KR20190102548A - Earthquake-resistant hanger device applied to cable trays - Google Patents

Abstract

The present invention relates to an earthquake-resistant hanger device and a cable tray using the same, wherein the earthquake-resistant hanger device uses: a means configured to, when dynamic shock including an earthquake is transmitted, primarily disperse or attenuate the dynamic shock in every direction including forward and rearward directions and left and right directions; a means configured to secondarily disperse or attenuate, in the left and right directions, first remaining dynamic shock remained after the transmitted dynamic shock is primarily dispersed or attenuated; a means configured to thirdly disperse or attenuate, in the forward and rearward directions, second remaining dynamic shock remained after the transmitted first remaining dynamic shock is secondarily dispersed or attenuated; and a means configured to fourthly disperse or attenuate, in a vertical direction, third remaining dynamic shock remained after the transmitted second remaining dynamic shock is thirdly dispersed or attenuated, so that it is possible to disperse or attenuate the dynamic shock in various directions step by step even when the dynamic shock including P and S waves of the earthquake is transmitted in various directions. The earthquake-resistant hanger device comprises: an upper support rod (100) having one side installed on the ceiling of a structure, and an omnidirectional rotating ball (110) installed on the other side; and an upper body (200) having the other side of the upper support rod (100) penetrating therethrough, and a connector (210) having a connection space for storing the omnidirectional rotating ball (110) and formed on an inner upper surface.

Description

Earthquake-resistant hanger device applied to cable trays

The present invention provides a means for dispersing or attenuating 360 ° in the forward direction, which includes the forward and backward directions and the left and right directions, when the dynamic shock including the earthquake is transmitted. Means for secondly dispersing or attenuating the dynamic shocks in the left and right directions, means for secondly dispersing or attenuating the remaining residual dynamic shocks after the second dispersion or attenuation of the first residual dynamic shocks in a third direction, and Dynamically from various directions, including P and S waves of the earthquake, by means of thirdly dispersing or attenuating the transmitted second residual dynamic shock and then fourthly distributing or attenuating the remaining third residual dynamic shock in the vertical direction. Seismic row applied to cable trays that distribute or attenuate dynamic shocks in various directions step by step even when shock is delivered Device and to a cable tray using the same.

In general, the building has laid out various wires, telephone lines or shared lines in the ceiling for power supply, communication line connection or fluid supply, but the cable tray is used to consider the appearance and to solve the inconvenience of pedestrians.

Such a cable tray can be divided into ladder type, bottom sealed type and perforated type according to the shape of the body, and according to the installation type, straight type, elbow type, tee type, cross type, straight reducer, right reducer, left reducer It can be classified as a dusher.

By the way, the cable tray installed in the building has a problem that when the dynamic shock such as an earthquake is transmitted up, down, left and right, or if it is severely damaged.

The above problems have been filed and registered by the present applicant, and solved by a dustproof hanger device for a cable tray capable of being dust-proof against vibration in multiple directions and a cable tray (Patent Document 1) including the same.

1 is a perspective view showing a dustproof hanger device for a conventional cable tray, Figure 1 is a longitudinal side view showing a dustproof hanger device for a conventional cable tray, a perspective view, Figure 1 is a dustproof hanger device for a conventional cable tray. It is a lateral side view which shows.

As shown, the dust-proof hanger device for a conventional cable tray, the upper body 10, the lower body 20, the lower body 20 is rotatable in the upper body 10, the upper body 10 and the lower body. Hinge shaft 30 for connecting the hinge 20, one side is fixed to the structure, the other side penetrates the first support rod 40, which is embedded through the upper body 10, the first support rod 40 An upper elastic member 41 disposed, an upper fixing member 42 fixing the upper elastic member 41, and a second support having one side fixed to the cable tray and the other side penetrating through the lower body 20; A rod 50, a lower elastic member 51 disposed on the second support rod 50, and a lower fixing member 52 fixing the lower elastic member 51.

