Assembly type bridge structure high support point shear bearing capacity detection equipment

Abstract

The utility model relates to an equipment for detecting high fulcrum shearing bearing capacity of assembly type bridge structure, include: base, the left and right sides of base are connected with support plate through bolt respectively, and the top of base is close to the rear side place and is connected with the translation plate of sliding, the sliding connection of two translation plates has the lifting plate, and the front side of lifting plate is pasted with fixed sheet. The utility model has the advantages that: through the mutual cooperation between rotating plate, electric jar, detection plate, spacing square tube and rotating disc etc. parts, can effectively avoid using different equipment to carry out the detection of horizontal shearing bearing capacity and vertical shearing bearing capacity, so that it can effectively adjust the direction of detection plate, and then it can carry out the switching detection of horizontal shearing bearing capacity and vertical shearing bearing capacity, improve its detection efficiency and use efficiency, and can effectively detect in different directions, so that it can carry out effective comprehensive detection, improve its detection range and work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated bridge technology, specifically to a device for testing the shear bearing capacity of high supports of prefabricated bridge structures. Background Technology

[0002] The high-support shear capacity testing equipment for prefabricated bridge structures is a professional instrument system for evaluating the shear performance of bridge joints. It tests the bearing capacity of supports or joints under combined compression and shear conditions by simulating the combined action of vertical pressure and horizontal shear force.

[0003] In existing technologies, the high-support shear bearing capacity testing equipment for prefabricated bridge structures uses different devices to test the lateral and vertical shear bearing capacity. This prevents effective adjustment of the test plate's orientation, thus hindering the switching between lateral and vertical shear bearing capacity testing. This reduces testing and operational efficiency, and the inability to effectively test in different directions limits comprehensive testing, reducing the testing scope and work efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application proposes a testing device for the shear bearing capacity of high supports in prefabricated bridge structures, which can switch between testing lateral and vertical shear bearing capacity, effectively improving its testing range.

[0005] This utility model provides the following technical solution: a prefabricated bridge structure high-support shear bearing capacity testing device, comprising: a base, support plates connected to the left and right sides of the base by bolts, a sliding plate slidably connected to the top of the base near the rear side, a lifting plate slidably connected between the two sliding plates, a fixing plate attached to the front side of the lifting plate, a rotating plate movably connected to the front side of the fixing plate by a rotating shaft and bearing, a servo motor connected to the rear wall of the lifting plate by bolts, a through hole in the lifting plate, and the rear end of the rotating shaft on the rear wall of the rotating plate passing through the inner ring of the bearing and connected to the output shaft of the servo motor, an electric cylinder movably connected to the front wall of the rotating plate near the right side, and a detection plate connected to the left end of the push rod on the electric cylinder by bolts, a limiting square tube sleeved on the detection plate, and a rotating disk connected to the rear wall of the limiting square tube by bolts, the rear wall of the rotating disk movably connected to the front wall of the rotating disk by a rotating shaft and bearing.

[0006] As a preferred embodiment of this utility model, a toggle lever is movably connected to the rear wall of the electric cylinder near the left side via a bearing, and the front walls of the rotating plate and the fixed plate are respectively provided with a movable groove and an arc-shaped groove that match the toggle lever, and the rear end of the toggle lever extends through the movable groove into the arc-shaped groove.

[0007] As a preferred embodiment of this utility model, the front wall of the detection plate and the electric cylinder are respectively provided with a first threaded hole and a second threaded hole near the right side, and a first fastening screw and a second fastening screw are respectively fitted into the first threaded hole and the second threaded hole. The front wall of the lifting plate, the rotating plate and the fixing plate are respectively provided with a third threaded hole that matches the first fastening screw and the second fastening screw.

[0008] As a preferred embodiment of this utility model, the side walls of the two translation plates are provided with sliding holes near the bottom, and the two sliding holes are provided with limiting rods, with the left and right ends of the limiting rods being distributed and connected to the side walls of the two support plates.

