Auto-lifting supporter that provides tilting function to support the structure

Abstract

An auto-lifting supporter is disclosed that provides a tilting function to support a structure. The auto-lifting supporter according to the present invention has the advantage of being able to easily adjust the height automatically using a power tool, and has the advantage of being able to provide a solid support even if the floor is not flat, because the outer clamp can be tilted in correspondence with the floor inclination angle (S1) even if the floor slab forms a floor inclination angle S1 with respect to the horizontal plane.

Description

Technology Field

[0001] The present invention relates to a supporter for supporting a structure, and more specifically, to an auto-lifting supporter that provides a tilting function to support a structure. Background Technology

[0002] Generally, a device used as a support to firmly hold structures such as slab formwork at a construction site is called a construction supporter.

[0003] These construction supports are manufactured using various structures or methods to facilitate convenient installation and removal, and to allow for height (length) adjustment according to the height of the structure.

[0004] Generally, the most widely used construction support is a construction pipe support that connects an inner pipe and an outer pipe made of steel to enable height adjustment, as described in Registered Utility Model No. 20-0291531.

[0005] To briefly examine the configuration of the above pipe supporter, it consists of an outer pipe installed on the bottom surface, an inner pipe fitted into the outer pipe to support an upper structure, a support nut that allows the outer pipe and the inner pipe to be connected while supporting each other and adjusting the height (length) of the outer pipe and the inner pipe, and a fixing pin that is fitted through the inner and outer pipes so that the support nut can be fixed at a predetermined height of the outer pipe.

[0006] In order for the support nut to be supported through the fixing pin, the outer pipe is provided with a threaded portion on its outer surface to which the support nut is coupled, and slit grooves are formed through both sides of the threaded portion along the longitudinal direction, and the inner pipe has fitting holes formed at predetermined intervals along the longitudinal direction of the inner pipe through which the fixing pin is inserted through the slit grooves.

[0007] When installing a pipe supporter with the above configuration, a fixing pin is inserted through the slit groove and the fitting hole, and while the fixing pin is supported on the upper surface of the support nut, the height of the inner pipe is displaced by tightening or loosening the support nut, thereby allowing the overall height (length) of the pipe supporter to be adjusted.

[0008] However, pipe supports based on conventional technology had the problem that the worker had to manually adjust the height. Prior art literature

[0009] Republic of Korea Registered Utility Model No. 20-0291531, Republic of Korea Published Patent No. 10-2017-0102763, Republic of Korea Registered Utility Model No. 20-0275103, Republic of Korea Published Patent No. 10-2012-0049687 The problem to be solved

[0010] The present invention was devised to solve the aforementioned conventional problems and aims to provide an auto-lifting supporter for supporting a structure that can automatically and conveniently adjust its height using an electric tool. means of solving the problem

[0011] The present invention comprises an auto-lifting supporter comprising: an outer pipe (100) arranged to extend vertically; an inner pipe (200) arranged inside the outer pipe (100) and moving along the longitudinal direction of the outer pipe (100); a lower supporter (300) supporting the lower end of the outer pipe (100); an upper supporter (400) supported on the upper end of the inner pipe (200); an outer clamp (500) connecting the outer pipe (100) and the lower supporter (300); an inner clamp (600) connecting the inner pipe (200) and the upper supporter (400); and a lifting assembly (700) arranged to penetrate the outer pipe (100) and receiving driving force from the outside to move the inner pipe (200) vertically. Provides

[0012] The lower supporter (300) may include a lower base (310) supported on the floor, a cylindrical lower cylinder (320) formed integrally with the lower base (310) and extending upward from the lower base (310), a lower supporter rib (330) connecting the side of the lower cylinder (320) and the upper surface of the lower base (310), and a lower supporter groove (325) formed concavely inwardly from the outer circumference of the lower cylinder (320) and forming mutual locking with the outer clamp (500) in the vertical direction.

