CN220568562U - Unbonded steel strand tensile strength detection device - Google Patents
Unbonded steel strand tensile strength detection device Download PDFInfo
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- CN220568562U CN220568562U CN202322349764.9U CN202322349764U CN220568562U CN 220568562 U CN220568562 U CN 220568562U CN 202322349764 U CN202322349764 U CN 202322349764U CN 220568562 U CN220568562 U CN 220568562U
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- steel strand
- tensile strength
- unbonded
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 63
- 239000010959 steel Substances 0.000 title claims abstract description 63
- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 9
- 238000004804 winding Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009864 tensile test Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to a non-adhesive steel strand tensile strength detection device which comprises a detection box, wherein a movable groove is formed in the detection box, a screw rod is movably arranged in the movable groove, a motor is fixedly arranged at the inner bottom of the detection box, a movable block is connected with the outer threads of the screw rod, an electric telescopic rod is fixedly arranged in the detection box, a pressure sensor is fixedly arranged at the bottom of the electric telescopic rod, and a pressing plate is fixedly arranged at the bottom of the pressure sensor. This unbonded steel strand wires tensile strength detection device twines to the fixed axle along the spacing groove through the end to the steel strand wires, through rotating two-way threaded rod, can drive splint to be close to the fixed axle through the thread block to carry out the centre gripping to the fixed axle, fix the end of steel strand wires through splint, can strengthen the winding force of end and fixed axle of steel strand wires through the spacing groove, the end that prevents the steel strand wires that can be better takes place not hard up at the in-process of pulling.
Description
Technical Field
The utility model relates to the technical field of unbonded steel strands, in particular to a device for detecting tensile strength of an unbonded steel strand.
Background
The unbonded steel strand is a novel unbonded steel strand between the unbonded steel strand and the bonded steel strand, namely, the novel prestress technology has the advantages of no influence on the free wire arrangement of the bonded steel strand, convenient use, no need of setting and grouting through a pore canal and the characteristics and safety of the bonded steel strand in the later use.
When the existing tensile strength testing device is used for carrying out tensile testing on unbonded steel strands, the ends of the steel strands are loosened when the steel strands are pulled in a fixed mode through clamping the ends, the tightness of the steel strands cannot be kept, and the detection result is easily affected, so that the unbonded steel strand tensile strength testing device is provided for solving the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a non-bonding steel strand tensile strength detection device which has the advantages of keeping the tension of the steel strand and the like, and solves the problems that the conventional tensile strength detection device usually clamps the ends of the steel strand when the non-bonding steel strand is subjected to tensile test, the ends of the steel strand are easy to loosen when being pulled, the tension of the steel strand cannot be kept, and the detection result is easy to influence.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the unbonded steel strand tensile strength detection device comprises a detection box, wherein a moving device is arranged in the detection box, and a limiting device is arranged in the detection box;
the mobile device comprises a movable groove, a screw rod, a motor, a movable block, an electric telescopic rod, a pressure sensor and a pressing plate, wherein the movable groove is formed in the detection box, the screw rod is movably installed in the movable groove, the motor is fixedly installed at the inner bottom of the detection box, the movable block is connected with the screw rod through external threads, the electric telescopic rod is fixedly installed in the detection box, the pressure sensor is fixedly installed at the bottom of the electric telescopic rod, and the pressing plate is fixedly installed at the bottom of the pressure sensor;
the limiting device comprises a fixed box, a bidirectional threaded rod, a threaded block, a fixed rod, a clamping plate, a fixed shaft and a limiting groove, wherein the fixed box is arranged in the detection box, the bidirectional threaded rod is movably arranged in the fixed box, the threaded block is connected with the external thread of the bidirectional threaded rod, the fixed rod is fixedly arranged in the fixed box, the clamping plate is fixedly arranged outside the threaded block, the fixed shaft is fixedly arranged outside the fixed box, and the limiting groove is formed in the outer portion of the fixed shaft.
Further, an output shaft of the motor penetrates through the movable groove and is fixedly connected with the screw rod.
Further, the number of the fixed boxes is two, one fixed box is located on the inner left wall of the detection box, and the other fixed box is fixedly connected with the movable block.
Further, the top of the two-way threaded rod penetrates through the fixed box and extends to the outside of the fixed box, and the number of the fixed boxes is two.
