KR20090110021A - Surporter for construction - Google Patents

Abstract

PURPOSE: A supporter for construction is provided to strongly support a slave because a second pipe is not easily moved to the direction receiving the load generated in a slave by pressure-fixing the outer circumference of the second pipe by forming pressure projections at the ratchet shape in an inner stopper. CONSTITUTION: A supporter(100) for construction capable of adjusting the length is composed of a first pipe(10), a second pipe(20), an inner stopper(110), and an outer stopper(120). The external diameter of the second pipe is smaller than the inside diameter of the first pipe. The inner stopper is combined to the second pipe, in which plural pressure projections(112) are formed in the inner circumference. A separation guide unit(113) protruded to the outside on the outer circumference is formed in the inner stopper. At least cut unit(115) is longitudinally formed in the inner stopper. The inner stopper is inserted into the outer stopper and is supported by a support projection(121). A hanging projection(127) is formed in the outer stopper to support the first pipe.

Description

Architectural supporter {SURPORTER FOR CONSTRUCTION}

The present invention relates to a building supporter, more specifically, it is possible to adjust the slab and precise spacing and to easily adjust the length, and to support the load more stably and firmly when supporting the load of the slab In addition, the present invention relates to a building supporter that can perform separation work more conveniently.

Building supporter is a term used by those skilled in the art, so-called dongbari, and is a tool used for supporting slabs of various buildings.

The slab refers to a flat plate in a broad sense and is also referred to as a bottom slab or a top plate. In a typical reinforced concrete structure, the surroundings are surrounded by beams and the load applied to the slab is shared by the surrounding beams. In a typical structure having a span of 4 to 5 m, the floor thickness is about 15 cm.

In addition, there are reinforced concrete slabs, which are called flat slabs, which are placed directly on pillars without support by beams. In particular, special reinforcing bars may be arranged so that the bending strength of the floor is maintained to a safe level.

For example, as schematically shown in Figure 1, after placing the slab of the building, it is used to arrange a plurality of building supporters (1) to support the lower portion of the poured slab until complete curing is achieved. .

Such a conventional building supporter has a variety of forms, from primitive forms such as wooden pillars to height-adjustable forms, and are continuously being proposed in various structures and methods. Although the building supporter is a simple tool, it must be used in a construction or civil construction site and must be used in large quantities. It is a part of the cost, and it is a factor that requires a lot of manpower and time for installation and removal.

2 is an exploded perspective view schematically showing a conventional building supporter 1 recently proposed. The conventional building supporter 1 has a structure in which the lower pipe 10 and the upper pipe 20 are coupled to the clamp member 30. The upper pipe 20 is relatively smaller in diameter than the lower pipe 10 so that it can be inserted into the lower pipe 10 to adjust the length.

In the prior art building supporter 1 of FIG. 2, a plurality of locking holes 21 are formed on the outer periphery of the upper pipe 20 so as to be spaced apart at predetermined intervals to fix the upper pipe 20.

In addition, the coupler 11 is formed on one side of the outer circumference of the lower pipe 10, the coupler 11 is formed through the outer circumference.

In addition, the fastening member 30 is provided separately to be fitted into the coupler (11).

The upper pipe 20 is inserted into the lower pipe 10 to adjust the length of the upper pipe 20 to be in contact with the slab, and at this time, the catch 21 and the lower pipe of the upper pipe 20 The upper pipe 20 is fixed by inserting the fastening member 30 at a position at which the coupler 11 of FIG. 10 coincides.

Such a conventional building supporter 1 inserts the slab and the upper pipe 20 into the lower pipe 10 to connect the fastening member 30 to the coupler 11 and the locking hole 21. By inserting and fixing, it is virtually difficult to precisely adjust the gap between the slab and the upper pipe 20, in order to solve this problem by narrowing the gap between the latch 21 to the upper pipe 20 by the load of the slab The load is generated in the downward direction and moves in the downward direction, thereby causing a problem that the latch 21 may be damaged. In addition, safety accidents can occur.

In addition, by fitting and fastening the fastening member 30 one by one, there is a problem that the work time is increased along with the increase in manpower during installation and deinstallation.

The first object of the present invention for solving the above problems is to provide a building supporter that can precisely adjust the distance between the bottom surface and the support surface of the slab in supporting the slab.

In addition, a second object of the present invention is to provide a building supporter to increase the bearing capacity for the load generated in the slab at the time of installation to enable a more secure and robust support.

