KR20190017367A - Manhole with locking and lifting functions of cover - Google Patents

Abstract

The present invention relates to a manhole having functions of locking and lifting a cover, of which a configuration capable of carrying out the locking and lifting functions is simple, and the locking and lifting functions can be satisfied not only by a new manhole, but also by an old manhole by replacing the old manhole. A bottom surface of the cover is provided with a plurality of locking bars, and the locking bars are fastened to an operation bolt which is installed to a center of the bottom surface, so that the locking bars are moved outwardly by a lifting member which moves up, to lock the cover. A lower portion of the lifting member is provided with a separate support, and if the lifting member is moved up by rotating the operation bolt, the locking bars are moved outwardly to lock the cover, while the lifting member is moved down, the cover is unlocked. At the same time, a lower end of the lifting member comes into contact with the support, and if the operation bolt is continuously rotated, the cover is lifted.

Description

{MANHOLE WITH LOCKING AND LIFTING FUNCTIONS OF COVER}

The present invention relates to a manhole having a locking function and a lifting function of a lid, and more particularly, it is possible to satisfy not only a newly installed manhole, but also a locking function and a lifting function by simply replacing the lid at the manhole installed in the road.

 In general, a manhole is installed in an opening of an underground structure installed for the burial of a power line or a communication line, or an opening to a drain pipe through which sewage or storm drains, and is installed at an interval Respectively.

The manhole cover is generally designed to have a diameter slightly smaller than the inner diameter of the manhole holder in the manufacturing process so that the manhole cover can be easily installed in the field. In such a case, There is a risk of safety accidents due to noise or cover release.

As a means for solving such a problem, a manhole provided with a locking means for preventing separation from the lid is provided, but in the case of the manhole, the lid can be prevented from coming off.

However, if it is used for a long period of time in a locked state, another problem arises that foreign matter enters the gap between the pedestal and the lid to make it difficult to open the lid.

Therefore, a manhole is provided so that the cover can be locked and opened.

That is, Patent Document No. 10-2013-0067976 entitled " Manhole Cover Style Locking Device by Rotation of Shaft "(Patent Document 1) and Patent No. 10-1580959 entitled" Locking Manhole Assembly with Lid Lifting Device " 2), and Japanese Patent No. 10-1580960 entitled " Locked Manhole Assembly with Lid Lifting Device "(Patent Document 3).

[0005] In consideration of the technical contents of Patent Document 1, a manhole cover having a slide hole vertically formed at the center thereof, a horizontal support portion positioned at a lower portion of the manhole cover and having a fixing hole vertically formed at the center thereof, A fixing bar inserted into the slide hole of the manhole cover and fixed to the fixing hole of the receiving portion by the lower fixing means, and a fixing rod which is provided between the manhole cover and the pedestal, A latch which is coupled to the edge of the lifting plate by a horizontal shaft and whose other end is pivoted and rests on the edge of the receiving portion by its own weight, The upper and lower seating tiers are formed in multiple stages so that the lid and the receiving section are seated, It is made up of a manhole holder.

[0008] Considering the technical contents of Patent Document 2, it is considered that a tubular manhole frame having a base plate formed on its inner side, a lid plate having a base rim placed on the base plate and having a through hole at its center, A lifting body coupled to the body of the locking operation opening at the bottom surface of the lid plate and vertically rotating by the forward and backward rotation of the locking operation opening so that one end of the lifting body is housed inside the lifting body, At least one locking lever supported on the bottom surface of the lid plate so that a fulcrum of the middle lid can be pivotally moved so as to perform seesaw motion at both ends in accordance with the lifting and lowering of the body, Wherein the locking lever holds the lid plate in a locked state or an unlocked state in a manhole frame by seesaw motion, And the other end is supported by the upper surface of the support in the unlocked state to lift the lid plate to the upper portion of the manhole frame.

