An ultrasonic variable cross-section foundation pile forming detection device

Abstract

The application discloses a kind of ultrasonic variable cross-section foundation pile forming detection device, including support one: the support one upper end is fixedly provided with support two, the support two rear end is provided with analyzer.The application is by putting into the area of measurement by detecting mechanism through groove one, starting quick, the engine rotates, the engine drives detection head rotation, carries out data collection and calibration processing, data is stable, rotates transmission line table, transmission line one drives detecting mechanism to move up and down, carries out detection, compared with traditional device, the device utilizes putting into the area of measurement by detecting mechanism, starts engine, the engine rotates and drives detection head rotation, starts data collection and calibration processing, rotates transmission line table and drives detecting mechanism to move up and down, carries out measurement, to overcome the limitation of must pre-burying acoustic measuring tube detection, and can directly detect the inclination after foundation pile forming, and directly observe the size of variable cross-section place forming, cavity.

Description

Technical Field

[0001] This invention belongs to the field of pile foundation testing technology, specifically an ultrasonic variable cross-section pile formation testing device. Background Technology

[0002] In existing pile foundation construction processes, pile testing mainly employs two methods: sampling and on-site testing. Sampling and on-site testing typically involves manual sampling, sending samples to a testing institution. However, this method cannot reflect the real-time situation at the construction site, cannot promptly identify and resolve problems, has weak sample representativeness, is easily affected by human factors, and is time-consuming, impacting construction progress. On-site testing generally uses traditional core drilling or ultrasonic methods, requiring multiple detectors simultaneously. Distance and weather conditions can introduce errors during testing, affecting surface work and making it impossible to directly detect the pile's inclination after completion, thus impacting the efficiency of subsequent work.

[0003] In addition, for some special pile types, such as enlarged head and extruded support piles, the biggest problem is that the hole size cannot be detected at the enlarged head, which is the variable cross-section. Many times, the extrusion machine shows that the extrusion is complete, but in fact, whether the size at the variable cross-section is in place still needs to be checked. It is also necessary to check whether there is hole collapse at the variable cross-section after extrusion. Summary of the Invention

[0004] The purpose of this invention is to provide an ultrasonic variable cross-section pile foundation testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an ultrasonic variable cross-section pile foundation testing device, comprising a support frame:

[0006] A second support is fixedly mounted on the upper end of the first support, and an analyzer is mounted on the rear end of the second support. The second support and the analyzer are movably connected to each other. A groove is formed on the surface of the first support. A transmission line is held in the middle of the analyzer. A transmission line platform is fixedly mounted on the rear end of the first transmission line. The lower end of the transmission line passes through the inside of the groove. A second transmission line is fixedly mounted on the lower end of the analyzer. A third outer shell is fixedly mounted on the other end of the second transmission line.

[0007] A detection mechanism is installed at one end of a transmission line, and the transmission line is connected to the detection mechanism to collect data.

[0008] A propeller mechanism is provided at the upper end of the detection mechanism and is connected to the detection mechanism to prevent the detection mechanism from having difficulty rising.

[0009] The detection mechanism further includes a fixing block 1, which is fixedly installed at the lower end of the transmission line. A housing 1 is installed at the lower end of the fixing block. An engine is fixedly installed inside the housing 1. A housing 2 is fixedly installed at the lower end of the engine. A detection head is fixedly installed at the lower end of the housing 2.

[0010] Preferably, it further includes:

[0011] The upper surface of the outer shell three is provided with a groove two, the front end of the outer shell three is provided with a groove three, the groove three completely penetrates the front end of the outer shell three, a display screen is fixedly installed on the inner surface of the groove two, and a groove four is provided on the inner surface of the groove two, and the groove two, groove three and groove four are interconnected.

[0012] A cleaning mechanism is installed inside the outer casing three and located on the upper surface of the display screen to clean dust from the surface of the display screen.

[0013] The cleaning mechanism also includes a slider 1, which is located at the upper end of the groove 4 and the lower end of the slider is located inside the groove 4. The groove 4 and the outer shell 3 are movably connected to each other. A brush is provided on the upper surface of the display screen and is located at the lower end of the slider. The brush and the slider 1 are fixedly connected to each other. A handle is fixedly provided at the front end of the slider 1 and the rear end of the handle is located inside the groove 3.

