Compression-resistant and bending-resistant carbon fiber tube

Abstract

The utility model discloses an anti-compression and anti-bending carbon fiber tube which comprises a tube body, an anti-compression and anti-bending mechanism is arranged on the outer side of the tube body, the anti-compression and anti-bending mechanism comprises a plurality of anti-bending strips and a plurality of anti-compression semi-rings, a plurality of clamping grooves are formed in the sides, away from the tube body, of the anti-bending strips, a plurality of clamping openings are formed in the inner side walls of the anti-compression semi-rings, and the clamping grooves are communicated with the clamping openings. And the bayonet is matched with the clamping groove. According to the compression-resistant and bending-resistant carbon fiber tube, the bending-resistant and compression-resistant mechanism is arranged, the compression-resistant semi-rings and the bending-resistant strips are spliced on the outer side of the tube body, in this way, a support can be formed outside the tube body, all-around protection is formed on the tube body, and the bending-resistant and compression-resistant mechanism is spliced instead of being whole, can be disassembled for transportation and is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber tube technology, specifically to a pressure- and bending-resistant carbon fiber tube. Background Technology

[0002] Carbon fiber tubes, also known as carbon fiber tubes or carbon tubes, are made by pre-impregnating carbon fiber composite materials with styrene-based polyester resin and then pultruding (winding) them through heating and curing.

[0003] A search revealed an existing patent (publication number: CN207034426U) that discloses a bending-resistant carbon fiber tube, comprising an inner wall tube, an outer wall tube, and a reinforcing tube fixedly disposed between the inner wall tube and the outer wall tube. The number of reinforcing tubes is n, where n ≥ 4. The n reinforcing tubes are sequentially arranged along one end of the inner wall tube to the other end, with the spacing between adjacent reinforcing tubes forming an arithmetic sequence. The tolerance of this arithmetic sequence is 0.1 to 1 times the minimum spacing between adjacent reinforcing tubes. The inner wall tube, outer wall tube, and reinforcing tubes are all made of carbon fiber. This invention is lightweight and has high bending strength, making it suitable for use in the rotor arms of multi-rotor UAVs. Compared to existing carbon fiber tubes with the same outer diameter and bending deformation, it reduces weight by at least 30%. Compared to existing carbon fiber tubes with the same material and structure but the same outer diameter and weight, it effectively reduces bending deformation by 20%.

[0004] It reinforces the carbon fiber tube with reinforcing tubes, but it has shortcomings. The reinforcing tubes only provide intermittent protection, and the gap between the two reinforcing tubes has no reinforcing effect. Thus, the gap between the two reinforcing tubes is still prone to bending. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a pressure- and bending-resistant carbon fiber tube, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a pressure-resistant and bending-resistant carbon fiber tube, comprising a tube body, wherein a pressure-resistant and bending-resistant mechanism is provided on the outer side of the tube body, the pressure-resistant and bending-resistant mechanism comprising multiple bending strips and multiple pressure-resistant semi-rings, wherein multiple slots are provided on the side of the bending strips away from the tube body, and multiple slots are provided on the inner sidewall of the pressure-resistant semi-rings, wherein the slots and slots are adapted to each other.

[0007] Preferably, the outer wall of the pipe body is provided with multiple limiting grooves and multiple annular grooves, the bending strip is located inside the limiting grooves, and the compression-resistant semi-ring is located inside the annular grooves.

[0008] Preferably, the outer wall of the compression and bending resistance mechanism is provided with two protective shells, and the two protective shells are fixedly connected by multiple bolts and nuts.

[0009] Preferably, the bottom of the protective shell described below is fixed with multiple hexagonal cylinders.

[0010] Preferably, a hexagonal magnetic ring is fixed inside the hexagonal cylinder.

[0011] Preferably, the inner wall of the protective shell is in contact with the bending strip and the compression-resistant semi-ring. Beneficial effects

[0012] This invention provides a compression- and bending-resistant carbon fiber tube. Compared with the prior art, it has the following advantages:

[0013] 1. This compression and bending resistant carbon fiber tube, by setting up a bending and compression resistant mechanism, splices multiple compression resistant semi-rings and bending resistant strips on the outside of the tube body. This can form support on the outside of the tube body, providing all-round protection for the tube body. Moreover, this bending and compression resistant mechanism is spliced, not a whole piece, so it can be disassembled for transportation, which is simple and convenient.

[0014] 2. This compression- and bending-resistant carbon fiber tube, by setting a hexagonal cylinder and a hexagonal magnetic ring, allows the hexagonal head of the bolt to be inserted into the interior of the hexagonal cylinder, and the hexagonal magnetic ring to attract the bolt and prevent the bolt from falling down, thus facilitating the rotation of the nut. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the protective shell in this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the tube body in this utility model.

