KR101324994B1 - Manhole cover locking apparatus for manhole - Google Patents

Abstract

The present invention relates to a manhole with a manhole cover locking function and, specifically, to a manhole which comprises a manhole cover, a working pipe, a fixing unit, a fixing bolt, and an elastic spring. The manhole cover includes a cover frame and a working chamber facing each other. The cover frame has a catching protrusion on the inner circumference and a supporting slope at the bottom of the catching protrusion. The working chamber is wedged in the cover frame with a transfer groove at the bottom, a guide groove on the inner side of the transfer groove, and a joint groove on the inner side of the guide groove. The working pipe is arranged in the guide groove and is pierced by a working hole. The fixing unit is integrated with the end of the working pipe, is arranged on the transfer groove, and has a pressing head with a connection groove connected to the working pipe. The head of the fixing bolt is caught in the connection groove and a fixing nut on the joint groove. A shaft integrated with the head is engaged with the fixing nut through the working hole. The elastic spring is wedged in the shaft and is arranged on the guide groove to press the fixing unit towards the inner circumference of the cover frame. Through this, the present invention resolves problems about the detachment of the manhole cover from the cover frame caused by malfunction and hitches due to corrosion by maintaining watertightness and preventing the inside and the internal elastic spring from being corroded; prevents the manhole cover from being detached from the manhole frame when a vehicle runs over the manhole cover at high speed by using the elastic spring and the fixing unit on the manhole cover; and prevents safety accidents by eliminating frictional noise.

Description

Manhole cover locking apparatus for manhole}

The present invention relates to a manhole having a manhole cover locking function, and more particularly, the watertightness is maintained to prevent the internal and internal elastic springs from corroding, so that the manhole cover is pulled out of the lid frame due to malfunction or jamming caused by corrosion. Even if the vehicle running at high speed passes the manhole cover, the manhole cover is not moved or removed from the manhole frame by the elastic spring and the fixing unit installed in the manhole cover, and noise is not generated by friction. It relates to a manhole having a manhole cover locking function that prevents an accident.

In general, a manhole is a hole that allows people to enter and exit underground from a road surface. The manhole is divided into water, sewage, rainwater, sewage, and telecommunications according to the purpose, and is installed at regular intervals on the road. It is.

At the top of the manhole, a manhole cover formed of a casting is placed to allow entry and exit for maintenance of underground buried material. The traffic is rattled by the amount of impact transmitted when a vehicle traveling at high speed on the enclosed manhole cover passes. If the noise occurs or is severe, there is a problem that causes the safety accidents to escape to the outside.

Recently, in order to solve such a conventional problem, by installing a locking device on the manhole cover and fixing it to the manhole frame, to reduce the noise generated by the external impact and to prevent the manhole cover from falling off, by the elastic force of the elastic spring Manhole cover is configured to be fixed to the manhole frame has been developed a manhole that significantly reduces the occurrence of noise due to external impact.

The present invention was developed to meet the demands of the recent times, the object of the present invention is to prevent the corrosion of the internal and built-in elastic spring to maintain the watertight, the manhole cover lid frame due to malfunction or jamming caused by corrosion The problem is that the manhole cover is not moved or removed from the manhole frame by the elastic spring and fixing unit installed on the manhole cover even when the vehicle traveling at high speed passes the manhole cover. The purpose is to provide a manhole with a manhole cover locking function that prevents safety accidents.

The present invention is a locking jaw is formed along the inner periphery, and is fitted to the lid frame and the lid frame formed with a support inclined surface on the lower portion of the locking jaw, the bottom surface guide groove formed on the inner surface of the transfer groove and the transfer groove; The operating chamber provided with a coupling groove formed on the inner side of the guide groove is formed integrally with the manhole cover formed to face each other and the operation tube formed in the guide groove and the operation hole formed to penetrate through the end of the operation tube, The fixing unit is formed of a pressurizing head which is disposed in the conveying groove and the connecting groove is formed in communication with the operating tube, and the fixing nut disposed in the coupling groove and the connecting groove of the pressing head are disposed to hold the head and integrally with the head. The formed shaft is fitted to the fixing bolt and the shaft to be fastened to the fixing nut through the operation hole, the shaft is disposed in the guide groove to cover the fixing unit Characterized in that consists of an elastic spring for pressing the inner periphery direction of the mold.

In addition, the guide groove formed in the manhole cover is formed with a fastening groove in the inner circumference, the fastening groove is further fastened to the watertight pipe, the outer surface of the working tube to form a pair of watertight grooves, the watertight groove Milling is fastened so that watertightness is maintained between the watertight tube and the working tube, and an outer watertight pad is fitted to the shaft, and the outer watertight pad is disposed between the inner surface of the connecting groove and the head. Blocking the inflow of water into the pipe, the shaft is fitted with an inner watertight pad and is bonded to the end of the operating tube, characterized in that the water flow into the guide groove through the operating hole.

