CN217688201U

CN217688201U - Steel construction prestressing force detection device

Info

Publication number: CN217688201U
Application number: CN202221363768.1U
Authority: CN
Inventors: 蓝家晟; 唐宴旖
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-10-28
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses a steel construction prestressing force detection device, comprising a base plate, be equipped with two shifting chutes on the bottom plate, the shifting chute sets up on the bottom plate slope, interval between two shifting chutes of different positions departments of bottom plate is different, be equipped with on the shifting chute and remove the storehouse, sliding connection between removal storehouse and the shifting chute, be equipped with fixed knot structure one in the shifting chute, fixed knot structure one is used for the fixed storehouse of removing, so that it is fixed between removal storehouse and the shifting chute, be equipped with fixed knot structure two on the removal storehouse, fixed knot structure two-purpose is used for fixed outside steel construction, sliding connection between fixed knot structure two and the removal storehouse, still be equipped with test structure on the bottom plate, test structure is used for testing the prestressing force of steel construction, the utility model discloses rational in infrastructure, interval between two removal storehouses can be tested the steel construction of different length, when the test, the steel construction can be buckled, the distance at steel construction both ends shortens, removes the other end that removes the storehouse until fixed knot structure two, can be identified as accomplishing the test.

Description

Steel construction prestressing force detection device

Technical Field

The utility model relates to a prestressing force check out test set field, in particular to steel construction prestressing force detection device.

Background

Construction steel is an indispensable part in modern construction, and the construction steel structure usually has prestress before normal use, and the existence of the prestress can bring great hidden danger, so the measurement is needed.

Most common ways of detecting the prestress of the steel structure are to perform a tensile test and a bending test on the steel structure. When the bending experiment is carried out, firstly, fixing of steel structures with different lengths is considered, and then, the change of the distance between two ends of the steel structure after bending is also considered. When the existing detection device is used, the length of the steel structure which cannot be well adapted after being bent is shortened, and the bending degree of the steel structure is not specifically determined when the test is finished, so that the error of a detection result is large. In view of the above problems, a solution is proposed as follows.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a steel construction prestressing force detection device has the length that can the adaptation steel construction after buckling and shortens the condition, and confirms the displacement distance that steel construction bending point was every time all the same advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a steel construction prestressing force detection device, includes the bottom plate, be equipped with two shifting chutes on the bottom plate, the shifting chute inclines to set up on the bottom plate, and two mutual symmetry between the shifting chute, the interval between two shifting chutes of different positions of bottom plate department is different, be equipped with the removal storehouse on the shifting chute, it is located the shifting chute to remove the storehouse, just sliding connection between removal storehouse and the shifting chute, be equipped with fixed knot structure one in the shifting chute, fixed knot structure one is used for the fixed storehouse of removing to it is fixed to make between removal storehouse and the shifting chute, be equipped with fixed knot structure two on the removal storehouse, fixed knot structure two is used for fixed outside steel construction, sliding connection between fixed knot structure two and the removal storehouse, still be equipped with test structure on the bottom plate, test structure is used for testing the prestressing force of steel construction.

Preferably, the first fixing structure comprises two first motors and two first threaded rods, the two first threaded rods are respectively located in the two moving grooves, a sliding block is fixedly arranged on the lower end face of the moving bin and is connected with the moving grooves in a sliding mode, threaded holes are formed in the sliding block, the first threaded rods penetrate through the threaded holes and are in threaded connection with the threaded holes, the two first motors are respectively connected with the two first threaded rods, and the first threaded rods are used for driving the sliding block to move so as to change the position of the moving bin on the bottom plate.

Preferably, the second fixing structure comprises two stand columns, two fixing blocks, a plurality of moving blocks and a plurality of second threaded rods, the two stand columns are respectively located on the two moving bins and are connected with the moving bins in a sliding mode, the fixing blocks are located at the upper ends of the stand columns and are fixedly connected with the stand columns, threaded cylinders are arranged on the fixing blocks and are connected with the fixing blocks in a rotating mode, the second threaded rods penetrate through the threaded cylinders and are connected with the threaded cylinders in a threaded mode, one ends of the second threaded rods are fixedly connected with the moving blocks in a rotating mode, and the second threaded rods are used for adjusting the distance between the moving blocks and the fixing blocks so that the moving blocks and the fixing blocks can fix the steel structure.

