Structural carbon fiber reinforcement pretensioning device

Abstract

The utility model discloses a structure carbon fiber reinforcing pretightening device, including reinforcing pretightening device main part, reinforcing pretightening device main part includes tensioning end support and fixed end support, both ends of tensioning end support all are established with slide hole, the inside through -thread pull rod of slide hole, the top of two through -thread pull rod is provided with tensioning end fixed base, can be fixed between the through -thread pull rod and tensioning end support after pretightening installation through the design reinforcing installation mechanism, once again lower the surface of the lateral contact inclined plane structure body extrusion movement of lower pressing plate, simultaneously, two outer inclined plane clamping board are clamped and occluded on the surface of through -thread pull rod between through -thread pull rod and tensioning end support and strengthen fixed installation, thus after pretightening installation, it is convenient to fix again, and double -reinforced fixed more stable pretightening, and it is not easy to loosen and unstable when stressed after pretightening installation.

Description

Technical Field

[0001] This utility model belongs to the technical field of reinforcement and pre-tightening devices, specifically relating to a structural carbon fiber reinforcement and pre-tightening device. Background Technology

[0002] Structural carbon fiber is a high-performance composite material made by reinforcing a resin matrix (such as epoxy, vinyl ester, etc.) with carbon fiber. It has the characteristics of being lightweight, high-strength, and corrosion-resistant, and is widely used in building reinforcement. Therefore, when structural carbon fiber is used for building reinforcement installation, it needs to be pre-tightened. Usually, the carbon fiber plate is pre-tightened by installing a reinforcement pre-tightening device. The existing reinforcement pre-tightening device is the equipment used to reinforce and install structural carbon fiber plates during building construction.

[0003] Existing reinforcement pre-tightening devices, when used for pre-tightening and fixing carbon fiber plates, require the rotating nuts and three pairs of threaded rods to slide and tighten inside the tensioning end support after pre-tightening. At this point, the nuts, after being rotated and installed on the outer surface of the threaded rods, are not convenient for reinforcement installation. Under frequent stress, they are prone to loosening and instability. Furthermore, when the nuts loosen, the support becomes loose, resulting in loose installation of the carbon fiber plate, reducing the stability of the pre-tightening installation, and affecting the strengthening and fixing effect of the reinforcement pre-tightening device after the carbon fiber plate is pre-tightened. Therefore, this utility model proposes a structural carbon fiber reinforcement pre-tightening device. Utility Model Content

[0004] The purpose of this utility model is to provide a structural carbon fiber reinforcement pre-tightening device to solve the problems mentioned in the background art, such as the difficulty in reinforcement installation after the nut three is rotated and installed on the outer surface of the threaded tie rod when the reinforcement pre-tightening device is used for pre-tightening and fixing carbon fiber plates, the easy loosening and instability under frequent stress, and the loosening of the nut three causing the support to loosen, resulting in the carbon fiber plate not being installed tightly, thus reducing the stability of the pre-tightening installation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a structural carbon fiber reinforcement pre-tightening device, comprising a reinforcement pre-tightening device body, the reinforcement pre-tightening device body including a tensioning end support and a fixed end support, both ends of the tensioning end support having sliding holes, threaded rods passing through the sliding holes, tensioning end fixing seats being provided at the top ends of the two threaded rods, and nuts being threadedly connected to the ends of the threaded rods on the surface of the tensioning end fixing seats, a carbon fiber plate being provided at the connection between the tensioning end fixing seats and the fixed end support, and the reinforcement pre-tightening device body also having:

[0006] A reinforcement installation mechanism, comprising a screw-in pushing assembly disposed at the middle position inside the sliding hole, wherein a guide assembly is provided at the end of the screw-in pushing assembly, and a clamping reinforcement assembly is provided at the end of the screw-in pushing assembly;

[0007] An auxiliary reinforcement installation mechanism is provided, which includes a downward reinforcing installation component disposed at the top of the fixed end support and the tensioning end fixed seat, and an upward adjustment auxiliary fixing component disposed at the bottom of the fixed end support and the tensioning end fixed seat.