In addition, the evaporator is further installed on the manhole cover, the evaporator is a heating device installed in the operating tube, a sensor mounted on the watertight tube and the shaft, the lamp which is emitted by the signal of the sensor, Characterized in that the opening and closing door is installed in communication with the operating tube.

In addition, one side of the pressing head is formed with an upper pressing protrusion at an upper portion and a lower pressing protrusion at a lower portion, a curved guide portion is formed at an end of the lower pressing protrusion, and an upper side of the guide portion presses the support inclined surface. The pressure inclined surface is further formed.

In addition, a seating hole is formed in the upper pressing protrusion so that the end of the separation tool is introduced, and a groove is formed in one surface of the upper pressing protrusion, and the elastic spring is pressed by the elastic spring to press the inner circumferential portion. A pressurizing device comprising a pressurizing portion pressurizing the inner circumferential portion is further installed, and a pressing groove is formed on the pressing surface of the pressing portion so as to be inclined upwardly, and a pressing blade is inserted into the locking groove so that one end thereof protrudes outward.

The manhole having a manhole cover locking function of the present invention is to prevent the internal and internal elastic springs from being corroded by maintaining watertightness, so that the manhole cover does not fall out of the lid frame due to malfunction or jamming caused by corrosion. Even if the vehicle traveling at high speed passes through the manhole cover, the manhole cover is not moved or removed from the manhole frame by the elastic spring and the fixing unit installed in the manhole cover, and the noise is not generated by friction, thereby preventing safety accidents.

1 is a cross-sectional view showing a manhole having a manhole cover locking function according to the present invention.
2 is a view showing the installation process of the manhole having a manhole cover locking function according to the present invention.
3 is a partially enlarged view showing a manhole having a manhole cover locking function according to the present invention.
4 is a view showing another embodiment of a manhole having a manhole cover locking function according to the present invention.
5 is a view showing another embodiment of a manhole having a manhole cover locking function according to the present invention.

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

In addition, the following embodiments are not intended to limit the scope of the present invention, but merely as an example, and various embodiments may be implemented through the present invention.

1 is a cross-sectional view showing a manhole having a manhole cover locking function according to the present invention, Figure 2 is a view showing the installation process of the manhole having a manhole cover locking function according to the present invention, Figure 3 is a manhole cover according to the present invention Partial enlarged view of a manhole with locking function.

As shown in the drawings, the manhole 10 having a manhole cover locking function (named as a manhole for convenience of description) is a lid frame 20, a manhole cover 30, a fixing unit 40, and a fixing nut ( 50) and the fixing bolt 60, the elastic spring 70, the evaporator 80 and the pressing device (90).

The lid frame 20 is manufactured by casting and is detachably installed by anchor bolts on the upper part of the catchment port (not shown), and is made of a metal material, and a locking jaw 21 is formed along an inner circumference of the catching jaw. A support inclined surface 22 is formed at the lower side, and an annular support wing 22 is formed at the outer circumference. At this time, it is preferable that the curved curved portion 211 is formed at the upper edge of the locking jaw 21 so that the guide portion 423a to be described later slides.

The manhole cover 30 is manufactured by casting and is fitted to the lid frame 20, and the guide groove 312 and the guide formed on the inner surface of the transfer groove 311 and the transfer groove 311 at the bottom The operating chamber 31 provided with the coupling groove 313 formed on the inner side of the groove 312 is formed to face each other. The operating chamber 31 is formed integrally with the manhole cover 30, it is also possible to manufacture in a single piece to be fixed by welding to the bottom surface of the manhole cover 30.

The fixing unit 40 is to fix the manhole cover 30 to the lid frame 20, the fixing unit 40 is disposed in the guide groove 312 and the operating hole 411 is formed through The pressure head 42 is formed integrally at the end of the operating tube 41 and the operating tube 41, disposed in the transfer groove 311, the connection groove 421 is formed in communication with the operating tube 41. Is made of.

The fixing nut 50 is insert-cast into the coupling groove 313, the end of the fixing bolt is screwed, otherwise it is also possible to be fixed by inserting the welding groove 313 after welding. At this time, the fixing nut 50 is preferably disposed in the middle portion of the coupling groove 313 as shown in FIG.

The fixing bolt 60 is disposed so that the head 61 is fitted into the connection groove 421 of the pressure head 42, the shaft 62 is formed integrally with the head 61 is the operation hole ( 411 is fastened to the fixing nut 50.

The elastic spring 70 is fitted to the shaft 62, is disposed in the guide groove 312 to press the fixing unit 40 in the direction of the inner circumference of the lid frame 20.

