Oxygen bottle switching device

Abstract

The oxygen bottle switching device comprises a humidifying bottle, a connecting cylinder and a gas source closing mechanism, a flow meter is arranged at the top end of the connecting cylinder, a mounting pipe, an insertion pipe and a control pipe are fixedly connected to the side wall of the connecting cylinder, a gas conveying pipe is movably connected to an opening of the insertion pipe in an inserted mode, and a cylindrical rotary knob is rotationally arranged on the control pipe. The air source closing mechanism comprises an exhaust pipe communicated with the connecting cylinder, the exhaust pipe is communicated with a power cylinder of a cylindrical hollow structure, a driving wheel is rotatably arranged on the side wall of the side, away from the exhaust pipe, of the power cylinder, a sliding plug is slidably arranged in the power cylinder, one side of the sliding plug is fixedly connected with a lead screw, and the lead screw is fixedly connected with the connecting cylinder. One end of the lead screw penetrates through the side wall of the power cylinder to be in threaded connection with the middle of the driving wheel, a first limiting groove and a second limiting groove are formed in the middle of the driving wheel and the middle of the cylindrical knob respectively, and a synchronous belt is connected between the first limiting groove and the second limiting groove. The connecting cylinder can be prevented from being damaged when the pressure in the connecting cylinder is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to oxygen cylinder technical field, especially an oxygen cylinder switch device. BACKGROUND

[0002] In the industrial environment such as chemical plant, air quality can be affected by chemical substances, containing toxic or harmful gas, so employees can be potentially threatened, so the chemical plant is equipped with oxygen cylinder as the tool of first aid, if the staff inhale toxic gas can timely through oxygen cylinder for staff to send clean oxygen, avoid the health problem caused by hypoxia.

[0003] But the existing oxygen cylinder still has certain deficiency in the oxygen supply process, in the oxygen supply process, the gas delivery pipe can be bent, blocked because of the patient's own or external compression problem, the connection transport to oxygen can not be transported to the patient's body, the prior art does not set up alarm device, and others can not find in time, and the oxygen delivered can not be discharged, which can increase the pressure in the connecting cylinder, and long-term accumulation can cause the rupture or damage of the connecting cylinder, therefore, we propose an oxygen cylinder switch device. SUMMARY

[0004] The utility model wants to solve the problem in prior art that the oxygen cylinder cannot solve the problem of damage of the connecting cylinder when the pressure in the connecting cylinder increases and cannot alarm in time.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: an oxygen cylinder switch device, which comprises a humidification bottle, a connecting cylinder and a gas source closing mechanism, the top end of the connecting cylinder is provided with a flowmeter, the side wall of the connecting cylinder is fixedly connected with a mounting pipe, a plug pipe and a control pipe, the plug pipe opening is movably connected with a gas delivery pipe, the control pipe is rotationally provided with a cylindrical knob, the cylindrical knob is connected with a butterfly valve arranged in the connecting cylinder, the gas source closing mechanism comprises an exhaust pipe communicated with the connecting cylinder, one end of the exhaust pipe is communicated with a power cylinder of cylindrical hollow structure, a driving wheel is rotationally arranged on the side wall of the side of the power cylinder away from the exhaust pipe, a sliding plug is slidably arranged in the power cylinder, one side of the sliding plug is fixedly connected with a lead screw, one end of the lead screw passes through the side wall of the power cylinder and is screw-connected with the middle part of the driving wheel, the middle parts of the driving wheel and the cylindrical knob are respectively provided with a first limiting groove and a second limiting groove, and the first limiting groove and the second limiting groove are connected with a synchronous belt.

[0006] As a preferred scheme of the utility model, a pressure valve is arranged on the exhaust pipe.

[0007] As a preferred scheme of the utility model, a spring is fixed on the side wall of the sliding plug and sleeved on the outer wall of the lead screw.

