KR100717256B1 - Manhole assembly with locking apparatus - Google Patents

Abstract

The present invention is provided with a manhole frame, a manhole cover, a locking pin and a locking lever to improve the structural stability and durability of the component performing the locking function, even if the wear occurs to some extent to minimize the occurrence of noise as well as the manhole cover Provided is a manhole assembly having a locking device that can perform locking and releasing operations easily and smoothly. Here, the manhole frame is formed with an opening in the center, and is constructed in the ground around the manhole. The manhole cover is formed to be inserted into and coupled to the opening of the manhole frame, thereby opening and closing the opening of the manhole frame, and a recess penetrating up and down is formed on the side surface. The locking pin is installed to protrude on the inner surface of the manhole frame so that when the manhole cover is coupled to the manhole frame is in a position corresponding to the recess of the manhole cover. The locking lever is pivotally coupled in the recess of the manhole cover so that when the manhole cover is engaged with the manhole frame, it is engaged with the locking pin. The manhole assembly having a locking device according to the present invention is coupled to the manhole cover in the opening of the manhole frame, so that the locking lever is locked to the locking pin by rotating the locking lever so that the manhole cover is locked to the manhole frame.

Description

Manhole assembly with locking device {MANHOLE ASSEMBLY WITH LOCKING APPARATUS}

1 is a view for explaining a manhole assembly having a locking device according to an embodiment of the present invention;

2 is a view for explaining in detail the locking device according to the present invention;

3a and 3b are views for explaining in detail the operating state of the locking device according to the invention;

4 is a view showing a state in which a manhole cover is coupled to a manhole frame in a manhole assembly having a locking device according to a preferred embodiment of the present invention;

5A and 5B are views for explaining a locking surface and a locking pin of a pocket according to a modified embodiment of the present invention;

6 and 7 are views for explaining a manhole assembly having a locking device according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10, 10 ': manhole assembly 20: manhole frame

22: side wall border 24: opening

26: support frame 28: reinforcement border

30: manhole cover 32: (manhole cover) upper surface

34: (manhole cover) side 36: recess

38: (manhole cover) hole 40: locking pin

42: (locking pin) outer peripheral surface 50: locking lever

52: pocket 54: (pocket) entrance

56: locking surface 58: center of rotation, hall

60: handle 62: (handle) upper surface

64: (handle) 70: bolt

72: nut 80: handle seat

90: coupling protrusion 92: coupling groove

The present invention relates to a manhole assembly having a locking device, and more particularly, a manhole cover that opens and closes the opening of a manhole frame in a manhole assembly installed for inspection of the manhole so that the lock is firmly fixed without being separated by a simple operation. A manhole assembly with a device is provided.

In general, a manhole is provided in the basement, which is equipped with utility facilities such as communication lines, power transmission lines, and various pipes, and water and sewage pipes. Such manholes are mainly installed on roads or sidewalks where they do not interfere with structures such as buildings. do.

In addition, the manhole as described above is always in a sealed state with the ground, so that the maintenance of the underground for the installation of the manhole installed in the manhole, a check hole for the worker's access is formed at a certain distance, and the manhole has a structure that can be opened and closed The cover is installed.

At this time, since the manhole cover is mainly installed on the road or sidewalk, the external force is applied during the movement of the vehicle or the pedestrian's walking. Therefore, the manhole cover is easily detached or severe noise is generated. Therefore, the weight of the metal is prevented from being easily detached by such external impact. It is formed of a sieve, and in recent years, a method of fastening the manhole cover by fastening the manhole cover on the manhole frame using a locking bolt to prevent the manhole cover from being separated.

However, when fixing the manhole cover by the locking bolt as described above, the locking bolt is fixed due to corrosion or foreign matters due to prolonged use, the opening of the manhole cover is impossible or the thread of the locking bolt is worn or damaged by repeated impact There was a problem that can not perform the lock function properly.

