KR102136058B1 - Manhole device for manhole with locking function - Google Patents

Abstract

The present invention relates to an inner cover device for a manhole having a locking function. More specifically, the inner cover device, which is made to enhance security by being installed on a manhole comprising a manhole frame body and a manhole cover detachably fastened with the manhole frame body, includes: an inner cover panel placed in the upper part of a ring-shaped engaged protrusion part formed inside the manhole frame body; a latch of a bent structure formed on the inner cover panel to be engaged with the engaged protrusion part; and a locking unit connecting and fixing the inner cover panel to the engaged protrusion part or disconnecting and unfixing the same. Therefore, as the locking unit is installed in an edge part of the bottom of the inner cover panel to be adjacent to the engaged protrusion part of the manhole frame body, a movement range of the locking bar is reduced to enable the locking bar to be efficiently engaged and reduce the friction and engagement of the locking bar in the operation procedure, and front and rear slits guiding the locking bar are formed to have different widths, thereby reducing friction and obstructing during a procedure in which the locking bar is moved.

Description

Manhole device for manhole with locking function}

The present invention relates to an inner lid device for a manhole having a locking function, and more specifically, the locking unit is installed on the bottom edge of the inner lid panel so that the locking unit is close to the locking jaw of the manhole frame body, thereby reducing the movement range of the locking bar. Efficient fastening is possible, and the friction and jam of the lock bar can be reduced during operation, and the width of the front slit and rear slit through which the lock bar is guided is formed differently, so that friction and jam can be reduced during the process of moving the lock bar. It relates to an inner lid device for a manhole having a locking function.

Cogeneration/gas, electricity, communication, water and sewage, and sewage/excellent piping are buried underground to make more efficient use of ground space. In addition, a manhole that leads to the basement is installed on the ground so that the manager can periodically check the piping.

The manhole is provided with a lid that blocks access. The manhole cover is made of heavy steel material so that ordinary people cannot easily lift it. A plurality of holes are formed in the manhole cover. This hole was originally formed to fit a tool used to transport the manhole cover, but it also served as a passage for rainwater or dirt. Therefore, underground tunnels are often filled with rainwater or dirt, so they are kept in a very humid environment. However, this environmental condition is very harmful to the durability of power lines and communication networks, and thus an appropriate waterproof cap is needed. In addition, the conventional manhole was not equipped with a separate locking means for restricting the entrance of the general public. Therefore, there was a problem that criminals or hobos secretly infiltrated underground tunnels and used them as hiding places or damaged communication networks.

When the above-mentioned problem emerged, a lid in a manhole equipped with a locking function was conventionally proposed. The lid in the manhole is provided with a key in the center and a clasp to operate the key, so that the lid in the manhole can be opened by rotation of the key. In addition, the lid in the manhole was made to match the manhole frame so as to have a waterproof function to some extent.

However, in the conventional manhole cover, there is a problem in that the key is disposed at the center of the cover and requires excessive force to rotate the key. Problems that frequently occur due to jams occur.

The above-described invention means the background art in the technical field to which the present invention belongs, and does not mean the prior art.

Utility Model Registration No. 192088

The present invention has been devised to solve the above-mentioned conventional problems, and the object of the present invention is to install the locking unit on the bottom edge of the inner lid panel so that it is close to the locking jaw of the mantle frame body, and the moving range of the locking bar. It is possible to reduce the friction and jam in the process of moving the lock bar by differently forming the width of the front slit and the rear slit where the lock bar is guided. An object of the present invention is to provide an inner lid device for a manhole having a locking function.

The present invention is provided in a manhole composed of a manhole frame body and a manhole cover composed of a manhole cover detachably fastened to the manhole frame body, and in an inner lid device configured to increase security, an annular shape formed inside the manhole frame body An inner lid panel disposed on the upper portion of the locking jaw, a locking clasp formed on the inner lid panel and bent to the locking jaw, and a locking unit for fixing or disconnecting the inner lid panel to the locking jaw It is characterized by consisting of.

In addition, the locking unit is fixed to the bottom surface of the inner lid panel, an operating space is formed inside, a front slit is formed on one side, a locking housing formed with a rear slit facing the front slit, the front slit and the rear slit It is disposed through the lock bar is formed with a working hole, and a working protrusion formed to be inserted through a through hole formed in the inner lid panel is formed in the center of the upper surface, and a rotating driving panel formed with a rotating projection formed on the bottom surface to fit into the working field hole. It is formed by, characterized in that the lock bar is moved by the rotation of the rotation drive panel.

