JP2596060Y2 - Lid for underground structures - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates, it is possible safely open and close the lid body from the receiving frame, to a lid for a lid body easily removable underground construction with respect to receiving frame.

[0002]

2. Description of the Related Art Hitherto, a hinge having a receiving frame and a lid body for closing an opening of the receiving frame so as to be openable and closable is provided on a receiving seat provided on an inner surface of the receiving frame. Various lids for underground structures such as manhole lids that are inserted and connected have been proposed. The present applicant can change the direction of the lid body very easily even after the receiving frame is installed, and has a wide effective inner diameter inside the receiving frame, so that the lid body can be opened and closed and attached to and detached from the receiving frame. A cover for an underground structure capable of extremely easily and safely performing an operation has been proposed (Japanese Utility Model Laid-Open No. 4-138443).

[0003]

In the above-mentioned conventional cover for an underground structure, a pivot pin of a seat is inserted into a support groove of a mounting space on the inner periphery of a receiving frame, and a connecting space of the receiving seat is connected to the connecting groove. Since the hinge is locked to the locking space of the seat through the space, when the lid body is turned over or turned to open and close the opening of the receiving frame, the hinge will move up and down. With the movement, the seat itself moves up and down or rotates, the pivot pin comes out of the support groove, the seat comes off the mounting space, and the hinge passes from the locking space of the seat. There is a possibility that the member may move toward the part and separate from the seat. The present invention has been developed in view of the above, and during opening and closing work of the lid body, the seat is detached from the mounting space,
An object of the present invention is to provide a lid for an underground structure that allows a hinge body to be safely and easily detached and opened and closed without a hinge being detached from a seat.

[0004]

In order to achieve the above object, the present invention comprises a lid body provided with a hinge that oscillates and a receiving frame for closing the opening so that the lid body can open and close. , The receiving frame has a mounting space to be released inside the receiving frame.
Form shape and a bearing piece having a bearing hole in the left and right sides of the mounting hollow portion which opens in a horizontal direction, and a bearing seat having a fastening hole opened vertically or horizontally, toward the center of the receiving frame A stopper space provided at the lower end of the hinge, through which a stopper portion can pass, a stopper portion, through which the stopper portion cannot pass, and which locks the hinge, and the passage space, After a stopper having a communication space communicating with the stop portion, a stopper portion is inserted into the passage space, a shaft pin is inserted so as to cross the passage space, and a tip of the shaft pin is inserted. The base end of the shaft pin is inserted into the bearing hole and fastened to the fastening hole by fastening means, and is rotatably provided on the receiving frame. The above structure
In installation, provide a plurality of mounting cavities inside the receiving frame
Can be.

[0005]

The seat through the [action] hinge device, can be mounted rotatably by a shaft pin preparative with empty portion provided on the receiving frame, to prevent the escape of the hinge member through the seat by the shaft pin. Further, the shaft pin can be fixed to the receiving frame by the fastening means, so that the shaft pin can be prevented from falling off and can be made detachable. When there are multiple mounting cavities
Changes the mounting position of the seat even after installing the receiving frame
To easily change the direction of the lid body
Can be.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment of the drawings. A lid 1 for an underground structure according to the present invention closes an annular receiving frame 2 and an opening of the receiving frame 2 so as to be openable and closable. And a lid body 3.

[0007] The receiving frame 2 has an inclined fitting portion 4 whose diameter is slightly reduced downward on the inner peripheral surface of the upper portion, and a below-described receiving portion is provided on a side wall portion below the inclined fitting portion 4. Wear seat 12
Mounting space 5 for mounting, and this mounting space 5 and the diameter direction
At the position facing the direction, a lock provided on the lid body 3 (shown in FIG.
3) is provided with a mounting cavity 5 'as a lock seat . The mounting hollow portion 5, for example, as shown in FIG. 11, open in the center of the receiving frame 2, opposite side bulges to extend toward the outer periphery of the receiving frame 2.

On one side of the mounting space 5, a bearing piece 7 having a bearing hole 6 opened in the horizontal direction is provided.
The receiving frame 2 extends toward the center. Further, a bearing seat 9 having a fastening hole 8 that opens in a vertical direction is provided on a side portion facing the bearing piece 7 so as to extend toward the center of the receiving frame 2. The upper surface of the bearing seat 9 is substantially horizontal and supports one end of a shaft pin 10 described later. In addition, the bearing seat 9 is provided with the vertical fastening hole 8 as described above,
A nut receiving portion 11 is provided in the middle of the bearing seat 9 in the height direction so as to communicate with the fastening hole 8 and open on an inner side surface facing the bearing piece 7 .

