CN117895155A - Alkaline battery with protection seal structure - Google Patents

Abstract

The present application relates to an alkaline battery with a protective sealing structure, belonging to the technical field of batteries, which includes an inner shell assembly, the inner shell assembly includes an inner shell filled with electrolyte, one end of the inner shell is fixed with a positive top plate, the other end of the inner shell is fixed with a negative bottom plate, and also includes an outer shell assembly installed on the outside of the inner shell assembly, the outer shell assembly includes a first outer shell body and a second outer shell body, the first outer shell body and the second outer shell body are plugged and fixed to each other, and a sealing assembly is also provided between the inner shell assembly and the outer shell assembly, the sealing assembly includes a first sealing gasket fixed to the positive top plate and a second sealing gasket fixed to the negative bottom plate, when the first outer shell body and the second outer shell body are plugged into each other, the first outer shell body is pressed against the first sealing gasket, and the second outer shell body is pressed against the second sealing gasket. The present application has the effect of improving the sealing of the battery and reducing the leakage of the electrolyte in the battery.

Description

Alkaline battery with protective sealing structure

Technical Field

The present application relates to the technical field of batteries, and in particular to an alkaline battery with a protective sealing structure.

Background technique

Alkaline batteries, also known as alkaline dry batteries, alkaline zinc-manganese batteries, and alkaline manganese batteries, are the best performing varieties in the zinc-manganese battery series. Alkaline batteries refer to cups, troughs or other containers or part of the space in a composite container that contains electrolyte solutions and metal electrodes to generate electric current, and are devices that can convert chemical energy into electrical energy.

At present, relevant alkaline batteries, such as the authorization announcement number, are alkaline batteries, which disclose an alkaline zinc-manganese battery with an anti-leakage structure, including a galvanized steel shell (1), an electrolyte isolation tube (2), a positive electrode ring (3), a brass collector (4), a plastic sealing ring (5), and a negative electrode battery cap (6).

In the related art, when a battery is hit by an external force or falls, the battery shell may be deformed, resulting in a decrease in the sealing of the battery shell, causing the electrolyte in the battery to leak and pollute the environment.

Summary of the invention

In order to improve the sealing performance of the battery and reduce the problem of electrolyte leakage in the battery, the present application provides an alkaline battery with a protective sealing structure.

The present application provides an alkaline battery with a protective sealing structure using the following technical solution:

An alkaline battery with a protective sealing structure comprises an inner shell assembly, the inner shell assembly comprises an inner shell filled with electrolyte, a positive electrode top plate is fixed to one end of the inner shell, a negative electrode bottom plate is fixed to the other end of the inner shell, and an outer shell assembly is installed on the outside of the inner shell assembly, the outer shell assembly comprises a first outer shell body and a second outer shell body, the first outer shell body and the second outer shell body are plugged and fixed to each other, a sealing assembly is also provided between the inner shell assembly and the outer shell assembly, the sealing assembly comprises a first sealing gasket fixed to the positive electrode top plate and a second sealing gasket fixed to the negative electrode bottom plate, when the first outer shell body and the second outer shell body are plugged into each other, the first outer shell body is tightly pressed against the first sealing gasket, and the second outer shell body is tightly pressed against the second sealing gasket.

By adopting the above technical solution, the first outer shell and the second outer shell are plugged into and installed on the outside of the inner shell, which plays a protective role and reduces the leakage caused by direct impact of external force on the inner shell component. The sealing component enhances the sealing between the inner shell and the first outer shell and the second outer shell, reducing the environmental pollution caused by electrolyte leakage.

Optionally, the sealing assembly includes a plurality of annular inflatable sealing rings installed on the circumferential side of the inner shell, the plurality of inflatable sealing rings are spaced apart along the length direction of the inner shell, and the side of the inflatable sealing ring away from the inner shell abuts against the first outer shell and the second outer shell.

By adopting the above technical solution, multiple inflatable sealing rings are arranged between the inner shell and the first outer shell and the second outer shell, which can not only buffer the external impact force, but also enhance the sealing and reduce the leakage of the electrolyte.

Optionally, an elastic pad is fixed to the circumferential side of the inner shell, and the side of the inflatable sealing ring close to the inner shell is in contact with the elastic pad.

By adopting the above technical solution, the elastic pad helps to increase the contact area between the inflatable sealing ring and the inner shell, and the elastic pad can also buffer the external impact force, thereby reducing the leakage of electrolyte in the inner shell caused by external force impacting the inner shell.

Optionally, the elastic pad has an arc-shaped groove on one side close to the inflatable sealing ring, and the side wall of the inflatable sealing ring fits in the groove.

By adopting the above technical solution, the groove fits with the side wall of the inflatable sealing ring, so that the inflatable sealing ring can better play a buffering role and is not easily displaced when impacted by external force.

Optionally, connecting pipes are connected between the multiple inflation sealing rings, and an air intake pipe is also connected to the inflation sealing ring close to the negative electrode bottom plate. A sealing cover is threadedly connected to the air intake pipe, and a receiving groove for accommodating the air intake pipe and the sealing cover is provided on the second sealing gasket.

By adopting the above technical solution, the inflatable sealing ring is in an uninflated state during installation, thereby facilitating the subsequent installation of the first outer shell and the second outer shell. After the first outer shell and the second outer shell are installed, the air inlet pipe is opened to inflate the inflatable sealing ring. After the inflation is completed, the air inlet pipe is blocked by the sealing cover to ensure that the inflatable sealing ring plays a buffering and sealing role.

Optionally, a plurality of support components for reducing excessive squeezing of the inflatable sealing ring are installed in each of the inflatable sealing rings, and the plurality of support components are evenly spaced in the inflatable sealing ring.

By adopting the above technical solution, multiple support components are arranged in the inflatable sealing ring, ensuring that when the inflatable sealing ring is squeezed in multiple directions, the support components can all play a good supporting effect.

Optionally, the support assembly includes an insertion rod and an insertion tube, one end of the insertion tube is fixed to a side of the inflatable sealing ring close to the elastic pad, one end of the insertion rod is fixed to a side of the inflatable sealing ring close to the first outer shell or the second outer shell, and the other end of the insertion rod extends into the insertion tube and is slidably connected to the insertion tube.

By adopting the above technical solution, the insertion rod and the insertion tube are slidably connected in the inflatable sealing ring. When the inflatable sealing ring is impacted by external force, the inflatable sealing ring is squeezed to play a buffering role. When the inflatable sealing ring is squeezed, the insertion rod retracts into the insertion tube to support the inflatable sealing ring, thereby reducing the possibility of the inflatable sealing ring being ruptured due to excessive squeezing.

Optionally, a plug-in assembly is provided between the first outer shell and the second outer shell to connect and fix the two together. The plug-in assembly includes a plug-in block fixed on the first outer shell and a plug-in slot provided on the second outer shell, the plug-in block is plugged into the plug-in slot, and the plug-in assembly also includes a sliding rod slidably installed on the second outer shell near the plug-in slot, when the plug-in block is plugged into the plug-in slot, one end of the sliding rod abuts against the plug-in block, and the other end of the sliding rod abuts against the inflatable sealing ring.

By adopting the above technical solution, the first outer shell and the second outer shell are plugged and fixed by the plug-in assembly, thereby ensuring the connection stability and sealing between the two, and reducing the leakage of the electrolyte in the inner shell and the pollution of the environment.

Optionally, the insertion rod and the sliding rod in the inflatable sealing ring are arranged opposite to each other, and the axes of the insertion rod and the sliding rod are located in the same straight line.

By adopting the above technical solution, the insertion rod and the sliding rod are relatively arranged on the inner and outer sides of the inflatable sealing ring, thereby reducing the situation where the inflatable sealing ring is squeezed by the sliding rod and damaged.

