A steel bar on-site detection device for construction project management

Abstract

The present invention relates to the field of detection technology, and particularly relates to a on-site detection device for steel bars used in construction project management, which includes a base, a support column, a fixing plate, a limiting component, and an adjusting component; a support cylinder is provided at the upper end of the support column; the limiting component includes a chute and a sliding plate; two sliding seats are provided on the sliding plate; a pressing ball is ball-jointed on the sliding seat; the adjusting component enables some of the pressing balls to abut against the vertical ribs, so as to apply a rotational force to the steel bar through the vertical ribs, and the rotational forces applied by the two support cylinders to the two ends of the steel bar are opposite, so as to limit the vertical ribs of the steel bar and keep the two vertical ribs on the steel bar vertically distributed. At the same time, the adjusting component drives the two sliding seats on the same sliding plate to approach each other, so that the two pressing balls on part of the sliding plate are clamped on both sides of the spiral ribs on the steel bar, increasing the rotational resistance of the steel bar, which helps to prevent the steel bar from rotating in the initial stage of being bent, and improving the detection effect.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and particularly relates to a on-site detection device for steel bars used in construction project management. Background Art

[0002] The bending performance of steel bars is one of the important indicators for evaluating the durability and safety of steel bars in building structures. Steel bars may need to be bent during the construction process to meet different design requirements. Therefore, the bending performance of steel bars is directly related to the safety and stability of the structure. The surface of the steel bar is usually designed with spiral raised patterns, and the patterns on the steel bar help to improve the bond strength between it and the concrete. The steel bar with patterns is usually called deformed steel bar. Common patterns of steel bars include two vertical ribs extending along the axis of the steel bar. The two vertical ribs are distributed at the two end points of the diameter of the steel bar, dividing the surface of the steel bar into two semi-circular arc surfaces; on the two arc surfaces, a plurality of spiral ribs are evenly distributed along the axial direction of the steel bar.

[0003] In the prior art, as disclosed in a Chinese patent with publication number CN116499856B and name of a steel bar bending performance detection device and detection method, the disclosed technical solution records that the steel bar is embedded into the support components on both sides and installed in the limit groove. The steel bar can be limited through the limit groove, and the steel bar is fixed by the clamping wheel groups on both sides; then, the pressure device on the upper side drives the pressure rod and the pressure block to generate a downward pressure to bend the steel bar. During the bending process of the steel bar, due to the existence of the raised patterns on the surface of the steel bar, it may cause the steel bar to rotate when the pressure block starts to squeeze the steel bar, resulting in the steel bar sliding with the hydraulic head, thus affecting the detection effect. Summary of the Invention

[0004] The present invention provides a on-site detection device for steel bars used in construction project management to solve the above problems.

[0005] A on-site detection device for steel bars used in construction project management of the present invention adopts the following technical solution: A on-site detection device for steel bars used in construction project management includes a base, support columns, a fixing plate, a limiting component, and an adjusting component; a bending device is arranged above the base.

[0006] There are two support columns symmetrically arranged on the left and right; the support columns are arranged vertically, the lower ends are fixed on the base, and the upper ends are provided with support cylinders; the axes of the support cylinders are arranged horizontally; the support cylinders are rotatably installed at the upper ends of the support columns through a rotating component.

[0007] The fixing plate is a spiral plate that spirals around the axis of the support cylinder; the fixing plate is arranged inside the support cylinder; the cross-section of the fixing plate is conical with the small end facing the inner wall of the support cylinder; the small end of the fixing plate is fixed on the inner wall of the support cylinder; the fixing plate and the support cylinder enclose a spiral adjustment groove with the opening facing the axis of the support cylinder; the cross-section of the adjustment groove is trapezoidal with the small end facing the axis of the support cylinder.

