A civil engineering steel bar deformation measuring device

Abstract

The present invention provides a kind of civil engineering steel bar deformation measuring equipment, relates to the technical field of measuring equipment, comprises an adjustable base and a feed barrel and a discharge plate slidably mounted on the adjustable base, two diagonal parts of the inner wall of the feed barrel are provided with hemispherical clamping holes and guide slide grooves, a plurality of belt discharge grooves and strip sticking grooves are provided on the feed barrel, a plurality of wedge-shaped strip lifting blocks are fixedly mounted on one end of the discharge plate close to the feed barrel, and also comprises two driving components for driving the steel bar to translate, the two driving components are respectively fixedly mounted on the feed barrel and the discharge plate at one end away from each other, a plurality of measuring components mounted on the outside of the feed barrel for measuring the deformation of the steel bar, a plurality of strip sticking components mounted on the feed barrel for sticking the measuring components on the steel bar, and through the above technical scheme, its purpose is to achieve the purpose of continuous and rapid measurement for steel bars with multi-directional deformation.

Description

Technical Field

[0001] The invention relates to the technical field of measuring equipment, and in particular to a civil engineering steel bar deformation measuring device. Background Art

[0002] Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. Its cross section is round or sometimes square with rounded corners. It includes plain round bars, ribbed bars and twisted bars. Rebar is a type of steel material that is commonly used in concrete structures during civil engineering construction to enhance the strength and durability of concrete. After the production of rebar is completed, its degree of deformation is generally measured and then packaged into bundles and transported to the construction site.

[0003] Comparative document 1, such as the Chinese invention patent with publication number CN111156885B, discloses a civil engineering steel bar deformation measurement device, which mainly fixes the steel bar by clamping the two ends and measures the deformation degree of the steel bar by measuring the offset. The measurement stroke is short, which is inconvenient for stable measurement and cannot measure the deformation of the steel bar at any position at any time. A civil engineering steel bar deformation measurement device includes a sliding seat; one side of the sliding seat is fixed with a mounting frame by bolt splicing; the middle of the top of the sliding seat is provided with a lead screw through an axial frame structure and a bearing for rotation; by providing an inner plate and a main rocker, the two sets of connecting strips can be connected by the linkage principle of the rocker mechanism, and the deformation direction of the steel bar can be directed to the top or bottom by the inner plate being brought closer, which provides convenience for measurement. At the same time, the setting of the fixed sliding seat can assist in guiding the balance rod to ensure that its movement direction is synchronously downward.

[0004] Comparative document 2, such as the Chinese invention patent with publication number CN111912347A, discloses a civil engineering steel bar deformation measuring device, including a workbench, a sliding groove is fixedly provided on the workbench, a sliding block is slidably connected to the sliding groove, a U-shaped bracket is welded to the upper end of the sliding block, a three-jaw chuck is welded to the upper end of the U-shaped bracket, a rodless hydraulic device is fixedly provided in the workbench, an external piston module is slidably connected to the rodless hydraulic device, a support frame is welded to the upper end of the external piston module, a measuring module is provided on the support frame, and the measuring module is composed of a bracket, a laser ranging sensor, a sliding groove, a sliding bar, a connecting rod, a support column, a rotating bearing, a rotating wheel and a spring. The present invention is a civil engineering steel bar deformation measuring device, which can realize rapid fixing of steel bars of different lengths or diameters, adopt a measuring module to realize rapid measurement of steel bar deformation, and display the measurement results on a display screen in real time, thereby improving work efficiency.

[0005] Since the deformation direction of the steel bar is not fixed and there will be multi-directional deformation, the above-mentioned comparative document 1 can only measure the radially deformed steel bars, and the above-mentioned comparative document 2 requires manual assistance to fix the steel bars to be measured, and continuous measurement cannot be achieved, resulting in low overall efficiency. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings in the prior art that the deformation direction of the steel bar is not fixed and there may be multi-directional deformation, and the traditional measuring equipment cannot perform continuous measurement on the multi-directionally bent steel bar.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a civil engineering steel bar deformation measuring device, comprising an adjustable base and a feed barrel and a discharge plate slidably mounted on the adjustable base, the inner wall of the feed barrel is provided with hemispherical clamping holes and guide slide grooves at two diagonal positions, the feed barrel is provided with a plurality of strip discharge grooves and strip sticking grooves, the discharge plate is fixedly provided with a plurality of wedge-shaped strip lifting blocks near one end of the feed barrel, and further comprising:

