Carbon fiber sheet prestress tensioning device
By designing the limiting insert and connecting frame, combined with the spiral spring and jack, the quick replacement of the clamping silicon block in the carbon fiber sheet prestressing tensioning device was realized, solving the problem of inconvenient replacement caused by damage to the clamping plate, and improving the efficiency and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU XINBU TECHNOLOGY CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-24
AI Technical Summary
In existing carbon fiber sheet prestressing tensioning devices, the clamping plates are easily damaged when holding the carbon fiber sheets, resulting in inconvenient and time-consuming replacement.
The design incorporates a second limiting plug, a connecting frame, a connecting shell, and a clamping silicon block. The second limiting plug is inserted into the connection between the first limiting plug and the connecting shell, facilitating the disassembly and replacement of the second limiting plug and the clamping silicon block. Combined with the use of a helical spring and a jack, the clamping silicon block can be quickly replaced.
It improves the lifespan of the clamped silicon block, simplifies the replacement process, protects the safety of the clamped silicon block, and reduces replacement time.
Smart Images

Figure CN224549655U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon fiber sheet technology, specifically to a prestressing tensioning device for carbon fiber sheets. Background Technology
[0002] Carbon fiber sheet is a high-performance structural material made of carbon fiber filaments and resin matrix through a composite process. It has significant characteristics such as lightweight, high strength, corrosion resistance, and fatigue resistance, and is widely used in building reinforcement, aerospace, automobile manufacturing, sports equipment and other fields.
[0003] The prior art discloses a prestressed tensioning device for carbon fiber sheets, with publication number CN222858739U. The device includes a mounting shell; a post-tensioning unit is disposed on the inner side of the mounting shell; a cover plate is fixedly connected to the right side of the mounting shell, and a rectangular hole is formed on the right side of the cover plate; a second cover plate is fixedly connected to the left side of the mounting shell; and a mounting hole is formed on the upper side of the mounting shell. The tensioning unit includes a slider, which is slidably connected to the inner side of the mounting shell. A placement groove is formed on the right side of the slider, and a clamping plate is disposed on the inner side of the placement groove. By including a sliding plate, mounting groove one, mounting groove two, mounting rod, tensioning rod, extension rod, control plate, and jack, the device facilitates the jack's control of the carbon fiber sheet inside the sliding plate for prestressed tensioning. The extension plate and mounting rod facilitate the removal of the extension rod, avoiding the increased workload of cutting the extension rod.
[0004] The inner side of the aforementioned placement groove is equipped with a clamping plate. The clamping plate moves up and down inside the placement groove to hold and fix the carbon fiber sheet, preventing the carbon fiber sheet from moving. However, when the clamping plate holds the carbon fiber sheet, it may be damaged, requiring the clamping plate to be disassembled and replaced. The entire device needs to be disassembled, making the replacement of the clamping plate quite troublesome and time-consuming. Utility Model Content
[0005] The purpose of this invention is to provide a prestressed tensioning device for carbon fiber sheets to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a carbon fiber sheet prestressing tensioning device, comprising a clamping device and a metal frame, wherein a scale is inserted into the top of the metal frame, and a carbon fiber sheet body is slidably connected inside the right end of the metal frame, and the clamping device is installed inside the metal frame.
[0007] The clamping device includes a metal rod, with a metal plate bolted to the left end of the metal rod and a clamp bolted to the right end of the metal rod. A jack is installed at the middle position of the right side surface of the metal plate.
[0008] The clamp includes a metal shell, a limiting plug one is installed at the middle of the top of the metal shell, a threaded rod is welded to the top surface of the metal shell, a connecting shell is connected to the bottom end of the limiting plug one, a clamping silicon block is installed on the bottom surface of the connecting shell, a support platform is bolted to the bottom surface inside the metal shell, a connecting frame is bolted to the top surface of the clamping silicon block, a helical spring is installed on the inner wall surface of the connecting frame, and a limiting plug two is installed on the outward side surface of the helical spring.