[0014] Preferably, it further includes:

[0015] A bracket three is fixedly installed at the lower end of the bracket, the bracket three is interconnected with the groove one, the side of the bracket three is provided with a groove five, and the side of the bracket one is fixedly installed with a bracket six.

[0016] The extension mechanism further includes a slider two, which is disposed inside a groove five. The slider two is slidably connected to a bracket three. A bracket four is disposed at the front end of the slider two. The front end of the slider two is hinged to the lower end of the bracket four. A fixing block two is disposed at the upper end of the bracket four. The bracket four is hinged to the fixing block two. A bracket five is fixedly disposed at the front end of the fixing block two. The upper end of the bracket five is hinged to the front end of a bracket six.

[0017] Preferably, it further includes:

[0018] The propeller mechanism also includes a fixed block three, which is fixedly mounted on the upper end of the outer shell two. The front end of the fixed block three is provided with a fan blade, and the fixed block three and the fan blade are hinged to each other.

[0019] Preferably, it further includes:

[0020] A blocking block is fixedly installed at the lower end of the bracket three. The surface of the bracket three is smooth. The rear end of the slider two is located inside the groove five. The width of the rear end of the slider two is greater than the width of the groove five.

[0021] Preferably, the first outer shell and the second outer shell are movably connected to each other, the surfaces of the first outer shell and the second outer shell that rub against each other are smooth, and the width of the second outer shell is greater than the width of the first outer shell.

[0022] Preferably, the outer shell three is made of rubber on both sides, the rubber wraps around the outer side of the outer shell three, the grooves two, three and four are interconnected, and the surface of the slider one rubbing against the groove four is smooth.

[0023] Preferably, a display screen is fixedly installed inside the second groove, the surface of the display screen is slidably connected to the lower end of the brush, and the surface of the handle is provided with protrusions.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. This invention involves placing the detection mechanism through a groove into the measurement area, activating the quick-closing mechanism, rotating the engine, which in turn rotates the outer casing, which in turn rotates the detection head for data collection and calibration. After the data stabilizes, the transmission line platform is rotated, which moves the transmission line, which in turn moves the detection mechanism up and down for measurement. Compared with traditional devices, this invention overcomes the limitation of requiring pre-embedded acoustic logging tubes for detection and can directly detect the inclination of the pile after pile formation.

[0026] 2. This invention involves pushing a handle, which moves a slider, which in turn moves a brush. The brush rubs against the surface of the display screen to clean obstructions. Compared to traditional devices, this invention reduces the time required to clean the display screen and increases the efficiency of the device.

[0027] 3. This invention achieves rapid deployment by pushing slider two, which in turn moves bracket four. The movement of bracket four compresses and moves fixing block two, which in turn moves bracket five around bracket six. Compared with traditional devices, this device utilizes the pushing of slider two, which moves bracket three around bracket six, to quickly open the device, reducing preparation time and increasing working efficiency. At the same time, controlling the angle values ​​of bracket five and bracket three to be the same ensures the balance of the device. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the interior of the outer casing of the present invention;

[0031] Figure 4 This is a schematic diagram of the interior of the second outer casing of the present invention;

[0032] Figure 5 This is a schematic diagram of the interior of the outer casing of the present invention;

[0033] Figure 6 This is a side view of the slider of the present invention;

[0034] Figure 7 This is a schematic diagram of the internal structure of the support bracket three of the present invention;

[0035] Figure 8 This is a schematic diagram of the internal structure of slider two of the present invention.

[0036] In the diagram: 1. Support 1; 2. Support 2; 3. Analyzer; 4. Groove 1; 5. Transmission line 1; 6. Fixing block 1; 7. Housing 1; 8. Engine; 9. Housing 2; 10. Fixing block 3; 11. Fan blade; 12. Detection head; 13. Transmission line 2; 14. Housing 3; 15. Groove 2; 16. Groove 3; 17. Groove 4; 18. Slider 1; 19. Brush; 20. Handle; 21. Display screen; 22. Support 3; 23. Groove 5; 24. Slider 2; 25. Support 4; 26. Support 5; 27. Support 6; 28. Fixing block 2; 29. ​​Transmission line platform; 30. Blocking block. Detailed Implementation

[0037] 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.

