accurately determining the open or closed state of the valve by observing the screw head position from the indicator. Therefore, to prevent accidents involving fluids entering the pipeline, he frequently applies excessive force to the handle by manipulating the valve handle further. This excessive force can damage the valve's internal components, shortening its service life.

[0007] Meanwhile, the above valve interlock is similarly disclosed as a prior art in Korean Patent Publication No. 10-2135788.

[0008] The present invention has been devised to solve the conventional problems, and its purpose is to provide a valve interlock structure suitable for easily recognizing the open or closed state of a valve to the outside by operating the valve handle.

[0009] A valve interlock structure according to the present invention comprises: an assembly housing surrounded by a square surface on the outermost periphery; two indicators positioned near one of the square surfaces of the assembly housing and protruding from the inside of the assembly housing toward the outside of the assembly housing; an adjusting member exposed from the one surface of the assembly housing and spirally engaging the two indicators through the one surface of the assembly housing; a gear column positioned inside the assembly housing and gear-engaging the two indicators on the opposite side of the one surface of the assembly housing with respect to the two indicators; and a receiving member positioned around the gear column and gear-engaging the gear column while penetrating the assembly housing, wherein the receiving member is characterized in that it rotates together with the two indicators and the gear column when the adjusting member is separated from the two indicators.

[0010] The assembly housing includes a lower support housing, an upper inner housing that is coupled to the lower support housing through spiral members on the lower support housing, and an upper outer housing that is coupled to the lower support housing through spiral members on the lower support housing and surrounds the upper inner housing, wherein the lower support housing, the upper inner housing, and the upper outer housing surround the receiving portion and can rotatably fix the receiving portion.

[0011] The above lower support housing is made of a square plate and can be fitted into the upper inner and outer housings along the traces of the upper inner and outer housings.

[0012] The upper inner and outer housings may be opened near the lower support housing and partially closed away from the lower support housing.

[0013] The above upper built-in housing is formed as a semi-elliptical box and surrounds the gear column together with the lower support housing, thereby allowing the gear column to be fixed in rotation.

[0014] The upper outer housing may be formed as a square box at the lower portion of the upper outer housing to surround the upper inner housing, and may be formed as a cylinder near the receiving portion at the upper portion of the upper outer housing to surround the receiving portion.

[0015] The upper outer housing is coupled to the adjustment unit together with the lower bottom housing and the upper inner housing, and can rotate and fix the two indicators together with the lower bottom housing and the upper inner housing.

[0016] The two indicators are surrounded by the lower support housing, the upper inner housing, and the upper outer housing, and include a first gear, a first coupling pillar piece, a second coupling pillar piece, a second gear, a rotation shaft, a second indicator pillar piece, and a first indicator pillar piece that are sequentially positioned from the lower side toward the upper side of the rotary shaft in the individual indicator and surround the rotary shaft, and the individual indicator can perform gear engagement with the gear pillar through the first gear and the second gear.

[0017] The above-mentioned rotary shaft is rotatably fixed to the lower support housing, the upper internal housing, and the upper external housing, and penetrates the upper internal housing and the upper external housing, the first gear, the first coupling pillar piece, the second coupling pillar piece, and the second gear are positioned between the lower support housing and the upper internal housing, the rotary cylinder penetrates the upper internal housing and the upper external housing, and the second display pillar piece and the first display pillar piece can be positioned on the upper housing.

[0018] The above-described rotary shaft, together with the first gear, the first coupling pillar piece, and the first indicator pillar piece, constitutes a first rotary body, and the first gear, when the first gear is viewed in cross-section, is positioned below the first coupling pillar piece on the rotary shaft and is integral with the rotary shaft and the first indicator pillar piece, and when the first gear is viewed in cross-section, is positioned between the first coupling pillar piece and the rotary shaft and extends from below the first coupling pillar piece, and the first coupling pillar piece surrounds the first gear and rotates relative to the first gear, and can form a helical connection with the adjustment portion.

[0019] The above-described rotating cylinder surrounds the rotating rod and forms a second rotating body together with the second coupling pillar piece, the second gear, and the second indicator pillar piece, and the second gear, when viewed externally, is positioned on the second coupling pillar piece on the rotating cylinder and is integral with the rotating cylinder and the second indicator pillar piece, and when the second gear is viewed in cross section, it surrounds the rotating cylinder together with the second coupling pillar piece, the second gear, and the second indicator pillar piece, and the second coupling pillar piece can rotate relative to the rotating cylinder and form a spiral connection with the adjusting portion.

