Quantitative flow adjustable cylinder valve

Abstract

The utility model provides a quantitative flow adjustable cylinder valve, and belongs to the technical field of cylinder valves. The technical problem that an existing oxygen cylinder valve only has one flow adjusting function is solved. A quantitative flow adjustable cylinder valve comprises an upper valve body, a lower valve body and a pressure reduction cavity, the upper valve body and the lower valve body are fixedly connected, the pressure reduction cavity is defined by the upper valve body and the lower valve body, a pressure reduction piston and a pressure spring are arranged in the pressure reduction cavity, an air outlet is formed in the upper valve body, and an air inlet is formed in the lower valve body. A pressure reducing flow channel communicated with the air inlet hole and the air outlet hole is arranged on the pressure reducing piston, a rotatable adjusting plate is further arranged in the pressure reducing cavity, a quantifying plate is fixedly connected to the adjusting plate, a plurality of quantifying holes with different sizes are formed in the quantifying plate, and the quantifying holes are communicated with the air outlet hole. According to the utility model, the flow is customized as required, the effect of adjusting the flow is achieved by controlling the flow area, and different flows can be better adjusted for users with different breathing conditions.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bottle valve, especially quantitative flow adjustable bottle valve. BACKGROUND

[0002] The oxygen cylinder valve is a valve for controlling the oxygen in and out of the oxygen cylinder. The oxygen cylinder valve in the prior art is inconvenient to adjust the flow in various gears during use, and generally only has one flow mode, which is difficult to meet the precise control of the flow of oxygen by users with different needs. Therefore, how to provide a bottle valve with adjustable quantitative flow gears to solve the above technical problems. SUMMARY

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a bottle valve with adjustable quantitative flow.

[0004] The purpose of the utility model can be achieved by the following technical scheme: a bottle valve with adjustable quantitative flow, comprising a fixedly connected upper valve body and lower valve body and a decompression cavity formed by the two, a decompression piston and a pressure spring are arranged in the decompression cavity, an air outlet hole is arranged on the upper valve body, an air inlet hole is arranged on the lower valve body, a decompression flow channel communicating the air inlet hole and the air outlet hole is arranged on the decompression piston, a rotatable adjusting plate is further arranged in the decompression cavity, a fixedly connected quantitative plate is arranged on the adjusting plate, a plurality of quantitative holes of different sizes are arranged on the quantitative plate, and the quantitative holes communicate with the air outlet hole.

[0005] Further, the air outlet hole is located at the upper part of the upper valve body, a rotating handle is rotatably arranged in the upper valve body, one end of the rotating handle extends into the decompression cavity and is fixedly connected with the adjusting plate, the other end of the rotating handle extends out of the upper valve body and is fixedly connected with an adjusting knob, a locking sleeve is arranged between the adjusting knob and the upper valve body, the quantitative plate is located between the adjusting plate and the inner wall of the decompression cavity, and a sealing element is arranged between the quantitative plate and the inner wall of the decompression cavity.

[0006] Further, the upper valve body is provided with two annular sealing grooves arranged symmetrically with respect to the axis of the quantitative plate, the sealing element is located in the annular sealing groove, and the hole of the air outlet hole is located in one of the annular sealing grooves.

[0007] Further, an annular groove communicating with the quantitative hole and a gas passing hole directly communicating with the annular groove are arranged on the adjusting plate, and the gas passing hole and the quantitative hole are located on the upper and lower sides of the annular groove.

[0008] Further, the quantitative plate is provided with 2-12 quantitative holes of different sizes.

[0009] Further, the lower valve body is provided with a gauge interface for installing a pressure gauge, a mounting hole, an inflation hole, a pressure reduction hole and an inclined connecting hole, the inclined connecting hole is always communicated with the mounting hole, the pressure reduction hole and the inflation hole, the gauge interface is always communicated with the air inlet hole, and the inclined connecting hole and the air inlet hole are controlled to be connected or disconnected through an opening and closing switch arranged in the mounting hole.

[0010] Further, the air inlet hole is protruded with a sealing boss towards the opening and closing switch, the opening and closing switch comprises an opening and closing rotating block and a rotating handle, the opening and closing rotating block and the rotating handle are slidably connected through a clamping block and a clamping groove, the opening and closing rotating block is threadedly connected with the mounting hole, and a sealing pad block is fixed to one end of the opening and closing rotating block close to the sealing boss, and the sealing pad block abuts against or is away from the sealing boss.

