KR102253617B1 - Seismic structure of the cable tray - Google Patents

Abstract

The present invention relates to a seismic structure of a cable tray, which includes: computerized bolts fixed to be suspended in parallel to the lower side through the bracket fixed to the ceiling; a support member that is suspended and supported as the computerized bolt; and a cable tray mounted inside a supporting member supported as a computerized bolt suspended on both sides to receive a cable, wherein the computational bolt includes an upper seismic-resistant part formed by laminating a flange nut, an elastic member, a washer, an earthquake-resistant pad, and a square nut on the inside and outside of the bracket so that the upper part of the computerized bolt is fixed to the bracket, the computational bolt includes a seismic pad coated on the outside of the computational bolt so as to attenuate the seismic wave compressing the horizontal medium; and a shell covering the outer circumferential surface of the seismic pad, and the support member includes a lower seismic-resistant part formed by stacking a flange nut, an elastic member, a washer, an earthquake-resistant pad, and a square nut on the inside and outside the bottom penetrating the support member so that the vibration through the computerized bolt is blocked in the support member.

Description

Seismic structure of the cable tray

The present invention relates to a seismic structure of a cable tray, and to an improved seismic structure of a cable tray for improving damage to a power supply line installed in a building during a disaster such as an earthquake.

In general, the cable tray is one of the wiring facilities to protect and guide the electric wires of all buildings with a ceiling. These have a structure to support a cable tray that accommodates and guides a large number of cables by a support member suspended from the ceiling. Recently, various seismic facilities of cable trays that can overcome vibrations such as earthquakes have been proposed.

The seismic protection facility of the cable tray is solved by trying to block the rapid transmission of the vibration applied by the connection part of the computer bolt or the buffering means of the fixed part, or by buffering the vibration in the contact part.

This seismic design prevents the power in the building from being cut off by blocking the vibration of the cable tray when an earthquake occurs by buffering the support means for supporting the cable tray when the building flows such as an earthquake. Cable trays equipped with such seismic facilities still suffer from severe vibrations and seismic waves that move the medium in the enclosed space, and the cable trays on which the wired power lines are mounted are damaged due to severe flow or the power is cut off.

A buffer structure for a support member, such as a spring buffering means between the ceiling and the computational bolt, registered patent 10-1973574, registered patent 10-1825808, and registered patent 10-1712803 has been proposed.

On the other hand, as structures for vibration-proofing the cable tray itself, Korean Patent Publication No. 10-2014-0093204, Patent Publication 10-2012-0030224, and the like have been proposed.

In addition, there are known anti-vibration means for supporting these cable trays with various inclination angles.

Various technologies for vibration isolation and buffering against these vertical vibrations are known, and for horizontal vibration left and right, the periphery is surrounded by a vibration-proof structure or is installed obliquely from the ceiling. There was a lack of a certain vibration absorption effect against right vibration. In addition, it is necessary to take measures against vibration by seismic waveforms in a predetermined frequency range in an almost enclosed space due to vibration after the vibration by washers, pads, etc. applied to these buffer means.

Therefore, a countermeasure against a kind of horizontal vibration that vibrates the air medium in the space toward the cable tray is required, and a countermeasure against the vertical vibration that is actually transmitted must also be taken.

In addition, surface waves, which are a problem in seismic waves, are seismic waves that move along the earth's surface and cannot pass through the inside of the earth, and because they travel along the surface, they have excellent destructive power, and are called'Long Wave' because of their long vibrations and wavelengths. The speed is about 3km/s. Among the seismic waves, L wave in particular is a seismic wave that moves horizontally along the surface. Since the traveling direction and the vibration direction are at right angles, it is included in the long wave. Countermeasures against the subsequent and indirect vibrations of the vibration should also be dealt with very importantly.

Patent Document 0001 Korean Patent Registration No. 10-0689873 (Announcement date: 2007.03.12) Patent Document 0002 Korean Patent Registration No. 10-1436333 (Announcement date: 2014.08.26)

Patent Document 0003 Korean Published Patent No. 2012-0030224 (Published: 2012.03.28)

The present invention is a seismic resistance of the cable tray that can protect the cable tray to some extent from direct impact caused by earthquakes, etc. to solve the problems as in the prior art, and protect the cable tray from the secondary risk caused by the breakage of the cable tray support member. Its purpose is to provide structure.

Another object of the present invention is to improve a cable tray support structure capable of absorbing and buffering horizontal vibrations caused by earthquakes applied to the cable tray to a seismic structure.

The present invention applies multiple seismic pads with improved seismic performance to various seismic structures of existing cable trays to control vertically transmitted vibrations as well as vibrations in the building space and wavelengths caused by medium adhesion according to horizontal wavelengths of suspension members. The purpose is also to provide a cable tray seismic structure that attenuates and prevents to some extent.

The present invention prevents damage to the cable tray structure due to the above-described vertical and direct vibration, and allows the vertical vibration transmission structure to flow left and right, so that the cable tray remains stationary so that left and right vibrations are sequestered. The purpose of this is to provide a complex seismic structure that prevents damage to the cable tray due to direct and vertical vibrations such as earthquakes by adding a seismic isolation structure, and blocks directional vibration waveforms transmitted to the enclosed space.

