A CFRP cable end protection device

Abstract

The present application relates to a kind of CFRP cable end protection device, to solve the technical problems of current CFRP cable end pasting carbon fiber cloth mode lower life and inconvenient replacement, including CFRP cable, several CFRP cable outside is covered with cable shell, cable shell end is equipped with protection mechanism, fixed mechanism is symmetrically arranged on protection mechanism, locking mechanism is arranged on fixed mechanism, and protection mechanism is connected on cable shell by fixed mechanism;The present application improves the structure of the existing CFRP cable end protection device, by the cable shell of the outer covering of CFRP cable, the protection mechanism of the end of cable shell is equipped, the fixed mechanism and locking mechanism are arranged on the protection mechanism, and the protection mechanism is locked with cable shell, the protection mechanism can prevent CFRP cable from breaking or damaging when subjected to external force, to improve the safety performance of the whole structure, especially in extreme weather conditions or natural disasters, protection mechanism can provide additional support and protection for CFRP cable.

Description

Technical Field

[0001] This invention relates to the field of CFRP cable technology, and more particularly to a CFRP cable end protection device. Background Technology

[0002] CFRP cables, or carbon fiber reinforced composite cables, are composite cables formed using carbon fiber or carbon fiber fabric as reinforcement and resin, ceramics, metals, cement, carbonaceous materials, or rubber as the matrix. They possess characteristics such as high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, and designability. Initially used primarily in aerospace, military products, and vehicle engineering, this material has since been widely applied in the manufacture of bridges, tunnels, and other structural components, significantly reducing the self-weight of buildings and lowering structural costs.

[0003] However, CFRP is a typical orthotropic material, with its strength and modulus perpendicular to the fiber direction being much lower than those perpendicular to the fiber direction, posing a challenge to the anchoring of CFRP cables. Therefore, its application in cable structures requires careful consideration of its unique mechanical properties and anchoring methods. Due to the special properties of CFRP cables, end protection is crucial for preventing early delamination and improving the overall structural durability. Firstly, the ends of CFRP cables are susceptible to environmental erosion and mechanical stress, which can lead to performance degradation or failure. Therefore, effective protective measures must be taken to extend their service life. A common end protection method is the use of U-shaped hoops. This method involves continuously applying a layer of carbon fiber cloth along the web surface and bottom surface of the beam on both sides within a certain longitudinal length of the reinforced member, pressing down the already bonded longitudinal CFRP cable at the bottom of the beam to achieve anchoring. This method is simple to use, convenient to construct, and effectively prevents CFRP cable delamination. However, U-shaped hoops have poor transverse shear resistance and offer limited protection; when the load reaches a certain level, delamination may still occur on the inner side of the U-shaped hoop. Therefore, designing a CFRP cable end protection device with high protective strength and resistance to peeling is particularly important. In view of this, we propose a CFRP cable end protection device. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art, adapt to practical needs, and provide a CFRP cable end protection device to solve the technical problems of the current method of attaching carbon fiber cloth to the end of CFRP cables, which has a short service life and is inconvenient to replace.

[0005] To achieve the objectives of this invention, the technical solution adopted is as follows: A CFRP cable end protection device is designed, comprising CFRP cables, a plurality of CFRP cables covered by a cable shell, a protective mechanism sleeved at the end of the cable shell, a fixing mechanism symmetrically provided on the protective mechanism, a locking mechanism provided on the fixing mechanism, and the protective mechanism connected to the cable shell through the fixing mechanism; the cable shell includes a housing, a cable cavity, and fixing insertion holes, the cable cavity being located inside the housing, the fixing insertion holes being symmetrically and evenly spaced in a ring at the end of the housing, a plurality of CFRP cables being located inside the housing relative to the cable cavity, and the protective mechanism being connected to the end of the housing through the fixing mechanism.

[0006] Preferably, the protective mechanism includes a protective shell, sliding holes, elongated holes, and fixing holes. The protective shell is connected to the end of the housing through the fixing mechanism. The sliding holes are symmetrically arranged in a ring at equal intervals at the end of the protective shell. A plurality of elongated holes are opened on the outer wall of the protective shell. The fixing holes are opened on the protective shell at positions opposite to the elongated holes on both sides.

[0007] Preferably, the locking mechanism includes a connecting rod, a rotating block, a connecting hole, and a locking bolt. One end of the connecting rod is connected to the fixing mechanism, and the other end of the connecting rod is movably connected to the elongated hole. The connecting hole is located at the end of the rotating block away from the connecting rod. The locking bolt passes through the connecting hole, and the inner end of the locking bolt is threaded to the fixing hole.

