Mountain abrupt slope tubular pile construction perpendicularity monitoring device

Abstract

The invention relates to the technical field of photovoltaic pipe pile construction, and discloses a mountain abrupt slope pipe pile construction perpendicularity monitoring device which comprises a laser distance measuring sensor, a pitching assembly and a rotating assembly. The pitching assembly comprises a rotary disc, a pitching frame and a pitching sensor, a rotary motor and a worm and gear mechanism are arranged on the rotary disc, the rotary motor can drive the laser distance measuring sensor to do pitching motion on the rotary disc through the worm and gear mechanism when rotating, and the pitching sensor can accurately monitor the pitching angle of the laser distance measuring sensor; the rotary assembly comprises a bearing disc, a rotary motor, a reciprocating cylindrical cam and a rack are arranged on the bearing disc, a gear is arranged on the rotary disc, and the rotary motor can drive the rotary disc to swing at the uniform angular speed in a reciprocating mode when rotating at the constant speed. In the pile sinking operation process, the mountain abrupt slope pipe pile construction perpendicularity monitoring device can automatically monitor the inclination degree of a pipe pile on line, and when the pipe pile inclines, automatic scanning can be conducted, and accurate inclination data can be simulated through simulation.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic pipe pile construction, in particular to a verticality monitoring device for mountain steep slope pipe pile construction. Background Art

[0002] In the construction of photovoltaic projects, pipe piles are usually arranged at the construction site, and then photovoltaic panels are installed on the pipe piles through brackets. During the construction of photovoltaic pipe piles, the verticality of the pipe piles must be strictly controlled, and the verticality deviation must not exceed 0.5%.

[0003] There are large areas of remote mountainous areas in my country, which are sparsely populated and have sufficient sunshine conditions, so photovoltaic projects are often planned in these areas. When constructing pipe piles in these mountainous areas, since the construction floor is an inclined slope, there is an inclination between the vertically penetrated pipe piles and the floor, which makes it very easy for the pipe piles to tilt during the pile sinking operation. It is particularly important to monitor the verticality during the construction of pipe piles on steep mountain slopes.

[0004] At present, for the verticality monitoring of pipe pile construction, two ink lines are first popped out on the outer wall of the pipe pile (the two ink lines are parallel to the axis of the pipe pile, and the two ink lines and the axis of the pipe pile constitute two reference planes, which are perpendicular to each other) as the reference line, and a measuring station is set up in the opposite direction of the two ink lines away from the axis of the pipe pile, and the theodolite is installed at the measuring station for centering and leveling; when the pipe pile is erected and driven into the pile hole, the pipe pile reference line is observed through the theodolite, and the pipe pile is centered and straightened; during the pile sinking operation, professional personnel are arranged to continuously observe the pipe pile reference line through the theodolite, so that timely adjustments can be made when the pipe pile is tilted to ensure that it meets the verticality requirements of the pipe pile construction. This monitoring method has the following main defects: First, there are inevitably errors in the setting of the baseline and station benchmarks, and the results of observations based on them are inevitably biased, and the monitoring results are not accurate enough; Second, when constructing on steep slopes in mountains, the tripod used to install the theodolite is supported on the slope, and its installation and leveling process is relatively complicated; and in the actual construction period, it is often necessary to install multiple pipe piles in sequence. According to this method, before the construction of each pipe pile, the theodolite needs to be placed and leveled at the new measuring station, and its monitoring preparation work is relatively cumbersome; Third, during the process of pipe pile centering, straightening and pile sinking, two professionals need to be arranged to observe through two theodolites respectively, which requires a lot of manpower and has high professional requirements for the observers. This two-point observation method can only roughly determine the tilt direction of the pipe pile. After the pipe pile tilts, it is necessary to guide the straightening operation based on the experience of the observers. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a verticality monitoring device for mountain steep slope pipe pile construction, which can automatically monitor the inclination of the pipe pile online during the pile sinking operation. When the pipe pile tilts, it can automatically scan and accurately give the inclination direction, inclination angle and inclination starting point of the pipe pile through simulation, and guide the construction personnel to straighten the pipe pile, which reduces the manpower input in the monitoring process and the monitoring results are accurate. In addition, the overall structure is exquisite and can be directly placed by a tripod. The placement position can be freely selected in the construction of mountain steep slopes, and the monitoring of multiple pipe piles can be completed after one placement and leveling, which simplifies the monitoring preparation work.

[0006] The objective of the present invention is achieved through the following technical solutions: A verticality monitoring device for steep slope pipe pile construction in mountainous areas, including a laser ranging sensor, a pitch component and a slewing component; The pitch assembly includes a turntable, a pitch frame and a pitch sensor, a support frame and a pitch motor are fixedly arranged on the top surface of the turntable, a worm is rotatably arranged on the top surface of the turntable, the pitch motor is used to drive the worm to rotate, and the pitch sensor is used to monitor the rotation angle of the worm, a pitch axis is rotatably connected to the support frame, the pitch axis is parallel to the turntable, a worm gear is fixedly sleeved on the pitch axis, the worm gear is meshed with the worm, the laser ranging sensor is fixedly installed on the pitch frame, one end of the pitch frame away from the emitting end of the laser ranging sensor is fixedly sleeved on the pitch axis, the laser beam emitted by the laser ranging sensor is coplanar and perpendicular to the axis of the pitch axis, a gear is fixedly connected to the bottom surface of the turntable, the axis of the gear is perpendicular to the turntable and coplanar and perpendicular to the axis of the pitch axis; The rotating assembly includes a carrying plate, which is arranged parallel to the lower side of the rotating plate, and is rotatably connected to the rotating plate. A rotating motor is fixedly mounted on the top surface of the carrying plate, and a reciprocating cylindrical cam is rotatably arranged on the top surface of the carrying plate. The rotating motor is used to drive the reciprocating cylindrical cam to rotate, and the reciprocating cylindrical cam is provided with two spiral grooves with opposite rotation directions. A rack is slidably arranged on the top surface of the carrying plate, and a slider is fixedly connected to the rack. The slider is slidably adapted to the two spiral grooves, and the rack is meshed with the gear.

[0007] Furthermore, it also includes a computer and a controller. The laser ranging sensor, pitch motor, pitch sensor and rotary motor are all electrically connected to the controller. The controller can transmit the measurement data detected by the laser ranging sensor and the worm rotation angle data detected by the pitch sensor to the computer in real time.

[0008] Furthermore, it also includes a leveling component, which includes a chassis, a leveling plate is connected to the chassis via three foot screws, the supporting plate is arranged parallel to the top of the leveling plate, and the supporting plate is rotatably connected to the leveling plate.

[0009] Specifically, a plurality of locking screws are threadedly connected to the carrier plate, and when the locking screws are tightened, the carrier plate and the leveling plate can be fixed.

[0010] Furthermore, it also includes a tripod, and the chassis is installed on the top surface of the tripod head by bolts.

[0011] Specifically, a first level is fixedly mounted on the laser ranging sensor, and a second level is fixedly mounted on the rotating disk.

[0012] Specifically, one end of the worm is fixedly sleeved with a first adjusting hand wheel, and one end of the reciprocating cylindrical cam is fixedly sleeved with a second adjusting hand wheel.

[0013] The beneficial effects of the present invention are: The verticality monitoring device for the construction of steep slope pipe piles in mountainous areas includes a laser rangefinder sensor, a pitch assembly and a slewing assembly; the pitch assembly includes a slewing plate, a pitch frame and a pitch sensor, the laser rangefinder sensor is installed on the pitch frame, one end of the pitch frame is rotatably connected to the slewing plate, a slewing motor and a worm gear mechanism are arranged on the slewing plate, when the slewing motor rotates, the worm gear mechanism can drive the laser rangefinder sensor to pitch on the slewing plate, the pitch sensor can accurately monitor the pitch angle of the laser rangefinder sensor, and when the laser rangefinder sensor irradiates When measuring a certain point, the height value of the measuring point, that is, the equivalent horizontal measurement value at the height, can be converted according to the distance value fed back by the laser ranging sensor and the angle value fed back by the pitch sensor; the rotating assembly includes a carrying plate, which is parallel and rotatably connected below the rotating plate, and a rotating motor, a reciprocating cylindrical cam and a rack are arranged on the carrying plate, and a gear is arranged on the rotating plate. The rotating motor can drive the reciprocating cylindrical cam to rotate at a uniform speed, and then drive the rack to slide back and forth at a uniform speed, and then drive the rotating plate and the laser ranging sensor to swing back and forth at a uniform angular speed through the gear.

