Explosion-proof oxygen bottle

Abstract

The utility model provides an anti-explosion oxygen bottle and belongs to the field of machinery. The explosion-proof oxygen bottle comprises a bottle body, a valve and a protective structure, the top of the bottle body is provided with a connecting part protruding outwards, the bottom of the valve is in threaded connection with the connecting part, the protective structure comprises a protective cover and a sunken part, the top of the bottle body is provided with the annular sunken part which is sunken towards the interior of the bottle body, and the sunken part forms an annular sunken cavity; the protective cover is cylindrical, the lower end of the protective cover is in threaded connection with the interior of the sunken cavity, when the protective cover is in an installation state, the valve is located in the protective cover, the protective cover is provided with at least one operation opening capable of being shielded, the protective cover and the connecting part are separated to form a blocking annular cavity, and the explosion-proof oxygen bottle changes the impulsive force conduction position and has a protection effect on the valve connecting part.

Description

Technical Field

[0001] The utility model belongs to the field of machinery and relates to an explosion-proof oxygen cylinder. Background Art

[0002] Oxygen cylinders are high-pressure containers for storing and transporting oxygen. They are generally made of alloy structural steel by hot stamping and pressing. The outer diameter is 219mm. The commonly used gas cylinder has a capacity of 40 liters and is cylindrical. It is used in hospitals, emergency stations, and sanatoriums. The structure includes a bottle body, a valve, and a protective cover on the top. The structure of the oxygen cylinder is similar to that of the argon cylinder. On June 9, 2022, our company applied for a utility model patent for an argon cylinder based on a head anti-collision structure, including a bottle body, a valve, and a protective cover. The top of the bottle body has a protruding connection part, and the bottom of the valve is screwed to the connection part. The protective cover includes a connecting cover and a surrounding cover. The top and bottom of the connecting cover are open and hollow. The connecting cover is screwed to the connecting part. The bottom of the surrounding cover is open and the valve cover is covered. The bottom of the surrounding cover is screwed to the connecting cover. A hollow connection port is opened on the surrounding cover. The outer wall of the surrounding cover is provided with a plurality of rubber rings, and a protruding anti-collision part extends radially on the rubber ring. The above scheme adopts the design of split protective cover structure, which provides sufficient deformation margin when the outer wall of the enclosure is hit by external force, realizes good buffering effect, and avoids the direct external force acting on the connection part due to the solid structure. Combined with the attached drawings, it can be seen that the upper inner opening of the connection cover is directly in contact with the outer wall of the connection part. When the top of the argon gas cylinder collides, although it is protected by the external enclosure cover, the upper end of the connection cover directly acts on the connection part after being stressed, directly realizing the impact force transmission. The connection part is a valve connection part, which is easy to loosen and cause leakage after being impacted, and there are still hidden dangers in essence.

[0003] In order to solve the above problems, this application is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an explosion-proof oxygen cylinder in view of the above-mentioned problems existing in the prior art. The explosion-proof oxygen cylinder changes the impulse conduction position, has a protective effect on the valve connection part, and solves the problems of unreasonable protective structure of existing gas cylinders and potential safety hazards.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] An explosion-proof oxygen cylinder comprises a bottle body, a valve and a protective structure, wherein the top of the bottle body has a connecting portion protruding outward, and the bottom of the valve is screwed to the connecting portion, and is characterized in that the protective structure comprises a protective cover and a recessed portion, the top of the bottle body has a recessed portion that is recessed into the interior of the bottle body and is annular, and the recessed portion forms an annular recessed cavity, the protective cover is cylindrical and the lower end is screwed into the recessed cavity, when the protective cover is in an installed state, the valve is located in the protective cover, at least one operating port that can be blocked is opened on the protective cover, and the protective cover is separated from the connecting portion to form a blocking ring cavity.

[0007] The valve and connection part in this oxygen cylinder have the same structure as those of traditional oxygen cylinders. In order to reduce review resources, the specific structure and principle will not be described in detail. One of the innovative points of this oxygen cylinder is that it has a recessed part that is recessed into the interior of the bottle body. The recessed part is formed inward, which changes the action position of the protective cover and the bottle body, so that the connection part is only used as a connection part. Its outer wall has no obstruction. When the protective cover collides, the recessed part at its bottom is the impact force transmission area, which has no connection with the connection part, so that the connection part is in an isolated state. The recessed part is formed inward instead of protruding outward, which makes full use of the inherent structure of the top of the bottle body, so that the impact force is first transmitted through the top structure of the bottle body and then to the recessed part, avoiding the situation that the impact force may not be transmitted to the top of the bottle body when the recessed part is outside (the recessed part formed inward can ensure that the top structure of the bottle body can achieve a blocking effect). The design of the operating port can expose the hand wheel and air outlet of the valve, which is convenient for the operator to operate. The shieldable design of the operating port can reduce the contact between the valve and the outside world. Especially when the pressure in the bottle is low, excessive contact with the outside world may cause dust to enter the bottle body. The shieldable design can reduce the entry of dust.