[0008] Preferably, the fixing mechanism includes a bearing component, a transmission component, and an insertion component. The bearing component is sleeved on the outer wall of the housing. The transmission component is connected to the bearing component. The insertion component is movably inserted through the bearing component at a position relative to the transmission component. The end of the connecting bent rod away from the elongated hole is connected to the transmission component. One end of the insertion component is movably inserted through the bearing component, and the other end of the insertion component is movably inserted through the fixed insertion hole.

[0009] Preferably, the bearing assembly includes a bearing inner ring, a bearing outer disc, a first sliding groove, and a second sliding groove. The bearing inner ring is sleeved on the outer wall of the housing. The first sliding groove is annularly and equally spaced at the bottom end of the bearing inner ring. The bearing outer disc is sleeved on the outer wall of the housing at a position relative to the bottom end of the bearing inner ring. The second sliding groove is annularly and equally spaced at the top end of the bearing outer disc. The transmission assembly is connected to the bearing outer disc. The insertion assembly is movably inserted through the first sliding groove and the second sliding groove.

[0010] Preferably, the transmission assembly includes a rotating ring, an inner toothed groove, an outer toothed groove, a shaft, and a gear. The rotating ring is rotatably connected to the top of the outer bearing disk. The inner toothed groove is formed on the inner wall of the rotating ring, and the outer toothed groove is formed on the outer wall of the rotating ring. A plurality of shafts are arranged in a ring at equal intervals on one side of the outer bearing disk opposite to the second slide groove. The gear is rotatably connected to the shaft and meshes with the inner toothed groove.

[0011] Preferably, the insertion assembly includes an insertion block, an insertion rod, and a rack. The insertion block is movably inserted into the second slide groove. One end of the insertion rod is connected to the insertion block, and the other end of the insertion rod is movably inserted into the fixed insertion hole. The rack is located at the top of the insertion block relative to the first slide groove, and the rack is meshed with the gear.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention improves the structure of existing CFRP cable end protection devices by covering the CFRP cable with a cable shell and fitting a protection mechanism at the end of the cable shell. The protection mechanism is equipped with a fixing mechanism and a locking mechanism to lock the protection mechanism to the cable shell. The protection mechanism can prevent the CFRP cable from breaking or being damaged when subjected to external forces, thereby improving the safety performance of the entire structure. Especially in extreme weather conditions or natural disasters, the protection mechanism can provide additional support and protection for the CFRP cable.

[0013] 2. This invention provides an insert block on the second slide groove, an insert rod connected to the inner end of the insert block, and a rack on the top of the insert block. The rack meshes with a gear. When the connecting rod drives the rotating ring to rotate, the inner tooth groove of the rotating ring drives the gear to rotate on the shaft, thereby moving and fixing the rack, insert block, and insert rod on the second slide groove. This reduces the frequency of frequent inspections and maintenance, making the maintenance of the overall structure more economical and efficient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a schematic diagram of the separated structure of the cable shell, protective mechanism, locking mechanism and fixing mechanism in this invention; Figure 4 This is a cross-sectional view of the internal structure of the protective mechanism in this invention. Figure 5 This is a cross-sectional structural schematic diagram of the CFRP cable, cable shell, and protective mechanism of the present invention; Figure 6This is a cross-sectional top view of the structure of the present invention; Figure 7 This is a schematic diagram of the cable shell, locking mechanism, and fixing mechanism in this invention; Figure 8 This is a schematic diagram showing the disassembled structure of the locking mechanism and fixing mechanism of the present invention; In the diagram: 1. CFRP cable; 2. Cable shell; 3. Protective mechanism; 4. Locking mechanism; 5. Fixing mechanism; 201. Shell; 202. Cable cavity; 203. Fixing insertion hole; 301. Protective casing; 302. Sliding hole; 303. Elongated hole; 304. Fixing hole; 401. Connecting bend; 402. Rotating block; 403. Connecting hole; 404. Locking bolt; 501. Load-bearing component; 502. Transmission component; 503. Insertion component; 5011, Inner bearing ring; 5012, Outer bearing disc; 5013, First slide groove; 5014, Second slide groove; 5021, Rotary ring; 5022, Internal tooth groove; 5023, External tooth groove; 5024, Shaft; 5025, Gear; 5031, Interlocking block; 5032, Interlocking rod; 5033, Rack. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example: A CFRP cable end protection device, see [link / reference] Figures 1 to 8 The system includes CFRP cables 1, several CFRP cables 1 covered by a cable shell 2, a protective mechanism 3 fitted at the end of the cable shell 2, a fixing mechanism 5 symmetrically provided on the protective mechanism 3, a locking mechanism 4 provided on the fixing mechanism 5, and the protective mechanism 3 connected to the cable shell 2 through the fixing mechanism 5; the cable shell 2 includes a housing 201, a cable cavity 202 and a fixing insertion hole 203, the cable cavity 202 is located inside the housing 201, the fixing insertion hole 203 is symmetrically opened at equal intervals in a ring at the end of the housing 201, several CFRP cables 1 are located inside the housing 201 at positions relative to the cable cavity 202, and the protective mechanism 3 is connected to the end of the housing 201 through the fixing mechanism 5. This invention improves the structure of existing CFRP cable end protection devices by covering the CFRP cable 1 with a cable shell 2 and fitting a protection mechanism 3 at the end of the cable shell 2. The protection mechanism 3 is secured to the cable shell 2 by a fixing mechanism 5 and a locking mechanism 4. The protection mechanism 3 can prevent the CFRP cable 1 from breaking or being damaged when subjected to external forces, thereby improving the safety performance of the entire structure. Especially in extreme weather conditions or natural disasters, the protection mechanism 3 can provide additional support and protection for the CFRP cable 1.

