KR102266774B1 - Manhole with elastic locking and locking structure - Google Patents

Abstract

The present invention relates to a manhole with an elastic locking and engagement locking structure. More specifically, the present invention provides a manhole including: a manhole frame in which a catching step and a seating recess are formed on the inner surface; and a manhole lid inserted in the manhole frame. An elastic locking device is arranged in the manhole lid. The elastic locking device includes: an actuating housing in which an actuator is formed and a coupling hole is formed at one side; an actuating head disposed within the actuating housing and having a front surface on which a seating protrusion is formed so as to be inserted into the seating recess and a rear surface on which an actuating shaft is formed so as to penetrate the coupling hole; an elastic spring inserted around the actuating shaft; and a fixing nut coupled to an end portion of the actuating shaft. Therefore, the elastic locking device is arranged in the manhole such that the manhole lid is fixed to the manhole frame by elasticity to prevent separation or movement of the manhole lid due to an external force or a vibration and to prevent frictional noises. In addition, the engagement locking device is further arranged to fix the manhole lid by means of an engagement structure, thereby performing a dual locking operation to enhance locking efficiency and to prevent separation due to an external force or a vibration.

Description

Manhole with elastic locking and locking structure }

The present invention relates to a manhole having an elastic locking and interlocking locking structure, and more particularly, by providing an elastic locking device in the manhole, the manhole cover is fixed to the manhole frame by elasticity, and the manhole cover is separated by external force or vibration In addition to preventing friction and noise, a locking device is further provided to fix the manhole cover by means of a locking structure, so that the locking efficiency is improved by double locking and separation by external force or vibration It relates to a manhole having an elastic locking and interlocking locking structure to prevent it.

In general, a manhole is a hole made for people to enter and exit from the road surface underground, and it is divided into water and sewerage, rainwater, sewage, and telecommunications, depending on the use, and is installed at regular intervals on the road. has been

At the top of such a manhole, a manhole cover formed of a casting is placed so that it can enter and exit for maintenance of underground facilities, and when a vehicle traveling at high speed passes over the placed manhole cover, the traffic is rattled due to the amount of shock transmitted. If the noise is generated or severe, it will be separated from the outside and cause a safety accident.

Recently, in order to solve this conventional problem, as in Korean Patent Application No. 10-2012-0045919, a locking device is installed on the manhole cover and fixed to the cover frame, thereby reducing noise caused by external impact and reducing the manhole. Disclosed is a manhole that prevents the lid from being separated and that the manhole cover is fixed to the lid frame by the elastic force of the elastic spring, thereby significantly reducing the generation of noise due to external impact.

However, since the conventional locking device is caught in the lid frame and the pressing head is formed in a rectangular block or bar shape, the pressing and engaging area is reduced and friction noise is generated by external force, and a single pressing structure by the head There is always a problem that the head moves or falls out by external force.

The above-described invention refers to the background of the technical field to which the present invention pertains, and does not mean the prior art.

Registered Patent No. 1238164

The present invention has been devised to solve the problems of the prior art, and an object of the present invention is to provide an elastic locking device in the manhole, fix the manhole cover to the manhole frame by elasticity, and the manhole cover by external force or vibration This prevents separation or movement, prevents friction noise, and further provides a locking device to fix the manhole cover by means of a locking structure, so that the locking efficiency is improved by double locking and separation by external force or vibration An object of the present invention is to provide a manhole having an elastic locking structure and an interlocking locking structure to prevent it from happening.

The present invention consists of a manhole frame having a locking protrusion and a seating groove formed on the inner surface, and a manhole cover fitted to the manhole frame, the manhole cover is provided with an elastic locking device, and the elastic locking device has an operating tool and one side A working housing having a fastening hole formed therein, an actuating head disposed inside the working housing, a seating protrusion is formed on the front surface to be fitted into the seating groove, and an actuating shaft having an operating shaft penetrating through the fastening hole on the rear surface, and the actuating shaft It is characterized in that it consists of an elastic spring fitted to the and a fixing nut fastened to the end of the operation shaft.

