A device for measuring the height of the top of a spiral steel pile

By designing a helical steel pile top elevation measuring device that includes a mobile flatbed truck, a vertical box, and an ultrasonic rangefinder, the problems of large errors and low accuracy of traditional measurement methods are solved. This device achieves efficient and accurate pile top elevation measurement, adapts to different construction scenarios, and improves the reliability and efficiency of measurement.

CN224569275UActive Publication Date: 2026-07-28CHINA RAILWAY 16TH BUREAU GRP 5TH ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY 16TH BUREAU GRP 5TH ENG
Filing Date
2025-08-29
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Traditional methods for measuring the top elevation of spiral steel piles rely on manual operation, resulting in large errors and low accuracy. Existing automated equipment lacks flexible moving structures and the height adjustment of measuring components is unstable, making it difficult to meet the needs of efficient and accurate construction.

Method used

A device for measuring the top elevation of spiral steel piles was designed, comprising a mobile cart, a vertical box, an ultrasonic rangefinder, and an adjustment mechanism. It is equipped with a flexible moving structure and a stable height adjustment system. The ultrasonic rangefinder accurately measures the pile top height, and the height is adjusted using a transmission belt and gear belt. The position of the measuring components is fixed by a locking plate and a screw structure.

Benefits of technology

It enables efficient and accurate pile top elevation measurement, adapts to different construction scenarios, reduces human error, improves the reliability and efficiency of measurement, and meets the needs of efficient and accurate construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a spiral steel pile top elevation measuring device relates to spiral steel pile measuring technical field, including moving plate car, and the left side fixed connection of moving plate car top has the vertical box, and the left side of vertical box is provided with spiral steel pile body, and the left side of vertical box is provided with ultrasonic range finder, and the bottom fixed connection of ultrasonic range finder has the lifting plate, and the right side fixed connection of lifting plate has the sliding block, and the right side extension of sliding block reaches the inside of vertical box, and the inside fixed connection of sliding block has the transmission belt. The utility model has the beneficial effects that: be equipped with flexible movement structure, can with the quick adjustment device of steel pile position place position, adapt the distribution demand of steel pile under different construction scene, and the height of measuring part is adjusted stable, and the efficiency is high, can be flexibly adapted according to the actual height of steel pile, satisfies the demand of various measurement, and the position of component is stable in the measuring process, and it is not easy to shift, effectively guarantees the reliability of measurement result, can satisfy the construction demand of efficient and accurate.
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Description

Technical Field

[0001] This utility model relates to the field of spiral steel pile measurement technology, and in particular to a device for measuring the top elevation of spiral steel piles. Background Technology

[0002] In the construction of spiral steel piles, the measurement of the pile top elevation is directly related to the quality of the project. Traditional measurement relies on manual operation of level instruments and measuring tapes, which is easily affected by personnel experience and site environment, resulting in large errors and low accuracy. Moreover, the tools need to be repeatedly adjusted for steel piles of different heights, which is inefficient. Existing automated measurement equipment also has some defects: it lacks a flexible moving structure, making it difficult to quickly adjust to the position of the steel pile; the height adjustment of the measuring components is unstable, inefficient, and lacks adaptability; the components are prone to displacement during measurement, which further affects the reliability of the results and cannot meet the needs of efficient and accurate construction. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A device for measuring the top elevation of a spiral steel pile includes a mobile cart. A vertical box is fixedly connected to the left side of the top of the mobile cart. The spiral steel pile body is disposed on the left side of the vertical box. An ultrasonic rangefinder is disposed on the left side of the vertical box. A lifting plate is fixedly connected to the bottom of the ultrasonic rangefinder. A sliding block is fixedly connected to the right side of the lifting plate. The right side of the sliding block extends into the interior of the vertical box. A transmission belt is fixedly connected inside the sliding block. Pulleys are disposed at the top and bottom of the transmission belt. The pulleys are movably connected to the top and bottom of the interior of the vertical box. An adjustment mechanism is fixedly connected to the surface of the vertical box.