According to a preferred embodiment of the seismic structure of the present invention cable tray for achieving the above object, the computer bolts fixed to be suspended in a long side by side downward through a bracket fixed to the ceiling; A support member that is suspended and supported as the computerized bolt; And a cable tray mounted on the inner side of the supporting member supported as computer bolts suspended on both sides to receive cables, wherein the computer bolt is inside and outside the bracket so that the top of the computer bolt is fixed to the bracket. It is a seismic structure of a cable tray including an upper seismic portion formed by stacking a flange nut, an elastic member, a washer, a seismic pad, and a square nut over each other.

The computing bolt of the seismic structure of the present invention cable tray for achieving the above object,

A seismic pad coated on the outside of the computing bolt so that an earthquake wave compressing the horizontal medium is attenuated; And an outer shell covering the outer circumferential surface of the seismic pad.

The support member of the seismic structure of the present invention cable tray for achieving the above object,

Cable tray seismic resistance comprising: a lower seismic portion formed by laminating flange nuts, elastic members, washers, seismic pads, and square nuts on the inside and outside of the floor penetrating the supporting member so that vibration through the computational bolt is blocked by the supporting member. Structure.

The seismic pad of the seismic structure of the present invention cable tray for achieving the above object,

Natural rubber (NR: Natural Rubber) or ethylene-propylene rubber (EP: Ethylene Propylene Rubber) 45 ~ 50% by weight, LIR: Liquid Isoprene Rubber or chloroprene rubber (CR: Chloroprene Rubber) 4 ~ 6% by weight , Carbon black SRF (Semi reinforcing Fumace Balck) 15 to 23 wt%, calcium carbonate (cac03) 7 to 12 wt%, blended oil 14 to 22 wt%, zinc oxide (ZnO) 1 to 2 wt%, stearic acid (S/ T) 0.5 to 1% by weight, M (MBT: 2-Mercapto benzo thiazole) 0.2 to 0.4% by weight in thiazole accelerator, TT (TMTD: Tetramethylthiuram Disulfide) 0.05 to 0.2% by weight, sulfur (S: Sulfur) 0.05 to 0.2% by weight and cerium (CE: cerium) 0.2 to 0.4% by weight of the first pad molded including; And

Natural rubber (NR: Natural Rubber) or ethylene-propylene rubber (EP: Ethylene Propylene Rubber) 50 to 55% by weight, LIR: Liquid Isoprene Rubber or chloroprene rubber (CR: Chloroprene Rubber) 2 to 4% by weight , Carbon black SRF (Semi reinforcing Fumace Balck) 15 to 23% by weight, calcium carbonate (cac03) 7 to 12% by weight, blended oil 14 to 22% by weight, zinc oxide (ZnO) 1 to 2% by weight, stearic acid (S/ T) 0.5 to 1% by weight, M (MBT: 2-Mercapto benzo thiazole) 0.2 to 0.4% by weight in thiazole accelerator, TT (TMTD: Tetramethylthiuram Disulfide) 0.05 to 0.2% by weight, sulfur (S: Sulfur) 0.05 to 0.2% by weight and cerium (CE: cerium) 0.2 to 0.4% by weight of the second pad molded including; Including, the first pad and the second pad are stacked in an up-down direction, and a cable tray seismic structure in which a first pad is formed at an uppermost end or a lowermost end.

According to a preferred embodiment of the seismic structure of the present invention cable tray for achieving the above object,

Computerized bolts fixed to be suspended long and side by side downward through a bracket fixed to the ceiling; A support member that is suspended and supported as the computerized bolt; And a cable tray mounted on the inside of the supporting member supported as computer bolts suspended on both sides to receive cables,

A square body installed horizontally on an upper surface of the support member and on which a cable tray is mounted;

At least one or more grooves exposed to the upper surface of the square body; And a seismic isolating block that is slidably inserted into the groove and partially protrudes upward from the square body and is made of a rotatable ball part; including a cable tray that flows left and right when the cable tray is vibrated by a computational bolt, spatial wavelength, etc. It is a seismic structure.

As described above, the seismic structure of the cable tray according to the embodiment of the present invention can protect the cable tray to some extent from a direct impact caused by an earthquake so as to solve the problems as in the prior art, and 2 due to the breakage of the cable tray support member. It has the effect of protecting the cable tray from car hazards.

The seismic structure of the cable tray according to an embodiment of the present invention can absorb and buffer horizontal vibrations caused by earthquakes applied to the cable tray.

The seismic structure of the cable tray according to an embodiment of the present invention applies multiple seismic pads with improved seismic performance to various seismic structures of the existing cable tray, as well as direct vibration transmitted vertically, as well as vibration in the building space and horizontality of the suspension members. It can attenuate or prevent the wavelength due to adhesion of the medium according to the enemy wavelength to some extent.