[0038] like Figures 1 to 8 As shown, this embodiment of the invention provides an ultrasonic variable cross-section pile foundation testing device, including a support frame 1:

[0039] A bracket 2 is fixedly installed at the upper end of bracket 1, and an analyzer 3 is installed at the rear end of bracket 2. Bracket 2 and analyzer 3 are movably connected to each other. A groove 4 is opened on the surface of bracket 1. A transmission line 5 is held in the middle of analyzer 3. A transmission line platform 29 is fixedly installed at the rear end of transmission line 5. The lower end of transmission line 5 passes through the inside of groove 4. A transmission line 13 is fixedly installed at the lower end of analyzer 3. A housing 3 14 is fixedly installed at the other end of transmission line 13.

[0040] The detection mechanism is located at the lower end of transmission line 5, and transmission line 5 is connected to the detection mechanism to collect data.

[0041] The propeller mechanism is located at the upper end of the detection mechanism and is connected to the detection mechanism to prevent the detection mechanism from having difficulty rising.

[0042] The detection mechanism also includes a fixing block 6, which is fixedly installed at the lower end of the transmission line 5. A housing 7 is installed at the lower end of the fixing block 6. An engine 8 is fixedly installed inside the housing 7. A housing 9 is fixedly installed at the lower end of the engine 8. A detection head 12 is fixedly installed at the lower end of the housing 9.

[0043] When using the device, the operator places the detection mechanism through groove 4 into the measurement area, connects transmission line 5 to analyzer 3, and connects transmission line 5 to transmission line platform 29. The switch is turned on to start engine 8, which is fixedly connected to housing 7. The lower end of engine 8 is fixedly connected to housing 9. Rotating the lower end of engine 8 causes housing 9 to rotate. The lower end of housing 9 is fixedly connected to detection head 12. Rotating housing 9 causes detection head 12 to rotate, and detection head 12 begins data collection and calibration. After data acquisition stabilizes, transmission line platform 29 is rotated to control the up-and-down movement of the detection mechanism to collect all data, which is then transmitted to analyzer 3 via transmission line 5. Analyzer 3 is fixedly connected to transmission line 13, and transmission line 13 is fixedly connected to housing 14. Data from analyzer 3 is transmitted to housing 14 via transmission line 13 and recorded.

[0044] By placing the detection mechanism through the groove 4 into the measurement area, activating the quick-release mechanism, the engine 8 rotates, driving the outer casing 9 to rotate, which in turn drives the detection head 12 to rotate, thus collecting and calibrating data. After the data stabilizes, the transmission line platform 29 is rotated, causing the transmission line 5 to move, which in turn moves the detection mechanism up and down for measurement. Compared with traditional devices, this device overcomes the limitation of requiring pre-embedded acoustic tubes for detection by placing the detection mechanism into the measurement area, activating the engine 8, and rotating the engine 8 to rotate the detection head 12 to begin data collection and calibration. Rotating the transmission line platform 29 moves the detection mechanism up and down for measurement. It can also directly detect the inclination of the pile after it is formed.

[0045] This also includes;

[0046] The upper surface of the outer shell 14 is provided with a groove 2 15, the front end of the outer shell 14 is provided with a groove 3 16, the groove 3 16 completely penetrates the front end of the outer shell 14, the inner surface of the groove 2 15 is fixedly provided with a display screen 21, the inner surface of the groove 2 15 is provided with a groove 4 17, and the grooves 2 15, 3 16 and 4 17 are interconnected.

[0047] The cleaning mechanism is located inside the outer casing 314 and is situated on the upper surface of the display screen 21. It cleans the dust from the surface of the display screen 21.

[0048] The cleaning mechanism also includes a slider 18, which is located at the upper end of the groove 4 17 and the lower end of the slider 18 is located inside the groove 4 17. The groove 4 17 and the outer shell 3 14 are movably connected to each other. A brush 19 is provided on the upper surface of the display screen 21 and is located at the lower end of the slider 18. The brush 19 and the slider 18 are fixedly connected to each other. A handle 20 is fixedly provided at the front end of the slider 18 and the rear end of the handle 20 is located inside the groove 3 16.

[0049] When staff members were observing and recording data, they found obstructions or dust on the surface of the display screen 21. They pushed the handle 20, which was fixedly connected to the slider 18. The movement of the handle 20 caused the slider 18 to slide. The slider 18 was fixedly connected to the brush 19, and the slider 18 was movably connected to the outer casing 14. The slider 18 caused the brush 19 to move, and the brush 19 came into contact with the surface of the display screen 21. The brush 19 and the surface of the display screen 21 rubbed against each other to clean the dust from the surface of the display screen 21.

