CN212417314U

CN212417314U - Pressure reducing valve of scuba diving apparatus

Info

Publication number: CN212417314U
Application number: CN202020526367.8U
Authority: CN
Inventors: 翁永斌; 王凯; 陈亮
Original assignee: Chinese Peoples Liberation Army Naval Characteristic Medical Center
Current assignee: Chinese Peoples Liberation Army Naval Characteristic Medical Center
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2021-01-29
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to the technical field of valves, and discloses a pressure reducing valve of a scuba, which comprises a valve body, wherein the valve body is communicated with an air inlet pipe, a primary filter screen is fixedly connected in the air inlet pipe, and a cleaning mechanism is arranged in the air inlet pipe; clearance mechanism is including the support frame that is "ten" style of calligraphy, a spring, the support ring, a bearing, the axis of rotation, the flabellum, rectangular brush, the bearing frame, the transfer line, the sealed tube, screens pole and screens subassembly, support frame fixed connection is on being located the interior pipe wall of intake pipe between one-level filter screen and the valve body, one end fixed connection of spring is in the one side that the one-level filter screen was kept away from to the support frame, the other end fixedly connected with support ring of spring, bearing fixed connection is on the interior rampart of support ring, axis of rotation fixed connection is on the inner circle. The utility model discloses utilize the normal oxygen that lets in of intake pipe to exert power to clearance mechanism, when the completion carries out convenient clearance to the one-level filter screen, improved the life of rectangular brush.

Description

Pressure reducing valve of scuba diving apparatus

Technical Field

The utility model relates to the technical field of valves, especially, relate to a scuba pressure reducing valve.

Background

A scuba is a device for diving that uses compressed air. Because the pressure in the water is high, if the pressure in the air bottle is not high, you can hardly breathe, and the compressed air can be used for a long time. When a diver dives, the required oxygen pressure is 145psi, and the pressure of the gas cylinder during oxygen charging can reach 3000psi, so that the pressure of oxygen is reduced by a pressure reducing valve of a scuba diving device. The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and leads the outlet pressure to be automatically kept stable by relying on the energy of the medium.

The retrieval publication (announcement) number CN209164680U discloses a pressure reducing valve of a scuba, which can reduce the pressure of high-pressure oxygen into the pressure of oxygen suitable for a diver to breathe when in use, and can ensure the uniform output of the oxygen, thereby achieving the purpose that the diver uses the oxygen more stably and for a longer time when diving; the proposal still has the following technical defects:

the inside filter screen that sets up of oxygen air inlet can reduce in impurity gets into the relief pressure valve to prolong its life, but along with the increase of live time, accumulational impurity also can increase thereupon on the filter screen, the clearance of being not convenient for influences the normal of oxygen air inlet and ventilates.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the increase along with live time among the prior art, accumulational impurity on the filter screen also can increase thereupon, the clearance of being not convenient for, influences the problem that the oxygen air inlet normally ventilates, and the scuba relief pressure valve that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a pressure reducing valve of a scuba diving apparatus comprises a valve body, wherein an air inlet pipe is communicated with the valve body, a primary filter screen is fixedly connected in the air inlet pipe, and a cleaning mechanism is installed in the air inlet pipe;

the cleaning mechanism comprises a cross-shaped support frame, a spring, a support ring, a bearing, a rotating shaft, a fan blade, a long brush, a bearing seat, a transmission rod, a sealing pipe, a clamping rod and a clamping component, wherein the support frame is fixedly connected to the inner pipe wall of an air inlet pipe between a primary filter screen and a valve body, one end of the spring is fixedly connected to one side of the support frame, which is far away from the primary filter screen, the other end of the spring is fixedly connected with the support ring, the bearing is fixedly connected to the inner ring wall of the support ring, the rotating shaft is fixedly connected to the inner ring wall of the bearing, two ends of the rotating shaft penetrate through the bearing and extend outwards, one end of the rotating shaft, which is far away from the primary filter screen, is connected with the fan blade, one end of the rotating shaft, which is far away from, the utility model discloses a valve body, including the valve body, the support frame, the seal pipe, the bearing frame, the seal pipe, the drive rod, the screens subassembly fixed connection, the seal pipe is inlayed in the center department at one-level filter screen, bearing frame fixed connection keeps away from the one end center department of axis of rotation at rectangular brush, the one end fixed connection of drive rod is on the inner ring wall of bearing frame, the other end of drive rod passes the seal pipe and is connected with the screens pole, the drive rod rotates with the seal pipe to be connected, and drive rod and seal pipe phase-match, screens subassembly fixed connection is on the inner tube wall that valve body one end position was kept away from.

