KR101829618B1 - Manhole Locking An Apparatus - Google Patents

Abstract

The present invention relates to a manhole cover locking device for preventing a manhole cover from being detached from a manhole cover frame due to a traffic or other impact of a vehicle, A manhole cover frame portion having a hole for inserting the manhole cover portion and having a support protrusion protruding inwardly from a lower portion of the hole to support the manhole cover portion; And a fastening fastening portion which is fastened to the upper surface of the supporting jaw so as to be fastened and connected to the upper surface of the supporting jaw and is fastened and connected to a central portion of the manhole cover portion and is fastened to the supporting jaw by fastening the manhole cover portion.

Description

{Manhole Locking An Apparatus}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole cover locking device, and more particularly, to a manhole cover locking device that can prevent a manhole cover from being detached from a manhole cover frame due to passage or other impact of a vehicle.

The manhole is generally installed in the basement on the road, and there are many facilities (transmission, distribution, communication, private line, etc.) inside the manhole, so that the workers and related persons often go in and out. It is necessary to prevent traffic accidents and safety accidents that may occur due to a mistake, and there is a possibility of damaging existing electric power facilities due to unauthorized penetration and insolvency construction, It should be approved after approval by the Administrative Institution and permission from the Facilities Management Department.

The manhole cover also serves as a passage through which a person can enter and exit to clean the underground. The manhole cover serves as a means for blocking and protecting a manhole having a hole shape from the outside, and is usually formed in a circular shape.

The manhole cover locking device is a device introduced to prevent the theft of the manhole cover in addition to preventing the occurrence of an impact sound generated when the manhole cover is abnormally deviated by the vehicle to cause a secondary safety accident or when the vehicle passes.

Korean Registered Utility Model No. 20-0306637 (registered Feb. 26, 2003) discloses a locking device for a manhole, in which a manhole cover is detachably attached to an upper end of a manhole frame, A plurality of locking members are downwardly protruded on a lower portion of a manhole cover formed on one side, and an elastic band provided with an inclined surface at the lower end of the protruding locking member is provided, and a locking groove, A plurality of locking protrusions are formed at equal intervals on the inner circumference of the manhole frame, and each of the locking protrusions is formed with an inclined surface at an upper portion thereof and a locking plate at the bottom thereof, do. According to the disclosed technology, since the locking device using the elastic force is integrally formed with the manhole cover and the manhole frame integrally formed with no additional locking device, the locking device can be provided by the casting operation, thereby reducing the manufacturing cost, So that the operator can be more easily locked so as to reduce the fatigue of the operator.

Korean Registered Utility Model No. 20-0404531 (Registered on Dec. 20, 2005) is an automatic locking device manhole which can prevent the damage of the vehicle and the damage of the human body caused by the opening of the manhole cover due to passage or other impact of the vehicle, ≪ / RTI > According to the disclosed technology, when the manhole cover is opened, when the handle is pulled upward, the latch is moved from the latching groove of the manhole body to the locking hole of the manhole body by opening or closing the manhole cover by using a handle used for opening or closing the manhole cover The lock is automatically released, and when the manhole cover is closed, the manhole cover is closed, and when the handle is released, the latch is pushed into the retaining groove of the manhole body by the force of the spring and is automatically locked.

In the conventional manhole cover locking device as described above, since the locking function is weakened over time, the manhole cover can not be tightly fixed to the manhole cover frame, so that the manhole cover shakes too much, The manhole cover can be detached from the manhole, and it is possible to damage the vehicle, the road or the person by the removal of the manhole cover, and it is difficult to prevent the opening of the manhole cover by the external force. Has many disadvantages.

Korean Registered Utility Model No. 20-0306637 Korean Registered Utility Model No. 20-0404531

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks in that a manhole cover and a manhole cover frame are fastened and connected to a fixing device so that a manhole cover is separated from a manhole cover frame The present invention provides a manhole cover locking device that can prevent a manhole cover from being opened.

According to one aspect of the present invention, there is provided a means for solving the above problems, comprising: a manhole cover for opening and closing a manhole; A manhole cover frame part for supporting the manhole cover part, the manhole cover part having a hole for inserting the manhole cover part and a supporting protrusion protruding inwardly from the lower part of the hole; And a fastening and securing part which is fastened and connected to the upper surface of the supporting jaw and fastened and connected to a central part of the manhole cover to fix the manhole cover part to the supporting jaw, to provide.