[0005] The adjustment mechanism includes a motor, which is fixedly connected to the vertical top. The output end of the motor and the top of the front side of the pulley are both fixedly connected to gears, and the surface of the gears is fitted with toothed belts.

[0006] As a preferred embodiment of the spiral steel pile top elevation measuring device of this utility model, a fixed locking plate is provided at the bottom inside the transmission belt. The front and rear sides of the fixed locking plate are fixedly connected to the inner wall of the vertical box. A box body is fixedly connected to the bottom right side of the vertical box. A movable locking plate is provided on the left side inside the box body. The surfaces of the movable locking plate and the fixed locking plate are in contact with the surface of the transmission belt.

[0007] As a preferred embodiment of the spiral steel pile top elevation measuring device of this utility model, wherein: a first inclined block is fixedly connected to the right side of the movable locking plate, a second inclined block is provided to the right side of the first inclined block, a screw rod is internally threaded to the second inclined block, and the top of the screw rod extends to the top of the box.

[0008] In a preferred embodiment of the spiral steel pile top elevation measuring device of this utility model, a limiting ring is fixedly connected to the surface of the screw rod, and the top of the limiting ring contacts the top of the inner wall of the box.

[0009] In a preferred embodiment of the spiral steel pile top elevation measuring device of this utility model, a handwheel is fixedly connected to the top of the lead screw, and the handwheel is located at the top of the housing.

[0010] In a preferred embodiment of the spiral steel pile top elevation measuring device of this utility model, the right side of the inclined block two is slidably connected to a guide rail, and the right side of the guide rail is fixedly connected to the right side of the inner wall of the box.

[0011] As a preferred embodiment of the spiral steel pile top elevation measuring device of this utility model, the top and bottom of the left side of the fixing locking plate are fixedly connected with reinforcing bars, and the front and rear sides of the reinforcing bars are fixedly connected to the inner wall of the vertical box.

[0012] In a preferred embodiment of the spiral steel pile top elevation measuring device of this utility model, a vertical rod is fixedly connected to the right side of the top of the mobile cart, and a counterweight plate is sleeved on the surface of the vertical rod.

[0013] In a preferred embodiment of the spiral steel pile top elevation measuring device of this utility model, a protective cover is provided on the outside of the motor, and the bottom of the protective cover is fixedly connected to the top of the vertical box.

[0014] In a preferred embodiment of the spiral steel pile top elevation measuring device of this utility model, the protective cover has a ventilation groove on its surface, and the ventilation groove is located on the top of the motor.

[0015] The advantages of this utility model are as follows: it is equipped with a flexible movable structure, which can quickly adjust the placement of the device according to the position of the steel pile, adapting to the distribution requirements of steel piles in different construction scenarios; the height adjustment of the measuring component is stable and efficient, and can be flexibly adapted according to the actual height of the steel pile to meet diverse measurement needs; the component position is stable during the measurement process and is not easy to shift, effectively ensuring the reliability of the measurement results and meeting the needs of efficient and accurate construction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a structural diagram of the device for measuring the elevation of the top of spiral steel piles.

[0017] Figure 2 This is a three-dimensional structural diagram of the counterweight plate of the spiral steel pile top elevation measuring device.

[0018] Figure 3 This is a three-dimensional cross-sectional view of the vertical box of the spiral steel pile top elevation measuring device.

[0019] Figure 4 Device for measuring the top elevation of spiral steel piles Figure 3 Enlarged structural diagram at point A in the middle.

[0020] Figure 5 This is a three-dimensional structural diagram of the inclined block two of the spiral steel pile top elevation measuring device.

