KR102410374B1 - Retaining structure with easy change of spacing and curvature - Google Patents

Abstract

The present invention, after excavating the ground, in the retaining structure for preventing the collapse of the excavated surface, the retaining member 100 for supporting the excavated surface; It relates to a retaining structure that is connected to the retaining member 100 to support the retaining member 100, but includes a retaining member 200 whose length can be adjusted and is easily changed in spacing and curvature.

Description

Retaining structure with easy change of spacing and curvature

The present invention relates to a retaining structure installed to prevent collapse of an excavated surface when excavating the ground. More specifically, the interval can be easily adjusted by the length adjusting member, and the rotation of the retaining plate is easy by the hinge part or the ball pin part, so that it can be easily installed even when the excavation surface is inclined or the linearity of the excavation part is curved. It relates to a retaining structure that can easily change the spacing and curvature.

When excavating the ground to construct various structures or to install underground facilities in the ground, excavate the ground and perform retaining work to prevent subsidence or collapse of the surrounding ground.

The retaining method and structures used for retaining construction are determined by comprehensively considering the types and specifications of the structures to be constructed, the conditions of the construction site, the ground condition, the construction period, and economic feasibility.

The retaining method can be classified into a self-supporting method, a brace method, an anchor method, and a soil nailing method according to the support method of the retaining wall. do.

The method of using the earth plate is a method in which H-beams are penetrated into the ground at regular intervals in the vertical direction, and earth plates are inserted between the H-beams to prevent the earth plate from collapsing.

However, since the method of using the earth plate has to penetrate the H-beam into the ground, a lot of equipment and manpower is required for the penetration work, and the vibration and noise generated during the penetration of the H-beam became a problem.

In addition, the anchor-type method or the soil nailing method has disadvantages in that an anchor or a soil nail must be installed inside the ground, so expensive equipment is required and the construction cost is high.

In addition, although a welding house as shown in Fig. 1 is used when installing a pipeline, etc. in the ground, the welding house is very difficult to use in various fields because the frame is fixed and the interval and curvature cannot be adjusted, and it is particularly difficult to use in the ground. There was a disadvantage in that it was difficult to install when there was a lot of water or existing underground facilities.

Therefore, it was necessary to develop a retaining structure that can easily adjust the spacing and curvature, can be applied to various excavation surfaces, is easy to install, dismantle and store, and can reduce manufacturing costs and retaining construction costs.

Registered Patent Publication No. 10-2134366

The present invention, in order to improve the problems of the prior art as above, an object of the present invention is to provide a retaining structure that can adjust the spacing and curvature by a simple operation.

An object of the present invention is to provide a retaining structure that is easy to assemble, install and dismantle, and requires less space for storage.

An object of the present invention is to provide a retaining structure that can be installed even when there are many existing underground facilities or obstacles in the ground, and can easily secure a work space of a worker.

An object of the present invention is to provide a retaining structure that can be used for excavation surfaces having various shapes, such as curved excavation surfaces and inclined excavation surfaces.

An object of the present invention is to provide a retaining structure that has various functions and is not complicated in structure, reducing manufacturing costs and construction costs.

In the present invention, after excavating the ground, in the retaining structure for preventing the collapse of the excavated surface, the retaining member 100 for supporting the excavated surface; It is connected to the retaining member 100 to support the retaining member 100, but provides a retaining structure that includes a retaining member 200 whose length can be adjusted and is easily changed in spacing and curvature.

The holding member 200, the holding plate 210; It is connected to the support plate 210, and includes a length adjustment member 220 that can be adjusted in length.

The retaining member 100, the outer surface 112 of the retaining plate 110 in contact with the excavation surface; a pocket plate 120 provided on the inner surface 113 of the retaining plate 110 and having a cutout 121 on one side; It includes a holding plate accommodating part 140 formed between the inner surface 113 and the pocket plate 120 , and the holding plate 210 is accommodated in the holding plate accommodating part 140 .