In addition, the manhole cover is further provided with a locking device, and the locking device includes an operation hole formed in the manhole cover, a lock rotation shaft fitted into the operation hole, and a support panel formed on the lock rotation shaft; , A locking panel formed under the locking rotation shaft and caught under the locking jaw by rotation of the locking rotation shaft, and a guide panel disposed between the support panel and the locking panel and formed with a guide protrusion on the bottom surface. characterized.

In addition, the locking rotation shaft is characterized in that the pressing elastic projection is further formed on the outer surface, and the locking jaw formed in the manhole frame is characterized in that the fastening groove is further formed so that the pressing elastic projection is introduced.

In addition, the locking panel is further provided with a pressing elastic fixing means at the end to press the inner surface of the manhole frame by elasticity, the pressing elastic fixing means having one end connected to and fixed to the end of the locking panel. A coil spring, a fixing pipe fitted to the elastic coil spring and having one end connected to the end of the locking panel to be fixed, a roller bracket connected to the other end of the pressure elastic coil spring and fixed, and the roller bracket are rotatably fastened It is characterized in that it consists of a guide roller and an elastic pressure tube fitted to the guide roller.

In addition, a fitting elastic support means is further provided in the seating groove of the manhole frame to support the seating projection of the operation head by elasticity, and the fitting elastic support means includes an operation groove formed in the seating groove, and the operation A support coil spring fitted into the groove and fixed with one end connected, a support cap connected to and fixed to the other end of the support coil spring and fitted with a seating protrusion of the operation head, and fixed by being fitted into the support cap, It is characterized in that it consists of an elastic cushioning cap that supports the seating projection of the operation head fitted to the support cap, roller grooves formed on upper and lower surfaces of the support cap, and a guide roller rotatably fastened to the roller groove. .

The present invention provides an elastic locking device in the manhole for the manhole having an elastic locking and interlocking locking structure, fixing the manhole cover to the manhole frame by elasticity, preventing the manhole cover from being separated or moving by external force or vibration, and friction noise In addition, there is an effect of further providing an interlocking locking device to fix the manhole cover by the interlocking structure, thereby improving the locking efficiency by double locking and preventing separation by external force or vibration.

1 is a cross-sectional view showing a manhole having an elastic locking and interlocking locking structure according to the present invention.
2 is a cross-sectional view showing an elastic locking device for a manhole having an elastic locking and interlocking locking structure according to the present invention.
3 is a cross-sectional view showing a locking device for a manhole having an elastic lock and an engagement lock structure according to the present invention.
4 is a plan view showing a manhole having an elastic locking and interlocking locking structure according to the present invention.
5 is a perspective view showing a locking rotation shaft of a manhole having an elastic locking and interlocking locking structure according to the present invention.
6 is a cross-sectional view showing another embodiment of a locking rotation shaft in a manhole having an elastic locking and interlocking locking structure according to the present invention.
7 is a cross-sectional view showing another embodiment of a manhole having an elastic lock and an interlocking lock structure according to the present invention.
8 is a cross-sectional view showing another embodiment of a manhole having an elastic locking and interlocking locking structure according to the present invention.
9 is a cross-sectional view showing another embodiment of a manhole having an elastic locking and interlocking locking structure according to the present invention.

Since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiment may have various changes and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea.

On the other hand, the meaning of the terms described in the present invention should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

When a component is referred to as "connected" to another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. Meanwhile, other expressions describing the relationship between elements, that is, “between” and “immediately between” or “neighboring to” and “directly adjacent to”, etc., should be interpreted similarly.

