CN217984172U - Sealing device for high-pressure box - Google Patents

Abstract

The embodiment of the utility model provides a belong to high-speed motor car technical field, especially relate to a high-pressure tank sealing device for solve among the correlation technique sealing washer and become invalid easily, and then influence the problem of the sealed effect of high-pressure tank. The box body is provided with a first sealing element, the box cover is provided with a second sealing element, the box cover covers the box body, the first sealing element is attached to the box cover, the second sealing element is attached to the box body, the fastening assembly is connected with the box body and the box cover, and the fastening assembly is used for fixing the box cover on the box body; the fastening assembly is located on one side of the second sealing element away from the interior of the box body, and the second sealing element is located between the first sealing element and the fastening assembly. Because fastening components can be connected box and case lid, improve the sealing performance of second sealing member and first sealing member, simultaneously, because fastening components is located second sealing member and first sealing member and keeps away from the inside one side of box, still be favorable to keeping apart second sealing member and external environment, and then improve high-pressure tank sealing device's sealed effect.

Description

Sealing device for high-pressure box

Technical Field

The embodiment of the utility model provides a relate to high-speed motor car technical field, especially relate to a high-pressure tank sealing device.

Background

The high-voltage system of the high-speed motor train unit is an important item in the key technology of the motor train unit, wherein the high-speed motor train unit is generally provided with a high-voltage box on the roof so as to transmit high-voltage power of a pantograph to each section of power train compartment, and the high-voltage box can isolate a power supply while supplying power to the train, so that the safety of maintenance personnel is guaranteed.

In the related art, the high pressure tank generally includes a tank body and a tank cover detachably connected to the tank body, and a seal ring is generally disposed between the tank body and the tank cover to isolate dust, moisture, and the like in an external environment. However, during use, the sealing ring is prone to failure, and the sealing effect of the high-pressure tank is further affected.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a high-pressure tank sealing device for solve among the correlation technique sealing washer and become invalid easily, and then influence the problem of the sealed effect of high-pressure tank.

An embodiment of the utility model provides a high-pressure tank sealing device, include: the box body is provided with a first sealing element, the box cover is provided with a second sealing element, the box cover covers the box body, the first sealing element is attached to the box cover, the second sealing element is attached to the box body, the fastening assembly is connected with the box body and the box cover, and the fastening assembly is used for fixing the box cover on the box body; the fastening assembly is positioned on one side of the second sealing piece far away from the interior of the box body, and the second sealing piece is positioned between the first sealing piece and the fastening assembly.

In a possible implementation manner, a first frame is arranged on the box body, an installation part is arranged along the extending direction of the first frame, the installation part and the first frame are integrally formed, and the first sealing element is installed on the first frame through the installation part.

In one possible implementation, the case lid includes a base body, a second frame is disposed on the base body, the second frame has a fitting groove disposed along an extending direction of the second frame, and the second sealing member is mounted on the second frame through the fitting groove.

In a possible implementation manner, the case cover is provided with a mounting hole penetrating through the base body and the second frame, the first frame is provided with a sliding cavity arranged along the extending direction of the first frame, and the sliding cavity is provided with a mounting hole facing the mounting hole; the fastening assembly comprises a fastening bolt and a fastening sliding block, the fastening sliding block is provided with a threaded hole matched with the fastening bolt, the fastening sliding block is arranged in the sliding cavity in a sliding mode, and the fastening bolt penetrates through the mounting hole and is in threaded connection with the fastening sliding block.

In a possible implementation manner, the sliding cavity has a first communication port communicated with the outside, the first communication port is a rectangular opening, and an extending direction of the first communication port is parallel to an extending direction of the first frame.

In a possible implementation manner, a limiting sleeve is arranged on the mounting opening, the limiting sleeve is provided with a through hole right facing the mounting hole, the through hole is superposed with the central line of the mounting hole, and the aperture of the through hole is the same as that of the mounting hole.

In a possible implementation manner, the sliding cavity is provided with a second communication port communicated with the outside, and the cross-sectional area of the second communication port is larger than or equal to that of the sliding block; the box body further comprises a stop block, and the stop block is used for blocking the second communication port.

