JPS6030552Y2 - Earthquake-resistant installation structure for large equipment such as air conditioners - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an earthquake-resistant installation structure for large equipment such as refrigerators and air conditioners.

When installing large equipment used in air conditioning equipment such as fans and pumps, it is necessary to prevent accidents such as the equipment becoming detached, moving, malfunctioning, falling over, or being damaged due to large amplitudes and accelerations during earthquakes. .

1 to 3 show how large-scale devices have been installed in the past, using fans and motors as examples.

In the figure, a is a fan, b is a motor that drives fan a, and C is an upper frame to which fan a and motor b are attached, and has a U-shaped cross section.

At least two of the upper racks C are installed in parallel with each other, appropriately spaced apart from each other on both the left and right sides, with the upper and lower pieces d and d facing each other outward, and the two upper racks C and c
A channel having a similar cross-sectional shape is integrally extended between them, and the fans a1 and motor b are attached to the upper surface of this upper frame (or channel) by bolts, nuts, welding, or the like.

e is the middle part of the upper frame.

Incidentally, in FIG. 1, of the two upper racks c, c, only one (upper rack on the paper side of the drawing) C appears, and the other (upper rack on the back side of the drawing) C does not appear.

f is a lower pedestal corresponding to each of the upper pedestals C and c, and its cross-sectional shape is L-shaped.

There are also at least two lower frames f on both the left and right sides, which are provided in parallel with each other, appropriately spaced apart, with their supporting pieces g facing each other. A piece connected at right angles to the support piece g is fixed to an installation surface such as concrete.

i, i, . . . are vibration isolators such as rubber, coil springs, or leaf springs, which are inserted between the lower piece d of the upper frame C and the support piece g of the lower frame f at appropriate locations. ing.

Stopper mechanisms are provided at appropriate locations j, j, . . . on the upper pedestal C and the lower pedestal f.

Figures 2 and 3 show the stopper mechanism, where k is an upper plate with a half fixed to the upper surface of the upper piece d of the upper pedestal C, and I is a half plate fixed to the upper surface of the support piece g of the lower pedestal f. The lower plate has a fixed part.

Bolt insertion holes m and n are formed in the upper plate and the other half of the lower plate 1, respectively.

0 is a rubber bushing fitted into a bolt insertion hole m in the upper plate.

A stopper bolt p is inserted through the rubber bush O and the bolt insertion hole n of the lower plate 1.

Nuts q1 to q6 are screwed onto the stopper bolt p, and the stopper bolt p is fixed to the lower plate l by ql and q2.

Q39 Q4 is screwed to the stopper bolt p at a position slightly spaced downward from the rubber bush 0, and q
5? Q6 is screwed onto the stopper bolt p at a position slightly spaced upward from the rubber bush 0.

These nuts q1 and q2? q3 and q4?
q5 and q6 are strongly tightened toward each other to prevent loosening.

This conventional installation structure cannot withstand large vibrations and lateral shaking, and when rolling due to an earthquake with a large seismic intensity, the stopper bolt P receives a large tensile force and breaks in the waves, or is subjected to bending force, causing fatigue failure. .

As a result, the upper and lower frames may move laterally or the vibration isolator may come off, resulting in an accident that damages the upper and lower frames, the air conditioner, etc.

The purpose of the present invention is to prevent the pedestal supporting the device from being destroyed even if the device is tilted due to large vibrations (particularly horizontal shaking) during an earthquake.

The present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 4 is an enlarged perspective view showing the main parts of the present invention. In the figure, 1 is a large device installed, such as a fan motor, and 2 is a U-shaped cross section fixed to the lower side edge of the device. The upper frame has an upper part 3, a lower part 4, and an intermediate piece 5 which connects the upper and lower parts 3 and 4 together.

The upper frame 2 is fixed to the large device 1 by an intermediate piece 5 such that the upper and lower pieces 3 and 4 face each other outward.

Reference numeral 6 denotes a lower pedestal fixed to the installation surface by, for example, bolts 7, and 8 is a fixing piece thereof, by means of which the lower mount 6 is fixed to the installation surface.

9 is a U-shaped part on the upper part of the lower pedestal 6, 10 is its upper piece, and 11 is its lower piece.

