Inflatable sealing barrel

Abstract

The utility model relates to the technical field of inflatable sealing structures, and provides an inflatable sealing barrel, which comprises a barrel body and a barrel cover, and is characterized in that the barrel cover is provided with a circular boss, the axis of the boss is collinear with the axis of the barrel cover, the boss extends into the barrel body after the barrel cover abuts against the barrel body, the boss is provided with an annular groove, and an inflatable sealing ring is arranged in the annular groove and used for sealing the barrel body. After the inflatable sealing ring is inflated, the inflatable sealing ring abuts against the inner wall of the barrel body. By means of the technical scheme, the problems that in the prior art, a coal sample barrel is low in sealing performance and complex in sealing structure are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of inflatable sealing structures, in particular to an inflatable sealing barrel. Background Art

[0002] Commodities such as coal and ore, which are of uneven quality and priced by quality, need to be sampled, prepared, analyzed, and so on in accordance with relevant standards during trading in order to obtain test results that can represent the overall sample. During the sampling and sample preparation process, coal needs to be stored in containers with good sealing properties to reduce the loss of moisture in the coal samples. Currently, most coal sample barrels for storing coal samples use a mechanical structure such as a lock tongue, which uses a motor or other external drive to achieve the locking and opening of the lock tongue. Not only is the structure complex, but the sealing performance is also low, which makes the moisture of the coal samples easy to lose during storage, affecting the accuracy of the subsequent test of the total moisture content of the coal samples. Utility Model Content

[0003] The utility model provides an inflatable sealed barrel, which solves the problems of low sealing performance and complex sealing structure of coal sample barrels in the related technology.

[0004] The technical solution of the utility model is as follows:

[0005] An inflatable sealed barrel comprises a barrel body and a barrel cover, wherein the barrel cover has a circular boss, the axis of the boss is colinear with the axis of the barrel cover, after the barrel cover abuts against the barrel body, the boss extends into the barrel body, the boss has an annular groove, and further comprises:

[0006] An inflatable sealing ring is arranged in the annular groove. After the inflatable sealing ring is inflated, the inflatable sealing ring abuts against the inner wall of the barrel body.

[0007] Optionally, the barrel body has a card platform, and the card platform is located on the top of the barrel body. After the inflatable sealing ring is inflated, the inflatable sealing ring abuts against the inner wall of the barrel body and the card platform.

[0008] Optionally, it also includes:

[0009] A first air pipe, one end of which is connected to the inflatable sealing ring and the other end of which passes through the center of the barrel cover, and the first air pipe is used to supply air to the inflatable sealing ring;

[0010] The normally closed electromagnetic valve is arranged on the first air pipe. After the normally closed electromagnetic valve is energized, the first air pipe is communicated with the inside of the inflatable sealing ring.

[0011] Optionally, the barrel body (1) further comprises a barrel body (102) and a sealing portion (103), the sealing portion (103) comprising a mounting groove (104), the sealing portion (103) being located at the top of the barrel body (102), the barrel body (102) comprising a accommodating cavity (105) and the inflation channel (101); after the barrel body abuts against the barrel cover, the inflation sealing ring (3) is located in the mounting groove (104), and the inflation sealing ring (3) tightens the mounting groove (104) after being inflated.

[0012] Optionally, the barrel body (1) has an inflation channel (101) inside, and after the inflation channel (101) is inflated, the barrel body (1) forms a barrel shape; the barrel cover also has an air inlet and an annular groove, and the annular groove is located in the annular groove. The top of the inflation sealing ring (3) has a protrusion (301), and after the inflation sealing ring (3) is inflated, the protrusion (301) extends out of the installation groove (104) and seals with the annular groove (201).

[0013] Optionally, the barrel cover (2) further comprises an outer ring (202), the annular groove (201) is located between the outer ring (202) and the boss (203), and after the barrel cover (2) is inflated, a sealing groove (204) is formed between the outer ring (202) and the boss (203), and the sealing groove (204) is used to seal with the sealing portion (103).

[0014] Optionally, the inflatable sealing ring (3) further comprises a first groove (302), wherein the first groove (302) is located in the middle of the inflatable sealing ring (3); and further comprises:

[0015] The first sealing rings (4) are provided in a plurality, and the plurality of first sealing rings (4) are distributed in an array in the first groove (302). After the inflatable sealing ring (3) is inflated, the outer wall of the first sealing ring (4) presses against the inner wall of the middle part of the installation groove (104).

