Novel hatch cover fixing structure
By setting a combination structure of plastic latch and shaft steel nails in the hatch cover, combined with the fixing method of 3M tape and epoxy resin, the problems of offset and paint recess during fixing of the hatch cover in the prior art are solved, and a stable and beautiful fixing effect is achieved, and the safety performance of the aircraft is improved.
Patent Information
- Application Number
- CN202421513266.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In the prior art, holes need to be drilled on the top of the hatch when fixing the hatch, resulting in all the rivets and the sockets being exposed to the outside, which is prone to offset. When pulling the rivets to fix the rivets, it is easy to cause the paint surface of the hatch to sink in.
The combined structure of plastic latch and shaft steel nail is adopted. By setting jacks and latches in the hatch and fixing them with 3M tape and epoxy resin, the openings are avoided on the top of the hatch, and the position of the fixing frame and connecting rod is adjusted through bolts and gear mechanisms to enhance the structural stability.
The stable fixation between the hatch cover and the aircraft is achieved, without opening holes on the top of the hatch cover, avoiding the recess of the paint surface, improving the stability and adaptability of the structure, and ensuring the safety performance of the aircraft.
Smart Images
Figure CN222960045U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hatch covers, and specifically relates to a novel hatch cover fixing structure. Background Art
[0002] The hatch cover is a key part of an aircraft, and its main function is to protect the equipment inside the aircraft, such as engines, batteries, control systems, etc., from damage caused by the external environment.
[0003] In the prior art, since one side of the hatch cover needs to be fixed to a specific part of the aircraft, holes need to be drilled in the top of the hatch cover, and then rivets are inserted into the jacks. However, in this way, the rivets and the jacks are all exposed outside the hatch cover. First, because the hatch cover has a curvature, it is easy to deviate during fixation. And when pulling the rivet to fix the pin, if the force is too large, the rivet is likely to cause the paint surface of the hatch cover to sink in. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a novel hatch cover fixing structure to solve the problems raised in the above background art.
[0005] To solve the above technical problems, a novel hatch cover fixing structure provided by the utility model includes a hatch cover. A connection component is arranged inside the hatch cover. The connection component includes a plastic pin arranged inside the hatch cover. An axial center steel nail is inserted into the plastic pin. A jack is opened on one side of the hatch cover, and the axial center steel nail is inserted into the jack.
[0006] Further, two bolts are threadedly connected to the plastic pin. Two fixing frames are installed on the outer wall of the bolts. A connecting rod is inserted into the fixing frame. An arc-shaped fixing block is installed between one ends of the two connecting rods. A gear is installed on the outer wall of the bolt. A rack meshingly connected with the gear is installed at one end of the connecting rod.
[0007] Further, the outer wall of the fixing frame abuts against the outer wall of the plastic pin. The outer wall of the gear abuts against the inner wall of the fixing frame. One side of the arc-shaped fixing block is integrally formed into an arc, and the arc-shaped side of the arc-shaped fixing block is adapted to the arc of the inner wall of the hatch cover.
[0008] Further, two springs are installed on the outer wall of the fixing frame. A fixing plate is arranged on one side of the fixing frame. One end of the spring is connected to the fixing plate. A clamping plate is installed on the outer wall of the fixing plate, and one side of the clamping plate is located between the gear and the rack.
[0009] Further, a sliding rod is installed on the outer wall of the fixing plate. The sliding rod is inserted into the fixing frame, and the sliding rod is located inside the spring.
[0010] Further, the fixing frame is provided with a square through groove, and both the clamping plate and the rack are located inside the square through groove. A groove is provided at the top of the fixing plate.
[0011] Further, the fixing frame is provided with a chamber, an installation rod is installed on the inner wall of the chamber, installation blocks are installed on the outer walls of the connecting rod and the rack, a sliding block is installed at the bottom of the installation block, and the sliding block is located inside the chamber and is slidably connected to the outer wall of the installation rod.
