KR102360071B1 - Prefab worker protection apparatus - Google Patents

Abstract

Prefabricated worker protection mechanism according to an embodiment of the present invention, the upper portion formed for the operator to protect the operator, the support portion and the support portion coupled in the downward direction from both ends of the upper portion to support the upper portion to the bottom surface to fix the support portion and a fixing part formed at the lower end of the support part.
The prefabricated worker protection mechanism according to an embodiment of the present invention can be easily assembled at the construction site through the configuration of the upper part and the support part, and the worker proceeds the work under the mechanism, thereby protecting the worker in case of a safety accident caused by soil collapse.

Description

Prefab WORKER PROTECTION APPARATUS {PREFAB WORKER PROTECTION APPARATUS}

The present invention relates to a prefabricated worker protection mechanism used during pipeline construction, and more particularly, to a prefabricated worker protection mechanism that can be installed simply and quickly to prevent safety accidents of workers due to soil collapse in pipeline construction.

It is important to ensure the safety of workers during pipeline construction. Pipeline construction is basically performed on the ground. At this time, since the pipe is buried in the ground, the soil is exposed and the worker repairs or installs the pipe in the ground. Therefore, the worker always works at the risk that the soil in the ground will collapse and harm the worker.

In the case of large-diameter pipeline construction, most installs a retainer to ensure the safety of workers. However, it is difficult to install a retainer in an emergency such as a leak repair construction or when the work space is narrow and there are many obstacles such as a small-diameter pipeline construction. As a result, there are many cases in which workers are exposed to the risk of soil collapse without installing a retaining wall. In the case of leak restoration work, the possibility of collapse is high on the wet soil surface due to water leakage, so there is a high possibility of a safety accident. situation.

In order to solve such a problem, even when there are many obstacles or urgent at the pipeline construction site, it should be possible to install a mechanism for protecting workers simply and quickly.

KR 10-2058309 B1

The prefabricated worker protection mechanism according to an embodiment of the present invention is manufactured in a prefabricated manner so that it is easy to transport and can be installed in a short time at an urgent pipeline construction site. In addition, in order to respond to unexpected obstacles at the pipeline construction site, the width and length of the prefabricated worker protection mechanism can be adjusted so that the mechanism can be installed while avoiding the obstacle. In addition, the present invention provides a prefabricated worker protection mechanism having a structure that can efficiently withstand the weight of the soil by assuming that the soil may collapse.

Prefabricated worker protection mechanism according to an embodiment of the present invention, the upper portion formed for the operator to protect the operator, the support portion and the support portion coupled in the downward direction from both ends of the upper portion to support the upper portion to the bottom surface to fix the support portion and a fixing part formed at the lower end of the support part.

In the prefabricated worker protection mechanism according to an embodiment of the present invention, the support portion includes a lower end coupled to the fixing portion and a middle portion connecting between the lower end and the upper portion.

In the prefabricated worker protection mechanism according to an embodiment of the present invention, the intermediate portion may be configured to be coupled to a plurality, the height of the prefabricated worker protection mechanism is adjusted according to the number of the intermediate portion.

In the prefabricated worker protection mechanism according to an embodiment of the present invention, a perforation hole is formed in the upper portion and the support portion.

In the prefabricated worker protection mechanism according to an embodiment of the present invention, at the lower end of the lower end coupled to the fixing portion, a first groove in the form of a groove is formed so that the fixing portion is coupled, and the fixing portion, the first groove portion A body part to be inserted and coupled, a second groove part formed in a groove shape inside the body part, a pile part coupled to the inside of the second groove part and fixed to the bottom surface, a certain force is provided between the pile part and the second groove part When the first elastic part is compressed so that a predetermined or more force is applied to the pile part from the first elastic part and the first elastic part to It includes a first fixing pin fixed to the hole.

In the prefabricated worker protection mechanism according to an embodiment of the present invention, the upper portion includes a peripheral plate that is a plate connected to the support and a center plate that connects between the peripheral plate.

