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Patent Searching and Data


Title:
MANHOLE COVER, AND OPERATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/023849
Kind Code:
A1
Abstract:
A manhole cover, comprising a fastening device (10), and a cover device (20). The fastening device (10) comprises a support component (11). The support component (11) forms a communication channel (111). The cover device (20) comprises a cover assembly (21) and a lock assembly (22). The cover assembly (21) comprises a cover component (211). The lock assembly (22) comprises at least one lock component (221). Each lock component (221) is separately and operably disposed at a lower portion of the cover component (211), such that when the cover component (211) is mounted to an upper portion of the support component (11) to close the communication channel (111), an operation end of said lock component (221) is separately operated to move a locking end of each lock component (221) to below the support component (11), or the locking end of each lock component (221) is moved away from below the support component (11). Also provided is an operation method of a manhole cover.

Inventors:
BAO, Zongjiang (7th Building, No.299 of Wanhang Road of Pudong New District, Shanghai 3, 201313, CN)
Application Number:
CN2016/097544
Publication Date:
February 08, 2018
Filing Date:
August 31, 2016
Export Citation:
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Assignee:
SHANGHAI SHENGXIANG SCIENCE AND TECHNOLOGY CO., LTD. (7th Building, No.299 of Wanhang Road of Pudong New District, Shanghai 3, 201313, CN)
International Classes:
E02D29/14
Attorney, Agent or Firm:
NINGBO RAYMOND IP AGENCY FIRM (Suite 1501, 555 Rili Middle Road ShouNan Subdistrict, Yinzhou Distric, Ningbo Zhejiang 0, 315100, CN)
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