JPH0349023Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a handle device that allows a sealed door to be used both to open to the left and to open to the right.

"Prior art" Air conditioners installed in the machine room, rooftop, or outdoors of a building, or the housing (partition wall) surrounding power distribution equipment, may be equipped with an inspection door for inspection and maintenance of the air conditioners inside. . This type of inspection door is used to protect the internal equipment from the effects of wind and rain if it is installed outdoors, or to isolate the internal equipment from the influence of the air outside the housing if it is installed indoors. In addition, it is common for inspection doors to have a sealed structure. And an inspection door with this sealed structure,
In other words, in the case of an airtight door, the airtight door is rotatably attached to the door frame attached to the opening in the partition wall using a hinge, and a handle device for locking the airtight door is provided on the opening side of the airtight door. Press the sealed door against the door frame through the packing material attached to the door frame or sealed door, turn the handle, and press the locking claw attached to one end of the support shaft of the handle against the back of the door frame to close the sealed door. A structure that locks is common.

``The problem that the invention aims to solve'' By the way, normally, this type of sealed door is configured to open either to the left or to the right, depending on the installation location, specifications, or scale. A sealed door that matches the opening direction specified in the blueprints is prepared, delivered to the site, and installed, but due to incorrect instructions or lack of thorough communication, a sealed door with a different opening direction is installed at the site. There were times when I had to bring it in. In this case, a new sealing door with a different opening direction must be brought in, or in some cases, a new sealing door with a different opening direction must be manufactured, which requires a great deal of effort. Furthermore, manufacturing two types of sealed doors, one that opens to the right and one that opens to the left, has the problem of complicating the manufacturing process and complicating product management.

``Purpose of the invention'' This invention was made in view of the above-mentioned circumstances, and it allows a single sealed door to be used for both left and right openings, as well as a handle that simplifies the manufacturing process and facilitates product management. The purpose is to provide equipment.

"Means for Solving Problems" The present invention is a handle device provided on a sealed door that is hinged to a door frame, and is rotatably provided on the opening side of the sealed door by penetrating the sealed door. It consists of a handle shaft, a main handle body attached to one end of the handle shaft on the front side of the sealed door, and a sub-handle body attached to the other end of the handle shaft. A first locking pawl and a second locking pawl that abut against and prevent rotation of the sealed door are respectively protruded from the base of the auxiliary handle body or the main handle body, facing in opposite directions, and further, The distal end of the handle body having the first locking claw and the second locking claw contacts the side surface of the door frame when the airtight door is locked by the first locking claw to prevent rotation of the handle device. A first regulating piece parallel to the first regulating claw and a second regulating piece parallel to the second regulating claw are each protruded.

"Function" Regardless of whether the closed door opens in the left or right direction, the door frame is attached to the partition with the door frame upside down and left and right reversed, and either the first locking claw or the second locking claw is opened. If one side is used to lock the sealed door, the sealed door can be used to open to the left or to the right by using one type of door frame, sealed door, main handle, secondary handle, and handle shaft. It becomes like this.

``Embodiment'' Figures 1 to 5 show an example of the present invention.
This shows a housing (partition wall) that surrounds an air conditioner or power distribution equipment installed in a machine room, etc., and this partition wall 10 is constructed by lining a metal partition plate 10a with a heat insulating material 10b such as glass wool. ,
An opening 10c is formed at a predetermined position of the partition wall 10 for attaching a hermetic door 11, which will be described later.

A door frame 12 and a locking plate 13 are provided at the opening edge of the partition wall 10, and a left-opening airtight door 11 is installed in the opening 10c.

