Coplanar carbon fiber plate tensioning device

Abstract

A coplanar carbon fiber plate tensioning device. A fixed-end anchorage comprises a fixed-end base (100) and a fixed-end anchor block (200). A tensioning-end anchorage comprises a tensioning-end base (500), a tensioning-end anchor block (400), locking screws (1), tensioning screws (2) and a jack (801). Both ends of a carbon fiber plate (4) are respectively connected to the fixed-end anchor block (200) and the tensioning-end anchor block (400). The axes of the locking screws (1) are located in the same plane as the carbon fiber plate (4). One end of each locking screw (1) is connected to the tensioning-end anchor block (400), and the other end thereof passes through a through hole in the tensioning-end base (500) and is then screwed to a stop nut (700). One end of each tensioning screw (2) is connected to the tensioning-end anchor block (400), and the other end thereof passes through a jack backing plate (800) and is then screwed to a tensioning nut (900).

Description

A coplanar carbon fiber plate tensioning device TECHNICAL FIELD

[0001] The utility model relates to a coplanar carbon fiber plate tensioning device and belongs to the technical field of construction. BACKGROUND

[0002] A carbon fiber anchoring device is a key technical device in the technical field of construction engineering, which is used to enhance structural performance and improve building stability. It is mainly used to reliably fix carbon fiber composite materials on the surface of concrete, steel or other base materials, thereby achieving the effect of structural reinforcement or reinforcement. The carbon fiber anchoring device firmly fixes the carbon fiber to the surface of the building component through mechanical clamping, chemical bonding or a combination of both. Under the action of load, the carbon fiber and the base material bear the stress together, thereby dispersing stress concentration and improving the bearing capacity and seismic performance of the structure. For example, the pre-stressed carbon fiber tensioning device disclosed in Chinese patent document CN209923796U, as shown in FIG. 1, includes a fixed end base 100, a fixed end anchor block, a tensioning cable 3 of carbon fiber, a tensioning end anchor block, and a tensioning end base 500. The fixed end anchor block and the tensioning end anchor block are fixed at both ends of the tensioning cable 3, the tensioning end anchor block is arranged in the sliding groove of the tensioning end base 500 and can slide linearly in the sliding groove, the tensioning end anchor block is connected to one end of a screw rod 600, the other end of the screw rod 600 passes through a through hole of the tensioning end base 500, a stop nut 700, a jack stop plate 800 and a tensioning nut 900 in turn, and the stop nut 700 and the tensioning nut 900 are screwed on the screw rod 600; one end of a jack 801 is pressed on the jack stop plate 800, and the other end is pressed on the tensioning end base 500. Since the tensioning cable 3 needs to be in close contact with the surface of the building component, the center line of the pushing force of the jack 801 should be coplanar with the screw rod 600. Since the volume of the jack is relatively large, the screw rod 600 cannot be coplanar with the tensioning cable 3, thereby causing complex stress in the anchoring structure formed after tensioning, which reduces the anchoring effect of the anchor.

[0003] SUMMARY

[0004] Therefore, the purpose of the utility model is to provide a coplanar carbon fiber plate tensioning device that can make the locking screw rod and the carbon fiber plate coplanar.

[0005] In order to achieve the above object, the utility model discloses a coplanar carbon fiber plate tensioning device, including fixed end anchor, carbon fiber plate and tensioning end anchor, the fixed end anchor includes fixed end base and fixed end anchor block, and tensioning end anchor includes tensioning end base, tensioning end anchor block, locking screw rod, tensioning screw rod and jack, both ends of carbon fiber plate are connected to fixed end anchor block and tensioning end anchor block respectively, the axis of locking screw rod is in the same plane with carbon fiber plate, and one end of locking screw rod is connected to tensioning end anchor block, and the other end is screwed to stop nut after passing through the through hole on tensioning end base, one end of tensioning screw rod is connected to tensioning end anchor block, and the other end is screwed to tensioning nut after passing through jack baffle, one end of jack is on tensioning end base, and the other end is on the jack baffle.

[0006] The carbon fiber plate is arranged close to the surface of the building component, and the axis of the tensioning screw rod is located on the side of the carbon fiber plate away from the surface of the building component.

[0007] A linear sliding groove is arranged on the tensioning end base, and the tensioning end anchor block is located in the linear sliding groove.

[0008] Straight-through grooves are arranged on the two opposite side walls of the linear sliding groove, the tensioning screw rod is two, the end of each tensioning screw rod is connected to a connecting block, and the connecting block is connected to the tensioning end anchor block through a rod passing through the straight-through groove.