Preferably, the second fixing structure further comprises a worm and a plurality of worm wheels, the worm is rotatably connected with the fixing block, the worm wheels are sleeved on the threaded cylinders and are fixedly connected with the threaded cylinders, the worm wheels are all meshed with the worm, and the worm is used for driving the worm wheels to rotate so as to enable the threaded cylinders to rotate synchronously.

Preferably, the testing structure comprises a testing block and a power source, a testing groove is formed in the bottom plate and is located between the two moving grooves, the lower end of the testing block is located in the testing groove and is in sliding connection with the testing groove, a pressure sensor is arranged on the testing block and is used for detecting pressure of the testing block on the steel structure to measure prestress in the steel structure.

Preferably, the power source includes two electronic jars, electronic jar is fixed in one side of bottom plate, and two electronic jar is connected with the upper end and the lower extreme of testing the piece respectively, electronic jar is used for providing the power of testing the piece to make the test piece realize the bending to doing the steel construction.

The utility model has the advantages that: first according to the length of the steel construction that needs detected, start first motor, make first threaded rod rotate, drive two and remove the storehouse and move suitable position on the bottom plate. Later place the steel construction that will detect on fixed knot constructs two, two sets of fixed blocks and movable block cooperation, press from both sides the both ends of steel construction tight fixedly. At last, the test block is driven to move through the electric cylinder, pressure is applied to the middle position of the steel structure, the steel structure is bent, the distance between the two ends of the steel structure during bending can be gradually reduced, the second fixed structure is driven to move on the moving bin, and the second fixed structure can be recognized to finish detection of the steel structure until the two fixed structures move to the end of the moving bin where the second fixed structure is located. During each detection, the moving distances of the second fixing structures are the same, so that the displacement distances of the steel structure bending points are the same during each detection, and the accuracy of the detection result is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

fig. 2 is a top view of the embodiment.

Reference numerals: 1. a base plate; 2. a moving groove; 3. moving the bin; 4. a first motor; 5. a first threaded rod; 6. an electric cylinder; 7. a column; 8. a fixed block; 9. a moving block; 10. a second threaded rod; 11. a threaded barrel; 12. a worm; 13. a worm gear; 14. a test block; 15. a test slot; 16. a pressure sensor.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 and 2, the steel structure prestress detection device comprises a base plate 1, wherein two moving grooves 2 are arranged on the base plate 1, the moving grooves 2 are obliquely arranged on the base plate 1, and the two moving grooves 2 are symmetrical to each other. The two moving grooves 2 are formed in a V-shape on the base plate 1. The base plate 1 may be marked with a scale to indicate the distance between the two moving grooves 2 at that location.

A first fixing structure is arranged in the moving groove 2 and comprises two first motors 4 and two first threaded rods 5. The two first threaded rods 5 are respectively positioned in the two moving grooves 2 and are rotatably connected with the moving grooves 2. Two first motors 4 are fixed on the bottom plate 1 and are respectively connected with two first threaded rods 5. After the two first motors 4 are started, the two threaded rods can be driven to rotate.

The bottom plate 1 is provided with a moving bin 3, the lower end face of the moving bin 3 is fixedly provided with a sliding block, and the sliding block is connected with the moving groove 2 in a sliding manner. A threaded hole is formed in the sliding block, and the first threaded rod 5 penetrates through the threaded hole and is in threaded connection with the threaded hole. The first threaded rod 5 is used for driving the slide block to move so as to change the position of the moving bin 3 on the bottom plate 1. When the first threaded rod 5 rotates in the forward direction, the two movable bins 3 are driven to move away from each other. When the first threaded rod 5 rotates reversely, the two movable bins 3 are driven to approach each other. When the first threaded rod 5 is not rotated, the position of the movable bin 3 on the bottom plate 1 is fixed and cannot be moved.