Preferably, the screens subassembly is including two first snap rings that are "U" type and two second snap rings that are "U" type, two first snap ring and two equal symmetry fixed connection of second snap ring are on the interior pipe wall of intake pipe, and two first snap rings and two perpendicular settings of second snap ring, the second snap ring sets up between first snap ring and one-level filter screen, the both ends card of screens pole is on two first snap rings.

Preferably, the annular side wall of the support ring is symmetrically and fixedly connected with limiting rods, limiting holes are formed in the positions, corresponding to the limiting rods, of the support frame, one ends, close to the first-stage filter screen, of the limiting rods extend into the limiting holes, and the limiting rods are connected in the limiting holes in a sliding mode.

Preferably, the rotating shaft is rotatably connected with the support frame, and the rotating shaft is slidably connected with the support frame.

Preferably, a second-stage filter screen is fixedly connected to the inner pipe wall of one end, close to the valve body, of the air inlet pipe.

Preferably, one end of the limiting rod, which is close to the primary filter screen, is fixedly connected with a limiting block, and the limiting block is arranged on one side, which is far away from the support ring, of the support frame.

Compared with the prior art, the utility model provides a scuba relief pressure valve possesses following beneficial effect:

1. this scuba relief pressure valve, through setting up the filter screen, the support frame, a spring, the support ring, a bearing, the axis of rotation, the flabellum, rectangular brush, the bearing frame, the transfer line, the sealing tube, a clearance mechanism is constituteed to screens pole and screens subassembly, when needs clear up the one-level filter screen, adjust screens pole to screens subassembly assigned position, put through oxygen cylinder and intake pipe mutually, oxygen gets into the valve body along the intake pipe, exert power to clearance mechanism simultaneously, the convenient impurity that piles up on the one-level filter screen cleans from the one-level filter screen inboard, when not clearing up the one-level filter screen, rectangular brush does not contact with the one-level filter screen, avoid rectangular brush to take place wearing and tearing, when accomplishing to carry out convenient clearance to the one-level filter screen, the life of rectangular brush has been improved.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses utilize the normal oxygen that lets in of intake pipe to exert power to clearance mechanism, when the completion carries out convenient clearance to the one-level filter screen, improved the life of rectangular brush.

Drawings

Fig. 1 is a schematic structural view of a pressure reducing valve of a scuba according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: the device comprises a valve body 1, an air inlet pipe 2, a filter screen 3, a support frame 4, a spring 5, a support ring 6, a bearing 7, a rotating shaft 8, fan blades 9, a long strip brush 10, a bearing seat 11, a transmission rod 12, a sealing pipe 13, a clamping rod 14, a first clamping ring 15, a second clamping ring 16, a limiting rod 17, a limiting hole 18, a secondary filter screen 19 and a limiting block 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, the pressure reducing valve for the scuba diving comprises a valve body 1, wherein an air inlet pipe 2 is communicated with the valve body 1, a primary filter screen 3 is fixedly connected in the air inlet pipe 2, and a cleaning mechanism is arranged in the air inlet pipe 2;

