Fireplug box

Abstract

To provide a fireplug box which can adjust distortion caused in a door frame with the door frame to which a door panel is coupled fitted to a box body.SOLUTION: A fireplug box includes: a box body 2 which is provided with a bottom plate 2c and a side plate 2d and whose front surface is open; a door frame 3 connected to the box body 2; and a door panel 4 freely openably / closably fitted to the door frame 3. The box body 2 is provided with a first flange part 2a protrudingly provided on the side plate 2d. The door frame 3 includes: a frame plate part 3c arranged opposite on the side plate 2d across a gap; a second flange part 3a arranged opposite the first flange part 2a and connected to the first flange part 2a via fasteners 5; and a peripheral edge part 3d continuously provided on the frame plate part 3c so as to extend outward from the side plate 2d and contact a wall surface W. The first flange part 2a and the second flange part 3a are configured so that a relative position in a direction along opposite surfaces thereof is adjustable within a prescribed range via the fasteners 5. The frame plate part 3c has female screw parts 7 in each of which a male screw member 6 that makes it possible to adjust a gap between the frame plate part 3c and the side plate 2d can be screwed.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a fire hydrant box. [Background technology]

[0002] 1 to 4, a conventional fire hydrant box 1A includes a box body 2 with an open front, a door frame 3 fixed to the inner peripheral edge of the opening side of the box body 2, and a door panel 4 that is freely opened and closed and is provided on the door frame 3 to open and close the opening of the box body 2 (Patent Document 1, etc.). In some cases, a plurality of door panels are provided.

[0003] In this way, a fire hydrant box having a structure in which the door panel 4 is not directly connected to the box body 2, but is connected to the box body 2 via the door frame 3, is installed in a building by setting the box body 2 within an opening in the wall W of the building in accordance with the construction process of the building, and after the decoration of the wall is completed, the door frame 3 with the door panel 4 connected thereto is inserted into the opening of the box body 2 from the front, and the door frame 3 is fixed to the box body 2 with fasteners 5 consisting of male threads 5a such as screws and female threads 5b such as nuts.

[0004] That is, the door panel 4 is attached to the box body 2 by fitting the door frame 3 to which the door panel 4 is connected into the inner peripheral edge of the opening side of the box body 2 which is installed in an embedded state in the wall W of a building, opposing the first angle-shaped flange 2a on the inner peripheral edge of the opening side of the box body 2 to the second angle-shaped flange 3a on the inner peripheral edge of the door frame 3, aligning the positions of the holes 2b, 3b formed at predetermined intervals in the first flange 2a and the second flange 3a, and then inserting male screws 5a into each of the holes 2b, 3b in the first flange 2a and the second flange 3a and tightening the female screws 5b into each male screw 5a, thereby attaching the door frame 3 with the door panel 4 to the box body 2. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2010-104625 A Summary of the Invention [Problem to be solved by the invention]

[0006] After the door frame 3 with door panel 4 is fitted into the inner peripheral edge of the opening side of the box body 2, the door frame 3 and the box body 2 are connected by screwing the fasteners 5, and the door panel 4 is opened to allow the screwing work to be performed. However, since the door frame 3 of a fire hydrant box is made from a processed steel plate with a thickness of, for example, about 1.6 mm, when the door panel 4 is opened, the door frame 3 may deform due to the weight of the door panel 4 depending on the size of the box body 2. In that case, there is a problem that the gap between the door frame 3 and the door panel 4 is not uniform after the door frame 3 is attached to the box body 2.

[0007] In addition, such deformation of the door frame 3 can occur during transportation or movement, and can also occur when the door frame 3 is stored for a long period of time in a position where it is not placed parallel to the floor with the door panel 4, but is leaned against a wall or the like.

[0008] In order to prevent distortion of the door panel 4 that occurs during installation, a platform that matches the height from the floor to the bottom of the door frame 3 is required. If the platform is too high or too low, it will cause further distortion of the door frame 3, so it is necessary to prepare a platform of the appropriate height. However, if there are a large number of platforms, it is necessary to have one of the correct height for each one, which is very time-consuming, so in the past, personnel were assigned just to support the door frame 3 with the door panels 4 connected to it.