Accordingly, in order to solve the above problems, as shown in the Republic of Korea Patent Publication No. 10-0466343, the locking knob rotated in conjunction with the up and down movement of the casting handle is installed 'casting handle fastening' installed at the bottom of the manhole cover Type locking manhole cover "has been proposed to facilitate the locking and releasing function of the manhole cover, but the conventional casting handle fastening type locking manhole cover, such as the structure of the lock bundle is complicated to increase the production cost, assembly There is a problem that takes a lot of assembly time at the time, as well as a large number of components and a relatively large number of failure factors, there is a problem that the noise caused by corrosion and wear of the parts during long-term use.

And as shown in Korean Patent Laid-Open Publication No. 10-2004-0034347, the locking mechanism can be rotated through a locking shaft through a rotating hole formed through the rim of the manhole cover so that the manhole cover can be seated and locked in the manhole frame. The manhole cover having a locking function is provided, which has a ring insertion groove in which a corresponding locking hole is rotated and locked to the inner part of the manhole frame. There is an effect that can be easily opened and closed, but the opening and closing operation is very inconvenient to operate a lock when the manhole cover is opened and closed, very inconvenient, and fixed like a lock by the impact repeatedly applied to the manhole cover Since element breakage occurs frequently, manhole function cannot be performed smoothly. There is a problem of noise generated in accordance with.

The present invention has been made to solve the conventional problems as described above, and the structural stability and durability of the component to perform the locking function is improved, even if the wear to some extent not only the occurrence of noise is minimized but also of the manhole cover It is an object of the present invention to provide a manhole assembly having a new type of locking device that enables simple and smooth locking and releasing operations.

In particular, the present invention does not need to use a separate tool for locking or releasing the locking device as in the related art, and is configured in the form of a lever so that the locking and releasing of the manhole cover can be easily performed while maintaining a new type of locking device. It is an object to provide a manhole assembly having a.

According to a feature of the present invention for achieving the above object, the present invention is an opening is formed in the center, the manhole frame is constructed on the ground around the manhole; A manhole cover formed to be inserted into and coupled to the opening of the manhole frame to open and close the opening of the manhole frame, and having a recess penetrating up and down on a side thereof; A locking pin protruding from an inner surface of the manhole frame such that the manhole cover is coupled to the manhole frame so as to correspond to a recess of the manhole cover; And a locking lever pivotally coupled to the recess of the manhole cover, the locking lever being rotated when the manhole cover is coupled to the manhole frame to the locking pin to couple the manhole cover to the opening of the manhole frame. Thereafter, the locking lever is rotated so that the locking lever is locked to the locking pin so that the manhole cover is locked to the manhole frame.

In this manhole assembly having a locking device according to the present invention, the locking lever has an inlet formed on one side, and when the locking lever has a constant radius and is coupled to the locking pin, the locking lever is in close contact with the outer circumferential surface of the locking pin. Pocket and a locking surface is formed in the rotational direction, and is formed by protruding from the other side of the pocket so that the manhole cover is coupled to the manhole frame to protrude to the top of the manhole cover to rotate from the outside, the locking pin When coupled to the upper surface of the manhole cover may be provided with a handle is formed so as to have the same height.

In the manhole assembly having a locking device according to the present invention, the locking pin is formed by the outer peripheral surface is inclined to reduce the outer diameter in the protruding direction, the locking surface of the pocket to correspond to the outer peripheral surface of the locking pin of the locking pin Since the locking pin is formed to be inclined in the direction, the locking pin may be coupled to the locking surface of the pocket in the form of a wedge to secure the locking lever.

The manhole assembly having a locking device according to the present invention is formed to protrude from the side of the manhole cover to the recess, when the manhole cover is coupled to the manhole frame and locked to support the lower surface of the handle of the locking lever It may further include a handle seating portion formed to.

In the manhole assembly having a locking device according to the present invention, the manhole frame further includes a side facing the position where the locking lever is installed and a coupling protrusion protruding inward from the upper side of the opening, the manhole cover The coupling hole further comprises a coupling groove formed in a position corresponding to the coupling projection so that the coupling projection is seated on the upper portion when coupled to the manhole frame, the manhole cover in the direction in which the coupling projection is formed when coupled to the manhole frame By inserting at an angle, one side may be fixed by the coupling protrusion, and the other side may be locked to the manhole frame by the locking pin and the locking lever.