[0009] As a preferred embodiment of this utility model, the two support plates are respectively connected to side plates by bolts on the opposite sides. Two inverted U-shaped plates are respectively sleeved on the outside of the two sliding plates near the top. A movable rod is connected to the left side of the inverted U-shaped plate by bolts. A limiting hole matching the movable rod is opened on the side wall of the left side plate. An electric push rod is connected through the right side plate. The left end of the electric push rod is connected to the right outer wall of the inverted U-shaped plate by bolts.

[0010] As a preferred embodiment of this utility model, an electric telescopic rod is connected through the middle of the top of the inner cavity of the inverted U-shaped plate, and the bottom end of the electric telescopic rod is connected to the top of the lifting plate by bolts. A through groove is provided on the top of the base.

[0011] As a preferred embodiment of this utility model, the top of the lifting plate is connected to vertical rods near the left and right sides by bolts, and the top of the inner cavity of the inverted U-shaped plate is provided with round holes matching the vertical rods near the left and right sides. The left and right sides of the lifting plate are connected to sliders by bolts, and the opposite side of the two translation plates is provided with sliding grooves matching the sliders.

[0012] The beneficial effects of this utility model are:

[0013] 1. In this utility model, by cooperating with components such as the rotating plate, electric cylinder, detection plate, limiting square tube, and rotating disk, it is possible to effectively avoid using different equipment to test the transverse shear bearing capacity and the vertical shear bearing capacity. This allows for effective adjustment of the direction of the detection plate, enabling switching between transverse and vertical shear bearing capacity testing, thus improving testing efficiency and usage efficiency. Furthermore, it allows for effective testing in different directions, resulting in comprehensive testing and improved testing range and work efficiency.

[0014] 2. In this utility model, through the cooperation between components such as electric push rod, movable rod, translation plate, electric telescopic rod, vertical rod and lifting plate, the compressive force can be adjusted twice, thereby enabling it to apply pressure effectively and improving the force application efficiency of its shear bearing capacity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 A partial 3D view of the vertical inspection of the central inspection plate;

[0017] Figure 3 for Figure 1 Partial 3D view of components such as the central limiting square tube and rotating disk;

[0018] Figure 4 for Figure 1 Partial 3D view of components such as the fixing plate and rotating plate;

[0019] Figure 5 for Figure 1 Partial 3D view of components such as the inverted U-shaped plate and the lifting plate;

[0020] Figure 6 for Figure 1 Partial 3D view of components such as the middle limit rod and support plate;

[0021] Figure 7 for Figure 1 Rear-view stereoscopic view;

[0022] In the diagram: 1. Base; 2. Support plate; 3. Movable rod; 4. Inverted U-shaped plate; 5. Vertical rod; 6. Electric telescopic rod; 7. Lifting plate; 8. Electric push rod; 9. Side plate; 10. Translation plate; 11. Through slot; 12. Limiting rod; 13. Limiting square tube; 14. Detection plate; 15. Electric cylinder; 16. Fixing plate; 17. Rotary disk; 18. Arc-shaped groove; 19. Rotating plate; 20. Movable groove; 21. Actuating rod; 22. Servo motor; 23. First fastening screw; 24. Second fastening screw. Detailed Implementation

[0023] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0024] like Figures 1 to 7As shown, a prefabricated bridge structure high-support shear bearing capacity testing device includes: a base 1, with support plates 2 bolted to the left and right sides of the base 1, and a sliding plate 10 slidably connected to the top of the base 1 near the rear side, with a lifting plate 7 slidably connected between the two sliding plates 10, a fixing plate 16 attached to the front side of the lifting plate 7, and a rotating plate 19 movably connected to the front side of the fixing plate 16 via a rotating shaft and bearing, with a servo motor 22 bolted to the rear wall of the lifting plate 7, a through hole in the lifting plate 7, and the rear end of the rotating shaft on the rear wall of the rotating plate 19 passing through the inner ring of the bearing and connected to the output shaft of the servo motor 22, with an electric cylinder 15 movably connected to the front wall of the rotating plate 19 near the right side, and a detection plate 14 bolted to the left end of the push rod on the electric cylinder 15, with a limiting square tube 13 sleeved on the detection plate 14, and a rotating disk 17 bolted to the rear wall of the limiting square tube 13, with the rear wall of the rotating disk 17 movably connected to the front wall of the rotating plate 19 via a rotating shaft and bearing.

