KR100964836B1 - Locking device for man hole cover - Google Patents

Abstract

The present invention relates to a manhole cover locking device. The present invention is provided with a horizontal rotary plate formed with a pinion gear rotatably on the outer periphery of the lower region of the manhole cover constituting the manhole, the horizontal movement formed with a rack gear to be horizontally engaged with the pinion gear of the rotating plate It is equipped with a bar and configured to lock the manhole cover with their coupling force, so that the manhole cover can be easily combined and detached from the manhole frame, so that the worker can work conveniently, and when an external force (car, etc.) is applied, Manhole cover is coupled to the manhole frame provides the effect of preventing the flow and noise generated between them.

Manhole, lid, lock, locking, retaining

Description

Manhole Cover Locking Device {LOCKING DEVICE FOR MAN HOLE COVER}

The present invention relates to a manhole, and in particular, a rotatable plate having a gear formed on the outer periphery of the lower region of the manhole cover constituting the manhole is rotatable, and is meshed with the gear of the rotatable plate so as to be movable horizontally to the outside of the manhole frame. It is configured to lock the manhole cover so that it can wander.

In general, a manhole is a hole that allows a worker to enter and maintain a water supply pipe, a sewer pipe, an electric power outlet, or a joint hole in a basement installed on a road surface. A slab is formed, a manhole frame is installed on the upper part of the manhole slab, and a manhole cover is installed on the top of the manhole frame.

This manhole is installed inside the manhole frame on the slab at the installation position of the manhole, and then the manhole cover is seated on the inner circumference of the manhole frame. Watertightness is maintained by being pressed the rubber packing.

The manhole frame is matched with the screw hole of the manhole cover to the screw hole, and then through the fastening bolt through this to securely assemble the manhole cover on the manhole frame, assemble, and release the fastening force of the fastening bolt to separate the manhole cover will be.

However, such a conventional manhole has the inconvenience of having to match the screw hole of the manhole cover to the screw hole of the manhole frame by moving a relatively heavy manhole cover; It is not easy to assemble and dismantle by fastening or separating them by fastening bolts one by one, and when the vehicle passes over the manhole cover as the metal manhole frame and manhole cover are combined, the manhole cover flows and pushes. There was a problem that noise occurs.

The present invention has been made to solve such a conventional problem, the present invention is rotatably provided with a rotary plate formed of gears on the outer periphery of the lower region of the manhole cover constituting the manhole, and moves horizontally to the gear of the rotary plate It is configured to lock the manhole cover by locking the manhole cover so as to be able to be engaged to the outside of the manhole frame, it is configured to prevent the flow and noise generated between the manhole cover and the manhole frame from the external force.

The problem means of the present invention, in the manhole consisting of a manhole frame and a manhole cover, provided with a locking device for maintaining and releasing the locking of the manhole cover between the manhole frame and the manhole cover, the locking device is a manhole A fastening screw part rotatably fastened to the screw hole of the lid to protrude integrally, and a circular rotary plate having a circular track gear extending in a track type on a lower surface thereof; A horizontal moving bar having circular rack gears respectively formed to correspond to the circular track gears of the circular rotating plate; And a moving hole formed in the manhole frame so that the horizontal moving bar can be inserted into and out of the inside of the manhole frame, and having a departure preventing member. And extending in the outer periphery of the manhole frame in communication with the moving hole, characterized in that it comprises a reinforcing rib formed with a fitting groove.

And, in the manhole made of a manhole frame and a manhole cover, provided with a locking device for maintaining and releasing the locking of the manhole cover between the manhole frame and the manhole cover, the locking device to the screw hole of the manhole cover A circular rotating plate having a fastening screw portion rotatably formed to protrude integrally and having a pinion gear formed at an outer circumference thereof; A horizontal moving bar having a rack gear meshed with the pinion gear of the circular rotating plate; A moving hole formed in the manhole frame so that the horizontal moving bar is inserted into and out of the outside and provided with a departure preventing member; And a reinforcing rib formed on an outer circumference of the manhole frame in communication with the moving hole and having a fitting groove formed therein.

The present invention is provided in the lower region of the manhole cover constituting the manhole rotatably provided with a circular rotary plate formed with a pinion gear on the outer periphery, and has a horizontal movable bar formed with a rack gear that is horizontally movable to the pinion gear of the rotary plate. It is configured to lock the manhole cover by their coupling force, so that the manhole cover can be easily combined and detached from the manhole frame, making it convenient for the operator, and when external force (such as a car) is applied, the manhole with uniform force Manhole cover is coupled to the frame to provide the effect of preventing the flow and noise generated between them.