As described above, the dustproof hanger device for a cable tray configured as described above provides a shockproof that the dynamic shock is distributed or attenuated in the vertical direction of the vertical direction and the left and right directions in which the hinge is rotated when the dynamic shock such as an earthquake is transmitted.

That is, with reference to Figure 2 mainly, the dust-proof hanger device for a conventional cable tray, the upper elastic member 41 via the first support rod 40 fixed to the structure such as the ceiling, when a dynamic shock such as earthquake is transmitted. In this case, the coil spring, which is the upper elastic member 41, attenuates the magnitude of the impact in the vertical direction while being elastically compressed due to the dynamic shock transmitted by the relay. The same occurs in the lower elastic member 51.

At the same time, the dustproof hanger device for a conventional cable tray is relayed to the upper body 200 via a first support rod 40 fixed to a structure such as a ceiling when a dynamic shock such as an earthquake is transmitted. The upper body 10 is pivotally connected to the lower body 20 by the hinge shaft 30, so that the dynamic shock transmitted from the upper body 10 is centered on the hinge shaft 30 It is consumed to rotate the shaft, thereby distributing the dynamic shock to the left and right directions.

In particular, the dustproof hanger device for a cable tray is provided with a bearing disposed so as to surround an outer circumferential surface of the first or second support rod in contact with an inner surface of the main body, between the outer ring and the inner ring of the bearing. At least a portion of the interposed ball is exposed to the outside to provide 360 ° rotation through contact of the ball of the bearing with the inner surface of the body.

However, in spite of these advantages, the dustproof hanger device for the conventional cable tray is distributed or attenuated dynamic shock occurring in various directions because the dispersion or attenuation of dynamic shock such as an earthquake is achieved only in the vertical direction and the left and right directions. There is a problem that the performance is halved.

In addition, the dustproof hanger for a cable tray according to the related art has a problem in that dispersion or attenuation performance of the dynamic shock is limited because the angle (or length of the arc) that is rotated left and right in the left and right directions among the directions in which the dynamic shock is distributed or reduced.

In addition, the dustproof hanger device for a conventional cable tray also has a problem that the production cost increases because the bearing is provided to provide a 360 ° rotation is expensive.

KR 10-1784922 B1

The present invention is to solve the problems of the prior art, an object of the present invention is a means for dispersing or attenuating in the forward direction, including the front and rear and left and right directions primarily during the transmission of a dynamic shock including an earthquake, the transmitted dynamic Means for dispersing or attenuating the first residual dynamic shock remaining after dispersing or attenuating the impact primarily in the left and right direction, Secondary residual dynamic remaining after distributing or attenuating the first residual dynamic shock delivered secondarily Means for distributing or attenuating the impact in the forward and backward directions in three directions and means for distributing or attenuating the remaining third residual dynamic impact in the vertical direction in a fourth direction after the third dispersion or attenuation of the delivered secondary residual dynamic shock in a third direction. To provide a seismic hanger device applied to the cable tray and a cable tray using the same.

As a technical concept for achieving the present invention, an earthquake-resistant hanger device applied to the cable tray of the present invention includes: an upper support rod having one side installed on a ceiling of a structure and the ball for forward rotation rotating on the other side; The other side of the upper support rod is penetrated therein, the upper body having a connector formed on the inner upper surface connection space for receiving the ball for rotation in all directions;

An earthquake-resistant hanger device applied to the cable tray of the present invention includes a middle body; and includes a front and rear hinge shaft for hinge connection such that the middle body is rotatably coupled to the left and right in the upper body.

The seismic hanger device applied to the cable tray of the present invention further includes a lower body; further comprising a left and right hinge shaft hinged to connect the lower body to the front and rear direction in the middle body; do.

The lower body further includes a vertical attenuation means for attenuating the transmitted dynamic impact in a vertical direction.

