Fixing device for monitoring grouting compactness of bridge prestressed pipeline

Abstract

The utility model discloses a fixing device for monitoring the grouting compactness of a bridge prestressed pipeline, which comprises a shell, a pressure button is movably arranged at the top of the shell, one end of the pressure button is connected with a dowel bar, the dowel bar is arranged in the shell, a fixing rod is arranged at the bottom of the dowel bar, and the fixing rod is connected with the pressure button. One end of the fixing rod penetrates through the bearing seat and is connected with a main sensor, the main sensor is arranged at the bottom in the shell, a cross chuck is further arranged on the outer side of the fixing rod, a main spring is connected to the outer side of the cross chuck in a sleeving mode, and adjusting type pressure monitoring assemblies for expanding the monitoring range are further arranged on the two sides of the bearing seat. The longitudinal position of the main sensor can be adjusted, and the vertical detection range of the main sensor is expanded; and the transverse range of the secondary sensor can be adjusted, so that the transverse detection range of the secondary sensor is expanded, and the detection accuracy of the grouting fullness of the bridge prestressed pipeline is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge prestressed pipeline pressure grouting compactness monitoring technology, especially in a kind of for bridge prestressed pipeline pressure grouting compactness monitoring fixed device. BACKGROUND

[0002] The pressure grouting compactness of concrete bridge prestressed pipeline directly influences the durability of bridge structure, currently pressure grouting compactness is usually determined by observing whether the gas outlet on the top of prestressed pipeline is grouting, but considering that there is grout backflow at the top of prestressed pipeline, this method often appears to be wrong. Chinese patent CN105223344A discloses a kind of method and detection instrument for detecting the grouting fullness of assembled concrete structure reinforcing sleeve (patent No. CN201510679567.0). The detection device can feedback grouting fullness in real time based on vibration damping attenuation principle, and the detector extends into the pipeline through the reserved hole, but the detection position is fixed. Considering that the size of prestressed pipeline is relatively large, the traditional device lacks detection of grouting fullness vertically downward and on both sides. Greater monitoring range and angle are needed to meet the monitoring needs of prestressed pipeline pressure grouting compactness.

[0003] In view of the above, in order to improve the detection range of the detector and improve the accuracy of the detection result, a kind of fixed device for bridge prestressed pipeline pressure grouting compactness monitoring is needed. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a kind of fixed device for bridge prestressed pipeline pressure grouting compactness monitoring, which moves the sensor part downward by pressing, expands the vertical detection range of main sensor, uses the way of secondary spring to pop out secondary sensor, expands the horizontal detection range of sensor, thus expands the overall range of sensor detection, and improves the accuracy of grouting fullness detection.

[0005] In order to solve the above technical problem, the utility model provides a kind of fixed device for bridge prestressed pipeline pressure grouting compactness monitoring, which includes shell, the pressure button is movably arranged on the top of shell, one end of the pressure button is connected with force link, the force link is arranged in shell, fixed rod is arranged at the bottom of force link, one end of fixed rod penetrates through bearing seat and is connected with main sensor, main sensor is arranged at the bottom of shell, cross head is further arranged on the outer side of fixed rod, main spring is sleeved on the outer side of cross head, adjustable pressure monitoring assembly for expanding monitoring range is further arranged on both sides of bearing seat.

[0006] Preferably, retaining ring is further arranged on the outer side of cross head, which can guide and limit the movement of cross head.

[0007] Preferably, one end of the retaining ring is in abutment with the spring baffle, and the other end of the retaining ring is clamped with the upper limiting plate, so that the position of the fixed rod and the force transmission rod can be limited.

[0008] Preferably, the spring baffle is arranged in the middle of the shell, and the upper limiting plate is arranged on the lower side of the spring baffle in the shell, so that the retaining ring can be positioned and installed.

[0009] Preferably, a lower limiting plate is further arranged on the lower side of the upper limiting plate in the shell, so that the longitudinal movement position of the retaining ring can be limited.

[0010] Preferably, the adjustable pressure monitoring assembly comprises a telescopic arm, one end of the telescopic arm is provided with a secondary sensor, and the monitoring range of the secondary sensor can be adjusted.

[0011] Preferably, a sensor baffle is further arranged at one end of the telescopic arm, the sensor baffle is connected with the secondary sensor, and the secondary sensor can be installed and protected.

[0012] Preferably, a secondary spring is further sleeved outside the telescopic arm, one end of the secondary spring is connected with the sensor baffle, and the other end of the secondary spring is connected with the telescopic arm, so that the telescopic arm can be automatically extended.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model discloses a transmission of pressure button can adjust the longitudinal position of main sensor, can expand the vertical detection range of main sensor.