In addition, the third object of the present invention is to provide a building supporter that can reduce the work time accompanying the work time by making it possible to conveniently perform the work during installation and dismantling.

The present invention relates to a building supporter, the building supporter of which the length can be adjusted, the building supporter of which the length can be adjusted, comprising: a first pipe; A second pipe having an outer diameter smaller than the inner diameter of the first pipe; Coupled to a predetermined position on the outer periphery of the second pipe, a plurality of pressing projections are formed on the inner periphery so as to press and fix the outer periphery of the second pipe, the separation induction projection protruding a predetermined interval to the outer periphery Is formed, the inner stopper at least one cut portion is formed in the longitudinal direction; The support jaw is formed on the inner side so that the inner stopper is inserted into the inner stopper, and the locking jaw is formed at the lower end spaced apart from the support jaw by a predetermined distance to constitute the outer stopper supporting the first pipe.

Preferably, the outer surface of the inner stopper includes an inclined surface whose outer diameter gradually decreases in the direction of inserting the inner stopper, and the support jaw of the outer stopper is formed to be inclined corresponding to the inclined surface of the inner stopper.

Preferably, the pressing protrusion is formed in a sawtooth shape or a ratchet shape.

Preferably, the sawtooth shape or the latch shape is inclined in a direction opposite to the insertion direction of the inner stopper.

Preferably, at least one ring coupling groove is formed on at least one of the upper and lower end portions of the outer periphery of the inner stopper, and the fixing ring is coupled to the ring coupling groove.

Preferably, the inner periphery is formed to have the same or corresponding diameter as the outer periphery so as to be coupled to the outer periphery of the upper end of the outer stopper, and the through hole is provided at the center so that the inner stopper inserted into the outer stopper is inserted into the center. It includes an outer cap formed.

Preferably, a female thread piece is formed on the inner circumference of the outer cap, and a male thread piece is formed on the outer circumference of the upper end of the outer stopper to be fixed by screwing together.

Preferably at least one rotation knob is formed at a predetermined angle along the outer circumference of the outer cap.

Preferably the diameter of the through-hole is formed smaller than the outer peripheral diameter of the release induction jaw.

Preferably, at least one key coupling groove is formed at a position corresponding to each of an inner circumference of the outer stopper and an outer circumference of the inner stopper, and an anti-rotation key is inserted into the key coupling groove to prevent rotation of the inner stopper. Is formed.

Preferably, the rotation preventing key is integrally formed in the key coupling groove of the outer stopper.

Preferably, the inner stopper is bent in a predetermined interval in the lower end of the induction jaw to form a receiving groove in the inner direction, the through hole of the outer cap is located in the receiving groove may be the outer cap flows in the receiving groove a predetermined interval. .

As described above, according to the present invention, the building supporter of the present invention has the following effects.

First, the building supporter according to the present invention adjusts the second pipe to exactly contact with the slab, and then moves the inner stopper coupled to the second pipe to be coupled to the inner side of the outer stopper, so that the pressing protrusion formed on the inner stopper is the first. By pressing and fixing the outer periphery of the two pipes, it is possible to position and fix the second pipe to the slab more precisely, there is an advantage that can provide a more effective support force to the slab.

In addition, by forming a pressing protrusion in a ratchet shape on the inner stopper to press and fix the outer circumference of the second pipe, the second pipe provided with the load generated in the slab is not easily moved in the provided direction, thereby providing a firm supporting force. In addition to providing the slab, there is an advantage that can be prevented accordingly.

In addition, by rotating the outer cap coupled to the outer periphery of the outer stopper to press the inner stopper in the insertion direction by the rotational force, or by rotating the outer cap in the opposite direction of the insertion to provide the pressure by the rotational induction jaw rotational force Since the inner stopper can be easily separated from the inside of the outer stopper, installation and dismantling work can be performed more conveniently, thereby reducing labor costs.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

 Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, in order to facilitate the overall understanding, the same reference numerals will be used for the same means regardless of the drawing numbers.

Figure 3 is an exploded perspective view of the building supporter according to an embodiment of the present invention, Figure 4 is an exploded cross-sectional view of the building supporter according to an embodiment of the present invention.

Referring to Figure 3, the building supporter 100 of the present invention is a hollow cylindrical first pipe 10, second pipe 20, the inner stopper 110, the outer stopper 120 and the outer cap 130 It is composed.

The first pipe 10 has a predetermined length in a hollow cylindrical shape, one side is inserted into the lower end of the outer stopper 120, the other side is located on the ground. In this case, in general, a jack or a support plate may be connected to the lower end of the first pipe 10.

