KR20140033737A

KR20140033737A - Manhole

Info

Publication number: KR20140033737A
Application number: KR1020120099952A
Authority: KR
Inventors: 이광열
Original assignee: 이광열
Priority date: 2012-09-10
Filing date: 2012-09-10
Publication date: 2014-03-19

Abstract

A manhole according to the present invention comprises: a manhole body having a cylindrical shape whose center part is penetrated; at least one support unit protruding from and formed along the inner surface of the manhole body; a rotatory unit having a first polygonal insertion groove provided on the center thereof and insertion units provided by protruding from both ends thereof; a manhole cover having a circular shape and a second circular insertion groove provided on the center thereof; an operation unit having a groove, in which an equipment is inserted, formed on the upper end thereof, the upper part provided with a cylindrical shape, and the lower part provided with a multi-stage polygonal column shape corresponding to the first insertion groove. The operation unit has the polygonal column of the lower part inserted into the first insertion groove and the cylinder of the upper part inserted into the second insertion groove, and rotates for the insertion units to move to the lower end of the support unit and to prevent the manhole cover from being opened.

Description

Manhole {MANHOLE}

The present invention relates to a manhole, and more specifically, the manhole cover can be opened by only one operator by a simple operation, and the manhole locking device is easy to operate even in case of corrosion by long time, and overflows from the sewer pipe during the rainy season. The present invention relates to a manhole that can prevent the manhole cover from being removed by rainwater.

In general, a manhole is installed on a road to inspect or manage facilities such as water and sewage pipes, city gas pipes, communication facilities, and electric facilities buried underground, and the manhole is mainly manufactured using cast iron, and is used for pedestrians or vehicles. The manhole cover is installed as an opening and closing means to allow the worker to enter and exit the manhole in case of emergency.

The conventional manhole as described above is composed of a manhole body installed on the ground and a manhole cover seated on the manhole body to block holes. The conventional manhole structure is composed of a manhole body provided with a locking jaw in a cylindrical shape with an open center, and a manhole cover seated on the locking jaw.

However, in the conventional manhole configuration, the manhole cover is merely placed on the locking jaw of the manhole body so that the vehicle is separated by an impact when the vehicle passes at a high speed. In this case, the detached cover travels around the vehicle. There is a possibility that it may act as a cause of an accident, and the manhole body opened by the cover is detached may cause pedestrians to fall out or wheels of the vehicle may fall, causing a big accident.

In addition, there was a problem that the manhole cover is naturally removed due to repeated impact.

In this regard, the technology related to the safety manhole structure is disclosed as Korea Patent Publication No. 10-2011-0025507, but by inserting the protrusion key provided on one side of the manhole cover into the insertion groove by rotation to the exact position of the heavy manhole There is a problem that is difficult to rotate.

In addition, there is a problem that takes a long time to open the manhole cover due to corrosion or foreign matter between the protruding key and the insertion groove by a long time.

Republic of Korea Patent Publication No. 10-2011-0025507 (2011.03.13)

The present invention has been made to solve the above problems, an object of the present invention is to provide a manhole to prevent the removal of the manhole cover is inserted into the lower end of the support portion by the rotation of the support portion inside the manhole body.

In addition, the insertion hole is provided in a tapered shape in which the thickness thereof becomes thicker from one side to the other side, and the insertion hole is in close contact with the lower end of the support to provide a manhole in which the position of the manhole cover can be stably fixed.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems to be solved by the present invention, which are not mentioned here, can be clarified to those skilled in the art from the following description It can be understood.

The manhole according to the present invention is provided with a polygonal manhole body through which a center is penetrated and at least one support part formed by protruding along the inner surface of the manhole body, and a first insertion groove having a polygonal shape, and protruding from both ends. It is formed in the shape of the rotating portion and the disc is provided with the insertion hole is formed, the manhole cover is provided in the center of the circular second insertion groove and the top is provided with the groove into which the equipment is inserted, the upper portion is cylindrical shape and the lower portion is the first insertion And an operation part formed to be multi-stage in a polygonal column shape corresponding to the groove, wherein the operation part has a lower polygonal column inserted into the first insertion groove, and an upper cylinder inserted into the second insertion groove. The insertion hole is moved to the lower end of the support by the rotation of the negative portion is characterized in that the manhole cover is not opened.