[0016] Specifically, the protection mechanism 3 includes a protective shell 301, a sliding hole 302, an elongated hole 303, and a fixing hole 304. The protective shell 301 is connected to the end of the housing 201 via a fixing mechanism 5. The sliding holes 302 are symmetrically arranged in a ring at equal intervals at the end of the protective shell 301. Several elongated holes 303 are formed on the outer wall of the protective shell 301. The fixing holes 304 are formed on the protective shell 301 on both sides opposite to the elongated holes 303. This invention connects the protective shell 301 to the end of the housing 201 via a fixing mechanism 5, and provides the sliding hole 302 and elongated hole 303 on the outer wall of the protective shell 301 for locking the housing 201 by the locking mechanism 4 and the fixing mechanism 5. This allows the protective shell 301 to be detachably connected to the end of the housing 201 to protect the CFRP cable 1. This significantly reduces the need for maintenance and replacement due to corrosion, wear, and other factors, thereby reducing long-term maintenance costs.

[0017] Furthermore, the locking mechanism 4 includes a connecting rod 401, a rotating block 402, a connecting hole 403, and a locking bolt 404. One end of the connecting rod 401 is connected to the fixing mechanism 5, and the other end of the connecting rod 401 is movably connected to the elongated hole 303. The connecting hole 403 is located at the end of the rotating block 402 away from the connecting rod 401. The locking bolt 404 passes through the connecting hole 403, and its inner end is threaded into the fixing hole 304. This invention, by providing a connecting rod 401 on the elongated hole 303, with the other end of the connecting rod 401 connected to the fixing mechanism 5, and using the rotating block 402 to drive the fixing mechanism 5 to rotate and form a locked or unlocked state, improves efficiency during later maintenance and repair without requiring complete disassembly, thus reducing replacement costs.

[0018] Furthermore, the fixing mechanism 5 includes a bearing component 501, a transmission component 502, and an insertion component 503. The bearing component 501 is sleeved on the outer wall of the housing 201. The transmission component 502 is connected to the bearing component 501. The insertion component 503 is movably inserted on the bearing component 501 at a position relative to the transmission component 502. The end of the connecting bent rod 401 away from the elongated hole 303 is connected to the transmission component 502. One end of the insertion component 503 is movably inserted on the bearing component 501, and the other end of the insertion component 503 is movably inserted on the fixed insertion hole 203. This invention achieves rapid assembly of the protection mechanism 3 and the cable shell 2 by sleeved bearing component 501 on the outer wall of shell 201, connecting transmission component 502 to bearing component 501, and movably inserting insertion component 503 on bearing component 501 relative to transmission component 502. This allows driving connecting rod 401 to drive transmission component 502 to rotate on bearing component 501, and transmission component 502 to drive insertion insertion component 503 to move and insert on bearing component 501. This improves the efficiency of initial assembly and facilitates subsequent maintenance, effectively enhancing the protection effect.