Optionally, a slider is fixed to the side wall of the sliding rod, and the slider has an inclined surface which gradually tilts downward from a side close to the inflatable sealing ring to a side away from the inflatable sealing ring. The plug-in assembly also includes a clamping rod slidably mounted on the second outer shell, one end of the clamping rod abuts against the inclined surface of the slider, and a side wall of the clamping rod close to the slider is fixed with a limit block to reduce the complete separation of the clamping rod from the second outer shell, and a clamping plate is rotatably mounted on the side wall of the other end of the clamping rod, the clamping plate can rotate in a vertical direction, and a spring is fixed between the clamping plate and the clamping rod, and a clamping groove is opened on the first outer shell, and the clamping plate is located in the clamping groove.

By adopting the above technical scheme, when the inflatable sealing ring is inflated, the sliding rod is squeezed to make the sliding rod abut against the plug-in block, so that the first outer shell and the second outer shell are plugged into each other and fixed, and in the process of sliding of the sliding rod, the clamping rod slides toward the clamping groove in the first outer shell, and after the clamping rod enters the clamping groove, the clamping plate automatically opens under the action of the spring, so that one end of the clamping rod is clamped in the clamping groove, and the other end of the clamping rod is restricted in the second outer shell under the action of the limit block, thereby further enhancing the plug-in stability of the first outer shell and the second outer shell.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The first outer shell and the second outer shell are plugged and installed on the outside of the inner shell, which plays a protective role and reduces the leakage caused by the direct impact of external force on the inner shell component. The sealing component enhances the sealing between the inner shell and the first outer shell and the second outer shell, reducing the environmental pollution caused by the leakage of electrolyte;

2. The insertion rod and the insertion tube are slidably connected in the inflatable sealing ring. When the inflatable sealing ring is impacted by external force, the inflatable sealing ring is squeezed to play a buffering role. When the inflatable sealing ring is squeezed, the insertion rod is retracted into the insertion tube to support the inflatable sealing ring, thereby reducing the situation where the inflatable sealing ring is excessively squeezed and caused to rupture;

3. When the inflatable sealing ring is inflated, the sliding rod is squeezed to make it abut against the plug-in block, so that the first outer shell and the second outer shell are plugged into each other and fixed, and in the process of sliding of the sliding rod, the clamping rod slides toward the clamping groove in the first outer shell, and after the clamping rod enters the clamping groove, the clamping plate automatically opens under the action of the spring, so that one end of the clamping rod is clamped in the clamping groove, and the other end of the clamping rod is restricted in the second outer shell under the action of the limit block, thereby further enhancing the plug-in stability of the first outer shell and the second outer shell.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a housing assembly.

FIG. 2 is a schematic diagram of the structure of the inner shell component and the outer shell component.

FIG. 3 is a partial enlarged view of the sealing assembly at point A in FIG. 2 .

FIG. 4 is a partial enlarged view of the sealing assembly and the plug-in assembly at point B in FIG. 2 .

Explanation of the accompanying drawings: 1. inner shell assembly; 11. inner shell; 12. positive electrode top plate; 13. negative electrode bottom plate; 2. outer shell assembly; 21. first outer shell; 211. first opening; 212. snap-in groove; 22. second outer shell; 221. second opening; 222. through hole; 223. limit groove; 224. perforation; 3. sealing assembly; 31. first sealing gasket; 32. second sealing gasket; 321. accommodating groove; 33. elastic pad; 331. groove; 34. inflatable sealing ring; 341. connecting pipe; 342. air inlet pipe; 343. sealing cover; 4. plug-in assembly; 41. plug-in block; 42. plug-in groove; 43. sliding rod; 431. sliding block; 44. snap-in rod; 441. limit block; 442. snap-in groove; 45. clamping plate; 46. spring; 5. support assembly; 51. plug-in rod; 52. plug-in tube.

Detailed ways

The present application is further described in detail below in conjunction with Figures 1-4.

The embodiment of the present application discloses an alkaline battery with a protective sealing structure.

1 and 2, an alkaline battery with a protective sealing structure includes an inner shell component 1 and an outer shell component 2 wrapped around the outer side of the inner shell component 1, and a sealing component 3 is also provided between the inner shell component 1 and the outer shell component 2. The sealing component 3 plays a sealing role to reduce leakage of the battery when it is impacted or collided by external force.

