CN218643683U - Prestressed carbon fiber cable tensioning device - Google Patents

Abstract

The utility model discloses a prestressing force carbon fiber cable tensioning equipment belongs to prestressing force carbon fiber cable stretch-draw technical field. It is including being used for connecting the stiff end and the stretch-draw end at carbon fiber cable both ends respectively, the stretch-draw end includes: two parallel lead screws; the connecting rod is fixedly connected between the two screw rods; the counter-force block is fixedly connected between the two screw rods; the first anchorage device is arranged between the joint and the reaction block and is used for being fixedly connected with a component to be reinforced; and one end of the jack is fixedly connected with the counter-force block, the other end of the jack is abutted against the first anchorage device and can apply acting force to the first anchorage device, and the tensile end is driven to integrally move along the direction far away from the fixed end through the counter-acting force acting on the counter-force block so as to complete the tensioning of the carbon fiber cable. The utility model discloses a prestressing force carbon fiber cable tensioning equipment through optimizing ground tackle structure, has reduced the volume that ground tackle occupy, makes ground tackle structure more light simultaneously, and is more simple and convenient during the use.

Description

Prestressed carbon fiber cable tensioning device

Technical Field

The utility model belongs to the technical field of prestressing force carbon fiber cable stretch-draw, more specifically say, relate to a prestressing force carbon fiber cable tensioning equipment.

Background

The steel strand is usually adopted as a reinforcement in the traditional civil engineering, but steel is used as a metal material, so that the phenomenon of metal corrosion cannot be avoided, the cross section loss is caused by corrosion, the bearing capacity is reduced, and the potential safety hazard is caused to the structure. To solve this problem, researchers have adopted methods such as surface brush coating and cathodic protection, but none of them can substantially avoid corrosion of steel.

Carbon fiber materials have good corrosion resistance and are increasingly used in recent years. The prestress carbon fiber plate reinforcement is a new favorite for in-vitro prestress reinforcement due to the advantages of active reinforcement, good corrosion resistance and the like. However, the prestressed carbon fiber plate has the characteristics of large corresponding anchorage device size, complex tensioning process, poor bearing capacity outside the plane of the carbon fiber plate which is a plane material, and the like, and the application of the carbon fiber plate is also limited.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

The ground tackle size that the prestressing force carbon fiber board that exists corresponds among the prior art is great, the loaded down with trivial details problem of stretch-draw process, the utility model provides a prestressing force carbon fiber cable tensioning equipment through optimizing the ground tackle structure, reduces the volume that ground tackle occupy, makes ground tackle structure more light simultaneously, and is more simple and convenient during the use.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

Prestressing force carbon fiber cable tensioning equipment is including being used for connecting the stiff end and the stretch-draw end at carbon fiber cable both ends respectively, the stretch-draw end includes:

two parallel lead screws;

the connecting rod is fixedly connected between the two screw rods; the connecting rod is respectively connected with the two screw rods through two joints;

the counter-force block is fixedly connected between the two screw rods and is opposite to the connecting rod;

the first anchorage device is arranged between the joint and the reaction block and is used for being fixedly connected with a component to be reinforced; and

the jack, jack one end fixed connection counter-force piece, the other end withstands first ground tackle and can exert the effort to first ground tackle, drives the whole direction removal of keeping away from the stiff end of tensioning end through the counter-force that acts on counter-force piece to accomplish the stretch-draw of carbon fiber cable.

Preferably, the securing end includes a second anchor, the second anchor including:

a second body;

the first connecting hole extends from one end of the second body;

a second connection hole extending from the other end of the second body, the second connection hole facing the first connection hole; and

and the first pin shaft penetrates between the first connecting hole and the second connecting hole and is used for being connected with a lock head at one end of the carbon fiber cable.

Preferably, the first anchor comprises:

a first body;

the connecting plate extends out of the side edge of the first body, and two threaded holes are formed in the connecting plate; and

and the reinforcing plate is vertical to and abutted against the connecting plate.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model discloses a prestressing force carbon fiber cable tensioning equipment, structurally, tensioning equipment has wholly abandoned conventional stretch-draw anchor and splint isotructure, has kept two lead screws and jack, counter-force piece, has increased first ground tackle and a joint, because first ground tackle and joint are located the inside of whole tensioning equipment, has reduced the volume that the device occupy on the whole; meanwhile, the carbon fiber cable is not directly connected with the anchorage device any longer, but is connected with the tensioning end in a joint mode, so that the first anchorage device only serves as a connecting piece in function, and the tensioning is more convenient;

(2) When the prestressed carbon fiber cable tensioning device is used, for the carbon fiber cable, two ends of the carbon fiber cable only need to be connected with the first pin shaft and the second pin shaft respectively, so that a plurality of carbon fiber cables can be connected in parallel when the prestressed carbon fiber cable tensioning device is used, the tensioning of the plurality of carbon fiber cables can be realized by adopting one set of prestressed carbon fiber cable tensioning device, and the use is simpler and more convenient;

(3) The utility model discloses simple structure, reasonable in design easily makes.

