A barrel lid self-locking device
A technology of self-locking device and barrel cover, which is applied in packaging, locking equipment, transportation and packaging, etc. It can solve the problems of poor safety and reliability, lack of self-locking device for barrel covers, etc., so as to improve work efficiency and ensure equipment stability , reducing the effect of the program
Active Publication Date: 2021-04-20
CHINA NUCLEAR POWER ENG CO LTD
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Problems solved by technology
The lid of this type of barrel lacks a self-locking device, and the safety and reliability are poor
Method used
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[0023] Taking the double-lid sealing device as an example below, the double-lid sealing device includes an outer barrel-lid sealing device, an inner barrel-lid sealing device, and may further include a self-locking device. Such as figure 1 As shown, the outer bung sealing device includes an outer bung turntable 1, and the outer bung turntable 1 is provided with grooves with different shapes in multiple sections (see Figure 4 ), the outer bung bearing 2 is arranged in the groove of the outer bung turntable 1, the inner side of the groove is the outer bung support 3, the outer bung 13 is fixedly connected with the outer bung support 3, and the outer bung bearing 3 is connected to the outer bung The pull rod 4 is provided with an arc groove adapted to the end of the outer pull rod 4 on the outer bung flange 14 fixedly connected with the staving (see image 3 ). The described inner bung sealing device comprises an inner bung turntable 5, and the inner bung turntable 5 is provid...
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The invention relates to a self-locking device for a barrel lid of a radioactive waste storage barrel, which is arranged on a barrel lid sealing device. The barrel lid sealing device includes a barrel lid turntable and a telescopic rod, and the center of the barrel turntable is provided with a rotating shaft, which rotates under the drive of the rotating shaft. At the same time, it drives the telescopic rod to move, so that the end of the telescopic rod enters or escapes from the arc groove of the bung flange fixedly connected with the barrel body; the rotating shaft includes a shaft sleeve and a shaft core, and a shaft core is arranged between the shaft sleeve and the shaft core Return spring, the shaft core can move downward in the shaft sleeve under the action of pressing down and compress the return spring of the shaft core, and can be reset upwards through the return spring of the shaft core after the action of pressing down is released; The pin shaft vertically upwards has pin holes corresponding to the different positions of the pin shaft at the bottom of the bung support. The invention can lock the bung lid turntable at different positions where the bung lid is sealed or opened, thereby ensuring the stability of the equipment in the state of sealing or opening the lid, and making related operations safer and more reliable.
Description
technical field [0001] The invention relates to a radioactive waste storage device, in particular to a barrel lid self-locking device for a radioactive waste storage barrel. Background technique [0002] At present, most of the radioactive concentrates and waste resins produced in domestic nuclear power plants and nuclear fields are solidified with cement to form cement solids for permanent disposal. Put the waste in a 400L steel drum after treatment. The steel drum needs to be sealed to prevent the spread of radioactive substances. When the dose rate on the outer surface of the steel drum is higher than 2mSv / h, the steel drum needs to be placed in a shielded container with sufficient thickness to prevent the spread of radioactive substances. To avoid leakage of radioactive substances during transportation and storage, shielded containers must also be sealed and then transferred to the temporary storage area for radioactive solid waste. In previous nuclear power projects, t...
Claims
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IPC IPC(8): B65D55/02B65D90/66
CPCB65D55/02B65D90/66
Inventor 刘国彪石兵李媛丁磊张海春周洪琦郭建伟
Owner CHINA NUCLEAR POWER ENG CO LTD