[0020] The above first gear may have a smaller number of teeth than the above second gear.

[0021] The first display pillar piece and the second display pillar piece have a first alignment line on the outer surface of the first display pillar piece and a second alignment line on the outer surface of the second display pillar piece, and when viewed from the one side of the assembly housing, when the first alignment line of the first display pillar piece and the second alignment line of the second display pillar piece are aligned on the upper outer housing, the open or closed state of the valve can be displayed externally.

[0022] The above adjustment unit may include a protective cover inserted into the upper inner housing and the upper outer housing, a first fixing member that is spirally connected to the first coupling pillar piece, a second fixing member that is spirally connected to the second coupling pillar piece, and a third fixing member that is spirally connected to the lower support housing and the upper inner housing to secure the protective cover to the upper inner housing and the upper outer housing.

[0023] The above protective cover can close the openings of the upper inner housing and the upper outer housing to block external influences on the bonding relationship between the first coupling pillar piece and the first fixing member and the bonding state between the second coupling pillar piece and the second fixing member inside the upper inner housing.

[0024] The first and second fixing members may be configured to, when viewed before closing the one side of the assembly housing with the protective cover, when the first alignment line of the first indicator pillar piece and the second alignment line of the second indicator pillar piece do not coincide, to spirally engage the first and second engaging pillar pieces while partially extending along a guide passage from the upper built-in housing toward the first and second engaging pillar pieces, or, when viewed from the one side of the assembly housing, when the first alignment line of the first indicator pillar piece and the second alignment line of the second indicator pillar piece coincide, to spirally engage the first and second engaging pillar pieces while leaving the guide passage and contacting the first gear and the rotating cylinder to fix the two indicators to the assembly housing.

[0025] The above valve interlock structure further includes a rotation stopper coupled to the first indicator pillar piece and the second indicator pillar piece of the individual indicators in the two indicators, and the rotation stopper may include a first rotation stopper that is detached from the rotary rod while being helically coupled with the first indicator pillar piece, and a second rotation stopper that is detached from the rotary cylinder while being helically coupled with the second indicator pillar piece, depending on whether a first alignment line of the first indicator pillar piece and a second alignment line of the second indicator pillar piece are aligned when viewed from the one side of the assembly housing.

[0026] The gear column includes a rotational axis that is surrounded by the lower support housing and the upper built-in housing and is positioned between the two indicators around the receiving portion, and is rotatably fixed to the lower support housing and the upper built-in housing along the longitudinal direction of the receiving portion, a third gear that surrounds the rotational axis at a lower portion of the rotational axis and is integrally formed with the rotational axis while engaging with the first gear of the individual indicator, and a fourth gear that surrounds the rotational axis at an upper portion of the rotational axis and is integrally formed with the rotational axis while engaging with the second gear of the individual indicator, and gear engaging with the receiving portion is possible through the fourth gear.

[0027] The third gear may have a larger number of teeth than the fourth gear.

[0028] The coupling relationship between the third gear and the first gear has a larger gear ratio than the coupling relationship between the fourth gear and the second gear, and can reduce the speed more than the coupling relationship between the fourth gear and the second gear.

[0029] The above-mentioned receiving portion includes a first receiving portion located around the gear column and surrounded by the lower support housing, the upper inner housing, and the upper outer housing, and a second receiving portion coupled to the first receiving portion and surrounded by the upper outer housing, wherein the first receiving portion and the second receiving portion can be fitted and coupled within the upper outer housing.

[0030] The first receiving portion is formed in a cylindrical shape within the lower support housing, the upper inner housing, and the upper outer housing, and the stem of the valve can be inserted into the inside of the first receiving portion from the outside of the assembly housing.

[0031] The first receiving portion may have a gear member that is rotatably fixed to at least one of the lower support housing, the upper internal housing, and the upper external housing, and that protrudes two gear teeth from the outer surface of the first receiving portion in the upper internal housing and engages with the fourth gear of the gear column.

[0032] When inserting the stem of the valve into the inside of the first receiving portion, the second receiving portion is formed in a cylindrical shape inside the upper outer housing, and the handle of the valve can be inserted into the inside of the second receiving portion from the outside of the assembly housing to connect the stem of the valve and the handle.