[0008] There are multiple limiting components, which are spirally and evenly distributed along the spiral direction of the fixing plate; the limiting component includes a chute and a sliding plate; the chute is opened on the side wall of the large end of the fixing plate; the chute is a spiral groove extending along the spiral direction of the fixing plate; the sliding plate is slidably installed in the chute; there are two sliding seats on the sliding plate; the two sliding seats are distributed along the axial direction of the support cylinder; a pressing ball is ball-jointed at one end of the sliding seat close to the axis of the support cylinder; the sliding seat is slidably installed on the sliding plate along the axial direction of the support cylinder, and a spring is fixedly connected between the two sliding seats; the spring separates the two sliding seats and pushes the sliding seats to the opening of the adjustment groove.

[0009] The adjusting component is arranged in the adjustment groove; insert both ends of the steel bar into the support cylinder, and make the two vertical ribs on the steel bar vertically distributed. The adjusting component drives the sliding plate to spiral-slide on the fixing plate, driving the pressing balls to gather towards the vertical ribs of the steel bar, so that some pressing balls are in contact with the vertical ribs of the steel bar, so as to apply a rotational force to the steel bar through the vertical ribs, and the rotational forces applied by the two support cylinders at both ends of the steel bar are opposite, so as to limit the vertical ribs of the steel bar and keep the two vertical ribs on the steel bar vertically distributed. At the same time, the adjusting component drives the two sliding seats on the same sliding plate to approach, so that some of the two pressing balls on the sliding plate are clamped on both sides of the spiral rib on the steel bar, increasing the rotational resistance of the steel bar, which helps to prevent the steel bar from rotating in the initial stage of being bent and improves the detection effect.

[0010] Further, the end of the sliding seat away from the axis of the support cylinder is hemispherical.

[0011] Further, the adjusting component includes an adjusting plate and a guiding structure; the adjusting plate is arranged in the adjustment groove in a spiral shape; the adjusting plate is an elastic plate; the cross-section of the adjusting plate is a straight shape along the axial direction of the support cylinder; one end of the adjusting plate close to the symmetric center of the two support columns is fixed on the inner wall of the support cylinder, and the end away from the symmetric center of the two support columns is set as a movable end; a turntable is fixed at the movable end of the adjusting plate; the turntable is rotatably installed on the inner wall of the support cylinder; an adjusting motor is arranged at one end of the turntable away from the adjusting plate; the adjusting motor is fixed on the support cylinder; the output shaft of the adjusting motor is fixedly connected to the turntable; the turntable drives one end of the adjusting plate close to the adjusting motor to rotate around the support cylinder along the spiral direction of the adjusting plate, and the adjusting plate drives the sliding plate to rotate around the axis of the support cylinder through the guiding structure. And when the turntable drives one end of the adjusting plate close to the adjusting motor to rotate around the support cylinder along the spiral direction of the adjusting plate, and the rotation of the movable end of the adjusting plate causes the spiral radius of the part between the two ends of the adjusting plate to gradually decrease, the guiding structure guides the part between the two ends of the adjusting plate to approach the axis of the support cylinder.

[0012] Furthermore, the guiding structure includes a sliding hole and a guiding rod. The sliding hole is provided on the adjusting plate. The guiding rod is arranged on one side of the sliding plate along the radial direction of the supporting cylinder. The guiding rod is fixedly connected to the sliding plate through a cross-linking rod. One end of the guiding rod away from the axis of the supporting cylinder is inserted into the sliding hole, and the guiding rod is in sliding fit with the sliding hole. When the adjusting motor is started to drive the turntable to rotate, the turntable drives one end of the adjusting plate close to the adjusting motor to rotate around the supporting cylinder along the spiral direction of the adjusting plate. The adjusting plate drives the sliding plate to rotate around the axis of the supporting cylinder through the sliding hole and the guiding rod. Since the sliding plate is slidably installed in the sliding groove, the sliding plate slides spirally along the sliding groove. Moreover, the closer the sliding plate is to the turntable, the more turns it makes around the axis of the supporting cylinder. Thus, the sliding plate drives the pressure ball to gather towards the vertical rib of the steel bar through the sliding seat, making part of the pressure ball abut against the vertical rib, so as to apply a rotational force to the steel bar through the vertical rib. At the same time, the rotational forces applied by the two supporting cylinders at both ends of the steel bar are opposite to limit the vertical rib of the steel bar and keep the two vertical ribs on the steel bar vertically distributed. Meanwhile, when the turntable drives one end of the adjusting plate close to the adjusting motor to rotate around the supporting cylinder along the spiral direction of the adjusting plate, the rotation of the movable end of the adjusting plate causes the spiral radius of the part between the two ends of the adjusting plate to gradually decrease, making the part between the two ends of the adjusting plate approach the axis of the supporting cylinder along the guiding rod, and making the adjusting plate abut against the side wall of the hemispherical end of the sliding seat. Thereby, the two sliding seats on the same sliding plate are driven to approach each other against the spring force, clamping the two pressure balls on part of the sliding plate on both sides of the spiral rib of the steel bar, increasing the rotational resistance of the steel bar and helping to prevent the steel bar from rotating in the initial stage of being bent.