[0011] Further, the inflation hole is sealingly fixed with an inflation device, the inflation device comprises an inflation seat and a one-way valve arranged in the inflation seat, and the inflation seat and the inflation hole are sealingly fixed.

[0012] Further, the lower valve body is provided with a quick charging hole communicated with the pressure reduction cavity, the quick charging hole is always communicated with the pressure reduction flow channel, and a quick charging connector is arranged in the quick charging hole.

[0013] Further, the quick charging connector comprises a quick charging seat and a movable connecting piece, an inclined sliding hole is arranged in the middle of the quick charging seat, a stop ball, a stop plate and a return spring are arranged on the inclined sliding hole, the movable connecting piece is protruded with a stop block inwardly, the stop block is movably clamped to the outer periphery of the quick charging seat, and the stop block can block the inclined sliding hole when the movable connecting piece slides.

[0014] Compared with the prior art, the technical effects of the utility model are as follows: I. After the opening and closing switch is opened, the high-pressure oxygen in the bottle is reduced in pressure by the pressure reduction piston, reaches the oxygen pressure that can be accepted by the human body, and through the different sizes of the quantitative holes on the quantitative plate, the flow rate can be adjusted to better adjust the flow rate of different users in different breathing conditions. The quantitative plate and the air outlet hole are sealed by a sealing element, the quantitative hole is communicated with the air outlet hole only when the quantitative plate is rotated to the set position, so that one hole corresponds to one flow rate, and the adjustment is accurate.

[0015] II. The quantitative plate is uniformly provided with 2-12 quantitative holes of different sizes, the flow rate is customized according to the need, and the flow rate is adjusted in the way of controlling the flow area. The quantitative plate is further provided with a plugging part, and the rotating handle can realize 360-degree rotation adjustment for closing and flow rate adjustment.

[0016] III. In the case that the oxygen in the oxygen cylinder is insufficient, the quick charging connector can be used to supplement oxygen from other oxygen terminals or other steel cylinders. DRAWINGS

[0017] Figure 1 is a sectional view of the utility model Figure 1 .

[0018] Figure 2 is the sectional view of the utility model Figure 2 .

[0019] Figure 3 is the enlarged view of A of the utility model.

[0020] Figure 4 is the schematic diagram of the ration plate of the utility model.

[0021] Figure 5 is the perspective view of the utility model.

[0022] Figure number mark: 1, upper valve body;101, air outlet hole;102, sealing groove;2, lower valve body;201, air inlet hole;202, table interface;203, mounting hole;204, inflation hole;205, pressure reduction hole;206, inclined connecting hole;207, sealing boss;208, quick charging hole;3, pressure reduction cavity;4, pressure reduction piston;401, pressure reduction flow channel;5, pressure spring;6, adjusting plate;601, annular groove;602, air hole;7, ration plate;701, ration hole;8, rotating handle;9, adjusting knob;10, locking sleeve;11, sealing element;12, on-off rotating block;13, rotating hand wheel;14, sealing pad block;15, inflation seat;16, check valve;17, quick charging seat;1701, inclined sliding hole;18, movable connecting piece;1801, stop block;19, stop ball;20, baffle;21, return spring. DETAILED DESCRIPTION

[0023] The following is a specific embodiment of the utility model and in combination with the drawings, the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0024] It should be noted that the utility model about "up", "down", "left", "right", "top", "bottom" and the like direction description is defined based on the position or relationship of the figure shown, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the device must be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0025] According to Figures 1 to 5As shown, a quantitative flow adjustable bottle valve includes an upper valve body 1 and a lower valve body 2, the upper valve body 1 and the lower valve body 2 are fixedly connected by a fixing member, the upper valve body 1 and the lower valve body 2 jointly form a decompression cavity 3, the upper valve body 1 is provided with an air outlet hole 101, the lower valve body 2 is provided with an air inlet hole 201, a surface interface 202, a mounting hole 203, a charging hole 204, a decompression hole 205, a quick charging hole 208 and an inclined connecting hole 206. The inclined connecting hole 206 and the air inlet hole 201 are controlled to be connected or disconnected by an on-off switch arranged in the mounting hole 203, the inclined connecting hole 206 is always connected with the mounting hole 203, the decompression hole 205 and the charging hole 204, the surface interface 202 is always connected with the air inlet hole 201 and is used for mounting a pressure gauge. The decompression cavity 3 is provided with a decompression piston 4 and a pressure spring 5, the lower end of the decompression piston 4 is provided with a plug, the plug can block the decompression hole 205 or open the decompression hole 205. The decompression piston 4 is provided with a decompression flow channel 401, after the decompression flow channel 401 is connected with the decompression hole 205, the decompressed gas enters the decompression cavity 3, and the decompressed gas in the decompression cavity 3 is connected with the air outlet hole 101 through a quantitative hole 701.

