CN116037809A

CN116037809A - Reinforcing steel bar bending device for quality detection of constructional engineering

Info

Publication number: CN116037809A
Application number: CN202211444813.0A
Authority: CN
Inventors: 郑承; 徐国梁; 林新文
Original assignee: Shangrao Licheng Construction Engineering Testing Consulting Co ltd
Current assignee: Shangrao Licheng Construction Engineering Testing Consulting Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-05-02

Abstract

The utility model discloses a steel bar bending device for detecting the quality of constructional engineering, which comprises a tension machine and a lifting belt, wherein the tension machine comprises a frame and a cross beam which is arranged on the frame and can move up and down, a clamping mechanism is respectively arranged at the left side and the right side of the cross beam, a chute is arranged below the cross beam, two fixing seats are arranged in the chute in a sliding manner, steel bars can be arranged in the two fixing seats in a penetrating manner, the lifting belt lifts the steel bars, and two ends of the lifting belt respectively penetrate through gaps between the cross beam and clamping plates at two sides of the cross beam. The utility model adopts the hoisting belt to better contact with the steel bar, and restores the actual stress condition of the steel bar in the concrete, so that the obtained data has more practicability and persuasion.

Description

Reinforcing steel bar bending device for quality detection of constructional engineering

Technical Field

The utility model relates to the technical field of steel bar quality detection, in particular to a steel bar bending device for quality detection of constructional engineering.

Background

The steel bars are steel materials for reinforced concrete and prestressed reinforced concrete, the cross section of the steel materials is round, and sometimes square with round corners, and the steel materials comprise smooth round steel bars, ribbed steel bars and torsion steel bars, and the steel bars are steel materials for buildings and important steel materials thereof, so that the firmness degree of the buildings is determined, the quality of the steel bars is ensured, and a bending test is required before the steel bars are used.

In the prior art, the bending detection of the steel bar is carried out by directly applying pressure to the surface of the steel bar by adopting a press machine, but in the actual use process of the steel bar, the stress mode is not concentrated on a certain point, the actual stress point can be in the middle, at two ends or uniformly stress the whole steel bar, the steel bar is mostly cylindrical, after the steel bar is inlaid in concrete and subjected to pressure, the arc surfaces of the stress positions of the steel bar are stress areas, and in the test of the prior art, the stress mode changes the surface contact into the line contact, so that the pressure of the stress point of the steel bar is increased, and the test result is not strict enough.

The utility model discloses a reinforcing steel bar bending device for detecting the quality of construction engineering according to the Chinese patent with the authorized bulletin number of CN212083118U, which comprises a driving bending mechanism and a reinforcing steel bar fixing mechanism, wherein the reinforcing steel bar fixing mechanism is fixedly connected to the left side of the top of the driving bending mechanism, the driving bending mechanism comprises a first connecting shell, the right side of the inner wall of the first connecting shell is fixedly connected with a transverse moving block through a cylinder, the top of the transverse moving block penetrates through the first connecting shell and extends to the outer side of the first connecting shell to be fixedly connected with a hydraulic rod, the side surface of the hydraulic rod is provided with a hydraulic device matched with the hydraulic rod, and the top end of the hydraulic rod is fixedly connected with a connecting block. The stress mode of the device is to change the surface contact into the line contact, so that the testing performance and the actual use performance of the steel bar are greatly different.

Disclosure of Invention

In view of the above, the utility model aims to overcome the defects of the prior art, and provides a steel bar bending device for detecting the quality of construction engineering, which adopts a lifting belt to better contact with steel bars, and reduces the actual stress condition of the steel bars in concrete, so that the obtained data has more practicability and convincing ability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a reinforcing bar bending device for building engineering quality detects, including pulling machine and hoist and mount area, pulling machine includes the frame and set up the crossbeam that can reciprocate in the frame, crossbeam left and right sides respectively is provided with a clamping mechanism, clamping mechanism is including seting up hole one or groove on the crossbeam up end, set up the gear in hole one or groove and seting up the hole two in the crossbeam side, kong Erguan perforation one or groove, set up the step shaft in the hole two, the step shaft includes the shaft body, set up respectively at two axle journals at the shaft body both ends and set up respectively at two axle spindle heads of two axle journal tip, the shaft body passes hole one or groove and is connected with its inside gear cooperation, the gear passes through the hand wheel drive, the both ends of hole two are provided with a bearing respectively, two bearings are respectively overlapped and are established on the axle journal at both ends, set up the screw thread that revolves to opposite respectively on two spindle heads, respectively be provided with a splint on the splint, two spindle heads pass through threaded connection with the splint of both sides, the crossbeam below sets up the spout, slide is provided with two fixing bases in the spout, can wear to hoist and mount area, and put respectively, the gap is passed respectively between its both sides.

Further, two compacting pieces are symmetrically arranged in the middle of the cross beam, each compacting piece comprises a supporting seat, a screw rod and a pressing rod, the bottoms of the supporting seats are fixed on the cross beam, the tops of the supporting seats are provided with outwards extending cross plates, the cross plates are provided with supports, the screw rods penetrate through the supports and are in threaded connection with the supports, the end parts of the cross plates are rotationally connected with the middle of the pressing rods, the bottoms of the screw rods can contact the upper half parts of the pressing rods and push the upper half parts of the pressing rods to rotate, and the lower ends of the pressing rods can contact the outer end faces of the clamping plates.

Further, the lower end of the compression bar is connected with a compression plate.

Further, a plurality of conical bulges are arranged on both side surfaces of the cross beam and the inner side surfaces of the two clamping plates.

Further, the hoisting belt can be provided in plurality.

Further, two fixing bases all include seat circle and base, and the seat circle sets up on the base, and the reinforcing bar wears to establish in the seat circle of two fixing bases, and the base is T shape structure, and the spout is T shape spout, and the base setting is rather than sliding connection in the spout.

Further, the hand wheel drives the gear to rotate through the transmission gear set.

Further, the end parts of the two shaft heads are provided with anti-falling threaded caps.

The beneficial effects of the utility model are as follows:

1. the utility model provides a steel bar bending device for detecting the quality of constructional engineering, which comprises a tension machine and a lifting belt, wherein a clamping mechanism is formed by a cross beam capable of moving up and down through the tension machine and clamping plates at two sides of the cross beam to clamp two end parts of the lifting belt, a steel bar to be detected is lifted through the lifting belt to detect the bending resistance of the steel bar, the lifting belt can be better contacted with the steel bar, and the actual stress condition of the steel bar in concrete is reduced. The crossbeam below sets up the spout, and the slip is provided with two fixing bases in the spout, and the reinforcing bar can wear to establish in two fixing bases, can adjust the position of reinforcing bar stress point through the position that changes two fixing bases. Two pressing pieces are symmetrically arranged in the middle of the cross beam and used for increasing the clamping force in the middle of the cross beam, so that the clamping force in the middle is prevented from being reduced due to overlong length of the cross beam, and the lifting belt falls off.

2. The lower end of the compression bar is connected with the compression plate, so that the contact area is increased, and the clamping plate is prevented from being scratched. A plurality of conical bulges are arranged on the two side surfaces of the cross beam and the inner side surfaces of the two clamping plates, so that friction force is improved, and the lifting belt can be clamped more firmly. The lifting belt can be provided with a plurality of lifting belts, so that the stress conditions of the steel bars under different conditions are simulated, and different simulation amounts of a test are increased. The two fixing seats comprise a seat ring and a base, the seat ring is arranged on the base, the steel bars are arranged in the seat rings of the two fixing seats in a penetrating mode, the base is of a T-shaped structure, the sliding grooves are of T-shaped sliding grooves, the base is arranged in the sliding grooves and is in sliding connection with the sliding grooves, the sliding grooves and the base are of T-shaped structures, and the structural strength of the fixing seats can be improved when the steel bars are lifted. The hand wheel drives the gear to rotate through the transmission gear set, the transmission gear set can change the transmission ratio, and the moment required by rotating the hand wheel is reduced. The end parts of the two shaft heads are provided with anti-falling screw caps, so that the clamping plates at the two sides are prevented from falling off.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the cross beam of the present utility model;

FIG. 3 is a top view of a beam of the present utility model;

FIG. 4 is a schematic view of a compressing member according to the present utility model;

FIG. 5 is a side cross-sectional view of a cross-beam in accordance with the present utility model;

FIG. 6 is a schematic view of a stepped shaft according to the present utility model;

FIG. 7 is a schematic diagram illustrating a mating structure of a chute and a fixing base according to a first embodiment of the present utility model;

fig. 8 is a schematic structural diagram of a second embodiment of the present utility model.

In the figure: 1-pulling machine, 101-frame, 102-crossbeam, 2-lifting belt, 3-clamping mechanism, 301-hole one, 302-gear, 303-hole two, 304-stepped shaft, 3041-shaft body, 3042-journal, 3043-spindle head, 305-hand wheel, 306-bearing, 4-clamping plate, 401-threaded hole, 5-chute, 6-fixing seat, 601-seat, 602-base, 7-reinforcing steel bar, 8-pressing piece, 801-supporting seat, 802-screw, 803-pressing rod, 804-transverse plate, 805-supporting seat, 806-pressing plate, 9-conical bulge, 10-transmission gear set, 11-anti-falling screw cap.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

referring to fig. 1-7, the steel bar bending device for detecting the quality of construction engineering provided by the utility model comprises a tension machine 1 and a hoisting belt 2, wherein the hoisting belt 2 can better contact with a steel bar 7, and the actual stress condition of the steel bar 7 in concrete is reduced. The tension machine 1 comprises a machine frame 101 and a beam 102 which is arranged on the machine frame 101 and can move up and down, a clamping mechanism 3 is respectively arranged at the left side and the right side of the beam 102, the clamping mechanism 3 comprises a first hole 301 formed in the upper end face of the beam 102, a gear 302 arranged in the first hole 301 and a second hole 303 formed in the side face of the beam 102, the second hole 303 penetrates through the first hole 301, a stepped shaft 304 is arranged in the second hole 303, the stepped shaft 304 comprises a shaft body 3041, two shaft necks 3042 respectively arranged at the two ends of the shaft body 3041 and two shaft heads 3043 respectively arranged at the two ends of the shaft necks 3042, the shaft body 3041 penetrates through the first hole 301 and is connected with a gear 302 in the inside of the shaft body, the driving gear 302 drives the stepped shaft 304 to rotate together, the gear 302 is driven by a hand wheel 305 through a driving gear set 10, the driving gear 302 can change a transmission ratio by the driving gear set 10, and torque required by the hand wheel 305 is lightened.

Two ends of the second hole 303 are respectively provided with a bearing 306, the two bearings 306 are respectively sleeved on shaft necks 3042 at two ends, two shaft heads 3043 are respectively provided with threads with opposite rotation directions, two sides of the beam 102 are respectively provided with a clamping plate 4, the clamping plates 4 are provided with threaded holes 401, the two shaft heads 3043 are respectively connected with the clamping plates 4 at two sides through the threaded holes 401, the hand wheel 305 is rotated to drive the gear 302 and the stepped shaft 304 to rotate together, when the shaft heads 3043 at two ends of the stepped shaft 304 rotate, the two side clamping plates 4 in threaded fit with the stepped shaft 304 only can move oppositely or away from each other under the action of the threads with opposite rotation directions, a clamping part is formed with the side surfaces of the beam 102 together, two ends of the lifting belt 2 are respectively clamped between the two side clamping plates 4 and the beam 102, two side surfaces of the beam 102 and the inner side surfaces of the two clamping plates 4 are respectively provided with a plurality of conical bulges 9, so that friction force is improved, and the plates 4 and the beam 102 can clamp the lifting belt 2 more firmly. The end parts of the two shaft heads 3043 are provided with anti-falling screw caps 11, so that the clamping plates 4 at the two sides are prevented from falling off, and the limiting effect is achieved.

The crossbeam 102 below sets up spout 5, and the spout 5 slides and is provided with two fixing bases 6, can adjust the position of reinforcing bar 7 stress point through the position that changes two fixing bases 6, and two fixing bases 6 all include seat circle 601 and base 602, and seat circle 601 sets up on base 602, and reinforcing bar 7 wears to establish in the seat circle 601 of two fixing bases 6, and base 602 is T shape structure, and spout 5 is T shape spout, and base 602 sets up in spout 5 rather than sliding connection, and spout 5 and base 602 are T shape structure, can improve the structural strength of fixing base 6 when lifting reinforcing bar 7.

The middle part symmetry of crossbeam 102 is provided with two and compresses tightly 8 for increase the clamping force at crossbeam 102 middle part, prevent because crossbeam 102 length overlength leads to middle part clamping force to reduce, hoist and mount area 2 drops. The two compacting pieces 8 comprise supporting seats 801, threaded rods 802 and compression rods 803, the bottoms of the supporting seats 801 are fixed on the cross beam 102, transverse plates 804 extending outwards are arranged at the tops of the supporting seats 801, supports 805 are arranged on the transverse plates 804, the threaded rods 802 are arranged on the supports 805 in a penetrating mode and are in threaded connection with the supports 805 in a penetrating mode, the end portions of the transverse plates 804 are connected with the middle portions of the compression rods 803 in a rotating mode, the bottoms of the threaded rods 802 can contact the upper half portions of the compression rods 803 and push the compression rods 803 to rotate, and the lower ends of the compression rods 803 can contact the outer end faces of the clamping plates 4. The lower end of the pressing rod 803 is connected with a pressing plate 806, which increases the contact area and prevents the clamping plate 4 from being scratched.

The working principle of this embodiment is as follows:

firstly, the steel bar 7 is inserted into the seat rings 601 of the two fixed seats 6, the distance between the two fixed seats 6 is adjusted according to the region to be detected of the steel bar 7, then the steel bar 7 is lifted by the lifting belt 2, the two end parts of the lifting belt 2 pass through gaps between the two side clamping plates 4 and the cross beam 102 from below, then the hand wheel 305 is rotated to enable the two side clamping plates 4 to move towards each other until the two end parts of the lifting belt 2 are firmly clamped, then the screw 802 of the pressing piece 8 is rotated, the bottom of the screw 802 is enabled to contact with the upper half part of the pressing rod 803 and push the pressing rod 803 to rotate, under the action of force, the lower end of the pressing rod 803 drives the pressing plate 806 to contact with the outer end face of the clamping plate 4, fastening force is applied to the pressing plate, the clamping plate 4 and the middle part of the cross beam 102 are tightly attached together, after the fixing is completed, the cross beam 102 is controlled to move upwards, and the lifting belt 2 drives the steel bar 7 to exert upward force, so that the actual bending stress condition of the steel bar is checked.

Embodiment two:

referring to fig. 8, the difference between the second embodiment and the first embodiment is that two lifting belts 2 are provided, and by adjusting the positions of the two fixing seats 6, a tensile test is performed on two ends of the reinforcing steel bar 7, so as to simulate the stress condition of the two ends of the reinforcing steel bar 7.

Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. A reinforcing bar bending device for building engineering quality detects, includes pulling force machine (1) and hoist and mount area (2), pulling force machine (1) include frame (101) and set up crossbeam (102) that can reciprocate on frame (101), its characterized in that: the left side and the right side of the beam (102) are respectively provided with a clamping mechanism (3), the clamping mechanism (3) comprises a first hole (301) or a groove which is formed in the upper end face of the beam (102), a gear (302) which is arranged in the first hole (301) or the groove, and a second hole (303) which is formed in the side face of the beam (102), wherein the second hole (303) penetrates through the first hole (301) or the groove, a stepped shaft (304) is arranged in the second hole (303), the stepped shaft (304) comprises a shaft body (3041), two shaft necks (3042) which are respectively arranged at the two ends of the shaft body (3041) and two shaft necks (3042) which are respectively arranged at the two ends of the shaft body (3042), the shaft body (3041) penetrates through the first hole (301) or the groove and is connected with a gear (302) in a matched mode, the gear (302) is driven by a hand wheel (305), two bearings (306) are respectively arranged at the two ends of the second hole (303), the two bearings (306) are respectively sleeved on the two shaft necks (3042) at the two ends, the two shaft necks (3044) are respectively screwed on the two sides of the two shaft necks (3044) respectively, threaded shafts (401) are respectively arranged on two sides of the two shaft necks (401) in a threaded mode, threaded clamp plate (401) is respectively, threaded hole (401) is respectively arranged on the two sides of the two shaft necks (401) respectively, the steel bar lifting device is characterized in that a sliding groove (5) is formed in the lower portion of the cross beam (102), two fixing seats (6) are arranged in the sliding groove (5) in a sliding mode, steel bars (7) can be arranged in the two fixing seats (6) in a penetrating mode, the steel bars (7) are lifted by the lifting belt (2), and two ends of the lifting belt (2) respectively penetrate through gaps between the cross beam (102) and clamping plates (4) on two sides of the cross beam.

2. The rebar bending device for quality inspection of construction engineering according to claim 1, wherein: the utility model discloses a crossbeam, including crossbeam (102), crossbeam (102) middle part symmetry is provided with two and compresses tightly piece (8), two compress tightly piece (8) all include supporting seat (801), screw rod (802) and depression bar (803), supporting seat (801) bottom is fixed on crossbeam (102), supporting seat (801) top is provided with diaphragm (804) of outside extension, be provided with support (805) on diaphragm (804), screw rod (802) wear to establish on support (805) and rather than threaded connection, diaphragm (804) tip and depression bar (803) middle part rotate and are connected, but screw rod (802) bottom contact depression bar (803) upper half and promote its rotation, but depression bar (803) lower extreme contact splint (4) outer terminal surface.

3. The rebar bending device for quality inspection of construction engineering according to claim 2, wherein: the lower end of the pressing rod (803) is connected with a pressing plate (806).

4. The rebar bending device for quality inspection of construction engineering according to claim 1, wherein: a plurality of conical bulges (9) are arranged on both sides of the beam (102) and the inner sides of the two clamping plates (4).

5. The rebar bending device for quality inspection of construction engineering according to claim 1, wherein: a plurality of lifting belts (2) can be arranged.

6. The rebar bending device for quality inspection of construction engineering according to claim 1, wherein: the two fixing seats (6) comprise a seat ring (601) and a base (602), the seat ring (601) is arranged on the base (602), the steel bars (7) are arranged in the seat rings (601) of the two fixing seats (6) in a penetrating mode, the base (602) is of a T-shaped structure, the sliding groove (5) is of a T-shaped sliding groove, and the base (602) is arranged in the sliding groove (5) and is in sliding connection with the sliding groove.

7. The rebar bending device for quality inspection of construction engineering according to claim 1, wherein: the hand wheel (305) drives the gear (302) to rotate through the transmission gear set (10).

8. The rebar bending device for quality inspection of construction engineering according to claim 1, wherein: the end parts of the two shaft heads (3043) are respectively provided with an anti-falling threaded cap (11).