[0021] The following are the labeling elements in the diagram: 1. Mobile trolley; 2. Vertical box; 3. Spiral steel pile body; 4. Ultrasonic rangefinder; 5. Lifting plate; 6. Sliding block; 7. Transmission belt; 8. Pulley; 9. Adjustment mechanism; 91. Motor; 92. Gear; 93. Toothed belt; 94. Fixed locking plate; 95. Box body; 96. Movable locking plate; 97. Inclined block one; 98. Inclined block two; 99. Lead screw; 910. Limiting ring; 911. Handwheel; 912. Guide rail; 913. Reinforcing rib; 10. Vertical rod; 11. Counterweight plate; 12. Protective cover; 13. Ventilation groove. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example 1: Reference Figures 1-5 This is the first embodiment of the present invention, which provides a device for measuring the top elevation of a spiral steel pile. The device includes a mobile cart 1, a vertical box 2, a lifting plate 5, and an ultrasonic rangefinder 4. Using the ultrasonic rangefinder 4 as the core measuring component, it can accurately measure the distance to the top of the spiral steel pile body 3, providing accurate data support for pile top elevation calculation. Compared with traditional manual measurement methods, this reduces human error and improves measurement accuracy. The combination of the lifting plate 5 and the sliding block 6 enables adjustable height of the ultrasonic rangefinder 4. The measuring height of the ultrasonic rangefinder 4 can be flexibly adjusted according to the actual height of the spiral steel pile body 3 and measurement requirements, expanding the measurement range of the device and making it suitable for measuring the top elevation of spiral steel piles of different heights.

[0026] A vertical box 2 is fixedly connected to the top left side of the mobile cart 1. A spiral steel pile body 3 is set on the left side of the vertical box 2. An ultrasonic rangefinder 4 is set on the left side of the vertical box 2. A lifting plate 5 is fixedly connected to the bottom of the ultrasonic rangefinder 4. A sliding block 6 is fixedly connected to the right side of the lifting plate 5. The right side of the sliding block 6 extends into the interior of the vertical box 2. A transmission belt 7 is fixedly connected inside the sliding block 6. Pulleys 8 are set at the top and bottom of the transmission belt 7. The pulleys 8 are movably connected to the top and bottom of the interior of the vertical box 2. An adjustment mechanism 9 is fixedly connected to the surface of the vertical box 2.

[0027] The mobile cart 1 allows the entire measuring device to move flexibly without fixed installation. Its position can be adjusted at any time according to the actual location of the spiral steel pile body 3, greatly improving its applicability in different construction scenarios, reducing handling and installation difficulties, and saving construction preparation time. The vertical box 2 provides a stable mounting platform for subsequent components such as the ultrasonic rangefinder 4, lifting plate 5, and sliding block 6, ensuring the neatness and stability of each component's installation and avoiding structural loosening caused by scattered component installation. The ultrasonic rangefinder 4 uses a common solution on the market, which is as follows: The ultrasonic rangefinder 4 can be divided into four core modules, each with interconnected functions to jointly complete the ranging process: The ultrasonic transducer is the device's "transmitter," its core function being to achieve "bidirectional conversion of electrical energy and acoustic energy": On one hand, after receiving the electrical signal from the control module, it generates ultrasonic waves (frequency usually above 20kHz, imperceptible to the human ear) through the vibration of materials such as piezoelectric ceramics and emits them towards the target object; on the other hand, when the ultrasonic waves encounter the target object and are reflected back, the transducer converts the acoustic energy back into a weak electrical signal and transmits it to the receiving module. The control module, essentially the "brain" of the device, is typically composed of a microcontroller (such as a 51 microcontroller or STM32) or an application-specific integrated circuit (ASIC). Its main functions include: sending a "trigger signal" to the transmitting module to control the timing and frequency of ultrasonic wave transmission; and simultaneously receiving the "echo electrical signal" from the receiving module and recording the time difference (i.e., "time of flight") between "echo emission" and "echo reception." The transmitting module acts as a "signal amplifier," connecting the control module and the transducer. Because the electrical signal output from the control module is relatively weak and cannot directly drive the transducer to generate sufficiently strong ultrasonic waves, the transmitting module amplifies the electrical signal using a power amplifier circuit (such as a transistor amplifier circuit) to ensure that the transducer can emit stable and effective ultrasonic waves. The receiving and signal processing module is responsible for "capturing the echo and purifying the signal": the echo electrical signal returned by the transducer is very weak and may contain environmental noise (such as other acoustic interference). The receiving module first amplifies the signal using an amplifier circuit, then filters out noise using a filter circuit, and finally transmits the purified "effective echo signal" to the control module, triggering the control module to record the time difference.