[0013] Furthermore, an auxiliary plate is provided on one side of the adjusting plate close to the axis of the supporting cylinder. The auxiliary plate is arranged in the adjusting groove in a spiral shape. The auxiliary plate is an elastic plate. The cross-section of the auxiliary plate is in a shape of a straight line along the radial direction of the supporting cylinder. The auxiliary plate and the adjusting plate are in a T shape. The auxiliary plate and the adjusting plate are fixedly connected through a connecting component. When the part between the two ends of the adjusting plate approaches the axis of the supporting cylinder along the guiding rod, the auxiliary plate presses against the surface of the steel bar, increasing the rotational resistance of the steel bar and reducing the possibility of the steel bar rotating.

[0014] Furthermore, there are multiple connecting components, which are spaced apart and distributed on the adjusting plate. The connecting component includes a slot. The slot is in a spiral shape. The number of spiral turns of the slot is half a turn. The auxiliary plate is inserted into the slot, and the auxiliary plate and the adjusting plate are fixedly connected by bolts at the slot. The connecting component fixedly connects the auxiliary plate and the adjusting plate at intervals, reducing the resistance when the adjusting plate contracts towards the axis of the supporting cylinder.

[0015] Furthermore, the conical wall of the fixing plate is set as a guiding wall. The guiding wall is in an arc shape. It is used to guide the adjusting plate to slide towards the opening of the adjusting groove when the adjusting plate approaches the axis of the supporting cylinder.

[0016] Furthermore, the bending device includes a bracket. The bracket is fixed on the base. An installation plate slides up and down on the bracket through a power component. A pressing block is fixed at the lower end of the installation plate. The lower end of the pressing block is in an arc shape.

[0017] Further, the power assembly includes a lead screw; the lead screw is vertically arranged; the lead screw is rotatably installed on the bracket and is in threaded cooperation with the mounting plate; a power motor is fixed on the bracket; the output shaft of the power motor is fixedly connected to the lead screw.

[0018] Further, the rotating assembly includes a rotating seat; the rotating seat is fixed on the support cylinder; a jack is provided on the rotating seat; a pin is detachably inserted into the jack; the pin is rotatably engaged with the support column. During use, pull out the pin, remove the support cylinder, insert both ends of the steel bar into the support cylinder, and make the two vertical ribs on the steel bar vertically distributed. Then insert the pin into the jack and rotatably install the pin on the support column.

[0019] The beneficial effects of the present invention are as follows: Insert both ends of the steel bar into the support cylinder, and make the two vertical ribs on the steel bar vertically distributed. The adjusting assembly drives the sliding plate to spiral slide on the fixed plate, driving the pressure balls to gather towards the vertical ribs of the steel bar, so that some pressure balls are in contact with the vertical ribs of the steel bar, so as to apply a rotational force to the steel bar through the vertical ribs. Moreover, the rotational forces applied by the two support cylinders at both ends of the steel bar are opposite, so as to limit the vertical ribs of the steel bar and keep the two vertical ribs on the steel bar vertically distributed. At the same time, the adjusting assembly drives the two sliding seats on the same sliding plate to approach, so that two pressure balls on some sliding plates are clamped on both sides of the spiral ribs on the steel bar, increasing the rotational resistance of the steel bar, which helps to prevent the steel bar from rotating in the initial stage of being bent, and improves the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of a steel bar on-site detection device for construction project management according to the present invention;

