WO2023239054A1

WO2023239054A1 - Scaffold clamp

Info

Publication number: WO2023239054A1
Application number: PCT/KR2023/005931
Authority: WO
Inventors: 박남준
Original assignee: 박남준
Priority date: 2022-06-08
Filing date: 2023-05-02
Publication date: 2023-12-14
Also published as: KR102547576B1

Abstract

The present invention relates to a scaffold clamp having improved fixing strength for scaffolding pipes, and having improved reinforcement strength for durability of the scaffold clamp, which fixes corresponding pipes, and, more specifically, to a scaffold clamp used for connecting pipes during scaffolding construction, the scaffold clamp comprising: a reinforcing body bent such that the lower and rear surfaces of the scaffold clamp can be formed; a pair of sidewall bodies fixed at both sides of the reinforcing body so as to be adjacent to each other; a rotating body, which is rotatably coupled to one from among a plurality of fastening means for fixing the reinforcing body and the sidewall bodies to each other, so that the pair of sidewall bodies and the pipe are pressed and fixed together; and a pressing body which is rotatably coupled to the pair of sidewall bodies, and which is inserted into the rotating body by means of rotation so as to fix the rotating body by means of pressing, wherein the reinforcing body and/or the rotating body has an embossed outer surface for improving the reinforcement strength of the scaffold clamp.

Description

Scaffolding Clamp

The present invention relates to a scaffolding clamp with improved reinforcing power for the durability of the scaffolding clamp that secures the pipe as well as improving the fixing force of the pipe for scaffolding installation. Meanwhile, this patent application claims priority to Korean Patent Application No. 10-2022-0069604 submitted to the Korean Intellectual Property Office on June 8, 2022, and the disclosure of the patent application is incorporated herein by reference.

Generally, after erecting the frame, outdoor construction of the building is done first, and then interior construction is done. In order to perform outdoor construction, scaffolding must be fixed to the outside of the building, a safety net must be installed, and the exterior wall of the building must be constructed. make it possible

Scaffolding installed for the construction of the outer wall of the above-mentioned building has a truss structure made of vertical, horizontal, or diagonal pipes (PIPE). A clamp is provided to firmly couple them together.

Such scaffolding clamps are typically used by inserting the scaffolding into the clamp and fastening it with bolts to secure the clamp within the scaffolding. As an example, a scaffolding clamp as shown in Figure 1 is disclosed, and its properties will be briefly described. A clamp body that forms a curve inside and has a first hinge and a second hinge at both ends, and one end of the first hinge of the above-described clamp body is rotatably fastened to form a curve inside and a fastening groove is formed at the other end. It is provided with a cover, a rotating screw whose one end is rotatably fastened to the above-mentioned second hinge, and a female screw with an internal thread formed so as to be fastened to the other end of the above-mentioned rotating screw, and a rotating handle is provided at the top of the aforementioned female screw. It is formed of a configuration including a fastener.

However, in the clamp of this prior art, the inner circumferential surface of the clamp body 10 and the inner circumferential surface of the cover 20, which substantially pressurize and secure the outer peripheral surface of the scaffold with a smooth surface, also make smooth surface contact, so they do not depend on the skill of the worker or on the work site. If the screw connection of the fastener 40 becomes loose due to frequent vibration, a problem occurs in which the fixing force of the scaffold and the scaffold clamp itself is reduced.

In addition, the prior art is a method of fixing the outer peripheral surface of the scaffold by engaging the inner peripheral surface of the clamp body (10) and the cover (20) when connecting the scaffold and the scaffolding clamp, so due to frequent use, the main body (10) and the cover (20) ), the strength of the biting area decreases, causing problems such as severe tearing when external shock occurs, which can lead to safety accidents.

In order to solve the above-described conventional problems, the purpose of the present invention is to provide a scaffold clamp with improved fixing force and durability for engagement between the outer peripheral surface of the scaffold and the inner peripheral surface of the clamp being interviewed.

In order to solve the technical problems of the above-mentioned conventional problems, the scaffolding clamp according to the present invention is a scaffolding clamp used to connect pipes during building scaffolding construction, and the scaffolding clamp is bent to form the lower surface and the rear of the scaffolding clamp. The formed reinforcing body 100, a pair of side wall bodies 200 fixed and installed adjacent to each other on both sides of the reinforcing body 100, and a plurality of mutually fixing the reinforcing body 100 and the side wall body 200. A rotating body 300 and a pair of side wall bodies 200 that are rotatably coupled to any one of the fastening means (B) to pressurize and fix the pipe (P) together with the pair of side wall bodies 200. It includes a pressing body 400 that is rotatably coupled and inserted into the rotating body 300 by rotation and fixes the rotating body 300 by pressing, wherein the reinforcing body 100 or the rotating body 300 ) is characterized in that embossing (M) is formed on the outer surface of at least one of the scaffold clamps to improve the reinforcing force of the scaffold clamp.