The second pipe 20 has a predetermined length in a hollow cylindrical shape, and has an outer diameter smaller than the inner diameter of the first pipe 10. At this time, the supporting plate may be connected to the upper end of the second pipe 20 to support the structure.

In addition, one side of the second pipe 20 is positioned to support the poured slab, and the supporting force at this time is made by the pressure of the inner stopper 110.

The first pipe 10 and the second pipe 20 may be generally used a steel pipe having a strength that can be used as a support member of the structure, but is not limited to materials. The diameters of the first pipe 10 and the second pipe 20 are not limited.

The inner stopper 110 includes a pressurizing protrusion 112, a release guide jaw 113, a cutting part 115, and a ring coupling groove 114.

An inclined surface 111 of a predetermined angle is formed in a direction in which the inner stopper is inserted into the outer circumference of the inner stopper 110, that is, the outer diameter gradually decreases toward the lower end.

The pressing protrusion 112 is formed in the longitudinal direction on the inner circumference of the inner stopper 110, preferably the pressing protrusion 112 is formed in a sawtooth shape or ratchet shape.

In addition, the ratchet-shaped pressing protrusion 112 is formed to be inclined at a predetermined angle in a direction opposite to the insertion direction of the inner stopper 110.

Here, the ratchet refers to one that is formed to be rotatable or movable only in one direction by the action of a pawl, and not to rotate or move in the opposite direction.

In addition, the pressing protrusion 112 serves to press and fix the outer circumference of the second pipe 20 inserted into the inner stopper 110.

The release induction jaw 113 is formed to protrude a predetermined interval to the outside along the outer periphery of the upper end of the inner stopper 110.

The cutout 115 is cut and divided at a predetermined angle along the outer circumference of the inner stopper 110, but the cutout 115 is formed at least one in the longitudinal direction.

In addition, although the cutout 115 may be selectively formed at intervals of 45 degrees, 90 degrees, 120 degrees, and 180 degrees, it is preferable to form the cut portions 115 at intervals of 90 degrees.

The ring coupling hole 114 is formed at least one of at least one of the upper end and the lower end of the inner stopper 110, preferably the lower end of the separation induction jaw 113 and the separation induction jaw 113 and predetermined It is preferable that the fixing ring 140 is coupled to the ring coupling hole 114 by forming the lower end spaced apart from each other.

The ring coupling hole 114 and the fixing ring 140 integrate the inner stopper 110 divided by the cutting unit 115, and the inner stopper 110 integrated by the fixing ring 140 is It has a predetermined elastic force.

In addition, when the second pipe 20 is inserted into the pressing protrusion 112 by extending the inner stopper 110 having a predetermined elastic force in the outward direction, the pressing protrusion 112 is formed by the fixing ring 140. ) Pressurizes the outer circumference of the second pipe 20, the pressing force is a predetermined elastic force by the fixing ring 140, the pressing force is weak, so that the second pipe 20 or the inner stopper 110 May be moved to a predetermined position of the second pipe 20.

The second pipe 20 or the inner stopper 110 moved to a predetermined position is coupled inside the outer stopper 120.

In addition, the inner stopper 110 is formed with a receiving groove 118, the receiving groove 118 is formed by bent in a predetermined interval in the lower end portion of the release induction jaw 113 in a predetermined interval.

The outer stopper 120 includes a support jaw 121, a locking jaw 127, and an external thread piece 128.

The support jaw 121 is formed inside the outer stopper 120, and the support jaw 121 has a shape corresponding to the inclined surface 111 of the inner stopper 110, that is, the inner stopper at a predetermined angle. The inner diameter of the outer stopper 120 gradually decreases toward the insertion direction of the 110.

The support jaw 121 is formed to correspond to the inclined surface 111 of the inner stopper 110. As the inner stopper 110 is inserted into the upper side of the outer stopper 120 and moved in the insertion direction, As the inner stopper 110 is pressed inwards, the pressing protrusion 112 presses and fixes the outer circumference of the second pipe 20 more strongly.

In addition, the inner diameter of the support jaw 121 is formed to be the same as or corresponding to the diameter of the inclined surface 111 of the inner stopper 110.

 The locking jaw 127 is formed at a lower end spaced apart from the support jaw 121 by a predetermined interval, and is formed to engage one end of the first pipe 10 inserted into the lower end of the outer stopper 120.

In addition, the inner circumferential edge of the lower end of the outer stopper 120 having the locking step 127 is formed to be the same as or correspond to the outer diameter of the first pipe 10.

