JP2024021224A - inspection box - Google Patents

Abstract

[Problem] The present invention enables easy maintenance of cables, etc. inside an inspection box, eliminates the need to separately prepare a structural block for attaching a lid for the inspection box, and saves time and cost. To provide an inspection box that improves safety by easily attaching and fixing the lid to a box body, and in which the lid cannot be easily opened and closed. The present invention provides a box main body 2 having a rectangular tube shape with a plurality of side walls 5 and an open top surface, and a box main body 2 that is attached to the side walls from the upper end surface side to the lower end surface side. It is characterized by having at least one pair of lid attachment members 3 provided in the width direction of the side wall, and a lid 4 placed on the upper surface of the box body 2 and attached to the lid attachment member 3 in an openable and closable manner. [Selection diagram] Figure 6

Description

For example, the present invention stores a group of communication cables that are wired near a railway track, and is used for changing the direction or leveling a cable trough or other conduit, and is inspected when inspecting the group of stored communication cables. This relates to an inspection box used as an opening, such as a hand hole.

Handholes are used as relays for inserting and removing cables, and are basically installed at cable branch points and cable bends.

For example, when wiring cables in underground pipes, if the installation distance becomes long, it becomes difficult to route the cables, and maintenance such as replacing the cables becomes difficult. Additionally, if a problem occurs with a cable, only the end of the cable can be investigated to determine the cause, which poses the problem of problems with maintenance as the length of installation increases.

In order to solve these problems, by installing hand holes at predetermined intervals, branch points, and places where cables bend, there is no need to run cables over long distances at once, and when a problem occurs, it is easier to investigate the cause. has become easier and maintenance has been significantly improved.

By the way, a handhole cover is attached to the handhole in order to protect the cables and equipment wired inside the handhole. This handhole lid has a set breaking load, and must have enough strength to prevent it from breaking when a heavy object is placed on the top of the handhole. Conventionally, devices have been manufactured with a structure for installing the lid on the hand hole in advance, or a lid made of iron with a handle, for example, is simply placed on the hand hole. .

However, in the former case, a block with a structure on which the lid can be installed must be separately manufactured, which is time consuming and costly. In addition, since the latter is simply placed on the hand hole, the lid is not fixed to the hand hole, which poses safety concerns.

Furthermore, since anyone can easily open and close the lid for the hand hole with a hook or other device, measures are being considered to prevent the cable inside the hand hole from being easily opened for security reasons such as theft. ing.

Utility Model Publication No. 6-5336

Thus, the present invention was devised to solve the above-mentioned conventional problems, and it is possible to easily maintain the cables, etc. inside the inspection box, and to separately prepare a structural block for attaching the lid for the inspection box. To provide an inspection box in which safety is improved because the lid body can be easily attached and fixed to the box body, and the lid body is configured so that it cannot be easily opened and closed. The purpose is to

