JPH0731597U - Diving equipment with back-up switching valve - Google Patents

Abstract

(57) [Summary] [Purpose] A diving equipment with a back-up switching valve that can use one air cylinder for back-up. [Structure] A plurality of cylinder joint openings 17 and 18 are provided in the diving equipment body 12, and air passages 19 and 29 extending from the respective cylinder joining openings 17 and 18 are provided to the collecting passage 3 inside the diving equipment body 12.
The check valve 20 is arranged in each of the air passages 19 and 29 and communicates with the b.
A switching valve 21 for opening and closing the air passage 19 is provided between the cylinder and the cylinder connection port 17, and the operating portion 22a of the switching valve 21 is exposed to the outside of the diving tool body 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a small diving equipment that is used by connecting a plurality of small air cylinders to a diving equipment body.

[0002]

[Prior art]

 Conventionally, the diving equipment 1 is connected to the diving equipment body 2 including a socket 3 and a regulator 4, a mouthpiece 5 connected to the back side of the regulator 4, and a front side of the socket 3, as shown in FIG. And the alarm device 6 is activated. The diving tool 1 is used by connecting air cylinders 8 to each of the four cylinder joint ports 7, 7 ... Provided on the left and right sides of the back surface of the socket 3 in a replaceable manner. Inside the socket 3, air passages (not shown) are extended from the respective cylinder joints 7 and collecting air passages (not shown) for collecting these air passages are provided. This collective air passage communicates with the regulator 4 and the alarm device 6.

The diving tool 1 collects high-pressure air (for example, 200 kg / cm ² ) supplied from the air cylinders 8, 8 ... In a collecting air passage inside the socket 3 and collects the high-pressure air in a regulator 4 It is decompressed by and is guided so that the mass piece 5 is guided. The alarm device 6 emits an alarm sound from the discharge port 6a and transmits an alarm vibration generated by the vibrator 6b to the mouthpiece 5 when the residual air amount in the air cylinder 8 decreases and the air pressure decreases.

[0004]

[Problems to be solved by the device]

 By the way, in the conventional diving equipment 1, since all of the joined air cylinders 8, 8 ... Are in communication with the collective air passage, all the air cylinders 8, 8, ... Are consumed at the same time. The remaining air amounts of all the air cylinders 8, 8 ... Are in the same state. Therefore, in the conventional diving equipment 1, the time from when the alarm device 6 issues an alarm to when the air cylinders 8, 8, ... There was a problem inviting.

In order to solve the above problems, the present invention has an object to provide a diving equipment with a back-up switching valve, which can be used as one back-up air cylinder.

[0006]

[Means for Solving the Problems]

 According to the means adopted by the present invention, a plurality of cylinder joint openings are provided in the body of the diving equipment, and the air passages extending from the respective cylinder joint openings are communicated with the collecting passages inside the body of the diving equipment. In a diving equipment with a check valve, a switching valve for opening and closing the air passage is provided between the check valve and the cylinder connection port in any one of the air passages. This is a diving equipment with a back-up switching valve that is exposed to the outside of the equipment body.

[0007]

[Action]

 An air cylinder is joined to each cylinder connection port at the time of use. Diving is performed with the switching valve closed, and if the air in the air cylinder that is in use is depleted as the diving progresses, operate the switching valve to open it. With the opening operation of this switching valve, air is supplied from the air cylinder filled with air, and the dive can be maintained. During this time, finish the dive and replace the empty air cylinder with a new one. The air cylinder connected to the cylinder joint opening leading to the air passage provided with the switching valve can be used for backup. As a result, there is no residual air volume and no breathing is possible.

[0008]

【Example】

 Hereinafter, a diving equipment with a back-up switching valve according to the present invention (hereinafter referred to as "the diving equipment of the present invention") will be described based on the embodiments shown in Figs. 1 to 7. As shown in FIGS. 1 and 2, the improvement of the present invention diving tool 11 of the embodiment is between the check valve 20 and the cylinder connection port 17 in the air passage 19 extending from any one cylinder connection port 17. In addition, a switching valve 21 for opening and closing the air passage 19 is provided, and an operating portion 22a of the switching valve 21 is exposed to the outside of the diving tool body 12.

The socket 3 forming the body of the diving equipment 12 is provided therein with four air passages 3a, 3a ... And a collecting passage 3b that collects these air passages 3a, 3a. The collecting passage 3b communicates with the regulator 4 and the alarm device 6 as in the conventional case. One air passage 3a communicates with the cylinder joint port 17 via an air passage 19 described later. Each of the other three air passages 3a, 3a, 3a communicates with the cylinder joining port 18 via an air passage 29 described later.

As shown in FIGS. 3 to 5, the cylinder connecting port 17 is formed as a female screw at one end of the cylinder connecting member 23, and the cylinder socket 13 of the air cylinder 8 is screwed into the cylinder connecting port 17. A plug 26 is screwed to the bottom portion 17a of the bomb joint port 17. This plug 26 presses the valve rod 27a of the normally closed on-off valve 27 attached to the cylinder socket 13 in the valve opening direction when the cylinder socket 13 is screwed into the cylinder joint port 17.

The cylinder connector 23 is formed of a lightweight material such as a synthetic resin material, and the connecting screw portion 24 at the other end is screwed into the socket 3 of the diving tool body 12. The check screw 20 is screwed to the inside of the joint screw portion 24. The check valve 20 prevents the backflow of air from the air passage 3a of the socket 3 to the air passage 19 of the cylinder connector 23 described later.

In the cylinder connector 23, a valve body insertion hole 25 that forms the switching valve 21 is provided at an intermediate portion thereof, and a spool valve body 22 is attached to the valve body insertion hole 25. In the cylinder connector 23, an inflow port 25b and an outflow port 25c are opened on an inner peripheral surface 25a forming a valve body insertion hole 25. The spool valve body 22 has a valve closed position (see FIG. 3) where the inlet 25b and the outlet 25c are not in communication with each other, and an open position (see FIG. 4) where the inlet 25b and outlet 25c are in communication with each other. ) To slide. This sliding operation is performed by the user manually operating the operating portion 22a of the spool valve body 22. In the cylinder connector 23, an air passage 19 is formed between the plug 26 and the check valve 20 via the switching valve 21, and the air passage 19 communicates with the air passage 3 a of the socket 3. There is. O-ring guides 28, 28 are arranged in the middle of the air passage 19.

As shown in FIGS. 6 and 7, the cylinder joint port 18 is formed as a female screw at one end of the cylinder joint 33, and the cylinder socket 13 of the air cylinder 8 is screwed into the cylinder joint port 18. A plug 26 is screwed to the bottom portion 18a of the bombe joint port 18. The plug 26 presses the valve rod 27a of the normally closed on-off valve 27 attached to the cylinder socket 13 toward the valve opening direction when the cylinder socket 13 is screwed into the cylinder joint port 18.

The cylinder connector 33 is formed of a lightweight material such as a synthetic resin material, and the connecting screw portion 34 at the other end is screwed to the socket 3 of the diving tool body 12. The check screw 20 is screwed to the inside of the joint screw portion 34. In the cylinder connector 33, an air passage 29 is formed between the plug 26 and the check valve 20, and the air passage 29 communicates with the air passage 3 a of the socket 3.

Next, the operation of the diving equipment 11 of the present invention according to the embodiment will be described in accordance with the usage procedure. First, in the underwater diving implement 11 of the present invention, a new air cylinder 8 is joined only to the cylinder connection port 17 through the cylinder socket 13. At the time of this joining, the switching valve 21 should be closed. Next, the user operates the switching valve 21 in the open state to supply high-pressure air from the air cylinder 8 to the collecting passage 3b of the diving tool body 12. The air supplied to the collecting passage 3b is supplied to the mouthpiece 5 and the alarm device 6 via the reguulator 4, but since the check valves 20, 20, 20 are provided, the cylinder connecting ports 18, 18 are provided. , 18 does not flow back. After a lapse of an appropriate time, the user operates the switching valve 21 in a closed state, and as the pressure of the residual air in the collecting passage 3b drops, the user checks whether or not the alarm device 6 issues a predetermined alarm. . If it is confirmed that the alarm device 6 is normal, a new air cylinder 8 is connected to each of the cylinder connection ports 18, 18 and 18 via the cylinder socket 13. The three joined air cylinders 8, 8 and 8 supply high pressure air to the collecting passage 3b of the body of the diving equipment 12 so that the diving equipment is ready for diving.

When diving is performed with the switching valve 21 in the closed state and the air in the three air cylinders 8, 8, 8 being used disappears as the diving progresses, and the alarm device 6 gives an alarm, use The person operates the switching valve 21 to open it. With the opening operation of the switching valve, air is supplied from the air cylinder 8 filled with air, and the diving can be maintained. During this time, the dive is finished and the empty air cylinders 8,8,8 are replaced with new ones. In this way, the air cylinder 8 connected to the cylinder joining port 17 leading to the air passage 19 provided with the switching valve 21 can be used for backup. As a result, there is no possibility of being unable to breathe because there is no residual air volume, and you can safely dive.

[0017]

[Effect of device]

 As described above in detail, in the diving implement of the present invention, the air cylinder connected to the cylinder joint opening leading to the air passage provided with the switching valve can be used for backup. As a result, the diving equipment of the present invention has no practical inability to breathe due to lack of residual air volume, and has the practical effect of being able to safely dive.

[Brief description of drawings]

FIG. 1 is a side view showing an entire embodiment of a diving equipment of the present invention.

FIG. 2 is a schematic diagram showing an air passage of the embodiment.

FIG. 3 is a plan view showing an enlarged cross section of a main part of the embodiment, showing a closed state of a switching valve.

FIG. 4 is a plan view showing an enlarged cross section of a main part of the embodiment, showing an open state of a switching valve.

FIG. 5 is a plan view showing an enlarged cross-section of a main part of the embodiment, showing a state before the air cylinder is joined.

FIG. 6 is a plan view showing an enlarged cross-sectional view of a main part of an air passage that is not provided with a switching valve in the embodiment.

FIG. 7 is an enlarged cross-sectional plan view showing a main part of an air passage not provided with a switching valve in the embodiment, showing a state before joining air cylinders.

FIG. 8 is a side view showing an overall appearance of a conventional diving equipment.

[Explanation of symbols]

 3b ... Collecting air path 12 ... Diving tool body 17, 18 ... Cylinder joint port 20 ... Check valve 21 ... Switching valve 22a ... Operation part

Claims (1)

[Scope of utility model registration request] 1. A diving equipment body is provided with a plurality of cylinder joint openings, and an air passage extending from each of the cylinder joining openings is communicated with a collecting passage inside the diving equipment body, and a check valve is provided in each air passage. In the diving equipment arranged, a switching valve for opening and closing this air passage is provided between the check valve and the cylinder connection port in any one of the air passages, and the operation part of this switching valve is provided outside the diving equipment main body. A diving equipment with a back-up switching valve, which is characterized by