The vertical damping means may include a lower support rod having a cable tray side supported at a lower portion thereof, and a fixing unit provided at an upper portion of the lower body penetrating therein; The upper side is supported by the fixing rod of the lower support rod, the lower side is composed of an elastic member supported on the inner surface of the lower body.

The seismic hanger device is applied to the cable tray of the present invention, the lower support rod is penetrated, the upper end having a settling space having a lower space of the elastic member; includes;

A lower portion of the lower support rod penetrates the lower body; a buffer support member;

Cable tray applied to the seismic hanger device of the present invention, one side is installed on the ceiling of the structure, the other side is the upper support rod is installed ball for rotation in the forward direction; And an upper body having the other side of the upper support rod penetrated therein, the upper body having a connector formed on the inner upper surface of which the ball for rotating the omnidirectional rotation is accommodated. A plurality of unit trays provided with side rails connected in a cross or plate shape; A pair of outer connecting brackets each having a connecting surface connected to the outer surfaces of the plurality of unit trays spaced at regular intervals in the longitudinal direction, and extending from each end of the connecting surfaces to be extended outwardly to face each other; And a third cable disposed between the extension surfaces of the pair of outer connection brackets, the third elastic members being connected to both of the extension surfaces.

The present invention is a means for dispersing or attenuating in the 360 ° front direction, which includes the front and rear and left and right directions, when the dynamic shock including the earthquake is transmitted, the first remaining residual after the first distributed or attenuated the transmitted dynamic impact Means for secondly dispersing or attenuating the dynamic shocks in the left and right directions, means for secondly dispersing or attenuating the remaining residual dynamic shocks after the second dispersion or attenuation of the first residual dynamic shocks in a third direction, and Dynamically from various directions, including P and S waves of the earthquake, by means of thirdly dispersing or attenuating the transmitted second residual dynamic shock and then fourthly distributing or attenuating the remaining third residual dynamic shock in the vertical direction. Even when the shock is transmitted, it not only disperses or attenuates the dynamic shock in various directions step by step, Through the means for chain it can implement it need not be provided with an expensive bearing to exert the effect of lowering the production costs.

1 is a perspective view showing a dustproof hanger device for a conventional cable tray.
Figure 2 is a side view showing a dustproof hanger device for a conventional cable tray.
Figure 3 is a longitudinal side view showing a dustproof hanger device for a conventional cable tray.
Figure 4 is a perspective view of the seismic hanger device of the present invention,
Figure 5 is an exploded perspective view showing a seismic hanger device of the present invention.
Figure 6 is a cross-sectional view mainly showing the upper body side of the configuration constituting the earthquake-resistant hanger of the present invention.
Figure 7 is a cross-sectional view mainly showing the lower body side of the configuration constituting the earthquake-resistant hanger of the present invention.
8 and 9 is a state diagram used in the seismic hanger device of the present invention.
10 is an exploded perspective view of a cable tray used in the seismic hanger device of the present invention.
11 is a plan sectional view of a cable tray according to an embodiment of the present invention.
12 is a side cross-sectional view of a cable tray according to an embodiment of the present invention.
Figure 13 is a perspective view of a dustproof rung according to an embodiment of the present invention.

Before describing in detail the configuration and operation of the embodiments of the present invention with reference to the accompanying drawings, the present invention can be variously modified and can have a variety of forms, the following embodiments will be described in detail the present invention It is to be understood that the invention is not intended to be limited to the particular forms disclosed, but rather includes all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In addition, in the drawings, the components are exaggerated or simplified in size or thickness in consideration of convenience of understanding and the like, but the protection scope of the present invention should not be limitedly interpreted, thereby performing the same function. Whenever possible, the same reference numerals will be specified. In addition, the terms used in the present invention are merely used to describe the following examples and are not intended to limit the present invention, and the singular forms “a,” “an,” and “the” include plural forms unless the context clearly indicates otherwise.

