Bridge structure stress detection device

Abstract

The utility model discloses a bridge structure stress detection device, which relates to the technical field of bridge detection and comprises a pair of mounting frames, mounting rings, an ultrasonic receiving end and an ultrasonic transmitting end, the mounting rings are mounted at the end parts of the mounting frames and are in threaded connection, and the ultrasonic transmitting end and the ultrasonic receiving end are respectively mounted in the pair of mounting frames. The device is characterized in that a limiting ring is arranged in the mounting frame, the limiting ring is of a hollow circular truncated cone structure, and the limiting ring clamps different bridge structures. According to the bridge structure stress detection device, the lower limiting column slides in the short sliding groove to change the position of the limiting ring, the limiting ring is of a hollow circular truncated cone structure, the limiting ring can be adjusted according to the specification of the prestressed tendon, and the limiting ring makes complete contact with the periphery of the prestressed tendon, so that the periphery of the prestressed tendon bears the same stress, and normal detection of ultrasonic waves is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge detection technical field, concretely is a bridge structure stress detection device. BACKGROUND

[0002] The stress of bridge is detected and is one detection in bridge construction detection process very important, current detection method is various, wherein ultrasonic detection is the detection method that is more popular, when detecting, the generating end and receiving end of ultrasonic are installed at the both ends of the prestressed tendon respectively.

[0003] Such as the publication number CN221992879U's a bridge structure stress detection device, the opening of installation frame is installed for the clamping part of prestressed tendon, and the clamping part includes a plurality of clamping plates, and the plurality of clamping plates are circumferentially arrayed with the axis of installation frame as the reference, the outer side of the clamping plate is fixedly connected with the connecting rod, the side of the clamping plate away from the axis of installation frame is the outer side, and the outer end of the connecting rod penetrates the installation frame and is slidably connected with the driving ring rotatably connected to the outer side of the installation frame.

[0004] The bridge detection device above-mentioned is clamped to the four around of prestressed tendon by clamping plate, and the side of clamping plate and prestressed tendon contact is arc-shaped setting, because there is different specification prestressed tendon on the market, and the number of clamping plate is limited, so when clamping different specification prestressed tendon, the contact point area is different, and the four around of prestressed tendon is difficult to be completely covered by clamping plate, and the stress of uncovered position and covered position is not same, and ultrasonic may produce error in the process of detection. UTILITY MODEL CONTENTS

[0005] The utility model discloses a bridge structure stress detection device to solve the problem that the bridge detection device on the market is difficult to make the stress of four around same as the background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a bridge structure stress detection device, including a pair of installation frame, installation ring, ultrasonic receiving end and ultrasonic transmitting end, and the installation ring is connected through screw thread, and a pair of installation frame inside is installed with ultrasonic transmitting end and ultrasonic receiving end respectively, characterized in that, the inside of installation frame is provided with a limit ring, and the limit ring is a hollow circular table structure, and the limit ring clamps different bridge structures.

[0007] Preferably, the top of the installation frame is threadedly connected with a middle threaded rod and a side threaded rod, the bottom of the middle threaded rod is rotatably connected with a mounting plate, the other side of the mounting plate is installed with the ultrasonic transmitting end or the ultrasonic receiving end, and the ultrasonic receiving end and the ultrasonic transmitting end are arranged in pair.

[0008] Preferably, the bottom of the side threaded rod is rotationally connected with a fixing rod, and the other end of the fixing rod is fixed with the limiting ring.

[0009] Preferably, equiangular long grooves and short grooves are arranged inside the mounting frame, a lower limiting column is slid in the short groove, the other end of the lower limiting column is fixed with the limiting ring, and an upper limiting column is slid in the long groove, and the other end of the upper limiting column is fixed with the mounting plate.

[0010] Preferably, the long groove and the short groove are staggered, and the upper limiting column is located on the top of the lower limiting column.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. The utility model discloses a limiting ring, a lower limiting column and a short groove, the lower limiting column is slid in the short groove to change the position of the limiting ring, the limiting ring is a hollow circular table structure, can be adjusted according to the specification of the prestressed tendon, the limiting ring is in complete contact with the periphery of the prestressed tendon, so that the periphery of the prestressed tendon is stressed equally, and the normal detection of the ultrasonic wave is not affected.

[0013] 2. The utility model discloses an upper limiting column and a long groove, the upper limiting column is slid in the long groove, and the movement of the upper limiting column changes the distance between the ultrasonic wave transmitting end and the ultrasonic wave receiving end, can be adjusted correspondingly according to the length of the prestressed tendon, so that the overall application range is wider. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is a mounting frame main section structure schematic diagram of the utility model;

[0016] Figure 3 It is a mounting frame bottom structure schematic diagram of the utility model;

[0017] Figure 4 It is a limiting ring top structure schematic diagram of the utility model.

[0018] In the drawing: 1, mounting frame;2, mounting ring;3, side threaded rod;4, middle threaded rod;5, short groove;6, lower limiting column;7, fixing rod;8, upper limiting column;9, ultrasonic wave transmitting end;10, mounting plate;11, limiting ring;12, long groove. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0020] Please refer to Figures 1-4 The present application provides the following technical solutions:

[0021] The bridge structure stress detection device comprises a pair of mounting frames 1, mounting rings 2, an ultrasonic wave receiving end and an ultrasonic wave transmitting end 9, the mounting frames 1 are provided with the mounting rings 2 at the ends, the mounting rings 2 are connected through threads, and the ultrasonic wave transmitting end 9 and the ultrasonic wave receiving end are respectively arranged in the mounting frames 1.

