Gang form lifting system with improved safety

Abstract

A gang form lifting system with improved safety is disclosed. According to the present disclosure, a gang form lifting system is provided comprising: a gang form cage in which a plurality of unit modules are arranged horizontally along the outer wall of a building, and each of the unit modules is independently raised and lowered; a guide rail that guides the gang form cage to be raised and lowered; a horizontal transfer rail installed horizontally on one side of the gang form cage to transport a hydraulic cylinder in a horizontal direction; a vertical transfer rail installed vertically on the side of the gang form cage to transport the hydraulic cylinder in a vertical direction; a pump stand fixedly installed on the guide rail and positioned outside the gang form cage, away from the workspace; a hydraulic pump fixed to the pump stand and supplying hydraulic pressure to the hydraulic cylinder; and a hydraulic cylinder, one side of which is positioned on the outer wall of the building and the other side of which is connected to the guide rail, which receives hydraulic pressure from the hydraulic pump to raise the gang form cage, and is formed to be detachable so that, after detachment, it can be transported between the unit modules via the horizontal transfer rail and the vertical transfer rail without being lifted directly by a worker.

Description

Technology Field

[0001] An embodiment of the present disclosure relates to a gang form lifting system with improved safety. Background Technology

[0002] A gang form climbing system is used when constructing buildings, such as high-rise apartments, where the floor plan of the upper and lower levels is identical. In this system, a cage equipped with scaffolding for installing and removing exterior wall formwork and for plastering and finishing (rendering) is integrally attached to the formwork (gang form). As the building is constructed sequentially upward, the cage is lifted and raised together with it. For convenience, this specification refers to the cage equipped with the gang form as a "gang form cage."

[0003] In the gang form lifting system, guide rails are installed along the reinforced concrete structure and are raised vertically by hydraulic cylinders. A gang form cage is attached to the guide rails. In such a gang form lifting system, the guide rails are raised by hydraulic cylinders while the guide shoes installed on the building's exterior walls are engaged, and consequently, the gang form cage attached to the guide rails is also raised.

[0004] Since the gang form cage is equipped with a work platform to form a workspace, workers install formwork (gang forms) and pour concrete within this workspace, thereby constructing the building. This gang form lifting system features improved work efficiency because it proceeds with construction by raising guide rails using hydraulic cylinders without the use of a crane.

[0005] However, when lifting gang form cages by detaching hydraulic cylinders from modules that have already been lifted and transferring them to modules to be lifted, rather than installing hydraulic cylinders on all multiple modules, there is the inconvenience and safety issue of workers having to detach, lift, and reattach the heavy hydraulic cylinders.

[0006] Furthermore, conventional gang form lifting systems lack safety devices to alert workers if unexpected problems occur during the lifting process, causing the gang form cage to tilt to one side. Additionally, if the heavy hydraulic pump is not securely fixed to the pump stand, issues such as movement or detachment due to vibration may occur during the lifting process.

[0007] The foregoing description is provided to aid in understanding the technical background of the present disclosure. Accordingly, the foregoing description should not be interpreted as reducing, limiting, or restricting the technical concept of the present disclosure. Furthermore, the contents described or suggested in the foregoing description do not necessarily constitute prior art. The foregoing description may include contents that do not constitute prior art. The problem to be solved

[0008] Some embodiments of the present disclosure may provide a formwork lifting system with enhanced safety, in which worker intervention is reduced and safety is improved during the process of removing and transferring the hydraulic cylinder.

[0009] In addition, some embodiments of the present disclosure may provide a gang form lifting system with enhanced safety that controls the tilt during the lifting process of the gang form cage and prevents safety accidents such as the flow and detachment of the hydraulic pump.