2 , the inner shell assembly 1 includes an inner shell 11 filled with electrolyte, a positive electrode top plate 12 and a negative electrode bottom plate 13. The positive electrode top plate 12 is fixedly mounted on one end surface of the inner shell 11, and the negative electrode top plate is fixedly mounted on the other end surface of the inner shell 11, so that the electrolyte is sealed in the inner shell. When the battery needs to be used, the positive electrode top plate 12 and the negative electrode bottom plate 13 are connected in the correct position, and electric energy is generated under the action of different electrolytes inside the alkaline battery to supply power for use.

The housing assembly 2 includes a first housing body 21 and a second housing body 22. The first housing body 21 and the second housing body 22 are both cylindrical. A plug-in assembly 4 is provided between the first housing body 21 and the second housing body 22. The plug-in assembly 4 plugs and fixes the first housing body 21 and the second housing body 22 at their respective sides close to each other.

A first opening 211 is formed through a side of the first outer shell 21 away from the second outer shell 22, and a second opening 221 is formed through a side of the second outer shell 22 away from the first outer shell 21. The first opening 211 ensures that the positive electrode top plate 12 can be connected to the outside world, and the second opening 221 ensures that the negative electrode bottom plate 13 can be connected to the outside world, thereby ensuring normal use of the battery.

The sealing assembly 3 includes a first sealing gasket 31 and a second sealing gasket 32. The first sealing gasket 31 and the second sealing gasket 32 are both annular rubber gaskets. The first sealing gasket 31 is fixed on the positive electrode top plate 12, and the second sealing gasket 32 is fixed on the negative electrode bottom plate 13. The axes of the first sealing gasket 31, the second sealing gasket 32 and the inner shell 11 are located in the same straight line. When the first outer shell 21 and the second outer shell 22 are plugged and fixed, the first sealing gasket 31 abuts against a side of the first outer shell 21 close to the first opening 211, and the second sealing gasket 32 abuts against a side of the second outer shell 22 close to the second opening 221.

The sealing assembly 3 also includes a plurality of annular elastic pads 33 fixed on the inner shell 11 or the negative electrode bottom plate 13. The plurality of elastic pads 33 are arranged at intervals along the length direction of the inner shell 11, and the axis of the elastic pads 33 and the inner shell 11 are located in the same straight line. A groove 331 is provided on the side of the elastic pad 33 away from the inner shell 11 or the negative electrode bottom plate 13, and the groove 331 makes the cross-section of the elastic pad 33 present an arc shape.

An inflatable sealing ring 34 is fixed on the side of each elastic pad 33 away from the inner shell 11 or the negative electrode bottom plate 13. The inflatable sealing ring 34 is made of a deformable material such as rubber. The axis of the inflatable sealing ring 34 is in the same straight line as the axis of the inner shell 11. One side of the inflatable sealing ring 34 is fitted and fixed to the groove 331. The side of the inflatable sealing ring 34 away from the elastic pad 33 abuts against the inner wall of the first outer shell 21 or the second outer shell 22.

2 and 3 , a connecting pipe 341 is connected through each of the multiple inflatable sealing rings 34 , and the connecting pipe 341 ensures that the inflation pressure in each inflatable sealing ring 34 is the same. An air intake pipe 342 is installed through the inflatable sealing ring 34 located at the negative electrode bottom plate 13 , and the air intake pipe 342 extends horizontally toward the direction close to the second sealing pad 32 , and the air intake pipe 342 is used to inflate the inflatable sealing ring 34 to ensure that the inflatable sealing ring 34 can buffer the external impact force.

A sealing cover 343 is also threadedly connected to the port of the air inlet pipe 342. The sealing cover 343 can seal the air inlet pipe 342 to ensure that the inflation pressure in the inflation sealing ring 34 remains constant. The second sealing gasket 32 is provided with a receiving groove 321 for the air inlet pipe 342 and the sealing cover 343 to be embedded. When the inflation to the inflation sealing ring 34 through the air inlet pipe 342 is completed, the sealing cover 343 closes the air inlet pipe 342. At this time, sealant can be filled into the receiving groove 321 to ensure the sealing of the second sealing gasket 32.