[0008] As a preferred scheme of the oxygen cylinder switch device, the first annular magnet sleeved on the outer wall of the screw rod is fixed on the side wall of the sliding plug, the second annular magnet sleeved on the outer wall of the screw rod is arranged on the inner wall of the side of the power cylinder close to the driving wheel, and the first annular magnet and the second annular magnet are attracted to each other.

[0009] As a preferred scheme of the oxygen cylinder switch device, the first annular magnet sleeved on the outer wall of the screw rod is fixed on the side wall of the sliding plug, the second annular magnet sleeved on the outer wall of the screw rod is arranged on the inner wall of the side of the power cylinder close to the driving wheel, and the first annular magnet and the second annular magnet are attracted to each other.

[0010] The utility model discloses beneficial effects that: the utility model discloses through utilizing the pressure in the connecting cylinder to make pressure valve open, and utilizing the oxygen gas of accumulation pressure to drive sliding plug to slide to push out the screw rod, the rotation of driving wheel and cylindrical knob is driven through the screw rod, and then the oxygen supply in the connecting cylinder is closed, thereby can make oxygen not always leak out, reduce the waste of oxygen resource, also guarantee the use safety of connecting cylinder, make it not cause the explosion of connecting cylinder because of the gas always accumulation in its inside. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled person in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to these drawings. Wherein:

[0012] Figure 1 It is a direct view of the oxygen cylinder switch device.

[0013] Figure 2 It is another view of the oxygen cylinder switch device.

[0014] Figure 3 It is a sectional view of the power cylinder in the oxygen cylinder switch device.

[0015] Figure 4 It is Figure 1 The enlarged view of A in the figure.

[0016] Figure 5 It is Figure 3 The enlarged view of B in the figure.

[0017] Figure 6 It is Figure 4 The enlarged view of C in the figure.

[0018] Figure 7It is a schematic view of the connecting structure of the sliding plug and the screw rod in an oxygen cylinder switch device. DETAILED DESCRIPTION

[0019] The utility model will be specifically introduced below in combination with the drawings and examples.

[0020] Reference Figures 1-7 , this embodiment is an oxygen cylinder switch device, including humidification bottle 1, connecting cylinder 2 and gas source closing mechanism 3, connecting cylinder 2 top is provided with flowmeter 201, connecting cylinder 2 lateral wall is fixedly connected with installation pipe 202, cannula 203 and control pipe 204, and the opening of cannula 203 is movably inserted with gas delivery pipe 203a, and the control pipe 204 is rotationally provided with cylindrical knob 204a, and the cylindrical knob 204a is connected with the butterfly valve arranged in the inside of connecting cylinder 2, and the gas source closing mechanism 3 includes the exhaust pipe 301 in communication with connecting cylinder 2, one end of exhaust pipe 301 is in communication with the power cylinder 302 of cylindrical hollow structure, the power cylinder 302 is rotationally provided with driving wheel 303 on the side wall of the side away from exhaust pipe 301, the sliding plug 304 is slidably arranged in the inside of power cylinder 302, the sliding plug 304 is fixedly connected with the screw rod 305 on one side, and one end of screw rod 305 is in threaded connection with the middle part of driving wheel 303 through the lateral wall of power cylinder 302, and the middle parts of driving wheel 303 and cylindrical knob 204a are respectively provided with first limiting slot 303a and second limiting slot 204b, and the first limiting slot 303a and the second limiting slot 204b are connected with synchronous belt 306.

[0021] Before use, install the humidification bottle 1 filled with distilled water on connecting cylinder 2, insert installation pipe 202 on the oxygen outlet pipe, after installation, insert the gas delivery pipe 3 connected on cannula 203 into the nasal cavity of the user, in the normal use process, oxygen is directly delivered into the nasal cavity of the user through connecting cylinder 2 and gas delivery pipe 3, when the user himself or the external pressure causes the problems such as blockage, bending and oppression of gas delivery pipe 203a, oxygen cannot be delivered into the nasal cavity of the user according to normal, the oxygen output is constant, at this time, the oxygen discharge is reduced, thereby the gas pressure in connecting cylinder 2 can gradually increase, along with the gradual increase of the gas pressure in connecting cylinder 2, the high-pressure gas in connecting cylinder 2 pushes screw rod 305 to move out of power cylinder 302 through exhaust pipe 301, screw rod 305 drives driving wheel 303 to rotate when moving, driving wheel 303 drives cylindrical knob 204a to rotate through synchronous belt 306, thereby controlling the butterfly valve in connecting cylinder 2 to close the gas source channel, ensuring the use safety of connecting cylinder 2, so that the explosion of connecting cylinder 2 caused by the continuous accumulation of gas in its inside is avoided.