[0025] In this embodiment, a toggle lever 21 is movably connected to the rear wall of the electric cylinder 15 near the left side via a bearing. The front walls of the rotating plate 19 and the fixed plate 16 are respectively provided with a movable groove 20 and an arc-shaped groove 18 that match the toggle lever 21. The rear end of the toggle lever 21 extends through the movable groove 20 into the arc-shaped groove 18. The front walls of the detection plate 14 and the electric cylinder 15 are respectively provided with a first threaded hole and a second threaded hole near the right side. The first threaded hole and the second threaded hole are respectively fitted with a first fastening screw 23 and a second fastening screw 24. The front walls of the lifting plate 7, the rotating plate 19, and the fixed plate 16 are respectively provided with a third threaded hole that matches the first fastening screw 23 and the second fastening screw 24. This effectively avoids the need to use different equipment to test the transverse and vertical shear bearing capacity, allowing for effective adjustment of the direction of the test plate 14. This enables switching between transverse and vertical shear bearing capacity testing, improving testing and usage efficiency. Furthermore, it allows for effective testing in different directions, resulting in comprehensive and efficient testing, thus enhancing its testing range and work efficiency.

[0026] In this embodiment, sliding holes are provided near the bottom of the side walls of the two translation plates 10, and limiting rods 12 are inserted into the two sliding holes. The left and right ends of the limiting rods 12 are distributed and connected to the side walls of the two support plates 2. Side plates 9 are bolted to the opposite sides of the two support plates 2. Inverted U-shaped plates 4 are sleeved on the outside of the two translation plates 10 near the top. A movable rod 3 is bolted to the left side of the inverted U-shaped plate 4, and a limiting hole matching the movable rod 3 is provided on the side wall of the left side plate 9. An electric push rod 8 is connected through the right side plate 9. The left end of the electric push rod 8 is connected to the right side plate 9. The electric telescopic rod 6 is bolted to the right outer wall of the inverted U-shaped plate 4. The bottom end of the electric telescopic rod 6 is bolted to the top of the lifting plate 7. A through slot 11 is provided on the top of the base 1. Vertical rods 5 are bolted to the top of the lifting plate 7 near the left and right sides. Round holes matching the vertical rods 5 are provided on the top of the inverted U-shaped plate 4 near the left and right sides. Slider blocks are bolted to the left and right sides of the lifting plate 7. Sliders matching the sliders are provided on opposite sides of the two translation plates 10. This allows for secondary adjustment of the compressive pressure, enabling effective pressure application and improving the efficiency of shear bearing capacity.

[0027] Implementation Plan: First, the extension and retraction of the electric telescopic rod 6 causes the lifting plate 7 to slide downwards or upwards between the two translation plates 10. The lifting plate 7, through components such as the fixing plate 16, causes the detection plate 14 to slide downwards or upwards, thereby adjusting the vertical position of the detection plate 14. The extension and retraction of the electric push rod 8, through the inverted U-shaped plate 4, causes the two translation plates 10 to slide to the left or right on the limiting rod 12. When the first fastening screw 23 is removed, the left end of the push rod on the electric cylinder 15 extends or retracts, causing the detection plate 14 to move to the left or right, enabling a secondary adjustment of the compressive force, thereby enabling it to effectively apply pressure and improving its shear bearing capacity. The servo motor 22 drives the rotating plate 19 to rotate counterclockwise, causing the rotating plate 19 to drive the detection plate 14 to slide downwards within the limiting square tube 13 through the electric cylinder 15, and through the limiting square tube 13, drive the rotating disk 17 to rotate counterclockwise (e.g., Figure 2 As shown, this effectively avoids the need to use different equipment to test the transverse and vertical shear bearing capacity, thereby enabling effective adjustment of the direction of the test plate 14. This allows for switching between transverse and vertical shear bearing capacity testing, improving testing efficiency and usability. Furthermore, it enables effective testing in different directions, resulting in comprehensive testing and increased testing range and efficiency.

[0028] The extension and retraction of the electric push rod 8 drives the two translation plates 10 to slide to the left or right on the limiting rod 12 via the inverted U-shaped plate 4, which can adjust its left and right position. The extension and retraction of the electric telescopic rod 6 drives the lifting plate 7 to slide down or up between the two translation plates 10. The lifting plate 7 drives the detection plate 14 to slide down or up via the fixing plate 16 and other components, which can adjust the up and down position of the detection plate 14. When the first fastening screw 23 is removed, the left end of the push rod on the electric cylinder 15 extends or retracts, which drives the detection plate 14 to move down or up, so that it can make secondary adjustments to the extrusion pressure, thereby enabling it to apply pressure effectively and improving the force application efficiency of its shear bearing capacity.

[0029] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A testing device for the shear bearing capacity of high-support points in prefabricated bridge structures, characterized in that, include: The base has support plates bolted to its left and right sides, and a sliding plate is slidably connected to the top of the base near the rear. A lifting plate is slidably connected between the two sliding plates. A fixing plate is attached to the front of the lifting plate, and a rotating plate is movably connected to the front of the fixing plate via a rotating shaft and bearing. A servo motor is bolted to the rear wall of the lifting plate. A through hole is made in the lifting plate, and the rear end of the rotating shaft on the rear wall of the rotating plate passes through the inner ring of the bearing and is connected to the output shaft of the servo motor. An electric cylinder is movably connected to the front wall of the rotating plate near the right side, and a detection plate is bolted to the left end of the push rod on the electric cylinder. A limiting square tube is fitted over the detection plate, and a rotating disk is bolted to the rear wall of the limiting square tube. The rear wall of the rotating disk is movably connected to the front wall of the rotating disk via a rotating shaft and bearing.

2. The prefabricated bridge structure high-support shear bearing capacity testing equipment according to claim 1, characterized in that, The rear wall of the electric cylinder is connected to a lever via a bearing near the left side. The front walls of the rotating plate and the fixed plate are respectively provided with a movable groove and an arc-shaped groove that match the lever. The rear end of the lever extends through the movable groove into the arc-shaped groove.

3. The prefabricated bridge structure high-support shear bearing capacity testing equipment according to claim 1, characterized in that, The front wall of the detection plate and the electric cylinder is provided with a first threaded hole and a second threaded hole near the right side, and a first fastening screw and a second fastening screw are respectively fitted into the first threaded hole and the second threaded hole. The front wall of the lifting plate, the rotating plate and the fixing plate are respectively provided with a third threaded hole that matches the first fastening screw and the second fastening screw.

4. The prefabricated bridge structure high-support shear bearing capacity testing equipment according to claim 1, characterized in that, The two sliding plates have sliding holes near the bottom on their side walls, and limit rods are inserted through the two sliding holes. The left and right ends of the limit rods are connected to the side walls of the two support plates.

5. The prefabricated bridge structure high-support shear bearing capacity testing equipment according to claim 4, characterized in that, Side plates are bolted to the two support plates on opposite sides. Inverted U-shaped plates are fitted onto the outside of the two sliding plates near the top. A movable rod is bolted to the left side of the inverted U-shaped plate. A limiting hole matching the movable rod is opened on the side wall of the left side plate. An electric push rod is connected through the right side plate. The left end of the electric push rod is bolted to the right outer wall of the inverted U-shaped plate.

6. The prefabricated bridge structure high-support shear bearing capacity testing equipment according to claim 5, characterized in that, An electric telescopic rod is connected through the middle of the top of the inner cavity of the inverted U-shaped plate, and the bottom end of the electric telescopic rod is bolted to the top of the lifting plate. A through groove is opened on the top of the base.

7. The prefabricated bridge structure high-support shear bearing capacity testing equipment according to claim 5, characterized in that, The top of the lifting plate is connected to vertical rods near the left and right sides by bolts. The top of the inner cavity of the inverted U-shaped plate is provided with round holes that match the vertical rods near the left and right sides. The left and right sides of the lifting plate are connected to sliders by bolts. The opposite side of the two sliding plates is provided with grooves that match the sliders.

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