Shield tunnel vault settlement monitoring device

Abstract

The utility model relates to a shield tunnel vault settlement monitoring device, which belongs to the technical field of tunnel settlement monitoring and comprises a connecting block, the left side and the right side of the connecting block are respectively provided with a supporting assembly capable of freely adjusting the height, and the top of the connecting block is provided with a monitoring assembly capable of automatically monitoring the settlement condition. The monitoring assembly is provided with a distance measuring assembly which extends out of the monitoring assembly and can monitor distance changes, a processor is fixed to the inner top wall of the monitoring assembly, and a signal transmitter is fixed to the top of the monitoring assembly. According to the shield tunnel vault settlement monitoring device, when the tunnel vault settles, the receiver settles along with settlement, at the moment, the receiver cannot receive light of the laser distance measuring sensor, the processor controls the driving motor to rotate, angle adjustment is conducted on the laser distance measuring sensor through the monitoring assembly, and therefore real-time performance is ensured; the signals are transmitted to a monitoring terminal through the signal generator, and alarm is realized through the buzzer alarm.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel settlement monitoring technical field, concretely is a kind of shield tunnel vault settlement monitoring device. BACKGROUND

[0002] In the modern urban construction and traffic development process, shield tunnel construction plays a key role, shield tunnel construction process is extremely complex, geological condition is changeable, from soft soil stratum to rock stratum is involved, and the mechanical characteristics of different strata are greatly different, to accurately grasp the shield tunnel vault settlement condition, timely discover potential risk and take effective countermeasures, therefore, tunnel vault needs to be monitored continuously.

[0003] The existing settlement monitoring technology mostly uses traditional manual measurement, but the real-time performance is not strong, since it is difficult to realize continuous manual measurement, generally, periodic measurement mode is used to save manpower, but the real-time performance is insufficient, and continuous manual measurement is needed, which is time-consuming and laborious, and there are limitations in real-time performance, accuracy and stability, it is difficult to meet the needs of rapidly changing construction environment, therefore, a kind of shield tunnel vault settlement monitoring device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the utility model provides a kind of shield tunnel vault settlement monitoring device, with strong real-time performance and other advantages, solve the problem of settlement detection real-time performance not strong.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of shield tunnel vault settlement monitoring device, including connecting block, the left and right sides of the connecting block are equipped with the support assembly that can freely adjust height, the top of the connecting block is equipped with the monitoring assembly that can automatically monitor settlement condition, monitoring assembly is equipped with the distance measuring assembly that can monitor distance change and extend to the outside of monitoring assembly, the inner top wall of the monitoring assembly is fixed with processor, the top of the monitoring assembly is fixed with signal transmitter;

[0007] The monitoring assembly includes the shell fixed with the top of connecting block, the inner rear wall of the shell is fixed with drive motor, the output shaft of the drive motor is fixed with driving rod, the inner front wall of the shell is rotatably connected with driving rod by bearing, the front and back sidewalls of the shell inner cavity are rotatably connected with driven rod located at the right side of driving rod by bearing, the outer surfaces of driving rod and driven rod are respectively fixed with driving gear and driven gear, the left side of driving gear is engaged with rack extending to the outside of shell, the inner bottom wall of the shell is provided with mounting hole, the inside of mounting hole is provided with stable part extending to the outside of mounting hole, the end of stable part away from mounting hole extends to the inside of rack.

[0008] Further, each of the support assemblies comprises a stable leg fixed with the connecting block, a threaded rod is threadedly connected in the stable leg and extends out of the stable leg, a rotating cylinder is fixed on the outer surface of the threaded rod and below the stable leg, a fixed leg is threadedly connected on the outer surface of the threaded rod and below the rotating cylinder, and a fixed plate is fixed on the bottom of the fixed leg.

[0009] Further, the outer surface of each of the rotating cylinders is fixed with a plurality of friction strips, the outer surface of each of the threaded rods is fixed with two outer thread strips with opposite rotation directions, and the two outer thread strips are threadedly connected with the stable leg and the fixed leg respectively.