Figure 4 is a perspective view showing the seismic hanger of the present invention, Figure 5 is an exploded perspective view showing the seismic hanger of the present invention, Figure 6 is mainly the upper body side of the configuration constituting the seismic hanger of the present invention. 7 is a cross-sectional view mainly showing the lower body of the configuration constituting the seismic hanger device of the present invention, Figures 8 and 9 is a state diagram of the use of the seismic hanger device of the present invention, Figure 10 is the present invention Figure 11 is an exploded perspective view of a cable tray used in the seismic hanger of Figure 11 is a cross-sectional plan view of a cable tray according to an embodiment of the present invention, Figure 12 is a side cross-sectional view of a cable tray according to an embodiment of the present invention. Figure 13 is a perspective view of the anti-vibration rung according to an embodiment of the present invention, Figure 14 is a cross-sectional view showing another embodiment of the forward rotation ball of the seismic hanger device of the present invention. The.

4 to 14, the seismic hanger device applied to the cable tray of the present invention is largely distributed or attenuated in the 360 ° front direction, which includes the front and rear and left and right directions when the dynamic shock including the earthquake is largely transmitted. Means for firstly dispersing or attenuating the transmitted dynamic impact, and then means for secondly dispersing or attenuating the remaining primary residual dynamic impact in the left and right directions, secondly dispersing or attenuating the transmitted primary residual dynamic shock. Means for distributing or attenuating the remaining second residual dynamic shock in the front-rear direction three-way and for distributing the remaining third-order residual dynamic shock in a fourth vertical direction after tertiarily dispersing or attenuating the transmitted second residual dynamic shock. To attenuating means.

First, the means for dispersing or attenuating in the forward direction, which includes the front and rear directions and the left and right directions, when a dynamic shock including an earthquake provided in an earthquake-resistant hanger device applied to the cable tray of the present invention is transmitted, the one side is the ceiling of the structure. The other side of the upper support rod 100 and the upper support rod 100 installed on the other side, the ball 110 for forward rotation is installed in the other side is penetrated therein, the ball 110 for forward rotation on the inner upper surface It consists of an upper body 200 having a connector 210 formed with a connection space accommodated.

Here, the fixing between the ceiling of the structure and the upper support rod 100 is a male screw portion provided at the end of the anchor bolt fixed to the ceiling of the structure together with the fixing structure shown in the drawing and the inner peripheral surface of the tip side of the upper support rod 100 It can be fixed through a variety of fastening structures, such as spiral fastening and coupling fastening of the female screw portion formed along the.

In addition, the upper body 200 may be manufactured in a state in which the left and right sides are removed in order to increase the rotation radius for attenuating the dynamic shock when the hinge and the middle body 300 to be described later are combined. For this purpose, both parts of the longitudinal plate can be bent and used.

In addition, the bent both sides of the upper body 200 may be provided by finishing the semi-circular form so as not to damage the surrounding structure during rotation to disperse or attenuate the transmitted dynamic impact.

The forwardly rotating ball 110 installed on the other side of the upper support rod 100 and the connector 210 in which the forwardly rotating ball 110 is accommodated are transmitted because they are coupled in a hemispherical shape. If the shock is an S-wave of the earthquake, it is induced to shake in the front-back direction, which is the direction of the earthquake. In addition to having a damping resistance to attenuate, even if the dynamic shock is transmitted in the front, rear, left and right multi-direction, the characteristics of the hemisphere coupling structure induces to shake according to various directions to be delivered to provide maximum shock resistance.

In addition, as shown in FIG. 14, the ball for rotation in all directions 110 may be made of a hemispherical rubber material, which may be formed by penetrating the upper support rod 100 to allow a bolt or nut to be coupled thereto. This is to further improve the shock buffer effect.

In addition, the means for distributing or attenuating the first residual dynamic shock remaining in the left and right directions after the first dispersion or attenuation of the transmitted dynamic impact provided in the seismic hanger device applied to the cable tray of the present invention is the middle side. The front and rear hinge shafts 400 are hingedly connected to each other such that the body 300 is rotatably coupled in the left and right directions in the upper body 200.