In addition, when the technical contents of Patent Document 3 are examined, a tubular manhole with a base provided on its inner surface; A lid plate having a bottom edge on the base plate and a through hole formed in the center thereof; A support table formed on an inner surface of the manhole frame at a lower portion of the base; A lift lever for pushing up the lid plate in a state of being embedded in a gap formed in a bottom surface of the lid plate and lifting the lid plate to the upper portion of the manhole frame; A locking lever accommodated in or separated from the lock space formed between the bottom surface of the base and the upper surface of the support; A lock key operable to be inserted into the through hole of the lid plate to lock or unlock the lid plate to the manhole frame; And a key box capable of operating the lift lever and the locking lever using a rotating mechanism that rotates according to an operation of the lock key, wherein when the rotation mechanism is rotated in the unlocking direction, The locking lever is received in the lock space and the one end of the lift lever is engaged with the cover plate when the locking lever is rotated in the locking direction, So that the bottom edge of the lid plate is placed on the base of the base.

In the case of Patent Documents 1 to 3, the lock function and the buoyancy function are satisfied at the same time. However, in the case of Patent Document 1, there is no problem in the lock, but the lifting means of the lid is caused by the elastic force of the spring, It is impossible to expect the function of the support because the elasticity of the spring is lowered.

Patent Literature 2 and Patent Literature 3 have no problem in terms of the locking function and the lifting function. However, in Patent Literature 3, the apparatus for locking and lifting is complicated, and the weight is heavy, which makes it difficult to open and close the lid.

In particular, in the case of Patent Documents 1 to 3, since the lock function and the float function can not be added to the cover of the manhole already installed, the entire manhole made of the lid and the pedestal must be installed in order to add the locking and lifting function, There was a lot of time, money, and traffic congestion.

Patent Publication No. 10-2013-0067976 "Manhole cover locking device by shaft rotation" No. 10-1580959 entitled "Locked Manhole Assembly with Lid Lifting Device" No. 10-1580960 entitled "Locked Manhole Assembly with Lid Lifting Device"

The present invention relates to a manhole having a locking function and a lifting function of a lid, and it is an object of the present invention to provide a means for simply replacing a lid even in the case of a manhole already installed and in use, To meet the locking and lifting functions.

As a means for solving the above problems, the present invention provides a lock mechanism comprising a plurality of lock bars provided on a bottom surface of a lid, the lock bar being moved outwardly by an ascending / When the operation bolt is rotated to raise the ascending / descending member, the lock bar is moved outward to be locked. When the descending member is lowered, the lock is released. At the same time, The lower end portion is brought into contact with the support member, and when the operation bolt is continuously rotated in the above-described state, the cover can be lifted.

The present invention is characterized in that a plurality of locking bars are provided on the bottom surface of a lid, and the locking bar is moved outwardly by a lifting body that is screwed to an operating bolt installed at the center of the bottom of the lid to lock the lid, The lock bar is moved outward to lock the lock bar. When the lock bar is lowered, the lock is released and at the same time the lower end of the lock bar is brought into contact with the support, It is possible to simplify the construction of the locking and lifting function, and in particular, even in the case of a new manhole, as well as a manhole which is already installed and used, by means of simply replacing the cover Locking and lifting functions can be achieved.

1 is a cross-sectional view of the cover of the present invention;
Fig. 2: A state in which the lid is locked in the state of Fig. 1
Fig. 3: State in which the lid is lifted in the state of Fig. 1
Figure 4: Cross-sectional view of the cover of the invention
5 is a perspective view of the elevator and the lock bar used in the apparatus of the present invention.
Figure 6 is a perspective view of a floating support used in the apparatus of the present invention.
7: bottom view of the device of the present invention
8 is a perspective view of the elevating body used in the present invention apparatus;
9: perspective view of the lock bar used in the inventive device

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a manhole 100 having a locking function and a lifting function of a lid 200. The lifting body 230 is lifted and lowered by the rotation of an operating bolt 210 provided at the center of the lid 200, ) Can be lifted and locked.

1 to 3 are sectional views of a manhole 100 to be provided in the present invention. When the lid 200 is coupled to the pedestal 300, the rim 201 of the lid 200 is inserted into the pedestal 300, The manhole 100 having the above-described configuration is generally used. The manhole 100 has a structure in which the inner lid tab 311 is positioned below the lid tab 311 and the inner lid tab 312 protrudes below the lid tab 311.

The manhole 100 to be provided in the present invention is provided with a locking and lifting means on the bottom surface of the lid 200 and a pedestal 300 necessary for lifting the lid 200 is installed on the pedestal 300.

The locking and lifting means provided on the bottom surface of the cover 200 will be described.

