Oxygen filling and leakage detecting integrated device

Abstract

The utility model belongs to the technical field of oxygen filling, and particularly relates to an oxygen filling and leakage detecting integrated device which is used for filling oxygen into an oxygen bottle and comprises an inflation assembly, a protection assembly and a leakage-proof detecting assembly, the inflation assembly is detachably connected with the oxygen bottle so that oxygen can be filled into the oxygen bottle, and the protection assembly is detachably connected with the leakage-proof detecting assembly. The protection assembly is used for carrying out leakage-proof protection on the joint of the inflation assembly and the oxygen bottle, the leakage-proof detection assembly is used for detecting whether the protection assembly and the oxygen bottle leak air or not, if air leaks, the inflation assembly stops inflation, and otherwise, inflation is continuously carried out till the oxygen bottle is fully filled. According to the utility model, air leakage can be prevented in the process of inflating the oxygen bottle.

Description

Technical Field

[0001] The utility model belongs to the technical field of oxygen filling, and in particular relates to an integrated oxygen filling and leak detection device. Background Art

[0002] In the prior art, when filling an oxygen cylinder with oxygen, an oxygen cylinder filling device is required, for example, an oxygen filling device disclosed in patent publication number CN213118454U includes an oxygen cylinder, a fixing frame, a temperature measuring alarm device, a cooling device, and a control device electrically connected to the temperature measuring alarm device and the cooling device respectively. In the prior art, only pipes are used to directly fill the oxygen cylinder, for example, an oxygen filling device disclosed in patent publication number CN220792796U. The oxygen filling device includes: a mounting frame; a delivery pipe, the delivery pipe is arranged on the mounting frame; a plurality of filling pipes, the plurality of filling pipes are arranged on the delivery pipe; a plurality of standing frames, the plurality of standing frames are fixedly mounted on the mounting frame, and the plurality of standing frames correspond to the plurality of filling pipes respectively, the standing frame is provided with a placing frame, the placing frame is provided with two clamping rings, and the two clamping rings are provided with temperature sensors. The oxygen filling device provided by the utility model has the advantages of being able to monitor the temperature of the oxygen tank filled with oxygen, and at the same time being able to well clamp and fix the oxygen tank, thereby preventing the oxygen tank from tilting and improving the safety during the oxygen filling process.

[0003] In the prior art, the temperature of the oxygen cylinder is only monitored during the oxygen filling process, and it is impossible to detect in real time whether the oxygen cylinder is leaking. For this reason, we propose an integrated oxygen filling leak detection device, which can determine whether there is a leak at the interface when the oxygen cylinder is filled with oxygen, and can also detect whether there is a leak in the oxygen cylinder. Utility Model Content

[0004] The utility model aims to provide an integrated oxygen filling and leak detection device, which can judge whether there is leakage at the interface when the oxygen cylinder is filled with oxygen, and can also detect whether there is leakage in the oxygen cylinder.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An integrated oxygen filling and leak detection device is used to fill oxygen cylinders with oxygen, comprising a filling component, a protective component and a leak detection component. The filling component is detachably connected to the oxygen cylinder to achieve filling of oxygen into the oxygen cylinder. The protective component is used to provide leak-proof protection for the connection between the filling component and the oxygen cylinder. The leak detection component is used to detect whether the protective component and the oxygen cylinder are leaking. If there is a leak, the filling component stops inflating. Otherwise, it continues to inflate until the oxygen cylinder is full.

[0007] Preferably, the oxygen cylinder comprises a bottle body and an air inlet arranged at the upper end of the bottle body, a first retaining ring is provided at the end of the air inlet, a first rubber pad is provided inside the first retaining ring, and an external thread is opened at the end of the air inlet.

[0008] Preferably, the inflation component includes an inflation tube, on which a first mechanical valve and a first solenoid valve are sequentially provided, a convex ring is provided at the end of the inflation tube, a hexagonal tube is movable sleeved on the convex ring at the end of the inflation tube, a thread is provided inside the hexagonal tube, and the hexagonal tube is adapted to be mutually matched with an external thread provided at the end of the air inlet, and a second rubber pad is provided on the side wall of the convex ring.

[0009] Preferably, a first annular groove is provided on the air inlet, a second annular groove is provided on the air filling tube, and rubber rings are sleeved on the second annular groove and the first annular groove.

[0010] Preferably, the protective assembly includes a mounting strip arranged on the side wall of the second annular groove, a rotating shaft is provided on the side wall of the upper end of the mounting strip, a first half-tube and a second half-tube hinged to each other are sleeved on the rotating shaft, both ends of the first half-tube and both ends of the second half-tube are respectively adapted to the first annular groove and the second annular groove, and the lower part of the first half-tube and the lower part of the second half-tube are connected by bolts.