[0014] During pile driving construction, the pitch component can be fixed first, and the laser beam emitted by the laser distance sensor can be hit on the pile by rotation, and the minimum point of the laser distance sensor measurement can be found as the reference point by reciprocating rotation; then the rotation component can be fixed, and the laser distance sensor can be pitched for vertical scanning. During the vertical scanning process, the distance value measured by the laser distance sensor and the angle value measured by the pitch sensor can be converted into equivalent horizontal measurement values ​​in real time for comparison. When the equivalent horizontal measurement value remains unchanged, it indicates that the pile has not tilted. Continuous reciprocating vertical scanning and continuous comparison during the construction process can realize online monitoring of the verticality of the pile during the construction process. In this process, the axis position of the pile in the vertical state can be recorded in combination with the diameter of the pile. When the equivalent horizontal measurement value changes during the vertical scanning process, it indicates that the pipe pile is tilted. At this time, the construction is suspended and the horizontal slice scanning mode is started. In this mode, the pitch motor is first stopped, and the rotary motor is started to drive the reciprocating cylindrical cam to rotate at a uniform speed, thereby driving the laser ranging sensor to swing back and forth at a uniform speed. During the gap time from the laser ranging sensor swinging to the light spot leaving the pipe pile, the pitch motor is rotated to a set angle. The computer converts the actual distance value measured by the laser ranging sensor and the actual angle value measured by the pitch sensor into equivalent horizontal measurement values ​​in real time for recording, and simulates the outer contour of the pipe pile facing the laser ranging sensor on the side facing the laser ranging sensor in combination with the rotation speed of the rotary motor, that is, the swing angular velocity of the laser ranging sensor, and then simulates the axis position through the diameter of the pipe pile. By comparing the axis position with the axis position when the pipe pile is in a vertical state, the tilt direction, tilt angle, and tilt starting point data of the pipe pile can be accurately detected.

[0015] The verticality monitoring device for steep slope pipe pile construction in mountainous areas has a sophisticated overall structure and can be placed directly on a tripod. Compared with existing monitoring methods, it has the following main advantages: First, the verticality monitoring device for steep slope pipe pile construction in the mountain can be set at any position where the detection laser can be hit on the pipe pile. There is no need to locate the measuring station or draw a reference line on the pipe pile, which eliminates the influence of errors generated in the process of drawing the reference line and locating the base station, making the measurement result more accurate. In terms of specific structural design, its pitch component adjusts the pitch angle of the laser ranging sensor through a worm gear mechanism, and utilizes the amplification effect of the speed ratio of the worm gear mechanism to make the pitch angle of the laser ranging sensor converted by monitoring the rotation angle of the worm more accurate. The pitch of the ranging sensor can achieve equivalent horizontal measurement of long distances on the pipe pile, which enlarges the measurement range and makes it easier to monitor the inclination of the pipe pile. In addition, the worm gear mechanism also has a self-locking feature, which is beneficial to the accuracy of data during horizontal slice scanning. Its rotary component drives the rack to slide back and forth through a reciprocating cylindrical cam, and the rack slides back and forth at a uniform speed when the rotary motor rotates at a uniform speed, and then the laser ranging sensor is driven by the gear to swing back and forth at a uniform angular velocity. The contour of one side of the horizontal section of the pipe pile can be accurately simulated directly in combination with its swing speed. In addition, the cylindrical cam mechanism also has a self-locking feature, which is beneficial to the accuracy of data when the verticality is monitored by the pitch method mentioned above.

[0016] Secondly, the verticality monitoring device for the construction of steep mountain slope pipe piles only needs to set up one monitoring point to realize the online monitoring of the verticality of the pipe piles. Compared with the two-point monitoring form of theodolite, its installation and leveling process is relatively convenient. Since the laser ranging sensor has the characteristics of long range and high accuracy, it is not restricted by terrain conditions during the construction of steep mountain slopes. It can be installed on a relatively flat ground, and after completing one installation and leveling, the construction process of multiple pipe piles can be monitored separately, which simplifies the monitoring preparation work.

[0017] Thirdly, the verticality monitoring device for the construction of steep slope pipe piles in mountains realizes automatic monitoring of the verticality of the pipe piles. After the pipe piles are tilted, the horizontal slice scanning and simulation work can be automatically completed under control, and the detection work does not require excessive manpower investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a verticality monitoring device for mountain steep slope pipe pile construction according to the present invention; Figure 2 It is a structural schematic diagram of the pitch component in the verticality monitoring device for the construction of steep slope pipe piles in a mountain area according to the present invention; Figure 3 It is a structural schematic diagram of a rotary component and a leveling component in a verticality monitoring device for mountain steep slope pipe pile construction of the present invention; Figure 4 It is a schematic diagram of the verticality monitoring device for mountain steep slope pipe pile construction of the present invention when it is installed on a tripod; In the figure, 1-laser ranging sensor, 2-turntable, 3-pitch frame, 4-support frame, 5-pitch motor, 6-worm, 7-pitch axis, 8-worm wheel, 9-carrying plate, 10-rotating motor, 11-reciprocating cylindrical cam, 12-rack, 13-slider, 14-gear, 15-chassis, 16-foot screw, 17-locking screw, 18-second adjustment handwheel, 19-tripod, 20-first level, 21-second level, 22-first adjustment handwheel. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0020] like Figures 1 to 4 As shown, the verticality monitoring device for the construction of steep slope pipe piles in mountains includes a laser distance sensor 1, a pitch component and a rotation component. The laser distance sensor 1 is an existing component, which can emit laser forward and measure the distance between the obstacle in front (measuring point) and the laser distance sensor 1 through laser reflection, and has the characteristics of long measuring range and high accuracy.

[0021] The above pitch assembly structure is as follows Figure 2 As shown, it includes a turntable 2, a pitch frame 3 and a pitch sensor. A support frame 4 and a pitch motor 5 are fixedly arranged on the top surface of the turntable 2. A worm 6 is rotatably arranged on the top surface of the turntable 2. The output shaft of the pitch motor 5 is fixedly connected to one end of the worm 6. The pitch motor 5 can drive the worm 6 to rotate. A pitch axis 7 is rotatably connected to the support frame 4. The pitch axis 7 is parallel to the turntable 2. A worm wheel 8 is fixedly sleeved on the pitch axis 7. The worm wheel 8 is meshed with the worm 6. When the worm 6 rotates, the pitch axis 7 can be driven to rotate by the worm wheel 8. The laser distance sensor 1 is fixedly mounted on the pitch frame 3. One end of the pitch frame 3 away from the transmitting end of the laser distance sensor 1 is fixedly sleeved on the pitch axis 7. The laser beam emitted by the laser distance sensor 1 is coplanar and perpendicular to the axis of the pitch axis 7, so that the turntable 2 is placed horizontally. When the pitch axis 7 rotates, the pitch frame 3 and the laser distance sensor 1 can be driven to swing in the pitch direction. The aforementioned pitch sensor can monitor the rotation angle of the worm 6 (the monitored angle is an absolute angle, that is, each additional rotation of the worm 6 from the initial position corresponds to an increase of 360 degrees). Therefore, combined with the meshing speed ratio of the worm 6 and the worm wheel 8, the rotation angle of the worm wheel 8 and the pitch axis 7 can be accurately calculated, and then the pitch angle of the laser ranging sensor 1 can be accurately obtained.

[0022] When the pitch assembly is in use, the turntable 2 is in a horizontal state, and the laser emitted by the laser ranging sensor 1 is horizontal, which is the zero position of the angle monitored by the pitch sensor. When the pitch motor 5 rotates, the measured value of the laser ranging sensor 1 and the angle value monitored by the pitch sensor can be converted into an equivalent horizontal measured value in the vertical direction of the pitch axis 7. For example, suppose the numerical height between the measuring point and the axis of the pitch axis 7 is h, and it is known that the distance between the laser ranging sensor 1 and the axis of the pitch axis 7 is k (the laser ranging sensor 1 is fixedly installed on the pitch frame 3, and the distance k is the design dimension). The pitch frame 3 is swung and tilted around the pitch axis 7 until the laser beam of the laser ranging sensor 1 is facing the measuring point. At this time, the distance from the laser ranging sensor 1 to the measuring point can be measured by the laser ranging sensor 1 as L, and the swing angle of the pitch axis 7 can be measured by the pitch sensor as θ. According to the triangle calculation formula, the vertical height between the measuring point and the axis of the pitch axis 7 is h=(L+k)*sinθ, and the equivalent horizontal measurement value from directly above the axis of the pitch axis 7 to the measuring point is Lθ=(L+k)*cosθ.

[0023] Combination Figure 1 , Figure 3 As shown, the above-mentioned rotary assembly includes a carrier plate 9, which is arranged parallel to the lower side of the rotary plate 2, and the rotary plate 2 is rotatably arranged on the carrier plate 9. A rotary motor 10 is fixedly installed on the top surface of the carrier plate 9, and a reciprocating cylindrical cam 11 is rotatably connected to the top surface of the carrier plate 9, and a rack 12 is slidably arranged on the top surface of the carrier plate 9, and a slider 13 is fixedly connected to the rack 12. The above-mentioned reciprocating cylindrical cam 11 is provided with two spiral grooves with opposite rotation directions, and the slider 13 is provided with a shifting block, which is slidably adapted and arranged in the spiral groove. The output shaft of the rotary motor 10 is fixedly connected to one end of the reciprocating cylindrical cam 11. When the rotary motor 10 rotates at a uniform speed, it can drive the reciprocating cylindrical cam 11 to rotate at a uniform speed, thereby driving the slider 13 and the rack 12 to slide back and forth at a uniform speed and smoothly. A gear 14 is fixedly connected to the bottom surface of the turntable 2. The axis of the gear 14 is perpendicular to the turntable 2 and coplanar with the axis of the pitch axis 7. The rack 12 is meshed with the gear 14. When the rack 12 slides back and forth, the turntable 2 and the laser ranging sensor 1 can be driven to swing back and forth through the gear 14.

[0024] When the rotary assembly is in use, the carrier plate 9 and the rotating disk 2 are kept horizontal. The rotating motor 10 rotates at a uniform speed, which can drive the rotating disk 2 and the laser ranging sensor 1 to swing back and forth at a uniform speed in the horizontal direction. According to the equivalent horizontal measurement value Lθ corresponding to the laser ranging sensor 1 during the horizontal swing, a horizontal slice scan of the obstacle facing the laser ranging sensor 1 can be achieved.

[0025] The verticality monitoring device for the construction of steep slope pipe piles in mountainous areas also includes a computer and a controller. The aforementioned laser distance sensor 1, pitch motor 5, pitch sensor and rotary motor 10 are all electrically connected to the controller. The controller can transmit the measured value data detected by the laser distance sensor 1 and the rotation angle data of the worm 6 detected by the pitch sensor to the computer in real time. The computer can monitor and feedback the inclination of the pipe pile in real time by sorting, converting or simulating the data. Specifically, the following steps can be followed during the construction of the pipe pile: S1. The verticality monitoring device for the construction of steep slope pipe piles is fixedly placed at an appropriate position outside the construction safety distance, and the bearing plate 9 and the rotating plate 2 are adjusted to be horizontal. Then, the laser emitted by the laser ranging sensor 1 is adjusted to be horizontal through the pitch motor 5, and the measured value of the pitch sensor is reset to zero.

[0026] S2, erect the pipe pile, drive it into the pile hole and center and straighten the pipe pile. Since the pipe pile is cylindrical, when centering and straightening, first use the rotary motor 10 to make the turntable 2 rotate horizontally to hit the laser on the outer wall of the pipe pile, and adjust it to the minimum value measured by the laser distance sensor 1 through reciprocating rotation as the reference point, then stop rotating; then adjust the laser distance sensor 1 to pitch motion through the pitch motor 5. In this process, the computer converts the distance measurement value L of the laser distance sensor 1 and the swing angle θ measured by the pitch sensor into an equivalent horizontal measurement value Lθ for comparison. If the equivalent horizontal measurement value Lθ remains unchanged (in actual operation, the surface error of the pipe pile is considered to be set as a threshold), it means that the pipe pile has been centered and straightened, otherwise the pipe pile is adjusted and the above process is repeated until the pipe pile is straightened. It should be understood that when used in the installation of pipe piles on steep slopes in mountains, if the verticality monitoring device is installed in a lower position and the laser cannot be directly projected onto the pipe pile by horizontally rotating the turntable 2, subsequent operations can be completed by adjusting the height of the laser measuring point by pitch, and the equivalent horizontal measurement value Lθ is always used for comparison during detection.

