Corrugated steel guardrail plate detection device for highway guardrail

Abstract

The utility model relates to a corrugated steel guardrail plate detection device of an expressway guardrail, which comprises a base, two groups of guardrail clamping mechanisms and a detection mechanism, a sliding chute is arranged on the base, and a group of electric screw rod mechanisms is arranged in the sliding chute; the guardrail clamping mechanism is installed in the sliding groove in a sliding mode, the electric lead screw mechanism is in threaded connection with the guardrail clamping mechanism, and the electric lead screw mechanism drives the guardrail clamping mechanism to slide along the sliding groove. The bottom end of the detection mechanism is installed on the base, and a detection hammer of the detection mechanism is located over the sliding groove. The two guardrail clamping mechanisms clamp the two ends of the corrugated steel guardrail plate respectively, and a detection hammer of the detection mechanism vertically applies pressure to the middle of the corrugated steel guardrail plate from top to bottom. The device has the beneficial effects that the distance between the two guardrail clamping mechanisms can be conveniently adjusted according to the length of the corrugated steel guardrail plate; the first hydraulic cylinder extends to enable the rubber pressing block and the rubber base plate to be matched to clamp the head of the corrugated steel guardrail plate; the detection process is safe, and damage to the surface of the corrugated steel guardrail plate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of highway guardrail inspection technology, and in particular to a device for inspecting corrugated steel guardrail panels of highway guardrails. Background Technology

[0002] Highways are roads specifically designed for high-speed vehicle travel. Due to the high speeds on highways, corrugated guardrails are installed on both sides to prevent vehicles from running off the road, protecting vehicles and passengers and reducing accident losses. Corrugated guardrails mainly consist of posts and corrugated steel guardrail panels installed between two adjacent posts. To ensure the quality of the corrugated steel guardrail panels, they need to be tested. However, existing testing equipment has the following problems: 1. To simulate a real installation scenario, the corrugated guardrail panels are installed between two posts for testing, which is cumbersome to install and dismantle; 2. Using a pendulum for impact testing is dangerous and can damage the surface of the corrugated steel guardrail panels, affecting the sale of qualified products. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned problems in the existing technology and provide a detection device for corrugated steel guardrail panels of highway guardrails.

[0004] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0005] A testing device for corrugated steel guardrail panels of highway guardrails, comprising:

[0006] A base, wherein a sliding groove is provided on the base along the long axis of the base, and a set of electric lead screw mechanisms are installed in the sliding groove;

[0007] Two sets of symmetrically arranged guardrail clamping mechanisms are slidably installed in the slide groove. The electric screw mechanism is screwed to the guardrail clamping mechanism and drives the guardrail clamping mechanism to slide along the slide groove.

[0008] The testing mechanism has its bottom end mounted on a base, and its testing hammer is located directly above the slide groove.

[0009] The two sets of guardrail clamping mechanisms respectively clamp the two ends of the corrugated steel guardrail plate, and the detection hammer of the detection mechanism applies vertical pressure to the middle of the corrugated steel guardrail plate from top to bottom.

[0010] Among them, the base includes a rectangular bottom plate, multiple parallel I-beams, and two symmetrical slide rails. The I-beams are welded to the bottom end of the bottom plate. The cross-section of the slide rail is L-shaped, and the slide rail is installed on the top end of the bottom plate with bolts. A chute with a "convex" cross-section is formed between the top end of the bottom plate and the two slide rails.

[0011] Among them, the electric screw rod mechanism includes a motor mounting plate, a servo motor, a double-headed screw rod, and multiple sets of pedestal bearings. The motor mounting plate is vertically installed at one end of the top end of the bottom plate, and the servo motor is installed on the motor mounting plate; multiple sets of the pedestal bearings are respectively installed on the bottom plate in the chute with screws. The double-headed screw rod is rotatably installed in the pedestal bearings, and one end of the double-headed screw rod is connected to the power output shaft of the servo motor through a coupling.

[0012] Among them, the guardrail clamping mechanism includes a slider and a first U-shaped steel column. A threaded hole screwed with the double-headed screw rod is opened in the middle of the slider. The slider is slidably matched with the chute. The first U-shaped steel column is vertically welded to the top end of the slider. A lower clamping plate and an upper mounting plate perpendicular to the first U-shaped steel column are welded to the front of the first U-shaped steel column. A rubber cushion plate is installed at the top end of the lower clamping plate, and a first hydraulic cylinder is installed at the top end of the upper mounting plate. The bottom end of the piston rod of the first hydraulic cylinder is installed with an upper clamping plate, and a rubber pressing block matched with the front groove of the highway guardrail is installed at the bottom end of the upper clamping plate.