[0026] The decompression cavity 3 is further provided with a rotatable adjusting plate 6, the adjusting plate 6 is fixedly connected with a quantitative plate 7, the quantitative plate 7 is provided with a plurality of quantitative holes 701 of different sizes, and the quantitative holes 701 are connected with the air outlet hole 101. The air outlet hole 101 is located at the upper portion of the upper valve body 1, a rotating handle 8 is rotatably arranged in the upper valve body 1 and is fixedly connected with the adjusting plate 6, one end of the rotating handle 8 extends into the decompression cavity 3, one end of the rotating handle 8 extends out of the upper valve body 1 and is fixedly connected with an adjusting knob 9, a locking sleeve 10 is arranged between the adjusting knob 9 and the upper valve body 1, the quantitative plate 7 is located between the adjusting plate 6 and the inner wall of the decompression cavity 3, and a sealing member 11 is arranged between the quantitative plate 7 and the inner wall of the decompression cavity 3. The upper valve body 1 is provided with two annular sealing grooves 102 which are symmetrically arranged relative to the axis of the quantitative plate 7, the sealing member 11 is located in the annular sealing groove 102, and the hole of the air outlet hole 101 is located in one of the annular sealing grooves 102. The adjusting plate 6 is provided with an annular groove 601 connected with the quantitative hole 701 and a gas passing hole 602 directly connected with the annular groove 601, and the gas passing hole 602 and the quantitative hole 701 are located on the upper and lower sides of the annular groove 601. The quantitative plate 7 is provided with 2-12 quantitative holes 701 of different sizes. The quantitative plate 7 is further provided with a plugging part, and the rotating handle 8 can realize 360-degree rotation adjustment of closing and flow size adjustment with the quantitative plate 7. The quantitative plate 7 is uniformly provided with 2-12 quantitative holes 701 of different sizes, the flow is customized according to needs, and the flow is adjusted in the manner of controlling the flow area.

[0027] The air inlet hole 201 is provided with a sealing boss 207 protruding towards the opening and closing switch, the opening and closing switch comprises an opening and closing rotating block 12 and a rotating hand wheel 13, the opening and closing rotating block 12 and the rotating hand wheel 13 are slidably connected through a clamping block and a clamping groove, the opening and closing rotating block 12 is threadedly connected with the mounting hole 203, and a sealing pad 14 is fixed to one end of the opening and closing rotating block 12 close to the sealing boss 207, and the sealing pad 14 abuts against or is away from the sealing boss 207. When the rotating hand wheel 13 is rotated, the rotating block is rotated, and since the rotating block is threadedly connected with the mounting hole 203, the rotating block can be moved leftward and rightward in the mounting hole 203 to block or open the air inlet hole 201.

[0028] The air charging hole 204 is sealingly and fixedly provided with an air charging device, the air charging device comprises an air charging seat 15 and a one-way valve 16 located in the air charging seat 15, and the air charging seat 15 is sealingly and fixedly connected with the air charging hole 204.

[0029] The lower valve body 2 is provided with a quick charging hole 208 communicating with the pressure relief cavity 3, the quick charging hole 208 is always communicated with the pressure relief flow channel 401, and the quick charging hole 208 is fixedly provided with a quick charging connector. The quick charging connector comprises a quick charging seat 17 and a movable connecting piece 18, the quick charging seat 17 is provided with an inclined sliding hole 1701 in the middle portion, the inclined sliding hole 1701 is provided with a stop ball 19, a baffle 20 and a return spring 21, the movable connecting piece 18 is protrudingly provided with a stop block 1801, the stop block 1801 is movably connected to the outer periphery of the quick charging seat 17, and when the movable connecting piece 18 is slid, the stop block 1801 can block the inclined sliding hole 1701.

[0030] The above embodiment is only a preferred embodiment of the utility model, and does not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope defined in the utility model claim.