[0050] By pushing the handle 20, the handle 20 moves, causing the slider 18 to slide. The slider 18 then moves the brush 19, which rubs against the surface of the display screen 21 to clean the obstructions on the surface of the display screen 21. Compared with conventional devices, this device uses the push of the handle 20 to move the brush 19, which then rubs against the surface of the display screen 21 to clean the obstructions on the surface of the display screen 21, thus reducing the time required to clean the surface of the display screen 21 and increasing the efficiency of the device.

[0051] This also includes;

[0052] A bracket 3 22 is fixedly installed at the lower end of bracket 1. Bracket 3 22 is connected to groove 1 4. Groove 5 23 is opened on the side of bracket 3 22. Bracket 6 27 is fixedly installed on the side of bracket 1.

[0053] The extension mechanism also includes a slider 24, which is disposed inside the groove 5 23. The slider 24 is slidably connected to the bracket 3 22. The front end of the slider 24 is provided with a bracket 4 25, which is hinged to the lower end of the slider 24 and the upper end of the bracket 4 25. The upper end of the bracket 4 25 is provided with a fixing block 28, which is hinged to the bracket 4 25 and the fixing block 2 28. The front end of the fixing block 2 28 is fixedly provided with a bracket 5 26, which is hinged to the front end of the bracket 5 26.

[0054] Before testing, the staff needs to unfold the support frame and push slider 24. Slider 24 and support 3 22 are movably connected. Slider 24 and support 4 25 are hinged to each other. Sliding slider 24 moves support 4 25. Support 4 25 is hinged to fixed block 2 28. The movement of support 4 25 presses fixed block 2 28 to move. Fixed block 2 28 is fixedly connected to support 5 26. Support 6 27 at the upper end of support 5 26 is hinged to each other. Fixed block 2 28 drives support 5 26 to move around support 6 27 to quickly unfold the support frame.

[0055] By pushing slider 24, slider 24 slides and drives bracket 4 25 to move. The movement of bracket 4 25 compresses and moves fixing block 2 28. Fixing block 2 28 drives bracket 5 26 to move around bracket 6 27, achieving rapid deployment. Compared with traditional devices, this device utilizes the pushing of slider 24, which drives bracket 3 22 to move around bracket 6 27 for rapid opening, reducing preparation time and increasing working efficiency. At the same time, controlling the angle values ​​of bracket 5 26 and bracket 3 22 to be the same ensures the balance of the device.

[0056] This also includes;

[0057] The propeller mechanism also includes a fixing block 3 10, which is fixedly mounted on the upper end of the outer casing 2 9. A fan blade 11 is provided at the front end of the fixing block 3 10, and the fixing block 3 10 and the fan blade 11 are hinged to each other.

[0058] The engine 8 is fixedly connected to the outer casing 2 9. The engine 8 drives the outer casing 2 9 to rotate. The outer casing 2 9 is fixedly connected to the fixing block 3 10. The rotation of the outer casing 2 9 drives the fixing block 3 10 to rotate. The fixing block 3 10 is hinged to the fan blade 11. The rotation of the fixing block 3 10 drives the fan blade 11 to rotate. The fan blade 11 is subjected to centrifugal force and unfolds. The rotation of the fan blade 11 reduces the resistance of the cement slurry and ensures the safe ascent of the detection probe.

[0059] This also includes;

[0060] A blocking block 30 is fixedly installed at the lower end of bracket 3 22. The surface of bracket 3 22 is smooth. The rear end of slider 2 24 is located inside groove 5 23. The width of the rear end of slider 2 24 is greater than the width of groove 5 23.

[0061] A blocking block 30 is fixedly installed at the lower end of the bracket 3 22. The surface of the bracket 3 22 is smooth to reduce the friction on the surface of the bracket 3 22 and prevent the slider 2 24 from rushing out of the surface of the bracket 3 22 when sliding downward, which would render the extension mechanism unusable. The width of the rear end of the slider 2 24 is greater than the width of the groove 5 23 to fix the direction of movement of the slider 2 24 and prevent the rear end of the slider 2 24 from dislodging from the groove 5 23, which would cause the extension mechanism to jam and affect the working efficiency of the device.

[0062] Among them, outer shell 7 and outer shell 9 are movably connected to each other, the surfaces of outer shell 7 and outer shell 9 that rub against each other are smooth, and the width of outer shell 9 is greater than the width of outer shell 7.