The ceiling surface of the mounting space 5 is formed to be substantially horizontal, and when a seat 12 described later is mounted, the base end portion 12a of the seat 12 is locked from below. The seat 12 in the mounted state is held substantially horizontally.

Further, in the illustrated embodiment, a continuous horizontal groove 13 is formed at the lower end of the inclined fitting portion 4, and a packing 14 is fitted in the horizontal groove 13.

A receiving seat 12 rotatably mounted on the mounting space 5 by means of a shaft pin 10 is provided with a hinge 15 for connecting the lid body 3 for opening and closing the opening of the receiving frame 2. As shown in FIGS. 11 to 14, for example, the hinge 15 is in the form of a vertical rod having an upper end pivotally supported on one side edge of the lid main body 3 and swingably suspended therefrom. A horizontal shaft 16 protrudes, the shaft 16 is mounted on a support groove 18 provided on the lower surface of one side edge of the lid body 3, and the hinge retainer 17 is fixed to the support groove 18 by a stopper member 19, whereby the butterfly is formed. turn instrument 15 Ru swingably supported as a rotation about the axis 16.

At the lower end of the hinge 15, a stopper 20 having an enlarged diameter is integrally provided. This stopper portion 20
Is lower surface with a flat shape, is formed on the upper surface portion ho Isuzu hemispherical.

The seat 1 for mounting the hinge 15 as described above.
Reference numeral 2 denotes a substantially U-shaped or quadrilateral frame member as shown in FIGS . 4 to 10, and side portions 12b, 12b extend from left and right edges of the base end portion 12a. Of the side portions 12b, 12b are continuous with each other at the leading end to form a cavity portion 21 therein.

The hinge 15 is inserted through the cavity 21. That is, the cavity portion 21 is located on the base end portion 12a side, and the passage cavity 22 through which the stopper portion 20 of the hinge device 15 can pass, and the stopper portion 20 cannot pass, so that the hinge device 15 is locked. And a connecting space 24 connecting the passing space 22 and the locking space 23 to each other.

The side portions 12b, 12b are formed so that the vicinity where the communication space 24 is formed extends downward so that the bulge 12
c. An inclined guide surface 25 is provided on the upper surface of each of the cavities 22, 23, and 24 when the hinge 15 swings, and the lower surface of each of the cavities 22, 23, and 24 is provided with a hinge. An inclined locking surface 26 for locking the upper surface portion of the stopper portion 20 of the tool 15 is provided.

The base end portion 12a side of the receiving seat 12
In the side portions 12b, 12b, there are insertion holes 27 for inserting the shaft pin 10 mounted so as to cross the passage space 22.
Are provided facing each other with the passage space 22 interposed therebetween.

The shaft pin 10 inserted into the receiving seat 12 has a flat head 10b having a diameter larger than the shaft diameter at one end of a cylindrical shaft main body 10a. A fixing hole 10c in a direction perpendicular to the direction is provided.

The underground construction for the lid 1 according to the present invention is consisted of a respective components described above, fitted with a seat 12 in the mounting hollow portion 5 digits set in receiving frame 2, fitting the lid body 3 The case will be described below.

[0019] In the underground construction for the lid 1 according to the present invention, attaching a previously not a hinge member 15 to the lid body 3. That is, the lid <br/> placing the body 3 with inversion the state, fitted with a shaft 16 of the hinge member 15 to the support grooves 18, the hinge retainer 17 stopper member 19
The hinge 15 is fixed to the support groove 18 by the
To be swingable.

Next, the hinge 15 fixed to the lid body 3 as described above is inserted into the receiving seat 12. That is, hinge 1
5 is passed through the passage space 22 of the seat 12 and moved from the communication space 24 to the locking space 23. Then, the base end portion 12a of the seat 12 through the hinge 15
And the bearing hole 6 of the bearing piece 7 communicates with one of the insertion holes 27, and the other insertion hole 27 faces the side of the bearing seat 9. In addition, at the time of this alignment, it may be necessary to move the lid body 3.
Since the lid body 3 is placed on the ground surface, it is not necessary to support the weight of the lid body 3 and the operation is easy.

When the insertion hole 27 of the receiving seat 12 and the bearing hole 6 of the bearing piece 7 are aligned in series, the shaft pin 10 is inserted from the insertion hole 27 of the bearing seat 9 toward the bearing hole 6 of the bearing piece 7. . Then, put the head 10b of the shaft pin 10 in the bearing seat 9, aligned with fastening holes 8 provided in the fixing holes 10c and the bearing seat 9 of the pivot pin 10, as fastening means 28, a fixed bolt 28a by screwing the nut 28b mounted on the nut受空unit 11 performs retaining the shaft pin 10. As the above-mentioned fixing bolt 28a, it can be used, for example hexagon socket button bolts.