[0033] The second receiving portion is coupled with the handle of the valve when the handle is inserted into the inside of the second receiving portion, and when the handle is rotated, the first receiving portion and the gear column are sequentially linked to the rotation of the receiving portion, thereby rotating the first and second rotating bodies of the individual indicators in the two indicators.

[0034] The valve interlock structure according to the present invention comprises:

[0035] An assembly housing, and a receiving portion penetrating the assembly housing in the central area of ​​the assembly housing, a gear column gear-engaged with the receiving portion inside the assembly housing, and two indicators located inside and outside the assembly housing and gear-engaged with the gear column inside the assembly housing,

[0036] By placing the valve handle on the upper part of the receiving part and inserting the valve stem on the lower part of the receiving part, and connecting the stem and the handle inside the receiving part, and connecting the handle to the receiving part, the gear column and the individual indicator are linked to the rotation of the receiving part during the operation of the handle.

[0037] By rotating the first and second rotating bodies at different speeds on individual indicators during the rotation of the gear column, the open or closed state of the valve can be easily recognized externally when the first alignment line of the first rotating body and the second alignment line of the second rotating body are aligned from the outside of the assembly housing.

[0038] Figure 1 is a perspective view showing a valve interlock structure according to the present invention.

[0039] Fig. 2 is a cross-sectional view showing the inside of the valve interlock structure of Fig. 1.

[0040] FIG. 3 is an image showing an individual indicator among two interlocks in the valve interlock structure of FIG. 1.

[0041] Fig. 4 is an image schematically showing an adjustment part inserted into the valve interlock structure of Fig. 1.

[0042] Fig. 5 is a cross-sectional view showing the coupling relationship between individual indicators and adjustment parts in the valve interlock structure of Fig. 1.

[0043] Fig. 6 is a cross-sectional view showing the coupling relationship between individual indicators and rotation stoppers in the valve interlock structure of Fig. 1.

[0044] Fig. 7 is a cross-sectional view showing the coupling relationship between the individual indicator, gear column, and receiving portion in the valve interlock structure of Fig. 1.

[0045] Fig. 8 is a cross-sectional view showing the gear engagement of the first gear of the individual indicator and the third gear of the gear column in the valve interlock structure of Fig. 1.

[0046] Fig. 9 is a cross-sectional view showing the gear engagement of the second gear of the individual indicator and the fourth gear of the gear column in the valve interlock structure of Fig. 1.

[0047] Fig. 10 is an enlarged view partially showing the assembled housing, two indicators, and the receiving portion in the valve interlock structure of Fig. 1.

[0048] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings so that a person having ordinary skill in the art to which the present invention pertains can easily practice the present invention.

[0049] FIG. 1 is a perspective view showing a valve interlock structure according to the present invention, FIG. 2 is a cross-sectional view showing the inside of the valve interlock structure of FIG. 1, and FIG. 3 is an image showing an individual indicator among two interlockers in the valve interlock structure of FIG. 1.

[0050] Fig. 4 is an image schematically showing an adjustment part inserted into the valve interlock structure of Fig. 1, and Fig. 5 is a cross-sectional view showing the coupling relationship between individual indicators and the adjustment part in the valve interlock structure of Fig. 1.

[0051] Fig. 6 is a cross-sectional view showing the coupling relationship between an individual indicator and a rotation stopper in the valve interlock structure of Fig. 1, and Fig. 7 is a cross-sectional view showing the coupling relationship between an individual indicator, a gear column, and a receiving portion in the valve interlock structure of Fig. 1.

[0052] FIG. 8 is a cross-sectional view showing the gear engagement between the first gear of the individual indicator and the third gear of the gear column in the valve interlock structure of FIG. 1, and FIG. 9 is a cross-sectional view showing the gear engagement between the second gear of the individual indicator and the fourth gear of the gear column in the valve interlock structure of FIG. 1.

[0053] Also, Fig. 10 is an enlarged view partially showing the assembled housing and two indicators and the receiving portion in the valve interlock structure of Fig. 1.

[0054] Referring to FIGS. 1 to 10, a valve interlock structure (170) according to the present invention includes an assembly housing (20), two indicators (74, 78), an adjustment unit (90), a gear column (130), and a receiving unit (160), as shown in FIGS. 1, 2, and 7. In schematic form, the assembly housing (20) is surrounded by a square surface on the outermost periphery, as shown in FIG. 1.