[0010] However, the technical problems that the embodiments of the present disclosure aim to solve are not necessarily limited to the technical problems mentioned above. Other technical problems not mentioned will be clearly understood by those skilled in the art to which the present disclosure pertains from other descriptions in the specification, such as the detailed description. means of solving the problem

[0011] According to one aspect of the present disclosure, a gang form lifting system may be provided, comprising: a gang form cage in which a plurality of unit modules are arranged horizontally along the outer wall of a building, and each of the unit modules is independently raised and lowered; a guide rail that guides the gang form cage to be raised and lowered; a horizontal transfer rail installed horizontally on one side of the gang form cage to transfer a hydraulic cylinder in a horizontal direction; a vertical transfer rail installed vertically on the side of the gang form cage to transfer the hydraulic cylinder in a vertical direction; a pump stand fixedly installed on the guide rail and positioned outside the gang form cage to be located away from the workspace; a hydraulic pump fixed to the pump stand and supplying hydraulic pressure to the hydraulic cylinder; and a hydraulic cylinder, one side of which is positioned on the outer wall of the building and the other side of which is connected to the guide rail, which receives hydraulic pressure from the hydraulic pump to raise the gang form cage, and is formed to be detachable so that, after being detached, it can be transferred between the unit modules via the horizontal transfer rail and the vertical transfer rail without being lifted directly by a worker. Effects of the invention

[0012] The gang form lifting system according to the embodiments of the present disclosure has the effect of reducing worker intervention and improving safety during the process of transporting the hydraulic cylinder after removal. Specifically, the hydraulic cylinder of the present disclosure, after being removed from the unit module where lifting is completed, is not transported by being lifted directly by a worker, but can be mounted on a vertical transport rail and a horizontal transport rail and transported by sliding.

[0013] In addition, the gang form lifting system according to the embodiments of the present disclosure is characterized by controlling the tilt during the lifting process of the gang form cage and preventing safety accidents such as movement or detachment of the hydraulic pump. Specifically, the safety monitoring unit of the present disclosure can prevent safety accidents by stopping the operation of the hydraulic pump when the gang form cage tilts excessively to one side during the lifting process. Meanwhile, the pump mounting bracket of the present disclosure can firmly fix the hydraulic pump to prevent the hydraulic pump from moving excessively or detaching during operation.

[0014] However, the technical effects obtainable through the embodiments of the present disclosure are not necessarily limited to the effects mentioned above. Other technical effects not mentioned will be clearly understood by those skilled in the art to which the present disclosure pertains from other descriptions in the specification, such as the detailed description. Brief explanation of the drawing

[0015] FIG. 1 is a schematic diagram of a formwork lifting system with improved safety according to one embodiment of the present disclosure. Figure 2 is an enlarged view of the gang form cage unit module shown in Figure 1. Figure 3 is a rear view of the gang form cage unit module shown in Figure 1. Figure 4 is an enlarged view of the horizontal transfer rail shown in Figure 1. Figure 5 is an enlarged view of the vertical transfer rail shown in Figure 1. Figure 6 is an enlarged view of the pump stand and hydraulic pump shown in Figure 1. Figure 7 is an operational diagram of a hydraulic cylinder being transported using the horizontal and vertical transfer rails shown in Figure 1. Specific details for implementing the invention

[0016] Embodiments of the present disclosure will be described below with reference to the drawings.

[0017] The following embodiments are provided to more faithfully and completely explain the technical concept of the present disclosure to those skilled in the art to which the present disclosure pertains. Accordingly, the technical concept of the present disclosure is not necessarily limited to the following embodiments. The present disclosure should be understood to broadly include various equivalents, substitutions, modifications, etc., that embody the technical concept to be described below.

[0018] The terms used in the following description are intended to describe specific embodiments more faithfully and completely in the same light as above. Accordingly, the terms used in the following description should not be interpreted to reduce, limit, or restrict the technical scope of the present disclosure.

[0019] In the following description, terms such as "first," "second," etc., may be used to refer to specific components to distinguish them from other components. However, such terms are used for clarity of explanation, and the technical concept of the present disclosure should not be interpreted as being limited by such terms.

[0020] In the following description, singular expressions may be interpreted to include the plural unless explicitly excluded by the context. Furthermore, in the following description, the expression "includes" means that the components, parts, actions, features, steps, numbers, etc. described in the description exist, and does not exclude the addition of one or more other components, parts, actions, features, steps, numbers, etc.

[0021] In the following description, terms related to direction, such as "beneath," "above," "lower," and "upper," may be used to facilitate understanding of the components. However, such terms are provided to facilitate understanding of the present disclosure based on various operations and usage conditions, and should not be interpreted to reduce, limit, or restrict the technical scope of the present disclosure. For example, terms related to direction may be determined from a relative perspective.