[0009] Furthermore, when installing the door frame 3, gaps (joints) may be provided between the door frame 3 and the surrounding wall finishing materials such as panels and tiles that are installed on the surface of the wall W, maintaining a certain dimension. At this time, the width dimensions of the joints on the top, bottom, left and right of the panels or tiles are made the same to avoid losing the visual balance (this is called joint alignment). At this time, if the door frame 3 is distorted, the width dimensions of the joints on the top, bottom or left and right of the door frame 3 will not be constant, and adjustments will also be necessary.

[0010] However, there is no clear method for adjusting such joint widths to make them even. For example, with the door panel attached to the door frame, the upper end of the door frame opposite the free end of the openable door panel is held in place by hand while the lower end of the door frame is pulled towards the front or pushed inwards to make an adjustment; however, because the amount of force required varies depending on the state of distortion, this is a task that relies on the worker's intuition and experience, and the worker must repeat the process while checking the state many times.

[0011] Another problem was that even if there was no distortion in the door frame 3, if the box body 2 was fixed into the wall at an angle to the left or right, the door frame 3 would be installed at an angle in order to fit along the boards on the four sides of the box body 2, resulting in the problem that the width dimensions of the joints on the four sides mentioned above would not be consistent.

[0012] In this case, if you try to install the four sides of the door frame 3 vertically and horizontally, it is necessary to tilt the door frame 3 left and right and fix it in place, which requires a worker to hold the door frame 3 and support it in the appropriate position while adjusting the tilt up, down, left and right, and a worker to fix the door frame 3 to the box body 2 with screws, so the work cannot be done by one person.

[0013] Furthermore, the vertical adjustment of the door frame 3 relative to the box body 2 is carried out by installing an appropriate spacer in the gap between the inner bottom plate of the door frame and the outer side plate of the box body. However, if the thickness of the spacer needs to be changed during the adjustment work, the front of the gap is hidden by the door frame 3, so the spacer cannot be increased or decreased with the door frame 3 attached.

[0014] This required the door frame 3 to be removed from the box body 2 in order to change the height of the spacer, which required a great deal of effort and time.

[0015] Therefore, the main object of the present invention is to provide a fire hydrant box that makes it possible to adjust distortion that occurs in the door frame while the door frame to which the door panel is connected is attached to the box body.

[0016] In addition, the present invention aims to provide a fire hydrant box that allows for simplified adjustment of the mounting position of the door frame relative to the box body. [Means for solving the problem]

[0017] In order to achieve the above object, the fire hydrant box of the present invention comprises a box body having a bottom plate at the rear and side plates surrounding the bottom plate, an open front, and embedded in a wall surface of a building, a door frame connected to the box body, and a door panel attached to the door frame so as to be freely opened and closed, the box body having a first flange protruding from an inner peripheral surface of the side plate, the door frame having a frame plate portion disposed opposite the side plate with a gap therebetween, and a first flange connected to the frame plate portion and extending in the direction of the arrow A. The box body includes a second flange portion arranged opposite the flange portion and connected to the first flange portion via a fastener, and a peripheral portion connected to the frame plate portion so as to extend outward from the side plate of the box body and abutting the wall surface, wherein the first flange portion and the second flange portion are configured so that their relative positions in a direction along their opposing surfaces can be adjusted within a predetermined range via the fastener, and the frame plate portion has a female screw portion into which a male screw member can be screwed to adjust the distance between the frame plate portion and the side plate. Effect of the Invention