[0055] The above two indicators (74, 78) are positioned near one of the square surfaces of the assembly housing (20), as shown in FIGS. 1, 5, and 6, and protrude from the inside of the assembly housing (20) toward the outside of the assembly housing (20). The adjustment part (90) is exposed from one surface of the assembly housing (20) and is spirally connected to the two indicators (74, 78) through one surface of the assembly housing (20).

[0056] The above gear column (130) is positioned inside the assembly housing (20) as shown in FIGS. 1 and 2, 5 and 7, and is gear-engaged with two indicators (74, 78) on opposite sides of one side of the assembly housing (20) based on the two indicators (74, 78). The receiving portion (160) is positioned around the gear column (130) as shown in FIGS. 1 and 7, and is gear-engaged with the gear column (130) while penetrating the assembly housing (20).

[0057] Here, the receiving portion (160), when considering FIGS. 1, 7 and 10, rotates together with the two indicators (74, 78) and the gear column (130) when the adjusting portion (90) is separated from the two indicators (74, 78).

[0058] More specifically, the assembly housing (20) includes, as shown in FIGS. 1 and 2, a lower support housing (13), an upper internal housing (16) that is coupled to the lower support housing (13) through spiral members (25) on the lower support housing (13), and an upper external housing (19) that is coupled to the lower support housing (13) through spiral members (25) on the lower support housing (13) and surrounds the upper internal housing (16).

[0059] Here, the lower support housing (13), the upper internal housing (16), and the upper external housing (19) surround the receiving portion (160) and fix the receiving portion (160) in rotation, as shown in FIGS. 1 and 7. The lower support housing (13) is made of a square plate, as shown in FIGS. 2, 5, and 6, and is fitted along the traces of the upper internal and external housings (16, 19) and is coupled to the upper internal and external housings (16, 19).

[0060] The upper inner and outer housings (16, 19) are opened close to the lower support housing (13) and partially closed away from the lower support housing, as shown in FIGS. 1, 5 and 6.

[0061] The upper inner housing (16) is formed as a semi-elliptical box, as shown in FIGS. 2 and 7, and surrounds the gear column (130) together with the lower support housing (13) to rotate and fix the gear column (130). The upper outer housing (19) is formed as a square box at the lower portion of the upper outer housing (19), as shown in FIGS. 1 and 2 and FIGS. 7 to 9, and surrounds the upper inner housing (16), and is formed as a cylinder near the receiving portion (160) at the upper portion of the upper outer housing (19) to surround the receiving portion (160).

[0062] The upper outer housing (19) is coupled with the adjustment part (90) together with the lower bottom housing (13) and the upper inner housing (16), as shown in FIG. 1 and FIGS. 5 to 7, and rotates and fixes two indicators (74, 78) together with the lower bottom housing (13) and the upper inner housing (16).

[0063] The above two indicators (74, 78) are surrounded by a lower support housing (13), an upper inner housing (16), and an upper outer housing (19), as shown in FIGS. 1 and 3 and FIGS. 5 to 7, and include a first gear (44), a first coupling pillar piece (44), a second coupling pillar piece (52), a second gear (54), a rotary cylinder (56), a second indicator pillar piece (58), and a first indicator pillar piece (48) that are sequentially positioned from the lower side toward the upper side of the rotary shaft (42) in the individual indicator (74 or 78), and engage in gear engagement with a gear pillar (130) through the first gear (44) and the second gear (54) in the individual indicator (74 or 78).

[0064] The above-mentioned rotary shaft (42) is rotatably fixed to the lower support housing (13), the upper internal housing (16), and the upper external housing (19), as shown in FIGS. 1 and 3 and FIGS. 5 to 7, and penetrates the upper internal housing (16) and the upper external housing (19). The first gear (44), the first coupling pillar piece (46), the second coupling pillar piece (52), and the second gear (54) are positioned between the lower support housing (13) and the upper internal housing (16), as shown in FIG. 5.

[0065] The above-mentioned rotary shaft (56) penetrates the upper inner housing (16) and the upper outer housing (19), as shown in FIGS. 3 and 5 to 7. The second indicator pillar piece and the first indicator pillar piece are positioned on the upper housing (19), as shown in FIGS. 1 and 3 and 5 to 7.

[0066] The above-described rotary shaft (42) forms a first rotary body (64) together with the first gear (44), the first coupling pillar piece (46), and the first indicator pillar piece (48), as shown in FIGS. 3 and 5 to 7. When the first gear (44) is viewed in cross section, as shown in FIGS. 3 and 5 to 7, the first gear (44) is positioned below the first coupling pillar piece (46) on the rotary shaft (42) and is integral with the rotary shaft (42) and the first indicator pillar piece (48), and when the first gear (44) is viewed in cross section, it extends from below the first coupling pillar piece (46) and is positioned between the first coupling pillar piece (46) and the rotary shaft (42).