[0027] S3. Before the pile driving operation, the laser distance sensor 1 is kept facing the reference point in the horizontal rotation direction (the position of the laser distance sensor 1 when the measured value is the smallest during the horizontal rotation process, at which time the rotary motor 10 stops rotating and self-locking is achieved through the cylindrical cam mechanism), the pitch motor 5 is started to drive the laser distance sensor 1 to pitch, and the verticality check of the pile is completed. The computer records the equivalent horizontal measurement value Lθ of the pile in the vertical state and combines the pile diameter to simulate and record the axis position of the pile when it is vertical as the vertical reference axis.

[0028] S4. During the pile sinking process, the laser distance sensor 1 is kept facing the reference point in the horizontal rotation direction, and the pitch motor 5 is started to automatically reciprocate at the set speed and number of rotations, driving the laser distance sensor 1 to continuously perform vertical reciprocating scanning; during the vertical reciprocating scanning process, the distance measurement value L measured by the laser distance sensor 1 and the swing angle θ value measured by the pitch sensor are transmitted to the computer in real time, and the computer converts them into equivalent horizontal measurement values ​​Lθ for continuous comparison. If the equivalent horizontal measurement value Lθ remains unchanged, it indicates that the pile has not tilted, and the pile sinking operation can be continued until the construction is completed; if the equivalent horizontal measurement value Lθ changes, it indicates that the pile has tilted, and a warning is issued. In specific implementation, the mountain steep slope pile construction verticality monitoring device also includes an interactive device, which is carried by the construction personnel and is connected to the computer for communication, and is used to receive computer warning signals, detection data, etc. and issue operation instructions to the computer.

[0029] S5. When the pile is detected to be tilted, construction is suspended. The construction personnel issue a recheck instruction. The controller controls the pitch motor 5 to start according to the set program, driving the laser ranging sensor 1 to complete a vertical reciprocating scan for rechecking to determine whether it is a false alarm. If it is a false alarm, construction continues. If it is not a false alarm, a scanning instruction is issued to execute S5.

[0030] S6, start the horizontal slice scanning mode. In this mode, the pitch motor 5 is first rotated to make the pitch sensor return to zero (or set angle) and then stopped. Under the self-locking action of the worm gear mechanism, the laser distance sensor 1 is kept unchanged in the pitch direction; then the rotary motor 10 is continuously rotated at a uniform speed to drive the laser distance sensor 1 to swing back and forth horizontally; when the laser distance sensor 1 swings to the position area close to the two ends of its stroke, that is, in the time gap when the laser spot leaves the pile, the pitch motor 5 is automatically controlled to rotate a set number of circles and then stop. In this way, horizontal slice scanning can be performed on different height positions of the side of the pile facing the laser distance sensor 1. In this process, the distance measurement value L detected by the laser distance sensor 1 is transmitted to the computer in real time. The computer can convert the real-time swing angle θ measured by the pitch sensor into an equivalent horizontal measurement value Lθ, and can calculate the height h of each horizontal slice relative to the axis of the pitch axis 7 accordingly. In combination with the rotation speed of the rotary motor 10, the outer contour detected by the horizontal slice of the pile at different heights h can be drawn. It should be noted that in this process, the computer also screens the equivalent horizontal measurement value Lθ. Specifically, during each slice scanning process, as the equivalent horizontal measurement value Lθ changes continuously, when the data suddenly changes or is lost, it indicates that the laser spot has left the pipe pile, and this part of the data is discarded; and a control signal is sent at the moment when the data suddenly changes or is lost, and the controller automatically completes the above-mentioned process of controlling the pitch motor 5 to rotate and adjust the horizontal slice height.

[0031] S7. The computer performs simulation by retaining the equivalent horizontal measurement value Lθ, the rotation speed of the rotary motor 10 and the height h of each horizontal slice. Since the outer contour shape of the horizontal slices of the cylindrical pipe pile at each height is the same at any inclination angle, the outer contour shape of this side can be simulated by the measurement data of one side of the cylindrical pipe pile. The axis position of the pipe pile can be simulated in combination with the diameter of the cylindrical pipe pile. The axis position is compared with the position of the aforementioned vertical reference axis to accurately obtain the inclination direction, inclination angle and inclination starting point position data of the pipe pile. These data are fed back to the interactive device, and the construction personnel can carry out straightening operations accordingly.

[0032] According to the above process, the verticality monitoring device for steep slope pipe pile construction in mountainous areas can automatically and continuously monitor the verticality of the pipe piles in real time during the pile sinking operation. When the pipe piles tilt, it can alert the construction personnel to suspend construction in time. Afterwards, the tilt direction, tilt angle and tilt starting point position data of the pipe piles can be accurately obtained through horizontal slice scanning and simulation, which is conducive to the construction personnel to quickly carry out straightening operations.