[0022] In the embodiment, pressure valve 301a is arranged on exhaust pipe 301.

[0023] With the gradual increase of the air pressure in the connecting cylinder 2, when the air pressure in the connecting cylinder 2 reaches the set threshold, the pressure valve 301a will be opened instantaneously at this time, and the gas in the connecting cylinder 2 will be discharged into the exhaust pipe 301 and the inside of the power cylinder 302.

[0024] In this embodiment, the side wall of the sliding plug 304 is fixed with the spring 307 sleeved on the outer wall of the lead screw 305.

[0025] The sliding plug 304 will quickly reset under the action of the external thrust and the pulling force of the spring 307, and through the reset of the lead screw 305, the cylindrical knob 204a can be reversely rotated, so that the oxygen source can be opened, and the oxygen can flow out again.

[0026] In this embodiment, the side wall of the sliding plug 304 is fixed with the first annular magnet 308 sleeved on the outer wall of the lead screw 305, and the inner wall of the side of the power cylinder 302 close to the driving wheel 303 is provided with the second annular magnet 308a sleeved on the outer wall of the lead screw 305, and the first annular magnet 308 and the second annular magnet 308a are attracted to each other.

[0027] The sliding plug 304 continuously moves in the power cylinder 302 under the pushing of the high-pressure gas until the first annular magnet 308 and the second annular magnet 308a are attracted to each other, at which time the oxygen supply is closed, and the staff troubleshoots. When the staff troubleshoots, the sliding plug 304 will not reset because the first annular magnet 308 and the second annular magnet 308a are in the state of being attracted to each other, thereby ensuring the stability of the closed gas supply.

[0028] In this embodiment, the power cylinder 302 is provided with the air whistle 309 on the outer wall of the side close to the exhaust pipe 301, the air whistle 309 is in communication with the inside of the power cylinder 302, and the sliding plug 304 is provided with a plurality of limiting columns 304a on the side wall close to the exhaust pipe 301 in the circumferential direction, and the length of the plurality of limiting columns 304a is greater than the distance from the air whistle 309 to the end of the power cylinder 302 close to the exhaust pipe 301.

[0029] During the process of gas ejection, part of the ejected gas will also flow through the air whistle 309, and the gas passing through the air whistle 309 will make the air whistle 309 sound, thereby warning others, so that the user or the guardian can timely adjust the pressed part.