The present invention
A box body having a rectangular cylindrical shape having a plurality of side walls and an open top surface, and at least one pair of lid attachments provided in the width direction of the side walls, which are attached to the box body from the upper end surface side to the lower end surface side of the side walls. and a lid that is placed on the top surface of the box body and attached to the lid attachment member in an openable and closable manner,
The lid mounting member includes an upper locking part whose tip is locked on the outer surface of the side wall that straddles the upper end surface of the side wall of the box main body and is mounted from the inner surface of the side wall toward the outer surface, and a lower end surface of the side wall of the box main body. a lower locking part whose tip is locked to the outer surface of the side wall mounted from the inner surface of the side wall to the outer surface of the side wall, and a connecting plate part that connects the upper locking part and the lower locking part. and a first connecting cylinder extending in the horizontal direction is provided on the distal end side of the upper locking part,
The lid has a second connecting cylinder that is attached between the first connecting cylinders of the pair of lid attachment members and has a through hole that connects to the insertion hole provided in the first connecting cylinder,
A connecting rod is inserted through each hole of the first connecting cylinder and the second connecting cylinder, and is attached to the box body so as to be openable and closable.
It is characterized by
or
A box body having a rectangular cylindrical shape having a plurality of side walls and an open top surface, and at least one pair of lid attachments provided in the width direction of the side walls, which are attached to the box body from the upper end surface side to the lower end surface side of the side walls. and a lid that is placed on the top surface of the box body and attached to the lid attachment member in an openable and closable manner,
The lid mounting member includes an upper locking part whose tip is locked on the outer surface of the side wall that straddles the upper end surface of the side wall of the box main body and is mounted from the inner surface of the side wall toward the outer surface, and a lower end surface of the side wall of the box main body. a lower locking part whose tip is locked to the outer surface of the side wall mounted from the inner surface of the side wall to the outer surface of the side wall, and a connecting plate part that connects the upper locking part and the lower locking part. and a first connecting cylinder extending in the horizontal direction is provided on the distal end side of the upper locking part,
The upper locking part of the lid mounting member is fitted into the upper end surface of the side wall of the box body, and the connecting plate part is brought into contact with the inner surface of the side wall, and a resilient hook is provided at the tip of the lower locking part. The lower locking portion can be moved toward the outer surface of the side wall along the lower end surface of the side wall by pressing the lower locking portion, and after the movement, the tip of the front elastic hook portion is locked to the outer surface of the side wall and the lid mounting member is attached. Becomes tired,
The lid has a second connecting cylinder that is attached between the first connecting cylinders of the pair of lid attachment members and has a through hole that connects to the insertion hole provided in the first connecting cylinder,
A connecting rod is inserted through each hole of the first connecting cylinder and the second connecting cylinder, and is attached to the box body so as to be openable and closable.
It is characterized by
or
The pair of lid body attachment members are respectively attached to opposing side walls, and the attached lid body attachment members and the lid body division bodies constituting the lid body are connected, and a lid body constituted by the lid body division bodies. was said to be able to be opened and closed with double doors,
It is characterized by
or
A locking portion is provided at approximately the center of the front end abutting surface of the lid division body within a concave portion recessed toward the inside of the box body, and the locking portion can be locked with a key, and the lid body cannot be opened or closed. did,
It is characterized by this.

According to the present invention, maintenance of cables, etc. inside the inspection box can be easily performed, and there is no need to separately prepare a structural block for attaching the lid for the inspection box, thereby saving labor and cost. Safety is improved because the lid can be easily attached and fixed to the box body, and the lid has an excellent effect in that it cannot be easily opened and closed.

FIG. 2 is an explanatory diagram illustrating the configuration of a box body according to the present invention. FIG. 2 is an explanatory diagram illustrating the configuration of a lid mounting member according to the present invention. FIG. 2 is a schematic configuration diagram (part 1) when the lid attachment member is attached to the box body. FIG. 2 is a schematic configuration diagram (part 2) when the lid attachment member is attached to the box body. FIG. 3 is an explanatory diagram illustrating the configuration of a lid division body according to the present invention. FIG. 1 is a schematic configuration diagram illustrating the configuration of an embodiment according to the present invention.

The present invention will be explained below based on the drawings.
As shown in FIG. 6, the inspection box 1 of the present invention includes a box body 2 with an open top surface, a lid attachment member 3 attached to the box body 2, and a lid placed on the top surface of the box body 2. body 4.

First, the box body 2 will be explained based on the drawings. FIG. 1(a) is a front view of the box main body 2, FIG. 1(b) is a left side view of the box main body 2 from the left side, and FIG. 1(c) is a front view of the box main body 2. FIG. 2 is a plan view of the main body 2 looking down from above.

The box body 2 has a plurality of side walls 5 and has a rectangular tube shape. As shown in FIG. 1(c), this embodiment uses a box body 2 having a rectangular cylindrical shape with four side walls 5.

As understood from FIG. 1(c), a vertical planar surface forming portion 6 that continues in the vertical direction is formed inside the corner portion of the box body 2. The inspection box 1 of the present invention can be used by stacking a plurality of box bodies 2 in the height direction depending on the needs of the installation location. When the plurality of stacked box bodies 2 are firmly fixed to each other, a plate such as a metal plate is placed on the vertical planar surface forming portion 6 at the boundary between the box bodies 2 and the box bodies 2 are fixed together. By fixing the main bodies 2 together, the inspection box 1 can be prevented from collapsing.

