CN204510623U - Carbon beaverboard anchorage - Google Patents

Abstract

The utility model discloses a kind of carbon beaverboard anchorage, comprise anchor slab and intermediate plate group, be provided with in described anchor slab from anchor slab front end to the wedge shape through hole that rear end cross-sectional area increases gradually, anchor slab front end is provided with curved surface, described intermediate plate group comprises clapboard and lower clapboard, coordinate with wedge shape through hole after upper clapboard and lower wedge shape board clamping carbon fiber board, the clamping face of upper clapboard is wavy surface, and the clamping face of lower clapboard is provided with groove.The carbon beaverboard anchorage of this structure, effectively can not only clamp carbon fiber sheet, guarantee anchoring property, and carbon fiber board stress can be avoided to concentrate, and gives full play to the ultimate strength of carbon fiber board and guarantees its application life.

Description

Carbon Fiber Plate Anchors

technical field

The utility model relates to the field of civil engineering reinforcement and reinforcement, in particular to a carbon fiber plate anchor.

Background technique

It is stipulated that the side of the upper wedge-shaped plate in contact with the carbon fiber plate is the clamping surface of the upper wedge-shaped plate, the side of the lower wedge-shaped plate in contact with the carbon fiber plate is the clamping surface of the lower wedge-shaped plate, the small-sized end of the upper wedge-shaped plate is the front end, and the large-sized The end is the rear end, the small size end of the lower wedge plate is the front end, and the large size end is the rear end.

In recent years, high-strength composite fiber materials such as carbon fiber boards have been widely used in the reinforcement field of civil engineering. Usually, the carbon fiber plate is pasted on the surface of the reinforced component to improve the strength of the component. If the carbon fiber plate is stretched and anchored to the surface of the component, the bending strength and crack resistance of the component can be improved, the use efficiency of the composite fiber material can be improved, and the reinforcement cost can be reduced.

The use of prestressed reinforcement technology requires tensioning and anchoring of carbon fiber sheets. Although carbon fiber sheets have high tensile strength, their shear resistance is poor and it is not easy to anchor. Traditional surface friction and bolt locking are used to achieve carbon fiber sheets. Clamping and anchoring are prone to clamping, slipping, and bolt loosening, and its work reliability is poor. In addition, when using existing anchorages to anchor carbon fiber sheets, it is easy to cause stress concentration on the carbon fiber sheet and affect the limit of the carbon fiber sheet. Strength and service life.

In summary, a new carbon fiber plate anchor is urgently needed to overcome the defects of the existing carbon fiber plate anchor.

Utility model content

In view of this, the purpose of this utility model is to provide a carbon fiber plate anchor, which can not only effectively clamp the carbon fiber plate, ensure the anchoring performance, but also avoid the stress concentration of the carbon fiber plate, fully exert the ultimate strength of the carbon fiber plate and ensure its service life .

The utility model solves the above-mentioned problems through the following technical means: a carbon fiber plate anchor, including an anchor plate and a clip group, the anchor plate is provided with a wedge-shaped through hole whose cross-sectional area gradually increases from the front end of the anchor plate to the rear end, The front end of the anchor plate is provided with a curved surface. The clip set includes an upper wedge plate and a lower wedge plate. The upper wedge plate and the lower wedge plate clamp the carbon fiber plate and cooperate with the wedge-shaped through hole. The clamping surface of the upper wedge plate is a corrugated surface. Grooves are arranged on the clamping surface of the lower wedge-shaped plate.

Further, the front end of the upper wedge-shaped plate is provided with an arc-shaped surface communicating with its clamping surface, and the front end of the lower wedge-shaped plate is also provided with an arc-shaped surface communicated with its clamping surface.

Further, the amplitude of the protrusions on the wave surface gradually increases from the front end to the rear end of the upper wedge-shaped plate.

Further, the wave surface matches the groove.

Further, the clamping surface of the lower wedge-shaped plate is provided with a plurality of slots, and anti-slip teeth are provided in the slots to slide and connect with the slots, and the bottoms of the anti-slip teeth are connected to the bottom of the slots through springs.

Further, the anchor plate is made of hard alloy, and the upper wedge plate and the lower wedge plate are both made of soft alloy.

Further, the upper wedge-shaped plate and the lower wedge-shaped plate clamp the carbon fiber plate and cooperate with the wedge-shaped through-hole, and there are gaps between the small-sized end of the wedge-shaped through-hole and the upper and lower wedge-shaped plates.

Beneficial effects of the present utility model: the carbon fiber plate anchorage of the present utility model includes an anchor plate and a clip group, the anchor plate is provided with a wedge-shaped through hole whose cross-sectional area gradually increases from the front end of the anchor plate to the rear end, and the anchor plate The front end is provided with a curved surface. The clip set includes an upper wedge plate and a lower wedge plate. The upper wedge plate and the lower wedge plate clamp the carbon fiber plate and cooperate with the wedge-shaped through hole. The clamping surface of the upper wedge plate is a wave surface, and the lower wedge plate Grooves are provided on the clamping faces of the plates. The carbon fiber plate anchor with this structure can not only effectively clamp the carbon fiber plate to ensure the anchoring performance, but also avoid the stress concentration of the carbon fiber plate, give full play to the ultimate strength of the carbon fiber plate and ensure its service life.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 is the structural representation of the utility model.