In a possible implementation manner, a sealing glue layer is arranged between the first sealing element and the mounting portion and between the second sealing element and the matching groove.

In a possible implementation manner, the first sealing element comprises an air bag, a plurality of strip-shaped structures arranged at one end of the air bag, and a mounting seat arranged at the other end of the air bag, and the rubber seat is provided with an opening structure matched with the mounting seat; the installation department deviates from the one end of first frame is provided with fillet structure.

In a possible implementation manner, one side of the box body is hinged to the box cover, and an air stay bar is further arranged between the box body and the box cover and used for driving the box cover to open or close.

The embodiment of the utility model provides a high-pressure tank sealing device, including box, case lid and fastening assembly, be provided with first sealing member on the box, be provided with the second sealing member on the case lid, the case lid covers on the box, first sealing member and case lid laminating, the laminating of second sealing member and box, fastening assembly is connected with box and case lid, fastening assembly is used for fixing the case lid on the box; the fastening assembly is positioned on one side of the second sealing element far away from the interior of the box body, and the second sealing element is positioned between the first sealing element and the fastening assembly. In the use of this high-pressure tank sealing device, fastening components can improve the sealing performance of second sealing member and first sealing member with box and case lid zonulae occludens, simultaneously, because fastening components is located the inside one side of box is kept away from to second sealing member and first sealing member, still is favorable to keeping apart second sealing member and external environment, and then improves high-pressure tank sealing device's sealed effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a high pressure tank in a closed state according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a high pressure tank in an open state according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a case cover according to an embodiment of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

FIG. 5 is an enlarged view of a portion of FIG. 3 at C;

FIG. 6 is an enlarged view of a portion of FIG. 4 at D;

fig. 7 is a partially enlarged view of fig. 2 at B.

Description of reference numerals:

10. a box body;

11. a first frame;

111. a first connecting column;

112. a second connecting column;

1121. a sliding cavity;

1122. a first communication hole;

1123. a second communication hole;

1124. an installation port;

113. a connecting plate;

114. an installation part;

12. a first seal member;

13. a limiting sleeve;

14. a stopper;

20. a box cover;

21. a second frame;

211. a gasket;

212. stopping the flange;

22. a second seal member;

23. a substrate;

30. a fastening assembly;

31. fastening a bolt;

32. fastening a slide block;

321. a threaded hole;

40. a hinge;

50. an air stay bar.

Detailed Description

For clear understanding of the technical solutions of the present application, the solutions of the related art will be described in detail first.

In the related art, the high pressure tank generally includes a tank body and a tank cover detachably connected to the tank body, and a seal ring is generally disposed between the tank body and the tank cover to isolate dust, moisture, and the like in an external environment. However, since the high-pressure tank is usually provided with only a single sealing ring, and one side of the sealing ring is usually in direct contact with the external environment, the sealing ring is easily aged and damaged in the using process, and the sealing effect of the high-pressure tank is further affected.

In view of this, an embodiment of the present invention provides a high pressure tank sealing device, in which a first sealing member is disposed on a tank body, a second sealing member is disposed on a tank cover, a fastening assembly is connected to the tank body and the tank cover, and the fastening assembly is used to fix the tank cover on the tank body; and the fastening assembly is positioned on one side of the second sealing element and the first sealing element far away from the interior of the box body. In the use of this high-pressure tank sealing device, fastening components can improve the sealing performance of second sealing member and first sealing member with box and case lid zonulae occludens, simultaneously, because fastening components is located the inside one side of box is kept away from to second sealing member and first sealing member, still is favorable to keeping apart second sealing member and external environment, and then improves high-pressure tank sealing device's sealed effect.

While several alternative implementations of the present invention will be described in conjunction with the appended drawings, it should be understood by those skilled in the art that the following implementations are illustrative only and not exhaustive, and that certain features or certain examples may be substituted, spliced or combined by those skilled in the art based on these implementations and still be considered as a disclosure of the present invention.