[0016] Optionally, the barrel cover (2) further comprises a second groove (205) arranged on the boss (203); and further comprises:

[0017] The second sealing ring (5) comprises a plurality of second sealing rings (5), which are distributed in an array in the second groove (205). After the barrel cover (2) is inflated, the outer wall of the second sealing ring (5) presses against the inner wall of the middle part of the sealing part (103).

[0018] Optionally, after the inflatable sealing ring (3) is inflated, the cross-section of the raised portion (301) is in the shape of an outwardly convex circular arc.

[0019] Optionally, it also includes:

[0020] A first inflation nozzle (6) is arranged on the barrel cover (2) and is used to introduce air into the barrel cover (2) through the air inlet;

[0021] A second inflation nozzle (8) is arranged on the sealing portion (103), and is used for introducing air into the inflation passage.

[0022] The working principle and beneficial effects of the utility model are:

[0023] In the utility model, the barrel cover is designed with a circular boss, which not only enhances the mechanical engagement between the barrel cover and the barrel body, but also provides a stable installation position for the inflatable sealing ring. The axis of the circular boss on the barrel cover is colinear with the axis of the barrel cover, ensuring that the boss can smoothly extend into the barrel body and fit tightly. The annular groove on the boss is where the inflatable sealing ring is placed. This design allows the sealing ring to remain in a predetermined position even when it is not inflated, making it easy to install and disassemble.

[0024] The inflatable seal is a key component of the design. It is usually made of rubber or synthetic materials with good elasticity and can withstand the inflation pressure without leakage. When the inflatable seal is inflated, it will expand evenly in the annular direction and press tightly against the inner wall of the barrel to form an airtight sealing layer. Compared with the traditional fixed-shape seal, this sealing method can adapt to more variable container shapes and sealing requirements, and the sealing method is simple, which makes it easier to seal and separate the barrel cover and the barrel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0026] Figure 1 This is a schematic cross-sectional view of the first embodiment of the utility model;

[0027] Figure 2 This is a top view of the barrel cover of the first embodiment of the utility model;

[0028] Figure 3 This is a schematic cross-sectional view of the second embodiment of the utility model;

[0029] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at position I in the middle;

[0030] Figure 5 This is a schematic cross-sectional structural diagram of a barrel wall of a second embodiment of the utility model;

[0031] Figure 6It is a schematic cross-sectional view of the barrel cover according to the second embodiment of the utility model.

[0032] In the figure: 1. barrel body; 101. inflation channel; 102. barrel body; 103. sealing part; 104. mounting groove; 105. accommodating chamber; 106. card table; 2. barrel cover; 201. annular groove; 202. outer ring; 203. boss; 204. sealing groove; 205. second groove; 3. inflation sealing ring; 301. raised part; 302. first groove; 4. first sealing ring; 5. second sealing ring; 6. first inflation nozzle; 8. second inflation nozzle; 9. first air pipe; 10. normally closed solenoid valve. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0034] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0035] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0036] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] like Figure 1~Figure 2As shown, it is the first embodiment of the present scheme, which proposes an inflatable sealed barrel, including a barrel body 1 and a barrel cover 2, the barrel cover 2 has a circular boss 203, the axis of the boss 203 is colinear with the axis of the barrel cover 2, after the barrel cover 2 abuts against the barrel body 1, the boss 203 extends into the barrel body 1, the boss 203 has an annular groove, and also includes an inflatable sealing ring 3, which is arranged in the annular groove, and after the inflatable sealing ring 3 is inflated, the inflatable sealing ring 3 abuts against the inner wall of the barrel body 1.

[0038] In this embodiment, the barrel cover 2 is designed with a circular boss 203. Such a structure not only enhances the mechanical engagement between the barrel cover 2 and the barrel body 1, but also provides a stable installation position for the inflatable sealing ring 3. The axis of the circular boss 203 on the barrel cover 2 is colinear with the axis of the barrel cover 2, ensuring that the boss 203 can smoothly extend into the barrel body 1 and fit tightly. The annular groove on the boss 203 is where the inflatable sealing ring 3 is placed. Such a design allows the sealing ring to remain in a predetermined position even when it is not inflated, which is convenient for installation and removal.