The seismic structure of the cable tray according to the embodiment of the present invention prevents the breakage of the cable tray structure due to the above-described vertical and direct vibration, and allows the vertical vibration transmission structure to flow left and right, so that the cable tray is in a stationary state. By adding a seismic isolation structure for seismic isolation of left and right vibrations, it prevents damage to the cable tray due to direct and vertical vibrations such as earthquakes, and blocks directional vibration waveforms transmitted to the enclosed space. Get

In addition, since the cable tray is supported while reinforcing the cable tray support member, it is possible to protect the cable tray from a secondary risk due to damage of the cable tray support member.

In addition, according to an embodiment of the present invention, there is an effect of improving safety since the fastening structure of the installed cable tray is not loosened by external vibrations including earthquakes.

1 is a perspective view showing a partial omission of the seismic structure of the cable tray according to the first embodiment of the present invention,
2 is an enlarged cross-sectional view of a main part of the seismic structure of the cable tray according to the first embodiment of the present invention,
3 is an exploded view of the main part of the seismic structure of the cable tray according to the first embodiment of the present invention,
Figure 4a is a cross-sectional view of the ceiling connection of the seismic structure of the cable tray according to the first embodiment of the present invention,
4B is a cross-sectional view showing an improved computer bolt of the seismic structure of the cable tray according to the first embodiment of the present invention,
4C and 4D are enlarged cross-sectional views of essential parts of the lower seismic part of the seismic structure of the cable tray according to the first embodiment of the present invention.
5 is an enlarged cross-sectional view of a main part of the seismic structure of the cable tray according to the second embodiment of the present invention,
6 is an exploded view of the main part of the seismic structure of the cable tray according to the second embodiment of the present invention,
Figure 7a is an extract of the main parts of the seismic unit of the seismic structure of the cable tray according to the second embodiment of the present invention,
7B is an enlarged cross-sectional view of a main part showing another application example of the seismic unit of the seismic structure of the cable tray according to the second embodiment of the present invention,
8A is a cross-sectional view of an installation state in which the cable tray of the seismic structure of the cable tray according to the second embodiment of the present invention is applied to the channel of the rectangular cross section of the lower seismic part,
8B is a cross-sectional view of an installation state in which a cable tray having a seismic structure of the cable tray according to the second embodiment of the present invention is applied with a channel having a U-shaped cross section of the lower seismic part,
9 is a cross-sectional view of the installation state of the ceiling connection part of the seismic structure of the cable tray according to the third embodiment of the present invention,
10 is an exploded view of another embodiment of the seismic unit of the seismic structure of the cable tray according to the third embodiment of the present invention,
11 is another embodiment of the seismic structure of the present invention cable tray,
12 is another embodiment of an application example of the raceway of the cable tray of the present invention.

Hereinafter, an air purifier for a closet according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

<Example 1>

In the accompanying drawings, FIG. 1 is a partial perspective view of the seismic structure of the cable tray according to the first exemplary embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of the main part of the seismic structure of the cable tray according to the first exemplary embodiment of the present invention, and FIG. 3 is the present invention. Fig. 4A is a cross-sectional view of a ceiling connection part of the seismic structure of the cable tray according to the first embodiment of the present invention, and Fig. 4B is a seismic structure of the cable tray according to the first embodiment of the present invention. Fig. 4c is an enlarged cross-sectional view of the main part of the lower seismic part of the seismic structure of the cable tray according to the first embodiment of the present invention, and is a view applied to a U-shaped support member with an open upper side, and Fig. 4D is It is an enlarged cross-sectional view of a main part of the lower seismic part of the seismic structure of the cable tray according to the first embodiment of the present invention, and is a view applied to a rectangular cross-sectional support member whose upper side is blocked.

The seismic structure of the cable tray according to the first embodiment of the present invention according to FIGS. 1, 2 and 4A of the above drawings includes a ceiling support part 11, a computer bolt part 20, a support member 30, and a cable tray 60. It is made, and the upper seismic part (10a) in the ceiling support part (11) is a flange nut (13), a washer (14), an elastic member (15), a washer (16), a seismic pad (17), a square nut (18), As the seismic pad 17, the computerized bolt part 20 can be installed to be suspended above and below the bracket 111, and the computerized bolt 22 of the computerized bolt part 20 suspended from the upper seismic part 10a is It is installed to be elongated to the support member 30.

The ceiling support 11 is a fixed wing formed in the shape of a wing by forming a bracket 111 for fixing the computerized bolt 22 to the ceiling P and a fastening hole 113 to fix the bracket 111 on the ceiling P. It consists of (112), and is installed to be fixed to the ceiling (P) as a fixing bolt (114) here.

The cable tray seismic structure of the first embodiment of the present invention according to Figs. 2, 3, 4b and 4c of the drawings is composed of a computerized bolt part 20 and a support member 30, and the intermediate seismic part 10b and , A seismic structure that is the same as the upper seismic unit 10a or omitting some parts may be applied to the lower seismic unit 10c.

The intermediate seismic part 10b and the lower seismic part 10c are respectively a flange nut 13, a washer 14, an elastic member 15, a washer 16, and a seismic pad at the top and bottom of the upper support member 30. 17), a square nut (18), a seismic pad (17) to support the computerized bolt (22).

As shown in FIG. 4B of the accompanying drawings, the intermediate seismic part 10b may constitute the vibration wave-attenuating type computerized bolt part 20 through the exposed computer bolts 22. The computational bolt unit 20 includes multiple seismic pads 17 wound on the exposed outer surface of the computational bolt 22 suspended in the upper seismic resistance 10a of the bracket 111 to attenuate the seismic wave; And a shell 23 covering the outer surface of the multiple seismic pads 17. Of course, various known seismic damping pads can be added, changed, or mixed.

Flange nuts 13, washers 14, elastic members 15, respectively in the upper seismic portion 10a, the middle seismic portion 10b, and the lower seismic portions 10c through which the computational bolt 22 configured as described above passes, Washer (16), seismic pad (17), square nut (18), the bracket 111 as the seismic pad (17), the computational bolt (22) penetrating the top or bottom (31) of the support member (30) It can be installed above and below the floor.

The above-described upper seismic unit 10a, intermediate seismic unit 10b, and lower seismic unit 10c may be collectively referred to as the seismic unit 10.

In addition, the support member 30 according to the first embodiment of the present invention may be implemented as a U-shaped channel 30a with an open upper side as shown in Fig. 4c, and in this case, the lower seismic part 10c is a U-shaped It may be installed at the top and bottom of the bottom 31 of the support member 30 of the cross section.

In addition, the support member 30 according to the first embodiment of the present invention may be implemented as a rectangular channel 30b having a rectangular cross-section blocked upward as shown in FIG. 4D. The above-described lower seismic part 10c penetrates the upper surface when the support member 30 has a rectangular cross-section, but may be implemented at the upper and lower ends thereof.

That is, in the accompanying drawings, FIG. 4D is an enlarged cross-sectional view of a main part of the lower seismic part of the seismic structure of the cable tray according to the present invention, and is a view applied to a rectangular support member whose upper part is blocked. In the cable tray seismic structure according to the first embodiment of the present invention shown in this figure, the support member indicates that it can be applied to a support member having a square cross section.

The cable tray seismic structure according to the first embodiment of the present invention made as described above is a cable tray on the upper surface of the support members 30 (30a, 30b) supported by the computerized bolts 20 suspended from the ceiling at parallel intervals. 60 will be located.

Therefore, when vibrations due to earthquakes occur, vertical vibrations are absorbed and buffered as the elastic member 15 and the seismic pad 17 in the upper seismic part 10a, and the computerized bolt 22 of the computerized bolt part 20 ), it is possible to block the influence of the seismic wave transmitted to the space by the horizontal seismic wave as the seismic pad (21).

The seismic pad according to Example 1 of the present invention is a multi-seismic pad, including 45 to 50% by weight of natural rubber (NR: Natural Rubber) or ethylene-propylene rubber (EP: Ethylene Propylene Rubber), and liquid isoprene rubber (LIR: Liquid Isoprene Rubber). ) Or chloroprene rubber (CR: Chloroprene Rubber) 4 to 6% by weight, carbon black SRF (Semi reinforcing Fumace Balck) 15 to 23% by weight, calcium carbonate (cac03) 7 to 12% by weight, blended oil 14 to 22% by weight, Zinc oxide (ZnO) 1 to 2% by weight, stearic acid (S/T) 0.5 to 1% by weight, M in thiazole accelerator (MBT: 2-Mercapto benzo thiazole) 0.2 to 0.4% by weight, TT in thiuram accelerator ( TMTD: Tetramethylthiuram Disulfide) 0.05 to 0.2% by weight, sulfur (S: Sulfur) 0.05 to 0.2% by weight, and cerium (CE: cerium) 0.2 to 0.4% by weight of the first pad molded including; And natural rubber (NR: Natural Rubber) or ethylene-propylene rubber (EP: Ethylene Propylene Rubber) 50 to 55% by weight, LIR: Liquid Isoprene Rubber or chloroprene rubber (CR: Chloroprene Rubber) 2 to 4% by weight %, carbon black SRF (Semi reinforcing Fumace Balck) 15 to 23 wt%, calcium carbonate (cac03) 7 to 12 wt%, blended oil 14 to 22 wt%, zinc oxide (ZnO) 1 to 2 wt%, stearic acid (S /T) 0.5 to 1% by weight, M (MBT: 2-Mercapto benzo thiazole) 0.2 to 0.4% by weight in thiazole accelerator, TT (TMTD: Tetramethylthiuram Disulfide) 0.05 to 0.2% by weight, sulfur (S : Sulfur) 0.05 ~ 0.2% by weight and cerium (CE: cerium) 0.2 ~ 0.4% by weight of the second pad molded containing; Including, the first pad and the second pad are stacked in the vertical direction, the uppermost or the lowermost It is desirable to have a composition and structure in which the first pad is formed again.

As described above, the seismic pad of the cable tray seismic structure according to the first embodiment of the present invention is a multi-vibration pad that has high tensile strength and elongation, so it has an excellent effect of absorbing shocks and vibrations, and has strong elasticity and resilience. The reduction rate is low and the durability is excellent, and the first and second pads having different hardness are stacked in multiple layers to limit the compressibility due to external loads, and both the flexibility and elasticity of the anti-vibration pad can be secured. It is generalized to be excellent in terms of mar properties, strong durability, and excellent shock and vibration attenuation effects regardless of external temperature.

<Example 2>

In the accompanying drawings, FIG. 5 is an enlarged cross-sectional view of the main parts of the seismic structure of the cable tray according to the second embodiment of the present invention, FIG. 6 is an exploded view of the main parts of the seismic structure of the cable tray according to the second embodiment of the present invention, and FIG. Fig. 7B is an enlarged cross-sectional view of the main parts showing another application example of the seismic unit of the seismic structure of the cable tray of Example 2 of the present invention, and Fig. 8A is an exemplary embodiment of the present invention. A cross-sectional view of the installation state of the cable tray of the seismic structure of the cable tray of Example 2 applied to the channel of the square cross section of the lower seismic part, and FIG. 8B is the cable tray of the seismic structure of the cable tray of Example 2 of the present invention. It is a cross-sectional view of the installation state applying the channel of the type cross section.

The seismic structure of the cable tray according to the second exemplary embodiment of the present invention according to the drawings may be applied to the same configuration as the first exemplary embodiment described above, and thus a description of some redundant configurations will be omitted.

The seismic structure of the cable tray according to the second embodiment of the present invention includes a ceiling support member 11, a support member 30, and a cable tray 60, and the upper seismic part 10a is provided with a flange nut ( 13), washer (14), elastic member (15), washer (16), seismic pad (17), square nut (18), as a seismic pad (17), the computerized bolt part 20 at the top and bottom of the bracket 111 ) Can be installed to be suspended, and the computerized bolt 22 of the computerized bolt part 20 suspended from the upper seismic part 10a is installed to be elongated to the support member 30.

The ceiling support member 11 is formed in a wing shape by forming a bracket 111 for fixing the computerized bolt 22 to the ceiling (P) and a fastening hole 113 to fix the bracket 111 to the ceiling (P). It is made of a fixed wing 112, and is installed to be fixed to the ceiling (P) as a fixed bolt 114 here.

Among the drawings, the cable tray seismic structure according to the second embodiment of the present invention is composed of a computerized bolt part 20 and a support member 30, and implements a seismic structure as an intermediate seismic part 10b and a lower seismic part 10c. can do.

The computerized bolt part 20 applied to the intermediate seismic part 10b according to the second embodiment of the present invention has a seismic wave shape on the exposed outer surface of the computerized bolt 22 suspended from the upper seismic part 10a of the bracket 111 Multiple seismic pads (17) wound to attenuate them; And a shell 23 covering the outer surface of the multiple seismic pads 17. A detailed description of the multiple seismic pads has been duplicated in the first embodiment, so a detailed description thereof will be omitted.

The lower seismic portion 10c of the seismic structure of the cable tray according to the second embodiment of the present invention is a flange nut 13, a washer 14, an elastic member 15, a washer ( 16), the seismic pad 17, the square nut 18, the seismic pad 17 can be made to support the computerized bolt 22.

The cable tray seismic structure according to the second embodiment of the present invention made as described above is a cable tray on the upper surface of the support members 30 (30a, 30b) supported by the computerized bolts 20 suspended from the ceiling at intervals. 60 will be located.

The support member 30 according to the second embodiment of the present invention may also be implemented as a U-shaped channel 30a with an open upper side, and may be implemented as a rectangular channel 30b having a rectangular cross-section with an upper side blocked.

The seismic unit includes a flange nut 13, a first washer 14, an elastic member 15, a second washer 16, a first seismic pad 17, and a square nut 18, respectively. And, the second seismic pad 17 may be sequentially stacked.

The cable tray seismic structure according to the second embodiment of the present invention may include a seismic isolation block 70 under the support member 30.

The seismic isolation block 70 includes a square body 71 and a square body 71 whose lower part is fixed to the upper end of the support member 30 so that the cable tray 60 mounted inside the support member 30 can flow. It includes at least one groove portion 73 with an open top surface, and a ball portion 72 that is inserted into the groove portion 73 and is partially exposed to the upper side of the square body 71 so as to be rotatable. The ball portion 72 may be formed as a coil spring (not shown). The groove portion 73 may have a semicircular curved surface 76 formed on the inner circumferential surface thereof, and a plurality of small balls 75 interposed between the bowl portion 72 to enable slip rotation.

The cable tray seismic structure according to the second embodiment of the present invention having such a configuration is supported by the computerized bolts 20 on both sides suspended from the ceiling when vibrations such as earthquakes occur as shown in FIGS. 8A and 8B of the accompanying drawings. As the member 30, 30a, 30b is equipped with a cable tray 60 in which a number of cables are embedded, the primary vibration is the upper seismic portion 10a, the middle seismic portion 10b, and the lower seismic portions 10c, that is, , Through the seismic unit 10, it absorbs and mitigates the shock caused by the seismic wave toward the air medium due to the gas in the space that can be transmitted by vertical and direct vibration as well as horizontal vibration, and a large Since the cable tray 60 supported on the seismic isolation block 70 slips to the left and right from the support member 30, it is possible to absorb and mitigate the left and right vibrations caused by lightly seismic isolation to the left and right even with a heavy cable tray. I can. In addition, as the above-described multiple seismic pads, the horizontal wavelength transmitted to the computing bolt unit 20 is also blocked or dust-proof, so that the influence of seismic waves through the air medium in the space in which the cable tray is installed can be reduced.