[0008] Preferably, the outer surface of the threaded tie rod is rotated with a nut three at the tail end of the tensioning end support, the tail ends of the two threaded tie rods are connected by a tensioning abutment plate, and the end of the threaded tie rod is threadedly connected with a nut two on the rear surface of the tensioning abutment plate.

[0009] Preferably, the screw-in pushing assembly includes a movable adjustment groove located in the middle of the sliding hole inside the tensioning end support. A lower pressure plate is provided at the top of the movable adjustment groove. A screw-in threaded rod is threaded to both ends of the upper surface of the tensioning end support. The bottom end of the screw-in threaded rod is connected to the inside of the lower pressure plate through a rotating ring. Both ends of the inside of the lower pressure plate have inclined surface structures.

[0010] Preferably, the guide assembly includes limiting guide grooves formed at both ends of the lower pressure plate, a limiting guide rod sliding inside the limiting guide groove, and the top end of the limiting guide rod being fixed to the top end of the movable adjustment groove by mounting bolts.

[0011] Preferably, the clamping and reinforcing assembly includes control slots formed at both ends inside the movable adjustment slot, and an outer inclined clamping plate is provided inside the control slot. The end of the outer inclined clamping plate matches the surface structure of the threaded tie rod, and the surface of the inclined structure is in contact with the surface of the outer inclined clamping plate.

[0012] Preferably, the two outer inclined clamping plates are symmetrically arranged, and a return spring is fixed to the connection between the surface of the outer inclined clamping plate and the inner side of the movable adjustment groove by welding.

[0013] Preferably, the screw-in pushing assembly includes a clamping groove formed inside the tension end fixing seat and the fixed end support. An upper clamping plate is provided at the top of the inside of the clamping groove. Two screw-in threaded rods are threadedly connected to the upper surfaces of the tension end fixing seat and the fixed end support. The ends of the screw-in threaded rods are rotatably connected to the inside of the upper clamping plate through a connecting ring.

[0014] Preferably, the upper adjustment auxiliary fixing component includes a bottom reinforcing plate disposed at the bottom end inside the clamping groove, and a threaded rod three is threadedly connected to the upper surface end of the tensioning end fixing seat and the fixing end support. The bottom end of the threaded rod three is rotatably connected to the end of the bottom reinforcing plate through a connecting ring. The upper surface of the bottom reinforcing plate and the lower surface of the upper clamping plate both form a main corrugated structure, and the end surface of the carbon fiber plate is provided with a corresponding auxiliary corrugated structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By designing a reinforced installation mechanism, the threaded tie rod and the tensioning end support can be fixed after pre-tightening installation. The lower pressure plate is then moved down to contact the surface of the inclined structure and press against the outer inclined clamping plate. At the same time, the two outer inclined clamping plates clamp and engage with the surface of the threaded tie rod to strengthen the fixed installation between the threaded tie rod and the tensioning end support. Therefore, it is easy to fix it again after pre-tightening installation. The double reinforcement fixation makes the pre-tightening more stable. After pre-tightening installation, it is not easy to loosen or become unstable under stress, thus improving the reinforcement and fixation of the main body of the pre-tightening device between the threaded tie rod and the tensioning end support after the carbon fiber plate is pre-tightened. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial cross-sectional view of the tensioning end support and threaded tie rod of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A;

[0020] Figure 4 This is a schematic diagram of the external inclined plate structure of this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the carbon fiber plate, tensioning end fixing seat and bottom reinforcing plate of this utility model.

[0022] In the diagram: 100. Main body of the reinforced pre-tightening device; 101. Fixed end support; 102. Carbon fiber plate; 1021. Upper clamping plate; 1022. Threaded rod II; 1023. Threaded rod III; 1024. Clamping groove; 1025. Bottom reinforcing plate; 1026. Main corrugated structure; 103. Tensioning end fixed seat; 104. Nut I; 105. Sliding hole; 1051. Moving adjustment groove; 1052. Lower pressure plate; 1053. Threaded rod I; 1054. Limiting guide rod; 1055. Limiting guide groove; 1056. Control groove; 1057. Outer inclined clamping plate; 1058. Return spring; 1059. Inclined structure; 106. Tensioning end support; 107. Threaded tie rod; 108. Tensioning abutment plate; 1081. Nut II; 1082. Nut III. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a structural carbon fiber reinforcement pre-tightening device, including a reinforcement pre-tightening device body 100, the reinforcement pre-tightening device body 100 including a tension end support 106 and a fixed end support 101, both ends of the tension end support 106 are provided with sliding holes 105, threaded tie rods 107 pass through the interior of the sliding holes 105, tension end fixing seats 103 are provided at the top of the two threaded tie rods 107, and nuts 104 are threadedly connected to the ends of the threaded tie rods 107 on the surface of the tension end fixing seats 103, and a carbon fiber plate 102 is provided at the connection between the tension end fixing seats 103 and the fixed end support 101;

[0025] The outer surface of the threaded tie rod 107 is rotated with a nut 1082 at the tail end of the tensioning end support 106. The connection between the tail ends of the two threaded tie rods 107 is penetrated by a tensioning plate 108. The end of the threaded tie rod 107 is threadedly connected to a nut 1081 on the rear surface of the tensioning plate 108. The main body 100 of the reinforcing pre-tightening device is also equipped with:

[0026] The reinforcement installation mechanism includes a screw-in pushing component located at the middle position inside the sliding hole 105. The end of the screw-in pushing component is provided with a guide component and a clamping reinforcement component. When the main body 100 of the reinforcement pre-tightening device is pre-tightened to the carbon fiber plate 102, the reinforcement installation mechanism can internally reinforce and fix the threaded tie rod 107 and the tensioning end support 106.

[0027] In order to facilitate the downward movement and adjustment of the lower pressure plate 1052 by means of the screw-in pushing assembly, in this embodiment, preferably, the screw-in pushing assembly includes a movable adjustment groove 1051 located in the middle of the sliding hole 105 inside the tensioning end support 106. The lower pressure plate 1052 is provided at the top of the movable adjustment groove 1051. The upper surface of the tensioning end support 106 is threaded to both ends with screw-in threaded rods 1053. The bottom end of the screw-in threaded rod 1053 is connected to the interior of the lower pressure plate 1052 through a rotating ring. The screw-in threaded rod 1053 can be rotated to drive the lower pressure plate 1052 to move downward stably, which facilitates downward compression adjustment. Both ends of the interior of the lower pressure plate 1052 are formed with inclined structure 1059. When the lower pressure plate 1052 is moved downward, it is pressed and moved by the surface of the inclined structure 1059 contacting the outer inclined clamping plate 1057.

[0028] In order to facilitate the stable downward movement of the lower pressure plate 1052 and the adjustment of the two outer inclined clamping plates 1057 by means of the guide assembly, in this embodiment, preferably, the guide assembly includes limiting guide grooves 1055 formed at both ends of the lower pressure plate 1052, and a limiting guide rod 1054 slides inside the limiting guide groove 1055. The top end of the limiting guide rod 1054 is fixed to the top end of the moving adjustment groove 1051 by mounting bolts, so that when the lower pressure plate 1052 moves downward, it can drive the limiting guide rod 1054 to move stably inside the limiting guide groove 1055.

[0029] To facilitate the reinforcement and installation of the threaded tie rod 107 inside the tension end support 106 using a clamping and reinforcing assembly, in this embodiment, preferably, the clamping and reinforcing assembly includes control grooves 1056 formed at both ends inside the movable adjustment groove 1051. An outer inclined clamping plate 1057 is provided inside the control groove 1056, with its end matching the surface structure of the threaded tie rod 107. The surface of the inclined structure 1059 contacts the surface of the outer inclined clamping plate 1057, allowing the outer inclined clamping plate 1057 to be moved and clamped within the control groove 1056 onto the surface of the threaded tie rod 107, facilitating clamping and reinforcement installation. Furthermore, a return spring 1058 is welded to the connection between the surface of the outer inclined clamping plate 1057 and the inner side of the movable adjustment groove 1051. During adjustment, after releasing the lower pressure plate 1052, the return spring 1058 automatically resets the outer inclined clamping plate 1057.

[0030] An auxiliary reinforcement installation mechanism is provided, which includes a downward reinforcing installation component located at the top of the fixed end support 101 and the tensioning end fixing seat 103. An upward adjustment auxiliary fixing component is provided at the bottom of the fixed end support 101 and the tensioning end fixing seat 103. During installation, the auxiliary reinforcement installation mechanism can reinforce and fix the end of the carbon fiber plate 102, making the pre-tightening installation more stable.

[0031] To facilitate the convenient fixing and installation of the carbon fiber plate 102 inside the fixed end support 101 and the tensioning end fixing seat 103 via the screw-in pushing assembly, in this embodiment, preferably, the screw-in pushing assembly includes a clamping groove 1024 formed inside the tensioning end fixing seat 103 and the fixed end support 101. An upper clamping plate 1021 is provided at the top of the inside of the clamping groove 1024. Two screw-in threaded rods 1022 are threadedly connected to the upper surfaces of the tensioning end fixing seat 103 and the fixed end support 101. The ends of the screw-in threaded rods 1022 are rotatably connected to the inside of the upper clamping plate 1021 via a connecting ring. After the end of the carbon fiber plate 102 is embedded into the inside of the clamping groove 1024, rotating the screw-in threaded rods 1022 causes the upper clamping plate 1021 to move down, reinforcing the end of the carbon fiber plate 102 inside the fixed end support 101 and the tensioning end fixing seat 103.

[0032] To facilitate the reinforcement and installation of the carbon fiber plate 102 after it has been fixed by adjusting the auxiliary fixing component, in this embodiment, preferably, the auxiliary fixing component includes a bottom reinforcing plate 1025 disposed at the bottom end of the clamping groove 1024. The tension end fixing seat 103 and the upper surface end of the fixing end support 101 are threadedly connected to a threaded rod 1023. The bottom end of the threaded rod 1023 is rotatably connected to the end of the bottom reinforcing plate 1025 by a connecting ring. The upper surface of the bottom reinforcing plate 1025 and the lower surface of the upper clamping plate 1021 are both formed with a main corrugated structure 1026. The end surface of the carbon fiber plate 102 is provided with a corresponding auxiliary corrugated structure. The threaded rod 1023 can be rotated in the opposite direction to pull the bottom reinforcing plate 1025 upward, and when the bottom reinforcing plate 1025 moves upward, the upward movement of the carbon fiber plate 102 and the upper clamping plate 1021 are reinforced and fixed, thus strengthening the fixing and installation.

[0033] The working principle and usage process of this utility model: When using this carbon fiber reinforced pre-tightening device, firstly, the fixed end support 101 and the tensioning end support 106 are fixedly installed at their respective positions. After fixing, the end of the carbon fiber plate 102 is embedded into the fixed end support 101 and the tensioning end fixed seat 103 for secure installation. At this time, the jack is positioned at the connection between the tensioning end support 106 and the tensioning abutment plate 108, and the nut 1081 is screwed in to fix the tensioning abutment plate 108. The jack then moves along the belt... The movable threaded tie rod 107 slides in the sliding hole 105 inside the tensioning end support 106. Therefore, when the threaded tie rod 107 is pulled, it drives the tensioning end fixed seat 103 to move and pull the carbon fiber plate 102 for pre-tightening and reinforcement installation. After reinforcement installation, the jack is removed, the tail end of the threaded tie rod 107 is cut off and the tensioning abutment plate 108 is removed. The nut 1082 is rotated to reinforce the threaded tie rod 107 and the tensioning end support 106, thereby facilitating the reinforcement and pre-tightening installation of the carbon fiber plate 102 through the main body 100 of the reinforcement pre-tightening device.