One side of the support and the inside of the manhole body, characterized in that the first movement preventing and restraining the movement of the rotating part is provided respectively.

On the upper end of the manhole cover, a third insertion groove having an inclined surface inwardly is provided to insert a tool necessary for opening the manhole cover, and on the lower end of the manhole cover, the second movement preventing device is inserted to the manhole A fourth insertion groove is provided to restrain the movement of the cover.

It is formed in the 'c' shape is inserted into the lower portion from the upper end of the manhole cover is provided on the third movement preventing and restraining the movement of the rotating portion and the upper end of the manhole cover, the fifth insertion groove into which the third movement preventing opening is inserted And a release preventing device inserted into an end of the third movement preventing device to prevent the third movement preventing device from escaping to the outside of the manhole cover, and fastened to an end of the third movement preventing device so that the release preventing device moves to the third movement. It characterized in that it comprises a nut for preventing the departure from the prevention.

The insertion hole is formed in a tapered shape that increases in thickness from one side to the other side, characterized in that the upper end is formed with a projection to reduce the frictional force with the support.

One side of the manhole body on which the manhole cover is seated, characterized in that the mounting groove is further provided to reduce the contact surface between the manhole cover and the manhole body.

By the means for solving the above problems, the manhole according to the present invention, the insertion hole is inserted into the lower end of the support portion by the rotation of the support portion inside the manhole body has an effect of preventing the manhole cover from being removed without opening the manhole cover.

In addition, the insertion hole is provided in a tapered shape, the thickness of which becomes thicker from one side to the other side, and a protrusion is formed at the upper end of the insertion hole to facilitate insertion of the insertion hole into the lower end of the support, and at the same time, the frictional force with the support is reduced, so that it can be operated with a small force. And, the insertion hole is in close contact with the bottom of the support has the effect that the position of the manhole cover can be fixed stably.

1 is a perspective view of the entire cross-section of the manhole according to the present invention.
Figure 2 is a perspective view of the manhole body of the manhole according to the present invention.
3 is a perspective view of a rotating part of the manhole according to the present invention.
Figure 4 is a perspective view of the manhole cover of the manhole according to the present invention.
5 is a perspective view of the operating portion of the manhole according to the present invention.
Figure 6 is a side view of the operating portion containing the spring of the manhole according to the invention.
Figure 7 is a side view of the third movement preventing device of the manhole according to the present invention.
8 is a sectional view of the manhole body of the manhole according to the present invention.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent by reference to an embodiment which will be described in detail below with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the accompanying drawings.

As shown in FIG. 1, the manhole of the present invention includes a cylindrical manhole body 10, a support part 11 formed on the inner surface of the manhole body, and a rotating part 20 provided inside the manhole body 10. And a manhole cover 30 covering the upper part of the manhole body 10 and an operation part 40 to rotate the rotating part.

First, the manhole body 10 is provided in the manhole which is this invention. As shown in FIG. 2, the manhole body 10 is formed in a cylindrical shape through which a central portion thereof is penetrated, and an upper end thereof is located on the same line as the ground, and is formed in multiple stages inward. That is, the surface formed to be multi-stage inwardly forms the surface on which the manhole cover 30 to be described below is seated to support the manhole cover 30.

The support part 11 is provided in the inner surface of the manhole body 10. At least one of the supporting parts 11 protrudes along the inner surface of the manhole body 10, and an insertion hole 22 of the rotating part 20 to be described below is positioned at the lower end of the supporting part 11. .