The length adjustment member 220, the rod member 221; an insertion member 222 having a portion inserted into the rod member 221 and having a screw thread on its outer surface; a stopper 223 screwed with the screw thread of the insertion member 222 to support an end of the rod member 221; and a support plate connection part 230 connecting the end of the rod member 221 and/or the insertion member 222 and the support plate 210 .

The support plate connection part 230 includes a hinge part 231 or a ball pin part 232 .

The retaining member 100 is characterized in that it is made of aluminum.

The retaining member 100 further includes a handle 150 provided on the edge of the retaining plate 110 .

It is characterized in that the inner surface 113 of the retaining plate 110 is provided with a reinforcing protrusion 115 along the horizontal and / or vertical direction.

The two reinforcing protrusions 115 are provided side by side, and a fixing groove 116 is formed between the reinforcing protrusions 115 provided in parallel, and the pressing member 300 inserted into the fixing groove 116 is further added. Including, the pressing member 300, the pressing pipe 310; a spring 330 accommodated in the pressure pipe 310; It includes a pressure rod 320 which is partially inserted into the pressure pipe 310 .

The holding member 200 further includes a buckle member 240 .

The retaining structure with easy spacing and curvature change according to the present invention has the following effects.

First, the installation is completed by placing the retaining plate on the excavation surface, inserting the retaining member between the retaining plates, and rotating the stopper. Since the demolition is complete, installation and dismantling are very easy.

Second, by the screw coupling structure of the holding member, the retaining plate can be installed in a state in which the excavation surface is constantly pressed, so the effect of preventing collapse of the excavation surface is excellent.

Third, since the compressive force applied from the length adjusting member is transmitted to the retaining plate and then transferred to the retaining plate, the compressive stress applied locally to the retaining plate can be reduced by the retaining plate, thereby preventing the deformation of the retaining plate have.

Fourth, if the retaining plate connecting part connecting the retaining plate and the length adjustment member is provided as a hinge part, the retaining plate can be rotated around the rotation axis, so that when the excavation surface is inclined up and down, even if it is curved back and forth, it is easy to install the retaining plate can In addition, in the case of having the brace connection part as a ball pin part, since the brace can rotate in all directions, it can be easily installed no matter how the excavation surface is formed.

Fifth, by providing the reinforcing projections horizontally and/or vertically on the inner surface of the retaining plate, it is possible to reinforce the flexural rigidity of the retaining plate, and when a plurality of reinforcing projections are provided adjacent to each other, a pressing member in the space between the reinforcing projections can be fixed, the pressing member can be installed more firmly. At this time, since the pressing member includes a spring therein, it is in a state of constantly applying pressure toward the excavation surface.

Sixth, if a buckle member is provided at the end of the length adjustment member, three or four retaining plates can be fastened. Therefore, when three retaining plates are connected, it can be efficiently used for retaining work at the part where excavation starts, and when the length of the excavation part is not long, 4 retaining plates can be connected to support the four excavation surfaces at once. have.

Seventh, the structure is simple, the installation and demolition work is easy, so it can be usefully used for small-scale excavation work, it is easily separated, and the volume of the members is small, so transportation and storage are very easy.

1 relates to a retaining structure according to the prior art.
Figure 2 is a combined perspective view of the retaining structure of the present invention.
Figure 3 is an exploded perspective view of the retaining structure of the present invention.
FIG. 4 is an enlarged view A of FIG. 2 .
5 is to explain an embodiment of the length adjusting member of the present invention.
FIG. 6 is an enlarged view B of FIG. 4 , illustrating the hinge part of the present invention.
7 is to explain the ball pin part of the present invention.
8 is to explain the reinforcing projection of the present invention.
9 is to explain the pressing member of the present invention.
10 is to explain the buckle member of the present invention.
11 is a cross-sectional view in which the retaining structure of the present invention is installed.
12 is a plan view showing another embodiment of the retaining structure of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily implement them with reference to the accompanying drawings. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification. Throughout the specification, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention, as shown in FIG. 2, relates to a retaining structure that can easily change the spacing and curvature, and includes a retaining member 100 and a retaining member 200.