In addition, the width of the rear slit is formed to be wider than the width of the front slit, it is characterized in that to prevent the locking bar from being jammed in the rear slit in the process of moving the rotation panel.

In addition, a guide portion is further provided on the lock housing to guide the rotating drive panel, the guide portion having an annular guide jaw formed on an inner surface of the lock housing, and the rotation driving panel disposed on the guide jaw. It is characterized in that it is made of a guide ring fitted to the inner surface of the locking housing to maintain a constant interval.

In addition, the rotating projection is formed in a circular rod shape, the rotating projection is further fastened with a rotating bearing, the rotating bearing is further fitted with a guide rotating tube to be rotated, and the guide rotating tube is further equipped with a friction elastic tube. By fitting, it is guided to the working field hole in the process of rotating the rotary driving panel, the guide rotating tube is rotated by the rotating bearing to reduce friction, and the friction elastic tube is prevented from sliding due to friction with the working field hole And to prevent noise from being generated.

The inner lid device for a manhole having a locking function according to the present inventor is installed on the bottom edge portion of the inner lid panel so that the locking unit is close to the locking jaw of the manhole frame body, thereby reducing the moving range of the locking bar and enabling fastening. In the process, it is possible to reduce friction and jam of the lock bar, and it is possible to reduce friction and jam during the process of moving the lock bar by differently forming the widths of the front and rear slits on which the lock bar is guided.

1 is a cross-sectional view showing a state in which a fastening device for a manhole having a locking function according to the present invention is installed.
Figure 2 is a cross-sectional view showing the process of installing the inner cover device for a manhole having a locking function according to the present invention.
3 is a plan view showing the inner lid device for a manhole having a locking function according to the present invention.
Figure 4 is an exploded perspective view showing an inner lid device for a manhole having a locking function according to the present invention.
5 is a side view showing the inner lid device for a manhole having a locking function according to the present invention.
Figure 6 is a cross-sectional plan view showing a locking unit of the inner lid device for a manhole having a locking function according to the present invention.
7 is a view showing the operating state of the locking unit of the inner lid device for a manhole having a locking function according to the present invention.
Figure 8 is a side cross-sectional view showing a locking unit of the inner cover device for a manhole having a locking function according to the present invention.
9 is a view showing another embodiment of the locking unit of the inner lid device for a manhole having a locking function according to the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the inner cover device for a manhole having a locking function according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, definitions of these terms should be made based on the contents throughout this specification.

In addition, the following examples are not intended to limit the scope of the present invention, but to be presented by way of example only, and there may be various embodiments implemented through the technical idea.

1 is a cross-sectional view showing a state in which a fastening device for a manhole having a locking function according to the present invention is installed. Figure 2 is a cross-sectional view showing the process of installing the inner cover device for a manhole having a locking function according to the present invention. 3 is a plan view showing the inner lid device for a manhole having a locking function according to the present invention. Figure 4 is an exploded perspective view showing the inner lid device for a manhole having a locking function according to the present invention. 5 is a side view showing the inner lid device for a manhole having a locking function according to the present invention. Figure 6 is a cross-sectional plan view showing a locking unit of the inner lid device for a manhole having a locking function according to the present invention. 7 is a view showing the operating state of the locking unit of the inner lid device for a manhole having a locking function according to the present invention. Figure 8 is a side cross-sectional view showing a locking unit of the inner cover device for a manhole having a locking function according to the present invention. 9 is a view showing another embodiment of the locking unit of the inner lid device for a manhole having a locking function according to the present invention.

As shown in the drawing, the inventor's inner lid device 10 having a locking function (hereinafter referred to as a inner lid device for convenience of description) prevents entry through a manhole from the outside and stinks are leaked to the outside. It is installed in a manhole composed of a manhole frame body 100 and a manhole cover that is detachably fastened to the manhole frame body 100 to prevent it, and the inner lid device 10 is designed to increase security, such as The inner lid device 10 is composed of the inner lid panel 20, the catch 30 and the lock unit 40.

The inner lid panel 20 is made of a metal material and is formed in a circular panel shape. The inner lid panel 20 is disposed on the top of the annular locking jaw portion 200 which is integrally formed inside the mantle frame body 100.

The catch 30 is made of a metal material and is welded or integrally formed on one side of the bottom surface of the inner lid panel 20, so that it is caught by the catch jaw 200. The catch 30 is formed in an angled structure. The latch 30 is engaged with the bottom surface of the locking jaw portion 200, thereby locking and fixing the inner lid panel 20.