[0039] The inflatable sealing ring 3 is a key component of the design. It is usually made of rubber or synthetic materials with good elasticity and can withstand the inflation pressure without leakage. When the inflatable sealing ring 3 is inflated, it will expand evenly in the annular direction and press tightly against the inner wall of the barrel body 1 to form an airtight sealing layer. Compared with the traditional fixed-shape sealing ring, this sealing method can adapt to more variable container shapes and sealing requirements, and the sealing method is simple, which is more convenient for sealing and separating the barrel cover 2 and the barrel body 1.

[0040] Furthermore, the barrel body 1 has a clamping platform 106 , which is located at the top of the barrel body 1 . After the inflatable sealing ring 3 is inflated, the inflatable sealing ring 3 abuts against the inner wall of the barrel body 1 and the clamping platform 106 .

[0041] In this embodiment, the clamping platform 106 is arranged on the top of the barrel body 1. Its design purpose is to provide an additional support point for the sealing ring after the inflatable sealing ring 3 is inflated. When the sealing ring expands and contacts the inner wall of the barrel body 1, the clamping platform 106 serves as an upper limiting structure to ensure that the upper edge of the sealing ring can be tightly attached to the clamping platform 106 to form a closed and stable sealing interface.

[0042] Furthermore, it also includes a first air pipe 9, one end of which is connected to the inflatable sealing ring 3, and the other end passes through the center of the barrel cover 2. The first air pipe 9 is used to supply air to the inflatable sealing ring 3; a normally closed solenoid valve 10 is arranged on the first air pipe 9. After the normally closed solenoid valve 10 is energized, the first air pipe 9 is connected to the inside of the inflatable sealing ring 3.

[0043] In this embodiment, one end of the first air pipe 9 is directly connected to the inflatable sealing ring 3, and the other end passes through the center of the barrel cover 2. This design makes the process of inflating the inflatable sealing ring 3 more direct and convenient. The use of the air pipe ensures that the air can be accurately delivered to the inside of the sealing ring, avoiding direct contact between the external air and the items in the barrel, and maintaining the purity and safety of the contents. The setting of the normally closed solenoid valve 10 is another highlight of the design. The solenoid valve is closed by default when it is not powered on, which means that in the non-inflated state, the sealing ring is isolated from the outside, effectively preventing the natural leakage of air and ensuring the long-term sealing of the container. When it is necessary to inflate, the solenoid valve is powered on and opened by controlling the circuit, which can not only make the first air pipe 9 communicate with the inside of the inflatable sealing ring 3, allowing air to be quickly and accurately filled in, and completing the inflation process of the sealing ring, but also the normally closed sealing ring is only powered on when it is necessary to inflate or deflate, which saves more electricity.

[0044] like Figure 2~Figure 6 As shown, it is the second embodiment of the present scheme, including a barrel body 1 and a barrel cover 2. The barrel cover 2 has a circular boss 203. The axis of the boss 203 is colinear with the axis of the barrel cover 2. After the barrel cover 2 abuts against the barrel body 1, the boss 203 extends into the barrel body 1. The boss 203 has an annular groove and also includes an inflatable sealing ring 3, which is arranged in the annular groove. After the inflatable sealing ring 3 is inflated, the inflatable sealing ring 3 abuts against the inner wall of the barrel body 1.

[0045] Furthermore, it also includes a first air pipe 9, one end of which is connected to the inflatable sealing ring 3, and the other end passes through the center of the barrel cover 2. The first air pipe 9 is used to supply air to the inflatable sealing ring 3; a normally closed solenoid valve 10 is arranged on the first air pipe 9. After the normally closed solenoid valve 10 is energized, the first air pipe 9 is connected to the inside of the inflatable sealing ring 3.

[0046] Furthermore, the barrel body 1 also has a barrel body 102 and a sealing portion 103, the sealing portion 103 has a mounting groove 104, the sealing portion 103 is located at the top of the barrel body 102, and the barrel body 102 has a accommodating cavity 105 and an inflation channel 101; after the barrel body 1 abuts against the barrel cover 2, the inflation sealing ring 3 is located in the mounting groove 104, and the inflation sealing ring 3 tightens the mounting groove 104 after being inflated.

[0047] Furthermore, the barrel body 1 has an inflation channel 101 inside. After the inflation channel 101 is inflated, the barrel body 1 forms a barrel shape; the barrel cover 2 also has an air inlet and an annular groove 201. The annular groove 201 is located in the annular groove. The top of the inflation sealing ring 3 has a protrusion 301. After the inflation sealing ring 3 is inflated, the protrusion 301 extends out of the installation groove 104 and seals with the annular groove 201.