[0028] The adjustment mechanism 9 includes a motor 91, which is fixedly connected to the vertical top. The output end of the motor 91 and the top of the front side of the pulley 8 are both fixedly connected to a gear 92, and a toothed belt 93 is sleeved on the surface of the gear 92.

[0029] The transmission structure formed by the transmission belt 7 and pulley 8 provides a stable power transmission path for the lifting and lowering of the sliding block 6, ensuring that the sliding block 6 moves smoothly and steadily within the vertical box 2, avoiding jamming and guaranteeing the reliability of the height adjustment of the ultrasonic rangefinder 4. At the same time, this transmission structure has high transmission efficiency and can quickly respond to adjustment operations, improving the efficiency of the height adjustment of the ultrasonic rangefinder 4 and reducing adjustment waiting time.

[0030] Example 2: Reference Figures 1-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] Specifically, a fixed locking plate 94 is provided at the bottom inside the transmission belt 7. The front and rear sides of the fixed locking plate 94 are fixedly connected to the inner wall of the vertical box 2. A box body 95 is fixedly connected to the bottom right side of the vertical box 2. A movable locking plate 96 is provided on the left side inside the box body 95. The surfaces of the movable locking plate 96 and the fixed locking plate 94 are in contact with the surface of the transmission belt 7.

[0032] By setting the fixed locking plate 94 and the movable locking plate 96, the transmission belt 7 can be clamped and locked from different positions. When the ultrasonic rangefinder 4 is adjusted to a suitable measuring height, the fixed locking plate 94 and the movable locking plate 96 work together to fix the transmission belt 7, preventing the transmission belt 7 from shifting due to external force or its own weight during the measurement process. This ensures the stability of the positions of the sliding block 6, the lifting plate 5, and the ultrasonic rangefinder 4, avoids measurement errors caused by component displacement, and improves the reliability of the measurement process and the accuracy of the measurement results. The housing 95 provides installation and protection space for the movable locking plate 96, preventing the movable locking plate 96 from being directly exposed to the outside environment and ensuring the neatness of the overall structure of the device.

[0033] Specifically, a first inclined block 97 is fixedly connected to the right side of the movable locking plate 96, a second inclined block 98 is provided to the right side of the first inclined block 97, and a screw rod 99 is threadedly connected to the inside of the second inclined block 98, with the top of the screw rod 99 extending to the top of the box body 95.

[0034] By setting up inclined block 1 97 and inclined block 2 98, inclined block 2 98 can be driven to move up and down. Inclined block 2 98 contacts the inclined surface of inclined block 1 97, thereby pushing inclined block 1 97 to move left and right, realizing the left and right position adjustment of movable locking plate 96, thereby adjusting the clamping force of movable locking plate 96 and fixed locking plate 94 on transmission belt 7. This adjustment method has a simple structure and is easy to operate. The operator only needs to rotate screw 99 to complete the locking or unlocking operation. There is no need for complicated operation steps, which reduces the difficulty of operation. At the same time, it is also easy to accurately control the clamping force according to the actual situation of transmission belt 7, avoiding the transmission belt 7 from shifting due to excessively loose clamping or damaging the transmission belt 7 due to excessively tight clamping.

[0035] Specifically, a limiting ring 910 is fixedly connected to the surface of the lead screw 99, and the top of the limiting ring 910 contacts the top of the inner wall of the box 95.

[0036] By setting the limit ring 910, the lead screw 99 is prevented from disengaging from the housing 95 due to excessive rotation when driving the inclined block 98 to move. This ensures the stability of the engagement between the lead screw 99 and the inclined block 98, avoids the problem of the adjustment function of the movable locking plate 96 failing due to the lead screw 99 disengaging, improves the overall reliability and safety of the device, and also provides the operator with a clear operating boundary, making it easier for the operator to judge the adjustment limit position of the lead screw 99.

[0037] Specifically, a handwheel 911 is fixedly connected to the top of the lead screw 99, and the handwheel 911 is located on the top of the housing 95.

