KR102395857B1 - Sealed inner lid device with tooth rotation pressure locking function - Google Patents

Abstract

The present invention relates to a sealed inner lid device having a tooth rotation pressure type locking function and, more particularly, to an inner lid device fastened to a manhole frame, which comprises: an inner lid body disposed to be caught on the upper surface of a lower step formed on the inner surface of the manhole frame and provided with an elastic ring; a catching shaft disposed on the upper side of the inner lid body, and having both end portions caught on the lower surface of an upper step formed on the inner surface of the manhole frame; and a rotational pressing unit fastened to the catching shaft to rotate and pressing the inner lid body. The catching shaft and the rotational pressing unit are provided in the inner lid device fastened to the manhole to maintain airtightness such that the inner lid body of the inner lid device comes in close contact with the manhole frame by rotation of the rotational pressing unit to effectively maintain airtightness, to be conveniently used without a separate tool, and to improve support force and fixation force with a guide cap by forming a curved pressing surface on a tooth protrusion.

Description

Sealed inner lid device with tooth rotation pressure locking function }

The present invention relates to a sealed inner lid device having a gear rotation pressurizing locking function, and more particularly, by providing a locking shaft and a rotating pressure unit in the inner lid apparatus that is fastened to a manhole and maintains airtightness by rotation of the rotary press unit. The inner lid body of the inner lid device is in close contact with the manhole frame to effectively maintain airtightness, and it can be used conveniently without a separate tool. It relates to a sealed inner lid device having a gear rotation pressure locking function.

A manhole is a hole in the road surface that allows people to enter and exit underground. It is also used for liaison with the government. The most common shape is the round shape, which is easy to construct, and there are also square and oval shapes. The entrance is surrounded by a frame made of iron or stone, and is covered with a round lid made of cast iron or reinforced concrete, usually about 60 cm in diameter. The body is made of concrete or bricks, and the inner diameter of the passage hole is often 1-1.2m. The bottom is flush with the bottom of the pipeline, or lowered slightly to accommodate the sediment. The depth varies depending on the depth of the pipeline, but some are more than 100 m deep.

These manholes go inside after separating the manhole cover from the fixed manhole frame and include artificial manholes for new or repairing electric, telecommunication, water and gas facilities buried underground, and road sewage and rainwater. ) is divided into manual manholes for collecting, and is installed and used on concrete and asphalt concrete roads.

Among these manholes, an inner lid provided with a packing made of a rubber material is fastened to block the inflow of rainwater in case of rain, and the manhole cover is placed on the upper part of the inner lid to seal by the inner lid. It blocks the inflow of odors and prevents backflow of odors and sewage.

However, there is no device for maintaining airtightness by closely adhering the rubber packing to the manhole frame in the conventional inner cover fastened to the manhole. The problem of corrosion or damage to mechanical equipment or electrical wiring inside the manhole exists.

The above-mentioned 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. 2329955 Registration Room No. 0483387

The present invention has been devised to solve the problems of the prior art, and an object of the present invention is to provide a locking shaft and a rotary pressure unit in an inner lid device that is fastened to a manhole to maintain airtightness by rotation of the rotary pressure unit. The inner lid body of the inner lid device is in close contact with the manhole frame to effectively maintain airtightness, and it can be used conveniently without a separate tool. An object of the present invention is to provide a sealed inner lid device having a gear rotation pressure lock function.

The present invention is an inner lid device fastened to a manhole frame, disposed to be caught on the upper surface of a lower jaw formed on the inner surface of the manhole frame, an inner lid body provided with an elastic ring, and an upper side of the inner lid body, It characterized in that it consists of a locking shaft, both ends of which are caught on the lower surface of the upper jaw formed on the inner surface of the manhole frame, and a rotational pressure unit which is rotatably fastened to the locking shaft and pressurizes the inner lid body.

In addition, the rotary pressure unit includes a pressure disk axially coupled to the locking shaft, a release groove formed in the pressure disk, a toothed portion formed in the pressure disk to press the inner lid body, and the pressure disk is made of a rotating shaft having one end connected to the , and the toothed portion is characterized in that it is composed of toothed protrusions formed on the pressing disk.