A corner convex portion 7 is formed on the outer side of the upper corner of the box main body 2, facing upward and becoming one step higher than the upper end surface of the side wall. The corner convex portion 7 serves as a guide when attaching the cover 4, which will be described later, and also serves to prevent the cover 4 from shifting to the outside of the box body 2 after being attached. Furthermore, a corner concave portion 26 is formed on the outer side of the lower corner of the box main body 2 and is recessed one step lower than the lower end surface of the side wall (see FIGS. 1(a) and 1(b)). This is because when the box main body 2 is stacked in multiple stages as described above, the corner convex portion 7 is fitted and locked into the corner concave portion 26 formed on the outside of the bottom corner. . This makes it easy to stack the box bodies 2 in multiple stages in the height direction without shifting.

Further, a punched portion 8 recessed inside the box body 2 is formed on the outer surface of the side wall 5 of the box body 2. As shown in FIGS. 1(a) and 1(b), the punched portion 8 is provided with recessed lines 25 at predetermined intervals vertically. This recessed line 25 serves as a guideline serving as a cutting reference when adjusting the size of the hole of the punched portion 8 in accordance with the width of the side gutter connected to the box body 2. Note that the punched portion 8 may not have the recess line 25 as shown in FIG. 4.

A pair of handle portions 9 recessed inside the box body 2 are provided on the upper side of the outer surface of the opposing side walls 5 (see FIG. 1). This handle part 9 makes it possible to carry and move the box body 2 manually, and it can be carried even at work sites where large heavy machinery cannot be used.

As understood from FIGS. 1 and 4, a pair of guide recesses 10 are provided on substantially both sides of the upper end surface of the side wall 5, which are recessed slightly below the upper end surface. Further, guide recesses 10 are provided on the lower end surface of the side wall 5 at positions facing the pair of guide recesses 10 provided on substantially both sides of the upper end surface (see FIGS. 1(a) and 1(b)). .

The guide recess 10 is a place where a lid attachment member 3, which will be described later, is attached and fixed, and serves as a mark when attaching the lid attachment member 3. Further, since the guide recess 10 is slightly recessed downward, when the lid mounting member 3 is attached to the guide recess 10, it becomes flush with the upper end surface of the side wall 5. Therefore, when the lid body 4 is placed on the lid body 4, rattling is reduced and it becomes possible to install the lid body 4 in a stable state.

Next, the lid mounting member 3 will be explained based on the drawings. FIG. 2(a) is a front view of the lid mounting member 3, FIG. 2(b) is a left side view of the lid mounting member 3 from the left side, and FIG. ) is a plan view of the lid mounting member 3 looking down from above.
Moreover, FIG. 3 is a schematic configuration diagram when the lid attachment member 3 is attached to the box body 2. As shown in FIG. 3(a) is a front view from the front, and FIG. 3(b) is a plan view looking down from above.

As understood from FIG. 3, the lid attachment member 3 is attached to the side wall of the box body 2 from the upper end surface side to the lower end surface side.
The lid mounting member 3 includes an upper locking portion 11 that locks on the upper outer side of the side wall 5 of the box body 2, a lower locking portion 12 that locks on the lower outer side of the side wall 5, and the upper locking portion 11 that locks on the upper outer side of the side wall 5 of the box body 2. It has a connecting plate part 13 that connects the stop part 11 and the lower stop part 12. A first connecting cylinder 14 extending in the horizontal direction is provided on the distal end side of the upper locking part 11.

The upper locking portion 11 is mounted across the upper end surface of the side wall of the box body 2 from the inner surface to the outer surface of the side wall 5, and its tip locks on the outer surface of the side wall. It is mounted across the lower end surface of the side wall of the box body 2 from the inner surface to the outer surface of the side wall 5, and is configured such that its tip is latched to the outer surface of the side wall (see FIGS. 3(a) and 4). .