[0008] Two driving components for driving the steel bars to move in translation, the two driving components being respectively fixedly mounted on ends of the feed barrel and the discharge plate that are away from each other;

[0009] A plurality of measuring components installed on the outside of the feed drum for measuring the deformation of the steel bars, the measuring components comprising a winding seat, a curvature sensing belt and an elastic belt, the winding seat being fixedly installed on the outer end of the feed drum and located beside the belt outlet slot, the curvature sensing belt being wound on the winding seat, and a spring for winding the curvature sensing belt being fixedly installed on the shaft of the winding seat;

[0010] A plurality of strip sticking assemblies installed on the feed barrel are used to stick measuring assemblies on the steel bars, the strip sticking assemblies comprising an extension block, a guide rod and a rotating plate, one end of the extension block is movably inserted with a boss adapted to the card hole, a second limit plate is integrally formed on the boss, a second spring is provided between the second limit plate and the extension block, the guide rod is movably inserted in a guide slide groove in the feed barrel, one end of the guide rod is fixedly connected to the extension block, the other end of the guide rod extends to the outside of the feed barrel and is fixedly connected to a driving rod, the rotating plate is rotatably installed in the strip sticking groove, a torsion spring is fixedly connected between the shaft rod of the rotating plate and the feed barrel, the driving rod is rotatably connected to a connecting rod with one end of the rotating plate, and a pressure strip wheel is rotatably installed on the other end of the rotating plate.

[0011] In at least some embodiments, a plurality of mounting seats are fixedly installed at the outer end of the feed barrel corresponding to the position of the clamping hole, and the plurality of mounting seats are arranged at intervals with a plurality of tape outlet grooves and strip sticking grooves. A ejector pin is movably inserted on the mounting seat, and two first limiting plates are integrally formed on the ejector pin. A first spring is provided between the mounting seat and the first limiting plate at the end.

[0012] In at least some embodiments, the driving assembly includes a mounting plate and a driving roller, and two mounting plates and two driving rollers are provided. The two driving rollers are rotatably mounted between the two mounting plates, and one end of the shafts of the two driving rollers are fixedly mounted with gears that are meshed with each other. A driving motor is fixedly mounted on one of the mounting plates, and the output end of the driving motor is fixedly connected to the shaft of one of the driving rollers.

[0013] In at least some embodiments, an annular groove with a semicircular cross-section is formed on the outer side of the driving roller, and raised ribs are provided on the annular groove.

[0014] In at least some embodiments, a connecting block is fixedly mounted on one end of the curvature sensing belt away from the winding seat, an elastic belt is fixedly connected between the connecting blocks in two adjacent measuring components, and a plurality of first patch-type strain gauges are integrated on the elastic belt.

[0015] In at least some embodiments, a slot having the same size as the cross-sectional area of ​​the curvature sensing belt is provided between the belt outlet slot and the belt attachment slot, and the curvature sensing belt is inserted into the slot and clamped by a connecting block at the end.

[0016] In at least some embodiments, the interior of the curvature sensing belt is composed of a flexible belt, a plurality of second patch-type strain gauges are integrated and mounted on the flexible belt, a flexible shielding belt is provided at the bottom of the flexible belt, the flexible belt and the flexible shielding belt are covered with an outer film, and a flexible magnetic tape is fixedly bonded to the bottom of the outer film.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are:

[0018] In the present invention, the steel bars are bundled with an elastic band in the measuring component, and the stress of the elastic band is measured by the first patch-type strain gauge to calculate the diameter of the steel bars. The curvature sensor in the measuring component is attached to the surface of the steel bars. If the steel bars are bent at some part, the flexible band will bend accordingly. The stress is measured by the second patch-type strain gauge to achieve the purpose of measuring the curvature. Stereoscopic measurement can be achieved by attaching multiple curvature sensor bands to the outside of the steel bars.

[0019] In the present invention, the steel bar feeding is automatically driven by the driving component, and the curvature sensor strip is automatically attached to the steel bar surface by the strip sticking component, and the end of the curvature sensor strip is made flush with the end of the steel bar. At the same time, the curvature sensor strip is opened by the strip lifting block on the discharge plate, and then the first limit plate is manually pinched, and the curvature sensor strip is automatically hand-rolled. The above steps are repeated to achieve the purpose of continuous and rapid steel bar deformation measurement, thereby improving the overall measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention provides an overall three-dimensional schematic diagram of a civil engineering steel bar deformation measurement device;

[0021] Figure 2 The present invention provides a structural schematic diagram of a discharging plate in a civil engineering steel bar deformation measuring device;

[0022] Figure 3 The present invention provides a structural schematic diagram of a driving component in a civil engineering steel bar deformation measurement device;

[0023] Figure 4 The present invention provides a structural schematic diagram of a feed barrel in a civil engineering steel bar deformation measurement device;

[0024] Figure 5 The present invention provides a schematic diagram of the internal structure of a feed barrel in a civil engineering steel bar deformation measurement device;

[0025] Figure 6 The present invention provides a cross-sectional view of a feed barrel in a civil engineering steel bar deformation measurement device from one viewing angle;

[0026] Figure 7 The present invention provides a cross-sectional view of another angle of view of a feed barrel in a civil engineering steel bar deformation measuring device;

[0027] Figure 8 The present invention provides a schematic diagram of the structure of a measuring component in a civil engineering steel bar deformation measuring device;

[0028] Fig. 9 The present invention provides a structural schematic diagram of a curvature sensing strip in a civil engineering steel bar deformation measurement device;

[0029] Fig.10 The present invention provides a structural schematic diagram of a strip sticking assembly in a civil engineering steel bar deformation measuring device.

[0030] Legend: 1. Adjustable base; 2. Feeding barrel; 201. Clamping hole; 202. Guide slide; 203. Strip discharging slot; 204. Strip sticking slot; 205. Guide wheel; 206. Mounting seat; 207. Ejector pin; 208. First limiter; 209. First spring; 3. Discharging plate; 301. Strip lifting block; 4. Driving assembly; 401. Mounting plate; 402. Driving roller; 403. Gear; 404. Driving motor; 5. Measuring assembly; 501. Winding seat; 502. Curvature sensing belt; 503. 3. Elastic band; 504. Clockwork spring; 505. Connecting block; 506. First patch type strain gauge; 507. Flexible band; 508. Second patch type strain gauge; 509. Flexible shielding band; 510. Outer film; 511. Flexible magnetic band; 6. Strip assembly; 601. Extension block; 602. Guide rod; 603. Rotating plate; 604. Boss; 605. Second limit plate; 606. Second spring; 607. Driving rod; 608. Torsion spring; 609. Connecting rod; 610. Pressure strip wheel. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0033] according to Figure 1-Figure 10 A civil engineering steel bar deformation measuring device provided by an embodiment of the present invention comprises an adjustable base 1, a feed barrel 2 and a discharge plate 3 slidably mounted on the adjustable base 1, and also comprises two drive components 4 for driving the steel bars to translate, the two drive components 4 are respectively fixedly mounted on the feed barrel 2 and the discharge plate 3 at one end away from each other;

[0034] A plurality of measuring components 5 installed outside the feed barrel 2 for measuring the deformation of the steel bars;

[0035] A plurality of strip assemblies 6 are mounted on the feed barrel 2 and used to attach the measuring assembly 5 to the steel bar, such as Figure 2 As shown, a plurality of wedge-shaped strip-lifting blocks 301 are fixedly installed at one end of the discharge plate 3 near the feed tube 2. When in use, after the steel bar passes through the discharge plate 3, the strip-sticking assembly 6 on the steel bar can be removed by the strip-lifting block 301, as shown in FIG. Figure 6 As shown, hemispherical clamping holes 201 and guide slots 202 are provided at two diagonal positions of the inner wall of the feed barrel 2, and a plurality of strip outlet slots 203 and strip pasting slots 204 are provided on the feed barrel 2. A plurality of guide wheels 205 are fixedly installed in the strip outlet slots 203. When in use, the support and rotation of the guide wheels 205 effectively reduce the wear of the strip pasting assembly 6 when it is reeled in and out.

[0036] like Figure 1-3 As shown, the driving assembly 4 includes a mounting plate 401 and a driving roller 402. The mounting plate 401 and the driving roller 402 are each provided with two. The two driving rollers 402 are rotatably mounted between the two mounting plates 401. One end of the shaft of the two driving rollers 402 is fixedly mounted with a gear 403 that is meshed with each other. One of the mounting plates 401 is fixedly mounted with a driving motor 404. The output end of the driving motor 404 is fixedly connected to the shaft of one of the driving rollers 402. When in use, the steel bar to be tested is clamped between the two driving rollers 402. The driving motor 404 drives one of the driving rollers 402 to rotate, and the meshing action of the two gears 403 is used to make the two driving rollers 402 rotate in opposite directions. The friction between the driving rollers 402 and the steel bars is used to drive the steel bars to move, thereby achieving the purpose of feeding.

[0037] like Figure 3 As shown, a semicircular annular groove with a cross-section is provided on the outer side of the driving roller 402 and raised ribs are provided on the annular groove. When in use, the steel bars are clamped by the annular groove so that the steel bars can pass through the driving roller 402 smoothly, and the transmission efficiency of the steel bars is improved by the engagement between the ribs on the driving roller 402 and the ribs on the steel bars.

[0038] like Figure 7 As shown, a plurality of mounting seats 206 are fixedly installed at the positions corresponding to the card holes 201 at the outer ends of the feed barrel 2, and the plurality of mounting seats 206 are spaced apart from the plurality of tape outlet slots 203 and the strip sticking slots 204. A ejector pin 207 is movably inserted on the mounting seat 206, and two first limiting plates 208 are integrally formed on the ejector pin 207. A first spring 209 is provided between the mounting seat 206 and the first limiting plate 208 at the end. When in use, the measurement personnel respectively pinch the first limiting plates 208 on the outer sides of the measuring barrel with both hands, and drive the ejector pin 207 to insert into the feed barrel 2 to achieve the purpose of contact limiting the strip sticking assembly 6. After releasing their hands, the elastic action of the first spring 209 is used to return the ejector pin 207, thereby achieving the purpose of quickly unlocking the quick strip sticking assembly 6 and improving the efficiency of continuous measurement of steel bars.

[0039] like Figure 5 and Figure 8 As shown, the measuring component 5 includes a winding seat 501, a curvature sensing belt 502 and an elastic belt 503. The winding seat 501 is fixedly installed on the outer end of the feed cylinder 2 and is located next to the belt outlet slot 203. The curvature sensing belt 502 is wound on the winding seat 501. A clockwork spring 504 for winding the curvature sensing belt 502 is fixedly installed on the axis of the winding seat 501. When in use, after the curvature sensing belt 502 is pasted on the steel bar by the strip pasting component 6, the displacement of the steel bar drives the curvature sensing belt 502 to unwind from the winding seat 501. After the measurement is completed, the elastic action of the clockwork spring 504 is used to automatically wind up the curvature sensing belt 502 (similar to the principle of automatic winding of a tape measure).

[0040] like Figure 8 As shown, a connecting block 505 is fixedly installed at one end of the curvature sensing belt 502 away from the winding seat 501, and an elastic belt 503 is fixedly connected between the connecting blocks 505 in two adjacent measuring components 5. A plurality of first patch-type strain gauges 506 are integrated and installed on the elastic belt 503. When in use, the elastic effect of the elastic belt 503 is utilized to make the connecting block 505 equidistantly clamped on the periphery of the steel bar, and at the same time, the deformation of the elastic belt 503 is measured by the first patch-type strain gauge 506, and the diameter of the steel bar can be obtained through an external measurement host.

[0041] like Figure 5 and Figure 8As shown, a gap of the same size as the cross-sectional area of ​​the curvature sensing belt 502 is provided between the tape outlet slot 203 and the strip sticking slot 204, and the curvature sensing belt 502 is inserted in the gap and clamped by the connecting block 505 at the end. When in use, the curvature sensing belt 502 is limited by the gap between the tape outlet slot 203 and the strip sticking slot 204 during the process of winding the curvature sensing belt 502 by the winding seat 501, and the elastic action of the clockwork spring 504 is used to stretch the elastic belt 503 so that the multiple connecting blocks 505 move away from each other and return to their original positions, thereby achieving the purpose of automatic regularization.

[0042] like Fig. 9 As shown, the interior of the curvature sensing belt 502 is composed of a flexible belt 507, on which a plurality of second patch type strain gauges 508 are integrated and installed, a flexible shielding belt 509 is provided at the bottom of the flexible belt 507, the flexible belt 507 and the flexible shielding belt 509 are coated with an outer film 510, and a flexible magnetic tape 511 is fixedly bonded to the bottom of the outer film 510. When in use, after the curvature sensing belt 502 is adsorbed and attached to the surface of the steel bar through the flexible magnetic tape 511, if the steel bar is bent at some part, the flexible belt 507 bends accordingly, and the stress is measured by the second patch type strain gauge 508, thereby achieving the purpose of measuring the bending degree. By attaching a plurality of curvature sensing belts 502 to the outside of the steel bar, three-dimensional measurement can be achieved, and the addition of the flexible shielding belt 509 blocks the influence of the magnetism of the flexible magnetic tape 511 on the second patch type strain gauge 508.

[0043] like Figure 4 , Figure 5 and Fig.10As shown, the strip sticking assembly 6 includes an extension block 601, a guide rod 602 and a rotating plate 603, one end of the extension block 601 is movably inserted with a boss 604 adapted to the card hole 201, and a second limit plate 605 is integrally formed on the boss 604, and a second spring 606 is provided between the second limit plate 605 and the extension block 601, the guide rod 602 is movably inserted into the guide slide groove 202 in the feed barrel 2, one end of the guide rod 602 is fixedly connected to the extension block 601, and the other end of the guide rod 602 extends to the outside of the feed barrel 2 and is fixedly connected with a driving rod 607, and the rotating plate 603 is rotatably installed in the strip sticking groove 204, and a torsion spring 608 is fixedly connected between the shaft of the rotating plate 603 and the feed barrel 2, the driving rod 607 is rotatably connected to one end of the rotating plate 603 with a connecting rod 609, and the other end of the rotating plate 603 is rotatably installed with a pressure strip wheel 610. When in use, the steel bar is driven by the driving assembly 4 The end of the steel bar presses against the protruding column 604 to drive the extension block 601 to move. The movement of the extension block 601 drives the guide rod 602 to extend from the feeding barrel 2, and drives the connecting rod 609 to rotate through the driving rod 607. The connecting rod 609 rotates to lift one end of the rotating plate 603 and drives the rotating plate 603 to rotate. The rotation of the rotating plate 603 drives the pressure wheel 610 to move downward. The pressure wheel 610 moves downward to press the curvature sensing strip so that the curvature sensing strip fits the outer surface of the steel bar. It is worth noting that through the setting of the extension block 601, the action of the pressure wheel 610 pressing the curvature sensing belt 502 onto the steel bar is synchronized with the steel bar transportation, and when the end of the steel bar is placed just below the jump groove, the pressure wheel 610 just presses the curvature sensing belt 502 on the steel bar, so as to make the end of the curvature sensing belt 502 flush with the end of the steel bar, so as to reduce the problem of the overall measurement accuracy being reduced due to the downward bending of the curvature sensing belt 502 due to gravity.