the cleaning mechanism comprises a cross-shaped support frame 4, a spring 5, a support ring 6, a bearing 7, a rotating shaft 8, a fan blade 9, a strip brush 10, a bearing seat 11, a transmission rod 12, a sealing pipe 13, a clamping rod 14 and a clamping component, wherein the support frame 4 is fixedly connected to the inner pipe wall of the air inlet pipe 2 between the primary filter screen 3 and the valve body 1, one end of the spring 5 is fixedly connected to one side of the support frame 4 away from the primary filter screen 3, the other end of the spring 5 is fixedly connected with the support ring 6, the bearing 7 is fixedly connected to the inner ring wall of the support ring 6, the rotating shaft 8 is fixedly connected to the inner ring wall of the bearing 7, two ends of the rotating shaft 8 penetrate through the bearing 7 and extend outwards, one end of the rotating shaft 8 away from the primary filter screen 3 is connected with the fan blade 9, one end of the rotating shaft 8, the brush end of the strip brush 10 is arranged close to the first-stage filter screen 3, the sealing pipe 13 is embedded in the center of the first-stage filter screen 3, the bearing seat 11 is fixedly connected to the center of one end of the strip brush 10 far away from the rotating shaft 8, one end of the transmission rod 12 is fixedly connected to the inner ring wall of the bearing seat 11, the other end of the transmission rod 12 penetrates through the sealing pipe 13 and is connected with the clamping rod 14, the transmission rod 12 is rotatably connected with the sealing pipe 13, the transmission rod 12 is matched with the sealing pipe 13, the clamping component is fixedly connected to the inner pipe wall of the air inlet pipe 2 far away from one end of the valve body 1, the clamping component is arranged on one side of the first-stage filter screen 3 far away from the support frame 4, the clamping rod 14 is arranged on the clamping component, when oxygen passes through the air inlet pipe 2, the passing oxygen is firstly filtered through the first-stage filter screen 3, when the oxygen, the rotation of the rotating shaft 8 can not drive the transmission rod 12 to rotate through the bearing seat 11, the rotating shaft 8 is supported through the bearing 7, and the clamping rod 14 is clamped on the second clamping ring 16, so that the long strip brush 10 only idles in the air inlet pipe 2 and is not contacted with the primary filter screen 3; when needs clear up one-level filter screen 3, remove on two first snap rings 15 with screens pole 14, drive rectangular brush 10 simultaneous movement through transfer line 12, make rectangular brush 10 contact with one-level filter screen 3's inboard, it rotates with flabellum 9 synchronous to drive bearing 7 inner circle and flabellum through axis of rotation 8 during rectangular brush 10 motion, and then compress spring 5 through support ring 6, do not influence flabellum 9's normal rotation, oxygen is when passing through flabellum 9, flabellum atress 9 drives the inboard of rectangular brush 10 brush one-level filter screen 3 through axis of rotation 8 again, clear up one-level filter screen 3, when not clearing up one-level filter screen 3, rectangular brush 10 does not contact with one-level filter screen 3, avoid rectangular brush 10 wearing and tearing to take place, when accomplishing to one-level filter screen 3 convenient clearance, the life of rectangular brush 10 has been improved.

The clamping component comprises two U-shaped first clamping rings 15 and two U-shaped second clamping rings 16, the two first clamping rings 15 and the two second clamping rings 16 are symmetrically and fixedly connected to the inner wall of the air inlet pipe 2, the two first clamping rings 15 and the two second clamping rings 16 are vertically arranged, the second clamping rings 16 are arranged between the first clamping rings 15 and the primary filter screen 3, two ends of the clamping rod 14 are clamped on the two second clamping rings 16, at the moment, the strip-shaped brush 3 is not in contact with the primary filter screen 3, the strip-shaped brush needs to be in contact with the primary filter screen 3, the clamping rod 14 is firstly pulled outwards, the clamping rod 14 is separated from the second clamping rings 16, a deflection force is applied to the clamping rod 14, the clamping rod 14 rotates 45 degrees and then continues to be pulled outwards, when the clamping rod 14 moves to the first clamping rings 15, the clamping rod continues to rotate 45 degrees towards the original direction, the clamping rod 14 is clamped at the two first clamping rings 15, the strip brush 10 can be made to contact the primary filter screen 3, thereby having a cleaning effect on the primary filter screen 3.

The symmetrical fixedly connected with gag lever post 17 on the annular lateral wall of support ring 6, spacing hole 18 has been seted up to the position that support frame 4 corresponds gag lever post 17, and gag lever post 17 is close to the one end of one-level filter screen 3 and extends to in spacing hole 18, and gag lever post 17 sliding connection is in spacing hole 18, and is spacing to the movement track of support ring 6 for it can only be lateral motion.

The rotating shaft 8 is rotatably connected with the support frame 4, and the rotating shaft 8 is slidably connected with the support frame 4.

The intake pipe 2 is close to the one end of valve body 1 and is fixedly connected with second grade filter screen 19 on the inner tube wall, carries out secondary filter to the air after filter screen 19 filters.

The one end fixedly connected with stopper 20 that gag lever post 17 is close to one-level filter screen 3, and stopper 20 sets up in the one side that support ring 6 was kept away from to support frame 4, prevents that gag lever post 17 from taking place to break away from in spacing hole 18.