In addition, the reinforcing body 100 is preferably bent in an 'L' shape and has fitting protrusions 110 formed at both ends to engage the side wall body 200.

In addition, the side wall body 200 has an insertion hole 210 drilled into which the fitting protrusion 110 of the reinforcement body 100 is inserted, and is formed in an arc shape corresponding to the peripheral surface of the pipe P. In order to prevent the curved portion 220 and the pipe P that is pressurized and fixed from being pushed, it is preferable to include a plurality of first protrusions 221 formed in the longitudinal direction of the curved portion 220.

In addition, the side wall body 200 further includes a gap maintenance pipe 230 through which the fastening means (B) is inserted, and the gap maintenance pipe 230 is a pair of joints coupled to both sides of the reinforcement body 100. It is preferable that it is formed to have the same length as the gap between the side wall bodies 200.

In addition, the rotating body 300 has a curved shape and the embossing (M) is formed on the outer surface, and the pipe (P) together with the side wall body 200 is centered on the fastening means (B) inserted through the lower part. A rotating body 310 that rotates to pressurize the outer surface, a bent portion 320 bent to have an arc shape at both ends of the rotating body 310 in the direction of the reinforcing body 100, and the side wall body. A plurality of second protrusions 321 formed in the longitudinal direction at the end of the bent portion 320 to prevent the pipe P, which is pressurized and fixed together with (200), from sliding, and a second protrusion 321 formed on the upper part of the rotating body 310 but rotating It is preferable that the pressing body 400 includes a coupling groove 330 through which the pressing body 400 enters and exits.

In addition, the pressing body 400 has a rotating shaft 410 inserted through the upper part of a pair of adjacent side wall bodies 200, and a rotating shaft 410 positioned between the pair of side wall bodies 200. A rotary bar 420 is rotatably inserted through and enters and exits the coupling groove 330 by rotation, and is fastened so as to be screwably engaged with a screw thread formed on the outer surface of the rotary bar 420, depending on the degree of tightening. A fixing nut 430 that pressurizes and secures the outer surface of the rotating body 310 and at least one on both sides of the rotating bar 420 are inserted through the outer surface of the rotating shaft 410 to form the rotating bar 420. It is preferable to include a washer 440 that prevents the rotation axis 410 from flowing in the longitudinal direction.

According to the present invention, due to the embossing that is formed in the form of intaglio and embossing, which is different from the conventional one, it has the effect of maintaining durability even when external physical force is applied to the reinforcing body and the rotating body.

In addition, unlike before, a pair of side wall bodies can be detachably joined on both sides by fastening means based on the reinforcing body, realizing the effect of providing convenience of maintenance through replacement of individual components. do.

In addition, unlike the conventional pipe, the first protrusion formed on the curved portion and the second protrusion formed on the bent portion provide the effect of easily fixing the outer surface of the pipe by pressing it.

In addition, unlike in the past, multiple washers along with the rotating bar can be inserted through the rotating shaft, so that the rotating bar does not move in the longitudinal direction of the rotating shaft when rotating, but is stably inserted into the coupling groove, so that the fixing nut stabilizes the rotating body. It also has the effect of being able to pressurize.

Figure 1 is a perspective view showing a scaffold clamp according to the present invention.

Figure 2 is an exploded perspective view of Figure 1.

Figure 3 is a side view of Figure 1.

Figure 4 shows another embodiment of a reinforcing body for a scaffold clamp according to the present invention.

Figure 5 is an example of a pair of scaffold clamps of Figure 4 combined.

Hereinafter, various embodiments will be described in more detail with reference to the attached drawings. The embodiments described herein may be modified in various ways. Specific embodiments may be depicted in the drawings and described in detail in the detailed description. However, the specific embodiments disclosed in the attached drawings are only intended to facilitate understanding of the various embodiments. Therefore, the technical idea is not limited to the specific embodiments disclosed in the attached drawings, and it should be understood that all equivalents or substitutes included in the spirit and technical scope of the invention are included.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but these components are not limited by the above-mentioned terms. The above-mentioned terms are used only for the purpose of distinguishing one component from another.

In this specification, terms such as “comprise” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof. When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

In addition, when describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof is abbreviated or omitted.

Hereinafter, the scaffold clamp (1) according to the present invention will be described in detail with reference to the attached drawings.