In the prefabricated worker protection mechanism according to an embodiment of the present invention, the center plate is formed with a first perforation including a plurality of holes penetrating in the thickness direction of the center plate, and the peripheral plate is, A second perforation including a plurality of holes penetrating in the thickness direction is formed.

In the prefabricated worker protection mechanism according to an embodiment of the present invention, the first perforation is formed in a central area having a width of 1/3 of the transverse length of the center plate in the central portion of the center plate, and the center plate The center plate excluding the center region and a plurality of center perforated holes formed with a diameter of 1/10 the length of the longitudinal direction, and the distance between the centers of each other is 2/5 of the longitudinal length of the center plate A plurality of intermediate perforated holes formed in and formed with a diameter of 1/8 of the length in the longitudinal direction of the center plate, the distance between the centers of each other being 1/4 of the length of the center plate in the longitudinal direction; and the second perforation is formed with a diameter of 1/6 of the longitudinal length of the peripheral plate, and the distance between the centers of each other is a plurality of outer edges formed with a size of 1/3 of the longitudinal length of the peripheral plate Consists of a perforated hole, the central plate and the peripheral plate are formed to have the same longitudinal length, so that the vertical length of the upper portion is uniformly formed.

In the prefabricated worker protection mechanism according to an embodiment of the present invention, the peripheral plate is coupled to the central plate by a rail to slide on the central plate, depending on the distance the peripheral plate slides from the central plate. The length in the horizontal direction of the upper part, which is the distance between both ends of the upper part, is adjusted.

The prefabricated worker protection mechanism according to an embodiment of the present invention can be easily assembled at the construction site through the configuration of the upper part and the support part, and the worker proceeds the work under the mechanism, thereby protecting the worker in case of a safety accident caused by soil collapse. In addition, by assembling a plurality of plates to form a support portion of an embodiment of the present invention, the height of the mechanism can be adjusted so that the mechanism can be applied to various construction sites. In addition, by forming a perforated hole in the upper part and the support part of the present invention, the weight of the soil is efficiently distributed when the soil collapses, thereby minimizing the possibility of the mechanism collapsing by the weight of the soil. In addition, by allowing the width of the upper portion to be adjusted according to an embodiment of the present invention, the tool can be applied to various construction sites.

1 is a perspective view of a prefabricated worker protection mechanism according to an embodiment of the present invention;
2 is an exploded perspective view of a support according to an embodiment of the present invention;
3 is a cross-sectional view illustrating a connection between a fixing part and a middle part, a middle part and an upper part according to an embodiment of the present invention;
Figure 4a is an exploded perspective view between the fixing portion and the lower end according to an embodiment of the present invention;
Figure 4b is a cross-sectional view showing the coupling process of the fixing portion and the lower end according to an embodiment of the present invention;
5A to 5D are perspective views of an upper portion according to another embodiment of the present invention;
6A is a cross-sectional view of a center plate according to another embodiment of the present invention; and
6B is a cross-sectional view of a peripheral plate according to another embodiment of the present invention.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings and preferred embodiments. In the present specification, in adding reference numbers to the components of each drawing, it should be noted that only the same components are given the same number as possible even though they are indicated on different drawings. In addition, terms such as "one side", "the other side", "first", "second" etc. are used to distinguish one component from another component, and the component is limited by the terms no. Hereinafter, in describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the gist of the present invention will be omitted.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals indicate like members.

1 is a perspective view of a prefabricated worker protection mechanism 1 according to an embodiment of the present invention.

The prefabricated worker protection mechanism 1 according to an embodiment of the present invention extends downward from both ends of the upper portion 100 formed on the operator P to protect the operator P, and the upper portion 100, the It includes a support part 200 for supporting the upper part 100 and a fixing part 300 formed at a lower end of the support part 200 to fix the support part 200 to the bottom surface G.

Referring to FIG. 1 , the prefabricated worker protection mechanism 1 of the present invention includes an upper portion 100 , a support portion 200 , and a fixing portion 300 . The upper part 100 is formed above the worker P to protect the worker P. That is, when the worker (P) at the pipeline construction site performs work on the pipeline, the upper part 100 of the prefabricated worker protection mechanism (1) falls from the worker (P) to the operator (P) from soil, etc. (P) will be protected. The upper part 100 may be formed in a square plate shape as shown in FIG. 1 , and in another embodiment, the upper part 100 itself may be configured as a coupling structure, which will be described later.