[0009] Preferably, the metal shell is slidably connected to the inner wall surface of the metal frame, and the metal rod is slidably connected to the front and rear ends of the metal frame. The metal shell and the jack slide on the inner wall surface of the metal frame to adjust the position of the metal shell and protect its stability.
[0010] Preferably, the jack is installed at the left end of the metal frame. The jack pushes the metal plate to move to the left, and the metal plate drives the metal rod to move to the left, thereby adjusting the position of the metal shell.
[0011] Preferably, the carbon fiber sheet body is slidably connected to the inner wall of the right end of the metal frame, and the carbon fiber sheet body is inserted into the inner wall surface of the metal shell. The metal shell drives the carbon fiber sheet body to slide on the inner wall surface of the metal frame, thereby performing prestressing tensioning on the carbon fiber sheet body.
[0012] Preferably, the clamping silicon block is movably connected to the left end of the top surface of the carbon fiber sheet body, and the support platform is movably connected to the left end of the bottom surface of the carbon fiber sheet body. The clamping silicon block and the support platform clamp and fix the carbon fiber sheet body, and perform prestressing tensioning on the carbon fiber sheet body.
[0013] Preferably, the second limiting plug is inserted into the bottom end of the first limiting plug, and the second limiting plug is inserted into the top end of the connecting shell. The second limiting plug limits and fixes the connecting shell and the first limiting plug, which facilitates the disassembly of the first limiting plug and the connecting shell and increases the service life of the first limiting plug and the connecting shell.
[0014] Preferably, the second limiting plug is inserted into the outward end of the connecting frame, and the second limiting plug slides on the surface of the connecting frame. The helical spring pushes the second limiting plug to slide on the inner wall surface of the connecting frame, which facilitates the disassembly and replacement of the second limiting plug. A connecting rod is bolted to the inner wall surface of the connecting frame, and the connecting rod is connected to the connecting frame by bolts, which facilitates the disassembly and replacement of the connecting rod and increases the service life of the connecting frame.
[0015] Preferably, the connecting frame is inserted into the inner wall surface of the connecting shell, and the second limiting block is slidably connected to the top surface of the connecting shell. The second limiting block slides on the surface of the connecting frame, which facilitates the adjustment of the position of the second limiting block and increases the service life of the second limiting block.
[0016] Compared with the prior art, the beneficial effects of this utility model are: This carbon fiber sheet prestressing tensioning device is equipped with a second limiting plug, a connecting frame, a connecting shell, and a first limiting plug. The second limiting plug is inserted into the connection between the first limiting plug and the connecting shell, thus determining the position of the connecting shell and the first limiting plug. This facilitates the disassembly and replacement of the second limiting plug and the clamping silicon block, increases the service life of the second limiting plug and the clamping silicon block, and protects the safety of the second limiting plug and the clamping silicon block.
[0017] This carbon fiber sheet prestressing tensioning device is equipped with a second limiting plug, a helical spring, a connecting frame, and a clamping silicon block. The second limiting plug disengages from the connecting frame, allowing the clamping silicon block to move the connecting frame downwards. This facilitates the disassembly and replacement of the clamping silicon block and the second limiting plug, making the replacement of the clamping silicon block quick and convenient, increasing the service life of the clamping silicon block, and protecting the safety of the clamping silicon block. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the entire utility model; Figure 2 This is a three-dimensional schematic diagram of the clamping device of this utility model; Figure 3 This is a three-dimensional schematic diagram of the fixture of this utility model; Figure 4 This is a three-dimensional schematic diagram of the limiting insert block 2 and the helical spring of this utility model.