First, as shown in FIGS. 1 to 3, the scaffold clamp 1 according to the present invention largely includes a reinforcing body 100, a side wall body 200, a rotating body 300, and a pressing body 400. , the reinforcing body 100 and the rotating body 300 may be embossed (M) to improve durability by resisting physical force generated when the outer surface of the pipe (P) is pressurized and fixed.

In more detail, the reinforcing body 100 is detachably coupled between a pair of side wall bodies 200, which will be described later, to reinforce the side wall bodies 200 so that the spacing between them is not variable.

For this purpose, the reinforcing body 100 is made of steel and is bent to have an overall 'ㄴ' shape to form a pair of side wall bodies ( 200).

Fitting protrusions 110 are formed at both ends of the reinforcement body 100 to be inserted through the side wall body 200, and the fitting protrusions 110 are fitted with the insertion hole 210 in a shape-fitting manner to form a single reinforcement. It is designed to have a structure in which a pair of side wall bodies 200 are fastened to the body 100.

At this time, a pair of side wall bodies 200 coupled to both sides of the reinforcing body 100 may be fixed to the reinforcing body 100 by penetration of fastening means (B) consisting of rivets, bolts, and nuts. The description will be given in more detail in the side wall body 200 described later.

On the other hand, the embossing (M) formed on the outer surface of the reinforcing body 100 prevents the reinforcing body 100 from being damaged or deformed when a physical external force is applied to the reinforcing body 100 for fixing the pipe (P). For the purpose of reinforcing the reinforcement body 100, the outer surface of the reinforcement body 100 is molded to have a concave (M-1) or embossed (M-2) shape.

In addition, a through hole 10 is formed on the outer surface of the reinforcement body 100 so that it can be coupled to each other by a separate scaffold clamp 1' and a fastening means B (see FIGS. 4 and 5).

Therefore, when a plurality of pipes (P) to form a scaffold are crossed and joined together, a pair of scaffold clamps (1, 1') connected to each other by fastening means (B) according to the direction of the pipes (P). Fixing the pipe (P) can be easily implemented.

In addition, the side wall body 200 is fixedly coupled by fastening means (B) so as to be adjacent to each other on both sides of the above-described reinforcement body 100, and pressurizes and fixes the outer surface of the pipe (P) together with the rotating body 300, which will be described later. The configuration for doing so includes an insertion hole 210, a curved portion 220, and a gap maintenance pipe 230.

For example, as shown, the insertion hole 210 is formed on the outer surface of the side wall body 200 opposite the fitting protrusion 110 protruding from both ends of the reinforcement body 100 and is shape-fitted with the fitting protrusion 110. make it possible

At this time, the upper part of the pair of side wall bodies 200 is preferably bent to narrow the gap so that the pressure body 400, which will be described later, can be installed at a designated position and have a relatively narrow moving distance.

In addition, the curved portion 220 is formed to have an arc shape on the outer surface of the side wall body 200 in contact with the pipe P, and the circumferential surface of the curved portion 220 has first protrusions 221 adjacent to each other in the longitudinal direction. A plurality of protruding portions are formed so that the first protrusion 221 has a structure capable of stably pressing and fixing the outer surface of the pipe P without being pushed when pressed.

Here, it is preferable that the first protrusion 221 is not simply a protruding shape, but that the end facing the surface corresponding to the circumferential surface of the pipe P is molded into an arc shape, and a plurality of the first protrusions 221 are formed. At least one of them has a different protruding length so that the pipe (P) with a circular cross-section can be stably pressed and fixed.

As shown as an example, the fixing force of the pipe P can be improved by forming the length of the first protrusion 221 formed at one end and the other end of the curved portion 220 among the plurality of first protrusions 221 to be longer. there is.

In addition, the gap maintenance pipe 230 is provided on the outer surface of a plurality of fastening means (B) for fixing the pair of side wall bodies 200 to the reinforcement body 100, so that when fixing the pipe P, the pair of side walls The gap D between the bodies 200 is maintained at all times.

That is, a pair of side wall bodies 200 provided on both sides of the reinforcement body 100 are fixedly coupled to the reinforcement body 100 by a plurality of fastening means (B) inserted through the through hole 10. The spacing is The holding pipe 230 is provided on the outer surface of at least one of the plurality of fastening means (B) and is installed so that both ends can contact each of the side wall bodies 200 facing each other at a gap ( D) can be maintained.

For this purpose, the length of the gap maintenance pipe 230 is formed to have the same length as the gap D between the pair of side wall bodies 200.

In addition, the rotating body 300 is rotatably fastened between the pair of side wall bodies 200 described above and rotates to pressurize and fix the outer surface of the pipe P together with the side wall body 200. It includes the entire body 310, a bent portion 320, and a coupling groove 330.