When the shaft pin 10 is mounted as described above, the lid body 3 is raised and attached to the opening of the receiving frame 2 to close the opening. That is, in the lid 1 for an underground structure according to the present invention, as shown in FIGS. 11 to 14, the hinge 15 is swingable with respect to the lid body 3. In addition, the hinge 15 is rotatable with respect to the receiving seat 12 and is movable in the locking space 23 and the communication space 24. In addition, the hinge 15 can be tilted while the stopper portion 20 is locked on the tilt locking surface 26. Meanwhile, seat 1
Reference numeral 2 designates a bearing from a substantially horizontal state in which the base end portion 12a is locked to the ceiling of the mounting space 5 with the shaft piece 10 fixed to the bearing piece 7 and the bearing seat 9 provided on the receiving frame 2 as a fulcrum. The seat 12 is rotatable to a state of being slightly inclined from the vertical position, which is locked to the edge of the inclined fitting portion 4. Therefore, the opening and closing operation of the lid body 3 can be performed extremely smoothly. In addition, since there is no need to support the lid body 3 in an unstable state during the work of mounting the seat 12 and the like, the work can be performed not only easily but also safely.

[0023] Incidentally, in the above description, after attaching the hinge member 15 to the lid body 3, through the hinge member 15 to the seat 12, although further attach the seat 12 to the receiving frame 2, the hinge device 15 After attaching the passing seat 12 to the receiving frame 2 in advance,
The hinge 15 can be attached to the lid body 3.

On the other hand, in the state where the closing an opening fitted with a lid body 3 to the seat 12, as shown in FIG. 12, the hinge device 1
5 is suspended from the lid main body 3 and is located in the passage space 22 of the receiving seat 12 which is substantially horizontal. In order to release the lid body 3 from this state, one side of the lid body 3 is lifted up from the receiving frame 2 with a bar or the like, and is moved in the horizontal direction while being lifted up. As shown in FIG. 12 moves from the communication space 24 to the locking space 23, and the stopper 20 is locked to the inclined locking surface 26, so that the lid body 3 extends for approximately the length of the hinge 15 and the receiving seat 12. Thus, one side edge is located on the upper surface of the receiving seat 12.

[0025] In this state, after about a hinge member 15 to pivot the lid <br/> body 3 in the horizontal direction, further pulled radially upper lid body 3 of receiving frame 2 as shown in FIG. 14 Can be evacuated. At this time, since the receiving seat 12 stands up with the shaft pin 10 as a fulcrum, the receiving frame 2 can be opened sufficiently large.

On the other hand, when closing the opening of the receiving frame 2 with the lid body 3, the lid body 3 may be moved in the reverse direction to fit the receiving frame 2.

According to the lid 1 for an underground structure of the above embodiment, after the hinge 15 is mounted on the seat 12, the shaft pin 10 is inserted into the seat 12, and the shaft pin 10 is fixed by the fixing bolt 28a. Since it is fixed to the receiving frame 2, the shaft pin 10 does not come off and the receiving seat 12 does not come off. After the hinge 15 is passed through the passage space 22 of the seat 12, the hinge pin 15 is inserted through the passage space 22, so that the hinge 15 does not fall out of the seat 12.

Further, in the lid 1 for an underground structure having the above-described configuration, the opening and closing of the lid body 3 is performed by the cooperative operation of the upwardly rotatable receiving seat 12 and the hinge 15, so that it is sufficient. Operating range can be secured. Therefore, hinge 1
It is also possible to prevent the lower end of 5 from protruding from the lower surface of the receiving frame 2, and in this case, it is possible to stack and store and transport. In addition, it can be installed in a place where there is no dimensional margin on the lower surface side of the receiving frame 2, and there are few restrictions on the installation place, which is convenient.

The underground structure lid 1 of the above embodiment is
At the mounting space 5 on the inner peripheral surface of the receiving frame 2,
The lock seat 5 'is formed, but the seat 12 is
Be sure to form a mounting space 5 that can be mounted.
Therefore, even after the receiving frame 2 is set, the position of the receiving seat 12 can be easily adjusted.
Change the direction of the lid body 3 according to the environment of the installation location.
Can be changed. At this time, put on the seat 12
The empty mounting space 5 engages the lock provided on the lid body 3.
It can be used as a lock seat.

Although the present invention has been described with reference to the embodiments of the drawings, the present invention is not limited to the above-described embodiments. But it can be implemented. For example, the fastening holes may be either vertical or horizontal.
The fixing means for fixing the shaft pin to the bearing seat of the receiving frame may have any configuration as long as it can prevent the shaft pin from coming off. Also, in the above embodiment, in consideration of the use of the other mounting space as a lock seat, the mounting space is provided facing two inner surfaces of the receiving frame. And the number and interval are not limited.

