A device for detecting the seismic performance damage of a pier in an erosion environment

Abstract

The present application relates to the field of bridge piers, and discloses an erosion environment bridge pier seismic performance damage detection device, which solves the problem of poor cleaning effect of the knocking plate of the existing erosion environment bridge pier seismic performance damage detection device. When it is necessary to record the knocking points for the seismic performance damage detection of the bridge pier, the protruding pressure rod on the surface of the storage box is pressed when the knocking plate contacts the bridge pier, so that the inclined surface at one end of the pressure rod extrudes the inclined surface at the top of the driven rod, and the inclined surface of the driven rod extrudes and pushes the inclined surface of the push rod, the push rod pushes the marker pen outward, so that the marker pen pushes the baffle through the opening, the baffle is further opened by rotating the hinge, so that the marker pen is exposed outside the storage box, and the marker pen records the fixed points on the surface of the bridge pier, improving the detection accuracy.

Description

Technical Field

[0001] This invention relates to the field of bridge pier technology, specifically to a device for detecting damage to the seismic performance of bridge piers under corrosive environments. Background Technology

[0002] Bridge piers are substructures that support the bridge span and transfer dead loads and vehicle live loads to the foundation. Abutments are located on both sides of the bridge. The function of bridge piers is to support the bridge span structure. Since bridge piers are located underwater and are subject to erosion by water flow over the years, it is necessary to build a scaled-down model of the bridge and piers using the same materials before constructing the entire bridge and conduct necessary tests. Only after passing all tests can the actual construction and use begin. As the main supporting force of the bridge, bridge piers need to be tested for seismic performance damage after being underwater for a period of time. This damage can easily cause concrete spalling, affecting the supporting performance of the bridge piers. Therefore, it is necessary to test the seismic performance of the bridge piers and improve the subsequent construction of the bridge piers.

[0003] Currently, the device for detecting seismic performance damage to bridge piers under erosion conditions operates by fixing a scaled-down model of the bridge pier inside a placement frame on a base plate. A motor then drives gears that mesh with two sets of racks to rotate. These racks, moving in opposite directions, drive two sets of striking plates to repeatedly strike the underwater eroded sections of the bridge pier. The damage to the pier surface is scanned and transmitted to a computer for analysis. However, the device lacks pinpoint data for the striking at different locations on the bridge pier, hindering accurate recording of the degree of seismic performance damage at different points in the underwater eroded section and reducing detection accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a device for detecting damage to the seismic performance of bridge piers under corrosive conditions. By using this device, the problem of poor cleaning effect of the tapping plate in existing devices for detecting damage to the seismic performance of bridge piers under corrosive conditions is solved.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for detecting seismic performance damage of bridge piers under corrosive conditions, comprising a base plate, a groove formed inside the base plate, a motor disposed inside the groove, a drive rod disposed at the output end of the motor, a gear disposed on the surface of the drive rod, a rack meshing at both ends of the gear, a striking plate disposed at one end of the rack, a detector disposed on the top surface of the striking plate, and a placement frame disposed on the surface of the base plate, wherein the lower surface of the striking plate is provided with a marking structure for recording the striking points of the seismic performance of the eroded part of the bridge pier;

[0006] The label structure includes a storage box set on the lower surface of the striking plate, a slot opened on the surface of the storage box, a pressure rod passing through the inside of the slot, a driven rod set at one end of the pressure rod, a push rod set at one end of the driven rod, a marker pen set on one side of the push rod, and an opening opened on the surface of the storage box.

[0007] Furthermore, the pressure rod is a right-angled trapezoid with an inclined plane at the end near the driven rod, the driven rod is an isosceles trapezoid, the push rod is a right-angled trapezoid with an inclined plane at the end near the driven rod, and the inclined planes of the two ends of the driven rod match the inclined planes of the pressure rod and the push rod.

[0008] Furthermore, the inner wall of the storage box is provided with channels, and there are three sets of channels. Each of the three sets of channels has a protrusion slidably disposed inside, and each protrusion is connected to the pressure rod, the driven rod, and the push rod.

[0009] Furthermore, a spring is provided on the surface of the marker, one end of which is connected to the inner wall of the storage box. The tip of the marker is flush with the opening. The baffle is connected to the surface of the storage box via a hinge. The hinge's internal pivot and connecting parts are equipped with torsion springs that can automatically reset.

[0010] Furthermore, a cleaning structure is provided on one side of the striking plate, the cleaning structure including a fixing plate connected to the surface of the base plate.