[0019] In the diagram: 1. Clamping device; 11. Metal rod; 12. Jack; 13. Clamp; 131. Metal shell; 132. Limiting block one; 133. Threaded rod; 134. Limiting block two; 135. Helical spring; 136. Connecting frame; 137. Connecting shell; 138. Support platform; 139. Clamping silicon block; 14. Metal plate; 2. Metal frame; 3. Scale; 4. Carbon fiber sheet body. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4 The present invention provides the following technical solution: A carbon fiber sheet prestressing tensioning device includes a clamping device 1 and a metal frame 2. A scale 3 is inserted into the top of the metal frame 2, and a carbon fiber sheet body 4 is slidably connected inside the right end of the metal frame 2. The clamping device 1 is installed inside the metal frame 2.
[0022] The clamping device 1 includes a metal rod 11, a metal plate 14 is bolted to the left end of the metal rod 11, a clamp 13 is bolted to the right end of the metal rod 11, and a jack 12 is installed at the middle position of the right side surface of the metal plate 14.
[0023] The clamp 13 includes a metal housing 131. A jack 12 is installed at the left end of the metal frame 2. The jack 12 pushes the metal plate 14 to move to the left. The metal plate 14 drives the metal rod 11 to move to the left, adjusting the position of the metal housing 131.
[0024] A limit plug 132 is installed at the middle of the top of the metal shell 131. The metal shell 131 is slidably connected to the inner wall surface of the metal frame 2. The metal rod 11 is slidably connected to the front and rear ends of the metal frame 2. The metal shell 131 and the jack 12 slide on the inner wall surface of the metal frame 2 to adjust the position of the metal shell 131 and protect the stability of the metal shell 131.
[0025] A threaded rod 133 is welded to the top surface of the metal shell 131. The carbon fiber sheet body 4 is slidably connected to the inner wall of the right end of the metal frame 2. The carbon fiber sheet body 4 is inserted into the inner wall surface of the metal shell 131. The metal shell 131 drives the carbon fiber sheet body 4 to slide on the inner wall surface of the metal frame 2 to perform prestressing tensioning on the carbon fiber sheet body 4.
[0026] The bottom end of the limiting insert 132 is connected to the connecting shell 137. The bottom surface of the connecting shell 137 is equipped with a clamping silicon block 139. The bottom surface of the metal shell 131 is bolted to the support platform 138. The clamping silicon block 139 is movably connected to the left end of the top surface of the carbon fiber sheet body 4. The support platform 138 is movably connected to the left end of the bottom surface of the carbon fiber sheet body 4. The clamping silicon block 139 and the support platform 138 clamp and fix the carbon fiber sheet body 4, and perform prestressing tensioning on the carbon fiber sheet body 4.
[0027] A connecting frame 136 is bolted to the top surface of the clamping silicon block 139. A helical spring 135 is installed on the inner wall surface of the connecting frame 136. A limit plug 134 is installed on the outward side surface of the helical spring 135. The connecting frame 136 is inserted into the inner wall surface of the connecting housing 137. The limit plug 134 is slidably connected to the top surface of the connecting housing 137. The limit plug 134 slides on the surface of the connecting frame 136, facilitating adjustment of its position and increasing its service life. The limit plug 134 is inserted into the outward end of the connecting frame 136. The limit plug 134 slides on the surface of the connecting frame 136, and the helical spring 135 pushes... The second movable limit plug 134 slides on the inner wall surface of the connecting frame 136, facilitating its disassembly and replacement. A connecting rod is bolted to the inner wall surface of the connecting frame 136, and the connecting rod is connected to the connecting frame 136 via bolts, facilitating its disassembly and replacement and increasing the service life of the connecting frame 136. The second movable limit plug 134 is inserted into the bottom end of the first movable limit plug 132 and into the top end of the connecting housing 137. The second movable limit plug 134 limits and fixes the connecting housing 137 and the first movable limit plug 132, facilitating their disassembly and increasing their service life.
[0028] When in use, rotate the nut, and the nut rotates on the surface of the threaded rod 133. The connection between the limiting plug 132 and the threaded rod 133 becomes loose, pulling the limiting plug 132 upward. The limiting plug 132 drives the connecting housing 137 and the clamping silicon block 139 to move upward.