The door frame 12 includes a mounting frame 12A having a substantially rectangular shape from the front, which is slightly smaller than the opening 10c of the partition wall 10, and a fixed frame extending perpendicularly to the edge of the mounting frame 12A on one side in the depth direction of the mounting frame 12A. 12B, and a holding frame 12D extending on the other side in the depth direction of the mounting frame 12A, perpendicular to the edge of the mounting frame 12A and facing in the opposite direction to the direction of the tip of the fixed frame 12B;
It consists of claw plates 12E integrated with each of the outer circumferential surfaces of the mounting frame 12A. The fixed frame 12B has a protruding edge 12b at a right angle to the distal edge thereof.
A holding frame 12b is formed opposite to the mounting frame 12A.
A holding edge 12d is provided at right angles to the tip edge of the
is formed facing the mounting frame 12A, and the holding frame 1
2D, the holding edge 12d, and the mounting frame 12A form a storage groove 12a.
A packing material 14 is attached to a. The door frame 12 is laterally and vertically symmetrical, and can be attached to the opening 10c of the partition wall 10 even if the door frame 12 is oriented vertically or horizontally. Further, claw portions 12e each having an L-shaped cross section are formed on the claw plate 12E by cutting and raising a portion of the claw plate 12E at predetermined intervals in the length direction,
The tip of the claw portion 12e is directed toward the fixed frame 12B.

The locking plate 13 has an L-shaped side surface consisting of a support plate 13a and a locking plate 13b.
Screw holes are formed at appropriate positions on the support plate 13b at appropriate distances in the longitudinal direction of the support plate 13b, and bolts 16 are screwed into each of these screw holes, while the locking plate 13b has the A square locking hole 13c is formed corresponding to the screw hole. The locking holes 13c are sized to allow the claw portions 12e to be inserted therethrough, and the spacing between the locking holes 13c is the same as that of the claw portions 12e.

The door frame 12 has the sealing material 15 and the protruding edge 12b in contact with the front side of the opening periphery of the partition plate 10a, and the mounting frame 12A facing the inner peripheral surface of the opening 10c of the partition wall 10. It is inserted into the opening 10c. Moreover, each locking plate 13 passes the claw portion 12e of the door frame 12 through each locking hole 13c,
It is provided around the door frame 12 by hooking the claw portion 12e onto the locking plates 13b and 13e. And furthermore,
The door frame 12 presses the support plate 13a against the heat insulating material 10b around the opening 10c, and further presses each bolt 16.
By penetrating and pressing the heat insulating material 10b onto the back surface of the partition plate 10a, the partition plate 10a is held between the fixed frame 12B and each bolt 16 and attached to the partition wall 10.

On the other hand, the airtight door 11 includes a shallow box-shaped door body 11A made of a metal plate, and a heat insulating material 11B such as glass wool filled in the door body 11A.
It is composed of a metal back plate 11c provided to cover the opening surface of the door body 11A, and the door body 11A is
A mounting frame 1 is installed inside the mounting frame 12A of the door frame 12.
2A, and is attached to the fixed frame 12B of the door frame 12 by a pair of upper and lower hinges 17 so as to be horizontally rotatable. A groove 11a is formed on the peripheral edge of the back surface of the airtight door 11 over the entire circumference of the back surface of the door 11, and the peripheral edge of the back plate 11 and the door body 11A are formed on the outer peripheral side of the groove 11a. The convex edge 1 is formed by the peripheral edge of
1b is formed, and the convex edge 11b is adapted to come into pressure contact with the packing material 14 of the door frame 12 when the opening 10c is closed by the door 11.

Further, A in the figure indicates a handle device for locking the sealed door 11. This handle device A
are provided at predetermined positions above and below the ends of the sealing door 11 on the side where the sealing door 11 is hinged to the door frame 12, respectively. The handle device A includes a handle shaft 20 that penetrates the sealed door 11 in the thickness direction thereof, a reinforcing cylinder 21 provided inside the sealed door 11 through the handle shaft 20, and a reinforcing cylinder 21 that passes through the sealed door 11 in the thickness direction. A main handle body 24 is attached to one end of the handle shaft 20 on the front side of the door 11 via a ring packing 22 and a washer 23, and a main handle body 24 is attached to the other end of the handle shaft 20 on the back side of the sealed door 11 via a ring packing 25. and a sub-handle body 26 attached thereto. The handle shaft 20 is inserted through the sealed door 11 so as to be rotatable in its circumferential direction, and the main handle body 24
The main handle body 24 and the sub handle body 26 are fixed to the handle shaft 20 so as to face in the same direction, and the main handle body 24 and the sub handle body 26 rotate together with the handle shaft 20.