[0038] By setting the handwheel 911, the force application radius is increased, and the force required to rotate the lead screw 99 is reduced, allowing the operator to complete the rotation operation of the lead screw 99 more easily and effortlessly, thereby realizing the position adjustment of the movable locking plate 96, improving the convenience and comfort of operation, especially in scenarios where the lead screw 99 needs to be frequently adjusted, effectively reducing the operator's fatigue.

[0039] Specifically, the right side of the inclined block 98 is slidably connected to a guide rail 912, and the right side of the guide rail 912 is fixedly connected to the right side of the inner wall of the box 95.

[0040] By setting the guide rail 912, it is ensured that the second inclined block 98 always moves along a fixed direction during the up and down movement, avoiding improper matching between the second inclined block 98 and the first inclined block 97 due to deviation in the movement direction, which would affect the adjustment effect of the movable locking plate 96. At the same time, the guide rail 912 can also reduce the frictional resistance during the movement of the second inclined block 98, ensuring the smooth movement of the second inclined block 98 and improving the efficiency and reliability of the adjustment of the movable locking plate 96.

[0041] Example 3: Reference Figures 1-5 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0042] Specifically, the top and bottom of the left side of the locking plate 94 are fixedly connected with reinforcing ribs 913, and the front and rear sides of the reinforcing ribs 913 are fixedly connected to the inner wall of the vertical box 2.

[0043] By setting the reinforcing rib 913, the locking plate is prevented from deforming or separating from the inner wall of the vertical box 2 due to excessive force when clamping and locking the transmission belt 7. This ensures the structural stability of the locking plate and the reliability of the locking function, extends the service life of the locking plate, and thus improves the durability of the entire device.

[0044] Specifically, a vertical rod 10 is fixedly connected to the right side of the top of the mobile cart 1, and a counterweight plate 11 is fitted on the surface of the vertical rod 10.

[0045] By setting the vertical rod 10, an appropriate number of counterweight plates 11 can be fitted on the vertical rod 10 according to the weight distribution of each component on the top of the mobile cart 1, so that the mobile cart 1 can maintain a balanced state and avoid tilting or tipping over due to the shift of the center of gravity of the device. This ensures the stability and safety of the device during operation, and its effect is more significant, especially in outdoor construction scenarios with strong winds or uneven ground.

[0046] Specifically, a protective cover 12 is provided on the outside of the motor 91, and the bottom of the protective cover 12 is fixedly connected to the top of the vertical box 2.

[0047] The protective cover 12 prevents the internal components of the motor 91 from being damaged by contamination or corrosion. It also prevents the motor 91 from being impacted by external forces during operation, ensuring the normal operation of the motor 91, extending the service life of the motor 91, and reducing the maintenance cost of the device.

[0048] Specifically, the surface of the protective cover 12 is provided with a ventilation groove 13, which is located on the top of the motor 91.

[0049] By setting the ventilation groove 13, the operating temperature of the motor 91 is effectively reduced, avoiding overheating damage or performance degradation of the motor 91 due to excessive temperature, ensuring that the motor 91 is always within the normal operating temperature range, and improving the stability and reliability of the motor 91.

