Bending test device for composite bridge deck reinforcement member

Abstract

The utility model discloses a bending test device aiming at a combined bridge deck reinforcement member, which belongs to the technical field of combined bridge deck reinforcement tests and comprises a test box body, openings are arranged on the left side surface and the right side surface of the test box body, two protective doors are movably arranged at the positions of the openings, explosion-proof glass plates are fixedly mounted on the protective doors, and the explosion-proof glass plates are fixed on the test box body. A cylinder is fixedly mounted on the upper surface of the test box body; the end part of a piston rod of the cylinder extends into the test box body and is fixedly provided with a pressure head; the test box body is used in cooperation with the protective door and the explosion-proof glass plate, the bearing plate is located in the test box body and matched with the pressure head to conduct a bending test, the whole process is conducted in a closed mode, the good protective effect is achieved, the safety problem of splashing during breaking is effectively avoided, the bearing plate is provided with the multiple supporting bases, bending tests of multiple reinforcing bars can be conducted at the same time, and the test efficiency is improved. The test efficiency is improved, and synchronous bending tests of reinforcements of different specifications or differential tests of reinforcements of the same specification can be carried out.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of combined bridge deck slab matching test, concretely relates to a bending test device for the reinforcing member of combined bridge deck slab. BACKGROUND

[0002] The bridge deck slab, also called the driving lane slab, is a load-bearing structure directly bearing the wheel pressure of vehicles. In structure, it is usually connected with the beam rib and the transverse plate of the main beam as a whole, so that the vehicle load can be transmitted to the main beam, the main beam cross section can be formed, and the integral action of the main beam is ensured. The bridge deck slab is usually made of reinforced concrete and can be applied with transverse prestress.

[0003] In the construction process of the combined bridge deck slab, the performance of the internal reinforcing member is the most important, and various tests need to be carried out before the construction of the reinforcing member. The bending test is one of the key tests, the existing reinforcing bending test device cannot be isolated and protected when in use, the test is exposed to the working environment, and safety accidents may occur due to the collapse and splashing, and the device cannot be adaptively adjusted and used according to the length specifications of the reinforcing test piece, so there is certain limitation in use. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a bending test device for the reinforcing member of combined bridge deck slab, so as to solve the problem that the existing reinforcing bending test device cannot be isolated and protected when in use, the test is exposed to the working environment, safety accidents may occur due to the collapse and splashing, and the device cannot be adaptively adjusted and used according to the length specifications of the reinforcing test piece, so there is certain limitation in use.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of bending test device for combined bridge deck slab reinforcement component, including test box body, the left and right two sides of the test box body are all provided with opening, and two protective doors are movably arranged at opening position, explosion-proof glass plate is fixedly installed on the protective door, air cylinder is fixedly installed on the upper surface of the test box body, the piston rod end of the air cylinder extends to the inside of test box body and fixedly installs pressure head, load-bearing plate is fixedly installed in the inside of the test box body, the lower surface of the load-bearing plate is fixedly installed with two fixed blocks one, the side surface of one of the fixed blocks one is fixedly installed with motor, two fixed blocks one are rotatably installed with bidirectional screw rod, the output shaft of the motor is fixedly connected with bidirectional screw rod, the two threaded outer surfaces of the bidirectional screw rod are all screw-mounted with threaded plate, mounting bracket is fixedly installed on the threaded plate, the upper surface of the mounting bracket is fixedly installed with several support seats, load-bearing roller is rotatably installed in the inside of the support seat, two fixed seats are arranged in the inside of the support seat, one of the fixed seats is fixedly installed in the inner wall of support seat, and the other fixed seat is movably arranged in the inside of support seat, the inner wall of two support seats is rotatably installed with anti-deviation roller.