[0044] The specific working principle is that the steel bar to be tested is clamped between two driving rollers 402, and the driving assembly 4 drives the steel bar to translate and enter the feeding barrel 2. After the steel bar enters the feeding barrel 2, it presses against the protruding column 604 to drive the extension block 601 to move, and the extension block 601 moves to drive the guide rod 602 to extend from the feeding barrel 2, and drives the connecting rod 609 to rotate through the driving rod 607. The connecting rod 609 rotates to lift one end of the rotating plate 603 and drives the rotating plate 603 to rotate at the same time. The rotating plate 603 rotates to drive the pressure wheel 610 to move downward, and the pressure wheel 610 moves downward to press the curvature sensing strip so that the curvature sensing strip fits the outer surface of the steel bar. The curvature sensing belt 502 is always in contact with the surface of the steel bar through the downward pressure of the lower pressure wheel. The reinforcing bar continues to translate and drives the curvature sensing belt 502 to unwind. It is worth noting that by setting the extension block 601, the action of the pressure strip wheel 610 pressing the curvature sensing belt 502 onto the reinforcing bar is synchronized with the conveying of the reinforcing bar, and when the end of the reinforcing bar is placed just below the jump groove, the pressure strip wheel 610 just presses the curvature sensing belt 502 onto the reinforcing bar, so that the end of the curvature sensing belt 502 is flush with the end of the reinforcing bar, and at the same time, the elastic action of the second spring 606 is used to make the boss 604 clamped in the clamping hole 201, at this time, the distance between the bosses 604 becomes larger, the reinforcing bar can continue to translate, and the elastic action of the elastic belt 503 in the measuring component 5 also causes the connecting block 505 to shrink, and the elastic belt 503 can be tied to the end of the reinforcing bar;

[0045] Measuring principle: the connection block 505 is equidistantly clamped on the outer periphery of the steel bar, and the deformation of the elastic band 503 is measured by the first patch type strain gauge 506, and the diameter of the steel bar can be obtained through the external measurement host. After the curvature sensing belt 502 is adsorbed and attached to the surface of the steel bar by the flexible magnetic suction belt 511, if the steel bar is bent, the flexible belt 507 will bend accordingly, and the stress is measured by the second patch type strain gauge 508, so as to achieve the purpose of measuring the curvature. By attaching multiple curvature sensing belts 502 to the outside of the steel bar, three-dimensional measurement can be achieved, and then the overall shape, curvature and bending direction of the steel bar can be calculated at the external measurement terminal;

[0046] According to the principle of continuous measurement, after the steel bar passes through the discharge plate 3, the curvature sensing strip on the steel bar can be opened by the strip-lifting block 301. After the curvature sensing strip is opened and the steel bar is separated from the feed tube 2 as a whole, the curvature sensing belt 502 is automatically wound by the elastic action of the clockwork spring 504. During the winding process of the curvature sensing belt 502, the winding seat 501 limits the curvature sensing belt 502 through the gap between the strip discharge groove 203 and the strip attachment groove 204, and uses the elastic action of the clockwork spring 504 to stretch the elastic belt 503 so that the multiple connection blocks 505 are moved away from each other and returned to their original positions, thereby achieving the purpose of automatic regularization. After the curvature sensing strip returns to its original position, the measurement personnel respectively pinches the first limit piece 208 on the outer side of the measuring tube with both hands, and drives the ejector pin 207 to be inserted into the feed tube 2 to eject the boss 604 from the clamping hole 201, and utilizes the elastic action of the torsion spring 608 to drive the rotating plate 603 to rotate, and the rotating plate 603 rotates the pressure strip wheel 610 to return to its original position, and at the same time pushes the extension block 601 to return to its original position, and after releasing the hands, utilizes the elastic action of the first spring 209 to return the ejector pin 207 to achieve the purpose of quickly unlocking the quick-sticking strip assembly 6, and finally continues the above-mentioned feeding and measuring operations to achieve the purpose of continuous measurement.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A civil engineering steel bar deformation measuring device, comprising an adjustable base (1) and a feed tube (2) and a discharge plate (3) slidably mounted on the adjustable base (1), characterized in that: The inner wall of the feed barrel (2) is provided with hemispherical clamping holes (201) and guide sliding grooves (202) at two diagonal positions, the feed barrel (2) is provided with a plurality of strip discharge grooves (203) and strip attachment grooves (204), a plurality of wedge-shaped strip lifting blocks (301) are fixedly mounted on one end of the discharge plate (3) close to the feed barrel (2), and further comprises: Two driving components (4) for driving the steel bars to move in translation, the two driving components (4) being respectively fixedly mounted on ends of the feed barrel (2) and the discharge plate (3) that are away from each other; A plurality of measuring components (5) mounted on the outside of the feed drum (2) for measuring the deformation of the steel bars, the measuring components (5) comprising a winding seat (501), a curvature sensing belt (502) and an elastic belt (503), the winding seat (501) being fixedly mounted on the outer end of the feed drum (2) and located beside the belt outlet slot (203), the curvature sensing belt (502) being wound on the winding seat (501), and a spring spring (504) for winding the curvature sensing belt (502) being fixedly mounted on the shaft of the winding seat (501); A plurality of strip-sticking assemblies (6) mounted on the feed barrel (2) for sticking the measuring assembly (5) on the steel bar, the strip-sticking assemblies (6) comprising an extension block (601), a guide rod (602) and a rotating plate (603), one end of the extension block (601) being movably plugged with a boss (604) adapted to the clamping hole (201), a second limiting piece (605) being integrally formed on the boss (604), a second spring (606) being provided between the second limiting piece (605) and the extension block (601), the guide rod (602) being movably plugged into the feed barrel (2) In the guide slide groove (202), one end of the guide rod (602) is fixedly connected to the extension block (601), and the other end of the guide rod (602) extends to the outside of the feed barrel (2) and is fixedly connected to a driving rod (607). The rotating plate (603) is rotatably installed in the strip groove (204), and a torsion spring (608) is fixedly connected between the shaft of the rotating plate (603) and the feed barrel (2). The driving rod (607) is rotatably connected to one end of the rotating plate (603) by a connecting rod (609), and the other end of the rotating plate (603) is rotatably installed with a strip pressing wheel (610).