Claims

1. A bottle valve with adjustable quantitative flow, comprising a fixedly connected upper valve body (1) and lower valve body (2) and a decompression cavity (3) formed by the two, a decompression piston (4) and a pressure spring (5) are arranged in the decompression cavity (3), characterized in that: The upper valve body (1) is provided with an air outlet hole (101), the lower valve body (2) is provided with an air inlet hole (201), the decompression piston (4) is provided with a decompression flow channel (401) communicating the air inlet hole (201) and the air outlet hole (101), and the decompression cavity (3) is further provided with a rotatable adjusting plate (6), the adjusting plate (6) is fixedly connected with a quantitative plate (7), the quantitative plate (7) is provided with a plurality of quantitative holes (701) of different sizes, and the quantitative holes (701) communicate with the air outlet hole (101).

2. A variable flow rate adjustable vial valve according to claim 1, wherein: The air outlet hole (101) is located at the upper portion of the upper valve body (1), a rotating handle (8) is sealingly and rotatably arranged in the upper valve body (1), one end of the rotating handle (8) extends into the decompression cavity (3) and is fixedly connected with the adjusting plate (6), and the other end of the rotating handle (8) extends out of the upper valve body (1) and is fixedly connected with an adjusting knob (9), a locking sleeve (10) is arranged between the adjusting knob (9) and the upper valve body (1), the quantitative plate (7) is located between the adjusting plate (6) and the inner wall of the decompression cavity (3), and a sealing element (11) is arranged between the quantitative plate (7) and the inner wall of the decompression cavity (3).

3. A variable flow rate adjustable vial valve according to claim 2, wherein: The upper valve body (1) is provided with two annular sealing grooves (102) which are symmetrically arranged with respect to the axis of the quantitative plate (7), the sealing element (11) is located in the annular sealing groove (102), and the hole opening of the air outlet hole (101) is located in one of the annular sealing grooves (102).

4. A variable flow metering valve according to claim 3, wherein: The adjusting plate (6) is provided with an annular groove (601) communicating with the quantitative holes (701) and an air passing hole (602) directly passing through the annular groove (601), and the air passing hole (602) and the quantitative holes (701) are located on the upper and lower sides of the annular groove (601).

5. A variable flow metering valve according to claim 1, wherein: The quantitative plate (7) is provided with 2-12 quantitative holes (701) of different sizes.

6. A flow-regulated bottle valve according to any one of claims 1 to 5, characterized in that: The lower valve body (2) is provided with a gauge interface (202) for mounting a pressure gauge, a mounting hole (203), an inflation hole (204), a decompression hole (205) and an inclined connecting hole (206), the inclined connecting hole (206) always communicates with the mounting hole (203), the decompression hole (205) and the inflation hole (204), the gauge interface (202) always communicates with the air inlet hole (201), and the inclined connecting hole (206) and the air inlet hole (201) are controlled to be connected or disconnected by an on-off switch arranged in the mounting hole (203).

7. A variable flow metering valve according to claim 6, wherein: The air inlet hole (201) protrudes a sealing boss (207) towards the on-off switch, the on-off switch comprises an on-off rotating block (12) and a rotating hand wheel (13), the on-off rotating block (12) and the rotating hand wheel (13) are slidably connected through a clamping block and a clamping groove, the on-off rotating block (12) is threadedly connected with the mounting hole (203), and the on-off rotating block (12) is fixedly connected with a sealing pad block (14) at one end close to the sealing boss (207), and the sealing pad block (14) abuts against or is away from the sealing boss (207).

8. A variable flow metering valve according to claim 7, wherein: The inflation hole (204) is sealingly and fixedly provided with an inflation device, the inflation device comprises an inflation seat (15) and a one-way valve (16) arranged in the inflation seat (15), and the inflation seat (15) and the inflation hole (204) are sealingly and fixedly connected.

9. A variable flow metering valve according to claim 1, wherein: The lower valve body (2) is provided with a quick charging hole (208) communicating with the pressure reducing cavity (3), the quick charging hole (208) is always communicated with the pressure reducing flow channel (401), and the quick charging joint is fixedly arranged on the quick charging hole (208).

10. A variable flow metering valve according to claim 9, wherein: The quick charging joint comprises a quick charging seat (17) and a movable connecting piece (18), the middle part of the quick charging seat (17) is provided with an inclined sliding hole (1701), the inclined sliding hole (1701) is provided with a ball stop (19), a baffle (20) and a reset spring (21), the movable connecting piece (18) protrudes inwardly and is provided with a stop block (1801), and the stop block (1801) is movably clamped on the outer periphery of the quick charging seat (17); when the movable connecting piece (18) slides, the stop block (1801) can block the inclined sliding hole (1701).

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