The retaining member 100 is to prevent collapse by supporting the excavation surface 12 after excavating the ground, and the retaining member 200 is connected to the retaining member 100 to support the retaining member 100 . do. And, the retaining structure of the present invention may further include a pressing member (300).

Hereinafter, the retaining member 100 , the holding member 200 and the pressing member 300 will be described in detail.

The retaining member 100, the retaining plate 110; pocket plate 120; spacing member 130; It includes a support plate accommodating portion (140).

The retaining plate 110 includes an outer surface 112 in contact with the excavation surface 12 and an inner surface 113 opposite to the outer surface 112 , that is, facing the inside of the excavation unit 11 .

In addition, the rigidity of the retaining plate may be increased by further including a bending part 111 bent in a U-shape along the outer edge of the retaining plate 110 .

And, in order to prevent slipping of the retaining plate 110 and the excavation surface, the outer surface 112 may be provided with an anti-slip protrusion 114 .

The pocket plate 120 is provided on the inner surface 113 of the retaining plate 110 in order to form a holding plate receiving part 140 for firmly accommodating the holding plate 210 to be described later by inserting it. A spacer 130 is integrally provided between the inner surface 113 and the pocket plate 120, and while fixing the pocket plate 120, the inner surface 113 and the pocket plate 120 by the space between the holding plate accommodating part (140) to be formed.

In order to secure the space of the holding plate accommodating part 140, the spacing member 130 is preferably provided along the outer rim of the pocket plate (outer rim where the cutout 121 is not provided) to have a certain width. do. The width of the spacing member is determined in consideration of the required size of the holding plate receiving portion, space for fastening bolts, strength, and the like. The horizontal width of the holding plate 210 should be less than or equal to the horizontal width of the holding plate receiving portion, and the horizontal width of the holding plate is preferably larger than the horizontal width of the cutout 121 . For smooth insertion of the brace plate, it is preferable that the horizontal width of the brace plate accommodating part is larger than the width of the brace plate, but if it is too large, there is a risk that the brace plate shakes in the brace plate accommodating part, so the width of the brace plate accommodating part 140 It is preferable that about 5-20mm is larger than the width of this brace.

As a method of integrating the inner surface 113 , the spacing member 130 , and the pocket plate 120 , a method such as bolt fastening or welding may be used.

In addition, a cutout 121 is provided on one side of the pocket plate to form a space for insertion of a support member to be described later. As shown in FIG. 3 , when the cutout 121 faces upward, the holding member can be inserted from top to bottom, and when the cutout 121 faces in the horizontal direction (at right angles to that shown in FIG. 3 ) direction), insert the holding member in the horizontal direction.

The planar shape of the retaining plate 110 , the pocket plate 120 , the cutout 121 , and the holding plate accommodating part 140 may be a quadrangle, more preferably a rectangle, or a square. . Although it is preferable to set it as a rectangle, the shape other than a rectangle is not excluded.

The material of the retaining member may be metal, iron, stainless steel, aluminum, or fiber reinforced plastics (FRP). However, for convenience in use and transport, it is preferable to reduce the weight of the retaining member within a range that guarantees the required strength. To this end, in the present invention, the material of the retaining plate 110 , the pocket plate 120 , and the spacing member 130 may be made of aluminum.

In addition, when installing or transporting the retaining member 100 , for more convenience, a handle 150 may be further included on the edge of the retaining plate 110 . The handle may use a bent metal plate, an aluminum plate, fiber reinforced plastics (FRP), etc., but it is preferable to use a wire that can be easily bent and folded in consideration of convenience during storage.

That is, the retaining member can be transported by holding the handle, and when the retaining member is installed on the excavation surface, it can be used when lifting the retaining member. A retaining member of a scale that can be lifted and transported by a person can be directly lifted and installed by an operator, and when the weight is difficult for a person to lift, it can be lifted using equipment.

When the planar shape of the retaining plate is rectangular, the handle may be provided on only one side of the retaining plate, or may be provided on two or more sides of the retaining plate. When installing the retaining plate, it can be installed long horizontally or vertically, so it can be conveniently used in two cases if one is provided on the long side and one on the short side.