[0010] Further, the ranging assembly is composed of a laser ranging sensor and a receiver, the outer surface of the driven rod is fixed with a stable seat, the side of the stable seat away from the driving gear is fixed with the laser ranging sensor, and the laser ranging sensor extends out of the shell.

[0011] Further, a T-shaped groove is formed in the inner left wall of the shell, the left side of the rack is fixed with two T-shaped blocks extending into the T-shaped groove, and the two T-shaped blocks are slidably connected with the T-shaped groove.

[0012] Further, the outer surface of the rack is fixed with a plurality of scale strips, and the top of the shell is fixed with a pointer.

[0013] Further, the stable part comprises a stable rod fixed with the inner bottom wall of the mounting hole, the inner bottom wall of the stable rod is fixed with a stable spring, the top of the stable spring is fixed with a moving rod extending out of the stable rod, and the moving rod extends into the rack.

[0014] Further, the bottom of the rack is provided with an extension hole, and the moving rod extends into the rack through the extension hole.

[0015] Compared with the prior art, the technical scheme has the following beneficial effects:

[0016] When the tunnel vault subsides, the receiver will follow the subsidence, at this time, the receiver cannot receive the light of the laser ranging sensor, at this time, the processor controls the driving motor to rotate, and the laser ranging sensor is adjusted in angle through the monitoring assembly, so that the real-time performance of the vault subsidence distance monitoring is ensured, and the processor analyzes the change of the detection distance of the laser ranging sensor and the angle of rotation of the driving motor, so that the subsidence distance at this time is obtained, when the tunnel vault subsidence distance exceeds the threshold value, the monitored distance data and the alarm signal are transmitted to the monitoring terminal through the signal generator, and finally the buzzer emits a buzzing sound, so that the alarm is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model.

[0018] Figure 2 It is a structural schematic view of the monitoring assembly of the utility model;

[0019] Figure 3 It is a three-dimensional exploded view of the stable part of the utility model;

[0020] In the figure: 1, connecting block; 2, support assembly; 201, stable leg; 202, threaded rod; 203, rotating cylinder; 204, fixed leg; 205, fixed plate; 206, friction strip; 3, monitoring assembly; 301, shell; 302, driving rod; 303, driven rod; 304, driving gear; 305, driven gear; 306, rack; 307, stable part; 3071, stable rod; 3072, stable spring; 3073, moving rod; 308, T-shaped groove; 309, T-shaped block; 310, scale bar; 311, pointer; 4, distance measuring assembly; 401, laser distance measuring sensor; 402, receiver; 403, stable seat; 5, processor; 6 signal transmitter. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figure 1 In the embodiment, the shield tunnel arch top settlement monitoring device comprises a connecting block 1, the connecting block 1 plays a good connecting role, left and right sides of the connecting block 1 are each provided with a support assembly 2 capable of freely adjusting height, a top of the connecting block 1 is provided with a monitoring assembly 3 capable of automatically monitoring settlement condition, the monitoring assembly 3 is provided with a distance measuring assembly 4 extending to outside of the monitoring assembly 3 and capable of monitoring distance change, a top inner wall of the monitoring assembly 3 is fixed with a processor 5, the processor 5 can analyze distance change monitored by the distance measuring assembly 4 and angle change of the monitoring assembly 3, so as to obtain settlement distance, the top of the monitoring assembly 3 is fixed with a signal transmitter 6, when the settlement distance exceeds a threshold value, the signal transmitter 6 will send a signal to a monitoring terminal, finally a buzzer alarm is sounded, so as to realize alarm.

[0023] Specifically, in the embodiment, each support assembly 2 comprises a stable leg 201 fixed with the connecting block 1, a threaded rod 202 threadedly connected in the stable leg 201 and extending out of the stable leg 201, a rotating cylinder 203 fixed on the outer surface of the threaded rod 202 and below the stable leg 201, a fixed leg 204 threadedly connected on the outer surface of the threaded rod 202 and below the rotating cylinder 203, and a fixed plate 205 fixed on the bottom of the fixed leg 204; in use, the threaded rod 202 is rotated by rotating the rotating cylinder 203, so that the length of the device is adjusted; and after the length of the device is adjusted, the device is installed by fixing the fixed plate 205 to the ground.