By the way, as understood from FIGS. 2(b) and 3(a), a resilient hook portion 15 is formed at the tip of the lower locking portion 12. The resilient hook portion 15 has a folded portion 24 folded back toward the lower locking portion 12 side. That is, a folded part 24 is formed which is folded back at a predetermined angle with respect to the lower locking part 12. The angle of the folded portion 24 is preferably an acute angle, for example, about 30 degrees.

Since the folded portion 24 of the resilient hook portion 15 has a predetermined angle, it has a snap-fit structure, that is, it can be fitted using elasticity. Therefore, when attaching the lid attachment member 3 to the box body 2, the resilient hook portion 15 having the folded portion 24 has the role of firmly fixing the lid attachment member 3 and the box body 2. It is.

Here, a method for attaching the lid attachment member 3 to the box body 2 will be briefly explained.
First, the upper locking part 11 of the lid mounting member 3 is fitted into the upper end surface of the side wall of the box body 2, and the connecting plate part 13 is brought into contact with the inner surface of the side wall 5. At this time, as already explained, the lid attachment member 3 is attached to the guide recess 10 of the box body 2. Then, by pressing the elastic hook portion 15 provided at the tip of the lower locking portion 12 of the lid mounting member 3, the lower locking portion 12 is moved toward the outer surface of the side wall along the lower end surface of the side wall. Since the resilient hook portion 15 is formed at an angle, it can be moved along the lower end surface of the side wall by pressing. After moving to the outer surface of the side wall, the pressed resilient hook portion 15 returns to its original angle due to its elasticity, and the tip of the resilient hook portion 15 is locked to the outer surface of the side wall, thereby attaching the lid body. The member 3 will be attached (see FIG. 2(b) and FIG. 3(a)).

Next, the lid 4 will be explained based on the drawings.
The lid body 4 is constituted by a pair of lid body division bodies 16. The lid division body 16 has a substantially rectangular plate shape, and constitutes the lid 4 by being connected to a pair of lid attachment members 3 attached to opposing side walls 5. When the pair of lid body division bodies 16 are opened and closed, the lid body 4 can be opened and closed in a double-door state.

Here, FIG. 5(a) is a front view of the lid divided body 16 as viewed from the front, and FIG. 5(b) is a left side view of the lid divided body 16 as viewed from the left side. 5(c) is a plan view of the lid division body 16 looking down from above.

A second connecting cylinder 17 is provided on the end surface of the pair of lid body segments 16 opposite to the abutment surface (see FIGS. 5(a) and 5(c)). As understood from FIG. 6, the second connecting tube 17 is provided at a position between the first connecting tubes 14 of the pair of lid attachment members 3, and is provided in the first connecting tube 14. It has a through hole connected to the insertion hole.

As a result, by inserting the connecting rods 23 that penetrate through the respective holes of the first connecting cylinder 14 and the second connecting cylinder 17, the lid body division body 16 can be attached to the pair of lid body attachment members 3. (See Figure 6).

Further, as shown in FIGS. 5(c) and 6, the upper and lower corners on the side where the second connecting cylinder 17 is provided are cut obliquely and chamfered. By aligning this chamfered portion with the corner convex portion 7 of the box body 2 and placing the lid divided body 16 on the box body 2, the lid divided body 16 is easily attached to the lid body mounting member 3. be able to.

By the way, as already explained, the conventional inspection box 1, which has a hand hole, for example, has a problem in terms of security because anyone can easily open and close the lid 4 using a device such as a hook. be.

A locking portion 18 is provided in the lid divided body 16 constituting the lid 4 of the present invention for the purpose of strengthening security (see FIG. 5). The locking portion 18 is formed in a recess 19 provided on the front end abutting surface of the lid divided body 16. The recessed portion 19 is a generally rectangular portion located approximately at the center of the front end abutting surface of the lid body segment 16, and is a portion that is recessed inward of the box body 2. Note that two drain holes 20 are provided at the corners of the recess 19 to drain water such as rainwater (see FIG. 5).
Note that, for example, in the case of a site where there is no need to strengthen security, a lid divided body 16 without the locking portion 18 may be used, as shown in FIG.

