KR102664735B1 - System for mounting of ladder for manhole entry by improving support on the ground - Google Patents

Abstract

The present invention relates to a guard system that allows entry into a manhole by mounting a ladder, comprising: a body unit that forms a body, is provided in a predetermined shape, and is optionally formed perpendicular to the ground; a bridge unit formed at the lower part of the body unit and provided to support the ground by contacting the ground; and a holding unit that extends from the body unit and allows a ladder to be mounted thereon.

Description

{System for mounting of ladder for manhole entry by improving support on the ground}

The present invention relates to a ladder mounting system for entering a manhole that can improve the bearing capacity on the ground. More specifically, the present invention relates to a ladder mounting system for manhole entry, which holds a mobile ladder and supports the ground to guard the mobile ladder from the ground when the mobile ladder is introduced into the manhole. It relates to a guard system for mounting a ladder that makes it possible.

A manhole is a facility through which people enter for inspection and cleaning of sewer pipes, and connection and joining of pipes.

There is a passage in the middle of the sewer pipe that allows people to go down vertically through a manhole. This is a hole made to allow people to go in and out to inspect, repair, or clean water and sewer pipes buried in the ground, power, communication, etc. wiring, or on the deck of a ship, etc. It corresponds to a hatch that allows people to enter and exit.

In order to manage industrial facilities and perform inspection and repair work, it is necessary to regularly open manhole covers and enter underground confined spaces, but if work is done without appropriate protective equipment or rescuers, the damage resulting from accidents or disasters increases.

However, manpower must be invested to manage various facilities, and for this purpose, research is underway to ensure safety.

For example, there is a prior patent document titled “Manhole with a Ladder with Improved Safety (Registration No. 10-1456703, hereinafter referred to as Patent Document 1)” for providing a ladder with improved safety in the manhole.

In the case of Patent Document 1, it relates to a manhole equipped with a ladder with improved stability, and more specifically, to allow people working at a construction site to go in and out to inspect, repair, or clean pipes or sewer pipes buried in the ground. The created manhole includes a first ladder provided on the inner wall of the main body and a second ladder on a cone coupled to the upper part of the main body, and the second ladder is arranged vertically on the inner surface of the longitudinal passage coupled to the cone. , By providing a second ladder in a position corresponding to the first ladder, people working using the first and second ladders can move safely and conveniently, reducing the risk of falling when entering or exiting a manhole, thereby increasing stability. , relates to a manhole equipped with a ladder with improved stability that can ensure convenience for easy entry and exit from the manhole.

In addition, there is a “height-adjustable safety ladder for manholes (Registration No. 10-2219118, hereinafter referred to as Patent Document 2).”

The height-adjustable safety ladder for a manhole of Patent Document 2 is installed inside the manhole in a long and parallel direction in the vertical direction of the manhole, is in the form of a square pipe with a hollow interior, and has first left and right pillars with open upper ends, and first left and right pillars. A plurality of fixing brackets that secure the pillars to the inner wall of the manhole, guide grooves formed long from the top to the bottom of the faces of the first left and right pillars facing each other, and first first pillars installed at regular intervals along the vertical direction. Manhole ladder main body consisting of a scaffold part; The second left and right pillars are respectively inserted inside the first left and right pillars and can be withdrawn from the outside of the manhole to the top and drawn in to the bottom, and are installed at regular intervals along the vertical direction, and the first left and right pillars are installed at regular intervals. When the second left and right pillars are withdrawn from the second left and right pillars and the second left and right pillars are introduced into the first left and right pillars, a second footrest part is guided up and down along the guide groove, and is provided in the middle of the second left and right pillars, and the first left and right pillars When the second left and right pillars are introduced into the outlet, they are inserted into the first left and right pillars, and after the second left and right pillars are withdrawn from the first left and right pillars, the second left and right pillars drawn out from the first left and right pillars are connected to the first left and right pillars. It includes a height-adjustable ladder body consisting of fixing means for fixing the second left and right pillars to the first left and right pillars to prevent them from entering the interior.