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

1 is a perspective view of the main portion of the manhole cover locking device according to the present invention, Figure 2 is a plan view showing a manhole cover locking device according to the present invention, Figure 3 is a manhole cover locking device according to the present invention Figure 4 is a cross-sectional configuration view, Figure 4a, 4b is a cross-sectional view of the operating state of the manhole cover locking device according to the present invention.

First, as shown in Figures 1 to 3, the manhole 1 according to the present invention consists of a manhole frame 10 and a manhole cover 30.

The manhole frame 10 is formed with an annular seating end (12) extending from the inner circumference of the manhole cover 30 is seated.

The manhole cover 30 maintains an appropriate thickness, various patterns are formed on the upper portion, and the screw hole 32 is formed through the central region.

A locking device 40 is provided between the screw hole 32 and the manhole frame 10 of the manhole cover 30 to maintain and release the locking of the manhole cover 30.

The locking device 40 is integrally formed with a fastening screw 52 that is rotatably fastened to the screw hole 32 of the manhole cover 30, and the circular track gear 54 extends in a track type on the lower surface. A circular rotating plate 50 formed; Horizontal moving bars 60, 61, 62 each having circular rack gears 63 formed therein to correspond to the circular track gears 54 of the circular rotating plate 50; The horizontal movement bars 60, 61, 62 are formed of moving holes 64, 65, 66 formed in the manhole frame 10 so that the horizontal movement bars 60, 61, 62 may be inserted into and retracted inward and outward.

At this time, the circular rack gear 63 is meshed with the circular track gear 54 of the circular rotating plate 50 so that the horizontal moving bars 60, 61, 62 are rotated when the circular rotating plate 50 is rotated. At the same time to move outward along the lock of the manhole cover 30 is released, when moving inward, the locking is maintained.

On the other hand, the outer periphery of the manhole frame 10 is integrally formed with reinforcing ribs 70 in which fitting grooves 67, 68, and 69 are formed to communicate with the moving holes 64, 65, 66, respectively.

In addition, the horizontal movement bars (60), (61), (62) are moved holes (64), (65), and (66) and (69), (69), (69), and (69), respectively. An anti-separation member 80 is provided to block the complete departure from the (66).

The detachment preventing member (80) includes a vertical screw hole (82) formed to communicate perpendicularly to the moving holes (64) (65) (66); A fastener 84 fastened to the vertical screw hole 82; A stopper ball 86 inserted into the end of the fastener 84 so as to be projected; A spring 88 provided in the fastener 84 to support the stopping ball 86; After the fastener 84 is fastened to the rear end group to support the spring 88 and the group fastener (90); The locking grooves 89 are formed on the horizontal moving bars 60, 61, and 62 so that the stopper balls 86 are caught to block the inner movement of the horizontal moving bars 60, 61, and 62. .

On the other hand, Figures 5 and 6 is a perspective view of the main portion showing another embodiment of the manhole cover locking device according to the present invention, Figure 7 is a cross-sectional configuration of Figures 5 and 6, Figure 8a, 8b according to the present invention It is sectional drawing of the operation state which shows another embodiment of a manhole cover locking apparatus.

This shows another embodiment of Figures 1 to 4, the basic structure of the manhole is configured in the same way, differently configured locking device for locking the manhole cover.

Specifically, as shown in FIGS. 5 to 7, the manhole 1 according to the present invention includes a manhole frame 10 and a manhole cover 30.

The manhole frame 10 is formed with an annular seating end (12) extending from the inner circumference of the manhole cover 30 is seated.

The manhole cover 30 maintains an appropriate thickness, and various patterns are formed on the upper portion, and the screw hole 100 is formed through the central region.

A locking device 200 is provided between the screw hole 100 and the manhole frame 10 of the manhole cover 30 to maintain and release the locking of the manhole cover 30.

The locking device 200 is formed by integrally protruding the fastening screw 210 is rotatably fastened to the screw hole 100 of the manhole cover 30, the outer peripheral edge of the circular rotary plate 230 is formed with a pinion gear 220 )and; Horizontal movement bars 250 and 260 each having a rack gear 240 meshed with the pinion gear 220 of the circular rotating plate 230; The horizontal movement bars 250 and 260 are formed of moving holes 270 and 280 formed in the manhole frame 10 so that the horizontal movement bars 250 and 260 can be inserted in and out.