[0012] Further, a knob is installed at one end of the bolt away from the plastic plug, and the knob is located outside the fixing frame.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. In the present utility model, holes are drilled in the hatch cover and the aircraft through the template to ensure that the sizes of the jack holes and the axial center steel nails match. After pasting 3M tape on the top of the plastic plug, it is adhered to the inner top wall of the hatch cover. After aligning the axial center steel nail with the jack hole, epoxy resin is used to fix the connection between the plastic plug and the hatch cover. The axial center steel nail is inserted into the jack hole and the aircraft hole, realizing the fixation of the hatch cover and the aircraft. There is no need to drill holes in the top of the hatch cover, which is both beautiful and avoids paint surface depressions.
[0015] 2. In the present utility model, by rotating the bolt counterclockwise, the positions of the fixing frame, the connecting rod, and the arc-shaped fixing block can be adjusted, so that the arc-shaped fixing block tightly abuts against the inner wall of the hatch cover, thereby stably supporting the plastic plug. After the adjustment is completed, the bolt is fixed by the nut to ensure the stability of the structure, improve the adaptability of the plastic plug in harsh environments, and ensure the safety performance of the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is the external structure schematic diagram of the present utility model;
[0017] Figure 2 is the connection structure schematic diagram of the fixing frame and the connecting rod in the present utility model;
[0018] Figure 3 is the connection structure schematic diagram of the gear and the rack in the present utility model;
[0019] Figure 4 is Figure 1 the enlarged structure diagram at A in
[0020] Figure 5 is Figure 2 the enlarged structure diagram at B in
[0021] Figure 6 is Figure 2 the enlarged structure diagram at C in
[0022] In the figure: 1. Hatch cover;
[0023] 2. Connecting component; 201. Plastic plug; 202. Axial steel nail; 203. Socket hole
[0024] 3. Bolt; 4. Fixed frame; 5. Connecting rod; 6. Arc-shaped fixing block; 7. Gear; 8. Rack; 9. Square through slot; 10. Spring; 11. Slide bar; 12. Clamping plate; 13. Fixed plate; 14. Groove; 15. Chamber; 16. Slide block; 17. Mounting block; 18. Mounting rod; 19. Knob Specific implementation manner
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention
[0026] Please refer to Figures 1-6 , the present invention provides a technical solution
[0027] Refer to Figures 1-4 As shown in the figure, a new hatch fixing structure includes a hatch 1. A connecting component 2 is arranged inside the hatch 1. The connecting component 2 includes a plastic plug 201 arranged inside the hatch 1. An axial steel nail 202 is inserted into the plastic plug 201. A socket hole 203 is opened on one side of the hatch 1. The axial steel nail 202 is inserted into the socket hole 203. A 3M tape is pasted on the top of the plastic plug 201. The plastic plug 201 is adhered to the inner top wall of the hatch 1 through the 3M tape. Epoxy resin is bonded at the connection between the plastic plug 201 and the hatch 1
[0028] By using a template to drill the socket hole 203 on the hatch 1, and then drilling holes on the aircraft in the same way. The sizes of the socket hole 203 and the axial steel nail 202 are matched. First, paste the 3M tape on the top of the plastic plug 201, and then stick it to the inner top wall of the hatch 1 through the 3M tape. After aligning the axial steel nail 202 with the socket hole 203, apply epoxy resin at the connection between the plastic plug 201 and the hatch 1 to complete the fixation of the plastic plug 201. The axial steel nail 202 is inserted into the socket hole 203 and the holes drilled on the aircraft. The hatch 1 and the aircraft are fixed together through the plastic plug 201 and the axial steel nail 202. There is no need to drill holes on the top of the hatch 1, which not only increases the aesthetics but also avoids the paint surface depression on the top of the hatch 1
[0029] Refer to Figures 2-6, the plastic bolt 201 is threadedly connected with two bolts 3. Two fixing frames 4 are fixedly installed on the outer wall of the bolt 3. A connecting rod 5 is inserted into the fixing frame 4. An arc-shaped fixing block 6 is fixedly installed between the ends of the two connecting rods 5 away from the fixing frame 4. The arc-shaped fixing block 6 abuts against the inner wall of the hatch cover 1. A gear 7 is fixedly installed on the outer wall of the bolt 3. The gear 7 is located inside the fixing frame 4. A rack 8 meshed with the gear 7 is fixedly installed at one end of the connecting rod 5 located inside the fixing frame 4. The bottom of the rack 8 abuts against the inner bottom wall of the fixing frame 4.