The manhole assembly having a locking device according to the present invention is characterized in that the locking device for locking the manhole frame and the manhole cover can be configured with a minimum number of parts. That is, the present invention enables to implement the locking device without compromising the function of the conventional manhole frame and manhole cover. For example, in the prior art, a large number of modifications must be made to a conventional manhole frame and a manhole cover to implement a locking device, and a large number of additional configurations are required, but the present invention adds a configuration of a locking pin and a locking lever, and installs them. In order to change the structure of the manhole cover (including the structure of the manhole frame in the case of another embodiment of the present invention described later (FIGS. 6 and 7)).

Therefore, since the configuration and operation structure of the locking device is the simplest, it is possible to maintain structural rigidity and stability even in a poor manhole due to various corrosive gases. In addition, such a technical feature can be expected to have an effect that the locking lever and the locking pin of the fixed state is firmly maintained even if the parts are corroded and worn to some extent using the locking device for a long time. In addition, such technical features can be expected to maintain the effect of easy maintenance even when the lock or manhole cover is damaged or damaged.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 1 to 7, and like reference numerals refer to like elements in FIGS. 1 to 7. Meanwhile, in each drawing, a manufacturing form of a manhole assembly generally consisting of a manhole cover and a manhole frame, its construction, and an illustration and detailed description thereof, are briefly or omitted, and are shown based on parts related to the present invention.

1 is a view for explaining a manhole assembly having a locking device according to a preferred embodiment of the present invention, Figure 2 is a view for explaining in detail the locking device according to the present invention, Figures 3a and 3b to the present invention Figure 4 is a view for explaining the operation of the locking device in detail, Figure 4 is a view showing a manhole cover coupled to the manhole frame in the manhole assembly having a locking device according to an embodiment of the present invention.

1 to 4, the manhole assembly 10 having a locking device according to an exemplary embodiment of the present invention includes a manhole frame 20, a manhole cover 30, a locking pin 40, and a locking lever 50. It is provided with.

In the present embodiment, the manhole frame 20 and the manhole cover 30 have a structure similar to that of the manhole assembly which is generally applied, except for the characteristic technical configuration of the present invention, and has the same function. That is, the manhole frame 20 has an opening 24 formed at the center thereof, and a side wall edge 22 is formed around the opening 24, and an inner side of the side wall edge 22, and a support edge around the lower side of the opening 24. 26 is formed to have a structure for supporting the manhole cover 30. In addition, a reinforcing edge 28 is formed around the outer lower side of the side wall edge 22 to be positioned in the reinforcing ground such as concrete when constructed on the ground around the manhole.

Meanwhile, the manhole cover 30 is formed to be inserted into and coupled to the opening 24 of the manhole frame 20, thereby opening and closing the opening 24 of the manhole frame 20. The manhole cover 30 is formed such that the dimension of the side 34 is smaller than the side wall edge 22 of the manhole frame 20, and the lower side of the side 34 is supported when inserted into the opening 24. Supported by the edge 26, the upper surface 32 is formed to have the same height as the side wall edge 22. At this time, the manhole cover 30, as shown in the embodiment shown in Figures 6 and 7, the hole 38 is formed to have a form to allow the water to flow inward. Of course, in addition to such a configuration, a configuration generally applied to the manhole frame and the manhole cover may be equally applicable to the manhole assembly of the present invention.

Meanwhile, in the preferred embodiment of the present invention, a manhole assembly having a rectangular shape is exemplified, but may be applied to a manhole assembly having a circular shape. Of course, in such a case, the components such as the recess 36 and the locking lever 50 formed in the manhole cover 30 are formed to have a predetermined curvature in accordance with a circle, such as the embodiment described below, the locking lever 50 ) And a design change will be required to satisfy the coupling relationship of the locking pin 40. However, such a degree of deformation is under the technical spirit of the present invention.

In the manhole assembly 10 having the locking device according to the present invention, the manhole cover 30 is characterized in that a recess 36 penetrating up and down is formed on the side surface 34. Such a recess 36 is a space in which the locking lever 50 to be described below is coupled and operated. After the coupling of the manhole cover 30 to the manhole frame 20 without additional configuration, the locking lever 50 is rotated. By fixing to the locking pin 40 so that the manhole cover 30 is fixed to the manhole frame 20.