The sub-handle body 26 includes a base 26A coupled to the handle shaft 20 and a lever portion 26B projecting from the base 26A. Then, the protruding edge 11b of the hermetic door 11 is brought into pressure contact with the frame-side packing material 14, and the opening 10a is formed on the base 26A of the hermetic door 11.
In the closed state, by rotating the sub-handle body 26 and directing the tip of the sub-handle body 26 downward, a first locking pawl 26a that can come into contact with the holding frame 12D of the door frame 12 is formed. At the same time, the base 26A has a second locking pawl 2 facing in the opposite direction to the first locking pawl 26a and having the same shape as the first locking pawl 26a.
6b is formed. In addition, the sub handle body 26
A first regulating piece 26c parallel to the first locking pawl 26a and a second regulating piece 26d parallel to the second locking pawl 26b are protruded from the distal end thereof. These regulating pieces 26c and 26d have similar shapes, and when the sub-handle body 26 is facing downward, the first regulating piece 26c comes into contact with the holding edge 12d of the door frame 12 and prevents the sub-handle body 26 from rotating. It is becoming regulated.

To attach the door frame 12 configured as described above to the partition wall 10, first, open the opening 10a of the partition wall 10.
The mounting frame 12A of the door frame 12 is inserted into the opening 10a, and the mounting frame 15 is brought into contact with the surface of the partition plate 10a around the opening 10a.
Next, one locking plate 13 is prepared, and the door frame 1
The locking plate 13b of the locking plate 13 is inserted from the back side of the partition wall 10 into the gap between the claw portion 12e on the side of the door frame 12 and the heat insulating material 10b on the side of the door frame 12, and then,
Each claw portion 1 is inserted into each locking hole 13c of the locking plate 13b while slightly crushing the heat insulating material 10b by the support plate 13a.
2e and lock the locking plate 13b with the claw portion 12e. Next, each bolt 16 is rotated so that the tip of the bolt 16 passes through the heat insulating material 10b, and is brought into pressure contact with the back surface of the partition plate 10a as shown in FIG. 1, thereby completing the mounting of the locking plate 13. Once the installation of one locking plate 13 is completed, the other three
The two locking plates 13 are installed in the same manner as described above, and the installation of the door frame 12 is completed.

In order to close the opening 10c with the sealing door 11 provided as described above, the main handle body 24 grasps the sub handle body 26 and rotates them slightly.
Close the airtight door 1 with the locking claw 26a facing downward.
1, the convex edge 11b of the airtight door 11 is brought into pressure contact with the packing material 14 of the door frame 12, and the first locking claw 26a is positioned on the rear side of the holding frame 12D of the door frame 12, and then the main handle body 24 is closed. Alternatively, the sub handle body 26 is slightly rotated again to direct these tips directly downward. This rotation is continued until the first regulating piece 26c of the sub-handle body 26 comes into contact with the holding edge 12d of the door frame 12 and prevents the sub-handle body 26 from rotating. This allows the first locking pawl 26a to be attached to the holding frame 12 of the door frame 12.
The opening 10c can be closed by the sealing door 11 being brought into contact with the back surface of the sealing door 11.