At this time, the upper pressing protrusion 422 is formed on one side of the pressing head 42, the lower pressing protrusion 423 is formed on the lower side, the curved guide portion 423a at the end of the lower pressing protrusion 423 ) Is formed, and a pressure inclined surface 423a 'is further formed on the guide portion 423a to press the support inclined surface 22. In addition, a seating hole 422a is formed in the upper pressing protrusion 422 so that a separation tool is fitted.

That is, when the manhole cover 30 is inserted into the lid frame 20 and presses the manhole cover 30 downward, the fixing unit 40 is elastic so that the curved guide portion 423a is guided to the curved portion 211. The spring 70 is compressed and moved in the direction of the fixing nut 50, and the elastic part 70 is compressed while the guide part 423a is moved to the lower part of the latching jaw 21 by the continuous pressurization of the manhole cover 30. The pressure inclined surface (423a ') of the guide portion by the elasticity of the pressing jaw 21, while pressing the support inclined surface 22 is in contact with the surface of the manhole cover 30 can be easily fastened to the lid frame 20 without jamming. .

The guide portion 423a of the curve is guided along the support inclined surface 22 by the pressure of the elastic spring 70 and the pressure inclined surface 423a 'presses the support inclined surface 22 without the hook. The fixing unit 40 is fixed to the locking jaw 21.

Here, the guide groove 312 is formed in the manhole cover 30, the fastening groove 312a is formed on the inner circumference, the water tight tube 312b is further fastened to the fastening groove 312a, the operation pipe ( A pair of watertight grooves 412 are formed on an outer surface of the 41, and a watertight ring 413 is fastened to the watertight grooves 412 to maintain watertightness between the watertight tube 312b and the working tube 41. Done.

In addition, an outer watertight pad 621 is fitted to the shaft 62, and the outer watertight pad 621 is disposed between the inner surface of the connecting groove 421 and the head 61, so that the operation pipe 41 is disposed. ) To block water from flowing into the shaft 62, and the inner watertight pad 622 is fitted to the shaft 62, and is bonded to an end of the operating tube 41, and through the operating hole 411. 312) to block water from entering.

That is, watertightness is maintained by the watertight pipe 312b, the watertight ring 413, the inner watertight pad 622, and the outer watertight pad 621, so that the fixing unit 40 is operated during rain or rain. It is introduced into the groove 312 and the fastening groove 312a to corrode the elastic spring 70 and the inside to prevent malfunction.

Referring to the operation state of the manhole having a manhole cover locking function configured as described above, in the state in which the manhole cover 30 is disposed on the top of the lid frame 20, the user opens the manhole cover 30 to the lid frame. When pressed in the direction of (20), the fixing unit 40 is guided to the locking jaw 21 is arranged under the locking jaw 21 while compressing the elastic spring 70, the compression of the elastic spring 70 The fixing unit 40 is firmly locked while pressing the lower portion of the locking jaw 21 by elasticity, thereby preventing the manhole cover 30 from being pulled out or moved from the lid frame 20 by the passage or pedestrian of the vehicle. Done.

The manhole cover 30 fastened as described above is fixed to the seat hole 422a through the fastening hole 33 formed in the manhole cover after the opening and closing bar (not shown) as a separation tool. The manhole cover 30 is separated from the lid frame 20 while the unit 40 is moved in the fixing nut 50 direction.

4 is a view showing another embodiment of a manhole having a manhole cover locking function according to the present invention.

Referring to Figure 4, the manhole cover 30 is further provided with an evaporator 80, the evaporator 80 is made of a pad with a plurality of heating wires are fused or screwed to the operating tube 41 A heating device 81 to be fastened, a detection sensor 82 installed at the watertight tube 41 and the shaft 62, a lamp 83 emitted by a signal of the detection sensor 82, and the It consists of an opening and closing door 84 is installed in communication with the operating tube (41). The opening and closing door 84 is a stopper screwed to maintain the interference fit or watertight in the discharge hole 32 formed in the manhole cover 30 in communication with the guide groove 312. The heating device is driven by receiving power from the outside.

That is, when water flows into the guide groove 312, the sensor 82 detects this, transmits the signal to the heating device 81, generates heat, and transmits the signal to the lamp 83 to emit light. After the operator checks the light of the lamp 83, the opening and closing door 84 is opened to discharge the evaporated water vapor from the outside, and when the water is removed to terminate the signal of the sensor 82, the heating device and the lamp The signal is transmitted to the operator, and the operator who confirms the unlit lamp closes the door.

Alternatively, by installing a wireless transmission device in the manhole cover 30, and receives the signal from the sensor 82 and transmits the signal to the user's terminal or transmission device to confirm the received signal after the user opens and closes the door It is also possible to open the 84.

Alternatively, by opening or closing the opening and closing door 84 by the cylinder, it is also possible to operate the cylinder by the signal of the sensor.

5 is a view showing another embodiment of a manhole having a manhole cover locking function according to the present invention.