The manhole assembly 10 according to the present invention includes a locking pin 40 and a locking lever 50. The locking pin 40 protrudes from the inner surface of the manhole frame 20 so that the manhole cover 30 is in a position corresponding to the recess 36 of the manhole cover 30 when the manhole cover 30 is coupled to the manhole frame 20. do. The locking pin 40 is basically formed integrally with the manhole frame 20, but if necessary, it may have a structure that is separately formed by coupling to the manhole frame 20. Of course, when the locking pin 40 is molded separately and coupled to the manhole frame 20, screw coupling or pin coupling may be applied, or if possible, welding or the like may also be applied. At this time, the locking pin 40 proposed in this embodiment is the most simplified form. In other words, it is proposed in the form of a pin for manufacturing without any difficulty in manufacturing, minimizing damage during corrosion, and for convenience of future maintenance. Therefore, a more complicated form than the form proposed in this embodiment, for example, a semi-circular structure that can be coupled by the rotation of the locking lever 50 to be described later (normally lever-type locking structure can be considered in the window) can be applied. .

The locking lever 50 is rotatably coupled in the recess 36 of the manhole cover 30. The locking lever 50 is rotated when the manhole cover 30 is coupled to the manhole frame 20 is coupled to the locking pin 40. The locking structure of the locking lever 50 and the locking pin 40 is an application of a lever-type locking structure that is usually used for windows. Therefore, after the manhole cover 30 is coupled to the manhole frame 20 under the technical concept of the present invention, the structure for coupling the locking lever 50 to the locking pin 40 may be variously configured.

Meanwhile, referring to FIG. 2 in detail, the locking lever 50 of the present embodiment includes a pocket 52 and a handle 60. Here, the pocket 52 has an inlet 54 formed at one side thereof, and has a rotational center and a rotational direction from the inlet 54 so as to be in close contact with the outer circumferential surface of the locking pin 40 when coupled to the locking pin 40. Thus, the locking surface 56 is formed. And the handle 60 is formed by protruding from the other side of the pocket 52 so that the manhole cover 30 is coupled to the manhole frame 20 to protrude to the top of the manhole cover 30 to be rotated from the outside, When coupled to the locking pin 40, the upper surface 62 is formed to have the same height as the upper surface 32 of the manhole cover 30.

The locking lever 50 is positioned on the side 34 of the manhole cover 30, that is, the recess 36, by the bolt 70 and the nut 72, and is provided on the side 34 of the manhole cover 30. And are configured to hinge on the recess 36. At this time, the rotation center 58 of the locking lever 50 in this embodiment is a hole 58 formed in the pocket 58 so that the bolt 70 passes. Therefore, the locking lever 50 according to the present embodiment has a rotation radius around the hole 58 to which the bolt 70 is coupled. For this reason, in the present invention, the locking surface 56 of the pocket 58 is formed to have a constant radius with respect to the rotation center 58, the locking pin 40 has a circular cross section, and the manhole cover 30 has a manhole frame. When coupled to 20, the outer surface of the locking surface 56 and the locking pin 40 should be set to be slidable.

Meanwhile, unlike the embodiment, the recess 36 is formed on the inner side of the manhole cover 30 instead of the side 34, but the locking lever 50 is installed under the technical idea of the present invention. In this case, the locking pin Since the additional configuration 40 is coupled to the manhole frame 20, there is a problem that the structural complexity.

Through this technical configuration, the manhole assembly 10 having the locking device according to the present embodiment is coupled to the manhole cover 30 to the opening 24 of the manhole frame 20, and then rotates the locking lever 50. By locking the locking lever 50 to the locking pin 40, the manhole cover 30 is locked to the manhole frame 20.