[0011] Furthermore, the surface of the fixing plate is provided with a sliding groove, a slider is slidably arranged inside the sliding groove, a cleaning brush is provided at one end of the slider, and a tension spring is provided on the surface of the slider, which is connected to the sliding groove.

[0012] Furthermore, the surface of the drive rod is provided with an intermittent rotation structure, and the intermittent rotation structure is provided with a main gear on the surface of the drive rod. The main gear is composed of tooth blocks and arc blocks distributed at equal intervals. One end of the main gear is meshed with a driven wheel, which is a half-tooth block structure. A rotating rod is provided inside the driven wheel, and the rotating rod is connected to the bottom surface of the placement frame.

[0013] Furthermore, the placement frame is provided with a fixing structure inside, which includes a compression spring disposed on the inner wall of the placement frame, and a clamping plate is disposed at one end of the compression spring.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] This invention proposes a device for detecting seismic performance damage to bridge piers under corrosive conditions. Existing devices for detecting seismic performance damage to bridge piers under corrosive conditions have poor cleaning effects due to the impact plate. This invention, however, utilizes a pressure rod, a driven block, a protrusion, a channel, a push rod, and a marker. When recording impact points for seismic performance damage detection of bridge piers, the impact plate presses against the protruding pressure rod on the surface of the storage box when it contacts the bridge pier. This causes the inclined surface at one end of the pressure rod to press against the inclined surface at the top of the driven rod, and the inclined surface of the driven rod to press and push against the inclined surface of the push rod. Since the surfaces of the pressure rod, driven rod, and push rod all slide within the channel via the protrusion, the push rod pushes the marker outwards, causing the marker to pass through an opening and push against a baffle. The baffle is then opened by a hinge, exposing the marker outside the storage box. The marker then records the points on the bridge pier surface, improving the accuracy of the detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a three-dimensional unfolded structural diagram of the limiting knot intermittent rotation structure, the impact plate drive, and the anti-frame and fixing structure of the present invention.

[0018] Figure 3 This is a three-dimensional unfolded structural diagram of the cleaning structure of the present invention;

[0019] Figure 4 This is a three-dimensional cross-sectional view of the marking structure of the present invention.

[0020] In the diagram: 1. Base plate; 2. Motor; 3. Drive rod; 4. Gear; 5. Rack; 6. Striking plate; 7. Placement frame; 8. Labeling structure; 81. Storage box; 82. Pressure rod; 84. Driven rod; 85. Protrusion; 86. Channel; 87. Push rod; 88. Marker; 89. Opening; 810. Hinge; 811. Baffle; 812. Spring; 9. Cleaning structure; 92. Slider; 93. Tension spring; 94. Fixing plate; 95. Slide groove; 96. Cleaning brush; 10. Groove; 11. Detector; 12. Fixing structure; 121. Clamping plate; 122. Compression spring; 13. Intermittent rotation structure; 131. Main gear; 132. Driven wheel; 133. Rotating rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0023] Combination Figures 1-2 and Figure 4 A device for detecting seismic performance damage of bridge piers under corrosive conditions includes a base plate 1, a groove 10 inside the base plate 1, a motor 2 inside the groove 10, a drive rod 3 at the output end of the motor 2, a gear 4 on the surface of the drive rod 3, a rack 5 meshing with both ends of the gear 4, a striking plate 6 at one end of the rack 5, a detector 11 on the top surface of the striking plate 6, a placement frame 7 on the surface of the base plate 1, and a marking structure 8 on the lower surface of the striking plate 6 for recording the striking points of the eroded parts of the bridge pier.

[0024] The present invention will be further described below with reference to embodiments.

[0025] Example 1:

[0026] Please see Figures 1-2 and Figure 4 Structure 8 includes a storage box 81 disposed on the lower surface of the striking plate 6, a slot on the surface of the storage box 81, a pressure rod 82 passing through the slot, a driven rod 84 disposed at one end of the pressure rod 82, a push rod 87 disposed at one end of the driven rod 84, a marker pen 88 disposed on one side of the push rod 87, and an opening 89 disposed on the surface of the storage box 81. The pressure rod 82 is a right-angled trapezoid, with an inclined plane at the end of the pressure rod 82 near the driven rod 84. The driven rod 84 is an isosceles trapezoid. The push rod 87 is a right-angled trapezoid, with an inclined plane at the end of the push rod 87 near the driven rod 84. The driven rod 84 has a pressure rod at both ends of the inclined plane. The inclined surfaces of rod 82 and push rod 87 fit together. The inner wall of storage box 81 is provided with a channel 86. There are three sets of channels 86. Each of the three sets of channels 86 has a protrusion 85 slidably arranged inside. Each protrusion 85 is connected to the pressure rod 82, the driven rod 84 and the push rod 87. The surface of the marker pen 88 is provided with a spring 812. One end of the spring 812 is connected to the inner wall of storage box 81. The pen tip of the marker pen 88 is flush with the opening 89. The baffle 811 is connected to the surface of storage box 81 through a hinge 810. The pivot and connecting parts inside the hinge 810 are provided with torsion springs that can automatically reset, improving the accuracy of detection.