Referring to FIG. 5, a seating hole 422a is formed in the upper pressing protrusion 422 so that an end portion of the separation tool is inserted therein, and a groove portion 422a 'is formed on one surface of the upper pressing protrusion 422. 422a 'is further provided with a pressing device 90 made up of a pressing spring 91 to pressurize the inner peripheral portion and a pressing portion 92 for pressing the inner peripheral portion by elasticity of the pressing spring 91, A fastening groove 922 is formed to be inclined upwardly on the pressing surface 912 of the pressing unit 92, and a pressing blade 923 is fitted to one end of the pressing groove 922 to protrude outward.

That is, by pressing the inner peripheral portion with the pressing portion 92 of the pressing device 90 together with the pressing of the fixing unit 40, the manhole cover 30 is closed by the external force or the passage of the vehicle lid 20 It is possible to prevent the movement or friction noise from being generated), and by pressing the pressing blade in the fastening groove, it is easy to replace the pressing blade by friction, thereby reducing the maintenance cost.

10: manhole 20: lid frame
30: Manhole cover 40: Fixing unit
50: fixing nut 60: fixing bolt
70: elastic spring 80: evaporation unit
90: pressurizing device 21: locking jaw
211: curved portion 22: support slope
31: operating room 311: transfer groove
312: guide groove 312a: fastening groove
312b: Watertight tube 313: Coupling groove
32: discharge hole 33: fastening hole
41: operating tube 411: operating hole
412: Watertight groove 413: Watertight ring
42: pressure head 421: connecting groove
422: upper pressing protrusion 422a: seating hole
422a ': Groove 423: Lower pressure protrusion
423a: guide portion 423a ': pressurized slope
61: head 62: shaft
621: outer watertight pad 622: inner watertight pad
81: heating device 82: detection sensor
83: lamp 84: opening and closing door
91: pressure spring 92: pressure part
921: Pressing surface 922: Tightening groove
923 pressurized blade

Claims (5)

A locking jaw is formed along an inner circumference, and is fitted to the lid frame and the lid frame having a support inclined surface at a lower portion of the locking jaw, and a guide groove and a guide groove formed on an inner surface of the transport groove and the transport groove on a bottom surface thereof. The operating chamber is provided with a coupling groove formed on the inner side of the manhole cover formed to face each other and the operating tube is formed integrally with the end of the operating tube and the operation tube formed in the operating groove to be penetrated through the guide groove, A fixed unit formed of a pressurizing head having a connection groove formed in communication with the operation tube, and a fixing nut disposed at the coupling groove and a connection groove of the pressure head, the head being engaged with the shaft formed integrally with the head. It is fitted to the fixing bolt and the shaft which is fastened to the fixing nut by passing through the operation hole, is disposed in the guide groove and the fixing unit to the inner circumference of the lid frame In the manhole having a manhole cover locking function made of an elastic spring pressed in the edge direction,
The guide groove formed in the manhole cover is formed with a fastening groove on the inner circumference, and further fastening the watertight tube to the fastening groove,
A pair of watertight grooves are formed on an outer surface of the working tube, and a watertight ring is fastened to the watertight groove so that watertightness is maintained between the watertight tube and the working tube,
The outer watertight pad is fitted to the shaft and the outer watertight pad is disposed between the inner surface of the connecting groove and the head to block water from flowing into the working pipe.
The shaft is fitted with an inner watertight pad is attached to the end of the operating tube, the manhole having a manhole cover locking function, characterized in that to block water from flowing into the guide groove through the operating hole.
delete The method of claim 1,
The manhole cover is further provided with an evaporation unit,
The heating unit and the evaporation unit is installed in the operation pipe;
A sensor installed on the watertight tube and the shaft;
A lamp which is emitted by a signal of the sensor,
Manhole cover with a manhole cover, characterized in that the opening and closing door is installed in communication with the operating tube.
The method of claim 1,
An upper pressing protrusion is formed at an upper portion of the pressing head and a lower pressing protrusion is formed at a lower portion of the pressing head, and a curved guide portion is formed at an end portion of the lower pressing protrusion, and a pressing slope surface pressurizes the support inclined surface at an upper side of the guide portion. The manhole with a manhole cover lock, characterized in that further formed.
5. The method of claim 4,
A seating hole is formed in the upper pressing protrusion so that an end of the separation tool is introduced, and a groove is formed in one surface of the upper pressing protrusion, and a pressure spring and an elastic force of the pressing spring press the inner circumferential portion to press the groove. A pressurizing device comprising a pressurizing portion for pressurizing the peripheral portion is further provided, and the pressing surface of the pressurizing portion is formed with a fastening groove formed to be inclined upwardly, and a fastening blade is inserted into the fastening groove so that one end protrudes outward. Manhole with function.

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