At this time, the horizontal movement bar (250, 260) formed with the rack gear 240 is coupled to both sides of the pinion gear 220 of the outer circumference of the circular rotary plate 230, and when the circular rotary plate 230 rotates at the same time, respectively When the locking of the manhole cover 30 is released and moved inward, the locking is maintained.

On the other hand, the outer periphery of the manhole frame 10 is integrally formed with a reinforcing rib 310 in which the fitting holes 290 and 300 are formed so as to communicate with the moving holes 270 and 280.

Then, the horizontal movement bar 250, 260 is separated from the moving hole 270, 280 to move completely away from the movement hole 270, 280 when moving horizontally along the fitting grooves 290, 300 Prevention member 400 is provided.

The detachment preventing member 400 is a vertical screw hole 410 formed to communicate vertically to the moving hole (270, 280); A fastener 420 fastened to the vertical screw hole 410; A stopper ball 430 inserted into the end of the fastener 420 so as to be projected; A spring 440 provided inside the fastener 420 to support the stopping ball 430; After the fastener 420 is fastened to the rear end group member 450 to support the spring 440; The stopper ball 430 is formed on the horizontal moving bars 270 and 280 so that the stopper ball 430 is engaged, and the locking groove 460 blocks the inner movement of the horizontal moving bars 250 and 260.

Referring to the operation state of the manhole according to the present invention configured as described above, the manhole frame 10 is installed in the installation position of the manhole as shown in Figs. 1 to 3, and then the annular seating end of the inner circumference of the manhole frame 10 ( 12) to seat the manhole cover 30. Then, the lower edge of the manhole cover 30 inside the annular seating end 12 of the manhole frame 10 is seated on the annular seating end 12 with its own weight.

Accordingly, the manhole cover 10 of the manhole frame 10 has a circular track gear 54 made of a track type of the lower surface of the circular rotating plate 50 fastened to the manhole cover 30 and the screw hole 32 so as to be rotatable. Circular movement of the horizontal moving bars 60, 61, 62 inserted into and out of the movable holes 64, 65, 66 and the fitting grooves 67, 68, 69 of the reinforcing ribs 70, respectively. The front ends of the rack gears 63 are maintained in engagement with each other.

In this state, as shown in FIG. 4A, the fastening screw portion 52 of the circular rotating plate 50 is rotated counterclockwise with a separate tool 3 from the outside.

Then, the fastening screw unit 52 is rotated counterclockwise around the screw hole 32, so that the circular rotating plate 50 is rotated in the counterclockwise direction, the circular track gear (under the circular rotating plate 50) ( 54, horizontally movable bars 60, 61, and 62 engaged with circular rack gears 63 corresponding to 54 are movable holes 64, 65, 66 and reinforcing ribs 70 of the manhole frame 10, respectively. Along the circular track gear 54 to move inward while leaving the fitting holes 67, 68, 69 of the).

In this way, the horizontal movement bars 60, 61, 62 continue to move inward, and then the outside of the moving holes 64, 65, 66 of the manhole frame 10 by the release preventing member 80. Movement is blocked.

That is, when the horizontal movement bars 60, 61, 62 are moved inward, the stopper ball 86 at the tip of the fastener 84 constituting the release preventing member 80 is elastically pushed inward. On the other hand, when the stopping ball 86 coincides with the locking groove 89 of the horizontal moving bars 60, 61 and 62, the locking groove 89 is driven outward by the restoring force of the spring 88. (See Fig. 3).

At this time, when the user stops the rotational force of the tool 3, the manhole cover 30 is locked, and even if an external force (such as a vehicle) is applied to the vehicle, flow and noise are prevented.

On the other hand, in order to release the locking state of the manhole cover 30 as described above is to rotate the circular rotating plate 50 in the opposite direction as described above.

That is, as shown in FIG. 4B, the tool 3 is inserted into the fastening screw portion 52 of the circular rotating plate 50 and then rotated clockwise.

Then, the fastening screw 52 is rotated clockwise around the screw hole 32, so that the circular rotating plate 50 is rotated in the clockwise direction, the circular track gear 54 of the lower circular rotating plate 50 The horizontal movement bars 60, 61, and 62 engaged with the circular rack gears 63, respectively, move outward along the circular track gears 54, and the moving holes 64 of the manhole frame 10 ( 65, 66 and linearly move outward along the fitting grooves 67, 68, 69 of the reinforcing rib 70.

At this time, the locking groove 89 of the horizontal moving bars 60, 61, 62 is released from the stopping ball 86 by the rotational force of the circular rotating plate 50, the locking is released, the stopping ball 86 The elastically maintained state is maintained by the horizontal moving bars 60, 61, 62.