In one embodiment, the fastening and fixing portion includes: a fastening and fixing body, which is fastened and connected to a central portion of the manhole cover portion, and is fastened to the manhole cover portion; And a plurality of fastening and fixing bars for fixing one side of the fastening and fixing body to the side of the fastening and fixing body and another side of the fastening and fixing fastening to the upper surface of the supporting jaw.

In one embodiment, the manhole cover locking device may further include a lid fastening portion for fastening and coupling the central portion of the manhole cover portion and the central portion of the fastening and fixing body to fasten the manhole cover portion to the fastening and fixing body .

In one embodiment, the lid fastening portion comprises: a first threaded member having a threaded head at an upper end and a threaded lower portion and having a connecting bar connecting the threaded head to the threads; A first threaded head insertion groove member for inserting the threaded head into an upper end of a central portion of the manhole cover; A first connecting bar insertion groove member for inserting the connecting bar into a lower portion of the first threaded head insertion groove member; And a first female screw member formed at a central portion of the fastening and fixing body at a position opposite to the first connecting bar insertion groove member and fastened to the screw.

In one embodiment, the lid fastening portion may further include a cover member inserted into the first threaded head insertion groove member and covering the threaded head.

In one embodiment, the lid fastening portion is inserted into the side of the first threaded head insertion groove member, and is provided with a display member for indicating the unlocking of the thread by switching on; And a switch member provided on a lower surface of the first screw head insertion groove member for switching off the display member when the thread is fastened and for switching on the display member when the thread is unfastened, As shown in FIG.

In one embodiment, the manhole cover locking device may include a plurality of support jaw fasteners for fastening and coupling the upper surface of the support jaw and the other side of the fastening and fixing bar to each other to fix the fastening and fixing bar to the support jaw And the like.

In one embodiment, the support jaw coupling comprises: a second threaded member having a threaded head at an upper end thereof, a lower threaded threaded portion and a connecting bar connecting the threaded head to the threaded portion; A second threaded head insertion groove member for inserting the threaded head into the other upper end of the fastening and fixing bar; A second connecting bar inserting groove member for inserting the connecting bar into a lower portion of the second threaded head inserting groove member; A fastening and fixing bar insertion groove member formed on an upper surface of the support jaw for inserting another side of the fastening and fixing bar; And a second female screw member formed on a lower surface of the fastening and fixing bar insertion groove member and fastened to the screw.

In one embodiment, the manhole cover locking device is formed between the upper surface of the supporting jaw and the lower surface of the manhole cover, and when the supporting jaw is supporting the manhole cover, between the supporting jaw and the manhole cover And a shock absorber for absorbing an impact applied to the impact absorbing portion.

In one embodiment, the manhole cover locking device is formed between an inner surface of the manhole cover frame portion and an outer surface of the manhole cover portion to seal a space between an inner surface of the manhole cover frame portion and an outer surface of the manhole cover portion And a sealing part for providing the sealing part.

According to the present invention, there is provided a manhole cover locking device that is configured to prevent a manhole cover from being detached from a manhole cover frame due to passage or other impact of a vehicle by fastening and connecting a manhole cover and a manhole cover frame to a fixing device , The locking device is maintained in a locked state even after a lapse of time, and the lid is tightly fixed between the manhole cover and the manhole cover frame, so that the manhole cover is not shaken and the manhole cover Therefore, it is possible to eliminate the damage of the vehicle, the road or the human life due to the removal of the manhole cover, and also the manhole cover is prevented from being opened by the external force. Therefore, there is no fear that the manhole cover is stolen.

1 and 2 are views for explaining a locking device for a manhole cover in a first embodiment of the present invention.
Fig. 3 is a view for explaining a lid fastening part in Fig. 1 as a first example.
Fig. 4 is a view for explaining a lid fastening part in Fig. 3 as a second example.
Fig. 5 is a view explaining the lid fastening part in Fig. 3 as a third example.
6 is a view for explaining a switch member in Fig.
7 is a view for explaining the support jaw fastening part shown in Fig.
8 is a view for explaining a locking device for a manhole cover according to a second embodiment of the present invention.
9 is a view for explaining a locking device for a manhole cover in a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

The meaning of the terms described in the present invention should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

Now, a manhole cover locking apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 and 2 are views for explaining a locking device for a manhole cover in a first embodiment of the present invention.