<Example 3>

In the accompanying drawings, FIG. 9 is a cross-sectional view of the installation state of the ceiling connection part of the seismic structure of the cable tray according to the third embodiment of the present invention, and FIG. 10 is an exploded view of another embodiment of the seismic unit of the seismic structure of the cable tray according to the third embodiment of the present invention.

Since the cable tray seismic structure according to the third embodiment of the present invention can be implemented in the same manner as in the first and second embodiments, a description of the redundant configuration thereof will be omitted.

That is, the cable tray seismic structure according to the third embodiment of the present invention is composed of a ceiling support member 11, a support member 30, and a cable tray 60, and the upper seismic part 10a is flanged to the ceiling support member 11. Nut (13), washer (14), elastic member (15), washer (16), seismic pad (17), square nut (18), seismic pad (17) stacked as a top and bottom bracket 111 The bolt part 20 can be installed to be suspended, and the computer bolt 22 of the computer bolt part 20 suspended in the upper seismic part 10a is installed to be elongated to the support member 30.

The ceiling support member 11 is formed in a wing shape by forming a bracket 111 for fixing the computerized bolt 22 to the ceiling (P) and a fastening hole 113 to fix the bracket 111 to the ceiling (P). It is made of a fixed wing 112, and is installed to be fixed to the ceiling (P) as a fixed bolt 114 here.

Among the above drawings, the cable tray seismic structure according to the third embodiment of the present invention can be implemented by implementing the intermediate seismic portions 10b and the lower seismic portions 10c by forming the computerized bolt portions 20 suspended on both sides. have.

The intermediate seismic part 10b according to the third embodiment of the present invention is a multiple seismic pad wound to attenuate the seismic wave on the exposed outer surface of the computing bolt 22 suspended from the upper seismic part 10a of the bracket 111 (17) And it may be provided with a shell (23) covering the outer surface of the multiple seismic pad (17) described above. A detailed description of the multiple seismic pads has been duplicated in the first embodiment, and thus a detailed description thereof will be omitted.

The middle seismic part 10b and the lower seismic part 10c are respectively a flange nut 13, a washer 14, an elastic member 15, a washer 16, and a seismic pad at the top and bottom of the upper support member 30. 17), a square nut (18), a seismic pad (17) to support the computerized bolt (22). Hereinafter, the upper seismic unit 10a, the intermediate seismic unit 10b, and the lower seismic unit 10c described above may be collectively referred to as the seismic unit 10. The seismic unit 10 includes a flange nut 13, a first washer 14, an elastic member 15, a second washer 16, a first seismic pad 17, and a square nut 18, respectively. ) And the second seismic pad 17 may be sequentially stacked.

The configuration of such a seismic unit 10 includes an elastic member 15 in which direct vibration through a computer bolt 22 is stacked, and a seismic pad 17 to which multiple seismic pads described in detail in Example 1 are applied. It can absorb and alleviate the vibration of the body. The support member 30 according to the third embodiment of the present invention may also be implemented as a U-shaped channel 30a with an open upper side, and may be implemented as a rectangular channel 30b having a rectangular cross-section with an upper side blocked.

The seismic structure of the cable tray according to the third embodiment of the present invention may include a flow unit 40.

The flow unit 40 of the third embodiment of the present invention has a space part 41b inside the main body 41a, and at the same time, an insertion hole 42a and a slit 42b are formed on one wall surface, respectively, and are fastened to the computerized bolt. It accommodates the first fastening tool 50A and the second fastening tool 50B fastened to the computer bolt, and the main body 41a is symmetrically vertically and horizontally based on the insertion hole 42a and the slit 42b. It is configured and assembled by inserting the cover 43, and the first and second fastening tools 50A, 50B have a connecting gap 52 and a rotating ball 53 connected from the cylindrical body 51 integrally formed to flow. It is maintained so as to have fluidity in the upper, lower, and circumferential directions within the space portion 41b of the main body 41a constituting the unit 40.

That is, while having a space portion 41b inside the main body 41a constituting the flow unit 40, slits 42b are respectively formed on both sides of the insertion hole 42a formed on one side of the wall. And, the insertion hole (42a) and the slit (42b) is configured to achieve vertical and horizontal symmetry based on the first and second fastening tool (50A, 50B) is accommodated.

In addition, the first and second fasteners 50A and 50B are inserted into the insertion hole 42a and the slit 42b, and the cover 43 is inserted and fixed. ,50B) can be prevented from leaving or keep the appearance beautiful.

Each of the first and second fastening holes 50A, 50B has a rotating ball 53 integrally formed through a connecting gap 52 connected from the cylindrical body 51, and the cylindrical body 51 The threaded portion 54 is formed on the inner diameter side of the.