The width of the upper piece 10 and the lower piece 11 and the interval between the two pieces are approximately the same as the width of the upper piece 3 and the lower piece 4 of the upper mount 2 and the interval between the two pieces.

12.12 is the lower surface of the upper piece 10 of the lower pedestal 6 and the lower piece 11
It is a cushioning rubber bat fixed to the top surface of the

In the device 1, the upper piece 3 of the upper pedestal 2 is the upper and lower pieces 10 of the lower pedestal 6,
11, and the lower piece 4 is located between the lower piece 11 of the frame 6 and the fixed piece 8.
It will be located between the

If the device 1 rolls due to an earthquake and is tilted as shown in FIG. , the upper piece 3 of the upper pedestal 2 on the right side comes into contact with the lower piece 11 of the lower pedestal 6, and is prevented from tilting any further.

Conversely, if it is tilted as shown in FIG. 6, the upper piece 3 of the upper pedestal 2 on the right side will come into contact with the upper piece 10 of the lower pedestal 6, and the upper piece 3 of the upper pedestal 2 on the left side will contact the lower pedestal 6. 6 and is prevented from tilting any further.

The impact force caused by the tilting is absorbed by the elastic bodies 12, 12, such as rubber bats, and the vibration isolators 13, 13 provided between the device 1 and the installation surface, or between the upper pedestal 2 and the lower pedestal 6. be done.

In addition, absorption of vibration of the device 1 during normal operation is performed using a vibration isolator 13.13.
carried out by

In this way, in this invention, rather than firmly fixing a large device such as a fan to a pedestal, by arranging upper and lower pedestals with U-shaped cross sections facing each other, a certain degree of tilt and amplitude is allowed, and large amplitudes in the event of an earthquake can be avoided. In addition to providing a strong stopper function against horizontal shaking, the impact caused by tilting is absorbed by an elastic body such as a rubber bat, so unlike conventional methods, there is no possibility of breakage of the stopper bolt or lateral movement of the upper and lower frames. This has the effect of preventing damage to the pedestal and equipment caused by.

It should be noted that what is shown in FIGS. 4 to 6 is only one embodiment of the present invention, and for example, the rubber bats 12 may be fixed to both the upper and lower surfaces of the upper piece 3 of the upper frame 2. It can be implemented in various ways.

Further, if the strength of the upper frame and the lower frame is insufficient, ribs may be provided at appropriate positions for reinforcement.

Further, in the embodiment, the upper pedestal 2 is fixed to the lower side edge of the large device 1, but it may be fixed to the bottom edge of the device 1.

[Brief explanation of drawings]

Figures 1 to 3 show an example of a conventional earthquake-resistant installation structure for air conditioners, etc. Figure 1 is a side view showing the whole, Figure 2 is a front view showing an enlarged stopper mechanism, and Figure 3 is an example of an earthquake-resistant installation structure for a conventional air conditioner. 4 shows an enlarged plan view of the stopper mechanism, FIGS. 4 to 6 show an embodiment of the present invention, FIG. 4 is an enlarged perspective view of the main part, and FIGS. 5 and 6 show the device. It is a front view showing a tilted state. 1...Large equipment such as air conditioners, 2...
Upper frame, 3...Top piece, 4...Lower piece, 6...Lower frame, 9...C-shaped cross section, 10... ...Top piece, 11...Bottom piece, 2...Elastic piece, 13...Vibration isolator.

Claims (1)

[Scope of utility model registration request] An upper stand with a square cross section, in which both upper and lower pieces are integrally connected by an intermediate piece, is fixed to the lower part of a large device such as an air conditioner so that the upper and lower pieces protrude outward, while the upper stand is attached to the equipment installation surface. A lower pedestal having a U-shaped cross section having upper and lower pieces corresponding to both upper and lower pieces of the large apparatus is fixed, and the upper piece of the upper pedestal fixed to the lower part of the large device is connected to the upper and lower pieces of the lower pedestal. At the same time, an elastic body is fixed to either the upper surface of the upper piece of the upper pedestal or the lower surface of the upper piece of the lower pedestal; An earthquake-resistant installation structure for large equipment such as an air conditioner, characterized in that an elastic body is fixed to either the lower surface or the upper surface of the lower piece of the lower mount.