[0024] It should be further explained that the outer surface of each rotating cylinder 203 is fixed with a plurality of friction strips 206, the rotating cylinder 203 is conveniently rotated by using the friction strips 206, the outer surface of each threaded rod 202 is fixed with two outer thread strips with opposite rotation directions, and the two outer thread strips are threadedly connected with the stable leg 201 and the fixed leg 204 respectively, and the two outer thread strips with opposite rotation directions ensure that the stable leg 201 and the fixed leg 204 at both ends of the threaded rod 202 are simultaneously moved under the same driving force.

[0025] In the embodiment, the length of the device is conveniently adjusted by rotating the rotating cylinder 203, so that different use environments are adapted, and efficient distance measurement is conveniently realized by cooperating with the monitoring assembly 3 and the distance measuring assembly 4, so that the real-time performance of the device is effectively improved.

[0026] Please refer to Figures 1 to 3 , in order to improve the real-time performance of the device, the monitoring assembly 3 in the embodiment comprises an outer shell 301 fixed with the top of the connecting block 1, the outer shell 301 can provide a stable environment for the device, effectively protecting the internal parts, a driving motor is fixed on the inner rear wall of the outer shell 301, a driving rod 302 is fixed on the output shaft of the driving motor, the driving motor realizes power output, and the driving rod 302 is stably rotated, the driving rod 302 and the inner front wall of the outer shell 301 are rotationally connected through a bearing, a driven rod 303 located on the right side of the driving rod 302 is rotationally connected between the front and rear side walls of the inner cavity of the outer shell 301 through a bearing, a driving gear 304 and a driven gear 305 are respectively fixed on the outer surfaces of the driving rod 302 and the driven rod 303, the power output by the driving motor is transmitted to the driven gear 305 through the driving gear 304, so that the distance measuring assembly 4 can stably work, a rack 306 extending out of the outer shell 301 is engaged with the left side of the driving gear 304, an installation hole is formed in the inner bottom wall of the outer shell 301, a stable part 307 extending out of the installation hole is arranged in the installation hole, one end of the stable part 307 away from the installation hole extends into the rack 306, the driving gear 304 can drive the rack 306 to move up and down, so that the settlement distance of the tunnel vault can be roughly estimated by the moving distance of the rack 306.

[0027] Specifically, in this embodiment, a T-shaped groove 308 is formed on the inner left wall of the shell 301, and two T-shaped blocks 309 extending into the T-shaped groove 308 are fixed to the left side of the rack 306. The two T-shaped blocks 309 are both in sliding connection with the T-shaped groove 308, and the T-shaped groove 308 and the T-shaped block 309 can effectively improve the stability of the rack 306. The outer surface of the rack 306 is fixed with a plurality of scale bars 310, and the top of the shell 301 is fixed with a pointer 311. Through the cooperation of the scale bar 310 and the pointer 311, it is convenient for the user to observe the distance change.

[0028] Specifically, in this embodiment, the stabilizing part 307 includes a stabilizing rod 3071 fixed to the inner bottom wall of the mounting hole, a stabilizing spring 3072 fixed to the inner bottom wall of the stabilizing rod 3071, and a moving rod 3073 extending out of the stabilizing spring 3072. The stabilizing rod 3071 can effectively limit the moving rod 3073, further limit the rack 306 through the moving rod 3073, and further improve the stability of the rack 306. The moving rod 3073 extends into the rack 306, and the bottom of the rack 306 is provided with an extension hole. The moving rod 3073 extends into the rack 306 through the extension hole.