2 and 4, each inflatable sealing ring 34 is further provided with a support assembly 5, the number of the support assembly 5 is multiple, and the multiple inflatable sealing rings 34 are spaced apart in the inflatable sealing ring 34, the support assembly 5 includes an insertion rod 51 and an insertion tube 52, the insertion rod 51 is inserted into the insertion tube 52 and is slidably connected with the insertion tube 52, the end of the insertion rod 51 away from the insertion tube 52 is fixed to the side of the inflatable sealing ring 34 close to the first outer shell 21 or the second outer shell 22, and the end of the insertion tube 52 away from the insertion rod 51 is fixed to the side of the inflatable sealing ring 34 close to the elastic pad 33, when the inflatable sealing ring 34 is inflated and bulged The insertion rod 51 and the insertion tube 52 move in a direction away from each other, and the ends of the insertion rod 51 and the insertion tube 52 that are close to each other are plugged into each other. When the battery is hit by external force, the insertion rod 51 slides in the insertion tube 52 and retracts the insertion tube 52, which supports the inflation seal ring 34 and reduces the rupture of the inflation seal ring 34 caused by excessive squeezing. Even if a leak occurs at a certain point in the inner shell 11, multiple inflation seal rings 34 abut between the inner shell 11 and the first outer shell 21 and the second outer shell 22 to play a sealing role, thereby reducing the environmental pollution caused by the leakage of electrolyte to the outside.

2 and 4 , the plug-in assembly 4 includes an annular plug-in block 41 and an annular plug-in groove 42. The plug-in block 41 is coaxially fixed on the end face of the first outer shell 21 close to the second outer shell 22, and the plug-in groove 42 is coaxially opened on the end face of the second outer shell 22 close to the first outer shell 21. The plug-in block 41 and the plug-in groove 42 are aligned and plugged with each other, so that the first outer shell 21 and the second outer shell 22 together form a sealed shell.

A plurality of through holes 222 are provided on the inner wall of the second outer shell 22 near the plug-in slot 42. The plurality of through holes 222 are arranged opposite to the same inflatable sealing ring 34. The plurality of through holes 222 are all connected with the plug-in slot 42, and the axis of the through hole 222 is perpendicular to the length direction of the second outer shell 22. The plug-in assembly 4 also includes a sliding rod 43 slidably installed in the through hole 222. The number of the sliding rod 43 is the same as that of the through holes 222. The sliding rod 43 can slide in the through hole 222 in a direction approaching or away from the plug-in slot 42. When the plug-in block 41 is plugged into the plug-in slot 42, one end of the sliding rod 43 abuts against the plug-in block 41, and the other end of the sliding rod 43 abuts against the inflatable sealing ring 34. The sliding rod 43 abuts against the insertion rod 51 in the inflatable sealing ring 34 relative to each other, and the axis centers of 43 and 51 are located in the same straight line. The insertion rod 51 plays a supporting role from the inner side of the inflatable sealing ring 34 to reduce the possibility of rupture of the inflatable sealing ring 34.

A limiting groove 223 connected to the through hole 222 is further provided in the second outer shell 22. The limiting groove 223 is located on a side of the through hole 222 close to the first outer shell 21. A through hole 224 is provided on a side of the limiting groove 223 away from the through hole 222. The axis of the through hole 224 is perpendicular to the through hole 222, and the diameter of the through hole 224 is smaller than the width of the limiting groove 223.

A slider 431 is fixed on the side wall of each slide bar 43 . The slider 431 can slide laterally in the limiting groove 223 . The side of the slider 431 close to the plug-in groove 42 has an inclined surface that gradually tilts downward from away from the slide bar 43 to close to the slide bar 43 .