In addition, a “manhole structure including a folding ladder (Registration No. 10-1730169, referred to as Patent Document 3)” exists.

In the case of Patent Document 3, it relates to a structure including a ladder for entering a manhole structure.

The manhole structure including a folding ladder according to Patent Document 3 is a manhole structure consisting of a work space formed underground and a passage connecting the work space and the ground, and a guide rail and guide installed on the passage side on the upper surface of the work space. It includes a body ladder installed to be able to slide along a rail, a ladder whose one end is hinged to the upper part of the body ladder, and a lower ladder whose one end is coupled to be able to slide up and down along a guide hole formed in the vertical direction on the side of the body ladder, A connecting member is installed at one end of the body ladder to hinge the upper ladder and the body ladder to each other, and a first fixing means curved upward is installed on the wall in the direction where the passage guide rail is installed, and the passage guide rail is installed. A second fixing means curved upward is installed on the wall in the opposite direction, so that the upper ladder can be hung on the first fixing means or the second fixing means.

Manholes are an environment in which installed facilities quickly corrode due to the breathing and decay of bacteria and germs such as sewage and sewage. Even though a ladder is provided inside, stability is not secured. Therefore, as in the case of Patent Document 1, a ladder is provided inside. If this happens, continuous stability cannot be secured.

In addition, when adjusting the height of the ladder, a problem occurs in which stability is not secured due to corrosion or weakening of the connection part.

Registration number 10-1456703 Registration number 10-2219118 Registration number 10-1730169

The ladder mounting system for entering a manhole capable of improving the bearing capacity on the ground according to the present invention was designed to solve the conventional problems described above, and presents the following problems to be solved.

First, it allows manpower to enter the manhole where a ladder is not installed.

Second, it supports the ground and supports and holds the ladder to enable safe entry from the ground into the manhole.

Third, it is possible to simply mount and fix a ladder for entry into the manhole.

The problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

The ladder mounting system for entering a manhole capable of improving the bearing capacity on the ground according to the present invention has the following means for solving the problem to be solved.

The ladder mounting system for entering a manhole capable of improving the bearing capacity on the ground according to the present invention is a guard system that allows entry into a manhole by mounting a ladder. It forms a body and is provided in a predetermined shape, and is optionally installed perpendicular to the ground. A body unit formed; a bridge unit formed at a lower portion of the body unit and provided to contact the ground and support the ground; and a holding unit extending from the body unit and allowing the ladder to be mounted.

The body unit of the ladder mounting system for manhole entry capable of improving support against the ground according to the present invention includes a support portion extending on both sides to distribute force from the body; a holding part provided on the upper part of the body and forming a grip area; and a first fixing part provided to be spaced apart from the lower part of the holding part and connecting the supporting parts formed on both sides.

The body unit of the ladder mounting system for manhole entry capable of improving support for the ground according to the present invention is formed spaced apart from the lower part of the first fixing part, connects the supporting parts formed on both sides, and includes the holding unit. It is characterized by including a second fixing part for fixing.

The bridge unit of the ladder mounting system for manhole entry capable of improving support for the ground according to the present invention includes a leg portion provided in a longitudinal direction from one end to the other, the lower end of which supports the ground; and a pressing part that extends from the leg part, the front surface of the lower part contacts the ground, and the front surface of the upper part is pressed by an external force.

The bridge unit of the ladder mounting system for manhole entry capable of improving support for the ground according to the present invention is provided at the bottom of the leg portion and includes a friction portion formed in a predetermined shape to form friction with the ground. It is characterized by

The bridge unit of the ladder mounting system for manhole entry capable of improving support against the ground according to the present invention includes a slope portion forming a predetermined slope from the leg portion and extending to the pressing portion; and a distribution unit that forms a predetermined distribution hole between the pressing unit and the leg unit to disperse the external force provided from the pressing unit through the distribution hole.