When the horizontal bar 60, 61, 62 is moved to the outside as described above, the rear end is caught by the fitting grooves 67, 68, 69 of the reinforcing rib 70 and no longer moved to the outside. , Locking is released, the horizontal movement bar 60, 61, 62, the tip of the protruding from the moving holes 64, 65, 66 of the manhole frame 10, the circular rack gear 63 is a circular rotating plate The engaged state of the circular track gear 54 of 50 is maintained.

After removing the manhole cover 30 from the manhole frame 10 in this state, the manhole can be self-maintained and cleaned inside.

On the other hand, Figures 5 to 7 show another embodiment of the locking device of the manhole according to the present invention, the operation state thereof will be described as follows.

First, the manhole frame 10 is installed at the installation position of the manhole, and then the manhole cover 30 is seated on the annular seating end 12 of the inner circumference of the manhole frame 10.

Then, the lower edge of the manhole cover 30 is seated by its own weight inside the annular seating end 12 of the manhole frame 10. Accordingly, the movement hole 270 of the manhole frame 10 to the pinion gear 220 of the outer circumference of the circular rotating plate 230 fastened to the manhole cover 30 and the screw hole 100 by the fastening screw unit 210. 280 and the front end of the rack gear 240 of the horizontal moving bars 250 and 260 respectively inserted to be protruding from the fitting grooves 290 and 300 of the reinforcing rib 310 are maintained.

In this state, as shown in FIG. 8A, the fastening screw unit 210 of the circular rotating plate 230 is rotated clockwise as a separate tool 3 from the outside.

Then, the fastening screw 210 is rotated in the counterclockwise direction about the screw hole 100, accordingly the circular rotating plate 230 is rotated in the counterclockwise direction, the pinion gear of the outer circumference of the circular rotating plate 230 ( Horizontal moving bars 250 and 260 respectively engaged with the rack gear 240 to the 220 are fitted holes 290 and 300 of the moving holes 270 and 280 of the manhole frame 10 and the reinforcing rib 310, respectively. At the same time while moving away from the pinion gear 220 to move inward.

As described above, the horizontal bars 250 and 260 continuously move inward, and further separation from the moving holes 270 and 280 of the manhole frame 10 is blocked by the separation preventing member 400.

That is, when the horizontal bar (250), 260 moves to the outside, the stopper ball 430 at the tip of the fastener 420 constituting the separation preventing member 400 is moved inward elastically, horizontal When the stopping ball 430 coincides with the locking groove 460 of the moving bars 250 and 260, the stopper ball 430 is brought into close contact with the locking groove 460 as it is protruded to the outside by the restoring force of the spring 440.

At this time, when the user stops the rotational force of the tool 3, the manhole cover 30 is locked, and even if an external force (such as a vehicle) is applied to the vehicle, flow and noise are prevented.

On the other hand, to release the locking state of the manhole cover 30 as described above is to rotate the circular rotating plate 230 in the counterclockwise direction as described above.

That is, as shown in FIG. 8B, the tool 3 is inserted into the fastening screw portion 210 of the circular rotating plate 230 and then rotated counterclockwise.

Then, the fastening screw unit 210 is rotated in the clockwise direction about the screw hole 100, accordingly the circular rotating plate 230 is rotated in the clockwise direction the pinion gear 220 of the outer circumference of the circular rotating plate 230 The horizontal movement bars 250 and 260 respectively engaged by the rack gears 240 move the pinion gear 220 to the outside, and the moving holes 270 and 280 and the reinforcing ribs of the manhole frame 10 are moved. It linearly moves outward along the fitting grooves 290 and 300 of 310.

At this time, the locking groove 460 of the horizontal moving bars 250 and 260 is released from the stopping ball 430 by the rotational force of the circular rotating plate 230, the locking is released, the stopping ball 430 is moved horizontally The elastically tight state is maintained by the bars 250 and 260.

When the horizontal bar (250, 260) is moved to the outside in this way, the rear end is caught by the fitting grooves (300) (310) of the reinforcing rib (310) is no longer moved to the outside, the locking state is released. At this time, the ends of the horizontal bar (250, 260) protrudes from the moving hole (270, 280) of the manhole frame 10, the rack gear 240 is engaged with the pinion 220 of the circular rotating plate (230) Is maintained.

After removing the manhole cover 30 from the manhole frame 10 in this state, the manhole can be self-maintained and cleaned inside.