[0018] According to the present invention, the distance between the door frame and the side panel of the box body can be adjusted by screwing a male screw member into a female screw portion provided on the door frame, thereby making it possible to adjust the position of the door frame relative to the box body even when the door frame is attached to the box body via a fastener. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a partially omitted front view showing a box body of a conventional fire hydrant box. [Diagram 2] FIG. 1 is a partially omitted front view showing a conventional fire hydrant box with a door frame attached thereto. [Diagram 3] 3 is a cross-sectional view taken along line III-III in FIG. 2, showing a state in which the door panel is attached to the door frame. [Figure 4]4 is a cross-sectional view taken along line IV-IV in FIG. 2, showing a state in which the door panel is attached to the door frame. [Diagram 5] FIG. 1 is a front view of one embodiment of a fire hydrant box according to the present invention, showing a state in which the door panel is open. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. 5, with some parts omitted. [Figure 7] 7 is a cross-sectional view taken along line VII-VII of FIG. 5, with some parts omitted. [Figure 8] FIG. 6 is a perspective view showing the state where the door panel of the fire hydrant box in FIG. 5 is removed. [Figure 9] 9 is an enlarged perspective view showing a part (portion indicated by broken line IX) of FIG. 8 in an enlarged manner, partially cut away. [Figure 10] FIG. 1 is a front view showing a schematic state of a fire hydrant box according to the present invention in use. [Figure 11] FIG. 1 is a front view showing a schematic state of a fire hydrant box according to the present invention in use. [Figure 12] FIG. 1 is a front view showing a schematic state of a fire hydrant box according to the present invention in use. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] An embodiment of a fire hydrant box according to the present invention will be described below with reference to Fig. 5 to Fig. 12. Note that the same or similar components are denoted by the same reference numerals throughout all the drawings and all the embodiments, including the prior art.

[0021] The fire hydrant box 1 comprises a box body 2 with an open front and embedded in a wall W of a building, a door frame 3 connected to the box body 2, and a door panel 4 attached to the door frame 3 so as to be freely opened and closed. Fig. 5 is a front view of the fire hydrant box 1 with the door panel 4 open, Fig. 6 is a cross-sectional view showing a partially cutaway section taken along line VI-VI in Fig. 5, Fig. 7 is a cross-sectional view showing a partially cutaway section taken along line VII-VII in Fig. 5, Fig. 8 is a perspective view showing the fire hydrant box in Fig. 5 with the door panel removed, and Fig. 9 is an enlarged view showing a portion of Fig. 8 (the portion surrounded by a dotted line frame).

[0022] The box body 2, door frame 3, and door panel 4 can be formed, for example, from surface-treated steel plates having a thickness of 1.6 mm. The box body 2 has a bottom panel 2c at the rear and side panels 2d surrounding the bottom panel 2c. The bottom panel 2c can be rectangular. The side panels 2d can be welded to the bottom panel 2c so as to surround the four sides of the bottom panel 2c.

[0023] A first flange 2a protrudes from the inner peripheral surface of the side plate 2d. The first flange 2a can be provided perpendicular to the side plate 2d. In the illustrated example, the first flange 2a is provided on the left, right and upper side plates 2d of the box body 2, but is not provided on the lower side plate 2d of the box body 2. Although not illustrated, the first flange 2a can be provided on the inner peripheral surface of the lower part of the box body 2, or can be provided only on the left and right inner peripheral surfaces of the fire hydrant box 1. The first flange 2a can be provided integrally with the side plate 2d by bending. The first flange 2a can also be provided on the side plate 2d by welding.

[0024] The door frame 3 includes a frame plate portion 3c arranged to face the side plate 2d with a gap therebetween, a second flange portion 3a connected to the frame plate portion 3c and arranged to face the first flange portion 2a and connected to the first flange portion 2a via a fastener 5, and a peripheral portion 3d connected to the frame plate portion 3c so as to extend outward from the side plate 2d of the box body 2 and abut against the wall W of the building. The frame plate portion 3c and the peripheral portion 3d can be provided on the entire inner periphery of the door frame 3. The second flange portion 3a can be provided only at a location facing the first flange portion 2a, that is, only on the left and right and upper portions in the illustrated example. When the first flange portion 2a is provided around the entire inner periphery of the box body 2, the second flange portion 3a can be provided around the entire periphery of the top, bottom, left and right accordingly. The door frame 3 is formed so that a part of the frame plate portion 3c and the second flange portion 3a are loosely inserted into the box body 2, and therefore the frame plate portion 3c is formed smaller than the box body 2. In this specification, the directions of up, down, left, right, front and back are intended to be the directions when the fire hydrant box is installed.