[0030] Working principle: before use, install the humidification bottle 1 filled with distilled water on the connecting cylinder 2, insert the installation pipe 202 into the oxygen outlet pipe, after installation, insert the gas delivery pipe 3 connected to the insertion pipe 203 into the user's nasal cavity, in the normal use process, oxygen will be directly delivered to the user's nasal cavity through the connecting cylinder 2 and the gas delivery pipe 3, when the user himself or the outside pressure causes the insertion pipe 203a to be blocked, bent, pressed and other problems, oxygen cannot be delivered to the user's nasal cavity according to the normal delivery, the oxygen output is constant, at this time, the oxygen discharge is reduced, so that the gas pressure in the connecting cylinder 2 will gradually increase, with the gradual increase of the gas pressure in the connecting cylinder 2, when the gas pressure in the connecting cylinder 2 reaches the set threshold value, the pressure valve 301a will be opened at this time, the gas in the connecting cylinder 2 will be discharged into the exhaust pipe 301 and the power cylinder 302 at this time, in the process of gas injection, part of the injected gas will also flow through the air whistle 309, the gas passing through the air whistle 309 will make the air whistle 309 sound, so as to warn others, so as to enable the user or the caregiver to adjust the compressed part in time, if the compressed part is not adjusted in time, the gas in the power cylinder 302 pushes the sliding plug 304 to move out of the power cylinder 302, when the lead screw 305 moves, the driving wheel 303 rotates, the driving wheel 303 drives the cylindrical knob 204a to rotate through the synchronous belt 306, thereby controlling the butterfly valve in the connecting cylinder 2 to close the gas source channel, ensuring the safety of the connecting cylinder 2, so that the connecting cylinder 2 will not explode due to the accumulation of gas in its interior, at this time, the first annular magnet 308 and the second annular magnet 308a are in the state of attraction, waiting for the user or the caregiver to troubleshoot, because the first annular magnet 308 and the second annular magnet 308a are in the state of attraction, so the sliding plug 304 will not reset due to the elastic force of the spring 307, thereby ensuring the stability of the gas supply closing, after the fault is handled, manually push the lead screw 305 to move into the power cylinder 302, the sliding plug 304 will quickly reset under the action of external thrust and the pulling force of the spring 307, through the reset of the lead screw 305, so as to make the cylindrical knob 204a rotate in the opposite direction, thereby opening the gas source, so that oxygen flows out again.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalent, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An oxygen cylinder switching device, characterized in that: The device includes a humidification bottle (1), a connecting cylinder (2), and a gas source shut-off mechanism (3). A flow meter (201) is installed at the top of the connecting cylinder (2). An installation pipe (202), an insertion pipe (203), and a control pipe (204) are fixedly connected to the side wall of the connecting cylinder (2). A gas supply pipe (203a) is movably inserted into the opening of the insertion pipe (203). A cylindrical knob (204a) is rotatably installed on the control pipe (204). The cylindrical knob (204a) is connected to a butterfly valve located inside the connecting cylinder (2). The gas source shut-off mechanism (3) includes an exhaust pipe (301) communicating with the connecting cylinder (2). One end of the exhaust pipe (301) is connected to the movable cylindrical hollow structure. The power cylinder (302) is connected to the exhaust pipe (301). A drive wheel (303) is rotatably mounted on the side wall of the power cylinder (302) away from the exhaust pipe (301). A slide plug (304) is slidably mounted inside the power cylinder (302). A lead screw (305) is fixedly connected to one side of the slide plug (304). One end of the lead screw (305) passes through the side wall of the power cylinder (302) and is threadedly connected to the middle of the drive wheel (303). The drive wheel (303) and the cylindrical knob (204a) are respectively provided with a first limiting groove (303a) and a second limiting groove (204b). A synchronous belt (306) is connected between the first limiting groove (303a) and the second limiting groove (204b).

2. The oxygen cylinder switching device as described in claim 1, characterized in that: A pressure valve (301a) is provided on the exhaust pipe (301).

3. The oxygen cylinder switching device as described in claim 1, characterized in that: The side wall of the slider (304) is fixed with a spring (307) sleeved on the outer wall of the lead screw (305).

4. The oxygen cylinder switching device as described in claim 1, characterized in that: The side wall of the slide plug (304) is fixed with a first annular magnet (308) sleeved on the outer wall of the lead screw (305), and the inner wall of the power cylinder (302) near the drive wheel (303) is provided with a second annular magnet (308a) sleeved on the outer wall of the lead screw (305). The first annular magnet (308) and the second annular magnet (308a) attract each other.

5. The oxygen cylinder switching device as described in claim 1, characterized in that: A whistle (309) is provided on the outer wall of the power cylinder (302) near the exhaust pipe (301). The whistle (309) is connected to the inside of the power cylinder (302). A plurality of limiting posts (304a) are provided circumferentially on the side wall of the slide plug (304) near the exhaust pipe (301). The length of the plurality of limiting posts (304a) is greater than the distance from the whistle (309) to the end of the power cylinder (302) near the exhaust pipe (301).

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