[0015] 2. The utility model discloses the extension of telescopic arm can adjust the horizontal range of secondary sensor, can expand the horizontal detection range of secondary sensor, improves the detection accuracy of bridge prestressed pipe grouting fullness. DRAWINGS

[0016] Figure 1 The whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the front view structure schematic diagram of the utility model;

[0018] Figure 3 It is the structure schematic diagram of the shell internal component in the utility model;

[0019] Figure 4 It is the bridge prestressed pipe layout;

[0020] Figure 5 It is Figure 4 The local amplification structure schematic diagram of A department in;

[0021] In the figure: 1, pressure button, 2, shell, 3, force transmission rod, 4, main spring, 5, fixed rod, 6, retaining ring, 7, cross head, 8, secondary spring, 9, secondary sensor, 10, primary sensor, 11, spring baffle, 12, upper limit plate, 13, lower limit plate, 14, telescopic arm, 15, sensor baffle, 16, bearing seat, 17, bridge pier, 18, prestressed pipe, 19, beam body, 20, exhaust hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. All directional indications (such as up, down, left, right, front, back, etc.) in the utility model are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications also change accordingly.

[0023] Please refer to Figures 1-5 A fixing device for monitoring the grouting compactness of a bridge prestressed pipe 18, a shell 2 is fixed on a top reserved hole of the bridge prestressed pipe 18 to be measured, a pressure button 1 is movably arranged on the top of the shell 2, one end of the pressure button 1 is connected with a force transmission rod 3, the force transmission rod 3 is arranged in the shell 2, a fixed rod 5 is arranged at the bottom of the force transmission rod 3, one end of the fixed rod 5 penetrates through a bearing seat 16 and is connected with a primary sensor 10, the primary sensor 10 is arranged at the bottom of the shell 2, a cross head 7 is further arranged outside the fixed rod 5, a main spring 4 is sleeved outside the cross head 7, one end of the main spring 4 is connected with a spring baffle 11, and the other end of the main spring 4 is connected with the force transmission rod 3.

[0024] By pushing the pressure button 1 downward, the pressure button 1 can drive the primary sensor 10 to move downward through the force transmission rod 3, and at the same time, the main spring 4 is compressed. With the movement of the force transmission rod 3, the primary sensor 10 can be moved out of the shell 2, the longitudinal position of the primary sensor 10 is adjusted, and the monitoring range of the primary sensor 10 is expanded.

[0025] Further, a retaining ring 6 is further arranged outside the cross head 7. When the force transmission rod 3 moves, the cross head 7 clamps the fixed rod 5 and drives the retaining ring 6 to move downward, and the movement of the cross head 7 can be guided and limited.

[0026] Further, one end of the retaining ring 6 abuts against the spring baffle 11, and the other end of the retaining ring 6 is clamped with an upper limit plate 12, so that the positions of the fixed rod 5 and the force transmission rod 3 can be limited.

[0027] Further, the spring baffle 11 is arranged in the middle part of the shell 2, and the upper limit plate 12 is arranged in the shell 2 below the spring baffle 11, so that the retaining ring 6 can be positioned and installed.

[0028] Further, a lower limit plate 13 is arranged in the shell 2 below the upper limit plate 12, and when the retaining ring 6 is moved to abut against the lower limit plate 13, the longitudinal movement position of the retaining ring 6 is limited.

[0029] Please refer to Figures 1-3 The adjustable pressure monitoring assembly further comprises telescopic arms 14 arranged on both sides of the bearing seat 16, one end of each telescopic arm 14 is provided with a secondary sensor 9, the monitoring range of the secondary sensor 9 can be adjusted, one end of each telescopic arm 14 is further provided with a sensor baffle 15 connected with the secondary sensor 9, the secondary sensor 9 can be installed and protected, and the outer side of each telescopic arm 14 is further sleeved with a secondary spring 8, one end of the secondary spring 8 is connected with the sensor baffle 15, and the other end of the secondary spring 8 is connected with the telescopic arm 14, when the secondary sensor 9 is in the shell 2, the secondary spring 8 is in a compressed state, and when the secondary sensor 9 moves out of the shell 2, the telescopic arm 14 can be automatically extended through the elastic force of the secondary spring 8.

[0030] When the bearing seat 16 is moved by the fixed rod 5, the two groups of secondary sensors 9 are simultaneously moved downward by the bearing seat 16, when the secondary sensor 9 moves out of the shell 2, the telescopic arm 14 is extended by the secondary spring 8, and the lateral positions of the two groups of secondary sensors 9 are expanded.