[0048] Furthermore, the barrel cover 2 also has an outer ring 202 , and the annular groove 201 is located between the outer ring 202 and the boss 203 . After the barrel cover 2 is inflated, a sealing groove 204 is formed between the outer ring 202 and the boss 203 , and the sealing groove 204 is used to seal with the sealing part 103 .

[0049] Furthermore, the inflatable sealing ring 3 also has a first groove 302, and the first groove 302 is located in the middle of the inflatable sealing ring 3; it also includes a plurality of first sealing rings 4, and the plurality of first sealing rings 4 are arrayed in the first groove 302. After the inflatable sealing ring 3 is inflated, the outer wall of the first sealing ring 4 presses against the inner wall of the middle of the mounting groove 104.

[0050] Furthermore, the barrel cover 2 also has a second groove 205 arranged on the boss 203; it also includes a second sealing ring 5, which has a plurality of second sealing rings 5 ​​arrayed in the second groove 205. After the barrel cover 2 is inflated, the outer wall of the second sealing ring 5 presses against the inner wall of the middle part of the sealing part 103.

[0051] Furthermore, after the inflatable sealing ring 3 is inflated, the cross section of the raised portion 301 is in the shape of an outwardly convex arc.

[0052] Furthermore, it also includes a first inflation nozzle 6, which is arranged on the barrel cover 2 and is used to introduce air into the barrel cover 2 through the air inlet; a second inflation nozzle 8 is arranged on the sealing portion 103, and the second inflation nozzle 8 is used to introduce air into the inflation passage 101.

[0053] In this embodiment, the core structure of the inflatable sealed barrel is a barrel body 1 with an inflatable channel 101. In the uninflated state, the barrel body 1, the barrel cover 2 and the inflatable sealing ring 3 can be folded for easy transportation and storage. When the operator inflates the inflatable channel 101, the barrel body 1 expands to form a barrel-shaped structure, and the barrel cover 2 forms an end cover that matches the barrel-shaped structure. When the inflated barrel cover 2 is installed on the inflated barrel body 1, the inflated inflatable sealing ring 3 plays a sealing role. The specific use process is as follows: first, the operator inflates the inflatable channel 101 of the barrel body 1, and the barrel body 1 expands to form a barrel-shaped structure after inflation, and the inflatable sealing ring 3 forms a ring structure after inflation. Then the operator inflates the barrel cover 2, and the barrel cover 2 expands to form an end cover that matches the inflated barrel body 1 after inflation. The operator can load the coal mine sample into the inflated inflatable barrel, and then make the barrel cover 2 and the barrel body 1 seal through the inflatable sealing ring 3. Compared with the traditional method of using a locking tongue structure to clamp the barrel cover and seal the barrel, the inflatable sealed barrel has a simple structure and good sealing performance.

[0054] The barrel body 1 is composed of a barrel body 102 and a sealing part 103. The sealing part 103 is arranged above the barrel body 102. The barrel body 102 has a receiving cavity 105 and an air-filling passage 101. The sealing part 103 is provided with a mounting groove 104. The sealing part 103 is communicated with the air-filling passage 101. The air-filling sealing ring 3 is arranged in the mounting groove 104. The air-filling sealing ring 3 is communicated with the sealing part 103. This means that when the operator inflates the air-filling passage 101, the barrel body 102 expands to form a barrel-shaped structure, and the sealing part 103 and the air-filling sealing ring 3 expand at the same time. Compared with the structure of the barrel body 1 and the air-filling sealing ring 3 being separated, the barrel body 102 has good air tightness. When the operator places the coal sample in the receiving cavity 105, the barrel cover 2 is inflated, and then the barrel cover 2 is sealed with the barrel body 1 through the air-filling sealing ring 3, so as to reduce the water loss of the coal sample in the receiving cavity 105 and reduce the oxidation phenomenon of the coal sample after contact with the air.

[0055] In this embodiment, an annular groove 201 is introduced in the design of the barrel cover 2, and a precise docking mode is formed with the raised portion 301 of the inflatable sealing ring 3. When the inflatable sealing ring 3 is inflated, the raised portion 301 on the top thereof will extend from the mounting groove 104 and precisely match the annular groove 201 on the barrel cover 2. The sealing between the barrel cover 2 and the barrel body 1 is strengthened, and it is also ensured that the seal will not fail easily even under extreme conditions. The sealing cooperation between the raised portion 301 and the annular groove 201 is a "double insurance" measure, which not only relies on the expansion pressure of the inflatable sealing ring 3 itself to seal, but also enhances the sealing effect through the nested cooperation of the physical structure, and is suitable for situations where absolute leak-proofness is required or it is used in high-pressure and vibration environments.

[0056] Optionally, the barrel cover 2 further has an outer ring 202 , and the annular groove 201 is located between the outer ring 202 and the boss 203 . After the barrel cover 2 is inflated, a sealing groove 204 is formed between the outer ring 202 and the boss 203 , and the sealing groove 204 is used to seal with the sealing portion 103 .

[0057] In this embodiment, the design of the barrel cover 2 also includes two main structural parts, the outer ring 202 and the boss 203. Such a design provides double sealing protection for the barrel cover 2. The annular groove 201 is located between the outer ring 202 and the boss 203, which not only provides a space for the protrusion 301 of the inflatable sealing ring 3 to be embedded, but also creates conditions for the formation of a sealing groove 204 after the barrel cover is inflated. When the barrel cover 2 is inflated, the gap between the outer ring 202 and the boss 203 is closed due to the gas pressure to form a sealing groove 204. The sealing groove 204 is connected to the annular groove 201, and the sealing groove 204 is precisely matched with the sealing part 103 of the barrel body 102. Through the dual effects of gas pressure and physical structure, a leak-free connection between the barrel cover 2 and the barrel body 1 is ensured, which can meet even the strict sealing environment requirements.

[0058] In this embodiment, a first groove 302 is provided in the middle of the inflatable sealing ring 3, and the space of the first groove 302 can accommodate a plurality of first sealing rings 4. When the inflatable sealing ring 3 is inflated, the plurality of first sealing rings 4 distributed in the first groove 302 in an array expand and press against the inner wall of the middle of the mounting groove 104, forming a more complex sealing structure. When the inflatable sealing ring 3 expands, it not only relies on the expansion pressure of its own rubber material to seal, but also further enhances the tightness of the seal through the mechanical extrusion of the first sealing ring 4. After the inflatable sealing ring 3 expands, the outer wall of the first sealing ring 4 can be tightly attached to and press against the inner wall of the middle of the mounting groove 104. Compared with the sealing of a single plane, this point-to-point or line-to-line contact mode can more effectively block any potential leakage path, especially the sealing effect of small gaps is significantly improved. The presence of the first sealing ring 4 also increases the pressure resistance and structural stability of the inflatable sealing ring 3 when subjected to internal and external pressure changes, prevents deformation or damage caused by long-term use or pressure fluctuations, and prolongs the service life of the inflatable sealing barrel.

[0059] In this embodiment, a second groove 205 is provided on the boss 203 of the barrel cover 2, and the internal space of the second groove 205 can accommodate a plurality of second sealing rings 5. When the barrel cover 2 is inflated, the plurality of second sealing rings 5 ​​expand, and the outer walls of the plurality of second sealing rings 5 ​​respectively press against the inner wall of the middle part of the sealing part 103, thereby enhancing the sealing strength between the barrel cover 2 and the top of the barrel body 1, dispersing the pressure, reducing the burden of a single sealing point, and further improving the reliability and durability of the seal.

[0060] In this embodiment, the cross-section of the raised portion 301 after inflation is in the shape of an outward convex arc, which increases the surface area of ​​the raised portion 301 in contact with the annular groove 201, thereby providing a wider range of sealing contact, and maintaining a good sealing effect even when the pressure changes or is slightly deformed. The arc-shaped design helps to evenly distribute the pressure on the surface of the raised portion 301, reduce stress concentration points, avoid excessive extrusion or wear at specific points, and thus extend the service life of the sealing ring. The convex arc-shaped raised portion 301 can better conform to and form a seal when facing an uneven or tiny foreign body contact surface, improve the tolerance for installation deviation, and ensure the stability of the sealing performance. When the raised portion 301 with a smooth arc structure contacts the annular groove 201 after inflation, the friction resistance is relatively small, which reduces the wear on the sealing ring during the opening and closing process, and is conducive to the sealing effect and maintenance under long-term use.

[0061] In this embodiment, the first inflation nozzle 6 is directly arranged on the barrel cover 2, and is used to introduce air into the barrel cover so that the barrel cover 2 can be inflated and expand to complete the sealing of the top of the barrel body 1. The second inflation nozzle 8 is arranged on the sealing portion 103, and is specifically used to supply air to the inflation channel 101. Through the second inflation nozzle 8, air enters the inflation channel 101, expands it, and forms a sealing fit between the barrel cover 2 and the barrel body 1.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An inflatable sealed barrel, comprising a barrel body (1) and a barrel cover (2), characterized in that: The barrel cover (2) has a circular boss (203), the axis of the boss (203) is colinear with the axis of the barrel cover (2), and after the barrel cover (2) is in contact with the barrel body (1), the boss (203) extends into the barrel body (1), and the boss (203) has an annular groove, and further comprises: An inflatable sealing ring (3) is arranged in the annular groove. After the inflatable sealing ring (3) is inflated, the inflatable sealing ring (3) abuts against the inner wall of the barrel body (1).

2. The inflatable sealed barrel according to claim 1, characterized in that: The barrel body (1) has a clamping platform (106), and the clamping platform (106) is located on the top of the barrel body (1). After the inflatable sealing ring (3) is inflated, the inflatable sealing ring (3) abuts against the inner wall of the barrel body (1) and the clamping platform (106).

3. The inflatable sealed barrel according to claim 1, characterized in that: Also includes: a first air pipe (9), one end of which is connected to the inflatable sealing ring (3) and the other end of which passes through the center of the barrel cover (2), the first air pipe (9) being used to supply air to the inflatable sealing ring (3); A normally closed electromagnetic valve (10) is arranged on the first air pipe (9); when the normally closed electromagnetic valve (10) is energized, the first air pipe (9) is communicated with the interior of the inflatable sealing ring (3).

4. The inflatable sealed barrel according to claim 3, characterized in that: The barrel body (1) further comprises a barrel body (102) and a sealing portion (103), wherein the sealing portion (103) comprises a mounting groove (104), and the sealing portion (103) is located at the top of the barrel body (102), wherein the barrel body (102) comprises a accommodating cavity (105) and an inflation passage (101); after the barrel body (1) is in contact with the barrel cover (2), the inflation sealing ring (3) is located in the mounting groove (104), and after the inflation sealing ring (3) is inflated, the mounting groove (104) is tightened.

5. The inflatable sealed barrel according to claim 4, characterized in that: After the inflation channel (101) is inflated, the barrel body (1) forms a barrel shape; the barrel cover (2) also has an air inlet and an annular groove (201), the annular groove (201) is located in the annular groove, and the top of the inflation seal ring (3) has a protrusion (301), and after the inflation seal ring (3) is inflated, the protrusion (301) extends out of the installation groove (104) and is sealed with the annular groove (201).

6. The inflatable sealed barrel according to claim 5, characterized in that: The barrel cover (2) further comprises an outer ring (202), the annular groove (201) being located between the outer ring (202) and the boss (203), and after the barrel cover (2) is inflated, a sealing groove (204) is formed between the outer ring (202) and the boss (203), and the sealing groove (204) is used for sealingly cooperating with the sealing portion (103).

7. The inflatable sealed barrel according to claim 6, characterized in that: The inflatable sealing ring (3) further comprises a first groove (302), wherein the first groove (302) is located in the middle of the inflatable sealing ring (3); and further comprises: The first sealing rings (4) are provided in a plurality, and the plurality of first sealing rings (4) are distributed in an array in the first groove (302). After the inflatable sealing ring (3) is inflated, the outer wall of the first sealing ring (4) presses against the inner wall of the middle part of the installation groove (104).

8. The inflatable sealed barrel according to claim 7, characterized in that: The barrel cover (2) further comprises a second groove (205) arranged on the boss (203); and further comprises: The second sealing ring (5) comprises a plurality of second sealing rings (5), which are distributed in an array in the second groove (205). After the barrel cover (2) is inflated, the outer wall of the second sealing ring (5) presses against the inner wall of the middle part of the sealing part (103).

9. The inflatable sealed barrel according to claim 8, characterized in that: After the inflatable sealing ring (3) is inflated, the cross section of the raised portion (301) is in the shape of an outwardly convex circular arc.

10. The inflatable sealed barrel according to claim 9, characterized in that: Also includes: A first inflation nozzle (6) is arranged on the barrel cover (2) and is used to introduce air into the barrel cover (2) through the air inlet; A second inflation nozzle (8) is arranged on the sealing portion (103), and the second inflation nozzle (8) is used to introduce air into the inflation channel (101).

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