[0011] Preferably, the anti-leakage detection assembly includes a first air pressure sensor arranged at the inflation tube and a second air pressure sensor arranged at the back of the first half tube.

[0012] Preferably, an exhaust pipe is connected to the middle of the inflation pipe, and a second mechanical valve and a second solenoid valve are sequentially provided on the exhaust pipe. The lower end of the exhaust pipe is located between the second annular groove and the first air pressure sensor.

[0013] Preferably, an air pump is provided at the upper end of the air extraction pipe, and an air charging pump is connected to the end of the air extraction pipe.

[0014] The technical effects achieved by the utility model are:

[0015] The utility model discloses an integrated oxygen filling leak detection device, wherein the second air pressure sensor is used to monitor whether there is oxygen leakage between the air inlet and the inflation tube. If there is oxygen leakage, the indication of the second air pressure sensor changes. When the second air pressure sensor shows an indication, the first solenoid valve and the inflation pump are manually closed, and the filling of oxygen into the oxygen cylinder is stopped. If the air pressure indication of the first air pressure sensor does not change during the process of the inflation tube continuously filling the oxygen cylinder, it indicates that there is a leak in the oxygen cylinder. For further confirmation, the first solenoid valve and the inflation pump are first closed, and the filling of oxygen into the oxygen cylinder is stopped. If the air pressure indication of the first air pressure sensor still becomes low, it is confirmed that the oxygen cylinder is leaking. At this time, the second mechanical valve, the second solenoid valve and the air pump are opened to draw the oxygen in the oxygen cylinder back to the oxygen storage device, which can effectively prevent leakage during the oxygen filling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model connected with an oxygen cylinder;

[0017] Figure 2 It is a schematic diagram of the overall structure of the oxygen cylinder in the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model connected with an oxygen cylinder;

[0019] Figure 4 It is a schematic cross-sectional structure diagram of the connection between the inflation component and the air inlet in the utility model;

[0020] Figure 5 It is a schematic diagram of the overall structure of the utility model when the protective component is in the open state.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Oxygen cylinder; 2. Inflating assembly; 3. Protection assembly; 4. Leakage detection assembly; 5. Rubber ring; 6. Exhaust pipe; 7. Exhaust pump; 8. Inflating pump; 101. Bottle body; 102. Air inlet; 103. First retaining ring; 104. First rubber pad; 105. First annular groove; 201. Inflating pipe; 202. First mechanical valve; 203. First solenoid valve; 204. Convex ring; 205. Hexagonal pipe; 206. Second rubber pad; 207. Second annular groove; 301. Mounting strip; 302. Rotating shaft; 303. First half pipe; 304. Second half pipe; 401. First air pressure sensor; 402. Second air pressure sensor; 601. Second mechanical valve; 602. Second solenoid valve. DETAILED DESCRIPTION

[0023] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0024] like Figure 1 As shown, an integrated oxygen filling and leak detection device is used to fill oxygen cylinder 1 with oxygen, including a filling component 2, a protection component 3 and a leak detection component 4. The filling component 2 is detachably connected to the oxygen cylinder 1 to realize filling of oxygen into the oxygen cylinder 1. The protection component 3 is used to perform leak protection on the connection between the filling component 2 and the oxygen cylinder 1. The leak detection component 4 is used to detect whether the protection component 3 and the oxygen cylinder 1 are leaking. If there is a leak, the filling component 2 stops inflating. Otherwise, it continues to inflate until the oxygen cylinder 1 is full.

[0025] In the utility model, by setting the leak detection component 4, it is possible to monitor in real time whether there is leakage at the connection of the air inlet 102 when the oxygen cylinder 1 is filled with oxygen. The utility model can also detect whether there is leakage in the oxygen cylinder body 101, thereby ensuring the safety of oxygen filling.

[0026] Preferably, the oxygen cylinder 1 comprises a bottle body 101 and an air inlet 102 arranged at the upper end of the bottle body 101, a first retaining ring 103 is arranged at the end of the air inlet 102, a first rubber pad 104 is arranged inside the first retaining ring 103, and an external thread is opened at the end of the air inlet 102.

[0027] like Figure 4 As shown, it should be noted that the air inlet 102 is also connected to a master control valve, and whether the air inlet 102 is opened or closed is controlled by the master control valve.

[0028] Preferably, the inflation component 2 includes an inflation tube 201, on which a first mechanical valve 202 and a first solenoid valve 203 are provided in sequence, a convex ring 204 is provided at the end of the inflation tube 201, a hexagonal tube 205 is movably sleeved on the convex ring 204 at the end of the inflation tube 201, a thread is provided inside the hexagonal tube 205, and the hexagonal tube 205 is adapted to be mutually compatible with the external thread provided at the end of the air inlet 102, and a second rubber pad 206 is provided on the side wall of the convex ring 204.