Referring back to Figures 1, 3A to 4, the installation of the manhole assembly 10 having a locking device according to the present embodiment, the manhole cover 30 in the state in which the manhole frame 20 is installed in the installation position of the manhole After inserting and engaging the opening 24 of the frame 10 (state as shown in FIG. 4), the locking lever 50 is rotated to be fixed to the locking pin 40. In more detail, such a process will be described in detail. First, as shown in FIG. 1, the locking lever 50, which is prepared to have the configuration as described above, is formed in the recess 36 of the manhole cover 30 with the bolt 70. Engage with a nut 72 (example of two left edges in FIG. 1). Next, as described above, when the construction of the manhole frame 20 is completed in the construction site, the handle 60 of the locking lever 50 is erected upwards (upward in the upper right corner in Figure 1), The manhole cover 30 is inserted into the opening 24 of the manhole frame 20 to be coupled. By this process, the locking lever 50 has a position as shown in FIG. 3A. That is, the locking pin 40 is at the inlet 54 of the pocket 52 of the locking lever 50. Rotating the handle 60 of the locking lever 50 which is upright in such a state (the example of the upper right corner in FIG. 1 and FIG. 4) is rotated downward, the locking lever 50 is shown in FIG. 3B. As described above, the upper surface 62 is fixed by the locking pin 40 to form a flat surface with the upper surface 32 of the manhole cover 30.

By this action, the manhole assembly 10 having the locking device according to the present embodiment is the manhole cover 30 is locked to the manhole frame 20. At this time, the installation position of the locking device in the present embodiment is configured in four corners, but this is to present the most preferable form in the square-shaped manhole assembly, the installation position or the number can be selected as needed. And, as in another embodiment of the present invention to be described later it is possible to configure the locking device by mixing with other locking or fixing structure.

5a and 5b are views for explaining the locking surface and the locking pin of the pocket according to a modified embodiment of the present invention, Figure 5a is a main part showing a state before the locking lever 50 and the locking pin 40 is coupled 5B is a cross-sectional view of an essential part showing a state after coupling the locking lever 50 and the locking pin 40.

5A and 5B, according to the present modified embodiment, the locking lever 50 is more effectively engaged by allowing the locking pin 40 to be coupled to the locking surface 56 of the pocket 52 in the form of a wedge. To be fixed. In other words, according to the present modification, the locking pin 40 is formed by inclining the outer circumferential surface 42 so that the outer diameter is reduced in the protruding direction. The locking surface 56 of the pocket 52 is inclined in the direction of the locking pin 40 to correspond to the outer circumferential surface 42 of the locking pin 40. Such a technical configuration is expected to have a known function of correcting the tolerance and increasing the locking force, as compared with the case in which the wedge fitting is usually aligned in parallel. Therefore, the configuration of the locking pin 40 and the locking surface 56, such as the locking pin 40 and the locking lever 50 through the wedge fit even with a certain processing tolerance or assembly tolerance even more with the function to correct Maintain an effective locking force.

6 and 7 are views for explaining a manhole assembly having a locking device according to another embodiment of the present invention.

6 and 7, the manhole assembly 10 ′ having the locking device according to the present embodiment applies a locking structure by the locking lever 50 to one side and a coupling protrusion on the other side, unlike the above-described example. 90 shows an example of applying a locking structure consisting of a coupling groove (92).

In the manhole assembly 10 ′ having the locking device according to the embodiment, a coupling protrusion 90 is added to the manhole frame 20, and a coupling groove 92 is added to the manhole cover 30. At this time, the coupling protrusion 90 is formed to protrude inward from the side and the upper side of the opening portion 24 and the position where the locking lever 50 is installed. In addition, the coupling groove 92 is formed at a position corresponding to the coupling protrusion 90 so that the coupling protrusion 90 is seated thereon when the manhole cover 30 is coupled to the manhole frame 20.

Through this configuration, as shown in FIG. 7, the manhole cover 30 is inserted by tilting in the direction in which the coupling protrusion 90 is formed when coupled to the manhole frame 20, thereby fixing one side by the coupling protrusion 90. The other side is locked to the manhole frame 20 by the locking pin 40 and the locking lever 50.

At this time, the position of the coupling protrusion 90 and the coupling groove 92 has a limit that is installed on the side opposite to the locking lever 50, the position and number is not limited. For example, although the coupling protrusion 90 and the coupling groove 92 are proposed as the most stable position for fixing the manhole cover 30 in the present embodiment, the position and the number thereof may be adjusted as necessary.

