JPH0646191U - Seismic stopper seal structure of anti-vibration device for cooling tower - Google Patents

Abstract

(57) [Abstract] [Purpose] With a simple structure, it has a sealing effect that prevents rainwater from entering the inside of the vibration isolator from the seismic stopper, and as a result, simplifies the anticorrosion measures of the vibration isolator. Provide a seismic resistant stopper seal structure for a vibration isolator for a cooling tower that can be made inexpensive. [Composition] In a vibration isolator for a cooling tower, which supports an upper case 3 via a vibration isolator 2 on a lower case 1, an elastic body mounting hole 5 is provided in the upper case 3, and a cylindrical body and a flange portion are provided at one end thereof. The elastic member 6 is attached to the mounting hole 5 by press fitting, and the upper surface of the flange portion of the elastic member 6 is
An elastic body cover member 7 having a hanging portion on the outer periphery is placed so that the tip of the hanging portion is close to the upper case 3, and a bolt 8 is inserted into a through hole 7a provided at the center of the elastic body cover member 7. The nut 10 is press-fitted, the front end side of which is inserted into the through hole 9 provided in the lower case 1 and fixed to the lower case 1.
It is supposed to be screwed into.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seismic stopper part of a vibration isolator for a cooling tower, which is attached to a lower part of a cooling tower that generates vibration and is installed outdoors in a building so as to reduce the transmission of vibration from the cooling tower to the building. The present invention relates to a seismic-resistant stopper seal structure that prevents rainwater from entering the anti-vibration device, simplifies anti-corrosion measures for the anti-vibration device, and reduces costs.

[0002]

[Prior art]

 Conventionally, as a structure of the seismic stopper of this type of cooling tower vibration isolator, as shown in FIG. 6, an elastic body mounting hole 25 is formed in an upper case 23 supported via a vibration isolator 22 on a lower case 21. An elastic member 26 having a cylindrical main body and a flange portion at one end thereof is mounted in the mounting hole 25, a bolt 28 is inserted into a through hole 26a provided at the center of the elastic member 26, and the tip side thereof is It is known that the nut 30 is inserted through a through hole 29 provided in the lower case 21 and screwed into a nut 30 fixed to the lower case 21, but the lower case 21 is inserted from the through hole 26a and the elastic body mounting hole 25. Rainwater is more likely to collect, and the lower case 21 and the anti-vibration member 22 are easily rusted. Therefore, as a rust preventive measure, there is a case where the lower case is made of a resin molded product and the metal coil spring of the vibration isolating member is coated with nylon or the like.

In such means, the cost is high because a resin molded product that requires an expensive molding die is used or an expensive rustproof treatment such as nylon coating is applied.

[0004]

[Problems to be solved by the device]

 The present invention has been made to solve the above-mentioned drawbacks, and has a simple structure, and has a sealing effect that prevents rainwater from entering the inside of the vibration isolator from the seismic stopper, and as a result, It is intended to provide a seismic resistant stopper seal structure for a vibration isolator for a cooling tower, which simplifies rust prevention measures for the vibration isolator and is inexpensive.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the structure of the present invention will be described with reference to the reference numerals of the drawings which are the embodiments. The present invention shows that a cooling tower for supporting an upper case 3 on a lower case 1 via a vibration isolator 2 is provided. In the vibration isolator for use in the upper case 3, an elastic body mounting hole 5 is provided, and an elastic member 6 having a cylindrical body and a flange portion at one end thereof is press-fitted into the mounting hole 5 and an upper surface of the flange portion of the elastic member 6 is attached. In addition, the elastic body cover member 7 having a hanging portion on the outer peripheral portion is placed so that the tip of the hanging portion is close to the upper case 3, and a through hole provided in the center of the elastic body cover member 7 is placed. An anti-vibration stopper for a vibration isolator for a cooling tower, in which a bolt 8 is press-fitted into 7a, the tip side of which is inserted into a through hole 9 provided in the lower case 1 and screwed into a nut 10 fixed to the lower case 1. With a sealed structure .

[0006]

[Action]

 In the vibration-proof stopper portion of the cooling tower vibration isolator configured as described above, the elastic member 6 having the cylindrical body and the flange portion at one end thereof is press-fitted into the elastic body mounting hole 5 provided in the upper case 3. Along with the upper surface of the flange of the elastic member 6, an elastic body cover member 7 having a hanging portion on the outer periphery is placed so that the tip of the hanging portion is close to the upper case 3. A bolt 8 is press-fitted into a through hole 7a provided at the center of the upper case 3 and is sealed so that rainwater does not enter the lower case 1 from the seismic stopper part of the upper case 3 even if rainwater hits the vibration isolator. Therefore, the rainwater does not enter the vibration isolator and collect.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 is a lower case of a vibration isolator fixed to a building foundation, and 2 is an antivibration member such as a coil spring, and an upper case to which a cooling tower is attached. Supports 3.