[0013] Preferably, N guide rods arranged in a rectangular array are installed at the top end of the upper clamping plate, and N guide holes arranged in a rectangular array are opened on the upper mounting plate. The guide rods are sleeved in the guide holes one by one.

[0014] Among them, the detection mechanism includes a lower mounting plate, a second U-shaped steel column, and a U-shaped steel cross beam. The second U-shaped steel column is vertically welded to the top end of the lower mounting plate. The lower mounting plate is connected to the base with bolts. The U-shaped steel cross beam is vertically welded to the front of the second U-shaped steel column. A second hydraulic cylinder and a digital display are installed at the top end of the U-shaped steel cross beam. The end of the piston rod of the second hydraulic cylinder is installed with a pressure sensor. A detection hammer is installed at the bottom end of the pressure sensor. The signal output end of the pressure sensor is connected to the signal input end of the digital display through a data cable.

[0015] Preferably, a first reinforcing plate is welded between the back of the second U-shaped steel column and the lower mounting plate, and a second reinforcing plate is welded between the top end of the U-shaped steel cross beam and the front of the second U-shaped steel column.

[0016] The beneficial effects of this utility model are as follows: The base, electric screw mechanism, and two sets of guardrail clamping mechanisms work together to adjust the distance between the two sets of clamping mechanisms according to the length of the corrugated steel guardrail panel; the extension of the first hydraulic cylinder causes the rubber pressure block and rubber pad to clamp the head of the corrugated steel guardrail panel; the extension of the second hydraulic cylinder drives the detection hammer to move downwards to apply pressure to the middle of the corrugated steel guardrail panel; the pressure sensor monitors the pressure value change and displays it on a digital display, allowing inspectors to intuitively observe the test results; the testing process is safe and reduces damage to the surface of the corrugated steel guardrail panel. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the detection device for corrugated steel guardrail panels of highway guardrails that is fitted with highway guardrails in this utility model.

[0019] Figure 2 This is a front view structural schematic diagram of the corrugated steel guardrail plate detection device for highway guardrails that is clamped with highway guardrails in this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the corrugated steel guardrail detection device for highway guardrails in this utility model;

[0021] Figure 4 This is a schematic diagram of the base structure in this utility model;

[0022] Figure 5 This is a schematic diagram of the electric lead screw mechanism in this utility model;

[0023] Figure 6 This is a schematic diagram of the guardrail clamping mechanism in this utility model;

[0024] Figure 7 This is a first-person view structural diagram of the testing mechanism in this utility model;

[0025] Figure 8 This is a structural schematic diagram of the detection mechanism in this utility model from a second perspective;

[0026] The numbers in the diagram are as follows: base 1, base plate 11, I-beam 12, slide rail 13, slide groove 14;

[0027] 2. Electric lead screw mechanism, 21. Motor mounting plate, 22. Servo motor, 23. Double-ended lead screw, 24. Multiple sets of bearings with seats;

[0028] Guardrail clamping mechanism 3, slider 31, first U-shaped steel column 32, screw hole 33, lower clamping plate 34, upper mounting plate 35, rubber cushion plate 36, first hydraulic cylinder 37, upper clamping plate 38, rubber pressing block 39, guide rod 310, guide hole 311;

[0029] Detection mechanism 4, lower mounting plate 41, second U-shaped steel column 42, U-shaped steel cross beam 43, second hydraulic cylinder 44, digital display 45, pressure sensor 46, detection hammer 47, first reinforcement plate 48, second reinforcement plate 49;

[0030] Corrugated steel guardrail plate 100. Specific implementation mode

[0031] The present utility model will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] As Figures 1 to 8 shown, a detection device for a corrugated steel guardrail plate of a highway guardrail includes: a base 1, two groups of symmetrically arranged guardrail clamping mechanisms 3, and a detection mechanism 4.

[0033] The base 1 includes a rectangular bottom plate 11, multiple mutually parallel I-beams 12, and two symmetric slide rails 13. The I-beams 12 are welded to the bottom end of the bottom plate 11. The cross-section of the slide rail 13 is L-shaped, and the slide rail 13 is bolted to the top end of the bottom plate 11.