[0008] In the above-mentioned explosion-proof oxygen cylinder, the recessed portion and the bottle body are an integrated structure.

[0009] When processing the bottle body, the sunken part can be processed in one piece.

[0010] In the above-mentioned explosion-proof oxygen cylinder, the lower end of the protective cover has a hollow and hemispherical enclosure, and the enclosure covers the outside of the curved surface at the top of the bottle body.

[0011] In the above-mentioned explosion-proof oxygen cylinder, the outer diameter of the enclosure is larger than the outer diameter of the protective cover.

[0012] The enclosure and the protective cover can be an integrated structure. Since the outer diameter of the bottle body is larger than the outer diameter of the protective cover, the bottle body is more likely to be hit when the gas cylinder rolls over. The design of the enclosure protects the curved area on the top of the bottle body. At the same time, only the enclosure is hit, thereby achieving rollover protection for the bottle body.

[0013] In the above-mentioned explosion-proof oxygen cylinder, an annular gasket is provided between the lower end of the enclosure and the bottle body, and the annular gasket is fixed on the inner wall of the lower end of the enclosure.

[0014] The annular gasket acts as a buffer.

[0015] In the above-mentioned explosion-proof oxygen cylinder, the protection structure includes a cylindrical cover tube, which is sleeved outside the protective cover and can slide up and down to block the operation port.

[0016] The cover tube slides and stops at the same time, so as to realize the exposure and closing of the operation port.

[0017] In the above-mentioned explosion-proof oxygen cylinder, the outer wall of the protective cover has a plurality of magnetic blocks, and the magnetic blocks can adsorb the cover tube.

[0018] The cover tube can be stopped and slid at any time by means of magnetic blocks.

[0019] In the above-mentioned explosion-proof oxygen cylinder, there are two operation ports.

[0020] Two operating ports can increase the tolerance of the protective cover installation position.

[0021] In the above-mentioned explosion-proof oxygen cylinder, the protective cover and the cover tube are both made of stainless steel.

[0022] Compared with the prior art, this explosion-proof oxygen cylinder has the following advantages:

[0023] 1. The explosion-proof oxygen cylinder changes the action position of the protective cover and the bottle body through the inwardly formed recessed part, so that there is no shielding on the outer wall of the connecting part, the impact force has no connection with the connecting part, and the connecting part is in an isolated state.

[0024] 2. The shieldable design of the operating port of this explosion-proof oxygen cylinder can reduce the contact between the valve and the outside world. Especially when the pressure in the bottle is low, excessive contact with the outside world may cause dust to enter the bottle. The shieldable design can reduce the entry of dust.

[0025] 3. The explosion-proof oxygen cylinder is designed with a cover to protect the top arc surface area of ​​the bottle body. At the same time, only the cover is hit to achieve rollover protection of the bottle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural sectional view of the explosion-proof oxygen cylinder.

[0027] Figure 2 yes Figure 1 A magnified view of the structure in area A.

[0028] List of Reference Numerals

[0029] In the figure, 1. bottle body;

[0030] 1a, connecting part;

[0031] 1b, invagination;

[0032] 1c, invaginated cavity;

[0033] 2. Valve;

[0034] 3. Protective cover;

[0035] 3a. Operation port;

[0036] 3b, enclosure;

[0037] 4. Block the ring cavity;

[0038] 5. Ring gasket;

[0039] 6. Cover tube;

[0040] 7. Magnets. DETAILED DESCRIPTION

[0041] like Figure 1 and Figure 2As shown, the explosion-proof oxygen cylinder includes a bottle body 1, a valve 2 and a protective structure. The top of the bottle body 1 has a connecting portion 1a protruding outward, and the bottom of the valve 2 is screwed to the connecting portion 1a. The protective structure includes a protective cover 3 and a recessed portion 1b. The top of the bottle body 1 has a recessed portion 1b that is recessed into the inside of the bottle body 1 and is annular. The recessed portion 1b forms an annular recessed cavity 1c. The protective cover 3 is cylindrical and the lower end is screwed into the recessed cavity 1c. When the protective cover 3 is in the installed state, the valve 2 is located in the protective cover 3. The protective cover 3 is provided with two operating ports 3a that can be blocked. The two operating ports 3a can increase the fault tolerance of the installation position of the protective cover 3. The protective cover 3 is separated from the connecting portion 1a to form a blocking annular cavity 4. The valve 2 and the connecting portion 1a in the oxygen cylinder are the same as those of the traditional oxygen cylinder. In order to reduce the review resources, the specific structure and principle are not described in detail. One of the innovative points of this oxygen cylinder is that it has a recessed portion 1b that is recessed into the bottle body 1. The recessed portion 1b is formed inward, which changes the action position of the protective cover 3 and the bottle body 1, so that the connecting portion 1a is only used as the connecting portion 1a, and its outer wall is not blocked. When the protective cover 3 collides, the recessed portion 1b at the bottom is the impact force transmission area, which has no connection with the connecting portion 1a, so that the connecting portion 1a is in an isolated state. The recessed portion 1b is formed inward instead of protruding outward, which makes full use of the inherent structure of the top of the bottle body 1, so that the impact force is first transmitted through the top structure of the bottle body 1 and then transmitted to the recessed portion 1b, avoiding the situation that the impact force may not be transmitted to the top of the bottle body 1 when the recessed portion 1b is outside (the recessed portion 1b formed inward can ensure that the top structure of the bottle body 1 can achieve a blocking effect). The design of the operating port 3a can expose the hand wheel and the air outlet of the valve 2, which is convenient for the operator to operate. The shieldable design of the operating port 3a can reduce the contact between the valve 2 and the outside world. Especially when the pressure in the bottle body 1 is low, excessive contact with the outside world may cause dust to enter the bottle body 1. The shieldable design can reduce the entry of dust.