Referring to fig. 1, 2 and 4, the high pressure tank sealing device generally includes a tank 10, a tank cover 20 connected to the tank 10, and a fastening assembly 30, wherein a first sealing member 12 is disposed on the tank 10, a second sealing member 22 is disposed on the tank cover 20, the first sealing member 12 and the second sealing member 22 are used for sealing the tank 10 and the tank cover 20 when the tank 10 is combined with the tank cover 20, and the fastening assembly 30 is used for connecting the tank 10 to the tank cover 20.

Illustratively, the box 10 may be a substantially box-shaped structure, the box lid 20 may be a substantially rectangular flat plate, the box 10 may include a bottom plate and a side plate disposed at an edge of the bottom plate, the side plate may include a front side plate, a rear side plate, a left side plate and a right side plate, wherein the rear side plate is configured to be connected to a side of the box lid 20, the front side plate is disposed opposite to the rear side plate, and the left side plate is disposed opposite to the right side plate. As shown in fig. 2, a hinge 40 may be disposed on a side of the rear side plate close to the lid 20, so that the lid 20 is hinged to the box body 10 through the hinge 40, so that the lid 20 can rotate relative to the rear side plate, thereby opening and closing the lid 20.

Optionally, the high pressure tank sealing device may further be provided with an air stay 50, and the air stay 50 is disposed between the tank body 10 and the tank cover 20 for driving the tank cover 20 to close or open. With continued reference to fig. 2, in the present embodiment, two air struts 50 may be provided, wherein the air strut 50 on the left side of the illustrated position is used to connect the corresponding side of the left side plate and the box cover 20, and the air strut 50 on the right side of the illustrated position is used to connect the corresponding side of the right side plate and the box cover 20, so that the two air struts 50 are provided to facilitate the opening and closing operations of the box cover 20 by the operator.

In this embodiment, the side that the preceding curb plate, posterior lateral plate, left side board and the right side board of box 10 deviate from the bottom plate all can be provided with first frame 11 to improve the structural strength of box 10, prolong the life of box 10. Illustratively, the first bezel 11 may include a connection frame and a connection plate 113 connected to the connection frame. As shown in fig. 6, the connection frame may include a first connection column 111 and a second connection column 112 that are arranged in parallel and extend in the same direction, the first connection column 111 and the second connection column 112 are both rectangular column structures with hollow interiors, and opposite sides of the first connection column 111 and the second connection column 112 are coplanar. Further, the first connecting column 111 may be disposed near the inside of the box body 10, the second connecting column 112 may be disposed far away from the inside of the box body 10, and the connecting plate 113 may be coplanar with the opposite sides of the first connecting column 111 and the second connecting column 112, so as to dispose a metal plate on the connecting plate 113 and thus constitute a corresponding side plate of the box body 10.

Alternatively, the first connecting column 111 may be provided with a mounting portion 114, the mounting portion 114 may be substantially a flat plate structure, and the extending direction of the mounting portion 114 is the same as the extending direction of the first frame 11. For example, the mounting portion 114 may be disposed on a side of the first connecting column 111 close to the case cover 20, and an end of the mounting portion 114 facing away from the first frame 11 is provided with a rounded corner structure, so that the first sealing member 12 is mounted through the rounded corner structure, so that the first sealing member 12 is disposed on the case body 10. When the box body 10 is combined with the box cover 20, the first sealing member 12 can be tightly attached to the box cover 20, so as to seal the box body 10 and the box cover 20 and prevent moisture and dust in the external environment from entering the high-pressure box sealing device.

It should be noted that the first connecting post 111, the second connecting post 112, the connecting plate 113 and the mounting portion 114 can be integrally formed, so as to ensure the structural strength of the first frame 11, and further ensure the tight connection between the box body 10 and the box cover 20.