[0027] Specifically, when seismic performance damage testing of bridge piers is required, staff start motor 2 via an external button. Motor 2 drives drive rod 3 connected to the output end, which in turn drives gear 4 on its surface to mesh with two sets of racks 5. The two sets of racks 5 drive the striking plate 6 to move in opposite directions, causing the striking plate 6 to reciprocate within the groove 10 and strike the surface of the bridge pier. The degree of damage is then scanned and detected by the detector 11. Simultaneously, when the striking plate 6 contacts the bridge pier, it presses down on the protruding pressure rod 82 on the surface of the storage box 81, causing the inclined surface of one end of the pressure rod 82 to face the driven rod 84. The top slope is pressed, and the slope of the driven rod 84 presses and pushes the slope of the push rod 87. Since the surfaces of the pressure rod 82, the driven rod 84, and the push rod 87 all slide inside the channel 86 through the protrusion 85, the push rod 87 pushes the marker pen 88 outward, so that the marker pen 88 passes through the opening 89 and pushes the baffle 811. Furthermore, the baffle 811 is opened by rotating the hinge 810, so that the marker pen 88 is exposed outside the storage box 81. The marker pen 88 records the bridge pier surface at fixed points, improving the accuracy of detection and the precision of damage data analysis at different locations of the bridge pier.

[0028] Example 2:

[0029] Please see Figures 1-3 A cleaning structure 9 is provided on one side of the striking plate 6. The cleaning structure 9 includes a fixed plate 94 connected to the surface of the base plate 1. A groove 95 is provided on the surface of the fixed plate 94. A slider 92 is slidably arranged inside the groove 95. A cleaning brush 96 is provided at one end of the slider 92. A tension spring 93 is provided on the surface of the slider 92 and is connected to the groove 95. An intermittent rotation structure 13 is provided on the surface of the drive rod 3. The intermittent rotation structure 13 is provided on the main gear 131 on the surface of the drive rod 3. The main gear 131 has tooth blocks and arc blocks evenly distributed. A driven wheel 132 is meshed at one end of the main gear 131. The driven wheel 132 has a half-tooth block structure. A rotating rod 133 is provided inside the driven wheel 132 and is connected to the bottom surface of the placement frame 7. A fixing structure 12 is provided inside the placement frame 7. The fixing structure 12 includes a compression spring 122 provided on the inner wall of the placement frame 7. A clamping plate 121 is provided at one end of the compression spring 122 to make the pier model more stable.