The support part 200 is coupled downwardly from both ends of the upper part 100 to support the upper part 100 so that the upper part 100 can be fixed on the worker P. Since the prefabricated worker protection mechanism 1 of the present invention is prefabricated, it is manufactured to be easily coupled and separated between the upper part 100 and the support part 200, and the structure thereof will be described below.

The fixing part 300 is formed at the lower end of the support part 200 to fix the support part 200 to the bottom surface (G). The fixing unit 300 serves as a stake, and serves to fix the mechanism 1 by driving a stake to the bottom surface G in the prefabricated worker protection mechanism 1 .

2 is an exploded perspective view of the support 200 according to an embodiment of the present invention, and FIG. 3 is an upper part 100 of the present invention, a middle part 220 of the support part 200, and a lower part 210 of the support part 200. ) is a cross-sectional view showing the bonding structure between

In the prefabricated worker protection mechanism 1 according to an embodiment of the present invention, the support 200 is between the lower end 210 and the lower end 210 coupled to the fixing unit 300 and the upper portion 100 . It includes an intermediate part 220 that connects them.

In the prefabricated worker protection mechanism according to an embodiment of the present invention, the intermediate portion may be configured to be coupled to a plurality, the height of the prefabricated worker protection mechanism is adjusted according to the number of the intermediate portion.

The support unit 200 is divided into a lower end 210 and an intermediate portion 220 and assembled. The lower end 210 is coupled to the fixed portion 300 and serves to transmit the supporting force of the fixed portion 300 to the entire instrument 1, and the middle portion 220 is formed between the lower portion 210 and the upper portion 100. serves to connect.

The height of the prefabricated worker protection mechanism (1) must be adjustable according to the size of the pipe at the plumbing construction site or the depth of the place where the pipe is buried. At this time, the height of the prefabricated worker protection mechanism 1 is adjusted through the number of the intermediate parts 220 . Referring to FIG. 2 , one middle part 220 is formed, but by forming a plurality of intermediate parts 220 , the height of the mechanism 1 can be adjusted.

The coupling between the middle part 220 and the lower part 210 is made through the structure shown in FIG. 3 . A third groove portion 221 in the form of a groove formed from the bottom surface of the intermediate portion 220 toward the inside of the intermediate portion 220 may be formed in the intermediate portion 220 . A first protrusion 212 that is formed to protrude upward from the upper surface of the lower end 210 may be formed on the lower end 210 . Therefore, the coupling between the middle part 220 and the lower end 210 is fastened by inserting the first protrusion 212 into the third groove 221 . A hole communicating with the outside may be formed in the side surface of the third groove 221 , and the second fixing pin 213 built into the side of the first protrusion 212 is the first protrusion 212 is the third When the second fixing pin 213 faces the hole of the third groove 221 in the process of entering the groove 221 , it protrudes and spans between the third groove 221 and the first protrusion 212 . A space between the first protrusion 212 and the third groove 221 is fixed. The force by which the second fixing pin 213 protrudes is provided by the elastic force of the elastic part because an elastic part is formed in the hole to be formed on the side surface of the first protrusion 212 in which the second fixing pin 213 is disposed. . In the case of separating the coupling between the middle part 220 and the lower part 210 , the second fixing pin 213 is formed by pressing the second fixing pin 213 through a hole formed on the outside of the side surface of the third groove part 221 . The third groove part 221 and the first protrusion part 212 are separated by being separated from the third groove part 221 . The coupling structure of FIG. 3 as described above is not applied only to the coupling between the middle part 220 and the lower end 210, but is also applied to the coupling between the middle part 220 when the middle part 220 is configured in plurality. It is also applied to the coupling between both ends of the part 220 and the upper part 100 . The coupling structure between each component for constructing the present invention in a prefabricated manner is not limited to the coupling structure of FIG. 3 , and a conventional structure capable of efficiently separating and combining each component may be applied.