[0034] Then, before the pre-tightening device body 100 is used for pre-tightening installation, when the end of the carbon fiber plate 102 is closed inside the tension end fixing seat 103 and the fixing end support 101, the end of the carbon fiber plate 102 is embedded in the clamping groove 1024 of the fixing end support 101 and the tension end fixing seat 103 and contacts the surface of the bottom reinforcing plate 1025 to adhere to the main corrugated structure 1026. Rotating the threaded rod 1022 drives the upper clamping plate 1021 to move down, and the upper clamping plate 1021 moves down through the main corrugated structure 1026. The 026 contact carbon fiber plate 102 is fixedly installed with auxiliary corrugations on the upper surface. After installation, the two screw-in rods 1023 are rotated in the opposite direction to move the bottom reinforcing plate 1025 upward. When the bottom reinforcing plate 1025 is moved upward, it is reinforced again by contacting the lower surface of the carbon fiber plate 102 through the main corrugated structure 1026. Therefore, it is convenient to reinforce the carbon fiber plate 102 with the tensioning end fixing seat 103 and the fixing end support 101. Compared with the existing direct installation to the top, it is more secure and convenient for reinforcement and pre-tightening.

[0035] Finally, after the threaded tie rod 107 is fixedly installed inside the tensioning end support 106, the lower surface of the bottom reinforcing plate 1025 is at the bottom of the clamping groove 1024. Rotating the threaded rod 1053 again causes the lower pressure plate 1052 to move downwards. When the lower pressure plate 1052 moves downwards from the top of the moving adjustment groove 1051, it causes the limiting guide rod 1054 to slide within the limiting guide groove 1055, causing the surface of the lower pressure plate 1052 that contacts the inclined structure 1059 to press and move against the outer inclined clamping plate 1057 until the outer... The inclined clamping plate 1057 is located inside the control groove 1056 for limited movement and clamping fixation. At the same time, the two outer inclined clamping plates 1057 clamp and engage with the surface of the threaded tie rod 107 to strengthen the fixation between the threaded tie rod 107 and the tensioning end support 106. Therefore, it is easy to fix again after pre-tightening installation. The double reinforcement fixation makes the pre-tightening more stable. After pre-tightening installation, it is not easy to loosen or become unstable when subjected to force, thus improving the reinforcement and fixation of the main body 100 of the reinforced pre-tightening device between the threaded tie rod 107 and the tensioning end support 106 after the carbon fiber plate 102 is pre-tightened.

[0036] Although embodiments of the present invention have been shown and described (see the detailed description above), 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 structural carbon fiber reinforcement pre-tightening device, comprising a reinforcement pre-tightening device body (100), the reinforcement pre-tightening device body (100) comprising a tensioning end support (106) and a fixed end support (101), wherein both ends of the tensioning end support (106) are provided with sliding holes (105), threaded rods (107) are threaded through the interior of the sliding holes (105), tensioning end fixing seats (103) are provided at the top ends of the two threaded rods (107), and nuts (104) are threadedly connected to the ends of the threaded rods (107) on the surface of the tensioning end fixing seats (103), and a carbon fiber plate (102) is provided at the connection between the tensioning end fixing seats (103) and the fixed end support (101), characterized in that: The main body (100) of the reinforcement and pre-tightening device is also equipped with: A reinforcement installation mechanism, which includes a screw-in pushing component disposed at the middle position inside the sliding hole (105), wherein the end of the screw-in pushing component is provided with a guide component and the end of the screw-in pushing component is provided with a clamping reinforcement component; An auxiliary reinforcement installation mechanism is provided, and the auxiliary reinforcement installation mechanism includes a downward reinforcing installation component disposed at the top of the fixed end support (101) and the tensioning end fixed seat (103), and an upward adjustment auxiliary fixing component is disposed at the bottom of the fixed end support (101) and the tensioning end fixed seat (103).