[0034] A chute 14 is provided on the base 1 along the long axis of the base. Specifically, a chute 14 with a "convex" cross-section is formed between the top end of the bottom plate 11 and the two slide rails 13.

[0035] A set of electric screw rod mechanisms 2 is installed in the chute 14. The electric screw rod mechanisms 2 include a motor mounting plate 21, a servo motor 22, a double-headed screw rod 23, and multiple groups of pedestal bearings 24. The motor mounting plate 21 is vertically installed at one end of the top end of the bottom plate 11, and the servo motor 22 is installed on the motor mounting plate 21; multiple groups of pedestal bearings 24 are respectively screwed to the bottom plate 11 in the chute 14, and the double-headed screw rod 23 is rotatably installed in the pedestal bearings 24. One end of the double-headed screw rod 23 is connected to the power output shaft of the servo motor 22 through a coupling.

[0036] The guardrail clamping mechanism 3 is slidably installed in the slide groove 14. The electric screw mechanism 2 is screwed to the guardrail clamping mechanism 3, and the electric screw mechanism 2 drives the guardrail clamping mechanism 3 to slide along the slide groove 14. Specifically, the guardrail clamping mechanism 3 includes a slider 31 and a first U-shaped steel column 32. The middle part of the slider 31 has a screw hole 33 that is screwed to the double-ended screw 23. The slider 31 is slidably engaged with the slide groove 14. The first U-shaped steel column 32 is vertically welded to the top of the slider 31. The front of the first U-shaped steel column 32 is welded with a lower clamping plate 34 and an upper mounting plate 35 that are perpendicular to the first U-shaped steel column 32. A rubber pad 36 is installed at the top of the lower clamping plate 34. A first hydraulic cylinder 37 is installed at the top of the upper mounting plate 35. An upper clamping plate 38 is installed at the bottom of the piston rod of the first hydraulic cylinder 37. A rubber pressure block 39 that mates with the groove on the front of the highway guardrail 100 is installed at the bottom of the upper clamping plate 38.

[0037] To improve the stability of the upper clamping plate 38 during its up-and-down movement, N guide rods 310 arranged in a rectangular array are installed at the top of the upper clamping plate 38. N guide holes 311 arranged in a rectangular array are opened on the upper mounting plate 35, and the guide rods 310 are fitted into the guide holes 311 one by one.

[0038] The bottom end of the detection mechanism 4 is mounted on the base 1, and the detection hammer of the detection mechanism 4 is located directly above the slide groove 14. Specifically, the detection mechanism 4 includes a lower mounting plate 41, a second U-shaped steel column 42, and a U-shaped steel beam 43. The second U-shaped steel column 42 is vertically welded to the top of the lower mounting plate 41, and the lower mounting plate 41 is bolted to the base 1. The U-shaped steel beam 43 is vertically welded to the front of the second U-shaped steel column 42. A second hydraulic cylinder 44 and a digital display 45 are mounted on the top of the U-shaped steel beam 43. A pressure sensor 46 is mounted on the end of the piston rod of the second hydraulic cylinder 44, and a detection hammer 47 is mounted on the bottom of the pressure sensor 46. The signal output terminal of the pressure sensor 46 is connected to the signal input terminal of the digital display 45 via a data cable.

[0039] To improve the stability of the welding between the second U-shaped steel column 42 and the lower mounting plate 41 and the U-shaped steel beam 43, a first reinforcing plate 48 is welded between the back of the second U-shaped steel column 42 and the lower mounting plate 41, and a second reinforcing plate 49 is welded between the top of the U-shaped steel beam 43 and the front of the second U-shaped steel column 42.