[0013] The outer clamp (500) comprises an outer cylinder portion (550) formed in a semi-cylindrical shape, an outer cylinder groove (510) formed concavely outwardly from the inner circumference of the outer cylinder portion (550) and formed to surround the upper end of the lower cylinder (320), an outer support rim (520) disposed below the outer cylinder groove (510) and protruding inwardly from the lower end of the outer cylinder portion (550) in a radially inward direction and inserted into the lower support groove (325), an outer clamp catch portion (530) protruding inwardly from the inner circumference of the outer cylinder portion (550) in a radially inward direction and forming mutual catch with the outer circumference of the outer pipe (100) in the vertical direction, and a portion bent outwardly from the outer cylinder portion (550). It may include an outer cylinder connection part (540).

[0014] The height of the lower supporter home (325) can be formed to be greater than the thickness of the outer supporter rim (520).

[0015] The outer support rim (520) can be moved in the circumferential direction along the lower support groove (325), and the outer support rim (520) can be moved in the up and down direction within the lower support groove (325).

[0016] The outer clamp (500) may be positioned to tilt or rotate relative to the lower supporter (300). Effects of the invention

[0017] First, the auto-lifting supporter according to the present invention has the advantage of being able to easily adjust the height automatically using a power tool.

[0018] Second, the present invention has the advantage of being able to provide solid support even if the floor is not flat, because the outer clamp can be tilted in correspondence with the floor inclination angle (S1) even if the floor slab forms a floor inclination angle S1 with respect to the horizontal plane.

[0019] Third, the present invention has the advantage of being able to provide solid support even if the ceiling is not flat, because the inner clamp (600) can be tilted with respect to the ceiling angle of inclination (S2) even if the ceiling slab forms a ceiling angle of inclination S2 with respect to the horizontal plane.

[0020] Fourth, the present invention has the advantage that the outer clamp can be automatically tilted in correspondence with the floor inclination angle (S1) during the process of mounting the lower supporter on the floor slab.

[0021] Fifth, the present invention has the advantage that the inner clamp can be automatically tilted in correspondence with the ceiling inclination angle (S2) during the process of mounting the upper supporter on the ceiling slab.

[0022] Sixth, the present invention has the advantage of significantly reducing installation and removal times because it can easily provide driving force to the driving member through a power tool. Brief explanation of the drawing

[0023] FIG. 1 is a front view of an auto-lifting supporter according to a first embodiment of the present invention. Figure 2 is a cross-sectional view of Figure 1. Fig. 3 is a cross-sectional perspective view of Fig. 1. FIG. 4 is a partial perspective view of a lifting assembly according to a first embodiment of the present invention. Figure 5 is an example of the assembly of the lower supporter and outer pipe shown in Figure 4. Figure 6 is a partial enlarged view of Figure 5. FIG. 7 is an example diagram of the installation of an auto-lifting supporter according to the first embodiment of the present invention. Specific details for implementing the invention

[0024] The present invention is susceptible to various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Similar reference numerals have been used for similar components in the description of each drawing.

[0025] Terms such as first, second, A, B, etc., may be used to describe various components, but said components shall not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of a plurality of related described items or any of a plurality of related described items.

[0026] 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.

[0027] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to specify the presence 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.

[0028] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0029] In this document, "configured to" may be used interchangeably with, depending on the context, for example, in hardware or software, "suitable for," "capable of," "modified to," "made to," "capable of," or "designed to." In some situations, the expression "device configured to" may mean that the device is "capable of" doing something together with other devices or components.

[0030] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. In order to facilitate an overall understanding of the present invention, the same reference numerals are used for identical components in the drawings, and redundant descriptions of identical components are omitted.

[0032] FIG. 1 is a front view of an auto-lifting supporter according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of FIG. 1, FIG. 3 is an example of operation of FIG. 1, FIG. 4 is a partial perspective view of a lifting assembly according to a first embodiment of the present invention, FIG. 5 is an example of assembly of a lower supporter and an outer pipe shown in FIG. 4, FIG. 6 is a partial enlarged view of FIG. 5, and FIG. 7 is an example of installation of an auto-lifting supporter according to a first embodiment of the present invention.