For example, as shown, the rotating body 310 is formed to have an overall arc shape using steel material, and the lower part is one of a plurality of fastening means (B) that secures the pair of side wall bodies 200. One is inserted through so that the rotating body 310 can be used as an axis when rotating.

On the outer surface of the rotating body 310, an embossing M having the negative and positive shapes formed on the reinforcement body 100 described above is formed to reduce durability due to the physical force generated when pressurizing and fixing the pipe P. Reinforcement to prevent this is possible.

At this time, the shape of the embossing (M) formed on the rotating body 310 as well as the above-described reinforcement body 100 can be formed in multiple shapes as needed.

In addition, as shown, the bent portion 320 is formed by bending at right angles on both sides of the rotating body 310, and the bent portion 320 is formed to have the same arc shape as the curved portion 220 described above. This allows the pipe (P) to be pressurized and fixed together with the first protrusion 221 formed on the curved portion 220.

For this purpose, a second protrusion 321 having the same shape as the first protrusion 221 is formed at the end of the arc-shaped bent portion 320 to stably pressurize and fix the pipe P. , the second protrusion 321 that faces the outer surface of the pipe (P) may also have an end that faces the peripheral surface of the pipe (P) formed in an arc shape.

In addition, the coupling groove 330 is formed to have a predetermined length on the upper part of the rotating body 310, and after the pressing body 400, which will be described later, is inserted by rotation, the rotating body 400 is inserted according to the degree of tightening of the fixing nut 430. (310) Pressurizing the outer surface makes it possible to pressurize and fix the pipe (P).

Here, the pressing body 400 includes a rotating shaft 410, a rotating bar 420, a fixing nut 430, and a washer 440, as shown.

As described above, the rotation shaft 410 is fastened so as to be connected to each other by penetrating the upper part of a pair of side wall bodies 200 with relatively narrow intervals so as to minimize the moving distance of the rotation bar 420.

The rotating bar 420 is installed so that one side can be rotatably inserted through the rotating shaft 410, and threads that engage with the fixing nut 430 are formed on the outer surface of the fixing nut 430. The outer surface of the rotating body 310 is pressed according to the degree of tightening, so that the pressing force on the pipe P in the state of being bitten by the first and

second protrusions

221 and 321 can be varied.

That is, in order to install the scaffold, the worker first arranges the first protrusion 221 formed on the pair of curved portions 220 to be in contact with the outer surface of the pipe (P) and rotates the rotating body 310 to The second protrusion 321 is installed on the other outer surface of the pipe (P) so that it can face the surface.

In this state, the worker rotates the rotating bar 420 centered on the rotating shaft 410 in the direction of the rotating body 310, and when the rotating bar 420 is inserted into the coupling groove 330, the fixing nut 430 rotates. While moving in the direction of the rotating body 310, the outer surface of the rotating body 310 is tightened to pressurize it.

Then, depending on the degree of tightening of the fixing nut 430, the second protrusion 321 formed on the rotating body 310 presses the outer surface of the pipe (P), and at the same time, the rotating shaft through which the rotating bar 420 is inserted (410) A pair of side wall bodies 200 connected to both sides are tightened equally in the direction of the rotating body 310, so that the first protrusion 221 also faces the same pipe as the second protrusion 321 ( P) By pressurizing the outer surface, the pipe (P) can be firmly fastened to the scaffold clamp (1).

Of course, if the above-mentioned contents are carried out in reverse order, when tightening is performed to pressurize the outer surface of the pipe (P), the pressing force of the first and second protrusions (221, 321) is lowered and the pipe (P) is separated.

At this time, the rotating bar 420 rotates inside the coupling groove 330 so that it can be stably inserted into the coupling groove 330, so that the rotating bar 420 is inserted through the outer surface of the rotating shaft 410 on both sides. It is preferable that a plurality of washers 440 are further provided to prevent the rotation bar 420 from moving in the longitudinal direction of the rotation shaft 410.

As described above, the scaffold clamp (1) according to the present invention is different from the conventional one due to the embossing (M) formed in the form of intaglio (M-1) and embossing (M-2), so that external physical force is prevented. This has the effect of maintaining durability even when applied to the reinforcing body 100 and the rotating body 300.

In addition, unlike in the past, a pair of side wall bodies 200 can be detachably coupled on both sides by fastening means (B) based on the reinforcement body 100, thereby improving convenience of maintenance through replacement of individual components. It implements the effect that can provide.