In addition, for reinforcing the flexural rigidity of the retaining plate 110 , a reinforcing protrusion 115 may be provided on the inner surface 113 in the horizontal and/or vertical direction (see FIG. 8 ). The reinforcing protrusion 115 may be provided so as to extend from one side of the inner surface to the other side in a horizontal direction and/or a vertical direction. If the reinforcing protrusion is provided, the cross-sectional secondary moment of the retaining plate may increase, thereby increasing the flexural rigidity.

The holding member 200, the holding plate 210; length adjustment member 220; It includes a brace connection part 230 .

The holding plate 210 is inserted into the holding plate receiving part 140 as described above and pressurized while fixing the retaining plate. In the present invention, by adopting a structure in which a retaining plate in the form of a plate having a constant flat area is pressed, rather than a bar member having a small pressing area directly pressing the retaining plate, the compressive force transmitted from the length adjustment member is the retaining plate. Since it is transmitted to the retaining plate after being transferred to the retaining plate, the compressive stress applied locally to the retaining plate can be greatly reduced, thereby preventing local deformation of the retaining plate, and, in addition, the required degree of flexural rigidity of the retaining plate It can be lowered, making it possible to reduce the weight of the retaining plate. That is, the retaining plate 210 is inserted into the retaining plate accommodating part so that the retaining plate is not separated, and it not only maintains the support structure firmly, but also exhibits a synergistic effect of reducing the compressive stress applied to the retaining plate.

The length adjusting member 220 is connected to the holding plate 210, and the length thereof can be adjusted.

The length adjustment member 220, the rod member 221; Insertion member 222; A stopper 223 is included, and as shown in FIG. 5 , a part of the insertion member 222 is inserted into the rod member 221 , and the length of the length adjusting member is adjusted according to the degree of insertion thereof.

And, for fixing the length of the length adjusting member, the outer surface of the insertion member 222 is provided with a screw thread, the inner surface of the stopper 223 is also provided with a screw thread, the insertion member 222 and the stopper (223) The length of the length adjusting member is fixed by screwing.

The stopper 223 includes a main body 2231 having a screw thread on its inner surface and a rotating member 2232 provided outside the main body 2231 .

When the retaining structure is installed on the excavation surface, a compressive force is applied to the length adjusting member 220 as shown in the left and right arrows shown in FIG. 5 . At this time, since the insertion member 222 and the stopper 223 are screwed together, there is no relative movement, and the length of the length adjusting member is in the form that the body portion 2231 of the stopper 223 presses the end of the rod member 221 . becomes fixed.

When it is desired to increase the pressure to the excavation surface, the rotating member 2232 is rotated so that the insertion member 222 is moved toward the excavation surface. Since it may be difficult to rotate the stopper in a pressurized state by a certain amount, in this case, it can be rotated by tapping the rotating member with a hammer, and the same method can be used for removal.

The connection between the holding plate 210 and the length adjusting member 220 may be strong, but if it is strong, it becomes difficult to adjust the inclination of the retaining plate, so in the present invention, the holding plate 210 and the length adjusting member 220 Includes a support plate connecting portion 230 to connect so as to be rotatable.

When the connection structure of the brace connection part 230 is described with reference to the embodiment shown in FIG. 5, in FIG. It is connected to the holding plate 210 and is connected to the holding plate 210 by being connected to the insertion member 222 on the right side. And, in Figure 5 (b), both the left and right sides are connected to the insertion member 222 is connected to the holding plate (210). That is, in other words, the holding plate connecting part 230 connects the holding plate 210 to the length adjusting member, and may be connected to the rod member 221 or to the insertion member 222 .

The holding plate connection part 230 connects the end of the rod member 221 and/or the insertion member 222 and the holding plate 210, but to enable rotation, a hinge part 231 is included. .

FIG. 6 is an enlarged view B of FIG. 4 . As shown in Figure 6, the hinge portion 231 is a rotating shaft (2311); connecting rod 2312; and a fixing part 2313 .