Here, since the middle body 300 has a structure that is hinged orthogonally orthogonally between the upper body 200 and the lower body 500 to be described later, and bending both parts of the longitudinal plate so that each hinge hole can be formed and In addition, the front and rear parts can be used partially bent.

In addition, the bent both sides of the middle body 300 may also provide a semi-circular finish to prevent damage to the surrounding structure during rotation to disperse or reduce the transmitted dynamic impact.

Accordingly, if the primary residual dynamic shock, which is the residual dynamic shock remaining after the dynamic shock is dispersed or attenuated through the upper body 200, is swayed as the S-wave of the earthquake, it is induced to shake in the horizontal direction in the corresponding direction. By further dispersing or attenuating the first residual dynamic shock whose strength is weakened to maximize the shock resistance, it provides a more secure support from the dynamic shock transmitted to the cable tray 800 to secure the support.

On the other hand, if the primary residual dynamic shock, which is the residual dynamic shock remaining after the dynamic shock is dispersed or attenuated through the upper body 200, is forward and backward as the S wave of the earthquake, the shock resistance provided by the middle body 300 may be halved. have. In order to solve this problem, in the seismic hanger device applied to the cable tray of the present invention, after distributing or attenuating the first residual dynamic shock transmitted secondarily, the second residual dynamic shock is distributed or attenuated in the front and rear directions three times. You can provide a means.

That is, after the secondary residual dynamic shock provided in the seismic hanger device applied to the cable tray of the present invention is distributed or attenuated secondarily, the secondary residual dynamic shock is distributed or attenuated in the front-rear direction in a third direction. The means consists of a left and right hinge axis 600 which hinge-connects the lower body 500 to be rotatably coupled in the front-rear direction from the middle body 300.

Here, the lower body 500 may be manufactured in a state where the front and rear side surfaces are removed in order to increase the radius of rotation for reducing the dynamic impact. For this purpose, both parts of the longitudinal plate can be bent and used.

In addition, the bent both sides of the lower body 500 may be provided by finishing the semi-circular form so as not to damage the surrounding structure during rotation to disperse or reduce the transmitted dynamic impact.

As a result, when the secondary residual dynamic shock, which is the residual residual dynamic shock remaining after the primary residual dynamic shock is dispersed or attenuated through the middle body 300, is earthquake left and right as an S wave, most of the dispersion is distributed in the middle body 300. Since the attenuated state, the lower body 500 provides the cable tray 800 to be securely supported from the transmitted dynamic shock without a big problem.

In addition, if the transmitted dynamic shock is the forward and backward direction as the S-wave of the earthquake, the secondary residual dynamic shock, which is gradually dispersed or attenuated and weakened in intensity, is induced to swing in the forward and backward direction corresponding to the corresponding direction. By distributing or attenuating in a third way, the cable tray 800 is provided to be more securely supported.

On the other hand, if the dynamic shock transmitted through the upper body 200, the middle body 300 and the lower body 500 is the P wave of the earthquake again by dispersing or attenuating in the vertical direction, the strength is weakened through each step By correspondingly shaking according to the vertical direction of the dynamic impact, it provides a fixed support of the cable tray 800 can be maximized.

To this end, the means for distributing or attenuating the remaining third residual dynamic shock qualitatively in the vertical direction after distributing or attenuating the secondary residual dynamic shock transmitted in the seismic hanger device applied to the cable tray of the present invention in a fourth direction. This can be provided.

Means for distributing or attenuating the remaining third residual dynamic shock qualitatively in the vertical direction after distributing or attenuating the secondary secondary dynamic shock transmitted to the seismic hanger device applied to the cable tray of the present invention in a third direction vertically It is provided in the lower body 500, it is implemented through the vertical attenuation means 700 for reducing the transmitted dynamic impact in the vertical direction.