[0018] Figure 4 This is a schematic diagram of the bending-resistant strip in this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the medium-pressure semi-ring of this utility model.

[0020] Figure 6 This is a bottom view of the protective shell in this utility model.

[0021] In the diagram: 1. Compression and bending resistance mechanism; 101. Bending resistance strip; 102. Compression resistance semi-ring; 103. Limiting groove; 104. Annular groove; 105. Slot; 106. Bayonet; 2. Pipe body; 3. Protective shell; 4. Bolt and nut; 5. Hexagonal cylinder; 6. Hexagonal magnetic ring. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-6 This utility model provides a technical solution: a pressure-resistant and bending-resistant carbon fiber tube, including a tube body 2. A pressure-resistant and bending-resistant mechanism 1 is provided on the outer side of the tube body 2. The pressure-resistant and bending-resistant mechanism 1 includes multiple bending strips 101 and multiple pressure-resistant semi-rings 102. Multiple slots 105 are opened on the side of the bending strips 101 away from the tube body 2. Multiple slots 106 are opened on the inner side wall of the pressure-resistant semi-rings 102. The slots 106 and slots 105 are compatible. This bending and pressure-resistant mechanism is spliced, not a whole, and can be disassembled for easy and convenient transportation. Multiple limiting grooves 103 and multiple annular grooves 104 are opened on the outer side wall of the tube body 2. The bending strips 101 are located inside the limiting grooves 103, and the pressure-resistant semi-rings 102 are located inside the annular grooves 104. This can limit the position of the bending strips 101 and the pressure-resistant semi-rings 102.

[0024] Furthermore, the outer wall of the anti-compression and anti-bending mechanism 1 is provided with two protective shells 3, which are fixedly connected by multiple bolts and nuts 4 to protect the pipe body 2. Multiple hexagonal cylinders 5 are fixed at the bottom of the lower protective shell 3 to restrict the bolts and prevent them from rotating when the nuts are turned. Hexagonal magnetic rings 6 are fixed inside the hexagonal cylinders 5 to attract the bolts. The inner wall of the protective shell 3, the anti-bending strip 101, and the anti-compression half-ring 102 are in contact, which can press the anti-compression half-ring 102 and make it contact the pipe body 2.

[0025] During operation, multiple anti-bending strips 101 are inserted into the limiting groove 103. Then, the anti-compression half-ring 102 and the anti-bending strips 101 are spliced ​​together. The anti-compression half-ring 102 is inserted into the annular groove 104. Then, the two protective shells 3 are spliced ​​together. Bolts are inserted into the hexagonal cylinder 5, and the hexagonal head of the bolt is inserted into the interior of the hexagonal cylinder 5. The hexagonal magnetic ring 6 attracts the bolt to prevent it from falling down, which facilitates the rotation of the nut and connects the two protective shells 3.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon fibre pipe resistant to compression and bending, comprising a pipe body (2), characterised in that: The outer side of the pipe body (2) is provided with a compression and bending resisting mechanism (1), the compression and bending resisting mechanism (1) comprises a plurality of bending resisting strips (101) and a plurality of compression resisting half rings (102), a plurality of clamping grooves (105) are formed on the side of the bending resisting strip (101) away from the pipe body (2), a plurality of clamping openings (106) are formed on the inner side wall of the compression resisting half ring (102), and the clamping opening (106) is matched with the clamping groove (105).

2. A crush and bend resistant carbon fiber tube according to claim 1, wherein: The outer side wall of the pipe body (2) is provided with a plurality of limiting grooves (103), the outer side wall of the pipe body (2) is provided with a plurality of annular grooves (104), the bending resisting strip (101) is located in the limiting groove (103), and the compression resisting half ring (102) is located in the annular groove (104).

3. A crush and bend resistant carbon fibre tube according to claim 2, characterised in that: The outer side wall of the compression and bending resisting mechanism (1) is provided with two protective shells (3), and the two protective shells (3) are fixedly connected through a plurality of bolt nuts (4).

4. A crush and bend resistant carbon fibre tube according to claim 3, wherein: The bottom of the lower protective shell (3) is fixedly provided with a plurality of hexagonal cylinders (5).

5. A crush and bend resistant carbon fibre tube according to claim 4, wherein: The inner side of the hexagonal cylinder (5) is fixedly provided with a hexagonal magnetic ring (6).

6. A crush and bend resistant carbon fibre tube according to claim 5, wherein: The inner side wall of the protective shell (3) is in contact with the bending resisting strip (101) and the compression resisting half ring (102).

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