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Semi-open explosion-proof well cover for launch position

A semi-open manhole cover technology, applied in water conservancy projects, artificial islands, underwater structures, etc.

Inactive Publication Date: 2020-01-21
中国人民解放军63926部队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a semi-open explosion-proof manhole cover for launch sites to solve the technical problem of how to reduce the safety hazards of manhole covers near the launch site

Method used

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  • Semi-open explosion-proof well cover for launch position
  • Semi-open explosion-proof well cover for launch position
  • Semi-open explosion-proof well cover for launch position

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Embodiment Construction

[0018] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] This embodiment proposes a semi-open explosion-proof manhole cover for launching positions, which consists of a well base 8, a manhole cover 1 and a locking device, and is used in conjunction with a pull ring 9. When building the well, pour a C25 concrete ring beam 7 with a thickness of about 400 mm to 600 mm, and pre-embed four steel bars evenly. The well base 8 is welded to the pre-embedded steel bars and fixed.

[0020] The well cover 1 is connected to the edge of the well base 8 through the hinge 10 arranged on the edge. The main body of the well cover 1 is provided with a plurality of exhaust holes 2 through the front and back, and a pull ring 9 connected with the push rod 4 on the back of the well cover is ...

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Abstract

The invention discloses a semi-open explosion-proof well cover for a launch position. Locking buckles are symmetrically arranged on the two sides of a chamber body, exhausting holes are formed in a well cover main body, a pulling ring is arranged at the center of the front surface of the well cover, and a locking device is arranged on the back surface of the well cover; and the semi-open explosion-proof well cover comprises a pushing lever, a spring, two locking tongues and two positioning devices, the pushing lever is an elliptic steel plate, a round hole is formed in the center of the steelplate, a bolt penetrates through the round hole and is connected with the pulling ring on the back surface of the well cover after arranging the spring in a sleeving mode, the roots of the two lockingtongues are correspondingly welded and fixed to the two sides of the pushing lever, the ends of the two locking tongues correspond to the locking buckles on the two sides of the chamber body correspondingly, the locking tongues are inserted into the locking buckles or removed out of the locking buckles along with rotating of the pushing lever, and the two positioning devices are fixed on the backsurface of the well cover and buckled on the outer sides of the middles of the locking tongues correspondingly and used for limiting moving directions of the locking tongues. The semi-open explosion-proof well cover is solid and reliable in structure and convenient to load and unload, the rocket shock wave can be effectively resisted during launching of a rocket, and safety hazards dues to the fact that the shock wave strikes the well cover are avoided.

Description

technical field [0001] The invention belongs to the technical field of space launch ground facilities and equipment, and in particular relates to a semi-open explosion-proof manhole cover used for a launch site, which is controlled by a pull ring to open and lock the manhole cover. Background technique [0002] The current rocket launch sites generally use traditional manhole covers, with symmetrical pre-embedded bolts on both sides, and then Z-shaped iron plates to fix the manhole covers. When the rocket is launched, the strong airflow generated will have an obvious impact on the ground. However, the existing manhole cover of the launch site cannot effectively resist the positive energy of the shock wave, and is easily damaged by the powerful shock air flow, or flies away from the wellhead, which cannot guarantee stability and reliability, which may cause safety hazards and accidents. It is necessary to use a wrench to unscrew the nut from time to time, and it is affected ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/14
CPCE02D29/1427E02D29/1463
Inventor 董琦王晶王德利刘凯歌谭凯龙王亚非吉连勇李龙刚罗卫华
Owner 中国人民解放军63926部队
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