[0019] It is worth noting that the bearing assembly 501 includes a bearing inner ring 5011, a bearing outer disc 5012, a first sliding groove 5013, and a second sliding groove 5014. The bearing inner ring 5011 is sleeved on the outer wall of the housing 201. The first sliding groove 5013 is opened in a ring at equal intervals at the bottom end of the bearing inner ring 5011. The bearing outer disc 5012 is sleeved on the outer wall of the housing 201 at a position relative to the bottom end of the bearing inner ring 5011. The second sliding groove 5014 is opened in a ring at equal intervals at the top end of the bearing outer disc 5012. The transmission assembly 502 is connected to the bearing outer disc 5012. The insertion assembly 503 is movably inserted through the first sliding groove 5013 and the second sliding groove 5014. The present invention provides a bearing inner ring 5011 and a bearing outer plate 5012 fitted on the outer wall of the housing 201. A first sliding groove 5013 and a second sliding groove 5014 are respectively opened on the bearing inner ring 5011 and the bearing outer plate 5012. Their sizes are adapted to the insertion component 503, so that the insertion component 503 can slide in the first sliding groove 5013 and the second sliding groove 5014, which facilitates the installation and disassembly of the housing 201 and improves construction efficiency.

[0020] It is worth noting that the transmission assembly 502 includes a rotating ring 5021, an inner toothed groove 5022, an outer toothed groove 5023, a shaft 5024, and a gear 5025. The rotating ring 5021 is rotatably connected to the top of the outer bearing disk 5012. The inner toothed groove 5022 is formed on the inner wall of the rotating ring 5021, and the outer toothed groove 5023 is formed on the outer wall of the rotating ring 5021. Several shafts 5024 are arranged in a ring at equal intervals on one side of the outer bearing disk 5012 opposite to the second slide groove 5014. The gear 5025 is rotatably connected to the shaft 5024 and meshes with the inner toothed groove 5022. The present invention provides a rotating ring 5021 at the top of the outer bearing disk 5012, with an inner toothed groove 5022 at the inner end and an outer toothed groove 5023 at the outer end. A shaft 5024 and a gear 5025 are provided on the side of the outer bearing disk 5012 opposite to the second slide groove 5014. A connecting bent rod 401 is connected to the rotating ring 5021, which drives the rotating ring 5021 to rotate. The inner toothed groove 5022 of the rotating ring 5021 drives the gear 5025 to rotate on the shaft 5024, thereby causing the insertion assembly 503 to slide in the first slide groove 5013 and the second slide groove 5014, thus locking the housing 201 and improving the overall stability of the structure.

[0021] It is worth mentioning that the insertion assembly 503 includes an insertion block 5031, an insertion rod 5032, and a rack 5033. The insertion block 5031 is movably inserted into the second slide groove 5014. One end of the insertion rod 5032 is connected to the insertion block 5031, and the other end of the insertion rod 5032 is movably inserted into the fixed insertion hole 203. The rack 5033 is located at the top of the insertion block 5031 relative to the first slide groove 5013, and the rack 5033 is meshed with the gear 5025. This invention provides an insert block 5031 on the second slide groove 5014, an insert rod 5032 connected to the inner end of the insert block 5031, and a rack 5033 on the top of the insert block 5031. The rack 5033 meshes with the gear 5025. When the connecting bent rod 401 drives the rotating ring 5021 to rotate, the inner tooth groove 5022 of the rotating ring 5021 drives the gear 5025 to rotate on the shaft 5024, thereby moving and fixing the rack 5033, the insert block 5031, and the insert rod 5032 on the second slide groove 5014. This reduces the frequency of frequent inspections and maintenance, making the maintenance of the overall structure more economical and efficient.

[0022] Working principle: In use, the present invention first covers the outside of the CFRP cable 1 with a cable shell 2. A protective mechanism 3 is sleeved on the end of the cable shell 2. A fixing mechanism 5 and a locking mechanism 4 are set on the protective mechanism 3 to lock the protective mechanism 3 to the cable shell 2. The protective shell 301 is connected to the end of the shell 201 through the fixing mechanism 5. A sliding hole 302 is opened at the end of the protective shell 301. An elongated hole 303 is opened on the outer wall of the protective shell 301. A connecting bent rod 401 is set on the elongated hole 303. The other end of the connecting bent rod 401 is connected to a rotating ring 5021. When the connecting bent rod 401 drives the rotating ring 5021 to rotate, the inner tooth groove 5022 of the rotating ring 5021 drives the gear 5025 to rotate on the shaft 5024, thereby driving the rack 5033, the insert block 5031 and the insert rod 5032 to move and be fixed on the second sliding groove 5014.