[0050] In use, the mobile cart 1 is moved to a suitable position around the spiral steel pile body 3. The ultrasonic rangefinder 4 is activated, and it detects the distance to the spiral steel pile body 3. The motor 91 is started, which drives the gear 92 and the toothed belt 93 to rotate. The gear 92 drives the pulley 8 and the transmission belt 7 to rotate. The transmission belt 7 drives the sliding block 6 and the lifting plate 5 to move up and down. The lifting plate 5 drives the ultrasonic rangefinder 4 to adjust its position up and down. During the adjustment process, the ultrasonic rangefinder 4 detects the distance to the spiral steel pile body 3 in real time. When the ultrasonic rangefinder 4 moves the spiral steel pile body 3 to a suitable position, it will move the distance to the spiral steel pile body 3. When the pile body 3 detects the required information, it shuts off the motor 91. When it is necessary to lock the ultrasonic rangefinder 4 in the current position, it rotates the handwheel 911. The handwheel 911 drives the lead screw 99 to rotate, and the lead screw 99 drives the second inclined block 98 to move downward. The second inclined block 98 pushes the first inclined block 97 to move to the left. The first inclined block 97 drives the movable locking plate 96 to move to the left. When the movable locking plate 96 contacts the transmission belt 7, the transmission belt 7 can be fixed by the cooperation of the fixed locking plate 94 and the movable locking plate 96. The transmission belt 7 cannot rotate or loosen, and the ultrasonic rangefinder 4 can be positioned in the required position.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for measuring the top elevation of a spiral steel pile, comprising a mobile cart (1), characterized in that: A vertical box (2) is fixedly connected to the left side of the top of the mobile cart (1). A spiral steel pile body (3) is set on the left side of the vertical box (2). An ultrasonic rangefinder (4) is set on the left side of the vertical box (2). A lifting plate (5) is fixedly connected to the bottom of the ultrasonic rangefinder (4). A sliding block (6) is fixedly connected to the right side of the lifting plate (5). The right side of the sliding block (6) extends into the interior of the vertical box (2). A transmission belt (7) is fixedly connected inside the sliding block (6). A pulley (8) is set at the top and bottom of the transmission belt (7). The pulley (8) is movably connected to the top and bottom of the interior of the vertical box (2). An adjustment mechanism (9) is fixedly connected to the surface of the vertical box (2). The adjustment mechanism (9) includes a motor (91), which is fixedly connected to the top of the vertical structure. The output end of the motor (91) and the top of the front side of the pulley (8) are both fixedly connected to a gear (92), and a toothed belt (93) is sleeved on the surface of the gear (92).

2. The spiral steel pile top elevation measuring device as described in claim 1, characterized in that: A fixed locking plate (94) is provided at the bottom inside the transmission belt (7). The front and rear sides of the fixed locking plate (94) are fixedly connected to the inner wall of the vertical box (2). A box body (95) is fixedly connected to the bottom right side of the vertical box (2). A movable locking plate (96) is provided on the left side inside the box body (95). The surfaces of the movable locking plate (96) and the fixed locking plate (94) are in contact with the surface of the transmission belt (7).

3. The spiral steel pile top elevation measuring device as described in claim 2, characterized in that: The right side of the movable locking plate (96) is fixedly connected to a first inclined block (97), and the right side of the first inclined block (97) is provided with a second inclined block (98). The inside of the second inclined block (98) is connected to a lead screw (99), and the top of the lead screw (99) extends to the top of the box body (95).

4. The spiral steel pile top elevation measuring device as described in claim 3, characterized in that: A limiting ring (910) is fixedly connected to the surface of the lead screw (99), and the top of the limiting ring (910) contacts the top of the inner wall of the box (95).

5. The spiral steel pile top elevation measuring device as described in claim 3, characterized in that: A handwheel (911) is fixedly connected to the top of the lead screw (99), and the handwheel (911) is located on the top of the box (95).

6. The spiral steel pile top elevation measuring device as described in claim 3, characterized in that: The right side of the inclined block 2 (98) is slidably connected to a guide rail (912), and the right side of the guide rail (912) is fixedly connected to the right side of the inner wall of the box (95).

7. The spiral steel pile top elevation measuring device as described in claim 2, characterized in that: The top and bottom of the left side of the fixed locking plate (94) are fixedly connected with reinforcing ribs (913), and the front and rear sides of the reinforcing ribs (913) are fixedly connected to the inner wall of the vertical box (2).

8. The spiral steel pile top elevation measuring device as described in claim 1, characterized in that: A vertical rod (10) is fixedly connected to the right side of the top of the mobile cart (1), and a counterweight plate (11) is fitted on the surface of the vertical rod (10).

9. The spiral steel pile top elevation measuring device as described in claim 1, characterized in that: The motor (91) is provided with a protective cover (12) on its outside, and the bottom of the protective cover (12) is fixedly connected to the top of the vertical box (2).

10. The spiral steel pile top elevation measuring device as described in claim 9, characterized in that: The protective cover (12) has a ventilation groove (13) on its surface, and the ventilation groove (13) is located on the top of the motor (91).