The singular expression is to be understood to include the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the embodied feature, number, step, action, component, part or these It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

Identifiers (eg, a, b, c, etc.) in each step are used for convenience of description, and the identification code does not describe the order of each step, and each step clearly indicates a specific order in context. Unless otherwise specified, it may occur in a different order from the specified order. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

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. Terms defined in the dictionary should be interpreted as being consistent with the meaning of the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

1 is a cross-sectional view showing a manhole having an elastic locking and interlocking locking structure according to the present invention. 2 is a cross-sectional view showing an elastic locking device for a manhole having an elastic locking and interlocking locking structure according to the present invention. 3 is a cross-sectional view showing a locking device for a manhole having an elastic lock and an engagement lock structure according to the present invention. 4 is a plan view showing a manhole having an elastic locking and interlocking locking structure according to the present invention. 5 is a perspective view showing a locking rotation shaft of a manhole having an elastic locking and interlocking locking structure according to the present invention. 6 is a cross-sectional view showing another embodiment of a locking rotation shaft in a manhole having an elastic locking and interlocking locking structure according to the present invention. 7 is a cross-sectional view showing another embodiment of a manhole having an elastic lock and an interlocking lock structure according to the present invention. 8 is a cross-sectional view showing another embodiment of a manhole having an elastic locking and interlocking locking structure according to the present invention. 9 is a cross-sectional view showing another embodiment of a manhole having an elastic locking and interlocking locking structure according to the present invention.

As shown in the drawings, the present inventor's manhole 10 having an elastic locking and interlocking locking structure (hereinafter referred to as a manhole for convenience of description) is attached to and detached from the manhole frame 20 and the manhole frame 20 installed on the ground. As a manhole 10 made of a manhole cover that can be fitted, such a manhole 10 consists of a manhole frame 20 and a manhole cover 30 .

The manhole frame 20 is made of a metal material, and is formed in a circular tubular shape as shown in the drawing. The manhole frame 20 has an annular locking jaw 21 and a seating groove 22 formed along the inner periphery.

A wing having an annular coupling hole is provided on the outer periphery of the manhole frame 20 and fastened to an anchor bolt provided in the manhole block.

The manhole cover 30 is made of a metal material, and is fitted to the manhole frame 20 to be caught by the locking jaw 21 .

At this time, the manhole cover 30 is provided with an elastic locking device 40, and the elastic locking device 40 has an operating port 411 on the other side and a fastening hole 412 on one side, and the manhole An operating housing 41 integrally formed on the lower surface of the lid 30 or fixed by welding, and a seating protrusion 421 disposed inside the operating housing 41 and fitted into the seating groove 22 on the front side. is formed, and the operation head 42 having an operation shaft 422 formed therein so as to penetrate through the fastening hole 412 on the rear surface thereof, is fitted in the operation shaft 422, and the operation head 42 is inserted into the seating groove ( 22) consists of an elastic spring 43 for pressing in the direction, and a fixing nut 44 fastened to the end of the operation shaft 422 passing through the fastening hole 412, so that the elasticity of the elastic spring 43 is increased. After inserting the seating protrusion 421 into the seating groove 22 by pressing the operation head 42 by This prevents the seating protrusion 421 fitted into the seating groove 22 from falling out and also prevents the manhole cover from falling out of the manhole frame 20, and the manhole cover 30 is moved by external force or to prevent vibration.

At this time, a separation hole is formed in the manhole cover 30, a separation tool is introduced through the separation hole, and the operation head 42 is pressed in the direction of the operation housing 41 to be seated in the seating groove 22. After the projection 421 is separated, the manhole cover 30 is separated from the manhole frame 20 .

Here, a seating cap made of a synthetic resin material having elasticity is further inserted into the seating protrusion 421 of the operation head 42 and adhesively fixed, so that the seating protrusion 421 and the seating cap are in the seating groove 22 . By fitting it, it is preferable to reduce friction noise generated in the process of fitting the seating protrusion 421 into the seating groove 22 by the elasticity of the seating cap, and to alleviate external shock or vibration. .

The manhole cover 30 is further provided with a locking device 50 to fix the manhole cover 30 to the manhole frame 20 .