[0063] The outer shell 7 and the outer shell 9 are movably connected to each other. When the outer shell 9 rotates, the outer shell 9 and the outer shell 7 will not separate from each other, so that the detection mechanism can no longer be used. The surfaces of the outer shell 7 and the outer shell 9 that rub against each other are smooth, which reduces the friction between the outer shell 7 and the outer shell 9 and increases the working efficiency during rotation. The width of the outer shell 9 is greater than the width of the outer shell 7 to reduce the resistance of the detection mechanism rising and ensure the integrity of the detection mechanism.

[0064] Among them, the outer shell 14 is made of rubber on both sides, and the rubber wraps around the outer side of the outer shell 14. The grooves 15, 16, and 17 are interconnected, and the surface of the slider 18 rubbing against the groove 17 is smooth.

[0065] The outer casing 14 is made of rubber on both sides to increase the friction of its surface, preventing damage to the device from slipping out of the hand. It also acts as a buffer against some impact to protect the device. The grooves 15, 16, and 17 are interconnected, and the slider 18 will not get stuck when sliding. The surfaces of the slider 18 and the groove 17 are smooth, reducing the friction of the slider 18 when sliding and increasing the working efficiency of the mechanism.

[0066] The groove 25 has a display screen 21 fixedly installed inside. The surface of the display screen 21 is slidably connected to the lower end of the brush 19. The handle 20 has a protrusion on its surface.

[0067] A display screen 21 is fixedly installed inside the groove 2 15. The display screen 21 displays and records the data tested by the detection mechanism, allowing for better observation of the situation inside the test area. The surface of the display screen 21 is slidably connected to the lower end of the brush 19 to ensure the normal operation of the cleaning mechanism and to clear any obstructions on the surface of the display screen 21. The handle 20 has protrusions on its surface to increase the friction of the handle 20 and increase the efficiency of the device.

[0068] Working principle and usage process:

[0069] When using the device, the operator places the detection mechanism through groove 4 into the measurement area, connects transmission line 5 to analyzer 3, and connects transmission line 5 to transmission line platform 29. The switch is turned on to start engine 8, which is fixedly connected to housing 7. The lower end of engine 8 is fixedly connected to housing 9. Rotating the lower end of engine 8 causes housing 9 to rotate. The lower end of housing 9 is fixedly connected to detection head 12. Rotating housing 9 causes detection head 12 to rotate, and detection head 12 begins data collection and calibration. After data acquisition stabilizes, transmission line platform 29 is rotated to control the up-and-down movement of the detection mechanism to collect all data, which is then transmitted to analyzer 3 via transmission line 5. Analyzer 3 is fixedly connected to transmission line 13, and transmission line 13 is fixedly connected to housing 14. Data from analyzer 3 is transmitted to housing 14 via transmission line 13 and recorded.

[0070] When staff members were observing and recording data, they found obstructions or dust on the surface of the display screen 21. They pushed the handle 20, which was fixedly connected to the slider 18. The movement of the handle 20 caused the slider 18 to slide. The slider 18 was fixedly connected to the brush 19, and the slider 18 was movably connected to the outer casing 14. The slider 18 caused the brush 19 to move, and the brush 19 came into contact with the surface of the display screen 21. The brush 19 and the surface of the display screen 21 rubbed against each other to clean the dust from the surface of the display screen 21.

[0071] Before testing, the staff needs to unfold the support frame and push slider 24. Slider 24 and support 3 22 are movably connected. Slider 24 and support 4 25 are hinged to each other. Sliding slider 24 moves support 4 25. Support 4 25 is hinged to fixed block 2 28. The movement of support 4 25 presses fixed block 2 28 to move. Fixed block 2 28 is fixedly connected to support 5 26. Support 6 27 at the upper end of support 5 26 is hinged to each other. Fixed block 2 28 drives support 5 26 to move around support 6 27 to quickly unfold the support frame.

[0072] 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.