Drawings

Fig. 1 is a schematic structural diagram of a prestressed carbon fiber cable tensioning device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a fixed end structure;

FIG. 3 is a schematic view of a structure of a tension end;

FIG. 4 is a schematic view of a second anchor configuration;

FIG. 5 is a schematic view of a joint structure;

FIG. 6 is a schematic view of the first and second mold halves;

in the figure: 100. a fixed end; 110. a second body; 111. a first connection hole; 112. a second connection hole; 120. a first pin shaft; 200. stretching the end; 210. a screw rod; 220. a connecting rod; 221. a first mold half; 222. a second mold half; 230. a counter-force block; 240. a first anchor; 241. a first body; 242. a connecting plate; 243. a reinforcing plate; 250. a jack; 260. and (4) a joint.

Detailed Description

The invention will be further described with reference to specific embodiments and drawings.

Referring to fig. 1 to 6, the present embodiment provides a prestressed carbon fiber cable tensioning device, which includes a fixed end 100 and a tensioning end 200 respectively used for connecting two ends of a carbon fiber cable. The fixed end 100 and the tensioning end 200 are also the fixed end anchorage and the tensioning end 200 anchorage, and when the two anchorages are used, the fixed end 100 and the tensioning end 200 are firstly fixed on the bottom surface of a member to be reinforced, such as a beam, through the bolts, then the fixed end 100 or the fixed end 100 anchorage fixes one end of the carbon fiber cable, and through the tensioning end 200 or the tensioning end anchorage, the other end of the carbon fiber cable is tensioned, so that tensioning of the prestressed carbon fiber cable is completed.

The fixing end 100 or the fixing end anchor may include a second anchor, and the second anchor may be detachably connected to the carbon fiber cable by one of a screw connection, an adhesion, a snap fit, and an interference fit, so as to fix one end of the carbon fiber cable. In a preferred embodiment, the second anchor comprises a second body 110, a first connection hole 111 extending from one end of the second body 110, a second connection hole 112 extending from the other end of the second body 110, and a first pin 120 inserted between the first connection hole 111 and the second connection hole 112, wherein the second connection hole 112 is opposite to the first connection hole 111, and the first pin 120 is used for connecting with a lock head at one end of the carbon fiber cable. Because the carbon fiber cable is connected with the second anchorage device through the first pin shaft 120, structures such as clamping pieces are not needed, pre-tightening is not needed during use, and the tensioning success rate is greatly improved.

The stretching end 200 or the stretching end anchor comprises two parallel screws 210, a connecting rod 220, a reaction block 230, a first anchor 240 and a jack 250. The connecting rod 220 is fixedly connected between the two screw rods 210, and the connecting rod is respectively connected with the two screw rods 210 through two joints 260; the reaction block 230 is fixedly connected between the two lead screws 210 and opposite to the connecting rod 220, and the first anchor 240 is arranged between the connecting rod 220 and the reaction block 230 and is used for being fixedly connected with a member to be reinforced. In a preferred embodiment, the first anchorage device 240 is provided with a plurality of anchoring holes, and the first anchorage device is fixed to the member to be reinforced by anchor bolts inserted into the anchoring holes.

One end of the jack 250 is fixedly connected with the reaction block 230, the other end of the jack props against the first anchorage 240 and can apply acting force to the first anchorage 240, and the tensile end is driven to integrally move along the direction far away from the fixed end through the acting force acting on the reaction block 230 so as to complete the tension of the carbon fiber cable.

The conventional tensioning end anchorage generally comprises a tensioning anchor and a clamping plate, and when the carbon fiber cable is used, the carbon fiber cable is inserted into the tensioning anchor and is fixed by the upper clamping plate and the lower clamping plate. In the embodiment, the conventional tensioning anchor, clamping plate and other structures are omitted from the structural tensioning device, the two screw rods 210, the jack 250 and the reaction block 230 are reserved, the first anchor 240 and the connecting rod 220 are added, and the first anchor 240 and the connecting rod 220 are positioned in the whole tensioning device, so that the volume occupied by the device is reduced in the whole view; meanwhile, since the carbon fiber cable is not directly connected to the anchorage device, but is connected to the tensioning end 200 by means of the connection rod 220, the first anchorage device 240 functions as a connection member, and tensioning is more convenient.

