CN217840580U - Mechanical clamping composite anchorage device suitable for carbon fiber cloth winding - Google Patents
Mechanical clamping composite anchorage device suitable for carbon fiber cloth winding Download PDFInfo
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- CN217840580U CN217840580U CN202221938128.9U CN202221938128U CN217840580U CN 217840580 U CN217840580 U CN 217840580U CN 202221938128 U CN202221938128 U CN 202221938128U CN 217840580 U CN217840580 U CN 217840580U
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- carbon fiber
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- fiber cloth
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Abstract
The utility model relates to a mechanical clamping composite anchorage device suitable for carbon fiber cloth winding, which comprises a bottom plate, a top plate, a winding shaft, carbon fiber cloth and fastening bolts, wherein the bottom plate is anchored on the outer surface of a structure, and the fastening bolts are arranged between the bottom plate and the top plate; the bottom plate and the top plate are both flat plates or curved plates, the bottom plate and the top plate are respectively provided with a semicircular groove, and a winding shaft is arranged between the two semicircular grooves; fastening bolts are also arranged between the two sides of the winding shaft and the bottom plate and the top plate, and a rectangular through groove is formed in the middle of the winding shaft; the front end of the carbon fiber cloth penetrates through the rectangular through groove to be wound on the winding shaft, and the rear end of the carbon fiber cloth is wound on the winding shaft, covers the front end of the carbon fiber cloth and extends along the radial direction of the winding shaft to penetrate between the bottom plate and the top plate; the bottom plate and the top plate are matched with each other to clamp the carbon fiber cloth to be fastened. The utility model discloses a method increase anchor power of increase winding axle, the superior performance, it is simple and convenient reliable, do benefit to installation and use.
Description
Technical Field
The utility model relates to a building structure consolidates technical field, especially relates to a be applicable to the compound ground tackle of winding mechanical clamping of carbon cloth.
Background
In recent years, carbon fiber materials are widely used in the fields of engineering reinforcement, maintenance and the like due to excellent properties such as light weight, high strength, corrosion resistance and the like. The process principle of carbon fiber reinforcement is as follows: carbon fibers with extremely high tensile strength are pre-impregnated with epoxy resin to form a composite reinforced material (unidirectional continuous fibers); the epoxy resin adhesive is adhered to the structure to be reinforced along the tensile direction or the direction perpendicular to the crack direction to form a new composite, so that the reinforcing adhesive material and the original reinforced concrete are stressed together to increase the stress performance of the structure, such as crack resistance, bending resistance and the like, and the strength, the rigidity, the crack resistance and the extensibility of the structure are improved.
A large number of existing research results and engineering applications show that the carbon fiber cloth is adopted for reinforcement, and some problems exist, wherein the more prominent problem is that the strength of the anchorage device is insufficient or the size of the anchorage device is too large. At present, the ground tackle on the market is various, utilizes the ground tackle with carbon cloth tip anchor on the structure thing, and wherein more common anchor has: flat anchorage devices, wave anchorage devices, wedge-shaped clamping piece anchorage devices and the like, and the anchorage modes and the application ranges of various anchorage devices are different.
The flat anchorage device can be additionally provided with pins to enhance the anchoring of the carbon fiber cloth except for clamping, but the anchoring performance is not ideal, stress concentration is easy to generate, and the carbon fiber cloth is damaged. The wave-shaped anchorage utilizes wave shapes to increase anchoring length and friction force on the principle of a flat plate anchorage. The wedge-shaped clamping piece anchorage device clamps the carbon fiber cloth through the compressive stress generated by restraining the wedge-shaped clamping piece by the outer box, is complex to assemble, and is easy to have the problems of stress concentration, clamping piece falling and the like. Therefore, in the field of structural reinforcement and maintenance, simple and reliable anchoring of carbon fiber cloth becomes a primary problem to be solved.