[0006] By using the test box body in cooperation with the protective door and the explosion-proof glass plate, the load-bearing plate is located in the test box body and performs bending test in cooperation with the pressure head, the whole process is closed, good protection effect is achieved, the splashing safety problem caused by breaking is effectively avoided, the load-bearing plate has a plurality of support seats, bending test of a plurality of reinforcements can be simultaneously performed, test efficiency is improved, synchronous bending test of reinforcements of different specifications or differential test of reinforcements of the same specification can be performed, the bidirectional screw rod is used in cooperation with the threaded plate and the mounting bracket, the distance between the two mounting brackets can be adjusted, reinforcements of different lengths can be used for bearing, use versatility is improved, the fixed seat is used in cooperation with the anti-deviation roller, the reinforcement can be fixedly clamped and prevented from deviating, deviation and misalignment during pressing and bending are avoided, and test accuracy is affected.

[0007] In the above scheme, it should be noted that the motor and the air cylinder are electrically connected with the external power supply.

[0008] As a preferred embodiment, the side of the protective door facing the test box body is fixedly installed with a trapezoidal sliding block, a trapezoidal sliding groove is formed in the side of the test box body for sliding of the trapezoidal sliding block, a fixed block two is fixedly installed on the side of the protective door, a limiting rod is fixedly installed on the side of the fixed block two, and a limiting groove is formed in the side of the test box body for insertion of the limiting rod.

[0009] Adopting the above scheme, the trapezoidal slider slides in the trapezoidal sliding groove, the movement of the protective door can be supported, the stable sliding of the protective door can be ensured, and the protective door and the test box body can be prevented from being separated, the fixed block two and the limiting rod are used in cooperation, the limiting rod is inserted into the limiting groove when the protective door is closed, and the protective door and the test box body can be prevented from being separated.

[0010] As a preferred implementation form, the upper surface of the protective door is rotationally installed with a clamping plate, the clamping plate is provided with a clamping hole, and the upper surface of the test box body is fixedly installed with a plurality of clamping rods.

[0011] Adopting the above scheme, the clamping plate and the clamping rod are used in cooperation, the locking operation of the sliding opening and the sliding closing of the protective door can be realized, the locking structure is simple, and the operation is convenient.

[0012] As a preferred implementation form, the side surface of the bearing plate is fixedly installed with a trapezoidal strip, the inner wall of the mounting frame is provided with a trapezoidal groove, and the trapezoidal strip and the trapezoidal groove are used in cooperation.

[0013] Adopting the above scheme, the trapezoidal strip is used in cooperation with the trapezoidal groove, the movement support effect of the mounting frame is achieved, the movement stability is improved, and the shaking phenomenon is prevented.

[0014] As a preferred implementation form, the side surface of the support base is screw-installed with a lead screw, one end of the lead screw is fixedly installed with a knob, and the other end of the lead screw is rotationally connected with the side surface of the movably arranged fixing base.

[0015] Adopting the above scheme, the knob is used to drive the lead screw to rotate, and then the movably arranged fixing base is driven to move, so that the distance between the two anti-deviation rollers on the two sides can be adjusted, and the reinforcement with different thicknesses can be clamped.

[0016] As a preferred implementation form, the upper and lower sides of the lead screw are fixedly installed with telescopic rods, and the two ends of the telescopic rods are fixedly connected with the side surface of the movably arranged fixing base and the inner wall of the support base.

[0017] Adopting the above scheme, the telescopic rods can be used to support the movably arranged fixing base by the telescopic characteristics, the movement stability is improved, and the shaking is prevented.

[0018] Compared with the prior art, the protective door and the test box body can be prevented from being separated, the movement of the protective door can be supported, the stable sliding of the protective door can be ensured, the locking operation of the sliding opening and the sliding closing of the protective door can be realized, the locking structure is simple, the operation is convenient, the telescopic rods can be used to support the movably arranged fixing base by the telescopic characteristics, the movement stability is improved, and the shaking is prevented.