Referring to FIG. 1, a locking device 100 of a manhole cover includes a manhole cover 110, a manhole cover frame 120, and a locking and fixing part 130.

The manhole cover 110 has a central portion thereof fastened and connected to the fastening and fixing part 130 and is supported by the supporting jaws of the manhole cover frame part 120 to open and close the manhole.

In one embodiment, the manhole cover 110 is formed in the shape of a circle, an ellipse, a quadrangle, or the like, and may be formed in a circular shape that is easy to perform mainly.

In one embodiment, the manhole cover 110 is formed of a hard material such as, for example, cast iron or concrete, and is formed mainly of cast iron to allow the manhole to be opened and closed.

In one embodiment, the manhole cover 110 may have holes in its central portion to pass through fastening means such as screws, bolts or nails.

The manhole cover frame 120 forms a hole for inserting the manhole cover 110 and has a supporting protrusion protruding inwardly from the lower portion of the hole to support the manhole cover 110, And a plurality of fastening fasteners 130 are fastened and connected to the upper surface of the jaw.

In one embodiment, the manhole cover frame 120 is formed in the shape of a circle, an ellipse, a quadrangle, or the like, and may be formed in a circular shape that is easy to be applied mainly.

In one embodiment, the manhole cover frame portion 120 is formed to have a height of about 10 cm to 14 cm, and may be integrally installed on the ground.

In one embodiment, the support jaws may protrude about 1 cm to 3 cm inwardly at the bottom of the hole to support the manhole cover 110.

In one embodiment, the manhole cover frame portion 120 can absorb the impact and can stably support the manhole cover 110 using a heat resistant material (e.g., silicone) .

The fastening and fixing part 130 is fastened and connected to the upper surface of the supporting jaw by a plurality of openings and fastened and connected to the central part of the manhole cover part 110 so that the manhole cover part 110 is fastened to the supporting jaw.

In one embodiment, the fastening fixture 130 may be formed from, for example, cast iron, aluminum, or the like.

In one embodiment, the fastening fixture 130 may include a fastening fixture body 131 and a plurality of fastening bars 132.

One side of the fastening and fixing bar 132 is fixed to the side surface of the fastening and fixing body 131 and fastened and connected to the central portion of the manhole cover 110 and fastened to the manhole cover 110.

In one embodiment, the fastening and fixing body 131 is formed in a plate shape such as a circle, an ellipse, or a quadrangle, and a hole may be formed at a central portion thereof to be fastened and connected to a central portion of the manhole cover 110.

One side of the fastening and fixing bar 132 is fixed to the side surface of the fastening and fixing body 131 and the other side of the fastening and fixing bar 132 is fastened and connected to the upper surface of the support jaw and fastened to the support jaw.

In one embodiment, the fastening and fixing bars 132 are formed at regular intervals and may be formed in three or more, and may be fastened and connected to the upper surface of the support jaw.

The locking device 100 of the manhole cover as described above may further include a lid fastening part 140 and a plurality of supporting jaw fastening parts 150.

The lid fastening part 140 is formed by fastening and connecting the central part of the manhole cover part 110 and the central part of the fastening fastening body 115 so as to fix the manhole cover part 110 to the fastening and fixing body 115 Do it.

The supporting jaw fastening part 150 fastens and connects the upper surface of the supporting jaw and the other side of the fastening fastening bar 132 to fasten the fastening fastening bar 132 to the supporting jaw.

The locking device 100 of the manhole cover as described above is constructed such that the manhole cover part 110 and the manhole cover frame part 120 are fastened and connected to the fastening and fixing part 130, It is possible to prevent the manhole cover part 110 from being detached from the manhole cover frame part 120 so that the locking and fixing part 130 can maintain the locking function even after the lapse of time, The manhole cover 110 can be prevented from being shaken and the manhole cover 110 can be prevented from being detached from the manhole even when the vehicle is passing or other shocks. The manhole cover 110 can be prevented from being stolen by the external force so as to prevent the opening of the manhole cover 110. As a result, Can be eliminated.

Fig. 3 is a view for explaining a lid fastening part in Fig. 1 as a first example.

3, the lid fastening portion 140 includes a first threaded member 141, a first threaded head insertion slot member 142, a first connecting bar insertion slot member 143, a first female screw member 144 ).

The first threaded member 141 has a connecting bar 1413 having a threaded head 1411 at the top and a threaded portion 1412 at the bottom and connecting the threaded head 1411 and the threaded portion 1412, The threaded head 1411 is inserted into the first screw head insertion groove member 142 and the connecting bar 1413 is inserted into the first connecting bar insertion groove member 143 and the thread 1412 and the first female screw member 144).

The first threaded member 141 is formed of, for example, a bolt or a screw and inserted into the first threaded head insertion slot member 142 to connect the manhole cover 110 to the fastening fixture 130 ).

In one embodiment, the first threaded member 141 has a + (E.g., a screwdriver, a spanner, or the like).

The first threaded head insertion groove member 142 has a first connecting bar insertion groove member 143 formed at a lower portion thereof and inserts a threaded head 1411 into an upper end of a central portion of the manhole cover portion 110.

The first threaded head insertion groove member 142 is formed to have a size equal to or slightly larger than the size of the threaded head 1411 so that the threaded head 1411 is inserted and the threaded head 1411 is moved outward So that it does not protrude.

The first connecting bar insertion groove member 143 inserts the connecting bar 1413 into the lower portion of the first threaded head insertion slot member 142.

The first female screw member 144 is formed in a central portion of the fastening and fixing body 115 at a position opposite to the first connecting bar insertion groove member 143 and fastened with the thread 1412.

In one embodiment, the first female screw member 144 may be fastened to the thread 1412 using a screw tightening means such as, for example, a screwdriver, a spanner, or the like.

Fig. 4 is a view for explaining a lid fastening part in Fig. 3 as a second example.

Referring to Fig. 4, the lid fastening portion 140 includes a lid member 145. Fig.

The lid member 145 is inserted into the first threaded head insertion slot member 142 to cover the threaded head 1411.

In one embodiment, the lid member 145 may have a plurality of lid-removing grooves 1451 formed in the upper surface rim.

In one embodiment, the lid member 145 is inserted into the first threaded head insertion slot member 142 so that people other than the manager can not release the fastening of the threaded head 1411, Can be prevented from being stolen.

In one embodiment, the cover removal grooves 1451 may be formed in an 'a' shape and may be formed in two or more numbers.

The lid fastening portion 140 having the above-described configuration may further include a lid removing device member 148. [

The lid removing device member 148 is formed in the form of a clamp and has an insertion protrusion at the lower end thereof, and is inserted into the lid removing groove 1451 to remove the lid.

In one embodiment, the lid removing device member 148 is formed by inserting the insertion protrusion provided at the lower end of the threaded head 1411 into the lid removing groove 1451 formed in an ' The lid member 145 inserted into the first threaded head insertion slot member 142 can be easily taken out from the first threaded head insertion slot member 142.

Fig. 5 is a view explaining the lid fastening part in Fig. 3 as a third example.

5, the lid fastening part 140 includes a display member 146 and a switch member 147. [

The display member 146 is inserted into the side of the first threaded head insertion slot member 142 and displays the disengagement of the screw thread 1412 by switching on.

In one embodiment, the display member 146 may include power supply means (e.g., battery, small battery, etc.) and display means (e.g., LED).

In one embodiment, the display member 146 is connected to the power source means by display means, and by switching on the switch member 147, the power source is supplied to the display means to illuminate the display means, The power supply can be cut off by the switching-off of the power supply.

The switch member 147 is provided on the lower surface of the first threaded head insertion slot member 142 so as to switch off the display member 146 when the screw thread 1412 is fastened, And turns on the display member 146 at the time of release.

The switch member 147 is formed between the first threaded head insertion slot member 142 and the display member 146 so that the display member 146 is switched on according to the fastening state of the thread 1412, / Off.

Fig. 6 is a view for explaining a switch member in Fig. 5;

6, the switch member 147 includes a case 1471, a first connection terminal 1472, a second connection terminal 1473, a pressing means 1474, a switching means 1475, a resilient means 1476 ).

The case 1471 is formed on the lower surface of the first threaded head insertion slot member 142 and has a first connection terminal 1472 protruded from one side of the inner side and a second connection terminal 1473 And the resilient means 1476 is provided between the lower surface and the inner lower surface of the switching means 1475.