The plug-in assembly 4 also includes a clamping rod 44 slidably installed in the through hole 224, and one end of the clamping rod 44 extends into the limiting groove 223 and abuts against the inclined surface of the slider 431. Two limiting blocks 441 are also fixed to the side wall of the clamping rod 44. The two limiting blocks 441 are symmetrically arranged about the clamping rod 44, and the limiting blocks 441 are always located in the limiting groove 223.

The first outer shell 21 is provided with a clamping groove 212 which is opposite to the through hole 224. The slot width of the clamping groove 212 is smaller than the width of the clamping groove 212 away from the slot. The end of the clamping rod 44 away from the slider 431 extends into the clamping groove 212. The end of the clamping rod 44 away from the limit block 441 is rotatably installed with two clamping plates 45. The two clamping plates 45 are symmetrically arranged about the clamping rod 44. The clamping plates 45 can rotate in the vertical direction. Both sides of the clamping rod 44 are provided with clamping grooves 442 for the clamping plates 45 to be embedded. A spring 46 is fixed on one side of the clamping plate 45 close to the clamping groove 442. One end of the spring 46 is fixedly connected to the clamping groove 442, and the other end of the spring 46 is fixedly connected to the clamping plate 45. The clamping plate 45 can be clamped in the clamping groove 212 under the action of the spring 46.

When the sliding rod 43 slides toward the direction approaching the plug-in slot 42 under the squeezing action of the inflatable sealing ring 34, the sliding block 431 moves accordingly, causing the clamping rod 44 to slide in the direction of entering the clamping slot 212. When the upper end of the clamping rod 44 has not entered the clamping slot 212, the clamping plate 45 is located in the clamping slot 442. When the upper end of the clamping rod 44 slides into the clamping slot 212, the spring 46 causes the clamping plate 45 to be clamped into the clamping slot 212 based on the force of the clamping plate 45 moving away from the clamping rod 44. At this time, the limit block 441 is located in the limit slot 223, making the insertion between the first outer shell 21 and the second outer shell 22 more stable.

The implementation principle of an alkaline battery with a protective sealing structure in the embodiment of the present application is:

In order to ensure that the battery is not prone to leakage and environmental pollution after being hit by external force, an elastic pad 33 and an inflatable sealing ring 34 are arranged on the outside of the inner shell 11, and the first outer shell 21 and the second outer shell 22 are installed on the outside for sealing. After the installation is completed, the inflatable sealing ring 34 is inflated so that the inflatable sealing ring 34 can buffer the impact of external force and enhance the sealing performance. As the inflatable sealing ring 34 is inflated, the sliding rod 43 slides toward the direction close to the plug-in groove 42 and presses against the plug-in block 41, thereby enhancing the plug-in stability of the first outer shell 21 and the second outer shell 22. At the same time, the clamping rod 44 located in the second outer shell 22 slides toward the direction close to the first outer shell 21, so that the clamping plate 45 is clamped in the clamping groove 212, thereby further enhancing the connection stability of the first outer shell 21 and the second outer shell 22, improving the sealing effect, and reducing the leakage of electrolyte to the outside world and polluting the environment.

The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides an alkaline battery with protection seal structure, includes inner shell subassembly (1), inner shell subassembly (1) are including inner shell (11) that are equipped with electrolyte, the one end of inner shell (11) is fixed with anodal roof (12), the other end of inner shell (11) is fixed with negative pole bottom plate (13), its characterized in that: still including installing shell subassembly (2) in the shell subassembly (1) outside, shell subassembly (2) include first shell body (21) and second shell body (22), peg graft fixedly each other between first shell body (21) and second shell body (22), still be equipped with seal assembly (3) between shell subassembly (1) and shell subassembly (2), seal assembly (3) are including fixing first sealed pad (31) of anodal roof (12) and fix second sealed pad (32) on negative pole bottom plate (13), when first shell body (21) peg graft each other with second shell body (22), first shell body (21) support with first sealed pad (31) tightly, second shell body (22) support with second sealed pad (32).