In addition, the inner lid body is further formed with a guide cap having a curved guide groove so that the toothed protrusion is drawn in and pressurized on the upper surface, and a curved pressing surface is further formed in the toothed protrusion so as to be in close contact with the guide groove, The toothed protrusions formed on the pressing disk are characterized in that the height is gradually increased in the locking rotational direction.

In addition, the locking shaft is further provided with anti-locking support means to prevent movement while being caught on the upper jaw, wherein the anti-locking support means includes holding members formed at both ends of the locking shaft; It is formed on the upper end of the holding member, it is made of an angle engaging member fitted to the edge of the upper jaw, the engaging shaft is characterized in that the support wings are further integrally formed to support the upper surface of the inner lid body.

In addition, the guide cap is further provided with a retractable elastic support means to prevent the inner lid body from rotating by guiding the toothed portion and to support it by elasticity, the retractable elastic support means is a guide of the guide cap A curved engaging support groove formed in the groove and guiding the sawtooth protrusion of the sawtooth portion, a seating groove formed on a bottom surface of the locking support groove, and the seating groove formed in the engaging support groove, the upper portion is externally An elastic support panel disposed to protrude and pressed by the toothed portion, a curved elastic support surface formed on an upper surface of the elastic support panel and in close contact with the toothed projection, and an elastic support surface formed at an end of the elastic support panel, the elastic support panel It is characterized in that it consists of a guide inclined surface for guiding the sawtooth projection to be moved to the support panel.

The present inventor's sealed inner lid device having a toothed rotational pressurization locking function provides a locking shaft and a rotary pressure unit in the inner lid device that is fastened to a manhole to maintain airtightness, and the inner lid body of the inner lid device is rotated by the rotation of the rotary pressure unit. It is in close contact with the manhole frame to effectively maintain airtightness, and can be used conveniently without a separate tool, and has the effect of improving the holding power and fixing power with the guide cap by forming a curved pressing surface on the toothed protrusion.

1 is a cross-sectional view showing a sealed inner lid device having a tooth rotation pressure locking function according to the present invention.
Figure 2 is a plan view showing a sealed inner lid device having a tooth rotation pressure locking function according to the present invention.
Figure 3 is an operation state diagram showing the sealing type inner lid device having a gear rotation pressurization locking function according to the present invention.
Figure 4 is an exploded view showing a sealed inner lid device having a gear rotation pressurizing locking function according to the present invention.
Figure 5 is a cross-sectional view showing the locking shaft of the sealing type inner lid device having a tooth rotation pressure locking function according to the present invention.
Figure 6 is a cross-sectional view showing the rotation pressure unit of the sealed inner lid device having a tooth rotation pressure locking function according to the present invention.
7 is a cross-sectional view showing another embodiment of the sealed inner lid device having a tooth rotation pressure locking function according to the present invention.
Figure 8 is a partially enlarged cross-sectional view showing another embodiment of the sealing type inner lid device having a gear rotation pressure locking function 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 being “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 "between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The singular expression is to be understood as including 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.

In each step, identification numbers (eg, a, b, c, etc.) are used for convenience of description, and identification numbers do 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 the present 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 sealed inner lid device having a tooth rotation pressure locking function according to the present invention. Figure 2 is a plan view showing the sealing type inner lid device having a gear rotation pressurizing locking function according to the present invention. Figure 3 is an operation state diagram showing the sealing type inner lid device having a gear rotation pressurization locking function according to the present invention. Figure 4 is an exploded view showing a sealed inner lid device having a gear rotation pressurizing locking function according to the present invention. Figure 5 is a cross-sectional view showing the locking shaft of the sealing type inner lid device having a tooth rotation pressure locking function according to the present invention. Figure 6 is a cross-sectional view showing the rotation pressure unit of the sealed inner lid device having a tooth rotation pressure locking function according to the present invention. 7 is a cross-sectional view showing another embodiment of the sealed inner lid device having a tooth rotation pressure locking function according to the present invention. Figure 8 is a partially enlarged cross-sectional view showing another embodiment of the sealing type inner lid device having a gear rotation pressure locking function according to the present invention.