The vertical damping means 700 that performs this function is supported by the cable tray 800 side on the lower side, the lower support rod 710 is provided with a fixing portion 711 in the upper portion which is internally penetrated by the lower body 500. ), The upper side is supported by the fixing table 711 of the lower support rod 710, the lower side is to pass through the elastic member 720, the lower support rod 710 is supported on the inner surface of the lower body 500, A buffer support member 740 may be inserted into a lower portion of the lower support rod 710 penetrating through the support 730 and the lower body 500 having a settled space in which the lower side of the elastic member 720 is placed.

Here, the elastic member 720 may use a spring.

In addition, a washer may be added between the elastic member 720 and the holder 711, and the diameter of the holder 711 may have a diameter similar to the outer diameter of the elastic member.

In addition, in the drawing, but the separate stand 730 and the buffer support member 740 is represented separately, it may be provided as an integral, the support 730 and the buffer support member 740 is an elastic material such as rubber Can be used.

In addition, by providing the reinforcing iron plate to the upper surface portion of the rest restraint 730 in contact with the elastic member 720 by insert injection, it is possible to ensure a high tensile load strength.

In addition, the front and rear hinge shafts, the left and right hinge shafts (400, 600) formed on the left and right side uneven grooves (not shown in the figure) to the upper body 200, the middle body 300 and the lower body 500 is tensioned In case of being subjected to a load or direct impact, it prevents the split pin from falling off and delays the deviation from the outside.

Through this, when the dynamic shock transmitted through the upper body 200, the middle body 300 and the lower body 500 is the P wave of the earthquake, the third shock, which is dispersed or attenuated through the lower body 500, is the remaining dynamic shock. As the residual dynamic shock is transmitted in the vertical direction, it is transmitted to the elastic member 720 constituting the vertical attenuation means 700, and the elastic member 720 is elastic in the vertical direction due to the third residual dynamic shock in the vertical direction transmitted. By repeating the process of compressing and restoring elasticity to achieve the shock resistance to disperse or attenuate the third residual dynamic impact, it provides a fixed support of the cable tray 800 can be maximized.

And the configuration of the cable tray 800 is fixed through the seismic hanger device of the present invention is as follows. The cable tray 800 according to the present invention includes a unit tray 810, an outer connection bracket 820, an inner connection bracket 830, and a third elastic member 840.

Here, the inner connection bracket 830 may be excluded from the configuration to reduce the production cost.

On the other hand, the third elastic member 840 absorbs the shock when the third residual dynamic shock is transmitted in the longitudinal direction, it can provide more improved shock resistance.

The unit tray 810 has a so-called ladder shape provided with a pair of side rails 812 spaced apart from each other in the width direction by a cross bar 811. Of course, the present invention is not limited to this, but may be a bottom-type closed type without a ladder shape or a punching type with a ventilation hole on the floor or a mesh type with a ventilation hole made of a net.

The outer connecting bracket 820 is connected to the outer surface of the pair of unit trays 810 spaced apart at regular intervals in the longitudinal direction, respectively, and the outer side at one end of each of the connection surface 821 It is bent to the 'a' plate structure having an extension surface 822 facing each other.

The inner connecting bracket 830 is disposed on the inner surface of the pair of unit trays 810 and the inner connecting surface 831 connected to the connecting surfaces 821 of the respective outer connecting brackets 820 on both sides thereof. It has a plate shape provided.

The inner connecting bracket 830 has a central portion of the plate spring-shaped curved portion 832 rounded in the inner direction of the unit tray 810 is elastic to the external force in the width direction to the connecting portion of the unit tray 810 It has a function to respond to.

In this case, the curved portion 832 may correspond to the stretching in the longitudinal direction of the connection portion of the unit tray 810.