[0067] Here, the first coupling pillar piece (46) surrounds the first gear (44) and rotates relative to the first gear (44), as shown in FIGS. 3 and 5, and is helically coupled with the adjustment part (90).

[0068] The above-described rotating cylinder (56), as shown in FIGS. 3 and 5, surrounds the rotating rod (42) and forms a second rotating body (68) together with the second coupling pillar piece (52), the second gear (54), and the second indicator pillar piece (58). As shown in FIGS. 3, 5, and 6, when the second gear (54) is viewed externally, it is positioned on the second coupling pillar piece (52) on the rotating cylinder (56) and is integral with the rotating cylinder (56) and the second indicator pillar piece (58), and when the second gear (54) is viewed in cross section, it surrounds the rotating cylinder (56) together with the second coupling pillar piece (52), the second gear (54), and the second indicator pillar piece (58).

[0069] Here, the second coupling pillar piece (52) rotates relatively to the rotating cylinder (56) as shown in FIGS. 3 and 5, and is helically coupled with the adjusting part (90). The first gear (44) has a smaller number of teeth than the second gear (54), as shown in FIGS. 3 and 8 and 9.

[0070] The first display pillar piece (48) and the second display pillar piece (58) have a first alignment line (L1) on the outer surface of the first display pillar piece (48) and a second alignment line (L2) on the outer surface of the second display pillar piece (58), as shown in FIGS. 1, 3, and 10, and when viewed from one side of the assembly housing (20), the opening or closing of the valve (not shown in the drawing) is displayed externally when the first alignment line (L1) of the first display pillar piece (48) and the second alignment line (L2) of the second display pillar piece (58) are aligned on the upper outer housing (19).

[0071] The above adjustment unit (90) includes, as shown in FIGS. 1 to 3 and FIGS. 4, 5 and 7, a protective cover (82) inserted into the upper inner housing (16) and the upper outer housing (19), a first fixing member (84) that is spirally connected to the first coupling pillar piece (46), a second fixing member (86) that is spirally connected to the second coupling pillar piece (52), and a third fixing member (88) that is spirally connected to the lower support housing (13) and the upper inner housing (16) to secure the protective cover (82) to the upper inner housing (16) and the upper outer housing (19).

[0072] The above protective cover (82) closes the openings of the upper inner housing (16) and the upper outer housing (19) to block external influences on the coupling relationship between the first coupling pillar piece (46) and the first fixing member (84) and the coupling state between the second coupling pillar piece (52) and the second fixing member (86) inside the upper inner housing (16), as shown in FIG. 1 and FIGS. 3 to 5.

[0073] The first and second fixing members (84, 86), when viewed before closing one side of the assembly housing (20) with the protective cover (82) as shown in FIGS. 2 to 4 and FIG. 5, are spirally connected to the first coupling pillar piece (46) and the second coupling pillar piece (62) while partially extending over the guide passage (15) from the upper built-in housing (16) toward the first coupling pillar piece (46) and the second coupling pillar piece (52) inside the upper built-in housing (16) when the first alignment line (L1) of the first indicator pillar piece (48) and the second alignment line (L2) of the second indicator pillar piece (58) do not coincide, or

[0074] When viewed from one side of the assembly housing (20), when the first alignment line (L1) of the first indicator pillar piece (48) and the second alignment line (L2) of the second indicator pillar piece (58) are aligned, the two indicators are fixed to the assembly housing (20) while leaving the guide passage (15) and engaging in a spiral manner with the first coupling pillar piece (46) and the second coupling pillar piece (52) and contacting the first gear (44) and the rotating cylinder (56).

[0075] The above valve interlock structure (170) further includes a rotation stopper (110) coupled to the first indicator pillar piece (48) and the second indicator pillar piece (58) of the individual indicators (74 or 78) in the two indicators (74, 78), as shown in FIGS. 3 and 6. The rotation stopper (110) includes a first rotation stopper (104) that is attached to the rotary shaft (42) while being helical-engaged with the first indicator pillar piece (48), and a second rotation stopper (108) that is attached to the rotary cylinder (56) while being helical-engaged with the second indicator pillar piece (58), depending on whether the first alignment line (L1) of the first indicator pillar piece (48) and the second alignment line (L2) of the second indicator pillar piece (58) are aligned when viewed from one side of the assembly housing (20), as shown in FIGS. 3 and 6.