Referring to FIG. 2 , a connection part 130 protruding downward to be coupled to the middle part 220 is formed on the upper part 100 . A fourth groove part 131 is formed inside the connection part 130 . A second protrusion 222 is formed on the upper end of the middle portion 220 . The coupling between the middle part 220 and the lower part 210 was described above with the structure of FIG. 3 , and the coupling relationship between the middle part 220 and the connection part 130 also matches the structure of FIG. 3 and the basic structure. That is, as the second protrusion 222 is inserted and coupled to the fourth groove 131 , the connecting portion 130 is fixed to the intermediate portion 220 . However, the coupling structure between each component for constructing the present invention in a prefabricated manner is not limited to the coupling structure of FIG. 3 , and a conventional structure capable of efficiently separating and coupling each component may be applied.

Referring to FIG. 1 , it can be seen that a perforated hole penetrating the plate is formed in the configuration of the upper part 100 and the support part 200 of the present invention. The structure such as a hole passing through the plate is formed in the upper part 100 and the support part 200, when the soil covers the mechanism 1, a part of the soil flows out in the downward direction of the mechanism 1 to reduce the weight of the soil. This is to prevent the mechanism 1 from collapsing due to the weight of the soil by dispersing it. In addition, an empty space 214 is formed in the lower end 210 of the support unit 200 . The empty space 214 forms an empty space 214 to form an empty space 214 because the floor surface G is uneven when the apparatus 1 is installed, so that it is difficult for the apparatus 1 to be installed horizontally. It is formed to minimize the contact area. At this time, if too much soil is dropped under the mechanism 1, safety problems for the operator P may occur, so it is necessary to adjust the size or arrangement of the through-holes. This will be described in detail below.

4A is an exploded perspective view between the fixing part 300 and the lower end 210 according to an embodiment of the present invention, and FIG. 4B is a cross-sectional view of the fixing part 300 according to an embodiment of the present invention.

In the prefabricated worker protection mechanism 1 according to an embodiment of the present invention, at the lower end of the lower end 210 coupled to the fixing part 300 , the fixing part 300 is coupled to the first groove in the form of a groove. 211 is formed, and the fixing part 300 includes a body 310 inserted and coupled to the first groove 211 , and a second groove 320 formed in a groove shape inside the body 310 . ), the second groove portion 320 is coupled inside the pile portion 330 fixed to the bottom surface (G), the first to provide a certain force between the stake portion 330 and the second groove portion 320 When the first elastic part 340 is compressed so that a predetermined or more force is applied to the pile part 330 from the elastic part 340 and the first elastic part 340, the side surface of the pile part 330 is inside. It includes a first fixing pin 350 that is built-in and protrudes and is fixed to a hole formed through the side of the body portion 310 .

Referring to FIG. 4A , it can be seen that a screw thread is formed in the body part 310 constituting the body of the fixing part 300 . In addition, a first groove portion 211 is formed at the lower end of the intermediate portion 220 to correspond to the body portion 310 of the fixing portion 300 . Therefore, when assembling the mechanism 1 at the pipeline construction site, the fixing part 300 is coupled to the first groove part 211 by turning it.

Referring to FIG. 4B , the fixing part 300 includes a body part 310 , a second groove part 320 , a stake part 330 , a first elastic part 340 , and a first fixing pin 350 . The body part 310 constitutes the body of the fixing part 300 . The second groove portion 320 is formed in the form of a groove inside the body portion 310 . The second groove part 320 inside the pile part 330 fixed to the bottom surface (G) is coupled. In order for the pile part 330 to be deeply embedded in the bottom surface G to provide sufficient fixing force to the mechanism 1 , a certain force or more must be applied to the pile part 330 . To this end, the first elastic part 340 is formed between the pile part 330 and the second groove part 320 . After assembling the instrument (1), when a force is applied to the instrument in a top-down direction, the force is transmitted to the stake portion (330). At this time, when the force applied to the pile part 330 is equal to or greater than a predetermined force, the first elastic part 340 is contracted by the reaction force, and the force is applied to the pile part 330 . Therefore, if more than a certain force is not transmitted to the pile part 330 , the first elastic part 340 does not contract and the pile part 330 does not enter enough to be coupled to the second groove 320 . Through this mechanism, a force of a certain size required to fix the stake portion 330 to the second groove portion 320 is greater than a force sufficient to fix the stake portion 330 to the bottom surface (G) of the mechanism (1) to design Such a design can be realized by adjusting the elastic modulus or length of the first elastic part 340 . Accordingly, when a force of a certain size for fixing the pile part 330 to the bottom surface G is provided to the fixing part 300 , the first elastic part 340 is compressed as shown in FIG. 4b to the pile part 330 . ) enters the second groove 320 . At this time, the first fixing pin 350 built into the side of the pile part 330 protrudes and enters the hole formed through the side of the body part 310, the first fixing pin 350 is the pile part ( 330) and the body portion 310 by being spanned through the hole on the side of the stake portion 330 is fixed without moving. In addition, the first elastic part 340 serves to level the mechanism 1 by varying the degree of contraction of each elastic part in a situation in which the bottom surface G is uneven. The stake portion 330 includes a footrest 331 protruding outwardly, and the worker P steps on the footrest 331 to fix the stake portion 330 to the ground.

5A to 6B are views showing the upper part 100 according to another embodiment of the present invention.

In the prefabricated worker protection mechanism 1 according to an embodiment of the present invention, the upper portion 100 is a center connecting between the peripheral plate 120 and the peripheral plate 120 which are plates connected to the support 200 . plate 110 .

In the prefabricated worker protection mechanism 1 according to an embodiment of the present invention, the center plate 110 is a first perforation portion 112 including a plurality of holes penetrating in the thickness direction of the center plate 110 . is formed, and in the peripheral plate 120 , a second perforation 121 including a plurality of holes penetrating in the thickness direction of the peripheral plate 120 is formed.

In the prefabricated worker protection mechanism 1 according to an embodiment of the present invention, the first perforation 112 is in the center portion of the center plate 110 1/ of the transverse length of the center plate 110 . It is formed in the central region having a width of 3 and has a diameter of 1/10 of the longitudinal length of the central plate 110 , and the distance between the centers of each other is 2/ of the longitudinal length of the central plate 110 . A plurality of center perforated holes 112a formed in size 5 and formed in the center plate 110 except for the central region and formed with a diameter of 1/8 the length of the center plate 110 in the longitudinal direction, The distance between the centers of the center plate 110 is a plurality of intermediate perforation holes (112b) formed in the size of 1/4 of the length in the longitudinal direction; is composed of, the second perforation portion 121, the peripheral plate ( 120) with a diameter of 1/6 of the length in the longitudinal direction, and the distance between the centers of each other is 1/3 of the length in the longitudinal direction of the peripheral plate 120 as a plurality of outer perforated holes 121a. The central plate 110 and the peripheral plate 120 are formed to have the same longitudinal length, so that the vertical length of the upper part 100 is uniformly formed.

In the prefabricated worker protection mechanism 1 according to an embodiment of the present invention, the peripheral plate 120 is coupled to the central plate 110 by a rail 111 to slide on the central plate 110 . Thus, the horizontal length of the upper part 100, which is the distance between both ends of the upper part 100, is adjusted according to the distance at which the peripheral plate 120 slides from the central plate 110.

Referring to Figure 5a, a perspective view of the upper portion 100 in another embodiment of the present invention is shown. The upper portion 110 includes a peripheral plate 120 that is a plate connected to the support 200 and a center plate 110 that connects between the peripheral plate 120 . The peripheral plate 120 is formed to slide on the center plate 110 . A rail 111 is formed on the upper surface of the center plate 110 , and the peripheral plate 120 is coupled to the center plate 110 by the rail 111 to move on the center plate 110 . The horizontal length of the upper part 100, which is the distance between both ends of the upper part 100, is adjusted according to the distance at which the peripheral plate 120 slides from the central plate 110. Accordingly, it is possible to adjust the length of the width of the mechanism (1) according to the environment in which the mechanism (1) is installed.

