Auxiliary support for detecting strength of bridge beam plate by rebound method on construction site

By designing an auxiliary bracket for rebound detection, the sliding lift seat and telescopic bracket combined with a laser pointer and a digital rebound instrument can realize the intensity detection of bridge beam slabs without high altitude operations, and solve the existing technology medium and high altitude Work safety hazards and high costs have achieved low-cost, safe and stable detection results.

CN222251742UActive Publication Date: 2024-12-27THE THIRD ENG OF CHINA RAILWAY 12TH BUREAU GROUP +1
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Patent Information

Application Number
CN202323451097.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-18
Publication Date
2024-12-27
Estimated Expiration
2033-12-18

AI Technical Summary

Technical Problem

When the existing rebound method detects the strength of bridge beam slabs, the inspectors need to operate at high altitudes, which poses safety risks. The cost of using bridge inspection vehicles is high and it is greatly affected by the terrain.

Method used

Design an auxiliary bracket, including test rod A, test rod B and test rod C, through the sliding lift seat and telescopic bracket, combined with active control gear, fixed sliding gear, digital rebound instrument, laser pen and walkie-talkie, to achieve no need for high altitude The inspection of the operation reduces costs and can adjust the length and height according to the drawing.

Benefits of technology

The bridge beam slab strength detection without high altitude operations is realized, which reduces safety risks and costs, is simple to operate, has a stable structure, is widely applicable, and is reusable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an auxiliary support for detecting the strength of a bridge beam plate through a construction site rebound method, which relates to the field of construction site rebound detection and comprises a test rod B. The upper part of the test rod B is provided with a test rod A, and the lower part of the test rod B is provided with a test rod C. The middle part of the test rod B is provided with a sliding lifting seat through a fixer. A telescopic bracket is arranged on the sliding lifting seat; a driving control gear is arranged at one end of the test rod A, and a digital display resiliometer is fixed on the adjusting chain at one end of the test rod C through a fixing seat. And one side of the test rod C is provided with an interphone. A monitor is arranged on one side, close to the test rod C, of the test rod B. One end of the test rod A is provided with a laser pen. Detection personnel do not need to work high above the ground, and potential safety hazards caused by detection of the bridge beam plate through a rebound method are reduced; the number of required detection personnel is small; a bridge inspection vehicle is not needed, the cost is low, the influence of terrains is small, the service life is long, and the effect is good; and batch production can be realized.
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Description

Technical Field

[0001] The utility model relates to the field of rebound detection at construction sites, in particular to an auxiliary bracket used for detecting the strength of bridge beams and slabs by a rebound method at construction sites. Background Art

[0002] The rebound method for testing the concrete strength of bridge beams and slabs is a means of non-destructive testing of concrete strength on site, which can quickly and easily obtain representative overall concrete strength data during construction. When measuring the strength of beams and slabs, personnel are required to operate the outer arm of the bridge inspection vehicle. Although the design and use of bridge inspection vehicles are mature enough, there are still certain safety hazards for inspection personnel working at high altitudes, and the cost of using bridge inspection vehicles in engineering is relatively high.

[0003] Therefore, it is necessary to develop an auxiliary bracket that can avoid high-altitude operations at the construction site and detect the strength of bridge beams and slabs using the rebound method with low maintenance costs. Utility Model Content

[0004] The purpose of the utility model is to design an auxiliary bracket for detecting the strength of bridge beams and slabs by the rebound method at the construction site in view of the deficiencies in the prior art, so as to avoid high-altitude operations for personnel, and the utility model has low cost, can be reused, and has low maintenance costs. The horizontal and vertical distances from the anti-collision guardrail to the beam and slab can be calculated according to the design drawings to achieve the purpose of detection.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an auxiliary bracket for detecting the strength of bridge beams and slabs by the rebound method at the construction site, adopting the following technical scheme, including a test rod B, a test rod A is arranged on the upper part of the test rod B, a test rod C is arranged on the lower part of the test rod B, a sliding lifting seat is arranged in the middle part of the test rod B through a fixer, and a telescopic bracket is arranged on the upper part of the sliding lifting seat.

[0006] Furthermore, an active control gear is provided at one end of the test rod A, a fixed sliding gear is provided at the other end of the test rod A, and fixed sliding gears are provided at both ends of the test rod C. An adjusting chain is fixed on the active control gear and the fixed sliding gear to form an integral loop, and a digital rebound tester is fixed on the adjusting chain at one end of the test rod C through a fixed seat.