[0030] The adaptability of the plastic bolt 201 to connect the hatch cover 1 through tape and epoxy resin is poor. In harsh environments such as high temperature, high humidity or strong vibration, the connection may fail, thus affecting the safety performance of the aircraft. Therefore, it needs to be improved.
[0031] First, when the bolt 3 is rotated counterclockwise, it can drive the fixing frame 4, the connecting rod 5 and the arc-shaped fixing block 6 to swing upward. At the same time, the bolt 3 drives the gear 7 to rotate counterclockwise. When the gear 7 rotates counterclockwise, it drives the rack 8 to slide to the left and drives the connecting rod 5 to slide out of the fixing frame 4. After the connecting rod 5 slides out of the fixing frame 4, the overall length between the fixing frame 4 and the connecting rod 5 is increased, and the arc-shaped fixing block 6 abuts against the inner wall of the hatch cover 1, making the arc-shaped fixing block 6 tightly abut against the inner wall of the hatch cover 1.
[0032] The fixing frame 4, the connecting rod 5 and the arc-shaped fixing block 6 cooperate to support the plastic bolt 201 inside the hatch cover 1, making the plastic bolt 201 more stable. When the bolt 3 is screwed to the appropriate position, a nut can be screwed onto the bolt 3 to make the connection between the bolt 3, the fixing frame 4 and the plastic bolt 201 tighter. At the same time, the nut makes the bolt 3 stable and not prone to rotation.
[0033] Refer to Figures 2-6 , the outer wall of the fixing frame 4 abuts against the outer wall of the plastic bolt 201, the outer wall of the gear 7 abuts against the inner wall of the fixing frame 4. One side of the arc-shaped fixing block 6 is integrally formed into an arc, and the arc-shaped side of the arc-shaped fixing block 6 is adapted to the arc of the inner wall of the hatch cover 1.
[0034] The outer wall of the fixing frame 4 abuts against the outer wall of the plastic bolt 201, so that when the fixing frame 4 swings following the bolt 3, it can slide along the outer wall of the plastic bolt 201. One side of the arc-shaped fixing block 6 is set as an arc to facilitate fitting with the inner wall of the hatch cover 1, thus more conveniently supporting inside the hatch cover 1.
[0035] Refer to Figure 3 , two springs 10 are fixedly installed on the outer wall of the fixing frame 4. A fixing plate 13 is arranged on one side of the fixing frame 4. The ends of the springs 10 away from the fixing frame 4 are fixedly connected to the outer wall of the fixing plate 13. A clamping plate 12 is fixedly installed on the outer wall of the fixing plate 13. One side of the clamping plate 12 is located between the gear 7 and the rack 8.
[0036] After adjusting the overall length of the fixed frame 4 and the connecting rod 5, in order to prevent the connecting rod 5 from sliding back into the fixed frame 4, first pull the fixed plate 13 to move the clamping plate 12 away from between the gear 7 and the rack 8 before moving the rack 8. Then, after the position of the rack 8 is moved, release the fixed plate 13, and the spring 10 will bounce back to its original position and pull the clamping plate 12 back between the gear 7 and the rack 8, causing the clamping plate 12 to be stuck between the gear 7 and the rack 8. At this time, the gear 7 and the rack 8 can no longer move. And with the cooperation of the nut to fix the bolt 3, the gear 7 is even less likely to rotate, making the positions of the rack 8 and the connecting rod 5 more stable.