[0029] like Figure 4 As shown, in actual use, when it is necessary to fill the bottle body 101 with oxygen, first put the hexagonal tube 205 on the end of the air inlet 102, and then rotate the hexagonal tube 205 until the convex ring 204 is tightly fitted with the end of the air inlet 102, and at the same time, the end of the hexagonal tube 205 is tightly fitted with the first rubber pad 104, completing the connection between the inflation component 2 and the oxygen cylinder 1.

[0030] like Figure 4As shown, preferably, a first annular groove 105 is provided on the air inlet 102 , a second annular groove 207 is provided on the inflation tube 201 , and a rubber ring 5 is sleeved on the second annular groove 207 and the first annular groove 105 .

[0031] like Figure 4 As shown, preferably, the protective component 3 includes a mounting strip 301 arranged on the side wall of the second annular groove 207, a rotating shaft 302 is provided on the side wall of the upper end of the mounting strip 301, a first half-tube 303 and a second half-tube 304 which are hinged to each other are sleeved on the rotating shaft 302, both ends of the first half-tube 303 and both ends of the second half-tube 304 are respectively adapted to the first annular groove 105 and the second annular groove 207, and the lower part of the first half-tube 303 and the lower part of the second half-tube 304 are connected by bolts.

[0032] like Figure 3 As shown, after the connection between the inflation component 2 and the oxygen cylinder 1 is completed, the hinged first half tube 303 and the second half tube 304 are rotated to form a completed sleeve. At the same time, the ends of the first half tube 303 and the second half tube 304 are tightly fitted with the rubber ring 5, and a sealing strip that squeezes each other is provided between the lower part of the first half tube 303 and the contact side wall of the second half tube 304 to ensure the sealing of the connection between the first half tube 303 and the second half tube 304 and the first annular groove 105 and the second annular groove 207. Then, the main control valve of the oxygen cylinder body 101 is opened, and then the first mechanical valve 202 and the first solenoid valve 203 are opened to realize the inflation into the cylinder body 101, thereby completing the inflation of the oxygen cylinder 1.

[0033] Preferably, the anti-leakage detection component 4 includes a first air pressure sensor 401 arranged at the inflation tube 201 and a second air pressure sensor 402 arranged at the back of the first half tube 303; the middle of the inflation tube 201 is connected to an air extraction tube 6, on which a second mechanical valve 601 and a second solenoid valve 602 are arranged in sequence, and the lower end of the air extraction tube 6 is located between the second annular groove 207 and the first air pressure sensor 401; the upper end of the air extraction tube 6 is provided with an air extraction pump 7, and the end of the air extraction tube 6 is connected to an inflation pump 8.

[0034] like Figure 1As shown, the second air pressure sensor 402 is used to monitor whether there is oxygen leakage between the air inlet 102 and the inflation tube 201. If oxygen leakage occurs, the reading of the second air pressure sensor 402 changes. When the second air pressure sensor 402 shows a reading, the first solenoid valve 203 and the inflation pump 8 are manually closed, and the filling of oxygen into the oxygen cylinder 1 is stopped. If the air pressure reading of the first air pressure sensor 401 does not change during the process of the inflation tube 201 continuously filling the oxygen cylinder 1, it means that the oxygen cylinder 1 is leaking. For further confirmation, the first solenoid valve 203 and the inflation pump 8 are first closed, and the filling of oxygen into the oxygen cylinder 1 is stopped. If the air pressure reading of the first air pressure sensor 401 still becomes low, it is confirmed that the oxygen cylinder 1 is leaking. At this time, the second mechanical valve 601, the second solenoid valve 602 and the air pump 7 are opened to draw the oxygen in the oxygen cylinder 1 back to the oxygen storage device. Specifically, the first air pressure sensor 401 is used to monitor the air pressure inside the oxygen cylinder 1 during the inflation process.

[0035] It should be added that the circuit and configuration between the first air pressure sensor 401 and the second air pressure sensor 402 are common knowledge to those skilled in the art.