[0029] The connecting shell 137 and the clamping silicon block 139 are detached from the carbon fiber sheet body 4. The carbon fiber sheet body 4 is pulled to the right to detach from the metal shell 131, the support platform 138 and the clamping silicon block 139, making it easy to disassemble and replace the carbon fiber sheet body 4.
[0030] After replacement, the carbon fiber sheet body 4 is inserted into the metal shell 131. The nut is rotated, and the nut pushes the limiting plug 132 to move downward. The limiting plug 132 pushes the connecting shell 137 to move downward. The connecting shell 137 drives the clamping silicon block 139 to move downward, so that the support platform 138 and the clamping silicon block 139 clamp and fix the carbon fiber sheet body 4, keeping the carbon fiber sheet body 4 stable.
[0031] Start the jack 12, which pushes the metal plate 14 to the left. The metal plate 14 pulls the metal rod 11 to the left. The metal rod 11 slides on the inner wall surface of the metal frame 2. The metal rod 11 drives the metal shell 131 to move to the left. The metal shell 131, the support platform 138, and the clamping silicon block 139 perform prestressing tensioning on the carbon fiber sheet body 4.
[0032] 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 the 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 fiber sheet prestressing tensioning device, comprising a clamping device (1) and a metal frame (2), characterized in that: A scale (3) is inserted into the top of the metal frame (2), and a carbon fiber sheet body (4) is slidably connected inside the right end of the metal frame (2). The clamping device (1) is installed inside the metal frame (2). The clamping device (1) includes a metal rod (11), a metal plate (14) is bolted to the left end of the metal rod (11), a clamp (13) is bolted to the right end of the metal rod (11), and a jack (12) is installed in the middle of the right side surface of the metal plate (14). The clamp (13) includes a metal shell (131), a limiting plug (132) is installed at the middle of the top of the metal shell (131), a threaded rod (133) is welded to the top surface of the metal shell (131), a connecting shell (137) is connected to the bottom end of the limiting plug (132), a clamping silicon block (139) is installed on the bottom surface of the connecting shell (137), a support platform (138) is bolted to the bottom surface inside the metal shell (131), a connecting frame (136) is bolted to the top surface of the clamping silicon block (139), a helical spring (135) is installed on the inner wall surface of the connecting frame (136), and a limiting plug (134) is installed on the outward side surface of the helical spring (135).
2. The carbon fiber sheet prestressing tensioning device according to claim 1, characterized in that: The metal shell (131) is slidably connected to the inner wall surface of the metal frame (2), and the metal rod (11) is slidably connected to the front and rear ends of the metal frame (2).
3. The carbon fiber sheet prestressing tensioning device according to claim 2, characterized in that: The jack (12) is installed on the left end of the metal frame (2).
4. The carbon fiber sheet prestressing tensioning device according to claim 3, characterized in that: The carbon fiber sheet body (4) is slidably connected to the inner wall of the right end of the metal frame (2), and the carbon fiber sheet body (4) is inserted into the inner wall surface of the metal shell (131).
5. The carbon fiber sheet prestressing tensioning device according to claim 4, characterized in that: The clamping silicon block (139) is movably connected to the left end of the top surface of the carbon fiber sheet body (4), and the support platform (138) is movably connected to the left end of the bottom surface of the carbon fiber sheet body (4).
6. The carbon fiber sheet prestressing tensioning device according to claim 5, characterized in that: The second limiting plug (134) is inserted into the bottom end of the first limiting plug (132), and the second limiting plug (134) is inserted into the top end of the connecting shell (137).
7. The carbon fiber sheet prestressing tensioning device according to claim 6, characterized in that: The limiting plug (134) is inserted into the outward end of the connecting frame (136).
8. The carbon fiber sheet prestressing tensioning device according to claim 7, characterized in that: The connecting frame (136) is inserted into the inner wall surface of the connecting shell (137), and the limiting plug (134) is slidably connected to the top surface of the connecting shell (137).