JPH0428159Y2 - - Google Patents

Description

[Detailed description of the invention] (Target of the invention/Field of industrial application) The present invention relates to a soundproof wall structure that blocks the propagation of noise generated indoors or outdoors into the outdoors or indoors, and particularly relates to walls, ceilings, etc. This invention relates to a soundproof wall structure composed of a combination of a plurality of soundproof panels.

(Prior art) Conventionally, in this type of soundproof wall structure, a bracket for joining the panels is attached to each panel in order to join the soundproof panels together, and the brackets are connected to each other by bolts and nuts or by welding. Previously, the panels were joined together, which made the joining work on site extremely troublesome and took time to disassemble.Particularly when welding was used, disassembly was extremely difficult and there was a risk of damaging the panels. There were many inconveniences.

(Purpose of the invention) In view of the above, the main purpose of the present invention is to make it easy to connect and disassemble the panels, and the other purpose is to make each soundproof panel have a simple and robust structure. be.

(Structure of the invention) The soundproof wall structure of the present invention which can achieve the above object is a soundproof wall structure constructed by combining a plurality of soundproof panels, each soundproof panel having flanges on the four peripheral edges of the exterior board body. It consists of a box-shaped exterior board with a protruding box, and a sound-absorbing material loaded into the box-shaped exterior board, and the flange of one adjacent soundproof panel and the flange of the other soundproof panel are connected to each other. Both soundproof panels are joined by a tightening fitting that is removably interposed between both soundproofing panels with a flange in between, and this tightening connecting fitting is pivotally supported within one of the soundproofing panels and has a rotating operation part. A rotating shaft, an eccentric ring integrally provided on the rotating shaft, a base end fitted onto the eccentric ring so as to be relatively rotatable, a hook formed at the tip end, and opening in the flange of one of the soundproof panels. A clamping arm that can be retracted and retracted through a slit formed in the soundproofing panel, and a locking pin that is provided in the other soundproofing panel and whose hook protrudes through the slit that opens in the flange of the other soundproofing panel and is latched. It is characterized by this.

(Example) Next, an example in which the soundproof wall structure of the present invention is implemented as a soundproofing device for a diesel engine generator, for example, will be described.

FIG. 1 is an overall perspective view of the soundproofing device, FIG. 2 is a longitudinal sectional view, and FIG. 3 is an exploded perspective view. This soundproofing device is installed on a base W installed on a floor F, with a front wall A,
The rear wall part B and left and right side walls C and D are erected and assembled into a box shape, and on the box-shaped walls A, B, C and D, an intake duct part E which also serves as a ceiling part is placed. is,
An air intake duct G is connected to one end of the intake duct E, and an exhaust duct I is connected to the side wall C via a connecting cylinder H. A diesel engine J and a generator K are installed in the main body of the device, which is composed of a D and an intake duct section E, and the other end of the intake duct section E is connected to a connecting pipe L to the intake section _J1 of the diesel engine J. The exhaust section _J2 of the engine J is inserted into the connecting cylinder H.

The front wall section A and the rear wall section B are each composed of soundproof panels 1 and 2, and the side wall section C is composed of a soundproof panel 3.
Accordingly, each side wall portion D is constituted by a soundproof panel 4. As shown in FIGS. 4 and 5, the soundproof panel 1 includes an exterior plate 5 made of a steel plate, which is formed into a shallow box shape by integrally protruding flanges 5b having an L-shaped cross section on the four peripheral edges of an exterior plate main body 5a. And this box-shaped exterior plate 5
Sound absorbing material 6 made of glass wool loaded inside
and a lattice-shaped support 7 disposed on the surface side of the sound absorbing material 6 as necessary, so that the sound absorbing material 6 is disposed on the sound source side, that is, on the inside of the main body of the device.
The soundproof panel 2 has almost the same structure as the panel 1 described above, and consists of an exterior plate 5 having flanges 5b on the four peripheries of a main body 5a and a sound absorbing material 6, but the only difference is that it is equipped with a door 8 in the center. This door 8 is a smaller version of the panel 1 and is fitted in the center of the soundproof panel 2 so that it can be opened and closed, and is structurally the same as the panel 1. Further, the soundproof panel 3 is similar to the panel 2 described above with the door 8 removed, and has the same structure as this panel 2. Furthermore, the soundproof panel 4 has almost the same structure as the panel 1 described above, but the only difference is that the tip of the flange 5b of the exterior plate 5 is extended widely to form a flange 5b' having an L-shaped cross section. This is suitable for joining panels at right angles as shown in FIG. The support body 7 is made by assembling vertical wire rods 7a and horizontal wire rods 7b made of steel in a lattice shape, and the peripheral edges, that is, the ends of the wire rods 7a and 7b, are welded to the flange 5b of the exterior plate 5. The wire rods 7a, 7b may be fixed by sandwiching the ends of the wire rods 7a and 7b inside the flange 5b. Further, as such a support, a net made of metal or synthetic resin can be used. Furthermore, by coating the surface of the sound absorbing material 6 made of glass wool with a suitable resin material to form a surface coating layer, it is possible to prevent danger from coming into contact with the glass wool.