[0033] The auto-lifting supporter according to the present embodiment comprises an outer pipe (100) arranged to be extended in the vertical direction, an inner pipe (200) arranged inside the outer pipe (100) and moving along the longitudinal direction of the outer pipe (100), a lower supporter (300) supporting the lower end of the outer pipe (100), an upper supporter (400) supported at the upper end of the inner pipe (200), an outer clamp (500) connecting the outer pipe (100) and the lower supporter (300), an inner clamp (600) connecting the inner pipe (200) and the upper supporter (400), and a lifting assembly (700) arranged to penetrate the outer pipe (100) and receiving driving force from the outside to move the inner pipe (200) in the vertical direction. Includes.

[0034] The above outer pipe (100) is formed in a cylindrical shape overall, and a virtual axis center is formed that passes through the center of the circle in the vertical direction.

[0035] The above outer pipe (100) is composed of a first outer pipe and a second outer pipe, and the first outer pipe and the second outer pipe are in the shape of semi-cylindrical. The first outer pipe and the second outer pipe are joined in a cylindrical shape through a fastening member.

[0036] Since the configuration of the first outer pipe and the second outer pipe is the same, they are described as the outer pipe (100).

[0037] The outer pipe (100) comprises an outer cylinder portion (110) formed in a semi-cylindrical shape, an outer clamp portion (120) that extends further downward from the bottom of the outer cylinder portion (110) and is in close contact with the inner surface of the outer clamp (500), an outer inner catch portion (not shown) that protrudes radially inward from the inner surface of the outer cylinder portion (110) and optionally forms a mutual catch with the inner pipe (200), and an outer outer catch portion (140) that protrudes radially outward from the outer surface of the outer clamp portion (120) and forms a mutual catch with the outer clamp (500) in the up and down direction.

[0038] The outer cylinder part (110) is formed in a semi-cylindrical shape.

[0039] The outer clamp portion (120) is formed continuously with the inner surface of the outer cylinder portion (110). The outer clamp portion (120) is formed in a cylindrical shape.

[0040] The thickness of the outer clamp portion (120) is formed to be thinner than the thickness of the outer cylinder portion (110).

[0041] The outer external catch portion (140) is formed in a circumferential direction on the outer surface of the outer clamp portion (120) and is formed to protrude radially outward.

[0042] When the outer pipe (100) is rotated by a predetermined angle with respect to the axis center, the outer external catch (140) can form a mutual catch with the outer clamp (500) in the vertical direction.

[0043] The inner pipe (200) is composed of a first inner pipe and a second inner pipe, and the first inner pipe and the second inner pipe are in the shape of semi-cylindrical. The first inner pipe and the second inner pipe are joined in a cylindrical shape through a fastening member.

[0044] The outer diameter of the inner pipe (200) is formed to be smaller than the inner diameter of the outer pipe (100). The axis center is positioned to pass through the planar center of the inner pipe (200) in the vertical direction.

[0045] The inner pipe (200) comprises an inner cylinder portion (210) formed in a semi-cylindrical shape, an inner clamp portion (220) that extends further upward from the top of the inner cylinder portion (210) and is in close contact with the inner circumference of the inner clamp (600), a lifting catch portion (230) formed on the inner circumference of the inner cylinder portion (210) and formed a mutual catch in the vertical direction to which a part of the lifting assembly (700) (a lifter described later in this embodiment) is fitted in the circumference direction, and a lifting catch portion (230) that forms a mutual catch in the vertical direction, and an inner pipe catch portion (240) that protrudes radially outward from the outer circumference of the inner clamp portion (220) and forms a mutual catch in the vertical direction with the inner clamp (600) or the outer pipe (100).