[0022] Meanwhile, in the drawings below, the depiction of each component may be exaggerated or omitted for the convenience and clarity of explanation.

[0023] FIG. 1 is a schematic diagram of a gang form lifting system with improved safety according to one embodiment of the present disclosure. FIG. 2 is an enlarged view of a gang form cage unit module shown in FIG. 1. FIG. 3 is a rear view of a gang form cage unit module shown in FIG. 1.

[0024] Referring to FIGS. 1 to 3, the gang form lifting system (100) of the present disclosure is positioned on the outer wall (W) of a building under construction to provide a workspace where a worker can move, and can be lifted sequentially as the building is constructed. In detail, the gang form lifting system (100) may have a plurality of gang form cages (110) arranged to surround the outer wall of the building. At this time, for convenience, each gang form cage (110) is referred to as a unit module.

[0025] In one embodiment, the gang form lifting system (100) may include a gang form cage (110). The gang form cage (110) has a plurality of unit modules arranged horizontally along the outer wall (W) of a building, and each unit module can be raised and lowered independently. At this time, the gang form cage (110) is formed as a frame structure, and plate-shaped members may be installed on some of the frames to allow a worker to move. Specifically, the gang form cage (110) may be fixed to a guide shoe (S) installed on the outer wall (W) of a building via a guide rail (120) to be described later.

[0026] More specifically, when the part of the gang form cage (110) placed on the outer wall (W) of the building is called the rear, and the part where the hydraulic pump (160) described later is placed is called the front, the gang form (10) can be placed in the rear part. That is, the gang form (10) is placed between the outer wall (W) of the building and the gang form cage (110), and may include an outer formwork that can be used as a formwork for pouring concrete. This gang form (10) is also formed of a plurality of unit modules, just like the gang form cage (110), and can be raised unit modules together with the gang form cage (110).

[0027] In some embodiments, the gang form cage (110) may include a horizontal frame (111) and a vertical frame (112). Multiple horizontal frames (111) may be spaced apart in the vertical and front-back directions. Multiple vertical frames (112) may be spaced apart in the left-right and front-back directions.

[0028] In some embodiments, the gang form cage (110) may include a scaffold (113). The scaffold (113) is used for a worker's workspace and may be installed in the space formed by some horizontal frames (111) and vertical frames (112). For example, the scaffold (113) may be formed as a plate-shaped member so that a worker can walk and perform work on the upper side of the scaffold (113).

[0029] Meanwhile, in one embodiment, the gang form lifting system (100) may include a guide rail (120). The guide rail (120) is installed on the rear of the gang form cage (110) to guide the gang form cage (110) to move up and down. The guide rail (120) is formed as a bar-shaped member extending in the longitudinal direction, so that the gang form cage (110) and the pump holder (150) described later are fixed and can be coupled to a guide shoe (S). For example, two or more guide rails (120) may be spaced apart per unit module of the gang form cage (110). Such a guide rail (120) can allow the gang form cage (110) to move up and down along a predetermined path.

[0030] Meanwhile, FIG. 4 is an enlarged view of the horizontal transfer rail shown in FIG. 1. Referring to FIG. 4, the gang form lifting system (100) may include a horizontal transfer rail (130). The horizontal transfer rail (130) is installed horizontally on one side of the gang form cage (110) to transfer a hydraulic cylinder (170) in a horizontal direction. For example, the horizontal transfer rail (130) may be used for horizontal movement during the process of transferring the hydraulic cylinder (170) after removing it to lift the unit module before lifting, after lifting the unit module of the gang form cage (110).

[0031] In some embodiments, the horizontal transfer rail (130) may include a horizontal beam (131). The horizontal beam (131) may be arranged horizontally to connect from one end of the gang form cage (110) to the other end. For example, the horizontal beam (131) may be formed as an H-beam.

[0032] In some embodiments, the horizontal transfer rail (130) may include a horizontal transfer carrier (132). The horizontal transfer carrier (132) may roll along the horizontal beam (131). For example, the horizontal transfer carrier (132) may be connected to the horizontal beam (131) at one end and slide, and may be positioned so that it is moved by a worker manually pushing it, or it may be moved automatically by connecting power.

[0033] In some embodiments, the horizontal transfer carrier (132) may include rollers (132a). The rollers (132a) may be in contact with the horizontal beam (131) and slide along the horizontal beam (131). For example, a pair of rollers (132a) may be positioned in contact with the flange of the horizontal beam (131) with the web between them. In this case, the number of rollers (132a) may be variably arranged.

[0034] In some embodiments, the horizontal transfer carrier (132) may include a frame (132b). The frame (132b) may be formed as a member connecting a pair of rollers (132a). For example, the frame (132b) is formed to connect a pair of rollers (132a) positioned with a web in between, and a hook connection (not shown) is positioned on one side so that a horizontal hanger (133) can be connected.

[0035] In some embodiments, the horizontal transfer rail (130) may include a horizontal hanger (133). The horizontal hanger (133) is positioned on one side of the frame (132b) and may be positioned to support a hydraulic cylinder (170). For example, the horizontal hanger (133) may be formed in the form of a hook or a fastening hook so that the hydraulic cylinder (170) can be attached or detached.

[0036] Meanwhile, FIG. 5 is an enlarged view of the vertical transfer rail shown in FIG. 1. Referring to FIG. 5, the gang form lifting system (100) may include a vertical transfer rail (140). The vertical transfer rail (140) is installed vertically on the side of the gang form cage (110) and can be used to transfer a hydraulic cylinder (170) in a vertical direction. For example, the vertical transfer rail (140) can be used for vertical movement during the process of transferring a hydraulic cylinder (170) that has been transferred via a horizontal transfer rail (130) downward.

[0037] In some embodiments, the vertical transfer rail (140) may include a rack (141). The rack (141) may be positioned vertically to connect from the portion where the horizontal transfer rail (130) is positioned to the bottom of the gang form cage (110). If necessary, the rack (141) may be positioned so that the gears face inward or outward from the gang form cage (110). A vertical transfer carrier (142) may be engaged with such a rack (141) to guide the movement of the vertical transfer carrier (142).

[0038] In some embodiments, the vertical transfer rail (140) may include a vertical transfer carrier (142). The vertical transfer carrier (142) may include a pinion (142a) that engages with the rack (141) and an operating handle (142c). The vertical transfer carrier (142) may be moved along the rack (141). For example, the vertical transfer carrier (142) may be moved by engaging with the rack (141), but may be positioned so that an operator manually operates the operating handle (142c) to move it, or it may be moved automatically by connecting power.

[0039] In some embodiments, the vertical transfer carrier (142) may include a pinion (142a). The pinion (142a) has a gear formed on its outer circumference to engage with the rack (141), so that it can be moved up and down while rotating along the rack (141).

[0040] In some embodiments, the vertical transfer carrier (142) may include a housing (142b). The housing (142b) is formed as a member having an internal space, so that a pinion (142a) may be placed inside. Specifically, the housing (142b) is positioned to penetrate the rack (141) and one side may be fitted along a longitudinal groove formed in the rack (141). That is, the housing (142b) is primarily fixed so that one side is fitted into the rack (141) to prevent it from detaching from the rack (141), and secondarily serves to support the pinion (142a) so that it does not detach from the rack (141) by connecting the rotation axis of the pinion (142a).

[0041] In some embodiments, the vertical transfer carrier (142) may include an operating handle (142c). The operating handle (142c) is positioned protruding from one side of the housing (142b) and may be connected to the rotation axis of the pinion (142a). That is, as the operating handle (142c) is rotated, the pinion (142a) may rotate in the forward or reverse direction and move up and down along the rack (141).

[0042] In some embodiments, the vertical transfer rail (140) may include a vertical hanger (143). The vertical hanger (143) is positioned on one side of the housing (142b) and may be positioned to support a hydraulic cylinder (170). The vertical hanger (143) may be formed in the form of a hook or a fastening hook so that the hydraulic cylinder (170) can be attached or detached.