And a second fixing structure is arranged on the movable bin 3 and used for fixing an external steel structure. The second fixing structure comprises two upright posts 7, two fixing blocks 8, a plurality of moving blocks 9 and a plurality of second threaded rods 10. The two upright posts 7 are respectively positioned on the two movable bins 3 and are connected with the movable bins 3 in a sliding way. Before detection, the two upright posts 7 are separated and positioned at the farthest end of the moving bin 3, and the distance between the two upright posts 7 is the largest. When detection is carried out, the two upright posts 7 gradually want to move the other end of the moving bin 3 until the two upright posts 7 move to the other end of the moving bin 3, and at the moment, the distance between the two upright posts 7 is the minimum.

The fixed block 8 is positioned at the upper end of the upright post 7 and is fixedly connected with the upright post 7. The fixing block 8 is provided with a thread cylinder 11, and the thread cylinder 11 is rotatably connected with the fixing block 8. The second threaded rod 10 passes through the threaded cylinder 11 and is threadedly connected with the threaded cylinder 11. By turning the threaded cylinder 11, an adjustment of the position of the second threaded rod 10 can be achieved. One end of the second threaded rod 10 is fixedly connected with the moving block 9 in a rotating mode, and the second threaded rod 10 is used for adjusting the distance between the moving block 9 and the fixed block 8. The end part of the steel structure is placed between the moving block 9 and the fixed block 8, and the moving block 9 is driven to be close to the fixed block 8 by rotating the threaded barrel 11, so that the steel structure is clamped and fixed.

A plurality of second threaded rods 10 are provided on the set of fixed blocks 8 and the moving block 9 in order to rotate the plurality of second threaded rods 10 synchronously. The second fixing structure further comprises a worm 12 and a plurality of worm wheels 13, the worm 12 is rotatably connected with the fixing block 8, the worm wheels 13 are sleeved on the thread cylinder 11 and fixedly connected with the thread cylinder 11, and the worm wheels 13 are all meshed with the worm 12. Through rotating worm 12, worm 12 can drive a plurality of worm wheel 13 synchronous rotation to make a plurality of screw thread section of thick bamboo 11 synchronous rotation, make the condition that the slope can not appear when the removal of movable block 9, thereby make the realization that movable block 9 can be better fixed the steel construction. For more convenient rotation of the worm 12, a motor may be connected to the worm 12, or a handle may be added.

Still be equipped with test structure on the bottom plate 1, test structure is used for testing the prestressing force of steel construction. The test structure includes a test block 14 and a power source. The bottom plate 1 is provided with a test slot 15, the test slot 15 is positioned between the two moving slots 2, and the lower end of the test block 14 is positioned in the test slot 15 and is in sliding connection with the test slot 15. The pressure sensor 16 is arranged on the test block 14, and the pressure sensor 16 is used for detecting the pressure generated by the test block 14 on the steel structure so as to measure the prestress in the steel structure.

The power supply includes two electronic jars 6, and electronic jar 6 is fixed in one side of bottom plate 1, and two electronic jars 6 are connected with the upper end and the lower extreme of testing piece 14 respectively, and electronic jar 6 is used for providing the power of testing piece 14 to make the bending of testing piece 14 realization to doing the steel construction. The power source can also be other elements capable of providing linear power, such as a cylinder, a screw rod structure and the like.

The working principle is as follows: when in use, the position of the movable bin 3 is adjusted according to the length of the measured steel structure. Two first motors 4 are started, the two first motors 4 drive two first threaded rods 5 to synchronously rotate, and the first threaded rods 5 can drive the sliding block to press the moving groove 2 to move, so that the position between the two moving bins 3 is changed.

After the position of the movable bin 3 is adjusted, two ends of a steel structure to be detected are placed on one side of the fixing plate, the worm 12 is rotated, the worm 12 drives the worm wheels 13 to synchronously rotate, and the worm wheels 13 drive the thread cylinders 11 to synchronously rotate. The threaded cylinder 11 drives the second threaded rod 10 to move, so that the second threaded rod 10 drives the moving block 9 to be close to the fixed block 8. Until the end part of the steel structure is clamped and fixed by the moving block 9 and the fixed block 8.