When assembling the front and rear walls A, B and the left and right side walls C, D into a box shape to form the main body of the device, the soundproof panels 1, 2, 3, 4 are joined together as shown in FIGS. A clamping connection 9 as shown schematically in Figure 5 is used. As shown in FIG. 6, this tightening connection fitting 9 includes a tightening arm 12 which has a hook 10 formed at its distal end and a circular hole 11 for fitting an eccentric ring at its base end, and an eccentric ring 14 formed concentrically and integrally with the support plate 13 on one side of a circular support plate 13 having a diameter larger than that of the support plate 11 and rotatably fitted into the hole 11; and the support plate 13 and the eccentric ring. A hollow rotating shaft 15 is integrally formed so as to penetrate through the shaft 14 and protrude to both sides thereof, and has a hollow portion 15a having a hexagonal cross section, for example.
A spring 17 for braking an eccentric wheel is press-fitted into a notch 16 provided around the hole 11 of the tightening arm 12 so as to communicate with the hole 11, and a stopper claw 19 is fitted around the circumferential edge of the disc 18. A positioning stopper 20 that projects integrally and is equipped to rotate together with the eccentric wheel 14, and a pair of brackets 21 and 22 on both sides that cover these members and support the rotating shaft 15.
, a latching pin 23 on which the hook 10 at the tip of the tightening arm 12 is latched, and a pair of brackets 24 and 25 on both sides on which the latching pin 23 is supported. 13 is an eccentric wheel 14
is rotatably arranged on one side of the tightening arm 12 in a state where it is fitted into the hole 11 of the tightening arm 12, and the stopper 20 has its disk 18 arranged on the other side of the tightening arm 12. The shaft hole 18a and the locking hole 18b of the disk 18 are fitted onto the locking protrusion 14a on the rotating shaft 15 and the eccentric wheel 14, respectively, so that they can rotate together with the eccentric wheel 14, and are tightened. The attached arm 12 swings and rotates around a rotating shaft 15, and is adapted to protrude and retract from the open ends 26 of the brackets 21 and 22, and the brackets 21 and 22 and the brackets 24 and 25 are each secured by caulking means or the like. Joined. When attaching the tightening connection fitting 9 having the above-mentioned configuration, as shown in FIG. the bracket 21,
The brackets 21 and 22 are fixed to the flange 5b by suitably welding the opening end 26 of the bracket 22 to the slit 5c opened in the flange 5b of the exterior plate 5, and the bracket 21 and 22 are fixed to the flange 5b, and a locking pin 23 is provided. The brackets 24 and 25 on one side are attached to the soundproof panel 2 on the other side.
Insert it into the bracket opening end 2 in the same way as above.
7 into the slit 5c of the flange 5b on the panel 2 side.
Weld and fix in a state that matches the In this way, one set of fastening coupling fittings 9 is installed, and as shown in FIG.
3 and 4, two or more sets of tightening coupling fittings 9 are arranged at appropriate intervals on each joint side, and slits 5c are provided in the flanges 5b and 5b' of each panel 1 to 4. There are several. The hollow rotating shaft 15 of the tightening connection fitting 9 has a hollow portion 15a having a hexagonal cross section as a rotating operation part, and one end of this rotating shaft 15 is inserted into an opening 5d provided in each soundproof panel. A rotary operating tool (for example, a hexagonal torque wrench) is inserted through the opening 5d to open the hollow section 15a, which has a hexagonal cross section and serves as a rotating operating section.
The rotary shaft 15 can be rotated from the outside by being engaged with the rotary shaft 15. Moreover, the adjacent tightening connecting fittings 9, 9 provided on the same joint side of each soundproof panel
are adapted to be locked or released by rotating them in opposite directions, and although not shown, a display board displaying arrows indicating these rotation directions is pasted near the opening 5d. .