A water retention chamber 202 is formed at the center of the lid 200 and a through hole 203 is formed at the center of the water retention chamber 202.

The screw bolt 211 is inserted into the through hole 203 of the lid 200 through the through hole 203 and protruded downward from the lid 200, (202). ≪ / RTI >

The elevation control pin 213 is coupled to the upper end of the threaded rod 211 of the operating bolt 210 passing through the through hole 203 of the lid 200 to be in contact with the bottom surface 203 of the lid 200.

The lifting body 230 is screwed to the threaded rod 211 and a release preventing pin 214 is coupled to the lower end of the threaded rod 211 located below the lifting body 230, Thereby preventing the elevator 230 from departing.

The lifting body 230 coupled to the threaded rod 211 of the operating bolt 210 has a concave groove 231 at the center of the upper surface and a screw hole 232 is drilled in the center of the concave groove 231, And the upper inclined surface 233 is formed at the rim and the guide piece 235 is formed at the upper inclined surface 233 with the guide hole 234 opened at equal intervals.

The support bar 240 is inserted into the guide hole 234 of the guide piece 235 formed at the rim of the ascending and descending member 235 and is then mounted on the bottom surface of the lid 200 using the screw portion 241 formed at the upper end of the support bar 240 So that it is screwed and fixed.

Therefore, even if the actuating bolt 210 is rotated, the ascending / descending member 230 only moves up and down along the threaded rod 211 and does not rotate.

The lower end portion 242 of the support rod 240 screwed to the bottom surface of the lid 200 is positioned lower than the lower end portion 215 of the operation bolt 210 so that the lid 200, The operation bolts 210 and the like are protected from contact with the floor.

In the embodiment of the present invention, the number of the support rods 240 installed upright on the bottom surface of the lid 200 is three and the number of the support rods 240 may be selected.

Three locking bars 260 are provided on the bottom surface of the lid 200 so as to be in contact with the inner side surface 313 of the main body 310 of the pedestal 300. The locking bars 260 are connected to the three pedestals 240 As shown in Fig.

The outer guide 270 and the inner guide 280 formed by the pair of guide surfaces 271 and 281 on the bottom surface of the lid 200 and having the guide spaces 272 and 282 formed therebetween are fastened to the fastening bolts 273 and 283 and the lock bar 260 is inserted into the guide spaces 272 and 282 and then the guide pins 274 and 284 are engaged between the guide pieces 271 and 281, So that the bar 260 is positioned in the guide spaces 272 and 282 of the inner and outer guide holes 270 and 280.

At this time, the guide pin 274 of the outer guide hole 270 is fitted in the elongated hole 260 formed in the lock bar 260 to prevent the lock bar 260 from being released, And the lock bar 260 is placed on the inner guide pin 284.

The guide pin 274 of the outer guide 270 is installed above the guide pin 284 of the inner guide 280 so that the lock bar 260 is attached to the inner and outer guide 270, When the cover 200 is opened and closed, the lock bar 260 is prevented from moving in the outward direction even when the cover 200 is slightly tilted to one side when the cover 200 is opened and closed.

The lock bar 260 located in the guide spaces 272 and 282 of the inner and outer guide holes 270 and 280 is configured as follows.

The downward inclined face 263 is brought into contact with the upward inclined face 233 of the ascending / descending body 230 and the curved face 264 is formed in the inner side edge 262 with the downward inclined face 263 and the curved face 264, So that it is possible to control the movement of the lock bar 260 in the outward direction by being placed on the guide pin 284 of the guide hole 280. [

It is preferable to form a synthetic rubber piece 266 at the outer end 265 of the lock bar 260 so as to have a good gripping force.

When the lifting body 230 is lifted by the rotation of the operating bolts 210 in the state where the lock bars 260 are installed on the inner and outer guide holes 270 and 280, the lock bars 260 are moved outward The synthetic rubber piece 266 formed at the outer end portion 265 of the lock bar 260 is brought into contact with the inner side surface 313 of the pedestal 300 to be locked and the ascending / 266 may be separated from the inner surface 313 of the pedestal 300 so that the lock can be released.

Therefore, the length of the lock bar 260 is selected according to the size of the manhole 100.

The floating support 290 for lifting the lid 200 is constructed as follows.