Preferably, first anchor 240 includes a first body 241, a connecting plate 242, and a reinforcing plate 243. The connecting plate 242 extends out from the side of the first body 241, and two threaded holes are formed in the connecting plate 242, so that the two screw rods 210 can pass through the two threaded holes to complete the fixed connection between the first anchor 240 and the screw rods 210; the reinforcing plate 243 is perpendicular to and abuts against the connecting plate 242 to reinforce the structural strength of the first anchor 240.

Preferably, the connecting rod 220 includes a first mold half 221 and a second mold half 222, and the first mold half 221 and the second mold half 222 may be detachably connected to each other to define a hollow cavity. Thus, the connecting rod 220 is convenient to disassemble and assemble as a whole.

Preferably, a plurality of through holes 225 are formed in the first mold half 221 and the second mold half 222, and a locking head at the other end of the carbon fiber cable passes through the through holes 225 to be fixedly connected with the first mold half 221 and the second mold half 222. When the carbon fiber cable tensioning device is used, a plurality of carbon fiber cables can be connected in parallel, and then the carbon fiber cables can be tensioned by one set of prestressed carbon fiber cable tensioning device, so that the carbon fiber cable tensioning device is simpler and more convenient to use.

Furthermore, the prestressed carbon fiber cable tensioning device further comprises two joints 260, and the connecting rod is respectively connected with the two screws through the two joints. Illustratively, the connector has two vertical but non-intercommunicating threaded holes, and one end of the screw rod 210 can extend into one of the threaded holes to connect with the connector 260; a second pin shaft may be disposed in the hollow cavity of the connecting rod 220, and two ends of the second pin shaft extend into another threaded hole respectively to be connected with the connector 260.

When the prestressed carbon fiber cable tensioning device is used for tensioning the carbon fiber cable, a user can firstly position and pay off according to design requirements, process a base layer, install the fixed end 100 anchorage device and the first anchorage device 240 after finishing the positioning and paying off, and fix the fixed end 100 anchorage device and the first anchorage device 240 by using a chemical anchor bolt;

then a screw rod 210 and a reaction block 230 are sequentially arranged on the side of the stretching end 200, and a connecting rod 220 is screwed at the front end of the screw rod 210; then aligning the preformed carbon fiber cable lock with the first pin shaft 120 on the anchor of the fixed end 100 and the second pin shaft on the connecting rod 220 respectively; then, a jack 250 is arranged between the first anchorage device and the reaction block 230, protection is well done, and pretensioning is started; after the error is confirmed, performing formal tensioning, so that when the jack 250 outputs an acting force to the outside, the jack 250 can prop against the first anchor 240 and pull the reaction block 230 to drive the connecting rod 220 and the two lead screws 210 to move and tension integrally along the direction facing the reaction block 230; after the completion, the screw rod 210 is fixed by using a nut, the jack 250 is removed, and the redundant screw rod 210 is cut off.

The utility model discloses the example is only right the preferred embodiment of the utility model describes, and is not right the utility model discloses think about and the scope is injectd, not deviating from the utility model discloses under the prerequisite of design thought, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.

Claims (3)

1. Prestressing force carbon fiber cable tensioning equipment is including being used for connecting the stiff end at carbon fiber cable both ends and stretch-draw end, its characterized in that respectively: the tensioning end comprises:

two parallel lead screws;

the connecting rod is fixedly connected between the two screw rods; the connecting rod is respectively connected with the two screw rods through two joints;

the counter-force block is fixedly connected between the two screw rods and is opposite to the connecting rod;

the first anchorage device is arranged between the joint and the reaction block and is used for being fixedly connected with a component to be reinforced; and

the jack, jack one end fixed connection counter-force piece, the other end withstands first ground tackle and can exert the effort to first ground tackle, drives the whole direction removal of keeping away from the stiff end of tensioning end through the counter-force that acts on counter-force piece to accomplish the stretch-draw of carbon fiber cable.

2. The prestressed carbon fiber cable tension device according to claim 1, wherein: the fixed end includes a second anchor, the second anchor including:

a second body;

the first connecting hole extends from one end of the second body;

a second connection hole extending from the other end of the second body, the second connection hole facing the first connection hole; and

and the first pin shaft penetrates between the first connecting hole and the second connecting hole and is used for being connected with a lock head at one end of the carbon fiber cable.

3. The prestressed carbon fiber cable tension device according to claim 1, wherein: the first anchor comprises:

a first body;

the connecting plate extends out of the side edge of the first body, and two threaded holes are formed in the connecting plate; and

and the reinforcing plate is vertical to and abutted against the connecting plate.

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