[0019] The bending test device for the reinforcing member of the combined bridge deck plate is used in cooperation with the test box body, the protection door and the explosion-proof glass plate, the bearing plate is located in the test box body and cooperates with the pressure head to perform the bending test, the whole process is closed, good protection effect is achieved, the splashing safety problem during the collapse is avoided, the bearing plate has a plurality of supporting seats, the bending test of multiple reinforcing bars can be performed at the same time, the test efficiency is improved, and the synchronous bending test of different specifications of reinforcing bars or the differential test of the same specification of reinforcing bars can be performed.

[0020] The bending test device for the reinforcing member of the combined bridge deck plate is used in cooperation with the test box body, the protection door and the explosion-proof glass plate, the bearing plate is located in the test box body and cooperates with the pressure head to perform the bending test, the whole process is closed, good protection effect is achieved, the splashing safety problem during the collapse is avoided, the bearing plate has a plurality of supporting seats, the bending test of multiple reinforcing bars can be performed at the same time, the test efficiency is improved, and the synchronous bending test of different specifications of reinforcing bars or the differential test of the same specification of reinforcing bars can be performed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the utility model;

[0022] Figure 2 It is a structural schematic view of the test box body of the utility model;

[0023] Figure 3 It is a structural schematic view of the protection door of the utility model;

[0024] Figure 4 It is a structural schematic view of the bearing plate of the utility model;

[0025] Figure 5 It is a structural schematic view of the bearing plate of the utility model from another angle;

[0026] Figure 6 It is a structural schematic view of the supporting seat of the utility model.

[0027] In the drawing: 1, test box body; 2, protection door; 3, explosion-proof glass plate; 4, air cylinder; 5, pressure head; 6, bearing plate; 7, fixed block one; 8, motor; 9, bidirectional threaded rod; 10, threaded plate; 11, mounting rack; 12, supporting seat; 13, bearing roller; 14, fixed seat; 15, anti-deviation roller; 16, trapezoidal slide block; 17, fixed block two; 18, limiting rod; 19, clamping plate; 20, clamping rod; 21, trapezoidal strip; 22, lead screw; 23, telescopic rod. DETAILED DESCRIPTION

[0028] Please refer to Figures 1-6The utility model provides a kind of bending test device for combined bridge deck slab reinforcing member, including test box 1, the left and right two sides of the test box 1 all have opening, and opening position place movably provided with two protective doors 2, the protective door 2 is fixedly installed with explosion -proof glass plate 3, the upper surface of the test box 1 is fixedly installed with cylinder 4, the piston rod end of the cylinder 4 extends to test box 1 inside and is fixedly installed with pressure head 5, the inside of the test box 1 is fixedly installed with bearing plate 6, the lower surface of the bearing plate 6 is fixedly installed with two fixed blocks one 7, the side surface of one of the fixed blocks one 7 is fixedly installed with motor 8, two The fixed block one 7 is rotatably installed with bidirectional screw rod 9, the output shaft of the motor 8 is fixedly connected with bidirectional screw rod 9, the two threaded outer surfaces of the bidirectional screw rod 9 are all screw-mounted with threaded plate 10, the threaded plate 10 is fixedly installed with mounting bracket 11, the upper surface of the mounting bracket 11 is fixedly installed with several support seats 12, the inside of the support seat 12 is rotatably installed with bearing roller 13, the inside of the support seat 12 is provided with two fixed seats 14, one of the fixed seats 14 is fixedly installed in the inner wall of support seat 12, another fixed seat 14 is movably arranged in the inside of support seat 12, the inner wall of two The support seat 12 is rotatably installed with anti-deviation roller 15.

