JPH0434004U

JPH0434004U -

Info

Publication number: JPH0434004U
Application number: JP7384790U
Authority: JP
Priority date: 1990-07-13
Filing date: 1990-07-13
Publication date: 1992-03-19

Description

[Brief explanation of drawings]

第１図は本考案に係る広範囲探査用アンテナケ
ースの一実施例を示す縦断面図、第２図はアンテ
ナケース内部の縦断面図、第３図はシールドマシ
ンへのアンテナケース取付概要を示す説明図、第
４図は地中レーダによる障害物探査原理の説明図
、第５図及び第６図は障害物探査例を示す図表、
第７図は、従来のアンテナケース取付を示す縦断
面図、第８図は従来のアンテナケース内部の縦断
面図である。２……アンテナケース、３……ウオームギヤ、
４……支持ピン、５……支持台、６……駆動用モ
ータ、７……ウオーム、８……保護板。 Fig. 1 is a longitudinal cross-sectional view showing an embodiment of the antenna case for wide area exploration according to the present invention, Fig. 2 is a longitudinal cross-sectional view of the inside of the antenna case, and Fig. 3 is an explanation showing an outline of installing the antenna case to a shield machine. Figure 4 is an explanatory diagram of the principle of obstacle detection using underground radar, Figures 5 and 6 are charts showing examples of obstacle detection,
FIG. 7 is a vertical cross-sectional view showing the attachment of a conventional antenna case, and FIG. 8 is a vertical cross-sectional view of the interior of the conventional antenna case. 2... Antenna case, 3... Worm gear,
4...Support pin, 5...Support stand, 6...Drive motor, 7...Worm, 8...Protection plate.

Claims

[Scope of utility model registration request]

During shield excavation, an antenna that non-destructively searches for obstacles buried underground over a wide area, supports the antenna case that houses the antenna, the protection plate that protects the antenna case, and the antenna case so that they can rotate freely. a support base, and an antenna case rotation mechanism, the rotation mechanism including a drive motor mounted on the support base, a worm driven by the motor, and a worm disposed on the antenna case, An antenna for wide range exploration characterized by comprising a worm gear meshing with the worm.