[0022] Figure 2 For Figure 1 The enlarged view of part A in

[0023] Figure 3 It is a schematic diagram of another angle of an embodiment of a steel bar on-site detection device for construction project management according to the present invention;

[0024] Figure 4 It is an exploded view of the support cylinder, the limit assembly, and the adjusting assembly of an embodiment of a steel bar on-site detection device for construction project management according to the present invention;

[0025] Figure 5 is Figure 4 a sectional view taken along line B-B in

[0026] Figure 6 is Figure 5 an enlarged view at C in

[0027] Figure 7 is Figure 5 an enlarged view at D in

[0028] Figure 8 a schematic view of the support cylinder and the limit assembly of an embodiment of a steel bar on-site detection device for construction project management according to the present invention;

[0029] Figure 9 a sectional view of the support cylinder and the limit assembly of an embodiment of a steel bar on-site detection device for construction project management according to the present invention;

[0030] Figure 10 is Figure 9 an enlarged view at E in

[0031] Figure 11 a schematic view of the slide plate, the slide seat, and the pressing ball of an embodiment of a steel bar on-site detection device for construction project management according to the present invention.

[0032] In the figure: 100, steel bar; 110, vertical rib; 120, spiral rib; 200, base; 230, bracket; 240, mounting plate; 250, pressing block; 300, support column; 310, support cylinder; 320, rotating assembly; 400, fixing plate; 510, chute, 520, slide plate; 530, slide seat; 540, pressing ball; 610, adjusting groove; 620, adjusting plate; 621, sliding hole; 622, guide rod; 630, adjusting motor; 640, auxiliary plate. Detailed implementation manners

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] An embodiment of a steel bar on-site detection device for construction project management according to the present invention, as shown in Figures 1 to 11As shown: A on-site inspection device for steel bars used in construction project management, including a base 200, support columns 300, a fixing plate 400, a limiting component, and an adjusting component; a bending device is provided above the base 200. The bending device includes a bracket 230; the bracket 230 is fixed on the base 200; an installation plate 240 slides up and down on the bracket 230 through a power component; a pressing block 250 is fixed at the lower end of the installation plate 240; the lower end of the pressing block 250 is arc-shaped. The power component includes a lead screw; the lead screw is arranged vertically; the lead screw is rotatably installed on the bracket 230 and is in threaded cooperation with the installation plate 240; a power motor is fixed on the bracket 230; the output shaft of the power motor is fixedly connected to the lead screw.

[0035] There are two support columns 300 symmetrically arranged left and right; the support columns 300 are arranged vertically, the lower ends are fixed on the base 200, and the upper ends are provided with support cylinders 310; the axes of the support cylinders 310 are arranged left and right; the support cylinders 310 are rotatably installed at the upper ends of the support columns 300 through a rotating component 320. The rotating component 320 includes a rotating seat; the rotating seat is fixed on the support cylinder 310; a jack is provided on the rotating seat; a pin is detachably inserted into the jack; the pin is in rotational cooperation with the support column 300. During use, pull out the pin, remove the support cylinder 310, insert both ends of the steel bar 100 into the support cylinder 310, and make the two vertical ribs 110 on the steel bar 100 vertically distributed, then insert the pin into the jack and rotatably install the pin on the support column 300.

[0036] The fixing plate 400 is a spiral plate wound around the axis of the support cylinder 310; the fixing plate 400 is arranged inside the support cylinder 310; the cross-section of the fixing plate 400 is conical with the small end facing the inner wall of the support cylinder 310; the conical wall of the fixing plate 400 is set as a guiding wall; the guiding wall is arc-shaped. It is used to guide the adjusting plate 620 to slide towards the opening of the adjusting groove 610 when the adjusting plate 620 approaches the axis of the support cylinder 310. The small end of the fixing plate 400 is fixed on the inner wall of the support cylinder 310; the fixing plate 400 and the support cylinder 310 enclose a spiral adjusting groove 610 with an opening facing the axis of the support cylinder 310; the cross-section of the adjusting groove 610 is trapezoidal with the small end facing the axis of the support cylinder 310.