Further, the number of the fixing shafts is two, and the two fixing shafts are respectively positioned on the opposite sides of the two fixing boxes.
Further, the number of the clamping plates is four, and the four clamping plates are respectively positioned on the upper side and the lower side of the two fixing shafts.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
1. this unbonded steel strand wires tensile strength detection device twines to the fixed axle along the spacing groove through the end to the steel strand wires, through rotating two-way threaded rod, can drive splint to be close to the fixed axle through the thread block to carry out the centre gripping to the fixed axle, fix the end of steel strand wires through splint, can strengthen the winding force of end and fixed axle of steel strand wires through the spacing groove, the end that prevents the steel strand wires that can be better takes place not hard up at the in-process of pulling.
2. This unbonded steel strand wires tensile strength detection device drives the lead screw through opening the motor and rotates, drives one of them fixed box through the movable block and removes to the removal through one of them fixed box drives the steel strand wires and pulls, through opening electric telescopic handle, and drive pressure sensor and clamp plate decline, until after clamp plate and steel strand wires contact, through electric telescopic handle's continuous decline, can obtain the tensile strength of steel strand wires according to pressure sensor's pressure data.
Drawings
FIG. 1 is a perspective view of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the structure of the present utility model;
fig. 3 is an enlarged view of fig. 2 a in accordance with the present utility model.
In the figure: 1. a detection box; 2. a mobile device; 201. a movable groove; 202. a screw rod; 203. a motor; 204. a movable block; 205. an electric telescopic rod; 206. a pressure sensor; 207. a pressing plate; 3. a limiting device; 301. a fixed box; 302. a two-way threaded rod; 303. a screw block; 304. a fixed rod; 305. a clamping plate; 306. a fixed shaft; 307. and a limit groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, an unbonded steel strand tensile strength detection device in this embodiment includes a detection box 1, a moving device 2 is disposed in the detection box 1, and a limiting device 3 is disposed in the detection box 1.
The moving device 2 comprises a movable groove 201, a screw rod 202, a motor 203, a movable block 204, an electric telescopic rod 205, a pressure sensor 206 and a pressing plate 207, wherein the movable groove 201 is formed in the detecting box 1, the screw rod 202 is movably installed in the movable groove 201, the motor 203 is fixedly installed at the inner bottom of the detecting box 1, the movable block 204 is connected with the screw rod 202 through external threads, the electric telescopic rod 205 is fixedly installed in the detecting box 1, the pressure sensor 206 is fixedly installed at the bottom of the electric telescopic rod 205, and the pressing plate 207 is fixedly installed at the bottom of the pressure sensor 206.
The limiting device 3 comprises a fixed box 301, a bidirectional threaded rod 302, a threaded block 303, a fixed rod 304, a clamping plate 305, a fixed shaft 306 and a limiting groove 307, wherein the fixed box 301 is arranged in the detection box 1, the bidirectional threaded rod 302 is movably mounted in the fixed box 301, the threaded block 303 is connected with the external thread of the bidirectional threaded rod 302, the fixed rod 304 is fixedly mounted in the fixed box 301, the clamping plate 305 is fixedly mounted outside the threaded block 303, the fixed shaft 306 is fixedly mounted outside the fixed box 301, and the limiting groove 307 is formed in the outer portion of the fixed shaft 306.
In fig. 2, two ends of a steel strand are fixed by two fixing boxes 301, wherein one fixing box 301 keeps standing to fix one end of the steel strand, and the other fixing box 301 drives the other end of the steel strand to move and pulls the steel strand.
In fig. 2, when the steel strand is subjected to tensile test, the steel strand can be prevented from breaking during pulling by the detection box 1, and then the steel strand can be protected from workers.
In fig. 3, the end of the steel strand is limited by the limiting groove 307, so that the connectivity between the end of the steel strand and the fixed shaft 306 is improved, and the end of the steel strand is fixed by the clamping plate 305, so that the end of the steel strand is prevented from sliding on the fixed shaft 306.
To sum up, according to the unbonded steel strand tensile strength detection device, the end of the steel strand is wound onto the fixed shaft 306 along the limit groove 307, the two-way threaded rod 302 is rotated, the clamping plate 305 can be driven to approach the fixed shaft 306 through the threaded block 303, the fixed shaft 306 is clamped, the end of the steel strand is fixed through the clamping plate 305, the winding force of the end of the steel strand and the fixed shaft 306 can be enhanced through the limit groove 307, and the end of the steel strand can be better prevented from loosening in the pulling process.