The bridge unit of the ladder mounting system for manhole entry capable of improving support against the ground according to the present invention is formed to protrude and extend from the upper part of the leg portion, and is characterized in that it includes a guide portion that inserts the lower end of the body unit. .

The body unit of the ladder mounting system for entering a manhole capable of improving support for the ground according to the present invention is formed at the bottom of the body unit, is formed at the bottom of the supporting part, and includes a holding body part that is inserted into the guide part. It is characterized by:

The guide part of the ladder mounting system for manhole insertion capable of improving support against the ground according to the present invention forms fixing holes penetrating on both sides, and includes a fixing part provided to simultaneously penetrate the fixing holes, wherein the holding body The part is characterized by forming a fixed curved surface so as to be concave at a predetermined position from the bottom.

The fixing part of the ladder mounting system for entering a manhole capable of improving the bearing capacity on the ground according to the present invention is inserted into the fixing hole formed in the guide part when the holding body part is inserted into the guide part and is formed in the holding body part. The fixing part is fixed according to a fixed curved surface to suggest random movement of the body unit.

The ladder mounting system for entering a manhole capable of improving the bearing capacity on the ground according to the present invention with the above configuration provides the following effects.

First, by forming a body and allowing a ladder to be mounted on the body, the body can be provided on the ground and the ladder can be fixed.

Second, it supports the ground, and through a body that is selectively perpendicular to the ground, it supports the ground and secures the ladder and forms a grip area to protect personal safety through external manpower.

Third, in addition to supporting the ground, it provides support by external force, making it possible to secure the ladder and the body.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

Figure 1 is a perspective view of the body unit of the ladder mounting system for entering a manhole capable of improving support for the ground according to an embodiment of the present invention in an erected form.
Figure 2 is a perspective view of the body unit of the ladder mounting system for entering a manhole capable of improving support for the ground according to an embodiment of the present invention in a folded form.
Figure 3 is a perspective view of a bridge unit among the ladder mounting systems for entering manholes capable of improving support for the ground according to an embodiment of the present invention.
Figure 4 is a perspective view showing the body unit being fixed through the fixing part in the erected state of the ladder mounting system for entering a manhole capable of improving support for the ground according to an embodiment of the present invention.
Figure 5 is a perspective view showing a ladder coupled to a holding unit among the ladder mounting systems for entering manholes capable of improving support for the ground according to an embodiment of the present invention.
Figure 6 is a perspective view showing a rear view of a ladder mounting system for entering a manhole capable of improving support for the ground according to an embodiment of the present invention.

The ladder mounting system for manhole entry capable of improving the bearing capacity on the ground according to the present invention can be modified in various ways and can have several embodiments. Specific embodiments will be illustrated in the drawings and described in detail in the detailed description. . However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the technical spirit and scope of the present invention.

Figure 1 is a perspective view of the body unit of the ladder mounting system for entering a manhole capable of improving support for the ground according to an embodiment of the present invention in an erected form. Figure 2 is a perspective view of the body unit of the ladder mounting system for entering a manhole capable of improving support for the ground according to an embodiment of the present invention in a folded form. Figure 3 is a perspective view of a bridge unit among the ladder mounting systems for entering manholes capable of improving support for the ground according to an embodiment of the present invention. Figure 4 is a perspective view showing the body unit being fixed through the fixing part in the erected state of the ladder mounting system for entering a manhole capable of improving support for the ground according to an embodiment of the present invention. Figure 5 is a perspective view showing a ladder coupled to a holding unit among the ladder mounting systems for entering manholes capable of improving support for the ground according to an embodiment of the present invention. Figure 6 is a perspective view showing a rear view of a ladder mounting system for entering a manhole capable of improving support for the ground according to an embodiment of the present invention.

The present invention corresponds to a guard system that allows entry into a manhole by mounting a ladder. It mounts a ladder to allow manpower to enter the manhole, and supports the body by guarding the ladder and external force to prevent the ladder from leaving. It corresponds to the system.

The ladder mounting system for manhole entry capable of improving ground support according to the present invention includes a body unit (100), a bridge unit (200), and a holding unit (300).

First, the body unit 100 forms a body, is provided in a predetermined shape, and is optionally formed perpendicular to the ground.

Additionally, the bridge unit 200 is formed at the lower part of the body unit 100 and is provided to support the ground by contacting the ground.

The holding unit 300 is provided to extend from the body unit 100 and allows the ladder to be mounted.

As shown in Figure 5, the guard system is equipped with a ladder entering the manhole, and a part of the bridge unit 200 is fixed by a person along with the ladder entering the manhole from one side, so that the body is inserted into the manhole or Random movements can be prevented from being provided.

The body unit 100 may be selectively folded and erected, as shown in FIGS. 1 and 2 .

When the body unit 100 is provided in an erected form, the bridge unit 200 may be provided to maintain the verticality of the bridge unit 200 and the body unit 100, and may be used to fix the body unit 100, This is to enable the body unit 100 to stand.

Additionally, when the body unit 100 is provided in a folded state as shown in FIG. 2, the bridge unit 200 and the body unit 100 are folded in parallel.

As shown in FIG. 1, the holding unit 300 is formed in a structure capable of holding a ladder, and can hold and hold a ladder.

The body unit 100 of the ladder mounting system for manhole entry capable of improving the bearing capacity on the ground according to the present invention includes a supporting part 110, a holding part 120, a first fixing part 130, and a second fixing part ( 140).

In the case of the supporting parts 110 and 110', they are formed to extend on both sides to distribute force from the body.

As shown in FIG. 1, the body unit 100 is provided in a form extending from the body to both sides.

Additionally, the holding portion 120 is provided on the upper part of the body and forms a grip area. The supporting parts 110 and 110' extend from the holding part 120.

In the case of the first fixing part 130, it is provided to be spaced apart from the lower part of the holding part 120, and the supporting parts 110 and 110' formed on both sides are connected to each other on one side and the other side.

In the case of the second fixing part 140, it is formed to be spaced apart from the lower part of the first fixing part 130, and the supporting parts 110 and 110' formed on both sides are connected to each other on one side and the other side.

Additionally, the second fixing part 140 fixes the holding part 300.

The bridge unit 200 of the ladder mounting system for entering a manhole capable of improving the bearing capacity on the ground according to the present invention is configured to include a leg portion 210 and a pressing portion 220.

In the case of the leg portion 210, it is provided in a longitudinal direction from one end to the other end, and the lower end supports the ground.

The pressing part 220 extends from the leg part 210, and the front surface of the lower part contacts the ground, and the front surface of the upper part is pressed by an external force.

The leg portion 210 can be said to form the body of the bridge unit 200, and as shown in FIGS. 3 and 4, the lower portion of the leg portion 210 supports the ground.

As shown in Figure 4, the pressing part 220 is provided in a form that supports the ground at the lower front, and is provided by extending from the leg part 210.

The leg portion 210 and the pressing portion 220 are provided in a form that forms a predetermined inclination and extends through the slope portion 240.

One side of the slope portion 240 extends from the upper part of the leg portion 210, and the other side is connected to and extends from the pressing portion 220.

In addition, the bridge unit 200 forms a friction part 230, and in the case of the friction part 230, a leg part 210 is formed at the bottom to form friction with the ground.

As shown in FIG. 3, the friction part 230 may be provided as a ground contact part 231 that is in contact with the ground and a space forming part 232 that is not in contact with the ground. The ground contact part 231 is in contact with the ground. It creates friction, and the space forming portion 232 forms a constant space with the ground so that the bridge unit 200 can support the ground even on uneven ground.

In the case of the ground, it is often provided in an uneven state, and in the case of uneven ground, if it is provided in a form that does not provide friction, arbitrary movement may be formed due to pushing or external force.

The friction portion 230 provides friction to prevent movement due to pushing or external force.

The bridge unit 200 of the ladder mounting system for entering a manhole capable of improving the bearing capacity on the ground according to the present invention is configured to include a dispersion unit 250.

In the case of the distribution unit 250, a predetermined distribution hole 251 is formed between the pressing unit 220 and the leg unit 210 to disperse the external force provided from the pressing unit 220 through the distribution hole 251. do.

As shown in FIG. 3, the distribution hole 251 is provided as a predetermined hole and is provided on the side between the leg portion 210 and the pressing portion 220.

A predetermined slot 252 is formed between the leg part 210 and the pressing part 220 from the distribution hole 251, and the external force provided from the pressing part 220 is distributed through the predetermined slot 252. We can make this happen.

The width of the slot 252 is provided as a predetermined width from the distribution hole 251, and the width of the slot 252 may increase as it goes downward.

In the case of the distribution hole 251 and the slot 252, as shown in FIG. 3, they may be formed on the side where the leg part 210 and the pressing part 220 are connected.

As shown in FIG. 3, the pressing part 220 may be provided in a form in which the upper part of the pressing part 220 is connected to the leg part 210, and the side surfaces may be spaced apart due to the slots 252.

In the case of the slot 252, the external force provided from the pressing unit 220 and the external force provided to the leg unit 210 can be differentiated to prevent arbitrary movement of the leg unit 210.

The bridge unit 200 of the ladder mounting system for entering a manhole capable of improving the bearing capacity on the ground according to the present invention extends from the upper part of the leg portion 210 and is formed to protrude, and is a guide that inserts the lower end of the body unit 100. It is a configuration including a unit 260.

As shown in FIG. 3 , the guide portion 260 protrudes from the leg portion 210 and is formed to protrude from the upper portion of the leg portion 210 .

In addition, the guide part 260 is formed to have the same width as both sides of the leg part 210, and as shown in FIG. 3, one side is provided in an open form, and the other side is provided in a closed form as shown in FIG. 5. It is preferable that it be provided in this form.

The body unit 100 of the ladder mounting system for manhole entry capable of improving the bearing capacity on the ground according to the present invention is formed at the bottom of the body unit 100 and at the bottom of the supporting part 110, and includes a guide part ( 260) and includes a holding body portion 150 that is introduced into the inside.

In the case of the holding body portion 150, which extends to the lower part of the supporting portion 110 of the body unit 100, the holding body portion 150 is connected to the guide portion 260 and guides around a fixed axis. It is introduced into unit 260.

As shown in FIG. 2, the upper part of the guide part 260 and the holding body part 150 are connected, and the bridge unit 200 and the body unit 100 remain connected even when the body unit 100 is folded. You can.

In addition, when the body unit 100 is erected, the body unit 100 is erected around the portion where the guide portion 260 and the holding body portion 150 are connected, and the body unit 100 is connected to the bridge unit 200. Make sure not to stray from it.

As shown in FIG. 2, the guide portion 260 fixes a portion of the holding body portion 150 of the body unit 100, thereby enabling the body unit 100 to be folded and erected around the fixed portion.

The guide part 260 of the ladder mounting system for manhole entry capable of improving the bearing capacity on the ground according to the present invention is provided to simultaneously penetrate the fixing holes 261 by forming fixing holes 261 penetrating on both sides. Includes a fixing unit 262.

The holding body portion 150 forms a fixed curved surface that is concave at a predetermined position from the bottom.

As shown in FIG. 2, a downwardly concave fixing curved surface 151 is formed at a predetermined position in the holding body part 150, and the fixing curved surface 151 is formed in the fixing hole 261 formed in the guide part 260. It must be provided in a location consistent with its location.

In the case of the fixing hole 261, it passes through the fixing part 262, and in the case of the fixing curved surface 151, a curved surface is formed to prevent the fixing part 262 from being separated.