[0025] The fastener 5 can have a male screw 5a and a female screw 5b. The first flange 2a and the second flange 3a are respectively formed with through holes 2b, 3b through which the male screw 5a passes. The through holes 2b, 3b are formed to be larger than the diameter of the shaft of the male screw 5a. The through holes 2b, 3b can be elongated holes. Therefore, as shown in the illustrated example, the male screw 5a can be a screw, the female screw 5b can be a nut, and the screws can be fastened by passing washers 5c, 5d through them. Instead of the washers, flanged screws or flanged nuts can be used.

[0026] In the illustrated example, both through holes 2b and 3b are formed larger than the diameter of the shaft of the male screw 5a, but only one of the through holes 2b and 3b may be formed larger than the diameter of the shaft of the male screw 5a, and the other through hole may be a female screw hole and a nut may be omitted, or a nut may be welded instead of the female screw hole.

[0027] As described above, by making either or both of the through holes 2b and 3b loose holes larger than the outer axial diameter of the male screw 5a, the first flange 2a and the second flange 3a are configured so that the relative positions of the first flange 2a and the second flange 3a in the direction along their opposing surfaces can be adjusted within a predetermined range via the fastener 5. This makes it possible to adjust the position of the door frame 3 relative to the box body 2 in the up-down and left-right directions.

[0028] In the illustrated example, the fasteners 5 are provided at a total of six locations: two locations on the top and bottom sides of the first flange 2a and the second flange 3a, which are located on the left and right sides and extend vertically, and two locations on the left and right sides of the first flange 2a and the second flange 3a, which are located at the top and extend horizontally; however, the number and locations of the fasteners 5 are not limited to the locations in the illustrated example and can be provided at any appropriate locations.

[0029] The frame plate portion 3c has a female screw portion 7 into which a male screw member 6 can be screwed to adjust the distance between the frame plate portion 3c and the side plate 2d. The female screw portion 7 can be a female screw hole formed in the frame plate portion 3c or a nut (not shown) welded and fixed to the frame plate portion 3c. The male screw member 6 can be screwed into the female screw portion 7 and its tip can be brought into contact with the side plate 2d. The male screw member 6 has a length equal to or greater than the distance between the box body 2 and the frame plate portion 3c of the door frame 3.

[0030] The female screw portions 7 are provided at eight locations in total, on both upper and lower sides of the frame plate portions 3c arranged on the left and right and extending in the vertical direction, and on both left and right sides of the frame plate portions 3c arranged on the left and right and extending in the horizontal direction, and are preferably provided near the corners of the door frame 3. The number and positions of the female screw portions 7 can be set as appropriate.

[0031] The door panel 4 is rotatably connected to pins 4a provided on the top and bottom of the door frame 3. The door panel 4 can also be connected to the door frame 3 via a hinge such as a slide hinge.

[0032] The fire hydrant box 1 having the above-mentioned configuration is assembled and installed on the wall surface of a building in the following manner.

[0033] First, the box body 2 is inserted into an opening for installing a fire hydrant box formed in the wall of a building, and the box body 2 is attached and fixed to the building structure (not shown) on the back side of the wall W.

[0034] Next, the frame plate portion 3c of the door frame 3 to which the door panel 4 is connected is inserted into the opening on the front side of the box body 2, and the peripheral portion 3d of the door frame 3 is brought into contact with the surface of the building's wall W. With the peripheral portion 3d in contact with the surface of the building's wall W, the fasteners 5 are used to connect the first flange portion 2a and the second flange portion 3a, and the fasteners 5 are tightened to temporarily fix the door frame 3 to the box body 2. This temporary fixation is performed with a fastening force that allows the door frame 3 to move up and down and left and right, but does not allow the door frame 3 to move back and forth.

[0035] In the temporarily fastened state, the position of the door frame 3 can be changed or the inclination can be corrected by adjusting the degree of screwing of the male screw member 6 into the female screw portion 7 in the following procedure.

[0036] The height position of the door frame 3 is adjusted by adjusting the degree to which the male screw member 6 is screwed into the female screw portion 7 provided on the frame plate portion 3c extending laterally at the bottom of the door frame 3, so that the lower peripheral portion 3d of the door frame 3 is horizontal.