[0029] By setting test box 1 cooperation protective door 2 and explosion -proof glass plate 3 use, bearing plate 6 is located in test box 1 inside cooperation pressure head 5 carries out bending test, whole process is closed, plays good protective effect, effectively avoid the splashing safety problem when breaking down, and bearing plate 6 has multiple support seats 12, can carry out the bending test of multiple reinforcing simultaneously, improve test efficiency, and can carry out the synchronous bending test of different specifications reinforcing or the differentiation test of same specification reinforcing, by setting bidirectional screw rod 9 cooperation threaded plate 10 and mounting bracket 11 use, can adjust the distance of two sides mounting bracket 11, can be used to bear reinforcing of different lengths, improve the universality of use, and utilize fixed seat 14 cooperation anti-deviation roller 15 use, can be fixedly clamped reinforcing and prevent deviation, avoid the phenomenon of running deviation misplacement when pressing and holding bending and affect test accuracy.

[0030] The trapezoidal slide block 16 is fixedly installed on one side of the protective door 2, and a trapezoidal sliding groove is formed in the side of the test box 1 for the trapezoidal slide block 16 to slide in, the second fixing block 17 is fixedly installed on the side of the protective door 2, the limiting rod 18 is fixedly installed on the side of the second fixing block 17, and a limiting groove is formed in the side of the test box 1 for the limiting rod 18 to insert into, the trapezoidal slide block 16 slides in the trapezoidal sliding groove, can support the movement of the protective door 2, can ensure the stable sliding of the protective door 2, and can avoid the separation of the protective door 2 from the test box 1, the second fixing block 17 and the limiting rod 18 are used in cooperation, the limiting rod 18 is inserted into the limiting groove when the protective door 2 is closed, and the separation of the protective door 2 from the test box 1 can be avoided.

[0031] The clamping plate 19 is rotatably installed on the upper surface of the protective door 2, the clamping plate 19 is provided with a clamping hole, and the test box 1 is fixedly installed with a plurality of clamping rods 20 on the upper surface, the clamping rod 20 and the clamping hole are used in cooperation, and the clamping plate 19 and the clamping rod 20 are used in cooperation, so that the locking operation of the sliding opening and the sliding closing of the protective door 2 can be realized, the locking structure is simple, and the operation is convenient.

[0032] The trapezoidal strip 21 is fixedly installed on the side of the bearing plate 6, and the inner wall of the mounting frame 11 is provided with a trapezoidal groove, the trapezoidal strip 21 and the trapezoidal groove are used in cooperation, the trapezoidal strip 21 is used in cooperation with the trapezoidal groove, the movement support effect of the mounting frame 11 is achieved, the movement stability is improved, and the shaking phenomenon is prevented.

[0033] The lead screw 22 is threadedly installed on the side of the support base 12, one end of the lead screw 22 is fixedly installed with a knob, the other end of the lead screw 22 is rotatably connected to the side of the movably arranged fixing seat 14, the knob is used to drive the lead screw 22 to rotate, and then the movably arranged fixing seat 14 is driven to move, so that the distance between the two anti-deviation rollers 15 on the two sides can be adjusted, and the reinforcement with different thicknesses can be clamped.

[0034] The telescopic rods 23 are fixedly installed on the upper and lower sides of the lead screw 22, the two ends of the telescopic rods 23 are respectively fixedly connected to the side of the movably arranged fixing seat 14 and the inner wall of the support base 12, the telescopic rods 23 have the telescopic characteristics, can support the movably arranged fixing seat 14, improve the movement stability, and prevent shaking.

[0035] In use, the card plate 19 is rotated to make the card plate 19 disengaged from the card rod 20, the protective door 2 is unlocked and slid to open the protective door 2, the protective door 2 is opened again, the card plate 19 is rotated to make the card plate 19 and the card rod 20 complete clamping, at this time the protective door 2 is opened and locked, then the two mounting racks 11 are adjusted according to the length of the reinforcement to be bent, the motor 8 is started during adjustment, the motor 8 drives the bidirectional screw rod 9 to rotate, and then drives the two threaded plates 10 to move relatively, so as to drive the two mounting racks 11 to move relatively, the motor 8 is stopped after being adjusted to the appropriate distance position, then the two ends of the reinforcement are passed through the two support seats 12 opposite to each other, and the load roller 13 is used for bearing, the knob is rotated to drive the lead screw 22 to rotate, and then the fixed seat 14 movably arranged is driven to move, so that the two anti-deviation rollers 15 clamp and prevent deviation of the reinforcement, then the card plate 19 is rotated to unlock the protective door 2, the protective door 2 is slid to close, the card plate 19 is rotated again to lock the protective door 2, the cylinder 4 is started to drive the pressure head 5 to move downward, the movement of the pressure head 5 realizes the bending test of the reinforcement, and the test process is observed through the explosion-proof glass plate 3.