The third elastic member 840 is disposed between the extension surfaces 822 of the pair of outer connection brackets 820 and the coil spring shape of the unit tray 810 connected to both of the extension surfaces 822. It performs a function to elastically respond to the external force in the longitudinal direction.

In addition, a protective device 850 is provided to surround the outside of the third elastic member 840 to protect the third elastic member 840, and the protective device 850 may be made of a rubber material or the like.

Here, the third elastic member 840 is provided in a pair spaced apart in parallel in the width direction is provided in parallel, the protective device 850 has a cross-section wrapped to protect the pair of third elastic member 840 It is a one-piece tube structure having an approximately eight-character shape.

Here, the protective equipment 850 may also be excluded from the configuration to reduce the production cost.

In addition, a plurality of fastening holes may be formed in the unit tray 810, the outer connection bracket 820, and the inner connection bracket 830 to fasten the fastener.

Accordingly, in the seismic cable tray according to the embodiment of the present invention, the outer connection bracket is installed between the unit trays, and the third elastic member is coupled between the outer connection brackets, even if an earthquake or the like occurs. Shock can be cushioned at the connection between unit trays to prevent the cable tray from being damaged.

The seismic cable tray according to the present invention configured as described above is as follows.

First, a pair of unit trays 810 are arranged to be spaced apart at regular intervals in the longitudinal direction.

Then, the outer connection bracket 820 is disposed on the outer surface of the side rail 812 of the unit tray 810 and the inner connection bracket 830 is disposed on the inner surface of the side rail 812 to connect them with separate fasteners. .

In addition, the third elastic member 840 is disposed between the pair of outer connection brackets 820 and wrapped with the protective device 850, and fastened with a separate fastener so that the third elastic member 840 is connected to the outer connection brackets 820. ) To be fixed between them.

The earthquake-resistant cable tray coupled in this way is shock-absorbed by the third elastic member 840 between the outer connecting brackets 820 even if an earthquake or the like occurs, and in addition, the inner connecting bracket 830 has a longitudinal external force. The curved portion 832 and the third elastic member 840 can be appropriately stretched and coped with each other, and the curved portion 832 can be appropriately coped with the external force in the width direction.

The cable tray 800 according to the embodiment of the present invention described above may be a ladder type including a pair of side rails 812 and a cross bar 811 connecting them.

In this case, the crossbar 811 is interposed between the pair of side rails 812 and disposed to cross the pair of side rails 812, and the crossbar 811 is bolted to the side rails 812. 8119) may be coupled to the fastening means.

The anti-vibration crossbar 811 according to the embodiment of the present invention has a cross tab body 8111 of a hollow tubular body, and a first tab hole 8113 so that the bolts 8119 may be fastened to both ends of the cross main body 8111. The first coupling plate (8112) having a) and the spaced in a predetermined distance inwardly from the first coupling plate (8112) and the bolt (8119) fastened to the first coupling plate 8112 is fastened together It may include a second coupling plate (8114) having a second tab hole (8115).

The cross main body 8111 is not particularly limited in cross-sectional shape as a tubular body, but may be, for example, a tubular body having a circular or polygonal cross section. As a specific example, as illustrated in FIG. 10, the cross main body 8111 may be a tubular body having a cross section in which a shape of the letter 'C' is substantially modified, including an opening 8217 at least partially opened at one side thereof. .

Through this, as well as reducing the unit cost of the crossbody (8111), it is possible to improve the fastening workability when fastening with the side rail (812).

The first and second coupling plates 8112 and 8114 are plate-shaped pieces having the first and second tab holes 8113 and 8115 respectively. As described above, the first coupling plate 8112 is the crossbody body 8111. The second coupling plate 8214 may be placed at both ends of the second coupling plate 8214 at a position in which the second coupling plate 8214 is inserted inwardly by a predetermined distance from the first coupling plate 8112.

In this case, the second coupling plate 8214 may be bent by a pressure applied inwardly from one side of the crossbody body 8111.