Disclosure of Invention
The utility model discloses a solve the inconvenient, not good problem of anchor performance of common ground tackle equipment, provide a be applicable to the compound ground tackle of winding mechanical clamping of carbon cloth, increased the extrusion force through the mode of winding, centre gripping, simple and convenient reliable, the anchor performance is better, is favorable to the installation and uses.
In order to achieve the above object, the utility model adopts the following technical scheme:
a mechanical clamping composite anchorage device suitable for carbon fiber cloth winding comprises a bottom plate, a top plate, a winding shaft, carbon fiber cloth and fastening bolts, wherein the bottom plate is anchored on the outer surface of a structure, the bottom plate is embedded in the structure in advance, the surface of the bottom plate is flush with the surface of the structure, and the fastening bolts are arranged between the bottom plate and the top plate for connection, so that the bottom plate, the top plate and the structure are tightly combined;
the bottom plate and the top plate are both flat plates or curved plates and can be selected according to the shape of the outer surface of the structure, the bottom plate and the top plate are respectively provided with a semicircular groove for placing a winding shaft, the two semicircular grooves are combined to be circular, and the cylindrical winding shaft is arranged between the two semicircular grooves;
fastening bolts are arranged between the two sides of the winding shaft and the bottom plate and the top plate for connection, a rectangular through groove is formed in the middle of the winding shaft, and the rectangular through grooves are distributed along the radial direction of the winding shaft;
the front end of the carbon fiber cloth passes through the rectangular through groove and is wound on the winding shaft, the rear end of the carbon fiber cloth is wound on the winding shaft, covers the front end of the carbon fiber cloth and extends along the radial direction of the winding shaft to penetrate between the bottom plate and the top plate, and the rear end of the carbon fiber cloth penetrates through the bottom plate and the top plate and is wound on the outer surface of the structure;
the bottom plate and the top plate are matched with each other to clamp the carbon fiber cloth to be fastened.
Furthermore, the upper plane of the bottom plate is provided with the semicircular groove, and the two sides of the semicircular groove and the upper plane of the bottom plate are in smooth transition in an arc shape through a fillet; the semicircular groove is arranged on the lower plane of the top plate, and fillets between two sides of the semicircular groove and the lower plane of the top plate are in smooth transition through arcs, so that the edges on two sides of the semicircular groove are prevented from damaging the carbon fiber cloth.
Furthermore, after the top plate and the bottom plate are vertically overlapped and arranged, the section of the connection combination of the two semicircular grooves is circular, and the semicircular grooves are matched with the winding shaft.
Furthermore, round holes are radially formed in two sides of the winding shaft, the rectangular through grooves are arranged between the two round holes, the direction of the round holes is perpendicular to that of the rectangular through grooves, and fastening bolts penetrate through the round holes and are connected with the bottom plate and the top plate at the same time, so that the winding shaft can be prevented from rotating.
Furthermore, bottom plate and roof are the flat board, and the bottom plate cross-sectional area is greater than the roof cross-sectional area, are provided with the chemistry crab-bolt between bottom plate and the structure in order to connect, and the structure surface is flat.
Furthermore, the bottom plate and the top plate are both curved plates, the cross sectional areas of the bottom plate and the top plate are the same, an embedded part is arranged between the bottom plate and the structure to be connected, and the outer surface of the structure is an arc-shaped surface.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model has the advantages of reasonable design, carbon cloth passes the rectangle and leads to the groove and twine at the winding epaxial, and the winding axle after the winding is accomplished is placed at the half slot of bottom plate, covers the roof afterwards, and the roof lock is epaxial at the winding, twists reverse nut to certain torque value, accomplishes carbon cloth's anchor promptly. The whole anchoring and mounting process of the carbon fiber cloth is simple, convenient and reliable, and is beneficial to mounting and use.
The utility model discloses at first adopt the method that comes winding carbon cloth that increases the winding axle to increase anchor power, easily carbon fiber tape's is fixed, and bottom plate and roof cooperation are pressed from both sides tightly simultaneously, are extruded carbon cloth and winding axle, improve the reliability of anchor effect, and the anchor performance is superior, also avoids causing the damage to carbon cloth, can realize the simple and convenient reliable anchor installation of carbon cloth, has the little advantage of ground tackle size simultaneously.