Accordingly, the first seal 12 may include an air bag, a plurality of strip structures disposed at one end of the air bag, and a mounting seat disposed at the other end of the air bag. The air bag may be a rubber sleeve with air inside, the extending direction of the air bag is parallel to the extending direction of the first frame 11, and the cross section of the air bag in the cross section perpendicular to the extending direction of the air bag may be circular. A plurality of strip structures may be disposed at one end of the airbag close to the case cover 20, the strip structures may be, for example, rubber strips, the mounting seat may be disposed at one end of the airbag close to the case body 10, the mounting seat may be a rubber seat, and the mounting seat has an opening structure for cooperating with the mounting portion 114, so that the opening structure can be sleeved on a fillet structure of the mounting portion 114, so that the first sealing member 12 is connected with the mounting portion 114. In a specific implementation, the air bag, the strip-shaped structure and the mounting seat can be integrally formed rubber pieces. When the case body 10 is combined with the case cover 20, the strip-shaped structure of the first sealing member 12 and the airbag are tightly attached to the case cover 20, and the strip-shaped structure and the airbag are elastically deformed under the pressure of the case cover 20, so that the sealing performance of the first sealing member 12 is ensured.

Optionally, a layer of sealant may be disposed between the first seal 12 and the mounting portion 114. In this embodiment, a sealant layer may be disposed between the mounting seat and the mounting portion 114, so as to ensure the connection strength between the first sealing element 12 and the mounting portion 114, prevent the first sealing element 12 from deviating or falling off, and further facilitate improving the sealing performance of the first sealing element 12.

In this embodiment, referring to fig. 3, the cover 20 may include a base 23 and a second rim 21 disposed at an edge of the base 23. The base 23 may be a substantially rectangular flat plate, the base 23 being used to close off the box 10. In one specific implementation, the material of the base 23 may include glass fiber reinforced plastic, for example, to ensure that the cover 20 has low weight while having good strength and electrical insulation. Second frame 21 can roughly become U type structure to make the edge of base member 23 set up in second frame 21, be favorable to preventing that base member 23 edge from colliding with impaired, improve case lid 20's intensity. Further, a side of the second frame 21 close to the box 10 may be provided with a matching groove, and an extending direction of the matching groove is parallel to an extending direction of the second frame 21. One end of the second sealing member 22 may be inserted into the fitting groove so that the second sealing member 22 is coupled with the cover 20. When the box body 10 is combined with the box cover 20, the second sealing element 22 can be tightly attached to the box body 10, so as to seal the box body 10 and the box cover 20 and prevent moisture and dust in the external environment from entering the high-pressure box sealing device.

Further, the second sealing element 22 may be a rubber strip, and a sealing adhesive layer may be disposed between the second sealing element 22 and the matching groove, so as to ensure the connection strength between the second sealing element 22 and the matching groove, prevent the second sealing element 22 from deviating or falling off, and further facilitate improving the sealing performance of the second sealing element 22.

Further, one side of the second frame 21 close to the box body 10 may further be provided with a stopping edge 212, an extending direction of the stopping edge 212 is parallel to an extending direction of the second frame 21, and the stopping edge 212 is located at one end of the second frame 21 close to the external environment, so that the first sealing member 12 and the second sealing member 22 can further isolate the external environment, thereby preventing the first sealing member 12 and the second sealing member 22 from aging and deforming, and further prolonging the service life of the first sealing member 12 and the second sealing member 22. The second frame 21 and the stopping edge 212 may be integrally formed, so as to ensure the structural strength of the second frame 21, and further improve the sealing performance of the first sealing element 12 and the second sealing element 22.

It is noted that when the case body 10 is combined with the cover 20, the first sealing member 12 is located at a side close to the inside of the case body 10, and the second sealing member 22 is located at a side away from the inside of the case body 10. Through setting up first sealing member 12 and second sealing member 22, be favorable to realizing the double seal to high-pressure tank sealing device, through the sealed cooperation of first sealing member 12 with second sealing member 22, be favorable to improving high-pressure tank sealing device's protection leakproofness, improved the security of train in-process of traveling.

In this embodiment, the fastening assembly 30 may include a fastening bolt 31 and a fastening slider 32. Illustratively, the fastening slider 32 may have a substantially hexahedral structure, the fastening slider 32 is located in the sliding cavity 1121 of the first frame 11, and the fastening slider 32 may have a threaded hole 321 engaged with the fastening bolt 31. The fastening bolt 31 may be a hexagon socket head cap bolt, and the fastening bolt 31 penetrates through the case cover 20 and is in threaded connection with the fastening slider 32, so that the case body 10 and the case cover 20 are tightly connected together, which is beneficial to further improving the sealing performance of the first sealing element 12 and the second sealing element 22.