Next, the operation of joining the soundproof panels 1 and 2 using the above-mentioned tightening connection fittings 9 will be explained with reference to FIGS. 7 and 8A to 8C. Note that FIG. 8 corresponds to FIG. 7 and only shows the arrangement of the metal fittings 9. Tightening arm 12
Normally (when not in use), the brackets are recessed into the brackets 21 and 22 as shown in Fig. 8A, and the brackets 2
The eccentric ring 14 is held in a wedge-like manner between the tapered holding parts 21a and 22a formed around the inner space of the spring 1, and the eccentric ring 14 is initially held by the spring 1.
7 restricts rotation within the fitting hole 11. When joining the panels, insert a rotary operating tool such as a hexagonal torque wrench T into the hollow part 15a of the rotating shaft 15 through the opening 5d of one of the soundproof panels 1, and rotate it clockwise from the state shown in FIG. The eccentric ring 14 and the tightening arm 12 are rotated in the same direction around the rotating shaft 15, and the hook 10 at the tip of the tightening arm 12 is rotated.
is hooked to the hook pin 23 on the other soundproof panel 2 side as shown in FIG. 8B. In particular, the tightening connection fittings are
A rotating shaft that is supported within one of the soundproof panels and has a rotating operation part, an eccentric ring that is integrally provided with this rotating shaft, and a base end that is fitted onto the outside of the eccentric ring so as to be able to rotate relative to the eccentric ring, and a distal end that is a tightening arm that is retractable through a slit that has a hook formed in the flange of the one soundproof panel; and a slit that is provided in the other soundproof panel and has a hook that opens in the flange of the other soundproof panel; Since it is composed of a locking pin that protrudes further and is latched, it can be rotated through the rotation operation part (in the example, a hollow part with a hexagonal cross section) using an appropriate rotation operation tool (in the example, a hexagonal torque wrench). When the shaft is rotated from a state in which the hook is latched to the latching pin, the rotation of the eccentric wheel accompanying the rotation of the rotating shaft causes the tightening arm to move the latching pin toward you through the hook. It moves in the pulling direction, thereby attracting the other soundproofing panel to one panel side, tightening and connecting both soundproofing panels. Therefore, by simply rotating the rotation axis, the adjacent soundproofing panel This has the advantage that the panels can be easily and quickly integrally joined together in a fastened state or disassembled. A positioning stopper 20 that is integrally connected to the eccentric wheel 14 through its rotation.
rotates together with the eccentric 14 and the clamping arm 12.
Then, from the state in which the hook 10 of the tightening arm 12 is latched to the latching pin 23 as shown in FIG. When applying rotational force,
Since further rotation of the tightening arm 12 is prevented by the locking of the hook 10 on the locking pin 23, the eccentric ring 14 integrated with the rotating shaft 15 cannot eccentrically rotate within its fitting hole 11. As a result, the tightening arm 12 is moved linearly to the right in the figure as shown in FIG. The flange 5b of the soundproof panel 1 is pressed against the flange 5b of the facing soundproof panel 1, and both panels 1 and 2 are thus tightly connected. in this case,
The stopper pawl 19 of the positioning stopper 20 engages the hooking portion 12a of the tightening arm 12 at the maximum eccentric position of the eccentric wheel 14.
Further rotation of the eccentric wheel 14 is prevented. The mounting position of the stopper pawl 19 may be appropriately set according to the amount of eccentricity of the eccentric wheel 14. Furthermore, when the soundproof panels 1 and 2 are joined together as described above and then disassembled, it is sufficient to rotate the rotating shaft 15 in the opposite direction. Incidentally, when joining the soundproof panels 1 and 2, it is preferable to interpose a packing P between the opposing flanges 5b and 5b (see FIG. 7).

The structure and joining method of the soundproof panels 1 to 4 that constitute the front and rear walls A, B and the left and right side walls C, D of the soundproofing device have been explained above. G and exhaust duct portion I are also constructed by suitably joining together soundproof panels having the same structure as the soundproof panels 1 to 4 described above. For example, the intake duct portion E or the intake duct portion I may be formed by assembling a plurality of panels similar to the panels 1 and 4 into a rectangular tube shape and joining them together using a fastening connection fitting 9. In addition, inside each of the above-mentioned intake duct section E and exhaust duct I,
As schematically shown in Fig. 3, a plurality of sound-absorbing materials 28 in the form of sand German plates, each made of a steel plate with sheet-like glass wool attached to both sides, are spaced at predetermined intervals in the width direction of the opening of the duct. Air layer 29
It is arranged with ... interposed. The intake duct portion E is divided into two parts, front and rear, and the exhaust duct part I is divided into two parts, top and bottom. A suction fan may be provided between the exhaust duct I and the connecting cylinder H, or another exhaust duct may be provided extending from the tip of the exhaust duct I. Also,
Near the outlet of the connecting cylinder H at the bottom of the exhaust duct I, as shown in FIG. etc. will be appropriately dispersed and reflected, and the sound will be effectively absorbed within the exhaust duct I.