The interlocking locking device 50 includes an operation hole 51 formed in the manhole cover 30 , a lock rotation shaft 52 inserted through the operation hole 51 , and an upper portion of the lock rotation shaft 52 . A support panel 53 formed integrally with the upper surface of the manhole cover 30 to prevent the lock rotation shaft 52 from being separated from the operation hole 51, and the lock rotation shaft 52 A locking panel that is integrally formed on the lower part and is caught on the lower part of the locking jaw 21 by the rotation of the lock rotation shaft 52 to prevent the manhole cover 30 from being separated from the manhole frame 20 ( 54), and a guide panel 55 integrally formed with the lock rotation shaft 52 to be disposed between the support panel 53 and the locking panel 54, and a guide protrusion 551 integrally formed on the bottom surface. As a result, the guide protrusion 551 presses the upper surface of the locking jaw 21 by the rotation of the lock rotation shaft 52 to push up the manhole cover 30 upward.

The locking panel 54 and the guide panel 55 are arranged symmetrically in the diagonal direction as shown in the figure, and the locking panel 54 is moved by the rotation of the locking rotation shaft 52 of the locking jaw 21 . As the guide panel 55 is disposed on the upper side of the locking jaw 21 by being separated from the lower part and continuously rotating, the guide protrusion 551 presses the upper surface of the locking jaw 21 . At this time, the upper surface of the guide panel 55 is disposed in contact with the lower surface of the manhole cover 30, and the manhole cover 30 is pushed upward as shown in the figure by the pressure of the guide protrusion 551. do.

The guide protrusion 551 is formed to be curved in a semicircular shape as shown in the drawing, and when the lock rotation shaft 52 rotates, it is guided to the end of the locking protrusion 21 and presses the upper surface thereof.

At this time, by further integrally forming a locking protrusion 541 formed to be curved in a semicircular shape on the upper surface of the locking panel 54, the locking protrusion 541 is fixed by pressing the upper surface of the locking protrusion 21. It is possible.

Alternatively, the upper surface of the locking panel 54 is formed to be inclined so that the upper surface presses the lower surface of the locking jaw 21 by rotation so that the locking panel 54 is pressed and fixed to the lower surface of the locking jaw 21 . By doing so, it is also possible to fix the lock rotation shaft 52 .

That is, the elastic locking device 40 prevents the manhole cover 30 from moving horizontally in the drawing, and prevents the manhole cover 30 from moving vertically by the interlocking locking device 50 . do.

At this time, the guide projection 551 and the locking projection are formed of a synthetic resin material having elasticity, the guide projection 551 is fused to the guide panel 55 , and the locking projection 541 is attached to the locking panel 54 . ) by fusion and fixing, it is desirable to reduce wear due to friction, improve adhesion, and cushion impact.

A pressing elastic protrusion 521 made of a synthetic resin material having elasticity on the outer surface is further fixed to the lock rotation shaft 52 by fusion or attachment, and the locking jaw 21 formed in the manhole frame 20 has the inner surface. When the fastening groove 211 is further formed so that the pressing elastic protrusion 521 is inserted, the locking rotation shaft 52 is rotated as shown in the figure so that the locking panel 54 is disposed on the lower surface of the locking protrusion 21 , the pressing elastic protrusion 521 is fitted with the fastening groove 211 to prevent the lock rotation shaft 52 from being rotated by vibration or impact transmitted from the outside and is fixed.

In addition, since the pressing elastic protrusion 521 is formed of a synthetic resin material having elasticity, it is possible to prevent noise due to friction from being generated and to cushion the impact.

The pressing elastic protrusion 521 is formed on the lock rotation shaft 52 to be disposed on the upper side of the locking panel 54 .

Here, an operation groove 71 is further formed on the outer surface of the lock rotation shaft 52, and a pressure cylinder is inserted into the operation groove 71 and screwed together, and the end of the pressure shaft of the pressure cylinder is made of a synthetic resin material having elasticity. By attaching an elastic pressure pad made of an elastic pressure pad so that the elastic pressure pad presses the inner surface of the locking jaw 21 by driving the pressure cylinder, the lock rotation shaft 52 is prevented from being rotated by external force or vibration It is preferable to do

At this time, by further screwing a vibrator, which is a vibrator, to the outer surface of the lock rotation shaft 52 and fixing the vibrator, the vibration of the vibrator is transmitted through the lock rotation shaft 52 to the locking panel 54 and the locking jaw 21. It is preferable to reduce the jamming or friction in the process of separating the locking panel 54 from the lower part of the locking jaw 21 by rotating the locking rotation shaft 52 by being transmitted to the locking shaft 52 .