Figure 1 is a perspective view of the main portion of the manhole cover locking device according to the present invention.

Figure 2 is a plan view showing a manhole cover locking device according to the present invention.

Figure 3 is a cross-sectional view showing a manhole cover locking device according to the present invention.

Figure 4a, 4b is an operating state cross-sectional view showing a manhole cover locking device according to the present invention.

5 and 6 is a perspective view of the main portion showing another embodiment of the manhole cover locking device according to the present invention.

7 is a cross-sectional view of FIGS. 5 and 6.

Figure 8a, 8b is a cross-sectional view showing an operation of another embodiment of the manhole cover locking device according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: manhole frame 30: manhole cover

32,100: screw hole 40,200: locking device

50: circular rotating plate 52,210: tightening screw

54: circular track gear 60, 61, 62: horizontal bar

63: circular gear 64,65,66: moving ball

67,68,69: fitting groove 70,310: rib

80,400: Release prevention member 82,410: Vertical screw hole

84,420 Fastener 86,430 Stopping Ball

88,440: Spring 89,460: Locking Groove

90,450: Post Collective Block 220: Pinion Gear

230: circular rotating plate 240: rack gear

250,260: Horizontal moving bar 270,280: Moving ball

290,300: fitting groove

Claims (4)

In the manhole consisting of a manhole frame and a manhole cover, Between the manhole frame 10 and the manhole cover 30 is provided with a locking device 40 for maintaining and releasing the locking of the manhole cover 30, The locking device 40 is formed of a protruding screw portion 52 which is rotatably fastened to the screw hole 32 of the manhole cover 30 and is integrally formed, and the circular rotating plate 54 is formed on the lower surface of the circular track gear 54. 50; Horizontal movement bars (60) (61) and (62) having linear motion gears (63) respectively formed to correspond to the circular track gears (54) of the circular rotating plate (50) to perform linear motion; Is formed in the manhole frame 10 is inserted into the horizontal movement bar (60, 61, 62) so that the inside and outside can go out, the movement hole (64) (65) (66) is provided with a departure prevention member (80) ); And Reinforcing ribs 70 extending from the outer circumference of the manhole frame 10 so as to communicate with the moving holes 64, 65, 66, and having fitting grooves 67, 68, and 69 formed therein; Manhole cover locking device, characterized in that configured to include. According to claim 1, wherein the separation preventing member 80 A vertical screw hole 82 formed to communicate vertically with the moving holes 64, 65 and 66; Fasteners 84 are fastened to the vertical screw hole (82); A stopping ball 86 inserted into the fastener 84 so as to be protruding; A spring 88 provided in the fastener 84 to support the stopping ball 86; After the fastener (84) is fastened to the rear end group fasteners 90 to support the spring (90); Locking grooves (89) formed in the horizontal moving bars (60) (61) (62), the stopping ball (430) is caught to block the inner movement of the horizontal moving bar; Manhole cover locking device, characterized in that consisting of. In the manhole consisting of a manhole frame and a manhole cover, Between the manhole frame 10 and the manhole cover 30 is provided with a locking device 200 for maintaining and releasing the locking of the manhole cover 30, The locking device 200 is formed of a protruding screw 210 which is rotatably fastened to the screw hole 100 of the manhole cover 30 and is integrally formed, and a circular rotary plate 230 having a pinion gear 220 formed on an outer circumference thereof. ); Rack gears 240 are respectively formed to be engaged with the pinion gear 220 of the circular rotating plate 230, the horizontal movement bar (250, 260) to make a linear motion; A moving hole 270 and 280 formed in the manhole frame 10 and inserted into the horizontal moving bar 250 and 260 so as to be protruded in and out and provided with a departure preventing member 400; And A reinforcing rib 310 formed at an outer circumference of the manhole frame 10 so as to communicate with the moving holes 270 and 280 and having fitting grooves 290 and 300 formed therein; Manhole cover locking device, characterized in that configured to include. According to claim 3, The separation preventing member 400 A vertical screw hole 410 formed to communicate vertically with the moving holes 270 and 280; A fastener 420 fastened to the vertical screw hole 410; A stopper ball 430 inserted into the fastener 420 so as to be protruding; A spring 440 provided in the fastener 420 to support the stopping ball 430; After the fastener 420 is fastened to the rear end group fastener 450 to support the spring 440; And A locking groove 460 formed in the horizontal moving bars 270 and 280 to stop the stopper ball 430 from being selectively caught to block the inner movement of the horizontal moving bars 250 and 260; Manhole cover locking device, characterized in that consisting of.

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