CN220620724U - Prestressing force carbon fiber preloading device - Google Patents
Prestressing force carbon fiber preloading device Download PDFInfo
- Publication number
- CN220620724U CN220620724U CN202322196233.0U CN202322196233U CN220620724U CN 220620724 U CN220620724 U CN 220620724U CN 202322196233 U CN202322196233 U CN 202322196233U CN 220620724 U CN220620724 U CN 220620724U
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- rear baffle
- jack
- anchor block
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 52
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 52
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- Inorganic Fibers (AREA)
Abstract
The utility model discloses a prestress carbon fiber pretensioning device, which comprises a front stop block, a rear baffle, two screws arranged in parallel, a lock nut arranged on the screws and a jack, wherein the front stop block is arranged on the rear baffle; one end of the screw rod is fixed on the front stop block, and the other end of the screw rod passes through the through hole on the rear baffle plate and is then screwed on the lock nut; be provided with the standing groove that is used for placing the anchor block on the positive stop, the one end of anchor block is for being used for clamping piece male first end, and the other end is for being used for carbon fiber material body male second end, the first end of anchor block is oriented the backplate is placed, and the second end of anchor block is propped on the preceding lateral wall of standing groove be provided with on the preceding lateral wall and be used for the carbon fiber material body passes logical groove. By adopting the technical scheme, the prestress carbon fiber pretensioning device can adjust the distance between the rear baffle and the front stop block by adjusting the position of the locking nut on the screw rod, so that the prestress carbon fiber pretensioning device can adapt to anchor blocks and jacks with different specifications and lengths.
Description
Technical Field
The utility model relates to a prestress carbon fiber pretensioning device, and belongs to the technical field of construction engineering.
Background
The prestress carbon fiber anchoring device generally comprises an anchor seat, an anchor block and a carbon fiber material body, wherein the carbon fiber material body can be a carbon fiber plate or a carbon fiber rib (rope), the end part of the carbon fiber material body is connected in the anchor block, the anchor block is connected to the anchor seat, and prestress tensioning is realized on the carbon fiber material body through a jack and the like. The wedge-shaped clamping pieces are arranged in the anchor blocks and clamp the carbon fiber material body, and when the carbon fiber material body is tensioned, the clamping pieces can be pulled to move in the anchor blocks, and the clamping pieces are wedge-shaped, so that the carbon fiber material body can be further clamped. For example, a prestress tensioning device with a novel tensioning cable mounting structure is disclosed in chinese patent CN207862789U, and a prestress carbon fiber tensioning device is disclosed in chinese patent CN 209923796U. When installing the carbon fiber material body in to the anchor block, pass the wedge groove with the carbon fiber material body earlier generally, insert the wedge groove after will stretching the cable centre gripping through wedge clamping piece, then strike the clamping piece to the inboard at the use hammer and carry out the preinstallation in order to guarantee that the carbon fiber material body receives sufficient clamping force, avoid the carbon fiber material body to break away from in the anchor block when beginning tensile, and this kind of mode of using the hammer to strike is very inconvenient, and degree of automation is not high, and efficiency is lower. Therefore, chinese patent document CN209923795U provides an anchor block press provided with a base having a receiving groove, an anchor block and a jack are placed in the receiving groove, and a clamping piece protruding from an end of the anchor block is pressed by the jack, thereby pre-tightening the clamping piece on the carbon fiber material body is achieved. However, the anchor block pressing device with the structure has poor adaptability to anchor blocks with different lengths or jacks with different lengths due to the constant size of the base, for example, certain types of anchor blocks are longer or the jacks are longer, and cannot be placed into the accommodating groove for pre-tightening.
Disclosure of Invention
Therefore, the utility model aims to provide the prestress carbon fiber rib pre-tightening device which can adapt to anchor blocks and jacks with different lengths.
In order to achieve the aim, the prestress carbon fiber pretensioning device comprises a front stop block, a rear baffle, two screws arranged in parallel, a lock nut arranged on the screws and a jack; one end of the screw rod is fixed on the front stop block, and the other end of the screw rod passes through the through hole on the rear baffle plate and is then screwed on the lock nut; the front stop block is provided with a placing groove for placing an anchor block, one end of the anchor block is a first end for inserting a clamping piece, the other end of the anchor block is a second end for inserting a carbon fiber material body, the first end of the anchor block faces to the rear baffle plate and is propped against the front side wall of the placing groove, and the front side wall is provided with a through groove for the carbon fiber material body to pass through; one end of the jack is propped against the rear baffle plate, and the other end of the jack is propped against the clamping piece protruding out of the first end.
And a middle limiting plate is further arranged between the front stop block and the rear baffle plate, and two first guide holes for the screw rod to pass through and two second guide holes for the anchor block to pass through are arranged on the middle limiting plate.
The prestress carbon fiber pre-tightening device further comprises an adjusting device used for supporting and adjusting the height of the jack.