[0046] The lifting locking part (230) includes a first lifting locking part (231) protruding radially outward from the inner circumference of the inner cylinder part (210), a second lifting locking part (232) protruding radially outward from the inner circumference of the inner cylinder part (210) and spaced apart from the first lifting locking part (231) in the vertical direction, and a lifting locking groove (233) formed between the first lifting locking part (231) and the second lifting locking part (232).

[0047] When viewed from the top view, the first lifting locking part (231) and the second lifting locking part (232) are formed in an arc shape, and the lifting locking groove (233) is formed between them.

[0048] In this embodiment, the structure of the lower supporter (300) and the upper supporter (400) is vertically symmetrical.

[0049] The lower supporter (300) comprises a lower base (310) supported on the floor, a cylindrical lower cylinder (320) formed integrally with the lower base (310) and extending upward from the lower base (310), and a lower supporter rib (330) connecting the side of the lower cylinder (320) and the upper surface of the lower base (310).

[0050] The lower support rib (330) is formed to protrude upward from the upper side of the lower base (310).

[0051] In this embodiment, the lower supporter (300) further includes a lower supporter groove (325) that is formed concavely inwardly in the radial direction from the outer surface of the lower cylinder (320) and forms a mutual locking with the outer clamp (500) in the vertical direction.

[0052] In this embodiment, the lower support groove (325) is formed in a ring shape along the outer surface of the lower cylinder (320). The outer clamp (500) can be rotated along the outer surface of the lower cylinder (320) while being engaged with the lower support groove (325).

[0053] In this embodiment, the lower cylinder (320) includes a first lower cylinder part (321) connected to the lower base (310) side with respect to the lower supporter groove (325), and a second lower cylinder part (322) positioned on the opposite side of the first lower cylinder part (321).

[0054] The lower support rib (330) is connected to the first lower cylinder part (321).

[0055] In this embodiment, the second lower cylinder part (322) forms a curved or inclined surface, and through this, can be rotated or tilted relative to the outer clamp (500) at a predetermined angle.

[0056] The angle between non-parallel slabs can be compensated for through relative rotation or tilting of the outer clamp (500).

[0057] In this embodiment, the slab on which the lower supporter (300) is supported is called the floor slab, and the slab on which the upper supporter (400) is supported is called the ceiling slab.

[0058] That is, when the lower supporter (300) is supported on the floor slab, the outer clamp (500) can be tilted at a predetermined angle to correspond to an uneven floor, thereby supporting the outer pipe (100) more firmly.

[0059] In this embodiment, the outer surface of the second lower cylinder part (322) forms a lower inclined surface (322a).

[0060] The lower inclined surface (322a) has its lower end positioned radially outward and its upper end positioned close to the axis center. Due to the lower inclined surface (322a), the second lower cylinder part (322) is formed in a truncated cone shape.

[0061] The lower inclined surface (322a) may be formed as a curved or flat surface and may guide the rotation or tilting of the outer clamp (500).

[0062] The lower supporter (300) further includes a plurality of lower ribs (360) disposed on the inner surface of the second lower cylinder (320). The lower ribs (360) are formed to extend long in the vertical direction.

[0063] Multiple lower ribs (360) are arranged radially with respect to the axis center.

[0064] The rigidity of the lower cylinder (320) can be improved through the plurality of lower ribs (360) above.

[0065] The above outer clamp (500) includes a first outer clamp (501) and a second outer clamp (502).

[0066] The first outer clamp (501) and the second outer clamp (502) are each formed in a semi-cylindrical shape, and when combined, the overall shape is formed in a cylindrical shape. The first outer clamp (501) and the second outer clamp (502) are formed symmetrically.

[0067] To explain the structure of the first outer clamp (501) and the second outer clamp (502) above, they are collectively referred to as the outer clamp (500). If it is necessary to distinguish the components of the first outer clamp (501) and the second outer clamp (502), they are distinguished by adding the prefix "first" or "second". This applies equally to other components.

