Title:
HEATING AND VENTILATION METAL PIPELINE REPAIR DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/231266
Kind Code:
A1
Abstract:
A heating and ventilation metal pipeline repair device, which comprises a housing (1). Four first rotating grooves (2) are provided at the upper end of the housing (1). A first fixing block (3) is fixedly arranged on each of the first rotating grooves (2). A first rotating rod (4) is rotatably arranged on each first fixing block (3). A clamping arm set is arranged on each first rotating rod (4). A second fixing block (5) is fixed arranged on the housing (1). A first sliding groove (6) is provided on the second fixing block (5). A first electromagnetic sliding block (7) is slidably arranged in the first sliding groove (6). A first connecting block (8) is fixedly arranged below the first electromagnetic sliding block (7). The first connecting block (8) is connected to a first sliding block (9). A second rotating rod (10) is rotatably arranged on the first sliding block (9).
Inventors:
DU HAIHAI (CN)
WU LANLAN (CN)
WU LANLAN (CN)
Application Number:
PCT/CN2022/124794
Publication Date:
December 07, 2023
Filing Date:
October 12, 2022
Export Citation:
Assignee:
DU HAIHAI (CN)
International Classes:
F16L55/18; B24B5/35; F16J15/46; F16L55/17; F16M11/42
Foreign References:
| CN114833654A | 2022-08-02 | |||
| CN214274909U | 2021-09-24 | |||
| CN109483568A | 2019-03-19 | |||
| CN114194309A | 2022-03-18 | |||
| CN211525828U | 2020-09-18 | |||
| US20090020180A1 | 2009-01-22 |
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