Reference numeral 4 denotes an earthquake-proof stopper portion, which is provided at four places on the vibration isolator as shown in FIG. 2 and has the following structure. That is, the lower case 1 is provided with the through hole 9 for inserting the bolt 8 therein, and the nut 10 for screwing the bolt 8 therein is fixed. The upper case 3 is provided with an elastic body mounting hole 5 for press-fitting and mounting a cylindrical body and an elastic member 6 having a flange portion at one end thereof. Then, an elastic member 6 having a cylindrical main body and a flange portion at one end thereof is press-fitted into the elastic body mounting hole 5, and a washer 11 is placed on the upper surface of the flange portion of the elastic member 6, and a washer 11 is placed thereon. The elastic body cover member 7 having a hanging portion on the outer peripheral portion is placed so that the tip of the hanging portion is close to the upper case 3, and the bolt 8 is inserted into the through hole 7a of the elastic body cover member 7, the washer 11, and the elastic member. The nut 10 is screwed through the member 6 and the through hole 9. In this configuration, the lower case 1 and the upper case 3 are made of metal that is galvanized, and the vibration isolating member 2 is a metal coil spring that is cationically electrodeposited. The elastic body mounting hole 5 is slightly smaller than the outer diameter dimension of the cylindrical main body of the elastic member 6, and the through hole 7a of the elastic body cover member 7 is slightly smaller than the outer diameter dimension of the bolt 8. Further, the bolt 8 has a cylindrical portion without a screw, and the cylindrical portion without a screw is in contact with the through hole 7a of the elastic cover member 7, so that the outer diameter of the flange portion of the elastic member 6 is elastic. It is smaller than the inner diameter of the hanging portion of the body cover member 7. Although the washer 11 is placed between the flange portion of the elastic member 6 and the elastic cover member 7 in this embodiment, it may be placed on the upper surface of the elastic cover member 7. Further, the number of seismic resistant stoppers 4 is not limited to four. The lower case 1 and the upper case 3 are hot dip galvanized, and the vibration-proof member 2 is a metal coil spring coated with cation electrodeposition, but the invention is not limited to this.

The vibration isolator A thus configured is used with a cooling tower B mounted on the upper case 3 as shown in FIG.

[0010]

[Effect of device]

 As described above, according to the present invention, a resin-molded lower case that has a sealing effect that prevents rainwater from entering the inside of the vibration isolation device from the seismic stopper and requires an expensive molding die is used. There is no need to use or to use expensive anti-corrosion treatment such as nylon coating on the metal coil spring of the anti-vibration member, and the anti-corrosion measures of the anti-vibration device can be simplified and the cost is reduced.

[Brief description of drawings]

FIG. 1 is an enlarged partial sectional view of an embodiment of the present invention.

FIG. 2 is a plan view of an embodiment of the present invention.

FIG. 3 is a front view (partially sectional view) of an embodiment of the present invention.

FIG. 4 is a side view of an embodiment of the present invention.

FIG. 5 is a view showing a use state of the vibration damping device according to the embodiment of the present invention.

FIG. 6 is an enlarged partial sectional view of a seismic resistant stopper portion of a conventional vibration isolator.

[Explanation of symbols]

 1 Lower Case 2 Vibration Isolator 3 Upper Case 4 Seismic Stopper 5 Elastic Body Mounting Hole 6 Elastic Member 7 Elastic Body Cover Member 7a Through Hole 8 Bolt 9 Through Hole 10 Nut 11 Washer A Vibration Isolator B Cooling Tower

Claims (1)

[Scope of utility model registration request] 1. A vibration isolator for a cooling tower, which supports an upper case (3) on a lower case (1) via a vibration isolator (2), wherein an elastic body mounting hole (5) is provided in the upper case (3). An elastic member (6) having a cylindrical main body and a flange portion at one end thereof is press-fitted into the mounting hole (5), and the elastic member (6) has an elastic member having a hanging portion on the outer peripheral portion on the upper surface of the flange portion. The body cover member (7) is placed so that the tip of its hanging portion is close to the upper case (3), and the bolt (8) is inserted into the through hole (7a) provided in the center of the elastic body cover member (7). ) Is press-fitted into the lower case (1).
An anti-vibration stopper seal structure for a vibration isolator for a cooling tower, characterized by being inserted into a through hole (9) provided in the lower case (1) and screwed into a nut (10) fixed to the lower case (1).