Drawings
Fig. 1 is a front view of the mechanical clamping composite anchorage device suitable for carbon fiber cloth winding of the present invention.
Fig. 2 is a schematic view of the split of the mechanical clamping composite anchorage device suitable for carbon fiber cloth winding of the utility model.
Fig. 3 is a top view of the mechanical clamping composite anchorage device suitable for carbon fiber cloth winding of the present invention.
Fig. 4 is a schematic view of a winding shaft of the mechanical clamping composite anchorage device suitable for carbon fiber cloth winding of the utility model.
Fig. 5 is a front view of a bottom plate of a midplane of an embodiment of the present invention of a mechanical clamping composite anchor suitable for carbon fiber cloth wrapping.
Fig. 6 is a top view of a bottom plate of a midplane of an embodiment of a mechanical clamping composite anchor suitable for carbon fiber cloth wrapping.
Fig. 7 is a front view of the bottom plate with curved surface in the second embodiment of the mechanical clamping composite anchorage device suitable for carbon fiber cloth winding of the present invention.
The reference numbers in the drawings are as follows: 1 is the bottom plate, 2 is the roof, and 3 are the winding axle, and 4 are carbon cloth, and 5 are fastening bolt, and 6 are the half slot, and 7 are the round hole, and 8 are the rectangle through groove, and 9 are the structure, and 10 are the chemical crab-bolt, and 11 are steel cylinder socket ring, and 12 are the built-in fitting.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:
the first embodiment is as follows:
as shown in fig. 1-6, a mechanical clamping composite anchor suitable for carbon fiber cloth winding comprises a bottom plate 1, a top plate 2, a winding shaft 3, carbon fiber cloth 4 and fastening bolts 5, wherein the bottom plate 1 is anchored on the outer surface of a structure 9, namely the bottom plate 1 needs to be pre-embedded in the structure 9 in advance, and the surface of the pre-embedded bottom plate 1 is flush with the surface of the structure 9.
And a fastening bolt 5 is arranged between the bottom plate 1 and the top plate 2, so that the bottom plate 1 and the top plate 2 are connected. The number of the fastening bolts 5 is four, and the four fastening bolts 5 are respectively arranged at the corner positions of the bottom plate 1 and the top plate 2.
The bottom plate 1 and the top plate 2 are both flat plates or curved plates, and the bottom plate 1 and the top plate 2 are respectively provided with a semicircular groove 6 for placing a winding shaft 3 wound with carbon fiber cloth 4.
Specifically, a semicircular groove 6 is arranged on the upper plane of the bottom plate 1, and fillets between two sides of the semicircular groove 6 and the upper plane of the bottom plate 1 are in smooth transition in an arc shape; half slot 6 is laid to the plane under the roof 2, and the fillet is with the smooth transition of circular arc under 6 both sides of half slot and the roof 2 between the plane, and the purpose of 6 both sides fillets of half slot is to avoid haring carbon cloth 4.
The two semicircular grooves 6 are combined to be circular, namely, the cross section of the connection combination of the two semicircular grooves 6 is circular after the top plate 2 and the bottom plate 1 are overlapped and arranged up and down. Set up cylindricly between two semicircular groove 6 winding axle 3, semicircular groove 6 and winding axle 3 looks adaptation.
In order to realize the connection of the winding shaft 3 with the bottom plate 1 and the top plate 2, fastening bolts 5 are also arranged between the two sides of the winding shaft 3 and the bottom plate 1 and the top plate 2 for connection. In order to facilitate the installation of the fastening bolt 5, round holes 7 are radially formed in two sides of the winding shaft 3, and the fastening bolt 5 penetrates through the round holes 7 and is simultaneously connected with the bottom plate 1 and the top plate 2. The number of the fastening bolts 5 on the winding shaft 3 is two, and the winding shaft 3 can be prevented from rotating under the action of external force under the action of the two fastening bolts 5.
The rectangular through groove 8 is formed in the middle of the winding shaft 3, the rectangular through groove 8 is formed between the two round holes 7, the rectangular through groove 8 is radially arranged along the winding shaft 3, and the rectangular through groove 8 is used for penetrating the carbon fiber cloth 4 as shown in fig. 4.
At bottom plate 1 and 2 cooperation centre gripping carbon cloth 4 of roof, the roof 2 suppression is at bottom plate 1 and 3 upper portions of winding axle, suppresses carbon cloth 4 simultaneously, realizes the fastening of 4 installations of carbon cloth.
As shown in fig. 5-6, in this embodiment, the outer surface of the structure 9 is a flat surface, the structure 9 is a reinforced concrete beam, and further the bottom plate 1 and the top plate 2 are both flat plates, the cross-sectional area of the bottom plate 1 is larger than that of the top plate 2, which is equivalent to widening and lengthening the bottom plate 1, thereby facilitating anchoring of the bottom plate 1 and the structure 9. Eight chemical anchor bolts 10 are arranged between the bottom plate 1 and the structure 9 for connection, and the eight chemical anchor bolts 10 are symmetrically distributed on the two side edges of the bottom plate 1.
The anchor mounting steps are as follows: and (3) slotting the structure 9 at the anchorage device mounting position by adopting a slotting machine, and punching, wherein the slotting depth is the thickness of the bottom plate 1, the implantation of the chemical anchor bolt 10 is completed after hole cleaning, then the fixation of the bottom plate 1 is completed, and meanwhile, the six fastening bolts 5 are connected with the bottom plate 1.
Winding carbon cloth 4 on winding axle 3, winding axle 3 is placed in half slot 6 of bottom plate 1, covers roof 2, screws up fastening bolt 5's nut to certain torque value, accomplishes the installation of ground tackle promptly. Wherein, four fastening bolts 5 at the edge of the bottom plate 1 are connected with the bottom plate 1 and the top plate 2, and two fastening bolts 5 on the winding shaft 3 are used for fixing the winding shaft 3.
The surface of the structure 9, which is attached to the carbon fiber cloth 4, is polished to be smooth by a polisher, the carbon fiber cloth 4 is wiped clean by alcohol, and the surface of the carbon fiber cloth 4 is coated with the bonding glue of the carbon fiber cloth 4 and then is attached to the structure 9, so that the reinforcement construction of the carbon fiber cloth 4 is realized.
Example two:
this embodiment is substantially the same as the first embodiment, and the same parts are not described again, except that: this embodiment can be used to the production of prestressing force steel cylinder concrete pipe, adopts carbon cloth 4 to replace the steel wire, can avoid destruction such as steel wire corrosion and hydrogen brittle fracture to take place.
As shown in fig. 7, in this embodiment, the outer surface of the structure 9 is an arc surface, the structure 9 is a steel cylinder, and further, the bottom plate 1 and the top plate 2 are both curved plates, and the cross-sectional areas of the bottom plate 1 and the top plate 2 are the same. The steel cylinder bell-mouthed ring 11 is arranged in the structure 9, the embedded part 12 is arranged between the bottom plate 1 and the structure 9 to be connected, the bottom plate 1 and the steel cylinder bell-mouthed ring 11 are welded and fixed through the embedded part 12 in advance, namely one end of the embedded part 12 is welded on the steel cylinder bell-mouthed ring 11, and the other end of the embedded part 12 is welded on the bottom plate 1.
The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, characteristics and principles of the present invention should be included in the claims of the present invention.
Claims (6)
1. A mechanical clamping composite anchorage device suitable for carbon fiber cloth winding comprises a bottom plate (1), a top plate (2), a winding shaft (3), carbon fiber cloth (4) and fastening bolts (5), and is characterized in that the bottom plate (1) is anchored on the outer surface of a structure (9), the surface of the bottom plate (1) and the surface of the structure (9) are kept flush, and the fastening bolts (5) are arranged between the bottom plate (1) and the top plate (2) for connection;
the bottom plate (1) and the top plate (2) are both flat plates or curved plates, the bottom plate (1) and the top plate (2) are respectively provided with a semicircular groove (6), the two semicircular grooves (6) are combined to be circular, and the cylindrical winding shaft (3) is arranged between the two semicircular grooves (6);
fastening bolts (5) are arranged between the two sides of the winding shaft (3) and the bottom plate (1) and the top plate (2) for connection, a rectangular through groove (8) is formed in the middle of the winding shaft (3), and the rectangular through grooves (8) are radially distributed along the winding shaft (3);
the front end of the carbon fiber cloth (4) penetrates through the rectangular through groove (8) and is wound on the winding shaft (3), the rear end of the carbon fiber cloth (4) is wound on the winding shaft (3), covers the front end of the carbon fiber cloth (4), radially extends along the winding shaft (3) and penetrates between the bottom plate (1) and the top plate (2), and the rear end of the carbon fiber cloth (4) penetrates through the bottom plate (1) and the top plate (2) and then is wound on the outer surface of a structure (9);
the bottom plate (1) and the top plate (2) are matched with each other to clamp the carbon fiber cloth (4) for fastening.
2. The mechanical clamping composite anchorage device suitable for carbon fiber cloth winding is characterized in that the semicircular groove (6) is arranged on the upper plane of the bottom plate (1), and the two sides of the semicircular groove (6) and the upper plane of the bottom plate (1) are in smooth transition in an arc shape through rounding off;
the lower plane of the top plate (2) is provided with the semicircular groove (6), and the two sides of the semicircular groove (6) and the lower plane of the top plate (2) are in smooth transition with an arc.
3. The mechanical clamping composite anchorage device suitable for carbon fiber cloth winding according to claim 1, wherein the top plate (2) and the bottom plate (1) are arranged in an up-and-down overlapping manner, the connecting and combining section of the two semicircular grooves (6) is circular, and the semicircular grooves (6) are matched with the winding shaft (3).
4. The mechanical clamping composite anchorage device suitable for carbon fiber cloth winding according to claim 1, wherein round holes (7) are radially formed in two sides of the winding shaft (3), the rectangular through groove (8) is arranged between the two round holes (7), and the fastening bolt (5) penetrates through the round holes (7) and is connected with the bottom plate (1) and the top plate (2) simultaneously.
5. The mechanical clamping composite anchorage device suitable for carbon fiber cloth winding according to claim 1, wherein the bottom plate (1) and the top plate (2) are both flat plates, the cross-sectional area of the bottom plate (1) is larger than that of the top plate (2), a chemical anchor bolt (10) is arranged between the bottom plate (1) and the structure (9) for connection, and the outer surface of the structure (9) is a flat surface.
6. The mechanical clamping composite anchorage device suitable for carbon fiber cloth winding according to claim 1, wherein the bottom plate (1) and the top plate (2) are both curved plates, the cross-sectional areas of the bottom plate (1) and the top plate (2) are the same, an embedded part (12) is arranged between the bottom plate (1) and a structure (9) for connection, and the outer surface of the structure (9) is an arc-shaped surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221938128.9U CN217840580U (en) | 2022-07-26 | 2022-07-26 | Mechanical clamping composite anchorage device suitable for carbon fiber cloth winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221938128.9U CN217840580U (en) | 2022-07-26 | 2022-07-26 | Mechanical clamping composite anchorage device suitable for carbon fiber cloth winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217840580U true CN217840580U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221938128.9U Active CN217840580U (en) | 2022-07-26 | 2022-07-26 | Mechanical clamping composite anchorage device suitable for carbon fiber cloth winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217840580U (en) |
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2022
- 2022-07-26 CN CN202221938128.9U patent/CN217840580U/en active Active
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