Meanwhile, referring again to FIGS. 3B, 6, and 7, the manhole assembly 10 ′ having the locking device according to the present embodiment is characterized in that the handle seating portion 80 is added. Such a handle seating portion 80 is formed to protrude from the side face 34 of the manhole cover 30 onto the recess 36. And the handle seating portion 80 is formed to support the lower surface 64 of the handle 60 of the locking lever 50 when the manhole cover 30 is coupled to the manhole frame 20 and locked. The handle seating part 80 is a locking lever (e.g., a shock generated by driving of a vehicle, a pedestrian traffic, etc.) after the manhole assembly 10 'is constructed by removing a gap generated at the lower side of the handle 60. 50) or to prevent the locking pin 40 from being broken effectively.

As described above, the manhole assembly having a locking device according to a preferred embodiment of the present invention has been shown in accordance with the above description and drawings, but this is merely described for example and various within the scope without departing from the spirit of the present invention. It will be understood by those skilled in the art that variations and modifications are possible.

According to the manhole assembly having a locking device according to the present invention, since the structure of the locking device for fixing the manhole cover to the manhole frame consists of a locking lever and a locking pin to which the locking lever is locked, structural rigidity and stability are achieved. High and simple locking structure, it has the effect of improving the stability and durability of the operation. In addition, even if the parts are corroded and worn out by using the locking device for a long time, the locked state of the locking lever and the locking pin is firmly maintained, thereby minimizing noise generation. In addition, it is possible to fix and release the manhole cover by a simple pivoting operation of the locking lever, thereby improving convenience in use, thereby improving the efficiency of manhole maintenance work and facilitating maintenance of the manhole cover.

Claims (5)

An opening is formed in the center, and a manhole frame constructed in the ground around the manhole; A manhole cover formed to be inserted into and coupled to the opening of the manhole frame to open and close the opening of the manhole frame, and having a recess penetrating up and down on a side thereof; A locking pin protruding from an inner surface of the manhole frame such that the manhole cover is coupled to the manhole frame so as to correspond to a recess of the manhole cover; A locking lever pivotally coupled to the recess of the manhole cover to pivot when the manhole cover is coupled to the manhole frame to engage the locking pin to couple the manhole cover to the opening of the manhole frame. After that, the manhole assembly having a locking device, characterized in that the manhole cover is locked to the manhole frame by rotating the locking lever so that the locking lever is locked to the locking pin. The method of claim 1, The locking lever has an inlet is formed on one side, a pocket having a locking surface in the rotational direction from the inlet to be in close contact with the outer circumferential surface of the locking pin when coupled to the locking pin while having a constant radius and the center of rotation; Since the manhole cover is formed to protrude from the other side of the pocket and then joined to the manhole frame to protrude to the upper portion of the manhole cover to be rotated from the outside, the same as the upper surface of the manhole cover when coupled to the locking pin Manhole assembly having a locking device characterized in that it comprises a handle having an upper surface to have a height. The method of claim 2, The locking pin is formed by the inclined outer peripheral surface to reduce the outer diameter in the protruding direction, the locking surface of the pocket is formed to be inclined in the direction of the locking pin to correspond to the outer peripheral surface of the locking pin, so that the locking pin is the pocket Manhole assembly having a locking device characterized in that the locking lever is coupled to the locking surface in the form of a wedge fit so that the locking lever is fixed. The method of claim 2 or 3, It is formed to protrude from the side of the manhole cover to the recess, characterized in that it further comprises a handle seating portion formed to support the lower surface of the handle of the locking lever when the manhole cover is coupled to the manhole frame and locked Manhole assembly with locking device. The method of claim 4, wherein The manhole frame further includes a coupling protrusion which protrudes inward from an upper side of the opening and a side facing the position where the locking lever is installed, The manhole cover further includes a coupling groove formed at a position corresponding to the coupling protrusion so that the coupling protrusion is seated on the upper part when the manhole cover is coupled to the manhole frame, and the manhole cover is coupled to the manhole frame. One side is fixed by the engaging projection by being inserted inclined in the formed direction, the other side is a manhole assembly having a locking device to be locked to the manhole frame by the locking pin and the locking lever.

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