In addition, as shown in the figure, a ring bearing 522 is fixed to the lock rotation shaft 52 by force fitting, and an elastic ring 523 made of a synthetic resin material having elasticity is inserted into the ring bearing 522 and then fixed by bonding. By doing so, the elastic ring 523 is supported on the inner surface of the locking jaw 21 so that a certain distance is maintained between the locking jaw 21 and the lock rotation shaft 52, and the lock rotation shaft 52 is It is possible to maintain a vertical state in the drawing, so that it is inclined in the direction of the jamming jaw after the fastening or separation process or after being fastened to prevent damage due to concentration of force on a part, and it is possible to firmly maintain the locked state, and when rotating Preferably, the lock rotation shaft 52 is rotated by the ring bearing 522 to prevent the elastic ring 523 from rubbing against the inner surface of the locking jaw 21 .

The locking panel 54 presses the inner surface of the manhole frame 20 by elasticity, so that when the locking panel 54 is placed on the lower part of the locking jaw 21, a pedestrian or a vehicle walks on it. Pressurized elastic fixing means 60 at the end to prevent the locking rotation shaft 52 from being rotated in a state in which the locking panel 54 is disposed to be caught on the lower portion of the locking jaw 21 by external force or vibration generated ) is further provided.

The pressing elastic fixing means 60 includes a pressing elastic coil spring 61 having one end welded to the end of the engaging panel 54 and fixed, and the pressing elastic coil spring 61 fitted to the engaging panel 54 ), a fixed pipe 62 having one end connected and fixed by welding, and a roller bracket 63 that is welded and fixed to the other end of the pressurized elastic coil spring 61 passing through the fixed pipe 62, and the roller bracket It consists of a guide roller 64 rotatably coupled to the guide roller 64 and an elastic pressure tube 65 formed of a synthetic resin material having elasticity that is fixed by adhesion after being fitted to the guide roller 64, and the lock rotation shaft 52 ), the guide roller 64 is guided to the inner surface of the manhole frame 20 while the locking panel 54 is caught and fixed to the lower part of the locking jaw 21 by the rotation of the pressing elastic coil. When the spring 61 is compressed and the lock rotation shaft 52 stops rotating due to the compressed elasticity, the guide roller 64 and the elastic pressure tube 65 press the inner surface of the manhole frame 20 and the The lock rotation shaft 52 is rotated by an external force to prevent the locking panel 54 from being separated from the locking jaw 21 .

In addition, the adhesion to the manhole frame 20 is improved by the elasticity of the elastic pressure tube 65 to prevent the lock rotation shaft 52 from being rotated again.

A fitting-type elastic support means 70 is further provided in the seating groove 22 of the manhole frame 20 to support the seating protrusion 421 of the operation head 42 by elasticity.

The fit-type elastic support means (70) has an operation groove (71) formed in the seating groove (22), is fitted in the operation groove (71), and one end is welded to the inner surface of the operation groove (71) and fixed. A support coil spring 72 to be used, a support cap 73 that is welded to the other end of the support coil spring 72 and fixed, and into which the seating protrusion 421 of the operation head 42 is fitted, and the support cap ( 73) is fitted and fixed, and is adhesively fixed after being fitted in the support cap 73, and an elastic buffer cap 74 made of a synthetic resin material having elasticity to support the seating protrusion 421 of the operation head 42, and , roller grooves 75 formed on the upper and lower surfaces of the support cap 73 , and a guide which is axially coupled to the roller groove 75 and is partially protruded outside the roller groove 75 . Consisting of a roller 76, when the seating protrusion 421 presses the support cap 73, the support coil spring 72 is compressed while supporting the seating protrusion 421 by elasticity. By buffering the shock, the external shock is transmitted to the seating protrusion 421 to prevent separation from the seating groove 22, and the elastic buffer cap 74 is fastened to the support cap 73, the The adhesion and fixing force with the seating protrusion 421 are improved, the impact is prevented from being transmitted by elasticity, and the guide protrusion 551 is guided to the guide roller 76 and fitted to the support cap 73 . and to prevent friction or jamming in the process of separation.