As shown in the drawing, the sealed inner lid device 10 (hereinafter, referred to as a closed inner lid device for convenience of description) having a tooth rotation pressurization locking function of the present invention is a manhole frame to block odor from flowing back or rainwater from flowing in. As an inner lid device fastened to 100 , this inner lid device consists of an inner lid body 20 , a locking shaft 30 , and a rotational pressure unit 40 .

The inner lid body 20 is arranged so that the rim portion is caught on the upper surface of the lower jaw 200 formed on the inner surface of the manhole frame 100, while surrounding the inner lid body 20, an elastic ring 21 This is concluded

The inner lid body 20 is formed of a metal material or a synthetic resin material.

The elastic ring 21 is made of a synthetic resin material having elasticity, an annular fastening groove is formed on the inner surface to wrap the inner lid body 20 with the elastic ring 21, and then the inner lid body is located in the fastening groove. It is fixed by inserting the edge of (20). That is, the inner lid body 20 is pressed into the elastic ring 21 .

The bottom surface of the elastic ring 21 fastened to the inner lid body 20 is pressed while being in close contact with the upper part of the lower jaw 200, thereby maintaining airtightness by elasticity and improving the adhesion.

As shown in the drawing, the elastic ring 21 fastened to the inner lid body 20 is formed to protrude downward from the bottom of the inner lid body 20 in the drawing, and is caught by the lower jaw 200 do.

The locking shaft 30 is disposed on the upper side of the inner lid body 20 , and both ends are caught on the lower surface of the upper jaw 300 formed on the inner surface of the manhole frame 100 .

The locking shaft 30 is formed of a metal material, and both ends are caught by the upper jaw 300 of the manhole frame 100 and fixed.

The locking shaft 30 is caught by the upper jaw 300, it is possible to prevent the inner lid body 20 from falling upward.

At this time, a hollow coupling slip hole is formed in the central portion of the locking shaft 30 .

The rotation pressure unit 40 is rotatably fastened to the locking shaft 30 , and presses the inner lid body 20 .

The rotation pressure unit 40 includes a pressure disk 41 that is axially coupled to the locking shaft 30, a release groove 42 formed in the pressure disk 41, and the pressure disk 41. It is formed and consists of a toothed portion 43 for pressing the inner lid body 20, and a rotating shaft 44 having one end integrally formed and connected to the pressing disk 41, and the toothed portion 43 is It is composed of toothed projections 431 integrally formed on the pressing disk 41 .

After being inserted into the coupling slit hole, the pressing disk 41 is axially coupled to rotate, and it is also possible to rotate by axially or hingedly coupled to one side of the locking shaft 30 .

The unlocking groove portion 42 , the toothed portion 43 , and the rotating shaft 44 are sequentially formed on the edge of the pressing disk 41 .

That is, when the rotary shaft 44 is rotated to the right in the drawing, the pressure disk 41 rotates while the toothed projection 431 of the toothed part 43 presses the upper surface of the inner lid body, By pressing the lower jaw 200 by the elastic ring 21 of the inner lid body 20, the airtightness is maintained to block the inflow of rainwater and to prevent the reverse flow of sewage and odors.

After that, when the rotating shaft 44 is rotated to the left in the drawing during separation, the unlocking groove portion 42 of the pressing disk 41 is disposed on the upper side of the inner lid body, and the unlocking groove portion 42 and the Since a space is formed between the inner lid body 20 and the pressing force is released, it is possible to separate the inner lid body 20 after separating the locking shaft 30 .