[0031] The working principle and use process of the utility model are as follows:

[0032] In use, the shell 2 is fixed on the top reserved hole of the prestressed pipe 18 to be detected, the prestressed pipe 18 is arranged in the beam body 19, the beam body 19 is arranged on the pier 17, after the fixing is completed, detection is carried out, in detection, the pressure button 1 is pressed, the pressure button 1 drives the force transmission rod 3 to move downwards, the force transmission rod 3 compresses the main spring 4, and the cross-shaped chuck 7 is extruded downwards, the cross-shaped chuck 7 clamps the fixed rod 5 and drives the retaining ring 6 to move downwards, when moving to a certain extent, the retaining ring 6 stops moving under the action of the lower limit plate 13, at this time, the cross-shaped chuck 7 can still temporarily clamp the fixed rod 5 to move downwards, but with the movement, the cross-shaped chuck 7 loses the limitation of the retaining ring 6, so that it cannot clamp the fixed rod 5 again, the fixed rod 5 moves downwards alone, and the cross-shaped chuck 7 rebounds to the original position under the action of the main spring 4. Repeating the process can move the main sensor 10 and the secondary sensor 9 downwards as a whole, so that longitudinal fullness detection can be carried out, with the continuous movement of the downward movement process, the sensor baffle 15 slides out of the shell 2, so the secondary spring 8 loses the limitation, drives the telescopic arm 14 to pop out, and the secondary sensor 9 also extends transversely, so that transverse fullness detection can be carried out, the sensor part is moved downwards in the pressing mode, the vertical detection range of the main sensor 10 is expanded, the secondary spring 8 is adopted to pop out the secondary sensor 9, the horizontal detection range of the sensor is expanded, so the overall detection range of the sensor is expanded, and the accuracy of the grouting fullness detection is improved.

[0033] The prestressed pipe 18 is also provided with an exhaust hole 20 for exhausting air in the pipe.

[0034] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fixing device for monitoring the grouting compactness of prestressed ducts (18) in bridges, comprising a housing (2), characterized in that, A pressure button (1) is movably installed on the top of the outer casing (2). One end of the pressure button (1) is connected to the force transmission rod (3). The force transmission rod (3) is installed inside the outer casing (2). A fixing rod (5) is installed at the bottom of the force transmission rod (3). One end of the fixing rod (5) passes through the bearing seat (16) and is connected to the main sensor (10). The main sensor (10) is installed at the bottom inside the outer casing (2). A cross clamp (7) is also installed on the outside of the fixing rod (5). A main spring (4) is sleeved on the outside of the cross clamp (7). Adjustable pressure monitoring components that expand the monitoring range are also installed on both sides of the bearing seat (16).

2. The fixing device for monitoring the grouting compactness of prestressed ducts (18) in bridges according to claim 1, characterized in that, A retaining ring (6) is also provided on the outside of the cross clamp (7).

3. The fixing device for monitoring the grouting compactness of prestressed ducts (18) in bridges according to claim 2, characterized in that, One end of the retaining ring (6) abuts against the spring baffle (11), and the other end of the retaining ring (6) is engaged with the upper limit plate (12).

4. The fixing device for monitoring the grouting compactness of prestressed ducts (18) in bridges according to claim 3, characterized in that, The spring baffle (11) is located in the middle of the outer shell (2), and the upper limit plate (12) is located in the outer shell (2) below the spring baffle (11).

5. The fixing device for monitoring the grouting compactness of prestressed ducts (18) in bridges according to claim 2 or 3, characterized in that, A lower limit plate (13) is also provided inside the outer shell (2) on the lower side of the upper limit plate (12).

6. The fixing device for monitoring the grouting compactness of prestressed ducts (18) in bridges according to claim 1, characterized in that, The adjustable pressure monitoring assembly includes a telescopic arm (14), which is disposed on both sides of the support base (16), and a secondary sensor (9) is disposed at one end of the telescopic arm (14).

7. The fixing device for monitoring the grouting compactness of prestressed ducts (18) in bridges according to claim 6, characterized in that, A sensor baffle (15) is also provided at one end of the telescopic arm (14), and the sensor baffle (15) is connected to the secondary sensor (9).

8. The fixing device for monitoring the grouting compactness of prestressed ducts (18) in bridges according to claim 6 or 7, characterized in that, A secondary spring (8) is also sleeved on the outside of the telescopic arm (14). One end of the secondary spring (8) is connected to the sensor baffle (15), and the other end of the secondary spring (8) is connected to the telescopic arm (14).

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