The locking unit 40 connects the inner lid panel 20 to the locking jaw part 200 or releases the connection fixing. The locking unit 40 is formed on the other side of the bottom surface of the inner lid panel 20 so as to correspond to the latch 30.

The locking unit 40 is screwed to the bottom surface of the inner lid panel 20 and fixed, an operating space is formed inside, a curved front slit 411 is formed on one side, and facing the front slit 411 A circular locking housing 41 having a curved rear slit 412 and a front working slit 421 connected to the front slit 411 and the rear slit 412 are disposed to penetrate and bias the central portion. The formed locking bar 42 and the end of the working projection 431 fitted through the through hole 21 formed in the inner lid panel 20 are welded to the center of the upper surface and fixed, and the working field hole 421 The rotation protrusion 432 is formed of a rotation driving panel 43 formed on the bottom surface so as to fit into the lock bar 42 to be moved by rotation of the rotation driving panel 43.

That is, when the operator rotates the working projection 431 disposed to protrude through the through hole 21 of the inner lid panel 20 with a tool, the rotation driving panel 43 rotates while the lock bar 42 ) And rotates the front slit 411 in the direction of the locking jaw portion 200 so that the end of the locking bar 42 is disposed on the bottom surface of the locking jaw portion 200, so that the locking bar ( 42) is fixed by the fastening the inner lid panel 20, the lock bar 42 disposed on the bottom surface of the locking jaw portion 200 when rotating the rotary drive panel 43 in the opposite direction to the locking direction By locking the end portion of the front slit 411, the lock is released.

At this time, when the rotation driving panel 43 rotates, the lock bar 42 moves (rotates) along the width direction of the rear slit 412 and moves in a straight line, and the lock bar according to the rotation direction. The end of 42 is drawn out or drawn out through the front slit 411.

Here, on the outer surface of the locking housing 41, a vibrator, which is a vibrator, is further screwed, so that the vibration generated by the vibrator is rotated, and the rotation is driven by rotation of the rotation driving panel 43 and the rotation driving panel 43. It is preferable to prevent the bar 42 from being jammed or damaged due to friction.

In addition, by forming ball bearings on the inner surfaces of the front slit 411 and the rear slit 412, and guiding the lock bar 42 to be moved, when the lock bar 42 moves, the front slit 411 It is desirable to prevent the rear slit 412 from being jammed.

The inner periphery of the locking housing 41 forms a working groove of a spiral, and a working projection of a spiral is formed on an edge of the rotary driving panel 43, so that the working projection of the rotary driving panel 43 is formed in the working groove. Is fastened by screwing so as to be guided and elevated along the operating groove by rotation of the rotating driving panel 43, thereby preventing the rotating driving panel 43 from being tilted and jammed during the rotating process, and being rotated. It is preferable to prevent the rotation drive panel 43 from being rotated by shock or vibration transmitted from the outer circumference.

In addition, the inner surface of the locking housing 41 is screwed or welded to one end of the elastic pressing coil spring, and the other end is fixed by screwing or welding to the bottom surface of the lock bar disposed inside the locking housing 41 By doing so, the locking bar 42 is pressed in the direction of the front slit 411 by the elasticity of the elastic pressing coil spring, separated from the locking jaw part 200 by external shock or vibration, or the rotary driving panel ( It is desirable to prevent the 43) from rotating.

The width of the rear slit 412 is formed to be wider than the width of the front slit 411, so that the lock bar 42 is moved while the rotation driving panel 43 is rotated to the rear slit 412. It is to prevent jamming.

The width of the front slit 411 is formed to be equal to or larger than the width of the lock bar 42, so that the lock bar 42 causes the front slit 411 to be rotated by the rotation of the rotation driving panel 43. Through or in a straight line, the rear slit 412 moves in a straight line and rotates along the width of the rear slit 412.

The lock housing 41 is further provided with a guide portion 50 to guide the rotating drive panel 43 that is rotated, and the guide portion 50 is of an annular shape formed on the inner surface of the lock housing 41 The guide jaw portion 51 and the guide to be screwed or forcibly fitted into the inner surface of the locking housing 41 to maintain a constant distance from the rotation driving panel 43 disposed on the guide jaw portion 51 Made of a ring 52, it is prevented from being inclined or jammed in the process of rotating the rotary drive panel 43.

The upper surface of the guide jaw portion 51 and the bottom surface of the guide ring 52 maintain a predetermined distance and provide guide rollers to reduce friction and prevent jamming in the process of rotating the rotary drive panel 43 Do.

