Auxiliary device for displacement test of prestressed uplift pile

Abstract

The utility model discloses a pre-stress uplift pile displacement test auxiliary device, and particularly relates to the technical field of pile body test, the pre-stress uplift pile displacement test auxiliary device comprises a steel strand and a displacement detector, and the displacement detector is used for measuring the displacement of the steel strand; and the auxiliary assembly is used for assisting the measurement of the steel strand, the auxiliary assembly comprises a movable base and a measuring platform sleeved on the steel strand, the steel strand is located in the middle of the interior of the movable base, and a fixing assembly for connecting the measuring platform with the steel strand is arranged on the measuring platform. Through the arrangement of the auxiliary assembly, the displacement test of the pile body can be realized, and the accuracy of the test result of the pile body can be ensured, so that the problems that the pile body is easily damaged and the measurement precision is low due to the need of punching and mounting a bracket on the pile body in the prior art, and a displacement detector is directly mounted on the pile body; therefore, the displacement measurement efficiency of the pile body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pile body testing, in particular to a prestressed pull-out pile displacement testing auxiliary device. Background Art

[0002] The prestressed pull-out pile displacement test is a test used to evaluate the displacement performance of prestressed anchor piles when subjected to horizontal pull-out forces. It can help engineers and construction workers understand the performance of prestressed anchor piles in actual projects, thereby ensuring project quality and safety. In the prestressed pull-out pile displacement test, auxiliary devices are generally used to collaborate with the pile pull-out displacement test to improve test efficiency.

[0003] The existing displacement test of prestressed pull-out piles generally requires a displacement sensor to measure the displacement of the pile body. However, during the existing pile body test, the displacement sensor is usually installed directly on the pile body, which requires drilling holes and installing brackets on the pile body, which can easily cause damage to the pile body and has low measurement accuracy. In addition, since the sensor is directly installed on the pile body, it is easily affected by the deformation and vibration of the pile body, resulting in inaccurate measurement results and reducing the displacement measurement efficiency of the pile body. Utility Model Content

[0004] The utility model aims to provide a prestressed pull-out pile displacement test auxiliary device to solve the above-mentioned technical deficiencies.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prestressed pull-out pile displacement test auxiliary device, comprising:

[0006] Steel strands and displacement detectors, and the displacement detector is used to measure the displacement of the steel strands; and a horizontal pulling force is used to simulate the force conditions that may occur in practice, which is usually accomplished by a hydraulic drawing machine or other special equipment. Therefore, the structure and principle of the steel strands and the displacement detector can be associated by technicians in this field based on common sense. Therefore, the structure is common knowledge known in the art, so it is not described in detail in this application.

[0007] An auxiliary component is used to assist in the measurement of steel strands. The auxiliary component includes a mobile base and a measuring platform sleeved on the steel strand, and the steel strand is located in the middle of the mobile base. A fixing component connecting it to the steel strand is provided on the measuring platform. A cross bar is installed on the mobile base, and a pluggable support rod is installed at one end of the cross bar, and the bottom of the measuring platform is slidably connected to the outside of the support rod. A locking component for fixing the support rod is provided on the cross bar, and the outside of the support rod is installed with the bottom of the displacement detector. An adjustment component for driving the adjustment of the cross bar is provided on the mobile base, and a balancing component for positioning it is provided on the mobile base, and the displacement detector is erected and installed after the support rod is adjusted, so as to facilitate the detector and the measuring platform to maintain good coordination.

[0008] Preferably, the locking assembly includes a plurality of first screw holes opened on the outside of the support rod and a second screw hole opened on the outside of the cross rod, a threaded column is screwed on the cross rod, and the threaded column is screwed into a first screw hole corresponding to the second screw hole through the second screw hole; by setting the support rod, it is used to support the measuring platform, thereby ensuring the stability of the measuring platform.

[0009] Preferably, a rotatable moving wheel is also installed at the bottom end of the moving base, and the moving wheel is used to push the moving base to move; through the provision of the moving wheel, the auxiliary device can be conveniently moved.

