Prepreg cloth laying assembly for racing boat
By combining prepreg fabric layup components for racing boats, including carbon fiber prepreg-honeycomb-carbon fiber prepreg composite layup and aluminum alloy adjustable wheel frame slide, the problems of stress concentration and deformation are solved, achieving lightweighting and improved impact resistance of the racing boat, and enhancing the overall performance and stability of the racing boat.
Patent Information
- Application Number
- CN202422942687.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-01
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-01
AI Technical Summary
Existing prepreg processes for racing boats cannot effectively disperse stress when subjected to force, which can easily lead to stress concentration and deformation, poor impact resistance, and affect the stability and reliability of the racing boat.
The design incorporates a combination of components such as large-grid carbon fiber waterproof membrane, prepreg carbon fiber inner skin, prepreg carbon fiber reinforced outer skin, high-temperature resistant honeycomb, and boat seat. By optimizing the carbon fiber prepreg-honeycomb-carbon fiber prepreg composite layup, combined with aluminum alloy adjustable wheel frame carbon fiber slide seat and high-density rigid foam, stress dispersion and weight reduction are achieved.
Significantly reduces the weight of the racing boat, improves material utilization, enhances the bonding force between materials, optimizes the hull structure, reduces deformation, and improves the speed and impact resistance of the racing boat, making it more stable and reliable in competitions.
Smart Images

Figure CN223618885U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rowing technology, specifically to a prepreg fabric layup assembly for rowing. Background Technology
[0002] Rowing is a water sport in which one or more rowers sit in a boat facing away from the direction of travel and use their muscle power to propel the boat forward through the simple leverage of the oars and oarlocks. Prepreg is a form of composite material, typically made by pre-impregnating fibers and resins, and is used to manufacture high-performance components. Rowing has high requirements for the strength, weight, and durability of materials. Through reasonable prepreg layup design, the mechanical properties of composite materials can be optimized, enabling the rowing boat to achieve lightweight while maintaining strength, thereby improving the speed and performance of the rowing boat. Prepreg layup design can also improve the durability and fatigue resistance of the rowing boat and extend its service life.
[0003] Patent document CN209410293U discloses a new type of high-temperature prepreg process for racing boats. The patent document states that the prepreg process for racing boats cannot effectively disperse stress when subjected to force, and stress concentration can easily increase the possibility of boat deformation. The boat's impact resistance is poor, and its stable and reliable performance in the competition cannot be guaranteed. Utility Model Content
[0004] One object of this application is to provide a prepreg fabric layup assembly for racing boats that can solve the technical problems in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a prepreg fabric layup assembly for racing boats, comprising a large square carbon fiber waterproof sheet, a boat seat, and a high-strength, high-temperature resistant honeycomb. The high-strength, high-temperature resistant honeycomb is installed on the inner wall of the large square carbon fiber waterproof sheet, a prepreg carbon fiber inner skin is installed on the inner wall of the high-strength, high-temperature resistant honeycomb, a boat seat is installed on the inner side of the prepreg carbon fiber inner skin, and a prepreg carbon fiber tape reinforced outer skin is installed on the outer side of the large square carbon fiber waterproof sheet.
[0006] Preferably, the cabin includes a compartmentalized concave-shaped cockpit plate, high-density rigid foam, and K-carbon cloth, with the high-density rigid foam installed on top of the compartmentalized concave-shaped cockpit plate and the K-carbon cloth installed on top of the high-density rigid foam.
[0007] Preferably, the top of the boat seat is symmetrically equipped with a slide, the top of the slide has an adjustment groove, the inner side of the adjustment groove is movably equipped with a drive slider, and the top of the drive slider is equipped with an aluminum alloy adjustable wheel frame carbon fiber slide.
[0008] Preferably, a sliding wheel is installed at the bottom end of the driving slider, and the sliding wheel slides on the bottom wall of the adjusting groove.
[0009] Preferably, a limiting slot is provided on the outer side of the slide, and the limiting slot is connected to the adjusting slide. An extension screw is installed at the outer end of the driving slider, and the extension screw passes through the inner side of the limiting slot.
[0010] Preferably, an outer retaining plate is installed at the outer end of the extended screw, and an internally threaded abutment is connected to the outer side of the extended screw.
[0011] Preferably, a main clamp is installed at the outer end of the internal threaded abutment ring, and a hinge pin groove is opened at the outer end of the main clamp. A secondary clamp is installed on the inner side of the hinge pin groove through a rotating pin. A limit stud is installed through the outer side of the main clamp, and the limit stud cooperates with the secondary clamp.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This invention utilizes a pre-impregnated carbon fiber inner skin installed on the inner wall of a high-strength, high-temperature resistant honeycomb structure. The pre-impregnated carbon fiber inner skin and the pre-impregnated carbon fiber tape-reinforced outer skin significantly reduce the weight of the racing boat while maintaining strength. The application of thin-layer materials also improves material utilization, giving the racing boat a significant advantage in lightweight design. The high-strength, high-temperature resistant honeycomb structure further reduces weight while maintaining the boat's rigidity and strength. The optimized layup direction of the carbon fiber pre-impregnated fabric-honeycomb-carbon fiber pre-impregnated fabric combination reduces weight, allowing the racing boat to more effectively disperse stress under load, thereby improving the overall mass of the boat and reducing the deformation coefficient. The resin matrix in the pre-impregnated fabric enhances the bonding force between materials, further improving the overall performance of the racing boat. The optimized layup design of the hull structure makes it more in line with the principles of hydrodynamics, thereby reducing water resistance, increasing the boat's speed, and improving its impact resistance, making it more stable and reliable during races.
[0014] This invention significantly reduces the overall weight of the racing boat by installing a boat seat on the inner side of the pre-impregnated carbon fiber inner skin and using an adjustable aluminum alloy wheel frame carbon fiber slide, while ensuring sufficient strength and rigidity. The compartmentalized concave structure of the cabin provides a stable support surface for the slide, ensuring its stability and reliability after installation. The compartmentalized concave structure of the cabin allows the slide to better adapt to the athlete's body contours and posture after installation, reducing unnecessary friction and resistance, which helps improve the athlete's comfort and competition performance. The high-density rigid foam has excellent cushioning and shock absorption properties, which can further reduce the impact and vibration of the slide during exercise, protecting the overall structure of the slide and the racing boat. The excellent wear resistance and corrosion resistance of the high-density rigid foam can resist the erosion of water, moisture and other corrosive substances, allowing the compartmentalized concave structure of the cabin and the foam to maintain their good performance and stability for a long time after the slide is installed. Attached Figure Description
[0015] Figure 1This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the boat seat structure of this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the carriage of this utility model;
[0018] Figure 4 This is an enlarged structural diagram of point A in this utility model;
[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the main clamping hoop of this utility model.
[0020] In the diagram: 1. Large square carbon fiber waterproof membrane; 2. Boat seat; 3. Skid; 4. Pre-impregnated carbon fiber inner skin; 5. Pre-impregnated carbon fiber reinforced outer skin; 6. High-strength, high-temperature resistant honeycomb; 7. Compartmentalized concave structure cockpit flat panel; 8. High-density rigid foam; 9. 3K carbon fiber; 10. Adjustable slide; 11. Limiting slot; 12. Drive slider; 13. Sliding wheel; 14. Aluminum alloy adjustable wheel frame carbon fiber slide; 15. Extending screw; 16. Outer baffle; 17. Internal threaded retaining ring; 18. Main clamp; 19. Hinge pin groove; 20. Secondary clamp; 21. Limiting stud. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection or a movable connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] Please see Figure 1 One embodiment of this utility model is a prepreg fabric layup assembly for racing boats;
[0025] It includes a large square carbon cloth waterproof board 1, a pre-impregnated carbon cloth inner skin 4, and a high-strength high-temperature resistant honeycomb 6. The pre-impregnated carbon cloth inner skin 4 is installed on the bottom wall of the large square carbon cloth waterproof board 1. The boat seat 2 is installed on the inner side of the pre-impregnated carbon cloth inner skin 4. The pre-impregnated carbon cloth carbon tape reinforced outer skin 5 is installed on the outer side of the large square carbon cloth waterproof board 1. The high-strength high-temperature resistant honeycomb 6 is installed on the inner wall of the top of the large square carbon cloth waterproof board 1.
[0026] The prepreg inner skin 4 and the prepreg carbon fiber reinforced outer skin 5 can significantly reduce the weight of the racing boat while ensuring strength. The carbon fiber and other materials in the prepreg have the characteristics of high strength and high modulus. The high-strength and high-temperature resistant honeycomb 6 further reduces the weight while ensuring the stiffness and strength of the racing boat. The optimization of the layup direction of the carbon fiber prepreg-honeycomb-carbon fiber prepreg combination reduces the weight, which allows the racing boat to more effectively disperse stress when under load, thereby improving the overall quality of the racing boat and reducing the deformation coefficient. The resin matrix in the prepreg plays a role in enhancing the bonding force between materials, further improving the overall performance of the racing boat.