The adjusting device comprises two wedge-shaped blocks which are oppositely arranged at the left side and the right side of the lower part of the jack.
The carbon fiber material body comprises a carbon fiber plate or a carbon fiber rib.
By adopting the technical scheme, the prestress carbon fiber pre-tightening device has the following beneficial effects compared with the prior art:
1. the distance between the rear baffle and the front stop block can be adjusted by adjusting the position of the lock nut on the screw rod, so that the screw rod can adapt to anchor blocks and jacks with different specifications and lengths;
2. the front stop block is provided with a placing groove, so that the anchor block can be accurately placed;
3. the middle limiting plate can effectively limit the deviation of the anchor block in the tensioning process;
4. the wedge block can be moved left and right to adjust the height of the jack, so that the collineation of the center of the jack and the center line of the anchor is ensured, and the eccentric problem of the jack in the tensioning process is reduced to the greatest extent.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an exploded view of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1 and 2, the prestress carbon fiber pretensioning device comprises a front stop block 1, a rear baffle 2, two screws 3 arranged in parallel, a locking nut 4 arranged on the screws 3, a jack 5 and a middle limiting plate 6.
Two screw holes 11 are formed in the front stop block 1, one ends of the two screw rods 3 are fixedly connected into the screw holes 11 in a threaded mode, and the other ends of the screw rods 3 sequentially penetrate through the first guide holes 61 in the middle limiting plate 6 and the through holes 21 in the rear baffle plate 2 and then are connected with the lock nuts 4 in a threaded mode.
The front stop block 1 is provided with a placing groove 12 for placing the anchor block 7, one end of the anchor block 7 is a first end 7a for inserting the clamping piece 8, the other end of the anchor block 7 is a second end 7b for inserting the carbon fiber material body 10, the first end 7a of the anchor block 7 is placed towards the rear baffle 2, the second end 7b of the anchor block 7 is propped against the front side wall of the placing groove 12, and the front side wall is provided with a through groove 13 for allowing the carbon fiber material body 10 to pass through. The middle limiting plate 6 is further provided with a second guide hole 62, and the anchor passes through the second guide hole 62. One end of the jack 5 is propped against the rear baffle 2, and the other end is propped against a clamping piece 8 protruding from the first end 7 a.
The prestress carbon fiber pre-tightening device further comprises an adjusting device for supporting and adjusting the height of the jack, and the adjusting device comprises two wedge-shaped blocks 9 which are oppositely arranged on the left side and the right side of the lower portion of the jack 5.
In this embodiment, the carbon fiber material body 10 is a carbon fiber rib, but in other embodiments, the carbon fiber material body may be a carbon fiber plate.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (5)
1. The utility model provides a prestressing force carbon fiber preloading device which characterized in that: the device comprises a front stop block, a rear baffle, two screws arranged in parallel, a lock nut arranged on the screws and a jack; one end of the screw rod is fixed on the front stop block, and the other end of the screw rod passes through the through hole on the rear baffle plate and is then screwed on the lock nut; the front stop block is provided with a placing groove for placing an anchor block, one end of the anchor block is a first end for inserting a clamping piece, the other end of the anchor block is a second end for inserting a carbon fiber material body, the first end of the anchor block faces to the rear baffle plate and is propped against the front side wall of the placing groove, and the front side wall is provided with a through groove for the carbon fiber material body to pass through; one end of the jack is propped against the rear baffle plate, and the other end of the jack is propped against the clamping piece protruding out of the first end.
2. The pre-stressed carbon fiber pre-tightening device of claim 1, wherein: and a middle limiting plate is further arranged between the front stop block and the rear baffle plate, and two first guide holes for the screw rod to pass through and two second guide holes for the anchor block to pass through are arranged on the middle limiting plate.
3. The pre-stressed carbon fiber pre-tightening device of claim 1, wherein: the prestress carbon fiber pre-tightening device further comprises an adjusting device used for supporting and adjusting the height of the jack.
4. A pre-stressed carbon fiber pre-stressing apparatus as in claim 3, wherein: the adjusting device comprises two wedge-shaped blocks which are oppositely arranged at the left side and the right side of the lower part of the jack.
5. The pre-stressed carbon fiber pre-tightening device of any one of claims 1-4, wherein: the carbon fiber material body comprises a carbon fiber plate or a carbon fiber rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322196233.0U CN220620724U (en) | 2023-08-15 | 2023-08-15 | Prestressing force carbon fiber preloading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322196233.0U CN220620724U (en) | 2023-08-15 | 2023-08-15 | Prestressing force carbon fiber preloading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220620724U true CN220620724U (en) | 2024-03-19 |
Family
ID=90222672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322196233.0U Active CN220620724U (en) | 2023-08-15 | 2023-08-15 | Prestressing force carbon fiber preloading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220620724U (en) |
-
2023
- 2023-08-15 CN CN202322196233.0U patent/CN220620724U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |