Carbon fiber box sealing structure

Abstract

The invention relates to a carbon fiber box body sealing structure which is applied to a carbon fiber box body, the carbon fiber box body comprises a door frame and a door plate, the door frame is provided with a groove with the shape consistent with that of the section of the door frame, and an inflation sealing ring is arranged in the groove; a cavity is formed in the position, around the length direction of the groove, of the door frame, connecting blocks are fixedly connected to the upper surface and the lower surface of the sealing ring in the length direction, and the connecting blocks penetrate through the side wall of the door frame and are slidably inserted into the cavity; a cavity is formed in the door frame, telescopic plates with the telescopic height are slidably connected into the cavity and slide in the depth direction of the door frame, a control assembly for controlling the telescopic plates to stretch out and draw back is further arranged in the cavity, and in the initial state, the distance between the surfaces, close to each other, of the two telescopic plates is larger than the distance between the surfaces, away from each other, of the two connecting blocks. A driving assembly for driving the telescopic plate to slide is further arranged in the cavity, and a locking assembly for fixing the telescopic plate is arranged on the door frame. The carbon fiber box has the effect of reducing the processing cost of the carbon fiber box.

Description

Technical Field

[0001] The present application relates to the field of carbon fiber boxes, and in particular to a carbon fiber box sealing structure. Background Art

[0002] Carbon fiber boxes are generally used in special sealing requirements or special environments, so the sealing performance of carbon fiber is required to be high. This requires that when the door of the carbon fiber box is closed, the door and the door frame of the carbon fiber box are tightly closed. Therefore, the matching clearance between the contact surface of the door frame and the door is required to be high, and the processing requirements of the contact surface between the door frame and the door are also high, resulting in high processing costs for the carbon fiber box. Summary of the invention

[0003] In order to reduce the processing cost of a carbon fiber box, the present application provides a carbon fiber box sealing structure.

[0004] The present application provides a carbon fiber box sealing structure adopting the following technical solution: A carbon fiber box sealing structure is applied to a carbon fiber box, the carbon fiber box comprising a door frame and a door panel, the door frame is provided with a groove having a shape consistent with the cross-sectional shape of the door frame, and an inflatable sealing ring is provided in the groove; The door frame is provided with a cavity at a position around the groove in the length direction, and the upper surface and the lower surface of the sealing ring in the length direction are fixedly connected with a connecting block, which passes through the side wall of the door frame and is slidably inserted in the cavity; A highly retractable telescopic plate is slidably connected in the cavity, and the telescopic plate slides along the depth direction of the door frame. A control component for controlling the telescopic plate to be retracted is also provided in the cavity. In an initial state, the distance between the surfaces of the two telescopic plates that are close to each other is greater than the distance between the surfaces of the two connection blocks that are away from each other. A driving component for driving the telescopic plate to slide is also provided in the cavity, and a locking component for fixing the telescopic plate is provided on the door frame.

[0005] By adopting the above technical solution, the operator puts the inflatable sealing ring into the groove, and the connecting block is slidably inserted in the cavity. At this time, the distance between the surfaces of the two telescopic plates that are close to each other is greater than the distance between the surfaces of the two connecting blocks that are away from each other, so the operator can continue to push the inflatable sealing ring into the groove, and at the same time, the control component works to extend the telescopic plate, and the drive component also drives the telescopic plate to move away from the door panel. When the inflatable sealing ring moves into place, the operator uses the locking component to fix the telescopic plate, thereby fixing the connecting block and the inflatable sealing ring. When the door panel is closed, the inflatable sealing ring seals the gap between the door frame and the door panel, so that the allowable matching error range of the contact surfaces between the door panel and the door frame is wider, which reduces the processing requirements of the door frame and the door, thereby reducing the processing cost of the carbon fiber box.

[0006] Optionally, the telescopic plate includes a sleeve plate with a groove, the grooves of the two sleeve plates are both facing the side close to the inflatable sealing ring, a plurality of connecting springs are connected to the bottom wall of the groove of the sleeve plate, a plug-in plate is slidably inserted in the groove of the sleeve plate, and the plug-in plate is connected to the connecting springs.

[0007] By adopting the above technical solution, the plug-in board moves along the sleeve board, and the connecting spring is deformed while the plug-in board moves. The plug-in board, the connecting spring and the sleeve board cooperate to enable the overall height of the plug-in board and the sleeve board to be telescopically changed.

[0008] Optionally, a T-shaped slider is fixedly connected to the outer bottom wall of the sleeve plate, and a sliding groove adapted to the slider is opened on the cavity wall corresponding to the cavity and the slider. The length direction of the sliding groove is set along the depth direction of the door frame, and the slider is slidably inserted in the sliding groove.

[0009] By adopting the above technical solution, the slide block cooperates with the slide groove to make the sleeve plate and the door frame slide together, so that the telescopic plate can slide.

[0010] Optionally, the driving assembly includes a rope-winding wheel installed in the cavity, the rope-winding wheel is fixedly connected to a gear, the gear is rotatably installed in the cavity, a pull rope is wound around the rope-winding wheel, both ends of the pull rope are respectively fixed to corresponding sliders, and a rack meshing with the gear is fixedly connected to the inflatable sealing ring, and the rack penetrates the corresponding groove wall of the groove and penetrates into the cavity; A side of the sliding block close to the door frame is connected with a return spring, and a side of the return spring away from the sliding block is connected and fixed to a cavity wall corresponding to the cavity.

[0011] By adopting the above technical solution, in the initial state, the reset spring limits the slider, and the control component limits the telescopic plate, so that the two telescopic plates are located on the side of the door frame close to the door panel, and when the operator inserts the inflatable sealing ring into the groove, the rack is inserted into the cavity, and the rack engages with the gear ring; as the operator continues to push the inflatable sealing ring into the groove, the inflatable sealing ring drives the rack to move, and the rack drives the gear and the rope winding wheel to rotate, and the rope winding wheel rotates to wrap the pull rope around the rope winding wheel, and the pull rope can pull the slider and the corresponding sleeve plate to move, and at the same time the slider compresses the reset spring.

[0012] When the operator pulls the inflatable sealing ring out of the groove, the inflatable sealing ring drives the rack to move, the rack drives the gear and the rope winding wheel to rotate, the rope winding wheel rotates to release the draw rope, and at the same time the reset spring restores its deformation and pushes the draw rope, the slider and the sleeve to move.

[0013] Optionally, the control component includes a sliding block slidably inserted in the sliding groove, the sliding block is located on the side of the sliding block close to the outside of the door frame, the pull rope passes through the sliding block and is fixed to the sliding block, a limit spring is provided between the sliding block and the sliding block, two ends of the connecting spring are respectively fixed to the sliding block and the sliding block, a hinged rod is hinged on the sliding block, and the end of the hinged rod away from the sliding block is hinged to the plug-in plate.

[0014] By adopting the above technical solution, when the rope winding wheel winds and retracts the pull rope, the pull rope drives the sliding block to move, so that the sliding block moves in the direction close to the slider, and at the same time, the sliding block drives the corresponding end of the hinged rod to move, and the hinged rod rotates in the direction close to the sleeve plate. At the same time, the upper end of the hinged rod pushes the plug-in plate to move upward, thereby extending the telescopic plate; when the limit spring is compressed to the limit, as the pull rope continues to pull the sliding block, the sliding block drives the slider to move, and the slider compresses the reset spring.

[0015] When the reset spring recovers its deformation and pushes the slider to move to the initial position, the limit spring also recovers its deformation and pushes the sliding block to move to the initial position. The movement of the sliding block drives the hinged rod to rotate and reset. At the same time, the connecting spring recovers its deformation and drives the plug-in plate to move into the sleeve plate, shortening the telescopic plate. When the reset spring, the connecting spring and the limit spring return to their initial state, the telescopic plate retracts to its initial length.

[0016] Optionally, a plurality of limiting rings for fixing the pull rope are fixedly connected to the cavity wall of the cavity, and the plurality of limiting rings are distributed along the length direction of the pull rope.

[0017] By adopting the above technical solution, the limiting ring limits the pull rope, thereby reducing the occurrence of the pull rope being entangled and knotted.

[0018] Optionally, a hard plate is provided between the inflatable sealing ring and the rack, the hard plate is fixed to the inflatable sealing ring, and the rack is fixed to the hard plate.

[0019] By adopting the above technical solution, the force on the inflatable sealing ring is made more uniform, and the situation where the inflatable sealing ring is damaged by the rack is reduced.

[0020] Optionally, the locking assembly includes a screw rod threadedly connected to a surface of the door frame located inside the carbon fiber box, and a portion of the screw rod is located in the cavity.

[0021] By adopting the above technical solution, when the telescopic plate moves, the upper end surface of the screw rod is lower than the inner bottom wall of the cavity. When the telescopic plate moves into place, the screw rod is turned to make the screw rod protrude from the inner bottom wall of the cavity. The screw rod can limit the telescopic plate, and the telescopic plate limits the connecting block and the inflatable sealing ring.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The processing cost of the carbon fiber box is reduced by providing a groove, an inflatable sealing ring, a cavity, a connecting block, a telescopic plate, a control component, a driving component and a locking component; 2. The telescopic plate can be driven to move by setting a rope wheel, gear, pull rope, slider, rack and return spring; 3. The extension and retraction of the telescopic plate can be controlled by setting a sliding block, a limit spring and a hinged rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the carbon fiber box according to an embodiment of the present application.

[0024] Figure 2 It is a cross-sectional view showing the positional relationship between the sealing ring and the door frame according to an embodiment of the present application.

[0025] Figure 3 It is a cross-sectional view of the control component structure of an embodiment of the present application.

[0026] Figure 4 It is a cross-sectional view of the locking assembly structure of an embodiment of the present application.

[0027] Explanation of the accompanying drawings: 1. door frame; 11. groove; 12. cavity; 13. strip hole; 14. slide groove; 2. door panel; 3. inflatable sealing ring; 31. connecting block; 32. matching plate; 4. hard plate; 5. telescopic plate; 51. sleeve plate; 511. slider; 512. connecting groove; 52. connecting spring; 53. plug-in board; 6. drive assembly; 61. rack; 62. support plate; 63. gear; 64. rotating rope wheel; 65. pulley; 66. reset spring; 7. control assembly; 71. hinged rod; 72. sliding block; 73. limit spring; 8. locking assembly; 81. threaded hole; 82. screw. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 This application is described in further detail.

[0029] The present application embodiment discloses a carbon fiber box sealing structure. Figure 1 and Figure 2 , arranged on a carbon fiber box, the carbon fiber box includes a door frame 1 and a door panel 2. A groove 11 is provided on the side wall of the door frame 1 close to the door panel 2, and the shape of the groove 11 is consistent with the shape of the longitudinal section of the door panel 2; a cavity 12 is provided around the door frame 1 in the length direction of the groove 11. A corresponding inflatable sealing ring 3 is provided in the groove 11, and a hard plate 4 is fixedly connected to the side of the inflatable sealing ring 3 close to the inside of the door frame 1, and the hard plate 4 is inserted in the groove 11.

[0030] Reference Figure 2 and Figure 3A connecting block 31 is vertically fixedly connected to the upper surface and the middle part of the lower surface of the inflatable sealing ring 3 in the length direction, and a matching block is fixedly connected to the connecting block 31, and the cross-sectional area of ​​the matching block is larger than the cross-sectional area of ​​the connecting block 31; strip holes 13 adapted to the connecting block 31 are opened on the two opposite long side groove walls of the groove 11, and the strip holes 13 are connected to the cavity 12, and the length direction of the strip holes 13 is arranged along the depth direction of the door frame 1.

[0031] A telescopic plate 5 is slidably connected to the upper and lower walls of the cavity 12. The length direction of the telescopic plate 5 is set along the length direction of the door panel 2, and the height direction of the telescopic plate 5 is telescopic; the telescopic plate 5 includes a sleeve plate 51 with a groove, and a plurality of connecting springs 52 are fixedly connected to the bottom wall of the groove of the sleeve plate 51, and the plurality of connecting springs 52 are distributed along the length direction of the sleeve plate 51; a plug-in plate 53 is slidably inserted in the groove of the sleeve plate 51, and the connecting spring 52 is fixedly connected to the plug-in plate 53.

[0032] A T-shaped slider 511 is fixedly connected to the outer bottom wall of the two sleeve plates 51, and a slide groove 14 adapted to the slider 511 is opened on the upper cavity wall and the lower cavity wall of the cavity 12. The length direction of the slide groove 14 is set along the depth direction of the door frame 1, and each slider 511 is slidably inserted in the corresponding slide groove 14. The slider 511 cooperates with the slide groove 14 to make the telescopic plate 5 and the cavity 12 slide and cooperate; the connecting spring 52 limits the plug-in plate 53, so that the gap between the surfaces of the two plug-in plates 53 that are close to each other is d1, and the distance between the surfaces of the two matching blocks that are far away from each other is less than d1.

[0033] A driving assembly 6 for driving the telescopic plate 5 to slide along the depth direction of the door frame 1 is provided in the cavity 12. The driving assembly 6 includes a rack 61 vertically fixedly connected to the side wall of the hard plate 4 away from the inflatable sealing ring 3. The length direction of the rack 61 is arranged along the depth direction of the door frame 1. A hole for inserting the rack 61 into the cavity 12 is opened on the groove wall of the groove 11; a support rod is vertically fixedly connected to the cavity wall of the cavity 12 on the side close to the interior of the door frame 1, and the end of the support rod is rotatably connected to a gear 63 meshing with the rack 61.

[0034] A rope reel coaxial with the gear 63 is fixedly connected to one end surface of the gear 63, and a pull rope 65 is wound on the rope reel, one end of the pull rope 65 passes through one of the sliders 511, and the other end of the pull rope 65 passes through the other slider 511; a return spring 66 is fixedly connected to the side of the slider 511 close to the inside of the door frame 1, and the return spring 66 is located in the slide groove 14, and the end of the return spring 66 away from the slider 511 is fixed to the groove wall corresponding to the end of the slide groove 14, and the return spring 66 limits the slider 511 and the telescopic plate 5, so that the telescopic plate 5 is located on the side of the cavity 12 close to the door panel 2. A plurality of limiting rings are fixedly connected to the cavity wall of the cavity 12, and the plurality of limiting rings are arranged along the length direction of the pull rope 65, and the pull rope 65 is passed through the limiting rings, and the limiting rings guide the pull rope 65.

[0035] A control component 7 for driving the telescopic plate 5 to extend and retract is also provided in the cavity 12. The control component 7 includes a hinged rod 71 hinged on the side wall of the plug-in plate 53 close to the door panel 2. A connecting groove 512 for the hinged rod 71 to pass through is provided on the sleeve plate 51. The length direction of the connecting groove 512 is arranged along the height direction of the door frame 1. A sliding block 72 is hinged at one end of the hinged rod 71 away from the plug-in plate 53. The sliding block 72 is slidably inserted in the corresponding sliding groove 14, and the sliding block 72 is located on the side of the slider 511 close to the door panel 2. Both ends of the pull rope 65 are fixed to the corresponding sliding block 72.

[0036] A limit spring 73 is provided between the sliding block 72 and the slider 511, and the two ends of the limit spring 73 are respectively fixed to the sliding block 72 and the slider 511. The limit spring 73 limits the sliding block 72 so that there is a gap between the sliding block 72 and the slider 511. The elastic force of the limit spring 73 is smaller than the elastic force of the return spring 66. In the initial state, the connecting spring 52 and the limit spring 73 are not subjected to external force, the plug-in plate 53 is plugged into the sleeve plate 51, and the hinge rod 71 is inclined.

[0037] Reference Figure 2 and Figure 4 A locking assembly 8 for limiting the telescopic plate 5 and the sliding block 72 is provided in the door frame 1. The locking assembly 8 includes screws 82 threadedly connected to the top surface and the bottom surface of the door frame 1, and one end of the two screws 82 extends into the cavity 12; when installing the inflatable sealing ring 3, the operator first rotates the two screws 82 so that the end surface of the screw 82 located in the cavity 12 does not protrude from the corresponding cavity wall of the cavity 12.

[0038] In the initial state, the matching plate 32 is located in the cavity 12, the hard plate 4 is located in the groove 11, and the rack 61 is partially located in the cavity 12. The rack 61 is meshed with the gear 63. As the operator pushes the inflatable sealing ring 3 into the groove 11, the rack 61 drives the gear 63 and the rope winding wheel to rotate, so that the pull rope 65 is recovered and wound onto the rope winding wheel; while the pull rope 65 is recovered and wound, it pulls the sliding block 72 to move toward the direction close to the slider 511, and the slider 511 moves to stretch the limit spring 73.

[0039] The sliding block 72 moves and drives the corresponding end of the hinge rod 71 to move, so that the upper end of the hinge rod 71 drives the plug-in plate 53 to move, and the sliding plate moves out of the groove of the sleeve plate 51, and at the same time the plug-in plate 53 stretches the connecting spring 52; when the limit spring 73 is compressed to the limit, the distance between the surfaces of the two plug-in plates 53 approaching each other is smaller than the distance between the surfaces of the two matching plates 32 moving away from each other. As the pull rope 65 continues to be wound and recovered, the pull rope 65 drives the sliding block 72, the slider 511 and the telescopic plate 5 to move, so that the telescopic plate 5 moves in the direction away from the door panel 2, and the slider 511 moves to compress the reset spring 66.

[0040] When the hard plate 4 contacts the groove wall corresponding to the groove 11, the sliding block 72 moves to the side of the bolt away from the door panel 2. At this time, the operator turns the bolt to make the bolt gradually protrude into the cavity 12. The bolt limits the sliding block 72, preventing the reset spring 66 and the limit spring 73 from restoring their deformation, thereby preventing the slider 511 and the sliding block 72 from moving and resetting, so that the telescopic plate 5 limits the matching plate 32 and the connecting block 31, and can fix the inflatable sealing ring 3, thereby reducing the occurrence of the inflatable sealing ring 3 detaching from the groove 11.

[0041] After closing the door panel 2, the operator controls the inflation of the inflatable sealing ring 3 so that the inflatable sealing ring 3 is pressed tightly against the groove 11 of the door frame 1 and the door panel 2, thereby sealing the gap between the door frame 1 and the door panel 2, and making the allowable matching error range of the contact surface between the door panel 2 and the door frame 1 wider, thereby reducing the processing requirements of the contact surface between the door frame 1 and the door, and reducing the processing cost of the carbon fiber box.

[0042] Due to the frequent use of the inflatable sealing ring 3, the inflatable sealing ring 3 is prone to wear. When the inflatable sealing ring 3 needs to be replaced, the operator rotates the screw 82 to move the screw 82 downward. When the end of the screw 82 located in the cavity 12 moves to a position lower than the cavity wall corresponding to the cavity 12, the reset spring 66 and the limit spring 73 restore their deformations. The reset spring 66 restores its deformation to push the telescopic plate 5 to move toward the door panel 2. The limit spring 73 restores its deformation to push the sliding block 72 to move away from the slider 511. At the same time, the connecting spring 52 restores its deformation and pulls the plug-in plate 53 to move into the groove of the sleeve plate 51, so that the distance between the two plug-in plates 53 gradually increases.

[0043] When the reset spring 66 and the limit spring 73 are restored to their initial states, the telescopic plate 5 is restored to its initial position, and the distance between the surfaces of the two plug-in plates 53 that are close to each other is greater than the distance between the surfaces of the two mating plates 32 that are away from each other. At this time, the operator pulls the inflatable sealing ring 3 out of the groove 11, and can easily take the inflatable sealing ring 3 out of the groove 11, thereby facilitating the operator to replace the inflatable sealing ring 3.

[0044] The implementation principle of a carbon fiber box sealing structure in an embodiment of the present application is as follows: an operator places the inflatable sealing ring 3 into the groove 11, and pushes the inflatable sealing ring 3 into the groove 11. The inflatable sealing ring 3 drives the rotating rope wheel 64 to rotate through the rack 61. The rotating rope wheel 64 rotates to wind and retract the pull rope 65. The pull rope 65 pulls the sliding block 72 to move, so that the hinged rod 71 rotates. The hinged rod 71 pushes the plug-in plate 53 to move outside the sleeve plate 51. When the hard plate 4 moves into place, the screw 82 is turned, and the screw 82 limits the sliding block 72.

[0045] When the door panel 2 is closed, the inflatable sealing ring 3 contacts the door panel 2 to seal the gap between the door panel 2 and the door frame 1; when the inflatable sealing ring 3 needs to be removed, the screw 82 is turned to release the limit on the sliding block 72, and the reset spring 66 and the limit spring 73 restore the deformation to move the telescopic plate 5 and the hard plate 4 to the initial position. When the telescopic plate 5 and the hard plate 4 return to the initial position, the operator pulls the inflatable sealing ring 3 out of the groove 11.

