CN2154892Y

CN2154892Y - Quick dual-function lock for pressure vessel

Info

Publication number: CN2154892Y
Application number: CN 93212239
Authority: CN
Inventors: 张克岩; 陈秀平
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-17
Filing date: 1993-05-17
Publication date: 1994-02-02
Anticipated expiration: 2003-05-17

Abstract

The utility model relates to a quick-open door dual-safety lock for a pressure vessel, comprising the supporting frame of a square casing body. A guide bar is threaded through circular holes on the upper and the lower bottom surfaces of the supporting frame and is hinged with a lock hook; the guide bar on the lower part of the lock hook is provided with a supporting spring; the lock hook is hinged on the supporting frame; a locking shaft is fixed between reinforcing plates on the front and the rear inner surfaces of the square casing body; a cylinder arranged in the vessel is connected to the vessel wall through outer screws; the extended end of a cylinder shaft is used for supporting the supporting end of the lock hook. The utility model can be widely used as the dual-safety lock for a high pressure sterilizer, a high-pressure oxygen cabin and a disease pork treatment cylinder.

Description

Quick dual-function lock for pressure vessel

The utility model relates to the locking device that pressure vessel opens the door.

Fast opening type pressure container is widely used in chemical industry, light industry, the crux production equipment of industries such as weaving building materials and health care, owing to there is not effective safe locking device at present, pressure vessel gate can not realize safe and reliable locking and the explosion accident that produces accounts for 1/3rd of total explosion accident, this problem has become the focus that people pay close attention to, in order to address this problem, people have done multiple effort, the patent application that one key name is called " pressure vessel gate opens and closes self-con-tained unit and system " is disclosed for No. 88221041.6 as Chinese patent, propose a kind of pressure vessel gate and opened and closed self-con-tained unit and system, by inserting the door bolt hold-down mechanism, hydraulic control system and electric-control system three parts constitute, switch door speed can be regulated with the need, simple to operate, safety, accurate, the hand-hydraulic operating mechanism that is equipped with, can guarantee under power-off condition, still to realize keying to pressure vessel gate, this device can be realized the locking that pressure vessel opens the door, reach the purpose of insurance, but this apparatus structure complexity, the cost height, operation inconvenience, especially the scope of application is single, only be applicable on the bolt inserted type pressure vessel, apply very difficult.

Task of the present utility model is: overcome the deficiencies in the prior art, design the Lock with double safety guard that is applicable to all pressure vessel of quick opening door structures a kind of simple in structure, with low cost, easily manufactured.

Task of the present utility model with as realize as mode: the pressure vessel of quick opening door Lock with double safety guard comprises a square housing bearing support, guide peg is equipped with in the hole, garden of passing bottom surface on the bearing support, be hinged with latch hook on the guide peg, be positioned at below the latch hook and on the guide peg support spring be housed, latch hook links to each other with square housing bearing support by rotating shaft, before the side's of being positioned at housing upper surface guide peg push pedal is housed, be fixed with lock shaft between the stiffener before and after the side's of being fixed on housing on the inner surface, cylinder by external screw thread be connected with container all-in-one-piece flange on, the external part of cylinder axis is used to support the support end of latch hook.

The utility model is owing to adopt the cylinder projecting shaft to support the support end of latch hook, thereby as long as there is the pressure cylinder axle just to stretch out the support latch hook in the container it can not be rotated like this, play the effect of dual fail-safe, realize to adorn safely the purpose of locking, because structure of the present utility model is fit to the quick opening structure of various pressure vessels, so applied range.

Fig. 1 is the utility model duty view;

Fig. 2 is the vertical view of Fig. 1;

A most preferred embodiment of the present utility model, as figure, the pressure vessel of quick opening door Lock with double safety guard, comprise a square shell bearing support 9, pass the hole, garden that bottom surface has on it guide peg is housed, be hinged with latch hook 2 on the guide peg, be positioned at below the latch hook and on the guide peg support spring 10 be housed, latch hook links to each other with square housing by rotating shaft 11, before the side's of being positioned at housing upper surface guide peg push pedal 3 is housed, be fixed with 5, one cylinders 8 of lock shaft between the stiffener before and after the side's of being fixed on housing on the inner surface and be connected the support end that is used to support latch hook with the external part 11 of container all-in-one-piece flange 6 upper cylinder axles by external screw thread, the locking bail of latch hook is locked on the device door 1.

The course of work of this device is: the device of closing presure container behind the door, latch hook enters into two ends naturally and hooks state (rely on this moment self strength can't opening device door) and when pressurization exhaust hood piston forward in pressure vessel advances latch hook is blocked, do not return as long as have pressure just pushing away cylinder piston in the container, container just can't be opened.After work finishes,, latch hook is lifted, push plate, just the device door can be opened the playback of air scavenge in the pressure vessel (inner no pressure) cylinder piston.

Claims

1, a kind of pressure vessel of quick opening door Lock with double safety guard, it comprises latch hook and the retaining mechanism thereof that is supported on the bracing frame, it is characterized in that: the latch hook support is side's housing, guide peg is equipped with in the hole, garden of bottom surface on the side's of passing housing, guide peg and latch hook are hinged, be positioned at below the latch hook and on the guide peg support spring be housed, latch hook links to each other with square housing by rotating shaft, the side's of being positioned at housing upper surface, push pedal is housed before the guide peg, be fixed with lock shaft between the stiffener before and after the side's of being fixed on housing on the inner surface, cylinder by external screw thread be connected with container all-in-one-piece blind flange on, the external part of cylinder axis is used to support the support end of latch hook.