2. The structural carbon fiber reinforcement pre-tightening device according to claim 1, characterized in that: The outer surface of the threaded tie rod (107) is rotated with a nut three (1082) at the tail end of the tensioning end support (106). The tail ends of the two threaded tie rods (107) are connected by a tensioning abutment plate (108). The end of the threaded tie rod (107) is threadedly connected with a nut two (1081) on the rear surface of the tensioning abutment plate (108).

3. The structural carbon fiber reinforcement pre-tightening device according to claim 1, characterized in that: The screw-in pushing assembly includes a movable adjustment groove (1051) located in the middle of the sliding hole (105) inside the tensioning end support (106). The top of the movable adjustment groove (1051) is provided with a lower pressure plate (1052). The upper surface of the tensioning end support (106) is threaded to both ends with a screw-in threaded rod (1053). The bottom end of the screw-in threaded rod (1053) is connected to the interior of the lower pressure plate (1052) through a rotating ring. Both ends of the interior of the lower pressure plate (1052) are formed with inclined surface structures (1059).

4. The pre-tightening device for structural carbon fiber reinforcement according to claim 3, characterized in that: The guide assembly includes limiting guide grooves (1055) opened at both ends of the lower pressure plate (1052), and a limiting guide rod (1054) slides inside the limiting guide groove (1055). The top end of the limiting guide rod (1054) is fixed to the top end of the movable adjustment groove (1051) by mounting bolts.

5. The pre-tightening device for structural carbon fiber reinforcement according to claim 3, characterized in that: The clamping and reinforcing assembly includes control slots (1056) formed at both ends inside the movable adjustment slot (1051). An outer inclined clamping plate (1057) is limited inside the control slot (1056). The end of the outer inclined clamping plate (1057) matches the surface structure of the threaded tie rod (107). The surface of the inclined structure (1059) is in contact with the surface of the outer inclined clamping plate (1057).

6. The pre-tightening device for structural carbon fiber reinforcement according to claim 5, characterized in that: The two outer inclined clamps (1057) are symmetrically arranged, and a return spring (1058) is fixed to the connection between the surface of the outer inclined clamp (1057) and the inner side of the movable adjustment groove (1051) by welding.

7. The pre-tightening device for structural carbon fiber reinforcement according to claim 1, characterized in that: The screw-in pushing assembly includes a clamping groove (1024) formed inside the tension end fixing seat (103) and the fixed end support (101). An upper clamping plate (1021) is provided at the top of the inside of the clamping groove (1024). Two screw-in threaded rods (1022) are threadedly connected to the upper surfaces of the tension end fixing seat (103) and the fixed end support (101). The ends of the screw-in threaded rods (1022) are rotatably connected to the inside of the upper clamping plate (1021) through a connecting ring.

8. The pre-tightening device for structural carbon fiber reinforcement according to claim 7, characterized in that: The upper adjustment auxiliary fixing component includes a bottom reinforcing plate (1025) set at the bottom of the clamping groove (1024). The tensioning end fixing seat (103) and the upper surface end of the fixing end support (101) are threadedly connected to a threaded rod three (1023). The bottom end of the threaded rod three (1023) and the end of the bottom reinforcing plate (1025) are rotatably connected by a connecting ring. The upper surface of the bottom reinforcing plate (1025) and the lower surface of the upper clamping plate (1021) are both formed with a main corrugated structure (1026). The end surface of the carbon fiber plate (102) is provided with a corresponding auxiliary corrugated structure.

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