As can be understood from FIG. 5(b), the locking portion 18 has an engaging protrusion 21 formed in the vicinity of the tip abutting surface and extending substantially vertically upward from the bottom surface of the recess 19. A locking hole 22 is provided for passing a key through.

That is, when the pair of lid body segments 16 are placed in a state where they are in contact with each other, the recesses 19 formed approximately at the center of the tip abutting surfaces are connected to each other, resulting in a flat state with no step. Then, the locking hole 22 of the locking portion 18 provided in the recess 19 and the locking hole 22 are combined, and by passing a key through the combined locking hole 22 and locking, opening and closing of the lid body division body 16 is regulated. This means that the lid 4 cannot be opened or closed. Note that the key may be, for example, a padlock.

Next, an embodiment of the method for assembling the inspection box 1 of the present invention will be described.
A pair of lid attachment members 3 are attached to guide recesses 10 formed in the upper and lower end surfaces of the side wall 5 of the box body 2. To attach the lid mounting member 3, the upper locking portion 11 of the lid mounting member 3 is fitted into the upper end surface of the side wall of the box body 2, and the connecting plate portion 13 is brought into contact with the inner surface of the side wall 5. Then, by pressing the elastic hook portion 15 provided at the tip of the lower locking portion 12 of the lid mounting member 3, the lower locking portion 12 is moved toward the outer surface of the side wall along the lower end surface of the side wall. After moving toward the outer surface of the side wall, the tip of the resilient hook portion 15 is engaged with the outer surface of the side wall, and the lid body is attached to the box body 2.

A pair of lid attachment members 3 is also attached to the side wall 5 opposite to the side wall 5 to which the pair of lid attachment members 3 are attached. By providing the guide recess 10 on the upper end surface of the side wall 5, there is no need to adjust the mounting position of the lid mounting member 3 each time, and the mounting can be easily performed. It also has the role of preventing the lid mounting member 3 from shifting from side to side.

Next, the lid segment 16 constituting the lid 4 is attached to the pair of lid attachment members 3 attached to the box body 2.
To attach the divided lid body 16, the divided lid body 16 is placed on the top opening of the box body 2. At this time, since the lid division body 16 is chamfered to match the corner convex portions 7 provided at the corners of the box body 2, it is placed in accordance with the corner convex portions 7. By doing so, there is no need for positioning while adjusting the lid divided body 16, and the lid body division body 16 can be placed smoothly.

The second connecting cylinder 17 of the lid divided body 16 is provided between the first connecting cylinders 14 of the pair of lid mounting members 3. As a result, the connecting rods 23 penetrating through the respective holes of the first connecting cylinder 14 and the second connecting cylinder 17 are inserted, thereby attaching the lid body division body 16 to the pair of lid body attachment members 3.

Next, by similarly attaching the lid division body 16 to the pair of lid attachment members 3 attached to the opposing side walls 5, the lid 4 can be opened and closed in a double-door shape.

If security is desired to be strengthened, a lid 4 is used in which a concave portion 19 recessed toward the inside of the box body 2 is formed approximately in the center of the front end abutment surface of the lid segment 16.
Since the locking part 18 is formed in the recessed part 19, the locking hole 22 of the locking part 18 and the locking hole 22 are brought together by bringing the pair of lid body division bodies 16 into contact with each other. By passing a key through the combined locking holes 22 and locking them, opening and closing of the lid divided body 16 is regulated, so that the lid 4 cannot be opened or closed.

In this way, the lid 4 can be easily attached and fixed to the existing block main body 2 anywhere, so there is no need to separately prepare a block for installing the lid 4. For example, in the case of an inspection box 1 that requires depth, the block bodies 2 are stacked in several stages to obtain the required height, and the lid body 4 is attached to the top block body 2 by the above method. It is also possible.