[0037] When the door frame 3 is temporarily fixed to the box body 2, if the peripheral portion 3d is distorted vertically as shown in Fig. 10, the degree of screwing of the male screw members 6 into the four female screw portions 7 provided on the frame plate portion 3c extending laterally at the upper and lower parts is adjusted in the direction of the arrow in Fig. 10 so that the upper and lower sides of the peripheral portion 3d are horizontal. At this time, since there are joints 8 between the peripheral portion 3d and the tile T attached to the wall W, the width of the joints 8 at the top and bottom of the peripheral portion 3d is adjusted to be equal. Note that in Fig. 10, the distortion is exaggerated for ease of understanding, and the second flange portion 3a and the fasteners 5 are omitted.

[0038] When the door frame 3 is temporarily fixed to the box body 2, if the peripheral portion 3d is tilted (inclined) up, down, left, or right as shown in Fig. 11, the degree of screwing of the male screw members 6 screwed into the eight female screw portions 7 provided on the frame plate portions 3c on the top, bottom, left, and right sides can be adjusted in the direction shown by the arrows in Fig. 11 to eliminate the inclination (incline) of the peripheral portion 3d. At this time, the adjustment is made so that the joints 8 around the peripheral portion 3d of the door frame 3 are uniform. Note that in Fig. 11, the inclination is exaggerated for ease of understanding, and the second flange portion 3a and the fastener 5 are omitted.

[0039] When the door frame 3 is temporarily fixed to the box body 2, if the box body 2 is inclined as shown in FIG. 12, the inclination (falling) of the peripheral portion 3d can be eliminated by adjusting the degree of screwing of the male screw member 6 screwed into the four female screw portions 7 provided at the top and bottom positions of the left and right frame plate portions 3c in the direction shown in FIG. 12. If the vertical position of the peripheral portion 3d needs to be adjusted, the degree of screwing of the male screw member 6 screwed into the two female screw portions 7 provided at the left and right positions of the lower frame plate portion 3c is adjusted. The adjustment is made so that the joints 8 around the peripheral portion 3d of the door frame 3 are uniform. Note that in FIG. 12, the inclination is exaggerated for ease of understanding, and the second flange portion 3a and the fastener 5 are omitted.

[0040] As described above, the position and posture of the peripheral portion 3d are adjusted, and the width of the joints 8 around the peripheral portion 3d is adjusted so as to be uniform, and then the fasteners 5 are tightened to fix the door frame 3 to the box body 2.

[0041] As described above, the fire hydrant box 1 has a door frame 3 connected to the box body 2 embedded in the wall of a building with fasteners 5, and the position of the door frame 3 in the up, down, left and right directions can be easily adjusted and fixed relative to the box body 2.

[0042] The present invention should not be construed as being limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention. [Explanation of symbols]

[0043] 1 Fire hydrant box 2 Box body 2a 1st collar 2c bottom plate 2d side plate 3 Door Frame 3a Second collar 3c Frame plate part 3d Periphery 4 Door plate 5 Fasteners 6 Male screw member 7 Female thread

Claims

[Claim 1] A box body having a bottom plate on a rear surface and side plates surrounding the bottom plate, an opening on a front surface, and configured to be embedded in a wall surface of a building; A door frame connected to the box body; A door plate that is attached to the door frame so as to be freely opened and closed, The box body includes a first flange portion protruding from an inner peripheral surface of the side plate, The door frame includes a frame plate portion disposed opposite the side plate with a gap therebetween, a second flange portion connected to the frame plate portion and disposed opposite the first flange portion and connected to the first flange portion via a fastener, and a peripheral portion connected to the frame plate portion so as to extend outward from the side plate of the box body and abut against the wall surface, The first flange portion and the second flange portion are configured so that their relative positions in a direction along their opposing surfaces can be adjusted within a predetermined range via the fastener, The frame plate portion has a female screw portion into which a male screw member can be screwed to adjust the distance between the frame plate portion and the side plate. Fire hydrant box.

Images