In the utility model, when oxygen passes through the air inlet pipe 2, the oxygen passing through is firstly filtered through the primary filter screen 3, when the oxygen passes through the fan blade 9, the fan blade 9 is pushed to rotate, the fan blade 9 drives the strip brush 10 to rotate through the rotating shaft 8, the rotating of the rotating shaft 8 can not drive the transmission rod 12 to rotate through the bearing seat 11, the rotating shaft 8 is supported through the bearing 7, because the clamping rod 14 is clamped on the second clamping ring 16, the strip brush 10 only idles in the air inlet pipe 2 at the moment and does not contact with the primary filter screen 3; when needs clear up one-level filter screen 3, remove on two first snap rings 15 with screens pole 14, drive rectangular brush 10 simultaneous movement through transfer line 12, make rectangular brush 10 contact with one-level filter screen 3's inboard, it rotates with flabellum 9 synchronous to drive bearing 7 inner circle and flabellum through axis of rotation 8 during rectangular brush 10 motion, and then compress spring 5 through support ring 6, do not influence flabellum 9's normal rotation, oxygen is when passing through flabellum 9, flabellum atress 9 drives the inboard of rectangular brush 10 brush one-level filter screen 3 through axis of rotation 8 again, clear up one-level filter screen 3, when not clearing up one-level filter screen 3, rectangular brush 10 does not contact with one-level filter screen 3, avoid rectangular brush 10 wearing and tearing to take place, when accomplishing to one-level filter screen 3 convenient clearance, the life of rectangular brush 10 has been improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A pressure reducing valve of a scuba diving apparatus comprises a valve body (1), wherein an air inlet pipe (2) is communicated with the valve body (1), and a primary filter screen (3) is fixedly connected in the air inlet pipe (2), and is characterized in that a cleaning mechanism is installed in the air inlet pipe (2);

the cleaning mechanism comprises a cross-shaped support frame (4), a spring (5), a support ring (6), a bearing (7), a rotating shaft (8), fan blades (9), a long brush (10), a bearing seat (11), a transmission rod (12), a sealing pipe (13), a clamping rod (14) and a clamping component, wherein the support frame (4) is fixedly connected to the inner pipe wall of the air inlet pipe (2) between the primary filter screen (3) and the valve body (1), one end of the spring (5) is fixedly connected to one side, far away from the primary filter screen (3), of the support frame (4), the other end of the spring (5) is fixedly connected with the support ring (6), the bearing (7) is fixedly connected to the inner ring wall of the support ring (6), the rotating shaft (8) is fixedly connected to the inner ring wall of the bearing (7), and two ends of the rotating shaft (8) penetrate through the bearing (7) and extend outwards, the one end that one-level filter screen (3) was kept away from in axis of rotation (8) is connected with flabellum (9), the one end that flabellum (9) were kept away from in axis of rotation (8) runs through spring (5) and support frame (4) in proper order and is connected with rectangular brush (10), the brush hair end of rectangular brush (10) is close to one-level filter screen (3) and sets up, center department at one-level filter screen (3) is inlayed in sealed tube (13), bearing frame (11) fixed connection is in the one end center department of keeping away from axis of rotation (8) in rectangular brush (10), the one end fixed connection of transfer line (12) is on the inner circle wall of bearing frame (11), the other end of transfer line (12) passes sealed tube (13) and is connected with screens pole (14), transfer line (12) are rotated with sealed tube (13) and are connected, and transfer line (12) and sealed tube (13, screens subassembly fixed connection keeps away from on the inner tube wall of valve body (1) one end position in intake pipe (2), and the screens subassembly sets up the one side of keeping away from support frame (4) in one-level filter screen (3), screens pole (14) set up on the screens subassembly.

2. The pressure reducing valve of the scuba diving mask according to claim 1, wherein the clamping assembly comprises two first clamping rings (15) in a "U" shape and two second clamping rings (16) in a "U" shape, the two first clamping rings (15) and the two second clamping rings (16) are symmetrically and fixedly connected to the inner wall of the air inlet pipe (2), the two first clamping rings (15) and the two second clamping rings (16) are vertically arranged, the second clamping rings (16) are arranged between the first clamping rings (15) and the primary filter screen (3), and two ends of the clamping rod (14) are clamped on the two first clamping rings (15).

3. The pressure reducing valve for the scuba diving mask according to claim 1, wherein the annular side wall of the support ring (6) is symmetrically and fixedly connected with a limiting rod (17), a limiting hole (18) is formed in the position, corresponding to the limiting rod (17), of the support frame (4), one end, close to the primary filter screen (3), of the limiting rod (17) extends into the limiting hole (18), and the limiting rod (17) is slidably connected into the limiting hole (18).

4. A pressure reducing valve for a scuba diving apparatus according to claim 1, wherein the rotating shaft (8) is rotatably connected with the supporting frame (4), and the rotating shaft (8) is slidably connected with the supporting frame (4).

5. A pressure reducing valve for a scuba diving apparatus according to claim 1, wherein a secondary filter screen (19) is fixedly connected to the inner pipe wall of the end of the air inlet pipe (2) close to the valve body (1).

6. The pressure reducing valve for the scuba diving apparatus according to claim 3, wherein one end of the limiting rod (17) close to the primary filter screen (3) is fixedly connected with a limiting block (20), and the limiting block (20) is arranged on one side of the support frame (4) far away from the support ring (6).