JPS6381948U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 6 show the first embodiment of this invention, in which Figure 1 is a longitudinal cross-sectional side view of a pressure-filled box equipped with a mixed gas breathing device, and Figure 2 is a mixed gas pipe on the ceiling of the work room. and a plan view showing the arrangement of compressed air supply pipes, Fig. 3 is a diagram showing the connection state when breathing a mixed gas from a mixed gas supply pipe using a breathing mask, and Fig. 4 shows the connection state when breathing a mixed gas from a portable cylinder using a breathing mask. Figure 5 is a longitudinal side view showing the state of connection when breathing mixed gas; Figure 5 is a vertical side view showing the state in which the ventilation plug and ventilation socket are connected; and Figure 6 is a longitudinal cross-sectional view showing the state in which the ventilation plug and the ventilation socket are separated. FIG. FIG. 7 is a longitudinal side view showing a pneumatic submersible box having a mixed gas breathing device according to the second embodiment of this invention, and FIG. 8 is a longitudinal sectional side view showing a pneumatic submersible case having a mixed gas breathing device according to the third embodiment of this invention. Figure, No. 9
The figure is a longitudinal sectional side view showing a mixed gas breathing apparatus according to a fourth embodiment of the invention. FIG. 10 is a longitudinal side view showing a pneumatic envelope having a conventional mixed gas breathing device. In the figure, 1 is the pressure case, 2 is the work chamber, 3 is the mixed gas air pipe, 4 is the manlock, 5 is the mixed gas air pipe, 6 is the breathing mask, 7 is the intake hose, 8 is the ventilation plug, and 9 is the ventilation socket. , 10 is an on-off valve,
11 is a ceiling slab, 12 is a mixed gas pipe, 14 is a supply pipe, 15 is a compressed air supply pipe, 19 is a man shaft, 20 is a compressed air supply pipe, 21 is a spiral staircase for work elevation, 22 is a supply pipe, 25 and 28 is an exhalation hose, 30 is a plug receiving hole, 32 is a spring, 35
is a valve opening member, 36 is a locking sphere, 37 is a locking sleeve, 38 is a portable cylinder, 39 is a mixed gas supply hose, 40 is a reflux hose, 43 is a mixed gas pipe, and 44 is a mixed gas supply pipe. be.

Claims (1)

[Scope of utility model registration request] A plurality of mixed gas air pipes 3 are provided in the working chamber 2 of the pneumatic submersible 1, and a mixed gas air pipe 5 is also provided within the manlock 4 of the pneumatic submersible 1, and the ends of each mixed gas air pipe 3, 5 are provided. is connected to a common ventilation socket 9 to which a ventilation plug 8 connected to the end of the intake hose 7 of the respiratory mask 6 can be connected, and the ventilation socket 9 is automatically opened when the ventilation plug 8 is inserted. 1. A pneumatic submersible having a mixed gas breathing device, characterized in that it is equipped with an on-off valve 10 that is configured to operate as an open/close valve.