And this unbonded steel strand tensile strength detection device drives lead screw 202 through opening motor 203 and rotates, drive one of them fixed box 301 through movable block 204 and remove, and drive the steel strand wires through the removal of one of them fixed box 301 and pull, through opening electric telescopic handle 205, drive pressure sensor 206 and clamp plate 207 decline, until after clamp plate 207 contacted with the steel strand wires, through electric telescopic handle 205's continuous decline, the tensile strength of steel strand wires can be obtained according to pressure sensor 206's pressure data, the current tensile strength test device has been solved when carrying out tensile test to unbonded steel strand wires, usually, the mode through carrying out the centre gripping to the end to the fixed of steel strand wires, this kind of fixed mode, easily cause the loose condition of steel strand wires's end when pulling, and can not keep the rate of tension of steel strand wires, the problem of easy influence the result of detection.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an unbonded steel strand wires tensile strength detection device, includes detection case (1), its characterized in that: a moving device (2) is arranged in the detection box (1), and a limiting device (3) is arranged in the detection box (1);
the mobile device (2) comprises a movable groove (201), a screw rod (202), a motor (203), a movable block (204), an electric telescopic rod (205), a pressure sensor (206) and a pressing plate (207), wherein the movable groove (201) is formed in the detection box (1), the screw rod (202) is movably installed in the movable groove (201), the motor (203) is fixedly installed at the inner bottom of the detection box (1), the movable block (204) is connected with the screw rod (202) through external threads, the electric telescopic rod (205) is fixedly installed in the detection box (1), the pressure sensor (206) is fixedly installed at the bottom of the electric telescopic rod (205), and the pressing plate (207) is fixedly installed at the bottom of the pressure sensor (206);
stop device (3) are including fixed box (301), two-way threaded rod (302), screw thread piece (303), dead lever (304), splint (305), fixed axle (306) and spacing groove (307), the inside of detecting box (1) is provided with fixed box (301), the inside movable mounting of fixed box (301) has two-way threaded rod (302), the outside threaded connection of two-way threaded rod (302) has screw thread piece (303), the inside fixed mounting of fixed box (301) has dead lever (304), the outside fixed mounting of screw thread piece (303) has splint (305), the outside fixed mounting of fixed box (301) has fixed axle (306), spacing groove (307) have been seted up to the outside of fixed axle (306).
2. The unbonded strand tensile strength detection apparatus as defined in claim 1, wherein: an output shaft of the motor (203) penetrates through the movable groove (201) and is fixedly connected with the screw rod (202).
3. The unbonded strand tensile strength detection apparatus as defined in claim 1, wherein: the number of the fixed boxes (301) is two, one fixed box (301) is positioned on the inner left wall of the detection box (1), and the other fixed box (301) is fixedly connected with the movable block (204).
4. The unbonded strand tensile strength detection apparatus as defined in claim 1, wherein: the top of the bidirectional threaded rod (302) penetrates through the fixed box (301) and extends to the outside of the fixed box (301), and the number of the fixed boxes (301) is two.
5. The unbonded strand tensile strength detection apparatus as defined in claim 1, wherein: the number of the fixed shafts (306) is two, and the two fixed shafts (306) are respectively positioned on opposite sides of the two fixed boxes (301).
6. The unbonded strand tensile strength detection apparatus as defined in claim 1, wherein: the number of the clamping plates (305) is four, and the four clamping plates (305) are respectively positioned on the upper side and the lower side of the two fixed shafts (306).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322349764.9U CN220568562U (en) | 2023-08-31 | 2023-08-31 | Unbonded steel strand tensile strength detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322349764.9U CN220568562U (en) | 2023-08-31 | 2023-08-31 | Unbonded steel strand tensile strength detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220568562U true CN220568562U (en) | 2024-03-08 |
Family
ID=90093630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322349764.9U Active CN220568562U (en) | 2023-08-31 | 2023-08-31 | Unbonded steel strand tensile strength detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220568562U (en) |
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2023
- 2023-08-31 CN CN202322349764.9U patent/CN220568562U/en active Active
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