[0068] The outer clamp (500) comprises an outer cylinder portion (550) formed in a semi-cylindrical shape, an outer cylinder groove (510) formed concavely outwardly in the radial direction from the inner circumference of the outer cylinder portion (550) and formed to surround the second lower cylinder portion (322), an outer support rim (520) disposed below the outer cylinder groove (510) and protruding inwardly in the radial direction from the bottom of the outer cylinder portion (550) to be inserted into the lower support groove (325), an outer clamp catch portion (530) protruding inwardly in the radial direction from the inner circumference of the outer cylinder portion (550) and forming mutual catch with the outer circumference of the outer pipe (100) in the vertical direction, and a portion bent outwardly in the radial direction from the outer cylinder portion (550). It includes an outer cylinder connection part (540).

[0069] The outer clamp catch portion (530) includes a first outer clamp catch portion (531) protruding radially inward from the inner circumference of the outer cylinder portion (550), a second outer clamp catch portion (532) protruding radially outward from the inner circumference of the outer cylinder portion (550) and spaced apart in the vertical direction from the first outer clamp catch portion (531), and an outer clamp catch groove (533) formed between the first outer clamp catch portion (531) and the second outer clamp catch portion (532).

[0070] The first outer clamp catch portion (531) and the second outer clamp catch portion (532) are spaced apart in the vertical direction. When the outer pipe (100) or the outer clamp (500) is rotated, the outer outer catch portion (140) of the outer pipe (100) can be inserted into the outer clamp catch groove (533), and the outer pipe (100) and the outer clamp (500) can form mutual catch in the vertical direction.

[0071] The outer cylinder groove (510) is formed concavely outwardly in the radial direction from the inner circumference of the outer cylinder part (550) and corresponds to the shape of the second lower cylinder part (322).

[0072] The outer cylinder groove (510) corresponds to the lower inclined surface (322a). That is, the upper end of the outer cylinder groove (510) is connected to the inner circumference of the outer cylinder part (550), and the lower end is positioned radially outward from the upper end.

[0073] When viewed from the bottom view, the outer support rim (520) is formed in the shape of a half ring.

[0074] The outer support rim (520) is inserted into the lower support groove (325) and can be rotated along the lower support groove (325).

[0075] The height of the lower supporter home (325) is formed to be greater than the thickness of the outer supporter rim (520), thereby securing a clearance that allows the outer clamp (500) to tilt or rotate.

[0076] The outer support rim (520) can be moved in the circumferential direction along the lower support groove (325), and the outer support rim (520) can be moved in the up and down direction within the lower support groove (325).

[0077] Even if the outer clamp (500) is tilted or rotated, the outer cylinder groove (510) can be supported on the second lower cylinder part (322).

[0078] The outer cylinder fastening part (540) includes a one-sided outer fastening part that protrudes radially outward from one end of the outer cylinder part (550), and a other-sided outer fastening part that protrudes radially outward from the other end of the outer cylinder part (550).

[0079] The first outer cylinder fastening part includes a first one-sided outer fastening part protruding radially outward from one end of the first outer cylinder part, and a first other-sided outer fastening part protruding radially outward from the other end of the first outer cylinder part.

[0080] The second outer cylinder fastening part includes a second one-sided outer fastening part protruding radially outward from one end of the second outer cylinder part, and a second other-sided outer fastening part protruding radially outward from the other end of the second outer cylinder part.

[0081] After the first outer fastening part and the second outer fastening part are in close contact facing each other, and the first outer fastening part and the second outer fastening part are in close contact facing each other, the first outer clamp and the second outer clamp can be fastened and assembled through a fastening member.

[0082] A fastening hole is formed in a line connecting the first outer fastening part and the second outer fastening part, respectively, and a fastening hole is also formed in a line connecting the first outer fastening part and the second outer fastening part, respectively.

[0083] In this embodiment, the outer cylinder part (550) further includes an outer opening (555) for assembling the lifting assembly (700).

[0084] In this embodiment, the outer opening (555) is formed in either the first outer clamp (501) or the second outer clamp (502), and the outer clamp catch (530) is formed in the other one.

[0085] The outer opening (555) is formed to penetrate the outer cylinder part (550) in a radial direction. The outer external catch part (140) can be exposed to the outside through the outer opening (555), and a worker can check the location of the outer external catch part (140) from the outside.

[0086] The above lifting assembly (700) includes a driving member (710) that is positioned to penetrate the outer clamp (500) and the outer pipe (100) and rotates by receiving an external driving force, a lifting rod (750) that is positioned vertically within the outer pipe (100), a lifter (770) that is positioned to penetrate the lifting rod (750), engages with the lifting rod (750), and moves vertically along the lifting rod (750) when the lifting rod (750) rotates, and a gearbox (720) that connects the lower end of the lifting rod (750) and the inner end of the driving member (710) and converts the rotational force of the driving member (710) by 90 degrees to provide to the lifting rod (750).

[0087] In this embodiment, the driving member (710) receives driving force from the power tool (1). To this end, the driving member (710) is formed in the shape of a bolt that can be easily assembled with the power tool (1).

[0088] The above driving member (710) is positioned to penetrate the outer clamp (500) and the outer pipe (100).

[0089] An inner driving member hole (not shown) through which the driving member (710) passes is formed in the outer clamp portion (120). The driving member (710) is inserted into the inner driving member hole through the outer opening (555).

[0090] When viewed from the back, the outer opening (555) is formed in a rectangular shape.

[0091] Since the outer opening (555) is formed widely, there is a feature that the inner driving member hole can remain exposed in the outer opening (555) even when the outer clamp (500) and the outer pipe (100) are rotated at a predetermined angle for assembly.

[0092] If the above outer opening (555) is not formed, an outer clamp hole (not shown) corresponding to the inner driving member hole must be formed in the outer clamp (500).

[0093] The head of the above-mentioned driving member (710) is formed as a hexagonal or octagonal head of common standard that can be coupled to the tool of a power tool.

[0094] The inner end of the driving member (710) is inserted into the side of the gearbox (720) and assembled. Two bevel gears inside the gearbox (720) mesh, one is connected to the driving member (710), and the other is connected to the lower end of the lifting rod (750).

[0095] Therefore, the lifting rod (750) can be rotated in place according to the amount of rotation of the driving member (710).

[0096] The above lifting rod (750) is rod-shaped, and spiral ball screw threads are formed on the outer surface.

[0097] The above lifting rod (750) can be formed in the shape of a ball screw.

[0098] The lifting assembly (700) may further include a screw housing (760) that surrounds the outer surface of the lifting rod (750), and a ball bearing (not shown) disposed inside the screw housing (760) and moving along the ball screw of the lifting rod (750).

[0099] The screw housing (760) is coupled to penetrate the lifter (770) in the vertical direction. Ball screw threads are also formed on the inner surface of the screw housing (760) so that the ball bearing can move.

[0100] The above lifter (770) includes a lifter body (775) into which the screw housing (760) is inserted and coupled in the vertical direction, and a lifter catch portion that is positioned to protrude radially outward from the lifter body (775) and forms a mutual catch with respect to the vertical direction with respect to the inner surface of the outer pipe (100).

[0101] A body hole (not shown) is formed that penetrates the above lifter body (775) in the vertical direction, and the screw housing (760) is inserted into the body hole and assembled.

[0102] The lifter (770) assembled with the screw housing (760) does not rotate and moves up and down together with the screw housing (760).

[0103] The lifting rod (750) is positioned at the axis center and rotates horizontally with respect to the axis center.

[0104] The above-mentioned axis center is positioned to penetrate the above-mentioned body hole in the vertical direction.

[0105] The above lifter catch portion is arranged in multiple numbers, and in this embodiment, four are arranged.

[0106] A plurality of lifter catches include a first lifter catch (751), a second lifter catch (752), a third lifter catch (753), and a fourth lifter catch (754) arranged radially with respect to the lifting rod (750).

[0107] When viewed from the top view, the first lifter catch (751), the second lifter catch (752), the third lifter catch (753), and the fourth lifter catch (754) are arranged at equal intervals of 90 degrees around the lifting rod (750).

[0108] The axis center is positioned to penetrate the planar center of the above lifting rod (750).

[0109] At least two of the first lifter catch portion (751), the second lifter catch portion (752), the third lifter catch portion (753), or the fourth lifter catch portion (754) are fitted and coupled to the lifting catch portion (230). To this end, the lifting catch portion (230) is arranged at least two locations along the inner circumferential surface of the outer pipe (100), and a plurality of lifting catch portions (230) are spaced apart in the circumferential direction.

[0110] In this embodiment, the lifting locking parts (230) are spaced apart more widely than the width of the first lifter locking part (751), the second lifter locking part (752), the third lifter locking part (753), and the fourth lifter locking part (754).

[0111] The first lifter catch portion (751), the second lifter catch portion (752), the third lifter catch portion (753), or the fourth lifter catch portion (754) is inserted horizontally into the lifting catch groove (233), and when moving up and down, it forms a mutual catch with the first lifting catch portion (231) and the second lifting catch portion (232).

[0112] Therefore, when the lifter (770) moves in a straight line through the rotation of the lifting rod (750), the inner pipe (200) connected to the lifter (770) can be moved in an up-and-down direction.

[0113] The upper supporter (400) is formed vertically symmetrically with respect to the lower supporter (300).

[0114] The upper supporter (400) comprises an upper base (410) supported by a ceiling structure, a cylindrical upper cylinder (420) formed integrally with the upper base (410) and extending downward from the upper base (410), and an upper supporter rib (430) connecting the side of the upper cylinder (420) and the bottom surface of the upper base (410).

[0115] In this embodiment, the upper supporter (400) is formed concavely inwardly in the radial direction from the outer surface of the upper cylinder (420) and further includes an upper supporter groove (not shown) that forms mutual engagement with the inner clamp (600) in the vertical direction.

[0116] In this embodiment, the upper supporter groove is formed in a ring shape along the outer surface of the upper cylinder (420). The inner clamp (600) can be rotated along the outer surface of the upper cylinder (420) while being engaged with the upper supporter groove (425).

[0117] In this embodiment, the upper cylinder (420) includes a first upper cylinder part connected to the upper base (410) side based on the upper supporter groove, and a second upper cylinder part positioned on the opposite side of the first upper cylinder part.

[0118] In this embodiment, the second upper cylinder portion forms a curved or inclined surface, and through this, can be rotated or tilted relative to the inner clamp (600) at a predetermined angle.

[0119] The angle between non-parallel slabs can be compensated for through relative rotation or tilting of the inner clamp (600).

[0120] The inner clamp (600) is formed vertically symmetrically with respect to the outer clamp (500).

[0121] The inner clamp (600) includes a first inner clamp and a second inner clamp.

[0122] The inner clamp (600) comprises an inner cylinder portion (650) formed in a semi-cylindrical shape, an inner cylinder groove (610) formed concavely outwardly from the inner circumference of the inner cylinder portion (650) and formed to surround the second upper cylinder portion, an inner support rim (620) disposed below the inner cylinder groove (610) and protruding inwardly from the bottom of the inner cylinder portion (650) in a radial direction and inserted into the lower support groove (325), an inner clamp catch portion (not shown) protruding inwardly from the inner circumference of the inner cylinder portion (650) in a radial direction and forming a mutual catch with respect to the upper and lower directions with respect to the outer circumference of the inner pipe (200), and a portion bent outwardly in a radial direction from the inner cylinder portion (650). It includes an inner cylinder connection part (640).

[0123] The inner cylinder portion (650) further includes an inner opening (655) for assembling the lifting assembly (700). An inner driving member hole (not shown) through which the driving member (710) passes may be further formed in the inner clamp portion (220).