[0073] 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. An ultrasonic variable cross-section pile foundation testing device, comprising a support frame (1), characterized in that: The upper end of the first bracket (1) is fixedly provided with the second bracket (2), and the rear end of the second bracket (2) is provided with the analyzer (3). The second bracket (2) and the analyzer (3) are movably connected to each other. The support (1) has a groove (4) on its surface. The analyzer (3) has a transmission line (5) in the middle. The transmission line (5) has a transmission line platform (29) fixedly installed at its rear end. The lower end of the transmission line (5) passes through the inside of the groove (4). The lower end of the analyzer (3) has a transmission line (13) fixedly installed. The other end of the transmission line (13) has a housing (14) fixedly installed. The detection mechanism is located at the lower end of the transmission line (5), and the transmission line (5) is connected to the detection mechanism to collect data. A propeller mechanism is provided at the upper end of the detection mechanism and is connected to the detection mechanism to prevent the detection mechanism from having difficulty rising. The detection mechanism also includes a fixing block (6), which is fixedly installed at the lower end of the transmission line (5). A housing (7) is installed at the lower end of the fixing block (6). An engine (8) is fixedly installed inside the housing (7). A second housing (9) is fixedly installed at the lower end of the engine (8). A detection head (12) is fixedly installed at the lower end of the second housing (9). The upper surface of the outer shell three (14) is provided with a groove two (15), the front end of the outer shell three (14) is provided with a groove three (16), the groove three (16) completely penetrates the front end of the outer shell three (14), a display screen (21) is fixedly installed on the inner surface of the groove two (15), and a groove four (17) is provided on the inner surface of the groove two (15). The groove two (15), groove three (16) and groove four (17) are interconnected. A cleaning mechanism is provided inside the outer casing (14) and located on the upper surface of the display screen (21) to clean the dust on the surface of the display screen (21); The cleaning mechanism also includes a slider (18), which is located at the upper end of the groove (17) and the lower end of the slider (18) is located inside the groove (17). The groove (17) and the outer shell (14) are movably connected to each other. A brush (19) is provided on the upper surface of the display screen (21). The brush (19) is located at the lower end of the slider (18) and the brush (19) is fixedly connected to the slider (18). A handle (20) is fixedly provided at the front end of the slider (18) and the rear end of the handle (20) is located inside the groove (16). The lower end of the bracket 1 (1) is fixedly provided with bracket 3 (22), the bracket 3 (22) is connected to the groove 1 (4), the side of the bracket 3 (22) is provided with groove 5 (23), and the side of the bracket 1 (1) is fixedly provided with bracket 6 (27). The extension mechanism further includes a second slider (24), which is disposed inside the fifth groove (23). The second slider (24) is slidably connected to the third bracket (22). The front end of the second slider (24) is provided with a fourth bracket (25). The front end of the second slider (24) is hinged to the lower end of the fourth bracket (25). The upper end of the fourth bracket (25) is provided with a second fixing block (28). The fourth bracket (25) is hinged to the second fixing block (28). The front end of the second fixing block (28) is fixedly provided with a fifth bracket (26). The upper end of the fifth bracket (26) is hinged to the front end of the sixth bracket (27).

2. The ultrasonic variable cross-section pile forming detection device according to claim 1, characterized in that: It also includes: The propeller mechanism also includes a fixed block three (10), which is fixedly installed on the upper end of the outer shell two (9). The front end of the fixed block three (10) is provided with a fan blade (11), and the fixed block three (10) and the fan blade (11) are hinged to each other.

3. The ultrasonic variable cross-section pile forming detection device according to claim 1, characterized in that: It also includes: The lower end of the bracket three (22) is fixedly provided with a blocking block (30). The surface of the bracket three (22) is smooth. The rear end of the slider two (24) is located inside the groove five (23). The width of the rear end of the slider two (24) is greater than the width of the groove five (23).

4. The ultrasonic variable cross-section pile forming detection device according to claim 1, characterized in that: The outer shell 1 (7) and the outer shell 2 (9) are movably connected to each other. The surfaces of the outer shell 1 (7) and the outer shell 2 (9) that rub against each other are smooth. The width of the outer shell 2 (9) is greater than the width of the outer shell 1 (7).

5. The ultrasonic variable cross-section pile forming detection device according to claim 1, characterized in that: The outer shell three (14) is made of rubber on both sides. The rubber wraps around the outer shell three (14). The groove two (15), groove three (16) and groove four (17) are interconnected. The surfaces of the slider one (18) and groove four (17) are smooth when they rub against each other.

6. The ultrasonic variable cross-section pile forming detection device according to claim 1, characterized in that: A display screen (21) is fixedly installed inside the groove (15). The surface of the display screen (21) is slidably connected to the lower end of the brush (19). The surface of the handle (20) is provided with protrusions.

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