The rotating protrusion 432 is formed in a circular rod shape, the rotating protrusion 432 further fastens a rotating bearing 432a, and the rotating bearing 432a further fits a guide rotating tube 432b to be rotated. When the rotating rotation panel 43 is rotated, the guide rotation tube 432b is guided to the operation field hole 421 by further inserting a friction elastic tube 433c into the guide rotation tube 432b. It is rotated by the rotary bearing 432a to reduce friction, and the friction elastic tube 433c is prevented from sliding due to friction with the operation field hole 421 and noise is prevented.

The operation field hole 421 formed in the lock bar 42 is curved.

That is, in the process in which the lock bar 42 is rotated while being rotated while the rotation driving panel 43 is rotated, a rotation radius is reduced to reduce friction between the front slit 411 and the rear slit 412. It is preferred.

One embodiment of the present invention described above is only exemplary, and those skilled in the art to which the present invention belongs will appreciate that various modifications and other equivalent embodiments are possible. . Therefore, it will be understood that the present invention is not limited to the forms mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents, and substitutes within the spirit and scope of the invention as defined by the appended claims.

10: inner lid device
20: inner lid panel
21: through hole
30: clasp
40: lock unit
41: lock housing
411: front slit
412: rear slit
42: lock bar
421: Operation hall
43: rotating drive panel
431: operation projection
432: rotating projection
432a: Rotary bearing
432b: Guide rotation tube
433c: Friction elastic tube
50: guide unit
51: guide jaw
52: guide ring
100: manhole frame body
200: locking jaw

Claims (5)

In the manhole frame body and a manhole composed of a manhole cover that is detachably fastened to the manhole frame body, in the inner lid device to increase the security,
The inner lid panel is disposed on the top of the annular locking jaw formed on the inside of the manhole frame body, the fastening of the bent structure is formed on the inner lid panel, and is hooked to the locking jaw, and the inner lid panel is the locking jaw In the inner cover device for a manhole having a locking function consisting of a locking unit for fixing the connection or releasing the connection,
The locking unit is fixed to the bottom surface of the inner lid panel, an operating space is formed inside, a front slit is formed on one side, and a locking housing formed with a rear slit facing the front slit,
A lock bar disposed through the front slit and the rear slit and having a working field hole,
An operation protrusion fitted through the through hole formed in the inner lid panel is formed in the center of the upper surface, and a rotation driving panel formed in the bottom surface is formed so that the rotation protrusion is fitted into the operation field hole,
The lock bar is moved by rotation of the rotation driving panel,
By welding one end of the elastic pressing coil spring to the inner surface of the locking housing, and fixing the other end to the bottom surface of the locking bar disposed inside the locking housing, the locking bar is held by the elasticity of the elastic pressing coil spring. By pressing in the direction of the front slit, it is prevented from being separated from the locking jaw by the external shock or vibration or the rotating driving panel is rotated,
A guide portion is further provided on the lock housing to guide the rotating drive panel being rotated,
The guide portion is formed of an annular guide jaw formed on the inner surface of the lock housing, and a guide ring fitted on the inner surface of the lock housing so that a predetermined distance is maintained between the rotation driving panel disposed on the guide jaw,
Maintaining a predetermined interval on the upper surface of the guide jaw portion and the lower surface of the guide ring, and providing guide rollers to reduce friction and prevent jamming in the process of rotating the rotary drive panel,
On the outer surface of the locking housing, a vibrator, which is a vibrator, is further screwed, so that the rotational driving panel that rotates the vibration generated by the vibrator and the locking bar that is moved by the rotation of the rotating driving panel are jammed or damaged by load due to friction. To prevent
Ball holes are further formed on the inner surfaces of the front slit and the rear slit to guide the moving lock bar, thereby preventing the locking bar from being caught by the front slit and the rear slit when moving. Inner lid device.
delete According to claim 1,
The width of the rear slit is formed to be wider than the width of the front slit, for the manhole having a locking function, characterized in that to prevent the locking bar from being caught in the rear slit during the rotation of the rotating driving panel Inner lid device.
delete According to claim 1,
The rotating projection is formed in a circular rod shape, the rotating projection is further tightened with a rotating bearing, the rotating bearing is further fitted with a guide rotating tube to be rotated, and the guide rotating tube is further fitted with a friction elastic tube. In the process of rotating the rotating driving panel, the guide rotation pipe is guided to the operation field hole to reduce friction by being rotated by the rotation bearing, and the friction elastic tube is rubbed with the operation field hole to prevent slipping and noise Locking device for a manhole having a locking function, characterized in that to prevent this from occurring.

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