The realization is to the fixed back of two tip of steel construction, and electronic jar 6 starts, drives test block 14 and removes, and test block 14 can support at the middle part of steel construction, and pressure sensor 16 detects the pressure that test block 14 produced the steel construction. After the test block 14 finishes bending the steel structure, the prestress information of the steel structure can be obtained by reading the pressure data on the pressure sensor 16.

The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a steel construction prestressing force detection device, includes bottom plate (1), its characterized in that, be equipped with two shifting chutes (2) on bottom plate (1), shifting chute (2) slope setting on bottom plate (1), and two mutual symmetry between shifting chute (2), the interval between two shifting chutes (2) of bottom plate (1) different positions department is different, be equipped with on shifting chute (2) and remove storehouse (3), it is located shifting chute (2) to remove storehouse (3), just sliding connection between moving storehouse (3) and shifting chute (2), be equipped with fixed knot in shifting chute (2) constructs one, fixed knot constructs one and is used for fixed moving storehouse (3) to it is fixed between storehouse (3) and shifting chute (2), be equipped with fixed knot on removing storehouse (3) constructs two, fixed knot constructs two and is used for fixed outside steel construction, sliding connection between fixed knot constructs two and the shifting chute (3), still be equipped with test structure on bottom plate (1), test structure is used for testing the prestressing force of steel construction.

2. The steel structure prestress detection device according to claim 1, wherein the first fixing structure comprises two first motors (4) and two first threaded rods (5), the two first threaded rods (5) are respectively located in the two moving grooves (2), a sliding block is fixedly arranged on the lower end face of the moving bin (3), the sliding block is slidably connected with the moving grooves (2), threaded holes are formed in the sliding block, the first threaded rods (5) penetrate through the threaded holes and are in threaded connection with the threaded holes, the two first motors (4) are respectively connected with the two first threaded rods (5), and the first threaded rods (5) are used for driving the sliding block to move so as to change the position of the moving bin (3) on the bottom plate (1).

3. The steel structure prestress detection device according to claim 1, wherein the second fixing structure comprises two upright posts (7), two fixing blocks (8), a plurality of moving blocks (9) and a plurality of second threaded rods (10), the two upright posts (7) are respectively located on the two moving bins (3) and are in sliding connection with the moving bins (3), the fixing blocks (8) are located at the upper ends of the upright posts (7) and are fixedly connected with the upright posts (7), threaded barrels (11) are arranged on the fixing blocks (8), the threaded barrels (11) are rotatably connected with the fixing blocks (8), the second threaded rods (10) penetrate through the threaded barrels (11) and are in threaded connection with the threaded barrels (11), one ends of the second threaded rods (10) are fixedly connected with the moving blocks (9) in a rotating mode, and the second threaded rods (10) are used for adjusting the distance between the moving blocks (9) and the fixing blocks (8) to enable the moving blocks (9) and the fixing blocks (8) to fix the steel structure.

4. The steel structure prestress detection device according to claim 3, wherein the second fixing structure further comprises a worm (12) and a plurality of worm wheels (13), the worm (12) is rotatably connected with the fixing block (8), the worm wheels (13) are sleeved on the thread cylinders (11) and fixedly connected with the thread cylinders (11), the worm wheels (13) are all meshed with the worm (12), and the worm (12) is used for driving the worm wheels (13) to rotate so as to enable the thread cylinders (11) to rotate synchronously.

5. The steel structure prestress detection device according to claim 1, wherein the test structure comprises a test block (14) and a power source, a test slot (15) is arranged on the bottom plate (1), the test slot (15) is located between the two moving grooves (2), the lower end of the test block (14) is located in the test slot (15) and is in sliding connection with the test slot (15), a pressure sensor (16) is arranged on the test block (14), and the pressure sensor (16) is used for detecting the pressure of the test block (14) on the steel structure so as to measure the prestress in the steel structure.

6. The steel structure prestress detection device according to claim 5, wherein the power source comprises two electric cylinders (6), the electric cylinders (6) are fixed on one side of the base plate (1), the two electric cylinders (6) are respectively connected with the upper end and the lower end of the test block (14), and the electric cylinders (6) are used for providing power for the test block (14) so that the test block (14) can bend the dry steel structure.