Figure 2 is a cross-sectional view.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings, as shown in Figure 1-2: a carbon fiber plate anchor, including an anchor plate 1 and a clip group, the anchor plate is provided with a The wedge-shaped through hole 2 with a gradually increasing cross-sectional area, the front end of the anchor plate is provided with a curved surface 3, and the clip set includes an upper wedge-shaped plate 4 and a lower wedge-shaped plate 5. Hole matching, the clamping surface of the upper wedge-shaped plate is a corrugated surface 41, the design of the corrugated surface has considered the plate thickness and curvature effects, and the clamping surface of the lower wedge-shaped plate is provided with a groove 51, and the corrugated surface matches the groove, A layer of epoxy colloid is provided on the clamping surface of the upper wedge-shaped plate and the lower wedge-shaped plate, and the anchor plate is made of hard alloy, and can also be made of other composite materials. The upper wedge-shaped plate and the lower wedge-shaped plate Both are made of soft alloys and can also be made of other composite materials. When in use, the carbon fiber plate or other composite fiber materials are clamped between the upper wedge-shaped plate and the lower wedge-shaped plate, and then the upper and lower wedge-shaped plates are closed to fit tightly with the wedge-shaped through hole and locked by the wedge-shaped effect. The carbon fiber plate anchor with this structure, on the one hand, locks through the wedge effect, making the locking more reliable; The clamping and anchoring effect of the material sheet, in addition, the front end of the anchor plate is provided with a curved surface, which can avoid the stress concentration of the carbon fiber plate when it is pulled, and can fully exert the ultimate strength of the carbon fiber plate and ensure its service life.

As a further improvement of the above technical solution, the front end of the upper wedge plate is provided with an arcuate surface 6 communicating with its clamping surface, and the front end of the lower wedge plate is also provided with an arcuate surface communicated with its clamping surface. The curved surface makes the carbon fiber plate more uniform in the tension direction, and at the same time prevents the carbon fiber plate from being sheared at the front end.

As a further improvement of the above technical solution, the amplitude of the protrusions on the wave surface gradually increases from the front end to the rear end of the upper wedge-shaped plate. This makes the protrusion near the front end of the upper wedge plate relatively gentle, because the closer the carbon fiber plate is to the front end of the upper wedge plate, the greater the pre-tension suffered, and the relatively gentle protrusion can further prevent the carbon fiber plate from being sheared.

As a further improvement of the above technical solution, a plurality of slots 7 are provided on the clamping surface of the lower wedge-shaped plate, and anti-skid teeth 8 that are slidably connected with the slots are arranged in the slots, and the bottom of the anti-skid teeth is passed through a spring. 9 is connected with the bottom of the card slot. In the initial state, part of the anti-slip teeth is located in the slot, and a part is exposed outside the slot. During the process of clamping the carbon fiber plate, the anti-slip teeth are in close contact with the carbon fiber plate under the push of the spring force, which can increase friction and avoid Slip to further improve the anchoring effect.

As a further improvement of the above technical solution, the upper wedge-shaped plate and the lower wedge-shaped plate clamp the carbon fiber plate and cooperate with the wedge-shaped through-hole, and there is a gap 10 between the small-sized end of the wedge-shaped through-hole and the upper and lower wedge-shaped plates. The presence of energy further prevents the carbon fiber plate from being sheared.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (7)

1. a carbon beaverboard anchorage, it is characterized in that: comprise anchor slab (1) and intermediate plate group, be provided with in described anchor slab from anchor slab front end to the wedge shape through hole (2) that rear end cross-sectional area increases gradually, anchor slab front end is provided with curved surface (3), described intermediate plate group comprises clapboard (4) and lower clapboard (5), coordinate with wedge shape through hole after upper clapboard and lower wedge shape board clamping carbon fiber board, the clamping face of upper clapboard is wavy surface (41), the clamping face of lower clapboard is provided with groove (51).

2. carbon beaverboard anchorage according to claim 1, is characterized in that: the front end of described upper clapboard is provided with the arcwall face (6) be communicated with its clamping face, and the front end of described lower clapboard is also provided with the arcwall face be communicated with its clamping face.

3. carbon beaverboard anchorage according to claim 2, is characterized in that: the amplitude of described wavy surface projection increases to rear end gradually from upper clapboard front end.

4. carbon beaverboard anchorage according to claim 3, is characterized in that: described wavy surface and matching grooves.

5. the carbon beaverboard anchorage according to claim 1-4 any one, it is characterized in that: the clamping face of described lower clapboard is provided with multiple draw-in groove (7), be provided with the anti-slop serrations (8) be slidably connected with draw-in groove in described draw-in groove, be connected with bottom draw-in groove by spring (9) bottom described anti-slop serrations.

6. carbon beaverboard anchorage according to claim 5, is characterized in that: described anchor slab is made up of carbide alloy, and described upper clapboard and lower clapboard are made by soft alloy.

7. carbon beaverboard anchorage according to claim 6, is characterized in that: coordinate with wedge shape through hole after described upper clapboard and lower wedge shape board clamping carbon fiber board, all there is gap (10) between the small size end of wedge shape through hole and upper and lower clapboard.