[0010] Preferably, the fixing assembly comprises an upper mounting sleeve and a lower mounting sleeve respectively fixed to the top and bottom ends of the measuring platform, and an anti-skid pad fixed in the upper mounting sleeve and the lower mounting sleeve for the steel strand to slide into;

[0011] Preferably, the adjustment assembly includes a fixed connecting rod fixed to the top of the mobile base and a second supporting rod fixed to one end of the cross rod, and the second supporting rod is slidably connected to the fixed connecting rod, a plurality of threaded grooves are provided on the outside of the second supporting rod, a third screw hole is provided on the outside of the fixed connecting rod, a threaded fixing column is screwed on the fixed connecting rod, and the threaded fixing column is screwed into the threaded groove corresponding to the third screw hole through the third screw hole;

[0012] Preferably, the balancing assembly includes a pluggable bubble level installed on the top of a mobile base and a snap-in block fixed on the bottom of the bubble level, and one end of the mobile base is provided with a snap-in slot for inserting the snap-in block; the bubble level is set to monitor the horizontal state of the device to ensure the accuracy of the data during testing.

[0013] Preferably, the balancing assembly also includes a leveling threaded rod screwed to the top of the mobile base, and one end of the leveling threaded rod passes through the bottom of the mobile base and is fixed with a support pad; by setting the leveling threaded rod, the mobile base is kept level, ensuring the stability of the displacement detector during testing.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. Through the setting of auxiliary components, the displacement test of the pile body can be realized, which can ensure the accuracy of the pile body test results, thereby solving the existing need to drill holes and install brackets on the pile body, which is easy to cause damage to the pile body and has low measurement accuracy. In addition, since the displacement detector is directly installed on the pile body, it is easily affected by the deformation and vibration of the pile body, thereby improving the displacement measurement efficiency of the pile body.

[0016] 2. By setting up the balancing component, the mobile base can be kept in a horizontal state, that is, the displacement detector and the steel strand are kept horizontal, avoiding large deviations in the measurement results, improving the accuracy of the displacement detector in measuring the displacement of the steel strand, and improving the displacement measurement efficiency of the pile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the auxiliary components;

[0020] Figure 3 For this utility model Figure 1 A schematic diagram of the structure of the middle regulating component;

[0021] Figure 4 For this utility model Figure 1 Schematic diagram of the structure of the balancing component.

[0022] Description of reference numerals:

[0023] 1. Steel strand; 11. Displacement detector; 2. Auxiliary components; 21. Measuring platform; 22. Upper mounting sleeve; 23. Lower mounting sleeve; 24. Cross bar; 25. Support rod; 26. First screw hole; 27. Moving wheel; 28. Threaded column; 29. ​​Moving base; 3. Adjustment component; 31. Fixed connecting rod; 32. Second support rod; 33. Threaded groove; 34. Third screw hole; 35. Threaded fixing column; 4. Balance component; 41. Snap-in block; 42. Bubble level; 43. Snap-in groove; 44. Support pad; 45. Leveling threaded rod. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-Figure 4 A prestressed pull-out pile displacement test auxiliary device is shown, comprising:

[0026] A steel strand 1 and a displacement detector 11, wherein the displacement detector 11 is used for measuring the displacement of the steel strand 1;

[0027] The auxiliary component 2 is used to assist in the measurement of the steel strand 1. The auxiliary component 2 includes a mobile base 29 and a measuring platform 21 sleeved on the steel strand 1, and the steel strand 1 is located in the middle of the mobile base 29. The measuring platform 21 is provided with a fixing component connecting it to the steel strand 1. A cross bar 24 is installed on the mobile base 29, and a pluggable support rod 25 is installed at one end of the cross bar 24. The bottom of the measuring platform 21 is slidably connected to the outside of the support rod 25, and a locking component is provided on the cross bar 24 to fix the support rod 25. The outside of the support rod 25 is installed with the bottom of the displacement detector 11. The mobile base 29 is provided with an adjustment component 3 for driving the adjustment of the cross bar 24, and the mobile base 29 is provided with a balancing component 4 for positioning it.

[0028] The locking assembly includes a plurality of first screw holes 26 formed outside the support rod 25 and a second screw hole formed outside the cross bar 24. A threaded column 28 is screwed onto the cross bar 24 and the threaded column 28 is screwed into the first screw hole 26 corresponding to the second screw hole through the second screw hole.