[0043] Meanwhile, FIG. 6 is an enlarged view of the pump stand and hydraulic pump illustrated in FIG. 1. Referring to FIG. 6, the gang form lifting system (100) may include a pump stand (150). The pump stand (150) is fixedly installed on a guide rail (120) and may be installed outside the gang form cage (110) and positioned away from the workspace. A hydraulic pump (160), which will be described later, may be placed on the pump stand (150).

[0044] In detail, the pump holder (150) is formed as a space formed by a plurality of frames, and a plate-shaped member is arranged at the bottom so that a hydraulic pump (160) can be placed inside.

[0045] In some embodiments, the pump stand (150) may include an upper support (151) and a lower support (152). One side of the upper support (151) is fixed to the top of the pump stand (150), and the other side is fixed to a guide rail (120) to fix the pump stand (150). One side of the lower support (152) is fixed to the bottom of the pump stand (150), and the other side is fixed to a guide rail (120) to fix the pump stand (150). That is, the upper support (151) and the lower support (152) fix the pump stand (150) at the top and bottom, respectively, thereby stably fixing the pump stand (150).

[0046] In some embodiments, the pump holder (150) may include a guide block (153). The guide block (153) may be formed as a step on the inner bottom surface of the pump holder (150) to guide the seating position of the hydraulic pump (160). For example, although not specifically limited, the guide block (153) may be placed at the four corner portions of the hydraulic pump (160).

[0047] In some embodiments, the guide block (153) may include an inclined surface (153a). The inclined surface (153a) may be formed tapered on an inner surface of the guide block (153) corresponding to the edge of the hydraulic pump (160). Such an inclined surface (153a) may be positioned to guide the hydraulic pump (160) into the correct position during the process of seating the hydraulic pump (160) on the pump holder (150).

[0048] In some embodiments, the pump holder (150) may include a fixing pin (154). The fixing pin (154) is rotatably installed on both sides of the pump holder (150) and can be inserted into fixing bolts (161) placed on both sides of the hydraulic pump (160), which will be described later, and then secured with a nut (not shown). For example, the fixing pin (154) may be placed in an open part of the pump holder (150), that is, a part that contacts the gang form cage (110). The fixing pin (154) secures the hydraulic pump (160) once more, thereby preventing the hydraulic pump (160) from falling off due to vibration or impact.

[0049] Meanwhile, in one embodiment, the gang form lifting system (100) may include a hydraulic pump (160). The hydraulic pump (160) is fixed to a pump stand (150) and can supply hydraulic pressure to a hydraulic cylinder (170). In detail, the hydraulic pump (160) is connected to the hydraulic cylinder (170) through a hydraulic hose (not shown) to provide hydraulic pressure to the hydraulic cylinder (170).

[0050] In some embodiments, the hydraulic pump (160) may include a fixing bolt (161). The fixing bolt (161) may be positioned on one side of the hydraulic pump (160) and may be positioned at a location corresponding to a fixing pin (154) of the pump stand (150). Such a fixing bolt (161) may be fastened to the fixing pin (154) to secure the hydraulic pump (160) so that it does not detach from the pump stand (150).

[0051] In one embodiment, the gang form lifting system (100) may include a hydraulic cylinder (170). One side of the hydraulic cylinder (170) is positioned on the outer wall (W) of a building, and the other side is connected to a guide rail (120), so that hydraulic pressure is supplied from a hydraulic pump (160) to raise the gang form cage (110). Such a hydraulic cylinder (170) is formed to be detachable, so that after detachment, it can be transferred between unit modules via a horizontal transfer rail (130) and a vertical transfer rail (140) without being lifted directly by a worker.

[0052] Meanwhile, referring again to FIGS. 2 and 3, the gang form lifting system (100) may include a safety monitoring unit (180). The safety monitoring unit (180) can detect and provide guidance on changes in the inclination of the gang form cage (110). Specifically, if the inclination of the gang form cage (110) changes significantly more than a preset inclination, the safety monitoring unit (180) can notify the outside of danger and cause the hydraulic pump (160) to stop.

[0053] In some embodiments, the safety monitoring unit (180) may include a sensor unit (181). A plurality of sensor units (181) may be positioned at the top of the formwork cage (110) to detect changes in the inclination of the formwork cage (110). For example, a pair of sensor units (181) may be spaced apart at both ends of the top of the formwork cage (110) to detect the inclination of the formwork cage (110).