[0124] Although not illustrated in this embodiment, a lifting assembly (700) can be installed inside the inner pipe (200) and configured to lift the outer pipe (100) in the up and down direction.

[0125] Referring to FIG. 7, even if the floor slab forms a floor inclination angle of S1 with respect to the horizontal plane, the outer clamp (500) can be tilted in correspondence with the floor inclination angle (S1), and even if the ceiling slab forms a ceiling inclination angle of S2 with respect to the horizontal plane, the inner clamp (600) can be tilted in correspondence with the ceiling inclination angle (S2), so the outer pipe (100) and the inner pipe (200) can be firmly supported on the floor slab and the ceiling slab, respectively.

[0126] In the process of mounting the above lower supporter (300) on the floor slab, the above outer clamp (500) can be tilted in correspondence with the floor inclination angle (S1).

[0127] In addition, when the lifting assembly (700) is operated to bring the upper supporter (400) into contact with the ceiling slab, the inner clamp (600) can be tilted with respect to the ceiling inclination angle (S2) during the process of bringing the upper supporter (400) into contact with the ceiling slab, so that a solid support force can be provided even if the ceiling slab and floor slab are not flat, and there is a feature that prevents bending deformation from occurring in the outer pipe (100) and inner pipe (200).

[0128] In addition, since the lifting assembly (700) can be easily operated using an electric tool, it has the feature of significantly reducing installation and removal times.

[0129] Although specific embodiments have been described in the detailed description of the present invention, it is understood that various modifications are possible within the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims set forth below as well as equivalents thereof. Explanation of the symbols

[0131] 100 : Outer pipe 200 : Inner pipe 300 : LoSupporter 400 : Upper supporter 500 : Outer clamp 600 : Inner Clamp 700 : Elevator Assembly

Claims

Claim 1 The apparatus comprises an outer pipe (100) arranged to extend vertically, an inner pipe (200) arranged inside the outer pipe (100) and moving along the length direction of the outer pipe (100), a lower supporter (300) supporting the lower end of the outer pipe (100), an upper supporter (400) supported on the upper end of the inner pipe (200), an outer clamp (500) connecting the outer pipe (100) and the lower supporter (300), an inner clamp (600) connecting the inner pipe (200) and the upper supporter (400), and a lifting assembly (700) arranged to penetrate the outer pipe (100) and receiving driving force from the outside to move the inner pipe (200) vertically. The lower supporter (300) comprises a lower base (310) supported on the floor, a cylindrical lower cylinder (320) formed integrally with the lower base (310) and extending upward from the lower base (310), a lower supporter rib (330) connecting the side of the lower cylinder (320) and the upper surface of the lower base (310), and a lower supporter groove (325) formed concavely inwardly in the radial direction from the outer circumference of the lower cylinder (320) and forming mutual locking with the outer clamp (500) in the vertical direction, and the outer clamp (500) comprises an outer cylinder part (550) formed in a semi-cylindrical shape, and a lower supporter groove (325) formed concavely outwardly in the radial direction from the inner circumference of the outer cylinder part (550). An outer cylinder groove (510) formed to surround the upper part of a lower cylinder (320), an outer support rim (520) disposed on the lower side of the outer cylinder groove (510) and protruding radially inward from the lower end of the outer cylinder part (550) and inserted into the lower support groove (325), an outer clamp catch part (530) protruding radially inward from the inner circumference of the outer cylinder part (550) and forming mutual catch with the outer circumference of the outer pipe (100) in the vertical direction, andAn auto-lifting supporter comprising an outer cylinder fastening part (540) that is bent radially outward from the outer cylinder part (550), wherein the height of the lower supporter groove (325) is formed to be greater than the thickness of the outer supporter rim (520), wherein the outer supporter rim (520) can move circumferentially along the lower supporter groove (325), wherein the outer supporter rim (520) can move up and down within the lower supporter groove (325), and wherein the outer clamp (500) is positioned to tilt or rotate angularly relative to the lower supporter (300).

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