Accordingly, the rotating ball 53 formed in the first and second fastening holes 50A and 50B is assembled so that it can be detached and attached in the space 41b of the main body 41a constituting the flow unit 40. The first fastening tool 50A may be fastened to the anchor bolt 10 and the second fastening tool 50B may be fastened to the computerized bolt 30.

According to this configuration, the rotation ball 53 constituting the first fastening tool 50A and the second fastening tool 50B in a state where the anchor bolts 10 are mounted at a predetermined position of the concrete ceiling P is connected to the flow unit. By assembling through the insertion hole 42a and the slit 42b formed in the main body 41a of 40, it can be maintained in the upper and lower spaces 41b of the main body 41a.

In addition, since the inner diameter side of the cylindrical body 51 of the first and second fasteners (50A, 50B) is formed with a threaded portion (54), the anchor bolt (10) is fastened to the first fastening tool (50A). It is possible to bind each other by fastening the computer bolts 30 to the 2 fastening tool 50B. Subsequently, while the angle frame 20 is assembled on the lower side of the computing bolt 30, the structure T such as a cable tray is mounted on the angle frame 20 and then fixed using a conventional fastening element. It can be assembled.

The cable tray seismic structure according to the third embodiment of the present invention may include a seismic isolation block 70.

The seismic isolation block 70 includes a square body 71 and a square body 71 whose lower part is fixed to the upper end of the support member 30 so that the cable tray 60 mounted inside the support member 30 can flow. It includes at least one groove portion 73 with an open top surface, and a ball portion 72 that is inserted into the groove portion 73 and is partially exposed to the upper side of the square body 71 so as to be rotatable. The ball portion 72 may be formed as a coil spring (not shown). The groove portion 73 may have a semicircular curved surface 76 formed on the inner circumferential surface thereof, and a plurality of small balls 75 interposed between the bowl portion 72 to enable slip rotation.

The seismic structure of the cable tray according to the third embodiment of the present invention is a seismic isolation block 70 implemented in the support member 30 suspended by the computer bolt unit 20 according to the left and right flow of the above-described flow unit 40. The cable tray 60 mounted by) does not flow left or right even if it vibrates left and right.

That is, the seismic structure of the cable tray according to the third embodiment of the present invention is vertical through the computational bolts 22 of the seismic unit 10 of the upper seismic unit 10a, the middle seismic unit 10b, and the lower seismic unit 10c. ,The primary vibration is absorbed and mitigated by the elastic member 15 on which the horizontal vibration is stacked and the seismic pad 17, and at the same time, the flow unit 40 implemented in the lower computational bolt part 20 of the upper seismic part 10a. ) And, even if strong left and right vibrations are generated by the seismic isolation block 70 installed on the upper surface of the support member 30, the left and right flows of the flow unit 40 correspond to the seismic isolation block 70 and flow to the left and right. As a result, there is a characteristic that vibration is hardly applied to the cable tray 60 mounted on the upper side of the support member 30.

11 of the accompanying drawings is another embodiment of the seismic structure of the present invention cable tray. The seismic structure of the cable tray according to the embodiment of the present invention shown in this drawing includes the upper seismic portion 10a and the support member 30 suspended in the intermediate seismic portion 10b as described above, and the lower seismic portion 10c or In the case of applying the seismic unit 10 from which some parts are omitted, the support member 30 of the above-described embodiments 1, 2, and 3, even when the support member 30 of the ┘-shaped cross-section is applied instead of the U-shaped cross-section. ) Can implement the same seismic function.

12 of the accompanying drawings is another embodiment of the seismic structure of the cable tray according to the present invention. The seismic structure of the cable tray of the present invention shown in this drawing includes an upper seismic portion 10a, an intermediate seismic portion 10b, and a lower portion, such as a raceway in which the computational bolt portion 20 described above is independently suspended from the ceiling. The earthquake-resistant part (10c) is equally composed of a flange nut (13), a washer (14), an elastic member (15), a washer (16), a seismic pad (17), a square nut (18), and a seismic pad (17). The unit 10 may be applied as it is, and in particular, the support member 30 may be implemented in a rectangular cross-sectional structure.

The present invention has been described with reference to a preferred embodiment illustrated in the drawings and described above, but this is illustrative, and various modifications and equivalent other embodiments from those of ordinary skill in the art such as the present invention It is possible. The technical protection scope of the present invention will be determined by the claims.