It should be noted that, referring to fig. 3 and 5, the fastening assembly 30 is located on a side of the second sealing member 22 away from the inside of the box body 10, and by providing the fastening assembly 30, contact between the second sealing member 22 and the external environment can be further avoided, so as to further avoid the second sealing member 22 from being damaged due to aging. By improving the sealing performance of the second sealing element 22, the normal operation of the double sealing is ensured, the protective sealing performance of the high-pressure tank sealing device is further improved, and the safety of the train in the running process is further improved.

Alternatively, with continued reference to fig. 6 and 7, the cover 20 may be provided with mounting holes for mounting the fastening bolts 31, and the mounting holes may be provided through the base 23 and the second rim 21 so as to improve the bonding strength between the fastening bolts 31 and the cover 20. Further, one side that second frame 21 deviates from box 10 can also be provided with gasket 211, is favorable to improving fastening bolt 31's locking effect, guarantees the zonulae occludens between box 10 and the case lid 20.

Alternatively, the cylindrical space inside the second connecting pillar 112 is the sliding cavity 1121, and the fastening slider 32 can be slidably disposed in the sliding cavity 1121. The side of the second connecting column 112 close to the cover 20 may further be provided with an installation opening 1124 communicating with the sliding cavity 1121, and the installation opening 1124 may face the installation hole on the cover 20, so that the fastening bolt 31 may extend into the sliding cavity 1121 through the installation hole and the installation opening 1124, and be in threaded connection with the fastening slider 32 in the sliding cavity 1121. It should be noted that the mounting opening 1124 may be a circular opening, and the cross-sectional area of the mounting opening 1124 may be larger than the cross-sectional area of the mounting hole for the fastening bolt 31 to extend into the sliding cavity 1121.

Further, a stop collar 13 may be disposed on the mounting opening 1124. For example, the position limiting sleeve 13 may be a substantially cylindrical structure, and the position limiting sleeve 13 has a through hole facing the mounting hole, the through hole coincides with the center line of the mounting hole, and the through hole has the same diameter as the mounting hole. The through-hole may guide the fastening bolt 31 so that the fastening bolt 31 is smoothly coupled with the fastening slider 32. Similarly, the position-limiting sleeve 13 can also indicate the fastening sliding block 32, and an operator can drive the fastening sliding block 32 to move in the sliding cavity 1121, so that the threaded hole 321 of the fastening sliding block 32 is opposite to the through hole of the position-limiting sleeve 13, so that the fastening bolt 31 is in threaded connection with the fastening sliding block 32.

Optionally, the sliding cavity 1121 may have a first communication port 1122 communicating with the outside. For example, the first communication port 1122 may be opened at a side of the second connection column 112 facing away from the inside of the box 10, and the first communication port 1122 may be a rectangular opening and has an extending direction parallel to the extending direction of the first frame 11. An operator can drive the fastening slider 32 in the sliding cavity 1121 to slide through the first communication port 1122 until the threaded hole 321 of the fastening slider 32 faces the through hole of the stop collar 13, so that the fastening bolt 31 is in threaded connection with the fastening slider 32.

Alternatively, the sliding cavity 1121 may have a second communication port 1123 communicating with the outside. For example, the second communication port 1123 may be a rectangular opening, the second communication hole 1123 may be opened at a side of the second connection column 112 facing away from the inside of the case 10, and the second communication port 1123 may communicate with the first communication port 1122. In this embodiment, the cross-sectional area of the second communication port 1123 is greater than or equal to the cross-sectional area of the fastening slider 32, so that the fastening slider 32 can be placed in the slide cavity 1121 through the second communication port 1123. Accordingly, the case 10 may further include a stopper 14, and the stopper 14 is used to block the second communication port 1123. The stopper 14 includes a flat plate for blocking the second communication port 1123 and a rectangular block connected to the flat plate for blocking a part of the sliding cavity 1121 so as to prevent the fastening slider 32 from falling out of the second communication port 1123.