[0037] Refer to Figure 3 , a slide bar 11 is fixedly installed on the outer wall of the fixed plate 13. The slide bar 11 is inserted into the fixed frame 4, and the slide bar 11 is located inside the spring 10.
[0038] When the fixed plate 13 pulls the spring 10, the slide bar 11 will slide along the fixed frame 4. And when the fixed plate 13 is released, the slide bar 11 will still slide along the fixed frame 4. The insertion of the slide bar 11 into the fixed frame 4 makes the clamping plate 12 and the fixed plate 13 can only move along the inclined direction of the fixed frame 4, avoiding tilting.
[0039] Refer to Figure 3 , the fixed frame 4 is provided with a square through groove 9. The clamping plate 12 and the rack 8 are both located inside the square through groove 9. A groove 14 is opened at the top of the fixed plate 13.
[0040] The square through groove 9 provides space for the movement of the clamping plate 12 and also provides space for the sliding of the rack 8, enabling the rack 8 to have enough space to move, facilitating the retraction or extension of the connecting rod 5. The groove 14 makes the fixed plate 13 easier to be manipulated. The user can easily pull the fixed plate 13 by buckling the finger into the groove 14.
[0041] Refer to Figures 2-6 , the fixed frame 4 is provided with a chamber 15. An installation rod 18 is fixedly installed on the inner wall of the chamber 15. Installation blocks 17 are fixedly installed on the outer walls of the connecting rod 5 and the rack 8. A slider 16 is fixedly installed at the bottom of the installation block 17. The slider 16 is located inside the chamber 15 and is slidably connected to the outer wall of the installation rod 18.
[0042] The chamber 15 provides space for the sliding of the slider 16. When the connecting rod 5 and the rack 8 move, they slide along the outer wall of the chamber 15 through the slider 16 and the installation block 17, making the movement of the connecting rod 5 and the rack 8 more stable. The installation rod 18 provides support and guidance for the connecting rod 5 and the rack 8, and also prevents the connecting rod 5 and the rack 8 from shifting during sliding.
[0043] Refer to Figure 6, a knob 19 is fixedly installed at one end of the bolt 3 away from the plastic plug 201, and the knob 19 is located outside the fixed frame 4.
[0044] The user can hold the knob 19 by hand to turn the bolt 3, and the bolt 3 can be driven to rotate without tools.
[0045] Working principle:
[0046] The jacking holes 203 are drilled in the hatch cover 1 through a template, and then the same method is used to drill holes on the aircraft. The sizes of the jacking holes 203 and the axial steel nails 202 are matched. First, 3M tape is pasted on the top of the plastic plug 201, and then the plastic plug 201 is adhered to the inner top wall of the hatch cover 1 through the 3M tape. After aligning the axial steel nail 202 with the jacking hole 203, epoxy resin is applied at the connection between the plastic plug 201 and the hatch cover 1 to complete the fixation of the plastic plug 201. The axial steel nail 202 is inserted into the jacking holes 203 and the holes drilled on the aircraft, and the hatch cover 1 and the aircraft are fixed together through the plastic plug 201 and the axial steel nail 202. There is no need to drill holes on the top of the hatch cover 1, which not only increases the aesthetics but also avoids the paint surface depression on the top of the hatch cover 1.