In addition, unlike the prior art, the outer surface of the pipe (P) can be easily fixed by pressing through the first protrusion 221 formed on the curved portion 220 and the second protrusion 321 formed on the bent portion 320. Achievable effects are realized.

In addition, unlike the prior art, a plurality of washers 440 can be inserted through the rotating shaft 410 along with the rotating bar 420, so that when the rotating bar 420 rotates, it moves in the longitudinal direction of the rotating shaft 410. By being stably inserted into the coupling groove 330 without flowing, the fixing nut 430 also has the effect of stably pressing the rotating body 310.

As described above, the present invention has been described with specific details such as specific components and limited embodiments and drawings, but this is only provided to facilitate a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , those skilled in the art can make various modifications and variations from this description.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and the scope of the patent claims described later as well as all things that are equivalent or equivalent to the scope of this patent claim shall fall within the scope of the spirit of the present invention. .

Description of the sign

1: Scaffolding clamp according to the present invention 10: Through hole 100: Reinforcement body 110: Fitting protrusion

200: side wall body 210: insertion hole 220: curved portion 221: first protrusion 230: gap maintenance pipe

300: Rotating body 310: Rotating body 320: Bend portion 321: Second protrusion 330: Coupling groove

400: Pressure body 410: Rotating shaft 420: Rotating bar 430: Fixing nut 440: Washer

B: Fastening means M: Embossing P: Pipe

Claims

In the scaffolding clamp used to connect pipes during building scaffolding construction,

The scaffold clamp is

A reinforcing body 100 bent to form a lower surface and a rear surface of the scaffold clamp;

A pair of side wall bodies (200) fixedly installed adjacent to each other on both sides of the reinforcing body (100);

The reinforcing body 100 and the side wall body 200 are rotatably coupled to any one of a plurality of fastening means (B) that mutually fix the side wall body 200 to pressurize the pipe (P) together with the pair of side wall bodies 200. A rotating body for fixing (300); and

A pressure body 400 rotatably coupled to a pair of the side wall bodies 200 and inserted into the rotation body 300 by rotation to fix the rotation body 300 by pressing;

A scaffolding clamp, characterized in that an embossing (M) is formed on the outer surface of at least one of the reinforcing body (100) or the rotating body (300) to improve the reinforcing force of the scaffolding clamp.
According to paragraph 1,

The reinforcement body 100 is

A scaffolding clamp, characterized in that it is bent into an 'ㄴ' shape and has inserting protrusions (110) formed at both ends to engage with the side wall body (200).
According to paragraph 2,

The side wall body 200 is

an insertion hole 210 formed through which the fitting protrusion 110 of the reinforcing body 100 is inserted;

A curved portion 220 formed in an arc shape corresponding to the circumferential surface of the pipe P; and

A scaffold clamp comprising a plurality of first protrusions (221) formed in the longitudinal direction of the curved portion (220) to prevent the pipe (P) being pressurized and fixed from sliding.
According to paragraph 3,

The side wall body 200 is

It further includes a gap maintenance pipe 230 through which the fastening means (B) is inserted,

A scaffold clamp, characterized in that the gap maintenance pipe (230) is formed to have a length equal to the gap between the pair of side wall bodies (200) coupled to both sides of the reinforcement body (100).
According to paragraph 1,

The rotating body 300 is

It has a curved shape and the embossing (M) is formed on the outer surface, and rotates with the side wall body 200 around the fastening means (B) inserted through the lower part to pressurize the outer surface of the pipe (P). Total (310);

Bend portions 320 bent to have an arc shape at both ends of the rotating body 310 in the direction of the reinforcing body 100;

A plurality of second protrusions 321 formed in the longitudinal direction at the end of the bent portion 320 to prevent the pipe P, which is pressurized and fixed together with the side wall body 200, from sliding; and

A scaffold clamp comprising a coupling groove 330 formed on the rotating body 310 through which the rotating pressing body 400 enters and exits.
According to paragraph 1,

The pressurizing body 400 is

A rotating shaft 410 inserted through the upper part of a pair of adjacent side wall bodies 200;

A rotating bar 420 that is rotatably inserted through the rotating shaft 410 to be positioned between a pair of side wall bodies 200 and moves in and out of the coupling groove 330 by rotation;

A fixing nut 430 that is fastened so as to be screw-coupled with a screw thread formed on the outer surface of the rotating bar 420 and pressurizes and secures the outer surface of the rotating body 310 according to the degree of tightening; and

At least one washer 440 is provided on both sides of the rotation bar 420 and is inserted through the outer surface of the rotation shaft 410 to prevent the rotation bar 420 from moving in the longitudinal direction of the rotation shaft 410; Scaffolding clamp comprising a.