[0054] In some embodiments, the safety monitoring unit (180) may include an alarm device (182). The alarm device (182) can alert a worker to danger through sound and light when the sensor unit (181) detects that the inclination of the gang form cage (110) is greater than a preset inclination. For example, the preset inclination may be 5 degrees, and the alarm device (182) may be activated when the sensor unit (181) detects an inclination of 5 degrees or more.

[0055] In some embodiments, the safety monitoring unit (180) may include a wireless transmission unit (183). The wireless transmission unit (183) may transmit a signal to the control unit (184) of the hydraulic pump (160) to stop the hydraulic pump (160) when the sensor unit (181) detects that the inclination of the gang form cage (110) is greater than a preset inclination. For example, the preset inclination is 10 degrees, and when the sensor unit (181) detects an inclination of 10 degrees or more, the wireless transmission unit (183) transmits a signal to the control unit (184) to stop the operation of the hydraulic pump (160).

[0056] In some embodiments, the safety monitoring unit (180) may include a control unit (184). The control unit (184) is positioned at the top of the hydraulic pump (160) and can control the operation of the hydraulic pump (160) by receiving a signal from the wireless transmitter (183). For example, when the control unit (184) receives a signal to stop the operation of the hydraulic pump (160) from the wireless transmitter (183), it can stop the hydraulic pump (160).

[0057] Meanwhile, FIG. 7 is an operational state diagram of transporting a hydraulic cylinder using the horizontal transfer rail and vertical transfer rail illustrated in FIG. 1. Specifically, FIG. 7 (a) shows a state in which a hydraulic cylinder (170) is mounted between a guide rail (120) and a guide shoe, FIG. 7 (b) shows a state in which the hydraulic cylinder (170) is removed from the guide rail (120) and the guide shoe (S) and mounted on the horizontal transfer carrier (132) of the horizontal transfer rail (130). FIG. 7 (c) shows a state in which a hydraulic cylinder (170) is mounted on the vertical transfer carrier (142) of the vertical transfer rail (140), and FIG. 7 (d) shows a state in which the hydraulic cylinder (170) is lowered through the vertical transfer rail (140).

[0058] Referring to FIG. 7, the transfer process of the hydraulic cylinder (170) is described as follows.

[0059] First, as shown in FIG. 7(a), the hydraulic cylinder (170) is positioned mounted on the guide rail (120) and guide shoe (S) before and during the lifting process of the unit module. Next, as shown in FIG. 7(b), the hydraulic cylinder (170), removed from the guide rail (120) and guide shoe (S), can be transported laterally along the horizontal beam (131) while attached to the horizontal transport carrier (132) of the horizontal transport rail (130). At this time, the horizontal transport carrier (132) to which the hydraulic cylinder (170) is attached can be moved laterally in the direction in which the vertical transport rail (140) is positioned.

[0060] Afterwards, as shown in Fig. 7 (c), the hydraulic cylinder (170) is attached to the vertical transfer carrier (142) of the vertical transfer rail (140) and can be transferred longitudinally along the rack (141). At this time, the hydraulic cylinder (170) can be transferred downwards in order to use the hydraulic cylinder (170) for transferring unit modules that are placed at the bottom and have not yet been lifted.

[0061] Finally, as shown in Fig. 7 (d), the hydraulic cylinder (170) can be fully lowered and used to lift a unit module (not shown) placed at the bottom.

[0062] As described above, the gang form lifting system (100) according to the embodiments of the present disclosure has the effect of reducing worker intervention and improving safety during the process of removing and transporting the hydraulic cylinder (170). Specifically, the hydraulic cylinder (170) of the present disclosure is not lifted and transported directly by a worker after being removed from the unit module after lifting is completed, but can be mounted on a vertical transport rail (140) and a horizontal transport rail (130) and transported by sliding.