Referring to FIG. 6A , in the center plate 110 , a first perforation portion 112 including a plurality of holes penetrating in the thickness direction of the center plate 110 is formed. A portion having a width equal to 1/3 of the horizontal length of the central plate 110 in the central portion of the central plate 110 is referred to as a central region. Since the central region is formed just above the space where the operator P performs the work, the size of the hole is relatively small in order to prevent a lot of soil from falling to the operator, and the gap between the holes is formed large. Referring to FIG. 1 , since the pipe is disposed below the central region, even if the instrument 1 sits down due to soil collapse, the central plate 110 of the upper part 100 is supported by the pipe, and the upper part 100 is supported by the pipe. The possibility of damage due to soil pressure is relatively lower than that of other areas. Therefore, compared to other regions of the upper portion 100, the size of the hole is formed in the central region to be smaller and the gap between the holes is formed to be wide. The hole formed in the central region is referred to as a central drilling hole 112a, and the diameter of the central drilling hole 112a is 1/10 the size of the longitudinal length of the central plate 110, and the central drilling hole 112a. The distance between the centers of each other is formed to be 2/5 of the longitudinal length of the center plate 110 .

A plurality of holes formed in a portion of the center plate 110 except for the central region is referred to as an intermediate perforated hole 112b. In the central plate 110 except for the central region, since the operator P does not often work in the downward direction, the size of the middle hole 112b is larger than the size of the center hole 112a. Even if it is, there is a low possibility that soil and soil will be rapidly applied to the worker P. In addition, since the region of the center plate 110 except for the central region cannot be supported by the pipe when the mechanism 1 collapses due to the soil and may be bent or bent by the weight of the soil, the intermediate drilling hole 112b is located in the center It is formed to be larger than the diameter of the perforation hole 112a, and the distance between the centers is formed to be small. The diameter of the middle hole (112b) is formed in the size of 1/8 of the longitudinal length of the center plate (110), the distance between the centers of the middle hole (112b) each other is 1/ of the longitudinal length of the center plate (110) It is formed in 4 sizes.

Referring to FIG. 6B , the second perforation 121 including a plurality of holes is formed in the peripheral plate 120 in the thickness direction of the peripheral plate 120 . The second perforation 121 is located at the farthest from the operator P in the upper portion 100, so that even if the soil falls down through the second perforation 121, there is a low possibility that the operator P is dangerous. At the same time, since it is located on the side close to the ground where the soil can fall intensively when the soil collapses, it is necessary to distribute the weight by the soil by dropping the soil applied to the peripheral plate 120 where the soil is concentrated. . Therefore, the plurality of outer perforation holes 121a of the second perforation 121 formed in the peripheral plate 120 have a larger diameter than the perforation holes of the first perforation and are located close to each other in order to drop more soil down. . The outer perforation hole 121a is formed with a diameter of 1/6 of the longitudinal length of the peripheral plate 120 , and the distance between the centers of each other is formed with a size of 1/3 of the longitudinal length of the peripheral plate 120 . .

The vertical length of the upper part 100 is formed to be constant. When installing the mechanism 1 in such a way that a plurality of prefabricated worker protection mechanisms 1 are arranged in a row, a gap is not generated between each mechanism 1 . To this end, the central plate 110 and the peripheral plate 120 are formed to have the same longitudinal length.

Referring to FIG. 5B , it can be seen that the coupling relationship between the center plate 110 and the peripheral plate 120 of the upper part 100 of the present invention is not limited by the rail 111 . Fifth grooves 113 are formed in the center plate 110 at both ends facing the peripheral plate 120 , and third protrusions 122 are formed in the peripheral plate 120 toward the fifth groove 113 . Accordingly, the center plate 110 and the peripheral plate 120 may be fixed while the third protrusion 122 is coupled to the fifth groove 113 . By forming a pin-like configuration to pass through the third protrusion 122 and the fifth groove 113 at the same time, the center plate 110 and the peripheral plate 120 can be fixed.