[0031]

In summary, the present invention comprises a lid body provided with a hinge that oscillates and a receiving frame for closing the opening so that the opening can be opened and closed. form forms a mounting hollow portion to release the interior, and the bearing piece on the left and right sides of the mounting hollow portion having a bearing hole opened in the horizontal direction, a bearing seat having a fastening hole opened vertically or horizontally Are opposed to the center of the receiving frame, and a passing space portion through which a stopper portion provided at the lower end of the hinge is able to pass, and a locking portion where the stopper portion is not passable and locks the hinge. After passing a stopper having a communicating cavity communicating with the passing cavity and the locking cavity, a stopper is inserted into the passing cavity, and a shaft pin is passed through the passing cavity. Inserting the distal end of the shaft pin into the bearing hole and attaching the base end of the shaft pin to the fastening hole. As the hinge pin is rotatably provided on the receiving frame, the shaft pin does not come off from the receiving frame and the seat does not come off, and the hinge pin crosses the passage empty space of the seat, so the hinge It does not fall out of the seat. In addition, the seat and the hinge can be mounted while the lid body is placed on the ground surface, and there is no need for an operator to support the heavy lid body, making the operation extremely easy and safe. become. In addition, since the lid for underground structures according to the present invention has a plurality of mounting cavities formed in the receiving frame and the receiving seat is detachable,
Even after the installation of the receiving frame, the direction of the lid main body can be easily changed by changing the mounting position of the receiving seat.
Therefore, in the case where a curb or a tree is present in the turning direction or the reversing direction of the lid body and becomes an obstacle, the obstacle can be solved only by changing the position of the seat and changing the release fulcrum position of the lid body. Alternatively, even when the design of the lid body does not match the road surface, the position of the seat can be changed to change the design state of the lid body. Moreover, in such a case, the attachment / detachment work of the lid body can be performed without straddling the receiving frame, so that it is safe. Furthermore, since the seat is rotatable in the vertical direction with respect to the receiving frame , when the lid body is released, the amount of protrusion of the seat into the receiving frame is reduced, so that the effective inner diameter of the receiving frame is increased. Not only is it easy and safe for workers to enter and exit, but also large maintenance and inspection equipment can be brought in and out of the manhole.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a receiving frame in a lid for an underground structure according to the present invention.

FIG. 2 is a partially enlarged plan view of a receiving frame.

FIG. 3 is a partially enlarged front view of a receiving frame with a part cut away.

FIG. 4 is a plan view of a seat.

FIG. 5 is a front view of a seat.

FIG. 6 is a bottom view of the seat.

FIG. 7 is a sectional view taken along line AA of FIG. 4;

FIG. 8 is a right side view of the seat.

FIG. 9 is a sectional view taken along line BB of FIG. 4;

FIG. 10 is a sectional view taken along line CC of FIG. 4;

FIG. 11 is a partial cross-sectional view of a state where a receiving frame, a receiving seat, a hinge, and a lid main body are separated.

FIG. 12 is a partial cross-sectional view of a state where a receiving frame, a receiving seat, a hinge, and a lid main body are assembled.

FIG. 13 is a partial cross-sectional view when the lid main body is released.

FIG. 14 is a partial cross-sectional view when the lid main body is turned 180 degrees in the horizontal direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Underground structure lid 2 Receiving frame 3 Lid main body 5 Mounting cavity 6 Bearing hole 7 Bearing piece 8 Fastening hole 9 Bearing seat 10 Shaft pin 12 Receiving seat 15 Hinge tool 20 Stopper section 22 Passing empty section 23 Locking empty section 24 Communication space 27 insertion hole 28 fastening means

Claims (2)

(57) [Scope of request for utility model registration] 1. A lid body provided with a hinge that oscillates and suspended, and a receiving frame that closes an opening of the lid body so as to be openable and closable. part form shapes with a bearing piece having a bearing hole in the left and right sides of the mounting hollow portion which opens in a horizontal direction, and a bearing seat having a fastening hole opened vertically or horizontally, the center of the receiving frame A passage space through which a stopper provided at the lower end of the hinge is allowed to pass, a stopper cavity through which the stopper is not allowed to lock the hinge, and the passage cavity. After a stopper having a communication cavity communicating with the locking cavity is passed through the stopper portion through the passage cavity, a shaft pin is inserted so as to cross the passage cavity, and a tip of the shaft pin is inserted. Into the bearing hole and the base end of the shaft pin is fastened to the fastening hole by fastening means. Underground construction for the lid being characterized in that disposed rotatably. 2. A plurality of said mounting cavities are provided inside a receiving frame.
The underground structure according to claim 1, wherein the underground structure is damaged.
Cover.