[0063] In addition, the gang form lifting system (100) according to the embodiments of the present disclosure has the feature of controlling the tilt during the lifting process of the gang form cage (110) and preventing safety accidents such as movement and detachment of the hydraulic pump (160). Specifically, the safety monitoring unit (180) of the present disclosure can prevent safety accidents by stopping the operation of the hydraulic pump (160) when the gang form cage (110) tilts excessively to one side during the lifting process. Meanwhile, the pump holder (150) of the present disclosure can firmly fix the hydraulic pump (160) to prevent the hydraulic pump (160) from moving excessively or detaching during operation.

[0064] Although embodiments of the present disclosure have been described above, those skilled in the art may modify or change the present disclosure in various ways by adding, changing, deleting, or adding components without departing from the technical spirit of the present disclosure as described in the claims, and such modifications or changes shall also be deemed to be included within the scope of the rights of the present disclosure. Explanation of the symbols

[0065] 100: Gang form lifting system 110: Gang form cage 111: Horizontal frame 112: Vertical frame 113: Footrest 120: Guide rail 130: Horizontal transfer rail 131: Horizontal beam 132: Horizontal transfer carrier 133: Horizontal hanger 140: Vertical transfer rail 141: Rack 142: Vertical transfer carrier 143: Vertical hanger 150: Pump stand 151: Upper support 152: Lower support 153: Guide block 154: Fixing pin 160: Hydraulic pump 161: Fixing bolt 170: Hydraulic cylinder 180: Safety Monitoring Unit 181: Sensor Unit 182: Alarm device 183: Wireless transmitter 184: Control unit

Claims

Claim 1 A gang form cage in which a plurality of unit modules are arranged horizontally along the exterior wall of a building, and each of the unit modules is independently raised and lowered; a guide rail that guides the gang form cage to be raised and lowered; a horizontal transfer rail installed horizontally on one side of the gang form cage to transport a hydraulic cylinder in a horizontal direction; a vertical transfer rail installed vertically on the side of the gang form cage to transport the hydraulic cylinder in a vertical direction; a pump stand fixedly installed on the guide rail and positioned outside the gang form cage, away from the workspace; and a hydraulic pump fixed to the pump stand and supplying hydraulic pressure to the hydraulic cylinder. A formwork lifting system comprising: a hydraulic cylinder, one side of which is positioned on the outer wall of the building and the other side of which is connected to the guide rail, which receives hydraulic pressure from the hydraulic pump to raise the formwork cage, and which is formed to be detachable so that, after detachment, it can be transferred between the unit modules via the horizontal transfer rail and the vertical transfer rail without being lifted directly by a worker; wherein the vertical transfer rail comprises: a rack positioned vertically to connect from the part where the horizontal transfer rail is positioned to the bottom of the formwork cage; a vertical transfer carrier including a pinion and an operating handle that engage with the rack; and a vertical hanger positioned on one side of the vertical transfer carrier on which the hydraulic cylinder is mounted. Claim 2 A gang form lifting system according to claim 1, comprising: a safety monitoring unit that detects and guides changes in the inclination of the gang form cage; wherein the safety monitoring unit comprises: a sensor unit that detects changes in inclination and is disposed in plurality at the top of the gang form cage; an alarm device that guides a worker to danger through sound and light when the sensor unit detects that the inclination of the gang form cage is tilted more than a preset inclination; a wireless transmission unit that transmits a signal to a control unit of the hydraulic pump to stop the hydraulic pump when the sensor unit detects that the inclination of the gang form cage is tilted more than a preset inclination; and a control unit that receives a signal from the wireless transmission unit and controls the operation of the hydraulic pump. Claim 3 A formwork lifting system according to claim 1, wherein the horizontal transfer rail comprises: a horizontal beam arranged horizontally to connect from one end of the formwork cage to the other end; a horizontal transfer carrier that rolls along the horizontal beam; and a horizontal hanger arranged on one side of the horizontal transfer carrier on which the hydraulic cylinder is mounted. Claim 4 delete Claim 5 A gang form lifting system according to claim 1, wherein the pump holder comprises: a guide block having a plurality of steps arranged on the inner bottom surface of the pump holder to guide the seating position of the hydraulic pump, and having an inner surface corresponding to the edge of the hydraulic pump formed to be tapered; and a fixing pin rotatably installed on both sides of the pump holder, which is fitted into fixing bolts arranged on both sides of the hydraulic pump and then fastened and secured with a nut.

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