[0022] The prestressed reinforcement is arranged at the middle position of the mounting frames 1, then the mounting frame 1 at one side is rotated by hand, the mounting frame 1 is driven to rotate synchronously by the mounting ring 2 arranged above, and the mounting frames 1 are mounted together through threads between the mounting rings 2.

[0023] The mounting frame 1 is internally provided with a limiting ring 11, the limiting ring 11 is a hollow circular table structure, the limiting ring 11 clamps different bridge structures, the bottom of the side threaded rod 3 is rotatably connected with a fixing rod 7, and the other end of the fixing rod 7 is fixed with the limiting ring 11.

[0024] The side threaded rod 3 is rotated by hand, the side threaded rod 3 is lifted and lowered while rotating, the side threaded rod 3 drives the fixing rod 7 to move synchronously, the fixing rod 7 drives the limiting ring 11 to move synchronously, the limiting ring 11 moves to the side close to the prestressed reinforcement, until the side threaded rod 3 cannot be rotated, at this moment, the limiting ring 11 is in abutment with the end of the prestressed reinforcement, the prestressed reinforcement is uniformly stressed around the end due to the structure of the limiting ring 11, the normal detection of the ultrasonic wave is not affected, and the accuracy of the detection data is improved.

[0025] The inside of the short sliding groove 5 is slidably provided with a lower limiting column 6, and the other end of the lower limiting column 6 is fixed with the limiting ring 11.

[0026] The limiting ring 11 drives the lower limiting column 6 to move synchronously, the lower limiting column 6 slides in the short sliding groove 5, and the limiting ring 11 is prevented from rotating by cooperation between the lower limiting column 6 and the short sliding groove 5.

[0027] The middle threaded rod 4 is rotationally connected with the mounting plate 10 at the bottom, the inside of the mounting frame 1 is provided with long grooves 12 and short grooves 5 at equal angles, the upper limit column 8 is slid in the long grooves 12, the other end of the upper limit column 8 is fixed with the mounting plate 10, the long grooves 12 are staggered with the short grooves 5, and the upper limit column 8 is located at the top of the lower limit column 6.

[0028] Then the middle threaded rod 4 is rotated by hand, the middle threaded rod 4 is lifted while rotating, the middle threaded rod 4 drives the mounting plate 10 to be lifted synchronously, the mounting plate 10 drives the upper limit column 8 to move synchronously, the upper limit column 8 is slid in the long grooves 12, and the mounting plate 10 is prevented from rotating through cooperation of the upper limit column 8 and the long grooves 12.

[0029] The other side of the mounting plate 10 is provided with an ultrasonic wave transmitting end 9 or an ultrasonic wave receiving end, and the ultrasonic wave receiving end and the ultrasonic wave transmitting end 9 are provided in pair.

[0030] When the ultrasonic wave transmitting end 9 and the ultrasonic wave receiving end are in contact with the prestressed tendon, the ultrasonic wave transmitting end 9 and the ultrasonic wave receiving end can be closely contacted with the prestressed tendon, so that the ultrasonic wave can be stably transmitted and received.

[0031] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A bridge structure stress detection device comprising a pair of mounting frames (1), mounting rings (2), an ultrasonic wave receiving end and an ultrasonic wave transmitting end (9), the mounting frames (1) having the mounting rings (2) mounted at the end portions thereof, the mounting rings (2) being connected by a screw thread, and the pair of mounting frames (1) having the ultrasonic wave transmitting end (9) and the ultrasonic wave receiving end mounted therein, respectively, characterized in that, The mounting frame (1) is internally provided with a limiting ring (11), the limiting ring (11) is a hollow circular table structure, and the limiting ring (11) clamps different bridge structures.

2. The bridge structure stress detection device according to claim 1, characterized by: The top of the mounting frame (1) is threadedly connected with a middle threaded rod (4) and a side threaded rod (3), the bottom of the middle threaded rod (4) is rotatably connected with a mounting plate (10), the other side of the mounting plate (10) is provided with an ultrasonic wave transmitting end (9) or an ultrasonic wave receiving end, and the ultrasonic wave receiving end and the ultrasonic wave transmitting end (9) are provided in pair.

3. The bridge structure stress detection apparatus according to claim 2, characterized by: The bottom of the side threaded rod (3) is rotatably connected with a fixing rod (7), and the other end of the fixing rod (7) is fixed with the limiting ring (11).

4. The bridge structure stress detection apparatus according to claim 1, characterized by: The mounting frame (1) is internally and equiangularly provided with a long sliding groove (12) and a short sliding groove (5), the inside of the short sliding groove (5) is slidably provided with a lower limiting column (6), the other end of the lower limiting column (6) is fixed with the limiting ring (11), the inside of the long sliding groove (12) is slidably provided with an upper limiting column (8), and the other end of the upper limiting column (8) is fixed with the mounting plate (10).

5. The bridge structure stress detection apparatus according to claim 4, characterized by: The long sliding groove (12) and the short sliding groove (5) are arranged in a staggered mode, and the upper limiting column (8) is located at the top of the lower limiting column (6).

Images