10: earthquake-resistant unit, 10a; upper earthquake-resistant part, 10b; intermediate earthquake-resistant part, 10c; lower earthquake-resistant part,
11: Ceiling support, 111; bracket, 112; fixed wing, 113; fixed hole, 114; fixed bolt,
13; flange nut, 14; washer, 15; elastic member, 16; washer, 17; seismic pad,
18; square nut, 20; computer bolt part, 21; seismic pad, 22; computer bolt, 23; shell,
30; support member, 30a; support member of U-shaped section, 30b; support member of square section,
31; floor, 40: flow unit 41a: main body 41b: space portion, 42a: insertion hole,
42b: slit, 43: cover, 50A: first fastening, 50B: second fastening, 51: cylindrical body,
52: connection interval, 53: rotating ball, 54: threaded portion, 60; Cable tray, 70; seismic isolation block,
71; square body, 72; ball part, 73; Groove, 75; small ball,
76; semicircular curved surface,

Claims (6)

Computerized bolts fixed to be suspended long and side by side downward through a bracket fixed to the ceiling;
A support member supported by the computerized bolt; And
A cable tray mounted on the inside of the support member supported by the computer bolts suspended on both sides in parallel to accommodate cables;
Including,
The computational bolt,
A seismic pad coated on the outside of the computing bolt so that an earthquake wave compressing the horizontal medium is attenuated; And
An outer shell covering the outer circumferential surface of the seismic pad;
Including,
In the computational bolt,
An upper seismic portion formed by stacking a flange nut, an elastic member, a washer, a seismic pad, and a square nut over the inside and outside of the bracket so that the upper portion of the computer bolt is fixed to the bracket; And
A lower seismic portion formed by stacking flange nuts, elastic members, washers, seismic pads, and square nuts on the inside and outside of the floor penetrating the supporting member so that vibration through the computational bolt is blocked by the supporting member;
Including,
The support member,
A square body installed horizontally on an upper surface of the support member and on which a cable tray is mounted;
At least one or more grooves exposed to the upper surface of the square body; And
A seismic isolation block formed of a rotatable ball portion slidingly inserted into the groove and partially protruding upward of the square body;
Including,
The seismic pad,
Natural rubber (NR: Natural Rubber) or ethylene-propylene rubber (EP: Ethylene Propylene Rubber) 45 ~ 50% by weight, LIR: Liquid Isoprene Rubber or chloroprene rubber (CR: Chloroprene Rubber) 4 ~ 6% by weight , Carbon black SRF (Semi reinforcing Fumace Balck) 15 to 23 wt%, calcium carbonate (cac03) 7 to 12 wt%, blended oil 14 to 22 wt%, zinc oxide (ZnO) 1 to 2 wt%, stearic acid (S/ T) 0.5 to 1% by weight, M (MBT: 2-Mercapto benzo thiazole) 0.2 to 0.4% by weight in thiazole accelerator, TT (TMTD: Tetramethylthiuram Disulfide) 0.05 to 0.2% by weight, sulfur (S: Sulfur) 0.05 to 0.2% by weight and cerium (CE: cerium) 0.2 to 0.4% by weight of the first pad molded including; And
Natural rubber (NR: Natural Rubber) or ethylene-propylene rubber (EP: Ethylene Propylene Rubber) 50 to 55% by weight, LIR: Liquid Isoprene Rubber or chloroprene rubber (CR: Chloroprene Rubber) 2 to 4% by weight , Carbon black SRF (Semi reinforcing Fumace Balck) 15 to 23% by weight, calcium carbonate (cac03) 7 to 12% by weight, blended oil 14 to 22% by weight, zinc oxide (ZnO) 1 to 2% by weight, stearic acid (S/ T) 0.5 to 1% by weight, M (MBT: 2-Mercapto benzo thiazole) 0.2 to 0.4% by weight in thiazole accelerator, TT (TMTD: Tetramethylthiuram Disulfide) 0.05 to 0.2% by weight, sulfur (S: Sulfur) 0.05 to 0.2% by weight and cerium (CE: cerium) 0.2 to 0.4% by weight of a second pad molded including;
Including, the first pad and the second pad is stacked in the upper and lower direction of the cable tray seismic structure. delete delete delete delete The computer bolts 22 are suspended in a long parallel downward from the bracket 111 fixed as a fixing bolt 114 to the ceiling support part 11, and the seismic waveform compressing the horizontal medium is attenuated in the computer bolt 22. A computerized bolt part 20 formed to cover the outer circumferential surface of the seismic pad 21 so as to be covered as a shell 23;
Support members 30 which are suspended and supported in parallel on both sides of the computerized bolt part 20;
A cable tray 60 mounted inside the support member 30 to accommodate a cable; And
A seismic isolation block 70 installed on the upper surface of the support member 30;
Including,
The computational bolt part 20,
The top of the computational bolt 22 is a flange nut 13, a washer 14, an elastic member 15, a seismic pad 17, a square nut 18, and an earthquake-proof pad across the inside and outside of the bracket 111. An upper seismic portion 10a for stacking 17), respectively; And
Flange nuts 13, washers 14, elastic members 15 inside and outside the floor 31 penetrating the support member 30 so that vibration through the computational bolt 22 is blocked from the support member 30, A lower seismic portion 10b for stacking the seismic pad 17, the square nut 18, and the seismic pad 17, respectively;
Including,
The seismic isolation block 70,
A square body 71 installed on the upper surface of the support member 30 and on which the cable tray 60 is mounted;
The square body 71 has at least one groove portion 73 having an open upper surface and forming a semicircular curved surface 76 on the inner circumferential surface; And
A ball part 72 that is built into the groove part 73 and partially exposed to the upper side of the square body 71 so as to be rotatable;
Cable tray seismic structure comprising a.

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