[0040] During testing, the base, electric screw mechanism, and two sets of guardrail clamping mechanisms are used in conjunction. The distance between the two sets of guardrail clamping mechanisms is adjusted according to the length of the corrugated steel guardrail panel. The two ends of the corrugated steel guardrail panel 100 are placed on the rubber pads of the two sets of guardrail clamping mechanisms 3. The extension of the first hydraulic cylinder causes the rubber pressure block to cooperate with the rubber pads to clamp the head of the corrugated steel guardrail panel, thereby clamping the two ends of the corrugated steel guardrail panel 100 by the two sets of guardrail clamping mechanisms 3. The extension of the second hydraulic cylinder drives the testing hammer to move downward, so that the testing hammer of the testing mechanism 4 applies vertical pressure to the middle of the corrugated steel guardrail panel 100 from top to bottom. The pressure value change is monitored by the pressure sensor and displayed on the digital display, which allows the testing personnel to intuitively observe the test results. The testing process is safe and reduces damage to the surface of the corrugated steel guardrail panel.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for detecting corrugated steel barrier panels of a highway guardrail, characterized in that The utility model provides a kind of highway guardrail automatic testing device, including: Base, which is provided with a sliding groove arranged along the long axis of the base, a set of electric screw rod mechanisms are installed in the sliding groove; Two sets of symmetrically arranged guardrail clamping mechanisms are slidingly installed in the sliding groove, the electric screw rod mechanisms are screwed with the guardrail clamping mechanisms, and the electric screw rod mechanisms drive the guardrail clamping mechanisms to slide along the sliding groove; A detection mechanism is installed at the bottom end of the base, and the detection hammer of the detection mechanism is located directly above the sliding groove; Two sets of guardrail clamping mechanisms clamp the two ends of the corrugated steel guardrail plate respectively, and the detection hammer of the detection mechanism vertically presses the middle part of the corrugated steel guardrail plate from top to bottom.

2. The corrugated steel guardrail panel inspection apparatus of claim 1, wherein: The base includes a rectangular bottom plate, a plurality of parallel I-beams, and two symmetric sliding rails, the I-beams are welded at the bottom end of the bottom plate, the cross section of the sliding rails is L-shaped, the sliding rails are bolted at the top end of the bottom plate, and the cross section of the sliding groove formed between the top end of the bottom plate and the two sliding rails is "convex".

3. The corrugated steel beam barrier detection device of claim 2, wherein: The electric screw rod mechanism includes a motor mounting plate, a servo motor, a double-headed screw rod, and a plurality of bearing seats, the motor mounting plate is vertically installed at one end of the top end of the bottom plate, the servo motor is installed on the motor mounting plate, the bearing seats are respectively screwed on the bottom plate in the sliding groove, the double-headed screw rod is rotatably installed in the bearing seat, and one end of the double-headed screw rod is connected with the power output shaft of the servo motor through a coupling.

4. The corrugated steel beam barrier detection device of claim 3, wherein: The guardrail clamping mechanism includes a sliding block and a first U-shaped steel column, a screw hole for screwing with the double-headed screw rod is formed in the middle part of the sliding block, the sliding block is slidingly matched with the sliding groove, the first U-shaped steel column is vertically welded at the top end of the sliding block, the front surface of the first U-shaped steel column is welded with a lower clamping plate and an upper mounting plate, the top end of the lower clamping plate is provided with a rubber pad, the top end of the upper mounting plate is provided with a first hydraulic cylinder, the bottom end of the piston rod of the first hydraulic cylinder is provided with an upper clamping plate, and the bottom end of the upper clamping plate is provided with a rubber pressing block matched with the front recess of the highway guardrail.

5. The corrugated steel beam barrier detection device of claim 4, wherein: The top end of the upper clamping plate is provided with N guide rods arranged in a rectangular array, N guide holes arranged in a rectangular array are formed in the upper mounting plate, and the guide rods are one-to-one matched with the guide holes.

6. The corrugated steel beam barrier detection apparatus of claim 1, wherein: The detection mechanism includes a lower mounting plate, a second U-shaped steel column, and a U-shaped steel beam, the second U-shaped steel column is vertically welded at the top end of the lower mounting plate, the lower mounting plate is connected with the base through bolts, the U-shaped steel beam is vertically welded at the front surface of the second U-shaped steel column, the top end of the U-shaped steel beam is provided with a second hydraulic cylinder and a digital display, the bottom end of the piston rod of the second hydraulic cylinder is provided with a pressure sensor, the bottom end of the pressure sensor is provided with a detection hammer, and the signal output end of the pressure sensor is connected with the signal input end of the digital display through a data line.

7. The corrugated steel beam barrier detection apparatus of claim 6, wherein: The first reinforcing plate is welded between the back surface of the second U-shaped steel column and the lower mounting plate, and the second reinforcing plate is welded between the top end of the U-shaped steel beam and the front surface of the second U-shaped steel column.

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