One side of the first connection terminal 1472 protrudes from one side of the inner surface of the case 1471 and the other side of the first connection terminal 1472 is connected to the + power terminal of the display member 146.

In one embodiment, the first connection terminal 1472 is a conductor (e.g., a metal such as silver, copper, or iron) that conducts electricity. When the switching unit 1475 is turned on, And the power supply terminal of the power supply.

The second connection terminal 1473 is provided with a pressing means 1474 between the first connection terminals 1472. One side of the second connection terminal 1473 protrudes from the other side of the inner surface of the case 1471, 146).

The second connection terminal 1473 is a conductor (for example, a metal such as silver, copper, or iron) that conducts electricity. When the switching unit 1475 is turned on, The power supply terminal of the battery can be energized.

The pressing means 1474 is formed between the first connection terminal 1472 and the second connection terminal 1473 by fixing the switching means 1475 at the lower end so that when the thread 1412 is fastened, 1411 and rises when the screw thread 1412 is unfastened.

In one embodiment, the pressing means 1474 may not affect the switching on / off of the switching means 1475 as a non-conducting (i.e., insulator) (e.g., plastic) .

The switching means 1475 is provided between the lower surface and the inner lower surface of the case 1471 and is provided at the lower end of the pressing means 1474 so that when the pressing means 1474 is lowered Off between the first connection terminal 1472 and the second connection terminal 1473 and the switching connection between the first connection terminal 1472 and the second connection terminal 1473 when the pressing means 1474 is lifted up, I will.

In one embodiment, the switching means 1475 is a conductor (e.g., a metal such as silver, copper, or iron) that conducts electricity and is connected to the first connection terminal 1472 The second connection terminal 1473 can be switched on.

The elastic means 1476 is provided between the lower surface of the switching means 1475 and the inner lower surface of the case 1471 and is compressed by the lower surface of the switching means 1475 at the time of the lowering of the pressing means 1474 And pushes up the lower surface of the switching means 1475 when the pressing means 1474 is lifted.

In one embodiment, the resilient means 1476 can be compressed or decompressed by a lowering or elevating of the pressing means 1474, for example as a resilient body, such as a spring or the like.

The switch member 147 having the above-described configuration is configured such that the pressing means 1474 is lowered by the lower surface of the threaded head 1411 when the screw thread 1412 is fastened (that is, normal) The switching means 1475 is lowered to switch off the connection between the first connection terminal 1472 and the second connection terminal 1473 so that the connection between the first connection terminal 1472 and the second connection terminal 1473 (I.e., the + power source terminal and the - power source terminal) of the display member 146 by switching off. The power supply means of the display member 146 is not energized from the first connection terminal 1472 and the second connection terminal 1473 and can not supply power to the display means of the display member 146, It is possible to prevent the display means from being consumed and to prevent the consumption of electricity.

The switch member 147 having the above-described configuration is configured such that the pushing means 1474 rises by the lower surface of the threaded head 1411 when the screw thread 1412 is disengaged, The switching means 1475 rises to switch on the first connection terminal 1472 and the second connection terminal 1473 so that the first connection terminal 1472 and the second connection terminal 1473 are switched off (That is, the + power source terminal and the - power source terminal) of the display member 146. In addition, The power supply means of the display member 146 is energized from the first connection terminal 1472 and the second connection terminal 1473 to supply power to the display means of the display member 146, To inform the manager that the screw thread 1412 is disengaged.

7 is a view for explaining the support jaw fastening part shown in Fig.

7, the supporting jaw coupling part 150 includes a second threaded member 151, a second threaded head insertion slot member 152, a second coupling bar insertion slot member 153, Member 154, and a second female screw member 155.

The second threaded member 151 is provided with a connecting bar 1513 having a threaded head 1511 at the upper end and a thread 1512 at the lower end and connecting the threaded head 1511 and the thread 1512, The threaded head 1511 is inserted into the second screw head insertion groove member 152 and the connecting bar 1513 is inserted into the second connection bar insertion groove member 153 and the thread 1512 and the second female screw member 154).

The second threaded member 151 is formed of, for example, a bolt, a screw or the like and is inserted into the second threaded head insertion slot member 152 so that the fastening fixture 130 is inserted into the manhole cover frame portion 120). ≪ / RTI >

The second threaded head insertion groove member 152 has a second connection bar insertion groove member 153 formed at a lower portion thereof and a threaded head 1511 inserted into the other upper end of the fastening and fixing bar 132.