[0037] There are multiple limiting components, which are spirally and evenly distributed along the spiral direction of the fixing plate 400; the limiting components include a sliding groove 510 and a sliding plate 520; the sliding groove 510 is opened on the side wall of the large end of the fixing plate 400; the sliding groove 510 is a spiral groove extending along the spiral direction of the fixing plate 400; the sliding plate 520 is slidably installed in the sliding groove 510; there are two sliding seats 530 on the sliding plate 520; the two sliding seats 530 are axially distributed along the support cylinder 310; one end of the sliding seat 530 away from the axis of the support cylinder 310 is hemispherical. A pressing ball 540 is ball-jointed at one end of the sliding seat 530 close to the axis of the support cylinder 310; the sliding seat 530 is slidably installed on the sliding plate 520 along the axial direction of the support cylinder 310, and a spring is fixedly connected between the two sliding seats 530; the spring separates the two sliding seats 530 and pushes the sliding seat 530 to the opening of the adjusting groove 610.

[0038] The adjusting component is arranged in the adjusting groove 610; the two ends of the steel bar 100 are inserted into the support cylinder 310, and the two vertical ribs 110 on the steel bar 100 are vertically distributed. The adjusting component drives the sliding plate 520 to slide spirally on the fixing plate 400, driving the pressing balls 540 to gather towards the vertical ribs 110 of the steel bar 100, so that some of the pressing balls 540 are in contact with the vertical ribs 110 of the steel bar 100, so as to apply a rotational force to the steel bar 100 through the vertical ribs 110, and the rotational forces applied by the two support cylinders 310 to the two ends of the steel bar 100 are opposite, so as to limit the vertical ribs 110 of the steel bar 100 and keep the two vertical ribs 110 on the steel bar 100 vertically distributed. At the same time, the adjusting component drives the two sliding seats 530 on the same sliding plate 520 to approach, so that some of the two pressing balls 540 on the sliding plate 520 are clamped on both sides of the spiral rib 120 on the steel bar 100, increasing the rotational resistance of the steel bar 100, which helps to prevent the steel bar 100 from rotating in the initial stage of being bent and improves the detection effect.

[0039] The adjusting assembly includes an adjusting plate 620 and a guiding structure; the adjusting plate 620 is spirally arranged in the adjusting groove 610; the adjusting plate 620 is an elastic plate; the cross-section of the adjusting plate 620 is in a shape of a straight line along the axis direction of the support cylinder 310; one end of the adjusting plate 620 close to the symmetry center of the two support columns 300 is fixed on the inner wall of the support cylinder 310, and the end far from the symmetry center of the two support columns 300 is set as a movable end; a turntable is fixed at the movable end of the adjusting plate 620; the turntable is rotatably installed on the inner wall of the support cylinder 310; an adjusting motor 630 is arranged at one end of the turntable far from the adjusting plate 620; the adjusting motor 630 is fixed on the support cylinder 310; the output shaft of the adjusting motor 630 is fixedly connected with the turntable; the turntable drives one end of the adjusting plate 620 close to the adjusting motor 630 to rotate around the support cylinder 310 along the spiral direction of the adjusting plate 620, and the adjusting plate 620 drives the sliding plate 520 to rotate around the axis of the support cylinder 310 through the guiding structure, and when the turntable drives one end of the adjusting plate 620 close to the adjusting motor 630 to rotate around the support cylinder 310 along the spiral direction of the adjusting plate 620, and the rotation of the movable end of the adjusting plate 620 causes the spiral radius of the part between the two ends of the adjusting plate 620 to gradually decrease, the guiding structure guides the part between the two ends of the adjusting plate 620 to approach the axis of the support cylinder 310.