The connecting rod 2312 is a member for connecting the rotation shaft 2311 and the rod member 221 or the insertion member 222, and directly connects the rod member 221 or the insertion member 222 to the rotation shaft 2311. In some cases, it may be omitted. Placing the connecting rod is provided to facilitate the connection because in many cases the diameter of the rod member 221 or the insertion member 222 is large compared to the space of the rotation shaft.

The fixing part 2313 is fixed to the holding plate 210, and a rotation shaft receiving hole 2314 is provided therein. In addition, the rotation shaft 2311 is rotatably coupled inside the rotation shaft receiving hole 2314 .

When the rotating shaft 2311 is installed in the horizontal direction, the holding plate and retaining plate can be rotated about the horizontal axis, and when the rotating shaft 2311 is installed in the vertical direction, the holding plate and the retaining plate can be rotated about the vertical axis will do

That is, when the retaining structure is installed in a state in which the rotation shaft 2311 is in a horizontal direction (the same direction as in FIG. 2 ), when the excavation surface is inclined in the vertical direction, it has the advantage of easy installation, and the rotation shaft 2311 ) is installed in the vertical direction (a state perpendicular to FIG. 2), and when the excavation part is bent in the horizontal direction, it exhibits the advantage of being easy to install to match the horizontal longitudinal curvature.

In addition, there is shown another embodiment of the brace connection part 230 in FIG. 7 , which is an embodiment including a ball pin part 232 . The ball pin unit 232 includes a ball pin 2321; connecting rod 2322; and a fixing part 2323 .

The connecting rod 2322 is a member for connecting the ball pin 2321 and the rod member 221 or the insertion member 222, and directly connects the rod member 221 or the insertion member 222 to the ball pin 2321. In some cases, it may be omitted. The connecting rod is provided in order to facilitate the connection because in many cases the diameter of the rod member 221 or the insertion member 222 is larger than the diameter of the ball pin 2321 .

The fixing part 2323 is fixed to the holding plate 210, and a ball pin receiving groove 2324 is provided therein. In addition, the ball pin 2321 has a spherical shape, and is rotatably coupled inside the ball pin receiving groove 2324 having a spherical shape.

In the embodiment of the hinge portion 231, the support plate has the advantage of being rotatable about one axis, whereas the embodiment of the ball pin portion 232 is not limited to any one axis, and has a special effect that it can be rotated in all directions. perform

Therefore, in the case of including the ball pin part 232 in the support plate connection part 230, not only when the excavation surface is inclined in the vertical direction, but also when the excavation part is curved in the horizontal direction, it is installed to fit the horizontal longitudinal curvature. It has the advantage of being easy. That is, even if the excavation surface is inclined in any direction, it exhibits a special effect of easily installing the retaining plate and retaining plate.

2 and 3 illustrate a form in which one holding member is provided, the present invention is not limited to one embodiment, and a plurality of embodiments are possible depending on the shape and size of the retaining plate, the shape and size of the excavation part, etc. . That is, it is possible to install a plurality of holding members between the retaining plates facing each other.

In addition, in addition to installing the retaining plate in a form facing each other, in order to be installed at a right angle, the holding member 200 may further include a buckle member 240 (FIG. 10).

The buckle member 240 is installed in a shape surrounding the rod member 221 or the insertion member 222 (the hatched portion in FIG. 10) provided in one direction, and the rod member 221 provided in one direction. ) or the insertion member 222 (the hatched portion in FIG. 10) is provided integrally with the end of the bar member 221 or the insertion member 222 forming a right angle.

The buckle member 240, the body portion 241; and a fixing part 242 .

The body part 241 is fixed while surrounding the rod member 221 or the insertion member 222 provided in any one direction, and the fixing part 242 is two, both ends of the body part 241 and It is provided integrally, so that the body part 241 can be fixed.

A bolt 243 and a nut 244 may be used for fastening of the two fixing parts 242, and other known fastening means other than the bolt or nut may be used.

The brace plate 210, the length adjustment member 220, the brace plate connection part 230, and the buckle member 240 may be made of at least one of stainless steel, iron, aluminum, and FRP.

There is a case where three retaining plates are installed at the beginning of excavation (see Fig. 12), and four retaining plates can be installed in the excavation part of a rectangular shape that is not long. In the present invention, there is a buckle at the end of the length adjusting member By providing the member, these retaining plates can be firmly installed while forming a right angle to each other.

In addition, even if many retaining plates are installed in this way, the space occupied by the holding member is small, so it is easy to secure a work space, and even if there is an obstacle in the ground, there is an advantage in that it is easy to install the holding member avoiding the obstacle.

The retaining structure of the present invention may further include a pressing member 300 provided between the facing retaining plates 110 . The pressure member 300, the pressure pipe 310; pressure rod 320; and a spring 330 (see FIG. 9 ).

A part of the pressure rod 320 is inserted into the pressure pipe 310 , and a spring 330 is provided inside the pressure pipe 310 . Therefore, when the pressing member is provided between the facing retaining plates, the pressure pipe and the pressing rod are in a state in which the pressing pipe and the pressing rod always press the retaining plate due to the elasticity of the spring, so that the retaining structure can more firmly support the excavation surface. .

Previously, it has been described that the reinforcing protrusion 115 is provided on the inner surface 113 of the retaining plate 110 in the horizontal and/or vertical direction. When the pressing member is installed, the reinforcing protrusion may be used.

That is, as shown in FIG. 8, the two reinforcing protrusions 115 are horizontally and vertically side by side in an adjacent state (the inner spacing of the reinforcing protrusions is preferably equal to or 1 to 2 mm larger than the outer diameter of the pressure pipe). When provided, a fixing groove 116 is formed between the reinforcing protrusions 115 provided in parallel, so that the pressing member 300 can be inserted into the fixing groove 116 .

A fixing groove is formed at a portion where the horizontal reinforcing protrusion and the longitudinal reinforcing protrusion intersect.

When the pressing member is installed so as to be inserted into the fixing groove, the pressing member can be more firmly fixed without shaking, and exhibits the effect of forming a retaining structure more stably. Since the pressing member includes a spring therein, it is in a state of constantly applying pressure toward the excavation surface.

When installing the retaining structure of the present invention, the retaining member 100 is positioned (at this time, it is convenient to hold the handle and set the position) on the excavation surface 12 facing each other, and the retaining member 200 while inserting the retaining plate into the cutout ), the stopper 223 is rotated so that the retaining plate presses the excavated surface, and the installation work is completed.

In addition, the retaining structure of the present invention can be implemented in various forms.

The first embodiment is a form having two retaining plates facing each other, and is a form shown in FIG. 11 . Of course, a pair of retaining plates facing each other along the longitudinal direction of the excavation may be installed to be repeated. 11, even when the excavation surface 12 is inclined, the retaining plate can be easily installed.

In the second embodiment, as shown in FIG. 12 , three retaining plates are provided, two facing each other, and one is provided between them. At the beginning of an excavation, this form can be usefully used.

As a third embodiment, in the excavation part having a rectangular shape in a flat shape that is not long, four retaining plates are used, but two retaining plates may be installed to face each other.

And in the first to third embodiments, an embodiment that does not use a retaining plate is also possible. In other words, if the side facing the excavation surface or the side adjacent to the excavation surface is hard like concrete or rock and there is no risk of collapse, it is only necessary to support the retaining plate adjacent to the excavation surface. An embodiment in which only a support plate is supported without it is also possible.

When the planar shape of the retaining plate of the present invention is rectangular, the installation direction of the retaining plate can be efficiently determined and used according to the shape of the excavation part, the horizontal length, the longitudinal linearity, the vertical depth, and the like.

That is, in the case of a deep excavation part, it can be installed long up and down (the long side in the vertical direction), and in the case of the excavation part having a shallow depth and a long horizontal length, it can be long in the horizontal direction (the short side of the short side in the vertical direction). ) can be installed.

And, depending on the location of the obstacle in the excavation part, the working space, the shape of the excavation part, etc., the cut-out may be installed so that the cut-out faces upward, the cut-out part may be installed so that the cut-out part faces in the horizontal direction, and in some cases, it is also possible to install it to face the diagonal direction do. That is, when it is difficult to install the brace member from top to bottom due to an obstacle, it can be installed in the horizontal or oblique direction. Do it.

In addition, when the brace connection part 230 includes the hinge part 231, the rotation shaft 2311 may be installed horizontally according to the linearity, curvature, shape, size, etc. of the excavation part, or may be installed in a vertical direction, in which case It can also be installed in an oblique direction.

Although the present invention has been described with reference to the embodiment shown in the drawings, which is merely exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100. Retaining member
110. Retaining plate 111. Bending part
112. Outside 113. Inside
114. Non-slip projection
115. Reinforcement projection 116. Fixing groove
120. Pocket plate 121. Cutout
130. Spacing member
140. Bracing plate receiving part
150. Handle
200. Brace member
210. Bracing
220. Length adjustment member
221. Bar member 222. Insert member
223. Stopper
2231. Main body 2232. Rotating member
230. Bracing plate connection
231. Hinge
2311. Rotating shaft 2312. Connecting rod
2313. Fixing part 2314. Hole for rotating shaft
232. Ball pin part
2321. Ball pin 2322. Connecting rod
2323. Fixing part 2324. Ball pin receiving groove
240. Buckle member
241. Main body 242. Fixed part
243. Bolt 244. Nut
300. Pressing member
310. Pressure pipe 320. Pressure rod
330. Spring
11. Excavation 12. Excavation Surface

Claims (10)

In the retaining structure for preventing the collapse of the excavated surface after excavating the ground,
Retaining member 100 for supporting the excavation surface;
It is connected to the retaining member 100 and supports the retaining member 100, but includes a retaining member 200 whose length can be adjusted,
The holding member 200, the holding plate 210; It is connected to the support plate 210 and includes a length adjustment member 220 whose length can be adjusted,
The retaining member 100, the outer surface 112 of the retaining plate 110 in contact with the excavation surface; a pocket plate 120 provided on the inner surface 113 of the retaining plate 110 and having a cutout 121 on one side; It includes a holding plate accommodating part 140 formed between the inner surface 113 and the pocket plate 120, and the holding plate 210 is accommodated in the holding plate accommodating part 140,
The length adjustment member 220, the rod member 221; an insertion member 222 having a portion inserted into the rod member 221 and having a screw thread on its outer surface; a stopper 223 screwed with the screw thread of the insertion member 222 to support an end of the rod member 221; Comprising a support plate connecting portion for connecting the end of the rod member 221 and / or the insertion member 222 and the support plate 210
Retaining structure with easy change of spacing and curvature. delete delete delete According to claim 1,
The support plate connecting portion includes a hinge portion 231 or a ball pin portion 232
Retaining structure with easy change of spacing and curvature. 6. The method of claim 1 or 5,
The retaining member 100 is characterized in that made of aluminum
Retaining structure with easy change of spacing and curvature. 6. The method of claim 1 or 5,
The retaining member 100 further includes a handle 150 provided on the edge of the retaining plate 110 .
Retaining structure with easy change of spacing and curvature. 6. The method of claim 1 or 5,
The inner surface 113 of the retaining plate 110 is characterized in that the reinforcement projection 115 is provided along the horizontal and / or vertical direction.
Retaining structure with easy change of spacing and curvature. 9. The method of claim 8,
The two reinforcing protrusions 115 are provided side by side, and a fixing groove 116 is formed between the reinforcing protrusions 115 provided in parallel, and the pressing member 300 inserted into the fixing groove 116 is further added. including,
The pressure member 300, the pressure pipe 310; a spring 330 accommodated in the pressure pipe 310; Including a pressure rod 320 which is partially inserted into the pressure pipe 310
Retaining structure with easy change of spacing and curvature. 6. The method of claim 1 or 5,
The holding member 200, further comprising a buckle member (240)
Retaining structure with easy change of spacing and curvature.

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