[0007] Furthermore, an adjusting dial is provided on the upper part of the sliding lifting seat to adjust the height of the telescopic bracket, a universal pulley is provided on one side of the sliding lifting seat, a longitudinal pulley is provided on the lower part of the cross beam part of the telescopic bracket, a transverse pulley is provided on the longitudinal beam part of the telescopic bracket, and a level bubble is provided on the cross beam part of the telescopic bracket.

[0008] Furthermore, a walkie-talkie is provided on one side of the test rod C.

[0009] Furthermore, a monitoring device is provided on the side of the test rod B close to the test rod C.

[0010] Furthermore, a laser pen is provided at one end of the test rod A.

[0011] Furthermore, a plurality of bolt holes are provided on the upper portion of the test rod B, a slot c is provided in the middle portion of the test rod A, the slot c has the same size as that of the test rod B, and a bolt hole is provided in the middle portion of the slot c; a slot a is provided in the middle portion of the test rod B, and the slot a is fixedly connected to the fixer; a slot b is provided at the bottom of the test rod B, the slot b has the same size as that of the test rod C, a bolt hole is provided in the middle portion of the slot b, and a plurality of bolt holes are provided on one side of the test rod C; the test rod B and the test rod A, as well as the test rod B and the test rod C, are fixedly connected by a bolt group.

[0012] Furthermore, a rebound point reference plate is provided at a corresponding rebound point of the laser pen, and the rebound point reference plate is supported and fixed by a bottom plate and a lifting bracket on the bottom plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model does not require the inspectors to work at high altitude, thus reducing the potential safety hazard of the rebound method for inspecting bridge beams and slabs;

[0015] 2. The utility model is easy to operate and requires fewer inspection personnel;

[0016] 3. The utility model does not require a bridge inspection vehicle when inspecting bridge beams and slabs, has low cost, and is less affected by terrain;

[0017] 4. The utility model has a safe and stable structure, long service life and good effect;

[0018] 5. The utility model can adjust the length of the test rod according to the size of the drawing, one mold has multiple uses, and can be mass-produced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a structural schematic diagram of the sliding lifting seat of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the test rod C of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the test rod A of the utility model;

[0023] Figure 5This is a structural schematic diagram of the rebound point control plate of the utility model;

[0024] Figure 6 This is an exploded schematic diagram of the connection structure of the test rod A, the test rod B, and the test rod C of the utility model;

[0025] Figure 7 It is a working schematic diagram of the utility model.

[0026] In the figure: 1-adjusting dial; 2-sliding lifting seat; 3-level bubble; 4-fixer; 5-universal pulley; 6-lateral pulley; 7-longitudinal pulley; 8-telescopic bracket; 9-adjusting chain; 10-test rod B; 11-test rod C; 12-monitoring; 13-digital rebound tester; 14-interphone; 15-fixed seat; 16-fixed sliding gear; 17-test rod A; 18-laser pen; 19-active control gear; 20-rebound point reference plate; 21-lifting bracket; 22-bottom plate; 23-bolt group; 24-bolt hole; 25-slot a; 26-slot b; 27-slot c. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0028] In the description of the present invention, it should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1-Figure 7 As shown, the utility model is an auxiliary bracket for detecting the strength of bridge beams and slabs by the rebound method at a construction site, comprising: a test rod B10, a test rod A17 is arranged on the upper part of the test rod B10, a test rod C11 is arranged on the lower part of the test rod B10, a sliding lifting seat 2 is arranged in the middle part of the test rod B10 through a fixer 4, and a telescopic bracket 8 is arranged on the upper part of the sliding lifting seat 2.

[0031] In a specific embodiment, a plurality of bolt holes 24 are provided on the upper portion of the test rod B10, a slot c27 is provided in the middle portion of the test rod A17, the slot c27 has the same size as the test rod B10, and a bolt hole 24 is provided in the middle portion of the slot c27; a slot a25 is provided in the middle portion of the test rod B10, and the slot a25 is fixedly connected to the fixer 4; a slot b26 is provided at the bottom portion of the test rod B10, the slot b26 has the same size as the test rod C11, a bolt hole 24 is provided in the middle portion of the slot b26, and a plurality of bolt holes 24 are provided on one side of the test rod C11; the test rod B10 and the test rod A17, as well as the test rod B10 and the test rod C11 are fixedly connected by a bolt group 23.