[0040] The guiding structure includes a sliding hole 621 and a guide rod 622. The sliding hole 621 is provided on the adjusting plate 620. The guide rod 622 is arranged on one side of the sliding plate 520 along the radial direction of the support cylinder 310. The guide rod 622 is fixedly connected to the sliding plate 520 through a cross-link. One end of the guide rod 622 away from the axis of the support cylinder 310 is inserted into the sliding hole 621. The guide rod 622 and the sliding hole 621 are in sliding fit. When the adjusting motor 630 is started to drive the turntable to rotate, the turntable drives one end of the adjusting plate 620 close to the adjusting motor 630 to rotate around the support cylinder 310 along the spiral direction of the adjusting plate 620. The adjusting plate 620 drives the sliding plate 520 to rotate around the axis of the support cylinder 310 through the sliding hole 621 and the guide rod 622. Since the sliding plate 520 is slidably installed in the sliding groove 510, the sliding plate 520 spirally slides along the sliding groove 510. The closer the sliding plate 520 is to the turntable, the more turns it makes around the axis of the support cylinder 310. Thus, the sliding plate 520 drives the pressing balls 540 to gather towards the vertical ribs 110 of the steel bar 100 through the sliding seat 530, causing some of the pressing balls 540 to abut against the vertical ribs 110 of the steel bar 100, so as to apply a rotational force to the steel bar 100 through the vertical ribs 110. The rotational forces applied by the two support cylinders 310 at both ends of the steel bar 100 are opposite to limit the vertical ribs 110 of the steel bar 100 and keep the two vertical ribs 110 on the steel bar 100 vertically distributed. At the same time, when the turntable drives one end of the adjusting plate 620 close to the adjusting motor 630 to rotate around the support cylinder 310 along the spiral direction of the adjusting plate 620, the rotation of the movable end of the adjusting plate 620 causes the spiral radius of the part between the two ends of the adjusting plate 620 to gradually decrease, making the part between the two ends of the adjusting plate 620 approach the axis of the support cylinder 310 along the guide rod 622, so that the adjusting plate 620 abuts against the side wall of the hemispherical end of the sliding seat 530, thereby driving the two sliding seats 530 on the same sliding plate 520 to approach each other against the spring force, clamping the two pressing balls 540 on some of the sliding plates 520 on both sides of the spiral ribs 120 of the steel bar 100, increasing the rotational resistance of the steel bar 100, and helping to prevent the steel bar 100 from rotating at the initial stage of being bent.

[0041] In this embodiment, an auxiliary plate 640 is provided on one side of the adjusting plate 620 close to the axis of the support cylinder 310; the auxiliary plate 640 is arranged in a spiral shape in the adjusting groove 610; the auxiliary plate 640 is an elastic plate; the cross-section of the auxiliary plate 640 is a horizontal shape along the radial direction of the support cylinder 310; the auxiliary plate 640 and the adjusting plate 620 are in a T shape; the auxiliary plate 640 and the adjusting plate 620 are fixedly connected by a connecting component. When the part between the two ends of the adjusting plate 620 approaches the axis of the support cylinder 310 along the guide rod 622, the auxiliary plate 640 presses against the surface of the steel bar 100, increasing the rotational resistance of the steel bar 100 and reducing the possibility of the steel bar 100 rotating. There are multiple connecting components, which are spaced apart and distributed on the adjusting plate 620; the connecting component includes a slot; the slot is in a spiral shape; the number of spiral turns of the slot is half a turn; the auxiliary plate 640 and the slot are inserted, and the auxiliary plate 640 and the adjusting plate 620 are fixedly connected by bolts at the slot. The connecting component fixes the auxiliary plate 640 and the adjusting plate 620 in a spaced manner, reducing the resistance when the adjusting plate 620 contracts towards the axis of the support cylinder 310.

[0042] Combined with the above embodiments, the working principle and process of the present invention are as follows: When in use, in the first step, pull out the pin, remove the support cylinder 310, insert both ends of the steel bar 100 into the support cylinder 310, and make the two vertical ribs 110 on the steel bar 100 vertically distributed, and then insert the pin into the jack and rotate the pin to install it on the support column 300.