To sum up, the embodiment of the present invention provides a high pressure tank sealing device, including box 10, the case lid 20 and the fastening assembly 30 that are connected with box 10, be provided with first sealing member 12 on the box 10, be provided with second sealing member 22 on the case lid 20, fastening assembly 30 is connected with box 10 and case lid 20, and fastening assembly 30 is used for fixing case lid 20 on box 10, and fastening assembly 30 is located the inside one side of box 10 is kept away from to second sealing member 22, and second sealing member 22 is located between first sealing member 12 and the fastening assembly 30. In the use process of the high-pressure tank sealing device, the fastening assembly 30 can tightly connect the tank body 10 and the tank cover 20, so that the sealing performance of the second sealing element 22 and the first sealing element 12 is improved, and meanwhile, as the fastening assembly 30 is positioned on one side of the second sealing element 22 and the first sealing element 12, which is far away from the inside of the tank body 10, the second sealing element 22 and the external environment are favorably isolated, so that the sealing effect of the high-pressure tank sealing device is improved.

In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the embodiments of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "attached" or "detached" or "connected" or "fixed" should be broadly construed, for example, as a fixed connection, a detachable connection, or an integral part; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (10)

1. A high pressure tank seal, comprising: the box cover is covered on the box body, the first sealing element is attached to the box cover, the second sealing element is attached to the box body, the fastening assembly is connected with the box body and the box cover, and the fastening assembly is used for fixing the box cover on the box body;

the fastening assembly is positioned on one side of the second sealing piece far away from the interior of the box body, and the second sealing piece is positioned between the first sealing piece and the fastening assembly.

2. The high pressure tank sealing device according to claim 1, wherein a first frame is provided on the tank body, and a mounting portion is provided along an extending direction of the first frame, the mounting portion being integrally formed with the first frame, and the first sealing member being mounted on the first frame through the mounting portion.

3. The high pressure tank sealing arrangement of claim 2, wherein the tank cover includes a base body having a second rim disposed thereon, the second rim having a mating groove disposed along a direction of extension thereof, the second seal member being mounted on the second rim via the mating groove.

4. The high-pressure tank sealing device according to claim 3, wherein the tank cover has a mounting hole penetrating through the base and the second frame, the first frame has a sliding cavity provided along an extending direction thereof, and the sliding cavity has a mounting opening facing the mounting hole;

the fastening assembly comprises a fastening bolt and a fastening sliding block, the fastening sliding block is provided with a threaded hole matched with the fastening bolt, the fastening sliding block is arranged in the sliding cavity in a sliding mode, and the fastening bolt penetrates through the mounting hole and is in threaded connection with the fastening sliding block.

5. The high-pressure tank sealing device according to claim 4, wherein the sliding chamber has a first communication port communicating with the outside, the first communication port having a rectangular opening and extending in a direction parallel to the extending direction of the first rim.

6. The high-pressure tank sealing device according to claim 4, wherein a limiting sleeve is arranged on the mounting opening, the limiting sleeve is provided with a through hole facing the mounting hole, the through hole is coincident with the center line of the mounting hole, and the diameter of the through hole is the same as that of the mounting hole.

7. The high pressure tank sealing device according to claim 4, wherein the sliding chamber has a second communication port communicating with the outside, and a cross-sectional area of the second communication port is larger than or equal to a cross-sectional area of the slider;

the box body further comprises a stop block, and the stop block is used for blocking the second communication port.

8. A high pressure tank sealing arrangement according to claim 3, characterised in that a layer of sealing glue is provided between the first sealing element and the mounting portion and between the second sealing element and the mating groove.

9. The high pressure tank sealing arrangement of claim 5, wherein the first seal comprises an air bag, a plurality of strip structures disposed at one end of the air bag, and a mounting seat disposed at the other end of the air bag, the mounting seat having an open structure for mating with the mounting portion;

the installation department deviates from the one end of first frame is provided with fillet structure.

10. The high-pressure tank sealing device according to claim 1, wherein one side of the tank body is hinged to the tank cover, and an air stay is further arranged between the tank body and the tank cover and used for driving the tank cover to open or close.

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