[0046] 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

1. A carbon fiber box sealing structure, applied to a carbon fiber box, the carbon fiber box comprising a door frame (1) and a door panel (2), characterized in that: The door frame (1) is provided with a groove (11) having a shape consistent with the cross-sectional shape of the door frame (1), and an inflatable sealing ring (3) is provided in the groove (11); The door frame (1) is provided with a cavity (12) at a position around the groove (11) in the length direction, and a connecting block (31) is fixedly connected to the upper surface and the lower surface of the sealing ring in the length direction, and the connecting block (31) passes through the side wall of the door frame (1) and is slidably inserted in the cavity (12); A highly retractable telescopic plate (5) is slidably connected in the cavity (12), and the telescopic plate (5) slides in the depth direction of the door frame (1). A control component (7) for controlling the telescopic movement of the telescopic plate (5) is also provided in the cavity (12). In an initial state, the distance between the surfaces of the two telescopic plates (5) that are close to each other is greater than the distance between the surfaces of the two connecting blocks (31) that are far away from each other. A driving assembly (6) for driving the telescopic plate (5) to slide is also provided in the cavity (12), and a locking assembly (8) for fixing the telescopic plate (5) is provided on the door frame (1).

2. A carbon fiber box sealing structure according to claim 1, characterized in that: The telescopic plate (5) comprises a sleeve plate (51) having a groove, the groove openings of the two sleeve plates (51) both face the side close to the inflatable seal ring (3), a plurality of connecting springs (52) are connected to the bottom wall of the groove of the sleeve plate (51), a plug-in plate (53) is slidably plugged into the groove of the sleeve plate (51), and the plug-in plate (53) is connected to the connecting spring (52).

3. A carbon fiber box sealing structure according to claim 2, characterized in that: A T-shaped sliding block (511) is fixedly connected to the outer bottom wall of the sleeve plate (51); a sliding groove (14) adapted to the sliding block (511) is provided on the cavity wall of the cavity (12) corresponding to the sliding block (511); the length direction of the sliding groove (14) is arranged along the depth direction of the door frame (1); and the sliding block (511) is slidably inserted into the sliding groove (14).

4. A carbon fiber box sealing structure according to claim 3, characterized in that: The driving assembly (6) comprises a rope reel mounted in the cavity (12), the rope reel being fixedly connected to a gear (63), the gear (63) being rotatably mounted in the cavity (12), a pull rope (65) being wound around the rope reel, the two ends of the pull rope (65) being respectively fixed to corresponding sliders (511), the inflatable sealing ring (3) being fixedly connected to a rack (61) meshing with the gear (63), the rack (61) penetrating the corresponding groove wall of the groove (11) and extending deep into the cavity (12); A side of the sliding block (511) close to the door frame (1) is connected to a return spring (66), and a side of the return spring (66) away from the sliding block (511) is connected and fixed to a cavity wall corresponding to the cavity (12).

5. The carbon fiber box sealing structure according to claim 4, characterized in that: The control assembly (7) comprises a sliding block (72) slidably inserted in the sliding groove (14), the sliding block (72) being located on a side of the slider (511) close to the outside of the door frame (1), the pull rope (65) passing through the slider (511) and being fixed to the sliding block (72), a limit spring (73) being provided between the slider (511) and the sliding block (72), the two ends of the connecting spring (52) being respectively fixed to the slider (511) and the sliding block (72), the sliding block (72) being hinged with a hinge rod (71), and the end of the hinge rod (71) away from the sliding block (72) being hinged to the plug-in plate (53).

6. The carbon fiber box sealing structure according to claim 4, characterized in that: A plurality of limiting rings for fixing the pull rope (65) are fixedly connected to the cavity wall of the cavity (12), and the plurality of limiting rings are distributed along the length direction of the pull rope (65).

7. The carbon fiber box sealing structure according to claim 1, characterized in that: A hard plate (4) is provided between the inflatable sealing ring (3) and the rack (61); the hard plate (4) is fixed to the inflatable sealing ring (3), and the rack (61) is fixed to the hard plate (4).

8. The carbon fiber box sealing structure according to claim 2, characterized in that: The locking assembly (8) comprises a screw rod (82) threadedly connected to a surface of the door frame (1) located inside the carbon fiber box, and a portion of the screw rod (82) is located inside the cavity (12).

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