[0047] The adaptability of the plastic plug 201 to connect the hatch cover 1 through tape and epoxy resin is poor. In harsh environments such as high temperature, high humidity or strong vibration, the connection may fail, thus affecting the safety performance of the aircraft. Therefore, it needs to be improved;
[0048] First, when the bolt 3 is rotated counterclockwise, it can drive the fixed frame 4, the connecting rod 5 and the arc-shaped fixing block 6 to swing upward. At the same time, the bolt 3 drives the gear 7 to rotate counterclockwise. When the gear 7 rotates counterclockwise, it drives the rack 8 to slide to the left and drives the connecting rod 5 to slide outside the fixed frame 4. After the connecting rod 5 slides out of the fixed frame 4, the overall length between the fixed frame 4 and the connecting rod 5 is increased, and the arc-shaped fixing block 6 abuts against the inner wall of the hatch cover 1, so that the arc-shaped fixing block 6 tightly abuts against the inner wall of the hatch cover 1;
[0049] The fixed frame 4, the connecting rod 5 and the arc-shaped fixing block 6 cooperate to support the plastic plug 201 inside the hatch cover 1, making the plastic plug 201 more stable. When the bolt 3 is screwed to the appropriate position, a nut can be screwed on the bolt 3 to make the connection between the bolt 3, the fixed frame 4 and the plastic plug 201 tighter. At the same time, the nut makes the bolt 3 stable and will not rotate easily.
Claims
1. A novel hatch cover fixing structure, comprising a hatch cover (1), characterized in that: A connection assembly (2) is arranged inside the hatch cover (1), and the connection assembly (2) comprises a plastic plug (201) arranged inside the hatch cover (1), an axial steel nail (202) is plugged into the plastic plug (201), and a plug hole (203) is opened on one side of the hatch cover (1), and the axial steel nail (202) is plugged into the plug hole (203).
2. A novel hatch cover fixing structure as claimed in claim 1, characterized in that: The plastic latch (201) is threadedly connected to two bolts (3), the outer wall of the bolt (3) is installed with two fixing frames (4), the fixing frames (4) are plugged with connecting rods (5), an arc-shaped fixing block (6) is installed between one end of the two connecting rods (5), a gear (7) is installed on the outer wall of the bolt (3), and one end of the connecting rod (5) is installed with a rack (8) meshing with the gear (7).
3. A novel hatch cover fixing structure as claimed in claim 2, characterized in that: The outer wall of the fixing frame (4) abuts against the outer wall of the plastic latch (201), the outer wall of the gear (7) abuts against the inner wall of the fixing frame (4), one side of the arc-shaped fixing block (6) is integrally formed into an arc shape, and the arc-shaped side of the arc-shaped fixing block (6) is adapted to the arc shape of the inner wall of the hatch cover (1).
4. A novel hatch cover fixing structure as claimed in claim 3, characterized in that: Two springs (10) are installed on the outer wall of the fixed frame (4); a fixed plate (13) is provided on one side of the fixed frame (4); one end of the spring (10) is connected to the fixed plate (13); a clamping plate (12) is installed on the outer wall of the fixed plate (13); one side of the clamping plate (12) is located between the gear (7) and the rack (8).
5. A novel hatch cover fixing structure as claimed in claim 4, characterized in that: A sliding rod (11) is installed on the outer wall of the fixing plate (13), the sliding rod (11) is plugged into the fixing frame (4), and the sliding rod (11) is located inside the spring (10).
6. A novel hatch cover fixing structure as claimed in claim 5, characterized in that: The fixing frame (4) is provided with a square through slot (9), the clamping plate (12) and the rack (8) are both located inside the square through slot (9), and the top of the fixing plate (13) is provided with a groove (14).
7. A novel hatch cover fixing structure as claimed in claim 6, characterized in that: The fixing frame (4) is provided with a chamber (15), the inner wall of the chamber (15) is provided with a mounting rod (18), the outer walls of the connecting rod (5) and the rack (8) are provided with mounting blocks (17), the bottom of the mounting block (17) is provided with a sliding block (16), the sliding block (16) is located inside the chamber (15) and is slidably connected to the outer wall of the mounting rod (18).
8. A novel hatch cover fixing structure as claimed in claim 7, characterized in that: A knob (19) is installed at one end of the bolt (3) away from the plastic latch (201), and the knob (19) is located outside the fixing frame (4).