[0032] An active control gear 19 is provided at one end of the test rod A17, a fixed sliding gear 16 is provided at the other end of the test rod A17, and fixed sliding gears 16 are provided at both ends of the test rod C11. The adjusting chain 9 is fixed on the active control gear 19 and the fixed sliding gear 16 to form an integral loop. A digital rebound tester 13 is fixed on the adjusting chain 9 at one end of the test rod C11 through a fixing seat 15; a laser pen 18 is provided at one end of the test rod A17.

[0033] An adjusting dial 1 is provided on the upper part of the sliding lifting seat 2 to adjust the height of the telescopic bracket 8, a universal pulley 5 is provided on one side of the sliding lifting seat 2, a longitudinal pulley 7 is provided on the lower part of the cross beam part of the telescopic bracket 8, a transverse pulley 6 is provided on the longitudinal beam part of the telescopic bracket 8, and a level bubble 3 is provided on the cross beam part of the telescopic bracket 8.

[0034] An intercom 14 is provided on one side of the test rod C11; a monitoring device 12 is provided on the side of the test rod B10 close to the test rod C11.

[0035] A rebound point reference plate 20 is provided at a corresponding rebound point of the laser pen 18 , and the rebound point reference plate 20 is supported and fixed by a bottom plate 22 and a lifting bracket 21 on the bottom plate 22 .

[0036] The specific operation mode of this utility model:

[0037] 1. The fixing seat 15 is installed on the adjustment chain 9, the digital rebound tester 13 is fixed on the fixing seat 15, and the digital rebound tester 13 is turned on to set the measuring area and voice broadcast;

[0038] 2. The intercom 14 is fixed on the test rod C11, and the monitor 12 is fixed on the test rod B10;

[0039] 3. Insert the fixture 4 into the slot a25 in the middle of the test rod B10 and fix it so that the test stand formed by the test rods A, B, and C is stable;

[0040] 4. Install the above-formed whole on the concrete guardrail and adjust the telescopic bracket 8 to make it stable;

[0041] 5. Adjust the adjusting dial 1 to make the level bubble 3 centered and level;

[0042] 6. Install the laser pen 18 at the front end of the test rod A17;

[0043] 7. Use the lifting bracket 21 of the rebound point reference plate 20 to adjust the height so that the laser of the laser pen 18 corresponds to the first rebound point in the first row of the rebound point reference plate 20;

[0044] 8. Rotate the active control gear 19 of the test rod A17 to control the adjustment chain 9, and slide the digital rebound tester 13 forward. After hearing the rebound value broadcast by the intercom 14, the tester records the value, and then reversely rotates the active control gear 19 to make the digital rebound tester 13 leave the test surface for a certain distance, and complete the first rebound point test of the first row of the rebound point reference plate;

[0045] 9. Slide the sliding lifting seat 2 horizontally, adjust the laser pen 18 to the corresponding 2nd point of the first row of the rebound point reference plate 20, rotate the active control gear 19, and after hearing the voice broadcast of the rebound value on the intercom, the tester records the value, and then reversely rotates the active control gear 19 to make the digital rebound tester 13 leave the test surface for a certain distance, complete the test of the second rebound point of the first row, repeat this operation, and complete the rebound test of the first row in the test area of ​​the rebound point reference plate 20;

[0046] 10. Adjust the height of the sliding lifting seat 2, adjust the laser pen 18 to the first test point in the second row of the corresponding rebound point reference plate, rotate the active control gear 19, control the adjustment chain 9, and slide the digital rebound tester 13 forward. After hearing the rebound value broadcast by the intercom 14, the tester records the value, and then reversely rotates the active control gear 19 to make the digital rebound tester 13 leave the test surface for a certain distance, and complete the first rebound point test in the second row of the rebound point reference plate;

[0047] 11. Slide the sliding lifting seat 2 horizontally, adjust the laser pen 18 to the corresponding second point of the second row of the rebound point reference plate 20, rotate the active control gear 19, and after hearing the rebound value broadcast by the intercom, the tester records the value, and then reversely rotates the active control gear 19 to make the digital rebound tester 13 leave the test surface for a certain distance, complete the second rebound point test of the second row, repeat this operation, and complete the rebound test of the second row in the test area of ​​the rebound point reference plate 20;

[0048] 12. Repeat the above steps to complete the test area of ​​the rebound point control plate 20, thereby completing the first test area of ​​the rebound test;

[0049] 13. Slide the sliding lifting seat 2 horizontally, select the next rebound detection area according to the monitoring 12, then move the position of the rebound point reference plate 20, repeat the above steps, and complete the second rebound detection area work.