The fixing part 262 of the ladder mounting system for entering a manhole capable of improving the bearing capacity on the ground according to the present invention is a fixing hole formed in the guide part 260 when the holding body part 150 is inserted into the guide part 260. and the fixing part 262 is fixed according to the fixed curved surface formed on the holding body part 150, suggesting arbitrary movement of the body unit 100.

In the case of the body unit 100, the forward and backward movement of the holding body part 150 is prevented through the fixing part 263 formed on the other side of the side part 260, and the fixing part 262 is attached to the fixing curved surface 151. ) is fixed, preventing forward and backward movement, left and right direction, and random deviation.

As shown in FIG. 6, a person holds the holding unit 120 and fixes the pressing unit 220 with his or her feet, and the holding unit 300 is installed inside the manhole by fixing the ladder 1. A ladder can be inserted.

The scope of rights of the present invention is determined by the matters stated in the patent claims, and parentheses used in the patent claims are not used for selective limitation, but are used for clear elements, and descriptions within parentheses are also interpreted as essential elements. It has to be.

1: ladder
100: body unit
110: Support department
120: holding part
130: First fixing unit
140: Second fixing unit
150: Holding body part
151: Fixed surface
200: Bridge unit
210: Leg part
220: pressing unit
230: Fraction unit
231: Ground contact part
232: Space forming part
240: Slope part
250: dispersion unit
251: Dispersion hole
252: slot
260: Guide unit
261: Fixing hole
262: Fixing unit
300: holding unit

Claims (10)

In the guard system that allows manhole entry by mounting a ladder,
a body unit that forms a body, is provided in a predetermined shape, and is optionally formed perpendicular to the ground;
a bridge unit formed at a lower portion of the body unit and provided to contact the ground and support the ground; and
Includes a holding unit extending from the body unit and allowing the ladder to be mounted,
The body unit is,
Supporting parts extending on both sides to distribute force from the body;
a holding part provided on the upper part of the body and forming a grip area;
a first fixing part provided to be spaced apart from a lower part of the holding part and connecting the supporting parts formed on both sides; and
It is formed to be spaced apart from the lower part of the first fixing part, connects the supporting parts formed on both sides, and includes a second fixing part for fixing the holding unit,
The bridge unit is,
A leg portion provided in a longitudinal direction from one end to the other, the lower end of which supports the ground;
a pressing part that extends from the leg part, has a lower front surface in contact with the ground, and an upper front surface that is pressed by an external force;
a slope portion forming a predetermined slope from the leg portion and extending to the pressing portion; and
Manhole entry capable of improving support against the ground, characterized in that it includes a distribution unit that forms a predetermined distribution hole between the pressing unit and the leg unit to disperse external force provided from the pressing unit through the distribution hole. Ladder mounting system.
delete delete delete The method of claim 1, wherein the bridge unit,
A ladder mounting system for entering a manhole capable of improving support against the ground, characterized in that it is provided at the bottom of the leg portion and includes a friction portion formed in a predetermined shape to create friction with the ground.
delete The method of claim 1, wherein the bridge unit,
A ladder mounting system for entering a manhole capable of improving support against the ground, characterized in that it extends from the upper part of the leg part and includes a guide part that protrudes and inserts the lower end of the body unit.
The method of claim 7, wherein the body unit:
A ladder mounting system for entering a manhole capable of improving support against the ground, characterized in that it includes a holding body portion formed at the bottom of the body unit, formed at the bottom of the supporting portion, and inserted into the guide portion.
The method of claim 8, wherein the guide unit,
Forming fixing holes penetrating on both sides and including a fixing part provided to simultaneously penetrate the fixing holes,
The holding body part,
A ladder mounting system for manhole entry capable of improving support on the ground, characterized in that a fixed curved surface is formed to be concave at a predetermined position from the bottom.
The method of claim 9, wherein the fixing unit,
When the holding body part is inserted into the guide part, it is inserted into a fixing hole formed in the guide part and the fixing part is fixed according to the fixing curved surface formed in the holding body part, thereby suggesting random movement of the body unit. , A ladder mounting system for manhole entry that can improve ground support.