Title:
SPRAY-COATING DEVICE FOR TELESCOPIC BOOM, AND OPERATION MACHINE AND CONTROL VALVE ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2023/050898
Kind Code:
A1
Abstract:
Provided in the present application are a spray-coating device for a telescopic boom, and an operation machine and a control valve assembly. By means of arranging spray-coating assemblies and control valves on telescopic mechanisms, a front spray-coating assembly can be used for spray-coating an adjacent rear telescopic mechanism. Multiple control valves connected in series can be connected or disconnected as boom sections move, and it can be ensured that only the last control valve among the multiple control valves connected in series communicates with the spray-coating assemblies. Thus, the multiple control valves connected in series can replace a grease conveying pipe in the prior art to convey spray-coated objects to the spray-coating assemblies, thereby solving the problem in the prior art. The operation machine provided in the present application is provided with the above-mentioned spray-coating device; therefore, there is also no need to use a long-distance grease conveying pipe to connect to the spray-coating assemblies.
Inventors:
DENG GANG (CN)
ZHANG CHUANBAO (CN)
ZHANG CHUANBAO (CN)
Application Number:
PCT/CN2022/099259
Publication Date:
April 06, 2023
Filing Date:
June 16, 2022
Export Citation:
Assignee:
HUNAN SANY MEDIUM TONNAGE HOISTING MACHINERY CO LTD (CN)
International Classes:
B05B13/02; F16L37/30; F16N21/04
Foreign References:
| CN113941467A | 2022-01-18 | |||
| JP2017063639A | 2017-04-06 | |||
| JPH0522982U | 1993-03-26 | |||
| CN110813583A | 2020-02-21 | |||
| DE102012024290A1 | 2013-06-13 |
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
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