[0050] The above embodiments are only preferred embodiments of the present invention. The above descriptions do not limit the protection scope of the present invention in turn. The above descriptions are exemplary and not exhaustive. Therefore, any equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to ordinary technicians in this technical field.

Claims

1. An auxiliary support for testing the strength of bridge beams and slabs by rebound method at construction sites, characterized in that: The invention comprises a test rod B (10), wherein a test rod A (17) is arranged on the upper part of the test rod B (10), a test rod C (11) is arranged on the lower part of the test rod B (10), a sliding lifting seat (2) is arranged on the middle part of the test rod B (10) via a fixer (4), and a telescopic bracket (8) is arranged on the upper part of the sliding lifting seat (2).

2. The auxiliary support for detecting the strength of bridge beams and slabs by the rebound method at the construction site according to claim 1 is characterized in that: An active control gear (19) is provided at one end of the test rod A (17), a fixed sliding gear (16) is provided at the other end of the test rod A (17), and fixed sliding gears (16) are provided at both ends of the test rod C (11). An adjustment chain (9) is fixed on the active control gear (19) and the fixed sliding gear (16) to form an integral loop, and a digital rebound tester (13) is fixed on the adjustment chain (9) at one end of the test rod C (11) via a fixing seat (15).

3. The auxiliary support for detecting the strength of bridge beams and slabs by the rebound method at the construction site according to claim 1 is characterized in that: An adjusting dial (1) is arranged on the upper part of the sliding lifting seat (2) for adjusting the height of the telescopic bracket (8), a universal pulley (5) is arranged on one side of the sliding lifting seat (2), a longitudinal pulley (7) is arranged on the lower part of the cross beam of the telescopic bracket (8), a transverse pulley (6) is arranged on the longitudinal beam of the telescopic bracket (8), and a level bubble (3) is arranged on the cross beam of the telescopic bracket (8).

4. The auxiliary support for detecting the strength of bridge beams and slabs by the rebound method at the construction site according to claim 1 is characterized in that: An intercom (14) is provided on one side of the test rod C (11).

5. The auxiliary support for detecting the strength of bridge beams and slabs by the rebound method at the construction site according to claim 1 is characterized in that: A monitoring device (12) is provided on one side of the test rod B (10) close to the test rod C (11).

6. The auxiliary support for detecting the strength of bridge beams and slabs by the rebound method at the construction site according to claim 1 is characterized in that: A laser pen (18) is provided at one end of the test rod A (17).

7. The auxiliary support for detecting the strength of bridge beams and slabs by the rebound method at a construction site according to claim 1 is characterized in that: The upper portion of the test rod B (10) is provided with a plurality of bolt holes (24); the middle portion of the test rod A (17) is provided with a slot c (27), the slot c (27) has the same size as the test rod B (10), and the middle portion of the slot c (27) is provided with a bolt hole (24); the middle portion of the test rod B (10) is provided with a slot a (25), and the slot a (25) is fixedly connected to the fixture (4); the bottom portion of the test rod B (10) is provided with a slot b (26), the slot b (26) has the same size as the test rod C (11), the middle portion of the slot b (26) is provided with a bolt hole (24), and one side of the test rod C (11) is provided with a plurality of bolt holes (24); the test rod B (10) and the test rod A (17), and the test rod B (10) and the test rod C (11) are fixedly connected via a bolt group (23).

8. The auxiliary support for detecting the strength of bridge beams and slabs by the rebound method at the construction site according to claim 6 is characterized in that: The laser pen (18) is provided with a rebound point reference plate (20) corresponding to the rebound point, and the rebound point reference plate (20) is supported and fixed by a bottom plate (22) and a lifting bracket (21) on the bottom plate (22).