In this case, the first pipe 10 may be coupled to the outer stopper 120 by interference fit.

The male thread piece 128 is formed on the outer periphery of the upper end of the outer stopper 120, the male thread piece 128 may be formed by selectively applying.

The outer cap 130 is a female thread piece 137 is formed on the inner circumference to be mutually engaged with the male thread piece 128, the female thread piece 137 is formed by selectively applying the same as the male thread piece 128 Of course it can be.

In addition, a through hole 138 is formed at the center of the outer cap 130 so that the inner stopper 110 can be inserted inward, and the diameter of the through hole 138 is the induction of the jaw 113. It is formed smaller than the outer peripheral diameter.

In addition, at the outer periphery of the outer cap 130, the rotary knob 139 is formed to protrude outward at least one or more, preferably formed in four places at an angle of 90 degrees.

The rotation knob 139 is formed to rotate the outer cap 130.

In addition, when the outer cap 130 is rotated in the insertion direction of the inner stopper 110, the inner stopper 110 is further inserted into the outer stopper 120 by the rotational force of the outer cap 130. When the rotation of the outer cap 130 is rotated in the opposite direction, the inner stopper 110 closely contacted with the outer stopper 120 may be easily separated from the outer stopper 120. .

The fixing ring 140 is formed by cutting one side, the fixing ring 140 is coupled to the ring coupling groove 114 serves to provide a predetermined elastic force to the inner stopper 110.

5A, 5B, and 5C are cross-sectional views illustrating a method for installing and releasing a building supporter according to an embodiment of the present invention.

Referring to Figure 5 (a), (b), (c) will be described the building supporter installation method of the present invention.

The first pipe 10 is coupled to the lower end of the outer stopper 120, and the inner circumferential diameter of the lower end of the outer stopper 120 and the outer circumferential diameter of the first pipe 10 are formed to be the same or correspond to each other. At this time, the coupling of the first pipe 10 and the outer stopper 120 may be coupled by interference fit, and screwed into the inner circumferential edge of the upper end of the first pipe 10 and the lower end of the outer stopper 120, respectively. It can also be screwed to form.

In addition, the inner stopper 110 is inserted into the through hole 138 of the outer cap 130, but the inner stopper 110 is divided by the cutting portion 115 in the ring coupling groove 114 When the fixing ring 140 is coupled to the outer peripheral diameter of the inner stopper 110 is reduced, it can be easily inserted into the through hole 138.

In this case, after the through hole 138 is positioned in the receiving groove 118 formed at the lower end of the separation induction jaw 113, the second pipe 20 is inserted into the inner stopper 110. .

When the second pipe 20 is inserted into the inner stopper 110, the inner stopper 110 is opened by the elasticity of the fixing ring 140 according to the outer diameter of the second pipe 20.

On the other hand, after adjusting the distance with the slab by inserting the second pipe 20, the inner stopper 110 is inserted into the outer stopper 120.

At this time, the inner stopper 110 is inserted into the insertion direction of the outer stopper 120 by the inclined surface 111 of the inner stopper 110 and the support jaw 121 of the outer stopper 120. Pressing protrusion 112 of 110 is firmly fixed while pressing the outer periphery of the second pipe (20).

In addition, when the second pipe 20 is fixed, the outer cap 130 that is locked in the receiving groove 118 is moved in the insertion direction of the inner stopper 110. Rotating handle 139 formed on the outer cap 130 so as to mesh the male thread piece 128 formed on the outer circumference of the outer stopper 120 and the female thread piece 137 formed on the inner circumference of the outer cap 130. Rotating by using the) and the second pipe 20 can prevent the flow due to the load provided from the slab as well as providing a solid support force.

After the curing of the slab is completed (refer to FIG. 5C), the building supporter 100 is dismantled. In this case, the outer cap 130 is in an opposite direction to which the second pipe 20 is tightened. Rotating to the outer cap 130 is to press the release induction jaw 113.

Here, the pressurization of the release induction jaw 113 is generated by the rotational force of the outer cap 130, the pressure according to the generated rotational force is provided to the inner stopper 110 is provided inside the outer stopper 120 The inner stopper 110 is spaced apart from each other. At this time, the pressing protrusion 112 of the inner stopper 110 releases the pressure provided to the second pipe 20. At this time, only the elasticity of the fixing ring 140 is applied to the second pipe. Since it is provided at 20, the second pipe 20 may be moved to the lower end portion with a predetermined force to conveniently separate from the slab.