At this time, the inner lid body 20 is further formed with a guide cap 22 having a guide groove 221 of a curved line so that the toothed projection 431 is drawn in and pressed on the upper surface, and the toothed projection 431 has A semicircular curved pressing surface 431a is further formed in close contact with the inner surface of the guide groove 221 , and the toothed projections 431 formed on the pressing disk 41 press the inner surface of the guide cap 22 . The height (h) about the axis of the pressing disk 41 is formed to gradually increase (to be gradually protruded outward) toward the rotation direction (counterclockwise in the drawing) to be locked.

The guide cap 22 is formed integrally with the inner lid body 20, and the inner lid body 20 and the guide cap 22 are formed by casting. Alternatively, it is also possible to form a through hole in the center of the inner lid body 20, and to weld the guide cap 22 to the through hole to fix it.

By the guide cap 22, the toothed protrusion 431 is introduced into the guide groove 221, so that the inner lid body 20 and the locking shaft 30 are placed in contact or close to each other without a space between them. , to prevent movement by supporting the inner lid body (20).

In addition, a curved pressing surface 431a is formed on the sawtooth protrusion 431 to improve adhesion to the inner surface of the curved guide groove 221 and to prevent jamming during the rotation process.

In addition, the height (h) of the toothed projections 431 is formed to gradually increase to a height (h), sequentially pressing the inner surface of the guide groove 221 so that an excessive load is transmitted to the toothed projections 431 or The stress is concentrated and it is prevented from being damaged, and by sequentially pressing, the inner lid body 20 is prevented from being damaged by abrupt pressurization.

Here, by further attaching an elastic pressure panel 80 made of a synthetic resin having elasticity to the bottom surface of the locking shaft 30 and the bottom surface of the support wings 53, the elastic pressure panel 80 is the inner lid body 20 ) by pressing the upper surface of the inner lid body 20 and the locking shaft 30 to improve the fixing force, to prevent movement or rotation by external force or vibration, it is preferable to buffer the impact Do.

In addition, the upper end of the elastic pressure coil spring is fixed to the lower surface of the locking shaft 30 and the lower surface of the support blade 53 by welding or screwing, and the lower end of the elastic pressure coil spring is the inner lid body (20). By pressing the upper surface of the, it is desirable to improve the fixing force and prevent it from being moved or rotated by external force or vibration, and to cushion the impact.

The locking shaft 30 is further provided with an anti-slip locking support means 50 to prevent movement while being caught by the upper jaw 300 .

The anti-slip locking support means 50 is integrally formed or welded with a holding member 51 integrally formed on both ends of the locking shaft 30 and an upper end of the holding member 51, the upper jaw It consists of an angle locking member 52 in the shape of "┘" or "└" that is fitted into the corner of the 300, and the locking shaft 30 has a support wing ( 53) are further formed integrally.

By allowing the angle locking member 52 to be caught and fixed to the upper jaw 300, the locking shaft 30 is prevented from moving, and the inner lid body 20 by the support wings 53. It is possible to prevent the inner lid body 20 from being moved or lifted again by supporting it.

Here, an elastic fixing pad 90 made of a synthetic resin material having elasticity is further attached to the inner surface of the angle locking member 52 to support the inner surface and the bottom surface of the upper locking jaw 300 by elasticity. It is desirable to buffer the material, improve adhesion and fixation by elasticity, and prevent friction.

The guide cap 22 is further provided with a retractable elastic support means 60 to guide the toothed portion 43 to prevent the inner lid body 20 from rotating and to support it by elasticity.

The retractable elastic support means 60 is formed in the guide groove 221 of the guide cap 22, and a curved engaging support groove 61 for guiding the toothed protrusion 431 of the toothed part 43 and , is fitted into the seating groove 62 formed on the bottom surface of the locking support groove 61 and the seating groove 62 formed in the locking support groove 61, the upper part is disposed to protrude to the outside, and the teeth An elastic support panel 63 made of a synthetic resin material having elasticity pressed by the part 43 and a curved elastic support surface formed on the upper surface of the elastic support panel 63 and in close contact with the toothed protrusion 431 (64) and a guide inclined surface (65) formed at the end of the elastic support panel (63) to guide the toothed protrusion (431) moved to the elastic support panel (63), the engaging support groove (61) ) to support the both sides of the toothed projection 431 of the toothed portion 43 into which both inner side surfaces of the retracted toothed projection 431 and the inner lid body to pressurize are prevented from being moved by external force or vibration, The toothed protrusion 431 presses the elastic support panel 63 to improve the adhesion by the elasticity of the elastic support panel 63 to prevent it from being moved again, and to buffer the transmission of shock caused by external force or vibration. will make it