The rotating part 20 is provided inside the manhole body 10. As shown in FIG. 3, the rotation part 20 is provided with a first insertion groove having a polygonal shape at a central portion thereof, and an insertion hole formed at both ends thereof so as to protrude in a shape corresponding to an inner surface of the manhole body 10. 22) is provided. That is, the first insertion groove 21, the operation unit 40 to be described below is inserted so that the rotation unit 20 is rotated by the rotation of the operation unit 40. In addition, the insertion holes provided at both ends of the rotating part 20 are moved to the lower end of the supporting part 11 by the rotation of the rotating part 53, so that the rotating part 20 is separated from the manhole body 10. It prevents you from doing it.

In addition, the insertion hole 22 is formed in a tapered shape whose thickness increases from one side to the other side. This, when moving to the lower end of the support 11, it is possible to move without being caught by the lower end of the support 11, in close contact with the lower end of the support 11 in accordance with the rotation radius of the rotating part 20 is the rotating part 20 It is effective in preventing play.

In addition, a protrusion 23 is provided at an upper end of the insertion hole 22. The protrusion 23 is formed in a continuous line on the upper end of the insertion hole 22 or hepaticly formed on the upper end of the insertion hole 22 in a semicircular shape so that the insertion hole 22 moves to the lower end of the support part 11. Therefore, the frictional force is reduced by minimizing the contact surface. When the manhole of the present invention is left for a long time, the insertion hole 22 and the support 11 are prevented from sticking due to rust generation on the contact surface. That is, even if a small force is applied to the operating part 40 which enables the rotating part 20 to be rotatable, the rotating part 20 can be rotated.

In addition, one side of the support part 11 is provided with a first movement preventing tool 12. The first movement preventing tool 12, as shown in Figure 2, serves to restrain the movement of the rotating unit 20. That is, the support part 11 is formed to protrude downwardly by the thickness of the insertion hole 22 so that the rotation part 20 is rotated so that the insertion hole 22 is accurately positioned at the lower end of the support part 11. The role of recognizing that the rotating part 20 is seated on the lower end of the support (11).

In addition, a second movement preventing device 13 is provided inside the manhole body 10. The second movement preventing device 13 is formed on the other side when the rotary part 20 rotates so that the insertion hole 22 exits the lower end of the support part 11 formed at one side of the manhole body 10. The insertion hole 22 provided at one side of the rotating part 20 contacts the second movement preventing device 13 while preventing the movement to the lower end of the support part 11 and the manhole cover to be described below. 30) serves to recognize the state that can be opened.

That is, the rotation radius of the rotating part 20 is set by the first movement preventing device 12 and the second movement preventing device 13 so that the insertion hole 22 is positioned at the correct position.

The manhole cover 30 is provided on the manhole body 10. The manhole cover 30, as shown in Figure 4, is formed in a disk shape, the center is provided with a circular second insertion groove 31 is inserted into the operating portion 40 to be described below. That is, the manhole cover 30 is seated on the multi-stage surface of the manhole body 10 so that the upper end is located on the same line as the ground.

In addition, one side of the manhole cover 30 is provided with a third insertion groove 32 into which a tool necessary for opening the manhole cover 30 is inserted. The third insertion groove 32 is formed with an inclined surface inward to facilitate insertion of the tool.

In addition, a fourth insertion groove 33 is provided at an inner lower end of the third insertion groove 32. The second movement preventing device 13 is inserted into the fourth insertion groove 33. This serves to designate the position of the manhole cover 30 and to prevent the manhole cover 30 from rotating in one direction according to the rotation of the operation unit 40 to be described below.

The manhole which is this invention is provided with the operation part 40. FIG. The operation part 40, as shown in Figure 5, is formed in a flat or hemispherical shape at the top is provided with a groove into which the equipment is inserted, the upper portion is formed in a cylindrical shape in the second insertion groove 31 The lower portion is formed in a polygonal column shape and is inserted into the first insertion groove 21. That is, in a state where the polygonal pillar shape of the operating part 40 is inserted into the first insertion groove 21, a tool is inserted into the groove of the upper end of the operating part 40 to move the operating part 40 in one direction. When rotated to, the rotating part 20 serves to rotate in one direction.