[0030] Specifically, the workers insert the bridge pier model into the placement frame 7, causing the model to press against the clamping plate 121. The clamping plate 121 then presses against the compression spring 122, resulting in a closer and more secure fit between the clamping plate 121 and the bridge pier surface, thus making the model more stable. Furthermore, the drive rod 3 drives the main gear 131, with its equally spaced toothed and arc-shaped blocks, to mesh and rotate with the driven wheel 132, which has a half-toothed block structure. When the toothed blocks of the main gear 131 mesh with those of the driven wheel 132, the driven wheel 132 drives the placement frame 7 at the top of the rotating rod 133 to rotate, causing the bridge pier to rotate. When the arc-shaped block of the main gear 131 contacts the toothed block of the driven wheel 132, the driven wheel 132 does not drive the placement frame 7 to rotate, and the placement frame 7 does not drive the bridge pier to rotate. This causes the bridge pier to rotate intermittently when struck by the striking plate 6, providing a more comprehensive and stable test of the bridge pier. By repeatedly striking the pier at the same location, the damage to the seismic performance of the underwater eroded portion of the bridge pier can be more comprehensively understood. However, when the striking plate 6 repeatedly strikes the bridge pier, the eroded surface of the bridge pier is damaged, resulting in debris adhering to the surface of the striking plate 6. The operator pauses the motor 2, positioning the striking surface of the striking plate 6 directly below the cleaning brush 96. Then, by grasping the handle of the cleaning brush 96 and pulling it downwards, the cleaning brush 96 cleans the debris from the surface of the striking plate 6. The cleaning brush 96 drives the slider 92 to slide inside the groove 95, thereby causing the slider 92 to stretch and store force with the tension spring 93. When the hand is released, the cleaning brush 96, through the tension spring 93, drives the slider 92 to slide upwards and reset inside the groove 95. This operation is convenient, improves the cleanliness of the striking plate 6, reduces the time spent searching for the cleaning brush 96, and increases efficiency.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting seismic performance damage of bridge piers under corrosive conditions, comprising a base plate (1), a groove (10) formed inside the base plate (1), a motor (2) disposed inside the groove (10), a drive rod (3) disposed at the output end of the motor (2), a gear (4) disposed on the surface of the drive rod (3), a rack (5) meshing with both ends of the gear (4), a striking plate (6) disposed at one end of the rack (5), a detector (11) disposed on the top surface of the striking plate (6), and a placement frame (7) disposed on the surface of the base plate (1), characterized in that: The lower surface of the striking plate (6) is provided with a marking structure (8) for recording the striking points of the eroded part of the pier to assess its seismic performance. The label structure (8) includes a storage box (81) disposed on the lower surface of the striking plate (6), a slot opened on the surface of the storage box (81), a pressure rod (82) passing through the inside of the slot, a driven rod (84) disposed at one end of the pressure rod (82), a push rod (87) disposed at one end of the driven rod (84), a marker (88) disposed on one side of the push rod (87), and an opening (89) opened on the surface of the storage box (81).

2. The device for detecting the damage of the anti-seismic performance of a pier in an erosion environment according to claim 1, characterized in that: The pressure rod (82) is a right trapezoid, and the end of the pressure rod (82) near the driven rod (84) is an inclined plane. The driven rod (84) is an isosceles trapezoid. The push rod (87) is a right trapezoid, and the end of the push rod (87) near the driven rod (84) is an inclined plane. The inclined planes of the two ends of the driven rod (84) match the inclined planes of the pressure rod (82) and the push rod (87).

3. The device for detecting the damage of the anti-seismic performance of a pier in an erosion environment according to claim 1, characterized in that: The inner wall of the storage box (81) is provided with a channel (86), and there are three sets of channels (86). Each of the three sets of channels (86) has a protrusion (85) slidably arranged inside. Each protrusion (85) is connected to the pressure rod (82), the driven rod (84), and the push rod (87).

4. The device for detecting the damage of the anti-seismic performance of a pier in an erosion environment according to claim 1, characterized in that: The surface of the marker (88) is provided with a spring (812), one end of the spring (812) is connected to the inner wall of the storage box (81), the tip of the marker (88) is flush with the opening (89), the baffle (811) is connected to the surface of the storage box (81) through a hinge (810), and the pivot and connecting parts inside the hinge (810) are provided with torsion springs that can automatically reset.

5. The device for detecting the damage of the anti-seismic performance of a pier in an erosion environment according to claim 1, characterized in that: A cleaning structure (9) is provided on one side of the striking plate (6), and the cleaning structure (9) includes a fixing plate (94) connected to the surface of the base plate (1).

6. The device for detecting the damage of the anti-seismic performance of a pier in an erosion environment according to claim 5, characterized in that: The surface of the fixed plate (94) is provided with a groove (95), and a slider (92) is slidably arranged inside the groove (95). A cleaning brush (96) is provided at one end of the slider (92), and a tension spring (93) is provided on the surface of the slider (92). The tension spring (93) is connected to the groove (95).

7. The device for detecting the damage of the anti-seismic performance of a pier in an erosion environment according to claim 1, characterized in that: The surface of the drive rod (3) is provided with an intermittent rotation structure (13), and the intermittent rotation structure (13) is provided with a main gear (131) on the surface of the drive rod (3). The main gear (131) is a tooth block and an arc block with equal spacing. One end of the main gear (131) is meshed with a driven wheel (132). The driven wheel (132) is a half tooth block structure. A rotating rod (133) is provided inside the driven wheel (132). The rotating rod (133) is connected to the bottom surface of the placement frame (7).

8. The device for detecting the damage of the anti-seismic performance of a pier in an erosion environment according to claim 1, characterized in that: The placement frame (7) is provided with a fixing structure (12) inside. The fixing structure (12) includes a compression spring (122) provided on the inner wall of the placement frame (7). One end of the compression spring (122) is provided with a clamping plate (121).

Images