[0076] The gear column (130) is surrounded by a lower support housing (13) and an upper built-in housing (16), as shown in FIGS. 7 to 9, and is positioned between two indicators (74, 78) around the receiving portion (160), and includes a rotational shaft (123) that is rotatably fixed to the lower support housing (13) and the upper built-in housing (16) along the longitudinal direction of the receiving portion (160), a third gear (126) that surrounds the rotational shaft (123) at the lower portion of the rotational shaft (123) and is integrally formed with the rotational shaft (123) and engages a gear with the first gear (44) of the individual indicator (74 or 78), and a fourth gear (145) that surrounds the rotational shaft (123) at the upper portion of the rotational shaft (123) and is integrally formed with the rotational shaft (123) and engages a gear with the second gear (54) of the individual indicator (74 or 78), and the fourth The gear (145) is connected to the receiving part (160).

[0077] The third gear (126) has a larger number of teeth than the fourth gear (129), as shown in FIGS. 7 to 9. The coupling relationship between the third gear (126) and the first gear (44) has a larger gear ratio than the coupling relationship between the fourth gear (129) and the second gear (54), as shown in FIGS. 7 to 9, and reduces the speed to a greater extent than the coupling relationship between the fourth gear (129) and the second gear (54).

[0078] This is because the gear ratio of the third gear (126) and the first gear (44) is, in FIGS. 8 and 9, the number of teeth of the third gear / the number of teeth of the first gear = 7 / 10 = 0.7, and the gear ratio of the fourth gear (129) and the second gear (54) is, in FIGS. 8 and 9, the number of teeth of the fourth gear / the number of teeth of the second gear = 6 / 11 = 0.55.

[0079] The above-mentioned receiving portion (160) includes, as shown in Fig. 7, a first receiving portion (154) positioned around a gear column (130) surrounded by a lower support housing (13), an upper internal housing (16), and an upper external housing (19), and a second receiving portion (158) surrounded by an upper external housing (19) coupled with the first receiving portion (154). Here, the first receiving portion (154) and the second receiving portion (158) are fitted and coupled within the upper external housing (19), as shown in Fig. 7.

[0080] The above first receiving portion (154) is formed in a cylindrical shape inside the lower support housing (13), the upper inner housing (16), and the upper outer housing (19), as shown in FIG. 7, and although not shown in the drawing, the stem of the valve is inserted into the inside of the first receiving portion (154) from the outside of the assembly housing (20).

[0081] The first receiving portion (154) is, as shown in FIGS. 7 and 9, rotatably fixed to at least one of the lower support housing (13), the upper internal housing (16), and the upper external housing (19), and has a gear member (145) that protrudes two in the shape of gear teeth from the outer surface of the first receiving portion (154) in the upper internal housing (16) and engages with the fourth gear (129) of the gear column (130).

[0082] When inserting the stem of the valve into the inside of the first receiving portion (154), the second receiving portion (158) is formed in a cylindrical shape inside the upper outer housing (19), as shown in FIG. 7, and although not shown in the drawing, the handle of the valve is inserted into the inside of the second receiving portion (158) from the outside of the assembly housing (20) to connect the stem and the handle of the valve.

[0083] The second receiving portion (158) is not shown in the drawing, but is coupled with the handle when the valve handle is inserted into the inside of the second receiving portion (158), and when the handle is rotated, as shown in FIG. 1 and FIGS. 8 to 10, the first receiving portion (154) and the gear column (130) are sequentially linked to the rotation (R1) of the second receiving portion (158) to rotate (R2, R3) the first rotating body (64) and the second rotating body (68) of the individual indicator (74 or 78) in the two indicators (74, 78).

Claims

1. An assembly housing surrounded by a square surface on the outermost perimeter; Two indicators positioned near one of the square faces of the assembly housing and protruding from the inside of the assembly housing toward the outside of the assembly housing; An adjusting member that is exposed from the one side of the assembly housing and spirally engages the two indicators through the one side of the assembly housing; A gear column positioned inside the assembly housing and gear-engaged with the two indicators on opposite sides of the one side of the assembly housing based on the two indicators; and A receiving portion positioned around the gear column and penetrating the assembly housing to engage the gear with the gear column, The above-mentioned receiving part is, A valve interlock structure that rotates together with the two indicators and the gear column when the adjustment part is separated from the two indicators.