[0033] Compared with the existing monitoring methods, the verticality monitoring device for steep slope pipe pile construction in mountainous areas has the following advantages: First, the verticality monitoring device for steep slope pipe pile construction in the mountain can be set at any position where the detection laser can be hit on the pipe pile. There is no need to locate the measuring station or draw a reference line on the pipe pile, which eliminates the influence of errors generated in the process of drawing the reference line and locating the base station, making the measurement result more accurate. In terms of specific structural design, its pitch component adjusts the pitch angle of the laser ranging sensor 1 through a worm gear mechanism, and utilizes the amplification effect of the speed ratio of the worm gear mechanism to more accurately calculate the pitch angle of the laser ranging sensor 1 by monitoring the rotation angle of the worm 6. The pitch of the ranging sensor 1 can achieve equivalent horizontal measurement of long distances on the pipe pile, which enlarges the measurement range and makes it easier to monitor the inclination of the pipe pile. In addition, the worm gear mechanism also has a self-locking characteristic, which is beneficial to the accuracy of data during horizontal slice scanning; its rotary component drives the rack 12 to slide back and forth through the reciprocating cylindrical cam 11, and the rack 12 slides back and forth at a uniform speed when the rotary motor 10 rotates at a uniform speed, and then the laser ranging sensor 1 is driven by the gear 14 to swing back and forth at a uniform angular velocity, and the contour of one side of the horizontal section of the pipe pile can be accurately simulated directly in combination with its swing speed. In addition, the cylindrical cam mechanism also has a self-locking characteristic, which is beneficial to the accuracy of data when the verticality is monitored by the pitch method mentioned above.

[0034] Secondly, the verticality monitoring device for the construction of steep mountain slope pipe piles only needs to set up one monitoring point to realize the online monitoring of the verticality of the pipe piles. Compared with the two-point monitoring form of theodolite, its installation and leveling process is relatively convenient. Since the laser ranging sensor 1 has the characteristics of long range and high precision, it is not restricted by terrain conditions during the construction of steep mountain slopes. It can be installed on a relatively flat ground, and after completing one installation and leveling, the construction process of multiple pipe piles can be monitored separately, which simplifies the monitoring preparation work.

[0035] Thirdly, the verticality monitoring device for the construction of steep slope pipe piles in mountains realizes automatic monitoring of the verticality of the pipe piles. After the pipe piles are tilted, the horizontal slice scanning and simulation work can be automatically completed under control, and the detection work does not require excessive manpower investment.

[0036] Further, such as Figure 3 As shown, the verticality monitoring device for the construction of steep-slope pipe piles in the mountainous area also includes a leveling assembly, which includes a chassis 15, and a leveling plate (not shown in the figure) is connected to the chassis 15 through three foot screws 16. The aforementioned bearing plate 9 is arranged in parallel above the leveling plate, and the bearing plate 9 is rotatably connected to the leveling plate. The leveling assembly has the same structure as the leveling assembly of the existing theodolite. When the chassis 15 is roughly horizontally fixed, the three foot screws 16 can be adjusted to make the leveling plate horizontal, and then the bearing plate 9 parallel to the leveling plate can be horizontal. The bearing plate 9 is rotatably connected to the leveling plate. After the leveling plate is installed and different pipe piles are replaced for monitoring, the laser beam of the laser distance sensor 1 can be hit on the pipe pile by rotating the bearing plate 9 to complete the rough adjustment of the rotation position of the laser distance sensor 1, and then the compound cylindrical cam 11 is rotated to complete the position fine adjustment of the aforementioned reference point. In specific implementation, a plurality of locking screws 17 are threadedly connected to the carrier plate 9. After the above-mentioned rough adjustment process is completed, tightening the locking screws 17 can fix the carrier plate 9 and the leveling plate; a second adjustment hand wheel 18 is fixedly sleeved at one end of the reciprocating cylindrical cam 11, and the above-mentioned fine adjustment process can be conveniently completed by turning the second adjustment hand wheel 18. It should also be noted that before the above-mentioned rough adjustment process, the reciprocating cylindrical cam 11 needs to be rotated so that the rack 12 is basically in the middle position to avoid affecting the subsequent horizontal slice scanning process.