6 is an exploded perspective view of a building supporter according to another embodiment of the present invention, and FIG. 7 is a cross-sectional view of the installation of FIG. 6.

6 and 7, the building supporter 100 according to another embodiment includes a hollow cylindrical first pipe 10, a second pipe 20, an inner stopper 110, an outer stopper 120, and an outer cap. It consists of 130.

The first pipe 10 and the second pipe 20 have the same configuration as described with reference to FIG. 3, and detailed descriptions thereof will be omitted in order to avoid overlapping descriptions.

A plurality of pressing protrusions 112 are formed on the inner circumference of the inner stopper 110.

In addition, the inner stopper 110 has at least one cut portion 115 formed at a predetermined position, and at least one keying groove 116 is formed at the outer circumference of an angle opposite to the cut portion 115. It is formed in the longitudinal direction of the 110.

In this case, the cutout 115 may be selectively formed at intervals of 45 degrees, 90 degrees, 120 degrees, and 180 degrees, but it is preferable to form the cut portions 115 at intervals of 120 degrees.

In addition, the key coupling grooves 116 may be formed in the outer circumferential center of each of the inner stoppers 110 divided by the cutting parts 115, respectively.

In addition, at least one ring coupling groove 114 in at least one of the upper and lower end portions of the outer circumference of the inner stopper 110 to prevent separation of the inner stopper 110 provided by the cutting unit 115. To form, but the ring coupling groove 114 is fixed ring 140 is coupled.

Here, the ring coupling groove 114 is more preferably formed in each of the outer peripheral upper end and lower end of the inner stopper 110. That is, when the fixing ring 140 is formed to be coupled to one side alone, the inner stopper 110 may flow and be separated to the other side to which the fixing ring 140 is not coupled.

In addition, the fixing ring 140 prevents the separation of the inner stopper 110 and moves the upper direction of the second pipe 20 through the pressing protrusion 112 to generate a predetermined elastic force on the pressing protrusion 112. After allowing the second pipe 20 to move upward, the pressing protrusion 112 presses the outer periphery of the second pipe 20 by an elastic force to interrupt the movement in the downward direction.

In addition, the fixing ring 140 is formed by cutting one side.

At the inner circumference of the outer stopper 120, the support jaw 121 is formed to support the inner stopper 110 after being inserted. In this case, the inner circumference of the outer stopper 120 is an inclined surface of the inner stopper 110. It is formed with a diameter equal to or corresponding to 111.

In addition, the locking jaw 127 is formed along the inner circumference at a position spaced apart from the support jaw 121 by a predetermined distance, and the locking jaw 127 is inserted into the lower end of the outer stopper 120. One side of the pipe 10 is formed to be locked.

In addition, the inner circumferential edge of the lower end of the outer stopper into which the first pipe 10 is inserted is formed to have a diameter equal to or corresponding to the outer circumferential diameter of the first pipe 10.

In addition, the inner diameter of the locking step 127 is formed to be the same as or corresponding to the inner diameter of the first pipe 10, and is formed in a diameter larger than the outer peripheral diameter of the second pipe (20). That is, the second pipe 20 is inserted into the first pipe 10 through the locking step 127.

In addition, in order to pressurize and fix the outer circumference of the second pipe 20 more effectively, the inclined surface 111 of the inner stopper 110 and the support jaw 121 of the outer stopper 120 are disposed at a predetermined angle. It is preferable to form a diameter which becomes smaller toward the insertion direction in which the stopper is inserted.

That is, when the load transmitted from the outside (slab) is transferred to the inner stopper 110 through the second pipe 20 and the inner stopper 110 moves along the inclined support jaw 121, the inner stopper This is because the 110 is tightened inward by the narrowed diameter so that the outer periphery of the second pipe 20 can be pressed and fixed more effectively.

In addition, at least one key coupling groove 126 is formed at a position corresponding to the key coupling groove 116 formed on the inclined surface 111 of the inner stopper 110.

At this time, the key coupling groove 116 of the inner stopper 110 and the key coupling groove 126 of the outer stopper 120 to match the rotation preventing key 150 is provided separately in the key coupling grooves (116, 126). ) To prevent the inner stopper 110 from rotating inside the outer stopper 120.

Here, the anti-rotation key 150 forms a through hole penetrated with the outside in each of the key coupling grooves 126 of the outer stopper 120 to insert a fastening member into the through hole to fix the anti-rotation key 150. You may.

In addition, the rotation preventing key 150 may be formed integrally on the inner circumference of the outer stopper 120.