2. In paragraph 1, The above assembly housing, A lower support housing, and an upper inner housing that is coupled to the lower support housing through spiral members on the lower support housing, and an upper outer housing that is coupled to the lower support housing through spiral members on the lower support housing and surrounds the upper inner housing, A valve interlock structure in which the lower support housing, the upper inner housing, and the upper outer housing surround the receiving portion and fix the receiving portion in rotation.

3. In paragraph 2, The above lower support housing, A valve interlock structure made of a square plate and fitted along the traces of the upper inner and outer housings to the upper inner and outer housings.

4. In paragraph 2, The upper internal and external housings are: A valve interlock structure that is opened near the lower support housing and partially closed away from the lower support housing.

5. In paragraph 2, The above upper built-in housing, A valve interlock structure comprising a semi-elliptical box, which surrounds the gear column together with the lower support housing and fixes the gear column in rotation.

6. In paragraph 2, The above upper outer housing, A square box is formed at the bottom of the upper outer housing to surround the upper inner housing, A valve interlock structure formed in a cylinder near the receiving portion at the upper portion of the upper outer housing and surrounding the receiving portion.

7. In paragraph 2, The above upper outer housing, The above adjustment unit is coupled with the above lower floor housing and the above upper built-in housing, A valve interlock structure that rotates and fixes the two indicators together with the lower bottom housing and the upper built-in housing.

8. In paragraph 2, The above two indicators are, Surrounded by the lower support housing, the upper inner housing, and the upper outer housing, In the individual indicator, a first gear, a first coupling column piece, a second coupling column piece, a second gear, a rotational passage, a second indicator column piece, and a first indicator column piece are sequentially positioned from the lower side toward the upper side of the rotary shaft and surround the rotary shaft, A valve interlock structure that engages the gear column and the gear through the first gear and the second gear in the individual indicator.

9. In paragraph 8, The above rotating rod is rotatably fixed to the lower support housing, the upper internal housing, and the upper external housing, and penetrates the upper internal housing and the upper external housing, The first gear, the first coupling column piece, the second coupling column piece, and the second gear are positioned between the lower support housing and the upper built-in housing, The above rotating cylinder penetrates the upper inner housing and the upper outer housing, The above second indicator pillar piece and the above first indicator pillar piece are a valve interlock structure located on the upper housing.

10. In paragraph 8, The above rotary bar is, A first rotating body is formed together with the first gear, the first coupling column piece, and the first display column piece, The above first gear, When the first gear is viewed in cross section, it is positioned below the first coupling column piece on the rotating shaft and is integrally formed with the rotating shaft and the first indicator column piece. When the first gear is viewed in cross section, it extends from below the first coupling column piece and is positioned between the first coupling column piece and the rotating rod, The above first combined column piece is, Surrounding the first gear and rotating relative to the first gear, A valve interlock structure having a spiral connection with the above adjustment unit.

11. In paragraph 8, The above rotating cylinder, A second rotating body is formed by surrounding the above rotating shaft and together with the second coupling column piece, the second gear, and the second indicator column piece, The above second gear, When the second gear is viewed externally, it is positioned on the second coupling column piece on the rotating cylinder and is integrally formed with the rotating cylinder and the second display column piece. When the second gear is viewed in cross section, it surrounds the rotating cylinder together with the second coupling column piece, the second gear, and the second indicator column piece, The above second combined column piece is, Rotates relative to the above-mentioned rotating cylinder, A valve interlock structure having a spiral connection with the above adjustment unit.

12. In paragraph 8, The above first gear, A valve interlock structure having a smaller number of teeth than the second gear.

13. In paragraph 8, The above first display pillar piece and the above second display pillar piece, The first display pillar piece has a first alignment line on the outer surface thereof and the second display pillar piece has a second alignment line on the outer surface thereof. A valve interlock structure that displays the open or closed state of the valve to the outside when the first alignment line of the first indicator pillar piece and the second alignment line of the second indicator pillar piece on the upper outer housing are aligned when viewed from the above-mentioned side of the assembly housing.

14. In paragraph 8, The above adjustment department, A valve interlock structure comprising a protective cover inserted into the upper inner housing and the upper outer housing, a first fixing member that is spirally connected to the first coupling pillar piece, a second fixing member that is spirally connected to the second coupling pillar piece, and a third fixing member that is spirally connected to the lower support housing and the upper inner housing to secure the protective cover to the upper inner housing and the upper outer housing.