[0027] When combining carbon fiber prepreg-honeycomb-carbon fiber prepreg in a composite layer, the prepreg is first cut according to the mold size using a fabric cutting machine for each part. After the mold is preheated, the prepreg and honeycomb are placed into the mold and cured at a temperature of 130-145℃. High-temperature curing is a key step to ensure the dimensional stability of the racing boat hull and reduce the deformation coefficient. By precisely controlling the molding temperature and time, the resin matrix in the prepreg is fully cured to form a stable structure. At the same time, high-temperature curing can also eliminate residual stress inside the material, further improving the dimensional stability of the hull.
[0028] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A prepreg fabric layup assembly for racing boats;
[0029] The system includes a boat seat 2, a slide 3, and an aluminum alloy adjustable wheel frame carbon fiber slide 14. The boat seat 2 includes a compartmentalized concave structure cockpit plate 7, a high-density rigid foam 8, and a 3K carbon cloth 9. The high-density rigid foam 8 is installed on the top of the compartmentalized concave structure cockpit plate 7, and the 3K carbon cloth 9 is installed on the top of the high-density rigid foam 8. The slide 3 is symmetrically installed on the top of the boat seat 2. An adjustment groove 10 is opened on the top of the slide 3. A drive slider 12 is movably installed on the inner side of the adjustment groove 10. An aluminum alloy adjustable wheel frame carbon fiber slide 14 is installed on the top of the drive slider 12. A sliding wheel 13 is installed at the bottom end of the drive slider 12, and the sliding wheel 13 slides on the bottom wall of the adjustment groove 10.
[0030] The aluminum alloy adjustable wheel frame carbon fiber slide 14 significantly reduces the overall weight of the racing boat. The compartmentalized concave structure cockpit plate 7 provides a stable support surface for the slide, ensuring its stability and reliability after installation. The compartmentalized concave structure cockpit plate 7 allows the slide to better adapt to the athlete's body contours and posture after installation, reducing unnecessary friction and resistance. The high-density rigid foam 8 has excellent cushioning and shock absorption properties, further reducing the impact and vibration experienced by the slide during exercise and protecting the overall structure of the slide and the racing boat. The aluminum alloy adjustable wheel frame carbon fiber slide 14 allows athletes to fine-tune the position and angle of the slide according to their own needs and the competition environment. This adjustment function not only improves the athlete's comfort and flexibility but also optimizes the athlete's sitting posture and power generation, thereby improving paddling efficiency. The carbon fiber material has excellent rigidity and stability, maintaining stable structural strength during high-speed gliding and intense competition, enabling the aluminum alloy adjustable wheel frame carbon fiber slide 14 to withstand high-intensity use and impact for a long time after installation.
[0031] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A prepreg fabric layup assembly for racing boats;
[0032] The slide 3 includes a limiting slot 11, an extended screw 15, and an internal threaded abutment ring 17. The limiting slot 11 is provided on the outer side of the slide 3 and is connected to the adjusting slide 10. An extended screw 15 is installed on the outer end of the drive slider 12 and passes through the inner side of the limiting slot 11. An outer baffle 16 is installed on the outer end of the extended screw 15. An internal threaded abutment ring 17 is threaded on the outer side of the extended screw 15. A main clamp 18 is installed on the outer end of the internal threaded abutment ring 17. A hinge pin groove 19 is provided on the outer end of the main clamp 18. A secondary clamp 20 is installed on the inner side of the hinge pin groove 19 through a rotating pin. A limiting stud 21 is installed through the outer side of the main clamp 18 and cooperates with the secondary clamp 20.
[0033] When the drive slider 12 moves inside the adjusting groove 10, the sliding wheel 13 slides on the bottom wall of the adjusting groove 10. The drive slider 12 drives the aluminum alloy adjustable wheel frame carbon fiber slide block 14 for adjustment. The extended screw 15 passes through the inner side of the limiting slot 11 and moves synchronously with the drive slider 12. After the aluminum alloy adjustable wheel frame carbon fiber slide block 14 is adjusted to a suitable position, it rotates the internal threaded abutment ring 17. The internal threaded abutment ring 17 moves through the thread to a position close to the limiting slot 11 and is in contact with the slide block 3. Friction generated by the contact of the outer wall limits the extension screw 15, thereby preventing the drive slider 12 from sliding. The outer baffle 16 limits the movement of the internal threaded abutment ring 17, preventing it from falling off the extension screw 15. After the internal threaded abutment ring 17 rotates into place, the secondary clamp 20 rotates and cooperates with the main clamp 18 to further limit and clamp the outer end of the extension screw 15 after it is limited. Rotating the limiting stud 21 achieves stable limiting of the extension screw 15 by the main clamp 18 and the secondary clamp 20.
[0034] Working principle: When using this device, the slider 12 first drives the aluminum alloy adjustable wheel frame carbon fiber slide 14 for adjustment. The extended stud 15 passes through the inner side of the limiting slot 11 and moves synchronously with the slider 12. After the aluminum alloy adjustable wheel frame carbon fiber slide 14 is adjusted to a suitable position, the internal threaded abutment ring 17 is rotated to limit the extended screw 15. After the internal threaded abutment ring 17 is rotated into place, the limiting stud 21 is rotated to achieve the stable limiting of the extended screw 15 by the main clamp 18 and the secondary clamp 20. The optimized layup direction of carbon fiber prepreg-honeycomb-carbon fiber prepreg combination reduces weight, allowing the racing boat to more effectively disperse stress when under force. The compartmentalized concave structure cockpit plate 7 provides a stable support surface for the slide, allowing the slide to better adapt to the athlete's body contour and posture after installation, reducing unnecessary friction and resistance. The high-density rigid foam 8 has excellent cushioning and shock absorption performance, which can further reduce the impact and vibration of the slide during exercise.
[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A prepreg fabric layup assembly for racing boats, comprising a large-grid carbon fiber waterproof sheet (1), a boat seat (2), and a high-strength, high-temperature resistant honeycomb structure (6), characterized in that: The inner wall of the large square carbon cloth waterproof board (1) is equipped with a high-strength high-temperature resistant honeycomb (6), the inner wall of the high-strength high-temperature resistant honeycomb (6) is equipped with a pre-impregnated carbon cloth inner skin (4), the inner side of the pre-impregnated carbon cloth inner skin (4) is equipped with a boat seat (2), and the outer side of the large square carbon cloth waterproof board (1) is equipped with a pre-impregnated carbon cloth carbon tape reinforced outer skin (5).
2. The prepreg fabric layup assembly for racing boats according to claim 1, characterized in that: The boat seat (2) includes a compartmentalized concave structure cabin plate (7), high-density rigid foam (8) and 3K carbon cloth (9). The high-density rigid foam (8) is installed on top of the compartmentalized concave structure cabin plate (7), and the 3K carbon cloth (9) is installed on top of the high-density rigid foam (8).
3. The prepreg fabric layup assembly for racing boats according to claim 1, characterized in that: The top of the boat seat (2) is symmetrically equipped with a slide (3), and the top of the slide (3) is provided with an adjustment groove (10). The inner side of the adjustment groove (10) is movably equipped with a drive slider (12), and the top of the drive slider (12) is equipped with an aluminum alloy adjustable wheel frame carbon fiber slide (14).
4. A prepreg fabric layup assembly for racing boats according to claim 3, characterized in that: The bottom end of the drive slider (12) is equipped with a sliding wheel (13), and the sliding wheel (13) slides on the bottom wall of the adjustment groove (10).
5. A prepreg fabric layup assembly for racing boats according to claim 3, characterized in that: The slide (3) has a limiting slot (11) on its outer side, and the limiting slot (11) is connected to the adjusting slide (10). The outer end of the drive slider (12) is equipped with an extension screw (15), and the extension screw (15) passes through the inner side of the limiting slot (11).
6. A prepreg fabric layup assembly for racing boats according to claim 5, characterized in that: The outer end of the extended screw (15) is equipped with an outer retainer (16), and the outer side of the extended screw (15) is threaded with an inner threaded abutment ring (17).
7. A prepreg fabric layup assembly for racing boats according to claim 6, characterized in that: The outer end of the internal threaded abutment ring (17) is equipped with a main clamping ring (18), and the outer end of the main clamping ring (18) is provided with a hinge pin groove (19). The inner side of the hinge pin groove (19) is equipped with a secondary clamping ring (20) through a rotating pin. The outer side of the main clamping ring (18) is through-installed with a limiting stud (21), and the limiting stud (21) cooperates with the secondary clamping ring (20).
Citation Information
Patent Citations
Novel high-temperature prepreg craft racing boat
CN209410293U