[0009] The rod is multiple.

[0010] At least one of the rods is a connecting screw rod, and the connecting screw rod is screwed on the tensioning end anchor block.

[0011] The tensioning end base includes two side wing plates, and long holes for passing through anchor bolts are formed in the side wing plates.

[0012] The locking screw rod is two, and the two locking screw rods are distributed on the left and right sides of the jack.

[0013] The axis of the jack is located on the same plane as the axis of the tensioning screw rod.

[0014] A placing groove for placing the fixed end anchor block is arranged on the fixed end base, a fixing hole for passing through a fixing screw rod is formed in the side wall of the placing groove, and the fixing screw rod is screwed on the fixed end anchor block.

[0015] By adopting the above technical scheme, the utility model discloses a coplanar carbon fiber plate tensioning device, which changes the mode that one screw rod realizes tensioning and locking in the prior art, and realizes the tensioning effect through the tensioning screw rod and realizes the locking through the locking screw rod, so that the locking screw rod can be coplanar with the carbon fiber plate, the stress of the two is also located on the same plane, and the stability of the anchoring structure and the tensioning efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a structural schematic diagram of a carbon fiber tensioning device in the prior art.

[0017] Fig. 2 is a structural schematic diagram of the present application.

[0018] Fig. 3 is another angle schematic diagram of Fig. 2.

[0019] Fig. 4 is a partial sectional view of a tensioning end anchor.

[0020] Fig. 5 is an exploded structural schematic diagram of an assembly structure of a connecting block, a tensioning screw and a tensioning end anchor block.

[0021] Fig. 6 is a use state reference diagram of the present application. DETAILED DESCRIPTION

[0022] The present application is further described in detail below with the aid of the drawings and specific embodiments.

[0023] As shown in Figs. 2-6, the present application provides a coplanar carbon fiber plate tensioning device, comprising a fixed end anchor, a carbon fiber plate and a tensioning end anchor.

[0024] The fixed end anchor comprises a fixed end base 100 and a fixed end anchor block 200, a placement groove 101 for placing the fixed end anchor block 200 is provided on the fixed end base 100, a fixing hole 102 for the fixed screw to pass through is opened on the sidewall of the placement groove, and the fixed screw is screwed to the fixed end anchor block 200.

[0025] The tensioning end anchor comprises a tensioning end base 500, a tensioning end anchor block 400, a locking screw 1, a tensioning screw 2 and a jack 801, and the two ends of the carbon fiber plate 4 are connected to the fixed end anchor block 200 and the tensioning end anchor block 400 respectively.

[0026] The axis of the locking screw 1 is in the same plane as the carbon fiber plate 4, one end of the locking screw 1 is connected to the tensioning end anchor block 400, and the other end is screwed to a stop nut 700 after passing through a through hole on the tensioning end base 500. There are two locking screws 1, which are distributed on the left and right sides of the jack 801.

[0027] One end of the tensioning screw 2 is connected to the tensioning end anchor block 400, and the other end is screwed to a tensioning nut 900 after passing through a baffle of the jack 801; the carbon fiber plate 4 is arranged close to the surface of a building component, and the axis of the tensioning screw 2 is located on the side of the carbon fiber plate 4 away from the surface of the building component. One end of the jack 801 is pressed against the tensioning end base 500, and the other end is pressed against the jack baffle 800. The axis of the jack 801 is in the same plane as the axis of the tensioning screw 2.

[0028] The linear sliding groove 501 is arranged on the tensioning end base 500, and the tensioning end anchor block 400 is located in the linear sliding groove 501.

[0029] Straight-through grooves 502 are arranged on two opposite side walls of the linear sliding groove 501 respectively, the tensioning screw rods 2 are two, and the end of each tensioning screw rod 2 is connected to a connecting block 5.

[0030] The rod members can be multiple, in the embodiment, the rod members are two, one is an insertion rod 61, one end of the insertion rod 61 is fixed to the connecting block 5, and the other end can be directly inserted into the insertion hole 401 on the tensioning end anchor block 400; the other rod member is a connecting screw rod 62, the connecting screw rod 62 is screwed into the screw hole 402 on the tensioning end anchor block 400.

[0031] The tensioning end base 500 comprises two side wing plates 503, and long holes 504 for the anchor bolts to pass through are formed in the side wing plates 503.