In addition, the outer cap 130 is provided so that the inner stopper 110 inserted and seated inside the outer stopper 120 is coupled with the outer surface of the upper end or upper end of the outer stopper 120 so that the inner stopper 110 is not easily separated to the outside. do.

At this time, the outer cap 130 is formed by screwing the outer peripheral portion 120 and the inner peripheral diameter of the outer cap 130 using the fastening member larger than the outer peripheral diameter of the outer stopper 120 to form the outer A female threaded piece 137 and a male threaded piece 128 may be formed on the inner circumference of the cap 130 and the outer circumference of the upper end of the outer stopper 120, respectively.

In addition, by forming a fitting jaw in the outer cap 130 may be formed to be fitted to the outer periphery of the outer stopper 120 of course.

1 is an exploded perspective view of a conventional building supporter.

Figure 2 is a state of use of the conventional building supporter.

Figure 3 is an exploded perspective view of the building supporter according to an embodiment of the present invention.

Figure 4 is an exploded cross-sectional view of the building supporter according to an embodiment of the present invention.

Figure 5 (a), (b), (c) is a cross-sectional view for explaining the installation method and the release method of the building supporter according to an embodiment of the present invention.

Figure 6 is an exploded perspective view of the building supporter of another embodiment of the present invention.

7 is a cross-sectional view of the building supporter installation of FIG.

* Description of Detailed Descriptions of Main Parts of Drawings *

10: first pipe 20: second pipe

100: building supporter 110: inner stopper

111: slope 112: pressing projection

113: release guide jaw 114: ring coupling groove

115: cutting portion 116, 126: key coupling groove

118: receiving groove 120: external stopper

121: support jaw 127: locking jaw

128: external thread 130: outer cap

137: female thread 138: through hole

139: rotation knob 140: fixed ring

150: anti-rotation key

Claims (12)

In the building supporter which length adjustment is possible, A first pipe; A second pipe having an outer diameter smaller than the inner diameter of the first pipe; Coupled to a predetermined position on the outer periphery of the second pipe, a plurality of pressing projections are formed on the inner periphery so as to press and fix the outer periphery of the second pipe, the separation induction projection protruding a predetermined interval to the outer periphery Is formed, the inner stopper at least one cut portion is formed in the longitudinal direction; The support jaw is formed on the inner side so that the inner stopper is inserted into the inner supporter, and the locking jaw is formed at the lower end spaced apart from the support jaw by a predetermined distance to support the first pipe. . The method of claim 1, And an inclined surface whose outer diameter gradually decreases in a direction of inserting the inner stopper into an outer circumference of the inner stopper, and the support jaw of the outer stopper is inclined corresponding to the inclined surface of the inner stopper. The method of claim 1, The pressing projection is a building supporter, characterized in that formed in the sawtooth shape or ratchet shape. The method of claim 3, The sawtooth shape or the latch shape is a building supporter characterized in that inclined in a direction opposite to the insertion direction of the inner stopper. The method of claim 1, At least one ring coupling groove is formed on at least one of the upper and lower end portions of the outer periphery of the inner stopper, wherein the building supporter is coupled to the ring coupling groove. The method of claim 1, The inner periphery is formed to have the same or corresponding diameter as the outer periphery so as to be coupled to the outer periphery of the upper end of the outer stopper, and the through hole is formed at the center so that the inner stopper inserted into the outer stopper is inserted into the center. Construction supporter including a cap. The method of claim 6, A female supporter is formed on the inner circumference of the outer cap, and the male screw piece is formed on the outer circumference of the upper end of the outer stopper to be fixed by mutual screwing. The method of claim 6, Building supporter further comprises at least one rotation handle is formed at a predetermined angle along the outer circumference of the outer cap. The method of claim 6, The diameter of the through hole is a building supporter, characterized in that formed smaller than the outer peripheral diameter of the release induction jaw. The method of claim 1, At least one key coupling groove is formed at a position corresponding to each of an inner circumference of the outer stopper and an outer circumference of the inner stopper, and an anti-rotation key is inserted into the key coupling groove to prevent rotation of the inner stopper. Construction supporter, characterized in that. The method of claim 10, And the rotation preventing key is integrally formed in the key coupling groove of the outer stopper. The method of claim 1, The receiving groove is formed by bending a predetermined interval inwardly at the lower end of the induction jaw of the inner stopper to form an accommodating groove, and a through hole of the outer cap is located in the accommodating groove so that the outer cap can be flowed in the accommodating groove by a predetermined interval. Characteristic building supporter.

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