[0043] In the second step, start the adjusting motor 630 to drive the turntable to rotate; the turntable drives one end of the adjusting plate 620 close to the adjusting motor 630 to rotate around the support cylinder 310 along the spiral direction of the adjusting plate 620. The adjusting plate 620 drives the sliding plate 520 to rotate around the axis of the support cylinder 310 through the sliding hole 621 and the guide rod 622. Since the sliding plate 520 is slidably installed in the sliding groove 510, the sliding plate 520 slides spirally along the sliding groove 510. Moreover, the closer the sliding plate 520 is to the turntable, the more turns it makes when rotating spirally around the axis of the support cylinder 310. Thus, the sliding plate 520 drives the pressing ball 540 to gather towards the vertical rib 110 of the steel bar 100 through the sliding seat 530, so that part of the pressing balls 540 are in contact with the vertical rib 110 of the steel bar 100, and a rotational force is applied to the steel bar 100 through the vertical rib 110. Also, the rotational forces applied to both ends of the steel bar 100 by the two support cylinders 310 are opposite to limit the vertical rib 110 of the steel bar 100, so that the two vertical ribs 110 on the steel bar 100 are vertically distributed. At the same time, when the turntable drives one end of the adjusting plate 620 close to the adjusting motor 630 to rotate around the support cylinder 310 along the spiral direction of the adjusting plate 620, the rotation of the movable end of the adjusting plate 620 causes the spiral radius of the part between the two ends of the adjusting plate 620 to gradually decrease, making the part between the two ends of the adjusting plate 620 approach the axis of the support cylinder 310 along the guide rod 622, and the adjusting plate 620 abuts against the side wall of the hemispherical end of the sliding seat 530, thereby driving the two sliding seats 530 on the same sliding plate 520 to approach each other against the spring force, so that the two pressing balls 540 on part of the sliding plates 520 are clamped on both sides of the spiral rib 120 of the steel bar 100, increasing the rotational resistance of the steel bar 100 and helping to prevent the steel bar 100 from rotating in the initial stage of being bent.

[0044] In the third step, start the power motor, and drive the pressing block 250 to move downwards and press against the steel bar 100 through the lead screw, so as to bend the steel bar 100.

[0045] In the fourth step, after the steel bar 100 is bent by a certain angle, after the adjusting motor 630 rotates reversely by a certain angle, reduce the magnitude of the limiting force on the steel bar 100, so that the steel bar 100 can slide relative to the support cylinder 310, improving the detection effect. And when the steel bar 100 is bent by a large angle, the elastic adjusting plate 620 and the auxiliary plate 640 provide buffering in the extending direction of the steel bar 100 to adapt to the displacement of the steel bar 100 caused by the bending of the steel bar 100, improving the detection effect.

[0046] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steel bar on-site detection device for construction project management, characterized in that: Comprising: A base, with a bending device arranged above it; Support columns, two of which are symmetrically arranged left and right; The support columns are arranged vertically, with the lower ends fixed on the base and the upper ends provided with support cylinders; The axis of the support cylinder is arranged left and right; The support cylinder is rotatably installed at the upper end of the support column through a rotating component; A fixing plate, which is a spiral plate wound around the axis of the support cylinder; The fixing plate is arranged inside the support cylinder; The cross-section of the fixing plate is conical with the small end facing the inner wall of the support cylinder; The small end of the fixing plate is fixed on the inner wall of the support cylinder; The fixing plate and the support cylinder enclose a spiral adjustment groove with an opening facing the axis of the support cylinder; A plurality of limiting components are provided, which are spirally and evenly distributed along the spiral direction of the fixing plate; The limiting component includes a chute and a sliding plate; The chute is opened on the side wall of the large end of the fixing plate; The chute is a spiral groove extending along the spiral direction of the fixing plate; The sliding plate is slidably installed in the chute; Two sliding seats are provided on the sliding plate; The two sliding seats are distributed along the axial direction of the support cylinder; One end of the sliding seat close to the axis of the support cylinder is ball-jointed with a pressing ball; The sliding seat is slidably installed on the sliding plate along the axial direction of the support cylinder, and a spring is fixedly connected between the two sliding seats; The spring separates the two sliding seats and pushes the sliding seats to the opening of the adjustment groove; An adjustment component is arranged in the adjustment groove; The adjustment component drives the sliding plate to slide spirally on the fixing plate, driving the pressing balls to gather towards the vertical ribs of the steel bar, so that some of the pressing balls are in contact with the vertical ribs of the steel bar, so as to apply a rotational force to the steel bar through the vertical ribs, and the rotational forces applied by the two support cylinders to the two ends of the steel bar are opposite. At the same time, the adjustment component drives the two sliding seats on the same sliding plate to approach, so that the two pressing balls on some of the sliding plates are clamped on both sides of the spiral ribs on the steel bar.