Referring to FIG. 5C , the upper portion 100 may be manufactured in a mesh shape. Since the upper part 100 is manufactured like a mesh shape, an empty space between the meshes can serve as the perforation hole described above. And although not shown in the drawings, it is natural that not only the upper part 100 but also the support part 200 may be manufactured in a mesh shape.

Referring to FIG. 5D , the handle portion 140 is formed on the lower surface of the upper portion 100 , so that the operator can securely fix the instrument 1 to the ground by pulling the handle portion 140 downward.

Although the present invention has been described in detail through specific examples, this is for the purpose of describing the present invention in detail, and the present invention is not limited thereto. It will be clear that the transformation or improvement is possible.

All simple modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims.

P: worker G: floor surface
1: prefabricated worker protection mechanism 100: upper
110: center plate 111: rail
112: first perforation 112a: center perforation hole
112b: middle drilling hole 113: fifth groove
120: peripheral plate 121: second perforation
121a: outer drilling hole 122: third protrusion
130: connection part 131: fourth groove part
140: handle 200: support
210: lower portion 211: first groove portion
212: first protrusion 213: second fixing pin
220: middle part 221: third groove part
222: second protrusion 300: fixed part
310: body 320: second groove
330: pile part 331: footrest
340: first elastic part 350: first fixing pin

Claims (9)

an upper portion formed on the operator to protect the operator;
a support portion coupled in a downward direction from both ends of the upper portion to support the upper portion; and
and a fixing part formed at the lower end of the support part to fix the support part to the bottom surface;
The support portion includes a lower end having a first groove in the form of a groove at the lower end coupled to the fixing portion, and a middle portion connecting the lower end and the lower portion,
The fixing part includes a body part inserted and coupled to the first groove part, a second groove part formed in a groove shape inside the body part, a pile part coupled to the inside of the second groove part and fixed to the bottom surface, the pile part and the second groove part. When the first elastic part is compressed so that a predetermined force is applied to the pile part and a first elastic part providing a certain force between the two groove parts, the first elastic part is built into the side of the pile part and then protrudes out It includes a first fixing pin fixed to the hole formed through the side of the body portion,
A perforated hole is formed in the upper part and the support part, the prefabricated worker protection mechanism. delete The method according to claim 1,
The intermediate portion may be configured to be coupled to a plurality of parts, the height of the prefabricated worker protection mechanism is adjusted according to the number of the intermediate portion, the prefabricated worker protection mechanism. delete delete The method according to claim 1,
the upper part,
A prefabricated worker protection mechanism comprising a peripheral plate that is a plate connected to the support and a center plate that connects between the peripheral plates. 7. The method of claim 6,
The center plate is
A first perforation including a plurality of holes penetrating in the thickness direction of the center plate is formed,
The peripheral plate is
The prefabricated worker protection mechanism is formed with a second perforation comprising a plurality of holes penetrating in the thickness direction of the peripheral plate. 8. The method of claim 7,
The first perforation part,
It is formed in a central region having a width of 1/3 of the horizontal length of the central plate in the central portion of the central plate and has a diameter of 1/10 of the longitudinal length of the central plate, and the distance between the centers of each other a plurality of center perforated holes having a size of 2/5 of the longitudinal length of the center plate; and
It is formed on the center plate except for the central region and has a diameter of 1/8 of the longitudinal length of the central plate, and the distance between the centers is 1/4 of the longitudinal length of the central plate. Consists of a plurality of intermediate perforated holes;
The second perforation part,
It is formed with a diameter of 1/6 of the longitudinal length of the peripheral plate, and the distance between the centers of each other is composed of a plurality of outer perforated holes formed with a size of 1/3 of the longitudinal length of the peripheral plate,
The prefabricated worker protection mechanism is formed so that the longitudinal length of the center plate and the peripheral plate is the same so that the longitudinal length of the upper part is uniformly formed. 7. The method of claim 6,
The peripheral plate is coupled to the central plate by a rail so as to slide on the central plate, and the length in the transverse direction of the upper part is the distance between the upper ends according to the distance the peripheral plate slides from the central plate. Controlled, prefabricated worker protection mechanism.

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