[0032] Compared with the prior art, the coplanar carbon fiber plate tensioning device has the following beneficial effects:

[0033] 1. The locking screw rod 1 is coplanar with the carbon fiber plate 4, so that the stress is in the same plane, the influence of the eccentric moment is reduced, and the overall stability of the anchoring system is improved.

[0034] 2. The tensioning function and the locking function are separated, the tensioning is realized by the tensioning screw rod 2, and the locking is realized by the locking screw rod 1, so that the complexity caused by the function superposition is avoided, and the operation efficiency is improved.

[0035] 3. The axes of the jacks 801, the tensioning screw rods 2 and the locking screw rods 1 are consistent with the plane of the carbon fiber plate 4, so that the transverse stress is effectively reduced, and the uniformity and reliability of force transmission are ensured.

[0036] 4. The linear sliding groove 501 is designed to make the tensioning end anchor block 400 freely move in the sliding groove, so that the adaptability of the device in different construction environments is improved, and the adjustment and operation are facilitated.

[0037] 5. The tensioning screw rods 2 are connected to the tensioning end anchor block 400 through the connecting blocks 5 and the rod members passing through the straight-through grooves 502, the connection mode is flexible, the device is convenient to disassemble and maintain, and the modularization level of the device is further improved.

[0038] 6、Base and anchor block design is reasonable, the placement slot and the fixing hole of the fixed end anchor block 200 are designed to facilitate locking operation, simplify the assembly steps, and improve the reliability and durability of the device.

[0039] 7、The device is installed close to the surface of the building component, reducing construction errors, ensuring that the carbon fiber plate 4 is in full contact with the surface of the component, and improving the reinforcement effect.

[0040] 8、The locking screw 1 and the two tensioning screws 2 arranged on the left and right sides of the jack 801 in the design enable the device to bear the tension in different directions evenly, and it is suitable for carbon fiber reinforcement engineering of various specifications and load requirements.

[0041] Overall, this device solves many shortcomings of traditional devices by reasonably separating functions, optimizing stress distribution, and improving operation convenience, and provides an efficient and stable solution for carbon fiber reinforcement technology.

[0042] Obviously, the above embodiments are only examples for clear illustration, and not limit the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A tensioning device for coplanar carbon fiber plates, characterized in that: The system includes a fixed-end anchor, a carbon fiber plate, and a tensioning-end anchor. The fixed-end anchor includes a fixed-end base and a fixed-end anchor block. The tensioning-end anchor includes a tensioning-end base, a tensioning-end anchor block, a locking screw, a tensioning screw, and a jack. Both ends of the carbon fiber plate are connected to the fixed-end anchor block and the tensioning-end anchor block, respectively. The axis of the locking screw is in the same plane as the carbon fiber plate, and one end of the locking screw is connected to the tensioning-end anchor block, while the other end passes through a through hole in the tensioning-end base and is screwed to a stop nut. One end of the tensioning screw is connected to the tensioning-end anchor block, and the other end passes through a jack baffle and is screwed to a tensioning nut. One end of the jack rests on the tensioning-end base, and the other end rests on the jack baffle.

2. The apparatus of claim 1, wherein: The carbon fiber plate is used to be attached close to the surface of the building component, and the axis of the tensioning screw is located on the side of the carbon fiber plate away from the surface of the building component.

3. The apparatus of claim 1, wherein: A linear groove is provided on the tensioning end base, and the tensioning end anchor block is located in the linear groove.

4. The apparatus of claim 3, wherein: Straight through grooves are respectively provided on two opposite side walls of the straight chute. There are two tensioning screws, and the end of each tensioning screw is connected to a connecting block. The connecting block is connected to the tensioning end anchor block through a rod passing through the straight through groove.

5. The apparatus of claim 4, wherein: There are multiple rods.

6. The apparatus of claim 5, wherein: At least one of the rods is a connecting screw, which is screwed onto the tensioning end anchor block.

7. The apparatus of any one of claims 1-6, wherein: The tensioning end base includes two side plates, and elongated holes for anchor bolts to pass through are provided on the side plates.

8. The apparatus of any one of claims 1-6, wherein: There are two locking screws, which are distributed on the left and right sides of the jack.

9. The apparatus of any one of claims 1-6, wherein: The axis of the jack and the axis of the tensioning screw are located on the same plane.

10. The apparatus of any one of claims 1-6, wherein: A placement groove for placing a fixed end anchor block is provided on the fixed end base. A fixing hole for a fixing screw to pass through is provided on the side wall of the placement groove. The fixing screw is screwed onto the fixed end anchor block.

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