As a result, manufacturing costs can be reduced, and assembly itself can be performed simply and easily since multiple blocks are not used. Additionally, depending on the installation location and the items stored, security can be strengthened, which is an excellent effect.

1 Inspection box 2 Box main body 3 Lid body attachment member 4 Lid body 5 Side wall 6 Vertical planar surface forming part 7 Corner convex part 8 Punching part 9 Hand grip part 10 Guide recessed part 11 Upper locking part 12 Lower locking part 13 Connecting plate portion 14 First connecting tube 15 Resilient hook portion 16 Lid body division body 17 Second connecting tube 18 Locking portion 19 Recessed portion 20 Drain hole 21 Engagement protrusion 22 Locking hole 23 Connecting rod 24 Folded portion 25 Recessed line 26 Corner recess

Claims (4)

A box body having a rectangular cylindrical shape having a plurality of side walls and an open top surface, and at least one pair of lid attachments provided in the width direction of the side walls, which are attached to the box body from the upper end surface side to the lower end surface side of the side walls. and a lid that is placed on the top surface of the box body and attached to the lid attachment member in an openable and closable manner,
The lid mounting member includes an upper locking part whose tip is locked on the outer surface of the side wall that straddles the upper end surface of the side wall of the box main body and is mounted from the inner surface of the side wall toward the outer surface, and a lower end surface of the side wall of the box main body. a lower locking part whose tip is locked to the outer surface of the side wall mounted from the inner surface of the side wall to the outer surface of the side wall, and a connecting plate part that connects the upper locking part and the lower locking part. and a first connecting cylinder extending in the horizontal direction is provided on the distal end side of the upper locking part,
The lid has a second connecting cylinder that is attached between the first connecting cylinders of the pair of lid attachment members and has a through hole that connects to the insertion hole provided in the first connecting cylinder,
A connecting rod is inserted through each hole of the first connecting cylinder and the second connecting cylinder, and is attached to the box body so as to be openable and closable.
An inspection box characterized by:
A box body having a rectangular cylindrical shape having a plurality of side walls and having an open top surface, and at least one pair of lid attachments installed in the width direction of the side walls, which are attached to the box body from the upper end surface side to the lower end surface side of the side walls. and a lid placed on the top surface of the box body and attached to the lid attachment member in an openable and closable manner,
The lid mounting member includes an upper locking part whose tip is locked on the outer surface of the side wall that straddles the upper end surface of the side wall of the box main body and is mounted from the inner surface of the side wall toward the outer surface, and a lower end surface of the side wall of the box main body. a lower locking part whose tip is locked to the outer surface of the side wall that is placed across the side wall from the inner surface to the outer surface, and a connecting plate part that connects the upper locking part and the lower locking part. A first connecting cylinder extending in the horizontal direction is provided on the distal end side of the upper locking part,
The upper locking part of the lid mounting member is fitted into the upper end surface of the side wall of the box body, and the connecting plate part is brought into contact with the inner surface of the side wall, and a resilient hook is provided at the tip of the lower locking part. The lower locking portion can be moved toward the outer surface of the side wall along the lower end surface of the side wall by pressing the lower locking portion, and after the movement, the tip of the front springing hook portion is locked to the outer surface of the side wall and the lid mounting member is attached. Becomes tired,
The lid has a second connecting cylinder that is attached between the first connecting cylinders of the pair of lid attachment members and has a through hole that connects to the insertion hole provided in the first connecting cylinder,
A connecting rod is inserted through each hole of the first connecting cylinder and the second connecting cylinder, and is attached to the box main body so as to be openable and closable.
An inspection box characterized by:
The pair of lid body attachment members are respectively attached to opposing side walls, and the attached lid body attachment members and the lid body division bodies that constitute the lid body are connected, and a lid body constituted by the lid body division bodies. was said to be able to open and close with double doors,
The inspection box according to claim 1 or 2, characterized in that:
A locking portion is provided in a concave portion recessed inwardly of the box body approximately at the center of the front end abutting surface of the lid division body, and the locking portion can be locked with a key, and the lid body cannot be opened or closed. did,
The inspection box according to claim 3, characterized in that:

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