In the above soundproofing device, air from outside the device is introduced into the intake section of the diesel engine J through the intake duct section G, the intake duct section E, and the connecting pipe L. The noise generated by the operation of the engine J is insulated by the soundproof panels constituting the four peripheral walls A to D of the device body and the intake duct E, and is also passed through the connecting pipe L to the intake duct E.
Sound propagating inside is insulated by the layer of sound absorbing material 28..., and exhaust noise, etc., when passing through the exhaust duct portion I, is insulated by the same layer of sound absorbing material 28.... Further, in constructing this soundproofing device, there is no need to use any frame such as pillars or beams, so manufacturing is easy and costs can be reduced.

(Effects of the invention) The soundproof wall structure of the present invention consists of a box-shaped exterior plate with flanges protruding from the four peripheries of the exterior plate body, and a box-shaped Since it is composed of sound absorbing material loaded into the exterior board, the structure of the soundproof panel is extremely simple and can be manufactured at low cost, and the box-like shape with flanges on the four edges makes it possible to create a panel with sufficient strength. Obtainable. Then, when joining the soundproof panels to each other,
The flanges of one adjacent soundproofing panel and the flanges of the other soundproofing panel are joined by a tightening connecting fitting that is removably interposed between both soundproofing panels with these flanges in between. All you have to do is attach the metal fittings to each soundproofing panel in advance and then hook the panels together and tighten them together on site, which makes the panel joining process easier compared to the conventional joining using bolts and nuts or welding. This has the effect that it can be done easily and quickly, and that disassembly is also simple. In particular, the tightening connection fitting has a rotating shaft that is pivotally supported within one soundproof panel and has a rotating operation part, an eccentric ring that is integrally provided with this rotating shaft, and a base end that rotates relative to the eccentric ring. a clamping arm which is fitted externally and has a hook formed at its tip and which is retractable through a slit opened in the flange of one of the soundproof panels; Since it consists of a locking pin that protrudes through a slit opened in the flange of the soundproof panel and is latched, the rotary operation part (in the example, the hexagonal cross section When the rotating shaft is rotated from a state in which the hook is latched to the latching pin, the tightening arm is rotated through the hook due to the rotation of the eccentric wheel that accompanies the rotation of the rotating shaft. Then move the locking pin in the direction of pulling it toward you, which will attract the other soundproofing panel to one panel side, tightening and connecting both soundproofing panels, and thus rotate the rotation axis. This has the effect that adjacent panels can be easily and quickly integrally joined together in a fastened state or disassembled by a simple operation.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a soundproofing device showing an embodiment of the present invention, Fig. 2 is a partially cutaway side view of the device shown in Fig. 1, Fig. 3 is an exploded perspective view of the same device, and Fig. 4 and FIG. 5 is a cross-sectional view of the panel and its joint portion, FIG. 6 is an exploded perspective view of the tightening connection fitting, and FIG. 7 is a perspective view showing the installation state of the tightening connection fitting.
FIGS. 8A to 8C are explanatory diagrams showing the operation of the tightening connection fitting. 1, 2, 3, 4...Soundproof panel, 5...Exterior board, 5a...Exterior board body, 5b, 5b'...Flange, 5c...Slit, 5d...Opening, 6...
Sound absorbing material, 7...Support, 9...Tightening connection fitting, 1
DESCRIPTION OF SYMBOLS 1... Hook, 12... Tightening arm, 14... Eccentric ring, 15... Rotating shaft, 15a... Hollow part of rotating shaft (rotating operation part), 23... Latching pin.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A soundproof wall structure constructed by combining a plurality of soundproof panels, each soundproof panel having a box-shaped exterior with flanges protruding from the four peripheries of the body of the exterior board. It consists of a board and a sound-absorbing material loaded into this box-shaped exterior board, and the flanges of one adjacent soundproof panel and the flanges of the other soundproof panel are hung between both soundproof panels with these flanges in between. They are connected by a removably interposed tightening connecting fitting, and this tightening connecting fitting is connected to a rotating shaft that is pivotally supported in one of the soundproof panels and has a rotating operation part, and is integrally installed on this rotating shaft. an eccentric wheel,
a tightening arm whose base end is fitted around the eccentric ring so as to be relatively rotatable and whose distal end is formed with a hook and which is retractable through a slit opened in the flange of one of the soundproof panels; A soundproof wall structure comprising a hook pin which is provided and whose hook protrudes through a slit opened in a flange of the other soundproof panel and is hung thereon. 2. Each soundproofing panel is provided with a lattice-like or net-like support on the surface side of the sound-absorbing material, and the peripheral edge of this support is fixed to the flange of the exterior plate. Soundproof wall structure. 3. The soundproof wall structure according to claim 1 or 2, wherein the sound absorbing material of each soundproof panel is made of glass wool.