[0042] The recessed portion 1b is an integrated structure with the bottle body 1. The recessed portion 1b is processed as a whole when the bottle body 1 is processed. The lower end of the protective cover 3 has a hollow and hemispherical enclosure 3b, which covers the outer arc surface of the top of the bottle body 1. The outer diameter of the enclosure 3b is larger than the outer diameter of the protective cover 3. The enclosure 3b and the protective cover 3 can be an integrated structure. Because the outer diameter of the bottle body 1 is larger than the outer diameter of the protective cover 3, the probability of the bottle body 1 being hit when the gas cylinder rolls over is greater. Through the design of the enclosure 3b, the function is to protect the arc surface area at the top of the bottle body 1. At the same time, only the enclosure 3b is hit, so as to realize the rollover protection of the bottle body 1. There is an annular gasket 5 between the lower end of the enclosure 3b and the bottle body 1, and the annular gasket 5 is fixed on the inner wall of the lower end of the enclosure 3b. The annular gasket 5 plays a buffering role. The protective structure includes a cylindrical cover tube 6, which is sleeved outside the protective cover 3 and can slide up and down to block the operation port 3a. The cover tube 6 slides and stops at the same time, so as to expose and close the operation port 3a. The outer wall of the protective cover 3 has a plurality of magnetic blocks 7, which can absorb the cover tube 6. The cover tube 6 slides and stops at the same time through the magnetic blocks 7. The protective cover 3 and the cover tube 6 are both made of stainless steel.

[0043] The detailed structures, specific component sizes and principles not mentioned in the present application documents are all common knowledge or can be obtained by those skilled in the art through simple selection, and will not be elaborated on.

[0044] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An explosion-proof oxygen cylinder, comprising a bottle body, a valve and a protective structure, wherein the top of the bottle body has a connecting portion protruding outward, and the bottom of the valve is screwed to the connecting portion, characterized in that: The protective structure includes a protective cover and a recessed portion. The top of the bottle body has a ring-shaped recessed portion that is recessed into the interior of the bottle body. The recessed portion forms an annular recessed cavity. The protective cover is cylindrical and the lower end is screwed into the recessed cavity. When the protective cover is in an installed state, the valve is located in the protective cover. At least one operating port that can be blocked is opened on the protective cover, and the protective cover is separated from the connecting portion to form a blocking ring cavity.

2. The explosion-proof oxygen cylinder according to claim 1, characterized in that , the recessed portion and the bottle body are an integrated structure.

3. The explosion-proof oxygen cylinder according to claim 1, characterized in that: The lower end of the protective cover is provided with a hollow hemispherical enclosure, and the enclosure covers the outside of the curved surface at the top of the bottle body.

4. The explosion-proof oxygen cylinder according to claim 3, characterized in that: The outer diameter of the enclosure is greater than the outer diameter of the protective cover.

5. The explosion-proof oxygen cylinder according to claim 3, characterized in that: An annular gasket is provided between the lower end of the enclosure and the bottle body, and the annular gasket is fixed on the inner wall of the lower end of the enclosure.

6. The explosion-proof oxygen cylinder according to claim 1, characterized in that: The protection structure comprises a cylindrical cover tube, which is sleeved outside the protection cover and can slide up and down to block the operation port.

7. The explosion-proof oxygen cylinder according to claim 6, characterized in that: The outer wall of the protective cover is provided with a plurality of magnetic blocks, and the magnetic blocks can adsorb the cover tube.

8. The explosion-proof oxygen cylinder according to claim 1, characterized in that: The number of the operation ports is two.

9. The explosion-proof oxygen cylinder according to claim 6, characterized in that: The protective cover and the cover cylinder are both made of stainless steel.

Images