[0029] Specifically, in this embodiment, the distance measuring assembly 4 is composed of a laser distance measuring sensor 401 and a receiver 402. A stabilizing seat 403 is fixed to the outer surface of the driven rod 303, and the side of the stabilizing seat 403 away from the driving gear 304 is fixed with the laser distance measuring sensor 401. When the driven rod 303 rotates, the stabilizing seat 403 will rotate, and the stabilizing seat 403 will drive the laser distance measuring sensor 401 to rotate. The laser distance measuring sensor 401 extends out of the shell 301, and the right side of the shell 301 is in an open shape, which can stably rotate the laser distance measuring sensor 401. The receiver 402 is fixed at the tunnel vault, and when the tunnel vault settles, it can displace the receiver 402 downward. The receiver 402 and the laser distance measuring sensor 401 are in a signal connection relationship, and the laser distance measuring sensor 401 and the processor 5 are in an electrical connection relationship. When the receiver 402 moves downward, the signal emitted by the laser distance measuring sensor 401 cannot be received by the receiver 402. At this time, the laser distance measuring sensor 401 cannot measure the distance, and transmits the electrical signal to the processor 5. The processor 5 can control the driving motor to rotate, and further promote the laser distance measuring sensor 401 to adjust the angle.

[0030] In this embodiment, the driving motor drives the driving rod 302 to rotate, which drives the rack 306 to move and the driven rod 303 to rotate through the driving gear 304. The rotation of the driven rod 303 drives the laser distance measuring sensor 401 to rotate. In this way, by recording the distance change monitored by the distance measuring assembly 4, the settlement distance of the tunnel vault can be analyzed.

[0031] In the embodiment, the distance change data between the laser ranging sensor 401 and the receiver 402 after the receiver 402 is lowered is detected first, and then the monitored distance data (distance change data) is transmitted to the data acquisition and transmission module, the data acquisition and transmission module comprising a processor 5 and a signal transmitter 6, and the processor 5 records the driving motor operation angle at the same time. After centralized analysis by the processor 5, the monitored distance data (i.e. settlement distance) is sent to the monitoring terminal through the signal transmitter 6. When the monitored settlement distance exceeds the threshold value, an alarm sound is emitted through the alarm module to realize the alarm, and the alarm module is a buzzer.

[0032] It can be understood that the data (i.e. settlement distance data) can be centrally analyzed through the data acquisition and transmission module, and the signal is successfully transmitted through the signal transmitter 6, thereby ensuring real-time performance and achieving a good warning effect. The power supply is arranged in the connecting block 1, and the back of the connecting block 1 is fixed with a receiving port electrically connected with the power supply.

[0033] The electrical components appearing in the text are electrically connected with the processor 5 and the power supply. The control mode of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming of the person skilled in the art. The power supply also belongs to the common knowledge in the art. And the utility model is mainly used for protecting mechanical devices, so the control mode and circuit connection of the utility model will not be explained in detail.

[0034] The working principle of the above embodiment is as follows:

[0035] First, rotate the rotating cylinder 203 to rotate the threaded rod 202. After adjusting the device to the appropriate length, place the device vertically on the ground, fix the fixed plate 205 to the ground, then fix the receiver 402 at the top of the shield tunnel, and then turn on the laser ranging sensor 401 and start the driving motor. Adjust the angle of the laser ranging sensor 401 to complete the installation.

[0036] When the tunnel vault subsides, the receiver 402 will follow the subsidence, at this time the receiver 402 cannot receive the light of the laser ranging sensor 401, at this time the processor 5 will control the driving motor to rotate, when the driving motor rotates, the driving motor will further drive the driving gear 304 to rotate through the driving rod 302, when the driving gear 304 rotates, power will be transmitted to the rack 306 and the driven gear 305 at the same time, the driven gear 305 will promote the driven rod 303 to rotate, when the driven rod 303 rotates, the laser ranging sensor 401 will be further promoted to rotate through the stable seat 403, until the light on the laser ranging sensor 401 shines on the receiver 402 again, so as to ensure the real-time of the tunnel vault subsidence monitoring, at the same time, the processor 5 will analyze the change of the distance detected by the laser ranging sensor 401 at this time and the angle of the driving motor rotation, so as to obtain the subsidence distance at this time, and also can roughly estimate the subsidence distance through the scale on the rack 306, when the subsidence distance exceeds the threshold value, the signal transmitter 6 will transmit the signal to the monitoring terminal, finally the monitoring terminal will transmit the data to the buzzer through the wireless network, so as to realize the alarm.

[0037] It should be noted that the relative terms such as first and second and the like are used herein solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0038] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the present application.