15. In paragraph 14, The above protective cover, A valve interlock structure that closes the openings of the upper inner housing and the upper outer housing to block external influences on the coupling relationship between the first coupling pillar piece and the first fixing member, and the coupling state between the second coupling pillar piece and the second fixing member, inside the upper inner housing.

16. In paragraph 14, The first and second fixed members are, When viewed before closing the one side of the assembly housing with the protective cover, when the first alignment line of the first indicator pillar piece and the second alignment line of the second indicator pillar piece do not coincide, the first coupling pillar piece and the second coupling pillar piece are spirally coupled while partially extending along the guide passage from the upper built-in housing toward the first coupling pillar piece and the second coupling pillar piece inside the upper built-in housing, or A valve interlock structure that, when viewed from the above-mentioned side of the assembly housing, when the first alignment line of the first indicator pillar piece and the second alignment line of the second indicator pillar piece are aligned, leaves the guide passage and spirally engages the first coupling pillar piece and the second coupling pillar piece, and fixes the two indicators to the assembly housing while contacting the first gear and the rotating cylinder.

17. In paragraph 8, In the above two indicators, a rotation stopper is further included that is coupled to the first indicator pillar piece and the second indicator pillar piece of the individual indicator, The above rotation stopper, A valve interlock structure comprising a first rotation stopper that is detachable from the rotary shaft while being helically engaged with the first indicator pillar piece, and a second rotation stopper that is detachable from the rotary cylinder while being helically engaged with the second indicator pillar piece, depending on whether the first alignment line of the first indicator pillar piece and the second alignment line of the second indicator pillar piece are aligned when viewed from the one side of the assembly housing.

18. In paragraph 8, The above gear column, Surrounded by the lower support housing and the upper built-in housing, and positioned between the two indicators around the receiving portion, A rotary shaft that is rotatably fixed to the lower support housing and the upper built-in housing along the longitudinal direction of the receiving portion, a third gear that surrounds the rotary shaft at a lower portion of the rotary shaft and is integrally formed with the rotary shaft while engaging with the first gear of the individual indicator, and a fourth gear that surrounds the rotary shaft at an upper portion of the rotary shaft and is integrally formed with the rotary shaft while engaging with the second gear of the individual indicator, A valve interlock structure that engages the gear with the receiving portion through the fourth gear.

19. In paragraph 18, The above third gear is, A valve interlock structure having a larger number of teeth than the fourth gear.

20. In paragraph 18, The coupling relationship between the third gear and the first gear is: Having a gear ratio greater than the combination relationship between the above 4th gear and the above 2nd gear, A valve interlock structure that reduces the speed more than the engagement relationship between the fourth gear and the second gear.

21. In paragraph 18, The above-mentioned receiving part is, A first receiving portion located around the gear column and surrounded by the lower support housing, the upper inner housing, and the upper outer housing, and a second receiving portion coupled to the first receiving portion and surrounded by the upper outer housing, The above first receiving section and the above second receiving section, A valve interlock structure that fits and engages within the upper outer housing.

22. In paragraph 21, The above first receiving unit is, The lower support housing, the upper inner housing, and the upper outer housing are formed in a cylindrical shape inside, A valve interlock structure that inserts the stem of the valve into the interior of the first receiving portion from the exterior of the assembly housing.

23. In paragraph 21, The above first receiving unit is, Rotatably fixed to at least one of the lower support housing, the upper inner housing and the upper outer housing, A valve interlock structure having a gear member that protrudes in the shape of two gear teeth from the outer surface of the first receiving portion in the upper built-in housing and engages with the fourth gear of the gear column.

24. In paragraph 21, When inserting the stem of the valve into the inside of the first receiving portion, The above second receiving unit is, It is formed in a cylindrical shape inside the upper outer housing, A valve interlock structure that connects the stem of the valve and the handle by inserting the handle of the valve into the inside of the second receiving portion from the outside of the assembly housing.

25. In paragraph 21, The above second receiving unit is, When the handle of the valve is inserted into the inside of the second receiving portion, it is combined with the handle, A valve interlock structure that sequentially links the first receiving portion and the gear column to the rotation of the receiving portion when the handle is rotated, thereby rotating the first and second rotating bodies of the individual indicators in the two indicators.

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