In one embodiment, the second threaded head insertion groove member 152 is formed to have a size equal to or slightly larger than the size of the threaded head 1511 so that the threaded head 1511 is inserted, So that it does not protrude.

The second connecting bar insertion groove member 153 inserts the connecting bar 1513 into the lower part of the second threaded head insertion slot member 152.

The fastening main body insertion groove member 154 is formed on the upper surface of the support jaw so as to insert the other side of the fastening and fixing bar 132.

In one embodiment, the fastening and fixing body insertion groove member 154 may be formed by inserting the other side of the fastening and fixing bar 132 and, when the manhole cover 110 is positioned on the upper surface of the support jaw, 110 may not protrude out of the ground.

The second female screw member 155 is formed on the lower surface of the fastening body insertion groove member 154 and is fastened with the screw thread 1512.

In one embodiment, the second female screw member 155 can be fastened to the thread 1512 using a screw tightening means such as, for example, a screwdriver, a spanner, or the like.

8 is a view for explaining a locking device for a manhole cover according to a second embodiment of the present invention.

Referring to FIG. 8, the manhole cover locking device 200 includes a manhole cover 110, a manhole cover frame 120, a fastening and fixing part 130, a lid fastening part 140, (150), and a shock absorbing portion (210). Here, the manhole cover 110, the manhole cover frame 120, the fastening and fixing part 130, the lid fastening part 140, and the plurality of support jaw fastening parts 150 are similar to the components in FIG. 1 The description thereof will be omitted below, and only the other parts will be described.

The shock absorbing portion 210 is formed between the upper surface of the supporting jaw and the lower surface of the manhole cover 110 so that the supporting jaw is formed at the upper surface of the manhole cover 110 when the supporting jaw supports the manhole cover 110, Thereby absorbing the impact applied between them.

In one embodiment, the impact absorbing portion 210 is, for example, a rubber packing. Since the impact absorbing portion 210 absorbs impact, the shock absorbing portion 210 absorbs the impact applied between the supporting jaw and the manhole cover 110, 110 and the manhole cover frame 120 can be increased.

9 is a view for explaining a locking device of a manhole cover in a third embodiment of the present invention

Referring to FIG. 9, the manhole cover locking device 300 includes a manhole cover 110, a manhole cover frame 120, a fastening and fixing part 130, a lid fastening part 140, A portion 150, and a sealing portion 310. Here, the manhole cover 110, the manhole cover frame 120, the fastening and fixing part 130, the lid fastening part 140, and the plurality of support jaw fastening parts 150 are similar to the components in FIG. 1 The description thereof will be omitted below, and only the other parts will be described.

The sealing portion 310 is formed between the inner surface of the manhole cover frame portion 120 and the outer surface of the manhole cover 110 so as to cover the inner surface of the manhole cover frame portion 120 and the inner surface of the manhole cover portion 110. [ Thereby sealing the space between the outer side surfaces.

In an embodiment, the closure 310 may be, for example, a rubber packing, between the inner surface of the manhole cover frame portion 120 and the outer surface of the manhole cover 110 (i.e., between the manhole cover 110 and the outer surface of the manhole cover 110) And a minute space between the manhole cover 110 and the manhole cover frame 120 can be blocked. In case of rain or snow, the manhole cover frame 120 is inserted into the manhole cover frame 120, It is possible to prevent the rain or the snow from entering into the minute interspace of the portion 120. [

As described above, the embodiment of the present invention is not limited to the above-described apparatus and / or method, but may be implemented by a program for realizing a function corresponding to the configuration of the embodiment of the present invention and a recording medium on which the program is recorded And the present invention can be easily implemented by those skilled in the art from the description of the embodiments described above. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

100, 200, 300: Manhole cover lock
110: Manhole cover part
120: Manhole cover frame part
130:
131: fastening fixing body
132: fastening fixing bar
140: lid fastening part
141: first thread member
1411, 1511: threaded head
1412, 1512:
1413, 1513: Connection bar
142: first threaded head insertion groove member
143: first connecting bar insertion groove member
144: first female screw member
145: lid member
1451: Cover removal groove
146:
147:
1471: Case
1472: first connection terminal
1473: Second connection terminal
1474: Push means
1475: Switching means
1476: Elasticity means
148: lid removal device member
150: Support jaw coupling part
151: second thread member
152: second threaded head insertion groove member
153: second connecting bar insertion groove member
154: Fastening main body insertion groove member
155: second female screw member
210: shock absorber
310:

Claims (10)

A manhole cover for opening and closing the manhole;
A manhole cover frame part for supporting the manhole cover part, the manhole cover part having a hole for inserting the manhole cover part and a supporting protrusion protruding inwardly from the lower part of the hole;
A fastening and fixing body which is fastened to the upper surface of the support jaw so as to be fastened and connected to the upper surface of the support jaw and is fastened and connected to a central portion of the manhole cover portion and fixedly fastened to the manhole cover portion; And a plurality of fastening and fixing parts including one side fixed to the side surface of the fastening and fixing body and the other side fastened to the upper surface of the supporting jaw and fastened to the supporting jaw; And
And a lid fastening part for fastening the central part of the manhole cover part and the central part of the fastening and fixing body to each other to fix the manhole cover part to the fastening and fixing body,
Wherein the lid fastening portion comprises: a first threaded member having a threaded head at an upper end thereof, a lower threaded portion, and a connecting bar connecting the threaded head to the threaded portion; A first threaded head insertion groove member for inserting the threaded head into an upper end of a central portion of the manhole cover; A first connecting bar insertion groove member for inserting the connecting bar into a lower portion of the first threaded head insertion groove member; A first female screw member formed at a central portion of the fastening and fixing body at a position opposite to the first connecting bar insertion groove member and for fastening to the thread; A display member inserted into the side of the first threaded head insertion slot member to display the unlocking of the thread by switching on; And a switch member provided on a lower surface of the first screw head insertion groove member for switching off the display member when the thread is fastened and for switching on the display member when the thread is unfastened, / RTI >
The switch member includes: a case; A first connection terminal protruding from one side of the inner side of the case and having a first side connected to a positive power terminal of the display member; A second connection terminal having one side protruding from the other side of the inner side of the case and the other side connected to the power source terminal of the display member; A pressing means formed between the first connection terminal and the second connection terminal and descending by the lower surface of the threaded head when the thread is fastened and rising when the thread is unfastened; Wherein the first connection terminal and the second connection terminal are fixedly formed on the lower end of the pressing means so that the first connection terminal and the second connection terminal are switched off when the pressing means is lowered, Switching means for switching on and off between the two connection terminals; And a switching means which is provided between a lower surface of the switching means and an inner lower surface of the case and which is compressed by the lower surface of the switching means when the pressing means is lowered, And elastic means for pushing up the lower surface,
The lid-
And a cover member inserted into the first threaded head insertion groove member to cover the threaded head,
The lid member
And a plurality of lid-removing grooves formed in an " a " shape on an upper surface rim.
delete delete delete delete delete The method according to claim 1,
Further comprising a plurality of supporting jaw coupling parts for coupling and fixing the upper surface of the supporting jaw and the other side of the coupling and fixing bar so as to fix the coupling and fixing bar to the supporting jaw, .
8. The apparatus according to claim 7, wherein the support jaw-
A second threaded member having a threaded head at an upper end thereof and a threaded portion at a lower portion thereof and having a connecting bar connecting the threaded head to the threaded portion;
A second threaded head insertion groove member for inserting the threaded head into the other upper end of the fastening and fixing bar;
A second connecting bar inserting groove member for inserting the connecting bar into a lower portion of the second threaded head inserting groove member;
A fastening and fixing bar insertion groove member formed on an upper surface of the support jaw for inserting another side of the fastening and fixing bar; And
And a second female screw member formed on a lower surface of the fastening and fixing bar insertion groove member and fastened to the screw.
The method according to claim 1,
A shock absorber formed between the upper surface of the support jaw and the lower surface of the manhole cover for absorbing an impact applied between the support jaw and the manhole cover when the support jaw supports the manhole cover, Wherein the manhole cover locking device further comprises a locking device.
The method according to claim 1,
And a hermetically sealed portion formed between an inner surface of the manhole cover frame portion and an outer surface of the manhole cover portion to seal a space between an inner surface of the manhole cover frame portion and an outer surface of the manhole cover portion. Lid lock.

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