Claims

1. A device for monitoring settlement of a shield tunnel vault, comprising a connecting block (1), characterized in that: The left and right sides of the connecting block (1) are provided with support assemblies (2) with adjustable height, the top of the connecting block (1) is provided with a monitoring assembly (3) capable of automatically monitoring the settlement condition, the monitoring assembly (3) is provided with a distance measuring assembly (4) extending out of the monitoring assembly (3) and capable of monitoring the distance change, the inner top wall of the monitoring assembly (3) is fixedly provided with a processor (5), and the top of the monitoring assembly (3) is fixedly provided with a signal transmitter (6); The monitoring assembly (3) comprises an outer shell (301) fixedly connected with the top of the connecting block (1), a driving motor is fixedly arranged on the inner rear wall of the outer shell (301), a driving rod (302) is fixedly arranged on the output shaft of the driving motor, the driving rod (302) is rotatably connected with the inner front wall of the outer shell (301) through a bearing, a driven rod (303) located at the right side of the driving rod (302) is rotatably connected between the front and rear side walls in the inner cavity of the outer shell (301) through a bearing, a driving gear (304) and a driven gear (305) are fixedly arranged on the outer surfaces of the driving rod (302) and the driven rod (303) respectively, a rack (306) extending out of the outer shell (301) is meshed with the left side of the driving gear (304), an installation hole is formed in the inner bottom wall of the outer shell (301), a stable part (307) extending out of the installation hole is arranged in the installation hole, and the end of the stable part (307) away from the installation hole extends into the rack (306).

2. The device for monitoring the settlement of the vault of a shield tunnel according to claim 1, characterized in that: Each support assembly (2) comprises a stable leg (201) fixedly connected with the connecting block (1), a threaded rod (202) extending out of the stable leg (201) is screw-connected in the stable leg (201), a rotating cylinder (203) is fixedly arranged on the outer surface of the threaded rod (202) and below the stable leg (201), and a fixed leg (204) is screw-connected on the outer surface of the threaded rod (202) and below the rotating cylinder (203).

3. The device for monitoring the settlement of the vault of a shield tunnel according to claim 2, characterized in that: The outer surface of each rotating cylinder (203) is fixedly provided with a plurality of friction strips (206), the outer surface of each threaded rod (202) is fixedly provided with two outer thread strips with opposite rotation directions, and the two outer thread strips are screw-connected with the stable leg (201) and the fixed leg (204) respectively.

4. The device for monitoring the settlement of the vault of a shield tunnel according to claim 1, characterized in that: The distance measuring assembly (4) is composed of a laser distance measuring sensor (401) and a receiver (402), a stable seat (403) is fixedly arranged on the outer surface of the driven rod (303), the side of the stable seat (403) away from the driving gear (304) is fixedly connected with the laser distance measuring sensor (401), and the laser distance measuring sensor (401) extends out of the outer shell (301).

5. The device for monitoring the settlement of the vault of a shield tunnel according to claim 1, characterized in that: A T-shaped groove (308) is formed in the inner left wall of the outer shell (301), two T-shaped blocks (309) extending into the T-shaped groove (308) are fixedly arranged on the left side of the rack (306), and the two T-shaped blocks (309) are slidably connected with the T-shaped groove (308).

6. The device for monitoring settlement of a crown of a tunnel vault according to claim 1, characterized in that: The outer surface of the rack (306) is fixed with a plurality of scale bars (310), and the top of the shell (301) is fixed with a pointer (311).

7. The device for monitoring settlement of a crown of a tunnel vault according to claim 1, characterized in that: The stabilizing part (307) comprises a stabilizing rod (3071) fixed with the inner bottom wall of the mounting hole, the inner bottom wall of the stabilizing rod (3071) is fixed with a stabilizing spring (3072), the top of the stabilizing spring (3072) is fixed with a moving rod (3073) extending to the outside of the stabilizing rod (3071), and the moving rod (3073) extends into the rack (306).

8. The device for monitoring settlement of a crown of a tunnel vault according to claim 7, characterized in that: The bottom of the rack (306) is provided with an extension hole, and the moving rod (3073) extends into the rack (306) through the extension hole.

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