[0037] When implementing it, Figure 4 As shown, in actual application, it also includes a tripod 19, which is an existing structure and will not be described here. The chassis 15 of the leveling assembly is directly installed on the top surface of the tripod 19 by bolts. Figure 2As shown, a second level 21 is fixedly mounted on the turntable 2, and is used to observe the leveling state of the turntable 2 during the leveling process using the leveling assembly; a first level 20 is fixedly mounted on the laser ranging sensor 1, and when the laser beam of the laser ranging sensor 1 is adjusted to be horizontal by rotating the worm 6 as mentioned above, that is, when the pitch sensor is zeroed, its leveling state can be observed through the first level 20; a first adjusting hand wheel 22 is fixedly sleeved on one end of the worm 6, and the worm 6 can be easily rotated by rotating the first adjusting hand wheel 22 to complete the above-mentioned leveling of the laser ranging sensor 1, that is, the process of adjusting the pitch sensor to zero.

[0038] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A verticality monitoring device for mountain steep slope pipe pile construction, characterized in that: It includes a laser rangefinder sensor, a pitch assembly and a slew assembly; The pitch assembly includes a turntable, a pitch frame and a pitch sensor. A support frame and a pitch motor are fixedly arranged on the top surface of the turntable, a worm is rotatably arranged on the top surface of the turntable, the pitch motor is used to drive the worm to rotate, and the pitch sensor is used to monitor the rotation angle of the worm. The support frame is rotatably connected with a pitch axis, the pitch axis is parallel to the rotating disk, a worm wheel is fixedly sleeved on the pitch axis, and the worm wheel is meshed with the worm. The laser distance measuring sensor is fixedly mounted on the pitch frame, and one end of the pitch frame away from the emitting end of the laser distance measuring sensor is fixedly sleeved on the pitch axis. The laser beam emitted by the laser distance measuring sensor is coplanar and perpendicular to the axis of the pitch axis. A gear is fixedly connected to the bottom surface of the turntable, and the axis of the gear is perpendicular to the turntable and coplanar with the axis of the pitch axis; The rotary assembly includes a carrier plate, which is arranged parallel to the lower side of the rotary plate and is rotatably connected to the rotary plate. A rotary motor is fixedly mounted on the top surface of the carrier plate, and a reciprocating cylindrical cam is rotatably arranged on the top surface of the carrier plate. The rotary motor is used to drive the reciprocating cylindrical cam to rotate, and the reciprocating cylindrical cam is provided with two spiral grooves with opposite rotation directions. A rack is slidably provided on the top surface of the carrier plate, a slider is fixedly connected to the rack, the slider is slidably matched with the two spiral grooves, and the rack is meshed with the gear.

2. The verticality monitoring device for steep slope pipe pile construction in mountainous areas according to claim 1 is characterized in that: It also includes a computer and a controller. The laser ranging sensor, pitch motor, pitch sensor and rotary motor are all electrically connected to the controller. The controller can transmit the measured value data detected by the laser ranging sensor and the worm rotation angle data detected by the pitch sensor to the computer in real time.

3. The verticality monitoring device for mountain steep slope pipe pile construction according to claim 2 is characterized in that: It also includes a leveling component, which includes a chassis, a leveling plate is connected to the chassis via three foot screws, the carrying plate is arranged parallel to the leveling plate, and the carrying plate is rotatably connected to the leveling plate.

4. The verticality monitoring device for mountain steep slope pipe pile construction according to claim 3 is characterized in that: A plurality of locking screws are threadedly connected to the carrier plate, and when the locking screws are tightened, the carrier plate and the leveling plate can be fixed.

5. The verticality monitoring device for mountain steep slope pipe pile construction according to claim 3 is characterized in that: It also includes a tripod, and the chassis is installed on the top surface of the tripod head through bolts.

6. The verticality monitoring device for mountain steep slope pipe pile construction according to claim 1 is characterized in that: A first level is fixedly mounted on the laser distance measuring sensor, and a second level is fixedly mounted on the rotating disk.

7. The verticality monitoring device for mountain steep slope pipe pile construction according to claim 1 is characterized in that: One end of the worm is fixedly sleeved with a first adjusting hand wheel, and one end of the reciprocating cylindrical cam is fixedly sleeved with a second adjusting hand wheel.

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