[0023] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A CFRP cable end protection device, characterized in that, Includes CFRP cables (1), several of the CFRP cables (1) are covered with cable shells (2), the ends of the cable shells (2) are fitted with protective mechanisms (3), the protective mechanisms (3) are symmetrically provided with fixing mechanisms (5), the fixing mechanisms (5) are provided with locking mechanisms (4), and the protective mechanisms (3) are connected to the cable shells (2) through the fixing mechanisms (5); The cable shell (2) includes a shell (201), a cable cavity (202), and a fixing insertion hole (203). The cable cavity (202) is located inside the shell (201). The fixing insertion hole (203) is symmetrically and evenly spaced in a ring at the end of the shell (201). A plurality of CFRP cables (1) are located inside the shell (201) at positions relative to the cable cavity (202). The protection mechanism (3) is connected to the end of the shell (201) through the fixing mechanism (5). The protective mechanism (3) includes a protective shell (301), a sliding hole (302), an elongated hole (303), and a fixing hole (304). The protective shell (301) is connected to the end of the housing (201) through the fixing mechanism (5). The sliding hole (302) is symmetrically and evenly spaced in a ring at the end of the protective shell (301). Several elongated holes (303) are opened on the outer wall of the protective shell (301). The fixing hole (304) is opened on the protective shell (301) at positions opposite to the elongated holes (303). The locking mechanism (4) Includes a connecting rod (401), a rotating block (402), a connecting hole (403), and a locking bolt (404). One end of the connecting rod (401) is connected to the fixing mechanism (5), and the other end of the connecting rod (401) is movably connected to the elongated hole (303). The connecting hole (403) is opened at the end of the rotating block (402) away from the connecting rod (401). The locking bolt (404) passes through the connecting hole (403), and the inner end of the locking bolt (404) is threaded to the fixing hole (304). The fixing mechanism (5) includes a bearing component (501), a transmission component (502), and an insertion component (503). The bearing component (501) is sleeved on the outer wall of the housing (201). The transmission component (502) is connected to the bearing component (501). The insertion component (503) is movably inserted on the bearing component (501) at a position relative to the transmission component (502). The end of the connecting bent rod (401) away from the elongated hole (303) is connected to the transmission component (502). One end of the insertion component (503) is movably inserted on the bearing component (501), and the other end of the insertion component (503) is movably inserted on the fixed insertion hole (203).

2. The CFRP cable end protection device as described in claim 1, characterized in that, The bearing assembly (501) includes a bearing inner ring (5011), a bearing outer disc (5012), a first sliding groove (5013), and a second sliding groove (5014). The bearing inner ring (5011) is sleeved on the outer wall of the housing (201). The first sliding groove (5013) is opened at equal intervals in a ring at the bottom end of the bearing inner ring (5011). The bearing outer disc (5012) is sleeved on the outer wall of the housing (201) at a position relative to the bottom end of the bearing inner ring (5011). The second sliding groove (5014) is opened at equal intervals in a ring at the top end of the bearing outer disc (5012). The transmission assembly (502) is connected to the bearing outer disc (5012). The insertion assembly (503) is movably inserted through the first sliding groove (5013) and the second sliding groove (5014).

3. The CFRP cable end protection device as described in claim 2, characterized in that, The transmission assembly (502) includes a rotating ring (5021), an inner tooth groove (5022), an outer tooth groove (5023), a shaft (5024), and a gear (5025). The rotating ring (5021) is rotatably connected to the top of the bearing outer disk (5012). The inner tooth groove (5022) is formed on the inner wall of the rotating ring (5021), and the outer tooth groove (5023) is formed on the outer wall of the rotating ring (5021). A plurality of shafts (5024) are arranged in a ring at equal intervals on one side of the bearing outer disk (5012) opposite to the second slide groove (5014). The gear (5025) is rotatably connected to the shaft (5024) and meshes with the inner tooth groove (5022).

4. The CFRP cable end protection device as described in claim 3, characterized in that, The insertion assembly (503) includes an insertion block (5031), an insertion rod (5032), and a rack (5033). The insertion block (5031) is movably inserted into the second slide groove (5014). One end of the insertion rod (5032) is connected to the insertion block (5031), and the other end of the insertion rod (5032) is movably inserted into the fixed insertion hole (203). The rack (5033) is located at the top of the insertion block (5031) relative to the first slide groove (5013), and the rack (5033) is meshed with the gear (5025).

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