When the bolt 8119 is fastened to the crossbar 811 by penetrating the side rails 812, the bolt 8119 may be coupled to span both the first and second coupling plates 8112 and 8114. Do. Thus, the crossbar 811 has a double fastening structure in which the first and second tap holes 8113 and 2115 correspond to the bolts 8119 to serve as nuts, and thus, the bolts 8119 may be subjected to repeated vibration. In order to prevent loosening, the second coupling plate 8114 maintains a fastening state with the bolts 8119 through a spring action, thereby having a seismic resistance and distributing side loads to thereby tighten the fastening force between the side rails 812 and the cross 811. Can be improved.

On the other hand, even when a strong vibration occurs in the direction parallel to the longitudinal direction of the crossbar, the second coupling plate 8161 placed inside the crossbar 811 is elastic with respect to the bolt 8119 fastened with the stiffness of the material itself. Providing restoring force, it is possible to improve the shock resistance against vibration in the direction across the cable tray.

100: upper support rod 110: ball for all directions rotation
200: upper body 210: connector
300: middle body 400: front and rear hinge axis
500: lower body 600: left and right hinge axis
700: vertical direction attenuation means 710: lower support rod
711: holder 720: elastic member
730: set rest 740: buffer support member
800: cable tray

Claims (8)

An upper support rod 100 having one side installed on the ceiling of the structure and the ball 110 for forward rotation installed on the other side thereof;
Consists of the other side of the upper support rod 100 through the inner body, the upper body 200 having a connector 210 formed on the inner upper surface of the ball for the forward rotation 110 is formed; Earthquake-resistant hanger characterized in that.
The method of claim 1,
Including a middle body 300,
The middle body 300 is a front and rear direction hinge shaft 400 which hinges so as to be rotatably coupled in the left and right directions in the upper body 200; and the hinge axis is a groove on the assembly surface and the middle shaft and the upper body It is formed is an earthquake-resistant hanger device, characterized in that to ease the deviation when the tension load occurs.
The method of claim 2,
It further comprises a lower body (500),
The lower body 500 is a seismic hanger device, characterized in that it further comprises; a left and right hinge axis (600) for hinge connection so as to be rotatable in the front and rear direction in the middle body (300).
The method of claim 3,
The lower body 500, a seismic hanger device further comprising; vertical direction attenuation means for attenuating the transmitted dynamic impact in the vertical direction.
The method of claim 4, wherein
The vertical direction damping means 700 has a lower support rod 710 having a cable tray 800 side supported at a lower portion thereof, and a fixing member 711 provided at an upper portion of the lower body 500. ;
The upper side is supported by the fixing base 711 of the lower support rod 710, the lower side is an elastic member 720 which is supported on the inner surface of the lower body 500;
The method of claim 5,
And a lower support rod 710 through which the lower support rod 710 has a settling space on which a lower side of the elastic member 720 is placed.
The method of claim 6,
A shock absorbing hanger device, characterized in that the lower portion of the lower support rod 710 penetrating through the lower body 500;
One side is installed on the ceiling of the structure, the upper support rod 100 is installed on the other side for rotating the ball 110; And an upper body 200 having the other side of the upper support rod 100 penetrated therein, and having a connector 210 having a connection space in which the ball 110 for forward rotation is accommodated on an inner upper surface thereof. Cable tray 800 is applied to the seismic hanger device to
The cable tray 800 may include: a plurality of unit trays 810 having side rails spaced apart from each other in a width direction and connected to each other in a cross or plate shape; Connection surfaces 821 connected to the outer surfaces of the plurality of unit trays 810 spaced at regular intervals in the longitudinal direction and extending surfaces bent outwardly from one end of each of the connection surfaces 821 to face each other ( A pair of outer connecting brackets 820 having 822; And a third elastic member 840 disposed between the extension surfaces 822 of the pair of outer connecting brackets 820 and connected to both extension surfaces 822. Applicable cable tray.

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