[0029] The fixing assembly comprises an upper mounting sleeve 22 and a lower mounting sleeve 23 respectively fixed to the top and bottom ends of the measuring platform 21 and an anti-skid pad fixed in the upper mounting sleeve 22 and the lower mounting sleeve 23 for the steel strand 1 to slide into.

[0030] As can be seen from the above, when in use, first move the mobile base 29 to the working position, so that the 15 to be detected is moved to the middle part of the mobile base 29, passes through 15 in sequence through the upper mounting sleeve 22, the measuring platform 21 and the lower mounting sleeve 23, and fits tightly with the outside of 15 under the action of the anti-slip pad, and then the upper mounting sleeve 22, the measuring platform 21 and the lower mounting sleeve 23 are installed at the appropriate position of 15, and then the threaded column 28 is rotated and disengaged along one of the first screw holes 26 and the second screw hole, so that the support rod 25 and the cross bar 24 lose the limiting effect, and the support rod 25 is pulled close to the bottom of the measuring platform 21 to stably support the measuring platform 21, that is, the displacement detector 11 and the measuring platform 21 are kept level, and then the threaded column 28 is re- The steel strand 1 is screwed into the second screw hole and another first screw hole 26, and then the steel strand 1 is pulled to simulate the stress displacement test of the pile body. Then the steel strand 1 moves and drives the measuring platform 21 to slide along the support rod 25, that is, the displacement of the stress pull-out pile is converted into the displacement of the measuring platform 21 through the auxiliary component 2, and the displacement of the measuring platform 21 is tested by the displacement detector 11, so as to achieve more accurate displacement measurement, so as to realize the displacement test of the pile body, and ensure the accuracy of the pile body test result, thereby solving the existing need to drill holes and install brackets on the pile body, which is easy to cause damage to the pile body and has low measurement accuracy. In addition, since the displacement detector 11 is directly installed on the pile body, it is easily affected by the deformation and vibration of the pile body, thereby improving the displacement measurement efficiency of the pile body.

[0031] Furthermore, a rotatable moving wheel 27 is also installed at the bottom end of the mobile base 29, and the moving wheel 27 is used to push the mobile base 29 to move; based on this, through the setting of the moving wheel 27, the moving wheel 27 can assist the mobile base 29 to move conveniently, so as to facilitate the mobile base 29 to be quickly pushed to the position where testing is required, thereby improving the testing efficiency.

[0032] Furthermore, the adjusting assembly 3 includes a fixed connecting rod 31 fixed to the top of the mobile base 29 and a second supporting rod 32 fixed to one end of the cross bar 24, and the second supporting rod 32 is slidably connected to the fixed connecting rod 31, a plurality of thread grooves 33 are provided on the outside of the second supporting rod 32, a third screw hole 34 is provided on the outside of the fixed connecting rod 31, a threaded fixing column 35 is screwed on the fixed connecting rod 31, and the threaded fixing column 35 is screwed into the thread groove 33 corresponding to the third screw hole 34 through the third screw hole 34; based on this, according to the different heights of the pile body to be detected, the threaded fixing column 35 is rotated to move it along its The second support rod 32 is then pulled out from the inside of the fixed connecting rod 31, that is, the cross bar 24 is moved upward along the fixed connecting rod 31, so that the height of the cross bar 24 is changed. After the cross bar 24 is adjusted to a suitable position, the threaded fixing column 35 is re-engaged and fixed with the third screw hole 34 and another threaded groove 33, and the cross bar 24 is stably installed on the fixed connecting rod 31, so that it can adapt to the pile foundation testing requirements of different pile bodies and improve the testing efficiency of the pile body by the device.

[0033] In addition, refer to Figure 1 and Figure 4 As shown, the balancing assembly 4 includes a pluggable bubble level 42 installed on the top of the mobile base 29 and a clamping block 41 fixed to the bottom of the bubble level 42, and one end of the mobile base 29 is provided with a clamping groove 43 for the clamping block 41 to be inserted; the balancing assembly 4 also includes a leveling threaded rod 45 screwed to the top of the mobile base 29, and one end of the leveling threaded rod 45 passes through the bottom of the mobile base 29 and is fixed with a support pad 44.