In addition, the pressing surface 431a of the toothed protrusion 431 is in close contact by the elastic support surface 64 to increase the contact area to improve the adhesion, and the rotating toothed projection 431 is the guide inclined surface 65. It is guided to the elastic support surface 64 is prevented from being caught at the end of the elastic support panel 63 in the process of moving.

Here, the elastic support surface 64 is further formed integrally with engaging friction protrusions made of a synthetic resin material having elasticity to protrude upward in the drawing, so that the tooth protrusion 431 is pressed and caught. It is preferable to prevent the sawtooth protrusion 431 from being moved by vibration.

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 a range that does not depart 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: sealed inner lid device
20: inner lid body
21: elastic ring
22: guide cap
221: information home
30: catch shaft
40: rotation pressure unit
41: pressurized plate
42: Haejeong Home
43: toothed part
431: sawtooth
431a: pressurized surface
44: rotary shaft
50: anti-skid type jam support means
51: holding member
52: angle jamming member
53: support wing
60: retractable elastic support means
61: jamming support groove
62: seating groove
63: elastic support panel
64: elastic support surface
65: guide slope
70: elastic pressurized panel
80: elastic fixing pad
h: height
100: manhole frame
200: lower jaw
300: upper jaw

Claims (5)

As an inner lid device fastened to a manhole frame,
An inner cover body arranged to be caught on the upper surface of the lower jaw formed on the inner surface of the manhole frame, an inner lid body provided with an elastic ring, and an upper jaw disposed on the upper side of the inner lid body, both ends of which are formed on the inner surface of the manhole frame In the sealed inner lid device having a gear rotation pressurizing locking function consisting of a locking shaft caught on a bottom surface, and a rotational pressure unit that is rotationally fastened to the locking shaft and presses the inner lid body,
The rotary pressure unit includes a pressure disk axially coupled to the locking shaft;
a release groove formed in the pressing disk;
A toothed portion formed on the pressing disk to press the inner lid body,
It consists of a rotating shaft having one end connected to the pressure disk,
The toothed portion is composed of toothed projections formed on the pressing disk,
A guide cap having a curved guide groove is further formed on the inner lid body so that the toothed protrusion is drawn in and pressed on the upper surface,
A curved pressing surface is further formed in the sawtooth protrusion so as to be in close contact with the guide groove,
The toothed projections formed on the pressing disk are formed to gradually increase in height in the locked rotational direction,
In the guide cap, a retractable elastic support means is further provided to guide the toothed part to prevent the inner lid body from rotating and to support it by elasticity,
The retractable elastic support means,
A curved engaging support groove formed in the guide groove of the guide cap to guide the tooth protrusion of the toothed part;
a seating groove formed on the lower surface of the locking support groove;
an elastic support panel fitted into the seating groove formed in the locking support groove, the upper part protruding to the outside, and pressed by the toothed part;
Formed on the upper surface of the elastic support panel, and a curved elastic support surface in close contact with the sawtooth projection,
A sealed inner lid device having a sawtooth rotational pressurization locking function, characterized in that it is formed at an end of the elastic support panel and has a guide inclined surface guiding the toothed protrusion to be moved to the elastic support panel.
delete delete The method of claim 1,
The locking shaft is further provided with anti-skid-type locking support means to prevent movement while being caught on the upper jaw,
The anti-skid type jamming support means,
holding members formed on both ends of the locking shaft;
It is formed on the upper end of the holding member, and consists of an angle engaging member fitted to the corner portion of the upper jaw,
The locking shaft has support wings are further integrally formed to support the upper surface of the inner lid body.
delete

Images