Claims

1. A bending test apparatus for a reinforcing member of a composite bridge deck slab, characterized by: Including test box (1), both sides of test box (1) both sides have opening, and opening position is movably provided with two protective doors (2), protective door (2) is fixedly installed with explosion -proof glass plate (3), the upper surface of test box (1) is fixedly installed with cylinder (4), the piston rod end of cylinder (4) extends to test box (1) inside and is fixedly installed with pressure head (5), the inside of test box (1) is fixedly installed with bearing plate (6), the lower surface of bearing plate (6) is fixedly installed with two fixed blocks one (7), the side of one of fixed block one (7) is fixedly installed with motor (8), two fixed blocks one (7) are rotatably installed with two-way threaded rod (9), the output shaft of motor (8) is fixedly connected with two-way threaded rod (9), the threaded outer surface of two sections of two-way threaded rod (9) is all threadedly installed with threaded plate (10), threaded plate (10) is fixedly installed with mounting bracket (11), the upper surface of mounting bracket (11) is fixedly installed with a plurality of support seats (12), the inside of support seat (12) is rotatably installed with bearing roller (13), the inside of support seat (12) is provided with two fixed seats (14), one of fixed seat (14) is fixedly installed in the inner wall of support seat (12), and the other fixed seat (14) is movably arranged in the inside of support seat (12), the inner wall of two support seats (12) is rotatably installed with anti-deviation roller (15).

2. The apparatus for bending test of the reinforcing member for composite bridge deck slab according to claim 1, characterized in that: The side of protective door (2) towards test box (1) is fixedly installed with trapezoidal slide block (16), the side of test box (1) is provided with trapezoidal slide groove for the sliding of trapezoidal slide block (16), the side of protective door (2) is fixedly installed with fixed block two (17), the side of fixed block two (17) is fixedly installed with limiting rod (18), the side of test box (1) is provided with limiting slot for the insertion of limiting rod (18).

3. The apparatus for bending test of reinforcement members for composite bridge deck slabs according to claim 1, characterized in that: The upper surface of protective door (2) is rotatably installed with clamping plate (19), the clamping plate (19) has a bayonet, the upper surface of test box (1) is fixedly installed with a plurality of clamping rods (20), the clamping rod (20) and the bayonet are used in cooperation.

4. The apparatus for bending test of reinforcement members for composite bridge deck slabs according to claim 1, characterized in that: The side of bearing plate (6) is fixedly installed with trapezoidal strip (21), the inner wall of mounting bracket (11) is provided with trapezoidal groove, and the trapezoidal strip (21) and the trapezoidal groove are used in cooperation.

5. The apparatus for bending test of reinforcement members for composite bridge deck slabs according to claim 1, characterized in that: The side of support seat (12) is threadedly installed with lead screw (22), one end of lead screw (22) is fixedly installed with knob, the other end of lead screw (22) is rotatably connected with the side of movably arranged fixed seat (14).

6. The apparatus for bending test of a reinforcing member for a composite bridge deck panel according to claim 5, characterized in that: The upper and lower sides of lead screw (22) are fixedly installed with telescopic rod (23), and the two ends of telescopic rod (23) are respectively fixedly connected with the side of movably arranged fixed seat (14) and the inner wall of support seat (12).

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