[0034] Through the above technical solution:

[0035] After the mobile base 29 is moved to the working position, the leveling threaded rod 45 is rotated to screw it into the mobile base 29, and then one end of the leveling threaded rod 45 pushes the support pad 44 to make the support pad 44 contact with the ground. However, with the assistance of the bubble level 42, it can be ensured that the mobile base 29 is adjusted to a horizontal level to maintain the stability of the device, so that the mobile base 29 can be kept in a horizontal state, that is, the displacement detector 11 and the steel strand 1 are kept horizontal, thereby avoiding large deviations in the measurement results, improving the accuracy of the displacement detector 11 in measuring the displacement of the steel strand 1, improving the displacement measurement efficiency of the pile body, and facilitating people's use.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A prestressed pull-out pile displacement test auxiliary device, characterized in that: include: A steel strand (1) and a displacement detector (11), wherein the displacement detector (11) is used for measuring the displacement of the steel strand (1); An auxiliary component (2) is used to assist in measuring a steel strand (1). The auxiliary component (2) comprises a movable base (29) and a measuring platform (21) sleeved on the steel strand (1), wherein the steel strand (1) is located in the middle of the movable base (29). The measuring platform (21) is provided with a fixing component for connecting it to the steel strand (1). The movable base (29) is provided with a cross bar (24), one end of which is provided with a pluggable support bar (25), and the bottom of the measuring platform (21) is slidably connected to the outside of the support bar (25). The cross bar (24) is provided with a locking component for fixing the support bar (25), and the outside of the support bar (25) is installed with the bottom of a displacement detector (11). The movable base (29) is provided with an adjusting component (3) for driving the cross bar (24) to adjust, and the movable base (29) is provided with a balancing component (4) for positioning it.

2. The prestressed pull-out pile displacement test auxiliary device according to claim 1, characterized in that: The locking assembly comprises a plurality of first screw holes (26) provided on the outside of the support rod (25) and a second screw hole provided on the outside of the cross rod (24); a threaded column (28) is screwed on the cross rod (24), and the threaded column (28) is screwed into a first screw hole (26) corresponding to the second screw hole through the second screw hole.

3. The prestressed pull-out pile displacement test auxiliary device according to claim 1, characterized in that: A rotatable moving wheel (27) is also installed at the bottom end of the moving base (29), and the moving wheel (27) is used to push the moving base (29) to move.

4. The prestressed pull-out pile displacement test auxiliary device according to claim 1, characterized in that: The fixing assembly comprises an upper mounting sleeve (22) and a lower mounting sleeve (23) respectively fixed to the top and bottom ends of the measuring platform (21), and an anti-slip pad fixed in the upper mounting sleeve (22) and the lower mounting sleeve (23) for the steel strand (1) to slide into.

5. The prestressed pull-out pile displacement test auxiliary device according to claim 1, characterized in that: The adjustment assembly (3) comprises a fixed connecting rod (31) fixed on the top of the movable base (29) and a second supporting rod (32) fixed on one end of the cross rod (24), and the second supporting rod (32) is slidably connected to the fixed connecting rod (31), a plurality of thread grooves (33) are provided on the outside of the second supporting rod (32), a third screw hole (34) is provided on the outside of the fixed connecting rod (31), a threaded fixing column (35) is screwed on the fixed connecting rod (31), and the threaded fixing column (35) is screwed into the thread groove (33) corresponding to the third screw hole (34) through the third screw hole (34).

6. The prestressed pull-out pile displacement test auxiliary device according to claim 1, characterized in that: The balancing assembly (4) comprises a bubble level (42) which is pluggable and mounted on the top of a movable base (29) and a clamping block (41) which is fixed on the bottom of the bubble level (42), and a clamping groove (43) for inserting the clamping block (41) is provided at one end of the movable base (29).

7. The prestressed pull-out pile displacement test auxiliary device according to claim 1, characterized in that: The balancing assembly (4) also includes a leveling threaded rod (45) threadedly connected to the top of the movable base (29), and one end of the leveling threaded rod (45) penetrates to the bottom of the movable base (29) and is fixed with a support pad (44).

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