2. The on-site steel bar detection device for construction project management according to claim 1, characterized in that: One end of the sliding seat away from the axis of the support cylinder is hemispherical.

3. The on-site steel bar detection device for construction project management according to claim 2, wherein: The adjustment component includes an adjustment plate and a guiding structure; The adjustment plate is spirally arranged in the adjustment groove; The adjustment plate is an elastic plate; The cross-section of the adjustment plate is in the shape of a straight line along the axial direction of the support cylinder; One end of the adjustment plate close to the symmetry center of the two support columns is fixed on the inner wall of the support cylinder, and the end away from the symmetry center of the two support columns is set as a movable end; A turntable is fixed at the movable end of the adjustment plate; The turntable is rotatably installed on the inner wall of the support cylinder; An adjustment motor is provided at one end of the turntable away from the adjustment plate; The adjustment motor is fixed on the support cylinder; The output shaft of the adjustment motor is fixedly connected with the turntable.

4. The on-site steel bar detection device for construction project management according to claim 3, characterized in that: The guiding structure includes a sliding hole and a guide rod; The sliding hole is arranged on the adjustment plate; The guide rod is arranged on one side of the sliding plate along the radial direction of the support cylinder; The guide rod is fixedly connected with the sliding plate through a cross connecting rod; One end of the guide rod away from the axis of the support cylinder is inserted into the sliding hole; The guide rod and the sliding hole are slidably matched.

5. The on-site steel bar detection device for construction project management according to claim 4, characterized in that: An auxiliary plate is arranged on one side of the adjustment plate close to the axis of the support cylinder; The auxiliary plate is spirally arranged in the adjustment groove; The auxiliary plate is an elastic plate; The cross-section of the auxiliary plate is in the shape of a straight line along the radial direction of the support cylinder; The auxiliary plate and the adjustment plate are in a T shape; The auxiliary plate and the adjustment plate are fixedly connected through a connecting component.

6. The on-site steel bar detection device for construction project management according to claim 5, characterized in that: A plurality of connecting components are provided, which are spaced and distributed on the adjustment plate; The connecting component includes a slot; The slot is spiral; The number of spiral turns of the slot is half a turn; The auxiliary plate is inserted into the slot, and the auxiliary plate and the adjustment plate are fixedly connected by bolts at the slot.

7. The steel bar on-site detection device for construction project management according to claim 6, characterized in that: The conical wall of the fixing plate is set as a guiding wall; The guiding wall is arc-shaped.

8. The on-site steel bar detection device for construction project management according to claim 7, characterized in that: The bending device includes a bracket; the bracket is fixed on the base; an installation plate slides up and down on the bracket through a power component; a pressing block is fixed to the lower end of the installation plate; the lower end of the pressing block is arc-shaped.

9. The on-site steel bar detection device for construction project management according to claim 8, characterized in that: The power component includes a lead screw; the lead screw is arranged vertically; the lead screw is rotatably installed on the bracket and is in threaded cooperation with the installation plate; a power motor is fixed on the bracket; the output shaft of the power motor is fixedly connected to the lead screw.

10. The on-site steel bar detection device for construction project management according to claim 1, characterized in that: The rotating component includes a rotating seat; the rotating seat is fixed on the support cylinder; a jack is provided on the rotating seat; a pin is detachably inserted into the jack; the pin is rotatably matched with the support column.

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