In addition, a fastener 41 is provided in a polygonal column shape under the operation part 40. The fastener 41 prevents the operation part 40 from being separated from the rotating part 20. In addition, the fastener 41 may be fastened by a tapered shape or a bolt and a screw.

In addition, the fastener 41 is coupled to the manhole cover 30, the rotating unit 20 and the operating unit 40 is driven together.

In addition, the polygonal pillar formed on the lower portion of the operating portion 40, may be formed in a shape corresponding to the first insertion groove (21). It may be formed by changing the shape as shown in Fig. 5 (a) or 5 (b).

In addition, the operation part 40 may be provided with a spring 42. As illustrated in FIG. 6, the spring 42 is positioned between the fastener 41 and the rotating part 20 to serve to closely contact the operating part 40 downward. This prevents an accident caused by the operating part 40 protruding upward by the vehicle or person passing through the upper part of the manhole cover 30 by bringing the operating part 40 into close contact with the manhole cover 30. The operation part 40 serves to prevent the flow of the manhole cover 30 by the load.

In the manhole of the present invention, a third movement preventing device 50 is provided. As illustrated in FIG. 7 (a), the third movement preventing device 50 is formed in a 'c' shape, and the third movement preventing device 50 is provided at an upper end of the manhole cover 30. The manhole cover 30 is inserted into the manhole cover 30 through the fifth insertion groove 34 provided in the groove to accommodate the movement of the rotation unit 20. That is, the third movement preventing device 50 is located between the support part 11 and the second movement preventing device 13 and when the insertion hole 22 is located at the lower end of the support part 11, Insertion port 22 serves to prevent the departure from the lower end of the support (11). This serves to prevent the manhole cover from being opened because the rotation unit cannot rotate unless the third movement preventing device 50 is moved upward.

In addition, the separation prevention device 51 is inserted into the end of the third movement prevention device 50 is provided with a separation prevention device 51 for equipping the departure of the third movement prevention device to the outside of the manhole cover 30. The separation prevention 51 prevents the third movement preventing device 50 from being separated from the manhole cover 30 by a nut 52 fastened to the end of the third movement preventing device 50. It will play a role.

In addition, a side of the third movement preventing device 50, as shown in Figure 7 (b), may be provided with a rotating part (53). The rotating part 53 rotates the third movement preventing means 50 to one side, and serves to prevent the third movement preventing means 50 from moving downward by its own weight. When the manhole cover 30 is opened by one worker, the manhole cover 30 may be opened by moving the third movement preventing device 50 to the upper end by using the rotating part 53 to fix the manhole cover 30. Can be.

In addition, when the manhole cover 30 is opened, the third movement preventing device 50 protrudes to the outside of the manhole cover 30 so that an operator grips the third movement preventing device 50 so as to open the manhole. It serves as a handle to open the cover 30.

In addition, a seating groove 14 may be provided on a surface on which the manhole cover 30 of the manhole body 10 is seated. The seating groove 14 is formed by recessing a predetermined depth in the manhole cover seating surface, so that one side of the manhole cover 30 is inserted into the seating recess 14 when the manhole cover 30 is opened. It serves to open the manhole cover safely. This, when the manhole cover 30 is left in a closed state for a long time, serves to prevent the manhole cover 30 is attached to the manhole body 10 due to rust or foreign matter.

Hereinafter, the manhole according to the present invention having the configuration as described above will be described in detail.

First, the operation part 40 is inserted into the second insertion groove 31 of the manhole cover 30, and the first insertion groove 21 of the rotating part 20 is inserted below the operation part 40. The manhole cover 30, the rotating unit 20 and the operating unit 40 is coupled to the fastener 41 in one state.

In addition, the third movement preventing device 50 is inserted into the fifth insertion groove 34 while the manhole cover 30, the rotation unit 20, and the operation unit 40 are coupled to each other, and the manhole body 10 ) Insert the separation prevention port 51 to the end of the third movement preventing device 50 from the inner side and fasten with the nut 52.

The support part 11 and the second movement preventing device of the manhole body 10 in a state in which the manhole cover 30, the rotating part 20, the operation part 40, and the third movement preventing device 50 are coupled to each other. Inserted so that the insertion opening 22 is located between the (13). In this case, the third movement preventing device 50 is moved upward to allow the rotation part 20 to be rotatable and move the fourth insertion groove 33 provided at one lower end of the manhole cover 30 to the second movement. The manhole cover 30 is seated on the manhole body 10 by being positioned at the upper end of the protective device 13.

Next, by inserting the equipment into the groove provided on the top of the operating unit 40 to move the operating unit 40 to the right (in Figure 4) so that the insertion opening 22 is located at the bottom of the support (11).

Next, when the insertion hole 22 is positioned at the lower end of the support part 11, the third movement preventing device 50 is moved downward to prevent the insertion hole 22 from being separated from the lower end of the support part 11. .

In addition, the opening order of the manhole cover 30 is to reverse the above-described contents to open the manhole cover 30.

As described above, it is to be understood that the technical structure of the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, All changes or modifications that come within the scope of the equivalent concept are to be construed as being included within the scope of the present invention.

10 manhole body 11: support portion
12: first movement preventing device 13: second movement preventing device
14: settling groove
20: rotating portion 21: the first insertion groove
22: insertion hole 23: projection
30: manhole cover 31: second insertion groove
32: third insertion groove 33: fourth insertion groove
34: fifth insertion groove
40: operating part 41: fastener
42: spring
50: third movement preventing device 51: escape prevention device
52: nut 53: rotating part

Claims

Cylindrical manhole body through which the center is penetrated;
At least one support part protruding along an inner surface of the manhole body;
A rotation part having a polygonal first insertion groove provided at a center thereof and having an insertion hole formed to protrude from both ends thereof;
Manhole cover is formed in a disk shape, the center is provided with a circular second insertion groove; And
Includes; the upper is provided with a groove into which the equipment is inserted, the upper portion is a cylindrical shape and the lower portion is formed in a polygonal column shape corresponding to the first insertion groove;
Wherein,
The lower polygonal column is inserted into the first insertion groove, the upper cylinder is inserted into the second insertion groove, the insertion hole is moved to the lower end of the support portion by the rotation of the operating portion does not open the manhole cover. Manhole characterized.

The method of claim 1,
On one side of the support and the inside of the manhole body,
The manhole, characterized in that the first movement preventing device and the second movement preventing device for restraining the rotation of the rotating unit is provided.

3. The method according to claim 1 or 2,
On the upper side of the manhole cover, a third insertion groove having an inclined surface inwardly is provided to insert a tool necessary for opening the manhole cover,
The manhole of the lower end of the manhole cover, characterized in that the second movement prevention port is inserted is provided with a fourth insertion groove for restraining the movement of the manhole cover.

The method of claim 1,
A third movement preventing device which is formed in a 'c' shape and is inserted downward from an upper end of the manhole cover to restrict movement of the rotating part;
A fifth insertion groove provided at an upper end of the manhole cover and into which the third movement preventing device is inserted;
A separation prevention device inserted into an end of the third movement preventing device to prevent the third movement preventing device from being separated out of the manhole cover;
A nut fastened to an end of the third movement preventing device to prevent the release preventing device from being separated from the third movement preventing device;
A manhole comprising a.

The method of claim 1,
The insertion port
The manhole is formed in a tapered shape that increases in thickness from one side to the other side, the top is formed with a projection to reduce the frictional force with the support.

The method of claim 1,
On one side of the manhole body on which the manhole cover is seated,
And a seating groove is further provided to reduce the contact surface between the manhole cover and the manhole body.