[0036] like Figure 1-5As shown, the working principle of the utility model is as follows: first, when it is necessary to fill the bottle body 101 with oxygen, the hexagonal tube 205 is firstly put on the end of the air inlet 102, and then the hexagonal tube 205 is rotated until the convex ring 204 is tightly fitted with the end of the air inlet 102, and at the same time, the end of the hexagonal tube 205 is tightly fitted with the first rubber pad 104, and the connection between the inflatable component 2 and the oxygen cylinder 1 is completed. After the connection between the inflatable component 2 and the oxygen cylinder 1 is completed, the hinged first half tube 303 and the second half tube 303 are rotated. 04, so that a complete sleeve is formed, at the same time, the ends of the first half tube 303 and the second half tube 304 are tightly fitted with the rubber ring 5, and a sealing strip that squeezes each other is provided between the lower part of the first half tube 303 and the contact side wall of the second half tube 304 to ensure the sealing between the first half tube 303 and the second half tube 304 and the first annular groove 105 and the second annular groove 207, and then open the main control valve of the oxygen cylinder body 101, and then open the first mechanical valve 202 and the first solenoid valve 20 3. Inflate the bottle 101 to complete the filling of the oxygen cylinder 1. During the filling process, the second air pressure sensor 402 is used to monitor whether there is oxygen leakage between the air inlet 102 and the filling tube 201. If there is oxygen leakage, the reading of the second air pressure sensor 402 changes. When the reading of the second air pressure sensor 402 changes, the first solenoid valve 203 and the filling pump 8 are manually closed, and the filling of oxygen into the oxygen cylinder 1 is stopped. At the same time, the main control valve of the air inlet 102 is closed. If the filling tube 201 During the process of continuously filling the oxygen cylinder 1 with gas, if the air pressure reading of the first air pressure sensor 401 does not change, it means that the oxygen cylinder 1 is leaking. For further confirmation, first close the first solenoid valve 203 and the air pump 8, and stop filling the oxygen cylinder 1 with oxygen. If the air pressure reading of the first air pressure sensor 401 begins to decrease, it confirms that the oxygen cylinder 1 is leaking. At this time, open the second mechanical valve 601, the second solenoid valve 602 and the air pump 7 to pump the oxygen in the oxygen cylinder 1 back to the oxygen storage device.

[0037] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An integrated oxygen filling and leak detection device for filling an oxygen cylinder (1) with oxygen, characterized in that: The invention comprises an inflating component (2), a protective component (3) and an anti-leakage detection component (4); the inflating component (2) is detachably connected to the oxygen cylinder (1) to realize the filling of oxygen into the oxygen cylinder (1); the protective component (3) is used to provide anti-leakage protection for the connection between the inflating component (2) and the oxygen cylinder (1); the anti-leakage detection component (4) is used to detect whether the protective component (3) and the oxygen cylinder (1) are leaking; if there is a leak, the inflating component (2) stops inflating; otherwise, the inflating continues until the oxygen cylinder (1) is full.

2. The integrated oxygen filling leak detection device according to claim 1, characterized in that: The oxygen cylinder (1) comprises a bottle body (101), and an air inlet (102) arranged at the upper end of the bottle body (101), a first retaining ring (103) being provided at the end of the air inlet (102), a first rubber pad (104) being provided inside the first retaining ring (103), and an external thread being provided at the end of the air inlet (102).

3. The integrated oxygen filling and leak detection device according to claim 2, characterized in that: The inflation component (2) comprises an inflation tube (201), on which a first mechanical valve (202) and a first solenoid valve (203) are arranged in sequence, a convex ring (204) is arranged at the end of the inflation tube (201), a hexagonal tube (205) is movably sleeved on the convex ring (204) at the end of the inflation tube (201), a thread is provided inside the hexagonal tube (205), and the thread is adapted to be mutually compatible with the external thread provided at the end of the air inlet (102), and a second rubber pad (206) is provided on the side wall of the convex ring (204).

4. The integrated oxygen filling and leak detection device according to claim 3, characterized in that: The air inlet (102) is provided with a first annular groove (105), the inflation tube (201) is provided with a second annular groove (207), and the second annular groove (207) and the first annular groove (105) are sleeved with a rubber ring (5).

5. The integrated oxygen filling leak detection device according to claim 4, characterized in that: The protection component (3) comprises a mounting bar (301) arranged on the side wall of the second annular groove (207); a rotating shaft (302) is provided on the side wall of the upper end of the mounting bar (301); a first half-tube (303) and a second half-tube (304) are sleeved on the rotating shaft (302) and are hinged to each other; both ends of the first half-tube (303) and both ends of the second half-tube (304) are respectively adapted to the first annular groove (105) and the second annular groove (207); and the lower part of the first half-tube (303) and the lower part of the second half-tube (304) are connected by bolts.

6. The integrated oxygen filling and leak detection device according to claim 5, characterized in that: The anti-leakage detection component (4) comprises a first air pressure sensor (401) arranged at the inflation tube (201) and a second air pressure sensor (402) arranged at the back of the first half tube (303).

7. An integrated oxygen filling leak detection device according to claim 6, characterized in that: The middle of the inflation tube (201) is connected to an exhaust tube (6), on which a second mechanical valve (601) and a second solenoid valve (602) are provided in sequence, and the lower end of the exhaust tube (6) is located between the second annular groove (207) and the first air pressure sensor (401).

8. An integrated oxygen filling and leak detection device according to claim 7, characterized in that: An air pump (7) is provided at the upper end of the air extraction pipe (6), and an air charging pump (8) is connected to the end of the air extraction pipe (6).

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