2. The civil engineering steel bar deformation measuring device according to claim 1, characterized in that: A plurality of mounting seats (206) are fixedly mounted at the outer end of the feed barrel (2) at positions corresponding to the clamping holes (201); the plurality of mounting seats (206) are spaced apart from the plurality of tape outlet slots (203) and the tape attachment slots (204); a ejector pin (207) is movably inserted into the mounting seat (206); two first limiting plates (208) are integrally formed on the ejector pin (207); and a first spring (209) is provided between the mounting seat (206) and the first limiting plate (208) at the end.

3. The civil engineering steel bar deformation measuring device according to claim 1, characterized in that: The driving assembly (4) comprises a mounting plate (401) and a driving roller (402), wherein two mounting plates (401) and two driving rollers (402) are provided, and the two driving rollers (402) are rotatably mounted between the two mounting plates (401), and gears (403) meshing with each other are fixedly mounted on one end of the shafts of the two driving rollers (402), and a driving motor (404) is fixedly mounted on one of the mounting plates (401), and the output end of the driving motor (404) is fixedly connected to the shaft of one of the driving rollers (402).

4. The civil engineering steel bar deformation measuring device according to claim 3, characterized in that: An annular groove with a semicircular cross section is provided on the outer side of the driving roller (402), and a raised rib is provided on the annular groove.

5. The civil engineering steel bar deformation measuring device according to claim 1, characterized in that: A connecting block (505) is fixedly mounted on one end of the curvature sensing belt (502) away from the winding seat (501), an elastic belt (503) is fixedly connected between the connecting blocks (505) in two adjacent measuring components (5), and a plurality of first patch-type strain gauges (506) are integrated and mounted on the elastic belt (503).

6. The civil engineering steel bar deformation measuring device according to claim 5, characterized in that: A slit having the same size as the cross-sectional area of ​​the curvature sensing belt (502) is provided between the belt outlet slot (203) and the belt attachment slot (204); the curvature sensing belt (502) is inserted into the slit and clamped by a connecting block (505) at the end.

7. The civil engineering steel bar deformation measuring device according to claim 6, characterized in that: The curvature sensing belt (502) is internally composed of a flexible belt (507), a plurality of second patch-type strain gauges (508) are integrated and mounted on the flexible belt (507), a flexible shielding belt (509) is provided at the bottom of the flexible belt (507), the flexible belt (507) and the flexible shielding belt (509) are coated with an outer film (510), and a flexible magnetic attraction belt (511) is fixedly bonded to the bottom of the outer film (510).

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