2. An alkaline cell having a protective seal structure as defined in claim 1, wherein: the sealing assembly (3) comprises a plurality of annular inflatable sealing rings (34) arranged on the periphery side of the inner shell (11), the inflatable sealing rings (34) are arranged at intervals along the length direction of the inner shell (11), and one side, far away from the inner shell (11), of each inflatable sealing ring (34) is abutted against the first outer shell (21) and the second outer shell (22).

3. An alkaline cell having a protective seal structure as defined in claim 2, wherein: an elastic pad (33) is fixed on the peripheral side of the inner shell (11), and one side, close to the inner shell (11), of the inflatable sealing ring (34) is abutted against the elastic pad (33).

4. An alkaline cell having a protective seal structure as defined in claim 3, wherein: one side of the elastic pad (33) close to the inflatable sealing ring (34) is provided with an arc-shaped groove (331), and the side wall of the inflatable sealing ring (34) is attached to the groove (331).

5. An alkaline cell having a protective seal structure as defined in claim 2, wherein: connecting pipes (341) are all connected in a through mode among the plurality of inflatable sealing rings (34), an air inlet pipe (342) is further connected in a through mode on the inflatable sealing ring (34) close to one side of the negative electrode bottom plate (13), a sealing cover (343) is connected to the air inlet pipe (342) in a threaded mode, and a containing groove (321) for containing the air inlet pipe (342) and the sealing cover (343) is formed in the second sealing gasket (32).

6. An alkaline cell having a protective seal structure as defined in claim 2, wherein: a plurality of support assemblies (5) for reducing excessive extrusion of the inflatable sealing rings (34) are arranged in each inflatable sealing ring (34), and the support assemblies (5) are uniformly arranged in the inflatable sealing rings (34) at intervals.

7. An alkaline cell having a protective seal structure as defined in claim 6, wherein: the support assembly (5) comprises an inserting rod (51) and an inserting cylinder (52), one end of the inserting cylinder (52) is fixed on one side, close to the elastic pad (33), of the inflatable sealing ring (34), one end of the inserting rod (51) is fixed on one side, close to the first outer shell (21) or the second outer shell (22), of the inflatable sealing ring (34), and the other end of the inserting rod (51) extends into the inserting cylinder (52) and is in sliding connection with the inserting cylinder (52).

8. An alkaline cell having a protective seal structure as defined in claim 1, wherein: the novel air-filled sealing device is characterized in that a plug assembly (4) for enabling the first outer shell body (21) and the second outer shell body (22) to be fixedly plugged is arranged between the first outer shell body (21) and the second outer shell body (22), the plug assembly (4) comprises a plug block (41) fixed on the first outer shell body (21) and a plug groove (42) formed in the second outer shell body (22), the plug block (41) is plugged with the plug groove (42), the plug assembly (4) further comprises a sliding rod (43) which is slidably mounted on the second outer shell body (22) and is close to the plug groove (42), when the plug block (41) is plugged in the plug groove (42), one end of the sliding rod (43) is abutted with the plug block (41), and the other end of the sliding rod (43) is abutted with the air-filled sealing ring (34).

9. An alkaline cell having a protective seal structure as defined in claim 8, wherein: the inserted rod (51) in the inflatable sealing ring (34) is arranged opposite to the sliding rod (43), and the inserted rod (51) and the axis of the sliding rod (43) are positioned in the same straight line.

10. An alkaline cell having a protective seal structure as defined in claim 9, wherein: the side wall of slide bar (43) is fixed with slider (431), have on slider (431) from being close to one side of inflatable seal circle (34) and keeping away from one side of inflatable seal circle (34) and incline decurrent inclined plane gradually, grafting subassembly (4) still include clamping rod (44) of slidable mounting on second shell body (22), the one end of clamping rod (44) and the inclined plane butt of slider (431), one side wall that clamping rod (44) is close to slider (431) is fixed with stopper (441) that reduces clamping rod (44) and breaks away from second shell body (22) completely, rotate on the other end lateral wall of clamping rod (44) and install cardboard (45), cardboard (45) can rotate on the vertical direction, be fixed with spring (46) between cardboard (45) and clamping rod (44), joint groove (212) have been seted up on first shell body (21), cardboard (45) are located joint groove (212).