On the other hand, in the above explanation, the sealed door 11 is configured to open to the left as shown in FIG. 1, but depending on the installation location, the sealed door 11 may need to be configured to open to the right. be. In this case, as shown in FIG.
and are attached to the partition wall 10 upside down and horizontally. In this case, the auxiliary handle body 26 is turned downward, and the auxiliary handle body 26 is connected to the second regulating piece 26.
d rotates until it comes into contact with the holding edge 12d of the door frame 12, the second locking pawl 26b is rotated until it comes into contact with the holding edge 12d of the door frame 12.
By coming into contact with 2D, the airtight door 11 can be locked.

That is, the handle device A and the door frame 1 configured as described above
2, the sealed door 11 can be used to open to the left or to the right. Therefore, it is no longer necessary to manufacture two types of sealed doors, one for opening on the left and one for opening on the right, which simplifies the manufacturing process and reduces costs. In addition, it is no longer necessary to separately manage sealed doors for left-opening and right-opening, and there is no risk of mistaking the left-opening and right-opening sealed doors when transporting the product to the site. It also becomes easier to manage.

In addition, in the present invention, each of the above-mentioned locking claws 26
a, 26b reach the optimum position for locking the sealed door 11, and the first regulating piece 26c protrudes from the tip of the handle body having the respective locking claws 26a, 26b.
Or, the second regulating piece 26d is attached to the holding edge 12 of the door frame 12.
d, and further rotation of the handle body is prevented. As a result, the sealed door 11 is reliably locked.

"Effects of the invention" As explained above, the present invention has a handle shaft that is rotatably provided through the sealed door on the side opposite to the hinge joint side of the sealed door, and a main handle body on the front side of the handle shaft. In addition, a sub-handle body is provided on the other side, and a first locking pawl is provided on the main handle body or the sub-handle body for abutting against the door frame and locking the sealing door when the partition wall opening by the sealing door is closed. Since the second locking pawl and the second locking pawl are formed facing in opposite directions, whether the sealed door is installed to open to the left or to the right, it is possible to use either one of the locking pawls. A sealed door can be locked. Therefore, there is no need to manufacture two types of hermetic doors, one for opening on the left and one for opening on the right, which simplifies the manufacturing process and reduces the cost of the hermetic door. In addition, since it is better to form only one type of sealed door, there is no need to confuse left-opening type and right-opening type when transporting to the site, and product management becomes easier.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention. Figure 1 is a plan sectional view showing how the sealed door and door frame are attached to the partition wall, and Figure 2 is a cross-sectional view of the sealed door and door frame. A front view, FIG. 3 is a plan sectional view of the main part, FIG. 4 is a front view of the main part, FIG. 5 is a side view of the main part, and FIG. 6 is a plan sectional view showing another mode of use of the above embodiment. It is a diagram. 10... Partition wall, 10c... Opening, 11... Sealed door, 12... Door frame, A... Handle device, 20
...Handle shaft, 24...Main handle body, 26...
...Auxiliary handle body, 26A...Base, 26a...First locking claw, 26b...Second locking claw, 26c...First regulation piece, 26d...Second regulation piece.

Claims (1)

[Scope of utility model registration request] A handle device that is hinged to a door frame provided in an opening formed in a partition wall and is provided on a sealed door that opens and closes the opening, the handle device penetrating the sealed door on the side opposite to the hinged side of the sealed door. a handle shaft that is rotatable, a main handle body attached to one end of the handle shaft on the front side of the sealed door, and a secondary handle body attached to the other end of the handle shaft on the back side of the sealed door. The base of the sub-handle body or the base of the main handle body connected to the handle shaft is configured to abut against the back surface of the door frame when the opening is closed by the hermetic door to lock the hermetic door. A first locking pawl is provided to protrude perpendicularly to the handle shaft, and a second locking pawl that faces in the opposite direction to the first locking pawl is protruded from the base, and the first locking pawl and A first restriction piece is provided at the tip of the handle body having a second locking pawl and comes into contact with a side surface of the door frame when the airtight door is locked by the first locking pawl to restrict rotation of the handle device. A handle device for a sealed door, characterized in that a second regulating piece and a second regulating piece are respectively provided in a protruding manner.