JPH0561507U - Mounting structure for fastening screws for outdoor enclosures - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent moisture from entering from the outside at the screw part that fastens the parts that make up the housing installed outdoors, and to prevent the screw from becoming detachable due to corrosion of the screw. prevent. [Structure] The waterproof packing with female screw 1 is attached to a joint portion between a plate 3 and a housing 2a in a mounting portion of a screw 4. Further, the waterproof packing with female screw 1 has a female screw hole 1a having a hole diameter slightly larger than the hole diameter of the female screw hole 6b into which the screw 4 is inserted. The housing 2a has a tapered hole 6a provided for compressing and deforming the waterproof packing with female screw 1 in the central direction of the circumference of the screw 2. Plate 3
It has a counterbore hole 7a into which the waterproof packing with female screw 1 is inserted, a mounting hole 7 and a waveguide 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting structure for a fastening screw for an outdoor housing, and more particularly to a mounting structure for a screw that fastens together components forming an outdoor housing.

[0002]

[Prior Art]

 As a conventional mounting structure for fastening screws for outdoor housings, there is a structure as shown in FIG. FIG. 3 is a cross-sectional view showing an example of a conventional attachment structure for a fastening screw for an outdoor housing. The housing 2c installed outdoors has a structure having a female screw hole 6d and a packing groove 8 into which a waterproof packing 5 for preventing moisture from entering the housing is inserted. The plate 11 has a mounting hole 7c and is mounted on the housing 2c with a screw 4.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional mounting structure for a fastening screw for an outdoor housing, seawater and water such as acid rain, especially in the coastal area, are waterproof from the mating surface between the plate 11 and the housing 2c and the mounting hole 7c of the screw 4. It will enter the female screw hole 6d provided on the outer periphery of the packing 5. As a result, the conventional structure for mounting the fastening screw for the outdoor case has a problem that the female screw hole 6d is gradually corroded and the screw 4 for fastening the plate 11 cannot be attached or detached.

The present invention has been made in view of the above problems, and it is possible to prevent moisture from invading from the outside in a screw portion that fastens together components constituting a casing installed outdoors. Therefore, it is an object of the present invention to provide a fastening screw mounting structure for an outdoor housing, which can prevent the screw from becoming unremovable due to corrosion of the screw.

[0005]

[Means for Solving the Problems]

 An outdoor housing fastening screw mounting structure according to the present invention has a taper hole and a female screw hole in an outdoor housing fastening screw mounting structure for fastening an outdoor housing composed of a plurality of parts. A first part, a second part having a mounting hole and a counterbore hole, and a waterproof packing with a female screw attached to the counterbore hole in the second part and having a female screw hole, It is characterized in that the first part and the second part are attached by screwing.

[0006]

[Action]

 In the structure for mounting the fastening screw for the outdoor case according to the present invention, the waterproof packing with the female screw is the first part and the second part in the screw part for fastening the parts constituting the case to be installed outdoors. They are attached to the counterbore holes in the attachment portion of the screw of and, and the outer shape is deformed by screwing the first component and the second component. As a result, the female threaded waterproof packing comes into close contact with the taper hole of the first part, the counterbore hole of the second part, and the surface of the screw, respectively. Therefore, the attachment structure of the fastening screw for the outdoor housing according to the present invention can prevent moisture from entering the screw portion from the outside.

[0007]

【Example】

 Next, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an attachment structure of a fastening screw for an outdoor housing according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing in detail the periphery of the mounting hole in the mounting structure for the fastening screw for outdoor housing according to the embodiment of the present invention shown in FIG. 1 and 2, parts that are the same as or equivalent to the conventional mounting structure for a fastening screw for an outdoor housing shown in FIG. 3 and described above are denoted by the same reference numerals, and description thereof will be omitted here.

In the mounting structure for a fastening screw for an outdoor casing according to the present embodiment shown in FIGS. 1 and 2, the main structure different from the conventional mounting structure for a fastening screw for an outdoor casing is a waterproof packing 1 with a female screw. Is to be attached to the joint between the plate 3 and the housing 2a in the mounting portion of the screw 4. The waterproof packing with female screw 1 has a female screw hole 1a having a hole diameter slightly larger than the hole diameter of the female screw hole 6b into which the screw 4 is inserted. The housing 2a has a taper hole 6a provided for compressing and deforming the waterproof packing with internal thread 1 toward the center of the circumference of the screw 2. The plate 3 has a counterbore 7a into which the waterproof packing with female screw 1 is inserted, a mounting hole 7 and a waveguide 9.

When the fastening between the housing 2a and the plate 3 is completed, the female threaded waterproof packing 1 comes into contact with the respective surfaces of the taper hole 6a, the screw 4 and the counterbore hole 7a by applying a constant pressure. As a result, it is possible to shield the female screw hole 6b from the water that is trying to enter from the outside.

As described above, according to the attachment structure of the fastening screw for the outdoor housing according to the present embodiment, the external surface of the external surface through the mating surface between the housing 2a and the plate 3 and the mounting hole 7 into which the screw 4 is inserted is prevented. The intrusion can be prevented by the waterproof packing 1 with the female screw.

In addition, in the above-mentioned embodiment according to the present invention, the embodiment in which the housing 2a and the plate 3 are fastened is shown, but the present invention is not limited to the above-described embodiment, and the outdoor housing 2 It can also be applied to the fastening of similar components such as fastening the constituent casing 2a and the casing 2b having the connector 10 for external connection.

[0013]

[Effect of the device]

 As described above, according to the fastening structure for a fastening screw for an outdoor case according to the present invention, a screw is inserted in a screw part for fastening parts constituting a case to be installed outdoors, and the screw for that screw is used. By installing a waterproof packing with internal thread with a built-in internal thread, it is possible to prevent moisture from entering the thread part from the outside, thus preventing corrosion of the thread and attaching / detaching the screw for a long period of time. be able to.

[Brief description of drawings]

FIG. 1 is a perspective view showing an attachment structure of a fastening screw for an outdoor housing according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing in detail the periphery of a mounting hole in the mounting structure for a fastening screw for an outdoor housing according to the embodiment of the present invention shown in FIG.

FIG. 3 is a cross-sectional view showing an example of a conventional attachment structure for a fastening screw for an outdoor housing.

[Explanation of symbols]

 1; waterproof packing with female screw 2; outdoor housing 3; plate 4; screw 5; waterproof packing

Claims (2)

[Scope of utility model registration request] 1. A mounting structure for a fastening screw for an outdoor housing for fastening an outdoor housing composed of a plurality of parts, wherein a first component having a taper hole and a female screw hole, a mounting hole and a counterbore hole are provided. And a second component having an internal thread and a waterproof packing with an internal thread attached to the counterbore hole in the second component and having an internal thread hole, and the first component and the second component are screwed together. Mounting structure for fastening screws for outdoor enclosures, characterized in that 2. The waterproof packing with internal threads is made of a stretchable elastic body, and its outer shape is deformed by screwing the first component and the second component together. Attachment structure for the fastening screws for outdoor enclosures described.