6, a support plate 291 having a through hole 292 at its center is formed and three support supports 293 are formed outside the support plate 291 and bent portions 294 ).

When the floating support 290 having the above-described configuration is inserted into the support 300, the bent portion 294 formed at the end of the support 293 is caught and fixed to the inner lid 302.

The lower end of the operating bolt 210 installed on the lid 200 is fitted in the through hole 292 of the pedestal support 290 and the lower end 236 of the elevating member 230 is positioned directly above the support plate 291, And the support rod 240 is positioned between the supports 293.

Reference numeral 330 is a cover.

In the manhole 120 of the present invention having the above-described structure, the lid is removed from the already installed manhole and then the pedestal 300 is mounted on the pedestal 300. The cover 200 of the present invention, ) Or a newly installed manhole (100).

Locking and lifting of the lid 200 using the manhole 200 of the present invention is as follows.

The locking process will be described.

1, a cover 330 coupled to the central receiving chamber 202 of the lid 200 is detached, a separate tool is inserted into the bolt head 212, and the operating bolt 210 is rotated clockwise The ascending / descending member 230 screwed to the threaded rod 211 of the operating bolt 210 is raised without rotating.

The reason why the ascending / descending member 230 is vertically moved up and down by the rotation of the operating bolt 210 is that the supporting stick 240 is attached to the guide hole 234 of the guide piece 235 formed on the outer peripheral surface of the ascending / And the support rod 240 is fixed to the bottom surface of the lid 200 so that the rotation of the lifting body 230 is vertically moved up and down along the support rod 240 while being controlled.

When the ascending / descending member 230 is raised by the rotation of the operating bolt 210, the upward inclined surface 233 is pressed against the downward inclined surface 263 of the lock bar 260, (280) of the guide member (280).

When the lock bar 260 moves outward due to the elevation of the ascending / descending member 230, the synthetic rubber piece 266 formed at the outer end portion 265 is brought into contact with the inner side surface 313 of the pedestal 300 to be locked So that it is possible to prevent the lid 200 from coming off, and to prevent vibration noise.

The unlocking and floating of the cover 200 is as follows.

When the operating bolt 210 formed at the center of the lid 200 is rotated in the counterclockwise rotation direction, the lifting body 230 screwed to the screw rod 211 is lowered as shown in FIG. 2, And the downward inclined surface 263 of the lock bar 260 are disengaged and the lock is released.

When the operation bolt 210 is continuously rotated in the state where the lock is released, only the ascending / descending body 230 is lowered along the swinging rod 211 and the lower end 236 of the ascending / And comes into contact with the support plate 291.

When the operating bolt 210 is continuously rotated in the above-described state, the operating bolt 210 can not be moved up and down by the elevation control pin 213 fitted to the screw rod 211, Only idling occurs and only the ascending / descending member 230 is lowered.

The lift bolt 210 is lowered along the screw bar 211 by the rotation of the bolt 210 and the lift bolt 213 is hooked on the bottom surface 203 of the cover 200 The cover 200 floats as shown in FIG.

The lifting degree of the lid 200 is adjusted according to the length of the threaded rod 211 and the length of the threaded rod 211 is adjusted such that the lid 200 floats, So that the worker's fingers can float between the lid 200 and the pedestal 300.

The escape prevention pin 214 fitted to the lower end of the operation bolt 210 is a safety device for preventing the escape structure 230 from escaping from the screw rod 211 when the lid 200 is lifted.

When the lid 200 is lifted from the pedestal 300, the lid 200 is lifted to separate the lid 200 from the floor. At this time, The lower end portion 242 of the lid 200 supports the lid 200 so that the lifting devices constructed on the bottom surface of the lid 200 are prevented from contacting the floor.

Even when the lid 200 is completely separated from the pedestal 300, the pedestal 300 is provided with the pedestal pedestal 290, so that it is possible to prevent a safety accident such as a manhole dislocation due to carelessness by a worker or a pedestrian.

When the lid 200 is to be assembled again to the pedestal 300 after completion of the work, the following operation is performed.

The lower end portion 236 of the elevating member 230 screwed to the lower end of the operating bolt 210 is inserted into the supporting plate 300 of the floating support 290, A gap is formed between the pedestal 300 and the lid 200 so as to allow the operator's finger to be inserted thereinto.

At this time, the three support rods 240 protruding from the lower end of the lid 200 are positioned between the support rails 293 of the pedestal support 290.

The locking bar 260 provided on the bottom surface of the cover 200 is inclined inward and the center of gravity is eccentric inwardly. At the same time, the curved surface 264 formed at the lower end of the inner end of the lock bar 260, The synthetic rubber piece formed on the outer end portion 265 of the lock bar 260 is prevented from being caught by the pedestal 30 when the lock bar 260 is slid on the guide pin 284 of the lock bar 280, So that it does not interfere with the engagement of the lid 200 with the lid 200. [

If the lid 200 is placed on the pedestal 300 and the actuating bolt 210 formed at the center of the lid 200 is rotated in the clockwise direction, the lifting body 230 is lifted along the screw rod 211, When the upward inclined surface 233 of the lifting body 230 comes close to the downward inclined surface 263 of the lock bar 260, the rim 200 of the lid 200 is lifted downward The lid 311 is placed on the lid 311 to complete the engagement.

When the lid 200 is to be locked in the above-described state, the locking bolt 260 is moved outward to be locked by rotating the operating bolt 210 to lift the lifting body 230 as described above.

As described above, according to the present invention, the locking and lifting of the lid 200 can be performed through the locking and lifting device provided on the bottom surface of the lid 200, so that the lid can be opened easily .

(100) - manhole (200) - cover
(210) - actuating bolts (211) -
(212) - Bolt head (213) - Lift control pin
(214) - a release preventing pin (215) - a lower end
(230) - the lifting body (231) - the concave groove
(232) - screw hole (233) - upward sloping surface
(234) - guide ball (235) - guide
(236) - a lower end (240) - a support rod
(241) - a threaded portion (242) - a lower end
(260) - lock bar (261) - slot
(262) - Inner end (263) - Downward slope
(265) -outside end (270) -outside guide
(280) - Inner guide (290) - Floating support
(291) - a support plate (300) - a support
(312) - Inner lid jaw

Claims (4)

The operating bolt 210 is rotatably installed at the center of the lid 200 and the operating bolt 210 of the operating bolt 210 is fixed to the screw rod 211 The lifting body 230 having the upward inclined plane 233 is screwed and then the rotation of the lifting body 230 is controlled by the lifting rod 240 installed on the bottom surface of the lid 200. The screw rod 211, And an inner guide hole 280 and an inner guide hole 280 having guide spaces 272 and 282 formed between the guide pieces 271 and 281 are formed on the bottom surface of the lid 200, A locking bar 260 having a downward slope 263 formed therein is inserted into the guide space 272 or 282 at the inner end 262 and then a guide pin 272 is inserted between the guide pieces 271 and 182, 271) 281 so that the lock bar 260 can be moved between the outer guide hole 270 and the outer guide hole 280 while the downward inclined surface 263 of the lock bar 260 and the ascending / ) The locking bar 260 is moved in the inward and outward directions by the lifting and lowering operation of the ascending / descending body 230 so that the locking and unlocking are released and the inner surface of the main body 310 of the cradle 300 And a lifting support 290 constituted by a support plate 291 and a support 293 through which a through hole 292 is formed in the inner lid holding jaw 311 formed in the lifting body 230 The lower end portion 236 of the cover 200 is brought into contact with the upper surface of the support plate 291 of the foot support 290 and then the operation bolt 210 is rotated to allow the lid 200 to float. Manhole with floating function. The screw bolt according to claim 1, wherein a lower end portion (215) of the threaded rod (211) of the operating bolt (210) passes through the through hole (292) of the floating support (29) to be positioned below the support plate (291) And a lift preventing pin (215) is coupled to the lower end portion (215) to prevent the elevating body (230) from coming off. The elevator according to claim 1, wherein a guide piece (235) having a guide hole (234) is formed at a rim of the elevator (230), a support bar (240) is fitted in the guide hole (234) 240) is positioned below the lower end (215) of the threaded rod (211) of the operating bolt (210). The locking bar according to claim 1, wherein a long hole (261) is formed in the lock bar (260), and the guide pin (284) of the outer guide hole (280) A manhole with cover lock and float features featuring a flap.

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