Although the present invention has been described in detail so far, it is clear that the embodiments mentioned in the process are only illustrative and not restrictive, and the present invention is the technical spirit or field of the present invention provided by the following claims Within the range not departing from, it will be said that component changes to a degree that can be equally dealt with fall within the scope of the present invention.

10: manhole
20: manhole frame
21: jamming jaw
211: fastening groove
22: seating groove
30: manhole cover
40: elastic locking device
41: operating housing
411: operation tool
412: fastener
42: operation head
421: seating projection
422: operating shaft
43: elastic spring
44: fixing nut
50: interlocking device
51: operation hole
52: lock rotation shaft
521: pressurized elastic projection
53: support panel
54: jamming panel
541: stumbling block
55: guide panel
551: guide projection
60: pressurized elastic fixing means
61: pressurized elastic coil spring
62: fixed tube
63: roller bracket
64: guide roller
65: elastic pressure tube
70: Fit-type elastic support means
71: operating groove
72: support coil spring
73: support cap
74: elastic buffer cap
75: roller groove
76: guide roller

Claims (5)

It consists of a manhole frame having a locking jaw and a seating groove formed on the inner surface, and a manhole cover fitted to the manhole frame,
An elastic locking device is provided on the manhole cover, and the elastic locking device includes an operating housing having an operating port and a fastening hole formed on one side, and a seating projection disposed inside the operating housing to be fitted into the seating groove on the front side. A manhole having an elastic locking structure and an interlocking locking structure comprising an operation head having an operation shaft formed on the rear surface to penetrate through the fastening hole, an elastic spring fitted to the operation shaft, and a fixing nut fastened to an end of the operation shaft In
A locking device is further provided on the manhole cover, and the locking device includes an operation hole formed in the manhole cover, a lock rotation shaft fitted into the operation hole, and a support panel formed on an upper portion of the lock rotation shaft; It consists of a locking panel formed under the locking rotary shaft and caught on the lower part of the locking jaw by rotation of the locking rotary shaft, and a guide panel disposed between the support panel and the locking panel and formed with a guide protrusion on the bottom surface,
A pressing type elastic fixing means is further provided at the end of the locking panel to press the inner surface of the manhole frame by elasticity,
The pressurized elastic fixing means,
a pressing elastic coil spring having one end connected to the end of the locking panel and fixed;
a fixing pipe fitted to the pressing elastic coil spring and having one end connected to the end of the locking panel and fixed;
a roller bracket connected to and fixed to the other end of the pressurized elastic coil spring;
a guide roller which is rotatably fastened to the roller bracket;
A manhole having an elastic locking and interlocking locking structure, characterized in that it consists of an elastic pressure tube fitted to the guide roller.
delete The method of claim 1,
A pressing elastic protrusion is further formed on the outer surface of the lock rotation shaft,
A manhole having an elastic locking and interlocking locking structure, characterized in that the locking jaw formed in the manhole frame further has a fastening groove so that the pressing elastic protrusion is introduced.
delete The method of claim 1,
A fitting type elastic support means is further provided in the seating groove of the manhole frame to support the seating projection of the operation head by elasticity,
The fitting-type elastic support means,
an operating groove formed in the seating groove;
a support coil spring fitted in the operating groove and having one end connected and fixed;
a support cap connected to and fixed to the other end of the support coil spring, and into which a seating protrusion of the operation head is fitted;
an elastic cushioning cap which is fitted and fixed to the support cap and supports the seating protrusion of the operation head fitted to the support cap;
roller grooves formed on the upper and lower surfaces of the support cap;
A manhole having an elastic locking and interlocking locking structure, characterized in that it comprises a guide roller that is rotatably fastened to the roller groove.

Images